1 /* 2 * Copyright (c) 1996, 2010, 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_WINDOW_H 27 #define AWT_WINDOW_H 28 29 #include "awt_Canvas.h" 30 31 #include "java_awt_Window.h" 32 #include "sun_awt_windows_WWindowPeer.h" 33 34 // property name tagging windows disabled by modality 35 static LPCTSTR ModalBlockerProp = TEXT("SunAwtModalBlockerProp"); 36 static LPCTSTR ModalDialogPeerProp = TEXT("SunAwtModalDialogPeerProp"); 37 static LPCTSTR NativeDialogWndProcProp = TEXT("SunAwtNativeDialogWndProcProp"); 38 39 #ifndef WH_MOUSE_LL 40 #define WH_MOUSE_LL 14 41 #endif 42 43 class AwtFrame; 44 45 /************************************************************************ 46 * AwtWindow class 47 */ 48 49 class AwtWindow : public AwtCanvas { 50 public: 51 52 /* java.awt.Window field ids */ 53 static jfieldID warningStringID; 54 static jfieldID locationByPlatformID; 55 static jfieldID screenID; /* screen number passed over from WindowPeer */ 56 static jfieldID autoRequestFocusID; 57 static jfieldID securityWarningWidthID; 58 static jfieldID securityWarningHeightID; 59 60 // The coordinates at the peer. 61 static jfieldID sysXID; 62 static jfieldID sysYID; 63 static jfieldID sysWID; 64 static jfieldID sysHID; 65 66 static jfieldID windowTypeID; 67 68 static jmethodID getWarningStringMID; 69 static jmethodID calculateSecurityWarningPositionMID; 70 static jmethodID windowTypeNameMID; 71 72 AwtWindow(); 73 virtual ~AwtWindow(); 74 75 virtual void Dispose(); 76 77 virtual LPCTSTR GetClassName(); 78 virtual void FillClassInfo(WNDCLASSEX *lpwc); 79 80 static AwtWindow* Create(jobject self, jobject parent); 81 82 // Returns TRUE if this Window is equal to or one of owners of wnd 83 BOOL IsOneOfOwnersOf(AwtWindow * wnd); 84 85 /* Update the insets for this Window (container), its peer & 86 * optional other 87 */ 88 BOOL UpdateInsets(jobject insets = 0); 89 BOOL HasValidRect(); 90 91 static BOOL CALLBACK UpdateOwnedIconCallback(HWND hwnd, LPARAM param); 92 93 INLINE AwtFrame * GetOwningFrameOrDialog() { return m_owningFrameDialog; } 94 95 HWND GetTopLevelHWnd(); 96 97 /* Subtract inset values from a window origin. */ 98 INLINE void SubtractInsetPoint(int& x, int& y) { 99 x -= m_insets.left; 100 y -= m_insets.top; 101 } 102 103 virtual void GetInsets(RECT* rect) { 104 VERIFY(::CopyRect(rect, &m_insets)); 105 } 106 107 /* to make embedded frames easier */ 108 virtual BOOL IsEmbeddedFrame() { return FALSE;} 109 110 /* We can hold children */ 111 virtual BOOL IsContainer() { return TRUE;} 112 113 virtual BOOL IsUndecorated() { return TRUE; } 114 115 INLINE virtual BOOL IsSimpleWindow() { return TRUE; } 116 117 INLINE BOOL IsRetainingHierarchyZOrder() { return m_isRetainingHierarchyZOrder; } 118 119 /* WARNING: don't invoke on Toolkit thread! */ 120 INLINE BOOL IsAutoRequestFocus() { 121 JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2); 122 return env->GetBooleanField(GetTarget(env), AwtWindow::autoRequestFocusID); 123 } 124 125 INLINE virtual BOOL IsFocusedWindowModalBlocker() { 126 return FALSE; 127 } 128 129 virtual void Invalidate(RECT* r); 130 virtual void Show(); 131 virtual void SetResizable(BOOL isResizable); 132 BOOL IsResizable(); 133 virtual void RecalcNonClient(); 134 virtual void RedrawNonClient(); 135 virtual int GetScreenImOn(); 136 virtual void CheckIfOnNewScreen(); 137 virtual void Grab(); 138 virtual void Ungrab(); 139 virtual void Ungrab(BOOL doPost); 140 virtual void SetIconData(JNIEnv* env, jintArray iconData, jint w, jint h, 141 jintArray smallIconData, jint smw, jint smh); 142 virtual void DoUpdateIcon(); 143 INLINE HICON GetHIcon() {return m_hIcon;}; 144 INLINE HICON GetHIconSm() {return m_hIconSm;}; 145 INLINE BOOL IsIconInherited() {return m_iconInherited;}; 146 147 /* Post events to the EventQueue */ 148 void SendComponentEvent(jint eventId); 149 void SendWindowEvent(jint id, HWND opposite = NULL, 150 jint oldState = 0, jint newState = 0); 151 152 BOOL IsFocusableWindow(); 153 154 /* some helper methods about blocking windows by modal dialogs */ 155 INLINE static HWND GetModalBlocker(HWND window) { 156 return reinterpret_cast<HWND>(::GetProp(window, ModalBlockerProp)); 157 } 158 static void SetModalBlocker(HWND window, HWND blocker); 159 static void SetAndActivateModalBlocker(HWND window, HWND blocker); 160 161 static HWND GetTopmostModalBlocker(HWND window); 162 163 /* 164 * Windows message handler functions 165 */ 166 virtual MsgRouting WmActivate(UINT nState, BOOL fMinimized, HWND opposite); 167 virtual MsgRouting WmCreate(); 168 virtual MsgRouting WmClose(); 169 virtual MsgRouting WmDestroy(); 170 virtual MsgRouting WmShowWindow(BOOL show, UINT status); 171 virtual MsgRouting WmGetMinMaxInfo(LPMINMAXINFO lpmmi); 172 virtual MsgRouting WmMove(int x, int y); 173 virtual MsgRouting WmSize(UINT type, int w, int h); 174 virtual MsgRouting WmSizing(); 175 virtual MsgRouting WmPaint(HDC hDC); 176 virtual MsgRouting WmSettingChange(UINT wFlag, LPCTSTR pszSection); 177 virtual MsgRouting WmNcCalcSize(BOOL fCalcValidRects, 178 LPNCCALCSIZE_PARAMS lpncsp, LRESULT& retVal); 179 virtual MsgRouting WmNcHitTest(UINT x, UINT y, LRESULT& retVal); 180 virtual MsgRouting WmNcMouseDown(WPARAM hitTest, int x, int y, int button); 181 virtual MsgRouting WmGetIcon(WPARAM iconType, LRESULT& retVal); 182 virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); 183 virtual MsgRouting WmWindowPosChanging(LPARAM windowPos); 184 virtual MsgRouting WmWindowPosChanged(LPARAM windowPos); 185 virtual MsgRouting WmTimer(UINT_PTR timerID); 186 187 virtual MsgRouting HandleEvent(MSG *msg, BOOL synthetic); 188 virtual void WindowResized(); 189 190 static jboolean _RequestWindowFocus(void *param); 191 192 virtual BOOL AwtSetActiveWindow(UINT hittest = HTCLIENT); 193 194 // Execute on Toolkit only. 195 INLINE static LRESULT SynthesizeWmActivate(BOOL doActivate, HWND targetHWnd, HWND oppositeHWnd) { 196 if (doActivate && 197 (!::IsWindowVisible(targetHWnd) || ::IsIconic(::GetAncestor(targetHWnd, GA_ROOT)))) 198 { 199 // The activation is rejected if either: 200 // - The toplevel is not visible 201 // - The toplevel (or its embedder) is minimised 202 return 1; 203 } 204 return ::SendMessage(targetHWnd, WM_ACTIVATE, 205 MAKEWPARAM(doActivate ? WA_ACTIVE : WA_INACTIVE, FALSE), 206 (LPARAM) oppositeHWnd); 207 } 208 209 void moveToDefaultLocation(); /* moves Window to X,Y specified by Window Manger */ 210 211 void UpdateWindow(JNIEnv* env, jintArray data, int width, int height, 212 HBITMAP hNewBitmap = NULL); 213 214 INLINE virtual BOOL IsTopLevel() { return TRUE; } 215 static AwtWindow * GetGrabbedWindow() { return m_grabbedWindow; } 216 217 static void FlashWindowEx(HWND hWnd, UINT count, DWORD timeout, DWORD flags); 218 219 // some methods invoked on Toolkit thread 220 static void _ToFront(void *param); 221 static void _ToBack(void *param); 222 static void _Grab(void *param); 223 static void _Ungrab(void *param); 224 static void _SetAlwaysOnTop(void *param); 225 static void _SetTitle(void *param); 226 static void _SetResizable(void *param); 227 static void _UpdateInsets(void *param); 228 static void _ReshapeFrame(void *param); 229 static void _SetIconImagesData(void * param); 230 static void _SetMinSize(void* param); 231 static jint _GetScreenImOn(void *param); 232 static void _SetFocusableWindow(void *param); 233 static void _SetModalExcludedNativeProp(void *param); 234 static void _ModalDisable(void *param); 235 static void _ModalEnable(void *param); 236 static void _SetOpacity(void* param); 237 static void _SetOpaque(void* param); 238 static void _UpdateWindow(void* param); 239 static void _RepositionSecurityWarning(void* param); 240 static void _SetFullScreenExclusiveModeState(void* param); 241 242 inline static BOOL IsResizing() { 243 return sm_resizing; 244 } 245 246 virtual void CreateHWnd(JNIEnv *env, LPCWSTR title, 247 DWORD windowStyle, DWORD windowExStyle, 248 int x, int y, int w, int h, 249 HWND hWndParent, HMENU hMenu, 250 COLORREF colorForeground, COLORREF colorBackground, 251 jobject peer); 252 virtual void DestroyHWnd(); 253 254 static void FocusedWindowChanged(HWND from, HWND to); 255 256 private: 257 static int ms_instanceCounter; 258 static HHOOK ms_hCBTFilter; 259 static LRESULT CALLBACK CBTFilter(int nCode, WPARAM wParam, LPARAM lParam); 260 static BOOL sm_resizing; /* in the middle of a resizing operation */ 261 262 RECT m_insets; /* a cache of the insets being used */ 263 RECT m_old_insets; /* help determine if insets change */ 264 POINT m_sizePt; /* the last value of WM_SIZE */ 265 RECT m_warningRect; /* The window's warning banner area, if any. */ 266 AwtFrame *m_owningFrameDialog; /* The nearest Frame/Dialog which owns us */ 267 BOOL m_isFocusableWindow; /* a cache of Window.isFocusableWindow() return value */ 268 POINT m_minSize; /* Minimum size of the window for WM_GETMINMAXINFO message */ 269 BOOL m_grabbed; // Whether the current window is grabbed 270 BOOL m_isRetainingHierarchyZOrder; // Is this a window that shouldn't change z-order of any window 271 // from its hierarchy when shown. Currently applied to instances of 272 // javax/swing/Popup$HeavyWeightWindow class. 273 274 // SetTranslucency() is the setter for the following two fields 275 BYTE m_opacity; // The opacity level. == 0xff by default (when opacity mode is disabled) 276 BOOL m_opaque; // Whether the window uses the perpixel translucency (false), or not (true). 277 278 inline BYTE getOpacity() { 279 return m_opacity; 280 } 281 282 inline BOOL isOpaque() { 283 return m_opaque; 284 } 285 286 CRITICAL_SECTION contentBitmapCS; 287 HBITMAP hContentBitmap; 288 UINT contentWidth; 289 UINT contentHeight; 290 291 void SetTranslucency(BYTE opacity, BOOL opaque, BOOL setValues = TRUE, 292 BOOL useDefaultForOldValues = FALSE); 293 void UpdateWindow(int width, int height, HBITMAP hBitmap); 294 void UpdateWindowImpl(int width, int height, HBITMAP hBitmap); 295 void RedrawWindow(); 296 void DeleteContentBitmap(); 297 298 static UINT untrustedWindowsCounter; 299 300 WCHAR * warningString; 301 302 // The warning icon 303 HWND warningWindow; 304 // The tooltip that appears when hovering the icon 305 HWND securityTooltipWindow; 306 307 UINT warningWindowWidth; 308 UINT warningWindowHeight; 309 void InitSecurityWarningSize(JNIEnv *env); 310 HICON GetSecurityWarningIcon(); 311 312 void CreateWarningWindow(JNIEnv *env); 313 void DestroyWarningWindow(); 314 static LPCTSTR GetWarningWindowClassName(); 315 void FillWarningWindowClassInfo(WNDCLASS *lpwc); 316 void RegisterWarningWindowClass(); 317 void UnregisterWarningWindowClass(); 318 static LRESULT CALLBACK WarningWindowProc( 319 HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam); 320 321 static void PaintWarningWindow(HWND warningWindow); 322 static void PaintWarningWindow(HWND warningWindow, HDC hdc); 323 void RepaintWarningWindow(); 324 void CalculateWarningWindowBounds(JNIEnv *env, LPRECT rect); 325 326 void AnimateSecurityWarning(bool enable); 327 UINT securityWarningAnimationStage; 328 329 enum AnimationKind { 330 akNone, akShow, akPreHide, akHide 331 }; 332 333 AnimationKind securityAnimationKind; 334 335 void StartSecurityAnimation(AnimationKind kind); 336 void StopSecurityAnimation(); 337 338 void RepositionSecurityWarning(JNIEnv *env); 339 340 static void SetLayered(HWND window, bool layered); 341 static bool IsLayered(HWND window); 342 343 BOOL fullScreenExclusiveModeState; 344 inline void setFullScreenExclusiveModeState(BOOL isEntered) { 345 fullScreenExclusiveModeState = isEntered; 346 UpdateSecurityWarningVisibility(); 347 } 348 inline BOOL isFullScreenExclusiveMode() { 349 return fullScreenExclusiveModeState; 350 } 351 352 353 public: 354 void UpdateSecurityWarningVisibility(); 355 static bool IsWarningWindow(HWND hWnd); 356 357 protected: 358 BOOL m_isResizable; 359 static AwtWindow* m_grabbedWindow; // Current grabbing window 360 HICON m_hIcon; /* Icon for this window. It can be set explicitely or inherited from the owner */ 361 HICON m_hIconSm; /* Small icon for this window. It can be set explicitely or inherited from the owner */ 362 BOOL m_iconInherited; /* TRUE if icon is inherited from the owner */ 363 BOOL m_filterFocusAndActivation; /* Used in the WH_CBT hook */ 364 365 inline BOOL IsUntrusted() { 366 return warningString != NULL; 367 } 368 369 UINT currentWmSizeState; 370 371 void EnableTranslucency(BOOL enable); 372 373 // Native representation of the java.awt.Window.Type enum 374 enum Type { 375 NORMAL, UTILITY, POPUP 376 }; 377 378 inline Type GetType() { return m_windowType; } 379 380 private: 381 int m_screenNum; 382 383 void InitOwner(AwtWindow *owner); 384 385 Type m_windowType; 386 void InitType(JNIEnv *env, jobject peer); 387 388 // Tweak the style according to the type of the window 389 void TweakStyle(DWORD & style, DWORD & exStyle); 390 391 // Set in _SetAlwaysOnTop() 392 bool m_alwaysOnTop; 393 public: 394 inline bool IsAlwaysOnTop() { return m_alwaysOnTop; } 395 }; 396 397 #endif /* AWT_WINDOW_H */