webview.cpp Example File

webenginewidgets/simplebrowser/webview.cpp
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#include "browser.h" #include "browserwindow.h" #include "tabwidget.h" #include "webpage.h" #include "webpopupwindow.h" #include "webview.h" #include <QContextMenuEvent> #include <QDebug> #include <QMenu> #include <QMessageBox> #include <QTimer> WebView::WebView(QWidget *parent) : QWebEngineView(parent) , m_loadProgress(100) { connect(this, &QWebEngineView::loadStarted, [this]() { m_loadProgress = 0; emit favIconChanged(favIcon()); }); connect(this, &QWebEngineView::loadProgress, [this](int progress) { m_loadProgress = progress; }); connect(this, &QWebEngineView::loadFinished, [this](bool success) { m_loadProgress = success ? 100 : -1; emit favIconChanged(favIcon()); }); connect(this, &QWebEngineView::iconChanged, [this](const QIcon &) { emit favIconChanged(favIcon()); }); connect(this, &QWebEngineView::renderProcessTerminated, [this](QWebEnginePage::RenderProcessTerminationStatus termStatus, int statusCode) { QString status; switch (termStatus) { case QWebEnginePage::NormalTerminationStatus: status = tr("Render process normal exit"); break; case QWebEnginePage::AbnormalTerminationStatus: status = tr("Render process abnormal exit"); break; case QWebEnginePage::CrashedTerminationStatus: status = tr("Render process crashed"); break; case QWebEnginePage::KilledTerminationStatus: status = tr("Render process killed"); break; } QMessageBox::StandardButton btn = QMessageBox::question(window(), status, tr("Render process exited with code: %1\n" "Do you want to reload the page ?").arg(statusCode)); if (btn == QMessageBox::Yes) QTimer::singleShot(0, [this] { reload(); }); }); } void WebView::setPage(WebPage *page) { createWebActionTrigger(page,QWebEnginePage::Forward); createWebActionTrigger(page,QWebEnginePage::Back); createWebActionTrigger(page,QWebEnginePage::Reload); createWebActionTrigger(page,QWebEnginePage::Stop); QWebEngineView::setPage(page); } int WebView::loadProgress() const { return m_loadProgress; } void WebView::createWebActionTrigger(QWebEnginePage *page, QWebEnginePage::WebAction webAction) { QAction *action = page->action(webAction); connect(action, &QAction::changed, [this, action, webAction]{ emit webActionEnabledChanged(webAction, action->isEnabled()); }); } bool WebView::isWebActionEnabled(QWebEnginePage::WebAction webAction) const { return page()->action(webAction)->isEnabled(); } QIcon WebView::favIcon() const { QIcon favIcon = icon(); if (!favIcon.isNull()) return favIcon; if (m_loadProgress < 0) { static QIcon errorIcon(QStringLiteral(":dialog-error.png")); return errorIcon; } else if (m_loadProgress < 100) { static QIcon loadingIcon(QStringLiteral(":view-refresh.png")); return loadingIcon; } else { static QIcon defaultIcon(QStringLiteral(":text-html.png")); return defaultIcon; } } QWebEngineView *WebView::createWindow(QWebEnginePage::WebWindowType type) { BrowserWindow *mainWindow = qobject_cast<BrowserWindow*>(window()); if (!mainWindow) return nullptr; switch (type) { case QWebEnginePage::WebBrowserTab: { return mainWindow->tabWidget()->createTab(); } case QWebEnginePage::WebBrowserBackgroundTab: { return mainWindow->tabWidget()->createBackgroundTab(); } case QWebEnginePage::WebBrowserWindow: { return mainWindow->browser()->createWindow()->currentTab(); } case QWebEnginePage::WebDialog: { WebPopupWindow *popup = new WebPopupWindow(page()->profile()); connect(popup->view(), &WebView::devToolsRequested, this, &WebView::devToolsRequested); return popup->view(); } } return nullptr; } void WebView::contextMenuEvent(QContextMenuEvent *event) { QMenu *menu = page()->createStandardContextMenu(); const QList<QAction *> actions = menu->actions(); auto inspectElement = std::find(actions.cbegin(), actions.cend(), page()->action(QWebEnginePage::InspectElement)); if (inspectElement == actions.cend()) { auto viewSource = std::find(actions.cbegin(), actions.cend(), page()->action(QWebEnginePage::ViewSource)); if (viewSource == actions.cend()) menu->addSeparator(); QAction *action = new QAction(menu); action->setText("Open inspector in new window"); connect(action, &QAction::triggered, [this]() { emit devToolsRequested(page()); }); QAction *before(inspectElement == actions.cend() ? nullptr : *inspectElement); menu->insertAction(before, action); } else { (*inspectElement)->setText(tr("Inspect element")); } menu->popup(event->globalPos()); }

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