/*! Cropper.js v2.0.0-rc.2 | (c) 2015-present Chen Fengyuan | MIT */
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
typeof define === 'function' && define.amd ? define(['exports'], factory) :
(global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.Cropper = {}));
})(this, (function (exports) { 'use strict';
const IS_BROWSER = typeof window !== 'undefined' && typeof window.document !== 'undefined';
const WINDOW = IS_BROWSER ? window : {};
const IS_TOUCH_DEVICE = IS_BROWSER ? 'ontouchstart' in WINDOW.document.documentElement : false;
const HAS_POINTER_EVENT = IS_BROWSER ? 'PointerEvent' in WINDOW : false;
const NAMESPACE = 'cropper';
const CROPPER_CANVAS = `${NAMESPACE}-canvas`;
const CROPPER_CROSSHAIR = `${NAMESPACE}-crosshair`;
const CROPPER_GIRD = `${NAMESPACE}-grid`;
const CROPPER_HANDLE = `${NAMESPACE}-handle`;
const CROPPER_IMAGE = `${NAMESPACE}-image`;
const CROPPER_SELECTION = `${NAMESPACE}-selection`;
const CROPPER_SHADE = `${NAMESPACE}-shade`;
const CROPPER_VIEWER = `${NAMESPACE}-viewer`;
// Actions
const ACTION_SELECT = 'select';
const ACTION_MOVE = 'move';
const ACTION_SCALE = 'scale';
const ACTION_ROTATE = 'rotate';
const ACTION_TRANSFORM = 'transform';
const ACTION_NONE = 'none';
const ACTION_RESIZE_NORTH = 'n-resize';
const ACTION_RESIZE_EAST = 'e-resize';
const ACTION_RESIZE_SOUTH = 's-resize';
const ACTION_RESIZE_WEST = 'w-resize';
const ACTION_RESIZE_NORTHEAST = 'ne-resize';
const ACTION_RESIZE_NORTHWEST = 'nw-resize';
const ACTION_RESIZE_SOUTHEAST = 'se-resize';
const ACTION_RESIZE_SOUTHWEST = 'sw-resize';
// Attributes
const ATTRIBUTE_ACTION = 'action';
// Native events
const EVENT_TOUCH_END = IS_TOUCH_DEVICE ? 'touchend touchcancel' : 'mouseup';
const EVENT_TOUCH_MOVE = IS_TOUCH_DEVICE ? 'touchmove' : 'mousemove';
const EVENT_TOUCH_START = IS_TOUCH_DEVICE ? 'touchstart' : 'mousedown';
const EVENT_POINTER_DOWN = HAS_POINTER_EVENT ? 'pointerdown' : EVENT_TOUCH_START;
const EVENT_POINTER_MOVE = HAS_POINTER_EVENT ? 'pointermove' : EVENT_TOUCH_MOVE;
const EVENT_POINTER_UP = HAS_POINTER_EVENT ? 'pointerup pointercancel' : EVENT_TOUCH_END;
const EVENT_ERROR = 'error';
const EVENT_KEYDOWN = 'keydown';
const EVENT_LOAD = 'load';
const EVENT_RESIZE = 'resize';
const EVENT_WHEEL = 'wheel';
// Custom events
const EVENT_ACTION = 'action';
const EVENT_ACTION_END = 'actionend';
const EVENT_ACTION_MOVE = 'actionmove';
const EVENT_ACTION_START = 'actionstart';
const EVENT_CHANGE = 'change';
const EVENT_TRANSFORM = 'transform';
/**
* Check if the given value is a string.
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if the given value is a string, else `false`.
*/
function isString(value) {
return typeof value === 'string';
}
/**
* Check if the given value is not a number.
*/
const isNaN = Number.isNaN || WINDOW.isNaN;
/**
* Check if the given value is a number.
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if the given value is a number, else `false`.
*/
function isNumber(value) {
return typeof value === 'number' && !isNaN(value);
}
/**
* Check if the given value is a positive number.
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if the given value is a positive number, else `false`.
*/
function isPositiveNumber(value) {
return isNumber(value) && value > 0 && value < Infinity;
}
/**
* Check if the given value is undefined.
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if the given value is undefined, else `false`.
*/
function isUndefined(value) {
return typeof value === 'undefined';
}
/**
* Check if the given value is an object.
* @param {*} value - The value to check.
* @returns {boolean} Returns `true` if the given value is an object, else `false`.
*/
function isObject(value) {
return typeof value === 'object' && value !== null;
}
const { hasOwnProperty } = Object.prototype;
/**
* Check if the given value is a plain object.
* @param {*} value - The value to check.
* @returns {boolean} Returns `true` if the given value is a plain object, else `false`.
*/
function isPlainObject(value) {
if (!isObject(value)) {
return false;
}
try {
const { constructor } = value;
const { prototype } = constructor;
return constructor && prototype && hasOwnProperty.call(prototype, 'isPrototypeOf');
}
catch (error) {
return false;
}
}
/**
* Check if the given value is a function.
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if the given value is a function, else `false`.
*/
function isFunction(value) {
return typeof value === 'function';
}
/**
* Check if the given node is an element.
* @param {*} node The node to check.
* @returns {boolean} Returns `true` if the given node is an element; otherwise, `false`.
*/
function isElement(node) {
return typeof node === 'object' && node !== null && node.nodeType === 1;
}
const REGEXP_CAMEL_CASE = /([a-z\d])([A-Z])/g;
/**
* Transform the given string from camelCase to kebab-case.
* @param {string} value The value to transform.
* @returns {string} Returns the transformed value.
*/
function toKebabCase(value) {
return String(value).replace(REGEXP_CAMEL_CASE, '$1-$2').toLowerCase();
}
const REGEXP_KEBAB_CASE = /-[A-z\d]/g;
/**
* Transform the given string from kebab-case to camelCase.
* @param {string} value The value to transform.
* @returns {string} Returns the transformed value.
*/
function toCamelCase(value) {
return value.replace(REGEXP_KEBAB_CASE, (substring) => substring.slice(1).toUpperCase());
}
const REGEXP_SPACES = /\s\s*/;
/**
* Remove event listener from the event target.
* {@link https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/removeEventListener}
* @param {EventTarget} target The target of the event.
* @param {string} types The types of the event.
* @param {EventListenerOrEventListenerObject} listener The listener of the event.
* @param {EventListenerOptions} [options] The options specify characteristics about the event listener.
*/
function off(target, types, listener, options) {
types.trim().split(REGEXP_SPACES).forEach((type) => {
target.removeEventListener(type, listener, options);
});
}
/**
* Add event listener to the event target.
* {@link https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener}
* @param {EventTarget} target The target of the event.
* @param {string} types The types of the event.
* @param {EventListenerOrEventListenerObject} listener The listener of the event.
* @param {AddEventListenerOptions} [options] The options specify characteristics about the event listener.
*/
function on(target, types, listener, options) {
types.trim().split(REGEXP_SPACES).forEach((type) => {
target.addEventListener(type, listener, options);
});
}
/**
* Add once event listener to the event target.
* @param {EventTarget} target The target of the event.
* @param {string} types The types of the event.
* @param {EventListenerOrEventListenerObject} listener The listener of the event.
* @param {AddEventListenerOptions} [options] The options specify characteristics about the event listener.
*/
function once(target, types, listener, options) {
on(target, types, listener, Object.assign(Object.assign({}, options), { once: true }));
}
const defaultEventOptions = {
bubbles: true,
cancelable: true,
composed: true,
};
/**
* Dispatch event on the event target.
* {@link https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/dispatchEvent}
* @param {EventTarget} target The target of the event.
* @param {string} type The name of the event.
* @param {*} [detail] The data passed when initializing the event.
* @param {CustomEventInit} [options] The other event options.
* @returns {boolean} Returns the result value.
*/
function emit(target, type, detail, options) {
return target.dispatchEvent(new CustomEvent(type, Object.assign(Object.assign(Object.assign({}, defaultEventOptions), { detail }), options)));
}
const resolvedPromise = Promise.resolve();
/**
* Defers the callback to be executed after the next DOM update cycle.
* @param {*} [context] The `this` context.
* @param {Function} [callback] The callback to execute after the next DOM update cycle.
* @returns {Promise} A promise that resolves to nothing.
*/
function nextTick(context, callback) {
return callback
? resolvedPromise.then(context ? callback.bind(context) : callback)
: resolvedPromise;
}
/**
* Get the offset base on the document.
* @param {Element} element The target element.
* @returns {object} The offset data.
*/
function getOffset(element) {
const { documentElement } = element.ownerDocument;
const box = element.getBoundingClientRect();
return {
left: box.left + (WINDOW.pageXOffset - documentElement.clientLeft),
top: box.top + (WINDOW.pageYOffset - documentElement.clientTop),
};
}
const REGEXP_ANGLE_UNIT = /deg|g?rad|turn$/i;
/**
* Convert an angle to a radian number.
* {@link https://developer.mozilla.org/en-US/docs/Web/CSS/angle}
* @param {number|string} angle The angle to convert.
* @returns {number} Returns the radian number.
*/
function toAngleInRadian(angle) {
const value = parseFloat(angle) || 0;
if (value !== 0) {
const [unit = 'rad'] = String(angle).match(REGEXP_ANGLE_UNIT) || [];
switch (unit.toLowerCase()) {
case 'deg':
return (value / 360) * (Math.PI * 2);
case 'grad':
return (value / 400) * (Math.PI * 2);
case 'turn':
return value * (Math.PI * 2);
}
}
return value;
}
const SIZE_ADJUSTMENT_TYPE_CONTAIN = 'contain';
const SIZE_ADJUSTMENT_TYPE_COVER = 'cover';
/**
* Get the max sizes in a rectangle under the given aspect ratio.
* @param {object} data The original sizes.
* @param {string} [type] The adjust type.
* @returns {object} Returns the result sizes.
*/
function getAdjustedSizes(data, type = SIZE_ADJUSTMENT_TYPE_CONTAIN) {
const { aspectRatio } = data;
let { width, height } = data;
const isValidWidth = isPositiveNumber(width);
const isValidHeight = isPositiveNumber(height);
if (isValidWidth && isValidHeight) {
const adjustedWidth = height * aspectRatio;
if ((type === SIZE_ADJUSTMENT_TYPE_CONTAIN && adjustedWidth > width)
|| (type === SIZE_ADJUSTMENT_TYPE_COVER && adjustedWidth < width)) {
height = width / aspectRatio;
}
else {
width = height * aspectRatio;
}
}
else if (isValidWidth) {
height = width / aspectRatio;
}
else if (isValidHeight) {
width = height * aspectRatio;
}
return {
width,
height,
};
}
/**
* Multiply multiple matrices.
* @param {Array} matrix The first matrix.
* @param {Array} args The rest matrices.
* @returns {Array} Returns the result matrix.
*/
function multiplyMatrices(matrix, ...args) {
if (args.length === 0) {
return matrix;
}
const [a1, b1, c1, d1, e1, f1] = matrix;
const [a2, b2, c2, d2, e2, f2] = args[0];
// ┌ a1 c1 e1 ┐ ┌ a2 c2 e2 ┐
// │ b1 d1 f1 │ × │ b2 d2 f2 │
// └ 0 0 1 ┘ └ 0 0 1 ┘
matrix = [
a1 * a2 + c1 * b2 /* + e1 * 0 */,
b1 * a2 + d1 * b2 /* + f1 * 0 */,
a1 * c2 + c1 * d2 /* + e1 * 0 */,
b1 * c2 + d1 * d2 /* + f1 * 0 */,
a1 * e2 + c1 * f2 + e1 /* * 1 */,
b1 * e2 + d1 * f2 + f1 /* * 1 */,
];
return multiplyMatrices(matrix, ...args.slice(1));
}
var style$8 = `:host([hidden]){display:none!important}`;
const REGEXP_SUFFIX = /left|top|width|height/i;
const DEFAULT_SHADOW_ROOT_MODE = 'open';
const shadowRoots = new WeakMap();
const styleSheets = new WeakMap();
const tagNames = new Map();
const supportsAdoptedStyleSheets = WINDOW.document && Array.isArray(WINDOW.document.adoptedStyleSheets) && 'replaceSync' in WINDOW.CSSStyleSheet.prototype;
class CropperElement extends HTMLElement {
get $sharedStyle() {
return `${this.themeColor ? `:host{--theme-color: ${this.themeColor};}` : ''}${style$8}`;
}
constructor() {
var _a, _b;
super();
this.shadowRootMode = DEFAULT_SHADOW_ROOT_MODE;
this.slottable = true;
const name = (_b = (_a = Object.getPrototypeOf(this)) === null || _a === void 0 ? void 0 : _a.constructor) === null || _b === void 0 ? void 0 : _b.$name;
if (name) {
tagNames.set(name, this.tagName.toLowerCase());
}
}
static get observedAttributes() {
return [
'shadow-root-mode',
'slottable',
'theme-color',
];
}
// Convert attribute to property
attributeChangedCallback(name, oldValue, newValue) {
if (Object.is(newValue, oldValue)) {
return;
}
const propertyName = toCamelCase(name);
const oldPropertyValue = this[propertyName];
let newPropertyValue = newValue;
switch (typeof oldPropertyValue) {
case 'boolean':
newPropertyValue = newValue !== null && newValue !== 'false';
break;
case 'number':
newPropertyValue = Number(newValue);
break;
}
this[propertyName] = newPropertyValue;
switch (name) {
case 'theme-color': {
const styleSheet = styleSheets.get(this);
const styles = this.$sharedStyle;
if (styleSheet && styles) {
if (supportsAdoptedStyleSheets) {
styleSheet.replaceSync(styles);
}
else {
styleSheet.textContent = styles;
}
}
break;
}
}
}
// Convert property to attribute
$propertyChangedCallback(name, oldValue, newValue) {
if (Object.is(newValue, oldValue)) {
return;
}
name = toKebabCase(name);
switch (typeof newValue) {
case 'boolean':
if (newValue === true) {
if (!this.hasAttribute(name)) {
this.setAttribute(name, '');
}
}
else {
this.removeAttribute(name);
}
break;
case 'number':
if (isNaN(newValue)) {
newValue = '';
}
else {
newValue = String(newValue);
}
// Fall through
// case 'string':
// eslint-disable-next-line no-fallthrough
default:
if (newValue) {
if (this.getAttribute(name) !== newValue) {
this.setAttribute(name, newValue);
}
}
else {
this.removeAttribute(name);
}
}
}
connectedCallback() {
// Observe properties after observed attributes
Object.getPrototypeOf(this).constructor.observedAttributes.forEach((attribute) => {
const property = toCamelCase(attribute);
let value = this[property];
if (!isUndefined(value)) {
this.$propertyChangedCallback(property, undefined, value);
}
Object.defineProperty(this, property, {
enumerable: true,
configurable: true,
get() {
return value;
},
set(newValue) {
const oldValue = value;
value = newValue;
this.$propertyChangedCallback(property, oldValue, newValue);
},
});
});
const shadow = this.attachShadow({
mode: this.shadowRootMode || DEFAULT_SHADOW_ROOT_MODE,
});
if (!this.shadowRoot) {
shadowRoots.set(this, shadow);
}
styleSheets.set(this, this.$addStyles(this.$sharedStyle));
if (this.$style) {
this.$addStyles(this.$style);
}
if (this.$template) {
const template = document.createElement('template');
template.innerHTML = this.$template;
shadow.appendChild(template.content);
}
if (this.slottable) {
const slot = document.createElement('slot');
shadow.appendChild(slot);
}
}
disconnectedCallback() {
if (styleSheets.has(this)) {
styleSheets.delete(this);
}
if (shadowRoots.has(this)) {
shadowRoots.delete(this);
}
}
// eslint-disable-next-line class-methods-use-this
$getTagNameOf(name) {
var _a;
return (_a = tagNames.get(name)) !== null && _a !== void 0 ? _a : name;
}
$setStyles(properties) {
Object.keys(properties).forEach((property) => {
let value = properties[property];
if (isNumber(value)) {
if (value !== 0 && REGEXP_SUFFIX.test(property)) {
value = `${value}px`;
}
else {
value = String(value);
}
}
this.style[property] = value;
});
return this;
}
/**
* Outputs the shadow root of the element.
* @returns {ShadowRoot} Returns the shadow root.
*/
$getShadowRoot() {
return this.shadowRoot || shadowRoots.get(this);
}
/**
* Adds styles to the shadow root.
* @param {string} styles The styles to add.
* @returns {CSSStyleSheet|HTMLStyleElement} Returns the generated style sheet.
*/
$addStyles(styles) {
let styleSheet;
const shadow = this.$getShadowRoot();
if (supportsAdoptedStyleSheets) {
styleSheet = new CSSStyleSheet();
styleSheet.replaceSync(styles);
shadow.adoptedStyleSheets = shadow.adoptedStyleSheets.concat(styleSheet);
}
else {
styleSheet = document.createElement('style');
styleSheet.textContent = styles;
shadow.appendChild(styleSheet);
}
return styleSheet;
}
/**
* Dispatches an event at the element.
* @param {string} type The name of the event.
* @param {*} [detail] The data passed when initializing the event.
* @param {CustomEventInit} [options] The other event options.
* @returns {boolean} Returns the result value.
*/
$emit(type, detail, options) {
return emit(this, type, detail, options);
}
/**
* Defers the callback to be executed after the next DOM update cycle.
* @param {Function} [callback] The callback to execute after the next DOM update cycle.
* @returns {Promise} A promise that resolves to nothing.
*/
$nextTick(callback) {
return nextTick(this, callback);
}
/**
* Defines the constructor as a new custom element.
* {@link https://developer.mozilla.org/en-US/docs/Web/API/CustomElementRegistry/define}
* @param {string|object} [name] The element name.
* @param {object} [options] The element definition options.
*/
static $define(name, options) {
if (isObject(name)) {
options = name;
name = '';
}
if (!name) {
name = this.$name || this.name;
}
name = toKebabCase(name);
if (IS_BROWSER && WINDOW.customElements && !WINDOW.customElements.get(name)) {
customElements.define(name, this, options);
}
}
}
CropperElement.$version = '2.0.0-rc.2';
var style$7 = `:host{display:block;min-height:100px;min-width:200px;overflow:hidden;position:relative;touch-action:none;-webkit-touch-callout:none;-webkit-user-select:none;-moz-user-select:none;user-select:none}:host([background]){background-color:#fff;background-image:repeating-linear-gradient(45deg,#ccc 25%,transparent 0,transparent 75%,#ccc 0,#ccc),repeating-linear-gradient(45deg,#ccc 25%,transparent 0,transparent 75%,#ccc 0,#ccc);background-image:repeating-conic-gradient(#ccc 0 25%,#fff 0 50%);background-position:0 0,.5rem .5rem;background-size:1rem 1rem}:host([disabled]){pointer-events:none}:host([disabled]):after{bottom:0;content:"";cursor:not-allowed;display:block;left:0;pointer-events:none;position:absolute;right:0;top:0}`;
class CropperCanvas extends CropperElement {
constructor() {
super(...arguments);
this.$onPointerDown = null;
this.$onPointerMove = null;
this.$onPointerUp = null;
this.$onWheel = null;
this.$wheeling = false;
this.$pointers = new Map();
this.$style = style$7;
this.$action = ACTION_NONE;
this.background = false;
this.disabled = false;
this.scaleStep = 0.1;
this.themeColor = '#39f';
}
static get observedAttributes() {
return super.observedAttributes.concat([
'background',
'disabled',
'scale-step',
]);
}
connectedCallback() {
super.connectedCallback();
if (!this.disabled) {
this.$bind();
}
}
disconnectedCallback() {
if (!this.disabled) {
this.$unbind();
}
super.disconnectedCallback();
}
$propertyChangedCallback(name, oldValue, newValue) {
if (Object.is(newValue, oldValue)) {
return;
}
super.$propertyChangedCallback(name, oldValue, newValue);
switch (name) {
case 'disabled':
if (newValue) {
this.$unbind();
}
else {
this.$bind();
}
break;
}
}
$bind() {
if (!this.$onPointerDown) {
this.$onPointerDown = this.$handlePointerDown.bind(this);
on(this, EVENT_POINTER_DOWN, this.$onPointerDown);
}
if (!this.$onPointerMove) {
this.$onPointerMove = this.$handlePointerMove.bind(this);
on(this.ownerDocument, EVENT_POINTER_MOVE, this.$onPointerMove);
}
if (!this.$onPointerUp) {
this.$onPointerUp = this.$handlePointerUp.bind(this);
on(this.ownerDocument, EVENT_POINTER_UP, this.$onPointerUp);
}
if (!this.$onWheel) {
this.$onWheel = this.$handleWheel.bind(this);
on(this, EVENT_WHEEL, this.$onWheel, {
passive: false,
capture: true,
});
}
}
$unbind() {
if (this.$onPointerDown) {
off(this, EVENT_POINTER_DOWN, this.$onPointerDown);
this.$onPointerDown = null;
}
if (this.$onPointerMove) {
off(this.ownerDocument, EVENT_POINTER_MOVE, this.$onPointerMove);
this.$onPointerMove = null;
}
if (this.$onPointerUp) {
off(this.ownerDocument, EVENT_POINTER_UP, this.$onPointerUp);
this.$onPointerUp = null;
}
if (this.$onWheel) {
off(this, EVENT_WHEEL, this.$onWheel, {
capture: true,
});
this.$onWheel = null;
}
}
$handlePointerDown(event) {
const { buttons, button, type } = event;
if (this.disabled || (
// Handle pointer or mouse event, and ignore touch event
((type === 'pointerdown' && event.pointerType === 'mouse') || type === 'mousedown') && (
// No primary button (Usually the left button)
(isNumber(buttons) && buttons !== 1) || (isNumber(button) && button !== 0)
// Open context menu
|| event.ctrlKey))) {
return;
}
const { $pointers } = this;
let action = '';
if (event.changedTouches) {
Array.from(event.changedTouches).forEach(({ identifier, pageX, pageY, }) => {
$pointers.set(identifier, {
startX: pageX,
startY: pageY,
endX: pageX,
endY: pageY,
});
});
}
else {
const { pointerId = 0, pageX, pageY } = event;
$pointers.set(pointerId, {
startX: pageX,
startY: pageY,
endX: pageX,
endY: pageY,
});
}
if ($pointers.size > 1) {
action = ACTION_TRANSFORM;
}
else if (isElement(event.target)) {
action = event.target.action || event.target.getAttribute(ATTRIBUTE_ACTION) || '';
}
if (this.$emit(EVENT_ACTION_START, {
action,
relatedEvent: event,
}) === false) {
return;
}
// Prevent page zooming in the browsers for iOS.
event.preventDefault();
this.$action = action;
this.style.willChange = 'transform';
}
$handlePointerMove(event) {
const { $action, $pointers } = this;
if (this.disabled || $action === ACTION_NONE || $pointers.size === 0) {
return;
}
if (this.$emit(EVENT_ACTION_MOVE, {
action: $action,
relatedEvent: event,
}) === false) {
return;
}
// Prevent page scrolling.
event.preventDefault();
if (event.changedTouches) {
Array.from(event.changedTouches).forEach(({ identifier, pageX, pageY, }) => {
const pointer = $pointers.get(identifier);
if (pointer) {
Object.assign(pointer, {
endX: pageX,
endY: pageY,
});
}
});
}
else {
const { pointerId = 0, pageX, pageY } = event;
const pointer = $pointers.get(pointerId);
if (pointer) {
Object.assign(pointer, {
endX: pageX,
endY: pageY,
});
}
}
const detail = {
action: $action,
relatedEvent: event,
};
if ($action === ACTION_TRANSFORM) {
const pointers2 = new Map($pointers);
let maxRotateRate = 0;
let maxScaleRate = 0;
let rotate = 0;
let scale = 0;
let centerX = event.pageX;
let centerY = event.pageY;
$pointers.forEach((pointer, pointerId) => {
pointers2.delete(pointerId);
pointers2.forEach((pointer2) => {
let x1 = pointer2.startX - pointer.startX;
let y1 = pointer2.startY - pointer.startY;
let x2 = pointer2.endX - pointer.endX;
let y2 = pointer2.endY - pointer.endY;
let z1 = 0;
let z2 = 0;
let a1 = 0;
let a2 = 0;
if (x1 === 0) {
if (y1 < 0) {
a1 = Math.PI * 2;
}
else if (y1 > 0) {
a1 = Math.PI;
}
}
else if (x1 > 0) {
a1 = (Math.PI / 2) + Math.atan(y1 / x1);
}
else if (x1 < 0) {
a1 = (Math.PI * 1.5) + Math.atan(y1 / x1);
}
if (x2 === 0) {
if (y2 < 0) {
a2 = Math.PI * 2;
}
else if (y2 > 0) {
a2 = Math.PI;
}
}
else if (x2 > 0) {
a2 = (Math.PI / 2) + Math.atan(y2 / x2);
}
else if (x2 < 0) {
a2 = (Math.PI * 1.5) + Math.atan(y2 / x2);
}
if (a2 > 0 || a1 > 0) {
const rotateRate = a2 - a1;
const absRotateRate = Math.abs(rotateRate);
if (absRotateRate > maxRotateRate) {
maxRotateRate = absRotateRate;
rotate = rotateRate;
centerX = (pointer.startX + pointer2.startX) / 2;
centerY = (pointer.startY + pointer2.startY) / 2;
}
}
x1 = Math.abs(x1);
y1 = Math.abs(y1);
x2 = Math.abs(x2);
y2 = Math.abs(y2);
if (x1 > 0 && y1 > 0) {
z1 = Math.sqrt((x1 * x1) + (y1 * y1));
}
else if (x1 > 0) {
z1 = x1;
}
else if (y1 > 0) {
z1 = y1;
}
if (x2 > 0 && y2 > 0) {
z2 = Math.sqrt((x2 * x2) + (y2 * y2));
}
else if (x2 > 0) {
z2 = x2;
}
else if (y2 > 0) {
z2 = y2;
}
if (z1 > 0 && z2 > 0) {
const scaleRate = (z2 - z1) / z1;
const absScaleRate = Math.abs(scaleRate);
if (absScaleRate > maxScaleRate) {
maxScaleRate = absScaleRate;
scale = scaleRate;
centerX = (pointer.startX + pointer2.startX) / 2;
centerY = (pointer.startY + pointer2.startY) / 2;
}
}
});
});
const rotatable = maxRotateRate > 0;
const scalable = maxScaleRate > 0;
if (rotatable && scalable) {
detail.rotate = rotate;
detail.scale = scale;
detail.centerX = centerX;
detail.centerY = centerY;
}
else if (rotatable) {
detail.action = ACTION_ROTATE;
detail.rotate = rotate;
detail.centerX = centerX;
detail.centerY = centerY;
}
else if (scalable) {
detail.action = ACTION_SCALE;
detail.scale = scale;
detail.centerX = centerX;
detail.centerY = centerY;
}
else {
detail.action = ACTION_NONE;
}
}
else {
const [pointer] = Array.from($pointers.values());
Object.assign(detail, pointer);
}
// Override the starting coordinate
$pointers.forEach((pointer) => {
pointer.startX = pointer.endX;
pointer.startY = pointer.endY;
});
if (detail.action !== ACTION_NONE) {
this.$emit(EVENT_ACTION, detail, {
cancelable: false,
});
}
}
$handlePointerUp(event) {
const { $action, $pointers } = this;
if (this.disabled || $action === ACTION_NONE) {
return;
}
if (this.$emit(EVENT_ACTION_END, {
action: $action,
relatedEvent: event,
}) === false) {
return;
}
event.preventDefault();
if (event.changedTouches) {
Array.from(event.changedTouches).forEach(({ identifier, }) => {
$pointers.delete(identifier);
});
}
else {
const { pointerId = 0 } = event;
$pointers.delete(pointerId);
}
if ($pointers.size === 0) {
this.style.willChange = '';
this.$action = ACTION_NONE;
}
}
$handleWheel(event) {
if (this.disabled) {
return;
}
event.preventDefault();
// Limit wheel speed to prevent zoom too fast (#21)
if (this.$wheeling) {
return;
}
this.$wheeling = true;
// Debounce by 50ms
setTimeout(() => {
this.$wheeling = false;
}, 50);
const delta = event.deltaY > 0 ? -1 : 1;
const scale = delta * this.scaleStep;
this.$emit(EVENT_ACTION, {
action: ACTION_SCALE,
scale,
relatedEvent: event,
}, {
cancelable: false,
});
}
/**
* Changes the current action to a new one.
* @param {string} action The new action.
* @returns {CropperCanvas} Returns `this` for chaining.
*/
$setAction(action) {
if (isString(action)) {
this.$action = action;
}
return this;
}
/**
* Generates a real canvas element, with the image draw into if there is one.
* @param {object} [options] The available options.
* @param {number} [options.width] The width of the canvas.
* @param {number} [options.height] The height of the canvas.
* @param {Function} [options.beforeDraw] The function called before drawing the image onto the canvas.
* @returns {Promise} Returns a promise that resolves to the generated canvas element.
*/
$toCanvas(options) {
return new Promise((resolve, reject) => {
if (!this.isConnected) {
reject(new Error('The current element is not connected to the DOM.'));
return;
}
const canvas = document.createElement('canvas');
let width = this.offsetWidth;
let height = this.offsetHeight;
let scale = 1;
if (isPlainObject(options)
&& (isPositiveNumber(options.width) || isPositiveNumber(options.height))) {
({ width, height } = getAdjustedSizes({
aspectRatio: width / height,
width: options.width,
height: options.height,
}));
scale = width / this.offsetWidth;
}
canvas.width = width;
canvas.height = height;
const cropperImage = this.querySelector(this.$getTagNameOf(CROPPER_IMAGE));
if (!cropperImage) {
resolve(canvas);
return;
}
cropperImage.$ready().then((image) => {
const context = canvas.getContext('2d');
if (context) {
const [a, b, c, d, e, f] = cropperImage.$getTransform();
let newE = e;
let newF = f;
let destWidth = image.naturalWidth;
let destHeight = image.naturalHeight;
if (scale !== 1) {
newE *= scale;
newF *= scale;
destWidth *= scale;
destHeight *= scale;
}
const centerX = destWidth / 2;
const centerY = destHeight / 2;
context.fillStyle = 'transparent';
context.fillRect(0, 0, width, height);
if (isPlainObject(options) && isFunction(options.beforeDraw)) {
options.beforeDraw.call(this, context, canvas);
}
context.save();
// Move the transform origin to the center of the image.
// https://developer.mozilla.org/en-US/docs/Web/CSS/transform-origin
context.translate(centerX, centerY);
context.transform(a, b, c, d, newE, newF);
// Reset the transform origin to the top-left of the image.
context.translate(-centerX, -centerY);
context.drawImage(image, 0, 0, destWidth, destHeight);
context.restore();
}
resolve(canvas);
}).catch(reject);
});
}
}
CropperCanvas.$name = CROPPER_CANVAS;
CropperCanvas.$version = '2.0.0-rc.2';
var style$6 = `:host{display:inline-block}img{display:block;height:100%;max-height:none!important;max-width:none!important;min-height:0!important;min-width:0!important;width:100%}`;
const canvasCache$3 = new WeakMap();
const NATIVE_ATTRIBUTES = [
'alt',
'crossorigin',
'decoding',
'importance',
'loading',
'referrerpolicy',
'sizes',
'src',
'srcset',
];
class CropperImage extends CropperElement {
constructor() {
super(...arguments);
this.$matrix = [1, 0, 0, 1, 0, 0];
this.$onLoad = null;
this.$onCanvasAction = null;
this.$onCanvasActionEnd = null;
this.$onCanvasActionStart = null;
this.$actionStartTarget = null;
this.$style = style$6;
this.$image = new Image();
this.initialCenterSize = 'contain';
this.rotatable = false;
this.scalable = false;
this.skewable = false;
this.slottable = false;
this.translatable = false;
}
set $canvas(element) {
canvasCache$3.set(this, element);
}
get $canvas() {
return canvasCache$3.get(this);
}
static get observedAttributes() {
return super.observedAttributes.concat(NATIVE_ATTRIBUTES, [
'initial-center-size',
'rotatable',
'scalable',
'skewable',
'translatable',
]);
}
attributeChangedCallback(name, oldValue, newValue) {
if (Object.is(newValue, oldValue)) {
return;
}
super.attributeChangedCallback(name, oldValue, newValue);
// Inherits the native attributes
if (NATIVE_ATTRIBUTES.includes(name)) {
this.$image.setAttribute(name, newValue);
}
}
$propertyChangedCallback(name, oldValue, newValue) {
if (Object.is(newValue, oldValue)) {
return;
}
super.$propertyChangedCallback(name, oldValue, newValue);
switch (name) {
case 'initialCenterSize':
this.$nextTick(() => {
this.$center(newValue);
});
break;
}
}
connectedCallback() {
super.connectedCallback();
const { $image } = this;
const $canvas = this.closest(this.$getTagNameOf(CROPPER_CANVAS));
if ($canvas) {
this.$canvas = $canvas;
this.$setStyles({
// Make it a block element to avoid side effects (#1074).
display: 'block',
position: 'absolute',
});
this.$onCanvasActionStart = (event) => {
var _a, _b;
this.$actionStartTarget = (_b = (_a = event.detail) === null || _a === void 0 ? void 0 : _a.relatedEvent) === null || _b === void 0 ? void 0 : _b.target;
};
this.$onCanvasActionEnd = () => {
this.$actionStartTarget = null;
};
this.$onCanvasAction = this.$handleAction.bind(this);
on($canvas, EVENT_ACTION_START, this.$onCanvasActionStart);
on($canvas, EVENT_ACTION_END, this.$onCanvasActionEnd);
on($canvas, EVENT_ACTION, this.$onCanvasAction);
}
this.$onLoad = this.$handleLoad.bind(this);
on($image, EVENT_LOAD, this.$onLoad);
this.$getShadowRoot().appendChild($image);
}
disconnectedCallback() {
const { $image, $canvas } = this;
if ($canvas) {
if (this.$onCanvasActionStart) {
off($canvas, EVENT_ACTION_START, this.$onCanvasActionStart);
this.$onCanvasActionStart = null;
}
if (this.$onCanvasActionEnd) {
off($canvas, EVENT_ACTION_END, this.$onCanvasActionEnd);
this.$onCanvasActionEnd = null;
}
if (this.$onCanvasAction) {
off($canvas, EVENT_ACTION, this.$onCanvasAction);
this.$onCanvasAction = null;
}
}
if ($image && this.$onLoad) {
off($image, EVENT_LOAD, this.$onLoad);
this.$onLoad = null;
}
this.$getShadowRoot().removeChild($image);
super.disconnectedCallback();
}
$handleLoad() {
const { $image } = this;
this.$setStyles({
width: $image.naturalWidth,
height: $image.naturalHeight,
});
if (this.$canvas) {
this.$center(this.initialCenterSize);
}
}
$handleAction(event) {
if (this.hidden || !(this.rotatable || this.scalable || this.translatable)) {
return;
}
const { $canvas } = this;
const { detail } = event;
if (detail) {
const { relatedEvent } = detail;
let { action } = detail;
if (action === ACTION_TRANSFORM && (!this.rotatable || !this.scalable)) {
if (this.rotatable) {
action = ACTION_ROTATE;
}
else if (this.scalable) {
action = ACTION_SCALE;
}
else {
action = ACTION_NONE;
}
}
switch (action) {
case ACTION_MOVE:
if (this.translatable) {
let $selection = null;
if (relatedEvent) {
$selection = relatedEvent.target.closest(this.$getTagNameOf(CROPPER_SELECTION));
}
if (!$selection) {
$selection = $canvas.querySelector(this.$getTagNameOf(CROPPER_SELECTION));
}
if ($selection && $selection.multiple && !$selection.active) {
$selection = $canvas.querySelector(`${this.$getTagNameOf(CROPPER_SELECTION)}[active]`);
}
if (!$selection || $selection.hidden || !$selection.movable || $selection.dynamic
|| !(this.$actionStartTarget && $selection.contains(this.$actionStartTarget))) {
this.$move(detail.endX - detail.startX, detail.endY - detail.startY);
}
}
break;
case ACTION_ROTATE:
if (this.rotatable) {
if (relatedEvent) {
const { x, y } = this.getBoundingClientRect();
this.$rotate(detail.rotate, relatedEvent.clientX - x, relatedEvent.clientY - y);
}
else {
this.$rotate(detail.rotate);
}
}
break;
case ACTION_SCALE:
if (this.scalable) {
if (relatedEvent) {
const $selection = relatedEvent.target.closest(this.$getTagNameOf(CROPPER_SELECTION));
if (!$selection
|| !$selection.zoomable
|| ($selection.zoomable && $selection.dynamic)) {
const { x, y } = this.getBoundingClientRect();
this.$zoom(detail.scale, relatedEvent.clientX - x, relatedEvent.clientY - y);
}
}
else {
this.$zoom(detail.scale);
}
}
break;
case ACTION_TRANSFORM:
if (this.rotatable && this.scalable) {
const { rotate } = detail;
let { scale } = detail;
if (scale < 0) {
scale = 1 / (1 - scale);
}
else {
scale += 1;
}
const cos = Math.cos(rotate);
const sin = Math.sin(rotate);
const [scaleX, skewY, skewX, scaleY] = [
cos * scale,
sin * scale,
-sin * scale,
cos * scale,
];
if (relatedEvent) {
const clientRect = this.getBoundingClientRect();
const x = relatedEvent.clientX - clientRect.x;
const y = relatedEvent.clientY - clientRect.y;
const [a, b, c, d] = this.$matrix;
const originX = clientRect.width / 2;
const originY = clientRect.height / 2;
const moveX = x - originX;
const moveY = y - originY;
const translateX = ((moveX * d) - (c * moveY)) / ((a * d) - (c * b));
const translateY = ((moveY * a) - (b * moveX)) / ((a * d) - (c * b));
/**
* Equals to
* this.$rotate(rotate, x, y);
* this.$scale(scale, x, y);
*/
this.$transform(scaleX, skewY, skewX, scaleY, translateX * (1 - scaleX) + translateY * skewX, translateY * (1 - scaleY) + translateX * skewY);
}
else {
/**
* Equals to
* this.$rotate(rotate);
* this.$scale(scale);
*/
this.$transform(scaleX, skewY, skewX, scaleY, 0, 0);
}
}
break;
}
}
}
/**
* Defers the callback to execute after successfully loading the image.
* @param {Function} [callback] The callback to execute after successfully loading the image.
* @returns {Promise} Returns a promise that resolves to the image element.
*/
$ready(callback) {
const { $image } = this;
const promise = new Promise((resolve, reject) => {
const error = new Error('Failed to load the image source');
if ($image.complete) {
if ($image.naturalWidth > 0 && $image.naturalHeight > 0) {
resolve($image);
}
else {
reject(error);
}
}
else {
const onLoad = () => {
// eslint-disable-next-line @typescript-eslint/no-use-before-define
off($image, EVENT_ERROR, onError);
resolve($image);
};
const onError = () => {
off($image, EVENT_LOAD, onLoad);
reject(error);
};
once($image, EVENT_LOAD, onLoad);
once($image, EVENT_ERROR, onError);
}
});
if (isFunction(callback)) {
promise.then((image) => {
callback(image);
return image;
});
}
return promise;
}
/**
* Aligns the image to the center of its parent element.
* @param {string} [size] The size of the image.
* @returns {CropperImage} Returns `this` for chaining.
*/
$center(size) {
const { parentElement } = this;
if (!parentElement) {
return this;
}
const container = parentElement.getBoundingClientRect();
const containerWidth = container.width;
const containerHeight = container.height;
const { x, y, width, height, } = this.getBoundingClientRect();
const startX = x + (width / 2);
const startY = y + (height / 2);
const endX = container.x + (containerWidth / 2);
const endY = container.y + (containerHeight / 2);
this.$move(endX - startX, endY - startY);
if (size && (width !== containerWidth || height !== containerHeight)) {
const scaleX = containerWidth / width;
const scaleY = containerHeight / height;
switch (size) {
case 'cover':
this.$scale(Math.max(scaleX, scaleY));
break;
case 'contain':
this.$scale(Math.min(scaleX, scaleY));
break;
}
}
return this;
}
/**
* Moves the image.
* @param {number} x The moving distance in the horizontal direction.
* @param {number} [y] The moving distance in the vertical direction.
* @returns {CropperImage} Returns `this` for chaining.
*/
$move(x, y = x) {
if (this.translatable && isNumber(x) && isNumber(y)) {
const [a, b, c, d] = this.$matrix;
const e = ((x * d) - (c * y)) / ((a * d) - (c * b));
const f = ((y * a) - (b * x)) / ((a * d) - (c * b));
this.$translate(e, f);
}
return this;
}
/**
* Moves the image to a specific position.
* @param {number} x The new position in the horizontal direction.
* @param {number} [y] The new position in the vertical direction.
* @returns {CropperImage} Returns `this` for chaining.
*/
$moveTo(x, y = x) {
if (this.translatable && isNumber(x) && isNumber(y)) {
const [a, b, c, d] = this.$matrix;
const e = ((x * d) - (c * y)) / ((a * d) - (c * b));
const f = ((y * a) - (b * x)) / ((a * d) - (c * b));
this.$setTransform(a, b, c, d, e, f);
}
return this;
}
/**
* Rotates the image.
* {@link https://developer.mozilla.org/en-US/docs/Web/CSS/transform-function/rotate}
* {@link https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/rotate}
* @param {number|string} angle The rotation angle (in radians).
* @param {number} [x] The rotation origin in the horizontal, defaults to the center of the image.
* @param {number} [y] The rotation origin in the vertical, defaults to the center of the image.
* @returns {CropperImage} Returns `this` for chaining.
*/
$rotate(angle, x, y) {
if (this.rotatable) {
const radian = toAngleInRadian(angle);
const cos = Math.cos(radian);
const sin = Math.sin(radian);
const [scaleX, skewY, skewX, scaleY] = [cos, sin, -sin, cos];
if (isNumber(x) && isNumber(y)) {
const [a, b, c, d] = this.$matrix;
const { width, height } = this.getBoundingClientRect();
const originX = width / 2;
const originY = height / 2;
const moveX = x - originX;
const moveY = y - originY;
const translateX = ((moveX * d) - (c * moveY)) / ((a * d) - (c * b));
const translateY = ((moveY * a) - (b * moveX)) / ((a * d) - (c * b));
/**
* Equals to
* this.$translate(translateX, translateX);
* this.$rotate(angle);
* this.$translate(-translateX, -translateX);
*/
this.$transform(scaleX, skewY, skewX, scaleY, translateX * (1 - scaleX) - translateY * skewX, translateY * (1 - scaleY) - translateX * skewY);
}
else {
this.$transform(scaleX, skewY, skewX, scaleY, 0, 0);
}
}
return this;
}
/**
* Zooms the image.
* @param {number} scale The zoom factor. Positive numbers for zooming in, and negative numbers for zooming out.
* @param {number} [x] The zoom origin in the horizontal, defaults to the center of the image.
* @param {number} [y] The zoom origin in the vertical, defaults to the center of the image.
* @returns {CropperImage} Returns `this` for chaining.
*/
$zoom(scale, x, y) {
if (!this.scalable || scale === 0) {
return this;
}
if (scale < 0) {
scale = 1 / (1 - scale);
}
else {
scale += 1;
}
if (isNumber(x) && isNumber(y)) {
const [a, b, c, d] = this.$matrix;
const { width, height } = this.getBoundingClientRect();
const originX = width / 2;
const originY = height / 2;
const moveX = x - originX;
const moveY = y - originY;
const translateX = ((moveX * d) - (c * moveY)) / ((a * d) - (c * b));
const translateY = ((moveY * a) - (b * moveX)) / ((a * d) - (c * b));
/**
* Equals to
* this.$translate(translateX, translateX);
* this.$scale(scale);
* this.$translate(-translateX, -translateX);
*/
this.$transform(scale, 0, 0, scale, translateX * (1 - scale), translateY * (1 - scale));
}
else {
this.$scale(scale);
}
return this;
}
/**
* Scales the image.
* {@link https://developer.mozilla.org/en-US/docs/Web/CSS/transform-function/scale}
* {@link https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/scale}
* @param {number} x The scaling factor in the horizontal direction.
* @param {number} [y] The scaling factor in the vertical direction.
* @returns {CropperImage} Returns `this` for chaining.
*/
$scale(x, y = x) {
if (this.scalable) {
this.$transform(x, 0, 0, y, 0, 0);
}
return this;
}
/**
* Skews the image.
* {@link https://developer.mozilla.org/en-US/docs/Web/CSS/transform-function/skew}
* {@link https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/transform}
* @param {number|string} x The skewing angle in the horizontal direction.
* @param {number|string} [y] The skewing angle in the vertical direction.
* @returns {CropperImage} Returns `this` for chaining.
*/
$skew(x, y = 0) {
if (this.skewable) {
const radianX = toAngleInRadian(x);
const radianY = toAngleInRadian(y);
this.$transform(1, Math.tan(radianY), Math.tan(radianX), 1, 0, 0);
}
return this;
}
/**
* Translates the image.
* {@link https://developer.mozilla.org/en-US/docs/Web/CSS/transform-function/translate}
* {@link https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/translate}
* @param {number} x The translating distance in the horizontal direction.
* @param {number} [y] The translating distance in the vertical direction.
* @returns {CropperImage} Returns `this` for chaining.
*/
$translate(x, y = x) {
if (this.translatable && isNumber(x) && isNumber(y)) {
this.$transform(1, 0, 0, 1, x, y);
}
return this;
}
/**
* Transforms the image.
* {@link https://developer.mozilla.org/en-US/docs/Web/CSS/transform-function/matrix}
* {@link https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/transform}
* @param {number} a The scaling factor in the horizontal direction.
* @param {number} b The skewing angle in the vertical direction.
* @param {number} c The skewing angle in the horizontal direction.
* @param {number} d The scaling factor in the vertical direction.
* @param {number} e The translating distance in the horizontal direction.
* @param {number} f The translating distance in the vertical direction.
* @returns {CropperImage} Returns `this` for chaining.
*/
$transform(a, b, c, d, e, f) {
if (isNumber(a)
&& isNumber(b)
&& isNumber(c)
&& isNumber(d)
&& isNumber(e)
&& isNumber(f)) {
return this.$setTransform(multiplyMatrices(this.$matrix, [a, b, c, d, e, f]));
}
return this;
}
/**
* Resets (overrides) the current transform to the specific identity matrix.
* {@link https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/setTransform}
* @param {number|Array} a The scaling factor in the horizontal direction.
* @param {number} b The skewing angle in the vertical direction.
* @param {number} c The skewing angle in the horizontal direction.
* @param {number} d The scaling factor in the vertical direction.
* @param {number} e The translating distance in the horizontal direction.
* @param {number} f The translating distance in the vertical direction.
* @returns {CropperImage} Returns `this` for chaining.
*/
$setTransform(a, b, c, d, e, f) {
if (this.rotatable || this.scalable || this.skewable || this.translatable) {
if (Array.isArray(a)) {
[a, b, c, d, e, f] = a;
}
if (isNumber(a)
&& isNumber(b)
&& isNumber(c)
&& isNumber(d)
&& isNumber(e)
&& isNumber(f)) {
const oldMatrix = [...this.$matrix];
const newMatrix = [a, b, c, d, e, f];
if (this.$emit(EVENT_TRANSFORM, {
matrix: newMatrix,
oldMatrix,
}) === false) {
return this;
}
this.$matrix = newMatrix;
this.style.transform = `matrix(${newMatrix.join(', ')})`;
}
}
return this;
}
/**
* Retrieves the current transformation matrix being applied to the element.
* {@link https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/getTransform}
* @returns {Array} Returns the readonly transformation matrix.
*/
$getTransform() {
return this.$matrix.slice();
}
/**
* Resets the current transform to the initial identity matrix.
* {@link https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/resetTransform}
* @returns {CropperImage} Returns `this` for chaining.
*/
$resetTransform() {
return this.$setTransform([1, 0, 0, 1, 0, 0]);
}
}
CropperImage.$name = CROPPER_IMAGE;
CropperImage.$version = '2.0.0-rc.2';
var style$5 = `:host{display:block;height:0;left:0;outline:var(--theme-color) solid 1px;position:relative;top:0;width:0}:host([transparent]){outline-color:transparent}`;
const canvasCache$2 = new WeakMap();
class CropperShade extends CropperElement {
constructor() {
super(...arguments);
this.$onCanvasChange = null;
this.$onCanvasActionEnd = null;
this.$onCanvasActionStart = null;
this.$style = style$5;
this.x = 0;
this.y = 0;
this.width = 0;
this.height = 0;
this.slottable = false;
this.themeColor = 'rgba(0, 0, 0, 0.65)';
}
set $canvas(element) {
canvasCache$2.set(this, element);
}
get $canvas() {
return canvasCache$2.get(this);
}
static get observedAttributes() {
return super.observedAttributes.concat([
'height',
'width',
'x',
'y',
]);
}
connectedCallback() {
super.connectedCallback();
const $canvas = this.closest(this.$getTagNameOf(CROPPER_CANVAS));
if ($canvas) {
this.$canvas = $canvas;
this.style.position = 'absolute';
const $selection = $canvas.querySelector(this.$getTagNameOf(CROPPER_SELECTION));
if ($selection) {
this.$onCanvasActionStart = (event) => {
if ($selection.hidden && event.detail.action === ACTION_SELECT) {
this.hidden = false;
}
};
this.$onCanvasActionEnd = (event) => {
if ($selection.hidden && event.detail.action === ACTION_SELECT) {
this.hidden = true;
}
};
this.$onCanvasChange = (event) => {
const { x, y, width, height, } = event.detail;
this.$change(x, y, width, height);
if ($selection.hidden || (x === 0 && y === 0 && width === 0 && height === 0)) {
this.hidden = true;
}
};
on($canvas, EVENT_ACTION_START, this.$onCanvasActionStart);
on($canvas, EVENT_ACTION_END, this.$onCanvasActionEnd);
on($canvas, EVENT_CHANGE, this.$onCanvasChange);
}
}
this.$render();
}
disconnectedCallback() {
const { $canvas } = this;
if ($canvas) {
if (this.$onCanvasActionStart) {
off($canvas, EVENT_ACTION_START, this.$onCanvasActionStart);
this.$onCanvasActionStart = null;
}
if (this.$onCanvasActionEnd) {
off($canvas, EVENT_ACTION_END, this.$onCanvasActionEnd);
this.$onCanvasActionEnd = null;
}
if (this.$onCanvasChange) {
off($canvas, EVENT_CHANGE, this.$onCanvasChange);
this.$onCanvasChange = null;
}
}
super.disconnectedCallback();
}
/**
* Changes the position and/or size of the shade.
* @param {number} x The new position in the horizontal direction.
* @param {number} y The new position in the vertical direction.
* @param {number} [width] The new width.
* @param {number} [height] The new height.
* @returns {CropperShade} Returns `this` for chaining.
*/
$change(x, y, width = this.width, height = this.height) {
if (!isNumber(x)
|| !isNumber(y)
|| !isNumber(width)
|| !isNumber(height)
|| (x === this.x && y === this.y && width === this.width && height === this.height)) {
return this;
}
if (this.hidden) {
this.hidden = false;
}
this.x = x;
this.y = y;
this.width = width;
this.height = height;
return this.$render();
}
/**
* Resets the shade to its initial position and size.
* @returns {CropperShade} Returns `this` for chaining.
*/
$reset() {
return this.$change(0, 0, 0, 0);
}
/**
* Refreshes the position or size of the shade.
* @returns {CropperShade} Returns `this` for chaining.
*/
$render() {
return this.$setStyles({
transform: `translate(${this.x}px, ${this.y}px)`,
width: this.width,
height: this.height,
outlineWidth: WINDOW.innerWidth,
});
}
}
CropperShade.$name = CROPPER_SHADE;
CropperShade.$version = '2.0.0-rc.2';
var style$4 = `:host{background-color:var(--theme-color);display:block}:host([action=move]),:host([action=select]){height:100%;left:0;position:absolute;top:0;width:100%}:host([action=move]){cursor:move}:host([action=select]){cursor:crosshair}:host([action$=-resize]){background-color:transparent;height:15px;position:absolute;width:15px}:host([action$=-resize]):after{background-color:var(--theme-color);content:"";display:block;height:5px;left:50%;position:absolute;top:50%;transform:translate(-50%,-50%);width:5px}:host([action=n-resize]),:host([action=s-resize]){cursor:ns-resize;left:50%;transform:translateX(-50%);width:100%}:host([action=n-resize]){top:-8px}:host([action=s-resize]){bottom:-8px}:host([action=e-resize]),:host([action=w-resize]){cursor:ew-resize;height:100%;top:50%;transform:translateY(-50%)}:host([action=e-resize]){right:-8px}:host([action=w-resize]){left:-8px}:host([action=ne-resize]){cursor:nesw-resize;right:-8px;top:-8px}:host([action=nw-resize]){cursor:nwse-resize;left:-8px;top:-8px}:host([action=se-resize]){bottom:-8px;cursor:nwse-resize;right:-8px}:host([action=se-resize]):after{height:15px;width:15px}@media (pointer:coarse){:host([action=se-resize]):after{height:10px;width:10px}}@media (pointer:fine){:host([action=se-resize]):after{height:5px;width:5px}}:host([action=sw-resize]){bottom:-8px;cursor:nesw-resize;left:-8px}:host([plain]){background-color:transparent}`;
class CropperHandle extends CropperElement {
constructor() {
super(...arguments);
this.$onCanvasCropEnd = null;
this.$onCanvasCropStart = null;
this.$style = style$4;
this.action = ACTION_NONE;
this.plain = false;
this.slottable = false;
this.themeColor = 'rgba(51, 153, 255, 0.5)';
}
static get observedAttributes() {
return super.observedAttributes.concat([
'action',
'plain',
]);
}
}
CropperHandle.$name = CROPPER_HANDLE;
CropperHandle.$version = '2.0.0-rc.2';
var style$3 = `:host{display:block;left:0;position:relative;right:0}:host([outlined]){outline:1px solid var(--theme-color)}:host([multiple]){outline:1px dashed hsla(0,0%,100%,.5)}:host([multiple]):after{bottom:0;content:"";cursor:pointer;display:block;left:0;position:absolute;right:0;top:0}:host([multiple][active]){outline-color:var(--theme-color);z-index:1}:host([multiple])>*{visibility:hidden}:host([multiple][active])>*{visibility:visible}:host([multiple][active]):after{display:none}`;
const canvasCache$1 = new WeakMap();
class CropperSelection extends CropperElement {
constructor() {
super(...arguments);
this.$onCanvasAction = null;
this.$onCanvasActionStart = null;
this.$onCanvasActionEnd = null;
this.$onDocumentKeyDown = null;
this.$action = '';
this.$actionStartTarget = null;
this.$changing = false;
this.$style = style$3;
this.$initialSelection = {
x: 0,
y: 0,
width: 0,
height: 0,
};
this.x = 0;
this.y = 0;
this.width = 0;
this.height = 0;
this.aspectRatio = NaN;
this.initialAspectRatio = NaN;
this.initialCoverage = NaN;
this.active = false;
// Deprecated as of v2.0.0-rc.0, use `dynamic` instead.
this.linked = false;
this.dynamic = false;
this.movable = false;
this.resizable = false;
this.zoomable = false;
this.multiple = false;
this.keyboard = false;
this.outlined = false;
this.precise = false;
}
set $canvas(element) {
canvasCache$1.set(this, element);
}
get $canvas() {
return canvasCache$1.get(this);
}
static get observedAttributes() {
return super.observedAttributes.concat([
'active',
'aspect-ratio',
'dynamic',
'height',
'initial-aspect-ratio',
'initial-coverage',
'keyboard',
'linked',
'movable',
'multiple',
'outlined',
'precise',
'resizable',
'width',
'x',
'y',
'zoomable',
]);
}
$propertyChangedCallback(name, oldValue, newValue) {
if (Object.is(newValue, oldValue)) {
return;
}
super.$propertyChangedCallback(name, oldValue, newValue);
switch (name) {
case 'x':
case 'y':
case 'width':
case 'height':
if (!this.$changing) {
this.$nextTick(() => {
this.$change(this.x, this.y, this.width, this.height, this.aspectRatio, true);
});
}
break;
case 'aspectRatio':
case 'initialAspectRatio':
this.$nextTick(() => {
this.$initSelection();
});
break;
case 'initialCoverage':
this.$nextTick(() => {
if (isPositiveNumber(newValue) && newValue <= 1) {
this.$initSelection(true, true);
}
});
break;
case 'keyboard':
this.$nextTick(() => {
if (this.$canvas) {
if (newValue) {
if (!this.$onDocumentKeyDown) {
this.$onDocumentKeyDown = this.$handleKeyDown.bind(this);
on(this.ownerDocument, EVENT_KEYDOWN, this.$onDocumentKeyDown);
}
}
else if (this.$onDocumentKeyDown) {
off(this.ownerDocument, EVENT_KEYDOWN, this.$onDocumentKeyDown);
this.$onDocumentKeyDown = null;
}
}
});
break;
case 'multiple':
this.$nextTick(() => {
if (this.$canvas) {
const selections = this.$getSelections();
if (newValue) {
selections.forEach((selection) => {
selection.active = false;
});
this.active = true;
this.$emit(EVENT_CHANGE, {
x: this.x,
y: this.y,
width: this.width,
height: this.height,
});
}
else {
this.active = false;
selections.slice(1).forEach((selection) => {
this.$removeSelection(selection);
});
}
}
});
break;
case 'precise':
this.$nextTick(() => {
this.$change(this.x, this.y);
});
break;
// Backwards compatible with 2.0.0-rc
case 'linked':
if (newValue) {
this.dynamic = true;
}
break;
}
}
connectedCallback() {
super.connectedCallback();
const $canvas = this.closest(this.$getTagNameOf(CROPPER_CANVAS));
if ($canvas) {
this.$canvas = $canvas;
this.$setStyles({
position: 'absolute',
transform: `translate(${this.x}px, ${this.y}px)`,
});
if (!this.hidden) {
this.$render();
}
this.$initSelection(true);
this.$onCanvasActionStart = this.$handleActionStart.bind(this);
this.$onCanvasActionEnd = this.$handleActionEnd.bind(this);
this.$onCanvasAction = this.$handleAction.bind(this);
on($canvas, EVENT_ACTION_START, this.$onCanvasActionStart);
on($canvas, EVENT_ACTION_END, this.$onCanvasActionEnd);
on($canvas, EVENT_ACTION, this.$onCanvasAction);
}
else {
this.$render();
}
}
disconnectedCallback() {
const { $canvas } = this;
if ($canvas) {
if (this.$onCanvasActionStart) {
off($canvas, EVENT_ACTION_START, this.$onCanvasActionStart);
this.$onCanvasActionStart = null;
}
if (this.$onCanvasActionEnd) {
off($canvas, EVENT_ACTION_END, this.$onCanvasActionEnd);
this.$onCanvasActionEnd = null;
}
if (this.$onCanvasAction) {
off($canvas, EVENT_ACTION, this.$onCanvasAction);
this.$onCanvasAction = null;
}
}
super.disconnectedCallback();
}
$getSelections() {
let selections = [];
if (this.parentElement) {
selections = Array.from(this.parentElement.querySelectorAll(this.$getTagNameOf(CROPPER_SELECTION)));
}
return selections;
}
$initSelection(center = false, resize = false) {
const { initialCoverage, parentElement } = this;
if (isPositiveNumber(initialCoverage) && parentElement) {
const aspectRatio = this.aspectRatio || this.initialAspectRatio;
let width = (resize ? 0 : this.width) || parentElement.offsetWidth * initialCoverage;
let height = (resize ? 0 : this.height) || parentElement.offsetHeight * initialCoverage;
if (isPositiveNumber(aspectRatio)) {
({ width, height } = getAdjustedSizes({ aspectRatio, width, height }));
}
this.$change(this.x, this.y, width, height);
if (center) {
this.$center();
}
// Overrides the initial position and size
this.$initialSelection = {
x: this.x,
y: this.y,
width: this.width,
height: this.height,
};
}
}
$createSelection() {
const newSelection = this.cloneNode(true);
if (this.hasAttribute('id')) {
newSelection.removeAttribute('id');
}
newSelection.initialCoverage = NaN;
this.active = false;
if (this.parentElement) {
this.parentElement.insertBefore(newSelection, this.nextSibling);
}
return newSelection;
}
$removeSelection(selection = this) {
if (this.parentElement) {
const selections = this.$getSelections();
if (selections.length > 1) {
const index = selections.indexOf(selection);
const activeSelection = selections[index + 1] || selections[index - 1];
if (activeSelection) {
selection.active = false;
this.parentElement.removeChild(selection);
activeSelection.active = true;
activeSelection.$emit(EVENT_CHANGE, {
x: activeSelection.x,
y: activeSelection.y,
width: activeSelection.width,
height: activeSelection.height,
});
}
}
else {
this.$clear();
}
}
}
$handleActionStart(event) {
var _a, _b;
const relatedTarget = (_b = (_a = event.detail) === null || _a === void 0 ? void 0 : _a.relatedEvent) === null || _b === void 0 ? void 0 : _b.target;
this.$action = '';
this.$actionStartTarget = relatedTarget;
if (!this.hidden
&& this.multiple
&& !this.active
&& relatedTarget === this
&& this.parentElement) {
this.$getSelections().forEach((selection) => {
selection.active = false;
});
this.active = true;
this.$emit(EVENT_CHANGE, {
x: this.x,
y: this.y,
width: this.width,
height: this.height,
});
}
}
$handleAction(event) {
const { currentTarget, detail } = event;
if (!currentTarget || !detail) {
return;
}
const { relatedEvent } = detail;
let { action } = detail;
// Switching to another selection
if (!action && this.multiple) {
// Get the `action` property from the focusing in selection
action = this.$action || (relatedEvent === null || relatedEvent === void 0 ? void 0 : relatedEvent.target.action);
this.$action = action;
}
if (!action
|| (this.hidden && action !== ACTION_SELECT)
|| (this.multiple && !this.active && action !== ACTION_SCALE)) {
return;
}
const moveX = detail.endX - detail.startX;
const moveY = detail.endY - detail.startY;
const { width, height } = this;
let { aspectRatio } = this;
// Locking aspect ratio by holding shift key
if (!isPositiveNumber(aspectRatio) && relatedEvent.shiftKey) {
aspectRatio = isPositiveNumber(width) && isPositiveNumber(height) ? width / height : 1;
}
switch (action) {
case ACTION_SELECT:
if (moveX !== 0 && moveY !== 0) {
const { $canvas } = this;
const offset = getOffset(currentTarget);
(this.multiple && !this.hidden ? this.$createSelection() : this).$change(detail.startX - offset.left, detail.startY - offset.top, Math.abs(moveX), Math.abs(moveY), aspectRatio);
if (moveX < 0) {
if (moveY < 0) {
// ↖️
action = ACTION_RESIZE_NORTHWEST;
}
else if (moveY > 0) {
// ↙️
action = ACTION_RESIZE_SOUTHWEST;
}
}
else if (moveX > 0) {
if (moveY < 0) {
// ↗️
action = ACTION_RESIZE_NORTHEAST;
}
else if (moveY > 0) {
// ↘️
action = ACTION_RESIZE_SOUTHEAST;
}
}
if ($canvas) {
$canvas.$action = action;
}
}
break;
case ACTION_MOVE:
if (this.movable && (this.dynamic
|| (this.$actionStartTarget && this.contains(this.$actionStartTarget)))) {
this.$move(moveX, moveY);
}
break;
case ACTION_SCALE:
if (relatedEvent && this.zoomable && (this.dynamic
|| this.contains(relatedEvent.target))) {
const offset = getOffset(currentTarget);
this.$zoom(detail.scale, relatedEvent.pageX - offset.left, relatedEvent.pageY - offset.top);
}
break;
default:
this.$resize(action, moveX, moveY, aspectRatio);
}
}
$handleActionEnd() {
this.$action = '';
this.$actionStartTarget = null;
}
$handleKeyDown(event) {
if (this.hidden
|| !this.keyboard
|| (this.multiple && !this.active)
|| event.defaultPrevented) {
return;
}
const { activeElement } = document;
// Disable keyboard control when input something
if (activeElement && (['INPUT', 'TEXTAREA'].includes(activeElement.tagName)
|| ['true', 'plaintext-only'].includes(activeElement.contentEditable))) {
return;
}
switch (event.key) {
case 'Backspace':
if (event.metaKey) {
event.preventDefault();
this.$removeSelection();
}
break;
case 'Delete':
event.preventDefault();
this.$removeSelection();
break;
// Move to the left
case 'ArrowLeft':
event.preventDefault();
this.$move(-1, 0);
break;
// Move to the right
case 'ArrowRight':
event.preventDefault();
this.$move(1, 0);
break;
// Move to the top
case 'ArrowUp':
event.preventDefault();
this.$move(0, -1);
break;
// Move to the bottom
case 'ArrowDown':
event.preventDefault();
this.$move(0, 1);
break;
case '+':
event.preventDefault();
this.$zoom(0.1);
break;
case '-':
event.preventDefault();
this.$zoom(-0.1);
break;
}
}
/**
* Aligns the selection to the center of its parent element.
* @returns {CropperSelection} Returns `this` for chaining.
*/
$center() {
const { parentElement } = this;
if (!parentElement) {
return this;
}
const x = (parentElement.offsetWidth - this.width) / 2;
const y = (parentElement.offsetHeight - this.height) / 2;
return this.$change(x, y);
}
/**
* Moves the selection.
* @param {number} x The moving distance in the horizontal direction.
* @param {number} [y] The moving distance in the vertical direction.
* @returns {CropperSelection} Returns `this` for chaining.
*/
$move(x, y = x) {
return this.$moveTo(this.x + x, this.y + y);
}
/**
* Moves the selection to a specific position.
* @param {number} x The new position in the horizontal direction.
* @param {number} [y] The new position in the vertical direction.
* @returns {CropperSelection} Returns `this` for chaining.
*/
$moveTo(x, y = x) {
if (!this.movable) {
return this;
}
return this.$change(x, y);
}
/**
* Adjusts the size the selection on a specific side or corner.
* @param {string} action Indicates the side or corner to resize.
* @param {number} [offsetX] The horizontal offset of the specific side or corner.
* @param {number} [offsetY] The vertical offset of the specific side or corner.
* @param {number} [aspectRatio] The aspect ratio for computing the new size if it is necessary.
* @returns {CropperSelection} Returns `this` for chaining.
*/
$resize(action, offsetX = 0, offsetY = 0, aspectRatio = this.aspectRatio) {
if (!this.resizable) {
return this;
}
const hasValidAspectRatio = isPositiveNumber(aspectRatio);
const { $canvas } = this;
let { x, y, width, height, } = this;
switch (action) {
case ACTION_RESIZE_NORTH:
y += offsetY;
height -= offsetY;
if (height < 0) {
action = ACTION_RESIZE_SOUTH;
height = -height;
y -= height;
}
if (hasValidAspectRatio) {
offsetX = offsetY * aspectRatio;
x += offsetX / 2;
width -= offsetX;
if (width < 0) {
width = -width;
x -= width;
}
}
break;
case ACTION_RESIZE_EAST:
width += offsetX;
if (width < 0) {
action = ACTION_RESIZE_WEST;
width = -width;
x -= width;
}
if (hasValidAspectRatio) {
offsetY = offsetX / aspectRatio;
y -= offsetY / 2;
height += offsetY;
if (height < 0) {
height = -height;
y -= height;
}
}
break;
case ACTION_RESIZE_SOUTH:
height += offsetY;
if (height < 0) {
action = ACTION_RESIZE_NORTH;
height = -height;
y -= height;
}
if (hasValidAspectRatio) {
offsetX = offsetY * aspectRatio;
x -= offsetX / 2;
width += offsetX;
if (width < 0) {
width = -width;
x -= width;
}
}
break;
case ACTION_RESIZE_WEST:
x += offsetX;
width -= offsetX;
if (width < 0) {
action = ACTION_RESIZE_EAST;
width = -width;
x -= width;
}
if (hasValidAspectRatio) {
offsetY = offsetX / aspectRatio;
y += offsetY / 2;
height -= offsetY;
if (height < 0) {
height = -height;
y -= height;
}
}
break;
case ACTION_RESIZE_NORTHEAST:
if (hasValidAspectRatio) {
offsetY = -offsetX / aspectRatio;
}
y += offsetY;
height -= offsetY;
width += offsetX;
if (width < 0 && height < 0) {
action = ACTION_RESIZE_SOUTHWEST;
width = -width;
height = -height;
x -= width;
y -= height;
}
else if (width < 0) {
action = ACTION_RESIZE_NORTHWEST;
width = -width;
x -= width;
}
else if (height < 0) {
action = ACTION_RESIZE_SOUTHEAST;
height = -height;
y -= height;
}
break;
case ACTION_RESIZE_NORTHWEST:
if (hasValidAspectRatio) {
offsetY = offsetX / aspectRatio;
}
x += offsetX;
y += offsetY;
width -= offsetX;
height -= offsetY;
if (width < 0 && height < 0) {
action = ACTION_RESIZE_SOUTHEAST;
width = -width;
height = -height;
x -= width;
y -= height;
}
else if (width < 0) {
action = ACTION_RESIZE_NORTHEAST;
width = -width;
x -= width;
}
else if (height < 0) {
action = ACTION_RESIZE_SOUTHWEST;
height = -height;
y -= height;
}
break;
case ACTION_RESIZE_SOUTHEAST:
if (hasValidAspectRatio) {
offsetY = offsetX / aspectRatio;
}
width += offsetX;
height += offsetY;
if (width < 0 && height < 0) {
action = ACTION_RESIZE_NORTHWEST;
width = -width;
height = -height;
x -= width;
y -= height;
}
else if (width < 0) {
action = ACTION_RESIZE_SOUTHWEST;
width = -width;
x -= width;
}
else if (height < 0) {
action = ACTION_RESIZE_NORTHEAST;
height = -height;
y -= height;
}
break;
case ACTION_RESIZE_SOUTHWEST:
if (hasValidAspectRatio) {
offsetY = -offsetX / aspectRatio;
}
x += offsetX;
width -= offsetX;
height += offsetY;
if (width < 0 && height < 0) {
action = ACTION_RESIZE_NORTHEAST;
width = -width;
height = -height;
x -= width;
y -= height;
}
else if (width < 0) {
action = ACTION_RESIZE_SOUTHEAST;
width = -width;
x -= width;
}
else if (height < 0) {
action = ACTION_RESIZE_NORTHWEST;
height = -height;
y -= height;
}
break;
}
if ($canvas) {
$canvas.$setAction(action);
}
return this.$change(x, y, width, height);
}
/**
* Zooms the selection.
* @param {number} scale The zoom factor. Positive numbers for zooming in, and negative numbers for zooming out.
* @param {number} [x] The zoom origin in the horizontal, defaults to the center of the selection.
* @param {number} [y] The zoom origin in the vertical, defaults to the center of the selection.
* @returns {CropperSelection} Returns `this` for chaining.
*/
$zoom(scale, x, y) {
if (!this.zoomable || scale === 0) {
return this;
}
if (scale < 0) {
scale = 1 / (1 - scale);
}
else {
scale += 1;
}
const { width, height } = this;
const newWidth = width * scale;
const newHeight = height * scale;
let newX = this.x;
let newY = this.y;
if (isNumber(x) && isNumber(y)) {
newX -= (newWidth - width) * ((x - this.x) / width);
newY -= (newHeight - height) * ((y - this.y) / height);
}
else {
// Zoom from the center of the selection
newX -= (newWidth - width) / 2;
newY -= (newHeight - height) / 2;
}
return this.$change(newX, newY, newWidth, newHeight);
}
/**
* Changes the position and/or size of the selection.
* @param {number} x The new position in the horizontal direction.
* @param {number} y The new position in the vertical direction.
* @param {number} [width] The new width.
* @param {number} [height] The new height.
* @param {number} [aspectRatio] The new aspect ratio for this change only.
* @param {number} [_force] Force change.
* @returns {CropperSelection} Returns `this` for chaining.
*/
$change(x, y, width = this.width, height = this.height, aspectRatio = this.aspectRatio, _force = false) {
if (this.$changing
|| !isNumber(x)
|| !isNumber(y)
|| !isNumber(width)
|| !isNumber(height)
|| width < 0
|| height < 0) {
return this;
}
if (isPositiveNumber(aspectRatio)) {
({ width, height } = getAdjustedSizes({ aspectRatio, width, height }, 'cover'));
}
if (!this.precise) {
x = Math.round(x);
y = Math.round(y);
width = Math.round(width);
height = Math.round(height);
}
if (x === this.x
&& y === this.y
&& width === this.width
&& height === this.height
&& Object.is(aspectRatio, this.aspectRatio)
&& !_force) {
return this;
}
if (this.hidden) {
this.hidden = false;
}
if (this.$emit(EVENT_CHANGE, {
x,
y,
width,
height,
}) === false) {
return this;
}
this.$changing = true;
this.x = x;
this.y = y;
this.width = width;
this.height = height;
this.$changing = false;
return this.$render();
}
/**
* Resets the selection to its initial position and size.
* @returns {CropperSelection} Returns `this` for chaining.
*/
$reset() {
const { x, y, width, height, } = this.$initialSelection;
return this.$change(x, y, width, height);
}
/**
* Clears the selection.
* @returns {CropperSelection} Returns `this` for chaining.
*/
$clear() {
this.$change(0, 0, 0, 0, NaN, true);
this.hidden = true;
return this;
}
/**
* Refreshes the position or size of the selection.
* @returns {CropperSelection} Returns `this` for chaining.
*/
$render() {
return this.$setStyles({
transform: `translate(${this.x}px, ${this.y}px)`,
width: this.width,
height: this.height,
});
}
/**
* Generates a real canvas element, with the image (selected area only) draw into if there is one.
* @param {object} [options] The available options.
* @param {number} [options.width] The width of the canvas.
* @param {number} [options.height] The height of the canvas.
* @param {Function} [options.beforeDraw] The function called before drawing the image onto the canvas.
* @returns {Promise} Returns a promise that resolves to the generated canvas element.
*/
$toCanvas(options) {
return new Promise((resolve, reject) => {
if (!this.isConnected) {
reject(new Error('The current element is not connected to the DOM.'));
return;
}
const canvas = document.createElement('canvas');
let { width, height } = this;
let scale = 1;
if (isPlainObject(options)
&& (isPositiveNumber(options.width) || isPositiveNumber(options.height))) {
({ width, height } = getAdjustedSizes({
aspectRatio: width / height,
width: options.width,
height: options.height,
}));
scale = width / this.width;
}
canvas.width = width;
canvas.height = height;
if (!this.$canvas) {
resolve(canvas);
return;
}
const cropperImage = this.$canvas.querySelector(this.$getTagNameOf(CROPPER_IMAGE));
if (!cropperImage) {
resolve(canvas);
return;
}
cropperImage.$ready().then((image) => {
const context = canvas.getContext('2d');
if (context) {
const [a, b, c, d, e, f] = cropperImage.$getTransform();
const offsetX = -this.x;
const offsetY = -this.y;
const translateX = ((offsetX * d) - (c * offsetY)) / ((a * d) - (c * b));
const translateY = ((offsetY * a) - (b * offsetX)) / ((a * d) - (c * b));
let newE = a * translateX + c * translateY + e;
let newF = b * translateX + d * translateY + f;
let destWidth = image.naturalWidth;
let destHeight = image.naturalHeight;
if (scale !== 1) {
newE *= scale;
newF *= scale;
destWidth *= scale;
destHeight *= scale;
}
const centerX = destWidth / 2;
const centerY = destHeight / 2;
context.fillStyle = 'transparent';
context.fillRect(0, 0, width, height);
if (isPlainObject(options) && isFunction(options.beforeDraw)) {
options.beforeDraw.call(this, context, canvas);
}
context.save();
// Move the transform origin to the center of the image.
// https://developer.mozilla.org/en-US/docs/Web/CSS/transform-origin
context.translate(centerX, centerY);
context.transform(a, b, c, d, newE, newF);
// Move the transform origin to the top-left of the image.
context.translate(-centerX, -centerY);
context.drawImage(image, 0, 0, destWidth, destHeight);
context.restore();
}
resolve(canvas);
}).catch(reject);
});
}
}
CropperSelection.$name = CROPPER_SELECTION;
CropperSelection.$version = '2.0.0-rc.2';
var style$2 = `:host{display:flex;flex-direction:column;position:relative;touch-action:none;-webkit-user-select:none;-moz-user-select:none;user-select:none}:host([bordered]){border:1px dashed var(--theme-color)}:host([covered]){bottom:0;left:0;position:absolute;right:0;top:0}:host>span{display:flex;flex:1}:host>span+span{border-top:1px dashed var(--theme-color)}:host>span>span{flex:1}:host>span>span+span{border-left:1px dashed var(--theme-color)}`;
class CropperGrid extends CropperElement {
constructor() {
super(...arguments);
this.$style = style$2;
this.bordered = false;
this.columns = 3;
this.covered = false;
this.rows = 3;
this.slottable = false;
this.themeColor = 'rgba(238, 238, 238, 0.5)';
}
static get observedAttributes() {
return super.observedAttributes.concat([
'bordered',
'columns',
'covered',
'rows',
]);
}
$propertyChangedCallback(name, oldValue, newValue) {
if (Object.is(newValue, oldValue)) {
return;
}
super.$propertyChangedCallback(name, oldValue, newValue);
if (name === 'rows' || name === 'columns') {
this.$nextTick(() => {
this.$render();
});
}
}
connectedCallback() {
super.connectedCallback();
this.$render();
}
$render() {
const shadow = this.$getShadowRoot();
const fragment = document.createDocumentFragment();
for (let i = 0; i < this.rows; i += 1) {
const row = document.createElement('span');
row.setAttribute('role', 'row');
for (let j = 0; j < this.columns; j += 1) {
const column = document.createElement('span');
column.setAttribute('role', 'gridcell');
row.appendChild(column);
}
fragment.appendChild(row);
}
if (shadow) {
shadow.innerHTML = '';
shadow.appendChild(fragment);
}
}
}
CropperGrid.$name = CROPPER_GIRD;
CropperGrid.$version = '2.0.0-rc.2';
var style$1 = `:host{display:inline-block;height:1em;position:relative;touch-action:none;-webkit-user-select:none;-moz-user-select:none;user-select:none;vertical-align:middle;width:1em}:host:after,:host:before{background-color:var(--theme-color);content:"";display:block;position:absolute}:host:before{height:1px;left:0;top:50%;transform:translateY(-50%);width:100%}:host:after{height:100%;left:50%;top:0;transform:translateX(-50%);width:1px}:host([centered]){left:50%;position:absolute;top:50%;transform:translate(-50%,-50%)}`;
class CropperCrosshair extends CropperElement {
constructor() {
super(...arguments);
this.$style = style$1;
this.centered = false;
this.slottable = false;
this.themeColor = 'rgba(238, 238, 238, 0.5)';
}
static get observedAttributes() {
return super.observedAttributes.concat([
'centered',
]);
}
}
CropperCrosshair.$name = CROPPER_CROSSHAIR;
CropperCrosshair.$version = '2.0.0-rc.2';
var style = `:host{display:block;height:100%;overflow:hidden;position:relative;width:100%}`;
const canvasCache = new WeakMap();
const imageCache = new WeakMap();
const selectionCache = new WeakMap();
const sourceImageCache = new WeakMap();
const RESIZE_BOTH = 'both';
const RESIZE_HORIZONTAL = 'horizontal';
const RESIZE_VERTICAL = 'vertical';
const RESIZE_NONE = 'none';
class CropperViewer extends CropperElement {
constructor() {
super(...arguments);
this.$onSelectionChange = null;
this.$onSourceImageLoad = null;
this.$onSourceImageTransform = null;
this.$scale = 1;
this.$style = style;
this.resize = RESIZE_VERTICAL;
this.selection = '';
this.slottable = false;
}
set $image(element) {
imageCache.set(this, element);
}
get $image() {
return imageCache.get(this);
}
set $sourceImage(element) {
sourceImageCache.set(this, element);
}
get $sourceImage() {
return sourceImageCache.get(this);
}
set $canvas(element) {
canvasCache.set(this, element);
}
get $canvas() {
return canvasCache.get(this);
}
set $selection(element) {
selectionCache.set(this, element);
}
get $selection() {
return selectionCache.get(this);
}
static get observedAttributes() {
return super.observedAttributes.concat([
'resize',
'selection',
]);
}
connectedCallback() {
super.connectedCallback();
let $selection = null;
if (this.selection) {
$selection = this.ownerDocument.querySelector(this.selection);
}
else {
$selection = this.closest(this.$getTagNameOf(CROPPER_SELECTION));
}
if (isElement($selection)) {
this.$selection = $selection;
this.$onSelectionChange = this.$handleSelectionChange.bind(this);
on($selection, EVENT_CHANGE, this.$onSelectionChange);
const $canvas = $selection.closest(this.$getTagNameOf(CROPPER_CANVAS));
if ($canvas) {
this.$canvas = $canvas;
const $sourceImage = $canvas.querySelector(this.$getTagNameOf(CROPPER_IMAGE));
if ($sourceImage) {
this.$sourceImage = $sourceImage;
this.$image = $sourceImage.cloneNode(true);
this.$getShadowRoot().appendChild(this.$image);
this.$onSourceImageLoad = this.$handleSourceImageLoad.bind(this);
this.$onSourceImageTransform = this.$handleSourceImageTransform.bind(this);
on($sourceImage.$image, EVENT_LOAD, this.$onSourceImageLoad);
on($sourceImage, EVENT_TRANSFORM, this.$onSourceImageTransform);
}
}
this.$render();
}
}
disconnectedCallback() {
const { $selection, $sourceImage } = this;
if ($selection && this.$onSelectionChange) {
off($selection, EVENT_CHANGE, this.$onSelectionChange);
this.$onSelectionChange = null;
}
if ($sourceImage && this.$onSourceImageLoad) {
off($sourceImage.$image, EVENT_LOAD, this.$onSourceImageLoad);
this.$onSourceImageLoad = null;
}
if ($sourceImage && this.$onSourceImageTransform) {
off($sourceImage, EVENT_TRANSFORM, this.$onSourceImageTransform);
this.$onSourceImageTransform = null;
}
super.disconnectedCallback();
}
$handleSelectionChange(event) {
this.$render(event.detail);
}
$handleSourceImageLoad() {
const { $image, $sourceImage } = this;
const oldSrc = $image.getAttribute('src');
const newSrc = $sourceImage.getAttribute('src');
if (newSrc && newSrc !== oldSrc) {
$image.setAttribute('src', newSrc);
$image.$ready(() => {
setTimeout(() => {
this.$render();
}, 50);
});
}
}
$handleSourceImageTransform(event) {
this.$render(undefined, event.detail.matrix);
}
$render(selection, matrix) {
const { $canvas, $selection } = this;
if (!selection && !$selection.hidden) {
selection = $selection;
}
if (!selection || (selection.x === 0
&& selection.y === 0
&& selection.width === 0
&& selection.height === 0)) {
selection = {
x: 0,
y: 0,
width: $canvas.offsetWidth,
height: $canvas.offsetHeight,
};
}
const { x, y, width, height, } = selection;
const styles = {};
const { clientWidth, clientHeight } = this;
let newWidth = clientWidth;
let newHeight = clientHeight;
let scale = NaN;
switch (this.resize) {
case RESIZE_BOTH:
scale = 1;
newWidth = width;
newHeight = height;
styles.width = width;
styles.height = height;
break;
case RESIZE_HORIZONTAL:
scale = height > 0 ? clientHeight / height : 0;
newWidth = width * scale;
styles.width = newWidth;
break;
case RESIZE_VERTICAL:
scale = width > 0 ? clientWidth / width : 0;
newHeight = height * scale;
styles.height = newHeight;
break;
case RESIZE_NONE:
default:
if (clientWidth > 0) {
scale = width > 0 ? clientWidth / width : 0;
}
else if (clientHeight > 0) {
scale = height > 0 ? clientHeight / height : 0;
}
}
this.$scale = scale;
this.$setStyles(styles);
if (this.$sourceImage) {
this.$transformImageByOffset(matrix !== null && matrix !== void 0 ? matrix : this.$sourceImage.$getTransform(), -x, -y);
}
}
$transformImageByOffset(matrix, x, y) {
const { $image, $scale, $sourceImage, } = this;
if ($sourceImage && $image && $scale >= 0) {
const [a, b, c, d, e, f] = matrix;
const translateX = ((x * d) - (c * y)) / ((a * d) - (c * b));
const translateY = ((y * a) - (b * x)) / ((a * d) - (c * b));
const newE = a * translateX + c * translateY + e;
const newF = b * translateX + d * translateY + f;
$image.$ready((image) => {
this.$setStyles.call($image, {
width: image.naturalWidth * $scale,
height: image.naturalHeight * $scale,
});
});
$image.$setTransform(a, b, c, d, newE * $scale, newF * $scale);
}
}
}
CropperViewer.$name = CROPPER_VIEWER;
CropperViewer.$version = '2.0.0-rc.2';
var DEFAULT_TEMPLATE = (''
+ ''
+ ''
+ ''
+ ''
+ ''
+ ''
+ ''
+ ''
+ ''
+ ''
+ ''
+ ''
+ ''
+ ''
+ ''
+ ''
+ '');
const REGEXP_ALLOWED_ELEMENTS = /^img|canvas$/;
const REGEXP_BLOCKED_TAGS = /<(\/?(?:script|style)[^>]*)>/gi;
const DEFAULT_OPTIONS = {
template: DEFAULT_TEMPLATE,
};
CropperCanvas.$define();
CropperCrosshair.$define();
CropperGrid.$define();
CropperHandle.$define();
CropperImage.$define();
CropperSelection.$define();
CropperShade.$define();
CropperViewer.$define();
class Cropper {
constructor(element, options) {
this.options = DEFAULT_OPTIONS;
if (isString(element)) {
element = document.querySelector(element);
}
if (!isElement(element) || !REGEXP_ALLOWED_ELEMENTS.test(element.localName)) {
throw new Error('The first argument is required and must be an ![]()
or