147 lines
4.5 KiB
C++
147 lines
4.5 KiB
C++
#include "transition_overlay.h"
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#include <QEvent>
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#include <QFont>
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#include <QGuiApplication>
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#include <QLabel>
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#include <QPalette>
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#include <QScreen>
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#include <QTimer>
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#include <QVBoxLayout>
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#include <QVariant>
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namespace vdi {
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namespace {
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constexpr int kTickMs = 400; // 省略号/旋轮动画周期
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constexpr int kFadeStepMs = 40; // 淡出步进周期
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constexpr int kFadeSteps = 25; // 全程约 1 秒淡出
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const char* kSpinnerFrames[] = {"◐", "◓", "◑", "◒"};
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} // namespace
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TransitionOverlay::TransitionOverlay(QWidget* parent) : QWidget(parent) {
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// 独立置顶无边框窗口只在启动时映射一次，后续不再与 Moonlight 抢焦点。
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setWindowFlags(Qt::Window | Qt::FramelessWindowHint | Qt::WindowStaysOnTopHint |
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Qt::WindowDoesNotAcceptFocus
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#ifdef Q_OS_UNIX
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| Qt::X11BypassWindowManagerHint
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#endif
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);
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setAttribute(Qt::WA_ShowWithoutActivating);
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// A plain QWidget subclass needs an explicit opaque palette; a type-name
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// stylesheet alone may leave the native window using its default white.
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setAutoFillBackground(true);
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QPalette background = palette();
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background.setColor(QPalette::Window, QColor(QStringLiteral("#0f1420")));
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setPalette(background);
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auto* layout = new QVBoxLayout(this);
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layout->setSpacing(28);
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labelSpinner_ = new QLabel(this);
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QFont spinFont = labelSpinner_->font();
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spinFont.setPointSize(44);
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labelSpinner_->setFont(spinFont);
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labelSpinner_->setAlignment(Qt::AlignCenter);
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labelSpinner_->setStyleSheet(QStringLiteral("color: #2f6feb; background: transparent;"));
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layout->addStretch(1);
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layout->addWidget(labelSpinner_);
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labelTitle_ = new QLabel(this);
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QFont titleFont = labelTitle_->font();
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titleFont.setPointSize(20);
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labelTitle_->setFont(titleFont);
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labelTitle_->setAlignment(Qt::AlignCenter);
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labelTitle_->setStyleSheet(QStringLiteral("color: #e6e9ef; background: transparent;"));
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layout->addWidget(labelTitle_);
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layout->addStretch(2);
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tickTimer_ = new QTimer(this);
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connect(tickTimer_, &QTimer::timeout, this, &TransitionOverlay::onTick);
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fadeTimer_ = new QTimer(this);
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connect(fadeTimer_, &QTimer::timeout, this, &TransitionOverlay::onFadeStep);
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// 活动期间吞掉本窗口的键盘/鼠标事件，避免误触下层页面
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installEventFilter(this);
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}
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void TransitionOverlay::start(const QString& title) {
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tickTimer_->stop();
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fadeTimer_->stop();
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dots_ = 0;
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setWindowOpacity(1.0);
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setProperty("baseTitle", title);
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labelTitle_->setText(title);
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labelSpinner_->setText(QString::fromUtf8(kSpinnerFrames[0]));
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if (QScreen* targetScreen = QGuiApplication::primaryScreen()) {
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setGeometry(targetScreen->geometry());
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}
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show();
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raise();
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tickTimer_->start(kTickMs);
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}
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void TransitionOverlay::finish() {
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tickTimer_->stop();
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fadeTimer_->stop();
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hide();
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setWindowOpacity(1.0);
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}
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void TransitionOverlay::onFirstFrame() {
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// The exclusive X11 kiosk has no compositor to apply window opacity.
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// Once the full-screen stream is ready, unmap the opaque cover directly.
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#ifdef Q_OS_UNIX
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if (QGuiApplication::platformName() == QStringLiteral("xcb")) {
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finish();
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return;
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}
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#endif
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// 首帧已出画：停止动画并淡出；若尚未显示/已在淡出则忽略
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if (!isVisible() || fadeTimer_->isActive()) {
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return;
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}
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tickTimer_->stop();
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fadeTimer_->start(kFadeStepMs);
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}
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void TransitionOverlay::onTick() {
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dots_ = (dots_ + 1) % 4;
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const QString base = property("baseTitle").toString();
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if (!base.isEmpty()) {
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labelTitle_->setText(base + QString(dots_, QLatin1Char('.')));
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}
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labelSpinner_->setText(QString::fromUtf8(kSpinnerFrames[dots_]));
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}
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void TransitionOverlay::onFadeStep() {
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const double opacity = windowOpacity() - 1.0 / kFadeSteps;
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if (opacity <= 0.0) {
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finish();
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return;
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}
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setWindowOpacity(opacity);
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}
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bool TransitionOverlay::eventFilter(QObject* watched, QEvent* event) {
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if (watched == this && isVisible()) {
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switch (event->type()) {
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case QEvent::KeyPress:
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case QEvent::KeyRelease:
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case QEvent::MouseButtonPress:
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case QEvent::MouseButtonRelease:
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case QEvent::MouseMove:
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case QEvent::Wheel:
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return true;
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default:
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break;
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}
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}
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return QWidget::eventFilter(watched, event);
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}
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} // namespace vdi
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