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462
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1 /* The event_stream interface for X11 with gtk, and/or tty frames.
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2 Copyright (C) 1991-5, 1997 Free Software Foundation, Inc.
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3 Copyright (C) 1995 Sun Microsystems, Inc.
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4 Copyright (C) 1996 Ben Wing.
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5 Copyright (C) 2000 William Perry.
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6
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7 This file is part of XEmacs.
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8
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9 XEmacs is free software; you can redistribute it and/or modify it
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10 under the terms of the GNU General Public License as published by the
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11 Free Software Foundation; either version 2, or (at your option) any
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12 later version.
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13
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14 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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17 for more details.
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18
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19 You should have received a copy of the GNU General Public License
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20 along with XEmacs; see the file COPYING. If not, write to
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21 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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22 Boston, MA 02111-1307, USA. */
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23
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24 /* This file is heavily based upon event-Xt.c */
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25
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26 /* Synched up with: Not in FSF. */
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27
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28 #include <config.h>
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29 #include "lisp.h"
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30
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31 #include "console-gtk.h"
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32
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33 #include "blocktype.h"
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34 #include "buffer.h"
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35 #include "commands.h"
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36 #include "console.h"
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37 #include "console-tty.h"
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38 #include "events.h"
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39 #include "frame.h"
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40 #include "objects-gtk.h"
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41 #include "process.h"
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42 #include "redisplay.h"
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43 #include "elhash.h"
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44
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45 #include "gtk-xemacs.h"
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46
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47 #include "systime.h"
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48 #include "sysproc.h" /* for MAXDESC */
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49
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50 #ifdef FILE_CODING
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51 #include "lstream.h"
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52 #include "file-coding.h"
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53 #endif
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54
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55 #include <gdk/gdkkeysyms.h>
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56
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57 #ifdef HAVE_DRAGNDROP
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58 #include "dragdrop.h"
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59 #endif
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60
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61 #if defined (HAVE_OFFIX_DND)
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62 #include "offix.h"
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63 #endif
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64
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65 #include "events-mod.h"
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66
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67 #include <gdk/gdkx.h>
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68
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69 static struct event_stream *gtk_event_stream;
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70
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71 /* Do we accept events sent by other clients? */
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72 int gtk_allow_sendevents;
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73
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74 static int process_events_occurred;
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75 static int tty_events_occurred;
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76
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77 /* Mask of bits indicating the descriptors that we wait for input on */
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78 extern SELECT_TYPE input_wait_mask, process_only_mask, tty_only_mask;
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79
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80 static Lisp_Object gtk_keysym_to_emacs_keysym ();
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81 void debug_process_finalization (struct Lisp_Process *p);
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82 gboolean emacs_gtk_event_handler (GtkWidget *wid /* unused */,
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83 GdkEvent *event,
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84 gpointer closure /* unused */);
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85
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86 static int last_quit_check_signal_tick_count;
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87
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88 Lisp_Object Qkey_mapping;
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89 Lisp_Object Qsans_modifiers;
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90
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91 static void enqueue_gtk_dispatch_event (Lisp_Object event);
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92
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93 #define IS_MODIFIER_KEY(keysym) \
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94 ((((keysym) >= GDK_Shift_L) && ((keysym) <= GDK_Hyper_R)) \
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95 || ((keysym) == GDK_Mode_switch) \
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96 || ((keysym) == GDK_Num_Lock))
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97
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98
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99
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100 /************************************************************************/
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101 /* magic-event handling */
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102 /************************************************************************/
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103 static void
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104 handle_focus_event_1 (struct frame *f, int in_p)
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105 {
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106 /* We don't want to handle the focus change now, because we might
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107 be in an accept-process-output, sleep-for, or sit-for. So
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108 we enqueue it.
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109
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110 Actually, we half handle it: we handle it as far as changing the
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111 box cursor for redisplay, but we don't call any hooks or do any
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112 select-frame stuff until after the sit-for.
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113 */
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114
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115 if (in_p)
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116 {
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117 GTK_WIDGET_SET_FLAGS (FRAME_GTK_TEXT_WIDGET (f), GTK_HAS_FOCUS);
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118 }
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119 else
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120 {
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121 GTK_WIDGET_UNSET_FLAGS (FRAME_GTK_TEXT_WIDGET (f), GTK_HAS_FOCUS);
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122 }
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123 gtk_widget_grab_focus (FRAME_GTK_TEXT_WIDGET (f));
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124 gtk_widget_draw_focus (FRAME_GTK_TEXT_WIDGET (f));
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125
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126 {
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127 Lisp_Object frm;
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128 Lisp_Object conser;
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129 struct gcpro gcpro1;
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130
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131 XSETFRAME (frm, f);
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132 conser = Fcons (frm, Fcons (FRAME_DEVICE (f), in_p ? Qt : Qnil));
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133 GCPRO1 (conser);
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134
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135 emacs_handle_focus_change_preliminary (conser);
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136 enqueue_magic_eval_event (emacs_handle_focus_change_final,
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137 conser);
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138 UNGCPRO;
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139 }
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140 }
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141
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142 /* both GDK_MAP and GDK_VISIBILITY_NOTIFY can cause this
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143 JV is_visible has the same semantics as f->visible*/
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144 static void
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145 change_frame_visibility (struct frame *f, int is_visible)
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146 {
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147 Lisp_Object frame;
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148
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149 XSETFRAME (frame, f);
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150
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151 if (!FRAME_VISIBLE_P (f) && is_visible)
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152 {
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153 FRAME_VISIBLE_P (f) = is_visible;
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154 /* This improves the double flicker when uniconifying a frame
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155 some. A lot of it is not showing a buffer which has changed
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156 while the frame was iconified. To fix it further requires
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157 the good 'ol double redisplay structure. */
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158 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f);
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159 va_run_hook_with_args (Qmap_frame_hook, 1, frame);
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160 }
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161 else if (FRAME_VISIBLE_P (f) && !is_visible)
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162 {
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163 FRAME_VISIBLE_P (f) = 0;
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164 va_run_hook_with_args (Qunmap_frame_hook, 1, frame);
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165 }
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166 else if (FRAME_VISIBLE_P (f) * is_visible < 0)
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167 {
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168 FRAME_VISIBLE_P(f) = - FRAME_VISIBLE_P(f);
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169 if (FRAME_REPAINT_P (f))
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170 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f);
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171 va_run_hook_with_args (Qmap_frame_hook, 1, frame);
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172 }
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173 }
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174
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175 static void
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176 handle_map_event (struct frame *f, GdkEvent *event)
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177 {
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178 Lisp_Object frame;
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179
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180 XSETFRAME (frame, f);
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181 if (event->any.type == GDK_MAP)
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182 {
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183 FRAME_GTK_TOTALLY_VISIBLE_P (f) = 1;
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184 change_frame_visibility (f, 1);
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185 }
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186 else
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187 {
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188 FRAME_GTK_TOTALLY_VISIBLE_P (f) = 0;
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189 change_frame_visibility (f, 0);
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190 /* Calling Fframe_iconified_p is the only way we have to
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191 correctly update FRAME_ICONIFIED_P */
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192 Fframe_iconified_p (frame);
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193 }
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194 }
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195
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196 static void
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197 handle_client_message (struct frame *f, GdkEvent *event)
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198 {
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199 Lisp_Object frame;
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200
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201 XSETFRAME (frame, f);
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202
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203 /* The event-Xt code used to handle WM_DELETE_WINDOW here, but we
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204 handle that directly in frame-gtk.c */
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205
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206 if (event->client.message_type == gdk_atom_intern ("WM_PROTOCOLS", 0) &&
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207 (GdkAtom) event->client.data.l[0] == gdk_atom_intern ("WM_TAKE_FOCUS", 0))
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208 {
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209 handle_focus_event_1 (f, 1);
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210 }
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211 }
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212
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213 static void
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214 emacs_gtk_handle_magic_event (struct Lisp_Event *emacs_event)
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215 {
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216 /* This function can GC */
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217 GdkEvent *event = &emacs_event->event.magic.underlying_gdk_event;
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218 struct frame *f = XFRAME (EVENT_CHANNEL (emacs_event));
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219
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220 if (!FRAME_LIVE_P (f))
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221 return;
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222
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223 switch (event->any.type)
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224 {
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225 case GDK_CLIENT_EVENT:
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226 handle_client_message (f, event);
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227 break;
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228
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229 case GDK_FOCUS_CHANGE:
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230 handle_focus_event_1 (f, event->focus_change.in);
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231 break;
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232
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233 case GDK_MAP:
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234 case GDK_UNMAP:
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235 handle_map_event (f, event);
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236 break;
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237
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238 case GDK_ENTER_NOTIFY:
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239 if (event->crossing.detail != GDK_NOTIFY_INFERIOR)
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240 {
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241 Lisp_Object frame;
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242
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243 XSETFRAME (frame, f);
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244 /* FRAME_X_MOUSE_P (f) = 1; */
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245 va_run_hook_with_args (Qmouse_enter_frame_hook, 1, frame);
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246 }
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247 break;
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248
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249 case GDK_LEAVE_NOTIFY:
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250 if (event->crossing.detail != GDK_NOTIFY_INFERIOR)
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251 {
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252 Lisp_Object frame;
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253
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254 XSETFRAME (frame, f);
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255 /* FRAME_X_MOUSE_P (f) = 0; */
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256 va_run_hook_with_args (Qmouse_leave_frame_hook, 1, frame);
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257 }
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258 break;
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259
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260 case GDK_VISIBILITY_NOTIFY: /* window visiblity has changed */
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261 if (event->visibility.window == GET_GTK_WIDGET_WINDOW (FRAME_GTK_SHELL_WIDGET (f)))
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262 {
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263 FRAME_GTK_TOTALLY_VISIBLE_P (f) =
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264 (event->visibility.state == GDK_VISIBILITY_UNOBSCURED);
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265 /* Note that the fvwm pager only sends VisibilityNotify when
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266 changing pages. Is this all we need to do ? JV */
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267 /* Nope. We must at least trigger a redisplay here.
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268 Since this case seems similar to MapNotify, I've
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269 factored out some code to change_frame_visibility().
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270 This triggers the necessary redisplay and runs
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271 (un)map-frame-hook. - dkindred@cs.cmu.edu */
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272 /* Changed it again to support the tristate visibility flag */
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273 change_frame_visibility (f, (event->visibility.state
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274 != GDK_VISIBILITY_FULLY_OBSCURED) ? 1 : -1);
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275 }
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276 break;
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277
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278 default:
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279 break;
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280 }
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281 }
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282
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283 /************************************************************************/
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284 /* Gtk to Emacs event conversion */
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285 /************************************************************************/
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286
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287 static int
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288 keysym_obeys_caps_lock_p (guint sym, struct device *d)
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289 {
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290 struct gtk_device *gd = DEVICE_GTK_DATA (d);
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291 /* Eeeeevil hack. Don't apply Caps_Lock to things that aren't alphabetic
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292 characters, where "alphabetic" means something more than simply A-Z.
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293 That is, if Caps_Lock is down, typing ESC doesn't produce Shift-ESC.
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294 But if shift-lock is down, then it does. */
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295 if (gd->lock_interpretation == GDK_Shift_Lock)
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296 return 1;
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297
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298 return
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299 ((sym >= GDK_A) && (sym <= GDK_Z)) ||
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300 ((sym >= GDK_a) && (sym <= GDK_z)) ||
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301 ((sym >= GDK_Agrave) && (sym <= GDK_Odiaeresis)) ||
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302 ((sym >= GDK_agrave) && (sym <= GDK_odiaeresis)) ||
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303 ((sym >= GDK_Ooblique) && (sym <= GDK_Thorn)) ||
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304 ((sym >= GDK_oslash) && (sym <= GDK_thorn));
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305 }
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306
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307 static void
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308 set_last_server_timestamp (struct device *d, GdkEvent *gdk_event)
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309 {
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310 guint32 t;
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311 switch (gdk_event->type)
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312 {
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313 case GDK_KEY_PRESS:
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314 case GDK_KEY_RELEASE: t = gdk_event->key.time; break;
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315 case GDK_BUTTON_PRESS:
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316 case GDK_2BUTTON_PRESS:
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317 case GDK_3BUTTON_PRESS:
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318 case GDK_BUTTON_RELEASE: t = gdk_event->button.time; break;
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319 case GDK_ENTER_NOTIFY:
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320 case GDK_LEAVE_NOTIFY: t = gdk_event->crossing.time; break;
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321 case GDK_MOTION_NOTIFY: t = gdk_event->motion.time; break;
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322 case GDK_PROPERTY_NOTIFY: t = gdk_event->property.time; break;
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323 case GDK_SELECTION_CLEAR:
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324 case GDK_SELECTION_REQUEST:
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325 case GDK_SELECTION_NOTIFY: t = gdk_event->selection.time; break;
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326 default: return;
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327 }
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328 DEVICE_GTK_LAST_SERVER_TIMESTAMP (d) = t;
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329 }
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330
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331 static Lisp_Object
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332 gtk_keysym_to_emacs_keysym (guint keysym, int simple_p)
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333 {
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334 char *name;
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335 if (keysym >= GDK_exclam && keysym <= GDK_asciitilde)
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336 /* We must assume that the X keysym numbers for the ASCII graphic
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337 characters are the same as their ASCII codes. */
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338 return make_char (keysym);
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339
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340 switch (keysym)
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341 {
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342 /* These would be handled correctly by the default case, but by
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343 special-casing them here we don't garbage a string or call
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344 intern(). */
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345 case GDK_BackSpace: return QKbackspace;
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346 case GDK_Tab: return QKtab;
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347 case GDK_Linefeed: return QKlinefeed;
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348 case GDK_Return: return QKreturn;
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349 case GDK_Escape: return QKescape;
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350 case GDK_space: return QKspace;
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351 case GDK_Delete: return QKdelete;
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352 case 0: return Qnil;
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353 default:
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354 if (simple_p) return Qnil;
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355 /* !!#### not Mule-ized */
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356 name = gdk_keyval_name (keysym);
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357 if (!name || !name[0])
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358 /* This happens if there is a mismatch between the Xlib of
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359 XEmacs and the Xlib of the X server...
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360
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361 Let's hard-code in some knowledge of common keysyms introduced
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362 in recent X11 releases. Snarfed from X11/keysymdef.h
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363
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364 Probably we should add some stuff here for X11R6. */
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365 switch (keysym)
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366 {
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367 case 0xFF95: return KEYSYM ("kp-home");
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368 case 0xFF96: return KEYSYM ("kp-left");
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369 case 0xFF97: return KEYSYM ("kp-up");
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370 case 0xFF98: return KEYSYM ("kp-right");
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371 case 0xFF99: return KEYSYM ("kp-down");
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372 case 0xFF9A: return KEYSYM ("kp-prior");
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373 case 0xFF9B: return KEYSYM ("kp-next");
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374 case 0xFF9C: return KEYSYM ("kp-end");
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375 case 0xFF9D: return KEYSYM ("kp-begin");
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376 case 0xFF9E: return KEYSYM ("kp-insert");
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377 case 0xFF9F: return KEYSYM ("kp-delete");
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378
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379 case 0x1005FF10: return KEYSYM ("SunF36"); /* labeled F11 */
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380 case 0x1005FF11: return KEYSYM ("SunF37"); /* labeled F12 */
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381 default:
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382 {
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383 char buf [64];
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384 sprintf (buf, "unknown-keysym-0x%X", (int) keysym);
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385 return KEYSYM (buf);
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386 }
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387 }
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388 /* If it's got a one-character name, that's good enough. */
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389 if (!name[1])
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390 return make_char (name[0]);
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391
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|
|
392 /* If it's in the "Keyboard" character set, downcase it.
|
|
|
393 The case of those keysyms is too totally random for us to
|
|
|
394 force anyone to remember them.
|
|
|
395 The case of the other character sets is significant, however.
|
|
|
396 */
|
|
|
397 if ((((unsigned int) keysym) & (~0x1FF)) == ((unsigned int) 0xFE00))
|
|
|
398 {
|
|
|
399 char buf [255];
|
|
|
400 char *s1, *s2;
|
|
|
401 for (s1 = name, s2 = buf; *s1; s1++, s2++) {
|
|
|
402 if (*s1 == '_') {
|
|
|
403 *s2 = '-';
|
|
|
404 } else {
|
|
|
405 *s2 = tolower (* (unsigned char *) s1);
|
|
|
406 }
|
|
|
407 }
|
|
|
408 *s2 = 0;
|
|
|
409 return KEYSYM (buf);
|
|
|
410 }
|
|
|
411 return KEYSYM (name);
|
|
|
412 }
|
|
|
413 }
|
|
|
414
|
|
|
415 static Lisp_Object
|
|
|
416 gtk_to_emacs_keysym (struct device *d, GdkEventKey *event, int simple_p)
|
|
|
417 /* simple_p means don't try too hard (ASCII only) */
|
|
|
418 {
|
|
|
419 if (event->length != 1)
|
|
|
420 {
|
|
|
421 #ifdef FILE_CODING
|
|
|
422 /* Generate multiple emacs events */
|
|
|
423 Emchar ch;
|
|
|
424 Lisp_Object instream, fb_instream;
|
|
|
425 Lstream *istr;
|
|
|
426 struct gcpro gcpro1, gcpro2;
|
|
|
427
|
|
|
428 fb_instream =
|
|
|
429 make_fixed_buffer_input_stream ((unsigned char *) event->string, event->length);
|
|
|
430
|
|
|
431 /* ### Use Fget_coding_system (Vcomposed_input_coding_system) */
|
|
|
432 instream =
|
|
|
433 make_decoding_input_stream (XLSTREAM (fb_instream),
|
|
|
434 Fget_coding_system (Qundecided));
|
|
|
435
|
|
|
436 istr = XLSTREAM (instream);
|
|
|
437
|
|
|
438 GCPRO2 (instream, fb_instream);
|
|
|
439 while ((ch = Lstream_get_emchar (istr)) != EOF)
|
|
|
440 {
|
|
|
441 Lisp_Object emacs_event = Fmake_event (Qnil, Qnil);
|
|
|
442 struct Lisp_Event *ev = XEVENT (emacs_event);
|
|
|
443 ev->channel = DEVICE_CONSOLE (d);
|
|
|
444 ev->event_type = key_press_event;
|
|
|
445 ev->timestamp = event->time;
|
|
|
446 ev->event.key.modifiers = 0;
|
|
|
447 ev->event.key.keysym = make_char (ch);
|
|
|
448 enqueue_gtk_dispatch_event (emacs_event);
|
|
|
449 }
|
|
|
450 Lstream_close (istr);
|
|
|
451 UNGCPRO;
|
|
|
452 Lstream_delete (istr);
|
|
|
453 Lstream_delete (XLSTREAM (fb_instream));
|
|
|
454 #else
|
|
|
455 int i;
|
|
|
456 for (i = 0; i < event->length; i++)
|
|
|
457 {
|
|
|
458 Lisp_Object emacs_event = Fmake_event (Qnil, Qnil);
|
|
|
459 struct Lisp_Event *ev = XEVENT (emacs_event);
|
|
|
460 ev->channel = DEVICE_CONSOLE (d);
|
|
|
461 ev->event_type = key_press_event;
|
|
|
462 ev->timestamp = event->time;
|
|
|
463 ev->event.key.modifiers = 0;
|
|
|
464 ev->event.key.keysym = make_char (event->string[i]);
|
|
|
465 enqueue_gtk_dispatch_event (emacs_event);
|
|
|
466 }
|
|
|
467 #endif
|
|
|
468 if (IS_MODIFIER_KEY (event->keyval) || (event->keyval == GDK_Mode_switch))
|
|
|
469 return (Qnil);
|
|
|
470 return (gtk_keysym_to_emacs_keysym (event->keyval, simple_p));
|
|
|
471 }
|
|
|
472 else
|
|
|
473 {
|
|
|
474 if (IS_MODIFIER_KEY (event->keyval) || (event->keyval == GDK_Mode_switch))
|
|
|
475 return (Qnil);
|
|
|
476 return (gtk_keysym_to_emacs_keysym (event->keyval, simple_p));
|
|
|
477 }
|
|
|
478 }
|
|
|
479
|
|
|
480
|
|
|
481 /************************************************************************/
|
|
|
482 /* timeout events */
|
|
|
483 /************************************************************************/
|
|
|
484
|
|
|
485 static int timeout_id_tick;
|
|
|
486
|
|
|
487 struct GTK_timeout {
|
|
|
488 int id;
|
|
|
489 guint timeout_id;
|
|
|
490 struct GTK_timeout *next;
|
|
|
491 } *pending_timeouts, *completed_timeouts;
|
|
|
492
|
|
|
493 struct GTK_timeout_blocktype
|
|
|
494 {
|
|
|
495 Blocktype_declare (struct GTK_timeout);
|
|
|
496 } *the_GTK_timeout_blocktype;
|
|
|
497
|
|
|
498 /* called by the gtk main loop */
|
|
|
499 static gint
|
|
|
500 gtk_timeout_callback (gpointer closure)
|
|
|
501 {
|
|
|
502 struct GTK_timeout *timeout = (struct GTK_timeout *) closure;
|
|
|
503 struct GTK_timeout *t2 = pending_timeouts;
|
|
|
504
|
|
|
505 /* Remove this one from the list of pending timeouts */
|
|
|
506 if (t2 == timeout)
|
|
|
507 pending_timeouts = pending_timeouts->next;
|
|
|
508 else
|
|
|
509 {
|
|
|
510 while (t2->next && t2->next != timeout) t2 = t2->next;
|
|
|
511 assert (t2->next);
|
|
|
512 t2->next = t2->next->next;
|
|
|
513 }
|
|
|
514 /* Add this one to the list of completed timeouts */
|
|
|
515 timeout->next = completed_timeouts;
|
|
|
516 completed_timeouts = timeout;
|
|
|
517 return(FALSE);
|
|
|
518 }
|
|
|
519
|
|
|
520 static int
|
|
|
521 emacs_gtk_add_timeout (EMACS_TIME thyme)
|
|
|
522 {
|
|
|
523 struct GTK_timeout *timeout = Blocktype_alloc (the_GTK_timeout_blocktype);
|
|
|
524 EMACS_TIME current_time;
|
|
|
525 int milliseconds;
|
|
|
526
|
|
|
527 timeout->id = timeout_id_tick++;
|
|
|
528 timeout->next = pending_timeouts;
|
|
|
529 pending_timeouts = timeout;
|
|
|
530 EMACS_GET_TIME (current_time);
|
|
|
531 EMACS_SUB_TIME (thyme, thyme, current_time);
|
|
|
532 milliseconds = EMACS_SECS (thyme) * 1000 +
|
|
|
533 EMACS_USECS (thyme) / 1000;
|
|
|
534 if (milliseconds < 1)
|
|
|
535 milliseconds = 1;
|
|
|
536 timeout->timeout_id = gtk_timeout_add (milliseconds,
|
|
|
537 gtk_timeout_callback,
|
|
|
538 (gpointer) timeout);
|
|
|
539 return timeout->id;
|
|
|
540 }
|
|
|
541
|
|
|
542 static void
|
|
|
543 emacs_gtk_remove_timeout (int id)
|
|
|
544 {
|
|
|
545 struct GTK_timeout *timeout, *t2;
|
|
|
546
|
|
|
547 timeout = NULL;
|
|
|
548
|
|
|
549 /* Find the timeout on the list of pending ones, if it's still there. */
|
|
|
550 if (pending_timeouts)
|
|
|
551 {
|
|
|
552 if (id == pending_timeouts->id)
|
|
|
553 {
|
|
|
554 timeout = pending_timeouts;
|
|
|
555 pending_timeouts = pending_timeouts->next;
|
|
|
556 }
|
|
|
557 else
|
|
|
558 {
|
|
|
559 t2 = pending_timeouts;
|
|
|
560 while (t2->next && t2->next->id != id) t2 = t2->next;
|
|
|
561 if ( t2->next) /*found it */
|
|
|
562 {
|
|
|
563 timeout = t2->next;
|
|
|
564 t2->next = t2->next->next;
|
|
|
565 }
|
|
|
566 }
|
|
|
567 /* if it was pending, we have removed it from the list */
|
|
|
568 if (timeout)
|
|
|
569 gtk_timeout_remove (timeout->timeout_id);
|
|
|
570 }
|
|
|
571
|
|
|
572 /* It could be that the call back was already called but we didn't convert
|
|
|
573 into an Emacs event yet */
|
|
|
574 if (!timeout && completed_timeouts)
|
|
|
575 {
|
|
|
576 /* Code duplication! */
|
|
|
577 if (id == completed_timeouts->id)
|
|
|
578 {
|
|
|
579 timeout = completed_timeouts;
|
|
|
580 completed_timeouts = completed_timeouts->next;
|
|
|
581 }
|
|
|
582 else
|
|
|
583 {
|
|
|
584 t2 = completed_timeouts;
|
|
|
585 while (t2->next && t2->next->id != id) t2 = t2->next;
|
|
|
586 if ( t2->next) /*found it */
|
|
|
587 {
|
|
|
588 timeout = t2->next;
|
|
|
589 t2->next = t2->next->next;
|
|
|
590 }
|
|
|
591 }
|
|
|
592 }
|
|
|
593
|
|
|
594 /* If we found the thing on the lists of timeouts,
|
|
|
595 and removed it, deallocate
|
|
|
596 */
|
|
|
597 if (timeout)
|
|
|
598 Blocktype_free (the_GTK_timeout_blocktype, timeout);
|
|
|
599 }
|
|
|
600
|
|
|
601 static void
|
|
|
602 gtk_timeout_to_emacs_event (struct Lisp_Event *emacs_event)
|
|
|
603 {
|
|
|
604 struct GTK_timeout *timeout = completed_timeouts;
|
|
|
605 assert (timeout);
|
|
|
606 completed_timeouts = completed_timeouts->next;
|
|
|
607 emacs_event->event_type = timeout_event;
|
|
|
608 /* timeout events have nil as channel */
|
|
|
609 emacs_event->timestamp = 0; /* #### wrong!! */
|
|
|
610 emacs_event->event.timeout.interval_id = timeout->id;
|
|
|
611 Blocktype_free (the_GTK_timeout_blocktype, timeout);
|
|
|
612 }
|
|
|
613
|
|
|
614
|
|
|
615 /************************************************************************/
|
|
|
616 /* process and tty events */
|
|
|
617 /************************************************************************/
|
|
|
618
|
|
|
619 struct what_is_ready_closure
|
|
|
620 {
|
|
|
621 int fd;
|
|
|
622 Lisp_Object what;
|
|
|
623 gint id;
|
|
|
624 };
|
|
|
625
|
|
|
626 static Lisp_Object *filedesc_with_input;
|
|
|
627 static struct what_is_ready_closure **filedesc_to_what_closure;
|
|
|
628
|
|
|
629 static void
|
|
|
630 init_what_input_once (void)
|
|
|
631 {
|
|
|
632 int i;
|
|
|
633
|
|
|
634 filedesc_with_input = xnew_array (Lisp_Object, MAXDESC);
|
|
|
635 filedesc_to_what_closure =
|
|
|
636 xnew_array (struct what_is_ready_closure *, MAXDESC);
|
|
|
637
|
|
|
638 for (i = 0; i < MAXDESC; i++)
|
|
|
639 {
|
|
|
640 filedesc_to_what_closure[i] = 0;
|
|
|
641 filedesc_with_input[i] = Qnil;
|
|
|
642 }
|
|
|
643
|
|
|
644 process_events_occurred = 0;
|
|
|
645 tty_events_occurred = 0;
|
|
|
646 }
|
|
|
647
|
|
|
648 static void
|
|
|
649 mark_what_as_being_ready (struct what_is_ready_closure *closure)
|
|
|
650 {
|
|
|
651 if (NILP (filedesc_with_input[closure->fd]))
|
|
|
652 {
|
|
|
653 SELECT_TYPE temp_mask;
|
|
|
654 FD_ZERO (&temp_mask);
|
|
|
655 FD_SET (closure->fd, &temp_mask);
|
|
|
656 /* Check to make sure there's *really* input available.
|
|
|
657 Sometimes things seem to get confused and this gets called
|
|
|
658 for the tty fd when there's really only input available
|
|
|
659 on some process's fd. (It will subsequently get called
|
|
|
660 for that process's fd, so returning without setting any
|
|
|
661 flags will take care of it.) To see the problem, uncomment
|
|
|
662 the stderr_out below, turn NORMAL_QUIT_CHECK_TIMEOUT_MSECS
|
|
|
663 down to 25, do sh -c 'xemacs -nw -q -f shell 2>/tmp/log'
|
|
|
664 and press return repeatedly. (Seen under AIX & Linux.)
|
|
|
665 -dkindred@cs.cmu.edu */
|
|
|
666 if (!poll_fds_for_input (temp_mask))
|
|
|
667 {
|
|
|
668 #if 0
|
|
|
669 stderr_out ("mark_what_as_being_ready: no input available (fd=%d)\n",
|
|
|
670 closure->fd);
|
|
|
671 #endif
|
|
|
672 return;
|
|
|
673 }
|
|
|
674 filedesc_with_input[closure->fd] = closure->what;
|
|
|
675 if (PROCESSP (closure->what))
|
|
|
676 {
|
|
|
677 /* Don't increment this if the current process is already marked
|
|
|
678 * as having input. */
|
|
|
679 process_events_occurred++;
|
|
|
680 }
|
|
|
681 else
|
|
|
682 {
|
|
|
683 tty_events_occurred++;
|
|
|
684 }
|
|
|
685 }
|
|
|
686 }
|
|
|
687
|
|
|
688 static void
|
|
|
689 gtk_what_callback (gpointer closure, gint source, GdkInputCondition why)
|
|
|
690 {
|
|
|
691 /* If closure is 0, then we got a fake event from a signal handler.
|
|
|
692 The only purpose of this is to make XtAppProcessEvent() stop
|
|
|
693 blocking. */
|
|
|
694 if (closure)
|
|
|
695 mark_what_as_being_ready ((struct what_is_ready_closure *) closure);
|
|
|
696 else
|
|
|
697 {
|
|
|
698 fake_event_occurred++;
|
|
|
699 drain_signal_event_pipe ();
|
|
|
700 }
|
|
|
701 }
|
|
|
702
|
|
|
703 static void
|
|
|
704 select_filedesc (int fd, Lisp_Object what)
|
|
|
705 {
|
|
|
706 struct what_is_ready_closure *closure;
|
|
|
707
|
|
|
708 /* If somebody is trying to select something that's already selected
|
|
|
709 for, then something went wrong. The generic routines ought to
|
|
|
710 detect this and error before here. */
|
|
|
711 assert (!filedesc_to_what_closure[fd]);
|
|
|
712
|
|
|
713 closure = xnew (struct what_is_ready_closure);
|
|
|
714 closure->fd = fd;
|
|
|
715 closure->what = what;
|
|
|
716 closure->id = gdk_input_add (fd, GDK_INPUT_READ,
|
|
|
717 (GdkInputFunction) gtk_what_callback, closure);
|
|
|
718 filedesc_to_what_closure[fd] = closure;
|
|
|
719 }
|
|
|
720
|
|
|
721 static void
|
|
|
722 unselect_filedesc (int fd)
|
|
|
723 {
|
|
|
724 struct what_is_ready_closure *closure = filedesc_to_what_closure[fd];
|
|
|
725
|
|
|
726 assert (closure);
|
|
|
727 if (!NILP (filedesc_with_input[fd]))
|
|
|
728 {
|
|
|
729 /* We are unselecting this process before we have drained the rest of
|
|
|
730 the input from it, probably from status_notify() in the command loop.
|
|
|
731 This can happen like so:
|
|
|
732
|
|
|
733 - We are waiting in XtAppNextEvent()
|
|
|
734 - Process generates output
|
|
|
735 - Process is marked as being ready
|
|
|
736 - Process dies, SIGCHLD gets generated before we return (!?)
|
|
|
737 It could happen I guess.
|
|
|
738 - sigchld_handler() marks process as dead
|
|
|
739 - Somehow we end up getting a new KeyPress event on the queue
|
|
|
740 at the same time (I'm really so sure how that happens but I'm
|
|
|
741 not sure it can't either so let's assume it can...).
|
|
|
742 - Key events have priority so we return that instead of the proc.
|
|
|
743 - Before dispatching the lisp key event we call status_notify()
|
|
|
744 - Which deselects the process that SIGCHLD marked as dead.
|
|
|
745
|
|
|
746 Thus we never remove it from _with_input and turn it into a lisp
|
|
|
747 event, so we need to do it here. But this does not mean that we're
|
|
|
748 throwing away the last block of output - status_notify() has already
|
|
|
749 taken care of running the proc filter or whatever.
|
|
|
750 */
|
|
|
751 filedesc_with_input[fd] = Qnil;
|
|
|
752 if (PROCESSP (closure->what))
|
|
|
753 {
|
|
|
754 assert (process_events_occurred > 0);
|
|
|
755 process_events_occurred--;
|
|
|
756 }
|
|
|
757 else
|
|
|
758 {
|
|
|
759 assert (tty_events_occurred > 0);
|
|
|
760 tty_events_occurred--;
|
|
|
761 }
|
|
|
762 }
|
|
|
763 gdk_input_remove (closure->id);
|
|
|
764 xfree (closure);
|
|
|
765 filedesc_to_what_closure[fd] = 0;
|
|
|
766 }
|
|
|
767
|
|
|
768 static void
|
|
|
769 emacs_gtk_select_process (struct Lisp_Process *p)
|
|
|
770 {
|
|
|
771 Lisp_Object process;
|
|
|
772 int infd = event_stream_unixoid_select_process (p);
|
|
|
773
|
|
|
774 XSETPROCESS (process, p);
|
|
|
775 select_filedesc (infd, process);
|
|
|
776 }
|
|
|
777
|
|
|
778 static void
|
|
|
779 emacs_gtk_unselect_process (struct Lisp_Process *p)
|
|
|
780 {
|
|
|
781 int infd = event_stream_unixoid_unselect_process (p);
|
|
|
782
|
|
|
783 unselect_filedesc (infd);
|
|
|
784 }
|
|
|
785
|
|
|
786 static USID
|
|
|
787 emacs_gtk_create_stream_pair (void* inhandle, void* outhandle,
|
|
|
788 Lisp_Object* instream, Lisp_Object* outstream, int flags)
|
|
|
789 {
|
|
|
790 USID u = event_stream_unixoid_create_stream_pair
|
|
|
791 (inhandle, outhandle, instream, outstream, flags);
|
|
|
792 if (u != USID_ERROR)
|
|
|
793 u = USID_DONTHASH;
|
|
|
794 return u;
|
|
|
795 }
|
|
|
796
|
|
|
797 static USID
|
|
|
798 emacs_gtk_delete_stream_pair (Lisp_Object instream, Lisp_Object outstream)
|
|
|
799 {
|
|
|
800 event_stream_unixoid_delete_stream_pair (instream, outstream);
|
|
|
801 return USID_DONTHASH;
|
|
|
802 }
|
|
|
803
|
|
|
804 /* This is called from GC when a process object is about to be freed.
|
|
|
805 If we've still got pointers to it in this file, we're gonna lose hard.
|
|
|
806 */
|
|
|
807 void
|
|
|
808 debug_process_finalization (struct Lisp_Process *p)
|
|
|
809 {
|
|
|
810 #if 0 /* #### */
|
|
|
811 int i;
|
|
|
812 Lisp_Object instr, outstr;
|
|
|
813
|
|
|
814 get_process_streams (p, &instr, &outstr);
|
|
|
815 /* if it still has fds, then it hasn't been killed yet. */
|
|
|
816 assert (NILP(instr));
|
|
|
817 assert (NILP(outstr));
|
|
|
818 /* Better not still be in the "with input" table; we know it's got no fds. */
|
|
|
819 for (i = 0; i < MAXDESC; i++)
|
|
|
820 {
|
|
|
821 Lisp_Object process = filedesc_fds_with_input [i];
|
|
|
822 assert (!PROCESSP (process) || XPROCESS (process) != p);
|
|
|
823 }
|
|
|
824 #endif
|
|
|
825 }
|
|
|
826
|
|
|
827 static void
|
|
|
828 gtk_process_to_emacs_event (struct Lisp_Event *emacs_event)
|
|
|
829 {
|
|
|
830 int i;
|
|
|
831 Lisp_Object process;
|
|
|
832
|
|
|
833 assert (process_events_occurred > 0);
|
|
|
834 for (i = 0; i < MAXDESC; i++)
|
|
|
835 {
|
|
|
836 process = filedesc_with_input[i];
|
|
|
837 if (PROCESSP (process))
|
|
|
838 break;
|
|
|
839 }
|
|
|
840 assert (i < MAXDESC);
|
|
|
841 filedesc_with_input[i] = Qnil;
|
|
|
842 process_events_occurred--;
|
|
|
843 /* process events have nil as channel */
|
|
|
844 emacs_event->event_type = process_event;
|
|
|
845 emacs_event->timestamp = 0; /* #### */
|
|
|
846 emacs_event->event.process.process = process;
|
|
|
847 }
|
|
|
848
|
|
|
849 static void
|
|
|
850 emacs_gtk_select_console (struct console *con)
|
|
|
851 {
|
|
|
852 Lisp_Object console;
|
|
|
853 int infd;
|
|
|
854
|
|
|
855 if (CONSOLE_GTK_P (con))
|
|
|
856 return; /* Gtk consoles are automatically selected for when we initialize them */
|
|
|
857 infd = event_stream_unixoid_select_console (con);
|
|
|
858 XSETCONSOLE (console, con);
|
|
|
859 select_filedesc (infd, console);
|
|
|
860 }
|
|
|
861
|
|
|
862 static void
|
|
|
863 emacs_gtk_unselect_console (struct console *con)
|
|
|
864 {
|
|
|
865 Lisp_Object console;
|
|
|
866 int infd;
|
|
|
867
|
|
|
868 if (CONSOLE_GTK_P (con))
|
|
|
869 return; /* X consoles are automatically selected for when we initialize them */
|
|
|
870 infd = event_stream_unixoid_unselect_console (con);
|
|
|
871 XSETCONSOLE (console, con);
|
|
|
872 unselect_filedesc (infd);
|
|
|
873 }
|
|
|
874
|
|
|
875 /* read an event from a tty, if one is available. Returns non-zero
|
|
|
876 if an event was available. Note that when this function is
|
|
|
877 called, there should always be a tty marked as ready for input.
|
|
|
878 However, the input condition might actually be EOF, so there
|
|
|
879 may not really be any input available. (In this case,
|
|
|
880 read_event_from_tty_or_stream_desc() will arrange for the TTY device
|
|
|
881 to be deleted.) */
|
|
|
882
|
|
|
883 static int
|
|
|
884 gtk_tty_to_emacs_event (struct Lisp_Event *emacs_event)
|
|
|
885 {
|
|
|
886 int i;
|
|
|
887
|
|
|
888 assert (tty_events_occurred > 0);
|
|
|
889 for (i = 0; i < MAXDESC; i++)
|
|
|
890 {
|
|
|
891 Lisp_Object console = filedesc_with_input[i];
|
|
|
892 if (CONSOLEP (console))
|
|
|
893 {
|
|
|
894 assert (tty_events_occurred > 0);
|
|
|
895 tty_events_occurred--;
|
|
|
896 filedesc_with_input[i] = Qnil;
|
|
|
897 if (read_event_from_tty_or_stream_desc
|
|
|
898 (emacs_event, XCONSOLE (console), i))
|
|
|
899 return 1;
|
|
|
900 }
|
|
|
901 }
|
|
|
902
|
|
|
903 return 0;
|
|
|
904 }
|
|
|
905
|
|
|
906
|
|
|
907 /************************************************************************/
|
|
|
908 /* Drag 'n Drop handling */
|
|
|
909 /************************************************************************/
|
|
|
910 #ifdef HAVE_DRAGNDROP
|
|
|
911 #define TARGET_URI_LIST 0x00
|
|
|
912 #define TARGET_TEXT_PLAIN 0x01
|
|
|
913 #define TARGET_FILE_NAME 0x02
|
|
|
914 #define TARGET_NETSCAPE 0x03
|
|
|
915
|
|
|
916 static GdkAtom preferred_targets[10];
|
|
|
917
|
|
|
918 void
|
|
|
919 dragndrop_data_received (GtkWidget *widget,
|
|
|
920 GdkDragContext *context,
|
|
|
921 gint x,
|
|
|
922 gint y,
|
|
|
923 GtkSelectionData *data,
|
|
|
924 guint info,
|
|
|
925 guint time)
|
|
|
926 {
|
|
|
927 Lisp_Object event = Fmake_event (Qnil, Qnil);
|
|
|
928 struct device *d = gtk_any_window_to_device (widget->window);
|
|
|
929 struct frame *f = gtk_any_widget_or_parent_to_frame (d, widget);
|
|
|
930 struct Lisp_Event *ev = XEVENT (event);
|
|
|
931 Lisp_Object l_type = Qnil, l_data = Qnil;
|
|
|
932 Lisp_Object l_dndlist = Qnil, l_item = Qnil;
|
|
|
933 struct gcpro gcpro1, gcpro2, gcpro3, gcpro4;
|
|
|
934
|
|
|
935 GCPRO4 (l_type, l_data, l_dndlist, l_item);
|
|
|
936
|
|
|
937 ev->event_type = misc_user_event;
|
|
|
938 ev->timestamp = time;
|
|
|
939
|
|
|
940 XSETFRAME (ev->channel, f);
|
|
|
941
|
|
|
942 ev->event.misc.x = x;
|
|
|
943 ev->event.misc.y = y;
|
|
|
944
|
|
|
945 if (data->type == preferred_targets[TARGET_URI_LIST])
|
|
|
946 {
|
|
|
947 /* newline-separated list of URLs */
|
|
|
948 int start, end;
|
|
|
949 const char *string_data = (char *) data->data;
|
|
|
950
|
|
|
951 l_type = Qdragdrop_URL;
|
|
|
952
|
|
|
953 for (start = 0, end = 0; string_data && string_data[end]; end++)
|
|
|
954 {
|
|
|
955 if ((string_data[end] == '\r') && (string_data[end+1] == '\n'))
|
|
|
956 {
|
|
|
957 l_item = make_string (&string_data[start], end - start);
|
|
|
958 l_dndlist = Fcons (l_item, l_dndlist);
|
|
|
959 ++end;
|
|
|
960 start = ++end;
|
|
|
961 }
|
|
|
962 }
|
|
|
963 }
|
|
|
964 else if (data->type == preferred_targets[TARGET_TEXT_PLAIN])
|
|
|
965 {
|
|
|
966 /* Arbitrary string */
|
|
|
967 l_type = Qdragdrop_MIME;
|
|
|
968 l_dndlist = list1 (list3 (list1 (build_string ("text/plain")),
|
|
|
969 build_string ("8_bit"),
|
|
|
970 make_ext_string (data->data,
|
|
|
971 strlen ((char *)data->data),
|
|
|
972 Qctext)));
|
|
|
973 }
|
|
|
974 else if (data->type == preferred_targets[TARGET_FILE_NAME])
|
|
|
975 {
|
|
|
976 /* Random filename */
|
|
|
977 char *hurl = dnd_url_hexify_string (data->data, "file:");
|
|
|
978
|
|
|
979 l_dndlist = list1 (make_string ((Bufbyte *)hurl, strlen (hurl)));
|
|
|
980 l_type = Qdragdrop_URL;
|
|
|
981
|
|
|
982 xfree (hurl);
|
|
|
983 }
|
|
|
984 else if (data->type == preferred_targets[TARGET_NETSCAPE])
|
|
|
985 {
|
|
|
986 /* Single URL */
|
|
|
987 l_dndlist = list1 (make_string ((Extbyte *)data->data,
|
|
|
988 strlen ((char *)data->data)));
|
|
|
989 l_type = Qdragdrop_URL;
|
|
|
990 }
|
|
|
991 else
|
|
|
992 {
|
|
|
993 /* Unknown type - what to do?
|
|
|
994 We just pass it up to lisp - we already have a mime type.
|
|
|
995 */
|
|
|
996 l_type = Qdragdrop_MIME;
|
|
|
997 l_dndlist = list1 (list3 (list1 (build_string (gdk_atom_name (data->type))),
|
|
|
998 build_string ("8bit"),
|
|
|
999 make_ext_string ((Extbyte *) data->data,
|
|
|
1000 data->length, Qbinary)));
|
|
|
1001 }
|
|
|
1002
|
|
|
1003 ev->event.misc.function = Qdragdrop_drop_dispatch;
|
|
|
1004 ev->event.misc.object = Fcons (l_type, l_dndlist);
|
|
|
1005
|
|
|
1006 UNGCPRO;
|
|
|
1007
|
|
|
1008 gtk_drag_finish (context, TRUE, FALSE, time);
|
|
|
1009 enqueue_gtk_dispatch_event (event);
|
|
|
1010 }
|
|
|
1011
|
|
|
1012 gboolean
|
|
|
1013 dragndrop_dropped (GtkWidget *widget,
|
|
|
1014 GdkDragContext *drag_context,
|
|
|
1015 gint x,
|
|
|
1016 gint y,
|
|
|
1017 guint time,
|
|
|
1018 gpointer user_data)
|
|
|
1019 {
|
|
|
1020 /* Netscape drops things like:
|
|
|
1021 STRING
|
|
|
1022 _SGI_ICON
|
|
|
1023 _SGI_ICON_TYPE
|
|
|
1024 SGI_FILE
|
|
|
1025 FILE_NAME
|
|
|
1026 _NETSCAPE_URL
|
|
|
1027
|
|
|
1028 gmc drops things like
|
|
|
1029 application/x-mc-desktop-icon
|
|
|
1030 text/uri-list
|
|
|
1031 text/plain
|
|
|
1032 _NETSCAPE_URL
|
|
|
1033
|
|
|
1034 We prefer:
|
|
|
1035 text/uri-list
|
|
|
1036 text/plain
|
|
|
1037 FILE_NAME
|
|
|
1038 _NETSCAPE_URL
|
|
|
1039 first one
|
|
|
1040 */
|
|
|
1041 GdkAtom found = 0;
|
|
|
1042 GList *list = drag_context->targets;
|
|
|
1043
|
|
|
1044 int i;
|
|
|
1045
|
|
|
1046 if (!preferred_targets[0])
|
|
|
1047 {
|
|
|
1048 preferred_targets[TARGET_URI_LIST] = gdk_atom_intern ("text/uri-list", FALSE);
|
|
|
1049 preferred_targets[TARGET_TEXT_PLAIN] = gdk_atom_intern ("text/plain", FALSE);
|
|
|
1050 preferred_targets[TARGET_FILE_NAME] = gdk_atom_intern ("FILE_NAME", FALSE);
|
|
|
1051 preferred_targets[TARGET_NETSCAPE] = gdk_atom_intern ("_NETSCAPE_URL", FALSE);
|
|
|
1052 }
|
|
|
1053
|
|
|
1054 #if 0
|
|
|
1055 stderr_out ("Drop info available in the following formats: \n");
|
|
|
1056 while (list)
|
|
|
1057 {
|
|
|
1058 stderr_out ("\t%s\n", gdk_atom_name ((GdkAtom)list->data));
|
|
|
1059 list = list->next;
|
|
|
1060 }
|
|
|
1061 list = drag_context->targets;
|
|
|
1062 #endif
|
|
|
1063
|
|
|
1064 while (list && !found)
|
|
|
1065 {
|
|
|
1066 for (i = 0; preferred_targets[i] && !found; i++)
|
|
|
1067 {
|
|
|
1068 if ((GdkAtom) list->data == preferred_targets[i])
|
|
|
1069 {
|
|
|
1070 found = (GdkAtom) list->data;
|
|
|
1071 }
|
|
|
1072 }
|
|
|
1073 list = list->next;
|
|
|
1074 }
|
|
|
1075
|
|
|
1076 if (!found)
|
|
|
1077 {
|
|
|
1078 found = (GdkAtom) drag_context->targets->data;
|
|
|
1079 }
|
|
|
1080
|
|
|
1081 gtk_drag_get_data (GTK_WIDGET (user_data), drag_context, found, time);
|
|
|
1082 return (TRUE);
|
|
|
1083 }
|
|
|
1084 #endif /* HAVE_DRAGNDROP */
|
|
|
1085
|
|
|
1086
|
|
|
1087 /************************************************************************/
|
|
|
1088 /* get the next event from gtk */
|
|
|
1089 /************************************************************************/
|
|
|
1090
|
|
|
1091 static Lisp_Object dispatch_event_queue, dispatch_event_queue_tail;
|
|
|
1092
|
|
|
1093 static void
|
|
|
1094 enqueue_gtk_dispatch_event (Lisp_Object event)
|
|
|
1095 {
|
|
|
1096 enqueue_event (event, &dispatch_event_queue, &dispatch_event_queue_tail);
|
|
|
1097 }
|
|
|
1098
|
|
|
1099 static Lisp_Object
|
|
|
1100 dequeue_gtk_dispatch_event (void)
|
|
|
1101 {
|
|
|
1102 return dequeue_event (&dispatch_event_queue, &dispatch_event_queue_tail);
|
|
|
1103 }
|
|
|
1104
|
|
|
1105 /* This business exists because menu events "happen" when
|
|
|
1106 menubar_selection_callback() is called from somewhere deep
|
|
|
1107 within XtAppProcessEvent in emacs_Xt_next_event(). The
|
|
|
1108 callback needs to terminate the modal loop in that function
|
|
|
1109 or else it will continue waiting until another event is
|
|
|
1110 received.
|
|
|
1111
|
|
|
1112 Same business applies to scrollbar events. */
|
|
|
1113
|
|
|
1114 void
|
|
|
1115 signal_special_gtk_user_event (Lisp_Object channel, Lisp_Object function,
|
|
|
1116 Lisp_Object object)
|
|
|
1117 {
|
|
|
1118 Lisp_Object event = Fmake_event (Qnil, Qnil);
|
|
|
1119
|
|
|
1120 XEVENT (event)->event_type = misc_user_event;
|
|
|
1121 XEVENT (event)->channel = channel;
|
|
|
1122 XEVENT (event)->event.eval.function = function;
|
|
|
1123 XEVENT (event)->event.eval.object = object;
|
|
|
1124
|
|
|
1125 enqueue_gtk_dispatch_event (event);
|
|
|
1126 }
|
|
|
1127
|
|
|
1128 static void
|
|
|
1129 emacs_gtk_next_event (struct Lisp_Event *emacs_event)
|
|
|
1130 {
|
|
|
1131 we_didnt_get_an_event:
|
|
|
1132
|
|
|
1133 while (NILP (dispatch_event_queue) &&
|
|
|
1134 !completed_timeouts &&
|
|
|
1135 !fake_event_occurred &&
|
|
|
1136 !process_events_occurred &&
|
|
|
1137 !tty_events_occurred)
|
|
|
1138 {
|
|
|
1139 gtk_main_iteration();
|
|
|
1140 }
|
|
|
1141
|
|
|
1142 if (!NILP (dispatch_event_queue))
|
|
|
1143 {
|
|
|
1144 Lisp_Object event, event2;
|
|
|
1145 XSETEVENT (event2, emacs_event);
|
|
|
1146 event = dequeue_gtk_dispatch_event ();
|
|
|
1147 Fcopy_event (event, event2);
|
|
|
1148 Fdeallocate_event (event);
|
|
|
1149 }
|
|
|
1150 else if (tty_events_occurred)
|
|
|
1151 {
|
|
|
1152 if (!gtk_tty_to_emacs_event (emacs_event))
|
|
|
1153 goto we_didnt_get_an_event;
|
|
|
1154 }
|
|
|
1155 else if (completed_timeouts)
|
|
|
1156 gtk_timeout_to_emacs_event (emacs_event);
|
|
|
1157 else if (fake_event_occurred)
|
|
|
1158 {
|
|
|
1159 /* A dummy event, so that a cycle of the command loop will occur. */
|
|
|
1160 fake_event_occurred = 0;
|
|
|
1161 /* eval events have nil as channel */
|
|
|
1162 emacs_event->event_type = eval_event;
|
|
|
1163 emacs_event->event.eval.function = Qidentity;
|
|
|
1164 emacs_event->event.eval.object = Qnil;
|
|
|
1165 }
|
|
|
1166 else /* if (process_events_occurred) */
|
|
|
1167 gtk_process_to_emacs_event (emacs_event);
|
|
|
1168 }
|
|
|
1169
|
|
|
1170 int
|
|
|
1171 gtk_event_to_emacs_event (struct frame *frame, GdkEvent *gdk_event, struct Lisp_Event *emacs_event)
|
|
|
1172 {
|
|
|
1173 struct device *d = NULL;
|
|
|
1174 struct gtk_device *gd = NULL;
|
|
|
1175 gboolean accept_any_window = FALSE;
|
|
|
1176
|
|
|
1177 if (!frame)
|
|
|
1178 {
|
|
|
1179 frame = XFRAME (Fselected_frame (Vdefault_gtk_device));
|
|
|
1180 accept_any_window = TRUE;
|
|
|
1181 }
|
|
|
1182
|
|
|
1183 d = XDEVICE (FRAME_DEVICE (frame));
|
|
|
1184 gd = DEVICE_GTK_DATA (d);
|
|
|
1185
|
|
|
1186 set_last_server_timestamp (d, gdk_event);
|
|
|
1187
|
|
|
1188 switch (gdk_event->type)
|
|
|
1189 {
|
|
|
1190 /* XEmacs handles double and triple clicking on its own, and if
|
|
|
1191 we capture these events, it royally confuses the code in
|
|
|
1192 ../lisp/mouse.el */
|
|
|
1193 case GDK_2BUTTON_PRESS:
|
|
|
1194 case GDK_3BUTTON_PRESS:
|
|
|
1195 return (0);
|
|
|
1196
|
|
|
1197 case GDK_BUTTON_PRESS:
|
|
|
1198 case GDK_BUTTON_RELEASE:
|
|
|
1199 /* We need to ignore button events outside our main window or
|
|
|
1200 things get ugly. The standard scrollbars in Gtk try to be
|
|
|
1201 nice and pass the button press events up to the parent
|
|
|
1202 widget. This causes us no end of grief though. Effects
|
|
|
1203 range from setting point to the wrong place to selecting
|
|
|
1204 new windows. */
|
|
|
1205 {
|
|
|
1206 GdkWindow *w = gdk_window_at_pointer (NULL, NULL);
|
|
|
1207
|
|
|
1208 /* If you press mouse button and drag it around, and release
|
|
|
1209 it outside the window, you will get a NULL GdkWindow at
|
|
|
1210 pointer. We need to forward these events on to XEmacs so
|
|
|
1211 that the mouse selection voodoo works.
|
|
|
1212 */
|
|
|
1213 if (w && (w != gdk_window_lookup (GDK_ROOT_WINDOW ())))
|
|
|
1214 {
|
|
|
1215 GdkEvent ev;
|
|
|
1216 GtkWidget *wid = NULL;
|
|
|
1217
|
|
|
1218 ev.any.window = w;
|
|
|
1219 wid = gtk_get_event_widget (&ev);
|
|
|
1220
|
|
|
1221 if (!GTK_IS_XEMACS (wid) && !accept_any_window)
|
|
|
1222 {
|
|
|
1223 return (0);
|
|
|
1224 }
|
|
|
1225 }
|
|
|
1226 if (!accept_any_window)
|
|
|
1227 gtk_widget_grab_focus (FRAME_GTK_TEXT_WIDGET (frame));
|
|
|
1228 }
|
|
|
1229 /* Fall through */
|
|
|
1230 case GDK_KEY_PRESS:
|
|
|
1231 {
|
|
|
1232 unsigned int modifiers = 0;
|
|
|
1233 int shift_p, lock_p;
|
|
|
1234 gboolean key_event_p = (gdk_event->type == GDK_KEY_PRESS);
|
|
|
1235 unsigned int *state =
|
|
|
1236 key_event_p ? &gdk_event->key.state : &gdk_event->button.state;
|
|
|
1237
|
|
|
1238 /* If this is a synthetic KeyPress or Button event, and the user
|
|
|
1239 has expressed a disinterest in this security hole, then drop
|
|
|
1240 it on the floor. */
|
|
|
1241 /* #### BILL!!! Should this be a generic check for ANY synthetic
|
|
|
1242 event? */
|
|
|
1243 if ((gdk_event->any.send_event) && !gtk_allow_sendevents)
|
|
|
1244 return 0;
|
|
|
1245
|
|
|
1246 DEVICE_GTK_MOUSE_TIMESTAMP (d) =
|
|
|
1247 DEVICE_GTK_GLOBAL_MOUSE_TIMESTAMP (d) =
|
|
|
1248 key_event_p ? gdk_event->key.time : gdk_event->button.time;
|
|
|
1249
|
|
|
1250 if (*state & GDK_CONTROL_MASK) modifiers |= XEMACS_MOD_CONTROL;
|
|
|
1251 if (*state & gd->MetaMask) modifiers |= XEMACS_MOD_META;
|
|
|
1252 if (*state & gd->SuperMask) modifiers |= XEMACS_MOD_SUPER;
|
|
|
1253 if (*state & gd->HyperMask) modifiers |= XEMACS_MOD_HYPER;
|
|
|
1254 if (*state & gd->AltMask) modifiers |= XEMACS_MOD_ALT;
|
|
|
1255
|
|
|
1256 /* Ignore the Caps_Lock key if:
|
|
|
1257 - any other modifiers are down, so that Caps_Lock doesn't
|
|
|
1258 turn C-x into C-X, which would suck.
|
|
|
1259 - the event was a mouse event. */
|
|
|
1260 if (modifiers || ! key_event_p)
|
|
|
1261 *state &= (~GDK_LOCK_MASK);
|
|
|
1262
|
|
|
1263 shift_p = *state & GDK_SHIFT_MASK;
|
|
|
1264 lock_p = *state & GDK_LOCK_MASK;
|
|
|
1265
|
|
|
1266 if (shift_p || lock_p)
|
|
|
1267 modifiers |= XEMACS_MOD_SHIFT;
|
|
|
1268
|
|
|
1269 if (key_event_p)
|
|
|
1270 {
|
|
|
1271 GdkEventKey *key_event = &gdk_event->key;
|
|
|
1272 Lisp_Object keysym;
|
|
|
1273
|
|
|
1274 /* This used to compute the frame from the given X window and
|
|
|
1275 store it here, but we really don't care about the frame. */
|
|
|
1276 emacs_event->channel = DEVICE_CONSOLE (d);
|
|
|
1277
|
|
|
1278 /* Keysym mucking has already been done inside the
|
|
|
1279 GdkEventKey parsing */
|
|
|
1280 keysym = gtk_to_emacs_keysym (d, key_event, 0);
|
|
|
1281
|
|
|
1282 /* If the emacs keysym is nil, then that means that the X
|
|
|
1283 keysym was either a Modifier or NoSymbol, which
|
|
|
1284 probably means that we're in the midst of reading a
|
|
|
1285 Multi_key sequence, or a "dead" key prefix, or XIM
|
|
|
1286 input. Ignore it. */
|
|
|
1287 if (NILP (keysym))
|
|
|
1288 return 0;
|
|
|
1289
|
|
|
1290 /* More Caps_Lock garbage: Caps_Lock should *only* add the
|
|
|
1291 shift modifier to two-case keys (that is, A-Z and
|
|
|
1292 related characters). So at this point (after looking up
|
|
|
1293 the keysym) if the keysym isn't a dual-case alphabetic,
|
|
|
1294 and if the caps lock key was down but the shift key
|
|
|
1295 wasn't, then turn off the shift modifier. Gag barf */
|
|
|
1296 /* #### type lossage: assuming equivalence of emacs and
|
|
|
1297 X keysyms */
|
|
|
1298 /* !!#### maybe fix for Mule */
|
|
|
1299 if (lock_p && !shift_p &&
|
|
|
1300 ! (CHAR_OR_CHAR_INTP (keysym)
|
|
|
1301 && keysym_obeys_caps_lock_p
|
|
|
1302 ((guint) XCHAR_OR_CHAR_INT (keysym), d)))
|
|
|
1303 modifiers &= (~XEMACS_MOD_SHIFT);
|
|
|
1304
|
|
|
1305 /* If this key contains two distinct keysyms, that is,
|
|
|
1306 "shift" generates a different keysym than the
|
|
|
1307 non-shifted key, then don't apply the shift modifier
|
|
|
1308 bit: it's implicit. Otherwise, if there would be no
|
|
|
1309 other way to tell the difference between the shifted
|
|
|
1310 and unshifted version of this key, apply the shift bit.
|
|
|
1311 Non-graphics, like Backspace and F1 get the shift bit
|
|
|
1312 in the modifiers slot. Neither the characters "a",
|
|
|
1313 "A", "2", nor "@" normally have the shift bit set.
|
|
|
1314 However, "F1" normally does. */
|
|
|
1315 if (modifiers & XEMACS_MOD_SHIFT)
|
|
|
1316 {
|
|
|
1317 if (CHAR_OR_CHAR_INTP (keysym))
|
|
|
1318 {
|
|
|
1319 modifiers &= ~XEMACS_MOD_SHIFT;
|
|
|
1320 }
|
|
|
1321 }
|
|
|
1322
|
|
|
1323 emacs_event->event_type = key_press_event;
|
|
|
1324 emacs_event->timestamp = key_event->time;
|
|
|
1325 emacs_event->event.key.modifiers = modifiers;
|
|
|
1326 emacs_event->event.key.keysym = keysym;
|
|
|
1327 }
|
|
|
1328 else /* Mouse press/release event */
|
|
|
1329 {
|
|
|
1330 GdkEventButton *button_event = &gdk_event->button;
|
|
|
1331 XSETFRAME (emacs_event->channel, frame);
|
|
|
1332
|
|
|
1333 emacs_event->event_type = (button_event->type == GDK_BUTTON_RELEASE) ?
|
|
|
1334 button_release_event : button_press_event;
|
|
|
1335
|
|
|
1336 emacs_event->event.button.modifiers = modifiers;
|
|
|
1337 emacs_event->timestamp = button_event->time;
|
|
|
1338 emacs_event->event.button.button = button_event->button;
|
|
|
1339 emacs_event->event.button.x = button_event->x;
|
|
|
1340 emacs_event->event.button.y = button_event->y;
|
|
|
1341 }
|
|
|
1342 }
|
|
|
1343 break;
|
|
|
1344 case GDK_KEY_RELEASE:
|
|
|
1345 return 0;
|
|
|
1346 break;
|
|
|
1347 case GDK_MOTION_NOTIFY:
|
|
|
1348 {
|
|
|
1349 GdkEventMotion *ev = &gdk_event->motion;
|
|
|
1350 unsigned int modifiers = 0;
|
|
|
1351 gint x,y;
|
|
|
1352 GdkModifierType mask;
|
|
|
1353
|
|
|
1354 /* We use MOTION_HINT_MASK, so we will get only one motion
|
|
|
1355 event until the next time we call gdk_window_get_pointer or
|
|
|
1356 the user clicks the mouse. So call gdk_window_get_pointer
|
|
|
1357 now (meaning that the event will be in sync with the server
|
|
|
1358 just before Fnext_event() returns). If the mouse is still
|
|
|
1359 in motion, then the server will immediately generate
|
|
|
1360 exactly one more motion event, which will be on the queue
|
|
|
1361 waiting for us next time around. */
|
|
|
1362 gdk_window_get_pointer (ev->window, &x, &y, &mask);
|
|
|
1363
|
|
|
1364 DEVICE_GTK_MOUSE_TIMESTAMP (d) = ev->time;
|
|
|
1365
|
|
|
1366 XSETFRAME (emacs_event->channel, frame);
|
|
|
1367 emacs_event->event_type = pointer_motion_event;
|
|
|
1368 emacs_event->timestamp = ev->time;
|
|
|
1369 emacs_event->event.motion.x = x;
|
|
|
1370 emacs_event->event.motion.y = y;
|
|
|
1371 if (mask & GDK_SHIFT_MASK) modifiers |= XEMACS_MOD_SHIFT;
|
|
|
1372 if (mask & GDK_CONTROL_MASK) modifiers |= XEMACS_MOD_CONTROL;
|
|
|
1373 if (mask & gd->MetaMask) modifiers |= XEMACS_MOD_META;
|
|
|
1374 if (mask & gd->SuperMask) modifiers |= XEMACS_MOD_SUPER;
|
|
|
1375 if (mask & gd->HyperMask) modifiers |= XEMACS_MOD_HYPER;
|
|
|
1376 if (mask & gd->AltMask) modifiers |= XEMACS_MOD_ALT;
|
|
|
1377 /* Currently ignores Shift_Lock but probably shouldn't
|
|
|
1378 (but it definitely should ignore Caps_Lock). */
|
|
|
1379 emacs_event->event.motion.modifiers = modifiers;
|
|
|
1380 }
|
|
|
1381 break;
|
|
|
1382
|
|
|
1383 default: /* it's a magic event */
|
|
|
1384 return (0);
|
|
|
1385 break;
|
|
|
1386 }
|
|
|
1387 return 1;
|
|
|
1388 }
|
|
|
1389
|
|
|
1390 static const char *event_name (GdkEvent *);
|
|
|
1391
|
|
|
1392 static gboolean
|
|
|
1393 generic_event_handler (GtkWidget *widget, GdkEvent *event)
|
|
|
1394 {
|
|
|
1395 Lisp_Object emacs_event = Qnil;
|
|
|
1396 if (!GTK_IS_XEMACS (widget))
|
|
|
1397 {
|
|
|
1398 stderr_out ("Got a %s event for a non-XEmacs widget\n",event_name (event));
|
|
|
1399 return (FALSE);
|
|
|
1400 }
|
|
|
1401
|
|
|
1402 emacs_event = Fmake_event (Qnil, Qnil);
|
|
|
1403
|
|
|
1404 if (gtk_event_to_emacs_event (GTK_XEMACS_FRAME (widget), event, XEVENT (emacs_event)))
|
|
|
1405 {
|
|
|
1406 enqueue_gtk_dispatch_event (emacs_event);
|
|
|
1407 return (TRUE);
|
|
|
1408 }
|
|
|
1409 else
|
|
|
1410 {
|
|
|
1411 Fdeallocate_event (emacs_event);
|
|
|
1412 }
|
|
|
1413 return (FALSE);
|
|
|
1414 }
|
|
|
1415
|
|
|
1416 gint emacs_gtk_key_event_handler(GtkWidget *widget, GdkEventKey *event)
|
|
|
1417 {
|
|
|
1418 return (generic_event_handler (widget, (GdkEvent *) event));
|
|
|
1419 }
|
|
|
1420
|
|
|
1421 gint emacs_gtk_button_event_handler(GtkWidget *widget, GdkEventButton *event)
|
|
|
1422 {
|
|
|
1423 return (generic_event_handler (widget, (GdkEvent *) event));
|
|
|
1424 }
|
|
|
1425
|
|
|
1426 gint emacs_gtk_motion_event_handler (GtkWidget *widget, GdkEventMotion *event)
|
|
|
1427 {
|
|
|
1428 return (generic_event_handler (widget, (GdkEvent *) event));
|
|
|
1429 }
|
|
|
1430
|
|
|
1431 gboolean
|
|
|
1432 emacs_shell_event_handler (GtkWidget *wid /* unused */,
|
|
|
1433 GdkEvent *event,
|
|
|
1434 gpointer closure)
|
|
|
1435 {
|
|
|
1436 struct frame *frame = (struct frame *) closure;
|
|
|
1437 Lisp_Object lisp_event = Fmake_event (Qnil, Qnil);
|
|
|
1438 struct Lisp_Event *emacs_event = XEVENT (lisp_event);
|
|
|
1439 GdkEvent *gdk_event_copy = &emacs_event->event.magic.underlying_gdk_event;
|
|
|
1440 struct device *d = XDEVICE (FRAME_DEVICE (frame));
|
|
|
1441 gboolean ignore_p = FALSE;
|
|
|
1442
|
|
|
1443 set_last_server_timestamp (d, event);
|
|
|
1444
|
|
|
1445 #define FROB(event_member) gdk_event_copy->event_member = event->event_member
|
|
|
1446
|
|
|
1447 switch (event->type)
|
|
|
1448 {
|
|
|
1449 case GDK_SELECTION_REQUEST:
|
|
|
1450 case GDK_SELECTION_CLEAR:
|
|
|
1451 case GDK_SELECTION_NOTIFY: FROB(selection); break;
|
|
|
1452 case GDK_PROPERTY_NOTIFY: FROB(property); break;
|
|
|
1453 case GDK_CLIENT_EVENT: FROB(client); break;
|
|
|
1454 case GDK_MAP:
|
|
|
1455 case GDK_UNMAP: FROB(any); break;
|
|
|
1456 case GDK_CONFIGURE: FROB(configure); break;
|
|
|
1457 case GDK_ENTER_NOTIFY:
|
|
|
1458 case GDK_LEAVE_NOTIFY: FROB(crossing); break;
|
|
|
1459 case GDK_FOCUS_CHANGE: FROB(focus_change); break;
|
|
|
1460 case GDK_VISIBILITY_NOTIFY: FROB(visibility); break;
|
|
|
1461 default:
|
|
|
1462 ignore_p = TRUE;
|
|
|
1463 /* Hrmm... do we really want to swallow all the other events as magic? */
|
|
|
1464 *gdk_event_copy = *event;
|
|
|
1465 break;
|
|
|
1466 }
|
|
|
1467 #undef FROB
|
|
|
1468
|
|
|
1469 emacs_event->event_type = magic_event;
|
|
|
1470 XSETFRAME (emacs_event->channel, frame);
|
|
|
1471
|
|
|
1472 if (ignore_p)
|
|
|
1473 {
|
|
|
1474 stderr_out ("Ignoring event... (%s)\n", event_name (event));
|
|
|
1475 Fdeallocate_event (lisp_event);
|
|
|
1476 return (FALSE);
|
|
|
1477 }
|
|
|
1478 else
|
|
|
1479 {
|
|
|
1480 enqueue_gtk_dispatch_event (lisp_event);
|
|
|
1481 return (TRUE);
|
|
|
1482 }
|
|
|
1483 }
|
|
|
1484
|
|
|
1485
|
|
|
1486 /************************************************************************/
|
|
|
1487 /* input pending / C-g checking */
|
|
|
1488 /************************************************************************/
|
|
|
1489 static void
|
|
|
1490 gtk_check_for_quit_char (struct device *d);
|
|
|
1491
|
|
|
1492 static void
|
|
|
1493 check_for_tty_quit_char (struct device *d)
|
|
|
1494 {
|
|
|
1495 SELECT_TYPE temp_mask;
|
|
|
1496 int infd = DEVICE_INFD (d);
|
|
|
1497 struct console *con = XCONSOLE (DEVICE_CONSOLE (d));
|
|
|
1498 Emchar quit_char = CONSOLE_QUIT_CHAR (con);
|
|
|
1499
|
|
|
1500 FD_ZERO (&temp_mask);
|
|
|
1501 FD_SET (infd, &temp_mask);
|
|
|
1502
|
|
|
1503 while (1)
|
|
|
1504 {
|
|
|
1505 Lisp_Object event;
|
|
|
1506 Emchar the_char;
|
|
|
1507
|
|
|
1508 if (!poll_fds_for_input (temp_mask))
|
|
|
1509 return;
|
|
|
1510
|
|
|
1511 event = Fmake_event (Qnil, Qnil);
|
|
|
1512 if (!read_event_from_tty_or_stream_desc (XEVENT (event), con, infd))
|
|
|
1513 /* EOF, or something ... */
|
|
|
1514 return;
|
|
|
1515 /* #### bogus. quit-char should be allowed to be any sort
|
|
|
1516 of event. */
|
|
|
1517 the_char = event_to_character (XEVENT (event), 1, 0, 0);
|
|
|
1518 if (the_char >= 0 && the_char == quit_char)
|
|
|
1519 {
|
|
|
1520 Vquit_flag = Qt;
|
|
|
1521 /* do not queue the C-g. See above. */
|
|
|
1522 return;
|
|
|
1523 }
|
|
|
1524
|
|
|
1525 /* queue the read event to be read for real later. */
|
|
|
1526 enqueue_gtk_dispatch_event (event);
|
|
|
1527 }
|
|
|
1528 }
|
|
|
1529
|
|
|
1530 static void
|
|
|
1531 emacs_gtk_quit_p (void)
|
|
|
1532 {
|
|
|
1533 Lisp_Object devcons, concons;
|
|
|
1534
|
|
|
1535 CONSOLE_LOOP (concons)
|
|
|
1536 {
|
|
|
1537 struct console *con = XCONSOLE (XCAR (concons));
|
|
|
1538 if (!con->input_enabled)
|
|
|
1539 continue;
|
|
|
1540
|
|
|
1541 CONSOLE_DEVICE_LOOP (devcons, con)
|
|
|
1542 {
|
|
|
1543 struct device *d;
|
|
|
1544 d = XDEVICE (XCAR (devcons));
|
|
|
1545
|
|
|
1546 if (DEVICE_GTK_P (d))
|
|
|
1547 /* emacs may be exiting */
|
|
|
1548 gtk_check_for_quit_char (d);
|
|
|
1549 else if (DEVICE_TTY_P (d))
|
|
|
1550 check_for_tty_quit_char (d);
|
|
|
1551 }
|
|
|
1552 }
|
|
|
1553 }
|
|
|
1554
|
|
|
1555 #include <gdk/gdkx.h>
|
|
|
1556
|
|
|
1557 static void
|
|
|
1558 drain_gtk_queue (void)
|
|
|
1559
|
|
|
1560 {
|
|
|
1561 /* We can't just spin through here and wait for GTKs idea of the
|
|
|
1562 event queue to get empty, or the queue never gets drained. The
|
|
|
1563 situation is as follows. A process event gets signalled, we put
|
|
|
1564 it on the queue, then we go into Fnext_event(), which calls
|
|
|
1565 drain_gtk_queue(). But gtk_events_pending() will always return
|
|
|
1566 TRUE if there are file-descriptor (aka our process) events
|
|
|
1567 pending. Using GDK_events_pending() only shows us windowing
|
|
|
1568 system events.
|
|
|
1569 */
|
|
|
1570 if (GDK_DISPLAY ())
|
|
|
1571 while (gdk_events_pending ())
|
|
|
1572 gtk_main_iteration ();
|
|
|
1573 }
|
|
|
1574
|
|
|
1575 static int
|
|
|
1576 emacs_gtk_event_pending_p (int user_p)
|
|
|
1577 {
|
|
|
1578 Lisp_Object event;
|
|
|
1579 int tick_count_val;
|
|
|
1580
|
|
|
1581 /* If `user_p' is false, then this function returns whether there are any
|
|
|
1582 X, timeout, or fd events pending (that is, whether emacs_gtk_next_event()
|
|
|
1583 would return immediately without blocking).
|
|
|
1584
|
|
|
1585 if `user_p' is true, then this function returns whether there are any
|
|
|
1586 *user generated* events available (that is, whether there are keyboard
|
|
|
1587 or mouse-click events ready to be read). This also implies that
|
|
|
1588 emacs_Xt_next_event() would not block.
|
|
|
1589
|
|
|
1590 In a non-SIGIO world, this also checks whether the user has typed ^G,
|
|
|
1591 since this is a convenient place to do so. We don't need to do this
|
|
|
1592 in a SIGIO world, since input causes an interrupt.
|
|
|
1593 */
|
|
|
1594
|
|
|
1595 /* This function used to simply check whether there were any X
|
|
|
1596 events (or if user_p was 1, it iterated over all the pending
|
|
|
1597 X events using XCheckIfEvent(), looking for keystrokes and
|
|
|
1598 button events). That worked in the old cheesoid event loop,
|
|
|
1599 which didn't go through XtAppDispatchEvent(), but it doesn't
|
|
|
1600 work any more -- X events may not result in anything. For
|
|
|
1601 example, a button press in a blank part of the menubar appears
|
|
|
1602 as an X event but will not result in any Emacs events (a
|
|
|
1603 button press that activates the menubar results in an Emacs
|
|
|
1604 event through the stop_next_event mechanism).
|
|
|
1605
|
|
|
1606 The only accurate way of determining whether these X events
|
|
|
1607 translate into Emacs events is to go ahead and dispatch them
|
|
|
1608 until there's something on the dispatch queue. */
|
|
|
1609
|
|
|
1610 /* See if there are any user events already on the queue. */
|
|
|
1611 EVENT_CHAIN_LOOP (event, dispatch_event_queue)
|
|
|
1612 if (!user_p || command_event_p (event))
|
|
|
1613 return 1;
|
|
|
1614
|
|
|
1615 /* See if there's any TTY input available.
|
|
|
1616 */
|
|
|
1617 if (poll_fds_for_input (tty_only_mask))
|
|
|
1618 return 1;
|
|
|
1619
|
|
|
1620 if (!user_p)
|
|
|
1621 {
|
|
|
1622 /* If not user_p and there are any timer or file-desc events
|
|
|
1623 pending, we know there will be an event so we're through. */
|
|
|
1624 /* XtInputMask pending_value; */
|
|
|
1625
|
|
|
1626 /* Note that formerly we just checked the value of XtAppPending()
|
|
|
1627 to determine if there was file-desc input. This doesn't
|
|
|
1628 work any more with the signal_event_pipe; XtAppPending()
|
|
|
1629 will says "yes" in this case but there isn't really any
|
|
|
1630 input. Another way of fixing this problem is for the
|
|
|
1631 signal_event_pipe to generate actual input in the form
|
|
|
1632 of an identity eval event or something. (#### maybe this
|
|
|
1633 actually happens?) */
|
|
|
1634
|
|
|
1635 if (poll_fds_for_input (process_only_mask))
|
|
|
1636 return 1;
|
|
|
1637
|
|
|
1638 /* #### Is there any way to do this in Gtk? I don't think there
|
|
|
1639 is a 'peek' for events */
|
|
|
1640 #if 0
|
|
|
1641 pending_value = XtAppPending (Xt_app_con);
|
|
|
1642
|
|
|
1643 if (pending_value & XtIMTimer)
|
|
|
1644 return 1;
|
|
|
1645 #endif
|
|
|
1646 }
|
|
|
1647
|
|
|
1648 /* XtAppPending() can be super-slow, esp. over a network connection.
|
|
|
1649 Quantify results have indicated that in some cases the
|
|
|
1650 call to detect_input_pending() completely dominates the
|
|
|
1651 running time of redisplay(). Fortunately, in a SIGIO world
|
|
|
1652 we can more quickly determine whether there are any X events:
|
|
|
1653 if an event has happened since the last time we checked, then
|
|
|
1654 a SIGIO will have happened. On a machine with broken SIGIO,
|
|
|
1655 we'll still be in an OK state -- the sigio_happened flag
|
|
|
1656 will get set at least once a second, so we'll be no more than
|
|
|
1657 one second behind reality. (In general it's OK if we
|
|
|
1658 erroneously report no input pending when input is actually
|
|
|
1659 pending() -- preemption is just a bit less efficient, that's
|
|
|
1660 all. It's bad bad bad if you err the other way -- you've
|
|
|
1661 promised that `next-event' won't block but it actually will,
|
|
|
1662 and some action might get delayed until the next time you
|
|
|
1663 hit a key.)
|
|
|
1664 */
|
|
|
1665
|
|
|
1666 /* quit_check_signal_tick_count is volatile so try to avoid race conditions
|
|
|
1667 by using a temporary variable */
|
|
|
1668 tick_count_val = quit_check_signal_tick_count;
|
|
|
1669 if (last_quit_check_signal_tick_count != tick_count_val)
|
|
|
1670 {
|
|
|
1671 last_quit_check_signal_tick_count = tick_count_val;
|
|
|
1672
|
|
|
1673 /* We need to drain the entire queue now -- if we only
|
|
|
1674 drain part of it, we may later on end up with events
|
|
|
1675 actually pending but detect_input_pending() returning
|
|
|
1676 false because there wasn't another SIGIO. */
|
|
|
1677
|
|
|
1678 drain_gtk_queue ();
|
|
|
1679
|
|
|
1680 EVENT_CHAIN_LOOP (event, dispatch_event_queue)
|
|
|
1681 if (!user_p || command_event_p (event))
|
|
|
1682 return 1;
|
|
|
1683 }
|
|
|
1684
|
|
|
1685 return 0;
|
|
|
1686 }
|
|
|
1687
|
|
|
1688
|
|
|
1689 /************************************************************************/
|
|
|
1690 /* initialization */
|
|
|
1691 /************************************************************************/
|
|
|
1692
|
|
|
1693 void
|
|
|
1694 syms_of_event_gtk (void)
|
|
|
1695 {
|
|
|
1696 defsymbol (&Qkey_mapping, "key-mapping");
|
|
|
1697 defsymbol (&Qsans_modifiers, "sans-modifiers");
|
|
|
1698 }
|
|
|
1699
|
|
|
1700 void reinit_vars_of_event_gtk (void)
|
|
|
1701 {
|
|
|
1702 gtk_event_stream = xnew (struct event_stream);
|
|
|
1703 gtk_event_stream->event_pending_p = emacs_gtk_event_pending_p;
|
|
|
1704 gtk_event_stream->next_event_cb = emacs_gtk_next_event;
|
|
|
1705 gtk_event_stream->handle_magic_event_cb= emacs_gtk_handle_magic_event;
|
|
|
1706 gtk_event_stream->add_timeout_cb = emacs_gtk_add_timeout;
|
|
|
1707 gtk_event_stream->remove_timeout_cb = emacs_gtk_remove_timeout;
|
|
|
1708 gtk_event_stream->select_console_cb = emacs_gtk_select_console;
|
|
|
1709 gtk_event_stream->unselect_console_cb = emacs_gtk_unselect_console;
|
|
|
1710 gtk_event_stream->select_process_cb = emacs_gtk_select_process;
|
|
|
1711 gtk_event_stream->unselect_process_cb = emacs_gtk_unselect_process;
|
|
|
1712 gtk_event_stream->quit_p_cb = emacs_gtk_quit_p;
|
|
|
1713 gtk_event_stream->create_stream_pair_cb= emacs_gtk_create_stream_pair;
|
|
|
1714 gtk_event_stream->delete_stream_pair_cb= emacs_gtk_delete_stream_pair;
|
|
|
1715
|
|
|
1716 the_GTK_timeout_blocktype = Blocktype_new (struct GTK_timeout_blocktype);
|
|
|
1717
|
|
|
1718 /* this function only makes safe calls */
|
|
|
1719 init_what_input_once ();
|
|
|
1720 }
|
|
|
1721
|
|
|
1722 void
|
|
|
1723 vars_of_event_gtk (void)
|
|
|
1724 {
|
|
|
1725 reinit_vars_of_event_gtk ();
|
|
|
1726
|
|
|
1727 dispatch_event_queue = Qnil;
|
|
|
1728 staticpro (&dispatch_event_queue);
|
|
|
1729 dispatch_event_queue_tail = Qnil;
|
|
|
1730
|
|
|
1731 DEFVAR_BOOL ("gtk-allow-sendevents", >k_allow_sendevents /*
|
|
|
1732 *Non-nil means to allow synthetic events. Nil means they are ignored.
|
|
|
1733 Beware: allowing emacs to process SendEvents opens a big security hole.
|
|
|
1734 */ );
|
|
|
1735 gtk_allow_sendevents = 0;
|
|
|
1736
|
|
|
1737 last_quit_check_signal_tick_count = 0;
|
|
|
1738 }
|
|
|
1739
|
|
|
1740 void
|
|
|
1741 init_event_gtk_late (void) /* called when already initialized */
|
|
|
1742 {
|
|
|
1743 timeout_id_tick = 1;
|
|
|
1744 pending_timeouts = 0;
|
|
|
1745 completed_timeouts = 0;
|
|
|
1746
|
|
|
1747 event_stream = gtk_event_stream;
|
|
|
1748
|
|
|
1749 #if 0
|
|
|
1750 /* Shut GDK the hell up */
|
|
|
1751 gdk_error_trap_push ();
|
|
|
1752 #endif
|
|
|
1753
|
|
|
1754 gdk_input_add (signal_event_pipe[0], GDK_INPUT_READ,
|
|
|
1755 (GdkInputFunction) gtk_what_callback, NULL);
|
|
|
1756 }
|
|
|
1757
|
|
|
1758 /* Bogus utility routines */
|
|
|
1759 static const char *event_name (GdkEvent *ev)
|
|
|
1760 {
|
|
|
1761 return (gtk_event_name (ev->any.type));
|
|
|
1762 }
|
|
|
1763
|
|
|
1764 /* This is down at the bottom of the file so I can avoid polluting the
|
|
|
1765 generic code with this X specific CRAP! */
|
|
|
1766
|
|
|
1767 #include <gdk/gdkx.h>
|
|
|
1768 #include <X11/keysym.h>
|
|
|
1769 /* #### BILL!!! Fix this please! */
|
|
|
1770
|
|
|
1771
|
|
|
1772 /************************************************************************/
|
|
|
1773 /* keymap handling */
|
|
|
1774 /************************************************************************/
|
|
|
1775
|
|
|
1776 /* X bogusly doesn't define the interpretations of any bits besides
|
|
|
1777 ModControl, ModShift, and ModLock; so the Interclient Communication
|
|
|
1778 Conventions Manual says that we have to bend over backwards to figure
|
|
|
1779 out what the other modifier bits mean. According to ICCCM:
|
|
|
1780
|
|
|
1781 - Any keycode which is assigned ModControl is a "control" key.
|
|
|
1782
|
|
|
1783 - Any modifier bit which is assigned to a keycode which generates Meta_L
|
|
|
1784 or Meta_R is the modifier bit meaning "meta". Likewise for Super, Hyper,
|
|
|
1785 etc.
|
|
|
1786
|
|
|
1787 - Any keypress event which contains ModControl in its state should be
|
|
|
1788 interpreted as a "control" character.
|
|
|
1789
|
|
|
1790 - Any keypress event which contains a modifier bit in its state which is
|
|
|
1791 generated by a keycode whose corresponding keysym is Meta_L or Meta_R
|
|
|
1792 should be interpreted as a "meta" character. Likewise for Super, Hyper,
|
|
|
1793 etc.
|
|
|
1794
|
|
|
1795 - It is illegal for a keysym to be associated with more than one modifier
|
|
|
1796 bit.
|
|
|
1797
|
|
|
1798 This means that the only thing that emacs can reasonably interpret as a
|
|
|
1799 "meta" key is a key whose keysym is Meta_L or Meta_R, and which generates
|
|
|
1800 one of the modifier bits Mod1-Mod5.
|
|
|
1801
|
|
|
1802 Unfortunately, many keyboards don't have Meta keys in their default
|
|
|
1803 configuration. So, if there are no Meta keys, but there are "Alt" keys,
|
|
|
1804 emacs will interpret Alt as Meta. If there are both Meta and Alt keys,
|
|
|
1805 then the Meta keys mean "Meta", and the Alt keys mean "Alt" (it used to
|
|
|
1806 mean "Symbol," but that just confused the hell out of way too many people).
|
|
|
1807
|
|
|
1808 This works with the default configurations of the 19 keyboard-types I've
|
|
|
1809 checked.
|
|
|
1810
|
|
|
1811 Emacs detects keyboard configurations which violate the above rules, and
|
|
|
1812 prints an error message on the standard-error-output. (Perhaps it should
|
|
|
1813 use a pop-up-window instead.)
|
|
|
1814 */
|
|
|
1815
|
|
|
1816 static void
|
|
|
1817 gtk_reset_key_mapping (struct device *d)
|
|
|
1818 {
|
|
|
1819 Display *display = GDK_DISPLAY ();
|
|
|
1820 struct gtk_device *xd = DEVICE_GTK_DATA (d);
|
|
|
1821 XModifierKeymap *map = (XModifierKeymap *) xd->x_keysym_map;
|
|
|
1822 KeySym *keysym, *keysym_end;
|
|
|
1823 Lisp_Object hashtable;
|
|
|
1824 int key_code_count, keysyms_per_code;
|
|
|
1825
|
|
|
1826 if (map)
|
|
|
1827 XFree ((char *) map);
|
|
|
1828 XDisplayKeycodes (display,
|
|
|
1829 &xd->x_keysym_map_min_code,
|
|
|
1830 &xd->x_keysym_map_max_code);
|
|
|
1831 key_code_count = xd->x_keysym_map_max_code - xd->x_keysym_map_min_code + 1;
|
|
|
1832 map = (XModifierKeymap *)
|
|
|
1833 XGetKeyboardMapping (display, xd->x_keysym_map_min_code, key_code_count,
|
|
|
1834 &xd->x_keysym_map_keysyms_per_code);
|
|
|
1835
|
|
|
1836 xd->x_keysym_map = (void *)map;
|
|
|
1837 hashtable = xd->x_keysym_map_hashtable;
|
|
|
1838 if (HASH_TABLEP (hashtable))
|
|
|
1839 {
|
|
|
1840 Fclrhash (hashtable);
|
|
|
1841 }
|
|
|
1842 else
|
|
|
1843 {
|
|
|
1844 xd->x_keysym_map_hashtable = hashtable =
|
|
|
1845 make_lisp_hash_table (128, HASH_TABLE_NON_WEAK, HASH_TABLE_EQUAL);
|
|
|
1846 }
|
|
|
1847
|
|
|
1848 for (keysym = (KeySym *) map,
|
|
|
1849 keysyms_per_code = xd->x_keysym_map_keysyms_per_code,
|
|
|
1850 keysym_end = keysym + (key_code_count * keysyms_per_code);
|
|
|
1851 keysym < keysym_end;
|
|
|
1852 keysym += keysyms_per_code)
|
|
|
1853 {
|
|
|
1854 int j;
|
|
|
1855
|
|
|
1856 if (keysym[0] == NoSymbol)
|
|
|
1857 continue;
|
|
|
1858
|
|
|
1859 {
|
|
|
1860 char *name = XKeysymToString (keysym[0]);
|
|
|
1861 Lisp_Object sym = gtk_keysym_to_emacs_keysym (keysym[0], 0);
|
|
|
1862 if (name)
|
|
|
1863 {
|
|
|
1864 Fputhash (build_string (name), Qsans_modifiers, hashtable);
|
|
|
1865 Fputhash (sym, Qsans_modifiers, hashtable);
|
|
|
1866 }
|
|
|
1867 }
|
|
|
1868
|
|
|
1869 for (j = 1; j < keysyms_per_code; j++)
|
|
|
1870 {
|
|
|
1871 if (keysym[j] != keysym[0] &&
|
|
|
1872 keysym[j] != NoSymbol)
|
|
|
1873 {
|
|
|
1874 char *name = XKeysymToString (keysym[j]);
|
|
|
1875 Lisp_Object sym = gtk_keysym_to_emacs_keysym (keysym[j], 0);
|
|
|
1876 if (name && NILP (Fgethash (sym, hashtable, Qnil)))
|
|
|
1877 {
|
|
|
1878 Fputhash (build_string (name), Qt, hashtable);
|
|
|
1879 Fputhash (sym, Qt, hashtable);
|
|
|
1880 }
|
|
|
1881 }
|
|
|
1882 }
|
|
|
1883 }
|
|
|
1884 }
|
|
|
1885
|
|
|
1886 static const char *
|
|
|
1887 index_to_name (int indice)
|
|
|
1888 {
|
|
|
1889 switch (indice)
|
|
|
1890 {
|
|
|
1891 case ShiftMapIndex: return "ModShift";
|
|
|
1892 case LockMapIndex: return "ModLock";
|
|
|
1893 case ControlMapIndex: return "ModControl";
|
|
|
1894 case Mod1MapIndex: return "Mod1";
|
|
|
1895 case Mod2MapIndex: return "Mod2";
|
|
|
1896 case Mod3MapIndex: return "Mod3";
|
|
|
1897 case Mod4MapIndex: return "Mod4";
|
|
|
1898 case Mod5MapIndex: return "Mod5";
|
|
|
1899 default: return "???";
|
|
|
1900 }
|
|
|
1901 }
|
|
|
1902
|
|
|
1903 /* Boy, I really wish C had local functions... */
|
|
|
1904 struct c_doesnt_have_closures /* #### not yet used */
|
|
|
1905 {
|
|
|
1906 int warned_about_overlapping_modifiers;
|
|
|
1907 int warned_about_predefined_modifiers;
|
|
|
1908 int warned_about_duplicate_modifiers;
|
|
|
1909 int meta_bit;
|
|
|
1910 int hyper_bit;
|
|
|
1911 int super_bit;
|
|
|
1912 int alt_bit;
|
|
|
1913 int mode_bit;
|
|
|
1914 };
|
|
|
1915
|
|
|
1916 static void
|
|
|
1917 gtk_reset_modifier_mapping (struct device *d)
|
|
|
1918 {
|
|
|
1919 Display *display = GDK_DISPLAY ();
|
|
|
1920 struct gtk_device *xd = DEVICE_GTK_DATA (d);
|
|
|
1921 int modifier_index, modifier_key, column, mkpm;
|
|
|
1922 int warned_about_overlapping_modifiers = 0;
|
|
|
1923 /* int warned_about_predefined_modifiers = 0; */
|
|
|
1924 /* int warned_about_duplicate_modifiers = 0; */
|
|
|
1925 int meta_bit = 0;
|
|
|
1926 int hyper_bit = 0;
|
|
|
1927 int super_bit = 0;
|
|
|
1928 int alt_bit = 0;
|
|
|
1929 int mode_bit = 0;
|
|
|
1930 XModifierKeymap *map = (XModifierKeymap *) xd->x_modifier_keymap;
|
|
|
1931
|
|
|
1932 xd->lock_interpretation = 0;
|
|
|
1933
|
|
|
1934 if (map)
|
|
|
1935 XFreeModifiermap (map);
|
|
|
1936
|
|
|
1937 gtk_reset_key_mapping (d);
|
|
|
1938
|
|
|
1939 xd->x_modifier_keymap = map = XGetModifierMapping (display);
|
|
|
1940
|
|
|
1941 /* Boy, I really wish C had local functions...
|
|
|
1942 */
|
|
|
1943
|
|
|
1944 /* The call to warn_when_safe must be on the same line as the string or
|
|
|
1945 make-msgfile won't pick it up properly (the newline doesn't confuse
|
|
|
1946 it, but the backslash does). */
|
|
|
1947
|
|
|
1948 #define store_modifier(name,old) \
|
|
|
1949 old = modifier_index;
|
|
|
1950
|
|
|
1951 mkpm = map->max_keypermod;
|
|
|
1952 for (modifier_index = 0; modifier_index < 8; modifier_index++)
|
|
|
1953 for (modifier_key = 0; modifier_key < mkpm; modifier_key++) {
|
|
|
1954 KeySym last_sym = 0;
|
|
|
1955 for (column = 0; column < 4; column += 2) {
|
|
|
1956 KeyCode code = map->modifiermap[modifier_index * mkpm
|
|
|
1957 + modifier_key];
|
|
|
1958 KeySym sym = (code ? XKeycodeToKeysym (display, code, column) : 0);
|
|
|
1959 if (sym == last_sym) continue;
|
|
|
1960 last_sym = sym;
|
|
|
1961 switch (sym) {
|
|
|
1962 case XK_Mode_switch:store_modifier ("Mode_switch", mode_bit); break;
|
|
|
1963 case XK_Meta_L: store_modifier ("Meta_L", meta_bit); break;
|
|
|
1964 case XK_Meta_R: store_modifier ("Meta_R", meta_bit); break;
|
|
|
1965 case XK_Super_L: store_modifier ("Super_L", super_bit); break;
|
|
|
1966 case XK_Super_R: store_modifier ("Super_R", super_bit); break;
|
|
|
1967 case XK_Hyper_L: store_modifier ("Hyper_L", hyper_bit); break;
|
|
|
1968 case XK_Hyper_R: store_modifier ("Hyper_R", hyper_bit); break;
|
|
|
1969 case XK_Alt_L: store_modifier ("Alt_L", alt_bit); break;
|
|
|
1970 case XK_Alt_R: store_modifier ("Alt_R", alt_bit); break;
|
|
|
1971 #if 0
|
|
|
1972 case XK_Control_L: check_modifier ("Control_L", ControlMask); break;
|
|
|
1973 case XK_Control_R: check_modifier ("Control_R", ControlMask); break;
|
|
|
1974 case XK_Shift_L: check_modifier ("Shift_L", ShiftMask); break;
|
|
|
1975 case XK_Shift_R: check_modifier ("Shift_R", ShiftMask); break;
|
|
|
1976 #endif
|
|
|
1977 case XK_Shift_Lock: /* check_modifier ("Shift_Lock", LockMask); */
|
|
|
1978 xd->lock_interpretation = XK_Shift_Lock; break;
|
|
|
1979 case XK_Caps_Lock: /* check_modifier ("Caps_Lock", LockMask); */
|
|
|
1980 xd->lock_interpretation = XK_Caps_Lock; break;
|
|
|
1981
|
|
|
1982 /* It probably doesn't make any sense for a modifier bit to be
|
|
|
1983 assigned to a key that is not one of the above, but OpenWindows
|
|
|
1984 assigns modifier bits to a couple of random function keys for
|
|
|
1985 no reason that I can discern, so printing a warning here would
|
|
|
1986 be annoying. */
|
|
|
1987 }
|
|
|
1988 }
|
|
|
1989 }
|
|
|
1990 #undef store_modifier
|
|
|
1991 #undef check_modifier
|
|
|
1992 #undef modwarn
|
|
|
1993 #undef modbarf
|
|
|
1994
|
|
|
1995 /* If there was no Meta key, then try using the Alt key instead.
|
|
|
1996 If there is both a Meta key and an Alt key, then the Alt key
|
|
|
1997 is not disturbed and remains an Alt key. */
|
|
|
1998 if (! meta_bit && alt_bit)
|
|
|
1999 meta_bit = alt_bit, alt_bit = 0;
|
|
|
2000
|
|
|
2001 /* mode_bit overrides everything, since it's processed down inside of
|
|
|
2002 XLookupString() instead of by us. If Meta and Mode_switch both
|
|
|
2003 generate the same modifier bit (which is an error), then we don't
|
|
|
2004 interpret that bit as Meta, because we can't make XLookupString()
|
|
|
2005 not interpret it as Mode_switch; and interpreting it as both would
|
|
|
2006 be totally wrong. */
|
|
|
2007 if (mode_bit)
|
|
|
2008 {
|
|
|
2009 const char *warn = 0;
|
|
|
2010 if (mode_bit == meta_bit) warn = "Meta", meta_bit = 0;
|
|
|
2011 else if (mode_bit == hyper_bit) warn = "Hyper", hyper_bit = 0;
|
|
|
2012 else if (mode_bit == super_bit) warn = "Super", super_bit = 0;
|
|
|
2013 else if (mode_bit == alt_bit) warn = "Alt", alt_bit = 0;
|
|
|
2014 if (warn)
|
|
|
2015 {
|
|
|
2016 warn_when_safe
|
|
|
2017 (Qkey_mapping, Qwarning,
|
|
|
2018 "XEmacs: %s is being used for both Mode_switch and %s.",
|
|
|
2019 index_to_name (mode_bit), warn),
|
|
|
2020 warned_about_overlapping_modifiers = 1;
|
|
|
2021 }
|
|
|
2022 }
|
|
|
2023 #undef index_to_name
|
|
|
2024
|
|
|
2025 xd->MetaMask = (meta_bit ? (1 << meta_bit) : 0);
|
|
|
2026 xd->HyperMask = (hyper_bit ? (1 << hyper_bit) : 0);
|
|
|
2027 xd->SuperMask = (super_bit ? (1 << super_bit) : 0);
|
|
|
2028 xd->AltMask = (alt_bit ? (1 << alt_bit) : 0);
|
|
|
2029 xd->ModeMask = (mode_bit ? (1 << mode_bit) : 0); /* unused */
|
|
|
2030
|
|
|
2031 }
|
|
|
2032
|
|
|
2033 void
|
|
|
2034 gtk_init_modifier_mapping (struct device *d)
|
|
|
2035 {
|
|
|
2036 struct gtk_device *gd = DEVICE_GTK_DATA (d);
|
|
|
2037 gd->x_keysym_map_hashtable = Qnil;
|
|
|
2038 gd->x_keysym_map = NULL;
|
|
|
2039 gd->x_modifier_keymap = NULL;
|
|
|
2040 gtk_reset_modifier_mapping (d);
|
|
|
2041 }
|
|
|
2042
|
|
|
2043 #if 0
|
|
|
2044 static int
|
|
|
2045 gtk_key_is_modifier_p (KeyCode keycode, struct device *d)
|
|
|
2046 {
|
|
|
2047 struct gtk_device *xd = DEVICE_GTK_DATA (d);
|
|
|
2048 KeySym *syms;
|
|
|
2049 KeySym *map = (KeySym *) xd->x_keysym_map;
|
|
|
2050 int i;
|
|
|
2051
|
|
|
2052 if (keycode < xd->x_keysym_map_min_code ||
|
|
|
2053 keycode > xd->x_keysym_map_max_code)
|
|
|
2054 return 0;
|
|
|
2055
|
|
|
2056 syms = &map [(keycode - xd->x_keysym_map_min_code) *
|
|
|
2057 xd->x_keysym_map_keysyms_per_code];
|
|
|
2058 for (i = 0; i < xd->x_keysym_map_keysyms_per_code; i++)
|
|
|
2059 if (IsModifierKey (syms [i]) ||
|
|
|
2060 syms [i] == XK_Mode_switch) /* why doesn't IsModifierKey count this? */
|
|
|
2061 return 1;
|
|
|
2062 return 0;
|
|
|
2063 }
|
|
|
2064 #endif
|
|
|
2065
|
|
|
2066 struct _quit_predicate_closure {
|
|
|
2067 struct device *device;
|
|
|
2068 Bool *critical;
|
|
|
2069 };
|
|
|
2070
|
|
|
2071 static Bool
|
|
|
2072 quit_char_predicate (Display *display, XEvent *event, XPointer data)
|
|
|
2073 {
|
|
|
2074 struct _quit_predicate_closure *cl = (struct _quit_predicate_closure *) data;
|
|
|
2075 struct device *d = cl->device;
|
|
|
2076 struct frame *f = NULL;
|
|
|
2077 struct gtk_device *gd = DEVICE_GTK_DATA (d);
|
|
|
2078 char c, quit_char;
|
|
|
2079 Bool *critical = cl->critical;
|
|
|
2080 Lisp_Object keysym;
|
|
|
2081 GdkWindow *window = gdk_window_lookup (event->xany.window);
|
|
|
2082 guint32 keycode = 0;
|
|
|
2083 GdkEventKey gdk_event;
|
|
|
2084
|
|
|
2085 if (window)
|
|
|
2086 f = gtk_any_window_to_frame (d, window);
|
|
|
2087
|
|
|
2088 if (critical)
|
|
|
2089 *critical = False;
|
|
|
2090
|
|
|
2091 if ((event->type != KeyPress) ||
|
|
|
2092 (! window) ||
|
|
|
2093 (! f) ||
|
|
|
2094 (event->xkey.state
|
|
|
2095 & (gd->MetaMask | gd->HyperMask | gd->SuperMask | gd->AltMask)))
|
|
|
2096 {
|
|
|
2097 return 0;
|
|
|
2098 }
|
|
|
2099
|
|
|
2100 {
|
|
|
2101 char dummy[256];
|
|
|
2102 XLookupString (&(event->xkey), dummy, 200, (KeySym *)&keycode, 0);
|
|
|
2103 }
|
|
|
2104
|
|
|
2105 memset (&gdk_event, 0, sizeof (gdk_event));
|
|
|
2106 gdk_event.type = GDK_KEY_PRESS;
|
|
|
2107 gdk_event.window = window;
|
|
|
2108 gdk_event.keyval = keycode;
|
|
|
2109 gdk_event.state = event->xkey.state;
|
|
|
2110
|
|
|
2111 /* This duplicates some code that exists elsewhere, but it's relatively
|
|
|
2112 fast and doesn't cons. */
|
|
|
2113 keysym = gtk_to_emacs_keysym (d, &gdk_event, 1);
|
|
|
2114 if (NILP (keysym)) return 0;
|
|
|
2115 if (CHAR_OR_CHAR_INTP (keysym))
|
|
|
2116 c = XCHAR_OR_CHAR_INT (keysym);
|
|
|
2117 /* Highly doubtful that these are the quit character, but... */
|
|
|
2118 else if (EQ (keysym, QKbackspace)) c = '\b';
|
|
|
2119 else if (EQ (keysym, QKtab)) c = '\t';
|
|
|
2120 else if (EQ (keysym, QKlinefeed)) c = '\n';
|
|
|
2121 else if (EQ (keysym, QKreturn)) c = '\r';
|
|
|
2122 else if (EQ (keysym, QKescape)) c = 27;
|
|
|
2123 else if (EQ (keysym, QKspace)) c = ' ';
|
|
|
2124 else if (EQ (keysym, QKdelete)) c = 127;
|
|
|
2125 else return 0;
|
|
|
2126
|
|
|
2127 if (event->xkey.state & gd->MetaMask) c |= 0x80;
|
|
|
2128 if ((event->xkey.state & ControlMask) && !(c >= 'A' && c <= 'Z'))
|
|
|
2129 c &= 0x1F; /* unshifted control characters */
|
|
|
2130 quit_char = CONSOLE_QUIT_CHAR (XCONSOLE (DEVICE_CONSOLE (d)));
|
|
|
2131
|
|
|
2132 if (c == quit_char)
|
|
|
2133 return True;
|
|
|
2134 /* If we've got Control-Shift-G instead of Control-G, that means
|
|
|
2135 we have a critical_quit. Caps_Lock is its own modifier, so it
|
|
|
2136 won't cause ^G to act differently than before. */
|
|
|
2137 if (event->xkey.state & ControlMask) c &= 0x1F;
|
|
|
2138 if (c == quit_char)
|
|
|
2139 {
|
|
|
2140 if (critical) *critical = True;
|
|
|
2141 return True;
|
|
|
2142 }
|
|
|
2143 return False;
|
|
|
2144 }
|
|
|
2145
|
|
|
2146 static void
|
|
|
2147 gtk_check_for_quit_char (struct device *d)
|
|
|
2148 {
|
|
|
2149 XEvent event;
|
|
|
2150 int queued;
|
|
|
2151 Bool critical_quit = False;
|
|
|
2152 struct _quit_predicate_closure closure;
|
|
|
2153
|
|
|
2154 XEventsQueued (GDK_DISPLAY (), QueuedAfterReading);
|
|
|
2155
|
|
|
2156 closure.device = d;
|
|
|
2157 closure.critical = &critical_quit;
|
|
|
2158
|
|
|
2159 queued = XCheckIfEvent (GDK_DISPLAY (), &event, quit_char_predicate, (char *) &closure);
|
|
|
2160
|
|
|
2161 if (queued)
|
|
|
2162 {
|
|
|
2163 Vquit_flag = (critical_quit ? Qcritical : Qt);
|
|
|
2164 }
|
|
|
2165 }
|
