Merge "Prevent back button from being handled by app after waking device" into nyc-mr1-dev (1b7c5631) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/policy/PhoneWindowManager.java

+33 −3

Original line number	Diff line number	Diff line
		@@ -216,6 +216,8 @@ public class PhoneWindowManager implements WindowManagerPolicy {
		static final int SHORT_PRESS_SLEEP_GO_TO_SLEEP = 0;
		static final int SHORT_PRESS_SLEEP_GO_TO_SLEEP_AND_GO_HOME = 1;

		static final int PENDING_KEY_NULL = -1;

		// Controls navigation bar opacity depending on which workspace stacks are currently
		// visible.
		// Nav bar is always opaque when either the freeform stack or docked stack is visible.
		@@ -410,6 +412,10 @@ public class PhoneWindowManager implements WindowManagerPolicy {
		volatile boolean mRecentsVisible;
		volatile boolean mTvPictureInPictureVisible;

		// Used to hold the last user key used to wake the device. This helps us prevent up events
		// from being passed to the foregrounded app without a corresponding down event
		volatile int mPendingWakeKey = PENDING_KEY_NULL;

		int mRecentAppsHeldModifiers;
		boolean mLanguageSwitchKeyPressed;

		@@ -5560,12 +5566,24 @@ public class PhoneWindowManager implements WindowManagerPolicy {
		// key to the application.
		result = ACTION_PASS_TO_USER;
		isWakeKey = false;
		} else if (!interactive && shouldDispatchInputWhenNonInteractive()) {

		if (interactive) {
		// If the screen is awake, but the button pressed was the one that woke the device
		// then don't pass it to the application
		if (keyCode == mPendingWakeKey && !down) {
		result = 0;
		}
		// Reset the pending key
		mPendingWakeKey = PENDING_KEY_NULL;
		}
		} else if (!interactive && shouldDispatchInputWhenNonInteractive(event)) {
		// If we're currently dozing with the screen on and the keyguard showing, pass the key
		// to the application but preserve its wake key status to make sure we still move
		// from dozing to fully interactive if we would normally go from off to fully
		// interactive.
		result = ACTION_PASS_TO_USER;
		// Since we're dispatching the input, reset the pending key
		mPendingWakeKey = PENDING_KEY_NULL;
		} else {
		// When the screen is off and the key is not injected, determine whether
		// to wake the device but don't pass the key to the application.
		@@ -5573,6 +5591,10 @@ public class PhoneWindowManager implements WindowManagerPolicy {
		if (isWakeKey && (!down \|\| !isWakeKeyWhenScreenOff(keyCode))) {
		isWakeKey = false;
		}
		// Cache the wake key on down event so we can also avoid sending the up event to the app
		if (isWakeKey && down) {
		mPendingWakeKey = keyCode;
		}
		}

		// If the key would be handled globally, just return the result, don't worry about special
		@@ -5949,7 +5971,7 @@ public class PhoneWindowManager implements WindowManagerPolicy {
		}
		}

		if (shouldDispatchInputWhenNonInteractive()) {
		if (shouldDispatchInputWhenNonInteractive(null)) {
		return ACTION_PASS_TO_USER;
		}

		@@ -5964,7 +5986,7 @@ public class PhoneWindowManager implements WindowManagerPolicy {
		return 0;
		}

		private boolean shouldDispatchInputWhenNonInteractive() {
		private boolean shouldDispatchInputWhenNonInteractive(KeyEvent event) {
		final boolean displayOff = (mDisplay == null \|\| mDisplay.getState() == Display.STATE_OFF);

		if (displayOff && !mHasFeatureWatch) {
		@@ -5976,6 +5998,14 @@ public class PhoneWindowManager implements WindowManagerPolicy {
		return true;
		}

		// Watches handle BACK specially
		if (mHasFeatureWatch
		&& event != null
		&& (event.getKeyCode() == KeyEvent.KEYCODE_BACK
		\|\| event.getKeyCode() == KeyEvent.KEYCODE_STEM_PRIMARY)) {
		return false;
		}

		// Send events to a dozing dream even if the screen is off since the dream
		// is in control of the state of the screen.
		IDreamManager dreamManager = getDreamManager();