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209
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1 ;;; mouse.el --- window system-independent mouse support.
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2
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3 ;; Copyright (C) 1988, 1992-4, 1997 Free Software Foundation, Inc.
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4 ;; Copyright (C) 1995 Tinker Systems
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5 ;; Copyright (C) 1995, 1996 Ben Wing.
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6
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7 ;; Maintainer: XEmacs Development Team
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8 ;; Keywords: mouse, dumped
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9
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10 ;; This file is part of XEmacs.
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11
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12 ;; XEmacs is free software; you can redistribute it and/or modify it
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13 ;; under the terms of the GNU General Public License as published by
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14 ;; the Free Software Foundation; either version 2, or (at your option)
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15 ;; any later version.
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16
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17 ;; XEmacs is distributed in the hope that it will be useful, but
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18 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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20 ;; General Public License for more details.
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21
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22 ;; You should have received a copy of the GNU General Public License
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23 ;; along with XEmacs; see the file COPYING. If not, write to the
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24 ;; Free Software Foundation, 59 Temple Place - Suite 330,
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25 ;; Boston, MA 02111-1307, USA.
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26
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27 ;;; Synched up with: Not synched with FSF. Almost completely divergent.
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28
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29 ;;; Commentary:
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30
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31 ;; This file is dumped with XEmacs (when window system support is compiled in).
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32
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33 ;;; Code:
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34
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35 (provide 'mouse)
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36
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37 (global-set-key 'button1 'mouse-track)
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38 (global-set-key '(shift button1) 'mouse-track-adjust)
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39 (global-set-key '(control button1) 'mouse-track-insert)
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40 (global-set-key '(control shift button1) 'mouse-track-delete-and-insert)
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41 (global-set-key '(meta button1) 'mouse-track-do-rectangle)
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42
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43 ;; enable drag regions (ograf@fga.de)
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44 ;; if button2 is dragged from within a region, this becomes a drop
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45 (if (featurep '(or offix cde))
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46 (global-set-key 'button2 'mouse-drag-or-yank)
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47 (global-set-key 'button2 'mouse-yank))
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48
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49 ;; enable drops from OffiX (ograf@fga.de)
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50 ;; accept any button1,2,3 drop with `mouse-offix-drop'
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51 (cond ((featurep 'offix)
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52 (global-set-key 'drop1 'mouse-offix-drop)
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53 (global-set-key 'drop2 'mouse-offix-drop)
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54 (global-set-key 'drop3 'mouse-offix-drop)))
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55
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56 (defcustom mouse-track-rectangle-p nil
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57 "*If true, then dragging out a region with the mouse selects rectangles
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58 instead of simple start/end regions."
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59 :type 'boolean
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60 :group 'mouse)
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61
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62 (defcustom mouse-yank-at-point nil
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63 "*If non-nil, the function `mouse-yank' will yank text at the cursor location.
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64 Otherwise, the cursor will be moved to the location of the pointer click before
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65 text is inserted."
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66 :type 'boolean
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67 :group 'mouse)
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68
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69 (defcustom mouse-highlight-text 'context
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70 "*Choose the default double-click highlighting behaviour.
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71 If set to `context', double-click will highlight words when the mouse
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72 is at a word character, or a symbol if the mouse is at a symbol
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73 character.
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74 If set to `word', double-click will always attempt to highlight a word.
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75 If set to `symbol', double-click will always attempt to highlight a
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76 symbol (the default behaviour in previous XEmacs versions)."
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77 :type '(choice (const context)
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78 (const word)
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79 (const symbol))
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80 :group 'mouse)
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81
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82 (defvar mouse-yank-function 'mouse-consolidated-yank
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83 "Function that is called upon by `mouse-yank' to actually insert text.")
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84
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85 (defun mouse-consolidated-yank ()
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86 (interactive)
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87 (case (device-type)
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88 (x (x-yank-function))
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89 (tty (yank))
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90 (otherwise (yank))))
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91
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92
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93 (defun mouse-select ()
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94 "Select Emacs window the mouse is on."
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95 (interactive "@"))
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96
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97 (defun mouse-delete-window ()
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98 "Delete the Emacs window the mouse is on."
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99 (interactive "@")
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100 (delete-window))
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101
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102 (defun mouse-keep-one-window ()
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103 "Select Emacs window mouse is on, then kill all other Emacs windows."
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104 (interactive "@")
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105 (delete-other-windows))
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106
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107 (defun mouse-select-and-split ()
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108 "Select Emacs window mouse is on, then split it vertically in half."
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109 (interactive "@")
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110 (split-window-vertically nil))
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111
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112 (defun mouse-set-point (event)
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113 "Select Emacs window mouse is on, and move point to mouse position."
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114 (interactive "@e")
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115 (let ((window (event-window event))
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116 (pos (event-point event))
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117 (close-pos (event-closest-point event)))
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118 (or window (error "not in a window"))
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119 (select-window window)
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120 (if (and pos (> pos 0))
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121 ;; If the event was over a text char, it's easy.
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122 (goto-char (max (min pos (point-max)) (point-min)))
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123 (if (and close-pos (> close-pos 0))
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124 (goto-char (max (min close-pos (point-max)) (point-min)))
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125 ;; When the event occurs outside of the frame directly to the
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126 ;; left or right of a modeline, close-point is nil, but
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127 ;; event-over-modeline is also nil. That will drop us to this
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128 ;; point. So instead of erroring, just return nil.
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129 nil))))
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130
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131 (defun mouse-yank (event)
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132 "Paste text with the mouse.
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133 If the variable `mouse-yank-at-point' is nil, then pasting occurs at the
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134 location of the click; otherwise, pasting occurs at the current cursor
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135 location."
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136 (interactive "e")
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137 (and (not mouse-yank-at-point)
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138 (mouse-set-point event))
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139 (funcall mouse-yank-function))
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140
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141 (defun click-inside-extent-p (click extent)
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142 "Returns non-nil if the button event is within the bounds of the primary
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143 selection-extent, nil otherwise."
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144 ;; stig@hackvan.com
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145 (let ((ewin (event-window click))
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146 (epnt (event-point click)))
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147 (and ewin
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148 epnt
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149 extent
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150 (eq (window-buffer ewin)
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151 (extent-object extent))
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152 (extent-start-position extent)
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153 (> epnt (extent-start-position extent))
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154 (> (extent-end-position extent) epnt))))
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155
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156 (defun click-inside-selection-p (click)
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157 (or (click-inside-extent-p click primary-selection-extent)
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158 (click-inside-extent-p click zmacs-region-extent)
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159 ))
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160
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161 (defun point-inside-extent-p (extent)
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162 "Returns non-nil if the point is within or just after the bounds of the
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163 primary selection-extent, nil otherwise."
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164 ;; stig@hackvan.com
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165 (and extent
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166 (eq (current-buffer)
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167 (extent-object extent))
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168 (> (point) (extent-start-position extent))
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169 (>= (extent-end-position extent) (point))))
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170
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171 (defun point-inside-selection-p ()
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172 ;; by Stig@hackvan.com
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173 (or (point-inside-extent-p primary-selection-extent)
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174 (point-inside-extent-p zmacs-region-extent)))
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175
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176 (defun mouse-drag-or-yank (event)
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177 "Either drag or paste the current selection. If the variable
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178 `mouse-yank-at-point' is non-nil, then moves the cursor to the location of
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179 the click before pasting.
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180 This functions has to be improved. Until now it is just a (working) test."
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181 ;; by Oliver Graf <ograf@fga.de>
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182 (interactive "e")
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183 (if (click-inside-extent-p event zmacs-region-extent)
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184 ;; okay, this is a drag
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185 (cond ((featurep 'offix)
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186 (offix-start-drag-region event
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187 (extent-start-position zmacs-region-extent)
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188 (extent-end-position zmacs-region-extent)))
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189 ((featurep 'cde)
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190 ;; should also work with CDE
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191 (cde-start-drag
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192 (extent-start-position zmacs-region-extent)
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193 (extent-end-position zmacs-region-extent)))
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194 (t (error "No offix or CDE support compiled in")))
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195 ;; no drag, call region-funct
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196 (and (not mouse-yank-at-point)
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197 (mouse-set-point event))
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198 (funcall mouse-yank-function))
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199 )
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200
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201 (defun mouse-offix-drop (event)
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202 "Do something with an OffiX drop event. Inserts Text drops and
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203 executes appropriate commands for specific drops.
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204 Text drops follow the `mouse-yank-at-point' variable."
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205 ;; by Oliver Graf <ograf@fga.de>
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206 (interactive "e")
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207 (let ((type (car (event-drag-and-drop-data event)))
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208 (data (cadr (event-drag-and-drop-data event)))
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209 (frame (event-channel event)))
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210 (cond ((= type 2)
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211 (let ((x pop-up-windows))
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212 (setq pop-up-windows nil)
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213 (pop-to-buffer (find-file-noselect data) nil frame)
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214 (make-frame-visible frame)
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215 (setq pop-up-windows x)))
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216 ((= type 3)
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217 (let ((x pop-up-windows))
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218 (setq pop-up-windows nil)
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219 (while (not (eq data ()))
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220 (pop-to-buffer (find-file-noselect (car data)) nil frame)
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221 (setq data (cdr data)))
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222 (make-frame-visible frame)
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223 (setq pop-up-windows x)))
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224 ((= type 4)
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225 (and (not mouse-yank-at-point)
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226 (mouse-set-point event))
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227 (insert data))
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228 ((= type 5) (dired data))
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229 ((or (= type 6) (= type 7)) (dired data)) ;; this is junk
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230 ((= type 8) (funcall browse-url-browser-function data))
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231 ((= type 9)
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232 (let ((buf (generate-new-buffer "DndMIME")))
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233 (set-buffer buf)
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234 (pop-to-buffer buf nil frame)
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235 (insert data)
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236 (make-frame-visible frame)))
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237 (t ;; this is raw data or unknown stuff
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238 (let ((buf (generate-new-buffer "DndRawData")))
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239 (set-buffer buf)
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240 (pop-to-buffer buf nil frame)
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241 (insert data)
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242 (hexlify-buffer)
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243 (make-frame-visible frame))))))
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244
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245 (defun mouse-eval-sexp (click force-window)
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246 "Evaluate the sexp under the mouse. Usually, this is the last sexp before
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247 the click, but if you click on a left paren, then it is the sexp beginning
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248 with the paren that is evaluated. Also, since strings evaluate to themselves,
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249 they're fed to re-search-forward and the matched region is highlighted until
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250 the mouse button is released.
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251
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252 Perhaps the most useful thing about this function is that the evaluation of
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253 the expression which is clicked upon is relative not to the window where you
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254 click, but to the current window and the current position of point. Thus,
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255 you can use `mouse-eval-sexp' to interactively test code that acts upon a
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256 buffer...something you cannot do with the standard `eval-last-sexp' function.
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257 It's also fantastic for debugging regular expressions."
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258 ;; by Stig@hackvan.com
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259 (interactive "e\nP")
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260 (let (exp val result-str)
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261 (setq exp (save-window-excursion
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262 (save-excursion
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263 (mouse-set-point click)
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264 (save-excursion
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265 (or (looking-at "(") (forward-sexp -1))
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266 (read (point-marker))))))
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267 (cond ((stringp exp)
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268 (if (setq val (re-search-forward exp nil t))
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269 (let* ((oo (make-extent (match-beginning 0) (match-end 0))))
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270 (set-extent-face oo 'highlight)
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271 (set-extent-priority oo 1000)
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272 ;; wait for button release...
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273 (setq unread-command-event (next-command-event))
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274 (delete-extent oo))
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275 (message "Regex \"%s\" not found" exp)
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276 (ding nil 'quiet)))
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277 (t (setq val (if (fboundp 'eval-interactive)
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278 (eval-interactive exp)
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279 (eval exp)))))
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280 (setq result-str (prin1-to-string val))
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281 ;; #### -- need better test
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282 (if (and (not force-window)
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283 (<= (length result-str) (window-width (selected-window))))
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284 (message "%s" result-str)
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285 (with-output-to-temp-buffer "*Mouse-Eval*"
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286 (condition-case nil
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287 (pprint val)
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288 (error (prin1 val))))
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289 )))
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290
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291 (defun mouse-line-length (event)
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292 "Print the length of the line indicated by the pointer."
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293 (interactive "@e")
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294 (save-excursion
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295 (mouse-set-point event)
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296 (message "Line length: %d" (- (point-at-eol) (point-at-bol))))
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297 (sleep-for 1))
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298
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299 (defun mouse-set-mark (event)
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300 "Select Emacs window mouse is on, and set mark at mouse position.
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301 Display cursor at that position for a second."
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302 (interactive "@e")
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303 (let ((point-save (point)))
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304 (unwind-protect
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305 (progn (mouse-set-point event)
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306 (push-mark nil t)
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307 (sit-for 1))
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308 (goto-char point-save))))
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309
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310 (defun mouse-scroll (event)
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311 "Scroll point to the mouse position."
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312 (interactive "@e")
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313 (save-excursion
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314 (mouse-set-point event)
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315 (recenter 0)
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316 (scroll-right (event-x event))))
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317
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318 (defun mouse-del-char (event)
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319 "Delete the char pointed to by the mouse."
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320 (interactive "@e")
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321 (save-excursion
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322 (mouse-set-point event)
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323 (delete-char 1 nil)))
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324
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325 (defun mouse-kill-line (event)
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326 "Kill the line pointed to by the mouse."
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327 (interactive "@e")
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328 (save-excursion
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329 (mouse-set-point event)
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330 (kill-line nil)))
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331
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332 (defun mouse-bury-buffer (event)
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333 "Bury the buffer pointed to by the mouse, thus selecting the next one."
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334 (interactive "e")
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335 (save-selected-window
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336 (select-window (event-window event))
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337 (bury-buffer)))
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338
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339 (defun mouse-unbury-buffer (event)
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340 "Unbury and select the most recently buried buffer."
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341 (interactive "e")
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342 (save-selected-window
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343 (select-window (event-window event))
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344 (let* ((bufs (buffer-list))
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345 (entry (1- (length bufs)))
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346 val)
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347 (while (not (setq val (nth entry bufs)
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348 val (and (/= (aref (buffer-name val) 0)
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349 ? )
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350 val)))
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351 (setq entry (1- entry)))
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352 (switch-to-buffer val))))
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353
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354 (defun narrow-window-to-region (m n)
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355 "Narrow window to region between point and last mark"
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356 (interactive "r")
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357 (save-excursion
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358 (save-restriction
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359 (if (eq (selected-window) (next-window))
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360 (split-window))
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361 (goto-char m)
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362 (recenter 0)
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363 (if (eq (selected-window)
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364 (if (zerop (minibuffer-depth))
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365 (next-window)))
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366 ()
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367 (shrink-window (- (- (window-height) (count-lines m n)) 1))))))
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368
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369 (defun mouse-window-to-region (event)
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370 "Narrow window to region between cursor and mouse pointer."
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371 (interactive "@e")
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372 (let ((point-save (point)))
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373 (unwind-protect
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374 (progn (mouse-set-point event)
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375 (push-mark nil t)
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376 (sit-for 1))
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377 (goto-char point-save)
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378 (narrow-window-to-region (region-beginning) (region-end)))))
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379
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380 (defun mouse-ignore ()
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381 "Don't do anything."
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382 (interactive))
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383
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384
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385 ;;
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386 ;; Commands for the scroll bar.
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387 ;;
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388
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389 ;; this stuff has never ever been used and should be junked.
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390
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391 ;; Vertical bar
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392
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393 ;(defun mouse-scroll-down (nlines)
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394 ; "Junk me, please."
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395 ; (interactive "@p")
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396 ; (scroll-down nlines))
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397
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398 ;(defun mouse-scroll-up (nlines)
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399 ; "Junk me, please."
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400 ; (interactive "@p")
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|
401 ; (scroll-up nlines))
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402
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403 ;(defun mouse-scroll-down-full ()
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404 ; "Junk me, please."
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405 ; (interactive "@")
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406 ; (scroll-down nil))
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407
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408 ;(defun mouse-scroll-up-full ()
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409 ; "Junk me, please."
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410 ; (interactive "@")
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411 ; (scroll-up nil))
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412
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413 ;(defun mouse-scroll-move-cursor (nlines)
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414 ; "Junk me, please."
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415 ; (interactive "@p")
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416 ; (move-to-window-line nlines))
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417
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418 ;(defun mouse-scroll-absolute (event)
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419 ; "Junk me, please."
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420 ; (interactive "@e")
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421 ; (let* ((position (event-x event))
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422 ; (length (event-y event))
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423 ; (size (buffer-size))
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424 ; (scale-factor (max 1 (/ 8000000 size)))
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425 ; (newpos (* (/ (* (/ size scale-factor) position) length)
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426 ; scale-factor)))
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427 ; (goto-char newpos)
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428 ; (recenter '(4))))
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429
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430 ;; These scroll while the invoking button is depressed.
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431
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432 ;(defvar scrolled-lines 0)
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433 ;(defvar scroll-speed 1)
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434
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435 ;(defun incr-scroll-down (event)
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436 ; "Junk me, please."
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437 ; (interactive "@e")
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|
438 ; (setq scrolled-lines 0)
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439 ; (incremental-scroll scroll-speed))
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440
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441 ;(defun incr-scroll-up (event)
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442 ; "Junk me, please."
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443 ; (interactive "@e")
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|
444 ; (setq scrolled-lines 0)
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445 ; (incremental-scroll (- scroll-speed)))
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446
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447 ;(defun incremental-scroll (n)
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448 ; "Junk me, please."
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449 ; (let ((down t))
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450 ; (while down
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451 ; (sit-for mouse-track-scroll-delay)
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|
452 ; (cond ((input-pending-p)
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453 ; (let ((event (next-command-event)))
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454 ; (if (or (button-press-event-p event)
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455 ; (button-release-event-p event))
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456 ; (setq down nil))
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457 ; (dispatch-event event))))
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458 ; (setq scrolled-lines (1+ (* scroll-speed scrolled-lines)))
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|
459 ; (scroll-down n))))
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460
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|
461 ;(defun incr-scroll-stop (event)
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462 ; "Junk me, please."
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463 ; (interactive "@e")
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|
464 ; (setq scrolled-lines 0)
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465 ; (sleep-for 1))
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466
|
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467
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|
468 ;(defun mouse-scroll-left (ncolumns)
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469 ; "Junk me, please."
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470 ; (interactive "@p")
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|
471 ; (scroll-left ncolumns))
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472
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|
473 ;(defun mouse-scroll-right (ncolumns)
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474 ; "Junk me, please."
|
|
|
475 ; (interactive "@p")
|
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|
476 ; (scroll-right ncolumns))
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477
|
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|
478 ;(defun mouse-scroll-left-full ()
|
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|
479 ; "Junk me, please."
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|
480 ; (interactive "@")
|
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|
481 ; (scroll-left nil))
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482
|
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483 ;(defun mouse-scroll-right-full ()
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|
484 ; "Junk me, please."
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|
485 ; (interactive "@")
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|
486 ; (scroll-right nil))
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487
|
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|
488 ;(defun mouse-scroll-move-cursor-horizontally (ncolumns)
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|
|
489 ; "Junk me, please."
|
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|
490 ; (interactive "@p")
|
|
|
491 ; (move-to-column ncolumns))
|
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492
|
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|
493 ;(defun mouse-scroll-absolute-horizontally (event)
|
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|
494 ; "Junk me, please."
|
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|
495 ; (interactive "@e")
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|
496 ; (set-window-hscroll (selected-window) 33))
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497
|
|
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498
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499
|
|
|
500 ;;; mouse/selection tracking
|
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|
501 ;;; generalized mouse-track
|
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502
|
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|
503 (defvar default-mouse-track-normalize-point-function
|
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|
504 'default-mouse-track-normalize-point
|
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|
505 "Function called to normalize position of point.
|
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|
506 Called with two arguments: TYPE depends on the number of times that the
|
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|
507 mouse has been clicked and is a member of `default-mouse-track-type-list',
|
|
|
508 FORWARDP determines the direction in which the point should be moved.")
|
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509
|
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|
510 (defvar mouse-track-down-hook nil
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|
|
511 "Function or functions called when the user presses the mouse.
|
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512 This hook is invoked by `mouse-track'; thus, it will not be called
|
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|
513 for any buttons with a different binding. The functions will be
|
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|
514 called with two arguments: the button-press event and a click
|
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|
515 count (see `mouse-track-click-hook').
|
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|
516
|
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517 If any function returns non-nil, the remaining functions will not be
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518 called.
|
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519
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|
520 Note that most applications should take action when the mouse is
|
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521 released, not when it is pressed.'")
|
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|
522
|
|
|
523 (defvar mouse-track-drag-hook nil
|
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|
524 "Function or functions called when the user drags the mouse.
|
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|
525 This hook is invoked by `mouse-track'; thus, it will not be called
|
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526 for any buttons with a different binding. The functions will be
|
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527 called with three arguments: the mouse-motion event, a click
|
|
|
528 count (see `mouse-track-click-hook'), and whether the call to
|
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|
529 this hook occurred as a result of a drag timeout (see
|
|
|
530 `mouse-track-scroll-delay').
|
|
|
531
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532 If any function returns non-nil, the remaining functions will not be
|
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533 called.
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534
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535 Note that no calls to this function will be made until the user
|
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536 initiates a drag (i.e. moves the mouse more than a certain
|
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537 threshold in either the X or the Y direction, as defined by
|
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|
538 `mouse-track-x-threshold' and `mouse-track-y-threshold').
|
|
|
539
|
|
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540 See also `mouse-track-drag-up-hook'.")
|
|
|
541
|
|
|
542 (defvar mouse-track-drag-up-hook nil
|
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|
543 "Function or functions called when the user finishes a drag.
|
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544 This hook is invoked by `mouse-track'; thus, it will not be called
|
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545 for any buttons with a different binding. The functions will be
|
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546 called with two arguments: the button-press event and a click
|
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|
547 count (see `mouse-track-click-hook').
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|
548
|
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549 If any function returns non-nil, the remaining functions will not be
|
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550 called.
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551
|
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|
552 Note that this hook will not be invoked unless the user has
|
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553 initiated a drag, i.e. moved the mouse more than a certain threshold
|
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554 (see `mouse-track-drag-hook'). When this function is invoked,
|
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555 `mouse-track-drag-hook' will have been invoked at least once.
|
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|
556
|
|
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557 See also `mouse-track-click-hook'.")
|
|
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558
|
|
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559 (defvar mouse-track-click-hook nil
|
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|
560 "Function or functions called when the user clicks the mouse.
|
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|
561 `Clicking' means pressing and releasing the mouse without having
|
|
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562 initiated a drag (i.e. without having moved more than a certain
|
|
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563 threshold -- see `mouse-track-drag-hook').
|
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564
|
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565 This hook is invoked by `mouse-track'; thus, it will not be called
|
|
|
566 for any buttons with a different binding. The functions will be
|
|
|
567 called with two arguments: the button-release event and a click
|
|
|
568 count, which specifies the number of times that the mouse has been
|
|
|
569 clicked in a series of clicks, each of which is separated by at most
|
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|
570 `mouse-track-multi-click-time'. This can be used to implement actions
|
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|
571 that are called on double clicks, triple clicks, etc.
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572
|
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573 If any function returns non-nil, the remaining functions will not be
|
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|
574 called.
|
|
|
575
|
|
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576 See also `mouse-track-drag-up-hook.")
|
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577
|
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|
578 (defvar mouse-track-up-hook nil
|
|
|
579 "Function or functions called when the user releases the mouse.
|
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|
580 This hook is invoked by `mouse-track'; thus, it will not be called
|
|
|
581 for any buttons with a different binding. The functions will be
|
|
|
582 called with two arguments: the button-release event and a click
|
|
|
583 count (see `mouse-track-click-hook').
|
|
|
584
|
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585 For many applications, it is more appropriate to use one or both
|
|
|
586 of `mouse-track-click-hook' and `mouse-track-drag-up-hook'.")
|
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|
587
|
|
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588 (defvar mouse-track-cleanup-hook nil
|
|
|
589 "Function or functions called when `mouse-track' terminates.
|
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|
590 This hook will be called in all circumstances, even upon a
|
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|
591 non-local exit out of `mouse-track', and so is useful for
|
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|
592 doing cleanup work such as removing extents that may have
|
|
|
593 been created during the operation of `mouse-track'.
|
|
|
594
|
|
|
595 Unlike all of the other mouse-track hooks, this is a \"normal\"
|
|
|
596 hook: the hook functions are called with no arguments, and
|
|
|
597 all hook functions are called regardless of their return
|
|
|
598 values.")
|
|
|
599
|
|
|
600 (defcustom mouse-track-multi-click-time 400
|
|
|
601 "*Maximum number of milliseconds allowed between clicks for a multi-click.
|
|
|
602 See `mouse-track-click-hook'."
|
|
|
603 :type 'integer
|
|
|
604 :group 'mouse)
|
|
|
605
|
|
|
606 (defcustom mouse-track-scroll-delay 100
|
|
|
607 "Maximum of milliseconds between calls to `mouse-track-drag-hook'.
|
|
|
608 If the user is dragging the mouse (i.e. the button is held down and
|
|
|
609 a drag has been initiated) and does not move the mouse for this many
|
|
|
610 milliseconds, the hook will be called with t as the value of the
|
|
|
611 WAS-TIMEOUT parameter. This can be used to implement scrolling
|
|
|
612 in a selection when the user drags the mouse out the window it
|
|
|
613 was in.
|
|
|
614
|
|
|
615 A value of nil disables the timeout feature."
|
|
|
616 :type '(choice integer (const :tag "Disabled" nil))
|
|
|
617 :group 'mouse)
|
|
|
618
|
|
|
619 (defvar mouse-track-x-threshold '(face-width 'default)
|
|
|
620 "Minimum number of pixels in the X direction for a drag to be initiated.
|
|
|
621 If the mouse is moved more than either the X or Y threshold while the
|
|
|
622 button is held down (see also `mouse-track-y-threshold'), then a drag
|
|
|
623 is initiated; otherwise the gesture is considered to be a click.
|
|
|
624 See `mouse-track'.
|
|
|
625
|
|
|
626 The value should be either a number of a form to be evaluated to
|
|
|
627 produce a number.")
|
|
|
628
|
|
|
629 (defvar mouse-track-y-threshold '(face-height 'default)
|
|
|
630 "Minimum number of pixels in the Y direction for a drag to be initiated.
|
|
|
631 If the mouse is moved more than either the X or Y threshold while the
|
|
|
632 button is held down (see also `mouse-track-x-threshold'), then a drag
|
|
|
633 is initiated; otherwise the gesture is considered to be a click.
|
|
|
634 See `mouse-track'.
|
|
|
635
|
|
|
636 The value should be either a number of a form to be evaluated to
|
|
|
637 produce a number.")
|
|
|
638
|
|
|
639 ;; these variables are private to mouse-track.
|
|
|
640 (defvar mouse-track-up-time nil)
|
|
|
641 (defvar mouse-track-up-x nil)
|
|
|
642 (defvar mouse-track-up-y nil)
|
|
|
643 (defvar mouse-track-timeout-id nil)
|
|
|
644 (defvar mouse-track-click-count nil)
|
|
|
645
|
|
|
646 (defun mouse-track-set-timeout (event)
|
|
|
647 (if mouse-track-timeout-id
|
|
|
648 (disable-timeout mouse-track-timeout-id))
|
|
|
649 (if mouse-track-scroll-delay
|
|
|
650 (setq mouse-track-timeout-id
|
|
|
651 (add-timeout (/ mouse-track-scroll-delay 1000.0)
|
|
|
652 'mouse-track-scroll-undefined
|
|
|
653 (copy-event event)))))
|
|
|
654
|
|
|
655 (defun mouse-track-run-hook (hook event &rest args)
|
|
|
656 ;; ugh, can't use run-special-hook-with-args because we
|
|
|
657 ;; have to get the value using symbol-value-in-buffer.
|
|
|
658 ;; Doing a save-excursion/set-buffer is wrong because
|
|
|
659 ;; the hook might want to change the buffer, but just
|
|
|
660 ;; doing a set-buffer is wrong because the hook might
|
|
|
661 ;; not want to change the buffer.
|
|
|
662 (let ((buffer (event-buffer event)))
|
|
|
663 (if mouse-grabbed-buffer (setq buffer mouse-grabbed-buffer))
|
|
|
664 (if buffer
|
|
|
665 (let ((value (symbol-value-in-buffer hook buffer nil)))
|
|
|
666 (if (and (listp value) (not (eq (car value) 'lambda)))
|
|
|
667 (let (retval)
|
|
|
668 (while (and value
|
|
|
669 (not (setq retval (apply (car value) event args))))
|
|
|
670 (setq value (cdr value)))
|
|
|
671 retval)
|
|
|
672 (apply value event args))))))
|
|
|
673
|
|
|
674 (defun mouse-track-scroll-undefined (random)
|
|
|
675 ;; the old implementation didn't actually define this function,
|
|
|
676 ;; and in normal use it won't ever be called because the timeout
|
|
|
677 ;; will either be removed before it fires or will be picked off
|
|
|
678 ;; with next-event and not dispatched. However, if you're
|
|
|
679 ;; attempting to debug a click-hook (which is pretty damn
|
|
|
680 ;; difficult to do), this function may get called.
|
|
|
681 )
|
|
|
682
|
|
|
683 (defun mouse-track (event)
|
|
|
684 "Make a selection with the mouse. This should be bound to a mouse button.
|
|
|
685 The behavior of XEmacs during mouse selection is customizable using various
|
|
|
686 hooks and variables: see `mouse-track-click-hook', `mouse-track-drag-hook',
|
|
|
687 `mouse-track-drag-up-hook', `mouse-track-down-hook', `mouse-track-up-hook',
|
|
|
688 `mouse-track-cleanup-hook', `mouse-track-multi-click-time',
|
|
|
689 `mouse-track-scroll-delay', `mouse-track-x-threshold', and
|
|
|
690 `mouse-track-y-threshold'.
|
|
|
691
|
|
|
692 Default handlers are provided to implement standard selecting/positioning
|
|
|
693 behavior. You can explicitly request this default behavior, and override
|
|
|
694 any custom-supplied handlers, by using the function `mouse-track-default'
|
|
|
695 instead of `mouse-track'.
|
|
|
696
|
|
|
697 Default behavior is as follows:
|
|
|
698
|
|
|
699 If you click-and-drag, the selection will be set to the region between the
|
|
|
700 point of the initial click and the point at which you release the button.
|
|
|
701 These positions need not be ordered.
|
|
|
702
|
|
|
703 If you click-and-release without moving the mouse, then the point is moved
|
|
|
704 and the selection is disowned (there will be no selection owner). The mark
|
|
|
705 will be set to the previous position of point.
|
|
|
706
|
|
|
707 If you double-click, the selection will extend by symbols instead of by
|
|
|
708 characters. If you triple-click, the selection will extend by lines.
|
|
|
709
|
|
|
710 If you drag the mouse off the top or bottom of the window, you can select
|
|
|
711 pieces of text which are larger than the visible part of the buffer; the
|
|
|
712 buffer will scroll as necessary.
|
|
|
713
|
|
|
714 The selected text becomes the current X Selection. The point will be left
|
|
|
715 at the position at which you released the button, and the mark will be left
|
|
|
716 at the initial click position."
|
|
|
717 (interactive "e")
|
|
|
718 (let ((mouse-down t)
|
|
|
719 (xthresh (eval mouse-track-x-threshold))
|
|
|
720 (ythresh (eval mouse-track-y-threshold))
|
|
|
721 (orig-x (event-x-pixel event))
|
|
|
722 (orig-y (event-y-pixel event))
|
|
|
723 (buffer (event-buffer event))
|
|
|
724 (mouse-grabbed-buffer (event-buffer event))
|
|
|
725 mouse-moved)
|
|
|
726 (if (or (not mouse-track-up-x)
|
|
|
727 (not mouse-track-up-y)
|
|
|
728 (not mouse-track-up-time)
|
|
|
729 (> (- (event-timestamp event) mouse-track-up-time)
|
|
|
730 mouse-track-multi-click-time)
|
|
|
731 (> (abs (- mouse-track-up-x orig-x)) xthresh)
|
|
|
732 (> (abs (- mouse-track-up-y orig-y)) ythresh))
|
|
|
733 (setq mouse-track-click-count 1)
|
|
|
734 (setq mouse-track-click-count (1+ mouse-track-click-count)))
|
|
|
735 (if (not (event-window event))
|
|
|
736 (error "Not over a window."))
|
|
|
737 (mouse-track-run-hook 'mouse-track-down-hook
|
|
|
738 event mouse-track-click-count)
|
|
|
739 (unwind-protect
|
|
|
740 (while mouse-down
|
|
|
741 (setq event (next-event event))
|
|
|
742 (cond ((motion-event-p event)
|
|
|
743 (if (and (not mouse-moved)
|
|
|
744 (or (> (abs (- (event-x-pixel event) orig-x))
|
|
|
745 xthresh)
|
|
|
746 (> (abs (- (event-y-pixel event) orig-y))
|
|
|
747 ythresh)))
|
|
|
748 (setq mouse-moved t))
|
|
|
749 (if mouse-moved
|
|
|
750 (mouse-track-run-hook 'mouse-track-drag-hook
|
|
|
751 event mouse-track-click-count nil))
|
|
|
752 (mouse-track-set-timeout event))
|
|
|
753 ((and (timeout-event-p event)
|
|
|
754 (eq (event-function event)
|
|
|
755 'mouse-track-scroll-undefined))
|
|
|
756 (if mouse-moved
|
|
|
757 (mouse-track-run-hook 'mouse-track-drag-hook
|
|
|
758 (event-object event) mouse-track-click-count t))
|
|
|
759 (mouse-track-set-timeout (event-object event)))
|
|
|
760 ((button-release-event-p event)
|
|
|
761 (setq mouse-track-up-time (event-timestamp event))
|
|
|
762 (setq mouse-track-up-x (event-x-pixel event))
|
|
|
763 (setq mouse-track-up-y (event-y-pixel event))
|
|
|
764 (setq mouse-down nil)
|
|
|
765 (mouse-track-run-hook 'mouse-track-up-hook
|
|
|
766 event mouse-track-click-count)
|
|
|
767 (if mouse-moved
|
|
|
768 (mouse-track-run-hook 'mouse-track-drag-up-hook
|
|
|
769 event mouse-track-click-count)
|
|
|
770 (mouse-track-run-hook 'mouse-track-click-hook
|
|
|
771 event mouse-track-click-count)))
|
|
|
772 ((key-press-event-p event)
|
|
|
773 (error "Selection aborted"))
|
|
|
774 (t
|
|
|
775 (dispatch-event event))))
|
|
|
776 ;; protected
|
|
|
777 (if mouse-track-timeout-id
|
|
|
778 (disable-timeout mouse-track-timeout-id))
|
|
|
779 (setq mouse-track-timeout-id nil)
|
|
|
780 (and buffer
|
|
|
781 (save-excursion
|
|
|
782 (set-buffer buffer)
|
|
|
783 (run-hooks 'mouse-track-cleanup-hook))))))
|
|
|
784
|
|
|
785
|
|
|
786 ;;;;;;;;;;;; default handlers: new version of mouse-track
|
|
|
787
|
|
|
788 (defvar default-mouse-track-type nil)
|
|
|
789 (defvar default-mouse-track-type-list '(char word line))
|
|
|
790 (defvar default-mouse-track-window nil)
|
|
|
791 (defvar default-mouse-track-extent nil)
|
|
|
792 (defvar default-mouse-track-adjust nil)
|
|
|
793 (defvar default-mouse-track-min-anchor nil)
|
|
|
794 (defvar default-mouse-track-max-anchor nil)
|
|
|
795 (defvar default-mouse-track-result nil)
|
|
|
796 (defvar default-mouse-track-down-event nil)
|
|
|
797
|
|
|
798 (defun default-mouse-track-set-point-in-window (event window)
|
|
|
799 (if (not (and (not (event-over-modeline-p event))
|
|
|
800 (eq (event-window event) window)
|
|
|
801 (let ((p (event-closest-point event)))
|
|
|
802 (and p (pos-visible-in-window-p p window)))))
|
|
|
803 nil
|
|
|
804 (mouse-set-point event)
|
|
|
805 t))
|
|
|
806
|
|
|
807 (defun default-mouse-track-scroll-and-set-point (event window)
|
|
|
808 (select-window window)
|
|
|
809 (let ((edges (window-pixel-edges window))
|
|
|
810 (row (event-y-pixel event))
|
|
|
811 (height (face-height 'default)))
|
|
|
812 (cond ((< (abs (- row (nth 1 edges))) (abs (- row (nth 3 edges))))
|
|
|
813 ;; closer to window's top than to bottom, so move up
|
|
|
814 (let ((delta (max 1 (/ (- (nth 1 edges) row) height))))
|
|
|
815 (condition-case () (scroll-down delta) (error))
|
|
|
816 (goto-char (window-start))))
|
|
|
817 ((>= (point) (point-max)))
|
|
|
818 (t
|
|
|
819 ;; scroll by one line if over the modeline or a clipped line
|
|
|
820 (let ((delta (if (or (event-over-modeline-p event)
|
|
|
821 (< row (nth 3 edges)))
|
|
|
822 1
|
|
|
823 (+ (/ (- row (nth 3 edges)) height) 1)))
|
|
|
824 (close-pos (event-closest-point event)))
|
|
|
825 (condition-case () (scroll-up delta) (error))
|
|
|
826 (if (and close-pos (pos-visible-in-window-p close-pos))
|
|
|
827 (goto-char close-pos)
|
|
|
828 (goto-char (window-end))
|
|
|
829 (vertical-motion delta)
|
|
|
830 ;; window-end reports the end of the clipped line, even if
|
|
|
831 ;; scroll-on-clipped-lines is t. compensate.
|
|
|
832 ;; (If window-end gets fixed this can be removed.)
|
|
|
833 (if (not (pos-visible-in-window-p (max (1- (point))
|
|
|
834 (point-min))))
|
|
|
835 (vertical-motion -1))
|
|
|
836 (condition-case () (backward-char 1)
|
|
|
837 (error (end-of-line)))))))))
|
|
|
838
|
|
|
839
|
|
|
840 ;; This remembers the last position at which the user clicked, for the
|
|
|
841 ;; benefit of mouse-track-adjust (for example, button1; scroll until the
|
|
|
842 ;; position of the click is off the frame; then Sh-button1 to select the
|
|
|
843 ;; new region.
|
|
|
844 (defvar default-mouse-track-previous-point nil)
|
|
|
845
|
|
|
846 (defun default-mouse-track-set-point (event window)
|
|
|
847 (if (default-mouse-track-set-point-in-window event window)
|
|
|
848 nil
|
|
|
849 (default-mouse-track-scroll-and-set-point event window)))
|
|
|
850
|
|
|
851 (defsubst default-mouse-track-beginning-of-word (symbolp)
|
|
|
852 (let ((word-constituent (cond ((eq symbolp t) "\\w\\|\\s_\\|\\s'")
|
|
|
853 ((null symbolp) "\\w")
|
|
|
854 (t "[^ \t\n]")))
|
|
|
855 (white-space "[ \t]"))
|
|
|
856 (cond ((bobp) nil)
|
|
|
857 ((looking-at word-constituent)
|
|
|
858 (backward-char)
|
|
|
859 (while (and (not (bobp)) (looking-at word-constituent))
|
|
|
860 (backward-char))
|
|
|
861 (if (or (not (bobp)) (not (looking-at word-constituent)))
|
|
|
862 (forward-char)))
|
|
|
863 ((looking-at white-space)
|
|
|
864 (backward-char)
|
|
|
865 (while (looking-at white-space)
|
|
|
866 (backward-char))
|
|
|
867 (forward-char)))))
|
|
|
868
|
|
|
869 (defun default-mouse-track-end-of-word (symbolp)
|
|
|
870 (let ((word-constituent (cond ((eq symbolp t) "\\w\\|\\s_\\|\\s'")
|
|
|
871 ((null symbolp) "\\w")
|
|
|
872 (t "[^ \t\n]")))
|
|
|
873 (white-space "[ \t]"))
|
|
|
874 (cond ((looking-at word-constituent) ; word or symbol constituent
|
|
|
875 (while (looking-at word-constituent)
|
|
|
876 (forward-char)))
|
|
|
877 ((looking-at white-space) ; word or symbol constituent
|
|
|
878 (while (looking-at white-space)
|
|
|
879 (forward-char))))))
|
|
|
880
|
|
|
881 ;; Decide what will be the SYMBOLP argument to
|
|
|
882 ;; default-mouse-track-{beginning,end}-of-word, according to the
|
|
|
883 ;; syntax of the current character and value of mouse-highlight-text.
|
|
|
884 (defsubst default-mouse-symbolp (syntax)
|
|
|
885 (cond ((eq mouse-highlight-text 'context)
|
|
|
886 (eq syntax ?_))
|
|
|
887 ((eq mouse-highlight-text 'symbol)
|
|
|
888 t)
|
|
|
889 (t
|
|
|
890 nil)))
|
|
|
891
|
|
|
892 (defun default-mouse-track-normalize-point (type forwardp)
|
|
|
893 (cond ((eq type 'word)
|
|
|
894 ;; trap the beginning and end of buffer errors
|
|
|
895 (ignore-errors
|
|
|
896 (setq type (char-syntax (char-after (point))))
|
|
|
897 (if forwardp
|
|
|
898 (if (= type ?\()
|
|
|
899 (goto-char (scan-sexps (point) 1))
|
|
|
900 (if (= type ?\))
|
|
|
901 (forward-char 1)
|
|
|
902 (default-mouse-track-end-of-word
|
|
|
903 (default-mouse-symbolp type))))
|
|
|
904 (if (= type ?\))
|
|
|
905 (goto-char (scan-sexps (1+ (point)) -1))
|
|
|
906 (default-mouse-track-beginning-of-word
|
|
|
907 (default-mouse-symbolp type))))))
|
|
|
908 ((eq type 'line)
|
|
|
909 (if forwardp (end-of-line) (beginning-of-line)))
|
|
|
910 ((eq type 'buffer)
|
|
|
911 (if forwardp (end-of-buffer) (beginning-of-buffer)))))
|
|
|
912
|
|
|
913 (defun default-mouse-track-next-move (min-anchor max-anchor extent)
|
|
|
914 (let ((anchor (if (<= (point) min-anchor) max-anchor min-anchor)))
|
|
|
915 (funcall default-mouse-track-normalize-point-function
|
|
|
916 default-mouse-track-type (> (point) anchor))
|
|
|
917 (if (consp extent)
|
|
|
918 (default-mouse-track-next-move-rect anchor (point) extent)
|
|
|
919 (if extent
|
|
|
920 (if (<= anchor (point))
|
|
|
921 (set-extent-endpoints extent anchor (point))
|
|
|
922 (set-extent-endpoints extent (point) anchor))))))
|
|
|
923
|
|
|
924 (defun default-mouse-track-next-move-rect (start end extents &optional pad-p)
|
|
|
925 (if (< end start)
|
|
|
926 (let ((tmp start)) (setq start end end tmp)))
|
|
|
927 (cond
|
|
|
928 ((= start end) ; never delete the last remaining extent
|
|
|
929 (mapcar 'delete-extent (cdr extents))
|
|
|
930 (setcdr extents nil)
|
|
|
931 (set-extent-endpoints (car extents) start start))
|
|
|
932 (t
|
|
|
933 (let ((indent-tabs-mode nil) ; if pad-p, don't use tabs
|
|
|
934 (rest extents)
|
|
|
935 left right last p)
|
|
|
936 (save-excursion
|
|
|
937 (save-restriction
|
|
|
938 (goto-char end)
|
|
|
939 (setq right (current-column))
|
|
|
940 (goto-char start)
|
|
|
941 (setq left (current-column))
|
|
|
942 (if (< right left)
|
|
|
943 (let ((tmp left))
|
|
|
944 (setq left right right tmp)
|
|
|
945 (setq start (- start (- right left))
|
|
|
946 end (+ end (- right left)))))
|
|
|
947 ;; End may have been set to a value greater than point-max if drag
|
|
|
948 ;; or movement extends to end of buffer, so reset it.
|
|
|
949 (setq end (min end (point-max)))
|
|
|
950 (beginning-of-line)
|
|
|
951 (narrow-to-region (point) end)
|
|
|
952 (goto-char start)
|
|
|
953 (while (and rest (not (eobp)))
|
|
|
954 (setq p (point))
|
|
|
955 (move-to-column right pad-p)
|
|
|
956 (set-extent-endpoints (car rest) p (point))
|
|
|
957 ;; this code used to look at the return value
|
|
|
958 ;; of forward-line, but that doesn't work because
|
|
|
959 ;; forward-line has bogus behavior: If you're on
|
|
|
960 ;; the last line of a buffer but not at the very
|
|
|
961 ;; end, forward-line will move you to the very
|
|
|
962 ;; end and return 0 instead of 1, like it should.
|
|
|
963 ;; the result was frequent infinite loops here,
|
|
|
964 ;; creating very large numbers of extents at
|
|
|
965 ;; the same position. There was an N^2 sorting
|
|
|
966 ;; algorithm in extents.c for extents at a
|
|
|
967 ;; particular position, and the result was very
|
|
|
968 ;; bad news.
|
|
|
969 (forward-line 1)
|
|
|
970 (if (not (eobp))
|
|
|
971 (move-to-column left pad-p))
|
|
|
972 (setq last rest
|
|
|
973 rest (cdr rest)))
|
|
|
974 (cond (rest
|
|
|
975 (mapcar 'delete-extent rest)
|
|
|
976 (setcdr last nil))
|
|
|
977 ((not (eobp))
|
|
|
978 (while (not (eobp))
|
|
|
979 (setq p (point))
|
|
|
980 (move-to-column right pad-p)
|
|
|
981 (let ((e (make-extent p (point))))
|
|
|
982 (set-extent-face e (extent-face (car extents)))
|
|
|
983 (set-extent-priority e (extent-priority (car extents)))
|
|
|
984 (setcdr last (cons e nil))
|
|
|
985 (setq last (cdr last)))
|
|
|
986 (forward-line 1)
|
|
|
987 (if (not (eobp))
|
|
|
988 (move-to-column left pad-p))
|
|
|
989 )))))
|
|
|
990 ))))
|
|
|
991
|
|
|
992 (defun default-mouse-track-has-selection-p (buffer)
|
|
|
993 (and (or (not (eq 'x (console-type)))
|
|
|
994 (x-selection-owner-p))
|
|
|
995 (extent-live-p primary-selection-extent)
|
|
|
996 (not (extent-detached-p primary-selection-extent))
|
|
|
997 (eq buffer (extent-object primary-selection-extent))))
|
|
|
998
|
|
|
999 (defun default-mouse-track-anchor (adjust previous-point)
|
|
|
1000 (if adjust
|
|
|
1001 (if (default-mouse-track-has-selection-p (current-buffer))
|
|
|
1002 (let ((start (extent-start-position primary-selection-extent))
|
|
|
1003 (end (extent-end-position primary-selection-extent)))
|
|
|
1004 (cond ((< (point) start) end)
|
|
|
1005 ((> (point) end) start)
|
|
|
1006 ((> (- (point) start) (- end (point))) start)
|
|
|
1007 (t end)))
|
|
|
1008 previous-point)
|
|
|
1009 (point)))
|
|
|
1010
|
|
|
1011 (defun default-mouse-track-maybe-own-selection (pair type)
|
|
|
1012 (let ((start (car pair))
|
|
|
1013 (end (cdr pair)))
|
|
|
1014 (or (= start end) (push-mark (if (= (point) start) end start)))
|
|
|
1015 (cond (zmacs-regions
|
|
|
1016 (if (= start end)
|
|
|
1017 nil
|
|
|
1018 ;; #### UTTER KLUDGE.
|
|
|
1019 ;; If we don't have this sit-for here, then triple-clicking
|
|
|
1020 ;; will result in the line not being highlighted as it
|
|
|
1021 ;; should. What appears to be happening is this:
|
|
|
1022 ;;
|
|
|
1023 ;; -- each time the button goes down, the selection is
|
|
|
1024 ;; disowned (see comment "remove the existing selection
|
|
|
1025 ;; to unclutter the display", below).
|
|
|
1026 ;; -- this causes a SelectionClear event to be sent to
|
|
|
1027 ;; XEmacs.
|
|
|
1028 ;; -- each time the button goes up except the first, the
|
|
|
1029 ;; selection is owned again.
|
|
|
1030 ;; -- later, XEmacs processes the SelectionClear event.
|
|
|
1031 ;; The selection code attempts to keep track of the
|
|
|
1032 ;; time that it last asserted the selection, and
|
|
|
1033 ;; compare it to the time of the SelectionClear event,
|
|
|
1034 ;; to see if it's a bogus notification or not (as
|
|
|
1035 ;; is the case here). However, for some unknown
|
|
|
1036 ;; reason this doesn't work in the triple-clicking
|
|
|
1037 ;; case, and the selection code bogusly thinks this
|
|
|
1038 ;; SelectionClear event is the real thing.
|
|
|
1039 ;; -- putting the sit-for in causes the pending
|
|
|
1040 ;; SelectionClear events to get processed before
|
|
|
1041 ;; the selection is reasserted, so everything works
|
|
|
1042 ;; out OK.
|
|
|
1043 ;;
|
|
|
1044 ;; Presumably(?) this means there is a weird timing bug
|
|
|
1045 ;; in the selection code, but there's not a chance in hell
|
|
|
1046 ;; that I have the patience to track it down. Blame the
|
|
|
1047 ;; designers of X for fucking everything up so badly.
|
|
|
1048 ;;
|
|
|
1049 ;; This was originally a sit-for 0 but that wasn't
|
|
|
1050 ;; sufficient to make things work. Even this isn't
|
|
|
1051 ;; always sufficient but it seems to give something
|
|
|
1052 ;; approaching a 99% success rate. Making it higher yet
|
|
|
1053 ;; would help guarantee success with the price that the
|
|
|
1054 ;; delay would start to become noticable.
|
|
|
1055 ;;
|
|
|
1056 (sit-for 0.15 t)
|
|
|
1057 (zmacs-activate-region)))
|
|
|
1058 ((eq 'x (console-type))
|
|
|
1059 (if (= start end)
|
|
|
1060 (x-disown-selection type)
|
|
|
1061 (if (consp default-mouse-track-extent)
|
|
|
1062 ;; own the rectangular region
|
|
|
1063 ;; this is a hack
|
|
|
1064 (let ((r default-mouse-track-extent))
|
|
|
1065 (save-excursion
|
|
|
1066 (set-buffer (get-buffer-create " *rect yank temp buf*"))
|
|
|
1067 (while r
|
|
|
1068 (insert (extent-string (car r)) "\n")
|
|
|
1069 (setq r (cdr r)))
|
|
|
1070 (x-own-selection (buffer-substring (point-min) (point-max)))
|
|
|
1071 (kill-buffer (current-buffer))))
|
|
|
1072 (x-own-selection (cons (set-marker (make-marker) start)
|
|
|
1073 (set-marker (make-marker) end))
|
|
|
1074 type)))))
|
|
|
1075 (if (and (eq 'x (console-type))
|
|
|
1076 (not (= start end)))
|
|
|
1077 ;; I guess cutbuffers should do something with rectangles too.
|
|
|
1078 ;; does anybody use them?
|
|
|
1079 (x-store-cutbuffer (buffer-substring start end)))))
|
|
|
1080
|
|
|
1081 (defun default-mouse-track-deal-with-down-event (click-count)
|
|
|
1082 (let ((event default-mouse-track-down-event))
|
|
|
1083 (if (null event) nil
|
|
|
1084 (select-frame (event-frame event))
|
|
|
1085 (let ((adjust default-mouse-track-adjust)
|
|
|
1086 ;; ####When you click on the splash-screen,
|
|
|
1087 ;; event-{closest-,}point can be out of bounds. Should
|
|
|
1088 ;; event-closest-point really be allowed to return a bad
|
|
|
1089 ;; position like that? Maybe pixel_to_glyph_translation
|
|
|
1090 ;; needs to invalidate its cache when the buffer changes.
|
|
|
1091 ;; -dkindred@cs.cmu.edu
|
|
|
1092 (close-pos (save-excursion
|
|
|
1093 (set-buffer (event-buffer event))
|
|
|
1094 (let ((p (event-closest-point event)))
|
|
|
1095 (and p (min (max p (point-min)) (point-max))))))
|
|
|
1096 extent previous-point)
|
|
|
1097
|
|
|
1098 (if (not (event-window event))
|
|
|
1099 (error "not over window?"))
|
|
|
1100 (setq default-mouse-track-type
|
|
|
1101 (nth (mod (1- click-count)
|
|
|
1102 (length default-mouse-track-type-list))
|
|
|
1103 default-mouse-track-type-list))
|
|
|
1104 (setq default-mouse-track-window (event-window event))
|
|
|
1105 ;; Note that the extent used here is NOT the extent which
|
|
|
1106 ;; ends up as the value of zmacs-region-extent - this one is used
|
|
|
1107 ;; just during mouse-dragging.
|
|
|
1108 (setq default-mouse-track-extent
|
|
|
1109 (make-extent close-pos close-pos (event-buffer event)))
|
|
|
1110 (setq extent default-mouse-track-extent)
|
|
|
1111 (set-extent-face extent 'zmacs-region)
|
|
|
1112 ;; While the selection is being dragged out, give the selection extent
|
|
|
1113 ;; slightly higher priority than any mouse-highlighted extent, so that
|
|
|
1114 ;; the exact endpoints of the selection will be visible while the mouse
|
|
|
1115 ;; is down. Normally, the selection and mouse highlighting have the
|
|
|
1116 ;; same priority, so that conflicts between the two of them are
|
|
|
1117 ;; resolved by the usual size-and-endpoint-comparison method.
|
|
|
1118 (set-extent-priority extent (1+ mouse-highlight-priority))
|
|
|
1119 (if mouse-track-rectangle-p
|
|
|
1120 (setq default-mouse-track-extent
|
|
|
1121 (list default-mouse-track-extent)))
|
|
|
1122
|
|
|
1123 (setq previous-point
|
|
|
1124 (if (and adjust
|
|
|
1125 (markerp default-mouse-track-previous-point)
|
|
|
1126 (eq (current-buffer)
|
|
|
1127 (marker-buffer default-mouse-track-previous-point)))
|
|
|
1128 (marker-position default-mouse-track-previous-point)
|
|
|
1129 (point)))
|
|
|
1130 (default-mouse-track-set-point event default-mouse-track-window)
|
|
|
1131 (if (not adjust)
|
|
|
1132 (if (markerp default-mouse-track-previous-point)
|
|
|
1133 (set-marker default-mouse-track-previous-point (point))
|
|
|
1134 (setq default-mouse-track-previous-point (point-marker))))
|
|
|
1135 ;;
|
|
|
1136 ;; adjust point to a word or line boundary if appropriate
|
|
|
1137 (let ((anchor (default-mouse-track-anchor adjust previous-point)))
|
|
|
1138 (setq default-mouse-track-min-anchor
|
|
|
1139 (save-excursion (goto-char anchor)
|
|
|
1140 (funcall
|
|
|
1141 default-mouse-track-normalize-point-function
|
|
|
1142 default-mouse-track-type nil)
|
|
|
1143 (point)))
|
|
|
1144 (setq default-mouse-track-max-anchor
|
|
|
1145 (save-excursion (goto-char anchor)
|
|
|
1146 (funcall
|
|
|
1147 default-mouse-track-normalize-point-function
|
|
|
1148 default-mouse-track-type t)
|
|
|
1149 (point))))
|
|
|
1150 ;;
|
|
|
1151 ;; remove the existing selection to unclutter the display
|
|
|
1152 (if (not adjust)
|
|
|
1153 (cond (zmacs-regions
|
|
|
1154 (zmacs-deactivate-region))
|
|
|
1155 ((eq 'x (console-type))
|
|
|
1156 (x-disown-selection)))))
|
|
|
1157 (setq default-mouse-track-down-event nil))))
|
|
|
1158
|
|
|
1159 (defun default-mouse-track-down-hook (event click-count)
|
|
|
1160 (setq default-mouse-track-down-event (copy-event event))
|
|
|
1161 nil)
|
|
|
1162
|
|
|
1163 (defun default-mouse-track-cleanup-extents-hook ()
|
|
|
1164 (remove-hook 'pre-command-hook 'default-mouse-track-cleanup-extents-hook)
|
|
|
1165 (let ((extent default-mouse-track-extent))
|
|
|
1166 (if (consp extent) ; rectangle-p
|
|
|
1167 (mapcar 'delete-extent extent)
|
|
|
1168 (if extent
|
|
|
1169 (delete-extent extent)))))
|
|
|
1170
|
|
|
1171 (defun default-mouse-track-cleanup-hook ()
|
|
|
1172 (if zmacs-regions
|
|
|
1173 (funcall 'default-mouse-track-cleanup-extents-hook)
|
|
|
1174 (let ((extent default-mouse-track-extent)
|
|
|
1175 (func #'(lambda (e)
|
|
|
1176 (and (extent-live-p e)
|
|
|
1177 (set-extent-face e 'primary-selection)))))
|
|
|
1178 (add-hook 'pre-command-hook 'default-mouse-track-cleanup-extents-hook)
|
|
|
1179 (if (consp extent) ; rectangle-p
|
|
|
1180 (mapcar func extent)
|
|
|
1181 (if extent
|
|
|
1182 (funcall func extent))))))
|
|
|
1183
|
|
|
1184 (defun default-mouse-track-cleanup-extent ()
|
|
|
1185 (let ((dead-func
|
|
|
1186 (function (lambda (x)
|
|
|
1187 (or (not (extent-live-p x))
|
|
|
1188 (extent-detached-p x)))))
|
|
|
1189 (extent default-mouse-track-extent))
|
|
|
1190 (if (consp extent)
|
|
|
1191 (if (funcall dead-func extent)
|
|
|
1192 (let (newval)
|
|
|
1193 (mapcar (function (lambda (x)
|
|
|
1194 (if (not (funcall dead-func x))
|
|
|
1195 (setq newval (cons x newval)))))
|
|
|
1196 extent)
|
|
|
1197 (setq default-mouse-track-extent (nreverse newval))))
|
|
|
1198 (if (funcall dead-func extent)
|
|
|
1199 (setq default-mouse-track-extent nil)))))
|
|
|
1200
|
|
|
1201 (defun default-mouse-track-drag-hook (event click-count was-timeout)
|
|
|
1202 (default-mouse-track-deal-with-down-event click-count)
|
|
|
1203 (default-mouse-track-set-point event default-mouse-track-window)
|
|
|
1204 (default-mouse-track-cleanup-extent)
|
|
|
1205 (default-mouse-track-next-move default-mouse-track-min-anchor
|
|
|
1206 default-mouse-track-max-anchor
|
|
|
1207 default-mouse-track-extent)
|
|
|
1208 t)
|
|
|
1209
|
|
|
1210 (defun default-mouse-track-return-dragged-selection (event)
|
|
|
1211 (default-mouse-track-cleanup-extent)
|
|
|
1212 (let ((extent default-mouse-track-extent)
|
|
|
1213 result)
|
|
|
1214 (default-mouse-track-set-point-in-window event default-mouse-track-window)
|
|
|
1215 (default-mouse-track-next-move default-mouse-track-min-anchor
|
|
|
1216 default-mouse-track-max-anchor
|
|
|
1217 extent)
|
|
|
1218 (cond ((consp extent) ; rectangle-p
|
|
|
1219 (let ((first (car extent))
|
|
|
1220 (last (car (setq extent (nreverse extent)))))
|
|
|
1221 ;; nreverse is destructive so we need to reset this
|
|
|
1222 (setq default-mouse-track-extent extent)
|
|
|
1223 (setq result (cons (extent-start-position first)
|
|
|
1224 (extent-end-position last)))
|
|
|
1225 ;; kludge to fix up region when dragging backwards...
|
|
|
1226 (if (and (/= (point) (extent-start-position first))
|
|
|
1227 (/= (point) (extent-end-position last))
|
|
|
1228 (= (point) (extent-end-position first)))
|
|
|
1229 (goto-char (car result)))))
|
|
|
1230 (extent
|
|
|
1231 (setq result (cons (extent-start-position extent)
|
|
|
1232 (extent-end-position extent)))))
|
|
|
1233 ;; Minor kludge: if we're selecting in line-mode, include the
|
|
|
1234 ;; final newline. It's hard to do this in *-normalize-point.
|
|
|
1235 (if (and result (eq default-mouse-track-type 'line))
|
|
|
1236 (let ((end-p (= (point) (cdr result))))
|
|
|
1237 (goto-char (cdr result))
|
|
|
1238 (if (not (eobp))
|
|
|
1239 (setcdr result (1+ (cdr result))))
|
|
|
1240 (goto-char (if end-p (cdr result) (car result)))))
|
|
|
1241 ;;; ;; Minor kludge sub 2. If in char mode, and we drag the
|
|
|
1242 ;;; ;; mouse past EOL, include the newline.
|
|
|
1243 ;;; ;;
|
|
|
1244 ;;; ;; Major problem: can't easily distinguish between being
|
|
|
1245 ;;; ;; just past the last char on a line, and well past it,
|
|
|
1246 ;;; ;; to determine whether or not to include it in the region
|
|
|
1247 ;;; ;;
|
|
|
1248 ;;; (if nil ; (eq default-mouse-track-type 'char)
|
|
|
1249 ;;; (let ((after-end-p (and (not (eobp))
|
|
|
1250 ;;; (eolp)
|
|
|
1251 ;;; (> (point) (car result)))))
|
|
|
1252 ;;; (if after-end-p
|
|
|
1253 ;;; (progn
|
|
|
1254 ;;; (setcdr result (1+ (cdr result)))
|
|
|
1255 ;;; (goto-char (cdr result))))))
|
|
|
1256 result))
|
|
|
1257
|
|
|
1258 (defun default-mouse-track-drag-up-hook (event click-count)
|
|
|
1259 (let ((result (default-mouse-track-return-dragged-selection event)))
|
|
|
1260 (if result
|
|
|
1261 (default-mouse-track-maybe-own-selection result 'PRIMARY)))
|
|
|
1262 t)
|
|
|
1263
|
|
|
1264 (defun default-mouse-track-click-hook (event click-count)
|
|
|
1265 (default-mouse-track-drag-hook event click-count nil)
|
|
|
1266 (default-mouse-track-drag-up-hook event click-count)
|
|
|
1267 t)
|
|
|
1268
|
|
|
1269 (add-hook 'mouse-track-down-hook 'default-mouse-track-down-hook)
|
|
|
1270 (add-hook 'mouse-track-drag-hook 'default-mouse-track-drag-hook)
|
|
|
1271 (add-hook 'mouse-track-drag-up-hook 'default-mouse-track-drag-up-hook)
|
|
|
1272 (add-hook 'mouse-track-click-hook 'default-mouse-track-click-hook)
|
|
|
1273 (add-hook 'mouse-track-cleanup-hook 'default-mouse-track-cleanup-hook)
|
|
|
1274
|
|
|
1275
|
|
|
1276 ;;;;;;;;;;;; other mouse-track stuff (mostly associated with the
|
|
|
1277 ;;;;;;;;;;;; default handlers)
|
|
|
1278
|
|
|
1279 (defun mouse-track-default (event)
|
|
|
1280 "Invoke `mouse-track' with only the default handlers active."
|
|
|
1281 (interactive "e")
|
|
|
1282 (let ((mouse-track-down-hook 'default-mouse-track-down-hook)
|
|
|
1283 (mouse-track-drag-hook 'default-mouse-track-drag-hook)
|
|
|
1284 (mouse-track-drag-up-hook 'default-mouse-track-drag-up-hook)
|
|
|
1285 (mouse-track-click-hook 'default-mouse-track-click-hook)
|
|
|
1286 (mouse-track-cleanup-hook 'default-mouse-track-cleanup-hook))
|
|
|
1287 (mouse-track event)))
|
|
|
1288
|
|
|
1289 (defun mouse-track-do-rectangle (event)
|
|
|
1290 "Like `mouse-track' but selects rectangles instead of regions."
|
|
|
1291 (interactive "e")
|
|
|
1292 (let ((mouse-track-rectangle-p t))
|
|
|
1293 (mouse-track event)))
|
|
|
1294
|
|
|
1295 (defun mouse-track-adjust (event)
|
|
|
1296 "Extend the existing selection. This should be bound to a mouse button.
|
|
|
1297 The selection will be enlarged or shrunk so that the point of the mouse
|
|
|
1298 click is one of its endpoints. This function in fact behaves fairly
|
|
|
1299 similarly to `mouse-track', but begins by extending the existing selection
|
|
|
1300 (or creating a new selection from the previous text cursor position to
|
|
|
1301 the current mouse position) instead of creating a new, empty selection.
|
|
|
1302
|
|
|
1303 The mouse-track handlers are run from this command just like from
|
|
|
1304 `mouse-track'. Therefore, do not call this command from a mouse-track
|
|
|
1305 handler!"
|
|
|
1306 (interactive "e")
|
|
|
1307 (let ((default-mouse-track-adjust t))
|
|
|
1308 (mouse-track event)))
|
|
|
1309
|
|
|
1310 (defun mouse-track-adjust-default (event)
|
|
|
1311 "Extend the existing selection, using only the default handlers.
|
|
|
1312 This is just like `mouse-track-adjust' but will override any
|
|
|
1313 custom mouse-track handlers that the user may have installed."
|
|
|
1314 (interactive "e")
|
|
|
1315 (let ((default-mouse-track-adjust t))
|
|
|
1316 (mouse-track-default event)))
|
|
|
1317
|
|
|
1318 (defvar mouse-track-insert-selected-region nil)
|
|
|
1319
|
|
|
1320 (defun mouse-track-insert-drag-up-hook (event click-count)
|
|
|
1321 (setq mouse-track-insert-selected-region
|
|
|
1322 (default-mouse-track-return-dragged-selection event)))
|
|
|
1323
|
|
|
1324 (defun mouse-track-insert (event &optional delete)
|
|
|
1325 "Make a selection with the mouse and insert it at point.
|
|
|
1326 This is exactly the same as the `mouse-track' command on \\[mouse-track],
|
|
|
1327 except that point is not moved; the selected text is immediately inserted
|
|
|
1328 after being selected\; and the selection is immediately disowned afterwards."
|
|
|
1329 (interactive "*e")
|
|
|
1330 (setq mouse-track-insert-selected-region nil)
|
|
|
1331 (let ((mouse-track-drag-up-hook 'mouse-track-insert-drag-up-hook)
|
|
|
1332 (mouse-track-click-hook 'mouse-track-insert-click-hook)
|
|
|
1333 s)
|
|
|
1334 (save-excursion
|
|
|
1335 (save-window-excursion
|
|
|
1336 (mouse-track event)
|
|
|
1337 (if (consp mouse-track-insert-selected-region)
|
|
|
1338 (let ((pair mouse-track-insert-selected-region))
|
|
|
1339 (setq s (prog1
|
|
|
1340 (buffer-substring (car pair) (cdr pair))
|
|
|
1341 (if delete
|
|
|
1342 (kill-region (car pair) (cdr pair)))))))))
|
|
|
1343 (or (null s) (equal s "") (insert s))))
|
|
|
1344
|
|
|
1345 (defun mouse-track-insert-click-hook (event click-count)
|
|
|
1346 (default-mouse-track-drag-hook event click-count nil)
|
|
|
1347 (mouse-track-insert-drag-up-hook event click-count)
|
|
|
1348 t)
|
|
|
1349
|
|
|
1350 (defun mouse-track-delete-and-insert (event)
|
|
|
1351 "Make a selection with the mouse and insert it at point.
|
|
|
1352 This is exactly the same as the `mouse-track' command on \\[mouse-track],
|
|
|
1353 except that point is not moved; the selected text is immediately inserted
|
|
|
1354 after being selected\; and the text of the selection is deleted."
|
|
|
1355 (interactive "*e")
|
|
|
1356 (mouse-track-insert event t))
|
|
|
1357
|
|
|
1358 ;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
1359
|
|
|
1360
|
|
|
1361 (defvar inhibit-help-echo nil
|
|
|
1362 "Inhibits display of `help-echo' extent properties in the minibuffer.")
|
|
|
1363 (defvar last-help-echo-object nil)
|
|
|
1364 (defvar help-echo-owns-message nil)
|
|
|
1365
|
|
|
1366 (defun clear-help-echo (&optional ignored-frame)
|
|
|
1367 (if help-echo-owns-message
|
|
|
1368 (progn
|
|
|
1369 (setq help-echo-owns-message nil
|
|
|
1370 last-help-echo-object nil)
|
|
|
1371 (clear-message 'help-echo))))
|
|
|
1372
|
|
|
1373 (defun show-help-echo (mess)
|
|
|
1374 ;; (clear-help-echo)
|
|
|
1375 (setq help-echo-owns-message t)
|
|
|
1376 (display-message 'help-echo mess))
|
|
|
1377
|
|
|
1378 (add-hook 'mouse-leave-frame-hook 'clear-help-echo)
|
|
|
1379
|
|
|
1380 ;; It may be a good idea to move this to C, for better performance of
|
|
|
1381 ;; extent highlighting and pointer changes.
|
|
|
1382 (defun default-mouse-motion-handler (event)
|
|
|
1383 "For use as the value of `mouse-motion-handler'.
|
|
|
1384 This implements the various pointer-shape variables,
|
|
|
1385 as well as extent highlighting, help-echo, toolbar up/down,
|
|
|
1386 and `mode-motion-hook'."
|
|
|
1387 (let* ((frame (or (event-frame event) (selected-frame)))
|
|
|
1388 (window (event-window event))
|
|
|
1389 (buffer (event-buffer event))
|
|
|
1390 (modeline-point (and buffer (event-modeline-position event)))
|
|
|
1391 (modeline-string (and modeline-point
|
|
|
1392 (symbol-value-in-buffer
|
|
|
1393 'generated-modeline-string buffer)))
|
|
|
1394 ;; point must be invalidated by modeline-point.
|
|
|
1395 (point (and buffer (not modeline-point)
|
|
|
1396 (event-point event)))
|
|
|
1397 (extent (or (and point
|
|
|
1398 (extent-at point buffer 'mouse-face))
|
|
|
1399 (and modeline-point
|
|
|
1400 (extent-at modeline-point modeline-string
|
|
|
1401 ;; Modeline extents don't have a
|
|
|
1402 ;; mouse-face property set.
|
|
|
1403 'help-echo))))
|
|
|
1404 (glyph-extent1 (event-glyph-extent event))
|
|
|
1405 (glyph-extent (and glyph-extent1
|
|
|
1406 (extent-live-p glyph-extent1)
|
|
|
1407 glyph-extent1))
|
|
|
1408 ;; This is an extent:
|
|
|
1409 (user-pointer1 (or (and glyph-extent
|
|
|
1410 (extent-property glyph-extent 'pointer)
|
|
|
1411 glyph-extent)
|
|
|
1412 (and point (extent-at point buffer 'pointer))
|
|
|
1413 (and modeline-point
|
|
|
1414 (extent-at modeline-point modeline-string
|
|
|
1415 'pointer))))
|
|
|
1416 ;; And this should be a glyph:
|
|
|
1417 (user-pointer (and user-pointer1 (extent-live-p user-pointer1)
|
|
|
1418 (extent-property user-pointer1 'pointer)))
|
|
|
1419 (button (event-toolbar-button event))
|
|
|
1420 (help (or (and glyph-extent (extent-property glyph-extent 'help-echo)
|
|
|
1421 glyph-extent)
|
|
|
1422 (and button (not (null (toolbar-button-help-string button)))
|
|
|
1423 button)
|
|
|
1424 (and point
|
|
|
1425 (extent-at point buffer 'help-echo))
|
|
|
1426 (and modeline-point
|
|
|
1427 (extent-at modeline-point modeline-string
|
|
|
1428 'help-echo))))
|
|
|
1429 ;; vars is a list of glyph variables to check for a pointer
|
|
|
1430 ;; value.
|
|
|
1431 (vars (cond
|
|
|
1432 ;; Checking if button is non-nil is not sufficent
|
|
|
1433 ;; since the pointer could be over a blank portion
|
|
|
1434 ;; of the toolbar.
|
|
|
1435 ((event-over-toolbar-p event)
|
|
|
1436 '(toolbar-pointer-glyph nontext-pointer-glyph
|
|
|
1437 text-pointer-glyph))
|
|
|
1438 ((or extent glyph-extent)
|
|
|
1439 '(selection-pointer-glyph text-pointer-glyph))
|
|
|
1440 ((event-over-modeline-p event)
|
|
|
1441 '(modeline-pointer-glyph nontext-pointer-glyph
|
|
|
1442 text-pointer-glyph))
|
|
|
1443 (point '(text-pointer-glyph))
|
|
|
1444 (buffer '(nontext-pointer-glyph text-pointer-glyph))
|
|
|
1445 (t '(nontext-pointer-glyph text-pointer-glyph))))
|
|
|
1446 pointer)
|
|
|
1447 (and user-pointer (glyphp user-pointer)
|
|
|
1448 (push 'user-pointer vars))
|
|
|
1449 (while (and vars (not (pointer-image-instance-p pointer)))
|
|
|
1450 (setq pointer (glyph-image-instance (symbol-value (car vars))
|
|
|
1451 (or window frame))
|
|
|
1452 vars (cdr vars)))
|
|
|
1453
|
|
|
1454 (if (pointer-image-instance-p pointer)
|
|
|
1455 (set-frame-pointer frame pointer))
|
|
|
1456
|
|
|
1457 ;; If last-pressed-toolbar-button is not nil, then check and see
|
|
|
1458 ;; if we have moved to a new button and adjust the down flags
|
|
|
1459 ;; accordingly.
|
|
|
1460 (when (and (featurep 'toolbar) toolbar-active)
|
|
|
1461 (unless (eq last-pressed-toolbar-button button)
|
|
|
1462 (release-previous-toolbar-button event)
|
|
|
1463 (and button (press-toolbar-button event))))
|
|
|
1464
|
|
|
1465 (cond (extent (highlight-extent extent t))
|
|
|
1466 (glyph-extent (highlight-extent glyph-extent t))
|
|
|
1467 (t (highlight-extent nil nil)))
|
|
|
1468 (cond ((extentp help)
|
|
|
1469 (or inhibit-help-echo
|
|
|
1470 (eq help last-help-echo-object) ;save some time
|
|
|
1471 (let ((hprop (extent-property help 'help-echo)))
|
|
|
1472 (setq last-help-echo-object help)
|
|
|
1473 (or (stringp hprop)
|
|
|
1474 (setq hprop (funcall hprop help)))
|
|
|
1475 (and hprop (show-help-echo hprop)))))
|
|
|
1476 ((and (featurep 'toolbar)
|
|
|
1477 (toolbar-button-p help)
|
|
|
1478 (toolbar-button-enabled-p help))
|
|
|
1479 (or (not toolbar-help-enabled)
|
|
|
1480 (eq help last-help-echo-object) ;save some time
|
|
|
1481 (let ((hstring (toolbar-button-help-string button)))
|
|
|
1482 (setq last-help-echo-object help)
|
|
|
1483 (or (stringp hstring)
|
|
|
1484 (setq hstring (funcall hstring help)))
|
|
|
1485 (show-help-echo hstring))))
|
|
|
1486 (last-help-echo-object
|
|
|
1487 (clear-help-echo)))
|
|
|
1488 (if mouse-grabbed-buffer (setq buffer mouse-grabbed-buffer))
|
|
|
1489 (if (and buffer (symbol-value-in-buffer 'mode-motion-hook buffer nil))
|
|
|
1490 (with-current-buffer buffer
|
|
|
1491 (run-hook-with-args 'mode-motion-hook event)
|
|
|
1492
|
|
|
1493 ;; If the mode-motion-hook created a highlightable extent around
|
|
|
1494 ;; the mouse-point, highlight it right away. Otherwise it wouldn't
|
|
|
1495 ;; be highlighted until the *next* motion event came in.
|
|
|
1496 (if (and point
|
|
|
1497 (null extent)
|
|
|
1498 (setq extent (extent-at point
|
|
|
1499 (event-buffer event) ; not buffer
|
|
|
1500 'mouse-face)))
|
|
|
1501 (highlight-extent extent t)))))
|
|
|
1502 nil)
|
|
|
1503
|
|
|
1504 (setq mouse-motion-handler 'default-mouse-motion-handler)
|
|
|
1505
|
|
|
1506 ;;; mouse.el ends here
|
