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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.ContentValues;
import android.content.Intent;
import android.graphics.Bitmap;
import android.util.Log;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
/**
* Represents an item in the launcher.
*/
class ItemInfo {
static final int NO_ID = -1;
/**
* The id in the settings database for this item
*/
long id = NO_ID;
/**
* One of {@link LauncherSettings.Favorites#ITEM_TYPE_APPLICATION},
* {@link LauncherSettings.Favorites#ITEM_TYPE_SHORTCUT},
* {@link LauncherSettings.Favorites#ITEM_TYPE_FOLDER}, or
* {@link LauncherSettings.Favorites#ITEM_TYPE_APPWIDGET}.
*/
int itemType;
/**
* The id of the container that holds this item. For the desktop, this will be
* {@link LauncherSettings.Favorites#CONTAINER_DESKTOP}. For the all applications folder it
* will be {@link #NO_ID} (since it is not stored in the settings DB). For user folders
* it will be the id of the folder.
*/
long container = NO_ID;
/**
* Iindicates the screen in which the shortcut appears.
*/
int screen = -1;
/**
* Indicates the X position of the associated cell.
*/
int cellX = -1;
/**
* Indicates the Y position of the associated cell.
*/
int cellY = -1;
/**
* Indicates the X cell span.
*/
int spanX = 1;
/**
* Indicates the Y cell span.
*/
int spanY = 1;
/**
* Indicates the minimum X cell span.
*/
int minSpanX = 1;
/**
* Indicates the minimum Y cell span.
*/
int minSpanY = 1;
/**
* Indicates that this item needs to be updated in the db
*/
boolean requiresDbUpdate = false;
/**
* Title of the item
*/
CharSequence title;
/**
* The position of the item in a drag-and-drop operation.
*/
int[] dropPos = null;
ItemInfo() {
}
ItemInfo(ItemInfo info) {
id = info.id;
cellX = info.cellX;
cellY = info.cellY;
spanX = info.spanX;
spanY = info.spanY;
screen = info.screen;
itemType = info.itemType;
container = info.container;
// tempdebug:
LauncherModel.checkItemInfo(this);
}
/** Returns the package name that the intent will resolve to, or an empty string if
* none exists. */
static String getPackageName(Intent intent) {
if (intent != null) {
String packageName = intent.getPackage();
if (packageName == null && intent.getComponent() != null) {
packageName = intent.getComponent().getPackageName();
}
if (packageName != null) {
return packageName;
}
}
return "";
}
/**
* Write the fields of this item to the DB
*
* @param values
*/
void onAddToDatabase(ContentValues values) {
values.put(LauncherSettings.BaseLauncherColumns.ITEM_TYPE, itemType);
values.put(LauncherSettings.Favorites.CONTAINER, container);
values.put(LauncherSettings.Favorites.SCREEN, screen);
values.put(LauncherSettings.Favorites.CELLX, cellX);
values.put(LauncherSettings.Favorites.CELLY, cellY);
values.put(LauncherSettings.Favorites.SPANX, spanX);
values.put(LauncherSettings.Favorites.SPANY, spanY);
}
void updateValuesWithCoordinates(ContentValues values, int cellX, int cellY) {
values.put(LauncherSettings.Favorites.CELLX, cellX);
values.put(LauncherSettings.Favorites.CELLY, cellY);
}
static byte[] flattenBitmap(Bitmap bitmap) {
// Try go guesstimate how much space the icon will take when serialized
// to avoid unnecessary allocations/copies during the write.
int size = bitmap.getWidth() * bitmap.getHeight() * 4;
ByteArrayOutputStream out = new ByteArrayOutputStream(size);
try {
bitmap.compress(Bitmap.CompressFormat.PNG, 100, out);
out.flush();
out.close();
return out.toByteArray();
} catch (IOException e) {
Log.w("Favorite", "Could not write icon");
return null;
}
}
static void writeBitmap(ContentValues values, Bitmap bitmap) {
if (bitmap != null) {
byte[] data = flattenBitmap(bitmap);
values.put(LauncherSettings.Favorites.ICON, data);
}
}
/**
* It is very important that sub-classes implement this if they contain any references
* to the activity (anything in the view hierarchy etc.). If not, leaks can result since
* ItemInfo objects persist across rotation and can hence leak by holding stale references
* to the old view hierarchy / activity.
*/
void unbind() {
}
@Override
public String toString() {
return "Item(id=" + this.id + " type=" + this.itemType + " container=" + this.container
+ " screen=" + screen + " cellX=" + cellX + " cellY=" + cellY + " spanX=" + spanX
+ " spanY=" + spanY + " dropPos=" + dropPos + ")";
}
}