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/* -*- 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
#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);
}
}