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fune/widget/EventMessageList.h
Andrew Osmond 503fb4c624 Bug 1887729 - Implement context lost/restored support for CanvasRenderingContext2D. r=webidl,gfx-reviewers,smaug,lsalzman 
Remote canvas can run in the GPU process, and if the GPU process
crashes, we need to notify the application using canvas. Historically we
just failed, and the application may have been able to continue drawing
but with the contents prior to the crash lost. Later we regressed to
prevent the canvas from being used at all.

This patch makes it so that we can restore functionality to any
application that supports the contextlost/contextrestored events. This
will allow for a theoretical complete graceful recovery for the user
with minimal disruption.

Differential Revision: https://phabricator.services.mozilla.com/D205608
2024-03-28 14:50:20 +00:00

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/**
* This header file lists up all event messages.
* Before including this header file, you should define:
* NS_EVENT_MESSAGE(aMessage)
*
* Additionally, you can specify following macro for e*First and e*Last.
* NS_EVENT_MESSAGE_FIRST_LAST(aMessage, aFirst, aLast)
* This is optional, if you need only actual event messages, you don't need
* to define this macro.
*
* Naming rules of the event messages:
* 0. Starting with "e" prefix and use camelcase.
* 1. Basically, use same name as the DOM name which is fired at dispatching
* the event.
* 2. If the event message name becomes too generic, e.g., "eInvalid", that may
* conflict with another enum's item name, append something after the "e"
* prefix, e.g., "eFormInvalid".
*/
#ifndef NS_EVENT_MESSAGE_FIRST_LAST
# define UNDEF_NS_EVENT_MESSAGE_FIRST_LAST 1
# define NS_EVENT_MESSAGE_FIRST_LAST(aMessage, aFirst, aLast)
#endif
NS_EVENT_MESSAGE(eVoidEvent)
// This is a dummy event message for all event listener implementation in
// EventListenerManager.
NS_EVENT_MESSAGE(eAllEvents)
NS_EVENT_MESSAGE(eKeyPress)
NS_EVENT_MESSAGE(eKeyUp)
NS_EVENT_MESSAGE(eKeyDown)
// This message is sent after a content process handles a key event or accesskey
// to indicate that an potential accesskey was not found. The parent process may
// then respond by, for example, opening menus and processing other shortcuts.
// It inherits its properties from a keypress event.
NS_EVENT_MESSAGE(eAccessKeyNotFound)
NS_EVENT_MESSAGE(eResize)
NS_EVENT_MESSAGE(eScroll)
NS_EVENT_MESSAGE(eMozVisualResize)
NS_EVENT_MESSAGE(eMozVisualScroll)
NS_EVENT_MESSAGE(eOffline)
NS_EVENT_MESSAGE(eOnline)
NS_EVENT_MESSAGE(eLanguageChange)
NS_EVENT_MESSAGE(eMouseMove)
NS_EVENT_MESSAGE(eMouseUp)
NS_EVENT_MESSAGE(eMouseDown)
NS_EVENT_MESSAGE(eMouseEnterIntoWidget)
NS_EVENT_MESSAGE(eMouseExitFromWidget)
NS_EVENT_MESSAGE(eMouseDoubleClick)
NS_EVENT_MESSAGE(eMouseClick)
NS_EVENT_MESSAGE(eMouseAuxClick)
// eMouseActivate is fired when the widget is activated by a click.
NS_EVENT_MESSAGE(eMouseActivate)
NS_EVENT_MESSAGE(eMouseOver)
NS_EVENT_MESSAGE(eMouseOut)
NS_EVENT_MESSAGE(eMouseHitTest)
NS_EVENT_MESSAGE(eMouseEnter)
NS_EVENT_MESSAGE(eMouseLeave)
NS_EVENT_MESSAGE(eMouseTouchDrag)
NS_EVENT_MESSAGE(eMouseLongTap)
NS_EVENT_MESSAGE(eMouseExploreByTouch)
NS_EVENT_MESSAGE_FIRST_LAST(eMouseEvent, eMouseMove, eMouseExploreByTouch)
// Pointer spec events
NS_EVENT_MESSAGE(ePointerMove)
NS_EVENT_MESSAGE(ePointerUp)
NS_EVENT_MESSAGE(ePointerDown)
NS_EVENT_MESSAGE(ePointerOver)
NS_EVENT_MESSAGE(ePointerOut)
NS_EVENT_MESSAGE(ePointerEnter)
NS_EVENT_MESSAGE(ePointerLeave)
NS_EVENT_MESSAGE(ePointerCancel)
NS_EVENT_MESSAGE(ePointerGotCapture)
NS_EVENT_MESSAGE(ePointerLostCapture)
NS_EVENT_MESSAGE_FIRST_LAST(ePointerEvent, ePointerMove, ePointerLostCapture)
NS_EVENT_MESSAGE(eContextMenu)
NS_EVENT_MESSAGE(eCueChange)
NS_EVENT_MESSAGE(eBeforeToggle)
NS_EVENT_MESSAGE(eLoad)
NS_EVENT_MESSAGE(eUnload)
NS_EVENT_MESSAGE(eHashChange)
NS_EVENT_MESSAGE(eImageAbort)
NS_EVENT_MESSAGE(eLoadError)
NS_EVENT_MESSAGE(eLoadEnd)
NS_EVENT_MESSAGE(ePopState)
NS_EVENT_MESSAGE(eRejectionHandled)
NS_EVENT_MESSAGE(eStorage)
NS_EVENT_MESSAGE(eUnhandledRejection)
NS_EVENT_MESSAGE(eBeforeUnload)
NS_EVENT_MESSAGE(eReadyStateChange)
NS_EVENT_MESSAGE(eFormSubmit)
NS_EVENT_MESSAGE(eFormReset)
NS_EVENT_MESSAGE(eFormChange)
NS_EVENT_MESSAGE(eFormSelect)
NS_EVENT_MESSAGE(eFormInvalid)
NS_EVENT_MESSAGE(eFormCheckboxStateChange)
NS_EVENT_MESSAGE(eFormRadioStateChange)
NS_EVENT_MESSAGE(eFormData)
// Need separate focus/blur notifications for non-native widgets
NS_EVENT_MESSAGE(eFocus)
NS_EVENT_MESSAGE(eBlur)
NS_EVENT_MESSAGE(eFocusIn)
NS_EVENT_MESSAGE(eFocusOut)
NS_EVENT_MESSAGE(eDragEnter)
NS_EVENT_MESSAGE(eDragOver)
NS_EVENT_MESSAGE(eDragExit)
NS_EVENT_MESSAGE(eDrag)
NS_EVENT_MESSAGE(eDragEnd)
NS_EVENT_MESSAGE(eDragStart)
NS_EVENT_MESSAGE(eDrop)
NS_EVENT_MESSAGE(eDragLeave)
NS_EVENT_MESSAGE_FIRST_LAST(eDragDropEvent, eDragEnter, eDragLeave)
// XUL specific events
NS_EVENT_MESSAGE(eXULPopupShowing)
NS_EVENT_MESSAGE(eXULPopupShown)
NS_EVENT_MESSAGE(eXULPopupHiding)
NS_EVENT_MESSAGE(eXULPopupHidden)
NS_EVENT_MESSAGE(eXULBroadcast)
NS_EVENT_MESSAGE(eXULCommandUpdate)
NS_EVENT_MESSAGE(eXULSystemStatusBarClick)
// Legacy mouse scroll (wheel) events
NS_EVENT_MESSAGE(eLegacyMouseLineOrPageScroll)
NS_EVENT_MESSAGE(eLegacyMousePixelScroll)
NS_EVENT_MESSAGE(eScrollPortUnderflow)
NS_EVENT_MESSAGE(eScrollPortOverflow)
NS_EVENT_MESSAGE(eLegacySubtreeModified)
NS_EVENT_MESSAGE(eLegacyNodeInserted)
NS_EVENT_MESSAGE(eLegacyNodeRemoved)
NS_EVENT_MESSAGE(eLegacyNodeRemovedFromDocument)
NS_EVENT_MESSAGE(eLegacyNodeInsertedIntoDocument)
NS_EVENT_MESSAGE(eLegacyAttrModified)
NS_EVENT_MESSAGE(eLegacyCharacterDataModified)
NS_EVENT_MESSAGE_FIRST_LAST(eLegacyMutationEvent, eLegacySubtreeModified,
eLegacyCharacterDataModified)
NS_EVENT_MESSAGE(eUnidentifiedEvent)
// composition events
NS_EVENT_MESSAGE(eCompositionStart)
// eCompositionEnd is the message for DOM compositionend event.
// This event should NOT be dispatched from widget if eCompositionCommit
// is available.
NS_EVENT_MESSAGE(eCompositionEnd)
// eCompositionUpdate is the message for DOM compositionupdate event.
// This event should NOT be dispatched from widget since it will be dispatched
// by mozilla::TextComposition automatically if eCompositionChange event
// will change composition string.
NS_EVENT_MESSAGE(eCompositionUpdate)
// eCompositionChange is the message for representing a change of
// composition string. This should be dispatched from widget even if
// composition string isn't changed but the ranges are changed. This causes
// a DOM "text" event which is a non-standard DOM event.
NS_EVENT_MESSAGE(eCompositionChange)
// eCompositionCommitAsIs is the message for representing a commit of
// composition string. TextComposition will commit composition with the
// last data. TextComposition will dispatch this event to the DOM tree as
// eCompositionChange without clause information. After that,
// eCompositionEnd will be dispatched automatically.
// Its mData and mRanges should be empty and nullptr.
NS_EVENT_MESSAGE(eCompositionCommitAsIs)
// eCompositionCommit is the message for representing a commit of
// composition string with its mData value. TextComposition will dispatch this
// event to the DOM tree as eCompositionChange without clause information.
// After that, eCompositionEnd will be dispatched automatically.
// Its mRanges should be nullptr.
NS_EVENT_MESSAGE(eCompositionCommit)
// eCompositionCommitRequestHandled is NOT used with any Widget*Event.
// This is used only by PBrowser.OnEventNeedingAckHandled(). If active IME
// commits composition synchronously, BrowserParent returns the commit string
// to the remote process synchronously. Then, BrowserChild dispatches
// eCompositionCommit in the remote process. Finally, this message is sent
// to BrowserParent. (If IME commits composition asynchronously, this message
// is not used.)
NS_EVENT_MESSAGE(eCompositionCommitRequestHandled)
// Following events are defined for deprecated DOM events which are using
// InternalUIEvent class.
// DOMActivate (mapped with the DOM event and used internally)
NS_EVENT_MESSAGE(eLegacyDOMActivate)
// DOMFocusIn (only mapped with the DOM event)
NS_EVENT_MESSAGE(eLegacyDOMFocusIn)
// DOMFocusOut (only mapped with the DOM event)
NS_EVENT_MESSAGE(eLegacyDOMFocusOut)
// pagetransition events
NS_EVENT_MESSAGE(ePageShow)
NS_EVENT_MESSAGE(ePageHide)
// Canvas events
NS_EVENT_MESSAGE(eContextLost)
NS_EVENT_MESSAGE(eContextRestored)
// SVG events
NS_EVENT_MESSAGE(eSVGLoad)
NS_EVENT_MESSAGE(eSVGScroll)
// XUL command events
NS_EVENT_MESSAGE(eXULCommand)
// Cut, copy, paste events
NS_EVENT_MESSAGE(eCopy)
NS_EVENT_MESSAGE(eCut)
NS_EVENT_MESSAGE(ePaste)
NS_EVENT_MESSAGE(ePasteNoFormatting)
// Query for the selected text information, it return the selection offset,
// selection length and selected text.
NS_EVENT_MESSAGE(eQuerySelectedText)
// Query for the text content of specified range, it returns actual lengh (if
// the specified range is too long) and the text of the specified range.
// Returns the entire text if requested length > actual length.
NS_EVENT_MESSAGE(eQueryTextContent)
// Query for the caret rect of nth insertion point. The offset of the result is
// relative position from the top level widget.
NS_EVENT_MESSAGE(eQueryCaretRect)
// Query for the bounding rect of a range of characters. This works on any
// valid character range given offset and length. Result is relative to top
// level widget coordinates
NS_EVENT_MESSAGE(eQueryTextRect)
// Query for the bounding rect array of a range of characters.
// Thiis similar event of eQueryTextRect.
NS_EVENT_MESSAGE(eQueryTextRectArray)
// Query for the bounding rect of the current focused frame. Result is relative
// to top level widget coordinates
NS_EVENT_MESSAGE(eQueryEditorRect)
// Query for the current state of the content. The particular members of
// mReply that are set for each query content event will be valid on success.
NS_EVENT_MESSAGE(eQueryContentState)
// Query for the selection in the form of a nsITransferable.
NS_EVENT_MESSAGE(eQuerySelectionAsTransferable)
// Query for character at a point. This returns the character offset, its
// rect and also tentative caret point if the point is clicked. The point is
// specified by Event::mRefPoint.
NS_EVENT_MESSAGE(eQueryCharacterAtPoint)
// Query if the DOM element under Event::mRefPoint belongs to our widget
// or not.
NS_EVENT_MESSAGE(eQueryDOMWidgetHittest)
// Video events
NS_EVENT_MESSAGE(eLoadStart)
NS_EVENT_MESSAGE(eProgress)
NS_EVENT_MESSAGE(eSuspend)
NS_EVENT_MESSAGE(eEmptied)
NS_EVENT_MESSAGE(eStalled)
NS_EVENT_MESSAGE(ePlay)
NS_EVENT_MESSAGE(ePause)
NS_EVENT_MESSAGE(eLoadedMetaData)
NS_EVENT_MESSAGE(eLoadedData)
NS_EVENT_MESSAGE(eWaiting)
NS_EVENT_MESSAGE(ePlaying)
NS_EVENT_MESSAGE(eCanPlay)
NS_EVENT_MESSAGE(eCanPlayThrough)
NS_EVENT_MESSAGE(eSeeking)
NS_EVENT_MESSAGE(eSeeked)
NS_EVENT_MESSAGE(eTimeUpdate)
NS_EVENT_MESSAGE(eEnded)
NS_EVENT_MESSAGE(eRateChange)
NS_EVENT_MESSAGE(eDurationChange)
NS_EVENT_MESSAGE(eVolumeChange)
// paint notification events
NS_EVENT_MESSAGE(eAfterPaint)
// Simple gesture events
NS_EVENT_MESSAGE(eSwipeGestureMayStart)
NS_EVENT_MESSAGE(eSwipeGestureStart)
NS_EVENT_MESSAGE(eSwipeGestureUpdate)
NS_EVENT_MESSAGE(eSwipeGestureEnd)
NS_EVENT_MESSAGE(eSwipeGesture)
NS_EVENT_MESSAGE(eMagnifyGestureStart)
NS_EVENT_MESSAGE(eMagnifyGestureUpdate)
NS_EVENT_MESSAGE(eMagnifyGesture)
NS_EVENT_MESSAGE(eRotateGestureStart)
NS_EVENT_MESSAGE(eRotateGestureUpdate)
NS_EVENT_MESSAGE(eRotateGesture)
NS_EVENT_MESSAGE(eTapGesture)
NS_EVENT_MESSAGE(ePressTapGesture)
NS_EVENT_MESSAGE(eEdgeUIStarted)
NS_EVENT_MESSAGE(eEdgeUICanceled)
NS_EVENT_MESSAGE(eEdgeUICompleted)
// Events to manipulate selection (WidgetSelectionEvent)
// Clear any previous selection and set the given range as the selection
NS_EVENT_MESSAGE(eSetSelection)
// Events of commands for the contents
NS_EVENT_MESSAGE(eContentCommandCut)
NS_EVENT_MESSAGE(eContentCommandCopy)
NS_EVENT_MESSAGE(eContentCommandPaste)
NS_EVENT_MESSAGE(eContentCommandDelete)
NS_EVENT_MESSAGE(eContentCommandUndo)
NS_EVENT_MESSAGE(eContentCommandRedo)
// eContentCommandInsertText tries to insert text with replacing selection
// in focused editor.
NS_EVENT_MESSAGE(eContentCommandInsertText)
NS_EVENT_MESSAGE(eContentCommandPasteTransferable)
NS_EVENT_MESSAGE(eContentCommandLookUpDictionary)
// eContentCommandScroll scrolls the nearest scrollable element to the
// currently focused content or latest DOM selection. This would normally be
// the same element scrolled by keyboard scroll commands, except that this event
// will scroll an element scrollable in either direction. I.e., if the nearest
// scrollable ancestor element can only be scrolled vertically, and horizontal
// scrolling is requested using this event, no scrolling will occur.
NS_EVENT_MESSAGE(eContentCommandScroll)
// Event to gesture notification
NS_EVENT_MESSAGE(eGestureNotify)
NS_EVENT_MESSAGE(eScrolledAreaChanged)
// CSS Transition & Animation events:
NS_EVENT_MESSAGE(eTransitionStart)
NS_EVENT_MESSAGE(eTransitionRun)
NS_EVENT_MESSAGE(eTransitionEnd)
NS_EVENT_MESSAGE(eTransitionCancel)
NS_EVENT_MESSAGE(eAnimationStart)
NS_EVENT_MESSAGE(eAnimationEnd)
NS_EVENT_MESSAGE(eAnimationIteration)
NS_EVENT_MESSAGE(eAnimationCancel)
// Webkit-prefixed versions of Transition & Animation events, for web compat:
NS_EVENT_MESSAGE(eWebkitTransitionEnd)
NS_EVENT_MESSAGE(eWebkitAnimationStart)
NS_EVENT_MESSAGE(eWebkitAnimationEnd)
NS_EVENT_MESSAGE(eWebkitAnimationIteration)
NS_EVENT_MESSAGE(eSMILBeginEvent)
NS_EVENT_MESSAGE(eSMILEndEvent)
NS_EVENT_MESSAGE(eSMILRepeatEvent)
NS_EVENT_MESSAGE(eAudioProcess)
NS_EVENT_MESSAGE(eAudioComplete)
// script notification events
NS_EVENT_MESSAGE(eBeforeScriptExecute)
NS_EVENT_MESSAGE(eAfterScriptExecute)
NS_EVENT_MESSAGE(eBeforePrint)
NS_EVENT_MESSAGE(eAfterPrint)
NS_EVENT_MESSAGE(eMessage)
NS_EVENT_MESSAGE(eMessageError)
NS_EVENT_MESSAGE(eRTCTransform)
// Menu open event
NS_EVENT_MESSAGE(eOpen)
// Device motion and orientation
NS_EVENT_MESSAGE(eDeviceOrientation)
NS_EVENT_MESSAGE(eDeviceOrientationAbsolute)
NS_EVENT_MESSAGE(eDeviceMotion)
NS_EVENT_MESSAGE(eUserProximity)
NS_EVENT_MESSAGE(eDeviceLight)
#if defined(MOZ_WIDGET_ANDROID)
NS_EVENT_MESSAGE(eOrientationChange)
#endif
// WebVR events
NS_EVENT_MESSAGE(eVRDisplayActivate)
NS_EVENT_MESSAGE(eVRDisplayDeactivate)
NS_EVENT_MESSAGE(eVRDisplayConnect)
NS_EVENT_MESSAGE(eVRDisplayDisconnect)
NS_EVENT_MESSAGE(eVRDisplayPresentChange)
// Fullscreen DOM API
NS_EVENT_MESSAGE(eFullscreenChange)
NS_EVENT_MESSAGE(eFullscreenError)
NS_EVENT_MESSAGE(eMozFullscreenChange)
NS_EVENT_MESSAGE(eMozFullscreenError)
NS_EVENT_MESSAGE(eTouchStart)
NS_EVENT_MESSAGE(eTouchMove)
NS_EVENT_MESSAGE(eTouchEnd)
NS_EVENT_MESSAGE(eTouchCancel)
NS_EVENT_MESSAGE(eTouchPointerCancel)
// Pointerlock DOM API
NS_EVENT_MESSAGE(ePointerLockChange)
NS_EVENT_MESSAGE(ePointerLockError)
NS_EVENT_MESSAGE(eMozPointerLockChange)
NS_EVENT_MESSAGE(eMozPointerLockError)
// eWheel is the event message of DOM wheel event.
NS_EVENT_MESSAGE(eWheel)
// eWheelOperationStart may be dispatched when user starts to operate mouse
// wheel. This won't be fired on some platforms which don't have corresponding
// native event.
NS_EVENT_MESSAGE(eWheelOperationStart)
// eWheelOperationEnd may be dispatched when user ends or cancels operating
// mouse wheel. This won't be fired on some platforms which don't have
// corresponding native event.
NS_EVENT_MESSAGE(eWheelOperationEnd)
// MediaRecorder events.
NS_EVENT_MESSAGE(eMediaRecorderDataAvailable)
NS_EVENT_MESSAGE(eMediaRecorderWarning)
NS_EVENT_MESSAGE(eMediaRecorderStop)
// Gamepad input events
NS_EVENT_MESSAGE(eGamepadButtonDown)
NS_EVENT_MESSAGE(eGamepadButtonUp)
NS_EVENT_MESSAGE(eGamepadAxisMove)
NS_EVENT_MESSAGE(eGamepadConnected)
NS_EVENT_MESSAGE(eGamepadDisconnected)
NS_EVENT_MESSAGE_FIRST_LAST(eGamepadEvent, eGamepadButtonDown,
eGamepadDisconnected)
// input and beforeinput events.
NS_EVENT_MESSAGE(eEditorInput)
NS_EVENT_MESSAGE(eEditorBeforeInput)
// selection events
NS_EVENT_MESSAGE(eSelectStart)
NS_EVENT_MESSAGE(eSelectionChange)
NS_EVENT_MESSAGE(eSlotChange)
// visibility change
NS_EVENT_MESSAGE(eVisibilityChange)
// security policy events
NS_EVENT_MESSAGE(eSecurityPolicyViolation)
// Details element events.
NS_EVENT_MESSAGE(eToggle)
// Dialog element events.
NS_EVENT_MESSAGE(eClose)
NS_EVENT_MESSAGE(eCancel)
// Marquee element events.
NS_EVENT_MESSAGE(eMarqueeBounce)
NS_EVENT_MESSAGE(eMarqueeStart)
NS_EVENT_MESSAGE(eMarqueeFinish)
NS_EVENT_MESSAGE(eScrollend)
#ifdef UNDEF_NS_EVENT_MESSAGE_FIRST_LAST
# undef UNDEF_NS_EVENT_MESSAGE_FIRST_LAST
# undef NS_EVENT_MESSAGE_FIRST_LAST
#endif
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