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428
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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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442
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4 Copyright (C) 2000 Ben Wing.
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428
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5
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6 This file is part of XEmacs.
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7
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8 XEmacs is free software; you can redistribute it and/or modify it
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9 under the terms of the GNU General Public License as published by the
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10 Free Software Foundation; either version 2, or (at your option) any
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11 later version.
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12
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13 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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16 for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with XEmacs; see the file COPYING. If not, write to
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20 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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21 Boston, MA 02111-1307, USA. */
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22
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23 /* Synched up with: Not in FSF. */
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24
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442
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25 /* This file Mule-ized by Ben Wing, 7-8-00. */
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26
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428
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27 #include <config.h>
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28 #include "lisp.h"
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29
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30 #include "console-x.h"
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31 #include "EmacsFrame.h"
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32 #include "gui-x.h"
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33
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34 #include "buffer.h"
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35 #include "commands.h" /* zmacs_regions */
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36 #include "events.h"
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37 #include "frame.h"
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38 #include "gui.h"
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39 #include "opaque.h"
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40 #include "window.h"
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41
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42
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43 static void
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44 maybe_run_dbox_text_callback (LWLIB_ID id)
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45 {
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46 widget_value *wv;
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47 int got_some;
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48 wv = xmalloc_widget_value ();
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436
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49 wv->name = xstrdup ("value");
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428
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50 got_some = lw_get_some_values (id, wv);
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51 if (got_some)
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52 {
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53 Lisp_Object text_field_callback;
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442
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54 Extbyte *text_field_value = wv->value;
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428
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55 VOID_TO_LISP (text_field_callback, wv->call_data);
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442
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56 text_field_callback = XCAR (XCDR (text_field_callback));
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428
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57 if (text_field_value)
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58 {
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442
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59 void *tmp =
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60 LISP_TO_VOID (cons3 (Qnil,
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61 list2 (text_field_callback,
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62 build_ext_string (text_field_value,
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63 Qlwlib_encoding)),
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64 Qnil));
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428
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65 popup_selection_callback (0, id, (XtPointer) tmp);
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66 }
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67 }
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436
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68 /* This code tried to optimize, newing/freeing. This is generally
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442
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69 unsafe so we will always strdup and always use
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436
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70 free_widget_value_tree. */
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71 free_widget_value_tree (wv);
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428
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72 }
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73
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74 static void
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75 dbox_selection_callback (Widget widget, LWLIB_ID id, XtPointer client_data)
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76 {
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77 /* This is called with client_data == -1 when WM_DELETE_WINDOW is sent
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78 instead of a button being selected. */
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79 struct device *d = get_device_from_display (XtDisplay (widget));
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80 struct frame *f = 0;
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81 Widget cur_widget = widget;
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82
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83 /* The parent which is actually connected to our EmacsFrame may be a
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84 ways up the tree. */
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85 while (!f && cur_widget)
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86 {
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87 f = x_any_window_to_frame (d, XtWindow (cur_widget));
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88 cur_widget = XtParent (cur_widget);
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89 }
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90
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91 if (popup_handled_p (id))
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92 return;
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93 assert (popup_up_p != 0);
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94 ungcpro_popup_callbacks (id);
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95 popup_up_p--;
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96 maybe_run_dbox_text_callback (id);
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97 popup_selection_callback (widget, id, client_data);
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442
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98 /* #### need to error-protect! will do so when i merge in
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99 my working ws */
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100 va_run_hook_with_args (Qdelete_dialog_box_hook, 1, make_int (id));
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428
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101 lw_destroy_all_widgets (id);
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102
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103 /* The Motif dialog box sets the keyboard focus to itself. When it
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104 goes away we have to take care of getting the focus back
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105 ourselves. */
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106 #ifdef EXTERNAL_WIDGET
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107 /* #### Not sure if this special case is necessary. */
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108 if (!FRAME_X_EXTERNAL_WINDOW_P (f) && f)
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109 #else
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110 if (f)
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111 #endif
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112 lw_set_keyboard_focus (FRAME_X_SHELL_WIDGET (f), FRAME_X_TEXT_WIDGET (f));
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113 }
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114
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442
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115 static const Extbyte * const button_names [] = {
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428
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116 "button1", "button2", "button3", "button4", "button5",
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117 "button6", "button7", "button8", "button9", "button10" };
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118
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119 static widget_value *
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442
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120 dbox_descriptor_to_widget_value (Lisp_Object keys)
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428
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121 {
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122 /* This function can GC */
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123 int lbuttons = 0, rbuttons = 0;
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124 int partition_seen = 0;
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125 int text_field_p = 0;
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126 int allow_text_p = 1;
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127 widget_value *prev = 0, *kids = 0;
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128 int n = 0;
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129 int count = specpdl_depth ();
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130 Lisp_Object wv_closure, gui_item;
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442
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131 Lisp_Object question = Qnil, title = Qnil, buttons = Qnil;
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428
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132
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442
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133 {
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134 EXTERNAL_PROPERTY_LIST_LOOP_3 (key, value, keys)
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135 {
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136 if (EQ (key, Q_question))
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137 {
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138 CHECK_STRING (value);
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139 question = value;
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140 }
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141 else if (EQ (key, Q_title))
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142 {
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143 CHECK_STRING (value);
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144 title = value;
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145 }
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146 else if (EQ (key, Q_buttons))
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147 {
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148 CHECK_LIST (value);
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149 buttons = value;
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150 }
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151 else
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152 syntax_error ("Unrecognized question-dialog keyword", key);
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153 }
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154 }
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155
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156 if (NILP (question))
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157 syntax_error ("Dialog descriptor provides no question", keys);
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428
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158
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159 /* Inhibit GC during this conversion. The reasons for this are
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160 the same as in menu_item_descriptor_to_widget_value(); see
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161 the large comment above that function. */
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162
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163 record_unwind_protect (restore_gc_inhibit,
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164 make_int (gc_currently_forbidden));
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165 gc_currently_forbidden = 1;
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166
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167 kids = prev = xmalloc_widget_value ();
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168
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169 /* Also make sure that we free the partially-created widget_value
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170 tree on Lisp error. */
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171
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172 wv_closure = make_opaque_ptr (kids);
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173 record_unwind_protect (widget_value_unwind, wv_closure);
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436
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174 prev->name = xstrdup ("message");
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442
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175 LISP_STRING_TO_EXTERNAL_MALLOC (question, prev->value, Qlwlib_encoding);
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428
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176 prev->enabled = 1;
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177
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442
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178 {
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179 EXTERNAL_LIST_LOOP_2 (button, buttons)
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180 {
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181 widget_value *wv;
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428
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182
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442
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183 if (NILP (button))
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184 {
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185 if (partition_seen)
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186 syntax_error ("More than one partition (nil) seen in dbox spec",
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187 keys);
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188 partition_seen = 1;
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189 continue;
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190 }
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191 CHECK_VECTOR (button);
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192 wv = xmalloc_widget_value ();
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428
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193
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442
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194 gui_item = gui_parse_item_keywords (button);
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195 if (!button_item_to_widget_value (Qdialog,
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196 gui_item, wv, allow_text_p, 1, 0, 1))
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197 {
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198 free_widget_value_tree (wv);
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199 continue;
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200 }
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428
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201
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442
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202 if (wv->type == TEXT_TYPE)
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203 {
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204 text_field_p = 1;
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205 allow_text_p = 0; /* only allow one */
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206 }
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207 else /* it's a button */
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208 {
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209 allow_text_p = 0; /* only allow text field at the front */
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210 if (wv->value)
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211 xfree (wv->value);
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212 wv->value = wv->name; /* what a mess... */
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213 wv->name = xstrdup (button_names [n]);
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428
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214
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442
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215 if (partition_seen)
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216 rbuttons++;
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217 else
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218 lbuttons++;
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219 n++;
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428
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220
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442
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221 if (lbuttons > 9 || rbuttons > 9)
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222 syntax_error ("Too many buttons (9)",
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223 keys); /* #### this leaks */
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224 }
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428
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225
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442
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226 prev->next = wv;
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227 prev = wv;
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228 }
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229 }
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428
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230
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231 if (n == 0)
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442
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232 syntax_error ("Dialog boxes must have some buttons", keys);
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233
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428
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234 {
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442
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235 Extbyte type = (text_field_p ? 'P' : 'Q');
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236 static Extbyte tmp_dbox_name [255];
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237
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428
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238 widget_value *dbox;
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239 sprintf (tmp_dbox_name, "%c%dBR%d", type, lbuttons + rbuttons, rbuttons);
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240 dbox = xmalloc_widget_value ();
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436
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241 dbox->name = xstrdup (tmp_dbox_name);
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428
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242 dbox->contents = kids;
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243
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244 /* No more need to free the half-filled-in structures. */
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245 set_opaque_ptr (wv_closure, 0);
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246 unbind_to (count, Qnil);
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247 return dbox;
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248 }
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249 }
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250
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442
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251 static Lisp_Object
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252 x_make_dialog_box_internal (struct frame* f, Lisp_Object type,
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253 Lisp_Object keys)
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428
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254 {
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255 int dbox_id;
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256 widget_value *data;
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257 Widget parent, dbox;
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258
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442
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259 if (!EQ (type, Qquestion))
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260 signal_type_error (Qunimplemented, "Dialog box type", type);
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261
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262 data = dbox_descriptor_to_widget_value (keys);
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428
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263
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264 parent = FRAME_X_SHELL_WIDGET (f);
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265
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266 dbox_id = new_lwlib_id ();
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267 dbox = lw_create_widget (data->name, "dialog", dbox_id, data, parent, 1, 0,
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268 dbox_selection_callback, 0);
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269 lw_modify_all_widgets (dbox_id, data, True);
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270 lw_modify_all_widgets (dbox_id, data->contents, True);
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271 free_popup_widget_value_tree (data);
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272
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273 gcpro_popup_callbacks (dbox_id);
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274
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275 /* Setting zmacs-region-stays is necessary here because executing a
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276 command from a dialog is really a two-command process: the first
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277 command (bound to the button-click) simply pops up the dialog,
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278 and returns. This causes a sequence of magic-events (destined
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279 for the dialog widget) to begin. Eventually, a dialog item is
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280 selected, and a misc-user-event blip is pushed onto the end of
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281 the input stream, which is then executed by the event loop.
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282
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283 So there are two command-events, with a bunch of magic-events
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284 between them. We don't want the *first* command event to alter
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285 the state of the region, so that the region can be available as
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286 an argument for the second command. */
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287 if (zmacs_regions)
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288 zmacs_region_stays = 1;
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289
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290 popup_up_p++;
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291 lw_pop_up_all_widgets (dbox_id);
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442
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292
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293 /* #### this could (theoretically) cause problems if we are up for
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294 a REALLY REALLY long time -- too big to fit into lisp integer. */
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295 return make_int (dbox_id);
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428
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296 }
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297
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298 void
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299 syms_of_dialog_x (void)
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300 {
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301 }
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302
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303 void
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304 console_type_create_dialog_x (void)
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305 {
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442
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306 CONSOLE_HAS_METHOD (x, make_dialog_box_internal);
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428
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307 }
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308
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309 void
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310 vars_of_dialog_x (void)
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311 {
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312 #if defined (LWLIB_DIALOGS_LUCID)
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313 Fprovide (intern ("lucid-dialogs"));
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314 #elif defined (LWLIB_DIALOGS_MOTIF)
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315 Fprovide (intern ("motif-dialogs"));
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316 #elif defined (LWLIB_DIALOGS_ATHENA)
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317 Fprovide (intern ("athena-dialogs"));
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318 #endif
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319 }
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