@open-e/oe-coordinator
Version:
This module is used to detect mouse movement on the border of HTMLElement. Useful usecase is to enable resize event in `div` element when mouse is on the border of it.
166 lines • 13.8 kB
JavaScript
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
import { DEFAULT } from "../config";
import { ClickEvent } from "./utilities/click.component";
import { ClassEvent } from "./utilities/class.component";
export var PublicAPI;
(function (PublicAPI) {
PublicAPI.ClassBehavior = ClassEvent;
PublicAPI.ClickBehavior = ClickEvent;
class CoordinateComponent {
// variation to detect on border
/**
* @param {?} element
*/
constructor(element) {
this.element = element;
this._variation = DEFAULT.variation; // variation to detect on border
this._element = element;
this.setCoordinates();
this.addListener("mousemove");
this.addListener("mousedown");
this.addListener("mouseup");
this.detectMouseUpOutSide();
}
/**
* Return coordinates
* @return {?}
*/
getCoordinates() {
return this._coordinates;
}
/**
* Detect when module is on border of element
* @return {?}
*/
onBorder() {
return this._onBorder;
}
/**
* Detect hen drag starts
* @return {?}
*/
onDragStart() {
return this._isDrag;
}
/**
* addEventListener to detect when on border
*
* @param {?} name 'mousedown' | 'mouseup' | 'mouseover'
* @return {?}
*/
addListener(name) {
this._element.addEventListener(name, (/**
* @param {?} mouse
* @return {?}
*/
(mouse) => {
this.detectOnborder(mouse);
this.detectOnDragStart(name, mouse);
}));
}
/**
* Set variation to detect mouse on border
*
* @param {?} value
* @return {?}
*/
setVariation(value) {
this._variation = value;
}
/**
* calculate current coordinate of HTMlelement
*
* @private
* @return {?}
*/
setCoordinates() {
return (this._coordinates = Object.assign(this.element.getBoundingClientRect(), {
clientWidth: this.element.clientWidth,
clientHeight: this.element.clientHeight
}));
}
/**
* Private method to assign drag start
*
* @private
* @param {?} name
* @param {?} mouse
* @return {?}
*/
detectOnDragStart(name, mouse) {
if (Object.values(this._onBorder).indexOf(true) != -1 &&
["mousedown"].includes(name)) {
this._isDrag = true;
}
else if (this._isDrag && ["mousedown", "mousemove"].includes(name)) {
this._isDrag = true;
}
else {
this._isDrag = false;
}
}
/**
* detect when mouse click is on border
*
* @private
* @param {?} mouse
* @return {?}
*/
detectOnborder(mouse) {
this._onBorder = Object.assign(this._onBorder ? this._onBorder : {}, {
left: mouse.offsetX < 0 + this._variation,
right: mouse.offsetX >
((/** @type {?} */ (mouse.target))).clientWidth - this._variation,
top: mouse.offsetY < 0 + this._variation,
bottom: mouse.offsetY >
((/** @type {?} */ (mouse.target))).clientHeight - this._variation
});
}
/**
* @private
* @return {?}
*/
detectMouseUpOutSide() {
document.addEventListener("mouseup", (/**
* @return {?}
*/
function () {
this._isDrag = false;
}).bind(this));
}
}
PublicAPI.CoordinateComponent = CoordinateComponent;
if (false) {
/**
* @type {?}
* @private
*/
CoordinateComponent.prototype._element;
/**
* @type {?}
* @private
*/
CoordinateComponent.prototype._coordinates;
/**
* @type {?}
* @private
*/
CoordinateComponent.prototype._onBorder;
/**
* @type {?}
* @private
*/
CoordinateComponent.prototype._isDrag;
/**
* @type {?}
* @private
*/
CoordinateComponent.prototype._variation;
/** @type {?} */
CoordinateComponent.prototype.element;
}
})(PublicAPI || (PublicAPI = {}));
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// variation to detect on border\r\n\r\n    constructor(public element: HTMLElement) {\r\n      this._element = element;\r\n      this.setCoordinates();\r\n      this.addListener(\"mousemove\");\r\n      this.addListener(\"mousedown\");\r\n      this.addListener(\"mouseup\");\r\n      this.detectMouseUpOutSide();\r\n    }\r\n\r\n    /**\r\n     * Return coordinates\r\n     */\r\n    public getCoordinates(): PublicInterface.Coordinate {\r\n      return this._coordinates;\r\n    }\r\n\r\n    /**\r\n     * Detect when module is on border of element\r\n     */\r\n    public onBorder(): PublicInterface.OnBorder {\r\n      return this._onBorder;\r\n    }\r\n\r\n    /**\r\n     * Detect hen drag starts\r\n     */\r\n    public onDragStart(): PublicInterface.isDrag {\r\n      return this._isDrag;\r\n    }\r\n\r\n    /**\r\n     * addEventListener to detect when on border\r\n     *\r\n     * @param name 'mousedown' | 'mouseup' | 'mouseover'\r\n     */\r\n    public addListener(name: string): void {\r\n      this._element.addEventListener(name, (mouse: MouseEvent) => {\r\n        this.detectOnborder(mouse);\r\n        this.detectOnDragStart(name, mouse);\r\n      });\r\n    }\r\n\r\n    /**\r\n     * Set variation to detect mouse on border\r\n     *\r\n     * @param value\r\n     */\r\n    public setVariation(value: number): void {\r\n      this._variation = value;\r\n    }\r\n\r\n    /**\r\n     * calculate current coordinate of HTMlelement\r\n     *\r\n     * @param element\r\n     */\r\n    private setCoordinates(): PublicInterface.Coordinate {\r\n      return (this._coordinates = Object.assign(\r\n        this.element.getBoundingClientRect(),\r\n        {\r\n          clientWidth: this.element.clientWidth,\r\n          clientHeight: this.element.clientHeight\r\n        }\r\n      ));\r\n    }\r\n\r\n    /**\r\n     * Private method to assign drag start\r\n     *\r\n     * @param name\r\n     * @param mouse\r\n     */\r\n    private detectOnDragStart(name: string, mouse: MouseEvent) {\r\n      if (\r\n        Object.values(this._onBorder).indexOf(true) != -1 &&\r\n        [\"mousedown\"].includes(name)\r\n      ) {\r\n        this._isDrag = true;\r\n      } else if (this._isDrag && [\"mousedown\", \"mousemove\"].includes(name)) {\r\n        this._isDrag = true;\r\n      } else {\r\n        this._isDrag = false;\r\n      }\r\n    }\r\n\r\n    /**\r\n     * detect when mouse click is on border\r\n     *\r\n     * @param mouse\r\n     */\r\n    private detectOnborder(mouse: MouseEvent) {\r\n      this._onBorder = Object.assign(this._onBorder ? this._onBorder : {}, {\r\n        left: mouse.offsetX < 0 + this._variation,\r\n        right:\r\n          mouse.offsetX >\r\n          (mouse.target as HTMLElement).clientWidth - this._variation,\r\n        top: mouse.offsetY < 0 + this._variation,\r\n        bottom:\r\n          mouse.offsetY >\r\n          (mouse.target as HTMLElement).clientHeight - this._variation\r\n      });\r\n    }\r\n\r\n    private detectMouseUpOutSide() {\r\n      document.addEventListener(\r\n        \"mouseup\",\r\n        function() {\r\n          this._isDrag = false;\r\n        }.bind(this)\r\n      );\r\n    }\r\n  }\r\n}\r\n"]}