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Tell Android when the accessibility tree changes

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Hard to say if this actually works. We'll find out once we've filled
this out enough that you can walk the tree in Android's Talkback UI.
This commit is contained in:
Hixie
2016-02-04 14:49:02 -08:00
parent cb789edc94
commit 17806fdb76
1 changed files with 13 additions and 1 deletions
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sky/shell/platform/android/org/domokit/sky/shell/FlutterSemanticsToAndroidAccessibilityBridge.java
+13 -1
View File
@@ -8,6 +8,7 @@ import android.graphics.Rect;
import android.opengl.Matrix;
import android.os.Bundle;
import android.view.View;
import android.view.accessibility.AccessibilityEvent;
import android.view.accessibility.AccessibilityManager;
import android.view.accessibility.AccessibilityNodeInfo;
import android.view.accessibility.AccessibilityNodeProvider;
@@ -163,6 +164,18 @@ public class FlutterSemanticsToAndroidAccessibilityBridge extends AccessibilityN
public void updateSemanticsTree(SemanticsNode[] nodes) {
for (SemanticsNode node : nodes) {
updateSemanticsNode(node);
sendAccessibilityEvent(node.id, AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED);
}
}
private void sendAccessibilityEvent(int virtualViewId, int eventType) {
if (virtualViewId == 0) {
mOwner.sendAccessibilityEvent(eventType);
} else {
AccessibilityEvent event = AccessibilityEvent.obtain(eventType);
event.setPackageName(mOwner.getContext().getPackageName());
event.setSource(mOwner, virtualViewId);
mOwner.getParent().requestSendAccessibilityEvent(mOwner, event);
}
}
@@ -250,7 +263,6 @@ public class FlutterSemanticsToAndroidAccessibilityBridge extends AccessibilityN
// since they also get marked dirty
invalidateGlobalGeometry();
}
// TODO(ianh): Notify Android that our tree is dirty
}
// fields that we pass straight to the Android accessibility API