coherent-gameface-interaction-manager
Version:
Library for the most common UI interactions
929 lines (920 loc) • 36.3 kB
JavaScript
var dropzone = (() => {
var __getOwnPropNames = Object.getOwnPropertyNames;
var __esm = (fn, res) => function __init() {
return fn && (res = (0, fn[__getOwnPropNames(fn)[0]])(fn = 0)), res;
};
var __commonJS = (cb, mod) => function __require() {
return mod || (0, cb[__getOwnPropNames(cb)[0]])((mod = { exports: {} }).exports, mod), mod.exports;
};
// interaction-manager/src/utils/drag-base.js
var DragBase, drag_base_default;
var init_drag_base = __esm({
"interaction-manager/src/utils/drag-base.js"() {
DragBase = class {
/**
*
* @param {Object} options
*/
constructor(options) {
this.draggableElements = [];
this.draggedElement = null;
this.enabled = false;
this.onMouseDown = this.onMouseDown.bind(this);
this.onMouseMove = this.onMouseMove.bind(this);
this.onMouseUp = this.onMouseUp.bind(this);
this.options = options;
}
/**
* Get the index of the dragged item in the draggableElements
*/
get draggedItemIndex() {
return [...this.draggableElements].indexOf(this.draggedElement);
}
/**
* Gets the body scroll offset to calculate in the dragging
*/
get bodyScrollOffset() {
return {
x: document.body.scrollLeft,
y: document.body.scrollTop
};
}
/**
*
* @param {number} clientX
* @param {number} clientY
* @param {HTMLElement} target
*/
setPointerOffset(clientX, clientY, target) {
const { x, y } = target.getBoundingClientRect();
this.offset = {
x: clientX - x,
y: clientY - y
};
}
};
drag_base_default = DragBase;
}
});
// interaction-manager/src/utils/utility-functions.js
function toDeg(rad) {
return rad * 180 / Math.PI;
}
function createHash() {
return (Math.random() + 1).toString(36).substring(7);
}
function distanceBetweenTwoPoints(x1, y1, x2, y2) {
const a = x1 - x2;
const b = y1 - y2;
return Math.hypot(a, b);
}
function getMidPoint(x1, y1, x2, y2) {
return {
x: (x1 + x2) / 2,
y: (y1 + y2) / 2
};
}
var init_utility_functions = __esm({
"interaction-manager/src/utils/utility-functions.js"() {
}
});
// interaction-manager/src/utils/global-object.js
var IM, global_object_default;
var init_global_object = __esm({
"interaction-manager/src/utils/global-object.js"() {
IM = class _IM2 {
// eslint-disable-next-line require-jsdoc
constructor() {
this.actions = [];
this.keyboardFunctions = [];
this.gamepadFunctions = [];
}
/**
* Initialize global object
*/
init() {
if (!window._IM)
window._IM = new _IM2();
}
/**
*
* @param {string[]} keys Array of key combinations
* @returns {string[]} Key combination from the _IM global object
*/
getKeys(keys) {
return _IM.keyboardFunctions.filter((keyFunction) => keyFunction.keys.every((key) => keys.includes(key)));
}
/**
*
* @param {string[]} keys Array of key combinations
* @returns {number} Index of key combination in _IM
*/
getKeysIndex(keys) {
return _IM.keyboardFunctions.findIndex((keyFunction) => keyFunction.keys.every((key) => keys.includes(key)));
}
/**
*
* @param {Array} actions Array of actions
* @param {string} type Type of action
* @returns {Object} Action from the _IM global object
*/
getGamepadAction({ actions, type }) {
return _IM.gamepadFunctions.find((gpFunc) => {
return gpFunc.actions.every((action) => actions.includes(action)) && gpFunc.type === type && gpFunc.actions.length === actions.length;
});
}
/**
*
* @param {Array} actions Array of actions
* @param {string} type Type of action
* @returns {Object} Action from the _IM global object
*/
getGamepadActions(actions) {
return _IM.gamepadFunctions.filter(
(gpFunc) => gpFunc.actions.every((action) => actions.includes(action)) && gpFunc.actions.length === actions.length
);
}
/**
*
* @param {Array} actions Array of actions
* @returns {number} Index of an action from the _IM global object
*/
getGamepadActionIndex(actions) {
return _IM.gamepadFunctions.findIndex((gpFunc) => gpFunc.actions.every((action) => actions.includes(action)));
}
/**
*
* @param {string} action Action to search for
* @returns {Object}
*/
getAction(action) {
return _IM.actions.find((actionObj) => actionObj.name === action);
}
/**
*
* @param {string} action Action to search for
* @returns {number}
*/
getActionIndex(action) {
return _IM.actions.findIndex((actionObj) => actionObj.name === action);
}
};
global_object_default = new IM();
}
});
// interaction-manager/src/lib_components/actions.js
var Actions, actions_default;
var init_actions = __esm({
"interaction-manager/src/lib_components/actions.js"() {
init_global_object();
Actions = class {
/**
* Register an action
* @param {string} action - Function alias that allows you to save functions and reuse them
* @param {function} callback
* @returns {void}
*/
register(action, callback) {
if (global_object_default.getAction(action))
return console.error(`The following action "${action}" is already registered!`);
_IM.actions.push({ name: action, callback });
}
/**
* Remove a registered action
* @param {string} action - Name of action you want to remove
* @returns {void}
*/
remove(action) {
const actionIndex = global_object_default.getActionIndex(action);
if (actionIndex === -1)
return console.error(`${action} is not a registered action!`);
_IM.actions.splice(actionIndex, 1);
}
/**
* Trigger an action
* @param {string} action - Name of action you want to execute
* @param {any} value - Value that is passed to the callback
* @returns {void}
*/
execute(action, value) {
const actionObject = global_object_default.getAction(action);
if (!actionObject)
return console.error(`${action} is not a registered action!`);
actionObject.callback(value);
}
};
actions_default = new Actions();
}
});
// interaction-manager/src/utils/gesture-utils.js
function getDirection(diffX, diffY) {
const MIN_SWIPE_OFFSET = 200;
if (diffY < 0 && diffX > -MIN_SWIPE_OFFSET && diffX < MIN_SWIPE_OFFSET)
return "top";
if (diffY > 0 && diffX > -MIN_SWIPE_OFFSET && diffX < MIN_SWIPE_OFFSET)
return "bottom";
if (diffX < 0 && diffY > -MIN_SWIPE_OFFSET && diffY < MIN_SWIPE_OFFSET)
return "left";
if (diffX > 0 && diffY > -MIN_SWIPE_OFFSET && diffY < MIN_SWIPE_OFFSET)
return "right";
if (diffX <= -MIN_SWIPE_OFFSET && diffY <= -MIN_SWIPE_OFFSET)
return "top-left";
if (diffX >= MIN_SWIPE_OFFSET && diffY <= -MIN_SWIPE_OFFSET)
return "top-right";
if (diffX <= -MIN_SWIPE_OFFSET && diffY >= MIN_SWIPE_OFFSET)
return "bottom-left";
if (diffX >= MIN_SWIPE_OFFSET && diffY >= MIN_SWIPE_OFFSET)
return "bottom-right";
}
function getElement(element) {
return element instanceof HTMLElement ? element : document.querySelector(element);
}
var init_gesture_utils = __esm({
"interaction-manager/src/utils/gesture-utils.js"() {
}
});
// interaction-manager/src/lib_components/touch-gestures.js
var MULTIPLE_TOUCHES_MIN_NUMBER, TouchGestures, touch_gestures_default;
var init_touch_gestures = __esm({
"interaction-manager/src/lib_components/touch-gestures.js"() {
init_gesture_utils();
init_utility_functions();
MULTIPLE_TOUCHES_MIN_NUMBER = 2;
TouchGestures = class {
/**
* @typedef {Object} gestureReturnObject
* @property {function} gesture.remove - Removes the gesture and detaches the event listeners
*/
/* eslint-disable-next-line require-jsdoc */
constructor() {
this.activeTouches = /* @__PURE__ */ new Map();
}
/**
*
* @param {Object} options
* @param {HTMLElement | string} options.element - Element you want to attach the touch event to
* @param {function} options.callback - Function to be executed on touch
* @param {number} [options.time=1000] - Time in milliseconds for the press
* @returns {gestureReturnObject}
*/
hold(options) {
if (!options)
return console.error("Options not provided for hold!");
let holdTimer;
const element = getElement(options.element);
if (!element)
return console.error("Element not found!");
const onHold = ({ touches }) => {
this.activeTouches.set(touches[0].identifier, touches[0]);
holdTimer = setTimeout(() => {
if (!options.callback)
return;
options.callback();
}, options.time || 1e3);
};
const onHoldEnd = ({ touches }) => {
this.activeTouches.delete(touches[0].identifier);
clearTimeout(holdTimer);
};
element.addEventListener("touchstart", onHold);
element.addEventListener("touchend", onHoldEnd);
return {
/**
* Removes the event listeners
*/
remove() {
element.removeEventListener("touchstart", onHold);
element.removeEventListener("touchend", onHoldEnd);
}
};
}
/**
*
* @param {Object} options
* @param {HTMLElement | string} options.element - Element you want to attach the touch event to
* @param {function} options.callback - Function to be executed on touch
* @param {number} [options.tapsNumber=1] - Number of taps necessary for the callback to be executed
* @param {number} [options.tapTime=200] - Time in milliseconds between putting down the finger and lifting it up
* @param {number} [options.betweenTapsTime=500] - Time in milliseconds between two sequential taps
* @returns {gestureReturnObject}
*/
tap(options) {
if (!options)
return console.error("Options not provided for tap!");
let tapTimer, betweenTapsTimer;
let isTap = true;
let tapCount = options.tapsNumber || 1;
const element = getElement(options.element);
if (!element)
return console.error("Element not found!");
const onTap = ({ touches }) => {
this.activeTouches.set(touches[0].identifier, touches[0]);
clearTimeout(betweenTapsTimer);
isTap = true;
tapTimer = setTimeout(() => {
isTap = false;
}, options.tapTime || 200);
};
const onTapEnd = ({ touches }) => {
this.activeTouches.delete(touches[0].identifier);
clearTimeout(tapTimer);
if (!isTap)
return;
tapCount--;
betweenTapsTimer = setTimeout(() => {
tapCount = options.tapsNumber || 1;
clearTimeout(betweenTapsTimer);
}, options.betweenTapsTime || 500);
if (tapCount !== 0 || !options.callback)
return;
options.callback();
isTap = true;
clearTimeout(tapTimer);
tapCount = options.tapsNumber || 1;
};
element.addEventListener("touchstart", onTap);
element.addEventListener("touchend", onTapEnd);
return {
/**
* Removes the event listeners
*/
remove() {
element.removeEventListener("touchstart", onTap);
element.removeEventListener("touchend", onTapEnd);
}
};
}
/**
*
* @param {Object} options
* @param {HTMLElement | string} options.element - Element you want to attach the touch event to
* @param {function} options.onDragStart - Function to be executed on drag start
* @param {function} options.onDrag - Function to be executed on drag
* @param {function} options.onDragEnd - Function to be executed on drag end
* @returns {gestureReturnObject}
*/
drag(options) {
if (!options)
return console.error("Options not provided for drag!");
const element = getElement(options.element);
if (!element)
return console.error("Element not found!");
const onDragStart = ({ touches, target, currentTarget }) => {
this.activeTouches.set(touches[0].identifier, touches[0]);
document.addEventListener("touchmove", onDrag);
document.addEventListener("touchend", onDragEnd);
if (!options.onDragStart)
return;
options.onDragStart({ x: touches[0].clientX, y: touches[0].clientY, target, currentTarget });
};
const onDrag = ({ touches }) => {
if (!this.activeTouches.has(touches[0].identifier))
return;
if (!options.onDrag)
return;
options.onDrag({ x: touches[0].clientX, y: touches[0].clientY });
};
const onDragEnd = ({ touches }) => {
this.activeTouches.delete(touches[0].identifier);
document.removeEventListener("touchmove", onDrag);
document.removeEventListener("touchend", onDragEnd);
if (!options.onDragEnd)
return;
options.onDragEnd({ x: touches[0].clientX, y: touches[0].clientY });
};
element.addEventListener("touchstart", onDragStart);
return {
/**
* Removes the event listeners
*/
remove() {
element.removeEventListener("touchstart", onDragStart);
}
};
}
/**
*
* @param {Object} options
* @param {HTMLElement | string} options.element - Element you want to attach the touch event to
* @param {function} options.callback - Function to be executed on touch- Directions of the swipe
* @param {number} options.touchNumber - Number of fingers necessary for the swipe
* @returns {gestureReturnObject}
*/
swipe(options) {
if (!options)
return console.error("Options not provided for swipe!");
let swipeTimer, direction, distance;
let isSwipe = true;
const SWIPE_MIN_DISTANCE = 100;
options.touchNumber ||= 1;
const element = getElement(options.element);
if (!element)
return console.error("Element not found!");
const onSwipeStart = ({ touches }) => {
this.activeTouches.set(touches[0].identifier, touches[0]);
if (this.activeTouches.size > options.touchNumber) {
document.removeEventListener("touchmove", onSwipe);
document.removeEventListener("touchend", onSwipeEnd);
}
if (this.activeTouches.size !== options.touchNumber)
return;
swipeTimer = setTimeout(() => {
isSwipe = false;
clearTimeout(swipeTimer);
swipeTimer = null;
}, 1e3);
document.addEventListener("touchmove", onSwipe);
document.addEventListener("touchend", onSwipeEnd);
};
const onSwipe = ({ touches }) => {
if (!this.activeTouches.has(touches[0].identifier))
return;
const { clientX: startX, clientY: startY } = this.activeTouches.get(touches[0].identifier);
const diffX = touches[0].clientX - startX;
const diffY = touches[0].clientY - startY;
direction = getDirection(diffX, diffY);
distance = distanceBetweenTwoPoints(startX, startY, touches[0].clientX, touches[0].clientY);
};
const onSwipeEnd = ({ touches }) => {
this.activeTouches.delete(touches[0].identifier);
if (this.activeTouches.size !== 0)
return;
document.removeEventListener("touchmove", onSwipe);
document.removeEventListener("touchend", onSwipeEnd);
if (isSwipeComplete()) {
options.callback(direction);
}
clearTimeout(swipeTimer);
isSwipe = true;
swipeTimer = null;
};
const isSwipeComplete = () => {
return isSwipe && options.callback && direction && distance > SWIPE_MIN_DISTANCE;
};
element.addEventListener("touchstart", onSwipeStart);
return {
/**
* Removes the event listeners
*/
remove() {
element.removeEventListener("touchstart", onSwipeStart);
}
};
}
/**
*
* @param {Object} options
* @param {HTMLElement | string} options.element - Element you want to attach the touch event to
* @param {function} options.callback - Function to be executed on touch
* @returns {gestureReturnObject}
*/
pinch(options) {
if (!options)
return console.error("Options not provided for pinch!");
let distance;
const PINCH_DELTA_NUMBER = 40;
const element = getElement(options.element);
if (!element)
return console.error("Element not found!");
const onPinchStart = ({ touches }) => {
this.activeTouches.set(touches[0].identifier, touches[0]);
if (this.activeTouches.size < MULTIPLE_TOUCHES_MIN_NUMBER)
return;
document.addEventListener("touchmove", onPinch);
document.addEventListener("touchend", onPinchEnd);
distance = distanceBetweenTwoPoints(
this.activeTouches.get(0).clientX,
this.activeTouches.get(0).clientY,
this.activeTouches.get(1).clientX,
this.activeTouches.get(1).clientY
);
};
const onPinch = ({ touches }) => {
if (this.activeTouches.size !== MULTIPLE_TOUCHES_MIN_NUMBER)
return;
this.activeTouches.set(touches[0].identifier, touches[0]);
const newDistance = distanceBetweenTwoPoints(
this.activeTouches.get(0).clientX,
this.activeTouches.get(0).clientY,
this.activeTouches.get(1).clientX,
this.activeTouches.get(1).clientY
);
const pinchDelta = Math.sign(newDistance - distance) * PINCH_DELTA_NUMBER;
distance = newDistance;
const midpoint = getMidPoint(
this.activeTouches.get(0).clientX,
this.activeTouches.get(0).clientY,
this.activeTouches.get(1).clientX,
this.activeTouches.get(1).clientY
);
if (options.callback)
options.callback({ pinchDelta, midpoint });
};
const onPinchEnd = ({ touches }) => {
this.activeTouches.delete(touches[0].identifier);
if (this.activeTouches.size !== 0)
return;
document.removeEventListener("touchmove", onPinch);
document.removeEventListener("touchend", onPinchEnd);
};
element.addEventListener("touchstart", onPinchStart);
return {
/**
* Removes the event listeners
*/
remove() {
element.removeEventListener("touchstart", onPinchStart);
}
};
}
/**
*
* @param {Object} options
* @param {HTMLElement | string} options.element - Element you want to attach the touch event to
* @param {function} options.callback - Function to be executed on touch
* @returns {gestureReturnObject}
*/
rotate(options) {
if (!options)
return console.error("Options not provided for rotate!");
let angle = 0;
let initialAngle;
const element = getElement(options.element);
if (!element)
return console.error("Element not found!");
const onRotate = ({ touches }) => {
if (this.activeTouches.size < MULTIPLE_TOUCHES_MIN_NUMBER)
return;
this.activeTouches.set(touches[0].identifier, touches[0]);
angle = getAngle() - initialAngle;
if (options.callback)
options.callback(angle);
};
const onRotateStart = ({ touches }) => {
this.activeTouches.set(touches[0].identifier, touches[0]);
if (this.activeTouches.size !== MULTIPLE_TOUCHES_MIN_NUMBER)
return;
initialAngle = getAngle() - angle;
document.addEventListener("touchmove", onRotate);
document.addEventListener("touchend", onRotateEnd);
};
const onRotateEnd = ({ touches }) => {
this.activeTouches.delete(touches[0].identifier);
document.removeEventListener("touchmove", onRotate);
document.removeEventListener("touchend", onRotateEnd);
};
element.addEventListener("touchstart", onRotateStart);
const getAngle = () => {
const fullRotation = 360;
const rotationOffset = 90;
const offsetY = this.activeTouches.get(0).clientY - this.activeTouches.get(1).clientY;
const offsetX = this.activeTouches.get(0).clientX - this.activeTouches.get(1).clientX;
return (toDeg(Math.atan2(offsetY, offsetX)) + fullRotation + rotationOffset) % fullRotation;
};
return {
/**
* Removes the event listeners
*/
remove() {
element.removeEventListener("touchstart", onRotateStart);
}
};
}
};
touch_gestures_default = new TouchGestures();
}
});
// interaction-manager/src/lib_components/dropzone.js
var Dropzone, dropzone_default;
var init_dropzone = __esm({
"interaction-manager/src/lib_components/dropzone.js"() {
init_drag_base();
init_utility_functions();
init_actions();
init_touch_gestures();
Dropzone = class extends drag_base_default {
/**
*
* @typedef {Object} DropzoneOptions
* @property {string} element
* @property {string[]} dropzones
* @property {string} draggedClass
* @property {string} dropzoneActiveClass
* @property {'switch'|'add'|'shift'|'none'} dropType If there is already an element in the dropzone
* @property {function} onDragStart
* @property {function} onDragMove
* @property {function} onDragEnd
* @property {function} onDropZoneEnter
* @property {function} onDropZoneLeave
* @property {function} onDrop
*/
/**
*
* @param {DropzoneOptions} options
*/
constructor(options) {
super(options);
const hash = createHash();
this.dropzones = [];
this.draggedOver = null;
this.actionName = `drag-and-drop-${hash}`;
this.automaticAction = `move-to-${hash}`;
this.onMouseEnter = this.onMouseEnter.bind(this);
this.onMouseLeave = this.onMouseLeave.bind(this);
this._touchEnabled = false;
this.touchEvents = [];
this.init();
}
/**
* Enables or disabled touch events
* @param {boolean} enabled
*/
set touchEnabled(enabled) {
if (this._touchEnabled === enabled)
return;
this._touchEnabled = enabled;
this._touchEnabled ? this.addTouchEvents() : this.removeTouchEvents();
}
/**
* @returns {void}
*/
init() {
if (this.enabled)
return;
this.draggableElements = document.querySelectorAll(this.options.element);
if (this.draggableElements.length === 0) {
return console.error(`${this.options.element} is not a valid element selector.`);
}
this.draggableElements.forEach((element) => element.addEventListener("mousedown", this.onMouseDown));
this.createDropzones();
if (this.dropzones.length === 0)
return;
this.dropzones.forEach((dropzone) => {
dropzone.addEventListener("mouseenter", this.onMouseEnter);
dropzone.addEventListener("mouseleave", this.onMouseLeave);
});
this.registerDragActions();
this.enabled = true;
}
/**
* Deinitializes the dragging
* @returns {void}
*/
deinit() {
if (!this.enabled)
return;
this.draggableElements.forEach((element) => element.removeEventListener("mousedown", this.onMouseDown));
this.dropzones.forEach((dropzone) => {
dropzone.removeEventListener("mouseenter", this.onMouseEnter);
dropzone.removeEventListener("mouseleave", this.onMouseLeave);
});
this.removeActions();
this.enabled = false;
}
/**
* mousedown event handler
* @param {MouseEvent} event
*/
onMouseDown(event) {
this.draggedElement = event.currentTarget;
this.draggedElement.style.position = "absolute";
this.draggedElement.style.pointerEvents = "none";
this.setPointerOffset(event.clientX, event.clientY, this.draggedElement);
actions_default.execute(this.actionName, {
x: event.clientX + this.bodyScrollOffset.x - this.offset.x,
y: event.clientY + this.bodyScrollOffset.y - this.offset.y,
index: this.draggedItemIndex
});
this.options.dragStyle && this.draggedElement.classList.add(this.options.dragStyle);
this.options.onDragStart && this.options.onDragStart(this.draggedElement);
document.addEventListener("mousemove", this.onMouseMove);
document.addEventListener("mouseup", this.onMouseUp);
}
/**
* mousemove event handler
* @param {MouseEvent} event
*/
onMouseMove(event) {
actions_default.execute(this.actionName, {
x: event.clientX + this.bodyScrollOffset.x - this.offset.x,
y: event.clientY + this.bodyScrollOffset.y - this.offset.y,
index: this.draggedItemIndex
});
}
/**
* mouseup event handler
*/
onMouseUp() {
document.removeEventListener("mousemove", this.onMouseMove);
document.removeEventListener("mouseup", this.onMouseUp);
this.draggedElement.style.position = "";
this.draggedElement.style.pointerEvents = "";
this.draggedElement.style.left = "";
this.draggedElement.style.top = "";
this.options.onDragEnd && this.options.onDragEnd(this.draggedElement);
this.options.dragStyle && this.draggedElement.classList.remove(this.options.dragStyle);
this.draggedOver && this.handleDrop();
this.draggedElement = null;
}
/**
* Handler for the mouseenter event
* @param {MouseEvent} event
* @returns {void}
*/
onMouseEnter(event) {
if (!this.draggedElement)
return;
this.draggedOver = event.currentTarget;
this.options.dropzoneActiveClass && this.draggedOver.classList.add(this.options.dropzoneActiveClass);
}
/**
* Handler for the mouseleave event
* @returns {void}
*/
onMouseLeave() {
if (!this.draggedElement)
return;
if (this.options.dropzoneActiveClass && this.draggedOver) {
this.draggedOver.classList.remove(this.options.dropzoneActiveClass);
}
this.draggedOver = null;
}
/**
* Register dragging as an action to be able to use it externally
*/
registerDragActions() {
actions_default.register(this.actionName, ({ x, y, index }) => {
if (!this.draggableElements[index])
return console.error(`There is no draggable element at index ${index}`);
this.draggableElements[index].style.left = `${x}px`;
this.draggableElements[index].style.top = `${y}px`;
this.options.onDragMove && this.options.onDragMove({ x, y });
});
actions_default.register(this.automaticAction, this.automaticMove.bind(this));
this.actionsRegistered = true;
}
/**
* Removes the registered actions
*/
removeActions() {
actions_default.remove(this.actionName);
actions_default.remove(this.automaticAction);
}
/* eslint-disable max-lines-per-function*/
/**
* Adds touch events to the draggable elements
*/
addTouchEvents() {
this.draggableElements.forEach((element) => {
this.touchEvents.push(
touch_gestures_default.drag({
element,
onDragStart: (event) => {
this.onMouseDown({ currentTarget: event.currentTarget, clientX: event.x, clientY: event.y });
},
onDrag: ({ x, y }) => {
this.onMouseMove({ clientX: x, clientY: y });
const elementOver = document.elementFromPoint(x, y);
let dropzone = this.options.dropzones.reduce((acc, dropzone2) => {
if (acc)
return acc;
return acc = elementOver.closest(dropzone2);
}, null);
if (!dropzone) {
dropzone = this.dropzones.includes(elementOver) ? elementOver : null;
}
if (dropzone) {
this.onMouseEnter({ currentTarget: dropzone });
return;
}
this.onMouseLeave();
},
onDragEnd: () => {
this.onMouseUp();
}
})
);
});
}
/* eslint-enable max-lines-per-function */
/**
* Removes the touch gestures
*/
removeTouchEvents() {
this.touchEvents.forEach((event) => event.remove());
this.touchEvents = [];
}
/**
* Automatically drags an element to a dropzone
* @param {Object} options
* @param {number} options.elementIndex The index of the element you want to move
* @param {number} options.dropzoneIndex The index of the dropzone you want to move the element to
*/
automaticMove({ elementIndex, dropzoneIndex }) {
const { x, y } = this.dropzones[dropzoneIndex].getBoundingClientRect();
const { x: elementX, y: elementY } = this.draggableElements[elementIndex].getBoundingClientRect();
const direction = {
x: Math.sign(x - elementX),
y: Math.sign(y - elementY)
};
this.draggableElements[elementIndex].style.position = "absolute";
const loop = (newX, newY) => {
if (newX === x && newY === y) {
this.dropzones[dropzoneIndex].appendChild(this.draggableElements[elementIndex]);
this.draggableElements[elementIndex].style.position = "";
return;
}
newX = newX !== x ? direction.x + newX : newX;
newY = newY !== y ? direction.y + newY : newY;
this.draggableElements[elementIndex].style.left = `${newX}px`;
this.draggableElements[elementIndex].style.top = `${newY}px`;
if (newX !== x || newY !== y)
requestAnimationFrame(() => loop(newX, newY));
};
loop(elementX, elementY);
}
/**
* Saves the dropzones
*/
createDropzones() {
this.dropzones = this.options.dropzones.reduce((acc, dropzone) => {
const dropzoneElements = [...document.querySelectorAll(dropzone)];
if (dropzoneElements.length === 0) {
console.error(`${dropzone} is not a valid html element to be used as a dropzone`);
}
return acc.concat(dropzoneElements);
}, []);
}
/**
* Handler when you drop the dragged item
*/
handleDrop() {
let dropType = this.options.dropType;
const eventData = {
preventDefault: () => {
dropType = "ignore";
},
target: this.draggedElement,
dropzone: this.draggedOver
};
this.options.onDrop && this.options.onDrop(eventData);
if (dropType === "ignore")
return;
if (this.draggedOver.children.length === 0)
dropType = "add";
switch (dropType) {
case "add":
this.draggedOver.appendChild(this.draggedElement);
break;
case "shift":
this.shiftElements();
break;
case "switch":
this.draggedElement.parentNode.appendChild(this.draggedOver.children[0]);
this.draggedOver.appendChild(this.draggedElement);
break;
case "none":
break;
default:
break;
}
this.onMouseLeave();
}
/**
* Shifts the element to the nearest empty space
*/
shiftElements() {
const dropzoneIndex = this.dropzones.findIndex((dropzone) => dropzone === this.draggedOver);
const dropzoneChildren = this.dropzones.map((dropzone) => {
if (dropzone.children[0] === this.draggedElement)
return [];
return [...dropzone.children];
});
const closestEmptyIndex = dropzoneChildren.reduce((acc, el, index) => {
if (el.length === 0)
acc = Math.abs(dropzoneIndex - index) < Math.abs(dropzoneIndex - acc) ? index : acc;
return acc;
}, 1e5);
const directionEmpty = Math.sign(dropzoneIndex - closestEmptyIndex) > 0 ? 0 : 1;
const directionDropzone = Math.sign(dropzoneIndex - closestEmptyIndex) < 0 ? 0 : 1;
dropzoneChildren.splice(dropzoneIndex + directionDropzone, 0, [this.draggedElement]);
dropzoneChildren.splice(closestEmptyIndex + directionEmpty, 1);
dropzoneChildren.forEach((children, index) => {
children.forEach((child) => this.dropzones[index].appendChild(child));
});
}
};
dropzone_default = Dropzone;
}
});
// interaction-manager/src/dropzone.js
var require_dropzone = __commonJS({
"interaction-manager/src/dropzone.js"(exports, module) {
init_dropzone();
init_global_object();
global_object_default.init();
module.exports = dropzone_default;
}
});
return require_dropzone();
})();