Sha256: 9c0876b72ce5cba8240ddb11f18e342845d19fcbc742ad711bc83d1ba66d9958
Contents?: true
Size: 1.46 KB
Versions: 4
Compression:
Stored size: 1.46 KB
Contents
// Because sometimes you need to style the cursor's line.
//
// Adds an option 'styleActiveLine' which, when enabled, gives the
// active line's wrapping <div> the CSS class "CodeMirror-activeline",
// and gives its background <div> the class "CodeMirror-activeline-background".
(function() {
"use strict";
var WRAP_CLASS = "CodeMirror-activeline";
var BACK_CLASS = "CodeMirror-activeline-background";
CodeMirror.defineOption("styleActiveLine", false, function(cm, val, old) {
var prev = old && old != CodeMirror.Init;
if (val && !prev) {
updateActiveLine(cm, cm.getCursor().line);
cm.on("beforeSelectionChange", selectionChange);
} else if (!val && prev) {
cm.off("beforeSelectionChange", selectionChange);
clearActiveLine(cm);
delete cm.state.activeLine;
}
});
function clearActiveLine(cm) {
if ("activeLine" in cm.state) {
cm.removeLineClass(cm.state.activeLine, "wrap", WRAP_CLASS);
cm.removeLineClass(cm.state.activeLine, "background", BACK_CLASS);
}
}
function updateActiveLine(cm, selectedLine) {
var line = cm.getLineHandleVisualStart(selectedLine);
if (cm.state.activeLine == line) return;
cm.operation(function() {
clearActiveLine(cm);
cm.addLineClass(line, "wrap", WRAP_CLASS);
cm.addLineClass(line, "background", BACK_CLASS);
cm.state.activeLine = line;
});
}
function selectionChange(cm, sel) {
updateActiveLine(cm, sel.head.line);
}
})();
Version data entries
4 entries across 4 versions & 1 rubygems