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fune/widget/EventMessageList.h
David Parks 94e352a07b Bug 1910452: Part 1 - Intercept drop events for content analysis a=dmeehan 
Sends OOP drop events to content analysis for approval before sending them to
the DOM.  It intercepts drop events at the browser level and sends them to CA
before calling stopPropagation and preventDefault on them.  (CA also presents a
modal dialog over the tab.) The drag session then ends as usual in the parent
process but remains open on the related browser in the process where it would be
sent to the DOM while the drop is being analyzed.  While CA runs, the browser
dispatches an eQueryDropTargetHittest event to locate the drop target while the
event screen coordinates are still valid.  When CA is complete, a drop or
dragexit event is sent to the drop target (drop if it was approved by CA). Calls
to EndDragSession are delayed during this.

Differential Revision: https://phabricator.services.mozilla.com/D227587
2024-11-05 15:35:35 +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)
// Query for the DOM element under Event::mRefPoint that is the target of a
// delayed drop event.
NS_EVENT_MESSAGE(eQueryDropTargetHittest)
// 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)
// textInput event which is a default action of beforeinput
NS_EVENT_MESSAGE(eLegacyTextInput)
// 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)
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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