Daniel@0: "use strict";
Daniel@0: 
Daniel@0: App.module("ContextModule", function(ContextModule, App, Backbone, Marionette, $, _, Logger) {
Daniel@0: 
Daniel@0:     // Define private variables
Daniel@0:     var logger = null;
Daniel@0: 
Daniel@0:     ContextModule.addInitializer(function(options){
Daniel@0: 
Daniel@0:         logger = Logger.get("ContextModule.ConfigGrid");
Daniel@0:         logger.setLevel(Logger.WARN);
Daniel@0: 
Daniel@0:         /**
Daniel@0:          * ConfigGrid stores the configuration of a grid that consists of entityConfigs and viewConfigs
Daniel@0:          * (both are Backbone.Collection of Config)
Daniel@0:          *
Daniel@0:          * In real situation entityConfigs are music collection configs and music recording configs
Daniel@0:          *
Daniel@0:          * two sub-collections can be interacted directly (without proxy methods)
Daniel@0:          *
Daniel@0:          * The grid can be given a read-only type on creation in order to easily to distinguish between collection and recording grid later
Daniel@0:          * getType() method is available for this purpose. The type of the grid is not being serialized or unserialized
Daniel@0:          *
Daniel@0:          * The following events are triggered:
Daniel@0:          *
Daniel@0:          *      change_layout
Daniel@0:          *          when both or any of the two collections of Config gets new objects, looses objects or shuffles
Daniel@0:          *          (but not when parameters in individual parameter bags change)
Daniel@0:          *
Daniel@0:          *      change_entity:c123
Daniel@0:          *      change_view:c123
Daniel@0:          *          when a particular parameter bag changes (c123 is replaced with a corresponding client id of an entity or a view)
Daniel@0:          *
Daniel@0:          *      change_entity_neighbours:c123
Daniel@0:          *      change_view_neighbours:c123
Daniel@0:          *          when a Config, which is right before or right after the given parameter bag, changes
Daniel@0:          *          This includes cases when neighbours are added or removed
Daniel@0:          *
Daniel@0:          *      change_selection
Daniel@0:          *          when selectedEntityConfigClientId or (and) selectedViewConfigClientId change
Daniel@0:          *
Daniel@0:          *      change
Daniel@0:          *          this event is triggered together with any of the above ones, but
Daniel@0:          *          maximum once during a complex operation such as unserialize
Daniel@0:          */
Daniel@0:         ContextModule.ConfigGrid = Backbone.Model.extend({
Daniel@0:             defaults: {
Daniel@0:                 entityConfigs: null,
Daniel@0:                 viewConfigs: null,
Daniel@0:                 selectedEntityConfigClientId: null,
Daniel@0:                 selectedViewConfigClientId: null
Daniel@0:             },
Daniel@0: 
Daniel@0:             /**
Daniel@0:              * @memberOf App.ContextModule.ConfigGrid
Daniel@0:              */
Daniel@0:             initialize: function(type) {
Daniel@0: 
Daniel@0:                 this.type = type;
Daniel@0: 
Daniel@0:                 this.attributes.entityConfigs = new ContextModule.ConfigCollection(null, {
Daniel@0:                     comparator: false,
Daniel@0:                     configGridType: type,
Daniel@0:                     dimension: "entity",
Daniel@0:                 });
Daniel@0:                 this.attributes.viewConfigs = new ContextModule.ConfigCollection(null, {
Daniel@0:                     comparator: false,
Daniel@0:                     configGridType: type,
Daniel@0:                     dimension: "view",
Daniel@0:                 });
Daniel@0: 
Daniel@0:                 // Shortcuts for entity configs and view configs (for quicker access)
Daniel@0:                 this.entityConfigs = this.attributes.entityConfigs;
Daniel@0:                 this.viewConfigs = this.attributes.viewConfigs;
Daniel@0: 
Daniel@0:                 this._modificationPropagationEnabled = true;
Daniel@0:                 this._configCollectionsWereModified = false;
Daniel@0:                 this._configsWereModified = false;
Daniel@0:                 this._modifiedEntityConfigClientIds = [];
Daniel@0:                 this._modifiedViewConfigClientIds = [];
Daniel@0:                 this._lastSavedOrderedEntityClientIds = _.pluck(this.attributes.entityConfigs.models, "cid");
Daniel@0:                 this._lastSavedOrderedViewClientIds = _.pluck(this.attributes.viewConfigs.models, "cid");
Daniel@0:                 this._lastSavedSelectedEntityConfigClientId = this.attributes.selectedEntityConfigClientId;
Daniel@0:                 this._lastSavedSelectedViewConfigClientId = this.attributes.selectedViewConfigClientId;
Daniel@0: 
Daniel@0:                 this.entityConfigs.bind("add remove reset sort", this._registerModificationOfConfigCollectionForEntities, this);
Daniel@0:                 this.viewConfigs.bind("add remove reset sort", this._registerModificationOfConfigCollectionForViews, this);
Daniel@0: 
Daniel@0:                 this.entityConfigs.bind("change", this._registerModificationOfConfig, this);
Daniel@0:                 this.viewConfigs.bind("change", this._registerModificationOfConfig, this);
Daniel@0: 
Daniel@0:                 this.bind("change:selectedEntityConfigClientId", this._registerModificationOfAtomicProperty);
Daniel@0:                 this.bind("change:selectedViewConfigClientId", this._registerModificationOfAtomicProperty);
Daniel@0:                 this.bind("change:entityWidth", this._registerModificationOfStandardAtomicProperty);
Daniel@0:             },
Daniel@0: 
Daniel@0:             /**
Daniel@0:              * @memberOf App.ContextModule.ConfigGrid
Daniel@0:              */
Daniel@0:             getType: function() {
Daniel@0:                 return this.type;
Daniel@0:             },
Daniel@0: 
Daniel@0:             /**
Daniel@0:              * @memberOf App.ContextModule.ConfigGrid
Daniel@0:              */
Daniel@0:             getPrevEntityNeighbour: function(entityConfig) {
Daniel@0:                 return this._getNeighbour(this.attributes.entityConfigs, entityConfig, -1);
Daniel@0:             },
Daniel@0: 
Daniel@0:             /**
Daniel@0:              * @memberOf App.ContextModule.ConfigGrid
Daniel@0:              */
Daniel@0:             getNextEntityNeighbour: function(entityConfig) {
Daniel@0:                 return this._getNeighbour(this.attributes.entityConfigs, entityConfig, 1);
Daniel@0:             },
Daniel@0: 
Daniel@0:             /**
Daniel@0:              * @memberOf App.ContextModule.ConfigGrid
Daniel@0:              */
Daniel@0:             getPrevViewNeighbour: function(viewConfig) {
Daniel@0:                 return this._getNeighbour(this.attributes.viewConfigs, viewConfig, -1);
Daniel@0:             },
Daniel@0: 
Daniel@0:             /**
Daniel@0:              * @memberOf App.ContextModule.ConfigGrid
Daniel@0:              */
Daniel@0:             getNextViewNeighbour: function(viewConfig) {
Daniel@0:                 return this._getNeighbour(this.attributes.viewConfigs, viewConfig, 1);
Daniel@0:             },
Daniel@0: 
Daniel@0:             /**
Daniel@0:              * @memberOf App.ContextModule.ConfigGrid
Daniel@0:              */
Daniel@0:             relocateEntityConfig: function(entityConfig, indexOrNextConfigOrNextConfigClientId) {
Daniel@0:                 return this._relocate(this.attributes.entityConfigs, entityConfig, indexOrNextConfigOrNextConfigClientId);
Daniel@0:             },
Daniel@0: 
Daniel@0:             /**
Daniel@0:              * @memberOf App.ContextModule.ConfigGrid
Daniel@0:              */
Daniel@0:             relocateViewConfig: function(viewConfig, indexOrNextConfigOrNextConfigClientId) {
Daniel@0:                 return this._relocate(this.attributes.viewConfigs, viewConfig, indexOrNextConfigOrNextConfigClientId);
Daniel@0:             },
Daniel@0: 
Daniel@0:             /**
Daniel@0:              * @memberOf App.ContextModule.ConfigGrid
Daniel@0:              */
Daniel@0:             serialize: function() {
Daniel@0:                 logger.debug("method called: ConfigGrid::serialize");
Daniel@0:                 var _this = this;
Daniel@0: 
Daniel@0:                 var result = {
Daniel@0:                         entityConfigs: this.attributes.entityConfigs.map(function(config){ return config.serialize(); }),
Daniel@0:                         viewConfigs: this.attributes.viewConfigs.map(function(config){ return config.serialize(); })
Daniel@0:                 };
Daniel@0: 
Daniel@0:                 if (this.attributes.selectedEntityConfigClientId) {
Daniel@0:                     result.selectedEntityConfigClientId = this.attributes.selectedEntityConfigClientId;
Daniel@0:                 }
Daniel@0:                 if (this.attributes.selectedViewConfigClientId) {
Daniel@0:                     result.selectedViewConfigClientId = this.attributes.selectedViewConfigClientId;
Daniel@0:                 }
Daniel@0:                 if (this.attributes.entityWidth) {
Daniel@0:                     result.entityWidth = this.attributes.entityWidth;
Daniel@0:                 }
Daniel@0: 
Daniel@0:                 return result;
Daniel@0:             },
Daniel@0: 
Daniel@0:             getSelectedEntityConfig: function() {
Daniel@0:                 return this.attributes.entityConfigs.get(this.attributes.selectedEntityConfigClientId);
Daniel@0:             },
Daniel@0: 
Daniel@0:             getSelectedViewConfig: function() {
Daniel@0:                 return this.attributes.viewConfigs.get(this.attributes.selectedViewConfigClientId);
Daniel@0:             },
Daniel@0: 
Daniel@0: //            getSelectedConfigAtGivenDimension: function(dimension) {
Daniel@0: //                if (dimension == "entity") {
Daniel@0: //                    return this.getSelectedEntityConfig();
Daniel@0: //                } else if (dimension == "view") {
Daniel@0: //                    return this.getSelectedViewConfig();
Daniel@0: //                }
Daniel@0: //            },
Daniel@0: //
Daniel@0:             addEntityAndSelectIt: function(entityConfig, indexOrNextConfigOrNextConfigClientId) {
Daniel@0:                 this._addAndSelect(this.attributes.entityConfigs, entityConfig, _.isUndefined(indexOrNextConfigOrNextConfigClientId) ? null : indexOrNextConfigOrNextConfigClientId);
Daniel@0:             },
Daniel@0: 
Daniel@0:             addViewAndSelectIt: function(viewConfig, indexOrNextConfigOrNextConfigClientId) {
Daniel@0:                 this._addAndSelect(this.attributes.viewConfigs, viewConfig, _.isUndefined(indexOrNextConfigOrNextConfigClientId) ? null : indexOrNextConfigOrNextConfigClientId);
Daniel@0:             },
Daniel@0: 
Daniel@0:             removeEntityAndSelectNeighbour: function(entityConfig) {
Daniel@0:                 this._removeAndSelectNeighbour(this.attributes.entityConfigs, entityConfig);
Daniel@0:             },
Daniel@0: 
Daniel@0:             removeViewAndSelectNeighbour: function(viewConfig) {
Daniel@0:                 this._removeAndSelectNeighbour(this.attributes.viewConfigs, viewConfig);
Daniel@0:             },
Daniel@0: 
Daniel@0:             _addAndSelect: function(configCollection, config, indexOrNextConfigOrNextConfigClientId) {
Daniel@0:                 this._modificationPropagationEnabled = false;
Daniel@0: 
Daniel@0:                 configCollection.add(config);
Daniel@0:                 if (configCollection == this.attributes.entityConfigs) {
Daniel@0:                     this.attributes.selectedEntityConfigClientId = config.getClientId();
Daniel@0:                 } else {
Daniel@0:                     this.attributes.selectedViewConfigClientId = config.getClientId();
Daniel@0:                 }
Daniel@0:                 this._relocate(configCollection, config, indexOrNextConfigOrNextConfigClientId);
Daniel@0: 
Daniel@0:                 this._triggerModificationEventsIfNeeded();
Daniel@0:                 this._modificationPropagationEnabled = true;
Daniel@0: 
Daniel@0:             },
Daniel@0: 
Daniel@0:             _removeAndSelectNeighbour: function(configCollection, config) {
Daniel@0:                 this._modificationPropagationEnabled = false;
Daniel@0: 
Daniel@0:                 var neighbourToSelect = this._getNeighbour(configCollection, config, 1);
Daniel@0:                 if (!neighbourToSelect) {
Daniel@0:                     neighbourToSelect = this._getNeighbour(configCollection, config, -1);
Daniel@0:                 }
Daniel@0:                 configCollection.remove(config);
Daniel@0:                 if (configCollection == this.attributes.entityConfigs) {
Daniel@0:                     this.attributes.selectedEntityConfigClientId = neighbourToSelect ? neighbourToSelect.getClientId() : null;
Daniel@0:                 } else {
Daniel@0:                     this.attributes.selectedViewConfigClientId = neighbourToSelect ? neighbourToSelect.getClientId() : null;
Daniel@0:                 }
Daniel@0: 
Daniel@0:                 this._triggerModificationEventsIfNeeded();
Daniel@0:                 this._modificationPropagationEnabled = true;
Daniel@0: 
Daniel@0:             },
Daniel@0: 
Daniel@0:             /**
Daniel@0:              * @memberOf App.ContextModule.ConfigGrid
Daniel@0:              */
Daniel@0:             unserialize: function(serializedAttributes) {
Daniel@0:                 logger.debug("method called: ConfigGrid::unserialize");
Daniel@0: 
Daniel@0:                 this._modificationPropagationEnabled = false;
Daniel@0: 
Daniel@0:                 var fixedSerializedAttributes = serializedAttributes;
Daniel@0:                 if (!_.isSimpleObject(serializedAttributes)) {
Daniel@0:                     logger.warn("ConfigGrid::unserialize called for not an object: ", serializedAttributes);
Daniel@0:                     fixedSerializedAttributes = {};
Daniel@0:                 }
Daniel@0: 
Daniel@0:                 // entityConfigs
Daniel@0:                 var newConfigs = [];
Daniel@0:                 var fixedSerializedConfigs = fixedSerializedAttributes.entityConfigs;
Daniel@0:                 if (!_.isArray(fixedSerializedConfigs)) {
Daniel@0:                     if (_.isSimpleObject(serializedAttributes)) {
Daniel@0:                         logger.warn("ConfigGrid::unserialize called for an object with faulty entityConfigs: ", fixedSerializedConfigs);
Daniel@0:                     }
Daniel@0:                     fixedSerializedConfigs = [];
Daniel@0:                 };
Daniel@0:                 for (var i = 0; i < fixedSerializedConfigs.length; i++) {
Daniel@0:                     var serializedConfig = fixedSerializedConfigs[i];
Daniel@0:                     var config = this.attributes.entityConfigs.get(serializedConfig.clientId);
Daniel@0:                     if (!config) {
Daniel@0:                         config = new App.ContextModule.Config(serializedConfig);
Daniel@0:                     } else {
Daniel@0:                         config.unserialize(serializedConfig);
Daniel@0:                     }
Daniel@0:                     newConfigs.push(config);
Daniel@0:                 }
Daniel@0:                 this.attributes.entityConfigs.reset(newConfigs);
Daniel@0: 
Daniel@0:                 // viewConfigs
Daniel@0:                 var newConfigs = [];
Daniel@0:                 var fixedSerializedConfigs = fixedSerializedAttributes.viewConfigs;
Daniel@0:                 if (!_.isArray(fixedSerializedConfigs)) {
Daniel@0:                     if (_.isSimpleObject(serializedAttributes)) {
Daniel@0:                         logger.warn("ConfigGrid::unserialize called for an object with faulty viewConfigs: ", fixedSerializedConfigs);
Daniel@0:                     }
Daniel@0:                     fixedSerializedConfigs = [];
Daniel@0:                 };
Daniel@0:                 for (var i = 0; i < fixedSerializedConfigs.length; i++) {
Daniel@0:                     var serializedConfig = fixedSerializedConfigs[i];
Daniel@0:                     var config = this.attributes.viewConfigs.get(serializedConfig.clientId);
Daniel@0:                     if (!config) {
Daniel@0:                         config = new App.ContextModule.Config(serializedConfig);
Daniel@0:                     } else {
Daniel@0:                         config.unserialize(serializedConfig);
Daniel@0:                     }
Daniel@0:                     newConfigs.push(config);
Daniel@0:                 }
Daniel@0:                 this.attributes.viewConfigs.reset(newConfigs);
Daniel@0: 
Daniel@0:                 // selectedEntityConfigClientId, selectedViewConfigClientId
Daniel@0:                 this.attributes.selectedEntityConfigClientId = fixedSerializedAttributes.selectedEntityConfigClientId;
Daniel@0:                 this.attributes.selectedViewConfigClientId = fixedSerializedAttributes.selectedViewConfigClientId;
Daniel@0: 
Daniel@0:                 this.attributes.entityWidth = fixedSerializedAttributes.entityWidth;
Daniel@0: 
Daniel@0:                 this._triggerModificationEventsIfNeeded();
Daniel@0:                 this._modificationPropagationEnabled = true;
Daniel@0:             },
Daniel@0: 
Daniel@0:             _getNeighbour: function(configCollection, config, offset) {
Daniel@0:                 var index = configCollection.indexOf(config);
Daniel@0:                 if (index === -1) {
Daniel@0:                     throw _.str.sprintf("Can't find config %s", JSON.stringify(config.serialize()));
Daniel@0:                 }
Daniel@0:                 return configCollection.at(index + offset);
Daniel@0:             },
Daniel@0: 
Daniel@0:             _relocate: function(configCollection, config, indexOrNextConfigOrNextConfigClientId) {
Daniel@0:                 var clientIds = _.pluck(configCollection.models, "cid");
Daniel@0:                 var nextConfigClientId = null;
Daniel@0: 
Daniel@0:                 if (_.isNumber(indexOrNextConfigOrNextConfigClientId) && indexOrNextConfigOrNextConfigClientId != clientIds.length) {
Daniel@0:                     nextConfigClientId = clientIds[indexOrNextConfigOrNextConfigClientId];
Daniel@0:                 }
Daniel@0:                 if (_.isObject(indexOrNextConfigOrNextConfigClientId)) {
Daniel@0:                     nextConfigClientId = indexOrNextConfigOrNextConfigClientId.getClientId();
Daniel@0:                 }
Daniel@0:                 if (_.isString(indexOrNextConfigOrNextConfigClientId)) {
Daniel@0:                     if (clientIds.indexOf(indexOrNextConfigOrNextConfigClientId) !== -1) {
Daniel@0:                         nextConfigClientId = indexOrNextConfigOrNextConfigClientId;
Daniel@0:                     }
Daniel@0:                 }
Daniel@0:                 if (!nextConfigClientId && !_.isNull(indexOrNextConfigOrNextConfigClientId) && indexOrNextConfigOrNextConfigClientId != configCollection.size()) {
Daniel@0:                     throw _.str.sprintf("Wrong value for indexOrNextConfigOrNextConfigClientId %s", indexOrNextConfigOrNextConfigClientId);
Daniel@0:                 }
Daniel@0: 
Daniel@0:                 var configClientId = config.getClientId();
Daniel@0:                 if (!configClientId || clientIds.indexOf(configClientId) == -1) {
Daniel@0:                     var flattenedConfig = config;
Daniel@0:                     if (_.isObject(flattenedConfig)) {
Daniel@0:                         flattenedConfig = JSON.stringify(flattenedConfig);
Daniel@0:                     }
Daniel@0:                     throw _.str.sprintf("Config %s with cid %s is either not a Config or does not belong to a corresponding configCollection with cids [%s]", flattenedConfig, _.isObject(config ) ? config.getClientId() : undefined, clientIds.join(", "));
Daniel@0:                 }
Daniel@0:                 if (configCollection.get(configClientId) !== config) {
Daniel@0:                     throw _.str.sprintf("Config %s with cid %s is is a clone of what is stored in the grid. Relocation is not possible.", JSON.stringify(config), config.cid);
Daniel@0:                 }
Daniel@0:                 var newClientIds = _.without(clientIds, configClientId);
Daniel@0:                 if (_.isNull(nextConfigClientId)) {
Daniel@0:                     newClientIds.push(configClientId);
Daniel@0:                 } else {
Daniel@0:                     var nextConfigIndex = newClientIds.indexOf(nextConfigClientId);
Daniel@0:                     //if (nextConfigIndex)
Daniel@0:                     var tempClientIds = newClientIds.slice(0, nextConfigIndex);
Daniel@0:                     tempClientIds.push(configClientId);
Daniel@0:                     newClientIds = tempClientIds.concat(newClientIds.slice(nextConfigIndex));
Daniel@0:                 }
Daniel@0: 
Daniel@0:                 var oldComparator = configCollection.comparator;
Daniel@0:                 configCollection.comparator = function(model) {
Daniel@0:                     return newClientIds.indexOf(model.getClientId());
Daniel@0:                 };
Daniel@0:                 configCollection.sort();
Daniel@0:                 configCollection.comparator = oldComparator;
Daniel@0:             },
Daniel@0: 
Daniel@0:             _registerModificationOfConfigCollectionForEntities: function(modelOrModels, options) {
Daniel@0:                 if (!_.isEqual(this._lastSavedOrderedEntityClientIds, _.pluck(this.attributes.entityConfigs.models, "cid"))) {
Daniel@0:                     this._configCollectionsWereModified = true;
Daniel@0:                     if (this._modificationPropagationEnabled) {
Daniel@0:                         this._triggerModificationEventsIfNeeded();
Daniel@0:                     };
Daniel@0:                 }
Daniel@0:             },
Daniel@0: 
Daniel@0:             _registerModificationOfConfigCollectionForViews: function(modelOrModels, options) {
Daniel@0:                 if (!_.isEqual(this._lastSavedOrderedViewClientIds, _.pluck(this.attributes.viewConfigs.models, "cid"))) {
Daniel@0:                     this._configCollectionsWereModified = true;
Daniel@0:                     if (this._modificationPropagationEnabled) {
Daniel@0:                         this._triggerModificationEventsIfNeeded();
Daniel@0:                     };
Daniel@0:                 }
Daniel@0:             },
Daniel@0: 
Daniel@0:             _registerModificationOfConfig: function() {
Daniel@0:                 for (var i = 0; i < this.attributes.entityConfigs.length; i++) {
Daniel@0:                     if(this.attributes.entityConfigs.at(i).hasChanged()) {
Daniel@0:                         this._configsWereModified = true;
Daniel@0:                         this._modifiedEntityConfigClientIds.push(this.attributes.entityConfigs.at(i).getClientId());
Daniel@0:                     }
Daniel@0:                 }
Daniel@0:                 for (var i = 0; i < this.attributes.viewConfigs.length; i++) {
Daniel@0:                     if(this.attributes.viewConfigs.at(i).hasChanged()) {
Daniel@0:                         this._configsWereModified = true;
Daniel@0:                         this._modifiedViewConfigClientIds.push(this.attributes.viewConfigs.at(i).getClientId());
Daniel@0:                     }
Daniel@0:                 }
Daniel@0:                 if (this._modificationPropagationEnabled) {
Daniel@0:                     this._triggerModificationEventsIfNeeded();
Daniel@0:                 };
Daniel@0:             },
Daniel@0: 
Daniel@0:             _registerModificationOfAtomicProperty: function() {
Daniel@0:                 if (this._modificationPropagationEnabled) {
Daniel@0:                     this._triggerModificationEventsIfNeeded(true);
Daniel@0:                 };
Daniel@0:             },
Daniel@0: 
Daniel@0:             _registerModificationOfStandardAtomicProperty: function() {
Daniel@0:                 if (this._modificationPropagationEnabled) {
Daniel@0:                     this._triggerModificationEventsIfNeeded();
Daniel@0:                 };
Daniel@0:             },
Daniel@0: 
Daniel@0:             _triggerModificationEventsIfNeeded: function(specialCaseForRegisterModificationOfSelection) {
Daniel@0: 
Daniel@0:                 var triggeredAtLeastSomething = false;
Daniel@0:                 if (this._configCollectionsWereModified) {
Daniel@0:                     triggeredAtLeastSomething = true;
Daniel@0:                     this.trigger("change_layout");
Daniel@0:                 }
Daniel@0: 
Daniel@0:                 var newOrderedEntityClientIds = null;
Daniel@0:                 var newOrderedViewClientIds = null;
Daniel@0:                 if (this._configCollectionsWereModified || this._modifiedEntityConfigClientIds.length || this._modifiedViewConfigClientIds.length) {
Daniel@0:                     newOrderedEntityClientIds = _.pluck(this.attributes.entityConfigs.models, "cid");
Daniel@0:                     newOrderedViewClientIds = _.pluck(this.attributes.viewConfigs.models, "cid");
Daniel@0: 
Daniel@0:                     // change_entity:c123
Daniel@0:                     if (this._modifiedEntityConfigClientIds.length) {
Daniel@0:                         for (var i = 0; i < newOrderedEntityClientIds.length; i++) {
Daniel@0:                             if (_.indexOf(this._modifiedEntityConfigClientIds, newOrderedEntityClientIds[i]) !== -1) {
Daniel@0:                                 triggeredAtLeastSomething = true;
Daniel@0:                                 this.trigger("change_entity:" + newOrderedEntityClientIds[i]);
Daniel@0:                             }
Daniel@0:                         }
Daniel@0:                     }
Daniel@0:                     // change_view:c123
Daniel@0:                     if (this._modifiedViewConfigClientIds.length) {
Daniel@0:                         for (var i = 0; i < newOrderedViewClientIds.length; i++) {
Daniel@0:                             if (_.indexOf(this._modifiedViewConfigClientIds, newOrderedViewClientIds[i]) !== -1) {
Daniel@0:                                 triggeredAtLeastSomething = true;
Daniel@0:                                 this.trigger("change_view:" + newOrderedViewClientIds[i]);
Daniel@0:                             }
Daniel@0:                         }
Daniel@0:                     }
Daniel@0: 
Daniel@0:                     // change_entity_neighbours:c123
Daniel@0:                     for (var i = 0; i < newOrderedEntityClientIds.length; i++) {
Daniel@0:                         var entityClientId = newOrderedEntityClientIds[i];
Daniel@0:                         var oldEntityIndex = this._lastSavedOrderedEntityClientIds.indexOf(entityClientId);
Daniel@0:                         if (oldEntityIndex == -1) {
Daniel@0:                             continue;
Daniel@0:                         }
Daniel@0:                         var newPrevEntityClientId = newOrderedEntityClientIds[i - 1];
Daniel@0:                         var newNextEntityClientId = newOrderedEntityClientIds[i + 1];
Daniel@0:                         var oldPrevEntityClientId = this._lastSavedOrderedEntityClientIds[oldEntityIndex - 1];
Daniel@0:                         var oldNextEntityClientId = this._lastSavedOrderedEntityClientIds[oldEntityIndex + 1];
Daniel@0: 
Daniel@0:                         if (newPrevEntityClientId != oldPrevEntityClientId
Daniel@0:                          || newNextEntityClientId != oldNextEntityClientId
Daniel@0:                          || this._modifiedEntityConfigClientIds.indexOf(newPrevEntityClientId) !== -1
Daniel@0:                          || this._modifiedEntityConfigClientIds.indexOf(newNextEntityClientId) !== -1
Daniel@0:                          ) {
Daniel@0:                             triggeredAtLeastSomething = true;
Daniel@0:                             this.trigger("change_entity_neighbours:" + entityClientId);
Daniel@0:                         };
Daniel@0:                     }
Daniel@0: 
Daniel@0:                     // change_view_neighbours:c123
Daniel@0:                     for (var i = 0; i < newOrderedViewClientIds.length; i++) {
Daniel@0:                         var viewClientId = newOrderedViewClientIds[i];
Daniel@0:                         var oldViewIndex = this._lastSavedOrderedViewClientIds.indexOf(viewClientId);
Daniel@0:                         if (oldViewIndex == -1) {
Daniel@0:                             continue;
Daniel@0:                         }
Daniel@0:                         var newPrevViewClientId = newOrderedViewClientIds[i - 1];
Daniel@0:                         var newNextViewClientId = newOrderedViewClientIds[i + 1];
Daniel@0:                         var oldPrevViewClientId = this._lastSavedOrderedViewClientIds[oldViewIndex - 1];
Daniel@0:                         var oldNextViewClientId = this._lastSavedOrderedViewClientIds[oldViewIndex + 1];
Daniel@0: 
Daniel@0:                         if (newPrevViewClientId != oldPrevViewClientId
Daniel@0:                          || newNextViewClientId != oldNextViewClientId
Daniel@0:                          || this._modifiedViewConfigClientIds.indexOf(newPrevViewClientId) !== -1
Daniel@0:                          || this._modifiedViewConfigClientIds.indexOf(newNextViewClientId) !== -1
Daniel@0:                          ) {
Daniel@0:                             triggeredAtLeastSomething = true;
Daniel@0:                             this.trigger("change_view_neighbours:" + viewClientId);
Daniel@0:                         };
Daniel@0:                     };
Daniel@0:                 }
Daniel@0: 
Daniel@0:                 this._lastSavedOrderedEntityClientIds = _.pluck(this.attributes.entityConfigs.models, "cid");
Daniel@0:                 this._lastSavedOrderedViewClientIds = _.pluck(this.attributes.viewConfigs.models, "cid");
Daniel@0: 
Daniel@0:                 // Fix selection
Daniel@0:                 if (!this.attributes.entityConfigs.get(this.attributes.selectedEntityConfigClientId)) {
Daniel@0:                     this.attributes.selectedEntityConfigClientId = null;
Daniel@0:                 }
Daniel@0:                 if (!this.attributes.viewConfigs.get(this.attributes.selectedViewConfigClientId)) {
Daniel@0:                     this.attributes.selectedViewConfigClientId = null;
Daniel@0:                 }
Daniel@0:                 if (this._lastSavedSelectedEntityConfigClientId  != this.attributes.selectedEntityConfigClientId
Daniel@0:                  || this._lastSavedSelectedViewConfigClientId  != this.attributes.selectedViewConfigClientId
Daniel@0:                     ) {
Daniel@0:                     if (!specialCaseForRegisterModificationOfSelection) {
Daniel@0:                         triggeredAtLeastSomething = true;
Daniel@0:                     }
Daniel@0:                     this.trigger("change_selection");
Daniel@0:                 }
Daniel@0: 
Daniel@0:                 if (this._lastSavedEntityWidth  != this.attributes.entityWidth) {
Daniel@0:                     triggeredAtLeastSomething = true;
Daniel@0:                 }
Daniel@0: 
Daniel@0:                 this._configCollectionsWereModified = false;
Daniel@0:                 this._configsWereModified = false;
Daniel@0:                 this._selectionWasModified = false;
Daniel@0:                 this._modifiedEntityConfigClientIds = [];
Daniel@0:                 this._modifiedViewConfigClientIds = [];
Daniel@0:                 this._lastSavedSelectedEntityConfigClientId  = this.attributes.selectedEntityConfigClientId;
Daniel@0:                 this._lastSavedSelectedViewConfigClientId    = this.attributes.selectedViewConfigClientId;
Daniel@0:                 this._lastSavedEntityWidth    = this.attributes.entityWidth;
Daniel@0: 
Daniel@0:                 if (triggeredAtLeastSomething) {
Daniel@0:                     this.trigger("change");
Daniel@0:                 }
Daniel@0:             },
Daniel@0:         });
Daniel@0:     });
Daniel@0: }, Logger);