Add accessibility messages to privacy chip on tv. (ba527220) · Commits · e / os / android_frameworks_base

packages/SystemUI/res/values/strings_tv.xml

+8 −0

Original line number	Diff line number	Diff line
		@@ -28,4 +28,12 @@

		<string name="tv_notification_panel_title">Notifications</string>
		<string name="tv_notification_panel_no_notifications">No Notifications</string>

		<string name="mic_recording_announcement">Microphone is recording</string>
		<string name="camera_recording_announcement">Camera is recording</string>
		<string name="mic_and_camera_recording_announcement">Camera and Microphone are recording</string>
		<string name="mic_stopped_recording_announcement">Microphone stopped recording</string>
		<string name="camera_stopped_recording_announcement">Camera stopped recording</string>
		<string name="mic_camera_stopped_recording_announcement">Camera and Microphone stopped recording</string>

		</resources>

packages/SystemUI/src/com/android/systemui/privacy/television/TvOngoingPrivacyChip.java

+87 −0

Original line number	Diff line number	Diff line
		@@ -53,6 +53,7 @@ import java.lang.annotation.Retention;
		import java.lang.annotation.RetentionPolicy;
		import java.util.ArrayList;
		import java.util.Collections;
		import java.util.LinkedList;
		import java.util.List;

		import javax.inject.Inject;
		@@ -88,6 +89,9 @@ public class TvOngoingPrivacyChip extends SystemUI implements PrivacyItemControl
		private static final int STATE_COLLAPSED = 3;
		private static final int STATE_DISAPPEARING = 4;

		// Avoid multiple messages after rapid changes such as starting/stopping both camera and mic.
		private static final int ACCESSIBILITY_ANNOUNCEMENT_DELAY_MS = 500;

		private static final int EXPANDED_DURATION_MS = 4000;
		public final int mAnimationDurationMs;

		@@ -113,6 +117,9 @@ public class TvOngoingPrivacyChip extends SystemUI implements PrivacyItemControl
		private final Handler mUiThreadHandler = new Handler(Looper.getMainLooper());
		private final Runnable mCollapseRunnable = this::collapseChip;

		private final Runnable mAccessibilityRunnable = this::makeAccessibilityAnnouncement;
		private final List<PrivacyItem> mItemsBeforeLastAnnouncement = new LinkedList<>();

		@State
		private int mState = STATE_NOT_SHOWN;

		@@ -169,6 +176,8 @@ public class TvOngoingPrivacyChip extends SystemUI implements PrivacyItemControl
		}

		mPrivacyItems = updatedPrivacyItems;

		postAccessibilityAnnouncement();
		updateChip();
		}

		@@ -301,6 +310,7 @@ public class TvOngoingPrivacyChip extends SystemUI implements PrivacyItemControl
		mIndicatorView.getViewTreeObserver().removeOnGlobalLayoutListener(
		this);

		postAccessibilityAnnouncement();
		animateIconAppearance();
		mChipDrawable.startInitialFadeIn();
		}
		@@ -459,6 +469,83 @@ public class TvOngoingPrivacyChip extends SystemUI implements PrivacyItemControl
		mViewAndWindowAdded = false;
		}

		/**
		* Schedules the accessibility announcement to be made after {@code
		* ACCESSIBILITY_ANNOUNCEMENT_DELAY_MS} (if possible). This is so that only one announcement is
		* made instead of two separate ones if both the camera and the mic are started/stopped.
		*/
		private void postAccessibilityAnnouncement() {
		mUiThreadHandler.removeCallbacks(mAccessibilityRunnable);

		if (mPrivacyItems.size() == 0) {
		// Announce immediately since announcement cannot be made once the chip is gone.
		makeAccessibilityAnnouncement();
		} else {
		mUiThreadHandler.postDelayed(mAccessibilityRunnable,
		ACCESSIBILITY_ANNOUNCEMENT_DELAY_MS);
		}
		}

		private void makeAccessibilityAnnouncement() {
		if (mIndicatorView == null) {
		return;
		}

		boolean cameraWasRecording = listContainsPrivacyType(mItemsBeforeLastAnnouncement,
		PrivacyType.TYPE_CAMERA);
		boolean cameraIsRecording = listContainsPrivacyType(mPrivacyItems,
		PrivacyType.TYPE_CAMERA);
		boolean micWasRecording = listContainsPrivacyType(mItemsBeforeLastAnnouncement,
		PrivacyType.TYPE_MICROPHONE);
		boolean micIsRecording = listContainsPrivacyType(mPrivacyItems,
		PrivacyType.TYPE_MICROPHONE);

		int announcement = 0;
		if (!cameraWasRecording && cameraIsRecording && !micWasRecording && micIsRecording) {
		// Both started
		announcement = R.string.mic_and_camera_recording_announcement;
		} else if (cameraWasRecording && !cameraIsRecording && micWasRecording && !micIsRecording) {
		// Both stopped
		announcement = R.string.mic_camera_stopped_recording_announcement;
		} else {
		// Did the camera start or stop?
		if (cameraWasRecording && !cameraIsRecording) {
		announcement = R.string.camera_stopped_recording_announcement;
		} else if (!cameraWasRecording && cameraIsRecording) {
		announcement = R.string.camera_recording_announcement;
		}

		// Announce camera changes now since we might need a second announcement about the mic.
		if (announcement != 0) {
		mIndicatorView.announceForAccessibility(mContext.getString(announcement));
		announcement = 0;
		}

		// Did the mic start or stop?
		if (micWasRecording && !micIsRecording) {
		announcement = R.string.mic_stopped_recording_announcement;
		} else if (!micWasRecording && micIsRecording) {
		announcement = R.string.mic_recording_announcement;
		}
		}

		if (announcement != 0) {
		mIndicatorView.announceForAccessibility(mContext.getString(announcement));
		}

		mItemsBeforeLastAnnouncement.clear();
		mItemsBeforeLastAnnouncement.addAll(mPrivacyItems);
		}

		private boolean listContainsPrivacyType(List<PrivacyItem> list, PrivacyType privacyType) {
		for (PrivacyItem item : list) {
		if (item.getPrivacyType() == privacyType) {
		return true;
		}
		}
		return false;
		}

		/**
		* Used in debug logs.
		*/