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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_PRINTING_BROWSER_PRINT_MANAGER_H_
#define COMPONENTS_PRINTING_BROWSER_PRINT_MANAGER_H_
#include <map>
#include <memory>
#include "build/build_config.h"
#include "components/printing/common/print.mojom.h"
#include "content/public/browser/render_frame_host_receiver_set.h"
#include "content/public/browser/web_contents_observer.h"
#include "mojo/public/cpp/bindings/associated_remote.h"
#include "printing/buildflags/buildflags.h"
#if BUILDFLAG(IS_ANDROID)
#include <utility>
#include "base/functional/callback.h"
#endif
namespace printing {
class PrintManager : public content::WebContentsObserver,
public mojom::PrintManagerHost {
public:
PrintManager(const PrintManager&) = delete;
PrintManager& operator=(const PrintManager&) = delete;
~PrintManager() override;
void BindReceiver(
mojo::PendingAssociatedReceiver<mojom::PrintManagerHost> receiver,
content::RenderFrameHost* rfh);
#if BUILDFLAG(IS_ANDROID)
// TODO(timvolodine): consider introducing PrintManagerAndroid (crbug/500960)
using PdfWritingDoneCallback =
base::RepeatingCallback<void(int /* page count */)>;
virtual void PdfWritingDone(int page_count) = 0;
#endif
// printing::mojom::PrintManagerHost:
void DidGetPrintedPagesCount(int32_t cookie, uint32_t number_pages) override;
void DidPrintDocument(mojom::DidPrintDocumentParamsPtr params,
DidPrintDocumentCallback callback) override;
void IsPrintingEnabled(IsPrintingEnabledCallback callback) override;
void DidShowPrintDialog() override;
void PrintingFailed(int32_t cookie,
mojom::PrintFailureReason reason) override;
void ClearPrintRenderFramesForTesting();
protected:
explicit PrintManager(content::WebContents* contents);
// Helper method to determine if PrintRenderFrame associated remote interface
// is still connected.
bool IsPrintRenderFrameConnected(content::RenderFrameHost* rfh) const;
// Helper method to fetch the PrintRenderFrame associated remote interface
// pointer.
const mojo::AssociatedRemote<printing::mojom::PrintRenderFrame>&
GetPrintRenderFrame(content::RenderFrameHost* rfh);
// Returns the RenderFrameHost currently targeted by message dispatch.
content::RenderFrameHost* GetCurrentTargetFrame();
content::RenderFrameHostReceiverSet<printing::mojom::PrintManagerHost>&
print_manager_host_receivers_for_testing() {
return print_manager_host_receivers_;
}
// Terminates or cancels the print job if one was pending.
void PrintingRenderFrameDeleted();
bool IsValidCookie(int cookie) const;
// content::WebContentsObserver:
void RenderFrameDeleted(content::RenderFrameHost* render_frame_host) override;
uint32_t number_pages() const { return number_pages_; }
int cookie() const { return cookie_; }
void set_cookie(int cookie) { cookie_ = cookie; }
#if BUILDFLAG(IS_ANDROID)
PdfWritingDoneCallback pdf_writing_done_callback() const {
return pdf_writing_done_callback_;
}
void set_pdf_writing_done_callback(PdfWritingDoneCallback callback) {
pdf_writing_done_callback_ = std::move(callback);
}
#endif
private:
uint32_t number_pages_ = 0; // Number of pages to print in the print job.
int cookie_ = 0; // The current document cookie.
// Holds RenderFrameHost-associated mojo receivers.
content::RenderFrameHostReceiverSet<printing::mojom::PrintManagerHost>
print_manager_host_receivers_;
#if BUILDFLAG(IS_ANDROID)
// Callback to execute when done writing pdf.
PdfWritingDoneCallback pdf_writing_done_callback_;
#endif
// Stores a PrintRenderFrame associated remote with the RenderFrameHost used
// to bind it. The PrintRenderFrame is used to transmit mojo interface method
// calls to the associated receiver.
std::map<content::RenderFrameHost*,
mojo::AssociatedRemote<printing::mojom::PrintRenderFrame>>
print_render_frames_;
};
} // namespace printing
#endif // COMPONENTS_PRINTING_BROWSER_PRINT_MANAGER_H_
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