Add:Saving progress for PDF ebooks #1791

client/components/readers/PdfReader.vue

@@ -19,7 +19,7 @@
       <div class="flex items-center justify-center">
         <div :style="{ width: pdfWidth + 'px', height: pdfHeight + 'px' }" class="w-full h-full overflow-auto">
           <div v-if="loadedRatio > 0 && loadedRatio < 1" style="background-color: green; color: white; text-align: center" :style="{ width: loadedRatio * 100 + '%' }">{{ Math.floor(loadedRatio * 100) }}%</div>
-          <pdf ref="pdf" class="m-auto z-10 border border-black border-opacity-20 shadow-md" :src="url" :page="page" :rotate="rotate" @progress="loadedRatio = $event" @error="error" @num-pages="numPagesLoaded" @link-clicked="page = $event"></pdf>
+          <pdf ref="pdf" class="m-auto z-10 border border-black border-opacity-20 shadow-md" :src="url" :page="page" :rotate="rotate" @progress="progressEvt" @error="error" @num-pages="numPagesLoaded" @link-clicked="page = $event" @loaded="loadedEvt"></pdf>
         </div>
       </div>
     </div>
@@ -30,14 +30,18 @@
 </template>
 
 <script>
-import pdf from 'vue-pdf'
+import pdf from '@teckel/vue-pdf'
 
 export default {
   components: {
     pdf
   },
   props: {
-    url: String
+    url: String,
+    libraryItem: {
+      type: Object,
+      default: () => {}
+    }
   },
   data() {
     return {
@@ -48,6 +52,9 @@ export default {
     }
   },
   computed: {
+    libraryItemId() {
+      return this.libraryItem?.id
+    },
     pdfWidth() {
       return this.pdfHeight * 0.6667
     },
@@ -59,19 +66,50 @@ export default {
     },
     canGoPrev() {
       return this.page > 1
+    },
+    userMediaProgress() {
+      if (!this.libraryItemId) return
+      return this.$store.getters['user/getUserMediaProgress'](this.libraryItemId)
+    },
+    savedPage() {
+      return Number(this.userMediaProgress?.ebookLocation || 0)
     }
   },
   methods: {
+    updateProgress() {
+      if (!this.numPages) {
+        console.error('Num pages not loaded')
+        return
+      }
+
+      const payload = {
+        ebookLocation: this.page,
+        ebookProgress: Math.max(0, Math.min(1, (Number(this.page) - 1) / Number(this.numPages)))
+      }
+      this.$axios.$patch(`/api/me/progress/${this.libraryItemId}`, payload).catch((error) => {
+        console.error('EpubReader.updateProgress failed:', error)
+      })
+    },
+    loadedEvt() {
+      if (this.savedPage && this.savedPage > 0 && this.savedPage <= this.numPages) {
+        this.page = this.savedPage
+      }
+    },
+    progressEvt(progress) {
+      this.loadedRatio = progress
+    },
     numPagesLoaded(e) {
       this.numPages = e
     },
     prev() {
       if (this.page <= 1) return
       this.page--
+      this.updateProgress()
     },
     next() {
       if (this.page >= this.numPages) return
       this.page++
+      this.updateProgress()
     },
     error(err) {
       console.error(err)