Workspace.java revision 76128b6359fc430542811fbb32e4a1d593a9ef07
1bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant/* 2bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant * Copyright (C) 2008 The Android Open Source Project 3f5256e16dfc425c1d466f6308d4026d529ce9e0bHoward Hinnant * 4bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant * Licensed under the Apache License, Version 2.0 (the "License"); 5b64f8b07c104c6cc986570ac8ee0ed16a9f23976Howard Hinnant * you may not use this file except in compliance with the License. 6b64f8b07c104c6cc986570ac8ee0ed16a9f23976Howard Hinnant * You may obtain a copy of the License at 7bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant * 8bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant * http://www.apache.org/licenses/LICENSE-2.0 9bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant * 10bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant * Unless required by applicable law or agreed to in writing, software 11bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant * distributed under the License is distributed on an "AS IS" BASIS, 12bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant * See the License for the specific language governing permissions and 14bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant * limitations under the License. 15bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant */ 16bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 17bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantpackage com.android.launcher3; 18bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 19bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.animation.Animator; 20bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.animation.Animator.AnimatorListener; 21bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.animation.AnimatorListenerAdapter; 22bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.animation.AnimatorSet; 23bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.animation.LayoutTransition; 24bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.animation.ObjectAnimator; 25bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.animation.PropertyValuesHolder; 26bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.animation.TimeInterpolator; 27bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.animation.ValueAnimator; 28bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.animation.ValueAnimator.AnimatorUpdateListener; 29bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.app.WallpaperManager; 30bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.appwidget.AppWidgetHostView; 31bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.appwidget.AppWidgetProviderInfo; 32bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.content.ComponentName; 33bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.content.Context; 34bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.content.Intent; 35bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.content.SharedPreferences; 36bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.content.res.Resources; 37bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.content.res.TypedArray; 38bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.graphics.Bitmap; 39bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.graphics.Canvas; 40bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.graphics.Matrix; 41bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.graphics.Point; 42bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.graphics.PointF; 43bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.graphics.Rect; 44bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.graphics.Region.Op; 45bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.graphics.drawable.Drawable; 46bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.net.Uri; 47bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.os.IBinder; 48bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.os.Parcelable; 49bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.support.v4.view.ViewCompat; 50bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.util.AttributeSet; 51bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.util.Log; 52bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.util.SparseArray; 53bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.view.Choreographer; 54bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.view.Display; 55bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.view.MotionEvent; 56bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.view.View; 57bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.view.ViewGroup; 58bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.view.View.OnClickListener; 59bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.view.accessibility.AccessibilityEvent; 60bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.view.accessibility.AccessibilityManager; 61bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.view.accessibility.AccessibilityNodeInfo; 62bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.view.animation.DecelerateInterpolator; 63bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.view.animation.Interpolator; 64bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.widget.TextView; 65bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 66bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport com.android.launcher3.FolderIcon.FolderRingAnimator; 67bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport com.android.launcher3.Launcher.CustomContentCallbacks; 68bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport com.android.launcher3.LauncherSettings.Favorites; 69bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 70bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport java.util.ArrayList; 71bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport java.util.HashMap; 72bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport java.util.HashSet; 73bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport java.util.Iterator; 74bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 75bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant/** 76bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant * The workspace is a wide area with a wallpaper and a finite number of pages. 77bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant * Each page contains a number of icons, folders or widgets the user can 78bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant * interact with. A workspace is meant to be used with a fixed width only. 79bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant */ 80bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantpublic class Workspace extends SmoothPagedView 81bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant implements DropTarget, DragSource, DragScroller, View.OnTouchListener, 82bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant DragController.DragListener, LauncherTransitionable, ViewGroup.OnHierarchyChangeListener, 83bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant Insettable { 84bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private static final String TAG = "Launcher.Workspace"; 85bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 86bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant // Y rotation to apply to the workspace screens 87bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private static final float WORKSPACE_OVERSCROLL_ROTATION = 24f; 88bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 89bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private static final int CHILDREN_OUTLINE_FADE_OUT_DELAY = 0; 90bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private static final int CHILDREN_OUTLINE_FADE_OUT_DURATION = 375; 91bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private static final int CHILDREN_OUTLINE_FADE_IN_DURATION = 100; 92bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 93bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant protected static final int SNAP_OFF_EMPTY_SCREEN_DURATION = 400; 94bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant protected static final int FADE_EMPTY_SCREEN_DURATION = 150; 95bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 96bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private static final int BACKGROUND_FADE_OUT_DURATION = 350; 97bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private static final int ADJACENT_SCREEN_DROP_DURATION = 300; 98bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private static final int FLING_THRESHOLD_VELOCITY = 500; 99bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 100bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private static final float ALPHA_CUTOFF_THRESHOLD = 0.01f; 101bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 102bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant // These animators are used to fade the children's outlines 103bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private ObjectAnimator mChildrenOutlineFadeInAnimation; 104bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private ObjectAnimator mChildrenOutlineFadeOutAnimation; 105bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private float mChildrenOutlineAlpha = 0; 106bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 107bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant // These properties refer to the background protection gradient used for AllApps and Customize 108bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private ValueAnimator mBackgroundFadeInAnimation; 109bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private ValueAnimator mBackgroundFadeOutAnimation; 110bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private Drawable mBackground; 111bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant boolean mDrawBackground = true; 112bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private float mBackgroundAlpha = 0; 113bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 114bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private static final long CUSTOM_CONTENT_GESTURE_DELAY = 200; 115bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private long mTouchDownTime = -1; 116bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private long mCustomContentShowTime = -1; 117bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 118bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private LayoutTransition mLayoutTransition; 119bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private final WallpaperManager mWallpaperManager; 120bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private IBinder mWindowToken; 121bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 122bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private int mOriginalDefaultPage; 123bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private int mDefaultPage; 124bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 125bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private ShortcutAndWidgetContainer mDragSourceInternal; 126bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private static boolean sAccessibilityEnabled; 127bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 128bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant // The screen id used for the empty screen always present to the right. 129bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private final static long EXTRA_EMPTY_SCREEN_ID = -201; 130bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private final static long CUSTOM_CONTENT_SCREEN_ID = -301; 131bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 132bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private HashMap<Long, CellLayout> mWorkspaceScreens = new HashMap<Long, CellLayout>(); 133bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private ArrayList<Long> mScreenOrder = new ArrayList<Long>(); 134bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 135bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private Runnable mRemoveEmptyScreenRunnable; 136bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 137bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant /** 138bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant * CellInfo for the cell that is currently being dragged 139bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant */ 140bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private CellLayout.CellInfo mDragInfo; 141bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 142bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant /** 143bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant * Target drop area calculated during last acceptDrop call. 144bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant */ 145bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private int[] mTargetCell = new int[2]; 146bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private int mDragOverX = -1; 147bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private int mDragOverY = -1; 148bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 149bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant static Rect mLandscapeCellLayoutMetrics = null; 150bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant static Rect mPortraitCellLayoutMetrics = null; 151bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 152bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant CustomContentCallbacks mCustomContentCallbacks; 153bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant boolean mCustomContentShowing; 154bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private float mLastCustomContentScrollProgress = -1f; 155bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private String mCustomContentDescription = ""; 156bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 157bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant /** 158bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant * The CellLayout that is currently being dragged over 159bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant */ 160bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private CellLayout mDragTargetLayout = null; 161bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant /** 162bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant * The CellLayout that we will show as glowing 163bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant */ 164bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private CellLayout mDragOverlappingLayout = null; 165bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 166bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant /** 167bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant * The CellLayout which will be dropped to 168bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant */ 169bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private CellLayout mDropToLayout = null; 170bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 171bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private Launcher mLauncher; 172bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private IconCache mIconCache; 173bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private DragController mDragController; 174bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 175bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant // These are temporary variables to prevent having to allocate a new object just to 176bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant // return an (x, y) value from helper functions. Do NOT use them to maintain other state. 177bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private int[] mTempCell = new int[2]; 178bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private int[] mTempPt = new int[2]; 179bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private int[] mTempEstimate = new int[2]; 180bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private float[] mDragViewVisualCenter = new float[2]; 181bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private float[] mTempCellLayoutCenterCoordinates = new float[2]; 182bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private Matrix mTempInverseMatrix = new Matrix(); 183bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 184bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private SpringLoadedDragController mSpringLoadedDragController; 185bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private float mSpringLoadedShrinkFactor; 186bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private float mOverviewModeShrinkFactor; 187bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 188bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant // State variable that indicates whether the pages are small (ie when you're 189bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant // in all apps or customize mode) 190bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 191bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant enum State { NORMAL, SPRING_LOADED, SMALL, OVERVIEW}; 192bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private State mState = State.NORMAL; 193bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private boolean mIsSwitchingState = false; 194bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 195bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant boolean mAnimatingViewIntoPlace = false; 196bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant boolean mIsDragOccuring = false; 197bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant boolean mChildrenLayersEnabled = true; 198bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 199bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private boolean mStripScreensOnPageStopMoving = false; 200bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 201bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant /** Is the user is dragging an item near the edge of a page? */ 202bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private boolean mInScrollArea = false; 203bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 204bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private HolographicOutlineHelper mOutlineHelper; 205bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private Bitmap mDragOutline = null; 206bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private final Rect mTempRect = new Rect(); 207bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private final int[] mTempXY = new int[2]; 208bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private int[] mTempVisiblePagesRange = new int[2]; 209bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private boolean mOverscrollTransformsSet; 210bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private float mLastOverscrollPivotX; 211bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant public static final int DRAG_BITMAP_PADDING = 2; 212bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private boolean mWorkspaceFadeInAdjacentScreens; 213bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 214bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant WallpaperOffsetInterpolator mWallpaperOffset; 215bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private Runnable mDelayedResizeRunnable; 216bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private Runnable mDelayedSnapToPageRunnable; 217bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private Point mDisplaySize = new Point(); 218bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private int mCameraDistance; 219bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 220bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant // Variables relating to the creation of user folders by hovering shortcuts over shortcuts 221bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private static final int FOLDER_CREATION_TIMEOUT = 0; 222bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private static final int REORDER_TIMEOUT = 250; 223bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private final Alarm mFolderCreationAlarm = new Alarm(); 224bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private final Alarm mReorderAlarm = new Alarm(); 225bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private FolderRingAnimator mDragFolderRingAnimator = null; 226bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private FolderIcon mDragOverFolderIcon = null; 227bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private boolean mCreateUserFolderOnDrop = false; 228bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private boolean mAddToExistingFolderOnDrop = false; 229bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant private DropTarget.DragEnforcer mDragEnforcer; 2300e20cae1a5be18fba591cd884aa2a389b66a3f49Howard Hinnant private float mMaxDistanceForFolderCreation; 231 232 // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget) 233 private float mXDown; 234 private float mYDown; 235 final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6; 236 final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3; 237 final static float TOUCH_SLOP_DAMPING_FACTOR = 4; 238 239 // Relating to the animation of items being dropped externally 240 public static final int ANIMATE_INTO_POSITION_AND_DISAPPEAR = 0; 241 public static final int ANIMATE_INTO_POSITION_AND_REMAIN = 1; 242 public static final int ANIMATE_INTO_POSITION_AND_RESIZE = 2; 243 public static final int COMPLETE_TWO_STAGE_WIDGET_DROP_ANIMATION = 3; 244 public static final int CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION = 4; 245 246 // Related to dragging, folder creation and reordering 247 private static final int DRAG_MODE_NONE = 0; 248 private static final int DRAG_MODE_CREATE_FOLDER = 1; 249 private static final int DRAG_MODE_ADD_TO_FOLDER = 2; 250 private static final int DRAG_MODE_REORDER = 3; 251 private int mDragMode = DRAG_MODE_NONE; 252 private int mLastReorderX = -1; 253 private int mLastReorderY = -1; 254 255 private SparseArray<Parcelable> mSavedStates; 256 private final ArrayList<Integer> mRestoredPages = new ArrayList<Integer>(); 257 258 // These variables are used for storing the initial and final values during workspace animations 259 private int mSavedScrollX; 260 private float mSavedRotationY; 261 private float mSavedTranslationX; 262 263 private float mCurrentScale; 264 private float mNewScale; 265 private float[] mOldBackgroundAlphas; 266 private float[] mOldAlphas; 267 private float[] mNewBackgroundAlphas; 268 private float[] mNewAlphas; 269 private int mLastChildCount = -1; 270 private float mTransitionProgress; 271 272 private Runnable mDeferredAction; 273 private boolean mDeferDropAfterUninstall; 274 private boolean mUninstallSuccessful; 275 276 private final Runnable mBindPages = new Runnable() { 277 @Override 278 public void run() { 279 mLauncher.getModel().bindRemainingSynchronousPages(); 280 } 281 }; 282 283 /** 284 * Used to inflate the Workspace from XML. 285 * 286 * @param context The application's context. 287 * @param attrs The attributes set containing the Workspace's customization values. 288 */ 289 public Workspace(Context context, AttributeSet attrs) { 290 this(context, attrs, 0); 291 } 292 293 /** 294 * Used to inflate the Workspace from XML. 295 * 296 * @param context The application's context. 297 * @param attrs The attributes set containing the Workspace's customization values. 298 * @param defStyle Unused. 299 */ 300 public Workspace(Context context, AttributeSet attrs, int defStyle) { 301 super(context, attrs, defStyle); 302 mContentIsRefreshable = false; 303 304 mOutlineHelper = HolographicOutlineHelper.obtain(context); 305 306 mDragEnforcer = new DropTarget.DragEnforcer(context); 307 // With workspace, data is available straight from the get-go 308 setDataIsReady(); 309 310 mLauncher = (Launcher) context; 311 final Resources res = getResources(); 312 mWorkspaceFadeInAdjacentScreens = LauncherAppState.getInstance().getDynamicGrid(). 313 getDeviceProfile().shouldFadeAdjacentWorkspaceScreens(); 314 mFadeInAdjacentScreens = false; 315 mWallpaperManager = WallpaperManager.getInstance(context); 316 317 LauncherAppState app = LauncherAppState.getInstance(); 318 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 319 TypedArray a = context.obtainStyledAttributes(attrs, 320 R.styleable.Workspace, defStyle, 0); 321 mSpringLoadedShrinkFactor = 322 res.getInteger(R.integer.config_workspaceSpringLoadShrinkPercentage) / 100.0f; 323 mOverviewModeShrinkFactor = grid.getOverviewModeScale(); 324 mCameraDistance = res.getInteger(R.integer.config_cameraDistance); 325 mOriginalDefaultPage = mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1); 326 a.recycle(); 327 328 setOnHierarchyChangeListener(this); 329 setHapticFeedbackEnabled(false); 330 331 initWorkspace(); 332 333 // Disable multitouch across the workspace/all apps/customize tray 334 setMotionEventSplittingEnabled(true); 335 setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 336 } 337 338 @Override 339 public void setInsets(Rect insets) { 340 mInsets.set(insets); 341 } 342 343 // estimate the size of a widget with spans hSpan, vSpan. return MAX_VALUE for each 344 // dimension if unsuccessful 345 public int[] estimateItemSize(int hSpan, int vSpan, 346 ItemInfo itemInfo, boolean springLoaded) { 347 int[] size = new int[2]; 348 if (getChildCount() > 0) { 349 // Use the first non-custom page to estimate the child position 350 CellLayout cl = (CellLayout) getChildAt(numCustomPages()); 351 Rect r = estimateItemPosition(cl, itemInfo, 0, 0, hSpan, vSpan); 352 size[0] = r.width(); 353 size[1] = r.height(); 354 if (springLoaded) { 355 size[0] *= mSpringLoadedShrinkFactor; 356 size[1] *= mSpringLoadedShrinkFactor; 357 } 358 return size; 359 } else { 360 size[0] = Integer.MAX_VALUE; 361 size[1] = Integer.MAX_VALUE; 362 return size; 363 } 364 } 365 366 public Rect estimateItemPosition(CellLayout cl, ItemInfo pendingInfo, 367 int hCell, int vCell, int hSpan, int vSpan) { 368 Rect r = new Rect(); 369 cl.cellToRect(hCell, vCell, hSpan, vSpan, r); 370 return r; 371 } 372 373 public void onDragStart(final DragSource source, Object info, int dragAction) { 374 mIsDragOccuring = true; 375 updateChildrenLayersEnabled(false); 376 mLauncher.lockScreenOrientation(); 377 mLauncher.onInteractionBegin(); 378 setChildrenBackgroundAlphaMultipliers(1f); 379 // Prevent any Un/InstallShortcutReceivers from updating the db while we are dragging 380 InstallShortcutReceiver.enableInstallQueue(); 381 UninstallShortcutReceiver.enableUninstallQueue(); 382 post(new Runnable() { 383 @Override 384 public void run() { 385 if (mIsDragOccuring) { 386 addExtraEmptyScreenOnDrag(); 387 } 388 } 389 }); 390 } 391 392 public void onDragEnd() { 393 mIsDragOccuring = false; 394 updateChildrenLayersEnabled(false); 395 mLauncher.unlockScreenOrientation(false); 396 397 // Re-enable any Un/InstallShortcutReceiver and now process any queued items 398 InstallShortcutReceiver.disableAndFlushInstallQueue(getContext()); 399 UninstallShortcutReceiver.disableAndFlushUninstallQueue(getContext()); 400 401 mDragSourceInternal = null; 402 mLauncher.onInteractionEnd(); 403 } 404 405 /** 406 * Initializes various states for this workspace. 407 */ 408 protected void initWorkspace() { 409 Context context = getContext(); 410 mCurrentPage = mDefaultPage; 411 Launcher.setScreen(mCurrentPage); 412 LauncherAppState app = LauncherAppState.getInstance(); 413 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 414 mIconCache = app.getIconCache(); 415 setWillNotDraw(false); 416 setClipChildren(false); 417 setClipToPadding(false); 418 setChildrenDrawnWithCacheEnabled(true); 419 420 setMinScale(mOverviewModeShrinkFactor); 421 setupLayoutTransition(); 422 423 final Resources res = getResources(); 424 try { 425 mBackground = res.getDrawable(R.drawable.apps_customize_bg); 426 } catch (Resources.NotFoundException e) { 427 // In this case, we will skip drawing background protection 428 } 429 430 mWallpaperOffset = new WallpaperOffsetInterpolator(); 431 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 432 display.getSize(mDisplaySize); 433 434 mMaxDistanceForFolderCreation = (0.55f * grid.iconSizePx); 435 mFlingThresholdVelocity = (int) (FLING_THRESHOLD_VELOCITY * mDensity); 436 } 437 438 private void setupLayoutTransition() { 439 // We want to show layout transitions when pages are deleted, to close the gap. 440 mLayoutTransition = new LayoutTransition(); 441 mLayoutTransition.enableTransitionType(LayoutTransition.DISAPPEARING); 442 mLayoutTransition.enableTransitionType(LayoutTransition.CHANGE_DISAPPEARING); 443 mLayoutTransition.disableTransitionType(LayoutTransition.APPEARING); 444 mLayoutTransition.disableTransitionType(LayoutTransition.CHANGE_APPEARING); 445 setLayoutTransition(mLayoutTransition); 446 } 447 448 void enableLayoutTransitions() { 449 setLayoutTransition(mLayoutTransition); 450 } 451 void disableLayoutTransitions() { 452 setLayoutTransition(null); 453 } 454 455 @Override 456 protected int getScrollMode() { 457 return SmoothPagedView.X_LARGE_MODE; 458 } 459 460 @Override 461 public void onChildViewAdded(View parent, View child) { 462 if (!(child instanceof CellLayout)) { 463 throw new IllegalArgumentException("A Workspace can only have CellLayout children."); 464 } 465 CellLayout cl = ((CellLayout) child); 466 cl.setOnInterceptTouchListener(this); 467 cl.setClickable(true); 468 cl.setImportantForAccessibility(ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_NO); 469 super.onChildViewAdded(parent, child); 470 } 471 472 protected boolean shouldDrawChild(View child) { 473 final CellLayout cl = (CellLayout) child; 474 return super.shouldDrawChild(child) && 475 (mIsSwitchingState || 476 cl.getShortcutsAndWidgets().getAlpha() > 0 || 477 cl.getBackgroundAlpha() > 0); 478 } 479 480 /** 481 * @return The open folder on the current screen, or null if there is none 482 */ 483 Folder getOpenFolder() { 484 DragLayer dragLayer = mLauncher.getDragLayer(); 485 int count = dragLayer.getChildCount(); 486 for (int i = 0; i < count; i++) { 487 View child = dragLayer.getChildAt(i); 488 if (child instanceof Folder) { 489 Folder folder = (Folder) child; 490 if (folder.getInfo().opened) 491 return folder; 492 } 493 } 494 return null; 495 } 496 497 boolean isTouchActive() { 498 return mTouchState != TOUCH_STATE_REST; 499 } 500 501 public void removeAllWorkspaceScreens() { 502 // Disable all layout transitions before removing all pages to ensure that we don't get the 503 // transition animations competing with us changing the scroll when we add pages or the 504 // custom content screen 505 disableLayoutTransitions(); 506 507 // Since we increment the current page when we call addCustomContentPage via bindScreens 508 // (and other places), we need to adjust the current page back when we clear the pages 509 if (hasCustomContent()) { 510 removeCustomContentPage(); 511 } 512 513 // Remove the pages and clear the screen models 514 removeAllViews(); 515 mScreenOrder.clear(); 516 mWorkspaceScreens.clear(); 517 518 // Re-enable the layout transitions 519 enableLayoutTransitions(); 520 } 521 522 public long insertNewWorkspaceScreenBeforeEmptyScreen(long screenId) { 523 // Find the index to insert this view into. If the empty screen exists, then 524 // insert it before that. 525 int insertIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 526 if (insertIndex < 0) { 527 insertIndex = mScreenOrder.size(); 528 } 529 return insertNewWorkspaceScreen(screenId, insertIndex); 530 } 531 532 public long insertNewWorkspaceScreen(long screenId) { 533 return insertNewWorkspaceScreen(screenId, getChildCount()); 534 } 535 536 public long insertNewWorkspaceScreen(long screenId, int insertIndex) { 537 if (mWorkspaceScreens.containsKey(screenId)) { 538 throw new RuntimeException("Screen id " + screenId + " already exists!"); 539 } 540 541 CellLayout newScreen = (CellLayout) 542 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 543 544 newScreen.setOnLongClickListener(mLongClickListener); 545 newScreen.setOnClickListener(mLauncher); 546 newScreen.setSoundEffectsEnabled(false); 547 mWorkspaceScreens.put(screenId, newScreen); 548 mScreenOrder.add(insertIndex, screenId); 549 addView(newScreen, insertIndex); 550 return screenId; 551 } 552 553 public void createCustomContentPage() { 554 CellLayout customScreen = (CellLayout) 555 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 556 557 mWorkspaceScreens.put(CUSTOM_CONTENT_SCREEN_ID, customScreen); 558 mScreenOrder.add(0, CUSTOM_CONTENT_SCREEN_ID); 559 560 // We want no padding on the custom content 561 customScreen.setPadding(0, 0, 0, 0); 562 563 addFullScreenPage(customScreen); 564 565 // Ensure that the current page and default page are maintained. 566 mDefaultPage = mOriginalDefaultPage + 1; 567 568 // Update the custom content hint 569 mLauncher.updateCustomContentHintVisibility(); 570 if (mRestorePage != INVALID_RESTORE_PAGE) { 571 mRestorePage = mRestorePage + 1; 572 } else { 573 setCurrentPage(getCurrentPage() + 1); 574 } 575 } 576 577 public void removeCustomContentPage() { 578 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 579 if (customScreen == null) { 580 throw new RuntimeException("Expected custom content screen to exist"); 581 } 582 583 mWorkspaceScreens.remove(CUSTOM_CONTENT_SCREEN_ID); 584 mScreenOrder.remove(CUSTOM_CONTENT_SCREEN_ID); 585 removeView(customScreen); 586 587 if (mCustomContentCallbacks != null) { 588 mCustomContentCallbacks.onScrollProgressChanged(0); 589 mCustomContentCallbacks.onHide(); 590 } 591 592 mCustomContentCallbacks = null; 593 594 // Ensure that the current page and default page are maintained. 595 mDefaultPage = mOriginalDefaultPage - 1; 596 597 // Update the custom content hint 598 mLauncher.updateCustomContentHintVisibility(); 599 if (mRestorePage != INVALID_RESTORE_PAGE) { 600 mRestorePage = mRestorePage - 1; 601 } else { 602 setCurrentPage(getCurrentPage() - 1); 603 } 604 } 605 606 public void addToCustomContentPage(View customContent, CustomContentCallbacks callbacks, 607 String description) { 608 if (getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID) < 0) { 609 throw new RuntimeException("Expected custom content screen to exist"); 610 } 611 612 // Add the custom content to the full screen custom page 613 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 614 int spanX = customScreen.getCountX(); 615 int spanY = customScreen.getCountY(); 616 CellLayout.LayoutParams lp = new CellLayout.LayoutParams(0, 0, spanX, spanY); 617 lp.canReorder = false; 618 lp.isFullscreen = true; 619 if (customContent instanceof Insettable) { 620 ((Insettable)customContent).setInsets(mInsets); 621 } 622 customScreen.removeAllViews(); 623 customScreen.addViewToCellLayout(customContent, 0, 0, lp, true); 624 mCustomContentDescription = description; 625 626 mCustomContentCallbacks = callbacks; 627 } 628 629 public void addExtraEmptyScreenOnDrag() { 630 boolean lastChildOnScreen = false; 631 boolean childOnFinalScreen = false; 632 633 // Cancel any pending removal of empty screen 634 mRemoveEmptyScreenRunnable = null; 635 636 if (mDragSourceInternal != null) { 637 if (mDragSourceInternal.getChildCount() == 1) { 638 lastChildOnScreen = true; 639 } 640 CellLayout cl = (CellLayout) mDragSourceInternal.getParent(); 641 if (indexOfChild(cl) == getChildCount() - 1) { 642 childOnFinalScreen = true; 643 } 644 } 645 646 // If this is the last item on the final screen 647 if (lastChildOnScreen && childOnFinalScreen) { 648 return; 649 } 650 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 651 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 652 } 653 } 654 655 public boolean addExtraEmptyScreen() { 656 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 657 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 658 return true; 659 } 660 return false; 661 } 662 663 private void convertFinalScreenToEmptyScreenIfNecessary() { 664 if (hasExtraEmptyScreen() || mScreenOrder.size() == 0) return; 665 long finalScreenId = mScreenOrder.get(mScreenOrder.size() - 1); 666 667 if (finalScreenId == CUSTOM_CONTENT_SCREEN_ID) return; 668 CellLayout finalScreen = mWorkspaceScreens.get(finalScreenId); 669 670 // If the final screen is empty, convert it to the extra empty screen 671 if (finalScreen.getShortcutsAndWidgets().getChildCount() == 0 && 672 !finalScreen.isDropPending()) { 673 mWorkspaceScreens.remove(finalScreenId); 674 mScreenOrder.remove(finalScreenId); 675 676 // if this is the last non-custom content screen, convert it to the empty screen 677 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, finalScreen); 678 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 679 } 680 } 681 682 public void removeExtraEmptyScreen(final boolean animate, final Runnable onComplete) { 683 removeExtraEmptyScreen(animate, onComplete, 0, false); 684 } 685 686 public void removeExtraEmptyScreen(final boolean animate, final Runnable onComplete, 687 final int delay, final boolean stripEmptyScreens) { 688 if (delay > 0) { 689 postDelayed(new Runnable() { 690 @Override 691 public void run() { 692 removeExtraEmptyScreen(animate, onComplete, 0, stripEmptyScreens); 693 } 694 695 }, delay); 696 return; 697 } 698 699 convertFinalScreenToEmptyScreenIfNecessary(); 700 if (hasExtraEmptyScreen()) { 701 int emptyIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 702 if (getNextPage() == emptyIndex) { 703 snapToPage(getNextPage() - 1, SNAP_OFF_EMPTY_SCREEN_DURATION); 704 fadeAndRemoveEmptyScreen(SNAP_OFF_EMPTY_SCREEN_DURATION, FADE_EMPTY_SCREEN_DURATION, 705 onComplete, stripEmptyScreens); 706 } else { 707 fadeAndRemoveEmptyScreen(0, FADE_EMPTY_SCREEN_DURATION, 708 onComplete, stripEmptyScreens); 709 } 710 return; 711 } 712 if (onComplete != null) { 713 onComplete.run(); 714 } 715 } 716 717 private void fadeAndRemoveEmptyScreen(int delay, int duration, final Runnable onComplete, 718 final boolean stripEmptyScreens) { 719 PropertyValuesHolder alpha = PropertyValuesHolder.ofFloat("alpha", 0f); 720 PropertyValuesHolder bgAlpha = PropertyValuesHolder.ofFloat("backgroundAlpha", 0f); 721 722 final CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 723 724 mRemoveEmptyScreenRunnable = new Runnable() { 725 @Override 726 public void run() { 727 if (hasExtraEmptyScreen()) { 728 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 729 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 730 removeView(cl); 731 if (stripEmptyScreens) { 732 stripEmptyScreens(); 733 } 734 } 735 } 736 }; 737 738 ObjectAnimator oa = ObjectAnimator.ofPropertyValuesHolder(cl, alpha, bgAlpha); 739 oa.setDuration(duration); 740 oa.setStartDelay(delay); 741 oa.addListener(new AnimatorListenerAdapter() { 742 @Override 743 public void onAnimationEnd(Animator animation) { 744 if (mRemoveEmptyScreenRunnable != null) { 745 mRemoveEmptyScreenRunnable.run(); 746 } 747 if (onComplete != null) { 748 onComplete.run(); 749 } 750 } 751 }); 752 oa.start(); 753 } 754 755 public boolean hasExtraEmptyScreen() { 756 int nScreens = getChildCount(); 757 nScreens = nScreens - numCustomPages(); 758 return mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID) && nScreens > 1; 759 } 760 761 public long commitExtraEmptyScreen() { 762 int index = getPageIndexForScreenId(EXTRA_EMPTY_SCREEN_ID); 763 CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 764 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 765 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 766 767 long newId = LauncherAppState.getLauncherProvider().generateNewScreenId(); 768 mWorkspaceScreens.put(newId, cl); 769 mScreenOrder.add(newId); 770 771 // Update the page indicator marker 772 if (getPageIndicator() != null) { 773 getPageIndicator().updateMarker(index, getPageIndicatorMarker(index)); 774 } 775 776 // Update the model for the new screen 777 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 778 779 return newId; 780 } 781 782 public CellLayout getScreenWithId(long screenId) { 783 CellLayout layout = mWorkspaceScreens.get(screenId); 784 return layout; 785 } 786 787 public long getIdForScreen(CellLayout layout) { 788 Iterator<Long> iter = mWorkspaceScreens.keySet().iterator(); 789 while (iter.hasNext()) { 790 long id = iter.next(); 791 if (mWorkspaceScreens.get(id) == layout) { 792 return id; 793 } 794 } 795 return -1; 796 } 797 798 public int getPageIndexForScreenId(long screenId) { 799 return indexOfChild(mWorkspaceScreens.get(screenId)); 800 } 801 802 public long getScreenIdForPageIndex(int index) { 803 if (0 <= index && index < mScreenOrder.size()) { 804 return mScreenOrder.get(index); 805 } 806 return -1; 807 } 808 809 ArrayList<Long> getScreenOrder() { 810 return mScreenOrder; 811 } 812 813 public void stripEmptyScreens() { 814 if (isPageMoving()) { 815 mStripScreensOnPageStopMoving = true; 816 return; 817 } 818 819 int currentPage = getNextPage(); 820 ArrayList<Long> removeScreens = new ArrayList<Long>(); 821 for (Long id: mWorkspaceScreens.keySet()) { 822 CellLayout cl = mWorkspaceScreens.get(id); 823 if (id >= 0 && cl.getShortcutsAndWidgets().getChildCount() == 0) { 824 removeScreens.add(id); 825 } 826 } 827 828 // We enforce at least one page to add new items to. In the case that we remove the last 829 // such screen, we convert the last screen to the empty screen 830 int minScreens = 1 + numCustomPages(); 831 832 int pageShift = 0; 833 for (Long id: removeScreens) { 834 CellLayout cl = mWorkspaceScreens.get(id); 835 mWorkspaceScreens.remove(id); 836 mScreenOrder.remove(id); 837 838 if (getChildCount() > minScreens) { 839 if (indexOfChild(cl) < currentPage) { 840 pageShift++; 841 } 842 removeView(cl); 843 } else { 844 // if this is the last non-custom content screen, convert it to the empty screen 845 mRemoveEmptyScreenRunnable = null; 846 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, cl); 847 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 848 } 849 } 850 851 if (!removeScreens.isEmpty()) { 852 // Update the model if we have changed any screens 853 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 854 } 855 856 if (pageShift >= 0) { 857 setCurrentPage(currentPage - pageShift); 858 } 859 } 860 861 // See implementation for parameter definition. 862 void addInScreen(View child, long container, long screenId, 863 int x, int y, int spanX, int spanY) { 864 addInScreen(child, container, screenId, x, y, spanX, spanY, false, false); 865 } 866 867 // At bind time, we use the rank (screenId) to compute x and y for hotseat items. 868 // See implementation for parameter definition. 869 void addInScreenFromBind(View child, long container, long screenId, int x, int y, 870 int spanX, int spanY) { 871 addInScreen(child, container, screenId, x, y, spanX, spanY, false, true); 872 } 873 874 // See implementation for parameter definition. 875 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 876 boolean insert) { 877 addInScreen(child, container, screenId, x, y, spanX, spanY, insert, false); 878 } 879 880 /** 881 * Adds the specified child in the specified screen. The position and dimension of 882 * the child are defined by x, y, spanX and spanY. 883 * 884 * @param child The child to add in one of the workspace's screens. 885 * @param screenId The screen in which to add the child. 886 * @param x The X position of the child in the screen's grid. 887 * @param y The Y position of the child in the screen's grid. 888 * @param spanX The number of cells spanned horizontally by the child. 889 * @param spanY The number of cells spanned vertically by the child. 890 * @param insert When true, the child is inserted at the beginning of the children list. 891 * @param computeXYFromRank When true, we use the rank (stored in screenId) to compute 892 * the x and y position in which to place hotseat items. Otherwise 893 * we use the x and y position to compute the rank. 894 */ 895 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 896 boolean insert, boolean computeXYFromRank) { 897 if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 898 if (getScreenWithId(screenId) == null) { 899 Log.e(TAG, "Skipping child, screenId " + screenId + " not found"); 900 // DEBUGGING - Print out the stack trace to see where we are adding from 901 new Throwable().printStackTrace(); 902 return; 903 } 904 } 905 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 906 // This should never happen 907 throw new RuntimeException("Screen id should not be EXTRA_EMPTY_SCREEN_ID"); 908 } 909 910 final CellLayout layout; 911 if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 912 layout = mLauncher.getHotseat().getLayout(); 913 child.setOnKeyListener(null); 914 915 // Hide folder title in the hotseat 916 if (child instanceof FolderIcon) { 917 ((FolderIcon) child).setTextVisible(false); 918 } 919 920 if (computeXYFromRank) { 921 x = mLauncher.getHotseat().getCellXFromOrder((int) screenId); 922 y = mLauncher.getHotseat().getCellYFromOrder((int) screenId); 923 } else { 924 screenId = mLauncher.getHotseat().getOrderInHotseat(x, y); 925 } 926 } else { 927 // Show folder title if not in the hotseat 928 if (child instanceof FolderIcon) { 929 ((FolderIcon) child).setTextVisible(true); 930 } 931 layout = getScreenWithId(screenId); 932 child.setOnKeyListener(new IconKeyEventListener()); 933 } 934 935 ViewGroup.LayoutParams genericLp = child.getLayoutParams(); 936 CellLayout.LayoutParams lp; 937 if (genericLp == null || !(genericLp instanceof CellLayout.LayoutParams)) { 938 lp = new CellLayout.LayoutParams(x, y, spanX, spanY); 939 } else { 940 lp = (CellLayout.LayoutParams) genericLp; 941 lp.cellX = x; 942 lp.cellY = y; 943 lp.cellHSpan = spanX; 944 lp.cellVSpan = spanY; 945 } 946 947 if (spanX < 0 && spanY < 0) { 948 lp.isLockedToGrid = false; 949 } 950 951 // Get the canonical child id to uniquely represent this view in this screen 952 ItemInfo info = (ItemInfo) child.getTag(); 953 int childId = mLauncher.getViewIdForItem(info); 954 955 boolean markCellsAsOccupied = !(child instanceof Folder); 956 if (!layout.addViewToCellLayout(child, insert ? 0 : -1, childId, lp, markCellsAsOccupied)) { 957 // TODO: This branch occurs when the workspace is adding views 958 // outside of the defined grid 959 // maybe we should be deleting these items from the LauncherModel? 960 Launcher.addDumpLog(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout", true); 961 } 962 963 if (!(child instanceof Folder)) { 964 child.setHapticFeedbackEnabled(false); 965 child.setOnLongClickListener(mLongClickListener); 966 } 967 if (child instanceof DropTarget) { 968 mDragController.addDropTarget((DropTarget) child); 969 } 970 } 971 972 /** 973 * Called directly from a CellLayout (not by the framework), after we've been added as a 974 * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout 975 * that it should intercept touch events, which is not something that is normally supported. 976 */ 977 @Override 978 public boolean onTouch(View v, MotionEvent event) { 979 return (isSmall() || !isFinishedSwitchingState()) 980 || (!isSmall() && indexOfChild(v) != mCurrentPage); 981 } 982 983 public boolean isSwitchingState() { 984 return mIsSwitchingState; 985 } 986 987 /** This differs from isSwitchingState in that we take into account how far the transition 988 * has completed. */ 989 public boolean isFinishedSwitchingState() { 990 return !mIsSwitchingState || (mTransitionProgress > 0.5f); 991 } 992 993 protected void onWindowVisibilityChanged (int visibility) { 994 mLauncher.onWindowVisibilityChanged(visibility); 995 } 996 997 @Override 998 public boolean dispatchUnhandledMove(View focused, int direction) { 999 if (isSmall() || !isFinishedSwitchingState()) { 1000 // when the home screens are shrunken, shouldn't allow side-scrolling 1001 return false; 1002 } 1003 return super.dispatchUnhandledMove(focused, direction); 1004 } 1005 1006 @Override 1007 public boolean onInterceptTouchEvent(MotionEvent ev) { 1008 switch (ev.getAction() & MotionEvent.ACTION_MASK) { 1009 case MotionEvent.ACTION_DOWN: 1010 mXDown = ev.getX(); 1011 mYDown = ev.getY(); 1012 mTouchDownTime = System.currentTimeMillis(); 1013 break; 1014 case MotionEvent.ACTION_POINTER_UP: 1015 case MotionEvent.ACTION_UP: 1016 if (mTouchState == TOUCH_STATE_REST) { 1017 final CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage); 1018 if (!currentPage.lastDownOnOccupiedCell()) { 1019 onWallpaperTap(ev); 1020 } 1021 } 1022 } 1023 return super.onInterceptTouchEvent(ev); 1024 } 1025 1026 protected void reinflateWidgetsIfNecessary() { 1027 final int clCount = getChildCount(); 1028 for (int i = 0; i < clCount; i++) { 1029 CellLayout cl = (CellLayout) getChildAt(i); 1030 ShortcutAndWidgetContainer swc = cl.getShortcutsAndWidgets(); 1031 final int itemCount = swc.getChildCount(); 1032 for (int j = 0; j < itemCount; j++) { 1033 View v = swc.getChildAt(j); 1034 1035 if (v.getTag() instanceof LauncherAppWidgetInfo) { 1036 LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) v.getTag(); 1037 LauncherAppWidgetHostView lahv = (LauncherAppWidgetHostView) info.hostView; 1038 if (lahv != null && lahv.orientationChangedSincedInflation()) { 1039 mLauncher.removeAppWidget(info); 1040 // Remove the current widget which is inflated with the wrong orientation 1041 cl.removeView(lahv); 1042 mLauncher.bindAppWidget(info); 1043 } 1044 } 1045 } 1046 } 1047 } 1048 1049 @Override 1050 protected void determineScrollingStart(MotionEvent ev) { 1051 if (!isFinishedSwitchingState()) return; 1052 1053 float deltaX = ev.getX() - mXDown; 1054 float absDeltaX = Math.abs(deltaX); 1055 float absDeltaY = Math.abs(ev.getY() - mYDown); 1056 1057 if (Float.compare(absDeltaX, 0f) == 0) return; 1058 1059 float slope = absDeltaY / absDeltaX; 1060 float theta = (float) Math.atan(slope); 1061 1062 if (absDeltaX > mTouchSlop || absDeltaY > mTouchSlop) { 1063 cancelCurrentPageLongPress(); 1064 } 1065 1066 boolean passRightSwipesToCustomContent = 1067 (mTouchDownTime - mCustomContentShowTime) > CUSTOM_CONTENT_GESTURE_DELAY; 1068 1069 boolean swipeInIgnoreDirection = isLayoutRtl() ? deltaX < 0 : deltaX > 0; 1070 if (swipeInIgnoreDirection && getScreenIdForPageIndex(getCurrentPage()) == 1071 CUSTOM_CONTENT_SCREEN_ID && passRightSwipesToCustomContent) { 1072 // Pass swipes to the right to the custom content page. 1073 return; 1074 } 1075 1076 if (theta > MAX_SWIPE_ANGLE) { 1077 // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace 1078 return; 1079 } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) { 1080 // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to 1081 // increase the touch slop to make it harder to begin scrolling the workspace. This 1082 // results in vertically scrolling widgets to more easily. The higher the angle, the 1083 // more we increase touch slop. 1084 theta -= START_DAMPING_TOUCH_SLOP_ANGLE; 1085 float extraRatio = (float) 1086 Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE))); 1087 super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio); 1088 } else { 1089 // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special 1090 super.determineScrollingStart(ev); 1091 } 1092 } 1093 1094 protected void onPageBeginMoving() { 1095 super.onPageBeginMoving(); 1096 1097 if (isHardwareAccelerated()) { 1098 updateChildrenLayersEnabled(false); 1099 } else { 1100 if (mNextPage != INVALID_PAGE) { 1101 // we're snapping to a particular screen 1102 enableChildrenCache(mCurrentPage, mNextPage); 1103 } else { 1104 // this is when user is actively dragging a particular screen, they might 1105 // swipe it either left or right (but we won't advance by more than one screen) 1106 enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1); 1107 } 1108 } 1109 1110 // Only show page outlines as we pan if we are on large screen 1111 if (LauncherAppState.getInstance().isScreenLarge()) { 1112 showOutlines(); 1113 } 1114 1115 // If we are not fading in adjacent screens, we still need to restore the alpha in case the 1116 // user scrolls while we are transitioning (should not affect dispatchDraw optimizations) 1117 if (!mWorkspaceFadeInAdjacentScreens) { 1118 for (int i = 0; i < getChildCount(); ++i) { 1119 ((CellLayout) getPageAt(i)).setShortcutAndWidgetAlpha(1f); 1120 } 1121 } 1122 } 1123 1124 protected void onPageEndMoving() { 1125 super.onPageEndMoving(); 1126 1127 if (isHardwareAccelerated()) { 1128 updateChildrenLayersEnabled(false); 1129 } else { 1130 clearChildrenCache(); 1131 } 1132 1133 if (mDragController.isDragging()) { 1134 if (isSmall()) { 1135 // If we are in springloaded mode, then force an event to check if the current touch 1136 // is under a new page (to scroll to) 1137 mDragController.forceTouchMove(); 1138 } 1139 } else { 1140 // If we are not mid-dragging, hide the page outlines if we are on a large screen 1141 if (LauncherAppState.getInstance().isScreenLarge()) { 1142 hideOutlines(); 1143 } 1144 } 1145 1146 if (mDelayedResizeRunnable != null) { 1147 mDelayedResizeRunnable.run(); 1148 mDelayedResizeRunnable = null; 1149 } 1150 1151 if (mDelayedSnapToPageRunnable != null) { 1152 mDelayedSnapToPageRunnable.run(); 1153 mDelayedSnapToPageRunnable = null; 1154 } 1155 if (mStripScreensOnPageStopMoving) { 1156 stripEmptyScreens(); 1157 mStripScreensOnPageStopMoving = false; 1158 } 1159 } 1160 1161 @Override 1162 protected void notifyPageSwitchListener() { 1163 super.notifyPageSwitchListener(); 1164 Launcher.setScreen(mCurrentPage); 1165 1166 if (hasCustomContent() && getNextPage() == 0 && !mCustomContentShowing) { 1167 mCustomContentShowing = true; 1168 if (mCustomContentCallbacks != null) { 1169 mCustomContentCallbacks.onShow(); 1170 mCustomContentShowTime = System.currentTimeMillis(); 1171 mLauncher.updateVoiceButtonProxyVisible(false); 1172 } 1173 } else if (hasCustomContent() && getNextPage() != 0 && mCustomContentShowing) { 1174 mCustomContentShowing = false; 1175 if (mCustomContentCallbacks != null) { 1176 mCustomContentCallbacks.onHide(); 1177 mLauncher.resetQSBScroll(); 1178 mLauncher.updateVoiceButtonProxyVisible(false); 1179 } 1180 } 1181 if (getPageIndicator() != null) { 1182 getPageIndicator().setContentDescription(getPageIndicatorDescription()); 1183 } 1184 } 1185 1186 protected CustomContentCallbacks getCustomContentCallbacks() { 1187 return mCustomContentCallbacks; 1188 } 1189 1190 protected void setWallpaperDimension() { 1191 String spKey = WallpaperCropActivity.getSharedPreferencesKey(); 1192 SharedPreferences sp = mLauncher.getSharedPreferences(spKey, Context.MODE_MULTI_PROCESS); 1193 WallpaperPickerActivity.suggestWallpaperDimension(mLauncher.getResources(), 1194 sp, mLauncher.getWindowManager(), mWallpaperManager); 1195 } 1196 1197 protected void snapToPage(int whichPage, Runnable r) { 1198 snapToPage(whichPage, SLOW_PAGE_SNAP_ANIMATION_DURATION, r); 1199 } 1200 1201 protected void snapToPage(int whichPage, int duration, Runnable r) { 1202 if (mDelayedSnapToPageRunnable != null) { 1203 mDelayedSnapToPageRunnable.run(); 1204 } 1205 mDelayedSnapToPageRunnable = r; 1206 snapToPage(whichPage, duration); 1207 } 1208 1209 protected void snapToScreenId(long screenId, Runnable r) { 1210 snapToPage(getPageIndexForScreenId(screenId), r); 1211 } 1212 1213 class WallpaperOffsetInterpolator implements Choreographer.FrameCallback { 1214 float mFinalOffset = 0.0f; 1215 float mCurrentOffset = 0.5f; // to force an initial update 1216 boolean mWaitingForUpdate; 1217 Choreographer mChoreographer; 1218 Interpolator mInterpolator; 1219 boolean mAnimating; 1220 long mAnimationStartTime; 1221 float mAnimationStartOffset; 1222 private final int ANIMATION_DURATION = 250; 1223 // Don't use all the wallpaper for parallax until you have at least this many pages 1224 private final int MIN_PARALLAX_PAGE_SPAN = 3; 1225 int mNumScreens; 1226 1227 public WallpaperOffsetInterpolator() { 1228 mChoreographer = Choreographer.getInstance(); 1229 mInterpolator = new DecelerateInterpolator(1.5f); 1230 } 1231 1232 @Override 1233 public void doFrame(long frameTimeNanos) { 1234 updateOffset(false); 1235 } 1236 1237 private void updateOffset(boolean force) { 1238 if (mWaitingForUpdate || force) { 1239 mWaitingForUpdate = false; 1240 if (computeScrollOffset() && mWindowToken != null) { 1241 try { 1242 mWallpaperManager.setWallpaperOffsets(mWindowToken, 1243 mWallpaperOffset.getCurrX(), 0.5f); 1244 setWallpaperOffsetSteps(); 1245 } catch (IllegalArgumentException e) { 1246 Log.e(TAG, "Error updating wallpaper offset: " + e); 1247 } 1248 } 1249 } 1250 } 1251 1252 public boolean computeScrollOffset() { 1253 final float oldOffset = mCurrentOffset; 1254 if (mAnimating) { 1255 long durationSinceAnimation = System.currentTimeMillis() - mAnimationStartTime; 1256 float t0 = durationSinceAnimation / (float) ANIMATION_DURATION; 1257 float t1 = mInterpolator.getInterpolation(t0); 1258 mCurrentOffset = mAnimationStartOffset + 1259 (mFinalOffset - mAnimationStartOffset) * t1; 1260 mAnimating = durationSinceAnimation < ANIMATION_DURATION; 1261 } else { 1262 mCurrentOffset = mFinalOffset; 1263 } 1264 1265 if (Math.abs(mCurrentOffset - mFinalOffset) > 0.0000001f) { 1266 scheduleUpdate(); 1267 } 1268 if (Math.abs(oldOffset - mCurrentOffset) > 0.0000001f) { 1269 return true; 1270 } 1271 return false; 1272 } 1273 1274 private float wallpaperOffsetForCurrentScroll() { 1275 if (getChildCount() <= 1) { 1276 return 0; 1277 } 1278 1279 // Exclude the leftmost page 1280 int emptyExtraPages = numEmptyScreensToIgnore(); 1281 int firstIndex = numCustomPages(); 1282 // Exclude the last extra empty screen (if we have > MIN_PARALLAX_PAGE_SPAN pages) 1283 int lastIndex = getChildCount() - 1 - emptyExtraPages; 1284 if (isLayoutRtl()) { 1285 int temp = firstIndex; 1286 firstIndex = lastIndex; 1287 lastIndex = temp; 1288 } 1289 1290 int firstPageScrollX = getScrollForPage(firstIndex); 1291 int scrollRange = getScrollForPage(lastIndex) - firstPageScrollX; 1292 if (scrollRange == 0) { 1293 return 0; 1294 } else { 1295 // TODO: do different behavior if it's a live wallpaper? 1296 // Sometimes the left parameter of the pages is animated during a layout transition; 1297 // this parameter offsets it to keep the wallpaper from animating as well 1298 int adjustedScroll = 1299 getScrollX() - firstPageScrollX - getLayoutTransitionOffsetForPage(0); 1300 float offset = Math.min(1, adjustedScroll / (float) scrollRange); 1301 offset = Math.max(0, offset); 1302 // Don't use up all the wallpaper parallax until you have at least 1303 // MIN_PARALLAX_PAGE_SPAN pages 1304 int numScrollingPages = getNumScreensExcludingEmptyAndCustom(); 1305 int parallaxPageSpan = Math.max(MIN_PARALLAX_PAGE_SPAN, numScrollingPages - 1); 1306 // On RTL devices, push the wallpaper offset to the right if we don't have enough 1307 // pages (ie if numScrollingPages < MIN_PARALLAX_PAGE_SPAN) 1308 int padding = isLayoutRtl() ? parallaxPageSpan - numScrollingPages + 1 : 0; 1309 return offset * (padding + numScrollingPages - 1) / parallaxPageSpan; 1310 } 1311 } 1312 1313 private int numEmptyScreensToIgnore() { 1314 int numScrollingPages = getChildCount() - numCustomPages(); 1315 if (numScrollingPages >= MIN_PARALLAX_PAGE_SPAN && hasExtraEmptyScreen()) { 1316 return 1; 1317 } else { 1318 return 0; 1319 } 1320 } 1321 1322 private int getNumScreensExcludingEmptyAndCustom() { 1323 int numScrollingPages = getChildCount() - numEmptyScreensToIgnore() - numCustomPages(); 1324 return numScrollingPages; 1325 } 1326 1327 public void syncWithScroll() { 1328 float offset = wallpaperOffsetForCurrentScroll(); 1329 mWallpaperOffset.setFinalX(offset); 1330 updateOffset(true); 1331 } 1332 1333 public float getCurrX() { 1334 return mCurrentOffset; 1335 } 1336 1337 public float getFinalX() { 1338 return mFinalOffset; 1339 } 1340 1341 private void animateToFinal() { 1342 mAnimating = true; 1343 mAnimationStartOffset = mCurrentOffset; 1344 mAnimationStartTime = System.currentTimeMillis(); 1345 } 1346 1347 private void setWallpaperOffsetSteps() { 1348 // Set wallpaper offset steps (1 / (number of screens - 1)) 1349 mWallpaperManager.setWallpaperOffsetSteps(1.0f / (getChildCount() - 1), 1.0f); 1350 } 1351 1352 public void setFinalX(float x) { 1353 scheduleUpdate(); 1354 mFinalOffset = Math.max(0f, Math.min(x, 1.0f)); 1355 if (getNumScreensExcludingEmptyAndCustom() != mNumScreens) { 1356 if (mNumScreens > 0) { 1357 // Don't animate if we're going from 0 screens 1358 animateToFinal(); 1359 } 1360 mNumScreens = getNumScreensExcludingEmptyAndCustom(); 1361 } 1362 } 1363 1364 private void scheduleUpdate() { 1365 if (!mWaitingForUpdate) { 1366 mChoreographer.postFrameCallback(this); 1367 mWaitingForUpdate = true; 1368 } 1369 } 1370 1371 public void jumpToFinal() { 1372 mCurrentOffset = mFinalOffset; 1373 } 1374 } 1375 1376 @Override 1377 public void computeScroll() { 1378 super.computeScroll(); 1379 mWallpaperOffset.syncWithScroll(); 1380 } 1381 1382 void showOutlines() { 1383 if (!isSmall() && !mIsSwitchingState) { 1384 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1385 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1386 mChildrenOutlineFadeInAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 1.0f); 1387 mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION); 1388 mChildrenOutlineFadeInAnimation.start(); 1389 } 1390 } 1391 1392 void hideOutlines() { 1393 if (!isSmall() && !mIsSwitchingState) { 1394 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1395 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1396 mChildrenOutlineFadeOutAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 0.0f); 1397 mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION); 1398 mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY); 1399 mChildrenOutlineFadeOutAnimation.start(); 1400 } 1401 } 1402 1403 public void showOutlinesTemporarily() { 1404 if (!mIsPageMoving && !isTouchActive()) { 1405 snapToPage(mCurrentPage); 1406 } 1407 } 1408 1409 public void setChildrenOutlineAlpha(float alpha) { 1410 mChildrenOutlineAlpha = alpha; 1411 for (int i = 0; i < getChildCount(); i++) { 1412 CellLayout cl = (CellLayout) getChildAt(i); 1413 cl.setBackgroundAlpha(alpha); 1414 } 1415 } 1416 1417 public float getChildrenOutlineAlpha() { 1418 return mChildrenOutlineAlpha; 1419 } 1420 1421 void disableBackground() { 1422 mDrawBackground = false; 1423 } 1424 void enableBackground() { 1425 mDrawBackground = true; 1426 } 1427 1428 private void animateBackgroundGradient(float finalAlpha, boolean animated) { 1429 if (mBackground == null) return; 1430 if (mBackgroundFadeInAnimation != null) { 1431 mBackgroundFadeInAnimation.cancel(); 1432 mBackgroundFadeInAnimation = null; 1433 } 1434 if (mBackgroundFadeOutAnimation != null) { 1435 mBackgroundFadeOutAnimation.cancel(); 1436 mBackgroundFadeOutAnimation = null; 1437 } 1438 float startAlpha = getBackgroundAlpha(); 1439 if (finalAlpha != startAlpha) { 1440 if (animated) { 1441 mBackgroundFadeOutAnimation = 1442 LauncherAnimUtils.ofFloat(this, startAlpha, finalAlpha); 1443 mBackgroundFadeOutAnimation.addUpdateListener(new AnimatorUpdateListener() { 1444 public void onAnimationUpdate(ValueAnimator animation) { 1445 setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue()); 1446 } 1447 }); 1448 mBackgroundFadeOutAnimation.setInterpolator(new DecelerateInterpolator(1.5f)); 1449 mBackgroundFadeOutAnimation.setDuration(BACKGROUND_FADE_OUT_DURATION); 1450 mBackgroundFadeOutAnimation.start(); 1451 } else { 1452 setBackgroundAlpha(finalAlpha); 1453 } 1454 } 1455 } 1456 1457 public void setBackgroundAlpha(float alpha) { 1458 if (alpha != mBackgroundAlpha) { 1459 mBackgroundAlpha = alpha; 1460 invalidate(); 1461 } 1462 } 1463 1464 public float getBackgroundAlpha() { 1465 return mBackgroundAlpha; 1466 } 1467 1468 float backgroundAlphaInterpolator(float r) { 1469 float pivotA = 0.1f; 1470 float pivotB = 0.4f; 1471 if (r < pivotA) { 1472 return 0; 1473 } else if (r > pivotB) { 1474 return 1.0f; 1475 } else { 1476 return (r - pivotA)/(pivotB - pivotA); 1477 } 1478 } 1479 1480 private void updatePageAlphaValues(int screenCenter) { 1481 boolean isInOverscroll = mOverScrollX < 0 || mOverScrollX > mMaxScrollX; 1482 if (mWorkspaceFadeInAdjacentScreens && 1483 mState == State.NORMAL && 1484 !mIsSwitchingState && 1485 !isInOverscroll) { 1486 for (int i = numCustomPages(); i < getChildCount(); i++) { 1487 CellLayout child = (CellLayout) getChildAt(i); 1488 if (child != null) { 1489 float scrollProgress = getScrollProgress(screenCenter, child, i); 1490 float alpha = 1 - Math.abs(scrollProgress); 1491 child.getShortcutsAndWidgets().setAlpha(alpha); 1492 } 1493 } 1494 } 1495 } 1496 1497 private void setChildrenBackgroundAlphaMultipliers(float a) { 1498 for (int i = 0; i < getChildCount(); i++) { 1499 CellLayout child = (CellLayout) getChildAt(i); 1500 child.setBackgroundAlphaMultiplier(a); 1501 } 1502 } 1503 1504 public boolean hasCustomContent() { 1505 return (mScreenOrder.size() > 0 && mScreenOrder.get(0) == CUSTOM_CONTENT_SCREEN_ID); 1506 } 1507 1508 public int numCustomPages() { 1509 return hasCustomContent() ? 1 : 0; 1510 } 1511 1512 public boolean isOnOrMovingToCustomContent() { 1513 return hasCustomContent() && getNextPage() == 0; 1514 } 1515 1516 private void updateStateForCustomContent(int screenCenter) { 1517 float translationX = 0; 1518 float progress = 0; 1519 if (hasCustomContent()) { 1520 int index = mScreenOrder.indexOf(CUSTOM_CONTENT_SCREEN_ID); 1521 1522 int scrollDelta = getScrollX() - getScrollForPage(index) - 1523 getLayoutTransitionOffsetForPage(index); 1524 float scrollRange = getScrollForPage(index + 1) - getScrollForPage(index); 1525 translationX = scrollRange - scrollDelta; 1526 progress = (scrollRange - scrollDelta) / scrollRange; 1527 1528 if (isLayoutRtl()) { 1529 translationX = Math.min(0, translationX); 1530 } else { 1531 translationX = Math.max(0, translationX); 1532 } 1533 progress = Math.max(0, progress); 1534 } 1535 1536 if (Float.compare(progress, mLastCustomContentScrollProgress) == 0) return; 1537 1538 CellLayout cc = mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID); 1539 if (progress > 0 && cc.getVisibility() != VISIBLE && !isSmall()) { 1540 cc.setVisibility(VISIBLE); 1541 } 1542 1543 mLastCustomContentScrollProgress = progress; 1544 1545 setBackgroundAlpha(progress * 0.8f); 1546 1547 if (mLauncher.getHotseat() != null) { 1548 mLauncher.getHotseat().setTranslationX(translationX); 1549 } 1550 1551 if (getPageIndicator() != null) { 1552 getPageIndicator().setTranslationX(translationX); 1553 } 1554 1555 if (mCustomContentCallbacks != null) { 1556 mCustomContentCallbacks.onScrollProgressChanged(progress); 1557 } 1558 } 1559 1560 @Override 1561 protected OnClickListener getPageIndicatorClickListener() { 1562 AccessibilityManager am = (AccessibilityManager) 1563 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); 1564 if (!am.isTouchExplorationEnabled()) { 1565 return null; 1566 } 1567 OnClickListener listener = new OnClickListener() { 1568 @Override 1569 public void onClick(View arg0) { 1570 enterOverviewMode(); 1571 } 1572 }; 1573 return listener; 1574 } 1575 1576 @Override 1577 protected void screenScrolled(int screenCenter) { 1578 final boolean isRtl = isLayoutRtl(); 1579 super.screenScrolled(screenCenter); 1580 1581 updatePageAlphaValues(screenCenter); 1582 updateStateForCustomContent(screenCenter); 1583 enableHwLayersOnVisiblePages(); 1584 1585 boolean shouldOverScroll = (mOverScrollX < 0 && (!hasCustomContent() || isLayoutRtl())) || 1586 (mOverScrollX > mMaxScrollX && (!hasCustomContent() || !isLayoutRtl())); 1587 1588 if (shouldOverScroll) { 1589 int index = 0; 1590 float pivotX = 0f; 1591 final float leftBiasedPivot = 0.25f; 1592 final float rightBiasedPivot = 0.75f; 1593 final int lowerIndex = 0; 1594 final int upperIndex = getChildCount() - 1; 1595 1596 final boolean isLeftPage = mOverScrollX < 0; 1597 index = (!isRtl && isLeftPage) || (isRtl && !isLeftPage) ? lowerIndex : upperIndex; 1598 pivotX = isLeftPage ? rightBiasedPivot : leftBiasedPivot; 1599 1600 CellLayout cl = (CellLayout) getChildAt(index); 1601 float scrollProgress = getScrollProgress(screenCenter, cl, index); 1602 cl.setOverScrollAmount(Math.abs(scrollProgress), isLeftPage); 1603 float rotation = -WORKSPACE_OVERSCROLL_ROTATION * scrollProgress; 1604 cl.setRotationY(rotation); 1605 1606 if (!mOverscrollTransformsSet || Float.compare(mLastOverscrollPivotX, pivotX) != 0) { 1607 mOverscrollTransformsSet = true; 1608 mLastOverscrollPivotX = pivotX; 1609 cl.setCameraDistance(mDensity * mCameraDistance); 1610 cl.setPivotX(cl.getMeasuredWidth() * pivotX); 1611 cl.setPivotY(cl.getMeasuredHeight() * 0.5f); 1612 cl.setOverscrollTransformsDirty(true); 1613 } 1614 } else { 1615 if (mOverscrollTransformsSet) { 1616 mOverscrollTransformsSet = false; 1617 ((CellLayout) getChildAt(0)).resetOverscrollTransforms(); 1618 ((CellLayout) getChildAt(getChildCount() - 1)).resetOverscrollTransforms(); 1619 } 1620 } 1621 } 1622 1623 @Override 1624 protected void overScroll(float amount) { 1625 acceleratedOverScroll(amount); 1626 } 1627 1628 protected void onAttachedToWindow() { 1629 super.onAttachedToWindow(); 1630 mWindowToken = getWindowToken(); 1631 computeScroll(); 1632 mDragController.setWindowToken(mWindowToken); 1633 } 1634 1635 protected void onDetachedFromWindow() { 1636 super.onDetachedFromWindow(); 1637 mWindowToken = null; 1638 } 1639 1640 protected void onResume() { 1641 if (getPageIndicator() != null) { 1642 // In case accessibility state has changed, we need to perform this on every 1643 // attach to window 1644 OnClickListener listener = getPageIndicatorClickListener(); 1645 if (listener != null) { 1646 getPageIndicator().setOnClickListener(listener); 1647 } 1648 } 1649 AccessibilityManager am = (AccessibilityManager) 1650 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); 1651 sAccessibilityEnabled = am.isEnabled(); 1652 } 1653 1654 @Override 1655 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1656 if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) { 1657 mWallpaperOffset.syncWithScroll(); 1658 mWallpaperOffset.jumpToFinal(); 1659 } 1660 super.onLayout(changed, left, top, right, bottom); 1661 } 1662 1663 @Override 1664 protected void onDraw(Canvas canvas) { 1665 // Draw the background gradient if necessary 1666 if (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground) { 1667 int alpha = (int) (mBackgroundAlpha * 255); 1668 mBackground.setAlpha(alpha); 1669 mBackground.setBounds(getScrollX(), 0, getScrollX() + getMeasuredWidth(), 1670 getMeasuredHeight()); 1671 mBackground.draw(canvas); 1672 } 1673 1674 super.onDraw(canvas); 1675 1676 // Call back to LauncherModel to finish binding after the first draw 1677 post(mBindPages); 1678 } 1679 1680 boolean isDrawingBackgroundGradient() { 1681 return (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground); 1682 } 1683 1684 @Override 1685 protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { 1686 if (!mLauncher.isAllAppsVisible()) { 1687 final Folder openFolder = getOpenFolder(); 1688 if (openFolder != null) { 1689 return openFolder.requestFocus(direction, previouslyFocusedRect); 1690 } else { 1691 return super.onRequestFocusInDescendants(direction, previouslyFocusedRect); 1692 } 1693 } 1694 return false; 1695 } 1696 1697 @Override 1698 public int getDescendantFocusability() { 1699 if (isSmall()) { 1700 return ViewGroup.FOCUS_BLOCK_DESCENDANTS; 1701 } 1702 return super.getDescendantFocusability(); 1703 } 1704 1705 @Override 1706 public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 1707 if (!mLauncher.isAllAppsVisible()) { 1708 final Folder openFolder = getOpenFolder(); 1709 if (openFolder != null) { 1710 openFolder.addFocusables(views, direction); 1711 } else { 1712 super.addFocusables(views, direction, focusableMode); 1713 } 1714 } 1715 } 1716 1717 public boolean isSmall() { 1718 return mState == State.SMALL || mState == State.SPRING_LOADED || mState == State.OVERVIEW; 1719 } 1720 1721 void enableChildrenCache(int fromPage, int toPage) { 1722 if (fromPage > toPage) { 1723 final int temp = fromPage; 1724 fromPage = toPage; 1725 toPage = temp; 1726 } 1727 1728 final int screenCount = getChildCount(); 1729 1730 fromPage = Math.max(fromPage, 0); 1731 toPage = Math.min(toPage, screenCount - 1); 1732 1733 for (int i = fromPage; i <= toPage; i++) { 1734 final CellLayout layout = (CellLayout) getChildAt(i); 1735 layout.setChildrenDrawnWithCacheEnabled(true); 1736 layout.setChildrenDrawingCacheEnabled(true); 1737 } 1738 } 1739 1740 void clearChildrenCache() { 1741 final int screenCount = getChildCount(); 1742 for (int i = 0; i < screenCount; i++) { 1743 final CellLayout layout = (CellLayout) getChildAt(i); 1744 layout.setChildrenDrawnWithCacheEnabled(false); 1745 // In software mode, we don't want the items to continue to be drawn into bitmaps 1746 if (!isHardwareAccelerated()) { 1747 layout.setChildrenDrawingCacheEnabled(false); 1748 } 1749 } 1750 } 1751 1752 private void updateChildrenLayersEnabled(boolean force) { 1753 boolean small = mState == State.SMALL || mState == State.OVERVIEW || mIsSwitchingState; 1754 boolean enableChildrenLayers = force || small || mAnimatingViewIntoPlace || isPageMoving(); 1755 1756 if (enableChildrenLayers != mChildrenLayersEnabled) { 1757 mChildrenLayersEnabled = enableChildrenLayers; 1758 if (mChildrenLayersEnabled) { 1759 enableHwLayersOnVisiblePages(); 1760 } else { 1761 for (int i = 0; i < getPageCount(); i++) { 1762 final CellLayout cl = (CellLayout) getChildAt(i); 1763 cl.enableHardwareLayer(false); 1764 } 1765 } 1766 } 1767 } 1768 1769 private void enableHwLayersOnVisiblePages() { 1770 if (mChildrenLayersEnabled) { 1771 final int screenCount = getChildCount(); 1772 getVisiblePages(mTempVisiblePagesRange); 1773 int leftScreen = mTempVisiblePagesRange[0]; 1774 int rightScreen = mTempVisiblePagesRange[1]; 1775 if (leftScreen == rightScreen) { 1776 // make sure we're caching at least two pages always 1777 if (rightScreen < screenCount - 1) { 1778 rightScreen++; 1779 } else if (leftScreen > 0) { 1780 leftScreen--; 1781 } 1782 } 1783 1784 final CellLayout customScreen = mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID); 1785 for (int i = 0; i < screenCount; i++) { 1786 final CellLayout layout = (CellLayout) getPageAt(i); 1787 1788 // enable layers between left and right screen inclusive, except for the 1789 // customScreen, which may animate its content during transitions. 1790 boolean enableLayer = layout != customScreen && 1791 leftScreen <= i && i <= rightScreen && shouldDrawChild(layout); 1792 layout.enableHardwareLayer(enableLayer); 1793 } 1794 } 1795 } 1796 1797 public void buildPageHardwareLayers() { 1798 // force layers to be enabled just for the call to buildLayer 1799 updateChildrenLayersEnabled(true); 1800 if (getWindowToken() != null) { 1801 final int childCount = getChildCount(); 1802 for (int i = 0; i < childCount; i++) { 1803 CellLayout cl = (CellLayout) getChildAt(i); 1804 cl.buildHardwareLayer(); 1805 } 1806 } 1807 updateChildrenLayersEnabled(false); 1808 } 1809 1810 protected void onWallpaperTap(MotionEvent ev) { 1811 final int[] position = mTempCell; 1812 getLocationOnScreen(position); 1813 1814 int pointerIndex = ev.getActionIndex(); 1815 position[0] += (int) ev.getX(pointerIndex); 1816 position[1] += (int) ev.getY(pointerIndex); 1817 1818 mWallpaperManager.sendWallpaperCommand(getWindowToken(), 1819 ev.getAction() == MotionEvent.ACTION_UP 1820 ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP, 1821 position[0], position[1], 0, null); 1822 } 1823 1824 /* 1825 * This interpolator emulates the rate at which the perceived scale of an object changes 1826 * as its distance from a camera increases. When this interpolator is applied to a scale 1827 * animation on a view, it evokes the sense that the object is shrinking due to moving away 1828 * from the camera. 1829 */ 1830 static class ZInterpolator implements TimeInterpolator { 1831 private float focalLength; 1832 1833 public ZInterpolator(float foc) { 1834 focalLength = foc; 1835 } 1836 1837 public float getInterpolation(float input) { 1838 return (1.0f - focalLength / (focalLength + input)) / 1839 (1.0f - focalLength / (focalLength + 1.0f)); 1840 } 1841 } 1842 1843 /* 1844 * The exact reverse of ZInterpolator. 1845 */ 1846 static class InverseZInterpolator implements TimeInterpolator { 1847 private ZInterpolator zInterpolator; 1848 public InverseZInterpolator(float foc) { 1849 zInterpolator = new ZInterpolator(foc); 1850 } 1851 public float getInterpolation(float input) { 1852 return 1 - zInterpolator.getInterpolation(1 - input); 1853 } 1854 } 1855 1856 /* 1857 * ZInterpolator compounded with an ease-out. 1858 */ 1859 static class ZoomOutInterpolator implements TimeInterpolator { 1860 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(0.75f); 1861 private final ZInterpolator zInterpolator = new ZInterpolator(0.13f); 1862 1863 public float getInterpolation(float input) { 1864 return decelerate.getInterpolation(zInterpolator.getInterpolation(input)); 1865 } 1866 } 1867 1868 /* 1869 * InvereZInterpolator compounded with an ease-out. 1870 */ 1871 static class ZoomInInterpolator implements TimeInterpolator { 1872 private final InverseZInterpolator inverseZInterpolator = new InverseZInterpolator(0.35f); 1873 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(3.0f); 1874 1875 public float getInterpolation(float input) { 1876 return decelerate.getInterpolation(inverseZInterpolator.getInterpolation(input)); 1877 } 1878 } 1879 1880 private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator(); 1881 1882 /* 1883 * 1884 * We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we 1885 * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace 1886 * 1887 * These methods mark the appropriate pages as accepting drops (which alters their visual 1888 * appearance). 1889 * 1890 */ 1891 public void onDragStartedWithItem(View v) { 1892 final Canvas canvas = new Canvas(); 1893 1894 // The outline is used to visualize where the item will land if dropped 1895 mDragOutline = createDragOutline(v, canvas, DRAG_BITMAP_PADDING); 1896 } 1897 1898 public void onDragStartedWithItem(PendingAddItemInfo info, Bitmap b, boolean clipAlpha) { 1899 final Canvas canvas = new Canvas(); 1900 1901 int[] size = estimateItemSize(info.spanX, info.spanY, info, false); 1902 1903 // The outline is used to visualize where the item will land if dropped 1904 mDragOutline = createDragOutline(b, canvas, DRAG_BITMAP_PADDING, size[0], 1905 size[1], clipAlpha); 1906 } 1907 1908 public void exitWidgetResizeMode() { 1909 DragLayer dragLayer = mLauncher.getDragLayer(); 1910 dragLayer.clearAllResizeFrames(); 1911 } 1912 1913 private void initAnimationArrays() { 1914 final int childCount = getChildCount(); 1915 if (mLastChildCount == childCount) return; 1916 1917 mOldBackgroundAlphas = new float[childCount]; 1918 mOldAlphas = new float[childCount]; 1919 mNewBackgroundAlphas = new float[childCount]; 1920 mNewAlphas = new float[childCount]; 1921 } 1922 1923 Animator getChangeStateAnimation(final State state, boolean animated) { 1924 return getChangeStateAnimation(state, animated, 0, -1); 1925 } 1926 1927 @Override 1928 protected void getOverviewModePages(int[] range) { 1929 int start = numCustomPages(); 1930 int end = getChildCount() - 1; 1931 1932 range[0] = Math.max(0, Math.min(start, getChildCount() - 1)); 1933 range[1] = Math.max(0, end); 1934 } 1935 1936 protected void onStartReordering() { 1937 super.onStartReordering(); 1938 showOutlines(); 1939 // Reordering handles its own animations, disable the automatic ones. 1940 disableLayoutTransitions(); 1941 } 1942 1943 protected void onEndReordering() { 1944 super.onEndReordering(); 1945 1946 hideOutlines(); 1947 mScreenOrder.clear(); 1948 int count = getChildCount(); 1949 for (int i = 0; i < count; i++) { 1950 CellLayout cl = ((CellLayout) getChildAt(i)); 1951 mScreenOrder.add(getIdForScreen(cl)); 1952 } 1953 1954 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 1955 1956 // Re-enable auto layout transitions for page deletion. 1957 enableLayoutTransitions(); 1958 } 1959 1960 public boolean isInOverviewMode() { 1961 return mState == State.OVERVIEW; 1962 } 1963 1964 public boolean enterOverviewMode() { 1965 if (mTouchState != TOUCH_STATE_REST) { 1966 return false; 1967 } 1968 enableOverviewMode(true, -1, true); 1969 return true; 1970 } 1971 1972 public void exitOverviewMode(boolean animated) { 1973 exitOverviewMode(-1, animated); 1974 } 1975 1976 public void exitOverviewMode(int snapPage, boolean animated) { 1977 enableOverviewMode(false, snapPage, animated); 1978 } 1979 1980 private void enableOverviewMode(boolean enable, int snapPage, boolean animated) { 1981 State finalState = Workspace.State.OVERVIEW; 1982 if (!enable) { 1983 finalState = Workspace.State.NORMAL; 1984 } 1985 1986 Animator workspaceAnim = getChangeStateAnimation(finalState, animated, 0, snapPage); 1987 if (workspaceAnim != null) { 1988 onTransitionPrepare(); 1989 workspaceAnim.addListener(new AnimatorListenerAdapter() { 1990 @Override 1991 public void onAnimationEnd(Animator arg0) { 1992 onTransitionEnd(); 1993 } 1994 }); 1995 workspaceAnim.start(); 1996 } 1997 } 1998 1999 int getOverviewModeTranslationY() { 2000 LauncherAppState app = LauncherAppState.getInstance(); 2001 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2002 Rect overviewBar = grid.getOverviewModeButtonBarRect(); 2003 2004 int availableHeight = getViewportHeight(); 2005 int scaledHeight = (int) (mOverviewModeShrinkFactor * getNormalChildHeight()); 2006 int offsetFromTopEdge = (availableHeight - scaledHeight) / 2; 2007 int offsetToCenterInOverview = (availableHeight - mInsets.top - overviewBar.height() 2008 - scaledHeight) / 2; 2009 2010 return -offsetFromTopEdge + mInsets.top + offsetToCenterInOverview; 2011 } 2012 2013 boolean shouldVoiceButtonProxyBeVisible() { 2014 if (isOnOrMovingToCustomContent()) { 2015 return false; 2016 } 2017 if (mState != State.NORMAL) { 2018 return false; 2019 } 2020 return true; 2021 } 2022 2023 public void updateInteractionForState() { 2024 if (mState != State.NORMAL) { 2025 mLauncher.onInteractionBegin(); 2026 } else { 2027 mLauncher.onInteractionEnd(); 2028 } 2029 } 2030 2031 private void setState(State state) { 2032 mState = state; 2033 updateInteractionForState(); 2034 updateAccessibilityFlags(); 2035 } 2036 2037 private void updateAccessibilityFlags() { 2038 int accessible = mState == State.NORMAL ? 2039 ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_YES : 2040 ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS; 2041 setImportantForAccessibility(accessible); 2042 } 2043 2044 Animator getChangeStateAnimation(final State state, boolean animated, int delay, int snapPage) { 2045 if (mState == state) { 2046 return null; 2047 } 2048 2049 // Initialize animation arrays for the first time if necessary 2050 initAnimationArrays(); 2051 2052 AnimatorSet anim = animated ? LauncherAnimUtils.createAnimatorSet() : null; 2053 2054 final State oldState = mState; 2055 final boolean oldStateIsNormal = (oldState == State.NORMAL); 2056 final boolean oldStateIsSpringLoaded = (oldState == State.SPRING_LOADED); 2057 final boolean oldStateIsSmall = (oldState == State.SMALL); 2058 final boolean oldStateIsOverview = (oldState == State.OVERVIEW); 2059 setState(state); 2060 final boolean stateIsNormal = (state == State.NORMAL); 2061 final boolean stateIsSpringLoaded = (state == State.SPRING_LOADED); 2062 final boolean stateIsSmall = (state == State.SMALL); 2063 final boolean stateIsOverview = (state == State.OVERVIEW); 2064 float finalBackgroundAlpha = (stateIsSpringLoaded || stateIsOverview) ? 1.0f : 0f; 2065 float finalHotseatAndPageIndicatorAlpha = (stateIsOverview || stateIsSmall) ? 0f : 1f; 2066 float finalOverviewPanelAlpha = stateIsOverview ? 1f : 0f; 2067 float finalSearchBarAlpha = !stateIsNormal ? 0f : 1f; 2068 float finalWorkspaceTranslationY = stateIsOverview ? getOverviewModeTranslationY() : 0; 2069 2070 boolean workspaceToAllApps = (oldStateIsNormal && stateIsSmall); 2071 boolean allAppsToWorkspace = (oldStateIsSmall && stateIsNormal); 2072 boolean workspaceToOverview = (oldStateIsNormal && stateIsOverview); 2073 boolean overviewToWorkspace = (oldStateIsOverview && stateIsNormal); 2074 2075 mNewScale = 1.0f; 2076 2077 if (oldStateIsOverview) { 2078 disableFreeScroll(snapPage); 2079 } else if (stateIsOverview) { 2080 enableFreeScroll(); 2081 } 2082 2083 if (state != State.NORMAL) { 2084 if (stateIsSpringLoaded) { 2085 mNewScale = mSpringLoadedShrinkFactor; 2086 } else if (stateIsOverview) { 2087 mNewScale = mOverviewModeShrinkFactor; 2088 } else if (stateIsSmall){ 2089 mNewScale = mOverviewModeShrinkFactor - 0.3f; 2090 } 2091 if (workspaceToAllApps) { 2092 updateChildrenLayersEnabled(false); 2093 } 2094 } 2095 2096 final int duration; 2097 if (workspaceToAllApps) { 2098 duration = getResources().getInteger(R.integer.config_workspaceUnshrinkTime); 2099 } else if (workspaceToOverview || overviewToWorkspace) { 2100 duration = getResources().getInteger(R.integer.config_overviewTransitionTime); 2101 } else { 2102 duration = getResources().getInteger(R.integer.config_appsCustomizeWorkspaceShrinkTime); 2103 } 2104 2105 for (int i = 0; i < getChildCount(); i++) { 2106 final CellLayout cl = (CellLayout) getChildAt(i); 2107 boolean isCurrentPage = (i == getNextPage()); 2108 float initialAlpha = cl.getShortcutsAndWidgets().getAlpha(); 2109 float finalAlpha; 2110 if (stateIsSmall) { 2111 finalAlpha = 0f; 2112 } else if (stateIsNormal && mWorkspaceFadeInAdjacentScreens) { 2113 2114 finalAlpha = (i == getNextPage() || i < numCustomPages()) ? 1f : 0f; 2115 } else { 2116 finalAlpha = 1f; 2117 } 2118 2119 // If we are animating to/from the small state, then hide the side pages and fade the 2120 // current page in 2121 if (!mIsSwitchingState) { 2122 if (workspaceToAllApps || allAppsToWorkspace) { 2123 if (allAppsToWorkspace && isCurrentPage) { 2124 initialAlpha = 0f; 2125 } else if (!isCurrentPage) { 2126 initialAlpha = finalAlpha = 0f; 2127 } 2128 cl.setShortcutAndWidgetAlpha(initialAlpha); 2129 } 2130 } 2131 2132 mOldAlphas[i] = initialAlpha; 2133 mNewAlphas[i] = finalAlpha; 2134 if (animated) { 2135 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 2136 mNewBackgroundAlphas[i] = finalBackgroundAlpha; 2137 } else { 2138 cl.setBackgroundAlpha(finalBackgroundAlpha); 2139 cl.setShortcutAndWidgetAlpha(finalAlpha); 2140 } 2141 } 2142 2143 final View searchBar = mLauncher.getQsbBar(); 2144 final View overviewPanel = mLauncher.getOverviewPanel(); 2145 final View hotseat = mLauncher.getHotseat(); 2146 if (animated) { 2147 anim.setDuration(duration); 2148 LauncherViewPropertyAnimator scale = new LauncherViewPropertyAnimator(this); 2149 scale.scaleX(mNewScale) 2150 .scaleY(mNewScale) 2151 .translationY(finalWorkspaceTranslationY) 2152 .setInterpolator(mZoomInInterpolator); 2153 anim.play(scale); 2154 for (int index = 0; index < getChildCount(); index++) { 2155 final int i = index; 2156 final CellLayout cl = (CellLayout) getChildAt(i); 2157 float currentAlpha = cl.getShortcutsAndWidgets().getAlpha(); 2158 if (mOldAlphas[i] == 0 && mNewAlphas[i] == 0) { 2159 cl.setBackgroundAlpha(mNewBackgroundAlphas[i]); 2160 cl.setShortcutAndWidgetAlpha(mNewAlphas[i]); 2161 } else { 2162 if (mOldAlphas[i] != mNewAlphas[i] || currentAlpha != mNewAlphas[i]) { 2163 LauncherViewPropertyAnimator alphaAnim = 2164 new LauncherViewPropertyAnimator(cl.getShortcutsAndWidgets()); 2165 alphaAnim.alpha(mNewAlphas[i]) 2166 .setInterpolator(mZoomInInterpolator); 2167 anim.play(alphaAnim); 2168 } 2169 if (mOldBackgroundAlphas[i] != 0 || 2170 mNewBackgroundAlphas[i] != 0) { 2171 ValueAnimator bgAnim = 2172 LauncherAnimUtils.ofFloat(cl, 0f, 1f); 2173 bgAnim.setInterpolator(mZoomInInterpolator); 2174 bgAnim.addUpdateListener(new LauncherAnimatorUpdateListener() { 2175 public void onAnimationUpdate(float a, float b) { 2176 cl.setBackgroundAlpha( 2177 a * mOldBackgroundAlphas[i] + 2178 b * mNewBackgroundAlphas[i]); 2179 } 2180 }); 2181 anim.play(bgAnim); 2182 } 2183 } 2184 } 2185 ObjectAnimator pageIndicatorAlpha = null; 2186 if (getPageIndicator() != null) { 2187 pageIndicatorAlpha = ObjectAnimator.ofFloat(getPageIndicator(), "alpha", 2188 finalHotseatAndPageIndicatorAlpha); 2189 } 2190 ObjectAnimator hotseatAlpha = ObjectAnimator.ofFloat(hotseat, "alpha", 2191 finalHotseatAndPageIndicatorAlpha); 2192 ObjectAnimator searchBarAlpha = ObjectAnimator.ofFloat(searchBar, 2193 "alpha", finalSearchBarAlpha); 2194 ObjectAnimator overviewPanelAlpha = ObjectAnimator.ofFloat(overviewPanel, 2195 "alpha", finalOverviewPanelAlpha); 2196 2197 overviewPanelAlpha.addListener(new AlphaUpdateListener(overviewPanel)); 2198 hotseatAlpha.addListener(new AlphaUpdateListener(hotseat)); 2199 searchBarAlpha.addListener(new AlphaUpdateListener(searchBar)); 2200 2201 if (workspaceToOverview) { 2202 hotseatAlpha.setInterpolator(new DecelerateInterpolator(2)); 2203 } else if (overviewToWorkspace) { 2204 overviewPanelAlpha.setInterpolator(new DecelerateInterpolator(2)); 2205 } 2206 2207 if (getPageIndicator() != null) { 2208 pageIndicatorAlpha.addListener(new AlphaUpdateListener(getPageIndicator())); 2209 } 2210 2211 anim.play(overviewPanelAlpha); 2212 anim.play(hotseatAlpha); 2213 anim.play(searchBarAlpha); 2214 anim.play(pageIndicatorAlpha); 2215 anim.setStartDelay(delay); 2216 } else { 2217 overviewPanel.setAlpha(finalOverviewPanelAlpha); 2218 AlphaUpdateListener.updateVisibility(overviewPanel); 2219 hotseat.setAlpha(finalHotseatAndPageIndicatorAlpha); 2220 AlphaUpdateListener.updateVisibility(hotseat); 2221 if (getPageIndicator() != null) { 2222 getPageIndicator().setAlpha(finalHotseatAndPageIndicatorAlpha); 2223 AlphaUpdateListener.updateVisibility(getPageIndicator()); 2224 } 2225 searchBar.setAlpha(finalSearchBarAlpha); 2226 AlphaUpdateListener.updateVisibility(searchBar); 2227 updateCustomContentVisibility(); 2228 setScaleX(mNewScale); 2229 setScaleY(mNewScale); 2230 setTranslationY(finalWorkspaceTranslationY); 2231 } 2232 mLauncher.updateVoiceButtonProxyVisible(false); 2233 2234 if (stateIsSpringLoaded) { 2235 // Right now we're covered by Apps Customize 2236 // Show the background gradient immediately, so the gradient will 2237 // be showing once AppsCustomize disappears 2238 animateBackgroundGradient(getResources().getInteger( 2239 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, false); 2240 } else if (stateIsOverview) { 2241 animateBackgroundGradient(getResources().getInteger( 2242 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, true); 2243 } else { 2244 // Fade the background gradient away 2245 animateBackgroundGradient(0f, animated); 2246 } 2247 return anim; 2248 } 2249 2250 static class AlphaUpdateListener implements AnimatorUpdateListener, AnimatorListener { 2251 View view; 2252 public AlphaUpdateListener(View v) { 2253 view = v; 2254 } 2255 2256 @Override 2257 public void onAnimationUpdate(ValueAnimator arg0) { 2258 updateVisibility(view); 2259 } 2260 2261 public static void updateVisibility(View view) { 2262 // We want to avoid the extra layout pass by setting the views to GONE unless 2263 // accessibility is on, in which case not setting them to GONE causes a glitch. 2264 int invisibleState = sAccessibilityEnabled ? GONE : INVISIBLE; 2265 if (view.getAlpha() < ALPHA_CUTOFF_THRESHOLD && view.getVisibility() != invisibleState) { 2266 view.setVisibility(invisibleState); 2267 } else if (view.getAlpha() > ALPHA_CUTOFF_THRESHOLD 2268 && view.getVisibility() != VISIBLE) { 2269 view.setVisibility(VISIBLE); 2270 } 2271 } 2272 2273 @Override 2274 public void onAnimationCancel(Animator arg0) { 2275 } 2276 2277 @Override 2278 public void onAnimationEnd(Animator arg0) { 2279 updateVisibility(view); 2280 } 2281 2282 @Override 2283 public void onAnimationRepeat(Animator arg0) { 2284 } 2285 2286 @Override 2287 public void onAnimationStart(Animator arg0) { 2288 // We want the views to be visible for animation, so fade-in/out is visible 2289 view.setVisibility(VISIBLE); 2290 } 2291 } 2292 2293 @Override 2294 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 2295 onTransitionPrepare(); 2296 } 2297 2298 @Override 2299 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 2300 } 2301 2302 @Override 2303 public void onLauncherTransitionStep(Launcher l, float t) { 2304 mTransitionProgress = t; 2305 } 2306 2307 @Override 2308 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 2309 onTransitionEnd(); 2310 } 2311 2312 private void onTransitionPrepare() { 2313 mIsSwitchingState = true; 2314 2315 // Invalidate here to ensure that the pages are rendered during the state change transition. 2316 invalidate(); 2317 2318 updateChildrenLayersEnabled(false); 2319 hideCustomContentIfNecessary(); 2320 } 2321 2322 void updateCustomContentVisibility() { 2323 int visibility = mState == Workspace.State.NORMAL ? VISIBLE : INVISIBLE; 2324 if (hasCustomContent()) { 2325 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(visibility); 2326 } 2327 } 2328 2329 void showCustomContentIfNecessary() { 2330 boolean show = mState == Workspace.State.NORMAL; 2331 if (show && hasCustomContent()) { 2332 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(VISIBLE); 2333 } 2334 } 2335 2336 void hideCustomContentIfNecessary() { 2337 boolean hide = mState != Workspace.State.NORMAL; 2338 if (hide && hasCustomContent()) { 2339 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(INVISIBLE); 2340 } 2341 } 2342 2343 private void onTransitionEnd() { 2344 mIsSwitchingState = false; 2345 updateChildrenLayersEnabled(false); 2346 // The code in getChangeStateAnimation to determine initialAlpha and finalAlpha will ensure 2347 // ensure that only the current page is visible during (and subsequently, after) the 2348 // transition animation. If fade adjacent pages is disabled, then re-enable the page 2349 // visibility after the transition animation. 2350 if (!mWorkspaceFadeInAdjacentScreens) { 2351 for (int i = 0; i < getChildCount(); i++) { 2352 final CellLayout cl = (CellLayout) getChildAt(i); 2353 cl.setShortcutAndWidgetAlpha(1f); 2354 } 2355 } else { 2356 for (int i = 0; i < numCustomPages(); i++) { 2357 final CellLayout cl = (CellLayout) getChildAt(i); 2358 cl.setShortcutAndWidgetAlpha(1f); 2359 } 2360 } 2361 showCustomContentIfNecessary(); 2362 } 2363 2364 @Override 2365 public View getContent() { 2366 return this; 2367 } 2368 2369 /** 2370 * Draw the View v into the given Canvas. 2371 * 2372 * @param v the view to draw 2373 * @param destCanvas the canvas to draw on 2374 * @param padding the horizontal and vertical padding to use when drawing 2375 */ 2376 private void drawDragView(View v, Canvas destCanvas, int padding, boolean pruneToDrawable) { 2377 final Rect clipRect = mTempRect; 2378 v.getDrawingRect(clipRect); 2379 2380 boolean textVisible = false; 2381 2382 destCanvas.save(); 2383 if (v instanceof TextView && pruneToDrawable) { 2384 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2385 clipRect.set(0, 0, d.getIntrinsicWidth() + padding, d.getIntrinsicHeight() + padding); 2386 destCanvas.translate(padding / 2, padding / 2); 2387 d.draw(destCanvas); 2388 } else { 2389 if (v instanceof FolderIcon) { 2390 // For FolderIcons the text can bleed into the icon area, and so we need to 2391 // hide the text completely (which can't be achieved by clipping). 2392 if (((FolderIcon) v).getTextVisible()) { 2393 ((FolderIcon) v).setTextVisible(false); 2394 textVisible = true; 2395 } 2396 } else if (v instanceof BubbleTextView) { 2397 final BubbleTextView tv = (BubbleTextView) v; 2398 clipRect.bottom = tv.getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V + 2399 tv.getLayout().getLineTop(0); 2400 } else if (v instanceof TextView) { 2401 final TextView tv = (TextView) v; 2402 clipRect.bottom = tv.getExtendedPaddingTop() - tv.getCompoundDrawablePadding() + 2403 tv.getLayout().getLineTop(0); 2404 } 2405 destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2); 2406 destCanvas.clipRect(clipRect, Op.REPLACE); 2407 v.draw(destCanvas); 2408 2409 // Restore text visibility of FolderIcon if necessary 2410 if (textVisible) { 2411 ((FolderIcon) v).setTextVisible(true); 2412 } 2413 } 2414 destCanvas.restore(); 2415 } 2416 2417 /** 2418 * Returns a new bitmap to show when the given View is being dragged around. 2419 * Responsibility for the bitmap is transferred to the caller. 2420 */ 2421 public Bitmap createDragBitmap(View v, Canvas canvas, int padding) { 2422 Bitmap b; 2423 2424 if (v instanceof TextView) { 2425 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2426 b = Bitmap.createBitmap(d.getIntrinsicWidth() + padding, 2427 d.getIntrinsicHeight() + padding, Bitmap.Config.ARGB_8888); 2428 } else { 2429 b = Bitmap.createBitmap( 2430 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2431 } 2432 2433 canvas.setBitmap(b); 2434 drawDragView(v, canvas, padding, true); 2435 canvas.setBitmap(null); 2436 2437 return b; 2438 } 2439 2440 /** 2441 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2442 * Responsibility for the bitmap is transferred to the caller. 2443 */ 2444 private Bitmap createDragOutline(View v, Canvas canvas, int padding) { 2445 final int outlineColor = getResources().getColor(R.color.outline_color); 2446 final Bitmap b = Bitmap.createBitmap( 2447 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2448 2449 canvas.setBitmap(b); 2450 drawDragView(v, canvas, padding, true); 2451 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 2452 canvas.setBitmap(null); 2453 return b; 2454 } 2455 2456 /** 2457 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2458 * Responsibility for the bitmap is transferred to the caller. 2459 */ 2460 private Bitmap createDragOutline(Bitmap orig, Canvas canvas, int padding, int w, int h, 2461 boolean clipAlpha) { 2462 final int outlineColor = getResources().getColor(R.color.outline_color); 2463 final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 2464 canvas.setBitmap(b); 2465 2466 Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight()); 2467 float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(), 2468 (h - padding) / (float) orig.getHeight()); 2469 int scaledWidth = (int) (scaleFactor * orig.getWidth()); 2470 int scaledHeight = (int) (scaleFactor * orig.getHeight()); 2471 Rect dst = new Rect(0, 0, scaledWidth, scaledHeight); 2472 2473 // center the image 2474 dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2); 2475 2476 canvas.drawBitmap(orig, src, dst, null); 2477 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor, 2478 clipAlpha); 2479 canvas.setBitmap(null); 2480 2481 return b; 2482 } 2483 2484 void startDrag(CellLayout.CellInfo cellInfo) { 2485 View child = cellInfo.cell; 2486 2487 // Make sure the drag was started by a long press as opposed to a long click. 2488 if (!child.isInTouchMode()) { 2489 return; 2490 } 2491 2492 mDragInfo = cellInfo; 2493 child.setVisibility(INVISIBLE); 2494 CellLayout layout = (CellLayout) child.getParent().getParent(); 2495 layout.prepareChildForDrag(child); 2496 2497 child.clearFocus(); 2498 child.setPressed(false); 2499 2500 final Canvas canvas = new Canvas(); 2501 2502 // The outline is used to visualize where the item will land if dropped 2503 mDragOutline = createDragOutline(child, canvas, DRAG_BITMAP_PADDING); 2504 beginDragShared(child, this); 2505 } 2506 2507 public void beginDragShared(View child, DragSource source) { 2508 // The drag bitmap follows the touch point around on the screen 2509 final Bitmap b = createDragBitmap(child, new Canvas(), DRAG_BITMAP_PADDING); 2510 2511 final int bmpWidth = b.getWidth(); 2512 final int bmpHeight = b.getHeight(); 2513 2514 float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY); 2515 int dragLayerX = 2516 Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2); 2517 int dragLayerY = 2518 Math.round(mTempXY[1] - (bmpHeight - scale * bmpHeight) / 2 2519 - DRAG_BITMAP_PADDING / 2); 2520 2521 LauncherAppState app = LauncherAppState.getInstance(); 2522 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2523 Point dragVisualizeOffset = null; 2524 Rect dragRect = null; 2525 if (child instanceof BubbleTextView || child instanceof PagedViewIcon) { 2526 int iconSize = grid.iconSizePx; 2527 int top = child.getPaddingTop(); 2528 int left = (bmpWidth - iconSize) / 2; 2529 int right = left + iconSize; 2530 int bottom = top + iconSize; 2531 dragLayerY += top; 2532 // Note: The drag region is used to calculate drag layer offsets, but the 2533 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 2534 dragVisualizeOffset = new Point(-DRAG_BITMAP_PADDING / 2, DRAG_BITMAP_PADDING / 2); 2535 dragRect = new Rect(left, top, right, bottom); 2536 } else if (child instanceof FolderIcon) { 2537 int previewSize = grid.folderIconSizePx; 2538 dragRect = new Rect(0, child.getPaddingTop(), child.getWidth(), previewSize); 2539 } 2540 2541 // Clear the pressed state if necessary 2542 if (child instanceof BubbleTextView) { 2543 BubbleTextView icon = (BubbleTextView) child; 2544 icon.clearPressedOrFocusedBackground(); 2545 } 2546 2547 if (child.getTag() == null || !(child.getTag() instanceof ItemInfo)) { 2548 String msg = "Drag started with a view that has no tag set. This " 2549 + "will cause a crash (issue 11627249) down the line. " 2550 + "View: " + child + " tag: " + child.getTag(); 2551 throw new IllegalStateException(msg); 2552 } 2553 2554 mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2555 DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect, scale); 2556 2557 if (child.getParent() instanceof ShortcutAndWidgetContainer) { 2558 mDragSourceInternal = (ShortcutAndWidgetContainer) child.getParent(); 2559 } 2560 2561 b.recycle(); 2562 } 2563 2564 void addApplicationShortcut(ShortcutInfo info, CellLayout target, long container, long screenId, 2565 int cellX, int cellY, boolean insertAtFirst, int intersectX, int intersectY) { 2566 View view = mLauncher.createShortcut(R.layout.application, target, (ShortcutInfo) info); 2567 2568 final int[] cellXY = new int[2]; 2569 target.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY); 2570 addInScreen(view, container, screenId, cellXY[0], cellXY[1], 1, 1, insertAtFirst); 2571 2572 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, cellXY[0], 2573 cellXY[1]); 2574 } 2575 2576 public boolean transitionStateShouldAllowDrop() { 2577 return ((!isSwitchingState() || mTransitionProgress > 0.5f) && mState != State.SMALL); 2578 } 2579 2580 /** 2581 * {@inheritDoc} 2582 */ 2583 public boolean acceptDrop(DragObject d) { 2584 // If it's an external drop (e.g. from All Apps), check if it should be accepted 2585 CellLayout dropTargetLayout = mDropToLayout; 2586 if (d.dragSource != this) { 2587 // Don't accept the drop if we're not over a screen at time of drop 2588 if (dropTargetLayout == null) { 2589 return false; 2590 } 2591 if (!transitionStateShouldAllowDrop()) return false; 2592 2593 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2594 d.dragView, mDragViewVisualCenter); 2595 2596 // We want the point to be mapped to the dragTarget. 2597 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2598 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2599 } else { 2600 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2601 } 2602 2603 int spanX = 1; 2604 int spanY = 1; 2605 if (mDragInfo != null) { 2606 final CellLayout.CellInfo dragCellInfo = mDragInfo; 2607 spanX = dragCellInfo.spanX; 2608 spanY = dragCellInfo.spanY; 2609 } else { 2610 final ItemInfo dragInfo = (ItemInfo) d.dragInfo; 2611 spanX = dragInfo.spanX; 2612 spanY = dragInfo.spanY; 2613 } 2614 2615 int minSpanX = spanX; 2616 int minSpanY = spanY; 2617 if (d.dragInfo instanceof PendingAddWidgetInfo) { 2618 minSpanX = ((PendingAddWidgetInfo) d.dragInfo).minSpanX; 2619 minSpanY = ((PendingAddWidgetInfo) d.dragInfo).minSpanY; 2620 } 2621 2622 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2623 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, dropTargetLayout, 2624 mTargetCell); 2625 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2626 mDragViewVisualCenter[1], mTargetCell); 2627 if (willCreateUserFolder((ItemInfo) d.dragInfo, dropTargetLayout, 2628 mTargetCell, distance, true)) { 2629 return true; 2630 } 2631 if (willAddToExistingUserFolder((ItemInfo) d.dragInfo, dropTargetLayout, 2632 mTargetCell, distance)) { 2633 return true; 2634 } 2635 2636 int[] resultSpan = new int[2]; 2637 mTargetCell = dropTargetLayout.createArea((int) mDragViewVisualCenter[0], 2638 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 2639 null, mTargetCell, resultSpan, CellLayout.MODE_ACCEPT_DROP); 2640 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2641 2642 // Don't accept the drop if there's no room for the item 2643 if (!foundCell) { 2644 // Don't show the message if we are dropping on the AllApps button and the hotseat 2645 // is full 2646 boolean isHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2647 if (mTargetCell != null && isHotseat) { 2648 Hotseat hotseat = mLauncher.getHotseat(); 2649 if (hotseat.isAllAppsButtonRank( 2650 hotseat.getOrderInHotseat(mTargetCell[0], mTargetCell[1]))) { 2651 return false; 2652 } 2653 } 2654 2655 mLauncher.showOutOfSpaceMessage(isHotseat); 2656 return false; 2657 } 2658 } 2659 2660 long screenId = getIdForScreen(dropTargetLayout); 2661 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 2662 commitExtraEmptyScreen(); 2663 } 2664 2665 return true; 2666 } 2667 2668 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, float 2669 distance, boolean considerTimeout) { 2670 if (distance > mMaxDistanceForFolderCreation) return false; 2671 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2672 2673 if (dropOverView != null) { 2674 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2675 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2676 return false; 2677 } 2678 } 2679 2680 boolean hasntMoved = false; 2681 if (mDragInfo != null) { 2682 hasntMoved = dropOverView == mDragInfo.cell; 2683 } 2684 2685 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 2686 return false; 2687 } 2688 2689 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 2690 boolean willBecomeShortcut = 2691 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 2692 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT); 2693 2694 return (aboveShortcut && willBecomeShortcut); 2695 } 2696 2697 boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell, 2698 float distance) { 2699 if (distance > mMaxDistanceForFolderCreation) return false; 2700 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2701 2702 if (dropOverView != null) { 2703 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2704 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2705 return false; 2706 } 2707 } 2708 2709 if (dropOverView instanceof FolderIcon) { 2710 FolderIcon fi = (FolderIcon) dropOverView; 2711 if (fi.acceptDrop(dragInfo)) { 2712 return true; 2713 } 2714 } 2715 return false; 2716 } 2717 2718 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 2719 int[] targetCell, float distance, boolean external, DragView dragView, 2720 Runnable postAnimationRunnable) { 2721 if (distance > mMaxDistanceForFolderCreation) return false; 2722 View v = target.getChildAt(targetCell[0], targetCell[1]); 2723 2724 boolean hasntMoved = false; 2725 if (mDragInfo != null) { 2726 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2727 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2728 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2729 } 2730 2731 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 2732 mCreateUserFolderOnDrop = false; 2733 final long screenId = (targetCell == null) ? mDragInfo.screenId : getIdForScreen(target); 2734 2735 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 2736 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 2737 2738 if (aboveShortcut && willBecomeShortcut) { 2739 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 2740 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 2741 // if the drag started here, we need to remove it from the workspace 2742 if (!external) { 2743 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2744 } 2745 2746 Rect folderLocation = new Rect(); 2747 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 2748 target.removeView(v); 2749 2750 FolderIcon fi = 2751 mLauncher.addFolder(target, container, screenId, targetCell[0], targetCell[1]); 2752 destInfo.cellX = -1; 2753 destInfo.cellY = -1; 2754 sourceInfo.cellX = -1; 2755 sourceInfo.cellY = -1; 2756 2757 // If the dragView is null, we can't animate 2758 boolean animate = dragView != null; 2759 if (animate) { 2760 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 2761 postAnimationRunnable); 2762 } else { 2763 fi.addItem(destInfo); 2764 fi.addItem(sourceInfo); 2765 } 2766 return true; 2767 } 2768 return false; 2769 } 2770 2771 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 2772 float distance, DragObject d, boolean external) { 2773 if (distance > mMaxDistanceForFolderCreation) return false; 2774 2775 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2776 if (!mAddToExistingFolderOnDrop) return false; 2777 mAddToExistingFolderOnDrop = false; 2778 2779 if (dropOverView instanceof FolderIcon) { 2780 FolderIcon fi = (FolderIcon) dropOverView; 2781 if (fi.acceptDrop(d.dragInfo)) { 2782 fi.onDrop(d); 2783 2784 // if the drag started here, we need to remove it from the workspace 2785 if (!external) { 2786 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2787 } 2788 return true; 2789 } 2790 } 2791 return false; 2792 } 2793 2794 public void onDrop(final DragObject d) { 2795 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, d.dragView, 2796 mDragViewVisualCenter); 2797 2798 CellLayout dropTargetLayout = mDropToLayout; 2799 2800 // We want the point to be mapped to the dragTarget. 2801 if (dropTargetLayout != null) { 2802 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2803 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2804 } else { 2805 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2806 } 2807 } 2808 2809 int snapScreen = -1; 2810 boolean resizeOnDrop = false; 2811 if (d.dragSource != this) { 2812 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 2813 (int) mDragViewVisualCenter[1] }; 2814 onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d); 2815 } else if (mDragInfo != null) { 2816 final View cell = mDragInfo.cell; 2817 2818 Runnable resizeRunnable = null; 2819 if (dropTargetLayout != null && !d.cancelled) { 2820 // Move internally 2821 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 2822 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2823 long container = hasMovedIntoHotseat ? 2824 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 2825 LauncherSettings.Favorites.CONTAINER_DESKTOP; 2826 long screenId = (mTargetCell[0] < 0) ? 2827 mDragInfo.screenId : getIdForScreen(dropTargetLayout); 2828 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 2829 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 2830 // First we find the cell nearest to point at which the item is 2831 // dropped, without any consideration to whether there is an item there. 2832 2833 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 2834 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 2835 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2836 mDragViewVisualCenter[1], mTargetCell); 2837 2838 // If the item being dropped is a shortcut and the nearest drop 2839 // cell also contains a shortcut, then create a folder with the two shortcuts. 2840 if (!mInScrollArea && createUserFolderIfNecessary(cell, container, 2841 dropTargetLayout, mTargetCell, distance, false, d.dragView, null)) { 2842 removeExtraEmptyScreen(true, null, 0, true); 2843 return; 2844 } 2845 2846 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, 2847 distance, d, false)) { 2848 removeExtraEmptyScreen(true, null, 0, true); 2849 return; 2850 } 2851 2852 // Aside from the special case where we're dropping a shortcut onto a shortcut, 2853 // we need to find the nearest cell location that is vacant 2854 ItemInfo item = (ItemInfo) d.dragInfo; 2855 int minSpanX = item.spanX; 2856 int minSpanY = item.spanY; 2857 if (item.minSpanX > 0 && item.minSpanY > 0) { 2858 minSpanX = item.minSpanX; 2859 minSpanY = item.minSpanY; 2860 } 2861 2862 int[] resultSpan = new int[2]; 2863 mTargetCell = dropTargetLayout.createArea((int) mDragViewVisualCenter[0], 2864 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, cell, 2865 mTargetCell, resultSpan, CellLayout.MODE_ON_DROP); 2866 2867 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2868 2869 // if the widget resizes on drop 2870 if (foundCell && (cell instanceof AppWidgetHostView) && 2871 (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY)) { 2872 resizeOnDrop = true; 2873 item.spanX = resultSpan[0]; 2874 item.spanY = resultSpan[1]; 2875 AppWidgetHostView awhv = (AppWidgetHostView) cell; 2876 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, resultSpan[0], 2877 resultSpan[1]); 2878 } 2879 2880 if (getScreenIdForPageIndex(mCurrentPage) != screenId && !hasMovedIntoHotseat) { 2881 snapScreen = getPageIndexForScreenId(screenId); 2882 snapToPage(snapScreen); 2883 } 2884 2885 if (foundCell) { 2886 final ItemInfo info = (ItemInfo) cell.getTag(); 2887 if (hasMovedLayouts) { 2888 // Reparent the view 2889 getParentCellLayoutForView(cell).removeView(cell); 2890 addInScreen(cell, container, screenId, mTargetCell[0], mTargetCell[1], 2891 info.spanX, info.spanY); 2892 } 2893 2894 // update the item's position after drop 2895 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2896 lp.cellX = lp.tmpCellX = mTargetCell[0]; 2897 lp.cellY = lp.tmpCellY = mTargetCell[1]; 2898 lp.cellHSpan = item.spanX; 2899 lp.cellVSpan = item.spanY; 2900 lp.isLockedToGrid = true; 2901 2902 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 2903 cell instanceof LauncherAppWidgetHostView) { 2904 final CellLayout cellLayout = dropTargetLayout; 2905 // We post this call so that the widget has a chance to be placed 2906 // in its final location 2907 2908 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 2909 AppWidgetProviderInfo pinfo = hostView.getAppWidgetInfo(); 2910 if (pinfo != null && 2911 pinfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) { 2912 final Runnable addResizeFrame = new Runnable() { 2913 public void run() { 2914 DragLayer dragLayer = mLauncher.getDragLayer(); 2915 dragLayer.addResizeFrame(info, hostView, cellLayout); 2916 } 2917 }; 2918 resizeRunnable = (new Runnable() { 2919 public void run() { 2920 if (!isPageMoving()) { 2921 addResizeFrame.run(); 2922 } else { 2923 mDelayedResizeRunnable = addResizeFrame; 2924 } 2925 } 2926 }); 2927 } 2928 } 2929 2930 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, lp.cellX, 2931 lp.cellY, item.spanX, item.spanY); 2932 } else { 2933 // If we can't find a drop location, we return the item to its original position 2934 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2935 mTargetCell[0] = lp.cellX; 2936 mTargetCell[1] = lp.cellY; 2937 CellLayout layout = (CellLayout) cell.getParent().getParent(); 2938 layout.markCellsAsOccupiedForView(cell); 2939 } 2940 } 2941 2942 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 2943 final Runnable finalResizeRunnable = resizeRunnable; 2944 // Prepare it to be animated into its new position 2945 // This must be called after the view has been re-parented 2946 final Runnable onCompleteRunnable = new Runnable() { 2947 @Override 2948 public void run() { 2949 mAnimatingViewIntoPlace = false; 2950 updateChildrenLayersEnabled(false); 2951 if (finalResizeRunnable != null) { 2952 finalResizeRunnable.run(); 2953 } 2954 removeExtraEmptyScreen(true, null, 0, true); 2955 } 2956 }; 2957 mAnimatingViewIntoPlace = true; 2958 if (d.dragView.hasDrawn()) { 2959 final ItemInfo info = (ItemInfo) cell.getTag(); 2960 if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET) { 2961 int animationType = resizeOnDrop ? ANIMATE_INTO_POSITION_AND_RESIZE : 2962 ANIMATE_INTO_POSITION_AND_DISAPPEAR; 2963 animateWidgetDrop(info, parent, d.dragView, 2964 onCompleteRunnable, animationType, cell, false); 2965 } else { 2966 int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION; 2967 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration, 2968 onCompleteRunnable, this); 2969 } 2970 } else { 2971 d.deferDragViewCleanupPostAnimation = false; 2972 cell.setVisibility(VISIBLE); 2973 } 2974 parent.onDropChild(cell); 2975 } 2976 } 2977 2978 public void setFinalScrollForPageChange(int pageIndex) { 2979 CellLayout cl = (CellLayout) getChildAt(pageIndex); 2980 if (cl != null) { 2981 mSavedScrollX = getScrollX(); 2982 mSavedTranslationX = cl.getTranslationX(); 2983 mSavedRotationY = cl.getRotationY(); 2984 final int newX = getScrollForPage(pageIndex); 2985 setScrollX(newX); 2986 cl.setTranslationX(0f); 2987 cl.setRotationY(0f); 2988 } 2989 } 2990 2991 public void resetFinalScrollForPageChange(int pageIndex) { 2992 if (pageIndex >= 0) { 2993 CellLayout cl = (CellLayout) getChildAt(pageIndex); 2994 setScrollX(mSavedScrollX); 2995 cl.setTranslationX(mSavedTranslationX); 2996 cl.setRotationY(mSavedRotationY); 2997 } 2998 } 2999 3000 public void getViewLocationRelativeToSelf(View v, int[] location) { 3001 getLocationInWindow(location); 3002 int x = location[0]; 3003 int y = location[1]; 3004 3005 v.getLocationInWindow(location); 3006 int vX = location[0]; 3007 int vY = location[1]; 3008 3009 location[0] = vX - x; 3010 location[1] = vY - y; 3011 } 3012 3013 public void onDragEnter(DragObject d) { 3014 mDragEnforcer.onDragEnter(); 3015 mCreateUserFolderOnDrop = false; 3016 mAddToExistingFolderOnDrop = false; 3017 3018 mDropToLayout = null; 3019 CellLayout layout = getCurrentDropLayout(); 3020 setCurrentDropLayout(layout); 3021 setCurrentDragOverlappingLayout(layout); 3022 3023 // Because we don't have space in the Phone UI (the CellLayouts run to the edge) we 3024 // don't need to show the outlines 3025 if (LauncherAppState.getInstance().isScreenLarge()) { 3026 showOutlines(); 3027 } 3028 } 3029 3030 /** Return a rect that has the cellWidth/cellHeight (left, top), and 3031 * widthGap/heightGap (right, bottom) */ 3032 static Rect getCellLayoutMetrics(Launcher launcher, int orientation) { 3033 LauncherAppState app = LauncherAppState.getInstance(); 3034 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 3035 3036 Resources res = launcher.getResources(); 3037 Display display = launcher.getWindowManager().getDefaultDisplay(); 3038 Point smallestSize = new Point(); 3039 Point largestSize = new Point(); 3040 display.getCurrentSizeRange(smallestSize, largestSize); 3041 int countX = (int) grid.numColumns; 3042 int countY = (int) grid.numRows; 3043 int constrainedLongEdge = largestSize.y; 3044 int constrainedShortEdge = smallestSize.y; 3045 if (orientation == CellLayout.LANDSCAPE) { 3046 if (mLandscapeCellLayoutMetrics == null) { 3047 Rect padding = grid.getWorkspacePadding(CellLayout.LANDSCAPE); 3048 int width = constrainedLongEdge - padding.left - padding.right; 3049 int height = constrainedShortEdge - padding.top - padding.bottom; 3050 mLandscapeCellLayoutMetrics = new Rect(); 3051 mLandscapeCellLayoutMetrics.set( 3052 grid.calculateCellWidth(width, countX), 3053 grid.calculateCellHeight(height, countY), 0, 0); 3054 } 3055 return mLandscapeCellLayoutMetrics; 3056 } else if (orientation == CellLayout.PORTRAIT) { 3057 if (mPortraitCellLayoutMetrics == null) { 3058 Rect padding = grid.getWorkspacePadding(CellLayout.PORTRAIT); 3059 int width = constrainedShortEdge - padding.left - padding.right; 3060 int height = constrainedLongEdge - padding.top - padding.bottom; 3061 mPortraitCellLayoutMetrics = new Rect(); 3062 mPortraitCellLayoutMetrics.set( 3063 grid.calculateCellWidth(width, countX), 3064 grid.calculateCellHeight(height, countY), 0, 0); 3065 } 3066 return mPortraitCellLayoutMetrics; 3067 } 3068 return null; 3069 } 3070 3071 public void onDragExit(DragObject d) { 3072 mDragEnforcer.onDragExit(); 3073 3074 // Here we store the final page that will be dropped to, if the workspace in fact 3075 // receives the drop 3076 if (mInScrollArea) { 3077 if (isPageMoving()) { 3078 // If the user drops while the page is scrolling, we should use that page as the 3079 // destination instead of the page that is being hovered over. 3080 mDropToLayout = (CellLayout) getPageAt(getNextPage()); 3081 } else { 3082 mDropToLayout = mDragOverlappingLayout; 3083 } 3084 } else { 3085 mDropToLayout = mDragTargetLayout; 3086 } 3087 3088 if (mDragMode == DRAG_MODE_CREATE_FOLDER) { 3089 mCreateUserFolderOnDrop = true; 3090 } else if (mDragMode == DRAG_MODE_ADD_TO_FOLDER) { 3091 mAddToExistingFolderOnDrop = true; 3092 } 3093 3094 // Reset the scroll area and previous drag target 3095 onResetScrollArea(); 3096 setCurrentDropLayout(null); 3097 setCurrentDragOverlappingLayout(null); 3098 3099 mSpringLoadedDragController.cancel(); 3100 3101 if (!mIsPageMoving) { 3102 hideOutlines(); 3103 } 3104 } 3105 3106 void setCurrentDropLayout(CellLayout layout) { 3107 if (mDragTargetLayout != null) { 3108 mDragTargetLayout.revertTempState(); 3109 mDragTargetLayout.onDragExit(); 3110 } 3111 mDragTargetLayout = layout; 3112 if (mDragTargetLayout != null) { 3113 mDragTargetLayout.onDragEnter(); 3114 } 3115 cleanupReorder(true); 3116 cleanupFolderCreation(); 3117 setCurrentDropOverCell(-1, -1); 3118 } 3119 3120 void setCurrentDragOverlappingLayout(CellLayout layout) { 3121 if (mDragOverlappingLayout != null) { 3122 mDragOverlappingLayout.setIsDragOverlapping(false); 3123 } 3124 mDragOverlappingLayout = layout; 3125 if (mDragOverlappingLayout != null) { 3126 mDragOverlappingLayout.setIsDragOverlapping(true); 3127 } 3128 invalidate(); 3129 } 3130 3131 void setCurrentDropOverCell(int x, int y) { 3132 if (x != mDragOverX || y != mDragOverY) { 3133 mDragOverX = x; 3134 mDragOverY = y; 3135 setDragMode(DRAG_MODE_NONE); 3136 } 3137 } 3138 3139 void setDragMode(int dragMode) { 3140 if (dragMode != mDragMode) { 3141 if (dragMode == DRAG_MODE_NONE) { 3142 cleanupAddToFolder(); 3143 // We don't want to cancel the re-order alarm every time the target cell changes 3144 // as this feels to slow / unresponsive. 3145 cleanupReorder(false); 3146 cleanupFolderCreation(); 3147 } else if (dragMode == DRAG_MODE_ADD_TO_FOLDER) { 3148 cleanupReorder(true); 3149 cleanupFolderCreation(); 3150 } else if (dragMode == DRAG_MODE_CREATE_FOLDER) { 3151 cleanupAddToFolder(); 3152 cleanupReorder(true); 3153 } else if (dragMode == DRAG_MODE_REORDER) { 3154 cleanupAddToFolder(); 3155 cleanupFolderCreation(); 3156 } 3157 mDragMode = dragMode; 3158 } 3159 } 3160 3161 private void cleanupFolderCreation() { 3162 if (mDragFolderRingAnimator != null) { 3163 mDragFolderRingAnimator.animateToNaturalState(); 3164 mDragFolderRingAnimator = null; 3165 } 3166 mFolderCreationAlarm.setOnAlarmListener(null); 3167 mFolderCreationAlarm.cancelAlarm(); 3168 } 3169 3170 private void cleanupAddToFolder() { 3171 if (mDragOverFolderIcon != null) { 3172 mDragOverFolderIcon.onDragExit(null); 3173 mDragOverFolderIcon = null; 3174 } 3175 } 3176 3177 private void cleanupReorder(boolean cancelAlarm) { 3178 // Any pending reorders are canceled 3179 if (cancelAlarm) { 3180 mReorderAlarm.cancelAlarm(); 3181 } 3182 mLastReorderX = -1; 3183 mLastReorderY = -1; 3184 } 3185 3186 /* 3187 * 3188 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 3189 * coordinate space. The argument xy is modified with the return result. 3190 * 3191 * if cachedInverseMatrix is not null, this method will just use that matrix instead of 3192 * computing it itself; we use this to avoid redundant matrix inversions in 3193 * findMatchingPageForDragOver 3194 * 3195 */ 3196 void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) { 3197 xy[0] = xy[0] - v.getLeft(); 3198 xy[1] = xy[1] - v.getTop(); 3199 } 3200 3201 boolean isPointInSelfOverHotseat(int x, int y, Rect r) { 3202 if (r == null) { 3203 r = new Rect(); 3204 } 3205 mTempPt[0] = x; 3206 mTempPt[1] = y; 3207 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 3208 3209 LauncherAppState app = LauncherAppState.getInstance(); 3210 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 3211 r = grid.getHotseatRect(); 3212 if (r.contains(mTempPt[0], mTempPt[1])) { 3213 return true; 3214 } 3215 return false; 3216 } 3217 3218 void mapPointFromSelfToHotseatLayout(Hotseat hotseat, float[] xy) { 3219 mTempPt[0] = (int) xy[0]; 3220 mTempPt[1] = (int) xy[1]; 3221 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 3222 mLauncher.getDragLayer().mapCoordInSelfToDescendent(hotseat.getLayout(), mTempPt); 3223 3224 xy[0] = mTempPt[0]; 3225 xy[1] = mTempPt[1]; 3226 } 3227 3228 /* 3229 * 3230 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 3231 * the parent View's coordinate space. The argument xy is modified with the return result. 3232 * 3233 */ 3234 void mapPointFromChildToSelf(View v, float[] xy) { 3235 xy[0] += v.getLeft(); 3236 xy[1] += v.getTop(); 3237 } 3238 3239 static private float squaredDistance(float[] point1, float[] point2) { 3240 float distanceX = point1[0] - point2[0]; 3241 float distanceY = point2[1] - point2[1]; 3242 return distanceX * distanceX + distanceY * distanceY; 3243 } 3244 3245 /* 3246 * 3247 * This method returns the CellLayout that is currently being dragged to. In order to drag 3248 * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second 3249 * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one 3250 * 3251 * Return null if no CellLayout is currently being dragged over 3252 * 3253 */ 3254 private CellLayout findMatchingPageForDragOver( 3255 DragView dragView, float originX, float originY, boolean exact) { 3256 // We loop through all the screens (ie CellLayouts) and see which ones overlap 3257 // with the item being dragged and then choose the one that's closest to the touch point 3258 final int screenCount = getChildCount(); 3259 CellLayout bestMatchingScreen = null; 3260 float smallestDistSoFar = Float.MAX_VALUE; 3261 3262 for (int i = 0; i < screenCount; i++) { 3263 // The custom content screen is not a valid drag over option 3264 if (mScreenOrder.get(i) == CUSTOM_CONTENT_SCREEN_ID) { 3265 continue; 3266 } 3267 3268 CellLayout cl = (CellLayout) getChildAt(i); 3269 3270 final float[] touchXy = {originX, originY}; 3271 // Transform the touch coordinates to the CellLayout's local coordinates 3272 // If the touch point is within the bounds of the cell layout, we can return immediately 3273 cl.getMatrix().invert(mTempInverseMatrix); 3274 mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix); 3275 3276 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 3277 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 3278 return cl; 3279 } 3280 3281 if (!exact) { 3282 // Get the center of the cell layout in screen coordinates 3283 final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates; 3284 cellLayoutCenter[0] = cl.getWidth()/2; 3285 cellLayoutCenter[1] = cl.getHeight()/2; 3286 mapPointFromChildToSelf(cl, cellLayoutCenter); 3287 3288 touchXy[0] = originX; 3289 touchXy[1] = originY; 3290 3291 // Calculate the distance between the center of the CellLayout 3292 // and the touch point 3293 float dist = squaredDistance(touchXy, cellLayoutCenter); 3294 3295 if (dist < smallestDistSoFar) { 3296 smallestDistSoFar = dist; 3297 bestMatchingScreen = cl; 3298 } 3299 } 3300 } 3301 return bestMatchingScreen; 3302 } 3303 3304 // This is used to compute the visual center of the dragView. This point is then 3305 // used to visualize drop locations and determine where to drop an item. The idea is that 3306 // the visual center represents the user's interpretation of where the item is, and hence 3307 // is the appropriate point to use when determining drop location. 3308 private float[] getDragViewVisualCenter(int x, int y, int xOffset, int yOffset, 3309 DragView dragView, float[] recycle) { 3310 float res[]; 3311 if (recycle == null) { 3312 res = new float[2]; 3313 } else { 3314 res = recycle; 3315 } 3316 3317 // First off, the drag view has been shifted in a way that is not represented in the 3318 // x and y values or the x/yOffsets. Here we account for that shift. 3319 x += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetX); 3320 y += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 3321 3322 // These represent the visual top and left of drag view if a dragRect was provided. 3323 // If a dragRect was not provided, then they correspond to the actual view left and 3324 // top, as the dragRect is in that case taken to be the entire dragView. 3325 // R.dimen.dragViewOffsetY. 3326 int left = x - xOffset; 3327 int top = y - yOffset; 3328 3329 // In order to find the visual center, we shift by half the dragRect 3330 res[0] = left + dragView.getDragRegion().width() / 2; 3331 res[1] = top + dragView.getDragRegion().height() / 2; 3332 3333 return res; 3334 } 3335 3336 private boolean isDragWidget(DragObject d) { 3337 return (d.dragInfo instanceof LauncherAppWidgetInfo || 3338 d.dragInfo instanceof PendingAddWidgetInfo); 3339 } 3340 private boolean isExternalDragWidget(DragObject d) { 3341 return d.dragSource != this && isDragWidget(d); 3342 } 3343 3344 public void onDragOver(DragObject d) { 3345 // Skip drag over events while we are dragging over side pages 3346 if (mInScrollArea || mIsSwitchingState || mState == State.SMALL) return; 3347 3348 Rect r = new Rect(); 3349 CellLayout layout = null; 3350 ItemInfo item = (ItemInfo) d.dragInfo; 3351 3352 // Ensure that we have proper spans for the item that we are dropping 3353 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 3354 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 3355 d.dragView, mDragViewVisualCenter); 3356 3357 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 3358 // Identify whether we have dragged over a side page 3359 if (isSmall()) { 3360 if (mLauncher.getHotseat() != null && !isExternalDragWidget(d)) { 3361 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3362 layout = mLauncher.getHotseat().getLayout(); 3363 } 3364 } 3365 if (layout == null) { 3366 layout = findMatchingPageForDragOver(d.dragView, d.x, d.y, false); 3367 } 3368 if (layout != mDragTargetLayout) { 3369 setCurrentDropLayout(layout); 3370 setCurrentDragOverlappingLayout(layout); 3371 3372 boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED); 3373 if (isInSpringLoadedMode) { 3374 if (mLauncher.isHotseatLayout(layout)) { 3375 mSpringLoadedDragController.cancel(); 3376 } else { 3377 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 3378 } 3379 } 3380 } 3381 } else { 3382 // Test to see if we are over the hotseat otherwise just use the current page 3383 if (mLauncher.getHotseat() != null && !isDragWidget(d)) { 3384 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3385 layout = mLauncher.getHotseat().getLayout(); 3386 } 3387 } 3388 if (layout == null) { 3389 layout = getCurrentDropLayout(); 3390 } 3391 if (layout != mDragTargetLayout) { 3392 setCurrentDropLayout(layout); 3393 setCurrentDragOverlappingLayout(layout); 3394 } 3395 } 3396 3397 // Handle the drag over 3398 if (mDragTargetLayout != null) { 3399 // We want the point to be mapped to the dragTarget. 3400 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 3401 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 3402 } else { 3403 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 3404 } 3405 3406 ItemInfo info = (ItemInfo) d.dragInfo; 3407 3408 int minSpanX = item.spanX; 3409 int minSpanY = item.spanY; 3410 if (item.minSpanX > 0 && item.minSpanY > 0) { 3411 minSpanX = item.minSpanX; 3412 minSpanY = item.minSpanY; 3413 } 3414 3415 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3416 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, 3417 mDragTargetLayout, mTargetCell); 3418 int reorderX = mTargetCell[0]; 3419 int reorderY = mTargetCell[1]; 3420 3421 setCurrentDropOverCell(mTargetCell[0], mTargetCell[1]); 3422 3423 float targetCellDistance = mDragTargetLayout.getDistanceFromCell( 3424 mDragViewVisualCenter[0], mDragViewVisualCenter[1], mTargetCell); 3425 3426 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], 3427 mTargetCell[1]); 3428 3429 manageFolderFeedback(info, mDragTargetLayout, mTargetCell, 3430 targetCellDistance, dragOverView); 3431 3432 boolean nearestDropOccupied = mDragTargetLayout.isNearestDropLocationOccupied((int) 3433 mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], item.spanX, 3434 item.spanY, child, mTargetCell); 3435 3436 if (!nearestDropOccupied) { 3437 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3438 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3439 mTargetCell[0], mTargetCell[1], item.spanX, item.spanY, false, 3440 d.dragView.getDragVisualizeOffset(), d.dragView.getDragRegion()); 3441 } else if ((mDragMode == DRAG_MODE_NONE || mDragMode == DRAG_MODE_REORDER) 3442 && !mReorderAlarm.alarmPending() && (mLastReorderX != reorderX || 3443 mLastReorderY != reorderY)) { 3444 3445 // Otherwise, if we aren't adding to or creating a folder and there's no pending 3446 // reorder, then we schedule a reorder 3447 ReorderAlarmListener listener = new ReorderAlarmListener(mDragViewVisualCenter, 3448 minSpanX, minSpanY, item.spanX, item.spanY, d.dragView, child); 3449 mReorderAlarm.setOnAlarmListener(listener); 3450 mReorderAlarm.setAlarm(REORDER_TIMEOUT); 3451 } 3452 3453 if (mDragMode == DRAG_MODE_CREATE_FOLDER || mDragMode == DRAG_MODE_ADD_TO_FOLDER || 3454 !nearestDropOccupied) { 3455 if (mDragTargetLayout != null) { 3456 mDragTargetLayout.revertTempState(); 3457 } 3458 } 3459 } 3460 } 3461 3462 private void manageFolderFeedback(ItemInfo info, CellLayout targetLayout, 3463 int[] targetCell, float distance, View dragOverView) { 3464 boolean userFolderPending = willCreateUserFolder(info, targetLayout, targetCell, distance, 3465 false); 3466 3467 if (mDragMode == DRAG_MODE_NONE && userFolderPending && 3468 !mFolderCreationAlarm.alarmPending()) { 3469 mFolderCreationAlarm.setOnAlarmListener(new 3470 FolderCreationAlarmListener(targetLayout, targetCell[0], targetCell[1])); 3471 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 3472 return; 3473 } 3474 3475 boolean willAddToFolder = 3476 willAddToExistingUserFolder(info, targetLayout, targetCell, distance); 3477 3478 if (willAddToFolder && mDragMode == DRAG_MODE_NONE) { 3479 mDragOverFolderIcon = ((FolderIcon) dragOverView); 3480 mDragOverFolderIcon.onDragEnter(info); 3481 if (targetLayout != null) { 3482 targetLayout.clearDragOutlines(); 3483 } 3484 setDragMode(DRAG_MODE_ADD_TO_FOLDER); 3485 return; 3486 } 3487 3488 if (mDragMode == DRAG_MODE_ADD_TO_FOLDER && !willAddToFolder) { 3489 setDragMode(DRAG_MODE_NONE); 3490 } 3491 if (mDragMode == DRAG_MODE_CREATE_FOLDER && !userFolderPending) { 3492 setDragMode(DRAG_MODE_NONE); 3493 } 3494 3495 return; 3496 } 3497 3498 class FolderCreationAlarmListener implements OnAlarmListener { 3499 CellLayout layout; 3500 int cellX; 3501 int cellY; 3502 3503 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 3504 this.layout = layout; 3505 this.cellX = cellX; 3506 this.cellY = cellY; 3507 } 3508 3509 public void onAlarm(Alarm alarm) { 3510 if (mDragFolderRingAnimator != null) { 3511 // This shouldn't happen ever, but just in case, make sure we clean up the mess. 3512 mDragFolderRingAnimator.animateToNaturalState(); 3513 } 3514 mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null); 3515 mDragFolderRingAnimator.setCell(cellX, cellY); 3516 mDragFolderRingAnimator.setCellLayout(layout); 3517 mDragFolderRingAnimator.animateToAcceptState(); 3518 layout.showFolderAccept(mDragFolderRingAnimator); 3519 layout.clearDragOutlines(); 3520 setDragMode(DRAG_MODE_CREATE_FOLDER); 3521 } 3522 } 3523 3524 class ReorderAlarmListener implements OnAlarmListener { 3525 float[] dragViewCenter; 3526 int minSpanX, minSpanY, spanX, spanY; 3527 DragView dragView; 3528 View child; 3529 3530 public ReorderAlarmListener(float[] dragViewCenter, int minSpanX, int minSpanY, int spanX, 3531 int spanY, DragView dragView, View child) { 3532 this.dragViewCenter = dragViewCenter; 3533 this.minSpanX = minSpanX; 3534 this.minSpanY = minSpanY; 3535 this.spanX = spanX; 3536 this.spanY = spanY; 3537 this.child = child; 3538 this.dragView = dragView; 3539 } 3540 3541 public void onAlarm(Alarm alarm) { 3542 int[] resultSpan = new int[2]; 3543 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3544 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, mDragTargetLayout, 3545 mTargetCell); 3546 mLastReorderX = mTargetCell[0]; 3547 mLastReorderY = mTargetCell[1]; 3548 3549 mTargetCell = mDragTargetLayout.createArea((int) mDragViewVisualCenter[0], 3550 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 3551 child, mTargetCell, resultSpan, CellLayout.MODE_DRAG_OVER); 3552 3553 if (mTargetCell[0] < 0 || mTargetCell[1] < 0) { 3554 mDragTargetLayout.revertTempState(); 3555 } else { 3556 setDragMode(DRAG_MODE_REORDER); 3557 } 3558 3559 boolean resize = resultSpan[0] != spanX || resultSpan[1] != spanY; 3560 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3561 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3562 mTargetCell[0], mTargetCell[1], resultSpan[0], resultSpan[1], resize, 3563 dragView.getDragVisualizeOffset(), dragView.getDragRegion()); 3564 } 3565 } 3566 3567 @Override 3568 public void getHitRectRelativeToDragLayer(Rect outRect) { 3569 // We want the workspace to have the whole area of the display (it will find the correct 3570 // cell layout to drop to in the existing drag/drop logic. 3571 mLauncher.getDragLayer().getDescendantRectRelativeToSelf(this, outRect); 3572 } 3573 3574 /** 3575 * Add the item specified by dragInfo to the given layout. 3576 * @return true if successful 3577 */ 3578 public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) { 3579 if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) { 3580 onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false); 3581 return true; 3582 } 3583 mLauncher.showOutOfSpaceMessage(mLauncher.isHotseatLayout(layout)); 3584 return false; 3585 } 3586 3587 private void onDropExternal(int[] touchXY, Object dragInfo, 3588 CellLayout cellLayout, boolean insertAtFirst) { 3589 onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null); 3590 } 3591 3592 /** 3593 * Drop an item that didn't originate on one of the workspace screens. 3594 * It may have come from Launcher (e.g. from all apps or customize), or it may have 3595 * come from another app altogether. 3596 * 3597 * NOTE: This can also be called when we are outside of a drag event, when we want 3598 * to add an item to one of the workspace screens. 3599 */ 3600 private void onDropExternal(final int[] touchXY, final Object dragInfo, 3601 final CellLayout cellLayout, boolean insertAtFirst, DragObject d) { 3602 final Runnable exitSpringLoadedRunnable = new Runnable() { 3603 @Override 3604 public void run() { 3605 removeExtraEmptyScreen(false, new Runnable() { 3606 @Override 3607 public void run() { 3608 mLauncher.exitSpringLoadedDragModeDelayed(true, 3609 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, null); 3610 } 3611 }); 3612 } 3613 }; 3614 3615 ItemInfo info = (ItemInfo) dragInfo; 3616 int spanX = info.spanX; 3617 int spanY = info.spanY; 3618 if (mDragInfo != null) { 3619 spanX = mDragInfo.spanX; 3620 spanY = mDragInfo.spanY; 3621 } 3622 3623 final long container = mLauncher.isHotseatLayout(cellLayout) ? 3624 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3625 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3626 final long screenId = getIdForScreen(cellLayout); 3627 if (!mLauncher.isHotseatLayout(cellLayout) 3628 && screenId != getScreenIdForPageIndex(mCurrentPage) 3629 && mState != State.SPRING_LOADED) { 3630 snapToScreenId(screenId, null); 3631 } 3632 3633 if (info instanceof PendingAddItemInfo) { 3634 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo; 3635 3636 boolean findNearestVacantCell = true; 3637 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) { 3638 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3639 cellLayout, mTargetCell); 3640 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3641 mDragViewVisualCenter[1], mTargetCell); 3642 if (willCreateUserFolder((ItemInfo) d.dragInfo, cellLayout, mTargetCell, 3643 distance, true) || willAddToExistingUserFolder((ItemInfo) d.dragInfo, 3644 cellLayout, mTargetCell, distance)) { 3645 findNearestVacantCell = false; 3646 } 3647 } 3648 3649 final ItemInfo item = (ItemInfo) d.dragInfo; 3650 boolean updateWidgetSize = false; 3651 if (findNearestVacantCell) { 3652 int minSpanX = item.spanX; 3653 int minSpanY = item.spanY; 3654 if (item.minSpanX > 0 && item.minSpanY > 0) { 3655 minSpanX = item.minSpanX; 3656 minSpanY = item.minSpanY; 3657 } 3658 int[] resultSpan = new int[2]; 3659 mTargetCell = cellLayout.createArea((int) mDragViewVisualCenter[0], 3660 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, info.spanX, info.spanY, 3661 null, mTargetCell, resultSpan, CellLayout.MODE_ON_DROP_EXTERNAL); 3662 3663 if (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY) { 3664 updateWidgetSize = true; 3665 } 3666 item.spanX = resultSpan[0]; 3667 item.spanY = resultSpan[1]; 3668 } 3669 3670 Runnable onAnimationCompleteRunnable = new Runnable() { 3671 @Override 3672 public void run() { 3673 // When dragging and dropping from customization tray, we deal with creating 3674 // widgets/shortcuts/folders in a slightly different way 3675 switch (pendingInfo.itemType) { 3676 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 3677 int span[] = new int[2]; 3678 span[0] = item.spanX; 3679 span[1] = item.spanY; 3680 mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) pendingInfo, 3681 container, screenId, mTargetCell, span, null); 3682 break; 3683 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3684 mLauncher.processShortcutFromDrop(pendingInfo.componentName, 3685 container, screenId, mTargetCell, null); 3686 break; 3687 default: 3688 throw new IllegalStateException("Unknown item type: " + 3689 pendingInfo.itemType); 3690 } 3691 } 3692 }; 3693 View finalView = pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 3694 ? ((PendingAddWidgetInfo) pendingInfo).boundWidget : null; 3695 3696 if (finalView instanceof AppWidgetHostView && updateWidgetSize) { 3697 AppWidgetHostView awhv = (AppWidgetHostView) finalView; 3698 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, item.spanX, 3699 item.spanY); 3700 } 3701 3702 int animationStyle = ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3703 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && 3704 ((PendingAddWidgetInfo) pendingInfo).info.configure != null) { 3705 animationStyle = ANIMATE_INTO_POSITION_AND_REMAIN; 3706 } 3707 animateWidgetDrop(info, cellLayout, d.dragView, onAnimationCompleteRunnable, 3708 animationStyle, finalView, true); 3709 } else { 3710 // This is for other drag/drop cases, like dragging from All Apps 3711 View view = null; 3712 3713 switch (info.itemType) { 3714 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 3715 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3716 if (info.container == NO_ID && info instanceof AppInfo) { 3717 // Came from all apps -- make a copy 3718 info = new ShortcutInfo((AppInfo) info); 3719 } 3720 view = mLauncher.createShortcut(R.layout.application, cellLayout, 3721 (ShortcutInfo) info); 3722 break; 3723 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 3724 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 3725 (FolderInfo) info, mIconCache); 3726 break; 3727 default: 3728 throw new IllegalStateException("Unknown item type: " + info.itemType); 3729 } 3730 3731 // First we find the cell nearest to point at which the item is 3732 // dropped, without any consideration to whether there is an item there. 3733 if (touchXY != null) { 3734 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3735 cellLayout, mTargetCell); 3736 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3737 mDragViewVisualCenter[1], mTargetCell); 3738 d.postAnimationRunnable = exitSpringLoadedRunnable; 3739 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, distance, 3740 true, d.dragView, d.postAnimationRunnable)) { 3741 return; 3742 } 3743 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, distance, d, 3744 true)) { 3745 return; 3746 } 3747 } 3748 3749 if (touchXY != null) { 3750 // when dragging and dropping, just find the closest free spot 3751 mTargetCell = cellLayout.createArea((int) mDragViewVisualCenter[0], 3752 (int) mDragViewVisualCenter[1], 1, 1, 1, 1, 3753 null, mTargetCell, null, CellLayout.MODE_ON_DROP_EXTERNAL); 3754 } else { 3755 cellLayout.findCellForSpan(mTargetCell, 1, 1); 3756 } 3757 addInScreen(view, container, screenId, mTargetCell[0], mTargetCell[1], info.spanX, 3758 info.spanY, insertAtFirst); 3759 cellLayout.onDropChild(view); 3760 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams(); 3761 cellLayout.getShortcutsAndWidgets().measureChild(view); 3762 3763 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, 3764 lp.cellX, lp.cellY); 3765 3766 if (d.dragView != null) { 3767 // We wrap the animation call in the temporary set and reset of the current 3768 // cellLayout to its final transform -- this means we animate the drag view to 3769 // the correct final location. 3770 setFinalTransitionTransform(cellLayout); 3771 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 3772 exitSpringLoadedRunnable, this); 3773 resetTransitionTransform(cellLayout); 3774 } 3775 } 3776 } 3777 3778 public Bitmap createWidgetBitmap(ItemInfo widgetInfo, View layout) { 3779 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(widgetInfo.spanX, 3780 widgetInfo.spanY, widgetInfo, false); 3781 int visibility = layout.getVisibility(); 3782 layout.setVisibility(VISIBLE); 3783 3784 int width = MeasureSpec.makeMeasureSpec(unScaledSize[0], MeasureSpec.EXACTLY); 3785 int height = MeasureSpec.makeMeasureSpec(unScaledSize[1], MeasureSpec.EXACTLY); 3786 Bitmap b = Bitmap.createBitmap(unScaledSize[0], unScaledSize[1], 3787 Bitmap.Config.ARGB_8888); 3788 Canvas c = new Canvas(b); 3789 3790 layout.measure(width, height); 3791 layout.layout(0, 0, unScaledSize[0], unScaledSize[1]); 3792 layout.draw(c); 3793 c.setBitmap(null); 3794 layout.setVisibility(visibility); 3795 return b; 3796 } 3797 3798 private void getFinalPositionForDropAnimation(int[] loc, float[] scaleXY, 3799 DragView dragView, CellLayout layout, ItemInfo info, int[] targetCell, 3800 boolean external, boolean scale) { 3801 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 3802 // location and size on the home screen. 3803 int spanX = info.spanX; 3804 int spanY = info.spanY; 3805 3806 Rect r = estimateItemPosition(layout, info, targetCell[0], targetCell[1], spanX, spanY); 3807 loc[0] = r.left; 3808 loc[1] = r.top; 3809 3810 setFinalTransitionTransform(layout); 3811 float cellLayoutScale = 3812 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(layout, loc, true); 3813 resetTransitionTransform(layout); 3814 3815 float dragViewScaleX; 3816 float dragViewScaleY; 3817 if (scale) { 3818 dragViewScaleX = (1.0f * r.width()) / dragView.getMeasuredWidth(); 3819 dragViewScaleY = (1.0f * r.height()) / dragView.getMeasuredHeight(); 3820 } else { 3821 dragViewScaleX = 1f; 3822 dragViewScaleY = 1f; 3823 } 3824 3825 // The animation will scale the dragView about its center, so we need to center about 3826 // the final location. 3827 loc[0] -= (dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2; 3828 loc[1] -= (dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 3829 3830 scaleXY[0] = dragViewScaleX * cellLayoutScale; 3831 scaleXY[1] = dragViewScaleY * cellLayoutScale; 3832 } 3833 3834 public void animateWidgetDrop(ItemInfo info, CellLayout cellLayout, DragView dragView, 3835 final Runnable onCompleteRunnable, int animationType, final View finalView, 3836 boolean external) { 3837 Rect from = new Rect(); 3838 mLauncher.getDragLayer().getViewRectRelativeToSelf(dragView, from); 3839 3840 int[] finalPos = new int[2]; 3841 float scaleXY[] = new float[2]; 3842 boolean scalePreview = !(info instanceof PendingAddShortcutInfo); 3843 getFinalPositionForDropAnimation(finalPos, scaleXY, dragView, cellLayout, info, mTargetCell, 3844 external, scalePreview); 3845 3846 Resources res = mLauncher.getResources(); 3847 final int duration = res.getInteger(R.integer.config_dropAnimMaxDuration) - 200; 3848 3849 // In the case where we've prebound the widget, we remove it from the DragLayer 3850 if (finalView instanceof AppWidgetHostView && external) { 3851 Log.d(TAG, "6557954 Animate widget drop, final view is appWidgetHostView"); 3852 mLauncher.getDragLayer().removeView(finalView); 3853 } 3854 if ((animationType == ANIMATE_INTO_POSITION_AND_RESIZE || external) && finalView != null) { 3855 Bitmap crossFadeBitmap = createWidgetBitmap(info, finalView); 3856 dragView.setCrossFadeBitmap(crossFadeBitmap); 3857 dragView.crossFade((int) (duration * 0.8f)); 3858 } else if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && external) { 3859 scaleXY[0] = scaleXY[1] = Math.min(scaleXY[0], scaleXY[1]); 3860 } 3861 3862 DragLayer dragLayer = mLauncher.getDragLayer(); 3863 if (animationType == CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION) { 3864 mLauncher.getDragLayer().animateViewIntoPosition(dragView, finalPos, 0f, 0.1f, 0.1f, 3865 DragLayer.ANIMATION_END_DISAPPEAR, onCompleteRunnable, duration); 3866 } else { 3867 int endStyle; 3868 if (animationType == ANIMATE_INTO_POSITION_AND_REMAIN) { 3869 endStyle = DragLayer.ANIMATION_END_REMAIN_VISIBLE; 3870 } else { 3871 endStyle = DragLayer.ANIMATION_END_DISAPPEAR;; 3872 } 3873 3874 Runnable onComplete = new Runnable() { 3875 @Override 3876 public void run() { 3877 if (finalView != null) { 3878 finalView.setVisibility(VISIBLE); 3879 } 3880 if (onCompleteRunnable != null) { 3881 onCompleteRunnable.run(); 3882 } 3883 } 3884 }; 3885 dragLayer.animateViewIntoPosition(dragView, from.left, from.top, finalPos[0], 3886 finalPos[1], 1, 1, 1, scaleXY[0], scaleXY[1], onComplete, endStyle, 3887 duration, this); 3888 } 3889 } 3890 3891 public void setFinalTransitionTransform(CellLayout layout) { 3892 if (isSwitchingState()) { 3893 mCurrentScale = getScaleX(); 3894 setScaleX(mNewScale); 3895 setScaleY(mNewScale); 3896 } 3897 } 3898 public void resetTransitionTransform(CellLayout layout) { 3899 if (isSwitchingState()) { 3900 setScaleX(mCurrentScale); 3901 setScaleY(mCurrentScale); 3902 } 3903 } 3904 3905 /** 3906 * Return the current {@link CellLayout}, correctly picking the destination 3907 * screen while a scroll is in progress. 3908 */ 3909 public CellLayout getCurrentDropLayout() { 3910 return (CellLayout) getChildAt(getNextPage()); 3911 } 3912 3913 /** 3914 * Return the current CellInfo describing our current drag; this method exists 3915 * so that Launcher can sync this object with the correct info when the activity is created/ 3916 * destroyed 3917 * 3918 */ 3919 public CellLayout.CellInfo getDragInfo() { 3920 return mDragInfo; 3921 } 3922 3923 public int getRestorePage() { 3924 return getNextPage() - numCustomPages(); 3925 } 3926 3927 /** 3928 * Calculate the nearest cell where the given object would be dropped. 3929 * 3930 * pixelX and pixelY should be in the coordinate system of layout 3931 */ 3932 private int[] findNearestArea(int pixelX, int pixelY, 3933 int spanX, int spanY, CellLayout layout, int[] recycle) { 3934 return layout.findNearestArea( 3935 pixelX, pixelY, spanX, spanY, recycle); 3936 } 3937 3938 void setup(DragController dragController) { 3939 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 3940 mDragController = dragController; 3941 3942 // hardware layers on children are enabled on startup, but should be disabled until 3943 // needed 3944 updateChildrenLayersEnabled(false); 3945 setWallpaperDimension(); 3946 } 3947 3948 /** 3949 * Called at the end of a drag which originated on the workspace. 3950 */ 3951 public void onDropCompleted(final View target, final DragObject d, 3952 final boolean isFlingToDelete, final boolean success) { 3953 if (mDeferDropAfterUninstall) { 3954 mDeferredAction = new Runnable() { 3955 public void run() { 3956 onDropCompleted(target, d, isFlingToDelete, success); 3957 mDeferredAction = null; 3958 } 3959 }; 3960 return; 3961 } 3962 3963 boolean beingCalledAfterUninstall = mDeferredAction != null; 3964 3965 if (success && !(beingCalledAfterUninstall && !mUninstallSuccessful)) { 3966 if (target != this && mDragInfo != null) { 3967 CellLayout parentCell = getParentCellLayoutForView(mDragInfo.cell); 3968 if (parentCell != null) { 3969 parentCell.removeView(mDragInfo.cell); 3970 } 3971 if (mDragInfo.cell instanceof DropTarget) { 3972 mDragController.removeDropTarget((DropTarget) mDragInfo.cell); 3973 } 3974 // If we move the item to anything not on the Workspace, check if any empty 3975 // screens need to be removed. If we dropped back on the workspace, this will 3976 // be done post drop animation. 3977 removeExtraEmptyScreen(true, null, 0, true); 3978 } 3979 } else if (mDragInfo != null) { 3980 CellLayout cellLayout; 3981 if (mLauncher.isHotseatLayout(target)) { 3982 cellLayout = mLauncher.getHotseat().getLayout(); 3983 } else { 3984 cellLayout = getScreenWithId(mDragInfo.screenId); 3985 } 3986 cellLayout.onDropChild(mDragInfo.cell); 3987 } 3988 if ((d.cancelled || (beingCalledAfterUninstall && !mUninstallSuccessful)) 3989 && mDragInfo.cell != null) { 3990 mDragInfo.cell.setVisibility(VISIBLE); 3991 } 3992 mDragOutline = null; 3993 mDragInfo = null; 3994 } 3995 3996 public void deferCompleteDropAfterUninstallActivity() { 3997 mDeferDropAfterUninstall = true; 3998 } 3999 4000 /// maybe move this into a smaller part 4001 public void onUninstallActivityReturned(boolean success) { 4002 mDeferDropAfterUninstall = false; 4003 mUninstallSuccessful = success; 4004 if (mDeferredAction != null) { 4005 mDeferredAction.run(); 4006 } 4007 } 4008 4009 void updateItemLocationsInDatabase(CellLayout cl) { 4010 int count = cl.getShortcutsAndWidgets().getChildCount(); 4011 4012 long screenId = getIdForScreen(cl); 4013 int container = Favorites.CONTAINER_DESKTOP; 4014 4015 if (mLauncher.isHotseatLayout(cl)) { 4016 screenId = -1; 4017 container = Favorites.CONTAINER_HOTSEAT; 4018 } 4019 4020 for (int i = 0; i < count; i++) { 4021 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4022 ItemInfo info = (ItemInfo) v.getTag(); 4023 // Null check required as the AllApps button doesn't have an item info 4024 if (info != null && info.requiresDbUpdate) { 4025 info.requiresDbUpdate = false; 4026 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, info.cellX, 4027 info.cellY, info.spanX, info.spanY); 4028 } 4029 } 4030 } 4031 4032 ArrayList<ComponentName> getUniqueComponents(boolean stripDuplicates, ArrayList<ComponentName> duplicates) { 4033 ArrayList<ComponentName> uniqueIntents = new ArrayList<ComponentName>(); 4034 getUniqueIntents((CellLayout) mLauncher.getHotseat().getLayout(), uniqueIntents, duplicates, false); 4035 int count = getChildCount(); 4036 for (int i = 0; i < count; i++) { 4037 CellLayout cl = (CellLayout) getChildAt(i); 4038 getUniqueIntents(cl, uniqueIntents, duplicates, false); 4039 } 4040 return uniqueIntents; 4041 } 4042 4043 void getUniqueIntents(CellLayout cl, ArrayList<ComponentName> uniqueIntents, 4044 ArrayList<ComponentName> duplicates, boolean stripDuplicates) { 4045 int count = cl.getShortcutsAndWidgets().getChildCount(); 4046 4047 ArrayList<View> children = new ArrayList<View>(); 4048 for (int i = 0; i < count; i++) { 4049 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4050 children.add(v); 4051 } 4052 4053 for (int i = 0; i < count; i++) { 4054 View v = children.get(i); 4055 ItemInfo info = (ItemInfo) v.getTag(); 4056 // Null check required as the AllApps button doesn't have an item info 4057 if (info instanceof ShortcutInfo) { 4058 ShortcutInfo si = (ShortcutInfo) info; 4059 ComponentName cn = si.intent.getComponent(); 4060 4061 Uri dataUri = si.intent.getData(); 4062 // If dataUri is not null / empty or if this component isn't one that would 4063 // have previously showed up in the AllApps list, then this is a widget-type 4064 // shortcut, so ignore it. 4065 if (dataUri != null && !dataUri.equals(Uri.EMPTY)) { 4066 continue; 4067 } 4068 4069 if (!uniqueIntents.contains(cn)) { 4070 uniqueIntents.add(cn); 4071 } else { 4072 if (stripDuplicates) { 4073 cl.removeViewInLayout(v); 4074 LauncherModel.deleteItemFromDatabase(mLauncher, si); 4075 } 4076 if (duplicates != null) { 4077 duplicates.add(cn); 4078 } 4079 } 4080 } 4081 if (v instanceof FolderIcon) { 4082 FolderIcon fi = (FolderIcon) v; 4083 ArrayList<View> items = fi.getFolder().getItemsInReadingOrder(); 4084 for (int j = 0; j < items.size(); j++) { 4085 if (items.get(j).getTag() instanceof ShortcutInfo) { 4086 ShortcutInfo si = (ShortcutInfo) items.get(j).getTag(); 4087 ComponentName cn = si.intent.getComponent(); 4088 4089 Uri dataUri = si.intent.getData(); 4090 // If dataUri is not null / empty or if this component isn't one that would 4091 // have previously showed up in the AllApps list, then this is a widget-type 4092 // shortcut, so ignore it. 4093 if (dataUri != null && !dataUri.equals(Uri.EMPTY)) { 4094 continue; 4095 } 4096 4097 if (!uniqueIntents.contains(cn)) { 4098 uniqueIntents.add(cn); 4099 } else { 4100 if (stripDuplicates) { 4101 fi.getFolderInfo().remove(si); 4102 LauncherModel.deleteItemFromDatabase(mLauncher, si); 4103 } 4104 if (duplicates != null) { 4105 duplicates.add(cn); 4106 } 4107 } 4108 } 4109 } 4110 } 4111 } 4112 } 4113 4114 void saveWorkspaceToDb() { 4115 saveWorkspaceScreenToDb((CellLayout) mLauncher.getHotseat().getLayout()); 4116 int count = getChildCount(); 4117 for (int i = 0; i < count; i++) { 4118 CellLayout cl = (CellLayout) getChildAt(i); 4119 saveWorkspaceScreenToDb(cl); 4120 } 4121 } 4122 4123 void saveWorkspaceScreenToDb(CellLayout cl) { 4124 int count = cl.getShortcutsAndWidgets().getChildCount(); 4125 4126 long screenId = getIdForScreen(cl); 4127 int container = Favorites.CONTAINER_DESKTOP; 4128 4129 Hotseat hotseat = mLauncher.getHotseat(); 4130 if (mLauncher.isHotseatLayout(cl)) { 4131 screenId = -1; 4132 container = Favorites.CONTAINER_HOTSEAT; 4133 } 4134 4135 for (int i = 0; i < count; i++) { 4136 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4137 ItemInfo info = (ItemInfo) v.getTag(); 4138 // Null check required as the AllApps button doesn't have an item info 4139 if (info != null) { 4140 int cellX = info.cellX; 4141 int cellY = info.cellY; 4142 if (container == Favorites.CONTAINER_HOTSEAT) { 4143 cellX = hotseat.getCellXFromOrder((int) info.screenId); 4144 cellY = hotseat.getCellYFromOrder((int) info.screenId); 4145 } 4146 LauncherModel.addItemToDatabase(mLauncher, info, container, screenId, cellX, 4147 cellY, false); 4148 } 4149 if (v instanceof FolderIcon) { 4150 FolderIcon fi = (FolderIcon) v; 4151 fi.getFolder().addItemLocationsInDatabase(); 4152 } 4153 } 4154 } 4155 4156 @Override 4157 public boolean supportsFlingToDelete() { 4158 return true; 4159 } 4160 4161 @Override 4162 public void onFlingToDelete(DragObject d, int x, int y, PointF vec) { 4163 // Do nothing 4164 } 4165 4166 @Override 4167 public void onFlingToDeleteCompleted() { 4168 // Do nothing 4169 } 4170 4171 public boolean isDropEnabled() { 4172 return true; 4173 } 4174 4175 @Override 4176 protected void onRestoreInstanceState(Parcelable state) { 4177 super.onRestoreInstanceState(state); 4178 Launcher.setScreen(mCurrentPage); 4179 } 4180 4181 @Override 4182 protected void dispatchRestoreInstanceState(SparseArray<Parcelable> container) { 4183 // We don't dispatch restoreInstanceState to our children using this code path. 4184 // Some pages will be restored immediately as their items are bound immediately, and 4185 // others we will need to wait until after their items are bound. 4186 mSavedStates = container; 4187 } 4188 4189 public void restoreInstanceStateForChild(int child) { 4190 if (mSavedStates != null) { 4191 mRestoredPages.add(child); 4192 CellLayout cl = (CellLayout) getChildAt(child); 4193 cl.restoreInstanceState(mSavedStates); 4194 } 4195 } 4196 4197 public void restoreInstanceStateForRemainingPages() { 4198 int count = getChildCount(); 4199 for (int i = 0; i < count; i++) { 4200 if (!mRestoredPages.contains(i)) { 4201 restoreInstanceStateForChild(i); 4202 } 4203 } 4204 mRestoredPages.clear(); 4205 mSavedStates = null; 4206 } 4207 4208 @Override 4209 public void scrollLeft() { 4210 if (!isSmall() && !mIsSwitchingState) { 4211 super.scrollLeft(); 4212 } 4213 Folder openFolder = getOpenFolder(); 4214 if (openFolder != null) { 4215 openFolder.completeDragExit(); 4216 } 4217 } 4218 4219 @Override 4220 public void scrollRight() { 4221 if (!isSmall() && !mIsSwitchingState) { 4222 super.scrollRight(); 4223 } 4224 Folder openFolder = getOpenFolder(); 4225 if (openFolder != null) { 4226 openFolder.completeDragExit(); 4227 } 4228 } 4229 4230 @Override 4231 public boolean onEnterScrollArea(int x, int y, int direction) { 4232 // Ignore the scroll area if we are dragging over the hot seat 4233 boolean isPortrait = !LauncherAppState.isScreenLandscape(getContext()); 4234 if (mLauncher.getHotseat() != null && isPortrait) { 4235 Rect r = new Rect(); 4236 mLauncher.getHotseat().getHitRect(r); 4237 if (r.contains(x, y)) { 4238 return false; 4239 } 4240 } 4241 4242 boolean result = false; 4243 if (!isSmall() && !mIsSwitchingState && getOpenFolder() == null) { 4244 mInScrollArea = true; 4245 4246 final int page = getNextPage() + 4247 (direction == DragController.SCROLL_LEFT ? -1 : 1); 4248 // We always want to exit the current layout to ensure parity of enter / exit 4249 setCurrentDropLayout(null); 4250 4251 if (0 <= page && page < getChildCount()) { 4252 // Ensure that we are not dragging over to the custom content screen 4253 if (getScreenIdForPageIndex(page) == CUSTOM_CONTENT_SCREEN_ID) { 4254 return false; 4255 } 4256 4257 CellLayout layout = (CellLayout) getChildAt(page); 4258 setCurrentDragOverlappingLayout(layout); 4259 4260 // Workspace is responsible for drawing the edge glow on adjacent pages, 4261 // so we need to redraw the workspace when this may have changed. 4262 invalidate(); 4263 result = true; 4264 } 4265 } 4266 return result; 4267 } 4268 4269 @Override 4270 public boolean onExitScrollArea() { 4271 boolean result = false; 4272 if (mInScrollArea) { 4273 invalidate(); 4274 CellLayout layout = getCurrentDropLayout(); 4275 setCurrentDropLayout(layout); 4276 setCurrentDragOverlappingLayout(layout); 4277 4278 result = true; 4279 mInScrollArea = false; 4280 } 4281 return result; 4282 } 4283 4284 private void onResetScrollArea() { 4285 setCurrentDragOverlappingLayout(null); 4286 mInScrollArea = false; 4287 } 4288 4289 /** 4290 * Returns a specific CellLayout 4291 */ 4292 CellLayout getParentCellLayoutForView(View v) { 4293 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 4294 for (CellLayout layout : layouts) { 4295 if (layout.getShortcutsAndWidgets().indexOfChild(v) > -1) { 4296 return layout; 4297 } 4298 } 4299 return null; 4300 } 4301 4302 /** 4303 * Returns a list of all the CellLayouts in the workspace. 4304 */ 4305 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 4306 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 4307 int screenCount = getChildCount(); 4308 for (int screen = 0; screen < screenCount; screen++) { 4309 layouts.add(((CellLayout) getChildAt(screen))); 4310 } 4311 if (mLauncher.getHotseat() != null) { 4312 layouts.add(mLauncher.getHotseat().getLayout()); 4313 } 4314 return layouts; 4315 } 4316 4317 /** 4318 * We should only use this to search for specific children. Do not use this method to modify 4319 * ShortcutsAndWidgetsContainer directly. Includes ShortcutAndWidgetContainers from 4320 * the hotseat and workspace pages 4321 */ 4322 ArrayList<ShortcutAndWidgetContainer> getAllShortcutAndWidgetContainers() { 4323 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4324 new ArrayList<ShortcutAndWidgetContainer>(); 4325 int screenCount = getChildCount(); 4326 for (int screen = 0; screen < screenCount; screen++) { 4327 childrenLayouts.add(((CellLayout) getChildAt(screen)).getShortcutsAndWidgets()); 4328 } 4329 if (mLauncher.getHotseat() != null) { 4330 childrenLayouts.add(mLauncher.getHotseat().getLayout().getShortcutsAndWidgets()); 4331 } 4332 return childrenLayouts; 4333 } 4334 4335 public Folder getFolderForTag(Object tag) { 4336 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4337 getAllShortcutAndWidgetContainers(); 4338 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4339 int count = layout.getChildCount(); 4340 for (int i = 0; i < count; i++) { 4341 View child = layout.getChildAt(i); 4342 if (child instanceof Folder) { 4343 Folder f = (Folder) child; 4344 if (f.getInfo() == tag && f.getInfo().opened) { 4345 return f; 4346 } 4347 } 4348 } 4349 } 4350 return null; 4351 } 4352 4353 public View getViewForTag(Object tag) { 4354 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4355 getAllShortcutAndWidgetContainers(); 4356 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4357 int count = layout.getChildCount(); 4358 for (int i = 0; i < count; i++) { 4359 View child = layout.getChildAt(i); 4360 if (child.getTag() == tag) { 4361 return child; 4362 } 4363 } 4364 } 4365 return null; 4366 } 4367 4368 void clearDropTargets() { 4369 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4370 getAllShortcutAndWidgetContainers(); 4371 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4372 int childCount = layout.getChildCount(); 4373 for (int j = 0; j < childCount; j++) { 4374 View v = layout.getChildAt(j); 4375 if (v instanceof DropTarget) { 4376 mDragController.removeDropTarget((DropTarget) v); 4377 } 4378 } 4379 } 4380 } 4381 4382 // Removes ALL items that match a given package name, this is usually called when a package 4383 // has been removed and we want to remove all components (widgets, shortcuts, apps) that 4384 // belong to that package. 4385 void removeItemsByPackageName(final ArrayList<String> packages) { 4386 final HashSet<String> packageNames = new HashSet<String>(); 4387 packageNames.addAll(packages); 4388 4389 // Filter out all the ItemInfos that this is going to affect 4390 final HashSet<ItemInfo> infos = new HashSet<ItemInfo>(); 4391 final HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4392 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4393 for (CellLayout layoutParent : cellLayouts) { 4394 ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4395 int childCount = layout.getChildCount(); 4396 for (int i = 0; i < childCount; ++i) { 4397 View view = layout.getChildAt(i); 4398 infos.add((ItemInfo) view.getTag()); 4399 } 4400 } 4401 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4402 @Override 4403 public boolean filterItem(ItemInfo parent, ItemInfo info, 4404 ComponentName cn) { 4405 if (packageNames.contains(cn.getPackageName())) { 4406 cns.add(cn); 4407 return true; 4408 } 4409 return false; 4410 } 4411 }; 4412 LauncherModel.filterItemInfos(infos, filter); 4413 4414 // Remove the affected components 4415 removeItemsByComponentName(cns); 4416 } 4417 4418 // Removes items that match the application info specified, when applications are removed 4419 // as a part of an update, this is called to ensure that other widgets and application 4420 // shortcuts are not removed. 4421 void removeItemsByApplicationInfo(final ArrayList<AppInfo> appInfos) { 4422 // Just create a hash table of all the specific components that this will affect 4423 HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4424 for (AppInfo info : appInfos) { 4425 cns.add(info.componentName); 4426 } 4427 4428 // Remove all the things 4429 removeItemsByComponentName(cns); 4430 } 4431 4432 void removeItemsByComponentName(final HashSet<ComponentName> componentNames) { 4433 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4434 for (final CellLayout layoutParent: cellLayouts) { 4435 final ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4436 4437 final HashMap<ItemInfo, View> children = new HashMap<ItemInfo, View>(); 4438 for (int j = 0; j < layout.getChildCount(); j++) { 4439 final View view = layout.getChildAt(j); 4440 children.put((ItemInfo) view.getTag(), view); 4441 } 4442 4443 final ArrayList<View> childrenToRemove = new ArrayList<View>(); 4444 final HashMap<FolderInfo, ArrayList<ShortcutInfo>> folderAppsToRemove = 4445 new HashMap<FolderInfo, ArrayList<ShortcutInfo>>(); 4446 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4447 @Override 4448 public boolean filterItem(ItemInfo parent, ItemInfo info, 4449 ComponentName cn) { 4450 if (parent instanceof FolderInfo) { 4451 if (componentNames.contains(cn)) { 4452 FolderInfo folder = (FolderInfo) parent; 4453 ArrayList<ShortcutInfo> appsToRemove; 4454 if (folderAppsToRemove.containsKey(folder)) { 4455 appsToRemove = folderAppsToRemove.get(folder); 4456 } else { 4457 appsToRemove = new ArrayList<ShortcutInfo>(); 4458 folderAppsToRemove.put(folder, appsToRemove); 4459 } 4460 appsToRemove.add((ShortcutInfo) info); 4461 return true; 4462 } 4463 } else { 4464 if (componentNames.contains(cn)) { 4465 childrenToRemove.add(children.get(info)); 4466 return true; 4467 } 4468 } 4469 return false; 4470 } 4471 }; 4472 LauncherModel.filterItemInfos(children.keySet(), filter); 4473 4474 // Remove all the apps from their folders 4475 for (FolderInfo folder : folderAppsToRemove.keySet()) { 4476 ArrayList<ShortcutInfo> appsToRemove = folderAppsToRemove.get(folder); 4477 for (ShortcutInfo info : appsToRemove) { 4478 folder.remove(info); 4479 } 4480 } 4481 4482 // Remove all the other children 4483 for (View child : childrenToRemove) { 4484 // Note: We can not remove the view directly from CellLayoutChildren as this 4485 // does not re-mark the spaces as unoccupied. 4486 layoutParent.removeViewInLayout(child); 4487 if (child instanceof DropTarget) { 4488 mDragController.removeDropTarget((DropTarget) child); 4489 } 4490 } 4491 4492 if (childrenToRemove.size() > 0) { 4493 layout.requestLayout(); 4494 layout.invalidate(); 4495 } 4496 } 4497 4498 // Strip all the empty screens 4499 stripEmptyScreens(); 4500 } 4501 4502 private void updateShortcut(HashMap<ComponentName, AppInfo> appsMap, ItemInfo info, 4503 View child) { 4504 ComponentName cn = info.getIntent().getComponent(); 4505 if (cn != null) { 4506 AppInfo appInfo = appsMap.get(info.getIntent().getComponent()); 4507 if ((appInfo != null) && LauncherModel.isShortcutInfoUpdateable(info)) { 4508 ShortcutInfo shortcutInfo = (ShortcutInfo) info; 4509 BubbleTextView shortcut = (BubbleTextView) child; 4510 shortcutInfo.updateIcon(mIconCache); 4511 shortcutInfo.title = appInfo.title.toString(); 4512 shortcut.applyFromShortcutInfo(shortcutInfo, mIconCache); 4513 } 4514 } 4515 } 4516 4517 void updateShortcuts(ArrayList<AppInfo> apps) { 4518 // Create a map of the apps to test against 4519 final HashMap<ComponentName, AppInfo> appsMap = new HashMap<ComponentName, AppInfo>(); 4520 for (AppInfo ai : apps) { 4521 appsMap.put(ai.componentName, ai); 4522 } 4523 4524 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = getAllShortcutAndWidgetContainers(); 4525 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4526 // Update all the children shortcuts 4527 final HashMap<ItemInfo, View> children = new HashMap<ItemInfo, View>(); 4528 for (int j = 0; j < layout.getChildCount(); j++) { 4529 View v = layout.getChildAt(j); 4530 ItemInfo info = (ItemInfo) v.getTag(); 4531 if (info instanceof FolderInfo && v instanceof FolderIcon) { 4532 FolderIcon folder = (FolderIcon) v; 4533 ArrayList<View> folderChildren = folder.getFolder().getItemsInReadingOrder(); 4534 for (View fv : folderChildren) { 4535 info = (ItemInfo) fv.getTag(); 4536 updateShortcut(appsMap, info, fv); 4537 } 4538 folder.invalidate(); 4539 } else if (info instanceof ShortcutInfo) { 4540 updateShortcut(appsMap, info, v); 4541 } 4542 } 4543 } 4544 } 4545 4546 private void moveToScreen(int page, boolean animate) { 4547 if (!isSmall()) { 4548 if (animate) { 4549 snapToPage(page); 4550 } else { 4551 setCurrentPage(page); 4552 } 4553 } 4554 View child = getChildAt(page); 4555 if (child != null) { 4556 child.requestFocus(); 4557 } 4558 } 4559 4560 void moveToDefaultScreen(boolean animate) { 4561 moveToScreen(mDefaultPage, animate); 4562 } 4563 4564 void moveToCustomContentScreen(boolean animate) { 4565 if (hasCustomContent()) { 4566 int ccIndex = getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID); 4567 if (animate) { 4568 snapToPage(ccIndex); 4569 } else { 4570 setCurrentPage(ccIndex); 4571 } 4572 View child = getChildAt(ccIndex); 4573 if (child != null) { 4574 child.requestFocus(); 4575 } 4576 } 4577 exitWidgetResizeMode(); 4578 } 4579 4580 @Override 4581 protected PageIndicator.PageMarkerResources getPageIndicatorMarker(int pageIndex) { 4582 long screenId = getScreenIdForPageIndex(pageIndex); 4583 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 4584 int count = mScreenOrder.size() - numCustomPages(); 4585 if (count > 1) { 4586 return new PageIndicator.PageMarkerResources(R.drawable.ic_pageindicator_current, 4587 R.drawable.ic_pageindicator_add); 4588 } 4589 } 4590 4591 return super.getPageIndicatorMarker(pageIndex); 4592 } 4593 4594 @Override 4595 public void syncPages() { 4596 } 4597 4598 @Override 4599 public void syncPageItems(int page, boolean immediate) { 4600 } 4601 4602 protected String getPageIndicatorDescription() { 4603 String settings = getResources().getString(R.string.settings_button_text); 4604 return getCurrentPageDescription() + ", " + settings; 4605 } 4606 4607 protected String getCurrentPageDescription() { 4608 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 4609 int delta = numCustomPages(); 4610 if (hasCustomContent() && getNextPage() == 0) { 4611 return mCustomContentDescription; 4612 } 4613 return String.format(getContext().getString(R.string.workspace_scroll_format), 4614 page + 1 - delta, getChildCount() - delta); 4615 } 4616 4617 public void getLocationInDragLayer(int[] loc) { 4618 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 4619 } 4620} 4621