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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, 1994 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: FSF
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7 ;; Keywords: internal
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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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22 ;; along with XEmacs; see the file COPYING. If not, write to the Free
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23 ;; Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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24
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25 ;;; Synched up with: FSF 19.30.
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26
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27 ;;; Code:
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28
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29 ; No need for `frame-creation-function'.
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30
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31 ;;; The initial value given here for this must ask for a minibuffer.
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32 ;;; There must always exist a frame with a minibuffer, and after we
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33 ;;; delete the terminal frame, this will be the only frame.
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34 (defvar initial-frame-plist '(minibuffer t)
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35 "Plist of frame properties for creating the initial X window frame.
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36 You can set this in your `.emacs' file; for example,
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37 (setq initial-frame-plist '(top 1 left 1 width 80 height 55))
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38 Properties specified here supersede the values given in `default-frame-plist'.
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39 The format of this can also be an alist for backward compatibility.
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40
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41 If the value calls for a frame without a minibuffer, and you have not created
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42 a minibuffer frame on your own, one is created according to
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43 `minibuffer-frame-plist'.
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44
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45 You can specify geometry-related options for just the initial frame
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46 by setting this variable in your `.emacs' file; however, they won't
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47 take effect until Emacs reads `.emacs', which happens after first creating
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48 the frame. If you want the frame to have the proper geometry as soon
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49 as it appears, you need to use this three-step process:
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50 * Specify X resources to give the geometry you want.
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51 * Set `default-frame-plist' to override these options so that they
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52 don't affect subsequent frames.
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53 * Set `initial-frame-plist' in a way that matches the X resources,
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54 to override what you put in `default-frame-plist'.")
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55
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56 (defvar minibuffer-frame-plist '(width 80 height 2 menubar-visible-p nil
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57 default-toolbar-visible-p nil)
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58 "Plist of frame properties for initially creating a minibuffer frame.
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59 You can set this in your `.emacs' file; for example,
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60 (setq minibuffer-frame-plist '(top 1 left 1 width 80 height 2))
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61 Properties specified here supersede the values given in
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62 `default-frame-plist'.
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63 The format of this can also be an alist for backward compatibility.")
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64
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65 (defvar pop-up-frame-plist nil
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66 "Plist of frame properties used when creating pop-up frames.
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67 Pop-up frames are used for completions, help, and the like.
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68 This variable can be set in your init file, like this:
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69 (setq pop-up-frame-plist '(width 80 height 20))
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70 These supersede the values given in `default-frame-plist'.
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71 The format of this can also be an alist for backward compatibility.")
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72
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73 (setq pop-up-frame-function
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74 (function (lambda ()
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75 (make-frame pop-up-frame-plist))))
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76
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77 (defvar special-display-frame-plist '(height 14 width 80 unsplittable t)
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78 "*Plist of frame properties used when creating special frames.
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79 Special frames are used for buffers whose names are in
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80 `special-display-buffer-names' and for buffers whose names match
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81 one of the regular expressions in `special-display-regexps'.
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82 This variable can be set in your init file, like this:
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83 (setq special-display-frame-plist '(width 80 height 20))
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84 These supersede the values given in `default-frame-plist'.
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85 The format of this can also be an alist for backward compatibility.")
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86
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87 (defun safe-alist-to-plist (cruftiness)
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88 (if (consp (car cruftiness))
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89 (alist-to-plist cruftiness)
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90 cruftiness))
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91
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92 ;; Display BUFFER in its own frame, reusing an existing window if any.
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93 ;; Return the window chosen.
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94 ;; Currently we do not insist on selecting the window within its frame.
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95 ;; If ARGS is a plist, use it as a list of frame property specs.
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96 ;; #### Change, not compatible with FSF: This stuff is all so incredibly
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97 ;; junky anyway that I doubt it makes any difference.
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98 ;; If ARGS is a list whose car is t,
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99 ;; use (cadr ARGS) as a function to do the work.
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100 ;; Pass it BUFFER as first arg, and (cddr ARGS) gives the rest of the args.
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101 (defun special-display-popup-frame (buffer &optional args)
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102 ;; if we can't display simultaneous multiple frames, just return
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103 ;; nil and let the normal behavior take over.
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104 (and (device-on-window-system-p)
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105 (if (and args (eq t (car args)))
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106 (apply (cadr args) buffer (cddr args))
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107 (let ((window (get-buffer-window buffer t)))
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108 (if window
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109 ;; If we have a window already, make it visible.
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110 (let ((frame (window-frame window)))
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111 (make-frame-visible frame)
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112 (raise-frame frame)
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113 window)
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114 ;; If no window yet, make one in a new frame.
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115 (let ((frame
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116 (make-frame (append (safe-alist-to-plist args)
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117 (safe-alist-to-plist
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118 special-display-frame-plist)))))
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119 (set-window-buffer (frame-selected-window frame) buffer)
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120 (set-window-dedicated-p (frame-selected-window frame) t)
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121 (frame-selected-window frame)))))))
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122
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123 (setq special-display-function 'special-display-popup-frame)
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124
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125 ;;; Handle delete-frame events from the X server.
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126 ;(defun handle-delete-frame (event)
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127 ; (interactive "e")
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128 ; (let ((frame (posn-window (event-start event)))
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129 ; (i 0)
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130 ; (tail (frame-list)))
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131 ; (while tail
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132 ; (and (frame-visible-p (car tail))
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133 ; (not (eq (car tail) frame))
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134 ; (setq i (1+ i)))
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135 ; (setq tail (cdr tail)))
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136 ; (if (> i 0)
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137 ; (delete-frame frame t)
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138 ; (kill-emacs))))
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139
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140
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141 ;;;; Arrangement of frames at startup
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142
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143 ;;; 1) Load the window system startup file from the lisp library and read the
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144 ;;; high-priority arguments (-q and the like). The window system startup
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145 ;;; file should create any frames specified in the window system defaults.
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146 ;;;
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147 ;;; 2) If no frames have been opened, we open an initial text frame.
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148 ;;;
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149 ;;; 3) Once the init file is done, we apply any newly set properties
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150 ;;; in initial-frame-plist to the frame.
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151
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152 ;; These are now called explicitly at the proper times,
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153 ;; since that is easier to understand.
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154 ;; Actually using hooks within Emacs is bad for future maintenance. --rms.
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155 ;; (add-hook 'before-init-hook 'frame-initialize)
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156 ;; (add-hook 'window-setup-hook 'frame-notice-user-settings)
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157
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158 ;;; If we create the initial frame, this is it.
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159 (defvar frame-initial-frame nil)
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160
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161 ;; Record the properties used in frame-initialize to make the initial frame.
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162 (defvar frame-initial-frame-plist)
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163
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164 (defvar frame-initial-geometry-arguments nil)
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165
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166 (defun canonicalize-frame-plists ()
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167 (setq initial-frame-plist (safe-alist-to-plist initial-frame-plist))
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168 (setq default-frame-plist (safe-alist-to-plist default-frame-plist)))
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169
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170 ;;; startup.el calls this function before loading the user's init
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171 ;;; file - if there is no frame with a minibuffer open now, create
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172 ;;; one to display messages while loading the init file.
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173 (defun frame-initialize ()
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174 ;; In batch mode, we actually use the initial terminal device for output.
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175 (canonicalize-frame-plists)
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176 (if (not (noninteractive))
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177 (progn
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178 ;; Don't call select-frame here - focus is a matter of WM policy.
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179
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180 ;; If there is no frame with a minibuffer besides the terminal
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181 ;; frame, then we need to create the opening frame. Make sure
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182 ;; it has a minibuffer, but let initial-frame-plist omit the
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183 ;; minibuffer spec.
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184 (or (delq terminal-frame (minibuffer-frame-list))
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185 (progn
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186 (setq frame-initial-frame-plist
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187 (append initial-frame-plist default-frame-plist))
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188 ;; FSFmacs has scroll-bar junk here that we don't need.
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189 (setq default-minibuffer-frame
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190 (setq frame-initial-frame
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191 (make-frame initial-frame-plist
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192 (car (delq terminal-device
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193 (device-list))))))
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194 ;; Delete any specifications for window geometry properties
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195 ;; so that we won't reapply them in frame-notice-user-settings.
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196 ;; It would be wrong to reapply them then,
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197 ;; because that would override explicit user resizing.
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198 (setq initial-frame-plist
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199 (frame-remove-geometry-props initial-frame-plist))))
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200 ;; At this point, we know that we have a frame open, so we
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201 ;; can delete the terminal device.
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202 (delete-device terminal-device)
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203 (setq terminal-frame nil)
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204
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205 ;; FSFmacs sets frame-creation-function here, but no need.
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206 )))
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207
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208 ;;; startup.el calls this function after loading the user's init
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209 ;;; file. Now default-frame-plist and initial-frame-plist contain
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210 ;;; information to which we must react; do what needs to be done.
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211 (defun frame-notice-user-settings ()
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212
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213 ;; FSFmacs has menu-bar junk here that we don't need.
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214
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215 (canonicalize-frame-plists)
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216
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217 ;; Creating and deleting frames may shift the selected frame around,
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218 ;; and thus the current buffer. Protect against that. We don't
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219 ;; want to use save-excursion here, because that may also try to set
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220 ;; the buffer of the selected window, which fails when the selected
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221 ;; window is the minibuffer.
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222 (let ((old-buffer (current-buffer)))
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223
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224 ;; If the initial frame is still around, apply initial-frame-plist
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225 ;; and default-frame-plist to it.
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226 (if (frame-live-p frame-initial-frame)
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227
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228 ;; The initial frame we create above always has a minibuffer.
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229 ;; If the user wants to remove it, or make it a minibuffer-only
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230 ;; frame, then we'll have to delete the current frame and make a
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231 ;; new one; you can't remove or add a root window to/from an
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232 ;; existing frame.
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233 ;;
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234 ;; NOTE: default-frame-plist was nil when we created the
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235 ;; existing frame. We need to explicitly include
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236 ;; default-frame-plist in the properties of the screen we
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237 ;; create here, so that its new value, gleaned from the user's
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238 ;; .emacs file, will be applied to the existing screen.
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239 (if (not (eq (car
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240 (or (and (lax-plist-member
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241 initial-frame-plist 'minibuffer)
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242 (list (lax-plist-get initial-frame-plist
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243 'minibuffer)))
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244 (and (lax-plist-member default-frame-plist
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245 'minibuffer)
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246 (list (lax-plist-get default-frame-plist
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247 'minibuffer)))
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248 '(t)))
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249 t))
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250 ;; Create the new frame.
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251 (let (props
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252 )
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253 ;; If the frame isn't visible yet, wait till it is.
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254 ;; If the user has to position the window,
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255 ;; Emacs doesn't know its real position until
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256 ;; the frame is seen to be visible.
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257
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258 (if (frame-property frame-initial-frame 'initially-unmapped)
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259 nil
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260 (while (not (frame-visible-p frame-initial-frame))
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261 (sleep-for 1)))
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262 (setq props (frame-properties frame-initial-frame))
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263 ;; Get rid of `name' unless it was specified explicitly before.
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264 (or (lax-plist-member frame-initial-frame-plist 'name)
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265 (setq props (lax-plist-remprop props 'name)))
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266 (setq props (append initial-frame-plist default-frame-plist
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267 props
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268 nil))
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269 ;; Get rid of `reverse', because that was handled
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270 ;; when we first made the frame.
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271 (laxputf props 'reverse nil)
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272 ;; Get rid of `window-id', otherwise make-frame will
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273 ;; think we're trying to setup an external widget.
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274 (laxremf props 'window-id)
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275 (if (lax-plist-member frame-initial-geometry-arguments 'height)
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276 (laxremf props 'height))
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277 (if (lax-plist-member frame-initial-geometry-arguments 'width)
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278 (laxremf props 'width))
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279 (if (lax-plist-member frame-initial-geometry-arguments 'left)
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280 (laxremf props 'left))
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281 (if (lax-plist-member frame-initial-geometry-arguments 'top)
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282 (laxremf props 'top))
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283
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284 ;; Now create the replacement initial frame.
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285 (make-frame
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286 ;; Use the geometry args that created the existing
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287 ;; frame, rather than the props we get for it.
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288 (append '(user-size t user-position t)
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289 frame-initial-geometry-arguments
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290 props))
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291 ;; The initial frame, which we are about to delete, may be
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292 ;; the only frame with a minibuffer. If it is, create a
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293 ;; new one.
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294 (or (delq frame-initial-frame (minibuffer-frame-list))
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295 (make-initial-minibuffer-frame nil))
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296
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297 ;; If the initial frame is serving as a surrogate
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298 ;; minibuffer frame for any frames, we need to wean them
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299 ;; onto a new frame. The default-minibuffer-frame
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300 ;; variable must be handled similarly.
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301 (let ((users-of-initial
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302 (filtered-frame-list
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303 #'(lambda (frame)
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304 (and (not (eq frame frame-initial-frame))
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305 (eq (window-frame
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306 (minibuffer-window frame))
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307 frame-initial-frame))))))
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308 (if (or users-of-initial
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309 (eq default-minibuffer-frame frame-initial-frame))
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310
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311 ;; Choose an appropriate frame. Prefer frames which
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312 ;; are only minibuffers.
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313 (let* ((new-surrogate
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314 (car
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315 (or (filtered-frame-list
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316 #'(lambda (frame)
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317 (eq 'only
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318 (frame-property frame 'minibuffer))))
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319 (minibuffer-frame-list))))
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320 (new-minibuffer (minibuffer-window new-surrogate)))
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321
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322 (if (eq default-minibuffer-frame frame-initial-frame)
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323 (setq default-minibuffer-frame new-surrogate))
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324
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325 ;; Wean the frames using frame-initial-frame as
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326 ;; their minibuffer frame.
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327 (mapcar
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328 #'
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329 (lambda (frame)
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330 (set-frame-property frame 'minibuffer
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331 new-minibuffer))
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332 users-of-initial))))
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333
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334 ;; Redirect events enqueued at this frame to the new frame.
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335 ;; Is this a good idea?
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336 ;; Probably not, since this whole redirect-frame-focus
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337 ;; stuff is a load of trash, and so is this function we're in.
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338 ;; --ben
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339 ;(redirect-frame-focus frame-initial-frame new)
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340
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341 ;; Finally, get rid of the old frame.
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342 (delete-frame frame-initial-frame t))
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343
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344 ;; Otherwise, we don't need all that rigamarole; just apply
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345 ;; the new properties.
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346 (let (newprops allprops tail)
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347 (setq allprops (append initial-frame-plist
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348 default-frame-plist))
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349 (if (lax-plist-member frame-initial-geometry-arguments 'height)
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350 (laxremf allprops 'height))
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351 (if (lax-plist-member frame-initial-geometry-arguments 'width)
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352 (remf allprops 'width))
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353 (if (lax-plist-member frame-initial-geometry-arguments 'left)
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354 (laxremf allprops 'left))
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355 (if (lax-plist-member frame-initial-geometry-arguments 'top)
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356 (laxremf allprops 'top))
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357 (setq tail allprops)
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358 ;; Find just the props that have changed since we first
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359 ;; made this frame. Those are the ones actually set by
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360 ;; the init file. For those props whose values we already knew
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361 ;; (such as those spec'd by command line options)
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362 ;; it is undesirable to specify the parm again
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363 ;; once the user has seen the frame and been able to alter it
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364 ;; manually.
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365 (while tail
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366 (let (newval oldval)
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367 (setq oldval (lax-plist-get frame-initial-frame-plist
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368 (car tail)))
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369 (setq newval (lax-plist-get allprops (car tail)))
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370 (or (eq oldval newval)
|
|
|
371 (laxputf newprops (car tail) newval)))
|
|
|
372 (setq tail (cddr tail)))
|
|
|
373 (set-frame-properties frame-initial-frame newprops)
|
|
|
374 ;silly FSFmacs junk
|
|
|
375 ;if (lax-plist-member newprops 'font)
|
|
|
376 ; (frame-update-faces frame-initial-frame))
|
|
|
377
|
|
|
378 )))
|
|
|
379
|
|
|
380 ;; Restore the original buffer.
|
|
|
381 (set-buffer old-buffer)
|
|
|
382
|
|
|
383 ;; Make sure the initial frame can be GC'd if it is ever deleted.
|
|
|
384 ;; Make sure frame-notice-user-settings does nothing if called twice.
|
|
|
385 (setq frame-initial-frame nil)))
|
|
|
386
|
|
|
387 (defun make-initial-minibuffer-frame (device)
|
|
|
388 (let ((props (append '(minibuffer only)
|
|
|
389 (safe-alist-to-plist minibuffer-frame-plist))))
|
|
|
390 (make-frame props device)))
|
|
|
391
|
|
|
392
|
|
|
393 ;;;; Creation of additional frames, and other frame miscellanea
|
|
|
394
|
|
|
395 (defun get-other-frame ()
|
|
|
396 "Return some frame other than the current frame, creating one if necessary."
|
|
|
397 (let* ((this (selected-frame))
|
|
|
398 ;; search visible frames first
|
|
|
399 (next (next-frame this 'visible-nomini)))
|
|
|
400 ;; then search iconified frames
|
|
|
401 (if (eq this next)
|
|
|
402 (setq next (next-frame 'visible-iconic-nomini)))
|
|
|
403 (if (eq this next)
|
|
|
404 ;; otherwise, make a new frame
|
|
|
405 (make-frame)
|
|
|
406 next)))
|
|
|
407
|
|
|
408 (defun next-multiframe-window ()
|
|
|
409 "Select the next window, regardless of which frame it is on."
|
|
|
410 (interactive)
|
|
|
411 (select-window (next-window (selected-window)
|
|
|
412 (> (minibuffer-depth) 0)
|
|
|
413 t)))
|
|
|
414
|
|
|
415 (defun previous-multiframe-window ()
|
|
|
416 "Select the previous window, regardless of which frame it is on."
|
|
|
417 (interactive)
|
|
|
418 (select-window (previous-window (selected-window)
|
|
|
419 (> (minibuffer-depth) 0)
|
|
|
420 t)))
|
|
|
421
|
|
|
422 (defun make-frame-on-device (type connection &optional props)
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|
|
423 "Create a frame of type TYPE on CONNECTION.
|
|
|
424 TYPE should be a symbol naming the device type, i.e. one of
|
|
|
425
|
|
|
426 x An X display. CONNECTION should be a standard display string
|
|
|
427 such as \"unix:0\", or nil for the display specified on the
|
|
|
428 command line or in the DISPLAY environment variable. Only if
|
|
|
429 support for X was compiled into XEmacs.
|
|
|
430 tty A standard TTY connection or terminal. CONNECTION should be
|
|
|
431 a TTY device name such as \"/dev/ttyp2\" (as determined by
|
|
|
432 the Unix command `tty') or nil for XEmacs' standard input
|
|
|
433 and output (usually the TTY in which XEmacs started). Only
|
|
|
434 if support for TTY's was compiled into XEmacs.
|
|
|
435 ns A connection to a machine running the NeXTstep windowing
|
|
|
436 system. Not currently implemented.
|
|
|
437 win32 A connection to a machine running Microsoft Windows NT or
|
|
|
438 Windows 95. Not currently implemented.
|
|
|
439 pc A direct-write MS-DOS frame. Not currently implemented.
|
|
|
440
|
|
|
441 PROPS should be an plist of properties, as in the call to `make-frame'.
|
|
|
442
|
|
|
443 If a connection to CONNECTION already exists, it is reused; otherwise,
|
|
|
444 a new connection is opened."
|
|
|
445 (make-frame props (make-device type connection props)))
|
|
|
446
|
|
|
447 ;; Alias, kept temporarily.
|
|
|
448 (defalias 'new-frame 'make-frame)
|
|
|
449
|
|
|
450 ; FSFmacs has make-frame here. We have it in C, so no need for
|
|
|
451 ; frame-creation-function.
|
|
|
452
|
|
|
453 (defun filtered-frame-list (predicate &optional device)
|
|
|
454 "Return a list of all live frames which satisfy PREDICATE.
|
|
|
455 If optional second arg DEVICE is non-nil, restrict the frames
|
|
|
456 returned to that device."
|
|
|
457 (let ((frames (if device (device-frame-list device)
|
|
|
458 (frame-list)))
|
|
|
459 good-frames)
|
|
|
460 (while (consp frames)
|
|
|
461 (if (funcall predicate (car frames))
|
|
|
462 (setq good-frames (cons (car frames) good-frames)))
|
|
|
463 (setq frames (cdr frames)))
|
|
|
464 good-frames))
|
|
|
465
|
|
|
466 (defun minibuffer-frame-list (&optional device)
|
|
|
467 "Return a list of all frames with their own minibuffers.
|
|
|
468 If optional second arg DEVICE is non-nil, restrict the frames
|
|
|
469 returned to that device."
|
|
|
470 (filtered-frame-list
|
|
|
471 #'(lambda (frame)
|
|
|
472 (eq frame (window-frame (minibuffer-window frame))))
|
|
|
473 device))
|
|
|
474
|
|
|
475 (defun frame-minibuffer-only-p (frame)
|
|
|
476 "Return non-nil if FRAME is a minibuffer-only frame."
|
|
|
477 (eq (frame-root-window frame) (minibuffer-window frame)))
|
|
|
478
|
|
|
479 (defun frame-remove-geometry-props (plist)
|
|
|
480 "Return the property list PLIST, but with geometry specs removed.
|
|
|
481 This deletes all bindings in PLIST for `top', `left', `width',
|
|
|
482 `height', `user-size' and `user-position' properties.
|
|
|
483 Emacs uses this to avoid overriding explicit moves and resizings from
|
|
|
484 the user during startup."
|
|
|
485 (setq plist (canonicalize-lax-plist (copy-sequence plist)))
|
|
|
486 (mapcar #'(lambda (propname)
|
|
|
487 (if (lax-plist-member plist propname)
|
|
|
488 (progn
|
|
|
489 (setq frame-initial-geometry-arguments
|
|
|
490 (cons propname
|
|
|
491 (cons (lax-plist-get plist propname)
|
|
|
492 frame-initial-geometry-arguments)))
|
|
|
493 (setq plist (lax-plist-remprop plist propname)))))
|
|
|
494 '(height width top left user-size user-position))
|
|
|
495 plist)
|
|
|
496
|
|
|
497 (defun other-frame (arg)
|
|
|
498 "Select the ARG'th different visible frame, and raise it.
|
|
|
499 All frames are arranged in a cyclic order.
|
|
|
500 This command selects the frame ARG steps away in that order.
|
|
|
501 A negative ARG moves in the opposite order."
|
|
|
502 (interactive "p")
|
|
|
503 (let ((frame (selected-frame)))
|
|
|
504 (while (> arg 0)
|
|
|
505 (setq frame (next-frame frame 'visible-nomini))
|
|
|
506 (setq arg (1- arg)))
|
|
|
507 (while (< arg 0)
|
|
|
508 (setq frame (previous-frame frame 'visible-nomini))
|
|
|
509 (setq arg (1+ arg)))
|
|
|
510 (raise-frame frame)
|
|
|
511 (select-frame frame)
|
|
|
512 ;this is a bad idea; you should in general never warp the
|
|
|
513 ;pointer unless the user asks for this. Furthermore,
|
|
|
514 ;our version of `set-mouse-position' takes a window,
|
|
|
515 ;not a frame.
|
|
|
516 ;(set-mouse-position (selected-frame) (1- (frame-width)) 0)
|
|
|
517 ;some weird FSFmacs randomness
|
|
|
518 ;(if (fboundp 'unfocus-frame)
|
|
|
519 ; (unfocus-frame))))
|
|
|
520 ))
|
|
|
521
|
|
|
522 ;; XEmacs-added utility functions
|
|
|
523
|
|
|
524 ; this is in C in FSFmacs
|
|
|
525 (defun frame-list ()
|
|
|
526 "Return a list of all frames on all devices/consoles."
|
|
|
527 (apply 'append (mapcar 'device-frame-list (device-list))))
|
|
|
528
|
|
|
529 (defun frame-type (&optional frame)
|
|
|
530 "Return the type of the specified frame (e.g. `x' or `tty').
|
|
|
531 This is equivalent to the type of the frame's device.
|
|
|
532 Value is `tty' for a tty frame (a character-only terminal),
|
|
|
533 `x' for a frame that is an X window,
|
|
|
534 `ns' for a frame that is a NeXTstep window (not yet implemeted),
|
|
|
535 `win32' for a frame that is a Windows or Windows NT window (not yet
|
|
|
536 implemented),
|
|
|
537 `pc' for a frame that is a direct-write MS-DOS frame (not yet implemented),
|
|
|
538 `stream' for a stream frame (which acts like a stdio stream), and
|
|
|
539 `dead' for a deleted frame."
|
|
|
540 (or frame (setq frame (selected-frame)))
|
|
|
541 (if (not (frame-live-p frame)) 'dead
|
|
|
542 (device-type (frame-device frame))))
|
|
|
543
|
|
|
544 (defun device-or-frame-p (object)
|
|
|
545 "Return non-nil if OBJECT is a device or frame."
|
|
|
546 (or (devicep object)
|
|
|
547 (framep object)))
|
|
|
548
|
|
|
549 (defun device-or-frame-type (device-or-frame)
|
|
|
550 "Return the type (e.g. `x' or `tty') of DEVICE-OR-FRAME.
|
|
|
551 DEVICE-OR-FRAME should be a device or a frame object. See `device-type'
|
|
|
552 for a description of the possible types."
|
|
|
553 (if (devicep device-or-frame)
|
|
|
554 (device-type device-or-frame)
|
|
|
555 (frame-type device-or-frame)))
|
|
|
556
|
|
|
557 (defun fw-frame (obj)
|
|
|
558 "Given a frame or window, return the associated frame.
|
|
|
559 Return nil otherwise."
|
|
|
560 (cond ((windowp obj) (window-frame obj))
|
|
|
561 ((framep obj) obj)
|
|
|
562 (t nil)))
|
|
|
563
|
|
|
564
|
|
|
565 ;;;; Frame configurations
|
|
|
566
|
|
|
567 (defun current-frame-configuration ()
|
|
|
568 "Return a list describing the positions and states of all frames.
|
|
|
569 Its car is `frame-configuration'.
|
|
|
570 Each element of the cdr is a list of the form (FRAME PLIST WINDOW-CONFIG),
|
|
|
571 where
|
|
|
572 FRAME is a frame object,
|
|
|
573 PLIST is a property list specifying some of FRAME's properties, and
|
|
|
574 WINDOW-CONFIG is a window configuration object for FRAME."
|
|
|
575 (cons 'frame-configuration
|
|
|
576 (mapcar (function
|
|
|
577 (lambda (frame)
|
|
|
578 (list frame
|
|
|
579 (frame-properties frame)
|
|
|
580 (current-window-configuration frame))))
|
|
|
581 (frame-list))))
|
|
|
582
|
|
|
583 (defun set-frame-configuration (configuration &optional nodelete)
|
|
|
584 "Restore the frames to the state described by CONFIGURATION.
|
|
|
585 Each frame listed in CONFIGURATION has its position, size, window
|
|
|
586 configuration, and other properties set as specified in CONFIGURATION.
|
|
|
587 Ordinarily, this function deletes all existing frames not
|
|
|
588 listed in CONFIGURATION. But if optional second argument NODELETE
|
|
|
589 is given and non-nil, the unwanted frames are iconified instead."
|
|
|
590 (or (frame-configuration-p configuration)
|
|
|
591 (signal 'wrong-type-argument
|
|
|
592 (list 'frame-configuration-p configuration)))
|
|
|
593 (let ((config-plist (cdr configuration))
|
|
|
594 frames-to-delete)
|
|
|
595 (mapcar (function
|
|
|
596 (lambda (frame)
|
|
|
597 (let ((properties (assq frame config-plist)))
|
|
|
598 (if properties
|
|
|
599 (progn
|
|
|
600 (set-frame-properties
|
|
|
601 frame
|
|
|
602 ;; Since we can't set a frame's minibuffer status,
|
|
|
603 ;; we might as well omit the parameter altogether.
|
|
|
604 (lax-plist-remprop (nth 1 properties) 'minibuffer))
|
|
|
605 (set-window-configuration (nth 2 properties)))
|
|
|
606 (setq frames-to-delete (cons frame frames-to-delete))))))
|
|
|
607 (frame-list))
|
|
|
608 (if nodelete
|
|
|
609 ;; Note: making frames invisible here was tried
|
|
|
610 ;; but led to some strange behavior--each time the frame
|
|
|
611 ;; was made visible again, the window manager asked afresh
|
|
|
612 ;; for where to put it.
|
|
|
613 (mapcar 'iconify-frame frames-to-delete)
|
|
|
614 (mapcar 'delete-frame frames-to-delete))))
|
|
|
615
|
|
|
616 ; this function is in subr.el in FSFmacs.
|
|
|
617 ; that's because they don't always include frame.el, while we do.
|
|
|
618
|
|
|
619 (defun frame-configuration-p (object)
|
|
|
620 "Return non-nil if OBJECT seems to be a frame configuration.
|
|
|
621 Any list whose car is `frame-configuration' is assumed to be a frame
|
|
|
622 configuration."
|
|
|
623 (and (consp object)
|
|
|
624 (eq (car object) 'frame-configuration)))
|
|
|
625
|
|
|
626
|
|
|
627 ;; FSFmacs has functions `frame-width', `frame-height' here.
|
|
|
628 ;; We have them in C.
|
|
|
629
|
|
|
630 ;; FSFmacs has weird functions `set-default-font', `set-background-color',
|
|
|
631 ;; `set-foreground-color' here. They don't do sensible things like
|
|
|
632 ;; set faces; instead they set frame properties (??!!) and call
|
|
|
633 ;; useless functions such as `frame-update-faces' and
|
|
|
634 ;; `frame-update-face-colors'.
|
|
|
635
|
|
|
636 ;; FSFmacs has functions `set-cursor-color', `set-mouse-color', and
|
|
|
637 ;; `set-border-color', which refer to frame properties.
|
|
|
638 ;; #### We need to use specifiers here.
|
|
|
639
|
|
|
640 ;(defun auto-raise-mode (arg)
|
|
|
641 ; "Toggle whether or not the selected frame should auto-raise.
|
|
|
642 ;With arg, turn auto-raise mode on if and only if arg is positive.
|
|
|
643 ;Note that this controls Emacs's own auto-raise feature.
|
|
|
644 ;Some window managers allow you to enable auto-raise for certain windows.
|
|
|
645 ;You can use that for Emacs windows if you wish, but if you do,
|
|
|
646 ;that is beyond the control of Emacs and this command has no effect on it."
|
|
|
647 ; (interactive "P")
|
|
|
648 ; (if (null arg)
|
|
|
649 ; (setq arg
|
|
|
650 ; (if (frame-property (selected-frame) 'auto-raise)
|
|
|
651 ; -1 1)))
|
|
|
652 ; (set-frame-property (selected-frame) 'auto-raise (> arg 0)))
|
|
|
653
|
|
|
654 ;(defun auto-lower-mode (arg)
|
|
|
655 ; "Toggle whether or not the selected frame should auto-lower.
|
|
|
656 ;With arg, turn auto-lower mode on if and only if arg is positive.
|
|
|
657 ;Note that this controls Emacs's own auto-lower feature.
|
|
|
658 ;Some window managers allow you to enable auto-lower for certain windows.
|
|
|
659 ;You can use that for Emacs windows if you wish, but if you do,
|
|
|
660 ;that is beyond the control of Emacs and this command has no effect on it."
|
|
|
661 ; (interactive "P")
|
|
|
662 ; (if (null arg)
|
|
|
663 ; (setq arg
|
|
|
664 ; (if (frame-property (selected-frame) 'auto-lower)
|
|
|
665 ; -1 1)))
|
|
|
666 ; (set-frame-property (selected-frame) 'auto-lower (> arg 0)))
|
|
|
667
|
|
|
668 ;; FSFmacs has silly functions `toggle-scroll-bar',
|
|
|
669 ;; `toggle-horizontal-scrollbar'
|
|
|
670
|
|
|
671 ;;; Iconifying emacs.
|
|
|
672 ;;;
|
|
|
673 ;;; The function iconify-emacs replaces every non-iconified emacs window
|
|
|
674 ;;; with a *single* icon. Iconified emacs windows are left alone. When
|
|
|
675 ;;; emacs is in this globally-iconified state, de-iconifying any emacs icon
|
|
|
676 ;;; will uniconify all frames that were visible, and iconify all frames
|
|
|
677 ;;; that were not. This is done by temporarily changing the value of
|
|
|
678 ;;; `map-frame-hook' to `deiconify-emacs' (which should never be called
|
|
|
679 ;;; except from the map-frame-hook while emacs is iconified).
|
|
|
680 ;;;
|
|
|
681 ;;; The title of the icon representing all emacs frames is controlled by
|
|
|
682 ;;; the variable `icon-name'. This is done by temporarily changing the
|
|
|
683 ;;; value of `frame-icon-title-format'. Unfortunately, this changes the
|
|
|
684 ;;; titles of all emacs icons, not just the "big" icon.
|
|
|
685 ;;;
|
|
|
686 ;;; It would be nice if existing icons were removed and restored by
|
|
|
687 ;;; iconifying the emacs process, but I couldn't make that work yet.
|
|
|
688
|
|
|
689 (defvar icon-name nil) ; set this at run time, not load time.
|
|
|
690
|
|
|
691 (defvar iconification-data nil)
|
|
|
692
|
|
|
693 (defun iconify-emacs ()
|
|
|
694 "Replace every non-iconified FRAME with a *single* icon.
|
|
|
695 Iconified frames are left alone. When XEmacs is in this
|
|
|
696 globally-iconified state, de-iconifying any emacs icon will uniconify
|
|
|
697 all frames that were visible, and iconify all frames that were not."
|
|
|
698 (interactive)
|
|
|
699 (if iconification-data (error "already iconified?"))
|
|
|
700 (let* ((frames (frame-list))
|
|
|
701 (rest frames)
|
|
|
702 (me (selected-frame))
|
|
|
703 frame)
|
|
|
704 (while rest
|
|
|
705 (setq frame (car rest))
|
|
|
706 (setcar rest (cons frame (frame-visible-p frame)))
|
|
|
707 ; (if (memq (cdr (car rest)) '(icon nil))
|
|
|
708 ; (progn
|
|
|
709 ; (make-frame-visible frame) ; deiconify, and process the X event
|
|
|
710 ; (sleep-for 500 t) ; process X events; I really want to XSync() here
|
|
|
711 ; ))
|
|
|
712 (or (eq frame me) (make-frame-invisible frame))
|
|
|
713 (setq rest (cdr rest)))
|
|
|
714 (or (boundp 'map-frame-hook) (setq map-frame-hook nil))
|
|
|
715 (or icon-name
|
|
|
716 (setq icon-name (concat invocation-name " @ " (system-name))))
|
|
|
717 (setq iconification-data
|
|
|
718 (list frame-icon-title-format map-frame-hook frames)
|
|
|
719 frame-icon-title-format icon-name
|
|
|
720 map-frame-hook 'deiconify-emacs)
|
|
|
721 (iconify-frame me)))
|
|
|
722
|
|
|
723 (defun deiconify-emacs (&optional ignore)
|
|
|
724 (or iconification-data (error "not iconified?"))
|
|
|
725 (setq frame-icon-title-format (car iconification-data)
|
|
|
726 map-frame-hook (car (cdr iconification-data))
|
|
|
727 iconification-data (car (cdr (cdr iconification-data))))
|
|
|
728 (while iconification-data
|
|
|
729 (let ((visibility (cdr (car iconification-data))))
|
|
|
730 (cond ((eq visibility 't)
|
|
|
731 (make-frame-visible (car (car iconification-data))))
|
|
|
732 ; (t ;; (eq visibility 'icon)
|
|
|
733 ; (make-frame-visible (car (car iconification-data)))
|
|
|
734 ; (sleep-for 500 t) ; process X events; I really want to XSync() here
|
|
|
735 ; (iconify-frame (car (car iconification-data))))
|
|
|
736 ;; (t nil)
|
|
|
737 ))
|
|
|
738 (setq iconification-data (cdr iconification-data))))
|
|
|
739
|
|
|
740 (defun suspend-or-iconify-emacs ()
|
|
|
741 "Calls iconify-emacs if frame is an X frame, otherwise calls suspend-emacs"
|
|
|
742 (interactive)
|
|
|
743 (if (eq (frame-type (selected-frame)) 'x)
|
|
|
744 (iconify-emacs)
|
|
|
745 (suspend-emacs)))
|
|
|
746
|
|
|
747
|
|
|
748 ;;; auto-raise and auto-lower
|
|
|
749
|
|
|
750 (defvar auto-raise-frame nil
|
|
|
751 "*If true, frames will be raised to the top when selected.
|
|
|
752 Under X, most ICCCM-compliant window managers will have an option to do this
|
|
|
753 for you, but this variable is provided in case you're using a broken WM.")
|
|
|
754
|
|
|
755 (defvar auto-lower-frame nil
|
|
|
756 "*If true, frames will be lowered to the bottom when no longer selected.
|
|
|
757 Under X, most ICCCM-compliant window managers will have an option to do this
|
|
|
758 for you, but this variable is provided in case you're using a broken WM.")
|
|
|
759
|
|
|
760 (defun default-select-frame-hook ()
|
|
|
761 "Implements the `auto-raise-frame' variable.
|
|
|
762 For use as the value of `select-frame-hook'."
|
|
|
763 (if auto-raise-frame (raise-frame (selected-frame))))
|
|
|
764
|
|
|
765 (defun default-deselect-frame-hook ()
|
|
|
766 "Implements the `auto-lower-frame' variable.
|
|
|
767 For use as the value of `deselect-frame-hook'."
|
|
|
768 (if auto-lower-frame (lower-frame (selected-frame))))
|
|
|
769
|
|
|
770 (or select-frame-hook
|
|
|
771 (add-hook 'select-frame-hook 'default-select-frame-hook))
|
|
|
772
|
|
|
773 (or deselect-frame-hook
|
|
|
774 (add-hook 'deselect-frame-hook 'default-deselect-frame-hook))
|
|
|
775
|
|
2
|
776 (defun default-drag-and-drop-functions (frame filepath &optional data)
|
|
0
|
777 "Implements the `drag-and-drop-functions' variable.
|
|
|
778 For use as the value of `drag-and-drop-functions'.
|
|
2
|
779 This default simply pops up the file in the selected frame or,
|
|
|
780 if the dragged object is a buffer, inserts it at point."
|
|
|
781 (if data
|
|
|
782 (insert data)
|
|
|
783 (let ((x pop-up-windows))
|
|
|
784 (setq pop-up-windows nil)
|
|
|
785 (pop-to-buffer (find-file-noselect filepath) nil frame)
|
|
|
786 (make-frame-visible frame)
|
|
|
787 (setq pop-up-windows x))))
|
|
0
|
788
|
|
|
789 (and (boundp 'drag-and-drop-functions)
|
|
|
790 (or drag-and-drop-functions
|
|
|
791 (add-hook 'drag-and-drop-functions 'default-drag-and-drop-functions)))
|
|
|
792
|
|
|
793
|
|
|
794 ;;; Application-specific frame-management
|
|
|
795
|
|
|
796 (defvar get-frame-for-buffer-default-frame-name nil
|
|
|
797 "The default frame to select; see doc of `get-frame-for-buffer'.")
|
|
|
798
|
|
|
799 (defvar get-frame-for-buffer-default-instance-limit nil)
|
|
|
800
|
|
|
801 (defun get-frame-name-for-buffer (buffer)
|
|
|
802 (let ((mode (and (get-buffer buffer)
|
|
|
803 (save-excursion (set-buffer buffer)
|
|
|
804 major-mode))))
|
|
|
805 (or (get mode 'frame-name)
|
|
|
806 get-frame-for-buffer-default-frame-name)))
|
|
|
807
|
|
|
808
|
|
|
809 (defun get-frame-for-buffer-make-new-frame (buffer &optional frame-name)
|
|
|
810 (let* ((fr (make-frame (and frame-name (list (cons 'name frame-name)))))
|
|
|
811 (w (frame-root-window fr)))
|
|
|
812 ;;
|
|
|
813 ;; Make the one buffer being displayed in this newly created
|
|
|
814 ;; frame be the buffer of interest, instead of something
|
|
|
815 ;; random, so that it won't be shown in two-window mode.
|
|
|
816 ;; Avoid calling switch-to-buffer here, since that's something
|
|
|
817 ;; people might want to call this routine from.
|
|
|
818 ;;
|
|
|
819 ;; (If the root window doesn't have a buffer, then that means
|
|
|
820 ;; there is more than one window on the frame, which can only
|
|
|
821 ;; happen if the user has done something funny on the frame-
|
|
|
822 ;; creation-hook. If that's the case, leave it alone.)
|
|
|
823 ;;
|
|
|
824 (if (window-buffer w)
|
|
|
825 (set-window-buffer w buffer))
|
|
|
826 fr))
|
|
|
827
|
|
|
828 (defun get-frame-for-buffer-noselect (buffer
|
|
|
829 &optional not-this-window-p on-frame)
|
|
|
830 "Return a frame in which to display BUFFER.
|
|
|
831 This is a subroutine of `get-frame-for-buffer' (which see)."
|
|
|
832 (let (name limit)
|
|
|
833 (cond
|
|
|
834 ((or on-frame (eq (selected-window) (minibuffer-window)))
|
|
|
835 ;; don't switch frames if a frame was specified, or to list
|
|
|
836 ;; completions from the minibuffer, etc.
|
|
|
837 nil)
|
|
|
838
|
|
|
839 ((setq name (get-frame-name-for-buffer buffer))
|
|
|
840 ;;
|
|
|
841 ;; This buffer's mode expressed a preference for a frame of a particular
|
|
|
842 ;; name. That always takes priority.
|
|
|
843 ;;
|
|
|
844 (let ((limit (get name 'instance-limit))
|
|
|
845 (matching-frames '())
|
|
|
846 frames frame already-visible)
|
|
|
847 ;; Sort the list so that iconic frames will be found last. They
|
|
|
848 ;; will be used too, but mapped frames take precedence. And
|
|
|
849 ;; fully visible frames come before occluded frames.
|
|
|
850 (setq frames
|
|
|
851 (sort (frame-list)
|
|
|
852 #'(lambda (s1 s2)
|
|
|
853 (cond ((frame-totally-visible-p s2)
|
|
|
854 nil)
|
|
|
855 ((not (frame-visible-p s2))
|
|
|
856 (frame-visible-p s1))
|
|
|
857 ((not (frame-totally-visible-p s2))
|
|
|
858 (and (frame-visible-p s1)
|
|
|
859 (frame-totally-visible-p s1)))))))
|
|
|
860 ;; but the selected frame should come first, even if it's occluded,
|
|
|
861 ;; to minimize thrashing.
|
|
|
862 (setq frames (cons (selected-frame)
|
|
|
863 (delq (selected-frame) frames)))
|
|
|
864
|
|
|
865 (setq name (symbol-name name))
|
|
|
866 (while frames
|
|
|
867 (setq frame (car frames))
|
|
|
868 (if (equal name (frame-name frame))
|
|
|
869 (if (get-buffer-window buffer frame)
|
|
|
870 (setq already-visible frame
|
|
|
871 frames nil)
|
|
|
872 (setq matching-frames (cons frame matching-frames))))
|
|
|
873 (setq frames (cdr frames)))
|
|
|
874 (cond (already-visible
|
|
|
875 already-visible)
|
|
|
876 ((or (null matching-frames)
|
|
|
877 (eq limit 0) ; means create with reckless abandon
|
|
|
878 (and limit (< (length matching-frames) limit)))
|
|
|
879 (get-frame-for-buffer-make-new-frame buffer name))
|
|
|
880 (t
|
|
|
881 ;; do not switch any of the window/buffer associations in an
|
|
|
882 ;; existing frame; this function only picks a frame; the
|
|
|
883 ;; determination of which windows on it get reused is up to
|
|
|
884 ;; display-buffer itself.
|
|
|
885 ;; (or (window-dedicated-p (selected-window))
|
|
|
886 ;; (switch-to-buffer buffer))
|
|
|
887 (car matching-frames)))))
|
|
|
888
|
|
|
889 ((setq limit get-frame-for-buffer-default-instance-limit)
|
|
|
890 ;;
|
|
|
891 ;; This buffer's mode did not express a preference for a frame of a
|
|
|
892 ;; particular name, but the user wants a new frame rather than
|
|
|
893 ;; reusing the existing one.
|
|
|
894 (let* ((defname
|
|
|
895 (or (plist-get default-frame-plist 'name)
|
|
|
896 default-frame-name))
|
|
|
897 (frames
|
|
|
898 (sort (filtered-frame-list #'(lambda (x)
|
|
|
899 (or (frame-visible-p x)
|
|
|
900 (frame-iconified-p x))))
|
|
|
901 #'(lambda (s1 s2)
|
|
|
902 (cond ((and (frame-visible-p s1)
|
|
|
903 (not (frame-visible-p s2))))
|
|
|
904 ((and (frame-visible-p s2)
|
|
|
905 (not (frame-visible-p s1)))
|
|
|
906 nil)
|
|
|
907 ((and (equal (frame-name s1) defname)
|
|
|
908 (not (equal (frame-name s2) defname))))
|
|
|
909 ((and (equal (frame-name s2) defname)
|
|
|
910 (not (equal (frame-name s1) defname)))
|
|
|
911 nil)
|
|
|
912 ((frame-totally-visible-p s2)
|
|
|
913 nil)
|
|
|
914 (t))))))
|
|
|
915 ;; put the selected frame last. The user wants a new frame,
|
|
|
916 ;; so don't reuse the existing one unless forced to.
|
|
|
917 (setq frames (append (delq (selected-frame) frames) (list frames)))
|
|
|
918 (if (or (eq limit 0) ; means create with reckless abandon
|
|
|
919 (< (length frames) limit))
|
|
|
920 (get-frame-for-buffer-make-new-frame buffer)
|
|
|
921 (car frames))))
|
|
|
922
|
|
|
923 (t
|
|
|
924 ;;
|
|
|
925 ;; This buffer's mode did not express a preference for a frame of a
|
|
|
926 ;; particular name. So try to find a frame already displaying this
|
|
|
927 ;; buffer.
|
|
|
928 ;;
|
|
|
929 (let ((w (or (get-buffer-window buffer 'visible) ; check visible first
|
|
|
930 (get-buffer-window buffer 0)))) ; then iconic
|
|
|
931 (cond ((null w)
|
|
|
932 ;; It's not in any window - return nil, meaning no frame has
|
|
|
933 ;; preference.
|
|
|
934 nil)
|
|
|
935 ((and not-this-window-p
|
|
|
936 (eq (selected-frame) (window-frame w)))
|
|
|
937 ;; It's in a window, but on this frame, and we have been
|
|
|
938 ;; asked to pick another window. Return nil, meaning no
|
|
|
939 ;; frame has preference.
|
|
|
940 nil)
|
|
|
941 (t
|
|
|
942 ;; Otherwise, return the frame of the buffer's window.
|
|
|
943 (window-frame w))))))))
|
|
|
944
|
|
|
945
|
|
|
946 ;; The pre-display-buffer-function is called for effect, so this needs to
|
|
|
947 ;; actually select the frame it wants. Fdisplay_buffer() takes notice of
|
|
|
948 ;; changes to the selected frame.
|
|
|
949 (defun get-frame-for-buffer (buffer &optional not-this-window-p on-frame)
|
|
|
950 "Select and return a frame in which to display BUFFER.
|
|
|
951 Normally, the buffer will simply be displayed in the current frame.
|
|
|
952 But if the symbol naming the major-mode of the buffer has a 'frame-name
|
|
|
953 property (which should be a symbol), then the buffer will be displayed in
|
|
|
954 a frame of that name. If there is no frame of that name, then one is
|
|
|
955 created.
|
|
|
956
|
|
|
957 If the major-mode doesn't have a 'frame-name property, then the frame
|
|
|
958 named by `get-frame-for-buffer-default-frame-name' will be used. If
|
|
|
959 that is nil (the default) then the currently selected frame will used.
|
|
|
960
|
|
|
961 If the frame-name symbol has an 'instance-limit property (an integer)
|
|
|
962 then each time a buffer of the mode in question is displayed, a new frame
|
|
|
963 with that name will be created, until there are `instance-limit' of them.
|
|
|
964 If instance-limit is 0, then a new frame will be created each time.
|
|
|
965
|
|
|
966 If a buffer is already displayed in a frame, then `instance-limit' is
|
|
|
967 ignored, and that frame is used.
|
|
|
968
|
|
|
969 If the frame-name symbol has a 'frame-defaults property, then that is
|
|
|
970 prepended to the `default-frame-plist' when creating a frame for the
|
|
|
971 first time.
|
|
|
972
|
|
|
973 This function may be used as the value of `pre-display-buffer-function',
|
|
|
974 to cause the display-buffer function and its callers to exhibit the above
|
|
|
975 behavior."
|
|
|
976 (let ((frame (get-frame-for-buffer-noselect
|
|
|
977 buffer not-this-window-p on-frame)))
|
|
|
978 (if (not (eq frame (selected-frame)))
|
|
|
979 frame
|
|
|
980 (select-frame frame)
|
|
|
981 (or (frame-visible-p frame)
|
|
|
982 ;; If the frame was already visible, just focus on it.
|
|
|
983 ;; If it wasn't visible (it was just created, or it used
|
|
|
984 ;; to be iconified) then uniconify, raise, etc.
|
|
|
985 (make-frame-visible frame))
|
|
|
986 frame)))
|
|
|
987
|
|
|
988 (defun frames-of-buffer (&optional buffer visible-only)
|
|
|
989 "Return list of frames that BUFFER is currently being displayed on.
|
|
|
990 If the buffer is being displayed on the currently selected frame, that frame
|
|
|
991 is first in the list. VISIBLE-ONLY will only list non-iconified frames."
|
|
|
992 (let ((list (windows-of-buffer buffer))
|
|
|
993 (cur-frame (selected-frame))
|
|
|
994 next-frame frames save-frame)
|
|
|
995
|
|
|
996 (while list
|
|
|
997 (if (memq (setq next-frame (window-frame (car list)))
|
|
|
998 frames)
|
|
|
999 nil
|
|
|
1000 (if (eq cur-frame next-frame)
|
|
|
1001 (setq save-frame next-frame)
|
|
|
1002 (and
|
|
|
1003 (or (not visible-only)
|
|
|
1004 (eq t (frame-visible-p next-frame)))
|
|
|
1005 (setq frames (append frames (list next-frame))))))
|
|
|
1006 (setq list (cdr list)))
|
|
|
1007
|
|
|
1008 (if save-frame
|
|
|
1009 (append (list save-frame) frames)
|
|
|
1010 frames)))
|
|
|
1011
|
|
|
1012 (defun show-temp-buffer-in-current-frame (buffer)
|
|
|
1013 "For use as the value of temp-buffer-show-function:
|
|
|
1014 always displays the buffer in the current frame, regardless of the behavior
|
|
|
1015 that would otherwise be introduced by the `pre-display-buffer-function', which
|
|
|
1016 is normally set to `get-frame-for-buffer' (which see)."
|
|
|
1017 (let ((pre-display-buffer-function nil)) ; turn it off, whatever it is
|
|
|
1018 (let ((window (display-buffer buffer)))
|
|
|
1019 (if (not (eq (last-nonminibuf-frame) (window-frame window)))
|
|
|
1020 ;; only the pre-display-buffer-function should ever do this.
|
|
|
1021 (error "display-buffer switched frames on its own!!"))
|
|
|
1022 (setq minibuffer-scroll-window window)
|
|
|
1023 (set-window-start window 1) ; obeys narrowing
|
|
|
1024 (set-window-point window 1)
|
|
10
|
1025 (shrink-window-if-larger-than-buffer window)
|
|
0
|
1026 nil)))
|
|
|
1027
|
|
|
1028 (setq pre-display-buffer-function 'get-frame-for-buffer)
|
|
|
1029 (setq temp-buffer-show-function 'show-temp-buffer-in-current-frame)
|
|
|
1030
|
|
|
1031
|
|
|
1032 ;; from Bob Weiner <bweiner@pts.mot.com>, modified by Ben Wing
|
|
|
1033 (defun delete-other-frames (&optional frame)
|
|
|
1034 "Delete all but FRAME (or the selected frame)."
|
|
|
1035 (interactive)
|
|
|
1036 (mapcar 'delete-frame (delq (or frame (selected-frame)) (frame-list))))
|
|
|
1037
|
|
|
1038 ;; By adding primitives to directly access the window hierarchy,
|
|
|
1039 ;; we can move many functions into Lisp. We do it this way
|
|
|
1040 ;; because the implementations are simpler in Lisp, and because
|
|
|
1041 ;; new functions like this can be added without requiring C
|
|
|
1042 ;; additions.
|
|
|
1043
|
|
|
1044 (defun frame-utmost-window-2 (window position left-right-p major-end-p
|
|
|
1045 minor-end-p)
|
|
|
1046 ;; LEFT-RIGHT-P means we're looking for the leftmost or rightmost
|
|
|
1047 ;; window, instead of the highest or lowest. In this case, we
|
|
|
1048 ;; say that the "major axis" goes left-to-right instead of top-to-
|
|
|
1049 ;; bottom. The "minor axis" always goes perpendicularly.
|
|
|
1050 ;;
|
|
|
1051 ;; If MAJOR-END-P is t, we're looking for a windows that abut the
|
|
|
1052 ;; end (i.e. right or bottom) of the major axis, instead of the
|
|
|
1053 ;; start.
|
|
|
1054 ;;
|
|
|
1055 ;; If MINOR-END-P is t, then we want to start counting from the
|
|
|
1056 ;; end of the minor axis instead of the beginning.
|
|
|
1057 ;;
|
|
|
1058 ;; Here's the general idea: Imagine we're trying to count the number
|
|
|
1059 ;; of windows that abut the top; call this function foo(). So, we
|
|
|
1060 ;; start with the root window. If this is a vertical combination
|
|
|
1061 ;; window, then foo() applied to the root window is the same as
|
|
|
1062 ;; foo() applied to the first child. If the root is a horizontal
|
|
|
1063 ;; combination window, then foo() applied to the root is the
|
|
|
1064 ;; same as the sum of foo() applied to each of the children.
|
|
|
1065 ;; Otherwise, the root window is a leaf window, and foo() is 1.
|
|
|
1066 ;; Now it's clear that, each time foo() encounters a leaf window,
|
|
|
1067 ;; it's encountering a different window that abuts the top.
|
|
|
1068 ;; With a little examining, you can see that foo encounters the
|
|
|
1069 ;; top-abutting windows in order from left to right. We can
|
|
|
1070 ;; modify foo() to return the nth top-abutting window by simply
|
|
|
1071 ;; keeping a global variable that is decremented each time
|
|
|
1072 ;; foo() encounters a leaf window and would return 1. If the
|
|
|
1073 ;; global counter gets to zero, we've encountered the window
|
|
|
1074 ;; we were looking for, so we exit right away using a `throw'.
|
|
|
1075 ;; Otherwise, we make sure that all normal paths return nil.
|
|
|
1076
|
|
|
1077 (let (child)
|
|
|
1078 (cond ((setq child (if left-right-p
|
|
|
1079 (window-first-hchild window)
|
|
|
1080 (window-first-vchild window)))
|
|
|
1081 (if major-end-p
|
|
|
1082 (while (window-next-child child)
|
|
|
1083 (setq child (window-next-child child))))
|
|
|
1084 (frame-utmost-window-2 child position left-right-p major-end-p
|
|
|
1085 minor-end-p))
|
|
|
1086 ((setq child (if left-right-p
|
|
|
1087 (window-first-vchild window)
|
|
|
1088 (window-first-hchild window)))
|
|
|
1089 (if minor-end-p
|
|
|
1090 (while (window-next-child child)
|
|
|
1091 (setq child (window-next-child child))))
|
|
|
1092 (while child
|
|
|
1093 (frame-utmost-window-2 child position left-right-p major-end-p
|
|
|
1094 minor-end-p)
|
|
|
1095 (setq child (if minor-end-p
|
|
|
1096 (window-previous-child child)
|
|
|
1097 (window-next-child child))))
|
|
|
1098 nil)
|
|
|
1099 (t
|
|
|
1100 (setcar position (1- (car position)))
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|
|
1101 (if (= (car position) 0)
|
|
|
1102 (throw 'fhw-exit window)
|
|
|
1103 nil)))))
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|
|
1104
|
|
|
1105 (defun frame-utmost-window-1 (frame position left-right-p major-end-p)
|
|
|
1106 (let (minor-end-p)
|
|
|
1107 (or frame (setq frame (selected-frame)))
|
|
|
1108 (or position (setq position 0))
|
|
|
1109 (if (>= position 0)
|
|
|
1110 (setq position (1+ position))
|
|
|
1111 (setq minor-end-p t)
|
|
|
1112 (setq position (- position)))
|
|
|
1113 (catch 'fhw-exit
|
|
|
1114 ;; we use a cons here as a simple form of call-by-reference.
|
|
|
1115 ;; scheme has "boxes" for the same purpose.
|
|
|
1116 (frame-utmost-window-2 (frame-root-window frame) (list position)
|
|
|
1117 left-right-p major-end-p minor-end-p))))
|
|
|
1118
|
|
|
1119
|
|
|
1120 (defun frame-highest-window (&optional frame position)
|
|
|
1121 "Return the highest window on FRAME which is at POSITION.
|
|
|
1122 If omitted, FRAME defaults to the currently selected frame.
|
|
|
1123 POSITION is used to distinguish between multiple windows that abut
|
|
|
1124 the top of the frame: 0 means the leftmost window abutting the
|
|
|
1125 top of the frame, 1 the next-leftmost, etc. POSITION can also
|
|
|
1126 be less than zero: -1 means the rightmost window abutting the
|
|
|
1127 top of the frame, -2 the next-rightmost, etc.
|
|
|
1128 If omitted, POSITION defaults to 0, i.e. the leftmost highest window.
|
|
|
1129 If there is no window at the given POSITION, return nil."
|
|
|
1130 (frame-utmost-window-1 frame position nil nil))
|
|
|
1131
|
|
|
1132 (defun frame-lowest-window (&optional frame position)
|
|
|
1133 "Return the lowest window on FRAME which is at POSITION.
|
|
|
1134 If omitted, FRAME defaults to the currently selected frame.
|
|
|
1135 POSITION is used to distinguish between multiple windows that abut
|
|
|
1136 the bottom of the frame: 0 means the leftmost window abutting the
|
|
|
1137 bottom of the frame, 1 the next-leftmost, etc. POSITION can also
|
|
|
1138 be less than zero: -1 means the rightmost window abutting the
|
|
|
1139 bottom of the frame, -2 the next-rightmost, etc.
|
|
|
1140 If omitted, POSITION defaults to 0, i.e. the leftmost lowest window.
|
|
|
1141 If there is no window at the given POSITION, return nil."
|
|
|
1142 (frame-utmost-window-1 frame position nil t))
|
|
|
1143
|
|
|
1144 (defun frame-leftmost-window (&optional frame position)
|
|
|
1145 "Return the leftmost window on FRAME which is at POSITION.
|
|
|
1146 If omitted, FRAME defaults to the currently selected frame.
|
|
|
1147 POSITION is used to distinguish between multiple windows that abut
|
|
|
1148 the left edge of the frame: 0 means the highest window abutting the
|
|
|
1149 left edge of the frame, 1 the next-highest, etc. POSITION can also
|
|
|
1150 be less than zero: -1 means the lowest window abutting the
|
|
|
1151 left edge of the frame, -2 the next-lowest, etc.
|
|
|
1152 If omitted, POSITION defaults to 0, i.e. the highest leftmost window.
|
|
|
1153 If there is no window at the given POSITION, return nil."
|
|
|
1154 (frame-utmost-window-1 frame position t nil))
|
|
|
1155
|
|
|
1156 (defun frame-rightmost-window (&optional frame position)
|
|
|
1157 "Return the rightmost window on FRAME which is at POSITION.
|
|
|
1158 If omitted, FRAME defaults to the currently selected frame.
|
|
|
1159 POSITION is used to distinguish between multiple windows that abut
|
|
|
1160 the right edge of the frame: 0 means the highest window abutting the
|
|
|
1161 right edge of the frame, 1 the next-highest, etc. POSITION can also
|
|
|
1162 be less than zero: -1 means the lowest window abutting the
|
|
|
1163 right edge of the frame, -2 the next-lowest, etc.
|
|
|
1164 If omitted, POSITION defaults to 0, i.e. the highest rightmost window.
|
|
|
1165 If there is no window at the given POSITION, return nil."
|
|
|
1166 (frame-utmost-window-1 frame position t t))
|
|
|
1167
|
|
|
1168
|
|
|
1169
|
|
|
1170 ;; frame properties.
|
|
|
1171
|
|
|
1172 (defun set-frame-property (frame prop val)
|
|
|
1173 "Set property PROP of FRAME to VAL. See `set-frame-properties'."
|
|
|
1174 (set-frame-properties frame (list prop val)))
|
|
|
1175
|
|
|
1176 (defun frame-height (&optional frame)
|
|
|
1177 "Return number of lines available for display on FRAME."
|
|
|
1178 (or frame (setq frame (selected-frame)))
|
|
|
1179 (frame-property frame 'height))
|
|
|
1180
|
|
|
1181 (defun frame-width (&optional frame)
|
|
|
1182 "Return number of columns available for display on FRAME."
|
|
|
1183 (or frame (setq frame (selected-frame)))
|
|
|
1184 (frame-property frame 'width))
|
|
|
1185
|
|
|
1186 (put 'cursor-color 'frame-property-alias [text-cursor background])
|
|
|
1187 (put 'modeline 'frame-property-alias 'has-modeline-p)
|
|
|
1188
|
|
|
1189
|
|
|
1190 (provide 'frame)
|
|
|
1191
|
|
|
1192 ;;; frame.el ends here
|
