Jeff Brown | 4ccb823 | 2014-01-16 22:16:42 -0800 | [diff] [blame] | 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 | |
| 17 | package android.view; |
| 18 | |
Svetoslav | 8e3feb1 | 2014-02-24 13:46:47 -0800 | [diff] [blame^] | 19 | import android.graphics.Rect; |
| 20 | import android.graphics.Region; |
Jeff Brown | 4ccb823 | 2014-01-16 22:16:42 -0800 | [diff] [blame] | 21 | import android.hardware.display.DisplayManagerInternal; |
Svetoslav | 8e3feb1 | 2014-02-24 13:46:47 -0800 | [diff] [blame^] | 22 | import android.os.IBinder; |
| 23 | |
| 24 | import java.util.List; |
Jeff Brown | 4ccb823 | 2014-01-16 22:16:42 -0800 | [diff] [blame] | 25 | |
| 26 | /** |
| 27 | * Window manager local system service interface. |
| 28 | * |
| 29 | * @hide Only for use within the system server. |
| 30 | */ |
| 31 | public abstract class WindowManagerInternal { |
Svetoslav | 8e3feb1 | 2014-02-24 13:46:47 -0800 | [diff] [blame^] | 32 | |
| 33 | /** |
| 34 | * Interface to receive a callback when the windows reported for |
| 35 | * accessibility changed. |
| 36 | */ |
| 37 | public interface WindowsForAccessibilityCallback { |
| 38 | |
| 39 | /** |
| 40 | * Called when the windows for accessibility changed. |
| 41 | * |
| 42 | * @param windows The windows for accessibility. |
| 43 | */ |
| 44 | public void onWindowsForAccessibilityChanged(List<WindowInfo> windows); |
| 45 | } |
| 46 | |
| 47 | /** |
| 48 | * Callbacks for contextual changes that affect the screen magnification |
| 49 | * feature. |
| 50 | */ |
| 51 | public interface MagnificationCallbacks { |
| 52 | |
| 53 | /** |
| 54 | * Called when the bounds of the screen content that is magnified changed. |
| 55 | * Note that not the entire screen is magnified. |
| 56 | * |
| 57 | * @param bounds The bounds. |
| 58 | */ |
| 59 | public void onMagnifedBoundsChanged(Region bounds); |
| 60 | |
| 61 | /** |
| 62 | * Called when an application requests a rectangle on the screen to allow |
| 63 | * the client to apply the appropriate pan and scale. |
| 64 | * |
| 65 | * @param left The rectangle left. |
| 66 | * @param top The rectangle top. |
| 67 | * @param right The rectangle right. |
| 68 | * @param bottom The rectangle bottom. |
| 69 | */ |
| 70 | public void onRectangleOnScreenRequested(int left, int top, int right, int bottom); |
| 71 | |
| 72 | /** |
| 73 | * Notifies that the rotation changed. |
| 74 | * |
| 75 | * @param rotation The current rotation. |
| 76 | */ |
| 77 | public void onRotationChanged(int rotation); |
| 78 | |
| 79 | /** |
| 80 | * Notifies that the context of the user changed. For example, an application |
| 81 | * was started. |
| 82 | */ |
| 83 | public void onUserContextChanged(); |
| 84 | } |
| 85 | |
Jeff Brown | 4ccb823 | 2014-01-16 22:16:42 -0800 | [diff] [blame] | 86 | /** |
| 87 | * Request that the window manager call |
| 88 | * {@link DisplayManagerInternal#performTraversalInTransactionFromWindowManager} |
| 89 | * within a surface transaction at a later time. |
| 90 | */ |
| 91 | public abstract void requestTraversalFromDisplayManager(); |
Svetoslav | 8e3feb1 | 2014-02-24 13:46:47 -0800 | [diff] [blame^] | 92 | |
| 93 | /** |
| 94 | * Set by the accessibility layer to observe changes in the magnified region, |
| 95 | * rotation, and other window transformations related to display magnification |
| 96 | * as the window manager is responsible for doing the actual magnification |
| 97 | * and has access to the raw window data while the accessibility layer serves |
| 98 | * as a controller. |
| 99 | * |
| 100 | * @param callbacks The callbacks to invoke. |
| 101 | */ |
| 102 | public abstract void setMagnificationCallbacks(MagnificationCallbacks callbacks); |
| 103 | |
| 104 | /** |
| 105 | * Set by the accessibility layer to specify the magnification and panning to |
| 106 | * be applied to all windows that should be magnified. |
| 107 | * |
| 108 | * @param callbacks The callbacks to invoke. |
| 109 | * |
| 110 | * @see #setMagnificationCallbacks(MagnificationCallbacks) |
| 111 | */ |
| 112 | public abstract void setMagnificationSpec(MagnificationSpec spec); |
| 113 | |
| 114 | /** |
| 115 | * Gets the magnification and translation applied to a window given its token. |
| 116 | * Not all windows are magnified and the window manager policy determines which |
| 117 | * windows are magnified. The returned result also takes into account the compat |
| 118 | * scale if necessary. |
| 119 | * |
| 120 | * @param windowToken The window's token. |
| 121 | * |
| 122 | * @return The magnification spec for the window. |
| 123 | * |
| 124 | * @see #setMagnificationCallbacks(MagnificationCallbacks) |
| 125 | */ |
| 126 | public abstract MagnificationSpec getCompatibleMagnificationSpecForWindow( |
| 127 | IBinder windowToken); |
| 128 | |
| 129 | /** |
| 130 | * Sets a callback for observing which windows are touchable for the purposes |
| 131 | * of accessibility. |
| 132 | * |
| 133 | * @param callback The callback. |
| 134 | */ |
| 135 | public abstract void setWindowsForAccessibilityCallback( |
| 136 | WindowsForAccessibilityCallback callback); |
| 137 | |
| 138 | /** |
| 139 | * Sets a filter for manipulating the input event stream. |
| 140 | * |
| 141 | * @param filter The filter implementation. |
| 142 | */ |
| 143 | public abstract void setInputFilter(IInputFilter filter); |
| 144 | |
| 145 | /** |
| 146 | * Gets the token of the window that has input focus. |
| 147 | * |
| 148 | * @return The token. |
| 149 | */ |
| 150 | public abstract IBinder getFocusedWindowToken(); |
| 151 | |
| 152 | /** |
| 153 | * @return Whether the keyguard is engaged. |
| 154 | */ |
| 155 | public abstract boolean isKeyguardLocked(); |
| 156 | |
| 157 | /** |
| 158 | * Gets the frame of a window given its token. |
| 159 | * |
| 160 | * @param token The token. |
| 161 | * @param outBounds The frame to populate. |
| 162 | */ |
| 163 | public abstract void getWindowFrame(IBinder token, Rect outBounds); |
| 164 | } |