103 lines
3.9 KiB
C++
103 lines
3.9 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/printing/common/print.mojom.h"
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#include "components/services/print_compositor/public/mojom/print_compositor.mojom.h"
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#include "content/public/browser/web_contents_user_data.h"
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#include "mojo/public/cpp/bindings/associated_receiver.h"
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#include "mojo/public/cpp/bindings/associated_remote.h"
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#include "printing/mojom/print.mojom.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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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 printing::mojom::PrintPreviewUI,
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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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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 OnCompositeDocumentToPdfDone(
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int32_t request_id,
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printing::mojom::PrintCompositor::Status status,
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base::ReadOnlySharedMemoryRegion region);
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void OnPrepareForDocumentToPdfDone(
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int32_t request_id,
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printing::mojom::PrintCompositor::Status status);
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void OnCompositePdfPageDone(int page_number,
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int document_cookie,
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int32_t request_id,
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printing::mojom::PrintCompositor::Status status,
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base::ReadOnlySharedMemoryRegion region);
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// printing::mojo::PrintPreviewUI:
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void SetOptionsFromDocument(
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const printing::mojom::OptionsFromDocumentParamsPtr params,
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int32_t request_id) override {}
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void PrintPreviewFailed(int32_t document_cookie, int32_t request_id) override;
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void PrintPreviewCancelled(int32_t document_cookie,
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int32_t request_id) override;
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void PrinterSettingsInvalid(int32_t document_cookie,
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int32_t request_id) override {}
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void DidPrepareDocumentForPreview(int32_t document_cookie,
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int32_t request_id) override;
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void DidPreviewPage(printing::mojom::DidPreviewPageParamsPtr params,
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int32_t request_id) override;
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void MetafileReadyForPrinting(
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printing::mojom::DidPreviewDocumentParamsPtr params,
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int32_t request_id) override;
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void DidGetDefaultPageLayout(
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printing::mojom::PageSizeMarginsPtr page_layout_in_points,
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const gfx::Rect& printable_area_in_points,
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bool has_custom_page_size_style,
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int32_t request_id) override {}
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void DidStartPreview(printing::mojom::DidStartPreviewParamsPtr params,
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int32_t request_id) override {}
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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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content::WebContents* web_contents_ = nullptr;
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mojo::AssociatedRemote<printing::mojom::PrintRenderFrame> print_render_frame_;
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mojo::AssociatedReceiver<printing::mojom::PrintPreviewUI> receiver_{this};
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base::WeakPtrFactory<PrintPreviewMessageHandler> weak_ptr_factory_{this};
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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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