/// <summary>
/// Fixes up a range that is contained in a single header element.
/// </summary>
/// <param name="range">A range that is contained in a single header element.</param>
/// <param name="turnBold">Whether or not the text should be turning bold.</param>
private void FixupHeaderRange(MarkupRange range, bool turnBold)
{
IHTMLElement parentHeaderElement = range.ParentBlockElement();
if (parentHeaderElement == null || !ElementFilters.IsHeaderElement(parentHeaderElement))
{
Debug.Fail("Expected entire range to be inside a single header element.");
return;
}
MarkupRange expandedRange = range.Clone();
// Make sure we expand the selection to include any <font> tags that may be wrapping us.
MarkupPointerMoveHelper.MoveUnitBounded(expandedRange.Start, MarkupPointerMoveHelper.MoveDirection.LEFT,
MarkupPointerAdjacency.BeforeVisible, parentHeaderElement);
MarkupPointerMoveHelper.MoveUnitBounded(expandedRange.End, MarkupPointerMoveHelper.MoveDirection.RIGHT,
MarkupPointerAdjacency.BeforeVisible, parentHeaderElement);
// Walks in-scope elements and clears out any elements or styles that might affect the bold formatting.
var elementsToRemove = new List<IHTMLElement>();
expandedRange.WalkRange(
delegate (MarkupRange currentexpandedRange, MarkupContext context, string text)
{
IHTMLElement currentElement = context.Element;
if (currentElement != null && context.Context == _MARKUP_CONTEXT_TYPE.CONTEXT_TYPE_EnterScope)
{
if (IsStrongOrBold(currentElement))
{
elementsToRemove.Add(currentElement);
}
else if (IsFontableElement(currentElement) && HTMLElementHelper.IsBold((IHTMLElement2)currentElement) != turnBold)
{
currentElement.style.fontWeight = String.Empty;
}
}
return true;
}, true);
elementsToRemove.ForEach(e => markupServices.RemoveElement(e));
// Walks the range to find any segments of text that need to be fixed up.
var rangesToWrap = new List<MarkupRange>();
range.WalkRange(
delegate (MarkupRange currentRange, MarkupContext context, string text)
{
if (context.Context == _MARKUP_CONTEXT_TYPE.CONTEXT_TYPE_Text)
{
TextStyles currentTextStyles = new TextStyles(currentRange.Start);
if (currentTextStyles.Bold != turnBold)
{
rangesToWrap.Add(currentRange.Clone());
}
}
return true;
}, true);
rangesToWrap.ForEach(r => WrapRangeInFontIfNecessary(r, turnBold));
}
public static void ChangeElementTagIds(MshtmlMarkupServices markupServices, MarkupRange selection, _ELEMENT_TAG_ID[] tagBefore, _ELEMENT_TAG_ID tagAfter)
{
HtmlStyleHelper htmlStyleHelper = new HtmlStyleHelper(markupServices);
int parentStartDiff = 0;
MarkupRange rangeToChange;
bool selectionStartedEmpty = selection.IsEmpty();
if (selectionStartedEmpty)
{
// Operate on parent block element
rangeToChange = markupServices.CreateMarkupRange(selection.ParentBlockElement());
parentStartDiff = selection.Start.MarkupPosition - rangeToChange.Start.MarkupPosition;
}
else
{
rangeToChange = selection;
// If expanding the selection would not include any new text, then expand it.
// <h1>|abc|</h1> --> |<h1>abc</h1>|
rangeToChange.MoveOutwardIfNoText();
}
IHTMLElementFilter[] filters = new IHTMLElementFilter[tagBefore.Length];
for (int i = 0; i < tagBefore.Length; i++)
filters[i] = ElementFilters.CreateTagIdFilter(markupServices.GetNameForTagId(tagBefore[i]));
IHTMLElement[] elements = rangeToChange.GetElements(ElementFilters.CreateCompoundElementFilter(filters), false);
foreach (IHTMLElement element in elements)
{
MarkupRange elementRange = markupServices.CreateMarkupRange(element);
int startPositionDiff = rangeToChange.Start.MarkupPosition - elementRange.Start.MarkupPosition;
int endPositionDiff = rangeToChange.End.MarkupPosition - elementRange.End.MarkupPosition;
// @RIBBON TODO: Appropriately preserve element attributes when changing tag ids?
MarkupRange newElementRange = markupServices.CreateMarkupRange(htmlStyleHelper.WrapRangeInSpanElement(tagAfter, null, elementRange));
markupServices.RemoveElement(element);
MarkupPointer startPointer = rangeToChange.Start.Clone();
startPointer.MoveToMarkupPosition(startPointer.Container, newElementRange.Start.MarkupPosition + startPositionDiff);
if (startPointer.IsLeftOf(rangeToChange.Start))
rangeToChange.Start.MoveToPointer(startPointer);
MarkupPointer endPointer = rangeToChange.End.Clone();
endPointer.MoveToMarkupPosition(endPointer.Container, newElementRange.End.MarkupPosition + endPositionDiff);
if (endPointer.IsLeftOf(elementRange.End))
rangeToChange.End.MoveToPointer(endPointer);
}
if (selectionStartedEmpty)
{
selection.Start.MoveToMarkupPosition(selection.Start.Container, rangeToChange.Start.MarkupPosition + parentStartDiff);
selection.Collapse(true);
}
}