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add support for debouncing leading event #185

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Merged
shama merged 1 commit into from
Mar 23, 2015
+13 −2
Merged

add support for debouncing leading event #185

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15 changes: 13 additions & 2 deletions lib/gaze.js
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Original file line number Diff line number Diff line change
Expand Up @@ -43,6 +43,7 @@ function Gaze(patterns, opts, done) {
opts = opts || {};
opts.mark = true;
opts.interval = opts.interval || 500;
opts.debounceLeading = (opts.debounceLeading == 'true')
opts.debounceDelay = opts.debounceDelay || 500;
opts.cwd = opts.cwd || process.cwd();
this.options = opts;
Expand Down Expand Up @@ -167,15 +168,25 @@ Gaze.prototype.emit = function() {
// If cached doesnt exist, create a delay before running the next
// then emit the event
var cache = this._cached[filepath] || [];
var options = this.options;
var emitEvent = function (args, e) {
Gaze.super_.prototype.emit.apply(self, args);
Gaze.super_.prototype.emit.apply(self, ['all', e].concat([].slice.call(args, 1)));
}

if (cache.indexOf(e) === -1) {
helper.objectPush(self._cached, filepath, e);
clearTimeout(this._timeoutId);
this._timeoutId = setTimeout(function() {
if (options.debounceLeading) {
emitEvent(args, e);
}
delete self._cached[filepath];
}, this.options.debounceDelay);
// Emit the event and `all` event
Gaze.super_.prototype.emit.apply(self, args);
Gaze.super_.prototype.emit.apply(self, ['all', e].concat([].slice.call(args, 1)));
if (!this.options.debounceLeading) {
emitEvent(args, e);
}
}

// Detect if new folder added to trigger for matching files within folder
Expand Down