51eb29fa9a
This fixes a bug where a View with filterTouchesWhenObscured will have all touches filtered when in magnification accessibility mode. This is due to magnification being a separate Window over top of the running Activity. The method onFilterTouchEventForSecurity in View will then always return false when filterTouchesWhenObscured is enabled on the View. By adding the magnification Window to the list of Trusted Overlays we can ensure that touches will work properly with this property enabled. This corresponds to AOSP change I07706588a625682d05da5cb19f401139eb08a54c Change-Id: Iba095433a1f9045349d1b47a58a33b850ed31c97
211 lines
7.1 KiB
C++
211 lines
7.1 KiB
C++
/*
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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 <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 <utils/RefBase.h>
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#include <utils/Timers.h>
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#include <utils/String8.h>
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#include "InputApplication.h"
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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 {
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// Window flags from WindowManager.LayoutParams
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enum {
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FLAG_ALLOW_LOCK_WHILE_SCREEN_ON = 0x00000001,
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FLAG_DIM_BEHIND = 0x00000002,
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FLAG_BLUR_BEHIND = 0x00000004,
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FLAG_NOT_FOCUSABLE = 0x00000008,
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FLAG_NOT_TOUCHABLE = 0x00000010,
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FLAG_NOT_TOUCH_MODAL = 0x00000020,
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FLAG_TOUCHABLE_WHEN_WAKING = 0x00000040,
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FLAG_KEEP_SCREEN_ON = 0x00000080,
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FLAG_LAYOUT_IN_SCREEN = 0x00000100,
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FLAG_LAYOUT_NO_LIMITS = 0x00000200,
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FLAG_FULLSCREEN = 0x00000400,
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FLAG_FORCE_NOT_FULLSCREEN = 0x00000800,
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FLAG_DITHER = 0x00001000,
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FLAG_SECURE = 0x00002000,
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FLAG_SCALED = 0x00004000,
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FLAG_IGNORE_CHEEK_PRESSES = 0x00008000,
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FLAG_LAYOUT_INSET_DECOR = 0x00010000,
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FLAG_ALT_FOCUSABLE_IM = 0x00020000,
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FLAG_WATCH_OUTSIDE_TOUCH = 0x00040000,
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FLAG_SHOW_WHEN_LOCKED = 0x00080000,
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FLAG_SHOW_WALLPAPER = 0x00100000,
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FLAG_TURN_SCREEN_ON = 0x00200000,
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FLAG_DISMISS_KEYGUARD = 0x00400000,
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FLAG_SPLIT_TOUCH = 0x00800000,
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FLAG_SLIPPERY = 0x20000000,
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FLAG_NEEDS_MENU_KEY = 0x40000000,
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};
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// Private Window flags from WindowManager.LayoutParams
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enum {
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PRIVATE_FLAG_SYSTEM_ERROR = 0x00000100,
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};
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// Window types from WindowManager.LayoutParams
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enum {
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FIRST_APPLICATION_WINDOW = 1,
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TYPE_BASE_APPLICATION = 1,
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TYPE_APPLICATION = 2,
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TYPE_APPLICATION_STARTING = 3,
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LAST_APPLICATION_WINDOW = 99,
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FIRST_SUB_WINDOW = 1000,
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TYPE_APPLICATION_PANEL = FIRST_SUB_WINDOW,
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TYPE_APPLICATION_MEDIA = FIRST_SUB_WINDOW+1,
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TYPE_APPLICATION_SUB_PANEL = FIRST_SUB_WINDOW+2,
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TYPE_APPLICATION_ATTACHED_DIALOG = FIRST_SUB_WINDOW+3,
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TYPE_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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TYPE_STATUS_BAR = FIRST_SYSTEM_WINDOW,
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TYPE_SEARCH_BAR = FIRST_SYSTEM_WINDOW+1,
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TYPE_PHONE = FIRST_SYSTEM_WINDOW+2,
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TYPE_SYSTEM_ALERT = FIRST_SYSTEM_WINDOW+3,
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TYPE_KEYGUARD = FIRST_SYSTEM_WINDOW+4,
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TYPE_TOAST = FIRST_SYSTEM_WINDOW+5,
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TYPE_SYSTEM_OVERLAY = FIRST_SYSTEM_WINDOW+6,
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TYPE_PRIORITY_PHONE = FIRST_SYSTEM_WINDOW+7,
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TYPE_SYSTEM_DIALOG = FIRST_SYSTEM_WINDOW+8,
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TYPE_KEYGUARD_DIALOG = FIRST_SYSTEM_WINDOW+9,
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TYPE_SYSTEM_ERROR = FIRST_SYSTEM_WINDOW+10,
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TYPE_INPUT_METHOD = FIRST_SYSTEM_WINDOW+11,
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TYPE_INPUT_METHOD_DIALOG= FIRST_SYSTEM_WINDOW+12,
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TYPE_WALLPAPER = FIRST_SYSTEM_WINDOW+13,
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TYPE_STATUS_BAR_PANEL = FIRST_SYSTEM_WINDOW+14,
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TYPE_SECURE_SYSTEM_OVERLAY = FIRST_SYSTEM_WINDOW+15,
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TYPE_DRAG = FIRST_SYSTEM_WINDOW+16,
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TYPE_STATUS_BAR_SUB_PANEL = FIRST_SYSTEM_WINDOW+17,
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TYPE_POINTER = FIRST_SYSTEM_WINDOW+18,
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TYPE_NAVIGATION_BAR = FIRST_SYSTEM_WINDOW+19,
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TYPE_VOLUME_OVERLAY = FIRST_SYSTEM_WINDOW+20,
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TYPE_BOOT_PROGRESS = FIRST_SYSTEM_WINDOW+21,
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TYPE_MAGNIFICATION_OVERLAY = FIRST_SYSTEM_WINDOW+22,
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LAST_SYSTEM_WINDOW = 2999,
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};
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enum {
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INPUT_FEATURE_DISABLE_TOUCH_PAD_GESTURES = 0x00000001,
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INPUT_FEATURE_NO_INPUT_CHANNEL = 0x00000002,
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INPUT_FEATURE_DISABLE_USER_ACTIVITY = 0x00000004,
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};
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sp<InputChannel> inputChannel;
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String8 name;
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int32_t layoutParamsFlags;
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int32_t layoutParamsPrivateFlags;
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int32_t layoutParamsType;
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nsecs_t dispatchingTimeout;
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int32_t frameLeft;
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int32_t frameTop;
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int32_t frameRight;
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int32_t frameBottom;
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float scaleFactor;
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Region touchableRegion;
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bool visible;
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bool canReceiveKeys;
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bool hasFocus;
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bool hasWallpaper;
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bool paused;
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int32_t layer;
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int32_t ownerPid;
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int32_t ownerUid;
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int32_t inputFeatures;
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int32_t displayId;
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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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/* Returns true if 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 isTrustedOverlay() const;
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bool supportsSplitTouch() const;
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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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const sp<InputApplicationHandle> inputApplicationHandle;
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inline const InputWindowInfo* getInfo() const {
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return mInfo;
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}
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inline sp<InputChannel> getInputChannel() const {
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return mInfo ? mInfo->inputChannel : NULL;
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}
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inline String8 getName() const {
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return mInfo ? mInfo->name : String8("<invalid>");
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}
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inline nsecs_t getDispatchingTimeout(nsecs_t defaultValue) const {
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return mInfo ? 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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*
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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() = 0;
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/**
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* Releases the storage used by the associated information when it is
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* no longer needed.
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*/
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void releaseInfo();
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protected:
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InputWindowHandle(const sp<InputApplicationHandle>& inputApplicationHandle);
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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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