ZoomButtonsController.java revision 105925376f8d0f6b318c9938c7b83ef7fef094da
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2008 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.widget; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.BroadcastReceiver; 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.Context; 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.Intent; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.IntentFilter; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.PixelFormat; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Rect; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Handler; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Message; 27ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Projectimport android.util.Log; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.Gravity; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.KeyEvent; 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.LayoutInflater; 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.MotionEvent; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View; 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewConfiguration; 34c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Projectimport android.view.ViewGroup; 35ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Projectimport android.view.ViewParent; 36ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Projectimport android.view.ViewRoot; 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.WindowManager; 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View.OnClickListener; 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.WindowManager.LayoutParams; 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project/* 42ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * Implementation notes: 43ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * - The zoom controls are displayed in their own window. 44ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * (Easier for the client and better performance) 45105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * - This window is never touchable, and by default is not focusable. 46105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * Its rect is quite big (fills horizontally) but has empty space between the 47105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * edges and center. Touches there should be given to the owner. Instead of 48105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * having the window touchable and dispatching these empty touch events to the 49105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * owner, we set the window to not touchable and steal events from owner 50105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * via onTouchListener. 51105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * - To make the buttons clickable, it attaches an OnTouchListener to the owner 52105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * view and does the hit detection locally (attaches when visible, detaches when invisible). 53ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * - When it is focusable, it forwards uninteresting events to the owner view's 54ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * view hierarchy. 55ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project */ 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 57ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * The {@link ZoomButtonsController} handles showing and hiding the zoom 58105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * controls and positioning it relative to an owner view. It also gives the 59105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * client access to the zoom controls container, allowing for additional 60105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * accessory buttons to be shown in the zoom controls window. 61ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * <p> 62105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * Typically, clients should call {@link #setVisible(boolean) setVisible(true)} 63105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * on a touch down or move (no need to call {@link #setVisible(boolean) 64105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * setVisible(false)} since it will time out on its own). Also, whenever the 65105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * owner cannot be zoomed further, the client should update 66ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * {@link #setZoomInEnabled(boolean)} and {@link #setZoomOutEnabled(boolean)}. 67ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * <p> 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If you are using this with a custom View, please call 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #setVisible(boolean) setVisible(false)} from the 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link View#onDetachedFromWindow}. 71105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 74ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Projectpublic class ZoomButtonsController implements View.OnTouchListener { 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final String TAG = "ZoomButtonsController"; 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int ZOOM_CONTROLS_TIMEOUT = 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (int) ViewConfiguration.getZoomControlsTimeout(); 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int ZOOM_CONTROLS_TOUCH_PADDING = 20; 82ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project private int mTouchPaddingScaledSq; 83c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Context mContext; 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private WindowManager mWindowManager; 86105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project private boolean mAutoDismissControls = true; 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 89b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * The view that is being zoomed by this zoom controller. 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View mOwnerView; 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 94ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * The location of the owner view on the screen. This is recalculated 95b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * each time the zoom controller is shown. 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 97ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project private int[] mOwnerViewRawLocation = new int[2]; 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The container that is added as a window. 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FrameLayout mContainer; 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private LayoutParams mContainerLayoutParams; 104ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project private int[] mContainerRawLocation = new int[2]; 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ZoomControls mControls; 107c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view (or null) that should receive touch events. This will get set if 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the touch down hits the container. It will be reset on the touch up. 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View mTouchTargetView; 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The {@link #mTouchTargetView}'s location in window, set on touch down. 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 116ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project private int[] mTouchTargetWindowLocation = new int[2]; 117105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 119b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * If the zoom controller is dismissed but the user is still in a touch 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * interaction, we set this to true. This will ignore all touch events until 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * up/cancel, and then set the owner's touch listener to null. 122105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * <p> 123105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * Otherwise, the owner view would get mismatched events (i.e., touch move 124105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * even though it never got the touch down.) 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mReleaseTouchListenerOnUp; 127c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project 128ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project /** Whether the container has been added to the window manager. */ 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsVisible; 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Rect mTempRect = new Rect(); 132ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project private int[] mTempIntArray = new int[2]; 133105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnZoomListener mCallback; 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When showing the zoom, we add the view as a new window. However, there is 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * logic that needs to know the size of the zoom which is determined after 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * it's laid out. Therefore, we must post this logic onto the UI thread so 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * it will be exceuted AFTER the layout. This is the logic. 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Runnable mPostedVisibleInitializer; 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private IntentFilter mConfigurationChangedFilter = 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project new IntentFilter(Intent.ACTION_CONFIGURATION_CHANGED); 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 147ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project /** 148ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * Needed to reposition the zoom controls after configuration changes. 149ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project */ 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private BroadcastReceiver mConfigurationChangedReceiver = new BroadcastReceiver() { 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onReceive(Context context, Intent intent) { 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mIsVisible) return; 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mHandler.removeMessages(MSG_POST_CONFIGURATION_CHANGED); 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mHandler.sendEmptyMessage(MSG_POST_CONFIGURATION_CHANGED); 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** When configuration changes, this is called after the UI thread is idle. */ 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int MSG_POST_CONFIGURATION_CHANGED = 2; 162b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** Used to delay the zoom controller dismissal. */ 163b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private static final int MSG_DISMISS_ZOOM_CONTROLS = 3; 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If setVisible(true) is called and the owner view's window token is null, 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * we delay the setVisible(true) call until it is not null. 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int MSG_POST_SET_VISIBLE = 4; 169c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Handler mHandler = new Handler() { 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void handleMessage(Message msg) { 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (msg.what) { 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MSG_POST_CONFIGURATION_CHANGED: 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project onPostConfigurationChanged(); 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 178b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project case MSG_DISMISS_ZOOM_CONTROLS: 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVisible(false); 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 181c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MSG_POST_SET_VISIBLE: 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOwnerView.getWindowToken() == null) { 184ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project // Doh, it is still null, just ignore the set visible call 185ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project Log.e(TAG, 186b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project "Cannot make the zoom controller visible if the owner view is " + 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "not attached to a window."); 188ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } else { 189ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project setVisible(true); 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 197ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project /** 198ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * Constructor for the {@link ZoomButtonsController}. 199105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * 200ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * @param ownerView The view that is being zoomed by the zoom controls. The 201ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * zoom controls will be displayed aligned with this view. 202ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project */ 203ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project public ZoomButtonsController(View ownerView) { 204ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project mContext = ownerView.getContext(); 205ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project mWindowManager = (WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE); 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOwnerView = ownerView; 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 208ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project mTouchPaddingScaledSq = (int) 209ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project (ZOOM_CONTROLS_TOUCH_PADDING * mContext.getResources().getDisplayMetrics().density); 210ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project mTouchPaddingScaledSq *= mTouchPaddingScaledSq; 211105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContainer = createContainer(); 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 214c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project 215ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project /** 216ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * Whether to enable the zoom in control. 217105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * 218ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * @param enabled Whether to enable the zoom in control. 219ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project */ 220b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public void setZoomInEnabled(boolean enabled) { 221b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mControls.setIsZoomInEnabled(enabled); 222b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 223c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project 224ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project /** 225ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * Whether to enable the zoom out control. 226105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * 227ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * @param enabled Whether to enable the zoom out control. 228ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project */ 229b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public void setZoomOutEnabled(boolean enabled) { 230b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mControls.setIsZoomOutEnabled(enabled); 231b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 232c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project 233ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project /** 234ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * Sets the delay between zoom callbacks as the user holds a zoom button. 235105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * 236ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * @param speed The delay in milliseconds between zoom callbacks. 237ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project */ 238b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public void setZoomSpeed(long speed) { 239b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mControls.setZoomSpeed(speed); 240b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 241c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FrameLayout createContainer() { 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutParams lp = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT); 244ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project // Controls are positioned BOTTOM | CENTER with respect to the owner view. 245ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project lp.gravity = Gravity.TOP | Gravity.LEFT; 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lp.flags = LayoutParams.FLAG_NOT_TOUCHABLE | 247b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project LayoutParams.FLAG_NOT_FOCUSABLE | 248105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project LayoutParams.FLAG_LAYOUT_NO_LIMITS | 249105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project LayoutParams.FLAG_ALT_FOCUSABLE_IM; 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lp.height = LayoutParams.WRAP_CONTENT; 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lp.width = LayoutParams.FILL_PARENT; 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lp.type = LayoutParams.TYPE_APPLICATION_PANEL; 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lp.format = PixelFormat.TRANSPARENT; 254c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project lp.windowAnimations = com.android.internal.R.style.Animation_ZoomButtons; 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContainerLayoutParams = lp; 256c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project 257ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project FrameLayout container = new Container(mContext); 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project container.setLayoutParams(lp); 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project container.setMeasureAllChildren(true); 260c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutInflater inflater = (LayoutInflater) mContext 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project .getSystemService(Context.LAYOUT_INFLATER_SERVICE); 263c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project inflater.inflate(com.android.internal.R.layout.zoom_container, container); 264c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mControls = (ZoomControls) container.findViewById(com.android.internal.R.id.zoomControls); 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mControls.setOnZoomInClickListener(new OnClickListener() { 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onClick(View v) { 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissControlsDelayed(ZOOM_CONTROLS_TIMEOUT); 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCallback != null) mCallback.onZoom(true); 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }); 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mControls.setOnZoomOutClickListener(new OnClickListener() { 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onClick(View v) { 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissControlsDelayed(ZOOM_CONTROLS_TIMEOUT); 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCallback != null) mCallback.onZoom(false); 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }); 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return container; 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 281c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project 282ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project /** 283ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * Sets the {@link OnZoomListener} listener that receives callbacks to zoom. 284105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * 285ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * @param listener The listener that will be told to zoom. 286ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project */ 287ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project public void setOnZoomListener(OnZoomListener listener) { 288ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project mCallback = listener; 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 291ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project /** 292ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * Sets whether the zoom controls should be focusable. If the controls are 293ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * focusable, then trackball and arrow key interactions are possible. 294ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * Otherwise, only touch interactions are possible. 295105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * 296ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * @param focusable Whether the zoom controls should be focusable. 297ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project */ 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFocusable(boolean focusable) { 299ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project int oldFlags = mContainerLayoutParams.flags; 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (focusable) { 301c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project mContainerLayoutParams.flags &= ~LayoutParams.FLAG_NOT_FOCUSABLE; 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContainerLayoutParams.flags |= LayoutParams.FLAG_NOT_FOCUSABLE; 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 305c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project 306ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if ((mContainerLayoutParams.flags != oldFlags) && mIsVisible) { 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mWindowManager.updateViewLayout(mContainer, mContainerLayoutParams); 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 311ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project /** 312105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * Whether the zoom controls will be automatically dismissed after showing. 313105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * 314105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * @return Whether the zoom controls will be auto dismissed after showing. 315105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project */ 316105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project public boolean isAutoDismissed() { 317105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project return mAutoDismissControls; 318105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project } 319105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project 320105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project /** 321105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * Sets whether the zoom controls will be automatically dismissed after 322105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * showing. 323105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project */ 324105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project public void setAutoDismissed(boolean autoDismiss) { 325105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project if (mAutoDismissControls == autoDismiss) return; 326105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mAutoDismissControls = autoDismiss; 327105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project } 328105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project 329105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project /** 330ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * Whether the zoom controls are visible to the user. 331105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * 332ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * @return Whether the zoom controls are visible to the user. 333ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project */ 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isVisible() { 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mIsVisible; 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 338ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project /** 339ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * Sets whether the zoom controls should be visible to the user. 340105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * 341ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * @param visible Whether the zoom controls should be visible to the user. 342ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project */ 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setVisible(boolean visible) { 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (visible) { 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOwnerView.getWindowToken() == null) { 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * We need a window token to show ourselves, maybe the owner's 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * window hasn't been created yet but it will have been by the 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * time the looper is idle, so post the setVisible(true) call. 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mHandler.hasMessages(MSG_POST_SET_VISIBLE)) { 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mHandler.sendEmptyMessage(MSG_POST_SET_VISIBLE); 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 357c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissControlsDelayed(ZOOM_CONTROLS_TIMEOUT); 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsVisible == visible) { 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsVisible = visible; 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (visible) { 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mContainerLayoutParams.token == null) { 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContainerLayoutParams.token = mOwnerView.getWindowToken(); 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mWindowManager.addView(mContainer, mContainerLayoutParams); 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPostedVisibleInitializer == null) { 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPostedVisibleInitializer = new Runnable() { 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project refreshPositioningVariables(); 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCallback != null) { 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCallback.onVisibilityChanged(true); 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mHandler.post(mPostedVisibleInitializer); 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handle configuration changes when visible 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContext.registerReceiver(mConfigurationChangedReceiver, mConfigurationChangedFilter); 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Steal touches events from the owner 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOwnerView.setOnTouchListener(this); 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mReleaseTouchListenerOnUp = false; 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't want to steal any more touches 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchTargetView != null) { 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are still stealing the touch events for this touch 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // sequence, so release the touch listener later 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mReleaseTouchListenerOnUp = true; 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOwnerView.setOnTouchListener(null); 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // No longer care about configuration changes 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContext.unregisterReceiver(mConfigurationChangedReceiver); 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mWindowManager.removeView(mContainer); 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mHandler.removeCallbacks(mPostedVisibleInitializer); 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCallback != null) { 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCallback.onVisibilityChanged(false); 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 418ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * Gets the container that is the parent of the zoom controls. 419ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * <p> 420ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * The client can add other views to this container to link them with the 421ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * zoom controls. 422105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * 423ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * @return The container of the zoom controls. It will be a layout that 424ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * respects the gravity of a child's layout parameters. 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 426c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project public ViewGroup getContainer() { 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContainer; 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 431105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * Gets the view for the zoom controls. 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 433105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * @return The zoom controls view. 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 435105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project public View getZoomControls() { 436105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project return mControls; 437105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project } 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 439105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project private void dismissControlsDelayed(int delay) { 440105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project if (mAutoDismissControls) { 441105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mHandler.removeMessages(MSG_DISMISS_ZOOM_CONTROLS); 442105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mHandler.sendEmptyMessageDelayed(MSG_DISMISS_ZOOM_CONTROLS, delay); 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void refreshPositioningVariables() { 447ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project // Position the zoom controls on the bottom of the owner view. 448ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project int ownerHeight = mOwnerView.getHeight(); 449ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project int ownerWidth = mOwnerView.getWidth(); 450ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project // The gap between the top of the owner and the top of the container 451ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project int containerOwnerYOffset = ownerHeight - mContainer.getHeight(); 452ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Calculate the owner view's bounds 454ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project mOwnerView.getLocationOnScreen(mOwnerViewRawLocation); 455ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project mContainerRawLocation[0] = mOwnerViewRawLocation[0]; 456ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project mContainerRawLocation[1] = mOwnerViewRawLocation[1] + containerOwnerYOffset; 457105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project 458ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project int[] ownerViewWindowLoc = mTempIntArray; 459ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project mOwnerView.getLocationInWindow(ownerViewWindowLoc); 460ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project 461ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project // lp.x and lp.y should be relative to the owner's window top-left 462ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project mContainerLayoutParams.x = ownerViewWindowLoc[0]; 463ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project mContainerLayoutParams.width = ownerWidth; 464ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project mContainerLayoutParams.y = ownerViewWindowLoc[1] + containerOwnerYOffset; 465ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (mIsVisible) { 466ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project mWindowManager.updateViewLayout(mContainer, mContainerLayoutParams); 467ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 471ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project /* This will only be called when the container has focus. */ 472ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project private boolean onContainerKey(KeyEvent event) { 473ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project int keyCode = event.getKeyCode(); 474ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (isInterestingKey(keyCode)) { 475105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project 476ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (keyCode == KeyEvent.KEYCODE_BACK) { 477ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project setVisible(false); 478ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } else { 479ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project dismissControlsDelayed(ZOOM_CONTROLS_TIMEOUT); 480ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 481105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project 482ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project // Let the container handle the key 483ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project return false; 484105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project 485ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } else { 486105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project 487ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project ViewRoot viewRoot = getOwnerViewRoot(); 488ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (viewRoot != null) { 489ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project viewRoot.dispatchKey(event); 490ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 491105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project 492ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project // We gave the key to the owner, don't let the container handle this key 493ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project return true; 494ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 495b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 496b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project 497ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project private boolean isInterestingKey(int keyCode) { 498ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project switch (keyCode) { 499ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 500ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 501ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 502ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 503ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 504ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 505ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project case KeyEvent.KEYCODE_BACK: 506ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project return true; 507ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project default: 508ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project return false; 509ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 510ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 511105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project 512ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project private ViewRoot getOwnerViewRoot() { 513ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project View rootViewOfOwner = mOwnerView.getRootView(); 514ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (rootViewOfOwner == null) { 515ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project return null; 516ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 517105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project 518ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project ViewParent parentOfRootView = rootViewOfOwner.getParent(); 519ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (parentOfRootView instanceof ViewRoot) { 520ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project return (ViewRoot) parentOfRootView; 521ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } else { 522ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project return null; 523ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 524ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 525ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project 526ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project /** 527ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * @hide The ZoomButtonsController implements the OnTouchListener, but this 528ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * does not need to be shown in its public API. 529ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project */ 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouch(View v, MotionEvent event) { 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mReleaseTouchListenerOnUp) { 534b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // The controls were dismissed but we need to throw away all events until the up 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (action == MotionEvent.ACTION_UP || action == MotionEvent.ACTION_CANCEL) { 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOwnerView.setOnTouchListener(null); 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTouchTargetView(null); 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mReleaseTouchListenerOnUp = false; 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Eat this event 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissControlsDelayed(ZOOM_CONTROLS_TIMEOUT); 546c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View targetView = mTouchTargetView; 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: 551ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project targetView = findViewForTouch((int) event.getRawX(), (int) event.getRawY()); 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTouchTargetView(targetView); 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTouchTargetView(null); 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (targetView != null) { 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The upperleft corner of the target view in raw coordinates 563ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project int targetViewRawX = mContainerRawLocation[0] + mTouchTargetWindowLocation[0]; 564ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project int targetViewRawY = mContainerRawLocation[1] + mTouchTargetWindowLocation[1]; 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project MotionEvent containerEvent = MotionEvent.obtain(event); 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Convert the motion event into the target view's coordinates (from 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // owner view's coordinates) 569ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project containerEvent.offsetLocation(mOwnerViewRawLocation[0] - targetViewRawX, 570ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project mOwnerViewRawLocation[1] - targetViewRawY); 571ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project /* Disallow negative coordinates (which can occur due to 572ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * ZOOM_CONTROLS_TOUCH_PADDING) */ 573105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project // These are floats because we need to potentially offset away this exact amount 574105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project float containerX = containerEvent.getX(); 575105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project float containerY = containerEvent.getY(); 576105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project if (containerX < 0 && containerX > -ZOOM_CONTROLS_TOUCH_PADDING) { 577105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project containerEvent.offsetLocation(-containerX, 0); 578ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 579105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project if (containerY < 0 && containerY > -ZOOM_CONTROLS_TOUCH_PADDING) { 580105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project containerEvent.offsetLocation(0, -containerY); 581ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean retValue = targetView.dispatchTouchEvent(containerEvent); 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project containerEvent.recycle(); 584105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project return retValue; 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 587105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project return false; 5889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void setTouchTargetView(View view) { 5929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchTargetView = view; 5939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (view != null) { 594ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project view.getLocationInWindow(mTouchTargetWindowLocation); 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the View that should receive a touch at the given coordinates. 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rawX The raw X. 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rawY The raw Y. 6039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view that should receive the touches, or null if there is not one. 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 605ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project private View findViewForTouch(int rawX, int rawY) { 6069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reverse order so the child drawn on top gets first dibs. 607ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project int containerCoordsX = rawX - mContainerRawLocation[0]; 608ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project int containerCoordsY = rawY - mContainerRawLocation[1]; 6099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTempRect; 610ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project 611ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project View closestChild = null; 612ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project int closestChildDistanceSq = Integer.MAX_VALUE; 613105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project 6149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = mContainer.getChildCount() - 1; i >= 0; i--) { 6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = mContainer.getChildAt(i); 6169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() != View.VISIBLE) { 6179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 6189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 6219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(containerCoordsX, containerCoordsY)) { 6229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 6239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 624105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project 625105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project int distanceX; 626105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project if (containerCoordsX >= frame.left && containerCoordsX <= frame.right) { 627105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project distanceX = 0; 628105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project } else { 629105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project distanceX = Math.min(Math.abs(frame.left - containerCoordsX), 630ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project Math.abs(containerCoordsX - frame.right)); 631105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project } 632105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project int distanceY; 633105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project if (containerCoordsY >= frame.top && containerCoordsY <= frame.bottom) { 634105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project distanceY = 0; 635105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project } else { 636105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project distanceY = Math.min(Math.abs(frame.top - containerCoordsY), 637105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project Math.abs(containerCoordsY - frame.bottom)); 638105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project } 639ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project int distanceSq = distanceX * distanceX + distanceY * distanceY; 640105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project 641ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if ((distanceSq < mTouchPaddingScaledSq) && 642ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project (distanceSq < closestChildDistanceSq)) { 643ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project closestChild = child; 644ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project closestChildDistanceSq = distanceSq; 645ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 648ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project return closestChild; 6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void onPostConfigurationChanged() { 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissControlsDelayed(ZOOM_CONTROLS_TIMEOUT); 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project refreshPositioningVariables(); 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 656ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project /** 657ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * Interface that will be called when the user performs an interaction that 658ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * triggers some action, for example zooming. 659ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project */ 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnZoomListener { 661105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project 662ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project /** 663ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * Called when the zoom controls' visibility changes. 664105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * 665ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * @param visible Whether the zoom controls are visible. 666ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project */ 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onVisibilityChanged(boolean visible); 668105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project 669ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project /** 670ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * Called when the owner view needs to be zoomed. 671105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * 672ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * @param zoomIn The direction of the zoom: true to zoom in, false to zoom out. 673ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project */ 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onZoom(boolean zoomIn); 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 676105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project 677ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project private class Container extends FrameLayout { 678ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project public Container(Context context) { 679ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project super(context); 680ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 681ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project 682ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project /* 683ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * Need to override this to intercept the key events. Otherwise, we 684ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * would attach a key listener to the container but its superclass 685ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * ViewGroup gives it to the focused View instead of calling the key 686ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project * listener, and so we wouldn't get the events. 687ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project */ 688ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project @Override 689ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project public boolean dispatchKeyEvent(KeyEvent event) { 690ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project return onContainerKey(event) ? true : super.dispatchKeyEvent(event); 691ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 692ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 693ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 695