diff options
Diffstat (limited to 'modules/ui-navigation.el')
| -rw-r--r-- | modules/ui-navigation.el | 46 |
1 files changed, 27 insertions, 19 deletions
diff --git a/modules/ui-navigation.el b/modules/ui-navigation.el index 00fa841e1..f53924ebb 100644 --- a/modules/ui-navigation.el +++ b/modules/ui-navigation.el @@ -75,26 +75,31 @@ resize -- each moves the active window's divider in the arrow's direction "<up>" #'windsize-up "<down>" #'windsize-down) -(defun cj/window-arrow-direction (key) - "Map a windsize arrow KEY description to a split direction. -KEY is one of \"<left>\" \"<right>\" \"<up>\" \"<down>\"; returns -left/right/above/below respectively, or nil for anything else." +(defun cj/window-pull-side (key) + "Map a `C-; b' arrow KEY to the side the revealed window opens on. +The arrow names the edge the current window shrinks toward, so the new +window opens on the *opposite* side and the current window keeps the +arrow's edge: <down> -> above, <up> -> below, <left> -> right, +<right> -> left. Returns nil for anything else." (pcase key - ("<left>" 'left) - ("<right>" 'right) - ("<up>" 'above) - ("<down>" 'below) + ("<down>" 'above) + ("<up>" 'below) + ("<left>" 'right) + ("<right>" 'left) (_ nil))) -(defun cj/window--pull-away (direction) - "Split the sole window toward DIRECTION and reveal the previous buffer. -DIRECTION is one of left/right/above/below. A new window opens on that -side showing `other-buffer'; focus stays on the original window so it -shrinks from that edge, letting a fullscreen window (e.g. a terminal) -share the frame. No-op when DIRECTION is nil." - (when direction - (let ((new (split-window (selected-window) nil direction))) +(defun cj/window--pull-away (side) + "Split the sole window so the previous buffer opens on SIDE. +SIDE is one of above/below/left/right -- opposite the pressed arrow, so +the current window keeps the arrow's edge. The new window is minimized +to a sliver (the current window keeps almost the whole frame) and shows +`other-buffer'; focus stays on the current window so the sticky arrows +then shrink it step by step via `windsize', exactly as resizing an +existing split does. No-op when SIDE is nil." + (when side + (let ((new (split-window (selected-window) nil side))) (set-window-buffer new (other-buffer (current-buffer) t)) + (minimize-window new) new))) (defun cj/window-resize-sticky () @@ -103,12 +108,15 @@ share the frame. No-op when DIRECTION is nil." nudging until any other key. Bound to `C-; b <left>/<right>/<up>/<down>'. When the selected window is the sole window in the frame there is no -divider to move, so the arrow instead pulls a new window away toward that -edge (`cj/window--pull-away'), revealing the previous buffer." +divider to move, so the first arrow instead splits a sliver away on the +side opposite the arrow (`cj/window--pull-away'), revealing the previous +buffer; the current window keeps almost the whole frame and the following +arrows shrink it via `windsize', so it reads the same as resizing an +existing split." (interactive) (let ((key (key-description (vector last-command-event)))) (if (one-window-p) - (cj/window--pull-away (cj/window-arrow-direction key)) + (cj/window--pull-away (cj/window-pull-side key)) (let ((cmd (keymap-lookup cj/window-resize-map key))) (when cmd (call-interactively cmd))))) (set-transient-map cj/window-resize-map t)) |