コード例 #1
0
        //this is similar to the GetTopLevelElements except will also return table cells if correct filter
        // is set and recurse is equal to true
        public IHTMLElement[] GetTopLevelBlocksAndCells(IHTMLElementFilter filter, bool recurse)
        {
            ArrayList list         = new ArrayList();
            Hashtable usedElements = new Hashtable();

            MarkupPointer p       = MarkupServices.CreateMarkupPointer(Start);
            MarkupContext context = p.Right(false);

            //move p through the range to locate each of the top level elements
            while (p.IsLeftOf(End))
            {
                if (context.Context == _MARKUP_CONTEXT_TYPE.CONTEXT_TYPE_EnterScope || context.Context == _MARKUP_CONTEXT_TYPE.CONTEXT_TYPE_NoScope)
                {
                    p.MoveAdjacentToElement(context.Element, _ELEMENT_ADJACENCY.ELEM_ADJ_AfterEnd);
                    if (usedElements[context.Element] == null)
                    {
                        if (p.IsLeftOfOrEqualTo(End) && (filter == null || filter(context.Element)))
                        {
                            list.Add(context.Element);
                        }
                        //special case--inside of a table element, want to get out the cells inside
                        else if (recurse && ElementFilters.TABLE_ELEMENTS(context.Element))
                        {
                            MarkupRange newRange = MarkupServices.CreateMarkupRange(context.Element);
                            newRange.Start.MoveAdjacentToElement(context.Element, _ELEMENT_ADJACENCY.ELEM_ADJ_AfterBegin);
                            if (newRange.Start.IsLeftOf(Start))
                            {
                                newRange.Start.MoveToPointer(Start);
                            }
                            if (newRange.End.IsRightOf(End))
                            {
                                newRange.End.MoveToPointer(End);
                            }
                            //recursively check inside table element for table cells
                            list.AddRange(newRange.GetTopLevelBlocksAndCells(filter, true));
                        }
                        //cache the fact that we've already tested this element.
                        usedElements[context.Element] = context.Element;
                    }
                }
                p.Right(true, context);
            }
            return(HTMLElementHelper.ToElementArray(list));
        }
コード例 #2
0
 private List<IHTMLElement> GetBlockElements(MarkupRange bounds)
 {
     return new List<IHTMLElement>(bounds.GetTopLevelBlocksAndCells(ElementFilters.IsBlockOrTableCellElement, true));
 }