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7cfc18c4 CY |
1 | ;;; dframe --- dedicate frame support modes |
2 | ||
26e98da9 | 3 | ;;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
114f9c96 | 4 | ;; 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. |
7cfc18c4 CY |
5 | |
6 | ;; Author: Eric M. Ludlam <zappo@gnu.org> | |
7 | ;; Keywords: file, tags, tools | |
7cfc18c4 CY |
8 | |
9 | (defvar dframe-version "1.3" | |
10 | "The current version of the dedicated frame library.") | |
11 | ||
12 | ;; This file is part of GNU Emacs. | |
13 | ||
eb3fa2cf | 14 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
7cfc18c4 | 15 | ;; it under the terms of the GNU General Public License as published by |
eb3fa2cf GM |
16 | ;; the Free Software Foundation, either version 3 of the License, or |
17 | ;; (at your option) any later version. | |
7cfc18c4 CY |
18 | |
19 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
20 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
21 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
22 | ;; GNU General Public License for more details. | |
23 | ||
24 | ;; You should have received a copy of the GNU General Public License | |
eb3fa2cf | 25 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
7cfc18c4 CY |
26 | |
27 | ;;; Commentary: | |
28 | ;; | |
29 | ;; This code was developed and maintained as a part of speedbar since 1996. | |
30 | ;; It became its own support utility in Aug 2000. | |
31 | ;; | |
32 | ;; Dedicated frame mode is an Emacs independent library for supporting | |
33 | ;; a program/buffer combination that resides in a dedicated frame. | |
34 | ;; Support of this nature requires several complex interactions with the | |
35 | ;; user which this library will provide, including: | |
36 | ;; | |
37 | ;; * Creation of a frame. Positioned relatively. | |
38 | ;; Includes a frame cache for User position caching. | |
39 | ;; * Switching between frames. | |
40 | ;; * Timed activities using idle-timers | |
41 | ;; * Frame/buffer killing hooks | |
42 | ;; * Mouse-3 position relative menu | |
43 | ;; * Mouse motion, help-echo hacks | |
5b86d3e4 | 44 | ;; * Mouse clicking, double clicking, & XEmacs image clicking hack |
7cfc18c4 CY |
45 | ;; * Mode line hacking |
46 | ;; * Utilities for use in a program covering: | |
47 | ;; o keymap massage for some actions | |
48 | ;; o working with an associated buffer | |
49 | ;; o shift-click | |
50 | ;; o detaching a frame | |
51 | ;; o focus-shifting & optional frame jumping | |
52 | ;; o currently active frame. | |
53 | ;; o message/y-or-n-p | |
54 | ;; o mouse set point | |
55 | ;; | |
56 | ;; To Use: | |
57 | ;; 1) (require 'dframe) | |
58 | ;; 2) Variable Setup: | |
59 | ;; -frame-parameters -- Frame parameters for Emacs. | |
60 | ;; -frame-plist -- Frame parameters for XEmacs. | |
61 | ;; -- Not on parameter lists: They can optionally include width | |
62 | ;; and height. If width or height is not included, then it will | |
63 | ;; be provided to match the originating frame. In general, | |
64 | ;; turning off the menu bar, mode line, and minibuffer can | |
65 | ;; provide a smaller window, or more display area. | |
66 | ;; -track-mouse-flag -- mouse tracking on/off specific to your tool. | |
67 | ;; -update-flag -- app toggle for timer use. Init from | |
68 | ;; `dframe-have-timer-flag'. This is nil for terminals, since | |
69 | ;; updating a frame in a terminal is not useful to the user. | |
70 | ;; -key-map -- Your keymap. Call `dframe-update-keymap' on it. | |
71 | ;; -buffer, -frame, -cached-frame -- Variables used to track your | |
72 | ;; applications buffer, frame, or frame cache (when hidden). See | |
73 | ;; `dframe-frame-mode' for details. | |
74 | ;; -before-delete-hook, -before-popup-hook, -after-create-hook -- | |
75 | ;; Hooks to have called. The `-after-create-hook' probably wants | |
76 | ;; to call a function which calls `dframe-reposition-frame' in an | |
77 | ;; appropriate manner. | |
78 | ;; 3) Function Setup: | |
79 | ;; your-frame-mode -- function to toggle your app frame on and off. | |
80 | ;; its tasks are: | |
81 | ;; a) create a buffer | |
82 | ;; b) Call `dframe-frame-mode'. (See its doc) | |
83 | ;; c) If successful (your -frame variable has a value), call | |
84 | ;; timer setup if applicable. | |
85 | ;; your-frame-reposition- -- Function to call from after-create-hook to | |
86 | ;; reposition your frame with `dframe-repsoition-frame'. | |
87 | ;; your-mode -- Set up the major mode of the buffer for your app. | |
88 | ;; Set these variables: dframe-track-mouse-function, | |
89 | ;; dframe-help-echo-function, | |
90 | ;; dframe-mouse-click-function, | |
91 | ;; dframe-mouse-position-function. | |
92 | ;; See speedbar's implementation of these functions. | |
93 | ;; `speedbar-current-frame', `speedbar-get-focus', `speedbar-message', | |
94 | ;; `speedbar-y-or-n-p', `speedbar-set-timer', `speedbar-click', | |
95 | ;; `speedbar-position-cursor-on-line' | |
96 | ;; 4) Handling mouse clicks, and help text: | |
97 | ;; dframe-track-mouse, dframe-help-echo-function -- | |
98 | ;; These variables need to be set to functions that display info | |
99 | ;; based on the mouse's position. | |
100 | ;; Text propert 'help-echo, set to `dframe-help-echo', which will | |
101 | ;; call `dframe-help-echo-function'. | |
102 | ;; Have a `-click' function, it can call `dframe-quick-mouse' for | |
103 | ;; positioning. If the variable `dframe-power-click' is non-nil, | |
104 | ;; then `shift' was held down during the click. | |
105 | ||
106 | ;;; Bugs | |
107 | ;; | |
108 | ;; * The timer managers doesn't handle multiple different timeouts. | |
5b86d3e4 | 109 | ;; * You can't specify continuous timeouts (as opposed to just idle timers.) |
7cfc18c4 | 110 | |
58eb29e5 JB |
111 | (defvar x-pointer-hand2) |
112 | (defvar x-pointer-top-left-arrow) | |
113 | ||
7cfc18c4 | 114 | ;;; Code: |
7cfc18c4 CY |
115 | \f |
116 | ;;; Compatibility functions | |
117 | ;; | |
78b35906 SM |
118 | (defalias 'dframe-frame-parameter |
119 | (if (fboundp 'frame-parameter) 'frame-parameter | |
120 | (lambda (frame parameter) | |
121 | "Return FRAME's PARAMETER value." | |
122 | (cdr (assoc parameter (frame-parameters frame)))))) | |
7cfc18c4 CY |
123 | |
124 | \f | |
125 | ;;; Variables | |
126 | ;; | |
127 | (defgroup dframe nil | |
128 | "Faces used in dframe." | |
129 | :prefix "dframe-" | |
130 | :group 'dframe) | |
131 | ||
5b86d3e4 GM |
132 | (defvar dframe-have-timer-flag (if (fboundp 'display-graphic-p) |
133 | (display-graphic-p) | |
134 | window-system) | |
135 | "Non-nil means that timers are available for this Emacs. | |
136 | This is nil for terminals, since updating a frame in a terminal | |
137 | is not useful to the user.") | |
7cfc18c4 CY |
138 | |
139 | (defcustom dframe-update-speed | |
5b86d3e4 | 140 | (if (featurep 'xemacs) 2 ; 1 is too obrusive in XEmacs |
7cfc18c4 | 141 | 1) |
78b35906 | 142 | "Idle time in seconds needed before dframe will update itself. |
7cfc18c4 CY |
143 | Updates occur to allow dframe to display directory information |
144 | relevant to the buffer you are currently editing." | |
145 | :group 'dframe | |
146 | :type 'integer) | |
147 | ||
148 | (defcustom dframe-activity-change-focus-flag nil | |
78b35906 | 149 | "Non-nil means the selected frame will change based on activity. |
7cfc18c4 CY |
150 | Thus, if a file is selected for edit, the buffer will appear in the |
151 | selected frame and the focus will change to that frame." | |
152 | :group 'dframe | |
153 | :type 'boolean) | |
154 | ||
155 | (defcustom dframe-after-select-attached-frame-hook nil | |
78b35906 | 156 | "Hook run after dframe has selected the attached frame." |
7cfc18c4 CY |
157 | :group 'dframe |
158 | :type 'hook) | |
159 | ||
160 | (defvar dframe-track-mouse-function nil | |
161 | "*A function to call when the mouse is moved in the given frame. | |
162 | Typically used to display info about the line under the mouse.") | |
163 | (make-variable-buffer-local 'dframe-track-mouse-function) | |
164 | ||
165 | (defvar dframe-help-echo-function nil | |
166 | "*A function to call when help-echo is used in newer versions of Emacs. | |
167 | Typically used to display info about the line under the mouse.") | |
168 | (make-variable-buffer-local 'dframe-help-echo-function) | |
169 | ||
170 | (defvar dframe-mouse-click-function nil | |
171 | "*A function to call when the mouse is clicked. | |
172 | Valid clicks are mouse 2, our double mouse 1.") | |
173 | (make-variable-buffer-local 'dframe-mouse-click-function) | |
174 | ||
175 | (defvar dframe-mouse-position-function nil | |
ca68aad8 | 176 | "*A function to call to position the cursor for a mouse click.") |
7cfc18c4 CY |
177 | (make-variable-buffer-local 'dframe-mouse-position-function) |
178 | ||
179 | (defvar dframe-power-click nil | |
180 | "Never set this by hand. Value is t when S-mouse activity occurs.") | |
181 | ||
182 | (defvar dframe-timer nil | |
183 | "The dframe timer used for updating the buffer.") | |
184 | (make-variable-buffer-local 'dframe-timer) | |
185 | ||
186 | (defvar dframe-attached-frame nil | |
187 | "The frame which started a frame mode. | |
188 | This is the frame from which all interesting activities will go | |
189 | for the mode using dframe.") | |
190 | (make-variable-buffer-local 'dframe-attached-frame) | |
191 | ||
192 | (defvar dframe-controlled nil | |
193 | "Is this buffer controlled by a dedicated frame. | |
194 | Local to those buffers, as a function called that created it.") | |
195 | (make-variable-buffer-local 'dframe-controlled) | |
196 | ||
197 | (defun dframe-update-keymap (map) | |
198 | "Update the keymap MAP for dframe default bindings." | |
199 | ;; Frame control | |
200 | (define-key map "q" 'dframe-close-frame) | |
201 | (define-key map "Q" 'delete-frame) | |
202 | ||
203 | ;; Override switch to buffer to never hack our frame. | |
204 | (substitute-key-definition 'switch-to-buffer | |
205 | 'dframe-switch-buffer-attached-frame | |
206 | map global-map) | |
207 | ||
78b35906 | 208 | (if (featurep 'xemacs) |
7cfc18c4 CY |
209 | (progn |
210 | ;; mouse bindings so we can manipulate the items on each line | |
211 | (define-key map 'button2 'dframe-click) | |
212 | (define-key map '(shift button2) 'dframe-power-click) | |
213 | ;; Info doc fix from Bob Weiner | |
214 | (if (featurep 'infodoc) | |
215 | nil | |
78b35906 | 216 | (define-key map 'button3 'dframe-popup-kludge)) |
7cfc18c4 CY |
217 | ) |
218 | ||
219 | ;; mouse bindings so we can manipulate the items on each line | |
222a6c9b CY |
220 | ;; (define-key map [down-mouse-1] 'dframe-double-click) |
221 | (define-key map [follow-link] 'mouse-face) | |
7cfc18c4 CY |
222 | (define-key map [mouse-2] 'dframe-click) |
223 | ;; This is the power click for new frames, or refreshing a cache | |
224 | (define-key map [S-mouse-2] 'dframe-power-click) | |
225 | ;; This adds a small unecessary visual effect | |
226 | ;;(define-key map [down-mouse-2] 'dframe-quick-mouse) | |
227 | ||
78b35906 | 228 | (define-key map [down-mouse-3] 'dframe-popup-kludge) |
7cfc18c4 CY |
229 | |
230 | ;; This lets the user scroll as if we had a scrollbar... well maybe not | |
231 | (define-key map [mode-line mouse-2] 'dframe-mouse-hscroll) | |
232 | ;; another handy place users might click to get our menu. | |
233 | (define-key map [mode-line down-mouse-1] | |
78b35906 | 234 | 'dframe-popup-kludge) |
7cfc18c4 CY |
235 | |
236 | ;; We can't switch buffers with the buffer mouse menu. Lets hack it. | |
237 | (define-key map [C-down-mouse-1] 'dframe-hack-buffer-menu) | |
238 | ||
239 | ;; Lastly, we want to track the mouse. Play here | |
240 | (define-key map [mouse-movement] 'dframe-track-mouse) | |
241 | )) | |
242 | ||
243 | (defun dframe-live-p (frame) | |
244 | "Return non-nil if FRAME is currently available." | |
245 | (and frame (frame-live-p frame) (frame-visible-p frame))) | |
246 | ||
247 | (defun dframe-frame-mode (arg frame-var cache-var buffer-var frame-name | |
248 | local-mode-fn | |
249 | &optional | |
250 | parameters | |
251 | delete-hook popup-hook create-hook | |
252 | ) | |
253 | "Manage a frame for an application, enabling it when ARG is positive. | |
254 | FRAME-VAR is a variable used to cache the frame being used. | |
255 | This frame is either resurrected, hidden, killed, etc based on | |
256 | the value. | |
257 | CACHE-VAR is a variable used to cache a cached frame. | |
258 | BUFFER-VAR is a variable used to cache the buffer being used in dframe. | |
26e98da9 | 259 | This buffer will have `dframe-frame-mode' run on it. |
7cfc18c4 CY |
260 | FRAME-NAME is the name of the frame to create. |
261 | LOCAL-MODE-FN is the function used to call this one. | |
262 | PARAMETERS are frame parameters to apply to this dframe. | |
263 | DELETE-HOOK are hooks to run when deleting a frame. | |
264 | POPUP-HOOK are hooks to run before showing a frame. | |
265 | CREATE-HOOK are hooks to run after creating a frame." | |
266 | ;; toggle frame on and off. | |
267 | (if (not arg) (if (dframe-live-p (symbol-value frame-var)) | |
268 | (setq arg -1) (setq arg 1))) | |
269 | ;; Make sure the current buffer is set. | |
270 | (set-buffer (symbol-value buffer-var)) | |
271 | ;; turn the frame off on neg number | |
272 | (if (and (numberp arg) (< arg 0)) | |
273 | (progn | |
274 | (run-hooks 'delete-hook) | |
275 | (if (and (symbol-value frame-var) | |
276 | (frame-live-p (symbol-value frame-var))) | |
277 | (progn | |
278 | (set cache-var (symbol-value frame-var)) | |
279 | (make-frame-invisible (symbol-value frame-var)))) | |
280 | (set frame-var nil)) | |
281 | ;; Set this as our currently attached frame | |
282 | (setq dframe-attached-frame (selected-frame)) | |
283 | (run-hooks 'popup-hook) | |
284 | ;; Updated the buffer passed in to contain all the hacks needed | |
285 | ;; to make it work well in a dedicated window. | |
78b35906 | 286 | (with-current-buffer (symbol-value buffer-var) |
7cfc18c4 CY |
287 | ;; Declare this buffer a dedicated frame |
288 | (setq dframe-controlled local-mode-fn) | |
289 | ||
78b35906 SM |
290 | (if (featurep 'xemacs) |
291 | (progn | |
7cfc18c4 CY |
292 | ;; Hack the XEmacs mouse-motion handler |
293 | (set (make-local-variable 'mouse-motion-handler) | |
294 | 'dframe-track-mouse-xemacs) | |
295 | ;; Hack the double click handler | |
296 | (make-local-variable 'mouse-track-click-hook) | |
297 | (add-hook 'mouse-track-click-hook | |
298 | (lambda (event count) | |
299 | (if (/= (event-button event) 1) | |
300 | nil ; Do normal operations. | |
301 | (cond ((eq count 1) | |
302 | (dframe-quick-mouse event)) | |
303 | ((or (eq count 2) | |
304 | (eq count 3)) | |
305 | (dframe-click event) | |
306 | (dframe-quick-mouse event))) | |
307 | ;; Don't do normal operations. | |
308 | t)))) | |
309 | ;; Enable mouse tracking in emacs | |
310 | (if dframe-track-mouse-function | |
e8dc1f8c | 311 | (set (make-local-variable 'track-mouse) t))) ;this could be messy. |
78b35906 | 312 | ;;;; DISABLED: This causes problems for users with multiple frames. |
7cfc18c4 CY |
313 | ;;;; ;; Set this up special just for the passed in buffer |
314 | ;;;; ;; Terminal minibuffer stuff does not require this. | |
315 | ;;;; (if (and (or (assoc 'minibuffer parameters) | |
316 | ;;;; ;; XEmacs plist is not an association list | |
317 | ;;;; (member 'minibuffer parameters)) | |
318 | ;;;; window-system (not (eq window-system 'pc)) | |
319 | ;;;; (null default-minibuffer-frame)) | |
320 | ;;;; (progn | |
321 | ;;;; (make-local-variable 'default-minibuffer-frame) | |
322 | ;;;; (setq default-minibuffer-frame dframe-attached-frame)) | |
323 | ;;;; ) | |
324 | ;; Override `temp-buffer-show-hook' so that help and such | |
325 | ;; put their stuff into a frame other than our own. | |
326 | ;; Correct use of `temp-buffer-show-function': Bob Weiner | |
327 | (if (and (boundp 'temp-buffer-show-hook) | |
328 | (boundp 'temp-buffer-show-function)) | |
329 | (progn (make-local-variable 'temp-buffer-show-hook) | |
330 | (setq temp-buffer-show-hook temp-buffer-show-function))) | |
331 | (make-local-variable 'temp-buffer-show-function) | |
332 | (setq temp-buffer-show-function 'dframe-temp-buffer-show-function) | |
333 | ;; If this buffer is killed, we must make sure that we destroy | |
334 | ;; the frame the dedicated window is in. | |
335 | (add-hook 'kill-buffer-hook `(lambda () | |
336 | (let ((skilling (boundp 'skilling))) | |
337 | (if skilling | |
338 | nil | |
339 | (if dframe-controlled | |
340 | (progn | |
341 | (funcall dframe-controlled -1) | |
342 | (setq ,buffer-var nil) | |
343 | ))))) | |
344 | t t) | |
345 | ) | |
346 | ;; Get the frame to work in | |
347 | (if (frame-live-p (symbol-value cache-var)) | |
348 | (progn | |
349 | (set frame-var (symbol-value cache-var)) | |
350 | (make-frame-visible (symbol-value frame-var)) | |
351 | (select-frame (symbol-value frame-var)) | |
352 | (set-window-dedicated-p (selected-window) nil) | |
353 | (if (not (eq (current-buffer) (symbol-value buffer-var))) | |
354 | (switch-to-buffer (symbol-value buffer-var))) | |
355 | (set-window-dedicated-p (selected-window) t) | |
356 | (raise-frame (symbol-value frame-var)) | |
357 | ) | |
358 | (if (frame-live-p (symbol-value frame-var)) | |
359 | (raise-frame (symbol-value frame-var)) | |
360 | (set frame-var | |
78b35906 | 361 | (if (featurep 'xemacs) |
7cfc18c4 CY |
362 | ;; Only guess height if it is not specified. |
363 | (if (member 'height parameters) | |
364 | (make-frame parameters) | |
365 | (make-frame (nconc (list 'height | |
366 | (dframe-needed-height)) | |
367 | parameters))) | |
368 | (let* ((mh (dframe-frame-parameter dframe-attached-frame | |
369 | 'menu-bar-lines)) | |
370 | (paramsa | |
371 | ;; Only add a guessed height if one is not specified | |
372 | ;; in the input parameters. | |
373 | (if (assoc 'height parameters) | |
374 | parameters | |
375 | (append | |
376 | parameters | |
d7dbc017 | 377 | (list (cons 'height (+ (or mh 0) (frame-height))))))) |
7cfc18c4 CY |
378 | (params |
379 | ;; Only add a guessed width if one is not specified | |
380 | ;; in the input parameters. | |
381 | (if (assoc 'width parameters) | |
382 | paramsa | |
383 | (append | |
384 | paramsa | |
385 | (list (cons 'width (frame-width)))))) | |
386 | (frame | |
5b86d3e4 | 387 | (if (not (eq window-system 'x)) |
7cfc18c4 CY |
388 | (make-frame params) |
389 | (let ((x-pointer-shape x-pointer-top-left-arrow) | |
390 | (x-sensitive-text-pointer-shape | |
391 | x-pointer-hand2)) | |
392 | (make-frame params))))) | |
393 | frame))) | |
394 | ;; Put the buffer into the frame | |
395 | (save-excursion | |
396 | (select-frame (symbol-value frame-var)) | |
397 | (switch-to-buffer (symbol-value buffer-var)) | |
398 | (set-window-dedicated-p (selected-window) t)) | |
399 | ;; Run hooks (like reposition) | |
400 | (run-hooks 'create-hook) | |
401 | ;; Frame name | |
402 | (if (and (or (null window-system) (eq window-system 'pc)) | |
403 | (fboundp 'set-frame-name)) | |
404 | (save-window-excursion | |
405 | (select-frame (symbol-value frame-var)) | |
406 | (set-frame-name frame-name))) | |
407 | ;; On a terminal, raise the frame or the user will | |
408 | ;; be confused. | |
409 | (if (not window-system) | |
410 | (select-frame (symbol-value frame-var))) | |
411 | ))) ) | |
412 | ||
413 | (defun dframe-reposition-frame (new-frame parent-frame location) | |
414 | "Move NEW-FRAME to be relative to PARENT-FRAME. | |
415 | LOCATION can be one of 'random, 'left, 'right, 'left-right, or 'top-bottom." | |
78b35906 | 416 | (if (featurep 'xemacs) |
7cfc18c4 CY |
417 | (dframe-reposition-frame-xemacs new-frame parent-frame location) |
418 | (dframe-reposition-frame-emacs new-frame parent-frame location))) | |
419 | ||
2a41ed35 GM |
420 | ;; Not defined in builds without X, but behind window-system test. |
421 | (declare-function x-display-pixel-width "xfns.c" (&optional terminal)) | |
422 | (declare-function x-display-pixel-height "xfns.c" (&optional terminal)) | |
423 | ||
7cfc18c4 CY |
424 | (defun dframe-reposition-frame-emacs (new-frame parent-frame location) |
425 | "Move NEW-FRAME to be relative to PARENT-FRAME. | |
426 | LOCATION can be one of 'random, 'left-right, 'top-bottom, or | |
ca68aad8 | 427 | a cons cell indicating a position of the form (LEFT . TOP)." |
2a41ed35 GM |
428 | ;; Position dframe. |
429 | ;; Do no positioning if not on a windowing system, | |
430 | (unless (or (not window-system) (eq window-system 'pc)) | |
431 | (let* ((pfx (dframe-frame-parameter parent-frame 'left)) | |
432 | (pfy (dframe-frame-parameter parent-frame 'top)) | |
433 | (pfw (frame-pixel-width parent-frame)) | |
434 | (pfh (frame-pixel-height parent-frame)) | |
435 | (nfw (frame-pixel-width new-frame)) | |
436 | (nfh (frame-pixel-height new-frame)) | |
437 | newleft newtop) | |
7cfc18c4 CY |
438 | ;; Rebuild pfx,pfy to be absolute positions. |
439 | (setq pfx (if (not (consp pfx)) | |
440 | pfx | |
441 | ;; If pfx is a list, that means we grow | |
442 | ;; from a specific edge of the display. | |
443 | ;; Convert that to the distance from the | |
444 | ;; left side of the display. | |
445 | (if (eq (car pfx) '-) | |
446 | ;; A - means distance from the right edge | |
447 | ;; of the display, or DW - pfx - framewidth | |
448 | (- (x-display-pixel-width) (car (cdr pfx)) pfw) | |
449 | (car (cdr pfx)))) | |
450 | pfy (if (not (consp pfy)) | |
451 | pfy | |
452 | ;; If pfy is a list, that means we grow | |
453 | ;; from a specific edge of the display. | |
454 | ;; Convert that to the distance from the | |
455 | ;; left side of the display. | |
456 | (if (eq (car pfy) '-) | |
457 | ;; A - means distance from the right edge | |
458 | ;; of the display, or DW - pfx - framewidth | |
459 | (- (x-display-pixel-height) (car (cdr pfy)) pfh) | |
2a41ed35 | 460 | (car (cdr pfy))))) |
7cfc18c4 CY |
461 | (cond ((eq location 'right) |
462 | (setq newleft (+ pfx pfw 5) | |
463 | newtop pfy)) | |
464 | ((eq location 'left) | |
8a2c27b9 | 465 | (setq newleft (- pfx 10 nfw) |
7cfc18c4 CY |
466 | newtop pfy)) |
467 | ((eq location 'left-right) | |
468 | (setq newleft | |
469 | ;; Decide which side to put it on. 200 is just a | |
470 | ;; buffer for the left edge of the screen. The | |
471 | ;; extra 10 is just dressings for window | |
472 | ;; decorations. | |
473 | (let* ((left-guess (- pfx 10 nfw)) | |
474 | (right-guess (+ pfx pfw 5)) | |
475 | (left-margin left-guess) | |
476 | (right-margin (- (x-display-pixel-width) | |
477 | right-guess 5 nfw))) | |
478 | (cond ((>= left-margin 0) left-guess) | |
479 | ((>= right-margin 0) right-guess) | |
480 | ;; otherwise choose side we overlap less | |
481 | ((> left-margin right-margin) 0) | |
482 | (t (- (x-display-pixel-width) nfw 5)))) | |
2a41ed35 | 483 | newtop pfy)) |
7cfc18c4 CY |
484 | ((eq location 'top-bottom) |
485 | (setq newleft pfx | |
486 | newtop | |
487 | ;; Try and guess if we should be on the top or bottom. | |
488 | (let* ((top-guess (- pfy 15 nfh)) | |
489 | (bottom-guess (+ pfy 5 pfh)) | |
490 | (top-margin top-guess) | |
491 | (bottom-margin (- (x-display-pixel-height) | |
492 | bottom-guess 5 nfh))) | |
493 | (cond ((>= top-margin 0) top-guess) | |
494 | ((>= bottom-margin 0) bottom-guess) | |
495 | ;; Choose a side to overlap the least. | |
496 | ((> top-margin bottom-margin) 0) | |
2a41ed35 | 497 | (t (- (x-display-pixel-height) nfh 5)))))) |
7cfc18c4 CY |
498 | ((consp location) |
499 | (setq newleft (or (car location) 0) | |
500 | newtop (or (cdr location) 0))) | |
501 | (t nil)) | |
502 | (modify-frame-parameters new-frame | |
2a41ed35 GM |
503 | (list (cons 'left newleft) |
504 | (cons 'top newtop)))))) | |
7cfc18c4 CY |
505 | |
506 | (defun dframe-reposition-frame-xemacs (new-frame parent-frame location) | |
507 | "Move NEW-FRAME to be relative to PARENT-FRAME. | |
508 | LOCATION can be one of 'random, 'left-right, or 'top-bottom." | |
509 | ;; Not yet implemented | |
510 | ) | |
511 | ||
512 | ;; XEmacs function only. | |
513 | (defun dframe-needed-height (&optional frame) | |
514 | "The needed height for the tool bar FRAME (in characters)." | |
515 | (or frame (setq frame (selected-frame))) | |
516 | ;; The 1 is the missing modeline/minibuffer | |
517 | (+ 1 (/ (frame-pixel-height frame) | |
518 | ;; This obscure code avoids a byte compiler warning in Emacs. | |
519 | (let ((f 'face-height)) | |
520 | (funcall f 'default frame))))) | |
521 | ||
522 | (defun dframe-detach (frame-var cache-var buffer-var) | |
523 | "Detatch the frame in symbol FRAME-VAR. | |
524 | CACHE-VAR and BUFFER-VAR are symbols as in `dframe-frame-mode'" | |
78b35906 | 525 | (with-current-buffer (symbol-value buffer-var) |
7cfc18c4 CY |
526 | (rename-buffer (buffer-name) t) |
527 | (let ((oldframe (symbol-value frame-var))) | |
528 | (set buffer-var nil) | |
529 | (set frame-var nil) | |
530 | (set cache-var nil) | |
78b35906 | 531 | ;; FIXME: Looks very suspicious. Luckily this function is unused. |
7cfc18c4 CY |
532 | (make-variable-buffer-local frame-var) |
533 | (set frame-var oldframe) | |
534 | ))) | |
535 | ||
536 | ;;; Special frame event proxies | |
537 | ;; | |
538 | (if (boundp 'special-event-map) | |
539 | (progn | |
540 | (define-key special-event-map [make-frame-visible] | |
541 | 'dframe-handle-make-frame-visible) | |
542 | (define-key special-event-map [iconify-frame] | |
543 | 'dframe-handle-iconify-frame) | |
544 | (define-key special-event-map [delete-frame] | |
545 | 'dframe-handle-delete-frame)) | |
546 | ) | |
547 | ||
548 | (defvar dframe-make-frame-visible-function nil | |
549 | "Function used when a dframe controlled frame is de-iconified. | |
550 | The function must take an EVENT.") | |
551 | (defvar dframe-iconify-frame-function nil | |
552 | "Function used when a dframe controlled frame is iconified. | |
553 | The function must take an EVENT.") | |
554 | (defvar dframe-delete-frame-function nil | |
555 | "Function used when a frame attached to a dframe frame is deleted. | |
556 | The function must take an EVENT.") | |
557 | ||
558 | (defun dframe-handle-make-frame-visible (e) | |
559 | "Handle a `make-frame-visible' event. | |
26e98da9 | 560 | Should enable auto-updating if the last state was also enabled. |
7cfc18c4 CY |
561 | Argument E is the event making the frame visible." |
562 | (interactive "e") | |
563 | (let ((f last-event-frame)) | |
564 | (if (and (dframe-attached-frame f) | |
565 | dframe-make-frame-visible-function) | |
566 | (funcall dframe-make-frame-visible-function e) | |
567 | ))) | |
568 | ||
569 | (defun dframe-handle-iconify-frame (e) | |
570 | "Handle a `iconify-frame' event. | |
26e98da9 | 571 | Should disable auto-updating if the last state was also enabled. |
7cfc18c4 CY |
572 | Argument E is the event iconifying the frame." |
573 | (interactive "e") | |
574 | (let ((f last-event-frame)) | |
575 | (if (and (dframe-attached-frame f) | |
576 | dframe-iconify-frame-function e) | |
577 | (funcall dframe-iconify-frame-function) | |
578 | ))) | |
579 | ||
580 | (defun dframe-handle-delete-frame (e) | |
581 | "Handle `delete-frame' event. | |
582 | Argument E is the event deleting the frame." | |
583 | (interactive "e") | |
584 | (let ((fl (frame-list)) | |
585 | (sf (selected-frame))) | |
586 | ;; Loop over all frames. If dframe-delete-frame-function is | |
587 | ;; non-nil, call it. | |
588 | (while fl | |
589 | (select-frame (car fl)) | |
590 | (if dframe-delete-frame-function | |
591 | (funcall dframe-delete-frame-function e)) | |
592 | (setq fl (cdr fl))) | |
593 | (if (frame-live-p sf) | |
594 | (select-frame sf)) | |
595 | (handle-delete-frame e))) | |
596 | ||
597 | ||
598 | ;;; Utilities | |
599 | ;; | |
600 | (defun dframe-get-focus (frame-var activator &optional hook) | |
601 | "Change frame focus to or from a dedicated frame. | |
602 | If the selected frame is not in the symbol FRAME-VAR, then FRAME-VAR | |
603 | frame is selected. If the FRAME-VAR is active, then select the | |
604 | attached frame. If FRAME-VAR is nil, ACTIVATOR is called to | |
605 | created it. HOOK is an optional argument of hooks to run when | |
26e98da9 | 606 | selecting FRAME-VAR." |
7cfc18c4 CY |
607 | (interactive) |
608 | (if (eq (selected-frame) (symbol-value frame-var)) | |
609 | (if (frame-live-p dframe-attached-frame) | |
610 | (dframe-select-attached-frame)) | |
611 | ;; make sure we have a frame | |
612 | (if (not (frame-live-p (symbol-value frame-var))) | |
613 | (funcall activator 1)) | |
614 | ;; go there | |
615 | (select-frame (symbol-value frame-var)) | |
616 | ) | |
617 | (other-frame 0) | |
618 | ;; If updates are off, then refresh the frame (they want it now...) | |
619 | (run-hooks 'hook)) | |
620 | ||
621 | ||
622 | (defun dframe-close-frame () | |
623 | "Close the current frame if it is dedicated." | |
624 | (interactive) | |
625 | (if dframe-controlled | |
626 | (let ((b (current-buffer))) | |
627 | (funcall dframe-controlled -1) | |
628 | (kill-buffer b)))) | |
629 | ||
630 | (defun dframe-current-frame (frame-var desired-major-mode) | |
631 | "Return the existing dedicated frame to use. | |
632 | FRAME-VAR is the variable storing the currently active dedicated frame. | |
633 | If the current frame's buffer uses DESIRED-MAJOR-MODE, then use that frame." | |
634 | (if (not (eq (selected-frame) (symbol-value frame-var))) | |
635 | (if (and (eq major-mode 'desired-major-mode) | |
636 | (get-buffer-window (current-buffer)) | |
637 | (window-frame (get-buffer-window (current-buffer)))) | |
638 | (window-frame (get-buffer-window (current-buffer))) | |
639 | (symbol-value frame-var)) | |
640 | (symbol-value frame-var))) | |
641 | ||
642 | (defun dframe-attached-frame (&optional frame) | |
643 | "Return the attached frame belonging to the dframe controlled frame FRAME. | |
644 | If optional arg FRAME is nil just return `dframe-attached-frame'." | |
645 | (save-excursion | |
646 | (if frame (select-frame frame)) | |
647 | dframe-attached-frame)) | |
648 | ||
649 | (defun dframe-select-attached-frame (&optional frame) | |
26e98da9 JB |
650 | "Switch to the frame the dframe controlled frame FRAME was started from. |
651 | If optional arg FRAME is nil assume the attached frame is already selected | |
652 | and just run the hooks `dframe-after-select-attached-frame-hook'. Return | |
653 | the attached frame." | |
7cfc18c4 CY |
654 | (let ((frame (dframe-attached-frame frame))) |
655 | (if frame (select-frame frame)) | |
656 | (prog1 frame | |
657 | (run-hooks 'dframe-after-select-attached-frame-hook)))) | |
658 | ||
659 | (defmacro dframe-with-attached-buffer (&rest forms) | |
660 | "Execute FORMS in the attached frame's special buffer. | |
661 | Optionally select that frame if necessary." | |
662 | `(save-selected-window | |
663 | ;;(speedbar-set-timer speedbar-update-speed) | |
664 | (dframe-select-attached-frame) | |
665 | ,@forms | |
666 | (dframe-maybee-jump-to-attached-frame))) | |
667 | ||
668 | (defun dframe-maybee-jump-to-attached-frame () | |
669 | "Jump to the attached frame ONLY if this was not a mouse event." | |
670 | (when (or (not (dframe-mouse-event-p last-input-event)) | |
671 | dframe-activity-change-focus-flag) | |
672 | (dframe-select-attached-frame) | |
58eb29e5 | 673 | ;; KB: For what is this - raising the frame?? |
7cfc18c4 CY |
674 | (other-frame 0))) |
675 | ||
676 | ||
677 | (defvar dframe-suppress-message-flag nil | |
678 | "Non-nil means that `dframe-message' should just return a string.") | |
679 | ||
680 | (defun dframe-message (fmt &rest args) | |
681 | "Like message, but for use in a dedicated frame. | |
682 | Argument FMT is the format string, and ARGS are the arguments for message." | |
683 | (save-selected-window | |
684 | (if dframe-suppress-message-flag | |
685 | (apply 'format fmt args) | |
686 | (if dframe-attached-frame | |
687 | ;; KB: Here we do not need calling `dframe-select-attached-frame' | |
688 | (select-frame dframe-attached-frame)) | |
689 | (apply 'message fmt args)))) | |
690 | ||
691 | (defun dframe-y-or-n-p (prompt) | |
692 | "Like `y-or-n-p', but for use in a dedicated frame. | |
693 | Argument PROMPT is the prompt to use." | |
694 | (save-selected-window | |
695 | (if (and ;;default-minibuffer-frame | |
696 | dframe-attached-frame | |
697 | ;;(not (eq default-minibuffer-frame dframe-attached-frame)) | |
698 | ) | |
699 | ;; KB: Here we do not need calling `dframe-select-attached-frame' | |
700 | (select-frame dframe-attached-frame)) | |
701 | (y-or-n-p prompt))) | |
702 | \f | |
703 | ;;; timer management | |
704 | ;; | |
705 | ;; Unlike speedbar with a dedicated set of routines, dframe has one master | |
706 | ;; timer, and all dframe users will use it. At least until I figure out a way | |
707 | ;; around that problem. | |
708 | ;; | |
709 | ;; Advantage 1: Two apps with timer/frames can munge the master list | |
710 | ;; to make sure they occur in order. | |
711 | ;; Advantage 2: If a user hits a key between timer functions, we can | |
712 | ;; interrupt them safely. | |
713 | (defvar dframe-client-functions nil | |
714 | "List of client functions using the dframe timer.") | |
715 | ||
716 | (defun dframe-set-timer (timeout fn &optional null-on-error) | |
717 | "Apply a timer with TIMEOUT, to call FN, or remove a timer if TIMEOUT is nil. | |
718 | TIMEOUT is the number of seconds until the dframe controled program | |
719 | timer is called again. When TIMEOUT is nil, turn off all timeouts. | |
720 | This function must be called from the buffer belonging to the program | |
721 | who requested the timer. | |
722 | If NULL-ON-ERROR is a symbol, set it to nil if we cannot create a timer." | |
723 | ;; First, fix up our list of client functions | |
724 | (if timeout | |
725 | (add-to-list 'dframe-client-functions fn) | |
726 | (setq dframe-client-functions (delete fn dframe-client-functions))) | |
727 | ;; Now decided what to do about the timout. | |
728 | (if (or | |
729 | ;; We have a timer, restart the timer with the new time. | |
730 | timeout | |
731 | ;; We have a timer, an off is requested, and no client | |
732 | ;; functions are left, shut er down. | |
733 | (and dframe-timer (not timeout) dframe-client-functions)) | |
734 | ;; Only call the low level function if we are changing the state. | |
735 | (dframe-set-timer-internal timeout null-on-error))) | |
736 | ||
737 | (defun dframe-set-timer-internal (timeout &optional null-on-error) | |
5b86d3e4 GM |
738 | "Apply a timer with TIMEOUT to call the dframe timer manager." |
739 | (when dframe-timer | |
740 | (if (featurep 'xemacs) | |
741 | (delete-itimer dframe-timer) | |
742 | (cancel-timer dframe-timer)) | |
743 | (setq dframe-timer nil)) | |
744 | (when timeout | |
745 | (setq dframe-timer | |
746 | (if (featurep 'xemacs) | |
747 | (start-itimer "dframe" 'dframe-timer-fn | |
748 | timeout timeout t) | |
749 | (run-with-idle-timer timeout t 'dframe-timer-fn))))) | |
7cfc18c4 CY |
750 | |
751 | (defun dframe-timer-fn () | |
752 | "Called due to the dframe timer. | |
753 | Evaluates all cached timer functions in sequence." | |
754 | (let ((l dframe-client-functions)) | |
755 | (while (and l (sit-for 0)) | |
756 | (condition-case er | |
757 | (funcall (car l)) | |
758 | (error (message "DFRAME TIMER ERROR: %S" er))) | |
759 | (setq l (cdr l))))) | |
760 | ||
761 | ;;; Menu hacking for mouse-3 | |
762 | ;; | |
763 | (defconst dframe-pass-event-to-popup-mode-menu | |
764 | (let (max-args) | |
765 | (and (fboundp 'popup-mode-menu) | |
766 | (fboundp 'function-max-args) | |
767 | (setq max-args (function-max-args 'popup-mode-menu)) | |
768 | (not (zerop max-args)))) | |
ca68aad8 | 769 | "The EVENT arg to `popup-mode-menu' was introduced in XEmacs 21.4.0.") |
7cfc18c4 CY |
770 | |
771 | ;; In XEmacs, we make popup menus work on the item over mouse (as | |
772 | ;; opposed to where the point happens to be.) We attain this by | |
773 | ;; temporarily moving the point to that place. | |
774 | ;; Hrvoje Niksic <hniksic@srce.hr> | |
78b35906 SM |
775 | (defalias 'dframe-popup-kludge |
776 | (if (featurep 'xemacs) | |
777 | (lambda (event) ; XEmacs. | |
778 | "Pop up a menu related to the clicked on item. | |
7cfc18c4 | 779 | Must be bound to EVENT." |
78b35906 SM |
780 | (interactive "e") |
781 | (save-excursion | |
782 | (if dframe-pass-event-to-popup-mode-menu | |
783 | (popup-mode-menu event) | |
784 | (goto-char (event-closest-point event)) | |
785 | (beginning-of-line) | |
786 | (forward-char (min 5 (- (save-excursion (end-of-line) (point)) | |
787 | (save-excursion (beginning-of-line) (point))))) | |
788 | (popup-mode-menu)) | |
789 | ;; Wait for menu to bail out. `popup-mode-menu' (and other popup | |
790 | ;; menu functions) return immediately. | |
791 | (let (new) | |
792 | (while (not (misc-user-event-p (setq new (next-event)))) | |
793 | (dispatch-event new)) | |
794 | (dispatch-event new)))) | |
795 | ||
796 | (lambda (e) ; Emacs. | |
797 | "Pop up a menu related to the clicked on item. | |
7cfc18c4 | 798 | Must be bound to event E." |
78b35906 SM |
799 | (interactive "e") |
800 | (save-excursion | |
801 | (mouse-set-point e) | |
802 | ;; This gets the cursor where the user can see it. | |
803 | (if (not (bolp)) (forward-char -1)) | |
804 | (sit-for 0) | |
5b86d3e4 GM |
805 | (if (fboundp 'mouse-menu-major-mode-map) |
806 | (popup-menu (mouse-menu-major-mode-map) e) | |
807 | (with-no-warnings ; don't warn about obsolete fallback | |
808 | (mouse-major-mode-menu e nil))))))) | |
7cfc18c4 CY |
809 | |
810 | ;;; Interactive user functions for the mouse | |
811 | ;; | |
78b35906 SM |
812 | (defalias 'dframe-mouse-event-p |
813 | (if (featurep 'xemacs) | |
814 | 'button-press-event-p | |
815 | (lambda (event) | |
816 | "Return t if the event is a mouse related event." | |
817 | (if (and (listp event) | |
818 | (member (event-basic-type event) | |
819 | '(mouse-1 mouse-2 mouse-3))) | |
820 | t | |
821 | nil)))) | |
7cfc18c4 CY |
822 | |
823 | (defun dframe-track-mouse (event) | |
824 | "For motion EVENT, display info about the current line." | |
825 | (interactive "e") | |
826 | (when (and dframe-track-mouse-function | |
78b35906 | 827 | (or (featurep 'xemacs) ;; XEmacs always safe? |
7cfc18c4 CY |
828 | (windowp (posn-window (event-end event))) ; Sometimes |
829 | ; there is no window to jump into. | |
830 | )) | |
58eb29e5 | 831 | |
7cfc18c4 CY |
832 | (funcall dframe-track-mouse-function event))) |
833 | ||
834 | (defun dframe-track-mouse-xemacs (event) | |
835 | "For motion EVENT, display info about the current line." | |
836 | (if (functionp (default-value 'mouse-motion-handler)) | |
837 | (funcall (default-value 'mouse-motion-handler) event)) | |
838 | (if dframe-track-mouse-function | |
839 | (funcall dframe-track-mouse-function event))) | |
840 | ||
841 | (defun dframe-help-echo (window &optional buffer position) | |
842 | "Display help based context. | |
843 | The context is in WINDOW, viewing BUFFER, at POSITION. | |
844 | BUFFER and POSITION are optional because XEmacs doesn't use them." | |
845 | (when (and (not dframe-track-mouse-function) | |
846 | (bufferp buffer) | |
847 | dframe-help-echo-function) | |
848 | (let ((dframe-suppress-message-flag t)) | |
849 | (with-current-buffer buffer | |
222a6c9b CY |
850 | (save-excursion |
851 | (if position (goto-char position)) | |
852 | (funcall dframe-help-echo-function)))))) | |
7cfc18c4 CY |
853 | |
854 | (defun dframe-mouse-set-point (e) | |
ca68aad8 | 855 | "Set point based on event E. |
7cfc18c4 | 856 | Handles clicking on images in XEmacs." |
78b35906 SM |
857 | (if (and (featurep 'xemacs) |
858 | (save-excursion | |
859 | (save-window-excursion | |
860 | (mouse-set-point e) | |
861 | (event-over-glyph-p e)))) | |
7cfc18c4 | 862 | ;; We are in XEmacs, and clicked on a picture |
7cfc18c4 CY |
863 | (let ((ext (event-glyph-extent e))) |
864 | ;; This position is back inside the extent where the | |
865 | ;; junk we pushed into the property list lives. | |
866 | (if (extent-end-position ext) | |
867 | (goto-char (1- (extent-end-position ext))) | |
868 | (mouse-set-point e))) | |
7cfc18c4 CY |
869 | ;; We are not in XEmacs, OR we didn't click on a picture. |
870 | (mouse-set-point e))) | |
871 | ||
872 | (defun dframe-quick-mouse (e) | |
873 | "Since mouse events are strange, this will keep the mouse nicely positioned. | |
874 | This should be bound to mouse event E." | |
875 | (interactive "e") | |
876 | (dframe-mouse-set-point e) | |
877 | (if dframe-mouse-position-function | |
878 | (funcall dframe-mouse-position-function))) | |
879 | ||
880 | (defun dframe-power-click (e) | |
26e98da9 | 881 | "Activate any dframe mouse click as a power click. |
7cfc18c4 CY |
882 | A power click will dispose of cached data (if available) or bring a buffer |
883 | up into a different window. | |
884 | This should be bound to mouse event E." | |
885 | (interactive "e") | |
886 | (let ((dframe-power-click t)) | |
887 | (select-frame last-event-frame) | |
888 | (dframe-click e))) | |
889 | ||
890 | (defun dframe-click (e) | |
891 | "Call our clients click function on a user click. | |
892 | E is the event causing the click." | |
893 | (interactive "e") | |
894 | (dframe-mouse-set-point e) | |
895 | (when dframe-mouse-click-function | |
896 | ;; On the off chance of buffer switch, or something incorrectly | |
897 | ;; configured. | |
898 | (funcall dframe-mouse-click-function e))) | |
899 | ||
900 | (defun dframe-double-click (e) | |
901 | "Activate the registered click function on a double click. | |
902 | This must be bound to a mouse event. | |
903 | This should be bound to mouse event E." | |
904 | (interactive "e") | |
905 | ;; Emacs only. XEmacs handles this via `mouse-track-click-hook'. | |
906 | (cond ((eq (car e) 'down-mouse-1) | |
907 | (dframe-mouse-set-point e)) | |
908 | ((eq (car e) 'mouse-1) | |
909 | (dframe-quick-mouse e)) | |
910 | ((or (eq (car e) 'double-down-mouse-1) | |
911 | (eq (car e) 'triple-down-mouse-1)) | |
912 | (dframe-click e)))) | |
913 | ||
914 | ;;; Hacks of normal things. | |
915 | ;; | |
916 | ;; Some normal things that happen in one of these dedicated frames | |
917 | ;; must be handled specially, so that our dedicated frame isn't | |
918 | ;; messed up. | |
919 | (defun dframe-temp-buffer-show-function (buffer) | |
920 | "Placed in the variable `temp-buffer-show-function' in dedicated frames. | |
921 | If a user requests help using \\[help-command] <Key> the temp BUFFER will be | |
922 | redirected into a window on the attached frame." | |
923 | (if dframe-attached-frame (dframe-select-attached-frame)) | |
924 | (pop-to-buffer buffer nil) | |
925 | (other-window -1) | |
926 | ;; Fix for using this hook on some platforms: Bob Weiner | |
78b35906 | 927 | (cond ((not (featurep 'xemacs)) |
7cfc18c4 CY |
928 | (run-hooks 'temp-buffer-show-hook)) |
929 | ((fboundp 'run-hook-with-args) | |
930 | (run-hook-with-args 'temp-buffer-show-hook buffer)) | |
931 | ((and (boundp 'temp-buffer-show-hook) | |
932 | (listp temp-buffer-show-hook)) | |
933 | (mapcar (function (lambda (hook) (funcall hook buffer))) | |
934 | temp-buffer-show-hook)))) | |
935 | ||
936 | (defun dframe-hack-buffer-menu (e) | |
937 | "Control mouse 1 is buffer menu. | |
938 | This hack overrides it so that the right thing happens in the main | |
939 | Emacs frame, not in the dedicated frame. | |
940 | Argument E is the event causing this activity." | |
941 | (interactive "e") | |
78b35906 SM |
942 | (let ((fn (lookup-key global-map (if (featurep 'xemacs) |
943 | '(control button1) | |
7cfc18c4 CY |
944 | [C-down-mouse-1]))) |
945 | (oldbuff (current-buffer)) | |
946 | (newbuff nil)) | |
947 | (unwind-protect | |
948 | (save-excursion | |
949 | (set-window-dedicated-p (selected-window) nil) | |
950 | (call-interactively fn) | |
951 | (setq newbuff (current-buffer))) | |
952 | (switch-to-buffer oldbuff) | |
953 | (set-window-dedicated-p (selected-window) t)) | |
954 | (if (not (eq newbuff oldbuff)) | |
955 | (dframe-with-attached-buffer | |
956 | (switch-to-buffer newbuff))))) | |
957 | ||
958 | (defun dframe-switch-buffer-attached-frame (&optional buffer) | |
959 | "Switch to BUFFER in the attached frame, and raise that frame. | |
960 | This overrides the default behavior of `switch-to-buffer' which is | |
961 | broken because of the dedicated frame." | |
962 | (interactive) | |
963 | ;; Assume we are in the dedicated frame. | |
964 | (other-frame 1) | |
965 | ;; Now switch buffers | |
966 | (if buffer | |
967 | (switch-to-buffer buffer) | |
968 | (call-interactively 'switch-to-buffer nil nil))) | |
969 | ||
970 | ;; XEmacs: this can be implemented using modeline keymaps, but there | |
971 | ;; is no use, as we have horizontal scrollbar (as the docstring | |
972 | ;; hints.) | |
973 | (defun dframe-mouse-hscroll (e) | |
974 | "Read a mouse event E from the mode line, and horizontally scroll. | |
975 | If the mouse is being clicked on the far left, or far right of the | |
976 | mode-line. This is only useful for non-XEmacs." | |
977 | (interactive "e") | |
978 | (let* ((x-point (car (nth 2 (car (cdr e))))) | |
979 | (pixels-per-10-col (/ (* 10 (frame-pixel-width)) | |
980 | (frame-width))) | |
981 | (click-col (1+ (/ (* 10 x-point) pixels-per-10-col))) | |
982 | ) | |
983 | (cond ((< click-col 3) | |
984 | (scroll-left 2)) | |
985 | ((> click-col (- (window-width) 5)) | |
986 | (scroll-right 2)) | |
987 | (t (dframe-message | |
988 | "Click on the edge of the modeline to scroll left/right"))) | |
989 | )) | |
990 | ||
991 | (provide 'dframe) | |
992 | ||
dceb5300 | 993 | ;; arch-tag: df9b91b6-e85e-4a76-a02e-b3cb5b686bd4 |
7cfc18c4 | 994 | ;;; dframe.el ends here |