summaryrefslogtreecommitdiffstats
path: root/src/com/android/launcher3/widget/WidgetsListAdapter.java
blob: a5b2aff1b25e37e1c7415583feb4fca3a14ccb94 (plain)
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
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
/*
 * Copyright (C) 2015 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.launcher3.widget;

import android.content.Context;
import android.content.pm.ResolveInfo;
import android.support.v7.widget.RecyclerView.Adapter;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;

import com.android.launcher3.IconCache;
import com.android.launcher3.Launcher;
import com.android.launcher3.LauncherAppState;
import com.android.launcher3.LauncherAppWidgetProviderInfo;
import com.android.launcher3.R;
import com.android.launcher3.WidgetPreviewLoader;
import com.android.launcher3.compat.UserHandleCompat;

import java.util.List;

/**
 * List view adapter for the widget tray.
 *
 * <p>Memory vs. Performance:
 * The less number of types of views are inserted into a {@link RecyclerView}, the more recycling
 * happens and less memory is consumed. {@link #getItemViewType} was not overridden as there is
 * only a single type of view.
 */
public class WidgetsListAdapter extends Adapter<WidgetsRowViewHolder> {

    private static final String TAG = "WidgetsListAdapter";
    private static final boolean DEBUG = false;

    private Context mContext;
    private Launcher mLauncher;
    private LayoutInflater mLayoutInflater;
    private IconCache mIconCache;

    private WidgetsModel mWidgetsModel;
    private WidgetPreviewLoader mWidgetPreviewLoader;

    private View.OnClickListener mIconClickListener;
    private View.OnLongClickListener mIconLongClickListener;

    public WidgetsListAdapter(Context context,
            View.OnClickListener iconClickListener,
            View.OnLongClickListener iconLongClickListener,
            Launcher launcher) {
        mLayoutInflater = LayoutInflater.from(context);
        mContext = context;

        mIconClickListener = iconClickListener;
        mIconLongClickListener = iconLongClickListener;

        mLauncher = launcher;
        mIconCache = LauncherAppState.getInstance().getIconCache();
    }

    public void setWidgetsModel(WidgetsModel w) {
        mWidgetsModel = w;
    }

    @Override
    public int getItemCount() {
        return mWidgetsModel.getPackageSize();
    }

    @Override
    public void onBindViewHolder(WidgetsRowViewHolder holder, int pos) {
        List<Object> infoList = mWidgetsModel.getSortedWidgets(pos);

        ViewGroup row = ((ViewGroup) holder.getContent().findViewById(R.id.widgets_cell_list));
        if (DEBUG) {
            Log.d(TAG, String.format(
                    "onBindViewHolder [pos=%d, widget#=%d, row.getChildCount=%d]",
                    pos, infoList.size(), row.getChildCount()));
        }

        // Add more views.
        // if there are too many, hide them.
        int diff = infoList.size() - row.getChildCount();
        if (diff > 0) {
            for (int i = 0; i < diff; i++) {
                WidgetCell widget = new WidgetCell(mContext);
                widget = (WidgetCell) mLayoutInflater.inflate(
                        R.layout.widget_cell, row, false);

                // set up touch.
                widget.setOnClickListener(mIconClickListener);
                widget.setOnLongClickListener(mIconLongClickListener);
                row.addView(widget);
            }
        } else if (diff < 0) {
            for (int i=infoList.size() ; i < row.getChildCount(); i++) {
                row.getChildAt(i).setVisibility(View.GONE);
            }
        }

        // Bind the views in the application info section.
        PackageItemInfo infoOut = mWidgetsModel.getPackageItemInfo(pos);
        if (infoOut.usingLowResIcon) {
            // TODO(hyunyoungs): call this in none UI thread in the same way as BubbleTextView.
            mIconCache.getTitleAndIconForApp(infoOut.packageName,
                    UserHandleCompat.myUserHandle(), false /* useLowResIcon */, infoOut);
        }
        ((TextView) holder.getContent().findViewById(R.id.section)).setText(infoOut.title);
        ImageView iv = (ImageView) holder.getContent().findViewById(R.id.section_image);
        iv.setImageBitmap(infoOut.iconBitmap);

        // Bind the view in the widget horizontal tray region.
        for (int i=0; i < infoList.size(); i++) {
            WidgetCell widget = (WidgetCell) row.getChildAt(i);
            if (getWidgetPreviewLoader() == null) {
                return;
            }
            if (infoList.get(i) instanceof LauncherAppWidgetProviderInfo) {
                LauncherAppWidgetProviderInfo info = (LauncherAppWidgetProviderInfo) infoList.get(i);
                PendingAddWidgetInfo pawi = new PendingAddWidgetInfo(info, null);
                widget.setTag(pawi);
                widget.applyFromAppWidgetProviderInfo(info, -1, mWidgetPreviewLoader);
            } else if (infoList.get(i) instanceof ResolveInfo) {
                ResolveInfo info = (ResolveInfo) infoList.get(i);
                PendingAddShortcutInfo pasi = new PendingAddShortcutInfo(info.activityInfo);
                widget.setTag(pasi);
                widget.applyFromResolveInfo(mLauncher.getPackageManager(), info, mWidgetPreviewLoader);
            }
            widget.setVisibility(View.VISIBLE);
            widget.ensurePreview();
        }
    }

    @Override
    public WidgetsRowViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        if (DEBUG) {
            Log.v(TAG, String.format("\nonCreateViewHolder, [widget#=%d]", viewType));
        }

        ViewGroup container = (ViewGroup) mLayoutInflater.inflate(
                R.layout.widgets_list_row_view, parent, false);
        return new WidgetsRowViewHolder(container);
    }

    @Override
    public void onViewRecycled(WidgetsRowViewHolder holder) {
        ViewGroup row = ((ViewGroup) holder.getContent().findViewById(R.id.widgets_cell_list));

        for (int i = 0; i < row.getChildCount(); i++) {
            WidgetCell widget = (WidgetCell) row.getChildAt(i);
            widget.reset();
        }
    }

    @Override
    public long getItemId(int pos) {
        return pos;
    }

    private WidgetPreviewLoader getWidgetPreviewLoader() {
        if (mWidgetPreviewLoader == null) {
            mWidgetPreviewLoader = LauncherAppState.getInstance().getWidgetCache();
        }
        return mWidgetPreviewLoader;
    }
}