--- /dev/null
+// A number of additional default bindings that are too obscure to
+// include in the core codemirror.js file.
+
+(function() {
+ "use strict";
+
+ var Pos = CodeMirror.Pos;
+
+ function moveLines(cm, start, end, dist) {
+ if (!dist || start > end) return 0;
+
+ var from = cm.clipPos(Pos(start, 0)), to = cm.clipPos(Pos(end));
+ var text = cm.getRange(from, to);
+
+ if (start <= cm.firstLine())
+ cm.replaceRange("", from, Pos(to.line + 1, 0));
+ else
+ cm.replaceRange("", Pos(from.line - 1), to);
+ var target = from.line + dist;
+ if (target <= cm.firstLine()) {
+ cm.replaceRange(text + "\n", Pos(target, 0));
+ return cm.firstLine() - from.line;
+ } else {
+ var targetPos = cm.clipPos(Pos(target - 1));
+ cm.replaceRange("\n" + text, targetPos);
+ return targetPos.line + 1 - from.line;
+ }
+ }
+
+ function moveSelectedLines(cm, dist) {
+ var head = cm.getCursor("head"), anchor = cm.getCursor("anchor");
+ cm.operation(function() {
+ var moved = moveLines(cm, Math.min(head.line, anchor.line), Math.max(head.line, anchor.line), dist);
+ cm.setSelection(Pos(anchor.line + moved, anchor.ch), Pos(head.line + moved, head.ch));
+ });
+ }
+
+ CodeMirror.commands.moveLinesUp = function(cm) { moveSelectedLines(cm, -1); };
+ CodeMirror.commands.moveLinesDown = function(cm) { moveSelectedLines(cm, 1); };
+
+ CodeMirror.keyMap["default"]["Alt-Up"] = "moveLinesUp";
+ CodeMirror.keyMap["default"]["Alt-Down"] = "moveLinesDown";
+})();