mapv
Version:
a library of geography visualization
1 lines • 122 kB
JavaScript
!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?e(exports):"function"==typeof define&&define.amd?define(["exports"],e):e(t.mapv=t.mapv||{})}(this,function(t){"use strict";function E(t){t&&t.clearRect&&t.clearRect(0,0,t.canvas.width,t.canvas.height)}function n(){this._subscribers={}}n.prototype.on=function(t,e){var n=this._subscribers[t];n||(n=[],this._subscribers[t]=n),n.push({callback:e})},n.prototype.off=function(t,e){var n=this._subscribers[t];if(n)for(var i=0;i<n.length;i++)n[i].callback==e&&(n.splice(i,1),i--)},n.prototype._trigger=function(t,e,n){if("*"==t)throw new Error("Cannot trigger event *");var i=[];t in this._subscribers&&(i=i.concat(this._subscribers[t])),"*"in this._subscribers&&(i=i.concat(this._subscribers["*"]));for(var o=0,a=i.length;o<a;o++){var r=i[o];r.callback&&r.callback(t,e,n||null)}};var 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