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CollectionViewController.js
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CollectionViewController.js
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/**
* CollectionViewController Class File
*
* @author rdeluca
* @version $Id$
* @requires require.js
* @requires jQuery
*/
define(function(require) {
'use strict';
var Controller = require('framework/controllers/Controller');
var viewRenderer = require('framework/ViewRenderer');
var Util = require('framework/Util');
var jQuery = require('jquery');
var NCarousel = require('libs/NCarousel/NCarousel');
var CollectionsDataFeed = require('app/libs/CollectionsDataFeed');
var collectionTemplate = require('text!app/views/collection.html');
var collectionVideoDrawerTemplate = require('text!app/views/collection-video-drawer.html');
var collectionPaginationTemplate = require('text!app/views/collection-pagination.html');
var CollectionViewController = Controller.extend({
/**
* Controller constructor
* @return {Controller} this
*/
constructor: function($referenceBase, $language) {
this.base($referenceBase, $language);
return this;
},
_initConfig: function() {
this.base();
var config = this._config;
config.filterChangeRefreshDelay = 1000;
config.containerOpenHeight = 213;
},
_initReferences: function($referenceBase, $language) {
this.base();
var references = this._references;
references.dataFeed = new CollectionsDataFeed($language);
references.$collectionsWrapper = $referenceBase;
references.$loadingIndicator = $referenceBase.find('.js-loading-indicator');
references.$collectionsContainer = $referenceBase.find('.js-collections-container');
references.$paginationContainers = $referenceBase.find('.js-pagination');
},
_initState: function() {
this.base();
var state = this._state;
state.currentPageNumber = 0;
// these are set to home page defaults here
state.collectionsPerPage = 12;
state.collectionsPerRow = 4;
state.videoDrawerClasses = '';
state.videosPerDrawer = 5;
},
_initEvents: function() {
this.base();
var boundFunctions = this._boundFunctions;
var references = this._references;
// data processed
boundFunctions.onDataProcessed = this._onDataProcessed.bind(this);
references.dataFeed.on('dataProcessed', boundFunctions.onDataProcessed);
// input param changed alert from data feed
boundFunctions.onInputParamChanged = this._onInputParamChanged.bind(this);
references.dataFeed.on('inputParamChanged', boundFunctions.onInputParamChanged)
// collection rendering events
boundFunctions.onCollectionItemClick = this._onCollectionItemClick.bind(this);
references.$collectionsContainer.on('click', '.js-collection-item', boundFunctions.onCollectionItemClick);
// collection pagination
boundFunctions.onPaginationItemClick = this._onPaginationItemClick.bind(this);
references.$collectionsWrapper.find('.js-pagination').on('click', '.js-pagination-item', boundFunctions.onPaginationItemClick);
},
setCollectionsPerPage: function(n) {
this._state.collectionsPerPage = n;
return this;
},
setCollectionsPerRow: function(n) {
this._state.collectionsPerRow = n;
return this;
},
setVideoDrawerClasses: function(classes) {
this._state.videoDrawerClasses = classes;
return this;
},
setVideosPerDrawer: function(n) {
this._state.videosPerDrawer = n;
return this;
},
getCollections: function(page, collectionsPerPage) {
if (page == undefined) {
page = this._state.currentPageNumber;
} else {
this._state.currentPageNumber = page;
}
if (collectionsPerPage == undefined) {
collectionsPerPage = this._state.collectionsPerPage;
} else {
this._state.collectionsPerPage = collectionsPerPage;
}
var dataFeed = this._references.dataFeed;
dataFeed.setInputParam('offset', page, true)
dataFeed.setInputParam('limit', collectionsPerPage, true);
var collectionsArray = dataFeed.getCollections();
var totalCount = dataFeed.getTotalCount();
if (collectionsArray == false) {
return false;
}
this._updateCollectionsDisplay(collectionsArray, totalCount);
},
_onDataProcessed: function() {
this.getCollections();
},
_updateCollectionsDisplay: function(collectionsArray, totalCount) {
this._renderCollections(collectionsArray);
this._renderPagination(totalCount);
this._initVideoCarousels();
this._references.$loadingIndicator.hide();
var broadcastData = {
totalCount: totalCount
};
this.trigger('collectionsUpdated', broadcastData);
},
_initVideoCarousels: function() {
var $carouselWrappers = this._references.$collectionsContainer.find('.js-carousel-wrapper');
var i = 0;
var len = $carouselWrappers.length;
for (; i < len; i++) {
new NCarousel($carouselWrappers.eq(i), {
autoPlay: false,
allowWrapping: false
});
}
},
_renderCollections: function(collectionsArray, totalCount) {
// local references
var state = this._state;
var collectionsPerRow = state.collectionsPerRow;
var videoDrawerClasses = state.videoDrawerClasses;
var entireRenderedHTML = '';
var tempVideoDrawerArray = [];
var i = 0;
var j;
var len = collectionsArray.length;
for (; i < len; i++) {
var currentCollectionData = Util.Object.clone(collectionsArray[i], true);
currentCollectionData._index = i;
currentCollectionData._collectionStats = this._getCollectionStats(currentCollectionData);
currentCollectionData._plural = (currentCollectionData.videos.length != 1);
// render collections
entireRenderedHTML += viewRenderer.render(collectionTemplate, currentCollectionData);
// add length to each video
for (j = 0; j < currentCollectionData.videos.length; j++) {
currentCollectionData.videos[j]._time = Util.secondsToHMSFormat(currentCollectionData.videos[j].duration);
}
// organize videos into slides
var videoDrawerData = this._prepareVideoDrawerData(currentCollectionData.videos);
// assign remaining needed rendering data
videoDrawerData._index = i;
// store the video drawer data
tempVideoDrawerArray.push(videoDrawerData);
// once we've displayed our desired amount of videos in this column.
// include accumulated video drawer html with the overall html
if ((i + 1) % collectionsPerRow == 0 || i == len - 1) {
entireRenderedHTML += viewRenderer.render(collectionVideoDrawerTemplate, {
_videoDrawerClasses: videoDrawerClasses,
_videoDrawers: tempVideoDrawerArray
});
tempVideoDrawerArray.splice(0);
}
}
this._references.$collectionsContainer.html(entireRenderedHTML);
},
_getCollectionStats: function(collectionData) {
var time = 0;
var videos = collectionData.videos;
if (!videos) {
throw new Error('CollectionViewController._getCollectionStats(): trying to get collection stats on an object with no videos array');
}
var i = 0;
var len = videos.length;
for (; i < len; i++) {
var currentVideo = videos[i];
time += currentVideo.duration;
}
return {
time: Util.secondsToHMSFormat(time),
adoptions: Util.integerCommaFormat(collectionData.adoptions),
views: Util.integerCommaFormat(collectionData.views),
likes: Util.integerCommaFormat(collectionData.likes)
};
},
_prepareVideoDrawerData: function(videos) {
var videosPerDrawer = this._state.videosPerDrawer;
var carouselSlides = [];
var i = 0;
var len = videos.length;
var j;
var slideVideos;
for (; i < len; i += videosPerDrawer) {
slideVideos = [];
for (j = 0; j < videosPerDrawer && j + i < len; j++) {
var currentVideo = videos[i + j];
currentVideo._videoIndex = j + 1;
slideVideos.push(currentVideo);
}
carouselSlides.push({
videos: slideVideos
});
}
return {
carouselSlides: carouselSlides
};
},
_renderPagination: function(totalCount) {
var collectionsPerPage = this._state.collectionsPerPage;
var pages = Math.ceil(totalCount / collectionsPerPage);
var paginationPages = [];
var i = 0;
for (; i < pages; i++) {
var currentPageData = {
pageIndex: i,
pageNumber: i + 1
};
if (i == this._state.currentPageNumber) {
currentPageData.classes = 'selected';
}
paginationPages.push(currentPageData);
}
var renderedPagination = viewRenderer.render(collectionPaginationTemplate, {pages: paginationPages});
this._references.$paginationContainers.html(renderedPagination);
},
_onPaginationItemClick: function(e) {
e.preventDefault();
var $currentTarget = jQuery(e.currentTarget);
var pageIndex = $currentTarget.data('pageIndex');
// if we're already viewing the page clicked, no need to continue
if (pageIndex == this._state.currentPageNumber) {
return;
}
var $paginationItems = this._references.$paginationContainers.find('.js-pagination-item');
$paginationItems.removeClass('selected');
var $selectedItems = $paginationItems.filter('[data-page-index=' + pageIndex + ']');
$selectedItems.addClass('selected');
this._references.$loadingIndicator.show();
this.getCollections(pageIndex);
},
_onCollectionItemClick: function(e) {
var $collectionItem = jQuery(e.currentTarget);
var collectionItemIndex = $collectionItem.data('collectionItemIndex');
var $videoDrawerContainers = this._references.$collectionsContainer.find('.js-video-container');
var $videoDrawers = $videoDrawerContainers.find('.js-video-drawer');
var $currentDrawer;
var i = 0;
var len = $videoDrawers.length;
for (; i < len; i++) {
var $tempVideoDrawer = $videoDrawers.eq(i);
if ($tempVideoDrawer.data('parentCollectionItemIndex') == collectionItemIndex) {
$currentDrawer = $tempVideoDrawer;
break;
}
}
var $currentVideoDrawerContainer = $currentDrawer.closest('.js-video-container');
var $videoDrawersToHide = $currentVideoDrawerContainer
.find('.js-video-drawer')
.not($currentDrawer);
var containerAlreadyOpen = $currentVideoDrawerContainer.hasClass('open');
if (!containerAlreadyOpen) {
// animate the desired container open
this._openVideoDrawerContainers($currentVideoDrawerContainer);
// animate any containers aside from our to-be-open container closed
this._closeVideoDrawerContainers($videoDrawerContainers.not($currentVideoDrawerContainer));
}
// to check if the collection clicked is the same which has the carousel open
//var visible = this._references.$collectionsContainer.find('.js-video-container').find('.open').find('.js-video-drawer').filter(function() {
// return $(this).css('visibility') == 'visible';});
var visible;
this._references.$collectionsContainer.find('.js-video-container').each(function() {
if($(this).hasClass('open')) {
visible = $(this).find('.js-video-drawer').filter(function() {
return $(this).css('visibility') == 'visible';});
}
});
if(collectionItemIndex==visible.data('parentCollectionItemIndex')){
this._hideDrawers($currentDrawer);
this._closeVideoDrawerContainers($currentVideoDrawerContainer);
}
else{
// display the desired drawer
this._showDrawers($currentDrawer);
// hide any other drawers
this._hideDrawers($videoDrawersToHide);
// position the pointer
var $drawerPointer = $currentVideoDrawerContainer.find('.js-pointer');
var collectionItemLeftOffset = $collectionItem.offset().left;
var collectionItemWidth = $collectionItem.width();
var currentDrawerLeftOffset = $currentDrawer.offset().left;
var drawerPointerWidth = $drawerPointer.width();
var staticOffset = 20;
var newLeftPosition = (collectionItemLeftOffset - currentDrawerLeftOffset) + (collectionItemWidth / 2) - (drawerPointerWidth / 2) + staticOffset;
if (containerAlreadyOpen) {
$drawerPointer.animate({
left: newLeftPosition + 'px'
});
} else {
$drawerPointer.css('left', newLeftPosition);
}
}
},
_openVideoDrawerContainers: function($videoDrawerContainers) {
$videoDrawerContainers
.stop(true)
.animate({
height: this._config.containerOpenHeight + 'px'
})
.addClass('open');
},
_closeVideoDrawerContainers: function($videoDrawerContainers) {
$videoDrawerContainers
.stop(true)
.animate({
height: '0px'
})
.removeClass('open');
},
_showDrawers: function($drawer) {
$drawer.css({
position: 'relative',
visibility: 'visible'
});
},
_hideDrawers: function($drawer) {
$drawer.css({
position: '',
visibility: ''
});
},
setInputParam: function(key, value, disableCacheClearing) {
this._references.dataFeed.setInputParam(key, value, disableCacheClearing);
},
setFilterStatus: function(filterParam, filterValue, active) {
this._references.dataFeed.setFilterStatus(filterParam, filterValue, active);
},
clearFilters: function() {
if (!this._references.dataFeed.clearFilters()) {
return;
}
this._onSearchCriteriaChanged();
},
_onInputParamChanged: function() {
this._onSearchCriteriaChanged();
},
_onSearchCriteriaChanged: function() {
this._references.$loadingIndicator.show();
this.getCollections(0);
},
/**
* Controller destructor
* @return {void}
*/
destroy: function() {
this.base();
// TODO: clean up
}
});
return CollectionViewController;
});