feat: Set sleep cover from BMP viewer (#1104)

lib/FsHelpers/FsHelpers.cpp

@@ -1,5 +1,6 @@
 #include "FsHelpers.h"
 
+#include <algorithm>
 #include <cctype>
 #include <cstring>
 #include <vector>
@@ -42,6 +43,58 @@ std::string normalisePath(const std::string& path) {
   return result;
 }
 
+void sortFileList(std::vector<std::string>& strs) {
+  std::sort(begin(strs), end(strs), [](const std::string& str1, const std::string& str2) {
+    // Directories first
+    bool isDir1 = str1.back() == '/';
+    bool isDir2 = str2.back() == '/';
+    if (isDir1 != isDir2) return isDir1;
+
+    // Start naive natural sort
+    const char* s1 = str1.c_str();
+    const char* s2 = str2.c_str();
+
+    // Iterate while both strings have characters
+    while (*s1 && *s2) {
+      // Check if both are at the start of a number
+      if (isdigit(*s1) && isdigit(*s2)) {
+        // Skip leading zeros and track them
+        const char* start1 = s1;
+        const char* start2 = s2;
+        while (*s1 == '0') s1++;
+        while (*s2 == '0') s2++;
+
+        // Count digits to compare lengths first
+        int len1 = 0, len2 = 0;
+        while (isdigit(s1[len1])) len1++;
+        while (isdigit(s2[len2])) len2++;
+
+        // Different length so return smaller integer value
+        if (len1 != len2) return len1 < len2;
+
+        // Same length so compare digit by digit
+        for (int i = 0; i < len1; i++) {
+          if (s1[i] != s2[i]) return s1[i] < s2[i];
+        }
+
+        // Numbers equal so advance pointers
+        s1 += len1;
+        s2 += len2;
+      } else {
+        // Regular case-insensitive character comparison
+        char c1 = tolower(*s1);
+        char c2 = tolower(*s2);
+        if (c1 != c2) return c1 < c2;
+        s1++;
+        s2++;
+      }
+    }
+
+    // One string is prefix of other
+    return *s1 == '\0' && *s2 != '\0';
+  });
+}
+
 bool checkFileExtension(std::string_view fileName, const char* extension) {
   const size_t extLen = strlen(extension);
   if (fileName.length() < extLen) {

lib/FsHelpers/FsHelpers.h

@@ -3,11 +3,14 @@
 
 #include <string>
 #include <string_view>
+#include <vector>
 
 namespace FsHelpers {
 
 std::string normalisePath(const std::string& path);
 
+void sortFileList(std::vector<std::string>& strs);
+
 /**
  * Check if the given filename ends with the specified extension (case-insensitive).
  */

lib/I18n/translations/english.yaml

@@ -293,6 +293,7 @@ STR_UPLOAD: "Upload"
 STR_BOOK_S_STYLE: "Book's Style"
 STR_EMBEDDED_STYLE: "Embedded Style"
 STR_OPDS_SERVER_URL: "OPDS Server URL"
+STR_SET_SLEEP_COVER: "Set Cover"
 STR_FOOTNOTES: "Footnotes"
 STR_NO_FOOTNOTES: "No footnotes on this page"
 STR_LINK: "[link]"