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			70 lines
		
	
	
		
			2.4 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			70 lines
		
	
	
		
			2.4 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef CEF_LIBCEF_BROWSER_PRINTING_PRINT_VIEW_MANAGER_H_
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#define CEF_LIBCEF_BROWSER_PRINTING_PRINT_VIEW_MANAGER_H_
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#include "include/internal/cef_types_wrappers.h"
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#include "libcef/browser/printing/print_view_manager_base.h"
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#include "base/macros.h"
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#include "content/public/browser/web_contents_user_data.h"
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namespace content {
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class RenderFrameHost;
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class RenderProcessHost;
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}
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struct PrintHostMsg_DidPreviewDocument_Params;
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struct PrintHostMsg_RequestPrintPreview_Params;
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namespace printing {
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// Manages the print commands for a WebContents.
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class CefPrintViewManager
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    : public CefPrintViewManagerBase,
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      public content::WebContentsUserData<CefPrintViewManager> {
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 public:
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  ~CefPrintViewManager() override;
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  // Callback executed on PDF printing completion.
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  typedef base::Callback<void(bool /*ok*/)> PdfPrintCallback;
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  // Print the current document to a PDF file. Execute |callback| on completion.
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  bool PrintToPDF(content::RenderFrameHost* rfh,
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                  const base::FilePath& path,
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                  const CefPdfPrintSettings& settings,
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                  const PdfPrintCallback& callback);
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  // content::WebContentsObserver implementation.
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  void RenderFrameDeleted(content::RenderFrameHost* render_frame_host) override;
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  void NavigationStopped() override;
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  void RenderProcessGone(base::TerminationStatus status) override;
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  bool OnMessageReceived(const IPC::Message& message,
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                         content::RenderFrameHost* render_frame_host) override;
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 private:
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  explicit CefPrintViewManager(content::WebContents* web_contents);
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  friend class content::WebContentsUserData<CefPrintViewManager>;
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  // IPC Message handlers.
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  void OnDidShowPrintDialog(content::RenderFrameHost* rfh);
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  void OnRequestPrintPreview(const PrintHostMsg_RequestPrintPreview_Params&);
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  void OnMetafileReadyForPrinting(
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      const PrintHostMsg_DidPreviewDocument_Params&);
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  void TerminatePdfPrintJob();
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  // Used for printing to PDF. Only accessed on the browser process UI thread.
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  int next_pdf_request_id_ = -1;
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  struct PdfPrintState;
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  std::unique_ptr<PdfPrintState> pdf_print_state_;
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  DISALLOW_COPY_AND_ASSIGN(CefPrintViewManager);
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};
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}  // namespace printing
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#endif  // CEF_LIBCEF_BROWSER_PRINTING_PRINT_VIEW_MANAGER_H_
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