Пример #1
0
        /// <summary>
        /// Create a text range spanning the specified markup positions.
        /// </summary>
        /// <param name="start">the start point of the text range</param>
        /// <param name="end">the end point of the text range</param>
        /// <returns></returns>
        public IHTMLTxtRange CreateTextRange(MarkupPointer start, MarkupPointer end)
        {
            // when switching between wywiwyg and source view sometimes .body is null
            // and this throws a null ref exception that we catch (can be detected by enabling
            // exception breaking in the debugger)
            IHTMLTxtRange range = (Document.body as IHTMLBodyElement).createTextRange();

            MarkupServices.MoveRangeToPointers(start, end, range);
            return(range);
        }
Пример #2
0
        /// <summary>
        /// Create a MarkupRange from a TextRange.
        /// </summary>
        /// <param name="textRange"></param>
        /// <returns></returns>
        public MarkupRange CreateMarkupRange(IHTMLTxtRange textRange)
        {
            MarkupPointer Begin = CreateMarkupPointer();
            MarkupPointer End   = CreateMarkupPointer();

            End.Gravity = _POINTER_GRAVITY.POINTER_GRAVITY_Right;
            MovePointersToRange(textRange, Begin, End);
            MarkupRange markupRange = new MarkupRange(Begin, End, this);

            return(markupRange);
        }
Пример #3
0
        /// <summary>
        /// Create a MarkupRange from that surrounds an Element.
        /// </summary>
        /// <returns></returns>
        public MarkupRange CreateMarkupRange(IHTMLElement element, bool outside)
        {
            _ELEMENT_ADJACENCY beginAdj = outside ? _ELEMENT_ADJACENCY.ELEM_ADJ_BeforeBegin : _ELEMENT_ADJACENCY.ELEM_ADJ_AfterBegin;
            _ELEMENT_ADJACENCY endAdj   = outside ? _ELEMENT_ADJACENCY.ELEM_ADJ_AfterEnd : _ELEMENT_ADJACENCY.ELEM_ADJ_BeforeEnd;
            MarkupPointer      Begin    = CreateMarkupPointer(element, beginAdj);
            MarkupPointer      End      = CreateMarkupPointer(element, endAdj);

            End.Gravity = _POINTER_GRAVITY.POINTER_GRAVITY_Right;
            MarkupRange markupRange = new MarkupRange(Begin, End, this);

            return(markupRange);
        }
Пример #4
0
        /// <summary>
        /// Returns true if the specified element begins and ends within the range.
        /// </summary>
        /// <param name="e"></param>
        /// <returns></returns>
        private bool isInScope(IHTMLElement e)
        {
            MarkupPointer p = MarkupServices.CreateMarkupPointer(e, _ELEMENT_ADJACENCY.ELEM_ADJ_BeforeBegin);

            if (p.IsRightOfOrEqualTo(Start))
            {
                p = MarkupServices.CreateMarkupPointer(e, _ELEMENT_ADJACENCY.ELEM_ADJ_AfterEnd);
                if (p.IsLeftOfOrEqualTo(End))
                {
                    return(true);
                }
            }
            return(false);
        }
Пример #5
0
        ///// <summary>
        ///// Gets the elements in the range that match the filter.
        ///// </summary>
        ///// <param name="filter">the delegate testing each element to determine if it should be added to the list of elements to return</param>
        ///// <param name="inScopeElementsOnly">if true, the only</param>
        ///// <returns></returns>
        //public IHTMLElement[] GetElements(IHTMLElementFilter filter, bool inScopeElementsOnly)
        //{
        //    ArrayList list = new ArrayList();
        //    if (!IsEmpty())
        //    {
        //        Hashtable usedElements = new Hashtable();
        //        MarkupPointer p = MarkupServices.CreateMarkupPointer(Start);
        //        MarkupPointer end = MarkupServices.CreateMarkupPointer(End);
        //        MarkupContext context = p.Right(false);

        //        //move p through the range to locate each the elements adding elements that pass the filter
        //        while (p.IsLeftOfOrEqualTo(end))
        //        {
        //            if (context.Context == _MARKUP_CONTEXT_TYPE.CONTEXT_TYPE_EnterScope
        //                || context.Context == _MARKUP_CONTEXT_TYPE.CONTEXT_TYPE_ExitScope
        //                || context.Context == _MARKUP_CONTEXT_TYPE.CONTEXT_TYPE_NoScope)
        //            {
        //                if (usedElements[context.Element] == null)
        //                {
        //                    if ((inScopeElementsOnly && isInScope(context.Element)) || !inScopeElementsOnly)
        //                        if (filter(context.Element))
        //                        {
        //                            list.Add(context.Element);
        //                        }

        //                    //cache the fact that we've already tested this element.
        //                    usedElements[context.Element] = context.Element;
        //                }
        //            }
        //            p.Right(true, context);
        //        }
        //    }
        //    return HTMLElementHelper.ToElementArray(list);
        //}

        /// <summary>
        /// Gets the first element in the range that match the filter.
        /// </summary>
        /// <param name="filter">the delegate testing each element to determine if it should be added to the list of elements to return</param>
        /// <param name="inScopeElementsOnly">if true, the only</param>
        /// <returns></returns>
        public IHTMLElement GetFirstElement(IHTMLElementFilter filter, bool inScopeElementsOnly)
        {
            ArrayList list = new ArrayList();

            if (!IsEmpty())
            {
                Hashtable     usedElements = new Hashtable();
                MarkupPointer p            = MarkupServices.CreateMarkupPointer(Start);
                MarkupPointer end          = MarkupServices.CreateMarkupPointer(End);
                MarkupContext context      = p.Right(false);

                //move p through the range to locate each the elements adding elements that pass the filter
                while (p.IsLeftOfOrEqualTo(end))
                {
                    if (context.Context == _MARKUP_CONTEXT_TYPE.CONTEXT_TYPE_EnterScope ||
                        context.Context == _MARKUP_CONTEXT_TYPE.CONTEXT_TYPE_ExitScope ||
                        context.Context == _MARKUP_CONTEXT_TYPE.CONTEXT_TYPE_NoScope)
                    {
                        if (usedElements[context.Element] == null)
                        {
                            if ((inScopeElementsOnly && isInScope(context.Element)) || !inScopeElementsOnly)
                            {
                                if (filter(context.Element))
                                {
                                    return(context.Element);
                                }
                            }

                            //cache the fact that we've already tested this element.
                            usedElements[context.Element] = context.Element;
                        }
                    }
                    p.Right(true, context);
                }
            }
            return(null);
        }
Пример #6
0
 /// <summary>
 /// Initialize with begin and end pointers
 /// </summary>
 /// <param name="start">start</param>
 /// <param name="end">end</param>
 /// <param name="markupServices"></param>
 internal MarkupRange(MarkupPointer start, MarkupPointer end, MshtmlMarkupServices markupServices)
 {
     Start          = start;
     End            = end;
     MarkupServices = markupServices;
 }
Пример #7
0
 /// <summary>
 /// Positions pointers at the edges of an existing range.
 /// </summary>
 /// <param name="start">the pointer positioned at the start of the range</param>
 /// <param name="end">the pointer position at the end of the range</param>
 /// <param name="range">the text range to move</param>
 public void MoveRangeToPointers(MarkupPointer start, MarkupPointer end, IHTMLTxtRange range)
 {
     MarkupServices.MoveRangeToPointers(start.PointerRaw, end.PointerRaw, range);
 }
Пример #8
0
 /// <summary>
 /// Positions pointers at the edges of an existing range.
 /// </summary>
 /// <param name="range">the text range to move to</param>
 /// <param name="start">the pointer to position at the start of the range</param>
 /// <param name="end">the pointer to position at the end of the range</param>
 public void MovePointersToRange(IHTMLTxtRange range, MarkupPointer start, MarkupPointer end)
 {
     MarkupServices.MovePointersToRange(range, start.PointerRaw, end.PointerRaw);
 }
Пример #9
0
        /// <summary>
        /// Create a MarkupRange from a set of MarkupPointers.
        /// </summary>
        /// <param name="start"></param>
        /// <param name="end"></param>
        /// <returns></returns>
        public MarkupRange CreateMarkupRange(MarkupPointer start, MarkupPointer end)
        {
            MarkupRange markupRange = new MarkupRange(start, end, this);

            return(markupRange);
        }
Пример #10
0
 /// <summary>
 /// Moves this pointer to another pointer's location.
 /// </summary>
 /// <param name="p"></param>
 public void MoveToPointer(MarkupPointer p)
 {
     PointerRaw.MoveToPointer(p.PointerRaw);
 }