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gtk: previous/next tab wraps

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This commit is contained in:
Mitchell Hashimoto
2023-02-25 10:53:15 -08:00
parent 6c6a3d6a5d
commit 35af0ef362
1 changed files with 17 additions and 8 deletions
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25
src/apprt/gtk.zig
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@ -312,10 +312,18 @@ const Window = struct {
fn gotoPreviousTab(self: *Window, surface: *Surface) void {
const page = getNotebookPage(@ptrCast(*c.GObject, surface.gl_area)) orelse return;
const page_idx = getNotebookPageIndex(page);
if (page_idx > 0) {
c.gtk_notebook_set_current_page(self.notebook, page_idx - 1);
self.focusCurrentTab();
}
// The next index is the previous or we wrap around.
const next_idx = if (page_idx > 0) page_idx - 1 else next_idx: {
const max = c.gtk_notebook_get_n_pages(self.notebook);
break :next_idx max -| 1;
};
// Do nothing if we have one tab
if (next_idx == page_idx) return;
c.gtk_notebook_set_current_page(self.notebook, next_idx);
self.focusCurrentTab();
}
/// Go to the next tab for a surface.
@ -323,10 +331,11 @@ const Window = struct {
const page = getNotebookPage(@ptrCast(*c.GObject, surface.gl_area)) orelse return;
const page_idx = getNotebookPageIndex(page);
const max = c.gtk_notebook_get_n_pages(self.notebook) -| 1;
if (page_idx < max) {
c.gtk_notebook_set_current_page(self.notebook, page_idx + 1);
self.focusCurrentTab();
}
const next_idx = if (page_idx < max) page_idx + 1 else 0;
if (next_idx == page_idx) return;
c.gtk_notebook_set_current_page(self.notebook, next_idx);
self.focusCurrentTab();
}
/// Go to the specific tab index.