| /* |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.launcher3.shortcuts; |
| |
| import android.animation.Animator; |
| import android.animation.AnimatorListenerAdapter; |
| import android.animation.AnimatorSet; |
| import android.annotation.TargetApi; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.graphics.Bitmap; |
| import android.graphics.Point; |
| import android.graphics.Rect; |
| import android.os.Build; |
| import android.os.Handler; |
| import android.os.Looper; |
| import android.text.TextUtils; |
| import android.util.AttributeSet; |
| import android.view.LayoutInflater; |
| import android.view.MotionEvent; |
| import android.view.View; |
| import android.view.ViewConfiguration; |
| import android.widget.LinearLayout; |
| |
| import com.android.launcher3.BubbleTextView; |
| import com.android.launcher3.DragSource; |
| import com.android.launcher3.DropTarget; |
| import com.android.launcher3.ItemInfo; |
| import com.android.launcher3.Launcher; |
| import com.android.launcher3.LauncherAnimUtils; |
| import com.android.launcher3.LauncherAppState; |
| import com.android.launcher3.LauncherModel; |
| import com.android.launcher3.R; |
| import com.android.launcher3.ShortcutInfo; |
| import com.android.launcher3.Utilities; |
| import com.android.launcher3.Workspace; |
| import com.android.launcher3.compat.UserHandleCompat; |
| import com.android.launcher3.dragndrop.DragController; |
| import com.android.launcher3.dragndrop.DragLayer; |
| import com.android.launcher3.dragndrop.DragView; |
| import com.android.launcher3.logging.UserEventDispatcher; |
| import com.android.launcher3.userevent.nano.LauncherLogProto; |
| import com.android.launcher3.userevent.nano.LauncherLogProto.Target; |
| |
| import java.util.Collections; |
| import java.util.Comparator; |
| import java.util.List; |
| |
| /** |
| * A container for shortcuts to deep links within apps. |
| */ |
| @TargetApi(Build.VERSION_CODES.N) |
| public class DeepShortcutsContainer extends LinearLayout implements View.OnLongClickListener, |
| View.OnTouchListener, DragSource, DragController.DragListener, |
| UserEventDispatcher.LaunchSourceProvider { |
| private static final String TAG = "ShortcutsContainer"; |
| |
| private Launcher mLauncher; |
| private DeepShortcutManager mDeepShortcutsManager; |
| private final int mDragDeadzone; |
| private final int mStartDragThreshold; |
| private BubbleTextView mDeferredDragIcon; |
| private int mActivePointerId; |
| private Point mTouchDown = null; |
| private DragView mDragView; |
| private float mLastX, mLastY; |
| private float mDistanceDragged = 0; |
| private final Rect mTempRect = new Rect(); |
| private final int[] mTempXY = new int[2]; |
| private Point mIconLastTouchPos = new Point(); |
| private boolean mIsLeftAligned; |
| private boolean mIsAboveIcon; |
| private boolean mIsAnimatingOpen; |
| |
| /** |
| * Sorts shortcuts in rank order, with manifest shortcuts coming before dynamic shortcuts. |
| */ |
| private static final Comparator<ShortcutInfoCompat> sShortcutsComparator |
| = new Comparator<ShortcutInfoCompat>() { |
| @Override |
| public int compare(ShortcutInfoCompat a, ShortcutInfoCompat b) { |
| if (a.isDeclaredInManifest() && !b.isDeclaredInManifest()) { |
| return -1; |
| } |
| if (!a.isDeclaredInManifest() && b.isDeclaredInManifest()) { |
| return 1; |
| } |
| return Integer.compare(a.getRank(), b.getRank()); |
| } |
| }; |
| |
| private static final Comparator<ShortcutInfoCompat> sShortcutsComparatorReversed |
| = Collections.reverseOrder(sShortcutsComparator); |
| |
| public DeepShortcutsContainer(Context context, AttributeSet attrs, int defStyleAttr) { |
| super(context, attrs, defStyleAttr); |
| mLauncher = (Launcher) context; |
| mDeepShortcutsManager = LauncherAppState.getInstance().getShortcutManager(); |
| |
| mDragDeadzone = ViewConfiguration.get(context).getScaledTouchSlop(); |
| mStartDragThreshold = getResources().getDimensionPixelSize( |
| R.dimen.deep_shortcuts_start_drag_threshold); |
| } |
| |
| public DeepShortcutsContainer(Context context, AttributeSet attrs) { |
| this(context, attrs, 0); |
| } |
| |
| public DeepShortcutsContainer(Context context) { |
| this(context, null, 0); |
| } |
| |
| public void populateAndShow(final BubbleTextView originalIcon, final List<String> ids) { |
| // Add dummy views first, and populate with real shortcut info when ready. |
| final int spacing = getResources().getDimensionPixelSize(R.dimen.deep_shortcuts_spacing); |
| final LayoutInflater inflator = mLauncher.getLayoutInflater(); |
| for (int i = 0; i < ids.size(); i++) { |
| final View shortcut = inflator.inflate(R.layout.deep_shortcut, this, false); |
| if (i < ids.size() - 1) { |
| ((LayoutParams) shortcut.getLayoutParams()).bottomMargin = spacing; |
| } |
| addView(shortcut); |
| } |
| |
| measure(MeasureSpec.UNSPECIFIED, MeasureSpec.UNSPECIFIED); |
| animateOpen(originalIcon); |
| |
| deferDrag(originalIcon); |
| |
| // Load the shortcuts on a background thread and update the container as it animates. |
| final Looper workerLooper = LauncherModel.getWorkerLooper(); |
| final Handler uiHandler = new Handler(Looper.getMainLooper()); |
| final ItemInfo originalInfo = (ItemInfo) originalIcon.getTag(); |
| final UserHandleCompat user = originalInfo.user; |
| final ComponentName activity = originalInfo.getTargetComponent(); |
| new Handler(workerLooper).postAtFrontOfQueue(new Runnable() { |
| @Override |
| public void run() { |
| final List<ShortcutInfoCompat> shortcuts = mDeepShortcutsManager |
| .queryForShortcutsContainer(activity, ids, user); |
| // We want the lowest rank to be closest to the user's finger. |
| final Comparator<ShortcutInfoCompat> shortcutsComparator = mIsAboveIcon ? |
| sShortcutsComparatorReversed : sShortcutsComparator; |
| Collections.sort(shortcuts, shortcutsComparator); |
| for (int i = 0; i < shortcuts.size(); i++) { |
| final ShortcutInfoCompat shortcut = shortcuts.get(i); |
| final ShortcutInfo launcherShortcutInfo = ShortcutInfo |
| .fromDeepShortcutInfo(shortcut, mLauncher); |
| CharSequence shortLabel = shortcut.getShortLabel(); |
| CharSequence longLabel = shortcut.getLongLabel(); |
| uiHandler.post(new UpdateShortcutChild(i, launcherShortcutInfo, |
| shortLabel, longLabel)); |
| } |
| } |
| }); |
| } |
| |
| /** Updates the child of this container at the given index based on the given shortcut info. */ |
| private class UpdateShortcutChild implements Runnable { |
| private int mShortcutChildIndex; |
| private ShortcutInfo mShortcutChildInfo; |
| private CharSequence mShortLabel; |
| private CharSequence mLongLabel; |
| |
| public UpdateShortcutChild(int shortcutChildIndex, ShortcutInfo shortcutChildInfo, |
| CharSequence shortLabel, CharSequence longLabel) { |
| mShortcutChildIndex = shortcutChildIndex; |
| mShortcutChildInfo = shortcutChildInfo; |
| mShortLabel = shortLabel; |
| mLongLabel = longLabel; |
| } |
| |
| @Override |
| public void run() { |
| BubbleTextView shortcutView = getShortcutAt(mShortcutChildIndex).getBubbleText(); |
| shortcutView.applyFromShortcutInfo(mShortcutChildInfo, |
| LauncherAppState.getInstance().getIconCache()); |
| // Use the long label as long as it exists and fits. |
| int availableWidth = shortcutView.getWidth() - shortcutView.getTotalPaddingLeft() |
| - shortcutView.getTotalPaddingRight(); |
| boolean usingLongLabel = !TextUtils.isEmpty(mLongLabel) |
| && shortcutView.getPaint().measureText(mLongLabel.toString()) <= availableWidth; |
| shortcutView.setText(usingLongLabel ? mLongLabel : mShortLabel); |
| shortcutView.setOnClickListener(mLauncher); |
| shortcutView.setOnLongClickListener(DeepShortcutsContainer.this); |
| shortcutView.setOnTouchListener(DeepShortcutsContainer.this); |
| } |
| } |
| |
| private DeepShortcutView getShortcutAt(int index) { |
| return (DeepShortcutView) getChildAt(index); |
| } |
| |
| private void animateOpen(BubbleTextView originalIcon) { |
| orientAboutIcon(originalIcon); |
| |
| setVisibility(View.VISIBLE); |
| |
| final AnimatorSet shortcutAnims = LauncherAnimUtils.createAnimatorSet(); |
| final int numShortcuts = getChildCount(); |
| final int arrowOffset = getResources().getDimensionPixelSize( |
| R.dimen.deep_shortcuts_arrow_horizontal_offset); |
| final int pivotX = mIsLeftAligned ? arrowOffset : getMeasuredWidth() - arrowOffset; |
| final int pivotY = getShortcutAt(0).getMeasuredHeight() / 2; |
| for (int i = 0; i < numShortcuts; i++) { |
| DeepShortcutView deepShortcutView = getShortcutAt(i); |
| deepShortcutView.setPivotX(pivotX); |
| deepShortcutView.setPivotY(pivotY); |
| int animationIndex = mIsAboveIcon ? numShortcuts - i - 1 : i; |
| shortcutAnims.play(deepShortcutView.createOpenAnimation(animationIndex, mIsAboveIcon)); |
| } |
| shortcutAnims.addListener(new AnimatorListenerAdapter() { |
| @Override |
| public void onAnimationEnd(Animator animation) { |
| mIsAnimatingOpen = false; |
| } |
| }); |
| mIsAnimatingOpen = true; |
| shortcutAnims.start(); |
| } |
| |
| /** |
| * Orients this container above or below the given icon, aligning with the left or right. |
| * |
| * These are the preferred orientations, in order: |
| * - Above and left-aligned |
| * - Above and right-aligned |
| * - Below and left-aligned |
| * - Below and right-aligned |
| * |
| * So we always align left if there is enough horizontal space |
| * and align above if there is enough vertical space. |
| * |
| * TODO: draw arrow based on orientation. |
| */ |
| private void orientAboutIcon(BubbleTextView icon) { |
| int width = getMeasuredWidth(); |
| int height = getMeasuredHeight(); |
| |
| DragLayer dragLayer = mLauncher.getDragLayer(); |
| dragLayer.getDescendantRectRelativeToSelf(icon, mTempRect); |
| // Align left and above by default. |
| int x = mTempRect.left + icon.getPaddingLeft(); |
| int y = mTempRect.top - height; |
| Rect insets = dragLayer.getInsets(); |
| |
| mIsLeftAligned = x + width < dragLayer.getRight() - insets.right; |
| if (!mIsLeftAligned) { |
| x = mTempRect.right - width - icon.getPaddingRight(); |
| } |
| |
| mIsAboveIcon = mTempRect.top - height > dragLayer.getTop() + insets.top; |
| if (!mIsAboveIcon) { |
| y = mTempRect.bottom; |
| } |
| |
| // Insets are added later, so subtract them now. |
| y -= insets.top; |
| |
| setX(x); |
| setY(y); |
| } |
| |
| private void deferDrag(BubbleTextView originalIcon) { |
| mDeferredDragIcon = originalIcon; |
| showDragView(originalIcon); |
| mLauncher.getDragController().addDragListener(this); |
| } |
| |
| public BubbleTextView getDeferredDragIcon() { |
| return mDeferredDragIcon; |
| } |
| |
| private void showDragView(BubbleTextView originalIcon) { |
| // TODO: implement support for Drawable DragViews so we don't have to create a bitmap here. |
| Bitmap b = Utilities.createIconBitmap(originalIcon.getIcon(), mLauncher); |
| float scale = mLauncher.getDragLayer().getLocationInDragLayer(originalIcon, mTempXY); |
| int dragLayerX = Math.round(mTempXY[0] - (b.getWidth() - scale * originalIcon.getWidth()) / 2); |
| int dragLayerY = Math.round(mTempXY[1] - (b.getHeight() - scale * b.getHeight()) / 2 |
| - Workspace.DRAG_BITMAP_PADDING / 2) + originalIcon.getPaddingTop(); |
| int motionDownX = mLauncher.getDragController().getMotionDown().x; |
| int motionDownY = mLauncher.getDragController().getMotionDown().y; |
| final int registrationX = motionDownX - dragLayerX; |
| final int registrationY = motionDownY - dragLayerY; |
| |
| float scaleDps = getResources().getDimensionPixelSize(R.dimen.deep_shortcuts_drag_view_scale); |
| mDragView = new DragView(mLauncher, b, registrationX, registrationY, |
| 0, 0, b.getWidth(), b.getHeight(), 1f, scaleDps); |
| mLastX = mLastY = mDistanceDragged = 0; |
| mDragView.show(motionDownX, motionDownY); |
| } |
| |
| public boolean onForwardedEvent(MotionEvent ev, int activePointerId, Point touchDown) { |
| mActivePointerId = activePointerId; |
| mTouchDown = touchDown; |
| return dispatchTouchEvent(ev); |
| } |
| |
| @Override |
| public boolean onTouchEvent(MotionEvent ev) { |
| if (mDeferredDragIcon == null) { |
| return false; |
| } |
| |
| final int activePointerIndex = ev.findPointerIndex(mActivePointerId); |
| if (activePointerIndex < 0) { |
| return false; |
| } |
| final float x = ev.getX(activePointerIndex); |
| final float y = ev.getY(activePointerIndex); |
| |
| |
| int action = ev.getAction(); |
| // The event was in this container's coordinate system before this, |
| // but will be in DragLayer's coordinate system from now on. |
| Utilities.translateEventCoordinates(this, mLauncher.getDragLayer(), ev); |
| final int dragLayerX = (int) ev.getX(); |
| final int dragLayerY = (int) ev.getY(); |
| int childCount = getChildCount(); |
| if (action == MotionEvent.ACTION_MOVE) { |
| if (mLastX != 0 || mLastY != 0) { |
| mDistanceDragged += Math.hypot(mLastX - x, mLastY - y); |
| } |
| mLastX = x; |
| mLastY = y; |
| |
| boolean containerContainsTouch = x >= 0 && y >= 0 && x < getWidth() && y < getHeight(); |
| if (shouldStartDeferredDrag((int) x, (int) y, containerContainsTouch)) { |
| cleanupDeferredDrag(); |
| mDeferredDragIcon.getParent().requestDisallowInterceptTouchEvent(false); |
| mDeferredDragIcon.getOnLongClickListener().onLongClick(mDeferredDragIcon); |
| mLauncher.getDragController().onTouchEvent(ev); |
| return true; |
| } else { |
| // Determine whether touch is over a shortcut. |
| boolean hoveringOverShortcut = false; |
| for (int i = 0; i < childCount && !mIsAnimatingOpen; i++) { |
| DeepShortcutView shortcut = getShortcutAt(i); |
| if (shortcut.updateHoverState(containerContainsTouch, hoveringOverShortcut, y)) { |
| hoveringOverShortcut = true; |
| } |
| } |
| |
| if (!hoveringOverShortcut && mDistanceDragged > mDragDeadzone) { |
| // After dragging further than a small deadzone, |
| // have the drag view follow the user's finger. |
| mDragView.setVisibility(VISIBLE); |
| mDragView.move(dragLayerX, dragLayerY); |
| mDeferredDragIcon.setVisibility(INVISIBLE); |
| } else if (hoveringOverShortcut) { |
| // Jump drag view back to original place on grid, |
| // so user doesn't think they are still dragging. |
| // TODO: can we improve this interaction? maybe with a ghost icon or similar? |
| mDragView.setVisibility(INVISIBLE); |
| mDeferredDragIcon.setVisibility(VISIBLE); |
| } |
| } |
| } else if (action == MotionEvent.ACTION_UP) { |
| cleanupDeferredDrag(); |
| // Launch a shortcut if user was hovering over it. |
| for (int i = 0; i < childCount; i++) { |
| DeepShortcutView shortcut = getShortcutAt(i); |
| if (shortcut.isHoveringOver()) { |
| shortcut.getBubbleText().performClick(); |
| break; |
| } |
| } |
| } |
| return true; |
| } |
| |
| /** |
| * Determines whether the deferred drag should be started based on touch coordinates |
| * relative to the original icon and the shortcuts container. |
| * |
| * Current behavior: |
| * - Compute distance from original touch down to closest container edge. |
| * - Compute distance from latest touch (given x and y) and compare to original distance; |
| * if the new distance is larger than a threshold, the deferred drag should start. |
| * - Never defer the drag if this container contains the touch. |
| * |
| * @param x the x touch coordinate relative to this container |
| * @param y the y touch coordinate relative to this container |
| */ |
| private boolean shouldStartDeferredDrag(int x, int y, boolean containerContainsTouch) { |
| int closestEdgeY = mIsAboveIcon ? getMeasuredHeight() : 0; |
| double distToEdge = Math.abs(mTouchDown.y - closestEdgeY); |
| double newDistToEdge = Math.hypot(x - mTouchDown.x, y - closestEdgeY); |
| return !containerContainsTouch && (newDistToEdge - distToEdge > mStartDragThreshold); |
| } |
| |
| public void cleanupDeferredDrag() { |
| if (mDragView != null) { |
| mDragView.remove(); |
| } |
| mDeferredDragIcon.setVisibility(VISIBLE); |
| } |
| |
| @Override |
| public boolean onTouch(View v, MotionEvent ev) { |
| // Touched a shortcut, update where it was touched so we can drag from there on long click. |
| switch (ev.getAction()) { |
| case MotionEvent.ACTION_DOWN: |
| case MotionEvent.ACTION_MOVE: |
| mIconLastTouchPos.set((int) ev.getX(), (int) ev.getY()); |
| break; |
| } |
| return false; |
| } |
| |
| public boolean onLongClick(View v) { |
| // Return early if this is not initiated from a touch |
| if (!v.isInTouchMode()) return false; |
| // Return if global dragging is not enabled |
| if (!mLauncher.isDraggingEnabled()) return false; |
| |
| // Long clicked on a shortcut. |
| mLauncher.getWorkspace().beginDragShared(v, mIconLastTouchPos, this, false); |
| // TODO: support dragging from within folder without having to close it |
| mLauncher.closeFolder(); |
| return false; |
| } |
| |
| @Override |
| public boolean supportsFlingToDelete() { |
| return true; |
| } |
| |
| @Override |
| public boolean supportsAppInfoDropTarget() { |
| return true; |
| } |
| |
| @Override |
| public boolean supportsDeleteDropTarget() { |
| return true; |
| } |
| |
| @Override |
| public float getIntrinsicIconScaleFactor() { |
| return (float) getResources().getDimensionPixelSize(R.dimen.deep_shortcut_icon_size) |
| / mLauncher.getDeviceProfile().iconSizePx; |
| } |
| |
| @Override |
| public void onFlingToDeleteCompleted() { |
| // Don't care; ignore. |
| } |
| |
| @Override |
| public void onDropCompleted(View target, DropTarget.DragObject d, boolean isFlingToDelete, |
| boolean success) { |
| if (!success) { |
| d.dragView.remove(); |
| mLauncher.showWorkspace(true); |
| mLauncher.getDropTargetBar().onDragEnd(); |
| } |
| } |
| |
| @Override |
| public void onDragStart(DragSource source, ItemInfo info, int dragAction) { |
| // Either the original icon or one of the shortcuts was dragged. |
| // Hide the container, but don't remove it yet because that interferes with touch events. |
| setVisibility(INVISIBLE); |
| } |
| |
| @Override |
| public void onDragEnd() { |
| // Now remove the container. |
| mLauncher.closeShortcutsContainer(); |
| } |
| |
| @Override |
| public void fillInLaunchSourceData(View v, ItemInfo info, Target target, Target targetParent) { |
| target.itemType = LauncherLogProto.DEEPSHORTCUT; |
| // TODO: add target.rank |
| targetParent.containerType = LauncherLogProto.DEEPSHORTCUTS; |
| } |
| } |