Printing selection from context menu.

chrome/common/print_messages.h

 // 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.
 
 // IPC messages for printing.
 // Multiply-included message file, hence no include guard.
 
 #include <string>
 #include <vector>
 
@@ skipping 44 matching lines @@
   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  // CHROME_COMMON_PRINT_MESSAGES_H_
 
 #define IPC_MESSAGE_START PrintMsgStart
 
 IPC_ENUM_TRAITS(printing::MarginType)
 IPC_ENUM_TRAITS(WebKit::WebPrintScalingOption)
 
 // Parameters for a render request.
 IPC_STRUCT_TRAITS_BEGIN(PrintMsg_Print_Params)
   // Physical size of the page, including non-printable margins,
@@ skipping 69 matching lines @@
 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)
@@ skipping 94 matching lines @@
   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_ROUTED0(PrintMsg_InitiatePrintPreview)
+IPC_MESSAGE_ROUTED1(PrintMsg_InitiatePrintPreview, bool /* selection_only */)
 
 // Tells the render view to initiate printing or print preview for a particular
 // node, depending on which mode the render view 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,
                     DictionaryValue /* settings */)
@@ skipping 76 matching lines @@
 // in resulting NativeMetafile in printing.
 IPC_SYNC_MESSAGE_CONTROL0_2(PrintHostMsg_AllocateTempFileForPrinting,
                             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.
-// |is_modifiable| is set to true when the request is for a web page, and false
-// for a PDF.
-// |webnode_only| is set to true if the document being printed is a specific
-// WebNode, and false if the document is a full WebFrame.
-IPC_MESSAGE_ROUTED3(PrintHostMsg_RequestPrintPreview,
-                    bool /* is_modifiable */,
-                    bool /* webnode_only */,
-                    bool /* has_selection */)
+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.
@@ skipping 37 matching lines @@
                     int /* document cookie */)
 
 // Run a nested message loop in the renderer until print preview for
 // window.print() finishes.
 IPC_SYNC_MESSAGE_ROUTED1_0(PrintHostMsg_ScriptedPrintPreview,
                            bool /* is_modifiable */)
 
 // Notify the browser that the PDF in the initiator renderer has disabled print
 // scaling option.
 IPC_MESSAGE_ROUTED0(PrintHostMsg_PrintPreviewScalingDisabled)