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/*
* This file is part of "What's The Point" <https://github.com/Pacien/WhatsThePoint>
* Copyright (C) 2014 Pacien TRAN-GIRARD
*
* "What's The Point" is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* "What's The Point" is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
define(["control/control"], function (control) {
var slide = {
init: function () {
this.slideCount = document.getElementsByTagName("p-slide").length;
this.start();
this.bindEvent();
},
start: function () {
var slideIndex = location.hash.substr(1);
location.hash = 0;
location.hash = 1;
this.setCurrentSlide(slideIndex);
},
setCurrentSlide: function (slideIndex) {
if (isNaN(slideIndex) || slideIndex < 1 || slideIndex > this.slideCount) {
return false;
}
location.hash = slideIndex;
return true;
},
getCurrentSlideIndex: function () {
var hash = location.hash.substring(1);
return isNaN(hash) || hash < 1 || hash > this.slideCount ? 0 : Number(hash);
},
shift: function (delta) {
return this.getCurrentSlideIndex() + delta;
},
getIndex: function (target) {
switch (target) {
case control.GOTO.PREVIOUS_SLIDE:
return this.shift(-1);
case control.GOTO.NEXT_SLIDE:
return this.shift(+1);
case control.GOTO.FIRST_SLIDE:
return 1;
case control.GOTO.LAST_SLIDE:
return this.slideCount;
}
},
translate: function (target) {
control.dispatchEvent(control.EVENT.SLIDE, this.getIndex(target));
},
bindEvent: function () {
control.bindEvent(control.EVENT.GOTO, function (gotoEvent) {
slide.translate(gotoEvent.detail);
});
control.bindEvent(control.EVENT.SLIDE, function (slideEvent) {
slide.setCurrentSlide(slideEvent.detail);
});
},
};
return slide;
});
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