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-rw-r--r--src/webenginewidgets/api/qwebenginepage.cpp151
1 files changed, 144 insertions, 7 deletions
diff --git a/src/webenginewidgets/api/qwebenginepage.cpp b/src/webenginewidgets/api/qwebenginepage.cpp
index 0188cfef8..0b15731cf 100644
--- a/src/webenginewidgets/api/qwebenginepage.cpp
+++ b/src/webenginewidgets/api/qwebenginepage.cpp
@@ -47,6 +47,7 @@
#include "favicon_manager.h"
#include "file_picker_controller.h"
#include "javascript_dialog_controller.h"
+#include "pdfium_document_wrapper_qt.h"
#include "qwebenginefullscreenrequest.h"
#include "qwebenginehistory.h"
#include "qwebenginehistory_p.h"
@@ -79,6 +80,9 @@
#include <QMenu>
#include <QMessageBox>
#include <QMimeData>
+#ifndef QT_NO_PRINTER
+#include <QPrinter>
+#endif
#include <QStandardPaths>
#include <QStyle>
#include <QTimer>
@@ -92,6 +96,83 @@ using namespace QtWebEngineCore;
static const int MaxTooltipLength = 1024;
+#ifndef QT_NO_PRINTER
+#if defined(ENABLE_PDF)
+static bool printPdfDataOnPrinter(const QByteArray& data, QPrinter& printer)
+{
+ QRect printerPageRect = printer.pageRect();
+ PdfiumDocumentWrapperQt pdfiumWrapper(data.constData(), data.size(), printerPageRect.size());
+
+ int toPage = printer.toPage();
+ int fromPage = printer.fromPage();
+ bool ascendingOrder = true;
+
+ if (fromPage == 0 && toPage == 0) {
+ fromPage = 1;
+ toPage = pdfiumWrapper.pageCount();
+ }
+ fromPage = qMax(1, fromPage);
+ toPage = qMin(pdfiumWrapper.pageCount(), toPage);
+
+ if (printer.pageOrder() == QPrinter::LastPageFirst) {
+ qSwap(fromPage, toPage);
+ ascendingOrder = false;
+ }
+
+ int documentCopies = printer.copyCount();
+ int pageCopies = 1;
+ if (printer.collateCopies()) {
+ pageCopies = documentCopies;
+ documentCopies = 1;
+ }
+
+ QPainter painter;
+ if (!painter.begin(&printer)) {
+#if QT_VERSION >= QT_VERSION_CHECK(5, 7, 0)
+ qWarning("Failure to print on printer %ls: Could not open printer for painting.", qUtf16Printable(printer.printerName()));
+#else
+ qWarning("Failure to print on printer %s: Could not open printer for painting.", qPrintable(printer.printerName()));
+#endif
+ return false;
+ }
+
+ for (int printedDocuments = 0; printedDocuments < documentCopies; printedDocuments++) {
+ int currentPageIndex = fromPage;
+ while (true) {
+ for (int printedPages = 0; printedPages < pageCopies; printedPages++) {
+ if (printer.printerState() == QPrinter::Aborted
+ || printer.printerState() == QPrinter::Error)
+ return false;
+
+ QImage currentImage = pdfiumWrapper.pageAsQImage(currentPageIndex - 1);
+ if (currentImage.isNull())
+ return false;
+
+ painter.drawImage(printerPageRect, currentImage, currentImage.rect());
+ if (printedPages < pageCopies - 1)
+ printer.newPage();
+ }
+
+ if (currentPageIndex == toPage)
+ break;
+
+ if (ascendingOrder)
+ currentPageIndex++;
+ else
+ currentPageIndex--;
+
+ printer.newPage();
+ }
+ if (printedDocuments < documentCopies - 1)
+ printer.newPage();
+ }
+ painter.end();
+
+ return true;
+}
+#endif // defined(ENABLE_PDF)
+#endif // QT_NO_PRINTER
+
static QWebEnginePage::WebWindowType toWindowType(WebContentsAdapterClient::WindowOpenDisposition disposition)
{
switch (disposition) {
@@ -142,6 +223,9 @@ QWebEnginePagePrivate::QWebEnginePagePrivate(QWebEngineProfile *_profile)
, fullscreenMode(false)
, webChannel(nullptr)
, webChannelWorldId(QWebEngineScript::MainWorld)
+#ifndef QT_NO_PRINTER
+ , currentPrinter(nullptr)
+#endif
{
memset(actions, 0, sizeof(actions));
}
@@ -389,15 +473,27 @@ void QWebEnginePagePrivate::didFindText(quint64 requestId, int matchCount)
void QWebEnginePagePrivate::didPrintPage(quint64 requestId, const QByteArray &result)
{
- m_callbacks.invoke(requestId, result);
-}
-
+#if defined(ENABLE_PDF)
#ifndef QT_NO_PRINTER
-void QWebEnginePagePrivate::didPrintPageOnPrinter(quint64 requestId, bool result)
-{
+ // If no currentPrinter is set that means that were printing to PDF only.
+ if (!currentPrinter) {
+ m_callbacks.invoke(requestId, result);
+ return;
+ }
+
+ bool printerResult = printPdfDataOnPrinter(result, *currentPrinter);
+
+ m_callbacks.invoke(requestId, printerResult);
+ currentPrinter = nullptr;
+#else // If print support is disabled, only PDF printing is available.
m_callbacks.invoke(requestId, result);
+#endif // ifndef QT_NO_PRINTER
+#else // defined(ENABLE_PDF)
+ // we should never enter this branch, but just for safe-keeping...
+ Q_UNUSED(result);
+ m_callbacks.invoke(requestId, QByteArray());
+#endif // defined(ENABLE_PDF)
}
-#endif
void QWebEnginePagePrivate::passOnFocus(bool reverse)
{
@@ -1844,8 +1940,20 @@ QSizeF QWebEnginePage::contentsSize() const
*/
void QWebEnginePage::printToPdf(const QString &filePath, const QPageLayout &pageLayout)
{
+#if defined(ENABLE_PDF)
Q_D(const QWebEnginePage);
+#ifndef QT_NO_PRINTER
+ if (d->currentPrinter) {
+#if QT_VERSION >= QT_VERSION_CHECK(5, 7, 0)
+ qWarning("Cannot print to PDF while at the same time printing on printer %ls", qUtf16Printable(d->currentPrinter->printerName()));
+#else
+ qWarning("Cannot print to PDF while at the same time printing on printer %s", qPrintable(d->currentPrinter->printerName()));
+#endif
+ return;
+ }
+#endif
d->adapter->printToPDF(pageLayout, filePath);
+#endif // if defined(ENABLE_PDF)
}
@@ -1863,8 +1971,23 @@ void QWebEnginePage::printToPdf(const QString &filePath, const QPageLayout &page
void QWebEnginePage::printToPdf(const QWebEngineCallback<const QByteArray&> &resultCallback, const QPageLayout &pageLayout)
{
Q_D(QWebEnginePage);
+#if defined(ENABLE_PDF)
+#ifndef QT_NO_PRINTER
+ if (d->currentPrinter) {
+#if QT_VERSION >= QT_VERSION_CHECK(5, 7, 0)
+ qWarning("Cannot print to PDF while at the same time printing on printer %ls", qUtf16Printable(d->currentPrinter->printerName()));
+#else
+ qWarning("Cannot print to PDF while at the same time printing on printer %s", qPrintable(d->currentPrinter->printerName()));
+#endif
+ d->m_callbacks.invokeEmpty(resultCallback);
+ return;
+ }
+#endif // ifndef QT_NO_PRINTER
quint64 requestId = d->adapter->printToPDFCallbackResult(pageLayout);
d->m_callbacks.registerCallback(requestId, resultCallback);
+#else // if defined(ENABLE_PDF)
+ d->m_callbacks.invokeEmpty(resultCallback);
+#endif // if defined(ENABLE_PDF)
}
#ifndef QT_NO_PRINTER
@@ -1884,8 +2007,22 @@ void QWebEnginePage::printToPdf(const QWebEngineCallback<const QByteArray&> &res
void QWebEnginePage::print(QPrinter *printer, const QWebEngineCallback<bool> &resultCallback)
{
Q_D(QWebEnginePage);
- quint64 requestId = d->adapter->printOnPrinterCallbackResult(printer);
+#if defined(ENABLE_PDF)
+ if (d->currentPrinter) {
+#if QT_VERSION >= QT_VERSION_CHECK(5, 7, 0)
+ qWarning("Cannot print page on printer %ls: Already printing on %ls.", qUtf16Printable(printer->printerName()), qUtf16Printable(d->currentPrinter->printerName()));
+#else
+ qWarning("Cannot print page on printer %s: Already printing on %s.", qPrintable(printer->printerName()), qPrintable(d->currentPrinter->printerName()));
+#endif
+ d->m_callbacks.invokeDirectly(resultCallback, false);
+ return;
+ }
+ d->currentPrinter = printer;
+ quint64 requestId = d->adapter->printToPDFCallbackResult(printer->pageLayout(), printer->colorMode() == QPrinter::Color);
d->m_callbacks.registerCallback(requestId, resultCallback);
+#else // if defined(ENABLE_PDF)
+ d->m_callbacks.invokeDirectly(resultCallback, false);
+#endif // if defined(ENABLE_PDF)
}
#endif // QT_NO_PRINTER
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-23 23:33:25 +0000