diff options
Diffstat (limited to 'java/src/com/android/inputmethod/accessibility')
| -rw-r--r-- | java/src/com/android/inputmethod/accessibility/KeyboardAccessibilityDelegate.java | 118 | ||||
| -rw-r--r-- | java/src/com/android/inputmethod/accessibility/MainKeyboardAccessibilityDelegate.java | 144 |
2 files changed, 116 insertions, 146 deletions
diff --git a/java/src/com/android/inputmethod/accessibility/KeyboardAccessibilityDelegate.java b/java/src/com/android/inputmethod/accessibility/KeyboardAccessibilityDelegate.java index 84e0a42ff..eed40f4a9 100644 --- a/java/src/com/android/inputmethod/accessibility/KeyboardAccessibilityDelegate.java +++ b/java/src/com/android/inputmethod/accessibility/KeyboardAccessibilityDelegate.java @@ -16,23 +16,28 @@ package com.android.inputmethod.accessibility; +import android.os.SystemClock; import android.support.v4.view.AccessibilityDelegateCompat; import android.support.v4.view.ViewCompat; +import android.support.v4.view.accessibility.AccessibilityEventCompat; +import android.support.v4.view.accessibility.AccessibilityNodeInfoCompat; import android.view.MotionEvent; import android.view.View; import android.view.ViewParent; import android.view.accessibility.AccessibilityEvent; +import com.android.inputmethod.keyboard.Key; import com.android.inputmethod.keyboard.KeyDetector; import com.android.inputmethod.keyboard.Keyboard; import com.android.inputmethod.keyboard.KeyboardView; -public abstract class KeyboardAccessibilityDelegate<KV extends KeyboardView> +public class KeyboardAccessibilityDelegate<KV extends KeyboardView> extends AccessibilityDelegateCompat { protected final KV mKeyboardView; protected final KeyDetector mKeyDetector; private Keyboard mKeyboard; private KeyboardAccessibilityNodeProvider mAccessibilityNodeProvider; + private Key mLastHoverKey; public KeyboardAccessibilityDelegate(final KV keyboardView, final KeyDetector keyDetector) { super(); @@ -114,5 +119,114 @@ public abstract class KeyboardAccessibilityDelegate<KV extends KeyboardView> * @param event The hover event. * @return {@code true} if the event is handled */ - public abstract boolean dispatchHoverEvent(final MotionEvent event); + public boolean dispatchHoverEvent(final MotionEvent event) { + final int x = (int) event.getX(); + final int y = (int) event.getY(); + final Key previousKey = mLastHoverKey; + final Key key = mKeyDetector.detectHitKey(x, y); + mLastHoverKey = key; + + switch (event.getAction()) { + case MotionEvent.ACTION_HOVER_EXIT: + // 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) { + final long downTime = simulateKeyPress(key); + simulateKeyRelease(key, downTime); + } + //$FALL-THROUGH$ + case MotionEvent.ACTION_HOVER_ENTER: + return onHoverKey(key, event); + case MotionEvent.ACTION_HOVER_MOVE: + if (key != previousKey) { + return onTransitionKey(key, previousKey, event); + } + return onHoverKey(key, event); + } + return false; + } + + /** + * Simulates a key press by injecting touch an event into the keyboard view. + * This avoids the complexity of trackers and listeners within the keyboard. + * + * @param key The key to press. + */ + private long simulateKeyPress(final Key key) { + final int x = key.getHitBox().centerX(); + final int y = key.getHitBox().centerY(); + final long downTime = SystemClock.uptimeMillis(); + final MotionEvent downEvent = MotionEvent.obtain( + downTime, downTime, MotionEvent.ACTION_DOWN, x, y, 0); + mKeyboardView.onTouchEvent(downEvent); + downEvent.recycle(); + return downTime; + } + + /** + * Simulates a key release by injecting touch an event into the keyboard view. + * This avoids the complexity of trackers and listeners within the keyboard. + * + * @param key The key to release. + */ + private void simulateKeyRelease(final Key key, final long downTime) { + final int x = key.getHitBox().centerX(); + final int y = key.getHitBox().centerY(); + final MotionEvent upEvent = MotionEvent.obtain( + downTime, SystemClock.uptimeMillis(), MotionEvent.ACTION_UP, x, y, 0); + mKeyboardView.onTouchEvent(upEvent); + upEvent.recycle(); + } + + /** + * Simulates a transition between two {@link Key}s by sending a HOVER_EXIT on the previous key, + * a HOVER_ENTER on the current key, and a HOVER_MOVE on the current key. + * + * @param currentKey The currently hovered key. + * @param previousKey The previously hovered key. + * @param event The event that triggered the transition. + * @return {@code true} if the event was handled. + */ + private boolean onTransitionKey(final Key currentKey, final Key previousKey, + final MotionEvent event) { + final int savedAction = event.getAction(); + event.setAction(MotionEvent.ACTION_HOVER_EXIT); + onHoverKey(previousKey, event); + event.setAction(MotionEvent.ACTION_HOVER_ENTER); + onHoverKey(currentKey, event); + event.setAction(MotionEvent.ACTION_HOVER_MOVE); + final boolean handled = onHoverKey(currentKey, event); + event.setAction(savedAction); + return handled; + } + + /** + * Handles a hover event on a key. If {@link Key} extended View, this would be analogous to + * calling View.onHoverEvent(MotionEvent). + * + * @param key The currently hovered key. + * @param event The hover event. + * @return {@code true} if the event was handled. + */ + private boolean onHoverKey(final Key key, final MotionEvent event) { + // Null keys can't receive events. + if (key == null) { + return false; + } + final KeyboardAccessibilityNodeProvider provider = getAccessibilityNodeProvider(); + + switch (event.getAction()) { + case MotionEvent.ACTION_HOVER_ENTER: + provider.sendAccessibilityEventForKey( + key, AccessibilityEventCompat.TYPE_VIEW_HOVER_ENTER); + provider.performActionForKey( + key, AccessibilityNodeInfoCompat.ACTION_ACCESSIBILITY_FOCUS, null); + break; + case MotionEvent.ACTION_HOVER_EXIT: + provider.sendAccessibilityEventForKey( + key, AccessibilityEventCompat.TYPE_VIEW_HOVER_EXIT); + break; + } + return true; + } } diff --git a/java/src/com/android/inputmethod/accessibility/MainKeyboardAccessibilityDelegate.java b/java/src/com/android/inputmethod/accessibility/MainKeyboardAccessibilityDelegate.java index e2c29740b..c114551c8 100644 --- a/java/src/com/android/inputmethod/accessibility/MainKeyboardAccessibilityDelegate.java +++ b/java/src/com/android/inputmethod/accessibility/MainKeyboardAccessibilityDelegate.java @@ -52,19 +52,9 @@ public final class MainKeyboardAccessibilityDelegate private int mLastKeyboardMode = KEYBOARD_IS_HIDDEN; private static final int KEYBOARD_IS_HIDDEN = -1; - private Key mLastHoverKey = null; - - /** - * Inset in pixels to look for keys when the user's finger exits the keyboard area. - */ - private final int mEdgeSlop; - public MainKeyboardAccessibilityDelegate(final MainKeyboardView mainKeyboardView, final KeyDetector keyDetector) { super(mainKeyboardView, keyDetector); - final Context context = mainKeyboardView.getContext(); - mEdgeSlop = context.getResources().getDimensionPixelSize( - R.dimen.config_accessibility_edge_slop); } /** @@ -191,138 +181,4 @@ public final class MainKeyboardAccessibilityDelegate sendWindowStateChanged(text); } - - /** - * {@inheritDoc} - */ - @Override - public boolean dispatchHoverEvent(final MotionEvent event) { - final int x = (int) event.getX(); - final int y = (int) event.getY(); - final Key previousKey = mLastHoverKey; - final Key key; - - if (pointInView(x, y)) { - key = mKeyDetector.detectHitKey(x, y); - } else { - key = null; - } - mLastHoverKey = key; - - switch (event.getAction()) { - case MotionEvent.ACTION_HOVER_EXIT: - // 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) { - final long downTime = simulateKeyPress(key); - simulateKeyRelease(key, downTime); - } - //$FALL-THROUGH$ - case MotionEvent.ACTION_HOVER_ENTER: - return onHoverKey(key, event); - case MotionEvent.ACTION_HOVER_MOVE: - if (key != previousKey) { - return onTransitionKey(key, previousKey, event); - } - return onHoverKey(key, event); - } - return false; - } - - /** - * Utility method to determine whether the given point, in local coordinates, is inside the - * view, where the area of the view is contracted by the edge slop factor. - * - * @param localX The local x-coordinate. - * @param localY The local y-coordinate. - */ - private boolean pointInView(final int localX, final int localY) { - return (localX >= mEdgeSlop) && (localY >= mEdgeSlop) - && (localX < (mKeyboardView.getWidth() - mEdgeSlop)) - && (localY < (mKeyboardView.getHeight() - mEdgeSlop)); - } - - /** - * Simulates a key press by injecting touch an event into the keyboard view. - * This avoids the complexity of trackers and listeners within the keyboard. - * - * @param key The key to press. - */ - private long simulateKeyPress(final Key key) { - final int x = key.getHitBox().centerX(); - final int y = key.getHitBox().centerY(); - final long downTime = SystemClock.uptimeMillis(); - final MotionEvent downEvent = MotionEvent.obtain( - downTime, downTime, MotionEvent.ACTION_DOWN, x, y, 0); - mKeyboardView.onTouchEvent(downEvent); - downEvent.recycle(); - return downTime; - } - - /** - * Simulates a key release by injecting touch an event into the keyboard view. - * This avoids the complexity of trackers and listeners within the keyboard. - * - * @param key The key to release. - */ - private void simulateKeyRelease(final Key key, final long downTime) { - final int x = key.getHitBox().centerX(); - final int y = key.getHitBox().centerY(); - final MotionEvent upEvent = MotionEvent.obtain( - downTime, SystemClock.uptimeMillis(), MotionEvent.ACTION_UP, x, y, 0); - mKeyboardView.onTouchEvent(upEvent); - upEvent.recycle(); - } - - /** - * Simulates a transition between two {@link Key}s by sending a HOVER_EXIT on the previous key, - * a HOVER_ENTER on the current key, and a HOVER_MOVE on the current key. - * - * @param currentKey The currently hovered key. - * @param previousKey The previously hovered key. - * @param event The event that triggered the transition. - * @return {@code true} if the event was handled. - */ - private boolean onTransitionKey(final Key currentKey, final Key previousKey, - final MotionEvent event) { - final int savedAction = event.getAction(); - event.setAction(MotionEvent.ACTION_HOVER_EXIT); - onHoverKey(previousKey, event); - event.setAction(MotionEvent.ACTION_HOVER_ENTER); - onHoverKey(currentKey, event); - event.setAction(MotionEvent.ACTION_HOVER_MOVE); - final boolean handled = onHoverKey(currentKey, event); - event.setAction(savedAction); - return handled; - } - - /** - * Handles a hover event on a key. If {@link Key} extended View, this would be analogous to - * calling View.onHoverEvent(MotionEvent). - * - * @param key The currently hovered key. - * @param event The hover event. - * @return {@code true} if the event was handled. - */ - private boolean onHoverKey(final Key key, final MotionEvent event) { - // Null keys can't receive events. - if (key == null) { - return false; - } - final KeyboardAccessibilityNodeProvider provider = getAccessibilityNodeProvider(); - - switch (event.getAction()) { - case MotionEvent.ACTION_HOVER_ENTER: - provider.sendAccessibilityEventForKey( - key, AccessibilityEventCompat.TYPE_VIEW_HOVER_ENTER); - provider.performActionForKey( - key, AccessibilityNodeInfoCompat.ACTION_ACCESSIBILITY_FOCUS, null); - break; - case MotionEvent.ACTION_HOVER_EXIT: - provider.sendAccessibilityEventForKey( - key, AccessibilityEventCompat.TYPE_VIEW_HOVER_EXIT); - break; - } - return true; - } } |