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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/*\r\n* Licensed to the Apache Software Foundation (ASF) under one\r\n* or more contributor license agreements. See the NOTICE file\r\n* distributed with this work for additional information\r\n* regarding copyright ownership. The ASF licenses this file\r\n* to you under the Apache License, Version 2.0 (the\r\n* \"License\"); you may not use this file except in compliance\r\n* with the License. You may obtain a copy of the License at\r\n*\r\n* http://www.apache.org/licenses/LICENSE-2.0\r\n*\r\n* Unless required by applicable law or agreed to in writing,\r\n* software distributed under the License is distributed on an\r\n* \"AS IS\" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY\r\n* KIND, either express or implied. See the License for the\r\n* specific language governing permissions and limitations\r\n* under the License.\r\n*/\n/**\r\n * Calculate slider move result.\r\n * Usage:\r\n * (1) If both handle0 and handle1 are needed to be moved, set minSpan the same as\r\n * maxSpan and the same as `Math.abs(handleEnd[1] - handleEnds[0])`.\r\n * (2) If handle0 is forbidden to cross handle1, set minSpan as `0`.\r\n *\r\n * @param delta Move length.\r\n * @param handleEnds handleEnds[0] can be bigger then handleEnds[1].\r\n * handleEnds will be modified in this method.\r\n * @param extent handleEnds is restricted by extent.\r\n * extent[0] should less or equals than extent[1].\r\n * @param handleIndex Can be 'all', means that both move the two handleEnds.\r\n * @param minSpan The range of dataZoom can not be smaller than that.\r\n * If not set, handle0 and cross handle1. If set as a non-negative\r\n * number (including `0`), handles will push each other when reaching\r\n * the minSpan.\r\n * @param maxSpan The range of dataZoom can not be larger than that.\r\n * @return The input handleEnds.\r\n */\nexport default function sliderMove(delta, handleEnds, extent, handleIndex, minSpan, maxSpan) {\n delta = delta || 0;\n var extentSpan = extent[1] - extent[0];\n // Notice maxSpan and minSpan can be null/undefined.\n if (minSpan != null) {\n minSpan = restrict(minSpan, [0, extentSpan]);\n }\n if (maxSpan != null) {\n maxSpan = Math.max(maxSpan, minSpan != null ? minSpan : 0);\n }\n if (handleIndex === 'all') {\n var handleSpan = Math.abs(handleEnds[1] - handleEnds[0]);\n handleSpan = restrict(handleSpan, [0, extentSpan]);\n minSpan = maxSpan = restrict(handleSpan, [minSpan, maxSpan]);\n handleIndex = 0;\n }\n handleEnds[0] = restrict(handleEnds[0], extent);\n handleEnds[1] = restrict(handleEnds[1], extent);\n var originalDistSign = getSpanSign(handleEnds, handleIndex);\n handleEnds[handleIndex] += delta;\n // Restrict in extent.\n var extentMinSpan = minSpan || 0;\n var realExtent = extent.slice();\n originalDistSign.sign < 0 ? realExtent[0] += extentMinSpan : realExtent[1] -= extentMinSpan;\n handleEnds[handleIndex] = restrict(handleEnds[handleIndex], realExtent);\n // Expand span.\n var currDistSign;\n currDistSign = getSpanSign(handleEnds, handleIndex);\n if (minSpan != null && (currDistSign.sign !== originalDistSign.sign || currDistSign.span < minSpan)) {\n // If minSpan exists, 'cross' is forbidden.\n handleEnds[1 - handleIndex] = handleEnds[handleIndex] + originalDistSign.sign * minSpan;\n }\n // Shrink span.\n currDistSign = getSpanSign(handleEnds, handleIndex);\n if (maxSpan != null && currDistSign.span > maxSpan) {\n handleEnds[1 - handleIndex] = handleEnds[handleIndex] + currDistSign.sign * maxSpan;\n }\n return handleEnds;\n}\nfunction getSpanSign(handleEnds, handleIndex) {\n var dist = handleEnds[handleIndex] - handleEnds[1 - handleIndex];\n // If `handleEnds[0] === handleEnds[1]`, always believe that handleEnd[0]\n // is at left of handleEnds[1] for non-cross case.\n return {\n span: Math.abs(dist),\n sign: dist > 0 ? -1 : dist < 0 ? 1 : handleIndex ? -1 : 1\n };\n}\nfunction restrict(value, extend) {\n return Math.min(extend[1] != null ? extend[1] : Infinity, Math.max(extend[0] != null ? extend[0] : -Infinity, value));\n}","map":{"version":3,"names":["sliderMove","delta","handleEnds","extent","handleIndex","minSpan","maxSpan","extentSpan","restrict","Math","max","handleSpan","abs","originalDistSign","getSpanSign","extentMinSpan","realExtent","slice","sign","currDistSign","span","dist","value","extend","min","Infinity"],"sources":["E:/git/2021项目/安科院大屏/node_modules/echarts/lib/component/helper/sliderMove.js"],"sourcesContent":["\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*/\n\n\n/**\n * AUTO-GENERATED FILE. DO NOT MODIFY.\n */\n\n/*\r\n* Licensed to the Apache Software Foundation (ASF) under one\r\n* or more contributor license agreements. See the NOTICE file\r\n* distributed with this work for additional information\r\n* regarding copyright ownership. The ASF licenses this file\r\n* to you under the Apache License, Version 2.0 (the\r\n* \"License\"); you may not use this file except in compliance\r\n* with the License. You may obtain a copy of the License at\r\n*\r\n* http://www.apache.org/licenses/LICENSE-2.0\r\n*\r\n* Unless required by applicable law or agreed to in writing,\r\n* software distributed under the License is distributed on an\r\n* \"AS IS\" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY\r\n* KIND, either express or implied. See the License for the\r\n* specific language governing permissions and limitations\r\n* under the License.\r\n*/\n/**\r\n * Calculate slider move result.\r\n * Usage:\r\n * (1) If both handle0 and handle1 are needed to be moved, set minSpan the same as\r\n * maxSpan and the same as `Math.abs(handleEnd[1] - handleEnds[0])`.\r\n * (2) If handle0 is forbidden to cross handle1, set minSpan as `0`.\r\n *\r\n * @param delta Move length.\r\n * @param handleEnds handleEnds[0] can be bigger then handleEnds[1].\r\n * handleEnds will be modified in this method.\r\n * @param extent handleEnds is restricted by extent.\r\n * extent[0] should less or equals than extent[1].\r\n * @param handleIndex Can be 'all', means that both move the two handleEnds.\r\n * @param minSpan The range of dataZoom can not be smaller than that.\r\n * If not set, handle0 and cross handle1. 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