Improve code robustness.

* exwm-layout.el (exwm-layout-unset-fullscreen)
	(exwm-layout-set-fullscreen): Use `user-error' rather than
	`cl-assert'.
	* exwm-input.el (exwm-input--set-focus): Silently accept unknown
	ids. (exwm-input--grab-keyboard) (exwm-input--release-keyboard):
        Silently ignore calls for windows that have no buffer.
	* exwm-manage.el (exwm-manage--kill-client): Don't throw error
	when trying to kill a vanished window.
This commit is contained in:
Philip 2015-08-16 18:53:04 +00:00
parent d998b42b89
commit d1806e9188
3 changed files with 45 additions and 43 deletions

View file

@ -56,26 +56,27 @@ It's updated in several occasions, and only used by `exwm-input--set-focus'.")
(defun exwm-input--set-focus (id)
"Set input focus to window ID in a proper way."
(with-current-buffer (exwm--id->buffer id)
(if (and (not exwm--hints-input)
(memq xcb:Atom:WM_TAKE_FOCUS exwm--protocols))
(progn
(exwm--log "Focus on #x%x with WM_TAKE_FOCUS" id)
(xcb:+request exwm--connection
(make-instance 'xcb:icccm:SendEvent
:destination id
:event (xcb:marshal
(make-instance 'xcb:icccm:WM_TAKE_FOCUS
:window id
:time
exwm-input--timestamp)
exwm--connection))))
(exwm--log "Focus on #x%x with SetInputFocus" id)
(xcb:+request exwm--connection
(make-instance 'xcb:SetInputFocus
:revert-to xcb:InputFocus:Parent :focus id
:time xcb:Time:CurrentTime)))
(xcb:flush exwm--connection)))
(when (exwm--id->buffer id)
(with-current-buffer (exwm--id->buffer id)
(if (and (not exwm--hints-input)
(memq xcb:Atom:WM_TAKE_FOCUS exwm--protocols))
(progn
(exwm--log "Focus on #x%x with WM_TAKE_FOCUS" id)
(xcb:+request exwm--connection
(make-instance 'xcb:icccm:SendEvent
:destination id
:event (xcb:marshal
(make-instance 'xcb:icccm:WM_TAKE_FOCUS
:window id
:time
exwm-input--timestamp)
exwm--connection))))
(exwm--log "Focus on #x%x with SetInputFocus" id)
(xcb:+request exwm--connection
(make-instance 'xcb:SetInputFocus
:revert-to xcb:InputFocus:Parent :focus id
:time xcb:Time:CurrentTime)))
(xcb:flush exwm--connection))))
(defvar exwm-input--focus-window nil "The (Emacs) window to be focused.")
(defvar exwm-input--redirected nil
@ -311,27 +312,27 @@ It's updated in several occasions, and only used by `exwm-input--set-focus'.")
(defun exwm-input--grab-keyboard (&optional id)
"Grab all key events on window ID."
(unless id (setq id (exwm--buffer->id (window-buffer))))
(cl-assert id)
(when (xcb:+request-checked+request-check exwm--connection
(make-instance 'xcb:GrabKey
:owner-events 0 :grab-window id
:modifiers xcb:ModMask:Any
:key xcb:Grab:Any
:pointer-mode xcb:GrabMode:Async
:keyboard-mode xcb:GrabMode:Async))
(exwm--log "Failed to grab keyboard for #x%x" id))
(setq exwm--on-KeyPress 'exwm-input--on-KeyPress-line-mode))
(when id
(when (xcb:+request-checked+request-check exwm--connection
(make-instance 'xcb:GrabKey
:owner-events 0 :grab-window id
:modifiers xcb:ModMask:Any
:key xcb:Grab:Any
:pointer-mode xcb:GrabMode:Async
:keyboard-mode xcb:GrabMode:Async))
(exwm--log "Failed to grab keyboard for #x%x" id))
(setq exwm--on-KeyPress 'exwm-input--on-KeyPress-line-mode)))
(defun exwm-input--release-keyboard (&optional id)
"Ungrab all key events on window ID."
(unless id (setq id (exwm--buffer->id (window-buffer))))
(cl-assert id)
(when (xcb:+request-checked+request-check exwm--connection
(make-instance 'xcb:UngrabKey
:key xcb:Grab:Any :grab-window id
:modifiers xcb:ModMask:Any))
(exwm--log "Failed to release keyboard for #x%x" id))
(setq exwm--on-KeyPress 'exwm-input--on-KeyPress-char-mode))
(when id
(when (xcb:+request-checked+request-check exwm--connection
(make-instance 'xcb:UngrabKey
:key xcb:Grab:Any :grab-window id
:modifiers xcb:ModMask:Any))
(exwm--log "Failed to release keyboard for #x%x" id))
(setq exwm--on-KeyPress 'exwm-input--on-KeyPress-char-mode)))
(defun exwm-input-grab-keyboard (&optional id)
"Switch to line-mode."