1 /* 2 * Copyright (C) 2013 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.inputmethod.keyboard.internal; 18 19 import android.os.Message; 20 21 import com.android.inputmethod.keyboard.Key; 22 import com.android.inputmethod.keyboard.internal.DrawingHandler.Callbacks; 23 import com.android.inputmethod.latin.SuggestedWords; 24 import com.android.inputmethod.latin.utils.LeakGuardHandlerWrapper; 25 26 // TODO: Separate this class into KeyPreviewHandler and BatchInputPreviewHandler or so. 27 public class DrawingHandler extends LeakGuardHandlerWrapper<Callbacks> { 28 public interface Callbacks { 29 public void dismissKeyPreviewWithoutDelay(Key key); 30 public void dismissAllKeyPreviews(); 31 public void showGestureFloatingPreviewText(SuggestedWords suggestedWords); 32 } 33 34 private static final int MSG_DISMISS_KEY_PREVIEW = 0; 35 private static final int MSG_DISMISS_GESTURE_FLOATING_PREVIEW_TEXT = 1; 36 37 public DrawingHandler(final Callbacks ownerInstance) { 38 super(ownerInstance); 39 } 40 41 @Override 42 public void handleMessage(final Message msg) { 43 final Callbacks callbacks = getOwnerInstance(); 44 if (callbacks == null) { 45 return; 46 } 47 switch (msg.what) { 48 case MSG_DISMISS_KEY_PREVIEW: 49 callbacks.dismissKeyPreviewWithoutDelay((Key)msg.obj); 50 break; 51 case MSG_DISMISS_GESTURE_FLOATING_PREVIEW_TEXT: 52 callbacks.showGestureFloatingPreviewText(SuggestedWords.EMPTY); 53 break; 54 } 55 } 56 57 public void dismissKeyPreview(final long delay, final Key key) { 58 sendMessageDelayed(obtainMessage(MSG_DISMISS_KEY_PREVIEW, key), delay); 59 } 60 61 private void cancelAllDismissKeyPreviews() { 62 removeMessages(MSG_DISMISS_KEY_PREVIEW); 63 final Callbacks callbacks = getOwnerInstance(); 64 if (callbacks == null) { 65 return; 66 } 67 callbacks.dismissAllKeyPreviews(); 68 } 69 70 public void dismissGestureFloatingPreviewText(final long delay) { 71 sendMessageDelayed(obtainMessage(MSG_DISMISS_GESTURE_FLOATING_PREVIEW_TEXT), delay); 72 } 73 74 public void cancelAllMessages() { 75 cancelAllDismissKeyPreviews(); 76 } 77 } 78
