Add auto-hiding minibuffer support

* exwm-floating.el (exwm-floating--set-floating): Take auto-hiding
minibuffer into account when calculating available height.
(exwm-floating--unset-floating): Restack the container to avoid further
restacking.
* exwm-input.el (exwm-input--update-focus): Use more accurate restacking.
(exwm-input--on-minibuffer-setup): Replaced by
`exwm-layout--on-minibuffer-setup' and `exwm-workspace--on-minibuffer-setup'.
(exwm-input-command-whitelist, exwm-input--during-command)
(exwm-input--on-KeyPress-line-mode): The functionality of
`exwm-input-command-whitelist' is replaced by `exwm-input--during-command',
which can automatically tell whether functions like `read-event' are being
called.
(exwm-input--init): Add/remove corresponding hooks.
* exwm-layout.el (exwm-layout--on-minibuffer-setup): Also set input focus.
(exwm-layout--on-echo-area-change): New function for refreshing layout when
the size of echo area changes.
(exwm-layout--init): Track size changes for fixed minibuffer and echo area.
* exwm-manage.el (exwm-manage--on-ConfigureRequest): Never grant restacking
requests initiated by other clients.
* exwm-workspace.el (exwm-workspace--minibuffer): New variable for the
auto-hiding minibuffer.
(exwm-workspace-minibuffer-position): For setting the position of the
auto-hiding minibuffer.
(exwm-workspace-display-echo-area-timeout): Seconds before echo area
auto-hides.
(exwm-workspace--display-echo-area-timer): The corresponding timer.
(exwm-workspace-switch): Configure the auto-hiding minibuffer when
switching workspace.
(exwm-workspace--update-minibuffer): New function for adjusting the height
of the auto-hiding minibuffer.
(exwm-workspace--on-ConfigureNotify): New function for configuring the
container of the auto-hiding minibuffer.
(exwm-workspace--display-buffer): New function for forcing
`minibuffer-completion-help' to use the workspace frame.
(exwm-workspace--show-minibuffer, exwm-workspace--hide-minibuffer):
New functions for showing/hiding the auto-hiding minibuffer (container).
(exwm-workspace--on-minibuffer-setup, exwm-workspace--on-minibuffer-exit):
New functions called when the auto-hiding minibuffer entered/exists.
(exwm-workspace--on-echo-area-dirty, exwm-workspace--on-echo-area-clear):
New functions when the auto-hiding echo area is ready to show/hide.
(exwm-workspace--init): Set up the auto-hiding minibuffer and workspace
frames.  Track sizes changes for auto-hiding minibuffer and echo area.
No need to set OverrideRedirect on workspace frames.
* exwm.el (exwm--init-icccm-ewmh): Correct the value of _NET_WORKAREA.

1 files changed, 7 insertions, 6 deletions

diff --git a/exwm-manage.el b/exwm-manage.el
index 2f35b1475f..b32d677ea9 100644
--- a/exwm-manage.el
+++ b/exwm-manage.el
@@ -360,8 +360,7 @@ Would you like to kill it? "
   (let ((obj (make-instance 'xcb:ConfigureRequest))
         buffer edges)
     (xcb:unmarshal obj data)
-    (with-slots (stack-mode window sibling x y width height border-width
-                            value-mask)
+    (with-slots (window x y width height border-width value-mask)
         obj
       (exwm--log "ConfigureRequest from #x%x (#x%x) @%dx%d%+d%+d, border: %d"
                  window value-mask width height x y border-width)
@@ -391,14 +390,16 @@ Would you like to kill it? "
                                         :border-width 0 :override-redirect 0)
                                        exwm--connection))))
         (exwm--log "ConfigureWindow (preserve geometry)")
-        ;; Configure unmanaged windows
+        ;; Configure the unmanaged window without changing the stacking order.
         (xcb:+request exwm--connection
             (make-instance 'xcb:ConfigureWindow
                            :window window
-                           :value-mask value-mask
+                           :value-mask
+                           (logand value-mask
+                                   (lognot xcb:ConfigWindow:Sibling)
+                                   (lognot xcb:ConfigWindow:StackMode))
                            :x x :y y :width width :height height
-                           :border-width border-width
-                           :sibling sibling :stack-mode stack-mode)))))
+                           :border-width border-width)))))
   (xcb:flush exwm--connection))
 
 (defun exwm-manage--on-MapRequest (data _synthetic)