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Mark Trostler
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Nov 9, 2011
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| @@ -0,0 +1,53 @@ | ||
| /** | ||
| * Wait until the test condition is true or a timeout occurs. Useful for waiting | ||
| * on a server response or for a ui change (fadeIn, etc.) to occur. | ||
| * | ||
| * @param testFx javascript condition that evaluates to a boolean, | ||
| * it can be passed in as a string (e.g.: "1 == 1" or "$('#bar').is(':visible')" or | ||
| * as a callback function. | ||
| * @param onReady what to do when testFx condition is fulfilled, | ||
| * it can be passed in as a string (e.g.: "1 == 1" or "$('#bar').is(':visible')" or | ||
| * as a callback function. | ||
| * @param timeOutMillis the max amount of time to wait. If not specified, 3 sec is used. | ||
| */ | ||
| function waitFor(testFx, onReady, timeOutMillis) { | ||
| var maxtimeOutMillis = timeOutMillis ? timeOutMillis : 3000000, //< Default Max Timout is 3s | ||
| start = new Date().getTime(), | ||
| condition = false, | ||
| interval = setInterval(function() { | ||
| if ( (new Date().getTime() - start < maxtimeOutMillis) && !condition ) { | ||
| // If not time-out yet and condition not yet fulfilled | ||
| condition = (typeof(testFx) === "string" ? eval(testFx) : testFx()); //< defensive code | ||
| } else { | ||
| if(!condition) { | ||
| // If condition still not fulfilled (timeout but condition is 'false') | ||
| console.log("'waitFor()' timeout"); | ||
| phantom.exit(1); | ||
| } else { | ||
| // Condition fulfilled (timeout and/or condition is 'true') | ||
| console.log("'waitFor()' finished in " + (new Date().getTime() - start) + "ms."); | ||
| typeof(onReady) === "string" ? eval(onReady) : onReady(); //< Do what it's supposed to do once the condition is fulfilled | ||
| clearInterval(interval); //< Stop this interval | ||
| } | ||
| } | ||
| }, 1000); //< repeat check every 1000ms | ||
| }; | ||
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| var page = new WebPage(); | ||
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| page.onAlert = function(msg) { console.log("ALERT: " + msg); }; | ||
| page.onConsoleMessage = function (msg) { console.log("CONSOLE: " + msg); }; | ||
| #page.onResourceRequested = function (msg) { console.log("Request: " + msg.url); }; | ||
| #page.onResourceReceived = function (msg) { console.log("Received: " + msg.url); }; | ||
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| // Open Twitter on 'sencha' profile and, onPageLoad, do... | ||
| page.open(phantom.args[0], function (status) { | ||
| // Check for page load success | ||
| if (status !== "success") { | ||
| console.log("Unable to access network"); | ||
| } else { | ||
| waitFor(function(){}, function(){}); | ||
| } | ||
| }); | ||
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