Ben Lin | ba1cb3d | 2016-06-20 17:08:22 -0700 | [diff] [blame] | 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.documentsui; |
| 18 | |
| 19 | import android.content.Context; |
| 20 | import android.util.AttributeSet; |
| 21 | import android.view.View.OnDragListener; |
| 22 | import android.widget.TextView; |
| 23 | |
| 24 | /** |
| 25 | * An {@link TextView} that uses drawable states to distinct between normal and highlighted states. |
| 26 | */ |
| 27 | |
| 28 | public final class DragOverTextView extends TextView { |
| 29 | private static final int[] STATE_HIGHLIGHTED = {R.attr.state_highlighted}; |
| 30 | |
| 31 | private boolean mHighlighted = false; |
| 32 | |
| 33 | public DragOverTextView(Context context, AttributeSet attrs) { |
| 34 | super(context, attrs); |
| 35 | } |
| 36 | |
| 37 | @Override |
| 38 | protected int[] onCreateDrawableState(int extraSpace) { |
| 39 | final int[] drawableState = super.onCreateDrawableState(extraSpace + 1); |
| 40 | |
| 41 | if (mHighlighted) { |
| 42 | mergeDrawableStates(drawableState, STATE_HIGHLIGHTED); |
| 43 | } |
| 44 | |
| 45 | return drawableState; |
| 46 | } |
| 47 | |
| 48 | public void setHighlight(boolean highlight) { |
| 49 | mHighlighted = highlight; |
| 50 | refreshDrawableState(); |
| 51 | } |
| 52 | } |