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53 lines
1.7 KiB
JavaScript
53 lines
1.7 KiB
JavaScript
/** (July 2012, Erik Weitnauer)
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The html-plugin will load and display an arbitrary number of html pages. To proceed to the next, the
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user might either press a button on the page or a specific key. Afterwards, the page get hidden and
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the plugin will wait of a specified time before it proceeds.
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documentation: docs.jspsych.org
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*/
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jsPsych.plugins.html = (function() {
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var plugin = {};
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plugin.trial = function(display_element, trial) {
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// default parameters
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trial.check_fn = trial.check_fn || function() { return true; }
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trial.force_refresh = (typeof trial.force_refresh === 'undefined') ? false : trial.force_refresh
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// if any trial variables are functions
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// this evaluates the function and replaces
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// it with the output of the function
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trial = jsPsych.pluginAPI.evaluateFunctionParameters(trial, ["check_fn"]);
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var url = trial.url;
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if (trial.force_refresh) {
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url = trial.url + "?time=" + (new Date().getTime());
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}
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display_element.load(trial.url, function() {
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var t0 = (new Date()).getTime();
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var finish = function() {
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if (trial.check_fn && !trial.check_fn(display_element)) return;
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if (trial.cont_key) $(document).unbind('keydown', key_listener);
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var trial_data = {
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rt: (new Date()).getTime() - t0,
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url: trial.url
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};
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display_element.empty();
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jsPsych.finishTrial(trial_data);
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};
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if (trial.cont_btn) $('#' + trial.cont_btn).click(finish);
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if (trial.cont_key) {
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var key_listener = function(e) {
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if (e.which == trial.cont_key) finish();
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};
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$(document).keydown(key_listener);
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}
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});
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};
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return plugin;
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})();
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