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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.
5 // IPC messages for page rendering.
6 // Multiply-included message file, hence no include guard.
66 #if defined(OS_MACOSX)
68 #endif
70 #undef IPC_MESSAGE_EXPORT
71 #define IPC_MESSAGE_EXPORT CONTENT_EXPORT
73 #define IPC_MESSAGE_START ViewMsgStart
101 #if defined(OS_MACOSX)
106 #endif
206 #if defined(OS_ANDROID)
209 #endif
228 #if defined(OS_ANDROID)
230 #endif
332 // Routing ID of the view initiating the open.
335 // True if this open request came in the context of a user gesture.
338 // Type of window requested.
341 // The session storage namespace ID this view should use.
344 // The name of the resulting frame that should be created (empty if none
345 // has been specified).
348 // The frame identifier of the frame initiating the open.
351 // The URL of the frame initiating the open.
354 // The URL of the top frame containing the opener.
357 // The security origin of the frame initiating the open.
360 // Whether the opener will be suppressed in the new window, in which case
361 // scripting the new window is not allowed.
364 // Whether the window should be opened in the foreground, background, etc.
367 // The URL that will be loaded in the new window (empty if none has been
368 // sepcified).
371 // The referrer that will be used to load |target_url| (empty if none has
372 // been specified).
375 // The window features to use for the new view.
378 // The additional window features to use for the new view. We pass these
379 // separately from |features| above because we cannot serialize WebStrings
380 // over IPC.
385 // URL for the worker script.
388 // Name for a SharedWorker, otherwise empty string.
391 // Security policy used in the worker.
394 // Security policy type used in the worker.
397 // The ID of the parent document (unique within parent renderer).
400 // RenderFrame routing id used to send messages back to the parent.
403 // The route ID to associate with the worker. If MSG_ROUTING_NONE is passed,
404 // a new unique ID is created and assigned to the worker.
407 // The ID of the appcache the main shared worker script resource was loaded
408 // from, only valid for shared workers.
421 // Parameters structure for ViewHostMsg_FrameNavigate, which has too many data
422 // parameters to be reasonably put in a predefined IPC message.
426 // The frame ID for this navigation. The frame ID uniquely identifies the
427 // frame the navigation happened in for a given renderer.
430 // The WebFrame's uniqueName().
433 // Information regarding the security of the connection (empty if the
434 // connection was not secure).
437 // The gesture that initiated this navigation.
440 // True if this was a post request.
443 // The POST body identifier. -1 if it doesn't exist.
446 // Whether the frame navigation resulted in no change to the documents within
447 // the page. For example, the navigation may have just resulted in scrolling
448 // to a named anchor.
451 // The status code of the HTTP request.
454 // True if the connection was proxied. In this case, socket_address
455 // will represent the address of the proxy, rather than the remote host.
458 // Serialized history item state to store in the navigation entry.
461 // Original request's URL.
464 // User agent override used to navigate.
467 // Notifies the browser that for this navigation, the session history was
468 // successfully cleared.
489 // This message is used for supporting popup menus on Mac OS X using native
490 // Cocoa controls. The renderer sends us this message which we use to populate
491 // the popup menu.
493 // Position on the screen.
496 // The height of each item in the menu.
499 // The size of the font to use for those items.
502 // The currently selected (displayed) item in the menu.
505 // The entire list of items in the popup menu.
508 // Whether items should be right-aligned.
511 // Whether this is a multi-select popup.
516 // The type of input field
519 // The value of the input field
522 // The cursor position of the current selection start, or the caret position
523 // if nothing is selected
526 // The cursor position of the current selection end, or the caret position
527 // if nothing is selected
530 // The start position of the current composition, or -1 if there is none
533 // The end position of the current composition, or -1 if there is none
536 // Whether or not inline composition can be performed for the current input.
539 // Whether or not the IME should be shown as a result of this update. Even if
540 // true, the IME will only be shown if the type is appropriate (e.g. not
541 // TEXT_INPUT_TYPE_NONE).
544 // Whether an acknowledgement is required for this update.
549 // The bitmap to be painted into the view at the locations specified by
550 // update_rects.
553 // The position and size of the bitmap.
556 // The scroll delta. Only one of the delta components can be non-zero, and if
557 // they are both zero, then it means there is no scrolling and the scroll_rect
558 // is ignored.
561 // The rectangular region to scroll.
564 // The scroll offset of the render view.
567 // The regions of the bitmap (in view coords) that contain updated pixels.
568 // In the case of scrolling, this includes the scroll damage rect.
571 // The size of the RenderView when this message was generated. This is
572 // included so the host knows how large the view is from the perspective of
573 // the renderer process. This is necessary in case a resize operation is in
574 // progress. If auto-resize is enabled, this should update the corresponding
575 // view size.
578 // New window locations for plugin child windows.
580 plugin_window_moves)
582 // The following describes the various bits that may be set in flags:
583 //
584 // ViewHostMsg_UpdateRect_Flags::IS_RESIZE_ACK
585 // Indicates that this is a response to a ViewMsg_Resize message.
586 //
587 // ViewHostMsg_UpdateRect_Flags::IS_RESTORE_ACK
588 // Indicates that this is a response to a ViewMsg_WasShown message.
589 //
590 // ViewHostMsg_UpdateRect_Flags::IS_REPAINT_ACK
591 // Indicates that this is a response to a ViewMsg_Repaint message.
592 //
593 // If flags is zero, then this message corresponds to an unsolicited paint
594 // request by the render view. Any of the above bits may be set in flags,
595 // which would indicate that this paint message is an ACK for multiple
596 // request messages.
599 // Whether or not the renderer expects a ViewMsg_UpdateRect_ACK for this
600 // update. True for 2D painting, but false for accelerated compositing.
603 // All the above coordinates are in DIP. This is the scale factor needed
604 // to convert them to pixels.
607 // The latency information for the frame. Only valid when accelerated
608 // compositing is disabled.
613 // The page_id for this navigation, or -1 if it is a new navigation. Back,
614 // Forward, and Reload navigations should have a valid page_id. If the load
615 // succeeds, then this page_id will be reflected in the resultant
616 // ViewHostMsg_FrameNavigate message.
619 // If page_id is -1, then pending_history_list_offset will also be -1.
620 // Otherwise, it contains the offset into the history list corresponding to
621 // the current navigation.
624 // Informs the RenderView of where its current page contents reside in
625 // session history and the total size of the session history list.
629 // Informs the RenderView the session history should be cleared. In that
630 // case, the RenderView needs to notify the browser that the clearing was
631 // succesful when the navigation commits.
634 // The URL to load.
637 // Base URL for use in WebKit's SubstituteData.
638 // Is only used with data: URLs.
641 // History URL for use in WebKit's SubstituteData.
642 // Is only used with data: URLs.
645 // The URL to send in the "Referer" header field. Can be empty if there is
646 // no referrer.
649 // Any redirect URLs that occurred before |url|. Useful for cross-process
650 // navigations; defaults to empty.
653 // The type of transition.
656 // Informs the RenderView the pending navigation should replace the current
657 // history entry when it commits. This is used for cross-process redirects so
658 // the transferred navigation can recover the navigation state.
661 // Opaque history state (received by ViewHostMsg_UpdateState).
664 // Type of navigation.
667 // The time the request was created
670 // Extra headers (separated by \n) to send during the request.
673 // The following two members identify a previous request that has been
674 // created before this navigation is being transferred to a new render view.
675 // This serves the purpose of recycling the old request.
676 // Unless this refers to a transferred navigation, these values are -1 and -1.
680 // Whether or not we should allow the url to download.
683 // Whether or not the user agent override string should be used.
686 // True if this was a post request.
689 // If is_post is true, holds the post_data information from browser. Empty
690 // otherwise.
693 // Whether or not this url should be allowed to access local file://
694 // resources.
697 // If not empty, which frame to navigate.
700 // The navigationStart time to expose to JS for this navigation.
705 // Renderer-wide preferences.
708 // Preferences for this view.
711 // The ID of the view to be created.
714 // The ID of the main frame hosted in the view.
717 // The ID of the rendering surface.
720 // The session storage namespace ID this view should use.
723 // The name of the frame associated with this view (or empty if none).
726 // The route ID of the opener RenderView if we need to set one
727 // (MSG_ROUTING_NONE otherwise).
730 // Whether the RenderView should initially be swapped out.
733 // Whether the RenderView should initially be hidden.
736 // The initial page ID to use for this view, which must be larger than any
737 // existing navigation that might be loaded in the view. Page IDs are unique
738 // to a view and are only updated by the renderer after this initial value.
741 // The properties of the screen associated with the view.
744 // The accessibility mode of the renderer.
747 // Specifies whether partially swapping composited buffers is
748 // allowed for a renderer. Partial swaps will be used if they are both
749 // allowed and supported.
754 // The serialized script value.
757 // When sent to the browser, this is the routing ID of the source frame in
758 // the source process. The browser replaces it with the routing ID of the
759 // equivalent (swapped out) frame in the destination process.
762 // The origin of the source frame.
765 // The origin for the message's target.
768 // Information about the MessagePorts this message contains.
773 // Messages sent from the browser to the renderer.
775 // Tells the renderer to cancel an opened date/time dialog.
778 // Get all savable resource links from current webpage, include main
779 // frame and sub-frame.
783 // Get html data by serializing all frames of current page with lists
784 // which contain all resource links that have local copy.
790 // Tells the render side that a ViewHostMsg_LockMouse message has been
791 // processed. |succeeded| indicates whether the mouse has been successfully
792 // locked or not.
795 // Tells the render side that the mouse has been unlocked.
798 // Screen was rotated. Dispatched to the onorientationchange javascript API.
802 // Sent by the browser when the parameters for vsync alignment have changed.
807 // Set the top-level frame to the provided name.
811 // Sent to the RenderView when a new tab is swapped into an existing
812 // tab and the histories need to be merged. The existing tab has a history of
813 // |merged_history_length| which precedes the history of the new tab. All
814 // page_ids >= |minimum_page_id| in the new tab are appended to the history.
815 //
816 // For example, suppose the history of page_ids in the new tab's RenderView
817 // is [4 7 8]. This is merged into an existing tab with 3 history items, and
818 // all pages in the new tab with page_id >= 7 are to be preserved.
819 // The resulting page history is [-1 -1 -1 7 8].
824 // Tells the renderer to create a new view.
825 // This message is slightly different, the view it takes (via
826 // ViewMsg_New_Params) is the view to create, the message itself is sent as a
827 // non-view control message.
829 ViewMsg_New_Params)
831 // Reply in response to ViewHostMsg_ShowView or ViewHostMsg_ShowWidget.
832 // similar to the new command, but used when the renderer created a view
833 // first, and we need to update it.
836 // Sends updated preferences to the renderer.
840 // This passes a set of webkit preferences down to the renderer.
842 WebPreferences)
844 // Informs the renderer that the timezone has changed.
847 // Tells the render view to close.
859 // Tells the render view to change its size. A ViewHostMsg_UpdateRect message
860 // is generated in response provided new_size is not empty and not equal to
861 // the view's current size. The generated ViewHostMsg_UpdateRect message will
862 // have the IS_RESIZE_ACK flag set. It also receives the resizer rect so that
863 // we don't have to fetch it every time WebKit asks for it.
867 // Tells the render view that the resize rect has changed.
871 // Sent to inform the view that it was hidden. This allows it to reduce its
872 // resource utilization.
875 // Tells the render view that it is no longer hidden (see WasHidden), and the
876 // render view is expected to respond with a full repaint if needs_repainting
877 // is true. In that case, the generated ViewHostMsg_UpdateRect message will
878 // have the IS_RESTORE_ACK flag set. If needs_repainting is false, then this
879 // message does not trigger a message in response.
883 // Sent to inform the view that it was swapped out. This allows the process to
884 // exit if no other views are using it.
887 // Sent to render the view into the supplied transport DIB, resize
888 // the web widget to match the |page_size|, scale it by the
889 // appropriate scale to make it fit the |desired_size|, and return
890 // it. In response to this message, the host generates a
891 // ViewHostMsg_PaintAtSize_ACK message. Note that the DIB *must* be
892 // the right size to receive an RGBA image at the |desired_size|.
893 // |tag| is sent along with ViewHostMsg_PaintAtSize_ACK unmodified to
894 // identify the PaintAtSize message the ACK belongs to.
901 // Tells the render view that a ViewHostMsg_UpdateRect message was processed.
902 // This signals the render view that it can send another UpdateRect message.
905 // Tells the render view that a SwapBuffers was completed. Typically,
906 // SwapBuffers requests go from renderer -> GPU process -> browser. Most
907 // platforms still use the GfxCxt3D Echo for receiving the SwapBuffers Ack.
908 // Using Echo routes the ack from browser -> GPU process -> renderer, while this
909 // Ack goes directly from browser -> renderer. This is not used for the threaded
910 // compositor path.
913 // Tells the renderer to focus the first (last if reverse is true) focusable
914 // node.
918 // Executes custom context menu action that was provided from WebKit.
923 // Sent in response to a ViewHostMsg_ContextMenu to let the renderer know that
924 // the menu has been closed.
928 // Sent to inform the renderer to invoke a context menu.
929 // The parameter specifies the location in the render view's coordinates.
933 // Tells the renderer to perform the specified navigation, interrupting any
934 // existing navigation.
939 // Tells the renderer to reload the current focused frame
942 // Sent when the user wants to search for a word on the page (find in page).
948 // This message notifies the renderer that the user has closed the FindInPage
949 // window (and what action to take regarding the selection).
953 // Informs the renderer about various statistics the browser has (e.g.
954 // latency) regarding the frames that have been displayed.
958 // Replaces a date time input field.
962 // Copies the image at location x, y to the clipboard (if there indeed is an
963 // image at that location).
968 // Tells the renderer to perform the given action on the media player
969 // located at the given point.
974 // Tells the renderer to perform the given action on the plugin located at
975 // the given point.
980 // Request for the renderer to evaluate an xpath to a frame and execute a
981 // javascript: url in that frame's context. The message is completely
982 // asynchronous and no corresponding response message is sent back.
983 //
984 // frame_xpath contains the modified xpath notation to identify an inner
985 // subframe (starting from the root frame). It is a concatenation of
986 // number of smaller xpaths delimited by '\n'. Each chunk in the string can
987 // be evaluated to a frame in its parent-frame's context.
988 //
989 // Example: /html/body/iframe/\n/html/body/div/iframe/\n/frameset/frame[0]
990 // can be broken into 3 xpaths
991 // /html/body/iframe evaluates to an iframe within the root frame
992 // /html/body/div/iframe evaluates to an iframe within the level-1 iframe
993 // /frameset/frame[0] evaluates to first frame within the level-2 iframe
994 //
995 // jscript_url is the string containing the javascript: url to be executed
996 // in the target frame's context. The string should start with "javascript:"
997 // and continue with a valid JS text.
998 //
999 // If the fourth parameter is true the result is sent back to the renderer
1000 // using the message ViewHostMsg_ScriptEvalResponse.
1001 // ViewHostMsg_ScriptEvalResponse is passed the ID parameter so that the
1002 // client can uniquely identify the request.
1009 // Posts a message from a frame in another process to the current renderer.
1011 ViewMsg_PostMessage_Params)
1013 // Requests that the RenderView's main frame sets its opener to null.
1016 // Request for the renderer to evaluate an xpath to a frame and insert css
1017 // into that frame's document. See ViewMsg_ScriptEvalRequest for details on
1018 // allowed xpath expressions.
1023 // Change the zoom level for the current main frame. If the level actually
1024 // changes, a ViewHostMsg_DidZoomURL message will be sent back to the browser
1025 // telling it what url got zoomed and what its current zoom level is.
1029 // Set the zoom level for the current main frame. If the level actually
1030 // changes, a ViewHostMsg_DidZoomURL message will be sent back to the browser
1031 // telling it what url got zoomed and what its current zoom level is.
1035 // Zooms the page by the factor defined in the renderer.
1041 // Set the zoom level for a particular url that the renderer is in the
1042 // process of loading. This will be stored, to be used if the load commits
1043 // and ignored otherwise.
1048 // Set the zoom level for a particular url, so all render views
1049 // displaying this url can update their zoom levels to match.
1050 // If scheme is empty, then only host is used for matching.
1056 // Change encoding of page in the renderer.
1060 // Reset encoding of page in the renderer back to default.
1063 // Used to tell a render view whether it should expose various bindings
1064 // that allow JS content extended privileges. See BindingsPolicy for valid
1065 // flag values.
1069 // Tell the renderer to add a property to the WebUI binding object. This
1070 // only works if we allowed WebUI bindings.
1075 // This message starts/stop monitoring the input method status of the focused
1076 // edit control of a renderer process.
1077 // Parameters
1078 // * is_active (bool)
1079 // Indicates if an input method is active in the browser process.
1080 // The possible actions when a renderer process receives this message are
1081 // listed below:
1082 // Value Action
1083 // true Start sending IPC message ViewHostMsg_ImeUpdateTextInputState
1084 // to notify the input method status of the focused edit control.
1085 // false Stop sending IPC message ViewHostMsg_ImeUpdateTextInputState.
1089 // IME API oncandidatewindow* events for InputMethodContext.
1094 // This message sends a string being composed with an input method.
1096 ViewMsg_ImeSetComposition,
1102 // This message confirms an ongoing composition.
1108 // Sets the text composition to be between the given start and end offsets
1109 // in the currently focused editable field.
1115 // Selects between the given start and end offsets in the currently focused
1116 // editable field.
1121 // Deletes the current selection plus the specified number of characters before
1122 // and after the selection or caret.
1127 // Used to notify the render-view that we have received a target URL. Used
1128 // to prevent target URLs spamming the browser.
1131 // Notifies the color chooser client that the user selected a color.
1134 // Notifies the color chooser client that the color chooser has ended.
1140 // Provides the results of directory enumeration.
1145 // When a renderer sends a ViewHostMsg_Focus to the browser process,
1146 // the browser has the option of sending a ViewMsg_CantFocus back to
1147 // the renderer.
1150 // Instructs the renderer to invoke the frame's shouldClose method, which
1151 // runs the onbeforeunload event handler. Expects the result to be returned
1152 // via ViewHostMsg_ShouldClose.
1155 // Tells the renderer to suppress any further modal dialogs until it receives a
1156 // corresponding ViewMsg_SwapOut message. This ensures that no
1157 // PageGroupLoadDeferrer is on the stack for SwapOut.
1160 // Instructs the renderer to swap out for a cross-site transition, including
1161 // running the unload event handler. Expects a SwapOut_ACK message when
1162 // finished.
1165 // Instructs the renderer to close the current page, including running the
1166 // onunload event handler.
1167 //
1168 // Expects a ClosePage_ACK message when finished.
1171 // Notifies the renderer about ui theme changes
1174 // Notifies the renderer that a paint is to be generated for the rectangle
1175 // passed in.
1179 // Notification that a move or resize renderer's containing window has
1180 // started.
1187 // Reply to ViewHostMsg_RequestMove, ViewHostMsg_ShowView, and
1188 // ViewHostMsg_ShowWidget to inform the renderer that the browser has
1189 // processed the move. The browser may have ignored the move, but it finished
1190 // processing. This is used because the renderer keeps a temporary cache of
1191 // the widget position while these asynchronous operations are in progress.
1194 // Used to instruct the RenderView to send back updates to the preferred size.
1197 // Used to instruct the RenderView to automatically resize and send back
1198 // updates for the new size.
1203 // Used to instruct the RenderView to disalbe automatically resize.
1207 // Changes the text direction of the currently selected input field (if any).
1211 // Tells the renderer to clear the focused node (if any).
1214 // Make the RenderView transparent and render it onto a custom background. The
1215 // background will be tiled in both directions if it is not large enough.
1219 // Used to tell the renderer not to add scrollbars with height and
1220 // width below a threshold.
1224 // Activate/deactivate the RenderView (i.e., set its controls' tint
1225 // accordingly, etc.).
1229 // Response message to ViewHostMsg_CreateShared/DedicatedWorker.
1230 // Sent when the worker has started.
1233 // Tells the renderer that the network state has changed and that
1234 // window.navigator.onLine should be updated for all WebViews.
1238 // Reply to ViewHostMsg_OpenChannelToPpapiBroker
1239 // Tells the renderer that the channel to the broker has been created.
1244 // Reply to ViewHostMsg_RequestPpapiBrokerPermission.
1245 // Tells the renderer whether permission to access to PPAPI broker was granted
1246 // or not.
1250 // Tells the renderer to empty its plugin list cache, optional reloading
1251 // pages containing plugins.
1255 // Used to instruct the RenderView to go into "view source" mode.
1258 // Instructs the renderer to save the current page to MHTML.
1263 // Temporary message to diagnose an unexpected condition in WebContentsImpl.
1267 // Change the accessibility mode in the renderer process.
1269 AccessibilityMode)
1271 // An acknowledge to ViewHostMsg_MultipleTargetsTouched to notify the renderer
1272 // process to release the magnified image.
1276 // Notifies the renderer that a snapshot has been retrieved.
1282 #if defined(OS_MACOSX)
1283 // Notification of a change in scrollbar appearance and/or behavior.
1289 #endif
1291 #if defined(OS_ANDROID)
1292 // Tells the renderer to suspend/resume the webkit timers.
1296 // Sent when the browser wants the bounding boxes of the current find matches.
1297 //
1298 // If match rects are already cached on the browser side, |current_version|
1299 // should be the version number from the ViewHostMsg_FindMatchRects_Reply
1300 // they came in, so the renderer can tell if it needs to send updated rects.
1301 // Otherwise just pass -1 to always receive the list of rects.
1302 //
1303 // There must be an active search string (it is probably most useful to call
1304 // this immediately after a ViewHostMsg_Find_Reply message arrives with
1305 // final_update set to true).
1309 // External popup menus.
1314 // Tells the renderer to try to revert to the zoom level we were at before
1315 // ViewMsg_ScrollFocusedEditableNodeIntoView was called.
1318 // Notifies the renderer whether hiding/showing the top controls is enabled
1319 // and whether or not to animate to the proper state.
1327 // Sent by the browser when the renderer should generate a new frame.
1331 // Sent by the browser when an IME update that requires acknowledgement has been
1332 // processed on the browser side.
1335 // Sent by the browser when we should pause video playback.
1338 // Extracts the data at the given rect, returning it through the
1339 // ViewHostMsg_SmartClipDataExtracted IPC.
1343 #elif defined(OS_MACOSX)
1344 // Let the RenderView know its window has changed visibility.
1348 // Let the RenderView know its window's frame has changed.
1353 // Message sent from the browser to the renderer when the user starts or stops
1354 // resizing the view.
1358 // Tell the renderer that plugin IME has completed.
1363 // External popup menus.
1366 #endif
1368 // Sent by the browser as a reply to ViewHostMsg_SwapCompositorFrame.
1373 // Sent by browser to tell renderer compositor that some resources that were
1374 // given to the browser in a swap are not being used anymore.
1379 // Sent by the browser to ask the renderer for a snapshot of the current view.
1383 // -----------------------------------------------------------------------------
1384 // Messages sent from the renderer to the browser.
1386 // Sent by the renderer when it is creating a new window. The browser creates
1387 // a tab for it and responds with a ViewMsg_CreatingNew_ACK. If route_id is
1388 // MSG_ROUTING_NONE, the view couldn't be created.
1390 ViewHostMsg_CreateWindow_Params,
1396 // Similar to ViewHostMsg_CreateWindow, except used for sub-widgets, like
1397 // <select> dropdowns. This message is sent to the WebContentsImpl that
1398 // contains the widget being created.
1405 // Similar to ViewHostMsg_CreateWidget except the widget is a full screen
1406 // window.
1412 // Asks the browser for a unique routing ID.
1416 // Asks the browser for the default audio hardware configuration.
1421 // Asks the browser for CPU usage of the renderer process in percents.
1425 // Asks the browser for the renderer process memory size stats.
1430 // These three messages are sent to the parent RenderViewHost to display the
1431 // page/widget that was created by
1432 // CreateWindow/CreateWidget/CreateFullscreenWidget. routing_id
1433 // refers to the id that was returned from the Create message above.
1434 // The initial_position parameter is a rectangle in screen coordinates.
1435 //
1436 // FUTURE: there will probably be flags here to control if the result is
1437 // in a new window.
1448 // Message to show a full screen widget.
1452 // This message is sent after ViewHostMsg_ShowView to cause the RenderView
1453 // to run in a modal fashion until it is closed.
1457 // Indicates the renderer is ready in response to a ViewMsg_New or
1458 // a ViewMsg_CreatingNew_ACK.
1461 // Indicates the renderer process is gone. This actually is sent by the
1462 // browser process to itself, but keeps the interface cleaner.
1467 // Sent by the renderer process to request that the browser close the view.
1468 // This corresponds to the window.close() API, and the browser may ignore
1469 // this message. Otherwise, the browser will generates a ViewMsg_Close
1470 // message to close the view.
1473 // Send in response to a ViewMsg_UpdateScreenRects so that the renderer can
1474 // throttle these messages.
1477 // Sent by the renderer process to request that the browser move the view.
1478 // This corresponds to the window.resizeTo() and window.moveTo() APIs, and
1479 // the browser may ignore this message.
1483 // Notifies the browser that a frame in the view has changed. This message
1484 // has a lot of parameters and is packed/unpacked by functions defined in
1485 // render_messages.h.
1487 ViewHostMsg_FrameNavigate_Params)
1489 // Used to tell the parent that the user right clicked on an area of the
1490 // content area, and a context menu should be shown for it. The params
1491 // object contains information about the node(s) that were selected when the
1492 // user right clicked.
1495 // Message to show a popup menu using native cocoa controls (Mac only).
1497 ViewHostMsg_ShowPopup_Params)
1499 // Response from ViewMsg_ScriptEvalRequest. The ID is the parameter supplied
1500 // to ViewMsg_ScriptEvalRequest. The result has the value returned by the
1501 // script as its only element, one of Null, Boolean, Integer, Real, Date, or
1502 // String.
1507 // Result of string search in the page.
1508 // Response to ViewMsg_Find with the results of the requested find-in-page
1509 // search, the number of matches found and the selection rect (in screen
1510 // coordinates) for the string found. If |final_update| is false, it signals
1511 // that this is not the last Find_Reply message - more will be sent as the
1512 // scoping effort continues.
1520 // Provides the result from running OnMsgShouldClose. |proceed| matches the
1521 // return value of the the frame's shouldClose method (which includes the
1522 // onbeforeunload handler): true if the user decided to proceed with leaving
1523 // the page.
1529 // Indicates that the current renderer has swapped out, after a SwapOut
1530 // message.
1533 // Indicates that the current page has been closed, after a ClosePage
1534 // message.
1537 // Notifies the browser that media has started/stopped playing.
1544 // Notifies the browser that we have session history information.
1545 // page_id: unique ID that allows us to distinguish between history entries.
1550 // Notifies the browser that a document has been loaded in a frame.
1554 // Notifies the browser that a frame finished loading.
1560 // Changes the title for the page in the UI when the page is navigated or the
1561 // title changes.
1567 // Change the encoding name of the page in UI when the page has detected
1568 // proper encoding name.
1572 // Notifies the browser that we want to show a destination url for a potential
1573 // action (e.g. when the user is hovering over a link).
1575 int32,
1576 GURL)
1578 // Sent when the renderer starts loading the page. This corresponds to
1579 // WebKit's notion of the throbber starting. Note that sometimes you may get
1580 // duplicates of these during a single load.
1583 // Sent when the renderer is done loading a page. This corresponds to WebKit's
1584 // notion of the throbber stopping.
1587 // Sent when the renderer main frame has made progress loading.
1591 // Sent when the renderer main frame sets its opener to null, disowning it for
1592 // the lifetime of the window.
1595 // Sent when the document element is available for the top-level frame. This
1596 // happens after the page starts loading, but before all resources are
1597 // finished.
1600 // Sent when after the onload handler has been invoked for the document
1601 // in the top-level frame.
1605 // Sent when the renderer loads a resource from its memory cache.
1606 // The security info is non empty if the resource was originally loaded over
1607 // a secure connection.
1608 // Note: May only be sent once per URL per frame per committed load.
1616 // Sent when the renderer displays insecure content in a secure page.
1619 // Sent when the renderer runs insecure content in a secure origin.
1631 // Tells the render view that a ViewHostMsg_PaintAtSize message was
1632 // processed, and the DIB is ready for use. |tag| has the same value that
1633 // the tag sent along with ViewMsg_PaintAtSize.
1638 // Sent to update part of the view. In response to this message, the host
1639 // generates a ViewMsg_UpdateRect_ACK message.
1641 ViewHostMsg_UpdateRect_Params)
1643 // Sent to unblock the browser's UI thread if it is waiting on an UpdateRect,
1644 // which may get delayed until the browser's UI unblocks.
1647 // Sent by the renderer when accelerated compositing is enabled or disabled to
1648 // notify the browser whether or not is should do painting.
1655 // Message sent from renderer to the browser when focus changes inside the
1656 // webpage. The parameter says whether the newly focused element needs
1657 // keyboard input (true for textfields, text areas and content editable divs).
1662 WebCursor)
1664 // Used to set a cookie. The cookie is set asynchronously, but will be
1665 // available to a subsequent ViewHostMsg_GetCookies request.
1672 // Used to get cookies for the given URL. This may block waiting for a
1673 // previous SetCookie message to be processed.
1680 // Used to get raw cookie information for the given URL. This may block
1681 // waiting for a previous SetCookie message to be processed.
1688 // Used to delete cookie for the given URL and name
1693 // Used to check if cookies are enabled for the given URL. This may block
1694 // waiting for a previous SetCookie message to be processed.
1700 // Used to get the list of plugins
1705 #if defined(OS_WIN)
1712 // Asks the browser for the user's monitor profile.
1715 #endif
1717 // Get the list of proxies to use for |url|, as a semicolon delimited list
1718 // of "<TYPE> <HOST>:<PORT>" | "DIRECT".
1724 // A renderer sends this to the browser process when it wants to create a
1725 // worker. The browser will create the worker process if necessary, and
1726 // will return the route id on success. On error returns MSG_ROUTING_NONE.
1728 ViewHostMsg_CreateWorker_Params,
1731 // This message is sent to the browser to see if an instance of this shared
1732 // worker already exists. If so, it returns exists == true. If a
1733 // non-empty name is passed, also validates that the url matches the url of
1734 // the existing worker. If a matching worker is found, the passed-in
1735 // document_id is associated with that worker, to ensure that the worker
1736 // stays alive until the document is detached.
1737 // The route_id returned can be used to forward messages to the worker via
1738 // ForwardToWorker if it exists, otherwise it should be passed in to any
1739 // future call to CreateWorker to avoid creating duplicate workers.
1741 ViewHostMsg_CreateWorker_Params,
1746 // A renderer sends this to the browser process when a document has been
1747 // detached. The browser will use this to constrain the lifecycle of worker
1748 // processes (SharedWorkers are shut down when their last associated document
1749 // is detached).
1753 // Wraps an IPC message that's destined to the worker on the renderer->browser
1754 // hop.
1758 // Tells the browser that a specific Appcache manifest in the current page
1759 // was accessed.
1764 // Initiates a download based on user actions like 'ALT+click'.
1770 // Used to go to the session history entry at the given offset (ie, -1 will
1771 // return the "back" item).
1775 // Sent from an inactive renderer for the browser to route to the active
1776 // renderer, instructing it to close.
1779 // Sent to the browser from an inactive renderer to post a message to the
1780 // active renderer.
1782 ViewMsg_PostMessage_Params)
1792 // Requests that the given URL be opened in the specified manner.
1795 // Notifies that the preferred size of the content changed.
1799 // Notifies that the scroll offset changed.
1800 // This is different from ViewHostMsg_UpdateRect in that ViewHostMsg_UpdateRect
1801 // is not sent at all when threaded compositing is enabled while
1802 // ViewHostMsg_DidChangeScrollOffset works properly in this case.
1805 // Notifies that the pinned-to-side state of the content changed.
1810 // Notifies that the scrollbars-visible state of the content changed.
1815 // Notifies that the number of JavaScript scroll handlers changed.
1819 // Notifies whether there are JavaScript touch event handlers or not.
1823 // A message from HTML-based UI. When (trusted) Javascript calls
1824 // send(message, args), this message is sent to the browser.
1830 // A renderer sends this to the browser process when it wants to create a ppapi
1831 // plugin. The browser will create the plugin process if necessary, and will
1832 // return a handle to the channel on success.
1833 //
1834 // The plugin_child_id is the ChildProcessHost ID assigned in the browser
1835 // process. This ID is valid only in the context of the browser process and is
1836 // used to identify the proper process when the renderer notifies it that the
1837 // plugin is hung.
1838 //
1839 // On error an empty string and null handles are returned.
1846 // Notification that a plugin has created a new plugin instance. The parameters
1847 // indicate:
1848 // -The plugin process ID that we're creating the instance for.
1849 // -The instance ID of the instance being created.
1850 // -A PepperRendererInstanceData struct which contains properties from the
1851 // renderer which are associated with the plugin instance. This includes the
1852 // routing ID of the associated render view and the URL of plugin.
1853 // -Whether the plugin we're creating an instance for is external or internal.
1854 //
1855 // This message must be sync even though it returns no parameters to avoid
1856 // a race condition with the plugin process. The plugin process sends messages
1857 // to the browser that assume the browser knows about the instance. We need to
1858 // make sure that the browser actually knows about the instance before we tell
1859 // the plugin to run.
1861 ViewHostMsg_DidCreateOutOfProcessPepperInstance,
1867 // Notification that a plugin has destroyed an instance. This is the opposite of
1868 // the "DidCreate" message above.
1874 // Message from the renderer to the browser indicating the in-process instance
1875 // has been created.
1880 // Message from the renderer to the browser indicating the in-process instance
1881 // has been destroyed.
1885 // A renderer sends this to the browser process when it wants to
1886 // create a ppapi broker. The browser will create the broker process
1887 // if necessary, and will return a handle to the channel on success.
1888 // On error an empty string is returned.
1889 // The browser will respond with ViewMsg_PpapiBrokerChannelCreated.
1894 // A renderer sends this to the browser process when it wants to access a PPAPI
1895 // broker. In contrast to ViewHostMsg_OpenChannelToPpapiBroker, this is called
1896 // for every connection.
1897 // The browser will respond with ViewMsg_PpapiBrokerPermissionResult.
1903 #if defined(USE_X11)
1904 // A renderer sends this when it needs a browser-side widget for
1905 // hosting a windowed plugin. id is the XID of the plugin window, for which
1906 // the container is created.
1910 // Destroy a plugin container previously created using CreatePluginContainer.
1911 // id is the XID of the plugin window corresponding to the container that is
1912 // to be destroyed.
1915 #endif
1917 // Send the tooltip text for the current mouse position to the browser.
1925 // Notification that the text selection has changed.
1926 // Note: The secound parameter is the character based offset of the
1927 // base::string16
1928 // text in the document.
1934 // Notification that the selection bounds have changed.
1936 ViewHostMsg_SelectionBounds_Params)
1938 // Asks the browser to open the color chooser.
1944 // Asks the browser to end the color chooser.
1947 // Change the selected color in the color chooser.
1952 // Asks the browser to display the file chooser. The result is returned in a
1953 // ViewHost_RunFileChooserResponse message.
1957 // Asks the browser to enumerate a directory. This is equivalent to running
1958 // the file chooser in directory-enumeration mode and having the user select
1959 // the given directory. The result is returned in a
1960 // ViewMsg_EnumerateDirectoryResponse message.
1965 // Tells the browser to move the focus to the next (previous if reverse is
1966 // true) focusable element.
1970 // Required for opening a date/time dialog
1979 // Required for updating text input state.
1983 // Required for cancelling an ongoing input method composition.
1986 // WebKit and JavaScript error messages to log to the console
1987 // or debugger UI.
1994 // Displays a box to confirm that the user wants to navigate away from the
1995 // page. Replies true if yes, false otherwise, the reply string is ignored,
1996 // but is included so that we can use OnJavaScriptMessageBoxClosed.
2004 // Sent when the renderer changes the zoom level for a particular url, so the
2005 // browser can update its records. If remember is true, then url is used to
2006 // update the zoom level for all pages in that site. Otherwise, the render
2007 // view's id is used so that only the menu is updated.
2013 // Updates the minimum/maximum allowed zoom percent for this tab from the
2014 // default values. If |remember| is true, then the zoom setting is applied to
2015 // other pages in the site and is saved, otherwise it only applies to this
2016 // tab.
2022 // Notify the browser that this render process can or can't be suddenly
2023 // terminated.
2027 // Informs the browser of updated frame names.
2044 // This message is synthesized by GpuProcessHost to pass through a swap message
2045 // to the RenderWidgetHelper. This allows GetBackingStore to block for either a
2046 // software or GPU frame.
2048 ViewHostMsg_CompositorSurfaceBuffersSwapped,
2055 // Sent by the compositor when input scroll events are dropped due to bounds
2056 // restricions on the root scroll offset.
2061 // Sent by the compositor when a flinging animation is stopped.
2064 // Reply to a snapshot request containing whether snapshotting succeeded and the
2065 // SkBitmap if it succeeded.
2070 //---------------------------------------------------------------------------
2071 // Request for cryptographic operation messages:
2072 // These are messages from the renderer to the browser to perform a
2073 // cryptographic operation.
2075 // Asks the browser process to generate a keypair for grabbing a client
2076 // certificate from a CA (<keygen> tag), and returns the signed public
2077 // key and challenge string.
2084 // Message sent from the renderer to the browser to request that the browser
2085 // cache |data| associated with |url|.
2091 // Displays a JavaScript out-of-memory message in the infobar.
2094 // Register a new handler for URL requests with the given scheme.
2101 // Stores new inspector setting in the profile.
2102 // TODO(jam): this should be in the chrome module
2107 // Puts the browser into "tab fullscreen" mode for the sending renderer.
2108 // See the comment in chrome/browser/ui/browser.h for more details.
2112 // Send back a string to be recorded by UserMetrics.
2116 // Notifies the browser that the page was or was not saved as MHTML.
2131 // Notifies the browser of an event occurring in the media pipeline.
2135 // Requests to lock the mouse. Will result in a ViewMsg_LockMouse_ACK message
2136 // being sent back.
2137 // |privileged| is used by Pepper Flash. If this flag is set to true, we won't
2138 // pop up a bubble to ask for user permission or take mouse lock content into
2139 // account.
2145 // Requests to unlock the mouse. A ViewMsg_MouseLockLost message will be sent
2146 // whenever the mouse is unlocked (which may or may not be caused by
2147 // ViewHostMsg_UnlockMouse).
2150 // Notifies that the initial empty document of a view has been accessed.
2151 // After this, it is no longer safe to show a pending navigation's URL without
2152 // making a URL spoof possible.
2155 // Following message is used to communicate the values received by the
2156 // callback binding the JS to Cpp.
2157 // An instance of browser that has an automation host listening to it can
2158 // have a javascript send a native value (string, number, boolean) to the
2159 // listener in Cpp. (DomAutomationController)
2164 // Notifies that multiple touch targets may have been pressed, and to show
2165 // the disambiguation popup.
2171 // Sent by the renderer process to check whether client 3D APIs
2172 // (Pepper 3D, WebGL) are explicitly blocked.
2179 // Sent by the renderer process to indicate that a context was lost by
2180 // client 3D content (Pepper 3D, WebGL) running on the page at the
2181 // given URL.
2187 // Notifies the browser that document has parsed the body. This is used by the
2188 // ResourceScheduler as an indication that bandwidth contention won't block
2189 // first paint.
2192 // Notification that the urls for the favicon of a site has been determined.
2197 // Sent once a paint happens after the first non empty layout. In other words
2198 // after the page has painted something.
2202 // Sent by the renderer to the browser to start a vibration with the given
2203 // duration.
2207 // Sent by the renderer to the browser to cancel the currently running
2208 // vibration, if there is one.
2211 // Message sent from renderer to the browser when the element that is focused
2212 // has been touched. A bool is passed in this message which indicates if the
2213 // node is editable.
2217 // Message sent from the renderer to the browser when an HTML form has failed
2218 // validation constraints.
2224 // Message sent from the renderer to the browser when a HTML form validation
2225 // message should be hidden from view.
2228 // Message sent from the renderer to the browser when the suggested co-ordinates
2229 // of the anchor for a HTML form validation message have changed.
2233 #if defined(OS_ANDROID)
2234 // Response to ViewMsg_FindMatchRects.
2235 //
2236 // |version| will contain the current version number of the renderer's find
2237 // match list (incremented whenever they change), which should be passed in the
2238 // next call to ViewMsg_FindMatchRects.
2239 //
2240 // |rects| will either contain a list of the enclosing rects of all matches
2241 // found by the most recent Find operation, or will be empty if |version| is not
2242 // greater than the |current_version| passed to ViewMsg_FindMatchRects (hence
2243 // your locally cached rects should still be valid). The rect coords will be
2244 // custom normalized fractions of the document size. The rects will be sorted by
2245 // frame traversal order starting in the main frame, then by dom order.
2246 //
2247 // |active_rect| will contain the bounding box of the active find-in-page match
2248 // marker, in similarly normalized coords (or an empty rect if there isn't one).
2254 // Start an android intent with the given URI.
2258 // Message sent when the renderer changed the background color for the view.
2262 // This message runs the MediaCodec for decoding audio for webaudio.
2268 // Sent by renderer to request a ViewMsg_BeginFrame message for upcoming
2269 // display events. If |enabled| is true, the BeginFrame message will continue
2270 // to be be delivered until the notification is disabled.
2274 // Reply to the ViewMsg_ExtractSmartClipData message.
2275 // TODO(juhui24.lee@samsung.com): this should be changed to a vector of structs
2276 // instead of encoding the data as a string which is not allowed normally. Since
2277 // ths is only used in Android WebView, it's allowed temporarily.
2278 // http://crbug.com/330872
2281 #elif defined(OS_MACOSX)
2282 // Request that the browser load a font into shared memory for us.
2289 // Informs the browser that a plugin has gained or lost focus.
2294 // Instructs the browser to start plugin IME.
2297 #elif defined(OS_WIN)
2298 // Request that the given font characters be loaded by the browser so it's
2299 // cached by the OS. Please see RenderMessageFilter::OnPreCacheFontCharacters
2300 // for details.
2304 #endif
2306 #if defined(OS_POSIX)
2307 // On POSIX, we cannot allocated shared memory from within the sandbox, so
2308 // this call exists for the renderer to ask the browser to allocate memory
2309 // on its behalf. We return a file descriptor to the POSIX shared memory.
2310 // If the |cache_in_browser| flag is |true|, then a copy of the shmem is kept
2311 // by the browser, and it is the caller's repsonsibility to send a
2312 // ViewHostMsg_FreeTransportDIB message in order to release the cached shmem.
2313 // In all cases, the caller is responsible for deleting the resulting
2314 // TransportDIB.
2320 // Since the browser keeps handles to the allocated transport DIBs, this
2321 // message is sent to tell the browser that it may release them when the
2322 // renderer is finished with them.
2325 #endif
2327 #if defined(OS_MACOSX) || defined(OS_WIN) || defined(USE_AURA)
2328 // On MACOSX, WIN and AURA IME can request composition character bounds
2329 // synchronously (see crbug.com/120597). This IPC message sends the character
2330 // bounds after every composition change to always have correct bound info.
2334 #endif
2336 // Adding a new message? Stick to the sort order above: first platform
2337 // independent ViewMsg, then ifdefs for platform specific ViewMsg, then platform
2338 // independent ViewHostMsg, then ifdefs for platform specific ViewHostMsg.