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414
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1 /* X 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 /* Rewritten by jwz */
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24
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25 #include <config.h>
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26 #include "lisp.h"
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27
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28 #include "buffer.h"
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29 #include "console-x.h"
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30 #include "objects-x.h"
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31
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32 #include "frame.h"
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33 #include "opaque.h"
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34 #include "systime.h"
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35 #include "select.h"
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36
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37 int lisp_to_time (Lisp_Object, time_t *);
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38 Lisp_Object time_to_lisp (time_t);
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39
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40 #ifdef LWLIB_USES_MOTIF
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41 # define MOTIF_CLIPBOARDS
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42 #endif
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43
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44 #ifdef MOTIF_CLIPBOARDS
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45 # include <Xm/CutPaste.h>
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46 static void hack_motif_clipboard_selection (Atom selection_atom,
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47 Lisp_Object selection_value,
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48 Time thyme, Display *display,
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49 Window selecting_window);
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50 #endif
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51
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52 #define CUT_BUFFER_SUPPORT
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53
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54 #ifdef CUT_BUFFER_SUPPORT
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55 Lisp_Object QCUT_BUFFER0, QCUT_BUFFER1, QCUT_BUFFER2, QCUT_BUFFER3,
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56 QCUT_BUFFER4, QCUT_BUFFER5, QCUT_BUFFER6, QCUT_BUFFER7;
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57 #endif
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58
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59 Lisp_Object Vx_sent_selection_hooks;
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60
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61 /* If this is a smaller number than the max-request-size of the display,
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62 emacs will use INCR selection transfer when the selection is larger
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63 than this. The max-request-size is usually around 64k, so if you want
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64 emacs to use incremental selection transfers when the selection is
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65 smaller than that, set this. I added this mostly for debugging the
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66 incremental transfer stuff, but it might improve server performance.
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67 */
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68 #define MAX_SELECTION_QUANTUM 0xFFFFFF
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69
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70 #define SELECTION_QUANTUM(dpy) ((XMaxRequestSize (dpy) << 2) - 100)
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71
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72 /* If the selection owner takes too long to reply to a selection request,
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73 we give up on it. This is in seconds (0 = no timeout).
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74 */
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75 int x_selection_timeout;
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76
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77
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78 /* Utility functions */
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79
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80 static void lisp_data_to_selection_data (struct device *,
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81 Lisp_Object obj,
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82 unsigned char **data_ret,
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83 Atom *type_ret,
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84 unsigned int *size_ret,
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85 int *format_ret);
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86 static Lisp_Object selection_data_to_lisp_data (struct device *,
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87 unsigned char *data,
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88 size_t size,
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89 Atom type,
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90 int format);
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91 static Lisp_Object x_get_window_property_as_lisp_data (Display *,
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92 Window,
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93 Atom property,
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94 Lisp_Object target_type,
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95 Atom selection_atom);
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96
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97 static int expect_property_change (Display *, Window, Atom prop, int state);
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98 static void wait_for_property_change (long);
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99 static void unexpect_property_change (int);
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100 static int waiting_for_other_props_on_window (Display *, Window);
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101
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102 /* This converts a Lisp symbol to a server Atom, avoiding a server
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103 roundtrip whenever possible.
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104 */
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105 static Atom
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106 symbol_to_x_atom (struct device *d, Lisp_Object sym, int only_if_exists)
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107 {
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108 Display *display = DEVICE_X_DISPLAY (d);
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109
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110 if (NILP (sym)) return XA_PRIMARY;
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111 if (EQ (sym, Qt)) return XA_SECONDARY;
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112 if (EQ (sym, QPRIMARY)) return XA_PRIMARY;
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113 if (EQ (sym, QSECONDARY)) return XA_SECONDARY;
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114 if (EQ (sym, QSTRING)) return XA_STRING;
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115 if (EQ (sym, QINTEGER)) return XA_INTEGER;
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116 if (EQ (sym, QATOM)) return XA_ATOM;
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117 if (EQ (sym, QCLIPBOARD)) return DEVICE_XATOM_CLIPBOARD (d);
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118 if (EQ (sym, QTIMESTAMP)) return DEVICE_XATOM_TIMESTAMP (d);
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119 if (EQ (sym, QTEXT)) return DEVICE_XATOM_TEXT (d);
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120 if (EQ (sym, QDELETE)) return DEVICE_XATOM_DELETE (d);
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121 if (EQ (sym, QMULTIPLE)) return DEVICE_XATOM_MULTIPLE (d);
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122 if (EQ (sym, QINCR)) return DEVICE_XATOM_INCR (d);
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123 if (EQ (sym, QEMACS_TMP)) return DEVICE_XATOM_EMACS_TMP (d);
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124 if (EQ (sym, QTARGETS)) return DEVICE_XATOM_TARGETS (d);
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125 if (EQ (sym, QNULL)) return DEVICE_XATOM_NULL (d);
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126 if (EQ (sym, QATOM_PAIR)) return DEVICE_XATOM_ATOM_PAIR (d);
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127 if (EQ (sym, QCOMPOUND_TEXT)) return DEVICE_XATOM_COMPOUND_TEXT (d);
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128
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129 #ifdef CUT_BUFFER_SUPPORT
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130 if (EQ (sym, QCUT_BUFFER0)) return XA_CUT_BUFFER0;
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131 if (EQ (sym, QCUT_BUFFER1)) return XA_CUT_BUFFER1;
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132 if (EQ (sym, QCUT_BUFFER2)) return XA_CUT_BUFFER2;
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133 if (EQ (sym, QCUT_BUFFER3)) return XA_CUT_BUFFER3;
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134 if (EQ (sym, QCUT_BUFFER4)) return XA_CUT_BUFFER4;
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135 if (EQ (sym, QCUT_BUFFER5)) return XA_CUT_BUFFER5;
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136 if (EQ (sym, QCUT_BUFFER6)) return XA_CUT_BUFFER6;
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137 if (EQ (sym, QCUT_BUFFER7)) return XA_CUT_BUFFER7;
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138 #endif /* CUT_BUFFER_SUPPORT */
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139
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140 {
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141 CONST char *nameext;
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142 GET_C_STRING_CTEXT_DATA_ALLOCA (Fsymbol_name (sym), nameext);
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143 return XInternAtom (display, nameext, only_if_exists ? True : False);
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144 }
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145 }
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146
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147
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148 /* This converts a server Atom to a Lisp symbol, avoiding server roundtrips
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149 and calls to intern whenever possible.
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150 */
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151 static Lisp_Object
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152 x_atom_to_symbol (struct device *d, Atom atom)
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153 {
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154 Display *display = DEVICE_X_DISPLAY (d);
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155
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156 if (! atom) return Qnil;
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157 if (atom == XA_PRIMARY) return QPRIMARY;
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158 if (atom == XA_SECONDARY) return QSECONDARY;
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159 if (atom == XA_STRING) return QSTRING;
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160 if (atom == XA_INTEGER) return QINTEGER;
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161 if (atom == XA_ATOM) return QATOM;
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162 if (atom == DEVICE_XATOM_CLIPBOARD (d)) return QCLIPBOARD;
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163 if (atom == DEVICE_XATOM_TIMESTAMP (d)) return QTIMESTAMP;
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164 if (atom == DEVICE_XATOM_TEXT (d)) return QTEXT;
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165 if (atom == DEVICE_XATOM_DELETE (d)) return QDELETE;
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166 if (atom == DEVICE_XATOM_MULTIPLE (d)) return QMULTIPLE;
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167 if (atom == DEVICE_XATOM_INCR (d)) return QINCR;
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168 if (atom == DEVICE_XATOM_EMACS_TMP (d)) return QEMACS_TMP;
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169 if (atom == DEVICE_XATOM_TARGETS (d)) return QTARGETS;
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170 if (atom == DEVICE_XATOM_NULL (d)) return QNULL;
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171 if (atom == DEVICE_XATOM_ATOM_PAIR (d)) return QATOM_PAIR;
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172 if (atom == DEVICE_XATOM_COMPOUND_TEXT (d)) return QCOMPOUND_TEXT;
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173
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174 #ifdef CUT_BUFFER_SUPPORT
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175 if (atom == XA_CUT_BUFFER0) return QCUT_BUFFER0;
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176 if (atom == XA_CUT_BUFFER1) return QCUT_BUFFER1;
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177 if (atom == XA_CUT_BUFFER2) return QCUT_BUFFER2;
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178 if (atom == XA_CUT_BUFFER3) return QCUT_BUFFER3;
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179 if (atom == XA_CUT_BUFFER4) return QCUT_BUFFER4;
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180 if (atom == XA_CUT_BUFFER5) return QCUT_BUFFER5;
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181 if (atom == XA_CUT_BUFFER6) return QCUT_BUFFER6;
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182 if (atom == XA_CUT_BUFFER7) return QCUT_BUFFER7;
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183 #endif
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184
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185 {
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186 Lisp_Object newsym;
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187 CONST Bufbyte *intstr;
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188 char *str = XGetAtomName (display, atom);
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189
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190 if (! str) return Qnil;
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191
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192 GET_C_CHARPTR_INT_CTEXT_DATA_ALLOCA (str, intstr);
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193 newsym = intern ((char *) intstr);
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194 XFree (str);
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195 return newsym;
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196 }
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197 }
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198
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199
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200 /* Do protocol to assert ourself as a selection owner.
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201 Update the Vselection_alist so that we can reply to later requests for
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202 our selection.
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203 */
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204 static Lisp_Object
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205 x_own_selection (Lisp_Object selection_name, Lisp_Object selection_value)
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206 {
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207 struct device *d = decode_x_device (Qnil);
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208 Display *display = DEVICE_X_DISPLAY (d);
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209 struct frame *sel_frame = selected_frame ();
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210 Window selecting_window = XtWindow (FRAME_X_TEXT_WIDGET (sel_frame));
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211 Lisp_Object selection_time;
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212 /* Use the time of the last-read mouse or keyboard event.
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213 For selection purposes, we use this as a sleazy way of knowing what the
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214 current time is in server-time. This assumes that the most recently read
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215 mouse or keyboard event has something to do with the assertion of the
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216 selection, which is probably true.
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217 */
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218 Time thyme = DEVICE_X_MOUSE_TIMESTAMP (d);
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219 Atom selection_atom;
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220
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221 CHECK_SYMBOL (selection_name);
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222 selection_atom = symbol_to_x_atom (d, selection_name, 0);
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223
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224 XSetSelectionOwner (display, selection_atom, selecting_window, thyme);
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225
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226 /* We do NOT use time_to_lisp() here any more, like we used to.
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227 That assumed equivalence of time_t and Time, which is not
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228 necessarily the case (e.g. under OSF on the Alphas, where
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229 Time is a 64-bit quantity and time_t is a 32-bit quantity).
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230
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231 Opaque pointers are the clean way to go here.
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232 */
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233 selection_time = make_opaque (sizeof (thyme), (void *) &thyme);
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234
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235 #ifdef MOTIF_CLIPBOARDS
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236 hack_motif_clipboard_selection (selection_atom, selection_value,
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237 thyme, display, selecting_window);
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238 #endif
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239 return selection_time;
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240 }
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241
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242 #ifdef MOTIF_CLIPBOARDS /* Bend over baby. Take it and like it. */
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243
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244 # ifdef MOTIF_INCREMENTAL_CLIPBOARDS_WORK
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245 static void motif_clipboard_cb ();
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246 # endif
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247
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248 static void
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249 hack_motif_clipboard_selection (Atom selection_atom,
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250 Lisp_Object selection_value,
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251 Time thyme,
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252 Display *display,
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253 Window selecting_window)
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254 /* Bool owned_p)*/
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255 {
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256 struct device *d = get_device_from_display (display);
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257 /* Those Motif wankers can't be bothered to follow the ICCCM, and do
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258 their own non-Xlib non-Xt clipboard processing. So we have to do
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259 this so that linked-in Motif widgets don't get themselves wedged.
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260 */
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261 if (selection_atom == DEVICE_XATOM_CLIPBOARD (d)
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262 && STRINGP (selection_value)
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263
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264 /* If we already own the clipboard, don't own it again in the Motif
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265 way. This might lose in some subtle way, since the timestamp won't
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266 be current, but owning the selection on the Motif way does a
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267 SHITLOAD of X protocol, and it makes killing text be incredibly
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268 slow when using an X terminal. ARRRRGGGHHH!!!!
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269 */
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270 /* No, this is no good, because then Motif text fields don't bother
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271 to look up the new value, and you can't Copy from a buffer, Paste
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272 into a text field, then Copy something else from the buffer and
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273 paste it into the text field -- it pastes the first thing again. */
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274 /* && !owned_p */
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275 )
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276 {
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277 #ifdef MOTIF_INCREMENTAL_CLIPBOARDS_WORK
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278 Widget widget = FRAME_X_TEXT_WIDGET (selected_frame());
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279 #endif
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280 long itemid;
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281 #if XmVersion >= 1002
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282 long dataid;
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283 #else
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284 int dataid; /* 1.2 wants long, but 1.1.5 wants int... */
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285 #endif
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286 XmString fmh;
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287 String encoding = "STRING";
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288 CONST Extbyte *data = XSTRING_DATA (selection_value);
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289 Extcount bytes = XSTRING_LENGTH (selection_value);
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290
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291 #ifdef MULE
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292 {
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293 enum { ASCII, LATIN_1, WORLD } chartypes = ASCII;
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294 CONST Bufbyte *ptr = data, *end = ptr + bytes;
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295 /* Optimize for the common ASCII case */
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296 while (ptr <= end)
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297 {
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298 if (BYTE_ASCII_P (*ptr))
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299 {
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300 ptr++;
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301 continue;
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302 }
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303
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304 if ((*ptr) == LEADING_BYTE_LATIN_ISO8859_1 ||
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305 (*ptr) == LEADING_BYTE_CONTROL_1)
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306 {
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307 chartypes = LATIN_1;
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308 ptr += 2;
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309 continue;
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310 }
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311
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312 chartypes = WORLD;
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313 break;
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314 }
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315
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316 if (chartypes == LATIN_1)
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317 GET_STRING_BINARY_DATA_ALLOCA (selection_value, data, bytes);
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318 else if (chartypes == WORLD)
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319 {
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320 GET_STRING_CTEXT_DATA_ALLOCA (selection_value, data, bytes);
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321 encoding = "COMPOUND_TEXT";
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322 }
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323 }
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324 #endif /* MULE */
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325
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326 fmh = XmStringCreateLtoR ("Clipboard", XmSTRING_DEFAULT_CHARSET);
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327 while (ClipboardSuccess !=
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328 XmClipboardStartCopy (display, selecting_window, fmh, thyme,
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329 #ifdef MOTIF_INCREMENTAL_CLIPBOARDS_WORK
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330 widget, motif_clipboard_cb,
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331 #else
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332 0, NULL,
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333 #endif
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334 &itemid))
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335 ;
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336 XmStringFree (fmh);
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337 while (ClipboardSuccess !=
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338 XmClipboardCopy (display, selecting_window, itemid, encoding,
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339 #ifdef MOTIF_INCREMENTAL_CLIPBOARDS_WORK
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340 /* O'Reilly examples say size can be 0,
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341 but this clearly is not the case. */
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342 0, bytes, (int) selecting_window, /* private id */
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343 #else /* !MOTIF_INCREMENTAL_CLIPBOARDS_WORK */
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344 (XtPointer) data, bytes, 0,
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345 #endif /* !MOTIF_INCREMENTAL_CLIPBOARDS_WORK */
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346 &dataid))
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347 ;
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348 while (ClipboardSuccess !=
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349 XmClipboardEndCopy (display, selecting_window, itemid))
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350 ;
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351 }
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352 }
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353
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354 # ifdef MOTIF_INCREMENTAL_CLIPBOARDS_WORK
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355 /* I tried to treat the clipboard like a real selection, and not send
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356 the data until it was requested, but it looks like that just doesn't
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357 work at all unless the selection owner and requestor are in different
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358 processes. From reading the Motif source, it looks like they never
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359 even considered having two widgets in the same application transfer
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360 data between each other using "by-name" clipboard values. What a
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361 bunch of fuckups.
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362 */
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363 static void
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364 motif_clipboard_cb (Widget widget, int *data_id, int *private_id, int *reason)
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365 {
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366 switch (*reason)
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367 {
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368 case XmCR_CLIPBOARD_DATA_REQUEST:
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369 {
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370 Display *dpy = XtDisplay (widget);
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371 Window window = (Window) *private_id;
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372 Lisp_Object selection = assq_no_quit (QCLIPBOARD, Vselection_alist);
|
|
|
373 if (NILP (selection)) abort ();
|
|
|
374 selection = XCDR (selection);
|
|
|
375 if (!STRINGP (selection)) abort ();
|
|
|
376 XmClipboardCopyByName (dpy, window, *data_id,
|
|
|
377 (char *) XSTRING_DATA (selection),
|
|
|
378 XSTRING_LENGTH (selection) + 1,
|
|
|
379 0);
|
|
|
380 }
|
|
|
381 break;
|
|
|
382 case XmCR_CLIPBOARD_DATA_DELETE:
|
|
|
383 default:
|
|
|
384 /* don't need to free anything */
|
|
|
385 break;
|
|
|
386 }
|
|
|
387 }
|
|
|
388 # endif /* MOTIF_INCREMENTAL_CLIPBOARDS_WORK */
|
|
|
389 #endif /* MOTIF_CLIPBOARDS */
|
|
|
390
|
|
|
391
|
|
|
392
|
|
|
393
|
|
|
394 /* Send a SelectionNotify event to the requestor with property=None, meaning
|
|
|
395 we were unable to do what they wanted.
|
|
|
396 */
|
|
|
397 static void
|
|
|
398 x_decline_selection_request (XSelectionRequestEvent *event)
|
|
|
399 {
|
|
|
400 XSelectionEvent reply;
|
|
|
401 reply.type = SelectionNotify;
|
|
|
402 reply.display = event->display;
|
|
|
403 reply.requestor = event->requestor;
|
|
|
404 reply.selection = event->selection;
|
|
|
405 reply.time = event->time;
|
|
|
406 reply.target = event->target;
|
|
|
407 reply.property = None;
|
|
|
408
|
|
|
409 XSendEvent (reply.display, reply.requestor, False, 0L, (XEvent *) &reply);
|
|
|
410 XFlush (reply.display);
|
|
|
411 }
|
|
|
412
|
|
|
413
|
|
|
414 /* Used as an unwind-protect clause so that, if a selection-converter signals
|
|
|
415 an error, we tell the requestor that we were unable to do what they wanted
|
|
|
416 before we throw to top-level or go into the debugger or whatever.
|
|
|
417 */
|
|
|
418 static Lisp_Object
|
|
|
419 x_selection_request_lisp_error (Lisp_Object closure)
|
|
|
420 {
|
|
|
421 XSelectionRequestEvent *event = (XSelectionRequestEvent *)
|
|
|
422 get_opaque_ptr (closure);
|
|
|
423
|
|
|
424 free_opaque_ptr (closure);
|
|
|
425 if (event->type == 0) /* we set this to mean "completed normally" */
|
|
|
426 return Qnil;
|
|
|
427 x_decline_selection_request (event);
|
|
|
428 return Qnil;
|
|
|
429 }
|
|
|
430
|
|
|
431
|
|
|
432 /* Convert our selection to the requested type, and put that data where the
|
|
|
433 requestor wants it. Then tell them whether we've succeeded.
|
|
|
434 */
|
|
|
435 static void
|
|
|
436 x_reply_selection_request (XSelectionRequestEvent *event, int format,
|
|
|
437 unsigned char *data, int size, Atom type)
|
|
|
438 {
|
|
|
439 /* This function can GC */
|
|
|
440 XSelectionEvent reply;
|
|
|
441 Display *display = event->display;
|
|
|
442 struct device *d = get_device_from_display (display);
|
|
|
443 Window window = event->requestor;
|
|
|
444 int bytes_remaining;
|
|
|
445 int format_bytes = format/8;
|
|
|
446 int max_bytes = SELECTION_QUANTUM (display);
|
|
|
447 if (max_bytes > MAX_SELECTION_QUANTUM) max_bytes = MAX_SELECTION_QUANTUM;
|
|
|
448
|
|
|
449 reply.type = SelectionNotify;
|
|
|
450 reply.display = display;
|
|
|
451 reply.requestor = window;
|
|
|
452 reply.selection = event->selection;
|
|
|
453 reply.time = event->time;
|
|
|
454 reply.target = event->target;
|
|
|
455 reply.property = (event->property == None ? event->target : event->property);
|
|
|
456
|
|
|
457 /* #### XChangeProperty can generate BadAlloc, and we must handle it! */
|
|
|
458
|
|
|
459 /* Store the data on the requested property.
|
|
|
460 If the selection is large, only store the first N bytes of it.
|
|
|
461 */
|
|
|
462 bytes_remaining = size * format_bytes;
|
|
|
463 if (bytes_remaining <= max_bytes)
|
|
|
464 {
|
|
|
465 /* Send all the data at once, with minimal handshaking. */
|
|
|
466 #if 0
|
|
|
467 stderr_out ("\nStoring all %d\n", bytes_remaining);
|
|
|
468 #endif
|
|
|
469 XChangeProperty (display, window, reply.property, type, format,
|
|
|
470 PropModeReplace, data, size);
|
|
|
471 /* At this point, the selection was successfully stored; ack it. */
|
|
|
472 XSendEvent (display, window, False, 0L, (XEvent *) &reply);
|
|
|
473 XFlush (display);
|
|
|
474 }
|
|
|
475 else
|
|
|
476 {
|
|
|
477 /* Send an INCR selection. */
|
|
|
478 int prop_id;
|
|
|
479
|
|
|
480 if (x_window_to_frame (d, window)) /* #### debug */
|
|
|
481 error ("attempt to transfer an INCR to ourself!");
|
|
|
482 #if 0
|
|
|
483 stderr_out ("\nINCR %d\n", bytes_remaining);
|
|
|
484 #endif
|
|
|
485 prop_id = expect_property_change (display, window, reply.property,
|
|
|
486 PropertyDelete);
|
|
|
487
|
|
|
488 XChangeProperty (display, window, reply.property, DEVICE_XATOM_INCR (d),
|
|
|
489 32, PropModeReplace, (unsigned char *)
|
|
|
490 &bytes_remaining, 1);
|
|
|
491 XSelectInput (display, window, PropertyChangeMask);
|
|
|
492 /* Tell 'em the INCR data is there... */
|
|
|
493 XSendEvent (display, window, False, 0L, (XEvent *) &reply);
|
|
|
494 XFlush (display);
|
|
|
495
|
|
|
496 /* First, wait for the requestor to ack by deleting the property.
|
|
|
497 This can run random lisp code (process handlers) or signal.
|
|
|
498 */
|
|
|
499 wait_for_property_change (prop_id);
|
|
|
500
|
|
|
501 while (bytes_remaining)
|
|
|
502 {
|
|
|
503 int i = ((bytes_remaining < max_bytes)
|
|
|
504 ? bytes_remaining
|
|
|
505 : max_bytes);
|
|
|
506 prop_id = expect_property_change (display, window, reply.property,
|
|
|
507 PropertyDelete);
|
|
|
508 #if 0
|
|
|
509 stderr_out (" INCR adding %d\n", i);
|
|
|
510 #endif
|
|
|
511 /* Append the next chunk of data to the property. */
|
|
|
512 XChangeProperty (display, window, reply.property, type, format,
|
|
|
513 PropModeAppend, data, i / format_bytes);
|
|
|
514 bytes_remaining -= i;
|
|
|
515 data += i;
|
|
|
516
|
|
|
517 /* Now wait for the requestor to ack this chunk by deleting the
|
|
|
518 property. This can run random lisp code or signal.
|
|
|
519 */
|
|
|
520 wait_for_property_change (prop_id);
|
|
|
521 }
|
|
|
522 /* Now write a zero-length chunk to the property to tell the requestor
|
|
|
523 that we're done. */
|
|
|
524 #if 0
|
|
|
525 stderr_out (" INCR done\n");
|
|
|
526 #endif
|
|
|
527 if (! waiting_for_other_props_on_window (display, window))
|
|
|
528 XSelectInput (display, window, 0L);
|
|
|
529
|
|
|
530 XChangeProperty (display, window, reply.property, type, format,
|
|
|
531 PropModeReplace, data, 0);
|
|
|
532 }
|
|
|
533 }
|
|
|
534
|
|
|
535
|
|
|
536
|
|
|
537 /* Called from the event-loop in response to a SelectionRequest event.
|
|
|
538 */
|
|
|
539 void
|
|
|
540 x_handle_selection_request (XSelectionRequestEvent *event)
|
|
|
541 {
|
|
|
542 /* This function can GC */
|
|
|
543 struct gcpro gcpro1, gcpro2, gcpro3;
|
|
|
544 Lisp_Object local_selection_data = Qnil;
|
|
|
545 Lisp_Object selection_symbol;
|
|
|
546 Lisp_Object target_symbol = Qnil;
|
|
|
547 Lisp_Object converted_selection = Qnil;
|
|
|
548 Time local_selection_time;
|
|
|
549 Lisp_Object successful_p = Qnil;
|
|
|
550 int count;
|
|
|
551 struct device *d = get_device_from_display (event->display);
|
|
|
552
|
|
|
553 GCPRO3 (local_selection_data, converted_selection, target_symbol);
|
|
|
554
|
|
|
555 selection_symbol = x_atom_to_symbol (d, event->selection);
|
|
|
556
|
|
|
557 local_selection_data = assq_no_quit (selection_symbol, Vselection_alist);
|
|
|
558
|
|
|
559 #if 0
|
|
|
560 /* This list isn't user-visible, so it can't "go bad." */
|
|
|
561 assert (CONSP (local_selection_data));
|
|
|
562 assert (CONSP (XCDR (local_selection_data)));
|
|
|
563 assert (CONSP (XCDR (XCDR (local_selection_data))));
|
|
|
564 assert (NILP (XCDR (XCDR (XCDR (local_selection_data)))));
|
|
|
565 assert (CONSP (XCAR (XCDR (XCDR (local_selection_data)))));
|
|
|
566 assert (INTP (XCAR (XCAR (XCDR (XCDR (local_selection_data))))));
|
|
|
567 assert (INTP (XCDR (XCAR (XCDR (XCDR (local_selection_data))))));
|
|
|
568 #endif
|
|
|
569
|
|
|
570 if (NILP (local_selection_data))
|
|
|
571 {
|
|
|
572 /* Someone asked for the selection, but we don't have it any more. */
|
|
|
573 x_decline_selection_request (event);
|
|
|
574 goto DONE_LABEL;
|
|
|
575 }
|
|
|
576
|
|
|
577 local_selection_time =
|
|
|
578 * (Time *) XOPAQUE_DATA (XCAR (XCDR (XCDR (local_selection_data))));
|
|
|
579
|
|
|
580 if (event->time != CurrentTime &&
|
|
|
581 local_selection_time > event->time)
|
|
|
582 {
|
|
|
583 /* Someone asked for the selection, and we have one, but not the one
|
|
|
584 they're looking for. */
|
|
|
585 x_decline_selection_request (event);
|
|
|
586 goto DONE_LABEL;
|
|
|
587 }
|
|
|
588
|
|
|
589 count = specpdl_depth ();
|
|
|
590 record_unwind_protect (x_selection_request_lisp_error,
|
|
|
591 make_opaque_ptr (event));
|
|
|
592 target_symbol = x_atom_to_symbol (d, event->target);
|
|
|
593
|
|
|
594 #if 0 /* #### MULTIPLE doesn't work yet */
|
|
|
595 if (EQ (target_symbol, QMULTIPLE))
|
|
|
596 target_symbol = fetch_multiple_target (event);
|
|
|
597 #endif
|
|
|
598
|
|
|
599 /* Convert lisp objects back into binary data */
|
|
|
600
|
|
|
601 converted_selection =
|
|
|
602 get_local_selection (selection_symbol, target_symbol);
|
|
|
603
|
|
|
604 if (! NILP (converted_selection))
|
|
|
605 {
|
|
|
606 unsigned char *data;
|
|
|
607 unsigned int size;
|
|
|
608 int format;
|
|
|
609 Atom type;
|
|
|
610 lisp_data_to_selection_data (d, converted_selection,
|
|
|
611 &data, &type, &size, &format);
|
|
|
612
|
|
|
613 x_reply_selection_request (event, format, data, size, type);
|
|
|
614 successful_p = Qt;
|
|
|
615 /* Tell x_selection_request_lisp_error() it's cool. */ event->type = 0;
|
|
|
616 xfree (data);
|
|
|
617 }
|
|
|
618 unbind_to (count, Qnil);
|
|
|
619
|
|
|
620 DONE_LABEL:
|
|
|
621
|
|
|
622 UNGCPRO;
|
|
|
623
|
|
|
624 /* Let random lisp code notice that the selection has been asked for. */
|
|
|
625 {
|
|
|
626 Lisp_Object rest;
|
|
|
627 Lisp_Object val = Vx_sent_selection_hooks;
|
|
|
628 if (!UNBOUNDP (val) && !NILP (val))
|
|
|
629 {
|
|
|
630 if (CONSP (val) && !EQ (XCAR (val), Qlambda))
|
|
|
631 for (rest = val; !NILP (rest); rest = Fcdr (rest))
|
|
|
632 call3 (Fcar(rest), selection_symbol, target_symbol,
|
|
|
633 successful_p);
|
|
|
634 else
|
|
|
635 call3 (val, selection_symbol, target_symbol,
|
|
|
636 successful_p);
|
|
|
637 }
|
|
|
638 }
|
|
|
639 }
|
|
|
640
|
|
|
641
|
|
|
642 /* Called from the event-loop in response to a SelectionClear event.
|
|
|
643 */
|
|
|
644 void
|
|
|
645 x_handle_selection_clear (XSelectionClearEvent *event)
|
|
|
646 {
|
|
|
647 Display *display = event->display;
|
|
|
648 struct device *d = get_device_from_display (display);
|
|
|
649 Atom selection = event->selection;
|
|
|
650 Time changed_owner_time = event->time;
|
|
|
651
|
|
|
652 Lisp_Object selection_symbol, local_selection_data;
|
|
|
653 Time local_selection_time;
|
|
|
654
|
|
|
655 selection_symbol = x_atom_to_symbol (d, selection);
|
|
|
656
|
|
|
657 local_selection_data = assq_no_quit (selection_symbol, Vselection_alist);
|
|
|
658
|
|
|
659 /* Well, we already believe that we don't own it, so that's just fine. */
|
|
|
660 if (NILP (local_selection_data)) return;
|
|
|
661
|
|
|
662 local_selection_time =
|
|
|
663 * (Time *) XOPAQUE_DATA (XCAR (XCDR (XCDR (local_selection_data))));
|
|
|
664
|
|
|
665 /* This SelectionClear is for a selection that we no longer own, so we can
|
|
|
666 disregard it. (That is, we have reasserted the selection since this
|
|
|
667 request was generated.)
|
|
|
668 */
|
|
|
669 if (changed_owner_time != CurrentTime &&
|
|
|
670 local_selection_time > changed_owner_time)
|
|
|
671 return;
|
|
|
672
|
|
|
673 handle_selection_clear (selection_symbol);
|
|
|
674 }
|
|
|
675
|
|
|
676
|
|
|
677 /* This stuff is so that INCR selections are reentrant (that is, so we can
|
|
|
678 be servicing multiple INCR selection requests simultaneously). I haven't
|
|
|
679 actually tested that yet.
|
|
|
680 */
|
|
|
681
|
|
|
682 static int prop_location_tick;
|
|
|
683
|
|
|
684 static struct prop_location {
|
|
|
685 int tick;
|
|
|
686 Display *display;
|
|
|
687 Window window;
|
|
|
688 Atom property;
|
|
|
689 int desired_state;
|
|
|
690 struct prop_location *next;
|
|
|
691 } *for_whom_the_bell_tolls;
|
|
|
692
|
|
|
693
|
|
|
694 static int
|
|
|
695 property_deleted_p (void *tick)
|
|
|
696 {
|
|
|
697 struct prop_location *rest = for_whom_the_bell_tolls;
|
|
|
698 while (rest)
|
|
|
699 if (rest->tick == (long) tick)
|
|
|
700 return 0;
|
|
|
701 else
|
|
|
702 rest = rest->next;
|
|
|
703 return 1;
|
|
|
704 }
|
|
|
705
|
|
|
706 static int
|
|
|
707 waiting_for_other_props_on_window (Display *display, Window window)
|
|
|
708 {
|
|
|
709 struct prop_location *rest = for_whom_the_bell_tolls;
|
|
|
710 while (rest)
|
|
|
711 if (rest->display == display && rest->window == window)
|
|
|
712 return 1;
|
|
|
713 else
|
|
|
714 rest = rest->next;
|
|
|
715 return 0;
|
|
|
716 }
|
|
|
717
|
|
|
718
|
|
|
719 static int
|
|
|
720 expect_property_change (Display *display, Window window,
|
|
|
721 Atom property, int state)
|
|
|
722 {
|
|
|
723 struct prop_location *pl = xnew (struct prop_location);
|
|
|
724 pl->tick = ++prop_location_tick;
|
|
|
725 pl->display = display;
|
|
|
726 pl->window = window;
|
|
|
727 pl->property = property;
|
|
|
728 pl->desired_state = state;
|
|
|
729 pl->next = for_whom_the_bell_tolls;
|
|
|
730 for_whom_the_bell_tolls = pl;
|
|
|
731 return pl->tick;
|
|
|
732 }
|
|
|
733
|
|
|
734 static void
|
|
|
735 unexpect_property_change (int tick)
|
|
|
736 {
|
|
|
737 struct prop_location *prev = 0, *rest = for_whom_the_bell_tolls;
|
|
|
738 while (rest)
|
|
|
739 {
|
|
|
740 if (rest->tick == tick)
|
|
|
741 {
|
|
|
742 if (prev)
|
|
|
743 prev->next = rest->next;
|
|
|
744 else
|
|
|
745 for_whom_the_bell_tolls = rest->next;
|
|
|
746 xfree (rest);
|
|
|
747 return;
|
|
|
748 }
|
|
|
749 prev = rest;
|
|
|
750 rest = rest->next;
|
|
|
751 }
|
|
|
752 }
|
|
|
753
|
|
|
754 static void
|
|
|
755 wait_for_property_change (long tick)
|
|
|
756 {
|
|
|
757 /* This function can GC */
|
|
|
758 wait_delaying_user_input (property_deleted_p, (void *) tick);
|
|
|
759 }
|
|
|
760
|
|
|
761
|
|
|
762 /* Called from the event-loop in response to a PropertyNotify event.
|
|
|
763 */
|
|
|
764 void
|
|
|
765 x_handle_property_notify (XPropertyEvent *event)
|
|
|
766 {
|
|
|
767 struct prop_location *prev = 0, *rest = for_whom_the_bell_tolls;
|
|
|
768 while (rest)
|
|
|
769 {
|
|
|
770 if (rest->property == event->atom &&
|
|
|
771 rest->window == event->window &&
|
|
|
772 rest->display == event->display &&
|
|
|
773 rest->desired_state == event->state)
|
|
|
774 {
|
|
|
775 #if 0
|
|
|
776 stderr_out ("Saw expected prop-%s on %s\n",
|
|
|
777 (event->state == PropertyDelete ? "delete" : "change"),
|
|
|
778 (char *) string_data (XSYMBOL (x_atom_to_symbol (get_device_from_display (event->display), event->atom))->name);
|
|
|
779 #endif
|
|
|
780 if (prev)
|
|
|
781 prev->next = rest->next;
|
|
|
782 else
|
|
|
783 for_whom_the_bell_tolls = rest->next;
|
|
|
784 xfree (rest);
|
|
|
785 return;
|
|
|
786 }
|
|
|
787 prev = rest;
|
|
|
788 rest = rest->next;
|
|
|
789 }
|
|
|
790 #if 0
|
|
|
791 stderr_out ("Saw UNexpected prop-%s on %s\n",
|
|
|
792 (event->state == PropertyDelete ? "delete" : "change"),
|
|
|
793 (char *) string_data (XSYMBOL (x_atom_to_symbol (get_device_from_display (event->display), event->atom))->name));
|
|
|
794 #endif
|
|
|
795 }
|
|
|
796
|
|
|
797
|
|
|
798
|
|
|
799 #if 0 /* #### MULTIPLE doesn't work yet */
|
|
|
800
|
|
|
801 static Lisp_Object
|
|
|
802 fetch_multiple_target (XSelectionRequestEvent *event)
|
|
|
803 {
|
|
|
804 /* This function can GC */
|
|
|
805 Display *display = event->display;
|
|
|
806 Window window = event->requestor;
|
|
|
807 Atom target = event->target;
|
|
|
808 Atom selection_atom = event->selection;
|
|
|
809 int result;
|
|
|
810
|
|
|
811 return
|
|
|
812 Fcons (QMULTIPLE,
|
|
|
813 x_get_window_property_as_lisp_data (display, window, target,
|
|
|
814 QMULTIPLE,
|
|
|
815 selection_atom));
|
|
|
816 }
|
|
|
817
|
|
|
818 static Lisp_Object
|
|
|
819 copy_multiple_data (Lisp_Object obj)
|
|
|
820 {
|
|
|
821 Lisp_Object vec;
|
|
|
822 int i;
|
|
|
823 int len;
|
|
|
824 if (CONSP (obj))
|
|
|
825 return Fcons (XCAR (obj), copy_multiple_data (XCDR (obj)));
|
|
|
826
|
|
|
827 CHECK_VECTOR (obj);
|
|
|
828 len = XVECTOR_LENGTH (obj);
|
|
|
829 vec = make_vector (len, Qnil);
|
|
|
830 for (i = 0; i < len; i++)
|
|
|
831 {
|
|
|
832 Lisp_Object vec2 = XVECTOR_DATA (obj) [i];
|
|
|
833 CHECK_VECTOR (vec2);
|
|
|
834 if (XVECTOR_LENGTH (vec2) != 2)
|
|
|
835 signal_error (Qerror, list2 (build_string
|
|
|
836 ("vectors must be of length 2"),
|
|
|
837 vec2));
|
|
|
838 XVECTOR_DATA (vec) [i] = make_vector (2, Qnil);
|
|
|
839 XVECTOR_DATA (XVECTOR_DATA (vec) [i]) [0] = XVECTOR_DATA (vec2) [0];
|
|
|
840 XVECTOR_DATA (XVECTOR_DATA (vec) [i]) [1] = XVECTOR_DATA (vec2) [1];
|
|
|
841 }
|
|
|
842 return vec;
|
|
|
843 }
|
|
|
844
|
|
|
845 #endif /* 0 */
|
|
|
846
|
|
|
847
|
|
|
848 static Window reading_selection_reply;
|
|
|
849 static Atom reading_which_selection;
|
|
|
850 static int selection_reply_timed_out;
|
|
|
851
|
|
|
852 static int
|
|
|
853 selection_reply_done (void *ignore)
|
|
|
854 {
|
|
|
855 return !reading_selection_reply;
|
|
|
856 }
|
|
|
857
|
|
|
858 static Lisp_Object Qx_selection_reply_timeout_internal;
|
|
|
859
|
|
|
860 DEFUN ("x-selection-reply-timeout-internal", Fx_selection_reply_timeout_internal,
|
|
|
861 1, 1, 0, /*
|
|
|
862 */
|
|
|
863 (arg))
|
|
|
864 {
|
|
|
865 selection_reply_timed_out = 1;
|
|
|
866 reading_selection_reply = 0;
|
|
|
867 return Qnil;
|
|
|
868 }
|
|
|
869
|
|
|
870
|
|
|
871 /* Do protocol to read selection-data from the server.
|
|
|
872 Converts this to lisp data and returns it.
|
|
|
873 */
|
|
|
874 static Lisp_Object
|
|
|
875 x_get_foreign_selection (Lisp_Object selection_symbol, Lisp_Object target_type)
|
|
|
876 {
|
|
|
877 /* This function can GC */
|
|
|
878 struct device *d = decode_x_device (Qnil);
|
|
|
879 Display *display = DEVICE_X_DISPLAY (d);
|
|
|
880 struct frame *sel_frame = selected_frame ();
|
|
|
881 Window requestor_window = XtWindow (FRAME_X_TEXT_WIDGET (sel_frame));
|
|
|
882 Time requestor_time = DEVICE_X_MOUSE_TIMESTAMP (d);
|
|
|
883 Atom target_property = DEVICE_XATOM_EMACS_TMP (d);
|
|
|
884 Atom selection_atom = symbol_to_x_atom (d, selection_symbol, 0);
|
|
|
885 int speccount;
|
|
|
886 Atom type_atom = symbol_to_x_atom (d, (CONSP (target_type) ?
|
|
|
887 XCAR (target_type) : target_type), 0);
|
|
|
888
|
|
|
889 XConvertSelection (display, selection_atom, type_atom, target_property,
|
|
|
890 requestor_window, requestor_time);
|
|
|
891
|
|
|
892 /* Block until the reply has been read. */
|
|
|
893 reading_selection_reply = requestor_window;
|
|
|
894 reading_which_selection = selection_atom;
|
|
|
895 selection_reply_timed_out = 0;
|
|
|
896
|
|
|
897 speccount = specpdl_depth ();
|
|
|
898
|
|
|
899 /* add a timeout handler */
|
|
|
900 if (x_selection_timeout > 0)
|
|
|
901 {
|
|
|
902 Lisp_Object id = Fadd_timeout (make_int (x_selection_timeout),
|
|
|
903 Qx_selection_reply_timeout_internal,
|
|
|
904 Qnil, Qnil);
|
|
|
905 record_unwind_protect (Fdisable_timeout, id);
|
|
|
906 }
|
|
|
907
|
|
|
908 /* This is ^Gable */
|
|
|
909 wait_delaying_user_input (selection_reply_done, 0);
|
|
|
910
|
|
|
911 if (selection_reply_timed_out)
|
|
|
912 error ("timed out waiting for reply from selection owner");
|
|
|
913
|
|
|
914 unbind_to (speccount, Qnil);
|
|
|
915
|
|
|
916 /* otherwise, the selection is waiting for us on the requested property. */
|
|
|
917 return
|
|
|
918 x_get_window_property_as_lisp_data (display, requestor_window,
|
|
|
919 target_property, target_type,
|
|
|
920 selection_atom);
|
|
|
921 }
|
|
|
922
|
|
|
923
|
|
|
924 static void
|
|
|
925 x_get_window_property (Display *display, Window window, Atom property,
|
|
|
926 unsigned char **data_ret, int *bytes_ret,
|
|
|
927 Atom *actual_type_ret, int *actual_format_ret,
|
|
|
928 unsigned long *actual_size_ret, int delete_p)
|
|
|
929 {
|
|
|
930 int total_size;
|
|
|
931 unsigned long bytes_remaining;
|
|
|
932 int offset = 0;
|
|
|
933 unsigned char *tmp_data = 0;
|
|
|
934 int result;
|
|
|
935 int buffer_size = SELECTION_QUANTUM (display);
|
|
|
936 if (buffer_size > MAX_SELECTION_QUANTUM) buffer_size = MAX_SELECTION_QUANTUM;
|
|
|
937
|
|
|
938 /* First probe the thing to find out how big it is. */
|
|
|
939 result = XGetWindowProperty (display, window, property,
|
|
|
940 0, 0, False, AnyPropertyType,
|
|
|
941 actual_type_ret, actual_format_ret,
|
|
|
942 actual_size_ret,
|
|
|
943 &bytes_remaining, &tmp_data);
|
|
|
944 if (result != Success)
|
|
|
945 {
|
|
|
946 *data_ret = 0;
|
|
|
947 *bytes_ret = 0;
|
|
|
948 return;
|
|
|
949 }
|
|
|
950 XFree ((char *) tmp_data);
|
|
|
951
|
|
|
952 if (*actual_type_ret == None || *actual_format_ret == 0)
|
|
|
953 {
|
|
|
954 if (delete_p) XDeleteProperty (display, window, property);
|
|
|
955 *data_ret = 0;
|
|
|
956 *bytes_ret = 0;
|
|
|
957 return;
|
|
|
958 }
|
|
|
959
|
|
|
960 total_size = bytes_remaining + 1;
|
|
|
961 *data_ret = (unsigned char *) xmalloc (total_size);
|
|
|
962
|
|
|
963 /* Now read, until we've gotten it all. */
|
|
|
964 while (bytes_remaining)
|
|
|
965 {
|
|
|
966 #if 0
|
|
|
967 int last = bytes_remaining;
|
|
|
968 #endif
|
|
|
969 result =
|
|
|
970 XGetWindowProperty (display, window, property,
|
|
|
971 offset/4, buffer_size/4,
|
|
|
972 (delete_p ? True : False),
|
|
|
973 AnyPropertyType,
|
|
|
974 actual_type_ret, actual_format_ret,
|
|
|
975 actual_size_ret, &bytes_remaining, &tmp_data);
|
|
|
976 #if 0
|
|
|
977 stderr_out ("<< read %d\n", last-bytes_remaining);
|
|
|
978 #endif
|
|
|
979 /* If this doesn't return Success at this point, it means that
|
|
|
980 some clod deleted the selection while we were in the midst of
|
|
|
981 reading it. Deal with that, I guess....
|
|
|
982 */
|
|
|
983 if (result != Success) break;
|
|
|
984 *actual_size_ret *= *actual_format_ret / 8;
|
|
|
985 memcpy ((*data_ret) + offset, tmp_data, *actual_size_ret);
|
|
|
986 offset += *actual_size_ret;
|
|
|
987 XFree ((char *) tmp_data);
|
|
|
988 }
|
|
|
989 *bytes_ret = offset;
|
|
|
990 }
|
|
|
991
|
|
|
992
|
|
|
993 static void
|
|
|
994 receive_incremental_selection (Display *display, Window window, Atom property,
|
|
|
995 /* this one is for error messages only */
|
|
|
996 Lisp_Object target_type,
|
|
|
997 unsigned int min_size_bytes,
|
|
|
998 unsigned char **data_ret, int *size_bytes_ret,
|
|
|
999 Atom *type_ret, int *format_ret,
|
|
|
1000 unsigned long *size_ret)
|
|
|
1001 {
|
|
|
1002 /* This function can GC */
|
|
|
1003 int offset = 0;
|
|
|
1004 int prop_id;
|
|
|
1005 *size_bytes_ret = min_size_bytes;
|
|
|
1006 *data_ret = (unsigned char *) xmalloc (*size_bytes_ret);
|
|
|
1007 #if 0
|
|
|
1008 stderr_out ("\nread INCR %d\n", min_size_bytes);
|
|
|
1009 #endif
|
|
|
1010 /* At this point, we have read an INCR property, and deleted it (which
|
|
|
1011 is how we ack its receipt: the sending window will be selecting
|
|
|
1012 PropertyNotify events on our window to notice this).
|
|
|
1013
|
|
|
1014 Now, we must loop, waiting for the sending window to put a value on
|
|
|
1015 that property, then reading the property, then deleting it to ack.
|
|
|
1016 We are done when the sender places a property of length 0.
|
|
|
1017 */
|
|
|
1018 prop_id = expect_property_change (display, window, property,
|
|
|
1019 PropertyNewValue);
|
|
|
1020 while (1)
|
|
|
1021 {
|
|
|
1022 unsigned char *tmp_data;
|
|
|
1023 int tmp_size_bytes;
|
|
|
1024 wait_for_property_change (prop_id);
|
|
|
1025 /* expect it again immediately, because x_get_window_property may
|
|
|
1026 .. no it won't, I don't get it.
|
|
|
1027 .. Ok, I get it now, the Xt code that implements INCR is broken.
|
|
|
1028 */
|
|
|
1029 prop_id = expect_property_change (display, window, property,
|
|
|
1030 PropertyNewValue);
|
|
|
1031 x_get_window_property (display, window, property,
|
|
|
1032 &tmp_data, &tmp_size_bytes,
|
|
|
1033 type_ret, format_ret, size_ret, 1);
|
|
|
1034
|
|
|
1035 if (tmp_size_bytes == 0) /* we're done */
|
|
|
1036 {
|
|
|
1037 #if 0
|
|
|
1038 stderr_out (" read INCR done\n");
|
|
|
1039 #endif
|
|
|
1040 unexpect_property_change (prop_id);
|
|
|
1041 if (tmp_data) xfree (tmp_data);
|
|
|
1042 break;
|
|
|
1043 }
|
|
|
1044 #if 0
|
|
|
1045 stderr_out (" read INCR %d\n", tmp_size_bytes);
|
|
|
1046 #endif
|
|
|
1047 if (*size_bytes_ret < offset + tmp_size_bytes)
|
|
|
1048 {
|
|
|
1049 #if 0
|
|
|
1050 stderr_out (" read INCR realloc %d -> %d\n",
|
|
|
1051 *size_bytes_ret, offset + tmp_size_bytes);
|
|
|
1052 #endif
|
|
|
1053 *size_bytes_ret = offset + tmp_size_bytes;
|
|
|
1054 *data_ret = (unsigned char *) xrealloc (*data_ret, *size_bytes_ret);
|
|
|
1055 }
|
|
|
1056 memcpy ((*data_ret) + offset, tmp_data, tmp_size_bytes);
|
|
|
1057 offset += tmp_size_bytes;
|
|
|
1058 xfree (tmp_data);
|
|
|
1059 }
|
|
|
1060 }
|
|
|
1061
|
|
|
1062
|
|
|
1063 static Lisp_Object
|
|
|
1064 x_get_window_property_as_lisp_data (Display *display,
|
|
|
1065 Window window,
|
|
|
1066 Atom property,
|
|
|
1067 /* next two for error messages only */
|
|
|
1068 Lisp_Object target_type,
|
|
|
1069 Atom selection_atom)
|
|
|
1070 {
|
|
|
1071 /* This function can GC */
|
|
|
1072 Atom actual_type;
|
|
|
1073 int actual_format;
|
|
|
1074 unsigned long actual_size;
|
|
|
1075 unsigned char *data = NULL;
|
|
|
1076 int bytes = 0;
|
|
|
1077 Lisp_Object val;
|
|
|
1078 struct device *d = get_device_from_display (display);
|
|
|
1079
|
|
|
1080 x_get_window_property (display, window, property, &data, &bytes,
|
|
|
1081 &actual_type, &actual_format, &actual_size, 1);
|
|
|
1082 if (! data)
|
|
|
1083 {
|
|
|
1084 if (XGetSelectionOwner (display, selection_atom))
|
|
|
1085 /* there is a selection owner */
|
|
|
1086 signal_error
|
|
|
1087 (Qselection_conversion_error,
|
|
|
1088 Fcons (build_string ("selection owner couldn't convert"),
|
|
|
1089 Fcons (x_atom_to_symbol (d, selection_atom),
|
|
|
1090 actual_type ?
|
|
|
1091 list2 (target_type, x_atom_to_symbol (d, actual_type)) :
|
|
|
1092 list1 (target_type))));
|
|
|
1093 else
|
|
|
1094 signal_error (Qerror,
|
|
|
1095 list2 (build_string ("no selection"),
|
|
|
1096 x_atom_to_symbol (d, selection_atom)));
|
|
|
1097 }
|
|
|
1098
|
|
|
1099 if (actual_type == DEVICE_XATOM_INCR (d))
|
|
|
1100 {
|
|
|
1101 /* Ok, that data wasn't *the* data, it was just the beginning. */
|
|
|
1102
|
|
|
1103 unsigned int min_size_bytes = * ((unsigned int *) data);
|
|
|
1104 xfree (data);
|
|
|
1105 receive_incremental_selection (display, window, property, target_type,
|
|
|
1106 min_size_bytes, &data, &bytes,
|
|
|
1107 &actual_type, &actual_format,
|
|
|
1108 &actual_size);
|
|
|
1109 }
|
|
|
1110
|
|
|
1111 /* It's been read. Now convert it to a lisp object in some semi-rational
|
|
|
1112 manner. */
|
|
|
1113 val = selection_data_to_lisp_data (d, data, bytes,
|
|
|
1114 actual_type, actual_format);
|
|
|
1115
|
|
|
1116 xfree (data);
|
|
|
1117 return val;
|
|
|
1118 }
|
|
|
1119
|
|
|
1120 /* These functions convert from the selection data read from the server into
|
|
|
1121 something that we can use from elisp, and vice versa.
|
|
|
1122
|
|
|
1123 Type: Format: Size: Elisp Type:
|
|
|
1124 ----- ------- ----- -----------
|
|
|
1125 * 8 * String
|
|
|
1126 ATOM 32 1 Symbol
|
|
|
1127 ATOM 32 > 1 Vector of Symbols
|
|
|
1128 * 16 1 Integer
|
|
|
1129 * 16 > 1 Vector of Integers
|
|
|
1130 * 32 1 if <=16 bits: Integer
|
|
|
1131 if > 16 bits: Cons of top16, bot16
|
|
|
1132 * 32 > 1 Vector of the above
|
|
|
1133
|
|
|
1134 When converting a Lisp number to C, it is assumed to be of format 16 if
|
|
|
1135 it is an integer, and of format 32 if it is a cons of two integers.
|
|
|
1136
|
|
|
1137 When converting a vector of numbers from Elisp to C, it is assumed to be
|
|
|
1138 of format 16 if every element in the vector is an integer, and is assumed
|
|
|
1139 to be of format 32 if any element is a cons of two integers.
|
|
|
1140
|
|
|
1141 When converting an object to C, it may be of the form (SYMBOL . <data>)
|
|
|
1142 where SYMBOL is what we should claim that the type is. Format and
|
|
|
1143 representation are as above.
|
|
|
1144
|
|
|
1145 NOTE: Under Mule, when someone shoves us a string without a type, we
|
|
|
1146 set the type to 'COMPOUND_TEXT and automatically convert to Compound
|
|
|
1147 Text. If the string has a type, we assume that the user wants the
|
|
|
1148 data sent as-is so we just do "binary" conversion.
|
|
|
1149 */
|
|
|
1150
|
|
|
1151
|
|
|
1152 static Lisp_Object
|
|
|
1153 selection_data_to_lisp_data (struct device *d,
|
|
|
1154 unsigned char *data,
|
|
|
1155 size_t size,
|
|
|
1156 Atom type,
|
|
|
1157 int format)
|
|
|
1158 {
|
|
|
1159 if (type == DEVICE_XATOM_NULL (d))
|
|
|
1160 return QNULL;
|
|
|
1161
|
|
|
1162 /* Convert any 8-bit data to a string, for compactness. */
|
|
|
1163 else if (format == 8)
|
|
|
1164 return make_ext_string (data, size,
|
|
|
1165 type == DEVICE_XATOM_TEXT (d) ||
|
|
|
1166 type == DEVICE_XATOM_COMPOUND_TEXT (d)
|
|
|
1167 ? FORMAT_CTEXT : FORMAT_BINARY);
|
|
|
1168
|
|
|
1169 /* Convert a single atom to a Lisp Symbol.
|
|
|
1170 Convert a set of atoms to a vector of symbols. */
|
|
|
1171 else if (type == XA_ATOM)
|
|
|
1172 {
|
|
|
1173 if (size == sizeof (Atom))
|
|
|
1174 return x_atom_to_symbol (d, *((Atom *) data));
|
|
|
1175 else
|
|
|
1176 {
|
|
|
1177 int i;
|
|
|
1178 int len = size / sizeof (Atom);
|
|
|
1179 Lisp_Object v = Fmake_vector (make_int (len), Qzero);
|
|
|
1180 for (i = 0; i < len; i++)
|
|
|
1181 Faset (v, make_int (i), x_atom_to_symbol (d, ((Atom *) data) [i]));
|
|
|
1182 return v;
|
|
|
1183 }
|
|
|
1184 }
|
|
|
1185
|
|
|
1186 /* Convert a single 16 or small 32 bit number to a Lisp Int.
|
|
|
1187 If the number is > 16 bits, convert it to a cons of integers,
|
|
|
1188 16 bits in each half.
|
|
|
1189 */
|
|
|
1190 else if (format == 32 && size == sizeof (long))
|
|
|
1191 return word_to_lisp (((unsigned long *) data) [0]);
|
|
|
1192 else if (format == 16 && size == sizeof (short))
|
|
|
1193 return make_int ((int) (((unsigned short *) data) [0]));
|
|
|
1194
|
|
|
1195 /* Convert any other kind of data to a vector of numbers, represented
|
|
|
1196 as above (as an integer, or a cons of two 16 bit integers).
|
|
|
1197
|
|
|
1198 #### Perhaps we should return the actual type to lisp as well.
|
|
|
1199
|
|
|
1200 (x-get-selection-internal 'PRIMARY 'LINE_NUMBER)
|
|
|
1201 ==> [4 4]
|
|
|
1202
|
|
|
1203 and perhaps it should be
|
|
|
1204
|
|
|
1205 (x-get-selection-internal 'PRIMARY 'LINE_NUMBER)
|
|
|
1206 ==> (SPAN . [4 4])
|
|
|
1207
|
|
|
1208 Right now the fact that the return type was SPAN is discarded before
|
|
|
1209 lisp code gets to see it.
|
|
|
1210 */
|
|
|
1211 else if (format == 16)
|
|
|
1212 {
|
|
|
1213 int i;
|
|
|
1214 Lisp_Object v = make_vector (size / 4, Qzero);
|
|
|
1215 for (i = 0; i < (int) size / 4; i++)
|
|
|
1216 {
|
|
|
1217 int j = (int) ((unsigned short *) data) [i];
|
|
|
1218 Faset (v, make_int (i), make_int (j));
|
|
|
1219 }
|
|
|
1220 return v;
|
|
|
1221 }
|
|
|
1222 else
|
|
|
1223 {
|
|
|
1224 int i;
|
|
|
1225 Lisp_Object v = make_vector (size / 4, Qzero);
|
|
|
1226 for (i = 0; i < (int) size / 4; i++)
|
|
|
1227 {
|
|
|
1228 unsigned long j = ((unsigned long *) data) [i];
|
|
|
1229 Faset (v, make_int (i), word_to_lisp (j));
|
|
|
1230 }
|
|
|
1231 return v;
|
|
|
1232 }
|
|
|
1233 }
|
|
|
1234
|
|
|
1235
|
|
|
1236 static void
|
|
|
1237 lisp_data_to_selection_data (struct device *d,
|
|
|
1238 Lisp_Object obj,
|
|
|
1239 unsigned char **data_ret,
|
|
|
1240 Atom *type_ret,
|
|
|
1241 unsigned int *size_ret,
|
|
|
1242 int *format_ret)
|
|
|
1243 {
|
|
|
1244 Lisp_Object type = Qnil;
|
|
|
1245
|
|
|
1246 if (CONSP (obj) && SYMBOLP (XCAR (obj)))
|
|
|
1247 {
|
|
|
1248 type = XCAR (obj);
|
|
|
1249 obj = XCDR (obj);
|
|
|
1250 if (CONSP (obj) && NILP (XCDR (obj)))
|
|
|
1251 obj = XCAR (obj);
|
|
|
1252 }
|
|
|
1253
|
|
|
1254 if (EQ (obj, QNULL) || (EQ (type, QNULL)))
|
|
|
1255 { /* This is not the same as declining */
|
|
|
1256 *format_ret = 32;
|
|
|
1257 *size_ret = 0;
|
|
|
1258 *data_ret = 0;
|
|
|
1259 type = QNULL;
|
|
|
1260 }
|
|
|
1261 else if (STRINGP (obj))
|
|
|
1262 {
|
|
|
1263 CONST Extbyte *extval;
|
|
|
1264 Extcount extvallen;
|
|
|
1265
|
|
|
1266 if (NILP (type))
|
|
|
1267 GET_STRING_CTEXT_DATA_ALLOCA (obj, extval, extvallen);
|
|
|
1268 else
|
|
|
1269 GET_STRING_BINARY_DATA_ALLOCA (obj, extval, extvallen);
|
|
|
1270 *format_ret = 8;
|
|
|
1271 *size_ret = extvallen;
|
|
|
1272 *data_ret = (unsigned char *) xmalloc (*size_ret);
|
|
|
1273 memcpy (*data_ret, extval, *size_ret);
|
|
|
1274 #ifdef MULE
|
|
|
1275 if (NILP (type)) type = QCOMPOUND_TEXT;
|
|
|
1276 #else
|
|
|
1277 if (NILP (type)) type = QSTRING;
|
|
|
1278 #endif
|
|
|
1279 }
|
|
|
1280 else if (CHARP (obj))
|
|
|
1281 {
|
|
|
1282 Bufbyte buf[MAX_EMCHAR_LEN];
|
|
|
1283 Bytecount len;
|
|
|
1284 CONST Extbyte *extval;
|
|
|
1285 Extcount extvallen;
|
|
|
1286
|
|
|
1287 *format_ret = 8;
|
|
|
1288 len = set_charptr_emchar (buf, XCHAR (obj));
|
|
|
1289 GET_CHARPTR_EXT_CTEXT_DATA_ALLOCA (buf, len, extval, extvallen);
|
|
|
1290 *size_ret = extvallen;
|
|
|
1291 *data_ret = (unsigned char *) xmalloc (*size_ret);
|
|
|
1292 memcpy (*data_ret, extval, *size_ret);
|
|
|
1293 #ifdef MULE
|
|
|
1294 if (NILP (type)) type = QCOMPOUND_TEXT;
|
|
|
1295 #else
|
|
|
1296 if (NILP (type)) type = QSTRING;
|
|
|
1297 #endif
|
|
|
1298 }
|
|
|
1299 else if (SYMBOLP (obj))
|
|
|
1300 {
|
|
|
1301 *format_ret = 32;
|
|
|
1302 *size_ret = 1;
|
|
|
1303 *data_ret = (unsigned char *) xmalloc (sizeof (Atom) + 1);
|
|
|
1304 (*data_ret) [sizeof (Atom)] = 0;
|
|
|
1305 (*(Atom **) data_ret) [0] = symbol_to_x_atom (d, obj, 0);
|
|
|
1306 if (NILP (type)) type = QATOM;
|
|
|
1307 }
|
|
|
1308 else if (INTP (obj) &&
|
|
|
1309 XINT (obj) <= 0x7FFF &&
|
|
|
1310 XINT (obj) >= -0x8000)
|
|
|
1311 {
|
|
|
1312 *format_ret = 16;
|
|
|
1313 *size_ret = 1;
|
|
|
1314 *data_ret = (unsigned char *) xmalloc (sizeof (short) + 1);
|
|
|
1315 (*data_ret) [sizeof (short)] = 0;
|
|
|
1316 (*(short **) data_ret) [0] = (short) XINT (obj);
|
|
|
1317 if (NILP (type)) type = QINTEGER;
|
|
|
1318 }
|
|
|
1319 else if (INTP (obj) || CONSP (obj))
|
|
|
1320 {
|
|
|
1321 *format_ret = 32;
|
|
|
1322 *size_ret = 1;
|
|
|
1323 *data_ret = (unsigned char *) xmalloc (sizeof (long) + 1);
|
|
|
1324 (*data_ret) [sizeof (long)] = 0;
|
|
|
1325 (*(unsigned long **) data_ret) [0] = lisp_to_word (obj);
|
|
|
1326 if (NILP (type)) type = QINTEGER;
|
|
|
1327 }
|
|
|
1328 else if (VECTORP (obj))
|
|
|
1329 {
|
|
|
1330 /* Lisp Vectors may represent a set of ATOMs;
|
|
|
1331 a set of 16 or 32 bit INTEGERs;
|
|
|
1332 or a set of ATOM_PAIRs (represented as [[A1 A2] [A3 A4] ...]
|
|
|
1333 */
|
|
|
1334 int i;
|
|
|
1335
|
|
|
1336 if (SYMBOLP (XVECTOR_DATA (obj) [0]))
|
|
|
1337 /* This vector is an ATOM set */
|
|
|
1338 {
|
|
|
1339 if (NILP (type)) type = QATOM;
|
|
|
1340 *size_ret = XVECTOR_LENGTH (obj);
|
|
|
1341 *format_ret = 32;
|
|
|
1342 *data_ret = (unsigned char *) xmalloc ((*size_ret) * sizeof (Atom));
|
|
|
1343 for (i = 0; i < (int) (*size_ret); i++)
|
|
|
1344 if (SYMBOLP (XVECTOR_DATA (obj) [i]))
|
|
|
1345 (*(Atom **) data_ret) [i] =
|
|
|
1346 symbol_to_x_atom (d, XVECTOR_DATA (obj) [i], 0);
|
|
|
1347 else
|
|
|
1348 signal_error (Qerror, /* Qselection_error */
|
|
|
1349 list2 (build_string
|
|
|
1350 ("all elements of the vector must be of the same type"),
|
|
|
1351 obj));
|
|
|
1352 }
|
|
|
1353 #if 0 /* #### MULTIPLE doesn't work yet */
|
|
|
1354 else if (VECTORP (XVECTOR_DATA (obj) [0]))
|
|
|
1355 /* This vector is an ATOM_PAIR set */
|
|
|
1356 {
|
|
|
1357 if (NILP (type)) type = QATOM_PAIR;
|
|
|
1358 *size_ret = XVECTOR_LENGTH (obj);
|
|
|
1359 *format_ret = 32;
|
|
|
1360 *data_ret = (unsigned char *)
|
|
|
1361 xmalloc ((*size_ret) * sizeof (Atom) * 2);
|
|
|
1362 for (i = 0; i < *size_ret; i++)
|
|
|
1363 if (VECTORP (XVECTOR_DATA (obj) [i]))
|
|
|
1364 {
|
|
|
1365 Lisp_Object pair = XVECTOR_DATA (obj) [i];
|
|
|
1366 if (XVECTOR_LENGTH (pair) != 2)
|
|
|
1367 signal_error (Qerror,
|
|
|
1368 list2 (build_string
|
|
|
1369 ("elements of the vector must be vectors of exactly two elements"),
|
|
|
1370 pair));
|
|
|
1371
|
|
|
1372 (*(Atom **) data_ret) [i * 2] =
|
|
|
1373 symbol_to_x_atom (d, XVECTOR_DATA (pair) [0], 0);
|
|
|
1374 (*(Atom **) data_ret) [(i * 2) + 1] =
|
|
|
1375 symbol_to_x_atom (d, XVECTOR_DATA (pair) [1], 0);
|
|
|
1376 }
|
|
|
1377 else
|
|
|
1378 signal_error (Qerror,
|
|
|
1379 list2 (build_string
|
|
|
1380 ("all elements of the vector must be of the same type"),
|
|
|
1381 obj));
|
|
|
1382 }
|
|
|
1383 #endif
|
|
|
1384 else
|
|
|
1385 /* This vector is an INTEGER set, or something like it */
|
|
|
1386 {
|
|
|
1387 *size_ret = XVECTOR_LENGTH (obj);
|
|
|
1388 if (NILP (type)) type = QINTEGER;
|
|
|
1389 *format_ret = 16;
|
|
|
1390 for (i = 0; i < (int) (*size_ret); i++)
|
|
|
1391 if (CONSP (XVECTOR_DATA (obj) [i]))
|
|
|
1392 *format_ret = 32;
|
|
|
1393 else if (!INTP (XVECTOR_DATA (obj) [i]))
|
|
|
1394 signal_error (Qerror, /* Qselection_error */
|
|
|
1395 list2 (build_string
|
|
|
1396 ("all elements of the vector must be integers or conses of integers"),
|
|
|
1397 obj));
|
|
|
1398
|
|
|
1399 *data_ret = (unsigned char *) xmalloc (*size_ret * (*format_ret/8));
|
|
|
1400 for (i = 0; i < (int) (*size_ret); i++)
|
|
|
1401 if (*format_ret == 32)
|
|
|
1402 (*((unsigned long **) data_ret)) [i] =
|
|
|
1403 lisp_to_word (XVECTOR_DATA (obj) [i]);
|
|
|
1404 else
|
|
|
1405 (*((unsigned short **) data_ret)) [i] =
|
|
|
1406 (unsigned short) lisp_to_word (XVECTOR_DATA (obj) [i]);
|
|
|
1407 }
|
|
|
1408 }
|
|
|
1409 else
|
|
|
1410 signal_error (Qerror, /* Qselection_error */
|
|
|
1411 list2 (build_string ("unrecognized selection data"),
|
|
|
1412 obj));
|
|
|
1413
|
|
|
1414 *type_ret = symbol_to_x_atom (d, type, 0);
|
|
|
1415 }
|
|
|
1416
|
|
|
1417
|
|
|
1418
|
|
|
1419 /* Called from the event loop to handle SelectionNotify events.
|
|
|
1420 I don't think this needs to be reentrant.
|
|
|
1421 */
|
|
|
1422 void
|
|
|
1423 x_handle_selection_notify (XSelectionEvent *event)
|
|
|
1424 {
|
|
|
1425 if (! reading_selection_reply)
|
|
|
1426 message ("received an unexpected SelectionNotify event");
|
|
|
1427 else if (event->requestor != reading_selection_reply)
|
|
|
1428 message ("received a SelectionNotify event for the wrong window");
|
|
|
1429 else if (event->selection != reading_which_selection)
|
|
|
1430 message ("received the wrong selection type in SelectionNotify!");
|
|
|
1431 else
|
|
|
1432 reading_selection_reply = 0; /* we're done now. */
|
|
|
1433 }
|
|
|
1434
|
|
|
1435 static void
|
|
|
1436 x_disown_selection (Lisp_Object selection, Lisp_Object timeval)
|
|
|
1437 {
|
|
|
1438 struct device *d = decode_x_device (Qnil);
|
|
|
1439 Display *display = DEVICE_X_DISPLAY (d);
|
|
|
1440 Time timestamp;
|
|
|
1441 Atom selection_atom;
|
|
|
1442
|
|
|
1443 CHECK_SYMBOL (selection);
|
|
|
1444 if (NILP (timeval))
|
|
|
1445 timestamp = DEVICE_X_MOUSE_TIMESTAMP (d);
|
|
|
1446 else
|
|
|
1447 {
|
|
|
1448 /* #### This is bogus. See the comment above about problems
|
|
|
1449 on OSF/1 and DEC Alphas. Yet another reason why it sucks
|
|
|
1450 to have the implementation (i.e. cons of two 16-bit
|
|
|
1451 integers) exposed. */
|
|
|
1452 time_t the_time;
|
|
|
1453 lisp_to_time (timeval, &the_time);
|
|
|
1454 timestamp = (Time) the_time;
|
|
|
1455 }
|
|
|
1456
|
|
|
1457 selection_atom = symbol_to_x_atom (d, selection, 0);
|
|
|
1458
|
|
|
1459 XSetSelectionOwner (display, selection_atom, None, timestamp);
|
|
|
1460 }
|
|
|
1461
|
|
|
1462 static Lisp_Object
|
|
|
1463 x_selection_exists_p (Lisp_Object selection)
|
|
|
1464 {
|
|
|
1465 struct device *d = decode_x_device (Qnil);
|
|
|
1466 Display *dpy = DEVICE_X_DISPLAY (d);
|
|
|
1467 return XGetSelectionOwner (dpy, symbol_to_x_atom (d, selection, 0)) != None ?
|
|
|
1468 Qt : Qnil;
|
|
|
1469 }
|
|
|
1470
|
|
|
1471
|
|
|
1472 #ifdef CUT_BUFFER_SUPPORT
|
|
|
1473
|
|
|
1474 static int cut_buffers_initialized; /* Whether we're sure they all exist */
|
|
|
1475
|
|
|
1476 /* Ensure that all 8 cut buffers exist. ICCCM says we gotta... */
|
|
|
1477 static void
|
|
|
1478 initialize_cut_buffers (Display *display, Window window)
|
|
|
1479 {
|
|
|
1480 static unsigned CONST char * CONST data = (unsigned CONST char *) "";
|
|
|
1481 #define FROB(atom) XChangeProperty (display, window, atom, XA_STRING, 8, \
|
|
|
1482 PropModeAppend, data, 0)
|
|
|
1483 FROB (XA_CUT_BUFFER0);
|
|
|
1484 FROB (XA_CUT_BUFFER1);
|
|
|
1485 FROB (XA_CUT_BUFFER2);
|
|
|
1486 FROB (XA_CUT_BUFFER3);
|
|
|
1487 FROB (XA_CUT_BUFFER4);
|
|
|
1488 FROB (XA_CUT_BUFFER5);
|
|
|
1489 FROB (XA_CUT_BUFFER6);
|
|
|
1490 FROB (XA_CUT_BUFFER7);
|
|
|
1491 #undef FROB
|
|
|
1492 cut_buffers_initialized = 1;
|
|
|
1493 }
|
|
|
1494
|
|
|
1495 #define CHECK_CUTBUFFER(symbol) \
|
|
|
1496 { CHECK_SYMBOL (symbol); \
|
|
|
1497 if (!EQ((symbol),QCUT_BUFFER0) && !EQ((symbol),QCUT_BUFFER1) && \
|
|
|
1498 !EQ((symbol),QCUT_BUFFER2) && !EQ((symbol),QCUT_BUFFER3) && \
|
|
|
1499 !EQ((symbol),QCUT_BUFFER4) && !EQ((symbol),QCUT_BUFFER5) && \
|
|
|
1500 !EQ((symbol),QCUT_BUFFER6) && !EQ((symbol),QCUT_BUFFER7)) \
|
|
|
1501 signal_error (Qerror, list2 (build_string ("Doesn't name a cutbuffer"), \
|
|
|
1502 (symbol))); \
|
|
|
1503 }
|
|
|
1504
|
|
|
1505 DEFUN ("x-get-cutbuffer-internal", Fx_get_cutbuffer_internal, 1, 1, 0, /*
|
|
|
1506 Return the value of the named CUTBUFFER (typically CUT_BUFFER0).
|
|
|
1507 */
|
|
|
1508 (cutbuffer))
|
|
|
1509 {
|
|
|
1510 struct device *d = decode_x_device (Qnil);
|
|
|
1511 Display *display = DEVICE_X_DISPLAY (d);
|
|
|
1512 Window window = RootWindow (display, 0); /* Cutbuffers are on frame 0 */
|
|
|
1513 Atom cut_buffer_atom;
|
|
|
1514 unsigned char *data;
|
|
|
1515 int bytes;
|
|
|
1516 Atom type;
|
|
|
1517 int format;
|
|
|
1518 unsigned long size;
|
|
|
1519 Lisp_Object ret;
|
|
|
1520
|
|
|
1521 CHECK_CUTBUFFER (cutbuffer);
|
|
|
1522 cut_buffer_atom = symbol_to_x_atom (d, cutbuffer, 0);
|
|
|
1523
|
|
|
1524 x_get_window_property (display, window, cut_buffer_atom, &data, &bytes,
|
|
|
1525 &type, &format, &size, 0);
|
|
|
1526 if (!data) return Qnil;
|
|
|
1527
|
|
|
1528 if (format != 8 || type != XA_STRING)
|
|
|
1529 signal_simple_error_2 ("Cut buffer doesn't contain 8-bit STRING data",
|
|
|
1530 x_atom_to_symbol (d, type),
|
|
|
1531 make_int (format));
|
|
|
1532
|
|
|
1533 /* We cheat - if the string contains an ESC character, that's
|
|
|
1534 technically not allowed in a STRING, so we assume it's
|
|
|
1535 COMPOUND_TEXT that we stored there ourselves earlier,
|
|
|
1536 in x-store-cutbuffer-internal */
|
|
|
1537 ret = (bytes ?
|
|
|
1538 make_ext_string (data, bytes,
|
|
|
1539 memchr (data, 0x1b, bytes) ?
|
|
|
1540 FORMAT_CTEXT : FORMAT_BINARY)
|
|
|
1541 : Qnil);
|
|
|
1542 xfree (data);
|
|
|
1543 return ret;
|
|
|
1544 }
|
|
|
1545
|
|
|
1546
|
|
|
1547 DEFUN ("x-store-cutbuffer-internal", Fx_store_cutbuffer_internal, 2, 2, 0, /*
|
|
|
1548 Set the value of the named CUTBUFFER (typically CUT_BUFFER0) to STRING.
|
|
|
1549 */
|
|
|
1550 (cutbuffer, string))
|
|
|
1551 {
|
|
|
1552 struct device *d = decode_x_device (Qnil);
|
|
|
1553 Display *display = DEVICE_X_DISPLAY (d);
|
|
|
1554 Window window = RootWindow (display, 0); /* Cutbuffers are on frame 0 */
|
|
|
1555 Atom cut_buffer_atom;
|
|
|
1556 CONST Extbyte *data = XSTRING_DATA (string);
|
|
|
1557 Extcount bytes = XSTRING_LENGTH (string);
|
|
|
1558 Extcount bytes_remaining;
|
|
|
1559 int max_bytes = SELECTION_QUANTUM (display);
|
|
|
1560 #ifdef MULE
|
|
|
1561 CONST Bufbyte *ptr, *end;
|
|
|
1562 enum { ASCII, LATIN_1, WORLD } chartypes = ASCII;
|
|
|
1563 #endif
|
|
|
1564
|
|
|
1565 if (max_bytes > MAX_SELECTION_QUANTUM)
|
|
|
1566 max_bytes = MAX_SELECTION_QUANTUM;
|
|
|
1567
|
|
|
1568 CHECK_CUTBUFFER (cutbuffer);
|
|
|
1569 CHECK_STRING (string);
|
|
|
1570 cut_buffer_atom = symbol_to_x_atom (d, cutbuffer, 0);
|
|
|
1571
|
|
|
1572 if (! cut_buffers_initialized)
|
|
|
1573 initialize_cut_buffers (display, window);
|
|
|
1574
|
|
|
1575 /* We use the STRING encoding (Latin-1 only) if we can, else COMPOUND_TEXT.
|
|
|
1576 We cheat and use type = `STRING' even when using COMPOUND_TEXT.
|
|
|
1577 The ICCCM requires that this be so, and other clients assume it,
|
|
|
1578 as we do ourselves in initialize_cut_buffers. */
|
|
|
1579
|
|
|
1580 #ifdef MULE
|
|
|
1581 /* Optimize for the common ASCII case */
|
|
|
1582 for (ptr = data, end = ptr + bytes; ptr <= end; )
|
|
|
1583 {
|
|
|
1584 if (BYTE_ASCII_P (*ptr))
|
|
|
1585 {
|
|
|
1586 ptr++;
|
|
|
1587 continue;
|
|
|
1588 }
|
|
|
1589
|
|
|
1590 if ((*ptr) == LEADING_BYTE_LATIN_ISO8859_1 ||
|
|
|
1591 (*ptr) == LEADING_BYTE_CONTROL_1)
|
|
|
1592 {
|
|
|
1593 chartypes = LATIN_1;
|
|
|
1594 ptr += 2;
|
|
|
1595 continue;
|
|
|
1596 }
|
|
|
1597
|
|
|
1598 chartypes = WORLD;
|
|
|
1599 break;
|
|
|
1600 }
|
|
|
1601
|
|
|
1602 if (chartypes == LATIN_1)
|
|
|
1603 GET_STRING_BINARY_DATA_ALLOCA (string, data, bytes);
|
|
|
1604 else if (chartypes == WORLD)
|
|
|
1605 GET_STRING_CTEXT_DATA_ALLOCA (string, data, bytes);
|
|
|
1606 #endif /* MULE */
|
|
|
1607
|
|
|
1608 bytes_remaining = bytes;
|
|
|
1609
|
|
|
1610 while (bytes_remaining)
|
|
|
1611 {
|
|
|
1612 int chunk = bytes_remaining < max_bytes ? bytes_remaining : max_bytes;
|
|
|
1613 XChangeProperty (display, window, cut_buffer_atom, XA_STRING, 8,
|
|
|
1614 (bytes_remaining == bytes
|
|
|
1615 ? PropModeReplace : PropModeAppend),
|
|
|
1616 data, chunk);
|
|
|
1617 data += chunk;
|
|
|
1618 bytes_remaining -= chunk;
|
|
|
1619 }
|
|
|
1620 return string;
|
|
|
1621 }
|
|
|
1622
|
|
|
1623
|
|
|
1624 DEFUN ("x-rotate-cutbuffers-internal", Fx_rotate_cutbuffers_internal, 1, 1, 0, /*
|
|
|
1625 Rotate the values of the cutbuffers by the given number of steps;
|
|
|
1626 positive means move values forward, negative means backward.
|
|
|
1627 */
|
|
|
1628 (n))
|
|
|
1629 {
|
|
|
1630 struct device *d = decode_x_device (Qnil);
|
|
|
1631 Display *display = DEVICE_X_DISPLAY (d);
|
|
|
1632 Window window = RootWindow (display, 0); /* Cutbuffers are on frame 0 */
|
|
|
1633 Atom props [8];
|
|
|
1634
|
|
|
1635 CHECK_INT (n);
|
|
|
1636 if (XINT (n) == 0)
|
|
|
1637 return n;
|
|
|
1638 if (! cut_buffers_initialized)
|
|
|
1639 initialize_cut_buffers (display, window);
|
|
|
1640 props[0] = XA_CUT_BUFFER0;
|
|
|
1641 props[1] = XA_CUT_BUFFER1;
|
|
|
1642 props[2] = XA_CUT_BUFFER2;
|
|
|
1643 props[3] = XA_CUT_BUFFER3;
|
|
|
1644 props[4] = XA_CUT_BUFFER4;
|
|
|
1645 props[5] = XA_CUT_BUFFER5;
|
|
|
1646 props[6] = XA_CUT_BUFFER6;
|
|
|
1647 props[7] = XA_CUT_BUFFER7;
|
|
|
1648 XRotateWindowProperties (display, window, props, 8, XINT (n));
|
|
|
1649 return n;
|
|
|
1650 }
|
|
|
1651
|
|
|
1652 #endif /* CUT_BUFFER_SUPPORT */
|
|
|
1653
|
|
|
1654
|
|
|
1655
|
|
|
1656 /************************************************************************/
|
|
|
1657 /* initialization */
|
|
|
1658 /************************************************************************/
|
|
|
1659
|
|
|
1660 void
|
|
|
1661 syms_of_xselect (void)
|
|
|
1662 {
|
|
|
1663
|
|
|
1664 #ifdef CUT_BUFFER_SUPPORT
|
|
|
1665 DEFSUBR (Fx_get_cutbuffer_internal);
|
|
|
1666 DEFSUBR (Fx_store_cutbuffer_internal);
|
|
|
1667 DEFSUBR (Fx_rotate_cutbuffers_internal);
|
|
|
1668 #endif /* CUT_BUFFER_SUPPORT */
|
|
|
1669
|
|
|
1670 /* Unfortunately, timeout handlers must be lisp functions. */
|
|
|
1671 defsymbol (&Qx_selection_reply_timeout_internal,
|
|
|
1672 "x-selection-reply-timeout-internal");
|
|
|
1673 DEFSUBR (Fx_selection_reply_timeout_internal);
|
|
|
1674
|
|
|
1675 #ifdef CUT_BUFFER_SUPPORT
|
|
|
1676 defsymbol (&QCUT_BUFFER0, "CUT_BUFFER0");
|
|
|
1677 defsymbol (&QCUT_BUFFER1, "CUT_BUFFER1");
|
|
|
1678 defsymbol (&QCUT_BUFFER2, "CUT_BUFFER2");
|
|
|
1679 defsymbol (&QCUT_BUFFER3, "CUT_BUFFER3");
|
|
|
1680 defsymbol (&QCUT_BUFFER4, "CUT_BUFFER4");
|
|
|
1681 defsymbol (&QCUT_BUFFER5, "CUT_BUFFER5");
|
|
|
1682 defsymbol (&QCUT_BUFFER6, "CUT_BUFFER6");
|
|
|
1683 defsymbol (&QCUT_BUFFER7, "CUT_BUFFER7");
|
|
|
1684 #endif /* CUT_BUFFER_SUPPORT */
|
|
|
1685 }
|
|
|
1686
|
|
|
1687 void
|
|
|
1688 console_type_create_select_x (void)
|
|
|
1689 {
|
|
|
1690 CONSOLE_HAS_METHOD (x, own_selection);
|
|
|
1691 CONSOLE_HAS_METHOD (x, disown_selection);
|
|
|
1692 CONSOLE_HAS_METHOD (x, get_foreign_selection);
|
|
|
1693 CONSOLE_HAS_METHOD (x, selection_exists_p);
|
|
|
1694 }
|
|
|
1695
|
|
|
1696 void
|
|
|
1697 vars_of_xselect (void)
|
|
|
1698 {
|
|
|
1699 #ifdef CUT_BUFFER_SUPPORT
|
|
|
1700 cut_buffers_initialized = 0;
|
|
|
1701 Fprovide (intern ("cut-buffer"));
|
|
|
1702 #endif
|
|
|
1703
|
|
|
1704 reading_selection_reply = 0;
|
|
|
1705 reading_which_selection = 0;
|
|
|
1706 selection_reply_timed_out = 0;
|
|
|
1707 for_whom_the_bell_tolls = 0;
|
|
|
1708 prop_location_tick = 0;
|
|
|
1709
|
|
|
1710 DEFVAR_LISP ("x-sent-selection-hooks", &Vx_sent_selection_hooks /*
|
|
|
1711 A function or functions to be called after we have responded to some
|
|
|
1712 other client's request for the value of a selection that we own. The
|
|
|
1713 function(s) will be called with four arguments:
|
|
|
1714 - the name of the selection (typically PRIMARY, SECONDARY, or CLIPBOARD);
|
|
|
1715 - the name of the selection-type which we were requested to convert the
|
|
|
1716 selection into before sending (for example, STRING or LENGTH);
|
|
|
1717 - and whether we successfully transmitted the selection.
|
|
|
1718 We might have failed (and declined the request) for any number of reasons,
|
|
|
1719 including being asked for a selection that we no longer own, or being asked
|
|
|
1720 to convert into a type that we don't know about or that is inappropriate.
|
|
|
1721 This hook doesn't let you change the behavior of emacs's selection replies,
|
|
|
1722 it merely informs you that they have happened.
|
|
|
1723 */ );
|
|
|
1724 Vx_sent_selection_hooks = Qunbound;
|
|
|
1725
|
|
|
1726 DEFVAR_INT ("x-selection-timeout", &x_selection_timeout /*
|
|
|
1727 If the selection owner doesn't reply in this many seconds, we give up.
|
|
|
1728 A value of 0 means wait as long as necessary. This is initialized from the
|
|
|
1729 \"*selectionTimeout\" resource (which is expressed in milliseconds).
|
|
|
1730 */ );
|
|
|
1731 x_selection_timeout = 0;
|
|
|
1732 }
|
|
|
1733
|
|
|
1734 void
|
|
|
1735 Xatoms_of_xselect (struct device *d)
|
|
|
1736 {
|
|
|
1737 Display *D = DEVICE_X_DISPLAY (d);
|
|
|
1738
|
|
|
1739 /* Non-predefined atoms that we might end up using a lot */
|
|
|
1740 DEVICE_XATOM_CLIPBOARD (d) = XInternAtom (D, "CLIPBOARD", False);
|
|
|
1741 DEVICE_XATOM_TIMESTAMP (d) = XInternAtom (D, "TIMESTAMP", False);
|
|
|
1742 DEVICE_XATOM_TEXT (d) = XInternAtom (D, "TEXT", False);
|
|
|
1743 DEVICE_XATOM_DELETE (d) = XInternAtom (D, "DELETE", False);
|
|
|
1744 DEVICE_XATOM_MULTIPLE (d) = XInternAtom (D, "MULTIPLE", False);
|
|
|
1745 DEVICE_XATOM_INCR (d) = XInternAtom (D, "INCR", False);
|
|
|
1746 DEVICE_XATOM_TARGETS (d) = XInternAtom (D, "TARGETS", False);
|
|
|
1747 DEVICE_XATOM_NULL (d) = XInternAtom (D, "NULL", False);
|
|
|
1748 DEVICE_XATOM_ATOM_PAIR (d) = XInternAtom (D, "ATOM_PAIR", False);
|
|
|
1749 DEVICE_XATOM_COMPOUND_TEXT (d) = XInternAtom (D, "COMPOUND_TEXT", False);
|
|
|
1750 DEVICE_XATOM_EMACS_TMP (d) = XInternAtom (D, "_EMACS_TMP_", False);
|
|
|
1751 }
|
