click.js

/**
 * @file trigger click on an element and capture the url
 * @author wangyang02
 *
 * @example
 * phantomjs click.js https://www.baidu.com/ 'a[name=tj_trnews]'
 * phantomjs click.js https://www.baidu.com/ '#su'
 */

/* eslint-disable */

var TIMEOUT = 60 * 1000;
 
var webPage = require('webpage');
var system = require('system');
 
var page = webPage.create();
page.settings.loadImages = false;
 
var args = system.args;
if (args.length < 3) {
    console.log('usage: phantomjs click.js url elementSelector');
    phantom.exit(1);
}
var url = args[1];
var elementSelector = args[2];

var isResourceLogEnabled = false;
 
var triggerClick = function(status) {
    isResourceLogEnabled = true;

    var ret = page.evaluate(function(elementSelector) {
        var element = document.querySelector(elementSelector);
        if (!element) {
            console.error('element not found');
            return 3;
        }
        if (typeof element.click == 'function') {
            element.click();
            return 0;
        }
    }, elementSelector);

    if (ret != 0) {
        phantom.exit(ret);
    }
};

page.onResourceRequested = function(e) {
    if (isResourceLogEnabled) {
        console.log(e.url);
        phantom.exit(0);
    }
};

page.open(url, triggerClick);

setTimeout(function() {
    console.error('timeout');
    phantom.exit(2);
}, TIMEOUT);