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428
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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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456
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49 Window selecting_window,
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50 int owned_p);
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428
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51 #endif
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52
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53 #define CUT_BUFFER_SUPPORT
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54
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55 #ifdef CUT_BUFFER_SUPPORT
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56 Lisp_Object QCUT_BUFFER0, QCUT_BUFFER1, QCUT_BUFFER2, QCUT_BUFFER3,
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57 QCUT_BUFFER4, QCUT_BUFFER5, QCUT_BUFFER6, QCUT_BUFFER7;
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58 #endif
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59
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60 Lisp_Object Vx_sent_selection_hooks;
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61
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62 /* If this is a smaller number than the max-request-size of the display,
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63 emacs will use INCR selection transfer when the selection is larger
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64 than this. The max-request-size is usually around 64k, so if you want
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65 emacs to use incremental selection transfers when the selection is
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66 smaller than that, set this. I added this mostly for debugging the
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67 incremental transfer stuff, but it might improve server performance.
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68 */
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69 #define MAX_SELECTION_QUANTUM 0xFFFFFF
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70
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71 #define SELECTION_QUANTUM(dpy) ((XMaxRequestSize (dpy) << 2) - 100)
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72
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73 /* If the selection owner takes too long to reply to a selection request,
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74 we give up on it. This is in seconds (0 = no timeout).
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75 */
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458
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76 Fixnum x_selection_timeout;
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428
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77
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456
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78 /* Enable motif selection optimizations. */
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79 int x_selection_strict_motif_ownership;
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80
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428
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81
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82 /* Utility functions */
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83
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84 static void lisp_data_to_selection_data (struct device *,
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85 Lisp_Object obj,
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86 unsigned char **data_ret,
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87 Atom *type_ret,
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88 unsigned int *size_ret,
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89 int *format_ret);
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90 static Lisp_Object selection_data_to_lisp_data (struct device *,
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444
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91 Extbyte *data,
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428
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92 size_t size,
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93 Atom type,
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94 int format);
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95 static Lisp_Object x_get_window_property_as_lisp_data (Display *,
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96 Window,
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97 Atom property,
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98 Lisp_Object target_type,
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99 Atom selection_atom);
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100
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101 static int expect_property_change (Display *, Window, Atom prop, int state);
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102 static void wait_for_property_change (long);
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103 static void unexpect_property_change (int);
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104 static int waiting_for_other_props_on_window (Display *, Window);
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105
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106 /* This converts a Lisp symbol to a server Atom, avoiding a server
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107 roundtrip whenever possible.
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108 */
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109 static Atom
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110 symbol_to_x_atom (struct device *d, Lisp_Object sym, int only_if_exists)
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111 {
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112 Display *display = DEVICE_X_DISPLAY (d);
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113
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114 if (NILP (sym)) return XA_PRIMARY;
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115 if (EQ (sym, Qt)) return XA_SECONDARY;
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116 if (EQ (sym, QPRIMARY)) return XA_PRIMARY;
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117 if (EQ (sym, QSECONDARY)) return XA_SECONDARY;
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118 if (EQ (sym, QSTRING)) return XA_STRING;
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119 if (EQ (sym, QINTEGER)) return XA_INTEGER;
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120 if (EQ (sym, QATOM)) return XA_ATOM;
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121 if (EQ (sym, QCLIPBOARD)) return DEVICE_XATOM_CLIPBOARD (d);
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122 if (EQ (sym, QTIMESTAMP)) return DEVICE_XATOM_TIMESTAMP (d);
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123 if (EQ (sym, QTEXT)) return DEVICE_XATOM_TEXT (d);
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124 if (EQ (sym, QDELETE)) return DEVICE_XATOM_DELETE (d);
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125 if (EQ (sym, QMULTIPLE)) return DEVICE_XATOM_MULTIPLE (d);
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126 if (EQ (sym, QINCR)) return DEVICE_XATOM_INCR (d);
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127 if (EQ (sym, QEMACS_TMP)) return DEVICE_XATOM_EMACS_TMP (d);
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128 if (EQ (sym, QTARGETS)) return DEVICE_XATOM_TARGETS (d);
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129 if (EQ (sym, QNULL)) return DEVICE_XATOM_NULL (d);
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130 if (EQ (sym, QATOM_PAIR)) return DEVICE_XATOM_ATOM_PAIR (d);
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131 if (EQ (sym, QCOMPOUND_TEXT)) return DEVICE_XATOM_COMPOUND_TEXT (d);
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132
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133 #ifdef CUT_BUFFER_SUPPORT
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134 if (EQ (sym, QCUT_BUFFER0)) return XA_CUT_BUFFER0;
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135 if (EQ (sym, QCUT_BUFFER1)) return XA_CUT_BUFFER1;
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136 if (EQ (sym, QCUT_BUFFER2)) return XA_CUT_BUFFER2;
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137 if (EQ (sym, QCUT_BUFFER3)) return XA_CUT_BUFFER3;
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138 if (EQ (sym, QCUT_BUFFER4)) return XA_CUT_BUFFER4;
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139 if (EQ (sym, QCUT_BUFFER5)) return XA_CUT_BUFFER5;
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140 if (EQ (sym, QCUT_BUFFER6)) return XA_CUT_BUFFER6;
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141 if (EQ (sym, QCUT_BUFFER7)) return XA_CUT_BUFFER7;
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142 #endif /* CUT_BUFFER_SUPPORT */
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143
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144 {
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442
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145 const char *nameext;
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146 LISP_STRING_TO_EXTERNAL (Fsymbol_name (sym), nameext, Qctext);
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428
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147 return XInternAtom (display, nameext, only_if_exists ? True : False);
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148 }
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149 }
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150
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151
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152 /* This converts a server Atom to a Lisp symbol, avoiding server roundtrips
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153 and calls to intern whenever possible.
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154 */
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155 static Lisp_Object
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156 x_atom_to_symbol (struct device *d, Atom atom)
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157 {
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158 Display *display = DEVICE_X_DISPLAY (d);
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159
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160 if (! atom) return Qnil;
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161 if (atom == XA_PRIMARY) return QPRIMARY;
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162 if (atom == XA_SECONDARY) return QSECONDARY;
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163 if (atom == XA_STRING) return QSTRING;
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164 if (atom == XA_INTEGER) return QINTEGER;
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165 if (atom == XA_ATOM) return QATOM;
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166 if (atom == DEVICE_XATOM_CLIPBOARD (d)) return QCLIPBOARD;
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167 if (atom == DEVICE_XATOM_TIMESTAMP (d)) return QTIMESTAMP;
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168 if (atom == DEVICE_XATOM_TEXT (d)) return QTEXT;
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169 if (atom == DEVICE_XATOM_DELETE (d)) return QDELETE;
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170 if (atom == DEVICE_XATOM_MULTIPLE (d)) return QMULTIPLE;
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171 if (atom == DEVICE_XATOM_INCR (d)) return QINCR;
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172 if (atom == DEVICE_XATOM_EMACS_TMP (d)) return QEMACS_TMP;
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173 if (atom == DEVICE_XATOM_TARGETS (d)) return QTARGETS;
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174 if (atom == DEVICE_XATOM_NULL (d)) return QNULL;
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175 if (atom == DEVICE_XATOM_ATOM_PAIR (d)) return QATOM_PAIR;
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176 if (atom == DEVICE_XATOM_COMPOUND_TEXT (d)) return QCOMPOUND_TEXT;
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177
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178 #ifdef CUT_BUFFER_SUPPORT
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179 if (atom == XA_CUT_BUFFER0) return QCUT_BUFFER0;
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180 if (atom == XA_CUT_BUFFER1) return QCUT_BUFFER1;
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181 if (atom == XA_CUT_BUFFER2) return QCUT_BUFFER2;
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182 if (atom == XA_CUT_BUFFER3) return QCUT_BUFFER3;
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183 if (atom == XA_CUT_BUFFER4) return QCUT_BUFFER4;
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184 if (atom == XA_CUT_BUFFER5) return QCUT_BUFFER5;
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185 if (atom == XA_CUT_BUFFER6) return QCUT_BUFFER6;
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186 if (atom == XA_CUT_BUFFER7) return QCUT_BUFFER7;
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187 #endif
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188
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189 {
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440
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190 char *intstr;
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428
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191 char *str = XGetAtomName (display, atom);
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192
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193 if (! str) return Qnil;
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194
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440
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195 TO_INTERNAL_FORMAT (C_STRING, str,
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196 C_STRING_ALLOCA, intstr,
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197 Qctext);
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428
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198 XFree (str);
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440
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199 return intern (intstr);
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428
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200 }
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201 }
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202
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203
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204 /* Do protocol to assert ourself as a selection owner.
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205 */
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206 static Lisp_Object
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442
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207 x_own_selection (Lisp_Object selection_name, Lisp_Object selection_value,
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456
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208 Lisp_Object how_to_add, Lisp_Object selection_type,
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209 int owned_p)
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428
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210 {
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211 struct device *d = decode_x_device (Qnil);
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212 Display *display = DEVICE_X_DISPLAY (d);
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213 struct frame *sel_frame = selected_frame ();
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214 Window selecting_window = XtWindow (FRAME_X_TEXT_WIDGET (sel_frame));
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215 Lisp_Object selection_time;
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216 /* Use the time of the last-read mouse or keyboard event.
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217 For selection purposes, we use this as a sleazy way of knowing what the
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218 current time is in server-time. This assumes that the most recently read
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219 mouse or keyboard event has something to do with the assertion of the
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220 selection, which is probably true.
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221 */
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222 Time thyme = DEVICE_X_MOUSE_TIMESTAMP (d);
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223 Atom selection_atom;
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224
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225 CHECK_SYMBOL (selection_name);
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226 selection_atom = symbol_to_x_atom (d, selection_name, 0);
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227
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228 XSetSelectionOwner (display, selection_atom, selecting_window, thyme);
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229
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230 /* We do NOT use time_to_lisp() here any more, like we used to.
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231 That assumed equivalence of time_t and Time, which is not
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232 necessarily the case (e.g. under OSF on the Alphas, where
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233 Time is a 64-bit quantity and time_t is a 32-bit quantity).
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442
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234
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428
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235 Opaque pointers are the clean way to go here.
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236 */
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440
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237 selection_time = make_opaque (&thyme, sizeof (thyme));
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428
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238
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239 #ifdef MOTIF_CLIPBOARDS
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240 hack_motif_clipboard_selection (selection_atom, selection_value,
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456
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241 thyme, display, selecting_window, owned_p);
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428
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242 #endif
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243 return selection_time;
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244 }
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245
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246 #ifdef MOTIF_CLIPBOARDS /* Bend over baby. Take it and like it. */
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247
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248 # ifdef MOTIF_INCREMENTAL_CLIPBOARDS_WORK
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249 static void motif_clipboard_cb ();
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250 # endif
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251
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252 static void
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253 hack_motif_clipboard_selection (Atom selection_atom,
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254 Lisp_Object selection_value,
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255 Time thyme,
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256 Display *display,
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456
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257 Window selecting_window,
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258 int owned_p)
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428
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259 {
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260 struct device *d = get_device_from_display (display);
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261 /* Those Motif wankers can't be bothered to follow the ICCCM, and do
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262 their own non-Xlib non-Xt clipboard processing. So we have to do
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263 this so that linked-in Motif widgets don't get themselves wedged.
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264 */
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265 if (selection_atom == DEVICE_XATOM_CLIPBOARD (d)
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266 && STRINGP (selection_value)
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267
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268 /* If we already own the clipboard, don't own it again in the Motif
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269 way. This might lose in some subtle way, since the timestamp won't
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270 be current, but owning the selection on the Motif way does a
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271 SHITLOAD of X protocol, and it makes killing text be incredibly
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272 slow when using an X terminal. ARRRRGGGHHH!!!!
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273 */
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274 /* No, this is no good, because then Motif text fields don't bother
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275 to look up the new value, and you can't Copy from a buffer, Paste
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276 into a text field, then Copy something else from the buffer and
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277 paste it into the text field -- it pastes the first thing again. */
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456
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278 && (!owned_p
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279 /* Selectively re-enable this because for most users its
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280 just too painful - especially over a remote link. */
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281 || x_selection_strict_motif_ownership)
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428
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282 )
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283 {
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284 #ifdef MOTIF_INCREMENTAL_CLIPBOARDS_WORK
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285 Widget widget = FRAME_X_TEXT_WIDGET (selected_frame());
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286 #endif
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287 long itemid;
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288 #if XmVersion >= 1002
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289 long dataid;
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290 #else
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291 int dataid; /* 1.2 wants long, but 1.1.5 wants int... */
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292 #endif
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293 XmString fmh;
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294 String encoding = "STRING";
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444
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295 const Bufbyte *data = XSTRING_DATA (selection_value);
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296 Bytecount bytes = XSTRING_LENGTH (selection_value);
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428
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297
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298 #ifdef MULE
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299 {
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300 enum { ASCII, LATIN_1, WORLD } chartypes = ASCII;
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442
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301 const Bufbyte *ptr = data, *end = ptr + bytes;
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428
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302 /* Optimize for the common ASCII case */
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303 while (ptr <= end)
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304 {
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305 if (BYTE_ASCII_P (*ptr))
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306 {
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307 ptr++;
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308 continue;
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309 }
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310
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311 if ((*ptr) == LEADING_BYTE_LATIN_ISO8859_1 ||
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312 (*ptr) == LEADING_BYTE_CONTROL_1)
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313 {
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314 chartypes = LATIN_1;
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315 ptr += 2;
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316 continue;
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317 }
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318
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319 chartypes = WORLD;
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320 break;
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321 }
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322
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323 if (chartypes == LATIN_1)
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440
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324 TO_EXTERNAL_FORMAT (LISP_STRING, selection_value,
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325 ALLOCA, (data, bytes),
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326 Qbinary);
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428
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327 else if (chartypes == WORLD)
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328 {
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440
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329 TO_EXTERNAL_FORMAT (LISP_STRING, selection_value,
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330 ALLOCA, (data, bytes),
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331 Qctext);
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428
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332 encoding = "COMPOUND_TEXT";
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333 }
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334 }
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335 #endif /* MULE */
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336
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337 fmh = XmStringCreateLtoR ("Clipboard", XmSTRING_DEFAULT_CHARSET);
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338 while (ClipboardSuccess !=
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339 XmClipboardStartCopy (display, selecting_window, fmh, thyme,
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340 #ifdef MOTIF_INCREMENTAL_CLIPBOARDS_WORK
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341 widget, motif_clipboard_cb,
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342 #else
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343 0, NULL,
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344 #endif
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345 &itemid))
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346 ;
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347 XmStringFree (fmh);
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348 while (ClipboardSuccess !=
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349 XmClipboardCopy (display, selecting_window, itemid, encoding,
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350 #ifdef MOTIF_INCREMENTAL_CLIPBOARDS_WORK
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351 /* O'Reilly examples say size can be 0,
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352 but this clearly is not the case. */
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353 0, bytes, (int) selecting_window, /* private id */
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354 #else /* !MOTIF_INCREMENTAL_CLIPBOARDS_WORK */
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355 (XtPointer) data, bytes, 0,
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356 #endif /* !MOTIF_INCREMENTAL_CLIPBOARDS_WORK */
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357 &dataid))
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358 ;
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359 while (ClipboardSuccess !=
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360 XmClipboardEndCopy (display, selecting_window, itemid))
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361 ;
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362 }
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363 }
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364
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365 # ifdef MOTIF_INCREMENTAL_CLIPBOARDS_WORK
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366 /* I tried to treat the clipboard like a real selection, and not send
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|
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367 the data until it was requested, but it looks like that just doesn't
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|
|
368 work at all unless the selection owner and requestor are in different
|
|
|
369 processes. From reading the Motif source, it looks like they never
|
|
|
370 even considered having two widgets in the same application transfer
|
|
|
371 data between each other using "by-name" clipboard values. What a
|
|
|
372 bunch of fuckups.
|
|
|
373 */
|
|
|
374 static void
|
|
|
375 motif_clipboard_cb (Widget widget, int *data_id, int *private_id, int *reason)
|
|
|
376 {
|
|
|
377 switch (*reason)
|
|
|
378 {
|
|
|
379 case XmCR_CLIPBOARD_DATA_REQUEST:
|
|
|
380 {
|
|
|
381 Display *dpy = XtDisplay (widget);
|
|
|
382 Window window = (Window) *private_id;
|
|
442
|
383 Lisp_Object selection = select_convert_out (QCLIPBOARD, Qnil, Qnil);
|
|
|
384
|
|
|
385 /* Whichever lazy git wrote this originally just called abort()
|
|
|
386 when anything didn't go their way... */
|
|
|
387
|
|
|
388 /* Try some other text types */
|
|
|
389 if (NILP (selection))
|
|
|
390 selection = select_convert_out (QCLIPBOARD, QSTRING, Qnil);
|
|
|
391 if (NILP (selection))
|
|
|
392 selection = select_convert_out (QCLIPBOARD, QTEXT, Qnil);
|
|
|
393 if (NILP (selection))
|
|
|
394 selection = select_convert_out (QCLIPBOARD, QCOMPOUND_TEXT, Qnil);
|
|
|
395
|
|
|
396 if (CONSP (selection) && SYMBOLP (XCAR (selection))
|
|
|
397 && (EQ (XCAR (selection), QSTRING)
|
|
|
398 || EQ (XCAR (selection), QTEXT)
|
|
|
399 || EQ (XCAR (selection), QCOMPOUND_TEXT)))
|
|
|
400 selection = XCDR (selection);
|
|
|
401
|
|
|
402 if (NILP (selection))
|
|
|
403 signal_error (Qselection_conversion_error,
|
|
|
404 build_string ("no selection"));
|
|
|
405
|
|
|
406 if (!STRINGP (selection))
|
|
|
407 signal_error (Qselection_conversion_error,
|
|
|
408 build_string ("couldn't convert selection to string"));
|
|
|
409
|
|
|
410
|
|
428
|
411 XmClipboardCopyByName (dpy, window, *data_id,
|
|
|
412 (char *) XSTRING_DATA (selection),
|
|
|
413 XSTRING_LENGTH (selection) + 1,
|
|
|
414 0);
|
|
|
415 }
|
|
|
416 break;
|
|
|
417 case XmCR_CLIPBOARD_DATA_DELETE:
|
|
|
418 default:
|
|
|
419 /* don't need to free anything */
|
|
|
420 break;
|
|
|
421 }
|
|
|
422 }
|
|
|
423 # endif /* MOTIF_INCREMENTAL_CLIPBOARDS_WORK */
|
|
|
424 #endif /* MOTIF_CLIPBOARDS */
|
|
|
425
|
|
|
426
|
|
|
427
|
|
|
428
|
|
|
429 /* Send a SelectionNotify event to the requestor with property=None, meaning
|
|
|
430 we were unable to do what they wanted.
|
|
|
431 */
|
|
|
432 static void
|
|
|
433 x_decline_selection_request (XSelectionRequestEvent *event)
|
|
|
434 {
|
|
|
435 XSelectionEvent reply;
|
|
|
436 reply.type = SelectionNotify;
|
|
|
437 reply.display = event->display;
|
|
|
438 reply.requestor = event->requestor;
|
|
|
439 reply.selection = event->selection;
|
|
|
440 reply.time = event->time;
|
|
|
441 reply.target = event->target;
|
|
|
442 reply.property = None;
|
|
|
443
|
|
|
444 XSendEvent (reply.display, reply.requestor, False, 0L, (XEvent *) &reply);
|
|
|
445 XFlush (reply.display);
|
|
|
446 }
|
|
|
447
|
|
|
448
|
|
|
449 /* Used as an unwind-protect clause so that, if a selection-converter signals
|
|
|
450 an error, we tell the requestor that we were unable to do what they wanted
|
|
|
451 before we throw to top-level or go into the debugger or whatever.
|
|
|
452 */
|
|
|
453 static Lisp_Object
|
|
|
454 x_selection_request_lisp_error (Lisp_Object closure)
|
|
|
455 {
|
|
|
456 XSelectionRequestEvent *event = (XSelectionRequestEvent *)
|
|
|
457 get_opaque_ptr (closure);
|
|
|
458
|
|
|
459 free_opaque_ptr (closure);
|
|
|
460 if (event->type == 0) /* we set this to mean "completed normally" */
|
|
|
461 return Qnil;
|
|
|
462 x_decline_selection_request (event);
|
|
|
463 return Qnil;
|
|
|
464 }
|
|
|
465
|
|
|
466
|
|
|
467 /* Convert our selection to the requested type, and put that data where the
|
|
|
468 requestor wants it. Then tell them whether we've succeeded.
|
|
|
469 */
|
|
|
470 static void
|
|
|
471 x_reply_selection_request (XSelectionRequestEvent *event, int format,
|
|
|
472 unsigned char *data, int size, Atom type)
|
|
|
473 {
|
|
|
474 /* This function can GC */
|
|
|
475 XSelectionEvent reply;
|
|
|
476 Display *display = event->display;
|
|
|
477 struct device *d = get_device_from_display (display);
|
|
|
478 Window window = event->requestor;
|
|
|
479 int bytes_remaining;
|
|
|
480 int format_bytes = format/8;
|
|
|
481 int max_bytes = SELECTION_QUANTUM (display);
|
|
|
482 if (max_bytes > MAX_SELECTION_QUANTUM) max_bytes = MAX_SELECTION_QUANTUM;
|
|
|
483
|
|
|
484 reply.type = SelectionNotify;
|
|
|
485 reply.display = display;
|
|
|
486 reply.requestor = window;
|
|
|
487 reply.selection = event->selection;
|
|
|
488 reply.time = event->time;
|
|
|
489 reply.target = event->target;
|
|
|
490 reply.property = (event->property == None ? event->target : event->property);
|
|
|
491
|
|
|
492 /* #### XChangeProperty can generate BadAlloc, and we must handle it! */
|
|
|
493
|
|
|
494 /* Store the data on the requested property.
|
|
|
495 If the selection is large, only store the first N bytes of it.
|
|
|
496 */
|
|
|
497 bytes_remaining = size * format_bytes;
|
|
|
498 if (bytes_remaining <= max_bytes)
|
|
|
499 {
|
|
|
500 /* Send all the data at once, with minimal handshaking. */
|
|
|
501 #if 0
|
|
|
502 stderr_out ("\nStoring all %d\n", bytes_remaining);
|
|
|
503 #endif
|
|
|
504 XChangeProperty (display, window, reply.property, type, format,
|
|
|
505 PropModeReplace, data, size);
|
|
|
506 /* At this point, the selection was successfully stored; ack it. */
|
|
|
507 XSendEvent (display, window, False, 0L, (XEvent *) &reply);
|
|
|
508 XFlush (display);
|
|
|
509 }
|
|
|
510 else
|
|
|
511 {
|
|
|
512 /* Send an INCR selection. */
|
|
|
513 int prop_id;
|
|
|
514
|
|
|
515 if (x_window_to_frame (d, window)) /* #### debug */
|
|
|
516 error ("attempt to transfer an INCR to ourself!");
|
|
|
517 #if 0
|
|
|
518 stderr_out ("\nINCR %d\n", bytes_remaining);
|
|
|
519 #endif
|
|
|
520 prop_id = expect_property_change (display, window, reply.property,
|
|
|
521 PropertyDelete);
|
|
|
522
|
|
|
523 XChangeProperty (display, window, reply.property, DEVICE_XATOM_INCR (d),
|
|
|
524 32, PropModeReplace, (unsigned char *)
|
|
|
525 &bytes_remaining, 1);
|
|
|
526 XSelectInput (display, window, PropertyChangeMask);
|
|
|
527 /* Tell 'em the INCR data is there... */
|
|
|
528 XSendEvent (display, window, False, 0L, (XEvent *) &reply);
|
|
|
529 XFlush (display);
|
|
|
530
|
|
|
531 /* First, wait for the requestor to ack by deleting the property.
|
|
|
532 This can run random lisp code (process handlers) or signal.
|
|
|
533 */
|
|
|
534 wait_for_property_change (prop_id);
|
|
|
535
|
|
|
536 while (bytes_remaining)
|
|
|
537 {
|
|
|
538 int i = ((bytes_remaining < max_bytes)
|
|
|
539 ? bytes_remaining
|
|
|
540 : max_bytes);
|
|
|
541 prop_id = expect_property_change (display, window, reply.property,
|
|
|
542 PropertyDelete);
|
|
|
543 #if 0
|
|
|
544 stderr_out (" INCR adding %d\n", i);
|
|
|
545 #endif
|
|
|
546 /* Append the next chunk of data to the property. */
|
|
|
547 XChangeProperty (display, window, reply.property, type, format,
|
|
|
548 PropModeAppend, data, i / format_bytes);
|
|
|
549 bytes_remaining -= i;
|
|
|
550 data += i;
|
|
|
551
|
|
|
552 /* Now wait for the requestor to ack this chunk by deleting the
|
|
|
553 property. This can run random lisp code or signal.
|
|
|
554 */
|
|
|
555 wait_for_property_change (prop_id);
|
|
|
556 }
|
|
|
557 /* Now write a zero-length chunk to the property to tell the requestor
|
|
|
558 that we're done. */
|
|
|
559 #if 0
|
|
|
560 stderr_out (" INCR done\n");
|
|
|
561 #endif
|
|
|
562 if (! waiting_for_other_props_on_window (display, window))
|
|
|
563 XSelectInput (display, window, 0L);
|
|
|
564
|
|
|
565 XChangeProperty (display, window, reply.property, type, format,
|
|
|
566 PropModeReplace, data, 0);
|
|
|
567 }
|
|
|
568 }
|
|
|
569
|
|
|
570
|
|
|
571
|
|
|
572 /* Called from the event-loop in response to a SelectionRequest event.
|
|
|
573 */
|
|
|
574 void
|
|
|
575 x_handle_selection_request (XSelectionRequestEvent *event)
|
|
|
576 {
|
|
|
577 /* This function can GC */
|
|
442
|
578 struct gcpro gcpro1, gcpro2;
|
|
|
579 Lisp_Object temp_obj;
|
|
428
|
580 Lisp_Object selection_symbol;
|
|
|
581 Lisp_Object target_symbol = Qnil;
|
|
|
582 Lisp_Object converted_selection = Qnil;
|
|
|
583 Time local_selection_time;
|
|
|
584 Lisp_Object successful_p = Qnil;
|
|
|
585 int count;
|
|
|
586 struct device *d = get_device_from_display (event->display);
|
|
|
587
|
|
442
|
588 GCPRO2 (converted_selection, target_symbol);
|
|
428
|
589
|
|
|
590 selection_symbol = x_atom_to_symbol (d, event->selection);
|
|
442
|
591 target_symbol = x_atom_to_symbol (d, event->target);
|
|
428
|
592
|
|
442
|
593 #if 0 /* #### MULTIPLE doesn't work yet */
|
|
|
594 if (EQ (target_symbol, QMULTIPLE))
|
|
|
595 target_symbol = fetch_multiple_target (event);
|
|
428
|
596 #endif
|
|
|
597
|
|
442
|
598 temp_obj = Fget_selection_timestamp (selection_symbol);
|
|
|
599
|
|
|
600 if (NILP (temp_obj))
|
|
428
|
601 {
|
|
442
|
602 /* We don't appear to have the selection. */
|
|
428
|
603 x_decline_selection_request (event);
|
|
442
|
604
|
|
428
|
605 goto DONE_LABEL;
|
|
|
606 }
|
|
|
607
|
|
442
|
608 local_selection_time = * (Time *) XOPAQUE_DATA (temp_obj);
|
|
428
|
609
|
|
|
610 if (event->time != CurrentTime &&
|
|
|
611 local_selection_time > event->time)
|
|
|
612 {
|
|
|
613 /* Someone asked for the selection, and we have one, but not the one
|
|
|
614 they're looking for. */
|
|
|
615 x_decline_selection_request (event);
|
|
|
616 goto DONE_LABEL;
|
|
|
617 }
|
|
|
618
|
|
442
|
619 converted_selection = select_convert_out (selection_symbol,
|
|
|
620 target_symbol, Qnil);
|
|
|
621
|
|
|
622 /* #### Is this the right thing to do? I'm no X expert. -- ajh */
|
|
|
623 if (NILP (converted_selection))
|
|
|
624 {
|
|
|
625 /* We don't appear to have a selection in that data type. */
|
|
|
626 x_decline_selection_request (event);
|
|
|
627 goto DONE_LABEL;
|
|
|
628 }
|
|
|
629
|
|
428
|
630 count = specpdl_depth ();
|
|
|
631 record_unwind_protect (x_selection_request_lisp_error,
|
|
|
632 make_opaque_ptr (event));
|
|
|
633
|
|
442
|
634 {
|
|
|
635 unsigned char *data;
|
|
|
636 unsigned int size;
|
|
|
637 int format;
|
|
|
638 Atom type;
|
|
|
639 lisp_data_to_selection_data (d, converted_selection,
|
|
|
640 &data, &type, &size, &format);
|
|
428
|
641
|
|
442
|
642 x_reply_selection_request (event, format, data, size, type);
|
|
|
643 successful_p = Qt;
|
|
|
644 /* Tell x_selection_request_lisp_error() it's cool. */
|
|
|
645 event->type = 0;
|
|
|
646 xfree (data);
|
|
|
647 }
|
|
|
648
|
|
428
|
649 unbind_to (count, Qnil);
|
|
|
650
|
|
|
651 DONE_LABEL:
|
|
|
652
|
|
|
653 UNGCPRO;
|
|
|
654
|
|
|
655 /* Let random lisp code notice that the selection has been asked for. */
|
|
|
656 {
|
|
|
657 Lisp_Object val = Vx_sent_selection_hooks;
|
|
|
658 if (!UNBOUNDP (val) && !NILP (val))
|
|
|
659 {
|
|
442
|
660 Lisp_Object rest;
|
|
428
|
661 if (CONSP (val) && !EQ (XCAR (val), Qlambda))
|
|
|
662 for (rest = val; !NILP (rest); rest = Fcdr (rest))
|
|
442
|
663 call3 (Fcar (rest), selection_symbol, target_symbol, successful_p);
|
|
428
|
664 else
|
|
442
|
665 call3 (val, selection_symbol, target_symbol, successful_p);
|
|
428
|
666 }
|
|
|
667 }
|
|
|
668 }
|
|
|
669
|
|
|
670
|
|
|
671 /* Called from the event-loop in response to a SelectionClear event.
|
|
|
672 */
|
|
|
673 void
|
|
|
674 x_handle_selection_clear (XSelectionClearEvent *event)
|
|
|
675 {
|
|
|
676 Display *display = event->display;
|
|
|
677 struct device *d = get_device_from_display (display);
|
|
|
678 Atom selection = event->selection;
|
|
|
679 Time changed_owner_time = event->time;
|
|
|
680
|
|
442
|
681 Lisp_Object selection_symbol, local_selection_time_lisp;
|
|
428
|
682 Time local_selection_time;
|
|
|
683
|
|
|
684 selection_symbol = x_atom_to_symbol (d, selection);
|
|
|
685
|
|
442
|
686 local_selection_time_lisp = Fget_selection_timestamp (selection_symbol);
|
|
428
|
687
|
|
442
|
688 /* We don't own the selection, so that's fine. */
|
|
|
689 if (NILP (local_selection_time_lisp))
|
|
|
690 return;
|
|
428
|
691
|
|
442
|
692 local_selection_time = * (Time *) XOPAQUE_DATA (local_selection_time_lisp);
|
|
428
|
693
|
|
|
694 /* This SelectionClear is for a selection that we no longer own, so we can
|
|
|
695 disregard it. (That is, we have reasserted the selection since this
|
|
|
696 request was generated.)
|
|
|
697 */
|
|
|
698 if (changed_owner_time != CurrentTime &&
|
|
|
699 local_selection_time > changed_owner_time)
|
|
|
700 return;
|
|
442
|
701
|
|
428
|
702 handle_selection_clear (selection_symbol);
|
|
|
703 }
|
|
|
704
|
|
|
705
|
|
|
706 /* This stuff is so that INCR selections are reentrant (that is, so we can
|
|
|
707 be servicing multiple INCR selection requests simultaneously). I haven't
|
|
|
708 actually tested that yet.
|
|
|
709 */
|
|
|
710
|
|
|
711 static int prop_location_tick;
|
|
|
712
|
|
|
713 static struct prop_location {
|
|
|
714 int tick;
|
|
|
715 Display *display;
|
|
|
716 Window window;
|
|
|
717 Atom property;
|
|
|
718 int desired_state;
|
|
|
719 struct prop_location *next;
|
|
|
720 } *for_whom_the_bell_tolls;
|
|
|
721
|
|
|
722
|
|
|
723 static int
|
|
|
724 property_deleted_p (void *tick)
|
|
|
725 {
|
|
|
726 struct prop_location *rest = for_whom_the_bell_tolls;
|
|
|
727 while (rest)
|
|
|
728 if (rest->tick == (long) tick)
|
|
|
729 return 0;
|
|
|
730 else
|
|
|
731 rest = rest->next;
|
|
|
732 return 1;
|
|
|
733 }
|
|
|
734
|
|
|
735 static int
|
|
|
736 waiting_for_other_props_on_window (Display *display, Window window)
|
|
|
737 {
|
|
|
738 struct prop_location *rest = for_whom_the_bell_tolls;
|
|
|
739 while (rest)
|
|
|
740 if (rest->display == display && rest->window == window)
|
|
|
741 return 1;
|
|
|
742 else
|
|
|
743 rest = rest->next;
|
|
|
744 return 0;
|
|
|
745 }
|
|
|
746
|
|
|
747
|
|
|
748 static int
|
|
|
749 expect_property_change (Display *display, Window window,
|
|
|
750 Atom property, int state)
|
|
|
751 {
|
|
|
752 struct prop_location *pl = xnew (struct prop_location);
|
|
|
753 pl->tick = ++prop_location_tick;
|
|
|
754 pl->display = display;
|
|
|
755 pl->window = window;
|
|
|
756 pl->property = property;
|
|
|
757 pl->desired_state = state;
|
|
|
758 pl->next = for_whom_the_bell_tolls;
|
|
|
759 for_whom_the_bell_tolls = pl;
|
|
|
760 return pl->tick;
|
|
|
761 }
|
|
|
762
|
|
|
763 static void
|
|
|
764 unexpect_property_change (int tick)
|
|
|
765 {
|
|
|
766 struct prop_location *prev = 0, *rest = for_whom_the_bell_tolls;
|
|
|
767 while (rest)
|
|
|
768 {
|
|
|
769 if (rest->tick == tick)
|
|
|
770 {
|
|
|
771 if (prev)
|
|
|
772 prev->next = rest->next;
|
|
|
773 else
|
|
|
774 for_whom_the_bell_tolls = rest->next;
|
|
|
775 xfree (rest);
|
|
|
776 return;
|
|
|
777 }
|
|
|
778 prev = rest;
|
|
|
779 rest = rest->next;
|
|
|
780 }
|
|
|
781 }
|
|
|
782
|
|
|
783 static void
|
|
|
784 wait_for_property_change (long tick)
|
|
|
785 {
|
|
|
786 /* This function can GC */
|
|
|
787 wait_delaying_user_input (property_deleted_p, (void *) tick);
|
|
|
788 }
|
|
|
789
|
|
|
790
|
|
|
791 /* Called from the event-loop in response to a PropertyNotify event.
|
|
|
792 */
|
|
|
793 void
|
|
|
794 x_handle_property_notify (XPropertyEvent *event)
|
|
|
795 {
|
|
|
796 struct prop_location *prev = 0, *rest = for_whom_the_bell_tolls;
|
|
|
797 while (rest)
|
|
|
798 {
|
|
|
799 if (rest->property == event->atom &&
|
|
|
800 rest->window == event->window &&
|
|
|
801 rest->display == event->display &&
|
|
|
802 rest->desired_state == event->state)
|
|
|
803 {
|
|
|
804 #if 0
|
|
|
805 stderr_out ("Saw expected prop-%s on %s\n",
|
|
|
806 (event->state == PropertyDelete ? "delete" : "change"),
|
|
|
807 (char *) string_data (XSYMBOL (x_atom_to_symbol (get_device_from_display (event->display), event->atom))->name);
|
|
|
808 #endif
|
|
|
809 if (prev)
|
|
|
810 prev->next = rest->next;
|
|
|
811 else
|
|
|
812 for_whom_the_bell_tolls = rest->next;
|
|
|
813 xfree (rest);
|
|
|
814 return;
|
|
|
815 }
|
|
|
816 prev = rest;
|
|
|
817 rest = rest->next;
|
|
|
818 }
|
|
|
819 #if 0
|
|
|
820 stderr_out ("Saw UNexpected prop-%s on %s\n",
|
|
|
821 (event->state == PropertyDelete ? "delete" : "change"),
|
|
|
822 (char *) string_data (XSYMBOL (x_atom_to_symbol (get_device_from_display (event->display), event->atom))->name));
|
|
|
823 #endif
|
|
|
824 }
|
|
|
825
|
|
|
826
|
|
|
827
|
|
|
828 #if 0 /* #### MULTIPLE doesn't work yet */
|
|
|
829
|
|
|
830 static Lisp_Object
|
|
|
831 fetch_multiple_target (XSelectionRequestEvent *event)
|
|
|
832 {
|
|
|
833 /* This function can GC */
|
|
|
834 Display *display = event->display;
|
|
|
835 Window window = event->requestor;
|
|
|
836 Atom target = event->target;
|
|
|
837 Atom selection_atom = event->selection;
|
|
|
838 int result;
|
|
|
839
|
|
|
840 return
|
|
|
841 Fcons (QMULTIPLE,
|
|
|
842 x_get_window_property_as_lisp_data (display, window, target,
|
|
|
843 QMULTIPLE,
|
|
|
844 selection_atom));
|
|
|
845 }
|
|
|
846
|
|
|
847 static Lisp_Object
|
|
|
848 copy_multiple_data (Lisp_Object obj)
|
|
|
849 {
|
|
|
850 Lisp_Object vec;
|
|
|
851 int i;
|
|
|
852 int len;
|
|
|
853 if (CONSP (obj))
|
|
|
854 return Fcons (XCAR (obj), copy_multiple_data (XCDR (obj)));
|
|
|
855
|
|
|
856 CHECK_VECTOR (obj);
|
|
|
857 len = XVECTOR_LENGTH (obj);
|
|
|
858 vec = make_vector (len, Qnil);
|
|
|
859 for (i = 0; i < len; i++)
|
|
|
860 {
|
|
|
861 Lisp_Object vec2 = XVECTOR_DATA (obj) [i];
|
|
|
862 CHECK_VECTOR (vec2);
|
|
|
863 if (XVECTOR_LENGTH (vec2) != 2)
|
|
|
864 signal_error (Qerror, list2 (build_string
|
|
|
865 ("vectors must be of length 2"),
|
|
|
866 vec2));
|
|
|
867 XVECTOR_DATA (vec) [i] = make_vector (2, Qnil);
|
|
|
868 XVECTOR_DATA (XVECTOR_DATA (vec) [i]) [0] = XVECTOR_DATA (vec2) [0];
|
|
|
869 XVECTOR_DATA (XVECTOR_DATA (vec) [i]) [1] = XVECTOR_DATA (vec2) [1];
|
|
|
870 }
|
|
|
871 return vec;
|
|
|
872 }
|
|
|
873
|
|
|
874 #endif /* 0 */
|
|
|
875
|
|
|
876
|
|
|
877 static Window reading_selection_reply;
|
|
|
878 static Atom reading_which_selection;
|
|
|
879 static int selection_reply_timed_out;
|
|
|
880
|
|
|
881 static int
|
|
|
882 selection_reply_done (void *ignore)
|
|
|
883 {
|
|
|
884 return !reading_selection_reply;
|
|
|
885 }
|
|
|
886
|
|
|
887 static Lisp_Object Qx_selection_reply_timeout_internal;
|
|
|
888
|
|
|
889 DEFUN ("x-selection-reply-timeout-internal", Fx_selection_reply_timeout_internal,
|
|
|
890 1, 1, 0, /*
|
|
|
891 */
|
|
|
892 (arg))
|
|
|
893 {
|
|
|
894 selection_reply_timed_out = 1;
|
|
|
895 reading_selection_reply = 0;
|
|
|
896 return Qnil;
|
|
|
897 }
|
|
|
898
|
|
|
899
|
|
|
900 /* Do protocol to read selection-data from the server.
|
|
|
901 Converts this to lisp data and returns it.
|
|
|
902 */
|
|
|
903 static Lisp_Object
|
|
|
904 x_get_foreign_selection (Lisp_Object selection_symbol, Lisp_Object target_type)
|
|
|
905 {
|
|
|
906 /* This function can GC */
|
|
|
907 struct device *d = decode_x_device (Qnil);
|
|
|
908 Display *display = DEVICE_X_DISPLAY (d);
|
|
|
909 struct frame *sel_frame = selected_frame ();
|
|
|
910 Window requestor_window = XtWindow (FRAME_X_TEXT_WIDGET (sel_frame));
|
|
|
911 Time requestor_time = DEVICE_X_MOUSE_TIMESTAMP (d);
|
|
|
912 Atom target_property = DEVICE_XATOM_EMACS_TMP (d);
|
|
|
913 Atom selection_atom = symbol_to_x_atom (d, selection_symbol, 0);
|
|
|
914 int speccount;
|
|
|
915 Atom type_atom = symbol_to_x_atom (d, (CONSP (target_type) ?
|
|
|
916 XCAR (target_type) : target_type), 0);
|
|
|
917
|
|
|
918 XConvertSelection (display, selection_atom, type_atom, target_property,
|
|
|
919 requestor_window, requestor_time);
|
|
|
920
|
|
|
921 /* Block until the reply has been read. */
|
|
|
922 reading_selection_reply = requestor_window;
|
|
|
923 reading_which_selection = selection_atom;
|
|
|
924 selection_reply_timed_out = 0;
|
|
|
925
|
|
|
926 speccount = specpdl_depth ();
|
|
|
927
|
|
|
928 /* add a timeout handler */
|
|
|
929 if (x_selection_timeout > 0)
|
|
|
930 {
|
|
|
931 Lisp_Object id = Fadd_timeout (make_int (x_selection_timeout),
|
|
|
932 Qx_selection_reply_timeout_internal,
|
|
|
933 Qnil, Qnil);
|
|
|
934 record_unwind_protect (Fdisable_timeout, id);
|
|
|
935 }
|
|
|
936
|
|
|
937 /* This is ^Gable */
|
|
|
938 wait_delaying_user_input (selection_reply_done, 0);
|
|
|
939
|
|
|
940 if (selection_reply_timed_out)
|
|
|
941 error ("timed out waiting for reply from selection owner");
|
|
|
942
|
|
|
943 unbind_to (speccount, Qnil);
|
|
|
944
|
|
|
945 /* otherwise, the selection is waiting for us on the requested property. */
|
|
442
|
946
|
|
|
947 return select_convert_in (selection_symbol,
|
|
|
948 target_type,
|
|
|
949 x_get_window_property_as_lisp_data(display,
|
|
|
950 requestor_window,
|
|
|
951 target_property,
|
|
|
952 target_type,
|
|
|
953 selection_atom));
|
|
428
|
954 }
|
|
|
955
|
|
|
956
|
|
|
957 static void
|
|
|
958 x_get_window_property (Display *display, Window window, Atom property,
|
|
444
|
959 Extbyte **data_ret, int *bytes_ret,
|
|
428
|
960 Atom *actual_type_ret, int *actual_format_ret,
|
|
|
961 unsigned long *actual_size_ret, int delete_p)
|
|
|
962 {
|
|
444
|
963 size_t total_size;
|
|
428
|
964 unsigned long bytes_remaining;
|
|
|
965 int offset = 0;
|
|
|
966 unsigned char *tmp_data = 0;
|
|
|
967 int result;
|
|
|
968 int buffer_size = SELECTION_QUANTUM (display);
|
|
|
969 if (buffer_size > MAX_SELECTION_QUANTUM) buffer_size = MAX_SELECTION_QUANTUM;
|
|
|
970
|
|
|
971 /* First probe the thing to find out how big it is. */
|
|
|
972 result = XGetWindowProperty (display, window, property,
|
|
|
973 0, 0, False, AnyPropertyType,
|
|
|
974 actual_type_ret, actual_format_ret,
|
|
|
975 actual_size_ret,
|
|
|
976 &bytes_remaining, &tmp_data);
|
|
|
977 if (result != Success)
|
|
|
978 {
|
|
|
979 *data_ret = 0;
|
|
|
980 *bytes_ret = 0;
|
|
|
981 return;
|
|
|
982 }
|
|
|
983 XFree ((char *) tmp_data);
|
|
|
984
|
|
|
985 if (*actual_type_ret == None || *actual_format_ret == 0)
|
|
|
986 {
|
|
|
987 if (delete_p) XDeleteProperty (display, window, property);
|
|
|
988 *data_ret = 0;
|
|
|
989 *bytes_ret = 0;
|
|
|
990 return;
|
|
|
991 }
|
|
|
992
|
|
|
993 total_size = bytes_remaining + 1;
|
|
444
|
994 *data_ret = (Extbyte *) xmalloc (total_size);
|
|
428
|
995
|
|
|
996 /* Now read, until we've gotten it all. */
|
|
|
997 while (bytes_remaining)
|
|
|
998 {
|
|
|
999 #if 0
|
|
|
1000 int last = bytes_remaining;
|
|
|
1001 #endif
|
|
|
1002 result =
|
|
|
1003 XGetWindowProperty (display, window, property,
|
|
|
1004 offset/4, buffer_size/4,
|
|
|
1005 (delete_p ? True : False),
|
|
|
1006 AnyPropertyType,
|
|
|
1007 actual_type_ret, actual_format_ret,
|
|
|
1008 actual_size_ret, &bytes_remaining, &tmp_data);
|
|
|
1009 #if 0
|
|
|
1010 stderr_out ("<< read %d\n", last-bytes_remaining);
|
|
|
1011 #endif
|
|
|
1012 /* If this doesn't return Success at this point, it means that
|
|
|
1013 some clod deleted the selection while we were in the midst of
|
|
|
1014 reading it. Deal with that, I guess....
|
|
|
1015 */
|
|
|
1016 if (result != Success) break;
|
|
|
1017 *actual_size_ret *= *actual_format_ret / 8;
|
|
|
1018 memcpy ((*data_ret) + offset, tmp_data, *actual_size_ret);
|
|
|
1019 offset += *actual_size_ret;
|
|
|
1020 XFree ((char *) tmp_data);
|
|
|
1021 }
|
|
|
1022 *bytes_ret = offset;
|
|
|
1023 }
|
|
|
1024
|
|
|
1025
|
|
|
1026 static void
|
|
|
1027 receive_incremental_selection (Display *display, Window window, Atom property,
|
|
|
1028 /* this one is for error messages only */
|
|
|
1029 Lisp_Object target_type,
|
|
|
1030 unsigned int min_size_bytes,
|
|
444
|
1031 Extbyte **data_ret, int *size_bytes_ret,
|
|
428
|
1032 Atom *type_ret, int *format_ret,
|
|
|
1033 unsigned long *size_ret)
|
|
|
1034 {
|
|
|
1035 /* This function can GC */
|
|
|
1036 int offset = 0;
|
|
|
1037 int prop_id;
|
|
|
1038 *size_bytes_ret = min_size_bytes;
|
|
444
|
1039 *data_ret = (Extbyte *) xmalloc (*size_bytes_ret);
|
|
428
|
1040 #if 0
|
|
|
1041 stderr_out ("\nread INCR %d\n", min_size_bytes);
|
|
|
1042 #endif
|
|
|
1043 /* At this point, we have read an INCR property, and deleted it (which
|
|
|
1044 is how we ack its receipt: the sending window will be selecting
|
|
|
1045 PropertyNotify events on our window to notice this).
|
|
|
1046
|
|
|
1047 Now, we must loop, waiting for the sending window to put a value on
|
|
|
1048 that property, then reading the property, then deleting it to ack.
|
|
|
1049 We are done when the sender places a property of length 0.
|
|
|
1050 */
|
|
|
1051 prop_id = expect_property_change (display, window, property,
|
|
|
1052 PropertyNewValue);
|
|
|
1053 while (1)
|
|
|
1054 {
|
|
444
|
1055 Extbyte *tmp_data;
|
|
428
|
1056 int tmp_size_bytes;
|
|
|
1057 wait_for_property_change (prop_id);
|
|
|
1058 /* expect it again immediately, because x_get_window_property may
|
|
|
1059 .. no it won't, I don't get it.
|
|
|
1060 .. Ok, I get it now, the Xt code that implements INCR is broken.
|
|
|
1061 */
|
|
|
1062 prop_id = expect_property_change (display, window, property,
|
|
|
1063 PropertyNewValue);
|
|
|
1064 x_get_window_property (display, window, property,
|
|
|
1065 &tmp_data, &tmp_size_bytes,
|
|
|
1066 type_ret, format_ret, size_ret, 1);
|
|
|
1067
|
|
|
1068 if (tmp_size_bytes == 0) /* we're done */
|
|
|
1069 {
|
|
|
1070 #if 0
|
|
|
1071 stderr_out (" read INCR done\n");
|
|
|
1072 #endif
|
|
|
1073 unexpect_property_change (prop_id);
|
|
|
1074 if (tmp_data) xfree (tmp_data);
|
|
|
1075 break;
|
|
|
1076 }
|
|
|
1077 #if 0
|
|
|
1078 stderr_out (" read INCR %d\n", tmp_size_bytes);
|
|
|
1079 #endif
|
|
|
1080 if (*size_bytes_ret < offset + tmp_size_bytes)
|
|
|
1081 {
|
|
|
1082 #if 0
|
|
|
1083 stderr_out (" read INCR realloc %d -> %d\n",
|
|
|
1084 *size_bytes_ret, offset + tmp_size_bytes);
|
|
|
1085 #endif
|
|
|
1086 *size_bytes_ret = offset + tmp_size_bytes;
|
|
444
|
1087 *data_ret = (Extbyte *) xrealloc (*data_ret, *size_bytes_ret);
|
|
428
|
1088 }
|
|
|
1089 memcpy ((*data_ret) + offset, tmp_data, tmp_size_bytes);
|
|
|
1090 offset += tmp_size_bytes;
|
|
|
1091 xfree (tmp_data);
|
|
|
1092 }
|
|
|
1093 }
|
|
|
1094
|
|
|
1095
|
|
|
1096 static Lisp_Object
|
|
|
1097 x_get_window_property_as_lisp_data (Display *display,
|
|
|
1098 Window window,
|
|
|
1099 Atom property,
|
|
|
1100 /* next two for error messages only */
|
|
|
1101 Lisp_Object target_type,
|
|
|
1102 Atom selection_atom)
|
|
|
1103 {
|
|
|
1104 /* This function can GC */
|
|
|
1105 Atom actual_type;
|
|
|
1106 int actual_format;
|
|
|
1107 unsigned long actual_size;
|
|
444
|
1108 Extbyte *data = NULL;
|
|
428
|
1109 int bytes = 0;
|
|
|
1110 Lisp_Object val;
|
|
|
1111 struct device *d = get_device_from_display (display);
|
|
|
1112
|
|
|
1113 x_get_window_property (display, window, property, &data, &bytes,
|
|
|
1114 &actual_type, &actual_format, &actual_size, 1);
|
|
|
1115 if (! data)
|
|
|
1116 {
|
|
|
1117 if (XGetSelectionOwner (display, selection_atom))
|
|
|
1118 /* there is a selection owner */
|
|
|
1119 signal_error
|
|
|
1120 (Qselection_conversion_error,
|
|
|
1121 Fcons (build_string ("selection owner couldn't convert"),
|
|
|
1122 Fcons (x_atom_to_symbol (d, selection_atom),
|
|
|
1123 actual_type ?
|
|
|
1124 list2 (target_type, x_atom_to_symbol (d, actual_type)) :
|
|
|
1125 list1 (target_type))));
|
|
|
1126 else
|
|
|
1127 signal_error (Qerror,
|
|
|
1128 list2 (build_string ("no selection"),
|
|
|
1129 x_atom_to_symbol (d, selection_atom)));
|
|
|
1130 }
|
|
|
1131
|
|
|
1132 if (actual_type == DEVICE_XATOM_INCR (d))
|
|
|
1133 {
|
|
|
1134 /* Ok, that data wasn't *the* data, it was just the beginning. */
|
|
|
1135
|
|
|
1136 unsigned int min_size_bytes = * ((unsigned int *) data);
|
|
|
1137 xfree (data);
|
|
|
1138 receive_incremental_selection (display, window, property, target_type,
|
|
|
1139 min_size_bytes, &data, &bytes,
|
|
|
1140 &actual_type, &actual_format,
|
|
|
1141 &actual_size);
|
|
|
1142 }
|
|
|
1143
|
|
|
1144 /* It's been read. Now convert it to a lisp object in some semi-rational
|
|
|
1145 manner. */
|
|
|
1146 val = selection_data_to_lisp_data (d, data, bytes,
|
|
|
1147 actual_type, actual_format);
|
|
|
1148
|
|
|
1149 xfree (data);
|
|
|
1150 return val;
|
|
|
1151 }
|
|
|
1152
|
|
442
|
1153 /* #### These are going to move into Lisp code(!) with the aid of
|
|
|
1154 some new functions I'm working on - ajh */
|
|
|
1155
|
|
428
|
1156 /* These functions convert from the selection data read from the server into
|
|
|
1157 something that we can use from elisp, and vice versa.
|
|
|
1158
|
|
|
1159 Type: Format: Size: Elisp Type:
|
|
|
1160 ----- ------- ----- -----------
|
|
|
1161 * 8 * String
|
|
|
1162 ATOM 32 1 Symbol
|
|
|
1163 ATOM 32 > 1 Vector of Symbols
|
|
|
1164 * 16 1 Integer
|
|
|
1165 * 16 > 1 Vector of Integers
|
|
|
1166 * 32 1 if <=16 bits: Integer
|
|
|
1167 if > 16 bits: Cons of top16, bot16
|
|
|
1168 * 32 > 1 Vector of the above
|
|
|
1169
|
|
|
1170 When converting a Lisp number to C, it is assumed to be of format 16 if
|
|
|
1171 it is an integer, and of format 32 if it is a cons of two integers.
|
|
|
1172
|
|
|
1173 When converting a vector of numbers from Elisp to C, it is assumed to be
|
|
|
1174 of format 16 if every element in the vector is an integer, and is assumed
|
|
|
1175 to be of format 32 if any element is a cons of two integers.
|
|
|
1176
|
|
|
1177 When converting an object to C, it may be of the form (SYMBOL . <data>)
|
|
|
1178 where SYMBOL is what we should claim that the type is. Format and
|
|
|
1179 representation are as above.
|
|
|
1180
|
|
|
1181 NOTE: Under Mule, when someone shoves us a string without a type, we
|
|
|
1182 set the type to 'COMPOUND_TEXT and automatically convert to Compound
|
|
|
1183 Text. If the string has a type, we assume that the user wants the
|
|
|
1184 data sent as-is so we just do "binary" conversion.
|
|
|
1185 */
|
|
|
1186
|
|
|
1187
|
|
|
1188 static Lisp_Object
|
|
|
1189 selection_data_to_lisp_data (struct device *d,
|
|
444
|
1190 Extbyte *data,
|
|
428
|
1191 size_t size,
|
|
|
1192 Atom type,
|
|
|
1193 int format)
|
|
|
1194 {
|
|
|
1195 if (type == DEVICE_XATOM_NULL (d))
|
|
|
1196 return QNULL;
|
|
|
1197
|
|
|
1198 /* Convert any 8-bit data to a string, for compactness. */
|
|
|
1199 else if (format == 8)
|
|
|
1200 return make_ext_string (data, size,
|
|
|
1201 type == DEVICE_XATOM_TEXT (d) ||
|
|
|
1202 type == DEVICE_XATOM_COMPOUND_TEXT (d)
|
|
440
|
1203 ? Qctext : Qbinary);
|
|
428
|
1204
|
|
|
1205 /* Convert a single atom to a Lisp Symbol.
|
|
|
1206 Convert a set of atoms to a vector of symbols. */
|
|
|
1207 else if (type == XA_ATOM)
|
|
|
1208 {
|
|
|
1209 if (size == sizeof (Atom))
|
|
|
1210 return x_atom_to_symbol (d, *((Atom *) data));
|
|
|
1211 else
|
|
|
1212 {
|
|
|
1213 int i;
|
|
|
1214 int len = size / sizeof (Atom);
|
|
|
1215 Lisp_Object v = Fmake_vector (make_int (len), Qzero);
|
|
|
1216 for (i = 0; i < len; i++)
|
|
|
1217 Faset (v, make_int (i), x_atom_to_symbol (d, ((Atom *) data) [i]));
|
|
|
1218 return v;
|
|
|
1219 }
|
|
|
1220 }
|
|
|
1221
|
|
|
1222 /* Convert a single 16 or small 32 bit number to a Lisp Int.
|
|
|
1223 If the number is > 16 bits, convert it to a cons of integers,
|
|
|
1224 16 bits in each half.
|
|
|
1225 */
|
|
|
1226 else if (format == 32 && size == sizeof (long))
|
|
|
1227 return word_to_lisp (((unsigned long *) data) [0]);
|
|
|
1228 else if (format == 16 && size == sizeof (short))
|
|
|
1229 return make_int ((int) (((unsigned short *) data) [0]));
|
|
|
1230
|
|
|
1231 /* Convert any other kind of data to a vector of numbers, represented
|
|
|
1232 as above (as an integer, or a cons of two 16 bit integers).
|
|
|
1233
|
|
|
1234 #### Perhaps we should return the actual type to lisp as well.
|
|
|
1235
|
|
|
1236 (x-get-selection-internal 'PRIMARY 'LINE_NUMBER)
|
|
|
1237 ==> [4 4]
|
|
|
1238
|
|
|
1239 and perhaps it should be
|
|
|
1240
|
|
|
1241 (x-get-selection-internal 'PRIMARY 'LINE_NUMBER)
|
|
|
1242 ==> (SPAN . [4 4])
|
|
|
1243
|
|
|
1244 Right now the fact that the return type was SPAN is discarded before
|
|
|
1245 lisp code gets to see it.
|
|
|
1246 */
|
|
|
1247 else if (format == 16)
|
|
|
1248 {
|
|
|
1249 int i;
|
|
|
1250 Lisp_Object v = make_vector (size / 4, Qzero);
|
|
|
1251 for (i = 0; i < (int) size / 4; i++)
|
|
|
1252 {
|
|
|
1253 int j = (int) ((unsigned short *) data) [i];
|
|
|
1254 Faset (v, make_int (i), make_int (j));
|
|
|
1255 }
|
|
|
1256 return v;
|
|
|
1257 }
|
|
|
1258 else
|
|
|
1259 {
|
|
|
1260 int i;
|
|
|
1261 Lisp_Object v = make_vector (size / 4, Qzero);
|
|
|
1262 for (i = 0; i < (int) size / 4; i++)
|
|
|
1263 {
|
|
|
1264 unsigned long j = ((unsigned long *) data) [i];
|
|
|
1265 Faset (v, make_int (i), word_to_lisp (j));
|
|
|
1266 }
|
|
|
1267 return v;
|
|
|
1268 }
|
|
|
1269 }
|
|
|
1270
|
|
|
1271
|
|
|
1272 static void
|
|
|
1273 lisp_data_to_selection_data (struct device *d,
|
|
|
1274 Lisp_Object obj,
|
|
|
1275 unsigned char **data_ret,
|
|
|
1276 Atom *type_ret,
|
|
|
1277 unsigned int *size_ret,
|
|
|
1278 int *format_ret)
|
|
|
1279 {
|
|
|
1280 Lisp_Object type = Qnil;
|
|
|
1281
|
|
|
1282 if (CONSP (obj) && SYMBOLP (XCAR (obj)))
|
|
|
1283 {
|
|
|
1284 type = XCAR (obj);
|
|
|
1285 obj = XCDR (obj);
|
|
|
1286 if (CONSP (obj) && NILP (XCDR (obj)))
|
|
|
1287 obj = XCAR (obj);
|
|
|
1288 }
|
|
|
1289
|
|
|
1290 if (EQ (obj, QNULL) || (EQ (type, QNULL)))
|
|
|
1291 { /* This is not the same as declining */
|
|
|
1292 *format_ret = 32;
|
|
|
1293 *size_ret = 0;
|
|
|
1294 *data_ret = 0;
|
|
|
1295 type = QNULL;
|
|
|
1296 }
|
|
|
1297 else if (STRINGP (obj))
|
|
|
1298 {
|
|
442
|
1299 const Extbyte *extval;
|
|
428
|
1300 Extcount extvallen;
|
|
|
1301
|
|
440
|
1302 TO_EXTERNAL_FORMAT (LISP_STRING, obj,
|
|
|
1303 ALLOCA, (extval, extvallen),
|
|
|
1304 (NILP (type) ? Qctext : Qbinary));
|
|
428
|
1305 *format_ret = 8;
|
|
|
1306 *size_ret = extvallen;
|
|
|
1307 *data_ret = (unsigned char *) xmalloc (*size_ret);
|
|
|
1308 memcpy (*data_ret, extval, *size_ret);
|
|
|
1309 #ifdef MULE
|
|
|
1310 if (NILP (type)) type = QCOMPOUND_TEXT;
|
|
|
1311 #else
|
|
|
1312 if (NILP (type)) type = QSTRING;
|
|
|
1313 #endif
|
|
|
1314 }
|
|
|
1315 else if (CHARP (obj))
|
|
|
1316 {
|
|
|
1317 Bufbyte buf[MAX_EMCHAR_LEN];
|
|
|
1318 Bytecount len;
|
|
442
|
1319 const Extbyte *extval;
|
|
428
|
1320 Extcount extvallen;
|
|
|
1321
|
|
|
1322 *format_ret = 8;
|
|
|
1323 len = set_charptr_emchar (buf, XCHAR (obj));
|
|
440
|
1324 TO_EXTERNAL_FORMAT (DATA, (buf, len),
|
|
|
1325 ALLOCA, (extval, extvallen),
|
|
|
1326 Qctext);
|
|
428
|
1327 *size_ret = extvallen;
|
|
|
1328 *data_ret = (unsigned char *) xmalloc (*size_ret);
|
|
|
1329 memcpy (*data_ret, extval, *size_ret);
|
|
|
1330 #ifdef MULE
|
|
|
1331 if (NILP (type)) type = QCOMPOUND_TEXT;
|
|
|
1332 #else
|
|
|
1333 if (NILP (type)) type = QSTRING;
|
|
|
1334 #endif
|
|
|
1335 }
|
|
|
1336 else if (SYMBOLP (obj))
|
|
|
1337 {
|
|
|
1338 *format_ret = 32;
|
|
|
1339 *size_ret = 1;
|
|
|
1340 *data_ret = (unsigned char *) xmalloc (sizeof (Atom) + 1);
|
|
|
1341 (*data_ret) [sizeof (Atom)] = 0;
|
|
|
1342 (*(Atom **) data_ret) [0] = symbol_to_x_atom (d, obj, 0);
|
|
|
1343 if (NILP (type)) type = QATOM;
|
|
|
1344 }
|
|
|
1345 else if (INTP (obj) &&
|
|
|
1346 XINT (obj) <= 0x7FFF &&
|
|
|
1347 XINT (obj) >= -0x8000)
|
|
|
1348 {
|
|
|
1349 *format_ret = 16;
|
|
|
1350 *size_ret = 1;
|
|
|
1351 *data_ret = (unsigned char *) xmalloc (sizeof (short) + 1);
|
|
|
1352 (*data_ret) [sizeof (short)] = 0;
|
|
|
1353 (*(short **) data_ret) [0] = (short) XINT (obj);
|
|
|
1354 if (NILP (type)) type = QINTEGER;
|
|
|
1355 }
|
|
|
1356 else if (INTP (obj) || CONSP (obj))
|
|
|
1357 {
|
|
|
1358 *format_ret = 32;
|
|
|
1359 *size_ret = 1;
|
|
|
1360 *data_ret = (unsigned char *) xmalloc (sizeof (long) + 1);
|
|
|
1361 (*data_ret) [sizeof (long)] = 0;
|
|
|
1362 (*(unsigned long **) data_ret) [0] = lisp_to_word (obj);
|
|
|
1363 if (NILP (type)) type = QINTEGER;
|
|
|
1364 }
|
|
|
1365 else if (VECTORP (obj))
|
|
|
1366 {
|
|
|
1367 /* Lisp Vectors may represent a set of ATOMs;
|
|
|
1368 a set of 16 or 32 bit INTEGERs;
|
|
|
1369 or a set of ATOM_PAIRs (represented as [[A1 A2] [A3 A4] ...]
|
|
|
1370 */
|
|
|
1371 int i;
|
|
|
1372
|
|
|
1373 if (SYMBOLP (XVECTOR_DATA (obj) [0]))
|
|
|
1374 /* This vector is an ATOM set */
|
|
|
1375 {
|
|
|
1376 if (NILP (type)) type = QATOM;
|
|
|
1377 *size_ret = XVECTOR_LENGTH (obj);
|
|
|
1378 *format_ret = 32;
|
|
|
1379 *data_ret = (unsigned char *) xmalloc ((*size_ret) * sizeof (Atom));
|
|
|
1380 for (i = 0; i < (int) (*size_ret); i++)
|
|
|
1381 if (SYMBOLP (XVECTOR_DATA (obj) [i]))
|
|
|
1382 (*(Atom **) data_ret) [i] =
|
|
|
1383 symbol_to_x_atom (d, XVECTOR_DATA (obj) [i], 0);
|
|
|
1384 else
|
|
|
1385 signal_error (Qerror, /* Qselection_error */
|
|
|
1386 list2 (build_string
|
|
|
1387 ("all elements of the vector must be of the same type"),
|
|
|
1388 obj));
|
|
|
1389 }
|
|
|
1390 #if 0 /* #### MULTIPLE doesn't work yet */
|
|
|
1391 else if (VECTORP (XVECTOR_DATA (obj) [0]))
|
|
|
1392 /* This vector is an ATOM_PAIR set */
|
|
|
1393 {
|
|
|
1394 if (NILP (type)) type = QATOM_PAIR;
|
|
|
1395 *size_ret = XVECTOR_LENGTH (obj);
|
|
|
1396 *format_ret = 32;
|
|
|
1397 *data_ret = (unsigned char *)
|
|
|
1398 xmalloc ((*size_ret) * sizeof (Atom) * 2);
|
|
|
1399 for (i = 0; i < *size_ret; i++)
|
|
|
1400 if (VECTORP (XVECTOR_DATA (obj) [i]))
|
|
|
1401 {
|
|
|
1402 Lisp_Object pair = XVECTOR_DATA (obj) [i];
|
|
|
1403 if (XVECTOR_LENGTH (pair) != 2)
|
|
|
1404 signal_error (Qerror,
|
|
|
1405 list2 (build_string
|
|
|
1406 ("elements of the vector must be vectors of exactly two elements"),
|
|
|
1407 pair));
|
|
|
1408
|
|
|
1409 (*(Atom **) data_ret) [i * 2] =
|
|
|
1410 symbol_to_x_atom (d, XVECTOR_DATA (pair) [0], 0);
|
|
|
1411 (*(Atom **) data_ret) [(i * 2) + 1] =
|
|
|
1412 symbol_to_x_atom (d, XVECTOR_DATA (pair) [1], 0);
|
|
|
1413 }
|
|
|
1414 else
|
|
|
1415 signal_error (Qerror,
|
|
|
1416 list2 (build_string
|
|
|
1417 ("all elements of the vector must be of the same type"),
|
|
|
1418 obj));
|
|
|
1419 }
|
|
|
1420 #endif
|
|
|
1421 else
|
|
|
1422 /* This vector is an INTEGER set, or something like it */
|
|
|
1423 {
|
|
|
1424 *size_ret = XVECTOR_LENGTH (obj);
|
|
|
1425 if (NILP (type)) type = QINTEGER;
|
|
|
1426 *format_ret = 16;
|
|
|
1427 for (i = 0; i < (int) (*size_ret); i++)
|
|
|
1428 if (CONSP (XVECTOR_DATA (obj) [i]))
|
|
|
1429 *format_ret = 32;
|
|
|
1430 else if (!INTP (XVECTOR_DATA (obj) [i]))
|
|
|
1431 signal_error (Qerror, /* Qselection_error */
|
|
|
1432 list2 (build_string
|
|
|
1433 ("all elements of the vector must be integers or conses of integers"),
|
|
|
1434 obj));
|
|
|
1435
|
|
|
1436 *data_ret = (unsigned char *) xmalloc (*size_ret * (*format_ret/8));
|
|
|
1437 for (i = 0; i < (int) (*size_ret); i++)
|
|
|
1438 if (*format_ret == 32)
|
|
|
1439 (*((unsigned long **) data_ret)) [i] =
|
|
|
1440 lisp_to_word (XVECTOR_DATA (obj) [i]);
|
|
|
1441 else
|
|
|
1442 (*((unsigned short **) data_ret)) [i] =
|
|
|
1443 (unsigned short) lisp_to_word (XVECTOR_DATA (obj) [i]);
|
|
|
1444 }
|
|
|
1445 }
|
|
|
1446 else
|
|
|
1447 signal_error (Qerror, /* Qselection_error */
|
|
|
1448 list2 (build_string ("unrecognized selection data"),
|
|
|
1449 obj));
|
|
|
1450
|
|
|
1451 *type_ret = symbol_to_x_atom (d, type, 0);
|
|
|
1452 }
|
|
|
1453
|
|
|
1454
|
|
|
1455
|
|
|
1456 /* Called from the event loop to handle SelectionNotify events.
|
|
|
1457 I don't think this needs to be reentrant.
|
|
|
1458 */
|
|
|
1459 void
|
|
|
1460 x_handle_selection_notify (XSelectionEvent *event)
|
|
|
1461 {
|
|
|
1462 if (! reading_selection_reply)
|
|
|
1463 message ("received an unexpected SelectionNotify event");
|
|
|
1464 else if (event->requestor != reading_selection_reply)
|
|
|
1465 message ("received a SelectionNotify event for the wrong window");
|
|
|
1466 else if (event->selection != reading_which_selection)
|
|
|
1467 message ("received the wrong selection type in SelectionNotify!");
|
|
|
1468 else
|
|
|
1469 reading_selection_reply = 0; /* we're done now. */
|
|
|
1470 }
|
|
|
1471
|
|
|
1472 static void
|
|
|
1473 x_disown_selection (Lisp_Object selection, Lisp_Object timeval)
|
|
|
1474 {
|
|
|
1475 struct device *d = decode_x_device (Qnil);
|
|
|
1476 Display *display = DEVICE_X_DISPLAY (d);
|
|
|
1477 Time timestamp;
|
|
|
1478 Atom selection_atom;
|
|
|
1479
|
|
|
1480 CHECK_SYMBOL (selection);
|
|
|
1481 if (NILP (timeval))
|
|
|
1482 timestamp = DEVICE_X_MOUSE_TIMESTAMP (d);
|
|
|
1483 else
|
|
|
1484 {
|
|
|
1485 /* #### This is bogus. See the comment above about problems
|
|
|
1486 on OSF/1 and DEC Alphas. Yet another reason why it sucks
|
|
|
1487 to have the implementation (i.e. cons of two 16-bit
|
|
|
1488 integers) exposed. */
|
|
|
1489 time_t the_time;
|
|
|
1490 lisp_to_time (timeval, &the_time);
|
|
|
1491 timestamp = (Time) the_time;
|
|
|
1492 }
|
|
|
1493
|
|
|
1494 selection_atom = symbol_to_x_atom (d, selection, 0);
|
|
|
1495
|
|
|
1496 XSetSelectionOwner (display, selection_atom, None, timestamp);
|
|
|
1497 }
|
|
|
1498
|
|
|
1499 static Lisp_Object
|
|
442
|
1500 x_selection_exists_p (Lisp_Object selection,
|
|
|
1501 Lisp_Object selection_type)
|
|
428
|
1502 {
|
|
|
1503 struct device *d = decode_x_device (Qnil);
|
|
|
1504 Display *dpy = DEVICE_X_DISPLAY (d);
|
|
|
1505 return XGetSelectionOwner (dpy, symbol_to_x_atom (d, selection, 0)) != None ?
|
|
|
1506 Qt : Qnil;
|
|
|
1507 }
|
|
|
1508
|
|
|
1509
|
|
|
1510 #ifdef CUT_BUFFER_SUPPORT
|
|
|
1511
|
|
|
1512 static int cut_buffers_initialized; /* Whether we're sure they all exist */
|
|
|
1513
|
|
|
1514 /* Ensure that all 8 cut buffers exist. ICCCM says we gotta... */
|
|
|
1515 static void
|
|
|
1516 initialize_cut_buffers (Display *display, Window window)
|
|
|
1517 {
|
|
442
|
1518 static unsigned const char * const data = (unsigned const char *) "";
|
|
428
|
1519 #define FROB(atom) XChangeProperty (display, window, atom, XA_STRING, 8, \
|
|
|
1520 PropModeAppend, data, 0)
|
|
|
1521 FROB (XA_CUT_BUFFER0);
|
|
|
1522 FROB (XA_CUT_BUFFER1);
|
|
|
1523 FROB (XA_CUT_BUFFER2);
|
|
|
1524 FROB (XA_CUT_BUFFER3);
|
|
|
1525 FROB (XA_CUT_BUFFER4);
|
|
|
1526 FROB (XA_CUT_BUFFER5);
|
|
|
1527 FROB (XA_CUT_BUFFER6);
|
|
|
1528 FROB (XA_CUT_BUFFER7);
|
|
|
1529 #undef FROB
|
|
|
1530 cut_buffers_initialized = 1;
|
|
|
1531 }
|
|
|
1532
|
|
|
1533 #define CHECK_CUTBUFFER(symbol) do { \
|
|
|
1534 CHECK_SYMBOL (symbol); \
|
|
|
1535 if (! (EQ (symbol, QCUT_BUFFER0) || \
|
|
|
1536 EQ (symbol, QCUT_BUFFER1) || \
|
|
|
1537 EQ (symbol, QCUT_BUFFER2) || \
|
|
|
1538 EQ (symbol, QCUT_BUFFER3) || \
|
|
|
1539 EQ (symbol, QCUT_BUFFER4) || \
|
|
|
1540 EQ (symbol, QCUT_BUFFER5) || \
|
|
|
1541 EQ (symbol, QCUT_BUFFER6) || \
|
|
|
1542 EQ (symbol, QCUT_BUFFER7))) \
|
|
|
1543 signal_simple_error ("Doesn't name a cutbuffer", symbol); \
|
|
|
1544 } while (0)
|
|
|
1545
|
|
|
1546 DEFUN ("x-get-cutbuffer-internal", Fx_get_cutbuffer_internal, 1, 1, 0, /*
|
|
|
1547 Return the value of the named CUTBUFFER (typically CUT_BUFFER0).
|
|
|
1548 */
|
|
|
1549 (cutbuffer))
|
|
|
1550 {
|
|
|
1551 struct device *d = decode_x_device (Qnil);
|
|
|
1552 Display *display = DEVICE_X_DISPLAY (d);
|
|
|
1553 Window window = RootWindow (display, 0); /* Cutbuffers are on frame 0 */
|
|
|
1554 Atom cut_buffer_atom;
|
|
444
|
1555 Extbyte *data;
|
|
428
|
1556 int bytes;
|
|
|
1557 Atom type;
|
|
|
1558 int format;
|
|
|
1559 unsigned long size;
|
|
|
1560 Lisp_Object ret;
|
|
|
1561
|
|
|
1562 CHECK_CUTBUFFER (cutbuffer);
|
|
|
1563 cut_buffer_atom = symbol_to_x_atom (d, cutbuffer, 0);
|
|
|
1564
|
|
|
1565 x_get_window_property (display, window, cut_buffer_atom, &data, &bytes,
|
|
|
1566 &type, &format, &size, 0);
|
|
|
1567 if (!data) return Qnil;
|
|
|
1568
|
|
|
1569 if (format != 8 || type != XA_STRING)
|
|
|
1570 signal_simple_error_2 ("Cut buffer doesn't contain 8-bit STRING data",
|
|
|
1571 x_atom_to_symbol (d, type),
|
|
|
1572 make_int (format));
|
|
|
1573
|
|
|
1574 /* We cheat - if the string contains an ESC character, that's
|
|
|
1575 technically not allowed in a STRING, so we assume it's
|
|
|
1576 COMPOUND_TEXT that we stored there ourselves earlier,
|
|
|
1577 in x-store-cutbuffer-internal */
|
|
|
1578 ret = (bytes ?
|
|
|
1579 make_ext_string (data, bytes,
|
|
|
1580 memchr (data, 0x1b, bytes) ?
|
|
440
|
1581 Qctext : Qbinary)
|
|
428
|
1582 : Qnil);
|
|
|
1583 xfree (data);
|
|
|
1584 return ret;
|
|
|
1585 }
|
|
|
1586
|
|
|
1587
|
|
|
1588 DEFUN ("x-store-cutbuffer-internal", Fx_store_cutbuffer_internal, 2, 2, 0, /*
|
|
|
1589 Set the value of the named CUTBUFFER (typically CUT_BUFFER0) to STRING.
|
|
|
1590 */
|
|
|
1591 (cutbuffer, string))
|
|
|
1592 {
|
|
|
1593 struct device *d = decode_x_device (Qnil);
|
|
|
1594 Display *display = DEVICE_X_DISPLAY (d);
|
|
|
1595 Window window = RootWindow (display, 0); /* Cutbuffers are on frame 0 */
|
|
|
1596 Atom cut_buffer_atom;
|
|
444
|
1597 const Bufbyte *data = XSTRING_DATA (string);
|
|
|
1598 Bytecount bytes = XSTRING_LENGTH (string);
|
|
|
1599 Bytecount bytes_remaining;
|
|
428
|
1600 int max_bytes = SELECTION_QUANTUM (display);
|
|
|
1601 #ifdef MULE
|
|
442
|
1602 const Bufbyte *ptr, *end;
|
|
428
|
1603 enum { ASCII, LATIN_1, WORLD } chartypes = ASCII;
|
|
|
1604 #endif
|
|
|
1605
|
|
|
1606 if (max_bytes > MAX_SELECTION_QUANTUM)
|
|
|
1607 max_bytes = MAX_SELECTION_QUANTUM;
|
|
|
1608
|
|
|
1609 CHECK_CUTBUFFER (cutbuffer);
|
|
|
1610 CHECK_STRING (string);
|
|
|
1611 cut_buffer_atom = symbol_to_x_atom (d, cutbuffer, 0);
|
|
|
1612
|
|
|
1613 if (! cut_buffers_initialized)
|
|
|
1614 initialize_cut_buffers (display, window);
|
|
|
1615
|
|
|
1616 /* We use the STRING encoding (Latin-1 only) if we can, else COMPOUND_TEXT.
|
|
|
1617 We cheat and use type = `STRING' even when using COMPOUND_TEXT.
|
|
|
1618 The ICCCM requires that this be so, and other clients assume it,
|
|
|
1619 as we do ourselves in initialize_cut_buffers. */
|
|
|
1620
|
|
|
1621 #ifdef MULE
|
|
|
1622 /* Optimize for the common ASCII case */
|
|
|
1623 for (ptr = data, end = ptr + bytes; ptr <= end; )
|
|
|
1624 {
|
|
|
1625 if (BYTE_ASCII_P (*ptr))
|
|
|
1626 {
|
|
|
1627 ptr++;
|
|
|
1628 continue;
|
|
|
1629 }
|
|
|
1630
|
|
|
1631 if ((*ptr) == LEADING_BYTE_LATIN_ISO8859_1 ||
|
|
|
1632 (*ptr) == LEADING_BYTE_CONTROL_1)
|
|
|
1633 {
|
|
|
1634 chartypes = LATIN_1;
|
|
|
1635 ptr += 2;
|
|
|
1636 continue;
|
|
|
1637 }
|
|
|
1638
|
|
|
1639 chartypes = WORLD;
|
|
|
1640 break;
|
|
|
1641 }
|
|
|
1642
|
|
|
1643 if (chartypes == LATIN_1)
|
|
440
|
1644 TO_EXTERNAL_FORMAT (LISP_STRING, string,
|
|
|
1645 ALLOCA, (data, bytes),
|
|
|
1646 Qbinary);
|
|
428
|
1647 else if (chartypes == WORLD)
|
|
440
|
1648 TO_EXTERNAL_FORMAT (LISP_STRING, string,
|
|
|
1649 ALLOCA, (data, bytes),
|
|
|
1650 Qctext);
|
|
428
|
1651 #endif /* MULE */
|
|
|
1652
|
|
|
1653 bytes_remaining = bytes;
|
|
|
1654
|
|
|
1655 while (bytes_remaining)
|
|
|
1656 {
|
|
|
1657 int chunk = bytes_remaining < max_bytes ? bytes_remaining : max_bytes;
|
|
|
1658 XChangeProperty (display, window, cut_buffer_atom, XA_STRING, 8,
|
|
|
1659 (bytes_remaining == bytes
|
|
|
1660 ? PropModeReplace : PropModeAppend),
|
|
|
1661 data, chunk);
|
|
|
1662 data += chunk;
|
|
|
1663 bytes_remaining -= chunk;
|
|
|
1664 }
|
|
|
1665 return string;
|
|
|
1666 }
|
|
|
1667
|
|
|
1668
|
|
|
1669 DEFUN ("x-rotate-cutbuffers-internal", Fx_rotate_cutbuffers_internal, 1, 1, 0, /*
|
|
|
1670 Rotate the values of the cutbuffers by the given number of steps;
|
|
|
1671 positive means move values forward, negative means backward.
|
|
|
1672 */
|
|
|
1673 (n))
|
|
|
1674 {
|
|
|
1675 struct device *d = decode_x_device (Qnil);
|
|
|
1676 Display *display = DEVICE_X_DISPLAY (d);
|
|
|
1677 Window window = RootWindow (display, 0); /* Cutbuffers are on frame 0 */
|
|
|
1678 Atom props [8];
|
|
|
1679
|
|
|
1680 CHECK_INT (n);
|
|
|
1681 if (XINT (n) == 0)
|
|
|
1682 return n;
|
|
|
1683 if (! cut_buffers_initialized)
|
|
|
1684 initialize_cut_buffers (display, window);
|
|
|
1685 props[0] = XA_CUT_BUFFER0;
|
|
|
1686 props[1] = XA_CUT_BUFFER1;
|
|
|
1687 props[2] = XA_CUT_BUFFER2;
|
|
|
1688 props[3] = XA_CUT_BUFFER3;
|
|
|
1689 props[4] = XA_CUT_BUFFER4;
|
|
|
1690 props[5] = XA_CUT_BUFFER5;
|
|
|
1691 props[6] = XA_CUT_BUFFER6;
|
|
|
1692 props[7] = XA_CUT_BUFFER7;
|
|
|
1693 XRotateWindowProperties (display, window, props, 8, XINT (n));
|
|
|
1694 return n;
|
|
|
1695 }
|
|
|
1696
|
|
|
1697 #endif /* CUT_BUFFER_SUPPORT */
|
|
|
1698
|
|
|
1699
|
|
|
1700
|
|
|
1701 /************************************************************************/
|
|
|
1702 /* initialization */
|
|
|
1703 /************************************************************************/
|
|
|
1704
|
|
|
1705 void
|
|
440
|
1706 syms_of_select_x (void)
|
|
428
|
1707 {
|
|
|
1708
|
|
|
1709 #ifdef CUT_BUFFER_SUPPORT
|
|
|
1710 DEFSUBR (Fx_get_cutbuffer_internal);
|
|
|
1711 DEFSUBR (Fx_store_cutbuffer_internal);
|
|
|
1712 DEFSUBR (Fx_rotate_cutbuffers_internal);
|
|
|
1713 #endif /* CUT_BUFFER_SUPPORT */
|
|
|
1714
|
|
|
1715 /* Unfortunately, timeout handlers must be lisp functions. */
|
|
|
1716 defsymbol (&Qx_selection_reply_timeout_internal,
|
|
|
1717 "x-selection-reply-timeout-internal");
|
|
|
1718 DEFSUBR (Fx_selection_reply_timeout_internal);
|
|
|
1719
|
|
|
1720 #ifdef CUT_BUFFER_SUPPORT
|
|
|
1721 defsymbol (&QCUT_BUFFER0, "CUT_BUFFER0");
|
|
|
1722 defsymbol (&QCUT_BUFFER1, "CUT_BUFFER1");
|
|
|
1723 defsymbol (&QCUT_BUFFER2, "CUT_BUFFER2");
|
|
|
1724 defsymbol (&QCUT_BUFFER3, "CUT_BUFFER3");
|
|
|
1725 defsymbol (&QCUT_BUFFER4, "CUT_BUFFER4");
|
|
|
1726 defsymbol (&QCUT_BUFFER5, "CUT_BUFFER5");
|
|
|
1727 defsymbol (&QCUT_BUFFER6, "CUT_BUFFER6");
|
|
|
1728 defsymbol (&QCUT_BUFFER7, "CUT_BUFFER7");
|
|
|
1729 #endif /* CUT_BUFFER_SUPPORT */
|
|
|
1730 }
|
|
|
1731
|
|
|
1732 void
|
|
|
1733 console_type_create_select_x (void)
|
|
|
1734 {
|
|
|
1735 CONSOLE_HAS_METHOD (x, own_selection);
|
|
|
1736 CONSOLE_HAS_METHOD (x, disown_selection);
|
|
|
1737 CONSOLE_HAS_METHOD (x, get_foreign_selection);
|
|
|
1738 CONSOLE_HAS_METHOD (x, selection_exists_p);
|
|
|
1739 }
|
|
|
1740
|
|
|
1741 void
|
|
440
|
1742 reinit_vars_of_select_x (void)
|
|
428
|
1743 {
|
|
|
1744 reading_selection_reply = 0;
|
|
|
1745 reading_which_selection = 0;
|
|
|
1746 selection_reply_timed_out = 0;
|
|
|
1747 for_whom_the_bell_tolls = 0;
|
|
|
1748 prop_location_tick = 0;
|
|
|
1749 }
|
|
|
1750
|
|
|
1751 void
|
|
440
|
1752 vars_of_select_x (void)
|
|
428
|
1753 {
|
|
440
|
1754 reinit_vars_of_select_x ();
|
|
428
|
1755
|
|
|
1756 #ifdef CUT_BUFFER_SUPPORT
|
|
|
1757 cut_buffers_initialized = 0;
|
|
|
1758 Fprovide (intern ("cut-buffer"));
|
|
|
1759 #endif
|
|
|
1760
|
|
|
1761 DEFVAR_LISP ("x-sent-selection-hooks", &Vx_sent_selection_hooks /*
|
|
|
1762 A function or functions to be called after we have responded to some
|
|
|
1763 other client's request for the value of a selection that we own. The
|
|
|
1764 function(s) will be called with four arguments:
|
|
|
1765 - the name of the selection (typically PRIMARY, SECONDARY, or CLIPBOARD);
|
|
|
1766 - the name of the selection-type which we were requested to convert the
|
|
|
1767 selection into before sending (for example, STRING or LENGTH);
|
|
|
1768 - and whether we successfully transmitted the selection.
|
|
|
1769 We might have failed (and declined the request) for any number of reasons,
|
|
|
1770 including being asked for a selection that we no longer own, or being asked
|
|
|
1771 to convert into a type that we don't know about or that is inappropriate.
|
|
|
1772 This hook doesn't let you change the behavior of emacs's selection replies,
|
|
|
1773 it merely informs you that they have happened.
|
|
|
1774 */ );
|
|
|
1775 Vx_sent_selection_hooks = Qunbound;
|
|
|
1776
|
|
|
1777 DEFVAR_INT ("x-selection-timeout", &x_selection_timeout /*
|
|
|
1778 If the selection owner doesn't reply in this many seconds, we give up.
|
|
|
1779 A value of 0 means wait as long as necessary. This is initialized from the
|
|
|
1780 \"*selectionTimeout\" resource (which is expressed in milliseconds).
|
|
|
1781 */ );
|
|
|
1782 x_selection_timeout = 0;
|
|
456
|
1783
|
|
|
1784 DEFVAR_BOOL ("x-selection-strict-motif-ownership", &x_selection_strict_motif_ownership /*
|
|
|
1785 *If true and XEmacs already owns the clipboard, don't own it again in the
|
|
|
1786 Motif way. Owning the selection on the Motif way does a huge amount of
|
|
|
1787 X protocol, and it makes killing text incredibly slow when using an
|
|
|
1788 X terminal. However, when enabled Motif text fields don't bother to look up
|
|
|
1789 the new value, and you can't Copy from a buffer, Paste into a text
|
|
|
1790 field, then Copy something else from the buffer and paste it into the
|
|
|
1791 text field; it pastes the first thing again.
|
|
|
1792 */ );
|
|
|
1793 x_selection_strict_motif_ownership = 1;
|
|
428
|
1794 }
|
|
|
1795
|
|
|
1796 void
|
|
440
|
1797 Xatoms_of_select_x (struct device *d)
|
|
428
|
1798 {
|
|
|
1799 Display *D = DEVICE_X_DISPLAY (d);
|
|
|
1800
|
|
|
1801 /* Non-predefined atoms that we might end up using a lot */
|
|
|
1802 DEVICE_XATOM_CLIPBOARD (d) = XInternAtom (D, "CLIPBOARD", False);
|
|
|
1803 DEVICE_XATOM_TIMESTAMP (d) = XInternAtom (D, "TIMESTAMP", False);
|
|
|
1804 DEVICE_XATOM_TEXT (d) = XInternAtom (D, "TEXT", False);
|
|
|
1805 DEVICE_XATOM_DELETE (d) = XInternAtom (D, "DELETE", False);
|
|
|
1806 DEVICE_XATOM_MULTIPLE (d) = XInternAtom (D, "MULTIPLE", False);
|
|
|
1807 DEVICE_XATOM_INCR (d) = XInternAtom (D, "INCR", False);
|
|
|
1808 DEVICE_XATOM_TARGETS (d) = XInternAtom (D, "TARGETS", False);
|
|
|
1809 DEVICE_XATOM_NULL (d) = XInternAtom (D, "NULL", False);
|
|
|
1810 DEVICE_XATOM_ATOM_PAIR (d) = XInternAtom (D, "ATOM_PAIR", False);
|
|
|
1811 DEVICE_XATOM_COMPOUND_TEXT (d) = XInternAtom (D, "COMPOUND_TEXT", False);
|
|
442
|
1812
|
|
|
1813 /* #### I don't like the looks of this... what is it for? - ajh */
|
|
428
|
1814 DEVICE_XATOM_EMACS_TMP (d) = XInternAtom (D, "_EMACS_TMP_", False);
|
|
|
1815 }
|
