@catull/igniteui-angular
Version:
Ignite UI for Angular is a dependency-free Angular toolkit for building modern web apps
163 lines • 17.9 kB
JavaScript
import { __decorate, __metadata } from "tslib";
import { Directive, Input, Output, EventEmitter, ElementRef, OnDestroy, NgZone, OnInit } from '@angular/core';
import { interval, Subject } from 'rxjs';
import { filter, takeUntil } from 'rxjs/operators';
export var DragScrollDirection;
(function (DragScrollDirection) {
DragScrollDirection[DragScrollDirection["NONE"] = 0] = "NONE";
DragScrollDirection[DragScrollDirection["LEFT"] = 1] = "LEFT";
DragScrollDirection[DragScrollDirection["TOP"] = 2] = "TOP";
DragScrollDirection[DragScrollDirection["RIGHT"] = 3] = "RIGHT";
DragScrollDirection[DragScrollDirection["BOTTOM"] = 4] = "BOTTOM";
DragScrollDirection[DragScrollDirection["TOPLEFT"] = 5] = "TOPLEFT";
DragScrollDirection[DragScrollDirection["TOPRIGHT"] = 6] = "TOPRIGHT";
DragScrollDirection[DragScrollDirection["BOTTOMLEFT"] = 7] = "BOTTOMLEFT";
DragScrollDirection[DragScrollDirection["BOTTOMRIGHT"] = 8] = "BOTTOMRIGHT";
})(DragScrollDirection || (DragScrollDirection = {}));
var IgxGridDragSelectDirective = /** @class */ (function () {
function IgxGridDragSelectDirective(ref, zone) {
var _this = this;
this.ref = ref;
this.zone = zone;
this.onDragStop = new EventEmitter();
this.onDragScroll = new EventEmitter();
this.end$ = new Subject();
this.lastDirection = DragScrollDirection.NONE;
this.startDragSelection = function (ev) {
if (!_this.activeDrag) {
return;
}
var x = ev.clientX;
var y = ev.clientY;
var direction = _this._measureDimensions(x, y);
if (direction === _this.lastDirection) {
return;
}
_this.unsubscribe();
_this._sub = _this._interval$.subscribe(function () { return _this.onDragScroll.emit(direction); });
_this.lastDirection = direction;
};
this.stopDragSelection = function () {
if (!_this.activeDrag) {
return;
}
_this.onDragStop.emit(false);
_this.unsubscribe();
_this.lastDirection = DragScrollDirection.NONE;
};
this._interval$ = interval(100).pipe(takeUntil(this.end$), filter(function () { return _this.activeDrag; }));
}
Object.defineProperty(IgxGridDragSelectDirective.prototype, "activeDrag", {
get: function () {
return this._activeDrag;
},
set: function (val) {
if (val !== this._activeDrag) {
this.unsubscribe();
this._activeDrag = val;
}
},
enumerable: true,
configurable: true
});
Object.defineProperty(IgxGridDragSelectDirective.prototype, "nativeElement", {
get: function () {
return this.ref.nativeElement;
},
enumerable: true,
configurable: true
});
Object.defineProperty(IgxGridDragSelectDirective.prototype, "clientRect", {
get: function () {
return this.nativeElement.getBoundingClientRect();
},
enumerable: true,
configurable: true
});
IgxGridDragSelectDirective.prototype.ngOnInit = function () {
var _this = this;
this.zone.runOutsideAngular(function () {
_this.nativeElement.addEventListener('pointerover', _this.startDragSelection);
_this.nativeElement.addEventListener('pointerleave', _this.stopDragSelection);
});
};
IgxGridDragSelectDirective.prototype.ngOnDestroy = function () {
var _this = this;
this.zone.runOutsideAngular(function () {
_this.nativeElement.removeEventListener('pointerover', _this.startDragSelection);
_this.nativeElement.removeEventListener('pointerleave', _this.stopDragSelection);
});
this.unsubscribe();
this.end$.complete();
};
IgxGridDragSelectDirective.prototype._measureDimensions = function (x, y) {
var direction;
var rect = this.clientRect;
var RATIO = 0.15;
var offsetX = Math.trunc(x - rect.left);
var offsetY = Math.trunc(y - rect.top);
var left = offsetX <= rect.width * RATIO;
var right = offsetX >= rect.width * (1 - RATIO);
var top = offsetY <= rect.height * RATIO;
var bottom = offsetY >= rect.height * (1 - RATIO);
if (top && left) {
direction = DragScrollDirection.TOPLEFT;
}
else if (top && right) {
direction = DragScrollDirection.TOPRIGHT;
}
else if (bottom && left) {
direction = DragScrollDirection.BOTTOMLEFT;
}
else if (bottom && right) {
direction = DragScrollDirection.BOTTOMRIGHT;
}
else if (top) {
direction = DragScrollDirection.TOP;
}
else if (bottom) {
direction = DragScrollDirection.BOTTOM;
}
else if (left) {
direction = DragScrollDirection.LEFT;
}
else if (right) {
direction = DragScrollDirection.RIGHT;
}
else {
direction = DragScrollDirection.NONE;
}
return direction;
};
IgxGridDragSelectDirective.prototype.unsubscribe = function () {
if (this._sub) {
this._sub.unsubscribe();
}
};
IgxGridDragSelectDirective.ctorParameters = function () { return [
{ type: ElementRef },
{ type: NgZone }
]; };
__decorate([
Input('igxGridDragSelect'),
__metadata("design:type", Boolean),
__metadata("design:paramtypes", [Boolean])
], IgxGridDragSelectDirective.prototype, "activeDrag", null);
__decorate([
Output(),
__metadata("design:type", Object)
], IgxGridDragSelectDirective.prototype, "onDragStop", void 0);
__decorate([
Output(),
__metadata("design:type", Object)
], IgxGridDragSelectDirective.prototype, "onDragScroll", void 0);
IgxGridDragSelectDirective = __decorate([
Directive({
selector: '[igxGridDragSelect]'
}),
__metadata("design:paramtypes", [ElementRef, NgZone])
], IgxGridDragSelectDirective);
return IgxGridDragSelectDirective;
}());
export { IgxGridDragSelectDirective };
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{ Directive, Input, Output, EventEmitter, ElementRef, OnDestroy, NgZone, OnInit } from '@angular/core';\nimport { interval, Observable, Subscription, Subject } from 'rxjs';\nimport { filter, takeUntil } from 'rxjs/operators';\n\nexport enum DragScrollDirection {\n    NONE,\n    LEFT,\n    TOP,\n    RIGHT,\n    BOTTOM,\n    TOPLEFT,\n    TOPRIGHT,\n    BOTTOMLEFT,\n    BOTTOMRIGHT\n}\n\n\n@Directive({\n    selector: '[igxGridDragSelect]'\n})\nexport class IgxGridDragSelectDirective implements OnInit, OnDestroy {\n    _activeDrag: boolean;\n\n    @Input('igxGridDragSelect')\n    get activeDrag(): boolean {\n        return this._activeDrag;\n    }\n\n    set activeDrag(val: boolean) {\n        if (val !== this._activeDrag) {\n            this.unsubscribe();\n            this._activeDrag = val;\n        }\n    }\n\n    @Output()\n    onDragStop = new EventEmitter<boolean>();\n\n    @Output()\n    onDragScroll = new EventEmitter<DragScrollDirection>();\n\n    get nativeElement(): HTMLElement {\n        return this.ref.nativeElement;\n    }\n\n    get clientRect(): ClientRect {\n        return this.nativeElement.getBoundingClientRect();\n    }\n\n    protected end$ = new Subject<any>();\n    protected lastDirection = DragScrollDirection.NONE;\n    protected _interval$: Observable<any>;\n    protected _sub: Subscription;\n\n    constructor(private ref: ElementRef, private zone: NgZone) {\n        this._interval$ = interval(100).pipe(\n            takeUntil(this.end$),\n            filter(() => this.activeDrag)\n        );\n    }\n\n    ngOnInit() {\n        this.zone.runOutsideAngular(() => {\n            this.nativeElement.addEventListener('pointerover', this.startDragSelection);\n            this.nativeElement.addEventListener('pointerleave', this.stopDragSelection);\n        });\n    }\n\n    ngOnDestroy() {\n        this.zone.runOutsideAngular(() => {\n            this.nativeElement.removeEventListener('pointerover', this.startDragSelection);\n            this.nativeElement.removeEventListener('pointerleave', this.stopDragSelection);\n        });\n        this.unsubscribe();\n        this.end$.complete();\n    }\n\n\n    startDragSelection = (ev: PointerEvent) => {\n        if (!this.activeDrag) {\n            return;\n        }\n        const x = ev.clientX;\n        const y = ev.clientY;\n        const direction = this._measureDimensions(x, y);\n        if (direction === this.lastDirection) {\n            return;\n        }\n        this.unsubscribe();\n        this._sub = this._interval$.subscribe(() => this.onDragScroll.emit(direction));\n        this.lastDirection = direction;\n    }\n\n    stopDragSelection = () => {\n        if (!this.activeDrag) {\n            return;\n        }\n        this.onDragStop.emit(false);\n        this.unsubscribe();\n        this.lastDirection = DragScrollDirection.NONE;\n    }\n\n    _measureDimensions(x: number, y: number): DragScrollDirection {\n        let direction: DragScrollDirection;\n\n        const rect = this.clientRect;\n        const RATIO = 0.15;\n        const offsetX = Math.trunc(x - rect.left);\n        const offsetY = Math.trunc(y - rect.top);\n\n        const left = offsetX <= rect.width * RATIO;\n        const right = offsetX >= rect.width * (1 - RATIO);\n        const top = offsetY <= rect.height * RATIO;\n        const bottom = offsetY >= rect.height * (1 - RATIO);\n\n        if (top && left) {\n            direction = DragScrollDirection.TOPLEFT;\n        } else if (top && right) {\n            direction = DragScrollDirection.TOPRIGHT;\n        } else if (bottom && left) {\n            direction = DragScrollDirection.BOTTOMLEFT;\n        } else if (bottom && right) {\n            direction = DragScrollDirection.BOTTOMRIGHT;\n        } else if (top) {\n            direction = DragScrollDirection.TOP;\n        } else if (bottom) {\n            direction = DragScrollDirection.BOTTOM;\n        } else if (left) {\n            direction = DragScrollDirection.LEFT;\n        } else if (right) {\n            direction = DragScrollDirection.RIGHT;\n        } else {\n            direction = DragScrollDirection.NONE;\n        }\n\n        return direction;\n\n    }\n\n    protected unsubscribe() {\n        if (this._sub) {\n            this._sub.unsubscribe();\n        }\n    }\n}\n"]}