|
public static HitTest ( |
||
| box | ||
| x | float | |
| y | float | |
| hitChain | ||
| return | bool | |
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;
}
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 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);
}
}
