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support moving lines up/down (alt-up/down)

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This commit is contained in:
Fabian Jakobs 2010-04-14 17:51:28 +02:00
commit 34d851b24e
5 changed files with 191 additions and 36 deletions
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26
src/TextDocument.js
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@ -301,4 +301,30 @@ ace.TextDocument.prototype.outdentRows = function(range, indentString) {
this.fireChangeEvent(range.start.row, range.end.row);
return -outdentLength;
};
ace.TextDocument.prototype.moveLinesUp = function(firstRow, lastRow) {
if (firstRow <= 0) return 0;
var removed = this.lines.splice(firstRow, lastRow-firstRow+1);
var args = [firstRow - 1, 0];
args.push.apply(args, removed);
this.lines.splice.apply(this.lines, args);
this.fireChangeEvent(firstRow-1, lastRow);
return -1;
};
ace.TextDocument.prototype.moveLinesDown = function(firstRow, lastRow) {
if (lastRow >= this.lines.length-1) return 0;
var removed = this.lines.splice(firstRow, lastRow-firstRow+1);
var args = [firstRow + 1, 0];
args.push.apply(args, removed);
this.lines.splice.apply(this.lines, args);
this.fireChangeEvent(firstRow, lastRow+1);
return 1;
};