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Support performAccessibilityAction for CLICK and LONG_CLICK

Browse Source 
Bug: 15727335
Change-Id: I83274c1a9d3cf2e8237d1674fe915b7b2d222a53
This commit is contained in:
Tadashi G. Takaoka 2014-06-24 15:14:24 -07:00
parent c9c3ea0b68
commit 1e31672295
4 changed files with 47 additions and 27 deletions
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4
java/src/com/android/inputmethod/accessibility/AccessibilityLongPressTimer.java
View File

@ -26,7 +26,7 @@ import com.android.inputmethod.latin.R;
// Handling long press timer to show a more keys keyboard.
final class AccessibilityLongPressTimer extends Handler {
public interface LongPressTimerCallback {
public void onLongPressed(Key key);
public void performLongClickOn(Key key);
}
private static final int MSG_LONG_PRESS = 1;
@ -47,7 +47,7 @@ final class AccessibilityLongPressTimer extends Handler {
switch (msg.what) {
case MSG_LONG_PRESS:
cancelLongPress();
mCallback.onLongPressed((Key)msg.obj);
mCallback.performLongClickOn((Key)msg.obj);
return;
default:
super.handleMessage(msg);

47
java/src/com/android/inputmethod/accessibility/KeyboardAccessibilityDelegate.java
View File

@ -17,6 +17,7 @@
package com.android.inputmethod.accessibility;
import android.content.Context;
import android.os.SystemClock;
import android.support.v4.view.AccessibilityDelegateCompat;
import android.support.v4.view.ViewCompat;
import android.support.v4.view.accessibility.AccessibilityNodeInfoCompat;
@ -49,7 +50,7 @@ public class KeyboardAccessibilityDelegate<KV extends KeyboardView>
protected final KV mKeyboardView;
protected final KeyDetector mKeyDetector;
private Keyboard mKeyboard;
private KeyboardAccessibilityNodeProvider mAccessibilityNodeProvider;
private KeyboardAccessibilityNodeProvider<KV> mAccessibilityNodeProvider;
private Key mLastHoverKey;
public static final int HOVER_EVENT_POINTER_ID = 0;
@ -132,19 +133,20 @@ public class KeyboardAccessibilityDelegate<KV extends KeyboardView>
* @return The accessibility node provider for the current keyboard.
*/
@Override
public KeyboardAccessibilityNodeProvider getAccessibilityNodeProvider(final View host) {
public KeyboardAccessibilityNodeProvider<KV> getAccessibilityNodeProvider(final View host) {
return getAccessibilityNodeProvider();
}
/**
* @return A lazily-instantiated node provider for this view delegate.
*/
protected KeyboardAccessibilityNodeProvider getAccessibilityNodeProvider() {
protected KeyboardAccessibilityNodeProvider<KV> getAccessibilityNodeProvider() {
// Instantiate the provide only when requested. Since the system
// will call this method multiple times it is a good practice to
// cache the provider instance.
if (mAccessibilityNodeProvider == null) {
mAccessibilityNodeProvider = new KeyboardAccessibilityNodeProvider(mKeyboardView);
mAccessibilityNodeProvider =
new KeyboardAccessibilityNodeProvider<>(mKeyboardView, this);
}
return mAccessibilityNodeProvider;
}
@ -241,35 +243,37 @@ public class KeyboardAccessibilityDelegate<KV extends KeyboardView>
// Make sure we're not getting an EXIT event because the user slid
// off the keyboard area, then force a key press.
if (key != null) {
onRegisterHoverKey(key, event);
performClickOn(key);
onHoverExitFrom(key);
}
setLastHoverKey(null);
}
/**
* Register a key that is selected by a hover event
* Perform click on a key.
*
* @param key A key to be registered.
* @param event A hover exit event that triggers key registering.
*/
protected void onRegisterHoverKey(final Key key, final MotionEvent event) {
public void performClickOn(final Key key) {
if (DEBUG_HOVER) {
Log.d(TAG, "onRegisterHoverKey: key=" + key);
Log.d(TAG, "performClickOn: key=" + key);
}
simulateTouchEvent(MotionEvent.ACTION_DOWN, event);
simulateTouchEvent(MotionEvent.ACTION_UP, event);
simulateTouchEvent(MotionEvent.ACTION_DOWN, key);
simulateTouchEvent(MotionEvent.ACTION_UP, key);
}
/**
* Simulating a touch event by injecting a synthesized touch event into {@link KeyboardView}.
*
* @param touchAction The action of the synthesizing touch event.
* @param hoverEvent The base hover event from that the touch event is synthesized.
* @param key The key that a synthesized touch event is on.
*/
private void simulateTouchEvent(final int touchAction, final MotionEvent hoverEvent) {
final MotionEvent touchEvent = MotionEvent.obtain(hoverEvent);
touchEvent.setAction(touchAction);
private void simulateTouchEvent(final int touchAction, final Key key) {
final int x = key.getHitBox().centerX();
final int y = key.getHitBox().centerY();
final long eventTime = SystemClock.uptimeMillis();
final MotionEvent touchEvent = MotionEvent.obtain(
eventTime, eventTime, touchAction, x, y, 0 /* metaState */);
mKeyboardView.onTouchEvent(touchEvent);
touchEvent.recycle();
}
@ -285,7 +289,7 @@ public class KeyboardAccessibilityDelegate<KV extends KeyboardView>
}
key.onPressed();
mKeyboardView.invalidateKey(key);
final KeyboardAccessibilityNodeProvider provider = getAccessibilityNodeProvider();
final KeyboardAccessibilityNodeProvider<KV> provider = getAccessibilityNodeProvider();
provider.onHoverEnterTo(key);
provider.performActionForKey(key, AccessibilityNodeInfoCompat.ACTION_ACCESSIBILITY_FOCUS);
}
@ -308,7 +312,16 @@ public class KeyboardAccessibilityDelegate<KV extends KeyboardView>
}
key.onReleased();
mKeyboardView.invalidateKey(key);
final KeyboardAccessibilityNodeProvider provider = getAccessibilityNodeProvider();
final KeyboardAccessibilityNodeProvider<KV> provider = getAccessibilityNodeProvider();
provider.onHoverExitFrom(key);
}
/**
* Perform long click on a key.
*
* @param key A key to be long pressed on.
*/
public void performLongClickOn(final Key key) {
// A extended class should override this method to implement long press.
}
}

13
java/src/com/android/inputmethod/accessibility/KeyboardAccessibilityNodeProvider.java
View File

@ -47,7 +47,8 @@ import java.util.List;
* virtual views, thus conveying their logical structure.
* </p>
*/
final class KeyboardAccessibilityNodeProvider extends AccessibilityNodeProviderCompat {
final class KeyboardAccessibilityNodeProvider<KV extends KeyboardView>
extends AccessibilityNodeProviderCompat {
private static final String TAG = KeyboardAccessibilityNodeProvider.class.getSimpleName();
// From {@link android.view.accessibility.AccessibilityNodeInfo#UNDEFINED_ITEM_ID}.
@ -69,16 +70,20 @@ final class KeyboardAccessibilityNodeProvider extends AccessibilityNodeProviderC
private int mHoveringNodeId = UNDEFINED;
/** The keyboard view to provide an accessibility node info. */
private final KeyboardView mKeyboardView;
private final KV mKeyboardView;
/** The accessibility delegate. */
private final KeyboardAccessibilityDelegate<KV> mDelegate;
/** The current keyboard. */
private Keyboard mKeyboard;
public KeyboardAccessibilityNodeProvider(final KeyboardView keyboardView) {
public KeyboardAccessibilityNodeProvider(final KV keyboardView,
final KeyboardAccessibilityDelegate<KV> delegate) {
super();
mKeyCodeDescriptionMapper = KeyCodeDescriptionMapper.getInstance();
mAccessibilityUtils = AccessibilityUtils.getInstance();
mKeyboardView = keyboardView;
mDelegate = delegate;
// Since this class is constructed lazily, we might not get a subsequent
// call to setKeyboard() and therefore need to call it now.
@ -287,9 +292,11 @@ final class KeyboardAccessibilityNodeProvider extends AccessibilityNodeProviderC
return true;
case AccessibilityNodeInfoCompat.ACTION_CLICK:
sendAccessibilityEventForKey(key, AccessibilityEvent.TYPE_VIEW_CLICKED);
mDelegate.performClickOn(key);
return true;
case AccessibilityNodeInfoCompat.ACTION_LONG_CLICK:
sendAccessibilityEventForKey(key, AccessibilityEvent.TYPE_VIEW_LONG_CLICKED);
mDelegate.performLongClickOn(key);
return true;
default:
return false;

10
java/src/com/android/inputmethod/accessibility/MainKeyboardAccessibilityDelegate.java
View File

@ -207,11 +207,11 @@ public final class MainKeyboardAccessibilityDelegate
}
@Override
protected void onRegisterHoverKey(final Key key, final MotionEvent event) {
public void performClickOn(final Key key) {
final int x = key.getHitBox().centerX();
final int y = key.getHitBox().centerY();
if (DEBUG_HOVER) {
Log.d(TAG, "onRegisterHoverKey: key=" + key
Log.d(TAG, "performClickOn: key=" + key
+ " inIgnoreBounds=" + mBoundsToIgnoreHoverEvent.contains(x, y));
}
if (mBoundsToIgnoreHoverEvent.contains(x, y)) {
@ -220,7 +220,7 @@ public final class MainKeyboardAccessibilityDelegate
mBoundsToIgnoreHoverEvent.setEmpty();
return;
}
super.onRegisterHoverKey(key, event);
super.performClickOn(key);
}
@Override
@ -257,9 +257,9 @@ public final class MainKeyboardAccessibilityDelegate
}
@Override
public void onLongPressed(final Key key) {
public void performLongClickOn(final Key key) {
if (DEBUG_HOVER) {
Log.d(TAG, "onLongPressed: key=" + key);
Log.d(TAG, "performLongClickOn: key=" + key);
}
final PointerTracker tracker = PointerTracker.getPointerTracker(HOVER_EVENT_POINTER_ID);
final long eventTime = SystemClock.uptimeMillis();