refactor(select): empty status & data utils

packages/base/SelectMenu/src/SelectMenu.vue

@@ -6,6 +6,7 @@
       'n-base-select-menu--multiple': multiple,
       [`n-${theme}-theme`]: theme
     }"
+
     :style="{
       width: width && (width + 'px')
     }"
@@ -14,6 +15,7 @@
     @mousedown.prevent="() => {}"
   >
     <n-scrollbar
+      v-show="!empty"
       ref="scrollbar"
       :theme="theme"
       :without-scrollbar="withoutScrollbar"
@@ -22,7 +24,7 @@
       @scroll="handleMenuScroll"
     >
       <div class="n-base-select-menu-option-wrapper">
-        <template v-if="!loading">
+        <template v-show="empty">
           <recycle-scroller
             ref="virtualScroller"
             class="n-virtual-scroller"
@@ -54,39 +56,30 @@
       </div>
     </n-scrollbar>
     <div
-      v-if="loading"
-      class="n-base-select-option n-base-select-option--loading"
+      v-if="empty"
+      style="padding: 14px 0;"
     >
-      loading
-    </div>
-    <div
-      v-else-if="noData"
-      class="n-base-select-option n-base-select-option--no-data"
-    >
-      {{ noDataContent }}
-    </div>
-    <div
-      v-else-if="notFound"
-      class="n-base-select-option n-base-select-option--not-found"
-    >
-      {{ notFoundContent }}
+      <slot name="empty">
+        <n-empty description="No Data" />
+      </slot>
     </div>
   </div>
 </template>
 
 <script>
 import NScrollbar from '../../../common/Scrollbar'
+import NSelectOption from './SelectOption.vue'
+import NSelectGroupHeader from './SelectGroupHeader.vue'
+import NBaseLightBar from '../../LightBar'
+import NEmpty from '../../../common/Empty'
+import { RecycleScroller } from 'vue-virtual-scroller'
+import debounce from 'lodash-es/debounce'
 import {
   getPrevAvailableIndex,
   getNextAvailableIndex,
   flattenOptions,
   OPTION_TYPE
-} from '../../../utils/data/flattenedOptions'
-import NSelectOption from './SelectOption.vue'
-import NSelectGroupHeader from './SelectGroupHeader.vue'
-import NBaseLightBar from '../../LightBar'
-import debounce from 'lodash-es/debounce'
-import { RecycleScroller } from 'vue-virtual-scroller'
+} from '../../../utils/component/select'
 
 export default {
   name: 'NBaseSelectMenu',
@@ -99,6 +92,7 @@ export default {
     NScrollbar,
     NBaseLightBar,
     NSelectOption,
+    NEmpty,
     NSelectGroupHeader,
     RecycleScroller
   },
@@ -131,10 +125,6 @@ export default {
       type: String,
       default: 'default'
     },
-    loading: {
-      type: Boolean,
-      default: false
-    },
     pattern: {
       type: String,
       default: null
@@ -155,14 +145,6 @@ export default {
     emitOption: {
       type: Boolean,
       default: false
-    },
-    noDataContent: {
-      type: [String, Function],
-      default: 'no data'
-    },
-    notFoundContent: {
-      type: [String, Function],
-      default: 'none result matched'
     }
   },
   data () {
@@ -182,11 +164,9 @@ export default {
       const flattenedOptions = flattenOptions(this.options)
       return flattenedOptions
     },
-    notFound () {
-      return this.filterable && (this.pattern.length && !this.flattenedOptions.length)
-    },
-    noData () {
-      return this.flattenedOptions && this.flattenedOptions.length === 0
+    empty () {
+      const flattenedOptions = this.flattenedOptions
+      return flattenedOptions && flattenedOptions.length === 0
     },
     itemSize () {
       return ({
@@ -197,17 +177,7 @@ export default {
     }
   },
   watch: {
-    notFound (value) {
-      if (value) {
-        this.hideLightBar(0)
-      }
-    },
-    noData (value) {
-      if (value) {
-        this.hideLightBar(0)
-      }
-    },
-    loading (value) {
+    empty (value) {
       if (value) {
         this.hideLightBar(0)
       }

packages/base/SelectMenu/src/utils.js

@@ -1,10 +0,0 @@
-export const createValueAttribute = function createValueAttribute (value) {
-  if (typeof value === 'string') {
-    return 's-' + value
-  } else if (typeof value === 'number') {
-    return 'd-' + String(value)
-  } else {
-    console.error(['[naive-ui/select-option]: option value is neither string or number'])
-    return 'invalid'
-  }
-}

packages/common/Empty/src/Empty.vue

@@ -7,7 +7,7 @@
     :style="synthesizedStyle"
   >
     <div class="n-empty__icon">
-      <empty-icon />
+      <ios-remove-circle-outline />
     </div>
     <div v-if="showDescription" class="n-empty__description">
       <slot>
@@ -21,14 +21,14 @@
 </template>
 
 <script>
-import EmptyIcon from './EmptyIcon'
 import withapp from '../../../mixins/withapp'
 import themeable from '../../../mixins/themeable'
+import iosRemoveCircleOutline from '../../../icons/ios-remove-circle-outline'
 
 export default {
   name: 'NEmpty',
   components: {
-    EmptyIcon
+    iosRemoveCircleOutline
   },
   mixins: [ withapp, themeable ],
   props: {

packages/common/Select/index.js

@@ -1,10 +1,8 @@
 /* istanbul ignore file */
 import Select from './src/Select.vue'
-import SelectOption from './src/SelectOption.vue'
 
 Select.install = function (Vue) {
   Vue.component(Select.name, Select)
-  Vue.component('NSelectOption', SelectOption)
 }
 
 export default Select

packages/common/Select/src/Select.vue

@@ -31,6 +31,7 @@
       :disabled="disabled"
       :size="size"
       :theme="synthesizedTheme"
+      :loading="loading"
       @click="handleActivatorClick"
       @delete-last-option="handleDeleteLastOption"
       @delete-option="handleToggleOption"
@@ -64,16 +65,23 @@
             :options="filteredOptions"
             :multiple="multiple"
             :size="size"
-            :loading="loading"
-            :no-data-content="noDataContent"
-            :not-found-content="notFoundContent"
             :filterable="filterable"
             :is-option-selected="isOptionSelected"
             :mirror="false"
             @menu-toggle-option="handleToggleOption"
             @menu-scroll="handleMenuScroll"
             @menu-visible="handleMenuVisible"
-          />
+          >
+            <template v-if="$slots.empty" v-slot:empty>
+              <slot name="empty" />
+            </template>
+            <template v-if="$slots.unmatch" v-slot:unmatch>
+              <slot name="unmatch" />
+            </template>
+            <template v-if="$slots.action" v-slot:action>
+              <slot name="action" />
+            </template>
+          </n-base-select-menu>
         </transition>
       </div>
     </div>
@@ -91,7 +99,7 @@ import {
 import {
   filterOptions,
   valueToOptionMap
-} from '../../../utils/data/flattenedOptions'
+} from '../../../utils/component/select'
 import NBasePicker from '../../../base/Picker'
 import withapp from '../../../mixins/withapp'
 import themeable from '../../../mixins/themeable'
@@ -193,14 +201,6 @@ export default {
     items: {
       type: Array,
       default: undefined
-    },
-    noDataContent: {
-      type: [String, Function],
-      default: 'No Data'
-    },
-    notFoundContent: {
-      type: [String, Function],
-      default: 'No Result'
     }
   },
   data () {
@@ -208,8 +208,7 @@ export default {
       active: false,
       scrolling: false,
       pattern: '',
-      memorizedValueToOptionMap: new Map(),
-      disablePlaceableTracingWhenActive: true
+      memorizedValueToOptionMap: new Map()
     }
   },
   computed: {
@@ -273,7 +272,6 @@ export default {
   methods: {
     activate () {
       this.active = true
-      this.disablePlaceableTracingWhenActive = true
     },
     deactivate () {
       this.active = false
@@ -442,7 +440,6 @@ export default {
       }
     },
     handleMenuVisible () {
-      this.disablePlaceableTracingWhenActive = false
       this.updatePosition()
     },
     /**

packages/common/Select/src/SelectOption.vue

@@ -1,5 +0,0 @@
-<script>
-import NBaseSelectOption from '../../../base/SelectMenu/src/SelectOption.vue'
-
-export default NBaseSelectOption
-</script>

styles/BaseSelectMenu.scss

@@ -86,17 +86,6 @@
         }
         cursor: not-allowed;
       }
-      @include m(no-data) {
-        color: map-get($map: $--base-select-menu-option-color, $key: "disabled");
-        text-align: center;
-        pointer-events: none;
-      }
-      @include m(not-found) {
-        color: map-get($map: $--base-select-menu-option-color, $key: "disabled");
-        text-align: center;
-        pointer-events: none;
-
-      }
       @include m(loading) {
         color: map-get($map: $--base-select-menu-option-color, $key: "disabled");
         text-align: center;

styles/Empty.scss

@@ -10,20 +10,22 @@
     @include e(icon) {
       @include once {
         transition: fill .3s $--n-ease-in-out-cubic-bezier;
-        width: 40px;
-        height: 40px;
+        width: 28px;
+        height: 28px;
       }
       fill: $--empty-icon-fill;
     }
     @include e(description) {
       @include once {
-        margin-top: 8px;
+        font-size: 14px;
+        margin-top: 4px;
         transition: color .3s $--n-ease-in-out-cubic-bezier;
       }
       color: $--empty-text-color;
     }
     @include e(extra) {
       @include once {
+        font-size: 14px;;
         text-align: center;
         transition: color .3s $--n-ease-in-out-cubic-bezier;
         margin-top: 16px;