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      1 /*
      2  * Copyright (C) 2016 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 package com.android.dialer.app.list;
     18 
     19 import android.content.Context;
     20 import android.content.res.Resources;
     21 import android.graphics.drawable.Drawable;
     22 import android.util.AttributeSet;
     23 import android.view.DragEvent;
     24 import android.view.accessibility.AccessibilityEvent;
     25 import android.widget.FrameLayout;
     26 import android.widget.ImageView;
     27 import android.widget.TextView;
     28 import com.android.dialer.app.R;
     29 
     30 public class RemoveView extends FrameLayout {
     31 
     32   DragDropController dragDropController;
     33   TextView removeText;
     34   ImageView removeIcon;
     35   int unhighlightedColor;
     36   int highlightedColor;
     37   Drawable removeDrawable;
     38 
     39   public RemoveView(Context context) {
     40     super(context);
     41   }
     42 
     43   public RemoveView(Context context, AttributeSet attrs) {
     44     this(context, attrs, 0);
     45   }
     46 
     47   public RemoveView(Context context, AttributeSet attrs, int defStyle) {
     48     super(context, attrs, defStyle);
     49   }
     50 
     51   @Override
     52   protected void onFinishInflate() {
     53     removeText = (TextView) findViewById(R.id.remove_view_text);
     54     removeIcon = (ImageView) findViewById(R.id.remove_view_icon);
     55     final Resources r = getResources();
     56     unhighlightedColor = r.getColor(R.color.remove_text_color);
     57     highlightedColor = r.getColor(R.color.remove_highlighted_text_color);
     58     removeDrawable = r.getDrawable(R.drawable.ic_remove);
     59   }
     60 
     61   public void setDragDropController(DragDropController controller) {
     62     dragDropController = controller;
     63   }
     64 
     65   @Override
     66   public boolean onDragEvent(DragEvent event) {
     67     final int action = event.getAction();
     68     switch (action) {
     69       case DragEvent.ACTION_DRAG_ENTERED:
     70         // TODO: This is temporary solution and should be removed once accessibility for
     71         // drag and drop is supported by framework(a bug).
     72         sendAccessibilityEvent(AccessibilityEvent.TYPE_ANNOUNCEMENT);
     73         setAppearanceHighlighted();
     74         break;
     75       case DragEvent.ACTION_DRAG_EXITED:
     76         setAppearanceNormal();
     77         break;
     78       case DragEvent.ACTION_DRAG_LOCATION:
     79         if (dragDropController != null) {
     80           dragDropController.handleDragHovered(this, (int) event.getX(), (int) event.getY());
     81         }
     82         break;
     83       case DragEvent.ACTION_DROP:
     84         sendAccessibilityEvent(AccessibilityEvent.TYPE_ANNOUNCEMENT);
     85         if (dragDropController != null) {
     86           dragDropController.handleDragFinished((int) event.getX(), (int) event.getY(), true);
     87         }
     88         setAppearanceNormal();
     89         break;
     90     }
     91     return true;
     92   }
     93 
     94   private void setAppearanceNormal() {
     95     removeText.setTextColor(unhighlightedColor);
     96     removeIcon.setColorFilter(unhighlightedColor);
     97     invalidate();
     98   }
     99 
    100   private void setAppearanceHighlighted() {
    101     removeText.setTextColor(highlightedColor);
    102     removeIcon.setColorFilter(highlightedColor);
    103     invalidate();
    104   }
    105 }
    106