Popup.c revision fdf6a26f 
1/***********************************************************
2
3Copyright 1987, 1988, 1994, 1998  The Open Group
4
5Permission to use, copy, modify, distribute, and sell this software and its
6documentation for any purpose is hereby granted without fee, provided that
7the above copyright notice appear in all copies and that both that
8copyright notice and this permission notice appear in supporting
9documentation.
10
11The above copyright notice and this permission notice shall be included in
12all copies or substantial portions of the Software.
13
14THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
17OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
18AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
19CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
20
21Except as contained in this notice, the name of The Open Group shall not be
22used in advertising or otherwise to promote the sale, use or other dealings
23in this Software without prior written authorization from The Open Group.
24
25Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts.
26
27                        All Rights Reserved
28
29Permission to use, copy, modify, and distribute this software and its
30documentation for any purpose and without fee is hereby granted,
31provided that the above copyright notice appear in all copies and that
32both that copyright notice and this permission notice appear in
33supporting documentation, and that the name of Digital not be
34used in advertising or publicity pertaining to distribution of the
35software without specific, written prior permission.
36
37DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
38ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
39DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
40ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
41WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
42ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
43SOFTWARE.
44
45******************************************************************/
46
47#ifdef HAVE_CONFIG_H
48#include <config.h>
49#endif
50#include "IntrinsicI.h"
51#include "ShellP.h"
52
53void
54_XtPopup(Widget widget, XtGrabKind grab_kind, _XtBoolean spring_loaded)
55{
56    register ShellWidget shell_widget = (ShellWidget) widget;
57
58    if (!XtIsShell(widget)) {
59        XtAppErrorMsg(XtWidgetToApplicationContext(widget),
60                      "invalidClass", "xtPopup", XtCXtToolkitError,
61                      "XtPopup requires a subclass of shellWidgetClass",
62                      NULL, NULL);
63    }
64
65    if (!shell_widget->shell.popped_up) {
66        XtGrabKind call_data = grab_kind;
67
68        XtCallCallbacks(widget, XtNpopupCallback, (XtPointer) &call_data);
69        shell_widget->shell.popped_up = TRUE;
70        shell_widget->shell.grab_kind = grab_kind;
71        shell_widget->shell.spring_loaded = (Boolean) spring_loaded;
72        if (shell_widget->shell.create_popup_child_proc != NULL) {
73            (*(shell_widget->shell.create_popup_child_proc)) (widget);
74        }
75        if (grab_kind == XtGrabExclusive) {
76            XtAddGrab(widget, TRUE, spring_loaded);
77        }
78        else if (grab_kind == XtGrabNonexclusive) {
79            XtAddGrab(widget, FALSE, spring_loaded);
80        }
81        XtRealizeWidget(widget);
82        XMapRaised(XtDisplay(widget), XtWindow(widget));
83    }
84    else
85        XRaiseWindow(XtDisplay(widget), XtWindow(widget));
86
87}                               /* _XtPopup */
88
89void
90XtPopup(Widget widget, XtGrabKind grab_kind)
91{
92    Widget hookobj;
93
94    switch (grab_kind) {
95
96    case XtGrabNone:
97    case XtGrabExclusive:
98    case XtGrabNonexclusive:
99        break;
100
101    default:
102        XtAppWarningMsg(XtWidgetToApplicationContext(widget),
103                        "invalidGrabKind", "xtPopup", XtCXtToolkitError,
104                        "grab kind argument has invalid value; XtGrabNone assumed",
105                        NULL, NULL);
106        grab_kind = XtGrabNone;
107    }
108
109    _XtPopup(widget, grab_kind, FALSE);
110
111    hookobj = XtHooksOfDisplay(XtDisplay(widget));
112    if (XtHasCallbacks(hookobj, XtNchangeHook) == XtCallbackHasSome) {
113        XtChangeHookDataRec call_data;
114
115        call_data.type = XtHpopup;
116        call_data.widget = widget;
117        call_data.event_data = (XtPointer) (XtIntPtr) grab_kind;
118        XtCallCallbackList(hookobj,
119                           ((HookObject) hookobj)->hooks.changehook_callbacks,
120                           (XtPointer) &call_data);
121    }
122}                               /* XtPopup */
123
124void
125XtPopupSpringLoaded(Widget widget)
126{
127    Widget hookobj;
128
129    _XtPopup(widget, XtGrabExclusive, True);
130
131    hookobj = XtHooksOfDisplay(XtDisplay(widget));
132    if (XtHasCallbacks(hookobj, XtNchangeHook) == XtCallbackHasSome) {
133        XtChangeHookDataRec call_data;
134
135        call_data.type = XtHpopupSpringLoaded;
136        call_data.widget = widget;
137        XtCallCallbackList(hookobj,
138                           ((HookObject) hookobj)->hooks.changehook_callbacks,
139                           (XtPointer) &call_data);
140    }
141}
142
143void
144XtPopdown(Widget widget)
145{
146    /* Unmap a shell widget if it is mapped, and remove from grab list */
147    Widget hookobj;
148    ShellWidget shell_widget = (ShellWidget) widget;
149    XtGrabKind grab_kind;
150
151    if (!XtIsShell(widget)) {
152        XtAppErrorMsg(XtWidgetToApplicationContext(widget),
153                      "invalidClass", "xtPopdown", XtCXtToolkitError,
154                      "XtPopdown requires a subclass of shellWidgetClass",
155                      NULL, NULL);
156    }
157
158#ifndef X_NO_XT_POPDOWN_CONFORMANCE
159    if (!shell_widget->shell.popped_up)
160        return;
161#endif
162
163    grab_kind = shell_widget->shell.grab_kind;
164    XWithdrawWindow(XtDisplay(widget), XtWindow(widget),
165                    XScreenNumberOfScreen(XtScreen(widget)));
166    if (grab_kind != XtGrabNone)
167        XtRemoveGrab(widget);
168    shell_widget->shell.popped_up = FALSE;
169    XtCallCallbacks(widget, XtNpopdownCallback, (XtPointer) &grab_kind);
170
171    hookobj = XtHooksOfDisplay(XtDisplay(widget));
172    if (XtHasCallbacks(hookobj, XtNchangeHook) == XtCallbackHasSome) {
173        XtChangeHookDataRec call_data;
174
175        call_data.type = XtHpopdown;
176        call_data.widget = widget;
177        XtCallCallbackList(hookobj,
178                           ((HookObject) hookobj)->hooks.changehook_callbacks,
179                           (XtPointer) &call_data);
180    }
181}                               /* XtPopdown */
182
183void
184XtCallbackPopdown(Widget widget _X_UNUSED,
185                  XtPointer closure,
186                  XtPointer call_data _X_UNUSED)
187{
188    register XtPopdownID id = (XtPopdownID) closure;
189
190    XtPopdown(id->shell_widget);
191    if (id->enable_widget != NULL) {
192        XtSetSensitive(id->enable_widget, TRUE);
193    }
194}                               /* XtCallbackPopdown */
195