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209
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1 ;;; frame.el --- multi-frame management independent of window systems.
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2
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3 ;; Copyright (C) 1993-4, 1997 Free Software Foundation, Inc.
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4 ;; Copyright (C) 1995, 1996 Ben Wing.
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5
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6 ;; Maintainer: XEmacs Development Team
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7 ;; Keywords: internal, dumped
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8
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9 ;; This file is part of XEmacs.
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10
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11 ;; XEmacs is free software; you can redistribute it and/or modify it
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12 ;; under the terms of the GNU General Public License as published by
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13 ;; the Free Software Foundation; either version 2, or (at your option)
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14 ;; any later version.
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15
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16 ;; XEmacs is distributed in the hope that it will be useful, but
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17 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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19 ;; General Public License for more details.
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20
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21 ;; You should have received a copy of the GNU General Public License
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272
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22 ;; along with XEmacs; see the file COPYING. If not, write to the
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209
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23 ;; Free Software Foundation, 59 Temple Place - Suite 330,
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24 ;; Boston, MA 02111-1307, USA.
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25
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26 ;;; Synched up with: FSF 19.30.
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27
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28 ;;; Commentary:
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29
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30 ;; This file is dumped with XEmacs.
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31
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32 ;;; Code:
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33
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34 (defgroup frames nil
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35 "Support for Emacs frames and window systems."
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36 :group 'environment)
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37
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38 ; No need for `frame-creation-function'.
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39
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40 ;;; The initial value given here for this must ask for a minibuffer.
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41 ;;; There must always exist a frame with a minibuffer, and after we
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42 ;;; delete the terminal frame, this will be the only frame.
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43 (defcustom initial-frame-plist '(minibuffer t)
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44 "Plist of frame properties for creating the initial X window frame.
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45 You can set this in your `.emacs' file; for example,
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46 (setq initial-frame-plist '(top 1 left 1 width 80 height 55))
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47 Properties specified here supersede the values given in `default-frame-plist'.
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48 The format of this can also be an alist for backward compatibility.
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49
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50 If the value calls for a frame without a minibuffer, and you have not created
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51 a minibuffer frame on your own, one is created according to
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52 `minibuffer-frame-plist'.
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53
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54 You can specify geometry-related options for just the initial frame
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55 by setting this variable in your `.emacs' file; however, they won't
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56 take effect until Emacs reads `.emacs', which happens after first creating
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57 the frame. If you want the frame to have the proper geometry as soon
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58 as it appears, you need to use this three-step process:
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59 * Specify X resources to give the geometry you want.
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60 * Set `default-frame-plist' to override these options so that they
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61 don't affect subsequent frames.
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62 * Set `initial-frame-plist' in a way that matches the X resources,
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63 to override what you put in `default-frame-plist'."
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219
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64 :type 'plist
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209
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65 :group 'frames)
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66
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67 (defcustom minibuffer-frame-plist '(width 80 height 2 menubar-visible-p nil
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68 default-toolbar-visible-p nil)
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69 "Plist of frame properties for initially creating a minibuffer frame.
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70 You can set this in your `.emacs' file; for example,
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71 (setq minibuffer-frame-plist '(top 1 left 1 width 80 height 2))
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72 Properties specified here supersede the values given in
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73 `default-frame-plist'.
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74 The format of this can also be an alist for backward compatibility."
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219
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75 :type 'plist
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209
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76 :group 'frames)
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77
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78 (defcustom pop-up-frame-plist nil
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79 "Plist of frame properties used when creating pop-up frames.
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80 Pop-up frames are used for completions, help, and the like.
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81 This variable can be set in your init file, like this:
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82 (setq pop-up-frame-plist '(width 80 height 20))
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83 These supersede the values given in `default-frame-plist'.
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84 The format of this can also be an alist for backward compatibility."
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219
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85 :type 'plist
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209
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86 :group 'frames)
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87
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88 (setq pop-up-frame-function
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89 (function (lambda ()
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90 (make-frame pop-up-frame-plist))))
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91
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92 (defcustom special-display-frame-plist '(height 14 width 80 unsplittable t)
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93 "*Plist of frame properties used when creating special frames.
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94 Special frames are used for buffers whose names are in
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95 `special-display-buffer-names' and for buffers whose names match
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96 one of the regular expressions in `special-display-regexps'.
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97 This variable can be set in your init file, like this:
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98 (setq special-display-frame-plist '(width 80 height 20))
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99 These supersede the values given in `default-frame-plist'.
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100 The format of this can also be an alist for backward compatibility."
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219
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101 :type 'plist
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209
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102 :group 'frames)
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103
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104 (defun safe-alist-to-plist (cruftiness)
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105 (if (consp (car cruftiness))
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106 (alist-to-plist cruftiness)
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107 cruftiness))
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108
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109 ;; Display BUFFER in its own frame, reusing an existing window if any.
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110 ;; Return the window chosen.
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111 ;; Currently we do not insist on selecting the window within its frame.
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112 ;; If ARGS is a plist, use it as a list of frame property specs.
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113 ;; #### Change, not compatible with FSF: This stuff is all so incredibly
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114 ;; junky anyway that I doubt it makes any difference.
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115 ;; If ARGS is a list whose car is t,
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116 ;; use (cadr ARGS) as a function to do the work.
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117 ;; Pass it BUFFER as first arg, and (cddr ARGS) gives the rest of the args.
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118 (defun special-display-popup-frame (buffer &optional args)
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119 ;; if we can't display simultaneous multiple frames, just return
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120 ;; nil and let the normal behavior take over.
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121 (and (device-on-window-system-p)
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122 (if (and args (eq t (car args)))
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123 (apply (cadr args) buffer (cddr args))
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124 (let ((window (get-buffer-window buffer t)))
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125 (if window
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126 ;; If we have a window already, make it visible.
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127 (let ((frame (window-frame window)))
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128 (make-frame-visible frame)
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129 (raise-frame frame)
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130 window)
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131 ;; If no window yet, make one in a new frame.
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132 (let ((frame
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133 (make-frame (append (safe-alist-to-plist args)
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134 (safe-alist-to-plist
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135 special-display-frame-plist)))))
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136 (set-window-buffer (frame-selected-window frame) buffer)
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137 (set-window-dedicated-p (frame-selected-window frame) t)
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138 (frame-selected-window frame)))))))
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139
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140 (setq special-display-function 'special-display-popup-frame)
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141
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142 ;;; Handle delete-frame events from the X server.
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143 ;(defun handle-delete-frame (event)
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144 ; (interactive "e")
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145 ; (let ((frame (posn-window (event-start event)))
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146 ; (i 0)
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147 ; (tail (frame-list)))
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148 ; (while tail
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149 ; (and (frame-visible-p (car tail))
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150 ; (not (eq (car tail) frame))
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151 ; (setq i (1+ i)))
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152 ; (setq tail (cdr tail)))
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153 ; (if (> i 0)
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154 ; (delete-frame frame t)
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155 ; (kill-emacs))))
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156
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157
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158 ;;;; Arrangement of frames at startup
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159
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160 ;;; 1) Load the window system startup file from the lisp library and read the
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161 ;;; high-priority arguments (-q and the like). The window system startup
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162 ;;; file should create any frames specified in the window system defaults.
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163 ;;;
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164 ;;; 2) If no frames have been opened, we open an initial text frame.
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165 ;;;
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166 ;;; 3) Once the init file is done, we apply any newly set properties
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167 ;;; in initial-frame-plist to the frame.
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168
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169 ;; These are now called explicitly at the proper times,
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170 ;; since that is easier to understand.
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171 ;; Actually using hooks within Emacs is bad for future maintenance. --rms.
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172 ;; (add-hook 'before-init-hook 'frame-initialize)
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173 ;; (add-hook 'window-setup-hook 'frame-notice-user-settings)
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174
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175 ;;; If we create the initial frame, this is it.
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176 (defvar frame-initial-frame nil)
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177
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178 ;; Record the properties used in frame-initialize to make the initial frame.
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179 (defvar frame-initial-frame-plist)
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180
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181 (defvar frame-initial-geometry-arguments nil)
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182
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183 (defun canonicalize-frame-plists ()
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184 (setq initial-frame-plist (safe-alist-to-plist initial-frame-plist))
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185 (setq default-frame-plist (safe-alist-to-plist default-frame-plist)))
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186
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187 ;;; startup.el calls this function before loading the user's init
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188 ;;; file - if there is no frame with a minibuffer open now, create
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189 ;;; one to display messages while loading the init file.
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190 (defun frame-initialize ()
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191 ;; In batch mode, we actually use the initial terminal device for output.
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192 (canonicalize-frame-plists)
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193 (if (not (noninteractive))
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194 (progn
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195 ;; Don't call select-frame here - focus is a matter of WM policy.
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196
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197 ;; If there is no frame with a minibuffer besides the terminal
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198 ;; frame, then we need to create the opening frame. Make sure
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199 ;; it has a minibuffer, but let initial-frame-plist omit the
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200 ;; minibuffer spec.
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201 (or (delq terminal-frame (minibuffer-frame-list))
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202 (progn
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203 (setq frame-initial-frame-plist
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204 (append initial-frame-plist default-frame-plist))
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205 ;; FSFmacs has scroll-bar junk here that we don't need.
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206 (setq default-minibuffer-frame
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207 (setq frame-initial-frame
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208 (make-frame initial-frame-plist
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209 (car (delq terminal-device
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210 (device-list))))))
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211 ;; Delete any specifications for window geometry properties
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212 ;; so that we won't reapply them in frame-notice-user-settings.
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213 ;; It would be wrong to reapply them then,
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214 ;; because that would override explicit user resizing.
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215 (setq initial-frame-plist
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216 (frame-remove-geometry-props initial-frame-plist))))
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217 ;; At this point, we know that we have a frame open, so we
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218 ;; can delete the terminal device.
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267
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219 ;; (delete-device terminal-device)
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220 ;; Do it the same way Fkill_emacs does it. -slb
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221 (delete-console terminal-console)
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209
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222 (setq terminal-frame nil)
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223
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224 ;; FSFmacs sets frame-creation-function here, but no need.
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225 )))
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226
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227 ;;; startup.el calls this function after loading the user's init
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228 ;;; file. Now default-frame-plist and initial-frame-plist contain
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229 ;;; information to which we must react; do what needs to be done.
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230 (defun frame-notice-user-settings ()
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231
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232 ;; FSFmacs has menu-bar junk here that we don't need.
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233
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234 (canonicalize-frame-plists)
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235
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236 ;; Creating and deleting frames may shift the selected frame around,
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237 ;; and thus the current buffer. Protect against that. We don't
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238 ;; want to use save-excursion here, because that may also try to set
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239 ;; the buffer of the selected window, which fails when the selected
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240 ;; window is the minibuffer.
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241 (let ((old-buffer (current-buffer)))
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242
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243 ;; If the initial frame is still around, apply initial-frame-plist
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244 ;; and default-frame-plist to it.
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245 (if (frame-live-p frame-initial-frame)
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246
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247 ;; The initial frame we create above always has a minibuffer.
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248 ;; If the user wants to remove it, or make it a minibuffer-only
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272
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249 ;; frame, then we'll have to delete the selected frame and make a
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209
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250 ;; new one; you can't remove or add a root window to/from an
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251 ;; existing frame.
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252 ;;
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253 ;; NOTE: default-frame-plist was nil when we created the
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254 ;; existing frame. We need to explicitly include
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255 ;; default-frame-plist in the properties of the screen we
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256 ;; create here, so that its new value, gleaned from the user's
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257 ;; .emacs file, will be applied to the existing screen.
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258 (if (not (eq (car
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259 (or (and (lax-plist-member
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260 initial-frame-plist 'minibuffer)
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261 (list (lax-plist-get initial-frame-plist
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262 'minibuffer)))
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263 (and (lax-plist-member default-frame-plist
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264 'minibuffer)
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265 (list (lax-plist-get default-frame-plist
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266 'minibuffer)))
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267 '(t)))
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268 t))
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269 ;; Create the new frame.
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270 (let (props
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271 )
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272 ;; If the frame isn't visible yet, wait till it is.
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273 ;; If the user has to position the window,
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274 ;; Emacs doesn't know its real position until
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275 ;; the frame is seen to be visible.
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276
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277 (if (frame-property frame-initial-frame 'initially-unmapped)
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278 nil
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279 (while (not (frame-visible-p frame-initial-frame))
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280 (sleep-for 1)))
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281 (setq props (frame-properties frame-initial-frame))
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282 ;; Get rid of `name' unless it was specified explicitly before.
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283 (or (lax-plist-member frame-initial-frame-plist 'name)
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284 (setq props (lax-plist-remprop props 'name)))
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285 (setq props (append initial-frame-plist default-frame-plist
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286 props
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287 nil))
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288 ;; Get rid of `reverse', because that was handled
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289 ;; when we first made the frame.
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290 (laxputf props 'reverse nil)
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291 ;; Get rid of `window-id', otherwise make-frame will
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292 ;; think we're trying to setup an external widget.
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293 (laxremf props 'window-id)
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294 (if (lax-plist-member frame-initial-geometry-arguments 'height)
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295 (laxremf props 'height))
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296 (if (lax-plist-member frame-initial-geometry-arguments 'width)
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297 (laxremf props 'width))
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298 (if (lax-plist-member frame-initial-geometry-arguments 'left)
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299 (laxremf props 'left))
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300 (if (lax-plist-member frame-initial-geometry-arguments 'top)
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301 (laxremf props 'top))
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302
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303 ;; Now create the replacement initial frame.
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304 (make-frame
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305 ;; Use the geometry args that created the existing
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306 ;; frame, rather than the props we get for it.
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307 (append '(user-size t user-position t)
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308 frame-initial-geometry-arguments
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309 props))
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310 ;; The initial frame, which we are about to delete, may be
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311 ;; the only frame with a minibuffer. If it is, create a
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312 ;; new one.
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313 (or (delq frame-initial-frame (minibuffer-frame-list))
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314 (make-initial-minibuffer-frame nil))
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315
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316 ;; If the initial frame is serving as a surrogate
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317 ;; minibuffer frame for any frames, we need to wean them
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318 ;; onto a new frame. The default-minibuffer-frame
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319 ;; variable must be handled similarly.
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320 (let ((users-of-initial
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321 (filtered-frame-list
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322 #'(lambda (frame)
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323 (and (not (eq frame frame-initial-frame))
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324 (eq (window-frame
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325 (minibuffer-window frame))
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326 frame-initial-frame))))))
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327 (if (or users-of-initial
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328 (eq default-minibuffer-frame frame-initial-frame))
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329
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330 ;; Choose an appropriate frame. Prefer frames which
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331 ;; are only minibuffers.
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332 (let* ((new-surrogate
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333 (car
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334 (or (filtered-frame-list
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335 #'(lambda (frame)
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336 (eq 'only
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337 (frame-property frame 'minibuffer))))
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338 (minibuffer-frame-list))))
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339 (new-minibuffer (minibuffer-window new-surrogate)))
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340
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341 (if (eq default-minibuffer-frame frame-initial-frame)
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342 (setq default-minibuffer-frame new-surrogate))
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343
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344 ;; Wean the frames using frame-initial-frame as
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345 ;; their minibuffer frame.
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346 (mapcar
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347 #'
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348 (lambda (frame)
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349 (set-frame-property frame 'minibuffer
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350 new-minibuffer))
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351 users-of-initial))))
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352
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353 ;; Redirect events enqueued at this frame to the new frame.
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354 ;; Is this a good idea?
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355 ;; Probably not, since this whole redirect-frame-focus
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356 ;; stuff is a load of trash, and so is this function we're in.
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357 ;; --ben
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358 ;(redirect-frame-focus frame-initial-frame new)
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359
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360 ;; Finally, get rid of the old frame.
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361 (delete-frame frame-initial-frame t))
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362
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363 ;; Otherwise, we don't need all that rigamarole; just apply
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364 ;; the new properties.
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365 (let (newprops allprops tail)
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366 (setq allprops (append initial-frame-plist
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367 default-frame-plist))
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368 (if (lax-plist-member frame-initial-geometry-arguments 'height)
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369 (laxremf allprops 'height))
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370 (if (lax-plist-member frame-initial-geometry-arguments 'width)
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371 (remf allprops 'width))
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372 (if (lax-plist-member frame-initial-geometry-arguments 'left)
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|
|
373 (laxremf allprops 'left))
|
|
|
374 (if (lax-plist-member frame-initial-geometry-arguments 'top)
|
|
|
375 (laxremf allprops 'top))
|
|
|
376 (setq tail allprops)
|
|
|
377 ;; Find just the props that have changed since we first
|
|
|
378 ;; made this frame. Those are the ones actually set by
|
|
|
379 ;; the init file. For those props whose values we already knew
|
|
|
380 ;; (such as those spec'd by command line options)
|
|
|
381 ;; it is undesirable to specify the parm again
|
|
|
382 ;; once the user has seen the frame and been able to alter it
|
|
|
383 ;; manually.
|
|
|
384 (while tail
|
|
|
385 (let (newval oldval)
|
|
|
386 (setq oldval (lax-plist-get frame-initial-frame-plist
|
|
|
387 (car tail)))
|
|
|
388 (setq newval (lax-plist-get allprops (car tail)))
|
|
|
389 (or (eq oldval newval)
|
|
|
390 (laxputf newprops (car tail) newval)))
|
|
|
391 (setq tail (cddr tail)))
|
|
|
392 (set-frame-properties frame-initial-frame newprops)
|
|
|
393 ;silly FSFmacs junk
|
|
|
394 ;if (lax-plist-member newprops 'font)
|
|
|
395 ; (frame-update-faces frame-initial-frame))
|
|
|
396
|
|
|
397 )))
|
|
|
398
|
|
|
399 ;; Restore the original buffer.
|
|
|
400 (set-buffer old-buffer)
|
|
|
401
|
|
|
402 ;; Make sure the initial frame can be GC'd if it is ever deleted.
|
|
|
403 ;; Make sure frame-notice-user-settings does nothing if called twice.
|
|
|
404 (setq frame-initial-frame nil)))
|
|
|
405
|
|
|
406 (defun make-initial-minibuffer-frame (device)
|
|
|
407 (let ((props (append '(minibuffer only)
|
|
|
408 (safe-alist-to-plist minibuffer-frame-plist))))
|
|
|
409 (make-frame props device)))
|
|
|
410
|
|
|
411
|
|
|
412 ;;;; Creation of additional frames, and other frame miscellanea
|
|
|
413
|
|
|
414 (defun get-other-frame ()
|
|
272
|
415 "Return some frame other than the selected frame, creating one if necessary."
|
|
209
|
416 (let* ((this (selected-frame))
|
|
|
417 ;; search visible frames first
|
|
|
418 (next (next-frame this 'visible-nomini)))
|
|
|
419 ;; then search iconified frames
|
|
|
420 (if (eq this next)
|
|
|
421 (setq next (next-frame 'visible-iconic-nomini)))
|
|
|
422 (if (eq this next)
|
|
|
423 ;; otherwise, make a new frame
|
|
|
424 (make-frame)
|
|
|
425 next)))
|
|
|
426
|
|
|
427 (defun next-multiframe-window ()
|
|
|
428 "Select the next window, regardless of which frame it is on."
|
|
|
429 (interactive)
|
|
|
430 (select-window (next-window (selected-window)
|
|
|
431 (> (minibuffer-depth) 0)
|
|
|
432 t)))
|
|
|
433
|
|
|
434 (defun previous-multiframe-window ()
|
|
|
435 "Select the previous window, regardless of which frame it is on."
|
|
|
436 (interactive)
|
|
|
437 (select-window (previous-window (selected-window)
|
|
|
438 (> (minibuffer-depth) 0)
|
|
|
439 t)))
|
|
|
440
|
|
|
441 (defun make-frame-on-device (type connection &optional props)
|
|
|
442 "Create a frame of type TYPE on CONNECTION.
|
|
|
443 TYPE should be a symbol naming the device type, i.e. one of
|
|
|
444
|
|
213
|
445 x An X display. CONNECTION should be a standard display string
|
|
|
446 such as \"unix:0\", or nil for the display specified on the
|
|
|
447 command line or in the DISPLAY environment variable. Only if
|
|
|
448 support for X was compiled into XEmacs.
|
|
|
449 tty A standard TTY connection or terminal. CONNECTION should be
|
|
|
450 a TTY device name such as \"/dev/ttyp2\" (as determined by
|
|
|
451 the Unix command `tty') or nil for XEmacs' standard input
|
|
|
452 and output (usually the TTY in which XEmacs started). Only
|
|
|
453 if support for TTY's was compiled into XEmacs.
|
|
|
454 ns A connection to a machine running the NeXTstep windowing
|
|
|
455 system. Not currently implemented.
|
|
|
456 mswindows A connection to a machine running Microsoft Windows NT or
|
|
|
457 Windows 95/97.
|
|
|
458 pc A direct-write MS-DOS frame. Not currently implemented.
|
|
209
|
459
|
|
|
460 PROPS should be a plist of properties, as in the call to `make-frame'.
|
|
|
461
|
|
|
462 If a connection to CONNECTION already exists, it is reused; otherwise,
|
|
|
463 a new connection is opened."
|
|
|
464 (make-frame props (make-device type connection props)))
|
|
|
465
|
|
|
466 ;; Alias, kept temporarily.
|
|
|
467 (defalias 'new-frame 'make-frame)
|
|
|
468
|
|
|
469 ; FSFmacs has make-frame here. We have it in C, so no need for
|
|
|
470 ; frame-creation-function.
|
|
|
471
|
|
|
472 (defun filtered-frame-list (predicate &optional device)
|
|
|
473 "Return a list of all live frames which satisfy PREDICATE.
|
|
|
474 If optional second arg DEVICE is non-nil, restrict the frames
|
|
|
475 returned to that device."
|
|
|
476 (let ((frames (if device (device-frame-list device)
|
|
|
477 (frame-list)))
|
|
|
478 good-frames)
|
|
|
479 (while (consp frames)
|
|
|
480 (if (funcall predicate (car frames))
|
|
|
481 (setq good-frames (cons (car frames) good-frames)))
|
|
|
482 (setq frames (cdr frames)))
|
|
|
483 good-frames))
|
|
|
484
|
|
|
485 (defun minibuffer-frame-list (&optional device)
|
|
|
486 "Return a list of all frames with their own minibuffers.
|
|
|
487 If optional second arg DEVICE is non-nil, restrict the frames
|
|
|
488 returned to that device."
|
|
|
489 (filtered-frame-list
|
|
|
490 #'(lambda (frame)
|
|
|
491 (eq frame (window-frame (minibuffer-window frame))))
|
|
|
492 device))
|
|
|
493
|
|
|
494 (defun frame-minibuffer-only-p (frame)
|
|
|
495 "Return non-nil if FRAME is a minibuffer-only frame."
|
|
|
496 (eq (frame-root-window frame) (minibuffer-window frame)))
|
|
|
497
|
|
|
498 (defun frame-remove-geometry-props (plist)
|
|
|
499 "Return the property list PLIST, but with geometry specs removed.
|
|
|
500 This deletes all bindings in PLIST for `top', `left', `width',
|
|
|
501 `height', `user-size' and `user-position' properties.
|
|
|
502 Emacs uses this to avoid overriding explicit moves and resizings from
|
|
|
503 the user during startup."
|
|
|
504 (setq plist (canonicalize-lax-plist (copy-sequence plist)))
|
|
|
505 (mapcar #'(lambda (propname)
|
|
|
506 (if (lax-plist-member plist propname)
|
|
|
507 (progn
|
|
|
508 (setq frame-initial-geometry-arguments
|
|
|
509 (cons propname
|
|
|
510 (cons (lax-plist-get plist propname)
|
|
|
511 frame-initial-geometry-arguments)))
|
|
|
512 (setq plist (lax-plist-remprop plist propname)))))
|
|
|
513 '(height width top left user-size user-position))
|
|
|
514 plist)
|
|
|
515
|
|
|
516 (defun other-frame (arg)
|
|
|
517 "Select the ARG'th different visible frame, and raise it.
|
|
|
518 All frames are arranged in a cyclic order.
|
|
|
519 This command selects the frame ARG steps away in that order.
|
|
280
|
520 A negative ARG moves in the opposite order.
|
|
|
521
|
|
284
|
522 This sets the window system focus, regardless of the value
|
|
|
523 of `focus-follows-mouse'."
|
|
209
|
524 (interactive "p")
|
|
284
|
525 (let ((frame (selected-frame)))
|
|
209
|
526 (while (> arg 0)
|
|
|
527 (setq frame (next-frame frame 'visible-nomini))
|
|
|
528 (setq arg (1- arg)))
|
|
|
529 (while (< arg 0)
|
|
|
530 (setq frame (previous-frame frame 'visible-nomini))
|
|
|
531 (setq arg (1+ arg)))
|
|
|
532 (raise-frame frame)
|
|
284
|
533 (focus-frame frame)
|
|
209
|
534 ;this is a bad idea; you should in general never warp the
|
|
|
535 ;pointer unless the user asks for this. Furthermore,
|
|
|
536 ;our version of `set-mouse-position' takes a window,
|
|
|
537 ;not a frame.
|
|
|
538 ;(set-mouse-position (selected-frame) (1- (frame-width)) 0)
|
|
|
539 ;some weird FSFmacs randomness
|
|
|
540 ;(if (fboundp 'unfocus-frame)
|
|
|
541 ; (unfocus-frame))))
|
|
|
542 ))
|
|
284
|
543
|
|
|
544 ;; XEmacs-added utility functions
|
|
209
|
545
|
|
284
|
546 (defmacro save-selected-frame (&rest body)
|
|
|
547 "Execute forms in BODY, then restore the selected frame.
|
|
|
548 The value returned is the value of the last form in BODY."
|
|
|
549 (let ((old-frame (gensym "ssf")))
|
|
|
550 `(let ((,old-frame (selected-frame)))
|
|
|
551 (unwind-protect
|
|
|
552 (progn ,@body)
|
|
|
553 (select-frame ,old-frame)))))
|
|
|
554
|
|
|
555 (defmacro with-selected-frame (frame &rest body)
|
|
|
556 "Execute forms in BODY with FRAME as the selected frame.
|
|
|
557 The value returned is the value of the last form in BODY."
|
|
|
558 `(save-selected-frame
|
|
|
559 (select-frame ,frame)
|
|
|
560 ,@body))
|
|
209
|
561
|
|
|
562 ; this is in C in FSFmacs
|
|
|
563 (defun frame-list ()
|
|
|
564 "Return a list of all frames on all devices/consoles."
|
|
|
565 ;; Lists are copies, so nconc is safe here.
|
|
|
566 (apply 'nconc (mapcar 'device-frame-list (device-list))))
|
|
|
567
|
|
|
568 (defun frame-type (&optional frame)
|
|
|
569 "Return the type of the specified frame (e.g. `x' or `tty').
|
|
|
570 This is equivalent to the type of the frame's device.
|
|
|
571 Value is `tty' for a tty frame (a character-only terminal),
|
|
|
572 `x' for a frame that is an X window,
|
|
|
573 `ns' for a frame that is a NeXTstep window (not yet implemented),
|
|
213
|
574 `mswindows' for a frame that is a Windows NT or Windows 95/97 window,
|
|
209
|
575 `pc' for a frame that is a direct-write MS-DOS frame (not yet implemented),
|
|
|
576 `stream' for a stream frame (which acts like a stdio stream), and
|
|
|
577 `dead' for a deleted frame."
|
|
|
578 (or frame (setq frame (selected-frame)))
|
|
|
579 (if (not (frame-live-p frame)) 'dead
|
|
|
580 (device-type (frame-device frame))))
|
|
|
581
|
|
|
582 (defun device-or-frame-p (object)
|
|
|
583 "Return non-nil if OBJECT is a device or frame."
|
|
|
584 (or (devicep object)
|
|
|
585 (framep object)))
|
|
|
586
|
|
|
587 (defun device-or-frame-type (device-or-frame)
|
|
|
588 "Return the type (e.g. `x' or `tty') of DEVICE-OR-FRAME.
|
|
|
589 DEVICE-OR-FRAME should be a device or a frame object. See `device-type'
|
|
|
590 for a description of the possible types."
|
|
|
591 (if (devicep device-or-frame)
|
|
|
592 (device-type device-or-frame)
|
|
|
593 (frame-type device-or-frame)))
|
|
|
594
|
|
|
595 (defun fw-frame (obj)
|
|
|
596 "Given a frame or window, return the associated frame.
|
|
|
597 Return nil otherwise."
|
|
|
598 (cond ((windowp obj) (window-frame obj))
|
|
|
599 ((framep obj) obj)
|
|
|
600 (t nil)))
|
|
|
601
|
|
|
602
|
|
|
603 ;;;; Frame configurations
|
|
|
604
|
|
|
605 (defun current-frame-configuration ()
|
|
|
606 "Return a list describing the positions and states of all frames.
|
|
|
607 Its car is `frame-configuration'.
|
|
|
608 Each element of the cdr is a list of the form (FRAME PLIST WINDOW-CONFIG),
|
|
|
609 where
|
|
|
610 FRAME is a frame object,
|
|
|
611 PLIST is a property list specifying some of FRAME's properties, and
|
|
|
612 WINDOW-CONFIG is a window configuration object for FRAME."
|
|
|
613 (cons 'frame-configuration
|
|
|
614 (mapcar (function
|
|
|
615 (lambda (frame)
|
|
|
616 (list frame
|
|
|
617 (frame-properties frame)
|
|
|
618 (current-window-configuration frame))))
|
|
|
619 (frame-list))))
|
|
|
620
|
|
|
621 (defun set-frame-configuration (configuration &optional nodelete)
|
|
|
622 "Restore the frames to the state described by CONFIGURATION.
|
|
|
623 Each frame listed in CONFIGURATION has its position, size, window
|
|
|
624 configuration, and other properties set as specified in CONFIGURATION.
|
|
|
625 Ordinarily, this function deletes all existing frames not
|
|
|
626 listed in CONFIGURATION. But if optional second argument NODELETE
|
|
|
627 is given and non-nil, the unwanted frames are iconified instead."
|
|
|
628 (or (frame-configuration-p configuration)
|
|
|
629 (signal 'wrong-type-argument
|
|
|
630 (list 'frame-configuration-p configuration)))
|
|
|
631 (let ((config-plist (cdr configuration))
|
|
|
632 frames-to-delete)
|
|
|
633 (mapc (lambda (frame)
|
|
|
634 (let ((properties (assq frame config-plist)))
|
|
|
635 (if properties
|
|
|
636 (progn
|
|
|
637 (set-frame-properties
|
|
|
638 frame
|
|
|
639 ;; Since we can't set a frame's minibuffer status,
|
|
|
640 ;; we might as well omit the parameter altogether.
|
|
|
641 (lax-plist-remprop (nth 1 properties) 'minibuffer))
|
|
|
642 (set-window-configuration (nth 2 properties)))
|
|
|
643 (setq frames-to-delete (cons frame frames-to-delete)))))
|
|
|
644 (frame-list))
|
|
|
645 (if nodelete
|
|
|
646 ;; Note: making frames invisible here was tried
|
|
|
647 ;; but led to some strange behavior--each time the frame
|
|
|
648 ;; was made visible again, the window manager asked afresh
|
|
|
649 ;; for where to put it.
|
|
|
650 (mapc 'iconify-frame frames-to-delete)
|
|
|
651 (mapc 'delete-frame frames-to-delete))))
|
|
|
652
|
|
|
653 ; this function is in subr.el in FSFmacs.
|
|
|
654 ; that's because they don't always include frame.el, while we do.
|
|
|
655
|
|
|
656 (defun frame-configuration-p (object)
|
|
|
657 "Return non-nil if OBJECT seems to be a frame configuration.
|
|
|
658 Any list whose car is `frame-configuration' is assumed to be a frame
|
|
|
659 configuration."
|
|
|
660 (and (consp object)
|
|
|
661 (eq (car object) 'frame-configuration)))
|
|
|
662
|
|
|
663
|
|
|
664 ;; FSFmacs has functions `frame-width', `frame-height' here.
|
|
|
665 ;; We have them in C.
|
|
|
666
|
|
|
667 ;; FSFmacs has weird functions `set-default-font', `set-background-color',
|
|
|
668 ;; `set-foreground-color' here. They don't do sensible things like
|
|
|
669 ;; set faces; instead they set frame properties (??!!) and call
|
|
|
670 ;; useless functions such as `frame-update-faces' and
|
|
|
671 ;; `frame-update-face-colors'.
|
|
|
672
|
|
|
673 ;; FSFmacs has functions `set-cursor-color', `set-mouse-color', and
|
|
|
674 ;; `set-border-color', which refer to frame properties.
|
|
|
675 ;; #### We need to use specifiers here.
|
|
|
676
|
|
|
677 ;(defun auto-raise-mode (arg)
|
|
|
678 ; "Toggle whether or not the selected frame should auto-raise.
|
|
|
679 ;With arg, turn auto-raise mode on if and only if arg is positive.
|
|
|
680 ;Note that this controls Emacs's own auto-raise feature.
|
|
|
681 ;Some window managers allow you to enable auto-raise for certain windows.
|
|
|
682 ;You can use that for Emacs windows if you wish, but if you do,
|
|
|
683 ;that is beyond the control of Emacs and this command has no effect on it."
|
|
|
684 ; (interactive "P")
|
|
|
685 ; (if (null arg)
|
|
|
686 ; (setq arg
|
|
|
687 ; (if (frame-property (selected-frame) 'auto-raise)
|
|
|
688 ; -1 1)))
|
|
|
689 ; (set-frame-property (selected-frame) 'auto-raise (> arg 0)))
|
|
|
690
|
|
|
691 ;(defun auto-lower-mode (arg)
|
|
|
692 ; "Toggle whether or not the selected frame should auto-lower.
|
|
|
693 ;With arg, turn auto-lower mode on if and only if arg is positive.
|
|
|
694 ;Note that this controls Emacs's own auto-lower feature.
|
|
|
695 ;Some window managers allow you to enable auto-lower for certain windows.
|
|
|
696 ;You can use that for Emacs windows if you wish, but if you do,
|
|
|
697 ;that is beyond the control of Emacs and this command has no effect on it."
|
|
|
698 ; (interactive "P")
|
|
|
699 ; (if (null arg)
|
|
|
700 ; (setq arg
|
|
|
701 ; (if (frame-property (selected-frame) 'auto-lower)
|
|
|
702 ; -1 1)))
|
|
|
703 ; (set-frame-property (selected-frame) 'auto-lower (> arg 0)))
|
|
|
704
|
|
|
705 ;; FSFmacs has silly functions `toggle-scroll-bar',
|
|
|
706 ;; `toggle-horizontal-scrollbar'
|
|
|
707
|
|
|
708 ;;; Iconifying emacs.
|
|
|
709 ;;;
|
|
|
710 ;;; The function iconify-emacs replaces every non-iconified emacs window
|
|
|
711 ;;; with a *single* icon. Iconified emacs windows are left alone. When
|
|
|
712 ;;; emacs is in this globally-iconified state, de-iconifying any emacs icon
|
|
|
713 ;;; will uniconify all frames that were visible, and iconify all frames
|
|
|
714 ;;; that were not. This is done by temporarily changing the value of
|
|
272
|
715 ;;; `map-frame-hook' to `deiconify-emacs' (which should never be called
|
|
209
|
716 ;;; except from the map-frame-hook while emacs is iconified).
|
|
|
717 ;;;
|
|
|
718 ;;; The title of the icon representing all emacs frames is controlled by
|
|
|
719 ;;; the variable `icon-name'. This is done by temporarily changing the
|
|
|
720 ;;; value of `frame-icon-title-format'. Unfortunately, this changes the
|
|
|
721 ;;; titles of all emacs icons, not just the "big" icon.
|
|
|
722 ;;;
|
|
|
723 ;;; It would be nice if existing icons were removed and restored by
|
|
|
724 ;;; iconifying the emacs process, but I couldn't make that work yet.
|
|
|
725
|
|
|
726 (defvar icon-name nil) ; set this at run time, not load time.
|
|
|
727
|
|
|
728 (defvar iconification-data nil)
|
|
|
729
|
|
|
730 (defun iconify-emacs ()
|
|
|
731 "Replace every non-iconified FRAME with a *single* icon.
|
|
|
732 Iconified frames are left alone. When XEmacs is in this
|
|
|
733 globally-iconified state, de-iconifying any emacs icon will uniconify
|
|
|
734 all frames that were visible, and iconify all frames that were not."
|
|
|
735 (interactive)
|
|
|
736 (if iconification-data (error "already iconified?"))
|
|
|
737 (let* ((frames (frame-list))
|
|
|
738 (rest frames)
|
|
|
739 (me (selected-frame))
|
|
|
740 frame)
|
|
|
741 (while rest
|
|
|
742 (setq frame (car rest))
|
|
|
743 (setcar rest (cons frame (frame-visible-p frame)))
|
|
|
744 ; (if (memq (cdr (car rest)) '(icon nil))
|
|
|
745 ; (progn
|
|
|
746 ; (make-frame-visible frame) ; deiconify, and process the X event
|
|
|
747 ; (sleep-for 500 t) ; process X events; I really want to XSync() here
|
|
|
748 ; ))
|
|
|
749 (or (eq frame me) (make-frame-invisible frame))
|
|
|
750 (setq rest (cdr rest)))
|
|
|
751 (or (boundp 'map-frame-hook) (setq map-frame-hook nil))
|
|
|
752 (or icon-name
|
|
|
753 (setq icon-name (concat invocation-name " @ " (system-name))))
|
|
|
754 (setq iconification-data
|
|
|
755 (list frame-icon-title-format map-frame-hook frames)
|
|
|
756 frame-icon-title-format icon-name
|
|
|
757 map-frame-hook 'deiconify-emacs)
|
|
|
758 (iconify-frame me)))
|
|
|
759
|
|
|
760
|
|
|
761 (defun deiconify-emacs (&optional ignore)
|
|
|
762 (or iconification-data (error "not iconified?"))
|
|
|
763 (setq frame-icon-title-format (car iconification-data)
|
|
|
764 map-frame-hook (car (cdr iconification-data))
|
|
|
765 iconification-data (car (cdr (cdr iconification-data))))
|
|
|
766 (while iconification-data
|
|
|
767 (let ((visibility (cdr (car iconification-data))))
|
|
|
768 (cond (visibility ;; JV (Note non-nil means visible in XEmacs)
|
|
|
769 (make-frame-visible (car (car iconification-data))))
|
|
|
770 ; (t ;; (eq visibility 'icon) ;; JV Not in XEmacs!!!
|
|
|
771 ; (make-frame-visible (car (car iconification-data)))
|
|
|
772 ; (sleep-for 500 t) ; process X events; I really want to XSync() here
|
|
|
773 ; (iconify-frame (car (car iconification-data))))
|
|
|
774 ;; (t nil)
|
|
|
775 ))
|
|
|
776 (setq iconification-data (cdr iconification-data))))
|
|
|
777
|
|
|
778 (defun suspend-or-iconify-emacs ()
|
|
272
|
779 "Call iconify-emacs if using a window system, otherwise call suspend-emacs."
|
|
209
|
780 (interactive)
|
|
245
|
781 (cond ((device-on-window-system-p)
|
|
|
782 (iconify-emacs))
|
|
272
|
783 ((and (eq (device-type) 'tty)
|
|
245
|
784 (console-tty-controlling-process (selected-console)))
|
|
|
785 (suspend-console (selected-console)))
|
|
|
786 (t
|
|
|
787 (suspend-emacs))))
|
|
209
|
788
|
|
|
789 ;; This is quite a mouthful, but it should be descriptive, as it's
|
|
245
|
790 ;; bound to C-z. FSF takes the easy way out by binding C-z to
|
|
|
791 ;; different things depending on window-system. We can't do the same,
|
|
|
792 ;; because we allow simultaneous X and TTY consoles.
|
|
209
|
793 (defun suspend-emacs-or-iconify-frame ()
|
|
272
|
794 "Iconify the selected frame if using a window system, otherwise suspend Emacs."
|
|
209
|
795 (interactive)
|
|
245
|
796 (cond ((device-on-window-system-p)
|
|
209
|
797 (iconify-frame))
|
|
|
798 ((and (eq (frame-type) 'tty)
|
|
|
799 (console-tty-controlling-process (selected-console)))
|
|
|
800 (suspend-console (selected-console)))
|
|
|
801 (t
|
|
|
802 (suspend-emacs))))
|
|
|
803
|
|
|
804
|
|
|
805 ;;; auto-raise and auto-lower
|
|
|
806
|
|
|
807 (defcustom auto-raise-frame nil
|
|
|
808 "*If true, frames will be raised to the top when selected.
|
|
|
809 Under X, most ICCCM-compliant window managers will have an option to do this
|
|
|
810 for you, but this variable is provided in case you're using a broken WM."
|
|
|
811 :type 'boolean
|
|
|
812 :group 'frames)
|
|
|
813
|
|
|
814 (defcustom auto-lower-frame nil
|
|
|
815 "*If true, frames will be lowered to the bottom when no longer selected.
|
|
|
816 Under X, most ICCCM-compliant window managers will have an option to do this
|
|
|
817 for you, but this variable is provided in case you're using a broken WM."
|
|
|
818 :type 'boolean
|
|
|
819 :group 'frames)
|
|
|
820
|
|
|
821 (defun default-select-frame-hook ()
|
|
272
|
822 "Implement the `auto-raise-frame' variable.
|
|
209
|
823 For use as the value of `select-frame-hook'."
|
|
|
824 (if auto-raise-frame (raise-frame (selected-frame))))
|
|
|
825
|
|
|
826 (defun default-deselect-frame-hook ()
|
|
272
|
827 "Implement the `auto-lower-frame' variable.
|
|
209
|
828 For use as the value of `deselect-frame-hook'."
|
|
211
|
829 (if auto-lower-frame (lower-frame (selected-frame)))
|
|
|
830 (highlight-extent nil nil))
|
|
209
|
831
|
|
|
832 (or select-frame-hook
|
|
|
833 (add-hook 'select-frame-hook 'default-select-frame-hook))
|
|
|
834
|
|
|
835 (or deselect-frame-hook
|
|
|
836 (add-hook 'deselect-frame-hook 'default-deselect-frame-hook))
|
|
|
837
|
|
|
838
|
|
|
839 ;;; Application-specific frame-management
|
|
|
840
|
|
278
|
841 (defcustom get-frame-for-buffer-default-frame-name nil
|
|
|
842 "*The default frame to select; see doc of `get-frame-for-buffer'."
|
|
|
843 :type 'string
|
|
|
844 :group 'frames)
|
|
209
|
845
|
|
278
|
846 (defcustom get-frame-for-buffer-default-instance-limit nil
|
|
|
847 "*The default instance limit for creating new frames;
|
|
|
848 see doc of `get-frame-for-buffer'."
|
|
|
849 :type 'integer
|
|
|
850 :group 'frames)
|
|
209
|
851
|
|
|
852 (defun get-frame-name-for-buffer (buffer)
|
|
|
853 (let ((mode (and (get-buffer buffer)
|
|
|
854 (save-excursion (set-buffer buffer)
|
|
|
855 major-mode))))
|
|
|
856 (or (get mode 'frame-name)
|
|
|
857 get-frame-for-buffer-default-frame-name)))
|
|
|
858
|
|
|
859 (defun get-frame-for-buffer-make-new-frame (buffer &optional frame-name plist)
|
|
|
860 (let* ((fr (make-frame plist))
|
|
|
861 (w (frame-root-window fr)))
|
|
|
862 ;;
|
|
|
863 ;; Make the one buffer being displayed in this newly created
|
|
|
864 ;; frame be the buffer of interest, instead of something
|
|
|
865 ;; random, so that it won't be shown in two-window mode.
|
|
|
866 ;; Avoid calling switch-to-buffer here, since that's something
|
|
|
867 ;; people might want to call this routine from.
|
|
|
868 ;;
|
|
|
869 ;; (If the root window doesn't have a buffer, then that means
|
|
|
870 ;; there is more than one window on the frame, which can only
|
|
|
871 ;; happen if the user has done something funny on the frame-
|
|
|
872 ;; creation-hook. If that's the case, leave it alone.)
|
|
|
873 ;;
|
|
|
874 (if (window-buffer w)
|
|
|
875 (set-window-buffer w buffer))
|
|
|
876 fr))
|
|
|
877
|
|
263
|
878 (defcustom get-frame-for-buffer-default-to-current nil
|
|
272
|
879 "*When non-nil, `get-frame-for-buffer' will default to the selected frame."
|
|
263
|
880 :type 'boolean
|
|
|
881 :group 'frames)
|
|
|
882
|
|
209
|
883 (defun get-frame-for-buffer-noselect (buffer
|
|
|
884 &optional not-this-window-p on-frame)
|
|
|
885 "Return a frame in which to display BUFFER.
|
|
|
886 This is a subroutine of `get-frame-for-buffer' (which see)."
|
|
|
887 (let (name limit)
|
|
|
888 (cond
|
|
|
889 ((or on-frame (eq (selected-window) (minibuffer-window)))
|
|
|
890 ;; don't switch frames if a frame was specified, or to list
|
|
|
891 ;; completions from the minibuffer, etc.
|
|
|
892 nil)
|
|
|
893
|
|
|
894 ((setq name (get-frame-name-for-buffer buffer))
|
|
|
895 ;;
|
|
|
896 ;; This buffer's mode expressed a preference for a frame of a particular
|
|
|
897 ;; name. That always takes priority.
|
|
|
898 ;;
|
|
|
899 (let ((limit (get name 'instance-limit))
|
|
|
900 (defaults (get name 'frame-defaults))
|
|
|
901 (matching-frames '())
|
|
|
902 frames frame already-visible)
|
|
|
903 ;; Sort the list so that iconic frames will be found last. They
|
|
|
904 ;; will be used too, but mapped frames take precedence. And
|
|
|
905 ;; fully visible frames come before occluded frames.
|
|
|
906 ;; Hidden frames come after really visible ones
|
|
|
907 (setq frames
|
|
|
908 (sort (frame-list)
|
|
|
909 #'(lambda (s1 s2)
|
|
|
910 (cond ((frame-totally-visible-p s2)
|
|
|
911 nil)
|
|
|
912 ((not (frame-visible-p s2))
|
|
|
913 (frame-visible-p s1))
|
|
|
914 ((eq (frame-visible-p s2) 'hidden)
|
|
|
915 (eq (frame-visible-p s1) t ))
|
|
|
916 ((not (frame-totally-visible-p s2))
|
|
|
917 (and (frame-visible-p s1)
|
|
|
918 (frame-totally-visible-p s1)))))))
|
|
|
919 ;; but the selected frame should come first, even if it's occluded,
|
|
|
920 ;; to minimize thrashing.
|
|
|
921 (setq frames (cons (selected-frame)
|
|
|
922 (delq (selected-frame) frames)))
|
|
272
|
923
|
|
209
|
924 (setq name (symbol-name name))
|
|
|
925 (while frames
|
|
|
926 (setq frame (car frames))
|
|
|
927 (if (equal name (frame-name frame))
|
|
|
928 (if (get-buffer-window buffer frame)
|
|
|
929 (setq already-visible frame
|
|
|
930 frames nil)
|
|
|
931 (setq matching-frames (cons frame matching-frames))))
|
|
|
932 (setq frames (cdr frames)))
|
|
|
933 (cond (already-visible
|
|
|
934 already-visible)
|
|
|
935 ((or (null matching-frames)
|
|
|
936 (eq limit 0) ; means create with reckless abandon
|
|
|
937 (and limit (< (length matching-frames) limit)))
|
|
|
938 (get-frame-for-buffer-make-new-frame
|
|
|
939 buffer
|
|
|
940 name
|
|
|
941 (alist-to-plist (acons 'name name
|
|
|
942 (plist-to-alist defaults)))))
|
|
|
943 (t
|
|
|
944 ;; do not switch any of the window/buffer associations in an
|
|
|
945 ;; existing frame; this function only picks a frame; the
|
|
|
946 ;; determination of which windows on it get reused is up to
|
|
|
947 ;; display-buffer itself.
|
|
|
948 ;; (or (window-dedicated-p (selected-window))
|
|
|
949 ;; (switch-to-buffer buffer))
|
|
|
950 (car matching-frames)))))
|
|
|
951
|
|
|
952 ((setq limit get-frame-for-buffer-default-instance-limit)
|
|
|
953 ;;
|
|
|
954 ;; This buffer's mode did not express a preference for a frame of a
|
|
|
955 ;; particular name, but the user wants a new frame rather than
|
|
|
956 ;; reusing the existing one.
|
|
|
957 (let* ((defname
|
|
|
958 (or (plist-get default-frame-plist 'name)
|
|
|
959 default-frame-name))
|
|
|
960 (frames
|
|
|
961 (sort (filtered-frame-list #'(lambda (x)
|
|
|
962 (or (frame-visible-p x)
|
|
|
963 (frame-iconified-p x))))
|
|
|
964 #'(lambda (s1 s2)
|
|
|
965 (cond ((and (frame-visible-p s1)
|
|
|
966 (not (frame-visible-p s2))))
|
|
|
967 ((and (eq (frame-visible-p s1) t)
|
|
|
968 (eq (frame-visible-p s2) 'hidden)))
|
|
|
969 ((and (frame-visible-p s2)
|
|
|
970 (not (frame-visible-p s1)))
|
|
|
971 nil)
|
|
|
972 ((and (equal (frame-name s1) defname)
|
|
|
973 (not (equal (frame-name s2) defname))))
|
|
|
974 ((and (equal (frame-name s2) defname)
|
|
|
975 (not (equal (frame-name s1) defname)))
|
|
|
976 nil)
|
|
|
977 ((frame-totally-visible-p s2)
|
|
|
978 nil)
|
|
|
979 (t))))))
|
|
|
980 ;; put the selected frame last. The user wants a new frame,
|
|
|
981 ;; so don't reuse the existing one unless forced to.
|
|
|
982 (setq frames (append (delq (selected-frame) frames) (list frames)))
|
|
|
983 (if (or (eq limit 0) ; means create with reckless abandon
|
|
|
984 (< (length frames) limit))
|
|
|
985 (get-frame-for-buffer-make-new-frame buffer)
|
|
|
986 (car frames))))
|
|
|
987
|
|
259
|
988 (not-this-window-p
|
|
|
989 (let ((w-list (windows-of-buffer buffer))
|
|
|
990 f w
|
|
|
991 (first-choice nil)
|
|
263
|
992 (second-choice (if get-frame-for-buffer-default-to-current
|
|
|
993 (selected-frame)
|
|
|
994 nil))
|
|
259
|
995 (last-resort nil))
|
|
|
996 (while (and w-list (null first-choice))
|
|
|
997 (setq w (car w-list)
|
|
|
998 f (window-frame w))
|
|
|
999 (cond ((eq w (selected-window)) nil)
|
|
|
1000 ((not (frame-visible-p f))
|
|
|
1001 (if (null last-resort)
|
|
263
|
1002 (setq last-resort f)))
|
|
259
|
1003 ((eq f (selected-frame))
|
|
263
|
1004 (setq first-choice f))
|
|
259
|
1005 ((null second-choice)
|
|
263
|
1006 (setq second-choice f)))
|
|
259
|
1007 (setq w-list (cdr w-list)))
|
|
|
1008 (or first-choice second-choice last-resort)))
|
|
263
|
1009
|
|
|
1010 (get-frame-for-buffer-default-to-current (selected-frame))
|
|
|
1011
|
|
209
|
1012 (t
|
|
|
1013 ;;
|
|
|
1014 ;; This buffer's mode did not express a preference for a frame of a
|
|
|
1015 ;; particular name. So try to find a frame already displaying this
|
|
272
|
1016 ;; buffer.
|
|
209
|
1017 ;;
|
|
259
|
1018 (let ((w (or (get-buffer-window buffer nil) ; check current first
|
|
|
1019 (get-buffer-window buffer 'visible) ; then visible
|
|
209
|
1020 (get-buffer-window buffer 0)))) ; then iconic
|
|
|
1021 (cond ((null w)
|
|
|
1022 ;; It's not in any window - return nil, meaning no frame has
|
|
|
1023 ;; preference.
|
|
|
1024 nil)
|
|
|
1025 (t
|
|
|
1026 ;; Otherwise, return the frame of the buffer's window.
|
|
|
1027 (window-frame w))))))))
|
|
|
1028
|
|
|
1029
|
|
|
1030 ;; The pre-display-buffer-function is called for effect, so this needs to
|
|
|
1031 ;; actually select the frame it wants. Fdisplay_buffer() takes notice of
|
|
|
1032 ;; changes to the selected frame.
|
|
|
1033 (defun get-frame-for-buffer (buffer &optional not-this-window-p on-frame)
|
|
|
1034 "Select and return a frame in which to display BUFFER.
|
|
272
|
1035 Normally, the buffer will simply be displayed in the selected frame.
|
|
209
|
1036 But if the symbol naming the major-mode of the buffer has a 'frame-name
|
|
|
1037 property (which should be a symbol), then the buffer will be displayed in
|
|
|
1038 a frame of that name. If there is no frame of that name, then one is
|
|
272
|
1039 created.
|
|
209
|
1040
|
|
|
1041 If the major-mode doesn't have a 'frame-name property, then the frame
|
|
|
1042 named by `get-frame-for-buffer-default-frame-name' will be used. If
|
|
|
1043 that is nil (the default) then the currently selected frame will used.
|
|
|
1044
|
|
|
1045 If the frame-name symbol has an 'instance-limit property (an integer)
|
|
|
1046 then each time a buffer of the mode in question is displayed, a new frame
|
|
|
1047 with that name will be created, until there are `instance-limit' of them.
|
|
|
1048 If instance-limit is 0, then a new frame will be created each time.
|
|
|
1049
|
|
272
|
1050 If a buffer is already displayed in a frame, then `instance-limit' is
|
|
209
|
1051 ignored, and that frame is used.
|
|
|
1052
|
|
|
1053 If the frame-name symbol has a 'frame-defaults property, then that is
|
|
|
1054 prepended to the `default-frame-plist' when creating a frame for the
|
|
|
1055 first time.
|
|
|
1056
|
|
272
|
1057 This function may be used as the value of `pre-display-buffer-function',
|
|
209
|
1058 to cause the display-buffer function and its callers to exhibit the above
|
|
|
1059 behavior."
|
|
|
1060 (let ((frame (get-frame-for-buffer-noselect
|
|
|
1061 buffer not-this-window-p on-frame)))
|
|
|
1062 (if (not (eq frame (selected-frame)))
|
|
|
1063 frame
|
|
|
1064 (select-frame frame)
|
|
|
1065 (or (frame-visible-p frame)
|
|
|
1066 ;; If the frame was already visible, just focus on it.
|
|
|
1067 ;; If it wasn't visible (it was just created, or it used
|
|
|
1068 ;; to be iconified) then uniconify, raise, etc.
|
|
|
1069 (make-frame-visible frame))
|
|
|
1070 frame)))
|
|
|
1071
|
|
|
1072 (defun frames-of-buffer (&optional buffer visible-only)
|
|
|
1073 "Return list of frames that BUFFER is currently being displayed on.
|
|
|
1074 If the buffer is being displayed on the currently selected frame, that frame
|
|
|
1075 is first in the list. VISIBLE-ONLY will only list non-iconified frames."
|
|
|
1076 (let ((list (windows-of-buffer buffer))
|
|
|
1077 (cur-frame (selected-frame))
|
|
|
1078 next-frame frames save-frame)
|
|
|
1079
|
|
|
1080 (while list
|
|
|
1081 (if (memq (setq next-frame (window-frame (car list)))
|
|
|
1082 frames)
|
|
|
1083 nil
|
|
|
1084 (if (eq cur-frame next-frame)
|
|
|
1085 (setq save-frame next-frame)
|
|
272
|
1086 (and
|
|
209
|
1087 (or (not visible-only)
|
|
|
1088 (frame-visible-p next-frame))
|
|
|
1089 (setq frames (append frames (list next-frame))))))
|
|
|
1090 (setq list (cdr list)))
|
|
|
1091
|
|
|
1092 (if save-frame
|
|
|
1093 (append (list save-frame) frames)
|
|
|
1094 frames)))
|
|
|
1095
|
|
|
1096 (defcustom temp-buffer-shrink-to-fit nil
|
|
|
1097 "*When non-nil resize temporary output buffers to minimize blank lines."
|
|
|
1098 :type 'boolean
|
|
|
1099 :group 'frames)
|
|
|
1100
|
|
|
1101 (defcustom temp-buffer-max-height .5
|
|
|
1102 "*Proportion of frame to use for temp windows."
|
|
|
1103 :type 'number
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1104 :group 'frames)
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1105
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1106 (defun show-temp-buffer-in-current-frame (buffer)
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1107 "For use as the value of temp-buffer-show-function:
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272
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1108 always displays the buffer in the selected frame, regardless of the behavior
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209
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1109 that would otherwise be introduced by the `pre-display-buffer-function', which
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1110 is normally set to `get-frame-for-buffer' (which see)."
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1111 (let ((pre-display-buffer-function nil)) ; turn it off, whatever it is
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1112 (let ((window (display-buffer buffer)))
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1113 (if (not (eq (last-nonminibuf-frame) (window-frame window)))
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1114 ;; only the pre-display-buffer-function should ever do this.
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1115 (error "display-buffer switched frames on its own!!"))
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1116 (setq minibuffer-scroll-window window)
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1117 (set-window-start window 1) ; obeys narrowing
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1118 (set-window-point window 1)
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1119 (when temp-buffer-shrink-to-fit
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1120 (let* ((temp-window-size (round (* temp-buffer-max-height
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1121 (frame-height (window-frame window)))))
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1122 (size (window-displayed-height window)))
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1123 (when (< size temp-window-size)
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1124 (enlarge-window (- temp-window-size size) nil window)))
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1125 (shrink-window-if-larger-than-buffer window))
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1126 nil)))
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1127
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1128 (setq pre-display-buffer-function 'get-frame-for-buffer)
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1129 (setq temp-buffer-show-function 'show-temp-buffer-in-current-frame)
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1130
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1131
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1132 ;; from Bob Weiner <bweiner@pts.mot.com>, modified by Ben Wing
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1133 (defun delete-other-frames (&optional frame)
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1134 "Delete all but FRAME (or the selected frame)."
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1135 (interactive)
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1136 (mapc 'delete-frame (delq (or frame (selected-frame)) (frame-list))))
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1137
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1138 ;; By adding primitives to directly access the window hierarchy,
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1139 ;; we can move many functions into Lisp. We do it this way
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1140 ;; because the implementations are simpler in Lisp, and because
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1141 ;; new functions like this can be added without requiring C
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1142 ;; additions.
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1143
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1144 (defun frame-utmost-window-2 (window position left-right-p major-end-p
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1145 minor-end-p)
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1146 ;; LEFT-RIGHT-P means we're looking for the leftmost or rightmost
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1147 ;; window, instead of the highest or lowest. In this case, we
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1148 ;; say that the "major axis" goes left-to-right instead of top-to-
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1149 ;; bottom. The "minor axis" always goes perpendicularly.
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1150 ;;
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1151 ;; If MAJOR-END-P is t, we're looking for a windows that abut the
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1152 ;; end (i.e. right or bottom) of the major axis, instead of the
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1153 ;; start.
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1154 ;;
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1155 ;; If MINOR-END-P is t, then we want to start counting from the
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1156 ;; end of the minor axis instead of the beginning.
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1157 ;;
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1158 ;; Here's the general idea: Imagine we're trying to count the number
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1159 ;; of windows that abut the top; call this function foo(). So, we
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1160 ;; start with the root window. If this is a vertical combination
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1161 ;; window, then foo() applied to the root window is the same as
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1162 ;; foo() applied to the first child. If the root is a horizontal
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1163 ;; combination window, then foo() applied to the root is the
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1164 ;; same as the sum of foo() applied to each of the children.
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1165 ;; Otherwise, the root window is a leaf window, and foo() is 1.
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1166 ;; Now it's clear that, each time foo() encounters a leaf window,
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1167 ;; it's encountering a different window that abuts the top.
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1168 ;; With a little examining, you can see that foo encounters the
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1169 ;; top-abutting windows in order from left to right. We can
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1170 ;; modify foo() to return the nth top-abutting window by simply
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1171 ;; keeping a global variable that is decremented each time
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1172 ;; foo() encounters a leaf window and would return 1. If the
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1173 ;; global counter gets to zero, we've encountered the window
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1174 ;; we were looking for, so we exit right away using a `throw'.
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1175 ;; Otherwise, we make sure that all normal paths return nil.
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1176
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1177 (let (child)
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1178 (cond ((setq child (if left-right-p
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1179 (window-first-hchild window)
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1180 (window-first-vchild window)))
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1181 (if major-end-p
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1182 (while (window-next-child child)
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1183 (setq child (window-next-child child))))
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1184 (frame-utmost-window-2 child position left-right-p major-end-p
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1185 minor-end-p))
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1186 ((setq child (if left-right-p
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1187 (window-first-vchild window)
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1188 (window-first-hchild window)))
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1189 (if minor-end-p
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1190 (while (window-next-child child)
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1191 (setq child (window-next-child child))))
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1192 (while child
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1193 (frame-utmost-window-2 child position left-right-p major-end-p
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1194 minor-end-p)
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1195 (setq child (if minor-end-p
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1196 (window-previous-child child)
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1197 (window-next-child child))))
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1198 nil)
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1199 (t
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1200 (setcar position (1- (car position)))
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1201 (if (= (car position) 0)
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1202 (throw 'fhw-exit window)
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1203 nil)))))
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1204
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1205 (defun frame-utmost-window-1 (frame position left-right-p major-end-p)
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1206 (let (minor-end-p)
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1207 (or frame (setq frame (selected-frame)))
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1208 (or position (setq position 0))
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1209 (if (>= position 0)
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1210 (setq position (1+ position))
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1211 (setq minor-end-p t)
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1212 (setq position (- position)))
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1213 (catch 'fhw-exit
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1214 ;; we use a cons here as a simple form of call-by-reference.
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1215 ;; scheme has "boxes" for the same purpose.
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1216 (frame-utmost-window-2 (frame-root-window frame) (list position)
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1217 left-right-p major-end-p minor-end-p))))
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1218
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1219
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1220 (defun frame-highest-window (&optional frame position)
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|
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1221 "Return the highest window on FRAME which is at POSITION.
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1222 If omitted, FRAME defaults to the currently selected frame.
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1223 POSITION is used to distinguish between multiple windows that abut
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1224 the top of the frame: 0 means the leftmost window abutting the
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1225 top of the frame, 1 the next-leftmost, etc. POSITION can also
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1226 be less than zero: -1 means the rightmost window abutting the
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|
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1227 top of the frame, -2 the next-rightmost, etc.
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|
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1228 If omitted, POSITION defaults to 0, i.e. the leftmost highest window.
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|
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1229 If there is no window at the given POSITION, return nil."
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|
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1230 (frame-utmost-window-1 frame position nil nil))
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|
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1231
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1232 (defun frame-lowest-window (&optional frame position)
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1233 "Return the lowest window on FRAME which is at POSITION.
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1234 If omitted, FRAME defaults to the currently selected frame.
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1235 POSITION is used to distinguish between multiple windows that abut
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1236 the bottom of the frame: 0 means the leftmost window abutting the
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|
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1237 bottom of the frame, 1 the next-leftmost, etc. POSITION can also
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1238 be less than zero: -1 means the rightmost window abutting the
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1239 bottom of the frame, -2 the next-rightmost, etc.
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1240 If omitted, POSITION defaults to 0, i.e. the leftmost lowest window.
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1241 If there is no window at the given POSITION, return nil."
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1242 (frame-utmost-window-1 frame position nil t))
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1243
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1244 (defun frame-leftmost-window (&optional frame position)
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|
|
1245 "Return the leftmost window on FRAME which is at POSITION.
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1246 If omitted, FRAME defaults to the currently selected frame.
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1247 POSITION is used to distinguish between multiple windows that abut
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1248 the left edge of the frame: 0 means the highest window abutting the
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1249 left edge of the frame, 1 the next-highest, etc. POSITION can also
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1250 be less than zero: -1 means the lowest window abutting the
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1251 left edge of the frame, -2 the next-lowest, etc.
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1252 If omitted, POSITION defaults to 0, i.e. the highest leftmost window.
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1253 If there is no window at the given POSITION, return nil."
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1254 (frame-utmost-window-1 frame position t nil))
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1255
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1256 (defun frame-rightmost-window (&optional frame position)
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|
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1257 "Return the rightmost window on FRAME which is at POSITION.
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1258 If omitted, FRAME defaults to the currently selected frame.
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1259 POSITION is used to distinguish between multiple windows that abut
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1260 the right edge of the frame: 0 means the highest window abutting the
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1261 right edge of the frame, 1 the next-highest, etc. POSITION can also
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1262 be less than zero: -1 means the lowest window abutting the
|
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1263 right edge of the frame, -2 the next-lowest, etc.
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1264 If omitted, POSITION defaults to 0, i.e. the highest rightmost window.
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1265 If there is no window at the given POSITION, return nil."
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1266 (frame-utmost-window-1 frame position t t))
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1267
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1268
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1269
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1270 ;; frame properties.
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1271
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1272 (defun set-frame-property (frame prop val)
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1273 "Set property PROP of FRAME to VAL. See `set-frame-properties'."
|
|
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1274 (set-frame-properties frame (list prop val)))
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|
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1275
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1276 (defun frame-height (&optional frame)
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|
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1277 "Return number of lines available for display on FRAME."
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|
|
1278 (frame-property frame 'height))
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|
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1279
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1280 (defun frame-width (&optional frame)
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1281 "Return number of columns available for display on FRAME."
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|
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1282 (frame-property frame 'width))
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1283
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1284 (put 'cursor-color 'frame-property-alias [text-cursor background])
|
|
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1285 (put 'modeline 'frame-property-alias 'has-modeline-p)
|
|
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1286
|
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1287
|
|
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1288 (provide 'frame)
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1289
|
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1290 ;;; frame.el ends here
|
