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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 com.android.launcher.R;
import android.content.ComponentName;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.drawable.BitmapDrawable;
import android.util.AttributeSet;
import android.util.Log;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.AnimationUtils;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.GridView;
import android.widget.ImageButton;
import android.widget.RelativeLayout;
import android.widget.TextView;
import java.util.ArrayList;
import java.util.Collections;
public class AllApps2D
extends RelativeLayout
implements AllAppsView,
AdapterView.OnItemClickListener,
AdapterView.OnItemLongClickListener,
View.OnKeyListener,
DragSource {
private static final String TAG = "Launcher.AllApps2D";
private static final boolean DEBUG = false;
private Launcher mLauncher;
private DragController mDragController;
private GridView mGrid;
/** All applications in the system (we might only be showing a subset) */
private ArrayList<ApplicationInfo> mAllAppsList = new ArrayList<ApplicationInfo>();
/** Currently visible applications in the grid */
private ArrayList<ApplicationInfo> mVisibleAppsList = new ArrayList<ApplicationInfo>();
public enum AppType { APP, GAME, DOWNLOADED, ALL };
private AppType mCurrentFilter = AppType.ALL;
// preserve compatibility with 3D all apps:
// 0.0 -> hidden
// 1.0 -> shown and opaque
// intermediate values -> partially shown & partially opaque
private float mZoom;
private AppsAdapter mAppsAdapter;
// ------------------------------------------------------------
public static class HomeButton extends ImageButton {
public HomeButton(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
public View focusSearch(int direction) {
if (direction == FOCUS_UP) return super.focusSearch(direction);
return null;
}
}
public class AppsAdapter extends ArrayAdapter<ApplicationInfo> {
private final LayoutInflater mInflater;
public AppsAdapter(Context context, ArrayList<ApplicationInfo> apps) {
super(context, 0, apps);
mInflater = LayoutInflater.from(context);
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
final ApplicationInfo info = getItem(position);
if (convertView == null) {
convertView = mInflater.inflate(R.layout.application_boxed, parent, false);
}
// if (!info.filtered) {
// info.icon = Utilities.createIconThumbnail(info.icon, getContext());
// info.filtered = true;
// }
final TextView textView = (TextView) convertView;
if (DEBUG) {
Log.d(TAG, "icon bitmap = " + info.iconBitmap
+ " density = " + info.iconBitmap.getDensity());
}
info.iconBitmap.setDensity(Bitmap.DENSITY_NONE);
textView.setCompoundDrawablesWithIntrinsicBounds(null, new BitmapDrawable(info.iconBitmap), null, null);
textView.setText(info.title);
return convertView;
}
}
public AllApps2D(Context context, AttributeSet attrs) {
super(context, attrs);
setVisibility(View.GONE);
setSoundEffectsEnabled(false);
mAppsAdapter = new AppsAdapter(getContext(), mVisibleAppsList);
}
@Override
protected void onFinishInflate() {
try {
mGrid = (GridView)findViewWithTag("all_apps_2d_grid");
if (mGrid == null) throw new Resources.NotFoundException();
mGrid.setOnItemClickListener(this);
mGrid.setOnItemLongClickListener(this);
// The home button is optional; some layouts might not use it
ImageButton homeButton = (ImageButton) findViewWithTag("all_apps_2d_home");
if (homeButton != null) {
homeButton.setOnClickListener(
new View.OnClickListener() {
public void onClick(View v) {
mLauncher.closeAllApps(true);
}
});
}
} catch (Resources.NotFoundException e) {
Log.e(TAG, "Can't find necessary layout elements for AllApps2D");
}
setOnKeyListener(this);
}
public AllApps2D(Context context, AttributeSet attrs, int defStyle) {
this(context, attrs);
}
public void setLauncher(Launcher launcher) {
mLauncher = launcher;
}
public boolean onKey(View v, int keyCode, KeyEvent event) {
if (!isVisible()) return false;
switch (keyCode) {
case KeyEvent.KEYCODE_BACK:
mLauncher.closeAllApps(true);
break;
default:
return false;
}
return true;
}
public void onItemClick(AdapterView parent, View v, int position, long id) {
ApplicationInfo app = (ApplicationInfo) parent.getItemAtPosition(position);
mLauncher.startActivitySafely(app.intent, app);
}
public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
if (!view.isInTouchMode()) {
return false;
}
ApplicationInfo app = (ApplicationInfo) parent.getItemAtPosition(position);
app = new ApplicationInfo(app);
mDragController.startDrag(view, this, app, DragController.DRAG_ACTION_COPY);
mLauncher.closeAllApps(true);
return true;
}
protected void onFocusChanged(boolean gainFocus, int direction, android.graphics.Rect prev) {
if (gainFocus) {
mGrid.requestFocus();
}
}
@Override
public void setDragController(DragController dragger) {
mDragController = dragger;
}
@Override
public void onDragViewVisible() {
}
@Override
public void onDropCompleted(View target, boolean success) {
}
/**
* Zoom to the specifed level.
*
* @param zoom [0..1] 0 is hidden, 1 is open
*/
public void zoom(float zoom, boolean animate) {
// Log.d(TAG, "zooming " + ((zoom == 1.0) ? "open" : "closed"));
cancelLongPress();
mZoom = zoom;
if (isVisible()) {
getParent().bringChildToFront(this);
setVisibility(View.VISIBLE);
mGrid.setAdapter(mAppsAdapter);
if (animate) {
startAnimation(AnimationUtils.loadAnimation(getContext(), R.anim.all_apps_2d_fade_in));
} else {
onAnimationEnd();
}
} else {
if (animate) {
startAnimation(AnimationUtils.loadAnimation(getContext(), R.anim.all_apps_2d_fade_out));
} else {
onAnimationEnd();
}
}
}
protected void onAnimationEnd() {
if (!isVisible()) {
setVisibility(View.GONE);
mGrid.setAdapter(null);
mZoom = 0.0f;
} else {
mZoom = 1.0f;
}
mLauncher.zoomed(mZoom);
}
public boolean isVisible() {
return mZoom > 0.001f;
}
public boolean isAnimating() {
return (getAnimation() != null);
}
public void setApps(ArrayList<ApplicationInfo> list) {
mAllAppsList.clear();
addApps(list);
filterApps(mCurrentFilter);
}
public void addApps(ArrayList<ApplicationInfo> list) {
final int N = list.size();
for (int i=0; i<N; i++) {
final ApplicationInfo item = list.get(i);
int index = Collections.binarySearch(mAllAppsList, item,
LauncherModel.APP_NAME_COMPARATOR);
if (index < 0) {
index = -(index+1);
}
mAllAppsList.add(index, item);
}
filterApps(mCurrentFilter);
}
public void removeApps(ArrayList<ApplicationInfo> list) {
final int N = list.size();
for (int i=0; i<N; i++) {
final ApplicationInfo item = list.get(i);
int index = findAppByComponent(mAllAppsList, item);
if (index >= 0) {
mAllAppsList.remove(index);
} else {
Log.w(TAG, "couldn't find a match for item \"" + item + "\"");
// Try to recover. This should keep us from crashing for now.
}
}
filterApps(mCurrentFilter);
}
public void updateApps(ArrayList<ApplicationInfo> list) {
// Just remove and add, because they may need to be re-sorted.
removeApps(list);
addApps(list);
}
public void filterApps(AppType appType) {
mCurrentFilter = appType;
mAppsAdapter.setNotifyOnChange(false);
mVisibleAppsList.clear();
if (appType == AppType.ALL) {
mVisibleAppsList.addAll(mAllAppsList);
} else {
int searchFlags = 0;
if (appType == AppType.APP) {
searchFlags = ApplicationInfo.APP_FLAG;
} else if (appType == AppType.GAME) {
searchFlags = ApplicationInfo.GAME_FLAG;
} else if (appType == AppType.DOWNLOADED) {
searchFlags = ApplicationInfo.DOWNLOADED_FLAG;
}
for (ApplicationInfo info : mAllAppsList) {
if ((info.flags & searchFlags) != 0) {
mVisibleAppsList.add(info);
}
}
}
mAppsAdapter.notifyDataSetChanged();
}
private static int findAppByComponent(ArrayList<ApplicationInfo> list, ApplicationInfo item) {
ComponentName component = item.intent.getComponent();
final int N = list.size();
for (int i=0; i<N; i++) {
ApplicationInfo x = list.get(i);
if (x.intent.getComponent().equals(component)) {
return i;
}
}
return -1;
}
public void dumpState() {
ApplicationInfo.dumpApplicationInfoList(TAG, "mAllAppsList", mAllAppsList);
}
public void surrender() {
}
}