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Use X window borders
; This commit replaces the internal borders of Emacs frames with X ; window borders. This should make the flickering issue of floating X ; windows less serious. * exwm-floating.el (exwm-floating--border-pixel) (exwm-floating--border-colormap): New variables for storing border pixel and its colormap. (exwm-floating--set-floating): Do not set the internal border (and background color) of floating frames; do not take `exwm-floating-border-width' into account when calculating geometries; set the border of floating X window containers. (exwm-floating--unset-floating): No need to restore the position of X windows any more; hide the border of floating X window containers. (exwm-floating--init): Initialize the border pixel. * exwm-layout.el (exwm-layout-set-fullscreen) (exwm-layout-unset-fullscreen): Show/Hide container border respectively. * exwm-manage.el (exwm-manage--manage-window): Set the border pixel and colormap of X window containers. * exwm-workspace.el (exwm-workspace-move-window): Do not set the internal border and background color of floating frames. * exwm.el (exwm--on-ClientMessage): Simplify the code for calculating _NET_REQUEST_FRAME_EXTENTS.
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5 changed files with 66 additions and 36 deletions
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@ -32,6 +32,12 @@
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(defvar exwm-floating-border-width 1 "Border width of the floating window.")
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(defvar exwm-floating-border-width 1 "Border width of the floating window.")
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(defvar exwm-floating-border-color "navy"
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(defvar exwm-floating-border-color "navy"
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"Border color of the floating window.")
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"Border color of the floating window.")
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(defvar exwm-floating--border-pixel nil
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"Border pixel drawn around floating X windows.")
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(defvar exwm-floating--border-colormap nil
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"Colormap used by the border pixel.
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This is also used by X window containers.")
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(defvar exwm-floating-setup-hook nil
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(defvar exwm-floating-setup-hook nil
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"Normal hook run when an X window has been made floating, in the
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"Normal hook run when an X window has been made floating, in the
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@ -95,8 +101,6 @@ context of the corresponding buffer.")
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(get-buffer "*scratch*")))
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(get-buffer "*scratch*")))
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(make-frame
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(make-frame
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`((minibuffer . nil) ;use the default minibuffer.
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`((minibuffer . nil) ;use the default minibuffer.
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(background-color . ,exwm-floating-border-color)
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(internal-border-width . ,exwm-floating-border-width)
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(left . 10000)
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(left . 10000)
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(top . 10000)
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(top . 10000)
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(width . ,window-min-width)
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(width . ,window-min-width)
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@ -135,8 +139,7 @@ context of the corresponding buffer.")
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(window-pixel-height (minibuffer-window
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(window-pixel-height (minibuffer-window
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original-frame)))
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original-frame)))
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(* 2 (window-mode-line-height))
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(* 2 (window-mode-line-height))
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(window-header-line-height window)
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(window-header-line-height window)))
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(* 2 exwm-floating-border-width)))
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(display-height (* 2 (/ display-height 2)))) ;round to even
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(display-height (* 2 (/ display-height 2)))) ;round to even
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(if (> width display-width)
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(if (> width display-width)
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;; Too wide
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;; Too wide
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@ -229,14 +232,17 @@ context of the corresponding buffer.")
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(make-instance 'xcb:ReparentWindow
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(make-instance 'xcb:ReparentWindow
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:window outer-id :parent frame-container :x 0 :y 0))
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:window outer-id :parent frame-container :x 0 :y 0))
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;; Place the X window container.
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;; Place the X window container.
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;; Also show the floating border.
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(xcb:+request exwm--connection
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(xcb:+request exwm--connection
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(make-instance 'xcb:ConfigureWindow
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(make-instance 'xcb:ConfigureWindow
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:window container
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:window container
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:value-mask (eval-when-compile
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:value-mask (eval-when-compile
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(logior xcb:ConfigWindow:X
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(logior xcb:ConfigWindow:X
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xcb:ConfigWindow:Y))
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xcb:ConfigWindow:Y
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:x (- x exwm-floating-border-width)
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xcb:ConfigWindow:BorderWidth))
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:y (- y exwm-floating-border-width)))
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:x x
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:y y
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:border-width exwm-floating-border-width))
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(exwm-floating--set-allowed-actions id nil)
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(exwm-floating--set-allowed-actions id nil)
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(xcb:flush exwm--connection)
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(xcb:flush exwm--connection)
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;; Set window/buffer
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;; Set window/buffer
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@ -294,14 +300,6 @@ context of the corresponding buffer.")
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(make-instance 'xcb:ChangeWindowAttributes
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(make-instance 'xcb:ChangeWindowAttributes
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:window id :value-mask xcb:CW:EventMask
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:window id :value-mask xcb:CW:EventMask
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:event-mask exwm--client-event-mask))
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:event-mask exwm--client-event-mask))
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;; The X window might have been moved due to the floating border.
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(xcb:+request exwm--connection
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(make-instance 'xcb:ConfigureWindow
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:window id
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:value-mask (logior xcb:ConfigWindow:X
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xcb:ConfigWindow:Y)
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:x 0
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:y 0))
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;; Reparent the floating frame back to the root window.
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;; Reparent the floating frame back to the root window.
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(let ((frame-id (frame-parameter exwm--floating-frame 'exwm-outer-id))
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(let ((frame-id (frame-parameter exwm--floating-frame 'exwm-outer-id))
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(frame-container (frame-parameter exwm--floating-frame
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(frame-container (frame-parameter exwm--floating-frame
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@ -318,11 +316,14 @@ context of the corresponding buffer.")
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(make-instance 'xcb:DestroyWindow :window frame-container))))
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(make-instance 'xcb:DestroyWindow :window frame-container))))
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;; Put the X window container just above the Emacs frame container
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;; Put the X window container just above the Emacs frame container
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;; (the stacking order won't change from now on).
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;; (the stacking order won't change from now on).
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;; Also hide the possible floating border.
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(xcb:+request exwm--connection
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(xcb:+request exwm--connection
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(make-instance 'xcb:ConfigureWindow
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(make-instance 'xcb:ConfigureWindow
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:window exwm--container
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:window exwm--container
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:value-mask (logior xcb:ConfigWindow:Sibling
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:value-mask (logior xcb:ConfigWindow:BorderWidth
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xcb:ConfigWindow:Sibling
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xcb:ConfigWindow:StackMode)
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xcb:ConfigWindow:StackMode)
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:border-width 0
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:sibling (frame-parameter exwm-workspace--current
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:sibling (frame-parameter exwm-workspace--current
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'exwm-container)
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'exwm-container)
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:stack-mode xcb:StackMode:Above)))
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:stack-mode xcb:StackMode:Above)))
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@ -681,6 +682,29 @@ Both DELTA-X and DELTA-Y default to 1. This command should be bound locally."
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(defun exwm-floating--init ()
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(defun exwm-floating--init ()
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"Initialize floating module."
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"Initialize floating module."
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;; Check border width.
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(unless (and (integerp exwm-floating-border-width)
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(> exwm-floating-border-width 0))
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(setq exwm-floating-border-width 0))
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;; Initialize border pixel.
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(when (> exwm-floating-border-width 0)
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(setq exwm-floating--border-colormap
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(slot-value (car (slot-value
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(xcb:get-setup exwm--connection) 'roots))
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'default-colormap))
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(unless (stringp exwm-floating-border-color)
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(setq exwm-floating-border-color ""))
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(let* ((color (x-color-values exwm-floating-border-color))
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reply)
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(when color
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(setq reply (xcb:+request-unchecked+reply exwm--connection
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(make-instance 'xcb:AllocColor
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:cmap exwm-floating--border-colormap
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:red (pop color)
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:green (pop color)
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:blue (pop color))))
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(when reply
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(setq exwm-floating--border-pixel (slot-value reply 'pixel))))))
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;; Initialize cursors for moving/resizing a window
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;; Initialize cursors for moving/resizing a window
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(xcb:cursor:init exwm--connection)
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(xcb:cursor:init exwm--connection)
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(setq exwm-floating--cursor-move
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(setq exwm-floating--cursor-move
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@ -214,7 +214,9 @@
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(xcb:+request exwm--connection
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(xcb:+request exwm--connection
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(make-instance 'xcb:ConfigureWindow
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(make-instance 'xcb:ConfigureWindow
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:window exwm--container
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:window exwm--container
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:value-mask xcb:ConfigWindow:StackMode
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:value-mask (logior xcb:ConfigWindow:BorderWidth
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xcb:ConfigWindow:StackMode)
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:border-width 0
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:stack-mode xcb:StackMode:Above))
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:stack-mode xcb:StackMode:Above))
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(xcb:+request exwm--connection
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(xcb:+request exwm--connection
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(make-instance 'xcb:ewmh:set-_NET_WM_STATE
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(make-instance 'xcb:ewmh:set-_NET_WM_STATE
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@ -240,9 +242,11 @@
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:window exwm--container
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:window exwm--container
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:value-mask (eval-when-compile
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:value-mask (eval-when-compile
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(logior xcb:ConfigWindow:X
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(logior xcb:ConfigWindow:X
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xcb:ConfigWindow:Y))
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xcb:ConfigWindow:Y
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xcb:ConfigWindow:BorderWidth))
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:x (elt exwm--floating-frame-position 0)
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:x (elt exwm--floating-frame-position 0)
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:y (elt exwm--floating-frame-position 1)))
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:y (elt exwm--floating-frame-position 1)
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:border-width exwm-floating-border-width))
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;; Put the X window just above the Emacs frame.
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;; Put the X window just above the Emacs frame.
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(xcb:+request exwm--connection
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(xcb:+request exwm--connection
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(make-instance 'xcb:ConfigureWindow
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(make-instance 'xcb:ConfigureWindow
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@ -92,6 +92,8 @@ corresponding buffer.")
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:window exwm--root
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:window exwm--root
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:data (vconcat (mapcar #'car exwm--id-buffer-alist)))))
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:data (vconcat (mapcar #'car exwm--id-buffer-alist)))))
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(defvar exwm-floating--border-colormap)
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(defvar exwm-floating--border-pixel)
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(defvar exwm-workspace--current)
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(defvar exwm-workspace--current)
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(defvar exwm-workspace--switch-history-outdated)
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(defvar exwm-workspace--switch-history-outdated)
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(defvar exwm-workspace-current-index)
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(defvar exwm-workspace-current-index)
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@ -243,11 +245,16 @@ corresponding buffer.")
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:class xcb:WindowClass:InputOutput
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:class xcb:WindowClass:InputOutput
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:visual 0
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:visual 0
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:value-mask (logior xcb:CW:BackPixmap
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:value-mask (logior xcb:CW:BackPixmap
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(if exwm-floating--border-pixel
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xcb:CW:BorderPixel 0)
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xcb:CW:OverrideRedirect
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xcb:CW:OverrideRedirect
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xcb:CW:EventMask)
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xcb:CW:EventMask
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xcb:CW:Colormap)
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:background-pixmap xcb:BackPixmap:ParentRelative
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:background-pixmap xcb:BackPixmap:ParentRelative
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:border-pixel exwm-floating--border-pixel
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:override-redirect 1
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:override-redirect 1
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:event-mask xcb:EventMask:SubstructureRedirect))
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:event-mask xcb:EventMask:SubstructureRedirect
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:colormap exwm-floating--border-colormap))
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(exwm--debug
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(exwm--debug
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(xcb:+request exwm--connection
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(xcb:+request exwm--connection
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(make-instance 'xcb:ewmh:set-_NET_WM_NAME
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(make-instance 'xcb:ewmh:set-_NET_WM_NAME
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@ -636,9 +636,6 @@ INDEX must not exceed the current number of workspaces."
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:window id
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:window id
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:data (exwm-workspace--position exwm--frame)))))
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:data (exwm-workspace--position exwm--frame)))))
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(defvar exwm-floating-border-width)
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(defvar exwm-floating-border-color)
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(declare-function exwm-layout--show "exwm-layout.el" (id &optional window))
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(declare-function exwm-layout--show "exwm-layout.el" (id &optional window))
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(declare-function exwm-layout--hide "exwm-layout.el" (id))
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(declare-function exwm-layout--hide "exwm-layout.el" (id))
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(declare-function exwm-layout--refresh "exwm-layout.el")
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(declare-function exwm-layout--refresh "exwm-layout.el")
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@ -691,9 +688,6 @@ INDEX must not exceed the current number of workspaces."
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(get-buffer "*scratch*")))
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(get-buffer "*scratch*")))
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(make-frame
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(make-frame
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`((minibuffer . ,(minibuffer-window frame))
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`((minibuffer . ,(minibuffer-window frame))
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(background-color . ,exwm-floating-border-color)
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(internal-border-width
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. ,exwm-floating-border-width)
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(left . 10000)
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(left . 10000)
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(top . 10000)
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(top . 10000)
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(width . ,window-min-width)
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(width . ,window-min-width)
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19
exwm.el
19
exwm.el
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@ -399,19 +399,20 @@
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;; _NET_REQUEST_FRAME_EXTENTS
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;; _NET_REQUEST_FRAME_EXTENTS
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((= type xcb:Atom:_NET_REQUEST_FRAME_EXTENTS)
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((= type xcb:Atom:_NET_REQUEST_FRAME_EXTENTS)
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(let ((buffer (exwm--id->buffer id))
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(let ((buffer (exwm--id->buffer id))
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left right top btm)
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top btm)
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(if (or (not buffer)
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(if (or (not buffer)
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(not (buffer-local-value 'exwm--floating-frame buffer)))
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(not (buffer-local-value 'exwm--floating-frame buffer)))
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(setq left 0 right 0 top 0 btm 0)
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(setq top 0
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(setq left exwm-floating-border-width
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btm 0)
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right exwm-floating-border-width
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(setq top (window-header-line-height)
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top (+ exwm-floating-border-width (window-header-line-height))
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btm (window-mode-line-height)))
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btm (+ exwm-floating-border-width
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(window-mode-line-height))))
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(xcb:+request exwm--connection
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(xcb:+request exwm--connection
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(make-instance 'xcb:ewmh:set-_NET_FRAME_EXTENTS
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(make-instance 'xcb:ewmh:set-_NET_FRAME_EXTENTS
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:window id :left left :right right
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:window id
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:top top :bottom btm)))
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:left 0
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:right 0
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:top top
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:bottom btm)))
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(xcb:flush exwm--connection))
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(xcb:flush exwm--connection))
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;; _NET_WM_DESKTOP.
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;; _NET_WM_DESKTOP.
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((= type xcb:Atom:_NET_WM_DESKTOP)
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((= type xcb:Atom:_NET_WM_DESKTOP)
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