if_ole.cpp
资源名称:vim53src.zip [点击查看]
上传用户:gddssl
上传日期:2007-01-06
资源大小:1003k
文件大小:17k
源码类别:
编辑器/阅读器
开发平台:
DOS
- /* vi:set ts=8 sts=4 sw=4:
- *
- * VIM - Vi IMproved by Bram Moolenaar
- *
- * Do ":help uganda" in Vim to read copying and usage conditions.
- * Do ":help credits" in Vim to see a list of people who contributed.
- */
- #ifdef HAVE_OLE
- #include <windows.h>
- #include <oleauto.h>
- extern "C" {
- #include "vim.h"
- }
- #include "if_ole.h" // Interface definitions
- #include "iid_ole.c" // UUID definitions (compile here)
- /*****************************************************************************
- 1. Internal definitions for this file
- *****************************************************************************/
- class CVim;
- class CVimCF;
- /* Internal data */
- // The identifier of the registered class factory
- static unsigned long cf_id = 0;
- // The identifier of the running application object
- static unsigned long app_id = 0;
- // The single global instance of the class factory
- static CVimCF *cf = 0;
- // The single global instance of the application object
- static CVim *app = 0;
- /* GUIDs, versions and type library information */
- #define MYCLSID CLSID_Vim
- #define MYLIBID LIBID_Vim
- #define MYIID IID_IVim
- #define MAJORVER 1
- #define MINORVER 0
- #define LOCALE 0x0409
- #define MYNAME "Vim"
- #define MYPROGID "Vim.Application.1"
- #define MYVIPROGID "Vim.Application"
- #define MAX_CLSID_LEN 100
- /*****************************************************************************
- 2. The application object
- *****************************************************************************/
- /* Definition
- * ----------
- */
- class CVim : public IVim
- {
- public:
- ~CVim();
- static CVim *Create(int* pbDoRestart);
- // IUnknown members
- STDMETHOD(QueryInterface)(REFIID riid, void ** ppv);
- STDMETHOD_(unsigned long, AddRef)(void);
- STDMETHOD_(unsigned long, Release)(void);
- // IDispatch members
- STDMETHOD(GetTypeInfoCount)(UINT *pCount);
- STDMETHOD(GetTypeInfo)(UINT iTypeInfo, LCID, ITypeInfo **ppITypeInfo);
- STDMETHOD(GetIDsOfNames)(const IID& iid, OLECHAR** names, UINT n, LCID, DISPID *dispids);
- STDMETHOD(Invoke)(DISPID member, const IID& iid, LCID, WORD flags, DISPPARAMS *dispparams, VARIANT *result, EXCEPINFO *excepinfo, UINT *argerr);
- // IVim members
- STDMETHOD(SendKeys)(BSTR keys);
- STDMETHOD(Eval)(BSTR expr, BSTR *result);
- STDMETHOD(SetForeground)(void);
- private:
- // Constructor is private - create using CVim::Create()
- CVim() : ref(0), typeinfo(0) {};
- // Reference count
- unsigned long ref;
- // The object's TypeInfo
- ITypeInfo *typeinfo;
- };
- /* Implementation
- * --------------
- */
- CVim *CVim::Create(int* pbDoRestart)
- {
- HRESULT hr;
- CVim *me = 0;
- ITypeLib *typelib = 0;
- ITypeInfo *typeinfo = 0;
- *pbDoRestart = FALSE;
- // Create the object
- me = new CVim();
- if (me == NULL)
- {
- MessageBox(0, "Cannot create application object", "Vim Initialisation", 0);
- return NULL;
- }
- // Load the type library from the registry
- hr = LoadRegTypeLib(MYLIBID, 1, 0, 0x00, &typelib);
- if (FAILED(hr))
- {
- delete me;
- if (MessageBox(0, "Cannot load registered type library.nDo you want to register Vim now?",
- "Vim Initialisation", MB_YESNO | MB_ICONQUESTION) == IDYES)
- {
- RegisterMe();
- MessageBox(0, "You must restart Vim in order for the registration to take effect.", "Vim Initialisation", 0);
- *pbDoRestart = TRUE;
- }
- return NULL;
- }
- // Get the type info of the vtable interface
- hr = typelib->GetTypeInfoOfGuid(MYIID, &typeinfo);
- typelib->Release();
- if (FAILED(hr))
- {
- MessageBox(0, "Cannot get interface type information", "Vim Initialisation", 0);
- delete me;
- return NULL;
- }
- // Save the type information
- me->typeinfo = typeinfo;
- return me;
- }
- CVim::~CVim()
- {
- if (typeinfo)
- typeinfo->Release();
- }
- STDMETHODIMP
- CVim::QueryInterface(REFIID riid, void **ppv)
- {
- if (IsEqualIID(riid, IID_IUnknown) || IsEqualIID(riid, IID_IDispatch) || IsEqualIID(riid, MYIID))
- {
- AddRef();
- *ppv = this;
- return S_OK;
- }
- *ppv = 0;
- return E_NOINTERFACE;
- }
- STDMETHODIMP_(ULONG)
- CVim::AddRef()
- {
- return ++ref;
- }
- STDMETHODIMP_(ULONG)
- CVim::Release()
- {
- // Don't delete the object when the reference count reaches zero, as there
- // is only a single application object, and its lifetime is controlled by
- // the running instance, not by its reference count.
- if (ref > 0)
- --ref;
- return ref;
- }
- STDMETHODIMP
- CVim::GetTypeInfoCount(UINT *pCount)
- {
- *pCount = 1;
- return S_OK;
- }
- STDMETHODIMP
- CVim::GetTypeInfo(UINT iTypeInfo, LCID, ITypeInfo **ppITypeInfo)
- {
- *ppITypeInfo = 0;
- if (iTypeInfo != 0)
- return DISP_E_BADINDEX;
- typeinfo->AddRef();
- *ppITypeInfo = typeinfo;
- return S_OK;
- }
- STDMETHODIMP
- CVim::GetIDsOfNames(
- const IID& iid,
- OLECHAR** names,
- UINT n,
- LCID,
- DISPID *dispids)
- {
- if (iid != IID_NULL)
- return DISP_E_UNKNOWNINTERFACE;
- return typeinfo->GetIDsOfNames(names, n, dispids);
- }
- STDMETHODIMP
- CVim::Invoke(
- DISPID member,
- const IID& iid,
- LCID,
- WORD flags,
- DISPPARAMS *dispparams,
- VARIANT *result,
- EXCEPINFO *excepinfo,
- UINT *argerr)
- {
- if (iid != IID_NULL)
- return DISP_E_UNKNOWNINTERFACE;
- ::SetErrorInfo(0, NULL);
- return typeinfo->Invoke(static_cast<IDispatch*>(this),
- member, flags, dispparams,
- result, excepinfo, argerr);
- }
- STDMETHODIMP
- CVim::SetForeground(void)
- {
- /* Make the Vim window come to the foreground */
- gui_mch_set_foreground();
- return S_OK;
- }
- STDMETHODIMP
- CVim::SendKeys(BSTR keys)
- {
- int len;
- char *buffer;
- char_u *str;
- char_u *ptr;
- /* Get a suitable buffer */
- len = WideCharToMultiByte(CP_ACP, 0, keys, -1, 0, 0, 0, 0);
- buffer = (char *)alloc(len+1);
- if (buffer == NULL)
- return E_OUTOFMEMORY;
- len = WideCharToMultiByte(CP_ACP, 0, keys, -1, buffer, len, 0, 0);
- if (len == 0)
- {
- vim_free(buffer);
- return E_INVALIDARG;
- }
- /* Translate key codes like <Esc> */
- str = replace_termcodes((char_u *)buffer, &ptr, FALSE, TRUE);
- /* If ptr was set, then a new buffer was allocated,
- * so we can free the old one.
- */
- if (ptr)
- vim_free((char_u *)(buffer));
- /* Reject strings too long to fit in the input buffer. Allow 10 bytes
- * space to cover for the (remote) possibility that characters may enter
- * the input buffer between now and when the WM_OLE message is actually
- * processed. If more that 10 characters enter the input buffer in that
- * time, the WM_OLE processing will simply fail to insert the characters.
- */
- if ((int)(STRLEN(str)) > (vim_free_in_input_buf() - 10))
- {
- vim_free(str);
- return E_INVALIDARG;
- }
- /* Pass the string to the main input loop. The memory will be freed when
- * the message is processed.
- */
- PostMessage(NULL, WM_OLE, 0, (LPARAM)str);
- return S_OK;
- }
- STDMETHODIMP
- CVim::Eval(BSTR expr, BSTR *result)
- {
- #ifdef WANT_EVAL
- size_t len;
- char *buffer;
- char *str;
- wchar_t *w_buffer;
- /* Get a suitable buffer */
- len = WideCharToMultiByte(CP_ACP, 0, expr, -1, 0, 0, 0, 0);
- buffer = (char *)alloc(len);
- if (buffer == NULL)
- return E_OUTOFMEMORY;
- /* Convert the (wide character) expression to an ASCII string */
- len = WideCharToMultiByte(CP_ACP, 0, expr, -1, buffer, len, 0, 0);
- if (len == 0)
- return E_INVALIDARG;
- /* Evaluate the expression */
- str = (char *)eval_to_string((char_u *)buffer, NULL);
- vim_free(buffer);
- /* Get a suitable buffer to store the result in wide characters */
- len = MultiByteToWideChar(CP_ACP, 0, str, -1, 0, 0);
- w_buffer = (wchar_t *)alloc(len * sizeof(wchar_t));
- if (w_buffer == NULL)
- {
- vim_free(str);
- return E_OUTOFMEMORY;
- }
- /* Convert the result to wide characters */
- len = MultiByteToWideChar(CP_ACP, 0, str, -1, w_buffer, len);
- vim_free(str);
- if (len == 0)
- {
- vim_free(w_buffer);
- return E_FAIL;
- }
- /* Store the result */
- *result = SysAllocString(w_buffer);
- vim_free(w_buffer);
- return S_OK;
- #else
- return E_NOTIMPL;
- #endif
- }
- /*****************************************************************************
- 3. The class factory
- *****************************************************************************/
- /* Definition
- * ----------
- */
- class CVimCF : public IClassFactory
- {
- public:
- static CVimCF *Create();
- STDMETHOD(QueryInterface)(REFIID riid, void ** ppv);
- STDMETHOD_(unsigned long, AddRef)(void);
- STDMETHOD_(unsigned long, Release)(void);
- STDMETHOD(CreateInstance)(IUnknown *punkOuter, REFIID riid, void ** ppv);
- STDMETHOD(LockServer)(BOOL lock);
- private:
- // Constructor is private - create via Create()
- CVimCF() : ref(0) {};
- // Reference count
- unsigned long ref;
- };
- /* Implementation
- * --------------
- */
- CVimCF *CVimCF::Create()
- {
- CVimCF *me = new CVimCF();
- if (me == NULL)
- MessageBox(0, "Cannot create class factory", "Vim Initialisation", 0);
- return me;
- }
- STDMETHODIMP
- CVimCF::QueryInterface(REFIID riid, void **ppv)
- {
- if (IsEqualIID(riid, IID_IUnknown) || IsEqualIID(riid, IID_IClassFactory))
- {
- AddRef();
- *ppv = this;
- return S_OK;
- }
- *ppv = 0;
- return E_NOINTERFACE;
- }
- STDMETHODIMP_(ULONG)
- CVimCF::AddRef()
- {
- return ++ref;
- }
- STDMETHODIMP_(ULONG)
- CVimCF::Release()
- {
- if (--ref == 0)
- {
- delete this;
- return 0;
- }
- return ref;
- }
- STDMETHODIMP
- CVimCF::CreateInstance(IUnknown *punkOuter, REFIID riid, void **ppv)
- {
- return app->QueryInterface(riid, ppv);
- }
- STDMETHODIMP
- CVimCF::LockServer(BOOL lock)
- {
- return S_OK;
- }
- /*****************************************************************************
- 4. Registry manipulation code
- *****************************************************************************/
- // Internal use only
- static void SetKeyAndValue(const char* path, const char* subkey, const char* value);
- static void GUIDtochar(const GUID& guid, char* GUID, int length);
- static void RecursiveDeleteKey(HKEY hKeyParent, const char* child);
- static const int GUID_STRING_SIZE = 39;
- // Register the component in the registry
- //
- // Note: There is little error checking in this code at present.
- extern "C" void RegisterMe()
- {
- BOOL ok = TRUE;
- // Get the application startup command
- char module[MAX_PATH];
- ::GetModuleFileName(NULL, module, MAX_PATH);
- // Unregister first (quietly)
- UnregisterMe(FALSE);
- // Convert the CLSID into a char
- char clsid[GUID_STRING_SIZE];
- GUIDtochar(MYCLSID, clsid, sizeof(clsid));
- // Convert the LIBID into a char
- char libid[GUID_STRING_SIZE];
- GUIDtochar(MYLIBID, libid, sizeof(libid));
- // Build the key CLSID\{...}
- char Key[MAX_CLSID_LEN];
- strcpy(Key, "CLSID\");
- strcat(Key, clsid);
- // Add the CLSID to the registry
- SetKeyAndValue(Key, NULL, MYNAME);
- SetKeyAndValue(Key, "LocalServer32", module);
- SetKeyAndValue(Key, "ProgID", MYPROGID);
- SetKeyAndValue(Key, "VersionIndependentProgID", MYVIPROGID);
- SetKeyAndValue(Key, "TypeLib", libid);
- // Add the version-independent ProgID subkey under HKEY_CLASSES_ROOT
- SetKeyAndValue(MYVIPROGID, NULL, MYNAME);
- SetKeyAndValue(MYVIPROGID, "CLSID", clsid);
- SetKeyAndValue(MYVIPROGID, "CurVer", MYPROGID);
- // Add the versioned ProgID subkey under HKEY_CLASSES_ROOT
- SetKeyAndValue(MYPROGID, NULL, MYNAME);
- SetKeyAndValue(MYPROGID, "CLSID", clsid);
- wchar_t w_module[MAX_PATH];
- MultiByteToWideChar(CP_ACP, 0, module, -1, w_module, MAX_PATH);
- ITypeLib *typelib = NULL;
- if (FAILED(LoadTypeLib(w_module, &typelib)))
- {
- MessageBox(0, "Cannot load type library to register", "Vim Registration", 0);
- ok = FALSE;
- }
- else
- {
- if (FAILED(RegisterTypeLib(typelib, w_module, NULL)))
- {
- MessageBox(0, "Cannot register type library", "Vim Registration", 0);
- ok = FALSE;
- }
- typelib->Release();
- }
- if (ok)
- MessageBox(0, "Registered successfully", "Vim", 0);
- }
- // Remove the component from the registry
- //
- // Note: There is little error checking in this code, to allow incomplete
- // or failed registrations to be undone.
- extern "C" void UnregisterMe(int bNotifyUser)
- {
- // Unregister the type library
- ITypeLib *typelib;
- if (SUCCEEDED(LoadRegTypeLib(MYLIBID, MAJORVER, MINORVER, LOCALE, &typelib)))
- {
- TLIBATTR *tla;
- if (SUCCEEDED(typelib->GetLibAttr(&tla)))
- {
- UnRegisterTypeLib(tla->guid, tla->wMajorVerNum, tla->wMinorVerNum,
- tla->lcid, tla->syskind);
- typelib->ReleaseTLibAttr(tla);
- }
- typelib->Release();
- }
- // Convert the CLSID into a char
- char clsid[GUID_STRING_SIZE];
- GUIDtochar(MYCLSID, clsid, sizeof(clsid));
- // Build the key CLSID\{...}
- char Key[MAX_CLSID_LEN];
- strcpy(Key, "CLSID\");
- strcat(Key, clsid);
- // Delete the CLSID Key - CLSID{...}
- RecursiveDeleteKey(HKEY_CLASSES_ROOT, Key);
- // Delete the version-independent ProgID Key
- RecursiveDeleteKey(HKEY_CLASSES_ROOT, MYVIPROGID);
- // Delete the ProgID key
- RecursiveDeleteKey(HKEY_CLASSES_ROOT, MYPROGID);
- if (bNotifyUser)
- MessageBox(0, "Unregistered successfully", "Vim", 0);
- }
- /****************************************************************************/
- // Convert a GUID to a char string
- static void GUIDtochar(const GUID& guid, char* GUID, int length)
- {
- // Get wide string version
- LPOLESTR wGUID = NULL;
- StringFromCLSID(guid, &wGUID);
- // Covert from wide characters to non-wide
- wcstombs(GUID, wGUID, length);
- // Free memory
- CoTaskMemFree(wGUID);
- }
- // Delete a key and all of its descendents
- static void RecursiveDeleteKey(HKEY hKeyParent, const char* child)
- {
- // Open the child
- HKEY hKeyChild;
- LONG result = RegOpenKeyEx(hKeyParent, child, 0, KEY_ALL_ACCESS, &hKeyChild);
- if (result != ERROR_SUCCESS)
- return;
- // Enumerate all of the decendents of this child
- FILETIME time;
- char buffer[1024];
- DWORD size = 1024;
- while (RegEnumKeyEx(hKeyChild, 0, buffer, &size, NULL,
- NULL, NULL, &time) == S_OK)
- {
- // Delete the decendents of this child
- RecursiveDeleteKey(hKeyChild, buffer);
- size = 256;
- }
- // Close the child
- RegCloseKey(hKeyChild);
- // Delete this child
- RegDeleteKey(hKeyParent, child);
- }
- // Create a key and set its value
- static void SetKeyAndValue(const char* key, const char* subkey, const char* value)
- {
- HKEY hKey;
- char buffer[1024];
- strcpy(buffer, key);
- // Add subkey name to buffer.
- if (subkey)
- {
- strcat(buffer, "\");
- strcat(buffer, subkey);
- }
- // Create and open key and subkey.
- long result = RegCreateKeyEx(HKEY_CLASSES_ROOT,
- buffer,
- 0, NULL, REG_OPTION_NON_VOLATILE,
- KEY_ALL_ACCESS, NULL,
- &hKey, NULL);
- if (result != ERROR_SUCCESS)
- return;
- // Set the value
- if (value)
- RegSetValueEx(hKey, NULL, 0, REG_SZ, (BYTE *)value, strlen(value)+1);
- RegCloseKey(hKey);
- }
- /*****************************************************************************
- 5. OLE Initialisation and shutdown processing
- *****************************************************************************/
- extern "C" void InitOLE(int* pbDoRestart)
- {
- HRESULT hr;
- *pbDoRestart = FALSE;
- // Initialize the OLE libraries
- hr = OleInitialize(NULL);
- if (FAILED(hr))
- {
- MessageBox(0, "Cannot initialise OLE", "Vim Initialisation", 0);
- goto error0;
- }
- // Create the application object
- app = CVim::Create(pbDoRestart);
- if (app == NULL)
- goto error1;
- // Create the class factory
- cf = CVimCF::Create();
- if (cf == NULL)
- goto error1;
- // Register the class factory
- hr = CoRegisterClassObject(
- MYCLSID,
- cf,
- CLSCTX_LOCAL_SERVER,
- REGCLS_MULTIPLEUSE,
- &cf_id);
- if (FAILED(hr))
- {
- MessageBox(0, "Cannot register class factory", "Vim Initialisation", 0);
- goto error1;
- }
- // Register the application object as active
- hr = RegisterActiveObject(
- app,
- MYCLSID,
- NULL,
- &app_id);
- if (FAILED(hr))
- {
- MessageBox(0, "Cannot register application object", "Vim Initialisation", 0);
- goto error1;
- }
- return;
- // Errors: tidy up as much as needed and return
- error1:
- UninitOLE();
- error0:
- return;
- }
- extern "C" void UninitOLE()
- {
- // Unregister the application object
- if (app_id)
- {
- RevokeActiveObject(app_id, NULL);
- app_id = 0;
- }
- // Unregister the class factory
- if (cf_id)
- {
- CoRevokeClassObject(cf_id);
- cf_id = 0;
- }
- // Delete the class factory
- if (cf)
- {
- delete cf;
- cf = NULL;
- }
- // Delete the application object
- if (app)
- {
- delete app;
- app = NULL;
- }
- // Shut down the OLE libraries
- OleUninitialize();
- }
- #endif /* HAVE_OLE */