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