1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // IPC messages for printing. 6 // Multiply-included message file, hence no include guard. 7 8 #include <string> 9 #include <vector> 10 11 #include "base/memory/shared_memory.h" 12 #include "base/values.h" 13 #include "ipc/ipc_message_macros.h" 14 #include "printing/page_size_margins.h" 15 #include "printing/print_job_constants.h" 16 #include "third_party/WebKit/public/web/WebPrintScalingOption.h" 17 #include "ui/gfx/native_widget_types.h" 18 #include "ui/gfx/rect.h" 19 20 #ifndef CHROME_COMMON_PRINT_MESSAGES_H_ 21 #define CHROME_COMMON_PRINT_MESSAGES_H_ 22 23 struct PrintMsg_Print_Params { 24 PrintMsg_Print_Params(); 25 ~PrintMsg_Print_Params(); 26 27 // Resets the members of the struct to 0. 28 void Reset(); 29 30 gfx::Size page_size; 31 gfx::Size content_size; 32 gfx::Rect printable_area; 33 int margin_top; 34 int margin_left; 35 double dpi; 36 double min_shrink; 37 double max_shrink; 38 int desired_dpi; 39 int document_cookie; 40 bool selection_only; 41 bool supports_alpha_blend; 42 int32 preview_ui_id; 43 int preview_request_id; 44 bool is_first_request; 45 WebKit::WebPrintScalingOption print_scaling_option; 46 bool print_to_pdf; 47 bool display_header_footer; 48 string16 date; 49 string16 title; 50 string16 url; 51 bool should_print_backgrounds; 52 }; 53 54 struct PrintMsg_PrintPages_Params { 55 PrintMsg_PrintPages_Params(); 56 ~PrintMsg_PrintPages_Params(); 57 58 // Resets the members of the struct to 0. 59 void Reset(); 60 61 PrintMsg_Print_Params params; 62 std::vector<int> pages; 63 }; 64 65 struct PrintHostMsg_RequestPrintPreview_Params { 66 PrintHostMsg_RequestPrintPreview_Params(); 67 ~PrintHostMsg_RequestPrintPreview_Params(); 68 bool is_modifiable; 69 bool webnode_only; 70 bool has_selection; 71 bool selection_only; 72 }; 73 74 #endif // CHROME_COMMON_PRINT_MESSAGES_H_ 75 76 #define IPC_MESSAGE_START PrintMsgStart 77 78 IPC_ENUM_TRAITS(printing::MarginType) 79 IPC_ENUM_TRAITS(WebKit::WebPrintScalingOption) 80 81 // Parameters for a render request. 82 IPC_STRUCT_TRAITS_BEGIN(PrintMsg_Print_Params) 83 // Physical size of the page, including non-printable margins, 84 // in pixels according to dpi. 85 IPC_STRUCT_TRAITS_MEMBER(page_size) 86 87 // In pixels according to dpi_x and dpi_y. 88 IPC_STRUCT_TRAITS_MEMBER(content_size) 89 90 // Physical printable area of the page in pixels according to dpi. 91 IPC_STRUCT_TRAITS_MEMBER(printable_area) 92 93 // The y-offset of the printable area, in pixels according to dpi. 94 IPC_STRUCT_TRAITS_MEMBER(margin_top) 95 96 // The x-offset of the printable area, in pixels according to dpi. 97 IPC_STRUCT_TRAITS_MEMBER(margin_left) 98 99 // Specifies dots per inch. 100 IPC_STRUCT_TRAITS_MEMBER(dpi) 101 102 // Minimum shrink factor. See PrintSettings::min_shrink for more information. 103 IPC_STRUCT_TRAITS_MEMBER(min_shrink) 104 105 // Maximum shrink factor. See PrintSettings::max_shrink for more information. 106 IPC_STRUCT_TRAITS_MEMBER(max_shrink) 107 108 // Desired apparent dpi on paper. 109 IPC_STRUCT_TRAITS_MEMBER(desired_dpi) 110 111 // Cookie for the document to ensure correctness. 112 IPC_STRUCT_TRAITS_MEMBER(document_cookie) 113 114 // Should only print currently selected text. 115 IPC_STRUCT_TRAITS_MEMBER(selection_only) 116 117 // Does the printer support alpha blending? 118 IPC_STRUCT_TRAITS_MEMBER(supports_alpha_blend) 119 120 // *** Parameters below are used only for print preview. *** 121 122 // The print preview ui associated with this request. 123 IPC_STRUCT_TRAITS_MEMBER(preview_ui_id) 124 125 // The id of the preview request. 126 IPC_STRUCT_TRAITS_MEMBER(preview_request_id) 127 128 // True if this is the first preview request. 129 IPC_STRUCT_TRAITS_MEMBER(is_first_request) 130 131 // Specifies the page scaling option for preview printing. 132 IPC_STRUCT_TRAITS_MEMBER(print_scaling_option) 133 134 // True if print to pdf is requested. 135 IPC_STRUCT_TRAITS_MEMBER(print_to_pdf) 136 137 // Specifies if the header and footer should be rendered. 138 IPC_STRUCT_TRAITS_MEMBER(display_header_footer) 139 140 // Date string to be printed as header if requested by the user. 141 IPC_STRUCT_TRAITS_MEMBER(date) 142 143 // Title string to be printed as header if requested by the user. 144 IPC_STRUCT_TRAITS_MEMBER(title) 145 146 // URL string to be printed as footer if requested by the user. 147 IPC_STRUCT_TRAITS_MEMBER(url) 148 149 // True if print backgrounds is requested by the user. 150 IPC_STRUCT_TRAITS_MEMBER(should_print_backgrounds) 151 IPC_STRUCT_TRAITS_END() 152 153 IPC_STRUCT_BEGIN(PrintMsg_PrintPage_Params) 154 // Parameters to render the page as a printed page. It must always be the same 155 // value for all the document. 156 IPC_STRUCT_MEMBER(PrintMsg_Print_Params, params) 157 158 // The page number is the indicator of the square that should be rendered 159 // according to the layout specified in PrintMsg_Print_Params. 160 IPC_STRUCT_MEMBER(int, page_number) 161 IPC_STRUCT_END() 162 163 IPC_STRUCT_TRAITS_BEGIN(PrintHostMsg_RequestPrintPreview_Params) 164 IPC_STRUCT_TRAITS_MEMBER(is_modifiable) 165 IPC_STRUCT_TRAITS_MEMBER(webnode_only) 166 IPC_STRUCT_TRAITS_MEMBER(has_selection) 167 IPC_STRUCT_TRAITS_MEMBER(selection_only) 168 IPC_STRUCT_TRAITS_END() 169 170 IPC_STRUCT_TRAITS_BEGIN(printing::PageSizeMargins) 171 IPC_STRUCT_TRAITS_MEMBER(content_width) 172 IPC_STRUCT_TRAITS_MEMBER(content_height) 173 IPC_STRUCT_TRAITS_MEMBER(margin_left) 174 IPC_STRUCT_TRAITS_MEMBER(margin_right) 175 IPC_STRUCT_TRAITS_MEMBER(margin_top) 176 IPC_STRUCT_TRAITS_MEMBER(margin_bottom) 177 IPC_STRUCT_TRAITS_END() 178 179 IPC_STRUCT_TRAITS_BEGIN(PrintMsg_PrintPages_Params) 180 // Parameters to render the page as a printed page. It must always be the same 181 // value for all the document. 182 IPC_STRUCT_TRAITS_MEMBER(params) 183 184 // If empty, this means a request to render all the printed pages. 185 IPC_STRUCT_TRAITS_MEMBER(pages) 186 IPC_STRUCT_TRAITS_END() 187 188 // Parameters to describe a rendered document. 189 IPC_STRUCT_BEGIN(PrintHostMsg_DidPreviewDocument_Params) 190 // True when we can reuse existing preview data. |metafile_data_handle| and 191 // |data_size| should not be used when this is true. 192 IPC_STRUCT_MEMBER(bool, reuse_existing_data) 193 194 // A shared memory handle to metafile data. 195 IPC_STRUCT_MEMBER(base::SharedMemoryHandle, metafile_data_handle) 196 197 // Size of metafile data. 198 IPC_STRUCT_MEMBER(uint32, data_size) 199 200 // Cookie for the document to ensure correctness. 201 IPC_STRUCT_MEMBER(int, document_cookie) 202 203 // Store the expected pages count. 204 IPC_STRUCT_MEMBER(int, expected_pages_count) 205 206 // Whether the preview can be modified. 207 IPC_STRUCT_MEMBER(bool, modifiable) 208 209 // The id of the preview request. 210 IPC_STRUCT_MEMBER(int, preview_request_id) 211 IPC_STRUCT_END() 212 213 // Parameters to describe a rendered preview page. 214 IPC_STRUCT_BEGIN(PrintHostMsg_DidPreviewPage_Params) 215 // A shared memory handle to metafile data for a draft document of the page. 216 IPC_STRUCT_MEMBER(base::SharedMemoryHandle, metafile_data_handle) 217 218 // Size of metafile data. 219 IPC_STRUCT_MEMBER(uint32, data_size) 220 221 // |page_number| is zero-based and can be |printing::INVALID_PAGE_INDEX| if it 222 // is just a check. 223 IPC_STRUCT_MEMBER(int, page_number) 224 225 // The id of the preview request. 226 IPC_STRUCT_MEMBER(int, preview_request_id) 227 IPC_STRUCT_END() 228 229 // Parameters sent along with the page count. 230 IPC_STRUCT_BEGIN(PrintHostMsg_DidGetPreviewPageCount_Params) 231 // Cookie for the document to ensure correctness. 232 IPC_STRUCT_MEMBER(int, document_cookie) 233 234 // Total page count. 235 IPC_STRUCT_MEMBER(int, page_count) 236 237 // Indicates whether the previewed document is modifiable. 238 IPC_STRUCT_MEMBER(bool, is_modifiable) 239 240 // The id of the preview request. 241 IPC_STRUCT_MEMBER(int, preview_request_id) 242 243 // Indicates whether the existing preview data needs to be cleared or not. 244 IPC_STRUCT_MEMBER(bool, clear_preview_data) 245 IPC_STRUCT_END() 246 247 // Parameters to describe a rendered page. 248 IPC_STRUCT_BEGIN(PrintHostMsg_DidPrintPage_Params) 249 // A shared memory handle to the EMF data. This data can be quite large so a 250 // memory map needs to be used. 251 IPC_STRUCT_MEMBER(base::SharedMemoryHandle, metafile_data_handle) 252 253 // Size of the metafile data. 254 IPC_STRUCT_MEMBER(uint32, data_size) 255 256 // Cookie for the document to ensure correctness. 257 IPC_STRUCT_MEMBER(int, document_cookie) 258 259 // Page number. 260 IPC_STRUCT_MEMBER(int, page_number) 261 262 // Shrink factor used to render this page. 263 IPC_STRUCT_MEMBER(double, actual_shrink) 264 265 // The size of the page the page author specified. 266 IPC_STRUCT_MEMBER(gfx::Size, page_size) 267 268 // The printable area the page author specified. 269 IPC_STRUCT_MEMBER(gfx::Rect, content_area) 270 IPC_STRUCT_END() 271 272 // Parameters for the IPC message ViewHostMsg_ScriptedPrint 273 IPC_STRUCT_BEGIN(PrintHostMsg_ScriptedPrint_Params) 274 IPC_STRUCT_MEMBER(int, cookie) 275 IPC_STRUCT_MEMBER(int, expected_pages_count) 276 IPC_STRUCT_MEMBER(bool, has_selection) 277 IPC_STRUCT_MEMBER(printing::MarginType, margin_type) 278 IPC_STRUCT_END() 279 280 281 // Messages sent from the browser to the renderer. 282 283 // Tells the render view to initiate print preview for the entire document. 284 IPC_MESSAGE_ROUTED1(PrintMsg_InitiatePrintPreview, bool /* selection_only */) 285 286 // Tells the render view to initiate printing or print preview for a particular 287 // node, depending on which mode the render view is in. 288 IPC_MESSAGE_ROUTED0(PrintMsg_PrintNodeUnderContextMenu) 289 290 // Tells the renderer to print the print preview tab's PDF plugin without 291 // showing the print dialog. (This is the final step in the print preview 292 // workflow.) 293 IPC_MESSAGE_ROUTED1(PrintMsg_PrintForPrintPreview, 294 base::DictionaryValue /* settings */) 295 296 // Tells the render view to switch the CSS to print media type, renders every 297 // requested pages and switch back the CSS to display media type. 298 IPC_MESSAGE_ROUTED0(PrintMsg_PrintPages) 299 300 // Tells the render view that printing is done so it can clean up. 301 IPC_MESSAGE_ROUTED1(PrintMsg_PrintingDone, 302 bool /* success */) 303 304 // Tells the render view whether scripted printing is blocked or not. 305 IPC_MESSAGE_ROUTED1(PrintMsg_SetScriptedPrintingBlocked, 306 bool /* blocked */) 307 308 // Tells the render view to switch the CSS to print media type, renders every 309 // requested pages for print preview using the given |settings|. This gets 310 // called multiple times as the user updates settings. 311 IPC_MESSAGE_ROUTED1(PrintMsg_PrintPreview, 312 base::DictionaryValue /* settings */) 313 314 // Like PrintMsg_PrintPages, but using the print preview document's frame/node. 315 IPC_MESSAGE_ROUTED0(PrintMsg_PrintForSystemDialog) 316 317 // Tells a renderer to stop blocking script initiated printing. 318 IPC_MESSAGE_ROUTED0(PrintMsg_ResetScriptedPrintCount) 319 320 // Messages sent from the renderer to the browser. 321 322 #if defined(OS_WIN) 323 // Duplicates a shared memory handle from the renderer to the browser. Then 324 // the renderer can flush the handle. 325 IPC_SYNC_MESSAGE_ROUTED1_1(PrintHostMsg_DuplicateSection, 326 base::SharedMemoryHandle /* renderer handle */, 327 base::SharedMemoryHandle /* browser handle */) 328 #endif 329 330 // Check if printing is enabled. 331 IPC_SYNC_MESSAGE_ROUTED0_1(PrintHostMsg_IsPrintingEnabled, 332 bool /* is_enabled */) 333 334 // Tells the browser that the renderer is done calculating the number of 335 // rendered pages according to the specified settings. 336 IPC_MESSAGE_ROUTED2(PrintHostMsg_DidGetPrintedPagesCount, 337 int /* rendered document cookie */, 338 int /* number of rendered pages */) 339 340 // Sends the document cookie of the current printer query to the browser. 341 IPC_MESSAGE_ROUTED1(PrintHostMsg_DidGetDocumentCookie, 342 int /* rendered document cookie */) 343 344 // Tells the browser that the print dialog has been shown. 345 IPC_MESSAGE_ROUTED0(PrintHostMsg_DidShowPrintDialog) 346 347 // Sends back to the browser the rendered "printed page" that was requested by 348 // a ViewMsg_PrintPage message or from scripted printing. The memory handle in 349 // this message is already valid in the browser process. 350 IPC_MESSAGE_ROUTED1(PrintHostMsg_DidPrintPage, 351 PrintHostMsg_DidPrintPage_Params /* page content */) 352 353 // The renderer wants to know the default print settings. 354 IPC_SYNC_MESSAGE_ROUTED0_1(PrintHostMsg_GetDefaultPrintSettings, 355 PrintMsg_Print_Params /* default_settings */) 356 357 // The renderer wants to update the current print settings with new 358 // |job_settings|. 359 IPC_SYNC_MESSAGE_ROUTED2_1(PrintHostMsg_UpdatePrintSettings, 360 int /* document_cookie */, 361 base::DictionaryValue /* job_settings */, 362 PrintMsg_PrintPages_Params /* current_settings */) 363 364 // It's the renderer that controls the printing process when it is generated 365 // by javascript. This step is about showing UI to the user to select the 366 // final print settings. The output parameter is the same as 367 // ViewMsg_PrintPages which is executed implicitly. 368 IPC_SYNC_MESSAGE_ROUTED1_1(PrintHostMsg_ScriptedPrint, 369 PrintHostMsg_ScriptedPrint_Params, 370 PrintMsg_PrintPages_Params 371 /* settings chosen by the user*/) 372 373 #if defined(OS_CHROMEOS) || defined(OS_ANDROID) 374 // Asks the browser to create a temporary file for the renderer to fill 375 // in resulting NativeMetafile in printing. 376 IPC_SYNC_MESSAGE_CONTROL1_2(PrintHostMsg_AllocateTempFileForPrinting, 377 int /* render_view_id */, 378 base::FileDescriptor /* temp file fd */, 379 int /* fd in browser*/) // Used only by Chrome OS. 380 IPC_MESSAGE_CONTROL2(PrintHostMsg_TempFileForPrintingWritten, 381 int /* render_view_id */, 382 int /* fd in browser */) // Used only by Chrome OS. 383 #endif 384 385 // Asks the browser to do print preview. 386 IPC_MESSAGE_ROUTED1(PrintHostMsg_RequestPrintPreview, 387 PrintHostMsg_RequestPrintPreview_Params /* params */) 388 389 // Notify the browser the number of pages in the print preview document. 390 IPC_MESSAGE_ROUTED1(PrintHostMsg_DidGetPreviewPageCount, 391 PrintHostMsg_DidGetPreviewPageCount_Params /* params */) 392 393 // Notify the browser of the default page layout according to the currently 394 // selected printer and page size. 395 // |printable_area_in_points| Specifies the printable area in points. 396 // |has_custom_page_size_style| is true when the printing frame has a custom 397 // page size css otherwise false. 398 IPC_MESSAGE_ROUTED3(PrintHostMsg_DidGetDefaultPageLayout, 399 printing::PageSizeMargins /* page layout in points */, 400 gfx::Rect /* printable area in points */, 401 bool /* has custom page size style */) 402 403 // Notify the browser a print preview page has been rendered. 404 IPC_MESSAGE_ROUTED1(PrintHostMsg_DidPreviewPage, 405 PrintHostMsg_DidPreviewPage_Params /* params */) 406 407 // Asks the browser whether the print preview has been cancelled. 408 IPC_SYNC_MESSAGE_ROUTED2_1(PrintHostMsg_CheckForCancel, 409 int32 /* PrintPreviewUI ID */, 410 int /* request id */, 411 bool /* print preview cancelled */) 412 413 // Sends back to the browser the complete rendered document (non-draft mode, 414 // used for printing) that was requested by a PrintMsg_PrintPreview message. 415 // The memory handle in this message is already valid in the browser process. 416 IPC_MESSAGE_ROUTED1(PrintHostMsg_MetafileReadyForPrinting, 417 PrintHostMsg_DidPreviewDocument_Params /* params */) 418 419 // Tell the browser printing failed. 420 IPC_MESSAGE_ROUTED1(PrintHostMsg_PrintingFailed, 421 int /* document cookie */) 422 423 // Tell the browser print preview failed. 424 IPC_MESSAGE_ROUTED1(PrintHostMsg_PrintPreviewFailed, 425 int /* document cookie */) 426 427 // Tell the browser print preview was cancelled. 428 IPC_MESSAGE_ROUTED1(PrintHostMsg_PrintPreviewCancelled, 429 int /* document cookie */) 430 431 // Tell the browser print preview found the selected printer has invalid 432 // settings (which typically caused by disconnected network printer or printer 433 // driver is bogus). 434 IPC_MESSAGE_ROUTED1(PrintHostMsg_PrintPreviewInvalidPrinterSettings, 435 int /* document cookie */) 436 437 // Run a nested message loop in the renderer until print preview for 438 // window.print() finishes. 439 IPC_SYNC_MESSAGE_ROUTED0_0(PrintHostMsg_SetupScriptedPrintPreview) 440 441 // Tell the browser to show the print preview, when the document is sufficiently 442 // loaded such that the renderer can determine whether it is modifiable or not. 443 IPC_MESSAGE_ROUTED1(PrintHostMsg_ShowScriptedPrintPreview, 444 bool /* is_modifiable */) 445 446 // Notify the browser that the PDF in the initiator renderer has disabled print 447 // scaling option. 448 IPC_MESSAGE_ROUTED0(PrintHostMsg_PrintPreviewScalingDisabled) 449