eaf2c61bef
* refactor: use gin in Promise * refactor: separate Promise impl that returns nothing * refactor: use Promise<void> for promise that returns nothing * fix: methods should be able to run on both browser and renderer process * fix: should not pass base::StringPiece across threads * refactor: no more need to use different ResolvePromise for empty Promise * refactor: move Promise to gin_helper
77 lines
2.7 KiB
C++
77 lines
2.7 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 SHELL_BROWSER_PRINTING_PRINT_PREVIEW_MESSAGE_HANDLER_H_
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#define SHELL_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/mojom/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/gin_helper/promise.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 electron {
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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(base::DictionaryValue options,
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gin_helper::Promise<v8::Local<v8::Value>> 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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gin_helper::Promise<v8::Local<v8::Value>> 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, gin_helper::Promise<v8::Local<v8::Value>>>;
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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 electron
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#endif // SHELL_BROWSER_PRINTING_PRINT_PREVIEW_MESSAGE_HANDLER_H_
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