Daniel@0: "use strict";
Daniel@0: 
Daniel@0: App.module("GraphicsRenderingModule", function(GraphicsRenderingModule, App, Backbone, Marionette, $, _, Logger) {
Daniel@0: 
Daniel@0:     GraphicsRenderingModule.addInitializer(function(options){
Daniel@0: 
Daniel@0:         GraphicsRenderingModule.RendererPrototypes = {};
Daniel@0:         GraphicsRenderingModule.renderers = {};
Daniel@0: 
Daniel@0:         /**
Daniel@0:          * Registers a new renderer
Daniel@0:          */
Daniel@0:         GraphicsRenderingModule.registerRenderer = function(rendererDefinition) {
Daniel@0:             var RendererPrototype;
Daniel@0:             var inheritId = rendererDefinition.inherit ? rendererDefinition.inherit : "";
Daniel@0:             var id = rendererDefinition.id;
Daniel@0:             if (!id) {
Daniel@0:                 throw _.str.sprintf("Renderer definition does not contain an id");
Daniel@0:             }
Daniel@0:             var rendererWithThisId = null;
Daniel@0:             try {
Daniel@0:                 rendererWithThisId = GraphicsRenderingModule.getRendererById(id);
Daniel@0:             } catch (e) {
Daniel@0:             }
Daniel@0:             if (rendererWithThisId) {
Daniel@0:                 throw _.str.sprintf("Renderer with id \"%s\" already exists", id);
Daniel@0:             }
Daniel@0: 
Daniel@0:             var prototypeOptions = {};
Daniel@0:             var prototypeDefaultVegaConfig = {};
Daniel@0:             if (!inheritId) {
Daniel@0:                 RendererPrototype = Marionette.Object;
Daniel@0:             } else {
Daniel@0:                 try {
Daniel@0:                     RendererPrototype = GraphicsRenderingModule.getRendererPrototypeById(inheritId);
Daniel@0:                     var parentRenderer = GraphicsRenderingModule.getRendererById(inheritId);
Daniel@0:                     prototypeOptions = parentRenderer.options;
Daniel@0:                     prototypeDefaultVegaConfig = parentRenderer.defaultVegaConfig;
Daniel@0:                 } catch (e) {
Daniel@0:                     throw _.str.sprintf("Renderer with id \"%s\" could not be inherited from renderer with id \"%s\" (it does not exist)", id, inheritId);
Daniel@0:                 }
Daniel@0:             }
Daniel@0: 
Daniel@0:             var combinedOptions = rendererDefinition.options
Daniel@0:                 ? _.defaults({}, rendererDefinition.options, prototypeOptions)
Daniel@0:                 : _.clone(prototypeOptions);
Daniel@0:             var combinedDefaultVegaConfig = rendererDefinition.defaultVegaConfig
Daniel@0:                 ? _.defaults({}, rendererDefinition.defaultVegaConfig, prototypeDefaultVegaConfig)
Daniel@0:                         : _.clone(prototypeDefaultVegaConfig);
Daniel@0: 
Daniel@0:             for (var key in rendererDefinition.options) {
Daniel@0:                 if (rendererDefinition.options.hasOwnProperty(key) && rendererDefinition.options[key] === undefined) {
Daniel@0:                     delete combinedOptions[key];
Daniel@0:                 }
Daniel@0:             }
Daniel@0:             rendererDefinition.options = combinedOptions;
Daniel@0: 
Daniel@0:             for (var key in rendererDefinition.defaultVegaConfig) {
Daniel@0:                 if (rendererDefinition.defaultVegaConfig.hasOwnProperty(key) && rendererDefinition.defaultVegaConfig[key] === undefined) {
Daniel@0:                     delete combinedDefaultVegaConfig[key];
Daniel@0:                 }
Daniel@0:             }
Daniel@0:             rendererDefinition.defaultVegaConfig = combinedDefaultVegaConfig;
Daniel@0: 
Daniel@0:             var Renderer = RendererPrototype.extend(rendererDefinition);
Daniel@0:             GraphicsRenderingModule.RendererPrototypes[id] = Renderer;
Daniel@0:             GraphicsRenderingModule.renderers[id] = new Renderer();
Daniel@0:         };
Daniel@0: 
Daniel@0:         GraphicsRenderingModule.getRendererPrototypeById = function(id) {
Daniel@0:             var RendererPrototype = GraphicsRenderingModule.RendererPrototypes[id];
Daniel@0:             if (!RendererPrototype) {
Daniel@0:                 throw _.str.sprintf("RendererPrototype with id \"%s\" not found.", id);
Daniel@0:             }
Daniel@0:             return RendererPrototype;
Daniel@0:         };
Daniel@0: 
Daniel@0:         GraphicsRenderingModule.getRendererById = function(id) {
Daniel@0:             var renderer = GraphicsRenderingModule.renderers[id];
Daniel@0:             if (!renderer) {
Daniel@0:                 throw _.str.sprintf("Renderer with id \"%s\" not found.", id);
Daniel@0:             }
Daniel@0:             return renderer;
Daniel@0:         };
Daniel@0: 
Daniel@0:         GraphicsRenderingModule.render = function(id, $element, data, options) {
Daniel@0:             GraphicsRenderingModule.getRendererById(id).render($element, data, options);
Daniel@0:         };
Daniel@0:     });
Daniel@0: }, Logger);