viewer: add pdf viewer

Based on native browser rendering.

GitHub: closes #211

2 files changed, 51 insertions, 0 deletions

diff --git a/viewer/src/components/LdPdfViewer.vue b/viewer/src/components/LdPdfViewer.vue
new file mode 100644
index 0000000..78ff3d2
--- /dev/null
+++ b/viewer/src/components/LdPdfViewer.vue
@@ -0,0 +1,50 @@
+<!--
+-- ldgallery - A static generator which turns a collection of tagged
+--             pictures into a searchable web gallery.
+--
+-- Copyright (C) 2020  Pacien TRAN-GIRARD
+--
+-- This program is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU Affero General Public License as
+-- published by the Free Software Foundation, either version 3 of the
+-- License, or (at your option) any later version.
+--
+-- This program is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU Affero General Public License for more details.
+--
+-- You should have received a copy of the GNU Affero General Public License
+-- along with this program.  If not, see <https://www.gnu.org/licenses/>.
+-->
+
+<template>
+  <!-- intermediate container necessary to eliminate the double scrollbar -->
+  <div :class="$style.container">
+    <!-- prefer native browser PDF viewer if available -->
+    <object :class="$style.content" :data="itemResourceUrl()" type="application/pdf">
+      <!-- TODO: fallback to PDF.js (https://github.com/pacien/ldgallery/issues/212) -->
+      <ld-download :item="pdfItem" />
+    </object>
+  </div>
+</template>
+
+<script lang="ts">
+import { Component, Prop, Vue } from "vue-property-decorator";
+
+@Component export default class LdPdfViewer extends Vue {
+  @Prop({ required: true }) readonly pdfItem!: Gallery.PDF;
+
+  itemResourceUrl(): string {
+    return this.$galleryStore.resourceRoot + this.pdfItem.properties.resource;
+  }
+}
+</script>
+
+<style lang="scss" module>
+.container, .content {
+  width: 100%;
+  height: 100%;
+  overflow: hidden;
+}
+</style>
diff --git a/viewer/src/views/GalleryNavigation.vue b/viewer/src/views/GalleryNavigation.vue
index b5f06a2..e1c860b 100644
--- a/viewer/src/views/GalleryNavigation.vue
+++ b/viewer/src/views/GalleryNavigation.vue
@@ -25,6 +25,7 @@
     <gallery-directory v-else-if="checkType('directory')" :directory="$galleryStore.currentItem" />
     <ld-picture v-else-if="checkType('picture')" :picture="$galleryStore.currentItem" />
     <ld-plain-text-viewer v-else-if="checkType('plaintext')" :plain-text-item="$galleryStore.currentItem" />
+    <ld-pdf-viewer v-else-if="checkType('pdf')" :pdf-item="$galleryStore.currentItem" />
     <ld-download v-else :item="$galleryStore.currentItem" />
   </div>
 </template>