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awt_Toolkit.cpp
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awt_Toolkit.cpp
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/*
* Copyright (c) 1996, 2022, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
#define _JNI_IMPLEMENTATION_
#include "awt.h"
#include <signal.h>
#include <windowsx.h>
#include <process.h>
#include <shellapi.h>
#include <shlwapi.h>
#include "awt_DrawingSurface.h"
#include "awt_AWTEvent.h"
#include "awt_Component.h"
#include "awt_Canvas.h"
#include "awt_Clipboard.h"
#include "awt_Frame.h"
#include "awt_Dialog.h"
#include "awt_Font.h"
#include "awt_Cursor.h"
#include "awt_InputEvent.h"
#include "awt_KeyEvent.h"
#include "awt_List.h"
#include "awt_Palette.h"
#include "awt_PopupMenu.h"
#include "awt_Toolkit.h"
#include "awt_DesktopProperties.h"
#include "awt_FileDialog.h"
#include "CmdIDList.h"
#include "awt_new.h"
#include "debug_trace.h"
#include "debug_mem.h"
#include "ComCtl32Util.h"
#include "DllUtil.h"
#include "D3DPipelineManager.h"
#include <awt_DnDDT.h>
#include <awt_DnDDS.h>
#include <java_awt_Toolkit.h>
#include <java_awt_event_InputMethodEvent.h>
extern void initScreens(JNIEnv *env);
extern "C" void awt_dnd_initialize();
extern "C" void awt_dnd_uninitialize();
extern "C" void awt_clipboard_uninitialize(JNIEnv *env);
extern "C" BOOL g_bUserHasChangedInputLang;
extern CriticalSection windowMoveLock;
extern BOOL windowMoveLockHeld;
// Needed by JAWT: see awt_DrawingSurface.cpp.
extern jclass jawtVImgClass;
extern jclass jawtVSMgrClass;
extern jclass jawtComponentClass;
extern jfieldID jawtPDataID;
extern jfieldID jawtSDataID;
extern jfieldID jawtSMgrID;
jobject reasonUnspecified;
jobject reasonConsole;
jobject reasonRemote;
jobject reasonLock;
extern jobject GetStaticObject(JNIEnv *env, jclass wfClass, const char *fieldName,
const char *signature);
extern BOOL isSuddenTerminationEnabled;
extern void DWMResetCompositionEnabled();
/************************************************************************
* Utilities
*/
/* Initialize the Java VM instance variable when the library is
first loaded */
JavaVM *jvm = NULL;
JNIEXPORT jint JNICALL
DEF_JNI_OnLoad(JavaVM *vm, void *reserved)
{
TRY;
jvm = vm;
return JNI_VERSION_1_2;
CATCH_BAD_ALLOC_RET(0);
}
extern "C" JNIEXPORT jboolean JNICALL AWTIsHeadless() {
static JNIEnv *env = NULL;
static jboolean isHeadless;
jmethodID headlessFn;
jclass graphicsEnvClass;
if (env == NULL) {
env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
graphicsEnvClass = env->FindClass(
"java/awt/GraphicsEnvironment");
if (graphicsEnvClass == NULL) {
return JNI_TRUE;
}
headlessFn = env->GetStaticMethodID(
graphicsEnvClass, "isHeadless", "()Z");
if (headlessFn == NULL) {
return JNI_TRUE;
}
isHeadless = env->CallStaticBooleanMethod(graphicsEnvClass,
headlessFn);
}
return isHeadless;
}
#define IDT_AWT_MOUSECHECK 0x101
static LPCTSTR szAwtToolkitClassName = TEXT("SunAwtToolkit");
static const int MOUSE_BUTTONS_WINDOWS_SUPPORTED = 5; //three standard buttons + XBUTTON1 + XBUTTON2.
UINT AwtToolkit::GetMouseKeyState()
{
static BOOL mbSwapped = ::GetSystemMetrics(SM_SWAPBUTTON);
UINT mouseKeyState = 0;
if (HIBYTE(::GetKeyState(VK_CONTROL)))
mouseKeyState |= MK_CONTROL;
if (HIBYTE(::GetKeyState(VK_SHIFT)))
mouseKeyState |= MK_SHIFT;
if (HIBYTE(::GetKeyState(VK_LBUTTON)))
mouseKeyState |= (mbSwapped ? MK_RBUTTON : MK_LBUTTON);
if (HIBYTE(::GetKeyState(VK_RBUTTON)))
mouseKeyState |= (mbSwapped ? MK_LBUTTON : MK_RBUTTON);
if (HIBYTE(::GetKeyState(VK_MBUTTON)))
mouseKeyState |= MK_MBUTTON;
return mouseKeyState;
}
//
// Normal ::GetKeyboardState call only works if current thread has
// a message pump, so provide a way for other threads to get
// the keyboard state
//
void AwtToolkit::GetKeyboardState(PBYTE keyboardState)
{
CriticalSection::Lock l(AwtToolkit::GetInstance().m_lockKB);
DASSERT(!IsBadWritePtr(keyboardState, KB_STATE_SIZE));
memcpy(keyboardState, AwtToolkit::GetInstance().m_lastKeyboardState,
KB_STATE_SIZE);
}
void AwtToolkit::SetBusy(BOOL busy) {
JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
static jclass awtAutoShutdownClass = NULL;
static jmethodID notifyBusyMethodID = NULL;
static jmethodID notifyFreeMethodID = NULL;
if (awtAutoShutdownClass == NULL) {
jclass awtAutoShutdownClassLocal = env->FindClass("sun/awt/AWTAutoShutdown");
DASSERT(awtAutoShutdownClassLocal != NULL);
if (!awtAutoShutdownClassLocal) throw std::bad_alloc();
awtAutoShutdownClass = (jclass)env->NewGlobalRef(awtAutoShutdownClassLocal);
env->DeleteLocalRef(awtAutoShutdownClassLocal);
if (!awtAutoShutdownClass) throw std::bad_alloc();
notifyBusyMethodID = env->GetStaticMethodID(awtAutoShutdownClass,
"notifyToolkitThreadBusy", "()V");
DASSERT(notifyBusyMethodID != NULL);
if (!notifyBusyMethodID) throw std::bad_alloc();
notifyFreeMethodID = env->GetStaticMethodID(awtAutoShutdownClass,
"notifyToolkitThreadFree", "()V");
DASSERT(notifyFreeMethodID != NULL);
if (!notifyFreeMethodID) throw std::bad_alloc();
} /* awtAutoShutdownClass == NULL*/
if (busy) {
env->CallStaticVoidMethod(awtAutoShutdownClass,
notifyBusyMethodID);
} else {
env->CallStaticVoidMethod(awtAutoShutdownClass,
notifyFreeMethodID);
}
if (!JNU_IsNull(env, safe_ExceptionOccurred(env))) {
env->ExceptionDescribe();
env->ExceptionClear();
}
}
BOOL AwtToolkit::activateKeyboardLayout(HKL hkl) {
// This call should succeed in case of one of the following:
// 1. Win 9x
// 2. NT with that HKL already loaded
HKL prev = ::ActivateKeyboardLayout(hkl, 0);
// If the above call fails, try loading the layout in case of NT
if (!prev) {
// create input locale string, e.g., "00000409", from hkl.
TCHAR inputLocale[9];
TCHAR buf[9];
_tcscpy_s(inputLocale, 9, TEXT("00000000"));
// 64-bit: ::LoadKeyboardLayout() is such a weird API - a string of
// the hex value you want?! Here we're converting our HKL value to
// a string. Hopefully there is no 64-bit trouble.
_i64tot(reinterpret_cast<INT_PTR>(hkl), buf, 16);
size_t len = _tcslen(buf);
memcpy(&inputLocale[8-len], buf, len);
// load and activate the keyboard layout
hkl = ::LoadKeyboardLayout(inputLocale, 0);
if (hkl != 0) {
prev = ::ActivateKeyboardLayout(hkl, 0);
}
}
return (prev != 0);
}
/************************************************************************
* Exported functions
*/
extern "C" BOOL APIENTRY DllMain(HANDLE hInstance, DWORD ul_reason_for_call,
LPVOID)
{
// Don't use the TRY and CATCH_BAD_ALLOC_RET macros if we're detaching
// the library. Doing so causes awt.dll to call back into the VM during
// shutdown. This crashes the HotSpot VM.
switch (ul_reason_for_call) {
case DLL_PROCESS_ATTACH:
TRY;
AwtToolkit::GetInstance().SetModuleHandle((HMODULE)hInstance);
CATCH_BAD_ALLOC_RET(FALSE);
break;
case DLL_PROCESS_DETACH:
#ifdef DEBUG
DTrace_DisableMutex();
DMem_DisableMutex();
#endif // DEBUG
break;
}
return TRUE;
}
/************************************************************************
* AwtToolkit fields
*/
AwtToolkit AwtToolkit::theInstance;
/* ids for WToolkit fields accessed from native code */
jmethodID AwtToolkit::windowsSettingChangeMID;
jmethodID AwtToolkit::displayChangeMID;
jmethodID AwtToolkit::userSessionMID;
jmethodID AwtToolkit::systemSleepMID;
/* ids for Toolkit methods */
jmethodID AwtToolkit::getDefaultToolkitMID;
jmethodID AwtToolkit::getFontMetricsMID;
jmethodID AwtToolkit::insetsMID;
/************************************************************************
* AwtToolkit methods
*/
AwtToolkit::AwtToolkit() {
m_localPump = FALSE;
m_mainThreadId = 0;
m_toolkitHWnd = NULL;
m_inputMethodHWnd = NULL;
m_verbose = FALSE;
m_isActive = TRUE;
m_isDisposed = FALSE;
m_vmSignalled = FALSE;
m_isDynamicLayoutSet = FALSE;
m_areExtraMouseButtonsEnabled = TRUE;
m_isWin8OrLater = FALSE;
m_touchKbrdAutoShowIsEnabled = FALSE;
m_touchKbrdExeFilePath = NULL;
m_pRegisterTouchWindow = NULL;
m_pGetTouchInputInfo = NULL;
m_pCloseTouchInputHandle = NULL;
m_verifyComponents = FALSE;
m_breakOnError = FALSE;
m_breakMessageLoop = FALSE;
m_messageLoopResult = 0;
m_lastMouseOver = NULL;
m_mouseDown = FALSE;
m_hGetMessageHook = 0;
m_hMouseLLHook = 0;
m_lastWindowUnderMouse = NULL;
m_timer = 0;
m_cmdIDs = new AwtCmdIDList();
m_pModalDialog = NULL;
m_peer = NULL;
m_dllHandle = NULL;
m_displayChanged = FALSE;
m_embedderProcessID = 0;
// XXX: keyboard mapping should really be moved out of AwtComponent
AwtComponent::InitDynamicKeyMapTable();
// initialize kb state array
::GetKeyboardState(m_lastKeyboardState);
m_waitEvent = ::CreateEvent(NULL, FALSE, FALSE, NULL);
m_inputMethodWaitEvent = ::CreateEvent(NULL, FALSE, FALSE, NULL);
isDnDSourceActive = FALSE;
isDnDTargetActive = FALSE;
eventNumber = 0;
}
AwtToolkit::~AwtToolkit() {
/*
* The code has been moved to AwtToolkit::Dispose() method.
*/
}
HWND AwtToolkit::CreateToolkitWnd(LPCTSTR name)
{
HWND hwnd = CreateWindow(
szAwtToolkitClassName,
(LPCTSTR)name, /* window name */
WS_DISABLED, /* window style */
-1, -1, /* position of window */
0, 0, /* width and height */
NULL, NULL, /* hWndParent and hWndMenu */
GetModuleHandle(),
NULL); /* lpParam */
DASSERT(hwnd != NULL);
return hwnd;
}
void AwtToolkit::InitTouchKeyboardExeFilePath() {
enum RegistryView { WOW64_32BIT, WOW64_64BIT };
const TCHAR tabTipCoKeyName[] = _T("SOFTWARE\\Classes\\CLSID\\")
_T("{054AAE20-4BEA-4347-8A35-64A533254A9D}\\LocalServer32");
HKEY hTabTipCoKey = NULL;
RegistryView regViewWithTabTipCoKey = WOW64_32BIT;
if (::RegOpenKeyEx(HKEY_LOCAL_MACHINE, tabTipCoKeyName, 0,
KEY_READ | KEY_WOW64_32KEY, &hTabTipCoKey) != ERROR_SUCCESS) {
if (::RegOpenKeyEx(HKEY_LOCAL_MACHINE, tabTipCoKeyName, 0,
KEY_READ | KEY_WOW64_64KEY, &hTabTipCoKey) != ERROR_SUCCESS) {
return;
} else {
regViewWithTabTipCoKey = WOW64_64BIT;
}
}
DWORD keyValType = 0;
DWORD bytesCopied = 0;
if ((::RegQueryValueEx(hTabTipCoKey, NULL, NULL, &keyValType, NULL,
&bytesCopied) != ERROR_SUCCESS) ||
((keyValType != REG_EXPAND_SZ) && (keyValType != REG_SZ))) {
if (hTabTipCoKey != NULL) {
::RegCloseKey(hTabTipCoKey);
}
return;
}
// Increase the buffer size for 1 additional null-terminating character.
bytesCopied += sizeof(TCHAR);
TCHAR* tabTipFilePath = new TCHAR[bytesCopied / sizeof(TCHAR)];
::memset(tabTipFilePath, 0, bytesCopied);
DWORD oldBytesCopied = bytesCopied;
if (::RegQueryValueEx(hTabTipCoKey, NULL, NULL, NULL,
(LPBYTE)tabTipFilePath, &bytesCopied) == ERROR_SUCCESS) {
const TCHAR searchedStr[] = _T("%CommonProgramFiles%");
const size_t searchedStrLen = ::_tcslen(searchedStr);
int searchedStrStartIndex = -1;
TCHAR* commonFilesDirPath = NULL;
DWORD commonFilesDirPathLen = 0;
// Check, if '%CommonProgramFiles%' string is present in the defined
// path of the touch keyboard executable.
TCHAR* const searchedStrStart = ::_tcsstr(tabTipFilePath, searchedStr);
if (searchedStrStart != NULL) {
searchedStrStartIndex = searchedStrStart - tabTipFilePath;
// Get value of 'CommonProgramFiles' environment variable, if the
// file path of the touch keyboard executable was found in 32-bit
// registry view, otherwise get value of 'CommonProgramW6432'.
const TCHAR envVar32BitName[] = _T("CommonProgramFiles");
const TCHAR envVar64BitName[] = _T("CommonProgramW6432");
const TCHAR* envVarName = (regViewWithTabTipCoKey == WOW64_32BIT ?
envVar32BitName : envVar64BitName);
DWORD charsStored = ::GetEnvironmentVariable(envVarName, NULL, 0);
if (charsStored > 0) {
commonFilesDirPath = new TCHAR[charsStored];
::memset(commonFilesDirPath, 0, charsStored * sizeof(TCHAR));
DWORD oldCharsStored = charsStored;
if (((charsStored = ::GetEnvironmentVariable(envVarName,
commonFilesDirPath, charsStored)) > 0) &&
(charsStored <= oldCharsStored)) {
commonFilesDirPathLen = charsStored;
} else {
delete[] commonFilesDirPath;
commonFilesDirPath = NULL;
}
}
}
// Calculate 'm_touchKbrdExeFilePath' length in characters including
// the null-terminating character.
DWORD exeFilePathLen = oldBytesCopied / sizeof(TCHAR);
if (commonFilesDirPathLen > 0) {
exeFilePathLen = exeFilePathLen - searchedStrLen +
commonFilesDirPathLen;
}
if (m_touchKbrdExeFilePath != NULL) {
delete[] m_touchKbrdExeFilePath;
m_touchKbrdExeFilePath = NULL;
}
m_touchKbrdExeFilePath = new TCHAR[exeFilePathLen];
::memset(m_touchKbrdExeFilePath, 0, exeFilePathLen * sizeof(TCHAR));
if (commonFilesDirPathLen > 0) {
::_tcsncpy_s(m_touchKbrdExeFilePath, exeFilePathLen, tabTipFilePath,
searchedStrStartIndex);
DWORD charsCopied = searchedStrStartIndex;
::_tcsncpy_s(m_touchKbrdExeFilePath + charsCopied,
exeFilePathLen - charsCopied, commonFilesDirPath,
commonFilesDirPathLen);
charsCopied += commonFilesDirPathLen;
::_tcsncpy_s(m_touchKbrdExeFilePath + charsCopied,
exeFilePathLen - charsCopied, searchedStrStart + searchedStrLen,
bytesCopied / sizeof(TCHAR) -
(searchedStrStartIndex + searchedStrLen));
} else {
::_tcsncpy_s(m_touchKbrdExeFilePath, exeFilePathLen, tabTipFilePath,
bytesCopied / sizeof(TCHAR));
}
// Remove leading and trailing quotation marks.
::StrTrim(m_touchKbrdExeFilePath, _T("\""));
// Verify that a file with the path 'm_touchKbrdExeFilePath' exists.
DWORD fileAttrs = ::GetFileAttributes(m_touchKbrdExeFilePath);
DWORD err = ::GetLastError();
if ((fileAttrs == INVALID_FILE_ATTRIBUTES) ||
(fileAttrs & FILE_ATTRIBUTE_DIRECTORY)) {
delete[] m_touchKbrdExeFilePath;
m_touchKbrdExeFilePath = NULL;
}
if (commonFilesDirPath != NULL) {
delete[] commonFilesDirPath;
}
}
if (tabTipFilePath != NULL) {
delete[] tabTipFilePath;
}
if (hTabTipCoKey != NULL) {
::RegCloseKey(hTabTipCoKey);
}
}
HWND AwtToolkit::GetTouchKeyboardWindow() {
const TCHAR wndClassName[] = _T("IPTip_Main_Window");
HWND hwnd = ::FindWindow(wndClassName, NULL);
if ((hwnd != NULL) && ::IsWindow(hwnd) && ::IsWindowEnabled(hwnd)) {
return hwnd;
}
return NULL;
}
struct ToolkitThreadProc_Data {
bool result;
HANDLE hCompleted;
jobject thread;
jobject threadGroup;
};
void ToolkitThreadProc(void *param)
{
ToolkitThreadProc_Data *data = (ToolkitThreadProc_Data *)param;
bool bNotified = false;
JNIEnv *env;
JavaVMAttachArgs attachArgs;
attachArgs.version = JNI_VERSION_1_2;
attachArgs.name = (char*)"AWT-Windows";
attachArgs.group = data->threadGroup;
jint res = jvm->AttachCurrentThreadAsDaemon((void **)&env, &attachArgs);
if (res < 0) {
return;
}
jobject thread = env->NewGlobalRef(data->thread);
if (thread != NULL) {
jclass cls = env->GetObjectClass(thread);
if (cls != NULL) {
jmethodID runId = env->GetMethodID(cls, "run", "()V");
if (runId != NULL) {
data->result = true;
::SetEvent(data->hCompleted);
bNotified = true;
env->CallVoidMethod(thread, runId);
if (env->ExceptionCheck()) {
env->ExceptionDescribe();
env->ExceptionClear();
// TODO: handle
}
}
env->DeleteLocalRef(cls);
}
env->DeleteGlobalRef(thread);
}
if (!bNotified) {
::SetEvent(data->hCompleted);
}
jvm->DetachCurrentThread();
}
/*
* Class: sun_awt_windows_WToolkit
* Method: startToolkitThread
* Signature: (Ljava/lang/Runnable;Ljava/lang/ThreadGroup)Z
*/
JNIEXPORT jboolean JNICALL
Java_sun_awt_windows_WToolkit_startToolkitThread(JNIEnv *env, jclass cls, jobject thread, jobject threadGroup)
{
AwtToolkit& tk = AwtToolkit::GetInstance();
ToolkitThreadProc_Data data;
data.result = false;
data.thread = env->NewGlobalRef(thread);
data.threadGroup = env->NewGlobalRef(threadGroup);
if (data.thread == NULL || data.threadGroup == NULL) {
return JNI_FALSE;
}
data.hCompleted = ::CreateEvent(NULL, FALSE, FALSE, NULL);
bool result = tk.GetPreloadThread()
.InvokeAndTerminate(ToolkitThreadProc, &data);
if (result) {
::WaitForSingleObject(data.hCompleted, INFINITE);
result = data.result;
} else {
// no awt preloading
// return back to the usual toolkit way
}
::CloseHandle(data.hCompleted);
env->DeleteGlobalRef(data.thread);
env->DeleteGlobalRef(data.threadGroup);
return result ? JNI_TRUE : JNI_FALSE;
}
BOOL AwtToolkit::Initialize(BOOL localPump) {
AwtToolkit& tk = AwtToolkit::GetInstance();
if (!tk.m_isActive || tk.m_mainThreadId != 0) {
/* Already initialized. */
return FALSE;
}
// This call is moved here from AwtToolkit constructor. Having it
// there led to the bug 6480630: there could be a situation when
// ComCtl32Util was constructed but not disposed
ComCtl32Util::GetInstance().InitLibraries();
if (!localPump) {
// if preload thread was run, terminate it
preloadThread.Terminate(true);
}
/* Register this toolkit's helper window */
VERIFY(tk.RegisterClass() != NULL);
// Set up operator new/malloc out of memory handler.
NewHandler::init();
//*************************************************************************
// Bugs 4032109, 4047966, and 4071991 to fix AWT
// crash in 16 color display mode. 16 color mode is supported. Less
// than 16 color is not.
// creighto@eng.sun.com 1997-10-07
//
// Check for at least 16 colors
HDC hDC = ::GetDC(NULL);
if ((::GetDeviceCaps(hDC, BITSPIXEL) * ::GetDeviceCaps(hDC, PLANES)) < 4) {
::MessageBox(NULL,
TEXT("Sorry, but this release of Java requires at least 16 colors"),
TEXT("AWT Initialization Error"),
MB_ICONHAND | MB_APPLMODAL);
::DeleteDC(hDC);
JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
JNU_ThrowByName(env, "java/lang/InternalError",
"unsupported screen depth");
return FALSE;
}
::ReleaseDC(NULL, hDC);
///////////////////////////////////////////////////////////////////////////
tk.m_localPump = localPump;
tk.m_mainThreadId = ::GetCurrentThreadId();
/*
* Create the one-and-only toolkit window. This window isn't
* displayed, but is used to route messages to this thread.
*/
tk.m_toolkitHWnd = tk.CreateToolkitWnd(TEXT("theAwtToolkitWindow"));
DASSERT(tk.m_toolkitHWnd != NULL);
/*
* Setup a GetMessage filter to watch all messages coming out of our
* queue from PreProcessMsg().
*/
tk.m_hGetMessageHook = ::SetWindowsHookEx(WH_GETMESSAGE,
(HOOKPROC)GetMessageFilter,
0, tk.m_mainThreadId);
awt_dnd_initialize();
/*
* Initialization of the touch keyboard related variables.
*/
tk.m_isWin8OrLater = IS_WIN8;
TRY;
JNIEnv* env = AwtToolkit::GetEnv();
jclass sunToolkitCls = env->FindClass("sun/awt/SunToolkit");
DASSERT(sunToolkitCls != 0);
CHECK_NULL_RETURN(sunToolkitCls, FALSE);
jmethodID isTouchKeyboardAutoShowEnabledMID = env->GetStaticMethodID(
sunToolkitCls, "isTouchKeyboardAutoShowEnabled", "()Z");
DASSERT(isTouchKeyboardAutoShowEnabledMID != 0);
CHECK_NULL_RETURN(isTouchKeyboardAutoShowEnabledMID, FALSE);
tk.m_touchKbrdAutoShowIsEnabled = env->CallStaticBooleanMethod(
sunToolkitCls, isTouchKeyboardAutoShowEnabledMID);
CATCH_BAD_ALLOC_RET(FALSE);
if (tk.m_isWin8OrLater && tk.m_touchKbrdAutoShowIsEnabled) {
tk.InitTouchKeyboardExeFilePath();
HMODULE hUser32Dll = ::LoadLibrary(_T("user32.dll"));
if (hUser32Dll != NULL) {
tk.m_pRegisterTouchWindow = (RegisterTouchWindowFunc)
::GetProcAddress(hUser32Dll, "RegisterTouchWindow");
tk.m_pGetTouchInputInfo = (GetTouchInputInfoFunc)
::GetProcAddress(hUser32Dll, "GetTouchInputInfo");
tk.m_pCloseTouchInputHandle = (CloseTouchInputHandleFunc)
::GetProcAddress(hUser32Dll, "CloseTouchInputHandle");
}
if ((tk.m_pRegisterTouchWindow == NULL) ||
(tk.m_pGetTouchInputInfo == NULL) ||
(tk.m_pCloseTouchInputHandle == NULL)) {
tk.m_pRegisterTouchWindow = NULL;
tk.m_pGetTouchInputInfo = NULL;
tk.m_pCloseTouchInputHandle = NULL;
}
}
/*
* End of the touch keyboard related initialization code.
*/
return TRUE;
}
BOOL AwtToolkit::Dispose() {
DTRACE_PRINTLN("In AwtToolkit::Dispose()");
AwtToolkit& tk = AwtToolkit::GetInstance();
if (!tk.m_isActive || tk.m_mainThreadId != ::GetCurrentThreadId()) {
return FALSE;
}
tk.m_isActive = FALSE;
// dispose Direct3D-related resources. This should be done
// before AwtObjectList::Cleanup() as the d3d will attempt to
// shutdown when the last of its windows is disposed of
D3DInitializer::GetInstance().Clean();
AwtObjectList::Cleanup();
awt_dnd_uninitialize();
awt_clipboard_uninitialize((JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2));
if (tk.m_touchKbrdExeFilePath != NULL) {
delete[] tk.m_touchKbrdExeFilePath;
tk.m_touchKbrdExeFilePath = NULL;
}
tk.m_pRegisterTouchWindow = NULL;
tk.m_pGetTouchInputInfo = NULL;
tk.m_pCloseTouchInputHandle = NULL;
if (tk.m_inputMethodHWnd != NULL) {
::SendMessage(tk.m_inputMethodHWnd, WM_IME_CONTROL, IMC_OPENSTATUSWINDOW, 0);
}
tk.m_inputMethodHWnd = NULL;
// wait for any messages to be processed, in particular,
// all WM_AWT_DELETEOBJECT messages that delete components; no
// new messages will appear as all the windows except toolkit
// window are unsubclassed and destroyed
MSG msg;
while (::GetMessage(&msg, NULL, 0, 0)) {
::TranslateMessage(&msg);
::DispatchMessage(&msg);
}
AwtFont::Cleanup();
HWND toolkitHWndToDestroy = tk.m_toolkitHWnd;
tk.m_toolkitHWnd = 0;
VERIFY(::DestroyWindow(toolkitHWndToDestroy) != NULL);
tk.UnregisterClass();
::UnhookWindowsHookEx(tk.m_hGetMessageHook);
UninstallMouseLowLevelHook();
tk.m_mainThreadId = 0;
delete tk.m_cmdIDs;
::CloseHandle(m_waitEvent);
::CloseHandle(m_inputMethodWaitEvent);
tk.m_isDisposed = TRUE;
return TRUE;
}
void AwtToolkit::SetDynamicLayout(BOOL dynamic) {
m_isDynamicLayoutSet = dynamic;
}
BOOL AwtToolkit::IsDynamicLayoutSet() {
return m_isDynamicLayoutSet;
}
BOOL AwtToolkit::IsDynamicLayoutSupported() {
// SPI_GETDRAGFULLWINDOWS is only supported on Win95 if
// Windows Plus! is installed. Otherwise, box frame resize.
BOOL fullWindowDragEnabled = FALSE;
int result = 0;
result = ::SystemParametersInfo(SPI_GETDRAGFULLWINDOWS, 0,
&fullWindowDragEnabled, 0);
return (fullWindowDragEnabled && (result != 0));
}
BOOL AwtToolkit::IsDynamicLayoutActive() {
return (IsDynamicLayoutSet() && IsDynamicLayoutSupported());
}
ATOM AwtToolkit::RegisterClass() {
WNDCLASS wc;
wc.style = 0;
wc.lpfnWndProc = (WNDPROC)WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = AwtToolkit::GetInstance().GetModuleHandle(),
wc.hIcon = AwtToolkit::GetInstance().GetAwtIcon();
wc.hCursor = NULL;
wc.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wc.lpszMenuName = NULL;
wc.lpszClassName = szAwtToolkitClassName;
ATOM ret = ::RegisterClass(&wc);
DASSERT(ret != NULL);
return ret;
}
void AwtToolkit::UnregisterClass() {
VERIFY(::UnregisterClass(szAwtToolkitClassName, AwtToolkit::GetInstance().GetModuleHandle()));
}
/*
* Structure holding the information to create a component. This packet is
* sent to the toolkit window.
*/
struct ComponentCreatePacket {
void* hComponent;
void* hParent;
void (*factory)(void*, void*);
};
/*
* Create an AwtXxxx component using a given factory function
* Implemented by sending a message to the toolkit window to invoke the
* factory function from that thread
*/
void AwtToolkit::CreateComponent(void* component, void* parent,
ComponentFactory compFactory, BOOL isParentALocalReference)
{
JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
/* Since Local references are not valid in another Thread, we need to
create a global reference before we send this to the Toolkit thread.
In some cases this method is called with parent being a native
malloced struct so we cannot and do not need to create a Global
Reference from it. This is indicated by isParentALocalReference */
jobject gcomponent = env->NewGlobalRef((jobject)component);
jobject gparent;
if (isParentALocalReference) gparent = env->NewGlobalRef((jobject)parent);
ComponentCreatePacket ccp = { gcomponent,
isParentALocalReference == TRUE ? gparent : parent,
compFactory };
AwtToolkit::GetInstance().SendMessage(WM_AWT_COMPONENT_CREATE, 0,
(LPARAM)&ccp);
env->DeleteGlobalRef(gcomponent);
if (isParentALocalReference) env->DeleteGlobalRef(gparent);
}
/*
* Destroy an HWND that was created in the toolkit thread. Can be used on
* Components and the toolkit window itself.
*/
void AwtToolkit::DestroyComponentHWND(HWND hwnd)
{
if (!::IsWindow(hwnd)) {
return;
}
AwtToolkit& tk = AwtToolkit::GetInstance();
if ((tk.m_lastMouseOver != NULL) &&
(tk.m_lastMouseOver->GetHWnd() == hwnd))
{
tk.m_lastMouseOver = NULL;
}
::SetWindowLongPtr(hwnd, GWLP_USERDATA, (LONG_PTR)NULL);
tk.SendMessage(WM_AWT_DESTROY_WINDOW, (WPARAM)hwnd, 0);
}
#ifndef SPY_MESSAGES
#define SpyWinMessage(hwin,msg,str)
#else
void SpyWinMessage(HWND hwnd, UINT message, LPCTSTR szComment);
#endif
/*
* An AwtToolkit window is just a means of routing toolkit messages to here.
*/
LRESULT CALLBACK AwtToolkit::WndProc(HWND hWnd, UINT message,
WPARAM wParam, LPARAM lParam)
{
TRY;
JNIEnv *env = GetEnv();
JNILocalFrame lframe(env, 10);
SpyWinMessage(hWnd, message, TEXT("AwtToolkit"));
AwtToolkit::GetInstance().eventNumber++;
/*
* Awt widget creation messages are routed here so that all
* widgets are created on the main thread. Java allows widgets
* to live beyond their creating thread -- by creating them on
* the main thread, a widget can always be properly disposed.
*/
switch (message) {
case WM_AWT_EXECUTE_SYNC: {
jobject peerObject = (jobject)wParam;
AwtObject* object = (AwtObject *)JNI_GET_PDATA(peerObject);
DASSERT( !IsBadReadPtr(object, sizeof(AwtObject)));
AwtObject::ExecuteArgs *args = (AwtObject::ExecuteArgs *)lParam;
DASSERT(!IsBadReadPtr(args, sizeof(AwtObject::ExecuteArgs)));
LRESULT result = 0;
if (object != NULL)
{
result = object->WinThreadExecProc(args);
}
env->DeleteGlobalRef(peerObject);
return result;
}
case WM_AWT_COMPONENT_CREATE: {
ComponentCreatePacket* ccp = (ComponentCreatePacket*)lParam;
DASSERT(ccp->factory != NULL);
DASSERT(ccp->hComponent != NULL);
(*ccp->factory)(ccp->hComponent, ccp->hParent);
return 0;
}
case WM_AWT_DESTROY_WINDOW: {
/* Destroy widgets from this same thread that created them */
VERIFY(::DestroyWindow((HWND)wParam) != NULL);
return 0;
}
case WM_AWT_DISPOSE: {
if(wParam != NULL) {
jobject self = (jobject)wParam;
AwtObject *o = (AwtObject *) JNI_GET_PDATA(self);
env->DeleteGlobalRef(self);
if(o != NULL && theAwtObjectList.Remove(o)) {
o->Dispose();
}
}
return 0;
}
case WM_AWT_DISPOSEPDATA: {
/*
* NOTE: synchronization routine (like in WM_AWT_DISPOSE) was omitted because
* this handler is called ONLY while disposing Cursor and Font objects where
* synchronization takes place.
*/
AwtObject *o = (AwtObject *) wParam;
if(o != NULL && theAwtObjectList.Remove(o)) {
o->Dispose();
}
return 0;
}
case WM_AWT_DELETEOBJECT: {
AwtObject *p = (AwtObject *) wParam;
if (p->CanBeDeleted()) {
// all the messages for this component are processed, so
// it can be deleted
delete p;
} else {
// postpone deletion, waiting for all the messages for this
// component to be processed
AwtToolkit::GetInstance().PostMessage(WM_AWT_DELETEOBJECT, wParam, (LPARAM)0);
}
return 0;
}
case WM_AWT_OBJECTLISTCLEANUP: {
AwtObjectList::Cleanup();
return 0;
}
case WM_SYSCOLORCHANGE: {
jclass systemColorClass = env->FindClass("java/awt/SystemColor");
DASSERT(systemColorClass);
if (!systemColorClass) throw std::bad_alloc();
jmethodID mid = env->GetStaticMethodID(systemColorClass, "updateSystemColors", "()V");
DASSERT(mid);
if (!mid) throw std::bad_alloc();
env->CallStaticVoidMethod(systemColorClass, mid);
/* FALL THROUGH - NO BREAK */
}