289 lines
9.4 KiB
C++
289 lines
9.4 KiB
C++
// Copyright 2020 Microsoft, Inc. All rights reserved.
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// Use of this source code is governed by the MIT license that can be
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// found in the LICENSE file.
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#include "shell/browser/printing/print_view_manager_electron.h"
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#include <utility>
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#include "build/build_config.h"
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#include "components/printing/browser/print_to_pdf/pdf_print_utils.h"
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#include "printing/mojom/print.mojom.h"
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#include "printing/page_range.h"
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#include "third_party/abseil-cpp/absl/types/variant.h"
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#if BUILDFLAG(ENABLE_PRINT_PREVIEW)
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#include "mojo/public/cpp/bindings/message.h"
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#endif
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namespace electron {
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namespace {
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#if BUILDFLAG(ENABLE_PRINT_PREVIEW)
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constexpr char kInvalidUpdatePrintSettingsCall[] =
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"Invalid UpdatePrintSettings Call";
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constexpr char kInvalidSetupScriptedPrintPreviewCall[] =
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"Invalid SetupScriptedPrintPreview Call";
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constexpr char kInvalidShowScriptedPrintPreviewCall[] =
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"Invalid ShowScriptedPrintPreview Call";
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constexpr char kInvalidRequestPrintPreviewCall[] =
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"Invalid RequestPrintPreview Call";
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#endif
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} // namespace
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// This file subclasses printing::PrintViewManagerBase
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// but the implementations are duplicated from
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// components/printing/browser/print_to_pdf/pdf_print_manager.cc.
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PrintViewManagerElectron::PrintViewManagerElectron(
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content::WebContents* web_contents)
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: printing::PrintViewManagerBase(web_contents),
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content::WebContentsUserData<PrintViewManagerElectron>(*web_contents) {}
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PrintViewManagerElectron::~PrintViewManagerElectron() = default;
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// static
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void PrintViewManagerElectron::BindPrintManagerHost(
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mojo::PendingAssociatedReceiver<printing::mojom::PrintManagerHost> receiver,
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content::RenderFrameHost* rfh) {
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auto* web_contents = content::WebContents::FromRenderFrameHost(rfh);
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if (!web_contents)
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return;
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auto* print_manager = PrintViewManagerElectron::FromWebContents(web_contents);
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if (!print_manager)
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return;
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print_manager->BindReceiver(std::move(receiver), rfh);
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}
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// static
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std::string PrintViewManagerElectron::PrintResultToString(PrintResult result) {
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switch (result) {
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case PRINT_SUCCESS:
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return std::string(); // no error message
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case PRINTING_FAILED:
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return "Printing failed";
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case INVALID_PRINTER_SETTINGS:
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return "Show invalid printer settings error";
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case INVALID_MEMORY_HANDLE:
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return "Invalid memory handle";
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case METAFILE_MAP_ERROR:
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return "Map to shared memory error";
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case METAFILE_INVALID_HEADER:
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return "Invalid metafile header";
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case METAFILE_GET_DATA_ERROR:
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return "Get data from metafile error";
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case SIMULTANEOUS_PRINT_ACTIVE:
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return "The previous printing job hasn't finished";
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case PAGE_RANGE_SYNTAX_ERROR:
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return "Page range syntax error";
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case PAGE_RANGE_INVALID_RANGE:
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return "Page range is invalid (start > end)";
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case PAGE_COUNT_EXCEEDED:
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return "Page range exceeds page count";
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default:
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NOTREACHED();
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return "Unknown PrintResult";
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}
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}
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void PrintViewManagerElectron::PrintToPdf(
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content::RenderFrameHost* rfh,
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const std::string& page_ranges,
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printing::mojom::PrintPagesParamsPtr print_pages_params,
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PrintToPDFCallback callback) {
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DCHECK(callback);
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if (callback_) {
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std::move(callback).Run(SIMULTANEOUS_PRINT_ACTIVE,
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base::MakeRefCounted<base::RefCountedString>());
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return;
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}
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if (!rfh->IsRenderFrameLive()) {
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std::move(callback).Run(PRINTING_FAILED,
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base::MakeRefCounted<base::RefCountedString>());
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return;
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}
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absl::variant<printing::PageRanges, print_to_pdf::PageRangeError>
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parsed_ranges = print_to_pdf::TextPageRangesToPageRanges(page_ranges);
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if (absl::holds_alternative<print_to_pdf::PageRangeError>(parsed_ranges)) {
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PrintResult print_result;
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switch (absl::get<print_to_pdf::PageRangeError>(parsed_ranges)) {
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case print_to_pdf::PageRangeError::kSyntaxError:
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print_result = PAGE_RANGE_SYNTAX_ERROR;
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break;
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case print_to_pdf::PageRangeError::kInvalidRange:
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print_result = PAGE_RANGE_INVALID_RANGE;
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break;
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}
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std::move(callback).Run(print_result,
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base::MakeRefCounted<base::RefCountedString>());
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return;
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}
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printing_rfh_ = rfh;
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print_pages_params->pages = absl::get<printing::PageRanges>(parsed_ranges);
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auto cookie = print_pages_params->params->document_cookie;
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set_cookie(cookie);
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headless_jobs_.emplace_back(cookie);
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callback_ = std::move(callback);
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GetPrintRenderFrame(rfh)->PrintWithParams(std::move(print_pages_params));
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}
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void PrintViewManagerElectron::GetDefaultPrintSettings(
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GetDefaultPrintSettingsCallback callback) {
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if (printing_rfh_) {
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LOG(ERROR) << "Scripted print is not supported";
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std::move(callback).Run(printing::mojom::PrintParams::New());
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} else {
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PrintViewManagerBase::GetDefaultPrintSettings(std::move(callback));
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}
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}
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void PrintViewManagerElectron::ScriptedPrint(
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printing::mojom::ScriptedPrintParamsPtr params,
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ScriptedPrintCallback callback) {
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auto entry =
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std::find(headless_jobs_.begin(), headless_jobs_.end(), params->cookie);
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if (entry == headless_jobs_.end()) {
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PrintViewManagerBase::ScriptedPrint(std::move(params), std::move(callback));
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return;
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}
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auto default_param = printing::mojom::PrintPagesParams::New();
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default_param->params = printing::mojom::PrintParams::New();
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LOG(ERROR) << "Scripted print is not supported";
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std::move(callback).Run(std::move(default_param), /*cancelled*/ false);
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}
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void PrintViewManagerElectron::ShowInvalidPrinterSettingsError() {
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ReleaseJob(INVALID_PRINTER_SETTINGS);
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}
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void PrintViewManagerElectron::PrintingFailed(
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int32_t cookie,
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printing::mojom::PrintFailureReason reason) {
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ReleaseJob(reason == printing::mojom::PrintFailureReason::kInvalidPageRange
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? PAGE_COUNT_EXCEEDED
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: PRINTING_FAILED);
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}
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#if BUILDFLAG(ENABLE_PRINT_PREVIEW)
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void PrintViewManagerElectron::UpdatePrintSettings(
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int32_t cookie,
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base::Value::Dict job_settings,
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UpdatePrintSettingsCallback callback) {
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auto entry = std::find(headless_jobs_.begin(), headless_jobs_.end(), cookie);
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if (entry == headless_jobs_.end()) {
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PrintViewManagerBase::UpdatePrintSettings(cookie, std::move(job_settings),
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std::move(callback));
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return;
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}
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mojo::ReportBadMessage(kInvalidUpdatePrintSettingsCall);
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}
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void PrintViewManagerElectron::SetupScriptedPrintPreview(
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SetupScriptedPrintPreviewCallback callback) {
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mojo::ReportBadMessage(kInvalidSetupScriptedPrintPreviewCall);
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}
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void PrintViewManagerElectron::ShowScriptedPrintPreview(
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bool source_is_modifiable) {
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mojo::ReportBadMessage(kInvalidShowScriptedPrintPreviewCall);
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}
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void PrintViewManagerElectron::RequestPrintPreview(
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printing::mojom::RequestPrintPreviewParamsPtr params) {
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mojo::ReportBadMessage(kInvalidRequestPrintPreviewCall);
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}
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void PrintViewManagerElectron::CheckForCancel(int32_t preview_ui_id,
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int32_t request_id,
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CheckForCancelCallback callback) {
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std::move(callback).Run(false);
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}
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#endif // BUILDFLAG(ENABLE_PRINT_PREVIEW)
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void PrintViewManagerElectron::RenderFrameDeleted(
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content::RenderFrameHost* render_frame_host) {
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PrintViewManagerBase::RenderFrameDeleted(render_frame_host);
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if (printing_rfh_ != render_frame_host)
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return;
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if (callback_) {
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std::move(callback_).Run(PRINTING_FAILED,
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base::MakeRefCounted<base::RefCountedString>());
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}
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Reset();
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}
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void PrintViewManagerElectron::DidGetPrintedPagesCount(int32_t cookie,
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uint32_t number_pages) {
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auto entry = std::find(headless_jobs_.begin(), headless_jobs_.end(), cookie);
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if (entry == headless_jobs_.end()) {
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PrintViewManagerBase::DidGetPrintedPagesCount(cookie, number_pages);
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}
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}
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void PrintViewManagerElectron::DidPrintDocument(
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printing::mojom::DidPrintDocumentParamsPtr params,
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DidPrintDocumentCallback callback) {
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auto entry = std::find(headless_jobs_.begin(), headless_jobs_.end(),
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params->document_cookie);
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if (entry == headless_jobs_.end()) {
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PrintViewManagerBase::DidPrintDocument(std::move(params),
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std::move(callback));
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return;
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}
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auto& content = *params->content;
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if (!content.metafile_data_region.IsValid()) {
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ReleaseJob(INVALID_MEMORY_HANDLE);
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std::move(callback).Run(false);
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return;
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}
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base::ReadOnlySharedMemoryMapping map = content.metafile_data_region.Map();
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if (!map.IsValid()) {
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ReleaseJob(METAFILE_MAP_ERROR);
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std::move(callback).Run(false);
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return;
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}
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data_ = std::string(static_cast<const char*>(map.memory()), map.size());
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headless_jobs_.erase(entry);
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std::move(callback).Run(true);
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ReleaseJob(PRINT_SUCCESS);
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}
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void PrintViewManagerElectron::Reset() {
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printing_rfh_ = nullptr;
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callback_.Reset();
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data_.clear();
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}
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void PrintViewManagerElectron::ReleaseJob(PrintResult result) {
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if (callback_) {
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DCHECK(result == PRINT_SUCCESS || data_.empty());
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std::move(callback_).Run(result,
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base::RefCountedString::TakeString(&data_));
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if (printing_rfh_ && printing_rfh_->IsRenderFrameLive()) {
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GetPrintRenderFrame(printing_rfh_)->PrintingDone(result == PRINT_SUCCESS);
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}
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Reset();
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}
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}
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WEB_CONTENTS_USER_DATA_KEY_IMPL(PrintViewManagerElectron);
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} // namespace electron
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