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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.launcher;
import android.widget.CursorAdapter;
import android.widget.TextView;
import android.widget.ImageView;
import android.content.Context;
import android.content.Intent;
import android.content.res.Resources;
import android.content.pm.PackageManager;
import android.view.View;
import android.view.ViewGroup;
import android.view.LayoutInflater;
import android.database.Cursor;
import android.provider.LiveFolders;
import android.graphics.drawable.Drawable;
import android.graphics.BitmapFactory;
import android.graphics.Bitmap;
import java.net.URISyntaxException;
import java.util.HashMap;
import java.lang.ref.SoftReference;
class LiveFolderAdapter extends CursorAdapter {
private boolean mIsList;
private LayoutInflater mInflater;
private final HashMap<String, Drawable> mIcons = new HashMap<String, Drawable>();
private final HashMap<Long, SoftReference<Drawable>> mCustomIcons =
new HashMap<Long, SoftReference<Drawable>>();
private final Launcher mLauncher;
LiveFolderAdapter(Launcher launcher, LiveFolderInfo info, Cursor cursor) {
super(launcher, cursor, true);
mIsList = info.displayMode == LiveFolders.DISPLAY_MODE_LIST;
mInflater = LayoutInflater.from(launcher);
mLauncher = launcher;
mLauncher.startManagingCursor(getCursor());
}
static Cursor query(Context context, LiveFolderInfo info) {
return context.getContentResolver().query(info.uri, null, null,
null, LiveFolders.NAME + " ASC");
}
public View newView(Context context, Cursor cursor, ViewGroup parent) {
View view;
final ViewHolder holder = new ViewHolder();
if (!mIsList) {
view = mInflater.inflate(R.layout.application_boxed, parent, false);
} else {
view = mInflater.inflate(R.layout.application_list, parent, false);
holder.description = (TextView) view.findViewById(R.id.description);
holder.icon = (ImageView) view.findViewById(R.id.icon);
}
holder.name = (TextView) view.findViewById(R.id.name);
holder.idIndex = cursor.getColumnIndexOrThrow(LiveFolders._ID);
holder.nameIndex = cursor.getColumnIndexOrThrow(LiveFolders.NAME);
holder.descriptionIndex = cursor.getColumnIndex(LiveFolders.DESCRIPTION);
holder.intentIndex = cursor.getColumnIndex(LiveFolders.INTENT);
holder.iconBitmapIndex = cursor.getColumnIndex(LiveFolders.ICON_BITMAP);
holder.iconResourceIndex = cursor.getColumnIndex(LiveFolders.ICON_RESOURCE);
holder.iconPackageIndex = cursor.getColumnIndex(LiveFolders.ICON_PACKAGE);
view.setTag(holder);
return view;
}
public void bindView(View view, Context context, Cursor cursor) {
final ViewHolder holder = (ViewHolder) view.getTag();
holder.id = cursor.getLong(holder.idIndex);
final Drawable icon = loadIcon(context, cursor, holder);
holder.name.setText(cursor.getString(holder.nameIndex));
if (!mIsList) {
holder.name.setCompoundDrawablesWithIntrinsicBounds(null, icon, null, null);
} else {
final boolean hasIcon = icon != null;
holder.icon.setVisibility(hasIcon ? View.VISIBLE : View.GONE);
if (hasIcon) holder.icon.setImageDrawable(icon);
if (holder.descriptionIndex != -1) {
final String description = cursor.getString(holder.descriptionIndex);
if (description != null) {
holder.description.setText(description);
holder.description.setVisibility(View.VISIBLE);
} else {
holder.description.setVisibility(View.GONE);
}
} else {
holder.description.setVisibility(View.GONE);
}
}
if (holder.intentIndex != -1) {
try {
holder.intent = Intent.getIntent(cursor.getString(holder.intentIndex));
} catch (URISyntaxException e) {
// Ignore
}
} else {
holder.useBaseIntent = true;
}
}
private Drawable loadIcon(Context context, Cursor cursor, ViewHolder holder) {
Drawable icon = null;
byte[] data = null;
if (holder.iconBitmapIndex != -1) {
data = cursor.getBlob(holder.iconBitmapIndex);
}
if (data != null) {
final SoftReference<Drawable> reference = mCustomIcons.get(holder.id);
if (reference != null) {
icon = reference.get();
}
if (icon == null) {
final Bitmap bitmap = BitmapFactory.decodeByteArray(data, 0, data.length);
icon = new FastBitmapDrawable(Utilities.createBitmapThumbnail(bitmap, mContext));
mCustomIcons.put(holder.id, new SoftReference<Drawable>(icon));
}
} else if (holder.iconResourceIndex != -1 && holder.iconPackageIndex != -1) {
final String resource = cursor.getString(holder.iconResourceIndex);
icon = mIcons.get(resource);
if (icon == null) {
try {
final PackageManager packageManager = context.getPackageManager();
Resources resources = packageManager.getResourcesForApplication(
cursor.getString(holder.iconPackageIndex));
final int id = resources.getIdentifier(resource,
null, null);
icon = Utilities.createIconThumbnail(resources.getDrawable(id), mContext);
mIcons.put(resource, icon);
} catch (Exception e) {
// Ignore
}
}
}
return icon;
}
void cleanup() {
for (Drawable icon : mIcons.values()) {
icon.setCallback(null);
}
mIcons.clear();
for (SoftReference<Drawable> icon : mCustomIcons.values()) {
final Drawable drawable = icon.get();
if (drawable != null) {
drawable.setCallback(null);
}
}
mCustomIcons.clear();
final Cursor cursor = getCursor();
if (cursor != null) {
try {
cursor.close();
} finally {
mLauncher.stopManagingCursor(cursor);
}
}
}
static class ViewHolder {
TextView name;
TextView description;
ImageView icon;
Intent intent;
long id;
boolean useBaseIntent;
int idIndex;
int nameIndex;
int descriptionIndex = -1;
int intentIndex = -1;
int iconBitmapIndex = -1;
int iconResourceIndex = -1;
int iconPackageIndex = -1;
}
}
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