[
  {
    "path": ".gitignore",
    "content": ".DS_Store\nnode_modules\ndist\n\n# local env files\n.env.local\n.env.*.local\n\n# Log files\nnpm-debug.log*\nyarn-debug.log*\nyarn-error.log*\n\n# Editor directories and files\n.idea\n.vscode\n*.suo\n*.ntvs*\n*.njsproj\n*.sln\n*.sw*\n"
  },
  {
    "path": ".npmrc",
    "content": "\nsass_binary_site=https://npm.taobao.org/mirrors/node-sass/\nphantomjs_cdnurl=https://npm.taobao.org/mirrors/phantomjs/\nelectron_mirror=https://npm.taobao.org/mirrors/electron/"
  },
  {
    "path": "LICENSE",
    "content": "MIT License\n\nCopyright (c) 2019 jeffrey\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in all\ncopies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\nSOFTWARE."
  },
  {
    "path": "README.md",
    "content": "# vue-simple-flowchart\n\n## Introduction\n\na lightweight flowchart editor for Vue.js, code with vanillaJS, \n### Note\nThis repository is not being actively maintained due to lack of time and interest. \n\nMy sincerest apologies to the open source community for allowing this project to stagnate. I hope it was useful for some of you as a jumping-off point.\n\n## Demo\n\n[https://jeffreyrn.github.io/vue-simple-flowchart/demo/](https://jeffreyrn.github.io/vue-simple-flowchart/demo/)\n\n### Feature\n\n- drag to connent two node, click to delete link\n- support add, delete, save node\n- reactive flowchart data\n  \n### Usage\n\ninstall via npm/yarn\n\n```\nyarn add vue-simple-flowchart\n```\n\nimport in script\n\n```js\nimport SimpleFlowchart from 'vue-simple-flowchart';\nimport 'vue-simple-flowchart/dist/vue-flowchart.css';\n```\nregister the component, and add below to html:\n```html\n<simple-flowchart :scene.sync=\"data\"></simple-flowchart>\n```\nthen set data for flowchart component, for example:\n```js\ndata() {\n    return {\n        data: {\n            centerX: 1024,\n                centerY: 140,\n                scale: 1,\n                nodes: [\n                    {\n                        id: 2,\n                        x: -700,\n                        y: -69,\n                        type: 'Action',\n                        label: 'test1',\n                    },\n                    {\n                        id: 4,\n                        x: -357,\n                        y: 80,\n                        type: 'Script',\n                        label: 'test2',\n                    },\n                    {\n                        id: 6,\n                        x: -557,\n                        y: 80,\n                        type: 'Rule',\n                        label: 'test3',\n                    }\n                    ],\n                    links: [\n                    {\n                        id: 3,\n                        from: 2, // node id the link start\n                        to: 4,  // node id the link end\n                    }\n                ]\n        },\n    };\n}\n```\n\n### Component\n\n#### Attributes\n\n- height, type: Number, default: 400\n\n#### Events\n\n- nodeClick, emit when node click, event = nodeID\n- nodeDelete: emit when node deleted, event = nodeID\n- linkBreak: emit when the selected link deleted, event = {id, from, to} (deleted link Object)\n- linkAdded: emit when new link added, event = {id, from, to} (new link Object)\n- canvasClick: emit when canvas click, event = { (Event Object) }\n\n## Project setup\n\n```\nyarn install\n```\n\n### Compiles and hot-reloads for development\n```\nyarn run serve\n```\n\n### Compiles and minifies for production\n```\nyarn run build\n```\n\n### Lints and fixes files\n```\nyarn run lint\n```\n\n## TODO\n\n- Add horizontal mode\n- Optimizition for large node array\n- Theme color configurable\n- Remove Console.log in build mode\n"
  },
  {
    "path": "babel.config.js",
    "content": "module.exports = {\n  presets: [\n    '@vue/app'\n  ]\n}\n"
  },
  {
    "path": "demo/css/app.34b94fa0.css",
    "content": "g[data-v-295297bd]{cursor:pointer}.flowchart-node[data-v-67208d28]{-webkit-box-sizing:border-box;-webkit-transform-origin:top left;background:#fff;border:none;box-sizing:border-box;cursor:move;height:80px;margin:0;opacity:.9;position:absolute;transform-origin:top left;width:80px;z-index:1}.flowchart-node .node-main[data-v-67208d28]{text-align:center}.flowchart-node .node-main .node-type[data-v-67208d28]{background:#f85;color:#fff;font-size:13px;padding:6px}.flowchart-node .node-main .node-label[data-v-67208d28]{font-size:13px}.flowchart-node .node-port[data-v-67208d28]{-webkit-transform:translate(-50%);background:#fff;border:1px solid #ccc;border-radius:100px;height:12px;left:50%;position:absolute;transform:translate(-50%);width:12px}.flowchart-node .node-port[data-v-67208d28]:hover{background:#f85;border:1px solid #f85}.flowchart-node .node-input[data-v-67208d28]{top:-8px}.flowchart-node .node-output[data-v-67208d28]{bottom:-8px}.flowchart-node .node-delete[data-v-67208d28]{background:#fff;border:1px solid #f85;border-radius:100px;color:#f85;cursor:pointer;font-size:12px;height:12px;position:absolute;right:-6px;text-align:center;top:-6px;width:12px}.flowchart-node .node-delete[data-v-67208d28]:hover{background:#f85;color:#fff}.selected[data-v-67208d28]{-webkit-box-shadow:0 0 0 2px #f85;box-shadow:0 0 0 2px #f85}.flowchart-container[data-v-8730bea4]{background:#ddd;margin:0;overflow:hidden;position:relative}.flowchart-container svg[data-v-8730bea4]{cursor:-webkit-grab;cursor:grab}#app{-moz-osx-font-smoothing:grayscale;-webkit-font-smoothing:antialiased;color:#2c3e50;font-family:Avenir,Helvetica,Arial,sans-serif;height:800px;margin:0;overflow:hidden;text-align:center}#app .tool-wrapper{position:relative}"
  },
  {
    "path": "demo/index.html",
    "content": "<!DOCTYPE html><html lang=en><head><meta charset=utf-8><meta http-equiv=X-UA-Compatible content=\"IE=edge\"><meta name=viewport content=\"width=device-width,initial-scale=1\"><link rel=icon href=favicon.ico><title>vue-simple-flowchart</title><link href=css/app.34b94fa0.css rel=preload as=style><link href=js/app.ea39b09e.js rel=preload as=script><link href=js/chunk-vendors.063ae98f.js rel=preload as=script><link href=css/app.34b94fa0.css rel=stylesheet></head><body><noscript><strong>We're sorry but vue-simple-flowchart doesn't work properly without JavaScript enabled. Please enable it to continue.</strong></noscript><div id=app></div><script src=js/chunk-vendors.063ae98f.js></script><script src=js/app.ea39b09e.js></script></body></html>"
  },
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    "path": "demo/js/app.ea39b09e.js",
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  {
    "path": "package.json",
    "content": "{\n  \"name\": \"vue-simple-flowchart\",\n  \"version\": \"0.1.8\",\n  \"private\": false,\n  \"main\": \"./dist/vue-flowchart.common.js\",\n  \"files\": [\n    \"dist\"\n  ],\n  \"scripts\": {\n    \"serve\": \"vue-cli-service serve\",\n    \"build\": \"vue-cli-service build --dest demo\",\n    \"lint\": \"vue-cli-service lint\",\n    \"build:bundle\": \"vue-cli-service build --target lib --name vue-flowchart ./src/index.js\"\n  },\n  \"license\": \"MIT\",\n  \"dependencies\": {\n    \"vue\": \"^2.5.17\"\n  },\n  \"devDependencies\": {\n    \"@vue/cli-plugin-babel\": \"^3.0.0\",\n    \"@vue/cli-plugin-eslint\": \"^3.0.0\",\n    \"@vue/cli-service\": \"^3.0.0\",\n    \"node-sass\": \"^4.9.3\",\n    \"sass-loader\": \"^7.1.0\",\n    \"vue-template-compiler\": \"^2.5.17\"\n  },\n  \"eslintConfig\": {\n    \"root\": true,\n    \"env\": {\n      \"node\": true\n    },\n    \"extends\": [\n      \"plugin:vue/essential\",\n      \"eslint:recommended\"\n    ],\n    \"rules\": {},\n    \"parserOptions\": {\n      \"parser\": \"babel-eslint\"\n    }\n  },\n  \"postcss\": {\n    \"plugins\": {\n      \"autoprefixer\": {}\n    }\n  },\n  \"browserslist\": [\n    \"> 1%\",\n    \"last 2 versions\",\n    \"not ie <= 8\"\n  ],\n  \"repository\": {\n    \"type\": \"git\",\n    \"url\": \"https://github.com/Jeffreyrn/vue-simple-flowchart\"\n  }\n}\n"
  },
  {
    "path": "public/index.html",
    "content": "<!DOCTYPE html>\n<html lang=\"en\">\n  <head>\n    <meta charset=\"utf-8\">\n    <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge\">\n    <meta name=\"viewport\" content=\"width=device-width,initial-scale=1.0\">\n    <link rel=\"icon\" href=\"<%= BASE_URL %>favicon.ico\">\n    <title>vue-simple-flowchart</title>\n  </head>\n  <body>\n    <noscript>\n      <strong>We're sorry but vue-simple-flowchart doesn't work properly without JavaScript enabled. Please enable it to continue.</strong>\n    </noscript>\n    <div id=\"app\"></div>\n    <!-- built files will be auto injected -->\n  </body>\n</html>\n"
  },
  {
    "path": "src/App.vue",
    "content": "<template>\n  <div id=\"app\">\n    <h1> simple flowchart</h1>\n    <div class=\"tool-wrapper\">\n      <select v-model=\"newNodeType\">\n        <option v-for=\"(item, index) in nodeCategory\" :key=\"index\" :value=\"index\">{{item}}</option>\n      </select>\n      <input type=\"text\" v-model=\"newNodeLabel\" placeholder=\"Input node label\">\n      <button @click=\"addNode\">ADD</button>\n    </div>\n    \n    <simple-flowchart :scene.sync=\"scene\" \n      @nodeClick=\"nodeClick\"\n      @nodeDelete=\"nodeDelete\"\n      @linkBreak=\"linkBreak\"\n      @linkAdded=\"linkAdded\"\n      @canvasClick=\"canvasClick\"\n      :height=\"800\"/>\n  </div>\n</template>\n\n<script>\nimport SimpleFlowchart from './components/SimpleFlowchart.vue'\n\nexport default {\n  name: 'app',\n  components: {\n    SimpleFlowchart\n  },\n  data() {\n    return {\n      scene: {\n        centerX: 1024,\n        centerY: 140,\n        scale: 1,\n        nodes: [\n          {\n            id: 2,\n            x: -700,\n            y: -69,\n            type: 'Action',\n            label: 'test1',\n          },\n          {\n            id: 4,\n            x: -357,\n            y: 80,\n            type: 'Script',\n            label: 'test2',\n          },\n          {\n            id: 6,\n            x: -557,\n            y: 80,\n            type: 'Rule',\n            label: 'test3',\n          }\n        ],\n        links: [\n          {\n            id: 3,\n            from: 2, // node id the link start\n            to: 4,  // node id the link end\n          }\n        ]\n      },\n      newNodeType: 0,\n      newNodeLabel: '',\n      nodeCategory:[\n        'rule',\n        'action',\n        'script',\n        'decision',\n        'fork',\n        'join',\n      ],\n    }\n  },\n  methods: {\n    canvasClick(e) {\n      console.log('canvas Click, event:', e)\n    },\n    addNode() {\n      let maxID = Math.max(0, ...this.scene.nodes.map((link) => {\n        return link.id\n      }))\n      this.scene.nodes.push({\n        id: maxID + 1,\n        x: -400,\n        y: 50,\n        type: this.nodeCategory[this.newNodeType],\n        label: this.newNodeLabel ? this.newNodeLabel: `test${maxID + 1}`,\n      })\n    },\n    nodeClick(id) {\n      console.log('node click', id);\n    },\n    nodeDelete(id) {\n      console.log('node delete', id);\n    },\n    linkBreak(id) {\n      console.log('link break', id);\n    },\n    linkAdded(link) {\n      console.log('new link added:', link);\n    }\n  }\n}\n</script>\n\n<style lang=\"scss\">\n#app {\n  font-family: 'Avenir', Helvetica, Arial, sans-serif;\n  -webkit-font-smoothing: antialiased;\n  -moz-osx-font-smoothing: grayscale;\n  text-align: center;\n  color: #2c3e50;\n  margin: 0;\n  overflow: hidden;\n  height: 800px;\n  .tool-wrapper {\n    position: relative;\n  }\n}\n</style>\n"
  },
  {
    "path": "src/assets/utilty/position.js",
    "content": "\n\n/**\n * @param element {HTMLElement}\n * @return {{top: number, left: number}}\n */\nfunction getOffsetRect (element) {\n  let box = element.getBoundingClientRect()\n\n  let scrollTop = window.pageYOffset\n  let scrollLeft = window.pageXOffset\n\n  let top = box.top + scrollTop\n  let left = box.left + scrollLeft\n\n  return {top: Math.round(top), left: Math.round(left)}\n}\n/**\n * @param event {MouseEvent}\n * @param element {HTMLElement}\n * @return {{x: number, y: number}}\n */\nfunction getMousePosition (element, event) {\n  let mouseX = event.pageX || event.clientX + document.documentElement.scrollLeft\n  let mouseY = event.pageY || event.clientY + document.documentElement.scrollTop\n\n  let offset = getOffsetRect(element)\n  let x = mouseX - offset.left\n  let y = mouseY - offset.top\n \n  return [x, y];\n}\n\nexport {\n  getMousePosition, getOffsetRect\n}\n"
  },
  {
    "path": "src/components/FlowchartLink.vue",
    "content": "<template>\n  <g @mouseover=\"handleMouseOver\"\n    @mouseleave=\"handleMouseLeave\">\n    <path :d=\"dAttr\" :style=\"pathStyle\"></path>\n    <a v-if=\"show.delete\" @click=\"deleteLink\">\n      <text \n        text-anchor=\"middle\" \n        :transform=\"arrowTransform\"\n        font-size=\"22\">&times;</text>\n    </a>\n    <path v-else d=\"M -1 -1 L 0 1 L 1 -1 z\"\n      :style=\"arrowStyle\"\n      :transform=\"arrowTransform\"></path>\n  </g>\n</template>\n\n<script>\nexport default {\n  name: 'FlowchartLink',\n  props: {\n    // start point position [x, y]\n    start: {\n      type: Array,\n      default() {\n        return [0, 0]\n      }\n    },\n    // end point position [x, y]\n    end: {\n      type: Array,\n      default() {\n        return [0, 0]\n      }\n    },\n    id: Number,\n  },\n  data() {\n    return {\n      show: {\n        delete: false,\n      }\n    }\n  },\n  methods: {\n    handleMouseOver() {\n      if (this.id) {\n        this.show.delete = true;\n      }\n    },\n    handleMouseLeave() {\n      this.show.delete = false;\n    },\n    caculateCenterPoint() {\n      // caculate arrow position: the center point between start and end\n      const dx = (this.end[0] - this.start[0]) / 2;\n      const dy = (this.end[1] - this.start[1]) / 2;\n      return [this.start[0] + dx, this.start[1] + dy];\n    },\n    caculateRotation() {\n      // caculate arrow rotation\n      const angle = -Math.atan2(this.end[0] - this.start[0], this.end[1] - this.start[1]);\n      const degree = angle * 180 / Math.PI;\n      return degree < 0 ? degree + 360 : degree;\n    },\n    deleteLink() {\n      this.$emit('deleteLink')\n    }\n  },\n  computed: {\n    pathStyle() {\n      return {\n        stroke: 'rgb(255, 136, 85)',\n        strokeWidth: 2.73205,\n        fill: 'none',\n      }\n    },\n    arrowStyle() {\n      return {\n        stroke: 'rgb(255, 136, 85)',\n        strokeWidth: 5.73205,\n        fill: 'none',\n      }\n    },\n    arrowTransform() {\n      const [arrowX, arrowY] = this.caculateCenterPoint();\n      const degree = this.caculateRotation()\n      return `translate(${arrowX}, ${arrowY}) rotate(${degree})`;\n    },\n    dAttr() {\n      let cx = this.start[0], cy = this.start[1], ex = this.end[0], ey = this.end[1];\n      let x1 = cx, y1 = cy + 50, x2 = ex, y2 = ey - 50;\n      return `M ${cx}, ${cy} C ${x1}, ${y1}, ${x2}, ${y2}, ${ex}, ${ey}`;\n    }\n  }\n}\n</script>\n\n<style scoped lang=\"scss\">\ng {\n  cursor: pointer;\n}\n</style>"
  },
  {
    "path": "src/components/FlowchartNode.vue",
    "content": "<template>\n  <div class=\"flowchart-node\" :style=\"nodeStyle\" \n    @mousedown=\"handleMousedown\"\n    @mouseover=\"handleMouseOver\"\n    @mouseleave=\"handleMouseLeave\"\n    v-bind:class=\"{selected: options.selected === id}\">\n    <div class=\"node-port node-input\"\n       @mousedown=\"inputMouseDown\"\n       @mouseup=\"inputMouseUp\">\n    </div>\n    <div class=\"node-main\">\n      <div v-text=\"type\" class=\"node-type\"></div>\n      <div v-text=\"label\" class=\"node-label\"></div>\n    </div>\n    <div class=\"node-port node-output\" \n      @mousedown=\"outputMouseDown\">\n    </div>\n    <div v-show=\"show.delete\" class=\"node-delete\">&times;</div>\n  </div>\n</template>\n\n<script>\nexport default {\n  name: 'FlowchartNode',\n  props: {\n    id: {\n      type: Number,\n      default: 1000,\n      validator(val) {\n        return typeof val === 'number'\n      }\n    },\n    x: {\n      type: Number,\n      default: 0,\n      validator(val) {\n        return typeof val === 'number'\n      }\n    },    \n    y: {\n      type: Number,\n      default: 0,\n      validator(val) {\n        return typeof val === 'number'\n      }\n    },\n    type: {\n      type: String,\n      default: 'Default'\n    },\n    label: {\n      type: String,\n      default: 'input name'\n    },\n    options: {\n      type: Object,\n      default() {\n        return {\n          centerX: 1024,\n          scale: 1,\n          centerY: 140,\n        }\n      }\n    }\n  },\n  data() {\n    return {\n      show: {\n        delete: false,\n      }\n    }\n  },\n  mounted() {\n  },\n  computed: {\n    nodeStyle() {\n      return {\n        top: this.options.centerY + this.y * this.options.scale + 'px', // remove: this.options.offsetTop + \n        left: this.options.centerX + this.x * this.options.scale + 'px', // remove: this.options.offsetLeft + \n        transform: `scale(${this.options.scale})`,\n      }\n    }\n  },\n  methods: {\n    handleMousedown(e) {\n      const target = e.target || e.srcElement;\n      // console.log(target);\n      if (target.className.indexOf('node-input') < 0 && target.className.indexOf('node-output') < 0) {\n        this.$emit('nodeSelected', e);\n      }\n      e.preventDefault();\n    },\n    handleMouseOver() {\n      this.show.delete = true;\n    },\n    handleMouseLeave() {\n      this.show.delete = false;\n    },\n    outputMouseDown(e) {\n      this.$emit('linkingStart')\n      e.preventDefault();\n    },\n    inputMouseDown(e) {\n      e.preventDefault();\n    },\n    inputMouseUp(e) {\n      this.$emit('linkingStop')\n      e.preventDefault();\n    },\n  }\n}\n</script>\n\n<!-- Add \"scoped\" attribute to limit CSS to this component only -->\n<style scoped lang=\"scss\">\n$themeColor: rgb(255, 136, 85);\n$portSize: 12;\n\n.flowchart-node {\n  margin: 0;\n  width: 80px;\n  height: 80px;\n  position: absolute;\n  box-sizing: border-box;\n  border: none;\n  background: white;\n  z-index: 1;\n  opacity: .9;\n  cursor: move;\n  transform-origin: top left;\n  .node-main {\n    text-align: center;\n    .node-type {\n      background: $themeColor;\n      color: white;\n      font-size: 13px;\n      padding: 6px;\n    }\n    .node-label {\n      font-size: 13px;\n    }\n  }\n  .node-port {\n    position: absolute;\n    width: #{$portSize}px;\n    height: #{$portSize}px;\n    left: 50%;\n    transform: translate(-50%);\n    border: 1px solid #ccc;\n    border-radius: 100px;\n    background: white;\n    &:hover {\n      background: $themeColor;\n      border: 1px solid $themeColor;\n    }\n  }\n  .node-input {\n    top: #{-2+$portSize/-2}px;\n  }\n  .node-output {\n    bottom: #{-2+$portSize/-2}px;\n  }\n  .node-delete {\n    position: absolute;\n    right: -6px;\n    top: -6px;\n    font-size: 12px;\n    width: 12px;\n    height: 12px;\n    color: $themeColor;\n    cursor: pointer;\n    background: white;\n    border: 1px solid $themeColor;\n    border-radius: 100px;\n    text-align: center;\n    &:hover{\n      background: $themeColor;\n      color: white;\n    }\n  }\n}\n.selected {\n  box-shadow: 0 0 0 2px $themeColor;\n}\n</style>\n"
  },
  {
    "path": "src/components/SimpleFlowchart.vue",
    "content": "<template>\n  <div class=\"flowchart-container\" \n    @mousemove=\"handleMove\" \n    @mouseup=\"handleUp\"\n    @mousedown=\"handleDown\">\n    <svg width=\"100%\" :height=\"`${height}px`\">\n      <flowchart-link v-bind.sync=\"link\" \n        v-for=\"(link, index) in lines\" \n        :key=\"`link${index}`\"\n        @deleteLink=\"linkDelete(link.id)\">\n      </flowchart-link>\n    </svg>\n    <flowchart-node v-bind.sync=\"node\" \n      v-for=\"(node, index) in scene.nodes\" \n      :key=\"`node${index}`\"\n      :options=\"nodeOptions\"\n      @linkingStart=\"linkingStart(node.id)\"\n      @linkingStop=\"linkingStop(node.id)\"\n      @nodeSelected=\"nodeSelected(node.id, $event)\">\n    </flowchart-node>\n  </div>\n</template>\n\n<script>\nimport FlowchartLink from './FlowchartLink.vue';\nimport FlowchartNode from './FlowchartNode.vue';\nimport { getMousePosition } from '../assets/utilty/position';\n\nexport default {\n  name: 'VueFlowchart',\n  props: {\n    scene: {\n      type: Object,\n      default() {\n        return {\n          centerX: 1024,\n          scale: 1,\n          centerY: 140,\n          nodes: [],\n          links: [],\n        }\n      }\n    },\n    height: {\n      type: Number,\n      default: 400,\n    },\n  },\n  data() {\n    return {\n      action: {\n        linking: false,\n        dragging: false,\n        scrolling: false,\n        selected: 0,\n      },\n      mouse: {\n        x: 0,\n        y: 0,\n        lastX: 0,\n        lastY: 0,\n      },\n      draggingLink: null,\n      rootDivOffset: {\n        top: 0,\n        left: 0\n      },\n    };\n  },\n  components: {\n    FlowchartLink,\n    FlowchartNode,\n  },\n  computed: {\n    nodeOptions() {\n      return {\n        centerY: this.scene.centerY,\n        centerX: this.scene.centerX,\n        scale: this.scene.scale,\n        offsetTop: this.rootDivOffset.top,\n        offsetLeft: this.rootDivOffset.left,\n        selected: this.action.selected,\n      }\n    },\n    lines() {\n      const lines = this.scene.links.map((link) => {\n        const fromNode = this.findNodeWithID(link.from)\n        const toNode = this.findNodeWithID(link.to)\n        let x, y, cy, cx, ex, ey;\n        x = this.scene.centerX + fromNode.x;\n        y = this.scene.centerY + fromNode.y;\n        [cx, cy] = this.getPortPosition('bottom', x, y);\n        x = this.scene.centerX + toNode.x;\n        y = this.scene.centerY + toNode.y;\n        [ex, ey] = this.getPortPosition('top', x, y);\n        return { \n          start: [cx, cy], \n          end: [ex, ey],\n          id: link.id,\n        };\n      })\n      if (this.draggingLink) {\n        let x, y, cy, cx;\n        const fromNode = this.findNodeWithID(this.draggingLink.from)\n        x = this.scene.centerX + fromNode.x;\n        y = this.scene.centerY + fromNode.y;\n        [cx, cy] = this.getPortPosition('bottom', x, y);\n        // push temp dragging link, mouse cursor postion = link end postion \n        lines.push({ \n          start: [cx, cy], \n          end: [this.draggingLink.mx, this.draggingLink.my],\n        })\n      }\n      return lines;\n    }\n  },\n  mounted() {\n    this.rootDivOffset.top = this.$el ? this.$el.offsetTop : 0;\n    this.rootDivOffset.left = this.$el ? this.$el.offsetLeft : 0;\n    // console.log(22222, this.rootDivOffset);\n  },\n  methods: {\n    findNodeWithID(id) {\n      return this.scene.nodes.find((item) => {\n          return id === item.id\n      })\n    },\n    getPortPosition(type, x, y) {\n      if (type === 'top') {\n        return [x + 40, y];\n      }\n      else if (type === 'bottom') {\n        return [x + 40, y + 80];\n      }\n    },\n    linkingStart(index) {\n      this.action.linking = true;\n      this.draggingLink = {\n        from: index,\n        mx: 0,\n        my: 0,\n      };\n    },\n    linkingStop(index) {\n      // add new Link\n      if (this.draggingLink && this.draggingLink.from !== index) {\n        // check link existence\n        const existed = this.scene.links.find((link) => {\n          return link.from === this.draggingLink.from && link.to === index;\n        })\n        if (!existed) {\n          let maxID = Math.max(0, ...this.scene.links.map((link) => {\n            return link.id\n          }))\n          const newLink = {\n            id: maxID + 1,\n            from: this.draggingLink.from,\n            to: index,\n          };\n          this.scene.links.push(newLink)\n          this.$emit('linkAdded', newLink)\n        }\n      }\n      this.draggingLink = null\n    },\n    linkDelete(id) {\n      const deletedLink = this.scene.links.find((item) => {\n          return item.id === id;\n      });\n      if (deletedLink) {\n        this.scene.links = this.scene.links.filter((item) => {\n            return item.id !== id;\n        });\n        this.$emit('linkBreak', deletedLink);\n      }\n    },\n    nodeSelected(id, e) {\n      this.action.dragging = id;\n      this.action.selected = id;\n      this.$emit('nodeClick', id);\n      this.mouse.lastX = e.pageX || e.clientX + document.documentElement.scrollLeft\n      this.mouse.lastY = e.pageY || e.clientY + document.documentElement.scrollTop\n    },\n    handleMove(e) {\n      if (this.action.linking) {\n        [this.mouse.x, this.mouse.y] = getMousePosition(this.$el, e);\n        [this.draggingLink.mx, this.draggingLink.my] = [this.mouse.x, this.mouse.y];\n      }\n      if (this.action.dragging) {\n        this.mouse.x = e.pageX || e.clientX + document.documentElement.scrollLeft\n        this.mouse.y = e.pageY || e.clientY + document.documentElement.scrollTop\n        let diffX = this.mouse.x - this.mouse.lastX;\n        let diffY = this.mouse.y - this.mouse.lastY;\n\n        this.mouse.lastX = this.mouse.x;\n        this.mouse.lastY = this.mouse.y;\n        this.moveSelectedNode(diffX, diffY);\n      }\n      if (this.action.scrolling) {\n        [this.mouse.x, this.mouse.y] = getMousePosition(this.$el, e);\n        let diffX = this.mouse.x - this.mouse.lastX;\n        let diffY = this.mouse.y - this.mouse.lastY;\n\n        this.mouse.lastX = this.mouse.x;\n        this.mouse.lastY = this.mouse.y;\n\n        this.scene.centerX += diffX;\n        this.scene.centerY += diffY;\n\n        // this.hasDragged = true\n      }\n    },\n    handleUp(e) {\n      const target = e.target || e.srcElement;\n      if (this.$el.contains(target)) {\n        if (typeof target.className !== 'string' || target.className.indexOf('node-input') < 0) {\n          this.draggingLink = null;\n        }\n        if (typeof target.className === 'string' && target.className.indexOf('node-delete') > -1) {\n          // console.log('delete2', this.action.dragging);\n          this.nodeDelete(this.action.dragging);\n        }\n      }\n      this.action.linking = false;\n      this.action.dragging = null;\n      this.action.scrolling = false;\n    },\n    handleDown(e) {\n      const target = e.target || e.srcElement;\n      // console.log('for scroll', target, e.keyCode, e.which)\n      if ((target === this.$el || target.matches('svg, svg *')) && e.which === 1) {\n        this.action.scrolling = true;\n        [this.mouse.lastX, this.mouse.lastY] = getMousePosition(this.$el, e);\n        this.action.selected = null; // deselectAll\n      }\n      this.$emit('canvasClick', e);\n    },\n    moveSelectedNode(dx, dy) {\n      let index = this.scene.nodes.findIndex((item) => {\n        return item.id === this.action.dragging\n      })\n      let left = this.scene.nodes[index].x + dx / this.scene.scale;\n      let top = this.scene.nodes[index].y + dy / this.scene.scale;\n      this.$set(this.scene.nodes, index, Object.assign(this.scene.nodes[index], {\n        x: left,\n        y: top,\n      }));\n    },\n    nodeDelete(id) {\n      this.scene.nodes = this.scene.nodes.filter((node) => {\n        return node.id !== id;\n      })\n      this.scene.links = this.scene.links.filter((link) => {\n        return link.from !== id && link.to !== id\n      })\n      this.$emit('nodeDelete', id)\n    }\n  },\n}\n</script>\n\n<!-- Add \"scoped\" attribute to limit CSS to this component only -->\n<style scoped lang=\"scss\">\n.flowchart-container {\n  margin: 0;\n  background: #ddd;\n  position: relative;\n  overflow: hidden;\n  svg {\n    cursor: grab;\n  }\n}\n</style>\n"
  },
  {
    "path": "src/index.js",
    "content": "\nimport SimpleFlowchart from './components/SimpleFlowchart.vue'\nexport default SimpleFlowchart;"
  },
  {
    "path": "src/main.js",
    "content": "import Vue from 'vue'\nimport App from './App.vue'\n\nVue.config.productionTip = false\n\nnew Vue({\n  render: h => h(App)\n}).$mount('#app')\n"
  },
  {
    "path": "vue.config.js",
    "content": "module.exports = {\n    baseUrl: './'\n    // options...\n}"
  }
]