Separate MainKeyboardView specific accessibility code
Change-Id: I0d73b4cf60145b6e34bd89f72eb49de3c686f5e3main
Tadashi G. Takaoka
parent
524392adfa
commit
4d146d5e3e
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@ -16,64 +16,26 @@
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package com.android.inputmethod.accessibility;
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import android.content.Context;
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import android.os.SystemClock;
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import android.support.v4.view.AccessibilityDelegateCompat;
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import android.support.v4.view.ViewCompat;
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import android.support.v4.view.accessibility.AccessibilityEventCompat;
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import android.support.v4.view.accessibility.AccessibilityNodeInfoCompat;
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import android.util.SparseIntArray;
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import android.view.MotionEvent;
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import android.view.View;
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import android.view.ViewParent;
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import android.view.accessibility.AccessibilityEvent;
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import com.android.inputmethod.keyboard.Key;
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import com.android.inputmethod.keyboard.KeyDetector;
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import com.android.inputmethod.keyboard.Keyboard;
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import com.android.inputmethod.keyboard.KeyboardId;
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import com.android.inputmethod.keyboard.KeyboardView;
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import com.android.inputmethod.latin.R;
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import com.android.inputmethod.latin.utils.SubtypeLocaleUtils;
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public class KeyboardAccessibilityDelegate extends AccessibilityDelegateCompat {
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/** Map of keyboard modes to resource IDs. */
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private static final SparseIntArray KEYBOARD_MODE_RES_IDS = new SparseIntArray();
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static {
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KEYBOARD_MODE_RES_IDS.put(KeyboardId.MODE_DATE, R.string.keyboard_mode_date);
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KEYBOARD_MODE_RES_IDS.put(KeyboardId.MODE_DATETIME, R.string.keyboard_mode_date_time);
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KEYBOARD_MODE_RES_IDS.put(KeyboardId.MODE_EMAIL, R.string.keyboard_mode_email);
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KEYBOARD_MODE_RES_IDS.put(KeyboardId.MODE_IM, R.string.keyboard_mode_im);
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KEYBOARD_MODE_RES_IDS.put(KeyboardId.MODE_NUMBER, R.string.keyboard_mode_number);
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KEYBOARD_MODE_RES_IDS.put(KeyboardId.MODE_PHONE, R.string.keyboard_mode_phone);
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KEYBOARD_MODE_RES_IDS.put(KeyboardId.MODE_TEXT, R.string.keyboard_mode_text);
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KEYBOARD_MODE_RES_IDS.put(KeyboardId.MODE_TIME, R.string.keyboard_mode_time);
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KEYBOARD_MODE_RES_IDS.put(KeyboardId.MODE_URL, R.string.keyboard_mode_url);
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}
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private final KeyboardView mKeyboardView;
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private final KeyDetector mKeyDetector;
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public abstract class KeyboardAccessibilityDelegate<KV extends KeyboardView>
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extends AccessibilityDelegateCompat {
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protected final KV mKeyboardView;
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protected final KeyDetector mKeyDetector;
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private Keyboard mKeyboard;
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private KeyboardAccessibilityNodeProvider mAccessibilityNodeProvider;
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private Key mLastHoverKey = null;
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/**
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* Inset in pixels to look for keys when the user's finger exits the keyboard area.
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*/
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private int mEdgeSlop;
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/** The most recently set keyboard mode. */
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private int mLastKeyboardMode = KEYBOARD_IS_HIDDEN;
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private static final int KEYBOARD_IS_HIDDEN = -1;
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public KeyboardAccessibilityDelegate(final KeyboardView keyboardView,
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final KeyDetector keyDetector) {
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public KeyboardAccessibilityDelegate(final KV keyboardView, final KeyDetector keyDetector) {
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super();
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final Context context = keyboardView.getContext();
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mEdgeSlop = context.getResources().getDimensionPixelSize(
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R.dimen.config_accessibility_edge_slop);
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mKeyboardView = keyboardView;
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mKeyDetector = keyDetector;
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@ -95,121 +57,11 @@ public class KeyboardAccessibilityDelegate extends AccessibilityDelegateCompat {
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if (mAccessibilityNodeProvider != null) {
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mAccessibilityNodeProvider.setKeyboard(keyboard);
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}
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final Keyboard lastKeyboard = mKeyboard;
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final int lastKeyboardMode = mLastKeyboardMode;
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mKeyboard = keyboard;
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mLastKeyboardMode = keyboard.mId.mMode;
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// Since this method is called even when accessibility is off, make sure
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// to check the state before announcing anything.
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if (!AccessibilityUtils.getInstance().isAccessibilityEnabled()) {
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return;
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}
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// Announce the language name only when the language is changed.
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if (lastKeyboard == null || !keyboard.mId.mSubtype.equals(lastKeyboard.mId.mSubtype)) {
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announceKeyboardLanguage(keyboard);
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return;
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}
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// Announce the mode only when the mode is changed.
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if (keyboard.mId.mMode != lastKeyboardMode) {
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announceKeyboardMode(keyboard);
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return;
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}
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// Announce the keyboard type only when the type is changed.
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if (keyboard.mId.mElementId != lastKeyboard.mId.mElementId) {
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announceKeyboardType(keyboard, lastKeyboard);
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return;
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}
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}
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/**
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* Called when the keyboard is hidden and accessibility is enabled.
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*/
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public void onHideWindow() {
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announceKeyboardHidden();
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mLastKeyboardMode = KEYBOARD_IS_HIDDEN;
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}
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/**
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* Announces which language of keyboard is being displayed.
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*
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* @param keyboard The new keyboard.
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*/
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private void announceKeyboardLanguage(final Keyboard keyboard) {
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final String languageText = SubtypeLocaleUtils.getSubtypeDisplayNameInSystemLocale(
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keyboard.mId.mSubtype);
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sendWindowStateChanged(languageText);
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}
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/**
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* Announces which type of keyboard is being displayed.
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* If the keyboard type is unknown, no announcement is made.
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*
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* @param keyboard The new keyboard.
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*/
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private void announceKeyboardMode(final Keyboard keyboard) {
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final Context context = mKeyboardView.getContext();
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final int modeTextResId = KEYBOARD_MODE_RES_IDS.get(keyboard.mId.mMode);
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if (modeTextResId == 0) {
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return;
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}
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final String modeText = context.getString(modeTextResId);
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final String text = context.getString(R.string.announce_keyboard_mode, modeText);
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sendWindowStateChanged(text);
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}
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/**
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* Announces which type of keyboard is being displayed.
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*
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* @param keyboard The new keyboard.
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* @param lastKeyboard The last keyboard.
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*/
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private void announceKeyboardType(final Keyboard keyboard, final Keyboard lastKeyboard) {
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final int lastElementId = lastKeyboard.mId.mElementId;
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final int resId;
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switch (keyboard.mId.mElementId) {
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case KeyboardId.ELEMENT_ALPHABET_AUTOMATIC_SHIFTED:
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case KeyboardId.ELEMENT_ALPHABET:
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if (lastElementId == KeyboardId.ELEMENT_ALPHABET
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|| lastElementId == KeyboardId.ELEMENT_ALPHABET_AUTOMATIC_SHIFTED) {
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return;
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}
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resId = R.string.spoken_description_mode_alpha;
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break;
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case KeyboardId.ELEMENT_ALPHABET_MANUAL_SHIFTED:
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resId = R.string.spoken_description_shiftmode_on;
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break;
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case KeyboardId.ELEMENT_ALPHABET_SHIFT_LOCK_SHIFTED:
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case KeyboardId.ELEMENT_ALPHABET_SHIFT_LOCKED:
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resId = R.string.spoken_description_shiftmode_locked;
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break;
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case KeyboardId.ELEMENT_SYMBOLS:
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resId = R.string.spoken_description_mode_symbol;
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break;
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case KeyboardId.ELEMENT_SYMBOLS_SHIFTED:
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resId = R.string.spoken_description_mode_symbol_shift;
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break;
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case KeyboardId.ELEMENT_PHONE:
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resId = R.string.spoken_description_mode_phone;
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break;
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case KeyboardId.ELEMENT_PHONE_SYMBOLS:
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resId = R.string.spoken_description_mode_phone_shift;
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break;
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default:
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return;
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}
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final String text = mKeyboardView.getContext().getString(resId);
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sendWindowStateChanged(text);
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}
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/**
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* Announces that the keyboard has been hidden.
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*/
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private void announceKeyboardHidden() {
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final Context context = mKeyboardView.getContext();
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final String text = context.getString(R.string.announce_keyboard_hidden);
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sendWindowStateChanged(text);
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protected Keyboard getKeyboard() {
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return mKeyboard;
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}
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/**
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@ -217,7 +69,7 @@ public class KeyboardAccessibilityDelegate extends AccessibilityDelegateCompat {
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*
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* @param text The text to send with the event.
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*/
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private void sendWindowStateChanged(final String text) {
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protected void sendWindowStateChanged(final String text) {
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final AccessibilityEvent stateChange = AccessibilityEvent.obtain(
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AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED);
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mKeyboardView.onInitializeAccessibilityEvent(stateChange);
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@ -243,49 +95,10 @@ public class KeyboardAccessibilityDelegate extends AccessibilityDelegateCompat {
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return getAccessibilityNodeProvider();
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}
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/**
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* Receives hover events when touch exploration is turned on in SDK versions ICS and higher.
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*
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* @param event The hover event.
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* @return {@code true} if the event is handled
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*/
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public boolean dispatchHoverEvent(final MotionEvent event) {
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final int x = (int) event.getX();
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final int y = (int) event.getY();
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final Key previousKey = mLastHoverKey;
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final Key key;
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if (pointInView(x, y)) {
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key = mKeyDetector.detectHitKey(x, y);
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} else {
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key = null;
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}
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mLastHoverKey = key;
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switch (event.getAction()) {
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case MotionEvent.ACTION_HOVER_EXIT:
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// Make sure we're not getting an EXIT event because the user slid
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// off the keyboard area, then force a key press.
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if (key != null) {
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final long downTime = simulateKeyPress(key);
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simulateKeyRelease(key, downTime);
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}
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//$FALL-THROUGH$
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case MotionEvent.ACTION_HOVER_ENTER:
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return onHoverKey(key, event);
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case MotionEvent.ACTION_HOVER_MOVE:
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if (key != previousKey) {
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return onTransitionKey(key, previousKey, event);
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}
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return onHoverKey(key, event);
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}
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return false;
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}
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/**
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* @return A lazily-instantiated node provider for this view delegate.
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*/
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private KeyboardAccessibilityNodeProvider getAccessibilityNodeProvider() {
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protected KeyboardAccessibilityNodeProvider getAccessibilityNodeProvider() {
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// Instantiate the provide only when requested. Since the system
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// will call this method multiple times it is a good practice to
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// cache the provider instance.
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@ -296,99 +109,10 @@ public class KeyboardAccessibilityDelegate extends AccessibilityDelegateCompat {
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}
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/**
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* Utility method to determine whether the given point, in local coordinates, is inside the
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* view, where the area of the view is contracted by the edge slop factor.
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* Receives hover events when touch exploration is turned on in SDK versions ICS and higher.
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*
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* @param localX The local x-coordinate.
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* @param localY The local y-coordinate.
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*/
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private boolean pointInView(final int localX, final int localY) {
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return (localX >= mEdgeSlop) && (localY >= mEdgeSlop)
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&& (localX < (mKeyboardView.getWidth() - mEdgeSlop))
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&& (localY < (mKeyboardView.getHeight() - mEdgeSlop));
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}
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/**
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* Simulates a key press by injecting touch an event into the keyboard view.
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* This avoids the complexity of trackers and listeners within the keyboard.
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*
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* @param key The key to press.
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*/
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private long simulateKeyPress(final Key key) {
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final int x = key.getHitBox().centerX();
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final int y = key.getHitBox().centerY();
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final long downTime = SystemClock.uptimeMillis();
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final MotionEvent downEvent = MotionEvent.obtain(
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downTime, downTime, MotionEvent.ACTION_DOWN, x, y, 0);
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mKeyboardView.onTouchEvent(downEvent);
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downEvent.recycle();
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return downTime;
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}
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/**
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* Simulates a key release by injecting touch an event into the keyboard view.
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* This avoids the complexity of trackers and listeners within the keyboard.
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*
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* @param key The key to release.
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*/
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private void simulateKeyRelease(final Key key, final long downTime) {
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final int x = key.getHitBox().centerX();
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final int y = key.getHitBox().centerY();
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final MotionEvent upEvent = MotionEvent.obtain(
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downTime, SystemClock.uptimeMillis(), MotionEvent.ACTION_UP, x, y, 0);
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mKeyboardView.onTouchEvent(upEvent);
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upEvent.recycle();
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}
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/**
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* Simulates a transition between two {@link Key}s by sending a HOVER_EXIT on the previous key,
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* a HOVER_ENTER on the current key, and a HOVER_MOVE on the current key.
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*
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* @param currentKey The currently hovered key.
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* @param previousKey The previously hovered key.
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* @param event The event that triggered the transition.
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* @return {@code true} if the event was handled.
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*/
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private boolean onTransitionKey(final Key currentKey, final Key previousKey,
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final MotionEvent event) {
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final int savedAction = event.getAction();
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event.setAction(MotionEvent.ACTION_HOVER_EXIT);
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onHoverKey(previousKey, event);
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event.setAction(MotionEvent.ACTION_HOVER_ENTER);
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onHoverKey(currentKey, event);
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event.setAction(MotionEvent.ACTION_HOVER_MOVE);
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final boolean handled = onHoverKey(currentKey, event);
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event.setAction(savedAction);
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return handled;
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}
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/**
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* Handles a hover event on a key. If {@link Key} extended View, this would be analogous to
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* calling View.onHoverEvent(MotionEvent).
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*
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* @param key The currently hovered key.
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* @param event The hover event.
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* @return {@code true} if the event was handled.
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* @return {@code true} if the event is handled
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*/
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private boolean onHoverKey(final Key key, final MotionEvent event) {
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// Null keys can't receive events.
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if (key == null) {
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return false;
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}
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final KeyboardAccessibilityNodeProvider provider = getAccessibilityNodeProvider();
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switch (event.getAction()) {
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case MotionEvent.ACTION_HOVER_ENTER:
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provider.sendAccessibilityEventForKey(
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key, AccessibilityEventCompat.TYPE_VIEW_HOVER_ENTER);
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provider.performActionForKey(
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key, AccessibilityNodeInfoCompat.ACTION_ACCESSIBILITY_FOCUS, null);
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break;
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case MotionEvent.ACTION_HOVER_EXIT:
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provider.sendAccessibilityEventForKey(
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key, AccessibilityEventCompat.TYPE_VIEW_HOVER_EXIT);
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break;
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}
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return true;
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}
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public abstract boolean dispatchHoverEvent(final MotionEvent event);
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}
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@ -0,0 +1,328 @@
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/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.inputmethod.accessibility;
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import android.content.Context;
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import android.os.SystemClock;
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import android.support.v4.view.accessibility.AccessibilityEventCompat;
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import android.support.v4.view.accessibility.AccessibilityNodeInfoCompat;
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import android.util.SparseIntArray;
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import android.view.MotionEvent;
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import com.android.inputmethod.keyboard.Key;
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import com.android.inputmethod.keyboard.KeyDetector;
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import com.android.inputmethod.keyboard.Keyboard;
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import com.android.inputmethod.keyboard.KeyboardId;
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import com.android.inputmethod.keyboard.MainKeyboardView;
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import com.android.inputmethod.latin.R;
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import com.android.inputmethod.latin.utils.SubtypeLocaleUtils;
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public final class MainKeyboardAccessibilityDelegate
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extends KeyboardAccessibilityDelegate<MainKeyboardView> {
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/** Map of keyboard modes to resource IDs. */
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private static final SparseIntArray KEYBOARD_MODE_RES_IDS = new SparseIntArray();
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static {
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KEYBOARD_MODE_RES_IDS.put(KeyboardId.MODE_DATE, R.string.keyboard_mode_date);
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KEYBOARD_MODE_RES_IDS.put(KeyboardId.MODE_DATETIME, R.string.keyboard_mode_date_time);
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KEYBOARD_MODE_RES_IDS.put(KeyboardId.MODE_EMAIL, R.string.keyboard_mode_email);
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KEYBOARD_MODE_RES_IDS.put(KeyboardId.MODE_IM, R.string.keyboard_mode_im);
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KEYBOARD_MODE_RES_IDS.put(KeyboardId.MODE_NUMBER, R.string.keyboard_mode_number);
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KEYBOARD_MODE_RES_IDS.put(KeyboardId.MODE_PHONE, R.string.keyboard_mode_phone);
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KEYBOARD_MODE_RES_IDS.put(KeyboardId.MODE_TEXT, R.string.keyboard_mode_text);
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KEYBOARD_MODE_RES_IDS.put(KeyboardId.MODE_TIME, R.string.keyboard_mode_time);
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KEYBOARD_MODE_RES_IDS.put(KeyboardId.MODE_URL, R.string.keyboard_mode_url);
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}
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/** The most recently set keyboard mode. */
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private int mLastKeyboardMode = KEYBOARD_IS_HIDDEN;
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private static final int KEYBOARD_IS_HIDDEN = -1;
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private Key mLastHoverKey = null;
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/**
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* Inset in pixels to look for keys when the user's finger exits the keyboard area.
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*/
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private final int mEdgeSlop;
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public MainKeyboardAccessibilityDelegate(final MainKeyboardView mainKeyboardView,
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final KeyDetector keyDetector) {
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super(mainKeyboardView, keyDetector);
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final Context context = mainKeyboardView.getContext();
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mEdgeSlop = context.getResources().getDimensionPixelSize(
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R.dimen.config_accessibility_edge_slop);
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public void setKeyboard(final Keyboard keyboard) {
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if (keyboard == null) {
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return;
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}
|
||||
final Keyboard lastKeyboard = getKeyboard();
|
||||
super.setKeyboard(keyboard);
|
||||
final int lastKeyboardMode = mLastKeyboardMode;
|
||||
mLastKeyboardMode = keyboard.mId.mMode;
|
||||
|
||||
// Since this method is called even when accessibility is off, make sure
|
||||
// to check the state before announcing anything.
|
||||
if (!AccessibilityUtils.getInstance().isAccessibilityEnabled()) {
|
||||
return;
|
||||
}
|
||||
// Announce the language name only when the language is changed.
|
||||
if (lastKeyboard == null || !keyboard.mId.mSubtype.equals(lastKeyboard.mId.mSubtype)) {
|
||||
announceKeyboardLanguage(keyboard);
|
||||
return;
|
||||
}
|
||||
// Announce the mode only when the mode is changed.
|
||||
if (keyboard.mId.mMode != lastKeyboardMode) {
|
||||
announceKeyboardMode(keyboard);
|
||||
return;
|
||||
}
|
||||
// Announce the keyboard type only when the type is changed.
|
||||
if (keyboard.mId.mElementId != lastKeyboard.mId.mElementId) {
|
||||
announceKeyboardType(keyboard, lastKeyboard);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Called when the keyboard is hidden and accessibility is enabled.
|
||||
*/
|
||||
public void onHideWindow() {
|
||||
announceKeyboardHidden();
|
||||
mLastKeyboardMode = KEYBOARD_IS_HIDDEN;
|
||||
}
|
||||
|
||||
/**
|
||||
* Announces which language of keyboard is being displayed.
|
||||
*
|
||||
* @param keyboard The new keyboard.
|
||||
*/
|
||||
private void announceKeyboardLanguage(final Keyboard keyboard) {
|
||||
final String languageText = SubtypeLocaleUtils.getSubtypeDisplayNameInSystemLocale(
|
||||
keyboard.mId.mSubtype);
|
||||
sendWindowStateChanged(languageText);
|
||||
}
|
||||
|
||||
/**
|
||||
* Announces which type of keyboard is being displayed.
|
||||
* If the keyboard type is unknown, no announcement is made.
|
||||
*
|
||||
* @param keyboard The new keyboard.
|
||||
*/
|
||||
private void announceKeyboardMode(final Keyboard keyboard) {
|
||||
final Context context = mKeyboardView.getContext();
|
||||
final int modeTextResId = KEYBOARD_MODE_RES_IDS.get(keyboard.mId.mMode);
|
||||
if (modeTextResId == 0) {
|
||||
return;
|
||||
}
|
||||
final String modeText = context.getString(modeTextResId);
|
||||
final String text = context.getString(R.string.announce_keyboard_mode, modeText);
|
||||
sendWindowStateChanged(text);
|
||||
}
|
||||
|
||||
/**
|
||||
* Announces which type of keyboard is being displayed.
|
||||
*
|
||||
* @param keyboard The new keyboard.
|
||||
* @param lastKeyboard The last keyboard.
|
||||
*/
|
||||
private void announceKeyboardType(final Keyboard keyboard, final Keyboard lastKeyboard) {
|
||||
final int lastElementId = lastKeyboard.mId.mElementId;
|
||||
final int resId;
|
||||
switch (keyboard.mId.mElementId) {
|
||||
case KeyboardId.ELEMENT_ALPHABET_AUTOMATIC_SHIFTED:
|
||||
case KeyboardId.ELEMENT_ALPHABET:
|
||||
if (lastElementId == KeyboardId.ELEMENT_ALPHABET
|
||||
|| lastElementId == KeyboardId.ELEMENT_ALPHABET_AUTOMATIC_SHIFTED) {
|
||||
return;
|
||||
}
|
||||
resId = R.string.spoken_description_mode_alpha;
|
||||
break;
|
||||
case KeyboardId.ELEMENT_ALPHABET_MANUAL_SHIFTED:
|
||||
resId = R.string.spoken_description_shiftmode_on;
|
||||
break;
|
||||
case KeyboardId.ELEMENT_ALPHABET_SHIFT_LOCK_SHIFTED:
|
||||
case KeyboardId.ELEMENT_ALPHABET_SHIFT_LOCKED:
|
||||
resId = R.string.spoken_description_shiftmode_locked;
|
||||
break;
|
||||
case KeyboardId.ELEMENT_SYMBOLS:
|
||||
resId = R.string.spoken_description_mode_symbol;
|
||||
break;
|
||||
case KeyboardId.ELEMENT_SYMBOLS_SHIFTED:
|
||||
resId = R.string.spoken_description_mode_symbol_shift;
|
||||
break;
|
||||
case KeyboardId.ELEMENT_PHONE:
|
||||
resId = R.string.spoken_description_mode_phone;
|
||||
break;
|
||||
case KeyboardId.ELEMENT_PHONE_SYMBOLS:
|
||||
resId = R.string.spoken_description_mode_phone_shift;
|
||||
break;
|
||||
default:
|
||||
return;
|
||||
}
|
||||
final String text = mKeyboardView.getContext().getString(resId);
|
||||
sendWindowStateChanged(text);
|
||||
}
|
||||
|
||||
/**
|
||||
* Announces that the keyboard has been hidden.
|
||||
*/
|
||||
private void announceKeyboardHidden() {
|
||||
final Context context = mKeyboardView.getContext();
|
||||
final String text = context.getString(R.string.announce_keyboard_hidden);
|
||||
|
||||
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;
|
||||
}
|
||||
}
|
||||
|
|
@ -38,7 +38,7 @@ import android.view.inputmethod.InputMethodSubtype;
|
|||
import android.widget.TextView;
|
||||
|
||||
import com.android.inputmethod.accessibility.AccessibilityUtils;
|
||||
import com.android.inputmethod.accessibility.KeyboardAccessibilityDelegate;
|
||||
import com.android.inputmethod.accessibility.MainKeyboardAccessibilityDelegate;
|
||||
import com.android.inputmethod.annotations.ExternallyReferenced;
|
||||
import com.android.inputmethod.keyboard.internal.DrawingHandler;
|
||||
import com.android.inputmethod.keyboard.internal.DrawingPreviewPlacerView;
|
||||
|
|
@ -170,7 +170,7 @@ public final class MainKeyboardView extends KeyboardView implements PointerTrack
|
|||
private final DrawingHandler mDrawingHandler =
|
||||
new DrawingHandler(this);
|
||||
|
||||
private final KeyboardAccessibilityDelegate mAccessibilityDelegate;
|
||||
private final MainKeyboardAccessibilityDelegate mAccessibilityDelegate;
|
||||
|
||||
public MainKeyboardView(final Context context, final AttributeSet attrs) {
|
||||
this(context, attrs, R.attr.mainKeyboardViewStyle);
|
||||
|
|
@ -269,7 +269,7 @@ public final class MainKeyboardView extends KeyboardView implements PointerTrack
|
|||
mLanguageOnSpacebarHorizontalMargin = (int)getResources().getDimension(
|
||||
R.dimen.config_language_on_spacebar_horizontal_margin);
|
||||
|
||||
mAccessibilityDelegate = new KeyboardAccessibilityDelegate(this, mKeyDetector);
|
||||
mAccessibilityDelegate = new MainKeyboardAccessibilityDelegate(this, mKeyDetector);
|
||||
}
|
||||
|
||||
@Override
|
||||
|
|
|
|||
Loading…
Reference in New Issue