__ __ __ __ _____ _ _ _____ _ _ _
| \/ | \ \ / / | __ \ (_) | | / ____| | | | |
| \ / |_ __\ V / | |__) | __ ___ ____ _| |_ ___ | (___ | |__ ___| | |
| |\/| | '__|> < | ___/ '__| \ \ / / _` | __/ _ \ \___ \| '_ \ / _ \ | |
| | | | |_ / . \ | | | | | |\ V / (_| | || __/ ____) | | | | __/ | |
|_| |_|_(_)_/ \_\ |_| |_| |_| \_/ \__,_|\__\___| |_____/|_| |_|\___V 2.1
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var H5P = H5P || {};
H5P.JoubelProgressbar = (function ($) {
/**
* Joubel progressbar class
* @method JoubelProgressbar
* @constructor
* @param {number} steps Number of steps
* @param {Object} [options] Additional options
* @param {boolean} [options.disableAria] Disable readspeaker assistance
* @param {string} [options.progressText] A progress text for describing
* current progress out of total progress for readspeakers.
* e.g. "Slide :num of :total"
*/
function JoubelProgressbar(steps, options) {
H5P.EventDispatcher.call(this);
var self = this;
this.options = $.extend({
progressText: 'Slide :num of :total'
}, options);
this.currentStep = 0;
this.steps = steps;
this.$progressbar = $('<div>', {
'class': 'h5p-joubelui-progressbar'
});
this.$background = $('<div>', {
'class': 'h5p-joubelui-progressbar-background'
}).appendTo(this.$progressbar);
}
JoubelProgressbar.prototype = Object.create(H5P.EventDispatcher.prototype);
JoubelProgressbar.prototype.constructor = JoubelProgressbar;
JoubelProgressbar.prototype.updateAria = function () {
var self = this;
if (this.options.disableAria) {
return;
}
if (!this.$currentStatus) {
this.$currentStatus = $('<div>', {
'class': 'h5p-joubelui-progressbar-slide-status-text',
'aria-live': 'assertive'
}).appendTo(this.$progressbar);
}
var interpolatedProgressText = self.options.progressText
.replace(':num', self.currentStep)
.replace(':total', self.steps);
this.$currentStatus.html(interpolatedProgressText);
};
/**
* Appends to a container
* @method appendTo
* @param {H5P.jquery} $container
*/
JoubelProgressbar.prototype.appendTo = function ($container) {
this.$progressbar.appendTo($container);
};
/**
* Update progress
* @method setProgress
* @param {number} step
*/
JoubelProgressbar.prototype.setProgress = function (step) {
// Check for valid value:
if (step > this.steps || step < 0) {
return;
}
this.currentStep = step;
this.$background.css({
width: ((this.currentStep/this.steps)*100) + '%'
});
this.updateAria();
};
/**
* Increment progress with 1
* @method next
*/
JoubelProgressbar.prototype.next = function () {
this.setProgress(this.currentStep+1);
};
/**
* Reset progressbar
* @method reset
*/
JoubelProgressbar.prototype.reset = function () {
this.setProgress(0);
};
/**
* Check if last step is reached
* @method isLastStep
* @return {Boolean}
*/
JoubelProgressbar.prototype.isLastStep = function () {
return this.steps === this.currentStep;
};
return JoubelProgressbar;
})(H5P.jQuery);