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/*
* Copyright (C) 2008 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.launcher2;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.pm.ActivityInfo;
import android.content.pm.PackageManager;
import android.widget.Toast;
import com.android.launcher.R;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.Set;
public class InstallShortcutReceiver extends BroadcastReceiver {
public static final String ACTION_INSTALL_SHORTCUT =
"com.android.launcher.action.INSTALL_SHORTCUT";
public static final String NEW_APPS_PAGE_KEY = "apps.new.page";
public static final String NEW_APPS_LIST_KEY = "apps.new.list";
public static final int NEW_SHORTCUT_BOUNCE_DURATION = 450;
public static final int NEW_SHORTCUT_STAGGER_DELAY = 75;
private static final int INSTALL_SHORTCUT_SUCCESSFUL = 0;
private static final int INSTALL_SHORTCUT_IS_DUPLICATE = -1;
private static final int INSTALL_SHORTCUT_NO_SPACE = -2;
// A mime-type representing shortcut data
public static final String SHORTCUT_MIMETYPE =
"com.android.launcher/shortcut";
private final int[] mCoordinates = new int[2];
public void onReceive(Context context, Intent data) {
if (!ACTION_INSTALL_SHORTCUT.equals(data.getAction())) {
return;
}
String spKey = LauncherApplication.getSharedPreferencesKey();
SharedPreferences sp = context.getSharedPreferences(spKey, Context.MODE_PRIVATE);
final int screen = Launcher.getScreen();
final Intent intent = data.getParcelableExtra(Intent.EXTRA_SHORTCUT_INTENT);
if (intent == null) {
return;
}
// This name is only used for comparisons and notifications, so fall back to activity name
// if not supplied
String name = data.getStringExtra(Intent.EXTRA_SHORTCUT_NAME);
if (name == null) {
try {
PackageManager pm = context.getPackageManager();
ActivityInfo info = pm.getActivityInfo(intent.getComponent(), 0);
name = info.loadLabel(pm).toString();
} catch (PackageManager.NameNotFoundException nnfe) {
return;
}
}
final ArrayList<ItemInfo> items = LauncherModel.getItemsInLocalCoordinates(context);
final boolean exists = LauncherModel.shortcutExists(context, name, intent);
final int[] result = {INSTALL_SHORTCUT_SUCCESSFUL};
// Try adding the target to the workspace screens incrementally, starting at the current
// screen and alternating between +1, -1, +2, -2, etc. (using ~ ceil(i/2f)*(-1)^(i-1))
boolean found = false;
for (int i = 0; i < (2 * Launcher.SCREEN_COUNT) + 1 && !found; ++i) {
int si = screen + (int) ((i / 2f) + 0.5f) * ((i % 2 == 1) ? 1 : -1);
if (0 <= si && si < Launcher.SCREEN_COUNT) {
found = installShortcut(context, data, items, name, intent, si, exists, sp, result);
}
}
// We only report error messages (duplicate shortcut or out of space) as the add-animation
// will provide feedback otherwise
if (!found) {
if (result[0] == INSTALL_SHORTCUT_NO_SPACE) {
Toast.makeText(context, context.getString(R.string.out_of_space),
Toast.LENGTH_SHORT).show();
} else if (result[0] == INSTALL_SHORTCUT_IS_DUPLICATE) {
Toast.makeText(context, context.getString(R.string.shortcut_duplicate, name),
Toast.LENGTH_SHORT).show();
}
}
}
private boolean installShortcut(Context context, Intent data, ArrayList<ItemInfo> items,
String name, Intent intent, int screen, boolean shortcutExists,
SharedPreferences sharedPrefs, int[] result) {
if (findEmptyCell(context, items, mCoordinates, screen)) {
if (intent != null) {
if (intent.getAction() == null) {
intent.setAction(Intent.ACTION_VIEW);
}
// By default, we allow for duplicate entries (located in
// different places)
boolean duplicate = data.getBooleanExtra(Launcher.EXTRA_SHORTCUT_DUPLICATE, true);
if (duplicate || !shortcutExists) {
// If the new app is going to fall into the same page as before, then just
// continue adding to the current page
int newAppsScreen = sharedPrefs.getInt(NEW_APPS_PAGE_KEY, screen);
Set<String> newApps = new HashSet<String>();
if (newAppsScreen == screen) {
newApps = sharedPrefs.getStringSet(NEW_APPS_LIST_KEY, newApps);
}
newApps.add(intent.toUri(0).toString());
sharedPrefs.edit()
.putInt(NEW_APPS_PAGE_KEY, screen)
.putStringSet(NEW_APPS_LIST_KEY, newApps)
.commit();
// Update the Launcher db
LauncherApplication app = (LauncherApplication) context.getApplicationContext();
ShortcutInfo info = app.getModel().addShortcut(context, data,
LauncherSettings.Favorites.CONTAINER_DESKTOP, screen,
mCoordinates[0], mCoordinates[1], true);
if (info == null) {
return false;
}
} else {
result[0] = INSTALL_SHORTCUT_IS_DUPLICATE;
}
return true;
}
} else {
result[0] = INSTALL_SHORTCUT_NO_SPACE;
}
return false;
}
private static boolean findEmptyCell(Context context, ArrayList<ItemInfo> items, int[] xy,
int screen) {
final int xCount = LauncherModel.getCellCountX();
final int yCount = LauncherModel.getCellCountY();
boolean[][] occupied = new boolean[xCount][yCount];
ItemInfo item = null;
int cellX, cellY, spanX, spanY;
for (int i = 0; i < items.size(); ++i) {
item = items.get(i);
if (item.container == LauncherSettings.Favorites.CONTAINER_DESKTOP) {
if (item.screen == screen) {
cellX = item.cellX;
cellY = item.cellY;
spanX = item.spanX;
spanY = item.spanY;
for (int x = cellX; x < cellX + spanX && x < xCount; x++) {
for (int y = cellY; y < cellY + spanY && y < yCount; y++) {
occupied[x][y] = true;
}
}
}
}
}
return CellLayout.findVacantCell(xy, 1, 1, xCount, yCount, occupied);
}
}
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