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-rw-r--r--layout/printing/nsPrintData.cpp126
1 files changed, 126 insertions, 0 deletions
diff --git a/layout/printing/nsPrintData.cpp b/layout/printing/nsPrintData.cpp
new file mode 100644
index 0000000000..db09acae39
--- /dev/null
+++ b/layout/printing/nsPrintData.cpp
@@ -0,0 +1,126 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsPrintData.h"
+
+#include "mozilla/gfx/PrintPromise.h"
+#include "nsIStringBundle.h"
+#include "nsIWidget.h"
+#include "nsPrintObject.h"
+#include "nsIWebProgressListener.h"
+#include "mozilla/Services.h"
+
+//-----------------------------------------------------
+// PR LOGGING
+#include "mozilla/Logging.h"
+
+extern mozilla::LazyLogModule gPrintingLog;
+
+#define PR_PL(_p1) MOZ_LOG(gPrintingLog, mozilla::LogLevel::Debug, _p1);
+
+static void InformListenersOfProgressChange(
+ const nsCOMArray<nsIWebProgressListener>& aListeners, int32_t aProgress,
+ int32_t aMaxProgress, bool aDoStartStop, int32_t aFlag) {
+ size_t numberOfListeners = aListeners.Length();
+ for (size_t i = 0; i < numberOfListeners; ++i) {
+ nsCOMPtr<nsIWebProgressListener> listener = aListeners.SafeElementAt(i);
+ if (NS_WARN_IF(!listener)) {
+ continue;
+ }
+ listener->OnProgressChange(nullptr, nullptr, aProgress, aMaxProgress,
+ aProgress, aMaxProgress);
+ if (aDoStartStop) {
+ listener->OnStateChange(nullptr, nullptr, aFlag, NS_OK);
+ }
+ }
+}
+
+static void InformListenersOfEndPrinting(
+ const nsCOMArray<nsIWebProgressListener>& aListeners) {
+ InformListenersOfProgressChange(
+ aListeners, 100, 100, true,
+ nsIWebProgressListener::STATE_STOP |
+ nsIWebProgressListener::STATE_IS_DOCUMENT);
+ InformListenersOfProgressChange(aListeners, 100, 100, true,
+ nsIWebProgressListener::STATE_STOP |
+ nsIWebProgressListener::STATE_IS_NETWORK);
+}
+
+//---------------------------------------------------
+//-- nsPrintData Class Impl
+//---------------------------------------------------
+nsPrintData::nsPrintData(ePrintDataType aType)
+ : mType(aType), mOnStartSent(false), mIsAborted(false) {}
+
+nsPrintData::~nsPrintData() {
+ // Two things need to be done:
+ // - Inform the listeners
+ // - End/Abort document
+ // Preview requires neither, so return early.
+ if (mType == eIsPrintPreview) {
+ return;
+ }
+
+ if (mPrintDC) {
+ PR_PL(("****************** End Document ************************\n"));
+ PR_PL(("\n"));
+ if (mPrintDC->IsCurrentlyPrintingDocument()) {
+ if (!mIsAborted) {
+ auto promise = mPrintDC->EndDocument();
+ if (mOnStartSent) {
+ promise->Then(mozilla::GetMainThreadSerialEventTarget(), __func__,
+ [listeners = std::move(mPrintProgressListeners)](
+ // We're in dtor, so capture listeners by move.
+ const mozilla::gfx::PrintEndDocumentPromise::
+ ResolveOrRejectValue&) {
+ InformListenersOfEndPrinting(listeners);
+ });
+ }
+ // Informing listeners asynchronously, or don't need to inform them, so
+ // return early.
+ return;
+ }
+ mPrintDC->AbortDocument();
+ }
+ }
+ if (mOnStartSent) {
+ // Synchronously notify the listeners.
+ OnEndPrinting();
+ }
+}
+
+void nsPrintData::OnStartPrinting() {
+ if (!mOnStartSent) {
+ InformListenersOfProgressChange(
+ mPrintProgressListeners, 0, 0, true,
+ nsIWebProgressListener::STATE_START |
+ nsIWebProgressListener::STATE_IS_DOCUMENT |
+ nsIWebProgressListener::STATE_IS_NETWORK);
+ mOnStartSent = true;
+ }
+}
+
+void nsPrintData::OnEndPrinting() {
+ InformListenersOfEndPrinting(mPrintProgressListeners);
+}
+
+void nsPrintData::DoOnProgressChange(int32_t aProgress, int32_t aMaxProgress,
+ bool aDoStartStop, int32_t aFlag) {
+ InformListenersOfProgressChange(mPrintProgressListeners, aProgress,
+ aMaxProgress, aDoStartStop, aFlag);
+}
+
+void nsPrintData::DoOnStatusChange(nsresult aStatus) {
+ size_t numberOfListeners = mPrintProgressListeners.Length();
+ for (size_t i = 0; i < numberOfListeners; ++i) {
+ nsCOMPtr<nsIWebProgressListener> listener =
+ mPrintProgressListeners.SafeElementAt(i);
+ if (NS_WARN_IF(!listener)) {
+ continue;
+ }
+ listener->OnStatusChange(nullptr, nullptr, aStatus, nullptr);
+ }
+}