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14 KiB
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14 KiB
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{"ast":null,"code":"/*\n* Licensed to the Apache Software Foundation (ASF) under one\n* or more contributor license agreements. See the NOTICE file\n* distributed with this work for additional information\n* regarding copyright ownership. The ASF licenses this file\n* to you under the Apache License, Version 2.0 (the\n* \"License\"); you may not use this file except in compliance\n* with the License. You may obtain a copy of the License at\n*\n* http://www.apache.org/licenses/LICENSE-2.0\n*\n* Unless required by applicable law or agreed to in writing,\n* software distributed under the License is distributed on an\n* \"AS IS\" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY\n* KIND, either express or implied. See the License for the\n* specific language governing permissions and limitations\n* under the License.\n*/\n\n/**\n * AUTO-GENERATED FILE. DO NOT MODIFY.\n */\n\n/*\n* Licensed to the Apache Software Foundation (ASF) under one\n* or more contributor license agreements. See the NOTICE file\n* distributed with this work for additional information\n* regarding copyright ownership. The ASF licenses this file\n* to you under the Apache License, Version 2.0 (the\n* \"License\"); you may not use this file except in compliance\n* with the License. You may obtain a copy of the License at\n*\n* http://www.apache.org/licenses/LICENSE-2.0\n*\n* Unless required by applicable law or agreed to in writing,\n* software distributed under the License is distributed on an\n* \"AS IS\" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY\n* KIND, either express or implied. See the License for the\n* specific language governing permissions and limitations\n* under the License.\n*/\nvar ORIGIN_METHOD = '\\0__throttleOriginMethod';\nvar RATE = '\\0__throttleRate';\nvar THROTTLE_TYPE = '\\0__throttleType';\n;\n/**\n * @public\n * @param {(Function)} fn\n * @param {number} [delay=0] Unit: ms.\n * @param {boolean} [debounce=false]\n * true: If call interval less than `delay`, only the last call works.\n * false: If call interval less than `delay, call works on fixed rate.\n * @return {(Function)} throttled fn.\n */\n\nexport function throttle(fn, delay, debounce) {\n var currCall;\n var lastCall = 0;\n var lastExec = 0;\n var timer = null;\n var diff;\n var scope;\n var args;\n var debounceNextCall;\n delay = delay || 0;\n\n function exec() {\n lastExec = new Date().getTime();\n timer = null;\n fn.apply(scope, args || []);\n }\n\n var cb = function cb() {\n var cbArgs = [];\n\n for (var _i = 0; _i < arguments.length; _i++) {\n cbArgs[_i] = arguments[_i];\n }\n\n currCall = new Date().getTime();\n scope = this;\n args = cbArgs;\n var thisDelay = debounceNextCall || delay;\n var thisDebounce = debounceNextCall || debounce;\n debounceNextCall = null;\n diff = currCall - (thisDebounce ? lastCall : lastExec) - thisDelay;\n clearTimeout(timer); // Here we should make sure that: the `exec` SHOULD NOT be called later\n // than a new call of `cb`, that is, preserving the command order. Consider\n // calculating \"scale rate\" when roaming as an example. When a call of `cb`\n // happens, either the `exec` is called dierectly, or the call is delayed.\n // But the delayed call should never be later than next call of `cb`. Under\n // this assurance, we can simply update view state each time `dispatchAction`\n // triggered by user roaming, but not need to add extra code to avoid the\n // state being \"rolled-back\".\n\n if (thisDebounce) {\n timer = setTimeout(exec, thisDelay);\n } else {\n if (diff >= 0) {\n exec();\n } else {\n timer = setTimeout(exec, -diff);\n }\n }\n\n lastCall = currCall;\n };\n /**\n * Clear throttle.\n * @public\n */\n\n\n cb.clear = function () {\n if (timer) {\n clearTimeout(timer);\n timer = null;\n }\n };\n /**\n * Enable debounce once.\n */\n\n\n cb.debounceNextCall = function (debounceDelay) {\n debounceNextCall = debounceDelay;\n };\n\n return
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