Refactor webview to use //components/printing

android_webview/common/print_messages.h

-// Copyright 2013 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.
-
-// IPC messages for printing.
-// Multiply-included message file, hence no include guard.
-
-// TODO(sgurun) copied from chrome/common. Remove after crbug.com/322276
-
-#include <string>
-#include <vector>
-
-#include "base/memory/shared_memory.h"
-#include "base/values.h"
-#include "ipc/ipc_message_macros.h"
-#include "printing/page_size_margins.h"
-#include "printing/print_job_constants.h"
-#include "third_party/WebKit/public/web/WebPrintScalingOption.h"
-#include "ui/gfx/geometry/rect.h"
-#include "ui/gfx/ipc/gfx_param_traits.h"
-#include "ui/gfx/native_widget_types.h"
-
-#ifndef AW_COMMON_PRINT_MESSAGES_H_
-#define AW_COMMON_PRINT_MESSAGES_H_
-
-struct PrintMsg_Print_Params {
-  PrintMsg_Print_Params();
-  ~PrintMsg_Print_Params();
-
-  // Resets the members of the struct to 0.
-  void Reset();
-
-  gfx::Size page_size;
-  gfx::Size content_size;
-  gfx::Rect printable_area;
-  int margin_top;
-  int margin_left;
-  double dpi;
-  double min_shrink;
-  double max_shrink;
-  int desired_dpi;
-  int document_cookie;
-  bool selection_only;
-  bool supports_alpha_blend;
-  int32 preview_ui_id;
-  int preview_request_id;
-  bool is_first_request;
-  blink::WebPrintScalingOption print_scaling_option;
-  bool print_to_pdf;
-  bool display_header_footer;
-  base::string16 title;
-  base::string16 url;
-  bool should_print_backgrounds;
-};
-
-struct PrintMsg_PrintPages_Params {
-  PrintMsg_PrintPages_Params();
-  ~PrintMsg_PrintPages_Params();
-
-  // Resets the members of the struct to 0.
-  void Reset();
-
-  PrintMsg_Print_Params params;
-  std::vector<int> pages;
-};
-
-struct PrintHostMsg_RequestPrintPreview_Params {
-  PrintHostMsg_RequestPrintPreview_Params();
-  ~PrintHostMsg_RequestPrintPreview_Params();
-  bool is_modifiable;
-  bool webnode_only;
-  bool has_selection;
-  bool selection_only;
-};
-
-#endif  // AW_COMMON_PRINT_MESSAGES_H_
-
-#define IPC_MESSAGE_START PrintMsgStart
-
-IPC_ENUM_TRAITS_MAX_VALUE(printing::MarginType,
-                          printing::MarginType::MARGIN_TYPE_LAST)
-
-IPC_ENUM_TRAITS_MAX_VALUE(
-    blink::WebPrintScalingOption,
-    blink::WebPrintScalingOption::WebPrintScalingOptionLast)
-
-// Parameters for a render request.
-IPC_STRUCT_TRAITS_BEGIN(PrintMsg_Print_Params)
-  // Physical size of the page, including non-printable margins,
-  // in pixels according to dpi.
-  IPC_STRUCT_TRAITS_MEMBER(page_size)
-
-  // In pixels according to dpi_x and dpi_y.
-  IPC_STRUCT_TRAITS_MEMBER(content_size)
-
-  // Physical printable area of the page in pixels according to dpi.
-  IPC_STRUCT_TRAITS_MEMBER(printable_area)
-
-  // The y-offset of the printable area, in pixels according to dpi.
-  IPC_STRUCT_TRAITS_MEMBER(margin_top)
-
-  // The x-offset of the printable area, in pixels according to dpi.
-  IPC_STRUCT_TRAITS_MEMBER(margin_left)
-
-  // Specifies dots per inch.
-  IPC_STRUCT_TRAITS_MEMBER(dpi)
-
-  // Minimum shrink factor. See PrintSettings::min_shrink for more information.
-  IPC_STRUCT_TRAITS_MEMBER(min_shrink)
-
-  // Maximum shrink factor. See PrintSettings::max_shrink for more information.
-  IPC_STRUCT_TRAITS_MEMBER(max_shrink)
-
-  // Desired apparent dpi on paper.
-  IPC_STRUCT_TRAITS_MEMBER(desired_dpi)
-
-  // Cookie for the document to ensure correctness.
-  IPC_STRUCT_TRAITS_MEMBER(document_cookie)
-
-  // Should only print currently selected text.
-  IPC_STRUCT_TRAITS_MEMBER(selection_only)
-
-  // Does the printer support alpha blending?
-  IPC_STRUCT_TRAITS_MEMBER(supports_alpha_blend)
-
-  // *** Parameters below are used only for print preview. ***
-
-  // The print preview ui associated with this request.
-  IPC_STRUCT_TRAITS_MEMBER(preview_ui_id)
-
-  // The id of the preview request.
-  IPC_STRUCT_TRAITS_MEMBER(preview_request_id)
-
-  // True if this is the first preview request.
-  IPC_STRUCT_TRAITS_MEMBER(is_first_request)
-
-  // Specifies the page scaling option for preview printing.
-  IPC_STRUCT_TRAITS_MEMBER(print_scaling_option)
-
-  // True if print to pdf is requested.
-  IPC_STRUCT_TRAITS_MEMBER(print_to_pdf)
-
-  // Specifies if the header and footer should be rendered.
-  IPC_STRUCT_TRAITS_MEMBER(display_header_footer)
-
-  // Title string to be printed as header if requested by the user.
-  IPC_STRUCT_TRAITS_MEMBER(title)
-
-  // URL string to be printed as footer if requested by the user.
-  IPC_STRUCT_TRAITS_MEMBER(url)
-
-  // True if print backgrounds is requested by the user.
-  IPC_STRUCT_TRAITS_MEMBER(should_print_backgrounds)
-IPC_STRUCT_TRAITS_END()
-
-IPC_STRUCT_BEGIN(PrintMsg_PrintPage_Params)
-  // Parameters to render the page as a printed page. It must always be the same
-  // value for all the document.
-  IPC_STRUCT_MEMBER(PrintMsg_Print_Params, params)
-
-  // The page number is the indicator of the square that should be rendered
-  // according to the layout specified in PrintMsg_Print_Params.
-  IPC_STRUCT_MEMBER(int, page_number)
-IPC_STRUCT_END()
-
-IPC_STRUCT_TRAITS_BEGIN(PrintHostMsg_RequestPrintPreview_Params)
-  IPC_STRUCT_TRAITS_MEMBER(is_modifiable)
-  IPC_STRUCT_TRAITS_MEMBER(webnode_only)
-  IPC_STRUCT_TRAITS_MEMBER(has_selection)
-  IPC_STRUCT_TRAITS_MEMBER(selection_only)
-IPC_STRUCT_TRAITS_END()
-
-IPC_STRUCT_TRAITS_BEGIN(printing::PageSizeMargins)
-  IPC_STRUCT_TRAITS_MEMBER(content_width)
-  IPC_STRUCT_TRAITS_MEMBER(content_height)
-  IPC_STRUCT_TRAITS_MEMBER(margin_left)
-  IPC_STRUCT_TRAITS_MEMBER(margin_right)
-  IPC_STRUCT_TRAITS_MEMBER(margin_top)
-  IPC_STRUCT_TRAITS_MEMBER(margin_bottom)
-IPC_STRUCT_TRAITS_END()
-
-IPC_STRUCT_TRAITS_BEGIN(PrintMsg_PrintPages_Params)
-  // Parameters to render the page as a printed page. It must always be the same
-  // value for all the document.
-  IPC_STRUCT_TRAITS_MEMBER(params)
-
-  // If empty, this means a request to render all the printed pages.
-  IPC_STRUCT_TRAITS_MEMBER(pages)
-IPC_STRUCT_TRAITS_END()
-
-// Parameters to describe a rendered document.
-IPC_STRUCT_BEGIN(PrintHostMsg_DidPreviewDocument_Params)
-  // True when we can reuse existing preview data. |metafile_data_handle| and
-  // |data_size| should not be used when this is true.
-  IPC_STRUCT_MEMBER(bool, reuse_existing_data)
-
-  // A shared memory handle to metafile data.
-  IPC_STRUCT_MEMBER(base::SharedMemoryHandle, metafile_data_handle)
-
-  // Size of metafile data.
-  IPC_STRUCT_MEMBER(uint32, data_size)
-
-  // Cookie for the document to ensure correctness.
-  IPC_STRUCT_MEMBER(int, document_cookie)
-
-  // Store the expected pages count.
-  IPC_STRUCT_MEMBER(int, expected_pages_count)
-
-  // Whether the preview can be modified.
-  IPC_STRUCT_MEMBER(bool, modifiable)
-
-  // The id of the preview request.
-  IPC_STRUCT_MEMBER(int, preview_request_id)
-IPC_STRUCT_END()
-
-// Parameters to describe a rendered preview page.
-IPC_STRUCT_BEGIN(PrintHostMsg_DidPreviewPage_Params)
-  // A shared memory handle to metafile data for a draft document of the page.
-  IPC_STRUCT_MEMBER(base::SharedMemoryHandle, metafile_data_handle)
-
-  // Size of metafile data.
-  IPC_STRUCT_MEMBER(uint32, data_size)
-
-  // |page_number| is zero-based and can be |printing::INVALID_PAGE_INDEX| if it
-  // is just a check.
-  IPC_STRUCT_MEMBER(int, page_number)
-
-  // The id of the preview request.
-  IPC_STRUCT_MEMBER(int, preview_request_id)
-IPC_STRUCT_END()
-
-// Parameters sent along with the page count.
-IPC_STRUCT_BEGIN(PrintHostMsg_DidGetPreviewPageCount_Params)
-  // Cookie for the document to ensure correctness.
-  IPC_STRUCT_MEMBER(int, document_cookie)
-
-  // Total page count.
-  IPC_STRUCT_MEMBER(int, page_count)
-
-  // Indicates whether the previewed document is modifiable.
-  IPC_STRUCT_MEMBER(bool, is_modifiable)
-
-  // The id of the preview request.
-  IPC_STRUCT_MEMBER(int, preview_request_id)
-
-  // Indicates whether the existing preview data needs to be cleared or not.
-  IPC_STRUCT_MEMBER(bool, clear_preview_data)
-IPC_STRUCT_END()
-
-// Parameters to describe a rendered page.
-IPC_STRUCT_BEGIN(PrintHostMsg_DidPrintPage_Params)
-  // A shared memory handle to the EMF data. This data can be quite large so a
-  // memory map needs to be used.
-  IPC_STRUCT_MEMBER(base::SharedMemoryHandle, metafile_data_handle)
-
-  // Size of the metafile data.
-  IPC_STRUCT_MEMBER(uint32, data_size)
-
-  // Cookie for the document to ensure correctness.
-  IPC_STRUCT_MEMBER(int, document_cookie)
-
-  // Page number.
-  IPC_STRUCT_MEMBER(int, page_number)
-
-  // Shrink factor used to render this page.
-  IPC_STRUCT_MEMBER(double, actual_shrink)
-
-  // The size of the page the page author specified.
-  IPC_STRUCT_MEMBER(gfx::Size, page_size)
-
-  // The printable area the page author specified.
-  IPC_STRUCT_MEMBER(gfx::Rect, content_area)
-IPC_STRUCT_END()
-
-// Parameters for the IPC message ViewHostMsg_ScriptedPrint
-IPC_STRUCT_BEGIN(PrintHostMsg_ScriptedPrint_Params)
-  IPC_STRUCT_MEMBER(int, cookie)
-  IPC_STRUCT_MEMBER(int, expected_pages_count)
-  IPC_STRUCT_MEMBER(bool, has_selection)
-  IPC_STRUCT_MEMBER(printing::MarginType, margin_type)
-IPC_STRUCT_END()
-
-
-// Messages sent from the browser to the renderer.
-
-// Tells the render view to initiate print preview for the entire document.
-IPC_MESSAGE_ROUTED1(PrintMsg_InitiatePrintPreview, bool /* selection_only */)
-
-// Tells the render frame to initiate printing or print preview for a particular
-// node, depending on which mode the render frame is in.
-IPC_MESSAGE_ROUTED0(PrintMsg_PrintNodeUnderContextMenu)
-
-// Tells the renderer to print the print preview tab's PDF plugin without
-// showing the print dialog. (This is the final step in the print preview
-// workflow.)
-IPC_MESSAGE_ROUTED1(PrintMsg_PrintForPrintPreview,
-                    base::DictionaryValue /* settings */)
-
-// Tells the render view to switch the CSS to print media type, renders every
-// requested pages and switch back the CSS to display media type.
-IPC_MESSAGE_ROUTED0(PrintMsg_PrintPages)
-
-// Tells the render view that printing is done so it can clean up.
-IPC_MESSAGE_ROUTED1(PrintMsg_PrintingDone,
-                    bool /* success */)
-
-// Tells the render view whether scripted printing is blocked or not.
-IPC_MESSAGE_ROUTED1(PrintMsg_SetScriptedPrintingBlocked,
-                    bool /* blocked */)
-
-// Tells the render view to switch the CSS to print media type, renders every
-// requested pages for print preview using the given |settings|. This gets
-// called multiple times as the user updates settings.
-IPC_MESSAGE_ROUTED1(PrintMsg_PrintPreview,
-                    base::DictionaryValue /* settings */)
-
-// Like PrintMsg_PrintPages, but using the print preview document's frame/node.
-IPC_MESSAGE_ROUTED0(PrintMsg_PrintForSystemDialog)
-
-// Tells a renderer to stop blocking script initiated printing.
-IPC_MESSAGE_ROUTED0(PrintMsg_ResetScriptedPrintCount)
-
-// Messages sent from the renderer to the browser.
-
-#if defined(OS_WIN)
-// Duplicates a shared memory handle from the renderer to the browser. Then
-// the renderer can flush the handle.
-IPC_SYNC_MESSAGE_ROUTED1_1(PrintHostMsg_DuplicateSection,
-                           base::SharedMemoryHandle /* renderer handle */,
-                           base::SharedMemoryHandle /* browser handle */)
-#endif
-
-// Check if printing is enabled.
-IPC_SYNC_MESSAGE_ROUTED0_1(PrintHostMsg_IsPrintingEnabled,
-                           bool /* is_enabled */)
-
-// Tells the browser that the renderer is done calculating the number of
-// rendered pages according to the specified settings.
-IPC_MESSAGE_ROUTED2(PrintHostMsg_DidGetPrintedPagesCount,
-                    int /* rendered document cookie */,
-                    int /* number of rendered pages */)
-
-// Sends the document cookie of the current printer query to the browser.
-IPC_MESSAGE_ROUTED1(PrintHostMsg_DidGetDocumentCookie,
-                    int /* rendered document cookie */)
-
-// Tells the browser that the print dialog has been shown.
-IPC_MESSAGE_ROUTED0(PrintHostMsg_DidShowPrintDialog)
-
-// Sends back to the browser the rendered "printed page" that was requested by
-// a ViewMsg_PrintPage message or from scripted printing. The memory handle in
-// this message is already valid in the browser process.
-IPC_MESSAGE_ROUTED1(PrintHostMsg_DidPrintPage,
-                    PrintHostMsg_DidPrintPage_Params /* page content */)
-
-// The renderer wants to know the default print settings.
-IPC_SYNC_MESSAGE_ROUTED0_1(PrintHostMsg_GetDefaultPrintSettings,
-                           PrintMsg_Print_Params /* default_settings */)
-
-// The renderer wants to update the current print settings with new
-// |job_settings|.
-IPC_SYNC_MESSAGE_ROUTED2_1(PrintHostMsg_UpdatePrintSettings,
-                           int /* document_cookie */,
-                           base::DictionaryValue /* job_settings */,
-                           PrintMsg_PrintPages_Params /* current_settings */)
-
-// It's the renderer that controls the printing process when it is generated
-// by javascript. This step is about showing UI to the user to select the
-// final print settings. The output parameter is the same as
-// ViewMsg_PrintPages which is executed implicitly.
-IPC_SYNC_MESSAGE_ROUTED1_1(PrintHostMsg_ScriptedPrint,
-                           PrintHostMsg_ScriptedPrint_Params,
-                           PrintMsg_PrintPages_Params
-                               /* settings chosen by the user*/)
-
-#if defined(OS_ANDROID)
-// Asks the browser to create a temporary file for the renderer to fill
-// in resulting PdfMetafileSkia in printing.
-IPC_SYNC_MESSAGE_CONTROL1_2(PrintHostMsg_AllocateTempFileForPrinting,
-                            int /* render_view_id */,
-                            base::FileDescriptor /* temp file fd */,
-                            int /* fd in browser*/)
-IPC_MESSAGE_CONTROL2(PrintHostMsg_TempFileForPrintingWritten,
-                     int /* render_view_id */,
-                     int /* fd in browser */)
-#endif
-// Asks the browser to do print preview.
-IPC_MESSAGE_ROUTED1(PrintHostMsg_RequestPrintPreview,
-                    PrintHostMsg_RequestPrintPreview_Params /* params */)
-
-// Notify the browser the number of pages in the print preview document.
-IPC_MESSAGE_ROUTED1(PrintHostMsg_DidGetPreviewPageCount,
-                    PrintHostMsg_DidGetPreviewPageCount_Params /* params */)
-
-// Notify the browser of the default page layout according to the currently
-// selected printer and page size.
-// |printable_area_in_points| Specifies the printable area in points.
-// |has_custom_page_size_style| is true when the printing frame has a custom
-// page size css otherwise false.
-IPC_MESSAGE_ROUTED3(PrintHostMsg_DidGetDefaultPageLayout,
-                    printing::PageSizeMargins /* page layout in points */,
-                    gfx::Rect /* printable area in points */,
-                    bool /* has custom page size style */)
-
-// Notify the browser a print preview page has been rendered.
-IPC_MESSAGE_ROUTED1(PrintHostMsg_DidPreviewPage,
-                    PrintHostMsg_DidPreviewPage_Params /* params */)
-
-// Asks the browser whether the print preview has been cancelled.
-IPC_SYNC_MESSAGE_ROUTED2_1(PrintHostMsg_CheckForCancel,
-                           int32 /* PrintPreviewUI ID */,
-                           int /* request id */,
-                           bool /* print preview cancelled */)
-
-// Sends back to the browser the complete rendered document (non-draft mode,
-// used for printing) that was requested by a PrintMsg_PrintPreview message.
-// The memory handle in this message is already valid in the browser process.
-IPC_MESSAGE_ROUTED1(PrintHostMsg_MetafileReadyForPrinting,
-                    PrintHostMsg_DidPreviewDocument_Params /* params */)
-
-// Tell the browser printing failed.
-IPC_MESSAGE_ROUTED1(PrintHostMsg_PrintingFailed,
-                    int /* document cookie */)
-
-// Tell the browser print preview failed.
-IPC_MESSAGE_ROUTED1(PrintHostMsg_PrintPreviewFailed,
-                    int /* document cookie */)
-
-// Tell the browser print preview was cancelled.
-IPC_MESSAGE_ROUTED1(PrintHostMsg_PrintPreviewCancelled,
-                    int /* document cookie */)
-
-// Tell the browser print preview found the selected printer has invalid
-// settings (which typically caused by disconnected network printer or printer
-// driver is bogus).
-IPC_MESSAGE_ROUTED1(PrintHostMsg_PrintPreviewInvalidPrinterSettings,
-                    int /* document cookie */)
-
-// Run a nested message loop in the renderer until print preview for
-// window.print() finishes.
-IPC_SYNC_MESSAGE_ROUTED0_0(PrintHostMsg_SetupScriptedPrintPreview)
-
-// Tell the browser to show the print preview, when the document is sufficiently
-// loaded such that the renderer can determine whether it is modifiable or not.
-IPC_MESSAGE_ROUTED1(PrintHostMsg_ShowScriptedPrintPreview,
-                    bool /* is_modifiable */)
-
-// Notify the browser that the PDF in the initiator renderer has disabled print
-// scaling option.
-IPC_MESSAGE_ROUTED0(PrintHostMsg_PrintPreviewScalingDisabled)