protected virtual void Deselect()
{
MarkupRange range = EditorContext.MarkupServices.CreateMarkupRange(HTMLElement);
range.Start.MoveAdjacentToElement(HTMLElement, _ELEMENT_ADJACENCY.ELEM_ADJ_BeforeBegin);
range.Collapse(true);
range.ToTextRange().select();
}
private string GetHtmlText(out MarkupPointer blockBoundary)
{
MarkupRange blockRange = _blogPostHtmlEditorControl.SelectedMarkupRange.Clone();
MarkupRange textRange = blockRange.Clone();
IHTMLElement ele = blockRange.ParentElement(ElementFilters.IsBlockOrTableCellOrBodyElement);
if (ele == null)
{
blockBoundary = null;
return(String.Empty);
}
blockRange.MoveToElement(ele, false);
blockBoundary = blockRange.Start;
// Fix Bug 616152 - We want the start and end pointer to match so
// we can look back from the start of the insertion point (not the end,
// which would include the selection that is going to be overwritten)
textRange.Collapse(true);
// Fix bug WinLive 59172: Specific characters of mixed characters are broken in mail body after press the 'Enter' key
// Caused by using MOVEUNIT_PREVCHAR to navigate into Unicode surrogate (32-bit) characters. We work around this by moving
// only at word or block boundaries.
string html = null;
do
{
int startPos = textRange.Start.MarkupPosition;
textRange.Start.MoveUnitBounded(_MOVEUNIT_ACTION.MOVEUNIT_PREVWORDBEGIN, blockBoundary);
if (textRange.Start.MarkupPosition == startPos)
{
// PREVWORDBEGIN didn't actually move us, due to no word being available.
// To avoid an infinite loop, just move the text range to include the whole
// block and move on.
textRange.Start.MoveToPointer(blockRange.Start);
break;
}
if (textRange.Positioned && textRange.Start.IsLeftOfOrEqualTo(textRange.End))
{
html = MarkupHelpers.GetRangeTextFast(textRange);
}
html = html ?? string.Empty;
} while (html.Length < MinLookBack && textRange.Start.IsRightOf(blockRange.Start));
if (html == null && textRange.Positioned && textRange.Start.IsLeftOfOrEqualTo(textRange.End))
{
html = MarkupHelpers.GetRangeTextFast(textRange);
}
return(html ?? string.Empty);
}
private MarkupRange AdjustSelection()
{
MarkupRange selection = CreateMaxSafeRange(SelectedMarkupRange);
if (selection.IsEmpty())
{
MarkupRange editableRange = MarkupHelpers.GetEditableRange(selection.Start.CurrentScope, MarkupServices);
MarkupPointerMoveHelper.MoveUnitBounded(selection.Start,
MarkupPointerMoveHelper.MoveDirection.LEFT,
MarkupPointerAdjacency.BeforeVisible | MarkupPointerAdjacency.BeforeEnterScope,
editableRange.Start);
selection.Collapse(true);
}
selection.ToTextRange().select();
return(selection);
}
internal bool Restore(MarkupRange selection, MarkupRange bounds)
{
if (initialMarkup == null)
{
return(false);
}
NormalizeBounds(ref bounds);
/*
* if (initialMarkup != bounds.HtmlText)
* {
* Trace.Fail("Unexpected markup");
* Trace.WriteLine(initialMarkup);
* Trace.WriteLine(bounds.HtmlText);
* return false;
* }
*/
selection.Start.MoveToPointer(bounds.Start);
if (movesRight == int.MaxValue)
{
selection.Start.MoveToPointer(bounds.End);
}
else
{
for (int i = 0; i < movesRight; i++)
{
selection.Start.Right(true);
}
}
for (int i = 0; i < charsLeft; i++)
{
selection.Start.MoveUnit(_MOVEUNIT_ACTION.MOVEUNIT_PREVCHAR);
}
selection.Collapse(true);
selection.ToTextRange().select();
Debug.Assert(bounds.InRange(selection, true), "Selection was out of bounds");
return(true);
}
private void ExpandDamageToPreviousWord(MarkupRange damageRange)
{
MarkupRange previousWordRange = damageRange.Clone();
previousWordRange.Start.MoveUnit(_MOVEUNIT_ACTION.MOVEUNIT_PREVWORDBEGIN);
// If we were already at the first word in the document, moving to the previous word would have put the
// MarkupPointer outside the body element.
if (previousWordRange.Start.GetParentElement(ElementFilters.BODY_ELEMENT) != null)
{
previousWordRange.Collapse(true);
previousWordRange.End.MoveUnit(_MOVEUNIT_ACTION.MOVEUNIT_NEXTWORDEND);
if (!previousWordRange.IsEmpty() && !_editorControl.IgnoreRangeForSpellChecking(previousWordRange))
{
damageRange.Start.MoveToPointer(previousWordRange.Start);
}
}
}
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);
}
}
private MarkupRange ApplyInlineTag(_ELEMENT_TAG_ID tagId, string attributes, MarkupRange selection)
{
MarkupRange newSelection = _markupServices.CreateMarkupRange();
// If the selection is empty, then just insert the tag
if (selection.IsEmpty())
{
newSelection.MoveToElement(WrapRangeInSpanElement(tagId, attributes, selection), false);
return(newSelection);
}
// Start at the beginning of the selection move forward until you hit a block start/exit context or the end of the selection
bool keepApplying = true;
MarkupContext contextStart = new MarkupContext();
MarkupRange blockFreeRange = _markupServices.CreateMarkupRange(selection.Start.Clone(), selection.Start.Clone());
MarkupPointer currentPointer = _markupServices.CreateMarkupPointer(blockFreeRange.Start);
while (keepApplying)
{
// Check if moving right would be beyond the bounds of the selection.
if (currentPointer.IsRightOfOrEqualTo(selection.End))
{
// We've hit the end of the selection, so we're done.
keepApplying = false;
Debug.Assert(blockFreeRange.Start.IsLeftOfOrEqualTo(selection.End));
blockFreeRange.End.MoveToPointer(selection.End.IsLeftOf(currentPointer) ? selection.End : currentPointer);
if (ShouldApplyInlineTagToBlockFreeSelection(blockFreeRange))
{
newSelection.ExpandToInclude(ApplyInlineTagToBlockFreeSelection(tagId, attributes, blockFreeRange));
}
break;
}
// Check if the next context is entering or exiting a block.
currentPointer.Right(false, contextStart);
if (contextStart.Element != null && ElementFilters.IsBlockElement(contextStart.Element))
{
switch (contextStart.Context)
{
case _MARKUP_CONTEXT_TYPE.CONTEXT_TYPE_EnterScope:
case _MARKUP_CONTEXT_TYPE.CONTEXT_TYPE_ExitScope:
{
blockFreeRange.End.MoveToPointer(selection.End.IsLeftOf(currentPointer) ? selection.End : currentPointer);
if (ShouldApplyInlineTagToBlockFreeSelection(blockFreeRange))
{
newSelection.ExpandToInclude(ApplyInlineTagToBlockFreeSelection(tagId, attributes, blockFreeRange));
}
if (contextStart.Context == _MARKUP_CONTEXT_TYPE.CONTEXT_TYPE_EnterScope)
{
blockFreeRange.Start.MoveAdjacentToElement(contextStart.Element, _ELEMENT_ADJACENCY.ELEM_ADJ_AfterBegin);
}
else if (contextStart.Context == _MARKUP_CONTEXT_TYPE.CONTEXT_TYPE_ExitScope)
{
blockFreeRange.Start.MoveAdjacentToElement(contextStart.Element, _ELEMENT_ADJACENCY.ELEM_ADJ_AfterEnd);
}
blockFreeRange.Collapse(true);
}
break;
case _MARKUP_CONTEXT_TYPE.CONTEXT_TYPE_None:
{
keepApplying = false;
blockFreeRange.End.MoveToPointer(selection.End.IsLeftOf(currentPointer) ? selection.End : currentPointer);
if (ShouldApplyInlineTagToBlockFreeSelection(blockFreeRange))
{
newSelection.ExpandToInclude(ApplyInlineTagToBlockFreeSelection(tagId, attributes, blockFreeRange));
}
}
break;
default:
break;
}
}
// Finally, move our pointer
currentPointer.Right(true);
}
if (newSelection.Positioned)
{
newSelection.Trim();
}
return(newSelection);
}
/// <summary>
/// Advance to next word
/// </summary>
public void Next()
{
currentWordRange.End.MoveToPointer(currentVirtualPosition);
do
{
//advance the start pointer to the beginning of next word
if (!currentWordRange.End.IsEqualTo(selectionRange.Start)) //avoids skipping over the first word
{
//fix bug 1848 - move the start to the end pointer before advancing to the next word
//this ensures that the "next begin" is after the current selection.
currentWordRange.Start.MoveToPointer(currentWordRange.End);
currentWordRange.Start.MoveUnit(_MOVEUNIT_ACTION.MOVEUNIT_PREVWORDBEGIN);
currentWordRange.Start.MoveUnit(_MOVEUNIT_ACTION.MOVEUNIT_NEXTWORDBEGIN);
}
else
{
//Special case for putting the start pointer at the beginning of the
//correct word when the selection may or may not be already adjacent
//to the the beginning of the word.
//Note: theoretically, the selection adjustment in the constructor
//guarantees that we will be flush against the first word, so we could
//probably do nothing, but it works, so we'll keep it.
currentWordRange.Start.MoveUnit(_MOVEUNIT_ACTION.MOVEUNIT_NEXTWORDEND);
currentWordRange.Start.MoveUnit(_MOVEUNIT_ACTION.MOVEUNIT_PREVWORDBEGIN);
}
//advance the end pointer to the end of next word
currentWordRange.End.MoveUnit(_MOVEUNIT_ACTION.MOVEUNIT_NEXTWORDEND);
if (currentWordRange.Start.IsRightOf(currentWordRange.End))
{
//Note: this was a condition that caused several bugs that caused us to stop
//spell-checking correctly, so this logic is here in case we still have edge
//cases that trigger it.
//This should not occur anymore since we fixed several causes of this
//condition by setting the currentWordRange gravity, and detecting case where
//the selection may or may-not start at the beginning of a word.
Debug.Fail("word start jumped past word end");
//if this occurred, it was probably because start was already at the beginning
//of the correct word before it was moved. To resolve this situation, we
//move the start pointer back to the beginning of the word that the end pointer
//is at. Since the End pointer always advances on each iteration, this should not
//cause an infinite loop. The worst case scenario is that we check the same word
//more than once.
currentWordRange.Start.MoveToPointer(currentWordRange.End);
currentWordRange.Start.MoveUnit(_MOVEUNIT_ACTION.MOVEUNIT_PREVWORDBEGIN);
}
} while(MarkupHelpers.GetRangeTextFast(currentWordRange) == null &&
currentWordRange.End.IsLeftOf(selectionRange.End));
currentVirtualPosition.MoveToPointer(currentWordRange.End);
if (currentWordRange.End.IsRightOf(selectionRange.End))
{
//then collapse the range so that CurrentWord returns Empty;
currentWordRange.Start.MoveToPointer(currentWordRange.End);
}
else
{
MarkupRange testRange = currentWordRange.Clone();
testRange.Collapse(false);
testRange.End.MoveUnitBounded(_MOVEUNIT_ACTION.MOVEUNIT_NEXTCHAR, selectionRange.End);
if (MarkupHelpers.GetRangeHtmlFast(testRange) == ".")
{
currentWordRange.End.MoveToPointer(testRange.End);
}
}
}
private void ReplaceDashes(MarkupPointer blockBoundary)
{
if (!AutoreplaceSettings.EnableHyphenReplacement)
{
return;
}
MarkupRange emRange = _currentSelection.Clone();
for (int i = 0; i < 3 && emRange.Start.IsRightOf(blockBoundary); i++)
{
emRange.Start.MoveUnit(_MOVEUNIT_ACTION.MOVEUNIT_PREVWORDBEGIN);
}
string emText = emRange.Text ?? "";
if (emText.Contains("-"))
{
// \u00A0 = non breaking space
Regex regex = new Regex(@"[^\s\u00A0\-]([ \u00A0]?(?>--?)[ \u00A0]?)[^\s\u00A0\-]");
Match match = regex.Match(emText);
if (match.Success)
{
Debug.Assert(match.Groups.Count == 2, "Matched more than one set of dashes. Expecting only one match.");
string matchValue = match.Groups[1].Value.Replace((char)160, ' ');
MarkupRange findRange = _currentSelection.Clone();
// Since we're now doing this matching AFTER a character has been added, we need to jump back.
findRange.End.MoveUnitBounded(_MOVEUNIT_ACTION.MOVEUNIT_PREVCHAR, emRange.Start);
findRange.Collapse(false);
for (int i = 0; i < matchValue.Length; i++)
{
findRange.Start.MoveUnitBounded(_MOVEUNIT_ACTION.MOVEUNIT_PREVCHAR, emRange.Start);
}
for (int i = 0; i < emText.Length; i++)
{
if (findRange.Text == matchValue)
{
string replaceText = null;
switch (matchValue)
{
case ("--"):
case ("-- "):
replaceText = "—";
break;
case (" --"):
case (" -"):
replaceText = " –";
break;
case (" -- "):
case (" - "):
replaceText = " – ";
break;
case ("-"):
case ("- "):
break;
}
if (replaceText != null)
{
_insertHtml(findRange.Start, findRange.End, replaceText);
break;
}
}
findRange.Start.MoveUnitBounded(_MOVEUNIT_ACTION.MOVEUNIT_PREVCHAR, emRange.Start);
findRange.End.MoveUnitBounded(_MOVEUNIT_ACTION.MOVEUNIT_PREVCHAR, emRange.Start);
}
}
}
}