static bool FindCommonGround(CssBoxHitChain startChain, CssBoxHitChain endChain, out int breakAtLevel)
{
//find common ground of startChain and endChain
int startChainCount = startChain.Count;
int endChainCount = endChain.Count;
int lim = Math.Min(startChainCount, endChainCount);
//from root to leave
breakAtLevel = 0;
for (int i = 0; i < lim; ++i)
{
HitInfo startHitInfo = startChain.GetHitInfo(i);
HitInfo endHitInfo = endChain.GetHitInfo(i);
if (startHitInfo.hitObject != endHitInfo.hitObject)
{
//found diff here
breakAtLevel = i;
break;
}
}
//----------------------------
//check
//return isDeepDown = endChainCount > startChainCount && (breakAtLevel == startChainCount - 1);
return(endChainCount > startChainCount && (breakAtLevel == startChainCount - 1));
}
static bool IsOnTheSameLine(CssBoxHitChain startChain, CssBoxHitChain endChain)
{
CssLineBox startLineBox = GetLine(startChain.GetLastHit());
CssLineBox endLineBox = GetLine(endChain.GetLastHit());
return(startLineBox != null && startLineBox == endLineBox);
}
void SetupStartHitPoint(CssBoxHitChain startChain, ITextService textService)
{
//find global location of start point
HitInfo startHit = startChain.GetLastHit();
//-----------------------------
_startHitRun = null;
_startHitRunCharIndex = 0;
switch (startHit.hitObjectKind)
{
case HitObjectKind.Run:
{
CssRun run = (CssRun)startHit.hitObject;
//-------------------------------------------------------
int sel_index;
int sel_offset;
run.FindSelectionPoint(textService,
startHit.localX,
out sel_index,
out sel_offset);
_startHitRunCharIndex = sel_index;
//modify hitpoint
_startHitHostLine = (CssLineBox)startChain.GetHitInfo(startChain.Count - 2).hitObject;
_startLineBeginSelectionAtPixel = (int)(run.Left + sel_offset);
_startHitRun = run;
}
break;
case HitObjectKind.LineBox:
{
_startHitHostLine = (CssLineBox)startHit.hitObject;
_startLineBeginSelectionAtPixel = startHit.localX;
//make global
}
break;
case HitObjectKind.CssBox:
{
CssBox box = (CssBox)startHit.hitObject;
//find first nearest line at point
CssLineBox startHitLine = FindNearestLine(box, startChain.RootGlobalY, 5);
_startLineBeginSelectionAtPixel = 0;
if (startHitLine != null)
{
_startHitHostLine = startHitLine;
}
else
{
//if not found?
_startHitHostLine = null;
}
}
break;
default:
{
throw new NotSupportedException();
}
}
}
public void MouseDown(UIMouseEventArgs e, CssBox startAt)
{
if (!_isBinded)
{
return;
}
if (startAt == null)
{
return;
}
//----------------------------------------------------
ClearPreviousSelection();
if (_latestMouseDownChain != null)
{
ReleaseHitChain(_latestMouseDownChain);
_latestMouseDownChain = null;
}
this.lastDomLayoutVersion = this._htmlContainer.LayoutVersion;
//----------------------------------------------------
int x = e.X;
int y = e.Y;
this._mouseDownStartAt = startAt;
this._mousedownX = x;
this._mousedownY = y;
CssBoxHitChain hitChain = GetFreeHitChain();
hitChain.SetRootGlobalPosition(x, y);
//1. hittest
BoxHitUtils.HitTest(startAt, x, y, hitChain);
//2. propagate events
SetEventOrigin(e, hitChain);
ForEachOnlyEventPortalBubbleUp(e, hitChain, (portal) =>
{
portal.PortalMouseDown(e);
return(true);
});
if (!e.CancelBubbling)
{
var prevMouseDownElement = this.currentMouseDown;
e.CurrentContextElement = this.currentMouseDown = null; //clear
ForEachEventListenerBubbleUp(e, hitChain, () =>
{
//TODO: check accept keyboard
this.currentMouseDown = e.CurrentContextElement;
e.CurrentContextElement.ListenMouseDown(e);
if (prevMouseDownElement != null &&
prevMouseDownElement != currentMouseDown)
{
prevMouseDownElement.ListenLostMouseFocus(e);
}
return(e.CancelBubbling);
});
}
//----------------------------------
//save mousedown hitchain
this._latestMouseDownChain = hitChain;
}
static void SetEventOrigin(UIEventArgs e, CssBoxHitChain hitChain)
{
int count = hitChain.Count;
if (count > 0)
{
e.SetExactHitObject(hitChain.GetHitInfo(count - 1).hitObject);
}
}
static void SetEventOrigin(UIEventArgs e, CssBoxHitChain hitChain)
{
int count = hitChain.Count;
if (count > 0)
{
var hitInfo = hitChain.GetHitInfo(count - 1);
e.ExactHitObject = hitInfo.hitObject;
}
}
static void SetEventOrigin(UIEventArgs e, CssBoxHitChain hitChain)
{
int count = hitChain.Count;
if (count > 0)
{
var hitInfo = hitChain.GetHitInfo(count - 1);
e.ExactHitObject = hitInfo.hitObject;
}
}
public void MouseDown(UIMouseEventArgs e, CssBox startAt)
{
if (!_isBinded) return;
if (startAt == null) return;
//----------------------------------------------------
ClearPreviousSelection();
if (_latestMouseDownChain != null)
{
ReleaseHitChain(_latestMouseDownChain);
_latestMouseDownChain = null;
}
this.lastDomLayoutVersion = this._htmlContainer.LayoutVersion;
//----------------------------------------------------
int x = e.X;
int y = e.Y;
this._mouseDownStartAt = startAt;
this._mousedownX = x;
this._mousedownY = y;
CssBoxHitChain hitChain = GetFreeHitChain();
hitChain.SetRootGlobalPosition(x, y);
//1. hittest
BoxHitUtils.HitTest(startAt, x, y, hitChain);
//2. propagate events
SetEventOrigin(e, hitChain);
ForEachOnlyEventPortalBubbleUp(e, hitChain, (portal) =>
{
portal.PortalMouseDown(e);
return true;
});
if (!e.CancelBubbling)
{
var prevMouseDownElement = this.currentMouseDown;
e.CurrentContextElement = this.currentMouseDown = null; //clear
ForEachEventListenerBubbleUp(e, hitChain, () =>
{
//TODO: check accept keyboard
this.currentMouseDown = e.CurrentContextElement;
e.CurrentContextElement.ListenMouseDown(e);
if (prevMouseDownElement != null &&
prevMouseDownElement != currentMouseDown)
{
prevMouseDownElement.ListenLostMouseFocus(e);
}
return e.CancelBubbling;
});
}
//----------------------------------
//save mousedown hitchain
this._latestMouseDownChain = hitChain;
}
static void ForEachEventListenerBubbleUp(UIEventArgs e, CssBoxHitChain hitChain, EventListenerAction listenerAction)
{
for (int i = hitChain.Count - 1; i >= 0; --i)
{
//propagate up
var hitInfo = hitChain.GetHitInfo(i);
IEventListener controller = null;
switch (hitInfo.hitObjectKind)
{
default:
{
continue;
}
case HitObjectKind.Run:
{
CssRun run = (CssRun)hitInfo.hitObject;
controller = CssBox.UnsafeGetController(run.OwnerBox) as IEventListener;
}
break;
case HitObjectKind.CssBox:
{
CssBox box = (CssBox)hitInfo.hitObject;
controller = CssBox.UnsafeGetController(box) as IEventListener;
}
break;
}
//---------------------
if (controller != null)
{
//found controller
if (e.SourceHitElement == null)
{
e.SourceHitElement = controller;
}
e.CurrentContextElement = controller;
e.SetLocation(hitInfo.localX, hitInfo.localY);
if (listenerAction())
{
return;
}
}
}
}
static void ForEachOnlyEventPortalBubbleUp(UIEventArgs e, CssBoxHitChain hitPointChain, EventPortalAction eventPortalAction)
{
//only listener that need tunnel down
for (int i = hitPointChain.Count - 1; i >= 0; --i)
{
//propagate up
var hitInfo = hitPointChain.GetHitInfo(i);
IEventPortal controller = null;
switch (hitInfo.hitObjectKind)
{
default:
{
continue;
}
case HitObjectKind.Run:
{
CssRun run = (CssRun)hitInfo.hitObject;
controller = CssBox.UnsafeGetController(run.OwnerBox) as IEventPortal;
}
break;
case HitObjectKind.CssBox:
{
CssBox box = (CssBox)hitInfo.hitObject;
controller = CssBox.UnsafeGetController(box) as IEventPortal;
}
break;
}
//---------------------
if (controller != null)
{
e.SetLocation(hitInfo.localX, hitInfo.localY);
if (eventPortalAction(controller))
{
return;
}
}
}
}
public SelectionRange(
CssBoxHitChain startChain,
CssBoxHitChain endChain,
IFonts ifonts)
{
if (IsOnTheSameLine(startChain, endChain))
{
//on the same line
if (endChain.RootGlobalX < startChain.RootGlobalX)
{
//swap
var tmp = endChain;
endChain = startChain;
startChain = tmp;
}
}
else
{
//across line
if (endChain.RootGlobalY < startChain.RootGlobalY)
{ //swap
var tmp = endChain;
endChain = startChain;
startChain = tmp;
}
}
//1.
this.SetupStartHitPoint(startChain, ifonts);
//2.
if (this.startHitHostLine == null)
{
this.isValid = false;
return;
}
this.SetupEndHitPoint(startChain, endChain, ifonts);
this.snapSelectionArea = this.GetSelectionRectArea();
}
public SelectionRange(
CssBoxHitChain startChain,
CssBoxHitChain endChain,
ITextService ifonts)
{
if (IsOnTheSameLine(startChain, endChain))
{
//on the same line
if (endChain.RootGlobalX < startChain.RootGlobalX)
{
//swap
var tmp = endChain;
endChain = startChain;
startChain = tmp;
}
}
else
{
//across line
if (endChain.RootGlobalY < startChain.RootGlobalY)
{ //swap
var tmp = endChain;
endChain = startChain;
startChain = tmp;
}
}
//1.
this.SetupStartHitPoint(startChain, ifonts);
//2.
if (this.startHitHostLine == null)
{
this.isValid = false;
return;
}
this.SetupEndHitPoint(startChain, endChain, ifonts);
this.snapSelectionArea = this.GetSelectionRectArea();
}
internal SelectionRange(
CssBoxHitChain startChain,
CssBoxHitChain endChain,
IHtmlTextService textservice)
{
if (IsOnTheSameLine(startChain, endChain))
{
//on the same line
if (endChain.RootGlobalX < startChain.RootGlobalX)
{
//swap
CssBoxHitChain tmp = endChain;
endChain = startChain;
startChain = tmp;
}
}
else
{
//across line
if (endChain.RootGlobalY < startChain.RootGlobalY)
{ //swap
CssBoxHitChain tmp = endChain;
endChain = startChain;
startChain = tmp;
}
}
//1.
this.SetupStartHitPoint(startChain, textservice);
//2.
if (_startHitHostLine == null)
{
IsValid = false;
return;
}
this.SetupEndHitPoint(startChain, endChain, textservice);
SnapSelectionArea = this.GetSelectionRectArea();
}
public void MouseUp(UIMouseEventArgs e, CssBox startAt)
{
if (!_isBinded)
{
return;
}
if (startAt == null)
{
return;
}
//----------------------------------------------------
DateTime snapMouseUpTime = DateTime.Now;
TimeSpan timediff = snapMouseUpTime - lastimeMouseUp;
bool isAlsoDoubleClick = timediff.Milliseconds < DOUBLE_CLICK_SENSE;
this.lastimeMouseUp = snapMouseUpTime;
//-----------------------------------------
CssBoxHitChain hitChain = GetFreeHitChain();
hitChain.SetRootGlobalPosition(e.X, e.Y);
//1. prob hit chain only
BoxHitUtils.HitTest(startAt, e.X, e.Y, hitChain);
SetEventOrigin(e, hitChain);
//2. invoke css event and script event
ForEachOnlyEventPortalBubbleUp(e, hitChain, (portal) =>
{
portal.PortalMouseUp(e);
return(true);
});
if (!e.CancelBubbling)
{
ForEachEventListenerBubbleUp(e, hitChain, () =>
{
e.CurrentContextElement.ListenMouseUp(e);
return(e.CancelBubbling);
});
}
if (!e.IsCanceled)
{
//--------------------
//click or double click
//--------------------
if (isAlsoDoubleClick)
{
ForEachEventListenerBubbleUp(e, hitChain, () =>
{
e.CurrentContextElement.ListenMouseDoubleClick(e);
return(e.CancelBubbling);
});
}
else
{
ForEachEventListenerBubbleUp(e, hitChain, () =>
{
e.CurrentContextElement.ListenMouseClick(e);
return(e.CancelBubbling);
});
}
}
ReleaseHitChain(hitChain);
if (this._latestMouseDownChain != null)
{
this._latestMouseDownChain.Clear();
//Console.WriteLine(dbugNN++);
this._latestMouseDownChain = null;
}
}
public void MouseDown(UIMouseDownEventArgs e, CssBox startAt)
{
if (!_isBinded)
{
return;
}
if (startAt == null)
{
return;
}
//----------------------------------------------------
if (!e.Shift)
{
ClearPreviousSelection();
}
if (_latestMouseDownChain != null)
{
ReleaseHitChain(_latestMouseDownChain);
_latestMouseDownChain = null;
}
_lastDomLayoutVersion = _htmlVisualRoot.LayoutVersion;
//----------------------------------------------------
int x = e.X;
int y = e.Y;
_mouseDownStartAt = startAt;
_mousedownX = x;
_mousedownY = y;
CssBoxHitChain hitChain = GetFreeHitChain();
#if DEBUG
hitChain.debugEventPhase = CssBoxHitChain.dbugEventPhase.MouseDown;
#endif
hitChain.SetRootGlobalPosition(x, y);
//1. hittest
BoxHitUtils.HitTest(startAt, x, y, hitChain);
//2. propagate events
SetEventOrigin(e, hitChain);
ForEachOnlyEventPortalBubbleUp(e, hitChain, portal =>
{
portal.PortalMouseDown(e);
return(true);
});
if (!e.CancelBubbling)
{
IUIEventListener prevMouseDownElement = _currentMouseDown;
_currentMouseDown = null; //clear
e.SetCurrentContextElement(null);
ForEachEventListenerBubbleUp(e, hitChain, () =>
{
//TODO: check accept keyboard
_currentMouseDown = e.CurrentContextElement;
e.CurrentContextElement.ListenMouseDown(e);
if (prevMouseDownElement != null &&
prevMouseDownElement != _currentMouseDown)
{
prevMouseDownElement.ListenLostMouseFocus(_mouseLostFocus);
}
return(e.CancelBubbling);
});
}
//----------------------------------
//save mousedown hitchain
_latestMouseDownChain = hitChain;
}
public void MouseMove(UIMouseEventArgs e, CssBox startAt)
{
if (!_isBinded)
{
return;
}
if (startAt == null)
{
return;
}
//-----------------------------------------
int x = e.X;
int y = e.Y;
if (e.IsDragging && _latestMouseDownChain != null)
{
//dragging *** , if changed
if (this._mousedownX != x || this._mousedownY != y)
{
//handle mouse drag
CssBoxHitChain hitChain = GetFreeHitChain();
hitChain.SetRootGlobalPosition(x, y);
BoxHitUtils.HitTest(startAt, x, y, hitChain);
SetEventOrigin(e, hitChain);
//---------------------------------------------------------
//propagate mouse drag
ForEachOnlyEventPortalBubbleUp(e, hitChain, (portal) =>
{
portal.PortalMouseMove(e);
return(true);
});
//---------------------------------------------------------
if (!e.CancelBubbling)
{
ClearPreviousSelection();
if (_latestMouseDownChain.Count > 0 && hitChain.Count > 0)
{
if (this._htmlContainer.LayoutVersion != this.lastDomLayoutVersion)
{
//the dom has been changed so...
//need to evaluate hitchain at mousedown position again
int lastRootGlobalX = _latestMouseDownChain.RootGlobalX;
int lastRootGlobalY = _latestMouseDownChain.RootGlobalY;
_latestMouseDownChain.Clear();
_latestMouseDownChain.SetRootGlobalPosition(lastRootGlobalX, lastRootGlobalY);
BoxHitUtils.HitTest(_mouseDownStartAt, lastRootGlobalX, lastRootGlobalY, _latestMouseDownChain);
}
//create selection range
var newSelectionRange = new SelectionRange(
_latestMouseDownChain,
hitChain,
this.ifonts);
if (newSelectionRange.IsValid)
{
this._htmlContainer.SetSelection(newSelectionRange);
}
else
{
this._htmlContainer.SetSelection(null);
}
}
else
{
this._htmlContainer.SetSelection(null);
}
ForEachEventListenerBubbleUp(e, hitChain, () =>
{
e.CurrentContextElement.ListenMouseMove(e);
return(true);
});
}
//---------------------------------------------------------
ReleaseHitChain(hitChain);
}
}
else
{
//mouse move
//---------------------------------------------------------
CssBoxHitChain hitChain = GetFreeHitChain();
hitChain.SetRootGlobalPosition(x, y);
BoxHitUtils.HitTest(startAt, x, y, hitChain);
SetEventOrigin(e, hitChain);
//---------------------------------------------------------
ForEachOnlyEventPortalBubbleUp(e, hitChain, (portal) =>
{
portal.PortalMouseMove(e);
return(true);
});
//---------------------------------------------------------
if (!e.CancelBubbling)
{
ForEachEventListenerBubbleUp(e, hitChain, () =>
{
e.CurrentContextElement.ListenMouseMove(e);
return(true);
});
}
ReleaseHitChain(hitChain);
}
}
public virtual bool CustomContentHitTest(float x, float y, CssBoxHitChain hitChain)
{
throw new NotImplementedException();
}
public override bool CustomContentHitTest(float x, float y, CssBoxHitChain hitChain)
{
return true;//stop here
}
void ReleaseHitChain(CssBoxHitChain hitChain)
{
hitChain.Clear();
this.hitChainPools.Push(hitChain);
}
public void MouseUp(UIMouseEventArgs e, CssBox startAt)
{
if (!_isBinded) return;
if (startAt == null) return;
//----------------------------------------------------
DateTime snapMouseUpTime = DateTime.Now;
TimeSpan timediff = snapMouseUpTime - lastimeMouseUp;
bool isAlsoDoubleClick = timediff.Milliseconds < DOUBLE_CLICK_SENSE;
this.lastimeMouseUp = snapMouseUpTime;
//-----------------------------------------
CssBoxHitChain hitChain = GetFreeHitChain();
hitChain.SetRootGlobalPosition(e.X, e.Y);
//1. prob hit chain only
BoxHitUtils.HitTest(startAt, e.X, e.Y, hitChain);
SetEventOrigin(e, hitChain);
//2. invoke css event and script event
ForEachOnlyEventPortalBubbleUp(e, hitChain, (portal) =>
{
portal.PortalMouseUp(e);
return true;
});
if (!e.CancelBubbling)
{
ForEachEventListenerBubbleUp(e, hitChain, () =>
{
e.CurrentContextElement.ListenMouseUp(e);
return e.CancelBubbling;
});
}
if (!e.IsCanceled)
{
//--------------------
//click or double click
//--------------------
if (isAlsoDoubleClick)
{
ForEachEventListenerBubbleUp(e, hitChain, () =>
{
e.CurrentContextElement.ListenMouseDoubleClick(e);
return e.CancelBubbling;
});
}
else
{
ForEachEventListenerBubbleUp(e, hitChain, () =>
{
e.CurrentContextElement.ListenMouseClick(e);
return e.CancelBubbling;
});
}
}
ReleaseHitChain(hitChain);
if (this._latestMouseDownChain != null)
{
this._latestMouseDownChain.Clear();
//Console.WriteLine(dbugNN++);
this._latestMouseDownChain = null;
}
}
static bool FindCommonGround(CssBoxHitChain startChain, CssBoxHitChain endChain, out int breakAtLevel)
{
//find common ground of startChain and endChain
int startChainCount = startChain.Count;
int endChainCount = endChain.Count;
int lim = Math.Min(startChainCount, endChainCount);
//from root to leave
breakAtLevel = 0;
for (int i = 0; i < lim; ++i)
{
var startHitInfo = startChain.GetHitInfo(i);
var endHitInfo = endChain.GetHitInfo(i);
if (startHitInfo.hitObject != endHitInfo.hitObject)
{
//found diff here
breakAtLevel = i;
break;
}
}
//----------------------------
//check
//return isDeepDown = endChainCount > startChainCount && (breakAtLevel == startChainCount - 1);
return endChainCount > startChainCount && (breakAtLevel == startChainCount - 1);
}
void SetupEndHitPoint(CssBoxHitChain startChain, CssBoxHitChain endChain, ITextService textService)
{
//find global location of end point
HitInfo endHit = endChain.GetLastHit();
int xposOnEndLine = 0;
CssLineBox endline = null;
//find endline first
_endHitRunCharIndex = 0;
_endHitRun = null;
switch (endHit.hitObjectKind)
{
default:
{
throw new NotSupportedException();
}
case HitObjectKind.Run:
{
CssRun endRun = (CssRun)endHit.hitObject;
#if DEBUG
//if (endRun.Text != null && endRun.Text.Contains("Jose"))
//{
//}
if (endHit.localX > 23)
{
}
System.Diagnostics.Debug.WriteLine(endHit.localX);
#endif
endRun.FindSelectionPoint(textService,
endHit.localX,
out int run_sel_index,
out int run_sel_offset);
endline = endRun.HostLine;
xposOnEndLine = (int)(endRun.Left + run_sel_offset);
_endHitRunCharIndex = run_sel_index;
#if DEBUG
System.Diagnostics.Debug.WriteLine(_endHitRunCharIndex);
#endif
_endHitRun = endRun;
}
break;
case HitObjectKind.LineBox:
{
endline = (CssLineBox)endHit.hitObject;
xposOnEndLine = endHit.localX;
}
break;
case HitObjectKind.CssBox:
{
CssBox hitBox = (CssBox)endHit.hitObject;
endline = FindNearestLine(hitBox, endChain.RootGlobalY, 5);
xposOnEndLine = endHit.localX;
}
break;
}
#if DEBUG
if (xposOnEndLine == 0)
{
}
#endif
//----------------------------------
_selectedLines = new List <CssLineBox>();
if (_startHitHostLine == endline)
{
_selectedLines.Add(endline);
_startHitHostLine.Select(_startLineBeginSelectionAtPixel, xposOnEndLine,
_startHitRun, _startHitRunCharIndex,
_endHitRun, _endHitRunCharIndex);
return; //early exit here ***
}
//----------------------------------
//select on different line
LineWalkVisitor lineWalkVisitor = null;
if (FindCommonGround(startChain, endChain, out int breakAtLevel) && breakAtLevel > 0)
{
CssBlockRun hitBlockRun = endChain.GetHitInfo(breakAtLevel).hitObject as CssBlockRun;
//multiple select
//1. first part
if (hitBlockRun != null)
{
_startHitHostLine.Select(_startLineBeginSelectionAtPixel, (int)hitBlockRun.Left,
_startHitRun, _startHitRunCharIndex,
_endHitRun, _endHitRunCharIndex);
_selectedLines.Add(_startHitHostLine);
lineWalkVisitor = new LineWalkVisitor(hitBlockRun);
}
else
{
_startHitHostLine.SelectPartialToEnd(_startLineBeginSelectionAtPixel, _startHitRun, _startHitRunCharIndex);
_selectedLines.Add(_startHitHostLine);
lineWalkVisitor = new LineWalkVisitor(_startHitHostLine);
}
}
else
{
_startHitHostLine.SelectPartialToEnd(_startLineBeginSelectionAtPixel, _startHitRun, _startHitRunCharIndex);
_selectedLines.Add(_startHitHostLine);
lineWalkVisitor = new LineWalkVisitor(_startHitHostLine);
}
lineWalkVisitor.SetWalkTargetPosition(endChain.RootGlobalX, endChain.RootGlobalY);
#if DEBUG
int dbugExpectedId = 1;
#endif
lineWalkVisitor.Walk(endline, (lineCoverage, linebox, partialLineRun) =>
{
#if DEBUG
//System.Diagnostics.Debug.WriteLine("sel:" + linebox.dbugId);
if (dbugExpectedId != linebox.dbugId)
{
}
dbugExpectedId++;
#endif
switch (lineCoverage)
{
case LineCoverage.EndLine:
{
//found end line
linebox.SelectPartialFromStart(xposOnEndLine, _endHitRun, _endHitRunCharIndex);
_selectedLines.Add(linebox);
}
break;
case LineCoverage.PartialLine:
{
linebox.SelectPartialFromStart((int)partialLineRun.Right, _endHitRun, _endHitRunCharIndex);
_selectedLines.Add(linebox);
}
break;
case LineCoverage.FullLine:
{
//check if hitpoint is in the line area
linebox.SelectFull();
_selectedLines.Add(linebox);
}
break;
}
});
}
void SetupEndHitPoint(CssBoxHitChain startChain, CssBoxHitChain endChain, ITextService ifonts)
{
//find global location of end point
HitInfo endHit = endChain.GetLastHit();
int xposOnEndLine = 0;
CssLineBox endline = null;
int run_sel_offset = 0;
//find endline first
this.endHitRunCharIndex = 0;
this.endHitRun = null;
switch (endHit.hitObjectKind)
{
default:
{
throw new NotSupportedException();
}
case HitObjectKind.Run:
{
CssRun endRun = (CssRun)endHit.hitObject;
//if (endRun.Text != null && endRun.Text.Contains("Jose"))
//{
//}
int run_sel_index;
endRun.FindSelectionPoint(ifonts,
endHit.localX,
out run_sel_index,
out run_sel_offset);
endline = endRun.HostLine;
xposOnEndLine = (int)(endRun.Left + run_sel_offset);
this.endHitRunCharIndex = run_sel_index;
this.endHitRun = endRun;
}
break;
case HitObjectKind.LineBox:
{
endline = (CssLineBox)endHit.hitObject;
xposOnEndLine = endHit.localX;
}
break;
case HitObjectKind.CssBox:
{
CssBox hitBox = (CssBox)endHit.hitObject;
endline = FindNearestLine(hitBox, endChain.RootGlobalY, 5);
xposOnEndLine = endHit.localX;
}
break;
}
#if DEBUG
if (xposOnEndLine == 0)
{
}
#endif
//----------------------------------
this.selectedLines = new List <CssLineBox>();
if (startHitHostLine == endline)
{
this.selectedLines.Add(endline);
startHitHostLine.Select(startLineBeginSelectionAtPixel, xposOnEndLine,
this.startHitRun, this.startHitRunCharIndex,
this.endHitRun, this.endHitRunCharIndex);
return; //early exit here ***
}
//----------------------------------
//select on different line
LineWalkVisitor lineWalkVisitor = null;
int breakAtLevel;
if (FindCommonGround(startChain, endChain, out breakAtLevel) && breakAtLevel > 0)
{
var hit1 = endChain.GetHitInfo(breakAtLevel).hitObject;
var hitBlockRun = hit1 as CssBlockRun;
//multiple select
//1. first part
if (hitBlockRun != null)
{
startHitHostLine.Select(startLineBeginSelectionAtPixel, (int)hitBlockRun.Left,
this.startHitRun, this.startHitRunCharIndex,
this.endHitRun, this.endHitRunCharIndex);
selectedLines.Add(this.startHitHostLine);
lineWalkVisitor = new LineWalkVisitor(hitBlockRun);
}
else
{
startHitHostLine.SelectPartialToEnd(startLineBeginSelectionAtPixel, this.startHitRun, this.startHitRunCharIndex);
selectedLines.Add(this.startHitHostLine);
lineWalkVisitor = new LineWalkVisitor(startHitHostLine);
}
}
else
{
startHitHostLine.SelectPartialToEnd(startLineBeginSelectionAtPixel, this.startHitRun, this.startHitRunCharIndex);
selectedLines.Add(this.startHitHostLine);
lineWalkVisitor = new LineWalkVisitor(startHitHostLine);
}
lineWalkVisitor.SetWalkTargetPosition(endChain.RootGlobalX, endChain.RootGlobalY);
lineWalkVisitor.Walk(endline, (lineCoverage, linebox, partialLineRun) =>
{
switch (lineCoverage)
{
case LineCoverage.EndLine:
{
//found end line
linebox.SelectPartialFromStart(xposOnEndLine, this.endHitRun, this.endHitRunCharIndex);
selectedLines.Add(linebox);
}
break;
case LineCoverage.PartialLine:
{
linebox.SelectPartialFromStart((int)partialLineRun.Right, this.endHitRun, this.endHitRunCharIndex);
selectedLines.Add(linebox);
}
break;
case LineCoverage.FullLine:
{
//check if hitpoint is in the line area
linebox.SelectFull();
selectedLines.Add(linebox);
}
break;
}
});
}
public static bool HitTest(CssBox box, float x, float y, CssBoxHitChain hitChain)
{
//--------------------------------------
float boxHitLocalX = x - box.LocalX;
float boxHitLocalY = y - box.LocalY;
bool isPointInArea = box.IsPointInArea(x, y);
//----------------------------------------------------------------------
if (isPointInArea)
{
hitChain.AddHit(box, (int)boxHitLocalX, (int)boxHitLocalY);
}
//check absolute layer first ***
if (box.HasAbsoluteLayer)
{
hitChain.PushContextBox(box);
foreach (var absBox in box.GetAbsoluteChildBoxBackwardIter())
{
if (HitTest(absBox, boxHitLocalX, boxHitLocalY, hitChain))
{
//found hit
hitChain.PopContextBox(box);
return(true);
}
}
hitChain.PopContextBox(box);
}
//----------------------------------------------------------------------
if (!isPointInArea)
{
switch (box.CssDisplay)
{
case Css.CssDisplay.TableRow:
{
foreach (var childBox in box.GetChildBoxIter())
{
if (HitTest(childBox, x, y, hitChain))
{
return(true);
}
}
} break;
}
//exit
return(false);
}
//----------------------------------------------------------------------
//at here point is in the area***
hitChain.PushContextBox(box);
if (box.IsCustomCssBox)
{
//custom css box
//return true= stop here
if (box.CustomContentHitTest(x, y, hitChain))
{
hitChain.PopContextBox(box);
return(true);
}
}
if (box.LineBoxCount > 0)
{
bool foundSomeLine = false;
foreach (var lineBox in box.GetLineBoxIter())
{
//line box not overlap
if (lineBox.HitTest(boxHitLocalX, boxHitLocalY))
{
foundSomeLine = true;
float lineBoxLocalY = boxHitLocalY - lineBox.CachedLineTop;
//2.
hitChain.AddHit(lineBox, (int)boxHitLocalX, (int)lineBoxLocalY);
var foundRun = BoxHitUtils.GetCssRunOnLocation(lineBox, (int)boxHitLocalX, (int)lineBoxLocalY);
if (foundRun != null)
{
//3.
hitChain.AddHit(foundRun, (int)(boxHitLocalX - foundRun.Left), (int)lineBoxLocalY);
//4. go deeper for block run
if (foundRun.Kind == CssRunKind.BlockRun)
{
var blockRun = (CssBlockRun)foundRun;
CssLineBox hostLine = blockRun.HostLine;
//adjust with hostline
HitTest(((CssBlockRun)foundRun).ContentBox, (int)(boxHitLocalX - foundRun.Left), boxHitLocalY - hostLine.CachedLineTop, hitChain);
}
}
//found line box
hitChain.PopContextBox(box);
return(true);
}
else if (foundSomeLine)
{
return(false);
}
}
}
else
{
//iterate in child
foreach (var childBox in box.GetChildBoxIter())
{
if (HitTest(childBox, boxHitLocalX, boxHitLocalY, hitChain))
{
//recursive
hitChain.PopContextBox(box);
return(true);
}
}
}
hitChain.PopContextBox(box);
return(true);
}
public static bool HitTest(CssBox box, float x, float y, CssBoxHitChain hitChain)
{
#if DEBUG
//if (box.ViewportY != 0 && hitChain.debugEventPhase == CssBoxHitChain.dbugEventPhase.MouseDown)
//{
//}
#endif
//--------------------------------------
bool isPointInArea = box.IsPointInArea(x, y);
float boxHitLocalX = x - box.LocalX; //**
float boxHitLocalY = y - box.LocalY; //**
//----------------------------------------------------------------------
if (isPointInArea)
{
hitChain.AddHit(box, (int)boxHitLocalX, (int)boxHitLocalY);
}
//----------------------------------------------------------------------
//enter children space -> offset with its viewport
boxHitLocalX += box.ViewportX;
boxHitLocalY += box.ViewportY;
//check absolute layer first ***
if (box.HasAbsoluteLayer)
{
hitChain.PushContextBox(box);
foreach (CssBox absBox in box.GetAbsoluteChildBoxBackwardIter())
{
if (HitTest(absBox, boxHitLocalX, boxHitLocalY, hitChain))
{
//found hit
hitChain.PopContextBox(box);
return(true);
}
}
hitChain.PopContextBox(box);
}
//----------------------------------------------------------------------
if (!isPointInArea)
{
switch (box.CssDisplay)
{
case Css.CssDisplay.TableRow:
{
foreach (CssBox childBox in box.GetChildBoxIter())
{
if (HitTest(childBox, boxHitLocalX, boxHitLocalY, hitChain))
{
return(true);
}
}
}
break;
}
//exit
return(false);
}
//----------------------------------------------------------------------
//at here point is in the area***
hitChain.PushContextBox(box);
if (box.IsCustomCssBox)
{
//custom css box
//return true= stop here
if (box.CustomContentHitTest(boxHitLocalX, boxHitLocalY, hitChain))
{
hitChain.PopContextBox(box);
return(true);
}
}
if (box.LineBoxCount > 0)
{
bool foundSomeLine = false;
foreach (CssLineBox lineBox in box.GetLineBoxIter())
{
//line box not overlap
if (lineBox.HitTest(boxHitLocalX, boxHitLocalY))
{
foundSomeLine = true;
float lineBoxLocalY = boxHitLocalY - lineBox.CachedLineTop;
//2.
hitChain.AddHit(lineBox, (int)boxHitLocalX, (int)lineBoxLocalY);
CssRun foundRun = BoxHitUtils.GetCssRunOnLocation(lineBox, (int)boxHitLocalX, (int)lineBoxLocalY);
//CssRun foundRun = BoxHitUtils.GetCssRunOnLocation(lineBox, (int)x, (int)y);
if (foundRun != null)
{
//3.
hitChain.AddHit(foundRun, (int)(boxHitLocalX - foundRun.Left), (int)lineBoxLocalY);
//4. go deeper for block run
if (foundRun.Kind == CssRunKind.BlockRun)
{
CssBlockRun blockRun = (CssBlockRun)foundRun;
CssLineBox hostLine = blockRun.HostLine;
//adjust with hostline
HitTest(blockRun.ContentBox,
(int)(boxHitLocalX + blockRun.ContentBox.LocalX - foundRun.Left),
(int)(boxHitLocalY - hostLine.CachedLineTop),
hitChain);
}
}
//found line box
hitChain.PopContextBox(box);
return(true);
}
else if (foundSomeLine)
{
return(false);
}
}
}
else
{
//iterate in child
//foreach (var childBox in box.GetChildBoxIter())
foreach (CssBox childBox in box.GetChildBoxBackwardIter())
{
if (HitTest(childBox, boxHitLocalX, boxHitLocalY, hitChain))
{
//recursive
hitChain.PopContextBox(box);
return(true);
}
}
}
hitChain.PopContextBox(box);
return(true);
}
public virtual bool CustomContentHitTest(float x, float y, CssBoxHitChain hitChain)
{
throw new NotImplementedException();
}
public static bool HitTest(CssBox box, float x, float y, CssBoxHitChain hitChain)
{
//--------------------------------------
float boxHitLocalX = x - box.LocalX;
float boxHitLocalY = y - box.LocalY;
bool isPointInArea = box.IsPointInArea(x, y);
//----------------------------------------------------------------------
if (isPointInArea)
{
hitChain.AddHit(box, (int)boxHitLocalX, (int)boxHitLocalY);
}
//check absolute layer first ***
if (box.HasAbsoluteLayer)
{
hitChain.PushContextBox(box);
foreach (var absBox in box.GetAbsoluteChildBoxBackwardIter())
{
if (HitTest(absBox, boxHitLocalX, boxHitLocalY, hitChain))
{
//found hit
hitChain.PopContextBox(box);
return true;
}
}
hitChain.PopContextBox(box);
}
//----------------------------------------------------------------------
if (!isPointInArea)
{
switch (box.CssDisplay)
{
case Css.CssDisplay.TableRow:
{
foreach (var childBox in box.GetChildBoxIter())
{
if (HitTest(childBox, x, y, hitChain))
{
return true;
}
}
}
break;
}
//exit
return false;
}
//----------------------------------------------------------------------
//at here point is in the area***
hitChain.PushContextBox(box);
if (box.IsCustomCssBox)
{
//custom css box
//return true= stop here
if (box.CustomContentHitTest(x, y, hitChain))
{
hitChain.PopContextBox(box);
return true;
}
}
if (box.LineBoxCount > 0)
{
bool foundSomeLine = false;
foreach (var lineBox in box.GetLineBoxIter())
{
//line box not overlap
if (lineBox.HitTest(boxHitLocalX, boxHitLocalY))
{
foundSomeLine = true;
float lineBoxLocalY = boxHitLocalY - lineBox.CachedLineTop;
//2.
hitChain.AddHit(lineBox, (int)boxHitLocalX, (int)lineBoxLocalY);
var foundRun = BoxHitUtils.GetCssRunOnLocation(lineBox, (int)boxHitLocalX, (int)lineBoxLocalY);
if (foundRun != null)
{
//3.
hitChain.AddHit(foundRun, (int)(boxHitLocalX - foundRun.Left), (int)lineBoxLocalY);
//4. go deeper for block run
if (foundRun.Kind == CssRunKind.BlockRun)
{
var blockRun = (CssBlockRun)foundRun;
CssLineBox hostLine = blockRun.HostLine;
//adjust with hostline
HitTest(((CssBlockRun)foundRun).ContentBox, (int)(boxHitLocalX - foundRun.Left), boxHitLocalY - hostLine.CachedLineTop, hitChain);
}
}
//found line box
hitChain.PopContextBox(box);
return true;
}
else if (foundSomeLine)
{
return false;
}
}
}
else
{
//iterate in child
foreach (var childBox in box.GetChildBoxIter())
{
if (HitTest(childBox, boxHitLocalX, boxHitLocalY, hitChain))
{
//recursive
hitChain.PopContextBox(box);
return true;
}
}
}
hitChain.PopContextBox(box);
return true;
}
void ReleaseHitChain(CssBoxHitChain hitChain)
{
hitChain.Clear();
this.hitChainPools.Push(hitChain);
}
void SetupEndHitPoint(CssBoxHitChain startChain, CssBoxHitChain endChain, IFonts ifonts)
{
//find global location of end point
HitInfo endHit = endChain.GetLastHit();
int xposOnEndLine = 0;
CssLineBox endline = null;
int run_sel_offset = 0;
//find endline first
this.endHitRunCharIndex = 0;
this.endHitRun = null;
switch (endHit.hitObjectKind)
{
default:
{
throw new NotSupportedException();
}
case HitObjectKind.Run:
{
CssRun endRun = (CssRun)endHit.hitObject;
//if (endRun.Text != null && endRun.Text.Contains("Jose"))
//{
//}
int run_sel_index;
endRun.FindSelectionPoint(ifonts,
endHit.localX,
out run_sel_index,
out run_sel_offset);
endline = endRun.HostLine;
xposOnEndLine = (int)(endRun.Left + run_sel_offset);
this.endHitRunCharIndex = run_sel_index;
this.endHitRun = endRun;
}
break;
case HitObjectKind.LineBox:
{
endline = (CssLineBox)endHit.hitObject;
xposOnEndLine = endHit.localX;
}
break;
case HitObjectKind.CssBox:
{
CssBox hitBox = (CssBox)endHit.hitObject;
endline = FindNearestLine(hitBox, endChain.RootGlobalY, 5);
xposOnEndLine = endHit.localX;
}
break;
}
#if DEBUG
if (xposOnEndLine == 0)
{
}
#endif
//----------------------------------
this.selectedLines = new List<CssLineBox>();
if (startHitHostLine == endline)
{
this.selectedLines.Add(endline);
startHitHostLine.Select(startLineBeginSelectionAtPixel, xposOnEndLine,
this.startHitRun, this.startHitRunCharIndex,
this.endHitRun, this.endHitRunCharIndex);
return; //early exit here ***
}
//----------------------------------
//select on different line
LineWalkVisitor lineWalkVisitor = null;
int breakAtLevel;
if (FindCommonGround(startChain, endChain, out breakAtLevel) && breakAtLevel > 0)
{
var hit1 = endChain.GetHitInfo(breakAtLevel).hitObject;
var hitBlockRun = hit1 as CssBlockRun;
//multiple select
//1. first part
if (hitBlockRun != null)
{
startHitHostLine.Select(startLineBeginSelectionAtPixel, (int)hitBlockRun.Left,
this.startHitRun, this.startHitRunCharIndex,
this.endHitRun, this.endHitRunCharIndex);
selectedLines.Add(this.startHitHostLine);
lineWalkVisitor = new LineWalkVisitor(hitBlockRun);
}
else
{
startHitHostLine.SelectPartialToEnd(startLineBeginSelectionAtPixel, this.startHitRun, this.startHitRunCharIndex);
selectedLines.Add(this.startHitHostLine);
lineWalkVisitor = new LineWalkVisitor(startHitHostLine);
}
}
else
{
startHitHostLine.SelectPartialToEnd(startLineBeginSelectionAtPixel, this.startHitRun, this.startHitRunCharIndex);
selectedLines.Add(this.startHitHostLine);
lineWalkVisitor = new LineWalkVisitor(startHitHostLine);
}
lineWalkVisitor.SetWalkTargetPosition(endChain.RootGlobalX, endChain.RootGlobalY);
lineWalkVisitor.Walk(endline, (lineCoverage, linebox, partialLineRun) =>
{
switch (lineCoverage)
{
case LineCoverage.EndLine:
{
//found end line
linebox.SelectPartialFromStart(xposOnEndLine, this.endHitRun, this.endHitRunCharIndex);
selectedLines.Add(linebox);
}
break;
case LineCoverage.PartialLine:
{
linebox.SelectPartialFromStart((int)partialLineRun.Right, this.endHitRun, this.endHitRunCharIndex);
selectedLines.Add(linebox);
}
break;
case LineCoverage.FullLine:
{
//check if hitpoint is in the line area
linebox.SelectFull();
selectedLines.Add(linebox);
}
break;
}
});
}
static void ForEachEventListenerBubbleUp(UIEventArgs e, CssBoxHitChain hitChain, EventListenerAction listenerAction)
{
for (int i = hitChain.Count - 1; i >= 0; --i)
{
//propagate up
var hitInfo = hitChain.GetHitInfo(i);
IEventListener controller = null;
switch (hitInfo.hitObjectKind)
{
default:
{
continue;
}
case HitObjectKind.Run:
{
CssRun run = (CssRun)hitInfo.hitObject;
controller = CssBox.UnsafeGetController(run.OwnerBox) as IEventListener;
}
break;
case HitObjectKind.CssBox:
{
CssBox box = (CssBox)hitInfo.hitObject;
controller = CssBox.UnsafeGetController(box) as IEventListener;
}
break;
}
//---------------------
if (controller != null)
{
//found controller
if (e.SourceHitElement == null)
{
e.SourceHitElement = controller;
}
e.CurrentContextElement = controller;
e.SetLocation(hitInfo.localX, hitInfo.localY);
if (listenerAction())
{
return;
}
}
}
}
void SetupStartHitPoint(CssBoxHitChain startChain, IFonts ifonts)
{
//find global location of start point
HitInfo startHit = startChain.GetLastHit();
//-----------------------------
this.startHitRun = null;
this.startHitRunCharIndex = 0;
switch (startHit.hitObjectKind)
{
case HitObjectKind.Run:
{
CssRun run = (CssRun)startHit.hitObject;
//-------------------------------------------------------
int sel_index;
int sel_offset;
run.FindSelectionPoint(ifonts,
startHit.localX,
out sel_index,
out sel_offset);
this.startHitRunCharIndex = sel_index;
//modify hitpoint
this.startHitHostLine = (CssLineBox)startChain.GetHitInfo(startChain.Count - 2).hitObject;
this.startLineBeginSelectionAtPixel = (int)(run.Left + sel_offset);
this.startHitRun = run;
}
break;
case HitObjectKind.LineBox:
{
this.startHitHostLine = (CssLineBox)startHit.hitObject;
this.startLineBeginSelectionAtPixel = startHit.localX;
//make global
}
break;
case HitObjectKind.CssBox:
{
CssBox box = (CssBox)startHit.hitObject;
//find first nearest line at point
CssLineBox startHitLine = FindNearestLine(box, startChain.RootGlobalY, 5);
this.startLineBeginSelectionAtPixel = 0;
if (startHitLine != null)
{
this.startHitHostLine = startHitLine;
}
else
{
//if not found?
this.startHitHostLine = null;
}
}
break;
default:
{
throw new NotSupportedException();
}
}
}
static void ForEachOnlyEventPortalBubbleUp(UIEventArgs e, CssBoxHitChain hitPointChain, EventPortalAction eventPortalAction)
{
//only listener that need tunnel down
for (int i = hitPointChain.Count - 1; i >= 0; --i)
{
//propagate up
var hitInfo = hitPointChain.GetHitInfo(i);
IEventPortal controller = null;
switch (hitInfo.hitObjectKind)
{
default:
{
continue;
}
case HitObjectKind.Run:
{
CssRun run = (CssRun)hitInfo.hitObject;
controller = CssBox.UnsafeGetController(run.OwnerBox) as IEventPortal;
}
break;
case HitObjectKind.CssBox:
{
CssBox box = (CssBox)hitInfo.hitObject;
controller = CssBox.UnsafeGetController(box) as IEventPortal;
}
break;
}
//---------------------
if (controller != null)
{
e.SetLocation(hitInfo.localX, hitInfo.localY);
if (eventPortalAction(controller))
{
return;
}
}
}
}
public void MouseMove(UIMouseMoveEventArgs e, CssBox startAt)
{
if (!_isBinded)
{
return;
}
if (startAt == null)
{
return;
}
//-----------------------------------------
int x = e.X;
int y = e.Y;
if (e.IsDragging && _latestMouseDownChain != null)
{
//dragging *** , if changed
if (_mousedownX != x || _mousedownY != y)
{
//handle mouse drag
CssBoxHitChain hitChain = GetFreeHitChain();
#if DEBUG
hitChain.debugEventPhase = CssBoxHitChain.dbugEventPhase.MouseMove;
#endif
hitChain.SetRootGlobalPosition(x, y);
BoxHitUtils.HitTest(startAt, x, y, hitChain);
SetEventOrigin(e, hitChain);
//---------------------------------------------------------
//propagate mouse drag
ForEachOnlyEventPortalBubbleUp(e, hitChain, (portal) =>
{
portal.PortalMouseMove(e);
return(true);
});
//---------------------------------------------------------
if (!e.CancelBubbling)
{
ClearPreviousSelection();
if (_latestMouseDownChain.Count > 0 && hitChain.Count > 0)
{
if (_htmlVisualRoot.LayoutVersion != _lastDomLayoutVersion)
{
//the dom has been changed so...
//need to evaluate hitchain at mousedown position again
int lastRootGlobalX = _latestMouseDownChain.RootGlobalX;
int lastRootGlobalY = _latestMouseDownChain.RootGlobalY;
_latestMouseDownChain.Clear();
_latestMouseDownChain.SetRootGlobalPosition(lastRootGlobalX, lastRootGlobalY);
BoxHitUtils.HitTest(_mouseDownStartAt, lastRootGlobalX, lastRootGlobalY, _latestMouseDownChain);
}
//create selection range
var newSelectionRange = new SelectionRange(
_latestMouseDownChain,
hitChain,
_textService);
if (newSelectionRange.IsValid)
{
_htmlVisualRoot.SetSelection(newSelectionRange);
}
else
{
_htmlVisualRoot.SetSelection(null);
}
}
else
{
_htmlVisualRoot.SetSelection(null);
}
ForEachEventListenerBubbleUp(e, hitChain, () =>
{
e.CurrentContextElement.ListenMouseMove(e);
return(true);
});
}
//---------------------------------------------------------
ReleaseHitChain(hitChain);
}
}
else
{
//mouse move
//---------------------------------------------------------
CssBoxHitChain hitChain = GetFreeHitChain();
#if DEBUG
hitChain.debugEventPhase = CssBoxHitChain.dbugEventPhase.MouseMove;
#endif
hitChain.SetRootGlobalPosition(x, y);
BoxHitUtils.HitTest(startAt, x, y, hitChain);
SetEventOrigin(e, hitChain);
//---------------------------------------------------------
ForEachOnlyEventPortalBubbleUp(e, hitChain, (portal) =>
{
portal.PortalMouseMove(e);
return(true);
});
//---------------------------------------------------------
if (!e.CancelBubbling)
{
ForEachEventListenerBubbleUp(e, hitChain, () =>
{
e.CurrentContextElement.ListenMouseMove(e);
return(true);
});
}
var cssbox = e.ExactHitObject as HtmlBoxes.CssBox;
if (cssbox != null)
{
switch (cssbox.CursorName)
{
case Css.CssCursorName.IBeam:
if (e.MouseCursorStyle != MouseCursorStyle.IBeam)
{
e.MouseCursorStyle = MouseCursorStyle.IBeam;
}
break;
case Css.CssCursorName.Hand:
case Css.CssCursorName.Pointer:
if (e.MouseCursorStyle != MouseCursorStyle.Pointer)
{
e.MouseCursorStyle = MouseCursorStyle.Pointer;
}
break;
case Css.CssCursorName.Default:
if (e.MouseCursorStyle != MouseCursorStyle.Default)
{
e.MouseCursorStyle = MouseCursorStyle.Default;
}
break;
}
}
else
{
var cssspan = e.ExactHitObject as HtmlBoxes.CssTextRun;
if (cssspan != null)
{
cssbox = cssspan.OwnerBox;
switch (cssbox.CursorName)
{
default:
e.MouseCursorStyle = MouseCursorStyle.IBeam;
break;
case Css.CssCursorName.Hand:
case Css.CssCursorName.Pointer:
if (e.MouseCursorStyle != MouseCursorStyle.Pointer)
{
e.MouseCursorStyle = MouseCursorStyle.Pointer;
}
break;
}
}
}
ReleaseHitChain(hitChain);
}
}
public override bool CustomContentHitTest(float x, float y, CssBoxHitChain hitChain)
{
return(true);//stop here
}
static bool IsOnTheSameLine(CssBoxHitChain startChain, CssBoxHitChain endChain)
{
CssLineBox startLineBox = GetLine(startChain.GetLastHit());
CssLineBox endLineBox = GetLine(endChain.GetLastHit());
return startLineBox != null && startLineBox == endLineBox;
}
