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428
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1 ;;; modeline.el --- modeline hackery.
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2
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3 ;; Copyright (C) 1988, 1992-1994, 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: extensions, 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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22 ;; along with XEmacs; see the file COPYING. If not, write to the
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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: Not in FSF.
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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 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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35 ;;; General mouse modeline stuff ;;;
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36 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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37
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38 (defgroup modeline nil
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39 "Modeline customizations."
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40 :group 'environment)
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41
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42 (defcustom drag-divider-event-lag 150
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43 "*The pause (in msecs) between divider drag events before redisplaying.
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44 If this value is too small, dragging will be choppy because redisplay cannot
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45 keep up. If it is too large, dragging will be choppy because of the explicit
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46 redisplay delay specified."
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47 :type 'integer
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48 ;; #### Fix group.
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49 :group 'modeline)
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50
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51 (define-obsolete-variable-alias
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52 'drag-modeline-event-lag
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53 'drag-divider-event-lag)
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54
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55 (defcustom modeline-click-swaps-buffers nil
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56 "*If non-nil, clicking on the modeline changes the current buffer.
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57 Click on the left half of the modeline cycles forward through the
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58 buffer list and clicking on the right half cycles backward."
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59 :type 'boolean
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60 :group 'modeline)
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61
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62 (defun mouse-drag-modeline (event)
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63 "Resize a window by dragging its modeline.
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64 This command should be bound to a button-press event in modeline-map.
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65 Holding down a mouse button and moving the mouse up and down will
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66 make the clicked-on window taller or shorter."
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67 (interactive "e")
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68 (or (button-press-event-p event)
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69 (error "%s must be invoked by a mouse-press" this-command))
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70 (or (event-over-modeline-p event)
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71 (error "not over a modeline"))
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72 ;; Give the modeline a "pressed" look. --hniksic
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73 (let-specifier ((modeline-shadow-thickness
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74 (- (specifier-instance modeline-shadow-thickness
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75 (event-window event)))
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76 (event-window event)))
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77 (let ((done nil)
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78 (depress-line (event-y event))
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79 (start-event-frame (event-frame event))
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80 (start-event-window (event-window event))
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81 (start-nwindows (count-windows t))
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82 ;; (hscroll-delta (face-width 'modeline))
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83 ;; (start-hscroll (modeline-hscroll (event-window event)))
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84 ; (start-x-pixel (event-x-pixel event))
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85 (last-timestamp 0)
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86 default-line-height
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87 modeline-height
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88 should-enlarge-minibuffer
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89 event min-height minibuffer y top bot edges wconfig growth)
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90 (setq minibuffer (minibuffer-window start-event-frame)
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91 default-line-height (face-height 'default start-event-window)
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92 min-height (+ (* window-min-height default-line-height)
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93 ;; Don't let the window shrink by a
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94 ;; non-multiple of the default line
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95 ;; height. (enlarge-window -1) will do
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96 ;; this if the difference between the
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97 ;; current window height and the minimum
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98 ;; window height is less than the height
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99 ;; of the default font. These extra
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100 ;; lost pixels of height don't come back
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101 ;; if you grow the window again. This
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102 ;; can make it impossible to drag back
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103 ;; to the exact original size, which is
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104 ;; disconcerting.
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105 (% (window-pixel-height start-event-window)
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106 default-line-height))
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107 modeline-height
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108 (if (specifier-instance has-modeline-p start-event-window)
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109 (+ (face-height 'modeline start-event-window)
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110 (* 2 (specifier-instance modeline-shadow-thickness
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111 start-event-window)))
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112 (* 2 (specifier-instance modeline-shadow-thickness
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113 start-event-window))))
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114 (if (not (eq (window-frame minibuffer) start-event-frame))
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115 (setq minibuffer nil))
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116 (if (and (null minibuffer) (one-window-p t))
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117 (error "Attempt to resize sole window"))
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118 ;; if this is the bottommost ordinary window, then to
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119 ;; move its modeline the minibuffer must be enlarged.
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120 (setq should-enlarge-minibuffer
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121 (and minibuffer (window-lowest-p start-event-window)))
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122 ;; loop reading events
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123 (while (not done)
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124 (setq event (next-event event))
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125 ;; requeue event and quit if this is a misc-user, eval or
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126 ;; keypress event.
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127 ;; quit if this is a button press or release event, or if the event
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128 ;; occurred in some other frame.
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129 ;; drag if this is a mouse motion event and the time
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130 ;; between this event and the last event is greater than
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131 ;; drag-divider-event-lag.
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132 ;; do nothing if this is any other kind of event.
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133 (cond ((or (misc-user-event-p event)
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134 (key-press-event-p event))
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135 (setq unread-command-events (nconc unread-command-events
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136 (list event))
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137 done t))
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138 ((button-release-event-p event)
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139 (setq done t)
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140 ;; Consider we have a mouse click neither X pos (modeline
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141 ;; scroll) nore Y pos (modeline drag) have changed.
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142 (and modeline-click-swaps-buffers
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143 (= depress-line (event-y event))
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144 ;; (= start-hscroll (modeline-hscroll start-event-window))
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145 (modeline-swap-buffers event)))
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146 ((button-event-p event)
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147 (setq done t))
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148 ((not (motion-event-p event))
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149 (dispatch-event event))
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150 ((not (eq start-event-frame (event-frame event)))
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151 (setq done t))
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152 ((< (abs (- (event-timestamp event) last-timestamp))
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153 drag-divider-event-lag)
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154 nil)
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155 (t
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156 ;; (set-modeline-hscroll start-event-window
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157 ;; (+ (/ (- (event-x-pixel event)
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158 ;; start-x-pixel)
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159 ;; hscroll-delta)
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160 ;; start-hscroll))
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161 (setq last-timestamp (event-timestamp event)
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162 y (event-y-pixel event)
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163 edges (window-pixel-edges start-event-window)
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164 top (nth 1 edges)
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165 bot (nth 3 edges))
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166 ;; scale back a move that would make the
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167 ;; window too short.
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168 (cond ((< (- y top (- modeline-height)) min-height)
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169 (setq y (+ top min-height (- modeline-height)))))
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170 ;; compute size change needed
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171 (setq growth (- y bot (/ (- modeline-height) 2))
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172 wconfig (current-window-configuration))
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173 ;; grow/shrink minibuffer?
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174 (if should-enlarge-minibuffer
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175 (progn
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176 ;; yes. scale back shrinkage if it
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177 ;; would make the minibuffer less than 1
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178 ;; line tall.
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179 ;;
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180 ;; also flip the sign of the computed growth,
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181 ;; since if we want to grow the window with the
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182 ;; modeline we need to shrink the minibuffer
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183 ;; and vice versa.
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184 (if (and (> growth 0)
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185 (< (- (window-pixel-height minibuffer)
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186 growth)
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187 default-line-height))
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188 (setq growth
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189 (- (window-pixel-height minibuffer)
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190 default-line-height)))
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191 (setq growth (- growth))))
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192 ;; window grow and shrink by lines not pixels, so
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193 ;; divide the pixel height by the height of the
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194 ;; default face.
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195 (setq growth (/ growth default-line-height))
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196 ;; grow/shrink the window
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197 (enlarge-window growth nil (if should-enlarge-minibuffer
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198 minibuffer
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199 start-event-window))
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200 ;; if this window's growth caused another
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201 ;; window to be deleted because it was too
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202 ;; short, rescind the change.
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203 ;;
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204 ;; if size change caused space to be stolen
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205 ;; from a window above this one, rescind the
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206 ;; change, but only if we didn't grow/shrink
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207 ;; the minibuffer. minibuffer size changes
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208 ;; can cause all windows to shrink... no way
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209 ;; around it.
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210 (if (or (/= start-nwindows (count-windows t))
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211 (and (not should-enlarge-minibuffer)
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212 (/= top (nth 1 (window-pixel-edges
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213 start-event-window)))))
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214 (set-window-configuration wconfig))))))))
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215
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216 ;; from Bob Weiner (bob_weiner@pts.mot.com)
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217 ;; Whether this function should be called is now decided in
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218 ;; mouse-drag-modeline - dverna feb. 98
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219 (defun modeline-swap-buffers (event)
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220 "Handle mouse clicks on modeline by switching buffers.
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221 If click on left half of a frame's modeline, bury current buffer.
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222 If click on right half of a frame's modeline, raise bottommost buffer.
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223 Arg EVENT is the button release event that occurred on the modeline."
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224 (or (event-over-modeline-p event)
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225 (error "not over a modeline"))
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226 (or (button-release-event-p event)
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227 (error "not a button release event"))
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228 (if (< (event-x event) (/ (window-width (event-window event)) 2))
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229 ;; On left half of modeline, bury current buffer,
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230 ;; displaying second buffer on list.
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231 (mouse-bury-buffer event)
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232 ;; On right half of modeline, raise and display bottommost
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233 ;; buffer in buffer list.
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234 (mouse-unbury-buffer event)))
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235
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236 (defconst modeline-menu
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237 '("Window Commands"
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238 ["Delete Window Above" delete-window t]
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239 ["Delete Other Windows" delete-other-windows t]
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240 ["Split Window Above" split-window-vertically t]
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241 ["Split Window Horizontally" split-window-horizontally t]
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242 ["Balance Windows" balance-windows t]
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243 ))
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244
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245 (defun modeline-menu (event)
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246 (interactive "e")
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247 (popup-menu-and-execute-in-window
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248 (cons (format "Window Commands for %S:"
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249 (buffer-name (event-buffer event)))
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250 (cdr modeline-menu))
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251 event))
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252
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253 (defvar modeline-map (make-sparse-keymap 'modeline-map)
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254 "Keymap consulted for mouse-clicks on the modeline of a window.
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255 This variable may be buffer-local; its value will be looked up in
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256 the buffer of the window whose modeline was clicked upon.")
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257
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258 (define-key modeline-map 'button1 'mouse-drag-modeline)
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259 ;; button2 selects the window without setting point
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260 (define-key modeline-map 'button2 (lambda () (interactive "@")))
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261 (define-key modeline-map 'button3 'modeline-menu)
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262
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263 (make-face 'modeline-mousable "Face for mousable portions of the modeline.")
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264 (set-face-parent 'modeline-mousable 'modeline nil '(default))
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265 (when (featurep 'window-system)
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266 (set-face-foreground 'modeline-mousable
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267 '(((default color x) . "firebrick")
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268 ((default color mswindows) . "firebrick"))
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269 'global))
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270 (when (featurep 'x)
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271 (set-face-font 'modeline-mousable [bold] nil '(default mono x))
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272 (set-face-font 'modeline-mousable [bold] nil '(default grayscale x)))
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273
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274 (defmacro make-modeline-command-wrapper (command)
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275 `#'(lambda (event)
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276 (interactive "e")
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277 (save-selected-window
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278 (select-window (event-window event))
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279 (call-interactively ',(eval command)))))
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280
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281 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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282 ;;; Minor modes ;;;
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283 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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284
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285 (defvar minor-mode-alist nil
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286 "Alist saying how to show minor modes in the modeline.
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287 Each element looks like (VARIABLE STRING);
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288 STRING is included in the modeline iff VARIABLE's value is non-nil.
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289
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290 Actually, STRING need not be a string; any possible modeline element
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291 is okay. See `modeline-format'.")
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292
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293 ;; Used by C code (lookup-key and friends) but defined here.
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294 (defvar minor-mode-map-alist nil
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295 "Alist of keymaps to use for minor modes.
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296 Each element looks like (VARIABLE . KEYMAP); KEYMAP is used to read
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297 key sequences and look up bindings iff VARIABLE's value is non-nil.
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298 If two active keymaps bind the same key, the keymap appearing earlier
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299 in the list takes precedence.")
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300
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301 (make-face 'modeline-mousable-minor-mode
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302 "Face for mousable minor-mode strings in the modeline.")
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303 (set-face-parent 'modeline-mousable-minor-mode 'modeline-mousable nil
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304 '(default))
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305 (when (featurep 'window-system)
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306 (set-face-foreground 'modeline-mousable-minor-mode
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307 '(((default color x) . "green4")
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308 ((default color x) . "forestgreen")
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309 ((default color mswindows) . "green4")
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310 ((default color mswindows) . "forestgreen"))
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311 'global))
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312
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313 (defvar modeline-mousable-minor-mode-extent (make-extent nil nil)
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314 ;; alliteration at its finest.
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315 "Extent managing the mousable minor mode modeline strings.")
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316 (set-extent-face modeline-mousable-minor-mode-extent
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317 'modeline-mousable-minor-mode)
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318
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319 ;; This replaces the idiom
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320 ;;
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321 ;; (or (assq 'isearch-mode minor-mode-alist)
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322 ;; (setq minor-mode-alist
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323 ;; (purecopy
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324 ;; (append minor-mode-alist
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325 ;; '((isearch-mode isearch-mode))))))
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326
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327 (defun add-minor-mode (toggle name &optional keymap after toggle-fun)
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328 "Add a minor mode to `minor-mode-alist' and `minor-mode-map-alist'.
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329
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330 TOGGLE is a symbol whose value as a variable specifies whether the
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331 minor mode is active.
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332
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333 NAME is the name that should appear in the modeline. It should either
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334 be a string beginning with a space, or a symbol with a similar string
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335 as its value.
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336
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337 KEYMAP is a keymap to make active when the minor mode is active.
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338
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339 AFTER is the toggling symbol used for another minor mode. If AFTER is
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340 non-nil, then it is used to position the new mode in the minor-mode
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341 alists.
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342
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343 TOGGLE-FUN specifies an interactive function that is called to toggle
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344 the mode on and off; this affects what happens when button2 is pressed
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345 on the mode, and when button3 is pressed somewhere in the list of
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346 modes. If TOGGLE-FUN is nil and TOGGLE names an interactive function,
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347 TOGGLE is used as the toggle function.
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348
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349 Example: (add-minor-mode 'view-minor-mode \" View\" view-mode-map)"
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350 (let* ((add-elt #'(lambda (elt sym)
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351 (let (place)
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352 (cond ((null after) ; add to front
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353 (push elt (symbol-value sym)))
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354 ((and (not (eq after t))
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355 (setq place (memq (assq after
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356 (symbol-value sym))
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357 (symbol-value sym))))
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358 (push elt (cdr place)))
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359 (t
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360 (set sym (append (symbol-value sym)
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361 (list elt))))))
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362 (symbol-value sym)))
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363 el toggle-keymap)
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364 (if toggle-fun
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365 (check-argument-type 'commandp toggle-fun)
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366 (when (commandp toggle)
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367 (setq toggle-fun toggle)))
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368 (when (and toggle-fun name)
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369 (setq toggle-keymap (make-sparse-keymap
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370 (intern (concat "modeline-minor-"
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371 (symbol-name toggle)
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372 "-map"))))
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373 (define-key toggle-keymap 'button2
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374 ;; defeat the DUMB-ASS byte-compiler, which tries to
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375 ;; expand the macro at compile time and fucks up.
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376 (eval '(make-modeline-command-wrapper toggle-fun)))
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377 (put toggle 'modeline-toggle-function toggle-fun))
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378 (when name
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379 (let ((hacked-name
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380 (if toggle-keymap
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381 (cons (let ((extent (make-extent nil nil)))
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382 (set-extent-keymap extent toggle-keymap)
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383 (set-extent-property
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384 extent 'help-echo
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385 (concat "button2 turns off "
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386 (if (symbolp toggle-fun)
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387 (symbol-name toggle-fun)
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388 (symbol-name toggle))))
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389 extent)
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390 (cons modeline-mousable-minor-mode-extent name))
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391 name)))
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392 (if (setq el (assq toggle minor-mode-alist))
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393 (setcdr el (list hacked-name))
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394 (funcall add-elt
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395 (list toggle hacked-name)
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396 'minor-mode-alist))))
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397 (when keymap
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398 (if (setq el (assq toggle minor-mode-map-alist))
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399 (setcdr el keymap)
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400 (funcall add-elt
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401 (cons toggle keymap)
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402 'minor-mode-map-alist)))))
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403
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404 ;; #### TODO: Add `:menu-tag' keyword to add-minor-mode. Or create a
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405 ;; separate function to manage the minor mode menu.
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406
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407 ;(put 'abbrev-mode :menu-tag "Abbreviation Expansion")
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408 (add-minor-mode 'abbrev-mode " Abbrev")
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409 ;; only when visiting a file...
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410 (add-minor-mode 'overwrite-mode 'overwrite-mode)
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411 ;(put 'auto-fill-function :menu-tag "Auto Fill")
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412 (add-minor-mode 'auto-fill-function " Fill" nil nil 'auto-fill-mode)
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413
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414 ;(put 'defining-kbd-macro :menu-tag "Keyboard Macro")
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415 (add-minor-mode 'defining-kbd-macro " Def" nil nil
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416 (lambda ()
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417 (interactive)
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418 (if defining-kbd-macro
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419 (progn
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420 ;; #### This means to disregard the last event.
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421 ;; It is needed because the last recorded
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422 ;; event is usually the mouse event that
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423 ;; invoked the menu item (and this function),
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424 ;; and having it in the macro causes problems.
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425 (zap-last-kbd-macro-event)
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426 (end-kbd-macro nil))
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427 (start-kbd-macro nil))))
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428
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429 (defun modeline-minor-mode-menu (event)
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430 "The menu that pops up when you press `button3' inside the
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431 parentheses on the modeline."
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432 (interactive "e")
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433 (save-excursion
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434 (set-buffer (event-buffer event))
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435 (popup-menu-and-execute-in-window
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436 (cons
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437 "Minor Mode Toggles"
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438 (sort
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439 (delq nil (mapcar
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440 #'(lambda (x)
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441 (let* ((toggle-sym (car x))
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442 (toggle-fun (or (get toggle-sym
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443 'modeline-toggle-function)
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444 (and (commandp toggle-sym)
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445 toggle-sym)))
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446 (menu-tag (symbol-name (if (symbolp toggle-fun)
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447 toggle-fun
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448 toggle-sym))
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449 ;; Here a function should
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450 ;; maybe be invoked to
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451 ;; beautify the symbol's
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452 ;; menu appearance.
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453 ))
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454 (and toggle-fun
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455 (vector menu-tag
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456 toggle-fun
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457 ;; The following two are wrong
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458 ;; because of possible name
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459 ;; clashes.
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460 ;:active (get toggle-sym :active t)
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461 ;:included (get toggle-sym :included t)
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462 :style 'toggle
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463 :selected (and (boundp toggle-sym)
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464 toggle-sym)))))
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465 minor-mode-alist))
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466 (lambda (e1 e2)
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467 (string< (aref e1 0) (aref e2 0)))))
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468 event)))
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469
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470 (defvar modeline-minor-mode-map (make-sparse-keymap 'modeline-minor-mode-map)
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471 "Keymap consulted for mouse-clicks on the minor-mode modeline list.")
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472 (define-key modeline-minor-mode-map 'button3 'modeline-minor-mode-menu)
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473
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474 (defvar modeline-minor-mode-extent (make-extent nil nil)
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475 "Extent covering the minor mode modeline strings.")
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476 (set-extent-face modeline-minor-mode-extent 'modeline-mousable)
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477 (set-extent-keymap modeline-minor-mode-extent modeline-minor-mode-map)
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478
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479
|
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|
480 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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|
481 ;;; Other ;;;
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|
482 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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483
|
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|
484 (defun modeline-buffers-menu (event)
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485 (interactive "e")
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486 (popup-menu-and-execute-in-window
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|
487 '("Buffers Popup Menu"
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|
488 :filter buffers-menu-filter
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|
|
489 ["List All Buffers" list-buffers t]
|
|
|
490 "--"
|
|
|
491 )
|
|
|
492 event))
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493
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|
494 (defvar modeline-buffer-id-left-map
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|
495 (make-sparse-keymap 'modeline-buffer-id-left-map)
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|
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496 "Keymap consulted for mouse-clicks on the left half of the buffer-id string.")
|
|
|
497
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|
|
498 (defvar modeline-buffer-id-right-map
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|
499 (make-sparse-keymap 'modeline-buffer-id-right-map)
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|
|
500 "Keymap consulted for mouse-clicks on the right half of the buffer-id string.")
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|
|
501
|
|
|
502 (define-key modeline-buffer-id-left-map 'button2 'mouse-unbury-buffer)
|
|
|
503 (define-key modeline-buffer-id-right-map 'button2 'mouse-bury-buffer)
|
|
|
504 (define-key modeline-buffer-id-left-map 'button3 'modeline-buffers-menu)
|
|
|
505 (define-key modeline-buffer-id-right-map 'button3 'modeline-buffers-menu)
|
|
|
506
|
|
|
507 (make-face 'modeline-buffer-id
|
|
|
508 "Face for the buffer ID string in the modeline.")
|
|
|
509 (set-face-parent 'modeline-buffer-id 'modeline nil '(default))
|
|
|
510 (when (featurep 'window-system)
|
|
|
511 (set-face-foreground 'modeline-buffer-id
|
|
|
512 '(((default color x) . "blue4")
|
|
|
513 ((default color mswindows) . "blue4"))
|
|
|
514 'global))
|
|
|
515 (when (featurep 'x)
|
|
|
516 (set-face-font 'modeline-buffer-id [bold-italic] nil '(default mono x))
|
|
|
517 (set-face-font 'modeline-buffer-id [bold-italic] nil '(default grayscale x)))
|
|
|
518 (when (featurep 'tty)
|
|
|
519 (set-face-font 'modeline-buffer-id [bold-italic] nil '(default tty)))
|
|
|
520
|
|
|
521 (defvar modeline-buffer-id-extent (make-extent nil nil)
|
|
|
522 "Extent covering the whole of the buffer-id string.")
|
|
|
523 (set-extent-face modeline-buffer-id-extent 'modeline-buffer-id)
|
|
|
524
|
|
|
525 (defvar modeline-buffer-id-left-extent (make-extent nil nil)
|
|
|
526 "Extent covering the left half of the buffer-id string.")
|
|
|
527 (set-extent-keymap modeline-buffer-id-left-extent
|
|
|
528 modeline-buffer-id-left-map)
|
|
|
529 (set-extent-property modeline-buffer-id-left-extent 'help-echo
|
|
|
530 "button2 cycles to the previous buffer")
|
|
|
531
|
|
|
532 (defvar modeline-buffer-id-right-extent (make-extent nil nil)
|
|
|
533 "Extent covering the right half of the buffer-id string.")
|
|
|
534 (set-extent-keymap modeline-buffer-id-right-extent
|
|
|
535 modeline-buffer-id-right-map)
|
|
|
536 (set-extent-property modeline-buffer-id-right-extent 'help-echo
|
|
|
537 "button2 cycles to the next buffer")
|
|
|
538
|
|
|
539 (defconst modeline-buffer-identification
|
|
|
540 (list (cons modeline-buffer-id-left-extent (purecopy "XEmacs%N:"))
|
|
|
541 ; this used to be "XEmacs:"
|
|
|
542 (cons modeline-buffer-id-right-extent (purecopy " %17b")))
|
|
|
543 "Modeline control for identifying the buffer being displayed.
|
|
|
544 Its default value is \"XEmacs: %17b\" (NOT!). Major modes that edit things
|
|
|
545 other than ordinary files may change this (e.g. Info, Dired,...)")
|
|
|
546 (make-variable-buffer-local 'modeline-buffer-identification)
|
|
|
547
|
|
|
548 ;; These are for the sake of minor mode menu. #### All of this is
|
|
|
549 ;; kind of dirty. `add-minor-mode' started out as a simple substitute
|
|
|
550 ;; for (or (assq ...) ...) FSF stuff, but now is used for all kind of
|
|
|
551 ;; stuff. There should perhaps be a separate function to add toggles
|
|
|
552 ;; to the minor-mode-menu.
|
|
|
553 (add-minor-mode 'line-number-mode "")
|
|
|
554 (add-minor-mode 'column-number-mode "")
|
|
|
555
|
|
|
556 (defconst modeline-process nil
|
|
|
557 "Modeline control for displaying info on process status.
|
|
|
558 Normally nil in most modes, since there is no process to display.")
|
|
|
559 (make-variable-buffer-local 'modeline-process)
|
|
|
560
|
|
|
561 (defvar modeline-modified-map (make-sparse-keymap 'modeline-modified-map)
|
|
|
562 "Keymap consulted for mouse-clicks on the modeline-modified string.")
|
|
|
563 (define-key modeline-modified-map 'button2
|
|
|
564 (make-modeline-command-wrapper 'modeline-toggle-read-only))
|
|
|
565
|
|
|
566 (defvar modeline-modified-extent (make-extent nil nil)
|
|
|
567 "Extent covering the modeline-modified string.")
|
|
|
568 (set-extent-face modeline-modified-extent 'modeline-mousable)
|
|
|
569 (set-extent-keymap modeline-modified-extent modeline-modified-map)
|
|
|
570 (set-extent-property modeline-modified-extent 'help-echo
|
|
|
571 "button2 toggles the buffer's read-only status")
|
|
|
572
|
|
|
573 (defconst modeline-modified (purecopy '("--%1*%1+-"))
|
|
|
574 "Modeline control for displaying whether current buffer is modified.")
|
|
|
575 (make-variable-buffer-local 'modeline-modified)
|
|
|
576
|
|
|
577 (defvar modeline-narrowed-map (make-sparse-keymap 'modeline-narrowed-map)
|
|
|
578 "Keymap consulted for mouse-clicks on the modeline-narrowed string.")
|
|
|
579 (define-key modeline-narrowed-map 'button2
|
|
|
580 (make-modeline-command-wrapper 'widen))
|
|
|
581
|
|
|
582 (defvar modeline-narrowed-extent (make-extent nil nil)
|
|
|
583 "Extent covering the modeline-narrowed string.")
|
|
|
584 (set-extent-face modeline-narrowed-extent 'modeline-mousable)
|
|
|
585 (set-extent-keymap modeline-narrowed-extent modeline-narrowed-map)
|
|
|
586 (set-extent-property modeline-narrowed-extent 'help-echo
|
|
|
587 "button2 widens the buffer")
|
|
|
588
|
|
|
589 (setq-default
|
|
|
590 modeline-format
|
|
|
591 (list
|
|
|
592 (purecopy "")
|
|
|
593 (cons modeline-modified-extent 'modeline-modified)
|
|
|
594 (cons modeline-buffer-id-extent 'modeline-buffer-identification)
|
|
|
595 (purecopy " ")
|
|
|
596 'global-mode-string
|
|
|
597 (purecopy " %[(")
|
|
|
598 (cons modeline-minor-mode-extent
|
|
|
599 (list (purecopy "") 'mode-name 'minor-mode-alist))
|
|
|
600 (cons modeline-narrowed-extent (purecopy "%n"))
|
|
|
601 'modeline-process
|
|
|
602 (purecopy ")%]----")
|
|
|
603 (list 'line-number-mode (purecopy "L%l--"))
|
|
|
604 (list 'column-number-mode (purecopy "C%c--"))
|
|
|
605 (cons -3 (purecopy "%p"))
|
|
|
606 (purecopy "-%-")))
|
|
|
607
|
|
|
608 ;;; Added for XEmacs 20.3. Provide wrapper for vc since it may not always be
|
|
|
609 ;;; present, and its symbols are not visible this early in the dump if it
|
|
|
610 ;;; is.
|
|
|
611
|
|
|
612 (defun modeline-toggle-read-only ()
|
|
|
613 "Change whether this buffer is visiting its file read-only.
|
|
|
614 With arg, set read-only iff arg is positive.
|
|
|
615 This function is designed to be called when the read-only indicator on the
|
|
|
616 modeline is clicked. It will call `vc-toggle-read-only' if available,
|
|
|
617 otherwise it will call the usual `toggle-read-only'."
|
|
|
618 (interactive)
|
|
|
619 (if (fboundp 'vc-toggle-read-only)
|
|
|
620 (vc-toggle-read-only)
|
|
|
621 (toggle-read-only)))
|
|
|
622
|
|
|
623 ;;; modeline.el ends here
|
