src/com/android/launcher2/AllApps2D.java - platform/packages/apps/Launcher2 - Git at Google

 /*
  * 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.ComponentName;
 import android.content.Context;
 import android.content.res.Resources;
 import android.graphics.drawable.BitmapDrawable;
 import android.graphics.Bitmap;
 import android.graphics.Color;
 import android.util.AttributeSet;
 import android.util.Log;
 import android.view.KeyEvent;
 import android.view.ViewGroup;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.animation.AnimationUtils;
 import android.view.ViewConfiguration;
 import android.widget.AdapterView;
 import android.widget.ImageButton;
 import android.widget.TextView;
 import android.widget.ArrayAdapter;
 import android.widget.GridView;
 import android.widget.RelativeLayout;

 import java.util.ArrayList;
 import java.util.Collections;

 import com.android.launcher.R;

 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;

     private ArrayList<ApplicationInfo> mAllAppsList = new ArrayList<ApplicationInfo>();

     // 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(), mAllAppsList);
         mAppsAdapter.setNotifyOnChange(false);
     }

     @Override
     protected void onFinishInflate() {
         setBackgroundColor(Color.BLACK);

         try {
             mGrid = (GridView)findViewWithTag("all_apps_2d_grid");
             if (mGrid == null) throw new Resources.NotFoundException();
             mGrid.setOnItemClickListener(this);
             mGrid.setOnItemLongClickListener(this);
             mGrid.setBackgroundColor(Color.BLACK);
             mGrid.setCacheColorHint(Color.BLACK);

             ImageButton homeButton = (ImageButton) findViewWithTag("all_apps_2d_home");
             if (homeButton == null) throw new Resources.NotFoundException();
             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();
         }
     }

     public void setDragController(DragController dragger) {
         mDragController = dragger;
     }

     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;
     }

     @Override
     public boolean isOpaque() {
         return mZoom > 0.999f;
     }

     public void setApps(ArrayList<ApplicationInfo> list) {
         mAllAppsList.clear();
         addApps(list);
     }

     public void addApps(ArrayList<ApplicationInfo> list) {
 //        Log.d(TAG, "addApps: " + list.size() + " apps: " + list.toString());

         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);
         }
         mAppsAdapter.notifyDataSetChanged();
     }

     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.
             }
         }
         mAppsAdapter.notifyDataSetChanged();
     }

     public void updateApps(ArrayList<ApplicationInfo> list) {
         // Just remove and add, because they may need to be re-sorted.
         removeApps(list);
         addApps(list);
     }

     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() {
     }
 }
	/*
	* 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.ComponentName;
	import android.content.Context;
	import android.content.res.Resources;
	import android.graphics.drawable.BitmapDrawable;
	import android.graphics.Bitmap;
	import android.graphics.Color;
	import android.util.AttributeSet;
	import android.util.Log;
	import android.view.KeyEvent;
	import android.view.ViewGroup;
	import android.view.LayoutInflater;
	import android.view.View;
	import android.view.animation.AnimationUtils;
	import android.view.ViewConfiguration;
	import android.widget.AdapterView;
	import android.widget.ImageButton;
	import android.widget.TextView;
	import android.widget.ArrayAdapter;
	import android.widget.GridView;
	import android.widget.RelativeLayout;

	import java.util.ArrayList;
	import java.util.Collections;

	import com.android.launcher.R;

	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;

	private ArrayList<ApplicationInfo> mAllAppsList = new ArrayList<ApplicationInfo>();

	// 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(), mAllAppsList);
	mAppsAdapter.setNotifyOnChange(false);
	}

	@Override
	protected void onFinishInflate() {
	setBackgroundColor(Color.BLACK);

	try {
	mGrid = (GridView)findViewWithTag("all_apps_2d_grid");
	if (mGrid == null) throw new Resources.NotFoundException();
	mGrid.setOnItemClickListener(this);
	mGrid.setOnItemLongClickListener(this);
	mGrid.setBackgroundColor(Color.BLACK);
	mGrid.setCacheColorHint(Color.BLACK);

	ImageButton homeButton = (ImageButton) findViewWithTag("all_apps_2d_home");
	if (homeButton == null) throw new Resources.NotFoundException();
	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();
	}
	}

	public void setDragController(DragController dragger) {
	mDragController = dragger;
	}

	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;
	}

	@Override
	public boolean isOpaque() {
	return mZoom > 0.999f;
	}

	public void setApps(ArrayList<ApplicationInfo> list) {
	mAllAppsList.clear();
	addApps(list);
	}

	public void addApps(ArrayList<ApplicationInfo> list) {
	// Log.d(TAG, "addApps: " + list.size() + " apps: " + list.toString());

	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);
	}
	mAppsAdapter.notifyDataSetChanged();
	}

	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.
	}
	}
	mAppsAdapter.notifyDataSetChanged();
	}

	public void updateApps(ArrayList<ApplicationInfo> list) {
	// Just remove and add, because they may need to be re-sorted.
	removeApps(list);
	addApps(list);
	}

	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() {
	}
	}