diff options
| author | Szabolcs David <davidsz@inf.u-szeged.hu> | 2021-06-03 01:37:37 +0200 |
|---|---|---|
| committer | Szabolcs David <davidsz@inf.u-szeged.hu> | 2021-06-03 14:05:22 +0200 |
| commit | 4943d9801ccad59aef073374644fc991e49987e3 (patch) | |
| tree | 4a4495c6a3391aa1bc4ad42d1548ff2f1bc9e46e /src/webenginewidgets/api/qwebengineview.cpp | |
| parent | 57140466f277a074b288a515b2bdfd26c8a3cbe3 (diff) | |
Drop printsupport dependency from core
Prevent linkage of core to widgets by moving printing API from
QWebEnginePage to View and using QPagedPaintDevice (the QtGui ancestor
of QPrinter) where it's needed.
Change-Id: I6ea96edb495b0dcaaa584bbe72632fda025c18d3
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
Diffstat (limited to 'src/webenginewidgets/api/qwebengineview.cpp')
| -rw-r--r-- | src/webenginewidgets/api/qwebengineview.cpp | 126 |
1 files changed, 125 insertions, 1 deletions
diff --git a/src/webenginewidgets/api/qwebengineview.cpp b/src/webenginewidgets/api/qwebengineview.cpp index 9ce954e06..a34c841e3 100644 --- a/src/webenginewidgets/api/qwebengineview.cpp +++ b/src/webenginewidgets/api/qwebengineview.cpp @@ -80,6 +80,13 @@ #include <QStyle> #include <QGuiApplication> +#if QT_CONFIG(webengine_printing_and_pdf) +#include "printing/printer_worker.h" + +#include <QPrinter> +#include <QThread> +#endif + QT_BEGIN_NAMESPACE void QWebEngineViewPrivate::pageChanged(QWebEnginePage *oldPage, QWebEnginePage *newPage) @@ -344,7 +351,13 @@ static QAccessibleInterface *webAccessibleFactory(const QString &, QObject *obje #endif // QT_NO_ACCESSIBILITY QWebEngineViewPrivate::QWebEngineViewPrivate() - : page(0), m_dragEntered(false), m_ownsPage(false), m_contextRequest(nullptr) + : page(0) + , m_dragEntered(false) + , m_ownsPage(false) + , m_contextRequest(nullptr) +#if QT_CONFIG(webengine_printing_and_pdf) + , currentPrinter(nullptr) +#endif { #ifndef QT_NO_ACCESSIBILITY QAccessible::installFactory(&webAccessibleFactory); @@ -495,6 +508,61 @@ QObject *QWebEngineViewPrivate::accessibilityParentObject() return q; } +void QWebEngineViewPrivate::didPrintPage(quint64 requestId, QSharedPointer<QByteArray> result) +{ +#if QT_CONFIG(webengine_printing_and_pdf) + Q_Q(QWebEngineView); + + // If no currentPrinter is set that means that were printing to PDF only. + if (!currentPrinter) { + if (!result.data()) + return; + page->d_ptr->m_callbacks.invoke(requestId, *(result.data())); + return; + } + + QThread *printerThread = new QThread; + QObject::connect(printerThread, &QThread::finished, printerThread, &QThread::deleteLater); + printerThread->start(); + + QtWebEngineCore::PrinterWorker *printerWorker = new QtWebEngineCore::PrinterWorker(result, currentPrinter); + printerWorker->m_deviceResolution = currentPrinter->resolution(); + printerWorker->m_firstPageFirst = currentPrinter->pageOrder() == QPrinter::FirstPageFirst; + printerWorker->m_documentCopies = currentPrinter->copyCount(); + printerWorker->m_collateCopies = currentPrinter->collateCopies(); + + QObject::connect(printerWorker, &QtWebEngineCore::PrinterWorker::resultReady, q, [requestId, this](bool success) { + currentPrinter = nullptr; + page->d_ptr->m_callbacks.invoke(requestId, success); + }); + + QObject::connect(printerWorker, &QtWebEngineCore::PrinterWorker::resultReady, printerThread, &QThread::quit); + QObject::connect(printerThread, &QThread::finished, printerWorker, &QtWebEngineCore::PrinterWorker::deleteLater); + + printerWorker->moveToThread(printerThread); + QMetaObject::invokeMethod(printerWorker, "print"); + +#else + // we should never enter this branch, but just for safe-keeping... + Q_UNUSED(result); + page->d_ptr->m_callbacks.invoke(requestId, QByteArray()); +#endif +} + +void QWebEngineViewPrivate::didPrintPageToPdf(const QString &filePath, bool success) +{ + Q_Q(QWebEngineView); + Q_EMIT q->pdfPrintingFinished(filePath, success); +} + +void QWebEngineViewPrivate::printRequested() +{ + Q_Q(QWebEngineView); + QTimer::singleShot(0, q, [q]() { + Q_EMIT q->printRequested(); + }); +} + bool QWebEngineViewPrivate::isVisible() const { Q_Q(const QWebEngineView); @@ -878,6 +946,62 @@ QWebEngineContextMenuRequest *QWebEngineView::lastContextMenuRequest() const return d->m_contextRequest; } +void QWebEngineView::printToPdf(const QString &filePath, const QPageLayout &layout) +{ +#if QT_CONFIG(webengine_printing_and_pdf) + Q_D(QWebEngineView); + if (d->currentPrinter) { + qWarning("Cannot print to PDF while printing at the same time."); + return; + } + page()->d_ptr->ensureInitialized(); + page()->d_ptr->adapter->printToPDF(layout, filePath); +#else + Q_UNUSED(filePath); + Q_UNUSED(layout); +#endif +} + +void QWebEngineView::printToPdf(const QWebEngineCallback<const QByteArray&> &resultCallback, const QPageLayout &layout) +{ +#if QT_CONFIG(webengine_printing_and_pdf) + Q_D(QWebEngineView); + if (d->currentPrinter) { + qWarning("Cannot print to PDF while printing at the same time."); + page()->d_ptr->m_callbacks.invokeEmpty(resultCallback); + return; + } + page()->d_ptr->ensureInitialized(); + quint64 requestId = page()->d_ptr->adapter->printToPDFCallbackResult(layout); + page()->d_ptr->m_callbacks.registerCallback(requestId, resultCallback); +#else + Q_UNUSED(layout); + page()->d_ptr->m_callbacks.invokeEmpty(resultCallback); +#endif +} + +void QWebEngineView::print(QPrinter *printer, const QWebEngineCallback<bool> &resultCallback) +{ +#if QT_CONFIG(webengine_printing_and_pdf) + Q_D(QWebEngineView); + if (d->currentPrinter) { + qWarning("Cannot print page on printer %ls: Already printing on a device.", qUtf16Printable(printer->printerName())); + page()->d_ptr->m_callbacks.invokeDirectly(resultCallback, false); + return; + } + + d->currentPrinter = printer; + page()->d_ptr->ensureInitialized(); + quint64 requestId = page()->d_ptr->adapter->printToPDFCallbackResult(printer->pageLayout(), + printer->colorMode() == QPrinter::Color, + false); + page()->d_ptr->m_callbacks.registerCallback(requestId, resultCallback); +#else + Q_UNUSED(printer); + page()->d_ptr->m_callbacks.invokeDirectly(resultCallback, false); +#endif +} + #ifndef QT_NO_ACCESSIBILITY bool QWebEngineViewAccessible::isValid() const { |