added filter for single canvas

build/src/AllAnnotationsPanel.jsx

@@ -1,4 +1,5 @@
 import React, { useEffect, useMemo, useState } from 'react';
+import { useSelector } from 'react-redux';
 import {
   ConnectedCompanionWindow as CompanionWindow,
   OSDReferences,
@@ -578,7 +579,35 @@ const allAnnotationsPanelPlugin = {
   }),
 };
 
-const AllAnnotationsButton = () => <AllAnnotationsIcon fontSize="small" />;
+const AllAnnotationsButton = () => {
+  const canvasCount = useSelector((state) => {
+    // Islandora's Mirador viewer normally contains a single Mirador window.
+    const windowId = Object.keys(state?.windows || {})[0];
+    if (!windowId) return 0;
+
+    const manifestId = state.windows?.[windowId]?.manifestId;
+    const manifest = state.manifests?.[manifestId]?.json;
+
+    if (Array.isArray(manifest?.items)) {
+      return manifest.items.filter(
+        (item) => item?.type === 'Canvas'
+      ).length;
+    }
+
+    if (Array.isArray(manifest?.sequences?.[0]?.canvases)) {
+      return manifest.sequences[0].canvases.length;
+    }
+
+    return 0;
+  });
+
+  if (canvasCount <= 1) {
+    return null;
+  }
+
+  return <AllAnnotationsIcon fontSize="small" />;
+};
+
 AllAnnotationsButton.value = PANEL_KEY;
 
 const allAnnotationsButtonPlugin = {
@@ -590,3 +619,4 @@ const allAnnotationsButtonPlugin = {
 };
 
 export { allAnnotationsPanelPlugin, allAnnotationsButtonPlugin };
+

islandora_mirador_annotations.libraries.yml

@@ -1,5 +1,5 @@
 annotated_mirador:
-  version: 0.2.5
+  version: 0.2.8
   js:
     dist/main.js: { minified: true, preprocess: false }
   css:

islandora_mirador_annotations.module

@@ -70,6 +70,7 @@ function islandora_mirador_annotations_js_settings_alter(array &$settings, Attac
     // Core otherwise only draws annotations while the stock annotations companion window is open.
     $viewer['window']['forceDrawAnnotations'] = TRUE;
     $viewer['window']['panels'] = $viewer['window']['panels'] ?? [];
+    $viewer['window']['panels']['annotations'] = TRUE;
     $viewer['window']['panels']['allAnnotations'] = TRUE;
 
     $viewer['translations'] = $viewer['translations'] ?? [];