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/*
* Copyright (C) 2019 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.
*/
#include <gui/WindowInfo.h>
#include "InputTarget.h"
#include "TouchState.h"
using android::gui::WindowInfo;
using android::gui::WindowInfoHandle;
namespace android::inputdispatcher {
void TouchState::reset() {
*this = TouchState();
}
void TouchState::addOrUpdateWindow(const sp<WindowInfoHandle>& windowHandle, int32_t targetFlags,
BitSet32 pointerIds) {
if (targetFlags & InputTarget::FLAG_SPLIT) {
split = true;
}
for (size_t i = 0; i < windows.size(); i++) {
TouchedWindow& touchedWindow = windows[i];
if (touchedWindow.windowHandle == windowHandle) {
touchedWindow.targetFlags |= targetFlags;
if (targetFlags & InputTarget::FLAG_DISPATCH_AS_SLIPPERY_EXIT) {
touchedWindow.targetFlags &= ~InputTarget::FLAG_DISPATCH_AS_IS;
}
touchedWindow.pointerIds.value |= pointerIds.value;
return;
}
}
if (preventNewTargets) return; // Don't add new TouchedWindows.
TouchedWindow touchedWindow;
touchedWindow.windowHandle = windowHandle;
touchedWindow.targetFlags = targetFlags;
touchedWindow.pointerIds = pointerIds;
windows.push_back(touchedWindow);
}
void TouchState::removeWindowByToken(const sp<IBinder>& token) {
for (size_t i = 0; i < windows.size(); i++) {
if (windows[i].windowHandle->getToken() == token) {
windows.erase(windows.begin() + i);
return;
}
}
}
void TouchState::filterNonAsIsTouchWindows() {
for (size_t i = 0; i < windows.size();) {
TouchedWindow& window = windows[i];
if (window.targetFlags &
(InputTarget::FLAG_DISPATCH_AS_IS | InputTarget::FLAG_DISPATCH_AS_SLIPPERY_ENTER)) {
window.targetFlags &= ~InputTarget::FLAG_DISPATCH_MASK;
window.targetFlags |= InputTarget::FLAG_DISPATCH_AS_IS;
i += 1;
} else {
windows.erase(windows.begin() + i);
}
}
}
void TouchState::filterWindowsExcept(const sp<IBinder>& token) {
std::erase_if(windows,
[&token](const TouchedWindow& w) { return w.windowHandle->getToken() != token; });
}
sp<WindowInfoHandle> TouchState::getFirstForegroundWindowHandle() const {
for (size_t i = 0; i < windows.size(); i++) {
const TouchedWindow& window = windows[i];
if (window.targetFlags & InputTarget::FLAG_FOREGROUND) {
return window.windowHandle;
}
}
return nullptr;
}
bool TouchState::isSlippery() const {
// Must have exactly one foreground window.
bool haveSlipperyForegroundWindow = false;
for (const TouchedWindow& window : windows) {
if (window.targetFlags & InputTarget::FLAG_FOREGROUND) {
if (haveSlipperyForegroundWindow ||
!window.windowHandle->getInfo()->inputConfig.test(
WindowInfo::InputConfig::SLIPPERY)) {
return false;
}
haveSlipperyForegroundWindow = true;
}
}
return haveSlipperyForegroundWindow;
}
sp<WindowInfoHandle> TouchState::getWallpaperWindow() const {
for (size_t i = 0; i < windows.size(); i++) {
const TouchedWindow& window = windows[i];
if (window.windowHandle->getInfo()->inputConfig.test(
gui::WindowInfo::InputConfig::IS_WALLPAPER)) {
return window.windowHandle;
}
}
return nullptr;
}
sp<WindowInfoHandle> TouchState::getWindow(const sp<IBinder>& token) const {
for (const TouchedWindow& touchedWindow : windows) {
const auto& windowHandle = touchedWindow.windowHandle;
if (windowHandle->getToken() == token) {
return windowHandle;
}
}
return nullptr;
}
} // namespace android::inputdispatcher
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