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0
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1 /* Implements elisp-programmable dialog boxes -- X interface.
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2 Copyright (C) 1993, 1994 Free Software Foundation, Inc.
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3 Copyright (C) 1995 Tinker Systems and INS Engineering Corp.
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4
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5 This file is part of XEmacs.
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6
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7 XEmacs is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 2, or (at your option) any
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10 later version.
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11
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12 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with XEmacs; see the file COPYING. If not, write to
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19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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20 Boston, MA 02111-1307, USA. */
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21
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22 /* Synched up with: Not in FSF. */
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23
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24 #include <config.h>
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25 #include "lisp.h"
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26
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27 #include "console-x.h"
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28 #include "EmacsFrame.h"
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29 #include "gui-x.h"
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30
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31 #include "buffer.h"
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32 #include "commands.h" /* zmacs_regions */
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33 #include "events.h"
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34 #include "frame.h"
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231
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35 #include "gui.h"
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0
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36 #include "opaque.h"
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37 #include "window.h"
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38
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39
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40 static void
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41 maybe_run_dbox_text_callback (LWLIB_ID id)
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42 {
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43 /* !!#### This function has not been Mule-ized */
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44 widget_value *wv;
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45 int got_some;
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46 wv = xmalloc_widget_value ();
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398
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47 wv->name = xstrdup ("value");
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0
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48 got_some = lw_get_some_values (id, wv);
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49 if (got_some)
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50 {
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51 Lisp_Object text_field_callback;
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52 char *text_field_value = wv->value;
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53 VOID_TO_LISP (text_field_callback, wv->call_data);
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406
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54 text_field_callback = XCAR (XCDR (text_field_callback));
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0
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55 if (text_field_value)
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56 {
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406
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57 void *tmp =
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58 LISP_TO_VOID (cons3 (Qnil,
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59 list2 (text_field_callback,
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60 build_string (text_field_value)),
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61 Qnil));
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0
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62 popup_selection_callback (0, id, (XtPointer) tmp);
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63 }
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64 }
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398
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65 /* This code tried to optimize, newing/freeing. This is generally
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66 unsafe so we will alwats strdup and always use
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67 free_widget_value_tree. */
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68 free_widget_value_tree (wv);
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0
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69 }
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70
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71 static void
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72 dbox_selection_callback (Widget widget, LWLIB_ID id, XtPointer client_data)
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73 {
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74 /* This is called with client_data == -1 when WM_DELETE_WINDOW is sent
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75 instead of a button being selected. */
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76 struct device *d = get_device_from_display (XtDisplay (widget));
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77 struct frame *f = 0;
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78 Widget cur_widget = widget;
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79
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80 /* The parent which is actually connected to our EmacsFrame may be a
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81 ways up the tree. */
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82 while (!f && cur_widget)
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83 {
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84 f = x_any_window_to_frame (d, XtWindow (cur_widget));
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85 cur_widget = XtParent (cur_widget);
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86 }
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87
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88 if (popup_handled_p (id))
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89 return;
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90 assert (popup_up_p != 0);
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91 ungcpro_popup_callbacks (id);
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92 popup_up_p--;
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93 maybe_run_dbox_text_callback (id);
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94 popup_selection_callback (widget, id, client_data);
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95 lw_destroy_all_widgets (id);
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96
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97 /* The Motif dialog box sets the keyboard focus to itself. When it
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98 goes away we have to take care of getting the focus back
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99 ourselves. */
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100 #ifdef EXTERNAL_WIDGET
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101 /* #### Not sure if this special case is necessary. */
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102 if (!FRAME_X_EXTERNAL_WINDOW_P (f) && f)
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103 #else
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104 if (f)
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105 #endif
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106 lw_set_keyboard_focus (FRAME_X_SHELL_WIDGET (f), FRAME_X_TEXT_WIDGET (f));
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107 }
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108
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398
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109 static const char * const button_names [] = {
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0
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110 "button1", "button2", "button3", "button4", "button5",
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111 "button6", "button7", "button8", "button9", "button10" };
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112
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113 /* can't have static frame locals because of some broken compilers */
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114 static char tmp_dbox_name [255];
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115
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116 static widget_value *
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117 dbox_descriptor_to_widget_value (Lisp_Object desc)
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118 {
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119 /* !!#### This function has not been Mule-ized */
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120 /* This function can GC */
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121 char *name;
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122 int lbuttons = 0, rbuttons = 0;
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123 int partition_seen = 0;
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124 int text_field_p = 0;
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125 int allow_text_p = 1;
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126 widget_value *prev = 0, *kids = 0;
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127 int n = 0;
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128 int count = specpdl_depth ();
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398
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129 Lisp_Object wv_closure, gui_item;
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0
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130
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131 CHECK_CONS (desc);
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132 CHECK_STRING (XCAR (desc));
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14
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133 name = (char *) XSTRING_DATA (LISP_GETTEXT (XCAR (desc)));
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0
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134 desc = XCDR (desc);
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135 if (!CONSP (desc))
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136 error ("dialog boxes must have some buttons");
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137
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138 /* Inhibit GC during this conversion. The reasons for this are
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139 the same as in menu_item_descriptor_to_widget_value(); see
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140 the large comment above that function. */
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141
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142 record_unwind_protect (restore_gc_inhibit,
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143 make_int (gc_currently_forbidden));
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144 gc_currently_forbidden = 1;
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145
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146 kids = prev = xmalloc_widget_value ();
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147
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148 /* Also make sure that we free the partially-created widget_value
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149 tree on Lisp error. */
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150
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151 wv_closure = make_opaque_ptr (kids);
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152 record_unwind_protect (widget_value_unwind, wv_closure);
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398
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153 prev->name = xstrdup ("message");
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0
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154 prev->value = xstrdup (name);
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155 prev->enabled = 1;
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156
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157 for (; !NILP (desc); desc = Fcdr (desc))
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158 {
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159 Lisp_Object button = XCAR (desc);
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160 widget_value *wv;
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161
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162 if (NILP (button))
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163 {
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164 if (partition_seen)
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165 error ("more than one partition (nil) seen in dbox spec");
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166 partition_seen = 1;
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167 continue;
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168 }
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169 CHECK_VECTOR (button);
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170 wv = xmalloc_widget_value ();
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171
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398
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172 gui_item = gui_parse_item_keywords (button);
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406
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173 if (!button_item_to_widget_value (Qdialog,
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174 gui_item, wv, allow_text_p, 1, 0))
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0
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175 {
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398
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176 free_widget_value_tree (wv);
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0
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177 continue;
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178 }
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179
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180 if (wv->type == TEXT_TYPE)
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181 {
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182 text_field_p = 1;
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183 allow_text_p = 0; /* only allow one */
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184 }
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185 else /* it's a button */
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186 {
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187 allow_text_p = 0; /* only allow text field at the front */
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398
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188 if (wv->value) xfree (wv->value);
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189 wv->value = wv->name; /* what a mess... */
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190 wv->name = xstrdup (button_names [n]);
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0
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191
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192 if (partition_seen)
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193 rbuttons++;
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194 else
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195 lbuttons++;
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196 n++;
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197
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198 if (lbuttons > 9 || rbuttons > 9)
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199 error ("too many buttons (9)"); /* #### this leaks */
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200 }
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201
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202 prev->next = wv;
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203 prev = wv;
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204 }
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205
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206 if (n == 0)
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207 error ("dialog boxes must have some buttons");
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208 {
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209 char type = (text_field_p ? 'P' : 'Q');
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210 widget_value *dbox;
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211 sprintf (tmp_dbox_name, "%c%dBR%d", type, lbuttons + rbuttons, rbuttons);
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212 dbox = xmalloc_widget_value ();
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398
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213 dbox->name = xstrdup (tmp_dbox_name);
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0
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214 dbox->contents = kids;
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215
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216 /* No more need to free the half-filled-in structures. */
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217 set_opaque_ptr (wv_closure, 0);
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218 unbind_to (count, Qnil);
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219 return dbox;
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220 }
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221 }
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222
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284
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223 static void
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224 x_popup_dialog_box (struct frame* f, Lisp_Object dbox_desc)
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0
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225 {
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226 int dbox_id;
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227 widget_value *data;
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228 Widget parent, dbox;
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229
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230 data = dbox_descriptor_to_widget_value (dbox_desc);
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231
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232 parent = FRAME_X_SHELL_WIDGET (f);
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233
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234 dbox_id = new_lwlib_id ();
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235 dbox = lw_create_widget (data->name, "dialog", dbox_id, data, parent, 1, 0,
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236 dbox_selection_callback, 0);
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237 lw_modify_all_widgets (dbox_id, data, True);
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238 lw_modify_all_widgets (dbox_id, data->contents, True);
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239 free_popup_widget_value_tree (data);
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240
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241 gcpro_popup_callbacks (dbox_id);
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242
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243 /* Setting zmacs-region-stays is necessary here because executing a
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244 command from a dialog is really a two-command process: the first
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245 command (bound to the button-click) simply pops up the dialog,
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246 and returns. This causes a sequence of magic-events (destined
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247 for the dialog widget) to begin. Eventually, a dialog item is
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248 selected, and a misc-user-event blip is pushed onto the end of
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249 the input stream, which is then executed by the event loop.
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185
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250
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0
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251 So there are two command-events, with a bunch of magic-events
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252 between them. We don't want the *first* command event to alter
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253 the state of the region, so that the region can be available as
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254 an argument for the second command. */
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255 if (zmacs_regions)
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256 zmacs_region_stays = 1;
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257
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258 popup_up_p++;
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259 lw_pop_up_all_widgets (dbox_id);
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260 }
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261
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262 void
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263 syms_of_dialog_x (void)
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264 {
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284
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265 }
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266
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267 void
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268 console_type_create_dialog_x (void)
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269 {
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270 CONSOLE_HAS_METHOD (x, popup_dialog_box);
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0
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271 }
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272
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273 void
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274 vars_of_dialog_x (void)
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275 {
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276 #if defined (LWLIB_DIALOGS_LUCID)
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277 Fprovide (intern ("lucid-dialogs"));
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278 #elif defined (LWLIB_DIALOGS_MOTIF)
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279 Fprovide (intern ("motif-dialogs"));
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280 #elif defined (LWLIB_DIALOGS_ATHENA)
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281 Fprovide (intern ("athena-dialogs"));
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282 #endif
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283 }
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