1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file 5 * except in compliance with the License. You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software distributed under the 10 * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 11 * KIND, either express or implied. See the License for the specific language governing 12 * permissions and limitations under the License. 13 */ 14 15 package com.android.systemui.statusbar.policy; 16 17 import android.graphics.Color; 18 import android.graphics.Rect; 19 import android.view.View; 20 import android.widget.ImageView; 21 22 import com.android.systemui.statusbar.phone.LightBarTransitionsController; 23 24 public interface DarkIconDispatcher { 25 setIconsDarkArea(Rect r)26 void setIconsDarkArea(Rect r); getTransitionsController()27 LightBarTransitionsController getTransitionsController(); 28 addDarkReceiver(DarkReceiver receiver)29 void addDarkReceiver(DarkReceiver receiver); addDarkReceiver(ImageView imageView)30 void addDarkReceiver(ImageView imageView); 31 32 // Must have been previously been added through one of the addDarkReceive methods above. removeDarkReceiver(DarkReceiver object)33 void removeDarkReceiver(DarkReceiver object); removeDarkReceiver(ImageView object)34 void removeDarkReceiver(ImageView object); 35 36 // Used to reapply darkness on an object, must have previously been added through 37 // addDarkReceiver. applyDark(ImageView object)38 void applyDark(ImageView object); 39 40 int DEFAULT_ICON_TINT = Color.WHITE; 41 Rect sTmpRect = new Rect(); 42 int[] sTmpInt2 = new int[2]; 43 44 /** 45 * @return the tint to apply to {@param view} depending on the desired tint {@param color} and 46 * the screen {@param tintArea} in which to apply that tint 47 */ getTint(Rect tintArea, View view, int color)48 static int getTint(Rect tintArea, View view, int color) { 49 if (isInArea(tintArea, view)) { 50 return color; 51 } else { 52 return DEFAULT_ICON_TINT; 53 } 54 } 55 56 /** 57 * @return the dark intensity to apply to {@param view} depending on the desired dark 58 * {@param intensity} and the screen {@param tintArea} in which to apply that intensity 59 */ getDarkIntensity(Rect tintArea, View view, float intensity)60 static float getDarkIntensity(Rect tintArea, View view, float intensity) { 61 if (isInArea(tintArea, view)) { 62 return intensity; 63 } else { 64 return 0f; 65 } 66 } 67 68 /** 69 * @return true if more than half of the {@param view} area are in {@param area}, false 70 * otherwise 71 */ isInArea(Rect area, View view)72 static boolean isInArea(Rect area, View view) { 73 if (area.isEmpty()) { 74 return true; 75 } 76 sTmpRect.set(area); 77 view.getLocationOnScreen(sTmpInt2); 78 int left = sTmpInt2[0]; 79 80 int intersectStart = Math.max(left, area.left); 81 int intersectEnd = Math.min(left + view.getWidth(), area.right); 82 int intersectAmount = Math.max(0, intersectEnd - intersectStart); 83 84 boolean coversFullStatusBar = area.top <= 0; 85 boolean majorityOfWidth = 2 * intersectAmount > view.getWidth(); 86 return majorityOfWidth && coversFullStatusBar; 87 } 88 89 interface DarkReceiver { onDarkChanged(Rect area, float darkIntensity, int tint)90 void onDarkChanged(Rect area, float darkIntensity, int tint); 91 } 92 } 93