Files
firefox/widget/android/nsDeviceContextAndroid.cpp
T
James Teh 6ef328dbd5 Bug 1657973 part 1: Plumb BrowsingContext id to PrintTargetSkPDF::BeginPrinting and make it available to nsDeviceContext::End/AbortDocument. r=emilio,geckoview-reviewers,win-reviewers,layout-reviewers,gstoll,m_kato
In order to generate tagged PDF later, we need the ability to associate printed content with semantic document content.
The BrowsingContext id is the easiest way to do this without too much coupling of modules.

Differential Revision: https://phabricator.services.mozilla.com/D285957
2026-03-20 07:00:33 +00:00

102 lines
3.1 KiB
C++

/* 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 "nsDeviceContextAndroid.h"
#include "mozilla/gfx/PrintTargetPDF.h"
#include "mozilla/RefPtr.h"
#include "nsComponentManagerUtils.h"
#include "nsString.h"
#include "nsIFile.h"
#include "nsIFileStreams.h"
#include "nsIPrintSettings.h"
#include "nsIFileStreams.h"
#include "nsDirectoryServiceDefs.h"
#include "nsAnonymousTemporaryFile.h"
using namespace mozilla;
using namespace mozilla::gfx;
NS_IMPL_ISUPPORTS(nsDeviceContextSpecAndroid, nsIDeviceContextSpec)
nsDeviceContextSpecAndroid::~nsDeviceContextSpecAndroid() {
if (mTempFile) {
mTempFile->Remove(false);
}
}
already_AddRefed<PrintTarget> nsDeviceContextSpecAndroid::MakePrintTarget() {
double width, height;
mPrintSettings->GetEffectiveSheetSize(&width, &height);
// convert twips to points
width /= TWIPS_PER_POINT_FLOAT;
height /= TWIPS_PER_POINT_FLOAT;
auto stream = [&]() -> nsCOMPtr<nsIOutputStream> {
if (mPrintSettings->GetOutputDestination() ==
nsIPrintSettings::kOutputDestinationStream) {
nsCOMPtr<nsIOutputStream> out;
mPrintSettings->GetOutputStream(getter_AddRefs(out));
return out;
}
if (NS_FAILED(
NS_OpenAnonymousTemporaryNsIFile(getter_AddRefs(mTempFile)))) {
return nullptr;
}
// Print to printer not supported...
nsCOMPtr<nsIFileOutputStream> s =
do_CreateInstance("@mozilla.org/network/file-output-stream;1");
if (NS_FAILED(s->Init(mTempFile, -1, -1, 0))) {
return nullptr;
}
return s;
}();
return PrintTargetPDF::CreateOrNull(stream, IntSize::Ceil(width, height));
}
NS_IMETHODIMP
nsDeviceContextSpecAndroid::Init(nsIPrintSettings* aPS, bool aIsPrintPreview) {
mPrintSettings = aPS;
return NS_OK;
}
NS_IMETHODIMP
nsDeviceContextSpecAndroid::BeginDocument(const nsAString& aTitle,
const nsAString& aPrintToFileName,
uint64_t aBrowsingContextId,
int32_t aStartPage,
int32_t aEndPage) {
return NS_OK;
}
RefPtr<PrintEndDocumentPromise> nsDeviceContextSpecAndroid::EndDocument() {
return nsIDeviceContextSpec::EndDocumentPromiseFromResult(DoEndDocument(),
__func__);
}
NS_IMETHODIMP
nsDeviceContextSpecAndroid::DoEndDocument() {
if (mPrintSettings->GetOutputDestination() ==
nsIPrintSettings::kOutputDestinationFile &&
mTempFile) {
nsAutoString targetPath;
mPrintSettings->GetToFileName(targetPath);
nsCOMPtr<nsIFile> destFile;
MOZ_TRY(NS_NewLocalFile(targetPath, getter_AddRefs(destFile)));
nsAutoString destLeafName;
MOZ_TRY(destFile->GetLeafName(destLeafName));
nsCOMPtr<nsIFile> destDir;
MOZ_TRY(destFile->GetParent(getter_AddRefs(destDir)));
MOZ_TRY(mTempFile->MoveTo(destDir, destLeafName));
destFile->SetPermissions(0666);
mTempFile = nullptr;
}
return NS_OK;
}