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Support setting system tray background color to current workspace's

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* exwm-systemtray.el (exwm-systemtray-background-color): Add
support for using current workspace's background color as system
tray background color.
(exwm-systemtray--refresh-background-color): New function to set
the background color upon theme changes or workspace switches.
(exwm-systemtray--on-workspace-switch)
(exwm-systemtray--on-theme-change): Use it.
(exwm-systemtray--init): React to theme changes.
This commit is contained in:
Adrián Medraño Calvo 2022-11-04 00:00:00 +00:00
parent b8d621041a
commit 07b9b2ccf8
1 changed files with 27 additions and 7 deletions
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34
exwm-systemtray.el
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@ -75,7 +75,7 @@ You shall use the default value if using auto-hide minibuffer."
(defcustom exwm-systemtray-background-color
(if (exwm-systemtray--transparency-supported-p)
"black"
'workspace-background
'transparent)
"Background color of systemtray.
This should be a color, the symbol `workspace-background' for the background
@ -85,16 +85,17 @@ background.
Transparent background is not yet supported when Emacs uses 32-bit depth
visual, as reported by `x-display-planes'. The X resource \"Emacs.visualClass:
TrueColor-24\" can be used to force Emacs to use 24-bit depth."
:type '(choice (const :tag "Transparent" 'transparent)
(color))
:type '(choice (const :tag "Transparent" transparent)
(const :tag "Frame background" workspace-background)
(color :tag "Color"))
:initialize #'custom-initialize-default
:set (lambda (symbol value)
(when (and (eq value 'transparent)
(not (exwm-systemtray--transparency-supported-p)))
(display-warning 'exwm-systemtray
"Transparent background is not supported yet when \
using 32-bit depth. Using black instead.")
(setq value "black"))
using 32-bit depth. Using `workspace-background' instead.")
(setq value 'workspace-background))
(set-default symbol value)
(when (and exwm-systemtray--connection
exwm-systemtray--embedder-window)
@ -256,6 +257,12 @@ using 32-bit depth. Using black instead.")
:window exwm-systemtray--embedder-window))))
(xcb:flush exwm-systemtray--connection))
(defun exwm-systemtray--refresh-background-color ()
"Refresh background color after theme change or workspace switch."
;; Only `workspace-background' is dependent on current theme and workspace.
(when (eq 'workspace-background exwm-systemtray-background-color)
(exwm-systemtray--set-background-color)))
(defun exwm-systemtray--set-background-color ()
"Change the background color of the embedder.
The color is set according to `exwm-systemtray-background-color'.
@ -268,8 +275,11 @@ window; unmap & map are necessary for the background color to take effect."
((transparent nil) ; nil means transparent as well
(if (exwm-systemtray--transparency-supported-p)
nil
(message "%s" "[EXWM] system tray does not support transparent background; using black instead")
"black"))
(message "%s" "[EXWM] system tray does not support \
`transparent' background; using `workspace-background' instead")
(face-background 'default exwm-workspace--current)))
(workspace-background
(face-background 'default exwm-workspace--current))
(t exwm-systemtray-background-color)))
(background-pixel (exwm--color->pixel color)))
(xcb:+request exwm-systemtray--connection
@ -437,8 +447,13 @@ indicate how to support actual transparency."
3)
exwm-workspace--frame-y-offset
exwm-systemtray-height))))
(exwm-systemtray--refresh-background-color)
(exwm-systemtray--refresh))
(defun exwm-systemtray--on-theme-change ()
"Refresh system tray upon theme change."
(exwm-systemtray--refresh-background-color))
(defun exwm-systemtray--refresh-all ()
"Reposition/Refresh the system tray."
(exwm--log)
@ -608,6 +623,9 @@ indicate how to support actual transparency."
(add-hook 'exwm-workspace-switch-hook #'exwm-systemtray--on-workspace-switch)
(add-hook 'exwm-workspace--update-workareas-hook
#'exwm-systemtray--refresh-all)
;; Add hook to update background colors.
(add-hook 'enable-theme-functions #'exwm-systemtray--on-theme-change)
(add-hook 'disable-theme-functions #'exwm-systemtray--on-theme-change)
(add-hook 'menu-bar-mode-hook #'exwm-systemtray--refresh-all)
(add-hook 'tool-bar-mode-hook #'exwm-systemtray--refresh-all)
(when (boundp 'exwm-randr-refresh-hook)
@ -642,6 +660,8 @@ indicate how to support actual transparency."
#'exwm-systemtray--on-workspace-switch)
(remove-hook 'exwm-workspace--update-workareas-hook
#'exwm-systemtray--refresh-all)
(remove-hook 'enable-theme-functions #'exwm-systemtray--on-theme-change)
(remove-hook 'disable-theme-functions #'exwm-systemtray--on-theme-change)
(remove-hook 'menu-bar-mode-hook #'exwm-systemtray--refresh-all)
(remove-hook 'tool-bar-mode-hook #'exwm-systemtray--refresh-all)
(when (boundp 'exwm-randr-refresh-hook)