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- ./phantomjs "--load-images=true" ./waitfor.js >>./t.txt &
- /**
- * 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 : 5000, //< 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
- };
- function click(sel){var event=document.createEvent('MouseEvents');event.initMouseEvent('click',1,1,window,1,0,0,0,0,0,0,0,0,0,null);document.querySelector(sel).dispatchEvent(event);}
- var page = require('webpage').create();
- var file_name="image", i=0;
- // Open Twitter on 'sencha' profile and, onPageLoad, do...
- page.open("https://twitter.com/sencha", function (status) {
- // Check for page load success
- if (status !== "success") {
- console.log("Unable to access network");
- } else {
- page.evaluate(function(click) {click('a[id="signin-link"]');},click)//,click will be available
- // 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 $("div#signin-dropdown").is(":visible");
- });
- }, function() {
- console.log("The sign-in dialog should be visible now.");
- phantom.exit();
- });
- }
- page.render('/home/root2/pjs/total__'+file_name+'_snap_'+i+'.png');
- });
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