76 lines
2.6 KiB
C++
76 lines
2.6 KiB
C++
// Copyright (c) 2018 GitHub, Inc.
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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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#ifndef ATOM_BROWSER_PRINTING_PRINT_PREVIEW_MESSAGE_HANDLER_H_
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#define ATOM_BROWSER_PRINTING_PRINT_PREVIEW_MESSAGE_HANDLER_H_
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#include <map>
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#include "base/memory/ref_counted_memory.h"
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#include "base/memory/weak_ptr.h"
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#include "components/services/pdf_compositor/public/interfaces/pdf_compositor.mojom.h"
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#include "content/public/browser/web_contents_observer.h"
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#include "content/public/browser/web_contents_user_data.h"
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#include "shell/common/promise_util.h"
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#include "v8/include/v8.h"
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struct PrintHostMsg_DidPreviewDocument_Params;
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struct PrintHostMsg_PreviewIds;
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namespace content {
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class RenderFrameHost;
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}
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namespace atom {
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// Manages the print preview handling for a WebContents.
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class PrintPreviewMessageHandler
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: public content::WebContentsObserver,
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public content::WebContentsUserData<PrintPreviewMessageHandler> {
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public:
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~PrintPreviewMessageHandler() override;
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void PrintToPDF(const base::DictionaryValue& options, util::Promise promise);
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protected:
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// content::WebContentsObserver implementation.
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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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friend class content::WebContentsUserData<PrintPreviewMessageHandler>;
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explicit PrintPreviewMessageHandler(content::WebContents* web_contents);
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void OnMetafileReadyForPrinting(
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content::RenderFrameHost* render_frame_host,
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const PrintHostMsg_DidPreviewDocument_Params& params,
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const PrintHostMsg_PreviewIds& ids);
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void OnCompositePdfDocumentDone(const PrintHostMsg_PreviewIds& ids,
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printing::mojom::PdfCompositor::Status status,
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base::ReadOnlySharedMemoryRegion region);
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void OnPrintPreviewFailed(int document_cookie,
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const PrintHostMsg_PreviewIds& ids);
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void OnPrintPreviewCancelled(int document_cookie,
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const PrintHostMsg_PreviewIds& ids);
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util::Promise GetPromise(int request_id);
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void ResolvePromise(int request_id,
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scoped_refptr<base::RefCountedMemory> data_bytes);
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void RejectPromise(int request_id);
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using PromiseMap = std::map<int, atom::util::Promise>;
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PromiseMap promise_map_;
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base::WeakPtrFactory<PrintPreviewMessageHandler> weak_ptr_factory_;
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WEB_CONTENTS_USER_DATA_KEY_DECL();
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DISALLOW_COPY_AND_ASSIGN(PrintPreviewMessageHandler);
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};
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} // namespace atom
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#endif // ATOM_BROWSER_PRINTING_PRINT_PREVIEW_MESSAGE_HANDLER_H_
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