separate HorizontalBar component added, to remove optional 'type' parameter at Bar, which was ignored inside reactive mixins

src/BaseCharts/HorizontalBar.js

@@ -0,0 +1,79 @@
+import Vue from 'vue'
+import Chart from 'chart.js'
+import { mergeOptions } from '../helpers/options'
+
+export default Vue.extend({
+  render: function (createElement) {
+    return createElement(
+      'div',
+      [
+        createElement(
+          'canvas', {
+            attrs: {
+              id: this.chartId,
+              width: this.width,
+              height: this.height
+            },
+            ref: 'canvas'
+          }
+        )
+      ]
+    )
+  },
+
+  props: {
+    chartId: {
+      default: 'horizontalbar-chart',
+      type: String
+    },
+    width: {
+      default: 400,
+      type: Number
+    },
+    height: {
+      default: 400,
+      type: Number
+    }
+  },
+
+  data () {
+    return {
+      defaultOptions: {
+        scales: {
+          yAxes: [{
+            ticks: {
+              beginAtZero: true
+            },
+            gridLines: {
+              display: false
+            }
+          }],
+          xAxes: [ {
+            gridLines: {
+              display: false
+            },
+            categoryPercentage: 0.5,
+            barPercentage: 0.2
+          }]
+        }
+      }
+    }
+  },
+
+  methods: {
+    renderChart (data, options, type) {
+      let chartOptions = mergeOptions(this.defaultOptions, options)
+      this._chart = new Chart(
+        this.$refs.canvas.getContext('2d'), {
+          type: 'horizontalBar',
+          data: data,
+          options: chartOptions
+        }
+      )
+      this._chart.generateLegend()
+    }
+  },
+  beforeDestroy () {
+    this._chart.destroy()
+  }
+})