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      1 /*
      2  * Copyright (C) 2008 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 
     18 package com.android.launcher2;
     19 
     20 import android.content.Context;
     21 import android.content.res.TypedArray;
     22 import android.util.AttributeSet;
     23 import android.view.MotionEvent;
     24 import android.view.View;
     25 import android.widget.ImageView;
     26 
     27 import com.android.launcher.R;
     28 
     29 public class HandleView extends ImageView {
     30     private static final int ORIENTATION_HORIZONTAL = 1;
     31 
     32     private Launcher mLauncher;
     33     private int mOrientation = ORIENTATION_HORIZONTAL;
     34 
     35     public HandleView(Context context) {
     36         super(context);
     37     }
     38 
     39     public HandleView(Context context, AttributeSet attrs) {
     40         this(context, attrs, 0);
     41     }
     42 
     43     public HandleView(Context context, AttributeSet attrs, int defStyle) {
     44         super(context, attrs, defStyle);
     45 
     46         TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.HandleView, defStyle, 0);
     47         mOrientation = a.getInt(R.styleable.HandleView_direction, ORIENTATION_HORIZONTAL);
     48         a.recycle();
     49 
     50         setContentDescription(context.getString(R.string.all_apps_button_label));
     51     }
     52 
     53     @Override
     54     public View focusSearch(int direction) {
     55         View newFocus = super.focusSearch(direction);
     56         if (newFocus == null && !mLauncher.isAllAppsVisible()) {
     57             final Workspace workspace = mLauncher.getWorkspace();
     58             workspace.dispatchUnhandledMove(null, direction);
     59             return (mOrientation == ORIENTATION_HORIZONTAL && direction == FOCUS_DOWN) ?
     60                     this : workspace;
     61         }
     62         return newFocus;
     63     }
     64 
     65     @Override
     66     public boolean onTouchEvent(MotionEvent ev) {
     67         if (ev.getAction() == MotionEvent.ACTION_DOWN && mLauncher.isAllAppsVisible()) {
     68             return false;
     69         }
     70         return super.onTouchEvent(ev);
     71     }
     72 
     73     void setLauncher(Launcher launcher) {
     74         mLauncher = launcher;
     75     }
     76 }
     77