private void LocalInit()
{
this.timestamp = Panel.TimeSinceStartupMs();
this.triggerEventId = 0uL;
ulong expr_1C = EventBase.s_NextEventId;
EventBase.s_NextEventId = expr_1C + 1uL;
this.eventId = expr_1C;
this.propagation = EventBase.EventPropagation.None;
PropagationPaths expr_39 = this.m_Path;
if (expr_39 != null)
{
expr_39.Release();
}
this.m_Path = null;
this.leafTarget = null;
this.target = null;
this.skipElements.Clear();
this.isPropagationStopped = false;
this.isImmediatePropagationStopped = false;
this.isDefaultPrevented = false;
this.propagationPhase = PropagationPhase.None;
this.originalMousePosition = Vector2.zero;
this.m_CurrentTarget = null;
this.dispatch = false;
this.stopDispatch = false;
this.propagateToIMGUI = true;
this.dispatched = false;
this.processed = false;
this.processedByFocusController = false;
this.imguiEventIsValid = false;
this.pooled = false;
this.eventLogger = null;
}
void LogPropagationPathsInternal(EventBase evt, PropagationPaths paths)
{
var pathsCopy = paths == null ? new PropagationPaths() : new PropagationPaths(paths);
AddPropagationPaths(evt, pathsCopy);
UpdateModificationCount();
}
public static void LogPropagationPaths(EventBase evt, PropagationPaths paths)
{
if (evt.log)
{
evt.eventLogger.LogPropagationPathsInternal(evt, paths);
}
}
void LocalInit()
{
timestamp = (long)(Time.realtimeSinceStartup * 1000.0f);
propagation = EventPropagation.None;
m_Path?.Release();
m_Path = null;
leafTarget = null;
target = null;
skipElements.Clear();
isPropagationStopped = false;
isImmediatePropagationStopped = false;
isDefaultPrevented = false;
propagationPhase = PropagationPhase.None;
originalMousePosition = Vector2.zero;
m_CurrentTarget = null;
dispatch = false;
stopDispatch = false;
propagateToIMGUI = true;
dispatched = false;
imguiEventIsValid = false;
pooled = false;
}
private void LogPropagationPathsInternal(EventBase evt, PropagationPaths paths)
{
PropagationPaths paths2 = (paths == null) ? new PropagationPaths() : new PropagationPaths(paths);
this.AddPropagationPaths(evt, paths2);
this.UpdateModificationCount();
}
public static void LogPropagationPaths(EventBase evt, PropagationPaths paths)
{
#if UNITY_EDITOR
if (evt.log)
{
evt.eventLogger.LogPropagationPathsInternal(evt, paths);
}
#endif
}
internal static PropagationPaths Copy(PropagationPaths paths)
{
PropagationPaths propagationPaths = PropagationPaths.s_Pool.Get();
propagationPaths.trickleDownPath.AddRange(paths.trickleDownPath);
propagationPaths.targetElements.AddRange(paths.targetElements);
propagationPaths.bubbleUpPath.AddRange(paths.bubbleUpPath);
return(propagationPaths);
}
public static PropagationPaths Build(VisualElement elem, Type pathTypesRequested)
{
if (elem == null || pathTypesRequested == Type.None)
{
return(null);
}
PropagationPaths paths = s_Pool.Get();
while (elem.hierarchy.parent != null)
{
if (elem.hierarchy.parent.enabledInHierarchy)
{
if (elem.hierarchy.parent.isCompositeRoot)
{
// Callback for elem.hierarchy.parent must be called at the Target phase.
var item = new PropagationPathElement
{
m_VisualElement = elem.hierarchy.parent,
m_IsTarget = true
};
paths.targetAndBubblePath.Add(item);
}
else
{
if ((pathTypesRequested & Type.TrickleDown) == Type.TrickleDown && elem.hierarchy.parent.HasTrickleDownHandlers())
{
paths.trickleDownPath.Add(elem.hierarchy.parent);
}
if ((pathTypesRequested & Type.BubbleUp) == Type.BubbleUp && elem.hierarchy.parent.HasBubbleUpHandlers())
{
var item = new PropagationPathElement
{
m_VisualElement = elem.hierarchy.parent,
m_IsTarget = false
};
paths.targetAndBubblePath.Add(item);
}
}
}
elem = elem.hierarchy.parent;
}
return(paths);
}
public static PropagationPaths Build(VisualElement elem, PropagationPaths.Type pathTypesRequested)
{
bool flag = elem == null || pathTypesRequested == PropagationPaths.Type.None;
PropagationPaths result;
if (flag)
{
result = null;
}
else
{
PropagationPaths propagationPaths = PropagationPaths.s_Pool.Get();
propagationPaths.targetElements.Add(elem);
while (elem.hierarchy.parent != null)
{
bool enabledInHierarchy = elem.hierarchy.parent.enabledInHierarchy;
if (enabledInHierarchy)
{
bool isCompositeRoot = elem.hierarchy.parent.isCompositeRoot;
if (isCompositeRoot)
{
propagationPaths.targetElements.Add(elem.hierarchy.parent);
}
else
{
bool flag2 = (pathTypesRequested & PropagationPaths.Type.TrickleDown) == PropagationPaths.Type.TrickleDown && elem.hierarchy.parent.HasTrickleDownHandlers();
if (flag2)
{
propagationPaths.trickleDownPath.Add(elem.hierarchy.parent);
}
bool flag3 = (pathTypesRequested & PropagationPaths.Type.BubbleUp) == PropagationPaths.Type.BubbleUp && elem.hierarchy.parent.HasBubbleUpHandlers();
if (flag3)
{
propagationPaths.bubbleUpPath.Add(elem.hierarchy.parent);
}
}
}
elem = elem.hierarchy.parent;
}
result = propagationPaths;
}
return(result);
}
void AddPropagationPaths(EventBase evt, PropagationPaths paths)
{
if (m_Log)
{
var pathObject = new EventDebuggerPathTrace(panel, evt, paths);
List <EventDebuggerPathTrace> list;
if (m_EventPathObjects.ContainsKey(panel))
{
list = m_EventPathObjects[panel];
}
else
{
list = new List <EventDebuggerPathTrace>();
m_EventPathObjects.Add(panel, list);
}
list.Add(pathObject);
}
}
void AddPropagationPaths(EventBase evt, PropagationPaths paths)
{
if (suspended)
{
return;
}
if (m_Log)
{
var pathObject = new EventDebuggerPathTrace(panel, evt, paths);
if (!m_EventPathObjects.TryGetValue(panel, out var list))
{
list = new List <EventDebuggerPathTrace>();
m_EventPathObjects.Add(panel, list);
}
list.Add(pathObject);
}
}
private void AddPropagationPaths(EventBase evt, PropagationPaths paths)
{
bool log = this.m_Log;
if (log)
{
EventDebuggerPathTrace item = new EventDebuggerPathTrace(this.panel, evt, paths);
bool flag = this.m_EventPathObjects.ContainsKey(this.panel);
List <EventDebuggerPathTrace> list;
if (flag)
{
list = this.m_EventPathObjects[this.panel];
}
else
{
list = new List <EventDebuggerPathTrace>();
this.m_EventPathObjects.Add(this.panel, list);
}
list.Add(item);
}
}
void LocalInit()
{
timestamp = Panel.TimeSinceStartupMs();
triggerEventId = 0;
eventId = s_NextEventId++;
propagation = EventPropagation.None;
m_Path?.Release();
m_Path = null;
leafTarget = null;
target = null;
skipElements.Clear();
isPropagationStopped = false;
isImmediatePropagationStopped = false;
isDefaultPrevented = false;
propagationPhase = PropagationPhase.None;
originalMousePosition = Vector2.zero;
m_CurrentTarget = null;
dispatch = false;
stopDispatch = false;
propagateToIMGUI = true;
dispatched = false;
processed = false;
processedByFocusController = false;
imguiEventIsValid = false;
pooled = false;
#if UNITY_EDITOR
eventLogger = null;
#endif
}
public static PropagationPaths Build(VisualElement elem, EventBase evt)
{
PropagationPaths paths = s_Pool.Get();
var eventCategory = evt.eventCategory;
// Skip element if it has no event callbacks, default action, or default action at target
if (elem.HasEventCallbacksOrDefaultActions(eventCategory))
{
paths.targetElements.Add(elem);
}
// Go through the entire hierarchy. Don't bother checking elem.HasParentEventCallbacks because
// 1. It too goes through the entire parent hierarchy, and
// 2. It would require dirtying the parent categories when we set isCompositeRoot, so more overhead
for (var ve = elem.nextParentWithEventCallback; ve != null; ve = ve.nextParentWithEventCallback)
{
if (ve.isCompositeRoot && !evt.ignoreCompositeRoots)
{
// Callback for elem must be called at the Target phase. Skip if no callback.
if (ve.HasEventCallbacksOrDefaultActions(eventCategory))
{
paths.targetElements.Add(ve);
}
}
else if (ve.HasEventCallbacks(eventCategory))
{
if (evt.tricklesDown && ve.HasTrickleDownHandlers())
{
paths.trickleDownPath.Add(ve);
}
if (evt.bubbles && ve.HasBubbleUpHandlers())
{
paths.bubbleUpPath.Add(ve);
}
}
}
return(paths);
}
void ProcessEvent(EventBase evt, [NotNull] IPanel panel)
{
Event e = evt.imguiEvent;
// Sometimes (in tests only?) we receive Used events. Protect our verification from this case.
bool imguiEventIsInitiallyUsed = e != null && e.rawType == EventType.Used;
using (new EventDispatcherGate(this))
{
evt.PreDispatch(panel);
if (!evt.stopDispatch && !evt.isPropagationStopped)
{
ApplyDispatchingStrategies(evt, panel, imguiEventIsInitiallyUsed);
}
// Last chance to build a path. Some dispatching strategies (e.g. PointerCaptureDispatchingStrategy)
// don't call PropagateEvents but still need to call ExecuteDefaultActions on composite roots.
var path = evt.path;
if (path == null && evt.bubblesOrTricklesDown && evt.leafTarget is VisualElement leafTarget)
{
path = PropagationPaths.Build(leafTarget, evt);
evt.path = path;
EventDebugger.LogPropagationPaths(evt, path);
}
if (path != null)
{
foreach (var element in path.targetElements)
{
if (element.panel == panel)
{
evt.target = element;
EventDispatchUtilities.ExecuteDefaultAction(evt);
}
}
// Reset target to leaf target
evt.target = evt.leafTarget;
}
else
{
// If no propagation path, make sure EventDispatchUtilities.ExecuteDefaultAction has a target
if (!(evt.target is VisualElement target))
{
evt.target = target = panel.visualTree;
}
if (target.panel == panel)
{
EventDispatchUtilities.ExecuteDefaultAction(evt);
}
}
m_DebuggerEventDispatchingStrategy.PostDispatch(evt, panel);
evt.PostDispatch(panel);
m_ClickDetector.ProcessEvent(evt);
Debug.Assert(imguiEventIsInitiallyUsed || evt.isPropagationStopped || e == null || e.rawType != EventType.Used, "Event is used but not stopped.");
}
}
public EventDebuggerPathTrace(IPanel panel, EventBase evt, PropagationPaths paths) : base(panel, evt, -1L, null)
{
this.< paths > k__BackingField = paths;
}
public PropagationPaths(PropagationPaths paths)
{
trickleDownPath = new List <VisualElement>(paths.trickleDownPath);
targetAndBubblePath = new List <PropagationPathElement>(paths.targetAndBubblePath);
}
private static void HandleEventAcrossPropagationPath(EventBase evt)
{
// Build and store propagation path
var leafTarget = (VisualElement)evt.leafTarget;
var path = PropagationPaths.Build(leafTarget, evt);
evt.path = path;
EventDebugger.LogPropagationPaths(evt, path);
var panel = leafTarget.panel;
// Phase 1: TrickleDown phase
// Propagate event from root to target.parent
if (evt.tricklesDown)
{
evt.propagationPhase = PropagationPhase.TrickleDown;
for (int i = path.trickleDownPath.Count - 1; i >= 0; i--)
{
if (evt.isPropagationStopped)
{
break;
}
var element = path.trickleDownPath[i];
if (evt.Skip(element) || element.panel != panel)
{
continue;
}
evt.currentTarget = element;
evt.currentTarget.HandleEvent(evt);
}
}
// Phase 2: Target / DefaultActionAtTarget
// Propagate event from target parent up to root for the target phase
// Call HandleEvent() even if propagation is stopped, for the default actions at target.
evt.propagationPhase = PropagationPhase.AtTarget;
foreach (var element in path.targetElements)
{
if (evt.Skip(element) || element.panel != panel)
{
continue;
}
evt.target = element;
evt.currentTarget = evt.target;
evt.currentTarget.HandleEvent(evt);
}
// Call ExecuteDefaultActionAtTarget
evt.propagationPhase = PropagationPhase.DefaultActionAtTarget;
foreach (var element in path.targetElements)
{
if (evt.Skip(element) || element.panel != panel)
{
continue;
}
evt.target = element;
evt.currentTarget = evt.target;
evt.currentTarget.HandleEvent(evt);
}
// Reset target to original target
evt.target = evt.leafTarget;
// Phase 3: bubble up phase
// Propagate event from target parent up to root
if (evt.bubbles)
{
evt.propagationPhase = PropagationPhase.BubbleUp;
foreach (var element in path.bubbleUpPath)
{
if (evt.Skip(element) || element.panel != panel)
{
continue;
}
evt.currentTarget = element;
evt.currentTarget.HandleEvent(evt);
}
}
evt.propagationPhase = PropagationPhase.None;
evt.currentTarget = null;
}
public PropagationPaths(PropagationPaths paths)
{
this.trickleDownPath = new List <VisualElement>(paths.trickleDownPath);
this.targetElements = new List <VisualElement>(paths.targetElements);
this.bubbleUpPath = new List <VisualElement>(paths.bubbleUpPath);
}