private bool IsSplitStopElement(IHTMLElement e) { return (ElementFilters.IsListItemElement(e) || ElementFilters.IsBlockQuoteElement(e) || ElementFilters.IsTableCellElement(e)); }
private bool ShouldDeleteForBlockFormatting(IHTMLElement e) { if (e == null || e.sourceIndex == -1) { return(false); } Debug.Assert(!ElementFilters.IsListItemElement(e) && !ElementFilters.IsBlockQuoteElement(e) && !ElementFilters.IsTableCellElement(e), ""); return (ElementFilters.IsBlockElement(e) && !ElementFilters.IsListItemElement(e) && !ElementFilters.IsBlockQuoteElement(e)); }
/// <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); }