import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;
+import android.view.ViewStub;
import android.view.WindowInsets;
import android.widget.FrameLayout;
-
+import com.android.systemui.R;
import com.android.systemui.recents.Constants;
import com.android.systemui.recents.RecentsConfiguration;
import com.android.systemui.recents.misc.SystemServicesProxy;
import com.android.systemui.recents.model.TaskStack;
import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
/**
* This view is the the top level layout that contains TaskStacks (which are laid out according
public void onAllTaskViewsDismissed();
public void onExitToHomeAnimationTriggered();
public void onScreenPinningRequest();
+
+ public void onMultiStackAddStack();
+ public void onMultiStackResizeStack();
+ public void onMultiStackRemoveStack();
+ public void onMultiStackMoveTask(Task t);
}
RecentsConfiguration mConfig;
LayoutInflater mInflater;
DebugOverlayView mDebugOverlay;
+ ViewStub mMultiStackDebugStub;
+ View mMultiStackDebugView;
+ RecentsViewLayoutAlgorithm mLayoutAlgorithm;
ArrayList<TaskStack> mStacks;
+ List<TaskStackView> mImmutableTaskStackViews = new ArrayList<TaskStackView>();
View mSearchBar;
RecentsViewCallbacks mCb;
super(context, attrs, defStyleAttr, defStyleRes);
mConfig = RecentsConfiguration.getInstance();
mInflater = LayoutInflater.from(context);
+ mLayoutAlgorithm = new RecentsViewLayoutAlgorithm(mConfig);
+ }
+
+ @Override
+ protected void onFinishInflate() {
+ if (!mConfig.multiStackEnabled) return;
+
+ mMultiStackDebugStub = (ViewStub) findViewById(R.id.multistack_debug_view_stub);
+ if (mMultiStackDebugView == null) {
+ mMultiStackDebugView = mMultiStackDebugStub.inflate();
+ mMultiStackDebugView.findViewById(R.id.add_stack).setOnClickListener(new View.OnClickListener() {
+ @Override
+ public void onClick(View v) {
+ mCb.onMultiStackAddStack();
+ }
+ });
+ mMultiStackDebugView.findViewById(R.id.resize_stack).setOnClickListener(new View.OnClickListener() {
+ @Override
+ public void onClick(View v) {
+ mCb.onMultiStackResizeStack();
+ }
+ });
+ }
}
/** Sets the callbacks */
int numStacks = stacks.size();
// Make a list of the stack view children only
- ArrayList<TaskStackView> stackViews = new ArrayList<TaskStackView>();
- int childCount = getChildCount();
- for (int i = 0; i < childCount; i++) {
- View child = getChildAt(i);
- if (child != mSearchBar) {
- stackViews.add((TaskStackView) child);
- }
- }
+ ArrayList<TaskStackView> stackViewsList = new ArrayList<TaskStackView>();
+ List<TaskStackView> stackViews = getTaskStackViews();
// Remove all/extra stack views
int numTaskStacksToKeep = 0; // Keep no tasks if we are recreating the layout
if (mConfig.launchedReuseTaskStackViews) {
- numTaskStacksToKeep = Math.min(childCount, numStacks);
+ numTaskStacksToKeep = Math.min(stackViews.size(), numStacks);
}
for (int i = stackViews.size() - 1; i >= numTaskStacksToKeep; i--) {
removeView(stackViews.get(i));
stackViews.remove(i);
}
+ stackViewsList.addAll(stackViews);
// Update the stack views that we are keeping
for (int i = 0; i < numTaskStacksToKeep; i++) {
TaskStackView stackView = new TaskStackView(getContext(), stack);
stackView.setCallbacks(this);
addView(stackView);
+ stackViewsList.add(stackView);
}
+ // Set the immutable stack views list
+ mImmutableTaskStackViews = Collections.unmodifiableList(stackViewsList);
+
// Enable debug mode drawing on all the stacks if necessary
if (mConfig.debugModeEnabled) {
- for (int i = childCount - 1; i >= 0; i--) {
- View v = getChildAt(i);
- if (v != mSearchBar) {
- TaskStackView stackView = (TaskStackView) v;
- stackView.setDebugOverlay(mDebugOverlay);
- }
+ for (int i = mImmutableTaskStackViews.size() - 1; i >= 0; i--) {
+ TaskStackView stackView = mImmutableTaskStackViews.get(i);
+ stackView.setDebugOverlay(mDebugOverlay);
}
}
+ // Bring the debug view to the front
+ if (mMultiStackDebugView != null) {
+ mMultiStackDebugView.bringToFront();
+ }
+
// Trigger a new layout
requestLayout();
}
+ /** Gets the list of task views */
+ List<TaskStackView> getTaskStackViews() {
+ return mImmutableTaskStackViews;
+ }
+
/** 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 != mSearchBar) {
- 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()) {
- onTaskViewClicked(stackView, tv, stack, task, false);
- return true;
- }
+ List<TaskStackView> stackViews = getTaskStackViews();
+ int stackCount = stackViews.size();
+ for (int i = 0; i < stackCount; i++) {
+ TaskStackView stackView = stackViews.get(i);
+ TaskStack stack = stackView.getStack();
+ // Iterate the stack views and try and find the focused task
+ List<TaskView> taskViews = stackView.getTaskViews();
+ int taskViewCount = taskViews.size();
+ for (int j = 0; j < taskViewCount; j++) {
+ TaskView tv = taskViews.get(j);
+ Task task = tv.getTask();
+ if (tv.isFocusedTask()) {
+ onTaskViewClicked(stackView, tv, stack, task, false);
+ return true;
}
}
}
/** Launches the task that Recents was launched from, if possible */
public boolean launchPreviousTask() {
// Get the first stack view
- int childCount = getChildCount();
- for (int i = 0; i < childCount; i++) {
- View child = getChildAt(i);
- if (child != mSearchBar) {
- TaskStackView stackView = (TaskStackView) child;
- TaskStack stack = stackView.mStack;
- ArrayList<Task> tasks = stack.getTasks();
-
- // Find the launch task in the stack
- if (!tasks.isEmpty()) {
- int taskCount = tasks.size();
- for (int j = 0; j < taskCount; j++) {
- if (tasks.get(j).isLaunchTarget) {
- Task task = tasks.get(j);
- TaskView tv = stackView.getChildViewForTask(task);
- onTaskViewClicked(stackView, tv, stack, task, false);
- return true;
- }
+ List<TaskStackView> stackViews = getTaskStackViews();
+ int stackCount = stackViews.size();
+ for (int i = 0; i < stackCount; i++) {
+ TaskStackView stackView = stackViews.get(i);
+ TaskStack stack = stackView.getStack();
+ ArrayList<Task> tasks = stack.getTasks();
+
+ // Find the launch task in the stack
+ if (!tasks.isEmpty()) {
+ int taskCount = tasks.size();
+ for (int j = 0; j < taskCount; j++) {
+ if (tasks.get(j).isLaunchTarget) {
+ Task task = tasks.get(j);
+ TaskView tv = stackView.getChildViewForTask(task);
+ onTaskViewClicked(stackView, tv, stack, task, false);
+ return true;
}
}
}
// to ensure that it runs
ctx.postAnimationTrigger.increment();
- int childCount = getChildCount();
- for (int i = 0; i < childCount; i++) {
- View child = getChildAt(i);
- if (child != mSearchBar) {
- TaskStackView stackView = (TaskStackView) child;
- stackView.startEnterRecentsAnimation(ctx);
- }
+ List<TaskStackView> stackViews = getTaskStackViews();
+ int stackCount = stackViews.size();
+ for (int i = 0; i < stackCount; i++) {
+ TaskStackView stackView = stackViews.get(i);
+ stackView.startEnterRecentsAnimation(ctx);
}
ctx.postAnimationTrigger.decrement();
}
// We have to increment/decrement the post animation trigger in case there are no children
// to ensure that it runs
ctx.postAnimationTrigger.increment();
- int childCount = getChildCount();
- for (int i = 0; i < childCount; i++) {
- View child = getChildAt(i);
- if (child != mSearchBar) {
- TaskStackView stackView = (TaskStackView) child;
- stackView.startExitToHomeAnimation(ctx);
- }
+ List<TaskStackView> stackViews = getTaskStackViews();
+ int stackCount = stackViews.size();
+ for (int i = 0; i < stackCount; i++) {
+ TaskStackView stackView = stackViews.get(i);
+ stackView.startExitToHomeAnimation(ctx);
}
ctx.postAnimationTrigger.decrement();
}
Rect taskStackBounds = new Rect();
- mConfig.getTaskStackBounds(width, height, mConfig.systemInsets.top,
+ mConfig.getAvailableTaskStackBounds(width, height, mConfig.systemInsets.top,
mConfig.systemInsets.right, taskStackBounds);
- // Measure each TaskStackView with the full width and height of the window since the
+ // Measure each TaskStackView with the full width and height of the window since the
// transition view is a child of that stack view
- int childCount = getChildCount();
- for (int i = 0; i < childCount; i++) {
- View child = getChildAt(i);
- if (child != mSearchBar && child.getVisibility() != GONE) {
- TaskStackView tsv = (TaskStackView) child;
- // Set the insets to be the top/left inset + search bounds
- tsv.setStackInsetRect(taskStackBounds);
- tsv.measure(widthMeasureSpec, heightMeasureSpec);
+ List<TaskStackView> stackViews = getTaskStackViews();
+ List<Rect> stackViewsBounds = mLayoutAlgorithm.computeStackRects(stackViews,
+ taskStackBounds);
+ int stackCount = stackViews.size();
+ for (int i = 0; i < stackCount; i++) {
+ TaskStackView stackView = stackViews.get(i);
+ if (stackView.getVisibility() != GONE) {
+ // We are going to measure the TaskStackView with the whole RecentsView dimensions,
+ // but the actual stack is going to be inset to the bounds calculated by the layout
+ // algorithm
+ stackView.setStackInsetRect(stackViewsBounds.get(i));
+ stackView.measure(widthMeasureSpec, heightMeasureSpec);
}
}
+ // Measure the multistack debug view
+ if (mMultiStackDebugView != null) {
+ mMultiStackDebugView.measure(width, height);
+ }
+
setMeasuredDimension(width, height);
}
// Layout each TaskStackView with the full width and height of the window since the
// transition view is a child of that stack view
- int childCount = getChildCount();
- for (int i = 0; i < childCount; i++) {
- View child = getChildAt(i);
- if (child != mSearchBar && child.getVisibility() != GONE) {
- child.layout(left, top, left + child.getMeasuredWidth(),
- top + child.getMeasuredHeight());
+ List<TaskStackView> stackViews = getTaskStackViews();
+ int stackCount = stackViews.size();
+ for (int i = 0; i < stackCount; i++) {
+ TaskStackView stackView = stackViews.get(i);
+ if (stackView.getVisibility() != GONE) {
+ stackView.layout(left, top, left + stackView.getMeasuredWidth(),
+ top + stackView.getMeasuredHeight());
}
}
+
+ // Layout the multistack debug view
+ if (mMultiStackDebugView != null) {
+ Rect taskStackBounds = new Rect();
+ mConfig.getAvailableTaskStackBounds(getMeasuredWidth(), getMeasuredHeight(),
+ mConfig.systemInsets.top, mConfig.systemInsets.right, taskStackBounds);
+ mMultiStackDebugView.layout(left,
+ taskStackBounds.bottom - mConfig.systemInsets.bottom -
+ mMultiStackDebugView.getMeasuredHeight(),
+ left + mMultiStackDebugView.getMeasuredWidth(),
+ taskStackBounds.bottom - mConfig.systemInsets.bottom);
+ }
}
@Override
/** Notifies each task view of the user interaction. */
public void onUserInteraction() {
// Get the first stack view
- int childCount = getChildCount();
- for (int i = 0; i < childCount; i++) {
- View child = getChildAt(i);
- if (child != mSearchBar) {
- TaskStackView stackView = (TaskStackView) child;
- stackView.onUserInteraction();
- }
+ List<TaskStackView> stackViews = getTaskStackViews();
+ int stackCount = stackViews.size();
+ for (int i = 0; i < stackCount; i++) {
+ TaskStackView stackView = stackViews.get(i);
+ stackView.onUserInteraction();
}
}
/** Focuses the next task in the first stack view */
public void focusNextTask(boolean forward) {
// Get the first stack view
- int childCount = getChildCount();
- for (int i = 0; i < childCount; i++) {
- View child = getChildAt(i);
- if (child != mSearchBar) {
- TaskStackView stackView = (TaskStackView) child;
- stackView.focusNextTask(forward, true);
- break;
- }
+ List<TaskStackView> stackViews = getTaskStackViews();
+ if (!stackViews.isEmpty()) {
+ stackViews.get(0).focusNextTask(forward, true);
}
}
/** Dismisses the focused task. */
public void dismissFocusedTask() {
// Get the first stack view
- int childCount = getChildCount();
- for (int i = 0; i < childCount; i++) {
- View child = getChildAt(i);
- if (child != mSearchBar) {
- TaskStackView stackView = (TaskStackView) child;
- stackView.dismissFocusedTask();
- break;
- }
+ List<TaskStackView> stackViews = getTaskStackViews();
+ if (!stackViews.isEmpty()) {
+ stackViews.get(0).dismissFocusedTask();
}
}
}
};
}
- opts = ActivityOptions.makeThumbnailAspectScaleUpAnimation(sourceView,
- b, offsetX, offsetY, transform.rect.width(), transform.rect.height(),
- sourceView.getHandler(), animStartedListener);
+ if (mConfig.multiStackEnabled) {
+ opts = ActivityOptions.makeCustomAnimation(sourceView.getContext(),
+ R.anim.recents_from_unknown_enter,
+ R.anim.recents_from_unknown_exit,
+ sourceView.getHandler(), animStartedListener);
+ } else {
+ opts = ActivityOptions.makeThumbnailAspectScaleUpAnimation(sourceView,
+ b, offsetX, offsetY, transform.rect.width(), transform.rect.height(),
+ sourceView.getHandler(), animStartedListener);
+ }
}
final ActivityOptions launchOpts = opts;
}
@Override
- public void onAllTaskViewsDismissed() {
+ public void onAllTaskViewsDismissed(ArrayList<Task> removedTasks) {
+ if (removedTasks != null) {
+ int taskCount = removedTasks.size();
+ for (int i = 0; i < taskCount; i++) {
+ onTaskViewDismissed(removedTasks.get(i));
+ }
+ }
+
mCb.onAllTaskViewsDismissed();
}
/** Final callback after Recents is finally hidden. */
public void onRecentsHidden() {
// Notify each task stack view
- int childCount = getChildCount();
- for (int i = 0; i < childCount; i++) {
- View child = getChildAt(i);
- if (child != mSearchBar) {
- TaskStackView stackView = (TaskStackView) child;
- stackView.onRecentsHidden();
- }
+ List<TaskStackView> stackViews = getTaskStackViews();
+ int stackCount = stackViews.size();
+ for (int i = 0; i < stackCount; i++) {
+ TaskStackView stackView = stackViews.get(i);
+ stackView.onRecentsHidden();
}
}
}
}
+ @Override
+ public void onMultiStackMoveTask(Task t) {
+ if (mCb != null) {
+ mCb.onMultiStackMoveTask(t);
+ }
+ }
+
/**** RecentsPackageMonitor.PackageCallbacks Implementation ****/
@Override
public void onPackagesChanged(RecentsPackageMonitor monitor, String packageName, int userId) {
// 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 != mSearchBar) {
- TaskStackView stackView = (TaskStackView) child;
- stackView.onPackagesChanged(monitor, packageName, userId);
- }
+ List<TaskStackView> stackViews = getTaskStackViews();
+ int stackCount = stackViews.size();
+ for (int i = 0; i < stackCount; i++) {
+ TaskStackView stackView = stackViews.get(i);
+ stackView.onPackagesChanged(monitor, packageName, userId);
}
}
}
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