mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-12-21 10:24:55 +00:00
1032 lines
38 KiB
EmacsLisp
1032 lines
38 KiB
EmacsLisp
;;; dframe --- dedicate frame support modes
|
||
|
||
;;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
|
||
;; 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
|
||
|
||
;; Author: Eric M. Ludlam <zappo@gnu.org>
|
||
;; Keywords: file, tags, tools
|
||
|
||
(defvar dframe-version "1.3"
|
||
"The current version of the dedicated frame library.")
|
||
|
||
;; This file is part of GNU Emacs.
|
||
|
||
;; GNU Emacs is free software; you can redistribute it and/or modify
|
||
;; it under the terms of the GNU General Public License as published by
|
||
;; the Free Software Foundation; either version 3, or (at your option)
|
||
;; any later version.
|
||
|
||
;; GNU Emacs is distributed in the hope that it will be useful,
|
||
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
;; GNU General Public License for more details.
|
||
|
||
;; You should have received a copy of the GNU General Public License
|
||
;; along with GNU Emacs; see the file COPYING. If not, write to the
|
||
;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
||
;; Boston, MA 02110-1301, USA.
|
||
|
||
;;; Commentary:
|
||
;;
|
||
;; This code was developed and maintained as a part of speedbar since 1996.
|
||
;; It became its own support utility in Aug 2000.
|
||
;;
|
||
;; Dedicated frame mode is an Emacs independent library for supporting
|
||
;; a program/buffer combination that resides in a dedicated frame.
|
||
;; Support of this nature requires several complex interactions with the
|
||
;; user which this library will provide, including:
|
||
;;
|
||
;; * Creation of a frame. Positioned relatively.
|
||
;; Includes a frame cache for User position caching.
|
||
;; * Switching between frames.
|
||
;; * Timed activities using idle-timers
|
||
;; * Frame/buffer killing hooks
|
||
;; * Mouse-3 position relative menu
|
||
;; * Mouse motion, help-echo hacks
|
||
;; * Mouse clicking, double clicking, & Xemacs image clicking hack
|
||
;; * Mode line hacking
|
||
;; * Utilities for use in a program covering:
|
||
;; o keymap massage for some actions
|
||
;; o working with an associated buffer
|
||
;; o shift-click
|
||
;; o detaching a frame
|
||
;; o focus-shifting & optional frame jumping
|
||
;; o currently active frame.
|
||
;; o message/y-or-n-p
|
||
;; o mouse set point
|
||
;;
|
||
;; To Use:
|
||
;; 1) (require 'dframe)
|
||
;; 2) Variable Setup:
|
||
;; -frame-parameters -- Frame parameters for Emacs.
|
||
;; -frame-plist -- Frame parameters for XEmacs.
|
||
;; -- Not on parameter lists: They can optionally include width
|
||
;; and height. If width or height is not included, then it will
|
||
;; be provided to match the originating frame. In general,
|
||
;; turning off the menu bar, mode line, and minibuffer can
|
||
;; provide a smaller window, or more display area.
|
||
;; -track-mouse-flag -- mouse tracking on/off specific to your tool.
|
||
;; -update-flag -- app toggle for timer use. Init from
|
||
;; `dframe-have-timer-flag'. This is nil for terminals, since
|
||
;; updating a frame in a terminal is not useful to the user.
|
||
;; -key-map -- Your keymap. Call `dframe-update-keymap' on it.
|
||
;; -buffer, -frame, -cached-frame -- Variables used to track your
|
||
;; applications buffer, frame, or frame cache (when hidden). See
|
||
;; `dframe-frame-mode' for details.
|
||
;; -before-delete-hook, -before-popup-hook, -after-create-hook --
|
||
;; Hooks to have called. The `-after-create-hook' probably wants
|
||
;; to call a function which calls `dframe-reposition-frame' in an
|
||
;; appropriate manner.
|
||
;; 3) Function Setup:
|
||
;; your-frame-mode -- function to toggle your app frame on and off.
|
||
;; its tasks are:
|
||
;; a) create a buffer
|
||
;; b) Call `dframe-frame-mode'. (See its doc)
|
||
;; c) If successful (your -frame variable has a value), call
|
||
;; timer setup if applicable.
|
||
;; your-frame-reposition- -- Function to call from after-create-hook to
|
||
;; reposition your frame with `dframe-repsoition-frame'.
|
||
;; your-mode -- Set up the major mode of the buffer for your app.
|
||
;; Set these variables: dframe-track-mouse-function,
|
||
;; dframe-help-echo-function,
|
||
;; dframe-mouse-click-function,
|
||
;; dframe-mouse-position-function.
|
||
;; See speedbar's implementation of these functions.
|
||
;; `speedbar-current-frame', `speedbar-get-focus', `speedbar-message',
|
||
;; `speedbar-y-or-n-p', `speedbar-set-timer', `speedbar-click',
|
||
;; `speedbar-position-cursor-on-line'
|
||
;; 4) Handling mouse clicks, and help text:
|
||
;; dframe-track-mouse, dframe-help-echo-function --
|
||
;; These variables need to be set to functions that display info
|
||
;; based on the mouse's position.
|
||
;; Text propert 'help-echo, set to `dframe-help-echo', which will
|
||
;; call `dframe-help-echo-function'.
|
||
;; Have a `-click' function, it can call `dframe-quick-mouse' for
|
||
;; positioning. If the variable `dframe-power-click' is non-nil,
|
||
;; then `shift' was held down during the click.
|
||
|
||
;;; Bugs
|
||
;;
|
||
;; * The timer managers doesn't handle multiple different timeouts.
|
||
;; * You can't specify continuous timouts (as opposed to just lidle timers.)
|
||
|
||
(defvar x-pointer-hand2)
|
||
(defvar x-pointer-top-left-arrow)
|
||
|
||
;;; Code:
|
||
|
||
;;; Compatibility functions
|
||
;;
|
||
(defalias 'dframe-frame-parameter
|
||
(if (fboundp 'frame-parameter) 'frame-parameter
|
||
(lambda (frame parameter)
|
||
"Return FRAME's PARAMETER value."
|
||
(cdr (assoc parameter (frame-parameters frame))))))
|
||
|
||
|
||
;;; Variables
|
||
;;
|
||
(defgroup dframe nil
|
||
"Faces used in dframe."
|
||
:prefix "dframe-"
|
||
:group 'dframe)
|
||
|
||
(defvar dframe-have-timer-flag
|
||
(and (or (fboundp 'run-with-idle-timer)
|
||
(fboundp 'start-itimer)
|
||
(boundp 'post-command-idle-hook))
|
||
(if (fboundp 'display-graphic-p)
|
||
(display-graphic-p)
|
||
window-system))
|
||
"Non-nil means that timers are available for this Emacs.")
|
||
|
||
(defcustom dframe-update-speed
|
||
(if (featurep 'xemacs)
|
||
(if (>= emacs-major-version 20)
|
||
2 ; 1 is too obrusive in XEmacs
|
||
5) ; when no idleness, need long delay
|
||
1)
|
||
"Idle time in seconds needed before dframe will update itself.
|
||
Updates occur to allow dframe to display directory information
|
||
relevant to the buffer you are currently editing."
|
||
:group 'dframe
|
||
:type 'integer)
|
||
|
||
(defcustom dframe-activity-change-focus-flag nil
|
||
"Non-nil means the selected frame will change based on activity.
|
||
Thus, if a file is selected for edit, the buffer will appear in the
|
||
selected frame and the focus will change to that frame."
|
||
:group 'dframe
|
||
:type 'boolean)
|
||
|
||
(defcustom dframe-after-select-attached-frame-hook nil
|
||
"Hook run after dframe has selected the attached frame."
|
||
:group 'dframe
|
||
:type 'hook)
|
||
|
||
(defvar dframe-track-mouse-function nil
|
||
"*A function to call when the mouse is moved in the given frame.
|
||
Typically used to display info about the line under the mouse.")
|
||
(make-variable-buffer-local 'dframe-track-mouse-function)
|
||
|
||
(defvar dframe-help-echo-function nil
|
||
"*A function to call when help-echo is used in newer versions of Emacs.
|
||
Typically used to display info about the line under the mouse.")
|
||
(make-variable-buffer-local 'dframe-help-echo-function)
|
||
|
||
(defvar dframe-mouse-click-function nil
|
||
"*A function to call when the mouse is clicked.
|
||
Valid clicks are mouse 2, our double mouse 1.")
|
||
(make-variable-buffer-local 'dframe-mouse-click-function)
|
||
|
||
(defvar dframe-mouse-position-function nil
|
||
"*A function to called to position the cursor for a mouse click.")
|
||
(make-variable-buffer-local 'dframe-mouse-position-function)
|
||
|
||
(defvar dframe-power-click nil
|
||
"Never set this by hand. Value is t when S-mouse activity occurs.")
|
||
|
||
(defvar dframe-timer nil
|
||
"The dframe timer used for updating the buffer.")
|
||
(make-variable-buffer-local 'dframe-timer)
|
||
|
||
(defvar dframe-attached-frame nil
|
||
"The frame which started a frame mode.
|
||
This is the frame from which all interesting activities will go
|
||
for the mode using dframe.")
|
||
(make-variable-buffer-local 'dframe-attached-frame)
|
||
|
||
(defvar dframe-controlled nil
|
||
"Is this buffer controlled by a dedicated frame.
|
||
Local to those buffers, as a function called that created it.")
|
||
(make-variable-buffer-local 'dframe-controlled)
|
||
|
||
(defun dframe-update-keymap (map)
|
||
"Update the keymap MAP for dframe default bindings."
|
||
;; Frame control
|
||
(define-key map "q" 'dframe-close-frame)
|
||
(define-key map "Q" 'delete-frame)
|
||
|
||
;; Override switch to buffer to never hack our frame.
|
||
(substitute-key-definition 'switch-to-buffer
|
||
'dframe-switch-buffer-attached-frame
|
||
map global-map)
|
||
|
||
(if (featurep 'xemacs)
|
||
(progn
|
||
;; mouse bindings so we can manipulate the items on each line
|
||
(define-key map 'button2 'dframe-click)
|
||
(define-key map '(shift button2) 'dframe-power-click)
|
||
;; Info doc fix from Bob Weiner
|
||
(if (featurep 'infodoc)
|
||
nil
|
||
(define-key map 'button3 'dframe-popup-kludge))
|
||
)
|
||
|
||
;; mouse bindings so we can manipulate the items on each line
|
||
;; (define-key map [down-mouse-1] 'dframe-double-click)
|
||
(define-key map [follow-link] 'mouse-face)
|
||
(define-key map [mouse-2] 'dframe-click)
|
||
;; This is the power click for new frames, or refreshing a cache
|
||
(define-key map [S-mouse-2] 'dframe-power-click)
|
||
;; This adds a small unecessary visual effect
|
||
;;(define-key map [down-mouse-2] 'dframe-quick-mouse)
|
||
|
||
(define-key map [down-mouse-3] 'dframe-popup-kludge)
|
||
|
||
;; This lets the user scroll as if we had a scrollbar... well maybe not
|
||
(define-key map [mode-line mouse-2] 'dframe-mouse-hscroll)
|
||
;; another handy place users might click to get our menu.
|
||
(define-key map [mode-line down-mouse-1]
|
||
'dframe-popup-kludge)
|
||
|
||
;; We can't switch buffers with the buffer mouse menu. Lets hack it.
|
||
(define-key map [C-down-mouse-1] 'dframe-hack-buffer-menu)
|
||
|
||
;; Lastly, we want to track the mouse. Play here
|
||
(define-key map [mouse-movement] 'dframe-track-mouse)
|
||
))
|
||
|
||
(defun dframe-live-p (frame)
|
||
"Return non-nil if FRAME is currently available."
|
||
(and frame (frame-live-p frame) (frame-visible-p frame)))
|
||
|
||
(defun dframe-frame-mode (arg frame-var cache-var buffer-var frame-name
|
||
local-mode-fn
|
||
&optional
|
||
parameters
|
||
delete-hook popup-hook create-hook
|
||
)
|
||
"Manage a frame for an application, enabling it when ARG is positive.
|
||
FRAME-VAR is a variable used to cache the frame being used.
|
||
This frame is either resurrected, hidden, killed, etc based on
|
||
the value.
|
||
CACHE-VAR is a variable used to cache a cached frame.
|
||
BUFFER-VAR is a variable used to cache the buffer being used in dframe.
|
||
This buffer will have `dframe-frame-mode' run on it.
|
||
FRAME-NAME is the name of the frame to create.
|
||
LOCAL-MODE-FN is the function used to call this one.
|
||
PARAMETERS are frame parameters to apply to this dframe.
|
||
DELETE-HOOK are hooks to run when deleting a frame.
|
||
POPUP-HOOK are hooks to run before showing a frame.
|
||
CREATE-HOOK are hooks to run after creating a frame."
|
||
;; toggle frame on and off.
|
||
(if (not arg) (if (dframe-live-p (symbol-value frame-var))
|
||
(setq arg -1) (setq arg 1)))
|
||
;; Make sure the current buffer is set.
|
||
(set-buffer (symbol-value buffer-var))
|
||
;; turn the frame off on neg number
|
||
(if (and (numberp arg) (< arg 0))
|
||
(progn
|
||
(run-hooks 'delete-hook)
|
||
(if (and (symbol-value frame-var)
|
||
(frame-live-p (symbol-value frame-var)))
|
||
(progn
|
||
(set cache-var (symbol-value frame-var))
|
||
(make-frame-invisible (symbol-value frame-var))))
|
||
(set frame-var nil))
|
||
;; Set this as our currently attached frame
|
||
(setq dframe-attached-frame (selected-frame))
|
||
(run-hooks 'popup-hook)
|
||
;; Updated the buffer passed in to contain all the hacks needed
|
||
;; to make it work well in a dedicated window.
|
||
(with-current-buffer (symbol-value buffer-var)
|
||
;; Declare this buffer a dedicated frame
|
||
(setq dframe-controlled local-mode-fn)
|
||
|
||
(if (featurep 'xemacs)
|
||
(progn
|
||
;; Hack the XEmacs mouse-motion handler
|
||
(set (make-local-variable 'mouse-motion-handler)
|
||
'dframe-track-mouse-xemacs)
|
||
;; Hack the double click handler
|
||
(make-local-variable 'mouse-track-click-hook)
|
||
(add-hook 'mouse-track-click-hook
|
||
(lambda (event count)
|
||
(if (/= (event-button event) 1)
|
||
nil ; Do normal operations.
|
||
(cond ((eq count 1)
|
||
(dframe-quick-mouse event))
|
||
((or (eq count 2)
|
||
(eq count 3))
|
||
(dframe-click event)
|
||
(dframe-quick-mouse event)))
|
||
;; Don't do normal operations.
|
||
t))))
|
||
;; Enable mouse tracking in emacs
|
||
(if dframe-track-mouse-function
|
||
(set (make-local-variable 'track-mouse) t))) ;this could be messy.
|
||
;;;; DISABLED: This causes problems for users with multiple frames.
|
||
;;;; ;; Set this up special just for the passed in buffer
|
||
;;;; ;; Terminal minibuffer stuff does not require this.
|
||
;;;; (if (and (or (assoc 'minibuffer parameters)
|
||
;;;; ;; XEmacs plist is not an association list
|
||
;;;; (member 'minibuffer parameters))
|
||
;;;; window-system (not (eq window-system 'pc))
|
||
;;;; (null default-minibuffer-frame))
|
||
;;;; (progn
|
||
;;;; (make-local-variable 'default-minibuffer-frame)
|
||
;;;; (setq default-minibuffer-frame dframe-attached-frame))
|
||
;;;; )
|
||
;; Override `temp-buffer-show-hook' so that help and such
|
||
;; put their stuff into a frame other than our own.
|
||
;; Correct use of `temp-buffer-show-function': Bob Weiner
|
||
(if (and (boundp 'temp-buffer-show-hook)
|
||
(boundp 'temp-buffer-show-function))
|
||
(progn (make-local-variable 'temp-buffer-show-hook)
|
||
(setq temp-buffer-show-hook temp-buffer-show-function)))
|
||
(make-local-variable 'temp-buffer-show-function)
|
||
(setq temp-buffer-show-function 'dframe-temp-buffer-show-function)
|
||
;; If this buffer is killed, we must make sure that we destroy
|
||
;; the frame the dedicated window is in.
|
||
(add-hook 'kill-buffer-hook `(lambda ()
|
||
(let ((skilling (boundp 'skilling)))
|
||
(if skilling
|
||
nil
|
||
(if dframe-controlled
|
||
(progn
|
||
(funcall dframe-controlled -1)
|
||
(setq ,buffer-var nil)
|
||
)))))
|
||
t t)
|
||
)
|
||
;; Get the frame to work in
|
||
(if (frame-live-p (symbol-value cache-var))
|
||
(progn
|
||
(set frame-var (symbol-value cache-var))
|
||
(make-frame-visible (symbol-value frame-var))
|
||
(select-frame (symbol-value frame-var))
|
||
(set-window-dedicated-p (selected-window) nil)
|
||
(if (not (eq (current-buffer) (symbol-value buffer-var)))
|
||
(switch-to-buffer (symbol-value buffer-var)))
|
||
(set-window-dedicated-p (selected-window) t)
|
||
(raise-frame (symbol-value frame-var))
|
||
)
|
||
(if (frame-live-p (symbol-value frame-var))
|
||
(raise-frame (symbol-value frame-var))
|
||
(set frame-var
|
||
(if (featurep 'xemacs)
|
||
;; Only guess height if it is not specified.
|
||
(if (member 'height parameters)
|
||
(make-frame parameters)
|
||
(make-frame (nconc (list 'height
|
||
(dframe-needed-height))
|
||
parameters)))
|
||
(let* ((mh (dframe-frame-parameter dframe-attached-frame
|
||
'menu-bar-lines))
|
||
(paramsa
|
||
;; Only add a guessed height if one is not specified
|
||
;; in the input parameters.
|
||
(if (assoc 'height parameters)
|
||
parameters
|
||
(append
|
||
parameters
|
||
(list (cons 'height (+ (or mh 0) (frame-height)))))))
|
||
(params
|
||
;; Only add a guessed width if one is not specified
|
||
;; in the input parameters.
|
||
(if (assoc 'width parameters)
|
||
paramsa
|
||
(append
|
||
paramsa
|
||
(list (cons 'width (frame-width))))))
|
||
(frame
|
||
(if (or (< emacs-major-version 20)
|
||
(not (eq window-system 'x)))
|
||
(make-frame params)
|
||
(let ((x-pointer-shape x-pointer-top-left-arrow)
|
||
(x-sensitive-text-pointer-shape
|
||
x-pointer-hand2))
|
||
(make-frame params)))))
|
||
frame)))
|
||
;; Put the buffer into the frame
|
||
(save-excursion
|
||
(select-frame (symbol-value frame-var))
|
||
(switch-to-buffer (symbol-value buffer-var))
|
||
(set-window-dedicated-p (selected-window) t))
|
||
;; Run hooks (like reposition)
|
||
(run-hooks 'create-hook)
|
||
;; Frame name
|
||
(if (and (or (null window-system) (eq window-system 'pc))
|
||
(fboundp 'set-frame-name))
|
||
(save-window-excursion
|
||
(select-frame (symbol-value frame-var))
|
||
(set-frame-name frame-name)))
|
||
;; On a terminal, raise the frame or the user will
|
||
;; be confused.
|
||
(if (not window-system)
|
||
(select-frame (symbol-value frame-var)))
|
||
))) )
|
||
|
||
(defun dframe-reposition-frame (new-frame parent-frame location)
|
||
"Move NEW-FRAME to be relative to PARENT-FRAME.
|
||
LOCATION can be one of 'random, 'left, 'right, 'left-right, or 'top-bottom."
|
||
(if (featurep 'xemacs)
|
||
(dframe-reposition-frame-xemacs new-frame parent-frame location)
|
||
(dframe-reposition-frame-emacs new-frame parent-frame location)))
|
||
|
||
(defun dframe-reposition-frame-emacs (new-frame parent-frame location)
|
||
"Move NEW-FRAME to be relative to PARENT-FRAME.
|
||
LOCATION can be one of 'random, 'left-right, 'top-bottom, or
|
||
a cons cell indicationg a position of the form (LEFT . TOP)."
|
||
(let* ((pfx (dframe-frame-parameter parent-frame 'left))
|
||
(pfy (dframe-frame-parameter parent-frame 'top))
|
||
(pfw (frame-pixel-width parent-frame))
|
||
(pfh (frame-pixel-height parent-frame))
|
||
(nfw (frame-pixel-width new-frame))
|
||
(nfh (frame-pixel-height new-frame))
|
||
newleft newtop
|
||
)
|
||
;; Position dframe.
|
||
(if (or (not window-system) (eq window-system 'pc))
|
||
;; Do no positioning if not on a windowing system,
|
||
nil
|
||
;; Rebuild pfx,pfy to be absolute positions.
|
||
(setq pfx (if (not (consp pfx))
|
||
pfx
|
||
;; If pfx is a list, that means we grow
|
||
;; from a specific edge of the display.
|
||
;; Convert that to the distance from the
|
||
;; left side of the display.
|
||
(if (eq (car pfx) '-)
|
||
;; A - means distance from the right edge
|
||
;; of the display, or DW - pfx - framewidth
|
||
(- (x-display-pixel-width) (car (cdr pfx)) pfw)
|
||
(car (cdr pfx))))
|
||
pfy (if (not (consp pfy))
|
||
pfy
|
||
;; If pfy is a list, that means we grow
|
||
;; from a specific edge of the display.
|
||
;; Convert that to the distance from the
|
||
;; left side of the display.
|
||
(if (eq (car pfy) '-)
|
||
;; A - means distance from the right edge
|
||
;; of the display, or DW - pfx - framewidth
|
||
(- (x-display-pixel-height) (car (cdr pfy)) pfh)
|
||
(car (cdr pfy))))
|
||
)
|
||
(cond ((eq location 'right)
|
||
(setq newleft (+ pfx pfw 5)
|
||
newtop pfy))
|
||
((eq location 'left)
|
||
(setq newleft (- pfx 10 nfw)
|
||
newtop pfy))
|
||
((eq location 'left-right)
|
||
(setq newleft
|
||
;; Decide which side to put it on. 200 is just a
|
||
;; buffer for the left edge of the screen. The
|
||
;; extra 10 is just dressings for window
|
||
;; decorations.
|
||
(let* ((left-guess (- pfx 10 nfw))
|
||
(right-guess (+ pfx pfw 5))
|
||
(left-margin left-guess)
|
||
(right-margin (- (x-display-pixel-width)
|
||
right-guess 5 nfw)))
|
||
(cond ((>= left-margin 0) left-guess)
|
||
((>= right-margin 0) right-guess)
|
||
;; otherwise choose side we overlap less
|
||
((> left-margin right-margin) 0)
|
||
(t (- (x-display-pixel-width) nfw 5))))
|
||
newtop pfy
|
||
))
|
||
((eq location 'top-bottom)
|
||
(setq newleft pfx
|
||
newtop
|
||
;; Try and guess if we should be on the top or bottom.
|
||
(let* ((top-guess (- pfy 15 nfh))
|
||
(bottom-guess (+ pfy 5 pfh))
|
||
(top-margin top-guess)
|
||
(bottom-margin (- (x-display-pixel-height)
|
||
bottom-guess 5 nfh)))
|
||
(cond ((>= top-margin 0) top-guess)
|
||
((>= bottom-margin 0) bottom-guess)
|
||
;; Choose a side to overlap the least.
|
||
((> top-margin bottom-margin) 0)
|
||
(t (- (x-display-pixel-height) nfh 5)))))
|
||
)
|
||
((consp location)
|
||
(setq newleft (or (car location) 0)
|
||
newtop (or (cdr location) 0)))
|
||
(t nil))
|
||
(modify-frame-parameters new-frame
|
||
(list (cons 'left newleft)
|
||
(cons 'top newtop))))))
|
||
|
||
(defun dframe-reposition-frame-xemacs (new-frame parent-frame location)
|
||
"Move NEW-FRAME to be relative to PARENT-FRAME.
|
||
LOCATION can be one of 'random, 'left-right, or 'top-bottom."
|
||
;; Not yet implemented
|
||
)
|
||
|
||
;; XEmacs function only.
|
||
(defun dframe-needed-height (&optional frame)
|
||
"The needed height for the tool bar FRAME (in characters)."
|
||
(or frame (setq frame (selected-frame)))
|
||
;; The 1 is the missing modeline/minibuffer
|
||
(+ 1 (/ (frame-pixel-height frame)
|
||
;; This obscure code avoids a byte compiler warning in Emacs.
|
||
(let ((f 'face-height))
|
||
(funcall f 'default frame)))))
|
||
|
||
(defun dframe-detach (frame-var cache-var buffer-var)
|
||
"Detatch the frame in symbol FRAME-VAR.
|
||
CACHE-VAR and BUFFER-VAR are symbols as in `dframe-frame-mode'"
|
||
(with-current-buffer (symbol-value buffer-var)
|
||
(rename-buffer (buffer-name) t)
|
||
(let ((oldframe (symbol-value frame-var)))
|
||
(set buffer-var nil)
|
||
(set frame-var nil)
|
||
(set cache-var nil)
|
||
;; FIXME: Looks very suspicious. Luckily this function is unused.
|
||
(make-variable-buffer-local frame-var)
|
||
(set frame-var oldframe)
|
||
)))
|
||
|
||
;;; Special frame event proxies
|
||
;;
|
||
(if (boundp 'special-event-map)
|
||
(progn
|
||
(define-key special-event-map [make-frame-visible]
|
||
'dframe-handle-make-frame-visible)
|
||
(define-key special-event-map [iconify-frame]
|
||
'dframe-handle-iconify-frame)
|
||
(define-key special-event-map [delete-frame]
|
||
'dframe-handle-delete-frame))
|
||
)
|
||
|
||
(defvar dframe-make-frame-visible-function nil
|
||
"Function used when a dframe controlled frame is de-iconified.
|
||
The function must take an EVENT.")
|
||
(defvar dframe-iconify-frame-function nil
|
||
"Function used when a dframe controlled frame is iconified.
|
||
The function must take an EVENT.")
|
||
(defvar dframe-delete-frame-function nil
|
||
"Function used when a frame attached to a dframe frame is deleted.
|
||
The function must take an EVENT.")
|
||
|
||
(defun dframe-handle-make-frame-visible (e)
|
||
"Handle a `make-frame-visible' event.
|
||
Should enable auto-updating if the last state was also enabled.
|
||
Argument E is the event making the frame visible."
|
||
(interactive "e")
|
||
(let ((f last-event-frame))
|
||
(if (and (dframe-attached-frame f)
|
||
dframe-make-frame-visible-function)
|
||
(funcall dframe-make-frame-visible-function e)
|
||
)))
|
||
|
||
(defun dframe-handle-iconify-frame (e)
|
||
"Handle a `iconify-frame' event.
|
||
Should disable auto-updating if the last state was also enabled.
|
||
Argument E is the event iconifying the frame."
|
||
(interactive "e")
|
||
(let ((f last-event-frame))
|
||
(if (and (dframe-attached-frame f)
|
||
dframe-iconify-frame-function e)
|
||
(funcall dframe-iconify-frame-function)
|
||
)))
|
||
|
||
(defun dframe-handle-delete-frame (e)
|
||
"Handle `delete-frame' event.
|
||
Argument E is the event deleting the frame."
|
||
(interactive "e")
|
||
(let ((fl (frame-list))
|
||
(sf (selected-frame)))
|
||
;; Loop over all frames. If dframe-delete-frame-function is
|
||
;; non-nil, call it.
|
||
(while fl
|
||
(select-frame (car fl))
|
||
(if dframe-delete-frame-function
|
||
(funcall dframe-delete-frame-function e))
|
||
(setq fl (cdr fl)))
|
||
(if (frame-live-p sf)
|
||
(select-frame sf))
|
||
(handle-delete-frame e)))
|
||
|
||
|
||
;;; Utilities
|
||
;;
|
||
(defun dframe-get-focus (frame-var activator &optional hook)
|
||
"Change frame focus to or from a dedicated frame.
|
||
If the selected frame is not in the symbol FRAME-VAR, then FRAME-VAR
|
||
frame is selected. If the FRAME-VAR is active, then select the
|
||
attached frame. If FRAME-VAR is nil, ACTIVATOR is called to
|
||
created it. HOOK is an optional argument of hooks to run when
|
||
selecting FRAME-VAR."
|
||
(interactive)
|
||
(if (eq (selected-frame) (symbol-value frame-var))
|
||
(if (frame-live-p dframe-attached-frame)
|
||
(dframe-select-attached-frame))
|
||
;; make sure we have a frame
|
||
(if (not (frame-live-p (symbol-value frame-var)))
|
||
(funcall activator 1))
|
||
;; go there
|
||
(select-frame (symbol-value frame-var))
|
||
)
|
||
(other-frame 0)
|
||
;; If updates are off, then refresh the frame (they want it now...)
|
||
(run-hooks 'hook))
|
||
|
||
|
||
(defun dframe-close-frame ()
|
||
"Close the current frame if it is dedicated."
|
||
(interactive)
|
||
(if dframe-controlled
|
||
(let ((b (current-buffer)))
|
||
(funcall dframe-controlled -1)
|
||
(kill-buffer b))))
|
||
|
||
(defun dframe-current-frame (frame-var desired-major-mode)
|
||
"Return the existing dedicated frame to use.
|
||
FRAME-VAR is the variable storing the currently active dedicated frame.
|
||
If the current frame's buffer uses DESIRED-MAJOR-MODE, then use that frame."
|
||
(if (not (eq (selected-frame) (symbol-value frame-var)))
|
||
(if (and (eq major-mode 'desired-major-mode)
|
||
(get-buffer-window (current-buffer))
|
||
(window-frame (get-buffer-window (current-buffer))))
|
||
(window-frame (get-buffer-window (current-buffer)))
|
||
(symbol-value frame-var))
|
||
(symbol-value frame-var)))
|
||
|
||
(defun dframe-attached-frame (&optional frame)
|
||
"Return the attached frame belonging to the dframe controlled frame FRAME.
|
||
If optional arg FRAME is nil just return `dframe-attached-frame'."
|
||
(save-excursion
|
||
(if frame (select-frame frame))
|
||
dframe-attached-frame))
|
||
|
||
(defun dframe-select-attached-frame (&optional frame)
|
||
"Switch to the frame the dframe controlled frame FRAME was started from.
|
||
If optional arg FRAME is nil assume the attached frame is already selected
|
||
and just run the hooks `dframe-after-select-attached-frame-hook'. Return
|
||
the attached frame."
|
||
(let ((frame (dframe-attached-frame frame)))
|
||
(if frame (select-frame frame))
|
||
(prog1 frame
|
||
(run-hooks 'dframe-after-select-attached-frame-hook))))
|
||
|
||
(defmacro dframe-with-attached-buffer (&rest forms)
|
||
"Execute FORMS in the attached frame's special buffer.
|
||
Optionally select that frame if necessary."
|
||
`(save-selected-window
|
||
;;(speedbar-set-timer speedbar-update-speed)
|
||
(dframe-select-attached-frame)
|
||
,@forms
|
||
(dframe-maybee-jump-to-attached-frame)))
|
||
|
||
(defun dframe-maybee-jump-to-attached-frame ()
|
||
"Jump to the attached frame ONLY if this was not a mouse event."
|
||
(when (or (not (dframe-mouse-event-p last-input-event))
|
||
dframe-activity-change-focus-flag)
|
||
(dframe-select-attached-frame)
|
||
;; KB: For what is this - raising the frame??
|
||
(other-frame 0)))
|
||
|
||
|
||
(defvar dframe-suppress-message-flag nil
|
||
"Non-nil means that `dframe-message' should just return a string.")
|
||
|
||
(defun dframe-message (fmt &rest args)
|
||
"Like message, but for use in a dedicated frame.
|
||
Argument FMT is the format string, and ARGS are the arguments for message."
|
||
(save-selected-window
|
||
(if dframe-suppress-message-flag
|
||
(apply 'format fmt args)
|
||
(if dframe-attached-frame
|
||
;; KB: Here we do not need calling `dframe-select-attached-frame'
|
||
(select-frame dframe-attached-frame))
|
||
(apply 'message fmt args))))
|
||
|
||
(defun dframe-y-or-n-p (prompt)
|
||
"Like `y-or-n-p', but for use in a dedicated frame.
|
||
Argument PROMPT is the prompt to use."
|
||
(save-selected-window
|
||
(if (and ;;default-minibuffer-frame
|
||
dframe-attached-frame
|
||
;;(not (eq default-minibuffer-frame dframe-attached-frame))
|
||
)
|
||
;; KB: Here we do not need calling `dframe-select-attached-frame'
|
||
(select-frame dframe-attached-frame))
|
||
(y-or-n-p prompt)))
|
||
|
||
;;; timer management
|
||
;;
|
||
;; Unlike speedbar with a dedicated set of routines, dframe has one master
|
||
;; timer, and all dframe users will use it. At least until I figure out a way
|
||
;; around that problem.
|
||
;;
|
||
;; Advantage 1: Two apps with timer/frames can munge the master list
|
||
;; to make sure they occur in order.
|
||
;; Advantage 2: If a user hits a key between timer functions, we can
|
||
;; interrupt them safely.
|
||
(defvar dframe-client-functions nil
|
||
"List of client functions using the dframe timer.")
|
||
|
||
(defun dframe-set-timer (timeout fn &optional null-on-error)
|
||
"Apply a timer with TIMEOUT, to call FN, or remove a timer if TIMEOUT is nil.
|
||
TIMEOUT is the number of seconds until the dframe controled program
|
||
timer is called again. When TIMEOUT is nil, turn off all timeouts.
|
||
This function must be called from the buffer belonging to the program
|
||
who requested the timer.
|
||
If NULL-ON-ERROR is a symbol, set it to nil if we cannot create a timer."
|
||
;; First, fix up our list of client functions
|
||
(if timeout
|
||
(add-to-list 'dframe-client-functions fn)
|
||
(setq dframe-client-functions (delete fn dframe-client-functions)))
|
||
;; Now decided what to do about the timout.
|
||
(if (or
|
||
;; We have a timer, restart the timer with the new time.
|
||
timeout
|
||
;; We have a timer, an off is requested, and no client
|
||
;; functions are left, shut er down.
|
||
(and dframe-timer (not timeout) dframe-client-functions))
|
||
;; Only call the low level function if we are changing the state.
|
||
(dframe-set-timer-internal timeout null-on-error)))
|
||
|
||
(defun dframe-set-timer-internal (timeout &optional null-on-error)
|
||
"Apply a timer with TIMEOUT to call the dframe timer manager.
|
||
If NULL-ON-ERROR is a symbol, set it to nil if we cannot create a timer."
|
||
(cond
|
||
;; XEmacs
|
||
((featurep 'xemacs)
|
||
(if dframe-timer
|
||
(progn (delete-itimer dframe-timer)
|
||
(setq dframe-timer nil)))
|
||
(if timeout
|
||
(if (or (>= emacs-major-version 21)
|
||
(and (= emacs-major-version 20)
|
||
(> emacs-minor-version 0))
|
||
(and (= emacs-major-version 19)
|
||
(>= emacs-minor-version 15)))
|
||
(setq dframe-timer (start-itimer "dframe"
|
||
'dframe-timer-fn
|
||
timeout
|
||
timeout
|
||
t))
|
||
(setq dframe-timer (start-itimer "dframe"
|
||
'dframe-timer-fn
|
||
timeout
|
||
nil)))))
|
||
;; Post 19.31 Emacs
|
||
((fboundp 'run-with-idle-timer)
|
||
(if dframe-timer
|
||
(progn (cancel-timer dframe-timer)
|
||
(setq dframe-timer nil)))
|
||
(if timeout
|
||
(setq dframe-timer
|
||
(run-with-idle-timer timeout t 'dframe-timer-fn))))
|
||
;; Emacs 19.30 (Thanks twice: ptype@dra.hmg.gb)
|
||
((boundp 'post-command-idle-hook)
|
||
(if timeout
|
||
(add-hook 'post-command-idle-hook 'dframe-timer-fn)
|
||
(remove-hook 'post-command-idle-hook 'dframe-timer-fn)))
|
||
;; Older or other Emacsen with no timers. Set up so that its
|
||
;; obvious this emacs can't handle the updates
|
||
((symbolp null-on-error)
|
||
(set null-on-error nil)))
|
||
)
|
||
|
||
(defun dframe-timer-fn ()
|
||
"Called due to the dframe timer.
|
||
Evaluates all cached timer functions in sequence."
|
||
(let ((l dframe-client-functions))
|
||
(while (and l (sit-for 0))
|
||
(condition-case er
|
||
(funcall (car l))
|
||
(error (message "DFRAME TIMER ERROR: %S" er)))
|
||
(setq l (cdr l)))))
|
||
|
||
;;; Menu hacking for mouse-3
|
||
;;
|
||
(defconst dframe-pass-event-to-popup-mode-menu
|
||
(let (max-args)
|
||
(and (fboundp 'popup-mode-menu)
|
||
(fboundp 'function-max-args)
|
||
(setq max-args (function-max-args 'popup-mode-menu))
|
||
(not (zerop max-args))))
|
||
"The EVENT arg to 'popup-mode-menu' was introduced in XEmacs 21.4.0.")
|
||
|
||
;; In XEmacs, we make popup menus work on the item over mouse (as
|
||
;; opposed to where the point happens to be.) We attain this by
|
||
;; temporarily moving the point to that place.
|
||
;; Hrvoje Niksic <hniksic@srce.hr>
|
||
(defalias 'dframe-popup-kludge
|
||
(if (featurep 'xemacs)
|
||
(lambda (event) ; XEmacs.
|
||
"Pop up a menu related to the clicked on item.
|
||
Must be bound to EVENT."
|
||
(interactive "e")
|
||
(save-excursion
|
||
(if dframe-pass-event-to-popup-mode-menu
|
||
(popup-mode-menu event)
|
||
(goto-char (event-closest-point event))
|
||
(beginning-of-line)
|
||
(forward-char (min 5 (- (save-excursion (end-of-line) (point))
|
||
(save-excursion (beginning-of-line) (point)))))
|
||
(popup-mode-menu))
|
||
;; Wait for menu to bail out. `popup-mode-menu' (and other popup
|
||
;; menu functions) return immediately.
|
||
(let (new)
|
||
(while (not (misc-user-event-p (setq new (next-event))))
|
||
(dispatch-event new))
|
||
(dispatch-event new))))
|
||
|
||
(lambda (e) ; Emacs.
|
||
"Pop up a menu related to the clicked on item.
|
||
Must be bound to event E."
|
||
(interactive "e")
|
||
(save-excursion
|
||
(mouse-set-point e)
|
||
;; This gets the cursor where the user can see it.
|
||
(if (not (bolp)) (forward-char -1))
|
||
(sit-for 0)
|
||
(if (< emacs-major-version 20)
|
||
(mouse-major-mode-menu e)
|
||
(mouse-major-mode-menu e nil))))))
|
||
|
||
;;; Interactive user functions for the mouse
|
||
;;
|
||
(defalias 'dframe-mouse-event-p
|
||
(if (featurep 'xemacs)
|
||
'button-press-event-p
|
||
(lambda (event)
|
||
"Return t if the event is a mouse related event."
|
||
(if (and (listp event)
|
||
(member (event-basic-type event)
|
||
'(mouse-1 mouse-2 mouse-3)))
|
||
t
|
||
nil))))
|
||
|
||
(defun dframe-track-mouse (event)
|
||
"For motion EVENT, display info about the current line."
|
||
(interactive "e")
|
||
(when (and dframe-track-mouse-function
|
||
(or (featurep 'xemacs) ;; XEmacs always safe?
|
||
(windowp (posn-window (event-end event))) ; Sometimes
|
||
; there is no window to jump into.
|
||
))
|
||
|
||
(funcall dframe-track-mouse-function event)))
|
||
|
||
(defun dframe-track-mouse-xemacs (event)
|
||
"For motion EVENT, display info about the current line."
|
||
(if (functionp (default-value 'mouse-motion-handler))
|
||
(funcall (default-value 'mouse-motion-handler) event))
|
||
(if dframe-track-mouse-function
|
||
(funcall dframe-track-mouse-function event)))
|
||
|
||
(defun dframe-help-echo (window &optional buffer position)
|
||
"Display help based context.
|
||
The context is in WINDOW, viewing BUFFER, at POSITION.
|
||
BUFFER and POSITION are optional because XEmacs doesn't use them."
|
||
(when (and (not dframe-track-mouse-function)
|
||
(bufferp buffer)
|
||
dframe-help-echo-function)
|
||
(let ((dframe-suppress-message-flag t))
|
||
(with-current-buffer buffer
|
||
(save-excursion
|
||
(if position (goto-char position))
|
||
(funcall dframe-help-echo-function))))))
|
||
|
||
(defun dframe-mouse-set-point (e)
|
||
"Set POINT based on event E.
|
||
Handles clicking on images in XEmacs."
|
||
(if (and (featurep 'xemacs)
|
||
(save-excursion
|
||
(save-window-excursion
|
||
(mouse-set-point e)
|
||
(event-over-glyph-p e))))
|
||
;; We are in XEmacs, and clicked on a picture
|
||
(let ((ext (event-glyph-extent e)))
|
||
;; This position is back inside the extent where the
|
||
;; junk we pushed into the property list lives.
|
||
(if (extent-end-position ext)
|
||
(goto-char (1- (extent-end-position ext)))
|
||
(mouse-set-point e)))
|
||
;; We are not in XEmacs, OR we didn't click on a picture.
|
||
(mouse-set-point e)))
|
||
|
||
(defun dframe-quick-mouse (e)
|
||
"Since mouse events are strange, this will keep the mouse nicely positioned.
|
||
This should be bound to mouse event E."
|
||
(interactive "e")
|
||
(dframe-mouse-set-point e)
|
||
(if dframe-mouse-position-function
|
||
(funcall dframe-mouse-position-function)))
|
||
|
||
(defun dframe-power-click (e)
|
||
"Activate any dframe mouse click as a power click.
|
||
A power click will dispose of cached data (if available) or bring a buffer
|
||
up into a different window.
|
||
This should be bound to mouse event E."
|
||
(interactive "e")
|
||
(let ((dframe-power-click t))
|
||
(select-frame last-event-frame)
|
||
(dframe-click e)))
|
||
|
||
(defun dframe-click (e)
|
||
"Call our clients click function on a user click.
|
||
E is the event causing the click."
|
||
(interactive "e")
|
||
(dframe-mouse-set-point e)
|
||
(when dframe-mouse-click-function
|
||
;; On the off chance of buffer switch, or something incorrectly
|
||
;; configured.
|
||
(funcall dframe-mouse-click-function e)))
|
||
|
||
(defun dframe-double-click (e)
|
||
"Activate the registered click function on a double click.
|
||
This must be bound to a mouse event.
|
||
This should be bound to mouse event E."
|
||
(interactive "e")
|
||
;; Emacs only. XEmacs handles this via `mouse-track-click-hook'.
|
||
(cond ((eq (car e) 'down-mouse-1)
|
||
(dframe-mouse-set-point e))
|
||
((eq (car e) 'mouse-1)
|
||
(dframe-quick-mouse e))
|
||
((or (eq (car e) 'double-down-mouse-1)
|
||
(eq (car e) 'triple-down-mouse-1))
|
||
(dframe-click e))))
|
||
|
||
;;; Hacks of normal things.
|
||
;;
|
||
;; Some normal things that happen in one of these dedicated frames
|
||
;; must be handled specially, so that our dedicated frame isn't
|
||
;; messed up.
|
||
(defun dframe-temp-buffer-show-function (buffer)
|
||
"Placed in the variable `temp-buffer-show-function' in dedicated frames.
|
||
If a user requests help using \\[help-command] <Key> the temp BUFFER will be
|
||
redirected into a window on the attached frame."
|
||
(if dframe-attached-frame (dframe-select-attached-frame))
|
||
(pop-to-buffer buffer nil)
|
||
(other-window -1)
|
||
;; Fix for using this hook on some platforms: Bob Weiner
|
||
(cond ((not (featurep 'xemacs))
|
||
(run-hooks 'temp-buffer-show-hook))
|
||
((fboundp 'run-hook-with-args)
|
||
(run-hook-with-args 'temp-buffer-show-hook buffer))
|
||
((and (boundp 'temp-buffer-show-hook)
|
||
(listp temp-buffer-show-hook))
|
||
(mapcar (function (lambda (hook) (funcall hook buffer)))
|
||
temp-buffer-show-hook))))
|
||
|
||
(defun dframe-hack-buffer-menu (e)
|
||
"Control mouse 1 is buffer menu.
|
||
This hack overrides it so that the right thing happens in the main
|
||
Emacs frame, not in the dedicated frame.
|
||
Argument E is the event causing this activity."
|
||
(interactive "e")
|
||
(let ((fn (lookup-key global-map (if (featurep 'xemacs)
|
||
'(control button1)
|
||
[C-down-mouse-1])))
|
||
(oldbuff (current-buffer))
|
||
(newbuff nil))
|
||
(unwind-protect
|
||
(save-excursion
|
||
(set-window-dedicated-p (selected-window) nil)
|
||
(call-interactively fn)
|
||
(setq newbuff (current-buffer)))
|
||
(switch-to-buffer oldbuff)
|
||
(set-window-dedicated-p (selected-window) t))
|
||
(if (not (eq newbuff oldbuff))
|
||
(dframe-with-attached-buffer
|
||
(switch-to-buffer newbuff)))))
|
||
|
||
(defun dframe-switch-buffer-attached-frame (&optional buffer)
|
||
"Switch to BUFFER in the attached frame, and raise that frame.
|
||
This overrides the default behavior of `switch-to-buffer' which is
|
||
broken because of the dedicated frame."
|
||
(interactive)
|
||
;; Assume we are in the dedicated frame.
|
||
(other-frame 1)
|
||
;; Now switch buffers
|
||
(if buffer
|
||
(switch-to-buffer buffer)
|
||
(call-interactively 'switch-to-buffer nil nil)))
|
||
|
||
;; XEmacs: this can be implemented using modeline keymaps, but there
|
||
;; is no use, as we have horizontal scrollbar (as the docstring
|
||
;; hints.)
|
||
(defun dframe-mouse-hscroll (e)
|
||
"Read a mouse event E from the mode line, and horizontally scroll.
|
||
If the mouse is being clicked on the far left, or far right of the
|
||
mode-line. This is only useful for non-XEmacs."
|
||
(interactive "e")
|
||
(let* ((x-point (car (nth 2 (car (cdr e)))))
|
||
(pixels-per-10-col (/ (* 10 (frame-pixel-width))
|
||
(frame-width)))
|
||
(click-col (1+ (/ (* 10 x-point) pixels-per-10-col)))
|
||
)
|
||
(cond ((< click-col 3)
|
||
(scroll-left 2))
|
||
((> click-col (- (window-width) 5))
|
||
(scroll-right 2))
|
||
(t (dframe-message
|
||
"Click on the edge of the modeline to scroll left/right")))
|
||
))
|
||
|
||
(provide 'dframe)
|
||
|
||
;; arch-tag: df9b91b6-e85e-4a76-a02e-b3cb5b686bd4
|
||
;;; dframe.el ends here
|