From c33fc76b028833a5e76fca78cdea9931aed65936 Mon Sep 17 00:00:00 2001
From: NunoSempere <nuno.sempere@protonmail.com>
Date: Sat, 6 Jan 2024 16:30:09 +0100
Subject: add cycling through tabs

---
 config.h |  10 +++++-----
 rose     | Bin 43280 -> 43184 bytes
 rose.c   |  27 +++++++++++----------------
 3 files changed, 16 insertions(+), 21 deletions(-)

diff --git a/config.h b/config.h
index bcb8000..5b1c333 100644
--- a/config.h
+++ b/config.h
@@ -37,6 +37,7 @@ typedef enum {
 	zoomin,
 	zoomout,
 	zoom_reset,
+	new_tab,
 	next_tab,
 	prev_tab,
 	close_tab,
@@ -44,7 +45,6 @@ typedef enum {
 	show_finder,
 	finder_next,
 	finder_prev,
-  new_tab,
   prettify,
   hide_bar
 } func;
@@ -66,13 +66,13 @@ static struct {
     { CTRL,        KEY(equal),      zoomin             },
     { CTRL,        KEY(minus),      zoomout            },
     { CTRL,        KEY(0),          zoom_reset         },
-    { CTRL,        KEY(Page_Up),  prev_tab           },
-    { CTRL,        KEY(Page_Down),    next_tab           },
-    { CTRL,        KEY(t),          next_tab           },
+    { CTRL,        KEY(Page_Up),    prev_tab           },
+    { CTRL,        KEY(Page_Down),  next_tab           },
+    { CTRL,        KEY(t),          new_tab            },
     { CTRL,        KEY(w),          close_tab          },
     { 0x0,         KEY(F11),        toggle_fullscreen  },
     { CTRL,        KEY(l),          show_searchbar     },
-    { CTRL,        KEY(semicolon),          hide_bar     },
+    { CTRL,        KEY(semicolon),  hide_bar           },
     { CTRL,        KEY(f),          show_finder        },
     { CTRL,        KEY(n),          finder_next        },
     { CTRL | SFT,  KEY(N),          finder_prev        },
diff --git a/rose b/rose
index 9252000..a34f1af 100755
Binary files a/rose and b/rose differ
diff --git a/rose.c b/rose.c
index bacb637..f7d004e 100644
--- a/rose.c
+++ b/rose.c
@@ -316,24 +316,19 @@ int handle_key(func id, GtkNotebook* notebook)
             (zoom = ZOOM));
         break;
 
-    case prev_tab:
-        if (gtk_notebook_get_current_page(notebook) == 0) {
-            gtk_notebook_set_current_page(notebook,
-                gtk_notebook_get_n_pages(notebook) - 1);
-        } else {
-            gtk_notebook_prev_page(notebook);
-        }
-
+    case prev_tab:; // declarations aren't statements
+        // <https://stackoverflow.com/questions/92396/why-cant-variables-be-declared-in-a-switch-statement>
+        int n = gtk_notebook_get_n_pages(notebook);
+        int k = gtk_notebook_get_current_page(notebook);
+        int l = (n + k - 1) % n;
+        gtk_notebook_set_current_page(notebook, l);
         break;
 
-    case next_tab:
-        if (gtk_notebook_get_current_page(notebook) == gtk_notebook_get_n_pages(notebook) - 1) {
-            notebook_append(notebook, NULL);
-            gtk_notebook_set_show_tabs(notebook, true);
-            webkit_web_view_set_zoom_level(notebook_get_webview(notebook), zoom);
-        } else {
-            gtk_notebook_next_page(notebook);
-        }
+    case next_tab:;
+        int m = gtk_notebook_get_n_pages(notebook);
+        int i = gtk_notebook_get_current_page(notebook);
+        int j = (i + 1) % m;
+        gtk_notebook_set_current_page(notebook, j);
         break;
 
     case close_tab:
-- 
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