diff options
| -rw-r--r-- | exwm-core.el | 15 | ||||
| -rw-r--r-- | exwm-workspace.el | 21 |
2 files changed, 32 insertions, 4 deletions
diff --git a/exwm-core.el b/exwm-core.el index 5356ef9b97e1..995b590dc582 100644 --- a/exwm-core.el +++ b/exwm-core.el @@ -193,6 +193,21 @@ least SECS seconds later." (lsh (lsh (pop rgb) -8) 8) (lsh (pop rgb) -8))))) +(defun exwm--get-visual-depth-colormap (conn id) + "Get visual, depth and colormap from X window ID. +Return a three element list with the respective results." + (let (ret-visual ret-depth ret-colormap) + (with-slots (visual colormap) + (xcb:+request-unchecked+reply conn + (make-instance 'xcb:GetWindowAttributes :window id)) + (setq ret-visual visual) + (setq ret-colormap colormap)) + (with-slots (depth) + (xcb:+request-unchecked+reply conn + (make-instance 'xcb:GetGeometry :drawable id)) + (setq ret-depth depth)) + (list ret-visual ret-depth ret-colormap))) + ;; Internal variables (defvar-local exwm--id nil) ;window ID (defvar-local exwm--configurations nil) ;initial configurations. diff --git a/exwm-workspace.el b/exwm-workspace.el index 083c8ac89390..fc68e1b07053 100644 --- a/exwm-workspace.el +++ b/exwm-workspace.el @@ -1326,7 +1326,8 @@ Please check `exwm-workspace--minibuffer-own-frame-p' first." (let ((outer-id (string-to-number (frame-parameter frame 'outer-window-id))) (window-id (string-to-number (frame-parameter frame 'window-id))) - (container (xcb:generate-id exwm--connection))) + (container (xcb:generate-id exwm--connection)) + frame-colormap frame-visual frame-depth) ;; Save window IDs (set-frame-parameter frame 'exwm-outer-id outer-id) (set-frame-parameter frame 'exwm-id window-id) @@ -1340,9 +1341,17 @@ Please check `exwm-workspace--minibuffer-own-frame-p' first." (dolist (param '(exwm-randr-monitor exwm-geometry)) (set-frame-parameter frame param (frame-parameter w param)))) + ;; Support transparency on the container X window when the Emacs frame + ;; does. Note that in addition to setting the visual, colormap and depth + ;; we must also reset the `:border-pixmap', as its default value is + ;; relative to the parent window, which might have a different depth. + (let* ((vdc (exwm--get-visual-depth-colormap exwm--connection outer-id))) + (setq frame-visual (car vdc)) + (setq frame-depth (cadr vdc)) + (setq frame-colormap (caddr vdc))) (xcb:+request exwm--connection (make-instance 'xcb:CreateWindow - :depth 0 + :depth frame-depth :wid container :parent exwm--root :x -1 @@ -1351,10 +1360,14 @@ Please check `exwm-workspace--minibuffer-own-frame-p' first." :height 1 :border-width 0 :class xcb:WindowClass:InputOutput - :visual 0 + :visual frame-visual :value-mask (logior xcb:CW:BackPixmap + xcb:CW:BorderPixel + xcb:CW:Colormap xcb:CW:OverrideRedirect) - :background-pixmap xcb:BackPixmap:ParentRelative + :background-pixmap xcb:BackPixmap:None + :border-pixel 0 + :colormap frame-colormap :override-redirect 1)) (xcb:+request exwm--connection (make-instance 'xcb:ConfigureWindow |