1/*
2 * Copyright (C) 2012 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
17package com.android.launcher3;
18
19import android.view.View;
20
21public class CheckLongPressHelper {
22    private View mView;
23    private boolean mHasPerformedLongPress;
24    private CheckForLongPress mPendingCheckForLongPress;
25
26    class CheckForLongPress implements Runnable {
27        public void run() {
28            if ((mView.getParent() != null) && mView.hasWindowFocus()
29                    && !mHasPerformedLongPress) {
30                if (mView.performLongClick()) {
31                    mView.setPressed(false);
32                    mHasPerformedLongPress = true;
33                }
34            }
35        }
36    }
37
38    public CheckLongPressHelper(View v) {
39        mView = v;
40    }
41
42    public void postCheckForLongPress() {
43        mHasPerformedLongPress = false;
44
45        if (mPendingCheckForLongPress == null) {
46            mPendingCheckForLongPress = new CheckForLongPress();
47        }
48        mView.postDelayed(mPendingCheckForLongPress,
49                LauncherAppState.getInstance().getLongPressTimeout());
50    }
51
52    public void cancelLongPress() {
53        mHasPerformedLongPress = false;
54        if (mPendingCheckForLongPress != null) {
55            mView.removeCallbacks(mPendingCheckForLongPress);
56            mPendingCheckForLongPress = null;
57        }
58    }
59
60    public boolean hasPerformedLongPress() {
61        return mHasPerformedLongPress;
62    }
63}
64