| /* |
| * Copyright (C) 2018 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.systemui.plugins; |
| |
| import android.graphics.Color; |
| import android.graphics.Rect; |
| import android.view.View; |
| import android.widget.ImageView; |
| |
| import com.android.systemui.plugins.DarkIconDispatcher.DarkReceiver; |
| import com.android.systemui.plugins.annotations.DependsOn; |
| import com.android.systemui.plugins.annotations.ProvidesInterface; |
| |
| /** |
| * Dispatches events to {@link DarkReceiver}s about changes in darkness, tint area and dark |
| * intensity. Accessible through {@link PluginDependency} |
| */ |
| @ProvidesInterface(version = DarkIconDispatcher.VERSION) |
| @DependsOn(target = DarkReceiver.class) |
| public interface DarkIconDispatcher { |
| int VERSION = 1; |
| |
| /** |
| * Sets the dark area so {@link #applyDark} only affects the icons in the specified area. |
| * |
| * @param r the area in which icons should change its tint, in logical screen |
| * coordinates |
| */ |
| void setIconsDarkArea(Rect r); |
| |
| /** |
| * Adds a receiver to receive callbacks onDarkChanged |
| */ |
| void addDarkReceiver(DarkReceiver receiver); |
| |
| /** |
| * Adds a receiver to receive callbacks onDarkChanged |
| */ |
| void addDarkReceiver(ImageView imageView); |
| |
| /** |
| * Must have been previously been added through one of the addDarkReceive methods above. |
| */ |
| void removeDarkReceiver(DarkReceiver object); |
| |
| /** |
| * Must have been previously been added through one of the addDarkReceive methods above. |
| */ |
| void removeDarkReceiver(ImageView object); |
| |
| /** |
| * Used to reapply darkness on an object, must have previously been added through |
| * addDarkReceiver. |
| */ |
| void applyDark(DarkReceiver object); |
| |
| int DEFAULT_ICON_TINT = Color.WHITE; |
| Rect sTmpRect = new Rect(); |
| int[] sTmpInt2 = new int[2]; |
| |
| /** |
| * @return the tint to apply to view depending on the desired tint color and |
| * the screen tintArea in which to apply that tint |
| */ |
| static int getTint(Rect tintArea, View view, int color) { |
| if (isInArea(tintArea, view)) { |
| return color; |
| } else { |
| return DEFAULT_ICON_TINT; |
| } |
| } |
| |
| /** |
| * @return the dark intensity to apply to view depending on the desired dark |
| * intensity and the screen tintArea in which to apply that intensity |
| */ |
| static float getDarkIntensity(Rect tintArea, View view, float intensity) { |
| if (isInArea(tintArea, view)) { |
| return intensity; |
| } else { |
| return 0f; |
| } |
| } |
| |
| /** |
| * @return true if more than half of the view area are in area, false |
| * otherwise |
| */ |
| static boolean isInArea(Rect area, View view) { |
| if (area.isEmpty()) { |
| return true; |
| } |
| sTmpRect.set(area); |
| view.getLocationOnScreen(sTmpInt2); |
| int left = sTmpInt2[0]; |
| |
| int intersectStart = Math.max(left, area.left); |
| int intersectEnd = Math.min(left + view.getWidth(), area.right); |
| int intersectAmount = Math.max(0, intersectEnd - intersectStart); |
| |
| boolean coversFullStatusBar = area.top <= 0; |
| boolean majorityOfWidth = 2 * intersectAmount > view.getWidth(); |
| return majorityOfWidth && coversFullStatusBar; |
| } |
| |
| /** |
| * Receives a callback on darkness changes |
| */ |
| @ProvidesInterface(version = DarkReceiver.VERSION) |
| interface DarkReceiver { |
| int VERSION = 1; |
| void onDarkChanged(Rect area, float darkIntensity, int tint); |
| } |
| } |