| /* |
| * Copyright (C) 2014 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.systemui.recents.views; |
| |
| import android.app.ActivityManager; |
| import android.app.ActivityOptions; |
| import android.content.ActivityNotFoundException; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.graphics.Bitmap; |
| import android.graphics.Canvas; |
| import android.graphics.Rect; |
| import android.os.UserHandle; |
| import android.view.View; |
| import android.widget.FrameLayout; |
| import com.android.systemui.recents.Console; |
| import com.android.systemui.recents.Constants; |
| import com.android.systemui.recents.RecentsConfiguration; |
| import com.android.systemui.recents.model.SpaceNode; |
| import com.android.systemui.recents.model.Task; |
| import com.android.systemui.recents.model.TaskStack; |
| |
| import java.util.ArrayList; |
| |
| |
| /** |
| * This view is the the top level layout that contains TaskStacks (which are laid out according |
| * to their SpaceNode bounds. |
| */ |
| public class RecentsView extends FrameLayout implements TaskStackView.TaskStackViewCallbacks { |
| |
| /** The RecentsView callbacks */ |
| public interface RecentsViewCallbacks { |
| public void onTaskLaunching(); |
| } |
| |
| // The space partitioning root of this container |
| SpaceNode mBSP; |
| // Recents view callbacks |
| RecentsViewCallbacks mCb; |
| |
| public RecentsView(Context context) { |
| super(context); |
| setWillNotDraw(false); |
| } |
| |
| /** Sets the callbacks */ |
| public void setCallbacks(RecentsViewCallbacks cb) { |
| mCb = cb; |
| } |
| |
| /** Set/get the bsp root node */ |
| public void setBSP(SpaceNode n) { |
| mBSP = n; |
| |
| // Create and add all the stacks for this partition of space. |
| removeAllViews(); |
| ArrayList<TaskStack> stacks = mBSP.getStacks(); |
| for (TaskStack stack : stacks) { |
| TaskStackView stackView = new TaskStackView(getContext(), stack); |
| stackView.setCallbacks(this); |
| addView(stackView); |
| } |
| } |
| |
| /** Launches the first task from the first stack if possible */ |
| public boolean launchFirstTask() { |
| // Get the first stack view |
| int childCount = getChildCount(); |
| for (int i = 0; i < childCount; i++) { |
| TaskStackView stackView = (TaskStackView) getChildAt(i); |
| TaskStack stack = stackView.mStack; |
| ArrayList<Task> tasks = stack.getTasks(); |
| |
| // Get the first task in the stack |
| if (!tasks.isEmpty()) { |
| Task task = tasks.get(tasks.size() - 1); |
| TaskView tv = null; |
| |
| // Try and use the first child task view as the source of the launch animation |
| if (stackView.getChildCount() > 0) { |
| TaskView stv = (TaskView) stackView.getChildAt(stackView.getChildCount() - 1); |
| if (stv.getTask() == task) { |
| tv = stv; |
| } |
| } |
| onTaskLaunched(stackView, tv, stack, task); |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| @Override |
| protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { |
| int width = MeasureSpec.getSize(widthMeasureSpec); |
| int height = MeasureSpec.getSize(heightMeasureSpec); |
| int heightMode = MeasureSpec.getMode(heightMeasureSpec); |
| |
| Console.log(Constants.DebugFlags.UI.MeasureAndLayout, "[RecentsView|measure]", |
| "width: " + width + " height: " + height, Console.AnsiGreen); |
| Console.logTraceTime(Constants.DebugFlags.App.TimeRecentsStartup, |
| Constants.DebugFlags.App.TimeRecentsStartupKey, "RecentsView.onMeasure"); |
| |
| // We measure our stack views sans the status bar. It will handle the nav bar itself. |
| RecentsConfiguration config = RecentsConfiguration.getInstance(); |
| int childHeight = height - config.systemInsets.top; |
| |
| // Measure each child |
| int childCount = getChildCount(); |
| for (int i = 0; i < childCount; i++) { |
| final View child = getChildAt(i); |
| if (child.getVisibility() != GONE) { |
| child.measure(widthMeasureSpec, |
| MeasureSpec.makeMeasureSpec(childHeight, heightMode)); |
| } |
| } |
| |
| setMeasuredDimension(width, height); |
| } |
| |
| @Override |
| protected void onLayout(boolean changed, int left, int top, int right, int bottom) { |
| Console.log(Constants.DebugFlags.UI.MeasureAndLayout, "[RecentsView|layout]", |
| new Rect(left, top, right, bottom) + " changed: " + changed, Console.AnsiGreen); |
| Console.logTraceTime(Constants.DebugFlags.App.TimeRecentsStartup, |
| Constants.DebugFlags.App.TimeRecentsStartupKey, "RecentsView.onLayout"); |
| |
| // We offset our stack views by the status bar height. It will handle the nav bar itself. |
| RecentsConfiguration config = RecentsConfiguration.getInstance(); |
| top += config.systemInsets.top; |
| |
| // Layout each child |
| // XXX: Based on the space node for that task view |
| int childCount = getChildCount(); |
| for (int i = 0; i < childCount; i++) { |
| final View child = getChildAt(i); |
| if (child.getVisibility() != GONE) { |
| final int width = child.getMeasuredWidth(); |
| final int height = child.getMeasuredHeight(); |
| child.layout(left, top, left + width, top + height); |
| } |
| } |
| } |
| |
| @Override |
| protected void dispatchDraw(Canvas canvas) { |
| Console.log(Constants.DebugFlags.UI.Draw, "[RecentsView|dispatchDraw]", "", |
| Console.AnsiPurple); |
| super.dispatchDraw(canvas); |
| } |
| |
| @Override |
| protected boolean fitSystemWindows(Rect insets) { |
| Console.log(Constants.DebugFlags.UI.MeasureAndLayout, |
| "[RecentsView|fitSystemWindows]", "insets: " + insets, Console.AnsiGreen); |
| |
| // Update the configuration with the latest system insets and trigger a relayout |
| RecentsConfiguration config = RecentsConfiguration.getInstance(); |
| config.updateSystemInsets(insets); |
| requestLayout(); |
| |
| return true; |
| } |
| |
| /** Unfilters any filtered stacks */ |
| public boolean unfilterFilteredStacks() { |
| if (mBSP != null) { |
| // Check if there are any filtered stacks and unfilter them before we back out of Recents |
| boolean stacksUnfiltered = false; |
| ArrayList<TaskStack> stacks = mBSP.getStacks(); |
| for (TaskStack stack : stacks) { |
| if (stack.hasFilteredTasks()) { |
| stack.unfilterTasks(); |
| stacksUnfiltered = true; |
| } |
| } |
| return stacksUnfiltered; |
| } |
| return false; |
| } |
| |
| /**** TaskStackView.TaskStackCallbacks Implementation ****/ |
| |
| @Override |
| public void onTaskLaunched(final TaskStackView stackView, final TaskView tv, |
| final TaskStack stack, final Task task) { |
| // Notify any callbacks of the launching of a new task |
| if (mCb != null) { |
| mCb.onTaskLaunching(); |
| } |
| |
| final Runnable launchRunnable = new Runnable() { |
| @Override |
| public void run() { |
| TaskViewTransform transform; |
| View sourceView = tv; |
| int offsetX = 0; |
| int offsetY = 0; |
| int stackScroll = stackView.getStackScroll(); |
| if (tv == null) { |
| // If there is no actual task view, then use the stack view as the source view |
| // and then offset to the expected transform rect, but bound this to just |
| // outside the display rect (to ensure we don't animate from too far away) |
| RecentsConfiguration config = RecentsConfiguration.getInstance(); |
| sourceView = stackView; |
| transform = stackView.getStackTransform(stack.indexOfTask(task), stackScroll); |
| offsetX = transform.rect.left; |
| offsetY = Math.min(transform.rect.top, config.displayRect.height()); |
| } else { |
| transform = stackView.getStackTransform(stack.indexOfTask(task), stackScroll); |
| } |
| |
| // Compute the thumbnail to scale up from |
| ActivityOptions opts = null; |
| int thumbnailWidth = transform.rect.width(); |
| int thumbnailHeight = transform.rect.height(); |
| if (task.thumbnail != null && thumbnailWidth > 0 && thumbnailHeight > 0 && |
| task.thumbnail.getWidth() > 0 && task.thumbnail.getHeight() > 0) { |
| // Resize the thumbnail to the size of the view that we are animating from |
| Bitmap b = Bitmap.createBitmap(thumbnailWidth, thumbnailHeight, |
| Bitmap.Config.ARGB_8888); |
| Canvas c = new Canvas(b); |
| c.drawBitmap(task.thumbnail, |
| new Rect(0, 0, task.thumbnail.getWidth(), task.thumbnail.getHeight()), |
| new Rect(0, 0, thumbnailWidth, thumbnailHeight), null); |
| c.setBitmap(null); |
| opts = ActivityOptions.makeThumbnailScaleUpAnimation(sourceView, |
| b, offsetX, offsetY); |
| } |
| |
| |
| if (task.isActive) { |
| // Bring an active task to the foreground |
| ActivityManager am = (ActivityManager) |
| stackView.getContext().getSystemService(Context.ACTIVITY_SERVICE); |
| if (opts != null) { |
| am.moveTaskToFront(task.key.id, ActivityManager.MOVE_TASK_WITH_HOME, |
| opts.toBundle()); |
| } else { |
| am.moveTaskToFront(task.key.id, ActivityManager.MOVE_TASK_WITH_HOME); |
| } |
| } else { |
| // Launch the activity with the desired animation |
| Intent i = new Intent(task.key.baseIntent); |
| i.setFlags(Intent.FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY |
| | Intent.FLAG_ACTIVITY_TASK_ON_HOME |
| | Intent.FLAG_ACTIVITY_NEW_TASK); |
| try { |
| if (opts != null) { |
| getContext().startActivityAsUser(i, opts.toBundle(), |
| UserHandle.CURRENT); |
| } else { |
| getContext().startActivityAsUser(i, UserHandle.CURRENT); |
| } |
| } catch (ActivityNotFoundException anfe) { |
| Console.logError(getContext(), "Could not start Activity"); |
| } |
| } |
| |
| Console.logTraceTime(Constants.DebugFlags.App.TimeRecentsLaunchTask, |
| Constants.DebugFlags.App.TimeRecentsLaunchKey, "startActivity"); |
| } |
| }; |
| |
| Console.logTraceTime(Constants.DebugFlags.App.TimeRecentsLaunchTask, |
| Constants.DebugFlags.App.TimeRecentsLaunchKey, "onTaskLaunched"); |
| |
| // Launch the app right away if there is no task view, otherwise, animate the icon out first |
| if (tv == null || !Constants.Values.TaskView.AnimateFrontTaskIconOnLeavingRecents) { |
| post(launchRunnable); |
| } else { |
| tv.animateOnLeavingRecents(launchRunnable); |
| } |
| } |
| } |