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| Viewing file: Select action/file-type: (function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
typeof define === 'function' && define.amd ? define(factory) :
(global = global || self, global.Alpine = factory());
}(this, (function () { 'use strict';
function _defineProperty(obj, key, value) {
if (key in obj) {
Object.defineProperty(obj, key, {
value: value,
enumerable: true,
configurable: true,
writable: true
});
} else {
obj[key] = value;
}
return obj;
}
function ownKeys(object, enumerableOnly) {
var keys = Object.keys(object);
if (Object.getOwnPropertySymbols) {
var symbols = Object.getOwnPropertySymbols(object);
if (enumerableOnly) symbols = symbols.filter(function (sym) {
return Object.getOwnPropertyDescriptor(object, sym).enumerable;
});
keys.push.apply(keys, symbols);
}
return keys;
}
function _objectSpread2(target) {
for (var i = 1; i < arguments.length; i++) {
var source = arguments[i] != null ? arguments[i] : {};
if (i % 2) {
ownKeys(Object(source), true).forEach(function (key) {
_defineProperty(target, key, source[key]);
});
} else if (Object.getOwnPropertyDescriptors) {
Object.defineProperties(target, Object.getOwnPropertyDescriptors(source));
} else {
ownKeys(Object(source)).forEach(function (key) {
Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key));
});
}
}
return target;
}
// Thanks @stimulus:
// https://github.com/stimulusjs/stimulus/blob/master/packages/%40stimulus/core/src/application.ts
function domReady() {
return new Promise(resolve => {
if (document.readyState == "loading") {
document.addEventListener("DOMContentLoaded", resolve);
} else {
resolve();
}
});
}
function arrayUnique(array) {
return Array.from(new Set(array));
}
function isTesting() {
return navigator.userAgent.includes("Node.js") || navigator.userAgent.includes("jsdom");
}
function checkedAttrLooseCompare(valueA, valueB) {
return valueA == valueB;
}
function warnIfMalformedTemplate(el, directive) {
if (el.tagName.toLowerCase() !== 'template') {
console.warn(`Alpine: [${directive}] directive should only be added to <template> tags. See https://github.com/alpinejs/alpine#${directive}`);
} else if (el.content.childElementCount !== 1) {
console.warn(`Alpine: <template> tag with [${directive}] encountered with multiple element roots. Make sure <template> only has a single child element.`);
}
}
function kebabCase(subject) {
return subject.replace(/([a-z])([A-Z])/g, '$1-$2').replace(/[_\s]/, '-').toLowerCase();
}
function camelCase(subject) {
return subject.toLowerCase().replace(/-(\w)/g, (match, char) => char.toUpperCase());
}
function walk(el, callback) {
if (callback(el) === false) return;
let node = el.firstElementChild;
while (node) {
walk(node, callback);
node = node.nextElementSibling;
}
}
function debounce(func, wait) {
var timeout;
return function () {
var context = this,
args = arguments;
var later = function later() {
timeout = null;
func.apply(context, args);
};
clearTimeout(timeout);
timeout = setTimeout(later, wait);
};
}
const handleError = (el, expression, error) => {
console.warn(`Alpine Error: "${error}"\n\nExpression: "${expression}"\nElement:`, el);
if (!isTesting()) {
throw error;
}
};
function tryCatch(cb, {
el,
expression
}) {
try {
const value = cb();
return value instanceof Promise ? value.catch(e => handleError(el, expression, e)) : value;
} catch (e) {
handleError(el, expression, e);
}
}
function saferEval(el, expression, dataContext, additionalHelperVariables = {}) {
return tryCatch(() => {
if (typeof expression === 'function') {
return expression.call(dataContext);
}
return new Function(['$data', ...Object.keys(additionalHelperVariables)], `var __alpine_result; with($data) { __alpine_result = ${expression} }; return __alpine_result`)(dataContext, ...Object.values(additionalHelperVariables));
}, {
el,
expression
});
}
function saferEvalNoReturn(el, expression, dataContext, additionalHelperVariables = {}) {
return tryCatch(() => {
if (typeof expression === 'function') {
return Promise.resolve(expression.call(dataContext, additionalHelperVariables['$event']));
}
let AsyncFunction = Function;
/* MODERN-ONLY:START */
AsyncFunction = Object.getPrototypeOf(async function () {}).constructor;
/* MODERN-ONLY:END */
// For the cases when users pass only a function reference to the caller: `x-on:click="foo"`
// Where "foo" is a function. Also, we'll pass the function the event instance when we call it.
if (Object.keys(dataContext).includes(expression)) {
let methodReference = new Function(['dataContext', ...Object.keys(additionalHelperVariables)], `with(dataContext) { return ${expression} }`)(dataContext, ...Object.values(additionalHelperVariables));
if (typeof methodReference === 'function') {
return Promise.resolve(methodReference.call(dataContext, additionalHelperVariables['$event']));
} else {
return Promise.resolve();
}
}
return Promise.resolve(new AsyncFunction(['dataContext', ...Object.keys(additionalHelperVariables)], `with(dataContext) { ${expression} }`)(dataContext, ...Object.values(additionalHelperVariables)));
}, {
el,
expression
});
}
const xAttrRE = /^x-(on|bind|data|text|html|model|if|for|show|cloak|transition|ref|spread)\b/;
function isXAttr(attr) {
const name = replaceAtAndColonWithStandardSyntax(attr.name);
return xAttrRE.test(name);
}
function getXAttrs(el, component, type) {
let directives = Array.from(el.attributes).filter(isXAttr).map(parseHtmlAttribute); // Get an object of directives from x-spread.
let spreadDirective = directives.filter(directive => directive.type === 'spread')[0];
if (spreadDirective) {
let spreadObject = saferEval(el, spreadDirective.expression, component.$data); // Add x-spread directives to the pile of existing directives.
directives = directives.concat(Object.entries(spreadObject).map(([name, value]) => parseHtmlAttribute({
name,
value
})));
}
if (type) return directives.filter(i => i.type === type);
return sortDirectives(directives);
}
function sortDirectives(directives) {
let directiveOrder = ['bind', 'model', 'show', 'catch-all'];
return directives.sort((a, b) => {
let typeA = directiveOrder.indexOf(a.type) === -1 ? 'catch-all' : a.type;
let typeB = directiveOrder.indexOf(b.type) === -1 ? 'catch-all' : b.type;
return directiveOrder.indexOf(typeA) - directiveOrder.indexOf(typeB);
});
}
function parseHtmlAttribute({
name,
value
}) {
const normalizedName = replaceAtAndColonWithStandardSyntax(name);
const typeMatch = normalizedName.match(xAttrRE);
const valueMatch = normalizedName.match(/:([a-zA-Z0-9\-:]+)/);
const modifiers = normalizedName.match(/\.[^.\]]+(?=[^\]]*$)/g) || [];
return {
type: typeMatch ? typeMatch[1] : null,
value: valueMatch ? valueMatch[1] : null,
modifiers: modifiers.map(i => i.replace('.', '')),
expression: value
};
}
function isBooleanAttr(attrName) {
// As per HTML spec table https://html.spec.whatwg.org/multipage/indices.html#attributes-3:boolean-attribute
// Array roughly ordered by estimated usage
const booleanAttributes = ['disabled', 'checked', 'required', 'readonly', 'hidden', 'open', 'selected', 'autofocus', 'itemscope', 'multiple', 'novalidate', 'allowfullscreen', 'allowpaymentrequest', 'formnovalidate', 'autoplay', 'controls', 'loop', 'muted', 'playsinline', 'default', 'ismap', 'reversed', 'async', 'defer', 'nomodule'];
return booleanAttributes.includes(attrName);
}
function replaceAtAndColonWithStandardSyntax(name) {
if (name.startsWith('@')) {
return name.replace('@', 'x-on:');
} else if (name.startsWith(':')) {
return name.replace(':', 'x-bind:');
}
return name;
}
function convertClassStringToArray(classList, filterFn = Boolean) {
return classList.split(' ').filter(filterFn);
}
const TRANSITION_TYPE_IN = 'in';
const TRANSITION_TYPE_OUT = 'out';
const TRANSITION_CANCELLED = 'cancelled';
function transitionIn(el, show, reject, component, forceSkip = false) {
// We don't want to transition on the initial page load.
if (forceSkip) return show();
if (el.__x_transition && el.__x_transition.type === TRANSITION_TYPE_IN) {
// there is already a similar transition going on, this was probably triggered by
// a change in a different property, let's just leave the previous one doing its job
return;
}
const attrs = getXAttrs(el, component, 'transition');
const showAttr = getXAttrs(el, component, 'show')[0]; // If this is triggered by a x-show.transition.
if (showAttr && showAttr.modifiers.includes('transition')) {
let modifiers = showAttr.modifiers; // If x-show.transition.out, we'll skip the "in" transition.
if (modifiers.includes('out') && !modifiers.includes('in')) return show();
const settingBothSidesOfTransition = modifiers.includes('in') && modifiers.includes('out'); // If x-show.transition.in...out... only use "in" related modifiers for this transition.
modifiers = settingBothSidesOfTransition ? modifiers.filter((i, index) => index < modifiers.indexOf('out')) : modifiers;
transitionHelperIn(el, modifiers, show, reject); // Otherwise, we can assume x-transition:enter.
} else if (attrs.some(attr => ['enter', 'enter-start', 'enter-end'].includes(attr.value))) {
transitionClassesIn(el, component, attrs, show, reject);
} else {
// If neither, just show that damn thing.
show();
}
}
function transitionOut(el, hide, reject, component, forceSkip = false) {
// We don't want to transition on the initial page load.
if (forceSkip) return hide();
if (el.__x_transition && el.__x_transition.type === TRANSITION_TYPE_OUT) {
// there is already a similar transition going on, this was probably triggered by
// a change in a different property, let's just leave the previous one doing its job
return;
}
const attrs = getXAttrs(el, component, 'transition');
const showAttr = getXAttrs(el, component, 'show')[0];
if (showAttr && showAttr.modifiers.includes('transition')) {
let modifiers = showAttr.modifiers;
if (modifiers.includes('in') && !modifiers.includes('out')) return hide();
const settingBothSidesOfTransition = modifiers.includes('in') && modifiers.includes('out');
modifiers = settingBothSidesOfTransition ? modifiers.filter((i, index) => index > modifiers.indexOf('out')) : modifiers;
transitionHelperOut(el, modifiers, settingBothSidesOfTransition, hide, reject);
} else if (attrs.some(attr => ['leave', 'leave-start', 'leave-end'].includes(attr.value))) {
transitionClassesOut(el, component, attrs, hide, reject);
} else {
hide();
}
}
function transitionHelperIn(el, modifiers, showCallback, reject) {
// Default values inspired by: https://material.io/design/motion/speed.html#duration
const styleValues = {
duration: modifierValue(modifiers, 'duration', 150),
origin: modifierValue(modifiers, 'origin', 'center'),
first: {
opacity: 0,
scale: modifierValue(modifiers, 'scale', 95)
},
second: {
opacity: 1,
scale: 100
}
};
transitionHelper(el, modifiers, showCallback, () => {}, reject, styleValues, TRANSITION_TYPE_IN);
}
function transitionHelperOut(el, modifiers, settingBothSidesOfTransition, hideCallback, reject) {
// Make the "out" transition .5x slower than the "in". (Visually better)
// HOWEVER, if they explicitly set a duration for the "out" transition,
// use that.
const duration = settingBothSidesOfTransition ? modifierValue(modifiers, 'duration', 150) : modifierValue(modifiers, 'duration', 150) / 2;
const styleValues = {
duration: duration,
origin: modifierValue(modifiers, 'origin', 'center'),
first: {
opacity: 1,
scale: 100
},
second: {
opacity: 0,
scale: modifierValue(modifiers, 'scale', 95)
}
};
transitionHelper(el, modifiers, () => {}, hideCallback, reject, styleValues, TRANSITION_TYPE_OUT);
}
function modifierValue(modifiers, key, fallback) {
// If the modifier isn't present, use the default.
if (modifiers.indexOf(key) === -1) return fallback; // If it IS present, grab the value after it: x-show.transition.duration.500ms
const rawValue = modifiers[modifiers.indexOf(key) + 1];
if (!rawValue) return fallback;
if (key === 'scale') {
// Check if the very next value is NOT a number and return the fallback.
// If x-show.transition.scale, we'll use the default scale value.
// That is how a user opts out of the opacity transition.
if (!isNumeric(rawValue)) return fallback;
}
if (key === 'duration') {
// Support x-show.transition.duration.500ms && duration.500
let match = rawValue.match(/([0-9]+)ms/);
if (match) return match[1];
}
if (key === 'origin') {
// Support chaining origin directions: x-show.transition.top.right
if (['top', 'right', 'left', 'center', 'bottom'].includes(modifiers[modifiers.indexOf(key) + 2])) {
return [rawValue, modifiers[modifiers.indexOf(key) + 2]].join(' ');
}
}
return rawValue;
}
function transitionHelper(el, modifiers, hook1, hook2, reject, styleValues, type) {
// clear the previous transition if exists to avoid caching the wrong styles
if (el.__x_transition) {
el.__x_transition.cancel && el.__x_transition.cancel();
} // If the user set these style values, we'll put them back when we're done with them.
const opacityCache = el.style.opacity;
const transformCache = el.style.transform;
const transformOriginCache = el.style.transformOrigin; // If no modifiers are present: x-show.transition, we'll default to both opacity and scale.
const noModifiers = !modifiers.includes('opacity') && !modifiers.includes('scale');
const transitionOpacity = noModifiers || modifiers.includes('opacity');
const transitionScale = noModifiers || modifiers.includes('scale'); // These are the explicit stages of a transition (same stages for in and for out).
// This way you can get a birds eye view of the hooks, and the differences
// between them.
const stages = {
start() {
if (transitionOpacity) el.style.opacity = styleValues.first.opacity;
if (transitionScale) el.style.transform = `scale(${styleValues.first.scale / 100})`;
},
during() {
if (transitionScale) el.style.transformOrigin = styleValues.origin;
el.style.transitionProperty = [transitionOpacity ? `opacity` : ``, transitionScale ? `transform` : ``].join(' ').trim();
el.style.transitionDuration = `${styleValues.duration / 1000}s`;
el.style.transitionTimingFunction = `cubic-bezier(0.4, 0.0, 0.2, 1)`;
},
show() {
hook1();
},
end() {
if (transitionOpacity) el.style.opacity = styleValues.second.opacity;
if (transitionScale) el.style.transform = `scale(${styleValues.second.scale / 100})`;
},
hide() {
hook2();
},
cleanup() {
if (transitionOpacity) el.style.opacity = opacityCache;
if (transitionScale) el.style.transform = transformCache;
if (transitionScale) el.style.transformOrigin = transformOriginCache;
el.style.transitionProperty = null;
el.style.transitionDuration = null;
el.style.transitionTimingFunction = null;
}
};
transition(el, stages, type, reject);
}
const ensureStringExpression = (expression, el, component) => {
return typeof expression === 'function' ? component.evaluateReturnExpression(el, expression) : expression;
};
function transitionClassesIn(el, component, directives, showCallback, reject) {
const enter = convertClassStringToArray(ensureStringExpression((directives.find(i => i.value === 'enter') || {
expression: ''
}).expression, el, component));
const enterStart = convertClassStringToArray(ensureStringExpression((directives.find(i => i.value === 'enter-start') || {
expression: ''
}).expression, el, component));
const enterEnd = convertClassStringToArray(ensureStringExpression((directives.find(i => i.value === 'enter-end') || {
expression: ''
}).expression, el, component));
transitionClasses(el, enter, enterStart, enterEnd, showCallback, () => {}, TRANSITION_TYPE_IN, reject);
}
function transitionClassesOut(el, component, directives, hideCallback, reject) {
const leave = convertClassStringToArray(ensureStringExpression((directives.find(i => i.value === 'leave') || {
expression: ''
}).expression, el, component));
const leaveStart = convertClassStringToArray(ensureStringExpression((directives.find(i => i.value === 'leave-start') || {
expression: ''
}).expression, el, component));
const leaveEnd = convertClassStringToArray(ensureStringExpression((directives.find(i => i.value === 'leave-end') || {
expression: ''
}).expression, el, component));
transitionClasses(el, leave, leaveStart, leaveEnd, () => {}, hideCallback, TRANSITION_TYPE_OUT, reject);
}
function transitionClasses(el, classesDuring, classesStart, classesEnd, hook1, hook2, type, reject) {
// clear the previous transition if exists to avoid caching the wrong classes
if (el.__x_transition) {
el.__x_transition.cancel && el.__x_transition.cancel();
}
const originalClasses = el.__x_original_classes || [];
const stages = {
start() {
el.classList.add(...classesStart);
},
during() {
el.classList.add(...classesDuring);
},
show() {
hook1();
},
end() {
// Don't remove classes that were in the original class attribute.
el.classList.remove(...classesStart.filter(i => !originalClasses.includes(i)));
el.classList.add(...classesEnd);
},
hide() {
hook2();
},
cleanup() {
el.classList.remove(...classesDuring.filter(i => !originalClasses.includes(i)));
el.classList.remove(...classesEnd.filter(i => !originalClasses.includes(i)));
}
};
transition(el, stages, type, reject);
}
function transition(el, stages, type, reject) {
const finish = once(() => {
stages.hide(); // Adding an "isConnected" check, in case the callback
// removed the element from the DOM.
if (el.isConnected) {
stages.cleanup();
}
delete el.__x_transition;
});
el.__x_transition = {
// Set transition type so we can avoid clearing transition if the direction is the same
type: type,
// create a callback for the last stages of the transition so we can call it
// from different point and early terminate it. Once will ensure that function
// is only called one time.
cancel: once(() => {
reject(TRANSITION_CANCELLED);
finish();
}),
finish,
// This store the next animation frame so we can cancel it
nextFrame: null
};
stages.start();
stages.during();
el.__x_transition.nextFrame = requestAnimationFrame(() => {
// Note: Safari's transitionDuration property will list out comma separated transition durations
// for every single transition property. Let's grab the first one and call it a day.
let duration = Number(getComputedStyle(el).transitionDuration.replace(/,.*/, '').replace('s', '')) * 1000;
if (duration === 0) {
duration = Number(getComputedStyle(el).animationDuration.replace('s', '')) * 1000;
}
stages.show();
el.__x_transition.nextFrame = requestAnimationFrame(() => {
stages.end();
setTimeout(el.__x_transition.finish, duration);
});
});
}
function isNumeric(subject) {
return !Array.isArray(subject) && !isNaN(subject);
} // Thanks @vuejs
// https://github.com/vuejs/vue/blob/4de4649d9637262a9b007720b59f80ac72a5620c/src/shared/util.js
function once(callback) {
let called = false;
return function () {
if (!called) {
called = true;
callback.apply(this, arguments);
}
};
}
function handleForDirective(component, templateEl, expression, initialUpdate, extraVars) {
warnIfMalformedTemplate(templateEl, 'x-for');
let iteratorNames = typeof expression === 'function' ? parseForExpression(component.evaluateReturnExpression(templateEl, expression)) : parseForExpression(expression);
let items = evaluateItemsAndReturnEmptyIfXIfIsPresentAndFalseOnElement(component, templateEl, iteratorNames, extraVars); // As we walk the array, we'll also walk the DOM (updating/creating as we go).
let currentEl = templateEl;
items.forEach((item, index) => {
let iterationScopeVariables = getIterationScopeVariables(iteratorNames, item, index, items, extraVars());
let currentKey = generateKeyForIteration(component, templateEl, index, iterationScopeVariables);
let nextEl = lookAheadForMatchingKeyedElementAndMoveItIfFound(currentEl.nextElementSibling, currentKey); // If we haven't found a matching key, insert the element at the current position.
if (!nextEl) {
nextEl = addElementInLoopAfterCurrentEl(templateEl, currentEl); // And transition it in if it's not the first page load.
transitionIn(nextEl, () => {}, () => {}, component, initialUpdate);
nextEl.__x_for = iterationScopeVariables;
component.initializeElements(nextEl, () => nextEl.__x_for); // Otherwise update the element we found.
} else {
// Temporarily remove the key indicator to allow the normal "updateElements" to work.
delete nextEl.__x_for_key;
nextEl.__x_for = iterationScopeVariables;
component.updateElements(nextEl, () => nextEl.__x_for);
}
currentEl = nextEl;
currentEl.__x_for_key = currentKey;
});
removeAnyLeftOverElementsFromPreviousUpdate(currentEl, component);
} // This was taken from VueJS 2.* core. Thanks Vue!
function parseForExpression(expression) {
let forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
let stripParensRE = /^\(|\)$/g;
let forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
let inMatch = expression.match(forAliasRE);
if (!inMatch) return;
let res = {};
res.items = inMatch[2].trim();
let item = inMatch[1].trim().replace(stripParensRE, '');
let iteratorMatch = item.match(forIteratorRE);
if (iteratorMatch) {
res.item = item.replace(forIteratorRE, '').trim();
res.index = iteratorMatch[1].trim();
if (iteratorMatch[2]) {
res.collection = iteratorMatch[2].trim();
}
} else {
res.item = item;
}
return res;
}
function getIterationScopeVariables(iteratorNames, item, index, items, extraVars) {
// We must create a new object, so each iteration has a new scope
let scopeVariables = extraVars ? _objectSpread2({}, extraVars) : {};
scopeVariables[iteratorNames.item] = item;
if (iteratorNames.index) scopeVariables[iteratorNames.index] = index;
if (iteratorNames.collection) scopeVariables[iteratorNames.collection] = items;
return scopeVariables;
}
function generateKeyForIteration(component, el, index, iterationScopeVariables) {
let bindKeyAttribute = getXAttrs(el, component, 'bind').filter(attr => attr.value === 'key')[0]; // If the dev hasn't specified a key, just return the index of the iteration.
if (!bindKeyAttribute) return index;
return component.evaluateReturnExpression(el, bindKeyAttribute.expression, () => iterationScopeVariables);
}
function evaluateItemsAndReturnEmptyIfXIfIsPresentAndFalseOnElement(component, el, iteratorNames, extraVars) {
let ifAttribute = getXAttrs(el, component, 'if')[0];
if (ifAttribute && !component.evaluateReturnExpression(el, ifAttribute.expression)) {
return [];
}
let items = component.evaluateReturnExpression(el, iteratorNames.items, extraVars); // This adds support for the `i in n` syntax.
if (isNumeric(items) && items > 0) {
items = Array.from(Array(items).keys(), i => i + 1);
}
return items;
}
function addElementInLoopAfterCurrentEl(templateEl, currentEl) {
let clone = document.importNode(templateEl.content, true);
currentEl.parentElement.insertBefore(clone, currentEl.nextElementSibling);
return currentEl.nextElementSibling;
}
function lookAheadForMatchingKeyedElementAndMoveItIfFound(nextEl, currentKey) {
if (!nextEl) return; // If we are already past the x-for generated elements, we don't need to look ahead.
if (nextEl.__x_for_key === undefined) return; // If the the key's DO match, no need to look ahead.
if (nextEl.__x_for_key === currentKey) return nextEl; // If they don't, we'll look ahead for a match.
// If we find it, we'll move it to the current position in the loop.
let tmpNextEl = nextEl;
while (tmpNextEl) {
if (tmpNextEl.__x_for_key === currentKey) {
return tmpNextEl.parentElement.insertBefore(tmpNextEl, nextEl);
}
tmpNextEl = tmpNextEl.nextElementSibling && tmpNextEl.nextElementSibling.__x_for_key !== undefined ? tmpNextEl.nextElementSibling : false;
}
}
function removeAnyLeftOverElementsFromPreviousUpdate(currentEl, component) {
var nextElementFromOldLoop = currentEl.nextElementSibling && currentEl.nextElementSibling.__x_for_key !== undefined ? currentEl.nextElementSibling : false;
while (nextElementFromOldLoop) {
let nextElementFromOldLoopImmutable = nextElementFromOldLoop;
let nextSibling = nextElementFromOldLoop.nextElementSibling;
transitionOut(nextElementFromOldLoop, () => {
nextElementFromOldLoopImmutable.remove();
}, () => {}, component);
nextElementFromOldLoop = nextSibling && nextSibling.__x_for_key !== undefined ? nextSibling : false;
}
}
function handleAttributeBindingDirective(component, el, attrName, expression, extraVars, attrType, modifiers) {
var value = component.evaluateReturnExpression(el, expression, extraVars);
if (attrName === 'value') {
if (Alpine.ignoreFocusedForValueBinding && document.activeElement.isSameNode(el)) return; // If nested model key is undefined, set the default value to empty string.
if (value === undefined && expression.match(/\./)) {
value = '';
}
if (el.type === 'radio') {
// Set radio value from x-bind:value, if no "value" attribute exists.
// If there are any initial state values, radio will have a correct
// "checked" value since x-bind:value is processed before x-model.
if (el.attributes.value === undefined && attrType === 'bind') {
el.value = value;
} else if (attrType !== 'bind') {
el.checked = checkedAttrLooseCompare(el.value, value);
}
} else if (el.type === 'checkbox') {
// If we are explicitly binding a string to the :value, set the string,
// If the value is a boolean, leave it alone, it will be set to "on"
// automatically.
if (typeof value !== 'boolean' && ![null, undefined].includes(value) && attrType === 'bind') {
el.value = String(value);
} else if (attrType !== 'bind') {
if (Array.isArray(value)) {
// I'm purposely not using Array.includes here because it's
// strict, and because of Numeric/String mis-casting, I
// want the "includes" to be "fuzzy".
el.checked = value.some(val => checkedAttrLooseCompare(val, el.value));
} else {
el.checked = !!value;
}
}
} else if (el.tagName === 'SELECT') {
updateSelect(el, value);
} else {
if (el.value === value) return;
el.value = value;
}
} else if (attrName === 'class') {
if (Array.isArray(value)) {
const originalClasses = el.__x_original_classes || [];
el.setAttribute('class', arrayUnique(originalClasses.concat(value)).join(' '));
} else if (typeof value === 'object') {
// Sorting the keys / class names by their boolean value will ensure that
// anything that evaluates to `false` and needs to remove classes is run first.
const keysSortedByBooleanValue = Object.keys(value).sort((a, b) => value[a] - value[b]);
keysSortedByBooleanValue.forEach(classNames => {
if (value[classNames]) {
convertClassStringToArray(classNames).forEach(className => el.classList.add(className));
} else {
convertClassStringToArray(classNames).forEach(className => el.classList.remove(className));
}
});
} else {
const originalClasses = el.__x_original_classes || [];
const newClasses = value ? convertClassStringToArray(value) : [];
el.setAttribute('class', arrayUnique(originalClasses.concat(newClasses)).join(' '));
}
} else {
attrName = modifiers.includes('camel') ? camelCase(attrName) : attrName; // If an attribute's bound value is null, undefined or false, remove the attribute
if ([null, undefined, false].includes(value)) {
el.removeAttribute(attrName);
} else {
isBooleanAttr(attrName) ? setIfChanged(el, attrName, attrName) : setIfChanged(el, attrName, value);
}
}
}
function setIfChanged(el, attrName, value) {
if (el.getAttribute(attrName) != value) {
el.setAttribute(attrName, value);
}
}
function updateSelect(el, value) {
const arrayWrappedValue = [].concat(value).map(value => {
return value + '';
});
Array.from(el.options).forEach(option => {
option.selected = arrayWrappedValue.includes(option.value || option.text);
});
}
function handleTextDirective(el, output, expression) {
// If nested model key is undefined, set the default value to empty string.
if (output === undefined && expression.match(/\./)) {
output = '';
}
el.textContent = output;
}
function handleHtmlDirective(component, el, expression, extraVars) {
el.innerHTML = component.evaluateReturnExpression(el, expression, extraVars);
}
function handleShowDirective(component, el, value, modifiers, initialUpdate = false) {
const hide = () => {
el.style.display = 'none';
el.__x_is_shown = false;
};
const show = () => {
if (el.style.length === 1 && el.style.display === 'none') {
el.removeAttribute('style');
} else {
el.style.removeProperty('display');
}
el.__x_is_shown = true;
};
if (initialUpdate === true) {
if (value) {
show();
} else {
hide();
}
return;
}
const handle = (resolve, reject) => {
if (value) {
if (el.style.display === 'none' || el.__x_transition) {
transitionIn(el, () => {
show();
}, reject, component);
}
resolve(() => {});
} else {
if (el.style.display !== 'none') {
transitionOut(el, () => {
resolve(() => {
hide();
});
}, reject, component);
} else {
resolve(() => {});
}
}
}; // The working of x-show is a bit complex because we need to
// wait for any child transitions to finish before hiding
// some element. Also, this has to be done recursively.
// If x-show.immediate, foregoe the waiting.
if (modifiers.includes('immediate')) {
handle(finish => finish(), () => {});
return;
} // x-show is encountered during a DOM tree walk. If an element
// we encounter is NOT a child of another x-show element we
// can execute the previous x-show stack (if one exists).
if (component.showDirectiveLastElement && !component.showDirectiveLastElement.contains(el)) {
component.executeAndClearRemainingShowDirectiveStack();
}
component.showDirectiveStack.push(handle);
component.showDirectiveLastElement = el;
}
function handleIfDirective(component, el, expressionResult, initialUpdate, extraVars) {
warnIfMalformedTemplate(el, 'x-if');
const elementHasAlreadyBeenAdded = el.nextElementSibling && el.nextElementSibling.__x_inserted_me === true;
if (expressionResult && (!elementHasAlreadyBeenAdded || el.__x_transition)) {
const clone = document.importNode(el.content, true);
el.parentElement.insertBefore(clone, el.nextElementSibling);
transitionIn(el.nextElementSibling, () => {}, () => {}, component, initialUpdate);
component.initializeElements(el.nextElementSibling, extraVars);
el.nextElementSibling.__x_inserted_me = true;
} else if (!expressionResult && elementHasAlreadyBeenAdded) {
transitionOut(el.nextElementSibling, () => {
el.nextElementSibling.remove();
}, () => {}, component, initialUpdate);
}
}
function registerListener(component, el, event, modifiers, expression, extraVars = {}) {
const options = {
passive: modifiers.includes('passive')
};
if (modifiers.includes('camel')) {
event = camelCase(event);
}
if (modifiers.includes('away')) {
let handler = e => {
// Don't do anything if the click came from the element or within it.
if (el.contains(e.target)) return; // Don't do anything if this element isn't currently visible.
if (el.offsetWidth < 1 && el.offsetHeight < 1) return; // Now that we are sure the element is visible, AND the click
// is from outside it, let's run the expression.
runListenerHandler(component, expression, e, extraVars);
if (modifiers.includes('once')) {
document.removeEventListener(event, handler, options);
}
}; // Listen for this event at the root level.
document.addEventListener(event, handler, options);
} else {
let listenerTarget = modifiers.includes('window') ? window : modifiers.includes('document') ? document : el;
let handler = e => {
// Remove this global event handler if the element that declared it
// has been removed. It's now stale.
if (listenerTarget === window || listenerTarget === document) {
if (!document.body.contains(el)) {
listenerTarget.removeEventListener(event, handler, options);
return;
}
}
if (isKeyEvent(event)) {
if (isListeningForASpecificKeyThatHasntBeenPressed(e, modifiers)) {
return;
}
}
if (modifiers.includes('prevent')) e.preventDefault();
if (modifiers.includes('stop')) e.stopPropagation(); // If the .self modifier isn't present, or if it is present and
// the target element matches the element we are registering the
// event on, run the handler
if (!modifiers.includes('self') || e.target === el) {
const returnValue = runListenerHandler(component, expression, e, extraVars);
returnValue.then(value => {
if (value === false) {
e.preventDefault();
} else {
if (modifiers.includes('once')) {
listenerTarget.removeEventListener(event, handler, options);
}
}
});
}
};
if (modifiers.includes('debounce')) {
let nextModifier = modifiers[modifiers.indexOf('debounce') + 1] || 'invalid-wait';
let wait = isNumeric(nextModifier.split('ms')[0]) ? Number(nextModifier.split('ms')[0]) : 250;
handler = debounce(handler, wait);
}
listenerTarget.addEventListener(event, handler, options);
}
}
function runListenerHandler(component, expression, e, extraVars) {
return component.evaluateCommandExpression(e.target, expression, () => {
return _objectSpread2(_objectSpread2({}, extraVars()), {}, {
'$event': e
});
});
}
function isKeyEvent(event) {
return ['keydown', 'keyup'].includes(event);
}
function isListeningForASpecificKeyThatHasntBeenPressed(e, modifiers) {
let keyModifiers = modifiers.filter(i => {
return !['window', 'document', 'prevent', 'stop'].includes(i);
});
if (keyModifiers.includes('debounce')) {
let debounceIndex = keyModifiers.indexOf('debounce');
keyModifiers.splice(debounceIndex, isNumeric((keyModifiers[debounceIndex + 1] || 'invalid-wait').split('ms')[0]) ? 2 : 1);
} // If no modifier is specified, we'll call it a press.
if (keyModifiers.length === 0) return false; // If one is passed, AND it matches the key pressed, we'll call it a press.
if (keyModifiers.length === 1 && keyModifiers[0] === keyToModifier(e.key)) return false; // The user is listening for key combinations.
const systemKeyModifiers = ['ctrl', 'shift', 'alt', 'meta', 'cmd', 'super'];
const selectedSystemKeyModifiers = systemKeyModifiers.filter(modifier => keyModifiers.includes(modifier));
keyModifiers = keyModifiers.filter(i => !selectedSystemKeyModifiers.includes(i));
if (selectedSystemKeyModifiers.length > 0) {
const activelyPressedKeyModifiers = selectedSystemKeyModifiers.filter(modifier => {
// Alias "cmd" and "super" to "meta"
if (modifier === 'cmd' || modifier === 'super') modifier = 'meta';
return e[`${modifier}Key`];
}); // If all the modifiers selected are pressed, ...
if (activelyPressedKeyModifiers.length === selectedSystemKeyModifiers.length) {
// AND the remaining key is pressed as well. It's a press.
if (keyModifiers[0] === keyToModifier(e.key)) return false;
}
} // We'll call it NOT a valid keypress.
return true;
}
function keyToModifier(key) {
switch (key) {
case '/':
return 'slash';
case ' ':
case 'Spacebar':
return 'space';
default:
return key && kebabCase(key);
}
}
function registerModelListener(component, el, modifiers, expression, extraVars) {
// If the element we are binding to is a select, a radio, or checkbox
// we'll listen for the change event instead of the "input" event.
var event = el.tagName.toLowerCase() === 'select' || ['checkbox', 'radio'].includes(el.type) || modifiers.includes('lazy') ? 'change' : 'input';
const listenerExpression = `${expression} = rightSideOfExpression($event, ${expression})`;
registerListener(component, el, event, modifiers, listenerExpression, () => {
return _objectSpread2(_objectSpread2({}, extraVars()), {}, {
rightSideOfExpression: generateModelAssignmentFunction(el, modifiers, expression)
});
});
}
function generateModelAssignmentFunction(el, modifiers, expression) {
if (el.type === 'radio') {
// Radio buttons only work properly when they share a name attribute.
// People might assume we take care of that for them, because
// they already set a shared "x-model" attribute.
if (!el.hasAttribute('name')) el.setAttribute('name', expression);
}
return (event, currentValue) => {
// Check for event.detail due to an issue where IE11 handles other events as a CustomEvent.
if (event instanceof CustomEvent && event.detail) {
return event.detail;
} else if (el.type === 'checkbox') {
// If the data we are binding to is an array, toggle its value inside the array.
if (Array.isArray(currentValue)) {
const newValue = modifiers.includes('number') ? safeParseNumber(event.target.value) : event.target.value;
return event.target.checked ? currentValue.concat([newValue]) : currentValue.filter(el => !checkedAttrLooseCompare(el, newValue));
} else {
return event.target.checked;
}
} else if (el.tagName.toLowerCase() === 'select' && el.multiple) {
return modifiers.includes('number') ? Array.from(event.target.selectedOptions).map(option => {
const rawValue = option.value || option.text;
return safeParseNumber(rawValue);
}) : Array.from(event.target.selectedOptions).map(option => {
return option.value || option.text;
});
} else {
const rawValue = event.target.value;
return modifiers.includes('number') ? safeParseNumber(rawValue) : modifiers.includes('trim') ? rawValue.trim() : rawValue;
}
};
}
function safeParseNumber(rawValue) {
const number = rawValue ? parseFloat(rawValue) : null;
return isNumeric(number) ? number : rawValue;
}
/**
* Copyright (C) 2017 salesforce.com, inc.
*/
const { isArray } = Array;
const { getPrototypeOf, create: ObjectCreate, defineProperty: ObjectDefineProperty, defineProperties: ObjectDefineProperties, isExtensible, getOwnPropertyDescriptor, getOwnPropertyNames, getOwnPropertySymbols, preventExtensions, hasOwnProperty, } = Object;
const { push: ArrayPush, concat: ArrayConcat, map: ArrayMap, } = Array.prototype;
function isUndefined(obj) {
return obj === undefined;
}
function isFunction(obj) {
return typeof obj === 'function';
}
function isObject(obj) {
return typeof obj === 'object';
}
const proxyToValueMap = new WeakMap();
function registerProxy(proxy, value) {
proxyToValueMap.set(proxy, value);
}
const unwrap = (replicaOrAny) => proxyToValueMap.get(replicaOrAny) || replicaOrAny;
function wrapValue(membrane, value) {
return membrane.valueIsObservable(value) ? membrane.getProxy(value) : value;
}
/**
* Unwrap property descriptors will set value on original descriptor
* We only need to unwrap if value is specified
* @param descriptor external descrpitor provided to define new property on original value
*/
function unwrapDescriptor(descriptor) {
if (hasOwnProperty.call(descriptor, 'value')) {
descriptor.value = unwrap(descriptor.value);
}
return descriptor;
}
function lockShadowTarget(membrane, shadowTarget, originalTarget) {
const targetKeys = ArrayConcat.call(getOwnPropertyNames(originalTarget), getOwnPropertySymbols(originalTarget));
targetKeys.forEach((key) => {
let descriptor = getOwnPropertyDescriptor(originalTarget, key);
// We do not need to wrap the descriptor if configurable
// Because we can deal with wrapping it when user goes through
// Get own property descriptor. There is also a chance that this descriptor
// could change sometime in the future, so we can defer wrapping
// until we need to
if (!descriptor.configurable) {
descriptor = wrapDescriptor(membrane, descriptor, wrapValue);
}
ObjectDefineProperty(shadowTarget, key, descriptor);
});
preventExtensions(shadowTarget);
}
class ReactiveProxyHandler {
constructor(membrane, value) {
this.originalTarget = value;
this.membrane = membrane;
}
get(shadowTarget, key) {
const { originalTarget, membrane } = this;
const value = originalTarget[key];
const { valueObserved } = membrane;
valueObserved(originalTarget, key);
return membrane.getProxy(value);
}
set(shadowTarget, key, value) {
const { originalTarget, membrane: { valueMutated } } = this;
const oldValue = originalTarget[key];
if (oldValue !== value) {
originalTarget[key] = value;
valueMutated(originalTarget, key);
}
else if (key === 'length' && isArray(originalTarget)) {
// fix for issue #236: push will add the new index, and by the time length
// is updated, the internal length is already equal to the new length value
// therefore, the oldValue is equal to the value. This is the forking logic
// to support this use case.
valueMutated(originalTarget, key);
}
return true;
}
deleteProperty(shadowTarget, key) {
const { originalTarget, membrane: { valueMutated } } = this;
delete originalTarget[key];
valueMutated(originalTarget, key);
return true;
}
apply(shadowTarget, thisArg, argArray) {
/* No op */
}
construct(target, argArray, newTarget) {
/* No op */
}
has(shadowTarget, key) {
const { originalTarget, membrane: { valueObserved } } = this;
valueObserved(originalTarget, key);
return key in originalTarget;
}
ownKeys(shadowTarget) {
const { originalTarget } = this;
return ArrayConcat.call(getOwnPropertyNames(originalTarget), getOwnPropertySymbols(originalTarget));
}
isExtensible(shadowTarget) {
const shadowIsExtensible = isExtensible(shadowTarget);
if (!shadowIsExtensible) {
return shadowIsExtensible;
}
const { originalTarget, membrane } = this;
const targetIsExtensible = isExtensible(originalTarget);
if (!targetIsExtensible) {
lockShadowTarget(membrane, shadowTarget, originalTarget);
}
return targetIsExtensible;
}
setPrototypeOf(shadowTarget, prototype) {
}
getPrototypeOf(shadowTarget) {
const { originalTarget } = this;
return getPrototypeOf(originalTarget);
}
getOwnPropertyDescriptor(shadowTarget, key) {
const { originalTarget, membrane } = this;
const { valueObserved } = this.membrane;
// keys looked up via hasOwnProperty need to be reactive
valueObserved(originalTarget, key);
let desc = getOwnPropertyDescriptor(originalTarget, key);
if (isUndefined(desc)) {
return desc;
}
const shadowDescriptor = getOwnPropertyDescriptor(shadowTarget, key);
if (!isUndefined(shadowDescriptor)) {
return shadowDescriptor;
}
// Note: by accessing the descriptor, the key is marked as observed
// but access to the value, setter or getter (if available) cannot observe
// mutations, just like regular methods, in which case we just do nothing.
desc = wrapDescriptor(membrane, desc, wrapValue);
if (!desc.configurable) {
// If descriptor from original target is not configurable,
// We must copy the wrapped descriptor over to the shadow target.
// Otherwise, proxy will throw an invariant error.
// This is our last chance to lock the value.
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Proxy/handler/getOwnPropertyDescriptor#Invariants
ObjectDefineProperty(shadowTarget, key, desc);
}
return desc;
}
preventExtensions(shadowTarget) {
const { originalTarget, membrane } = this;
lockShadowTarget(membrane, shadowTarget, originalTarget);
preventExtensions(originalTarget);
return true;
}
defineProperty(shadowTarget, key, descriptor) {
const { originalTarget, membrane } = this;
const { valueMutated } = membrane;
const { configurable } = descriptor;
// We have to check for value in descriptor
// because Object.freeze(proxy) calls this method
// with only { configurable: false, writeable: false }
// Additionally, method will only be called with writeable:false
// if the descriptor has a value, as opposed to getter/setter
// So we can just check if writable is present and then see if
// value is present. This eliminates getter and setter descriptors
if (hasOwnProperty.call(descriptor, 'writable') && !hasOwnProperty.call(descriptor, 'value')) {
const originalDescriptor = getOwnPropertyDescriptor(originalTarget, key);
descriptor.value = originalDescriptor.value;
}
ObjectDefineProperty(originalTarget, key, unwrapDescriptor(descriptor));
if (configurable === false) {
ObjectDefineProperty(shadowTarget, key, wrapDescriptor(membrane, descriptor, wrapValue));
}
valueMutated(originalTarget, key);
return true;
}
}
function wrapReadOnlyValue(membrane, value) {
return membrane.valueIsObservable(value) ? membrane.getReadOnlyProxy(value) : value;
}
class ReadOnlyHandler {
constructor(membrane, value) {
this.originalTarget = value;
this.membrane = membrane;
}
get(shadowTarget, key) {
const { membrane, originalTarget } = this;
const value = originalTarget[key];
const { valueObserved } = membrane;
valueObserved(originalTarget, key);
return membrane.getReadOnlyProxy(value);
}
set(shadowTarget, key, value) {
return false;
}
deleteProperty(shadowTarget, key) {
return false;
}
apply(shadowTarget, thisArg, argArray) {
/* No op */
}
construct(target, argArray, newTarget) {
/* No op */
}
has(shadowTarget, key) {
const { originalTarget, membrane: { valueObserved } } = this;
valueObserved(originalTarget, key);
return key in originalTarget;
}
ownKeys(shadowTarget) {
const { originalTarget } = this;
return ArrayConcat.call(getOwnPropertyNames(originalTarget), getOwnPropertySymbols(originalTarget));
}
setPrototypeOf(shadowTarget, prototype) {
}
getOwnPropertyDescriptor(shadowTarget, key) {
const { originalTarget, membrane } = this;
const { valueObserved } = membrane;
// keys looked up via hasOwnProperty need to be reactive
valueObserved(originalTarget, key);
let desc = getOwnPropertyDescriptor(originalTarget, key);
if (isUndefined(desc)) {
return desc;
}
const shadowDescriptor = getOwnPropertyDescriptor(shadowTarget, key);
if (!isUndefined(shadowDescriptor)) {
return shadowDescriptor;
}
// Note: by accessing the descriptor, the key is marked as observed
// but access to the value or getter (if available) cannot be observed,
// just like regular methods, in which case we just do nothing.
desc = wrapDescriptor(membrane, desc, wrapReadOnlyValue);
if (hasOwnProperty.call(desc, 'set')) {
desc.set = undefined; // readOnly membrane does not allow setters
}
if (!desc.configurable) {
// If descriptor from original target is not configurable,
// We must copy the wrapped descriptor over to the shadow target.
// Otherwise, proxy will throw an invariant error.
// This is our last chance to lock the value.
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Proxy/handler/getOwnPropertyDescriptor#Invariants
ObjectDefineProperty(shadowTarget, key, desc);
}
return desc;
}
preventExtensions(shadowTarget) {
return false;
}
defineProperty(shadowTarget, key, descriptor) {
return false;
}
}
function createShadowTarget(value) {
let shadowTarget = undefined;
if (isArray(value)) {
shadowTarget = [];
}
else if (isObject(value)) {
shadowTarget = {};
}
return shadowTarget;
}
const ObjectDotPrototype = Object.prototype;
function defaultValueIsObservable(value) {
// intentionally checking for null
if (value === null) {
return false;
}
// treat all non-object types, including undefined, as non-observable values
if (typeof value !== 'object') {
return false;
}
if (isArray(value)) {
return true;
}
const proto = getPrototypeOf(value);
return (proto === ObjectDotPrototype || proto === null || getPrototypeOf(proto) === null);
}
const defaultValueObserved = (obj, key) => {
/* do nothing */
};
const defaultValueMutated = (obj, key) => {
/* do nothing */
};
const defaultValueDistortion = (value) => value;
function wrapDescriptor(membrane, descriptor, getValue) {
const { set, get } = descriptor;
if (hasOwnProperty.call(descriptor, 'value')) {
descriptor.value = getValue(membrane, descriptor.value);
}
else {
if (!isUndefined(get)) {
descriptor.get = function () {
// invoking the original getter with the original target
return getValue(membrane, get.call(unwrap(this)));
};
}
if (!isUndefined(set)) {
descriptor.set = function (value) {
// At this point we don't have a clear indication of whether
// or not a valid mutation will occur, we don't have the key,
// and we are not sure why and how they are invoking this setter.
// Nevertheless we preserve the original semantics by invoking the
// original setter with the original target and the unwrapped value
set.call(unwrap(this), membrane.unwrapProxy(value));
};
}
}
return descriptor;
}
class ReactiveMembrane {
constructor(options) {
this.valueDistortion = defaultValueDistortion;
this.valueMutated = defaultValueMutated;
this.valueObserved = defaultValueObserved;
this.valueIsObservable = defaultValueIsObservable;
this.objectGraph = new WeakMap();
if (!isUndefined(options)) {
const { valueDistortion, valueMutated, valueObserved, valueIsObservable } = options;
this.valueDistortion = isFunction(valueDistortion) ? valueDistortion : defaultValueDistortion;
this.valueMutated = isFunction(valueMutated) ? valueMutated : defaultValueMutated;
this.valueObserved = isFunction(valueObserved) ? valueObserved : defaultValueObserved;
this.valueIsObservable = isFunction(valueIsObservable) ? valueIsObservable : defaultValueIsObservable;
}
}
getProxy(value) {
const unwrappedValue = unwrap(value);
const distorted = this.valueDistortion(unwrappedValue);
if (this.valueIsObservable(distorted)) {
const o = this.getReactiveState(unwrappedValue, distorted);
// when trying to extract the writable version of a readonly
// we return the readonly.
return o.readOnly === value ? value : o.reactive;
}
return distorted;
}
getReadOnlyProxy(value) {
value = unwrap(value);
const distorted = this.valueDistortion(value);
if (this.valueIsObservable(distorted)) {
return this.getReactiveState(value, distorted).readOnly;
}
return distorted;
}
unwrapProxy(p) {
return unwrap(p);
}
getReactiveState(value, distortedValue) {
const { objectGraph, } = this;
let reactiveState = objectGraph.get(distortedValue);
if (reactiveState) {
return reactiveState;
}
const membrane = this;
reactiveState = {
get reactive() {
const reactiveHandler = new ReactiveProxyHandler(membrane, distortedValue);
// caching the reactive proxy after the first time it is accessed
const proxy = new Proxy(createShadowTarget(distortedValue), reactiveHandler);
registerProxy(proxy, value);
ObjectDefineProperty(this, 'reactive', { value: proxy });
return proxy;
},
get readOnly() {
const readOnlyHandler = new ReadOnlyHandler(membrane, distortedValue);
// caching the readOnly proxy after the first time it is accessed
const proxy = new Proxy(createShadowTarget(distortedValue), readOnlyHandler);
registerProxy(proxy, value);
ObjectDefineProperty(this, 'readOnly', { value: proxy });
return proxy;
}
};
objectGraph.set(distortedValue, reactiveState);
return reactiveState;
}
}
/** version: 0.26.0 */
function wrap(data, mutationCallback) {
let membrane = new ReactiveMembrane({
valueMutated(target, key) {
mutationCallback(target, key);
}
});
return {
data: membrane.getProxy(data),
membrane: membrane
};
}
function unwrap$1(membrane, observable) {
let unwrappedData = membrane.unwrapProxy(observable);
let copy = {};
Object.keys(unwrappedData).forEach(key => {
if (['$el', '$refs', '$nextTick', '$watch'].includes(key)) return;
copy[key] = unwrappedData[key];
});
return copy;
}
class Component {
constructor(el, componentForClone = null) {
this.$el = el;
const dataAttr = this.$el.getAttribute('x-data');
const dataExpression = dataAttr === '' ? '{}' : dataAttr;
const initExpression = this.$el.getAttribute('x-init');
let dataExtras = {
$el: this.$el
};
let canonicalComponentElementReference = componentForClone ? componentForClone.$el : this.$el;
Object.entries(Alpine.magicProperties).forEach(([name, callback]) => {
Object.defineProperty(dataExtras, `$${name}`, {
get: function get() {
return callback(canonicalComponentElementReference);
}
});
});
this.unobservedData = componentForClone ? componentForClone.getUnobservedData() : saferEval(el, dataExpression, dataExtras);
// Construct a Proxy-based observable. This will be used to handle reactivity.
let {
membrane,
data
} = this.wrapDataInObservable(this.unobservedData);
this.$data = data;
this.membrane = membrane; // After making user-supplied data methods reactive, we can now add
// our magic properties to the original data for access.
this.unobservedData.$el = this.$el;
this.unobservedData.$refs = this.getRefsProxy();
this.nextTickStack = [];
this.unobservedData.$nextTick = callback => {
this.nextTickStack.push(callback);
};
this.watchers = {};
this.unobservedData.$watch = (property, callback) => {
if (!this.watchers[property]) this.watchers[property] = [];
this.watchers[property].push(callback);
};
/* MODERN-ONLY:START */
// We remove this piece of code from the legacy build.
// In IE11, we have already defined our helpers at this point.
// Register custom magic properties.
Object.entries(Alpine.magicProperties).forEach(([name, callback]) => {
Object.defineProperty(this.unobservedData, `$${name}`, {
get: function get() {
return callback(canonicalComponentElementReference, this.$el);
}
});
});
/* MODERN-ONLY:END */
this.showDirectiveStack = [];
this.showDirectiveLastElement;
componentForClone || Alpine.onBeforeComponentInitializeds.forEach(callback => callback(this));
var initReturnedCallback; // If x-init is present AND we aren't cloning (skip x-init on clone)
if (initExpression && !componentForClone) {
// We want to allow data manipulation, but not trigger DOM updates just yet.
// We haven't even initialized the elements with their Alpine bindings. I mean c'mon.
this.pauseReactivity = true;
initReturnedCallback = this.evaluateReturnExpression(this.$el, initExpression);
this.pauseReactivity = false;
} // Register all our listeners and set all our attribute bindings.
this.initializeElements(this.$el); // Use mutation observer to detect new elements being added within this component at run-time.
// Alpine's just so darn flexible amirite?
this.listenForNewElementsToInitialize();
if (typeof initReturnedCallback === 'function') {
// Run the callback returned from the "x-init" hook to allow the user to do stuff after
// Alpine's got it's grubby little paws all over everything.
initReturnedCallback.call(this.$data);
}
componentForClone || setTimeout(() => {
Alpine.onComponentInitializeds.forEach(callback => callback(this));
}, 0);
}
getUnobservedData() {
return unwrap$1(this.membrane, this.$data);
}
wrapDataInObservable(data) {
var self = this;
let updateDom = debounce(function () {
self.updateElements(self.$el);
}, 0);
return wrap(data, (target, key) => {
if (self.watchers[key]) {
// If there's a watcher for this specific key, run it.
self.watchers[key].forEach(callback => callback(target[key]));
} else if (Array.isArray(target)) {
// Arrays are special cases, if any of the items change, we consider the array as mutated.
Object.keys(self.watchers).forEach(fullDotNotationKey => {
let dotNotationParts = fullDotNotationKey.split('.'); // Ignore length mutations since they would result in duplicate calls.
// For example, when calling push, we would get a mutation for the item's key
// and a second mutation for the length property.
if (key === 'length') return;
dotNotationParts.reduce((comparisonData, part) => {
if (Object.is(target, comparisonData[part])) {
self.watchers[fullDotNotationKey].forEach(callback => callback(target));
}
return comparisonData[part];
}, self.unobservedData);
});
} else {
// Let's walk through the watchers with "dot-notation" (foo.bar) and see
// if this mutation fits any of them.
Object.keys(self.watchers).filter(i => i.includes('.')).forEach(fullDotNotationKey => {
let dotNotationParts = fullDotNotationKey.split('.'); // If this dot-notation watcher's last "part" doesn't match the current
// key, then skip it early for performance reasons.
if (key !== dotNotationParts[dotNotationParts.length - 1]) return; // Now, walk through the dot-notation "parts" recursively to find
// a match, and call the watcher if one's found.
dotNotationParts.reduce((comparisonData, part) => {
if (Object.is(target, comparisonData)) {
// Run the watchers.
self.watchers[fullDotNotationKey].forEach(callback => callback(target[key]));
}
return comparisonData[part];
}, self.unobservedData);
});
} // Don't react to data changes for cases like the `x-created` hook.
if (self.pauseReactivity) return;
updateDom();
});
}
walkAndSkipNestedComponents(el, callback, initializeComponentCallback = () => {}) {
walk(el, el => {
// We've hit a component.
if (el.hasAttribute('x-data')) {
// If it's not the current one.
if (!el.isSameNode(this.$el)) {
// Initialize it if it's not.
if (!el.__x) initializeComponentCallback(el); // Now we'll let that sub-component deal with itself.
return false;
}
}
return callback(el);
});
}
initializeElements(rootEl, extraVars = () => {}) {
this.walkAndSkipNestedComponents(rootEl, el => {
// Don't touch spawns from for loop
if (el.__x_for_key !== undefined) return false; // Don't touch spawns from if directives
if (el.__x_inserted_me !== undefined) return false;
this.initializeElement(el, extraVars);
}, el => {
el.__x = new Component(el);
});
this.executeAndClearRemainingShowDirectiveStack();
this.executeAndClearNextTickStack(rootEl);
}
initializeElement(el, extraVars) {
// To support class attribute merging, we have to know what the element's
// original class attribute looked like for reference.
if (el.hasAttribute('class') && getXAttrs(el, this).length > 0) {
el.__x_original_classes = convertClassStringToArray(el.getAttribute('class'));
}
this.registerListeners(el, extraVars);
this.resolveBoundAttributes(el, true, extraVars);
}
updateElements(rootEl, extraVars = () => {}) {
this.walkAndSkipNestedComponents(rootEl, el => {
// Don't touch spawns from for loop (and check if the root is actually a for loop in a parent, don't skip it.)
if (el.__x_for_key !== undefined && !el.isSameNode(this.$el)) return false;
this.updateElement(el, extraVars);
}, el => {
el.__x = new Component(el);
});
this.executeAndClearRemainingShowDirectiveStack();
this.executeAndClearNextTickStack(rootEl);
}
executeAndClearNextTickStack(el) {
// Skip spawns from alpine directives
if (el === this.$el && this.nextTickStack.length > 0) {
// We run the tick stack after the next frame to allow any
// running transitions to pass the initial show stage.
requestAnimationFrame(() => {
while (this.nextTickStack.length > 0) {
this.nextTickStack.shift()();
}
});
}
}
executeAndClearRemainingShowDirectiveStack() {
// The goal here is to start all the x-show transitions
// and build a nested promise chain so that elements
// only hide when the children are finished hiding.
this.showDirectiveStack.reverse().map(handler => {
return new Promise((resolve, reject) => {
handler(resolve, reject);
});
}).reduce((promiseChain, promise) => {
return promiseChain.then(() => {
return promise.then(finishElement => {
finishElement();
});
});
}, Promise.resolve(() => {})).catch(e => {
if (e !== TRANSITION_CANCELLED) throw e;
}); // We've processed the handler stack. let's clear it.
this.showDirectiveStack = [];
this.showDirectiveLastElement = undefined;
}
updateElement(el, extraVars) {
this.resolveBoundAttributes(el, false, extraVars);
}
registerListeners(el, extraVars) {
getXAttrs(el, this).forEach(({
type,
value,
modifiers,
expression
}) => {
switch (type) {
case 'on':
registerListener(this, el, value, modifiers, expression, extraVars);
break;
case 'model':
registerModelListener(this, el, modifiers, expression, extraVars);
break;
}
});
}
resolveBoundAttributes(el, initialUpdate = false, extraVars) {
let attrs = getXAttrs(el, this);
attrs.forEach(({
type,
value,
modifiers,
expression
}) => {
switch (type) {
case 'model':
handleAttributeBindingDirective(this, el, 'value', expression, extraVars, type, modifiers);
break;
case 'bind':
// The :key binding on an x-for is special, ignore it.
if (el.tagName.toLowerCase() === 'template' && value === 'key') return;
handleAttributeBindingDirective(this, el, value, expression, extraVars, type, modifiers);
break;
case 'text':
var output = this.evaluateReturnExpression(el, expression, extraVars);
handleTextDirective(el, output, expression);
break;
case 'html':
handleHtmlDirective(this, el, expression, extraVars);
break;
case 'show':
var output = this.evaluateReturnExpression(el, expression, extraVars);
handleShowDirective(this, el, output, modifiers, initialUpdate);
break;
case 'if':
// If this element also has x-for on it, don't process x-if.
// We will let the "x-for" directive handle the "if"ing.
if (attrs.some(i => i.type === 'for')) return;
var output = this.evaluateReturnExpression(el, expression, extraVars);
handleIfDirective(this, el, output, initialUpdate, extraVars);
break;
case 'for':
handleForDirective(this, el, expression, initialUpdate, extraVars);
break;
case 'cloak':
el.removeAttribute('x-cloak');
break;
}
});
}
evaluateReturnExpression(el, expression, extraVars = () => {}) {
return saferEval(el, expression, this.$data, _objectSpread2(_objectSpread2({}, extraVars()), {}, {
$dispatch: this.getDispatchFunction(el)
}));
}
evaluateCommandExpression(el, expression, extraVars = () => {}) {
return saferEvalNoReturn(el, expression, this.$data, _objectSpread2(_objectSpread2({}, extraVars()), {}, {
$dispatch: this.getDispatchFunction(el)
}));
}
getDispatchFunction(el) {
return (event, detail = {}) => {
el.dispatchEvent(new CustomEvent(event, {
detail,
bubbles: true
}));
};
}
listenForNewElementsToInitialize() {
const targetNode = this.$el;
const observerOptions = {
childList: true,
attributes: true,
subtree: true
};
const observer = new MutationObserver(mutations => {
for (let i = 0; i < mutations.length; i++) {
// Filter out mutations triggered from child components.
const closestParentComponent = mutations[i].target.closest('[x-data]');
if (!(closestParentComponent && closestParentComponent.isSameNode(this.$el))) continue;
if (mutations[i].type === 'attributes' && mutations[i].attributeName === 'x-data') {
const xAttr = mutations[i].target.getAttribute('x-data') || '{}';
const rawData = saferEval(this.$el, xAttr, {
$el: this.$el
});
Object.keys(rawData).forEach(key => {
if (this.$data[key] !== rawData[key]) {
this.$data[key] = rawData[key];
}
});
}
if (mutations[i].addedNodes.length > 0) {
mutations[i].addedNodes.forEach(node => {
if (node.nodeType !== 1 || node.__x_inserted_me) return;
if (node.matches('[x-data]') && !node.__x) {
node.__x = new Component(node);
return;
}
this.initializeElements(node);
});
}
}
});
observer.observe(targetNode, observerOptions);
}
getRefsProxy() {
var self = this;
var refObj = {};
// One of the goals of this is to not hold elements in memory, but rather re-evaluate
// the DOM when the system needs something from it. This way, the framework is flexible and
// friendly to outside DOM changes from libraries like Vue/Livewire.
// For this reason, I'm using an "on-demand" proxy to fake a "$refs" object.
return new Proxy(refObj, {
get(object, property) {
if (property === '$isAlpineProxy') return true;
var ref; // We can't just query the DOM because it's hard to filter out refs in
// nested components.
self.walkAndSkipNestedComponents(self.$el, el => {
if (el.hasAttribute('x-ref') && el.getAttribute('x-ref') === property) {
ref = el;
}
});
return ref;
}
});
}
}
const Alpine = {
version: "2.8.0",
pauseMutationObserver: false,
magicProperties: {},
onComponentInitializeds: [],
onBeforeComponentInitializeds: [],
ignoreFocusedForValueBinding: false,
start: async function start() {
if (!isTesting()) {
await domReady();
}
this.discoverComponents(el => {
this.initializeComponent(el);
}); // It's easier and more performant to just support Turbolinks than listen
// to MutationObserver mutations at the document level.
document.addEventListener("turbolinks:load", () => {
this.discoverUninitializedComponents(el => {
this.initializeComponent(el);
});
});
this.listenForNewUninitializedComponentsAtRunTime();
},
discoverComponents: function discoverComponents(callback) {
const rootEls = document.querySelectorAll('[x-data]');
rootEls.forEach(rootEl => {
callback(rootEl);
});
},
discoverUninitializedComponents: function discoverUninitializedComponents(callback, el = null) {
const rootEls = (el || document).querySelectorAll('[x-data]');
Array.from(rootEls).filter(el => el.__x === undefined).forEach(rootEl => {
callback(rootEl);
});
},
listenForNewUninitializedComponentsAtRunTime: function listenForNewUninitializedComponentsAtRunTime() {
const targetNode = document.querySelector('body');
const observerOptions = {
childList: true,
attributes: true,
subtree: true
};
const observer = new MutationObserver(mutations => {
if (this.pauseMutationObserver) return;
for (let i = 0; i < mutations.length; i++) {
if (mutations[i].addedNodes.length > 0) {
mutations[i].addedNodes.forEach(node => {
// Discard non-element nodes (like line-breaks)
if (node.nodeType !== 1) return; // Discard any changes happening within an existing component.
// They will take care of themselves.
if (node.parentElement && node.parentElement.closest('[x-data]')) return;
this.discoverUninitializedComponents(el => {
this.initializeComponent(el);
}, node.parentElement);
});
}
}
});
observer.observe(targetNode, observerOptions);
},
initializeComponent: function initializeComponent(el) {
if (!el.__x) {
// Wrap in a try/catch so that we don't prevent other components
// from initializing when one component contains an error.
try {
el.__x = new Component(el);
} catch (error) {
setTimeout(() => {
throw error;
}, 0);
}
}
},
clone: function clone(component, newEl) {
if (!newEl.__x) {
newEl.__x = new Component(newEl, component);
}
},
addMagicProperty: function addMagicProperty(name, callback) {
this.magicProperties[name] = callback;
},
onComponentInitialized: function onComponentInitialized(callback) {
this.onComponentInitializeds.push(callback);
},
onBeforeComponentInitialized: function onBeforeComponentInitialized(callback) {
this.onBeforeComponentInitializeds.push(callback);
}
};
if (!isTesting()) {
window.Alpine = Alpine;
if (window.deferLoadingAlpine) {
window.deferLoadingAlpine(function () {
window.Alpine.start();
});
} else {
window.Alpine.start();
}
}
return Alpine;
})));
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