Support more keys accessibility mode

Bug: 12491371
Change-Id: Ib1fc8affbccfbaca3424ecdc2812f47047106aa2

1 files changed, 67 insertions, 0 deletions

diff --git a/java/src/com/android/inputmethod/accessibility/AccessibilityLongPressTimer.java b/java/src/com/android/inputmethod/accessibility/AccessibilityLongPressTimer.java
new file mode 100644
index 000000000..967cafad0
--- /dev/null
+++ b/java/src/com/android/inputmethod/accessibility/AccessibilityLongPressTimer.java
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.inputmethod.accessibility;
+
+import android.content.Context;
+import android.os.Handler;
+import android.os.Message;
+
+import com.android.inputmethod.keyboard.Key;
+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);
+    }
+
+    private static final int MSG_LONG_PRESS = 1;
+
+    private final LongPressTimerCallback mCallback;
+    private final long mConfigAccessibilityLongPressTimeout;
+
+    public AccessibilityLongPressTimer(final LongPressTimerCallback callback,
+            final Context context) {
+        super();
+        mCallback = callback;
+        mConfigAccessibilityLongPressTimeout = context.getResources().getInteger(
+                R.integer.config_accessibility_long_press_key_timeout);
+    }
+
+    @Override
+    public void handleMessage(final Message msg) {
+        switch (msg.what) {
+        case MSG_LONG_PRESS:
+            cancelLongPress();
+            mCallback.onLongPressed((Key)msg.obj);
+            return;
+        default:
+            super.handleMessage(msg);
+            return;
+        }
+    }
+
+    public void startLongPress(final Key key) {
+        cancelLongPress();
+        final Message longPressMessage = obtainMessage(MSG_LONG_PRESS, key);
+        sendMessageDelayed(longPressMessage, mConfigAccessibilityLongPressTimeout);
+    }
+
+    public void cancelLongPress() {
+        removeMessages(MSG_LONG_PRESS);
+    }
+}