From 870f064598a94c292f4cab3369a050444ec0d89c Mon Sep 17 00:00:00 2001
From: xiaoxian521 <1923740402@qq.com>
Date: Thu, 26 May 2022 22:35:35 +0800
Subject: [PATCH] perf: pdf demo

---
 src/views/able/pdf.vue | 56 ++++++++++++++++++++++++++++++++++--------
 1 file changed, 46 insertions(+), 10 deletions(-)

diff --git a/src/views/able/pdf.vue b/src/views/able/pdf.vue
index cfa31cedb..6355de970 100644
--- a/src/views/able/pdf.vue
+++ b/src/views/able/pdf.vue
@@ -1,21 +1,28 @@
 <script setup lang="ts">
 import { ref } from "vue";
 import { useI18n } from "vue-i18n";
-import VuePdfEmbed from "vue-pdf-embed";
+import VuePdfEmbed, {
+  type VuePdfEmbedMethods,
+  type VuePdfEmbedData
+} from "vue-pdf-embed";
 
 defineOptions({
   name: "Pdf"
 });
 
+interface pdfRefType extends VuePdfEmbedData, VuePdfEmbedMethods {}
+
 const { t } = useI18n();
+const pdfRef = ref<pdfRefType>();
+let pageCount = ref(1);
+let loading = ref(true);
+let currentPage = ref(1);
+let currentRotation = ref(0);
+let showAllPages = ref(false);
+const rotations = [0, 90, 180, 270];
 
 const source =
   "https://pure-admin-doc.vercel.app/pdf/Cookie%E5%92%8CSession%E5%8C%BA%E5%88%AB%E7%94%A8%E6%B3%95.pdf";
-const pdfRef = ref();
-let loading = ref(true);
-let showAllPages = ref(false);
-let pageCount = ref(1);
-let currentPage = ref(1);
 
 const handleDocumentRender = () => {
   loading.value = false;
@@ -25,6 +32,10 @@ const handleDocumentRender = () => {
 const showAllPagesChange = () => {
   currentPage.value = showAllPages.value ? null : 1;
 };
+
+const onPrint = () => {
+  pdfRef.value.print();
+};
 </script>
 
 <template>
@@ -49,7 +60,7 @@ const showAllPagesChange = () => {
     >
       <div class="flex justify-between items-center h-9">
         <div v-if="showAllPages" class="font-medium ml-1.25 text-xl">
-          {{ pageCount }} page(s)
+          共{{ pageCount }}页
         </div>
         <div v-else>
           <el-pagination
@@ -62,14 +73,39 @@ const showAllPagesChange = () => {
             {{ currentPage }} / {{ pageCount }}
           </el-pagination>
         </div>
-        <el-checkbox v-model="showAllPages" @change="showAllPagesChange">
-          Show all pages
-        </el-checkbox>
+        <div class="w-170px flex-bc">
+          <el-checkbox v-model="showAllPages" @change="showAllPagesChange">
+            显示所有页面
+          </el-checkbox>
+          <el-tooltip
+            effect="dark"
+            :content="`翻转（当前角度${rotations[currentRotation]}度）`"
+            placement="top"
+          >
+            <IconifyIconOnline
+              icon="ic:baseline-rotate-90-degrees-ccw"
+              class="cursor-pointer outline-transparent"
+              @click="
+                currentRotation === 3
+                  ? (currentRotation = 0)
+                  : (currentRotation += 1)
+              "
+            />
+          </el-tooltip>
+          <el-tooltip effect="dark" content="打印" placement="top">
+            <IconifyIconOnline
+              icon="ri:printer-line"
+              class="cursor-pointer outline-transparent"
+              @click="onPrint"
+            />
+          </el-tooltip>
+        </div>
       </div>
       <el-scrollbar>
         <vue-pdf-embed
           class="h-full container overflow-auto"
           ref="pdfRef"
+          :rotation="rotations[currentRotation]"
           :page="currentPage"
           :source="source"
           @rendered="handleDocumentRender"