Source: VertexListeners.js
"use strict";
/**
* @classdesc An event listeners wrapper. This is just a set of three listener
* queues (drag, dragStart, dragEnd) and their respective firing
* functions.
*
* @author Ikaros Kappler
* @date 2018-08-27
* @modified 2018-11-28 Added the vertex-param to the constructor and extended the event. Vertex events now have a 'params' attribute object.
* @modified 2019-03-20 Added JSDoc tags.
* @modified 2020-02-22 Added 'return this' to the add* functions (for chanining).
* @modified 2020-03-23 Ported to Typescript from JS.
* @modified 2020-11-17 Added the `click` handler.
* @version 1.1.0
*
* @file VertexListeners
* @public
**/
Object.defineProperty(exports, "__esModule", { value: true });
var VertexListeners = /** @class */ (function () {
/**
* The constructor.
*
* @constructor
* @name VertexListeners
* @param {Vertex} vertex - The vertex to use these listeners on (just a backward reference).
**/
function VertexListeners(vertex) {
this.click = [];
this.drag = [];
this.dragStart = [];
this.dragEnd = [];
this.vertex = vertex;
}
;
/**
* Add a click listener.
*
* @method addClickListener
* @param {VertexListeners~dragListener} listener - The click listener to add (a callback).
* @return {VertexListeners} this (for chaining)
* @instance
* @memberof VertexListeners
**/
VertexListeners.prototype.addClickListener = function (listener) {
VertexListeners._addListener(this.click, listener);
return this;
};
;
/**
* The click listener is a function with a single drag event param.
* @callback VertexListeners~clickListener
* @param {Event} e - The (extended) click event.
*/
/**
* Remove a drag listener.
*
* @method removeDragListener
* @param {VertexListeners~dragListener} listener - The drag listener to remove (a callback).
* @return {VertexListeners} this (for chaining)
* @instance
* @memberof VertexListeners
**/
VertexListeners.prototype.removeClickListener = function (listener) {
this.click = VertexListeners._removeListener(this.click, listener);
return this;
};
;
/**
* The click listener is a function with a single drag event param.
* @callback VertexListeners~clickListener
* @param {Event} e - The (extended) click event.
*/
/**
* Add a drag listener.
*
* @method addDragListener
* @param {VertexListeners~dragListener} listener - The drag listener to add (a callback).
* @return {VertexListeners} this (for chaining)
* @instance
* @memberof VertexListeners
**/
VertexListeners.prototype.addDragListener = function (listener) {
VertexListeners._addListener(this.drag, listener);
return this;
};
;
/**
* The drag listener is a function with a single drag event param.
* @callback VertexListeners~dragListener
* @param {Event} e - The (extended) drag event.
*/
/**
* Remove a drag listener.
*
* @method removeDragListener
* @param {VertexListeners~dragListener} listener - The drag listener to remove (a callback).
* @return {VertexListeners} this (for chaining)
* @instance
* @memberof VertexListeners
**/
VertexListeners.prototype.removeDragListener = function (listener) {
this.drag = VertexListeners._removeListener(this.drag, listener);
return this;
};
;
/**
* Add a dragStart listener.
*
* @method addDragListener
* @param {VertexListeners~dragStartListener} listener - The drag-start listener to add (a callback).
* @return {VertexListeners} this (for chaining)
* @instance
* @memberof VertexListeners
**/
VertexListeners.prototype.addDragStartListener = function (listener) {
VertexListeners._addListener(this.dragStart, listener);
return this;
};
;
/**
* The drag-start listener is a function with a single drag event param.
* @callback VertexListeners~dragStartListener
* @param {Event} e - The (extended) drag event.
*/
/**
* Remove a dragStart listener.
*
* @method addDragStartListener
* @param {VertexListeners~dragListener} listener - The drag listener to remove (a callback).
* @return {VertexListeners} this (for chaining)
* @instance
* @memberof VertexListeners
**/
VertexListeners.prototype.removeDragStartListener = function (listener) {
this.dragStart = VertexListeners._removeListener(this.dragStart, listener);
return this;
};
;
/**
* Add a dragEnd listener.
*
* @method addDragListener
* @param {VertexListeners~dragEndListener} listener - The drag-end listener to add (a callback).
* @return {VertexListeners} this (for chaining)
* @instance
* @memberof VertexListeners
**/
VertexListeners.prototype.addDragEndListener = function (listener) {
// this.dragEnd.push( listener );
VertexListeners._addListener(this.dragEnd, listener);
return this;
};
;
/**
* The drag-end listener is a function with a single drag event param.
* @callback VertexListeners~dragEndListener
* @param {Event} e - The (extended) drag event.
*/
/**
* Remove a drag listener.
*
* @method removeDragEndListener
* @param {VertexListeners~clickListener} listener - The drag listener to remove (a callback).
* @return {VertexListeners} this (for chaining)
* @instance
* @memberof VertexListeners
**/
VertexListeners.prototype.removeDragEndListener = function (listener) {
// this.drag.push( listener );
this.dragEnd = VertexListeners._removeListener(this.dragEnd, listener);
return this;
};
;
/**
* Fire a click event with the given event instance to all
* installed click listeners.
*
* @method fireClickEvent
* @param {VertEvent|XMouseEvent} e - The click event itself to be fired to all installed drag listeners.
* @return {void}
* @instance
* @memberof VertexListeners
**/
VertexListeners.prototype.fireClickEvent = function (e) {
VertexListeners._fireEvent(this, this.click, e);
};
;
/**
* Fire a drag event with the given event instance to all
* installed drag listeners.
*
* @method fireDragEvent
* @param {VertEvent|XMouseEvent} e - The drag event itself to be fired to all installed drag listeners.
* @return {void}
* @instance
* @memberof VertexListeners
**/
VertexListeners.prototype.fireDragEvent = function (e) {
VertexListeners._fireEvent(this, this.drag, e);
};
;
/**
* Fire a dragStart event with the given event instance to all
* installed drag-start listeners.
*
* @method fireDragStartEvent
* @param {VertEvent|XMouseEvent} e - The drag-start event itself to be fired to all installed dragStart listeners.
* @return {void}
* @instance
* @memberof VertexListeners
**/
VertexListeners.prototype.fireDragStartEvent = function (e) {
VertexListeners._fireEvent(this, this.dragStart, e);
};
;
/**
* Fire a dragEnd event with the given event instance to all
* installed drag-end listeners.
*
* @method fireDragEndEvent
* @param {VertEvent|XMouseEvent} e - The drag-end event itself to be fired to all installed dragEnd listeners.
* @return {void}
* @instance
* @memberof VertexListeners
**/
VertexListeners.prototype.fireDragEndEvent = function (e) {
VertexListeners._fireEvent(this, this.dragEnd, e);
};
;
/**
* @private
**/
VertexListeners._fireEvent = function (_self, listeners, e) {
var ve = e;
if (typeof ve.params == 'undefined')
ve.params = { vertex: _self.vertex };
else
ve.params.vertex = _self.vertex;
for (var i in listeners) {
listeners[i](ve);
}
};
;
/**
* @private
*/
VertexListeners._addListener = function (listeners, newListener) {
for (var i in listeners) {
if (listeners[i] == newListener)
return false;
}
listeners.push(newListener);
return true;
};
;
/**
* @private
*/
VertexListeners._removeListener = function (listeners, oldListener) {
for (var i = 0; i < listeners.length; i++) {
if (listeners[i] == oldListener)
return listeners.splice(i, 1);
}
return listeners;
};
;
return VertexListeners;
}());
exports.VertexListeners = VertexListeners;
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