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-rw-r--r--win8/metro_driver/print_handler.h116
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diff --git a/win8/metro_driver/print_handler.h b/win8/metro_driver/print_handler.h
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--- a/win8/metro_driver/print_handler.h
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-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef CHROME_BROWSER_UI_METRO_DRIVER_PRINT_HANDLER_H_
-#define CHROME_BROWSER_UI_METRO_DRIVER_PRINT_HANDLER_H_
-
-#include <windows.media.playto.h>
-#include <windows.graphics.printing.h>
-#include <windows.ui.core.h>
-
-#include "base/synchronization/lock.h"
-#include "base/threading/thread.h"
-#include "win8/metro_driver/print_document_source.h"
-#include "win8/metro_driver/winrt_utils.h"
-
-namespace base {
-
-class Lock;
-
-} // namespace base
-
-namespace metro_driver {
-
-// This class handles the print aspect of the devices charm.
-class PrintHandler {
- public:
- PrintHandler();
- ~PrintHandler();
-
- HRESULT Initialize(winui::Core::ICoreWindow* window);
-
- // Called by the exported C functions.
- static void EnablePrinting(bool printing_enabled);
- static void SetPageCount(size_t page_count);
- static void AddPage(size_t page_number, IStream* metafile_stream);
- static void ShowPrintUI();
-
- private:
- // Callbacks from Metro.
- HRESULT OnPrintRequested(
- wingfx::Printing::IPrintManager* print_mgr,
- wingfx::Printing::IPrintTaskRequestedEventArgs* event_args);
-
- HRESULT OnPrintTaskSourceRequest(
- wingfx::Printing::IPrintTaskSourceRequestedArgs* args);
-
- HRESULT OnCompleted(wingfx::Printing::IPrintTask* task,
- wingfx::Printing::IPrintTaskCompletedEventArgs* args);
- // Utility methods.
- void ClearPrintTask();
- float GetLogicalDpi();
-
- // Callback from Metro and entry point called on lockable thread.
- HRESULT LogicalDpiChanged(IInspectable *sender);
- static void OnLogicalDpiChanged(float dpi);
-
- // Called on the lockable thread to set/release the doc.
- static void SetPrintDocumentSource(
- const mswr::ComPtr<PrintDocumentSource>& print_document_source);
- static void ReleasePrintDocumentSource();
-
- // Called on the lockable thread for the exported C functions.
- static void OnEnablePrinting(bool printing_enabled);
- static void OnSetPageCount(size_t page_count);
- static void OnAddPage(size_t page_number,
- mswr::ComPtr<IStream> metafile_stream);
-
- // Opens the prit device charm. Must be called from the metro thread.
- static void OnShowPrintUI();
-
- mswr::ComPtr<wingfx::Printing::IPrintTask> print_task_;
- EventRegistrationToken print_requested_token_;
- EventRegistrationToken print_completed_token_;
- EventRegistrationToken dpi_change_token_;
-
- mswr::ComPtr<wingfx::Printing::IPrintManager> print_manager_;
- PrintDocumentSource::DirectXContext directx_context_;
-
- // Hack to give access to the Print Document from the C style entry points.
- // This will go away once we can pass a pointer to this interface down to
- // the Chrome Browser as we send the command to print.
- static mswr::ComPtr<PrintDocumentSource> current_document_source_;
-
- // Another hack to enable/disable printing from an exported C function.
- // TODO(mad): Find a better way to do this...
- static bool printing_enabled_;
-
- // This is also a temporary hack until we can pass down the print document
- // to Chrome so it can call directly into it. We need to lock the access to
- // current_document_source_.
- static base::Lock* lock_;
-
- // This thread is used to send blocking jobs
- // out of threads we don't want to block.
- static base::Thread* thread_;
-};
-
-} // namespace metro_driver
-
-// Exported C functions for Chrome to call into the Metro module.
-extern "C" __declspec(dllexport)
-void MetroEnablePrinting(BOOL printing_enabled);
-
-extern "C" __declspec(dllexport)
-void MetroSetPrintPageCount(size_t page_count);
-
-extern "C" __declspec(dllexport)
-void MetroSetPrintPageContent(size_t current_page,
- void* data,
- size_t data_size);
-
-extern "C" __declspec(dllexport)
-void MetroShowPrintUI();
-
-#endif // CHROME_BROWSER_UI_METRO_DRIVER_PRINT_HANDLER_H_