| /* |
| * 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.ActivityOptions; |
| import android.app.TaskStackBuilder; |
| import android.content.ActivityNotFoundException; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.graphics.Bitmap; |
| import android.graphics.Canvas; |
| import android.graphics.Rect; |
| import android.net.Uri; |
| import android.os.UserHandle; |
| import android.provider.Settings; |
| import android.view.LayoutInflater; |
| import android.view.View; |
| import android.view.WindowInsets; |
| 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.RecentsPackageMonitor; |
| import com.android.systemui.recents.RecentsTaskLoader; |
| 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; |
| import java.util.Set; |
| |
| |
| /** |
| * 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, |
| RecentsPackageMonitor.PackageCallbacks { |
| |
| /** The RecentsView callbacks */ |
| public interface RecentsViewCallbacks { |
| public void onTaskLaunching(); |
| } |
| |
| // The space partitioning root of this container |
| SpaceNode mBSP; |
| // Whether there are any tasks |
| boolean mHasTasks; |
| // Search bar view |
| View mSearchBar; |
| // Recents view callbacks |
| RecentsViewCallbacks mCb; |
| |
| LayoutInflater mInflater; |
| |
| public RecentsView(Context context) { |
| super(context); |
| mInflater = LayoutInflater.from(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. |
| mHasTasks = false; |
| removeAllViews(); |
| ArrayList<TaskStack> stacks = mBSP.getStacks(); |
| for (TaskStack stack : stacks) { |
| TaskStackView stackView = new TaskStackView(getContext(), stack); |
| stackView.setCallbacks(this); |
| addView(stackView); |
| mHasTasks |= (stack.getTaskCount() > 0); |
| } |
| } |
| |
| /** Launches the focused task from the first stack if possible */ |
| public boolean launchFocusedTask() { |
| // Get the first stack view |
| int childCount = getChildCount(); |
| for (int i = 0; i < childCount; i++) { |
| View child = getChildAt(i); |
| if (child instanceof TaskStackView) { |
| TaskStackView stackView = (TaskStackView) child; |
| TaskStack stack = stackView.mStack; |
| // Iterate the stack views and try and find the focused task |
| int taskCount = stackView.getChildCount(); |
| for (int j = 0; j < taskCount; j++) { |
| TaskView tv = (TaskView) stackView.getChildAt(j); |
| Task task = tv.getTask(); |
| if (tv.isFocusedTask()) { |
| if (Console.Enabled) { |
| Console.log(Constants.Log.UI.Focus, "[RecentsView|launchFocusedTask]", |
| "Found focused Task"); |
| } |
| onTaskLaunched(stackView, tv, stack, task); |
| return true; |
| } |
| } |
| } |
| } |
| if (Console.Enabled) { |
| Console.log(Constants.Log.UI.Focus, "[RecentsView|launchFocusedTask]", |
| "No Tasks focused"); |
| } |
| return false; |
| } |
| |
| /** 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++) { |
| View child = getChildAt(i); |
| if (child instanceof TaskStackView) { |
| TaskStackView stackView = (TaskStackView) child; |
| 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; |
| } |
| |
| /** Requests all task stacks to start their enter-recents animation */ |
| public void startOnEnterAnimation() { |
| int childCount = getChildCount(); |
| for (int i = 0; i < childCount; i++) { |
| View child = getChildAt(i); |
| if (child instanceof TaskStackView) { |
| TaskStackView stackView = (TaskStackView) child; |
| stackView.startOnEnterAnimation(); |
| } |
| } |
| } |
| |
| /** Adds the search bar */ |
| public void setSearchBar(View searchBar) { |
| // Create the search bar (and hide it if we have no recent tasks) |
| if (Constants.DebugFlags.App.EnableSearchLayout) { |
| // Remove the previous search bar if one exists |
| if (mSearchBar != null && indexOfChild(mSearchBar) > -1) { |
| removeView(mSearchBar); |
| } |
| // Add the new search bar |
| if (searchBar != null) { |
| mSearchBar = searchBar; |
| mSearchBar.setVisibility(mHasTasks ? View.VISIBLE : View.GONE); |
| addView(mSearchBar); |
| |
| if (Console.Enabled) { |
| Console.log(Constants.Log.App.SystemUIHandshake, "[RecentsView|setSearchBar]", |
| "" + (mSearchBar.getVisibility() == View.VISIBLE), |
| Console.AnsiBlue); |
| } |
| } |
| } |
| } |
| |
| /** |
| * This is called with the full size of the window since we are handling our own insets. |
| */ |
| @Override |
| protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { |
| int width = MeasureSpec.getSize(widthMeasureSpec); |
| int widthMode = MeasureSpec.getMode(widthMeasureSpec); |
| int height = MeasureSpec.getSize(heightMeasureSpec); |
| int heightMode = MeasureSpec.getMode(heightMeasureSpec); |
| |
| if (Console.Enabled) { |
| Console.log(Constants.Log.UI.MeasureAndLayout, "[RecentsView|measure]", |
| "width: " + width + " height: " + height, Console.AnsiGreen); |
| Console.logTraceTime(Constants.Log.App.TimeRecentsStartup, |
| Constants.Log.App.TimeRecentsStartupKey, "RecentsView.onMeasure"); |
| } |
| |
| // Get the search bar bounds and measure the search bar layout |
| RecentsConfiguration config = RecentsConfiguration.getInstance(); |
| if (mSearchBar != null) { |
| Rect searchBarSpaceBounds = new Rect(); |
| config.getSearchBarBounds(width, height - config.systemInsets.top, searchBarSpaceBounds); |
| mSearchBar.measure( |
| MeasureSpec.makeMeasureSpec(searchBarSpaceBounds.width(), MeasureSpec.EXACTLY), |
| MeasureSpec.makeMeasureSpec(searchBarSpaceBounds.height(), MeasureSpec.EXACTLY)); |
| } |
| |
| // We give the full width of the space, not including the right nav bar insets in landscape, |
| // to the stack view, since we want the tasks to render under the search bar in landscape. |
| // In addition, we give it the full height, not including the top inset or search bar space, |
| // since we want the tasks to render under the navigation buttons in portrait. |
| Rect taskStackBounds = new Rect(); |
| config.getTaskStackBounds(width, height, taskStackBounds); |
| int childWidth = width - config.systemInsets.right; |
| int childHeight = taskStackBounds.height() - config.systemInsets.top; |
| |
| // Measure each TaskStackView |
| int childCount = getChildCount(); |
| for (int i = 0; i < childCount; i++) { |
| View child = getChildAt(i); |
| if (child instanceof TaskStackView && child.getVisibility() != GONE) { |
| child.measure(MeasureSpec.makeMeasureSpec(childWidth, widthMode), |
| MeasureSpec.makeMeasureSpec(childHeight, heightMode)); |
| } |
| } |
| |
| setMeasuredDimension(width, height); |
| } |
| |
| /** |
| * This is called with the full size of the window since we are handling our own insets. |
| */ |
| @Override |
| protected void onLayout(boolean changed, int left, int top, int right, int bottom) { |
| if (Console.Enabled) { |
| Console.log(Constants.Log.UI.MeasureAndLayout, "[RecentsView|layout]", |
| new Rect(left, top, right, bottom) + " changed: " + changed, Console.AnsiGreen); |
| Console.logTraceTime(Constants.Log.App.TimeRecentsStartup, |
| Constants.Log.App.TimeRecentsStartupKey, "RecentsView.onLayout"); |
| } |
| |
| // Get the search bar bounds so that we lay it out |
| RecentsConfiguration config = RecentsConfiguration.getInstance(); |
| if (mSearchBar != null) { |
| Rect searchBarSpaceBounds = new Rect(); |
| config.getSearchBarBounds(getMeasuredWidth(), getMeasuredHeight(), searchBarSpaceBounds); |
| mSearchBar.layout(config.systemInsets.left + searchBarSpaceBounds.left, |
| config.systemInsets.top + searchBarSpaceBounds.top, |
| config.systemInsets.left + mSearchBar.getMeasuredWidth(), |
| config.systemInsets.top + mSearchBar.getMeasuredHeight()); |
| } |
| |
| // We offset the stack view by the left inset (if any), but lay it out under the search bar. |
| // In addition, we offset our stack views by the top inset and search bar height, but not |
| // the bottom insets because we want it to render under the navigation buttons. |
| Rect taskStackBounds = new Rect(); |
| config.getTaskStackBounds(getMeasuredWidth(), getMeasuredHeight(), taskStackBounds); |
| left += config.systemInsets.left; |
| top += config.systemInsets.top + taskStackBounds.top; |
| |
| // Layout each child |
| // XXX: Based on the space node for that task view |
| int childCount = getChildCount(); |
| for (int i = 0; i < childCount; i++) { |
| View child = getChildAt(i); |
| if (child instanceof TaskStackView && child.getVisibility() != GONE) { |
| TaskStackView tsv = (TaskStackView) child; |
| child.layout(left, top, left + tsv.getMeasuredWidth(), top + tsv.getMeasuredHeight()); |
| } |
| } |
| } |
| |
| /** Focuses the next task in the first stack view */ |
| public void focusNextTask(boolean forward) { |
| // Get the first stack view |
| TaskStackView stackView = null; |
| int childCount = getChildCount(); |
| for (int i = 0; i < childCount; i++) { |
| View child = getChildAt(i); |
| if (child instanceof TaskStackView) { |
| stackView = (TaskStackView) child; |
| break; |
| } |
| } |
| |
| if (stackView != null) { |
| stackView.focusNextTask(forward); |
| } |
| } |
| |
| @Override |
| protected void dispatchDraw(Canvas canvas) { |
| if (Console.Enabled) { |
| Console.log(Constants.Log.UI.Draw, "[RecentsView|dispatchDraw]", "", |
| Console.AnsiPurple); |
| } |
| super.dispatchDraw(canvas); |
| } |
| |
| @Override |
| public WindowInsets onApplyWindowInsets(WindowInsets insets) { |
| if (Console.Enabled) { |
| Console.log(Constants.Log.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.getSystemWindowInsets()); |
| requestLayout(); |
| |
| return insets.consumeSystemWindowInsets(false, false, false, 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 |
| RecentsTaskLoader.getInstance().getSystemServicesProxy() |
| .moveTaskToFront(task.key.id, opts); |
| } else { |
| // Launch the activity anew 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 { |
| UserHandle taskUser = new UserHandle(task.userId); |
| if (opts != null) { |
| getContext().startActivityAsUser(i, opts.toBundle(), taskUser); |
| } else { |
| getContext().startActivityAsUser(i, taskUser); |
| } |
| } catch (ActivityNotFoundException anfe) { |
| Console.logError(getContext(), "Could not start Activity"); |
| } |
| |
| // And clean up the old task |
| onTaskRemoved(task); |
| } |
| |
| Console.logTraceTime(Constants.Log.App.TimeRecentsLaunchTask, |
| Constants.Log.App.TimeRecentsLaunchKey, "startActivity"); |
| } |
| }; |
| |
| Console.logTraceTime(Constants.Log.App.TimeRecentsLaunchTask, |
| Constants.Log.App.TimeRecentsLaunchKey, "onTaskLaunched"); |
| |
| // Launch the app right away if there is no task view, otherwise, animate the icon out first |
| if (tv == null) { |
| post(launchRunnable); |
| } else { |
| tv.animateOnLeavingRecents(launchRunnable); |
| } |
| } |
| |
| @Override |
| public void onTaskAppInfoLaunched(Task t) { |
| // Create a new task stack with the application info details activity |
| Intent baseIntent = t.key.baseIntent; |
| Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS, |
| Uri.fromParts("package", baseIntent.getComponent().getPackageName(), null)); |
| intent.setComponent(intent.resolveActivity(getContext().getPackageManager())); |
| TaskStackBuilder.create(getContext()) |
| .addNextIntentWithParentStack(intent).startActivities(); |
| } |
| |
| @Override |
| public void onTaskRemoved(Task t) { |
| // Remove any stored data from the loader. We currently don't bother notifying the views |
| // that the data has been unloaded because at the point we call onTaskRemoved(), the views |
| // either don't need to be updated, or have already been removed. |
| RecentsTaskLoader loader = RecentsTaskLoader.getInstance(); |
| loader.deleteTaskData(t, false); |
| |
| // Remove the old task from activity manager |
| int flags = t.key.baseIntent.getFlags(); |
| boolean isDocument = (flags & Intent.FLAG_ACTIVITY_NEW_DOCUMENT) == |
| Intent.FLAG_ACTIVITY_NEW_DOCUMENT; |
| RecentsTaskLoader.getInstance().getSystemServicesProxy().removeTask(t.key.id, |
| isDocument); |
| } |
| |
| /**** RecentsPackageMonitor.PackageCallbacks Implementation ****/ |
| |
| @Override |
| public void onComponentRemoved(Set<ComponentName> cns) { |
| // Propagate this event down to each task stack view |
| int childCount = getChildCount(); |
| for (int i = 0; i < childCount; i++) { |
| View child = getChildAt(i); |
| if (child instanceof TaskStackView) { |
| TaskStackView stackView = (TaskStackView) child; |
| stackView.onComponentRemoved(cns); |
| } |
| } |
| } |
| } |