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281 lines
9.9 KiB
281 lines
9.9 KiB
/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _UI_INPUT_WINDOW_H
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#define _UI_INPUT_WINDOW_H
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#include <android/os/TouchOcclusionMode.h>
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#include <binder/Parcel.h>
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#include <binder/Parcelable.h>
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#include <input/Flags.h>
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#include <input/Input.h>
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#include <input/InputTransport.h>
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#include <ui/Rect.h>
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#include <ui/Region.h>
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#include <ui/Transform.h>
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#include <utils/RefBase.h>
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#include <utils/Timers.h>
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#include "InputApplication.h"
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using android::os::TouchOcclusionMode;
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namespace android {
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/*
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* Describes the properties of a window that can receive input.
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*/
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struct InputWindowInfo : public Parcelable {
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InputWindowInfo() = default;
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// Window flags from WindowManager.LayoutParams
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enum class Flag : uint32_t {
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ALLOW_LOCK_WHILE_SCREEN_ON = 0x00000001,
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DIM_BEHIND = 0x00000002,
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BLUR_BEHIND = 0x00000004,
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NOT_FOCUSABLE = 0x00000008,
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NOT_TOUCHABLE = 0x00000010,
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NOT_TOUCH_MODAL = 0x00000020,
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TOUCHABLE_WHEN_WAKING = 0x00000040,
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KEEP_SCREEN_ON = 0x00000080,
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LAYOUT_IN_SCREEN = 0x00000100,
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LAYOUT_NO_LIMITS = 0x00000200,
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FULLSCREEN = 0x00000400,
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FORCE_NOT_FULLSCREEN = 0x00000800,
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DITHER = 0x00001000,
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SECURE = 0x00002000,
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SCALED = 0x00004000,
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IGNORE_CHEEK_PRESSES = 0x00008000,
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LAYOUT_INSET_DECOR = 0x00010000,
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ALT_FOCUSABLE_IM = 0x00020000,
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WATCH_OUTSIDE_TOUCH = 0x00040000,
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SHOW_WHEN_LOCKED = 0x00080000,
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SHOW_WALLPAPER = 0x00100000,
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TURN_SCREEN_ON = 0x00200000,
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DISMISS_KEYGUARD = 0x00400000,
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SPLIT_TOUCH = 0x00800000,
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HARDWARE_ACCELERATED = 0x01000000,
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LAYOUT_IN_OVERSCAN = 0x02000000,
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TRANSLUCENT_STATUS = 0x04000000,
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TRANSLUCENT_NAVIGATION = 0x08000000,
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LOCAL_FOCUS_MODE = 0x10000000,
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SLIPPERY = 0x20000000,
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LAYOUT_ATTACHED_IN_DECOR = 0x40000000,
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DRAWS_SYSTEM_BAR_BACKGROUNDS = 0x80000000,
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}; // Window types from WindowManager.LayoutParams
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enum class Type : int32_t {
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UNKNOWN = 0,
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FIRST_APPLICATION_WINDOW = 1,
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BASE_APPLICATION = 1,
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APPLICATION = 2,
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APPLICATION_STARTING = 3,
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LAST_APPLICATION_WINDOW = 99,
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FIRST_SUB_WINDOW = 1000,
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APPLICATION_PANEL = FIRST_SUB_WINDOW,
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APPLICATION_MEDIA = FIRST_SUB_WINDOW + 1,
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APPLICATION_SUB_PANEL = FIRST_SUB_WINDOW + 2,
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APPLICATION_ATTACHED_DIALOG = FIRST_SUB_WINDOW + 3,
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APPLICATION_MEDIA_OVERLAY = FIRST_SUB_WINDOW + 4,
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LAST_SUB_WINDOW = 1999,
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FIRST_SYSTEM_WINDOW = 2000,
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STATUS_BAR = FIRST_SYSTEM_WINDOW,
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SEARCH_BAR = FIRST_SYSTEM_WINDOW + 1,
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PHONE = FIRST_SYSTEM_WINDOW + 2,
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SYSTEM_ALERT = FIRST_SYSTEM_WINDOW + 3,
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KEYGUARD = FIRST_SYSTEM_WINDOW + 4,
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TOAST = FIRST_SYSTEM_WINDOW + 5,
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SYSTEM_OVERLAY = FIRST_SYSTEM_WINDOW + 6,
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PRIORITY_PHONE = FIRST_SYSTEM_WINDOW + 7,
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SYSTEM_DIALOG = FIRST_SYSTEM_WINDOW + 8,
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KEYGUARD_DIALOG = FIRST_SYSTEM_WINDOW + 9,
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SYSTEM_ERROR = FIRST_SYSTEM_WINDOW + 10,
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INPUT_METHOD = FIRST_SYSTEM_WINDOW + 11,
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INPUT_METHOD_DIALOG = FIRST_SYSTEM_WINDOW + 12,
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WALLPAPER = FIRST_SYSTEM_WINDOW + 13,
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STATUS_BAR_PANEL = FIRST_SYSTEM_WINDOW + 14,
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SECURE_SYSTEM_OVERLAY = FIRST_SYSTEM_WINDOW + 15,
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DRAG = FIRST_SYSTEM_WINDOW + 16,
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STATUS_BAR_SUB_PANEL = FIRST_SYSTEM_WINDOW + 17,
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POINTER = FIRST_SYSTEM_WINDOW + 18,
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NAVIGATION_BAR = FIRST_SYSTEM_WINDOW + 19,
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VOLUME_OVERLAY = FIRST_SYSTEM_WINDOW + 20,
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BOOT_PROGRESS = FIRST_SYSTEM_WINDOW + 21,
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INPUT_CONSUMER = FIRST_SYSTEM_WINDOW + 22,
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NAVIGATION_BAR_PANEL = FIRST_SYSTEM_WINDOW + 24,
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MAGNIFICATION_OVERLAY = FIRST_SYSTEM_WINDOW + 27,
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ACCESSIBILITY_OVERLAY = FIRST_SYSTEM_WINDOW + 32,
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DOCK_DIVIDER = FIRST_SYSTEM_WINDOW + 34,
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ACCESSIBILITY_MAGNIFICATION_OVERLAY = FIRST_SYSTEM_WINDOW + 39,
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NOTIFICATION_SHADE = FIRST_SYSTEM_WINDOW + 40,
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LAST_SYSTEM_WINDOW = 2999,
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};
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enum class Feature {
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DISABLE_TOUCH_PAD_GESTURES = 0x00000001,
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NO_INPUT_CHANNEL = 0x00000002,
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DISABLE_USER_ACTIVITY = 0x00000004,
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DROP_INPUT = 0x00000008,
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};
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/* These values are filled in by the WM and passed through SurfaceFlinger
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* unless specified otherwise.
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*/
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// This value should NOT be used to uniquely identify the window. There may be different
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// input windows that have the same token.
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sp<IBinder> token;
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// This uniquely identifies the input window.
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int32_t id = -1;
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std::string name;
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Flags<Flag> flags;
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Type type = Type::UNKNOWN;
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std::chrono::nanoseconds dispatchingTimeout = std::chrono::seconds(5);
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/* These values are filled in by SurfaceFlinger. */
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int32_t frameLeft = -1;
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int32_t frameTop = -1;
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int32_t frameRight = -1;
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int32_t frameBottom = -1;
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/*
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* SurfaceFlinger consumes this value to shrink the computed frame. This is
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* different from shrinking the touchable region in that it DOES shift the coordinate
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* space where-as the touchable region does not and is more like "cropping". This
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* is used for window shadows.
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*/
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int32_t surfaceInset = 0;
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// A global scaling factor for all windows. Unlike windowScaleX/Y this results
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// in scaling of the TOUCH_MAJOR/TOUCH_MINOR axis.
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float globalScaleFactor = 1.0f;
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// The opacity of this window, from 0.0 to 1.0 (inclusive).
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// An alpha of 1.0 means fully opaque and 0.0 means fully transparent.
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float alpha;
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// Transform applied to individual windows.
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ui::Transform transform;
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// Display size in its natural rotation. Used to rotate raw coordinates for compatibility.
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int32_t displayWidth = AMOTION_EVENT_INVALID_DISPLAY_SIZE;
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int32_t displayHeight = AMOTION_EVENT_INVALID_DISPLAY_SIZE;
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/*
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* This is filled in by the WM relative to the frame and then translated
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* to absolute coordinates by SurfaceFlinger once the frame is computed.
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*/
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Region touchableRegion;
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bool visible = false;
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bool focusable = false;
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bool hasWallpaper = false;
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bool paused = false;
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/* This flag is set when the window is of a trusted type that is allowed to silently
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* overlay other windows for the purpose of implementing the secure views feature.
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* Trusted overlays, such as IME windows, can partly obscure other windows without causing
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* motion events to be delivered to them with AMOTION_EVENT_FLAG_WINDOW_IS_OBSCURED.
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*/
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bool trustedOverlay = false;
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TouchOcclusionMode touchOcclusionMode = TouchOcclusionMode::BLOCK_UNTRUSTED;
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int32_t ownerPid = -1;
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int32_t ownerUid = -1;
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std::string packageName;
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Flags<Feature> inputFeatures;
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int32_t displayId = ADISPLAY_ID_NONE;
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int32_t portalToDisplayId = ADISPLAY_ID_NONE;
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InputApplicationInfo applicationInfo;
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bool replaceTouchableRegionWithCrop = false;
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wp<IBinder> touchableRegionCropHandle;
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void addTouchableRegion(const Rect& region);
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bool touchableRegionContainsPoint(int32_t x, int32_t y) const;
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bool frameContainsPoint(int32_t x, int32_t y) const;
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bool supportsSplitTouch() const;
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bool overlaps(const InputWindowInfo* other) const;
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bool operator==(const InputWindowInfo& inputChannel) const;
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status_t writeToParcel(android::Parcel* parcel) const override;
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status_t readFromParcel(const android::Parcel* parcel) override;
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};
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/*
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* Handle for a window that can receive input.
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*
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* Used by the native input dispatcher to indirectly refer to the window manager objects
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* that describe a window.
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*/
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class InputWindowHandle : public RefBase {
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public:
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explicit InputWindowHandle();
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InputWindowHandle(const InputWindowHandle& other);
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InputWindowHandle(const InputWindowInfo& other);
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inline const InputWindowInfo* getInfo() const { return &mInfo; }
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sp<IBinder> getToken() const;
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int32_t getId() const { return mInfo.id; }
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sp<IBinder> getApplicationToken() { return mInfo.applicationInfo.token; }
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inline std::string getName() const { return !mInfo.name.empty() ? mInfo.name : "<invalid>"; }
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inline std::chrono::nanoseconds getDispatchingTimeout(
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std::chrono::nanoseconds defaultValue) const {
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return mInfo.token ? std::chrono::nanoseconds(mInfo.dispatchingTimeout) : defaultValue;
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}
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/**
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* Requests that the state of this object be updated to reflect
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* the most current available information about the application.
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* As this class is created as RefBase object, no pure virtual function is allowed.
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*
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* This method should only be called from within the input dispatcher's
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* critical section.
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*
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* Returns true on success, or false if the handle is no longer valid.
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*/
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virtual bool updateInfo() { return false; }
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/**
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* Updates from another input window handle.
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*/
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void updateFrom(const sp<InputWindowHandle> handle);
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/**
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* Releases the channel used by the associated information when it is
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* no longer needed.
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*/
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void releaseChannel();
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// Not override since this class is not derrived from Parcelable.
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status_t readFromParcel(const android::Parcel* parcel);
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status_t writeToParcel(android::Parcel* parcel) const;
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protected:
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virtual ~InputWindowHandle();
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InputWindowInfo mInfo;
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};
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} // namespace android
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#endif // _UI_INPUT_WINDOW_H
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