1 /* 2 * Copyright (c) 1996, 2016, 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 INLINE virtual BOOL IsLightweightFrame() {return FALSE;} 147 148 /* Post events to the EventQueue */ 149 void SendComponentEvent(jint eventId); 150 void SendWindowEvent(jint id, HWND opposite = NULL, 151 jint oldState = 0, jint newState = 0); 152 153 BOOL IsFocusableWindow(); 154 155 /* some helper methods about blocking windows by modal dialogs */ 156 INLINE static HWND GetModalBlocker(HWND window) { 157 return reinterpret_cast<HWND>(::GetProp(window, ModalBlockerProp)); 158 } 159 static void SetModalBlocker(HWND window, HWND blocker); 160 static void SetAndActivateModalBlocker(HWND window, HWND blocker); 161 162 static HWND GetTopmostModalBlocker(HWND window); 163 164 /* 165 * Windows message handler functions 166 */ 167 virtual MsgRouting WmActivate(UINT nState, BOOL fMinimized, HWND opposite); 168 virtual MsgRouting WmCreate(); 169 virtual MsgRouting WmClose(); 170 virtual MsgRouting WmDestroy(); 171 virtual MsgRouting WmShowWindow(BOOL show, UINT status); 172 virtual MsgRouting WmGetMinMaxInfo(LPMINMAXINFO lpmmi); 173 virtual MsgRouting WmMove(int x, int y); 174 virtual MsgRouting WmSize(UINT type, int w, int h); 175 virtual MsgRouting WmSizing(); 176 virtual MsgRouting WmEnterSizeMove(); 177 virtual MsgRouting WmExitSizeMove(); 178 virtual MsgRouting WmPaint(HDC hDC); 179 virtual MsgRouting WmSettingChange(UINT wFlag, LPCTSTR pszSection); 180 virtual MsgRouting WmNcCalcSize(BOOL fCalcValidRects, 181 LPNCCALCSIZE_PARAMS lpncsp, LRESULT& retVal); 182 virtual MsgRouting WmNcHitTest(UINT x, UINT y, LRESULT& retVal); 183 virtual MsgRouting WmNcMouseDown(WPARAM hitTest, int x, int y, int button); 184 virtual MsgRouting WmGetIcon(WPARAM iconType, LRESULT& retVal); 185 virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); 186 virtual MsgRouting WmWindowPosChanging(LPARAM windowPos); 187 virtual MsgRouting WmWindowPosChanged(LPARAM windowPos); 188 virtual MsgRouting WmTimer(UINT_PTR timerID); 189 190 virtual MsgRouting HandleEvent(MSG *msg, BOOL synthetic); 191 virtual void WindowResized(); 192 193 static jboolean _RequestWindowFocus(void *param); 194 195 virtual BOOL AwtSetActiveWindow(BOOL isMouseEventCause = FALSE, UINT hittest = HTCLIENT); 196 197 // Execute on Toolkit only. 198 INLINE static LRESULT SynthesizeWmActivate(BOOL doActivate, HWND targetHWnd, HWND oppositeHWnd) { 199 AwtWindow *win = static_cast<AwtWindow*>(AwtComponent::GetComponent(targetHWnd)); 200 if (doActivate && 201 (!::IsWindowVisible(targetHWnd) || ::IsIconic(::GetAncestor(targetHWnd, GA_ROOT))) && 202 (win == NULL || !win->IsLightweightFrame())) 203 { 204 // The activation is rejected if either: 205 // - The toplevel is not visible 206 // - The toplevel (or its embedder) is minimised 207 return 1; 208 } 209 return ::SendMessage(targetHWnd, WM_ACTIVATE, 210 MAKEWPARAM(doActivate ? WA_ACTIVE : WA_INACTIVE, FALSE), 211 (LPARAM) oppositeHWnd); 212 } 213 214 void moveToDefaultLocation(); /* moves Window to X,Y specified by Window Manger */ 215 216 void UpdateWindow(JNIEnv* env, jintArray data, int width, int height, 217 HBITMAP hNewBitmap = NULL); 218 219 INLINE virtual BOOL IsTopLevel() { return TRUE; } 220 static AwtWindow * GetGrabbedWindow() { return m_grabbedWindow; } 221 222 static void FlashWindowEx(HWND hWnd, UINT count, DWORD timeout, DWORD flags); 223 224 // some methods invoked on Toolkit thread 225 static void _ToFront(void *param); 226 static void _ToBack(void *param); 227 static void _Grab(void *param); 228 static void _Ungrab(void *param); 229 static void _SetAlwaysOnTop(void *param); 230 static void _SetTitle(void *param); 231 static void _SetResizable(void *param); 232 static void _UpdateInsets(void *param); 233 static void _ReshapeFrame(void *param); 234 static void _SetIconImagesData(void * param); 235 static void _SetMinSize(void* param); 236 static jint _GetScreenImOn(void *param); 237 static void _SetFocusableWindow(void *param); 238 static void _SetModalExcludedNativeProp(void *param); 239 static void _ModalDisable(void *param); 240 static void _ModalEnable(void *param); 241 static void _SetOpacity(void* param); 242 static void _SetOpaque(void* param); 243 static void _UpdateWindow(void* param); 244 static void _RepositionSecurityWarning(void* param); 245 static void _SetFullScreenExclusiveModeState(void* param); 246 static void _GetNativeWindowSize(void* param); 247 static void _WindowDPIChange(void* param); 248 249 inline static BOOL IsResizing() { 250 return sm_resizing; 251 } 252 253 virtual void CreateHWnd(JNIEnv *env, LPCWSTR title, 254 DWORD windowStyle, DWORD windowExStyle, 255 int x, int y, int w, int h, 256 HWND hWndParent, HMENU hMenu, 257 COLORREF colorForeground, COLORREF colorBackground, 258 jobject peer); 259 virtual void DestroyHWnd(); 260 261 static void FocusedWindowChanged(HWND from, HWND to); 262 263 private: 264 static int ms_instanceCounter; 265 static HHOOK ms_hCBTFilter; 266 static LRESULT CALLBACK CBTFilter(int nCode, WPARAM wParam, LPARAM lParam); 267 static BOOL sm_resizing; /* in the middle of a resizing operation */ 268 269 RECT m_insets; /* a cache of the insets being used */ 270 RECT m_old_insets; /* help determine if insets change */ 271 POINT m_sizePt; /* the last value of WM_SIZE */ 272 RECT m_warningRect; /* The window's warning banner area, if any. */ 273 AwtFrame *m_owningFrameDialog; /* The nearest Frame/Dialog which owns us */ 274 BOOL m_isFocusableWindow; /* a cache of Window.isFocusableWindow() return value */ 275 POINT m_minSize; /* Minimum size of the window for WM_GETMINMAXINFO message */ 276 BOOL m_grabbed; // Whether the current window is grabbed 277 BOOL m_isRetainingHierarchyZOrder; // Is this a window that shouldn't change z-order of any window 278 // from its hierarchy when shown. Currently applied to instances of 279 // javax/swing/Popup$HeavyWeightWindow class. 280 281 // SetTranslucency() is the setter for the following two fields 282 BYTE m_opacity; // The opacity level. == 0xff by default (when opacity mode is disabled) 283 BOOL m_opaque; // Whether the window uses the perpixel translucency (false), or not (true). 284 285 inline BYTE getOpacity() { 286 return m_opacity; 287 } 288 289 inline BOOL isOpaque() { 290 return m_opaque; 291 } 292 293 CRITICAL_SECTION contentBitmapCS; 294 HBITMAP hContentBitmap; 295 UINT contentWidth; 296 UINT contentHeight; 297 298 void SetTranslucency(BYTE opacity, BOOL opaque, BOOL setValues = TRUE, 299 BOOL useDefaultForOldValues = FALSE); 300 void UpdateWindow(int width, int height, HBITMAP hBitmap); 301 void UpdateWindowImpl(int width, int height, HBITMAP hBitmap); 302 void RedrawWindow(); 303 void DeleteContentBitmap(); 304 305 static UINT untrustedWindowsCounter; 306 307 WCHAR * warningString; 308 309 // The warning icon 310 HWND warningWindow; 311 // The tooltip that appears when hovering the icon 312 HWND securityTooltipWindow; 313 314 UINT warningWindowWidth; 315 UINT warningWindowHeight; 316 void InitSecurityWarningSize(JNIEnv *env); 317 HICON GetSecurityWarningIcon(); 318 319 void CreateWarningWindow(JNIEnv *env); 320 void DestroyWarningWindow(); 321 static LPCTSTR GetWarningWindowClassName(); 322 void FillWarningWindowClassInfo(WNDCLASS *lpwc); 323 void RegisterWarningWindowClass(); 324 void UnregisterWarningWindowClass(); 325 static LRESULT CALLBACK WarningWindowProc( 326 HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam); 327 328 static void PaintWarningWindow(HWND warningWindow); 329 static void PaintWarningWindow(HWND warningWindow, HDC hdc); 330 void RepaintWarningWindow(); 331 void CalculateWarningWindowBounds(JNIEnv *env, LPRECT rect); 332 333 void AnimateSecurityWarning(bool enable); 334 UINT securityWarningAnimationStage; 335 336 enum AnimationKind { 337 akNone, akShow, akPreHide, akHide 338 }; 339 340 AnimationKind securityAnimationKind; 341 342 void StartSecurityAnimation(AnimationKind kind); 343 void StopSecurityAnimation(); 344 345 void RepositionSecurityWarning(JNIEnv *env); 346 347 static void SetLayered(HWND window, bool layered); 348 static bool IsLayered(HWND window); 349 350 BOOL fullScreenExclusiveModeState; 351 inline void setFullScreenExclusiveModeState(BOOL isEntered) { 352 fullScreenExclusiveModeState = isEntered; 353 UpdateSecurityWarningVisibility(); 354 } 355 inline BOOL isFullScreenExclusiveMode() { 356 return fullScreenExclusiveModeState; 357 } 358 359 360 public: 361 void UpdateSecurityWarningVisibility(); 362 static bool IsWarningWindow(HWND hWnd); 363 364 protected: 365 BOOL m_isResizable; 366 static AwtWindow* m_grabbedWindow; // Current grabbing window 367 HICON m_hIcon; /* Icon for this window. It can be set explicitely or inherited from the owner */ 368 HICON m_hIconSm; /* Small icon for this window. It can be set explicitely or inherited from the owner */ 369 BOOL m_iconInherited; /* TRUE if icon is inherited from the owner */ 370 BOOL m_filterFocusAndActivation; /* Used in the WH_CBT hook */ 371 372 inline BOOL IsUntrusted() { 373 return warningString != NULL; 374 } 375 376 UINT currentWmSizeState; 377 378 void EnableTranslucency(BOOL enable); 379 380 // Native representation of the java.awt.Window.Type enum 381 enum Type { 382 NORMAL, UTILITY, POPUP 383 }; 384 385 inline Type GetType() { return m_windowType; } 386 387 private: 388 int m_screenNum; 389 390 typedef struct { 391 jint screen; 392 jfloat scaleX; 393 jfloat scaleY; 394 } ScaleRec; 395 396 BOOL m_winSizeMove; 397 ScaleRec prevScaleRec; 398 399 void InitOwner(AwtWindow *owner); 400 void CheckWindowDPIChange(); 401 void WindowDPIChange(int prevScreen, float prevScaleX, float prevScaleY, 402 int newScreen, float scaleX, float scaleY); 403 404 Type m_windowType; 405 void InitType(JNIEnv *env, jobject peer); 406 407 // Tweak the style according to the type of the window 408 void TweakStyle(DWORD & style, DWORD & exStyle); 409 410 // Set in _SetAlwaysOnTop() 411 bool m_alwaysOnTop; 412 public: 413 inline bool IsAlwaysOnTop() { return m_alwaysOnTop; } 414 }; 415 416 HICON CreateIconFromRaster(JNIEnv* env, jintArray iconRaster, jint w, jint h); 417 418 #endif /* AWT_WINDOW_H */