var StandardMouseKeyboard = function(viewer) {
this._enable = true;
this._viewer = viewer;
this._type = 'StandardMouseKeyboard';
this._mouseEventNode = undefined;
this._wheelEventNode = undefined;
this._keyboardEventNode = undefined;
this._eventList = ['mousedown', 'mouseup', 'mouseout', 'mousemove', 'dblclick'];
this._mousePosition = vec2.create();
this._eventBinded = false;
};
var InputSourceMouse = function(canvas, options) {
InputSource.call(this, canvas);
this._defaultRatio = vec2.fromValues(1.0, 1.0);
this._supportedEvents = [
'click',
'contextmenu',
'dblclick',
'mousedown',
'mouseenter',
'mouseleave',
'mousemove',
'mouseover',
'mouseout',
'mouseup'
];
if (!options || options.scrollwheel !== false) {
this._supportedEvents.push('wheel');
}
};