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398
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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 TO_EXTERNAL_FORMAT (LISP_STRING, Fsymbol_name (sym),
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143 C_STRING_ALLOCA, nameext,
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144 Qctext);
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145 return XInternAtom (display, nameext, only_if_exists ? True : False);
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146 }
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147 }
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148
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149
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150 /* This converts a server Atom to a Lisp symbol, avoiding server roundtrips
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151 and calls to intern whenever possible.
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152 */
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153 static Lisp_Object
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154 x_atom_to_symbol (struct device *d, Atom atom)
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155 {
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156 Display *display = DEVICE_X_DISPLAY (d);
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157
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158 if (! atom) return Qnil;
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159 if (atom == XA_PRIMARY) return QPRIMARY;
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160 if (atom == XA_SECONDARY) return QSECONDARY;
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161 if (atom == XA_STRING) return QSTRING;
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162 if (atom == XA_INTEGER) return QINTEGER;
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163 if (atom == XA_ATOM) return QATOM;
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164 if (atom == DEVICE_XATOM_CLIPBOARD (d)) return QCLIPBOARD;
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165 if (atom == DEVICE_XATOM_TIMESTAMP (d)) return QTIMESTAMP;
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166 if (atom == DEVICE_XATOM_TEXT (d)) return QTEXT;
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167 if (atom == DEVICE_XATOM_DELETE (d)) return QDELETE;
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168 if (atom == DEVICE_XATOM_MULTIPLE (d)) return QMULTIPLE;
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169 if (atom == DEVICE_XATOM_INCR (d)) return QINCR;
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170 if (atom == DEVICE_XATOM_EMACS_TMP (d)) return QEMACS_TMP;
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171 if (atom == DEVICE_XATOM_TARGETS (d)) return QTARGETS;
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172 if (atom == DEVICE_XATOM_NULL (d)) return QNULL;
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173 if (atom == DEVICE_XATOM_ATOM_PAIR (d)) return QATOM_PAIR;
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174 if (atom == DEVICE_XATOM_COMPOUND_TEXT (d)) return QCOMPOUND_TEXT;
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175
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176 #ifdef CUT_BUFFER_SUPPORT
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177 if (atom == XA_CUT_BUFFER0) return QCUT_BUFFER0;
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178 if (atom == XA_CUT_BUFFER1) return QCUT_BUFFER1;
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179 if (atom == XA_CUT_BUFFER2) return QCUT_BUFFER2;
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180 if (atom == XA_CUT_BUFFER3) return QCUT_BUFFER3;
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181 if (atom == XA_CUT_BUFFER4) return QCUT_BUFFER4;
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182 if (atom == XA_CUT_BUFFER5) return QCUT_BUFFER5;
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183 if (atom == XA_CUT_BUFFER6) return QCUT_BUFFER6;
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184 if (atom == XA_CUT_BUFFER7) return QCUT_BUFFER7;
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185 #endif
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186
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187 {
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188 char *intstr;
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189 char *str = XGetAtomName (display, atom);
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190
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191 if (! str) return Qnil;
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192
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193 TO_INTERNAL_FORMAT (C_STRING, str,
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194 C_STRING_ALLOCA, intstr,
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195 Qctext);
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196 XFree (str);
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197 return intern (intstr);
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198 }
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199 }
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200
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201
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202 /* Do protocol to assert ourself as a selection owner.
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203 Update the Vselection_alist so that we can reply to later requests for
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204 our selection.
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205 */
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206 static Lisp_Object
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207 x_own_selection (Lisp_Object selection_name, Lisp_Object selection_value)
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208 {
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209 struct device *d = decode_x_device (Qnil);
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210 Display *display = DEVICE_X_DISPLAY (d);
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211 struct frame *sel_frame = selected_frame ();
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212 Window selecting_window = XtWindow (FRAME_X_TEXT_WIDGET (sel_frame));
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213 Lisp_Object selection_time;
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214 /* Use the time of the last-read mouse or keyboard event.
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215 For selection purposes, we use this as a sleazy way of knowing what the
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216 current time is in server-time. This assumes that the most recently read
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217 mouse or keyboard event has something to do with the assertion of the
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218 selection, which is probably true.
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219 */
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220 Time thyme = DEVICE_X_MOUSE_TIMESTAMP (d);
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221 Atom selection_atom;
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222
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223 CHECK_SYMBOL (selection_name);
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224 selection_atom = symbol_to_x_atom (d, selection_name, 0);
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225
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226 XSetSelectionOwner (display, selection_atom, selecting_window, thyme);
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227
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228 /* We do NOT use time_to_lisp() here any more, like we used to.
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229 That assumed equivalence of time_t and Time, which is not
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230 necessarily the case (e.g. under OSF on the Alphas, where
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231 Time is a 64-bit quantity and time_t is a 32-bit quantity).
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232
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233 Opaque pointers are the clean way to go here.
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234 */
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235 selection_time = make_opaque (&thyme, sizeof (thyme));
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236
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237 #ifdef MOTIF_CLIPBOARDS
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238 hack_motif_clipboard_selection (selection_atom, selection_value,
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239 thyme, display, selecting_window);
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240 #endif
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241 return selection_time;
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242 }
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243
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244 #ifdef MOTIF_CLIPBOARDS /* Bend over baby. Take it and like it. */
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245
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246 # ifdef MOTIF_INCREMENTAL_CLIPBOARDS_WORK
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247 static void motif_clipboard_cb ();
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248 # endif
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249
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250 static void
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251 hack_motif_clipboard_selection (Atom selection_atom,
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252 Lisp_Object selection_value,
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253 Time thyme,
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254 Display *display,
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255 Window selecting_window)
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256 /* Bool owned_p)*/
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257 {
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258 struct device *d = get_device_from_display (display);
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259 /* Those Motif wankers can't be bothered to follow the ICCCM, and do
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260 their own non-Xlib non-Xt clipboard processing. So we have to do
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261 this so that linked-in Motif widgets don't get themselves wedged.
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262 */
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263 if (selection_atom == DEVICE_XATOM_CLIPBOARD (d)
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264 && STRINGP (selection_value)
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265
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266 /* If we already own the clipboard, don't own it again in the Motif
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267 way. This might lose in some subtle way, since the timestamp won't
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268 be current, but owning the selection on the Motif way does a
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269 SHITLOAD of X protocol, and it makes killing text be incredibly
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270 slow when using an X terminal. ARRRRGGGHHH!!!!
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271 */
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272 /* No, this is no good, because then Motif text fields don't bother
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273 to look up the new value, and you can't Copy from a buffer, Paste
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274 into a text field, then Copy something else from the buffer and
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275 paste it into the text field -- it pastes the first thing again. */
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276 /* && !owned_p */
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277 )
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278 {
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279 #ifdef MOTIF_INCREMENTAL_CLIPBOARDS_WORK
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280 Widget widget = FRAME_X_TEXT_WIDGET (selected_frame());
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281 #endif
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282 long itemid;
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283 #if XmVersion >= 1002
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284 long dataid;
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285 #else
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286 int dataid; /* 1.2 wants long, but 1.1.5 wants int... */
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287 #endif
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288 XmString fmh;
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289 String encoding = "STRING";
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290 const Extbyte *data = XSTRING_DATA (selection_value);
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291 Extcount bytes = XSTRING_LENGTH (selection_value);
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292
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293 #ifdef MULE
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294 {
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295 enum { ASCII, LATIN_1, WORLD } chartypes = ASCII;
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296 const Bufbyte *ptr = data, *end = ptr + bytes;
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297 /* Optimize for the common ASCII case */
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298 while (ptr <= end)
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299 {
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300 if (BYTE_ASCII_P (*ptr))
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301 {
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302 ptr++;
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303 continue;
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304 }
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305
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306 if ((*ptr) == LEADING_BYTE_LATIN_ISO8859_1 ||
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307 (*ptr) == LEADING_BYTE_CONTROL_1)
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308 {
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309 chartypes = LATIN_1;
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310 ptr += 2;
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311 continue;
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312 }
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313
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314 chartypes = WORLD;
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315 break;
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316 }
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317
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318 if (chartypes == LATIN_1)
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319 TO_EXTERNAL_FORMAT (LISP_STRING, selection_value,
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320 ALLOCA, (data, bytes),
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321 Qbinary);
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322 else if (chartypes == WORLD)
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323 {
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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 Qctext);
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327 encoding = "COMPOUND_TEXT";
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328 }
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329 }
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330 #endif /* MULE */
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331
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332 fmh = XmStringCreateLtoR ("Clipboard", XmSTRING_DEFAULT_CHARSET);
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333 while (ClipboardSuccess !=
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334 XmClipboardStartCopy (display, selecting_window, fmh, thyme,
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335 #ifdef MOTIF_INCREMENTAL_CLIPBOARDS_WORK
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336 widget, motif_clipboard_cb,
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337 #else
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338 0, NULL,
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339 #endif
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340 &itemid))
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341 ;
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342 XmStringFree (fmh);
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343 while (ClipboardSuccess !=
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344 XmClipboardCopy (display, selecting_window, itemid, encoding,
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345 #ifdef MOTIF_INCREMENTAL_CLIPBOARDS_WORK
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346 /* O'Reilly examples say size can be 0,
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347 but this clearly is not the case. */
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348 0, bytes, (int) selecting_window, /* private id */
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349 #else /* !MOTIF_INCREMENTAL_CLIPBOARDS_WORK */
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350 (XtPointer) data, bytes, 0,
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351 #endif /* !MOTIF_INCREMENTAL_CLIPBOARDS_WORK */
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352 &dataid))
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353 ;
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354 while (ClipboardSuccess !=
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355 XmClipboardEndCopy (display, selecting_window, itemid))
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356 ;
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357 }
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358 }
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359
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360 # ifdef MOTIF_INCREMENTAL_CLIPBOARDS_WORK
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361 /* I tried to treat the clipboard like a real selection, and not send
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362 the data until it was requested, but it looks like that just doesn't
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363 work at all unless the selection owner and requestor are in different
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364 processes. From reading the Motif source, it looks like they never
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365 even considered having two widgets in the same application transfer
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366 data between each other using "by-name" clipboard values. What a
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367 bunch of fuckups.
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368 */
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369 static void
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370 motif_clipboard_cb (Widget widget, int *data_id, int *private_id, int *reason)
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371 {
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372 switch (*reason)
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373 {
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374 case XmCR_CLIPBOARD_DATA_REQUEST:
|
|
|
375 {
|
|
|
376 Display *dpy = XtDisplay (widget);
|
|
|
377 Window window = (Window) *private_id;
|
|
|
378 Lisp_Object selection = assq_no_quit (QCLIPBOARD, Vselection_alist);
|
|
|
379 if (NILP (selection)) abort ();
|
|
|
380 selection = XCDR (selection);
|
|
|
381 if (!STRINGP (selection)) abort ();
|
|
|
382 XmClipboardCopyByName (dpy, window, *data_id,
|
|
|
383 (char *) XSTRING_DATA (selection),
|
|
|
384 XSTRING_LENGTH (selection) + 1,
|
|
|
385 0);
|
|
|
386 }
|
|
|
387 break;
|
|
|
388 case XmCR_CLIPBOARD_DATA_DELETE:
|
|
|
389 default:
|
|
|
390 /* don't need to free anything */
|
|
|
391 break;
|
|
|
392 }
|
|
|
393 }
|
|
|
394 # endif /* MOTIF_INCREMENTAL_CLIPBOARDS_WORK */
|
|
|
395 #endif /* MOTIF_CLIPBOARDS */
|
|
|
396
|
|
|
397
|
|
|
398
|
|
|
399
|
|
|
400 /* Send a SelectionNotify event to the requestor with property=None, meaning
|
|
|
401 we were unable to do what they wanted.
|
|
|
402 */
|
|
|
403 static void
|
|
|
404 x_decline_selection_request (XSelectionRequestEvent *event)
|
|
|
405 {
|
|
|
406 XSelectionEvent reply;
|
|
|
407 reply.type = SelectionNotify;
|
|
|
408 reply.display = event->display;
|
|
|
409 reply.requestor = event->requestor;
|
|
|
410 reply.selection = event->selection;
|
|
|
411 reply.time = event->time;
|
|
|
412 reply.target = event->target;
|
|
|
413 reply.property = None;
|
|
|
414
|
|
|
415 XSendEvent (reply.display, reply.requestor, False, 0L, (XEvent *) &reply);
|
|
|
416 XFlush (reply.display);
|
|
|
417 }
|
|
|
418
|
|
|
419
|
|
|
420 /* Used as an unwind-protect clause so that, if a selection-converter signals
|
|
|
421 an error, we tell the requestor that we were unable to do what they wanted
|
|
|
422 before we throw to top-level or go into the debugger or whatever.
|
|
|
423 */
|
|
|
424 static Lisp_Object
|
|
|
425 x_selection_request_lisp_error (Lisp_Object closure)
|
|
|
426 {
|
|
|
427 XSelectionRequestEvent *event = (XSelectionRequestEvent *)
|
|
|
428 get_opaque_ptr (closure);
|
|
|
429
|
|
|
430 free_opaque_ptr (closure);
|
|
|
431 if (event->type == 0) /* we set this to mean "completed normally" */
|
|
|
432 return Qnil;
|
|
|
433 x_decline_selection_request (event);
|
|
|
434 return Qnil;
|
|
|
435 }
|
|
|
436
|
|
|
437
|
|
|
438 /* Convert our selection to the requested type, and put that data where the
|
|
|
439 requestor wants it. Then tell them whether we've succeeded.
|
|
|
440 */
|
|
|
441 static void
|
|
|
442 x_reply_selection_request (XSelectionRequestEvent *event, int format,
|
|
|
443 unsigned char *data, int size, Atom type)
|
|
|
444 {
|
|
|
445 /* This function can GC */
|
|
|
446 XSelectionEvent reply;
|
|
|
447 Display *display = event->display;
|
|
|
448 struct device *d = get_device_from_display (display);
|
|
|
449 Window window = event->requestor;
|
|
|
450 int bytes_remaining;
|
|
|
451 int format_bytes = format/8;
|
|
|
452 int max_bytes = SELECTION_QUANTUM (display);
|
|
|
453 if (max_bytes > MAX_SELECTION_QUANTUM) max_bytes = MAX_SELECTION_QUANTUM;
|
|
|
454
|
|
|
455 reply.type = SelectionNotify;
|
|
|
456 reply.display = display;
|
|
|
457 reply.requestor = window;
|
|
|
458 reply.selection = event->selection;
|
|
|
459 reply.time = event->time;
|
|
|
460 reply.target = event->target;
|
|
|
461 reply.property = (event->property == None ? event->target : event->property);
|
|
|
462
|
|
|
463 /* #### XChangeProperty can generate BadAlloc, and we must handle it! */
|
|
|
464
|
|
|
465 /* Store the data on the requested property.
|
|
|
466 If the selection is large, only store the first N bytes of it.
|
|
|
467 */
|
|
|
468 bytes_remaining = size * format_bytes;
|
|
|
469 if (bytes_remaining <= max_bytes)
|
|
|
470 {
|
|
|
471 /* Send all the data at once, with minimal handshaking. */
|
|
|
472 #if 0
|
|
|
473 stderr_out ("\nStoring all %d\n", bytes_remaining);
|
|
|
474 #endif
|
|
|
475 XChangeProperty (display, window, reply.property, type, format,
|
|
|
476 PropModeReplace, data, size);
|
|
|
477 /* At this point, the selection was successfully stored; ack it. */
|
|
|
478 XSendEvent (display, window, False, 0L, (XEvent *) &reply);
|
|
|
479 XFlush (display);
|
|
|
480 }
|
|
|
481 else
|
|
|
482 {
|
|
|
483 /* Send an INCR selection. */
|
|
|
484 int prop_id;
|
|
|
485
|
|
|
486 if (x_window_to_frame (d, window)) /* #### debug */
|
|
|
487 error ("attempt to transfer an INCR to ourself!");
|
|
|
488 #if 0
|
|
|
489 stderr_out ("\nINCR %d\n", bytes_remaining);
|
|
|
490 #endif
|
|
|
491 prop_id = expect_property_change (display, window, reply.property,
|
|
|
492 PropertyDelete);
|
|
|
493
|
|
|
494 XChangeProperty (display, window, reply.property, DEVICE_XATOM_INCR (d),
|
|
|
495 32, PropModeReplace, (unsigned char *)
|
|
|
496 &bytes_remaining, 1);
|
|
|
497 XSelectInput (display, window, PropertyChangeMask);
|
|
|
498 /* Tell 'em the INCR data is there... */
|
|
|
499 XSendEvent (display, window, False, 0L, (XEvent *) &reply);
|
|
|
500 XFlush (display);
|
|
|
501
|
|
|
502 /* First, wait for the requestor to ack by deleting the property.
|
|
|
503 This can run random lisp code (process handlers) or signal.
|
|
|
504 */
|
|
|
505 wait_for_property_change (prop_id);
|
|
|
506
|
|
|
507 while (bytes_remaining)
|
|
|
508 {
|
|
|
509 int i = ((bytes_remaining < max_bytes)
|
|
|
510 ? bytes_remaining
|
|
|
511 : max_bytes);
|
|
|
512 prop_id = expect_property_change (display, window, reply.property,
|
|
|
513 PropertyDelete);
|
|
|
514 #if 0
|
|
|
515 stderr_out (" INCR adding %d\n", i);
|
|
|
516 #endif
|
|
|
517 /* Append the next chunk of data to the property. */
|
|
|
518 XChangeProperty (display, window, reply.property, type, format,
|
|
|
519 PropModeAppend, data, i / format_bytes);
|
|
|
520 bytes_remaining -= i;
|
|
|
521 data += i;
|
|
|
522
|
|
|
523 /* Now wait for the requestor to ack this chunk by deleting the
|
|
|
524 property. This can run random lisp code or signal.
|
|
|
525 */
|
|
|
526 wait_for_property_change (prop_id);
|
|
|
527 }
|
|
|
528 /* Now write a zero-length chunk to the property to tell the requestor
|
|
|
529 that we're done. */
|
|
|
530 #if 0
|
|
|
531 stderr_out (" INCR done\n");
|
|
|
532 #endif
|
|
|
533 if (! waiting_for_other_props_on_window (display, window))
|
|
|
534 XSelectInput (display, window, 0L);
|
|
|
535
|
|
|
536 XChangeProperty (display, window, reply.property, type, format,
|
|
|
537 PropModeReplace, data, 0);
|
|
|
538 }
|
|
|
539 }
|
|
|
540
|
|
|
541
|
|
|
542
|
|
|
543 /* Called from the event-loop in response to a SelectionRequest event.
|
|
|
544 */
|
|
|
545 void
|
|
|
546 x_handle_selection_request (XSelectionRequestEvent *event)
|
|
|
547 {
|
|
|
548 /* This function can GC */
|
|
|
549 struct gcpro gcpro1, gcpro2, gcpro3;
|
|
|
550 Lisp_Object local_selection_data = Qnil;
|
|
|
551 Lisp_Object selection_symbol;
|
|
|
552 Lisp_Object target_symbol = Qnil;
|
|
|
553 Lisp_Object converted_selection = Qnil;
|
|
|
554 Time local_selection_time;
|
|
|
555 Lisp_Object successful_p = Qnil;
|
|
|
556 int count;
|
|
|
557 struct device *d = get_device_from_display (event->display);
|
|
|
558
|
|
|
559 GCPRO3 (local_selection_data, converted_selection, target_symbol);
|
|
|
560
|
|
|
561 selection_symbol = x_atom_to_symbol (d, event->selection);
|
|
|
562
|
|
|
563 local_selection_data = assq_no_quit (selection_symbol, Vselection_alist);
|
|
|
564
|
|
|
565 #if 0
|
|
|
566 /* This list isn't user-visible, so it can't "go bad." */
|
|
|
567 assert (CONSP (local_selection_data));
|
|
|
568 assert (CONSP (XCDR (local_selection_data)));
|
|
|
569 assert (CONSP (XCDR (XCDR (local_selection_data))));
|
|
|
570 assert (NILP (XCDR (XCDR (XCDR (local_selection_data)))));
|
|
|
571 assert (CONSP (XCAR (XCDR (XCDR (local_selection_data)))));
|
|
|
572 assert (INTP (XCAR (XCAR (XCDR (XCDR (local_selection_data))))));
|
|
|
573 assert (INTP (XCDR (XCAR (XCDR (XCDR (local_selection_data))))));
|
|
|
574 #endif
|
|
|
575
|
|
|
576 if (NILP (local_selection_data))
|
|
|
577 {
|
|
|
578 /* Someone asked for the selection, but we don't have it any more. */
|
|
|
579 x_decline_selection_request (event);
|
|
|
580 goto DONE_LABEL;
|
|
|
581 }
|
|
|
582
|
|
|
583 local_selection_time =
|
|
|
584 * (Time *) XOPAQUE_DATA (XCAR (XCDR (XCDR (local_selection_data))));
|
|
|
585
|
|
|
586 if (event->time != CurrentTime &&
|
|
|
587 local_selection_time > event->time)
|
|
|
588 {
|
|
|
589 /* Someone asked for the selection, and we have one, but not the one
|
|
|
590 they're looking for. */
|
|
|
591 x_decline_selection_request (event);
|
|
|
592 goto DONE_LABEL;
|
|
|
593 }
|
|
|
594
|
|
|
595 count = specpdl_depth ();
|
|
|
596 record_unwind_protect (x_selection_request_lisp_error,
|
|
|
597 make_opaque_ptr (event));
|
|
|
598 target_symbol = x_atom_to_symbol (d, event->target);
|
|
|
599
|
|
|
600 #if 0 /* #### MULTIPLE doesn't work yet */
|
|
|
601 if (EQ (target_symbol, QMULTIPLE))
|
|
|
602 target_symbol = fetch_multiple_target (event);
|
|
|
603 #endif
|
|
|
604
|
|
|
605 /* Convert lisp objects back into binary data */
|
|
|
606
|
|
|
607 converted_selection =
|
|
|
608 get_local_selection (selection_symbol, target_symbol);
|
|
|
609
|
|
|
610 if (! NILP (converted_selection))
|
|
|
611 {
|
|
|
612 unsigned char *data;
|
|
|
613 unsigned int size;
|
|
|
614 int format;
|
|
|
615 Atom type;
|
|
|
616 lisp_data_to_selection_data (d, converted_selection,
|
|
|
617 &data, &type, &size, &format);
|
|
|
618
|
|
|
619 x_reply_selection_request (event, format, data, size, type);
|
|
|
620 successful_p = Qt;
|
|
|
621 /* Tell x_selection_request_lisp_error() it's cool. */ event->type = 0;
|
|
|
622 xfree (data);
|
|
|
623 }
|
|
|
624 unbind_to (count, Qnil);
|
|
|
625
|
|
|
626 DONE_LABEL:
|
|
|
627
|
|
|
628 UNGCPRO;
|
|
|
629
|
|
|
630 /* Let random lisp code notice that the selection has been asked for. */
|
|
|
631 {
|
|
|
632 Lisp_Object rest;
|
|
|
633 Lisp_Object val = Vx_sent_selection_hooks;
|
|
|
634 if (!UNBOUNDP (val) && !NILP (val))
|
|
|
635 {
|
|
|
636 if (CONSP (val) && !EQ (XCAR (val), Qlambda))
|
|
|
637 for (rest = val; !NILP (rest); rest = Fcdr (rest))
|
|
|
638 call3 (Fcar(rest), selection_symbol, target_symbol,
|
|
|
639 successful_p);
|
|
|
640 else
|
|
|
641 call3 (val, selection_symbol, target_symbol,
|
|
|
642 successful_p);
|
|
|
643 }
|
|
|
644 }
|
|
|
645 }
|
|
|
646
|
|
|
647
|
|
|
648 /* Called from the event-loop in response to a SelectionClear event.
|
|
|
649 */
|
|
|
650 void
|
|
|
651 x_handle_selection_clear (XSelectionClearEvent *event)
|
|
|
652 {
|
|
|
653 Display *display = event->display;
|
|
|
654 struct device *d = get_device_from_display (display);
|
|
|
655 Atom selection = event->selection;
|
|
|
656 Time changed_owner_time = event->time;
|
|
|
657
|
|
|
658 Lisp_Object selection_symbol, local_selection_data;
|
|
|
659 Time local_selection_time;
|
|
|
660
|
|
|
661 selection_symbol = x_atom_to_symbol (d, selection);
|
|
|
662
|
|
|
663 local_selection_data = assq_no_quit (selection_symbol, Vselection_alist);
|
|
|
664
|
|
|
665 /* Well, we already believe that we don't own it, so that's just fine. */
|
|
|
666 if (NILP (local_selection_data)) return;
|
|
|
667
|
|
|
668 local_selection_time =
|
|
|
669 * (Time *) XOPAQUE_DATA (XCAR (XCDR (XCDR (local_selection_data))));
|
|
|
670
|
|
|
671 /* This SelectionClear is for a selection that we no longer own, so we can
|
|
|
672 disregard it. (That is, we have reasserted the selection since this
|
|
|
673 request was generated.)
|
|
|
674 */
|
|
|
675 if (changed_owner_time != CurrentTime &&
|
|
|
676 local_selection_time > changed_owner_time)
|
|
|
677 return;
|
|
|
678
|
|
|
679 handle_selection_clear (selection_symbol);
|
|
|
680 }
|
|
|
681
|
|
|
682
|
|
|
683 /* This stuff is so that INCR selections are reentrant (that is, so we can
|
|
|
684 be servicing multiple INCR selection requests simultaneously). I haven't
|
|
|
685 actually tested that yet.
|
|
|
686 */
|
|
|
687
|
|
|
688 static int prop_location_tick;
|
|
|
689
|
|
|
690 static struct prop_location {
|
|
|
691 int tick;
|
|
|
692 Display *display;
|
|
|
693 Window window;
|
|
|
694 Atom property;
|
|
|
695 int desired_state;
|
|
|
696 struct prop_location *next;
|
|
|
697 } *for_whom_the_bell_tolls;
|
|
|
698
|
|
|
699
|
|
|
700 static int
|
|
|
701 property_deleted_p (void *tick)
|
|
|
702 {
|
|
|
703 struct prop_location *rest = for_whom_the_bell_tolls;
|
|
|
704 while (rest)
|
|
|
705 if (rest->tick == (long) tick)
|
|
|
706 return 0;
|
|
|
707 else
|
|
|
708 rest = rest->next;
|
|
|
709 return 1;
|
|
|
710 }
|
|
|
711
|
|
|
712 static int
|
|
|
713 waiting_for_other_props_on_window (Display *display, Window window)
|
|
|
714 {
|
|
|
715 struct prop_location *rest = for_whom_the_bell_tolls;
|
|
|
716 while (rest)
|
|
|
717 if (rest->display == display && rest->window == window)
|
|
|
718 return 1;
|
|
|
719 else
|
|
|
720 rest = rest->next;
|
|
|
721 return 0;
|
|
|
722 }
|
|
|
723
|
|
|
724
|
|
|
725 static int
|
|
|
726 expect_property_change (Display *display, Window window,
|
|
|
727 Atom property, int state)
|
|
|
728 {
|
|
|
729 struct prop_location *pl = xnew (struct prop_location);
|
|
|
730 pl->tick = ++prop_location_tick;
|
|
|
731 pl->display = display;
|
|
|
732 pl->window = window;
|
|
|
733 pl->property = property;
|
|
|
734 pl->desired_state = state;
|
|
|
735 pl->next = for_whom_the_bell_tolls;
|
|
|
736 for_whom_the_bell_tolls = pl;
|
|
|
737 return pl->tick;
|
|
|
738 }
|
|
|
739
|
|
|
740 static void
|
|
|
741 unexpect_property_change (int tick)
|
|
|
742 {
|
|
|
743 struct prop_location *prev = 0, *rest = for_whom_the_bell_tolls;
|
|
|
744 while (rest)
|
|
|
745 {
|
|
|
746 if (rest->tick == tick)
|
|
|
747 {
|
|
|
748 if (prev)
|
|
|
749 prev->next = rest->next;
|
|
|
750 else
|
|
|
751 for_whom_the_bell_tolls = rest->next;
|
|
|
752 xfree (rest);
|
|
|
753 return;
|
|
|
754 }
|
|
|
755 prev = rest;
|
|
|
756 rest = rest->next;
|
|
|
757 }
|
|
|
758 }
|
|
|
759
|
|
|
760 static void
|
|
|
761 wait_for_property_change (long tick)
|
|
|
762 {
|
|
|
763 /* This function can GC */
|
|
|
764 wait_delaying_user_input (property_deleted_p, (void *) tick);
|
|
|
765 }
|
|
|
766
|
|
|
767
|
|
|
768 /* Called from the event-loop in response to a PropertyNotify event.
|
|
|
769 */
|
|
|
770 void
|
|
|
771 x_handle_property_notify (XPropertyEvent *event)
|
|
|
772 {
|
|
|
773 struct prop_location *prev = 0, *rest = for_whom_the_bell_tolls;
|
|
|
774 while (rest)
|
|
|
775 {
|
|
|
776 if (rest->property == event->atom &&
|
|
|
777 rest->window == event->window &&
|
|
|
778 rest->display == event->display &&
|
|
|
779 rest->desired_state == event->state)
|
|
|
780 {
|
|
|
781 #if 0
|
|
|
782 stderr_out ("Saw expected prop-%s on %s\n",
|
|
|
783 (event->state == PropertyDelete ? "delete" : "change"),
|
|
|
784 (char *) string_data (XSYMBOL (x_atom_to_symbol (get_device_from_display (event->display), event->atom))->name);
|
|
|
785 #endif
|
|
|
786 if (prev)
|
|
|
787 prev->next = rest->next;
|
|
|
788 else
|
|
|
789 for_whom_the_bell_tolls = rest->next;
|
|
|
790 xfree (rest);
|
|
|
791 return;
|
|
|
792 }
|
|
|
793 prev = rest;
|
|
|
794 rest = rest->next;
|
|
|
795 }
|
|
|
796 #if 0
|
|
|
797 stderr_out ("Saw UNexpected prop-%s on %s\n",
|
|
|
798 (event->state == PropertyDelete ? "delete" : "change"),
|
|
|
799 (char *) string_data (XSYMBOL (x_atom_to_symbol (get_device_from_display (event->display), event->atom))->name));
|
|
|
800 #endif
|
|
|
801 }
|
|
|
802
|
|
|
803
|
|
|
804
|
|
|
805 #if 0 /* #### MULTIPLE doesn't work yet */
|
|
|
806
|
|
|
807 static Lisp_Object
|
|
|
808 fetch_multiple_target (XSelectionRequestEvent *event)
|
|
|
809 {
|
|
|
810 /* This function can GC */
|
|
|
811 Display *display = event->display;
|
|
|
812 Window window = event->requestor;
|
|
|
813 Atom target = event->target;
|
|
|
814 Atom selection_atom = event->selection;
|
|
|
815 int result;
|
|
|
816
|
|
|
817 return
|
|
|
818 Fcons (QMULTIPLE,
|
|
|
819 x_get_window_property_as_lisp_data (display, window, target,
|
|
|
820 QMULTIPLE,
|
|
|
821 selection_atom));
|
|
|
822 }
|
|
|
823
|
|
|
824 static Lisp_Object
|
|
|
825 copy_multiple_data (Lisp_Object obj)
|
|
|
826 {
|
|
|
827 Lisp_Object vec;
|
|
|
828 int i;
|
|
|
829 int len;
|
|
|
830 if (CONSP (obj))
|
|
|
831 return Fcons (XCAR (obj), copy_multiple_data (XCDR (obj)));
|
|
|
832
|
|
|
833 CHECK_VECTOR (obj);
|
|
|
834 len = XVECTOR_LENGTH (obj);
|
|
|
835 vec = make_vector (len, Qnil);
|
|
|
836 for (i = 0; i < len; i++)
|
|
|
837 {
|
|
|
838 Lisp_Object vec2 = XVECTOR_DATA (obj) [i];
|
|
|
839 CHECK_VECTOR (vec2);
|
|
|
840 if (XVECTOR_LENGTH (vec2) != 2)
|
|
|
841 signal_error (Qerror, list2 (build_string
|
|
|
842 ("vectors must be of length 2"),
|
|
|
843 vec2));
|
|
|
844 XVECTOR_DATA (vec) [i] = make_vector (2, Qnil);
|
|
|
845 XVECTOR_DATA (XVECTOR_DATA (vec) [i]) [0] = XVECTOR_DATA (vec2) [0];
|
|
|
846 XVECTOR_DATA (XVECTOR_DATA (vec) [i]) [1] = XVECTOR_DATA (vec2) [1];
|
|
|
847 }
|
|
|
848 return vec;
|
|
|
849 }
|
|
|
850
|
|
|
851 #endif /* 0 */
|
|
|
852
|
|
|
853
|
|
|
854 static Window reading_selection_reply;
|
|
|
855 static Atom reading_which_selection;
|
|
|
856 static int selection_reply_timed_out;
|
|
|
857
|
|
|
858 static int
|
|
|
859 selection_reply_done (void *ignore)
|
|
|
860 {
|
|
|
861 return !reading_selection_reply;
|
|
|
862 }
|
|
|
863
|
|
|
864 static Lisp_Object Qx_selection_reply_timeout_internal;
|
|
|
865
|
|
|
866 DEFUN ("x-selection-reply-timeout-internal", Fx_selection_reply_timeout_internal,
|
|
|
867 1, 1, 0, /*
|
|
|
868 */
|
|
|
869 (arg))
|
|
|
870 {
|
|
|
871 selection_reply_timed_out = 1;
|
|
|
872 reading_selection_reply = 0;
|
|
|
873 return Qnil;
|
|
|
874 }
|
|
|
875
|
|
|
876
|
|
|
877 /* Do protocol to read selection-data from the server.
|
|
|
878 Converts this to lisp data and returns it.
|
|
|
879 */
|
|
|
880 static Lisp_Object
|
|
|
881 x_get_foreign_selection (Lisp_Object selection_symbol, Lisp_Object target_type)
|
|
|
882 {
|
|
|
883 /* This function can GC */
|
|
|
884 struct device *d = decode_x_device (Qnil);
|
|
|
885 Display *display = DEVICE_X_DISPLAY (d);
|
|
|
886 struct frame *sel_frame = selected_frame ();
|
|
|
887 Window requestor_window = XtWindow (FRAME_X_TEXT_WIDGET (sel_frame));
|
|
|
888 Time requestor_time = DEVICE_X_MOUSE_TIMESTAMP (d);
|
|
|
889 Atom target_property = DEVICE_XATOM_EMACS_TMP (d);
|
|
|
890 Atom selection_atom = symbol_to_x_atom (d, selection_symbol, 0);
|
|
|
891 int speccount;
|
|
|
892 Atom type_atom = symbol_to_x_atom (d, (CONSP (target_type) ?
|
|
|
893 XCAR (target_type) : target_type), 0);
|
|
|
894
|
|
|
895 XConvertSelection (display, selection_atom, type_atom, target_property,
|
|
|
896 requestor_window, requestor_time);
|
|
|
897
|
|
|
898 /* Block until the reply has been read. */
|
|
|
899 reading_selection_reply = requestor_window;
|
|
|
900 reading_which_selection = selection_atom;
|
|
|
901 selection_reply_timed_out = 0;
|
|
|
902
|
|
|
903 speccount = specpdl_depth ();
|
|
|
904
|
|
|
905 /* add a timeout handler */
|
|
|
906 if (x_selection_timeout > 0)
|
|
|
907 {
|
|
|
908 Lisp_Object id = Fadd_timeout (make_int (x_selection_timeout),
|
|
|
909 Qx_selection_reply_timeout_internal,
|
|
|
910 Qnil, Qnil);
|
|
|
911 record_unwind_protect (Fdisable_timeout, id);
|
|
|
912 }
|
|
|
913
|
|
|
914 /* This is ^Gable */
|
|
|
915 wait_delaying_user_input (selection_reply_done, 0);
|
|
|
916
|
|
|
917 if (selection_reply_timed_out)
|
|
|
918 error ("timed out waiting for reply from selection owner");
|
|
|
919
|
|
|
920 unbind_to (speccount, Qnil);
|
|
|
921
|
|
|
922 /* otherwise, the selection is waiting for us on the requested property. */
|
|
|
923 return
|
|
|
924 x_get_window_property_as_lisp_data (display, requestor_window,
|
|
|
925 target_property, target_type,
|
|
|
926 selection_atom);
|
|
|
927 }
|
|
|
928
|
|
|
929
|
|
|
930 static void
|
|
|
931 x_get_window_property (Display *display, Window window, Atom property,
|
|
|
932 unsigned char **data_ret, int *bytes_ret,
|
|
|
933 Atom *actual_type_ret, int *actual_format_ret,
|
|
|
934 unsigned long *actual_size_ret, int delete_p)
|
|
|
935 {
|
|
|
936 int total_size;
|
|
|
937 unsigned long bytes_remaining;
|
|
|
938 int offset = 0;
|
|
|
939 unsigned char *tmp_data = 0;
|
|
|
940 int result;
|
|
|
941 int buffer_size = SELECTION_QUANTUM (display);
|
|
|
942 if (buffer_size > MAX_SELECTION_QUANTUM) buffer_size = MAX_SELECTION_QUANTUM;
|
|
|
943
|
|
|
944 /* First probe the thing to find out how big it is. */
|
|
|
945 result = XGetWindowProperty (display, window, property,
|
|
|
946 0, 0, False, AnyPropertyType,
|
|
|
947 actual_type_ret, actual_format_ret,
|
|
|
948 actual_size_ret,
|
|
|
949 &bytes_remaining, &tmp_data);
|
|
|
950 if (result != Success)
|
|
|
951 {
|
|
|
952 *data_ret = 0;
|
|
|
953 *bytes_ret = 0;
|
|
|
954 return;
|
|
|
955 }
|
|
|
956 XFree ((char *) tmp_data);
|
|
|
957
|
|
|
958 if (*actual_type_ret == None || *actual_format_ret == 0)
|
|
|
959 {
|
|
|
960 if (delete_p) XDeleteProperty (display, window, property);
|
|
|
961 *data_ret = 0;
|
|
|
962 *bytes_ret = 0;
|
|
|
963 return;
|
|
|
964 }
|
|
|
965
|
|
|
966 total_size = bytes_remaining + 1;
|
|
|
967 *data_ret = (unsigned char *) xmalloc (total_size);
|
|
|
968
|
|
|
969 /* Now read, until we've gotten it all. */
|
|
|
970 while (bytes_remaining)
|
|
|
971 {
|
|
|
972 #if 0
|
|
|
973 int last = bytes_remaining;
|
|
|
974 #endif
|
|
|
975 result =
|
|
|
976 XGetWindowProperty (display, window, property,
|
|
|
977 offset/4, buffer_size/4,
|
|
|
978 (delete_p ? True : False),
|
|
|
979 AnyPropertyType,
|
|
|
980 actual_type_ret, actual_format_ret,
|
|
|
981 actual_size_ret, &bytes_remaining, &tmp_data);
|
|
|
982 #if 0
|
|
|
983 stderr_out ("<< read %d\n", last-bytes_remaining);
|
|
|
984 #endif
|
|
|
985 /* If this doesn't return Success at this point, it means that
|
|
|
986 some clod deleted the selection while we were in the midst of
|
|
|
987 reading it. Deal with that, I guess....
|
|
|
988 */
|
|
|
989 if (result != Success) break;
|
|
|
990 *actual_size_ret *= *actual_format_ret / 8;
|
|
|
991 memcpy ((*data_ret) + offset, tmp_data, *actual_size_ret);
|
|
|
992 offset += *actual_size_ret;
|
|
|
993 XFree ((char *) tmp_data);
|
|
|
994 }
|
|
|
995 *bytes_ret = offset;
|
|
|
996 }
|
|
|
997
|
|
|
998
|
|
|
999 static void
|
|
|
1000 receive_incremental_selection (Display *display, Window window, Atom property,
|
|
|
1001 /* this one is for error messages only */
|
|
|
1002 Lisp_Object target_type,
|
|
|
1003 unsigned int min_size_bytes,
|
|
|
1004 unsigned char **data_ret, int *size_bytes_ret,
|
|
|
1005 Atom *type_ret, int *format_ret,
|
|
|
1006 unsigned long *size_ret)
|
|
|
1007 {
|
|
|
1008 /* This function can GC */
|
|
|
1009 int offset = 0;
|
|
|
1010 int prop_id;
|
|
|
1011 *size_bytes_ret = min_size_bytes;
|
|
|
1012 *data_ret = (unsigned char *) xmalloc (*size_bytes_ret);
|
|
|
1013 #if 0
|
|
|
1014 stderr_out ("\nread INCR %d\n", min_size_bytes);
|
|
|
1015 #endif
|
|
|
1016 /* At this point, we have read an INCR property, and deleted it (which
|
|
|
1017 is how we ack its receipt: the sending window will be selecting
|
|
|
1018 PropertyNotify events on our window to notice this).
|
|
|
1019
|
|
|
1020 Now, we must loop, waiting for the sending window to put a value on
|
|
|
1021 that property, then reading the property, then deleting it to ack.
|
|
|
1022 We are done when the sender places a property of length 0.
|
|
|
1023 */
|
|
|
1024 prop_id = expect_property_change (display, window, property,
|
|
|
1025 PropertyNewValue);
|
|
|
1026 while (1)
|
|
|
1027 {
|
|
|
1028 unsigned char *tmp_data;
|
|
|
1029 int tmp_size_bytes;
|
|
|
1030 wait_for_property_change (prop_id);
|
|
|
1031 /* expect it again immediately, because x_get_window_property may
|
|
|
1032 .. no it won't, I don't get it.
|
|
|
1033 .. Ok, I get it now, the Xt code that implements INCR is broken.
|
|
|
1034 */
|
|
|
1035 prop_id = expect_property_change (display, window, property,
|
|
|
1036 PropertyNewValue);
|
|
|
1037 x_get_window_property (display, window, property,
|
|
|
1038 &tmp_data, &tmp_size_bytes,
|
|
|
1039 type_ret, format_ret, size_ret, 1);
|
|
|
1040
|
|
|
1041 if (tmp_size_bytes == 0) /* we're done */
|
|
|
1042 {
|
|
|
1043 #if 0
|
|
|
1044 stderr_out (" read INCR done\n");
|
|
|
1045 #endif
|
|
|
1046 unexpect_property_change (prop_id);
|
|
|
1047 if (tmp_data) xfree (tmp_data);
|
|
|
1048 break;
|
|
|
1049 }
|
|
|
1050 #if 0
|
|
|
1051 stderr_out (" read INCR %d\n", tmp_size_bytes);
|
|
|
1052 #endif
|
|
|
1053 if (*size_bytes_ret < offset + tmp_size_bytes)
|
|
|
1054 {
|
|
|
1055 #if 0
|
|
|
1056 stderr_out (" read INCR realloc %d -> %d\n",
|
|
|
1057 *size_bytes_ret, offset + tmp_size_bytes);
|
|
|
1058 #endif
|
|
|
1059 *size_bytes_ret = offset + tmp_size_bytes;
|
|
|
1060 *data_ret = (unsigned char *) xrealloc (*data_ret, *size_bytes_ret);
|
|
|
1061 }
|
|
|
1062 memcpy ((*data_ret) + offset, tmp_data, tmp_size_bytes);
|
|
|
1063 offset += tmp_size_bytes;
|
|
|
1064 xfree (tmp_data);
|
|
|
1065 }
|
|
|
1066 }
|
|
|
1067
|
|
|
1068
|
|
|
1069 static Lisp_Object
|
|
|
1070 x_get_window_property_as_lisp_data (Display *display,
|
|
|
1071 Window window,
|
|
|
1072 Atom property,
|
|
|
1073 /* next two for error messages only */
|
|
|
1074 Lisp_Object target_type,
|
|
|
1075 Atom selection_atom)
|
|
|
1076 {
|
|
|
1077 /* This function can GC */
|
|
|
1078 Atom actual_type;
|
|
|
1079 int actual_format;
|
|
|
1080 unsigned long actual_size;
|
|
|
1081 unsigned char *data = NULL;
|
|
|
1082 int bytes = 0;
|
|
|
1083 Lisp_Object val;
|
|
|
1084 struct device *d = get_device_from_display (display);
|
|
|
1085
|
|
|
1086 x_get_window_property (display, window, property, &data, &bytes,
|
|
|
1087 &actual_type, &actual_format, &actual_size, 1);
|
|
|
1088 if (! data)
|
|
|
1089 {
|
|
|
1090 if (XGetSelectionOwner (display, selection_atom))
|
|
|
1091 /* there is a selection owner */
|
|
|
1092 signal_error
|
|
|
1093 (Qselection_conversion_error,
|
|
|
1094 Fcons (build_string ("selection owner couldn't convert"),
|
|
|
1095 Fcons (x_atom_to_symbol (d, selection_atom),
|
|
|
1096 actual_type ?
|
|
|
1097 list2 (target_type, x_atom_to_symbol (d, actual_type)) :
|
|
|
1098 list1 (target_type))));
|
|
|
1099 else
|
|
|
1100 signal_error (Qerror,
|
|
|
1101 list2 (build_string ("no selection"),
|
|
|
1102 x_atom_to_symbol (d, selection_atom)));
|
|
|
1103 }
|
|
|
1104
|
|
|
1105 if (actual_type == DEVICE_XATOM_INCR (d))
|
|
|
1106 {
|
|
|
1107 /* Ok, that data wasn't *the* data, it was just the beginning. */
|
|
|
1108
|
|
|
1109 unsigned int min_size_bytes = * ((unsigned int *) data);
|
|
|
1110 xfree (data);
|
|
|
1111 receive_incremental_selection (display, window, property, target_type,
|
|
|
1112 min_size_bytes, &data, &bytes,
|
|
|
1113 &actual_type, &actual_format,
|
|
|
1114 &actual_size);
|
|
|
1115 }
|
|
|
1116
|
|
|
1117 /* It's been read. Now convert it to a lisp object in some semi-rational
|
|
|
1118 manner. */
|
|
|
1119 val = selection_data_to_lisp_data (d, data, bytes,
|
|
|
1120 actual_type, actual_format);
|
|
|
1121
|
|
|
1122 xfree (data);
|
|
|
1123 return val;
|
|
|
1124 }
|
|
|
1125
|
|
|
1126 /* These functions convert from the selection data read from the server into
|
|
|
1127 something that we can use from elisp, and vice versa.
|
|
|
1128
|
|
|
1129 Type: Format: Size: Elisp Type:
|
|
|
1130 ----- ------- ----- -----------
|
|
|
1131 * 8 * String
|
|
|
1132 ATOM 32 1 Symbol
|
|
|
1133 ATOM 32 > 1 Vector of Symbols
|
|
|
1134 * 16 1 Integer
|
|
|
1135 * 16 > 1 Vector of Integers
|
|
|
1136 * 32 1 if <=16 bits: Integer
|
|
|
1137 if > 16 bits: Cons of top16, bot16
|
|
|
1138 * 32 > 1 Vector of the above
|
|
|
1139
|
|
|
1140 When converting a Lisp number to C, it is assumed to be of format 16 if
|
|
|
1141 it is an integer, and of format 32 if it is a cons of two integers.
|
|
|
1142
|
|
|
1143 When converting a vector of numbers from Elisp to C, it is assumed to be
|
|
|
1144 of format 16 if every element in the vector is an integer, and is assumed
|
|
|
1145 to be of format 32 if any element is a cons of two integers.
|
|
|
1146
|
|
|
1147 When converting an object to C, it may be of the form (SYMBOL . <data>)
|
|
|
1148 where SYMBOL is what we should claim that the type is. Format and
|
|
|
1149 representation are as above.
|
|
|
1150
|
|
|
1151 NOTE: Under Mule, when someone shoves us a string without a type, we
|
|
|
1152 set the type to 'COMPOUND_TEXT and automatically convert to Compound
|
|
|
1153 Text. If the string has a type, we assume that the user wants the
|
|
|
1154 data sent as-is so we just do "binary" conversion.
|
|
|
1155 */
|
|
|
1156
|
|
|
1157
|
|
|
1158 static Lisp_Object
|
|
|
1159 selection_data_to_lisp_data (struct device *d,
|
|
|
1160 unsigned char *data,
|
|
|
1161 size_t size,
|
|
|
1162 Atom type,
|
|
|
1163 int format)
|
|
|
1164 {
|
|
|
1165 if (type == DEVICE_XATOM_NULL (d))
|
|
|
1166 return QNULL;
|
|
|
1167
|
|
|
1168 /* Convert any 8-bit data to a string, for compactness. */
|
|
|
1169 else if (format == 8)
|
|
|
1170 return make_ext_string (data, size,
|
|
|
1171 type == DEVICE_XATOM_TEXT (d) ||
|
|
|
1172 type == DEVICE_XATOM_COMPOUND_TEXT (d)
|
|
|
1173 ? Qctext : Qbinary);
|
|
|
1174
|
|
|
1175 /* Convert a single atom to a Lisp Symbol.
|
|
|
1176 Convert a set of atoms to a vector of symbols. */
|
|
|
1177 else if (type == XA_ATOM)
|
|
|
1178 {
|
|
|
1179 if (size == sizeof (Atom))
|
|
|
1180 return x_atom_to_symbol (d, *((Atom *) data));
|
|
|
1181 else
|
|
|
1182 {
|
|
|
1183 int i;
|
|
|
1184 int len = size / sizeof (Atom);
|
|
|
1185 Lisp_Object v = Fmake_vector (make_int (len), Qzero);
|
|
|
1186 for (i = 0; i < len; i++)
|
|
|
1187 Faset (v, make_int (i), x_atom_to_symbol (d, ((Atom *) data) [i]));
|
|
|
1188 return v;
|
|
|
1189 }
|
|
|
1190 }
|
|
|
1191
|
|
|
1192 /* Convert a single 16 or small 32 bit number to a Lisp Int.
|
|
|
1193 If the number is > 16 bits, convert it to a cons of integers,
|
|
|
1194 16 bits in each half.
|
|
|
1195 */
|
|
|
1196 else if (format == 32 && size == sizeof (long))
|
|
|
1197 return word_to_lisp (((unsigned long *) data) [0]);
|
|
|
1198 else if (format == 16 && size == sizeof (short))
|
|
|
1199 return make_int ((int) (((unsigned short *) data) [0]));
|
|
|
1200
|
|
|
1201 /* Convert any other kind of data to a vector of numbers, represented
|
|
|
1202 as above (as an integer, or a cons of two 16 bit integers).
|
|
|
1203
|
|
|
1204 #### Perhaps we should return the actual type to lisp as well.
|
|
|
1205
|
|
|
1206 (x-get-selection-internal 'PRIMARY 'LINE_NUMBER)
|
|
|
1207 ==> [4 4]
|
|
|
1208
|
|
|
1209 and perhaps it should be
|
|
|
1210
|
|
|
1211 (x-get-selection-internal 'PRIMARY 'LINE_NUMBER)
|
|
|
1212 ==> (SPAN . [4 4])
|
|
|
1213
|
|
|
1214 Right now the fact that the return type was SPAN is discarded before
|
|
|
1215 lisp code gets to see it.
|
|
|
1216 */
|
|
|
1217 else if (format == 16)
|
|
|
1218 {
|
|
|
1219 int i;
|
|
|
1220 Lisp_Object v = make_vector (size / 4, Qzero);
|
|
|
1221 for (i = 0; i < (int) size / 4; i++)
|
|
|
1222 {
|
|
|
1223 int j = (int) ((unsigned short *) data) [i];
|
|
|
1224 Faset (v, make_int (i), make_int (j));
|
|
|
1225 }
|
|
|
1226 return v;
|
|
|
1227 }
|
|
|
1228 else
|
|
|
1229 {
|
|
|
1230 int i;
|
|
|
1231 Lisp_Object v = make_vector (size / 4, Qzero);
|
|
|
1232 for (i = 0; i < (int) size / 4; i++)
|
|
|
1233 {
|
|
|
1234 unsigned long j = ((unsigned long *) data) [i];
|
|
|
1235 Faset (v, make_int (i), word_to_lisp (j));
|
|
|
1236 }
|
|
|
1237 return v;
|
|
|
1238 }
|
|
|
1239 }
|
|
|
1240
|
|
|
1241
|
|
|
1242 static void
|
|
|
1243 lisp_data_to_selection_data (struct device *d,
|
|
|
1244 Lisp_Object obj,
|
|
|
1245 unsigned char **data_ret,
|
|
|
1246 Atom *type_ret,
|
|
|
1247 unsigned int *size_ret,
|
|
|
1248 int *format_ret)
|
|
|
1249 {
|
|
|
1250 Lisp_Object type = Qnil;
|
|
|
1251
|
|
|
1252 if (CONSP (obj) && SYMBOLP (XCAR (obj)))
|
|
|
1253 {
|
|
|
1254 type = XCAR (obj);
|
|
|
1255 obj = XCDR (obj);
|
|
|
1256 if (CONSP (obj) && NILP (XCDR (obj)))
|
|
|
1257 obj = XCAR (obj);
|
|
|
1258 }
|
|
|
1259
|
|
|
1260 if (EQ (obj, QNULL) || (EQ (type, QNULL)))
|
|
|
1261 { /* This is not the same as declining */
|
|
|
1262 *format_ret = 32;
|
|
|
1263 *size_ret = 0;
|
|
|
1264 *data_ret = 0;
|
|
|
1265 type = QNULL;
|
|
|
1266 }
|
|
|
1267 else if (STRINGP (obj))
|
|
|
1268 {
|
|
|
1269 const Extbyte *extval;
|
|
|
1270 Extcount extvallen;
|
|
|
1271
|
|
|
1272 TO_EXTERNAL_FORMAT (LISP_STRING, obj,
|
|
|
1273 ALLOCA, (extval, extvallen),
|
|
|
1274 (NILP (type) ? Qctext : Qbinary));
|
|
|
1275 *format_ret = 8;
|
|
|
1276 *size_ret = extvallen;
|
|
|
1277 *data_ret = (unsigned char *) xmalloc (*size_ret);
|
|
|
1278 memcpy (*data_ret, extval, *size_ret);
|
|
|
1279 #ifdef MULE
|
|
|
1280 if (NILP (type)) type = QCOMPOUND_TEXT;
|
|
|
1281 #else
|
|
|
1282 if (NILP (type)) type = QSTRING;
|
|
|
1283 #endif
|
|
|
1284 }
|
|
|
1285 else if (CHARP (obj))
|
|
|
1286 {
|
|
|
1287 Bufbyte buf[MAX_EMCHAR_LEN];
|
|
|
1288 Bytecount len;
|
|
|
1289 const Extbyte *extval;
|
|
|
1290 Extcount extvallen;
|
|
|
1291
|
|
|
1292 *format_ret = 8;
|
|
|
1293 len = set_charptr_emchar (buf, XCHAR (obj));
|
|
|
1294 TO_EXTERNAL_FORMAT (DATA, (buf, len),
|
|
|
1295 ALLOCA, (extval, extvallen),
|
|
|
1296 Qctext);
|
|
|
1297 *size_ret = extvallen;
|
|
|
1298 *data_ret = (unsigned char *) xmalloc (*size_ret);
|
|
|
1299 memcpy (*data_ret, extval, *size_ret);
|
|
|
1300 #ifdef MULE
|
|
|
1301 if (NILP (type)) type = QCOMPOUND_TEXT;
|
|
|
1302 #else
|
|
|
1303 if (NILP (type)) type = QSTRING;
|
|
|
1304 #endif
|
|
|
1305 }
|
|
|
1306 else if (SYMBOLP (obj))
|
|
|
1307 {
|
|
|
1308 *format_ret = 32;
|
|
|
1309 *size_ret = 1;
|
|
|
1310 *data_ret = (unsigned char *) xmalloc (sizeof (Atom) + 1);
|
|
|
1311 (*data_ret) [sizeof (Atom)] = 0;
|
|
|
1312 (*(Atom **) data_ret) [0] = symbol_to_x_atom (d, obj, 0);
|
|
|
1313 if (NILP (type)) type = QATOM;
|
|
|
1314 }
|
|
|
1315 else if (INTP (obj) &&
|
|
|
1316 XINT (obj) <= 0x7FFF &&
|
|
|
1317 XINT (obj) >= -0x8000)
|
|
|
1318 {
|
|
|
1319 *format_ret = 16;
|
|
|
1320 *size_ret = 1;
|
|
|
1321 *data_ret = (unsigned char *) xmalloc (sizeof (short) + 1);
|
|
|
1322 (*data_ret) [sizeof (short)] = 0;
|
|
|
1323 (*(short **) data_ret) [0] = (short) XINT (obj);
|
|
|
1324 if (NILP (type)) type = QINTEGER;
|
|
|
1325 }
|
|
|
1326 else if (INTP (obj) || CONSP (obj))
|
|
|
1327 {
|
|
|
1328 *format_ret = 32;
|
|
|
1329 *size_ret = 1;
|
|
|
1330 *data_ret = (unsigned char *) xmalloc (sizeof (long) + 1);
|
|
|
1331 (*data_ret) [sizeof (long)] = 0;
|
|
|
1332 (*(unsigned long **) data_ret) [0] = lisp_to_word (obj);
|
|
|
1333 if (NILP (type)) type = QINTEGER;
|
|
|
1334 }
|
|
|
1335 else if (VECTORP (obj))
|
|
|
1336 {
|
|
|
1337 /* Lisp Vectors may represent a set of ATOMs;
|
|
|
1338 a set of 16 or 32 bit INTEGERs;
|
|
|
1339 or a set of ATOM_PAIRs (represented as [[A1 A2] [A3 A4] ...]
|
|
|
1340 */
|
|
|
1341 int i;
|
|
|
1342
|
|
|
1343 if (SYMBOLP (XVECTOR_DATA (obj) [0]))
|
|
|
1344 /* This vector is an ATOM set */
|
|
|
1345 {
|
|
|
1346 if (NILP (type)) type = QATOM;
|
|
|
1347 *size_ret = XVECTOR_LENGTH (obj);
|
|
|
1348 *format_ret = 32;
|
|
|
1349 *data_ret = (unsigned char *) xmalloc ((*size_ret) * sizeof (Atom));
|
|
|
1350 for (i = 0; i < (int) (*size_ret); i++)
|
|
|
1351 if (SYMBOLP (XVECTOR_DATA (obj) [i]))
|
|
|
1352 (*(Atom **) data_ret) [i] =
|
|
|
1353 symbol_to_x_atom (d, XVECTOR_DATA (obj) [i], 0);
|
|
|
1354 else
|
|
|
1355 signal_error (Qerror, /* Qselection_error */
|
|
|
1356 list2 (build_string
|
|
|
1357 ("all elements of the vector must be of the same type"),
|
|
|
1358 obj));
|
|
|
1359 }
|
|
|
1360 #if 0 /* #### MULTIPLE doesn't work yet */
|
|
|
1361 else if (VECTORP (XVECTOR_DATA (obj) [0]))
|
|
|
1362 /* This vector is an ATOM_PAIR set */
|
|
|
1363 {
|
|
|
1364 if (NILP (type)) type = QATOM_PAIR;
|
|
|
1365 *size_ret = XVECTOR_LENGTH (obj);
|
|
|
1366 *format_ret = 32;
|
|
|
1367 *data_ret = (unsigned char *)
|
|
|
1368 xmalloc ((*size_ret) * sizeof (Atom) * 2);
|
|
|
1369 for (i = 0; i < *size_ret; i++)
|
|
|
1370 if (VECTORP (XVECTOR_DATA (obj) [i]))
|
|
|
1371 {
|
|
|
1372 Lisp_Object pair = XVECTOR_DATA (obj) [i];
|
|
|
1373 if (XVECTOR_LENGTH (pair) != 2)
|
|
|
1374 signal_error (Qerror,
|
|
|
1375 list2 (build_string
|
|
|
1376 ("elements of the vector must be vectors of exactly two elements"),
|
|
|
1377 pair));
|
|
|
1378
|
|
|
1379 (*(Atom **) data_ret) [i * 2] =
|
|
|
1380 symbol_to_x_atom (d, XVECTOR_DATA (pair) [0], 0);
|
|
|
1381 (*(Atom **) data_ret) [(i * 2) + 1] =
|
|
|
1382 symbol_to_x_atom (d, XVECTOR_DATA (pair) [1], 0);
|
|
|
1383 }
|
|
|
1384 else
|
|
|
1385 signal_error (Qerror,
|
|
|
1386 list2 (build_string
|
|
|
1387 ("all elements of the vector must be of the same type"),
|
|
|
1388 obj));
|
|
|
1389 }
|
|
|
1390 #endif
|
|
|
1391 else
|
|
|
1392 /* This vector is an INTEGER set, or something like it */
|
|
|
1393 {
|
|
|
1394 *size_ret = XVECTOR_LENGTH (obj);
|
|
|
1395 if (NILP (type)) type = QINTEGER;
|
|
|
1396 *format_ret = 16;
|
|
|
1397 for (i = 0; i < (int) (*size_ret); i++)
|
|
|
1398 if (CONSP (XVECTOR_DATA (obj) [i]))
|
|
|
1399 *format_ret = 32;
|
|
|
1400 else if (!INTP (XVECTOR_DATA (obj) [i]))
|
|
|
1401 signal_error (Qerror, /* Qselection_error */
|
|
|
1402 list2 (build_string
|
|
|
1403 ("all elements of the vector must be integers or conses of integers"),
|
|
|
1404 obj));
|
|
|
1405
|
|
|
1406 *data_ret = (unsigned char *) xmalloc (*size_ret * (*format_ret/8));
|
|
|
1407 for (i = 0; i < (int) (*size_ret); i++)
|
|
|
1408 if (*format_ret == 32)
|
|
|
1409 (*((unsigned long **) data_ret)) [i] =
|
|
|
1410 lisp_to_word (XVECTOR_DATA (obj) [i]);
|
|
|
1411 else
|
|
|
1412 (*((unsigned short **) data_ret)) [i] =
|
|
|
1413 (unsigned short) lisp_to_word (XVECTOR_DATA (obj) [i]);
|
|
|
1414 }
|
|
|
1415 }
|
|
|
1416 else
|
|
|
1417 signal_error (Qerror, /* Qselection_error */
|
|
|
1418 list2 (build_string ("unrecognized selection data"),
|
|
|
1419 obj));
|
|
|
1420
|
|
|
1421 *type_ret = symbol_to_x_atom (d, type, 0);
|
|
|
1422 }
|
|
|
1423
|
|
|
1424
|
|
|
1425
|
|
|
1426 /* Called from the event loop to handle SelectionNotify events.
|
|
|
1427 I don't think this needs to be reentrant.
|
|
|
1428 */
|
|
|
1429 void
|
|
|
1430 x_handle_selection_notify (XSelectionEvent *event)
|
|
|
1431 {
|
|
|
1432 if (! reading_selection_reply)
|
|
|
1433 message ("received an unexpected SelectionNotify event");
|
|
|
1434 else if (event->requestor != reading_selection_reply)
|
|
|
1435 message ("received a SelectionNotify event for the wrong window");
|
|
|
1436 else if (event->selection != reading_which_selection)
|
|
|
1437 message ("received the wrong selection type in SelectionNotify!");
|
|
|
1438 else
|
|
|
1439 reading_selection_reply = 0; /* we're done now. */
|
|
|
1440 }
|
|
|
1441
|
|
|
1442 static void
|
|
|
1443 x_disown_selection (Lisp_Object selection, Lisp_Object timeval)
|
|
|
1444 {
|
|
|
1445 struct device *d = decode_x_device (Qnil);
|
|
|
1446 Display *display = DEVICE_X_DISPLAY (d);
|
|
|
1447 Time timestamp;
|
|
|
1448 Atom selection_atom;
|
|
|
1449
|
|
|
1450 CHECK_SYMBOL (selection);
|
|
|
1451 if (NILP (timeval))
|
|
|
1452 timestamp = DEVICE_X_MOUSE_TIMESTAMP (d);
|
|
|
1453 else
|
|
|
1454 {
|
|
|
1455 /* #### This is bogus. See the comment above about problems
|
|
|
1456 on OSF/1 and DEC Alphas. Yet another reason why it sucks
|
|
|
1457 to have the implementation (i.e. cons of two 16-bit
|
|
|
1458 integers) exposed. */
|
|
|
1459 time_t the_time;
|
|
|
1460 lisp_to_time (timeval, &the_time);
|
|
|
1461 timestamp = (Time) the_time;
|
|
|
1462 }
|
|
|
1463
|
|
|
1464 selection_atom = symbol_to_x_atom (d, selection, 0);
|
|
|
1465
|
|
|
1466 XSetSelectionOwner (display, selection_atom, None, timestamp);
|
|
|
1467 }
|
|
|
1468
|
|
|
1469 static Lisp_Object
|
|
|
1470 x_selection_exists_p (Lisp_Object selection)
|
|
|
1471 {
|
|
|
1472 struct device *d = decode_x_device (Qnil);
|
|
|
1473 Display *dpy = DEVICE_X_DISPLAY (d);
|
|
|
1474 return XGetSelectionOwner (dpy, symbol_to_x_atom (d, selection, 0)) != None ?
|
|
|
1475 Qt : Qnil;
|
|
|
1476 }
|
|
|
1477
|
|
|
1478
|
|
|
1479 #ifdef CUT_BUFFER_SUPPORT
|
|
|
1480
|
|
|
1481 static int cut_buffers_initialized; /* Whether we're sure they all exist */
|
|
|
1482
|
|
|
1483 /* Ensure that all 8 cut buffers exist. ICCCM says we gotta... */
|
|
|
1484 static void
|
|
|
1485 initialize_cut_buffers (Display *display, Window window)
|
|
|
1486 {
|
|
|
1487 static unsigned const char * const data = (unsigned const char *) "";
|
|
|
1488 #define FROB(atom) XChangeProperty (display, window, atom, XA_STRING, 8, \
|
|
|
1489 PropModeAppend, data, 0)
|
|
|
1490 FROB (XA_CUT_BUFFER0);
|
|
|
1491 FROB (XA_CUT_BUFFER1);
|
|
|
1492 FROB (XA_CUT_BUFFER2);
|
|
|
1493 FROB (XA_CUT_BUFFER3);
|
|
|
1494 FROB (XA_CUT_BUFFER4);
|
|
|
1495 FROB (XA_CUT_BUFFER5);
|
|
|
1496 FROB (XA_CUT_BUFFER6);
|
|
|
1497 FROB (XA_CUT_BUFFER7);
|
|
|
1498 #undef FROB
|
|
|
1499 cut_buffers_initialized = 1;
|
|
|
1500 }
|
|
|
1501
|
|
|
1502 #define CHECK_CUTBUFFER(symbol) do { \
|
|
|
1503 CHECK_SYMBOL (symbol); \
|
|
|
1504 if (! (EQ (symbol, QCUT_BUFFER0) || \
|
|
|
1505 EQ (symbol, QCUT_BUFFER1) || \
|
|
|
1506 EQ (symbol, QCUT_BUFFER2) || \
|
|
|
1507 EQ (symbol, QCUT_BUFFER3) || \
|
|
|
1508 EQ (symbol, QCUT_BUFFER4) || \
|
|
|
1509 EQ (symbol, QCUT_BUFFER5) || \
|
|
|
1510 EQ (symbol, QCUT_BUFFER6) || \
|
|
|
1511 EQ (symbol, QCUT_BUFFER7))) \
|
|
|
1512 signal_simple_error ("Doesn't name a cutbuffer", symbol); \
|
|
|
1513 } while (0)
|
|
|
1514
|
|
|
1515 DEFUN ("x-get-cutbuffer-internal", Fx_get_cutbuffer_internal, 1, 1, 0, /*
|
|
|
1516 Return the value of the named CUTBUFFER (typically CUT_BUFFER0).
|
|
|
1517 */
|
|
|
1518 (cutbuffer))
|
|
|
1519 {
|
|
|
1520 struct device *d = decode_x_device (Qnil);
|
|
|
1521 Display *display = DEVICE_X_DISPLAY (d);
|
|
|
1522 Window window = RootWindow (display, 0); /* Cutbuffers are on frame 0 */
|
|
|
1523 Atom cut_buffer_atom;
|
|
|
1524 unsigned char *data;
|
|
|
1525 int bytes;
|
|
|
1526 Atom type;
|
|
|
1527 int format;
|
|
|
1528 unsigned long size;
|
|
|
1529 Lisp_Object ret;
|
|
|
1530
|
|
|
1531 CHECK_CUTBUFFER (cutbuffer);
|
|
|
1532 cut_buffer_atom = symbol_to_x_atom (d, cutbuffer, 0);
|
|
|
1533
|
|
|
1534 x_get_window_property (display, window, cut_buffer_atom, &data, &bytes,
|
|
|
1535 &type, &format, &size, 0);
|
|
|
1536 if (!data) return Qnil;
|
|
|
1537
|
|
|
1538 if (format != 8 || type != XA_STRING)
|
|
|
1539 signal_simple_error_2 ("Cut buffer doesn't contain 8-bit STRING data",
|
|
|
1540 x_atom_to_symbol (d, type),
|
|
|
1541 make_int (format));
|
|
|
1542
|
|
|
1543 /* We cheat - if the string contains an ESC character, that's
|
|
|
1544 technically not allowed in a STRING, so we assume it's
|
|
|
1545 COMPOUND_TEXT that we stored there ourselves earlier,
|
|
|
1546 in x-store-cutbuffer-internal */
|
|
|
1547 ret = (bytes ?
|
|
|
1548 make_ext_string (data, bytes,
|
|
|
1549 memchr (data, 0x1b, bytes) ?
|
|
|
1550 Qctext : Qbinary)
|
|
|
1551 : Qnil);
|
|
|
1552 xfree (data);
|
|
|
1553 return ret;
|
|
|
1554 }
|
|
|
1555
|
|
|
1556
|
|
|
1557 DEFUN ("x-store-cutbuffer-internal", Fx_store_cutbuffer_internal, 2, 2, 0, /*
|
|
|
1558 Set the value of the named CUTBUFFER (typically CUT_BUFFER0) to STRING.
|
|
|
1559 */
|
|
|
1560 (cutbuffer, string))
|
|
|
1561 {
|
|
|
1562 struct device *d = decode_x_device (Qnil);
|
|
|
1563 Display *display = DEVICE_X_DISPLAY (d);
|
|
|
1564 Window window = RootWindow (display, 0); /* Cutbuffers are on frame 0 */
|
|
|
1565 Atom cut_buffer_atom;
|
|
|
1566 const Extbyte *data = XSTRING_DATA (string);
|
|
|
1567 Extcount bytes = XSTRING_LENGTH (string);
|
|
|
1568 Extcount bytes_remaining;
|
|
|
1569 int max_bytes = SELECTION_QUANTUM (display);
|
|
|
1570 #ifdef MULE
|
|
|
1571 const Bufbyte *ptr, *end;
|
|
|
1572 enum { ASCII, LATIN_1, WORLD } chartypes = ASCII;
|
|
|
1573 #endif
|
|
|
1574
|
|
|
1575 if (max_bytes > MAX_SELECTION_QUANTUM)
|
|
|
1576 max_bytes = MAX_SELECTION_QUANTUM;
|
|
|
1577
|
|
|
1578 CHECK_CUTBUFFER (cutbuffer);
|
|
|
1579 CHECK_STRING (string);
|
|
|
1580 cut_buffer_atom = symbol_to_x_atom (d, cutbuffer, 0);
|
|
|
1581
|
|
|
1582 if (! cut_buffers_initialized)
|
|
|
1583 initialize_cut_buffers (display, window);
|
|
|
1584
|
|
|
1585 /* We use the STRING encoding (Latin-1 only) if we can, else COMPOUND_TEXT.
|
|
|
1586 We cheat and use type = `STRING' even when using COMPOUND_TEXT.
|
|
|
1587 The ICCCM requires that this be so, and other clients assume it,
|
|
|
1588 as we do ourselves in initialize_cut_buffers. */
|
|
|
1589
|
|
|
1590 #ifdef MULE
|
|
|
1591 /* Optimize for the common ASCII case */
|
|
|
1592 for (ptr = data, end = ptr + bytes; ptr <= end; )
|
|
|
1593 {
|
|
|
1594 if (BYTE_ASCII_P (*ptr))
|
|
|
1595 {
|
|
|
1596 ptr++;
|
|
|
1597 continue;
|
|
|
1598 }
|
|
|
1599
|
|
|
1600 if ((*ptr) == LEADING_BYTE_LATIN_ISO8859_1 ||
|
|
|
1601 (*ptr) == LEADING_BYTE_CONTROL_1)
|
|
|
1602 {
|
|
|
1603 chartypes = LATIN_1;
|
|
|
1604 ptr += 2;
|
|
|
1605 continue;
|
|
|
1606 }
|
|
|
1607
|
|
|
1608 chartypes = WORLD;
|
|
|
1609 break;
|
|
|
1610 }
|
|
|
1611
|
|
|
1612 if (chartypes == LATIN_1)
|
|
|
1613 TO_EXTERNAL_FORMAT (LISP_STRING, string,
|
|
|
1614 ALLOCA, (data, bytes),
|
|
|
1615 Qbinary);
|
|
|
1616 else if (chartypes == WORLD)
|
|
|
1617 TO_EXTERNAL_FORMAT (LISP_STRING, string,
|
|
|
1618 ALLOCA, (data, bytes),
|
|
|
1619 Qctext);
|
|
|
1620 #endif /* MULE */
|
|
|
1621
|
|
|
1622 bytes_remaining = bytes;
|
|
|
1623
|
|
|
1624 while (bytes_remaining)
|
|
|
1625 {
|
|
|
1626 int chunk = bytes_remaining < max_bytes ? bytes_remaining : max_bytes;
|
|
|
1627 XChangeProperty (display, window, cut_buffer_atom, XA_STRING, 8,
|
|
|
1628 (bytes_remaining == bytes
|
|
|
1629 ? PropModeReplace : PropModeAppend),
|
|
|
1630 data, chunk);
|
|
|
1631 data += chunk;
|
|
|
1632 bytes_remaining -= chunk;
|
|
|
1633 }
|
|
|
1634 return string;
|
|
|
1635 }
|
|
|
1636
|
|
|
1637
|
|
|
1638 DEFUN ("x-rotate-cutbuffers-internal", Fx_rotate_cutbuffers_internal, 1, 1, 0, /*
|
|
|
1639 Rotate the values of the cutbuffers by the given number of steps;
|
|
|
1640 positive means move values forward, negative means backward.
|
|
|
1641 */
|
|
|
1642 (n))
|
|
|
1643 {
|
|
|
1644 struct device *d = decode_x_device (Qnil);
|
|
|
1645 Display *display = DEVICE_X_DISPLAY (d);
|
|
|
1646 Window window = RootWindow (display, 0); /* Cutbuffers are on frame 0 */
|
|
|
1647 Atom props [8];
|
|
|
1648
|
|
|
1649 CHECK_INT (n);
|
|
|
1650 if (XINT (n) == 0)
|
|
|
1651 return n;
|
|
|
1652 if (! cut_buffers_initialized)
|
|
|
1653 initialize_cut_buffers (display, window);
|
|
|
1654 props[0] = XA_CUT_BUFFER0;
|
|
|
1655 props[1] = XA_CUT_BUFFER1;
|
|
|
1656 props[2] = XA_CUT_BUFFER2;
|
|
|
1657 props[3] = XA_CUT_BUFFER3;
|
|
|
1658 props[4] = XA_CUT_BUFFER4;
|
|
|
1659 props[5] = XA_CUT_BUFFER5;
|
|
|
1660 props[6] = XA_CUT_BUFFER6;
|
|
|
1661 props[7] = XA_CUT_BUFFER7;
|
|
|
1662 XRotateWindowProperties (display, window, props, 8, XINT (n));
|
|
|
1663 return n;
|
|
|
1664 }
|
|
|
1665
|
|
|
1666 #endif /* CUT_BUFFER_SUPPORT */
|
|
|
1667
|
|
|
1668
|
|
|
1669
|
|
|
1670 /************************************************************************/
|
|
|
1671 /* initialization */
|
|
|
1672 /************************************************************************/
|
|
|
1673
|
|
|
1674 void
|
|
|
1675 syms_of_select_x (void)
|
|
|
1676 {
|
|
|
1677
|
|
|
1678 #ifdef CUT_BUFFER_SUPPORT
|
|
|
1679 DEFSUBR (Fx_get_cutbuffer_internal);
|
|
|
1680 DEFSUBR (Fx_store_cutbuffer_internal);
|
|
|
1681 DEFSUBR (Fx_rotate_cutbuffers_internal);
|
|
|
1682 #endif /* CUT_BUFFER_SUPPORT */
|
|
|
1683
|
|
|
1684 /* Unfortunately, timeout handlers must be lisp functions. */
|
|
|
1685 defsymbol (&Qx_selection_reply_timeout_internal,
|
|
|
1686 "x-selection-reply-timeout-internal");
|
|
|
1687 DEFSUBR (Fx_selection_reply_timeout_internal);
|
|
|
1688
|
|
|
1689 #ifdef CUT_BUFFER_SUPPORT
|
|
|
1690 defsymbol (&QCUT_BUFFER0, "CUT_BUFFER0");
|
|
|
1691 defsymbol (&QCUT_BUFFER1, "CUT_BUFFER1");
|
|
|
1692 defsymbol (&QCUT_BUFFER2, "CUT_BUFFER2");
|
|
|
1693 defsymbol (&QCUT_BUFFER3, "CUT_BUFFER3");
|
|
|
1694 defsymbol (&QCUT_BUFFER4, "CUT_BUFFER4");
|
|
|
1695 defsymbol (&QCUT_BUFFER5, "CUT_BUFFER5");
|
|
|
1696 defsymbol (&QCUT_BUFFER6, "CUT_BUFFER6");
|
|
|
1697 defsymbol (&QCUT_BUFFER7, "CUT_BUFFER7");
|
|
|
1698 #endif /* CUT_BUFFER_SUPPORT */
|
|
|
1699 }
|
|
|
1700
|
|
|
1701 void
|
|
|
1702 console_type_create_select_x (void)
|
|
|
1703 {
|
|
|
1704 CONSOLE_HAS_METHOD (x, own_selection);
|
|
|
1705 CONSOLE_HAS_METHOD (x, disown_selection);
|
|
|
1706 CONSOLE_HAS_METHOD (x, get_foreign_selection);
|
|
|
1707 CONSOLE_HAS_METHOD (x, selection_exists_p);
|
|
|
1708 }
|
|
|
1709
|
|
|
1710 void
|
|
|
1711 reinit_vars_of_select_x (void)
|
|
|
1712 {
|
|
|
1713 reading_selection_reply = 0;
|
|
|
1714 reading_which_selection = 0;
|
|
|
1715 selection_reply_timed_out = 0;
|
|
|
1716 for_whom_the_bell_tolls = 0;
|
|
|
1717 prop_location_tick = 0;
|
|
|
1718 }
|
|
|
1719
|
|
|
1720 void
|
|
|
1721 vars_of_select_x (void)
|
|
|
1722 {
|
|
|
1723 reinit_vars_of_select_x ();
|
|
|
1724
|
|
|
1725 #ifdef CUT_BUFFER_SUPPORT
|
|
|
1726 cut_buffers_initialized = 0;
|
|
|
1727 Fprovide (intern ("cut-buffer"));
|
|
|
1728 #endif
|
|
|
1729
|
|
|
1730 DEFVAR_LISP ("x-sent-selection-hooks", &Vx_sent_selection_hooks /*
|
|
|
1731 A function or functions to be called after we have responded to some
|
|
|
1732 other client's request for the value of a selection that we own. The
|
|
|
1733 function(s) will be called with four arguments:
|
|
|
1734 - the name of the selection (typically PRIMARY, SECONDARY, or CLIPBOARD);
|
|
|
1735 - the name of the selection-type which we were requested to convert the
|
|
|
1736 selection into before sending (for example, STRING or LENGTH);
|
|
|
1737 - and whether we successfully transmitted the selection.
|
|
|
1738 We might have failed (and declined the request) for any number of reasons,
|
|
|
1739 including being asked for a selection that we no longer own, or being asked
|
|
|
1740 to convert into a type that we don't know about or that is inappropriate.
|
|
|
1741 This hook doesn't let you change the behavior of emacs's selection replies,
|
|
|
1742 it merely informs you that they have happened.
|
|
|
1743 */ );
|
|
|
1744 Vx_sent_selection_hooks = Qunbound;
|
|
|
1745
|
|
|
1746 DEFVAR_INT ("x-selection-timeout", &x_selection_timeout /*
|
|
|
1747 If the selection owner doesn't reply in this many seconds, we give up.
|
|
|
1748 A value of 0 means wait as long as necessary. This is initialized from the
|
|
|
1749 \"*selectionTimeout\" resource (which is expressed in milliseconds).
|
|
|
1750 */ );
|
|
|
1751 x_selection_timeout = 0;
|
|
|
1752 }
|
|
|
1753
|
|
|
1754 void
|
|
|
1755 Xatoms_of_select_x (struct device *d)
|
|
|
1756 {
|
|
|
1757 Display *D = DEVICE_X_DISPLAY (d);
|
|
|
1758
|
|
|
1759 /* Non-predefined atoms that we might end up using a lot */
|
|
|
1760 DEVICE_XATOM_CLIPBOARD (d) = XInternAtom (D, "CLIPBOARD", False);
|
|
|
1761 DEVICE_XATOM_TIMESTAMP (d) = XInternAtom (D, "TIMESTAMP", False);
|
|
|
1762 DEVICE_XATOM_TEXT (d) = XInternAtom (D, "TEXT", False);
|
|
|
1763 DEVICE_XATOM_DELETE (d) = XInternAtom (D, "DELETE", False);
|
|
|
1764 DEVICE_XATOM_MULTIPLE (d) = XInternAtom (D, "MULTIPLE", False);
|
|
|
1765 DEVICE_XATOM_INCR (d) = XInternAtom (D, "INCR", False);
|
|
|
1766 DEVICE_XATOM_TARGETS (d) = XInternAtom (D, "TARGETS", False);
|
|
|
1767 DEVICE_XATOM_NULL (d) = XInternAtom (D, "NULL", False);
|
|
|
1768 DEVICE_XATOM_ATOM_PAIR (d) = XInternAtom (D, "ATOM_PAIR", False);
|
|
|
1769 DEVICE_XATOM_COMPOUND_TEXT (d) = XInternAtom (D, "COMPOUND_TEXT", False);
|
|
|
1770 DEVICE_XATOM_EMACS_TMP (d) = XInternAtom (D, "_EMACS_TMP_", False);
|
|
|
1771 }
|
