/*
* Copyright (C) 2007 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.server.policy;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.content.pm.PackageManager;
import android.content.res.XmlResourceParser;
import android.text.TextUtils;
import android.util.Log;
import android.util.SparseArray;
import android.view.KeyCharacterMap;
import android.view.KeyEvent;
import com.android.internal.util.XmlUtils;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import java.io.IOException;
/**
* Manages quick launch shortcuts by:
* <li> Keeping the local copy in sync with the database (this is an observer)
* <li> Returning a shortcut-matching intent to clients
*/
class ShortcutManager {
private static final String TAG = "ShortcutManager";
private static final String TAG_BOOKMARKS = "bookmarks";
private static final String TAG_BOOKMARK = "bookmark";
private static final String ATTRIBUTE_PACKAGE = "package";
private static final String ATTRIBUTE_CLASS = "class";
private static final String ATTRIBUTE_SHORTCUT = "shortcut";
private static final String ATTRIBUTE_CATEGORY = "category";
private static final String ATTRIBUTE_SHIFT = "shift";
private final SparseArray<ShortcutInfo> mShortcuts = new SparseArray<>();
private final SparseArray<ShortcutInfo> mShiftShortcuts = new SparseArray<>();
private final Context mContext;
public ShortcutManager(Context context) {
mContext = context;
loadShortcuts();
}
/**
* Gets the shortcut intent for a given keycode+modifier. Make sure you
* strip whatever modifier is used for invoking shortcuts (for example,
* if 'Sym+A' should invoke a shortcut on 'A', you should strip the
* 'Sym' bit from the modifiers before calling this method.
* <p>
* This will first try an exact match (with modifiers), and then try a
* match without modifiers (primary character on a key).
*
* @param kcm The key character map of the device on which the key was pressed.
* @param keyCode The key code.
* @param metaState The meta state, omitting any modifiers that were used
* to invoke the shortcut.
* @return The intent that matches the shortcut, or null if not found.
*/
public Intent getIntent(KeyCharacterMap kcm, int keyCode, int metaState) {
ShortcutInfo shortcut = null;
// If the Shift key is pressed, then search for the shift shortcuts.
boolean isShiftOn = (metaState & KeyEvent.META_SHIFT_ON) == KeyEvent.META_SHIFT_ON;
SparseArray<ShortcutInfo> shortcutMap = isShiftOn ? mShiftShortcuts : mShortcuts;
// First try the exact keycode (with modifiers).
int shortcutChar = kcm.get(keyCode, metaState);
if (shortcutChar != 0) {
shortcut = shortcutMap.get(shortcutChar);
}
// Next try the primary character on that key.
if (shortcut == null) {
shortcutChar = Character.toLowerCase(kcm.getDisplayLabel(keyCode));
if (shortcutChar != 0) {
shortcut = shortcutMap.get(shortcutChar);
}
}
return (shortcut != null) ? shortcut.intent : null;
}
private void loadShortcuts() {
PackageManager packageManager = mContext.getPackageManager();
try {
XmlResourceParser parser = mContext.getResources().getXml(
com.android.internal.R.xml.bookmarks);
XmlUtils.beginDocument(parser, TAG_BOOKMARKS);
while (true) {
XmlUtils.nextElement(parser);
if (parser.getEventType() == XmlPullParser.END_DOCUMENT) {
break;
}
if (!TAG_BOOKMARK.equals(parser.getName())) {
break;
}
String packageName = parser.getAttributeValue(null, ATTRIBUTE_PACKAGE);
String className = parser.getAttributeValue(null, ATTRIBUTE_CLASS);
String shortcutName = parser.getAttributeValue(null, ATTRIBUTE_SHORTCUT);
String categoryName = parser.getAttributeValue(null, ATTRIBUTE_CATEGORY);
String shiftName = parser.getAttributeValue(null, ATTRIBUTE_SHIFT);
if (TextUtils.isEmpty(shortcutName)) {
Log.w(TAG, "Unable to get shortcut for: " + packageName + "/" + className);
continue;
}
final int shortcutChar = shortcutName.charAt(0);
final boolean isShiftShortcut = (shiftName != null && shiftName.equals("true"));
final Intent intent;
final String title;
if (packageName != null && className != null) {
ActivityInfo info = null;
ComponentName componentName = new ComponentName(packageName, className);
try {
info = packageManager.getActivityInfo(componentName,
PackageManager.MATCH_DIRECT_BOOT_AWARE
| PackageManager.MATCH_DIRECT_BOOT_UNAWARE
| PackageManager.MATCH_UNINSTALLED_PACKAGES);
} catch (PackageManager.NameNotFoundException e) {
String[] packages = packageManager.canonicalToCurrentPackageNames(
new String[] { packageName });
componentName = new ComponentName(packages[0], className);
try {
info = packageManager.getActivityInfo(componentName,
PackageManager.MATCH_DIRECT_BOOT_AWARE
| PackageManager.MATCH_DIRECT_BOOT_UNAWARE
| PackageManager.MATCH_UNINSTALLED_PACKAGES);
} catch (PackageManager.NameNotFoundException e1) {
Log.w(TAG, "Unable to add bookmark: " + packageName
+ "/" + className, e);
continue;
}
}
intent = new Intent(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_LAUNCHER);
intent.setComponent(componentName);
title = info.loadLabel(packageManager).toString();
} else if (categoryName != null) {
intent = Intent.makeMainSelectorActivity(Intent.ACTION_MAIN, categoryName);
title = "";
} else {
Log.w(TAG, "Unable to add bookmark for shortcut " + shortcutName
+ ": missing package/class or category attributes");
continue;
}
ShortcutInfo shortcut = new ShortcutInfo(title, intent);
if (isShiftShortcut) {
mShiftShortcuts.put(shortcutChar, shortcut);
} else {
mShortcuts.put(shortcutChar, shortcut);
}
}
} catch (XmlPullParserException e) {
Log.w(TAG, "Got exception parsing bookmarks.", e);
} catch (IOException e) {
Log.w(TAG, "Got exception parsing bookmarks.", e);
}
}
private static final class ShortcutInfo {
public final String title;
public final Intent intent;
public ShortcutInfo(String title, Intent intent) {
this.title = title;
this.intent = intent;
}
}
}