+
+;;;;;;; popup menus
+
+(defvar global-popup-menu nil
+ "The global popup menu. This is present in all modes.
+See the function `popup-menu' for a description of menu syntax.")
+
+(defvar mode-popup-menu nil
+ "The mode-specific popup menu. Automatically buffer local.
+This is appended to the default items in `global-popup-menu'.
+See the function `popup-menu' for a description of menu syntax.")
+(make-variable-buffer-local 'mode-popup-menu)
+
+(defvar activate-popup-menu-hook nil
+ "Function or functions run before a mode-specific popup menu is made visible.
+These functions are called with no arguments, and should interrogate and
+modify the value of `global-popup-menu' or `mode-popup-menu' as desired.
+Note: this hook is only run if you use `popup-mode-menu' for activating the
+global and mode-specific commands; if you have your own binding for button3,
+this hook won't be run.")
+
+(defvar last-popup-menu-event nil
+ "The mouse event that invoked the last popup menu.
+NOTE: This is EXPERIMENTAL and may change at any time.")
+
+(defun popup-mode-menu (&optional event)
+ "Pop up a menu of global and mode-specific commands.
+The menu is computed by combining `global-popup-menu' and `mode-popup-menu'
+with any items derived from the `context-menu' property of the extent where the
+button was clicked."
+ (interactive "_e")
+ (setq last-popup-menu-event
+ (or (and event (button-event-p event) event)
+ (let* ((mouse-pos (mouse-position))
+ (win (car mouse-pos))
+ (x (cadr mouse-pos))
+ (y (cddr mouse-pos))
+ (edges (window-pixel-edges win))
+ (winx (first edges))
+ (winy (second edges))
+ (x (+ x winx))
+ (y (+ y winy)))
+ (make-event 'button-press
+ `(button 3 x ,x y ,y channel ,(window-frame win)
+ timestamp ,(current-event-timestamp
+ (cdfw-console win)))))))
+ (run-hooks 'activate-popup-menu-hook)
+ (let* ((context-window (and event (event-window event)))
+ (context-point (and event (event-point event)))
+ (context-extents (and context-window
+ context-point
+ (extents-at context-point
+ (window-buffer context-window)
+ 'context-menu)))
+ (context-menu-items
+ (apply 'append (mapcar #'(lambda (extent)
+ (extent-property extent 'context-menu))
+ context-extents))))
+ (popup-menu
+ (progn
+ ;; Merge global-popup-menu and mode-popup-menu
+ (and mode-popup-menu (check-menu-syntax mode-popup-menu))
+ (let* ((mode-title (and (stringp (car mode-popup-menu))
+ (car mode-popup-menu)))
+ (mode-items (if mode-title (cdr mode-popup-menu)
+ mode-popup-menu))
+ (global-title (and (stringp (car global-popup-menu))
+ (car global-popup-menu)))
+ (global-items (if global-title (cdr global-popup-menu)
+ global-popup-menu))
+ mode-filters)
+ ;; Strip keywords from local menu for attaching them at the top
+ (while (and mode-items
+ (keywordp (car mode-items)))
+ ;; Push both keyword and its argument.
+ (push (pop mode-items) mode-filters)
+ (push (pop mode-items) mode-filters))
+ (setq mode-filters (nreverse mode-filters))
+ ;; If mode-filters contains a keyword already present in
+ ;; `global-popup-menu', you will probably lose.
+ (append (cond ((not popup-menu-titles) (list ""))
+ (mode-title (list mode-title))
+ (global-title (list global-title))
+ (t (list "")))
+ mode-filters
+ context-menu-items
+ (and context-menu-items mode-items '("---"))
+ mode-items
+ (and (or context-menu-items mode-items)
+ global-items '("---" "---"))
+ (and global-title (list global-title))
+ global-items
+ ))))
+
+ (while (popup-up-p)
+ (dispatch-event (next-event)))
+
+ ))
+
+(defun popup-buffer-menu (event)
+ "Pop up a copy of the Buffers menu (from the menubar) where the mouse is clicked."
+ (interactive "e")
+ (let ((window (and (event-over-text-area-p event) (event-window event)))
+ (bmenu nil))
+ (or window
+ (error "Pointer must be in a normal window"))
+ (select-window window)
+ (if current-menubar
+ (setq bmenu (assoc "%_Buffers" current-menubar)))
+ (if (null bmenu)
+ (setq bmenu (assoc "%_Buffers" default-menubar)))
+ (if (null bmenu)
+ (error "Can't find the Buffers menu"))
+ (popup-menu bmenu)))
+
+(defun popup-menubar-menu (event)
+ "Pop up a copy of menu that also appears in the menubar."
+ (interactive "e")
+ (let ((window (and (event-over-text-area-p event) (event-window event)))
+ popup-menubar)
+ (or window
+ (error "Pointer must be in a normal window"))
+ (select-window window)
+ (and current-menubar (run-hooks 'activate-menubar-hook))
+ ;; #### Instead of having to copy this just to safely get rid of
+ ;; any nil what we should really do is fix up the internal menubar
+ ;; code to just ignore nil if generating a popup menu
+ (setq popup-menubar (delete nil (copy-sequence (or current-menubar
+ default-menubar))))
+ (popup-menu (cons "%_Menubar Menu" popup-menubar))
+ ))
+
+(defun menu-call-at-event (form &optional event default-behavior-fallback)
+ "Call FORM while temporarily setting point to the position in EVENT.
+NOTE: This is EXPERIMENTAL and may change at any time.
+
+FORM is called the way forms in menu specs are: i.e. if a symbol, it's called
+with `call-interactively', otherwise with `eval'. EVENT defaults to
+`last-popup-menu-event', making this function especially useful in popup
+menus. The buffer and point are set temporarily within a `save-excursion'.
+If EVENT is not a mouse event, or was not over a buffer, nothing
+happens unless DEFAULT-BEHAVIOR-FALLBACK is non-nil, in which case the
+FORM is called normally."
+ (or event (setq event last-popup-menu-event))
+ (let ((buf (event-buffer event))
+ (p (event-closest-point event)))
+ (cond ((and buf p (> p 0))
+ (save-excursion
+ (set-buffer buf)
+ (goto-char p)
+ (if (symbolp form)
+ (call-interactively form)
+ (eval form))))
+ (default-behavior-fallback
+ (if (symbolp form)
+ (call-interactively form)
+ (eval form))))))
+
+(global-set-key 'button3 'popup-mode-menu)
+;; shift button3 and shift button2 are reserved for Hyperbole
+(global-set-key '(meta control button3) 'popup-buffer-menu)
+;; The following command is way too dangerous with Custom.
+;; (global-set-key '(meta shift button3) 'popup-menubar-menu)
+
+;; Here's a test of the cool new menu features (from Stig).
+
+;;(setq mode-popup-menu
+;; '("Test Popup Menu"
+;; :filter cdr
+;; ["this item won't appear because of the menu filter" ding t]
+;; "--:singleLine"
+;; "singleLine"
+;; "--:doubleLine"
+;; "doubleLine"
+;; "--:singleDashedLine"
+;; "singleDashedLine"
+;; "--:doubleDashedLine"
+;; "doubleDashedLine"
+;; "--:noLine"
+;; "noLine"
+;; "--:shadowEtchedIn"
+;; "shadowEtchedIn"
+;; "--:shadowEtchedOut"
+;; "shadowEtchedOut"
+;; "--:shadowDoubleEtchedIn"
+;; "shadowDoubleEtchedIn"
+;; "--:shadowDoubleEtchedOut"
+;; "shadowDoubleEtchedOut"
+;; "--:shadowEtchedInDash"
+;; "shadowEtchedInDash"
+;; "--:shadowEtchedOutDash"
+;; "shadowEtchedOutDash"
+;; "--:shadowDoubleEtchedInDash"
+;; "shadowDoubleEtchedInDash"
+;; "--:shadowDoubleEtchedOutDash"
+;; "shadowDoubleEtchedOutDash"
+;; ))
+
projects / chise / xemacs-chise.git.1 / blobdiff