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1 /* Common code between client and shell widgets -- Xt only.
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2 Copyright (C) 1993, 1994 Sun Microsystems, Inc.
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3
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4 This library is free software; you can redistribute it and/or
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5 modify it under the terms of the GNU Library General Public
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6 License as published by the Free Software Foundation; either
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7 version 2 of the License, or (at your option) any later version.
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8
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9 This library is distributed in the hope that it will be useful,
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10 but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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12 Library General Public License for more details.
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13
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14 You should have received a copy of the GNU Library General Public
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15 License along with this library; if not, write to
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16 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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17 Boston, MA 02111-1307, USA. */
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18
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19 /* Synched up with: Not in FSF. */
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20
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21 /* Written by Ben Wing, September 1993. */
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22
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23 #ifdef emacs
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24
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25 #include <config.h>
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26
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27 #ifndef EXTERNAL_WIDGET
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28 ERROR! This ought not be getting compiled if EXTERNAL_WIDGET is undefined
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29 #endif
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30
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398
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31 void fatal (const char *fmt, ...);
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0
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32 #else /* not emacs */
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33 static void fatal (char *msg);
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34 #endif
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35
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36 #include <X11/Intrinsic.h>
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37 #include <X11/IntrinsicP.h>
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38 #include <stdlib.h>
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39 #include <stdio.h>
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40 #include "extw-Xt.h"
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41
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42 /* Yeah, that's portable!
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43
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44 Why the hell didn't the Xt people just export this function
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45 for real? */
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46
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47 #if (XT_REVISION > 5)
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48 int _XtWaitForSomething(
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49 XtAppContext app,
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50 _XtBoolean ignoreEvents,
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51 _XtBoolean ignoreTimers,
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52 _XtBoolean ignoreInputs,
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53 _XtBoolean ignoreSignals,
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54 _XtBoolean block,
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55 #ifdef XTHREADS
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56 _XtBoolean drop_lock,
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57 #endif
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58 unsigned long *howlong);
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59
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60 # ifndef XTHREADS
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61 # define _XtwaitForSomething(timers,inputs,events,block,howlong,appCtx) \
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62 _XtWaitForSomething(appCtx,events,timers,inputs,0,block,howlong)
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63 # else
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64 # define _XtwaitForSomething(timers,inputs,events,block,howlong,appCtx) \
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65 _XtWaitForSomething(appCtx,events,timers,inputs,0,block,1,howlong)
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66 # endif
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67 #else
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68 int _XtwaitForSomething(
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69 Boolean ignoreTimers,
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70 Boolean ignoreInputs,
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71 Boolean ignoreEvents,
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72 Boolean block,
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73 unsigned long *howlong,
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74 XtAppContext app
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75 );
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76 #endif
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77
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78 #ifdef DEBUG_WIDGET
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79
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80 static int geom_masks[] = {
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81 CWX, CWY, CWWidth, CWHeight, CWBorderWidth, CWSibling, CWStackMode,
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82 XtCWQueryOnly };
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83 static char *geom_mask_strings[] = {
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84 "CWX", "CWY", "CWWidth", "CWHeight", "CWBorderWidth",
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85 "CWSibling", "CWStackMode", "XtCWQueryOnly" };
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86 static int stack_modes[] = {
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87 Below, TopIf, BottomIf, Opposite, XtSMDontChange };
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88 static char *stack_mode_strings[] = {
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89 "Below", "TopIf", "BottomIf", "Opposite", "XtSMDontChange" };
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90
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91 static void
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92 print_geometry_structure(XtWidgetGeometry *xwg)
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93 {
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94 int num = sizeof(geom_masks)/sizeof(int);
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95 int i;
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96
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97 printf (" masks:");
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98 for (i=0; i<num; i++)
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99 if (xwg->request_mode & geom_masks[i])
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100 printf (" %s", geom_mask_strings[i]);
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101 printf ("\n");
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102 printf (" x:%d y:%d\n", xwg->x, xwg->y);
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103 printf (" width:%d height:%d border_width:%d\n", xwg->width,
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104 xwg->height, xwg->border_width);
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105 printf (" sibling: %x\n", xwg->sibling);
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106 printf (" stack_mode: ");
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107 for (i=0, num=sizeof(stack_modes)/sizeof(int); i<num; i++)
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108 if (xwg->stack_mode == stack_modes[i]) {
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109 printf ("%s", stack_mode_strings[i]);
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110 break;
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111 }
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112 printf ("\n");
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113 }
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114
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115 static void
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116 print_geometry_result (XtGeometryResult res)
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117 {
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118 printf ("result: %s\n",
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119 res == XtGeometryYes ? "XtGeometryYes" :
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120 res == XtGeometryNo ? "XtGeometryNo" :
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121 res == XtGeometryAlmost ? "XtGeometryAlmost" :
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122 res == XtGeometryDone ? "XtGeometryDone" :
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123 "unknown");
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124 }
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125
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126 #endif
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127
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128 #ifndef emacs
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129
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130 static void
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131 fatal (char *msg)
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132 {
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133 fprintf (stderr, "%s", msg);
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134 exit (1);
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135 }
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136
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137 #endif
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138
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139 /* put a geometry specification in the specified property on the window
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140 of the specified widget, and send a notification message to tell the
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141 client-side widget about this. */
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142
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143 void
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144 extw_send_geometry_value(Display *display, Window win, Atom property,
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145 en_extw_notify type, XtWidgetGeometry *xwg,
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146 long data0)
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147 {
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148 if (xwg != NULL)
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149 XChangeProperty(display, win, property,
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150 a_EXTW_WIDGET_GEOMETRY, 32, PropModeReplace,
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151 (unsigned char *) xwg, sizeof(*xwg)/sizeof(int));
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152 extw_send_notify_3(display, win, type, data0, 0, 0);
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153 }
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154
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155 /* get the geometry specification stored in the specified property of the
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156 specified widget's window. */
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157
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158 void
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159 extw_get_geometry_value(Display *display, Window win, Atom property,
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160 XtWidgetGeometry *xwg)
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161 {
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162 Atom dummy;
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163 int format;
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164 unsigned long nitems, bytes_after;
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165 unsigned char *prop;
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166
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167 if (XGetWindowProperty(display, win, property, 0,
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168 sizeof(*xwg)/4, False, a_EXTW_WIDGET_GEOMETRY,
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169 &dummy, &format, &nitems, &bytes_after,
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170 &prop) != Success)
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171 goto error;
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172 if (format != 8*sizeof(int) || bytes_after) {
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173 XFree((char *) prop);
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174 goto error;
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175 }
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176 *xwg = * (XtWidgetGeometry *) prop;
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177 return;
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178
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179 error:
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180 fatal("Unable to retrieve property for widget-geometry");
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181 #if 0
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182 XtAppErrorMsg(XtWidgetToApplicationContext((Widget)w),
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183 "invalidProperty","get_geometry_value",XtCXtToolkitError,
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184 "Unable to retrieve property for widget-geometry",
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185 (String *)NULL, (Cardinal *)NULL);
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186 #endif
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187 }
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188
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189 typedef struct {
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190 Widget w;
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191 unsigned long request_num;
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192 en_extw_notify type;
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193 } QueryStruct;
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194
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195 /* check if an event is of the sort we're looking for */
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196
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197 static Bool
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198 isMine(Display *dpy, XEvent *event, char *arg)
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199 {
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200 QueryStruct *q = (QueryStruct *) arg;
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201 Widget w = q->w;
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202
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203 if ( (dpy != XtDisplay(w)) || (event->xany.window != XtWindow(w)) ) {
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204 return FALSE;
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205 }
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206 if (event->xany.serial >= q->request_num) {
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207 if (event->type == ClientMessage &&
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208 event->xclient.message_type == a_EXTW_NOTIFY &&
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209 event->xclient.data.l[0] == 1 - extw_which_side &&
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210 event->xclient.data.l[1] == q->type)
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211 return TRUE;
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212 }
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213 return FALSE;
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214 }
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215
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216 /* wait for a ClientMessage of the specified type from the other widget, or
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217 time-out. isMine() determines whether an event matches. Culled from
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218 Shell.c. */
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219
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220 Bool
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221 extw_wait_for_response(Widget w, XEvent *event, unsigned long request_num,
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222 en_extw_notify type, unsigned long timeout)
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223 {
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224 XtAppContext app = XtWidgetToApplicationContext(w);
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225 QueryStruct q;
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226
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227 XFlush(XtDisplay(w));
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228 q.w = w;
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229 q.request_num = request_num;
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230 q.type = type;
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231
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232 for(;;) {
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233 /*
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234 * look for match event
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235 */
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236 if (XCheckIfEvent( XtDisplay(w), event, isMine, (char*)&q))
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237 return TRUE;
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238 if (_XtwaitForSomething(TRUE, TRUE, FALSE, TRUE, &timeout, app)
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239 != -1) continue;
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240 if (timeout == 0)
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241 return FALSE;
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242 }
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243 }
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