1/* 2 * Copyright (C) 2014 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 17package com.android.systemui.statusbar; 18 19import android.content.Context; 20import android.graphics.Canvas; 21import android.graphics.Rect; 22import android.graphics.drawable.AnimatedVectorDrawable; 23import android.graphics.drawable.Drawable; 24import android.os.SystemClock; 25import android.util.AttributeSet; 26import android.view.Choreographer; 27import android.view.View; 28import android.view.ViewGroup; 29import android.view.ViewRootImpl; 30import android.widget.Button; 31import com.android.systemui.R; 32import com.android.systemui.statusbar.stack.NotificationStackScrollLayout; 33 34public class DismissViewButton extends Button { 35 private AnimatedVectorDrawable mAnimatedDismissDrawable; 36 private final Drawable mStaticDismissDrawable; 37 private Drawable mActiveDrawable; 38 39 public DismissViewButton(Context context) { 40 this(context, null); 41 } 42 43 public DismissViewButton(Context context, AttributeSet attrs) { 44 this(context, attrs, 0); 45 } 46 47 public DismissViewButton(Context context, AttributeSet attrs, int defStyleAttr) { 48 this(context, attrs, defStyleAttr, 0); 49 } 50 51 public DismissViewButton(Context context, AttributeSet attrs, int defStyleAttr, 52 int defStyleRes) { 53 super(context, attrs, defStyleAttr, defStyleRes); 54 mAnimatedDismissDrawable = (AnimatedVectorDrawable) getContext().getResources().getDrawable( 55 R.drawable.dismiss_all_shape_animation).mutate(); 56 mAnimatedDismissDrawable.setCallback(this); 57 mAnimatedDismissDrawable.setBounds(0, 58 0, 59 mAnimatedDismissDrawable.getIntrinsicWidth(), 60 mAnimatedDismissDrawable.getIntrinsicHeight()); 61 mStaticDismissDrawable = getContext().getResources().getDrawable( 62 R.drawable.dismiss_all_shape); 63 mStaticDismissDrawable.setBounds(0, 64 0, 65 mStaticDismissDrawable.getIntrinsicWidth(), 66 mStaticDismissDrawable.getIntrinsicHeight()); 67 mStaticDismissDrawable.setCallback(this); 68 mActiveDrawable = mStaticDismissDrawable; 69 } 70 71 @Override 72 protected void onDraw(Canvas canvas) { 73 super.onDraw(canvas); 74 canvas.save(); 75 int drawableHeight = mActiveDrawable.getBounds().height(); 76 boolean isRtl = (getLayoutDirection() == View.LAYOUT_DIRECTION_RTL); 77 int dx = isRtl ? getWidth() / 2 + drawableHeight / 2 : getWidth() / 2 - drawableHeight / 2; 78 canvas.translate(dx, getHeight() / 2.0f + drawableHeight / 79 2.0f); 80 canvas.scale(isRtl ? -1.0f : 1.0f, -1.0f); 81 mActiveDrawable.draw(canvas); 82 canvas.restore(); 83 } 84 85 @Override 86 public boolean performClick() { 87 if (!mAnimatedDismissDrawable.isRunning()) { 88 mActiveDrawable = mAnimatedDismissDrawable; 89 mAnimatedDismissDrawable.start(); 90 } 91 return super.performClick(); 92 } 93 94 @Override 95 protected boolean verifyDrawable(Drawable who) { 96 return super.verifyDrawable(who) 97 || who == mAnimatedDismissDrawable 98 || who == mStaticDismissDrawable; 99 } 100 101 @Override 102 public boolean hasOverlappingRendering() { 103 return false; 104 } 105 106 /** 107 * This method returns the drawing rect for the view which is different from the regular 108 * drawing rect, since we layout all children in the {@link NotificationStackScrollLayout} at 109 * position 0 and usually the translation is neglected. The standard implementation doesn't 110 * account for translation. 111 * 112 * @param outRect The (scrolled) drawing bounds of the view. 113 */ 114 @Override 115 public void getDrawingRect(Rect outRect) { 116 super.getDrawingRect(outRect); 117 float translationX = ((ViewGroup) mParent).getTranslationX(); 118 float translationY = ((ViewGroup) mParent).getTranslationY(); 119 outRect.left += translationX; 120 outRect.right += translationX; 121 outRect.top += translationY; 122 outRect.bottom += translationY; 123 } 124 125 public void showButton() { 126 mActiveDrawable = mStaticDismissDrawable; 127 invalidate(); 128 } 129 130 /** 131 * @return Whether the button is currently static and not being animated. 132 */ 133 public boolean isButtonStatic() { 134 return mActiveDrawable == mStaticDismissDrawable; 135 } 136} 137