/// <summary>
/// Inserts the extended entry break into the editor.
/// </summary>
internal void InsertExtendedEntryBreak()
{
IHTMLDocument3 doc3 = (IHTMLDocument3)HTMLElement.document;
IHTMLElement2 entryBreak = (IHTMLElement2)doc3.getElementById(EXTENDED_ENTRY_ID);
if (entryBreak == null)
{
using (IUndoUnit undo = EditorContext.CreateUndoUnit())
{
using (EditorContext.DamageServices.CreateDamageTracker(ElementRange.Clone(), true))
{
MarkupPointer insertionPoint =
EditorContext.MarkupServices.CreateMarkupPointer(EditorContext.Selection.SelectedMarkupRange.Start);
//delete the parent block element of the insertion point if it is empty (bug 421500)
DeleteInsertionTargetBlockIfEmpty(insertionPoint);
IHTMLElement extendedEntryBreak = InsertExtendedEntryBreak(insertionPoint);
//reselect the insertion point
MarkupRange selection = EditorContext.MarkupServices.CreateMarkupRange();
insertionPoint.MoveAdjacentToElement(extendedEntryBreak, _ELEMENT_ADJACENCY.ELEM_ADJ_AfterEnd);
MarkupPointerMoveHelper.MoveUnitBounded(
insertionPoint, MarkupPointerMoveHelper.MoveDirection.RIGHT,
MarkupPointerAdjacency.AfterEnterBlock | MarkupPointerAdjacency.BeforeText
, HTMLElement);
selection.Start.MoveToPointer(insertionPoint);
selection.End.MoveToPointer(insertionPoint);
selection.ToTextRange().select();
}
undo.Commit();
}
}
}
/// <summary>
/// Select all of the text in the region.
/// </summary>
protected void SelectAll()
{
MarkupRange selectRange = ElementRange.Clone();
selectRange.MoveToElement(HTMLElement, false);
selectRange.ToTextRange().select();
}
/// <summary>
/// Returns true if shift+tab focused region changing is supported for the current edit location
/// </summary>
/// <returns></returns>
private bool ShiftTabFocusChangeSupported()
{
//Shift-tab is only supported if the caret is positioned at the beginning of the post
//If the selection is currently inside a non-blockquote block element with no visible content
//to the left of it, then focus change is supported.
if (!EditorContext.Selection.SelectedMarkupRange.IsEmpty())
{
return(false);
}
MarkupRange range = ElementRange.Clone();
range.Start.MoveAdjacentToElement(HTMLElement, _ELEMENT_ADJACENCY.ELEM_ADJ_AfterBegin);
range.End = EditorContext.Selection.SelectedMarkupRange.Start;
//if there is any text between the caret and the beginning of the post,
//then ShiftTab focus changing is not allowed.
string text = range.Text;
if (text != null && range.Text.Trim() != String.Empty)
{
return(false);
}
MarkupContext context = new MarkupContext();
range.Start.Right(true, context);
int blockElementDepth = 0;
while (range.Start.IsLeftOfOrEqualTo(range.End))
{
if (context.Context == _MARKUP_CONTEXT_TYPE.CONTEXT_TYPE_EnterScope || context.Context == _MARKUP_CONTEXT_TYPE.CONTEXT_TYPE_NoScope)
{
string tagName = context.Element.tagName;
if (tagName.Equals("BLOCKQUOTE") || ElementFilters.IsListElement(context.Element) || ElementFilters.IsListItemElement(context.Element))
{
return(false); //ShiftTab in a blockquote or list implies "un-blockquote" or "un-list"
}
else if (ElementFilters.IsBlockElement(context.Element))
{
blockElementDepth++;
if (blockElementDepth > 1)
{
return(false); //there are multiple block elements, so this is not the beginning
}
}
else if (ElementFilters.IsVisibleEmptyElement(context.Element))
{
return(false); //there is a visible empty element (like an image), so this is not the beginning
}
}
else if (context.Context == _MARKUP_CONTEXT_TYPE.CONTEXT_TYPE_ExitScope)
{
if (ElementFilters.IsVisibleEmptyElement(context.Element))
{
return(false); //there is a visible empty element (like an image), so this is not the beginning
}
}
range.Start.Right(true, context);
}
return(true);
}