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Change 'finite' param to 'maxTime' in delayGenerator

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Allows delaying up to a specified amount of time before yielding false
This commit is contained in:
Dan Stillman 2015-05-12 19:57:57 -04:00
parent 27899c85b5
commit 1578675ace
1 changed files with 14 additions and 7 deletions
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21
chrome/content/zotero/xpcom/utilities_internal.js
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@ -436,23 +436,30 @@ Zotero.Utilities.Internal = {
/** /**
* A generator that yields promises that delay for the given intervals * A generator that yields promises that delay for the given intervals
* *
* @param {Array<Integer>} intervals An array of intervals in milliseconds * @param {Array<Integer>} intervals - An array of intervals in milliseconds
* @param {Boolean} [finite=FALSE] If TRUE, repeat the last interval forever * @param {Integer} [maxTime] - Total time to wait in milliseconds, after which the delaying
* promise will return false. Before maxTime has elapsed, or if
* maxTime isn't specified, the promises will yield true.
*/ */
"delayGenerator": function (intervals, finite) { "delayGenerator": function (intervals, maxTime) {
var totalTime = 0;
var lastInterval = intervals[intervals.length - 1]; var lastInterval = intervals[intervals.length - 1];
while (true) { while (true) {
let interval = intervals.shift(); let interval = intervals.shift();
if (interval) { if (interval) {
lastInterval = interval; delay = lastInterval = interval;
yield Zotero.Promise.delay(interval);
} }
else if (finite) { else if (infinite) {
yield Zotero.Promise.delay(lastInterval); delay = lastInterval;
} }
else { else {
break; break;
} }
totalTime += delay;
Zotero.debug("Delaying " + delay + " ms");
yield Zotero.Promise.delay(delay).return(!maxTime || totalTime <= maxTime);
} }
}, },