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0
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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
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272
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36 int lisp_to_time (Lisp_Object, time_t *);
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37 Lisp_Object time_to_lisp (time_t);
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38
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0
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39 #ifdef LWLIB_USES_MOTIF
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40 # define MOTIF_CLIPBOARDS
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41 #endif
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42
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43 #ifdef MOTIF_CLIPBOARDS
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44 # include <Xm/CutPaste.h>
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45 static void hack_motif_clipboard_selection (Atom selection_atom,
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46 Lisp_Object selection_value,
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47 Time thyme, Display *display,
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48 Window selecting_window,
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49 Bool owned_p);
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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 Lisp_Object QPRIMARY, QSECONDARY, QSTRING, QINTEGER, QCLIPBOARD, QTIMESTAMP,
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55 QTEXT, QDELETE, QMULTIPLE, QINCR, QEMACS_TMP, QTARGETS, QATOM, QNULL,
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56 QATOM_PAIR, QCOMPOUND_TEXT;
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57
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58 #ifdef CUT_BUFFER_SUPPORT
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59 Lisp_Object QCUT_BUFFER0, QCUT_BUFFER1, QCUT_BUFFER2, QCUT_BUFFER3,
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60 QCUT_BUFFER4, QCUT_BUFFER5, QCUT_BUFFER6, QCUT_BUFFER7;
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61 #endif
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62
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63 Lisp_Object Vx_lost_selection_hooks;
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64 Lisp_Object Vx_sent_selection_hooks;
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65
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66 /* If this is a smaller number than the max-request-size of the display,
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67 emacs will use INCR selection transfer when the selection is larger
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68 than this. The max-request-size is usually around 64k, so if you want
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173
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69 emacs to use incremental selection transfers when the selection is
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70 smaller than that, set this. I added this mostly for debugging the
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71 incremental transfer stuff, but it might improve server performance.
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72 */
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73 #define MAX_SELECTION_QUANTUM 0xFFFFFF
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74
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75 #define SELECTION_QUANTUM(dpy) ((XMaxRequestSize (dpy) << 2) - 100)
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76
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77 /* This is an association list whose elements are of the form
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78 ( selection-name selection-value selection-timestamp )
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79 selection-name is a lisp symbol, whose name is the name of an X Atom.
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80 selection-value is the value that emacs owns for that selection.
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81 It may be any kind of Lisp object.
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82 selection-timestamp is the time at which emacs began owning this selection,
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83 as a cons of two 16-bit numbers (making a 32 bit time).
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84 If there is an entry in this alist, then it can be assumed that emacs owns
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85 that selection.
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86 The only (eq) parts of this list that are visible from elisp are the
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87 selection-values.
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88 */
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89 Lisp_Object Vselection_alist;
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90
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91 /* This is an alist whose CARs are selection-types (whose names are the same
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92 as the names of X Atoms) and whose CDRs are the names of Lisp functions to
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173
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93 call to convert the given Emacs selection value to a string representing
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94 the given selection type. This is for elisp-level extension of the emacs
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95 selection handling.
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96 */
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97 Lisp_Object Vselection_converter_alist;
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98
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173
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99 /* "Selection owner couldn't convert selection" */
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100 Lisp_Object Qselection_conversion_error;
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101
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0
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102 /* If the selection owner takes too long to reply to a selection request,
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103 we give up on it. This is in seconds (0 = no timeout).
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104 */
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105 int x_selection_timeout;
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106
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107
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108 /* Utility functions */
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109
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110 static void lisp_data_to_selection_data (struct device *,
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111 Lisp_Object obj,
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112 unsigned char **data_ret,
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113 Atom *type_ret,
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114 unsigned int *size_ret,
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115 int *format_ret);
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116 static Lisp_Object selection_data_to_lisp_data (struct device *,
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117 unsigned char *data,
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272
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118 size_t size,
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119 Atom type,
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120 int format);
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121 static Lisp_Object x_get_window_property_as_lisp_data (Display *,
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122 Window,
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123 Atom property,
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124 Lisp_Object target_type,
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125 Atom selection_atom);
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126
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127 static int expect_property_change (Display *, Window, Atom prop, int state);
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128 static void wait_for_property_change (long);
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129 static void unexpect_property_change (int);
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130 static int waiting_for_other_props_on_window (Display *, Window);
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131
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173
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132 /* This converts a Lisp symbol to a server Atom, avoiding a server
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133 roundtrip whenever possible.
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134 */
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272
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135 static Atom
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136 symbol_to_x_atom (struct device *d, Lisp_Object sym, int only_if_exists)
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137 {
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138 Display *display = DEVICE_X_DISPLAY (d);
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173
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139
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272
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140 if (NILP (sym)) return XA_PRIMARY;
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141 if (EQ (sym, Qt)) return XA_SECONDARY;
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142 if (EQ (sym, QPRIMARY)) return XA_PRIMARY;
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143 if (EQ (sym, QSECONDARY)) return XA_SECONDARY;
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144 if (EQ (sym, QSTRING)) return XA_STRING;
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145 if (EQ (sym, QINTEGER)) return XA_INTEGER;
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146 if (EQ (sym, QATOM)) return XA_ATOM;
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147 if (EQ (sym, QCLIPBOARD)) return DEVICE_XATOM_CLIPBOARD (d);
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148 if (EQ (sym, QTIMESTAMP)) return DEVICE_XATOM_TIMESTAMP (d);
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149 if (EQ (sym, QTEXT)) return DEVICE_XATOM_TEXT (d);
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150 if (EQ (sym, QDELETE)) return DEVICE_XATOM_DELETE (d);
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151 if (EQ (sym, QMULTIPLE)) return DEVICE_XATOM_MULTIPLE (d);
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152 if (EQ (sym, QINCR)) return DEVICE_XATOM_INCR (d);
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153 if (EQ (sym, QEMACS_TMP)) return DEVICE_XATOM_EMACS_TMP (d);
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154 if (EQ (sym, QTARGETS)) return DEVICE_XATOM_TARGETS (d);
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155 if (EQ (sym, QNULL)) return DEVICE_XATOM_NULL (d);
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156 if (EQ (sym, QATOM_PAIR)) return DEVICE_XATOM_ATOM_PAIR (d);
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0
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157 if (EQ (sym, QCOMPOUND_TEXT)) return DEVICE_XATOM_COMPOUND_TEXT (d);
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158
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159 #ifdef CUT_BUFFER_SUPPORT
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272
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160 if (EQ (sym, QCUT_BUFFER0)) return XA_CUT_BUFFER0;
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161 if (EQ (sym, QCUT_BUFFER1)) return XA_CUT_BUFFER1;
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162 if (EQ (sym, QCUT_BUFFER2)) return XA_CUT_BUFFER2;
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163 if (EQ (sym, QCUT_BUFFER3)) return XA_CUT_BUFFER3;
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164 if (EQ (sym, QCUT_BUFFER4)) return XA_CUT_BUFFER4;
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165 if (EQ (sym, QCUT_BUFFER5)) return XA_CUT_BUFFER5;
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166 if (EQ (sym, QCUT_BUFFER6)) return XA_CUT_BUFFER6;
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167 if (EQ (sym, QCUT_BUFFER7)) return XA_CUT_BUFFER7;
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173
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168 #endif /* CUT_BUFFER_SUPPORT */
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169
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0
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170 {
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171 CONST char *nameext;
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272
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172 GET_C_STRING_CTEXT_DATA_ALLOCA (Fsymbol_name (sym), nameext);
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173
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173 return XInternAtom (display, nameext, only_if_exists ? True : False);
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174 }
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175 }
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176
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177
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178 /* This converts a server Atom to a Lisp symbol, avoiding server roundtrips
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179 and calls to intern whenever possible.
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180 */
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272
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181 static Lisp_Object
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182 x_atom_to_symbol (struct device *d, Atom atom)
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183 {
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184 Display *display = DEVICE_X_DISPLAY (d);
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185
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186 if (! atom) return Qnil;
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272
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187 if (atom == XA_PRIMARY) return QPRIMARY;
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188 if (atom == XA_SECONDARY) return QSECONDARY;
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189 if (atom == XA_STRING) return QSTRING;
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190 if (atom == XA_INTEGER) return QINTEGER;
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191 if (atom == XA_ATOM) return QATOM;
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192 if (atom == DEVICE_XATOM_CLIPBOARD (d)) return QCLIPBOARD;
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193 if (atom == DEVICE_XATOM_TIMESTAMP (d)) return QTIMESTAMP;
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173
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194 if (atom == DEVICE_XATOM_TEXT (d)) return QTEXT;
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195 if (atom == DEVICE_XATOM_DELETE (d)) return QDELETE;
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196 if (atom == DEVICE_XATOM_MULTIPLE (d)) return QMULTIPLE;
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197 if (atom == DEVICE_XATOM_INCR (d)) return QINCR;
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198 if (atom == DEVICE_XATOM_EMACS_TMP (d)) return QEMACS_TMP;
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173
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199 if (atom == DEVICE_XATOM_TARGETS (d)) return QTARGETS;
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200 if (atom == DEVICE_XATOM_NULL (d)) return QNULL;
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201 if (atom == DEVICE_XATOM_ATOM_PAIR (d)) return QATOM_PAIR;
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202 if (atom == DEVICE_XATOM_COMPOUND_TEXT (d)) return QCOMPOUND_TEXT;
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203
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204 #ifdef CUT_BUFFER_SUPPORT
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272
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205 if (atom == XA_CUT_BUFFER0) return QCUT_BUFFER0;
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206 if (atom == XA_CUT_BUFFER1) return QCUT_BUFFER1;
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207 if (atom == XA_CUT_BUFFER2) return QCUT_BUFFER2;
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208 if (atom == XA_CUT_BUFFER3) return QCUT_BUFFER3;
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209 if (atom == XA_CUT_BUFFER4) return QCUT_BUFFER4;
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210 if (atom == XA_CUT_BUFFER5) return QCUT_BUFFER5;
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211 if (atom == XA_CUT_BUFFER6) return QCUT_BUFFER6;
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212 if (atom == XA_CUT_BUFFER7) return QCUT_BUFFER7;
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213 #endif
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214
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215 {
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177
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216 Lisp_Object newsym;
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272
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217 CONST Bufbyte *intstr;
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173
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218 char *str = XGetAtomName (display, atom);
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219
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220 if (! str) return Qnil;
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221
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222 GET_C_CHARPTR_INT_CTEXT_DATA_ALLOCA (str, intstr);
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272
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223 newsym = intern ((char *) intstr);
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224 XFree (str);
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177
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225 return newsym;
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226 }
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227 }
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228
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229
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230 /* Do protocol to assert ourself as a selection owner.
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173
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231 Update the Vselection_alist so that we can reply to later requests for
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232 our selection.
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233 */
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234 static void
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235 x_own_selection (Lisp_Object selection_name, Lisp_Object selection_value)
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236 {
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237 struct device *d = decode_x_device (Qnil);
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238 Display *display = DEVICE_X_DISPLAY (d);
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239 struct frame *sel_frame = selected_frame ();
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240 Window selecting_window = XtWindow (FRAME_X_TEXT_WIDGET (sel_frame));
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173
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241 /* Use the time of the last-read mouse or keyboard event.
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242 For selection purposes, we use this as a sleazy way of knowing what the
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243 current time is in server-time. This assumes that the most recently read
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244 mouse or keyboard event has something to do with the assertion of the
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245 selection, which is probably true.
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246 */
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247 Time thyme = DEVICE_X_MOUSE_TIMESTAMP (d);
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248 Atom selection_atom;
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249
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250 CHECK_SYMBOL (selection_name);
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251 selection_atom = symbol_to_x_atom (d, selection_name, 0);
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252
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253 XSetSelectionOwner (display, selection_atom, selecting_window, thyme);
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254
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255 /* Now update the local cache */
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256 {
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257 /* We do NOT use time_to_lisp() here any more, like we used to.
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258 That assumed equivalence of time_t and Time, which is not
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259 necessarily the case (e.g. under OSF on the Alphas, where
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260 Time is a 64-bit quantity and time_t is a 32-bit quantity).
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261
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262 Opaque pointers are the clean way to go here.
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263 */
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264 Lisp_Object selection_time = make_opaque (sizeof (thyme), (void *) &thyme);
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272
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265 Lisp_Object selection_data = list3 (selection_name,
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266 selection_value,
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267 selection_time);
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0
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268 Lisp_Object prev_value = assq_no_quit (selection_name, Vselection_alist);
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269 Vselection_alist = Fcons (selection_data, Vselection_alist);
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270
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271 /* If we already owned the selection, remove the old selection data.
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272 Perhaps we should destructively modify it instead.
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273 Don't use Fdelq() as that may QUIT;.
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274 */
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275 if (!NILP (prev_value))
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276 {
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277 Lisp_Object rest; /* we know it's not the CAR, so it's easy. */
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278 for (rest = Vselection_alist; !NILP (rest); rest = Fcdr (rest))
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279 if (EQ (prev_value, Fcar (XCDR (rest))))
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280 {
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281 XCDR (rest) = Fcdr (XCDR (rest));
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282 break;
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283 }
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284 }
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285 #ifdef MOTIF_CLIPBOARDS
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286 hack_motif_clipboard_selection (selection_atom, selection_value,
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287 thyme, display, selecting_window,
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288 !NILP (prev_value));
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289 #endif
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290 }
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291 }
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292
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293
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294 #ifdef MOTIF_CLIPBOARDS /* Bend over baby. Take it and like it. */
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295
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296 # ifdef MOTIF_INCREMENTAL_CLIPBOARDS_WORK
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297 static void motif_clipboard_cb ();
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298 # endif
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299
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300 static void
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301 hack_motif_clipboard_selection (Atom selection_atom,
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302 Lisp_Object selection_value,
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303 Time thyme,
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304 Display *display,
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305 Window selecting_window,
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306 Bool owned_p)
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307 {
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308 struct device *d = get_device_from_display (display);
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309 /* Those Motif wankers can't be bothered to follow the ICCCM, and do
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310 their own non-Xlib non-Xt clipboard processing. So we have to do
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311 this so that linked-in Motif widgets don't get themselves wedged.
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312 */
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313 if (selection_atom == DEVICE_XATOM_CLIPBOARD (d)
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314 && STRINGP (selection_value)
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315
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316 /* If we already own the clipboard, don't own it again in the Motif
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317 way. This might lose in some subtle way, since the timestamp won't
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318 be current, but owning the selection on the Motif way does a
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319 SHITLOAD of X protocol, and it makes killing text be incredibly
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320 slow when using an X terminal. ARRRRGGGHHH!!!!
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321 */
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322 /* No, this is no good, because then Motif text fields don't bother
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323 to look up the new value, and you can't Copy from a buffer, Paste
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324 into a text field, then Copy something else from the buffer and
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2
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325 paste it into the text field -- it pastes the first thing again. */
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0
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326 /* && !owned_p */
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327 )
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328 {
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329 #ifdef MOTIF_INCREMENTAL_CLIPBOARDS_WORK
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330 Widget widget = FRAME_X_TEXT_WIDGET (selected_frame());
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331 #endif
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332 long itemid;
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333 #if XmVersion >= 1002
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334 long dataid;
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335 #else
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336 int dataid; /* 1.2 wants long, but 1.1.5 wants int... */
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337 #endif
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338 XmString fmh;
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169
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339 String encoding = "STRING";
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272
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340 CONST Extbyte *data = XSTRING_DATA (selection_value);
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16
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341 Extcount bytes = XSTRING_LENGTH (selection_value);
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342
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70
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343 #ifdef MULE
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344 {
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345 enum { ASCII, LATIN_1, WORLD } chartypes = ASCII;
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346 CONST Bufbyte *ptr = data, *end = ptr + bytes;
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347 /* Optimize for the common ASCII case */
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348 while (ptr <= end)
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349 {
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350 if (BYTE_ASCII_P (*ptr))
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351 {
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352 ptr++;
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353 continue;
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354 }
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355
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74
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356 if ((*ptr) == LEADING_BYTE_LATIN_ISO8859_1 ||
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70
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357 (*ptr) == LEADING_BYTE_CONTROL_1)
|
|
|
358 {
|
|
|
359 chartypes = LATIN_1;
|
|
|
360 ptr += 2;
|
|
|
361 continue;
|
|
|
362 }
|
|
173
|
363
|
|
70
|
364 chartypes = WORLD;
|
|
|
365 break;
|
|
|
366 }
|
|
|
367
|
|
169
|
368 if (chartypes == LATIN_1)
|
|
|
369 GET_STRING_BINARY_DATA_ALLOCA (selection_value, data, bytes);
|
|
|
370 else if (chartypes == WORLD)
|
|
70
|
371 {
|
|
|
372 GET_STRING_CTEXT_DATA_ALLOCA (selection_value, data, bytes);
|
|
169
|
373 encoding = "COMPOUND_TEXT";
|
|
70
|
374 }
|
|
|
375 }
|
|
|
376 #endif /* MULE */
|
|
16
|
377
|
|
169
|
378 fmh = XmStringCreateLtoR ("Clipboard", XmSTRING_DEFAULT_CHARSET);
|
|
0
|
379 while (ClipboardSuccess !=
|
|
|
380 XmClipboardStartCopy (display, selecting_window, fmh, thyme,
|
|
|
381 #ifdef MOTIF_INCREMENTAL_CLIPBOARDS_WORK
|
|
|
382 widget, motif_clipboard_cb,
|
|
|
383 #else
|
|
|
384 0, NULL,
|
|
|
385 #endif
|
|
|
386 &itemid))
|
|
|
387 ;
|
|
|
388 XmStringFree (fmh);
|
|
|
389 while (ClipboardSuccess !=
|
|
16
|
390 XmClipboardCopy (display, selecting_window, itemid, encoding,
|
|
0
|
391 #ifdef MOTIF_INCREMENTAL_CLIPBOARDS_WORK
|
|
16
|
392 /* O'Reilly examples say size can be 0,
|
|
0
|
393 but this clearly is not the case. */
|
|
16
|
394 0, bytes, (int) selecting_window, /* private id */
|
|
0
|
395 #else /* !MOTIF_INCREMENTAL_CLIPBOARDS_WORK */
|
|
16
|
396 (XtPointer) data, bytes, 0,
|
|
0
|
397 #endif /* !MOTIF_INCREMENTAL_CLIPBOARDS_WORK */
|
|
|
398 &dataid))
|
|
|
399 ;
|
|
|
400 while (ClipboardSuccess !=
|
|
|
401 XmClipboardEndCopy (display, selecting_window, itemid))
|
|
|
402 ;
|
|
|
403 }
|
|
|
404 }
|
|
|
405
|
|
|
406 # ifdef MOTIF_INCREMENTAL_CLIPBOARDS_WORK
|
|
|
407 /* I tried to treat the clipboard like a real selection, and not send
|
|
|
408 the data until it was requested, but it looks like that just doesn't
|
|
|
409 work at all unless the selection owner and requestor are in different
|
|
|
410 processes. From reading the Motif source, it looks like they never
|
|
|
411 even considered having two widgets in the same application transfer
|
|
|
412 data between each other using "by-name" clipboard values. What a
|
|
|
413 bunch of fuckups.
|
|
|
414 */
|
|
|
415 static void
|
|
|
416 motif_clipboard_cb (Widget widget, int *data_id, int *private_id, int *reason)
|
|
|
417 {
|
|
|
418 switch (*reason)
|
|
|
419 {
|
|
|
420 case XmCR_CLIPBOARD_DATA_REQUEST:
|
|
|
421 {
|
|
|
422 Display *dpy = XtDisplay (widget);
|
|
|
423 Window window = (Window) *private_id;
|
|
|
424 Lisp_Object selection = assq_no_quit (QCLIPBOARD, Vselection_alist);
|
|
|
425 if (NILP (selection)) abort ();
|
|
|
426 selection = XCDR (selection);
|
|
|
427 if (!STRINGP (selection)) abort ();
|
|
|
428 XmClipboardCopyByName (dpy, window, *data_id,
|
|
16
|
429 (char *) XSTRING_DATA (selection),
|
|
|
430 XSTRING_LENGTH (selection) + 1,
|
|
0
|
431 0);
|
|
|
432 }
|
|
|
433 break;
|
|
|
434 case XmCR_CLIPBOARD_DATA_DELETE:
|
|
|
435 default:
|
|
|
436 /* don't need to free anything */
|
|
|
437 break;
|
|
|
438 }
|
|
|
439 }
|
|
|
440 # endif /* MOTIF_INCREMENTAL_CLIPBOARDS_WORK */
|
|
|
441 #endif /* MOTIF_CLIPBOARDS */
|
|
|
442
|
|
|
443
|
|
|
444 /* Given a selection-name and desired type, this looks up our local copy of
|
|
|
445 the selection value and converts it to the type. It returns nil or a
|
|
|
446 string. This calls random elisp code, and may signal or gc.
|
|
|
447 */
|
|
|
448 static Lisp_Object
|
|
|
449 x_get_local_selection (Lisp_Object selection_symbol, Lisp_Object target_type)
|
|
|
450 {
|
|
|
451 /* This function can GC */
|
|
|
452 Lisp_Object local_value = assq_no_quit (selection_symbol, Vselection_alist);
|
|
|
453 Lisp_Object handler_fn, value, check;
|
|
|
454
|
|
|
455 if (NILP (local_value)) return Qnil;
|
|
|
456
|
|
|
457 /* TIMESTAMP and MULTIPLE are special cases 'cause that's easiest. */
|
|
|
458 if (EQ (target_type, QTIMESTAMP))
|
|
|
459 {
|
|
|
460 handler_fn = Qnil;
|
|
|
461 value = XCAR (XCDR (XCDR (local_value)));
|
|
|
462 }
|
|
|
463
|
|
|
464 #if 0 /* #### MULTIPLE doesn't work yet */
|
|
|
465 else if (CONSP (target_type) &&
|
|
|
466 XCAR (target_type) == QMULTIPLE)
|
|
|
467 {
|
|
|
468 Lisp_Object pairs = XCDR (target_type);
|
|
173
|
469 int len = XVECTOR_LENGTH (pairs);
|
|
0
|
470 int i;
|
|
|
471 /* If the target is MULTIPLE, then target_type looks like
|
|
|
472 (MULTIPLE . [[SELECTION1 TARGET1] [SELECTION2 TARGET2] ... ])
|
|
|
473 We modify the second element of each pair in the vector and
|
|
|
474 return it as [[SELECTION1 <value1>] [SELECTION2 <value2>] ... ]
|
|
|
475 */
|
|
173
|
476 for (i = 0; i < len; i++)
|
|
0
|
477 {
|
|
173
|
478 Lisp_Object pair = XVECTOR_DATA (pairs) [i];
|
|
|
479 XVECTOR_DATA (pair) [1] =
|
|
|
480 x_get_local_selection (XVECTOR_DATA (pair) [0],
|
|
|
481 XVECTOR_DATA (pair) [1]);
|
|
0
|
482 }
|
|
|
483 return pairs;
|
|
|
484 }
|
|
|
485 #endif
|
|
|
486 else
|
|
|
487 {
|
|
|
488 CHECK_SYMBOL (target_type);
|
|
|
489 handler_fn = Fcdr (Fassq (target_type, Vselection_converter_alist));
|
|
|
490 if (NILP (handler_fn)) return Qnil;
|
|
|
491 value = call3 (handler_fn,
|
|
|
492 selection_symbol, target_type,
|
|
|
493 XCAR (XCDR (local_value)));
|
|
|
494 }
|
|
|
495
|
|
|
496 /* This lets the selection function to return (TYPE . VALUE). For example,
|
|
|
497 when the selected type is LINE_NUMBER, the returned type is SPAN, not
|
|
|
498 INTEGER.
|
|
|
499 */
|
|
|
500 check = value;
|
|
|
501 if (CONSP (value) && SYMBOLP (XCAR (value)))
|
|
|
502 check = XCDR (value);
|
|
173
|
503
|
|
0
|
504 /* Strings, vectors, and symbols are converted to selection data format in
|
|
|
505 the obvious way. Integers are converted to 16 bit quantities if they're
|
|
|
506 small enough, otherwise 32 bits are used.
|
|
|
507 */
|
|
|
508 if (STRINGP (check) ||
|
|
|
509 VECTORP (check) ||
|
|
|
510 SYMBOLP (check) ||
|
|
2
|
511 INTP (check) ||
|
|
|
512 CHARP (check) ||
|
|
0
|
513 NILP (value))
|
|
|
514 return value;
|
|
|
515
|
|
|
516 /* (N . M) or (N M) get turned into a 32 bit quantity. So if you want to
|
|
|
517 always return a small quantity as 32 bits, your converter routine needs
|
|
|
518 to return a cons.
|
|
|
519 */
|
|
|
520 else if (CONSP (check) &&
|
|
|
521 INTP (XCAR (check)) &&
|
|
|
522 (INTP (XCDR (check)) ||
|
|
|
523 (CONSP (XCDR (check)) &&
|
|
|
524 INTP (XCAR (XCDR (check))) &&
|
|
|
525 NILP (XCDR (XCDR (check))))))
|
|
|
526 return value;
|
|
173
|
527 /* Otherwise the lisp converter function returned something unrecognized.
|
|
0
|
528 */
|
|
|
529 else
|
|
|
530 signal_error (Qerror,
|
|
|
531 list3 (build_string
|
|
|
532 ("unrecognized selection-conversion type"),
|
|
|
533 handler_fn,
|
|
|
534 value));
|
|
|
535
|
|
|
536 return Qnil; /* suppress compiler warning */
|
|
|
537 }
|
|
|
538
|
|
|
539
|
|
|
540
|
|
|
541 /* Send a SelectionNotify event to the requestor with property=None, meaning
|
|
|
542 we were unable to do what they wanted.
|
|
|
543 */
|
|
|
544 static void
|
|
|
545 x_decline_selection_request (XSelectionRequestEvent *event)
|
|
|
546 {
|
|
|
547 XSelectionEvent reply;
|
|
173
|
548 reply.type = SelectionNotify;
|
|
|
549 reply.display = event->display;
|
|
0
|
550 reply.requestor = event->requestor;
|
|
|
551 reply.selection = event->selection;
|
|
173
|
552 reply.time = event->time;
|
|
|
553 reply.target = event->target;
|
|
|
554 reply.property = None;
|
|
0
|
555
|
|
173
|
556 XSendEvent (reply.display, reply.requestor, False, 0L, (XEvent *) &reply);
|
|
0
|
557 XFlush (reply.display);
|
|
|
558 }
|
|
|
559
|
|
|
560
|
|
|
561 /* Used as an unwind-protect clause so that, if a selection-converter signals
|
|
|
562 an error, we tell the requestor that we were unable to do what they wanted
|
|
|
563 before we throw to top-level or go into the debugger or whatever.
|
|
|
564 */
|
|
|
565 static Lisp_Object
|
|
|
566 x_selection_request_lisp_error (Lisp_Object closure)
|
|
|
567 {
|
|
|
568 XSelectionRequestEvent *event = (XSelectionRequestEvent *)
|
|
|
569 get_opaque_ptr (closure);
|
|
|
570
|
|
|
571 free_opaque_ptr (closure);
|
|
|
572 if (event->type == 0) /* we set this to mean "completed normally" */
|
|
|
573 return Qnil;
|
|
|
574 x_decline_selection_request (event);
|
|
|
575 return Qnil;
|
|
|
576 }
|
|
|
577
|
|
|
578
|
|
|
579 /* Convert our selection to the requested type, and put that data where the
|
|
|
580 requestor wants it. Then tell them whether we've succeeded.
|
|
|
581 */
|
|
|
582 static void
|
|
|
583 x_reply_selection_request (XSelectionRequestEvent *event, int format,
|
|
|
584 unsigned char *data, int size, Atom type)
|
|
|
585 {
|
|
|
586 /* This function can GC */
|
|
|
587 XSelectionEvent reply;
|
|
|
588 Display *display = event->display;
|
|
|
589 struct device *d = get_device_from_display (display);
|
|
|
590 Window window = event->requestor;
|
|
|
591 int bytes_remaining;
|
|
|
592 int format_bytes = format/8;
|
|
|
593 int max_bytes = SELECTION_QUANTUM (display);
|
|
|
594 if (max_bytes > MAX_SELECTION_QUANTUM) max_bytes = MAX_SELECTION_QUANTUM;
|
|
|
595
|
|
173
|
596 reply.type = SelectionNotify;
|
|
|
597 reply.display = display;
|
|
0
|
598 reply.requestor = window;
|
|
|
599 reply.selection = event->selection;
|
|
173
|
600 reply.time = event->time;
|
|
|
601 reply.target = event->target;
|
|
|
602 reply.property = (event->property == None ? event->target : event->property);
|
|
0
|
603
|
|
|
604 /* #### XChangeProperty can generate BadAlloc, and we must handle it! */
|
|
|
605
|
|
|
606 /* Store the data on the requested property.
|
|
|
607 If the selection is large, only store the first N bytes of it.
|
|
|
608 */
|
|
|
609 bytes_remaining = size * format_bytes;
|
|
|
610 if (bytes_remaining <= max_bytes)
|
|
|
611 {
|
|
|
612 /* Send all the data at once, with minimal handshaking. */
|
|
|
613 #if 0
|
|
|
614 stderr_out ("\nStoring all %d\n", bytes_remaining);
|
|
|
615 #endif
|
|
|
616 XChangeProperty (display, window, reply.property, type, format,
|
|
|
617 PropModeReplace, data, size);
|
|
|
618 /* At this point, the selection was successfully stored; ack it. */
|
|
173
|
619 XSendEvent (display, window, False, 0L, (XEvent *) &reply);
|
|
0
|
620 XFlush (display);
|
|
|
621 }
|
|
|
622 else
|
|
|
623 {
|
|
|
624 /* Send an INCR selection. */
|
|
|
625 int prop_id;
|
|
|
626
|
|
|
627 if (x_window_to_frame (d, window)) /* #### debug */
|
|
|
628 error ("attempt to transfer an INCR to ourself!");
|
|
|
629 #if 0
|
|
|
630 stderr_out ("\nINCR %d\n", bytes_remaining);
|
|
|
631 #endif
|
|
|
632 prop_id = expect_property_change (display, window, reply.property,
|
|
|
633 PropertyDelete);
|
|
|
634
|
|
|
635 XChangeProperty (display, window, reply.property, DEVICE_XATOM_INCR (d),
|
|
|
636 32, PropModeReplace, (unsigned char *)
|
|
|
637 &bytes_remaining, 1);
|
|
|
638 XSelectInput (display, window, PropertyChangeMask);
|
|
|
639 /* Tell 'em the INCR data is there... */
|
|
173
|
640 XSendEvent (display, window, False, 0L, (XEvent *) &reply);
|
|
0
|
641 XFlush (display);
|
|
|
642
|
|
|
643 /* First, wait for the requestor to ack by deleting the property.
|
|
|
644 This can run random lisp code (process handlers) or signal.
|
|
|
645 */
|
|
|
646 wait_for_property_change (prop_id);
|
|
|
647
|
|
|
648 while (bytes_remaining)
|
|
|
649 {
|
|
|
650 int i = ((bytes_remaining < max_bytes)
|
|
|
651 ? bytes_remaining
|
|
|
652 : max_bytes);
|
|
|
653 prop_id = expect_property_change (display, window, reply.property,
|
|
|
654 PropertyDelete);
|
|
|
655 #if 0
|
|
|
656 stderr_out (" INCR adding %d\n", i);
|
|
|
657 #endif
|
|
|
658 /* Append the next chunk of data to the property. */
|
|
|
659 XChangeProperty (display, window, reply.property, type, format,
|
|
|
660 PropModeAppend, data, i / format_bytes);
|
|
|
661 bytes_remaining -= i;
|
|
|
662 data += i;
|
|
|
663
|
|
|
664 /* Now wait for the requestor to ack this chunk by deleting the
|
|
|
665 property. This can run random lisp code or signal.
|
|
|
666 */
|
|
|
667 wait_for_property_change (prop_id);
|
|
|
668 }
|
|
|
669 /* Now write a zero-length chunk to the property to tell the requestor
|
|
|
670 that we're done. */
|
|
|
671 #if 0
|
|
|
672 stderr_out (" INCR done\n");
|
|
|
673 #endif
|
|
|
674 if (! waiting_for_other_props_on_window (display, window))
|
|
|
675 XSelectInput (display, window, 0L);
|
|
|
676
|
|
|
677 XChangeProperty (display, window, reply.property, type, format,
|
|
|
678 PropModeReplace, data, 0);
|
|
|
679 }
|
|
|
680 }
|
|
|
681
|
|
|
682
|
|
|
683
|
|
|
684 /* Called from the event-loop in response to a SelectionRequest event.
|
|
|
685 */
|
|
|
686 void
|
|
|
687 x_handle_selection_request (XSelectionRequestEvent *event)
|
|
|
688 {
|
|
|
689 /* This function can GC */
|
|
|
690 struct gcpro gcpro1, gcpro2, gcpro3;
|
|
|
691 XSelectionEvent reply;
|
|
|
692 Lisp_Object local_selection_data = Qnil;
|
|
|
693 Lisp_Object selection_symbol;
|
|
|
694 Lisp_Object target_symbol = Qnil;
|
|
|
695 Lisp_Object converted_selection = Qnil;
|
|
|
696 Time local_selection_time;
|
|
|
697 Lisp_Object successful_p = Qnil;
|
|
|
698 int count;
|
|
|
699 struct device *d = get_device_from_display (event->display);
|
|
|
700
|
|
|
701 GCPRO3 (local_selection_data, converted_selection, target_symbol);
|
|
|
702
|
|
173
|
703 reply.type = SelectionNotify; /* Construct the reply event */
|
|
|
704 reply.display = event->display;
|
|
0
|
705 reply.requestor = event->requestor;
|
|
|
706 reply.selection = event->selection;
|
|
173
|
707 reply.time = event->time;
|
|
|
708 reply.target = event->target;
|
|
|
709 reply.property = (event->property == None ? event->target : event->property);
|
|
0
|
710
|
|
|
711 selection_symbol = x_atom_to_symbol (d, event->selection);
|
|
|
712
|
|
|
713 local_selection_data = assq_no_quit (selection_symbol, Vselection_alist);
|
|
173
|
714
|
|
0
|
715 #if 0
|
|
|
716 # define CDR(x) (XCDR (x))
|
|
|
717 # define CAR(x) (XCAR (x))
|
|
|
718 /* This list isn't user-visible, so it can't "go bad." */
|
|
|
719 if (!CONSP (local_selection_data)) abort ();
|
|
|
720 if (!CONSP (CDR (local_selection_data))) abort ();
|
|
|
721 if (!CONSP (CDR (CDR (local_selection_data)))) abort ();
|
|
|
722 if (!NILP (CDR (CDR (CDR (local_selection_data))))) abort ();
|
|
|
723 if (!CONSP (CAR (CDR (CDR (local_selection_data))))) abort ();
|
|
|
724 if (!INTP (CAR (CAR (CDR (CDR (local_selection_data)))))) abort ();
|
|
|
725 if (!INTP (CDR (CAR (CDR (CDR (local_selection_data)))))) abort ();
|
|
|
726 # undef CAR
|
|
|
727 # undef CDR
|
|
|
728 #endif
|
|
|
729
|
|
|
730 if (NILP (local_selection_data))
|
|
|
731 {
|
|
|
732 /* Someone asked for the selection, but we don't have it any more.
|
|
|
733 */
|
|
|
734 x_decline_selection_request (event);
|
|
|
735 goto DONE_LABEL;
|
|
|
736 }
|
|
|
737
|
|
|
738 local_selection_time =
|
|
|
739 * (Time *) XOPAQUE_DATA (XCAR (XCDR (XCDR (local_selection_data))));
|
|
|
740
|
|
|
741 if (event->time != CurrentTime &&
|
|
|
742 local_selection_time > event->time)
|
|
|
743 {
|
|
|
744 /* Someone asked for the selection, and we have one, but not the one
|
|
|
745 they're looking for.
|
|
|
746 */
|
|
|
747 x_decline_selection_request (event);
|
|
|
748 goto DONE_LABEL;
|
|
|
749 }
|
|
|
750
|
|
|
751 count = specpdl_depth ();
|
|
|
752 record_unwind_protect (x_selection_request_lisp_error,
|
|
|
753 make_opaque_ptr (event));
|
|
|
754 target_symbol = x_atom_to_symbol (d, event->target);
|
|
|
755
|
|
|
756 #if 0 /* #### MULTIPLE doesn't work yet */
|
|
|
757 if (EQ (target_symbol, QMULTIPLE))
|
|
|
758 target_symbol = fetch_multiple_target (event);
|
|
|
759 #endif
|
|
173
|
760
|
|
0
|
761 /* Convert lisp objects back into binary data */
|
|
173
|
762
|
|
0
|
763 converted_selection =
|
|
|
764 x_get_local_selection (selection_symbol, target_symbol);
|
|
173
|
765
|
|
0
|
766 if (! NILP (converted_selection))
|
|
|
767 {
|
|
|
768 unsigned char *data;
|
|
|
769 unsigned int size;
|
|
|
770 int format;
|
|
|
771 Atom type;
|
|
|
772 lisp_data_to_selection_data (d, converted_selection,
|
|
|
773 &data, &type, &size, &format);
|
|
173
|
774
|
|
0
|
775 x_reply_selection_request (event, format, data, size, type);
|
|
|
776 successful_p = Qt;
|
|
|
777 /* Tell x_selection_request_lisp_error() it's cool. */
|
|
|
778 event->type = 0;
|
|
|
779 xfree (data);
|
|
|
780 }
|
|
|
781 unbind_to (count, Qnil);
|
|
|
782
|
|
|
783 DONE_LABEL:
|
|
|
784
|
|
|
785 UNGCPRO;
|
|
|
786
|
|
173
|
787 /* Let random lisp code notice that the selection has been asked for. */
|
|
0
|
788 {
|
|
|
789 Lisp_Object rest;
|
|
|
790 Lisp_Object val = Vx_sent_selection_hooks;
|
|
|
791 if (!UNBOUNDP (val) && !NILP (val))
|
|
|
792 {
|
|
|
793 if (CONSP (val) && !EQ (XCAR (val), Qlambda))
|
|
|
794 for (rest = val; !NILP (rest); rest = Fcdr (rest))
|
|
|
795 call3 (Fcar(rest), selection_symbol, target_symbol,
|
|
|
796 successful_p);
|
|
|
797 else
|
|
|
798 call3 (val, selection_symbol, target_symbol,
|
|
|
799 successful_p);
|
|
|
800 }
|
|
|
801 }
|
|
|
802 }
|
|
|
803
|
|
|
804
|
|
|
805 /* Called from the event-loop in response to a SelectionClear event.
|
|
|
806 */
|
|
|
807 void
|
|
|
808 x_handle_selection_clear (XSelectionClearEvent *event)
|
|
|
809 {
|
|
|
810 Display *display = event->display;
|
|
|
811 struct device *d = get_device_from_display (display);
|
|
|
812 Atom selection = event->selection;
|
|
|
813 Time changed_owner_time = event->time;
|
|
173
|
814
|
|
0
|
815 Lisp_Object selection_symbol, local_selection_data;
|
|
|
816 Time local_selection_time;
|
|
|
817
|
|
|
818 selection_symbol = x_atom_to_symbol (d, selection);
|
|
|
819
|
|
|
820 local_selection_data = assq_no_quit (selection_symbol, Vselection_alist);
|
|
|
821
|
|
|
822 /* Well, we already believe that we don't own it, so that's just fine. */
|
|
|
823 if (NILP (local_selection_data)) return;
|
|
|
824
|
|
|
825 local_selection_time =
|
|
|
826 * (Time *) XOPAQUE_DATA (XCAR (XCDR (XCDR (local_selection_data))));
|
|
|
827
|
|
|
828 /* This SelectionClear is for a selection that we no longer own, so we can
|
|
|
829 disregard it. (That is, we have reasserted the selection since this
|
|
|
830 request was generated.)
|
|
|
831 */
|
|
|
832 if (changed_owner_time != CurrentTime &&
|
|
|
833 local_selection_time > changed_owner_time)
|
|
|
834 return;
|
|
|
835
|
|
|
836 /* Otherwise, we're really honest and truly being told to drop it.
|
|
|
837 Don't use Fdelq() as that may QUIT;.
|
|
|
838 */
|
|
|
839 if (EQ (local_selection_data, Fcar (Vselection_alist)))
|
|
|
840 Vselection_alist = Fcdr (Vselection_alist);
|
|
|
841 else
|
|
|
842 {
|
|
|
843 Lisp_Object rest;
|
|
|
844 for (rest = Vselection_alist; !NILP (rest); rest = Fcdr (rest))
|
|
|
845 if (EQ (local_selection_data, Fcar (XCDR (rest))))
|
|
|
846 {
|
|
|
847 XCDR (rest) = Fcdr (XCDR (rest));
|
|
|
848 break;
|
|
|
849 }
|
|
|
850 }
|
|
|
851
|
|
|
852 /* Let random lisp code notice that the selection has been stolen.
|
|
|
853 */
|
|
|
854 {
|
|
|
855 Lisp_Object rest;
|
|
|
856 Lisp_Object val = Vx_lost_selection_hooks;
|
|
|
857 if (!UNBOUNDP (val) && !NILP (val))
|
|
|
858 {
|
|
|
859 if (CONSP (val) && !EQ (XCAR (val), Qlambda))
|
|
|
860 for (rest = val; !NILP (rest); rest = Fcdr (rest))
|
|
|
861 call1 (Fcar (rest), selection_symbol);
|
|
|
862 else
|
|
|
863 call1 (val, selection_symbol);
|
|
|
864 }
|
|
|
865 }
|
|
|
866 }
|
|
|
867
|
|
|
868
|
|
|
869 /* This stuff is so that INCR selections are reentrant (that is, so we can
|
|
|
870 be servicing multiple INCR selection requests simultaneously). I haven't
|
|
|
871 actually tested that yet.
|
|
|
872 */
|
|
|
873
|
|
|
874 static int prop_location_tick;
|
|
|
875
|
|
|
876 static struct prop_location {
|
|
|
877 int tick;
|
|
|
878 Display *display;
|
|
|
879 Window window;
|
|
|
880 Atom property;
|
|
|
881 int desired_state;
|
|
|
882 struct prop_location *next;
|
|
|
883 } *for_whom_the_bell_tolls;
|
|
|
884
|
|
|
885
|
|
|
886 static int
|
|
|
887 property_deleted_p (void *tick)
|
|
|
888 {
|
|
|
889 struct prop_location *rest = for_whom_the_bell_tolls;
|
|
|
890 while (rest)
|
|
|
891 if (rest->tick == (long) tick)
|
|
|
892 return 0;
|
|
|
893 else
|
|
|
894 rest = rest->next;
|
|
|
895 return 1;
|
|
|
896 }
|
|
|
897
|
|
|
898 static int
|
|
|
899 waiting_for_other_props_on_window (Display *display, Window window)
|
|
|
900 {
|
|
|
901 struct prop_location *rest = for_whom_the_bell_tolls;
|
|
|
902 while (rest)
|
|
|
903 if (rest->display == display && rest->window == window)
|
|
|
904 return 1;
|
|
|
905 else
|
|
|
906 rest = rest->next;
|
|
|
907 return 0;
|
|
|
908 }
|
|
|
909
|
|
|
910
|
|
|
911 static int
|
|
|
912 expect_property_change (Display *display, Window window,
|
|
|
913 Atom property, int state)
|
|
|
914 {
|
|
185
|
915 struct prop_location *pl = xnew (struct prop_location);
|
|
0
|
916 pl->tick = ++prop_location_tick;
|
|
|
917 pl->display = display;
|
|
|
918 pl->window = window;
|
|
|
919 pl->property = property;
|
|
|
920 pl->desired_state = state;
|
|
|
921 pl->next = for_whom_the_bell_tolls;
|
|
|
922 for_whom_the_bell_tolls = pl;
|
|
|
923 return pl->tick;
|
|
|
924 }
|
|
|
925
|
|
|
926 static void
|
|
|
927 unexpect_property_change (int tick)
|
|
|
928 {
|
|
|
929 struct prop_location *prev = 0, *rest = for_whom_the_bell_tolls;
|
|
|
930 while (rest)
|
|
|
931 {
|
|
|
932 if (rest->tick == tick)
|
|
|
933 {
|
|
|
934 if (prev)
|
|
|
935 prev->next = rest->next;
|
|
|
936 else
|
|
|
937 for_whom_the_bell_tolls = rest->next;
|
|
|
938 xfree (rest);
|
|
|
939 return;
|
|
|
940 }
|
|
|
941 prev = rest;
|
|
|
942 rest = rest->next;
|
|
|
943 }
|
|
|
944 }
|
|
|
945
|
|
|
946 static void
|
|
|
947 wait_for_property_change (long tick)
|
|
|
948 {
|
|
|
949 /* This function can GC */
|
|
|
950 wait_delaying_user_input (property_deleted_p, (void *) tick);
|
|
|
951 }
|
|
|
952
|
|
|
953
|
|
|
954 /* Called from the event-loop in response to a PropertyNotify event.
|
|
|
955 */
|
|
|
956 void
|
|
|
957 x_handle_property_notify (XPropertyEvent *event)
|
|
|
958 {
|
|
|
959 struct prop_location *prev = 0, *rest = for_whom_the_bell_tolls;
|
|
|
960 while (rest)
|
|
|
961 {
|
|
|
962 if (rest->property == event->atom &&
|
|
|
963 rest->window == event->window &&
|
|
|
964 rest->display == event->display &&
|
|
|
965 rest->desired_state == event->state)
|
|
|
966 {
|
|
|
967 #if 0
|
|
|
968 stderr_out ("Saw expected prop-%s on %s\n",
|
|
|
969 (event->state == PropertyDelete ? "delete" : "change"),
|
|
|
970 (char *) string_data (XSYMBOL (x_atom_to_symbol (get_device_from_display (event->display), event->atom))->name);
|
|
|
971 #endif
|
|
|
972 if (prev)
|
|
|
973 prev->next = rest->next;
|
|
|
974 else
|
|
|
975 for_whom_the_bell_tolls = rest->next;
|
|
|
976 xfree (rest);
|
|
|
977 return;
|
|
|
978 }
|
|
|
979 prev = rest;
|
|
|
980 rest = rest->next;
|
|
|
981 }
|
|
|
982 #if 0
|
|
|
983 stderr_out ("Saw UNexpected prop-%s on %s\n",
|
|
|
984 (event->state == PropertyDelete ? "delete" : "change"),
|
|
|
985 (char *) string_data (XSYMBOL (x_atom_to_symbol (get_device_from_display (event->display), event->atom))->name));
|
|
|
986 #endif
|
|
|
987 }
|
|
|
988
|
|
|
989
|
|
|
990
|
|
|
991 #if 0 /* #### MULTIPLE doesn't work yet */
|
|
|
992
|
|
|
993 static Lisp_Object
|
|
|
994 fetch_multiple_target (XSelectionRequestEvent *event)
|
|
|
995 {
|
|
|
996 /* This function can GC */
|
|
|
997 Display *display = event->display;
|
|
|
998 Window window = event->requestor;
|
|
|
999 Atom target = event->target;
|
|
|
1000 Atom selection_atom = event->selection;
|
|
|
1001 int result;
|
|
|
1002
|
|
|
1003 return
|
|
|
1004 Fcons (QMULTIPLE,
|
|
|
1005 x_get_window_property_as_lisp_data (display, window, target,
|
|
|
1006 QMULTIPLE,
|
|
|
1007 selection_atom));
|
|
|
1008 }
|
|
|
1009
|
|
|
1010 static Lisp_Object
|
|
|
1011 copy_multiple_data (Lisp_Object obj)
|
|
|
1012 {
|
|
|
1013 Lisp_Object vec;
|
|
|
1014 int i;
|
|
173
|
1015 int len;
|
|
0
|
1016 if (CONSP (obj))
|
|
|
1017 return Fcons (XCAR (obj), copy_multiple_data (XCDR (obj)));
|
|
173
|
1018
|
|
0
|
1019 CHECK_VECTOR (obj);
|
|
173
|
1020 len = XVECTOR_LENGTH (obj);
|
|
|
1021 vec = make_vector (len, Qnil);
|
|
|
1022 for (i = 0; i < len; i++)
|
|
0
|
1023 {
|
|
173
|
1024 Lisp_Object vec2 = XVECTOR_DATA (obj) [i];
|
|
0
|
1025 CHECK_VECTOR (vec2);
|
|
173
|
1026 if (XVECTOR_LENGTH (vec2) != 2)
|
|
0
|
1027 signal_error (Qerror, list2 (build_string
|
|
|
1028 ("vectors must be of length 2"),
|
|
|
1029 vec2));
|
|
173
|
1030 XVECTOR_DATA (vec) [i] = make_vector (2, Qnil);
|
|
|
1031 XVECTOR_DATA (XVECTOR_DATA (vec) [i]) [0] = XVECTOR_DATA (vec2) [0];
|
|
|
1032 XVECTOR_DATA (XVECTOR_DATA (vec) [i]) [1] = XVECTOR_DATA (vec2) [1];
|
|
0
|
1033 }
|
|
|
1034 return vec;
|
|
|
1035 }
|
|
|
1036
|
|
272
|
1037 #endif /* 0 */
|
|
0
|
1038
|
|
|
1039
|
|
272
|
1040 static Window reading_selection_reply;
|
|
0
|
1041 static Atom reading_which_selection;
|
|
|
1042 static int selection_reply_timed_out;
|
|
|
1043
|
|
|
1044 static int
|
|
|
1045 selection_reply_done (void *ignore)
|
|
|
1046 {
|
|
|
1047 return !reading_selection_reply;
|
|
|
1048 }
|
|
|
1049
|
|
|
1050 static Lisp_Object Qx_selection_reply_timeout_internal;
|
|
|
1051
|
|
280
|
1052 DEFUN ("x-selection-reply-timeout-internal", Fx_selection_reply_timeout_internal,
|
|
|
1053 1, 1, 0, /*
|
|
20
|
1054 */
|
|
|
1055 (arg))
|
|
0
|
1056 {
|
|
|
1057 selection_reply_timed_out = 1;
|
|
|
1058 reading_selection_reply = 0;
|
|
|
1059 return Qnil;
|
|
|
1060 }
|
|
|
1061
|
|
|
1062
|
|
|
1063 /* Do protocol to read selection-data from the server.
|
|
|
1064 Converts this to lisp data and returns it.
|
|
|
1065 */
|
|
|
1066 static Lisp_Object
|
|
|
1067 x_get_foreign_selection (Lisp_Object selection_symbol, Lisp_Object target_type)
|
|
|
1068 {
|
|
|
1069 /* This function can GC */
|
|
|
1070 struct device *d = decode_x_device (Qnil);
|
|
|
1071 Display *display = DEVICE_X_DISPLAY (d);
|
|
|
1072 struct frame *sel_frame = selected_frame ();
|
|
|
1073 Window requestor_window = XtWindow (FRAME_X_TEXT_WIDGET (sel_frame));
|
|
|
1074 Time requestor_time = DEVICE_X_MOUSE_TIMESTAMP (d);
|
|
|
1075 Atom target_property = DEVICE_XATOM_EMACS_TMP (d);
|
|
|
1076 Atom selection_atom = symbol_to_x_atom (d, selection_symbol, 0);
|
|
|
1077 int speccount;
|
|
173
|
1078 Atom type_atom = symbol_to_x_atom (d, (CONSP (target_type) ?
|
|
|
1079 XCAR (target_type) : target_type), 0);
|
|
0
|
1080
|
|
|
1081 XConvertSelection (display, selection_atom, type_atom, target_property,
|
|
|
1082 requestor_window, requestor_time);
|
|
|
1083
|
|
|
1084 /* Block until the reply has been read. */
|
|
272
|
1085 reading_selection_reply = requestor_window;
|
|
0
|
1086 reading_which_selection = selection_atom;
|
|
|
1087 selection_reply_timed_out = 0;
|
|
|
1088
|
|
|
1089 speccount = specpdl_depth ();
|
|
|
1090
|
|
|
1091 /* add a timeout handler */
|
|
|
1092 if (x_selection_timeout > 0)
|
|
|
1093 {
|
|
|
1094 Lisp_Object id = Fadd_timeout (make_int (x_selection_timeout),
|
|
|
1095 Qx_selection_reply_timeout_internal,
|
|
|
1096 Qnil, Qnil);
|
|
|
1097 record_unwind_protect (Fdisable_timeout, id);
|
|
|
1098 }
|
|
|
1099
|
|
|
1100 /* This is ^Gable */
|
|
|
1101 wait_delaying_user_input (selection_reply_done, 0);
|
|
|
1102
|
|
|
1103 if (selection_reply_timed_out)
|
|
|
1104 error ("timed out waiting for reply from selection owner");
|
|
|
1105
|
|
|
1106 unbind_to (speccount, Qnil);
|
|
|
1107
|
|
|
1108 /* otherwise, the selection is waiting for us on the requested property. */
|
|
|
1109 return
|
|
|
1110 x_get_window_property_as_lisp_data (display, requestor_window,
|
|
|
1111 target_property, target_type,
|
|
|
1112 selection_atom);
|
|
|
1113 }
|
|
|
1114
|
|
|
1115
|
|
|
1116 static void
|
|
|
1117 x_get_window_property (Display *display, Window window, Atom property,
|
|
|
1118 unsigned char **data_ret, int *bytes_ret,
|
|
|
1119 Atom *actual_type_ret, int *actual_format_ret,
|
|
|
1120 unsigned long *actual_size_ret, int delete_p)
|
|
|
1121 {
|
|
|
1122 int total_size;
|
|
|
1123 unsigned long bytes_remaining;
|
|
|
1124 int offset = 0;
|
|
|
1125 unsigned char *tmp_data = 0;
|
|
|
1126 int result;
|
|
|
1127 int buffer_size = SELECTION_QUANTUM (display);
|
|
|
1128 if (buffer_size > MAX_SELECTION_QUANTUM) buffer_size = MAX_SELECTION_QUANTUM;
|
|
173
|
1129
|
|
0
|
1130 /* First probe the thing to find out how big it is. */
|
|
|
1131 result = XGetWindowProperty (display, window, property,
|
|
|
1132 0, 0, False, AnyPropertyType,
|
|
|
1133 actual_type_ret, actual_format_ret,
|
|
|
1134 actual_size_ret,
|
|
|
1135 &bytes_remaining, &tmp_data);
|
|
|
1136 if (result != Success)
|
|
|
1137 {
|
|
|
1138 *data_ret = 0;
|
|
|
1139 *bytes_ret = 0;
|
|
|
1140 return;
|
|
|
1141 }
|
|
|
1142 XFree ((char *) tmp_data);
|
|
173
|
1143
|
|
0
|
1144 if (*actual_type_ret == None || *actual_format_ret == 0)
|
|
|
1145 {
|
|
|
1146 if (delete_p) XDeleteProperty (display, window, property);
|
|
|
1147 *data_ret = 0;
|
|
|
1148 *bytes_ret = 0;
|
|
|
1149 return;
|
|
|
1150 }
|
|
|
1151
|
|
|
1152 total_size = bytes_remaining + 1;
|
|
|
1153 *data_ret = (unsigned char *) xmalloc (total_size);
|
|
173
|
1154
|
|
0
|
1155 /* Now read, until weve gotten it all. */
|
|
|
1156 while (bytes_remaining)
|
|
|
1157 {
|
|
|
1158 #if 0
|
|
|
1159 int last = bytes_remaining;
|
|
|
1160 #endif
|
|
|
1161 result =
|
|
|
1162 XGetWindowProperty (display, window, property,
|
|
|
1163 offset/4, buffer_size/4,
|
|
|
1164 (delete_p ? True : False),
|
|
|
1165 AnyPropertyType,
|
|
|
1166 actual_type_ret, actual_format_ret,
|
|
|
1167 actual_size_ret, &bytes_remaining, &tmp_data);
|
|
|
1168 #if 0
|
|
|
1169 stderr_out ("<< read %d\n", last-bytes_remaining);
|
|
|
1170 #endif
|
|
|
1171 /* If this doesn't return Success at this point, it means that
|
|
|
1172 some clod deleted the selection while we were in the midst of
|
|
|
1173 reading it. Deal with that, I guess....
|
|
|
1174 */
|
|
|
1175 if (result != Success) break;
|
|
|
1176 *actual_size_ret *= *actual_format_ret / 8;
|
|
|
1177 memcpy ((*data_ret) + offset, tmp_data, *actual_size_ret);
|
|
|
1178 offset += *actual_size_ret;
|
|
|
1179 XFree ((char *) tmp_data);
|
|
|
1180 }
|
|
|
1181 *bytes_ret = offset;
|
|
|
1182 }
|
|
|
1183
|
|
|
1184
|
|
|
1185 static void
|
|
|
1186 receive_incremental_selection (Display *display, Window window, Atom property,
|
|
|
1187 /* this one is for error messages only */
|
|
|
1188 Lisp_Object target_type,
|
|
|
1189 unsigned int min_size_bytes,
|
|
|
1190 unsigned char **data_ret, int *size_bytes_ret,
|
|
|
1191 Atom *type_ret, int *format_ret,
|
|
|
1192 unsigned long *size_ret)
|
|
|
1193 {
|
|
|
1194 /* This function can GC */
|
|
|
1195 int offset = 0;
|
|
|
1196 int prop_id;
|
|
|
1197 *size_bytes_ret = min_size_bytes;
|
|
|
1198 *data_ret = (unsigned char *) xmalloc (*size_bytes_ret);
|
|
|
1199 #if 0
|
|
|
1200 stderr_out ("\nread INCR %d\n", min_size_bytes);
|
|
|
1201 #endif
|
|
|
1202 /* At this point, we have read an INCR property, and deleted it (which
|
|
|
1203 is how we ack its receipt: the sending window will be selecting
|
|
|
1204 PropertyNotify events on our window to notice this).
|
|
|
1205
|
|
|
1206 Now, we must loop, waiting for the sending window to put a value on
|
|
|
1207 that property, then reading the property, then deleting it to ack.
|
|
|
1208 We are done when the sender places a property of length 0.
|
|
|
1209 */
|
|
|
1210 prop_id = expect_property_change (display, window, property,
|
|
|
1211 PropertyNewValue);
|
|
|
1212 while (1)
|
|
|
1213 {
|
|
|
1214 unsigned char *tmp_data;
|
|
|
1215 int tmp_size_bytes;
|
|
|
1216 wait_for_property_change (prop_id);
|
|
|
1217 /* expect it again immediately, because x_get_window_property may
|
|
|
1218 .. no it wont, I dont get it.
|
|
|
1219 .. Ok, I get it now, the Xt code that implements INCR is broken.
|
|
|
1220 */
|
|
|
1221 prop_id = expect_property_change (display, window, property,
|
|
|
1222 PropertyNewValue);
|
|
|
1223 x_get_window_property (display, window, property,
|
|
|
1224 &tmp_data, &tmp_size_bytes,
|
|
|
1225 type_ret, format_ret, size_ret, 1);
|
|
|
1226
|
|
|
1227 if (tmp_size_bytes == 0) /* we're done */
|
|
|
1228 {
|
|
|
1229 #if 0
|
|
|
1230 stderr_out (" read INCR done\n");
|
|
|
1231 #endif
|
|
|
1232 unexpect_property_change (prop_id);
|
|
|
1233 if (tmp_data) xfree (tmp_data);
|
|
|
1234 break;
|
|
|
1235 }
|
|
|
1236 #if 0
|
|
|
1237 stderr_out (" read INCR %d\n", tmp_size_bytes);
|
|
|
1238 #endif
|
|
|
1239 if (*size_bytes_ret < offset + tmp_size_bytes)
|
|
|
1240 {
|
|
|
1241 #if 0
|
|
|
1242 stderr_out (" read INCR realloc %d -> %d\n",
|
|
|
1243 *size_bytes_ret, offset + tmp_size_bytes);
|
|
|
1244 #endif
|
|
|
1245 *size_bytes_ret = offset + tmp_size_bytes;
|
|
|
1246 *data_ret = (unsigned char *) xrealloc (*data_ret, *size_bytes_ret);
|
|
|
1247 }
|
|
|
1248 memcpy ((*data_ret) + offset, tmp_data, tmp_size_bytes);
|
|
|
1249 offset += tmp_size_bytes;
|
|
|
1250 xfree (tmp_data);
|
|
|
1251 }
|
|
|
1252 }
|
|
|
1253
|
|
|
1254
|
|
|
1255 static Lisp_Object
|
|
|
1256 x_get_window_property_as_lisp_data (Display *display,
|
|
|
1257 Window window,
|
|
|
1258 Atom property,
|
|
|
1259 /* next two for error messages only */
|
|
|
1260 Lisp_Object target_type,
|
|
|
1261 Atom selection_atom)
|
|
|
1262 {
|
|
|
1263 /* This function can GC */
|
|
|
1264 Atom actual_type;
|
|
|
1265 int actual_format;
|
|
|
1266 unsigned long actual_size;
|
|
173
|
1267 unsigned char *data = NULL;
|
|
0
|
1268 int bytes = 0;
|
|
|
1269 Lisp_Object val;
|
|
|
1270 struct device *d = get_device_from_display (display);
|
|
|
1271
|
|
|
1272 x_get_window_property (display, window, property, &data, &bytes,
|
|
|
1273 &actual_type, &actual_format, &actual_size, 1);
|
|
|
1274 if (! data)
|
|
|
1275 {
|
|
173
|
1276 if (XGetSelectionOwner (display, selection_atom))
|
|
|
1277 /* there is a selection owner */
|
|
|
1278 signal_error
|
|
|
1279 (Qselection_conversion_error,
|
|
|
1280 Fcons (build_string ("selection owner couldn't convert"),
|
|
|
1281 Fcons (x_atom_to_symbol (d, selection_atom),
|
|
|
1282 actual_type ?
|
|
|
1283 list2 (target_type, x_atom_to_symbol (d, actual_type)) :
|
|
|
1284 list1 (target_type))));
|
|
|
1285 else
|
|
|
1286 signal_error (Qerror,
|
|
|
1287 list2 (build_string ("no selection"),
|
|
|
1288 x_atom_to_symbol (d, selection_atom)));
|
|
0
|
1289 }
|
|
173
|
1290
|
|
0
|
1291 if (actual_type == DEVICE_XATOM_INCR (d))
|
|
|
1292 {
|
|
173
|
1293 /* Ok, that data wasn't *the* data, it was just the beginning. */
|
|
0
|
1294
|
|
|
1295 unsigned int min_size_bytes = * ((unsigned int *) data);
|
|
173
|
1296 xfree (data);
|
|
0
|
1297 receive_incremental_selection (display, window, property, target_type,
|
|
|
1298 min_size_bytes, &data, &bytes,
|
|
|
1299 &actual_type, &actual_format,
|
|
|
1300 &actual_size);
|
|
|
1301 }
|
|
|
1302
|
|
|
1303 /* It's been read. Now convert it to a lisp object in some semi-rational
|
|
173
|
1304 manner. */
|
|
0
|
1305 val = selection_data_to_lisp_data (d, data, bytes,
|
|
|
1306 actual_type, actual_format);
|
|
173
|
1307
|
|
0
|
1308 xfree (data);
|
|
|
1309 return val;
|
|
|
1310 }
|
|
|
1311
|
|
|
1312 /* These functions convert from the selection data read from the server into
|
|
|
1313 something that we can use from elisp, and vice versa.
|
|
|
1314
|
|
|
1315 Type: Format: Size: Elisp Type:
|
|
|
1316 ----- ------- ----- -----------
|
|
|
1317 * 8 * String
|
|
|
1318 ATOM 32 1 Symbol
|
|
|
1319 ATOM 32 > 1 Vector of Symbols
|
|
|
1320 * 16 1 Integer
|
|
|
1321 * 16 > 1 Vector of Integers
|
|
|
1322 * 32 1 if <=16 bits: Integer
|
|
|
1323 if > 16 bits: Cons of top16, bot16
|
|
|
1324 * 32 > 1 Vector of the above
|
|
|
1325
|
|
|
1326 When converting a Lisp number to C, it is assumed to be of format 16 if
|
|
|
1327 it is an integer, and of format 32 if it is a cons of two integers.
|
|
|
1328
|
|
|
1329 When converting a vector of numbers from Elisp to C, it is assumed to be
|
|
|
1330 of format 16 if every element in the vector is an integer, and is assumed
|
|
|
1331 to be of format 32 if any element is a cons of two integers.
|
|
|
1332
|
|
|
1333 When converting an object to C, it may be of the form (SYMBOL . <data>)
|
|
|
1334 where SYMBOL is what we should claim that the type is. Format and
|
|
|
1335 representation are as above.
|
|
70
|
1336
|
|
|
1337 NOTE: Under Mule, when someone shoves us a string without a type, we
|
|
|
1338 set the type to 'COMPOUND_TEXT and automatically convert to Compound
|
|
|
1339 Text. If the string has a type, we assume that the user wants the
|
|
|
1340 data sent as-is so we just do "binary" conversion.
|
|
0
|
1341 */
|
|
|
1342
|
|
|
1343
|
|
|
1344 static Lisp_Object
|
|
|
1345 selection_data_to_lisp_data (struct device *d,
|
|
|
1346 unsigned char *data,
|
|
272
|
1347 size_t size,
|
|
0
|
1348 Atom type,
|
|
|
1349 int format)
|
|
|
1350 {
|
|
|
1351 if (type == DEVICE_XATOM_NULL (d))
|
|
|
1352 return QNULL;
|
|
|
1353
|
|
|
1354 /* Convert any 8-bit data to a string, for compactness. */
|
|
|
1355 else if (format == 8)
|
|
|
1356 return make_ext_string (data, size,
|
|
173
|
1357 type == DEVICE_XATOM_TEXT (d) ||
|
|
|
1358 type == DEVICE_XATOM_COMPOUND_TEXT (d)
|
|
0
|
1359 ? FORMAT_CTEXT : FORMAT_BINARY);
|
|
|
1360
|
|
185
|
1361 /* Convert a single atom to a Lisp Symbol. Convert a set of atoms to
|
|
0
|
1362 a vector of symbols.
|
|
|
1363 */
|
|
|
1364 else if (type == XA_ATOM)
|
|
|
1365 {
|
|
|
1366 if (size == sizeof (Atom))
|
|
|
1367 return x_atom_to_symbol (d, *((Atom *) data));
|
|
|
1368 else
|
|
|
1369 {
|
|
272
|
1370 int i;
|
|
|
1371 int len = size / sizeof (Atom);
|
|
|
1372 Lisp_Object v = Fmake_vector (make_int (len), Qzero);
|
|
|
1373 for (i = 0; i < len; i++)
|
|
|
1374 Faset (v, make_int (i), x_atom_to_symbol (d, ((Atom *) data) [i]));
|
|
0
|
1375 return v;
|
|
|
1376 }
|
|
|
1377 }
|
|
|
1378
|
|
185
|
1379 /* Convert a single 16 or small 32 bit number to a Lisp Int.
|
|
0
|
1380 If the number is > 16 bits, convert it to a cons of integers,
|
|
|
1381 16 bits in each half.
|
|
|
1382 */
|
|
|
1383 else if (format == 32 && size == sizeof (long))
|
|
|
1384 return word_to_lisp (((unsigned long *) data) [0]);
|
|
|
1385 else if (format == 16 && size == sizeof (short))
|
|
|
1386 return make_int ((int) (((unsigned short *) data) [0]));
|
|
|
1387
|
|
|
1388 /* Convert any other kind of data to a vector of numbers, represented
|
|
|
1389 as above (as an integer, or a cons of two 16 bit integers).
|
|
|
1390
|
|
|
1391 #### Perhaps we should return the actual type to lisp as well.
|
|
|
1392
|
|
|
1393 (x-get-selection-internal 'PRIMARY 'LINE_NUMBER)
|
|
|
1394 ==> [4 4]
|
|
|
1395
|
|
|
1396 and perhaps it should be
|
|
|
1397
|
|
|
1398 (x-get-selection-internal 'PRIMARY 'LINE_NUMBER)
|
|
|
1399 ==> (SPAN . [4 4])
|
|
|
1400
|
|
|
1401 Right now the fact that the return type was SPAN is discarded before
|
|
|
1402 lisp code gets to see it.
|
|
|
1403 */
|
|
|
1404 else if (format == 16)
|
|
|
1405 {
|
|
|
1406 int i;
|
|
|
1407 Lisp_Object v = make_vector (size / 4, Qzero);
|
|
272
|
1408 for (i = 0; i < (int) size / 4; i++)
|
|
0
|
1409 {
|
|
|
1410 int j = (int) ((unsigned short *) data) [i];
|
|
|
1411 Faset (v, make_int (i), make_int (j));
|
|
|
1412 }
|
|
|
1413 return v;
|
|
|
1414 }
|
|
|
1415 else
|
|
|
1416 {
|
|
|
1417 int i;
|
|
|
1418 Lisp_Object v = make_vector (size / 4, Qzero);
|
|
272
|
1419 for (i = 0; i < (int) size / 4; i++)
|
|
0
|
1420 {
|
|
|
1421 unsigned long j = ((unsigned long *) data) [i];
|
|
|
1422 Faset (v, make_int (i), word_to_lisp (j));
|
|
|
1423 }
|
|
|
1424 return v;
|
|
|
1425 }
|
|
|
1426 }
|
|
|
1427
|
|
|
1428
|
|
|
1429 static void
|
|
|
1430 lisp_data_to_selection_data (struct device *d,
|
|
|
1431 Lisp_Object obj,
|
|
|
1432 unsigned char **data_ret,
|
|
|
1433 Atom *type_ret,
|
|
|
1434 unsigned int *size_ret,
|
|
|
1435 int *format_ret)
|
|
|
1436 {
|
|
|
1437 Lisp_Object type = Qnil;
|
|
|
1438
|
|
|
1439 if (CONSP (obj) && SYMBOLP (XCAR (obj)))
|
|
|
1440 {
|
|
|
1441 type = XCAR (obj);
|
|
|
1442 obj = XCDR (obj);
|
|
|
1443 if (CONSP (obj) && NILP (XCDR (obj)))
|
|
|
1444 obj = XCAR (obj);
|
|
|
1445 }
|
|
|
1446
|
|
|
1447 if (EQ (obj, QNULL) || (EQ (type, QNULL)))
|
|
|
1448 { /* This is not the same as declining */
|
|
|
1449 *format_ret = 32;
|
|
|
1450 *size_ret = 0;
|
|
|
1451 *data_ret = 0;
|
|
|
1452 type = QNULL;
|
|
|
1453 }
|
|
|
1454 else if (STRINGP (obj))
|
|
|
1455 {
|
|
272
|
1456 CONST Extbyte *extval;
|
|
0
|
1457 Extcount extvallen;
|
|
|
1458
|
|
|
1459 if (NILP (type))
|
|
|
1460 GET_STRING_CTEXT_DATA_ALLOCA (obj, extval, extvallen);
|
|
|
1461 else
|
|
|
1462 GET_STRING_BINARY_DATA_ALLOCA (obj, extval, extvallen);
|
|
|
1463 *format_ret = 8;
|
|
|
1464 *size_ret = extvallen;
|
|
|
1465 *data_ret = (unsigned char *) xmalloc (*size_ret);
|
|
|
1466 memcpy (*data_ret, extval, *size_ret);
|
|
70
|
1467 #ifdef MULE
|
|
|
1468 if (NILP (type)) type = QCOMPOUND_TEXT;
|
|
|
1469 #else
|
|
0
|
1470 if (NILP (type)) type = QSTRING;
|
|
70
|
1471 #endif
|
|
|
1472 }
|
|
|
1473 else if (CHARP (obj))
|
|
|
1474 {
|
|
|
1475 Bufbyte buf[MAX_EMCHAR_LEN];
|
|
|
1476 Bytecount len;
|
|
|
1477 CONST Extbyte *extval;
|
|
|
1478 Extcount extvallen;
|
|
|
1479
|
|
|
1480 *format_ret = 8;
|
|
|
1481 len = set_charptr_emchar (buf, XCHAR (obj));
|
|
|
1482 GET_CHARPTR_EXT_CTEXT_DATA_ALLOCA (buf, len, extval, extvallen);
|
|
|
1483 *size_ret = extvallen;
|
|
|
1484 *data_ret = (unsigned char *) xmalloc (*size_ret);
|
|
|
1485 memcpy (*data_ret, extval, *size_ret);
|
|
|
1486 #ifdef MULE
|
|
|
1487 if (NILP (type)) type = QCOMPOUND_TEXT;
|
|
|
1488 #else
|
|
|
1489 if (NILP (type)) type = QSTRING;
|
|
|
1490 #endif
|
|
0
|
1491 }
|
|
|
1492 else if (SYMBOLP (obj))
|
|
|
1493 {
|
|
|
1494 *format_ret = 32;
|
|
|
1495 *size_ret = 1;
|
|
|
1496 *data_ret = (unsigned char *) xmalloc (sizeof (Atom) + 1);
|
|
|
1497 (*data_ret) [sizeof (Atom)] = 0;
|
|
|
1498 (*(Atom **) data_ret) [0] = symbol_to_x_atom (d, obj, 0);
|
|
|
1499 if (NILP (type)) type = QATOM;
|
|
|
1500 }
|
|
|
1501 else if (INTP (obj) &&
|
|
|
1502 XINT (obj) <= 0x7FFF &&
|
|
|
1503 XINT (obj) >= -0x8000)
|
|
|
1504 {
|
|
|
1505 *format_ret = 16;
|
|
|
1506 *size_ret = 1;
|
|
|
1507 *data_ret = (unsigned char *) xmalloc (sizeof (short) + 1);
|
|
|
1508 (*data_ret) [sizeof (short)] = 0;
|
|
|
1509 (*(short **) data_ret) [0] = (short) XINT (obj);
|
|
|
1510 if (NILP (type)) type = QINTEGER;
|
|
|
1511 }
|
|
|
1512 else if (INTP (obj) || CONSP (obj))
|
|
|
1513 {
|
|
|
1514 *format_ret = 32;
|
|
|
1515 *size_ret = 1;
|
|
|
1516 *data_ret = (unsigned char *) xmalloc (sizeof (long) + 1);
|
|
|
1517 (*data_ret) [sizeof (long)] = 0;
|
|
|
1518 (*(unsigned long **) data_ret) [0] = lisp_to_word (obj);
|
|
|
1519 if (NILP (type)) type = QINTEGER;
|
|
|
1520 }
|
|
|
1521 else if (VECTORP (obj))
|
|
|
1522 {
|
|
185
|
1523 /* Lisp Vectors may represent a set of ATOMs;
|
|
0
|
1524 a set of 16 or 32 bit INTEGERs;
|
|
|
1525 or a set of ATOM_PAIRs (represented as [[A1 A2] [A3 A4] ...]
|
|
|
1526 */
|
|
|
1527 int i;
|
|
|
1528
|
|
173
|
1529 if (SYMBOLP (XVECTOR_DATA (obj) [0]))
|
|
0
|
1530 /* This vector is an ATOM set */
|
|
|
1531 {
|
|
|
1532 if (NILP (type)) type = QATOM;
|
|
173
|
1533 *size_ret = XVECTOR_LENGTH (obj);
|
|
0
|
1534 *format_ret = 32;
|
|
|
1535 *data_ret = (unsigned char *) xmalloc ((*size_ret) * sizeof (Atom));
|
|
272
|
1536 for (i = 0; i < (int) (*size_ret); i++)
|
|
173
|
1537 if (SYMBOLP (XVECTOR_DATA (obj) [i]))
|
|
0
|
1538 (*(Atom **) data_ret) [i] =
|
|
173
|
1539 symbol_to_x_atom (d, XVECTOR_DATA (obj) [i], 0);
|
|
0
|
1540 else
|
|
|
1541 signal_error (Qerror, /* Qselection_error */
|
|
|
1542 list2 (build_string
|
|
|
1543 ("all elements of the vector must be of the same type"),
|
|
|
1544 obj));
|
|
|
1545 }
|
|
|
1546 #if 0 /* #### MULTIPLE doesn't work yet */
|
|
173
|
1547 else if (VECTORP (XVECTOR_DATA (obj) [0]))
|
|
0
|
1548 /* This vector is an ATOM_PAIR set */
|
|
|
1549 {
|
|
|
1550 if (NILP (type)) type = QATOM_PAIR;
|
|
173
|
1551 *size_ret = XVECTOR_LENGTH (obj);
|
|
0
|
1552 *format_ret = 32;
|
|
|
1553 *data_ret = (unsigned char *)
|
|
|
1554 xmalloc ((*size_ret) * sizeof (Atom) * 2);
|
|
|
1555 for (i = 0; i < *size_ret; i++)
|
|
173
|
1556 if (VECTORP (XVECTOR_DATA (obj) [i]))
|
|
0
|
1557 {
|
|
173
|
1558 Lisp_Object pair = XVECTOR_DATA (obj) [i];
|
|
|
1559 if (XVECTOR_LENGTH (pair) != 2)
|
|
0
|
1560 signal_error (Qerror,
|
|
173
|
1561 list2 (build_string
|
|
0
|
1562 ("elements of the vector must be vectors of exactly two elements"),
|
|
|
1563 pair));
|
|
173
|
1564
|
|
0
|
1565 (*(Atom **) data_ret) [i * 2] =
|
|
173
|
1566 symbol_to_x_atom (d, XVECTOR_DATA (pair) [0], 0);
|
|
0
|
1567 (*(Atom **) data_ret) [(i * 2) + 1] =
|
|
173
|
1568 symbol_to_x_atom (d, XVECTOR_DATA (pair) [1], 0);
|
|
0
|
1569 }
|
|
|
1570 else
|
|
|
1571 signal_error (Qerror,
|
|
|
1572 list2 (build_string
|
|
|
1573 ("all elements of the vector must be of the same type"),
|
|
|
1574 obj));
|
|
|
1575 }
|
|
|
1576 #endif
|
|
|
1577 else
|
|
|
1578 /* This vector is an INTEGER set, or something like it */
|
|
|
1579 {
|
|
173
|
1580 *size_ret = XVECTOR_LENGTH (obj);
|
|
0
|
1581 if (NILP (type)) type = QINTEGER;
|
|
|
1582 *format_ret = 16;
|
|
272
|
1583 for (i = 0; i < (int) (*size_ret); i++)
|
|
173
|
1584 if (CONSP (XVECTOR_DATA (obj) [i]))
|
|
0
|
1585 *format_ret = 32;
|
|
173
|
1586 else if (!INTP (XVECTOR_DATA (obj) [i]))
|
|
0
|
1587 signal_error (Qerror, /* Qselection_error */
|
|
|
1588 list2 (build_string
|
|
|
1589 ("all elements of the vector must be integers or conses of integers"),
|
|
|
1590 obj));
|
|
|
1591
|
|
|
1592 *data_ret = (unsigned char *) xmalloc (*size_ret * (*format_ret/8));
|
|
272
|
1593 for (i = 0; i < (int) (*size_ret); i++)
|
|
0
|
1594 if (*format_ret == 32)
|
|
|
1595 (*((unsigned long **) data_ret)) [i] =
|
|
173
|
1596 lisp_to_word (XVECTOR_DATA (obj) [i]);
|
|
0
|
1597 else
|
|
|
1598 (*((unsigned short **) data_ret)) [i] =
|
|
173
|
1599 (unsigned short) lisp_to_word (XVECTOR_DATA (obj) [i]);
|
|
0
|
1600 }
|
|
|
1601 }
|
|
|
1602 else
|
|
|
1603 signal_error (Qerror, /* Qselection_error */
|
|
|
1604 list2 (build_string ("unrecognized selection data"),
|
|
|
1605 obj));
|
|
|
1606
|
|
|
1607 *type_ret = symbol_to_x_atom (d, type, 0);
|
|
|
1608 }
|
|
|
1609
|
|
|
1610 static Lisp_Object
|
|
|
1611 clean_local_selection_data (Lisp_Object obj)
|
|
|
1612 {
|
|
|
1613 if (CONSP (obj) &&
|
|
|
1614 INTP (XCAR (obj)) &&
|
|
|
1615 CONSP (XCDR (obj)) &&
|
|
|
1616 INTP (XCAR (XCDR (obj))) &&
|
|
|
1617 NILP (XCDR (XCDR (obj))))
|
|
|
1618 obj = Fcons (XCAR (obj), XCDR (obj));
|
|
|
1619
|
|
|
1620 if (CONSP (obj) &&
|
|
|
1621 INTP (XCAR (obj)) &&
|
|
|
1622 INTP (XCDR (obj)))
|
|
|
1623 {
|
|
|
1624 if (XINT (XCAR (obj)) == 0)
|
|
|
1625 return XCDR (obj);
|
|
|
1626 if (XINT (XCAR (obj)) == -1)
|
|
|
1627 return make_int (- XINT (XCDR (obj)));
|
|
|
1628 }
|
|
|
1629 if (VECTORP (obj))
|
|
|
1630 {
|
|
|
1631 int i;
|
|
173
|
1632 int len = XVECTOR_LENGTH (obj);
|
|
0
|
1633 Lisp_Object copy;
|
|
173
|
1634 if (len == 1)
|
|
|
1635 return clean_local_selection_data (XVECTOR_DATA (obj) [0]);
|
|
|
1636 copy = make_vector (len, Qnil);
|
|
|
1637 for (i = 0; i < len; i++)
|
|
|
1638 XVECTOR_DATA (copy) [i] =
|
|
|
1639 clean_local_selection_data (XVECTOR_DATA (obj) [i]);
|
|
0
|
1640 return copy;
|
|
|
1641 }
|
|
|
1642 return obj;
|
|
|
1643 }
|
|
|
1644
|
|
|
1645
|
|
|
1646 /* Called from the event loop to handle SelectionNotify events.
|
|
|
1647 I don't think this needs to be reentrant.
|
|
|
1648 */
|
|
|
1649 void
|
|
|
1650 x_handle_selection_notify (XSelectionEvent *event)
|
|
|
1651 {
|
|
|
1652 if (! reading_selection_reply)
|
|
173
|
1653 message ("received an unexpected SelectionNotify event");
|
|
|
1654 else if (event->requestor != reading_selection_reply)
|
|
|
1655 message ("received a SelectionNotify event for the wrong window");
|
|
|
1656 else if (event->selection != reading_which_selection)
|
|
|
1657 message ("received the wrong selection type in SelectionNotify!");
|
|
|
1658 else
|
|
|
1659 reading_selection_reply = 0; /* we're done now. */
|
|
0
|
1660 }
|
|
|
1661
|
|
|
1662
|
|
20
|
1663 DEFUN ("x-own-selection-internal", Fx_own_selection_internal, 2, 2, 0, /*
|
|
0
|
1664 Assert an X selection of the given TYPE with the given VALUE.
|
|
|
1665 TYPE is a symbol, typically PRIMARY, SECONDARY, or CLIPBOARD.
|
|
|
1666 VALUE is typically a string, or a cons of two markers, but may be
|
|
|
1667 anything that the functions on selection-converter-alist know about.
|
|
20
|
1668 */
|
|
|
1669 (selection_name, selection_value))
|
|
0
|
1670 {
|
|
|
1671 CHECK_SYMBOL (selection_name);
|
|
|
1672 if (NILP (selection_value)) error ("selection-value may not be nil.");
|
|
|
1673 x_own_selection (selection_name, selection_value);
|
|
|
1674 return selection_value;
|
|
|
1675 }
|
|
|
1676
|
|
|
1677
|
|
|
1678 /* Request the selection value from the owner. If we are the owner,
|
|
|
1679 simply return our selection value. If we are not the owner, this
|
|
|
1680 will block until all of the data has arrived.
|
|
|
1681 */
|
|
20
|
1682 DEFUN ("x-get-selection-internal", Fx_get_selection_internal, 2, 2, 0, /*
|
|
0
|
1683 Return text selected from some X window.
|
|
173
|
1684 SELECTION_SYMBOL is a symbol, typically PRIMARY, SECONDARY, or CLIPBOARD.
|
|
|
1685 TARGET_TYPE is the type of data desired, typically STRING or COMPOUND_TEXT.
|
|
70
|
1686 Under Mule, if the resultant data comes back as 8-bit data in type
|
|
|
1687 TEXT or COMPOUND_TEXT, it will be decoded as Compound Text.
|
|
20
|
1688 */
|
|
|
1689 (selection_symbol, target_type))
|
|
0
|
1690 {
|
|
|
1691 /* This function can GC */
|
|
|
1692 Lisp_Object val = Qnil;
|
|
|
1693 struct gcpro gcpro1, gcpro2;
|
|
|
1694 GCPRO2 (target_type, val); /* we store newly consed data into these */
|
|
|
1695 CHECK_SYMBOL (selection_symbol);
|
|
|
1696
|
|
|
1697 #if 0 /* #### MULTIPLE doesn't work yet */
|
|
|
1698 if (CONSP (target_type) &&
|
|
|
1699 XCAR (target_type) == QMULTIPLE)
|
|
|
1700 {
|
|
|
1701 CHECK_VECTOR (XCDR (target_type));
|
|
|
1702 /* So we don't destructively modify this... */
|
|
|
1703 target_type = copy_multiple_data (target_type);
|
|
|
1704 }
|
|
|
1705 else
|
|
|
1706 #endif
|
|
|
1707 CHECK_SYMBOL (target_type);
|
|
|
1708
|
|
|
1709 val = x_get_local_selection (selection_symbol, target_type);
|
|
|
1710
|
|
|
1711 if (NILP (val))
|
|
|
1712 {
|
|
173
|
1713 val = x_get_foreign_selection (selection_symbol, target_type);
|
|
0
|
1714 }
|
|
173
|
1715 else
|
|
0
|
1716 {
|
|
173
|
1717 if (CONSP (val) && SYMBOLP (XCAR (val)))
|
|
|
1718 {
|
|
|
1719 val = XCDR (val);
|
|
|
1720 if (CONSP (val) && NILP (XCDR (val)))
|
|
|
1721 val = XCAR (val);
|
|
|
1722 }
|
|
|
1723 val = clean_local_selection_data (val);
|
|
0
|
1724 }
|
|
|
1725 UNGCPRO;
|
|
|
1726 return val;
|
|
|
1727 }
|
|
|
1728
|
|
20
|
1729 DEFUN ("x-disown-selection-internal", Fx_disown_selection_internal, 1, 2, 0, /*
|
|
0
|
1730 If we own the named selection, then disown it (make there be no selection).
|
|
20
|
1731 */
|
|
|
1732 (selection, timeval))
|
|
0
|
1733 {
|
|
|
1734 struct device *d = decode_x_device (Qnil);
|
|
|
1735 Display *display = DEVICE_X_DISPLAY (d);
|
|
|
1736 Time timestamp;
|
|
|
1737 Atom selection_atom;
|
|
|
1738 XSelectionClearEvent event;
|
|
|
1739
|
|
|
1740 CHECK_SYMBOL (selection);
|
|
|
1741 if (NILP (timeval))
|
|
|
1742 timestamp = DEVICE_X_MOUSE_TIMESTAMP (d);
|
|
|
1743 else
|
|
|
1744 {
|
|
|
1745 /* #### This is bogus. See the comment above about problems
|
|
|
1746 on OSF/1 and DEC Alphas. Yet another reason why it sucks
|
|
|
1747 to have the implementation (i.e. cons of two 16-bit
|
|
|
1748 integers) exposed. */
|
|
|
1749 time_t the_time;
|
|
|
1750 lisp_to_time (timeval, &the_time);
|
|
|
1751 timestamp = (Time) the_time;
|
|
|
1752 }
|
|
|
1753
|
|
|
1754 if (NILP (assq_no_quit (selection, Vselection_alist)))
|
|
|
1755 return Qnil; /* Don't disown the selection when we're not the owner. */
|
|
|
1756
|
|
|
1757 selection_atom = symbol_to_x_atom (d, selection, 0);
|
|
|
1758
|
|
|
1759 XSetSelectionOwner (display, selection_atom, None, timestamp);
|
|
|
1760
|
|
|
1761 /* It doesn't seem to be guaranteed that a SelectionClear event will be
|
|
|
1762 generated for a window which owns the selection when that window sets
|
|
|
1763 the selection owner to None. The NCD server does, the MIT Sun4 server
|
|
|
1764 doesn't. So we synthesize one; this means we might get two, but
|
|
|
1765 that's ok, because the second one won't have any effect.
|
|
|
1766 */
|
|
|
1767 event.display = display;
|
|
|
1768 event.selection = selection_atom;
|
|
|
1769 event.time = timestamp;
|
|
|
1770 x_handle_selection_clear (&event);
|
|
|
1771
|
|
|
1772 return Qt;
|
|
|
1773 }
|
|
|
1774
|
|
|
1775
|
|
20
|
1776 DEFUN ("x-selection-owner-p", Fx_selection_owner_p, 0, 1, 0, /*
|
|
272
|
1777 Return t if current emacs process owns the given X Selection.
|
|
0
|
1778 The arg should be the name of the selection in question, typically one of
|
|
|
1779 the symbols PRIMARY, SECONDARY, or CLIPBOARD. (For convenience, the symbol
|
|
|
1780 nil is the same as PRIMARY, and t is the same as SECONDARY.)
|
|
20
|
1781 */
|
|
|
1782 (selection))
|
|
0
|
1783 {
|
|
|
1784 CHECK_SYMBOL (selection);
|
|
272
|
1785 if (EQ (selection, Qnil)) selection = QPRIMARY;
|
|
|
1786 else if (EQ (selection, Qt)) selection = QSECONDARY;
|
|
173
|
1787
|
|
272
|
1788 return NILP (Fassq (selection, Vselection_alist)) ? Qnil : Qt;
|
|
0
|
1789 }
|
|
|
1790
|
|
20
|
1791 DEFUN ("x-selection-exists-p", Fx_selection_exists_p, 0, 1, 0, /*
|
|
0
|
1792 Whether there is an owner for the given X Selection.
|
|
|
1793 The arg should be the name of the selection in question, typically one of
|
|
|
1794 the symbols PRIMARY, SECONDARY, or CLIPBOARD. (For convenience, the symbol
|
|
|
1795 nil is the same as PRIMARY, and t is the same as SECONDARY.)
|
|
20
|
1796 */
|
|
|
1797 (selection))
|
|
0
|
1798 {
|
|
|
1799 struct device *d = decode_x_device (Qnil);
|
|
|
1800 Display *dpy = DEVICE_X_DISPLAY (d);
|
|
|
1801 CHECK_SYMBOL (selection);
|
|
|
1802 if (!NILP (Fx_selection_owner_p (selection)))
|
|
|
1803 return Qt;
|
|
175
|
1804 return XGetSelectionOwner (dpy, symbol_to_x_atom (d, selection, 0)) != None ?
|
|
173
|
1805 Qt : Qnil;
|
|
0
|
1806 }
|
|
|
1807
|
|
|
1808
|
|
|
1809 #ifdef CUT_BUFFER_SUPPORT
|
|
|
1810
|
|
|
1811 static int cut_buffers_initialized; /* Whether we're sure they all exist */
|
|
|
1812
|
|
|
1813 /* Ensure that all 8 cut buffers exist. ICCCM says we gotta... */
|
|
|
1814 static void
|
|
|
1815 initialize_cut_buffers (Display *display, Window window)
|
|
|
1816 {
|
|
16
|
1817 static unsigned CONST char * CONST data = (unsigned CONST char *) "";
|
|
0
|
1818 #define FROB(atom) XChangeProperty (display, window, atom, XA_STRING, 8, \
|
|
|
1819 PropModeAppend, data, 0)
|
|
|
1820 FROB (XA_CUT_BUFFER0);
|
|
|
1821 FROB (XA_CUT_BUFFER1);
|
|
|
1822 FROB (XA_CUT_BUFFER2);
|
|
|
1823 FROB (XA_CUT_BUFFER3);
|
|
|
1824 FROB (XA_CUT_BUFFER4);
|
|
|
1825 FROB (XA_CUT_BUFFER5);
|
|
|
1826 FROB (XA_CUT_BUFFER6);
|
|
|
1827 FROB (XA_CUT_BUFFER7);
|
|
|
1828 #undef FROB
|
|
|
1829 cut_buffers_initialized = 1;
|
|
|
1830 }
|
|
|
1831
|
|
|
1832 #define CHECK_CUTBUFFER(symbol) \
|
|
|
1833 { CHECK_SYMBOL (symbol); \
|
|
|
1834 if (!EQ((symbol),QCUT_BUFFER0) && !EQ((symbol),QCUT_BUFFER1) && \
|
|
|
1835 !EQ((symbol),QCUT_BUFFER2) && !EQ((symbol),QCUT_BUFFER3) && \
|
|
|
1836 !EQ((symbol),QCUT_BUFFER4) && !EQ((symbol),QCUT_BUFFER5) && \
|
|
|
1837 !EQ((symbol),QCUT_BUFFER6) && !EQ((symbol),QCUT_BUFFER7)) \
|
|
16
|
1838 signal_error (Qerror, list2 (build_string ("Doesn't name a cutbuffer"), \
|
|
0
|
1839 (symbol))); \
|
|
|
1840 }
|
|
|
1841
|
|
20
|
1842 DEFUN ("x-get-cutbuffer-internal", Fx_get_cutbuffer_internal, 1, 1, 0, /*
|
|
16
|
1843 Return the value of the named CUTBUFFER (typically CUT_BUFFER0).
|
|
20
|
1844 */
|
|
|
1845 (cutbuffer))
|
|
0
|
1846 {
|
|
|
1847 struct device *d = decode_x_device (Qnil);
|
|
|
1848 Display *display = DEVICE_X_DISPLAY (d);
|
|
|
1849 Window window = RootWindow (display, 0); /* Cutbuffers are on frame 0 */
|
|
16
|
1850 Atom cut_buffer_atom;
|
|
0
|
1851 unsigned char *data;
|
|
|
1852 int bytes;
|
|
|
1853 Atom type;
|
|
|
1854 int format;
|
|
|
1855 unsigned long size;
|
|
|
1856 Lisp_Object ret;
|
|
|
1857
|
|
16
|
1858 CHECK_CUTBUFFER (cutbuffer);
|
|
|
1859 cut_buffer_atom = symbol_to_x_atom (d, cutbuffer, 0);
|
|
0
|
1860
|
|
16
|
1861 x_get_window_property (display, window, cut_buffer_atom, &data, &bytes,
|
|
0
|
1862 &type, &format, &size, 0);
|
|
|
1863 if (!data) return Qnil;
|
|
16
|
1864
|
|
0
|
1865 if (format != 8 || type != XA_STRING)
|
|
16
|
1866 signal_simple_error_2 ("Cut buffer doesn't contain 8-bit STRING data",
|
|
0
|
1867 x_atom_to_symbol (d, type),
|
|
|
1868 make_int (format));
|
|
|
1869
|
|
70
|
1870 /* We cheat - if the string contains an ESC character, that's
|
|
|
1871 technically not allowed in a STRING, so we assume it's
|
|
|
1872 COMPOUND_TEXT that we stored there ourselves earlier,
|
|
|
1873 in x-store-cutbuffer-internal */
|
|
16
|
1874 ret = (bytes ?
|
|
|
1875 make_ext_string (data, bytes,
|
|
70
|
1876 memchr (data, 0x1b, bytes) ?
|
|
|
1877 FORMAT_CTEXT : FORMAT_BINARY)
|
|
16
|
1878 : Qnil);
|
|
0
|
1879 xfree (data);
|
|
|
1880 return ret;
|
|
|
1881 }
|
|
|
1882
|
|
|
1883
|
|
20
|
1884 DEFUN ("x-store-cutbuffer-internal", Fx_store_cutbuffer_internal, 2, 2, 0, /*
|
|
16
|
1885 Set the value of the named CUTBUFFER (typically CUT_BUFFER0) to STRING.
|
|
20
|
1886 */
|
|
|
1887 (cutbuffer, string))
|
|
0
|
1888 {
|
|
|
1889 struct device *d = decode_x_device (Qnil);
|
|
|
1890 Display *display = DEVICE_X_DISPLAY (d);
|
|
|
1891 Window window = RootWindow (display, 0); /* Cutbuffers are on frame 0 */
|
|
16
|
1892 Atom cut_buffer_atom;
|
|
272
|
1893 CONST Extbyte *data = XSTRING_DATA (string);
|
|
16
|
1894 Extcount bytes = XSTRING_LENGTH (string);
|
|
|
1895 Extcount bytes_remaining;
|
|
0
|
1896 int max_bytes = SELECTION_QUANTUM (display);
|
|
70
|
1897 #ifdef MULE
|
|
|
1898 CONST Bufbyte *ptr, *end;
|
|
|
1899 enum { ASCII, LATIN_1, WORLD } chartypes = ASCII;
|
|
|
1900 #endif
|
|
16
|
1901
|
|
|
1902 if (max_bytes > MAX_SELECTION_QUANTUM)
|
|
|
1903 max_bytes = MAX_SELECTION_QUANTUM;
|
|
0
|
1904
|
|
16
|
1905 CHECK_CUTBUFFER (cutbuffer);
|
|
0
|
1906 CHECK_STRING (string);
|
|
16
|
1907 cut_buffer_atom = symbol_to_x_atom (d, cutbuffer, 0);
|
|
|
1908
|
|
|
1909 if (! cut_buffers_initialized)
|
|
|
1910 initialize_cut_buffers (display, window);
|
|
|
1911
|
|
70
|
1912 /* We use the STRING encoding (Latin-1 only) if we can, else COMPOUND_TEXT.
|
|
|
1913 We cheat and use type = `STRING' even when using COMPOUND_TEXT.
|
|
|
1914 The ICCCM requires that this be so, and other clients assume it,
|
|
|
1915 as we do ourselves in initialize_cut_buffers. */
|
|
|
1916
|
|
173
|
1917 #ifdef MULE
|
|
70
|
1918 /* Optimize for the common ASCII case */
|
|
|
1919 for (ptr = data, end = ptr + bytes; ptr <= end; )
|
|
|
1920 {
|
|
|
1921 if (BYTE_ASCII_P (*ptr))
|
|
|
1922 {
|
|
|
1923 ptr++;
|
|
|
1924 continue;
|
|
|
1925 }
|
|
173
|
1926
|
|
74
|
1927 if ((*ptr) == LEADING_BYTE_LATIN_ISO8859_1 ||
|
|
70
|
1928 (*ptr) == LEADING_BYTE_CONTROL_1)
|
|
|
1929 {
|
|
|
1930 chartypes = LATIN_1;
|
|
|
1931 ptr += 2;
|
|
|
1932 continue;
|
|
|
1933 }
|
|
173
|
1934
|
|
70
|
1935 chartypes = WORLD;
|
|
|
1936 break;
|
|
|
1937 }
|
|
|
1938
|
|
169
|
1939 if (chartypes == LATIN_1)
|
|
|
1940 GET_STRING_BINARY_DATA_ALLOCA (string, data, bytes);
|
|
|
1941 else if (chartypes == WORLD)
|
|
|
1942 GET_STRING_CTEXT_DATA_ALLOCA (string, data, bytes);
|
|
70
|
1943 #endif /* MULE */
|
|
173
|
1944
|
|
0
|
1945 bytes_remaining = bytes;
|
|
|
1946
|
|
|
1947 while (bytes_remaining)
|
|
|
1948 {
|
|
16
|
1949 int chunk = bytes_remaining < max_bytes ? bytes_remaining : max_bytes;
|
|
|
1950 XChangeProperty (display, window, cut_buffer_atom, XA_STRING, 8,
|
|
0
|
1951 (bytes_remaining == bytes
|
|
16
|
1952 ? PropModeReplace : PropModeAppend),
|
|
0
|
1953 data, chunk);
|
|
|
1954 data += chunk;
|
|
|
1955 bytes_remaining -= chunk;
|
|
|
1956 }
|
|
|
1957 return string;
|
|
|
1958 }
|
|
|
1959
|
|
|
1960
|
|
20
|
1961 DEFUN ("x-rotate-cutbuffers-internal", Fx_rotate_cutbuffers_internal, 1, 1, 0, /*
|
|
0
|
1962 Rotate the values of the cutbuffers by the given number of steps;
|
|
|
1963 positive means move values forward, negative means backward.
|
|
20
|
1964 */
|
|
|
1965 (n))
|
|
0
|
1966 {
|
|
|
1967 struct device *d = decode_x_device (Qnil);
|
|
|
1968 Display *display = DEVICE_X_DISPLAY (d);
|
|
|
1969 Window window = RootWindow (display, 0); /* Cutbuffers are on frame 0 */
|
|
|
1970 Atom props [8];
|
|
|
1971
|
|
|
1972 CHECK_INT (n);
|
|
|
1973 if (XINT (n) == 0)
|
|
|
1974 return n;
|
|
|
1975 if (! cut_buffers_initialized)
|
|
|
1976 initialize_cut_buffers (display, window);
|
|
|
1977 props[0] = XA_CUT_BUFFER0;
|
|
|
1978 props[1] = XA_CUT_BUFFER1;
|
|
|
1979 props[2] = XA_CUT_BUFFER2;
|
|
|
1980 props[3] = XA_CUT_BUFFER3;
|
|
|
1981 props[4] = XA_CUT_BUFFER4;
|
|
|
1982 props[5] = XA_CUT_BUFFER5;
|
|
|
1983 props[6] = XA_CUT_BUFFER6;
|
|
|
1984 props[7] = XA_CUT_BUFFER7;
|
|
|
1985 XRotateWindowProperties (display, window, props, 8, XINT (n));
|
|
|
1986 return n;
|
|
|
1987 }
|
|
|
1988
|
|
16
|
1989 #endif /* CUT_BUFFER_SUPPORT */
|
|
0
|
1990
|
|
70
|
1991
|
|
0
|
1992
|
|
|
1993 /************************************************************************/
|
|
|
1994 /* initialization */
|
|
|
1995 /************************************************************************/
|
|
|
1996
|
|
|
1997 void
|
|
|
1998 syms_of_xselect (void)
|
|
|
1999 {
|
|
20
|
2000 DEFSUBR (Fx_get_selection_internal);
|
|
|
2001 DEFSUBR (Fx_own_selection_internal);
|
|
|
2002 DEFSUBR (Fx_disown_selection_internal);
|
|
|
2003 DEFSUBR (Fx_selection_owner_p);
|
|
|
2004 DEFSUBR (Fx_selection_exists_p);
|
|
0
|
2005
|
|
|
2006 #ifdef CUT_BUFFER_SUPPORT
|
|
20
|
2007 DEFSUBR (Fx_get_cutbuffer_internal);
|
|
|
2008 DEFSUBR (Fx_store_cutbuffer_internal);
|
|
|
2009 DEFSUBR (Fx_rotate_cutbuffers_internal);
|
|
16
|
2010 #endif /* CUT_BUFFER_SUPPORT */
|
|
0
|
2011
|
|
|
2012 /* Unfortunately, timeout handlers must be lisp functions. */
|
|
|
2013 defsymbol (&Qx_selection_reply_timeout_internal,
|
|
|
2014 "x-selection-reply-timeout-internal");
|
|
20
|
2015 DEFSUBR (Fx_selection_reply_timeout_internal);
|
|
0
|
2016
|
|
|
2017 defsymbol (&QPRIMARY, "PRIMARY");
|
|
|
2018 defsymbol (&QSECONDARY, "SECONDARY");
|
|
|
2019 defsymbol (&QSTRING, "STRING");
|
|
|
2020 defsymbol (&QINTEGER, "INTEGER");
|
|
|
2021 defsymbol (&QCLIPBOARD, "CLIPBOARD");
|
|
|
2022 defsymbol (&QTIMESTAMP, "TIMESTAMP");
|
|
|
2023 defsymbol (&QTEXT, "TEXT");
|
|
|
2024 defsymbol (&QDELETE, "DELETE");
|
|
|
2025 defsymbol (&QMULTIPLE, "MULTIPLE");
|
|
|
2026 defsymbol (&QINCR, "INCR");
|
|
|
2027 defsymbol (&QEMACS_TMP, "_EMACS_TMP_");
|
|
|
2028 defsymbol (&QTARGETS, "TARGETS");
|
|
|
2029 defsymbol (&QATOM, "ATOM");
|
|
|
2030 defsymbol (&QATOM_PAIR, "ATOM_PAIR");
|
|
|
2031 defsymbol (&QCOMPOUND_TEXT, "COMPOUND_TEXT");
|
|
|
2032 defsymbol (&QNULL, "NULL");
|
|
|
2033
|
|
|
2034 #ifdef CUT_BUFFER_SUPPORT
|
|
|
2035 defsymbol (&QCUT_BUFFER0, "CUT_BUFFER0");
|
|
|
2036 defsymbol (&QCUT_BUFFER1, "CUT_BUFFER1");
|
|
|
2037 defsymbol (&QCUT_BUFFER2, "CUT_BUFFER2");
|
|
|
2038 defsymbol (&QCUT_BUFFER3, "CUT_BUFFER3");
|
|
|
2039 defsymbol (&QCUT_BUFFER4, "CUT_BUFFER4");
|
|
|
2040 defsymbol (&QCUT_BUFFER5, "CUT_BUFFER5");
|
|
|
2041 defsymbol (&QCUT_BUFFER6, "CUT_BUFFER6");
|
|
|
2042 defsymbol (&QCUT_BUFFER7, "CUT_BUFFER7");
|
|
173
|
2043 #endif /* CUT_BUFFER_SUPPORT */
|
|
|
2044
|
|
|
2045 deferror (&Qselection_conversion_error,
|
|
|
2046 "selection-conversion-error",
|
|
|
2047 "selection-conversion error", Qio_error);
|
|
0
|
2048 }
|
|
|
2049
|
|
|
2050 void
|
|
|
2051 vars_of_xselect (void)
|
|
|
2052 {
|
|
|
2053 #ifdef CUT_BUFFER_SUPPORT
|
|
|
2054 cut_buffers_initialized = 0;
|
|
|
2055 Fprovide (intern ("cut-buffer"));
|
|
|
2056 #endif
|
|
|
2057
|
|
|
2058 reading_selection_reply = 0;
|
|
|
2059 reading_which_selection = 0;
|
|
|
2060 selection_reply_timed_out = 0;
|
|
|
2061 for_whom_the_bell_tolls = 0;
|
|
|
2062 prop_location_tick = 0;
|
|
|
2063
|
|
|
2064 Vselection_alist = Qnil;
|
|
|
2065 staticpro (&Vselection_alist);
|
|
|
2066
|
|
|
2067 DEFVAR_LISP ("selection-converter-alist", &Vselection_converter_alist /*
|
|
|
2068 An alist associating selection-types (such as STRING and TIMESTAMP) with
|
|
|
2069 functions. These functions will be called with three args: the name of the
|
|
|
2070 selection (typically PRIMARY, SECONDARY, or CLIPBOARD); a desired type to
|
|
|
2071 which the selection should be converted; and the local selection value
|
|
|
2072 (whatever had been passed to `x-own-selection'). These functions should
|
|
|
2073 return the value to send to the X server, which should be one of:
|
|
|
2074
|
|
|
2075 -- nil (the conversion could not be done)
|
|
|
2076 -- a cons of a symbol and any of the following values; the symbol
|
|
|
2077 explicitly specifies the type that will be sent.
|
|
70
|
2078 -- a string (If the type is not specified, then if Mule support exists,
|
|
|
2079 the string will be converted to Compound Text and sent in
|
|
|
2080 the 'COMPOUND_TEXT format; otherwise (no Mule support),
|
|
|
2081 the string will be left as-is and sent in the 'STRING
|
|
|
2082 format. If the type is specified, the string will be
|
|
|
2083 left as-is (or converted to binary format under Mule).
|
|
|
2084 In all cases, 8-bit data it sent.)
|
|
|
2085 -- a character (With Mule support, will be converted to Compound Text
|
|
|
2086 whether or not a type is specified. If a type is not
|
|
|
2087 specified, a type of 'STRING or 'COMPOUND_TEXT will be
|
|
|
2088 sent, as for strings.)
|
|
0
|
2089 -- the symbol 'NULL (Indicates that there is no meaningful return value.
|
|
|
2090 Empty 32-bit data with a type of 'NULL will be sent.)
|
|
|
2091 -- a symbol (Will be converted into an atom. If the type is not specified,
|
|
|
2092 a type of 'ATOM will be sent.)
|
|
|
2093 -- an integer (Will be converted into a 16-bit or 32-bit integer depending
|
|
|
2094 on the value. If the type is not specified, a type of
|
|
|
2095 'INTEGER will be sent.)
|
|
|
2096 -- a cons (HIGH . LOW) of integers (Will be converted into a 32-bit integer.
|
|
|
2097 If the type is not specified, a type of
|
|
|
2098 'INTEGER will be sent.)
|
|
|
2099 -- a vector of symbols (Will be converted into a list of atoms. If the type
|
|
|
2100 is not specified, a type of 'ATOM will be sent.)
|
|
|
2101 -- a vector of integers (Will be converted into a list of 16-bit integers.
|
|
|
2102 If the type is not specified, a type of 'INTEGER
|
|
|
2103 will be sent.)
|
|
|
2104 -- a vector of integers and/or conses (HIGH . LOW) of integers
|
|
|
2105 (Will be converted into a list of 16-bit integers.
|
|
|
2106 If the type is not specified, a type of 'INTEGER
|
|
|
2107 will be sent.)
|
|
|
2108 */ );
|
|
|
2109 Vselection_converter_alist = Qnil;
|
|
|
2110
|
|
|
2111 DEFVAR_LISP ("x-lost-selection-hooks", &Vx_lost_selection_hooks /*
|
|
|
2112 A function or functions to be called after the X server has notified us
|
|
|
2113 that we have lost the selection. The function(s) will be called with one
|
|
|
2114 argument, a symbol naming the selection (typically PRIMARY, SECONDARY, or
|
|
|
2115 CLIPBOARD).
|
|
|
2116 */ );
|
|
|
2117 Vx_lost_selection_hooks = Qunbound;
|
|
|
2118
|
|
|
2119 DEFVAR_LISP ("x-sent-selection-hooks", &Vx_sent_selection_hooks /*
|
|
|
2120 A function or functions to be called after we have responded to some
|
|
|
2121 other client's request for the value of a selection that we own. The
|
|
|
2122 function(s) will be called with four arguments:
|
|
|
2123 - the name of the selection (typically PRIMARY, SECONDARY, or CLIPBOARD);
|
|
|
2124 - the name of the selection-type which we were requested to convert the
|
|
|
2125 selection into before sending (for example, STRING or LENGTH);
|
|
|
2126 - and whether we successfully transmitted the selection.
|
|
|
2127 We might have failed (and declined the request) for any number of reasons,
|
|
|
2128 including being asked for a selection that we no longer own, or being asked
|
|
|
2129 to convert into a type that we don't know about or that is inappropriate.
|
|
|
2130 This hook doesn't let you change the behavior of emacs's selection replies,
|
|
|
2131 it merely informs you that they have happened.
|
|
|
2132 */ );
|
|
|
2133 Vx_sent_selection_hooks = Qunbound;
|
|
|
2134
|
|
|
2135 DEFVAR_INT ("x-selection-timeout", &x_selection_timeout /*
|
|
|
2136 If the selection owner doesn't reply in this many seconds, we give up.
|
|
|
2137 A value of 0 means wait as long as necessary. This is initialized from the
|
|
|
2138 \"*selectionTimeout\" resource (which is expressed in milliseconds).
|
|
|
2139 */ );
|
|
|
2140 x_selection_timeout = 0;
|
|
|
2141 }
|
|
|
2142
|
|
|
2143 void
|
|
|
2144 Xatoms_of_xselect (struct device *d)
|
|
|
2145 {
|
|
149
|
2146 Display *D = DEVICE_X_DISPLAY (d);
|
|
0
|
2147
|
|
|
2148 /* Non-predefined atoms that we might end up using a lot */
|
|
149
|
2149 DEVICE_XATOM_CLIPBOARD (d) = XInternAtom (D, "CLIPBOARD", False);
|
|
|
2150 DEVICE_XATOM_TIMESTAMP (d) = XInternAtom (D, "TIMESTAMP", False);
|
|
|
2151 DEVICE_XATOM_TEXT (d) = XInternAtom (D, "TEXT", False);
|
|
|
2152 DEVICE_XATOM_DELETE (d) = XInternAtom (D, "DELETE", False);
|
|
|
2153 DEVICE_XATOM_MULTIPLE (d) = XInternAtom (D, "MULTIPLE", False);
|
|
|
2154 DEVICE_XATOM_INCR (d) = XInternAtom (D, "INCR", False);
|
|
|
2155 DEVICE_XATOM_TARGETS (d) = XInternAtom (D, "TARGETS", False);
|
|
|
2156 DEVICE_XATOM_NULL (d) = XInternAtom (D, "NULL", False);
|
|
|
2157 DEVICE_XATOM_ATOM_PAIR (d) = XInternAtom (D, "ATOM_PAIR", False);
|
|
|
2158 DEVICE_XATOM_COMPOUND_TEXT (d) = XInternAtom (D, "COMPOUND_TEXT", False);
|
|
|
2159 DEVICE_XATOM_EMACS_TMP (d) = XInternAtom (D, "_EMACS_TMP_", False);
|
|
0
|
2160 }
|
