1 /*
2 * Copyright (c) 1996, 2007, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 #ifndef AWT_DIALOG_H
27 #define AWT_DIALOG_H
28
29 #include "awt_Frame.h"
30
31 #include "java_awt_Dialog.h"
32 #include "sun_awt_windows_WDialogPeer.h"
33
34
35 /************************************************************************
36 * AwtDialog class
37 */
38 // unification with AwtComponent
39 #define AWT_DIALOG_WINDOW_CLASS_NAME TEXT("SunAwtDialog")
40
41 class AwtDialog : public AwtFrame {
42 public:
43
44 /* java.awt.Dialog field ids */
45 static jfieldID titleID;
46
47 /* boolean undecorated field for java.awt.Dialog */
48 static jfieldID undecoratedID;
49
50 AwtDialog();
51 virtual ~AwtDialog();
52
53 virtual void Dispose();
54
55 virtual LPCTSTR GetClassName();
56 virtual void FillClassInfo(WNDCLASSEX *lpwc);
57 virtual void SetResizable(BOOL isResizable);
58
59 void Show();
60
61 virtual void DoUpdateIcon();
62 virtual HICON GetEffectiveIcon(int iconType);
63
64 /* Create a new AwtDialog. This must be run on the main thread. */
65 static AwtDialog* Create(jobject peer, jobject hParent);
66 virtual MsgRouting WmShowModal();
67 virtual MsgRouting WmEndModal();
68 virtual MsgRouting WmStyleChanged(int wStyleType, LPSTYLESTRUCT lpss);
69 virtual MsgRouting WmSize(UINT type, int w, int h);
70 MsgRouting WmNcMouseDown(WPARAM hitTest, int x, int y, int button);
71 virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam);
72
73 /*
74 * The check is performed before the dialog is shown.
75 * The focused window can't be blocked at the time it's focused.
76 * Thus we don't have to perform any transitive (a blocker of a blocker) checks.
77 */
78 INLINE virtual BOOL IsFocusedWindowModalBlocker() {
79 return (AwtComponent::GetFocusedWindow() != NULL) && (GetModalBlocker(AwtComponent::GetFocusedWindow()) == GetHWnd());
80 }
81
82 // finds and activates some window after the modal dialog is hidden
83 static void ModalActivateNextWindow(HWND dialogHWnd,
84 jobject dialogTarget, jobject dialogPeer);
85
86 // some methods called on Tookit thread
87 static void _ShowModal(void *param);
88 static void _EndModal(void *param);
89 static void _SetIMMOption(void *param);
90
91 static BOOL IsModalExcluded(HWND hwnd);
92
93 static void CheckInstallModalHook();
94 static void CheckUninstallModalHook();
95
96 private:
97
98 void UpdateSystemMenu();
99
100 HWND m_modalWnd;
101
102 // checks if the given window can be activated after a modal dialog is hidden
103 inline static BOOL ModalCanBeActivated(HWND hwnd) {
104 return ::IsWindow(hwnd) &&
105 ::IsWindowVisible(hwnd) &&
106 ::IsWindowEnabled(hwnd) &&
107 !::IsWindow(AwtWindow::GetModalBlocker(hwnd));
108 }
109 /*
110 * Activates the given window
111 * If the window is an embedded frame, it is activated from Java code.
112 * See WEmbeddedFrame.activateEmbeddingTopLevel() for details.
113 */
114 static void ModalPerformActivation(HWND hWnd);
115
116 static void PopupBlockers(HWND blocker, BOOL isModalHook, HWND prevFGWindow, BOOL onTaskbar);
117 static void PopupBlocker(HWND blocker, HWND nextBlocker, BOOL isModalHook, HWND prevFGWindow, BOOL onTaskbar);
118
119 public:
120
121 // WH_CBT hook procedure used in modality, prevents modal
122 // blocked windows from being activated
123 static LRESULT CALLBACK ModalFilterProc(int code,
124 WPARAM wParam, LPARAM lParam);
125 // WM_MOUSE hook procedure used in modality, filters some
126 // mouse events for blocked windows and brings blocker
127 // dialog to front
128 static LRESULT CALLBACK MouseHookProc(int code,
129 WPARAM wParam, LPARAM lParam);
130 // WM_MOUSE hook procedure used in modality, similiar to
131 // MouseHookProc but installed on non-toolkit threads, for
132 // example on browser's thread when running in Java Plugin
133 static LRESULT CALLBACK MouseHookProc_NonTT(int code,
134 WPARAM wParam, LPARAM lParam);
135
136 static void AnimateModalBlocker(HWND window);
137 };
138
139 #endif /* AWT_DIALOG_H */