@foblex/drag-toolkit
Version:
A TypeScript library providing foundational classes and utilities for implementing drag-and-drop functionality in Angular applications, with support for both mouse and touch events, and designed to work with or without Angular’s NgZone (zoneless applicati
832 lines (816 loc) • 36.2 kB
JavaScript
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
typeof define === 'function' && define.amd ? define('@foblex/drag-toolkit', ['exports'], factory) :
(global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory((global.foblex = global.foblex || {}, global.foblex["drag-toolkit"] = {})));
})(this, (function (exports) { 'use strict';
/******************************************************************************
Copyright (c) Microsoft Corporation.
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.
***************************************************************************** */
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__assign: __assign,
__rest: __rest,
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__param: __param,
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__awaiter: __awaiter,
__generator: __generator,
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__exportStar: __exportStar,
__values: __values,
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__makeTemplateObject: __makeTemplateObject,
__importStar: __importStar,
__importDefault: __importDefault,
__classPrivateFieldGet: __classPrivateFieldGet,
__classPrivateFieldSet: __classPrivateFieldSet,
__classPrivateFieldIn: __classPrivateFieldIn,
__addDisposableResource: __addDisposableResource,
__disposeResources: __disposeResources,
};
var IPointerEvent = /** @class */ (function () {
function IPointerEvent(event, target) {
this.event = event;
this.target = target;
this.event = event;
}
Object.defineProperty(IPointerEvent.prototype, "originalEvent", {
get: function () {
return this.event;
},
enumerable: false,
configurable: true
});
Object.defineProperty(IPointerEvent.prototype, "targetElement", {
get: function () {
return this.target || this.originalEvent.target;
},
enumerable: false,
configurable: true
});
IPointerEvent.prototype.setTarget = function (target) {
this.target = target;
};
IPointerEvent.prototype.preventDefault = function () {
this.originalEvent.preventDefault();
};
Object.defineProperty(IPointerEvent.prototype, "isEventInLockedContext", {
get: function () {
return this.targetElement.closest('[fLockedContext]') !== null;
},
enumerable: false,
configurable: true
});
return IPointerEvent;
}());
var IMouseEvent = /** @class */ (function (_super) {
__extends(IMouseEvent, _super);
function IMouseEvent(event, target) {
return _super.call(this, event, target) || this;
}
IMouseEvent.prototype.isMouseLeftButton = function () {
return this.originalEvent.button === 0;
};
IMouseEvent.prototype.isMouseRightButton = function () {
return this.originalEvent.buttons === 2;
};
IMouseEvent.prototype.getPosition = function () {
return { x: this.originalEvent.clientX, y: this.originalEvent.clientY };
};
return IMouseEvent;
}(IPointerEvent));
var ITouchDownEvent = /** @class */ (function (_super) {
__extends(ITouchDownEvent, _super);
function ITouchDownEvent(event) {
return _super.call(this, event) || this;
}
ITouchDownEvent.prototype.isMouseLeftButton = function () {
return true;
};
ITouchDownEvent.prototype.isMouseRightButton = function () {
return false;
};
ITouchDownEvent.prototype.getPosition = function () {
return { x: this.originalEvent.touches[0].clientX, y: this.originalEvent.touches[0].clientY };
};
return ITouchDownEvent;
}(IPointerEvent));
var ITouchMoveEvent = /** @class */ (function (_super) {
__extends(ITouchMoveEvent, _super);
function ITouchMoveEvent(event, target) {
return _super.call(this, event, target) || this;
}
ITouchMoveEvent.prototype.isMouseLeftButton = function () {
return true;
};
ITouchMoveEvent.prototype.isMouseRightButton = function () {
return false;
};
ITouchMoveEvent.prototype.getPosition = function () {
return { x: this.originalEvent.targetTouches[0].clientX, y: this.originalEvent.targetTouches[0].clientY };
};
return ITouchMoveEvent;
}(IPointerEvent));
var ITouchUpEvent = /** @class */ (function (_super) {
__extends(ITouchUpEvent, _super);
function ITouchUpEvent(event) {
return _super.call(this, event) || this;
}
ITouchUpEvent.prototype.isMouseLeftButton = function () {
return true;
};
ITouchUpEvent.prototype.isMouseRightButton = function () {
return false;
};
ITouchUpEvent.prototype.getPosition = function () {
return { x: this.originalEvent.changedTouches[0].clientX, y: this.originalEvent.changedTouches[0].clientY };
};
return ITouchUpEvent;
}(IPointerEvent));
var EventExtensions = /** @class */ (function () {
function EventExtensions() {
}
EventExtensions.isPassiveEventListenerSupported = function () {
if (EventExtensions.isSupported == null && typeof window !== 'undefined') {
try {
window.addEventListener('test', EventExtensions.emptyListener, { passive: true });
EventExtensions.isSupported = true;
}
catch (e) {
EventExtensions.isSupported = false;
}
}
return EventExtensions.isSupported;
};
EventExtensions.passiveEventListener = function (options) {
return EventExtensions.isPassiveEventListenerSupported() ? options : !!options.capture;
};
EventExtensions.activeListener = function () {
return EventExtensions.passiveEventListener({ passive: false });
};
EventExtensions.passiveListener = function () {
return EventExtensions.passiveEventListener({ passive: true });
};
EventExtensions.emptyListener = function () {
return function () {
};
};
return EventExtensions;
}());
var IPointerUpEvent = /** @class */ (function (_super) {
__extends(IPointerUpEvent, _super);
function IPointerUpEvent(event, target) {
return _super.call(this, event, target) || this;
}
IPointerUpEvent.prototype.isMouseLeftButton = function () {
var evt = this.originalEvent;
return evt.pointerType === 'mouse' && evt.button === 0;
};
IPointerUpEvent.prototype.isMouseRightButton = function () {
var evt = this.originalEvent;
return evt.pointerType === 'mouse' && evt.button === 2;
};
IPointerUpEvent.prototype.getPosition = function () {
var evt = this.originalEvent;
return { x: evt.clientX, y: evt.clientY };
};
IPointerUpEvent.prototype.getPointerType = function () {
return this.originalEvent.pointerType;
};
IPointerUpEvent.prototype.getPointerId = function () {
return this.originalEvent.pointerId;
};
return IPointerUpEvent;
}(IPointerEvent));
var MOUSE_EVENT_IGNORE_TIME = 800;
var DragAndDropBase = /** @class */ (function () {
function DragAndDropBase(ngZone) {
var _this = this;
this.ngZone = ngZone;
this.mouseListeners = EventExtensions.emptyListener();
this.touchListeners = EventExtensions.emptyListener();
this.startListeners = EventExtensions.emptyListener();
this.lastTouchEventTime = 0;
this.isDragStarted = false;
this.dragStartThreshold = 3;
this.dragStartDelay = 0;
this.dragStartTime = 0;
this.dragStartPosition = { x: 0, y: 0 };
this.moveHandler = this.checkDragSequenceToStart;
this.pointerDownElement = null;
this.onMouseDown = function (event) {
var _a;
var isSyntheticEvent = _this.isSyntheticEvent(event);
var isFakeEvent = isFakeMousedownFromScreenReader(event);
var mouseEvent = new IMouseEvent(event);
_this.pointerDownElement = mouseEvent.targetElement;
if (isSyntheticEvent || isFakeEvent || _this.disabled) {
return;
}
var result = _this.onPointerDown(mouseEvent);
if (result) {
_this.dragStartTime = Date.now();
_this.dragStartPosition = mouseEvent.getPosition();
(_a = _this.ngZone) === null || _a === void 0 ? void 0 : _a.runOutsideAngular(function () {
var _a, _b, _c;
(_a = _this.document) === null || _a === void 0 ? void 0 : _a.addEventListener('selectstart', _this.onSelectStart, EventExtensions.activeListener());
(_b = _this.document) === null || _b === void 0 ? void 0 : _b.addEventListener('mousemove', _this.onMouseMove);
(_c = _this.document) === null || _c === void 0 ? void 0 : _c.addEventListener('pointerup', _this.onPointerUpEvent);
});
_this.mouseListeners = function () {
var _a, _b, _c;
(_a = _this.document) === null || _a === void 0 ? void 0 : _a.removeEventListener('selectstart', _this.onSelectStart, EventExtensions.activeListener());
(_b = _this.document) === null || _b === void 0 ? void 0 : _b.removeEventListener('mousemove', _this.onMouseMove);
(_c = _this.document) === null || _c === void 0 ? void 0 : _c.removeEventListener('pointerup', _this.onPointerUpEvent);
};
}
};
this.onTouchDown = function (event) {
var _a;
var isFakeEvent = isFakeTouchstartFromScreenReader(event);
var touchEvent = new ITouchDownEvent(event);
_this.pointerDownElement = touchEvent.targetElement;
if (isFakeEvent || _this.disabled) {
return;
}
var result = _this.onPointerDown(touchEvent);
if (result) {
_this.dragStartTime = Date.now();
_this.dragStartPosition = touchEvent.getPosition();
(_a = _this.ngZone) === null || _a === void 0 ? void 0 : _a.runOutsideAngular(function () {
var _a, _b, _c;
(_a = _this.document) === null || _a === void 0 ? void 0 : _a.addEventListener('selectstart', _this.onSelectStart, EventExtensions.activeListener());
(_b = _this.document) === null || _b === void 0 ? void 0 : _b.addEventListener('touchmove', _this.onTouchMove);
(_c = _this.document) === null || _c === void 0 ? void 0 : _c.addEventListener('pointerup', _this.onPointerUpEvent);
});
_this.touchListeners = function () {
var _a, _b, _c;
(_a = _this.document) === null || _a === void 0 ? void 0 : _a.removeEventListener('selectstart', _this.onSelectStart, EventExtensions.activeListener());
(_b = _this.document) === null || _b === void 0 ? void 0 : _b.removeEventListener('touchmove', _this.onTouchMove);
(_c = _this.document) === null || _c === void 0 ? void 0 : _c.removeEventListener('pointerup', _this.onPointerUpEvent);
};
}
};
this.onSelectStart = function (event) {
_this.onSelect(event);
};
this.onMouseMove = function (event) {
_this.moveHandler(new IMouseEvent(event));
};
this.onTouchMove = function (event) {
_this.moveHandler(new ITouchMoveEvent(event));
};
this.onPointerUpEvent = function (event) {
if (_this.isDragStarted) {
_this.onPointerUp(new IPointerUpEvent(event));
}
_this.endDragSequence();
};
}
DragAndDropBase.prototype.isSyntheticEvent = function (event) {
return !!this.lastTouchEventTime &&
(this.lastTouchEventTime + MOUSE_EVENT_IGNORE_TIME > Date.now());
};
DragAndDropBase.prototype.checkDragSequenceToStart = function (event) {
var pointerPosition = event.getPosition();
if (!this.isDragStarted && this.pointerDownElement) {
event.setTarget(this.pointerDownElement);
var distanceX = Math.abs(pointerPosition.x - this.dragStartPosition.x);
var distanceY = Math.abs(pointerPosition.y - this.dragStartPosition.y);
var isOverThreshold = distanceX + distanceY >= this.dragStartThreshold;
if (isOverThreshold) {
var isDelayElapsed = Date.now() >= this.dragStartTime + this.dragStartDelay;
if (!isDelayElapsed) {
this.endDragSequence();
return;
}
event.preventDefault();
this.prepareDragSequence(event);
this.isDragStarted = true;
this.moveHandler = this.onPointerMove;
if (isTouchEvent(event.originalEvent)) {
this.lastTouchEventTime = Date.now();
}
}
}
};
DragAndDropBase.prototype.endDragSequence = function () {
this.isDragStarted = false;
this.pointerDownElement = null;
this.moveHandler = this.checkDragSequenceToStart;
this.mouseListeners();
this.mouseListeners = EventExtensions.emptyListener();
this.touchListeners();
this.touchListeners = EventExtensions.emptyListener();
this.finalizeDragSequence();
};
DragAndDropBase.prototype.subscribe = function (fDocument) {
var _this = this;
var _a;
if (this.document) {
this.unsubscribe();
}
this.document = fDocument;
(_a = this.ngZone) === null || _a === void 0 ? void 0 : _a.runOutsideAngular(function () {
fDocument.addEventListener('mousedown', _this.onMouseDown, EventExtensions.activeListener());
fDocument.addEventListener('touchstart', _this.onTouchDown, EventExtensions.passiveListener());
});
this.startListeners = function () {
fDocument.removeEventListener('mousedown', _this.onMouseDown, EventExtensions.activeListener());
fDocument.removeEventListener('touchstart', _this.onTouchDown, EventExtensions.passiveListener());
};
};
DragAndDropBase.prototype.unsubscribe = function () {
this.startListeners();
this.startListeners = EventExtensions.emptyListener();
this.touchListeners();
this.touchListeners = EventExtensions.emptyListener();
this.mouseListeners();
this.mouseListeners = EventExtensions.emptyListener();
};
return DragAndDropBase;
}());
function isTouchEvent(event) {
return event.type[0] === 't';
}
function isFakeMousedownFromScreenReader(event) {
return event.buttons === 0 || (event.offsetX === 0 && event.offsetY === 0);
}
function isFakeTouchstartFromScreenReader(event) {
var touch = (event.touches && event.touches[0]) || (event.changedTouches && event.changedTouches[0]);
return (!!touch &&
touch.identifier === -1 &&
(touch.radiusX == null || touch.radiusX === 1) &&
(touch.radiusY == null || touch.radiusY === 1));
}
/**
* Generated bundle index. Do not edit.
*/
exports.DragAndDropBase = DragAndDropBase;
exports.EventExtensions = EventExtensions;
exports.IMouseEvent = IMouseEvent;
exports.IPointerEvent = IPointerEvent;
exports.ITouchDownEvent = ITouchDownEvent;
exports.ITouchMoveEvent = ITouchMoveEvent;
exports.ITouchUpEvent = ITouchUpEvent;
exports.MOUSE_EVENT_IGNORE_TIME = MOUSE_EVENT_IGNORE_TIME;
Object.defineProperty(exports, '__esModule', { value: true });
}));
//# sourceMappingURL=foblex-drag-toolkit.umd.js.map