322 lines
12 KiB
C++
322 lines
12 KiB
C++
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// IPC messages for printing.
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// Multiply-included message file, hence no include guard.
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#include <string>
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#include <vector>
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#include "base/memory/shared_memory.h"
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#include "base/values.h"
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#include "ipc/ipc_message_macros.h"
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#include "printing/page_size_margins.h"
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#include "printing/print_job_constants.h"
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#include "third_party/WebKit/public/web/WebPrintScalingOption.h"
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#include "ui/gfx/native_widget_types.h"
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#include "ui/gfx/geometry/rect.h"
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#if defined(OS_WIN)
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#include "ipc/ipc_platform_file.h"
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#include "printing/backend/print_backend.h"
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#include "printing/page_range.h"
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#include "printing/pdf_render_settings.h"
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#endif
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#ifndef CHROME_COMMON_PRINT_MESSAGES_H_
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#define CHROME_COMMON_PRINT_MESSAGES_H_
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struct PrintMsg_Print_Params {
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PrintMsg_Print_Params();
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~PrintMsg_Print_Params();
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// Resets the members of the struct to 0.
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void Reset();
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gfx::Size page_size;
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gfx::Size content_size;
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gfx::Rect printable_area;
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int margin_top;
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int margin_left;
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double dpi;
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double min_shrink;
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double max_shrink;
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int desired_dpi;
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int document_cookie;
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bool selection_only;
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bool supports_alpha_blend;
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int preview_request_id;
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blink::WebPrintScalingOption print_scaling_option;
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bool print_to_pdf;
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base::string16 title;
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base::string16 url;
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bool should_print_backgrounds;
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};
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struct PrintMsg_PrintPages_Params {
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PrintMsg_PrintPages_Params();
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~PrintMsg_PrintPages_Params();
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// Resets the members of the struct to 0.
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void Reset();
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PrintMsg_Print_Params params;
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std::vector<int> pages;
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};
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#endif // CHROME_COMMON_PRINT_MESSAGES_H_
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#define IPC_MESSAGE_START PrintMsgStart
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IPC_ENUM_TRAITS_MAX_VALUE(printing::MarginType,
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printing::MARGIN_TYPE_LAST)
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IPC_ENUM_TRAITS_MAX_VALUE(blink::WebPrintScalingOption,
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blink::WebPrintScalingOptionLast)
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// Parameters for a render request.
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IPC_STRUCT_TRAITS_BEGIN(PrintMsg_Print_Params)
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// Physical size of the page, including non-printable margins,
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// in pixels according to dpi.
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IPC_STRUCT_TRAITS_MEMBER(page_size)
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// In pixels according to dpi_x and dpi_y.
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IPC_STRUCT_TRAITS_MEMBER(content_size)
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// Physical printable area of the page in pixels according to dpi.
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IPC_STRUCT_TRAITS_MEMBER(printable_area)
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// The y-offset of the printable area, in pixels according to dpi.
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IPC_STRUCT_TRAITS_MEMBER(margin_top)
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// The x-offset of the printable area, in pixels according to dpi.
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IPC_STRUCT_TRAITS_MEMBER(margin_left)
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// Specifies dots per inch.
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IPC_STRUCT_TRAITS_MEMBER(dpi)
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// Minimum shrink factor. See PrintSettings::min_shrink for more information.
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IPC_STRUCT_TRAITS_MEMBER(min_shrink)
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// Maximum shrink factor. See PrintSettings::max_shrink for more information.
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IPC_STRUCT_TRAITS_MEMBER(max_shrink)
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// Desired apparent dpi on paper.
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IPC_STRUCT_TRAITS_MEMBER(desired_dpi)
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// Cookie for the document to ensure correctness.
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IPC_STRUCT_TRAITS_MEMBER(document_cookie)
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// Should only print currently selected text.
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IPC_STRUCT_TRAITS_MEMBER(selection_only)
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// Does the printer support alpha blending?
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IPC_STRUCT_TRAITS_MEMBER(supports_alpha_blend)
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// Specifies the page scaling option for preview printing.
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IPC_STRUCT_TRAITS_MEMBER(print_scaling_option)
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// Title string to be printed as header if requested by the user.
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IPC_STRUCT_TRAITS_MEMBER(title)
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// URL string to be printed as footer if requested by the user.
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IPC_STRUCT_TRAITS_MEMBER(url)
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// True if print backgrounds is requested by the user.
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IPC_STRUCT_TRAITS_MEMBER(should_print_backgrounds)
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IPC_STRUCT_TRAITS_END()
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IPC_STRUCT_BEGIN(PrintMsg_PrintPage_Params)
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// Parameters to render the page as a printed page. It must always be the same
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// value for all the document.
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IPC_STRUCT_MEMBER(PrintMsg_Print_Params, params)
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// The page number is the indicator of the square that should be rendered
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// according to the layout specified in PrintMsg_Print_Params.
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IPC_STRUCT_MEMBER(int, page_number)
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IPC_STRUCT_END()
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IPC_STRUCT_TRAITS_BEGIN(printing::PageSizeMargins)
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IPC_STRUCT_TRAITS_MEMBER(content_width)
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IPC_STRUCT_TRAITS_MEMBER(content_height)
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IPC_STRUCT_TRAITS_MEMBER(margin_left)
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IPC_STRUCT_TRAITS_MEMBER(margin_right)
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IPC_STRUCT_TRAITS_MEMBER(margin_top)
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IPC_STRUCT_TRAITS_MEMBER(margin_bottom)
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IPC_STRUCT_TRAITS_END()
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IPC_STRUCT_TRAITS_BEGIN(PrintMsg_PrintPages_Params)
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// Parameters to render the page as a printed page. It must always be the same
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// value for all the document.
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IPC_STRUCT_TRAITS_MEMBER(params)
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// If empty, this means a request to render all the printed pages.
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IPC_STRUCT_TRAITS_MEMBER(pages)
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IPC_STRUCT_TRAITS_END()
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// Parameters to describe a rendered page.
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IPC_STRUCT_BEGIN(PrintHostMsg_DidPrintPage_Params)
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// A shared memory handle to the EMF data. This data can be quite large so a
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// memory map needs to be used.
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IPC_STRUCT_MEMBER(base::SharedMemoryHandle, metafile_data_handle)
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// Size of the metafile data.
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IPC_STRUCT_MEMBER(uint32, data_size)
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// Cookie for the document to ensure correctness.
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IPC_STRUCT_MEMBER(int, document_cookie)
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// Page number.
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IPC_STRUCT_MEMBER(int, page_number)
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// Shrink factor used to render this page.
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IPC_STRUCT_MEMBER(double, actual_shrink)
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// The size of the page the page author specified.
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IPC_STRUCT_MEMBER(gfx::Size, page_size)
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// The printable area the page author specified.
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IPC_STRUCT_MEMBER(gfx::Rect, content_area)
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IPC_STRUCT_END()
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// Parameters for the IPC message ViewHostMsg_ScriptedPrint
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IPC_STRUCT_BEGIN(PrintHostMsg_ScriptedPrint_Params)
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IPC_STRUCT_MEMBER(int, cookie)
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IPC_STRUCT_MEMBER(int, expected_pages_count)
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IPC_STRUCT_MEMBER(bool, has_selection)
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IPC_STRUCT_MEMBER(printing::MarginType, margin_type)
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IPC_STRUCT_END()
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// Parameters to describe a rendered document.
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IPC_STRUCT_BEGIN(PrintHostMsg_DidPreviewDocument_Params)
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// A shared memory handle to metafile data.
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IPC_STRUCT_MEMBER(base::SharedMemoryHandle, metafile_data_handle)
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// Size of metafile data.
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IPC_STRUCT_MEMBER(uint32, data_size)
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// Cookie for the document to ensure correctness.
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IPC_STRUCT_MEMBER(int, document_cookie)
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// Store the expected pages count.
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IPC_STRUCT_MEMBER(int, expected_pages_count)
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// Whether the preview can be modified.
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IPC_STRUCT_MEMBER(bool, modifiable)
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// The id of the preview request.
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IPC_STRUCT_MEMBER(int, preview_request_id)
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IPC_STRUCT_END()
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// Messages sent from the browser to the renderer.
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// Tells the render view to switch the CSS to print media type, renders every
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// requested pages and switch back the CSS to display media type.
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IPC_MESSAGE_ROUTED2(PrintMsg_PrintPages,
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bool /* silent print */,
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bool /* print page's background */)
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// Tells the render view that printing is done so it can clean up.
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IPC_MESSAGE_ROUTED1(PrintMsg_PrintingDone,
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bool /* success */)
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// Tells the render view to switch the CSS to print media type, renders every
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// requested pages for print preview using the given |settings|. This gets
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// called multiple times as the user updates settings.
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IPC_MESSAGE_ROUTED1(PrintMsg_PrintPreview,
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base::DictionaryValue /* settings */)
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// Messages sent from the renderer to the browser.
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#if defined(OS_WIN)
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// Duplicates a shared memory handle from the renderer to the browser. Then
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// the renderer can flush the handle.
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IPC_SYNC_MESSAGE_ROUTED1_1(PrintHostMsg_DuplicateSection,
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base::SharedMemoryHandle /* renderer handle */,
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base::SharedMemoryHandle /* browser handle */)
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#endif
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// Tells the browser that the renderer is done calculating the number of
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// rendered pages according to the specified settings.
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IPC_MESSAGE_ROUTED2(PrintHostMsg_DidGetPrintedPagesCount,
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int /* rendered document cookie */,
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int /* number of rendered pages */)
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// Sends the document cookie of the current printer query to the browser.
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IPC_MESSAGE_ROUTED1(PrintHostMsg_DidGetDocumentCookie,
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int /* rendered document cookie */)
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// Tells the browser that the print dialog has been shown.
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IPC_MESSAGE_ROUTED0(PrintHostMsg_DidShowPrintDialog)
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// Sends back to the browser the rendered "printed page" that was requested by
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// a ViewMsg_PrintPage message or from scripted printing. The memory handle in
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// this message is already valid in the browser process.
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IPC_MESSAGE_ROUTED1(PrintHostMsg_DidPrintPage,
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PrintHostMsg_DidPrintPage_Params /* page content */)
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// The renderer wants to know the default print settings.
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IPC_SYNC_MESSAGE_ROUTED0_1(PrintHostMsg_GetDefaultPrintSettings,
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PrintMsg_Print_Params /* default_settings */)
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// The renderer wants to update the current print settings with new
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// |job_settings|.
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IPC_SYNC_MESSAGE_ROUTED2_2(PrintHostMsg_UpdatePrintSettings,
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int /* document_cookie */,
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base::DictionaryValue /* job_settings */,
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PrintMsg_PrintPages_Params /* current_settings */,
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bool /* canceled */)
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// It's the renderer that controls the printing process when it is generated
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// by javascript. This step is about showing UI to the user to select the
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// final print settings. The output parameter is the same as
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// ViewMsg_PrintPages which is executed implicitly.
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IPC_SYNC_MESSAGE_ROUTED1_1(PrintHostMsg_ScriptedPrint,
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PrintHostMsg_ScriptedPrint_Params,
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PrintMsg_PrintPages_Params
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/* settings chosen by the user*/)
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// This is sent when there are invalid printer settings.
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IPC_MESSAGE_ROUTED0(PrintHostMsg_ShowInvalidPrinterSettingsError)
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// Tell the browser printing failed.
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IPC_MESSAGE_ROUTED1(PrintHostMsg_PrintingFailed,
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int /* document cookie */)
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// Sends back to the browser the complete rendered document (non-draft mode,
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// used for printing) that was requested by a PrintMsg_PrintPreview message.
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// The memory handle in this message is already valid in the browser process.
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IPC_MESSAGE_ROUTED1(PrintHostMsg_MetafileReadyForPrinting,
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PrintHostMsg_DidPreviewDocument_Params /* params */)
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IPC_MESSAGE_ROUTED2(PrintHostMsg_PrintPreviewFailed,
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int /* document cookie */,
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int /* request_id */);
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#if defined(OS_WIN)
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// Tell the utility process to start rendering the given PDF into a metafile.
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// Utility process would be alive until
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// ChromeUtilityMsg_RenderPDFPagesToMetafiles_Stop message.
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IPC_MESSAGE_CONTROL2(ChromeUtilityMsg_RenderPDFPagesToMetafiles,
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IPC::PlatformFileForTransit, /* input_file */
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printing::PdfRenderSettings /* settings */)
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// Requests conversion of the next page.
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IPC_MESSAGE_CONTROL2(ChromeUtilityMsg_RenderPDFPagesToMetafiles_GetPage,
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int /* page_number */,
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IPC::PlatformFileForTransit /* output_file */)
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// Requests utility process to stop conversion and exit.
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IPC_MESSAGE_CONTROL0(ChromeUtilityMsg_RenderPDFPagesToMetafiles_Stop)
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// Reply when the utility process loaded PDF. |page_count| is 0, if loading
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// failed.
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IPC_MESSAGE_CONTROL1(ChromeUtilityHostMsg_RenderPDFPagesToMetafiles_PageCount,
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int /* page_count */)
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// Reply when the utility process rendered the PDF page.
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IPC_MESSAGE_CONTROL2(ChromeUtilityHostMsg_RenderPDFPagesToMetafiles_PageDone,
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bool /* success */,
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float /* scale_factor */)
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#endif
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