Index: win8/metro_driver/print_handler.h |
diff --git a/win8/metro_driver/print_handler.h b/win8/metro_driver/print_handler.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..f0779cf2ad8417d30784e315fc76243a4159ec79 |
--- /dev/null |
+++ b/win8/metro_driver/print_handler.h |
@@ -0,0 +1,116 @@ |
+// 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_ |