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Add click and long click actions to key node info 

This CL adds ACTION_CLICK or ACTION_LONG_CLICK actions to a key node
info. But report a node info without these actions for the same key
while hovering to avoid announcement "double tap to select and double
tap and hold to long press".

Bug: 15727335
Change-Id: I1e9333c94c819d049bda81ad410299f5a509d29c
main
Tadashi G. Takaoka 2014-06-20 14:53:40 -07:00
parent d801b6ee66
commit d4b6af14d8
2 changed files with 41 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
java/src/com/android/inputmethod/accessibility/KeyboardAccessibilityDelegate.java
View File

@ -305,7 +305,7 @@ public class KeyboardAccessibilityDelegate<KV extends KeyboardView>
key.onPressed();
mKeyboardView.invalidateKey(key);
final KeyboardAccessibilityNodeProvider provider = getAccessibilityNodeProvider();
provider.sendAccessibilityEventForKey(key, AccessibilityEventCompat.TYPE_VIEW_HOVER_ENTER);
provider.onHoverEnterTo(key);
provider.performActionForKey(key, AccessibilityNodeInfoCompat.ACTION_ACCESSIBILITY_FOCUS);
}
@ -328,6 +328,6 @@ public class KeyboardAccessibilityDelegate<KV extends KeyboardView>
key.onReleased();
mKeyboardView.invalidateKey(key);
final KeyboardAccessibilityNodeProvider provider = getAccessibilityNodeProvider();
provider.sendAccessibilityEventForKey(key, AccessibilityEventCompat.TYPE_VIEW_HOVER_EXIT);
provider.onHoverExitFrom(key);
}
}

40
java/src/com/android/inputmethod/accessibility/KeyboardAccessibilityNodeProvider.java
View File

@ -65,6 +65,9 @@ final class KeyboardAccessibilityNodeProvider extends AccessibilityNodeProviderC
/** The virtual view identifier for the focused node. */
private int mAccessibilityFocusedView = UNDEFINED;
/** The virtual view identifier for the hovering node. */
private int mHoveringNodeId = UNDEFINED;
/** The current keyboard view. */
private final KeyboardView mKeyboardView;
@ -140,6 +143,28 @@ final class KeyboardAccessibilityNodeProvider extends AccessibilityNodeProviderC
return event;
}
public void onHoverEnterTo(final Key key) {
final int id = getVirtualViewIdOf(key);
if (id == View.NO_ID) {
return;
}
// Start hovering on the key. Because our accessibility model is lift-to-type, we should
// report the node info without click and long click actions to avoid unnecessary
// announcements.
mHoveringNodeId = id;
// Invalidate the node info of the key.
sendAccessibilityEventForKey(key, AccessibilityEventCompat.TYPE_WINDOW_CONTENT_CHANGED);
sendAccessibilityEventForKey(key, AccessibilityEventCompat.TYPE_VIEW_HOVER_ENTER);
}
public void onHoverExitFrom(final Key key) {
mHoveringNodeId = UNDEFINED;
// Invalidate the node info of the key to be able to revert the change we have done
// in {@link #onHoverEnterTo(Key)}.
sendAccessibilityEventForKey(key, AccessibilityEventCompat.TYPE_WINDOW_CONTENT_CHANGED);
sendAccessibilityEventForKey(key, AccessibilityEventCompat.TYPE_VIEW_HOVER_EXIT);
}
/**
* Returns an {@link AccessibilityNodeInfoCompat} representing a virtual
* view, i.e. a descendant of the host View, with the given <code>virtualViewId</code> or
@ -214,7 +239,14 @@ final class KeyboardAccessibilityNodeProvider extends AccessibilityNodeProviderC
info.setSource(mKeyboardView, virtualViewId);
info.setEnabled(key.isEnabled());
info.setVisibleToUser(true);
// TODO: Add ACTION_CLICK and ACTION_LONG_CLICK.
// Don't add ACTION_CLICK and ACTION_LONG_CLOCK actions while hovering on the key.
// See {@link #onHoverEnterTo(Key)} and {@link #onHoverExitFrom(Key)}.
if (virtualViewId != mHoveringNodeId) {
info.addAction(AccessibilityNodeInfoCompat.ACTION_CLICK);
if (key.isLongPressEnabled()) {
info.addAction(AccessibilityNodeInfoCompat.ACTION_LONG_CLICK);
}
}
if (mAccessibilityFocusedView == virtualViewId) {
info.addAction(AccessibilityNodeInfoCompat.ACTION_CLEAR_ACCESSIBILITY_FOCUS);
@ -253,6 +285,12 @@ final class KeyboardAccessibilityNodeProvider extends AccessibilityNodeProviderC
sendAccessibilityEventForKey(
key, AccessibilityEventCompat.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED);
return true;
case AccessibilityNodeInfoCompat.ACTION_CLICK:
sendAccessibilityEventForKey(key, AccessibilityEvent.TYPE_VIEW_CLICKED);
return true;
case AccessibilityNodeInfoCompat.ACTION_LONG_CLICK:
sendAccessibilityEventForKey(key, AccessibilityEvent.TYPE_VIEW_LONG_CLICKED);
return true;
default:
return false;
}