946 lines
30 KiB
JavaScript
946 lines
30 KiB
JavaScript
this.recline = this.recline || {};
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// Views module following classic module pattern
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recline.View = function($) {
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var my = {};
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// Parse a URL query string (?xyz=abc...) into a dictionary.
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function parseQueryString(q) {
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var urlParams = {},
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e, d = function (s) {
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return unescape(s.replace(/\+/g, " "));
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},
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r = /([^&=]+)=?([^&]*)/g;
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if (q && q.length && q[0] === '?') {
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q = q.slice(1);
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}
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while (e = r.exec(q)) {
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// TODO: have values be array as query string allow repetition of keys
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urlParams[d(e[1])] = d(e[2]);
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}
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return urlParams;
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}
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// ## notify
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//
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// Create a notification (a div.alert-message in div.alert-messsages) using provide messages and options. Options are:
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//
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// * category: warning (default), success, error
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// * persist: if true alert is persistent, o/w hidden after 3s (default = false)
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// * loader: if true show loading spinner
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my.notify = function(message, options) {
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if (!options) var options = {};
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var tmplData = _.extend({
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msg: message,
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category: 'warning'
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},
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options);
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var _template = ' \
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<div class="alert-message {{category}} fade in" data-alert="alert"><a class="close" href="#">×</a> \
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<p>{{msg}} \
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{{#loader}} \
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<img src="images/small-spinner.gif" class="notification-loader"> \
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{{/loader}} \
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</p> \
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</div>';
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var _templated = $.mustache(_template, tmplData);
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_templated = $(_templated).appendTo($('.data-explorer .alert-messages'));
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if (!options.persist) {
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setTimeout(function() {
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$(_templated).fadeOut(1000, function() {
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$(this).remove();
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});
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}, 1000);
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}
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}
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// ## clearNotifications
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//
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// Clear all existing notifications
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my.clearNotifications = function() {
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var $notifications = $('.data-explorer .alert-message');
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$notifications.remove();
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}
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// The primary view for the entire application.
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//
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// It should be initialized with a recline.Model.Dataset object and an existing
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// dom element to attach to (the existing DOM element is important for
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// rendering of FlotGraph subview).
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//
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// To pass in configuration options use the config key in initialization hash
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// e.g.
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//
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// var explorer = new DataExplorer({
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// config: {...}
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// })
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//
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// Config options:
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//
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// * displayCount: how many documents to display initially (default: 10)
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// * readOnly: true/false (default: false) value indicating whether to
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// operate in read-only mode (hiding all editing options).
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//
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// All other views as contained in this one.
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my.DataExplorer = Backbone.View.extend({
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template: ' \
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<div class="data-explorer"> \
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<div class="alert-messages"></div> \
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\
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<div class="header"> \
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<ul class="navigation"> \
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<li class="active"><a href="#grid" class="btn">Grid</a> \
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<li><a href="#graph" class="btn">Graph</a></li> \
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</ul> \
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<div class="pagination"> \
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<form class="display-count"> \
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Showing 0 to <input name="displayCount" type="text" value="{{displayCount}}" title="Edit and hit enter to change the number of rows displayed" /> of <span class="doc-count">{{docCount}}</span> \
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</form> \
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</div> \
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</div> \
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<div class="data-view-container"></div> \
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<div class="dialog-overlay" style="display: none; z-index: 101; "> </div> \
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<div class="dialog ui-draggable" style="display: none; z-index: 102; top: 101px; "> \
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<div class="dialog-frame" style="width: 700px; visibility: visible; "> \
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<div class="dialog-content dialog-border"></div> \
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</div> \
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</div> \
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</div> \
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',
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events: {
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'submit form.display-count': 'onDisplayCountUpdate'
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},
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initialize: function(options) {
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var self = this;
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this.el = $(this.el);
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this.config = _.extend({
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displayCount: 50
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, readOnly: false
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},
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options.config);
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if (this.config.readOnly) {
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this.setReadOnly();
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}
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// Hash of 'page' views (i.e. those for whole page) keyed by page name
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this.pageViews = {
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grid: new my.DataTable({
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model: this.model,
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config: this.config
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})
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, graph: new my.FlotGraph({
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model: this.model
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})
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};
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// this must be called after pageViews are created
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this.render();
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this.router = new Backbone.Router();
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this.setupRouting();
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// retrieve basic data like headers etc
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// note this.model and dataset returned are the same
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this.model.fetch()
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.done(function(dataset) {
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self.el.find('.doc-count').text(self.model.docCount || 'Unknown');
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self.query();
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})
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.fail(function(error) {
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my.notify(error.message, {category: 'error', persist: true});
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});
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},
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query: function() {
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this.config.displayCount = parseInt(this.el.find('input[name="displayCount"]').val());
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var queryObj = {
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size: this.config.displayCount
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};
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my.notify('Loading data', {loader: true});
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this.model.query(queryObj)
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.done(function() {
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my.clearNotifications();
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my.notify('Data loaded', {category: 'success'});
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})
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.fail(function(error) {
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my.clearNotifications();
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my.notify(error.message, {category: 'error', persist: true});
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});
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},
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onDisplayCountUpdate: function(e) {
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e.preventDefault();
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this.query();
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},
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setReadOnly: function() {
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this.el.addClass('read-only');
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},
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render: function() {
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var tmplData = this.model.toTemplateJSON();
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tmplData.displayCount = this.config.displayCount;
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var template = $.mustache(this.template, tmplData);
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$(this.el).html(template);
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var $dataViewContainer = this.el.find('.data-view-container');
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_.each(this.pageViews, function(view, pageName) {
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$dataViewContainer.append(view.el)
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});
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},
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setupRouting: function() {
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var self = this;
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this.router.route('', 'grid', function() {
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self.updateNav('grid');
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});
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this.router.route(/grid(\?.*)?/, 'view', function(queryString) {
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self.updateNav('grid', queryString);
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});
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this.router.route(/graph(\?.*)?/, 'graph', function(queryString) {
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self.updateNav('graph', queryString);
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// we have to call here due to fact plot may not have been able to draw
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// if it was hidden until now - see comments in FlotGraph.redraw
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qsParsed = parseQueryString(queryString);
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if ('graph' in qsParsed) {
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var chartConfig = JSON.parse(qsParsed['graph']);
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_.extend(self.pageViews['graph'].chartConfig, chartConfig);
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}
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self.pageViews['graph'].redraw();
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});
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},
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updateNav: function(pageName, queryString) {
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this.el.find('.navigation li').removeClass('active');
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var $el = this.el.find('.navigation li a[href=#' + pageName + ']');
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$el.parent().addClass('active');
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// show the specific page
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_.each(this.pageViews, function(view, pageViewName) {
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if (pageViewName === pageName) {
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view.el.show();
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} else {
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view.el.hide();
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}
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});
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}
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});
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// DataTable provides a tabular view on a Dataset.
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//
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// Initialize it with a recline.Dataset object.
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my.DataTable = Backbone.View.extend({
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tagName: "div",
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className: "data-table-container",
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initialize: function() {
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var self = this;
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this.el = $(this.el);
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_.bindAll(this, 'render');
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this.model.currentDocuments.bind('add', this.render);
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this.model.currentDocuments.bind('reset', this.render);
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this.model.currentDocuments.bind('remove', this.render);
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this.state = {};
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this.hiddenHeaders = [];
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},
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events: {
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'click .column-header-menu': 'onColumnHeaderClick'
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, 'click .row-header-menu': 'onRowHeaderClick'
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, 'click .root-header-menu': 'onRootHeaderClick'
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, 'click .data-table-menu li a': 'onMenuClick'
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},
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// TODO: delete or re-enable (currently this code is not used from anywhere except deprecated or disabled methods (see above)).
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// showDialog: function(template, data) {
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// if (!data) data = {};
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// util.show('dialog');
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// util.render(template, 'dialog-content', data);
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// util.observeExit($('.dialog-content'), function() {
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// util.hide('dialog');
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// })
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// $('.dialog').draggable({ handle: '.dialog-header', cursor: 'move' });
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// },
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// ======================================================
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// Column and row menus
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onColumnHeaderClick: function(e) {
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this.state.currentColumn = $(e.target).siblings().text();
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util.position('data-table-menu', e);
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util.render('columnActions', 'data-table-menu');
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},
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onRowHeaderClick: function(e) {
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this.state.currentRow = $(e.target).parents('tr:first').attr('data-id');
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util.position('data-table-menu', e);
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util.render('rowActions', 'data-table-menu');
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},
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onRootHeaderClick: function(e) {
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util.position('data-table-menu', e);
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util.render('rootActions', 'data-table-menu', {'columns': this.hiddenHeaders});
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},
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onMenuClick: function(e) {
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var self = this;
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e.preventDefault();
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var actions = {
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bulkEdit: function() { self.showTransformColumnDialog('bulkEdit', {name: self.state.currentColumn}) },
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transform: function() { self.showTransformDialog('transform') },
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sortAsc: function() { self.setColumnSort('asc') },
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sortDesc: function() { self.setColumnSort('desc') },
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hideColumn: function() { self.hideColumn() },
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showColumn: function() { self.showColumn(e) },
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// TODO: Delete or re-implement ...
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csv: function() { window.location.href = app.csvUrl },
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json: function() { window.location.href = "_rewrite/api/json" },
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urlImport: function() { showDialog('urlImport') },
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pasteImport: function() { showDialog('pasteImport') },
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uploadImport: function() { showDialog('uploadImport') },
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// END TODO
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deleteColumn: function() {
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var msg = "Are you sure? This will delete '" + self.state.currentColumn + "' from all documents.";
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// TODO:
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alert('This function needs to be re-implemented');
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return;
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if (confirm(msg)) costco.deleteColumn(self.state.currentColumn);
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},
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deleteRow: function() {
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var doc = _.find(self.model.currentDocuments.models, function(doc) {
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// important this is == as the currentRow will be string (as comes
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// from DOM) while id may be int
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return doc.id == self.state.currentRow
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});
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doc.destroy().then(function() {
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self.model.currentDocuments.remove(doc);
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my.notify("Row deleted successfully");
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})
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.fail(function(err) {
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my.notify("Errorz! " + err)
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})
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}
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}
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util.hide('data-table-menu');
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actions[$(e.target).attr('data-action')]();
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},
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showTransformColumnDialog: function() {
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var $el = $('.dialog-content');
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util.show('dialog');
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var view = new my.ColumnTransform({
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model: this.model
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});
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view.state = this.state;
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view.render();
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$el.empty();
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$el.append(view.el);
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util.observeExit($el, function() {
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util.hide('dialog');
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})
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$('.dialog').draggable({ handle: '.dialog-header', cursor: 'move' });
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},
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showTransformDialog: function() {
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var $el = $('.dialog-content');
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util.show('dialog');
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var view = new my.DataTransform({
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});
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view.render();
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$el.empty();
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$el.append(view.el);
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util.observeExit($el, function() {
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util.hide('dialog');
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})
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$('.dialog').draggable({ handle: '.dialog-header', cursor: 'move' });
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},
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setColumnSort: function(order) {
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var query = _.extend(this.model.queryState, {sort: [[this.state.currentColumn, order]]});
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this.model.query(query);
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},
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hideColumn: function() {
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this.hiddenHeaders.push(this.state.currentColumn);
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this.render();
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},
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showColumn: function(e) {
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this.hiddenHeaders = _.without(this.hiddenHeaders, $(e.target).data('column'));
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this.render();
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},
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// ======================================================
|
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// Core Templating
|
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template: ' \
|
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<div class="data-table-menu-overlay" style="display: none; z-index: 101; "> </div> \
|
||
<ul class="data-table-menu"></ul> \
|
||
<table class="data-table" cellspacing="0"> \
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<thead> \
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<tr> \
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{{#notEmpty}} \
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<th class="column-header"> \
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<div class="column-header-title"> \
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<a class="root-header-menu"></a> \
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<span class="column-header-name"></span> \
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</div> \
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</th> \
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{{/notEmpty}} \
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{{#headers}} \
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<th class="column-header"> \
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<div class="column-header-title"> \
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<a class="column-header-menu"></a> \
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<span class="column-header-name">{{.}}</span> \
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</div> \
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</div> \
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</th> \
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{{/headers}} \
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</tr> \
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</thead> \
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<tbody></tbody> \
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</table> \
|
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',
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toTemplateJSON: function() {
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var modelData = this.model.toJSON()
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modelData.notEmpty = ( this.headers.length > 0 )
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modelData.headers = this.headers;
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||
return modelData;
|
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},
|
||
render: function() {
|
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var self = this;
|
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this.headers = _.filter(this.model.get('headers'), function(header) {
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return _.indexOf(self.hiddenHeaders, header) == -1;
|
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});
|
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var htmls = $.mustache(this.template, this.toTemplateJSON());
|
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this.el.html(htmls);
|
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this.model.currentDocuments.forEach(function(doc) {
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var tr = $('<tr />');
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self.el.find('tbody').append(tr);
|
||
var newView = new my.DataTableRow({
|
||
model: doc,
|
||
el: tr,
|
||
headers: self.headers,
|
||
});
|
||
newView.render();
|
||
});
|
||
this.el.toggleClass('no-hidden', (self.hiddenHeaders.length == 0));
|
||
return this;
|
||
}
|
||
});
|
||
|
||
// DataTableRow View for rendering an individual document.
|
||
//
|
||
// Since we want this to update in place it is up to creator to provider the element to attach to.
|
||
// In addition you must pass in a headers in the constructor options. This should be list of headers for the DataTable.
|
||
my.DataTableRow = Backbone.View.extend({
|
||
initialize: function(options) {
|
||
_.bindAll(this, 'render');
|
||
this._headers = options.headers;
|
||
this.el = $(this.el);
|
||
this.model.bind('change', this.render);
|
||
},
|
||
|
||
template: ' \
|
||
<td><a class="row-header-menu"></a></td> \
|
||
{{#cells}} \
|
||
<td data-header="{{header}}"> \
|
||
<div class="data-table-cell-content"> \
|
||
<a href="javascript:{}" class="data-table-cell-edit" title="Edit this cell"> </a> \
|
||
<div class="data-table-cell-value">{{value}}</div> \
|
||
</div> \
|
||
</td> \
|
||
{{/cells}} \
|
||
',
|
||
events: {
|
||
'click .data-table-cell-edit': 'onEditClick',
|
||
// cell editor
|
||
'click .data-table-cell-editor .okButton': 'onEditorOK',
|
||
'click .data-table-cell-editor .cancelButton': 'onEditorCancel'
|
||
},
|
||
|
||
toTemplateJSON: function() {
|
||
var doc = this.model;
|
||
var cellData = _.map(this._headers, function(header) {
|
||
return {header: header, value: doc.get(header)}
|
||
})
|
||
return { id: this.id, cells: cellData }
|
||
},
|
||
|
||
render: function() {
|
||
this.el.attr('data-id', this.model.id);
|
||
var html = $.mustache(this.template, this.toTemplateJSON());
|
||
$(this.el).html(html);
|
||
return this;
|
||
},
|
||
|
||
// ======================================================
|
||
// Cell Editor
|
||
|
||
onEditClick: function(e) {
|
||
var editing = this.el.find('.data-table-cell-editor-editor');
|
||
if (editing.length > 0) {
|
||
editing.parents('.data-table-cell-value').html(editing.text()).siblings('.data-table-cell-edit').removeClass("hidden");
|
||
}
|
||
$(e.target).addClass("hidden");
|
||
var cell = $(e.target).siblings('.data-table-cell-value');
|
||
cell.data("previousContents", cell.text());
|
||
util.render('cellEditor', cell, {value: cell.text()});
|
||
},
|
||
|
||
onEditorOK: function(e) {
|
||
var cell = $(e.target);
|
||
var rowId = cell.parents('tr').attr('data-id');
|
||
var header = cell.parents('td').attr('data-header');
|
||
var newValue = cell.parents('.data-table-cell-editor').find('.data-table-cell-editor-editor').val();
|
||
var newData = {};
|
||
newData[header] = newValue;
|
||
this.model.set(newData);
|
||
my.notify("Updating row...", {loader: true});
|
||
this.model.save().then(function(response) {
|
||
my.notify("Row updated successfully", {category: 'success'});
|
||
})
|
||
.fail(function() {
|
||
my.notify('Error saving row', {
|
||
category: 'error',
|
||
persist: true
|
||
});
|
||
});
|
||
},
|
||
|
||
onEditorCancel: function(e) {
|
||
var cell = $(e.target).parents('.data-table-cell-value');
|
||
cell.html(cell.data('previousContents')).siblings('.data-table-cell-edit').removeClass("hidden");
|
||
}
|
||
});
|
||
|
||
|
||
// View (Dialog) for doing data transformations (on columns of data).
|
||
my.ColumnTransform = Backbone.View.extend({
|
||
className: 'transform-column-view',
|
||
template: ' \
|
||
<div class="dialog-header"> \
|
||
Functional transform on column {{name}} \
|
||
</div> \
|
||
<div class="dialog-body"> \
|
||
<div class="grid-layout layout-tight layout-full"> \
|
||
<table> \
|
||
<tbody> \
|
||
<tr> \
|
||
<td colspan="4"> \
|
||
<div class="grid-layout layout-tight layout-full"> \
|
||
<table rows="4" cols="4"> \
|
||
<tbody> \
|
||
<tr style="vertical-align: bottom;"> \
|
||
<td colspan="4"> \
|
||
Expression \
|
||
</td> \
|
||
</tr> \
|
||
<tr> \
|
||
<td colspan="3"> \
|
||
<div class="input-container"> \
|
||
<textarea class="expression-preview-code"></textarea> \
|
||
</div> \
|
||
</td> \
|
||
<td class="expression-preview-parsing-status" width="150" style="vertical-align: top;"> \
|
||
No syntax error. \
|
||
</td> \
|
||
</tr> \
|
||
<tr> \
|
||
<td colspan="4"> \
|
||
<div id="expression-preview-tabs" class="refine-tabs ui-tabs ui-widget ui-widget-content ui-corner-all"> \
|
||
<span>Preview</span> \
|
||
<div id="expression-preview-tabs-preview" class="ui-tabs-panel ui-widget-content ui-corner-bottom"> \
|
||
<div class="expression-preview-container" style="width: 652px; "> \
|
||
</div> \
|
||
</div> \
|
||
</div> \
|
||
</td> \
|
||
</tr> \
|
||
</tbody> \
|
||
</table> \
|
||
</div> \
|
||
</td> \
|
||
</tr> \
|
||
</tbody> \
|
||
</table> \
|
||
</div> \
|
||
</div> \
|
||
<div class="dialog-footer"> \
|
||
<button class="okButton btn primary"> Update All </button> \
|
||
<button class="cancelButton btn danger">Cancel</button> \
|
||
</div> \
|
||
',
|
||
|
||
events: {
|
||
'click .okButton': 'onSubmit'
|
||
, 'keydown .expression-preview-code': 'onEditorKeydown'
|
||
},
|
||
|
||
initialize: function() {
|
||
this.el = $(this.el);
|
||
},
|
||
|
||
render: function() {
|
||
var htmls = $.mustache(this.template,
|
||
{name: this.state.currentColumn}
|
||
)
|
||
this.el.html(htmls);
|
||
// Put in the basic (identity) transform script
|
||
// TODO: put this into the template?
|
||
var editor = this.el.find('.expression-preview-code');
|
||
editor.val("function(doc) {\n doc['"+ this.state.currentColumn+"'] = doc['"+ this.state.currentColumn+"'];\n return doc;\n}");
|
||
editor.focus().get(0).setSelectionRange(18, 18);
|
||
editor.keydown();
|
||
},
|
||
|
||
onSubmit: function(e) {
|
||
var self = this;
|
||
var funcText = this.el.find('.expression-preview-code').val();
|
||
var editFunc = costco.evalFunction(funcText);
|
||
if (editFunc.errorMessage) {
|
||
my.notify("Error with function! " + editFunc.errorMessage);
|
||
return;
|
||
}
|
||
util.hide('dialog');
|
||
my.notify("Updating all visible docs. This could take a while...", {persist: true, loader: true});
|
||
var docs = self.model.currentDocuments.map(function(doc) {
|
||
return doc.toJSON();
|
||
});
|
||
// TODO: notify about failed docs?
|
||
var toUpdate = costco.mapDocs(docs, editFunc).edited;
|
||
var totalToUpdate = toUpdate.length;
|
||
function onCompletedUpdate() {
|
||
totalToUpdate += -1;
|
||
if (totalToUpdate === 0) {
|
||
my.notify(toUpdate.length + " documents updated successfully");
|
||
alert('WARNING: We have only updated the docs in this view. (Updating of all docs not yet implemented!)');
|
||
self.remove();
|
||
}
|
||
}
|
||
// TODO: Very inefficient as we search through all docs every time!
|
||
_.each(toUpdate, function(editedDoc) {
|
||
var realDoc = self.model.currentDocuments.get(editedDoc.id);
|
||
realDoc.set(editedDoc);
|
||
realDoc.save().then(onCompletedUpdate).fail(onCompletedUpdate)
|
||
});
|
||
},
|
||
|
||
onEditorKeydown: function(e) {
|
||
var self = this;
|
||
// if you don't setTimeout it won't grab the latest character if you call e.target.value
|
||
window.setTimeout( function() {
|
||
var errors = self.el.find('.expression-preview-parsing-status');
|
||
var editFunc = costco.evalFunction(e.target.value);
|
||
if (!editFunc.errorMessage) {
|
||
errors.text('No syntax error.');
|
||
var docs = self.model.currentDocuments.map(function(doc) {
|
||
return doc.toJSON();
|
||
});
|
||
var previewData = costco.previewTransform(docs, editFunc, self.state.currentColumn);
|
||
util.render('editPreview', 'expression-preview-container', {rows: previewData});
|
||
} else {
|
||
errors.text(editFunc.errorMessage);
|
||
}
|
||
}, 1, true);
|
||
}
|
||
});
|
||
|
||
// View (Dialog) for doing data transformations on whole dataset.
|
||
my.DataTransform = Backbone.View.extend({
|
||
className: 'transform-view',
|
||
template: ' \
|
||
<div class="dialog-header"> \
|
||
Recursive transform on all rows \
|
||
</div> \
|
||
<div class="dialog-body"> \
|
||
<div class="grid-layout layout-full"> \
|
||
<p class="info">Traverse and transform objects by visiting every node on a recursive walk using <a href="https://github.com/substack/js-traverse">js-traverse</a>.</p> \
|
||
<table> \
|
||
<tbody> \
|
||
<tr> \
|
||
<td colspan="4"> \
|
||
<div class="grid-layout layout-tight layout-full"> \
|
||
<table rows="4" cols="4"> \
|
||
<tbody> \
|
||
<tr style="vertical-align: bottom;"> \
|
||
<td colspan="4"> \
|
||
Expression \
|
||
</td> \
|
||
</tr> \
|
||
<tr> \
|
||
<td colspan="3"> \
|
||
<div class="input-container"> \
|
||
<textarea class="expression-preview-code"></textarea> \
|
||
</div> \
|
||
</td> \
|
||
<td class="expression-preview-parsing-status" width="150" style="vertical-align: top;"> \
|
||
No syntax error. \
|
||
</td> \
|
||
</tr> \
|
||
<tr> \
|
||
<td colspan="4"> \
|
||
<div id="expression-preview-tabs" class="refine-tabs ui-tabs ui-widget ui-widget-content ui-corner-all"> \
|
||
<span>Preview</span> \
|
||
<div id="expression-preview-tabs-preview" class="ui-tabs-panel ui-widget-content ui-corner-bottom"> \
|
||
<div class="expression-preview-container" style="width: 652px; "> \
|
||
</div> \
|
||
</div> \
|
||
</div> \
|
||
</td> \
|
||
</tr> \
|
||
</tbody> \
|
||
</table> \
|
||
</div> \
|
||
</td> \
|
||
</tr> \
|
||
</tbody> \
|
||
</table> \
|
||
</div> \
|
||
</div> \
|
||
<div class="dialog-footer"> \
|
||
<button class="okButton button"> Update All </button> \
|
||
<button class="cancelButton button">Cancel</button> \
|
||
</div> \
|
||
',
|
||
|
||
initialize: function() {
|
||
this.el = $(this.el);
|
||
},
|
||
|
||
render: function() {
|
||
this.el.html(this.template);
|
||
}
|
||
});
|
||
|
||
|
||
// Graph view for a Dataset using Flot graphing library.
|
||
//
|
||
// Initialization arguments:
|
||
//
|
||
// * model: recline.Model.Dataset
|
||
// * config: (optional) graph configuration hash of form:
|
||
//
|
||
// {
|
||
// group: {column name for x-axis},
|
||
// series: [{column name for series A}, {column name series B}, ... ],
|
||
// graphType: 'line'
|
||
// }
|
||
//
|
||
// NB: should *not* provide an el argument to the view but must let the view
|
||
// generate the element itself (you can then append view.el to the DOM.
|
||
my.FlotGraph = Backbone.View.extend({
|
||
|
||
tagName: "div",
|
||
className: "data-graph-container",
|
||
|
||
template: ' \
|
||
<div class="editor"> \
|
||
<div class="editor-info editor-hide-info"> \
|
||
<h3 class="action-toggle-help">Help »</h3> \
|
||
<p>To create a chart select a column (group) to use as the x-axis \
|
||
then another column (Series A) to plot against it.</p> \
|
||
<p>You can add add \
|
||
additional series by clicking the "Add series" button</p> \
|
||
</div> \
|
||
<form class="form-stacked"> \
|
||
<div class="clearfix"> \
|
||
<label>Graph Type</label> \
|
||
<div class="input editor-type"> \
|
||
<select> \
|
||
<option value="line">Line</option> \
|
||
</select> \
|
||
</div> \
|
||
<label>Group Column (x-axis)</label> \
|
||
<div class="input editor-group"> \
|
||
<select> \
|
||
{{#headers}} \
|
||
<option value="{{.}}">{{.}}</option> \
|
||
{{/headers}} \
|
||
</select> \
|
||
</div> \
|
||
<div class="editor-series-group"> \
|
||
<div class="editor-series"> \
|
||
<label>Series <span>A (y-axis)</span></label> \
|
||
<div class="input"> \
|
||
<select> \
|
||
{{#headers}} \
|
||
<option value="{{.}}">{{.}}</option> \
|
||
{{/headers}} \
|
||
</select> \
|
||
</div> \
|
||
</div> \
|
||
</div> \
|
||
</div> \
|
||
<div class="editor-buttons"> \
|
||
<button class="btn editor-add">Add Series</button> \
|
||
</div> \
|
||
<div class="editor-buttons editor-submit" comment="hidden temporarily" style="display: none;"> \
|
||
<button class="editor-save">Save</button> \
|
||
<input type="hidden" class="editor-id" value="chart-1" /> \
|
||
</div> \
|
||
</form> \
|
||
</div> \
|
||
<div class="panel graph"></div> \
|
||
</div> \
|
||
',
|
||
|
||
events: {
|
||
'change form select': 'onEditorSubmit'
|
||
, 'click .editor-add': 'addSeries'
|
||
, 'click .action-remove-series': 'removeSeries'
|
||
, 'click .action-toggle-help': 'toggleHelp'
|
||
},
|
||
|
||
initialize: function(options, config) {
|
||
var self = this;
|
||
this.el = $(this.el);
|
||
_.bindAll(this, 'render', 'redraw');
|
||
// we need the model.headers to render properly
|
||
this.model.bind('change', this.render);
|
||
this.model.currentDocuments.bind('add', this.redraw);
|
||
this.model.currentDocuments.bind('reset', this.redraw);
|
||
this.chartConfig = _.extend({
|
||
group: null,
|
||
series: [],
|
||
graphType: 'line'
|
||
},
|
||
config)
|
||
this.render();
|
||
},
|
||
|
||
toTemplateJSON: function() {
|
||
return this.model.toJSON();
|
||
},
|
||
|
||
render: function() {
|
||
htmls = $.mustache(this.template, this.toTemplateJSON());
|
||
$(this.el).html(htmls);
|
||
// now set a load of stuff up
|
||
this.$graph = this.el.find('.panel.graph');
|
||
// for use later when adding additional series
|
||
// could be simpler just to have a common template!
|
||
this.$seriesClone = this.el.find('.editor-series').clone();
|
||
this._updateSeries();
|
||
return this;
|
||
},
|
||
|
||
onEditorSubmit: function(e) {
|
||
var select = this.el.find('.editor-group select');
|
||
this._getEditorData();
|
||
// update navigation
|
||
// TODO: make this less invasive (e.g. preserve other keys in query string)
|
||
window.location.hash = window.location.hash.split('?')[0] +
|
||
'?graph=' + JSON.stringify(this.chartConfig);
|
||
this.redraw();
|
||
},
|
||
|
||
redraw: function() {
|
||
// There appear to be issues generating a Flot graph if either:
|
||
|
||
// * The relevant div that graph attaches to his hidden at the moment of creating the plot -- Flot will complain with
|
||
//
|
||
// Uncaught Invalid dimensions for plot, width = 0, height = 0
|
||
// * There is no data for the plot -- either same error or may have issues later with errors like 'non-existent node-value'
|
||
var areWeVisible = !jQuery.expr.filters.hidden(this.el[0]);
|
||
if (!this.plot && (!areWeVisible || this.model.currentDocuments.length == 0)) {
|
||
return
|
||
}
|
||
// create this.plot and cache it
|
||
if (!this.plot) {
|
||
// only lines for the present
|
||
options = {
|
||
id: 'line',
|
||
name: 'Line Chart'
|
||
};
|
||
this.plot = $.plot(this.$graph, this.createSeries(), options);
|
||
}
|
||
this.plot.setData(this.createSeries());
|
||
this.plot.resize();
|
||
this.plot.setupGrid();
|
||
this.plot.draw();
|
||
},
|
||
|
||
_getEditorData: function() {
|
||
$editor = this
|
||
var series = this.$series.map(function () {
|
||
return $(this).val();
|
||
});
|
||
this.chartConfig.series = $.makeArray(series)
|
||
this.chartConfig.group = this.el.find('.editor-group select').val();
|
||
},
|
||
|
||
createSeries: function () {
|
||
var self = this;
|
||
var series = [];
|
||
if (this.chartConfig) {
|
||
$.each(this.chartConfig.series, function (seriesIndex, field) {
|
||
var points = [];
|
||
$.each(self.model.currentDocuments.models, function (index, doc) {
|
||
var x = doc.get(self.chartConfig.group);
|
||
var y = doc.get(field);
|
||
if (typeof x === 'string') {
|
||
x = index;
|
||
}
|
||
points.push([x, y]);
|
||
});
|
||
series.push({data: points, label: field});
|
||
});
|
||
}
|
||
return series;
|
||
},
|
||
|
||
// Public: Adds a new empty series select box to the editor.
|
||
//
|
||
// All but the first select box will have a remove button that allows them
|
||
// to be removed.
|
||
//
|
||
// Returns itself.
|
||
addSeries: function (e) {
|
||
e.preventDefault();
|
||
var element = this.$seriesClone.clone(),
|
||
label = element.find('label'),
|
||
index = this.$series.length;
|
||
|
||
this.el.find('.editor-series-group').append(element);
|
||
this._updateSeries();
|
||
label.append(' [<a href="#remove" class="action-remove-series">Remove</a>]');
|
||
label.find('span').text(String.fromCharCode(this.$series.length + 64));
|
||
return this;
|
||
},
|
||
|
||
// Public: Removes a series list item from the editor.
|
||
//
|
||
// Also updates the labels of the remaining series elements.
|
||
removeSeries: function (e) {
|
||
e.preventDefault();
|
||
var $el = $(e.target);
|
||
$el.parent().parent().remove();
|
||
this._updateSeries();
|
||
this.$series.each(function (index) {
|
||
if (index > 0) {
|
||
var labelSpan = $(this).prev().find('span');
|
||
labelSpan.text(String.fromCharCode(index + 65));
|
||
}
|
||
});
|
||
this.onEditorSubmit();
|
||
},
|
||
|
||
toggleHelp: function() {
|
||
this.el.find('.editor-info').toggleClass('editor-hide-info');
|
||
},
|
||
|
||
// Private: Resets the series property to reference the select elements.
|
||
//
|
||
// Returns itself.
|
||
_updateSeries: function () {
|
||
this.$series = this.el.find('.editor-series select');
|
||
}
|
||
});
|
||
|
||
return my;
|
||
|
||
}(jQuery);
|
||
|