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Viewing file:     Helpers.js (2.33 KB)      -rwxrwxr-x

import Utils from '../../utils/Utils'

export default class Helpers {
  constructor(dCtx) {
    this.w = dCtx.w
    this.dCtx = dCtx
  }

  /**
   * Get Chart Title/Subtitle Dimensions
   * @memberof Dimensions
   * @return {{width, height}}
   **/
  getTitleSubtitleCoords(type) {
    let w = this.w
    let width = 0
    let height = 0

    const floating =
      type === 'title' ? w.config.title.floating : w.config.subtitle.floating

    let el = w.globals.dom.baseEl.querySelector(`.apexcharts-${type}-text`)

    if (el !== null && !floating) {
      let coord = el.getBoundingClientRect()
      width = coord.width
      height = w.globals.axisCharts ? coord.height + 5 : coord.height
    }

    return {
      width,
      height
    }
  }

  getLegendsRect() {
    let w = this.w

    let elLegendWrap = w.globals.dom.baseEl.querySelector('.apexcharts-legend')

    if (
      !w.config.legend.height &&
      (w.config.legend.position === 'top' ||
        w.config.legend.position === 'bottom')
    ) {
      // avoid legend to take up all the space
      elLegendWrap.style.maxHeight = w.globals.svgHeight / 2 + 'px'
    }

    let lgRect = Object.assign({}, Utils.getBoundingClientRect(elLegendWrap))

    if (
      elLegendWrap !== null &&
      !w.config.legend.floating &&
      w.config.legend.show
    ) {
      this.dCtx.lgRect = {
        x: lgRect.x,
        y: lgRect.y,
        height: lgRect.height,
        width: lgRect.height === 0 ? 0 : lgRect.width
      }
    } else {
      this.dCtx.lgRect = {
        x: 0,
        y: 0,
        height: 0,
        width: 0
      }
    }

    // if legend takes up all of the chart space, we need to restrict it.
    if (
      w.config.legend.position === 'left' ||
      w.config.legend.position === 'right'
    ) {
      if (this.dCtx.lgRect.width * 1.5 > w.globals.svgWidth) {
        this.dCtx.lgRect.width = w.globals.svgWidth / 1.5
      }
    }

    return this.dCtx.lgRect
  }

  getLargestStringFromMultiArr(val, arr) {
    const w = this.w
    let valArr = val
    if (w.globals.isMultiLineX) {
      // if the xaxis labels has multiline texts (array)
      let maxArrs = arr.map((xl, idx) => {
        return Array.isArray(xl) ? xl.length : 1
      })
      let maxArrLen = Math.max(...maxArrs)
      let maxArrIndex = maxArrs.indexOf(maxArrLen)
      valArr = arr[maxArrIndex]
    }

    return valArr
  }
}