190 lines
9.1 KiB
JavaScript
190 lines
9.1 KiB
JavaScript
define(['jquery', 'underscore', 'backbone', 'text!modules/item/itemViewTemplate.html', 'modules/base/baseView', 'classes/profile', 'jQueryPlugins'],
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function ($, _, Backbone, itemViewTemplate, BaseView, Profile) {
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var ItemView = BaseView.extend({
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collRicetta: null,
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collIngredienti: null,
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fetchedRicetta: false,
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fetchedIngredienti: false,
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IMG_WIDTH: 500,
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currentImg: 0,
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maxImages: 3,
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speed: 500,
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//initialize template
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template: _.template(itemViewTemplate),
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initialize: function (options) {
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this.id = "ItemView";
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var self = this;
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ItemView.__super__.initialize.call(this);
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this.collRicetta = options.collRicetta;
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this.collIngredienti = options.collIngredienti;
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this.collRicetta.fetch({success: function () {
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self.fetchedRicetta = true;
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self.render();
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}});
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this.collIngredienti.fetch({success: function () {
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self.fetchedIngredienti = true;
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self.render();
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}});
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},
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isStayInPage: function () {
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return false;
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},
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events: {
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"click #favoriteBtn": "favBtn",
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"click #backBtn": "backBtn"
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},
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backBtn: function (e) {
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e.preventDefault();
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window.history.back();
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},
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favBtn: function (e) {
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e.preventDefault();
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var self = this;
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var ric = this.collRicetta.toJSON()[0];
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if (!Profile.isConnected())
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{
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self.$el.find('#popupDialog').popup("open");
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return;
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}
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Profile.addRicettaBloccoNote(ric.ricetta_id,
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function (msg) {
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var favBtn = self.$el.find('#favoriteBtn');
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favBtn.addClass('ui-disabled');
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}
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);
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},
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onShowed: function(){
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$('body').scrollTop(0);
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this.$el.find("#Gallery").swipe({
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triggerOnTouchEnd: true,
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swipeStatus: this._swipeStatus,
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allowPageScroll: "vertical",
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threshold: 75
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});
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},
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//render the content into div of view
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render: function () {
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if (this.fetchedIngredienti && this.fetchedRicetta)
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{
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ItemView.__super__.render.call(this);
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var self = this;
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var ric = self.collRicetta.toJSON()[0];
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this.maxImages = ric.foto.length;
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Profile.existRicettaBloccoNote(ric.ricetta_id,
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function (exist) {
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self.$el.append(self.template({
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ricetta: self.collRicetta.toJSON()[0],
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ingredienti: self.collIngredienti.toJSON()
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}));
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self.scrollPositions = [];
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self.$arrayContent = self.$el.find('div[data-role="content"]');
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self.$arrayNavBar = self.$el.find('div[data-role="navbar"] a');
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for (var i = self.$arrayContent.length - 1; i >= 0; i--) {
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self.scrollPositions.push(0);
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};
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var favBtn = self.$el.find('#favoriteBtn');
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if (exist > 0)
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favBtn.addClass('ui-disabled');
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self.$arrayNavBar.on("click", function (e) {
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e.preventDefault();
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var index = jQuery.inArray(this, self.$arrayNavBar);
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self.goToContent(index);
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});
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self.$arrayContent.on("swipeleft", function (e) {
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var index = jQuery.inArray(this, self.$arrayContent);
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self.goToContent(index + 1);
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});
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self.$arrayContent.on("swiperight", function (e) {
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var index = jQuery.inArray(this, self.$arrayContent);
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self.goToContent(index - 1);
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});
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self.trigger("renderCompleted:Item", self);
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}
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);
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//this.el is the root element of Backbone.View. By default, it is a div.
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//$el is cached jQuery object for the view's element.
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//append the compiled template into view div container
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//return to enable chained calls
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return this;
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}
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},
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/**
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* Catch each phase of the swipe.
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* move : we drag the div
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* cancel : we animate back to where we were
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* end : we animate to the next image
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*/
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_swipeStatus: function (event, phase, direction, distance) {
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//If we are moving before swipe, and we are going L or R in X mode, or U or D in Y mode then drag.
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if (phase == "move" && (direction == "left" || direction == "right")) {
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var duration = 0;
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if (direction == "left") {
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scrollImages((this.IMG_WIDTH * this.currentImg) + distance, duration);
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} else if (direction == "right") {
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scrollImages((this.IMG_WIDTH * this.currentImg) - distance, duration);
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}
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} else if (phase == "cancel") {
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scrollImages(this.IMG_WIDTH * this.currentImg, this.speed);
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} else if (phase == "end") {
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if (direction == "right") {
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self._previousImage();
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} else if (direction == "left") {
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self._nextImage();
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}
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}
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},
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_previousImage: function () {
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this.currentImg = Math.max(this.currentImg - 1, 0);
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scrollImages(this.IMG_WIDTH * this.currentImg, this.speed);
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},
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_nextImage: function() {
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this.currentImg = Math.min(this.currentImg + 1, this.maxImages - 1);
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this._scrollImages(this.IMG_WIDTH * this.currentImg, this.speed);
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},
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/**
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* Manually update the position of the imgs on drag
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*/
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_scrollImages: function (distance, duration) {
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imgs.css("transition-duration", (duration / 1000).toFixed(1) + "s");
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//inverse the number we set in the css
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var value = (distance < 0 ? "" : "-") + Math.abs(distance).toString();
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imgs.css("transform", "translate(" + value + "px,0)");
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},
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goToContent: function (newIndex)
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{
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if (this.$arrayContent.length > newIndex && newIndex >= 0)
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{
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this.scrollPositions[this.indexContent] = $('body').scrollTop();
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this.indexContent = newIndex;
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this.switchContent();
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$('body').scrollTop(this.scrollPositions[this.indexContent]);
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}
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},
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switchContent: function () {
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this.$arrayContent.hide();
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this.$arrayNavBar.removeClass('ui-btn-active');
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this.$arrayNavBar.removeClass('ui-state-persist');
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$(this.$arrayContent[this.indexContent]).show();
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$(this.$arrayNavBar[this.indexContent]).addClass('ui-btn-active');
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$(this.$arrayNavBar[this.indexContent]).addClass('ui-state-persist');
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}
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});
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return ItemView;
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}); |