379 lines
10 KiB
C++
379 lines
10 KiB
C++
#include "Common/System/Display.h"
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#include "Common/Input/InputState.h"
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#include "Common/UI/Root.h"
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#include "Common/UI/Screen.h"
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#include "Common/UI/ScrollView.h"
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#include "Common/UI/UI.h"
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#include "Common/UI/View.h"
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#include "Common/UI/ViewGroup.h"
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#include "Common/UI/IconCache.h"
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#include "Common/Log.h"
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#include "Common/TimeUtil.h"
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#include "Core/KeyMap.h"
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void Screen::focusChanged(ScreenFocusChange focusChange) {
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char *eventName = "";
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switch (focusChange) {
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case ScreenFocusChange::FOCUS_LOST_TOP: eventName = "FOCUS_LOST_TOP"; break;
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case ScreenFocusChange::FOCUS_BECAME_TOP: eventName = "FOCUS_BECAME_TOP"; break;
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}
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DEBUG_LOG(SYSTEM, "Screen %s got %s", this->tag(), eventName);
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}
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ScreenManager::~ScreenManager() {
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shutdown();
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}
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void ScreenManager::switchScreen(Screen *screen) {
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// TODO: inputLock_ ?
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if (!nextStack_.empty() && screen == nextStack_.front().screen) {
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ERROR_LOG(SYSTEM, "Already switching to this screen");
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return;
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}
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// Note that if a dialog is found, this will be a silent background switch that
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// will only become apparent if the dialog is closed. The previous screen will stick around
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// until that switch.
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// TODO: is this still true?
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if (!nextStack_.empty()) {
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ERROR_LOG(SYSTEM, "Already had a nextStack_! Asynchronous open while doing something? Deleting the new screen.");
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delete screen;
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return;
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}
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if (screen == nullptr) {
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WARN_LOG(SYSTEM, "Switching to a zero screen, this can't be good");
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}
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if (stack_.empty() || screen != stack_.back().screen) {
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screen->setScreenManager(this);
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nextStack_.push_back({ screen, 0 });
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}
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}
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void ScreenManager::update() {
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std::lock_guard<std::recursive_mutex> guard(inputLock_);
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if (!nextStack_.empty()) {
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switchToNext();
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}
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if (overlayScreen_) {
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// NOTE: This is not a full UIScreen update, to avoid double global event processing.
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overlayScreen_->update();
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}
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if (stack_.size()) {
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stack_.back().screen->update();
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}
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g_iconCache.FrameUpdate();
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}
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void ScreenManager::switchToNext() {
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std::lock_guard<std::recursive_mutex> guard(inputLock_);
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if (nextStack_.empty()) {
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ERROR_LOG(SYSTEM, "switchToNext: No nextStack_!");
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}
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Layer temp = {nullptr, 0};
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if (!stack_.empty()) {
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temp = stack_.back();
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temp.screen->focusChanged(ScreenFocusChange::FOCUS_LOST_TOP);
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stack_.pop_back();
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}
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stack_.push_back(nextStack_.front());
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nextStack_.front().screen->focusChanged(ScreenFocusChange::FOCUS_BECAME_TOP);
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if (temp.screen) {
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delete temp.screen;
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}
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UI::SetFocusedView(nullptr);
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// When will this ever happen? Should handle focus here too?
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for (size_t i = 1; i < nextStack_.size(); ++i) {
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stack_.push_back(nextStack_[i]);
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}
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nextStack_.clear();
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}
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void ScreenManager::touch(const TouchInput &touch) {
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std::lock_guard<std::recursive_mutex> guard(inputLock_);
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// Send release all events to every screen layer.
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if (touch.flags & TOUCH_RELEASE_ALL) {
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for (auto &layer : stack_) {
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Screen *screen = layer.screen;
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layer.screen->UnsyncTouch(screen->transformTouch(touch));
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}
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} else if (!stack_.empty()) {
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// Let the overlay know about touch-downs, to be able to dismiss popups.
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bool skip = false;
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if (overlayScreen_ && (touch.flags & TOUCH_DOWN)) {
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skip = overlayScreen_->UnsyncTouch(overlayScreen_->transformTouch(touch));
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}
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if (!skip) {
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Screen *screen = stack_.back().screen;
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stack_.back().screen->UnsyncTouch(screen->transformTouch(touch));
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}
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}
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}
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bool ScreenManager::key(const KeyInput &key) {
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std::lock_guard<std::recursive_mutex> guard(inputLock_);
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bool result = false;
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// Send key up to every screen layer, to avoid stuck keys.
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if (key.flags & KEY_UP) {
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for (auto &layer : stack_) {
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result = layer.screen->UnsyncKey(key);
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}
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} else if (!stack_.empty()) {
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result = stack_.back().screen->UnsyncKey(key);
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}
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return result;
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}
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void ScreenManager::axis(const AxisInput *axes, size_t count) {
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std::lock_guard<std::recursive_mutex> guard(inputLock_);
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if (!stack_.empty()) {
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stack_.back().screen->UnsyncAxis(axes, count);
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}
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}
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void ScreenManager::deviceLost() {
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for (auto &iter : stack_)
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iter.screen->deviceLost();
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g_iconCache.ClearTextures();
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}
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void ScreenManager::deviceRestored() {
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for (auto &iter : stack_)
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iter.screen->deviceRestored();
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}
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void ScreenManager::resized() {
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INFO_LOG(SYSTEM, "ScreenManager::resized(dp: %dx%d)", g_display.dp_xres, g_display.dp_yres);
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std::lock_guard<std::recursive_mutex> guard(inputLock_);
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// Have to notify the whole stack, otherwise there will be problems when going back
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// to non-top screens.
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for (auto iter = stack_.begin(); iter != stack_.end(); ++iter) {
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iter->screen->resized();
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}
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}
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void ScreenManager::render() {
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if (!stack_.empty()) {
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switch (stack_.back().flags) {
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case LAYER_TRANSPARENT:
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if (stack_.size() == 1) {
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ERROR_LOG(SYSTEM, "Can't have sidemenu over nothing");
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break;
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} else {
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auto last = stack_.end();
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auto iter = last;
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iter--;
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while (iter->flags == LAYER_TRANSPARENT) {
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iter--;
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}
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auto first = iter;
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_assert_(iter->screen);
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// TODO: Make really sure that this "mismatched" pre/post only happens
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// when screens are "compatible" (both are UIScreens, for example).
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first->screen->preRender();
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while (iter < last) {
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iter->screen->render();
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iter++;
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}
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stack_.back().screen->render();
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if (overlayScreen_) {
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overlayScreen_->render();
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}
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if (postRenderCb_) {
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// Really can't render anything after this! Will crash the screenshot mechanism if we do.
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postRenderCb_(getUIContext(), postRenderUserdata_);
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}
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first->screen->postRender();
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break;
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}
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default:
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_assert_(stack_.back().screen);
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stack_.back().screen->preRender();
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stack_.back().screen->render();
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if (overlayScreen_) {
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overlayScreen_->render();
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}
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if (postRenderCb_) {
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// Really can't render anything after this! Will crash the screenshot mechanism if we do.
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postRenderCb_(getUIContext(), postRenderUserdata_);
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}
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stack_.back().screen->postRender();
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break;
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}
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} else {
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ERROR_LOG(SYSTEM, "No current screen!");
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}
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processFinishDialog();
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}
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void ScreenManager::getFocusPosition(float &x, float &y, float &z) {
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UI::ScrollView::GetLastScrollPosition(x, y);
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UI::View *v = UI::GetFocusedView();
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x += v ? v->GetBounds().x : 0;
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y += v ? v->GetBounds().y : 0;
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z = stack_.size();
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}
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void ScreenManager::sendMessage(UIMessage message, const char *value) {
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if (message == UIMessage::RECREATE_VIEWS) {
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RecreateAllViews();
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} else if (message == UIMessage::LOST_FOCUS) {
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TouchInput input{};
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input.x = -50000.0f;
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input.y = -50000.0f;
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input.flags = TOUCH_RELEASE_ALL;
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input.timestamp = time_now_d();
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input.id = 0;
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touch(input);
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}
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if (!stack_.empty())
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stack_.back().screen->sendMessage(message, value);
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}
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Screen *ScreenManager::topScreen() const {
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if (!stack_.empty())
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return stack_.back().screen;
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else
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return 0;
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}
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void ScreenManager::shutdown() {
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std::lock_guard<std::recursive_mutex> guard(inputLock_);
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for (auto layer : stack_)
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delete layer.screen;
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stack_.clear();
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for (auto layer : nextStack_)
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delete layer.screen;
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nextStack_.clear();
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delete overlayScreen_;
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overlayScreen_ = nullptr;
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}
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void ScreenManager::push(Screen *screen, int layerFlags) {
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std::lock_guard<std::recursive_mutex> guard(inputLock_);
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screen->setScreenManager(this);
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if (screen->isTransparent()) {
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layerFlags |= LAYER_TRANSPARENT;
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}
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// Release touches and unfocus.
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UI::SetFocusedView(nullptr);
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TouchInput input{};
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input.x = -50000.0f;
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input.y = -50000.0f;
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input.flags = TOUCH_RELEASE_ALL;
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input.timestamp = time_now_d();
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input.id = 0;
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touch(input);
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Layer layer = {screen, layerFlags};
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if (!stack_.empty()) {
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stack_.back().screen->focusChanged(ScreenFocusChange::FOCUS_LOST_TOP);
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}
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if (nextStack_.empty()) {
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layer.screen->focusChanged(ScreenFocusChange::FOCUS_BECAME_TOP);
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stack_.push_back(layer);
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} else {
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nextStack_.push_back(layer);
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}
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}
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void ScreenManager::pop() {
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std::lock_guard<std::recursive_mutex> guard(inputLock_);
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if (!stack_.empty()) {
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stack_.back().screen->focusChanged(ScreenFocusChange::FOCUS_LOST_TOP);
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delete stack_.back().screen;
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stack_.pop_back();
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if (!stack_.empty()) {
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stack_.back().screen->focusChanged(ScreenFocusChange::FOCUS_LOST_TOP);
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}
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} else {
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ERROR_LOG(SYSTEM, "Can't pop when stack empty");
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}
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}
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void ScreenManager::RecreateAllViews() {
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std::lock_guard<std::recursive_mutex> guard(inputLock_);
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for (auto it = stack_.begin(); it != stack_.end(); ++it) {
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it->screen->RecreateViews();
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}
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}
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void ScreenManager::finishDialog(Screen *dialog, DialogResult result) {
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if (stack_.empty()) {
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ERROR_LOG(SYSTEM, "Must be in a dialog to finishDialog");
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return;
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}
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if (dialog != stack_.back().screen) {
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ERROR_LOG(SYSTEM, "Wrong dialog being finished!");
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return;
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}
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dialog->onFinish(result);
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dialogFinished_ = dialog;
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dialogResult_ = result;
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}
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Screen *ScreenManager::dialogParent(const Screen *dialog) const {
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for (size_t i = 1; i < stack_.size(); ++i) {
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if (stack_[i].screen == dialog) {
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// The previous screen was the caller (not necessarily the topmost.)
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return stack_[i - 1].screen;
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}
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}
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return nullptr;
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}
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void ScreenManager::processFinishDialog() {
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if (dialogFinished_) {
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{
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std::lock_guard<std::recursive_mutex> guard(inputLock_);
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// Another dialog may have been pushed before the render, so search for it.
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Screen *caller = dialogParent(dialogFinished_);
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bool erased = false;
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for (size_t i = 0; i < stack_.size(); ++i) {
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if (stack_[i].screen == dialogFinished_) {
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stack_[i].screen->focusChanged(ScreenFocusChange::FOCUS_LOST_TOP);
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stack_.erase(stack_.begin() + i);
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erased = true;
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}
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}
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if (erased && !stack_.empty()) {
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stack_.back().screen->focusChanged(ScreenFocusChange::FOCUS_BECAME_TOP);
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}
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if (!caller) {
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ERROR_LOG(SYSTEM, "ERROR: no top screen when finishing dialog");
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} else if (caller != topScreen()) {
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// The caller may get confused if we call dialogFinished() now.
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WARN_LOG(SYSTEM, "Skipping non-top dialog when finishing dialog.");
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} else {
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caller->dialogFinished(dialogFinished_, dialogResult_);
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}
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}
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delete dialogFinished_;
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dialogFinished_ = nullptr;
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}
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}
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void ScreenManager::SetOverlayScreen(Screen *screen) {
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if (overlayScreen_) {
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delete overlayScreen_;
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}
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overlayScreen_ = screen;
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overlayScreen_->setScreenManager(this);
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}
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