/// <summary>
/// Creates a new instance of the <see cref="ElementRef"/> class
/// </summary>
/// <param name="he">element handle</param>
/// <param name="rt">reference text</param>
/// <param name="attach">uses existing handle</param>
private ElementRef(Element he, ElementRefType rt, bool attach)
{
Debug.Assert(rt != ElementRefType.Weak || !attach, "Weak handle cannot be attached");
_referenceType = rt;
switch (_referenceType)
{
case ElementRefType.Weak:
GC.SuppressFinalize(this);
_elementHwnd = SciterDomApi.GetElementHwnd(he, true);
_element = new IntPtr(SciterDomApi.GetElementUID(he));
break;
case ElementRefType.Normal:
_element = he.Handle;
if (!attach)
{
SciterDomApi.UseElement(he.Handle);
}
break;
default:
throw new ArgumentOutOfRangeException("rt", rt.ToString());
}
}
/// <summary>
/// Updates item text & type
/// </summary>
protected override void UpdateItem(int position, object item, Element element)
{
var container = GetItemsContainer();
var row = container[position];
for (int i = 0; i < _properties.Count; ++i)
{
var prop = _properties[i];
var cellText = prop != null ? ConvertUtility.GetValue(prop, item) : String.Empty;
row.Children[i].Text = cellText;
}
UpdateItemType(position, element);
}
/// <summary>
/// Dispatches key
/// </summary>
private bool ProcessKey(Element container, string keyname)
{
Debug.Assert(!String.IsNullOrEmpty(keyname), "keyname cannot be null");
var selector = String.Format("[accesskey=='{0}'],[accesskey-alt=='{0}']", keyname);
var element = container.Find(selector, e => e.IsVisible && e.IsEnabled);
if (element != null)
{
if (element.CallBehaviorMethod(BehaviorMethods.DoClick))
return true;
var parent = element.Parent;
parent.SendEvent(BehaviorEventType.ActivateChild, element);
}
return false;
}
/// <summary>
/// SciterCallMethod - calls behavior specific method.
/// </summary>
public bool CallBehaviorMethod(Element he, BehaviorMethods methodId, out object result)
{
result = null;
switch (methodId)
{
case BehaviorMethods.DoClick:
var methodParam = new METHOD_PARAMS() { methodID = (int)METHOD_PARAMS.BEHAVIOR_METHOD_IDENTIFIERS.DO_CLICK };
var res = SciterCallBehaviorMethod(he.Handle, ref methodParam);
if (res == ScDomResult.SCDOM_OK_NOT_HANDLED)
return false;
CheckResult(res);
return true;
}
return false;
}
/// <summary>
/// Determines the index of specified element in the container
/// </summary>
public int IndexOf(Element element)
{
return Element.Children.IndexOf(element);
}
/// <summary>
/// Updates item text & type
/// </summary>
protected override void UpdateItem(int position, object item, Element element)
{
element.Text = GetItemText(item);
UpdateItemType(position, element);
}
/// <summary>
/// Creates a new instance of the <see cref="ElementContainer"/> class
/// </summary>
public ElementContainer(Element element)
{
#region Arguments checking
if (element == null)
throw new ArgumentNullException("element");
#endregion
Element = element;
}
/// <summary>
/// Set current item
/// </summary>
protected virtual void SetCurrentItem(Element ctl, Element item)
{
// previously selected item
var prev_current = ctl.Find(":root > :current");
var prev = ctl.Find(":root > :expanded");
if (prev_current != null && prev_current != item)
prev_current.SetState(ElementState.None, ElementState.Current);
if (prev != null)
{
if (prev == item)
return;
prev.SetState(ElementState.None, ElementState.Current | ElementState.Expanded);
}
item.SetState(ElementState.Current | ElementState.Expanded);
item.ScrollToView();
}
/// <summary>
/// Creates a new instance of the <see cref="ElementEventArgs"/> class
/// </summary>
/// <param name="element"></param>
internal ElementEventArgs(Element element)
{
_element = element;
}
/// <summary>
/// Creates a new instance of the <see cref="MethodCallEventArgs"/> class
/// </summary>
internal MethodCallEventArgs(Element element)
: base(element)
{
}
/// <summary>
/// Post event by sinking/bubbling on the parent/child chain of this element
/// </summary>
public void PostEvent(BehaviorEventType eventCode, Element source)
{
var reason = default(IntPtr);
SciterDomApi.PostEvent(this, eventCode, reason, source);
}
/// <summary>
/// Send event by sinking/bubbling on the parent/child chain of this element
/// </summary>
public bool SendEvent(BehaviorEventType eventCode, Element source)
{
var reason = default(IntPtr);
return SciterDomApi.SendEvent(this, eventCode, reason, source);
}
/// <summary>
/// Creates a new instance of the <see cref="DrawEventArgs"/> class
/// </summary>
internal DrawEventArgs(Element element)
: base(element)
{
}
/// <summary>
/// Determines the index of specified element in the container
/// </summary>
public int IndexOf(Element element)
{
var index = Element.Children.IndexOf(element);
if (index > 0)
return index - HeaderSize;
return -1;
}
/// <summary>
/// Inserts element at specified position
/// </summary>
public void InsertElement(Element element, int position)
{
Element.InsertElement(element, position + HeaderSize);
}
/// <summary>
/// Creates a new instance of the <see cref="ElementContainer"/> class
/// </summary>
public ElementContainer(Element element, int headerSize)
{
#region Arguments checking
if (element == null)
throw new ArgumentNullException("element");
if (headerSize < 0)
throw new ArgumentNullException("headerSize");
#endregion
Element = element;
HeaderSize = headerSize;
}
/// <summary>
/// Creates a new instance of the <see cref="AttachBehaviorEventArgs"/> class
/// </summary>
/// <param name="notification"></param>
internal AttachBehaviorEventArgs(Element element, String behaviorName)
{
Element = element;
BehaviorName = behaviorName;
}
/// <summary>
/// Find target item
/// </summary>
private Element FindTargetItem(Element ctl, Element target)
{
if (target == ctl)
return null;
if (target == null)
return null;
var parent = target.Parent;
if (parent == null)
return target;
if (target.Test("li > .caption"))
return parent;
return FindTargetItem(ctl, parent);
}
/// <summary>
/// Inserts element at specified position
/// </summary>
public void InsertElement(Element element, int position)
{
Element.InsertElement(element, position);
}
/// <summary>
/// Deletes element from the DOM Tree
/// </summary>
public void DeleteElement(Element element)
{
CheckResult(SciterDeleteElement(element.Handle));
}
/// <summary>
/// Stores element reference in the inline storage
/// </summary>
/// <returns>true if element was successfully stored</returns>
private bool SetElementFast(IntPtr helement, Element element)
{
if (_eax.Key == IntPtr.Zero)
{
_eax.Key = helement;
_eax.Value = element;
return true;
}
if (_ebx.Key == IntPtr.Zero)
{
_ebx.Key = helement;
_ebx.Value = element;
return true;
}
if (_ecx.Key == IntPtr.Zero)
{
_ecx.Key = helement;
_ecx.Value = element;
return true;
}
if (_edx.Key == IntPtr.Zero)
{
_edx.Key = helement;
_edx.Value = element;
return true;
}
return false;
}
/// <summary>
/// Creates a new instance of the <see cref="InputEventArgs"/> class
/// </summary>
public InputEventArgs(Element element, Phase phase)
: base(element)
{
Phase = phase;
}
/// <summary>
/// Creates a new instance of the <see cref="ElementRef"/> class
/// </summary>
internal ElementRef(Element he, ElementRefType rt)
: this(he, rt, false)
{
}
/// <summary>
/// Inserts child to the elemets tree
/// </summary>
public void InsertElement(Element child, int pos)
{
SciterDomApi.InsertElement(child, this, pos);
}
/// <summary>
/// Creates a new instance of the <see cref="MouseEventArgs"/> class
/// </summary>
internal MouseEventArgs(Element element, Phase phase)
: base(element, phase)
{
}
/// <summary>
/// Shows block element (DIV) in popup window.
/// </summary>
public void ShowPopup(Element anchor, PopupPlacement placement)
{
SciterDomApi.ShowPopup(this, anchor, placement);
}
/// <summary>
/// Releases the mouse capture from the specified element.
/// </summary>
public void ReleaseCapture(Element element)
{
ReleaseCapture();
}
/// <summary>
/// Assigns a new dom element
/// </summary>
private void SetDomElement(Element element)
{
Debug.Assert(ElementRef == null);
if (element != null)
{
ElementRef = element.Use();
element.AttachBehavior(this);
GC.ReRegisterForFinalize(this);
// Forces element update after property synchronization
element.Update();
}
}
/// <summary>
/// Creates a new instance of the <see cref="FocusEventArgs"/> class
/// </summary>
internal FocusEventArgs(Element element, Phase phase)
: base(element, phase)
{
}
public uint dataType; // data text passed "as is" from HTMLayoutRequestElementData
#endregion Fields
#region Constructors
/// <summary>
/// Creates a new instance of the <see cref="DataArrivedEventArgs"/> class
/// </summary>
internal DataArrivedEventArgs(Element element)
: base(element)
{
}