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- {"ast":null,"code":"'use strict';\n\nObject.defineProperty(exports, \"__esModule\", {\n value: true\n});\n\nvar _createClass = function () {\n function defineProperties(target, props) {\n for (var i = 0; i < props.length; i++) {\n var descriptor = props[i];\n descriptor.enumerable = descriptor.enumerable || false;\n descriptor.configurable = true;\n if (\"value\" in descriptor) descriptor.writable = true;\n Object.defineProperty(target, descriptor.key, descriptor);\n }\n }\n\n return function (Constructor, protoProps, staticProps) {\n if (protoProps) defineProperties(Constructor.prototype, protoProps);\n if (staticProps) defineProperties(Constructor, staticProps);\n return Constructor;\n };\n}();\n\nvar _warning = require('warning');\n\nvar _warning2 = _interopRequireDefault(_warning);\n\nfunction _interopRequireDefault(obj) {\n return obj && obj.__esModule ? obj : {\n 'default': obj\n };\n}\n\nfunction _classCallCheck(instance, Constructor) {\n if (!(instance instanceof Constructor)) {\n throw new TypeError(\"Cannot call a class as a function\");\n }\n}\n/**\n * SheetsManager is like a WeakMap which is designed to count StyleSheet\n * instances and attach/detach automatically.\n */\n\n\nvar SheetsManager = function () {\n function SheetsManager() {\n _classCallCheck(this, SheetsManager);\n\n this.sheets = [];\n this.refs = [];\n this.keys = [];\n }\n\n _createClass(SheetsManager, [{\n key: 'get',\n value: function get(key) {\n var index = this.keys.indexOf(key);\n return this.sheets[index];\n }\n }, {\n key: 'add',\n value: function add(key, sheet) {\n var sheets = this.sheets,\n refs = this.refs,\n keys = this.keys;\n var index = sheets.indexOf(sheet);\n if (index !== -1) return index;\n sheets.push(sheet);\n refs.push(0);\n keys.push(key);\n return sheets.length - 1;\n }\n }, {\n key: 'manage',\n value: function manage(key) {\n var index = this.keys.indexOf(key);\n var sheet = this.sheets[index];\n if (this.refs[index] === 0) sheet.attach();\n this.refs[index]++;\n if (!this.keys[index]) this.keys.splice(index, 0, key);\n return sheet;\n }\n }, {\n key: 'unmanage',\n value: function unmanage(key) {\n var index = this.keys.indexOf(key);\n\n if (index === -1) {\n // eslint-ignore-next-line no-console\n (0, _warning2['default'])(false, \"SheetsManager: can't find sheet to unmanage\");\n return;\n }\n\n if (this.refs[index] > 0) {\n this.refs[index]--;\n if (this.refs[index] === 0) this.sheets[index].detach();\n }\n }\n }, {\n key: 'size',\n get: function get() {\n return this.keys.length;\n }\n }]);\n\n return SheetsManager;\n}();\n\nexports['default'] = SheetsManager;","map":null,"metadata":{},"sourceType":"script"}
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