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1 | ;;; dframe --- dedicate frame support modes |
2 | ||
3 | ;;; Copyright (C) 1996, 97, 98, 99, 2000, 01, 02, 03, 04 Free Software Foundation | |
4 | ||
5 | ;; Author: Eric M. Ludlam <zappo@gnu.org> | |
6 | ;; Keywords: file, tags, tools | |
7cfc18c4 CY |
7 | |
8 | (defvar dframe-version "1.3" | |
9 | "The current version of the dedicated frame library.") | |
10 | ||
11 | ;; This file is part of GNU Emacs. | |
12 | ||
13 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
14 | ;; it under the terms of the GNU General Public License as published by | |
15 | ;; the Free Software Foundation; either version 2, or (at your option) | |
16 | ;; any later version. | |
17 | ||
18 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
19 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | ;; GNU General Public License for more details. | |
22 | ||
23 | ;; You should have received a copy of the GNU General Public License | |
24 | ;; along with GNU Emacs; see the file COPYING. If not, write to the | |
24bbdbef CY |
25 | ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
26 | ;; Boston, MA 02110-1301, USA. | |
7cfc18c4 CY |
27 | |
28 | ;;; Commentary: | |
29 | ;; | |
30 | ;; This code was developed and maintained as a part of speedbar since 1996. | |
31 | ;; It became its own support utility in Aug 2000. | |
32 | ;; | |
33 | ;; Dedicated frame mode is an Emacs independent library for supporting | |
34 | ;; a program/buffer combination that resides in a dedicated frame. | |
35 | ;; Support of this nature requires several complex interactions with the | |
36 | ;; user which this library will provide, including: | |
37 | ;; | |
38 | ;; * Creation of a frame. Positioned relatively. | |
39 | ;; Includes a frame cache for User position caching. | |
40 | ;; * Switching between frames. | |
41 | ;; * Timed activities using idle-timers | |
42 | ;; * Frame/buffer killing hooks | |
43 | ;; * Mouse-3 position relative menu | |
44 | ;; * Mouse motion, help-echo hacks | |
45 | ;; * Mouse clicking, double clicking, & Xemacs image clicking hack | |
46 | ;; * Mode line hacking | |
47 | ;; * Utilities for use in a program covering: | |
48 | ;; o keymap massage for some actions | |
49 | ;; o working with an associated buffer | |
50 | ;; o shift-click | |
51 | ;; o detaching a frame | |
52 | ;; o focus-shifting & optional frame jumping | |
53 | ;; o currently active frame. | |
54 | ;; o message/y-or-n-p | |
55 | ;; o mouse set point | |
56 | ;; | |
57 | ;; To Use: | |
58 | ;; 1) (require 'dframe) | |
59 | ;; 2) Variable Setup: | |
60 | ;; -frame-parameters -- Frame parameters for Emacs. | |
61 | ;; -frame-plist -- Frame parameters for XEmacs. | |
62 | ;; -- Not on parameter lists: They can optionally include width | |
63 | ;; and height. If width or height is not included, then it will | |
64 | ;; be provided to match the originating frame. In general, | |
65 | ;; turning off the menu bar, mode line, and minibuffer can | |
66 | ;; provide a smaller window, or more display area. | |
67 | ;; -track-mouse-flag -- mouse tracking on/off specific to your tool. | |
68 | ;; -update-flag -- app toggle for timer use. Init from | |
69 | ;; `dframe-have-timer-flag'. This is nil for terminals, since | |
70 | ;; updating a frame in a terminal is not useful to the user. | |
71 | ;; -key-map -- Your keymap. Call `dframe-update-keymap' on it. | |
72 | ;; -buffer, -frame, -cached-frame -- Variables used to track your | |
73 | ;; applications buffer, frame, or frame cache (when hidden). See | |
74 | ;; `dframe-frame-mode' for details. | |
75 | ;; -before-delete-hook, -before-popup-hook, -after-create-hook -- | |
76 | ;; Hooks to have called. The `-after-create-hook' probably wants | |
77 | ;; to call a function which calls `dframe-reposition-frame' in an | |
78 | ;; appropriate manner. | |
79 | ;; 3) Function Setup: | |
80 | ;; your-frame-mode -- function to toggle your app frame on and off. | |
81 | ;; its tasks are: | |
82 | ;; a) create a buffer | |
83 | ;; b) Call `dframe-frame-mode'. (See its doc) | |
84 | ;; c) If successful (your -frame variable has a value), call | |
85 | ;; timer setup if applicable. | |
86 | ;; your-frame-reposition- -- Function to call from after-create-hook to | |
87 | ;; reposition your frame with `dframe-repsoition-frame'. | |
88 | ;; your-mode -- Set up the major mode of the buffer for your app. | |
89 | ;; Set these variables: dframe-track-mouse-function, | |
90 | ;; dframe-help-echo-function, | |
91 | ;; dframe-mouse-click-function, | |
92 | ;; dframe-mouse-position-function. | |
93 | ;; See speedbar's implementation of these functions. | |
94 | ;; `speedbar-current-frame', `speedbar-get-focus', `speedbar-message', | |
95 | ;; `speedbar-y-or-n-p', `speedbar-set-timer', `speedbar-click', | |
96 | ;; `speedbar-position-cursor-on-line' | |
97 | ;; 4) Handling mouse clicks, and help text: | |
98 | ;; dframe-track-mouse, dframe-help-echo-function -- | |
99 | ;; These variables need to be set to functions that display info | |
100 | ;; based on the mouse's position. | |
101 | ;; Text propert 'help-echo, set to `dframe-help-echo', which will | |
102 | ;; call `dframe-help-echo-function'. | |
103 | ;; Have a `-click' function, it can call `dframe-quick-mouse' for | |
104 | ;; positioning. If the variable `dframe-power-click' is non-nil, | |
105 | ;; then `shift' was held down during the click. | |
106 | ||
107 | ;;; Bugs | |
108 | ;; | |
109 | ;; * The timer managers doesn't handle multiple different timeouts. | |
110 | ;; * You can't specify continuous timouts (as opposed to just lidle timers.) | |
111 | ||
112 | ;;; Code: | |
113 | (defvar dframe-xemacsp (string-match "XEmacs" emacs-version) | |
114 | "Non-nil if we are running in the XEmacs environment.") | |
115 | (defvar dframe-xemacs20p (and dframe-xemacsp | |
116 | (>= emacs-major-version 20))) | |
117 | ||
118 | ;; From custom web page for compatibility between versions of custom | |
119 | ;; with help from ptype@dera.gov.uk (Proto Type) | |
120 | (eval-and-compile | |
121 | (condition-case () | |
122 | (require 'custom) | |
123 | (error nil)) | |
124 | (if (and (featurep 'custom) (fboundp 'custom-declare-variable) | |
125 | ;; Some XEmacsen w/ custom don't have :set keyword. | |
126 | ;; This protects them against custom. | |
127 | (fboundp 'custom-initialize-set)) | |
128 | nil ;; We've got what we needed | |
129 | ;; We have the old custom-library, hack around it! | |
130 | (if (boundp 'defgroup) | |
131 | nil | |
132 | (defmacro defgroup (&rest args) | |
133 | nil)) | |
134 | (if (boundp 'defface) | |
135 | nil | |
136 | (defmacro defface (var values doc &rest args) | |
137 | (` (progn | |
138 | (defvar (, var) (quote (, var))) | |
139 | ;; To make colors for your faces you need to set your .Xdefaults | |
140 | ;; or set them up ahead of time in your .emacs file. | |
141 | (make-face (, var)) | |
142 | )))) | |
143 | (if (boundp 'defcustom) | |
144 | nil | |
145 | (defmacro defcustom (var value doc &rest args) | |
146 | (` (defvar (, var) (, value) (, doc))))))) | |
147 | ||
148 | \f | |
149 | ;;; Compatibility functions | |
150 | ;; | |
151 | (if (fboundp 'frame-parameter) | |
152 | ||
153 | (defalias 'dframe-frame-parameter 'frame-parameter) | |
154 | ||
155 | (defun dframe-frame-parameter (frame parameter) | |
156 | "Return FRAME's PARAMETER value." | |
157 | (cdr (assoc parameter (frame-parameters frame))))) | |
158 | ||
159 | \f | |
160 | ;;; Variables | |
161 | ;; | |
162 | (defgroup dframe nil | |
163 | "Faces used in dframe." | |
164 | :prefix "dframe-" | |
165 | :group 'dframe) | |
166 | ||
167 | (defvar dframe-have-timer-flag | |
168 | (and (or (fboundp 'run-with-idle-timer) | |
169 | (fboundp 'start-itimer) | |
170 | (boundp 'post-command-idle-hook)) | |
171 | (if (fboundp 'display-graphic-p) | |
172 | (display-graphic-p) | |
173 | window-system)) | |
174 | "Non-nil means that timers are available for this Emacs.") | |
175 | ||
176 | (defcustom dframe-update-speed | |
177 | (if dframe-xemacsp | |
178 | (if dframe-xemacs20p | |
179 | 2 ; 1 is too obrusive in XEmacs | |
180 | 5) ; when no idleness, need long delay | |
181 | 1) | |
182 | "*Idle time in seconds needed before dframe will update itself. | |
183 | Updates occur to allow dframe to display directory information | |
184 | relevant to the buffer you are currently editing." | |
185 | :group 'dframe | |
186 | :type 'integer) | |
187 | ||
188 | (defcustom dframe-activity-change-focus-flag nil | |
189 | "*Non-nil means the selected frame will change based on activity. | |
190 | Thus, if a file is selected for edit, the buffer will appear in the | |
191 | selected frame and the focus will change to that frame." | |
192 | :group 'dframe | |
193 | :type 'boolean) | |
194 | ||
195 | (defcustom dframe-after-select-attached-frame-hook nil | |
196 | "*Hook run after dframe has selected the attached frame." | |
197 | :group 'dframe | |
198 | :type 'hook) | |
199 | ||
200 | (defvar dframe-track-mouse-function nil | |
201 | "*A function to call when the mouse is moved in the given frame. | |
202 | Typically used to display info about the line under the mouse.") | |
203 | (make-variable-buffer-local 'dframe-track-mouse-function) | |
204 | ||
205 | (defvar dframe-help-echo-function nil | |
206 | "*A function to call when help-echo is used in newer versions of Emacs. | |
207 | Typically used to display info about the line under the mouse.") | |
208 | (make-variable-buffer-local 'dframe-help-echo-function) | |
209 | ||
210 | (defvar dframe-mouse-click-function nil | |
211 | "*A function to call when the mouse is clicked. | |
212 | Valid clicks are mouse 2, our double mouse 1.") | |
213 | (make-variable-buffer-local 'dframe-mouse-click-function) | |
214 | ||
215 | (defvar dframe-mouse-position-function nil | |
216 | "*A function to called to position the cursor for a mouse click.") | |
217 | (make-variable-buffer-local 'dframe-mouse-position-function) | |
218 | ||
219 | (defvar dframe-power-click nil | |
220 | "Never set this by hand. Value is t when S-mouse activity occurs.") | |
221 | ||
222 | (defvar dframe-timer nil | |
223 | "The dframe timer used for updating the buffer.") | |
224 | (make-variable-buffer-local 'dframe-timer) | |
225 | ||
226 | (defvar dframe-attached-frame nil | |
227 | "The frame which started a frame mode. | |
228 | This is the frame from which all interesting activities will go | |
229 | for the mode using dframe.") | |
230 | (make-variable-buffer-local 'dframe-attached-frame) | |
231 | ||
232 | (defvar dframe-controlled nil | |
233 | "Is this buffer controlled by a dedicated frame. | |
234 | Local to those buffers, as a function called that created it.") | |
235 | (make-variable-buffer-local 'dframe-controlled) | |
236 | ||
237 | (defun dframe-update-keymap (map) | |
238 | "Update the keymap MAP for dframe default bindings." | |
239 | ;; Frame control | |
240 | (define-key map "q" 'dframe-close-frame) | |
241 | (define-key map "Q" 'delete-frame) | |
242 | ||
243 | ;; Override switch to buffer to never hack our frame. | |
244 | (substitute-key-definition 'switch-to-buffer | |
245 | 'dframe-switch-buffer-attached-frame | |
246 | map global-map) | |
247 | ||
248 | (if dframe-xemacsp | |
249 | (progn | |
250 | ;; mouse bindings so we can manipulate the items on each line | |
251 | (define-key map 'button2 'dframe-click) | |
252 | (define-key map '(shift button2) 'dframe-power-click) | |
253 | ;; Info doc fix from Bob Weiner | |
254 | (if (featurep 'infodoc) | |
255 | nil | |
256 | (define-key map 'button3 'dframe-xemacs-popup-kludge)) | |
257 | ) | |
258 | ||
259 | ;; mouse bindings so we can manipulate the items on each line | |
260 | (define-key map [down-mouse-1] 'dframe-double-click) | |
261 | (define-key map [mouse-2] 'dframe-click) | |
262 | ;; This is the power click for new frames, or refreshing a cache | |
263 | (define-key map [S-mouse-2] 'dframe-power-click) | |
264 | ;; This adds a small unecessary visual effect | |
265 | ;;(define-key map [down-mouse-2] 'dframe-quick-mouse) | |
266 | ||
267 | (define-key map [down-mouse-3] 'dframe-emacs-popup-kludge) | |
268 | ||
269 | ;; This lets the user scroll as if we had a scrollbar... well maybe not | |
270 | (define-key map [mode-line mouse-2] 'dframe-mouse-hscroll) | |
271 | ;; another handy place users might click to get our menu. | |
272 | (define-key map [mode-line down-mouse-1] | |
273 | 'dframe-emacs-popup-kludge) | |
274 | ||
275 | ;; We can't switch buffers with the buffer mouse menu. Lets hack it. | |
276 | (define-key map [C-down-mouse-1] 'dframe-hack-buffer-menu) | |
277 | ||
278 | ;; Lastly, we want to track the mouse. Play here | |
279 | (define-key map [mouse-movement] 'dframe-track-mouse) | |
280 | )) | |
281 | ||
282 | (defun dframe-live-p (frame) | |
283 | "Return non-nil if FRAME is currently available." | |
284 | (and frame (frame-live-p frame) (frame-visible-p frame))) | |
285 | ||
286 | (defun dframe-frame-mode (arg frame-var cache-var buffer-var frame-name | |
287 | local-mode-fn | |
288 | &optional | |
289 | parameters | |
290 | delete-hook popup-hook create-hook | |
291 | ) | |
292 | "Manage a frame for an application, enabling it when ARG is positive. | |
293 | FRAME-VAR is a variable used to cache the frame being used. | |
294 | This frame is either resurrected, hidden, killed, etc based on | |
295 | the value. | |
296 | CACHE-VAR is a variable used to cache a cached frame. | |
297 | BUFFER-VAR is a variable used to cache the buffer being used in dframe. | |
298 | This buffer will have `dframe-mode' run on it. | |
299 | FRAME-NAME is the name of the frame to create. | |
300 | LOCAL-MODE-FN is the function used to call this one. | |
301 | PARAMETERS are frame parameters to apply to this dframe. | |
302 | DELETE-HOOK are hooks to run when deleting a frame. | |
303 | POPUP-HOOK are hooks to run before showing a frame. | |
304 | CREATE-HOOK are hooks to run after creating a frame." | |
305 | ;; toggle frame on and off. | |
306 | (if (not arg) (if (dframe-live-p (symbol-value frame-var)) | |
307 | (setq arg -1) (setq arg 1))) | |
308 | ;; Make sure the current buffer is set. | |
309 | (set-buffer (symbol-value buffer-var)) | |
310 | ;; turn the frame off on neg number | |
311 | (if (and (numberp arg) (< arg 0)) | |
312 | (progn | |
313 | (run-hooks 'delete-hook) | |
314 | (if (and (symbol-value frame-var) | |
315 | (frame-live-p (symbol-value frame-var))) | |
316 | (progn | |
317 | (set cache-var (symbol-value frame-var)) | |
318 | (make-frame-invisible (symbol-value frame-var)))) | |
319 | (set frame-var nil)) | |
320 | ;; Set this as our currently attached frame | |
321 | (setq dframe-attached-frame (selected-frame)) | |
322 | (run-hooks 'popup-hook) | |
323 | ;; Updated the buffer passed in to contain all the hacks needed | |
324 | ;; to make it work well in a dedicated window. | |
325 | (save-excursion | |
326 | (set-buffer (symbol-value buffer-var)) | |
327 | ;; Declare this buffer a dedicated frame | |
328 | (setq dframe-controlled local-mode-fn) | |
329 | ||
330 | (if dframe-xemacsp | |
331 | ;; Hack the XEmacs mouse-motion handler | |
332 | (with-no-warnings | |
333 | ;; Hack the XEmacs mouse-motion handler | |
334 | (set (make-local-variable 'mouse-motion-handler) | |
335 | 'dframe-track-mouse-xemacs) | |
336 | ;; Hack the double click handler | |
337 | (make-local-variable 'mouse-track-click-hook) | |
338 | (add-hook 'mouse-track-click-hook | |
339 | (lambda (event count) | |
340 | (if (/= (event-button event) 1) | |
341 | nil ; Do normal operations. | |
342 | (cond ((eq count 1) | |
343 | (dframe-quick-mouse event)) | |
344 | ((or (eq count 2) | |
345 | (eq count 3)) | |
346 | (dframe-click event) | |
347 | (dframe-quick-mouse event))) | |
348 | ;; Don't do normal operations. | |
349 | t)))) | |
350 | ;; Enable mouse tracking in emacs | |
351 | (if dframe-track-mouse-function | |
352 | (set (make-local-variable 'track-mouse) t)) ;this could be messy. | |
353 | ;; disable auto-show-mode for Emacs | |
354 | (setq auto-show-mode nil)) | |
355 | ;;;; DISABLED: This causes problems for users with multiple frames. | |
356 | ;;;; ;; Set this up special just for the passed in buffer | |
357 | ;;;; ;; Terminal minibuffer stuff does not require this. | |
358 | ;;;; (if (and (or (assoc 'minibuffer parameters) | |
359 | ;;;; ;; XEmacs plist is not an association list | |
360 | ;;;; (member 'minibuffer parameters)) | |
361 | ;;;; window-system (not (eq window-system 'pc)) | |
362 | ;;;; (null default-minibuffer-frame)) | |
363 | ;;;; (progn | |
364 | ;;;; (make-local-variable 'default-minibuffer-frame) | |
365 | ;;;; (setq default-minibuffer-frame dframe-attached-frame)) | |
366 | ;;;; ) | |
367 | ;; Override `temp-buffer-show-hook' so that help and such | |
368 | ;; put their stuff into a frame other than our own. | |
369 | ;; Correct use of `temp-buffer-show-function': Bob Weiner | |
370 | (if (and (boundp 'temp-buffer-show-hook) | |
371 | (boundp 'temp-buffer-show-function)) | |
372 | (progn (make-local-variable 'temp-buffer-show-hook) | |
373 | (setq temp-buffer-show-hook temp-buffer-show-function))) | |
374 | (make-local-variable 'temp-buffer-show-function) | |
375 | (setq temp-buffer-show-function 'dframe-temp-buffer-show-function) | |
376 | ;; If this buffer is killed, we must make sure that we destroy | |
377 | ;; the frame the dedicated window is in. | |
378 | (add-hook 'kill-buffer-hook `(lambda () | |
379 | (let ((skilling (boundp 'skilling))) | |
380 | (if skilling | |
381 | nil | |
382 | (if dframe-controlled | |
383 | (progn | |
384 | (funcall dframe-controlled -1) | |
385 | (setq ,buffer-var nil) | |
386 | ))))) | |
387 | t t) | |
388 | ) | |
389 | ;; Get the frame to work in | |
390 | (if (frame-live-p (symbol-value cache-var)) | |
391 | (progn | |
392 | (set frame-var (symbol-value cache-var)) | |
393 | (make-frame-visible (symbol-value frame-var)) | |
394 | (select-frame (symbol-value frame-var)) | |
395 | (set-window-dedicated-p (selected-window) nil) | |
396 | (if (not (eq (current-buffer) (symbol-value buffer-var))) | |
397 | (switch-to-buffer (symbol-value buffer-var))) | |
398 | (set-window-dedicated-p (selected-window) t) | |
399 | (raise-frame (symbol-value frame-var)) | |
400 | ) | |
401 | (if (frame-live-p (symbol-value frame-var)) | |
402 | (raise-frame (symbol-value frame-var)) | |
403 | (set frame-var | |
404 | (if dframe-xemacsp | |
405 | ;; Only guess height if it is not specified. | |
406 | (if (member 'height parameters) | |
407 | (make-frame parameters) | |
408 | (make-frame (nconc (list 'height | |
409 | (dframe-needed-height)) | |
410 | parameters))) | |
411 | (let* ((mh (dframe-frame-parameter dframe-attached-frame | |
412 | 'menu-bar-lines)) | |
413 | (paramsa | |
414 | ;; Only add a guessed height if one is not specified | |
415 | ;; in the input parameters. | |
416 | (if (assoc 'height parameters) | |
417 | parameters | |
418 | (append | |
419 | parameters | |
420 | (list (cons 'height (+ mh (frame-height))))))) | |
421 | (params | |
422 | ;; Only add a guessed width if one is not specified | |
423 | ;; in the input parameters. | |
424 | (if (assoc 'width parameters) | |
425 | paramsa | |
426 | (append | |
427 | paramsa | |
428 | (list (cons 'width (frame-width)))))) | |
429 | (frame | |
430 | (if (or (< emacs-major-version 20) | |
431 | (not (eq window-system 'x))) | |
432 | (make-frame params) | |
433 | (let ((x-pointer-shape x-pointer-top-left-arrow) | |
434 | (x-sensitive-text-pointer-shape | |
435 | x-pointer-hand2)) | |
436 | (make-frame params))))) | |
437 | frame))) | |
438 | ;; Put the buffer into the frame | |
439 | (save-excursion | |
440 | (select-frame (symbol-value frame-var)) | |
441 | (switch-to-buffer (symbol-value buffer-var)) | |
442 | (set-window-dedicated-p (selected-window) t)) | |
443 | ;; Run hooks (like reposition) | |
444 | (run-hooks 'create-hook) | |
445 | ;; Frame name | |
446 | (if (and (or (null window-system) (eq window-system 'pc)) | |
447 | (fboundp 'set-frame-name)) | |
448 | (save-window-excursion | |
449 | (select-frame (symbol-value frame-var)) | |
450 | (set-frame-name frame-name))) | |
451 | ;; On a terminal, raise the frame or the user will | |
452 | ;; be confused. | |
453 | (if (not window-system) | |
454 | (select-frame (symbol-value frame-var))) | |
455 | ))) ) | |
456 | ||
457 | (defun dframe-reposition-frame (new-frame parent-frame location) | |
458 | "Move NEW-FRAME to be relative to PARENT-FRAME. | |
459 | LOCATION can be one of 'random, 'left, 'right, 'left-right, or 'top-bottom." | |
460 | (if dframe-xemacsp | |
461 | (dframe-reposition-frame-xemacs new-frame parent-frame location) | |
462 | (dframe-reposition-frame-emacs new-frame parent-frame location))) | |
463 | ||
464 | (defun dframe-reposition-frame-emacs (new-frame parent-frame location) | |
465 | "Move NEW-FRAME to be relative to PARENT-FRAME. | |
466 | LOCATION can be one of 'random, 'left-right, 'top-bottom, or | |
467 | a cons cell indicationg a position of the form (LEFT . TOP)." | |
468 | (let* ((pfx (dframe-frame-parameter parent-frame 'left)) | |
469 | (pfy (dframe-frame-parameter parent-frame 'top)) | |
470 | (pfw (frame-pixel-width parent-frame)) | |
471 | (pfh (frame-pixel-height parent-frame)) | |
472 | (nfw (frame-pixel-width new-frame)) | |
473 | (nfh (frame-pixel-height new-frame)) | |
474 | newleft newtop | |
475 | ) | |
476 | ;; Position dframe. | |
477 | (if (or (not window-system) (eq window-system 'pc)) | |
478 | ;; Do no positioning if not on a windowing system, | |
479 | nil | |
480 | ;; Rebuild pfx,pfy to be absolute positions. | |
481 | (setq pfx (if (not (consp pfx)) | |
482 | pfx | |
483 | ;; If pfx is a list, that means we grow | |
484 | ;; from a specific edge of the display. | |
485 | ;; Convert that to the distance from the | |
486 | ;; left side of the display. | |
487 | (if (eq (car pfx) '-) | |
488 | ;; A - means distance from the right edge | |
489 | ;; of the display, or DW - pfx - framewidth | |
490 | (- (x-display-pixel-width) (car (cdr pfx)) pfw) | |
491 | (car (cdr pfx)))) | |
492 | pfy (if (not (consp pfy)) | |
493 | pfy | |
494 | ;; If pfy is a list, that means we grow | |
495 | ;; from a specific edge of the display. | |
496 | ;; Convert that to the distance from the | |
497 | ;; left side of the display. | |
498 | (if (eq (car pfy) '-) | |
499 | ;; A - means distance from the right edge | |
500 | ;; of the display, or DW - pfx - framewidth | |
501 | (- (x-display-pixel-height) (car (cdr pfy)) pfh) | |
502 | (car (cdr pfy)))) | |
503 | ) | |
504 | (cond ((eq location 'right) | |
505 | (setq newleft (+ pfx pfw 5) | |
506 | newtop pfy)) | |
507 | ((eq location 'left) | |
508 | (setq newleft (+ pfx 10 nfw) | |
509 | newtop pfy)) | |
510 | ((eq location 'left-right) | |
511 | (setq newleft | |
512 | ;; Decide which side to put it on. 200 is just a | |
513 | ;; buffer for the left edge of the screen. The | |
514 | ;; extra 10 is just dressings for window | |
515 | ;; decorations. | |
516 | (let* ((left-guess (- pfx 10 nfw)) | |
517 | (right-guess (+ pfx pfw 5)) | |
518 | (left-margin left-guess) | |
519 | (right-margin (- (x-display-pixel-width) | |
520 | right-guess 5 nfw))) | |
521 | (cond ((>= left-margin 0) left-guess) | |
522 | ((>= right-margin 0) right-guess) | |
523 | ;; otherwise choose side we overlap less | |
524 | ((> left-margin right-margin) 0) | |
525 | (t (- (x-display-pixel-width) nfw 5)))) | |
526 | newtop pfy | |
527 | )) | |
528 | ((eq location 'top-bottom) | |
529 | (setq newleft pfx | |
530 | newtop | |
531 | ;; Try and guess if we should be on the top or bottom. | |
532 | (let* ((top-guess (- pfy 15 nfh)) | |
533 | (bottom-guess (+ pfy 5 pfh)) | |
534 | (top-margin top-guess) | |
535 | (bottom-margin (- (x-display-pixel-height) | |
536 | bottom-guess 5 nfh))) | |
537 | (cond ((>= top-margin 0) top-guess) | |
538 | ((>= bottom-margin 0) bottom-guess) | |
539 | ;; Choose a side to overlap the least. | |
540 | ((> top-margin bottom-margin) 0) | |
541 | (t (- (x-display-pixel-height) nfh 5))))) | |
542 | ) | |
543 | ((consp location) | |
544 | (setq newleft (or (car location) 0) | |
545 | newtop (or (cdr location) 0))) | |
546 | (t nil)) | |
547 | (modify-frame-parameters new-frame | |
548 | (list (cons 'left newleft) | |
549 | (cons 'top newtop)))))) | |
550 | ||
551 | (defun dframe-reposition-frame-xemacs (new-frame parent-frame location) | |
552 | "Move NEW-FRAME to be relative to PARENT-FRAME. | |
553 | LOCATION can be one of 'random, 'left-right, or 'top-bottom." | |
554 | ;; Not yet implemented | |
555 | ) | |
556 | ||
557 | ;; XEmacs function only. | |
558 | (defun dframe-needed-height (&optional frame) | |
559 | "The needed height for the tool bar FRAME (in characters)." | |
560 | (or frame (setq frame (selected-frame))) | |
561 | ;; The 1 is the missing modeline/minibuffer | |
562 | (+ 1 (/ (frame-pixel-height frame) | |
563 | ;; This obscure code avoids a byte compiler warning in Emacs. | |
564 | (let ((f 'face-height)) | |
565 | (funcall f 'default frame))))) | |
566 | ||
567 | (defun dframe-detach (frame-var cache-var buffer-var) | |
568 | "Detatch the frame in symbol FRAME-VAR. | |
569 | CACHE-VAR and BUFFER-VAR are symbols as in `dframe-frame-mode'" | |
570 | (save-excursion | |
571 | (set-buffer (symbol-value buffer-var)) | |
572 | (rename-buffer (buffer-name) t) | |
573 | (let ((oldframe (symbol-value frame-var))) | |
574 | (set buffer-var nil) | |
575 | (set frame-var nil) | |
576 | (set cache-var nil) | |
577 | (make-variable-buffer-local frame-var) | |
578 | (set frame-var oldframe) | |
579 | ))) | |
580 | ||
581 | ;;; Special frame event proxies | |
582 | ;; | |
583 | (if (boundp 'special-event-map) | |
584 | (progn | |
585 | (define-key special-event-map [make-frame-visible] | |
586 | 'dframe-handle-make-frame-visible) | |
587 | (define-key special-event-map [iconify-frame] | |
588 | 'dframe-handle-iconify-frame) | |
589 | (define-key special-event-map [delete-frame] | |
590 | 'dframe-handle-delete-frame)) | |
591 | ) | |
592 | ||
593 | (defvar dframe-make-frame-visible-function nil | |
594 | "Function used when a dframe controlled frame is de-iconified. | |
595 | The function must take an EVENT.") | |
596 | (defvar dframe-iconify-frame-function nil | |
597 | "Function used when a dframe controlled frame is iconified. | |
598 | The function must take an EVENT.") | |
599 | (defvar dframe-delete-frame-function nil | |
600 | "Function used when a frame attached to a dframe frame is deleted. | |
601 | The function must take an EVENT.") | |
602 | ||
603 | (defun dframe-handle-make-frame-visible (e) | |
604 | "Handle a `make-frame-visible' event. | |
605 | Should enables auto-updating if the last state was also enabled. | |
606 | Argument E is the event making the frame visible." | |
607 | (interactive "e") | |
608 | (let ((f last-event-frame)) | |
609 | (if (and (dframe-attached-frame f) | |
610 | dframe-make-frame-visible-function) | |
611 | (funcall dframe-make-frame-visible-function e) | |
612 | ))) | |
613 | ||
614 | (defun dframe-handle-iconify-frame (e) | |
615 | "Handle a `iconify-frame' event. | |
616 | Should disables auto-updating if the last state was also enabled. | |
617 | Argument E is the event iconifying the frame." | |
618 | (interactive "e") | |
619 | (let ((f last-event-frame)) | |
620 | (if (and (dframe-attached-frame f) | |
621 | dframe-iconify-frame-function e) | |
622 | (funcall dframe-iconify-frame-function) | |
623 | ))) | |
624 | ||
625 | (defun dframe-handle-delete-frame (e) | |
626 | "Handle `delete-frame' event. | |
627 | Argument E is the event deleting the frame." | |
628 | (interactive "e") | |
629 | (let ((fl (frame-list)) | |
630 | (sf (selected-frame))) | |
631 | ;; Loop over all frames. If dframe-delete-frame-function is | |
632 | ;; non-nil, call it. | |
633 | (while fl | |
634 | (select-frame (car fl)) | |
635 | (if dframe-delete-frame-function | |
636 | (funcall dframe-delete-frame-function e)) | |
637 | (setq fl (cdr fl))) | |
638 | (if (frame-live-p sf) | |
639 | (select-frame sf)) | |
640 | (handle-delete-frame e))) | |
641 | ||
642 | ||
643 | ;;; Utilities | |
644 | ;; | |
645 | (defun dframe-get-focus (frame-var activator &optional hook) | |
646 | "Change frame focus to or from a dedicated frame. | |
647 | If the selected frame is not in the symbol FRAME-VAR, then FRAME-VAR | |
648 | frame is selected. If the FRAME-VAR is active, then select the | |
649 | attached frame. If FRAME-VAR is nil, ACTIVATOR is called to | |
650 | created it. HOOK is an optional argument of hooks to run when | |
651 | selecting FRAME." | |
652 | (interactive) | |
653 | (if (eq (selected-frame) (symbol-value frame-var)) | |
654 | (if (frame-live-p dframe-attached-frame) | |
655 | (dframe-select-attached-frame)) | |
656 | ;; make sure we have a frame | |
657 | (if (not (frame-live-p (symbol-value frame-var))) | |
658 | (funcall activator 1)) | |
659 | ;; go there | |
660 | (select-frame (symbol-value frame-var)) | |
661 | ) | |
662 | (other-frame 0) | |
663 | ;; If updates are off, then refresh the frame (they want it now...) | |
664 | (run-hooks 'hook)) | |
665 | ||
666 | ||
667 | (defun dframe-close-frame () | |
668 | "Close the current frame if it is dedicated." | |
669 | (interactive) | |
670 | (if dframe-controlled | |
671 | (let ((b (current-buffer))) | |
672 | (funcall dframe-controlled -1) | |
673 | (kill-buffer b)))) | |
674 | ||
675 | (defun dframe-current-frame (frame-var desired-major-mode) | |
676 | "Return the existing dedicated frame to use. | |
677 | FRAME-VAR is the variable storing the currently active dedicated frame. | |
678 | If the current frame's buffer uses DESIRED-MAJOR-MODE, then use that frame." | |
679 | (if (not (eq (selected-frame) (symbol-value frame-var))) | |
680 | (if (and (eq major-mode 'desired-major-mode) | |
681 | (get-buffer-window (current-buffer)) | |
682 | (window-frame (get-buffer-window (current-buffer)))) | |
683 | (window-frame (get-buffer-window (current-buffer))) | |
684 | (symbol-value frame-var)) | |
685 | (symbol-value frame-var))) | |
686 | ||
687 | (defun dframe-attached-frame (&optional frame) | |
688 | "Return the attached frame belonging to the dframe controlled frame FRAME. | |
689 | If optional arg FRAME is nil just return `dframe-attached-frame'." | |
690 | (save-excursion | |
691 | (if frame (select-frame frame)) | |
692 | dframe-attached-frame)) | |
693 | ||
694 | (defun dframe-select-attached-frame (&optional frame) | |
695 | "Switch to the frame the dframe controlled frame FRAME was started from. If | |
696 | optional arg FRAME is nil assume the attached frame is already selected and | |
697 | just run the hooks `dframe-after-select-attached-frame-hook'. Return the | |
698 | attached frame." | |
699 | (let ((frame (dframe-attached-frame frame))) | |
700 | (if frame (select-frame frame)) | |
701 | (prog1 frame | |
702 | (run-hooks 'dframe-after-select-attached-frame-hook)))) | |
703 | ||
704 | (defmacro dframe-with-attached-buffer (&rest forms) | |
705 | "Execute FORMS in the attached frame's special buffer. | |
706 | Optionally select that frame if necessary." | |
707 | `(save-selected-window | |
708 | ;;(speedbar-set-timer speedbar-update-speed) | |
709 | (dframe-select-attached-frame) | |
710 | ,@forms | |
711 | (dframe-maybee-jump-to-attached-frame))) | |
712 | ||
713 | (defun dframe-maybee-jump-to-attached-frame () | |
714 | "Jump to the attached frame ONLY if this was not a mouse event." | |
715 | (when (or (not (dframe-mouse-event-p last-input-event)) | |
716 | dframe-activity-change-focus-flag) | |
717 | (dframe-select-attached-frame) | |
718 | ;; KB: For what is this - raising the frame?? | |
719 | (other-frame 0))) | |
720 | ||
721 | ||
722 | (defvar dframe-suppress-message-flag nil | |
723 | "Non-nil means that `dframe-message' should just return a string.") | |
724 | ||
725 | (defun dframe-message (fmt &rest args) | |
726 | "Like message, but for use in a dedicated frame. | |
727 | Argument FMT is the format string, and ARGS are the arguments for message." | |
728 | (save-selected-window | |
729 | (if dframe-suppress-message-flag | |
730 | (apply 'format fmt args) | |
731 | (if dframe-attached-frame | |
732 | ;; KB: Here we do not need calling `dframe-select-attached-frame' | |
733 | (select-frame dframe-attached-frame)) | |
734 | (apply 'message fmt args)))) | |
735 | ||
736 | (defun dframe-y-or-n-p (prompt) | |
737 | "Like `y-or-n-p', but for use in a dedicated frame. | |
738 | Argument PROMPT is the prompt to use." | |
739 | (save-selected-window | |
740 | (if (and ;;default-minibuffer-frame | |
741 | dframe-attached-frame | |
742 | ;;(not (eq default-minibuffer-frame dframe-attached-frame)) | |
743 | ) | |
744 | ;; KB: Here we do not need calling `dframe-select-attached-frame' | |
745 | (select-frame dframe-attached-frame)) | |
746 | (y-or-n-p prompt))) | |
747 | \f | |
748 | ;;; timer management | |
749 | ;; | |
750 | ;; Unlike speedbar with a dedicated set of routines, dframe has one master | |
751 | ;; timer, and all dframe users will use it. At least until I figure out a way | |
752 | ;; around that problem. | |
753 | ;; | |
754 | ;; Advantage 1: Two apps with timer/frames can munge the master list | |
755 | ;; to make sure they occur in order. | |
756 | ;; Advantage 2: If a user hits a key between timer functions, we can | |
757 | ;; interrupt them safely. | |
758 | (defvar dframe-client-functions nil | |
759 | "List of client functions using the dframe timer.") | |
760 | ||
761 | (defun dframe-set-timer (timeout fn &optional null-on-error) | |
762 | "Apply a timer with TIMEOUT, to call FN, or remove a timer if TIMEOUT is nil. | |
763 | TIMEOUT is the number of seconds until the dframe controled program | |
764 | timer is called again. When TIMEOUT is nil, turn off all timeouts. | |
765 | This function must be called from the buffer belonging to the program | |
766 | who requested the timer. | |
767 | If NULL-ON-ERROR is a symbol, set it to nil if we cannot create a timer." | |
768 | ;; First, fix up our list of client functions | |
769 | (if timeout | |
770 | (add-to-list 'dframe-client-functions fn) | |
771 | (setq dframe-client-functions (delete fn dframe-client-functions))) | |
772 | ;; Now decided what to do about the timout. | |
773 | (if (or | |
774 | ;; We have a timer, restart the timer with the new time. | |
775 | timeout | |
776 | ;; We have a timer, an off is requested, and no client | |
777 | ;; functions are left, shut er down. | |
778 | (and dframe-timer (not timeout) dframe-client-functions)) | |
779 | ;; Only call the low level function if we are changing the state. | |
780 | (dframe-set-timer-internal timeout null-on-error))) | |
781 | ||
782 | (defun dframe-set-timer-internal (timeout &optional null-on-error) | |
783 | "Apply a timer with TIMEOUT to call the dframe timer manager. | |
784 | If NULL-ON-ERROR is a symbol, set it to nil if we cannot create a timer." | |
785 | (cond | |
786 | ;; XEmacs | |
787 | (dframe-xemacsp | |
788 | (with-no-warnings | |
789 | (if dframe-timer | |
790 | (progn (delete-itimer dframe-timer) | |
791 | (setq dframe-timer nil))) | |
792 | (if timeout | |
793 | (if (and dframe-xemacsp | |
794 | (or (>= emacs-major-version 21) | |
795 | (and (= emacs-major-version 20) | |
796 | (> emacs-minor-version 0)) | |
797 | (and (= emacs-major-version 19) | |
798 | (>= emacs-minor-version 15)))) | |
799 | (setq dframe-timer (start-itimer "dframe" | |
800 | 'dframe-timer-fn | |
801 | timeout | |
802 | timeout | |
803 | t)) | |
804 | (setq dframe-timer (start-itimer "dframe" | |
805 | 'dframe-timer-fn | |
806 | timeout | |
807 | nil)))))) | |
808 | ;; Post 19.31 Emacs | |
809 | ((fboundp 'run-with-idle-timer) | |
810 | (if dframe-timer | |
811 | (progn (cancel-timer dframe-timer) | |
812 | (setq dframe-timer nil))) | |
813 | (if timeout | |
814 | (setq dframe-timer | |
815 | (run-with-idle-timer timeout t 'dframe-timer-fn)))) | |
816 | ;; Emacs 19.30 (Thanks twice: ptype@dra.hmg.gb) | |
817 | ((fboundp 'post-command-idle-hook) | |
818 | (if timeout | |
819 | (add-hook 'post-command-idle-hook 'dframe-timer-fn) | |
820 | (remove-hook 'post-command-idle-hook 'dframe-timer-fn))) | |
821 | ;; Older or other Emacsen with no timers. Set up so that its | |
822 | ;; obvious this emacs can't handle the updates | |
823 | ((symbolp null-on-error) | |
824 | (set null-on-error nil))) | |
825 | ) | |
826 | ||
827 | (defun dframe-timer-fn () | |
828 | "Called due to the dframe timer. | |
829 | Evaluates all cached timer functions in sequence." | |
830 | (let ((l dframe-client-functions)) | |
831 | (while (and l (sit-for 0)) | |
832 | (condition-case er | |
833 | (funcall (car l)) | |
834 | (error (message "DFRAME TIMER ERROR: %S" er))) | |
835 | (setq l (cdr l))))) | |
836 | ||
837 | ;;; Menu hacking for mouse-3 | |
838 | ;; | |
839 | (defconst dframe-pass-event-to-popup-mode-menu | |
840 | (let (max-args) | |
841 | (and (fboundp 'popup-mode-menu) | |
842 | (fboundp 'function-max-args) | |
843 | (setq max-args (function-max-args 'popup-mode-menu)) | |
844 | (not (zerop max-args)))) | |
845 | "The EVENT arg to 'popup-mode-menu' was introduced in XEmacs 21.4.0.") | |
846 | ||
847 | ;; In XEmacs, we make popup menus work on the item over mouse (as | |
848 | ;; opposed to where the point happens to be.) We attain this by | |
849 | ;; temporarily moving the point to that place. | |
850 | ;; Hrvoje Niksic <hniksic@srce.hr> | |
851 | (with-no-warnings | |
852 | (defun dframe-xemacs-popup-kludge (event) | |
853 | "Pop up a menu related to the clicked on item. | |
854 | Must be bound to EVENT." | |
855 | (interactive "e") | |
856 | (save-excursion | |
857 | (if dframe-pass-event-to-popup-mode-menu | |
858 | (popup-mode-menu event) | |
859 | (goto-char (event-closest-point event)) | |
860 | (beginning-of-line) | |
861 | (forward-char (min 5 (- (save-excursion (end-of-line) (point)) | |
862 | (save-excursion (beginning-of-line) (point))))) | |
863 | (popup-mode-menu)) | |
864 | ;; Wait for menu to bail out. `popup-mode-menu' (and other popup | |
865 | ;; menu functions) return immediately. | |
866 | (let (new) | |
867 | (while (not (misc-user-event-p (setq new (next-event)))) | |
868 | (dispatch-event new)) | |
869 | (dispatch-event new)))) | |
870 | );with-no-warnings | |
871 | ||
872 | (defun dframe-emacs-popup-kludge (e) | |
873 | "Pop up a menu related to the clicked on item. | |
874 | Must be bound to event E." | |
875 | (interactive "e") | |
876 | (save-excursion | |
877 | (mouse-set-point e) | |
878 | ;; This gets the cursor where the user can see it. | |
879 | (if (not (bolp)) (forward-char -1)) | |
880 | (sit-for 0) | |
881 | (if (< emacs-major-version 20) | |
882 | (mouse-major-mode-menu e) | |
883 | (mouse-major-mode-menu e nil)))) | |
884 | ||
885 | ;;; Interactive user functions for the mouse | |
886 | ;; | |
887 | (if dframe-xemacsp | |
888 | (defalias 'dframe-mouse-event-p 'button-press-event-p) | |
889 | (defun dframe-mouse-event-p (event) | |
890 | "Return t if the event is a mouse related event." | |
891 | (if (and (listp event) | |
892 | (member (event-basic-type event) | |
893 | '(mouse-1 mouse-2 mouse-3))) | |
894 | t | |
895 | nil))) | |
896 | ||
897 | (defun dframe-track-mouse (event) | |
898 | "For motion EVENT, display info about the current line." | |
899 | (interactive "e") | |
900 | (when (and dframe-track-mouse-function | |
901 | (or dframe-xemacsp ;; XEmacs always safe? | |
902 | (windowp (posn-window (event-end event))) ; Sometimes | |
903 | ; there is no window to jump into. | |
904 | )) | |
905 | ||
906 | (funcall dframe-track-mouse-function event))) | |
907 | ||
908 | (defun dframe-track-mouse-xemacs (event) | |
909 | "For motion EVENT, display info about the current line." | |
910 | (if (functionp (default-value 'mouse-motion-handler)) | |
911 | (funcall (default-value 'mouse-motion-handler) event)) | |
912 | (if dframe-track-mouse-function | |
913 | (funcall dframe-track-mouse-function event))) | |
914 | ||
915 | (defun dframe-help-echo (window &optional buffer position) | |
916 | "Display help based context. | |
917 | The context is in WINDOW, viewing BUFFER, at POSITION. | |
918 | BUFFER and POSITION are optional because XEmacs doesn't use them." | |
919 | (when (and (not dframe-track-mouse-function) | |
920 | (bufferp buffer) | |
921 | dframe-help-echo-function) | |
922 | (let ((dframe-suppress-message-flag t)) | |
923 | (with-current-buffer buffer | |
924 | (if position (goto-char position)) | |
925 | (funcall dframe-help-echo-function))))) | |
926 | ||
927 | (defun dframe-mouse-set-point (e) | |
928 | "Set POINT based on event E. | |
929 | Handles clicking on images in XEmacs." | |
930 | (if (save-excursion | |
931 | (save-window-excursion | |
932 | (mouse-set-point e) | |
933 | (and (fboundp 'event-over-glyph-p) (event-over-glyph-p e)))) | |
934 | ;; We are in XEmacs, and clicked on a picture | |
935 | (with-no-warnings | |
936 | (let ((ext (event-glyph-extent e))) | |
937 | ;; This position is back inside the extent where the | |
938 | ;; junk we pushed into the property list lives. | |
939 | (if (extent-end-position ext) | |
940 | (goto-char (1- (extent-end-position ext))) | |
941 | (mouse-set-point e))) | |
942 | );with-no-warnings | |
943 | ;; We are not in XEmacs, OR we didn't click on a picture. | |
944 | (mouse-set-point e))) | |
945 | ||
946 | (defun dframe-quick-mouse (e) | |
947 | "Since mouse events are strange, this will keep the mouse nicely positioned. | |
948 | This should be bound to mouse event E." | |
949 | (interactive "e") | |
950 | (dframe-mouse-set-point e) | |
951 | (if dframe-mouse-position-function | |
952 | (funcall dframe-mouse-position-function))) | |
953 | ||
954 | (defun dframe-power-click (e) | |
955 | "Activate any `dframe' mouse click as a power click. | |
956 | A power click will dispose of cached data (if available) or bring a buffer | |
957 | up into a different window. | |
958 | This should be bound to mouse event E." | |
959 | (interactive "e") | |
960 | (let ((dframe-power-click t)) | |
961 | (select-frame last-event-frame) | |
962 | (dframe-click e))) | |
963 | ||
964 | (defun dframe-click (e) | |
965 | "Call our clients click function on a user click. | |
966 | E is the event causing the click." | |
967 | (interactive "e") | |
968 | (dframe-mouse-set-point e) | |
969 | (when dframe-mouse-click-function | |
970 | ;; On the off chance of buffer switch, or something incorrectly | |
971 | ;; configured. | |
972 | (funcall dframe-mouse-click-function e))) | |
973 | ||
974 | (defun dframe-double-click (e) | |
975 | "Activate the registered click function on a double click. | |
976 | This must be bound to a mouse event. | |
977 | This should be bound to mouse event E." | |
978 | (interactive "e") | |
979 | ;; Emacs only. XEmacs handles this via `mouse-track-click-hook'. | |
980 | (cond ((eq (car e) 'down-mouse-1) | |
981 | (dframe-mouse-set-point e)) | |
982 | ((eq (car e) 'mouse-1) | |
983 | (dframe-quick-mouse e)) | |
984 | ((or (eq (car e) 'double-down-mouse-1) | |
985 | (eq (car e) 'triple-down-mouse-1)) | |
986 | (dframe-click e)))) | |
987 | ||
988 | ;;; Hacks of normal things. | |
989 | ;; | |
990 | ;; Some normal things that happen in one of these dedicated frames | |
991 | ;; must be handled specially, so that our dedicated frame isn't | |
992 | ;; messed up. | |
993 | (defun dframe-temp-buffer-show-function (buffer) | |
994 | "Placed in the variable `temp-buffer-show-function' in dedicated frames. | |
995 | If a user requests help using \\[help-command] <Key> the temp BUFFER will be | |
996 | redirected into a window on the attached frame." | |
997 | (if dframe-attached-frame (dframe-select-attached-frame)) | |
998 | (pop-to-buffer buffer nil) | |
999 | (other-window -1) | |
1000 | ;; Fix for using this hook on some platforms: Bob Weiner | |
1001 | (cond ((not dframe-xemacsp) | |
1002 | (run-hooks 'temp-buffer-show-hook)) | |
1003 | ((fboundp 'run-hook-with-args) | |
1004 | (run-hook-with-args 'temp-buffer-show-hook buffer)) | |
1005 | ((and (boundp 'temp-buffer-show-hook) | |
1006 | (listp temp-buffer-show-hook)) | |
1007 | (mapcar (function (lambda (hook) (funcall hook buffer))) | |
1008 | temp-buffer-show-hook)))) | |
1009 | ||
1010 | (defun dframe-hack-buffer-menu (e) | |
1011 | "Control mouse 1 is buffer menu. | |
1012 | This hack overrides it so that the right thing happens in the main | |
1013 | Emacs frame, not in the dedicated frame. | |
1014 | Argument E is the event causing this activity." | |
1015 | (interactive "e") | |
1016 | (let ((fn (lookup-key global-map (if dframe-xemacsp | |
1017 | '(control button1) | |
1018 | [C-down-mouse-1]))) | |
1019 | (oldbuff (current-buffer)) | |
1020 | (newbuff nil)) | |
1021 | (unwind-protect | |
1022 | (save-excursion | |
1023 | (set-window-dedicated-p (selected-window) nil) | |
1024 | (call-interactively fn) | |
1025 | (setq newbuff (current-buffer))) | |
1026 | (switch-to-buffer oldbuff) | |
1027 | (set-window-dedicated-p (selected-window) t)) | |
1028 | (if (not (eq newbuff oldbuff)) | |
1029 | (dframe-with-attached-buffer | |
1030 | (switch-to-buffer newbuff))))) | |
1031 | ||
1032 | (defun dframe-switch-buffer-attached-frame (&optional buffer) | |
1033 | "Switch to BUFFER in the attached frame, and raise that frame. | |
1034 | This overrides the default behavior of `switch-to-buffer' which is | |
1035 | broken because of the dedicated frame." | |
1036 | (interactive) | |
1037 | ;; Assume we are in the dedicated frame. | |
1038 | (other-frame 1) | |
1039 | ;; Now switch buffers | |
1040 | (if buffer | |
1041 | (switch-to-buffer buffer) | |
1042 | (call-interactively 'switch-to-buffer nil nil))) | |
1043 | ||
1044 | ;; XEmacs: this can be implemented using modeline keymaps, but there | |
1045 | ;; is no use, as we have horizontal scrollbar (as the docstring | |
1046 | ;; hints.) | |
1047 | (defun dframe-mouse-hscroll (e) | |
1048 | "Read a mouse event E from the mode line, and horizontally scroll. | |
1049 | If the mouse is being clicked on the far left, or far right of the | |
1050 | mode-line. This is only useful for non-XEmacs." | |
1051 | (interactive "e") | |
1052 | (let* ((x-point (car (nth 2 (car (cdr e))))) | |
1053 | (pixels-per-10-col (/ (* 10 (frame-pixel-width)) | |
1054 | (frame-width))) | |
1055 | (click-col (1+ (/ (* 10 x-point) pixels-per-10-col))) | |
1056 | ) | |
1057 | (cond ((< click-col 3) | |
1058 | (scroll-left 2)) | |
1059 | ((> click-col (- (window-width) 5)) | |
1060 | (scroll-right 2)) | |
1061 | (t (dframe-message | |
1062 | "Click on the edge of the modeline to scroll left/right"))) | |
1063 | )) | |
1064 | ||
1065 | (provide 'dframe) | |
1066 | ||
dceb5300 | 1067 | ;; arch-tag: df9b91b6-e85e-4a76-a02e-b3cb5b686bd4 |
7cfc18c4 | 1068 | ;;; dframe.el ends here |