Improving genre search started from the manga page of a popular manga (#4375)

Co-authored-by: E3FxGaming <E3FxGaming@users.noreply.github.com>

app/src/main/java/eu/kanade/tachiyomi/ui/manga/MangaController.kt

@@ -638,6 +638,29 @@ class MangaController :
         }
     }
 
+    /**
+     * Performs a genre search using the provided genre name.
+     *
+     * @param genreName the search genre to the parent controller
+     */
+    fun performGenreSearch(genreName: String) {
+        if (router.backstackSize < 2) {
+            return
+        }
+
+        val previousController = router.backstack[router.backstackSize - 2].controller
+        val presenterSource = presenter.source
+
+        if (previousController is BrowseSourceController &&
+            presenterSource is HttpSource
+        ) {
+            router.handleBack()
+            previousController.searchWithGenre(genreName)
+        } else {
+            performSearch(genreName)
+        }
+    }
+
     private fun shareCover() {
         try {
             val activity = activity!!

app/src/main/java/eu/kanade/tachiyomi/ui/manga/info/MangaInfoHeaderAdapter.kt

@@ -262,11 +262,11 @@ class MangaInfoHeaderAdapter(
                 if (!manga.genre.isNullOrBlank()) {
                     binding.mangaGenresTagsCompactChips.setChips(
                         manga.getGenres(),
-                        controller::performSearch
+                        controller::performGenreSearch
                     )
                     binding.mangaGenresTagsFullChips.setChips(
                         manga.getGenres(),
-                        controller::performSearch
+                        controller::performGenreSearch
                     )
                 } else {
                     binding.mangaGenresTagsCompactChips.isVisible = false