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Merge pull request #2013 from ether/getAttributeOnSelection

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getAttributeOnSelection function
This commit is contained in:
John McLear 2013-12-09 09:46:57 -08:00
commit 505dc70df5
3 changed files with 85 additions and 0 deletions
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67
src/static/js/ace2_inner.js
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@ -2372,6 +2372,73 @@ function Ace2Inner(){
}
editorInfo.ace_setAttributeOnSelection = setAttributeOnSelection;
function getAttributeOnSelection(attributeName){
if (!(rep.selStart && rep.selEnd)) return;
var selectionAllHasIt = true;
var withIt = Changeset.makeAttribsString('+', [
[attributeName, 'true']
], rep.apool);
var withItRegex = new RegExp(withIt.replace(/\*/g, '\\*') + "(\\*|$)");
function hasIt(attribs)
{
return withItRegex.test(attribs);
}
var selStartLine = rep.selStart[0];
var selEndLine = rep.selEnd[0];
for (var n = selStartLine; n <= selEndLine; n++)
{
var opIter = Changeset.opIterator(rep.alines[n]);
var indexIntoLine = 0;
var selectionStartInLine = 0;
var selectionEndInLine = rep.lines.atIndex(n).text.length; // exclude newline
if(rep.lines.atIndex(n).text.length == 0){
return false; // If the line length is 0 we basically treat it as having no formatting
}
if(rep.selStart[1] == rep.selEnd[1] && rep.selStart[1] == rep.lines.atIndex(n).text.length){
return false; // If we're at the end of a line we treat it as having no formatting
}
if(rep.selStart[1] == 0 && rep.selEnd[1] == 0){
return false; // If we're at the start of a line attributes get confused..
}
if (n == selStartLine)
{
selectionStartInLine = rep.selStart[1];
}
if (n == selEndLine)
{
selectionEndInLine = rep.selEnd[1];
}
while (opIter.hasNext())
{
var op = opIter.next();
var opStartInLine = indexIntoLine;
var opEndInLine = opStartInLine + op.chars;
if (!hasIt(op.attribs))
{
// does op overlap selection?
if (!(opEndInLine <= selectionStartInLine || opStartInLine >= selectionEndInLine))
{
selectionAllHasIt = false;
break;
}
}
indexIntoLine = opEndInLine;
}
if (!selectionAllHasIt)
{
break;
}
}
if(selectionAllHasIt){
return true;
}else{
return false;
}
}
editorInfo.ace_getAttributeOnSelection = getAttributeOnSelection;
function toggleAttributeOnSelection(attributeName)
{
if (!(rep.selStart && rep.selEnd)) return;