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Merge pull request #2423 from ether/fix/reimplement-ace-getAttributeOnSelection 

Re-implement ace_getAttributeOnSelection
pull/2509/merge
John McLear 2015-03-31 23:21:49 +01:00
parent 8c795b4e8a c0078abc75
commit 70fdc7dcd7
1 changed files with 44 additions and 65 deletions
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107
src/static/js/ace2_inner.js
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@ -2322,93 +2322,72 @@ function Ace2Inner(){
} }
editorInfo.ace_setAttributeOnSelection = setAttributeOnSelection; editorInfo.ace_setAttributeOnSelection = setAttributeOnSelection;
function getAttributeOnSelection(attributeName){ function getAttributeOnSelection(attributeName){
if (!(rep.selStart && rep.selEnd)) return; if (!(rep.selStart && rep.selEnd)) return
// get the previous/next characters formatting when we have nothing selected
// To fix this we just change the focus area, we don't actually check anything yet.
if(rep.selStart[1] == rep.selEnd[1]){
// if we're at the beginning of a line bump end forward so we get the right attribute
if(rep.selStart[1] == 0 && rep.selEnd[1] == 0){
rep.selEnd[1] = 1;
}
if(rep.selStart[1] < 0){
rep.selStart[1] = 0;
}
var line = rep.lines.atIndex(rep.selStart[0]);
// if we're at the end of the line bmp the start back 1 so we get hte attribute
if(rep.selEnd[1] == line.text.length){
rep.selStart[1] = rep.selStart[1] -1;
}
}
// Do the detection
var selectionAllHasIt = true;
var withIt = Changeset.makeAttribsString('+', [ var withIt = Changeset.makeAttribsString('+', [
[attributeName, 'true'] [attributeName, 'true']
], rep.apool); ], rep.apool);
var withItRegex = new RegExp(withIt.replace(/\*/g, '\\*') + "(\\*|$)"); var withItRegex = new RegExp(withIt.replace(/\*/g, '\\*') + "(\\*|$)");
function hasIt(attribs) function hasIt(attribs)
{ {
return withItRegex.test(attribs); return withItRegex.test(attribs);
} }
var selStartLine = rep.selStart[0]; return rangeHasAttrib(rep.selStart, rep.selEnd)
var selEndLine = rep.selEnd[0];
for (var n = selStartLine; n <= selEndLine; n++) function rangeHasAttrib(selStart, selEnd) {
{ // if range is collapsed -> no attribs in range
var opIter = Changeset.opIterator(rep.alines[n]); if(selStart[1] == selEnd[1] && selStart[0] == selEnd[0]) return false
var indexIntoLine = 0;
var selectionStartInLine = 0; if(selStart[0] != selEnd[0]) { // -> More than one line selected
var selectionEndInLine = rep.lines.atIndex(n).text.length; // exclude newline var hasAttrib = true
if(rep.lines.atIndex(n).text.length == 0){
return false; // If the line length is 0 we basically treat it as having no formatting // from selStart to the end of the first line
hasAttrib = hasAttrib && rangeHasAttrib(selStart, [selStart[0], rep.lines.atIndex(selStart[0]).text.length])
// for all lines in between
for(var n=selStart[0]+1; n < selEnd[0]; n++) {
hasAttrib = hasAttrib && rangeHasAttrib([n, 0], [n, rep.lines.atIndex(n).text.length])
}
// for the last, potentially partial, line
hasAttrib = hasAttrib && rangeHasAttrib([selEnd[0], 0], [selEnd[0], selEnd[1]])
return hasAttrib
} }
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 // Logic tells us we now have a range on a single line
}
if(rep.selStart[1] == 0 && rep.selEnd[1] == 0){ var lineNum = selStart[0]
rep.selEnd[1] == 1; , start = selStart[1]
} , end = selEnd[1]
if(rep.selEnd[1] == -1){ , hasAttrib = true
rep.selEnd[1] = 1; // sometimes rep.selEnd is -1, not sure why.. When it is we should look at the first char
} // Iterate over attribs on this line
if (n == selStartLine)
{ var opIter = Changeset.opIterator(rep.alines[lineNum])
selectionStartInLine = rep.selStart[1]; , indexIntoLine = 0
}
if (n == selEndLine) while (opIter.hasNext()) {
{
selectionEndInLine = rep.selEnd[1];
}
while (opIter.hasNext())
{
var op = opIter.next(); var op = opIter.next();
var opStartInLine = indexIntoLine; var opStartInLine = indexIntoLine;
var opEndInLine = opStartInLine + op.chars; var opEndInLine = opStartInLine + op.chars;
if (!hasIt(op.attribs)) if (!hasIt(op.attribs)) {
{
// does op overlap selection? // does op overlap selection?
if (!(opEndInLine <= selectionStartInLine || opStartInLine >= selectionEndInLine)) if (!(opEndInLine <= start || opStartInLine >= end)) {
{ hasAttrib = false; // since it's overlapping but hasn't got the attrib -> range hasn't got it
selectionAllHasIt = false;
break; break;
} }
} }
indexIntoLine = opEndInLine; indexIntoLine = opEndInLine;
} }
if (!selectionAllHasIt)
{ return hasAttrib
break;
}
}
if(selectionAllHasIt){
return true;
}else{
return false;
} }
} }
editorInfo.ace_getAttributeOnSelection = getAttributeOnSelection; editorInfo.ace_getAttributeOnSelection = getAttributeOnSelection;
function toggleAttributeOnSelection(attributeName) function toggleAttributeOnSelection(attributeName)