Allowing multiple preferred drag regions for tablets. (882072ba) · Commits · e / os / android_frameworks_base

packages/SystemUI/src/com/android/systemui/recents/model/TaskStack.java

+33 −4

Original line number	Diff line number	Diff line
		@@ -16,11 +16,13 @@

		package com.android.systemui.recents.model;

		import android.animation.ObjectAnimator;
		import android.app.ActivityManager;
		import android.content.Context;
		import android.graphics.Color;
		import android.graphics.Rect;
		import android.graphics.RectF;
		import android.graphics.drawable.ColorDrawable;
		import com.android.systemui.R;
		import com.android.systemui.recents.Constants;
		import com.android.systemui.recents.misc.NamedCounter;
		@@ -193,10 +195,37 @@ public class TaskStack {
		BOTTOM(DOCKED_STACK_CREATE_MODE_BOTTOM_OR_RIGHT, 192,
		new RectF(0, 0.7f, 1, 1), new RectF(0, 0.7f, 1, 1), new RectF(0, 0, 1, 0.3f));

		public final int createMode;
		// Represents the view state of this dock state
		public class ViewState {
		public final int dockAreaAlpha;
		private final RectF touchArea;
		public final ColorDrawable dockAreaOverlay;
		private ObjectAnimator dockAreaOverlayAnimator;

		private ViewState(int alpha) {
		dockAreaAlpha = alpha;
		dockAreaOverlay = new ColorDrawable(0xFFffffff);
		dockAreaOverlay.setAlpha(0);
		}

		/**
		* Creates a new alpha animation.
		*/
		public void startAlphaAnimation(int alpha, int duration) {
		if (dockAreaOverlay.getAlpha() != alpha) {
		if (dockAreaOverlayAnimator != null) {
		dockAreaOverlayAnimator.cancel();
		}
		dockAreaOverlayAnimator = ObjectAnimator.ofInt(dockAreaOverlay, "alpha", alpha);
		dockAreaOverlayAnimator.setDuration(duration);
		dockAreaOverlayAnimator.start();
		}
		}
		}

		public final int createMode;
		public final ViewState viewState;
		private final RectF dockArea;
		private final RectF touchArea;
		private final RectF stackArea;

		/**
		@@ -207,9 +236,9 @@ public class TaskStack {
		DockState(int createMode, int dockAreaAlpha, RectF touchArea, RectF dockArea,
		RectF stackArea) {
		this.createMode = createMode;
		this.dockAreaAlpha = dockAreaAlpha;
		this.touchArea = touchArea;
		this.viewState = new ViewState(dockAreaAlpha);
		this.dockArea = dockArea;
		this.touchArea = touchArea;
		this.stackArea = stackArea;
		}

packages/SystemUI/src/com/android/systemui/recents/views/RecentsView.java

+48 −34

Original line number	Diff line number	Diff line
		@@ -16,19 +16,17 @@

		package com.android.systemui.recents.views;

		import android.animation.ObjectAnimator;
		import android.animation.ValueAnimator;
		import android.app.ActivityManager;
		import android.app.ActivityOptions;
		import android.content.Context;
		import android.graphics.Bitmap;
		import android.graphics.Canvas;
		import android.graphics.Rect;
		import android.graphics.drawable.ColorDrawable;
		import android.graphics.drawable.Drawable;
		import android.os.Bundle;
		import android.os.IRemoteCallback;
		import android.os.RemoteException;
		import android.util.ArraySet;
		import android.util.AttributeSet;
		import android.util.Log;
		import android.util.SparseArray;
		@@ -38,7 +36,6 @@ import android.view.MotionEvent;
		import android.view.View;
		import android.view.WindowInsets;
		import android.view.WindowManagerGlobal;
		import android.view.animation.AccelerateInterpolator;
		import android.view.animation.AnimationUtils;
		import android.view.animation.Interpolator;
		import android.widget.FrameLayout;
		@@ -91,8 +88,12 @@ public class RecentsView extends FrameLayout implements TaskStackView.TaskStackV

		RecentsViewTouchHandler mTouchHandler;
		DragView mDragView;
		ColorDrawable mDockRegionOverlay;
		ObjectAnimator mDockRegionOverlayAnimator;
		TaskStack.DockState[] mVisibleDockStates = {
		TaskStack.DockState.LEFT,
		TaskStack.DockState.TOP,
		TaskStack.DockState.RIGHT,
		TaskStack.DockState.BOTTOM,
		};

		Interpolator mFastOutSlowInInterpolator;

		@@ -118,9 +119,6 @@ public class RecentsView extends FrameLayout implements TaskStackView.TaskStackV
		mFastOutSlowInInterpolator = AnimationUtils.loadInterpolator(context,
		com.android.internal.R.interpolator.fast_out_slow_in);
		mTouchHandler = new RecentsViewTouchHandler(this);
		mDockRegionOverlay = new ColorDrawable(0xFFffffff);
		mDockRegionOverlay.setAlpha(0);
		mDockRegionOverlay.setCallback(this);
		}

		/** Sets the callbacks */
		@@ -383,14 +381,23 @@ public class RecentsView extends FrameLayout implements TaskStackView.TaskStackV
		@Override
		protected void dispatchDraw(Canvas canvas) {
		super.dispatchDraw(canvas);
		if (mDockRegionOverlay.getAlpha() > 0) {
		mDockRegionOverlay.draw(canvas);
		for (int i = mVisibleDockStates.length - 1; i >= 0; i--) {
		Drawable d = mVisibleDockStates[i].viewState.dockAreaOverlay;
		if (d.getAlpha() > 0) {
		d.draw(canvas);
		}
		}
		}

		@Override
		protected boolean verifyDrawable(Drawable who) {
		return super.verifyDrawable(who) \|\| who == mDockRegionOverlay;
		for (int i = mVisibleDockStates.length - 1; i >= 0; i--) {
		Drawable d = mVisibleDockStates[i].viewState.dockAreaOverlay;
		if (d == who) {
		return true;
		}
		}
		return super.verifyDrawable(who);
		}

		/** Notifies each task view of the user interaction. */
		@@ -775,11 +782,17 @@ public class RecentsView extends FrameLayout implements TaskStackView.TaskStackV
		mDragView = event.dragView;
		addView(mDragView);

		updateDockRegion(TaskStack.DockState.NONE);
		updateVisibleDockRegions(mTouchHandler.getDockStatesForCurrentOrientation(),
		TaskStack.DockState.NONE.viewState.dockAreaAlpha);
		}

		public final void onBusEvent(DragDockStateChangedEvent event) {
		updateDockRegion(event.dockState);
		if (event.dockState == TaskStack.DockState.NONE) {
		updateVisibleDockRegions(mTouchHandler.getDockStatesForCurrentOrientation(),
		TaskStack.DockState.NONE.viewState.dockAreaAlpha);
		} else {
		updateVisibleDockRegions(new TaskStack.DockState[] {event.dockState}, -1);
		}
		}

		public final void onBusEvent(final DragEndEvent event) {
		@@ -790,8 +803,7 @@ public class RecentsView extends FrameLayout implements TaskStackView.TaskStackV
		// Remove the drag view
		removeView(mDragView);
		mDragView = null;
		mDockRegionOverlay.setAlpha(0);
		invalidate();
		updateVisibleDockRegions(null, -1);

		// Dock the new task if we are hovering over a valid dock state
		if (event.dockState != TaskStack.DockState.NONE) {
		@@ -818,7 +830,7 @@ public class RecentsView extends FrameLayout implements TaskStackView.TaskStackV
		.start();

		// Animate the overlay alpha back to 0
		updateDockRegionAlpha(0);
		updateVisibleDockRegions(null, -1);
		} else {
		event.postAnimationTrigger.decrement();
		}
		@@ -827,24 +839,26 @@ public class RecentsView extends FrameLayout implements TaskStackView.TaskStackV
		/**
		* Updates the dock region to match the specified dock state.
		*/
		private void updateDockRegion(TaskStack.DockState dockState) {
		TaskStack.DockState boundsDockState = dockState;
		if (dockState == TaskStack.DockState.NONE) {
		// If the dock state is null, then use the bounds of the preferred dock state for this
		// orientation
		boundsDockState = mTouchHandler.getPreferredDockStateForCurrentOrientation();
		}
		mDockRegionOverlay.setBounds(
		boundsDockState.getDockedBounds(getMeasuredWidth(), getMeasuredHeight()));
		updateDockRegionAlpha(dockState.dockAreaAlpha);
		private void updateVisibleDockRegions(TaskStack.DockState[] newDockStates, int overrideAlpha) {
		ArraySet<TaskStack.DockState> newDockStatesSet = new ArraySet<>();
		if (newDockStates != null) {
		for (TaskStack.DockState dockState : newDockStates) {
		newDockStatesSet.add(dockState);
		}
		}
		for (TaskStack.DockState dockState : mVisibleDockStates) {
		TaskStack.DockState.ViewState viewState = dockState.viewState;
		if (newDockStates == null \|\| !newDockStatesSet.contains(dockState)) {
		// This is no longer visible, so hide it
		viewState.startAlphaAnimation(0, 150);
		} else {
		// This state is now visible, update the bounds and show it
		int alpha = (overrideAlpha != -1 ? overrideAlpha : viewState.dockAreaAlpha);
		viewState.dockAreaOverlay.setBounds(
		dockState.getDockedBounds(getMeasuredWidth(), getMeasuredHeight()));
		viewState.dockAreaOverlay.setCallback(this);
		viewState.startAlphaAnimation(alpha, 150);
		}

		private void updateDockRegionAlpha(int alpha) {
		if (mDockRegionOverlayAnimator != null) {
		mDockRegionOverlayAnimator.cancel();
		}
		mDockRegionOverlayAnimator = ObjectAnimator.ofInt(mDockRegionOverlay, "alpha", alpha);
		mDockRegionOverlayAnimator.setDuration(150);
		mDockRegionOverlayAnimator.start();
		}
		}

packages/SystemUI/src/com/android/systemui/recents/views/RecentsViewTouchHandler.java

+17 −8

Original line number	Diff line number	Diff line
		@@ -19,6 +19,7 @@ package com.android.systemui.recents.views;
		import android.content.res.Configuration;
		import android.graphics.Point;
		import android.view.MotionEvent;
		import com.android.systemui.recents.RecentsConfiguration;
		import com.android.systemui.recents.events.EventBus;
		import com.android.systemui.recents.events.ui.dragndrop.DragDockStateChangedEvent;
		import com.android.systemui.recents.events.ui.dragndrop.DragEndEvent;
		@@ -32,13 +33,17 @@ import com.android.systemui.recents.model.TaskStack;
		* Represents the dock regions for each orientation.
		*/
		class DockRegion {
		public static TaskStack.DockState[] LANDSCAPE = {
		public static TaskStack.DockState[] PHONE_LANDSCAPE = {
		TaskStack.DockState.LEFT, TaskStack.DockState.RIGHT
		};
		public static TaskStack.DockState[] PORTRAIT = {
		public static TaskStack.DockState[] PHONE_PORTRAIT = {
		// We only allow docking to the top for now
		TaskStack.DockState.TOP
		};
		public static TaskStack.DockState[] TABLET_LANDSCAPE = {
		TaskStack.DockState.LEFT, TaskStack.DockState.RIGHT
		};
		public static TaskStack.DockState[] TABLET_PORTRAIT = PHONE_PORTRAIT;
		}

		/**
		@@ -60,12 +65,17 @@ class RecentsViewTouchHandler {
		mRv = rv;
		}

		public TaskStack.DockState getPreferredDockStateForCurrentOrientation() {
		/**
		* Returns the preferred dock states for the current orientation.
		*/
		public TaskStack.DockState[] getDockStatesForCurrentOrientation() {
		boolean isLandscape = mRv.getResources().getConfiguration().orientation ==
		Configuration.ORIENTATION_LANDSCAPE;
		RecentsConfiguration config = RecentsConfiguration.getInstance();
		TaskStack.DockState[] dockStates = isLandscape ?
		DockRegion.LANDSCAPE : DockRegion.PORTRAIT;
		return dockStates[0];
		(config.isLargeScreen ? DockRegion.TABLET_LANDSCAPE : DockRegion.PHONE_LANDSCAPE) :
		(config.isLargeScreen ? DockRegion.TABLET_PORTRAIT : DockRegion.PHONE_PORTRAIT);
		return dockStates;
		}

		/** Touch preprocessing for handling below */
		@@ -125,10 +135,9 @@ class RecentsViewTouchHandler {
		float y = evY - mDragView.getTopLeftOffset().y;

		// Update the dock state
		TaskStack.DockState[] dockStates = isLandscape ?
		DockRegion.LANDSCAPE : DockRegion.PORTRAIT;
		TaskStack.DockState[] dockStates = getDockStatesForCurrentOrientation();
		TaskStack.DockState foundDockState = TaskStack.DockState.NONE;
		for (int i = 0; i < dockStates.length; i++) {
		for (int i = dockStates.length - 1; i >= 0; i--) {
		TaskStack.DockState state = dockStates[i];
		if (state.touchAreaContainsPoint(width, height, evX, evY)) {
		foundDockState = state;