public static bool ParseDomEventTargetAsGeckoElement(DomEventTarget domEventTarget, out GeckoElement geckoElement)
{
geckoElement = null;
if (domEventTarget == null)
{
return(false);
}
geckoElement = domEventTarget.CastToGeckoElement();
return(geckoElement != null);
}
private bool DetermineSplitLocation(DomEventTarget target)
{
var selection = m_blocksDisplayBrowser.Window.Selection;
var newOffset = selection.AnchorOffset;
if (!m_blocksDisplayBrowser.Visible || target == null)
{
return(false);
}
var geckoElement = target.CastToGeckoElement();
var targetElement = geckoElement as GeckoDivElement;
if (targetElement == null)
{
var geckoHtmlElement = geckoElement as GeckoHtmlElement;
if (geckoHtmlElement != null)
{
targetElement = geckoHtmlElement.Parent as GeckoDivElement;
if (targetElement == null)
{
return(false);
}
if (geckoElement.TagName == "SUP")
{
if (newOffset != 0)
{
return(false);
}
if (!targetElement.InnerHtml.StartsWith(geckoHtmlElement.OuterHtml))
{
return(DetermineSplitLocationAtStartOfVerse(targetElement, geckoHtmlElement.InnerHtml));
}
}
else
{
newOffset = 0;
}
}
else
{
return(false);
}
}
int blockIndex;
if (targetElement.ClassName == "block")
{
blockIndex = int.Parse(targetElement.Id);
if (newOffset > 0)
{
// For simplicity, make it so a split at the end of a block is really a split at the start of the following block.
if (++blockIndex == m_originalBlocks.Count)
{
return(false); // Can't split at very end of last verse in last block
}
newOffset = 0;
}
else if (blockIndex == 0)
{
return(false); // Can't split at start of first block.
}
VerseToSplit = null; // We're actually splitting between blocks of a multi-block quote
}
else if (targetElement.ClassName == "scripttext")
{
if (newOffset == 0)
{
var indexInBlock = targetElement.ParentElement.ChildNodes.IndexOf(targetElement);
if (indexInBlock > 0)
{
return(false);
}
blockIndex = int.Parse(targetElement.Parent.Id);
if (blockIndex == 0)
{
return(false); // Can't split at start of first block.
}
VerseToSplit = null;
}
else
{
blockIndex = int.Parse(targetElement.Parent.Id);
if (blockIndex == m_originalBlocks.Count - 1 && newOffset == selection.AnchorNode.NodeValue.Length)
{
return(false); // Can't split at very end of last verse in last block
}
VerseToSplit = targetElement.Id;
var childNodes = selection.AnchorNode.ParentNode.ChildNodes;
if (childNodes.Length == 3 && selection.AnchorNode.Equals(childNodes[2]))
{
newOffset += childNodes[0].NodeValue.Length;
}
}
}
else
{
return(false);
}
BlockToSplit = m_originalBlocks[blockIndex];
CharacterOffsetToSplit = newOffset;
return(true);
}
