Emacs: Add keybindings for tab-bar and enable tab-line.

init.d/basics/ui.el

@@ -1,6 +1,6 @@
 ;;; ui.el --- Configure user interfaces. -*- lexical-binding: t; -*-
 
-;; Time-stamp: <2019-12-23T00:13:17+00:00>
+;; Time-stamp: <2019-12-26T21:30:02+0100>
 
 ;;; Commentary:
 ;; * treemacs
@@ -146,5 +146,28 @@
         (:face font-lock-comment-face)))))))
   )
 
+;; Switch between named persistent window configurations.
+(when (>= emacs-major-version 27)
+  (use-package tab-bar
+    :bind
+    ("C-<prior>" . tab-bar-switch-to-prev-tab)
+    ("C-<next>" . tab-bar-switch-to-next-tab)
+    ))
+
+;; Shows tabs of all visible buffers per window.
+(when (>= emacs-major-version 27)
+  (use-package tab-line
+    :custom-face
+    (tab-line ((t (:inherit ruler-mode-default))))
+    (tab-line-tab ((t (:inherit ruler-mode-default))))
+    (tab-line-tab-inactive ((t (:inherit tab-line-tab))))
+    (tab-line-tab-current ((t (:inherit tab-line-tab
+                                        :background "grey10"
+                                        :foreground "grey70"))))
+
+    :hook
+    (find-file .  tab-line-mode)
+    ))
+
 (provide 'basics/ui)
 ;;; ui.el ends here

init.d/programming/common.el

@@ -1,6 +1,6 @@
 ;;; common.el --- Common programming settings. -*- lexical-binding: t; -*-
 
-;; Time-stamp: <2019-12-26T06:24:21+00:00>
+;; Time-stamp: <2019-12-26T20:41:06+0100>
 
 ;;; Commentary:
 
@@ -177,7 +177,7 @@
 ;; Fold code.
 (use-package fold-dwim
   :bind
-  ("C-x t" . fold-dwim-toggle)
+  ("C-c f" . fold-dwim-toggle)
 
   :hook
   (prog-mode . hs-minor-mode)