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Add printToPDF Implementation.

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This commit is contained in:
Haojian Wu 2015-05-31 11:01:35 +08:00
parent b360f7d86a
commit 7ffa7042b1
10 changed files with 1112 additions and 2 deletions
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85
chromium_src/chrome/common/print_messages.h
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@ -46,7 +46,9 @@ struct PrintMsg_Print_Params {
int document_cookie;
bool selection_only;
bool supports_alpha_blend;
int preview_request_id;
blink::WebPrintScalingOption print_scaling_option;
bool print_to_pdf;
base::string16 title;
base::string16 url;
bool should_print_backgrounds;
@ -185,6 +187,61 @@ IPC_STRUCT_BEGIN(PrintHostMsg_ScriptedPrint_Params)
IPC_STRUCT_MEMBER(printing::MarginType, margin_type)
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 document.
IPC_STRUCT_BEGIN(PrintHostMsg_DidPreviewDocument_Params)
// 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()
// Messages sent from the browser to the renderer.
@ -198,6 +255,12 @@ IPC_MESSAGE_ROUTED2(PrintMsg_PrintPages,
IPC_MESSAGE_ROUTED1(PrintMsg_PrintingDone,
bool /* success */)
// 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 */)
// Messages sent from the renderer to the browser.
#if defined(OS_WIN)
@ -231,6 +294,14 @@ IPC_MESSAGE_ROUTED1(PrintHostMsg_DidPrintPage,
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_2(PrintHostMsg_UpdatePrintSettings,
int /* document_cookie */,
base::DictionaryValue /* job_settings */,
PrintMsg_PrintPages_Params /* current_settings */,
bool /* canceled */)
// 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
@ -247,6 +318,20 @@ IPC_MESSAGE_ROUTED0(PrintHostMsg_ShowInvalidPrinterSettingsError)
IPC_MESSAGE_ROUTED1(PrintHostMsg_PrintingFailed,
int /* document cookie */)
// Notify the browser a print preview page has been rendered.
IPC_MESSAGE_ROUTED1(PrintHostMsg_DidPreviewPage,
PrintHostMsg_DidPreviewPage_Params /* params */)
// 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 */)
// Notify the browser the number of pages in the print preview document.
IPC_MESSAGE_ROUTED1(PrintHostMsg_DidGetPreviewPageCount,
PrintHostMsg_DidGetPreviewPageCount_Params /* params */)
#if defined(OS_WIN)
// Tell the utility process to start rendering the given PDF into a metafile.