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428
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1 /* External shell widget.
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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 /* This is a special Shell that is designed to use an externally-
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24 provided window created by someone else (possibly another process).
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25 That other window should have an associated widget of class
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26 ExternalClient. The two widgets communicate with each other using
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27 ClientMessage events and properties on the external window.
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28
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29 Ideally this feature should be independent of Emacs. Unfortunately
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30 there are lots and lots of specifics that need to be dealt with
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31 for this to work properly, and some of them can't conveniently
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32 be handled within the widget's methods. Some day the code may
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33 be rewritten so that the embedded-widget feature can be used by
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34 any application, with appropriate entry points that are called
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35 at specific points within the application.
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36
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37 This feature is similar to the OLE (Object Linking & Embedding)
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38 feature provided by MS Windows.
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39 */
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40
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41 #ifdef emacs
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42
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43 #include <config.h>
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44
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45 #ifndef EXTERNAL_WIDGET
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46 ERROR! This ought not be getting compiled if EXTERNAL_WIDGET is undefined
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47 #endif
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48
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49 #endif /* emacs */
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50
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51 #include <stdio.h>
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52 #include <string.h>
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53 #include <X11/StringDefs.h>
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54 #include "xintrinsicp.h"
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55 #include <X11/Shell.h>
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56 #include <X11/ShellP.h>
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57 #include <X11/Vendor.h>
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58 #include <X11/VendorP.h>
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59 #include "ExternalShellP.h"
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60 #include "extw-Xt.h"
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61
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62 #ifdef emacs
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63 extern void emacs_Xt_handle_focus_event (XEvent *event);
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64 #endif
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65
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66 /* Communication between this shell and the client widget:
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67
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68 Communication is through ClientMessage events with message_type
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69 EXTW_NOTIFY and format 32. Both the shell and the client widget
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70 communicate with each other by sending the message to the same
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71 window (the "external window" below), and the data.l[0] value is
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72 used to determine who sent the message.
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73
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74 The data is formatted as follows:
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75
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76 data.l[0] = who sent this message: external_shell_send (0) or
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77 external_client_send (1)
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78 data.l[1] = message type (see enum en_extw_notify below)
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79 data.l[2-4] = data associated with this message
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80
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81 EventHandler() handles messages from the other side.
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82
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83 extw_send_notify_3() sends a message to the other side.
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84
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85 extw_send_geometry_value() is used when an XtWidgetGeometry structure
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86 needs to be sent. This is too much data to fit into a
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87 ClientMessage, so the data is stored in a property and then
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88 extw_send_notify_3() is called.
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89
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90 extw_get_geometry_value() receives an XtWidgetGeometry structure from a
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91 property.
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92
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93 extw_wait_for_response() is used when a response to a sent message
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94 is expected. It looks for a matching event within a
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95 particular timeout.
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96
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97 The particular message types are as follows:
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98
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99 1) extw_notify_init (event_window, event_mask)
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100
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101 This is sent from the shell to the client after the shell realizes
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102 its EmacsFrame widget on the client's "external window". This
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103 tells the client that it should start passing along events of the
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104 types specified in event_mask. event_window specifies the window
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105 of the EmacsFrame widget, which is a child of the client's
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106 external window.
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107
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108 extw_notify_init (client_type)
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109
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110 When the client receives an extw_notify_init message from the
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111 shell, it sends back a message of the same sort specifying the type
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112 of the toolkit used by the client (Motif, generic Xt, or Xlib).
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113
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114 2) extw_notify_end ()
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115
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116 This is sent from the shell to the client when the shell's
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117 EmacsFrame widget is destroyed, and tells the client to stop
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118 passing events along.
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119
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120 3) extw_notify_qg (result)
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121
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122 This is sent from the client to the shell when a QueryGeometry
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123 request is received on the client. The XtWidgetGeometry structure
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124 specified in the QueryGeometry request is passed on in the
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125 EXTW_QUERY_GEOMETRY property (of type EXTW_WIDGET_GEOMETRY) on the
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126 external window. result is unused.
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127
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128 In response, the shell passes the QueryGeometry request down the
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129 widget tree, and when a response is received, sends a message of
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130 type extw_notify_qg back to the client, with result specifying the
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131 GeometryResult value. If this value is XtGeometryAlmost, the
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132 returned XtWidgetGeometry structure is stored into the same property
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133 as above. [BPW is there a possible race condition here?]
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134
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135 4) extw_notify_gm (result)
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136
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137 A very similar procedure to that for extw_notify_qg is followed
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138 when the shell's RootGeometryManager method is called, indicating
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139 that a child widget wishes to change the shell's geometry. The
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140 XtWidgetGeometry structure is stored in the EXTW_GEOMETRY_MANAGER
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141 property.
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142
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143 5) extw_notify_focus_in (), extw_notify_focus_out ()
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144
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145 These are sent from the client to the shell when the client gains
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146 or loses the keyboard focus. It is done this way because Xt
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147 maintains its own concept of keyboard focus and only the client
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148 knows this information.
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149 */
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150
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151 #define NOTIFY(w, type, l0, l1, l2) \
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152 extw_send_notify_3(XtDisplay((Widget)(w)),\
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153 (w)->externalShell.external_window, type, l0, l1, l2)
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154
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155 static void ExternalShellInitialize (Widget req, Widget new, ArgList args,
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156 Cardinal *num_args);
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157 static void ExternalShellRealize (Widget wid, Mask *vmask, XSetWindowAttributes
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158 *attr);
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159 static void ExternalShellDestroy (Widget w);
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160 static void ChangeManaged (Widget wid);
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161 static XtGeometryResult ExternalShellRootGeometryManager (Widget gw,
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162 XtWidgetGeometry *request, XtWidgetGeometry *reply);
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163 static void EventHandler (Widget wid, XtPointer closure, XEvent *event,
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164 Boolean *continue_to_dispatch);
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165
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166 #ifndef DEFAULT_WM_TIMEOUT
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167 # define DEFAULT_WM_TIMEOUT 5000
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168 #endif
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169
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170 void ExternalShellUnrealize (Widget w);
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171
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172 static XtResource resources[] = {
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173 #define offset(field) XtOffset(ExternalShellWidget, externalShell.field)
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440
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174 { XtNwindow, XtCWindow,
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175 XtRWindow, sizeof (Window),
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176 offset (external_window), XtRImmediate, (XtPointer)0 },
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177 { XtNclientTimeout, XtCClientTimeout,
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178 XtRInt, sizeof (int),
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179 offset(client_timeout), XtRImmediate,(XtPointer)DEFAULT_WM_TIMEOUT },
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180 { XtNdeadClient, XtCDeadClient,
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181 XtRBoolean, sizeof (Boolean),
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182 offset(dead_client), XtRImmediate, (XtPointer)False },
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428
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183 };
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184
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185 static CompositeClassExtensionRec compositeClassExtRec = {
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186 NULL,
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187 NULLQUARK,
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188 XtCompositeExtensionVersion,
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440
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189 sizeof (CompositeClassExtensionRec),
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428
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190 TRUE,
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191 };
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192
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193 static ShellClassExtensionRec shellClassExtRec = {
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194 NULL,
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195 NULLQUARK,
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196 XtShellExtensionVersion,
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440
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197 sizeof (ShellClassExtensionRec),
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428
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198 ExternalShellRootGeometryManager
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199 };
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200
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201 ExternalShellClassRec externalShellClassRec = {
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202 { /*
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203 * core_class fields
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204 */
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205 /* superclass */ (WidgetClass) &shellClassRec,
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206 /* class_name */ "ExternalShell",
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440
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207 /* size */ sizeof (ExternalShellRec),
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428
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208 /* Class Initializer */ NULL,
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209 /* class_part_initialize*/ NULL, /* XtInheritClassPartInitialize, */
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210 /* Class init'ed ? */ FALSE,
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211 /* initialize */ ExternalShellInitialize,
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212 /* initialize_notify */ NULL,
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213 /* realize */ ExternalShellRealize,
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214 /* actions */ NULL,
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215 /* num_actions */ 0,
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216 /* resources */ resources,
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217 /* resource_count */ XtNumber (resources),
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218 /* xrm_class */ NULLQUARK,
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219 /* compress_motion */ FALSE,
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220 /* compress_exposure */ TRUE,
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221 /* compress_enterleave*/ FALSE,
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222 /* visible_interest */ TRUE,
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223 /* destroy */ ExternalShellDestroy, /* XtInheritDestroy, */
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224 /* resize */ XtInheritResize,
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225 /* expose */ NULL,
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226 /* set_values */ NULL, /* XtInheritSetValues, */
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440
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227 /* set_values_hook */ NULL,
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228 /* set_values_almost */ XtInheritSetValuesAlmost,
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229 /* get_values_hook */ NULL,
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428
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230 /* accept_focus */ NULL,
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231 /* intrinsics version */ XtVersion,
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232 /* callback offsets */ NULL,
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233 /* tm_table */ NULL,
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234 /* query_geometry */ NULL,
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235 /* display_accelerator*/ NULL,
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236 /* extension */ NULL
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237 },{ /* Composite */
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238 /* geometry_manager */ XtInheritGeometryManager,
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239 /* change_managed */ ChangeManaged, /* XtInheritChangeManaged */
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240 /* insert_child */ XtInheritInsertChild,
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241 /* delete_child */ XtInheritDeleteChild,
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242 /* extension */ (XtPointer)&compositeClassExtRec
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243 },{ /* Shell */
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244 /* extension */ (XtPointer)&shellClassExtRec
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245 },{ /* ExternalShell */
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246 0
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247 }
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248 };
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249
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250 WidgetClass externalShellWidgetClass = (WidgetClass) &externalShellClassRec;
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251
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252 static void
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253 ExternalShellInitialize (Widget req, Widget new, ArgList args,
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254 Cardinal *num_args)
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255 {
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256 XtAddEventHandler(new, 0,
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257 TRUE, EventHandler, (XtPointer) NULL);
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258 extw_initialize_atoms(XtDisplay(req));
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259 extw_which_side = extw_shell_send;
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260 }
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261
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262 static Widget
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263 find_managed_child (CompositeWidget w)
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264 {
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265 int i;
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266 Widget *childP = w->composite.children;
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267
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268 for (i = w->composite.num_children; i; i--, childP++)
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269 if (XtIsWidget(*childP) && XtIsManaged(*childP))
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270 return *childP;
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271 return NULL;
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272 }
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273
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274 #ifndef XtCXtToolkitError
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275 # define XtCXtToolkitError "XtToolkitError"
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276 #endif
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277
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278 static void EventHandler(wid, closure, event, continue_to_dispatch)
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279 Widget wid;
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280 XtPointer closure; /* unused */
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281 XEvent *event;
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282 Boolean *continue_to_dispatch; /* unused */
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283 {
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284 ExternalShellWidget w = (ExternalShellWidget) wid;
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285
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286 if(w->core.window != event->xany.window) {
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287 XtAppErrorMsg(XtWidgetToApplicationContext(wid),
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288 "invalidWindow","eventHandler",XtCXtToolkitError,
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289 "Event with wrong window",
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290 (String *)NULL, (Cardinal *)NULL);
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291 return;
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292 }
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293
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294 if (event->type == ClientMessage &&
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295 event->xclient.data.l[0] == extw_client_send &&
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296 event->xclient.message_type == a_EXTW_NOTIFY)
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297 switch (event->xclient.data.l[1]) {
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298
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299 case extw_notify_gm:
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300 /* client is alive again. */
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301 w->externalShell.dead_client = False;
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302 break;
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303
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304 case extw_notify_qg: {
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305 XtWidgetGeometry xwg, xwg_return;
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306 XtGeometryResult result;
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307 Widget child = find_managed_child((CompositeWidget) w);
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308
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309 if (child) {
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310 extw_get_geometry_value(XtDisplay(wid), XtWindow(wid),
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311 a_EXTW_QUERY_GEOMETRY, &xwg);
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312 result = XtQueryGeometry(child, &xwg, &xwg_return);
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313 } else
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314 result = XtGeometryYes;
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315
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316 extw_send_geometry_value(XtDisplay(wid), XtWindow(wid),
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317 a_EXTW_QUERY_GEOMETRY, extw_notify_qg,
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318 result == XtGeometryAlmost ? &xwg_return :
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319 NULL, result);
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320 break;
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321 }
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322
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323 case extw_notify_focus_in: {
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324 XFocusChangeEvent evnt;
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440
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325
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428
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326 evnt.type = FocusIn;
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327 evnt.serial = LastKnownRequestProcessed (XtDisplay (wid));
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328 evnt.send_event = True;
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329 evnt.display = XtDisplay (wid);
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330 evnt.window = XtWindow (wid);
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331 evnt.mode = NotifyNormal;
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332 evnt.detail = NotifyAncestor;
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333 #ifdef emacs
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334 emacs_Xt_handle_focus_event ((XEvent *) &evnt);
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335 #else
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336 XtDispatchEvent ((XEvent *) &evnt);
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337 #endif
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338 break;
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339 }
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440
|
340
|
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428
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341 case extw_notify_focus_out: {
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342 XFocusChangeEvent evnt;
|
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440
|
343
|
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428
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344 evnt.type = FocusOut;
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345 evnt.serial = LastKnownRequestProcessed (XtDisplay (wid));
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346 evnt.send_event = True;
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347 evnt.display = XtDisplay (wid);
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348 evnt.window = XtWindow (wid);
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349 evnt.mode = NotifyNormal;
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350 evnt.detail = NotifyAncestor;
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351 #ifdef emacs
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352 emacs_Xt_handle_focus_event ((XEvent *) &evnt);
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353 #else
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354 XtDispatchEvent ((XEvent *) &evnt);
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355 #endif
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356 break;
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357 }
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358
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359 case extw_notify_end:
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360 /* frame should be destroyed. */
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361 break;
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362 }
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363 }
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364
|
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|
365 /* Lifted almost entirely from GetGeometry() in Shell.c
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366 */
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367 static void
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368 GetGeometry (Widget W, Widget child)
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|
369 {
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370 ExternalShellWidget w = (ExternalShellWidget)W;
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371 int x, y, win_gravity = -1, flag;
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|
372 XSizeHints hints;
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|
373 Window win = w->externalShell.external_window;
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440
|
374
|
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428
|
375 {
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|
|
376 Window dummy_root;
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|
377 unsigned int dummy_bd_width, dummy_depth, width, height;
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|
440
|
378
|
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428
|
379 /* determine the existing size of the window. */
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|
380 XGetGeometry(XtDisplay(W), win, &dummy_root, &x, &y, &width,
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|
381 &height, &dummy_bd_width, &dummy_depth);
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382 w->core.width = width;
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|
383 w->core.height = height;
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|
384 }
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|
|
385
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|
|
386 if(w->shell.geometry != NULL) {
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|
|
387 char def_geom[128];
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|
|
388 int width, height;
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|
|
389
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|
390 x = w->core.x;
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391 y = w->core.y;
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|
392 width = w->core.width;
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|
393 height = w->core.height;
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|
|
394 hints.flags = 0;
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395
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|
|
396 sprintf( def_geom, "%dx%d+%d+%d", width, height, x, y );
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|
|
397 flag = XWMGeometry( XtDisplay(W),
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|
|
398 XScreenNumberOfScreen(XtScreen(W)),
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|
|
399 w->shell.geometry, def_geom,
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|
|
400 (unsigned int)w->core.border_width,
|
|
|
401 &hints, &x, &y, &width, &height,
|
|
|
402 &win_gravity
|
|
|
403 );
|
|
|
404 if (flag) {
|
|
|
405 if (flag & XValue) w->core.x = (Position)x;
|
|
|
406 if (flag & YValue) w->core.y = (Position)y;
|
|
|
407 if (flag & WidthValue) w->core.width = (Dimension)width;
|
|
|
408 if (flag & HeightValue) w->core.height = (Dimension)height;
|
|
|
409 }
|
|
|
410 else {
|
|
|
411 String params[2];
|
|
|
412 Cardinal num_params = 2;
|
|
|
413 params[0] = XtName(W);
|
|
|
414 params[1] = w->shell.geometry;
|
|
|
415 XtAppWarningMsg(XtWidgetToApplicationContext(W),
|
|
|
416 "badGeometry", "shellRealize", XtCXtToolkitError,
|
|
|
417 "Shell widget \"%s\" has an invalid geometry specification: \"%s\"",
|
|
|
418 params, &num_params);
|
|
|
419 }
|
|
|
420 }
|
|
|
421 else
|
|
|
422 flag = 0;
|
|
|
423
|
|
|
424 w->shell.client_specified |= _XtShellGeometryParsed;
|
|
|
425 }
|
|
|
426
|
|
|
427 /* Lifted almost entirely from Realize() in Shell.c
|
|
|
428 */
|
|
|
429 static void ExternalShellRealize (Widget wid, Mask *vmask,
|
|
|
430 XSetWindowAttributes *attr)
|
|
|
431 {
|
|
|
432 ExternalShellWidget w = (ExternalShellWidget) wid;
|
|
|
433 Mask mask = *vmask;
|
|
|
434 Window win = w->externalShell.external_window;
|
|
|
435
|
|
|
436 if (!win) {
|
|
|
437 Cardinal count = 1;
|
|
|
438 XtErrorMsg("invalidWindow","shellRealize", XtCXtToolkitError,
|
|
|
439 "No external window specified for ExternalShell widget %s",
|
|
|
440 &wid->core.name, &count);
|
|
|
441 }
|
|
|
442
|
|
|
443 if (! (w->shell.client_specified & _XtShellGeometryParsed)) {
|
|
|
444 /* we'll get here only if there was no child the first
|
|
|
445 time we were realized. If the shell was Unrealized
|
|
|
446 and then re-Realized, we probably don't want to
|
|
|
447 re-evaluate the defaults anyway.
|
|
|
448 */
|
|
|
449 GetGeometry(wid, (Widget)NULL);
|
|
|
450 }
|
|
|
451 else if (w->core.background_pixmap == XtUnspecifiedPixmap) {
|
|
|
452 /* I attempt to inherit my child's background to avoid screen flash
|
|
|
453 * if there is latency between when I get resized and when my child
|
|
|
454 * is resized. Background=None is not satisfactory, as I want the
|
|
|
455 * user to get immediate feedback on the new dimensions (most
|
|
|
456 * particularly in the case of a non-reparenting wm). It is
|
|
|
457 * especially important to have the server clear any old cruft
|
|
|
458 * from the display when I am resized larger.
|
|
|
459 */
|
|
|
460 Widget *childP = w->composite.children;
|
|
|
461 int i;
|
|
|
462 for (i = w->composite.num_children; i; i--, childP++) {
|
|
|
463 if (XtIsWidget(*childP) && XtIsManaged(*childP)) {
|
|
|
464 if ((*childP)->core.background_pixmap
|
|
|
465 != XtUnspecifiedPixmap) {
|
|
|
466 mask &= ~(CWBackPixel);
|
|
|
467 mask |= CWBackPixmap;
|
|
|
468 attr->background_pixmap =
|
|
|
469 w->core.background_pixmap =
|
|
|
470 (*childP)->core.background_pixmap;
|
|
|
471 } else {
|
|
440
|
472 attr->background_pixel =
|
|
|
473 w->core.background_pixel =
|
|
428
|
474 (*childP)->core.background_pixel;
|
|
|
475 }
|
|
|
476 break;
|
|
|
477 }
|
|
|
478 }
|
|
|
479 }
|
|
|
480
|
|
|
481 if(w->shell.save_under) {
|
|
|
482 mask |= CWSaveUnder;
|
|
|
483 attr->save_under = TRUE;
|
|
|
484 }
|
|
|
485 if(w->shell.override_redirect) {
|
|
|
486 mask |= CWOverrideRedirect;
|
|
|
487 attr->override_redirect = TRUE;
|
|
|
488 }
|
|
|
489 if (wid->core.width == 0 || wid->core.height == 0) {
|
|
|
490 Cardinal count = 1;
|
|
|
491 XtErrorMsg("invalidDimension", "shellRealize", XtCXtToolkitError,
|
|
|
492 "Shell widget %s has zero width and/or height",
|
|
|
493 &wid->core.name, &count);
|
|
|
494 }
|
|
|
495 wid->core.window = win;
|
|
|
496 XChangeWindowAttributes(XtDisplay(wid), wid->core.window,
|
|
|
497 mask, attr);
|
|
|
498
|
|
|
499 }
|
|
|
500
|
|
|
501 static void ExternalShellDestroy(wid)
|
|
|
502 Widget wid;
|
|
|
503 {
|
|
|
504 ExternalShellWidget w = (ExternalShellWidget)wid;
|
|
|
505
|
|
|
506 if (XtIsRealized(wid))
|
|
|
507 ExternalShellUnrealize(wid);
|
|
|
508
|
|
|
509 NOTIFY(w, extw_notify_end, 0, 0, 0);
|
|
|
510 }
|
|
|
511
|
|
|
512 /* Invoke matching routine from superclass, but first override its
|
|
|
513 geometry opinions with our own routine */
|
|
|
514
|
|
|
515 static void ChangeManaged(wid)
|
|
|
516 Widget wid;
|
|
|
517 {
|
|
|
518 if (!XtIsRealized (wid))
|
|
|
519 GetGeometry(wid, (Widget)NULL);
|
|
|
520 (*((ShellClassRec*)externalShellClassRec.core_class.superclass)->
|
|
|
521 composite_class.change_managed)(wid);
|
|
|
522 }
|
|
|
523
|
|
|
524 /* Based on RootGeometryManager() in Shell.c */
|
|
|
525
|
|
|
526 static XtGeometryResult ExternalShellRootGeometryManager(gw, request, reply)
|
|
|
527 Widget gw;
|
|
|
528 XtWidgetGeometry *request, *reply;
|
|
|
529 {
|
|
|
530 ExternalShellWidget w = (ExternalShellWidget)gw;
|
|
|
531 unsigned int mask = request->request_mode;
|
|
|
532 XEvent event;
|
|
|
533 int oldx, oldy, oldwidth, oldheight, oldborder_width;
|
|
|
534 unsigned long request_num;
|
|
|
535 XtWidgetGeometry req = *request; /* don't modify caller's structure */
|
|
|
536
|
|
|
537 oldx = w->core.x;
|
|
|
538 oldy = w->core.y;
|
|
|
539 oldwidth = w->core.width;
|
|
|
540 oldheight = w->core.height;
|
|
|
541 oldborder_width = w->core.border_width;
|
|
|
542
|
|
|
543 #define PutBackGeometry() \
|
|
|
544 { w->core.x = oldx; \
|
|
|
545 w->core.y = oldy; \
|
|
|
546 w->core.width = oldwidth; \
|
|
|
547 w->core.height = oldheight; \
|
|
|
548 w->core.border_width = oldborder_width; }
|
|
|
549
|
|
|
550 if (mask & CWX) {
|
|
|
551 if (w->core.x == request->x) mask &= ~CWX;
|
|
|
552 else
|
|
|
553 w->core.x = request->x;
|
|
|
554 }
|
|
|
555 if (mask & CWY) {
|
|
|
556 if (w->core.y == request->y) mask &= ~CWY;
|
|
|
557 else w->core.y = request->y;
|
|
|
558 }
|
|
|
559 if (mask & CWBorderWidth) {
|
|
|
560 if (w->core.border_width == request->border_width)
|
|
|
561 mask &= ~CWBorderWidth;
|
|
|
562 else w->core.border_width = request->border_width;
|
|
|
563 }
|
|
|
564 if (mask & CWWidth) {
|
|
|
565 if (w->core.width == request->width) mask &= ~CWWidth;
|
|
|
566 else w->core.width = request->width;
|
|
|
567 }
|
|
|
568 if (mask & CWHeight) {
|
|
|
569 if (w->core.height == request->height) mask &= ~CWHeight;
|
|
|
570 else w->core.height = request->height;
|
|
|
571 }
|
|
|
572
|
|
|
573 if (!XtIsRealized((Widget)w)) return XtGeometryYes;
|
|
|
574
|
|
|
575 req.sibling = None;
|
|
|
576 req.request_mode = mask & ~CWSibling;
|
|
|
577 request_num = NextRequest(XtDisplay(w));
|
|
|
578 extw_send_geometry_value(XtDisplay(w), XtWindow(w),
|
|
|
579 a_EXTW_GEOMETRY_MANAGER,
|
|
|
580 extw_notify_gm, &req, 0);
|
|
|
581
|
|
|
582 if (w->externalShell.dead_client == TRUE) {
|
|
|
583 /* The client is sick. Refuse the request.
|
|
|
584 * If the client recovers and decides to honor the
|
|
|
585 * request, it will be handled by Shell's EventHandler().
|
|
|
586 */
|
|
|
587 PutBackGeometry();
|
|
|
588 return XtGeometryNo;
|
|
|
589 }
|
|
|
590
|
|
|
591 if (extw_wait_for_response(gw, &event, request_num, extw_notify_gm,
|
|
|
592 w->externalShell.client_timeout)) {
|
|
|
593 XtGeometryResult result = (XtGeometryResult) event.xclient.data.l[2];
|
|
|
594
|
|
|
595 if (result != XtGeometryYes)
|
|
|
596 PutBackGeometry();
|
|
|
597 if (result == XtGeometryAlmost) {
|
|
|
598 extw_get_geometry_value(XtDisplay(w), XtWindow(w),
|
|
|
599 a_EXTW_GEOMETRY_MANAGER, reply);
|
|
|
600 }
|
|
|
601 return result;
|
|
|
602 } else {
|
|
|
603 w->externalShell.dead_client = TRUE; /* timed out; must be broken */
|
|
|
604 PutBackGeometry();
|
|
|
605 return XtGeometryNo;
|
|
|
606 }
|
|
|
607 #undef PutBackGeometry
|
|
|
608 }
|
|
|
609
|
|
|
610 static void
|
|
|
611 hack_event_masks_1 (Display *display, Window w, int this_window_propagate)
|
|
|
612 {
|
|
|
613 Window root, parent, *children;
|
|
|
614 unsigned int nchildren;
|
|
|
615 int i;
|
|
|
616
|
|
|
617 if (!XQueryTree (display, w, &root, &parent, &children, &nchildren))
|
|
|
618 return;
|
|
|
619 for (i=0; i<nchildren; i++)
|
|
|
620 hack_event_masks_1 (display, children[i], 1);
|
|
|
621 if (children)
|
|
|
622 XFree (children);
|
|
|
623 {
|
|
|
624 XWindowAttributes xwa;
|
|
|
625 XSetWindowAttributes xswa;
|
|
|
626 if (XGetWindowAttributes (display, w, &xwa)) {
|
|
|
627 xswa.event_mask = xwa.your_event_mask & ~KeyPressMask;
|
|
|
628 if (this_window_propagate)
|
|
|
629 xswa.do_not_propagate_mask = xwa.do_not_propagate_mask & ~KeyPressMask;
|
|
|
630 XChangeWindowAttributes (display, w, CWEventMask, &xswa);
|
|
|
631 }
|
|
|
632 }
|
|
|
633 }
|
|
|
634
|
|
|
635 /* fix all event masks on all subwindows of the specified window so that
|
|
|
636 all key presses in any subwindow filter up to the specified window.
|
|
|
637
|
|
|
638 We have to do this cruftiness with external widgets so that we don't
|
|
|
639 step on Motif's concept of keyboard focus. (Due to the nature of
|
|
|
640 Xt and Motif, X's idea of who gets the keyboard events may not jive
|
|
|
641 with Xt's idea of same, and Xt redirects the events to the proper
|
|
|
642 window. This occurs on the client side and we have no knowledge
|
|
|
643 of it, so we have to rely on a SendEvent from the client side to
|
|
|
644 receive our keyboard events.)
|
|
|
645 */
|
|
|
646
|
|
|
647 static void
|
|
|
648 hack_event_masks (Display *display, Window w)
|
|
|
649 {
|
|
|
650 hack_event_masks_1 (display, w, 0);
|
|
|
651 }
|
|
|
652
|
|
|
653 /* external entry points */
|
|
|
654
|
|
|
655 Bool
|
|
|
656 ExternalShellReady (Widget w, Window win, long event_mask)
|
|
|
657 {
|
|
|
658 ExternalShellWidget ew = (ExternalShellWidget) w;
|
|
|
659 XEvent event;
|
|
|
660 unsigned long request_num;
|
|
|
661
|
|
|
662 request_num = NextRequest(XtDisplay(w));
|
|
|
663 NOTIFY(ew, extw_notify_init, (long) win, event_mask, 0);
|
|
|
664 if (extw_wait_for_response(w, &event, request_num, extw_notify_init,
|
|
|
665 ew->externalShell.client_timeout))
|
|
|
666 {
|
|
|
667 /* Xt/Xm extw's have more elaborate focus needs than mere
|
|
|
668 Xlib ones.
|
|
|
669
|
|
|
670 Rather independently, they *don't* need the
|
|
|
671 ConfigureNotify event, having fixed up the window size in
|
|
|
672 ChangeManaged, above, but Xlib extw's do need this.
|
|
|
673 */
|
|
|
674 ew->externalShell.client_type = event.xclient.data.l[2];
|
|
|
675 if (ew->externalShell.client_type != EXTW_TYPE_XLIB)
|
|
|
676 {
|
|
|
677 hack_event_masks (XtDisplay (w), XtWindow (w));
|
|
|
678 }
|
|
|
679 else
|
|
|
680 {
|
|
|
681 XConfigureEvent ev;
|
|
|
682 XWindowAttributes xwa;
|
|
|
683 ev.type = ConfigureNotify;
|
|
|
684 ev.display = XtDisplay (w);
|
|
|
685 ev.event = ev.window = XtWindow (w);
|
|
|
686 XGetWindowAttributes (ev.display, ev.window, &xwa);
|
|
|
687 ev.x = xwa.x; ev.y = xwa.y;
|
|
|
688 ev.width = xwa.width; ev.height = xwa.height;
|
|
|
689 ev.border_width = xwa.border_width;
|
|
|
690 ev.above = None;
|
|
|
691 ev.override_redirect = xwa.override_redirect;
|
|
|
692 XtDispatchEvent ((XEvent *) &ev);
|
|
|
693 }
|
|
|
694 return TRUE;
|
|
|
695 }
|
|
|
696 else
|
|
|
697 return FALSE;
|
|
|
698 }
|
|
|
699
|
|
|
700 void
|
|
|
701 ExternalShellSetFocus (Widget wid)
|
|
|
702 {
|
|
|
703 ExternalShellWidget w = (ExternalShellWidget) wid;
|
|
|
704
|
|
|
705 NOTIFY(w, extw_notify_set_focus, 0, 0, 0);
|
|
|
706 }
|
|
|
707
|
|
|
708 extern void _XtUnregisterWindow (Window, Widget);
|
|
|
709
|
|
|
710 void
|
|
|
711 ExternalShellUnrealize (Widget w)
|
|
|
712 {
|
|
|
713 #if (XT_REVISION > 5)
|
|
|
714 XtUnregisterDrawable (XtDisplay (w), w->core.window);
|
|
|
715 #else
|
|
|
716 extern void _XtUnregisterWindow (Window, Widget);
|
|
|
717 _XtUnregisterWindow (w->core.window, w);
|
|
|
718 #endif
|
|
|
719 w->core.window = 0;
|
|
|
720 }
|
