map-model.js

/*jslint forin: true, nomen: true*/
/*global _, MAPJS, observable*/
MAPJS.MapModel = function (layoutCalculatorArg, selectAllTitles, clipboardProvider, defaultReorderMargin) {
  'use strict';
  var self = this,
      layoutCalculator = layoutCalculatorArg,
      reorderMargin = defaultReorderMargin || 20,
      clipboard = clipboardProvider || new MAPJS.MemoryClipboard(),
      analytic,
      currentLayout = {
        nodes: {},
        connectors: {}
      },
      idea,
      currentLabelGenerator,
      isInputEnabled = true,
      isEditingEnabled = true,
      currentlySelectedIdeaId,
      activatedNodes = [],
      setActiveNodes = function (activated) {
        var wasActivated = _.clone(activatedNodes);
        if (activated.length === 0) {
          activatedNodes = [currentlySelectedIdeaId];
        } else {
          activatedNodes = activated;
        }
        self.dispatchEvent('activatedNodesChanged', _.difference(activatedNodes, wasActivated), _.difference(wasActivated, activatedNodes));
      },
      horizontalSelectionThreshold = 300,
      isAddLinkMode,
      applyLabels = function (newLayout) {
        var labelMap;
        if (!currentLabelGenerator) {
          return;
        }
        labelMap = currentLabelGenerator(idea);
        _.each(newLayout.nodes, function (node, id) {
          if (labelMap[id] || labelMap[id] === 0) {
            node.label = labelMap[id];
          }
        });
      },
      updateCurrentLayout = function (newLayout, sessionId) {
        self.getYsy().log.debug("updateCurrentLayout", "redraw");
        self.dispatchEvent('layoutChangeStarting', _.size(newLayout.nodes) - _.size(currentLayout.nodes));
        applyLabels(newLayout);

        _.each(currentLayout.connectors, function (oldConnector, connectorId) {
          var newConnector = newLayout.connectors[connectorId];
          if (!newConnector || newConnector.from !== oldConnector.from || newConnector.to !== oldConnector.to) {
            self.dispatchEvent('connectorRemoved', oldConnector);
          }
        });
        _.each(currentLayout.links, function (oldLink, linkId) {
          var newLink = newLayout.links && newLayout.links[linkId];
          if (!newLink) {
            self.dispatchEvent('linkRemoved', oldLink);
          }
        });
        _.each(currentLayout.nodes, function (oldNode, nodeId) {
          var newNode = newLayout.nodes[nodeId],
              newActive;
          if (!newNode) {
            /*jslint eqeq: true*/
            if (nodeId == currentlySelectedIdeaId) {
              self.selectNode(idea.id);
            }
            newActive = _.reject(activatedNodes, function (e) {
              return e == nodeId;
            });