var jsPsychAudioSliderResponse = (function (jspsych) { 'use strict'; const info = { name: "audio-slider-response", parameters: { /** The audio file to be played. */ stimulus: { type: jspsych.ParameterType.AUDIO, pretty_name: "Stimulus", default: undefined, }, /** Sets the minimum value of the slider. */ min: { type: jspsych.ParameterType.INT, pretty_name: "Min slider", default: 0, }, /** Sets the maximum value of the slider */ max: { type: jspsych.ParameterType.INT, pretty_name: "Max slider", default: 100, }, /** Sets the starting value of the slider */ slider_start: { type: jspsych.ParameterType.INT, pretty_name: "Slider starting value", default: 50, }, /** Sets the step of the slider */ step: { type: jspsych.ParameterType.INT, pretty_name: "Step", default: 1, }, /** Array containing the labels for the slider. Labels will be displayed at equidistant locations along the slider. */ labels: { type: jspsych.ParameterType.HTML_STRING, pretty_name: "Labels", default: [], array: true, }, /** Width of the slider in pixels. */ slider_width: { type: jspsych.ParameterType.INT, pretty_name: "Slider width", default: null, }, /** Label of the button to advance. */ button_label: { type: jspsych.ParameterType.STRING, pretty_name: "Button label", default: "Continue", array: false, }, /** If true, the participant will have to move the slider before continuing. */ require_movement: { type: jspsych.ParameterType.BOOL, pretty_name: "Require movement", default: false, }, /** Any content here will be displayed below the slider. */ prompt: { type: jspsych.ParameterType.HTML_STRING, pretty_name: "Prompt", default: null, }, /** How long to show the trial. */ trial_duration: { type: jspsych.ParameterType.INT, pretty_name: "Trial duration", default: null, }, /** If true, trial will end when user makes a response. */ response_ends_trial: { type: jspsych.ParameterType.BOOL, pretty_name: "Response ends trial", default: true, }, /** If true, then the trial will end as soon as the audio file finishes playing. */ trial_ends_after_audio: { type: jspsych.ParameterType.BOOL, pretty_name: "Trial ends after audio", default: false, }, /** If true, then responses are allowed while the audio is playing. If false, then the audio must finish playing before a response is accepted. */ response_allowed_while_playing: { type: jspsych.ParameterType.BOOL, pretty_name: "Response allowed while playing", default: true, }, }, }; /** * **audio-slider-response** * * jsPsych plugin for playing audio and getting a slider response * * @author Josh de Leeuw * @see {@link https://www.jspsych.org/plugins/jspsych-audio-slider-response/ audio-slider-response plugin documentation on jspsych.org} */ class AudioSliderResponsePlugin { constructor(jsPsych) { this.jsPsych = jsPsych; } trial(display_element, trial, on_load) { // hold the .resolve() function from the Promise that ends the trial let trial_complete; // half of the thumb width value from jspsych.css, used to adjust the label positions var half_thumb_width = 7.5; // setup stimulus var context = this.jsPsych.pluginAPI.audioContext(); // record webaudio context start time var startTime; // for storing data related to response var response; // load audio file this.jsPsych.pluginAPI .getAudioBuffer(trial.stimulus) .then((buffer) => { if (context !== null) { this.audio = context.createBufferSource(); this.audio.buffer = buffer; this.audio.connect(context.destination); } else { this.audio = buffer; this.audio.currentTime = 0; } setupTrial(); }) .catch((err) => { console.error(`Failed to load audio file "${trial.stimulus}". Try checking the file path. We recommend using the preload plugin to load audio files.`); console.error(err); }); const setupTrial = () => { // set up end event if trial needs it if (trial.trial_ends_after_audio) { this.audio.addEventListener("ended", end_trial); } // enable slider after audio ends if necessary if (!trial.response_allowed_while_playing && !trial.trial_ends_after_audio) { this.audio.addEventListener("ended", enable_slider); } var html = '
'; html += '
'; html += '' + trial.labels[j] + ""; html += "
"; } html += "
"; html += ""; html += ""; if (trial.prompt !== null) { html += trial.prompt; } // add submit button var next_disabled_attribute = ""; if (trial.require_movement || !trial.response_allowed_while_playing) { next_disabled_attribute = "disabled"; } html += '"; display_element.innerHTML = html; response = { rt: null, response: null, }; if (!trial.response_allowed_while_playing) { display_element.querySelector("#jspsych-audio-slider-response-response").disabled = true; display_element.querySelector("#jspsych-audio-slider-response-next").disabled = true; } if (trial.require_movement) { const enable_button = () => { display_element.querySelector("#jspsych-audio-slider-response-next").disabled = false; }; display_element .querySelector("#jspsych-audio-slider-response-response") .addEventListener("mousedown", enable_button); display_element .querySelector("#jspsych-audio-slider-response-response") .addEventListener("touchstart", enable_button); display_element .querySelector("#jspsych-audio-slider-response-response") .addEventListener("change", enable_button); } display_element .querySelector("#jspsych-audio-slider-response-next") .addEventListener("click", () => { // measure response time var endTime = performance.now(); var rt = Math.round(endTime - startTime); if (context !== null) { endTime = context.currentTime; rt = Math.round((endTime - startTime) * 1000); } response.rt = rt; response.response = display_element.querySelector("#jspsych-audio-slider-response-response").valueAsNumber; if (trial.response_ends_trial) { end_trial(); } else { display_element.querySelector("#jspsych-audio-slider-response-next").disabled = true; } }); startTime = performance.now(); // start audio if (context !== null) { startTime = context.currentTime; this.audio.start(startTime); } else { this.audio.play(); } // end trial if trial_duration is set if (trial.trial_duration !== null) { this.jsPsych.pluginAPI.setTimeout(() => { end_trial(); }, trial.trial_duration); } on_load(); }; // function to enable slider after audio ends function enable_slider() { document.querySelector("#jspsych-audio-slider-response-response").disabled = false; if (!trial.require_movement) { document.querySelector("#jspsych-audio-slider-response-next").disabled = false; } } const end_trial = () => { // kill any remaining setTimeout handlers this.jsPsych.pluginAPI.clearAllTimeouts(); // stop the audio file if it is playing // remove end event listeners if they exist if (context !== null) { this.audio.stop(); } else { this.audio.pause(); } this.audio.removeEventListener("ended", end_trial); this.audio.removeEventListener("ended", enable_slider); // save data var trialdata = { rt: response.rt, stimulus: trial.stimulus, slider_start: trial.slider_start, response: response.response, }; display_element.innerHTML = ""; // next trial this.jsPsych.finishTrial(trialdata); trial_complete(); }; return new Promise((resolve) => { trial_complete = resolve; }); } simulate(trial, simulation_mode, simulation_options, load_callback) { if (simulation_mode == "data-only") { load_callback(); this.simulate_data_only(trial, simulation_options); } if (simulation_mode == "visual") { this.simulate_visual(trial, simulation_options, load_callback); } } create_simulation_data(trial, simulation_options) { const default_data = { stimulus: trial.stimulus, slider_start: trial.slider_start, response: this.jsPsych.randomization.randomInt(trial.min, trial.max), rt: this.jsPsych.randomization.sampleExGaussian(500, 50, 1 / 150, true), }; const data = this.jsPsych.pluginAPI.mergeSimulationData(default_data, simulation_options); this.jsPsych.pluginAPI.ensureSimulationDataConsistency(trial, data); return data; } simulate_data_only(trial, simulation_options) { const data = this.create_simulation_data(trial, simulation_options); this.jsPsych.finishTrial(data); } simulate_visual(trial, simulation_options, load_callback) { const data = this.create_simulation_data(trial, simulation_options); const display_element = this.jsPsych.getDisplayElement(); const respond = () => { if (data.rt !== null) { const el = display_element.querySelector("input[type='range']"); setTimeout(() => { this.jsPsych.pluginAPI.clickTarget(el); el.valueAsNumber = data.response; }, data.rt / 2); this.jsPsych.pluginAPI.clickTarget(display_element.querySelector("button"), data.rt); } }; this.trial(display_element, trial, () => { load_callback(); if (!trial.response_allowed_while_playing) { this.audio.addEventListener("ended", respond); } else { respond(); } }); } } AudioSliderResponsePlugin.info = info; return AudioSliderResponsePlugin; })(jsPsychModule);