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      1 /*
      2  * Copyright (C) 2017 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
      5  * except in compliance with the License. You may obtain a copy of the License at
      6  *
      7  *      http://www.apache.org/licenses/LICENSE-2.0
      8  *
      9  * Unless required by applicable law or agreed to in writing, software distributed under the
     10  * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
     11  * KIND, either express or implied. See the License for the specific language governing
     12  * permissions and limitations under the License.
     13  */
     14 
     15 package com.android.systemui.tuner;
     16 
     17 import android.content.ComponentName;
     18 import android.content.Context;
     19 import android.content.Intent;
     20 import android.content.pm.ActivityInfo;
     21 import android.content.pm.PackageManager;
     22 import android.content.pm.PackageManager.NameNotFoundException;
     23 import android.content.res.Resources;
     24 import android.content.res.TypedArray;
     25 import android.content.res.XmlResourceParser;
     26 import android.graphics.drawable.Icon;
     27 import android.util.AttributeSet;
     28 import android.util.Xml;
     29 
     30 import com.android.internal.R;
     31 
     32 import org.xmlpull.v1.XmlPullParser;
     33 import org.xmlpull.v1.XmlPullParserException;
     34 
     35 import java.io.IOException;
     36 import java.util.ArrayList;
     37 import java.util.List;
     38 
     39 public class ShortcutParser {
     40     private static final String SHORTCUTS = "android.app.shortcuts";
     41     private static final String SHORTCUT = "shortcut";
     42     private static final String INTENT = "intent";
     43 
     44     private final Context mContext;
     45     private final String mPkg;
     46     private final int mResId;
     47     private final String mName;
     48     private Resources mResources;
     49     private AttributeSet mAttrs;
     50 
     51     public ShortcutParser(Context context, ComponentName component) throws NameNotFoundException {
     52         this(context, component.getPackageName(), component.getClassName(),
     53                 getResId(context, component));
     54     }
     55 
     56     private static int getResId(Context context, ComponentName component)
     57             throws NameNotFoundException {
     58         ActivityInfo i = context.getPackageManager().getActivityInfo(
     59                 component, PackageManager.GET_META_DATA);
     60         int resId = 0;
     61         if (i.metaData != null && i.metaData.containsKey(SHORTCUTS)) {
     62             resId = i.metaData.getInt(SHORTCUTS);
     63         }
     64         return resId;
     65     }
     66 
     67     public ShortcutParser(Context context, String pkg, String name, int resId) {
     68         mContext = context;
     69         mPkg = pkg;
     70         mResId = resId;
     71         mName = name;
     72     }
     73 
     74     public List<Shortcut> getShortcuts() {
     75         List<Shortcut> list = new ArrayList<>();
     76         if (mResId != 0) {
     77             try {
     78                 mResources = mContext.getPackageManager().getResourcesForApplication(mPkg);
     79                 XmlResourceParser parser = mResources.getXml(mResId);
     80                 mAttrs = Xml.asAttributeSet(parser);
     81                 int type;
     82                 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT) {
     83                     if (type != XmlPullParser.START_TAG) {
     84                         continue;
     85                     }
     86                     if (parser.getName().equals(SHORTCUT)) {
     87                         Shortcut c = parseShortcut(parser);
     88                         if (c != null) {
     89                             list.add(c);
     90                         }
     91                     }
     92                 }
     93             } catch (Exception e) {
     94                 e.printStackTrace();
     95             }
     96         }
     97 
     98         return list;
     99     }
    100 
    101     private Shortcut parseShortcut(XmlResourceParser parser)
    102             throws IOException, XmlPullParserException {
    103         final TypedArray sa = mResources.obtainAttributes(mAttrs, R.styleable.Shortcut);
    104         Shortcut c = new Shortcut();
    105 
    106         final boolean enabled = sa.getBoolean(R.styleable.Shortcut_enabled, true);
    107         if (!enabled) return null;
    108         final String id = sa.getString(R.styleable.Shortcut_shortcutId);
    109         final int iconResId = sa.getResourceId(R.styleable.Shortcut_icon, 0);
    110         final int titleResId = sa.getResourceId(R.styleable.Shortcut_shortcutShortLabel, 0);
    111 
    112         c.pkg = mPkg;
    113         c.icon = Icon.createWithResource(mPkg, iconResId);
    114         c.id = id;
    115         c.label = mResources.getString(titleResId);
    116         c.name = mName;
    117         int type;
    118         while ((type = parser.next()) != XmlPullParser.END_TAG) {
    119             if (type != XmlPullParser.START_TAG) {
    120                 continue;
    121             }
    122             if (parser.getName().equals(INTENT)) {
    123                 c.intent = Intent.parseIntent(mResources, parser, mAttrs);
    124             }
    125         }
    126         return c.intent != null ? c : null;
    127     }
    128 
    129     public static class Shortcut {
    130         public Intent intent;
    131         public String label;
    132         public Icon icon;
    133         public String pkg;
    134         public String id;
    135         public String name;
    136 
    137         public static Shortcut create(Context context, String value) {
    138             String[] sp = value.split("::");
    139             try {
    140                 for (Shortcut shortcut : new ShortcutParser(context,
    141                         new ComponentName(sp[0], sp[1])).getShortcuts()) {
    142                     if (shortcut.id.equals(sp[2])) {
    143                         return shortcut;
    144                     }
    145                 }
    146             } catch (NameNotFoundException e) {
    147             }
    148             return null;
    149         }
    150 
    151         @Override
    152         public String toString() {
    153             StringBuilder builder = new StringBuilder();
    154             builder.append(pkg);
    155             builder.append("::");
    156             builder.append(name);
    157             builder.append("::");
    158             builder.append(id);
    159             return builder.toString();
    160         }
    161     }
    162 }
    163