1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
/*
* Copyright (C) 2020 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.customization.picker.grid;
import android.content.Context;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.ViewGroup;
import com.android.customization.model.grid.GridOption;
import com.android.customization.model.grid.GridOptionsManager;
import com.android.wallpaper.R;
import com.android.wallpaper.picker.WorkspaceSurfaceHolderCallback;
import com.android.wallpaper.util.PreviewUtils;
import com.android.wallpaper.util.SurfaceViewUtils;
/** A class to load the {@link GridOption} preview to the view. */
class GridOptionPreviewer {
private final GridOptionsManager mGridManager;
private final ViewGroup mPreviewContainer;
private SurfaceView mGridOptionSurface;
private GridOption mGridOption;
private GridOptionSurfaceHolderCallback mSurfaceCallback;
GridOptionPreviewer(GridOptionsManager gridManager, ViewGroup previewContainer) {
mGridManager = gridManager;
mPreviewContainer = previewContainer;
}
/** Loads the Grid option into the container view. */
public void setGridOption(GridOption gridOption) {
mGridOption = gridOption;
if (mGridOption != null) {
updateWorkspacePreview();
}
}
/** Releases the view resource. */
public void release() {
if (mGridOptionSurface != null) {
mSurfaceCallback.cleanUp();
mGridOptionSurface = null;
}
mPreviewContainer.removeAllViews();
}
private void updateWorkspacePreview() {
// Reattach SurfaceView to trigger #surfaceCreated to update preview for different option.
mPreviewContainer.removeAllViews();
if (mSurfaceCallback != null) {
mSurfaceCallback.cleanUp();
mSurfaceCallback.resetLastSurface();
if (mGridOptionSurface != null) {
mGridOptionSurface.getHolder().removeCallback(mSurfaceCallback);
}
}
mGridOptionSurface = new SurfaceView(mPreviewContainer.getContext());
mGridOptionSurface.setLayoutParams(new ViewGroup.LayoutParams(
ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
mGridOptionSurface.setZOrderMediaOverlay(true);
mSurfaceCallback = new GridOptionSurfaceHolderCallback(mGridOptionSurface,
mGridOptionSurface.getContext());
mGridOptionSurface.getHolder().addCallback(mSurfaceCallback);
mPreviewContainer.addView(mGridOptionSurface);
}
private class GridOptionSurfaceHolderCallback extends WorkspaceSurfaceHolderCallback {
private GridOptionSurfaceHolderCallback(SurfaceView workspaceSurface, Context context) {
super(
workspaceSurface,
new PreviewUtils(
context, context.getString(R.string.grid_control_metadata_name)));
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
if (mGridOption != null) {
super.surfaceCreated(holder);
}
}
@Override
protected void requestPreview(SurfaceView workspaceSurface,
PreviewUtils.WorkspacePreviewCallback callback) {
mGridManager.renderPreview(
SurfaceViewUtils.createSurfaceViewRequest(workspaceSurface),
mGridOption.name, callback);
}
}
}
|
