Mercurial > hg > xemacs-beta
annotate lisp/dialog.el @ 5333:aa2705c83c24
Correct a misplaced parenthesis in #'make-dialog-box, thank you Mats!
2011-01-10 Aidan Kehoe <kehoea@parhasard.net>
* dialog.el (make-dialog-box): Correct a misplaced parenthesis
here, thank you Mats Lidell in 87zkr9gqrh.fsf@mail.contactor.se !
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Mon, 10 Jan 2011 17:55:06 +0000 |
| parents | fbafdc1bb4d2 |
| children | 7ebbe334061e |
| rev | line source |
|---|---|
| 209 | 1 ;;; dialog.el --- Dialog-box support for XEmacs |
| 2 | |
| 3 ;; Copyright (C) 1991-4, 1997 Free Software Foundation, Inc. | |
| 844 | 4 ;; Copyright (C) 2000, 2002 Ben Wing. |
| 209 | 5 |
| 6 ;; Maintainer: XEmacs Development Team | |
| 7 ;; Keywords: extensions, internal, dumped | |
| 8 | |
| 9 ;; This file is part of XEmacs. | |
| 10 | |
| 11 ;; XEmacs is free software; you can redistribute it and/or modify it | |
| 12 ;; under the terms of the GNU General Public License as published by | |
| 13 ;; the Free Software Foundation; either version 2, or (at your option) | |
| 14 ;; any later version. | |
| 15 | |
| 16 ;; XEmacs is distributed in the hope that it will be useful, but | |
| 17 ;; WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 19 ;; General Public License for more details. | |
| 20 | |
| 21 ;; You should have received a copy of the GNU General Public License | |
| 22 ;; along with XEmacs; see the file COPYING. If not, write to the | |
| 23 ;; Free Software Foundation, 59 Temple Place - Suite 330, | |
| 24 ;; Boston, MA 02111-1307, USA. | |
| 25 | |
| 26 ;;; Synched up with: Not in FSF. | |
| 27 | |
| 844 | 28 ;;; Authorship: Mostly written or rewritten by Ben Wing; some old old stuff |
| 29 ;;; that underlies some current code was written by JWZ. | |
| 30 | |
| 209 | 31 ;;; Commentary: |
| 32 | |
| 33 ;; This file is dumped with XEmacs (when dialog boxes are compiled in). | |
| 34 | |
| 442 | 35 ;; Dialog boxes are non-modal at the C level, but made modal at the |
| 36 ;; Lisp level via hacks in functions such as yes-or-no-p-dialog-box | |
| 37 ;; below. Perhaps there should be truly modal dialog boxes | |
| 38 ;; implemented at the C level for safety. All code using dialog boxes | |
| 39 ;; should be careful to assume that the environment, for example the | |
| 40 ;; current buffer, might be completely different after returning from | |
| 41 ;; yes-or-no-p-dialog-box, but such code is difficult to write and test. | |
| 42 | |
| 209 | 43 ;;; Code: |
| 44 (defun yes-or-no-p-dialog-box (prompt) | |
| 442 | 45 "Ask user a yes-or-no question with a popup dialog box. |
| 46 Return t if the answer is \"yes\". | |
| 209 | 47 Takes one argument, which is the string to display to ask the question." |
| 442 | 48 (save-selected-frame |
| 49 (make-dialog-box 'question | |
| 50 :question prompt | |
| 51 :modal t | |
| 52 :buttons '(["Yes" (dialog-box-finish t)] | |
| 53 ["No" (dialog-box-finish nil)] | |
| 54 nil | |
| 55 ["Cancel" (dialog-box-cancel)])))) | |
| 209 | 56 |
| 442 | 57 ;; FSF has a similar function `x-popup-dialog'. |
| 209 | 58 (defun get-dialog-box-response (position contents) |
| 59 "Pop up a dialog box and return user's selection. | |
| 60 POSITION specifies which frame to use. | |
| 61 This is normally an event or a window or frame. | |
| 62 If POSITION is t or nil, it means to use the frame the mouse is on. | |
| 63 The dialog box appears in the middle of the specified frame. | |
| 64 | |
| 65 CONTENTS specifies the alternatives to display in the dialog box. | |
| 66 It is a list of the form (TITLE ITEM1 ITEM2...). | |
| 67 Each ITEM is a cons cell (STRING . VALUE). | |
| 68 The return value is VALUE from the chosen item. | |
| 69 | |
| 70 An ITEM may also be just a string--that makes a nonselectable item. | |
| 71 An ITEM may also be nil--that means to put all preceding items | |
| 72 on the left of the dialog box and all following items on the right." | |
| 73 (cond | |
| 74 ((eventp position) | |
| 75 (select-frame (event-frame position))) | |
| 76 ((framep position) | |
| 77 (select-frame position)) | |
| 78 ((windowp position) | |
| 79 (select-window position))) | |
| 442 | 80 (make-dialog-box 'question |
| 81 :question (car contents) | |
| 82 :modal t | |
| 83 :buttons | |
| 84 (mapcar #'(lambda (x) | |
| 85 (cond | |
| 86 ((null x) | |
| 87 nil) | |
| 88 ((stringp x) | |
| 89 ;;this will never get selected | |
| 90 `[,x 'ignore nil]) | |
| 91 (t | |
| 92 `[,(car x) (dialog-box-finish ',(cdr x)) t]))) | |
| 93 (cdr contents)))) | |
| 209 | 94 |
| 95 (defun message-box (fmt &rest args) | |
| 96 "Display a message, in a dialog box if possible. | |
| 97 If the selected device has no dialog-box support, use the echo area. | |
| 98 The arguments are the same as to `format'. | |
| 99 | |
| 100 If the only argument is nil, clear any existing message; let the | |
| 101 minibuffer contents show." | |
| 102 (if (and (null fmt) (null args)) | |
| 103 (progn | |
| 104 (clear-message nil) | |
| 105 nil) | |
| 106 (let ((str (apply 'format fmt args))) | |
| 107 (if (device-on-window-system-p) | |
| 442 | 108 (get-dialog-box-response nil (list str (cons "%_OK" t))) |
| 209 | 109 (display-message 'message str)) |
| 110 str))) | |
| 111 | |
| 112 (defun message-or-box (fmt &rest args) | |
| 442 | 113 "Display a message in a dialog box or in the echo area. |
| 114 If this command was invoked with the mouse, use a dialog box. | |
| 209 | 115 Otherwise, use the echo area. |
| 116 The arguments are the same as to `format'. | |
| 117 | |
| 118 If the only argument is nil, clear any existing message; let the | |
| 119 minibuffer contents show." | |
| 120 (if (should-use-dialog-box-p) | |
| 121 (apply 'message-box fmt args) | |
| 122 (apply 'message fmt args))) | |
| 123 | |
|
5330
fbafdc1bb4d2
Use defun*, not cl-parsing-keywords, #'make-dialog-box, #'display-completion-list
Aidan Kehoe <kehoea@parhasard.net>
parents:
2730
diff
changeset
|
124 (defun* make-dialog-box (type &rest rest &key (title "XEmacs") |
|
fbafdc1bb4d2
Use defun*, not cl-parsing-keywords, #'make-dialog-box, #'display-completion-list
Aidan Kehoe <kehoea@parhasard.net>
parents:
2730
diff
changeset
|
125 (parent (selected-frame)) modal properties autosize |
|
fbafdc1bb4d2
Use defun*, not cl-parsing-keywords, #'make-dialog-box, #'display-completion-list
Aidan Kehoe <kehoea@parhasard.net>
parents:
2730
diff
changeset
|
126 spec &allow-other-keys) |
| 442 | 127 "Pop up a dialog box. |
| 128 TYPE is a symbol, the type of dialog box. Remaining arguments are | |
| 129 keyword-value pairs, specifying the particular characteristics of the | |
| 130 dialog box. The allowed keywords are particular to each type, but | |
| 131 some standard keywords are common to many types: | |
| 132 | |
| 133 :title | |
| 134 The title of the dialog box's window. | |
| 135 | |
| 136 :modal | |
| 137 If true, indicates that XEmacs will wait until the user is \"done\" | |
| 138 with the dialog box (usually, this means that a response has been | |
| 139 given). Typically, the response is returned. NOTE: Some dialog | |
| 140 boxes are always modal. If the dialog box is modal, `make-dialog-box' | |
| 141 returns immediately. The return value will be either nil or a | |
| 142 dialog box handle of some sort, e.g. a frame for type `general'. | |
| 143 | |
| 144 --------------------------------------------------------------------------- | |
| 145 | |
| 146 Recognized types are | |
| 147 | |
| 148 general | |
| 149 A dialog box consisting of an XEmacs glyph, typically a `layout' | |
| 150 widget specifying a dialog box arrangement. This is the most | |
| 151 general and powerful dialog box type, but requires more work than | |
| 152 the other types below. | |
| 153 | |
| 154 question | |
| 155 A simple dialog box that displays a question and contains one or | |
| 156 more user-defined buttons to specify possible responses. (This is | |
| 157 compatible with the old built-in dialog boxes formerly specified | |
| 158 using `popup-dialog-box'.) | |
| 159 | |
| 160 file | |
| 161 A file dialog box, of the type typically used in the window system | |
| 162 XEmacs is running on. | |
| 163 | |
| 164 color | |
| 165 A color picker. | |
| 166 | |
| 167 find | |
| 168 A find dialog box. | |
| 169 | |
| 170 font | |
| 171 A font chooser. | |
| 172 | |
| 173 print | |
| 174 A dialog box used when printing (e.g. number of pages, printer). | |
| 175 | |
| 176 page-setup | |
| 177 A dialog box for setting page options (e.g. margins) for printing. | |
| 178 | |
| 179 replace | |
| 180 A find/replace dialog box. | |
| 181 | |
| 182 mswindows-message | |
| 183 An MS Windows-specific standard dialog box type similar to `question'. | |
| 184 | |
| 185 --------------------------------------------------------------------------- | |
| 186 | |
| 187 For type `general': | |
| 188 | |
| 189 This type creates a frame and puts the specified widget layout in it. | |
| 190 \(Currently this is done by eliminating all areas but the gutter and placing | |
| 191 the layout there; but this is an implementation detail and may change.) | |
| 192 | |
| 193 The keywords allowed for `general' are | |
| 194 | |
| 195 :spec | |
| 196 The widget spec -- anything that can be passed to `make-glyph'. | |
| 197 :title | |
| 198 The title of the frame. | |
| 199 :parent | |
| 200 The frame is made a child of this frame (defaults to the selected frame). | |
| 201 :properties | |
| 202 Additional properties of the frame, as well as `dialog-frame-plist'. | |
| 863 | 203 :autosize |
| 204 If t the frame is sized to exactly fit the widgets given by :spec. | |
| 442 | 205 |
| 206 --------------------------------------------------------------------------- | |
| 207 | |
| 208 For type `question': | |
| 209 | |
| 210 The keywords allowed are | |
| 211 | |
| 212 :modal | |
| 213 t or nil. When t, the dialog box callback should exit the dialog box | |
| 214 using the functions `dialog-box-finish' or `dialog-box-cancel'. | |
| 215 :title | |
| 216 The title of the frame. | |
| 217 :question | |
| 218 A string, the question. | |
| 219 :buttons | |
| 220 A list, describing the buttons below the question. Each of these is a | |
| 221 vector, the syntax of which is essentially the same as that of popup menu | |
| 222 items. They may have any of the following forms: | |
| 223 | |
| 224 [ \"name\" callback <active-p> ] | |
| 225 [ \"name\" callback <active-p> \"suffix\" ] | |
| 226 [ \"name\" callback :<keyword> <value> :<keyword> <value> ... ] | |
| 227 | |
| 228 The name is the string to display on the button; it is filtered through the | |
| 229 resource database, so it is possible for resources to override what string | |
| 230 is actually displayed. | |
| 231 | |
| 232 Accelerators can be indicated in the string by putting the sequence | |
| 233 \"%_\" before the character corresponding to the key that will invoke | |
| 234 the button. Uppercase and lowercase accelerators are equivalent. The | |
| 235 sequence \"%%\" is also special, and is translated into a single %. | |
| 236 | |
| 237 If the `callback' of a button is a symbol, then it must name a command. | |
| 238 It will be invoked with `call-interactively'. If it is a list, then it is | |
| 239 evaluated with `eval'. | |
| 240 | |
| 241 One (and only one) of the buttons may be `nil'. This marker means that all | |
| 242 following buttons should be flushright instead of flushleft. | |
| 243 | |
| 244 Though the keyword/value syntax is supported for dialog boxes just as in | |
| 245 popup menus, the only keyword which is both meaningful and fully implemented | |
| 246 for dialog box buttons is `:active'. | |
| 247 | |
| 248 --------------------------------------------------------------------------- | |
| 249 | |
| 250 For type `file': | |
| 251 | |
| 252 The keywords allowed are | |
| 253 | |
| 254 :initial-filename | |
| 255 The initial filename to be placed in the dialog box (defaults to nothing). | |
| 256 :initial-directory | |
| 257 The initial directory to be selected in the dialog box (defaults to the | |
| 258 current buffer's `default-directory). | |
| 259 :filter-list | |
| 260 A list of (filter-desc filter ...) | |
| 261 :title | |
| 262 The title of the dialog box (defaults to \"Open\"). | |
| 263 :allow-multi-select t or nil | |
| 264 :create-prompt-on-nonexistent t or nil | |
| 265 :overwrite-prompt t or nil | |
| 266 :file-must-exist t or nil | |
| 267 :no-network-button t or nil | |
| 268 :no-read-only-return t or nil | |
| 269 | |
| 270 --------------------------------------------------------------------------- | |
| 271 | |
| 673 | 272 For type `directory': |
| 273 | |
| 274 The keywords allowed are | |
| 275 | |
| 276 :initial-directory | |
| 277 The initial directory to be selected in the dialog box (defaults to the | |
| 278 current buffer's `default-directory). | |
| 279 :title | |
| 280 The title of the dialog box (defaults to \"Open\"). | |
| 281 | |
| 282 --------------------------------------------------------------------------- | |
| 283 | |
| 442 | 284 For type `print': |
| 285 | |
| 286 This invokes the Windows standard Print dialog. | |
| 287 This dialog is usually invoked when the user selects the Print command. | |
| 288 After the user presses OK, the program should start actual printout. | |
| 289 | |
| 290 The keywords allowed are | |
| 291 | |
| 292 :device | |
| 293 An 'msprinter device. | |
| 294 :print-settings | |
| 295 A printer settings object. | |
| 510 | 296 :allow-selection |
| 297 t or nil -- whether the \"Selection\" button is enabled (defaults to nil). | |
| 298 :allow-pages | |
| 299 t or nil -- whether the \"Pages\" button and associated edit controls | |
| 300 are enabled (defaults to t). | |
| 301 :selected-page-button | |
| 302 `all', `selection', or `pages' -- which page button is initially | |
| 303 selected. | |
| 442 | 304 |
| 510 | 305 Exactly one of :device and :print-settings must be given. |
| 442 | 306 |
| 307 The function brings up the Print dialog, where the user can | |
| 506 | 308 select a different printer and/or change printer options. Connection |
| 442 | 309 name can change as a result of selecting a different printer device. If |
| 506 | 310 a device is specified, then changes are stored into the settings object |
| 442 | 311 currently selected into that printer. If a settings object is supplied, |
| 629 | 312 then changes are recorded into it, and, it is selected into a |
| 442 | 313 printer, then changes are propagated to that printer |
| 314 too. | |
| 315 | |
| 316 Return value is nil if the user has canceled the dialog. Otherwise, it | |
| 317 is a new plist, with the following properties: | |
| 510 | 318 name Printer device name, even if unchanged by the user. |
| 319 from-page First page to print, 1-based. Returned if | |
| 320 `selected-page-button' is `pages'. | |
| 321 user, then this value is not included in the plist. | |
| 322 to-page Last page to print, inclusive, 1-based. Returned if | |
| 323 `selected-page-button' is `pages'. | |
| 324 copies Number of copies to print. Always returned. | |
| 325 selected-page-button Which page button was selected (`all', `selection', | |
| 326 or `pages'). | |
| 442 | 327 |
| 328 The DEVICE is destroyed and an error is signaled in case of | |
| 329 initialization problem with the new printer. | |
| 330 | |
| 510 | 331 See also the `page-setup' dialog box type. |
| 442 | 332 |
| 333 --------------------------------------------------------------------------- | |
| 334 | |
| 335 For type `page-setup': | |
| 336 | |
| 337 This invokes the Windows standard Page Setup dialog. | |
| 506 | 338 This dialog is usually invoked in response to the Page Setup command, |
| 339 and used to choose such parameters as page orientation, print margins | |
| 340 etc. Note that this dialog contains the \"Printer\" button, which | |
| 341 invokes the Printer Setup dialog so that the user can update the | |
| 342 printer options or even select a different printer as well. | |
| 442 | 343 |
| 344 The keywords allowed are | |
| 345 | |
| 346 :device | |
| 347 An 'msprinter device. | |
| 348 :print-settings | |
| 349 A printer settings object. | |
| 350 :properties | |
| 351 A plist of job properties. | |
| 352 | |
| 353 Exactly one of these keywords must be given. | |
| 354 | |
| 355 The function brings up the Page Setup dialog, where the user | |
| 356 can select a different printer and/or change printer options. | |
| 357 Connection name can change as a result of selecting a different printer | |
| 506 | 358 device. If a device is specified, then changes are stored into the |
| 442 | 359 settings object currently selected into that printer. If a settings |
| 629 | 360 object is supplied, then changes are recorded into it, and, it is |
| 442 | 361 selected into a printer, then changes are propagated to that printer |
| 362 too. | |
| 363 | |
| 364 :properties specifies a plist of job properties; | |
| 365 see `default-msprinter-frame-plist' for the complete list. The plist | |
| 366 is used to initialize the dialog. | |
| 367 | |
| 368 Return value is nil if the user has canceled the dialog. Otherwise, | |
| 369 it is a new plist, containing the new list of properties. | |
| 370 | |
| 506 | 371 NOTE: The margin properties (returned by this function) are *NOT* stored |
| 372 into the print-settings or device object. | |
| 373 | |
| 442 | 374 The DEVICE is destroyed and an error is signaled in case of |
| 375 initialization problem with the new printer. | |
| 376 | |
| 510 | 377 See also the `print' dialog box type. |
| 442 | 378 |
| 379 --------------------------------------------------------------------------- | |
| 380 | |
| 381 For type `mswindows-message': | |
| 382 | |
| 383 The keywords allowed are | |
| 384 | |
| 385 :title | |
| 386 The title of the dialog box. | |
| 387 :message | |
| 388 The string to display. | |
| 389 :flags | |
| 390 A symbol or list of symbols: | |
| 391 | |
| 392 -- To specify the buttons in the message box: | |
| 393 | |
| 394 abortretryignore | |
| 395 The message box contains three push buttons: Abort, Retry, and Ignore. | |
| 396 ok | |
| 397 The message box contains one push button: OK. This is the default. | |
| 398 okcancel | |
| 399 The message box contains two push buttons: OK and Cancel. | |
| 400 retrycancel | |
| 401 The message box contains two push buttons: Retry and Cancel. | |
| 402 yesno | |
| 403 The message box contains two push buttons: Yes and No. | |
| 404 yesnocancel | |
| 405 The message box contains three push buttons: Yes, No, and Cancel. | |
| 406 | |
| 407 | |
| 408 -- To display an icon in the message box: | |
| 409 | |
| 410 iconexclamation, iconwarning | |
| 411 An exclamation-point icon appears in the message box. | |
| 412 iconinformation, iconasterisk | |
| 413 An icon consisting of a lowercase letter i in a circle appears in | |
| 414 the message box. | |
| 415 iconquestion | |
| 416 A question-mark icon appears in the message box. | |
| 417 iconstop, iconerror, iconhand | |
| 418 A stop-sign icon appears in the message box. | |
| 419 | |
| 420 | |
| 421 -- To indicate the default button: | |
| 422 | |
| 423 defbutton1 | |
| 424 The first button is the default button. This is the default. | |
| 425 defbutton2 | |
| 426 The second button is the default button. | |
| 427 defbutton3 | |
| 428 The third button is the default button. | |
| 429 defbutton4 | |
| 430 The fourth button is the default button. | |
| 431 | |
| 432 | |
| 433 -- To indicate the modality of the dialog box: | |
| 434 | |
| 435 applmodal | |
| 436 The user must respond to the message box before continuing work in | |
| 437 the window identified by the hWnd parameter. However, the user can | |
| 438 move to the windows of other applications and work in those windows. | |
| 439 Depending on the hierarchy of windows in the application, the user | |
| 440 may be able to move to other windows within the application. All | |
| 441 child windows of the parent of the message box are automatically | |
| 442 disabled, but popup windows are not. This is the default. | |
| 443 systemmodal | |
| 444 Same as applmodal except that the message box has the WS_EX_TOPMOST | |
| 445 style. Use system-modal message boxes to notify the user of serious, | |
| 446 potentially damaging errors that require immediate attention (for | |
| 447 example, running out of memory). This flag has no effect on the | |
| 448 user's ability to interact with windows other than those associated | |
| 449 with hWnd. | |
| 450 taskmodal | |
| 451 Same as applmodal except that all the top-level windows belonging to | |
| 452 the current task are disabled if the hWnd parameter is NULL. Use | |
| 453 this flag when the calling application or library does not have a | |
| 454 window handle available but still needs to prevent input to other | |
| 455 windows in the current application without suspending other | |
| 456 applications. | |
| 457 | |
| 458 | |
| 459 In addition, you can specify the following flags: | |
| 460 | |
| 461 default-desktop-only | |
| 462 The desktop currently receiving input must be a default desktop; | |
| 463 otherwise, the function fails. A default desktop is one an | |
| 464 application runs on after the user has logged on. | |
| 465 help | |
| 466 Adds a Help button to the message box. Choosing the Help button or | |
| 467 pressing F1 generates a Help event. | |
| 468 right | |
| 469 The text is right-justified. | |
| 470 rtlreading | |
| 471 Displays message and caption text using right-to-left reading order | |
| 472 on Hebrew and Arabic systems. | |
| 473 setforeground | |
| 474 The message box becomes the foreground window. Internally, Windows | |
| 475 calls the SetForegroundWindow function for the message box. | |
| 476 topmost | |
| 477 The message box is created with the WS_EX_TOPMOST window style. | |
| 478 service-notification | |
| 479 Windows NT only: The caller is a service notifying the user of an | |
| 480 event. The function displays a message box on the current active | |
| 481 desktop, even if there is no user logged on to the computer. If | |
| 482 this flag is set, the hWnd parameter must be NULL. This is so the | |
| 483 message box can appear on a desktop other than the desktop | |
| 484 corresponding to the hWnd. | |
| 485 | |
| 486 | |
| 487 The return value is one of the following menu-item values returned by | |
| 488 the dialog box: | |
| 489 | |
| 490 abort | |
| 491 Abort button was selected. | |
| 492 cancel | |
| 493 Cancel button was selected. | |
| 494 ignore | |
| 495 Ignore button was selected. | |
| 496 no | |
| 497 No button was selected. | |
| 498 ok | |
| 499 OK button was selected. | |
| 500 retry | |
| 501 Retry button was selected. | |
| 502 yes | |
| 503 Yes button was selected. | |
| 504 | |
| 505 If a message box has a Cancel button, the function returns the | |
| 506 `cancel' value if either the ESC key is pressed or the Cancel button | |
| 507 is selected. If the message box has no Cancel button, pressing ESC has | |
| 508 no effect." | |
| 509 (flet ((dialog-box-modal-loop (thunk) | |
| 510 (let* ((frames (frame-list)) | |
| 511 (result | |
| 512 ;; ok, this is extremely tricky. normally a modal | |
| 513 ;; dialog will pop itself down using (dialog-box-finish) | |
| 514 ;; or (dialog-box-cancel), which throws back to this | |
| 515 ;; catch. but question dialog boxes pop down themselves | |
| 516 ;; regardless, so a badly written question dialog box | |
| 517 ;; that does not use (dialog-box-finish) could seriously | |
| 518 ;; wedge us. furthermore, we disable all other frames | |
| 519 ;; in order to implement modality; we need to restore | |
| 520 ;; them before the dialog box is destroyed, because | |
| 521 ;; otherwise windows at least will notice that no top- | |
| 522 ;; level window can have the focus and will shift the | |
| 523 ;; focus to a different app, raising it and obscuring us. | |
| 524 ;; so we create `delete-dialog-box-hook', which is | |
| 525 ;; called right *before* the dialog box gets destroyed. | |
| 526 ;; here, we put a hook on it, and when it's our dialog | |
| 527 ;; box and not someone else's that's being destroyed, | |
| 528 ;; we reenable all the frames and remove the hook. | |
| 529 ;; BUT ... we still have to deal with exiting the | |
| 530 ;; modal loop in case it doesn't happen before us. | |
| 531 ;; we can't do this until after the callbacks for this | |
| 532 ;; dialog box get executed, and that doesn't happen until | |
| 533 ;; after the dialog box is destroyed. so to keep things | |
| 534 ;; synchronous, we enqueue an eval event, which goes into | |
| 535 ;; the same queue as the misc-user events encapsulating | |
| 536 ;; the dialog callbacks and will go after it (because | |
| 537 ;; destroying the dialog box happens after processing | |
| 538 ;; its selection). if the dialog boxes are written | |
| 539 ;; properly, we don't see this eval event, because we've | |
| 540 ;; already exited our modal loop. (Thus, we make sure the | |
| 541 ;; function given in this eval event is actually defined | |
| 542 ;; and does nothing.) If we do see it, though, we know | |
| 543 ;; that we encountered a badly written dialog box and | |
| 544 ;; need to exit now. Currently we just return nil, but | |
| 545 ;; maybe we should signal an error or issue a warning. | |
| 546 (catch 'internal-dialog-box-finish | |
| 547 (let ((id (eval thunk)) | |
| 548 (sym (gensym))) | |
| 549 (fset sym | |
| 550 `(lambda (did) | |
| 551 (when (eq ',id did) | |
| 552 (mapc 'enable-frame ',frames) | |
| 553 (enqueue-eval-event | |
| 554 'internal-make-dialog-box-exit did) | |
| 555 (remove-hook 'delete-dialog-box-hook | |
| 556 ',sym)))) | |
| 1066 | 557 (if (framep id) |
| 558 (add-hook 'delete-frame-hook sym) | |
| 559 (add-hook 'delete-dialog-box-hook sym)) | |
| 442 | 560 (mapc 'disable-frame frames) |
| 561 (block nil | |
| 562 (while t | |
| 563 (let ((event (next-event))) | |
| 564 (if (and (eval-event-p event) | |
| 565 (eq (event-function event) | |
| 566 'internal-make-dialog-box-exit) | |
| 567 (eq (event-object event) id)) | |
| 568 (return '(nil)) | |
| 569 (dispatch-event event))))))))) | |
| 570 (if (listp result) | |
| 571 (car result) | |
| 572 (signal 'quit nil))))) | |
| 573 (case type | |
| 574 (general | |
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575 (flet ((create-dialog-box-frame () |
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576 (let* ((ftop (frame-property parent 'top)) |
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577 (fleft (frame-property parent 'left)) |
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578 (fwidth (frame-pixel-width parent)) |
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579 (fheight (frame-pixel-height parent)) |
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580 (fonth (font-height (face-font 'default))) |
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581 (fontw (font-width (face-font 'default))) |
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582 (properties (append properties |
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583 dialog-frame-plist)) |
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584 (dfheight (plist-get properties 'height)) |
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585 (dfwidth (plist-get properties 'width)) |
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586 (unmapped (plist-get properties |
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587 'initially-unmapped)) |
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588 (gutter-spec spec) |
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589 (name (or (plist-get properties 'name) "XEmacs")) |
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590 (frame nil)) |
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591 (plist-remprop properties 'initially-unmapped) |
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592 ;; allow the user to just provide a glyph |
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593 (or (glyphp spec) (setq spec (make-glyph spec))) |
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594 (setq gutter-spec (copy-sequence "\n")) |
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595 (set-extent-begin-glyph (make-extent 0 1 gutter-spec) |
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596 spec) |
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597 ;; under FVWM at least, if I don't specify the |
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598 ;; initial position, it ends up always at (0, 0). |
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599 ;; xwininfo doesn't tell me that there are any |
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600 ;; program-specified position hints, so it must be |
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601 ;; an FVWM bug. So just be smashing and position in |
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602 ;; the center of the selected frame. |
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603 (setq frame |
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604 (make-frame |
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605 (append properties |
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606 `(popup |
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607 ,parent initially-unmapped t |
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608 menubar-visible-p nil |
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609 has-modeline-p nil |
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610 default-toolbar-visible-p nil |
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611 top-gutter-visible-p t |
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612 top-gutter-height ,(* dfheight fonth) |
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613 top-gutter ,gutter-spec |
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614 minibuffer none |
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615 name ,name |
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616 modeline-shadow-thickness 0 |
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617 vertical-scrollbar-visible-p nil |
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618 horizontal-scrollbar-visible-p nil |
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619 unsplittable t |
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620 internal-border-width 8 |
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621 left ,(+ fleft (- (/ fwidth 2) |
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622 (/ (* dfwidth |
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623 fontw) |
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624 2))) |
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625 top ,(+ ftop (- (/ fheight 2) |
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626 (/ (* dfheight |
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627 fonth) |
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628 2))))))) |
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629 (set-face-foreground 'modeline [default foreground] frame) |
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630 (set-face-background 'modeline [default background] frame) |
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631 ;; resize before mapping |
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632 (when autosize |
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633 (set-frame-displayable-pixel-size |
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634 frame |
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635 (image-instance-width |
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636 (glyph-image-instance spec |
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637 (frame-selected-window frame))) |
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638 (image-instance-height |
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639 (glyph-image-instance spec |
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640 (frame-selected-window frame))))) |
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641 ;; somehow, even though the resizing is supposed |
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642 ;; to be while the frame is not visible, a |
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643 ;; visible resize is perceptible |
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644 (unless unmapped (make-frame-visible frame)) |
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645 (let ((newbuf (generate-new-buffer " *dialog box*"))) |
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646 (set-buffer-dedicated-frame newbuf frame) |
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647 (set-frame-property frame 'dialog-box-buffer newbuf) |
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648 (set-window-buffer (frame-root-window frame) newbuf) |
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649 (with-current-buffer newbuf |
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650 (set (make-local-variable 'frame-title-format) |
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651 title) |
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652 (add-local-hook 'delete-frame-hook |
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653 #'(lambda (frame) |
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654 (kill-buffer |
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655 (frame-property |
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656 frame |
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657 'dialog-box-buffer)))))) |
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658 frame))) |
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659 (if modal |
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660 (dialog-box-modal-loop '(create-dialog-box-frame)) |
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661 (create-dialog-box-frame)))) |
| 442 | 662 (question |
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663 (remf rest :modal) |
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fbafdc1bb4d2
Use defun*, not cl-parsing-keywords, #'make-dialog-box, #'display-completion-list
Aidan Kehoe <kehoea@parhasard.net>
parents:
2730
diff
changeset
|
664 (if modal |
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fbafdc1bb4d2
Use defun*, not cl-parsing-keywords, #'make-dialog-box, #'display-completion-list
Aidan Kehoe <kehoea@parhasard.net>
parents:
2730
diff
changeset
|
665 (dialog-box-modal-loop `(make-dialog-box-internal ',type ',rest)) |
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5333
aa2705c83c24
Correct a misplaced parenthesis in #'make-dialog-box, thank you Mats!
Aidan Kehoe <kehoea@parhasard.net>
parents:
5330
diff
changeset
|
666 (make-dialog-box-internal type rest))) |
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aa2705c83c24
Correct a misplaced parenthesis in #'make-dialog-box, thank you Mats!
Aidan Kehoe <kehoea@parhasard.net>
parents:
5330
diff
changeset
|
667 (t |
|
aa2705c83c24
Correct a misplaced parenthesis in #'make-dialog-box, thank you Mats!
Aidan Kehoe <kehoea@parhasard.net>
parents:
5330
diff
changeset
|
668 (make-dialog-box-internal type rest))))) |
| 442 | 669 |
| 670 (defun dialog-box-finish (result) | |
| 671 "Exit a modal dialog box, returning RESULT. | |
| 672 This is meant to be executed from a dialog box callback function." | |
| 673 (throw 'internal-dialog-box-finish (list result))) | |
| 674 | |
| 675 (defun dialog-box-cancel () | |
| 676 "Cancel a modal dialog box. | |
| 677 This is meant to be executed from a dialog box callback function." | |
| 678 (throw 'internal-dialog-box-finish 'cancel)) | |
| 679 | |
| 680 ;; an eval event, used as a trigger inside of the dialog modal loop. | |
| 681 (defun internal-make-dialog-box-exit (did) | |
| 682 nil) | |
| 683 | |
| 684 (make-obsolete 'popup-dialog-box 'make-dialog-box) | |
| 685 (defun popup-dialog-box (desc) | |
| 686 "Obsolete equivalent of (make-dialog-box 'question ...). | |
| 687 | |
| 688 \(popup-dialog-box (QUESTION BUTTONS ...) | |
| 689 | |
| 690 is equivalent to | |
| 691 | |
| 692 \(make-dialog-box 'question :question QUESTION :buttons BUTTONS)" | |
| 693 (check-argument-type 'stringp (car desc)) | |
| 694 (or (consp (cdr desc)) | |
| 695 (error 'syntax-error | |
| 696 "Dialog descriptor must supply at least one button" | |
| 697 desc)) | |
| 698 (make-dialog-box 'question :question (car desc) :buttons (cdr desc))) | |
| 699 | |
| 209 | 700 ;;; dialog.el ends here |