mirror of
https://github.com/tenrok/OverlayScrollbars.git
synced 2026-06-10 23:12:31 +03:00
Rene Haas
2520 lines
82 KiB
JavaScript
2520 lines
82 KiB
JavaScript
function createCache(options, update) {
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const {
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_initialValue,
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_equal,
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_alwaysUpdateValues
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} = options;
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let _value = _initialValue;
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let _previous;
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const cacheUpdateContextual = (newValue, force) => {
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const curr = _value;
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const newVal = newValue;
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const changed = force || (_equal ? !_equal(curr, newVal) : curr !== newVal);
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if (changed || _alwaysUpdateValues) {
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_value = newVal;
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_previous = curr;
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}
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return [_value, changed, _previous];
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};
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const cacheUpdateIsolated = force => cacheUpdateContextual(update(_value, _previous), force);
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const getCurrentCache = force => [_value, !!force, _previous];
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return [update ? cacheUpdateIsolated : cacheUpdateContextual, getCurrentCache];
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}
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const ElementNodeType = Node.ELEMENT_NODE;
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const {
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toString,
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hasOwnProperty: hasOwnProperty$1
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} = Object.prototype;
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function isUndefined(obj) {
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return obj === undefined;
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}
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function isNull(obj) {
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return obj === null;
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}
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const type = obj => isUndefined(obj) || isNull(obj) ? `${obj}` : toString.call(obj).replace(/^\[object (.+)\]$/, '$1').toLowerCase();
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function isNumber(obj) {
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return typeof obj === 'number';
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}
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function isString(obj) {
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return typeof obj === 'string';
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}
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function isBoolean(obj) {
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return typeof obj === 'boolean';
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}
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function isFunction(obj) {
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return typeof obj === 'function';
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}
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function isArray(obj) {
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return Array.isArray(obj);
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}
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function isObject(obj) {
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return typeof obj === 'object' && !isArray(obj) && !isNull(obj);
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}
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function isArrayLike(obj) {
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const length = !!obj && obj.length;
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const lengthCorrectFormat = isNumber(length) && length > -1 && length % 1 == 0;
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return isArray(obj) || !isFunction(obj) && lengthCorrectFormat ? length > 0 && isObject(obj) ? length - 1 in obj : true : false;
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}
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function isPlainObject(obj) {
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if (!obj || !isObject(obj) || type(obj) !== 'object') return false;
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let key;
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const cstr = 'constructor';
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const ctor = obj[cstr];
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const ctorProto = ctor && ctor.prototype;
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const hasOwnConstructor = hasOwnProperty$1.call(obj, cstr);
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const hasIsPrototypeOf = ctorProto && hasOwnProperty$1.call(ctorProto, 'isPrototypeOf');
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if (ctor && !hasOwnConstructor && !hasIsPrototypeOf) {
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return false;
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}
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for (key in obj) {}
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return isUndefined(key) || hasOwnProperty$1.call(obj, key);
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}
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function isHTMLElement(obj) {
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const instanceofObj = window.HTMLElement;
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return obj ? instanceofObj ? obj instanceof instanceofObj : obj.nodeType === ElementNodeType : false;
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}
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function isElement(obj) {
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const instanceofObj = window.Element;
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return obj ? instanceofObj ? obj instanceof instanceofObj : obj.nodeType === ElementNodeType : false;
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}
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function each(source, callback) {
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if (isArrayLike(source)) {
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for (let i = 0; i < source.length; i++) {
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if (callback(source[i], i, source) === false) {
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break;
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}
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}
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} else if (source) {
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each(Object.keys(source), key => callback(source[key], key, source));
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}
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return source;
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}
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const indexOf = (arr, item, fromIndex) => arr.indexOf(item, fromIndex);
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const push = (array, items, arrayIsSingleItem) => {
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!arrayIsSingleItem && !isString(items) && isArrayLike(items) ? Array.prototype.push.apply(array, items) : array.push(items);
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return array;
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};
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const from = arr => {
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if (Array.from && arr) {
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return Array.from(arr);
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}
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const result = [];
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if (arr instanceof Set) {
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arr.forEach(value => {
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push(result, value);
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});
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} else {
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each(arr, elm => {
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push(result, elm);
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});
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}
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return result;
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};
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const isEmptyArray = array => !!array && array.length === 0;
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const runEach = (arr, args) => {
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const runFn = fn => fn && fn.apply(undefined, args || []);
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if (arr instanceof Set) {
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arr.forEach(runFn);
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} else {
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each(arr, runFn);
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}
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};
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const hasOwnProperty = (obj, prop) => Object.prototype.hasOwnProperty.call(obj, prop);
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const keys = obj => obj ? Object.keys(obj) : [];
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function assignDeep(target, object1, object2, object3, object4, object5, object6) {
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const sources = [object1, object2, object3, object4, object5, object6];
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if ((typeof target !== 'object' || isNull(target)) && !isFunction(target)) {
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target = {};
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}
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each(sources, source => {
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each(keys(source), key => {
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const copy = source[key];
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if (target === copy) {
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return true;
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}
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const copyIsArray = isArray(copy);
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if (copy && (isPlainObject(copy) || copyIsArray)) {
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const src = target[key];
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let clone = src;
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if (copyIsArray && !isArray(src)) {
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clone = [];
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} else if (!copyIsArray && !isPlainObject(src)) {
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clone = {};
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}
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target[key] = assignDeep(clone, copy);
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} else {
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target[key] = copy;
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}
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});
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});
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return target;
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}
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function isEmptyObject(obj) {
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for (const name in obj) return false;
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return true;
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}
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function getSetProp(topLeft, fallback, elm, value) {
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if (isUndefined(value)) {
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return elm ? elm[topLeft] : fallback;
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}
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elm && (elm[topLeft] = value);
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}
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function attr(elm, attrName, value) {
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if (isUndefined(value)) {
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return elm ? elm.getAttribute(attrName) : null;
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}
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elm && elm.setAttribute(attrName, value);
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}
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const removeAttr = (elm, attrName) => {
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elm && elm.removeAttribute(attrName);
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};
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function scrollLeft(elm, value) {
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return getSetProp('scrollLeft', 0, elm, value);
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}
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function scrollTop(elm, value) {
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return getSetProp('scrollTop', 0, elm, value);
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}
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const elmPrototype = Element.prototype;
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const find = (selector, elm) => {
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const arr = [];
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const rootElm = elm ? isElement(elm) ? elm : null : document;
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return rootElm ? push(arr, rootElm.querySelectorAll(selector)) : arr;
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};
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const is = (elm, selector) => {
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if (isElement(elm)) {
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const fn = elmPrototype.matches || elmPrototype.msMatchesSelector;
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return fn.call(elm, selector);
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}
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return false;
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};
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const contents = elm => elm ? from(elm.childNodes) : [];
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const parent = elm => elm ? elm.parentElement : null;
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const before = (parentElm, preferredAnchor, insertedElms) => {
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if (insertedElms) {
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let anchor = preferredAnchor;
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let fragment;
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if (parentElm) {
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if (isArrayLike(insertedElms)) {
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fragment = document.createDocumentFragment();
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each(insertedElms, insertedElm => {
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if (insertedElm === anchor) {
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anchor = insertedElm.previousSibling;
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}
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fragment.appendChild(insertedElm);
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});
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} else {
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fragment = insertedElms;
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}
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if (preferredAnchor) {
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if (!anchor) {
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anchor = parentElm.firstChild;
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} else if (anchor !== preferredAnchor) {
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anchor = anchor.nextSibling;
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}
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}
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parentElm.insertBefore(fragment, anchor || null);
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}
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}
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};
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const appendChildren = (node, children) => {
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before(node, null, children);
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};
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const prependChildren = (node, children) => {
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before(node, node && node.firstChild, children);
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};
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const insertBefore = (node, insertedNodes) => {
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before(parent(node), node, insertedNodes);
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};
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const insertAfter = (node, insertedNodes) => {
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before(parent(node), node && node.nextSibling, insertedNodes);
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};
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const removeElements = nodes => {
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if (isArrayLike(nodes)) {
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each(from(nodes), e => removeElements(e));
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} else if (nodes) {
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const parentElm = parent(nodes);
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if (parentElm) {
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parentElm.removeChild(nodes);
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}
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}
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};
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const createDiv = classNames => {
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const div = document.createElement('div');
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if (classNames) {
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attr(div, 'class', classNames);
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}
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return div;
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};
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const createDOM = html => {
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const createdDiv = createDiv();
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createdDiv.innerHTML = html.trim();
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return each(contents(createdDiv), elm => removeElements(elm));
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};
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const firstLetterToUpper = str => str.charAt(0).toUpperCase() + str.slice(1);
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const getDummyStyle = () => createDiv().style;
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const cssPrefixes = ['-webkit-', '-moz-', '-o-', '-ms-'];
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const jsPrefixes = ['WebKit', 'Moz', 'O', 'MS', 'webkit', 'moz', 'o', 'ms'];
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const jsCache = {};
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const cssCache = {};
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const cssProperty = name => {
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let result = cssCache[name];
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if (hasOwnProperty(cssCache, name)) {
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return result;
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}
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const uppercasedName = firstLetterToUpper(name);
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const elmStyle = getDummyStyle();
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each(cssPrefixes, prefix => {
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const prefixWithoutDashes = prefix.replace(/-/g, '');
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const resultPossibilities = [name, prefix + name, prefixWithoutDashes + uppercasedName, firstLetterToUpper(prefixWithoutDashes) + uppercasedName];
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return !(result = resultPossibilities.find(resultPossibility => elmStyle[resultPossibility] !== undefined));
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});
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return cssCache[name] = result || '';
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};
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const jsAPI = name => {
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let result = jsCache[name] || window[name];
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if (hasOwnProperty(jsCache, name)) {
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return result;
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}
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each(jsPrefixes, prefix => {
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result = result || window[prefix + firstLetterToUpper(name)];
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return !result;
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});
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jsCache[name] = result;
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return result;
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};
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const MutationObserverConstructor = jsAPI('MutationObserver');
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const IntersectionObserverConstructor = jsAPI('IntersectionObserver');
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const ResizeObserverConstructor = jsAPI('ResizeObserver');
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const cAF = jsAPI('cancelAnimationFrame');
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const rAF = jsAPI('requestAnimationFrame');
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const rnothtmlwhite = /[^\x20\t\r\n\f]+/g;
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const classListAction = (elm, className, action) => {
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let clazz;
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let i = 0;
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let result = false;
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if (elm && isString(className)) {
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const classes = className.match(rnothtmlwhite) || [];
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result = classes.length > 0;
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while (clazz = classes[i++]) {
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result = !!action(elm.classList, clazz) && result;
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}
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}
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return result;
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};
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const removeClass = (elm, className) => {
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classListAction(elm, className, (classList, clazz) => classList.remove(clazz));
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};
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const addClass = (elm, className) => {
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classListAction(elm, className, (classList, clazz) => classList.add(clazz));
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return removeClass.bind(0, elm, className);
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};
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const diffClass = (classNameA, classNameB) => {
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const classNameASplit = classNameA && classNameA.split(' ');
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const classNameBSplit = classNameB && classNameB.split(' ');
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const tempObj = {};
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each(classNameASplit, className => {
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tempObj[className] = 1;
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});
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each(classNameBSplit, className => {
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if (tempObj[className]) {
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delete tempObj[className];
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} else {
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tempObj[className] = 1;
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}
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});
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return keys(tempObj);
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};
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const equal = (a, b, props, propMutation) => {
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if (a && b) {
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let result = true;
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each(props, prop => {
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const compareA = propMutation ? propMutation(a[prop]) : a[prop];
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const compareB = propMutation ? propMutation(b[prop]) : b[prop];
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if (compareA !== compareB) {
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result = false;
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}
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});
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return result;
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}
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return false;
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};
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const equalWH = (a, b) => equal(a, b, ['w', 'h']);
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const equalXY = (a, b) => equal(a, b, ['x', 'y']);
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const equalTRBL = (a, b) => equal(a, b, ['t', 'r', 'b', 'l']);
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const equalBCRWH = (a, b, round) => equal(a, b, ['width', 'height'], round && (value => Math.round(value)));
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const clearTimeouts = id => {
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id && window.clearTimeout(id);
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id && cAF(id);
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};
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const noop = () => {};
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const debounce = (functionToDebounce, options) => {
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let timeoutId;
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let maxTimeoutId;
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let prevArguments;
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let latestArguments;
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const {
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_timeout,
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_maxDelay,
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_mergeParams
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} = options || {};
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const setT = window.setTimeout;
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const invokeFunctionToDebounce = function invokeFunctionToDebounce(args) {
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clearTimeouts(timeoutId);
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clearTimeouts(maxTimeoutId);
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maxTimeoutId = timeoutId = prevArguments = undefined;
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functionToDebounce.apply(this, args);
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};
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const mergeParms = curr => _mergeParams && prevArguments ? _mergeParams(prevArguments, curr) : curr;
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const flush = () => {
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if (timeoutId) {
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invokeFunctionToDebounce(mergeParms(latestArguments) || latestArguments);
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}
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};
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const debouncedFn = function debouncedFn() {
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const args = from(arguments);
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const finalTimeout = isFunction(_timeout) ? _timeout() : _timeout;
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const hasTimeout = isNumber(finalTimeout) && finalTimeout >= 0;
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if (hasTimeout) {
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const finalMaxWait = isFunction(_maxDelay) ? _maxDelay() : _maxDelay;
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const hasMaxWait = isNumber(finalMaxWait) && finalMaxWait >= 0;
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const setTimeoutFn = finalTimeout > 0 ? setT : rAF;
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const mergeParamsResult = mergeParms(args);
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const invokedArgs = mergeParamsResult || args;
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const boundInvoke = invokeFunctionToDebounce.bind(0, invokedArgs);
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clearTimeouts(timeoutId);
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timeoutId = setTimeoutFn(boundInvoke, finalTimeout);
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if (hasMaxWait && !maxTimeoutId) {
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maxTimeoutId = setT(flush, finalMaxWait);
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}
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prevArguments = latestArguments = invokedArgs;
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} else {
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invokeFunctionToDebounce(args);
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}
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};
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debouncedFn._flush = flush;
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return debouncedFn;
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};
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|
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const cssNumber = {
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opacity: 1,
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zindex: 1
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};
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|
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const parseToZeroOrNumber = (value, toFloat) => {
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const num = toFloat ? parseFloat(value) : parseInt(value, 10);
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return Number.isNaN(num) ? 0 : num;
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};
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const adaptCSSVal = (prop, val) => !cssNumber[prop.toLowerCase()] && isNumber(val) ? `${val}px` : val;
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const getCSSVal = (elm, computedStyle, prop) => computedStyle != null ? computedStyle[prop] || computedStyle.getPropertyValue(prop) : elm.style[prop];
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const setCSSVal = (elm, prop, val) => {
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try {
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if (elm) {
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const {
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style: elmStyle
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} = elm;
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if (!isUndefined(elmStyle[prop])) {
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elmStyle[prop] = adaptCSSVal(prop, val);
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} else {
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elmStyle.setProperty(prop, val);
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}
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}
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} catch (e) {}
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};
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function style(elm, styles) {
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const getSingleStyle = isString(styles);
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const getStyles = isArray(styles) || getSingleStyle;
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if (getStyles) {
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let getStylesResult = getSingleStyle ? '' : {};
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if (elm) {
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const computedStyle = window.getComputedStyle(elm, null);
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getStylesResult = getSingleStyle ? getCSSVal(elm, computedStyle, styles) : styles.reduce((result, key) => {
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result[key] = getCSSVal(elm, computedStyle, key);
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return result;
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}, getStylesResult);
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}
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return getStylesResult;
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}
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each(keys(styles), key => setCSSVal(elm, key, styles[key]));
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}
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const topRightBottomLeft = (elm, propertyPrefix, propertySuffix) => {
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const finalPrefix = propertyPrefix ? `${propertyPrefix}-` : '';
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const finalSuffix = propertySuffix ? `-${propertySuffix}` : '';
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|
const top = `${finalPrefix}top${finalSuffix}`;
|
|
const right = `${finalPrefix}right${finalSuffix}`;
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const bottom = `${finalPrefix}bottom${finalSuffix}`;
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const left = `${finalPrefix}left${finalSuffix}`;
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const result = style(elm, [top, right, bottom, left]);
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return {
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t: parseToZeroOrNumber(result[top]),
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r: parseToZeroOrNumber(result[right]),
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b: parseToZeroOrNumber(result[bottom]),
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l: parseToZeroOrNumber(result[left])
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};
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};
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|
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const zeroObj$1 = {
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w: 0,
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h: 0
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};
|
|
const windowSize = () => ({
|
|
w: window.innerWidth,
|
|
h: window.innerHeight
|
|
});
|
|
const offsetSize = elm => elm ? {
|
|
w: elm.offsetWidth,
|
|
h: elm.offsetHeight
|
|
} : zeroObj$1;
|
|
const clientSize = elm => elm ? {
|
|
w: elm.clientWidth,
|
|
h: elm.clientHeight
|
|
} : zeroObj$1;
|
|
const scrollSize = elm => elm ? {
|
|
w: elm.scrollWidth,
|
|
h: elm.scrollHeight
|
|
} : zeroObj$1;
|
|
const fractionalSize = elm => {
|
|
const cssHeight = parseFloat(style(elm, 'height')) || 0;
|
|
const cssWidth = parseFloat(style(elm, 'height')) || 0;
|
|
return {
|
|
w: cssWidth - Math.round(cssWidth),
|
|
h: cssHeight - Math.round(cssHeight)
|
|
};
|
|
};
|
|
const getBoundingClientRect = elm => elm.getBoundingClientRect();
|
|
|
|
let passiveEventsSupport;
|
|
|
|
const supportPassiveEvents = () => {
|
|
if (isUndefined(passiveEventsSupport)) {
|
|
passiveEventsSupport = false;
|
|
|
|
try {
|
|
window.addEventListener('test', null, Object.defineProperty({}, 'passive', {
|
|
get: function () {
|
|
passiveEventsSupport = true;
|
|
}
|
|
}));
|
|
} catch (e) {}
|
|
}
|
|
|
|
return passiveEventsSupport;
|
|
};
|
|
|
|
const splitEventNames = eventNames => eventNames.split(' ');
|
|
|
|
const off = (target, eventNames, listener, capture) => {
|
|
each(splitEventNames(eventNames), eventName => {
|
|
target.removeEventListener(eventName, listener, capture);
|
|
});
|
|
};
|
|
const on = (target, eventNames, listener, options) => {
|
|
const doSupportPassiveEvents = supportPassiveEvents();
|
|
const passive = doSupportPassiveEvents && options && options._passive || false;
|
|
const capture = options && options._capture || false;
|
|
const once = options && options._once || false;
|
|
const offListeners = [];
|
|
const nativeOptions = doSupportPassiveEvents ? {
|
|
passive,
|
|
capture
|
|
} : capture;
|
|
each(splitEventNames(eventNames), eventName => {
|
|
const finalListener = once ? evt => {
|
|
target.removeEventListener(eventName, finalListener, capture);
|
|
listener && listener(evt);
|
|
} : listener;
|
|
push(offListeners, off.bind(null, target, eventName, finalListener, capture));
|
|
target.addEventListener(eventName, finalListener, nativeOptions);
|
|
});
|
|
return runEach.bind(0, offListeners);
|
|
};
|
|
const stopPropagation = evt => evt.stopPropagation();
|
|
const preventDefault = evt => evt.preventDefault();
|
|
const stopAndPrevent = evt => stopPropagation(evt) || preventDefault(evt);
|
|
|
|
const zeroObj = {
|
|
x: 0,
|
|
y: 0
|
|
};
|
|
const absoluteCoordinates = elm => {
|
|
const rect = elm ? getBoundingClientRect(elm) : 0;
|
|
return rect ? {
|
|
x: rect.left + window.pageYOffset,
|
|
y: rect.top + window.pageXOffset
|
|
} : zeroObj;
|
|
};
|
|
|
|
const manageListener = (callback, listener) => {
|
|
each(isArray(listener) ? listener : [listener], callback);
|
|
};
|
|
|
|
const createEventListenerHub = initialEventListeners => {
|
|
const events = new Map();
|
|
|
|
const removeEvent = (name, listener) => {
|
|
if (name) {
|
|
const eventSet = events.get(name);
|
|
manageListener(currListener => {
|
|
if (eventSet) {
|
|
eventSet[currListener ? 'delete' : 'clear'](currListener);
|
|
}
|
|
}, listener);
|
|
} else {
|
|
events.forEach(eventSet => {
|
|
eventSet.clear();
|
|
});
|
|
events.clear();
|
|
}
|
|
};
|
|
|
|
const addEvent = (name, listener) => {
|
|
const eventSet = events.get(name) || new Set();
|
|
events.set(name, eventSet);
|
|
manageListener(currListener => {
|
|
currListener && eventSet.add(currListener);
|
|
}, listener);
|
|
return removeEvent.bind(0, name, listener);
|
|
};
|
|
|
|
const triggerEvent = (name, args) => {
|
|
const eventSet = events.get(name);
|
|
each(from(eventSet), event => {
|
|
if (args) {
|
|
event(args);
|
|
} else {
|
|
event();
|
|
}
|
|
});
|
|
};
|
|
|
|
const initialListenerKeys = keys(initialEventListeners);
|
|
each(initialListenerKeys, key => {
|
|
addEvent(key, initialEventListeners[key]);
|
|
});
|
|
return [addEvent, removeEvent, triggerEvent];
|
|
};
|
|
|
|
const getPropByPath = (obj, path) => obj ? path.split('.').reduce((o, prop) => o && hasOwnProperty(o, prop) ? o[prop] : undefined, obj) : undefined;
|
|
|
|
const createOptionCheck = (options, changedOptions, force) => path => [getPropByPath(options, path), force || getPropByPath(changedOptions, path) !== undefined];
|
|
const createState = initialState => {
|
|
let state = initialState;
|
|
return [() => state, newState => {
|
|
state = assignDeep({}, state, newState);
|
|
}];
|
|
};
|
|
|
|
const classNameEnvironment = 'os-environment';
|
|
const classNameEnvironmentFlexboxGlue = `${classNameEnvironment}-flexbox-glue`;
|
|
const classNameEnvironmentFlexboxGlueMax = `${classNameEnvironmentFlexboxGlue}-max`;
|
|
const dataAttributeHost = 'data-overlayscrollbars';
|
|
const classNamePadding = 'os-padding';
|
|
const classNameViewport = 'os-viewport';
|
|
const classNameViewportArrange = `${classNameViewport}-arrange`;
|
|
const classNameContent = 'os-content';
|
|
const classNameViewportScrollbarStyling = `${classNameViewport}-scrollbar-styled`;
|
|
const classNameOverflowVisible = `os-overflow-visible`;
|
|
const classNameSizeObserver = 'os-size-observer';
|
|
const classNameSizeObserverAppear = `${classNameSizeObserver}-appear`;
|
|
const classNameSizeObserverListener = `${classNameSizeObserver}-listener`;
|
|
const classNameSizeObserverListenerScroll = `${classNameSizeObserverListener}-scroll`;
|
|
const classNameSizeObserverListenerItem = `${classNameSizeObserverListener}-item`;
|
|
const classNameSizeObserverListenerItemFinal = `${classNameSizeObserverListenerItem}-final`;
|
|
const classNameTrinsicObserver = 'os-trinsic-observer';
|
|
const classNameScrollbar = 'os-scrollbar';
|
|
const classNameScrollbarHorizontal = `${classNameScrollbar}-horizontal`;
|
|
const classNameScrollbarVertical = `${classNameScrollbar}-vertical`;
|
|
const classNameScrollbarTrack = 'os-scrollbar-track';
|
|
const classNameScrollbarHandle = 'os-scrollbar-handle';
|
|
|
|
const stringify = value => JSON.stringify(value, (_, val) => {
|
|
if (isFunction(val)) {
|
|
throw new Error();
|
|
}
|
|
|
|
return val;
|
|
});
|
|
|
|
const defaultOptions = {
|
|
resize: 'none',
|
|
paddingAbsolute: false,
|
|
updating: {
|
|
elementEvents: [['img', 'load']],
|
|
attributes: null,
|
|
debounce: [0, 33]
|
|
},
|
|
overflow: {
|
|
x: 'scroll',
|
|
y: 'scroll'
|
|
},
|
|
scrollbars: {
|
|
visibility: 'auto',
|
|
autoHide: 'never',
|
|
autoHideDelay: 800,
|
|
dragScroll: true,
|
|
clickScroll: false,
|
|
touch: true
|
|
},
|
|
textarea: {
|
|
dynWidth: false,
|
|
dynHeight: false,
|
|
inheritedAttrs: ['style', 'class']
|
|
},
|
|
nativeScrollbarsOverlaid: {
|
|
show: false,
|
|
initialize: false
|
|
},
|
|
callbacks: {
|
|
onUpdated: null
|
|
}
|
|
};
|
|
const getOptionsDiff = (currOptions, newOptions) => {
|
|
const diff = {};
|
|
const optionsKeys = keys(newOptions).concat(keys(currOptions));
|
|
each(optionsKeys, optionKey => {
|
|
const currOptionValue = currOptions[optionKey];
|
|
const newOptionValue = newOptions[optionKey];
|
|
|
|
if (isObject(currOptionValue) && isObject(newOptionValue)) {
|
|
assignDeep(diff[optionKey] = {}, getOptionsDiff(currOptionValue, newOptionValue));
|
|
} else if (hasOwnProperty(newOptions, optionKey) && newOptionValue !== currOptionValue) {
|
|
let isDiff = true;
|
|
|
|
if (isArray(currOptionValue) || isArray(newOptionValue)) {
|
|
try {
|
|
if (stringify(currOptionValue) === stringify(newOptionValue)) {
|
|
isDiff = false;
|
|
}
|
|
} catch (_unused) {}
|
|
}
|
|
|
|
if (isDiff) {
|
|
diff[optionKey] = newOptionValue;
|
|
}
|
|
}
|
|
});
|
|
return diff;
|
|
};
|
|
|
|
let environmentInstance;
|
|
const {
|
|
abs,
|
|
round
|
|
} = Math;
|
|
|
|
const diffBiggerThanOne = (valOne, valTwo) => {
|
|
const absValOne = abs(valOne);
|
|
const absValTwo = abs(valTwo);
|
|
return !(absValOne === absValTwo || absValOne + 1 === absValTwo || absValOne - 1 === absValTwo);
|
|
};
|
|
|
|
const getNativeScrollbarSize = (body, measureElm, measureElmChild) => {
|
|
appendChildren(body, measureElm);
|
|
const cSize = clientSize(measureElm);
|
|
const oSize = offsetSize(measureElm);
|
|
const fSize = fractionalSize(measureElmChild);
|
|
return {
|
|
x: oSize.h - cSize.h + fSize.h,
|
|
y: oSize.w - cSize.w + fSize.w
|
|
};
|
|
};
|
|
|
|
const getNativeScrollbarStyling = testElm => {
|
|
let result = false;
|
|
const revertClass = addClass(testElm, classNameViewportScrollbarStyling);
|
|
|
|
try {
|
|
result = style(testElm, cssProperty('scrollbar-width')) === 'none' || window.getComputedStyle(testElm, '::-webkit-scrollbar').getPropertyValue('display') === 'none';
|
|
} catch (ex) {}
|
|
|
|
revertClass();
|
|
return result;
|
|
};
|
|
|
|
const getRtlScrollBehavior = (parentElm, childElm) => {
|
|
const strHidden = 'hidden';
|
|
style(parentElm, {
|
|
overflowX: strHidden,
|
|
overflowY: strHidden,
|
|
direction: 'rtl'
|
|
});
|
|
scrollLeft(parentElm, 0);
|
|
const parentOffset = absoluteCoordinates(parentElm);
|
|
const childOffset = absoluteCoordinates(childElm);
|
|
scrollLeft(parentElm, -999);
|
|
const childOffsetAfterScroll = absoluteCoordinates(childElm);
|
|
return {
|
|
i: parentOffset.x === childOffset.x,
|
|
n: childOffset.x !== childOffsetAfterScroll.x
|
|
};
|
|
};
|
|
|
|
const getFlexboxGlue = (parentElm, childElm) => {
|
|
const revertFbxGlue = addClass(parentElm, classNameEnvironmentFlexboxGlue);
|
|
const minOffsetsizeParent = getBoundingClientRect(parentElm);
|
|
const minOffsetsize = getBoundingClientRect(childElm);
|
|
const supportsMin = equalBCRWH(minOffsetsize, minOffsetsizeParent, true);
|
|
const revertFbxGlueMax = addClass(parentElm, classNameEnvironmentFlexboxGlueMax);
|
|
const maxOffsetsizeParent = getBoundingClientRect(parentElm);
|
|
const maxOffsetsize = getBoundingClientRect(childElm);
|
|
const supportsMax = equalBCRWH(maxOffsetsize, maxOffsetsizeParent, true);
|
|
revertFbxGlue();
|
|
revertFbxGlueMax();
|
|
return supportsMin && supportsMax;
|
|
};
|
|
|
|
const getWindowDPR = () => {
|
|
const dDPI = window.screen.deviceXDPI || 0;
|
|
const sDPI = window.screen.logicalXDPI || 1;
|
|
return window.devicePixelRatio || dDPI / sDPI;
|
|
};
|
|
|
|
const getDefaultInitializationStrategy = nativeScrollbarStyling => ({
|
|
_host: null,
|
|
_viewport: null,
|
|
_padding: !nativeScrollbarStyling,
|
|
_content: false,
|
|
_scrollbarsSlot: null
|
|
});
|
|
|
|
const createEnvironment = () => {
|
|
const {
|
|
body
|
|
} = document;
|
|
const envDOM = createDOM(`<div class="${classNameEnvironment}"><div></div></div>`);
|
|
const envElm = envDOM[0];
|
|
const envChildElm = envElm.firstChild;
|
|
const onChangedListener = new Set();
|
|
const [updateNativeScrollbarSizeCache, getNativeScrollbarSizeCache] = createCache({
|
|
_initialValue: getNativeScrollbarSize(body, envElm, envChildElm),
|
|
_equal: equalXY
|
|
});
|
|
const [nativeScrollbarSize] = getNativeScrollbarSizeCache();
|
|
const nativeScrollbarStyling = getNativeScrollbarStyling(envElm);
|
|
const nativeScrollbarIsOverlaid = {
|
|
x: nativeScrollbarSize.x === 0,
|
|
y: nativeScrollbarSize.y === 0
|
|
};
|
|
const initializationStrategy = getDefaultInitializationStrategy(nativeScrollbarStyling);
|
|
const defaultDefaultOptions = assignDeep({}, defaultOptions);
|
|
const env = {
|
|
_nativeScrollbarSize: nativeScrollbarSize,
|
|
_nativeScrollbarIsOverlaid: nativeScrollbarIsOverlaid,
|
|
_nativeScrollbarStyling: nativeScrollbarStyling,
|
|
_cssCustomProperties: style(envElm, 'zIndex') === '-1',
|
|
_rtlScrollBehavior: getRtlScrollBehavior(envElm, envChildElm),
|
|
_flexboxGlue: getFlexboxGlue(envElm, envChildElm),
|
|
|
|
_addListener(listener) {
|
|
onChangedListener.add(listener);
|
|
return () => onChangedListener.delete(listener);
|
|
},
|
|
|
|
_getInitializationStrategy: assignDeep.bind(0, {}, initializationStrategy),
|
|
|
|
_setInitializationStrategy(newInitializationStrategy) {
|
|
assignDeep(initializationStrategy, newInitializationStrategy);
|
|
},
|
|
|
|
_getDefaultOptions: assignDeep.bind(0, {}, defaultDefaultOptions),
|
|
|
|
_setDefaultOptions(newDefaultOptions) {
|
|
assignDeep(defaultDefaultOptions, newDefaultOptions);
|
|
},
|
|
|
|
_defaultInitializationStrategy: assignDeep({}, initializationStrategy),
|
|
_defaultDefaultOptions: assignDeep({}, defaultDefaultOptions)
|
|
};
|
|
removeAttr(envElm, 'style');
|
|
removeElements(envElm);
|
|
|
|
if (!nativeScrollbarStyling && (!nativeScrollbarIsOverlaid.x || !nativeScrollbarIsOverlaid.y)) {
|
|
let size = windowSize();
|
|
let dpr = getWindowDPR();
|
|
window.addEventListener('resize', () => {
|
|
if (onChangedListener.size) {
|
|
const sizeNew = windowSize();
|
|
const deltaSize = {
|
|
w: sizeNew.w - size.w,
|
|
h: sizeNew.h - size.h
|
|
};
|
|
if (deltaSize.w === 0 && deltaSize.h === 0) return;
|
|
const deltaAbsSize = {
|
|
w: abs(deltaSize.w),
|
|
h: abs(deltaSize.h)
|
|
};
|
|
const deltaAbsRatio = {
|
|
w: abs(round(sizeNew.w / (size.w / 100.0))),
|
|
h: abs(round(sizeNew.h / (size.h / 100.0)))
|
|
};
|
|
const dprNew = getWindowDPR();
|
|
const deltaIsBigger = deltaAbsSize.w > 2 && deltaAbsSize.h > 2;
|
|
const difference = !diffBiggerThanOne(deltaAbsRatio.w, deltaAbsRatio.h);
|
|
const dprChanged = dprNew !== dpr && dpr > 0;
|
|
const isZoom = deltaIsBigger && difference && dprChanged;
|
|
|
|
if (isZoom) {
|
|
const [scrollbarSize, scrollbarSizeChanged] = updateNativeScrollbarSizeCache(getNativeScrollbarSize(body, envElm, envChildElm));
|
|
assignDeep(environmentInstance._nativeScrollbarSize, scrollbarSize);
|
|
removeElements(envElm);
|
|
|
|
if (scrollbarSizeChanged) {
|
|
runEach(onChangedListener);
|
|
}
|
|
}
|
|
|
|
size = sizeNew;
|
|
dpr = dprNew;
|
|
}
|
|
});
|
|
}
|
|
|
|
return env;
|
|
};
|
|
|
|
const getEnvironment = () => {
|
|
if (!environmentInstance) {
|
|
environmentInstance = createEnvironment();
|
|
}
|
|
|
|
return environmentInstance;
|
|
};
|
|
|
|
let contentArrangeCounter = 0;
|
|
|
|
const unwrap = elm => {
|
|
appendChildren(parent(elm), contents(elm));
|
|
removeElements(elm);
|
|
};
|
|
|
|
const createUniqueViewportArrangeElement = () => {
|
|
const {
|
|
_nativeScrollbarStyling,
|
|
_nativeScrollbarIsOverlaid,
|
|
_cssCustomProperties
|
|
} = getEnvironment();
|
|
const create = !_cssCustomProperties && !_nativeScrollbarStyling && (_nativeScrollbarIsOverlaid.x || _nativeScrollbarIsOverlaid.y);
|
|
const result = create ? document.createElement('style') : false;
|
|
|
|
if (result) {
|
|
attr(result, 'id', `${classNameViewportArrange}-${contentArrangeCounter}`);
|
|
contentArrangeCounter++;
|
|
}
|
|
|
|
return result;
|
|
};
|
|
|
|
const staticCreationFromStrategy = (target, initializationValue, strategy) => {
|
|
const result = initializationValue || (isFunction(strategy) ? strategy(target) : strategy);
|
|
return result || createDiv();
|
|
};
|
|
|
|
const dynamicCreationFromStrategy = (target, initializationValue, strategy) => {
|
|
const takeInitializationValue = isBoolean(initializationValue) || initializationValue;
|
|
const result = takeInitializationValue ? initializationValue : isFunction(strategy) ? strategy(target) : strategy;
|
|
return result === true ? createDiv() : result;
|
|
};
|
|
|
|
const addDataAttrHost = elm => {
|
|
attr(elm, dataAttributeHost, '');
|
|
return removeAttr.bind(0, elm, dataAttributeHost);
|
|
};
|
|
|
|
const createStructureSetupElements = target => {
|
|
const {
|
|
_getInitializationStrategy,
|
|
_nativeScrollbarStyling
|
|
} = getEnvironment();
|
|
|
|
const {
|
|
_host: hostInitializationStrategy,
|
|
_viewport: viewportInitializationStrategy,
|
|
_padding: paddingInitializationStrategy,
|
|
_content: contentInitializationStrategy
|
|
} = _getInitializationStrategy();
|
|
|
|
const targetIsElm = isHTMLElement(target);
|
|
const targetStructureInitialization = target;
|
|
const targetElement = targetIsElm ? target : targetStructureInitialization.target;
|
|
const isTextarea = is(targetElement, 'textarea');
|
|
const isBody = !isTextarea && is(targetElement, 'body');
|
|
const ownerDocument = targetElement.ownerDocument;
|
|
const bodyElm = ownerDocument.body;
|
|
const wnd = ownerDocument.defaultView;
|
|
const evaluatedTargetObj = {
|
|
_target: targetElement,
|
|
_host: isTextarea ? staticCreationFromStrategy(targetElement, targetStructureInitialization.host, hostInitializationStrategy) : targetElement,
|
|
_viewport: staticCreationFromStrategy(targetElement, targetStructureInitialization.viewport, viewportInitializationStrategy),
|
|
_padding: dynamicCreationFromStrategy(targetElement, targetStructureInitialization.padding, paddingInitializationStrategy),
|
|
_content: dynamicCreationFromStrategy(targetElement, targetStructureInitialization.content, contentInitializationStrategy),
|
|
_viewportArrange: createUniqueViewportArrangeElement(),
|
|
_windowElm: wnd,
|
|
_documentElm: ownerDocument,
|
|
_htmlElm: parent(bodyElm),
|
|
_bodyElm: bodyElm,
|
|
_isTextarea: isTextarea,
|
|
_isBody: isBody,
|
|
_targetIsElm: targetIsElm
|
|
};
|
|
const generatedElements = keys(evaluatedTargetObj).reduce((arr, key) => {
|
|
const value = evaluatedTargetObj[key];
|
|
return push(arr, value && !parent(value) ? value : false);
|
|
}, []);
|
|
|
|
const elementIsGenerated = elm => elm ? indexOf(generatedElements, elm) > -1 : null;
|
|
|
|
const {
|
|
_target,
|
|
_host,
|
|
_padding,
|
|
_viewport,
|
|
_content,
|
|
_viewportArrange
|
|
} = evaluatedTargetObj;
|
|
const destroyFns = [];
|
|
const isTextareaHostGenerated = isTextarea && elementIsGenerated(_host);
|
|
const targetContents = isTextarea ? _target : contents([_content, _viewport, _padding, _host, _target].find(elm => elementIsGenerated(elm) === false));
|
|
const contentSlot = _content || _viewport;
|
|
const removeHostDataAttr = addDataAttrHost(_host);
|
|
const removePaddingClass = addClass(_padding, classNamePadding);
|
|
const removeViewportClass = addClass(_viewport, classNameViewport);
|
|
const removeContentClass = addClass(_content, classNameContent);
|
|
|
|
if (isTextareaHostGenerated) {
|
|
insertAfter(_target, _host);
|
|
push(destroyFns, () => {
|
|
insertAfter(_host, _target);
|
|
removeElements(_host);
|
|
});
|
|
}
|
|
|
|
appendChildren(contentSlot, targetContents);
|
|
appendChildren(_host, _padding);
|
|
appendChildren(_padding || _host, _viewport);
|
|
appendChildren(_viewport, _content);
|
|
push(destroyFns, () => {
|
|
if (targetIsElm) {
|
|
appendChildren(_host, contents(contentSlot));
|
|
removeElements(_padding || _viewport);
|
|
removeHostDataAttr();
|
|
} else {
|
|
if (elementIsGenerated(_content)) {
|
|
unwrap(_content);
|
|
}
|
|
|
|
if (elementIsGenerated(_viewport)) {
|
|
unwrap(_viewport);
|
|
}
|
|
|
|
if (elementIsGenerated(_padding)) {
|
|
unwrap(_padding);
|
|
}
|
|
|
|
removeHostDataAttr();
|
|
removePaddingClass();
|
|
removeViewportClass();
|
|
removeContentClass();
|
|
}
|
|
});
|
|
|
|
if (_nativeScrollbarStyling) {
|
|
push(destroyFns, removeClass.bind(0, _viewport, classNameViewportScrollbarStyling));
|
|
}
|
|
|
|
if (_viewportArrange) {
|
|
insertBefore(_viewport, _viewportArrange);
|
|
push(destroyFns, removeElements.bind(0, _viewportArrange));
|
|
}
|
|
|
|
return [evaluatedTargetObj, runEach.bind(0, destroyFns)];
|
|
};
|
|
|
|
const createTrinsicUpdate = (structureSetupElements, state) => {
|
|
const {
|
|
_content
|
|
} = structureSetupElements;
|
|
const [getState] = state;
|
|
return updateHints => {
|
|
const {
|
|
_heightIntrinsic
|
|
} = getState();
|
|
const {
|
|
_heightIntrinsicChanged
|
|
} = updateHints;
|
|
|
|
if (_heightIntrinsicChanged) {
|
|
style(_content, {
|
|
height: _heightIntrinsic ? '' : '100%',
|
|
display: _heightIntrinsic ? '' : 'inline'
|
|
});
|
|
}
|
|
|
|
return {
|
|
_sizeChanged: _heightIntrinsicChanged,
|
|
_contentMutation: _heightIntrinsicChanged
|
|
};
|
|
};
|
|
};
|
|
|
|
const createPaddingUpdate = (structureSetupElements, state) => {
|
|
const [getState, setState] = state;
|
|
const {
|
|
_host,
|
|
_padding,
|
|
_viewport
|
|
} = structureSetupElements;
|
|
const [updatePaddingCache, currentPaddingCache] = createCache({
|
|
_equal: equalTRBL,
|
|
_initialValue: topRightBottomLeft()
|
|
}, topRightBottomLeft.bind(0, _host, 'padding', ''));
|
|
return (updateHints, checkOption, force) => {
|
|
let [padding, paddingChanged] = currentPaddingCache(force);
|
|
const {
|
|
_nativeScrollbarStyling,
|
|
_flexboxGlue
|
|
} = getEnvironment();
|
|
const {
|
|
_directionIsRTL
|
|
} = getState();
|
|
const {
|
|
_sizeChanged,
|
|
_contentMutation,
|
|
_directionChanged
|
|
} = updateHints;
|
|
const [paddingAbsolute, paddingAbsoluteChanged] = checkOption('paddingAbsolute');
|
|
const contentMutation = !_flexboxGlue && _contentMutation;
|
|
|
|
if (_sizeChanged || paddingChanged || contentMutation) {
|
|
[padding, paddingChanged] = updatePaddingCache(force);
|
|
}
|
|
|
|
const paddingStyleChanged = paddingAbsoluteChanged || _directionChanged || paddingChanged;
|
|
|
|
if (paddingStyleChanged) {
|
|
const paddingRelative = !paddingAbsolute || !_padding && !_nativeScrollbarStyling;
|
|
const paddingHorizontal = padding.r + padding.l;
|
|
const paddingVertical = padding.t + padding.b;
|
|
const paddingStyle = {
|
|
marginRight: paddingRelative && !_directionIsRTL ? -paddingHorizontal : 0,
|
|
marginBottom: paddingRelative ? -paddingVertical : 0,
|
|
marginLeft: paddingRelative && _directionIsRTL ? -paddingHorizontal : 0,
|
|
top: paddingRelative ? -padding.t : 0,
|
|
right: paddingRelative ? _directionIsRTL ? -padding.r : 'auto' : 0,
|
|
left: paddingRelative ? _directionIsRTL ? 'auto' : -padding.l : 0,
|
|
width: paddingRelative ? `calc(100% + ${paddingHorizontal}px)` : ''
|
|
};
|
|
const viewportStyle = {
|
|
paddingTop: paddingRelative ? padding.t : 0,
|
|
paddingRight: paddingRelative ? padding.r : 0,
|
|
paddingBottom: paddingRelative ? padding.b : 0,
|
|
paddingLeft: paddingRelative ? padding.l : 0
|
|
};
|
|
style(_padding || _viewport, paddingStyle);
|
|
style(_viewport, viewportStyle);
|
|
setState({
|
|
_padding: padding,
|
|
_paddingAbsolute: !paddingRelative,
|
|
_viewportPaddingStyle: _padding ? viewportStyle : assignDeep({}, paddingStyle, viewportStyle)
|
|
});
|
|
}
|
|
|
|
return {
|
|
_paddingStyleChanged: paddingStyleChanged
|
|
};
|
|
};
|
|
};
|
|
|
|
const {
|
|
max
|
|
} = Math;
|
|
const strVisible = 'visible';
|
|
const overlaidScrollbarsHideOffset = 42;
|
|
const whCacheOptions = {
|
|
_equal: equalWH,
|
|
_initialValue: {
|
|
w: 0,
|
|
h: 0
|
|
}
|
|
};
|
|
const xyCacheOptions = {
|
|
_equal: equalXY,
|
|
_initialValue: {
|
|
x: false,
|
|
y: false
|
|
}
|
|
};
|
|
|
|
const getOverflowAmount = (viewportScrollSize, viewportClientSize, sizeFraction) => {
|
|
const tollerance = window.devicePixelRatio % 1 !== 0 ? 1 : 0;
|
|
const amount = {
|
|
w: max(0, viewportScrollSize.w - viewportClientSize.w - max(0, sizeFraction.w)),
|
|
h: max(0, viewportScrollSize.h - viewportClientSize.h - max(0, sizeFraction.h))
|
|
};
|
|
return {
|
|
w: amount.w > tollerance ? amount.w : 0,
|
|
h: amount.h > tollerance ? amount.h : 0
|
|
};
|
|
};
|
|
|
|
const conditionalClass = (elm, classNames, condition) => condition ? addClass(elm, classNames) : removeClass(elm, classNames);
|
|
|
|
const overflowIsVisible = overflowBehavior => overflowBehavior.indexOf(strVisible) === 0;
|
|
|
|
const createOverflowUpdate = (structureSetupElements, state) => {
|
|
const [getState, setState] = state;
|
|
const {
|
|
_host,
|
|
_padding,
|
|
_viewport,
|
|
_viewportArrange
|
|
} = structureSetupElements;
|
|
const {
|
|
_nativeScrollbarSize,
|
|
_flexboxGlue,
|
|
_nativeScrollbarStyling,
|
|
_nativeScrollbarIsOverlaid
|
|
} = getEnvironment();
|
|
const doViewportArrange = !_nativeScrollbarStyling && (_nativeScrollbarIsOverlaid.x || _nativeScrollbarIsOverlaid.y);
|
|
const [updateSizeFraction, getCurrentSizeFraction] = createCache(whCacheOptions, fractionalSize.bind(0, _host));
|
|
const [updateViewportScrollSizeCache, getCurrentViewportScrollSizeCache] = createCache(whCacheOptions, scrollSize.bind(0, _viewport));
|
|
const [updateOverflowAmountCache, getCurrentOverflowAmountCache] = createCache(whCacheOptions);
|
|
const [updateOverflowScrollCache] = createCache(xyCacheOptions);
|
|
|
|
const fixFlexboxGlue = (viewportOverflowState, heightIntrinsic) => {
|
|
style(_viewport, {
|
|
height: ''
|
|
});
|
|
|
|
if (heightIntrinsic) {
|
|
const {
|
|
_paddingAbsolute,
|
|
_padding: padding
|
|
} = getState();
|
|
const {
|
|
_overflowScroll,
|
|
_scrollbarsHideOffset
|
|
} = viewportOverflowState;
|
|
const fSize = fractionalSize(_host);
|
|
const hostClientSize = clientSize(_host);
|
|
const isContentBox = style(_viewport, 'boxSizing') === 'content-box';
|
|
const paddingVertical = _paddingAbsolute || isContentBox ? padding.b + padding.t : 0;
|
|
const subtractXScrollbar = !(_nativeScrollbarIsOverlaid.x && isContentBox);
|
|
style(_viewport, {
|
|
height: hostClientSize.h + fSize.h + (_overflowScroll.x && subtractXScrollbar ? _scrollbarsHideOffset.x : 0) - paddingVertical
|
|
});
|
|
}
|
|
};
|
|
|
|
const getViewportOverflowState = (showNativeOverlaidScrollbars, viewportStyleObj) => {
|
|
const {
|
|
x: overlaidX,
|
|
y: overlaidY
|
|
} = _nativeScrollbarIsOverlaid;
|
|
const determineOverflow = !viewportStyleObj;
|
|
const arrangeHideOffset = !_nativeScrollbarStyling && !showNativeOverlaidScrollbars ? overlaidScrollbarsHideOffset : 0;
|
|
const styleObj = determineOverflow ? style(_viewport, ['overflowX', 'overflowY']) : viewportStyleObj;
|
|
const scroll = {
|
|
x: styleObj.overflowX === 'scroll',
|
|
y: styleObj.overflowY === 'scroll'
|
|
};
|
|
const nonScrollbarStylingHideOffset = {
|
|
x: overlaidX ? arrangeHideOffset : _nativeScrollbarSize.x,
|
|
y: overlaidY ? arrangeHideOffset : _nativeScrollbarSize.y
|
|
};
|
|
const scrollbarsHideOffset = {
|
|
x: scroll.x && !_nativeScrollbarStyling ? nonScrollbarStylingHideOffset.x : 0,
|
|
y: scroll.y && !_nativeScrollbarStyling ? nonScrollbarStylingHideOffset.y : 0
|
|
};
|
|
return {
|
|
_overflowScroll: scroll,
|
|
_scrollbarsHideOffsetArrange: {
|
|
x: overlaidX && !!arrangeHideOffset,
|
|
y: overlaidY && !!arrangeHideOffset
|
|
},
|
|
_scrollbarsHideOffset: scrollbarsHideOffset
|
|
};
|
|
};
|
|
|
|
const setViewportOverflowState = (showNativeOverlaidScrollbars, hasOverflow, overflowOption, viewportStyleObj) => {
|
|
const setAxisOverflowStyle = (behavior, hasOverflowAxis) => {
|
|
const overflowVisible = overflowIsVisible(behavior);
|
|
return [hasOverflowAxis && !overflowVisible ? behavior : '', hasOverflowAxis && overflowVisible && behavior.replace(`${strVisible}-`, '') || ''];
|
|
};
|
|
|
|
const [overflowX, visibleBehaviorX] = setAxisOverflowStyle(overflowOption.x, hasOverflow.x);
|
|
const [overflowY, visibleBehaviorY] = setAxisOverflowStyle(overflowOption.y, hasOverflow.y);
|
|
viewportStyleObj.overflowX = visibleBehaviorX && overflowY ? visibleBehaviorX : overflowX;
|
|
viewportStyleObj.overflowY = visibleBehaviorY && overflowX ? visibleBehaviorY : overflowY;
|
|
return getViewportOverflowState(showNativeOverlaidScrollbars, viewportStyleObj);
|
|
};
|
|
|
|
const arrangeViewport = (viewportOverflowState, viewportScrollSize, sizeFraction, directionIsRTL) => {
|
|
if (doViewportArrange) {
|
|
const {
|
|
_viewportPaddingStyle
|
|
} = getState();
|
|
const {
|
|
_scrollbarsHideOffset,
|
|
_scrollbarsHideOffsetArrange
|
|
} = viewportOverflowState;
|
|
const {
|
|
x: arrangeX,
|
|
y: arrangeY
|
|
} = _scrollbarsHideOffsetArrange;
|
|
const {
|
|
x: hideOffsetX,
|
|
y: hideOffsetY
|
|
} = _scrollbarsHideOffset;
|
|
const viewportArrangeHorizontalPaddingKey = directionIsRTL ? 'paddingRight' : 'paddingLeft';
|
|
const viewportArrangeHorizontalPaddingValue = _viewportPaddingStyle[viewportArrangeHorizontalPaddingKey];
|
|
const viewportArrangeVerticalPaddingValue = _viewportPaddingStyle.paddingTop;
|
|
const fractionalContentWidth = viewportScrollSize.w + sizeFraction.w;
|
|
const fractionalContenHeight = viewportScrollSize.h + sizeFraction.h;
|
|
const arrangeSize = {
|
|
w: hideOffsetY && arrangeY ? `${hideOffsetY + fractionalContentWidth - viewportArrangeHorizontalPaddingValue}px` : '',
|
|
h: hideOffsetX && arrangeX ? `${hideOffsetX + fractionalContenHeight - viewportArrangeVerticalPaddingValue}px` : ''
|
|
};
|
|
|
|
if (_viewportArrange) {
|
|
const {
|
|
sheet
|
|
} = _viewportArrange;
|
|
|
|
if (sheet) {
|
|
const {
|
|
cssRules
|
|
} = sheet;
|
|
|
|
if (cssRules) {
|
|
if (!cssRules.length) {
|
|
sheet.insertRule(`#${attr(_viewportArrange, 'id')} + .${classNameViewportArrange}::before {}`, 0);
|
|
}
|
|
|
|
const ruleStyle = cssRules[0].style;
|
|
ruleStyle.width = arrangeSize.w;
|
|
ruleStyle.height = arrangeSize.h;
|
|
}
|
|
}
|
|
} else {
|
|
style(_viewport, {
|
|
'--os-vaw': arrangeSize.w,
|
|
'--os-vah': arrangeSize.h
|
|
});
|
|
}
|
|
}
|
|
|
|
return doViewportArrange;
|
|
};
|
|
|
|
const hideNativeScrollbars = (viewportOverflowState, directionIsRTL, viewportArrange, viewportStyleObj) => {
|
|
const {
|
|
_scrollbarsHideOffset,
|
|
_scrollbarsHideOffsetArrange
|
|
} = viewportOverflowState;
|
|
const {
|
|
x: arrangeX,
|
|
y: arrangeY
|
|
} = _scrollbarsHideOffsetArrange;
|
|
const {
|
|
x: hideOffsetX,
|
|
y: hideOffsetY
|
|
} = _scrollbarsHideOffset;
|
|
const {
|
|
_viewportPaddingStyle: viewportPaddingStyle
|
|
} = getState();
|
|
const horizontalMarginKey = directionIsRTL ? 'marginLeft' : 'marginRight';
|
|
const viewportHorizontalPaddingKey = directionIsRTL ? 'paddingLeft' : 'paddingRight';
|
|
const horizontalMarginValue = viewportPaddingStyle[horizontalMarginKey];
|
|
const verticalMarginValue = viewportPaddingStyle.marginBottom;
|
|
const horizontalPaddingValue = viewportPaddingStyle[viewportHorizontalPaddingKey];
|
|
const verticalPaddingValue = viewportPaddingStyle.paddingBottom;
|
|
viewportStyleObj.width = `calc(100% + ${hideOffsetY + horizontalMarginValue * -1}px)`;
|
|
viewportStyleObj[horizontalMarginKey] = -hideOffsetY + horizontalMarginValue;
|
|
viewportStyleObj.marginBottom = -hideOffsetX + verticalMarginValue;
|
|
|
|
if (viewportArrange) {
|
|
viewportStyleObj[viewportHorizontalPaddingKey] = horizontalPaddingValue + (arrangeY ? hideOffsetY : 0);
|
|
viewportStyleObj.paddingBottom = verticalPaddingValue + (arrangeX ? hideOffsetX : 0);
|
|
}
|
|
};
|
|
|
|
const undoViewportArrange = (showNativeOverlaidScrollbars, directionIsRTL, viewportOverflowState) => {
|
|
if (doViewportArrange) {
|
|
const finalViewportOverflowState = viewportOverflowState || getViewportOverflowState(showNativeOverlaidScrollbars);
|
|
const {
|
|
_viewportPaddingStyle: viewportPaddingStyle
|
|
} = getState();
|
|
const {
|
|
_scrollbarsHideOffsetArrange
|
|
} = finalViewportOverflowState;
|
|
const {
|
|
x: arrangeX,
|
|
y: arrangeY
|
|
} = _scrollbarsHideOffsetArrange;
|
|
const finalPaddingStyle = {};
|
|
|
|
const assignProps = props => each(props.split(' '), prop => {
|
|
finalPaddingStyle[prop] = viewportPaddingStyle[prop];
|
|
});
|
|
|
|
if (arrangeX) {
|
|
assignProps('marginBottom paddingTop paddingBottom');
|
|
}
|
|
|
|
if (arrangeY) {
|
|
assignProps('marginLeft marginRight paddingLeft paddingRight');
|
|
}
|
|
|
|
const prevStyle = style(_viewport, keys(finalPaddingStyle));
|
|
removeClass(_viewport, classNameViewportArrange);
|
|
|
|
if (!_flexboxGlue) {
|
|
finalPaddingStyle.height = '';
|
|
}
|
|
|
|
style(_viewport, finalPaddingStyle);
|
|
return [() => {
|
|
hideNativeScrollbars(finalViewportOverflowState, directionIsRTL, doViewportArrange, prevStyle);
|
|
style(_viewport, prevStyle);
|
|
addClass(_viewport, classNameViewportArrange);
|
|
}, finalViewportOverflowState];
|
|
}
|
|
|
|
return [noop];
|
|
};
|
|
|
|
return (updateHints, checkOption, force) => {
|
|
const {
|
|
_sizeChanged,
|
|
_hostMutation,
|
|
_contentMutation,
|
|
_paddingStyleChanged,
|
|
_heightIntrinsicChanged,
|
|
_directionChanged
|
|
} = updateHints;
|
|
const {
|
|
_heightIntrinsic,
|
|
_directionIsRTL
|
|
} = getState();
|
|
const [showNativeOverlaidScrollbarsOption, showNativeOverlaidScrollbarsChanged] = checkOption('nativeScrollbarsOverlaid.show');
|
|
const [overflow, overflowChanged] = checkOption('overflow');
|
|
const showNativeOverlaidScrollbars = showNativeOverlaidScrollbarsOption && _nativeScrollbarIsOverlaid.x && _nativeScrollbarIsOverlaid.y;
|
|
const adjustFlexboxGlue = !_flexboxGlue && (_sizeChanged || _contentMutation || _hostMutation || showNativeOverlaidScrollbarsChanged || _heightIntrinsicChanged);
|
|
const overflowXVisible = overflowIsVisible(overflow.x);
|
|
const overflowYVisible = overflowIsVisible(overflow.y);
|
|
const overflowVisible = overflowXVisible || overflowYVisible;
|
|
let sizeFractionCache = getCurrentSizeFraction(force);
|
|
let viewportScrollSizeCache = getCurrentViewportScrollSizeCache(force);
|
|
let overflowAmuntCache = getCurrentOverflowAmountCache(force);
|
|
let preMeasureViewportOverflowState;
|
|
let updateHintsReturn;
|
|
|
|
if (showNativeOverlaidScrollbarsChanged && _nativeScrollbarStyling) {
|
|
conditionalClass(_viewport, classNameViewportScrollbarStyling, !showNativeOverlaidScrollbars);
|
|
}
|
|
|
|
if (adjustFlexboxGlue) {
|
|
preMeasureViewportOverflowState = getViewportOverflowState(showNativeOverlaidScrollbars);
|
|
fixFlexboxGlue(preMeasureViewportOverflowState, _heightIntrinsic);
|
|
}
|
|
|
|
if (overflowVisible) {
|
|
removeClass(_viewport, classNameOverflowVisible);
|
|
}
|
|
|
|
if (_sizeChanged || _paddingStyleChanged || _contentMutation || _directionChanged || showNativeOverlaidScrollbarsChanged) {
|
|
const [redoViewportArrange, undoViewportArrangeOverflowState] = undoViewportArrange(showNativeOverlaidScrollbars, _directionIsRTL, preMeasureViewportOverflowState);
|
|
const [_sizeFraction, _sizeFractionChanged] = sizeFractionCache = updateSizeFraction(force);
|
|
const [_viewportScrollSize, _viewportScrollSizeChanged] = viewportScrollSizeCache = updateViewportScrollSizeCache(force);
|
|
const viewportContentSize = clientSize(_viewport);
|
|
let arrangedViewportScrollSize = _viewportScrollSize;
|
|
let arrangedViewportClientSize = viewportContentSize;
|
|
redoViewportArrange();
|
|
|
|
if ((_viewportScrollSizeChanged || _sizeFractionChanged || showNativeOverlaidScrollbarsChanged) && undoViewportArrangeOverflowState && !showNativeOverlaidScrollbars && arrangeViewport(undoViewportArrangeOverflowState, _viewportScrollSize, _sizeFraction, _directionIsRTL)) {
|
|
arrangedViewportClientSize = clientSize(_viewport);
|
|
arrangedViewportScrollSize = scrollSize(_viewport);
|
|
}
|
|
|
|
overflowAmuntCache = updateOverflowAmountCache(getOverflowAmount({
|
|
w: max(_viewportScrollSize.w, arrangedViewportScrollSize.w),
|
|
h: max(_viewportScrollSize.h, arrangedViewportScrollSize.h)
|
|
}, {
|
|
w: arrangedViewportClientSize.w + max(0, viewportContentSize.w - _viewportScrollSize.w),
|
|
h: arrangedViewportClientSize.h + max(0, viewportContentSize.h - _viewportScrollSize.h)
|
|
}, _sizeFraction), force);
|
|
}
|
|
|
|
const [overflowAmount, overflowAmountChanged] = overflowAmuntCache;
|
|
const [viewportScrollSize, viewportScrollSizeChanged] = viewportScrollSizeCache;
|
|
const [sizeFraction, sizeFractionChanged] = sizeFractionCache;
|
|
const hasOverflow = {
|
|
x: overflowAmount.w > 0,
|
|
y: overflowAmount.h > 0
|
|
};
|
|
const removeClipping = overflowXVisible && overflowYVisible && (hasOverflow.x || hasOverflow.y) || overflowXVisible && hasOverflow.x && !hasOverflow.y || overflowYVisible && hasOverflow.y && !hasOverflow.x;
|
|
|
|
if (_paddingStyleChanged || _directionChanged || sizeFractionChanged || viewportScrollSizeChanged || overflowAmountChanged || overflowChanged || showNativeOverlaidScrollbarsChanged || adjustFlexboxGlue) {
|
|
const viewportStyle = {
|
|
marginRight: 0,
|
|
marginBottom: 0,
|
|
marginLeft: 0,
|
|
width: '',
|
|
overflowY: '',
|
|
overflowX: ''
|
|
};
|
|
const viewportOverflowState = setViewportOverflowState(showNativeOverlaidScrollbars, hasOverflow, overflow, viewportStyle);
|
|
const viewportArranged = arrangeViewport(viewportOverflowState, viewportScrollSize, sizeFraction, _directionIsRTL);
|
|
const [overflowScroll, overflowScrollChanged] = updateOverflowScrollCache(viewportOverflowState._overflowScroll);
|
|
hideNativeScrollbars(viewportOverflowState, _directionIsRTL, viewportArranged, viewportStyle);
|
|
|
|
if (adjustFlexboxGlue) {
|
|
fixFlexboxGlue(viewportOverflowState, _heightIntrinsic);
|
|
}
|
|
|
|
style(_viewport, viewportStyle);
|
|
setState({
|
|
_overflowScroll: overflowScroll,
|
|
_overflowAmount: overflowAmount,
|
|
_hasOverflow: hasOverflow
|
|
});
|
|
updateHintsReturn = {
|
|
_overflowAmountChanged: overflowAmountChanged,
|
|
_overflowScrollChanged: overflowScrollChanged
|
|
};
|
|
}
|
|
|
|
attr(_host, dataAttributeHost, removeClipping ? 'overflowVisible' : '');
|
|
conditionalClass(_padding, classNameOverflowVisible, removeClipping);
|
|
conditionalClass(_viewport, classNameOverflowVisible, overflowVisible);
|
|
return updateHintsReturn;
|
|
};
|
|
};
|
|
|
|
const prepareUpdateHints = (leading, adaptive, force) => {
|
|
const result = {};
|
|
const finalAdaptive = adaptive || {};
|
|
const objKeys = keys(leading).concat(keys(finalAdaptive));
|
|
each(objKeys, key => {
|
|
const leadingValue = leading[key];
|
|
const adaptiveValue = finalAdaptive[key];
|
|
result[key] = !!(force || leadingValue || adaptiveValue);
|
|
});
|
|
return result;
|
|
};
|
|
|
|
const createStructureSetupUpdate = (structureSetupElements, state) => {
|
|
const {
|
|
_viewport
|
|
} = structureSetupElements;
|
|
const {
|
|
_nativeScrollbarStyling,
|
|
_nativeScrollbarIsOverlaid,
|
|
_flexboxGlue
|
|
} = getEnvironment();
|
|
const doViewportArrange = !_nativeScrollbarStyling && (_nativeScrollbarIsOverlaid.x || _nativeScrollbarIsOverlaid.y);
|
|
const updateSegments = [createTrinsicUpdate(structureSetupElements, state), createPaddingUpdate(structureSetupElements, state), createOverflowUpdate(structureSetupElements, state)];
|
|
return (checkOption, updateHints, force) => {
|
|
const initialUpdateHints = prepareUpdateHints(assignDeep({
|
|
_sizeChanged: false,
|
|
_paddingStyleChanged: false,
|
|
_directionChanged: false,
|
|
_heightIntrinsicChanged: false,
|
|
_overflowScrollChanged: false,
|
|
_overflowAmountChanged: false,
|
|
_hostMutation: false,
|
|
_contentMutation: false
|
|
}, updateHints), {}, force);
|
|
const adjustScrollOffset = doViewportArrange || !_flexboxGlue;
|
|
const scrollOffsetX = adjustScrollOffset && scrollLeft(_viewport);
|
|
const scrollOffsetY = adjustScrollOffset && scrollTop(_viewport);
|
|
let adaptivedUpdateHints = initialUpdateHints;
|
|
each(updateSegments, updateSegment => {
|
|
adaptivedUpdateHints = prepareUpdateHints(adaptivedUpdateHints, updateSegment(adaptivedUpdateHints, checkOption, !!force) || {}, force);
|
|
});
|
|
|
|
if (isNumber(scrollOffsetX)) {
|
|
scrollLeft(_viewport, scrollOffsetX);
|
|
}
|
|
|
|
if (isNumber(scrollOffsetY)) {
|
|
scrollTop(_viewport, scrollOffsetY);
|
|
}
|
|
|
|
return adaptivedUpdateHints;
|
|
};
|
|
};
|
|
|
|
const animationStartEventName = 'animationstart';
|
|
const scrollEventName = 'scroll';
|
|
const scrollAmount = 3333333;
|
|
|
|
const getElmDirectionIsRTL = elm => style(elm, 'direction') === 'rtl';
|
|
|
|
const domRectHasDimensions = rect => rect && (rect.height || rect.width);
|
|
|
|
const createSizeObserver = (target, onSizeChangedCallback, options) => {
|
|
const {
|
|
_direction: observeDirectionChange = false,
|
|
_appear: observeAppearChange = false
|
|
} = options || {};
|
|
const {
|
|
_rtlScrollBehavior: rtlScrollBehavior
|
|
} = getEnvironment();
|
|
const baseElements = createDOM(`<div class="${classNameSizeObserver}"><div class="${classNameSizeObserverListener}"></div></div>`);
|
|
const sizeObserver = baseElements[0];
|
|
const listenerElement = sizeObserver.firstChild;
|
|
const getIsDirectionRTL = getElmDirectionIsRTL.bind(0, sizeObserver);
|
|
const [updateResizeObserverContentRectCache] = createCache({
|
|
_initialValue: undefined,
|
|
_alwaysUpdateValues: true,
|
|
_equal: (currVal, newVal) => !(!currVal || !domRectHasDimensions(currVal) && domRectHasDimensions(newVal))
|
|
});
|
|
|
|
const onSizeChangedCallbackProxy = sizeChangedContext => {
|
|
const isResizeObserverCall = isArray(sizeChangedContext) && sizeChangedContext.length > 0 && isObject(sizeChangedContext[0]);
|
|
const hasDirectionCache = !isResizeObserverCall && isBoolean(sizeChangedContext[0]);
|
|
let skip = false;
|
|
let appear = false;
|
|
let doDirectionScroll = true;
|
|
|
|
if (isResizeObserverCall) {
|
|
const [currRContentRect,, prevContentRect] = updateResizeObserverContentRectCache(sizeChangedContext.pop().contentRect);
|
|
const hasDimensions = domRectHasDimensions(currRContentRect);
|
|
const hadDimensions = domRectHasDimensions(prevContentRect);
|
|
skip = !prevContentRect || !hasDimensions;
|
|
appear = !hadDimensions && hasDimensions;
|
|
doDirectionScroll = !skip;
|
|
} else if (hasDirectionCache) {
|
|
[, doDirectionScroll] = sizeChangedContext;
|
|
} else {
|
|
appear = sizeChangedContext === true;
|
|
}
|
|
|
|
if (observeDirectionChange && doDirectionScroll) {
|
|
const rtl = hasDirectionCache ? sizeChangedContext[0] : getElmDirectionIsRTL(sizeObserver);
|
|
scrollLeft(sizeObserver, rtl ? rtlScrollBehavior.n ? -scrollAmount : rtlScrollBehavior.i ? 0 : scrollAmount : scrollAmount);
|
|
scrollTop(sizeObserver, scrollAmount);
|
|
}
|
|
|
|
if (!skip) {
|
|
onSizeChangedCallback({
|
|
_sizeChanged: !hasDirectionCache,
|
|
_directionIsRTLCache: hasDirectionCache ? sizeChangedContext : undefined,
|
|
_appear: !!appear
|
|
});
|
|
}
|
|
};
|
|
|
|
const offListeners = [];
|
|
let appearCallback = observeAppearChange ? onSizeChangedCallbackProxy : false;
|
|
let directionIsRTLCache;
|
|
|
|
if (ResizeObserverConstructor) {
|
|
const resizeObserverInstance = new ResizeObserverConstructor(onSizeChangedCallbackProxy);
|
|
resizeObserverInstance.observe(listenerElement);
|
|
push(offListeners, () => {
|
|
resizeObserverInstance.disconnect();
|
|
});
|
|
} else {
|
|
const observerElementChildren = createDOM(`<div class="${classNameSizeObserverListenerItem}" dir="ltr"><div class="${classNameSizeObserverListenerItem}"><div class="${classNameSizeObserverListenerItemFinal}"></div></div><div class="${classNameSizeObserverListenerItem}"><div class="${classNameSizeObserverListenerItemFinal}" style="width: 200%; height: 200%"></div></div></div>`);
|
|
appendChildren(listenerElement, observerElementChildren);
|
|
addClass(listenerElement, classNameSizeObserverListenerScroll);
|
|
const observerElementChildrenRoot = observerElementChildren[0];
|
|
const shrinkElement = observerElementChildrenRoot.lastChild;
|
|
const expandElement = observerElementChildrenRoot.firstChild;
|
|
const expandElementChild = expandElement == null ? void 0 : expandElement.firstChild;
|
|
let cacheSize = offsetSize(observerElementChildrenRoot);
|
|
let currSize = cacheSize;
|
|
let isDirty = false;
|
|
let rAFId;
|
|
|
|
const reset = () => {
|
|
scrollLeft(expandElement, scrollAmount);
|
|
scrollTop(expandElement, scrollAmount);
|
|
scrollLeft(shrinkElement, scrollAmount);
|
|
scrollTop(shrinkElement, scrollAmount);
|
|
};
|
|
|
|
const onResized = appear => {
|
|
rAFId = 0;
|
|
|
|
if (isDirty) {
|
|
cacheSize = currSize;
|
|
onSizeChangedCallbackProxy(appear === true);
|
|
}
|
|
};
|
|
|
|
const onScroll = scrollEvent => {
|
|
currSize = offsetSize(observerElementChildrenRoot);
|
|
isDirty = !scrollEvent || !equalWH(currSize, cacheSize);
|
|
|
|
if (scrollEvent) {
|
|
stopAndPrevent(scrollEvent);
|
|
|
|
if (isDirty && !rAFId) {
|
|
cAF(rAFId);
|
|
rAFId = rAF(onResized);
|
|
}
|
|
} else {
|
|
onResized(scrollEvent === false);
|
|
}
|
|
|
|
reset();
|
|
};
|
|
|
|
push(offListeners, [on(expandElement, scrollEventName, onScroll), on(shrinkElement, scrollEventName, onScroll)]);
|
|
style(expandElementChild, {
|
|
width: scrollAmount,
|
|
height: scrollAmount
|
|
});
|
|
reset();
|
|
appearCallback = observeAppearChange ? onScroll.bind(0, false) : reset;
|
|
}
|
|
|
|
if (observeDirectionChange) {
|
|
directionIsRTLCache = createCache({
|
|
_initialValue: !getIsDirectionRTL()
|
|
}, getIsDirectionRTL);
|
|
const [updateDirectionIsRTLCache] = directionIsRTLCache;
|
|
push(offListeners, on(sizeObserver, scrollEventName, event => {
|
|
const directionIsRTLCacheValues = updateDirectionIsRTLCache();
|
|
const [directionIsRTL, directionIsRTLChanged] = directionIsRTLCacheValues;
|
|
|
|
if (directionIsRTLChanged) {
|
|
removeClass(listenerElement, 'ltr rtl');
|
|
|
|
if (directionIsRTL) {
|
|
addClass(listenerElement, 'rtl');
|
|
} else {
|
|
addClass(listenerElement, 'ltr');
|
|
}
|
|
|
|
onSizeChangedCallbackProxy(directionIsRTLCacheValues);
|
|
}
|
|
|
|
stopAndPrevent(event);
|
|
}));
|
|
}
|
|
|
|
if (appearCallback) {
|
|
addClass(sizeObserver, classNameSizeObserverAppear);
|
|
push(offListeners, on(sizeObserver, animationStartEventName, appearCallback, {
|
|
_once: !!ResizeObserverConstructor
|
|
}));
|
|
}
|
|
|
|
prependChildren(target, sizeObserver);
|
|
return () => {
|
|
runEach(offListeners);
|
|
removeElements(sizeObserver);
|
|
};
|
|
};
|
|
|
|
const isHeightIntrinsic = ioEntryOrSize => ioEntryOrSize.h === 0 || ioEntryOrSize.isIntersecting || ioEntryOrSize.intersectionRatio > 0;
|
|
|
|
const createTrinsicObserver = (target, onTrinsicChangedCallback) => {
|
|
const trinsicObserver = createDiv(classNameTrinsicObserver);
|
|
const offListeners = [];
|
|
const [updateHeightIntrinsicCache] = createCache({
|
|
_initialValue: false
|
|
});
|
|
|
|
const triggerOnTrinsicChangedCallback = updateValue => {
|
|
if (updateValue) {
|
|
const heightIntrinsic = updateHeightIntrinsicCache(isHeightIntrinsic(updateValue));
|
|
const [, heightIntrinsicChanged] = heightIntrinsic;
|
|
|
|
if (heightIntrinsicChanged) {
|
|
onTrinsicChangedCallback(heightIntrinsic);
|
|
}
|
|
}
|
|
};
|
|
|
|
if (IntersectionObserverConstructor) {
|
|
const intersectionObserverInstance = new IntersectionObserverConstructor(entries => {
|
|
if (entries && entries.length > 0) {
|
|
triggerOnTrinsicChangedCallback(entries.pop());
|
|
}
|
|
}, {
|
|
root: target
|
|
});
|
|
intersectionObserverInstance.observe(trinsicObserver);
|
|
push(offListeners, () => {
|
|
intersectionObserverInstance.disconnect();
|
|
});
|
|
} else {
|
|
const onSizeChanged = () => {
|
|
const newSize = offsetSize(trinsicObserver);
|
|
triggerOnTrinsicChangedCallback(newSize);
|
|
};
|
|
|
|
push(offListeners, createSizeObserver(trinsicObserver, onSizeChanged));
|
|
onSizeChanged();
|
|
}
|
|
|
|
prependChildren(target, trinsicObserver);
|
|
return () => {
|
|
runEach(offListeners);
|
|
removeElements(trinsicObserver);
|
|
};
|
|
};
|
|
|
|
const createEventContentChange = (target, callback, eventContentChange) => {
|
|
let map;
|
|
let destroyed = false;
|
|
|
|
const destroy = () => {
|
|
destroyed = true;
|
|
};
|
|
|
|
const updateElements = getElements => {
|
|
if (eventContentChange) {
|
|
const eventElmList = eventContentChange.reduce((arr, item) => {
|
|
if (item) {
|
|
const selector = item[0];
|
|
const eventNames = item[1];
|
|
const elements = eventNames && selector && (getElements ? getElements(selector) : find(selector, target));
|
|
|
|
if (elements && elements.length && eventNames && isString(eventNames)) {
|
|
push(arr, [elements, eventNames.trim()], true);
|
|
}
|
|
}
|
|
|
|
return arr;
|
|
}, []);
|
|
each(eventElmList, item => each(item[0], elm => {
|
|
const eventNames = item[1];
|
|
const entry = map.get(elm);
|
|
|
|
if (entry) {
|
|
const entryEventNames = entry[0];
|
|
const entryOff = entry[1];
|
|
|
|
if (entryEventNames === eventNames) {
|
|
entryOff();
|
|
}
|
|
}
|
|
|
|
const off = on(elm, eventNames, event => {
|
|
if (destroyed) {
|
|
off();
|
|
map.delete(elm);
|
|
} else {
|
|
callback(event);
|
|
}
|
|
});
|
|
map.set(elm, [eventNames, off]);
|
|
}));
|
|
}
|
|
};
|
|
|
|
if (eventContentChange) {
|
|
map = new WeakMap();
|
|
updateElements();
|
|
}
|
|
|
|
return [destroy, updateElements];
|
|
};
|
|
|
|
const createDOMObserver = (target, isContentObserver, callback, options) => {
|
|
let isConnected = false;
|
|
const {
|
|
_attributes,
|
|
_styleChangingAttributes,
|
|
_eventContentChange,
|
|
_nestedTargetSelector,
|
|
_ignoreTargetChange,
|
|
_ignoreNestedTargetChange,
|
|
_ignoreContentChange
|
|
} = options || {};
|
|
const [destroyEventContentChange, updateEventContentChangeElements] = createEventContentChange(target, debounce(() => {
|
|
if (isConnected) {
|
|
callback(true);
|
|
}
|
|
}, {
|
|
_timeout: 33,
|
|
_maxDelay: 99
|
|
}), _eventContentChange);
|
|
const finalAttributes = _attributes || [];
|
|
const finalStyleChangingAttributes = _styleChangingAttributes || [];
|
|
const observedAttributes = finalAttributes.concat(finalStyleChangingAttributes);
|
|
|
|
const observerCallback = mutations => {
|
|
const ignoreTargetChange = (isContentObserver ? _ignoreNestedTargetChange : _ignoreTargetChange) || noop;
|
|
const ignoreContentChange = _ignoreContentChange || noop;
|
|
const targetChangedAttrs = [];
|
|
const totalAddedNodes = [];
|
|
let targetStyleChanged = false;
|
|
let contentChanged = false;
|
|
let childListChanged = false;
|
|
each(mutations, mutation => {
|
|
const {
|
|
attributeName,
|
|
target: mutationTarget,
|
|
type,
|
|
oldValue,
|
|
addedNodes
|
|
} = mutation;
|
|
const isAttributesType = type === 'attributes';
|
|
const isChildListType = type === 'childList';
|
|
const targetIsMutationTarget = target === mutationTarget;
|
|
const attributeValue = isAttributesType && isString(attributeName) ? attr(mutationTarget, attributeName) : 0;
|
|
const attributeChanged = attributeValue !== 0 && oldValue !== attributeValue;
|
|
const styleChangingAttrChanged = indexOf(finalStyleChangingAttributes, attributeName) > -1 && attributeChanged;
|
|
|
|
if (isContentObserver && !targetIsMutationTarget) {
|
|
const notOnlyAttrChanged = !isAttributesType;
|
|
const contentAttrChanged = isAttributesType && styleChangingAttrChanged;
|
|
const isNestedTarget = contentAttrChanged && _nestedTargetSelector && is(mutationTarget, _nestedTargetSelector);
|
|
const baseAssertion = isNestedTarget ? !ignoreTargetChange(mutationTarget, attributeName, oldValue, attributeValue) : notOnlyAttrChanged || contentAttrChanged;
|
|
const contentFinalChanged = baseAssertion && !ignoreContentChange(mutation, !!isNestedTarget, target, options);
|
|
push(totalAddedNodes, addedNodes);
|
|
contentChanged = contentChanged || contentFinalChanged;
|
|
childListChanged = childListChanged || isChildListType;
|
|
}
|
|
|
|
if (!isContentObserver && targetIsMutationTarget && attributeChanged && !ignoreTargetChange(mutationTarget, attributeName, oldValue, attributeValue)) {
|
|
push(targetChangedAttrs, attributeName);
|
|
targetStyleChanged = targetStyleChanged || styleChangingAttrChanged;
|
|
}
|
|
});
|
|
|
|
if (childListChanged && !isEmptyArray(totalAddedNodes)) {
|
|
updateEventContentChangeElements(selector => totalAddedNodes.reduce((arr, node) => {
|
|
push(arr, find(selector, node));
|
|
return is(node, selector) ? push(arr, node) : arr;
|
|
}, []));
|
|
}
|
|
|
|
if (isContentObserver) {
|
|
contentChanged && callback(false);
|
|
} else if (!isEmptyArray(targetChangedAttrs) || targetStyleChanged) {
|
|
callback(targetChangedAttrs, targetStyleChanged);
|
|
}
|
|
};
|
|
|
|
const mutationObserver = new MutationObserverConstructor(observerCallback);
|
|
mutationObserver.observe(target, {
|
|
attributes: true,
|
|
attributeOldValue: true,
|
|
attributeFilter: observedAttributes,
|
|
subtree: isContentObserver,
|
|
childList: isContentObserver,
|
|
characterData: isContentObserver
|
|
});
|
|
isConnected = true;
|
|
return [() => {
|
|
if (isConnected) {
|
|
destroyEventContentChange();
|
|
mutationObserver.disconnect();
|
|
isConnected = false;
|
|
}
|
|
}, () => {
|
|
if (isConnected) {
|
|
observerCallback(mutationObserver.takeRecords());
|
|
}
|
|
}];
|
|
};
|
|
|
|
const ignorePrefix = 'os-';
|
|
const viewportAttrsFromTarget = ['tabindex'];
|
|
const baseStyleChangingAttrsTextarea = ['wrap', 'cols', 'rows'];
|
|
const baseStyleChangingAttrs = ['id', 'class', 'style', 'open'];
|
|
|
|
const ignoreTargetChange = (target, attrName, oldValue, newValue) => {
|
|
if (attrName === 'class' && oldValue && newValue) {
|
|
const diff = diffClass(oldValue, newValue);
|
|
return !!diff.find(addedOrRemovedClass => addedOrRemovedClass.indexOf(ignorePrefix) !== 0);
|
|
}
|
|
|
|
return false;
|
|
};
|
|
|
|
const createStructureSetupObservers = (structureSetupElements, state, structureSetupUpdate) => {
|
|
let debounceTimeout;
|
|
let debounceMaxDelay;
|
|
let contentMutationObserver;
|
|
const [, setState] = state;
|
|
const {
|
|
_host,
|
|
_viewport,
|
|
_content,
|
|
_isTextarea
|
|
} = structureSetupElements;
|
|
const {
|
|
_nativeScrollbarStyling,
|
|
_flexboxGlue
|
|
} = getEnvironment();
|
|
const contentMutationObserverAttr = _isTextarea ? baseStyleChangingAttrsTextarea : baseStyleChangingAttrs.concat(baseStyleChangingAttrsTextarea);
|
|
const structureSetupUpdateWithDebouncedAdaptiveUpdateHints = debounce(structureSetupUpdate, {
|
|
_timeout: () => debounceTimeout,
|
|
_maxDelay: () => debounceMaxDelay,
|
|
|
|
_mergeParams(prev, curr) {
|
|
const [prevObj] = prev;
|
|
const [currObj] = curr;
|
|
return [keys(prevObj).concat(keys(currObj)).reduce((obj, key) => {
|
|
obj[key] = prevObj[key] || currObj[key];
|
|
return obj;
|
|
}, {})];
|
|
}
|
|
|
|
});
|
|
|
|
const updateViewportAttrsFromHost = attributes => {
|
|
each(attributes || viewportAttrsFromTarget, attribute => {
|
|
if (indexOf(viewportAttrsFromTarget, attribute) > -1) {
|
|
const hostAttr = attr(_host, attribute);
|
|
|
|
if (isString(hostAttr)) {
|
|
attr(_viewport, attribute, hostAttr);
|
|
} else {
|
|
removeAttr(_viewport, attribute);
|
|
}
|
|
}
|
|
});
|
|
};
|
|
|
|
const onTrinsicChanged = heightIntrinsicCache => {
|
|
const [heightIntrinsic, heightIntrinsicChanged] = heightIntrinsicCache;
|
|
setState({
|
|
_heightIntrinsic: heightIntrinsic
|
|
});
|
|
structureSetupUpdate({
|
|
_heightIntrinsicChanged: heightIntrinsicChanged
|
|
});
|
|
};
|
|
|
|
const onSizeChanged = ({
|
|
_sizeChanged,
|
|
_directionIsRTLCache,
|
|
_appear
|
|
}) => {
|
|
const updateFn = !_sizeChanged || _appear ? structureSetupUpdate : structureSetupUpdateWithDebouncedAdaptiveUpdateHints;
|
|
let directionChanged = false;
|
|
|
|
if (_directionIsRTLCache) {
|
|
const [directionIsRTL, directionIsRTLChanged] = _directionIsRTLCache;
|
|
directionChanged = directionIsRTLChanged;
|
|
setState({
|
|
_directionIsRTL: directionIsRTL
|
|
});
|
|
}
|
|
|
|
updateFn({
|
|
_sizeChanged,
|
|
_directionChanged: directionChanged
|
|
});
|
|
};
|
|
|
|
const onContentMutation = contentChangedTroughEvent => {
|
|
const updateFn = contentChangedTroughEvent ? structureSetupUpdate : structureSetupUpdateWithDebouncedAdaptiveUpdateHints;
|
|
updateFn({
|
|
_contentMutation: true
|
|
});
|
|
};
|
|
|
|
const onHostMutation = (targetChangedAttrs, targetStyleChanged) => {
|
|
if (targetStyleChanged) {
|
|
structureSetupUpdateWithDebouncedAdaptiveUpdateHints({
|
|
_hostMutation: true
|
|
});
|
|
} else {
|
|
updateViewportAttrsFromHost(targetChangedAttrs);
|
|
}
|
|
};
|
|
|
|
const destroyTrinsicObserver = (_content || !_flexboxGlue) && createTrinsicObserver(_host, onTrinsicChanged);
|
|
const destroySizeObserver = createSizeObserver(_host, onSizeChanged, {
|
|
_appear: true,
|
|
_direction: !_nativeScrollbarStyling
|
|
});
|
|
const [destroyHostMutationObserver] = createDOMObserver(_host, false, onHostMutation, {
|
|
_styleChangingAttributes: baseStyleChangingAttrs,
|
|
_attributes: baseStyleChangingAttrs.concat(viewportAttrsFromTarget),
|
|
_ignoreTargetChange: ignoreTargetChange
|
|
});
|
|
updateViewportAttrsFromHost();
|
|
return [checkOption => {
|
|
const [elementEvents, elementEventsChanged] = checkOption('updating.elementEvents');
|
|
const [attributes, attributesChanged] = checkOption('updating.attributes');
|
|
const [debounceValue, debounceChanged] = checkOption('updating.debounce');
|
|
const updateContentMutationObserver = elementEventsChanged || attributesChanged;
|
|
|
|
if (updateContentMutationObserver) {
|
|
if (contentMutationObserver) {
|
|
contentMutationObserver[1]();
|
|
contentMutationObserver[0]();
|
|
}
|
|
|
|
contentMutationObserver = createDOMObserver(_content || _viewport, true, onContentMutation, {
|
|
_styleChangingAttributes: contentMutationObserverAttr.concat(attributes || []),
|
|
_attributes: contentMutationObserverAttr.concat(attributes || []),
|
|
_eventContentChange: elementEvents,
|
|
_ignoreNestedTargetChange: ignoreTargetChange
|
|
});
|
|
}
|
|
|
|
if (debounceChanged) {
|
|
structureSetupUpdateWithDebouncedAdaptiveUpdateHints._flush();
|
|
|
|
if (isArray(debounceValue)) {
|
|
const timeout = debounceValue[0];
|
|
const maxWait = debounceValue[1];
|
|
debounceTimeout = isNumber(timeout) ? timeout : false;
|
|
debounceMaxDelay = isNumber(maxWait) ? maxWait : false;
|
|
} else if (isNumber(debounceValue)) {
|
|
debounceTimeout = debounceValue;
|
|
debounceMaxDelay = false;
|
|
} else {
|
|
debounceTimeout = false;
|
|
debounceMaxDelay = false;
|
|
}
|
|
}
|
|
}, () => {
|
|
contentMutationObserver && contentMutationObserver[0]();
|
|
destroyTrinsicObserver && destroyTrinsicObserver();
|
|
destroySizeObserver();
|
|
destroyHostMutationObserver();
|
|
}];
|
|
};
|
|
|
|
const initialStructureSetupUpdateState = {
|
|
_padding: {
|
|
t: 0,
|
|
r: 0,
|
|
b: 0,
|
|
l: 0
|
|
},
|
|
_paddingAbsolute: false,
|
|
_viewportPaddingStyle: {
|
|
marginRight: 0,
|
|
marginBottom: 0,
|
|
marginLeft: 0,
|
|
paddingTop: 0,
|
|
paddingRight: 0,
|
|
paddingBottom: 0,
|
|
paddingLeft: 0
|
|
},
|
|
_overflowAmount: {
|
|
w: 0,
|
|
h: 0
|
|
},
|
|
_overflowScroll: {
|
|
x: false,
|
|
y: false
|
|
},
|
|
_hasOverflow: {
|
|
x: false,
|
|
y: false
|
|
},
|
|
_heightIntrinsic: false,
|
|
_directionIsRTL: false
|
|
};
|
|
const createStructureSetup = (target, options) => {
|
|
const checkOptionsFallback = createOptionCheck(options, {});
|
|
const state = createState(initialStructureSetupUpdateState);
|
|
const onUpdatedListeners = new Set();
|
|
const [getState] = state;
|
|
|
|
const runOnUpdatedListeners = (updateHints, changedOptions, force) => {
|
|
runEach(onUpdatedListeners, [updateHints, changedOptions || {}, !!force]);
|
|
};
|
|
|
|
const [elements, destroyElements] = createStructureSetupElements(target);
|
|
const updateStructure = createStructureSetupUpdate(elements, state);
|
|
const [updateObservers, destroyObservers] = createStructureSetupObservers(elements, state, updateHints => {
|
|
runOnUpdatedListeners(updateStructure(checkOptionsFallback, updateHints));
|
|
});
|
|
const structureSetupState = getState.bind(0);
|
|
|
|
structureSetupState._addOnUpdatedListener = listener => {
|
|
onUpdatedListeners.add(listener);
|
|
};
|
|
|
|
structureSetupState._elements = elements;
|
|
return [(changedOptions, force) => {
|
|
const checkOption = createOptionCheck(options, changedOptions, force);
|
|
updateObservers(checkOption);
|
|
runOnUpdatedListeners(updateStructure(checkOption, {}, force));
|
|
}, structureSetupState, () => {
|
|
onUpdatedListeners.clear();
|
|
destroyObservers();
|
|
destroyElements();
|
|
}];
|
|
};
|
|
|
|
const generateScrollbarDOM = scrollbarClassName => {
|
|
const scrollbar = createDiv(`${classNameScrollbar} ${scrollbarClassName}`);
|
|
const track = createDiv(classNameScrollbarTrack);
|
|
const handle = createDiv(classNameScrollbarHandle);
|
|
appendChildren(scrollbar, track);
|
|
appendChildren(track, handle);
|
|
return {
|
|
_scrollbar: scrollbar,
|
|
_track: track,
|
|
_handle: handle
|
|
};
|
|
};
|
|
|
|
const createScrollbarsSetupElements = (target, structureSetupElements) => {
|
|
const {
|
|
_getInitializationStrategy
|
|
} = getEnvironment();
|
|
|
|
const {
|
|
_scrollbarsSlot: environmentScrollbarSlot
|
|
} = _getInitializationStrategy();
|
|
|
|
const {
|
|
_target,
|
|
_host,
|
|
_viewport,
|
|
_targetIsElm
|
|
} = structureSetupElements;
|
|
const initializationScrollbarSlot = !_targetIsElm && target.scrollbarsSlot;
|
|
const initializationScrollbarSlotResult = isFunction(initializationScrollbarSlot) ? initializationScrollbarSlot(_target, _host, _viewport) : initializationScrollbarSlot;
|
|
const evaluatedScrollbarSlot = initializationScrollbarSlotResult || (isFunction(environmentScrollbarSlot) ? environmentScrollbarSlot(_target, _host, _viewport) : environmentScrollbarSlot) || _host;
|
|
const horizontalScrollbarStructure = generateScrollbarDOM(classNameScrollbarHorizontal);
|
|
const verticalScrollbarStructure = generateScrollbarDOM(classNameScrollbarVertical);
|
|
const {
|
|
_scrollbar: horizontalScrollbar
|
|
} = horizontalScrollbarStructure;
|
|
const {
|
|
_scrollbar: verticalScrollbar
|
|
} = verticalScrollbarStructure;
|
|
appendChildren(evaluatedScrollbarSlot, horizontalScrollbar);
|
|
appendChildren(evaluatedScrollbarSlot, verticalScrollbar);
|
|
return [{
|
|
_horizontalScrollbarStructure: horizontalScrollbarStructure,
|
|
_verticalScrollbarStructure: verticalScrollbarStructure
|
|
}, removeElements.bind(0, [horizontalScrollbar, verticalScrollbar])];
|
|
};
|
|
|
|
const createScrollbarsSetup = (target, options, structureSetupElements) => {
|
|
const state = createState({});
|
|
const [getState] = state;
|
|
const [elements, destroyElements] = createScrollbarsSetupElements(target, structureSetupElements);
|
|
const scrollbarsSetupState = getState.bind(0);
|
|
scrollbarsSetupState._elements = elements;
|
|
return [(changedOptions, force) => {
|
|
const checkOption = createOptionCheck(options, changedOptions, force);
|
|
console.log(checkOption);
|
|
}, scrollbarsSetupState, () => {
|
|
destroyElements();
|
|
}];
|
|
};
|
|
|
|
const pluginRegistry = {};
|
|
const getPlugins = () => assignDeep({}, pluginRegistry);
|
|
const addPlugin = addedPlugin => each(isArray(addedPlugin) ? addedPlugin : [addedPlugin], plugin => {
|
|
pluginRegistry[plugin[0]] = plugin[1];
|
|
});
|
|
|
|
function getDefaultExportFromCjs (x) {
|
|
return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, 'default') ? x['default'] : x;
|
|
}
|
|
|
|
var _extends = {exports: {}};
|
|
|
|
(function (module) {
|
|
function _extends() {
|
|
module.exports = _extends = Object.assign ? Object.assign.bind() : function (target) {
|
|
for (var i = 1; i < arguments.length; i++) {
|
|
var source = arguments[i];
|
|
|
|
for (var key in source) {
|
|
if (Object.prototype.hasOwnProperty.call(source, key)) {
|
|
target[key] = source[key];
|
|
}
|
|
}
|
|
}
|
|
|
|
return target;
|
|
}, module.exports.__esModule = true, module.exports["default"] = module.exports;
|
|
return _extends.apply(this, arguments);
|
|
}
|
|
|
|
module.exports = _extends, module.exports.__esModule = true, module.exports["default"] = module.exports;
|
|
})(_extends);
|
|
|
|
getDefaultExportFromCjs(_extends.exports);
|
|
|
|
const templateTypePrefixSuffix = ['__TPL_', '_TYPE__'];
|
|
const optionsTemplateTypes = ['boolean', 'number', 'string', 'array', 'object', 'function', 'null'].reduce((result, item) => {
|
|
result[item] = templateTypePrefixSuffix[0] + item + templateTypePrefixSuffix[1];
|
|
return result;
|
|
}, {});
|
|
|
|
const numberAllowedValues = optionsTemplateTypes.number;
|
|
const booleanAllowedValues = optionsTemplateTypes.boolean;
|
|
const arrayNullValues = [optionsTemplateTypes.array, optionsTemplateTypes.null];
|
|
const stringArrayNullAllowedValues = [optionsTemplateTypes.string, optionsTemplateTypes.array, optionsTemplateTypes.null];
|
|
const resizeAllowedValues = 'none both horizontal vertical';
|
|
const overflowAllowedValues = 'hidden scroll visible visible-hidden';
|
|
const scrollbarsVisibilityAllowedValues = 'visible hidden auto';
|
|
const scrollbarsAutoHideAllowedValues = 'never scroll leavemove';
|
|
({
|
|
resize: resizeAllowedValues,
|
|
paddingAbsolute: booleanAllowedValues,
|
|
updating: {
|
|
elementEvents: arrayNullValues,
|
|
attributes: arrayNullValues,
|
|
debounce: [optionsTemplateTypes.number, optionsTemplateTypes.array, optionsTemplateTypes.null]
|
|
},
|
|
overflow: {
|
|
x: overflowAllowedValues,
|
|
y: overflowAllowedValues
|
|
},
|
|
scrollbars: {
|
|
visibility: scrollbarsVisibilityAllowedValues,
|
|
autoHide: scrollbarsAutoHideAllowedValues,
|
|
autoHideDelay: numberAllowedValues,
|
|
dragScroll: booleanAllowedValues,
|
|
clickScroll: booleanAllowedValues,
|
|
touch: booleanAllowedValues
|
|
},
|
|
textarea: {
|
|
dynWidth: booleanAllowedValues,
|
|
dynHeight: booleanAllowedValues,
|
|
inheritedAttrs: stringArrayNullAllowedValues
|
|
},
|
|
nativeScrollbarsOverlaid: {
|
|
show: booleanAllowedValues,
|
|
initialize: booleanAllowedValues
|
|
},
|
|
callbacks: {
|
|
onUpdated: [optionsTemplateTypes.function, optionsTemplateTypes.null]
|
|
}
|
|
});
|
|
const optionsValidationPluginName = '__osOptionsValidationPlugin';
|
|
|
|
const targets = new Set();
|
|
const targetInstanceMap = new WeakMap();
|
|
const addInstance = (target, osInstance) => {
|
|
targetInstanceMap.set(target, osInstance);
|
|
targets.add(target);
|
|
};
|
|
const removeInstance = target => {
|
|
targetInstanceMap.delete(target);
|
|
targets.delete(target);
|
|
};
|
|
const getInstance = target => targetInstanceMap.get(target);
|
|
|
|
const createOSEventListenerHub = initialEventListeners => createEventListenerHub(initialEventListeners);
|
|
|
|
const createOverflowChangedArgs = (overflowAmount, hasOverflow, overflowScroll) => ({
|
|
amount: {
|
|
x: overflowAmount.w,
|
|
y: overflowAmount.h
|
|
},
|
|
overflow: hasOverflow,
|
|
scrollableOverflow: assignDeep({}, overflowScroll)
|
|
});
|
|
|
|
const OverlayScrollbars = (target, options, eventListeners) => {
|
|
const {
|
|
_getDefaultOptions,
|
|
_nativeScrollbarIsOverlaid,
|
|
_addListener: addEnvListener
|
|
} = getEnvironment();
|
|
const plugins = getPlugins();
|
|
const instanceTarget = isHTMLElement(target) ? target : target.target;
|
|
const potentialInstance = getInstance(instanceTarget);
|
|
|
|
if (potentialInstance) {
|
|
return potentialInstance;
|
|
}
|
|
|
|
const optionsValidationPlugin = plugins[optionsValidationPluginName];
|
|
|
|
const validateOptions = newOptions => {
|
|
const opts = newOptions || {};
|
|
const validate = optionsValidationPlugin && optionsValidationPlugin._;
|
|
return validate ? validate(opts, true) : opts;
|
|
};
|
|
|
|
const currentOptions = assignDeep({}, _getDefaultOptions(), validateOptions(options));
|
|
const [addEvent, removeEvent, triggerEvent] = createOSEventListenerHub(eventListeners);
|
|
|
|
if (_nativeScrollbarIsOverlaid.x && _nativeScrollbarIsOverlaid.y && !currentOptions.nativeScrollbarsOverlaid.initialize) {
|
|
triggerEvent('initializationWithdrawn');
|
|
}
|
|
|
|
const [updateStructure, structureState, destroyStructure] = createStructureSetup(target, currentOptions);
|
|
const [updateScrollbars,, destroyScrollbars] = createScrollbarsSetup(target, currentOptions, structureState._elements);
|
|
|
|
const update = (changedOptions, force) => {
|
|
updateStructure(changedOptions, force);
|
|
updateScrollbars(changedOptions, force);
|
|
};
|
|
|
|
structureState._addOnUpdatedListener((updateHints, changedOptions, force) => {
|
|
const {
|
|
_sizeChanged,
|
|
_directionChanged,
|
|
_heightIntrinsicChanged,
|
|
_overflowAmountChanged,
|
|
_overflowScrollChanged,
|
|
_contentMutation,
|
|
_hostMutation
|
|
} = updateHints;
|
|
const {
|
|
_overflowAmount,
|
|
_overflowScroll,
|
|
_hasOverflow
|
|
} = structureState();
|
|
|
|
if (_overflowAmountChanged || _overflowScrollChanged) {
|
|
triggerEvent('overflowChanged', assignDeep({}, createOverflowChangedArgs(_overflowAmount, _hasOverflow, _overflowScroll), {
|
|
previous: createOverflowChangedArgs(_overflowAmount, _hasOverflow, _overflowScroll)
|
|
}));
|
|
}
|
|
|
|
triggerEvent('updated', {
|
|
updateHints: {
|
|
sizeChanged: _sizeChanged,
|
|
directionChanged: _directionChanged,
|
|
heightIntrinsicChanged: _heightIntrinsicChanged,
|
|
overflowAmountChanged: _overflowAmountChanged,
|
|
overflowScrollChanged: _overflowScrollChanged,
|
|
contentMutation: _contentMutation,
|
|
hostMutation: _hostMutation
|
|
},
|
|
changedOptions,
|
|
force
|
|
});
|
|
});
|
|
|
|
const removeEnvListener = addEnvListener(update.bind(0, {}, true));
|
|
const instance = {
|
|
options(newOptions) {
|
|
if (newOptions) {
|
|
const changedOptions = getOptionsDiff(currentOptions, validateOptions(newOptions));
|
|
|
|
if (!isEmptyObject(changedOptions)) {
|
|
assignDeep(currentOptions, changedOptions);
|
|
update(changedOptions);
|
|
}
|
|
}
|
|
|
|
return currentOptions;
|
|
},
|
|
|
|
on: addEvent,
|
|
off: removeEvent,
|
|
state: () => ({
|
|
_overflowAmount: structureState()._overflowAmount
|
|
}),
|
|
|
|
update(force) {
|
|
update({}, force);
|
|
},
|
|
|
|
destroy: () => {
|
|
removeInstance(instanceTarget);
|
|
removeEnvListener();
|
|
removeEvent();
|
|
destroyScrollbars();
|
|
destroyStructure();
|
|
triggerEvent('destroyed');
|
|
}
|
|
};
|
|
each(keys(plugins), pluginName => {
|
|
const pluginInstance = plugins[pluginName];
|
|
|
|
if (isFunction(pluginInstance)) {
|
|
pluginInstance(OverlayScrollbars, instance);
|
|
}
|
|
});
|
|
instance.update(true);
|
|
addInstance(instanceTarget, instance);
|
|
triggerEvent('initialized');
|
|
return instance;
|
|
};
|
|
OverlayScrollbars.extend = addPlugin;
|
|
|
|
export { OverlayScrollbars as default };
|
|
//# sourceMappingURL=overlayscrollbars.esm.js.map
|