зеркало из https://github.com/mozilla/gecko-dev.git
345 строки
9.4 KiB
C++
345 строки
9.4 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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////////////////////////////////////////////////////////////////////////////////
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// Plugin Manager Methods to support the JVM Plugin API
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////////////////////////////////////////////////////////////////////////////////
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#include "npglue.h"
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#include "prefapi.h"
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#include "xp_str.h"
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#include "libmocha.h"
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#include "nsjvm.h"
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#if 0 // XXX for now
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static int PR_CALLBACK
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JavaPrefChanged(const char *prefStr, void* data)
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{
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nsPluginManager* mgr = (nsPluginManager*)data;
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PRBool prefBool;
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PREF_GetBoolPref(prefStr, &prefBool);
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mgr->SetJVMEnabled(prefBool);
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return 0;
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}
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void
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nsPluginManager::EnsurePrefCallbackRegistered(void)
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{
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if (fRegisteredJavaPrefChanged != PR_TRUE) {
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fRegisteredJavaPrefChanged = PR_TRUE;
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PREF_RegisterCallback("security.enable_java", JavaPrefChanged, this);
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JavaPrefChanged("security.enable_java", this);
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}
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}
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PRBool
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nsPluginManager::GetJVMEnabled(void)
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{
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EnsurePrefCallbackRegistered();
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return fJVM->GetJVMEnabled();
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}
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void
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nsPluginManager::SetJVMEnabled(PRBool enable)
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{
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return fJVM->SetJVMEnabled(enable);
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}
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JVMStatus
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nsPluginManager::GetJVMStatus(void)
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{
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EnsurePrefCallbackRegistered();
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return fJVM->GetJVMStatus();
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}
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////////////////////////////////////////////////////////////////////////////////
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// Should be in a header; must solve build-order problem first
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extern void SU_Initialize(JRIEnv * env);
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JVMStatus
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nsPluginManager::StartupJVM()
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{
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// Be sure to check the prefs first before asking java to startup.
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if (GetJVMStatus() == JVMStatus_Disabled) {
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return JVMStatus_Disabled;
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}
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JVMStatus status = fJVM->StartupJVM();
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if (status == JVMStatus_Ok) {
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JRIEnv* env = fJVM->EnsureExecEnv();
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/* initialize VersionRegistry native routines */
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/* it is not an error that prevents java from starting if this stuff throws exceptions */
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#ifdef MOZ_SMARTUPDATE
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SU_Initialize(env);
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if (JRI_ExceptionOccurred(env)) {
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#if DEBUG
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fJVM->PrintToConsole("LJ: SU_Initialize failed. Bugs to atotic.\n");
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#endif
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goto error;
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}
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#endif /* MOZ_SMARTUPDATE */
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}
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return status;
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error:
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#if DEBUG
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JRI_ExceptionDescribe(env);
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#endif
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JRI_ExceptionClear(env);
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ShutdownJVM();
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return JVMStatus_JavaError;
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}
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JVMStatus
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nsPluginManager::ShutdownJVM(PRBool fullShutdown = PR_TRUE)
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{
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return fJVM->ShutdownJVM();
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}
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#endif // 0
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////////////////////////////////////////////////////////////////////////////////
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void NP_LOADDS
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nsPluginManager::BeginWaitCursor(void)
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{
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if (fWaiting == 0) {
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#ifdef XP_PC
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fOldCursor = (void*)GetCursor();
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HCURSOR newCursor = LoadCursor(NULL, IDC_WAIT);
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if (newCursor)
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SetCursor(newCursor);
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#endif
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#ifdef XP_MAC
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startAsyncCursors();
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#endif
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}
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fWaiting++;
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}
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void NP_LOADDS
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nsPluginManager::EndWaitCursor(void)
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{
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fWaiting--;
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if (fWaiting == 0) {
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#ifdef XP_PC
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if (fOldCursor)
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SetCursor((HCURSOR)fOldCursor);
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#endif
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#ifdef XP_MAC
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stopAsyncCursors();
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#endif
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fOldCursor = NULL;
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}
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}
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////////////////////////////////////////////////////////////////////////////////
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const char* NP_LOADDS
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nsPluginManager::GetProgramPath(void)
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{
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return fProgramPath;
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}
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const char* NP_LOADDS
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nsPluginManager::GetTempDirPath(void)
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{
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// XXX I don't need a static really, the browser holds the tempDir name
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// as a static string -- it's just the XP_TempDirName that strdups it.
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static const char* tempDirName = NULL;
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if (tempDirName == NULL)
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tempDirName = XP_TempDirName();
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return tempDirName;
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}
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nsresult NP_LOADDS
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nsPluginManager::GetFileName(const char* fn, FileNameType type,
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char* resultBuf, PRUint32 bufLen)
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{
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// XXX This should be rewritten so that we don't have to malloc the name.
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XP_FileType filetype;
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if (type == SIGNED_APPLET_DBNAME)
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filetype = xpSignedAppletDB;
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else if (type == TEMP_FILENAME)
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filetype = xpTemporary;
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else
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return NS_ERROR_ILLEGAL_VALUE;
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char* tempName = WH_FileName(fn, filetype);
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if (tempName != NULL) return NS_ERROR_OUT_OF_MEMORY;
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XP_STRNCPY_SAFE(resultBuf, tempName, bufLen);
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XP_FREE(tempName);
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return NS_OK;
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}
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nsresult NP_LOADDS
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nsPluginManager::NewTempFileName(const char* prefix, char* resultBuf, PRUint32 bufLen)
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{
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// XXX This should be rewritten so that we don't have to malloc the name.
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char* tempName = WH_TempName(xpTemporary, prefix);
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if (tempName != NULL) return NS_ERROR_OUT_OF_MEMORY;
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XP_STRNCPY_SAFE(resultBuf, tempName, bufLen);
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XP_FREE(tempName);
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return NS_OK;
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}
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PRBool NP_LOADDS
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nsPluginManager::HandOffJSLock(PRThread* oldOwner, PRThread* newOwner)
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{
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return LM_HandOffJSLock(oldOwner, newOwner);
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}
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////////////////////////////////////////////////////////////////////////////
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// Debugger Stuff
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extern "C" HWND FindNavigatorHiddenWindow(void);
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PRBool NP_LOADDS
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nsPluginManager::SetDebugAgentPassword(PRInt32 pwd)
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{
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#if defined(XP_PC) && defined(_WIN32)
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HWND win = FindNavigatorHiddenWindow();
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HANDLE sem;
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long err;
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/* set up by aHiddenFrameClass in CNetscapeApp::InitInstance */
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err = SetWindowLong(win, 0, pwd);
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if (err == 0) {
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// PR_LOG(NSJAVA, PR_LOG_ALWAYS,
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// ("SetWindowLong returned %ld (err=%d)\n", err, GetLastError()));
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/* continue so that we try to wake up the debugger */
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}
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sem = OpenSemaphore(SEMAPHORE_MODIFY_STATE, FALSE, "Netscape-Symantec Debugger");
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if (sem) {
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ReleaseSemaphore(sem, 1, NULL);
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CloseHandle(sem);
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}
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return PR_TRUE;
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#else
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return PR_FALSE;
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#endif
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}
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////////////////////////////////////////////////////////////////////////////////
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#if 0 // XXX for now
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PRBool
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nsPluginManager::StartDebugger(JVMDebugPort port)
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{
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JVMError err = fJVM->StartDebugger(port);
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if (err != JVMError_NoError) {
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JRIEnv* env = fJVM->EnsureJNIEnv();
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ReportJVMError(env, err);
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return PR_FALSE;
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}
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return PR_TRUE;
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}
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void
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nsPluginManager::ReportJVMError(JRIEnv* env, JVMError err)
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{
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MWContext* cx = XP_FindSomeContext();
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char *s;
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switch (err) {
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case LJStartupError_NoClasses: {
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const char* cp = CLASSPATH();
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cp = lj_ConvertToPlatformPathList(cp);
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s = PR_smprintf(XP_GetString(XP_JAVA_NO_CLASSES),
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lj_jar_name, lj_jar_name,
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(cp ? cp : "<none>"));
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free((void*)cp);
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break;
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}
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case LJStartupError_JavaError: {
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const char* msg = GetJavaErrorString(env);
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#ifdef DEBUG
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JRI_ExceptionDescribe(env);
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#endif
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s = PR_smprintf(XP_GetString(XP_JAVA_STARTUP_FAILED),
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(msg ? msg : ""));
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if (msg) free((void*)msg);
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break;
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}
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case LJStartupError_NoDebugger: {
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s = PR_smprintf(XP_GetString(XP_JAVA_DEBUGGER_FAILED));
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break;
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}
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default:
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return; /* don't report anything */
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}
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if (s) {
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FE_Alert(cx, s);
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free(s);
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}
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}
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/* stolen from java_lang_Object.h (jri version) */
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#define classname_java_lang_Object "java/lang/Object"
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#define name_java_lang_Object_toString "toString"
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#define sig_java_lang_Object_toString "()Ljava/lang/String;"
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const char*
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nsPluginManager::GetJavaErrorString(JRIEnv* env)
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{
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/* XXX javah is a pain wrt mixing JRI and JDK native methods.
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Since we need to call a method on Object, we'll do it the hard way
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to avoid using javah for this.
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Maybe we need a new JRI entry point for toString. Yikes! */
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const char* msg;
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struct java_lang_Class* classObject;
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JRIMethodID toString;
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struct java_lang_String* excString;
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struct java_lang_Throwable* exc = JRI_ExceptionOccurred(env);
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if (exc == NULL) {
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return strdup(""); /* XXX better "no error" message? */
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}
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/* Got to do this before trying to find a class (like Object).
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This is because the runtime refuses to do this with a pending
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exception! I think it's broken. */
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JRI_ExceptionClear(env);
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classObject = (struct java_lang_Class*)
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JRI_FindClass(env, classname_java_lang_Object);
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toString = JRI_GetMethodID(env, classObject,
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name_java_lang_Object_toString,
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sig_java_lang_Object_toString);
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excString = (struct java_lang_String *)
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JRI_CallMethod(env)(env, JRI_CallMethod_op,
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(struct java_lang_Object*)exc, toString);
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/* XXX change to JRI_GetStringPlatformChars */
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msg = JRI_GetStringPlatformChars(env, excString, NULL, 0);
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if (msg == NULL) return NULL;
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return strdup(msg);
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}
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#endif // 0
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////////////////////////////////////////////////////////////////////////////////
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