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1 | ;;; mh-speed.el --- Speedbar interface for MH-E. |
2 | ||
924df208 | 3 | ;; Copyright (C) 2002, 2003 Free Software Foundation, Inc. |
bdcfe844 | 4 | |
c3d9274a | 5 | ;; Author: Satyaki Das <satyaki@theforce.stanford.edu> |
bdcfe844 BW |
6 | ;; Maintainer: Bill Wohler <wohler@newt.com> |
7 | ;; Keywords: mail | |
8 | ;; See: mh-e.el | |
9 | ||
10 | ;; This file is part of GNU Emacs. | |
11 | ||
12 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
13 | ;; it under the terms of the GNU General Public License as published by | |
14 | ;; the Free Software Foundation; either version 2, or (at your option) | |
15 | ;; any later version. | |
16 | ||
17 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
18 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | ;; GNU General Public License for more details. | |
21 | ||
22 | ;; You should have received a copy of the GNU General Public License | |
23 | ;; along with GNU Emacs; see the file COPYING. If not, write to the | |
24 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
25 | ;; Boston, MA 02111-1307, USA. | |
26 | ||
27 | ;;; Commentary: | |
28 | ;; Future versions should only use flists. | |
29 | ||
30 | ;; Speedbar support for MH-E package. | |
31 | ||
32 | ;;; Change Log: | |
33 | ||
bdcfe844 BW |
34 | ;;; Code: |
35 | ||
36 | ;; Requires | |
37 | (require 'cl) | |
bdcfe844 BW |
38 | (require 'mh-e) |
39 | (require 'speedbar) | |
40 | ||
bdcfe844 BW |
41 | ;; Global variables |
42 | (defvar mh-speed-refresh-flag nil) | |
43 | (defvar mh-speed-last-selected-folder nil) | |
44 | (defvar mh-speed-folder-map (make-hash-table :test #'equal)) | |
bdcfe844 BW |
45 | (defvar mh-speed-flists-cache (make-hash-table :test #'equal)) |
46 | (defvar mh-speed-flists-process nil) | |
47 | (defvar mh-speed-flists-timer nil) | |
48 | (defvar mh-speed-partial-line "") | |
49 | ||
50 | ;; Add our stealth update function | |
51 | (unless (member 'mh-speed-stealth-update | |
52 | (cdr (assoc "files" speedbar-stealthy-function-list))) | |
53 | ;; Is changing constant lists in elisp safe? | |
54 | (setq speedbar-stealthy-function-list | |
55 | (copy-tree speedbar-stealthy-function-list)) | |
56 | (push 'mh-speed-stealth-update | |
57 | (cdr (assoc "files" speedbar-stealthy-function-list)))) | |
58 | ||
59 | ;; Functions called by speedbar to initialize display... | |
c3d9274a | 60 | ;;;###mh-autoload |
bdcfe844 BW |
61 | (defun mh-folder-speedbar-buttons (buffer) |
62 | "Interface function to create MH-E speedbar buffer. | |
63 | BUFFER is the MH-E buffer for which the speedbar buffer is to be created." | |
64 | (unless (get-text-property (point-min) 'mh-level) | |
65 | (erase-buffer) | |
66 | (clrhash mh-speed-folder-map) | |
67 | (speedbar-make-tag-line 'bracket ?+ 'mh-speed-toggle nil " " 'ignore nil | |
68 | 'mh-speedbar-folder-face 0) | |
69 | (forward-line -1) | |
70 | (setf (gethash nil mh-speed-folder-map) | |
924df208 BW |
71 | (set-marker (or (gethash nil mh-speed-folder-map) (make-marker)) |
72 | (1+ (line-beginning-position)))) | |
bdcfe844 BW |
73 | (add-text-properties |
74 | (line-beginning-position) (1+ (line-beginning-position)) | |
75 | `(mh-folder nil mh-expanded nil mh-children-p t mh-level 0)) | |
76 | (mh-speed-stealth-update t) | |
77 | (when mh-speed-run-flists-flag | |
78 | (mh-speed-flists nil)))) | |
79 | ||
c3d9274a | 80 | ;;;###mh-autoload |
bdcfe844 | 81 | (defalias 'mh-show-speedbar-buttons 'mh-folder-speedbar-buttons) |
c3d9274a | 82 | ;;;###mh-autoload |
bdcfe844 BW |
83 | (defalias 'mh-letter-speedbar-buttons 'mh-folder-speedbar-buttons) |
84 | ||
85 | ;; Keymaps for speedbar... | |
86 | (defvar mh-folder-speedbar-key-map (speedbar-make-specialized-keymap) | |
87 | "Specialized speedbar keymap for MH-E buffers.") | |
88 | (gnus-define-keys mh-folder-speedbar-key-map | |
c3d9274a BW |
89 | "+" mh-speed-expand-folder |
90 | "-" mh-speed-contract-folder | |
91 | "\r" mh-speed-view | |
92 | "f" mh-speed-flists | |
93 | "i" mh-speed-invalidate-map) | |
bdcfe844 BW |
94 | |
95 | (defvar mh-show-speedbar-key-map mh-folder-speedbar-key-map) | |
bdcfe844 BW |
96 | (defvar mh-letter-speedbar-key-map mh-folder-speedbar-key-map) |
97 | ||
98 | ;; Menus for speedbar... | |
99 | (defvar mh-folder-speedbar-menu-items | |
100 | '(["Visit Folder" mh-speed-view | |
101 | (save-excursion | |
102 | (set-buffer speedbar-buffer) | |
103 | (get-text-property (line-beginning-position) 'mh-folder))] | |
104 | ["Expand nested folders" mh-speed-expand-folder | |
105 | (and (get-text-property (line-beginning-position) 'mh-children-p) | |
106 | (not (get-text-property (line-beginning-position) 'mh-expanded)))] | |
107 | ["Contract nested folders" mh-speed-contract-folder | |
108 | (and (get-text-property (line-beginning-position) 'mh-children-p) | |
109 | (get-text-property (line-beginning-position) 'mh-expanded))] | |
110 | ["Run Flists" mh-speed-flists t] | |
111 | ["Invalidate cached folders" mh-speed-invalidate-map t]) | |
112 | "Extra menu items for speedbar.") | |
113 | ||
114 | (defvar mh-show-speedbar-menu-items mh-folder-speedbar-menu-items) | |
bdcfe844 BW |
115 | (defvar mh-letter-speedbar-menu-items mh-folder-speedbar-menu-items) |
116 | ||
117 | (defmacro mh-speed-select-attached-frame () | |
118 | "Compatibility macro to handle speedbar versions 0.11a and 0.14beta4." | |
119 | (cond ((fboundp 'dframe-select-attached-frame) | |
120 | '(dframe-select-attached-frame speedbar-frame)) | |
121 | ((boundp 'speedbar-attached-frame) | |
122 | '(select-frame speedbar-attached-frame)) | |
123 | (t (error "Installed speedbar version not supported by MH-E")))) | |
124 | ||
125 | (defun mh-speed-update-current-folder (force) | |
126 | "Update speedbar highlighting of the current folder. | |
127 | The function tries to be smart so that work done is minimized. The currently | |
128 | highlighted folder is cached and no highlighting happens unless it changes. | |
129 | Also highlighting is suspended while the speedbar frame is selected. | |
130 | Otherwise you get the disconcerting behavior of folders popping open on their | |
131 | own when you are trying to navigate around in the speedbar buffer. | |
132 | ||
133 | The update is always carried out if FORCE is non-nil." | |
134 | (let* ((lastf (selected-frame)) | |
c3d9274a | 135 | (newcf (save-excursion |
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136 | (mh-speed-select-attached-frame) |
137 | (prog1 (mh-speed-extract-folder-name (buffer-name)) | |
138 | (select-frame lastf)))) | |
c3d9274a BW |
139 | (lastb (current-buffer)) |
140 | (case-fold-search t)) | |
bdcfe844 BW |
141 | (when (or force |
142 | (and mh-speed-refresh-flag (not (eq lastf speedbar-frame))) | |
143 | (and (stringp newcf) | |
144 | (equal (substring newcf 0 1) "+") | |
145 | (not (equal newcf mh-speed-last-selected-folder)))) | |
146 | (setq mh-speed-refresh-flag nil) | |
147 | (select-frame speedbar-frame) | |
148 | (set-buffer speedbar-buffer) | |
149 | ||
150 | ;; Remove highlight from previous match... | |
151 | (mh-speed-highlight mh-speed-last-selected-folder | |
152 | 'mh-speedbar-folder-face) | |
153 | ||
154 | ;; If we found a match highlight it... | |
155 | (when (mh-speed-goto-folder newcf) | |
156 | (mh-speed-highlight newcf 'mh-speedbar-selected-folder-face)) | |
157 | ||
158 | (setq mh-speed-last-selected-folder newcf) | |
159 | (speedbar-position-cursor-on-line) | |
160 | (set-window-point (frame-first-window speedbar-frame) (point)) | |
161 | (set-buffer lastb) | |
162 | (select-frame lastf)) | |
163 | (when (eq lastf speedbar-frame) | |
164 | (setq mh-speed-refresh-flag t)))) | |
165 | ||
166 | (defun mh-speed-normal-face (face) | |
167 | "Return normal face for given FACE." | |
168 | (cond ((eq face 'mh-speedbar-folder-with-unseen-messages-face) | |
169 | 'mh-speedbar-folder-face) | |
170 | ((eq face 'mh-speedbar-selected-folder-with-unseen-messages-face) | |
171 | 'mh-speedbar-selected-folder-face) | |
172 | (t face))) | |
173 | ||
174 | (defun mh-speed-bold-face (face) | |
175 | "Return bold face for given FACE." | |
176 | (cond ((eq face 'mh-speedbar-folder-face) | |
177 | 'mh-speedbar-folder-with-unseen-messages-face) | |
178 | ((eq face 'mh-speedbar-selected-folder-face) | |
179 | 'mh-speedbar-selected-folder-with-unseen-messages-face) | |
180 | (t face))) | |
181 | ||
182 | (defun mh-speed-highlight (folder face) | |
183 | "Set FOLDER to FACE." | |
184 | (save-excursion | |
185 | (speedbar-with-writable | |
186 | (goto-char (gethash folder mh-speed-folder-map (point))) | |
187 | (beginning-of-line) | |
188 | (if (re-search-forward "([1-9][0-9]*/[0-9]+)" (line-end-position) t) | |
189 | (setq face (mh-speed-bold-face face)) | |
190 | (setq face (mh-speed-normal-face face))) | |
191 | (beginning-of-line) | |
192 | (when (re-search-forward "\\[.\\] " (line-end-position) t) | |
193 | (put-text-property (point) (line-end-position) 'face face))))) | |
194 | ||
195 | (defun mh-speed-stealth-update (&optional force) | |
196 | "Do stealth update. | |
197 | With non-nil FORCE, the update is always carried out." | |
198 | (cond ((save-excursion (set-buffer speedbar-buffer) | |
199 | (get-text-property (point-min) 'mh-level)) | |
200 | ;; Execute this hook and *don't* run anything else | |
201 | (mh-speed-update-current-folder force) | |
202 | nil) | |
203 | ;; Otherwise on to your regular programming | |
204 | (t t))) | |
205 | ||
206 | (defun mh-speed-goto-folder (folder) | |
207 | "Move point to line containing FOLDER. | |
208 | The function will expand out parent folders of FOLDER if needed." | |
209 | (let ((prefix folder) | |
210 | (suffix-list ()) | |
211 | (last-slash t)) | |
212 | (while (and (not (gethash prefix mh-speed-folder-map)) last-slash) | |
c3d9274a | 213 | (setq last-slash (mh-search-from-end ?/ prefix)) |
bdcfe844 BW |
214 | (when (integerp last-slash) |
215 | (push (substring prefix (1+ last-slash)) suffix-list) | |
216 | (setq prefix (substring prefix 0 last-slash)))) | |
217 | (let ((prefix-position (gethash prefix mh-speed-folder-map))) | |
218 | (if prefix-position | |
219 | (goto-char prefix-position) | |
220 | (goto-char (point-min)) | |
221 | (mh-speed-toggle) | |
222 | (unless (get-text-property (point) 'mh-expanded) | |
223 | (mh-speed-toggle)) | |
224 | (goto-char (gethash prefix mh-speed-folder-map)))) | |
225 | (while suffix-list | |
226 | ;; We always need atleast one toggle. We need two if the directory list | |
227 | ;; is stale since a folder was added. | |
228 | (when (equal prefix (get-text-property (line-beginning-position) | |
229 | 'mh-folder)) | |
230 | (mh-speed-toggle) | |
231 | (unless (get-text-property (point) 'mh-expanded) | |
232 | (mh-speed-toggle))) | |
233 | (setq prefix (format "%s/%s" prefix (pop suffix-list))) | |
234 | (goto-char (gethash prefix mh-speed-folder-map (point)))) | |
235 | (beginning-of-line) | |
236 | (equal folder (get-text-property (point) 'mh-folder)))) | |
237 | ||
238 | (defun mh-speed-extract-folder-name (buffer) | |
239 | "Given an MH-E BUFFER find the folder that should be highlighted. | |
240 | Do the right thing for the different kinds of buffers that MH-E uses." | |
241 | (save-excursion | |
242 | (set-buffer buffer) | |
243 | (cond ((eq major-mode 'mh-folder-mode) | |
244 | mh-current-folder) | |
245 | ((eq major-mode 'mh-show-mode) | |
246 | (set-buffer mh-show-folder-buffer) | |
247 | mh-current-folder) | |
c3d9274a | 248 | ((eq major-mode 'mh-letter-mode) |
bdcfe844 BW |
249 | (when (string-match mh-user-path buffer-file-name) |
250 | (let* ((rel-path (substring buffer-file-name (match-end 0))) | |
c3d9274a | 251 | (directory-end (mh-search-from-end ?/ rel-path))) |
bdcfe844 BW |
252 | (when directory-end |
253 | (format "+%s" (substring rel-path 0 directory-end))))))))) | |
254 | ||
255 | (defun mh-speed-add-buttons (folder level) | |
256 | "Add speedbar button for FOLDER which is at indented by LEVEL amount." | |
3d7ca223 | 257 | (let ((folder-list (mh-sub-folders folder))) |
bdcfe844 BW |
258 | (mapc |
259 | (lambda (f) | |
260 | (let* ((folder-name (format "%s%s%s" (or folder "+") | |
261 | (if folder "/" "") (car f))) | |
262 | (counts (gethash folder-name mh-speed-flists-cache))) | |
263 | (speedbar-with-writable | |
264 | (speedbar-make-tag-line | |
265 | 'bracket (if (cdr f) ?+ ? ) | |
266 | 'mh-speed-toggle nil | |
267 | (format "%s%s" | |
268 | (car f) | |
269 | (if counts | |
270 | (format " (%s/%s)" (car counts) (cdr counts)) | |
271 | "")) | |
272 | 'mh-speed-view nil | |
273 | (if (and counts (> (car counts) 0)) | |
274 | 'mh-speedbar-folder-with-unseen-messages-face | |
275 | 'mh-speedbar-folder-face) | |
276 | level) | |
277 | (save-excursion | |
278 | (forward-line -1) | |
279 | (setf (gethash folder-name mh-speed-folder-map) | |
924df208 BW |
280 | (set-marker (or (gethash folder-name mh-speed-folder-map) |
281 | (make-marker)) | |
282 | (1+ (line-beginning-position)))) | |
bdcfe844 BW |
283 | (add-text-properties |
284 | (line-beginning-position) (1+ (line-beginning-position)) | |
285 | `(mh-folder ,folder-name | |
c3d9274a BW |
286 | mh-expanded nil |
287 | mh-children-p ,(not (not (cdr f))) | |
288 | ,@(if counts `(mh-count | |
289 | (,(car counts) . ,(cdr counts))) ()) | |
290 | mh-level ,level)))))) | |
bdcfe844 BW |
291 | folder-list))) |
292 | ||
c3d9274a | 293 | ;;;###mh-autoload |
bdcfe844 BW |
294 | (defun mh-speed-toggle (&rest args) |
295 | "Toggle the display of child folders. | |
296 | The otional ARGS are ignored and there for compatibilty with speedbar." | |
297 | (interactive) | |
298 | (declare (ignore args)) | |
299 | (beginning-of-line) | |
300 | (let ((parent (get-text-property (point) 'mh-folder)) | |
301 | (kids-p (get-text-property (point) 'mh-children-p)) | |
302 | (expanded (get-text-property (point) 'mh-expanded)) | |
303 | (level (get-text-property (point) 'mh-level)) | |
304 | (point (point)) | |
305 | start-region) | |
306 | (speedbar-with-writable | |
307 | (cond ((not kids-p) nil) | |
308 | (expanded | |
309 | (forward-line) | |
310 | (setq start-region (point)) | |
311 | (while (and (get-text-property (point) 'mh-level) | |
312 | (> (get-text-property (point) 'mh-level) level)) | |
924df208 BW |
313 | (let ((folder (get-text-property (point) 'mh-folder))) |
314 | (when (gethash folder mh-speed-folder-map) | |
315 | (set-marker (gethash folder mh-speed-folder-map) nil) | |
316 | (remhash folder mh-speed-folder-map))) | |
bdcfe844 BW |
317 | (forward-line)) |
318 | (delete-region start-region (point)) | |
319 | (forward-line -1) | |
320 | (speedbar-change-expand-button-char ?+) | |
321 | (add-text-properties | |
322 | (line-beginning-position) (1+ (line-beginning-position)) | |
323 | '(mh-expanded nil))) | |
324 | (t | |
325 | (forward-line) | |
326 | (mh-speed-add-buttons parent (1+ level)) | |
327 | (goto-char point) | |
328 | (speedbar-change-expand-button-char ?-) | |
329 | (add-text-properties | |
330 | (line-beginning-position) (1+ (line-beginning-position)) | |
331 | `(mh-expanded t))))))) | |
332 | ||
333 | (defalias 'mh-speed-expand-folder 'mh-speed-toggle) | |
334 | (defalias 'mh-speed-contract-folder 'mh-speed-toggle) | |
335 | ||
c3d9274a | 336 | ;;;###mh-autoload |
bdcfe844 BW |
337 | (defun mh-speed-view (&rest args) |
338 | "View folder on current line. | |
339 | Optional ARGS are ignored." | |
340 | (interactive) | |
341 | (declare (ignore args)) | |
342 | (let* ((folder (get-text-property (line-beginning-position) 'mh-folder)) | |
c3d9274a | 343 | (range (and (stringp folder) (mh-read-msg-range folder)))) |
bdcfe844 BW |
344 | (when (stringp folder) |
345 | (speedbar-with-attached-buffer | |
346 | (mh-visit-folder folder range) | |
347 | (delete-other-windows))))) | |
348 | ||
3d7ca223 | 349 | (defvar mh-speed-current-folder nil) |
924df208 | 350 | (defvar mh-speed-flists-folder nil) |
bdcfe844 | 351 | |
c3d9274a | 352 | ;;;###mh-autoload |
924df208 | 353 | (defun mh-speed-flists (force &optional folder) |
bdcfe844 | 354 | "Execute flists -recurse and update message counts. |
924df208 BW |
355 | If FORCE is non-nil the timer is reset. If FOLDER is non-nil then flists is run |
356 | only for that one folder." | |
bdcfe844 BW |
357 | (interactive (list t)) |
358 | (when force | |
924df208 BW |
359 | (when mh-speed-flists-timer |
360 | (cancel-timer mh-speed-flists-timer) | |
361 | (setq mh-speed-flists-timer nil)) | |
bdcfe844 BW |
362 | (when (and (processp mh-speed-flists-process) |
363 | (not (eq (process-status mh-speed-flists-process) 'exit))) | |
924df208 | 364 | (set-process-filter mh-speed-flists-process t) |
bdcfe844 | 365 | (kill-process mh-speed-flists-process) |
924df208 | 366 | (setq mh-speed-partial-line "") |
bdcfe844 | 367 | (setq mh-speed-flists-process nil))) |
924df208 | 368 | (setq mh-speed-flists-folder folder) |
bdcfe844 BW |
369 | (unless mh-speed-flists-timer |
370 | (setq mh-speed-flists-timer | |
371 | (run-at-time | |
924df208 | 372 | nil (and mh-speed-run-flists-flag mh-speed-flists-interval) |
bdcfe844 BW |
373 | (lambda () |
374 | (unless (and (processp mh-speed-flists-process) | |
375 | (not (eq (process-status mh-speed-flists-process) | |
376 | 'exit))) | |
3d7ca223 BW |
377 | (setq mh-speed-current-folder |
378 | (concat | |
379 | (with-temp-buffer | |
380 | (call-process (expand-file-name "folder" mh-progs) | |
381 | nil '(t nil) nil "-fast") | |
382 | (buffer-substring (point-min) (1- (point-max)))) | |
383 | "+")) | |
bdcfe844 | 384 | (setq mh-speed-flists-process |
3d7ca223 BW |
385 | (start-process "*flists*" nil |
386 | (expand-file-name "flists" mh-progs) | |
924df208 BW |
387 | (or mh-speed-flists-folder "-recurse") |
388 | (if mh-speed-flists-folder "-noall" "-all") | |
c3d9274a | 389 | "-sequence" (symbol-name mh-unseen-seq))) |
924df208 BW |
390 | ;; Run flists on all folders the next time around... |
391 | (setq mh-speed-flists-folder nil) | |
bdcfe844 BW |
392 | (set-process-filter mh-speed-flists-process |
393 | 'mh-speed-parse-flists-output))))))) | |
394 | ||
395 | ;; Copied from mh-make-folder-list-filter... | |
396 | (defun mh-speed-parse-flists-output (process output) | |
397 | "Parse the incremental results from flists. | |
398 | PROCESS is the flists process and OUTPUT is the results that must be handled | |
399 | next." | |
400 | (let ((prevailing-match-data (match-data)) | |
401 | (position 0) | |
402 | line-end line folder unseen total) | |
403 | (unwind-protect | |
404 | (while (setq line-end (string-match "\n" output position)) | |
405 | (setq line (format "%s%s" | |
406 | mh-speed-partial-line | |
407 | (substring output position line-end)) | |
408 | mh-speed-partial-line "") | |
c3d9274a | 409 | (multiple-value-setq (folder unseen total) |
3d7ca223 | 410 | (mh-parse-flist-output-line line mh-speed-current-folder)) |
924df208 BW |
411 | (when (and folder unseen total |
412 | (let ((old-pair (gethash folder mh-speed-flists-cache))) | |
413 | (or (not (equal (car old-pair) unseen)) | |
414 | (not (equal (cdr old-pair) total))))) | |
c3d9274a BW |
415 | (setf (gethash folder mh-speed-flists-cache) (cons unseen total)) |
416 | (save-excursion | |
417 | (when (buffer-live-p (get-buffer speedbar-buffer)) | |
418 | (set-buffer speedbar-buffer) | |
419 | (speedbar-with-writable | |
420 | (when (get-text-property (point-min) 'mh-level) | |
421 | (let ((pos (gethash folder mh-speed-folder-map)) | |
422 | face) | |
423 | (when pos | |
424 | (goto-char pos) | |
425 | (goto-char (line-beginning-position)) | |
426 | (cond | |
427 | ((null (get-text-property (point) 'mh-count)) | |
428 | (goto-char (line-end-position)) | |
429 | (setq face (get-text-property (1- (point)) 'face)) | |
430 | (insert (format " (%s/%s)" unseen total)) | |
431 | (mh-speed-highlight 'unknown face) | |
432 | (goto-char (line-beginning-position)) | |
433 | (add-text-properties (point) (1+ (point)) | |
434 | `(mh-count (,unseen . ,total)))) | |
435 | ((not (equal (get-text-property (point) 'mh-count) | |
436 | (cons unseen total))) | |
437 | (goto-char (line-end-position)) | |
438 | (setq face (get-text-property (1- (point)) 'face)) | |
439 | (re-search-backward " " (line-beginning-position) t) | |
440 | (delete-region (point) (line-end-position)) | |
441 | (insert (format " (%s/%s)" unseen total)) | |
442 | (mh-speed-highlight 'unknown face) | |
443 | (goto-char (line-beginning-position)) | |
444 | (add-text-properties | |
445 | (point) (1+ (point)) | |
446 | `(mh-count (,unseen . ,total)))))))))))) | |
bdcfe844 BW |
447 | (setq position (1+ line-end))) |
448 | (set-match-data prevailing-match-data)) | |
c3d9274a | 449 | (setq mh-speed-partial-line (substring output position)))) |
bdcfe844 | 450 | |
c3d9274a | 451 | ;;;###mh-autoload |
bdcfe844 BW |
452 | (defun mh-speed-invalidate-map (folder) |
453 | "Remove FOLDER from various optimization caches." | |
454 | (interactive (list "")) | |
455 | (save-excursion | |
456 | (set-buffer speedbar-buffer) | |
457 | (let* ((speedbar-update-flag nil) | |
c3d9274a | 458 | (last-slash (mh-search-from-end ?/ folder)) |
bdcfe844 BW |
459 | (parent (if last-slash (substring folder 0 last-slash) nil)) |
460 | (parent-position (gethash parent mh-speed-folder-map)) | |
461 | (parent-change nil)) | |
bdcfe844 | 462 | (when parent-position |
3d7ca223 | 463 | (let ((parent-kids (mh-sub-folders parent))) |
bdcfe844 BW |
464 | (cond ((null parent-kids) |
465 | (setq parent-change ?+)) | |
466 | ((and (null (cdr parent-kids)) | |
467 | (equal (if last-slash | |
468 | (substring folder (1+ last-slash)) | |
469 | (substring folder 1)) | |
470 | (caar parent-kids))) | |
471 | (setq parent-change ? )))) | |
472 | (goto-char parent-position) | |
473 | (when (equal (get-text-property (line-beginning-position) 'mh-folder) | |
474 | parent) | |
475 | (when (get-text-property (line-beginning-position) 'mh-expanded) | |
476 | (mh-speed-toggle)) | |
477 | (when parent-change | |
478 | (speedbar-with-writable | |
479 | (mh-speedbar-change-expand-button-char parent-change) | |
480 | (add-text-properties | |
481 | (line-beginning-position) (1+ (line-beginning-position)) | |
482 | `(mh-children-p ,(equal parent-change ?+))))) | |
483 | (mh-speed-highlight mh-speed-last-selected-folder | |
484 | 'mh-speedbar-folder-face) | |
485 | (setq mh-speed-last-selected-folder nil) | |
486 | (setq mh-speed-refresh-flag t))) | |
487 | (when (equal folder "") | |
3d7ca223 | 488 | (clrhash mh-sub-folders-cache))))) |
bdcfe844 | 489 | |
c3d9274a | 490 | ;;;###mh-autoload |
bdcfe844 BW |
491 | (defun mh-speed-add-folder (folder) |
492 | "Add FOLDER since it is being created. | |
493 | The function invalidates the latest ancestor that is present." | |
494 | (save-excursion | |
495 | (set-buffer speedbar-buffer) | |
496 | (let ((speedbar-update-flag nil) | |
c3d9274a | 497 | (last-slash (mh-search-from-end ?/ folder)) |
bdcfe844 BW |
498 | (ancestor folder) |
499 | (ancestor-pos nil)) | |
500 | (block while-loop | |
501 | (while last-slash | |
502 | (setq ancestor (substring ancestor 0 last-slash)) | |
503 | (setq ancestor-pos (gethash ancestor mh-speed-folder-map)) | |
504 | (when ancestor-pos | |
505 | (return-from while-loop)) | |
c3d9274a | 506 | (setq last-slash (mh-search-from-end ?/ ancestor)))) |
bdcfe844 BW |
507 | (unless ancestor-pos (setq ancestor nil)) |
508 | (goto-char (or ancestor-pos (gethash nil mh-speed-folder-map))) | |
509 | (speedbar-with-writable | |
510 | (mh-speedbar-change-expand-button-char ?+) | |
511 | (add-text-properties | |
512 | (line-beginning-position) (1+ (line-beginning-position)) | |
513 | `(mh-children-p t))) | |
514 | (when (get-text-property (line-beginning-position) 'mh-expanded) | |
515 | (mh-speed-toggle)) | |
bdcfe844 BW |
516 | (setq mh-speed-refresh-flag t)))) |
517 | ||
518 | ;; Make it slightly more general to allow for [ ] buttons to be changed to | |
519 | ;; [+]. | |
520 | (defun mh-speedbar-change-expand-button-char (char) | |
521 | "Change the expansion button character to CHAR for the current line." | |
522 | (save-excursion | |
523 | (beginning-of-line) | |
524 | (if (re-search-forward "\\[.\\]" (line-end-position) t) | |
c3d9274a | 525 | (speedbar-with-writable |
bdcfe844 | 526 | (backward-char 2) |
c3d9274a BW |
527 | (delete-char 1) |
528 | (insert-char char 1 t) | |
529 | (put-text-property (point) (1- (point)) 'invisible nil) | |
530 | ;; make sure we fix the image on the text here. | |
924df208 BW |
531 | (mh-funcall-if-exists |
532 | speedbar-insert-image-button-maybe (- (point) 2) 3))))) | |
bdcfe844 BW |
533 | |
534 | (provide 'mh-speed) | |
535 | ||
536 | ;;; Local Variables: | |
c3d9274a | 537 | ;;; indent-tabs-mode: nil |
bdcfe844 BW |
538 | ;;; sentence-end-double-space: nil |
539 | ;;; End: | |
540 | ||
6b61353c | 541 | ;;; arch-tag: d38ddcd4-3c00-4e37-99bf-8b89dda7b32c |
bdcfe844 | 542 | ;;; mh-speed.el ends here |