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462
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1 /* GTK selection processing for XEmacs
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2 Copyright (C) 1990, 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
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3
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4 This file is part of XEmacs.
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5
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6 XEmacs is free software; you can redistribute it and/or modify it
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7 under the terms of the GNU General Public License as published by the
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8 Free Software Foundation; either version 2, or (at your option) any
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9 later version.
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10
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11 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with XEmacs; see the file COPYING. If not, write to
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18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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19 Boston, MA 02111-1307, USA. */
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20
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21 /* Synched up with: Not synched with FSF. */
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22
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23 /* Authorship:
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24
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25 Written by Kevin Gallo for FSF Emacs.
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26 Rewritten for mswindows by Jonathan Harris, December 1997 for 21.0.
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27 Rewritten for GTK by William Perry, April 2000 for 21.1
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28 */
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29
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30
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31 #include <config.h>
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32 #include "lisp.h"
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33 #include "events.h"
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34 #include "buffer.h"
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35 #include "device.h"
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36 #include "console-gtk.h"
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37 #include "select.h"
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38 #include "opaque.h"
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39 #include "frame.h"
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40
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41 static Lisp_Object Vretrieved_selection;
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42 static gboolean waiting_for_selection;
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43 Lisp_Object Vgtk_sent_selection_hooks;
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44
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45 static Lisp_Object atom_to_symbol (struct device *d, GdkAtom atom);
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46 static GdkAtom symbol_to_gtk_atom (struct device *d, Lisp_Object sym, int only_if_exists);
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47
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48 static void lisp_data_to_selection_data (struct device *,
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49 Lisp_Object obj,
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50 unsigned char **data_ret,
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51 GdkAtom *type_ret,
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52 unsigned int *size_ret,
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53 int *format_ret);
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54 static Lisp_Object selection_data_to_lisp_data (struct device *,
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55 Extbyte *data,
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56 size_t size,
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57 GdkAtom type,
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58 int format);
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59
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60 /* Set the selection data to GDK_NONE and NULL data, meaning we were
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61 ** unable to do what they wanted.
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62 */
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63 static void
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64 gtk_decline_selection_request (GtkSelectionData *data)
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65 {
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66 gtk_selection_data_set (data, GDK_NONE, 0, NULL, 0);
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67 }
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68
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69 /* Used as an unwind-protect clause so that, if a selection-converter signals
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70 an error, we tell the requestor that we were unable to do what they wanted
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71 before we throw to top-level or go into the debugger or whatever.
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72 */
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73 struct _selection_closure
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74 {
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75 GtkSelectionData *data;
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76 gboolean successful;
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77 };
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78
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79 static Lisp_Object
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80 gtk_selection_request_lisp_error (Lisp_Object closure)
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81 {
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82 struct _selection_closure *cl = (struct _selection_closure *)
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83 get_opaque_ptr (closure);
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84
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85 free_opaque_ptr (closure);
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86 if (cl->successful == TRUE)
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87 return Qnil;
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88 gtk_decline_selection_request (cl->data);
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89 return Qnil;
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90 }
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91
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92 /* This provides the current selection to a requester.
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93 **
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94 ** This is connected to the selection_get() signal of the application
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95 ** shell in device-gtk.c:gtk_init_device().
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96 **
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97 ** This is radically different than the old selection code (21.1.x),
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98 ** but has been modeled after the X code, and appears to work.
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99 **
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100 ** WMP Feb 12 2001
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101 */
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102 void
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103 emacs_gtk_selection_handle (GtkWidget *widget,
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104 GtkSelectionData *selection_data,
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105 guint info,
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106 guint time_stamp,
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107 gpointer data)
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108 {
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109 /* This function can GC */
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110 struct gcpro gcpro1, gcpro2;
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111 Lisp_Object temp_obj;
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112 Lisp_Object selection_symbol;
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113 Lisp_Object target_symbol = Qnil;
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114 Lisp_Object converted_selection = Qnil;
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115 guint32 local_selection_time;
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116 Lisp_Object successful_p = Qnil;
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117 int count;
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118 struct device *d = decode_gtk_device (Qnil);
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119 struct _selection_closure *cl = NULL;
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120
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121 GCPRO2 (converted_selection, target_symbol);
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122
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123 selection_symbol = atom_to_symbol (d, selection_data->selection);
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124 target_symbol = atom_to_symbol (d, selection_data->target);
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125
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126 #if 0 /* #### MULTIPLE doesn't work yet */
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127 if (EQ (target_symbol, QMULTIPLE))
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128 target_symbol = fetch_multiple_target (selection_data);
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129 #endif
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130
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131 temp_obj = Fget_selection_timestamp (selection_symbol);
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132
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133 if (NILP (temp_obj))
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134 {
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135 /* We don't appear to have the selection. */
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136 gtk_decline_selection_request (selection_data);
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137
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138 goto DONE_LABEL;
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139 }
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140
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141 local_selection_time = * (guint32 *) XOPAQUE_DATA (temp_obj);
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142
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143 if (time_stamp != GDK_CURRENT_TIME &&
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144 local_selection_time > time_stamp)
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145 {
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146 /* Someone asked for the selection, and we have one, but not the one
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147 they're looking for. */
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148 gtk_decline_selection_request (selection_data);
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149 goto DONE_LABEL;
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150 }
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151
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152 converted_selection = select_convert_out (selection_symbol,
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153 target_symbol, Qnil);
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154
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155 /* #### Is this the right thing to do? I'm no X expert. -- ajh */
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156 if (NILP (converted_selection))
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157 {
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158 /* We don't appear to have a selection in that data type. */
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159 gtk_decline_selection_request (selection_data);
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160 goto DONE_LABEL;
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161 }
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162
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163 count = specpdl_depth ();
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164
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165 cl = (struct _selection_closure *) xmalloc (sizeof (*cl));
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166 cl->data = selection_data;
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167 cl->successful = FALSE;
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168
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169 record_unwind_protect (gtk_selection_request_lisp_error,
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170 make_opaque_ptr (cl));
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171
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172 {
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173 unsigned char *data;
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174 unsigned int size;
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175 int format;
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176 GdkAtom type;
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177 lisp_data_to_selection_data (d, converted_selection,
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178 &data, &type, &size, &format);
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179
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180 gtk_selection_data_set (selection_data, type, format, data, size);
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181 successful_p = Qt;
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182 /* Tell x_selection_request_lisp_error() it's cool. */
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183 cl->successful = TRUE;
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184 xfree (data);
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185 }
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186
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187 unbind_to (count, Qnil);
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188
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189 DONE_LABEL:
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190
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191 if (cl) xfree (cl);
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192
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193 UNGCPRO;
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194
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195 /* Let random lisp code notice that the selection has been asked for. */
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196 {
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197 Lisp_Object val = Vgtk_sent_selection_hooks;
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198 if (!UNBOUNDP (val) && !NILP (val))
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199 {
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200 Lisp_Object rest;
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201 if (CONSP (val) && !EQ (XCAR (val), Qlambda))
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202 for (rest = val; !NILP (rest); rest = Fcdr (rest))
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203 call3 (Fcar (rest), selection_symbol, target_symbol, successful_p);
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204 else
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205 call3 (val, selection_symbol, target_symbol, successful_p);
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206 }
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207 }
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208 }
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209
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210
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211
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212 static GtkWidget *reading_selection_reply;
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213 static GdkAtom reading_which_selection;
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214 static int selection_reply_timed_out;
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215
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216 /* Gets the current selection owned by another application */
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217 void
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218 emacs_gtk_selection_received (GtkWidget *widget,
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219 GtkSelectionData *selection_data,
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220 gpointer user_data)
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221 {
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222 waiting_for_selection = FALSE;
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223 Vretrieved_selection = Qnil;
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224
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225 reading_selection_reply = NULL;
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226
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227 signal_fake_event ();
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228
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229 if (selection_data->length < 0)
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230 {
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231 return;
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232 }
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233
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234 Vretrieved_selection =
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235 selection_data_to_lisp_data (NULL,
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236 selection_data->data,
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237 selection_data->length,
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238 selection_data->type,
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239 selection_data->format);
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240 }
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241
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242 static int
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243 selection_reply_done (void *ignore)
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244 {
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245 return !reading_selection_reply;
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246 }
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247
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248 /* Do protocol to read selection-data from the server.
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249 Converts this to lisp data and returns it.
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250 */
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251 static Lisp_Object
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252 gtk_get_foreign_selection (Lisp_Object selection_symbol,
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253 Lisp_Object target_type)
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254 {
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255 /* This function can GC */
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256 struct device *d = decode_gtk_device (Qnil);
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257 GtkWidget *requestor = DEVICE_GTK_APP_SHELL (d);
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258 guint32 requestor_time = DEVICE_GTK_MOUSE_TIMESTAMP (d);
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259 GdkAtom selection_atom = symbol_to_gtk_atom (d, selection_symbol, 0);
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260 int speccount;
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261 GdkAtom type_atom = symbol_to_gtk_atom (d, (CONSP (target_type) ?
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262 XCAR (target_type) : target_type), 0);
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263
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264 gtk_selection_convert (requestor, selection_atom, type_atom,
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265 requestor_time);
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266
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267 signal_fake_event ();
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268
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269 /* Block until the reply has been read. */
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270 reading_selection_reply = requestor;
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271 reading_which_selection = selection_atom;
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272 selection_reply_timed_out = 0;
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273
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274 speccount = specpdl_depth ();
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275
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276 #if 0
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277 /* add a timeout handler */
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278 if (gtk_selection_timeout > 0)
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279 {
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280 Lisp_Object id = Fadd_timeout (make_int (x_selection_timeout),
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281 Qx_selection_reply_timeout_internal,
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282 Qnil, Qnil);
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283 record_unwind_protect (Fdisable_timeout, id);
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284 }
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285 #endif
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286
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287 /* This is ^Gable */
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288 wait_delaying_user_input (selection_reply_done, 0);
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289
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290 if (selection_reply_timed_out)
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563
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291 signal_error (Qselection_conversion_error, "timed out waiting for reply from selection owner", Qunbound);
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462
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292
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293 unbind_to (speccount, Qnil);
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294
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295 /* otherwise, the selection is waiting for us on the requested property. */
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296 return select_convert_in (selection_symbol,
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297 target_type,
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298 Vretrieved_selection);
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299 }
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300
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301
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302 #if 0
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303 static void
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304 gtk_get_window_property (struct device *d, GtkWidget *window, GdkAtom property,
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305 Extbyte **data_ret, int *bytes_ret,
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306 GdkAtom *actual_type_ret, int *actual_format_ret,
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307 unsigned long *actual_size_ret, int delete_p)
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308 {
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309 size_t total_size;
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310 unsigned long bytes_remaining;
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311 int offset = 0;
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312 unsigned char *tmp_data = 0;
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313 int result;
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314 int buffer_size = SELECTION_QUANTUM (display);
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315 if (buffer_size > MAX_SELECTION_QUANTUM) buffer_size = MAX_SELECTION_QUANTUM;
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316
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317 /* First probe the thing to find out how big it is. */
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318 result = XGetWindowProperty (display, window, property,
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319 0, 0, False, AnyPropertyType,
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320 actual_type_ret, actual_format_ret,
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321 actual_size_ret,
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322 &bytes_remaining, &tmp_data);
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323 if (result != Success)
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324 {
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325 *data_ret = 0;
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326 *bytes_ret = 0;
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327 return;
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328 }
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329 XFree ((char *) tmp_data);
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330
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331 if (*actual_type_ret == None || *actual_format_ret == 0)
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332 {
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333 if (delete_p) XDeleteProperty (display, window, property);
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334 *data_ret = 0;
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335 *bytes_ret = 0;
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336 return;
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337 }
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338
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339 total_size = bytes_remaining + 1;
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340 *data_ret = (Extbyte *) xmalloc (total_size);
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341
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342 /* Now read, until we've gotten it all. */
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343 while (bytes_remaining)
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344 {
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345 #if 0
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346 int last = bytes_remaining;
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347 #endif
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348 result =
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349 XGetWindowProperty (display, window, property,
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350 offset/4, buffer_size/4,
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351 (delete_p ? True : False),
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352 AnyPropertyType,
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353 actual_type_ret, actual_format_ret,
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354 actual_size_ret, &bytes_remaining, &tmp_data);
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355 #if 0
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356 stderr_out ("<< read %d\n", last-bytes_remaining);
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357 #endif
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358 /* If this doesn't return Success at this point, it means that
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359 some clod deleted the selection while we were in the midst of
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360 reading it. Deal with that, I guess....
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361 */
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362 if (result != Success) break;
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363 *actual_size_ret *= *actual_format_ret / 8;
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364 memcpy ((*data_ret) + offset, tmp_data, *actual_size_ret);
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365 offset += *actual_size_ret;
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366 XFree ((char *) tmp_data);
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367 }
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368 *bytes_ret = offset;
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369 }
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370
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371
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372 static void
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373 receive_incremental_selection (Display *display, Window window, Atom property,
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374 /* this one is for error messages only */
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375 Lisp_Object target_type,
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376 unsigned int min_size_bytes,
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377 Extbyte **data_ret, int *size_bytes_ret,
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378 Atom *type_ret, int *format_ret,
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379 unsigned long *size_ret)
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380 {
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381 /* This function can GC */
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382 int offset = 0;
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383 int prop_id;
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384 *size_bytes_ret = min_size_bytes;
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385 *data_ret = (Extbyte *) xmalloc (*size_bytes_ret);
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386 #if 0
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387 stderr_out ("\nread INCR %d\n", min_size_bytes);
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388 #endif
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389 /* At this point, we have read an INCR property, and deleted it (which
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390 is how we ack its receipt: the sending window will be selecting
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391 PropertyNotify events on our window to notice this).
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392
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393 Now, we must loop, waiting for the sending window to put a value on
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394 that property, then reading the property, then deleting it to ack.
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395 We are done when the sender places a property of length 0.
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396 */
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397 prop_id = expect_property_change (display, window, property,
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398 PropertyNewValue);
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399 while (1)
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400 {
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401 Extbyte *tmp_data;
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402 int tmp_size_bytes;
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403 wait_for_property_change (prop_id);
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404 /* expect it again immediately, because x_get_window_property may
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405 .. no it won't, I don't get it.
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406 .. Ok, I get it now, the Xt code that implements INCR is broken.
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407 */
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408 prop_id = expect_property_change (display, window, property,
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409 PropertyNewValue);
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410 x_get_window_property (display, window, property,
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411 &tmp_data, &tmp_size_bytes,
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412 type_ret, format_ret, size_ret, 1);
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413
|
|
|
414 if (tmp_size_bytes == 0) /* we're done */
|
|
|
415 {
|
|
|
416 #if 0
|
|
|
417 stderr_out (" read INCR done\n");
|
|
|
418 #endif
|
|
|
419 unexpect_property_change (prop_id);
|
|
|
420 if (tmp_data) xfree (tmp_data);
|
|
|
421 break;
|
|
|
422 }
|
|
|
423 #if 0
|
|
|
424 stderr_out (" read INCR %d\n", tmp_size_bytes);
|
|
|
425 #endif
|
|
|
426 if (*size_bytes_ret < offset + tmp_size_bytes)
|
|
|
427 {
|
|
|
428 #if 0
|
|
|
429 stderr_out (" read INCR realloc %d -> %d\n",
|
|
|
430 *size_bytes_ret, offset + tmp_size_bytes);
|
|
|
431 #endif
|
|
|
432 *size_bytes_ret = offset + tmp_size_bytes;
|
|
|
433 *data_ret = (Extbyte *) xrealloc (*data_ret, *size_bytes_ret);
|
|
|
434 }
|
|
|
435 memcpy ((*data_ret) + offset, tmp_data, tmp_size_bytes);
|
|
|
436 offset += tmp_size_bytes;
|
|
|
437 xfree (tmp_data);
|
|
|
438 }
|
|
|
439 }
|
|
|
440
|
|
|
441
|
|
|
442 static Lisp_Object
|
|
|
443 gtk_get_window_property_as_lisp_data (struct device *d,
|
|
|
444 GtkWidget *window,
|
|
|
445 GdkAtom property,
|
|
|
446 /* next two for error messages only */
|
|
|
447 Lisp_Object target_type,
|
|
|
448 GdkAtom selection_atom)
|
|
|
449 {
|
|
|
450 /* This function can GC */
|
|
|
451 Atom actual_type;
|
|
|
452 int actual_format;
|
|
|
453 unsigned long actual_size;
|
|
|
454 Extbyte *data = NULL;
|
|
|
455 int bytes = 0;
|
|
|
456 Lisp_Object val;
|
|
|
457 struct device *d = get_device_from_display (display);
|
|
|
458
|
|
|
459 x_get_window_property (display, window, property, &data, &bytes,
|
|
|
460 &actual_type, &actual_format, &actual_size, 1);
|
|
|
461 if (! data)
|
|
|
462 {
|
|
|
463 if (XGetSelectionOwner (display, selection_atom))
|
|
|
464 /* there is a selection owner */
|
|
563
|
465 signal_error (Qselection_conversion_error,
|
|
|
466 "selection owner couldn't convert",
|
|
|
467 Fcons (Qunbound,
|
|
|
468 Fcons (x_atom_to_symbol (d, selection_atom),
|
|
|
469 actual_type ?
|
|
|
470 list2 (target_type,
|
|
|
471 x_atom_to_symbol (d, actual_type)) :
|
|
|
472 list1 (target_type))));
|
|
462
|
473 else
|
|
563
|
474 signal_error (Qselection_conversion_error,
|
|
|
475 "no selection",
|
|
|
476 x_atom_to_symbol (d, selection_atom));
|
|
462
|
477 }
|
|
|
478
|
|
|
479 if (actual_type == DEVICE_XATOM_INCR (d))
|
|
|
480 {
|
|
|
481 /* Ok, that data wasn't *the* data, it was just the beginning. */
|
|
|
482
|
|
|
483 unsigned int min_size_bytes = * ((unsigned int *) data);
|
|
|
484 xfree (data);
|
|
|
485 receive_incremental_selection (display, window, property, target_type,
|
|
|
486 min_size_bytes, &data, &bytes,
|
|
|
487 &actual_type, &actual_format,
|
|
|
488 &actual_size);
|
|
|
489 }
|
|
|
490
|
|
|
491 /* It's been read. Now convert it to a lisp object in some semi-rational
|
|
|
492 manner. */
|
|
|
493 val = selection_data_to_lisp_data (d, data, bytes,
|
|
|
494 actual_type, actual_format);
|
|
|
495
|
|
|
496 xfree (data);
|
|
|
497 return val;
|
|
|
498 }
|
|
|
499 #endif
|
|
|
500
|
|
|
501
|
|
|
502 static GdkAtom
|
|
|
503 symbol_to_gtk_atom (struct device *d, Lisp_Object sym, int only_if_exists)
|
|
|
504 {
|
|
|
505 if (NILP (sym)) return GDK_SELECTION_PRIMARY;
|
|
|
506 if (EQ (sym, Qt)) return GDK_SELECTION_SECONDARY;
|
|
|
507 if (EQ (sym, QPRIMARY)) return GDK_SELECTION_PRIMARY;
|
|
|
508 if (EQ (sym, QSECONDARY)) return GDK_SELECTION_SECONDARY;
|
|
|
509
|
|
|
510 {
|
|
|
511 const char *nameext;
|
|
|
512 LISP_STRING_TO_EXTERNAL (Fsymbol_name (sym), nameext, Qctext);
|
|
|
513 return gdk_atom_intern (nameext, only_if_exists ? TRUE : FALSE);
|
|
|
514 }
|
|
|
515 }
|
|
|
516
|
|
|
517 static Lisp_Object
|
|
|
518 atom_to_symbol (struct device *d, GdkAtom atom)
|
|
|
519 {
|
|
|
520 if (atom == GDK_SELECTION_PRIMARY) return (QPRIMARY);
|
|
|
521 if (atom == GDK_SELECTION_SECONDARY) return (QSECONDARY);
|
|
|
522
|
|
|
523 {
|
|
|
524 char *intstr;
|
|
|
525 char *str = gdk_atom_name (atom);
|
|
|
526
|
|
|
527 if (! str) return Qnil;
|
|
|
528
|
|
|
529 TO_INTERNAL_FORMAT (C_STRING, str,
|
|
|
530 C_STRING_ALLOCA, intstr,
|
|
|
531 Qctext);
|
|
|
532 g_free (str);
|
|
|
533 return intern (intstr);
|
|
|
534 }
|
|
|
535 }
|
|
|
536
|
|
|
537 /* #### These are going to move into Lisp code(!) with the aid of
|
|
|
538 some new functions I'm working on - ajh */
|
|
|
539
|
|
|
540 /* These functions convert from the selection data read from the server into
|
|
|
541 something that we can use from elisp, and vice versa.
|
|
|
542
|
|
|
543 Type: Format: Size: Elisp Type:
|
|
|
544 ----- ------- ----- -----------
|
|
|
545 * 8 * String
|
|
|
546 ATOM 32 1 Symbol
|
|
|
547 ATOM 32 > 1 Vector of Symbols
|
|
|
548 * 16 1 Integer
|
|
|
549 * 16 > 1 Vector of Integers
|
|
|
550 * 32 1 if <=16 bits: Integer
|
|
|
551 if > 16 bits: Cons of top16, bot16
|
|
|
552 * 32 > 1 Vector of the above
|
|
|
553
|
|
|
554 When converting a Lisp number to C, it is assumed to be of format 16 if
|
|
|
555 it is an integer, and of format 32 if it is a cons of two integers.
|
|
|
556
|
|
|
557 When converting a vector of numbers from Elisp to C, it is assumed to be
|
|
|
558 of format 16 if every element in the vector is an integer, and is assumed
|
|
|
559 to be of format 32 if any element is a cons of two integers.
|
|
|
560
|
|
|
561 When converting an object to C, it may be of the form (SYMBOL . <data>)
|
|
|
562 where SYMBOL is what we should claim that the type is. Format and
|
|
|
563 representation are as above.
|
|
|
564
|
|
|
565 NOTE: Under Mule, when someone shoves us a string without a type, we
|
|
|
566 set the type to 'COMPOUND_TEXT and automatically convert to Compound
|
|
|
567 Text. If the string has a type, we assume that the user wants the
|
|
|
568 data sent as-is so we just do "binary" conversion.
|
|
|
569 */
|
|
|
570
|
|
|
571
|
|
|
572 static Lisp_Object
|
|
|
573 selection_data_to_lisp_data (struct device *d,
|
|
|
574 Extbyte *data,
|
|
|
575 size_t size,
|
|
|
576 GdkAtom type,
|
|
|
577 int format)
|
|
|
578 {
|
|
|
579 if (type == gdk_atom_intern ("NULL", 0))
|
|
|
580 return QNULL;
|
|
|
581
|
|
|
582 /* Convert any 8-bit data to a string, for compactness. */
|
|
|
583 else if (format == 8)
|
|
|
584 return make_ext_string (data, size,
|
|
|
585 ((type == gdk_atom_intern ("TEXT", FALSE)) ||
|
|
|
586 (type == gdk_atom_intern ("COMPOUND_TEXT", FALSE)))
|
|
|
587 ? Qctext : Qbinary);
|
|
|
588
|
|
|
589 /* Convert a single atom to a Lisp Symbol.
|
|
|
590 Convert a set of atoms to a vector of symbols. */
|
|
|
591 else if (type == gdk_atom_intern ("ATOM", FALSE))
|
|
|
592 {
|
|
|
593 if (size == sizeof (GdkAtom))
|
|
|
594 return atom_to_symbol (d, *((GdkAtom *) data));
|
|
|
595 else
|
|
|
596 {
|
|
|
597 int i;
|
|
|
598 int len = size / sizeof (GdkAtom);
|
|
|
599 Lisp_Object v = Fmake_vector (make_int (len), Qzero);
|
|
|
600 for (i = 0; i < len; i++)
|
|
|
601 Faset (v, make_int (i), atom_to_symbol (d, ((GdkAtom *) data) [i]));
|
|
|
602 return v;
|
|
|
603 }
|
|
|
604 }
|
|
|
605
|
|
|
606 /* Convert a single 16 or small 32 bit number to a Lisp Int.
|
|
|
607 If the number is > 16 bits, convert it to a cons of integers,
|
|
|
608 16 bits in each half.
|
|
|
609 */
|
|
|
610 else if (format == 32 && size == sizeof (long))
|
|
|
611 return word_to_lisp (((unsigned long *) data) [0]);
|
|
|
612 else if (format == 16 && size == sizeof (short))
|
|
|
613 return make_int ((int) (((unsigned short *) data) [0]));
|
|
|
614
|
|
|
615 /* Convert any other kind of data to a vector of numbers, represented
|
|
|
616 as above (as an integer, or a cons of two 16 bit integers).
|
|
|
617
|
|
|
618 #### Perhaps we should return the actual type to lisp as well.
|
|
|
619
|
|
|
620 (x-get-selection-internal 'PRIMARY 'LINE_NUMBER)
|
|
|
621 ==> [4 4]
|
|
|
622
|
|
|
623 and perhaps it should be
|
|
|
624
|
|
|
625 (x-get-selection-internal 'PRIMARY 'LINE_NUMBER)
|
|
|
626 ==> (SPAN . [4 4])
|
|
|
627
|
|
|
628 Right now the fact that the return type was SPAN is discarded before
|
|
|
629 lisp code gets to see it.
|
|
|
630 */
|
|
|
631 else if (format == 16)
|
|
|
632 {
|
|
|
633 int i;
|
|
|
634 Lisp_Object v = make_vector (size / 4, Qzero);
|
|
|
635 for (i = 0; i < (int) size / 4; i++)
|
|
|
636 {
|
|
|
637 int j = (int) ((unsigned short *) data) [i];
|
|
|
638 Faset (v, make_int (i), make_int (j));
|
|
|
639 }
|
|
|
640 return v;
|
|
|
641 }
|
|
|
642 else
|
|
|
643 {
|
|
|
644 int i;
|
|
|
645 Lisp_Object v = make_vector (size / 4, Qzero);
|
|
|
646 for (i = 0; i < (int) size / 4; i++)
|
|
|
647 {
|
|
|
648 unsigned long j = ((unsigned long *) data) [i];
|
|
|
649 Faset (v, make_int (i), word_to_lisp (j));
|
|
|
650 }
|
|
|
651 return v;
|
|
|
652 }
|
|
|
653 }
|
|
|
654
|
|
|
655
|
|
|
656 static void
|
|
|
657 lisp_data_to_selection_data (struct device *d,
|
|
|
658 Lisp_Object obj,
|
|
|
659 unsigned char **data_ret,
|
|
|
660 GdkAtom *type_ret,
|
|
|
661 unsigned int *size_ret,
|
|
|
662 int *format_ret)
|
|
|
663 {
|
|
|
664 Lisp_Object type = Qnil;
|
|
|
665
|
|
|
666 if (CONSP (obj) && SYMBOLP (XCAR (obj)))
|
|
|
667 {
|
|
|
668 type = XCAR (obj);
|
|
|
669 obj = XCDR (obj);
|
|
|
670 if (CONSP (obj) && NILP (XCDR (obj)))
|
|
|
671 obj = XCAR (obj);
|
|
|
672 }
|
|
|
673
|
|
|
674 if (EQ (obj, QNULL) || (EQ (type, QNULL)))
|
|
|
675 { /* This is not the same as declining */
|
|
|
676 *format_ret = 32;
|
|
|
677 *size_ret = 0;
|
|
|
678 *data_ret = 0;
|
|
|
679 type = QNULL;
|
|
|
680 }
|
|
|
681 else if (STRINGP (obj))
|
|
|
682 {
|
|
|
683 const Extbyte *extval;
|
|
|
684 Extcount extvallen;
|
|
|
685
|
|
|
686 TO_EXTERNAL_FORMAT (LISP_STRING, obj,
|
|
|
687 ALLOCA, (extval, extvallen),
|
|
|
688 (NILP (type) ? Qctext : Qbinary));
|
|
|
689 *format_ret = 8;
|
|
|
690 *size_ret = extvallen;
|
|
|
691 *data_ret = (unsigned char *) xmalloc (*size_ret);
|
|
|
692 memcpy (*data_ret, extval, *size_ret);
|
|
|
693 #ifdef MULE
|
|
|
694 if (NILP (type)) type = QCOMPOUND_TEXT;
|
|
|
695 #else
|
|
|
696 if (NILP (type)) type = QSTRING;
|
|
|
697 #endif
|
|
|
698 }
|
|
|
699 else if (CHARP (obj))
|
|
|
700 {
|
|
|
701 Bufbyte buf[MAX_EMCHAR_LEN];
|
|
|
702 Bytecount len;
|
|
|
703 const Extbyte *extval;
|
|
|
704 Extcount extvallen;
|
|
|
705
|
|
|
706 *format_ret = 8;
|
|
|
707 len = set_charptr_emchar (buf, XCHAR (obj));
|
|
|
708 TO_EXTERNAL_FORMAT (DATA, (buf, len),
|
|
|
709 ALLOCA, (extval, extvallen),
|
|
|
710 Qctext);
|
|
|
711 *size_ret = extvallen;
|
|
|
712 *data_ret = (unsigned char *) xmalloc (*size_ret);
|
|
|
713 memcpy (*data_ret, extval, *size_ret);
|
|
|
714 #ifdef MULE
|
|
|
715 if (NILP (type)) type = QCOMPOUND_TEXT;
|
|
|
716 #else
|
|
|
717 if (NILP (type)) type = QSTRING;
|
|
|
718 #endif
|
|
|
719 }
|
|
|
720 else if (SYMBOLP (obj))
|
|
|
721 {
|
|
|
722 *format_ret = 32;
|
|
|
723 *size_ret = 1;
|
|
|
724 *data_ret = (unsigned char *) xmalloc (sizeof (GdkAtom) + 1);
|
|
|
725 (*data_ret) [sizeof (GdkAtom)] = 0;
|
|
|
726 (*(GdkAtom **) data_ret) [0] = symbol_to_gtk_atom (d, obj, 0);
|
|
|
727 if (NILP (type)) type = QATOM;
|
|
|
728 }
|
|
|
729 else if (INTP (obj) &&
|
|
|
730 XINT (obj) <= 0x7FFF &&
|
|
|
731 XINT (obj) >= -0x8000)
|
|
|
732 {
|
|
|
733 *format_ret = 16;
|
|
|
734 *size_ret = 1;
|
|
|
735 *data_ret = (unsigned char *) xmalloc (sizeof (short) + 1);
|
|
|
736 (*data_ret) [sizeof (short)] = 0;
|
|
|
737 (*(short **) data_ret) [0] = (short) XINT (obj);
|
|
|
738 if (NILP (type)) type = QINTEGER;
|
|
|
739 }
|
|
|
740 else if (INTP (obj) || CONSP (obj))
|
|
|
741 {
|
|
|
742 *format_ret = 32;
|
|
|
743 *size_ret = 1;
|
|
|
744 *data_ret = (unsigned char *) xmalloc (sizeof (long) + 1);
|
|
|
745 (*data_ret) [sizeof (long)] = 0;
|
|
|
746 (*(unsigned long **) data_ret) [0] = lisp_to_word (obj);
|
|
|
747 if (NILP (type)) type = QINTEGER;
|
|
|
748 }
|
|
|
749 else if (VECTORP (obj))
|
|
|
750 {
|
|
|
751 /* Lisp Vectors may represent a set of ATOMs;
|
|
|
752 a set of 16 or 32 bit INTEGERs;
|
|
|
753 or a set of ATOM_PAIRs (represented as [[A1 A2] [A3 A4] ...]
|
|
|
754 */
|
|
|
755 int i;
|
|
|
756
|
|
|
757 if (SYMBOLP (XVECTOR_DATA (obj) [0]))
|
|
|
758 /* This vector is an ATOM set */
|
|
|
759 {
|
|
|
760 if (NILP (type)) type = QATOM;
|
|
|
761 *size_ret = XVECTOR_LENGTH (obj);
|
|
|
762 *format_ret = 32;
|
|
|
763 *data_ret = (unsigned char *) xmalloc ((*size_ret) * sizeof (GdkAtom));
|
|
|
764 for (i = 0; i < (int) (*size_ret); i++)
|
|
|
765 if (SYMBOLP (XVECTOR_DATA (obj) [i]))
|
|
|
766 (*(GdkAtom **) data_ret) [i] =
|
|
|
767 symbol_to_gtk_atom (d, XVECTOR_DATA (obj) [i], 0);
|
|
|
768 else
|
|
563
|
769 syntax_error
|
|
|
770 ("all elements of the vector must be of the same type", obj);
|
|
462
|
771 }
|
|
|
772 #if 0 /* #### MULTIPLE doesn't work yet */
|
|
|
773 else if (VECTORP (XVECTOR_DATA (obj) [0]))
|
|
|
774 /* This vector is an ATOM_PAIR set */
|
|
|
775 {
|
|
|
776 if (NILP (type)) type = QATOM_PAIR;
|
|
|
777 *size_ret = XVECTOR_LENGTH (obj);
|
|
|
778 *format_ret = 32;
|
|
|
779 *data_ret = (unsigned char *)
|
|
|
780 xmalloc ((*size_ret) * sizeof (Atom) * 2);
|
|
|
781 for (i = 0; i < *size_ret; i++)
|
|
|
782 if (VECTORP (XVECTOR_DATA (obj) [i]))
|
|
|
783 {
|
|
|
784 Lisp_Object pair = XVECTOR_DATA (obj) [i];
|
|
|
785 if (XVECTOR_LENGTH (pair) != 2)
|
|
563
|
786 syntax_error
|
|
|
787 ("elements of the vector must be vectors of exactly two elements", pair);
|
|
462
|
788
|
|
|
789 (*(GdkAtom **) data_ret) [i * 2] =
|
|
|
790 symbol_to_gtk_atom (d, XVECTOR_DATA (pair) [0], 0);
|
|
|
791 (*(GdkAtom **) data_ret) [(i * 2) + 1] =
|
|
|
792 symbol_to_gtk_atom (d, XVECTOR_DATA (pair) [1], 0);
|
|
|
793 }
|
|
|
794 else
|
|
563
|
795 syntax_error
|
|
|
796 ("all elements of the vector must be of the same type", obj);
|
|
462
|
797 }
|
|
|
798 #endif
|
|
|
799 else
|
|
|
800 /* This vector is an INTEGER set, or something like it */
|
|
|
801 {
|
|
|
802 *size_ret = XVECTOR_LENGTH (obj);
|
|
|
803 if (NILP (type)) type = QINTEGER;
|
|
|
804 *format_ret = 16;
|
|
|
805 for (i = 0; i < (int) (*size_ret); i++)
|
|
|
806 if (CONSP (XVECTOR_DATA (obj) [i]))
|
|
|
807 *format_ret = 32;
|
|
|
808 else if (!INTP (XVECTOR_DATA (obj) [i]))
|
|
563
|
809 syntax_error
|
|
|
810 ("all elements of the vector must be integers or conses of integers", obj);
|
|
462
|
811
|
|
|
812 *data_ret = (unsigned char *) xmalloc (*size_ret * (*format_ret/8));
|
|
|
813 for (i = 0; i < (int) (*size_ret); i++)
|
|
|
814 if (*format_ret == 32)
|
|
|
815 (*((unsigned long **) data_ret)) [i] =
|
|
|
816 lisp_to_word (XVECTOR_DATA (obj) [i]);
|
|
|
817 else
|
|
|
818 (*((unsigned short **) data_ret)) [i] =
|
|
|
819 (unsigned short) lisp_to_word (XVECTOR_DATA (obj) [i]);
|
|
|
820 }
|
|
|
821 }
|
|
|
822 else
|
|
563
|
823 invalid_argument ("unrecognized selection data", obj);
|
|
462
|
824
|
|
|
825 *type_ret = symbol_to_gtk_atom (d, type, 0);
|
|
|
826 }
|
|
|
827
|
|
|
828
|
|
|
829
|
|
|
830 static Lisp_Object
|
|
|
831 gtk_own_selection (Lisp_Object selection_name, Lisp_Object selection_value,
|
|
|
832 Lisp_Object how_to_add, Lisp_Object selection_type)
|
|
|
833 {
|
|
|
834 struct device *d = decode_gtk_device (Qnil);
|
|
|
835 GtkWidget *selecting_window = GTK_WIDGET (DEVICE_GTK_APP_SHELL (d));
|
|
|
836 Lisp_Object selection_time;
|
|
|
837 /* Use the time of the last-read mouse or keyboard event.
|
|
|
838 For selection purposes, we use this as a sleazy way of knowing what the
|
|
|
839 current time is in server-time. This assumes that the most recently read
|
|
|
840 mouse or keyboard event has something to do with the assertion of the
|
|
|
841 selection, which is probably true.
|
|
|
842 */
|
|
|
843 guint32 thyme = DEVICE_GTK_MOUSE_TIMESTAMP (d);
|
|
|
844 GdkAtom selection_atom;
|
|
|
845
|
|
|
846 CHECK_SYMBOL (selection_name);
|
|
|
847 selection_atom = symbol_to_gtk_atom (d, selection_name, 0);
|
|
|
848
|
|
|
849 gtk_selection_owner_set (selecting_window,
|
|
|
850 selection_atom,
|
|
|
851 thyme);
|
|
|
852
|
|
|
853 /* We do NOT use time_to_lisp() here any more, like we used to.
|
|
|
854 That assumed equivalence of time_t and Time, which is not
|
|
|
855 necessarily the case (e.g. under OSF on the Alphas, where
|
|
|
856 Time is a 64-bit quantity and time_t is a 32-bit quantity).
|
|
|
857
|
|
|
858 Opaque pointers are the clean way to go here.
|
|
|
859 */
|
|
|
860 selection_time = make_opaque (&thyme, sizeof (thyme));
|
|
|
861
|
|
|
862 return selection_time;
|
|
|
863 }
|
|
|
864
|
|
|
865 static void
|
|
|
866 gtk_disown_selection (Lisp_Object selection, Lisp_Object timeval)
|
|
|
867 {
|
|
|
868 struct device *d = decode_gtk_device (Qnil);
|
|
|
869 GdkAtom selection_atom;
|
|
|
870 guint32 timestamp;
|
|
|
871
|
|
|
872 CHECK_SYMBOL (selection);
|
|
|
873 selection_atom = symbol_to_gtk_atom (d, selection, 0);
|
|
|
874
|
|
|
875 if (NILP (timeval))
|
|
|
876 timestamp = DEVICE_GTK_MOUSE_TIMESTAMP (d);
|
|
|
877 else
|
|
|
878 {
|
|
|
879 time_t the_time;
|
|
|
880 lisp_to_time (timeval, &the_time);
|
|
|
881 timestamp = (guint32) the_time;
|
|
|
882 }
|
|
|
883
|
|
|
884 gtk_selection_owner_set (NULL, selection_atom, timestamp);
|
|
|
885 }
|
|
|
886
|
|
|
887 static Lisp_Object
|
|
|
888 gtk_selection_exists_p (Lisp_Object selection,
|
|
|
889 Lisp_Object selection_type)
|
|
|
890 {
|
|
|
891 struct device *d = decode_gtk_device (Qnil);
|
|
|
892
|
|
|
893 return (gdk_selection_owner_get (symbol_to_gtk_atom (d, selection, 0)) ? Qt : Qnil);
|
|
|
894 }
|
|
|
895
|
|
|
896
|
|
|
897
|
|
|
898 /************************************************************************/
|
|
|
899 /* initialization */
|
|
|
900 /************************************************************************/
|
|
|
901
|
|
|
902 void
|
|
|
903 syms_of_select_gtk (void)
|
|
|
904 {
|
|
|
905 }
|
|
|
906
|
|
|
907 void
|
|
|
908 console_type_create_select_gtk (void)
|
|
|
909 {
|
|
|
910 CONSOLE_HAS_METHOD (gtk, own_selection);
|
|
|
911 CONSOLE_HAS_METHOD (gtk, disown_selection);
|
|
|
912 CONSOLE_HAS_METHOD (gtk, selection_exists_p);
|
|
|
913 CONSOLE_HAS_METHOD (gtk, get_foreign_selection);
|
|
|
914 }
|
|
|
915
|
|
|
916 void
|
|
|
917 vars_of_select_gtk (void)
|
|
|
918 {
|
|
|
919 staticpro (&Vretrieved_selection);
|
|
|
920 Vretrieved_selection = Qnil;
|
|
|
921
|
|
|
922 DEFVAR_LISP ("gtk-sent-selection-hooks", &Vgtk_sent_selection_hooks /*
|
|
|
923 A function or functions to be called after we have responded to some
|
|
|
924 other client's request for the value of a selection that we own. The
|
|
|
925 function(s) will be called with four arguments:
|
|
|
926 - the name of the selection (typically PRIMARY, SECONDARY, or CLIPBOARD);
|
|
|
927 - the name of the selection-type which we were requested to convert the
|
|
|
928 selection into before sending (for example, STRING or LENGTH);
|
|
|
929 - and whether we successfully transmitted the selection.
|
|
|
930 We might have failed (and declined the request) for any number of reasons,
|
|
|
931 including being asked for a selection that we no longer own, or being asked
|
|
|
932 to convert into a type that we don't know about or that is inappropriate.
|
|
|
933 This hook doesn't let you change the behavior of emacs's selection replies,
|
|
|
934 it merely informs you that they have happened.
|
|
|
935 */ );
|
|
|
936 Vgtk_sent_selection_hooks = Qunbound;
|
|
|
937 }
|
