59 lines
2.5 KiB
JavaScript
59 lines
2.5 KiB
JavaScript
/**
|
|
* 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.
|
|
*/
|
|
|
|
"use strict";
|
|
function waitFor(testFx, onReady, timeOutMillis) {
|
|
var maxtimeOutMillis = timeOutMillis ? timeOutMillis : 3000, //< 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
|
|
}
|
|
}
|
|
}, 250); //< repeat check every 250ms
|
|
};
|
|
|
|
|
|
var page = require('webpage').create();
|
|
|
|
// Open Twitter on 'sencha' profile and, onPageLoad, do...
|
|
page.open("http://twitter.com/#!/sencha", function (status) {
|
|
// Check for page load success
|
|
if (status !== "success") {
|
|
console.log("Unable to access network");
|
|
} else {
|
|
// Wait for 'signin-dropdown' to be visible
|
|
waitFor(function() {
|
|
// Check in the page if a specific element is now visible
|
|
return page.evaluate(function() {
|
|
return $("#signin-dropdown").is(":visible");
|
|
});
|
|
}, function() {
|
|
console.log("The sign-in dialog should be visible now.");
|
|
phantom.exit();
|
|
});
|
|
}
|
|
});
|