feat: Add bottom navigation for OPDS modal and enhance styling for better visibility

abogen/integrations/calibre_opds.py

@@ -6,8 +6,8 @@ import re
 from collections import deque
 from dataclasses import dataclass, field
 from pathlib import PurePosixPath
-from typing import Any, Deque, Dict, Iterable, Iterator, List, Mapping, Optional, Set
-from urllib.parse import urljoin, urlparse
+from typing import Any, Deque, Dict, Iterable, Iterator, List, Mapping, Optional, Set, Tuple
+from urllib.parse import quote, urljoin, urlparse
 from xml.etree import ElementTree as ET
 
 import httpx
@@ -202,13 +202,26 @@ class CalibreOPDSClient:
         cleaned = (query or "").strip()
         if not cleaned:
             return self.fetch_feed()
-        candidates = [
+
+        base_feed: Optional[OPDSFeed] = None
+        try:
+            base_feed = self.fetch_feed()
+        except CalibreOPDSError:
+            pass
+
+        candidates: List[Tuple[Optional[str], Optional[Mapping[str, Any]]]] = []
+        if base_feed:
+            search_url = self._resolve_search_url(base_feed, cleaned)
+            if search_url:
+                candidates.append((search_url, None))
+
+        candidates.extend([
             ("search", {"query": cleaned}),
             ("search", {"q": cleaned}),
             (None, {"search": cleaned}),
-        ]
+        ])
+
         last_error: Optional[Exception] = None
-        base_feed: Optional[OPDSFeed] = None
         base_combined: Optional[OPDSFeed] = None
         for path, params in candidates:
             try:
@@ -1037,6 +1050,20 @@ class CalibreOPDSClient:
             return dataclasses.replace(template, entries=collected)
         return dataclasses.replace(template, entries=[])
 
+    def _resolve_search_url(self, feed: OPDSFeed, query: str) -> Optional[str]:
+        link = self._resolve_link(feed.links, "search")
+        if not link:
+            link = self._resolve_link(feed.links, "http://opds-spec.org/search")
+        
+        if not link or not link.href:
+            return None
+            
+        href = link.href.strip()
+        if "{searchTerms}" in href:
+            return href.replace("{searchTerms}", quote(query))
+            
+        return href
+
 
 def feed_to_dict(feed: OPDSFeed) -> Dict[str, Any]:
     """Helper used by APIs to convert a feed into JSON-serialisable payloads."""

abogen/web/static/find_books.js

@@ -5,6 +5,7 @@ if (modal && browser) {
   const statusEl = browser.querySelector('[data-role="opds-status"]');
   const resultsEl = browser.querySelector('[data-role="opds-results"]');
   const navEl = browser.querySelector('[data-role="opds-nav"]');
+  const navBottomEl = browser.querySelector('[data-role="opds-nav-bottom"]');
   const alphaPickerEl = browser.querySelector('[data-role="opds-alpha-picker"]');
   const tabsEl = modal.querySelector('[data-role="opds-tabs"]');
   const searchForm = modal.querySelector('[data-role="opds-search"]');
@@ -247,17 +248,10 @@ if (modal && browser) {
     if (!alphaPickerEl || state.query) {
       return false;
     }
-    if (!Array.isArray(entries) || entries.length < 6) {
+    if (!Array.isArray(entries) || entries.length === 0) {
       return false;
     }
-    const mode = deriveBrowseMode();
-    const counts = stats || computeEntryStats(entries);
-    const hasNavigation = counts[EntryTypes.NAVIGATION] > 0;
-    if (mode === 'generic' && !hasNavigation) {
-      return false;
-    }
-    const alphabetCounts = collectAlphabetCounts(entries);
-    return alphabetCounts.size > 1;
+    return true;
   };
 
   const refreshAlphabetActiveState = () => {
@@ -542,10 +536,14 @@ if (modal && browser) {
   };
 
   const renderNav = (links) => {
-    if (!navEl) {
+    const targets = [navEl, navBottomEl].filter(Boolean);
+    if (!targets.length) {
       return;
     }
-    navEl.innerHTML = '';
+    targets.forEach((el) => {
+      el.innerHTML = '';
+    });
+
     const descriptors = [
       { key: 'up', label: 'Up one level' },
       { key: 'previous', label: 'Previous page' },
@@ -556,11 +554,18 @@ if (modal && browser) {
         return;
       }
       const link = resolveRelLink(links, key) || resolveRelLink(links, `/${key}`);
+      const hasLink = Boolean(link && link.href);
+
+      if (!hasLink && key !== 'previous') {
+        return;
+      }
+
+      targets.forEach((targetEl) => {
         const button = document.createElement('button');
         button.type = 'button';
         button.className = 'button button--ghost';
         button.textContent = label;
-      const hasLink = Boolean(link && link.href);
+
         if (hasLink) {
           button.addEventListener('click', () => {
             const targetQuery = key === 'up' ? '' : state.query;
@@ -570,12 +575,14 @@ if (modal && browser) {
         } else if (key === 'previous') {
           button.disabled = true;
           button.setAttribute('aria-disabled', 'true');
-      } else {
-        return;
         }
-      navEl.appendChild(button);
+        targetEl.appendChild(button);
+      });
+    });
+
+    targets.forEach((el) => {
+      el.hidden = !el.childElementCount;
     });
-    navEl.hidden = !navEl.childElementCount;
   };
 
   const createEntry = (entry) => {

abogen/web/static/styles.css

@@ -654,7 +654,22 @@ body {
   display: flex;
   flex-wrap: wrap;
   gap: 0.35rem;
-  margin: 0.35rem 0 0.65rem;
+  margin: 0;
+  padding: 0.75rem 0 1rem;
+  position: sticky;
+  top: 0;
+  z-index: 20;
+  background: var(--bg);
+  box-shadow: 0 10px 20px -5px rgba(0, 0, 0, 0.2);
+  margin-bottom: 1rem;
+  border-bottom: 1px solid var(--panel-border);
+}
+
+.opds-modal__nav--bottom {
+  margin-top: 1rem;
+  padding-top: 1.5rem;
+  border-top: 1px solid var(--panel-border);
+  justify-content: center;
 }
 
 .opds-alpha-picker__button {

abogen/web/templates/find_books.html

@@ -76,6 +76,7 @@
         <div class="opds-modal__results-wrap">
           <ul class="opds-modal__results" data-role="opds-results"></ul>
         </div>
+        <div class="opds-modal__nav opds-modal__nav--bottom" data-role="opds-nav-bottom"></div>
       </div>
     </div>
   </div>