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79 lines
2.1 KiB
JavaScript
79 lines
2.1 KiB
JavaScript
/* global Whisper, Backbone, Mustache, _, $ */
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/*
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* Whisper.View
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*
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* This is the base for most of our views. The Backbone view is extended
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* with some conveniences:
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*
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* 1. Pre-parses all our mustache templates for performance.
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* https://github.com/janl/mustache.js#pre-parsing-and-caching-templates
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*
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* 2. Defines a default definition for render() which allows sub-classes
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* to simply specify a templateName and renderAttributes which are plugged
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* into Mustache.render
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*
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* 3. Makes all the templates available for rendering as partials.
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* https://github.com/janl/mustache.js#partials
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*
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* 4. Provides some common functionality, e.g. confirmation dialog
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*
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*/
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// eslint-disable-next-line func-names
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(function() {
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'use strict';
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window.Whisper = window.Whisper || {};
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Whisper.View = Backbone.View.extend(
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{
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constructor(...params) {
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Backbone.View.call(this, ...params);
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Mustache.parse(_.result(this, 'template'));
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},
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render_attributes() {
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return _.result(this.model, 'attributes', {});
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},
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render_partials() {
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return Whisper.View.Templates;
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},
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template() {
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if (this.templateName) {
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return Whisper.View.Templates[this.templateName];
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}
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return '';
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},
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render() {
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const attrs = _.result(this, 'render_attributes', {});
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const template = _.result(this, 'template', '');
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const partials = _.result(this, 'render_partials', '');
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this.$el.html(Mustache.render(template, attrs, partials));
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return this;
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},
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confirm(message, okText) {
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return new Promise((resolve, reject) => {
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window.confirmationDialog({
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title: message,
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okText,
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resolve,
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reject,
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});
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});
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},
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},
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{
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// Class attributes
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Templates: (() => {
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const templates = {};
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$('script[type="text/x-tmpl-mustache"]').each((i, el) => {
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const $el = $(el);
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const id = $el.attr('id');
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templates[id] = $el.html();
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});
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return templates;
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})(),
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}
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);
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})();
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