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]{4}/gm,this._reKey=t(!0,!0),this._handleKey=this._handleKey.bind(this),this.setElement(e)}function t(e,t){return new RegExp(\"^(?:Enter\"+(e?\"|Tab\":\"\")+\"|[io\"+(t?\"\\\"'`*_([{<>}\\\\])\":\"\")+\"])$\")}function x(e,t,n,i){if(e.value=t,e.selectionStart=n,e.selectionEnd=3<arguments.length?i:n,\"InputEvent\"in window)try{var s=new InputEvent(\"input\");e.dispatchEvent(s)}catch(i){}}return e.prototype={constructor:e,getElement:function(){return this._elem},setElement:function(e){this._elem&&this._elem.removeEventListener(\"keydown\",this._handleKey),(this._elem=e).addEventListener(\"keydown\",this._handleKey)},getValue:function(){return this._elem.value},setValue:function(e){this._elem.value=e},getIndent:function(){return this._indent},setIndent:function(e){this._indent=\"number\"==typeof e?new Array(e+1).join(\" \"):(e+\"\").replace(/[^ \\t]/g,\" \"),this._reOutdent=new RegExp(\"^\"+this._indent,\"mg\")},isTabUsed:function(){return this._useTab},useTab:function(){this._useTab=!0,this._reKey=t(!0,this._useInline)},ignoreTab:function(){this._useTab=!1,this._reKey=t(!1,this._useInline)},isInlineEnabled:function(){return this._useInline},enableInline:function(){this._useInline=!0,this._reKey=t(this._useTab,!0)},disableInline:function(){this._useInline=!1,this._reKey=t(this._useTab,!1)},destroy:function(){this._elem.removeEventListener(\"keydown\",this._handleKey),this._elem=this._reKey=this._handleKey=this._indent=this._reOutdent=null},_handleKey:function(e){if(!e.defaultPrevented&&this._reKey.test(e.key)){var t=e.target.value.substring(0,e.target.selectionStart),n=e.target.value.substring(e.target.selectionStart,e.target.selectionEnd),i=e.target.value.substring(e.target.selectionEnd);if(\"Enter\"!==e.key||e.ctrlKey||e.altKey||e.metaKey)if(\"Tab\"===e.key&&!e.shiftKey||\"i\"===e.key&&e[a])!function(e,t,n,i,s){var r=t.length,l=t.lastIndexOf(\"\\n\")+1;l<r&&(n=t.substring(l)+n,t=t.substring(0,l));(l<r||!n)&&(r+=s.length);n?n=n.replace(d,s):t+=s;x(e,t+n+i,r,n?l+n.length:r)}(this._elem,t,n,i,this._indent);else if(\"Tab\"===e.key&&e.shiftKey||\"o\"===e.key&&e[a])!function(e,t,n,i,s,r){var l=t.length,h=t.lastIndexOf(\"\\n\")+1;h<l&&(n=t.substring(h)+n,t=t.substring(0,h),n.substring(0,s.length)===s&&(l-=s.length));n=n.replace(r,\"\"),x(e,t+n+i,l,h+n.length)}(this._elem,t,n,i,this._indent,this._reOutdent);else{if(!o.test(e.key))return;s=this._elem,r=t,l=n,h=i,u=e.key,l||u in v||h.charAt(0)!==u?!l&&(\"'\"===u||u in K)?x(s,r+u+h,r.length+1):!l&&u in b&&b[u].test(r)?x(s,r+u+\"language\\n\"+u+u+u+(\"\\n\"!==h.charAt(0)?\"\\n\":\"\")+h,r.length+1,r.length+9):x(s,r+(K[u]||u)+l+(v[u]||u)+h,r.length+1,r.length+1+l.length):x(s,r+(f.test(u)?u+u:\"\")+h,r.length+1)}else!function(e,t,n,i,s){var r=n?null:(l=t,h=l.lastIndexOf(\"\\n\")+1,u=l.substring(h),a=_.exec(u),{line:u,offset:h,prefix:a&&a[0]});var l,h,u,a;!n&&r.prefix?s||r.prefix!==r.line?!s&&(d=r.prefix,c.test(d))?t+=\"\\n\"+r.prefix.replace(p,function(e,t){return parseInt(t)+1+\".\"}):t+=\"\\n\"+(o=r.prefix,f=s,o.replace(f?y:g,\" \")):t=t.substring(0,r.offset)+r.prefix.replace(m,\"\"):t+=\"\\n\";var o,f;var d;x(e,t+i,t.length)}(this._elem,t,n,i,e.shiftKey);e.preventDefault()}var s,r,l,h,u}},e});\n//# sourceMappingURL=mdarea.min.map\n","module.exports = flarum.core.compat['helpers/icon'];","/*! https://mths.be/startswith v0.2.0 by @mathias */\nif (!String.prototype.startsWith) {\n  Object.defineProperty(String.prototype, 'startsWith', {\n    value: function(search, pos) {\n      pos = !pos || pos < 0 ? 0 : +pos;\n      return this.substring(pos, pos + search.length) === search;\n    }\n  });\n}\n\nif (!String.prototype.endsWith) {\n  String.prototype.endsWith = function(search, this_len) {\n    if (this_len === undefined || this_len > this.length) {\n      this_len = this.length;\n    }\n    return this.substring(this_len - search.length, this_len) === search;\n  };\n}\n","export default function _inheritsLoose(subClass, superClass) {\n  subClass.prototype = Object.create(superClass.prototype);\n  subClass.prototype.constructor = subClass;\n  subClass.__proto__ = superClass;\n}","import Component from 'flarum/Component';\n\nconst modifierKey = navigator.userAgent.match(/Macintosh/) ? 'Meta' : 'Control';\n\nexport default class MarkdownToolbar extends Component {\n  config(isInitialized) {\n    if (isInitialized) return;\n\n    const field = document.getElementById(this.props.for);\n\n    field.addEventListener('keydown', this.shortcut.bind(this));\n  }\n\n  view() {\n    return <div id=\"MarkdownToolbar\" data-for={this.props.for} style={{ display: 'inline-block' }}>\n      {this.props.children}\n    </div>;\n  }\n\n  shortcut(event) {\n    if ((event.metaKey && modifierKey === 'Meta') || (event.ctrlKey && modifierKey === 'Control')) {\n      const button = this.element.querySelector(`[data-hotkey=\"${event.key}\"]`);\n\n      if (button) {\n        button.click();\n        event.preventDefault()\n      }\n    }\n  }\n}\n","export default function _extends() {\n  _extends = Object.assign || function (target) {\n    for (var i = 1; i < arguments.length; i++) {\n      var source = arguments[i];\n\n      for (var key in source) {\n        if (Object.prototype.hasOwnProperty.call(source, key)) {\n          target[key] = source[key];\n        }\n      }\n    }\n\n    return target;\n  };\n\n  return _extends.apply(this, arguments);\n}","/*\n * Original Copyright GitHub, Inc. Licensed under the MIT License.\n * See license text at https://github.com/github/markdown-toolbar-element/blob/master/LICENSE.\n */\n\nexport let canInsertText = null;\n\nexport default (textarea, { text, selectionStart, selectionEnd }) => {\n  const originalSelectionStart = textarea.selectionStart;\n  const before = textarea.value.slice(0, originalSelectionStart);\n  const after = textarea.value.slice(textarea.selectionEnd);\n\n  if (canInsertText === null || canInsertText === true) {\n    textarea.contentEditable = 'true';\n    try {\n      canInsertText = document.execCommand('insertText', false, text);\n    }\n    catch (error) {\n      canInsertText = false;\n    }\n    textarea.contentEditable = 'false';\n  }\n  if (canInsertText && !textarea.value.slice(0, textarea.selectionStart).endsWith(text)) {\n    canInsertText = false;\n  }\n  if (!canInsertText) {\n    try {\n      document.execCommand('ms-beginUndoUnit');\n    }\n    catch (e) {\n      // Do nothing.\n    }\n    textarea.value = before + text + after;\n    try {\n      document.execCommand('ms-endUndoUnit');\n    }\n    catch (e) {\n      // Do nothing.\n    }\n\n    // fire custom event, works on IE\n    const event = document.createEvent('Event');\n\n    event.initEvent('input', true, true);\n\n    textarea.dispatchEvent(event);\n  }\n  if (selectionStart != null && selectionEnd != null) {\n    textarea.setSelectionRange(selectionStart, selectionEnd);\n  }\n  else {\n    textarea.setSelectionRange(originalSelectionStart, textarea.selectionEnd);\n  }\n};\n","/*\n * Original Copyright GitHub, Inc. Licensed under the MIT License.\n * See license text at https://github.com/github/markdown-toolbar-element/blob/master/LICENSE.\n */\n\nexport function isMultipleLines(string) {\n  return string.trim().split('\\n').length > 1;\n}\n\nexport function repeat(string, n) {\n  return Array(n + 1).join(string);\n}\n\nexport function wordSelectionStart(text, i) {\n  let index = i;\n\n  while (text[index] && text[index - 1] != null && !text[index - 1].match(/\\s/)) {\n    index--;\n  }\n\n  return index;\n}\n\nexport function wordSelectionEnd(text, i, multiline) {\n  let index = i;\n  const breakpoint = multiline ? /\\n/ : /\\s/;\n\n  while (text[index] && !text[index].match(breakpoint)) {\n    index++;\n  }\n\n  return index;\n}\n\nexport function expandSelectedText(textarea, prefixToUse, suffixToUse) {\n  let multiline = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;\n\n  if (textarea.selectionStart === textarea.selectionEnd) {\n    textarea.selectionStart = wordSelectionStart(textarea.value, textarea.selectionStart);\n    textarea.selectionEnd = wordSelectionEnd(textarea.value, textarea.selectionEnd, multiline);\n  } else {\n    const expandedSelectionStart = textarea.selectionStart - prefixToUse.length;\n    const expandedSelectionEnd = textarea.selectionEnd + suffixToUse.length;\n    const beginsWithPrefix = textarea.value.slice(expandedSelectionStart, textarea.selectionStart) === prefixToUse;\n    const endsWithSuffix = textarea.value.slice(textarea.selectionEnd, expandedSelectionEnd) === suffixToUse;\n\n    if (beginsWithPrefix && endsWithSuffix) {\n      textarea.selectionStart = expandedSelectionStart;\n      textarea.selectionEnd = expandedSelectionEnd;\n    }\n  }\n\n  return textarea.value.slice(textarea.selectionStart, textarea.selectionEnd);\n}\n\nexport function newlinesToSurroundSelectedText(textarea) {\n  const beforeSelection = textarea.value.slice(0, textarea.selectionStart);\n  const afterSelection = textarea.value.slice(textarea.selectionEnd);\n  const breaksBefore = beforeSelection.match(/\\n*$/);\n  const breaksAfter = afterSelection.match(/^\\n*/);\n  const newlinesBeforeSelection = breaksBefore ? breaksBefore[0].length : 0;\n  const newlinesAfterSelection = breaksAfter ? breaksAfter[0].length : 0;\n  let newlinesToAppend;\n  let newlinesToPrepend;\n\n  if (beforeSelection.match(/\\S/) && newlinesBeforeSelection < 2) {\n    newlinesToAppend = repeat('\\n', 2 - newlinesBeforeSelection);\n  }\n\n  if (afterSelection.match(/\\S/) && newlinesAfterSelection < 2) {\n    newlinesToPrepend = repeat('\\n', 2 - newlinesAfterSelection);\n  }\n\n  if (newlinesToAppend == null) {\n    newlinesToAppend = '';\n  }\n\n  if (newlinesToPrepend == null) {\n    newlinesToPrepend = '';\n  }\n\n  return {\n    newlinesToAppend,\n    newlinesToPrepend\n  };\n}\n\nexport const blockStyle = (textarea, arg) => {\n  let newlinesToAppend;\n  let newlinesToPrepend;\n  const { prefix, suffix, blockPrefix, blockSuffix, replaceNext, prefixSpace, scanFor, surroundWithNewlines } = arg;\n  const originalSelectionStart = textarea.selectionStart;\n  const originalSelectionEnd = textarea.selectionEnd;\n  let selectedText = textarea.value.slice(textarea.selectionStart, textarea.selectionEnd);\n  let prefixToUse = isMultipleLines(selectedText) && blockPrefix.length > 0 ? `${blockPrefix}\\n` : prefix;\n  let suffixToUse = isMultipleLines(selectedText) && blockSuffix.length > 0 ? `\\n${blockSuffix}` : suffix;\n\n  if (prefixSpace) {\n    const beforeSelection = textarea.value[textarea.selectionStart - 1];\n    if (textarea.selectionStart !== 0 && beforeSelection != null && !beforeSelection.match(/\\s/)) {\n      prefixToUse = ` ${prefixToUse}`;\n    }\n  }\n\n  selectedText = expandSelectedText(textarea, prefixToUse, suffixToUse, arg.multiline);\n  let selectionStart = textarea.selectionStart;\n  let selectionEnd = textarea.selectionEnd;\n  const hasReplaceNext = replaceNext.length > 0 && suffixToUse.indexOf(replaceNext) > -1 && selectedText.length > 0;\n\n  if (surroundWithNewlines) {\n    const ref = newlinesToSurroundSelectedText(textarea);\n    newlinesToAppend = ref.newlinesToAppend;\n    newlinesToPrepend = ref.newlinesToPrepend;\n    prefixToUse = newlinesToAppend + prefix;\n    suffixToUse += newlinesToPrepend;\n  }\n\n  if (selectedText.startsWith(prefixToUse) && selectedText.endsWith(suffixToUse)) {\n    const replacementText = selectedText.slice(prefixToUse.length, selectedText.length - suffixToUse.length);\n    if (originalSelectionStart === originalSelectionEnd) {\n      let position = originalSelectionStart - prefixToUse.length;\n      position = Math.max(position, selectionStart);\n      position = Math.min(position, selectionStart + replacementText.length);\n      selectionStart = selectionEnd = position;\n    }\n    else {\n      selectionEnd = selectionStart + replacementText.length;\n    }\n    return { text: replacementText, selectionStart, selectionEnd };\n  }\n  else if (!hasReplaceNext) {\n    let replacementText = prefixToUse + selectedText + suffixToUse;\n    selectionStart = originalSelectionStart + prefixToUse.length;\n    selectionEnd = originalSelectionEnd + prefixToUse.length;\n    const whitespaceEdges = selectedText.match(/^\\s*|\\s*$/g);\n    if (arg.trimFirst && whitespaceEdges) {\n      const leadingWhitespace = whitespaceEdges[0] || '';\n      const trailingWhitespace = whitespaceEdges[1] || '';\n      replacementText = leadingWhitespace + prefixToUse + selectedText.trim() + suffixToUse + trailingWhitespace;\n      selectionStart += leadingWhitespace.length;\n      selectionEnd -= trailingWhitespace.length;\n    }\n    return { text: replacementText, selectionStart, selectionEnd };\n  }\n  else if (scanFor.length > 0 && selectedText.match(scanFor)) {\n    suffixToUse = suffixToUse.replace(replaceNext, selectedText);\n    const replacementText = prefixToUse + suffixToUse;\n    selectionStart = selectionEnd = selectionStart + prefixToUse.length;\n    return { text: replacementText, selectionStart, selectionEnd };\n  }\n  else {\n    const replacementText = prefixToUse + selectedText + suffixToUse;\n    selectionStart = selectionStart + prefixToUse.length + selectedText.length + suffixToUse.indexOf(replaceNext);\n    selectionEnd = selectionStart + replaceNext.length;\n    return { text: replacementText, selectionStart, selectionEnd };\n  }\n}\n\nexport const multilineStyle = (textarea, arg) => {\n  const { prefix, suffix, surroundWithNewlines } = arg;\n  let text = textarea.value.slice(textarea.selectionStart, textarea.selectionEnd);\n  let selectionStart = textarea.selectionStart;\n  let selectionEnd = textarea.selectionEnd;\n  const lines = text.split('\\n');\n  const undoStyle = lines.every(line => line.startsWith(prefix) && line.endsWith(suffix));\n  if (undoStyle) {\n    text = lines.map(line => line.slice(prefix.length, line.length - suffix.length)).join('\\n');\n    selectionEnd = selectionStart + text.length;\n  }\n  else {\n    text = lines.map(line => prefix + line + suffix).join('\\n');\n    if (surroundWithNewlines) {\n      const { newlinesToAppend, newlinesToPrepend } = newlinesToSurroundSelectedText(textarea);\n      selectionStart += newlinesToAppend.length;\n      selectionEnd = selectionStart + text.length;\n      text = newlinesToAppend + text + newlinesToPrepend;\n    }\n  }\n  return { text, selectionStart, selectionEnd };\n}\n\nexport const orderedList = (textarea) => {\n  const orderedListRegex = /^\\d+\\.\\s+/;\n  const noInitialSelection = textarea.selectionStart === textarea.selectionEnd;\n  let selectionEnd;\n  let selectionStart;\n  let text = textarea.value.slice(textarea.selectionStart, textarea.selectionEnd);\n  let textToUnstyle = text;\n  let lines = text.split('\\n');\n  let startOfLine, endOfLine;\n  if (noInitialSelection) {\n    const linesBefore = textarea.value.slice(0, textarea.selectionStart).split(/\\n/);\n    startOfLine = textarea.selectionStart - linesBefore[linesBefore.length - 1].length;\n    endOfLine = wordSelectionEnd(textarea.value, textarea.selectionStart, true);\n    textToUnstyle = textarea.value.slice(startOfLine, endOfLine);\n  }\n  const linesToUnstyle = textToUnstyle.split('\\n');\n  const undoStyling = linesToUnstyle.every(line => orderedListRegex.test(line));\n  if (undoStyling) {\n    lines = linesToUnstyle.map(line => line.replace(orderedListRegex, ''));\n    text = lines.join('\\n');\n    if (noInitialSelection && startOfLine && endOfLine) {\n      const lengthDiff = linesToUnstyle[0].length - lines[0].length;\n      selectionStart = selectionEnd = textarea.selectionStart - lengthDiff;\n      textarea.selectionStart = startOfLine;\n      textarea.selectionEnd = endOfLine;\n    }\n  }\n  else {\n    lines = (function () {\n      let i;\n      let len;\n      let index;\n      const results = [];\n      for (index = i = 0, len = lines.length; i < len; index = ++i) {\n        const line = lines[index];\n        results.push(`${index + 1}. ${line}`);\n      }\n      return results;\n    })();\n    text = lines.join('\\n');\n    const { newlinesToAppend, newlinesToPrepend } = newlinesToSurroundSelectedText(textarea);\n    selectionStart = textarea.selectionStart + newlinesToAppend.length;\n    selectionEnd = selectionStart + text.length;\n    if (noInitialSelection)\n      selectionStart = selectionEnd;\n    text = newlinesToAppend + text + newlinesToPrepend;\n  }\n  return { text, selectionStart, selectionEnd };\n}\n","/*\n * Original Copyright GitHub, Inc. Licensed under the MIT License.\n * See license text at https://github.com/github/markdown-toolbar-element/blob/master/LICENSE.\n */\n\nimport insertText from './insertText';\nimport { blockStyle, isMultipleLines, multilineStyle, orderedList } from './styles';\n\nexport const styleSelectedText = (textarea, styleArgs) => {\n  const text = textarea.value.slice(textarea.selectionStart, textarea.selectionEnd);\n  let result;\n  if (styleArgs.orderedList) {\n    result = orderedList(textarea);\n  }\n  else if (styleArgs.multiline && isMultipleLines(text)) {\n    result = multilineStyle(textarea, styleArgs);\n  }\n  else {\n    result = blockStyle(textarea, styleArgs);\n  }\n\n  insertText(textarea, result);\n};\n\nexport default (button, stylesToApply) => {\n  const toolbar = button.parentElement;\n\n  const defaults = {\n    prefix: '',\n    suffix: '',\n    blockPrefix: '',\n    blockSuffix: '',\n    multiline: false,\n    replaceNext: '',\n    prefixSpace: false,\n    scanFor: '',\n    surroundWithNewlines: false,\n    orderedList: false,\n    trimFirst: false\n  };\n\n  const style = Object.assign({}, defaults, stylesToApply);\n\n  const field = document.getElementById(toolbar.dataset.for);\n\n  if (field) {\n    field.focus();\n    styleSelectedText(field, style);\n  }\n}\n","import Component from 'flarum/Component';\nimport icon from 'flarum/helpers/icon';\nimport apply from '../util/apply';\n\nconst modifierKey = navigator.userAgent.match(/Macintosh/) ? '⌘' : 'ctrl';\n\nexport default class MarkdownButton extends Component {\n  config(isInitialized) {\n    if (isInitialized) return;\n\n    this.$().tooltip();\n  }\n\n  view() {\n    return <button className=\"Button Button--icon Button--link\" title={this.title()} data-hotkey={this.props.hotkey}\n                   onclick={this.click.bind(this)} onkeydown={this.keydown.bind(this)}>\n      {icon(this.props.icon)}\n    </button>;\n  }\n\n  keydown(event) {\n    if (event.key === ' ' || event.key === 'Enter') {\n      event.preventDefault();\n      this.click();\n    }\n  }\n\n  click() {\n    return apply(this.element, this.props.style);\n  }\n\n  title() {\n    let tooltip = this.props.title;\n\n    if (this.props.hotkey) tooltip += ` <${modifierKey}-${this.props.hotkey}>`;\n\n    return tooltip;\n  }\n}\n","/*!\n * Includes modified code from GitHub Markdown Toolbar Element\n * https://github.com/github/markdown-toolbar-element/\n *\n * Original Copyright GitHub, Inc.\n * Released under the MIT license\n * https://github.com/github/markdown-toolbar-element/blob/master/LICENSE\n */\n\nimport { extend } from 'flarum/extend';\nimport TextEditor from 'flarum/components/TextEditor';\nimport MarkdownArea from 'mdarea';\n\nimport './polyfills';\nimport MarkdownToolbar from './components/MarkdownToolbar';\nimport MarkdownButton from './components/MarkdownButton';\n\napp.initializers.add('flarum-markdown', function(app) {\n\n  let index = 1;\n\n  extend(TextEditor.prototype, 'init', function() {\n    this.textareaId = 'textarea'+(index++);\n  });\n\n  extend(TextEditor.prototype, 'view', function(vdom) {\n    vdom.children[0].attrs.id = this.textareaId;\n  });\n\n  extend(TextEditor.prototype, 'configTextarea', function(value, element, isInitialized, context) {\n    if (isInitialized) return;\n\n    const editor = new MarkdownArea(element);\n    editor.disableInline();\n    editor.ignoreTab();\n\n    context.onunload = function() {\n      editor.destroy();\n    };\n  });\n\n  extend(TextEditor.prototype, 'toolbarItems', function(items) {\n    const tooltip = name => app.translator.trans(`flarum-markdown.forum.composer.${name}_tooltip`);\n\n    items.add('markdown', (\n      <MarkdownToolbar for={this.textareaId}>\n        <MarkdownButton title={tooltip('header')} icon=\"fas fa-heading\" style={{ prefix: '### ' }} />\n        <MarkdownButton title={tooltip('bold')} icon=\"fas fa-bold\" style={{ prefix: '**', suffix: '**', trimFirst: true }} hotkey=\"b\" />\n        <MarkdownButton title={tooltip('italic')} icon=\"fas fa-italic\" style={{ prefix: '_', suffix: '_', trimFirst: true }} hotkey=\"i\" />\n        <MarkdownButton title={tooltip('quote')} icon=\"fas fa-quote-left\" style={{ prefix: '> ', multiline: true, surroundWithNewlines: true }} />\n        <MarkdownButton title={tooltip('code')} icon=\"fas fa-code\" style={{ prefix: '`', suffix: '`', blockPrefix: '```', blockSuffix: '```' }} />\n        <MarkdownButton title={tooltip('link')} icon=\"fas fa-link\" style={{ prefix: '[', suffix: '](https://)', replaceNext: 'https://', scanFor: 'https?://' }} />\n        <MarkdownButton title={tooltip('image')} icon=\"fas fa-image\" style={{ prefix: '![', suffix: '](https://)', replaceNext: 'https://', scanFor: 'https?://' }} />\n        <MarkdownButton title={tooltip('unordered_list')} icon=\"fas fa-list-ul\" style={{ prefix: '- ', multiline: true, surroundWithNewlines: true }} />\n        <MarkdownButton title={tooltip('ordered_list')} icon=\"fas fa-list-ol\" style={{ prefix: '1. ', multiline: true, orderedList: true }} />\n      </MarkdownToolbar>\n    ), 100);\n  });\n});\n"],"sourceRoot":""}