@eccenca/gui-elements
Version:
GUI elements based on other libraries, usable in React application, written in Typescript.
152 lines • 6.39 kB
JavaScript
/**
* Based on CSS Tricks tutorial.
* @see https://css-tricks.com/how-to-get-all-custom-properties-on-a-page-in-javascript/
*/
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
var __rest = (this && this.__rest) || function (s, e) {
var t = {};
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)
t[p] = s[p];
if (s != null && typeof Object.getOwnPropertySymbols === "function")
for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {
if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))
t[p[i]] = s[p[i]];
}
return t;
};
var __read = (this && this.__read) || function (o, n) {
var m = typeof Symbol === "function" && o[Symbol.iterator];
if (!m) return o;
var i = m.call(o), r, ar = [], e;
try {
while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
}
catch (error) { e = { error: error }; }
finally {
try {
if (r && !r.done && (m = i["return"])) m.call(i);
}
finally { if (e) throw e.error; }
}
return ar;
};
var __spreadArray = (this && this.__spreadArray) || function (to, from, pack) {
if (pack || arguments.length === 2) for (var i = 0, l = from.length, ar; i < l; i++) {
if (ar || !(i in from)) {
if (!ar) ar = Array.prototype.slice.call(from, 0, i);
ar[i] = from[i];
}
}
return to.concat(ar || Array.prototype.slice.call(from));
};
var CssCustomProperties = /** @class */ (function () {
function CssCustomProperties(props) {
if (props === void 0) { props = {}; }
var _this = this;
this.getterDefaultProps = {};
this.customprops = {};
// Methods
this.customProperties = function (props) {
if (props === void 0) { props = {}; }
// FIXME:
// in case of performance issues results should get saved at least into intern variables
// other cache strategies could be also tested
if (Object.keys(_this.customprops).length > 1) {
return _this.customprops;
}
var customprops = CssCustomProperties.listCustomProperties(__assign(__assign({}, _this.getterDefaultProps), props));
_this.customprops = customprops;
return customprops;
};
this.getterDefaultProps = props;
}
CssCustomProperties.listLocalStylesheets = function () {
if (document && document.styleSheets) {
return Array.from(document.styleSheets).filter(function (stylesheet) {
// is inline stylesheet or from same domain
if (!stylesheet.href) {
return true;
}
return stylesheet.href.indexOf(window.location.origin) === 0;
});
}
return [];
};
CssCustomProperties.listLocalCssRules = function () {
return CssCustomProperties.listLocalStylesheets()
.map(function (stylesheet) {
return Array.from(stylesheet.cssRules);
})
.flat();
};
CssCustomProperties.listLocalCssStyleRules = function (filter) {
if (filter === void 0) { filter = {}; }
var _a = filter.cssRuleType, cssRuleType = _a === void 0 ? "CSSStyleRule" : _a, selectorText = filter.selectorText;
var cssStyleRules = CssCustomProperties.listLocalCssRules().filter(function (rule) {
var cssrule = rule;
if (cssrule.style) {
if (cssrule.constructor.name !== cssRuleType) {
return false;
}
if (!!selectorText && cssrule.selectorText !== selectorText) {
return false;
}
return true;
}
else {
return false;
}
});
return cssStyleRules;
};
CssCustomProperties.listLocalCssStyleRuleProperties = function (filter) {
if (filter === void 0) { filter = {}; }
var _a = filter.propertyType, propertyType = _a === void 0 ? "all" : _a, otherFilters = __rest(filter, ["propertyType"]);
return CssCustomProperties.listLocalCssStyleRules(otherFilters)
.map(function (cssrule) {
return __spreadArray([], __read(cssrule.style), false).map(function (propertyname) {
return [propertyname.trim(), cssrule.style.getPropertyValue(propertyname).trim()];
});
})
.flat()
.filter(function (declaration) {
switch (propertyType) {
case "normal":
return declaration[0].indexOf("--") !== 0;
case "custom":
return declaration[0].indexOf("--") === 0;
}
return true; // case "all"
});
};
CssCustomProperties.listCustomProperties = function (props) {
if (props === void 0) { props = {}; }
var _a = props.removeDashPrefix, removeDashPrefix = _a === void 0 ? true : _a, _b = props.returnObject, returnObject = _b === void 0 ? true : _b, _c = props.filterName, filterName = _c === void 0 ? function () { return true; } : _c, filterProps = __rest(props, ["removeDashPrefix", "returnObject", "filterName"]);
var customProperties = CssCustomProperties.listLocalCssStyleRuleProperties(__assign(__assign({}, filterProps), { propertyType: "custom" }))
.filter(function (declaration) {
return filterName(declaration[0]);
})
.map(function (declaration) {
if (removeDashPrefix) {
return [declaration[0].substr(2), declaration[1]];
}
return declaration;
});
return returnObject
? Object.fromEntries(customProperties)
: customProperties;
};
return CssCustomProperties;
}());
export default CssCustomProperties;
//# sourceMappingURL=CssCustomProperties.js.map