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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.
64 #if defined(OS_MACOSX)
66 #endif
68 #undef IPC_MESSAGE_EXPORT
69 #define IPC_MESSAGE_EXPORT CONTENT_EXPORT
71 #define IPC_MESSAGE_START ViewMsgStart
99 #if defined(OS_MACOSX)
104 #endif
183 #if defined(OS_MACOSX)
195 #if defined(OS_ANDROID)
198 #endif
217 #if defined(OS_ANDROID)
219 #endif
321 // Routing ID of the view initiating the open.
324 // True if this open request came in the context of a user gesture.
327 // Type of window requested.
330 // The session storage namespace ID this view should use.
333 // The name of the resulting frame that should be created (empty if none
334 // has been specified).
337 // The frame identifier of the frame initiating the open.
340 // The URL of the frame initiating the open.
343 // The URL of the top frame containing the opener.
346 // The security origin of the frame initiating the open.
349 // Whether the opener will be suppressed in the new window, in which case
350 // scripting the new window is not allowed.
353 // Whether the window should be opened in the foreground, background, etc.
356 // The URL that will be loaded in the new window (empty if none has been
357 // sepcified).
360 // The referrer that will be used to load |target_url| (empty if none has
361 // been specified).
364 // The window features to use for the new view.
369 // URL for the worker script.
372 // Name for a SharedWorker, otherwise empty string.
375 // The ID of the parent document (unique within parent renderer).
378 // RenderView routing id used to send messages back to the parent.
381 // The route ID to associate with the worker. If MSG_ROUTING_NONE is passed,
382 // a new unique ID is created and assigned to the worker.
385 // The ID of the appcache the main shared worker script resource was loaded
386 // from, only valid for shared workers.
406 // The frame ID for the failure report.
408 // True if this is the top-most frame.
410 // Error code as reported in the DidFailProvisionalLoad callback.
412 // An error message generated from the error_code. This can be an empty
413 // string if we were unable to find a meaningful description.
415 // The URL that the error is reported for.
417 // True if the failure is the result of navigating to a POST again
418 // and we're going to show the POST interstitial.
422 // Parameters structure for ViewHostMsg_FrameNavigate, which has too many data
423 // parameters to be reasonably put in a predefined IPC message.
427 // The frame ID for this navigation. The frame ID uniquely identifies the
428 // frame the navigation happened in for a given renderer.
431 // Information regarding the security of the connection (empty if the
432 // connection was not secure).
435 // The gesture that initiated this navigation.
438 // True if this was a post request.
441 // The POST body identifier. -1 if it doesn't exist.
444 // Whether the frame navigation resulted in no change to the documents within
445 // the page. For example, the navigation may have just resulted in scrolling
446 // to a named anchor.
449 // The status code of the HTTP request.
452 // True if the connection was proxied. In this case, socket_address
453 // will represent the address of the proxy, rather than the remote host.
456 // Serialized history item state to store in the navigation entry.
459 // Original request's URL.
462 // User agent override used to navigate.
465 // Notifies the browser that for this navigation, the session history was
466 // successfully cleared.
487 // This message is used for supporting popup menus on Mac OS X using native
488 // Cocoa controls. The renderer sends us this message which we use to populate
489 // the popup menu.
491 // Position on the screen.
494 // The height of each item in the menu.
497 // The size of the font to use for those items.
500 // The currently selected (displayed) item in the menu.
503 // The entire list of items in the popup menu.
506 // Whether items should be right-aligned.
509 // Whether this is a multi-select popup.
514 // The type of input field
517 // The value of the input field
520 // The cursor position of the current selection start, or the caret position
521 // if nothing is selected
524 // The cursor position of the current selection end, or the caret position
525 // if nothing is selected
528 // The start position of the current composition, or -1 if there is none
531 // The end position of the current composition, or -1 if there is none
534 // Whether or not inline composition can be performed for the current input.
537 // Whether or not the IME should be shown as a result of this update. Even if
538 // true, the IME will only be shown if the type is appropriate (e.g. not
539 // TEXT_INPUT_TYPE_NONE).
542 // Whether an acknowledgement is required for this update.
547 // The bitmap to be painted into the view at the locations specified by
548 // update_rects.
551 // The position and size of the bitmap.
554 // The scroll delta. Only one of the delta components can be non-zero, and if
555 // they are both zero, then it means there is no scrolling and the scroll_rect
556 // is ignored.
559 // The rectangular region to scroll.
562 // The scroll offset of the render view.
565 // The regions of the bitmap (in view coords) that contain updated pixels.
566 // In the case of scrolling, this includes the scroll damage rect.
569 // The size of the RenderView when this message was generated. This is
570 // included so the host knows how large the view is from the perspective of
571 // the renderer process. This is necessary in case a resize operation is in
572 // progress. If auto-resize is enabled, this should update the corresponding
573 // view size.
576 // New window locations for plugin child windows.
578 plugin_window_moves)
580 // The following describes the various bits that may be set in flags:
581 //
582 // ViewHostMsg_UpdateRect_Flags::IS_RESIZE_ACK
583 // Indicates that this is a response to a ViewMsg_Resize message.
584 //
585 // ViewHostMsg_UpdateRect_Flags::IS_RESTORE_ACK
586 // Indicates that this is a response to a ViewMsg_WasShown message.
587 //
588 // ViewHostMsg_UpdateRect_Flags::IS_REPAINT_ACK
589 // Indicates that this is a response to a ViewMsg_Repaint message.
590 //
591 // If flags is zero, then this message corresponds to an unsolicited paint
592 // request by the render view. Any of the above bits may be set in flags,
593 // which would indicate that this paint message is an ACK for multiple
594 // request messages.
597 // Whether or not the renderer expects a ViewMsg_UpdateRect_ACK for this
598 // update. True for 2D painting, but false for accelerated compositing.
601 // All the above coordinates are in DIP. This is the scale factor needed
602 // to convert them to pixels.
605 // The latency information for the frame. Only valid when accelerated
606 // compositing is disabled.
611 // The page_id for this navigation, or -1 if it is a new navigation. Back,
612 // Forward, and Reload navigations should have a valid page_id. If the load
613 // succeeds, then this page_id will be reflected in the resultant
614 // ViewHostMsg_FrameNavigate message.
617 // If page_id is -1, then pending_history_list_offset will also be -1.
618 // Otherwise, it contains the offset into the history list corresponding to
619 // the current navigation.
622 // Informs the RenderView of where its current page contents reside in
623 // session history and the total size of the session history list.
627 // Informs the RenderView the session history should be cleared. In that
628 // case, the RenderView needs to notify the browser that the clearing was
629 // succesful when the navigation commits.
632 // The URL to load.
635 // Base URL for use in WebKit's SubstituteData.
636 // Is only used with data: URLs.
639 // History URL for use in WebKit's SubstituteData.
640 // Is only used with data: URLs.
643 // The URL to send in the "Referer" header field. Can be empty if there is
644 // no referrer.
647 // The type of transition.
650 // Opaque history state (received by ViewHostMsg_UpdateState).
653 // Type of navigation.
656 // The time the request was created
659 // Extra headers (separated by \n) to send during the request.
662 // The following two members identify a previous request that has been
663 // created before this navigation is being transferred to a new render view.
664 // This serves the purpose of recycling the old request.
665 // Unless this refers to a transferred navigation, these values are -1 and -1.
669 // Whether or not we should allow the url to download.
672 // Whether or not the user agent override string should be used.
675 // True if this was a post request.
678 // If is_post is true, holds the post_data information from browser. Empty
679 // otherwise.
682 // Whether or not this url should be allowed to access local file://
683 // resources.
686 // If not empty, which frame to navigate.
689 // The navigationStart time to expose to JS for this navigation.
694 // Renderer-wide preferences.
697 // Preferences for this view.
700 // The ID of the view to be created.
703 // The ID of the main frame hosted in the view.
706 // The ID of the rendering surface.
709 // The session storage namespace ID this view should use.
712 // The name of the frame associated with this view (or empty if none).
715 // The route ID of the opener RenderView if we need to set one
716 // (MSG_ROUTING_NONE otherwise).
719 // Whether the RenderView should initially be swapped out.
722 // Whether the RenderView should initially be hidden.
725 // The initial page ID to use for this view, which must be larger than any
726 // existing navigation that might be loaded in the view. Page IDs are unique
727 // to a view and are only updated by the renderer after this initial value.
730 // The properties of the screen associated with the view.
733 // The accessibility mode of the renderer.
736 // Specifies whether partially swapping composited buffers is
737 // allowed for a renderer. Partial swaps will be used if they are both
738 // allowed and supported.
743 // The serialized script value.
746 // When sent to the browser, this is the routing ID of the source frame in
747 // the source process. The browser replaces it with the routing ID of the
748 // equivalent (swapped out) frame in the destination process.
751 // The origin of the source frame.
754 // The origin for the message's target.
758 // Messages sent from the browser to the renderer.
760 // Tells the renderer to cancel an opened date/time dialog.
763 // Get all savable resource links from current webpage, include main
764 // frame and sub-frame.
768 // Get html data by serializing all frames of current page with lists
769 // which contain all resource links that have local copy.
775 // Tells the render side that a ViewHostMsg_LockMouse message has been
776 // processed. |succeeded| indicates whether the mouse has been successfully
777 // locked or not.
780 // Tells the render side that the mouse has been unlocked.
783 // Screen was rotated. Dispatched to the onorientationchange javascript API.
787 // Sent by the browser when the parameters for vsync alignment have changed.
792 // Set the top-level frame to the provided name.
796 // Sent to the RenderView when a new tab is swapped into an existing
797 // tab and the histories need to be merged. The existing tab has a history of
798 // |merged_history_length| which precedes the history of the new tab. All
799 // page_ids >= |minimum_page_id| in the new tab are appended to the history.
800 //
801 // For example, suppose the history of page_ids in the new tab's RenderView
802 // is [4 7 8]. This is merged into an existing tab with 3 history items, and
803 // all pages in the new tab with page_id >= 7 are to be preserved.
804 // The resulting page history is [-1 -1 -1 7 8].
809 // Tells the renderer to create a new view.
810 // This message is slightly different, the view it takes (via
811 // ViewMsg_New_Params) is the view to create, the message itself is sent as a
812 // non-view control message.
814 ViewMsg_New_Params)
816 // Reply in response to ViewHostMsg_ShowView or ViewHostMsg_ShowWidget.
817 // similar to the new command, but used when the renderer created a view
818 // first, and we need to update it.
821 // Sends updated preferences to the renderer.
825 // This passes a set of webkit preferences down to the renderer.
827 WebPreferences)
829 // Informs the renderer that the timezone has changed.
832 // Tells the render view to close.
844 // Tells the render view to change its size. A ViewHostMsg_UpdateRect message
845 // is generated in response provided new_size is not empty and not equal to
846 // the view's current size. The generated ViewHostMsg_UpdateRect message will
847 // have the IS_RESIZE_ACK flag set. It also receives the resizer rect so that
848 // we don't have to fetch it every time WebKit asks for it.
852 // Tells the render view that the resize rect has changed.
856 // Sent to inform the view that it was hidden. This allows it to reduce its
857 // resource utilization.
860 // Tells the render view that it is no longer hidden (see WasHidden), and the
861 // render view is expected to respond with a full repaint if needs_repainting
862 // is true. In that case, the generated ViewHostMsg_UpdateRect message will
863 // have the IS_RESTORE_ACK flag set. If needs_repainting is false, then this
864 // message does not trigger a message in response.
868 // Sent to inform the view that it was swapped out. This allows the process to
869 // exit if no other views are using it.
872 // Sent to render the view into the supplied transport DIB, resize
873 // the web widget to match the |page_size|, scale it by the
874 // appropriate scale to make it fit the |desired_size|, and return
875 // it. In response to this message, the host generates a
876 // ViewHostMsg_PaintAtSize_ACK message. Note that the DIB *must* be
877 // the right size to receive an RGBA image at the |desired_size|.
878 // |tag| is sent along with ViewHostMsg_PaintAtSize_ACK unmodified to
879 // identify the PaintAtSize message the ACK belongs to.
886 // Tells the render view that a ViewHostMsg_UpdateRect message was processed.
887 // This signals the render view that it can send another UpdateRect message.
890 // Tells the render view that a SwapBuffers was completed. Typically,
891 // SwapBuffers requests go from renderer -> GPU process -> browser. Most
892 // platforms still use the GfxCxt3D Echo for receiving the SwapBuffers Ack.
893 // Using Echo routes the ack from browser -> GPU process -> renderer, while this
894 // Ack goes directly from browser -> renderer. This is not used for the threaded
895 // compositor path.
898 // Tells the render widget that a smooth scroll completed.
901 // Tells the renderer to focus the first (last if reverse is true) focusable
902 // node.
906 // Executes custom context menu action that was provided from WebKit.
911 // Sent in response to a ViewHostMsg_ContextMenu to let the renderer know that
912 // the menu has been closed.
916 // Sent to inform the renderer to invoke a context menu.
917 // The parameter specifies the location in the render view's coordinates.
921 // Tells the renderer to perform the specified navigation, interrupting any
922 // existing navigation.
927 // Tells the renderer to reload the current focused frame
930 // Sent when the user wants to search for a word on the page (find in page).
936 // This message notifies the renderer that the user has closed the FindInPage
937 // window (and what action to take regarding the selection).
941 // Informs the renderer about various statistics the browser has (e.g.
942 // latency) regarding the frames that have been displayed.
946 // Replaces a date time input field.
950 // Copies the image at location x, y to the clipboard (if there indeed is an
951 // image at that location).
956 // Tells the renderer to perform the given action on the media player
957 // located at the given point.
962 // Tells the renderer to perform the given action on the plugin located at
963 // the given point.
968 // Request for the renderer to evaluate an xpath to a frame and execute a
969 // javascript: url in that frame's context. The message is completely
970 // asynchronous and no corresponding response message is sent back.
971 //
972 // frame_xpath contains the modified xpath notation to identify an inner
973 // subframe (starting from the root frame). It is a concatenation of
974 // number of smaller xpaths delimited by '\n'. Each chunk in the string can
975 // be evaluated to a frame in its parent-frame's context.
976 //
977 // Example: /html/body/iframe/\n/html/body/div/iframe/\n/frameset/frame[0]
978 // can be broken into 3 xpaths
979 // /html/body/iframe evaluates to an iframe within the root frame
980 // /html/body/div/iframe evaluates to an iframe within the level-1 iframe
981 // /frameset/frame[0] evaluates to first frame within the level-2 iframe
982 //
983 // jscript_url is the string containing the javascript: url to be executed
984 // in the target frame's context. The string should start with "javascript:"
985 // and continue with a valid JS text.
986 //
987 // If the fourth parameter is true the result is sent back to the renderer
988 // using the message ViewHostMsg_ScriptEvalResponse.
989 // ViewHostMsg_ScriptEvalResponse is passed the ID parameter so that the
990 // client can uniquely identify the request.
997 // Posts a message from a frame in another process to the current renderer.
999 ViewMsg_PostMessage_Params)
1001 // Requests that the RenderView's main frame sets its opener to null.
1004 // Request for the renderer to evaluate an xpath to a frame and insert css
1005 // into that frame's document. See ViewMsg_ScriptEvalRequest for details on
1006 // allowed xpath expressions.
1011 // Change the zoom level for the current main frame. If the level actually
1012 // changes, a ViewHostMsg_DidZoomURL message will be sent back to the browser
1013 // telling it what url got zoomed and what its current zoom level is.
1017 // Set the zoom level for the current main frame. If the level actually
1018 // changes, a ViewHostMsg_DidZoomURL message will be sent back to the browser
1019 // telling it what url got zoomed and what its current zoom level is.
1023 // Zooms the page by the factor defined in the renderer.
1029 // Set the zoom level for a particular url that the renderer is in the
1030 // process of loading. This will be stored, to be used if the load commits
1031 // and ignored otherwise.
1036 // Set the zoom level for a particular url, so all render views
1037 // displaying this url can update their zoom levels to match.
1038 // If scheme is empty, then only host is used for matching.
1044 // Change encoding of page in the renderer.
1048 // Reset encoding of page in the renderer back to default.
1051 // Used to tell a render view whether it should expose various bindings
1052 // that allow JS content extended privileges. See BindingsPolicy for valid
1053 // flag values.
1057 // Tell the renderer to add a property to the WebUI binding object. This
1058 // only works if we allowed WebUI bindings.
1063 // This message starts/stop monitoring the input method status of the focused
1064 // edit control of a renderer process.
1065 // Parameters
1066 // * is_active (bool)
1067 // Indicates if an input method is active in the browser process.
1068 // The possible actions when a renderer process receives this message are
1069 // listed below:
1070 // Value Action
1071 // true Start sending IPC message ViewHostMsg_ImeUpdateTextInputState
1072 // to notify the input method status of the focused edit control.
1073 // false Stop sending IPC message ViewHostMsg_ImeUpdateTextInputState.
1077 // This message sends a string being composed with an input method.
1079 ViewMsg_ImeSetComposition,
1085 // This message confirms an ongoing composition.
1091 // Sets the text composition to be between the given start and end offsets
1092 // in the currently focused editable field.
1098 // Selects between the given start and end offsets in the currently focused
1099 // editable field.
1104 // Deletes the current selection plus the specified number of characters before
1105 // and after the selection or caret.
1110 // Used to notify the render-view that we have received a target URL. Used
1111 // to prevent target URLs spamming the browser.
1115 // Sets the alternate error page URL (link doctor) for the renderer process.
1117 GURL)
1119 // Notifies the color chooser client that the user selected a color.
1122 // Notifies the color chooser client that the color chooser has ended.
1128 // Provides the results of directory enumeration.
1133 // When a renderer sends a ViewHostMsg_Focus to the browser process,
1134 // the browser has the option of sending a ViewMsg_CantFocus back to
1135 // the renderer.
1138 // Instructs the renderer to invoke the frame's shouldClose method, which
1139 // runs the onbeforeunload event handler. Expects the result to be returned
1140 // via ViewHostMsg_ShouldClose.
1143 // Instructs the renderer to swap out for a cross-site transition, including
1144 // running the unload event handler. Expects a SwapOut_ACK message when
1145 // finished.
1148 // Instructs the renderer to close the current page, including running the
1149 // onunload event handler.
1150 //
1151 // Expects a ClosePage_ACK message when finished.
1154 // Notifies the renderer about ui theme changes
1157 // Notifies the renderer that a paint is to be generated for the rectangle
1158 // passed in.
1162 // Notification that a move or resize renderer's containing window has
1163 // started.
1170 // Reply to ViewHostMsg_RequestMove, ViewHostMsg_ShowView, and
1171 // ViewHostMsg_ShowWidget to inform the renderer that the browser has
1172 // processed the move. The browser may have ignored the move, but it finished
1173 // processing. This is used because the renderer keeps a temporary cache of
1174 // the widget position while these asynchronous operations are in progress.
1177 // Used to instruct the RenderView to send back updates to the preferred size.
1180 // Used to instruct the RenderView to automatically resize and send back
1181 // updates for the new size.
1186 // Used to instruct the RenderView to disalbe automatically resize.
1190 // Changes the text direction of the currently selected input field (if any).
1194 // Tells the renderer to clear the focused node (if any).
1197 // Make the RenderView transparent and render it onto a custom background. The
1198 // background will be tiled in both directions if it is not large enough.
1202 // Used to tell the renderer not to add scrollbars with height and
1203 // width below a threshold.
1207 // Activate/deactivate the RenderView (i.e., set its controls' tint
1208 // accordingly, etc.).
1212 // Response message to ViewHostMsg_CreateShared/DedicatedWorker.
1213 // Sent when the worker has started.
1216 // The response to ViewHostMsg_AsyncOpenPepperFile.
1222 // Tells the renderer that the network state has changed and that
1223 // window.navigator.onLine should be updated for all WebViews.
1227 // Reply to ViewHostMsg_OpenChannelToPpapiBroker
1228 // Tells the renderer that the channel to the broker has been created.
1233 // Reply to ViewHostMsg_RequestPpapiBrokerPermission.
1234 // Tells the renderer whether permission to access to PPAPI broker was granted
1235 // or not.
1239 // Tells the renderer to empty its plugin list cache, optional reloading
1240 // pages containing plugins.
1244 // Used to instruct the RenderView to go into "view source" mode.
1247 // Instructs the renderer to save the current page to MHTML.
1252 // Temporary message to diagnose an unexpected condition in WebContentsImpl.
1256 // Change the accessibility mode in the renderer process.
1258 AccessibilityMode)
1260 // An acknowledge to ViewHostMsg_MultipleTargetsTouched to notify the renderer
1261 // process to release the magnified image.
1265 // Notifies the renderer that a snapshot has been retrieved.
1271 // Tells the renderer to suspend/resume the webkit timers.
1275 #if defined(OS_ANDROID)
1276 // Sent when the browser wants the bounding boxes of the current find matches.
1277 //
1278 // If match rects are already cached on the browser side, |current_version|
1279 // should be the version number from the ViewHostMsg_FindMatchRects_Reply
1280 // they came in, so the renderer can tell if it needs to send updated rects.
1281 // Otherwise just pass -1 to always receive the list of rects.
1282 //
1283 // There must be an active search string (it is probably most useful to call
1284 // this immediately after a ViewHostMsg_Find_Reply message arrives with
1285 // final_update set to true).
1289 // External popup menus.
1294 // Tells the renderer to try to revert to the zoom level we were at before
1295 // ViewMsg_ScrollFocusedEditableNodeIntoView was called.
1298 // This message relays the beginning or end of a batch event in the IME.
1302 // Notifies the renderer whether hiding/showing the top controls is enabled
1303 // and whether or not to animate to the proper state.
1311 // Sent by the browser when the renderer should generate a new frame.
1315 // Sent by the browser when an IME update that requires acknowledgement has been
1316 // processed on the browser side.
1319 // Sent by the browser when we should pause video playback.
1322 #elif defined(OS_MACOSX)
1323 // Let the RenderView know its window has changed visibility.
1327 // Let the RenderView know its window's frame has changed.
1332 // Message sent from the browser to the renderer when the user starts or stops
1333 // resizing the view.
1337 // Tell the renderer that plugin IME has completed.
1342 // External popup menus.
1345 #endif
1347 // Sent by the browser as a reply to ViewHostMsg_SwapCompositorFrame.
1352 // Sent by browser to tell renderer compositor that some resources that were
1353 // given to the browser in a swap are not being used anymore.
1358 // Sent by the browser to ask the renderer for a snapshot of the current view.
1362 // -----------------------------------------------------------------------------
1363 // Messages sent from the renderer to the browser.
1365 // Sent by the renderer when it is creating a new window. The browser creates
1366 // a tab for it and responds with a ViewMsg_CreatingNew_ACK. If route_id is
1367 // MSG_ROUTING_NONE, the view couldn't be created.
1369 ViewHostMsg_CreateWindow_Params,
1375 // Similar to ViewHostMsg_CreateWindow, except used for sub-widgets, like
1376 // <select> dropdowns. This message is sent to the WebContentsImpl that
1377 // contains the widget being created.
1384 // Similar to ViewHostMsg_CreateWidget except the widget is a full screen
1385 // window.
1391 // Asks the browser for a unique routing ID.
1395 // Asks the browser for the default audio hardware configuration.
1400 // Asks the browser for CPU usage of the renderer process in percents.
1404 // Asks the browser for the user's monitor profile.
1408 // Asks the browser for the renderer process memory size stats.
1413 // These three messages are sent to the parent RenderViewHost to display the
1414 // page/widget that was created by
1415 // CreateWindow/CreateWidget/CreateFullscreenWidget. routing_id
1416 // refers to the id that was returned from the Create message above.
1417 // The initial_position parameter is a rectangle in screen coordinates.
1418 //
1419 // FUTURE: there will probably be flags here to control if the result is
1420 // in a new window.
1431 // Message to show a full screen widget.
1435 // This message is sent after ViewHostMsg_ShowView to cause the RenderView
1436 // to run in a modal fashion until it is closed.
1440 // Indicates the renderer is ready in response to a ViewMsg_New or
1441 // a ViewMsg_CreatingNew_ACK.
1444 // Indicates the renderer process is gone. This actually is sent by the
1445 // browser process to itself, but keeps the interface cleaner.
1450 // Sent by the renderer process to request that the browser close the view.
1451 // This corresponds to the window.close() API, and the browser may ignore
1452 // this message. Otherwise, the browser will generates a ViewMsg_Close
1453 // message to close the view.
1456 // Send in response to a ViewMsg_UpdateScreenRects so that the renderer can
1457 // throttle these messages.
1460 // Sent by the renderer process to request that the browser move the view.
1461 // This corresponds to the window.resizeTo() and window.moveTo() APIs, and
1462 // the browser may ignore this message.
1466 // Sent by the renderer process to notify the browser that the web page has
1467 // programmatically scrolled.
1471 // Notifies the browser that a frame in the view has changed. This message
1472 // has a lot of parameters and is packed/unpacked by functions defined in
1473 // render_messages.h.
1475 ViewHostMsg_FrameNavigate_Params)
1477 // Used to tell the parent that the user right clicked on an area of the
1478 // content area, and a context menu should be shown for it. The params
1479 // object contains information about the node(s) that were selected when the
1480 // user right clicked.
1483 // Message to show a popup menu using native cocoa controls (Mac only).
1485 ViewHostMsg_ShowPopup_Params)
1487 // Response from ViewMsg_ScriptEvalRequest. The ID is the parameter supplied
1488 // to ViewMsg_ScriptEvalRequest. The result has the value returned by the
1489 // script as its only element, one of Null, Boolean, Integer, Real, Date, or
1490 // String.
1495 // Result of string search in the page.
1496 // Response to ViewMsg_Find with the results of the requested find-in-page
1497 // search, the number of matches found and the selection rect (in screen
1498 // coordinates) for the string found. If |final_update| is false, it signals
1499 // that this is not the last Find_Reply message - more will be sent as the
1500 // scoping effort continues.
1508 // Provides the result from running OnMsgShouldClose. |proceed| matches the
1509 // return value of the the frame's shouldClose method (which includes the
1510 // onbeforeunload handler): true if the user decided to proceed with leaving
1511 // the page.
1517 // Indicates that the current renderer has swapped out, after a SwapOut
1518 // message.
1521 // Indicates that the current page has been closed, after a ClosePage
1522 // message.
1525 // Notifies the browser that media has started/stopped playing.
1532 // Notifies the browser that we have session history information.
1533 // page_id: unique ID that allows us to distinguish between history entries.
1538 // Notifies the browser that a document has been loaded in a frame.
1542 // Notifies the browser that a frame finished loading.
1548 // Changes the title for the page in the UI when the page is navigated or the
1549 // title changes.
1555 // Change the encoding name of the page in UI when the page has detected
1556 // proper encoding name.
1560 // Notifies the browser that we want to show a destination url for a potential
1561 // action (e.g. when the user is hovering over a link).
1563 int32,
1564 GURL)
1566 // Sent when the renderer starts loading the page. This corresponds to
1567 // WebKit's notion of the throbber starting. Note that sometimes you may get
1568 // duplicates of these during a single load.
1571 // Sent when the renderer is done loading a page. This corresponds to WebKit's
1572 // notion of the throbber stopping.
1575 // Sent when the renderer main frame has made progress loading.
1579 // Sent when the renderer main frame sets its opener to null, disowning it for
1580 // the lifetime of the window.
1583 // Sent when the document element is available for the top-level frame. This
1584 // happens after the page starts loading, but before all resources are
1585 // finished.
1588 // Sent when after the onload handler has been invoked for the document
1589 // in the top-level frame.
1593 // Sent when the renderer loads a resource from its memory cache.
1594 // The security info is non empty if the resource was originally loaded over
1595 // a secure connection.
1596 // Note: May only be sent once per URL per frame per committed load.
1604 // Sent when the renderer displays insecure content in a secure page.
1607 // Sent when the renderer runs insecure content in a secure origin.
1612 // Sent when the renderer starts a provisional load for a frame.
1626 // Sent when the renderer fails a provisional load with an error.
1628 ViewHostMsg_DidFailProvisionalLoadWithError_Params)
1630 // Tells the render view that a ViewHostMsg_PaintAtSize message was
1631 // processed, and the DIB is ready for use. |tag| has the same value that
1632 // the tag sent along with ViewMsg_PaintAtSize.
1637 // Sent to update part of the view. In response to this message, the host
1638 // generates a ViewMsg_UpdateRect_ACK message.
1640 ViewHostMsg_UpdateRect_Params)
1642 // Sent to unblock the browser's UI thread if it is waiting on an UpdateRect,
1643 // which may get delayed until the browser's UI unblocks.
1646 // Sent by the renderer when accelerated compositing is enabled or disabled to
1647 // notify the browser whether or not is should do painting.
1674 // Message sent from renderer to the browser when focus changes inside the
1675 // webpage. The parameter says whether the newly focused element needs
1676 // keyboard input (true for textfields, text areas and content editable divs).
1681 WebCursor)
1683 // Used to set a cookie. The cookie is set asynchronously, but will be
1684 // available to a subsequent ViewHostMsg_GetCookies request.
1690 // Used to get cookies for the given URL. This may block waiting for a
1691 // previous SetCookie message to be processed.
1697 // Used to get raw cookie information for the given URL. This may block
1698 // waiting for a previous SetCookie message to be processed.
1705 // Used to delete cookie for the given URL and name
1710 // Used to check if cookies are enabled for the given URL. This may block
1711 // waiting for a previous SetCookie message to be processed.
1717 // Used to get the list of plugins
1722 // Return information about a plugin for the given URL and MIME
1723 // type. If there is no matching plugin, |found| is false.
1724 // |actual_mime_type| is the actual mime type supported by the
1725 // found plugin.
1735 // A renderer sends this to the browser process when it wants to
1736 // create a plugin. The browser will create the plugin process if
1737 // necessary, and will return a handle to the channel on success.
1738 // On error an empty string is returned.
1747 #if defined(OS_WIN)
1753 #endif
1755 // Get the list of proxies to use for |url|, as a semicolon delimited list
1756 // of "<TYPE> <HOST>:<PORT>" | "DIRECT".
1762 // A renderer sends this to the browser process when it wants to create a
1763 // worker. The browser will create the worker process if necessary, and
1764 // will return the route id on success. On error returns MSG_ROUTING_NONE.
1766 ViewHostMsg_CreateWorker_Params,
1769 // This message is sent to the browser to see if an instance of this shared
1770 // worker already exists. If so, it returns exists == true. If a
1771 // non-empty name is passed, also validates that the url matches the url of
1772 // the existing worker. If a matching worker is found, the passed-in
1773 // document_id is associated with that worker, to ensure that the worker
1774 // stays alive until the document is detached.
1775 // The route_id returned can be used to forward messages to the worker via
1776 // ForwardToWorker if it exists, otherwise it should be passed in to any
1777 // future call to CreateWorker to avoid creating duplicate workers.
1779 ViewHostMsg_CreateWorker_Params,
1784 // A renderer sends this to the browser process when a document has been
1785 // detached. The browser will use this to constrain the lifecycle of worker
1786 // processes (SharedWorkers are shut down when their last associated document
1787 // is detached).
1791 // Wraps an IPC message that's destined to the worker on the renderer->browser
1792 // hop.
1796 // Tells the browser that a specific Appcache manifest in the current page
1797 // was accessed.
1802 // Initiates a download based on user actions like 'ALT+click'.
1808 // Used to go to the session history entry at the given offset (ie, -1 will
1809 // return the "back" item).
1813 // Sent from an inactive renderer for the browser to route to the active
1814 // renderer, instructing it to close.
1817 // Sent to the browser from an inactive renderer to post a message to the
1818 // active renderer.
1820 ViewMsg_PostMessage_Params)
1830 // Requests that the given URL be opened in the specified manner.
1833 // Notifies that the preferred size of the content changed.
1837 // Notifies that the scroll offset changed.
1838 // This is different from ViewHostMsg_UpdateRect in that ViewHostMsg_UpdateRect
1839 // is not sent at all when threaded compositing is enabled while
1840 // ViewHostMsg_DidChangeScrollOffset works properly in this case.
1843 // Notifies that the pinned-to-side state of the content changed.
1848 // Notifies that the scrollbars-visible state of the content changed.
1853 // Notifies that the number of JavaScript scroll handlers changed.
1857 // Notifies whether there are JavaScript touch event handlers or not.
1861 // A message from HTML-based UI. When (trusted) Javascript calls
1862 // send(message, args), this message is sent to the browser.
1868 // Requests a snapshot of the given window.
1872 // A renderer sends this to the browser process when it wants to create a ppapi
1873 // plugin. The browser will create the plugin process if necessary, and will
1874 // return a handle to the channel on success.
1875 //
1876 // The plugin_child_id is the ChildProcessHost ID assigned in the browser
1877 // process. This ID is valid only in the context of the browser process and is
1878 // used to identify the proper process when the renderer notifies it that the
1879 // plugin is hung.
1880 //
1881 // On error an empty string and null handles are returned.
1888 // Notification that a plugin has created a new plugin instance. The parameters
1889 // indicate:
1890 // -The plugin process ID that we're creating the instance for.
1891 // -The instance ID of the instance being created.
1892 // -A PepperRendererInstanceData struct which contains properties from the
1893 // renderer which are associated with the plugin instance. This includes the
1894 // routing ID of the associated render view and the URL of plugin.
1895 // -Whether the plugin we're creating an instance for is external or internal.
1896 //
1897 // This message must be sync even though it returns no parameters to avoid
1898 // a race condition with the plugin process. The plugin process sends messages
1899 // to the browser that assume the browser knows about the instance. We need to
1900 // make sure that the browser actually knows about the instance before we tell
1901 // the plugin to run.
1903 ViewHostMsg_DidCreateOutOfProcessPepperInstance,
1909 // Notification that a plugin has destroyed an instance. This is the opposite of
1910 // the "DidCreate" message above.
1916 // Message from the renderer to the browser indicating the in-process instance
1917 // has been created.
1922 // Message from the renderer to the browser indicating the in-process instance
1923 // has been destroyed.
1927 // A renderer sends this to the browser process when it wants to
1928 // create a ppapi broker. The browser will create the broker process
1929 // if necessary, and will return a handle to the channel on success.
1930 // On error an empty string is returned.
1931 // The browser will respond with ViewMsg_PpapiBrokerChannelCreated.
1936 // Opens a Pepper file asynchronously. The response returns a file descriptor
1937 // and an error code from base/platform_file.h.
1944 // A renderer sends this to the browser process when it wants to access a PPAPI
1945 // broker. In contrast to ViewHostMsg_OpenChannelToPpapiBroker, this is called
1946 // for every connection.
1947 // The browser will respond with ViewMsg_PpapiBrokerPermissionResult.
1953 #if defined(USE_X11)
1954 // A renderer sends this when it needs a browser-side widget for
1955 // hosting a windowed plugin. id is the XID of the plugin window, for which
1956 // the container is created.
1960 // Destroy a plugin container previously created using CreatePluginContainer.
1961 // id is the XID of the plugin window corresponding to the container that is
1962 // to be destroyed.
1965 #endif
1967 // Send the tooltip text for the current mouse position to the browser.
1975 // Notification that the text selection has changed.
1976 // Note: The secound parameter is the character based offset of the string16
1977 // text in the document.
1983 // Notification that the selection bounds have changed.
1985 ViewHostMsg_SelectionBounds_Params)
1987 // Asks the browser to open the color chooser.
1992 // Asks the browser to end the color chooser.
1995 // Change the selected color in the color chooser.
2000 // Asks the browser to display the file chooser. The result is returned in a
2001 // ViewHost_RunFileChooserResponse message.
2005 // Asks the browser to enumerate a directory. This is equivalent to running
2006 // the file chooser in directory-enumeration mode and having the user select
2007 // the given directory. The result is returned in a
2008 // ViewMsg_EnumerateDirectoryResponse message.
2013 // Tells the browser to move the focus to the next (previous if reverse is
2014 // true) focusable element.
2018 // Required for opening a date/time dialog
2027 // Required for updating text input state.
2031 // Required for cancelling an ongoing input method composition.
2034 // WebKit and JavaScript error messages to log to the console
2035 // or debugger UI.
2042 // Sent by the renderer process to indicate that a plugin instance has crashed.
2043 // Note: |plugin_pid| should not be trusted. The corresponding process has
2044 // probably died. Moreover, the ID may have been reused by a new process. Any
2045 // usage other than displaying it in a prompt to the user is very likely to be
2046 // wrong.
2051 // Displays a box to confirm that the user wants to navigate away from the
2052 // page. Replies true if yes, false otherwise, the reply string is ignored,
2053 // but is included so that we can use OnJavaScriptMessageBoxClosed.
2061 // Sent when a provisional load on the main frame redirects.
2067 // Sent when the renderer changes the zoom level for a particular url, so the
2068 // browser can update its records. If remember is true, then url is used to
2069 // update the zoom level for all pages in that site. Otherwise, the render
2070 // view's id is used so that only the menu is updated.
2076 // Updates the minimum/maximum allowed zoom percent for this tab from the
2077 // default values. If |remember| is true, then the zoom setting is applied to
2078 // other pages in the site and is saved, otherwise it only applies to this
2079 // tab.
2085 // Notify the browser that this render process can or can't be suddenly
2086 // terminated.
2090 // Informs the browser of updated frame names.
2107 // This message is synthesized by GpuProcessHost to pass through a swap message
2108 // to the RenderWidgetHelper. This allows GetBackingStore to block for either a
2109 // software or GPU frame.
2111 ViewHostMsg_CompositorSurfaceBuffersSwapped,
2118 // Sent by the compositor when input scroll events are dropped due to bounds
2119 // restricions on the root scroll offset.
2124 // Reply to a snapshot request containing whether snapshotting succeeded and the
2125 // SkBitmap if it succeeded.
2130 //---------------------------------------------------------------------------
2131 // Request for cryptographic operation messages:
2132 // These are messages from the renderer to the browser to perform a
2133 // cryptographic operation.
2135 // Asks the browser process to generate a keypair for grabbing a client
2136 // certificate from a CA (<keygen> tag), and returns the signed public
2137 // key and challenge string.
2144 // Message sent from the renderer to the browser to request that the browser
2145 // cache |data| associated with |url|.
2151 // Displays a JavaScript out-of-memory message in the infobar.
2154 // Register a new handler for URL requests with the given scheme.
2161 // Stores new inspector setting in the profile.
2162 // TODO(jam): this should be in the chrome module
2167 // Puts the browser into "tab fullscreen" mode for the sending renderer.
2168 // See the comment in chrome/browser/ui/browser.h for more details.
2172 // Send back a string to be recorded by UserMetrics.
2176 // Notifies the browser that the page was or was not saved as MHTML.
2191 // Notifies the browser of an event occurring in the media pipeline.
2195 // Requests to lock the mouse. Will result in a ViewMsg_LockMouse_ACK message
2196 // being sent back.
2197 // |privileged| is used by Pepper Flash. If this flag is set to true, we won't
2198 // pop up a bubble to ask for user permission or take mouse lock content into
2199 // account.
2205 // Requests to unlock the mouse. A ViewMsg_MouseLockLost message will be sent
2206 // whenever the mouse is unlocked (which may or may not be caused by
2207 // ViewHostMsg_UnlockMouse).
2210 // Notifies that the initial empty document of a view has been accessed.
2211 // After this, it is no longer safe to show a pending navigation's URL without
2212 // making a URL spoof possible.
2215 // Following message is used to communicate the values received by the
2216 // callback binding the JS to Cpp.
2217 // An instance of browser that has an automation host listening to it can
2218 // have a javascript send a native value (string, number, boolean) to the
2219 // listener in Cpp. (DomAutomationController)
2224 // Sent to the browser when the renderer detects it is blocked on a pepper
2225 // plugin message for too long. This is also sent when it becomes unhung
2226 // (according to the value of is_hung). The browser can give the user the
2227 // option of killing the plugin.
2233 // Notifies that multiple touch targets may have been pressed, and to show
2234 // the disambiguation popup.
2240 // Sent by the renderer process to check whether client 3D APIs
2241 // (Pepper 3D, WebGL) are explicitly blocked.
2248 // Sent by the renderer process to indicate that a context was lost by
2249 // client 3D content (Pepper 3D, WebGL) running on the page at the
2250 // given URL.
2256 // This message is sent when a frame is added to the DOM.
2262 // Notifies the browser that the frame with the given id was detached. The
2263 // |parent_frame_id| is -1 for the top level frame, otherwise the id of the
2264 // immediate parent of the detached frame.
2269 // Notifies the browser that document has parsed the body. This is used by the
2270 // ResourceScheduler as an indication that bandwidth contention won't block
2271 // first paint.
2274 // Notification that the urls for the favicon of a site has been determined.
2279 // Sent once a paint happens after the first non empty layout. In other words
2280 // after the page has painted something.
2284 #if defined(OS_ANDROID)
2285 // Response to ViewMsg_FindMatchRects.
2286 //
2287 // |version| will contain the current version number of the renderer's find
2288 // match list (incremented whenever they change), which should be passed in the
2289 // next call to ViewMsg_FindMatchRects.
2290 //
2291 // |rects| will either contain a list of the enclosing rects of all matches
2292 // found by the most recent Find operation, or will be empty if |version| is not
2293 // greater than the |current_version| passed to ViewMsg_FindMatchRects (hence
2294 // your locally cached rects should still be valid). The rect coords will be
2295 // custom normalized fractions of the document size. The rects will be sorted by
2296 // frame traversal order starting in the main frame, then by dom order.
2297 //
2298 // |active_rect| will contain the bounding box of the active find-in-page match
2299 // marker, in similarly normalized coords (or an empty rect if there isn't one).
2305 // Start an android intent with the given URI.
2309 // Message sent when the renderer changed the background color for the view.
2313 // This message is an ACK that the batch state change has been received by
2314 // the renderer and all IME related messages should be processed accordingly.
2318 // This message runs the MediaCodec for decoding audio for webaudio.
2324 // Sent by renderer to request a ViewMsg_BeginFrame message for upcoming
2325 // display events. If |enabled| is true, the BeginFrame message will continue
2326 // to be be delivered until the notification is disabled.
2330 // Sent by the renderer to the browser to start a vibration with the given
2331 // duration.
2335 // Sent by the renderer to the browser to cancel the currently running
2336 // vibration, if there is one.
2339 #elif defined(OS_MACOSX)
2340 // Request that the browser load a font into shared memory for us.
2347 // Informs the browser that a plugin has gained or lost focus.
2352 // Instructs the browser to start plugin IME.
2355 #elif defined(OS_WIN)
2356 // Request that the given font characters be loaded by the browser so it's
2357 // cached by the OS. Please see RenderMessageFilter::OnPreCacheFontCharacters
2358 // for details.
2362 #endif
2364 #if defined(OS_POSIX)
2365 // On POSIX, we cannot allocated shared memory from within the sandbox, so
2366 // this call exists for the renderer to ask the browser to allocate memory
2367 // on its behalf. We return a file descriptor to the POSIX shared memory.
2368 // If the |cache_in_browser| flag is |true|, then a copy of the shmem is kept
2369 // by the browser, and it is the caller's repsonsibility to send a
2370 // ViewHostMsg_FreeTransportDIB message in order to release the cached shmem.
2371 // In all cases, the caller is responsible for deleting the resulting
2372 // TransportDIB.
2378 // Since the browser keeps handles to the allocated transport DIBs, this
2379 // message is sent to tell the browser that it may release them when the
2380 // renderer is finished with them.
2383 #endif
2385 #if defined(OS_MACOSX) || defined(OS_WIN) || defined(USE_AURA)
2386 // On MACOSX, WIN and AURA IME can request composition character bounds
2387 // synchronously (see crbug.com/120597). This IPC message sends the character
2388 // bounds after every composition change to always have correct bound info.
2392 #endif
2394 // Adding a new message? Stick to the sort order above: first platform
2395 // independent ViewMsg, then ifdefs for platform specific ViewMsg, then platform
2396 // independent ViewHostMsg, then ifdefs for platform specific ViewHostMsg.