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import * as dom from "./utils_dom.js";
import { getObjectValue } from "./shared_utils.js";
const CONFIG_DEFAULT = {
attrBind: "data-bind",
attrIf: "data-if",
attrIfIs: "data-if-is",
};
const CONFIG = Object.assign({}, CONFIG_DEFAULT, {
attrBind: "bind",
attrIf: "if",
attrIfIs: "if-is",
});
const RGX_COMPARISON = (() => {
let value = "((?:\\!*)[_a-z0-9\\.\\-\\[\\]'\"]+)";
let comparison = "((?:<|>|==|\\!=)=?)";
return new RegExp(`^(?:\\!*)\\(?${value}\\s*${comparison}\\s*${value}\\)?$`, "i");
})();
const RGXPART_BIND_FN_TEMPLATE_STRING = "template|tpl";
const RGXPART_BIND_FN_ELEMENT_STRING = "element|el";
const RGX_BIND_FN_TEMPLATE = new RegExp(`^(?:${RGXPART_BIND_FN_TEMPLATE_STRING})\\(([^\\)]+)\\)`, "i");
const RGX_BIND_FN_ELEMENT = new RegExp(`^(?:${RGXPART_BIND_FN_ELEMENT_STRING})\\(([^\\)]+)\\)`, "i");
const RGX_BIND_FN_TEMPLATE_OR_ELEMENT = new RegExp(`^(?:${RGXPART_BIND_FN_TEMPLATE_STRING}|${RGXPART_BIND_FN_ELEMENT_STRING})\\(([^\\)]+)\\)`, "i");
const RGX_BIND_FN_LENGTH = /^(?:length|len|size)\(([^\)]+)\)/i;
const RGX_BIND_FN_FORMAT = /^(?:format|fmt)\(([^\,]+),([^\)]+)\)/i;
const RGX_BIND_FN_CALL = /^([^\(]+)\(([^\)]*)\)/i;
const EMPTY_PREPROCESS_FN = (data) => data;
const RGX_BIND_DECLARATIONS = /\s*(\!*(?:[\$_a-z0-9-\.\'\"]|\?\?|\|\||\&\&|(?:(?:<|>|==|\!=)=?))+(?:\`[^\`]+\`)?(?:\([^\)]*\))?)(?::(.*?))?(\s|$)/gi;
function localAssertNotFalsy(input, errorMsg = `Input is not of type.`) {
if (input == null) {
throw new Error(errorMsg);
}
return input;
}
function cleanKey(key) {
return key.toLowerCase().trim().replace(/\s/g, "");
}
function toArray(value) {
if (Array.isArray(value)) {
return value;
}
if (value instanceof Set) {
return Array.from(value);
}
if (typeof value === "object" && typeof value.length === "number") {
return [].slice.call(value);
}
return [value];
}
function flattenArray(arr) {
return toArray(arr).reduce((acc, val) => {
return acc.concat(Array.isArray(val) ? flattenArray(val) : val);
}, []);
}
function getObjValue(lookup, obj) {
let booleanMatch = lookup.match(/^(\!+)(.+?)$/i) || [];
let booleanNots = [];
if (booleanMatch[1] && booleanMatch[2]) {
booleanNots = booleanMatch[1].split("");
lookup = booleanMatch[2];
}
let value = getObjectValue(obj, lookup);
while (booleanNots.length) {
value = !value;
booleanNots.shift();
}
return value;
}
function getPrimitiveOrObjValue(stringValue, data) {
let value;
if (stringValue == null) {
return stringValue;
}
let negate = getNegates(stringValue);
if (negate != null) {
stringValue = stringValue.replace(/^\!+/, "");
}
try {
const cleanedStringValue = stringValue.replace(/^'(.*)'$/, '"$1"');
value = JSON.parse(cleanedStringValue);
}
catch (e) {
value = getObjValue(stringValue, data);
}
value = negate !== null ? (negate === 1 ? !value : !!value) : value;
return value;
}
function getNegates(stringValue) {
let negate = null;
let negateMatches = stringValue.match(/^(\!+)(.*)/);
if (negateMatches && negateMatches.length >= 3) {
negate = negateMatches[1].length % 2;
}
return negate;
}
function getStringComparisonExpression(bindingPropName, data) {
let comparisonMatches = bindingPropName.match(RGX_COMPARISON);
if (!(comparisonMatches === null || comparisonMatches === void 0 ? void 0 : comparisonMatches.length)) {
return null;
}
let a = getPrimitiveOrObjValue(comparisonMatches[1], data);
let b = getPrimitiveOrObjValue(comparisonMatches[3], data);
let c = comparisonMatches[2];
let value = (() => {
switch (c) {
case "===":
return a === b;
case "==":
return a == b;
case "<=":
return a <= b;
case ">=":
return a >= b;
case "!==":
return a !== b;
case "!=":
return a != b;
case "<":
return a < b;
case ">":
return a > b;
default:
return undefined;
}
})();
return value;
}
function replaceTplElementWithChildren(tplEl, fragOrElOrEls) {
const els = Array.isArray(fragOrElOrEls) ? fragOrElOrEls : [fragOrElOrEls];
tplEl.replaceWith(...els);
const numOfChildren = Array.isArray(fragOrElOrEls)
? fragOrElOrEls.length
: fragOrElOrEls.childElementCount;
if (numOfChildren === 1) {
const firstChild = Array.isArray(fragOrElOrEls)
? fragOrElOrEls[0]
: fragOrElOrEls.firstElementChild;
if (firstChild instanceof Element) {
if (tplEl.className.length) {
firstChild.className += ` ${tplEl.className}`;
}
let attr = tplEl.getAttribute("data");
if (attr) {
firstChild.setAttribute("data", attr);
}
attr = tplEl.getAttribute(CONFIG.attrBind);
if (attr) {
firstChild.setAttribute(CONFIG.attrBind, attr);
}
}
}
}
function getValueForBinding(bindingPropName, context) {
console.log("getValueForBinding", bindingPropName, context);
const data = context.data;
let stringTemplate = null;
let stringTemplates = /^(.*?)\`([^\`]*)\`$/.exec(bindingPropName.trim());
if ((stringTemplates === null || stringTemplates === void 0 ? void 0 : stringTemplates.length) === 3) {
bindingPropName = stringTemplates[1];
stringTemplate = stringTemplates[2];
}
let value = null;
let hadALogicalOp = false;
const opsToValidation = new Map([
[/\s*\?\?\s*/, (v) => v != null],
[/\s*\|\|\s*/, (v) => !!v],
[/\s*\&\&\s*/, (v) => !v],
]);
for (const [op, fn] of opsToValidation.entries()) {
if (bindingPropName.match(op)) {
hadALogicalOp = true;
const bindingPropNames = bindingPropName.split(op);
for (const propName of bindingPropNames) {
value = getValueForBindingPropName(propName, context);
if (fn(value)) {
break;
}
}
break;
}
}
if (!hadALogicalOp) {
value = getValueForBindingPropName(bindingPropName, context);
}
return stringTemplate && value != null
? stringTemplate.replace(/\$\{value\}/g, String(value))
: value;
}
function getValueForBindingPropName(bindingPropName, context) {
var _a, _b, _c;
const data = context.data;
let negate = getNegates(bindingPropName);
if (negate != null) {
bindingPropName = bindingPropName.replace(/^\!+/, "");
}
let value;
RGX_COMPARISON.lastIndex = 0;
if (RGX_COMPARISON.test(bindingPropName)) {
value = getStringComparisonExpression(bindingPropName, data);
}
else if (RGX_BIND_FN_LENGTH.test(bindingPropName)) {
bindingPropName = RGX_BIND_FN_LENGTH.exec(bindingPropName)[1];
value = getPrimitiveOrObjValue(bindingPropName, data);
value = (value && value.length) || 0;
}
else if (RGX_BIND_FN_FORMAT.test(bindingPropName)) {
let matches = RGX_BIND_FN_FORMAT.exec(bindingPropName);
bindingPropName = matches[1];
value = getPrimitiveOrObjValue(bindingPropName, data);
value = matches[2].replace(/^['"]/, "").replace(/['"]$/, "").replace(/\$1/g, value);
}
else if (RGX_BIND_FN_CALL.test(bindingPropName)) {
console.log("-----");
console.log(bindingPropName);
let matches = RGX_BIND_FN_CALL.exec(bindingPropName);
const functionName = matches[1];
const maybeDataName = (_a = matches[2]) !== null && _a !== void 0 ? _a : null;
value = getPrimitiveOrObjValue(maybeDataName, data);
console.log(functionName, maybeDataName, value);
if (typeof (value === null || value === void 0 ? void 0 : value[functionName]) === "function") {
value = value[functionName](value, data, context.currentElement, context.contextElement);
}
else if (typeof (data === null || data === void 0 ? void 0 : data[functionName]) === "function") {
value = data[functionName](value, data, context.currentElement, context.contextElement);
}
else if (typeof ((_b = context.currentElement) === null || _b === void 0 ? void 0 : _b[functionName]) === "function") {
value = context.currentElement[functionName](value, data, context.currentElement, context.contextElement);
}
else if (typeof ((_c = context.contextElement) === null || _c === void 0 ? void 0 : _c[functionName]) === "function") {
value = context.contextElement[functionName](value, data, context.currentElement, context.contextElement);
}
else {
console.error(`No method named ${functionName} on data or element instance. Just calling regular value.`);
value = getPrimitiveOrObjValue(bindingPropName, data);
}
}
else {
value = getPrimitiveOrObjValue(bindingPropName, data);
}
if (value !== undefined) {
value = negate !== null ? (negate === 1 ? !value : !!value) : value;
}
return value;
}
function removeBindingAttributes(elOrEls, deep = false) {
flattenArray(elOrEls || []).forEach((el) => {
el.removeAttribute(CONFIG.attrBind);
const innerBinds = dom.queryAll(`:scope [${CONFIG.attrBind}]`, el);
const innerTplBinds = deep ? [] : dom.queryAll(`:scope [data-tpl] [${CONFIG.attrBind}]`);
innerBinds.forEach((el) => {
if (deep || !innerTplBinds.includes(el)) {
el.removeAttribute(CONFIG.attrBind);
}
});
});
}
const templateCache = {};
export function checkKey(key) {
return !!templateCache[cleanKey(key)];
}
export function register(key, htmlOrElement = null, preProcessScript) {
key = cleanKey(key);
if (templateCache[key]) {
return templateCache[key];
}
let fragment = null;
if (typeof htmlOrElement === "string") {
const frag = document.createDocumentFragment();
if (htmlOrElement.includes("<")) {
const html = htmlOrElement.trim();
const htmlParentTag = (html.startsWith("<tr") && "tbody") ||
(/^<t(body|head|foot)/i.test(html) && "table") ||
(/^<t(d|h)/i.test(html) && "tr") ||
"div";
const temp = document.createElement(htmlParentTag);
temp.innerHTML = html;
for (const child of temp.children) {
frag.appendChild(child);
}
}
else {
frag.appendChild(dom.createElement(htmlOrElement));
}
fragment = frag;
}
else if (htmlOrElement instanceof Element) {
const element = htmlOrElement;
const tag = element.nodeName.toLowerCase();
if (tag === "template" && element.content) {
fragment = element.content;
}
else {
throw Error("Non-template element not handled");
}
}
else if (!htmlOrElement) {
let element = dom.query(`template[id="${key}"],template[data-id="${key}"]`);
if (element && element.content) {
fragment = element.content;
}
else {
throw Error("Non-template element not handled");
}
}
if (fragment) {
templateCache[key] = {
fragment,
preProcessScript: preProcessScript || EMPTY_PREPROCESS_FN,
};
}
return templateCache[key] || null;
}
export function getPreProcessScript(keyOrEl) {
var _a;
if (typeof keyOrEl === "string") {
if (!templateCache[keyOrEl]) {
throw Error(`Template key does not exist ${keyOrEl}`);
}
return templateCache[keyOrEl].preProcessScript;
}
if (keyOrEl instanceof Element) {
const tpl = keyOrEl.getAttribute("data-tpl") || "";
return ((_a = templateCache[tpl]) === null || _a === void 0 ? void 0 : _a.preProcessScript) || EMPTY_PREPROCESS_FN;
}
return EMPTY_PREPROCESS_FN;
}
export function getTemplateFragment(key) {
key = cleanKey(key);
if (!checkKey(key)) {
register(key);
}
let templateData = templateCache[key];
if (templateData && templateData.fragment) {
let imported;
if (document.importNode) {
imported = document.importNode(templateData.fragment, true);
}
else {
imported = templateData.fragment.cloneNode(true);
}
imported.__templateid__ = key;
return imported;
}
else {
throw new Error("Ain't no template called " + key + " (" + typeof templateCache[key] + ")");
}
}
export function inflate(nodeOrKey, templateData = null, inflateOptions = {}) {
let node = nodeOrKey;
if (typeof node === "string") {
node = getTemplateFragment(node);
}
if (node) {
const els = dom.queryAll("[data-template], [data-templateid], [template]", node);
for (const child of els) {
let className = child.className || null;
let childTemplateId = localAssertNotFalsy(child.getAttribute("data-template") ||
child.getAttribute("data-templateid") ||
child.getAttribute("template"), "No child template id provided.");
const dataAttribute = child.getAttribute("data") || "";
const childData = (dataAttribute && getObjValue(dataAttribute, templateData)) || templateData;
const tplsInflateOptions = Object.assign({}, inflateOptions);
if (tplsInflateOptions.skipInit != null) {
tplsInflateOptions.skipInit = true;
}
let tpls = localAssertNotFalsy(inflate(childTemplateId, childData, tplsInflateOptions), `No template inflated from ${childTemplateId}.`);
tpls = !Array.isArray(tpls) ? [tpls] : tpls;
if (className) {
for (const tpl of tpls) {
tpl.classList.add(className);
}
}
if (child.nodeName.toUpperCase() === "TPL") {
replaceTplElementWithChildren(child, tpls);
}
else {
child.append(...tpls);
}
child.remove();
}
let children = [];
for (const child of node.children) {
let tplAttributes = (child.getAttribute("data-tpl") || "").split(" ");
if (!tplAttributes.includes(node.__templateid__)) {
tplAttributes.push(node.__templateid__);
}
child.setAttribute("data-tpl", tplAttributes.join(" ").trim());
children.push(child);
}
let childOrChildren = children.length === 1 ? children[0] : children;
if (!inflateOptions.skipInit) {
init(childOrChildren, templateData, inflateOptions.bindOptions);
}
return childOrChildren;
}
return null;
}
export function inflateSingle(nodeOrKey, scriptData = null, bindOptions = {}) {
const inflated = localAssertNotFalsy(inflate(nodeOrKey, scriptData, bindOptions));
return Array.isArray(inflated) ? inflated[0] : inflated;
}
export function inflateOnce(nodeOrKey, templateData = null, inflateOptions = {}) {
let children = inflate(nodeOrKey, templateData, inflateOptions);
children && removeBindingAttributes(children, false);
return children;
}
export function inflateSingleOnce(nodeOrKey, scriptData = null, bindOptions = {}) {
const inflated = inflate(nodeOrKey, scriptData, bindOptions) || [];
removeBindingAttributes(inflated, false);
return Array.isArray(inflated) ? inflated[0] : inflated;
}
export function init(els, data, bindOptions = {}) {
(!els ? [] : els instanceof Element ? [els] : els).forEach((el) => {
const dataTplAttr = el.getAttribute("data-tpl");
if (dataTplAttr) {
const tpls = dataTplAttr.split(" ");
tpls.forEach((tpl) => {
const dataAttribute = el.getAttribute("data") || "";
const childData = (dataAttribute && getObjValue(dataAttribute, data)) || data;
bind(el, childData, bindOptions);
});
}
else {
bind(el, data, bindOptions);
}
});
}
export function bind(elOrEls, data = {}, bindOptions = {}) {
var _a;
if (elOrEls instanceof HTMLElement) {
data = getPreProcessScript(elOrEls)({ ...data });
}
if (typeof data !== "object") {
data = { value: data };
if (elOrEls instanceof HTMLElement &&
elOrEls.children.length === 0 &&
!elOrEls.getAttribute(CONFIG.attrBind)) {
dom.setAttributes(elOrEls, { [CONFIG.attrBind]: "value" });
}
}
let passedEls = !Array.isArray(elOrEls) ? [elOrEls] : elOrEls;
for (const el of passedEls) {
const conditionEls = toArray(dom.queryAll(`[${CONFIG.attrIf}]`, el));
const contextElement = (_a = bindOptions.contextElement) !== null && _a !== void 0 ? _a : (el instanceof ShadowRoot ? el.host : el);
for (const conditionEl of conditionEls) {
getValueForBindingPropName;
let isTrue = getValueForBinding(conditionEl.getAttribute(CONFIG.attrIf), {
data,
contextElement: contextElement,
currentElement: conditionEl,
});
conditionEl.setAttribute(CONFIG.attrIfIs, String(!!isTrue));
}
let toBindEls = toArray(dom.queryAll(`:not([${CONFIG.attrIfIs}="false"]) [${CONFIG.attrBind}]:not([data-tpl]):not([${CONFIG.attrIfIs}="false"])`, el));
if (el instanceof HTMLElement && el.getAttribute(CONFIG.attrBind)) {
toBindEls.unshift(el);
}
if (toBindEls.length) {
let innerBindsElements = dom.queryAll(`:scope [data-tpl] [${CONFIG.attrBind}], :scope [data-autobind="false"] [${CONFIG.attrBind}]`, el);
toBindEls = toBindEls.filter((maybeBind) => !innerBindsElements.includes(maybeBind));
toBindEls.forEach((child) => {
RGX_BIND_DECLARATIONS.lastIndex = 0;
let bindings = [];
let bindingMatch;
while ((bindingMatch = RGX_BIND_DECLARATIONS.exec(child.getAttribute(CONFIG.attrBind).replace(/\s+/, " ").trim())) !== null) {
bindings.push([bindingMatch[1], bindingMatch[2]]);
}
bindings.forEach((bindings) => {
let bindingDataProperty = localAssertNotFalsy(bindings.shift());
let bindingFields = ((bindings.length && bindings[0]) || "default")
.trim()
.replace(/^\[(.*?)\]$/i, "$1")
.split(",");
let value = getValueForBinding(bindingDataProperty, {
data,
contextElement: contextElement,
currentElement: child,
});
if (value === undefined) {
if (bindOptions.onlyDefined === true) {
return;
}
else {
value = null;
}
}
bindingFields.forEach((field) => {
if (field.startsWith("style.")) {
let stringVal = String(value);
if (value &&
!stringVal.includes("url(") &&
stringVal !== "none" &&
(field.includes("background-image") || stringVal.startsWith("http"))) {
value = `url(${value})`;
}
dom.setStyle(child, field.replace("style.", ""), value);
}
else if (field.startsWith("el.")) {
if (field === "el.remove") {
if (value === true) {
child.remove();
}
}
else if (field === "el.toggle") {
dom.setStyle(child, "display", value === true ? "" : "none");
}
else if (field.startsWith("el.classList.toggle")) {
const cssClass = field.replace(/el.classList.toggle\(['"]?(.*?)['"]?\)/, "$1");
child.classList.toggle(cssClass, !!value);
}
}
else if (RGX_BIND_FN_TEMPLATE_OR_ELEMENT.test(field)) {
dom.empty(child);
let elementOrTemplateName = RGX_BIND_FN_TEMPLATE_OR_ELEMENT.exec(field)[1];
if (Array.isArray(value) || value instanceof Set) {
const arrayVals = toArray(value);
let isElement = RGX_BIND_FN_ELEMENT.test(field);
let frag = document.createDocumentFragment();
arrayVals.forEach((item, index) => {
let itemData;
if (typeof item === "object") {
itemData = Object.assign({ $index: index }, item);
}
else {
itemData = { $index: index, value: item };
}
const els = bindToElOrTemplate(elementOrTemplateName, itemData);
frag.append(...els);
});
if (child.nodeName.toUpperCase() === "TPL") {
replaceTplElementWithChildren(child, frag);
}
else {
dom.empty(child).appendChild(frag);
}
}
else if (value) {
const els = bindToElOrTemplate(elementOrTemplateName, value);
if (child.nodeName.toUpperCase() === "TPL") {
replaceTplElementWithChildren(child, els);
}
else {
child.append(...els);
}
}
}
else {
dom.setAttributes(child, { [field]: value });
}
});
});
});
}
if (bindOptions.singleScoped !== true) {
let toInitEls = toArray(el.querySelectorAll(":scope *[data-tpl]"));
if (toInitEls.length) {
let innerInits = dom.queryAll(':scope *[data-tpl] *[data-tpl], :scope [data-autobind="false"] [data-tpl]', el);
toInitEls = toInitEls.filter((maybeInitEl) => {
if (innerInits.includes(maybeInitEl)) {
return false;
}
let tplKey = maybeInitEl.getAttribute("data-tpl");
if (data && (data[tplKey] || data[tplKey.replace("tpl:", "")])) {
return true;
}
return maybeInitEl.getAttribute("data-autobind") !== "false";
});
toInitEls.forEach((toInitEl) => {
var tplKey = toInitEl.getAttribute("data-tpl");
init(toInitEl, (data && (data[tplKey] || data[tplKey.replace("tpl:", "")])) || data);
});
}
}
}
}
function bindToElOrTemplate(elementOrTemplateName, data) {
let el = getTemplateFragment(elementOrTemplateName);
if (!el) {
el = dom.createElement(elementOrTemplateName, data);
}
else {
el = inflateOnce(el, data, { skipInit: false });
}
const els = (Array.isArray(el) ? el : [el]).filter((el) => !!el);
els.forEach((el) => {
el.removeAttribute("data-tpl");
let toBindEls = dom.queryAll("[data-tpl]", el);
let innerBindsElements = dom.queryAll(`:scope [data-tpl] [${CONFIG.attrBind}], :scope [data-autobind="false"] [${CONFIG.attrBind}]`, el);
toBindEls = toBindEls.filter((maybeBind) => !innerBindsElements.includes(maybeBind));
toBindEls.forEach((c) => c.removeAttribute("data-tpl"));
});
return els;
}