printing/printing_context_win.h

   1 // Copyright 2011 The Chromium Authors
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef PRINTING_PRINTING_CONTEXT_WIN_H_
   6 #define PRINTING_PRINTING_CONTEXT_WIN_H_
   7
   8 #include <windows.h>
   9
  10 #include <memory>
  11 #include <string>
  12
  13 #include "printing/mojom/print.mojom.h"
  14 #include "printing/printing_context.h"
  15 #include "ui/gfx/native_widget_types.h"
  16
  17 namespace printing {
  18
  19 class PrintSettings;
  20
  21 class COMPONENT_EXPORT(PRINTING) PrintingContextWin : public PrintingContext {
  22  public:
  23   explicit PrintingContextWin(Delegate* delegate);
  24   PrintingContextWin(const PrintingContextWin&) = delete;
  25   PrintingContextWin& operator=(const PrintingContextWin&) = delete;
  26   ~PrintingContextWin() override;
  27
  28   // PrintingContext implementation.
  29   void AskUserForSettings(int max_pages,
  30                           bool has_selection,
  31                           bool is_scripted,
  32                           PrintSettingsCallback callback) override;
  33   mojom::ResultCode UseDefaultSettings() override;
  34   gfx::Size GetPdfPaperSizeDeviceUnits() override;
  35   mojom::ResultCode UpdatePrinterSettings(
  36       const PrinterSettings& printer_settings) override;
  37   mojom::ResultCode NewDocument(const std::u16string& document_name) override;
  38   mojom::ResultCode RenderPage(const PrintedPage& page,
  39                                const PageSetup& page_setup) override;
  40   mojom::ResultCode PrintDocument(const MetafilePlayer& metafile,
  41                                   const PrintSettings& settings,
  42                                   uint32_t num_pages) override;
  43   mojom::ResultCode DocumentDone() override;
  44   void Cancel() override;
  45   void ReleaseContext() override;
  46   printing::NativeDrawingContext context() const override;
  47   mojom::ResultCode InitWithSettingsForTest(
  48       std::unique_ptr<PrintSettings> settings) override;
  49
  50  protected:
  51   static HWND GetRootWindow(gfx::NativeView view);
  52
  53   // Reads the settings from the selected device context. Updates settings_ and
  54   // its margins.
  55   virtual mojom::ResultCode InitializeSettings(const std::wstring& device_name,
  56                                                DEVMODE* dev_mode);
  57
  58   // PrintingContext implementation.
  59   mojom::ResultCode OnError() override;
  60
  61   void set_context(HDC context) { context_ = context; }
  62
  63  private:
  64   // Used in response to the user canceling the printing.
  65   static BOOL CALLBACK AbortProc(HDC hdc, int nCode);
  66
  67   // The selected printer context.
  68   HDC context_;
  69 };
  70
  71 }  // namespace printing
  72
  73 #endif  // PRINTING_PRINTING_CONTEXT_WIN_H_