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// Copyright (c) 2020, Compiler Explorer Authors
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
"use strict";
var
local = require('./local');
var _currentPresentation = null;
function Presentation() {
this.maxSlides = 0;
this.currentSlide = 0;
this.originallocation = window.location.href;
}
Presentation.prototype.init = function (maxSlides, callback) {
this.maxSlides = maxSlides;
this.currentSlide = parseInt(local.get('presentationCurrentSlide', 0));
if (callback !== undefined) callback();
};
Presentation.prototype.first = function () {
this.currentSlide = 0;
local.set('presentationCurrentSlide', this.currentSlide);
this.show();
};
Presentation.prototype.next = function () {
if (this.currentSlide + 1 < this.maxSlides) {
this.currentSlide++;
local.set('presentationCurrentSlide', this.currentSlide);
this.show();
}
};
Presentation.prototype.prev = function () {
if (this.currentSlide > 0) {
this.currentSlide--;
local.set('presentationCurrentSlide', this.currentSlide);
this.show();
}
};
Presentation.prototype.show = function () {
window.hasUIBeenReset = true;
if (window.location.href === this.originallocation) {
window.location.reload();
} else {
window.location.href = this.originallocation;
}
};
function init(maxSlides, callback) {
if (!_currentPresentation) {
_currentPresentation = new Presentation();
_currentPresentation.init(maxSlides, callback);
} else {
callback();
}
}
function first() {
if (!_currentPresentation) throw "Presentation hasn't been initialized";
_currentPresentation.first();
}
function next() {
if (!_currentPresentation) throw "Presentation hasn't been initialized";
_currentPresentation.next();
}
function prev() {
if (!_currentPresentation) throw "Presentation hasn't been initialized";
_currentPresentation.prev();
}
function getCurrentSlide() {
if (!_currentPresentation) throw "Presentation hasn't been initialized";
return _currentPresentation.currentSlide;
}
function setCurrentSlide(idx) {
if (!_currentPresentation) throw "Presentation hasn't been initialized";
_currentPresentation.currentSlide = idx;
}
module.exports = {
init: init,
first: first,
next: next,
prev: prev,
getCurrentSlide: getCurrentSlide,
setCurrentSlide: setCurrentSlide
};