bootstrap-table
Version: 
An extended table to integration with some of the most widely used CSS frameworks. (Supports Bootstrap, Semantic UI, Bulma, Material Design, Foundation)
1,481 lines (1,233 loc) • 108 kB
JavaScript
/**
 * @author zhixin wen <wenzhixin2010@gmail.com>
 * version: 1.21.3
 * https://github.com/wenzhixin/bootstrap-table/
 */
import Constants from './constants/index.js'
import Utils from './utils/index.js'
import VirtualScroll from './virtual-scroll/index.js'
class BootstrapTable {
  constructor (el, options) {
    this.options = options
    this.$el = $(el)
    this.$el_ = this.$el.clone()
    this.timeoutId_ = 0
    this.timeoutFooter_ = 0
  }
  init () {
    this.initConstants()
    this.initLocale()
    this.initContainer()
    this.initTable()
    this.initHeader()
    this.initData()
    this.initHiddenRows()
    this.initToolbar()
    this.initPagination()
    this.initBody()
    this.initSearchText()
    this.initServer()
  }
  initConstants () {
    const opts = this.options
    this.constants = Constants.CONSTANTS
    this.constants.theme = $.fn.bootstrapTable.theme
    this.constants.dataToggle = this.constants.html.dataToggle || 'data-toggle'
    // init iconsPrefix and icons
    const iconsPrefix = Utils.getIconsPrefix($.fn.bootstrapTable.theme)
    const icons = Utils.getIcons(iconsPrefix)
    if (typeof opts.icons === 'string') {
      opts.icons = Utils.calculateObjectValue(null, opts.icons)
    }
    opts.iconsPrefix = opts.iconsPrefix || $.fn.bootstrapTable.defaults.iconsPrefix || iconsPrefix
    opts.icons = Object.assign(icons, $.fn.bootstrapTable.defaults.icons, opts.icons)
    // init buttons class
    const buttonsPrefix = opts.buttonsPrefix ? `${opts.buttonsPrefix}-` : ''
    this.constants.buttonsClass = [
      opts.buttonsPrefix,
      buttonsPrefix + opts.buttonsClass,
      Utils.sprintf(`${buttonsPrefix}%s`, opts.iconSize)
    ].join(' ').trim()
    this.buttons = Utils.calculateObjectValue(this, opts.buttons, [], {})
    if (typeof this.buttons !== 'object') {
      this.buttons = {}
    }
  }
  initLocale () {
    if (this.options.locale) {
      const locales = $.fn.bootstrapTable.locales
      const parts = this.options.locale.split(/-|_/)
      parts[0] = parts[0].toLowerCase()
      if (parts[1]) {
        parts[1] = parts[1].toUpperCase()
      }
      let localesToExtend = {}
      if (locales[this.options.locale]) {
        localesToExtend = locales[this.options.locale]
      } else if (locales[parts.join('-')]) {
        localesToExtend = locales[parts.join('-')]
      } else if (locales[parts[0]]) {
        localesToExtend = locales[parts[0]]
      }
      for (const [formatName, func] of Object.entries(localesToExtend)) {
        if (this.options[formatName] !== BootstrapTable.DEFAULTS[formatName]) {
          continue
        }
        this.options[formatName] = func
      }
    }
  }
  initContainer () {
    const topPagination = ['top', 'both'].includes(this.options.paginationVAlign) ?
      '<div class="fixed-table-pagination clearfix"></div>' : ''
    const bottomPagination = ['bottom', 'both'].includes(this.options.paginationVAlign) ?
      '<div class="fixed-table-pagination"></div>' : ''
    const loadingTemplate = Utils.calculateObjectValue(this.options,
      this.options.loadingTemplate, [this.options.formatLoadingMessage()])
    this.$container = $(`
      <div class="bootstrap-table ${this.constants.theme}">
      <div class="fixed-table-toolbar"></div>
      ${topPagination}
      <div class="fixed-table-container">
      <div class="fixed-table-header"><table></table></div>
      <div class="fixed-table-body">
      <div class="fixed-table-loading">
      ${loadingTemplate}
      </div>
      </div>
      <div class="fixed-table-footer"></div>
      </div>
      ${bottomPagination}
      </div>
    `)
    this.$container.insertAfter(this.$el)
    this.$tableContainer = this.$container.find('.fixed-table-container')
    this.$tableHeader = this.$container.find('.fixed-table-header')
    this.$tableBody = this.$container.find('.fixed-table-body')
    this.$tableLoading = this.$container.find('.fixed-table-loading')
    this.$tableFooter = this.$el.find('tfoot')
    // checking if custom table-toolbar exists or not
    if (this.options.buttonsToolbar) {
      this.$toolbar = $('body').find(this.options.buttonsToolbar)
    } else {
      this.$toolbar = this.$container.find('.fixed-table-toolbar')
    }
    this.$pagination = this.$container.find('.fixed-table-pagination')
    this.$tableBody.append(this.$el)
    this.$container.after('<div class="clearfix"></div>')
    this.$el.addClass(this.options.classes)
    this.$tableLoading.addClass(this.options.classes)
    if (this.options.height) {
      this.$tableContainer.addClass('fixed-height')
      if (this.options.showFooter) {
        this.$tableContainer.addClass('has-footer')
      }
      if (this.options.classes.split(' ').includes('table-bordered')) {
        this.$tableBody.append('<div class="fixed-table-border"></div>')
        this.$tableBorder = this.$tableBody.find('.fixed-table-border')
        this.$tableLoading.addClass('fixed-table-border')
      }
      this.$tableFooter = this.$container.find('.fixed-table-footer')
    }
  }
  initTable () {
    const columns = []
    this.$header = this.$el.find('>thead')
    if (!this.$header.length) {
      this.$header = $(`<thead class="${this.options.theadClasses}"></thead>`).appendTo(this.$el)
    } else if (this.options.theadClasses) {
      this.$header.addClass(this.options.theadClasses)
    }
    this._headerTrClasses = []
    this._headerTrStyles = []
    this.$header.find('tr').each((i, el) => {
      const $tr = $(el)
      const column = []
      $tr.find('th').each((i, el) => {
        const $th = $(el)
        // #2014: getFieldIndex and elsewhere assume this is string, causes issues if not
        if (typeof $th.data('field') !== 'undefined') {
          $th.data('field', `${$th.data('field')}`)
        }
        const _data = Object.assign({}, $th.data())
        for (const key in _data) {
          if ($.fn.bootstrapTable.columnDefaults.hasOwnProperty(key)) {
            delete _data[key]
          }
        }
        column.push(Utils.extend({}, {
          _data: Utils.getRealDataAttr(_data),
          title: $th.html(),
          class: $th.attr('class'),
          titleTooltip: $th.attr('title'),
          rowspan: $th.attr('rowspan') ? +$th.attr('rowspan') : undefined,
          colspan: $th.attr('colspan') ? +$th.attr('colspan') : undefined
        }, $th.data()))
      })
      columns.push(column)
      if ($tr.attr('class')) {
        this._headerTrClasses.push($tr.attr('class'))
      }
      if ($tr.attr('style')) {
        this._headerTrStyles.push($tr.attr('style'))
      }
    })
    if (!Array.isArray(this.options.columns[0])) {
      this.options.columns = [this.options.columns]
    }
    this.options.columns = Utils.extend(true, [], columns, this.options.columns)
    this.columns = []
    this.fieldsColumnsIndex = []
    Utils.setFieldIndex(this.options.columns)
    this.options.columns.forEach((columns, i) => {
      columns.forEach((_column, j) => {
        const column = Utils.extend({}, BootstrapTable.COLUMN_DEFAULTS, _column, { passed: _column })
        if (typeof column.fieldIndex !== 'undefined') {
          this.columns[column.fieldIndex] = column
          this.fieldsColumnsIndex[column.field] = column.fieldIndex
        }
        this.options.columns[i][j] = column
      })
    })
    // if options.data is setting, do not process tbody and tfoot data
    if (!this.options.data.length) {
      const htmlData = Utils.trToData(this.columns, this.$el.find('>tbody>tr'))
      if (htmlData.length) {
        this.options.data = htmlData
        this.fromHtml = true
      }
    }
    if (!(this.options.pagination && this.options.sidePagination !== 'server')) {
      this.footerData = Utils.trToData(this.columns, this.$el.find('>tfoot>tr'))
    }
    if (this.footerData) {
      this.$el.find('tfoot').html('<tr></tr>')
    }
    if (!this.options.showFooter || this.options.cardView) {
      this.$tableFooter.hide()
    } else {
      this.$tableFooter.show()
    }
  }
  initHeader () {
    const visibleColumns = {}
    const headerHtml = []
    this.header = {
      fields: [],
      styles: [],
      classes: [],
      formatters: [],
      detailFormatters: [],
      events: [],
      sorters: [],
      sortNames: [],
      cellStyles: [],
      searchables: []
    }
    Utils.updateFieldGroup(this.options.columns, this.columns)
    this.options.columns.forEach((columns, i) => {
      const html = []
      html.push(`<tr${Utils.sprintf(' class="%s"', this._headerTrClasses[i])} ${Utils.sprintf(' style="%s"', this._headerTrStyles[i])}>`)
      let detailViewTemplate = ''
      if (i === 0 && Utils.hasDetailViewIcon(this.options)) {
        const rowspan = this.options.columns.length > 1 ?
          ` rowspan="${this.options.columns.length}"` : ''
        detailViewTemplate = `<th class="detail"${rowspan}>
          <div class="fht-cell"></div>
          </th>`
      }
      if (detailViewTemplate && this.options.detailViewAlign !== 'right') {
        html.push(detailViewTemplate)
      }
      columns.forEach((column, j) => {
        const class_ = Utils.sprintf(' class="%s"', column['class'])
        const unitWidth = column.widthUnit
        const width = parseFloat(column.width)
        const columnHalign = column.halign ? column.halign : column.align
        const halign = Utils.sprintf('text-align: %s; ', columnHalign)
        const align = Utils.sprintf('text-align: %s; ', column.align)
        let style = Utils.sprintf('vertical-align: %s; ', column.valign)
        style += Utils.sprintf('width: %s; ', (column.checkbox || column.radio) && !width ?
          !column.showSelectTitle ? '36px' : undefined :
          width ? width + unitWidth : undefined)
        if (typeof column.fieldIndex === 'undefined' && !column.visible) {
          return
        }
        const headerStyle = Utils.calculateObjectValue(null, this.options.headerStyle, [column])
        const csses = []
        const data_ = []
        let classes = ''
        if (headerStyle && headerStyle.css) {
          for (const [key, value] of Object.entries(headerStyle.css)) {
            csses.push(`${key}: ${value}`)
          }
        }
        if (headerStyle && headerStyle.classes) {
          classes = Utils.sprintf(' class="%s"', column['class'] ?
            [column['class'], headerStyle.classes].join(' ') : headerStyle.classes)
        }
        if (typeof column.fieldIndex !== 'undefined') {
          this.header.fields[column.fieldIndex] = column.field
          this.header.styles[column.fieldIndex] = align + style
          this.header.classes[column.fieldIndex] = class_
          this.header.formatters[column.fieldIndex] = column.formatter
          this.header.detailFormatters[column.fieldIndex] = column.detailFormatter
          this.header.events[column.fieldIndex] = column.events
          this.header.sorters[column.fieldIndex] = column.sorter
          this.header.sortNames[column.fieldIndex] = column.sortName
          this.header.cellStyles[column.fieldIndex] = column.cellStyle
          this.header.searchables[column.fieldIndex] = column.searchable
          if (!column.visible) {
            return
          }
          if (this.options.cardView && !column.cardVisible) {
            return
          }
          visibleColumns[column.field] = column
        }
        if (Object.keys(column._data || {}).length > 0) {
          for (const [k, v] of Object.entries(column._data)) {
            data_.push(`data-${k}='${typeof v === 'object' ? JSON.stringify(v) : v}'`)
          }
        }
        html.push(`<th${Utils.sprintf(' title="%s"', column.titleTooltip)}`,
          column.checkbox || column.radio ?
            Utils.sprintf(' class="bs-checkbox %s"', column['class'] || '') :
            classes || class_,
          Utils.sprintf(' style="%s"', halign + style + csses.join('; ')),
          Utils.sprintf(' rowspan="%s"', column.rowspan),
          Utils.sprintf(' colspan="%s"', column.colspan),
          Utils.sprintf(' data-field="%s"', column.field),
          // If `column` is not the first element of `this.options.columns[0]`, then className 'data-not-first-th' should be added.
          j === 0 && i > 0 ? ' data-not-first-th' : '',
          data_.length > 0 ? data_.join(' ') : '',
          '>')
        html.push(Utils.sprintf('<div class="th-inner %s">',
          this.options.sortable && column.sortable ? `sortable${columnHalign === 'center' ? ' sortable-center' : ''} both` : ''))
        let text = this.options.escape && this.options.escapeTitle ? Utils.escapeHTML(column.title) : column.title
        const title = text
        if (column.checkbox) {
          text = ''
          if (!this.options.singleSelect && this.options.checkboxHeader) {
            text = '<label><input name="btSelectAll" type="checkbox" /><span></span></label>'
          }
          this.header.stateField = column.field
        }
        if (column.radio) {
          text = ''
          this.header.stateField = column.field
        }
        if (!text && column.showSelectTitle) {
          text += title
        }
        html.push(text)
        html.push('</div>')
        html.push('<div class="fht-cell"></div>')
        html.push('</div>')
        html.push('</th>')
      })
      if (detailViewTemplate && this.options.detailViewAlign === 'right') {
        html.push(detailViewTemplate)
      }
      html.push('</tr>')
      if (html.length > 3) {
        headerHtml.push(html.join(''))
      }
    })
    this.$header.html(headerHtml.join(''))
    this.$header.find('th[data-field]').each((i, el) => {
      $(el).data(visibleColumns[$(el).data('field')])
    })
    this.$container.off('click', '.th-inner').on('click', '.th-inner', e => {
      const $this = $(e.currentTarget)
      if (this.options.detailView && !$this.parent().hasClass('bs-checkbox')) {
        if ($this.closest('.bootstrap-table')[0] !== this.$container[0]) {
          return false
        }
      }
      if (this.options.sortable && $this.parent().data().sortable) {
        this.onSort(e)
      }
    })
    const resizeEvent = Utils.getEventName('resize.bootstrap-table', this.$el.attr('id'))
    $(window).off(resizeEvent)
    if (!this.options.showHeader || this.options.cardView) {
      this.$header.hide()
      this.$tableHeader.hide()
      this.$tableLoading.css('top', 0)
    } else {
      this.$header.show()
      this.$tableHeader.show()
      this.$tableLoading.css('top', this.$header.outerHeight() + 1)
      // Assign the correct sortable arrow
      this.getCaret()
      $(window).on(resizeEvent, () => this.resetView())
    }
    this.$selectAll = this.$header.find('[name="btSelectAll"]')
    this.$selectAll.off('click').on('click', e => {
      e.stopPropagation()
      const checked = $(e.currentTarget).prop('checked')
      this[checked ? 'checkAll' : 'uncheckAll']()
      this.updateSelected()
    })
  }
  initData (data, type) {
    if (type === 'append') {
      this.options.data = this.options.data.concat(data)
    } else if (type === 'prepend') {
      this.options.data = [].concat(data).concat(this.options.data)
    } else {
      data = data || Utils.deepCopy(this.options.data)
      this.options.data = Array.isArray(data) ? data : data[this.options.dataField]
    }
    this.data = [...this.options.data]
    if (this.options.sortReset) {
      this.unsortedData = [...this.data]
    }
    if (this.options.sidePagination === 'server') {
      return
    }
    this.initSort()
  }
  initSort () {
    let name = this.options.sortName
    const order = this.options.sortOrder === 'desc' ? -1 : 1
    const index = this.header.fields.indexOf(this.options.sortName)
    let timeoutId = 0
    if (index !== -1) {
      if (this.options.sortStable) {
        this.data.forEach((row, i) => {
          if (!row.hasOwnProperty('_position')) {
            row._position = i
          }
        })
      }
      if (this.options.customSort) {
        Utils.calculateObjectValue(this.options, this.options.customSort, [
          this.options.sortName,
          this.options.sortOrder,
          this.data
        ])
      } else {
        this.data.sort((a, b) => {
          if (this.header.sortNames[index]) {
            name = this.header.sortNames[index]
          }
          const aa = Utils.getItemField(a, name, this.options.escape)
          const bb = Utils.getItemField(b, name, this.options.escape)
          const value = Utils.calculateObjectValue(this.header, this.header.sorters[index], [aa, bb, a, b])
          if (value !== undefined) {
            if (this.options.sortStable && value === 0) {
              return order * (a._position - b._position)
            }
            return order * value
          }
          return Utils.sort(aa, bb, order, this.options, a._position, b._position)
        })
      }
      if (this.options.sortClass !== undefined) {
        clearTimeout(timeoutId)
        timeoutId = setTimeout(() => {
          this.$el.removeClass(this.options.sortClass)
          const index = this.$header.find(`[data-field="${this.options.sortName}"]`).index()
          this.$el.find(`tr td:nth-child(${index + 1})`).addClass(this.options.sortClass)
        }, 250)
      }
    } else if (this.options.sortReset) {
      this.data = [...this.unsortedData]
    }
  }
  onSort ({ type, currentTarget }) {
    const $this = type === 'keypress' ? $(currentTarget) : $(currentTarget).parent()
    const $this_ = this.$header.find('th').eq($this.index())
    this.$header.add(this.$header_).find('span.order').remove()
    if (this.options.sortName === $this.data('field')) {
      const currentSortOrder = this.options.sortOrder
      const initialSortOrder = this.columns[this.fieldsColumnsIndex[$this.data('field')]].sortOrder ||
        this.columns[this.fieldsColumnsIndex[$this.data('field')]].order
      if (currentSortOrder === undefined) {
        this.options.sortOrder = 'asc'
      } else if (currentSortOrder === 'asc') {
        this.options.sortOrder = this.options.sortReset ? initialSortOrder === 'asc' ? 'desc' : undefined : 'desc'
      } else if (this.options.sortOrder === 'desc') {
        this.options.sortOrder = this.options.sortReset ? initialSortOrder === 'desc' ? 'asc' : undefined : 'asc'
      }
      if (this.options.sortOrder === undefined) {
        this.options.sortName = undefined
      }
    } else {
      this.options.sortName = $this.data('field')
      if (this.options.rememberOrder) {
        this.options.sortOrder = $this.data('order') === 'asc' ? 'desc' : 'asc'
      } else {
        this.options.sortOrder = this.columns[this.fieldsColumnsIndex[$this.data('field')]].sortOrder ||
          this.columns[this.fieldsColumnsIndex[$this.data('field')]].order
      }
    }
    this.trigger('sort', this.options.sortName, this.options.sortOrder)
    $this.add($this_).data('order', this.options.sortOrder)
    // Assign the correct sortable arrow
    this.getCaret()
    if (this.options.sidePagination === 'server' && this.options.serverSort) {
      this.options.pageNumber = 1
      this.initServer(this.options.silentSort)
      return
    }
    if (this.options.pagination && this.options.sortResetPage) {
      this.options.pageNumber = 1
      this.initPagination()
    }
    this.initSort()
    this.initBody()
  }
  initToolbar () {
    const opts = this.options
    let html = []
    let timeoutId = 0
    let $keepOpen
    let switchableCount = 0
    if (this.$toolbar.find('.bs-bars').children().length) {
      $('body').append($(opts.toolbar))
    }
    this.$toolbar.html('')
    if (typeof opts.toolbar === 'string' || typeof opts.toolbar === 'object') {
      $(Utils.sprintf('<div class="bs-bars %s-%s"></div>', this.constants.classes.pull, opts.toolbarAlign))
        .appendTo(this.$toolbar)
        .append($(opts.toolbar))
    }
    // showColumns, showToggle, showRefresh
    html = [`<div class="${[
      'columns',
      `columns-${opts.buttonsAlign}`,
      this.constants.classes.buttonsGroup,
      `${this.constants.classes.pull}-${opts.buttonsAlign}`
    ].join(' ')}">`]
    if (typeof opts.buttonsOrder === 'string') {
      opts.buttonsOrder = opts.buttonsOrder.replace(/\[|\]| |'/g, '').split(',')
    }
    this.buttons = Object.assign(this.buttons, {
      paginationSwitch: {
        text: opts.pagination ? opts.formatPaginationSwitchUp() : opts.formatPaginationSwitchDown(),
        icon: opts.pagination ? opts.icons.paginationSwitchDown : opts.icons.paginationSwitchUp,
        render: false,
        event: this.togglePagination,
        attributes: {
          'aria-label': opts.formatPaginationSwitch(),
          title: opts.formatPaginationSwitch()
        }
      },
      refresh: {
        text: opts.formatRefresh(),
        icon: opts.icons.refresh,
        render: false,
        event: this.refresh,
        attributes: {
          'aria-label': opts.formatRefresh(),
          title: opts.formatRefresh()
        }
      },
      toggle: {
        text: opts.formatToggleOn(),
        icon: opts.icons.toggleOff,
        render: false,
        event: this.toggleView,
        attributes: {
          'aria-label': opts.formatToggleOn(),
          title: opts.formatToggleOn()
        }
      },
      fullscreen: {
        text: opts.formatFullscreen(),
        icon: opts.icons.fullscreen,
        render: false,
        event: this.toggleFullscreen,
        attributes: {
          'aria-label': opts.formatFullscreen(),
          title: opts.formatFullscreen()
        }
      },
      columns: {
        render: false,
        html: () => {
          const html = []
          html.push(`<div class="keep-open ${this.constants.classes.buttonsDropdown}" title="${opts.formatColumns()}">
            <button class="${this.constants.buttonsClass} dropdown-toggle" type="button" ${this.constants.dataToggle}="dropdown"
            aria-label="${opts.formatColumns()}" title="${opts.formatColumns()}">
            ${opts.showButtonIcons ? Utils.sprintf(this.constants.html.icon, opts.iconsPrefix, opts.icons.columns) : ''}
            ${opts.showButtonText ? opts.formatColumns() : ''}
            ${this.constants.html.dropdownCaret}
            </button>
            ${this.constants.html.toolbarDropdown[0]}`)
          if (opts.showColumnsSearch) {
            html.push(
              Utils.sprintf(this.constants.html.toolbarDropdownItem,
                Utils.sprintf('<input type="text" class="%s" name="columnsSearch" placeholder="%s" autocomplete="off">', this.constants.classes.input, opts.formatSearch())
              )
            )
            html.push(this.constants.html.toolbarDropdownSeparator)
          }
          if (opts.showColumnsToggleAll) {
            const allFieldsVisible = this.getVisibleColumns().length === this.columns.filter(column => !this.isSelectionColumn(column)).length
            html.push(
              Utils.sprintf(this.constants.html.toolbarDropdownItem,
                Utils.sprintf('<input type="checkbox" class="toggle-all" %s> <span>%s</span>',
                  allFieldsVisible ? 'checked="checked"' : '', opts.formatColumnsToggleAll())
              )
            )
            html.push(this.constants.html.toolbarDropdownSeparator)
          }
          let visibleColumns = 0
          this.columns.forEach(column => {
            if (column.visible) {
              visibleColumns++
            }
          })
          this.columns.forEach((column, i) => {
            if (this.isSelectionColumn(column)) {
              return
            }
            if (opts.cardView && !column.cardVisible) {
              return
            }
            const checked = column.visible ? ' checked="checked"' : ''
            const disabled = visibleColumns <= opts.minimumCountColumns && checked ? ' disabled="disabled"' : ''
            if (column.switchable) {
              html.push(Utils.sprintf(this.constants.html.toolbarDropdownItem,
                Utils.sprintf('<input type="checkbox" data-field="%s" value="%s"%s%s> <span>%s</span>',
                  column.field, i, checked, disabled, column.title)))
              switchableCount++
            }
          })
          html.push(this.constants.html.toolbarDropdown[1], '</div>')
          return html.join('')
        }
      }
    })
    const buttonsHtml = {}
    for (const [buttonName, buttonConfig] of Object.entries(this.buttons)) {
      let buttonHtml
      if (buttonConfig.hasOwnProperty('html')) {
        if (typeof buttonConfig.html === 'function') {
          buttonHtml = buttonConfig.html()
        } else if (typeof buttonConfig.html === 'string') {
          buttonHtml = buttonConfig.html
        }
      } else {
        buttonHtml = `<button class="${this.constants.buttonsClass}" type="button" name="${buttonName}"`
        if (buttonConfig.hasOwnProperty('attributes')) {
          for (const [attributeName, value] of Object.entries(buttonConfig.attributes)) {
            buttonHtml += ` ${attributeName}="${value}"`
          }
        }
        buttonHtml += '>'
        if (opts.showButtonIcons && buttonConfig.hasOwnProperty('icon')) {
          buttonHtml += `${Utils.sprintf(this.constants.html.icon, opts.iconsPrefix, buttonConfig.icon)} `
        }
        if (opts.showButtonText && buttonConfig.hasOwnProperty('text')) {
          buttonHtml += buttonConfig.text
        }
        buttonHtml += '</button>'
      }
      buttonsHtml[buttonName] = buttonHtml
      const optionName = `show${buttonName.charAt(0).toUpperCase()}${buttonName.substring(1)}`
      const showOption = opts[optionName]
      if ((
        !buttonConfig.hasOwnProperty('render') ||
        buttonConfig.hasOwnProperty('render') &&
        buttonConfig.render) &&
        (showOption === undefined || showOption === true)
      ) {
        opts[optionName] = true
      }
      if (!opts.buttonsOrder.includes(buttonName)) {
        opts.buttonsOrder.push(buttonName)
      }
    }
    // Adding the button html to the final toolbar html when the showOption is true
    for (const button of opts.buttonsOrder) {
      const showOption = opts[`show${button.charAt(0).toUpperCase()}${button.substring(1)}`]
      if (showOption) {
        html.push(buttonsHtml[button])
      }
    }
    html.push('</div>')
    // Fix #188: this.showToolbar is for extensions
    if (this.showToolbar || html.length > 2) {
      this.$toolbar.append(html.join(''))
    }
    for (const [buttonName, buttonConfig] of Object.entries(this.buttons)) {
      if (buttonConfig.hasOwnProperty('event')) {
        if (typeof buttonConfig.event === 'function' || typeof buttonConfig.event === 'string') {
          const event = typeof buttonConfig.event === 'string' ? window[buttonConfig.event] : buttonConfig.event
          this.$toolbar.find(`button[name="${buttonName}"]`)
            .off('click')
            .on('click', () => event.call(this))
          continue
        }
        for (const [eventType, eventFunction] of Object.entries(buttonConfig.event)) {
          const event = typeof eventFunction === 'string' ? window[eventFunction] : eventFunction
          this.$toolbar.find(`button[name="${buttonName}"]`)
            .off(eventType)
            .on(eventType, () => event.call(this))
        }
      }
    }
    if (opts.showColumns) {
      $keepOpen = this.$toolbar.find('.keep-open')
      const $checkboxes = $keepOpen.find('input[type="checkbox"]:not(".toggle-all")')
      const $toggleAll = $keepOpen.find('input[type="checkbox"].toggle-all')
      if (switchableCount <= opts.minimumCountColumns) {
        $keepOpen.find('input').prop('disabled', true)
      }
      $keepOpen.find('li, label').off('click').on('click', e => {
        e.stopImmediatePropagation()
      })
      $checkboxes.off('click').on('click', ({ currentTarget }) => {
        const $this = $(currentTarget)
        this._toggleColumn($this.val(), $this.prop('checked'), false)
        this.trigger('column-switch', $this.data('field'), $this.prop('checked'))
        $toggleAll.prop('checked', $checkboxes.filter(':checked').length === this.columns.filter(column => !this.isSelectionColumn(column)).length)
      })
      $toggleAll.off('click').on('click', ({ currentTarget }) => {
        this._toggleAllColumns($(currentTarget).prop('checked'))
        this.trigger('column-switch-all', $(currentTarget).prop('checked'))
      })
      if (opts.showColumnsSearch) {
        const $columnsSearch = $keepOpen.find('[name="columnsSearch"]')
        const $listItems = $keepOpen.find('.dropdown-item-marker')
        $columnsSearch.on('keyup paste change', ({ currentTarget }) => {
          const $this = $(currentTarget)
          const searchValue = $this.val().toLowerCase()
          $listItems.show()
          $checkboxes.each((i, el) => {
            const $checkbox = $(el)
            const $listItem = $checkbox.parents('.dropdown-item-marker')
            const text = $listItem.text().toLowerCase()
            if (!text.includes(searchValue)) {
              $listItem.hide()
            }
          })
        })
      }
    }
    const handleInputEvent = $searchInput => {
      const eventTriggers = 'keyup drop blur mouseup'
      $searchInput.off(eventTriggers).on(eventTriggers, event => {
        if (opts.searchOnEnterKey && event.keyCode !== 13) {
          return
        }
        if ([37, 38, 39, 40].includes(event.keyCode)) {
          return
        }
        clearTimeout(timeoutId) // doesn't matter if it's 0
        timeoutId = setTimeout(() => {
          this.onSearch({ currentTarget: event.currentTarget })
        }, opts.searchTimeOut)
      })
    }
    // Fix #4516: this.showSearchClearButton is for extensions
    if (
      (opts.search || this.showSearchClearButton) &&
      typeof opts.searchSelector !== 'string'
    ) {
      html = []
      const showSearchButton = Utils.sprintf(this.constants.html.searchButton,
        this.constants.buttonsClass,
        opts.formatSearch(),
        opts.showButtonIcons ? Utils.sprintf(this.constants.html.icon, opts.iconsPrefix, opts.icons.search) : '',
        opts.showButtonText ? opts.formatSearch() : ''
      )
      const showSearchClearButton = Utils.sprintf(this.constants.html.searchClearButton,
        this.constants.buttonsClass,
        opts.formatClearSearch(),
        opts.showButtonIcons ? Utils.sprintf(this.constants.html.icon, opts.iconsPrefix, opts.icons.clearSearch) : '',
        opts.showButtonText ? opts.formatClearSearch() : ''
      )
      const searchInputHtml = `<input class="${this.constants.classes.input}
        ${Utils.sprintf(' %s%s', this.constants.classes.inputPrefix, opts.iconSize)}
        search-input" type="search" aria-label="${opts.formatSearch()}" placeholder="${opts.formatSearch()}" autocomplete="off">`
      let searchInputFinalHtml = searchInputHtml
      if (opts.showSearchButton || opts.showSearchClearButton) {
        const buttonsHtml = (opts.showSearchButton ? showSearchButton : '') +
          (opts.showSearchClearButton ? showSearchClearButton : '')
        searchInputFinalHtml = opts.search ? Utils.sprintf(this.constants.html.inputGroup,
          searchInputHtml, buttonsHtml) : buttonsHtml
      }
      html.push(Utils.sprintf(`
        <div class="${this.constants.classes.pull}-${opts.searchAlign} search ${this.constants.classes.inputGroup}">
          %s
        </div>
      `, searchInputFinalHtml))
      this.$toolbar.append(html.join(''))
      const $searchInput = Utils.getSearchInput(this)
      if (opts.showSearchButton) {
        this.$toolbar.find('.search button[name=search]').off('click').on('click', () => {
          clearTimeout(timeoutId) // doesn't matter if it's 0
          timeoutId = setTimeout(() => {
            this.onSearch({ currentTarget: $searchInput })
          }, opts.searchTimeOut)
        })
        if (opts.searchOnEnterKey) {
          handleInputEvent($searchInput)
        }
      } else {
        handleInputEvent($searchInput)
      }
      if (opts.showSearchClearButton) {
        this.$toolbar.find('.search button[name=clearSearch]').click(() => {
          this.resetSearch()
        })
      }
    } else if (typeof opts.searchSelector === 'string') {
      const $searchInput = Utils.getSearchInput(this)
      handleInputEvent($searchInput)
    }
  }
  onSearch ({ currentTarget, firedByInitSearchText } = {}, overwriteSearchText = true) {
    if (currentTarget !== undefined && $(currentTarget).length && overwriteSearchText) {
      const text = $(currentTarget).val().trim()
      if (this.options.trimOnSearch && $(currentTarget).val() !== text) {
        $(currentTarget).val(text)
      }
      if (this.searchText === text) {
        return
      }
      const $searchInput = Utils.getSearchInput(this)
      const $currentTarget = currentTarget instanceof jQuery ? currentTarget : $(currentTarget)
      if ($currentTarget.is($searchInput) || $currentTarget.hasClass('search-input')) {
        this.searchText = text
        this.options.searchText = text
      }
    }
    if (!firedByInitSearchText) {
      this.options.pageNumber = 1
    }
    this.initSearch()
    if (firedByInitSearchText) {
      if (this.options.sidePagination === 'client') {
        this.updatePagination()
      }
    } else {
      this.updatePagination()
    }
    this.trigger('search', this.searchText)
  }
  initSearch () {
    this.filterOptions = this.filterOptions || this.options.filterOptions
    if (this.options.sidePagination !== 'server') {
      if (this.options.customSearch) {
        this.data = Utils.calculateObjectValue(this.options, this.options.customSearch,
          [this.options.data, this.searchText, this.filterColumns])
        if (this.options.sortReset) {
          this.unsortedData = [...this.data]
        }
        this.initSort()
        return
      }
      const rawSearchText = this.searchText && (this.fromHtml ? Utils.escapeHTML(this.searchText) : this.searchText)
      let searchText = rawSearchText ? rawSearchText.toLowerCase() : ''
      const f = Utils.isEmptyObject(this.filterColumns) ? null : this.filterColumns
      if (this.options.searchAccentNeutralise) {
        searchText = Utils.normalizeAccent(searchText)
      }
      // Check filter
      if (typeof this.filterOptions.filterAlgorithm === 'function') {
        this.data = this.options.data.filter(item => this.filterOptions.filterAlgorithm.apply(null, [item, f]))
      } else if (typeof this.filterOptions.filterAlgorithm === 'string') {
        this.data = f ? this.options.data.filter(item => {
          const filterAlgorithm = this.filterOptions.filterAlgorithm
          if (filterAlgorithm === 'and') {
            for (const key in f) {
              if (
                Array.isArray(f[key]) &&
                  !f[key].includes(item[key]) ||
                !Array.isArray(f[key]) &&
                  item[key] !== f[key]
              ) {
                return false
              }
            }
          } else if (filterAlgorithm === 'or') {
            let match = false
            for (const key in f) {
              if (
                Array.isArray(f[key]) &&
                  f[key].includes(item[key]) ||
                !Array.isArray(f[key]) &&
                  item[key] === f[key]
              ) {
                match = true
              }
            }
            return match
          }
          return true
        }) : [...this.options.data]
      }
      const visibleFields = this.getVisibleFields()
      this.data = searchText ? this.data.filter((item, i) => {
        for (let j = 0; j < this.header.fields.length; j++) {
          if (!this.header.searchables[j] || this.options.visibleSearch && visibleFields.indexOf(this.header.fields[j]) === -1) {
            continue
          }
          const key = Utils.isNumeric(this.header.fields[j]) ? parseInt(this.header.fields[j], 10) : this.header.fields[j]
          const column = this.columns[this.fieldsColumnsIndex[key]]
          let value
          if (typeof key === 'string') {
            value = item
            const props = key.split('.')
            for (let i = 0; i < props.length; i++) {
              if (value[props[i]] !== null) {
                value = value[props[i]]
              } else {
                value = null
                break
              }
            }
          } else {
            value = item[key]
          }
          if (this.options.searchAccentNeutralise) {
            value = Utils.normalizeAccent(value)
          }
          // Fix #142: respect searchFormatter boolean
          if (column && column.searchFormatter) {
            value = Utils.calculateObjectValue(column,
              this.header.formatters[j], [value, item, i, column.field], value)
          }
          if (typeof value === 'string' || typeof value === 'number') {
            if (
              this.options.strictSearch && `${value}`.toLowerCase() === searchText ||
              this.options.regexSearch && Utils.regexCompare(value, rawSearchText)
            ) {
              return true
            }
            const largerSmallerEqualsRegex = /(?:(<=|=>|=<|>=|>|<)(?:\s+)?(-?\d+)?|(-?\d+)?(\s+)?(<=|=>|=<|>=|>|<))/gm
            const matches = largerSmallerEqualsRegex.exec(this.searchText)
            let comparisonCheck = false
            if (matches) {
              const operator = matches[1] || `${matches[5]}l`
              const comparisonValue = matches[2] || matches[3]
              const int = parseInt(value, 10)
              const comparisonInt = parseInt(comparisonValue, 10)
              switch (operator) {
                case '>':
                case '<l':
                  comparisonCheck = int > comparisonInt
                  break
                case '<':
                case '>l':
                  comparisonCheck = int < comparisonInt
                  break
                case '<=':
                case '=<':
                case '>=l':
                case '=>l':
                  comparisonCheck = int <= comparisonInt
                  break
                case '>=':
                case '=>':
                case '<=l':
                case '=<l':
                  comparisonCheck = int >= comparisonInt
                  break
                default:
                  break
              }
            }
            if (comparisonCheck || `${value}`.toLowerCase().includes(searchText)) {
              return true
            }
          }
        }
        return false
      }) : this.data
      if (this.options.sortReset) {
        this.unsortedData = [...this.data]
      }
      this.initSort()
    }
  }
  initPagination () {
    const opts = this.options
    if (!opts.pagination) {
      this.$pagination.hide()
      return
    }
    this.$pagination.show()
    const html = []
    let allSelected = false
    let i
    let from
    let to
    let $pageList
    let $pre
    let $next
    let $number
    const data = this.getData({ includeHiddenRows: false })
    let pageList = opts.pageList
    if (typeof pageList === 'string') {
      pageList = pageList.replace(/\[|\]| /g, '').toLowerCase().split(',')
    }
    pageList = pageList.map(value => {
      if (typeof value === 'string') {
        return value.toLowerCase() === opts.formatAllRows().toLowerCase() ||
          ['all', 'unlimited'].includes(value.toLowerCase()) ? opts.formatAllRows() : +value
      }
      return value
    })
    this.paginationParts = opts.paginationParts
    if (typeof this.paginationParts === 'string') {
      this.paginationParts = this.paginationParts.replace(/\[|\]| |'/g, '').split(',')
    }
    if (opts.sidePagination !== 'server') {
      opts.totalRows = data.length
    }
    this.totalPages = 0
    if (opts.totalRows) {
      if (opts.pageSize === opts.formatAllRows()) {
        opts.pageSize = opts.totalRows
        allSelected = true
      }
      this.totalPages = ~~((opts.totalRows - 1) / opts.pageSize) + 1
      opts.totalPages = this.totalPages
    }
    if (this.totalPages > 0 && opts.pageNumber > this.totalPages) {
      opts.pageNumber = this.totalPages
    }
    this.pageFrom = (opts.pageNumber - 1) * opts.pageSize + 1
    this.pageTo = opts.pageNumber * opts.pageSize
    if (this.pageTo > opts.totalRows) {
      this.pageTo = opts.totalRows
    }
    if (this.options.pagination && this.options.sidePagination !== 'server') {
      this.options.totalNotFiltered = this.options.data.length
    }
    if (!this.options.showExtendedPagination) {
      this.options.totalNotFiltered = undefined
    }
    if (this.paginationParts.includes('pageInfo') || this.paginationParts.includes('pageInfoShort') || this.paginationParts.includes('pageSize')) {
      html.push(`<div class="${this.constants.classes.pull}-${opts.paginationDetailHAlign} pagination-detail">`)
    }
    if (this.paginationParts.includes('pageInfo') || this.paginationParts.includes('pageInfoShort')) {
      const paginationInfo = this.paginationParts.includes('pageInfoShort') ? opts.formatDetailPagination(opts.totalRows) : opts.formatShowingRows(this.pageFrom, this.pageTo, opts.totalRows, opts.totalNotFiltered)
      html.push(`<span class="pagination-info">
      ${paginationInfo}
      </span>`)
    }
    if (this.paginationParts.includes('pageSize')) {
      html.push('<div class="page-list">')
      const pageNumber = [
        `<div class="${this.constants.classes.paginationDropdown}">
        <button class="${this.constants.buttonsClass} dropdown-toggle" type="button" ${this.constants.dataToggle}="dropdown">
        <span class="page-size">
        ${allSelected ? opts.formatAllRows() : opts.pageSize}
        </span>
        ${this.constants.html.dropdownCaret}
        </button>
        ${this.constants.html.pageDropdown[0]}`
      ]
      pageList.forEach((page, i) => {
        if (!opts.smartDisplay || i === 0 || pageList[i - 1] < opts.totalRows || page === opts.formatAllRows()) {
          let active
          if (allSelected) {
            active = page === opts.formatAllRows() ? this.constants.classes.dropdownActive : ''
          } else {
            active = page === opts.pageSize ? this.constants.classes.dropdownActive : ''
          }
          pageNumber.push(Utils.sprintf(this.constants.html.pageDropdownItem, active, page))
        }
      })
      pageNumber.push(`${this.constants.html.pageDropdown[1]}</div>`)
      html.push(opts.formatRecordsPerPage(pageNumber.join('')))
    }
    if (this.paginationParts.includes('pageInfo') || this.paginationParts.includes('pageInfoShort') || this.paginationParts.includes('pageSize')) {
      html.push('</div></div>')
    }
    if (this.paginationParts.includes('pageList')) {
      html.push(`<div class="${this.constants.classes.pull}-${opts.paginationHAlign} pagination">`,
        Utils.sprintf(this.constants.html.pagination[0], Utils.sprintf(' pagination-%s', opts.iconSize)),
        Utils.sprintf(this.constants.html.paginationItem, ' page-pre', opts.formatSRPaginationPreText(), opts.paginationPreText))
      if (this.totalPages < opts.paginationSuccessivelySize) {
        from = 1
        to = this.totalPages
      } else {
        from = opts.pageNumber - opts.paginationPagesBySide
        to = from + opts.paginationPagesBySide * 2
      }
      if (opts.pageNumber < opts.paginationSuccessivelySize - 1) {
        to = opts.paginationSuccessivelySize
      }
      if (opts.paginationSuccessivelySize > this.totalPages - from) {
        from = from - (opts.paginationSuccessivelySize - (this.totalPages - from)) + 1
      }
      if (from < 1) {
        from = 1
      }
      if (to > this.totalPages) {
        to = this.totalPages
      }
      const middleSize = Math.round(opts.paginationPagesBySide / 2)
      const pageItem = (i, classes = '') => Utils.sprintf(this.constants.html.paginationItem,
        classes + (i === opts.pageNumber ? ` ${this.constants.classes.paginationActive}` : ''), opts.formatSRPaginationPageText(i), i)
      if (from > 1) {
        let max = opts.paginationPagesBySide
        if (max >= from) max = from - 1
        for (i = 1; i <= max; i++) {
          html.push(pageItem(i))
        }
        if (from - 1 === max + 1) {
          i = from - 1
          html.push(pageItem(i))
        } else if (from - 1 > max) {
          if (
            from - opts.paginationPagesBySide * 2 > opts.paginationPagesBySide &&
              opts.paginationUseIntermediate
          ) {
            i = Math.round((from - middleSize) / 2 + middleSize)
            html.push(pageItem(i, ' page-intermediate'))
          } else {
            html.push(Utils.sprintf(this.constants.html.paginationItem,
              ' page-first-separator disabled', '', '...'))
          }
        }
      }
      for (i = from; i <= to; i++) {
        html.push(pageItem(i))
      }
      if (this.totalPages > to) {
        let min = this.totalPages - (opts.paginationPagesBySide - 1)
        if (to >= min) min = to + 1
        if (to + 1 === min - 1) {
          i = to + 1
          html.push(pageItem(i))
        } else if (min > to + 1) {
          if (
            this.totalPages - to > opts.paginationPagesBySide * 2 &&
              opts.paginationUseIntermediate
          ) {
            i = Math.round((this.totalPages - middleSize - to) / 2 + to)
            html.push(pageItem(i, ' page-intermediate'))
          } else {
            html.push(Utils.sprintf(this.constants.html.paginationItem,
              ' page-last-separator disabled', '', '...'))
          }
        }
        for (i = min; i <= this.totalPages; i++) {
          html.push(pageItem(i))
        }
      }
      html.push(Utils.sprintf(this.constants.html.paginationItem, ' page-next', opts.formatSRPaginationNextText(), opts.paginationNextText))
      html.push(this.constants.html.pagination[1], '</div>')
    }
    this.$pagination.html(html.join(''))
    const dropupClass = ['bottom', 'both'].includes(opts.paginationVAlign) ?
      ` ${this.constants.classes.dropup}` : ''
    this.$pagination.last().find('.page-list > div').addClass(dropupClass)
    if (!opts.onlyInfoPagination) {
      $pageList = this.$pagination.find('.page-list a')
      $pre = this.$pagination.find('.page-pre')
      $next = this.$pagination.find('.page-next')
      $number = this.$pagination.find('.page-item').not('.page-next, .page-pre, .page-last-separator, .page-first-separator')
      if (this.totalPages <= 1) {
        this.$pagination.find('div.pagination').hide()
      }
      if (opts.smartDisplay) {
        if (pageList.length < 2 || opts.totalRows <= pageList[0]) {
          this.$pagination.find('div.page-list').hide()
        }
      }
      // when data is empty, hide the pagination
      this.$pagination[this.getData().length ? 'show' : 'hide']()
      if (!opts.paginationLoop) {
        if (opts.pageNumber === 1) {
          $pre.addClass('disabled')
        }
        if (opts.pageNumber === this.totalPages) {
          $next.addClass('disabled')
        }
      }
      if (allSelected) {
        opts.pageSize = opts.formatAllRows()
      }
      // removed the events for last and first, onPageNumber executeds the same logic
      $pageList.off('click').on('click', e => this.onPageListChange(e))
      $pre.off('click').on('click', e => this.onPagePre(e))
      $next.off('click').on('click', e => this.onPageNext(e))
      $number.off('click').on('click', e => this.onPageNumber(e))
    }
  }
  updatePagination (event) {
    // Fix #171: IE disabled button can be clicked bug.
    if (event && $(event.currentTarget).hasClass('disabled')) {
      return
    }
    if (!this.options.maintainMetaData) {
      this.resetRows()
    }
    this.initPagination()
    this.trigger('page-change', this.options.pageNumber, this.options.pageSize)
    if (this.options.sidePagination === 'server') {
      this.initServer()
    } else {
      this.initBody()
    }
  }
  onPageListChange (event) {
    event.preventDefault()
    const $this = $(event.currentTarget)
    $this.parent().addClass(this.constants.classes.dropdownActive)
      .siblings().removeClass(this.constants.classes.dropdownActive)
    this.options.pageSize = $this.text().toUpperCase() === this.options.formatAllRows().toUpperCase() ?
      this.options.formatAllRows() : +$this.text()
    this.$toolbar.find('.page-size').text(this.options.pageSize)
    this.updatePagination(event)
    return false
  }
  onPagePre (event) {
    if ($(event.target).hasClass('disabled')) {
      return
    }
    event.preventDefault()
    if (this.options.pageNumber - 1 === 0) {
      this.options.pageNumber = this.options.totalPages
    } else {
      this.options.pageNumber--
    }
    this.updatePagination(event)
    return false
  }
  onPageNext (event) {
    if ($(event.target).hasClass('disabled')) {
      return
    }
    event.preventDefault()
    if (this.options.pageNumber + 1 > this.options.totalPages) {
      this.options.pageNumber = 1
    } else {
      this.options.pageNumber++
    }
    this.updatePagination(event)
    return false
  }
  onPageNumber (event) {
    event.preventDefault()
    if (this.options.pageNumber === +$(event.currentTarget).text()) {
      return
    }
    this.options.pageNumber = +$(event.currentTarget).text()
    this.updatePagination(event)
    return false
  }
  // eslint-disable-next-line no-unused-vars
  initRow (item, i, data, trFragments) {
    const html = []
    let style = {}
    const csses = []
    let data_ = ''
    let attributes = {}
    const htmlAttributes = []
    if (Utils.findIndex(this.hiddenRows, item) > -1) {
      return
    }
    style = Utils.calculateObjectValue(this.options, this.options.rowStyle, [