ButtonDropTarget.java revision 043f2af567178b82b0b41f12d379e7dd12da2936
161fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung/* 261fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung * Copyright (C) 2010 The Android Open Source Project 361fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung * 461fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung * Licensed under the Apache License, Version 2.0 (the "License"); 561fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung * you may not use this file except in compliance with the License. 661fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung * You may obtain a copy of the License at 761fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung * 861fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung * http://www.apache.org/licenses/LICENSE-2.0 961fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung * 1061fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung * Unless required by applicable law or agreed to in writing, software 1161fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung * distributed under the License is distributed on an "AS IS" BASIS, 1261fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1361fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung * See the License for the specific language governing permissions and 1461fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung * limitations under the License. 1561fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung */ 1661fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung 1761fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chungpackage com.android.launcher2; 1861fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung 1961fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chungimport android.content.Context; 20a62e9fd95ae10cff4676f2cc1f4d68334ca27a0bWinson Chungimport android.content.res.Resources; 21043f2af567178b82b0b41f12d379e7dd12da2936Winson Chungimport android.graphics.PointF; 2261967cb17f8fa9ee01f93e9f25a1074559b54cf3Winson Chungimport android.graphics.Rect; 2361fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chungimport android.util.AttributeSet; 24d4d7aa551ffdc80d810ff970fa72a6509960401eAdam Cohenimport android.widget.TextView; 2561fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung 2661fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chungimport com.android.launcher.R; 2761fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung 2861fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung 2961fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung/** 3061fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung * Implements a DropTarget. 3161fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung */ 32a6427b15c18d5b8f3078f553d78f8432de9f46e9Winson Chungpublic class ButtonDropTarget extends TextView implements DropTarget, DragController.DragListener { 3361fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung 3461fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung protected final int mTransitionDuration; 3561fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung 3661fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung protected Launcher mLauncher; 37a62e9fd95ae10cff4676f2cc1f4d68334ca27a0bWinson Chung private int mBottomDragPadding; 38d4d7aa551ffdc80d810ff970fa72a6509960401eAdam Cohen protected TextView mText; 39d4d7aa551ffdc80d810ff970fa72a6509960401eAdam Cohen protected SearchDropTargetBar mSearchDropTargetBar; 4061fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung 4161fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung /** Whether this drop target is active for the current drag */ 4261fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung protected boolean mActive; 4361fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung 4461fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung /** The paint applied to the drag view on hover */ 4561967cb17f8fa9ee01f93e9f25a1074559b54cf3Winson Chung protected int mHoverColor = 0; 4661fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung 4761fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung public ButtonDropTarget(Context context, AttributeSet attrs) { 4861fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung this(context, attrs, 0); 4961fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung } 5061fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung 5161fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung public ButtonDropTarget(Context context, AttributeSet attrs, int defStyle) { 5261fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung super(context, attrs, defStyle); 5361fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung 54a62e9fd95ae10cff4676f2cc1f4d68334ca27a0bWinson Chung Resources r = getResources(); 55a62e9fd95ae10cff4676f2cc1f4d68334ca27a0bWinson Chung mTransitionDuration = r.getInteger(R.integer.config_dropTargetBgTransitionDuration); 56a62e9fd95ae10cff4676f2cc1f4d68334ca27a0bWinson Chung mBottomDragPadding = r.getDimensionPixelSize(R.dimen.drop_target_drag_padding); 5761fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung } 5861fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung 5961fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung void setLauncher(Launcher launcher) { 6061fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung mLauncher = launcher; 6161fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung } 6261fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung 6361fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung public boolean acceptDrop(DragObject d) { 6461fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung return false; 6561fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung } 6661fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung 67d4d7aa551ffdc80d810ff970fa72a6509960401eAdam Cohen public void setSearchDropTargetBar(SearchDropTargetBar searchDropTargetBar) { 68d4d7aa551ffdc80d810ff970fa72a6509960401eAdam Cohen mSearchDropTargetBar = searchDropTargetBar; 69d4d7aa551ffdc80d810ff970fa72a6509960401eAdam Cohen } 70d4d7aa551ffdc80d810ff970fa72a6509960401eAdam Cohen 7161fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung public void onDrop(DragObject d) { 7261fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung } 7361fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung 74043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung public void onFlingToDelete(DragObject d, int x, int y, PointF vec) { 75043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung // Do nothing 76043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 77043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 7861fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung public void onDragEnter(DragObject d) { 7961967cb17f8fa9ee01f93e9f25a1074559b54cf3Winson Chung d.dragView.setColor(mHoverColor); 8061fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung } 8161fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung 8261fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung public void onDragOver(DragObject d) { 8361fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung // Do nothing 8461fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung } 8561fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung 8661fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung public void onDragExit(DragObject d) { 8761967cb17f8fa9ee01f93e9f25a1074559b54cf3Winson Chung d.dragView.setColor(0); 8861fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung } 8961fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung 9061fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung public void onDragStart(DragSource source, Object info, int dragAction) { 9161fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung // Do nothing 9261fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung } 9361fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung 9461fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung public boolean isDropEnabled() { 9561fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung return mActive; 9661fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung } 9761fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung 9861fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung public void onDragEnd() { 9961fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung // Do nothing 10061fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung } 10161fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung 10261fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung @Override 103a62e9fd95ae10cff4676f2cc1f4d68334ca27a0bWinson Chung public void getHitRect(android.graphics.Rect outRect) { 104a62e9fd95ae10cff4676f2cc1f4d68334ca27a0bWinson Chung super.getHitRect(outRect); 105a62e9fd95ae10cff4676f2cc1f4d68334ca27a0bWinson Chung outRect.bottom += mBottomDragPadding; 106a62e9fd95ae10cff4676f2cc1f4d68334ca27a0bWinson Chung } 107a62e9fd95ae10cff4676f2cc1f4d68334ca27a0bWinson Chung 10861967cb17f8fa9ee01f93e9f25a1074559b54cf3Winson Chung Rect getIconRect(int itemWidth, int itemHeight, int drawableWidth, int drawableHeight) { 10961967cb17f8fa9ee01f93e9f25a1074559b54cf3Winson Chung DragLayer dragLayer = mLauncher.getDragLayer(); 11061967cb17f8fa9ee01f93e9f25a1074559b54cf3Winson Chung 11161967cb17f8fa9ee01f93e9f25a1074559b54cf3Winson Chung // Find the rect to animate to (the view is center aligned) 11261967cb17f8fa9ee01f93e9f25a1074559b54cf3Winson Chung Rect to = new Rect(); 11361967cb17f8fa9ee01f93e9f25a1074559b54cf3Winson Chung dragLayer.getViewRectRelativeToSelf(this, to); 11461967cb17f8fa9ee01f93e9f25a1074559b54cf3Winson Chung int width = drawableWidth; 11561967cb17f8fa9ee01f93e9f25a1074559b54cf3Winson Chung int height = drawableHeight; 11661967cb17f8fa9ee01f93e9f25a1074559b54cf3Winson Chung int left = to.left + getPaddingLeft(); 11761967cb17f8fa9ee01f93e9f25a1074559b54cf3Winson Chung int top = to.top + (getMeasuredHeight() - height) / 2; 11861967cb17f8fa9ee01f93e9f25a1074559b54cf3Winson Chung to.set(left, top, left + width, top + height); 11961967cb17f8fa9ee01f93e9f25a1074559b54cf3Winson Chung 12061967cb17f8fa9ee01f93e9f25a1074559b54cf3Winson Chung // Center the destination rect about the trash icon 12161967cb17f8fa9ee01f93e9f25a1074559b54cf3Winson Chung int xOffset = (int) -(itemWidth - width) / 2; 12261967cb17f8fa9ee01f93e9f25a1074559b54cf3Winson Chung int yOffset = (int) -(itemHeight - height) / 2; 12361967cb17f8fa9ee01f93e9f25a1074559b54cf3Winson Chung to.offset(xOffset, yOffset); 12461967cb17f8fa9ee01f93e9f25a1074559b54cf3Winson Chung 12561967cb17f8fa9ee01f93e9f25a1074559b54cf3Winson Chung return to; 12661967cb17f8fa9ee01f93e9f25a1074559b54cf3Winson Chung } 12761967cb17f8fa9ee01f93e9f25a1074559b54cf3Winson Chung 128a62e9fd95ae10cff4676f2cc1f4d68334ca27a0bWinson Chung @Override 12961fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung public DropTarget getDropTargetDelegate(DragObject d) { 13061fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung return null; 13161fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung } 1328dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen 1338dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen public void getLocationInDragLayer(int[] loc) { 1348dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 1358dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen } 13661fa4197c4316bb0f9b05fcefb676f86197a2273Winson Chung} 137