(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
typeof define === 'function' && define.amd ? define(['exports'], factory) :
(global = global || self, factory(global.jss = {}));
}(this, function (exports) { 'use strict';
function _extends() {
_extends = Object.assign || 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;
};
return _extends.apply(this, arguments);
}
var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
var isBrowser = (typeof window === "undefined" ? "undefined" : _typeof(window)) === "object" && (typeof document === "undefined" ? "undefined" : _typeof(document)) === 'object' && document.nodeType === 9;
function warning(condition, message) {
{
if (condition) {
return;
}
var text = "Warning: " + message;
if (typeof console !== 'undefined') {
console.warn(text);
}
try {
throw Error(text);
} catch (x) {}
}
}
var plainObjectConstrurctor = {}.constructor;
function cloneStyle(style) {
if (style == null || typeof style !== 'object') return style;
if (Array.isArray(style)) return style.map(cloneStyle);
if (style.constructor !== plainObjectConstrurctor) return style;
var newStyle = {};
for (var name in style) {
newStyle[name] = cloneStyle(style[name]);
}
return newStyle;
}
/**
* Create a rule instance.
*/
function createRule(name, decl, options) {
if (name === void 0) {
name = 'unnamed';
}
var jss = options.jss;
var declCopy = cloneStyle(decl);
var rule = jss.plugins.onCreateRule(name, declCopy, options);
if (rule) return rule; // It is an at-rule and it has no instance.
if (name[0] === '@') {
warning(false, "[JSS] Unknown rule " + name);
}
return null;
}
function _defineProperties(target, props) {
for (var i = 0; i < props.length; i++) {
var descriptor = props[i];
descriptor.enumerable = descriptor.enumerable || false;
descriptor.configurable = true;
if ("value" in descriptor) descriptor.writable = true;
Object.defineProperty(target, descriptor.key, descriptor);
}
}
function _createClass(Constructor, protoProps, staticProps) {
if (protoProps) _defineProperties(Constructor.prototype, protoProps);
if (staticProps) _defineProperties(Constructor, staticProps);
return Constructor;
}
function _inheritsLoose(subClass, superClass) {
subClass.prototype = Object.create(superClass.prototype);
subClass.prototype.constructor = subClass;
subClass.__proto__ = superClass;
}
function _assertThisInitialized(self) {
if (self === void 0) {
throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
}
return self;
}
var join = function join(value, by) {
var result = '';
for (var i = 0; i < value.length; i++) {
// Remove !important from the value, it will be readded later.
if (value[i] === '!important') break;
if (result) result += by;
result += value[i];
}
return result;
};
/**
* Converts array values to string.
*
* `margin: [['5px', '10px']]` > `margin: 5px 10px;`
* `border: ['1px', '2px']` > `border: 1px, 2px;`
* `margin: [['5px', '10px'], '!important']` > `margin: 5px 10px !important;`
* `color: ['red', !important]` > `color: red !important;`
*/
function toCssValue(value, ignoreImportant) {
if (ignoreImportant === void 0) {
ignoreImportant = false;
}
if (!Array.isArray(value)) return value;
var cssValue = ''; // Support space separated values via `[['5px', '10px']]`.
if (Array.isArray(value[0])) {
for (var i = 0; i < value.length; i++) {
if (value[i] === '!important') break;
if (cssValue) cssValue += ', ';
cssValue += join(value[i], ' ');
}
} else cssValue = join(value, ', '); // Add !important, because it was ignored.
if (!ignoreImportant && value[value.length - 1] === '!important') {
cssValue += ' !important';
}
return cssValue;
}
/**
* Indent a string.
* http://jsperf.com/array-join-vs-for
*/
function indentStr(str, indent) {
var result = '';
for (var index = 0; index < indent; index++) {
result += ' ';
}
return result + str;
}
/**
* Converts a Rule to CSS string.
*/
function toCss(selector, style, options) {
if (options === void 0) {
options = {};
}
var result = '';
if (!style) return result;
var _options = options,
_options$indent = _options.indent,
indent = _options$indent === void 0 ? 0 : _options$indent;
var fallbacks = style.fallbacks;
if (selector) indent++; // Apply fallbacks first.
if (fallbacks) {
// Array syntax {fallbacks: [{prop: value}]}
if (Array.isArray(fallbacks)) {
for (var index = 0; index < fallbacks.length; index++) {
var fallback = fallbacks[index];
for (var prop in fallback) {
var value = fallback[prop];
if (value != null) {
if (result) result += '\n';
result += "" + indentStr(prop + ": " + toCssValue(value) + ";", indent);
}
}
}
} else {
// Object syntax {fallbacks: {prop: value}}
for (var _prop in fallbacks) {
var _value = fallbacks[_prop];
if (_value != null) {
if (result) result += '\n';
result += "" + indentStr(_prop + ": " + toCssValue(_value) + ";", indent);
}
}
}
}
for (var _prop2 in style) {
var _value2 = style[_prop2];
if (_value2 != null && _prop2 !== 'fallbacks') {
if (result) result += '\n';
result += "" + indentStr(_prop2 + ": " + toCssValue(_value2) + ";", indent);
}
} // Allow empty style in this case, because properties will be added dynamically.
if (!result && !options.allowEmpty) return result; // When rule is being stringified before selector was defined.
if (!selector) return result;
indent--;
if (result) result = "\n" + result + "\n";
return indentStr(selector + " {" + result, indent) + indentStr('}', indent);
}
var escapeRegex = /([[\].#*$><+~=|^:(),"'`\s])/g;
var nativeEscape = typeof CSS !== 'undefined' && CSS.escape;
var escape = (function (str) {
return nativeEscape ? nativeEscape(str) : str.replace(escapeRegex, '\\$1');
});
var BaseStyleRule =
/*#__PURE__*/
function () {
function BaseStyleRule(key, style, options) {
this.type = 'style';
this.key = void 0;
this.isProcessed = false;
this.style = void 0;
this.renderer = void 0;
this.renderable = void 0;
this.options = void 0;
var sheet = options.sheet,
Renderer = options.Renderer;
this.key = key;
this.options = options;
this.style = style;
if (sheet) this.renderer = sheet.renderer;else if (Renderer) this.renderer = new Renderer();
}
/**
* Get or set a style property.
*/
var _proto = BaseStyleRule.prototype;
_proto.prop = function prop(name, value, options) {
// It's a getter.
if (value === undefined) return this.style[name]; // Don't do anything if the value has not changed.
var force = options ? options.force : false;
if (!force && this.style[name] === value) return this;
var newValue = value;
if (!options || options.process !== false) {
newValue = this.options.jss.plugins.onChangeValue(value, name, this);
}
var isEmpty = newValue == null || newValue === false;
var isDefined = name in this.style; // Value is empty and wasn't defined before.
if (isEmpty && !isDefined && !force) return this; // We are going to remove this value.
var remove = isEmpty && isDefined;
if (remove) delete this.style[name];else this.style[name] = newValue; // Renderable is defined if StyleSheet option `link` is true.
if (this.renderable && this.renderer) {
if (remove) this.renderer.removeProperty(this.renderable, name);else this.renderer.setProperty(this.renderable, name, newValue);
return this;
}
var sheet = this.options.sheet;
if (sheet && sheet.attached) {
warning(false, '[JSS] Rule is not linked. Missing sheet option "link: true".');
}
return this;
};
return BaseStyleRule;
}();
var StyleRule =
/*#__PURE__*/
function (_BaseStyleRule) {
_inheritsLoose(StyleRule, _BaseStyleRule);
function StyleRule(key, style, options) {
var _this;
_this = _BaseStyleRule.call(this, key, style, options) || this;
_this.selectorText = void 0;
_this.id = void 0;
_this.renderable = void 0;
var selector = options.selector,
scoped = options.scoped,
sheet = options.sheet,
generateId = options.generateId;
if (selector) {
_this.selectorText = selector;
} else if (scoped !== false) {
_this.id = generateId(_assertThisInitialized(_assertThisInitialized(_this)), sheet);
_this.selectorText = "." + escape(_this.id);
}
return _this;
}
/**
* Set selector string.
* Attention: use this with caution. Most browsers didn't implement
* selectorText setter, so this may result in rerendering of entire Style Sheet.
*/
var _proto2 = StyleRule.prototype;
/**
* Apply rule to an element inline.
*/
_proto2.applyTo = function applyTo(renderable) {
var renderer = this.renderer;
if (renderer) {
var json = this.toJSON();
for (var prop in json) {
renderer.setProperty(renderable, prop, json[prop]);
}
}
return this;
}
/**
* Returns JSON representation of the rule.
* Fallbacks are not supported.
* Useful for inline styles.
*/
;
_proto2.toJSON = function toJSON() {
var json = {};
for (var prop in this.style) {
var value = this.style[prop];
if (typeof value !== 'object') json[prop] = value;else if (Array.isArray(value)) json[prop] = toCssValue(value);
}
return json;
}
/**
* Generates a CSS string.
*/
;
_proto2.toString = function toString(options) {
var sheet = this.options.sheet;
var link = sheet ? sheet.options.link : false;
var opts = link ? _extends({}, options, {
allowEmpty: true
}) : options;
return toCss(this.selectorText, this.style, opts);
};
_createClass(StyleRule, [{
key: "selector",
set: function set(selector) {
if (selector === this.selectorText) return;
this.selectorText = selector;
var renderer = this.renderer,
renderable = this.renderable;
if (!renderable || !renderer) return;
var hasChanged = renderer.setSelector(renderable, selector); // If selector setter is not implemented, rerender the rule.
if (!hasChanged) {
renderer.replaceRule(renderable, this);
}
}
/**
* Get selector string.
*/
,
get: function get() {
return this.selectorText;
}
}]);
return StyleRule;
}(BaseStyleRule);
var pluginStyleRule = {
onCreateRule: function onCreateRule(name, style, options) {
if (name[0] === '@' || options.parent && options.parent.type === 'keyframes') {
return null;
}
return new StyleRule(name, style, options);
}
};
var defaultToStringOptions = {
indent: 1,
children: true
};
var atRegExp = /@([\w-]+)/;
/**
* Conditional rule for @media, @supports
*/
var ConditionalRule =
/*#__PURE__*/
function () {
function ConditionalRule(key, styles, options) {
this.type = 'conditional';
this.at = void 0;
this.key = void 0;
this.rules = void 0;
this.options = void 0;
this.isProcessed = false;
this.renderable = void 0;
this.key = key;
var atMatch = key.match(atRegExp);
this.at = atMatch ? atMatch[1] : 'unknown';
this.options = options;
this.rules = new RuleList(_extends({}, options, {
parent: this
}));
for (var name in styles) {
this.rules.add(name, styles[name]);
}
this.rules.process();
}
/**
* Get a rule.
*/
var _proto = ConditionalRule.prototype;
_proto.getRule = function getRule(name) {
return this.rules.get(name);
}
/**
* Get index of a rule.
*/
;
_proto.indexOf = function indexOf(rule) {
return this.rules.indexOf(rule);
}
/**
* Create and register rule, run plugins.
*/
;
_proto.addRule = function addRule(name, style, options) {
var rule = this.rules.add(name, style, options);
if (!rule) return null;
this.options.jss.plugins.onProcessRule(rule);
return rule;
}
/**
* Generates a CSS string.
*/
;
_proto.toString = function toString(options) {
if (options === void 0) {
options = defaultToStringOptions;
}
if (options.indent == null) options.indent = defaultToStringOptions.indent;
if (options.children == null) options.children = defaultToStringOptions.children;
if (options.children === false) {
return this.key + " {}";
}
var children = this.rules.toString(options);
return children ? this.key + " {\n" + children + "\n}" : '';
};
return ConditionalRule;
}();
var keyRegExp = /@media|@supports\s+/;
var pluginConditionalRule = {
onCreateRule: function onCreateRule(key, styles, options) {
return keyRegExp.test(key) ? new ConditionalRule(key, styles, options) : null;
}
};
var defaultToStringOptions$1 = {
indent: 1,
children: true
};
var nameRegExp = /@keyframes\s+([\w-]+)/;
/**
* Rule for @keyframes
*/
var KeyframesRule =
/*#__PURE__*/
function () {
function KeyframesRule(key, frames, options) {
this.type = 'keyframes';
this.at = '@keyframes';
this.key = void 0;
this.name = void 0;
this.id = void 0;
this.rules = void 0;
this.options = void 0;
this.isProcessed = false;
this.renderable = void 0;
var nameMatch = key.match(nameRegExp);
if (nameMatch && nameMatch[1]) {
this.name = nameMatch[1];
} else {
this.name = 'noname';
warning(false, "[JSS] Bad keyframes name " + key);
}
this.key = this.type + "-" + this.name;
this.options = options;
var scoped = options.scoped,
sheet = options.sheet,
generateId = options.generateId;
this.id = scoped === false ? this.name : escape(generateId(this, sheet));
this.rules = new RuleList(_extends({}, options, {
parent: this
}));
for (var name in frames) {
this.rules.add(name, frames[name], _extends({}, options, {
parent: this
}));
}
this.rules.process();
}
/**
* Generates a CSS string.
*/
var _proto = KeyframesRule.prototype;
_proto.toString = function toString(options) {
if (options === void 0) {
options = defaultToStringOptions$1;
}
if (options.indent == null) options.indent = defaultToStringOptions$1.indent;
if (options.children == null) options.children = defaultToStringOptions$1.children;
if (options.children === false) {
return this.at + " " + this.id + " {}";
}
var children = this.rules.toString(options);
if (children) children = "\n" + children + "\n";
return this.at + " " + this.id + " {" + children + "}";
};
return KeyframesRule;
}();
var keyRegExp$1 = /@keyframes\s+/;
var refRegExp = /\$([\w-]+)/g;
var findReferencedKeyframe = function findReferencedKeyframe(val, keyframes) {
if (typeof val === 'string') {
return val.replace(refRegExp, function (match, name) {
if (name in keyframes) {
return keyframes[name];
}
warning(false, "[JSS] Referenced keyframes rule \"" + name + "\" is not defined.");
return match;
});
}
return val;
};
/**
* Replace the reference for a animation name.
*/
var replaceRef = function replaceRef(style, prop, keyframes) {
var value = style[prop];
var refKeyframe = findReferencedKeyframe(value, keyframes);
if (refKeyframe !== value) {
style[prop] = refKeyframe;
}
};
var plugin = {
onCreateRule: function onCreateRule(key, frames, options) {
return typeof key === 'string' && keyRegExp$1.test(key) ? new KeyframesRule(key, frames, options) : null;
},
// Animation name ref replacer.
onProcessStyle: function onProcessStyle(style, rule, sheet) {
if (rule.type !== 'style' || !sheet) return style;
if ('animation-name' in style) replaceRef(style, 'animation-name', sheet.keyframes);
if ('animation' in style) replaceRef(style, 'animation', sheet.keyframes);
return style;
},
onChangeValue: function onChangeValue(val, prop, rule) {
var sheet = rule.options.sheet;
if (!sheet) {
return val;
}
switch (prop) {
case 'animation':
return findReferencedKeyframe(val, sheet.keyframes);
case 'animation-name':
return findReferencedKeyframe(val, sheet.keyframes);
default:
return val;
}
}
};
var KeyframeRule =
/*#__PURE__*/
function (_BaseStyleRule) {
_inheritsLoose(KeyframeRule, _BaseStyleRule);
function KeyframeRule() {
var _this;
for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
args[_key] = arguments[_key];
}
_this = _BaseStyleRule.call.apply(_BaseStyleRule, [this].concat(args)) || this;
_this.renderable = void 0;
return _this;
}
var _proto = KeyframeRule.prototype;
/**
* Generates a CSS string.
*/
_proto.toString = function toString(options) {
var sheet = this.options.sheet;
var link = sheet ? sheet.options.link : false;
var opts = link ? _extends({}, options, {
allowEmpty: true
}) : options;
return toCss(this.key, this.style, opts);
};
return KeyframeRule;
}(BaseStyleRule);
var pluginKeyframeRule = {
onCreateRule: function onCreateRule(key, style, options) {
if (options.parent && options.parent.type === 'keyframes') {
return new KeyframeRule(key, style, options);
}
return null;
}
};
var FontFaceRule =
/*#__PURE__*/
function () {
function FontFaceRule(key, style, options) {
this.type = 'font-face';
this.at = '@font-face';
this.key = void 0;
this.style = void 0;
this.options = void 0;
this.isProcessed = false;
this.renderable = void 0;
this.key = key;
this.style = style;
this.options = options;
}
/**
* Generates a CSS string.
*/
var _proto = FontFaceRule.prototype;
_proto.toString = function toString(options) {
if (Array.isArray(this.style)) {
var str = '';
for (var index = 0; index < this.style.length; index++) {
str += toCss(this.key, this.style[index]);
if (this.style[index + 1]) str += '\n';
}
return str;
}
return toCss(this.key, this.style, options);
};
return FontFaceRule;
}();
var pluginFontFaceRule = {
onCreateRule: function onCreateRule(key, style, options) {
return key === '@font-face' ? new FontFaceRule(key, style, options) : null;
}
};
var ViewportRule =
/*#__PURE__*/
function () {
function ViewportRule(key, style, options) {
this.type = 'viewport';
this.at = '@viewport';
this.key = void 0;
this.style = void 0;
this.options = void 0;
this.isProcessed = false;
this.renderable = void 0;
this.key = key;
this.style = style;
this.options = options;
}
/**
* Generates a CSS string.
*/
var _proto = ViewportRule.prototype;
_proto.toString = function toString(options) {
return toCss(this.key, this.style, options);
};
return ViewportRule;
}();
var pluginViewportRule = {
onCreateRule: function onCreateRule(key, style, options) {
return key === '@viewport' || key === '@-ms-viewport' ? new ViewportRule(key, style, options) : null;
}
};
var SimpleRule =
/*#__PURE__*/
function () {
function SimpleRule(key, value, options) {
this.type = 'simple';
this.key = void 0;
this.value = void 0;
this.options = void 0;
this.isProcessed = false;
this.renderable = void 0;
this.key = key;
this.value = value;
this.options = options;
}
/**
* Generates a CSS string.
*/
// eslint-disable-next-line no-unused-vars
var _proto = SimpleRule.prototype;
_proto.toString = function toString(options) {
if (Array.isArray(this.value)) {
var str = '';
for (var index = 0; index < this.value.length; index++) {
str += this.key + " " + this.value[index] + ";";
if (this.value[index + 1]) str += '\n';
}
return str;
}
return this.key + " " + this.value + ";";
};
return SimpleRule;
}();
var keysMap = {
'@charset': true,
'@import': true,
'@namespace': true
};
var pluginSimpleRule = {
onCreateRule: function onCreateRule(key, value, options) {
return key in keysMap ? new SimpleRule(key, value, options) : null;
}
};
var plugins = [pluginStyleRule, pluginConditionalRule, plugin, pluginKeyframeRule, pluginFontFaceRule, pluginViewportRule, pluginSimpleRule];
var defaultUpdateOptions = {
process: true
};
var forceUpdateOptions = {
force: true,
process: true
/**
* Contains rules objects and allows adding/removing etc.
* Is used for e.g. by `StyleSheet` or `ConditionalRule`.
*/
};
var RuleList =
/*#__PURE__*/
function () {
// Rules registry for access by .get() method.
// It contains the same rule registered by name and by selector.
// Original styles object.
// Used to ensure correct rules order.
function RuleList(options) {
this.map = {};
this.raw = {};
this.index = [];
this.options = void 0;
this.classes = void 0;
this.keyframes = void 0;
this.options = options;
this.classes = options.classes;
this.keyframes = options.keyframes;
}
/**
* Create and register rule.
*
* Will not render after Style Sheet was rendered the first time.
*/
var _proto = RuleList.prototype;
_proto.add = function add(key, decl, ruleOptions) {
var _this$options = this.options,
parent = _this$options.parent,
sheet = _this$options.sheet,
jss = _this$options.jss,
Renderer = _this$options.Renderer,
generateId = _this$options.generateId,
scoped = _this$options.scoped;
var options = _extends({
classes: this.classes,
parent: parent,
sheet: sheet,
jss: jss,
Renderer: Renderer,
generateId: generateId,
scoped: scoped
}, ruleOptions); // We need to save the original decl before creating the rule
// because cache plugin needs to use it as a key to return a cached rule.
this.raw[key] = decl;
if (key in this.classes) {
// For e.g. rules inside of @media container
options.selector = "." + escape(this.classes[key]);
}
var rule = createRule(key, decl, options);
if (!rule) return null;
this.register(rule);
var index = options.index === undefined ? this.index.length : options.index;
this.index.splice(index, 0, rule);
return rule;
}
/**
* Get a rule.
*/
;
_proto.get = function get(name) {
return this.map[name];
}
/**
* Delete a rule.
*/
;
_proto.remove = function remove(rule) {
this.unregister(rule);
delete this.raw[rule.key];
this.index.splice(this.indexOf(rule), 1);
}
/**
* Get index of a rule.
*/
;
_proto.indexOf = function indexOf(rule) {
return this.index.indexOf(rule);
}
/**
* Run `onProcessRule()` plugins on every rule.
*/
;
_proto.process = function process() {
var plugins$$1 = this.options.jss.plugins; // We need to clone array because if we modify the index somewhere else during a loop
// we end up with very hard-to-track-down side effects.
this.index.slice(0).forEach(plugins$$1.onProcessRule, plugins$$1);
}
/**
* Register a rule in `.map` and `.classes` maps.
*/
;
_proto.register = function register(rule) {
this.map[rule.key] = rule;
if (rule instanceof StyleRule) {
this.map[rule.selector] = rule;
if (rule.id) this.classes[rule.key] = rule.id;
} else if (rule instanceof KeyframesRule && this.keyframes) {
this.keyframes[rule.name] = rule.id;
}
}
/**
* Unregister a rule.
*/
;
_proto.unregister = function unregister(rule) {
delete this.map[rule.key];
if (rule instanceof StyleRule) {
delete this.map[rule.selector];
delete this.classes[rule.key];
} else if (rule instanceof KeyframesRule) {
delete this.keyframes[rule.name];
}
}
/**
* Update the function values with a new data.
*/
;
_proto.update = function update() {
var name;
var data;
var options;
if (typeof (arguments.length <= 0 ? undefined : arguments[0]) === 'string') {
name = arguments.length <= 0 ? undefined : arguments[0]; // $FlowFixMe
data = arguments.length <= 1 ? undefined : arguments[1]; // $FlowFixMe
options = arguments.length <= 2 ? undefined : arguments[2];
} else {
data = arguments.length <= 0 ? undefined : arguments[0]; // $FlowFixMe
options = arguments.length <= 1 ? undefined : arguments[1];
name = null;
}
if (name) {
this.onUpdate(data, this.get(name), options);
} else {
for (var index = 0; index < this.index.length; index++) {
this.onUpdate(data, this.index[index], options);
}
}
}
/**
* Execute plugins, update rule props.
*/
;
_proto.onUpdate = function onUpdate(data, rule, options) {
if (options === void 0) {
options = defaultUpdateOptions;
}
var _this$options2 = this.options,
plugins$$1 = _this$options2.jss.plugins,
sheet = _this$options2.sheet; // It is a rules container like for e.g. ConditionalRule.
if (rule.rules instanceof RuleList) {
rule.rules.update(data, options);
return;
}
var styleRule = rule;
var style = styleRule.style;
plugins$$1.onUpdate(data, rule, sheet, options); // We rely on a new `style` ref in case it was mutated during onUpdate hook.
if (options.process && style && style !== styleRule.style) {
// We need to run the plugins in case new `style` relies on syntax plugins.
plugins$$1.onProcessStyle(styleRule.style, styleRule, sheet); // Update and add props.
for (var prop in styleRule.style) {
var nextValue = styleRule.style[prop];
var prevValue = style[prop]; // We need to use `force: true` because `rule.style` has been updated during onUpdate hook, so `rule.prop()` will not update the CSSOM rule.
// We do this comparison to avoid unneeded `rule.prop()` calls, since we have the old `style` object here.
if (nextValue !== prevValue) {
styleRule.prop(prop, nextValue, forceUpdateOptions);
}
} // Remove props.
for (var _prop in style) {
var _nextValue = styleRule.style[_prop];
var _prevValue = style[_prop]; // We need to use `force: true` because `rule.style` has been updated during onUpdate hook, so `rule.prop()` will not update the CSSOM rule.
// We do this comparison to avoid unneeded `rule.prop()` calls, since we have the old `style` object here.
if (_nextValue == null && _nextValue !== _prevValue) {
styleRule.prop(_prop, null, forceUpdateOptions);
}
}
}
}
/**
* Convert rules to a CSS string.
*/
;
_proto.toString = function toString(options) {
var str = '';
var sheet = this.options.sheet;
var link = sheet ? sheet.options.link : false;
for (var index = 0; index < this.index.length; index++) {
var rule = this.index[index];
var css = rule.toString(options); // No need to render an empty rule.
if (!css && !link) continue;
if (str) str += '\n';
str += css;
}
return str;
};
return RuleList;
}();
var StyleSheet =
/*#__PURE__*/
function () {
function StyleSheet(styles, options) {
this.options = void 0;
this.deployed = void 0;
this.attached = void 0;
this.rules = void 0;
this.renderer = void 0;
this.classes = void 0;
this.keyframes = void 0;
this.queue = void 0;
this.attached = false;
this.deployed = false;
this.classes = {};
this.keyframes = {};
this.options = _extends({}, options, {
sheet: this,
parent: this,
classes: this.classes,
keyframes: this.keyframes
});
if (options.Renderer) {
this.renderer = new options.Renderer(this);
}
this.rules = new RuleList(this.options);
for (var name in styles) {
this.rules.add(name, styles[name]);
}
this.rules.process();
}
/**
* Attach renderable to the render tree.
*/
var _proto = StyleSheet.prototype;
_proto.attach = function attach() {
if (this.attached) return this;
if (this.renderer) this.renderer.attach();
this.attached = true; // Order is important, because we can't use insertRule API if style element is not attached.
if (!this.deployed) this.deploy();
return this;
}
/**
* Remove renderable from render tree.
*/
;
_proto.detach = function detach() {
if (!this.attached) return this;
if (this.renderer) this.renderer.detach();
this.attached = false;
return this;
}
/**
* Add a rule to the current stylesheet.
* Will insert a rule also after the stylesheet has been rendered first time.
*/
;
_proto.addRule = function addRule(name, decl, options) {
var queue = this.queue; // Plugins can create rules.
// In order to preserve the right order, we need to queue all `.addRule` calls,
// which happen after the first `rules.add()` call.
if (this.attached && !queue) this.queue = [];
var rule = this.rules.add(name, decl, options);
if (!rule) return null;
this.options.jss.plugins.onProcessRule(rule);
if (this.attached) {
if (!this.deployed) return rule; // Don't insert rule directly if there is no stringified version yet.
// It will be inserted all together when .attach is called.
if (queue) queue.push(rule);else {
this.insertRule(rule);
if (this.queue) {
this.queue.forEach(this.insertRule, this);
this.queue = undefined;
}
}
return rule;
} // We can't add rules to a detached style node.
// We will redeploy the sheet once user will attach it.
this.deployed = false;
return rule;
}
/**
* Insert rule into the StyleSheet
*/
;
_proto.insertRule = function insertRule(rule) {
if (this.renderer) {
this.renderer.insertRule(rule);
}
}
/**
* Create and add rules.
* Will render also after Style Sheet was rendered the first time.
*/
;
_proto.addRules = function addRules(styles, options) {
var added = [];
for (var name in styles) {
var rule = this.addRule(name, styles[name], options);
if (rule) added.push(rule);
}
return added;
}
/**
* Get a rule by name.
*/
;
_proto.getRule = function getRule(name) {
return this.rules.get(name);
}
/**
* Delete a rule by name.
* Returns `true`: if rule has been deleted from the DOM.
*/
;
_proto.deleteRule = function deleteRule(name) {
var rule = this.rules.get(name);
if (!rule) return false;
this.rules.remove(rule);
if (this.attached && rule.renderable && this.renderer) {
return this.renderer.deleteRule(rule.renderable);
}
return true;
}
/**
* Get index of a rule.
*/
;
_proto.indexOf = function indexOf(rule) {
return this.rules.indexOf(rule);
}
/**
* Deploy pure CSS string to a renderable.
*/
;
_proto.deploy = function deploy() {
if (this.renderer) this.renderer.deploy();
this.deployed = true;
return this;
}
/**
* Update the function values with a new data.
*/
;
_proto.update = function update() {
var _this$rules;
(_this$rules = this.rules).update.apply(_this$rules, arguments);
return this;
}
/**
* Convert rules to a CSS string.
*/
;
_proto.toString = function toString(options) {
return this.rules.toString(options);
};
return StyleSheet;
}();
var PluginsRegistry =
/*#__PURE__*/
function () {
function PluginsRegistry() {
this.plugins = {
internal: [],
external: []
};
this.registry = void 0;
}
var _proto = PluginsRegistry.prototype;
/**
* Call `onCreateRule` hooks and return an object if returned by a hook.
*/
_proto.onCreateRule = function onCreateRule(name, decl, options) {
for (var i = 0; i < this.registry.onCreateRule.length; i++) {
var rule = this.registry.onCreateRule[i](name, decl, options);
if (rule) return rule;
}
return null;
}
/**
* Call `onProcessRule` hooks.
*/
;
_proto.onProcessRule = function onProcessRule(rule) {
if (rule.isProcessed) return;
var sheet = rule.options.sheet;
for (var i = 0; i < this.registry.onProcessRule.length; i++) {
this.registry.onProcessRule[i](rule, sheet);
}
if (rule.style) this.onProcessStyle(rule.style, rule, sheet);
rule.isProcessed = true;
}
/**
* Call `onProcessStyle` hooks.
*/
;
_proto.onProcessStyle = function onProcessStyle(style, rule, sheet) {
for (var i = 0; i < this.registry.onProcessStyle.length; i++) {
// $FlowFixMe
rule.style = this.registry.onProcessStyle[i](rule.style, rule, sheet);
}
}
/**
* Call `onProcessSheet` hooks.
*/
;
_proto.onProcessSheet = function onProcessSheet(sheet) {
for (var i = 0; i < this.registry.onProcessSheet.length; i++) {
this.registry.onProcessSheet[i](sheet);
}
}
/**
* Call `onUpdate` hooks.
*/
;
_proto.onUpdate = function onUpdate(data, rule, sheet, options) {
for (var i = 0; i < this.registry.onUpdate.length; i++) {
this.registry.onUpdate[i](data, rule, sheet, options);
}
}
/**
* Call `onChangeValue` hooks.
*/
;
_proto.onChangeValue = function onChangeValue(value, prop, rule) {
var processedValue = value;
for (var i = 0; i < this.registry.onChangeValue.length; i++) {
processedValue = this.registry.onChangeValue[i](processedValue, prop, rule);
}
return processedValue;
}
/**
* Register a plugin.
*/
;
_proto.use = function use(newPlugin, options) {
if (options === void 0) {
options = {
queue: 'external'
};
}
var plugins = this.plugins[options.queue]; // Avoids applying same plugin twice, at least based on ref.
if (plugins.indexOf(newPlugin) !== -1) {
return;
}
plugins.push(newPlugin);
this.registry = [].concat(this.plugins.external, this.plugins.internal).reduce(function (registry, plugin) {
for (var name in plugin) {
if (name in registry) {
registry[name].push(plugin[name]);
} else {
warning(false, "[JSS] Unknown hook \"" + name + "\".");
}
}
return registry;
}, {
onCreateRule: [],
onProcessRule: [],
onProcessStyle: [],
onProcessSheet: [],
onChangeValue: [],
onUpdate: []
});
};
return PluginsRegistry;
}();
function _objectWithoutPropertiesLoose(source, excluded) {
if (source == null) return {};
var target = {};
var sourceKeys = Object.keys(source);
var key, i;
for (i = 0; i < sourceKeys.length; i++) {
key = sourceKeys[i];
if (excluded.indexOf(key) >= 0) continue;
target[key] = source[key];
}
return target;
}
/**
* Sheets registry to access them all at one place.
*/
var SheetsRegistry =
/*#__PURE__*/
function () {
function SheetsRegistry() {
this.registry = [];
}
var _proto = SheetsRegistry.prototype;
/**
* Register a Style Sheet.
*/
_proto.add = function add(sheet) {
var registry = this.registry;
var index = sheet.options.index;
if (registry.indexOf(sheet) !== -1) return;
if (registry.length === 0 || index >= this.index) {
registry.push(sheet);
return;
} // Find a position.
for (var i = 0; i < registry.length; i++) {
if (registry[i].options.index > index) {
registry.splice(i, 0, sheet);
return;
}
}
}
/**
* Reset the registry.
*/
;
_proto.reset = function reset() {
this.registry = [];
}
/**
* Remove a Style Sheet.
*/
;
_proto.remove = function remove(sheet) {
var index = this.registry.indexOf(sheet);
this.registry.splice(index, 1);
}
/**
* Convert all attached sheets to a CSS string.
*/
;
_proto.toString = function toString(_temp) {
var _ref = _temp === void 0 ? {} : _temp,
attached = _ref.attached,
options = _objectWithoutPropertiesLoose(_ref, ["attached"]);
var css = '';
for (var i = 0; i < this.registry.length; i++) {
var sheet = this.registry[i];
if (attached != null && sheet.attached !== attached) {
continue;
}
if (css) css += '\n';
css += sheet.toString(options);
}
return css;
};
_createClass(SheetsRegistry, [{
key: "index",
/**
* Current highest index number.
*/
get: function get() {
return this.registry.length === 0 ? 0 : this.registry[this.registry.length - 1].options.index;
}
}]);
return SheetsRegistry;
}();
/**
* This is a global sheets registry. Only DomRenderer will add sheets to it.
* On the server one should use an own SheetsRegistry instance and add the
* sheets to it, because you need to make sure to create a new registry for
* each request in order to not leak sheets across requests.
*/
var sheets = new SheetsRegistry();
/* eslint-disable */
// https://github.com/zloirock/core-js/issues/86#issuecomment-115759028
var globalThis = typeof window != 'undefined' && window.Math == Math ? window : typeof self != 'undefined' && self.Math == Math ? self : Function('return this')();
var ns = '2f1acc6c3a606b082e5eef5e54414ffb';
if (globalThis[ns] == null) globalThis[ns] = 0; // Bundle may contain multiple JSS versions at the same time. In order to identify
// the current version with just one short number and use it for classes generation
// we use a counter. Also it is more accurate, because user can manually reevaluate
// the module.
var moduleId = globalThis[ns]++;
var maxRules = 1e10;
/**
* Returns a function which generates unique class names based on counters.
* When new generator function is created, rule counter is reseted.
* We need to reset the rule counter for SSR for each request.
*/
var createGenerateId = function createGenerateId(options) {
if (options === void 0) {
options = {};
}
var ruleCounter = 0;
return function (rule, sheet) {
ruleCounter += 1;
if (ruleCounter > maxRules) {
warning(false, "[JSS] You might have a memory leak. Rule counter is at " + ruleCounter + ".");
}
var jssId = '';
var prefix = '';
if (sheet) {
if (sheet.options.classNamePrefix) {
prefix = sheet.options.classNamePrefix;
}
if (sheet.options.jss.id != null) {
jssId = String(sheet.options.jss.id);
}
}
if (options.minify) {
// Using "c" because a number can't be the first char in a class name.
return "" + (prefix || 'c') + moduleId + jssId + ruleCounter;
}
return prefix + rule.key + "-" + moduleId + (jssId ? "-" + jssId : '') + "-" + ruleCounter;
};
};
/**
* Cache the value from the first time a function is called.
*/
var memoize = function memoize(fn) {
var value;
return function () {
if (!value) value = fn();
return value;
};
};
/**
* Get a style property value.
*/
function getPropertyValue(cssRule, prop) {
try {
// Support CSSTOM.
if (cssRule.attributeStyleMap) {
return cssRule.attributeStyleMap.get(prop);
}
return cssRule.style.getPropertyValue(prop);
} catch (err) {
// IE may throw if property is unknown.
return '';
}
}
/**
* Set a style property.
*/
function setProperty(cssRule, prop, value) {
try {
var cssValue = value;
if (Array.isArray(value)) {
cssValue = toCssValue(value, true);
if (value[value.length - 1] === '!important') {
cssRule.style.setProperty(prop, cssValue, 'important');
return true;
}
} // Support CSSTOM.
if (cssRule.attributeStyleMap) {
cssRule.attributeStyleMap.set(prop, cssValue);
} else {
cssRule.style.setProperty(prop, cssValue);
}
} catch (err) {
// IE may throw if property is unknown.
return false;
}
return true;
}
/**
* Remove a style property.
*/
function removeProperty(cssRule, prop) {
try {
// Support CSSTOM.
if (cssRule.attributeStyleMap) {
cssRule.attributeStyleMap.delete(prop);
} else {
cssRule.style.removeProperty(prop);
}
} catch (err) {
warning(false, "[JSS] DOMException \"" + err.message + "\" was thrown. Tried to remove property \"" + prop + "\".");
}
}
/**
* Set the selector.
*/
function setSelector(cssRule, selectorText) {
cssRule.selectorText = selectorText; // Return false if setter was not successful.
// Currently works in chrome only.
return cssRule.selectorText === selectorText;
}
/**
* Gets the `head` element upon the first call and caches it.
* We assume it can't be null.
*/
var getHead = memoize(function () {
return document.querySelector('head');
});
/**
* Find attached sheet with an index higher than the passed one.
*/
function findHigherSheet(registry, options) {
for (var i = 0; i < registry.length; i++) {
var sheet = registry[i];
if (sheet.attached && sheet.options.index > options.index && sheet.options.insertionPoint === options.insertionPoint) {
return sheet;
}
}
return null;
}
/**
* Find attached sheet with the highest index.
*/
function findHighestSheet(registry, options) {
for (var i = registry.length - 1; i >= 0; i--) {
var sheet = registry[i];
if (sheet.attached && sheet.options.insertionPoint === options.insertionPoint) {
return sheet;
}
}
return null;
}
/**
* Find a comment with "jss" inside.
*/
function findCommentNode(text) {
var head = getHead();
for (var i = 0; i < head.childNodes.length; i++) {
var node = head.childNodes[i];
if (node.nodeType === 8 && node.nodeValue.trim() === text) {
return node;
}
}
return null;
}
/**
* Find a node before which we can insert the sheet.
*/
function findPrevNode(options) {
var registry = sheets.registry;
if (registry.length > 0) {
// Try to insert before the next higher sheet.
var sheet = findHigherSheet(registry, options);
if (sheet && sheet.renderer) {
return {
parent: sheet.renderer.element.parentNode,
node: sheet.renderer.element
};
} // Otherwise insert after the last attached.
sheet = findHighestSheet(registry, options);
if (sheet && sheet.renderer) {
return {
parent: sheet.renderer.element.parentNode,
node: sheet.renderer.element.nextSibling
};
}
} // Try to find a comment placeholder if registry is empty.
var insertionPoint = options.insertionPoint;
if (insertionPoint && typeof insertionPoint === 'string') {
var comment = findCommentNode(insertionPoint);
if (comment) {
return {
parent: comment.parentNode,
node: comment.nextSibling
};
} // If user specifies an insertion point and it can't be found in the document -
// bad specificity issues may appear.
warning(false, "[JSS] Insertion point \"" + insertionPoint + "\" not found.");
}
return false;
}
/**
* Insert style element into the DOM.
*/
function insertStyle(style, options) {
var insertionPoint = options.insertionPoint;
var nextNode = findPrevNode(options);
if (nextNode !== false && nextNode.parent) {
nextNode.parent.insertBefore(style, nextNode.node);
return;
} // Works with iframes and any node types.
if (insertionPoint && typeof insertionPoint.nodeType === 'number') {
// https://stackoverflow.com/questions/41328728/force-casting-in-flow
var insertionPointElement = insertionPoint;
var parentNode = insertionPointElement.parentNode;
if (parentNode) parentNode.insertBefore(style, insertionPointElement.nextSibling);else warning(false, '[JSS] Insertion point is not in the DOM.');
return;
}
getHead().appendChild(style);
}
/**
* Read jss nonce setting from the page if the user has set it.
*/
var getNonce = memoize(function () {
var node = document.querySelector('meta[property="csp-nonce"]');
return node ? node.getAttribute('content') : null;
});
var _insertRule = function insertRule(container, rule, index) {
var maxIndex = container.cssRules.length; // In case previous insertion fails, passed index might be wrong
if (index === undefined || index > maxIndex) {
// eslint-disable-next-line no-param-reassign
index = maxIndex;
}
try {
if ('insertRule' in container) {
var c = container;
c.insertRule(rule, index);
} // Keyframes rule.
else if ('appendRule' in container) {
var _c = container;
_c.appendRule(rule);
}
} catch (err) {
warning(false, "[JSS] " + err.message);
return false;
}
return container.cssRules[index];
};
var createStyle = function createStyle() {
var el = document.createElement('style'); // Without it, IE will have a broken source order specificity if we
// insert rules after we insert the style tag.
// It seems to kick-off the source order specificity algorithm.
el.textContent = '\n';
return el;
};
var DomRenderer =
/*#__PURE__*/
function () {
// HTMLStyleElement needs fixing https://github.com/facebook/flow/issues/2696
function DomRenderer(sheet) {
this.getPropertyValue = getPropertyValue;
this.setProperty = setProperty;
this.removeProperty = removeProperty;
this.setSelector = setSelector;
this.element = void 0;
this.sheet = void 0;
this.hasInsertedRules = false;
// There is no sheet when the renderer is used from a standalone StyleRule.
if (sheet) sheets.add(sheet);
this.sheet = sheet;
var _ref = this.sheet ? this.sheet.options : {},
media = _ref.media,
meta = _ref.meta,
element = _ref.element;
this.element = element || createStyle();
this.element.setAttribute('data-jss', '');
if (media) this.element.setAttribute('media', media);
if (meta) this.element.setAttribute('data-meta', meta);
var nonce = getNonce();
if (nonce) this.element.setAttribute('nonce', nonce);
}
/**
* Insert style element into render tree.
*/
var _proto = DomRenderer.prototype;
_proto.attach = function attach() {
// In the case the element node is external and it is already in the DOM.
if (this.element.parentNode || !this.sheet) return;
insertStyle(this.element, this.sheet.options); // When rules are inserted using `insertRule` API, after `sheet.detach().attach()`
// most browsers create a new CSSStyleSheet, except of all IEs.
var deployed = Boolean(this.sheet && this.sheet.deployed);
if (this.hasInsertedRules && deployed) {
this.hasInsertedRules = false;
this.deploy();
}
}
/**
* Remove style element from render tree.
*/
;
_proto.detach = function detach() {
var parentNode = this.element.parentNode;
if (parentNode) parentNode.removeChild(this.element);
}
/**
* Inject CSS string into element.
*/
;
_proto.deploy = function deploy() {
var sheet = this.sheet;
if (!sheet) return;
if (sheet.options.link) {
this.insertRules(sheet.rules);
return;
}
this.element.textContent = "\n" + sheet.toString() + "\n";
}
/**
* Insert RuleList into an element.
*/
;
_proto.insertRules = function insertRules(rules, nativeParent) {
for (var i = 0; i < rules.index.length; i++) {
this.insertRule(rules.index[i], i, nativeParent);
}
}
/**
* Insert a rule into element.
*/
;
_proto.insertRule = function insertRule(rule, index, nativeParent) {
if (nativeParent === void 0) {
nativeParent = this.element.sheet;
}
if (rule.rules) {
var parent = rule;
var latestNativeParent = nativeParent;
if (rule.type === 'conditional' || rule.type === 'keyframes') {
// We need to render the container without children first.
latestNativeParent = _insertRule(nativeParent, parent.toString({
children: false
}), index);
if (latestNativeParent === false) {
return false;
}
}
this.insertRules(parent.rules, latestNativeParent);
return latestNativeParent;
} // IE keeps the CSSStyleSheet after style node has been reattached,
// so we need to check if the `renderable` reference the right style sheet and not
// rerender those rules.
if (rule.renderable && rule.renderable.parentStyleSheet === this.element.sheet) {
return rule.renderable;
}
var ruleStr = rule.toString();
if (!ruleStr) return false;
var nativeRule = _insertRule(nativeParent, ruleStr, index);
if (nativeRule === false) {
return false;
}
this.hasInsertedRules = true;
rule.renderable = nativeRule;
return nativeRule;
}
/**
* Delete a rule.
*/
;
_proto.deleteRule = function deleteRule(cssRule) {
var sheet = this.element.sheet;
var index = this.indexOf(cssRule);
if (index === -1) return false;
sheet.deleteRule(index);
return true;
}
/**
* Get index of a CSS Rule.
*/
;
_proto.indexOf = function indexOf(cssRule) {
var cssRules = this.element.sheet.cssRules;
for (var index = 0; index < cssRules.length; index++) {
if (cssRule === cssRules[index]) return index;
}
return -1;
}
/**
* Generate a new CSS rule and replace the existing one.
*
* Only used for some old browsers because they can't set a selector.
*/
;
_proto.replaceRule = function replaceRule(cssRule, rule) {
var index = this.indexOf(cssRule);
if (index === -1) return false;
this.element.sheet.deleteRule(index);
return this.insertRule(rule, index);
}
/**
* Get all rules elements.
*/
;
_proto.getRules = function getRules() {
return this.element.sheet.cssRules;
};
return DomRenderer;
}();
var instanceCounter = 0;
var Jss =
/*#__PURE__*/
function () {
function Jss(options) {
this.id = instanceCounter++;
this.version = "10.0.0";
this.plugins = new PluginsRegistry();
this.options = {
id: {
minify: false
},
createGenerateId: createGenerateId,
Renderer: isBrowser ? DomRenderer : null,
plugins: []
};
this.generateId = createGenerateId({
minify: false
});
for (var i = 0; i < plugins.length; i++) {
this.plugins.use(plugins[i], {
queue: 'internal'
});
}
this.setup(options);
}
/**
* Prepares various options, applies plugins.
* Should not be used twice on the same instance, because there is no plugins
* deduplication logic.
*/
var _proto = Jss.prototype;
_proto.setup = function setup(options) {
if (options === void 0) {
options = {};
}
if (options.createGenerateId) {
this.options.createGenerateId = options.createGenerateId;
}
if (options.id) {
this.options.id = _extends({}, this.options.id, options.id);
}
if (options.createGenerateId || options.id) {
this.generateId = this.options.createGenerateId(this.options.id);
}
if (options.insertionPoint != null) this.options.insertionPoint = options.insertionPoint;
if ('Renderer' in options) {
this.options.Renderer = options.Renderer;
} // eslint-disable-next-line prefer-spread
if (options.plugins) this.use.apply(this, options.plugins);
return this;
}
/**
* Create a Style Sheet.
*/
;
_proto.createStyleSheet = function createStyleSheet(styles, options) {
if (options === void 0) {
options = {};
}
var _options = options,
index = _options.index;
if (typeof index !== 'number') {
index = sheets.index === 0 ? 0 : sheets.index + 1;
}
var sheet = new StyleSheet(styles, _extends({}, options, {
jss: this,
generateId: options.generateId || this.generateId,
insertionPoint: this.options.insertionPoint,
Renderer: this.options.Renderer,
index: index
}));
this.plugins.onProcessSheet(sheet);
return sheet;
}
/**
* Detach the Style Sheet and remove it from the registry.
*/
;
_proto.removeStyleSheet = function removeStyleSheet(sheet) {
sheet.detach();
sheets.remove(sheet);
return this;
}
/**
* Create a rule without a Style Sheet.
*/
;
_proto.createRule = function createRule$$1(name, style, options) {
if (style === void 0) {
style = {};
}
if (options === void 0) {
options = {};
}
// Enable rule without name for inline styles.
if (typeof name === 'object') {
return this.createRule(undefined, name, style);
}
var ruleOptions = _extends({}, options, {
jss: this,
Renderer: this.options.Renderer
});
if (!ruleOptions.generateId) ruleOptions.generateId = this.generateId;
if (!ruleOptions.classes) ruleOptions.classes = {};
if (!ruleOptions.keyframes) ruleOptions.keyframes = {};
var rule = createRule(name, style, ruleOptions);
if (rule) this.plugins.onProcessRule(rule);
return rule;
}
/**
* Register plugin. Passed function will be invoked with a rule instance.
*/
;
_proto.use = function use() {
var _this = this;
for (var _len = arguments.length, plugins$$1 = new Array(_len), _key = 0; _key < _len; _key++) {
plugins$$1[_key] = arguments[_key];
}
plugins$$1.forEach(function (plugin) {
_this.plugins.use(plugin);
});
return this;
};
return Jss;
}();
/**
* Extracts a styles object with only props that contain function values.
*/
function getDynamicStyles(styles) {
var to = null;
for (var key in styles) {
var value = styles[key];
var type = typeof value;
if (type === 'function') {
if (!to) to = {};
to[key] = value;
} else if (type === 'object' && value !== null && !Array.isArray(value)) {
var extracted = getDynamicStyles(value);
if (extracted) {
if (!to) to = {};
to[key] = extracted;
}
}
}
return to;
}
/**
* SheetsManager is like a WeakMap which is designed to count StyleSheet
* instances and attach/detach automatically.
*/
var SheetsManager =
/*#__PURE__*/
function () {
function SheetsManager() {
this.length = 0;
this.sheets = new WeakMap();
}
var _proto = SheetsManager.prototype;
_proto.get = function get(key) {
var entry = this.sheets.get(key);
return entry && entry.sheet;
};
_proto.add = function add(key, sheet) {
if (this.sheets.has(key)) return;
this.length++;
this.sheets.set(key, {
sheet: sheet,
refs: 0
});
};
_proto.manage = function manage(key) {
var entry = this.sheets.get(key);
if (entry) {
if (entry.refs === 0) {
entry.sheet.attach();
}
entry.refs++;
return entry.sheet;
}
warning(false, "[JSS] SheetsManager: can't find sheet to manage");
return undefined;
};
_proto.unmanage = function unmanage(key) {
var entry = this.sheets.get(key);
if (entry) {
if (entry.refs > 0) {
entry.refs--;
if (entry.refs === 0) entry.sheet.detach();
}
} else {
warning(false, "SheetsManager: can't find sheet to unmanage");
}
};
_createClass(SheetsManager, [{
key: "size",
get: function get() {
return this.length;
}
}]);
return SheetsManager;
}();
/**
* A better abstraction over CSS.
*
* @copyright Oleg Isonen (Slobodskoi) / Isonen 2014-present
* @website https://github.com/cssinjs/jss
* @license MIT
*/
/**
* Export a constant indicating if this browser has CSSTOM support.
* https://developers.google.com/web/updates/2018/03/cssom
*/
var hasCSSTOMSupport = typeof CSS !== 'undefined' && CSS && 'number' in CSS;
/**
* Creates a new instance of Jss.
*/
var create = function create(options) {
return new Jss(options);
};
/**
* A global Jss instance.
*/
var index = create();
exports.hasCSSTOMSupport = hasCSSTOMSupport;
exports.create = create;
exports.default = index;
exports.getDynamicStyles = getDynamicStyles;
exports.toCssValue = toCssValue;
exports.createRule = createRule;
exports.SheetsRegistry = SheetsRegistry;
exports.SheetsManager = SheetsManager;
exports.RuleList = RuleList;
exports.sheets = sheets;
exports.createGenerateId = createGenerateId;
Object.defineProperty(exports, '__esModule', { value: true });
}));
//# sourceMappingURL=jss.js.map