ffrgb / meshviewer

  function (ClientLayer, LabelLayer, Button, L) {

    'use strict';

    var options = {

      worldCopyJump: true,

      zoomControl: true,

      minZoom: 0

    };

    return function (linkScale, sidebar, buttons) {

      var self = this;

      var savedView;

      var map;

      var layerControl;

      var baseLayers = {};

      function saveView() {

        savedView = {

          center: map.getCenter(),

          zoom: map.getZoom()

        };

      }

      function contextMenuOpenLayerMenu() {

        document.querySelector('.leaflet-control-layers').classList.add('leaflet-control-layers-expanded');

      }

      function setActiveArea(state) {

        map.setActiveArea({

          position: 'absolute',

          left: sidebar.getWidth(state) + 'px',

          right: 0,

          top: 0,

          bottom: 0

        });

      }

      var el = document.createElement('div');

      el.classList.add('map');

      map = L.map(el, options);

      setActiveArea(false);

      var now = new Date();

      config.mapLayers.forEach(function (item, i) {

        if ((typeof item.config.start === 'number' && item.config.start <= now.getHours()) || (typeof item.config.end === 'number' && item.config.end > now.getHours())) {

          item.config.order = item.config.start * -1;

        } else {

          item.config.order = i;

        }

      });

      config.mapLayers = config.mapLayers.sort(function (a, b) {

        return a.config.order - b.config.order;

      });

      var layers = config.mapLayers.map(function (d) {

        return {

          'name': d.name,

          'layer': L.tileLayer(d.url.replace('{retina}', L.Browser.retina ? '@2x' : ''), d.config)

        };

      });

      map.addLayer(layers[0].layer);

      layers.forEach(function (d) {

        baseLayers[d.name] = d.layer;

      });

      var button = new Button(map, buttons);

      map.on('locationfound', button.locationFound);

      map.on('locationerror', button.locationError);

      map.on('dragend', saveView);

      map.on('contextmenu', contextMenuOpenLayerMenu);

      button.init();

      layerControl = L.control.layers(baseLayers, [], { position: 'bottomright' });

      layerControl.addTo(map);

      map.zoomControl.setPosition('topright');

      var clientLayer = new ClientLayer({ minZoom: config.clientZoom });

      clientLayer.addTo(map);

      clientLayer.setZIndex(5);

      var labelLayer = new LabelLayer({ minZoom: config.labelZoom });

      labelLayer.addTo(map);

      labelLayer.setZIndex(6);

      map.on('zoom', function () {

        clientLayer.redraw();

        labelLayer.redraw();

      });

      map.on('baselayerchange', function (e) {

        map.options.maxZoom = e.layer.options.maxZoom;

        clientLayer.options.maxZoom = map.options.maxZoom;

        labelLayer.options.maxZoom = map.options.maxZoom;

        if (map.getZoom() > map.options.maxZoom) {

          map.setZoom(map.options.maxZoom);

        }

        var style = document.querySelector('.css-mode:not([media="not"])');

        if (style && e.layer.options.mode !== '' && !style.classList.contains(e.layer.options.mode)) {

          style.media = 'not';

          labelLayer.updateLayer();

        }

        if (e.layer.options.mode) {

          var newStyle = document.querySelector('.css-mode.' + e.layer.options.mode);

          newStyle.media = '';

          newStyle.appendChild(document.createTextNode(''));

          labelLayer.updateLayer();

        }

      });

      map.on('load', function () {

        var inputs = document.querySelectorAll('.leaflet-control-layers-selector');

        [].forEach.call(inputs, function (input) {

          input.setAttribute('role', 'radiogroup');

          input.setAttribute('aria-label', input.nextSibling.innerHTML.trim());

        });

      });

      var nodeDict = {};

      var linkDict = {};

      var highlight;

      function resetMarkerStyles(nodes, links) {

        Object.keys(nodes).forEach(function (d) {

          nodes[d].resetStyle();

        });

        Object.keys(links).forEach(function (d) {

          links[d].resetStyle();

        });

      }

      function setView(bounds, zoom) {

        map.fitBounds(bounds, { maxZoom: (zoom ? zoom : config.nodeZoom) });

      }

      function goto(m) {

        var bounds;

        if ('getBounds' in m) {

          bounds = m.getBounds();

        } else {

          bounds = L.latLngBounds([m.getLatLng()]);

        }

        setView(bounds);

        return m;

      }

      function updateView(nopanzoom) {

        resetMarkerStyles(nodeDict, linkDict);

        var m;

        if (highlight !== undefined) {

          if (highlight.type === 'node' && nodeDict[highlight.o.node_id]) {

            m = nodeDict[highlight.o.node_id];

            m.setStyle(config.map.highlightNode);

          } else if (highlight.type === 'link' && linkDict[highlight.o.id]) {

            m = linkDict[highlight.o.id];

            m.setStyle(config.map.highlightLink);

          }

        }

        if (!nopanzoom) {

          if (m) {

            goto(m);

          } else if (savedView) {

            map.setView(savedView.center, savedView.zoom);

          } else {

            setView(config.fixedCenter);

          }

        }

      }

      self.setData = function setData(data) {

        nodeDict = {};

        linkDict = {};

        clientLayer.setData(data);

        labelLayer.setData(data, map, nodeDict, linkDict, linkScale);

        updateView(true);

      };

      self.resetView = function resetView() {

        button.disableTracking();

        highlight = undefined;

        updateView();

      };

      self.gotoNode = function gotoNode(d) {

        button.disableTracking();

        highlight = { type: 'node', o: d };

        updateView();

      };

      self.gotoLink = function gotoLink(d) {

        button.disableTracking();

        highlight = { type: 'link', o: d[0] };

        updateView();

      };

      self.gotoLocation = function gotoLocation(d) {

        button.disableTracking();

        map.setView([d.lat, d.lng], d.zoom);

      };

      self.destroy = function destroy() {

        button.clearButtons();

        map.remove();

        if (el.parentNode) {

          el.parentNode.removeChild(el);

        }

      };

      self.render = function render(d) {

        d.appendChild(el);

        map.invalidateSize();

      };

      return self;

    };

  });