vendor/assets/leaflet/leaflet.pan.js

   1 L.Control.Pan = L.Control.extend({
   2         options: {
   3                 position: 'topleft',
   4                 panOffset: 500
   5         },
   6
   7         onAdd: function (map) {
   8                 var className = 'leaflet-control-pan',
   9                         container = L.DomUtil.create('div', className),
  10                         off = this.options.panOffset;
  11
  12                 this._panButton('Up'   , className + '-up'
  13                                                 , container, map, new L.Point(    0 , -off));
  14                 this._panButton('Left' , className + '-left'
  15                                                 , container, map, new L.Point( -off ,  0));
  16                 this._panButton('Right', className + '-right'
  17                                                 , container, map, new L.Point(  off ,  0));
  18                 this._panButton('Down' , className + '-down'
  19                                                 , container, map, new L.Point(    0 ,  off));
  20
  21                 return container;
  22         },
  23
  24         _panButton: function (title, className, container, map, offset, text) {
  25                 var wrapper = L.DomUtil.create('div', className + "-wrap", container);
  26                 var link = L.DomUtil.create('a', className, wrapper);
  27                 link.href = '#';
  28                 link.title = title;
  29                 L.DomEvent
  30                         .on(link, 'click', L.DomEvent.stopPropagation)
  31                         .on(link, 'click', L.DomEvent.preventDefault)
  32                         .on(link, 'click', function(){ map.panBy(offset); }, map)
  33                         .on(link, 'dblclick', L.DomEvent.stopPropagation)
  34
  35                 return link;
  36         }
  37 });
  38
  39 L.Map.mergeOptions({
  40     panControl: true
  41 });
  42
  43 L.Map.addInitHook(function () {
  44     if (this.options.panControl) {
  45                 this.panControl = new L.Control.Pan();
  46                 this.addControl(this.panControl);
  47         }
  48 });
  49
  50 L.control.pan = function (options) {
  51     return new L.Control.Pan(options);
  52 };