搜索优化

package.json

@@ -39,7 +39,7 @@
     "jsencrypt": "3.0.0-rc.1",
     "lodash": "^4.17.21",
     "nprogress": "0.2.0",
-    "pdfjs-dist": "2.16.105",
+    "pdfjs-dist": "^2.16.105",
     "quill": "2.0.2",
     "screenfull": "5.0.2",
     "sm-crypto": "^0.3.13",

src/views/common/DocumentSearch.vue

@@ -103,9 +103,25 @@ export default {
             prefetchHandle: null,
             prefetchScheduled: false,
             initialPreloadedCount: 0,
+            cMapUrl: '',
+            standardFontDataUrl: '',
+            pdfAssetsBase: '',
+            fontsReady: new Set(),
         }
     },
     mounted() {
+        const base = (process.env.BASE_URL || '/').replace(/\/+$/, '/')
+        this.pdfAssetsBase = `${base}pdfjs/`
+        this.cMapUrl = `${this.pdfAssetsBase}cmaps/`
+        this.standardFontDataUrl = `${this.pdfAssetsBase}standard_fonts/`
+
+        pdfjsLib.GlobalCMapOptions = {
+            url: this.cMapUrl,
+            packed: true,
+        }
+        if ('GlobalStandardFontDataUrl' in pdfjsLib) {
+            pdfjsLib.GlobalStandardFontDataUrl = this.standardFontDataUrl
+        }
         this.pdfUrl = this.$route.query.url || 'http://192.168.0.14:9090/smart-bid/technicalSolutionDatabase/2025/10/30/fe5b46ea37554516a71e7c0c486d3715.pdf'
         if (this.pdfUrl) {
             this.loadDocument()
@@ -145,6 +161,9 @@ export default {
                     withCredentials: true,
                     httpHeaders: headers,
                     disableWorker: !resolvedWorkerSrc,
+                    useWorkerFetch: !!resolvedWorkerSrc,
+                    cMapUrl: this.cMapUrl,
+                    cMapPacked: true,
                 })
                 this.pdfDoc = await loadingTask.promise
                 console.log('PDF 文档加载成功', this.pdfDoc)
@@ -181,6 +200,7 @@ export default {
                 const placeholder = document.createElement('div')
                 placeholder.className = 'pdf-page placeholder'
                 placeholder.style.margin = '0px auto 10px'
+                placeholder.style.position= 'relative';
                 placeholder.dataset.page = pageNumber
                 placeholder.dataset.status = 'placeholder'
                 fragment.appendChild(placeholder)
@@ -301,7 +321,6 @@ export default {
             textLayerDiv.style.height = `${viewport.height}px`
             textLayerDiv.style.display = visible ? '' : 'none'
             container.appendChild(textLayerDiv)
-
             const textLayer = new TextLayerBuilder({
                 textLayerDiv,
                 pageIndex: index,
@@ -333,7 +352,7 @@ export default {
 
         async renderSinglePage(pageNumber) {
             await this.renderCanvas(pageNumber)
-            await this.renderTextLayer(pageNumber, { visible: true })
+            await this.renderTextLayer(pageNumber, { visible: true, force: true })
         },
 
         scheduleRender(pageNumber, { priority = false } = {}) {
@@ -620,11 +639,7 @@ export default {
                     if (entry.isIntersecting) {
                         const page = Number(entry.target.dataset.page)
                         if (page) {
-                            if (page > this.initialPreloadedCount) {
-                                this.renderTextLayer(page, { visible: true })
-                            } else if (page !== 1) {
-                                this.renderTextLayer(page, { visible: true })
-                            }
+                            this.renderTextLayer(page, { visible: true, force: true })
                             this.scheduleRender(page, { priority: true })
                         }
                     } else {
@@ -737,9 +752,7 @@ export default {
     border-radius: 8px;
     overflow: hidden;
     background: #ffffff;
-    display: flex;
-    align-items: center;
-    justify-content: center;
+    display: block;
 }
 
 .pdf-page:first-of-type::before,
@@ -798,6 +811,7 @@ export default {
 .pdf-canvas {
     width: 100%;
     display: block;
+    margin: 0 auto;
 }
 
 .textLayer {
@@ -817,6 +831,20 @@ export default {
     -webkit-user-select: text;
 }
 
+.pdf-page > canvas.pdf-canvas {
+    position: relative;
+    top: 0;
+    left: 50%;
+    transform: translateX(-50%);
+}
+
+.pdf-page > .textLayer {
+    position: absolute;
+    top: 0;
+    left: 50%;
+    transform: translateX(-50%);
+}
+
 .search-highlight {
     background: rgba(255, 241, 168, 0.9);
     padding: 0 2px;