implement ChoiceSetting for settings modal similar to BooleanSetting

src/components/settings_modal/helpers/choice_setting.js

@@ -0,0 +1,34 @@
+import { get, set } from 'lodash'
+import Select from 'src/components/select/select.vue'
+import ModifiedIndicator from './modified_indicator.vue'
+export default {
+  components: {
+    Select,
+    ModifiedIndicator
+  },
+  props: [
+    'path',
+    'disabled',
+    'options'
+  ],
+  computed: {
+    pathDefault () {
+      const [firstSegment, ...rest] = this.path.split('.')
+      return [firstSegment + 'DefaultValue', ...rest].join('.')
+    },
+    state () {
+      return get(this.$parent, this.path)
+    },
+    defaultState () {
+      return get(this.$parent, this.pathDefault)
+    },
+    isChanged () {
+      return get(this.$parent, this.path) !== get(this.$parent, this.pathDefault)
+    }
+  },
+  methods: {
+    update (e) {
+      set(this.$parent, this.path, e)
+    }
+  }
+}

src/components/settings_modal/helpers/choice_setting.vue

@@ -0,0 +1,29 @@
+<template>
+  <label
+    class="ChoiceSetting"
+  >
+    <slot />
+    <Select
+      :value="state"
+      :disabled="disabled"
+      @change="update"
+    >
+      <option
+        v-for="option in options"
+        :key="option.key"
+        :value="option.value"
+      >
+        {{ option.label }}
+        {{ option.value === defaultValue ? $t('settings.instance_default_simple') : '' }}
+      </option>
+    </Select>
+    <ModifiedIndicator :changed="isChanged" />
+  </label>
+</template>
+
+<script src="./choice_setting.js"></script>
+
+<style lang="scss">
+.ChoiceSetting {
+}
+</style>