easyflow-ui-admin/app/src/locales/langs/en-US/button.json

@@ -51,6 +51,8 @@
   "submitPublishApproval": "Submit Publish Approval",
   "viewSegmentation": "View Segments",
   "continueProcess": "Continue",
+  "backToTop": "Back to top",
+  "goToBottom": "Go to bottom",
   "startIndex": "Start Indexing",
   "retryParse": "Retry Parse",
   "retryIndex": "Retry Index"

easyflow-ui-admin/app/src/locales/langs/zh-CN/button.json

@@ -51,6 +51,8 @@
   "submitPublishApproval": "提交发布审批",
   "viewSegmentation": "查看分段",
   "continueProcess": "继续处理",
+  "backToTop": "回到页顶",
+  "goToBottom": "到达页末",
   "startIndex": "开始向量化",
   "retryParse": "重试解析",
   "retryIndex": "重试向量化"

easyflow-ui-admin/app/src/views/ai/documentCollection/SegmenterDoc.vue

@@ -432,19 +432,7 @@ watch(
       </div>
     </ElForm>
 
-    <section class="workbench__content">
-      <SplitterDocPreview
-        :loading="previewLoading"
-        :preview-items="previewItems"
-        @preview-session-change="handlePreviewSessionChange"
-      />
-    </section>
-
-    <div v-if="previewError" class="workbench__error">
-      {{ previewError }}
-    </div>
-
-    <div class="workbench__footer">
+    <div class="workbench__actions">
       <ElButton :disabled="startLoading" @click="handleCancel">
         {{ $t('button.cancel') }}
       </ElButton>
@@ -457,6 +445,18 @@ watch(
         {{ $t('button.startIndex') }}
       </ElButton>
     </div>
+
+    <section class="workbench__content">
+      <SplitterDocPreview
+        :loading="previewLoading"
+        :preview-items="previewItems"
+        @preview-session-change="handlePreviewSessionChange"
+      />
+    </section>
+
+    <div v-if="previewError" class="workbench__error">
+      {{ previewError }}
+    </div>
   </div>
 </template>
 
@@ -484,6 +484,15 @@ watch(
   grid-column: 1 / -1;
 }
 
+.workbench__actions {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 8px;
+  justify-content: flex-end;
+  padding-bottom: 16px;
+  border-bottom: 1px solid var(--el-border-color-lighter);
+}
+
 .workbench__content {
   min-height: 620px;
 }
@@ -500,22 +509,6 @@ watch(
   border-radius: 16px;
 }
 
-.workbench__footer {
-  position: sticky;
-  bottom: 0;
-  display: flex;
-  justify-content: flex-end;
-  gap: 12px;
-  padding: 16px 0 8px;
-  margin-top: auto;
-  background: linear-gradient(
-    180deg,
-    rgb(246 248 251 / 0%) 0%,
-    rgb(246 248 251 / 82%) 30%,
-    rgb(246 248 251 / 100%) 100%
-  );
-}
-
 :deep(.el-form-item__label) {
   padding-bottom: 6px;
   font-size: 13px;

easyflow-ui-admin/packages/@core/base/icons/src/lucide.ts

@@ -1,5 +1,6 @@
 export {
   ArrowDown,
+  ArrowDownToLine,
   ArrowLeft,
   ArrowLeftToLine,
   ArrowRightLeft,

easyflow-ui-admin/packages/@core/ui-kit/shadcn-ui/src/components/back-top/back-top.vue

@@ -3,7 +3,7 @@ import type { BacktopProps } from './backtop';
 
 import { computed } from 'vue';
 
-import { ArrowUpToLine } from '@easyflow-core/icons';
+import { ArrowDownToLine, ArrowUpToLine } from '@easyflow-core/icons';
 
 import { EasyFlowButton } from '../button';
 import { useBackTop } from './use-backtop';
@@ -14,9 +14,11 @@ defineOptions({ name: 'BackTop' });
 
 const props = withDefaults(defineProps<Props>(), {
   bottom: 20,
+  bottomLabel: 'Scroll to bottom',
   isGroup: false,
   right: 24,
   target: '',
+  topLabel: 'Back to top',
   visibilityHeight: 200,
 });
 
@@ -25,19 +27,45 @@ const backTopStyle = computed(() => ({
   right: `${props.right}px`,
 }));
 
-const { handleClick, visible } = useBackTop(props);
+const {
+  canScrollDown,
+  canScrollUp,
+  handleBottomClick,
+  handleClick,
+  scrollable,
+  visible,
+} = useBackTop(props);
 </script>
 <template>
   <transition name="fade-down">
-    <EasyFlowButton
-      v-if="visible"
+    <div
+      v-if="isGroup ? scrollable : visible"
       :style="backTopStyle"
-      class="dark:bg-accent dark:hover:bg-heavy bg-background hover:bg-heavy data shadow-float z-popup fixed bottom-10 size-10 rounded-full duration-500"
-      size="icon"
-      variant="icon"
-      @click="handleClick"
+      class="z-popup fixed flex flex-col gap-2"
     >
-      <ArrowUpToLine class="size-4" />
-    </EasyFlowButton>
+      <EasyFlowButton
+        :aria-label="topLabel"
+        :disabled="isGroup && !canScrollUp"
+        :title="topLabel"
+        class="dark:bg-accent dark:hover:bg-heavy bg-background hover:bg-heavy shadow-float size-10 rounded-full duration-150"
+        size="icon"
+        variant="icon"
+        @click="handleClick"
+      >
+        <ArrowUpToLine class="size-4" />
+      </EasyFlowButton>
+      <EasyFlowButton
+        v-if="isGroup"
+        :aria-label="bottomLabel"
+        :disabled="!canScrollDown"
+        :title="bottomLabel"
+        class="dark:bg-accent dark:hover:bg-heavy bg-background hover:bg-heavy shadow-float size-10 rounded-full duration-150"
+        size="icon"
+        variant="icon"
+        @click="handleBottomClick"
+      >
+        <ArrowDownToLine class="size-4" />
+      </EasyFlowButton>
+    </div>
   </transition>
 </template>

easyflow-ui-admin/packages/@core/ui-kit/shadcn-ui/src/components/back-top/backtop.ts

@@ -6,6 +6,20 @@ export const backtopProps = {
     default: 40,
     type: Number,
   },
+  /**
+   * @zh_CN scroll-to-bottom button label.
+   */
+  bottomLabel: {
+    default: 'Scroll to bottom',
+    type: String,
+  },
+  /**
+   * @zh_CN whether to show top and bottom controls as a group.
+   */
+  isGroup: {
+    default: false,
+    type: Boolean,
+  },
   /**
    * @zh_CN right distance.
    */
@@ -20,6 +34,13 @@ export const backtopProps = {
     default: '',
     type: String,
   },
+  /**
+   * @zh_CN back-to-top button label.
+   */
+  topLabel: {
+    default: 'Back to top',
+    type: String,
+  },
   /**
    * @zh_CN the button will not show until the scroll height reaches this value.
    */
@@ -31,8 +52,10 @@ export const backtopProps = {
 
 export interface BacktopProps {
   bottom?: number;
+  bottomLabel?: string;
   isGroup?: boolean;
   right?: number;
   target?: string;
+  topLabel?: string;
   visibilityHeight?: number;
 }

easyflow-ui-admin/packages/@core/ui-kit/shadcn-ui/src/components/back-top/use-backtop.ts

@@ -1,16 +1,31 @@
 import type { BacktopProps } from './backtop';
 
-import { onMounted, ref, shallowRef } from 'vue';
+import { nextTick, onMounted, ref, shallowRef } from 'vue';
 
-import { useEventListener, useThrottleFn } from '@vueuse/core';
+import {
+  useEventListener,
+  useResizeObserver,
+  useThrottleFn,
+} from '@vueuse/core';
 
 export const useBackTop = (props: BacktopProps) => {
   const el = shallowRef<HTMLElement>();
   const container = shallowRef<Document | HTMLElement>();
+  const resizeTarget = shallowRef<HTMLElement>();
+  const canScrollDown = ref(false);
+  const canScrollUp = ref(false);
+  const scrollable = ref(false);
   const visible = ref(false);
 
   const handleScroll = () => {
     if (el.value) {
+      const maxScrollTop = Math.max(
+        el.value.scrollHeight - el.value.clientHeight,
+        0,
+      );
+      scrollable.value = maxScrollTop > 1;
+      canScrollUp.value = el.value.scrollTop > 1;
+      canScrollDown.value = el.value.scrollTop < maxScrollTop - 1;
       visible.value = el.value.scrollTop >= (props?.visibilityHeight ?? 0);
     }
   };
@@ -19,12 +34,24 @@ export const useBackTop = (props: BacktopProps) => {
     el.value?.scrollTo({ behavior: 'smooth', top: 0 });
   };
 
+  const handleBottomClick = () => {
+    if (!el.value) {
+      return;
+    }
+    el.value.scrollTo({
+      behavior: 'smooth',
+      top: Math.max(el.value.scrollHeight - el.value.clientHeight, 0),
+    });
+  };
+
   const handleScrollThrottled = useThrottleFn(handleScroll, 300, true);
 
   useEventListener(container, 'scroll', handleScrollThrottled);
+  useResizeObserver(resizeTarget, handleScrollThrottled);
   onMounted(() => {
     container.value = document;
     el.value = document.documentElement;
+    resizeTarget.value = document.body;
 
     if (props.target) {
       el.value = document.querySelector<HTMLElement>(props.target) ?? undefined;
@@ -33,13 +60,17 @@ export const useBackTop = (props: BacktopProps) => {
         throw new Error(`target does not exist: ${props.target}`);
       }
       container.value = el.value;
+      resizeTarget.value = el.value;
     }
-    // Give visible an initial value, fix #13066
-    handleScroll();
+    void nextTick(handleScroll);
   });
 
   return {
+    canScrollDown,
+    canScrollUp,
+    handleBottomClick,
     handleClick,
+    scrollable,
     visible,
   };
 };

easyflow-ui-admin/packages/effects/layouts/src/basic/layout.vue

@@ -425,7 +425,11 @@ const headerSlots = computed(() => {
           @clear-preferences-and-logout="clearPreferencesAndLogout"
         />
       </template>
-      <EasyFlowBackTop />
+      <EasyFlowBackTop
+        :bottom-label="$t('button.goToBottom')"
+        is-group
+        :top-label="$t('button.backToTop')"
+      />
     </template>
   </EasyFlowAdminLayout>
 </template>