Stash/unstash the task bar based on states (527b39cd) · Commits · e / os / android_packages_apps_Trebuchet

quickstep/src/com/android/launcher3/taskbar/LauncherTaskbarUIController.java

+11 −9

Original line number	Diff line number	Diff line
		@@ -16,6 +16,7 @@
		package com.android.launcher3.taskbar;

		import static com.android.launcher3.LauncherState.HOTSEAT_ICONS;
		import static com.android.launcher3.taskbar.TaskbarStashController.FLAG_IN_APP;
		import static com.android.launcher3.taskbar.TaskbarViewController.ALPHA_INDEX_HOME;

		import android.animation.Animator;
		@@ -162,10 +163,9 @@ public class LauncherTaskbarUIController extends TaskbarUIController {
		anim.start();
		mIsAnimatingToLauncherViaResume = isResumed;

		if (!isResumed) {
		TaskbarStashController stashController = mControllers.taskbarStashController;
		stashController.animateToIsStashed(stashController.isStashedInApp(), duration);
		}
		stashController.updateStateForFlag(FLAG_IN_APP, !isResumed);
		stashController.applyState(duration);
		SystemUiProxy.INSTANCE.get(mContext).notifyTaskbarStatus(!isResumed,
		mControllers.taskbarStashController.isStashedInApp());
		}
		@@ -193,8 +193,11 @@ public class LauncherTaskbarUIController extends TaskbarUIController {
		public void onAnimationStart(Animator animation) {
		mTargetStateOverride = toState;
		mIsAnimatingToLauncherViaGesture = true;
		// TODO: base this on launcher state
		stashController.animateToIsStashed(false, duration);
		// TODO: FLAG_IN_APP might be sufficient for now, but in the future we do want to
		// add another flag for LauncherState as well. We will need to decide whether to
		// show hotseat or the task bar.
		stashController.updateStateForFlag(FLAG_IN_APP, false);
		stashController.applyState(duration);
		}
		});

		@@ -327,9 +330,8 @@ public class LauncherTaskbarUIController extends TaskbarUIController {
		.start();

		TaskbarStashController controller = mControllers.taskbarStashController;
		if (finishedToApp) {
		controller.animateToIsStashed(controller.isStashedInApp());
		}
		controller.updateStateForFlag(FLAG_IN_APP, finishedToApp);
		controller.applyState();
		}
		}
		}

quickstep/src/com/android/launcher3/taskbar/TaskbarStashController.java

+60 −23

Original line number	Diff line number	Diff line
		@@ -31,12 +31,17 @@ import com.android.launcher3.util.MultiValueAlpha.AlphaProperty;
		import com.android.quickstep.AnimatedFloat;
		import com.android.quickstep.SystemUiProxy;

		import java.util.function.IntPredicate;

		/**
		* Coordinates between controllers such as TaskbarViewController and StashedHandleViewController to
		* create a cohesive animation between stashed/unstashed states.
		*/
		public class TaskbarStashController {

		public static final int FLAG_IN_APP = 1 << 0;
		public static final int FLAG_STASHED_IN_APP = 1 << 1;

		/**
		* How long to stash/unstash when manually invoked via long press.
		*/
		@@ -78,6 +83,9 @@ public class TaskbarStashController {
		private final int mStashedHeight;
		private final int mUnstashedHeight;

		private final StatePropertyHolder mStatePropertyHolder = new StatePropertyHolder(
		flags -> (((flags & FLAG_IN_APP) != 0) && (flags & FLAG_STASHED_IN_APP) != 0));

		// Initialized in init.
		private TaskbarControllers mControllers;
		// Taskbar background properties.
		@@ -94,6 +102,7 @@ public class TaskbarStashController {
		private boolean mIsStashedInApp;
		/** Whether we are currently visually stashed (might change based on launcher state). */
		private boolean mIsStashed = false;
		private int mState;

		private @Nullable AnimatorSet mAnimator;

		@@ -124,6 +133,7 @@ public class TaskbarStashController {

		mIsStashedInApp = supportsStashing()
		&& mPrefs.getBoolean(SHARED_PREFS_STASHED_KEY, DEFAULT_STASHED_PREF);
		updateStateForFlag(FLAG_STASHED_IN_APP, mIsStashedInApp);

		SystemUiProxy.INSTANCE.get(mActivity)
		.notifyTaskbarStatus(/* visible / true, / stashed */ mIsStashedInApp);
		@@ -190,35 +200,19 @@ public class TaskbarStashController {
		return false;
		}
		if (mIsStashedInApp != isStashedInApp) {
		boolean wasStashed = mIsStashedInApp;
		mIsStashedInApp = isStashedInApp;
		mPrefs.edit().putBoolean(SHARED_PREFS_STASHED_KEY, mIsStashedInApp).apply();
		boolean isStashed = mIsStashedInApp;
		if (wasStashed != isStashed) {
		updateStateForFlag(FLAG_STASHED_IN_APP, mIsStashedInApp);
		applyState();

		SystemUiProxy.INSTANCE.get(mActivity)
		.notifyTaskbarStatus(/* visible / true, / stashed */ isStashed);
		.notifyTaskbarStatus(/* visible / true, / stashed */ mIsStashedInApp);
		mControllers.uiController.onStashedInAppChanged();
		createAnimToIsStashed(isStashed, TASKBAR_STASH_DURATION).start();
		return true;
		}
		}
		return false;
		}

		/**
		* Starts an animation to the new stashed state with a default duration.
		*/
		public void animateToIsStashed(boolean isStashed) {
		animateToIsStashed(isStashed, TASKBAR_STASH_DURATION);
		}

		/**
		* Starts an animation to the new stashed state with the specified duration.
		*/
		public void animateToIsStashed(boolean isStashed, long duration) {
		createAnimToIsStashed(isStashed, duration).start();
		}

		private Animator createAnimToIsStashed(boolean isStashed, long duration) {
		AnimatorSet fullLengthAnimatorSet = new AnimatorSet();
		// Not exactly half and may overlap. See [first\|second]HalfDurationScale below.
		@@ -331,4 +325,47 @@ public class TaskbarStashController {
		private void onIsStashed(boolean isStashed) {
		mControllers.stashedHandleViewController.onIsStashed(isStashed);
		}

		public void applyState() {
		applyState(TASKBAR_STASH_DURATION);
		}

		public void applyState(long duration) {
		mStatePropertyHolder.setState(mState, duration);
		}

		/**
		* Updates the proper flag to indicate whether the task bar should be stashed.
		*
		* Note that this only updates the flag. {@link #applyState()} needs to be called separately.
		*
		* @param flag The flag to update.
		* @param enabled Whether to enable the flag: True will cause the task bar to be stashed /
		* unstashed.
		*/
		public void updateStateForFlag(int flag, boolean enabled) {
		if (enabled) {
		mState \|= flag;
		} else {
		mState &= ~flag;
		}
		}

		private class StatePropertyHolder {
		private final IntPredicate mStashCondition;

		private boolean mIsStashed;

		StatePropertyHolder(IntPredicate stashCondition) {
		mStashCondition = stashCondition;
		}

		public void setState(int flags, long duration) {
		boolean isStashed = mStashCondition.test(flags);
		if (mIsStashed != isStashed) {
		mIsStashed = isStashed;
		createAnimToIsStashed(mIsStashed, duration).start();
		}
		}
		}
		}