diff options
author | suke <suke@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2014-08-15 11:36:12 +0000 |
---|---|---|
committer | suke <suke@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2014-08-15 11:36:12 +0000 |
commit | cd3d7fe846d4671671612658c9f76ce1ec4c3d56 (patch) | |
tree | 88af6fc248ba50407446d090966f42e62ee8fe0e /ext/win32ole/win32ole_event.c | |
parent | 3e759ed78d99193260ddda9b8dd80bc5710509fc (diff) | |
download | ruby-cd3d7fe846d4671671612658c9f76ce1ec4c3d56.tar.gz |
* ext/win32ole/win32ole.c: seperate WIN32OLE_EVENT src from
win32ole.c.
* ext/win32ole/win32ole.h: ditto.
* ext/win32ole/win32ole_event.c: ditto.
* ext/win32ole/win32ole_event.h: ditto.
* ext/win32ole/depend: ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47192 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ext/win32ole/win32ole_event.c')
-rw-r--r-- | ext/win32ole/win32ole_event.c | 1254 |
1 files changed, 1254 insertions, 0 deletions
diff --git a/ext/win32ole/win32ole_event.c b/ext/win32ole/win32ole_event.c new file mode 100644 index 0000000000..79602eef72 --- /dev/null +++ b/ext/win32ole/win32ole_event.c @@ -0,0 +1,1254 @@ +#include "win32ole.h" + +/* + * Document-class: WIN32OLE_EVENT + * + * <code>WIN32OLE_EVENT</code> objects controls OLE event. + */ + +typedef struct { + struct IEventSinkVtbl * lpVtbl; +} IEventSink, *PEVENTSINK; + +typedef struct IEventSinkVtbl IEventSinkVtbl; + +struct IEventSinkVtbl { + STDMETHOD(QueryInterface)( + PEVENTSINK, + REFIID, + LPVOID *); + STDMETHOD_(ULONG, AddRef)(PEVENTSINK); + STDMETHOD_(ULONG, Release)(PEVENTSINK); + + STDMETHOD(GetTypeInfoCount)( + PEVENTSINK, + UINT *); + STDMETHOD(GetTypeInfo)( + PEVENTSINK, + UINT, + LCID, + ITypeInfo **); + STDMETHOD(GetIDsOfNames)( + PEVENTSINK, + REFIID, + OLECHAR **, + UINT, + LCID, + DISPID *); + STDMETHOD(Invoke)( + PEVENTSINK, + DISPID, + REFIID, + LCID, + WORD, + DISPPARAMS *, + VARIANT *, + EXCEPINFO *, + UINT *); +}; + +typedef struct tagIEVENTSINKOBJ { + IEventSinkVtbl *lpVtbl; + DWORD m_cRef; + IID m_iid; + int m_event_id; + ITypeInfo *pTypeInfo; +}IEVENTSINKOBJ, *PIEVENTSINKOBJ; + +struct oleeventdata { + DWORD dwCookie; + IConnectionPoint *pConnectionPoint; + long event_id; +}; + +static VALUE ary_ole_event; +static ID id_events; + +VALUE cWIN32OLE_EVENT; + +static BOOL g_IsEventSinkVtblInitialized = FALSE; + +static IEventSinkVtbl vtEventSink; + +void EVENTSINK_Destructor(PIEVENTSINKOBJ); +static void ole_val2ptr_variant(VALUE val, VARIANT *var); +static void hash2ptr_dispparams(VALUE hash, ITypeInfo *pTypeInfo, DISPID dispid, DISPPARAMS *pdispparams); +static VALUE hash2result(VALUE hash); +static void ary2ptr_dispparams(VALUE ary, DISPPARAMS *pdispparams); +static VALUE exec_callback(VALUE arg); +static VALUE rescue_callback(VALUE arg); +static HRESULT find_iid(VALUE ole, char *pitf, IID *piid, ITypeInfo **ppTypeInfo); +static HRESULT find_coclass(ITypeInfo *pTypeInfo, TYPEATTR *pTypeAttr, ITypeInfo **pTypeInfo2, TYPEATTR **pTypeAttr2); +static HRESULT find_default_source_from_typeinfo(ITypeInfo *pTypeInfo, TYPEATTR *pTypeAttr, ITypeInfo **ppTypeInfo); +static HRESULT find_default_source(VALUE ole, IID *piid, ITypeInfo **ppTypeInfo); +static long ole_search_event_at(VALUE ary, VALUE ev); +static VALUE ole_search_event(VALUE ary, VALUE ev, BOOL *is_default); +static VALUE ole_search_handler_method(VALUE handler, VALUE ev, BOOL *is_default_handler); +static void ole_delete_event(VALUE ary, VALUE ev); +static void ole_event_free(struct oleeventdata *poleev); +static VALUE fev_s_allocate(VALUE klass); +static VALUE ev_advise(int argc, VALUE *argv, VALUE self); +static VALUE fev_initialize(int argc, VALUE *argv, VALUE self); +static void ole_msg_loop(void); +static VALUE fev_s_msg_loop(VALUE klass); +static void add_event_call_back(VALUE obj, VALUE event, VALUE data); +static VALUE ev_on_event(int argc, VALUE *argv, VALUE self, VALUE is_ary_arg); +static VALUE fev_on_event(int argc, VALUE *argv, VALUE self); +static VALUE fev_on_event_with_outargs(int argc, VALUE *argv, VALUE self); +static VALUE fev_off_event(int argc, VALUE *argv, VALUE self); +static VALUE fev_unadvise(VALUE self); +static VALUE fev_set_handler(VALUE self, VALUE val); +static VALUE fev_get_handler(VALUE self); +static VALUE evs_push(VALUE ev); +static VALUE evs_delete(long i); +static VALUE evs_entry(long i); +static VALUE evs_length(void); + +STDMETHODIMP EVENTSINK_Invoke( + PEVENTSINK pEventSink, + DISPID dispid, + REFIID riid, + LCID lcid, + WORD wFlags, + DISPPARAMS *pdispparams, + VARIANT *pvarResult, + EXCEPINFO *pexcepinfo, + UINT *puArgErr + ) { + + HRESULT hr; + BSTR bstr; + unsigned int count; + unsigned int i; + ITypeInfo *pTypeInfo; + VARIANT *pvar; + VALUE ary, obj, event, args, outargv, ev, result; + VALUE handler = Qnil; + VALUE arg[3]; + VALUE mid; + VALUE is_outarg = Qfalse; + BOOL is_default_handler = FALSE; + int state; + + PIEVENTSINKOBJ pEV = (PIEVENTSINKOBJ)pEventSink; + pTypeInfo = pEV->pTypeInfo; + obj = evs_entry(pEV->m_event_id); + if (!rb_obj_is_kind_of(obj, cWIN32OLE_EVENT)) { + return NOERROR; + } + + ary = rb_ivar_get(obj, id_events); + if (NIL_P(ary) || !RB_TYPE_P(ary, T_ARRAY)) { + return NOERROR; + } + hr = pTypeInfo->lpVtbl->GetNames(pTypeInfo, dispid, + &bstr, 1, &count); + if (FAILED(hr)) { + return NOERROR; + } + ev = WC2VSTR(bstr); + event = ole_search_event(ary, ev, &is_default_handler); + if (RB_TYPE_P(event, T_ARRAY)) { + handler = rb_ary_entry(event, 0); + mid = rb_intern("call"); + is_outarg = rb_ary_entry(event, 3); + } else { + handler = rb_ivar_get(obj, rb_intern("handler")); + if (handler == Qnil) { + return NOERROR; + } + mid = ole_search_handler_method(handler, ev, &is_default_handler); + } + if (handler == Qnil || mid == Qnil) { + return NOERROR; + } + + args = rb_ary_new(); + if (is_default_handler) { + rb_ary_push(args, ev); + } + + /* make argument of event handler */ + for (i = 0; i < pdispparams->cArgs; ++i) { + pvar = &pdispparams->rgvarg[pdispparams->cArgs-i-1]; + rb_ary_push(args, ole_variant2val(pvar)); + } + outargv = Qnil; + if (is_outarg == Qtrue) { + outargv = rb_ary_new(); + rb_ary_push(args, outargv); + } + + /* + * if exception raised in event callback, + * then you receive cfp consistency error. + * to avoid this error we use begin rescue end. + * and the exception raised then error message print + * and exit ruby process by Win32OLE itself. + */ + arg[0] = handler; + arg[1] = mid; + arg[2] = args; + result = rb_protect(exec_callback, (VALUE)arg, &state); + if (state != 0) { + rescue_callback(Qnil); + } + if(RB_TYPE_P(result, T_HASH)) { + hash2ptr_dispparams(result, pTypeInfo, dispid, pdispparams); + result = hash2result(result); + }else if (is_outarg == Qtrue && RB_TYPE_P(outargv, T_ARRAY)) { + ary2ptr_dispparams(outargv, pdispparams); + } + + if (pvarResult) { + VariantInit(pvarResult); + ole_val2variant(result, pvarResult); + } + + return NOERROR; +} + +STDMETHODIMP +EVENTSINK_QueryInterface( + PEVENTSINK pEV, + REFIID iid, + LPVOID* ppv + ) { + if (IsEqualIID(iid, &IID_IUnknown) || + IsEqualIID(iid, &IID_IDispatch) || + IsEqualIID(iid, &((PIEVENTSINKOBJ)pEV)->m_iid)) { + *ppv = pEV; + } + else { + *ppv = NULL; + return E_NOINTERFACE; + } + ((LPUNKNOWN)*ppv)->lpVtbl->AddRef((LPUNKNOWN)*ppv); + return NOERROR; +} + +STDMETHODIMP_(ULONG) +EVENTSINK_AddRef( + PEVENTSINK pEV + ){ + PIEVENTSINKOBJ pEVObj = (PIEVENTSINKOBJ)pEV; + return ++pEVObj->m_cRef; +} + +STDMETHODIMP_(ULONG) EVENTSINK_Release( + PEVENTSINK pEV + ) { + PIEVENTSINKOBJ pEVObj = (PIEVENTSINKOBJ)pEV; + --pEVObj->m_cRef; + if(pEVObj->m_cRef != 0) + return pEVObj->m_cRef; + EVENTSINK_Destructor(pEVObj); + return 0; +} + +STDMETHODIMP EVENTSINK_GetTypeInfoCount( + PEVENTSINK pEV, + UINT *pct + ) { + *pct = 0; + return NOERROR; +} + +STDMETHODIMP EVENTSINK_GetTypeInfo( + PEVENTSINK pEV, + UINT info, + LCID lcid, + ITypeInfo **pInfo + ) { + *pInfo = NULL; + return DISP_E_BADINDEX; +} + +STDMETHODIMP EVENTSINK_GetIDsOfNames( + PEVENTSINK pEventSink, + REFIID riid, + OLECHAR **szNames, + UINT cNames, + LCID lcid, + DISPID *pDispID + ) { + ITypeInfo *pTypeInfo; + PIEVENTSINKOBJ pEV = (PIEVENTSINKOBJ)pEventSink; + pTypeInfo = pEV->pTypeInfo; + if (pTypeInfo) { + return pTypeInfo->lpVtbl->GetIDsOfNames(pTypeInfo, szNames, cNames, pDispID); + } + return DISP_E_UNKNOWNNAME; +} + +PIEVENTSINKOBJ +EVENTSINK_Constructor() { + PIEVENTSINKOBJ pEv; + if (!g_IsEventSinkVtblInitialized) { + vtEventSink.QueryInterface=EVENTSINK_QueryInterface; + vtEventSink.AddRef = EVENTSINK_AddRef; + vtEventSink.Release = EVENTSINK_Release; + vtEventSink.Invoke = EVENTSINK_Invoke; + vtEventSink.GetIDsOfNames = EVENTSINK_GetIDsOfNames; + vtEventSink.GetTypeInfoCount = EVENTSINK_GetTypeInfoCount; + vtEventSink.GetTypeInfo = EVENTSINK_GetTypeInfo; + + g_IsEventSinkVtblInitialized = TRUE; + } + pEv = ALLOC_N(IEVENTSINKOBJ, 1); + if(pEv == NULL) return NULL; + pEv->lpVtbl = &vtEventSink; + pEv->m_cRef = 0; + pEv->m_event_id = 0; + pEv->pTypeInfo = NULL; + return pEv; +} + +void +EVENTSINK_Destructor( + PIEVENTSINKOBJ pEVObj + ) { + if(pEVObj != NULL) { + OLE_RELEASE(pEVObj->pTypeInfo); + free(pEVObj); + pEVObj = NULL; + } +} + +static void +ole_val2ptr_variant(VALUE val, VARIANT *var) +{ + switch (TYPE(val)) { + case T_STRING: + if (V_VT(var) == (VT_BSTR | VT_BYREF)) { + *V_BSTRREF(var) = ole_vstr2wc(val); + } + break; + case T_FIXNUM: + switch(V_VT(var)) { + case (VT_UI1 | VT_BYREF) : + *V_UI1REF(var) = NUM2CHR(val); + break; + case (VT_I2 | VT_BYREF) : + *V_I2REF(var) = (short)NUM2INT(val); + break; + case (VT_I4 | VT_BYREF) : + *V_I4REF(var) = NUM2INT(val); + break; + case (VT_R4 | VT_BYREF) : + *V_R4REF(var) = (float)NUM2INT(val); + break; + case (VT_R8 | VT_BYREF) : + *V_R8REF(var) = NUM2INT(val); + break; + default: + break; + } + break; + case T_FLOAT: + switch(V_VT(var)) { + case (VT_I2 | VT_BYREF) : + *V_I2REF(var) = (short)NUM2INT(val); + break; + case (VT_I4 | VT_BYREF) : + *V_I4REF(var) = NUM2INT(val); + break; + case (VT_R4 | VT_BYREF) : + *V_R4REF(var) = (float)NUM2DBL(val); + break; + case (VT_R8 | VT_BYREF) : + *V_R8REF(var) = NUM2DBL(val); + break; + default: + break; + } + break; + case T_BIGNUM: + if (V_VT(var) == (VT_R8 | VT_BYREF)) { + *V_R8REF(var) = rb_big2dbl(val); + } + break; + case T_TRUE: + if (V_VT(var) == (VT_BOOL | VT_BYREF)) { + *V_BOOLREF(var) = VARIANT_TRUE; + } + break; + case T_FALSE: + if (V_VT(var) == (VT_BOOL | VT_BYREF)) { + *V_BOOLREF(var) = VARIANT_FALSE; + } + break; + default: + break; + } +} + +static void +hash2ptr_dispparams(VALUE hash, ITypeInfo *pTypeInfo, DISPID dispid, DISPPARAMS *pdispparams) +{ + BSTR *bstrs; + HRESULT hr; + UINT len, i; + VARIANT *pvar; + VALUE val; + VALUE key; + len = 0; + bstrs = ALLOCA_N(BSTR, pdispparams->cArgs + 1); + hr = pTypeInfo->lpVtbl->GetNames(pTypeInfo, dispid, + bstrs, pdispparams->cArgs + 1, + &len); + if (FAILED(hr)) + return; + + for (i = 0; i < len - 1; i++) { + key = WC2VSTR(bstrs[i + 1]); + val = rb_hash_aref(hash, INT2FIX(i)); + if (val == Qnil) + val = rb_hash_aref(hash, key); + if (val == Qnil) + val = rb_hash_aref(hash, rb_str_intern(key)); + pvar = &pdispparams->rgvarg[pdispparams->cArgs-i-1]; + ole_val2ptr_variant(val, pvar); + } +} + +static VALUE +hash2result(VALUE hash) +{ + VALUE ret = Qnil; + ret = rb_hash_aref(hash, rb_str_new2("return")); + if (ret == Qnil) + ret = rb_hash_aref(hash, rb_str_intern(rb_str_new2("return"))); + return ret; +} + +static void +ary2ptr_dispparams(VALUE ary, DISPPARAMS *pdispparams) +{ + int i; + VALUE v; + VARIANT *pvar; + for(i = 0; i < RARRAY_LEN(ary) && (unsigned int) i < pdispparams->cArgs; i++) { + v = rb_ary_entry(ary, i); + pvar = &pdispparams->rgvarg[pdispparams->cArgs-i-1]; + ole_val2ptr_variant(v, pvar); + } +} + +static VALUE +exec_callback(VALUE arg) +{ + VALUE *parg = (VALUE *)arg; + VALUE handler = parg[0]; + VALUE mid = parg[1]; + VALUE args = parg[2]; + return rb_apply(handler, mid, args); +} + +static VALUE +rescue_callback(VALUE arg) +{ + + VALUE error; + VALUE e = rb_errinfo(); + VALUE bt = rb_funcall(e, rb_intern("backtrace"), 0); + VALUE msg = rb_funcall(e, rb_intern("message"), 0); + bt = rb_ary_entry(bt, 0); + error = rb_sprintf("%"PRIsVALUE": %"PRIsVALUE" (%s)\n", bt, msg, rb_obj_classname(e)); + rb_write_error(StringValuePtr(error)); + rb_backtrace(); + ruby_finalize(); + exit(-1); + + return Qnil; +} + +static HRESULT +find_iid(VALUE ole, char *pitf, IID *piid, ITypeInfo **ppTypeInfo) +{ + HRESULT hr; + IDispatch *pDispatch; + ITypeInfo *pTypeInfo; + ITypeLib *pTypeLib; + TYPEATTR *pTypeAttr; + HREFTYPE RefType; + ITypeInfo *pImplTypeInfo; + TYPEATTR *pImplTypeAttr; + + struct oledata *pole; + unsigned int index; + unsigned int count; + int type; + BSTR bstr; + char *pstr; + + BOOL is_found = FALSE; + LCID lcid = cWIN32OLE_lcid; + + OLEData_Get_Struct(ole, pole); + + pDispatch = pole->pDispatch; + + hr = pDispatch->lpVtbl->GetTypeInfo(pDispatch, 0, lcid, &pTypeInfo); + if (FAILED(hr)) + return hr; + + hr = pTypeInfo->lpVtbl->GetContainingTypeLib(pTypeInfo, + &pTypeLib, + &index); + OLE_RELEASE(pTypeInfo); + if (FAILED(hr)) + return hr; + + if (!pitf) { + hr = pTypeLib->lpVtbl->GetTypeInfoOfGuid(pTypeLib, + piid, + ppTypeInfo); + OLE_RELEASE(pTypeLib); + return hr; + } + count = pTypeLib->lpVtbl->GetTypeInfoCount(pTypeLib); + for (index = 0; index < count; index++) { + hr = pTypeLib->lpVtbl->GetTypeInfo(pTypeLib, + index, + &pTypeInfo); + if (FAILED(hr)) + break; + hr = OLE_GET_TYPEATTR(pTypeInfo, &pTypeAttr); + + if(FAILED(hr)) { + OLE_RELEASE(pTypeInfo); + break; + } + if(pTypeAttr->typekind == TKIND_COCLASS) { + for (type = 0; type < pTypeAttr->cImplTypes; type++) { + hr = pTypeInfo->lpVtbl->GetRefTypeOfImplType(pTypeInfo, + type, + &RefType); + if (FAILED(hr)) + break; + hr = pTypeInfo->lpVtbl->GetRefTypeInfo(pTypeInfo, + RefType, + &pImplTypeInfo); + if (FAILED(hr)) + break; + + hr = pImplTypeInfo->lpVtbl->GetDocumentation(pImplTypeInfo, + -1, + &bstr, + NULL, NULL, NULL); + if (FAILED(hr)) { + OLE_RELEASE(pImplTypeInfo); + break; + } + pstr = ole_wc2mb(bstr); + if (strcmp(pitf, pstr) == 0) { + hr = pImplTypeInfo->lpVtbl->GetTypeAttr(pImplTypeInfo, + &pImplTypeAttr); + if (SUCCEEDED(hr)) { + is_found = TRUE; + *piid = pImplTypeAttr->guid; + if (ppTypeInfo) { + *ppTypeInfo = pImplTypeInfo; + (*ppTypeInfo)->lpVtbl->AddRef((*ppTypeInfo)); + } + pImplTypeInfo->lpVtbl->ReleaseTypeAttr(pImplTypeInfo, + pImplTypeAttr); + } + } + free(pstr); + OLE_RELEASE(pImplTypeInfo); + if (is_found || FAILED(hr)) + break; + } + } + + OLE_RELEASE_TYPEATTR(pTypeInfo, pTypeAttr); + OLE_RELEASE(pTypeInfo); + if (is_found || FAILED(hr)) + break; + } + OLE_RELEASE(pTypeLib); + if(!is_found) + return E_NOINTERFACE; + return hr; +} + +static HRESULT +find_coclass( + ITypeInfo *pTypeInfo, + TYPEATTR *pTypeAttr, + ITypeInfo **pCOTypeInfo, + TYPEATTR **pCOTypeAttr) +{ + HRESULT hr = E_NOINTERFACE; + ITypeLib *pTypeLib; + int count; + BOOL found = FALSE; + ITypeInfo *pTypeInfo2; + TYPEATTR *pTypeAttr2; + int flags; + int i,j; + HREFTYPE href; + ITypeInfo *pRefTypeInfo; + TYPEATTR *pRefTypeAttr; + + hr = pTypeInfo->lpVtbl->GetContainingTypeLib(pTypeInfo, &pTypeLib, NULL); + if (FAILED(hr)) { + return hr; + } + count = pTypeLib->lpVtbl->GetTypeInfoCount(pTypeLib); + for (i = 0; i < count && !found; i++) { + hr = pTypeLib->lpVtbl->GetTypeInfo(pTypeLib, i, &pTypeInfo2); + if (FAILED(hr)) + continue; + hr = OLE_GET_TYPEATTR(pTypeInfo2, &pTypeAttr2); + if (FAILED(hr)) { + OLE_RELEASE(pTypeInfo2); + continue; + } + if (pTypeAttr2->typekind != TKIND_COCLASS) { + OLE_RELEASE_TYPEATTR(pTypeInfo2, pTypeAttr2); + OLE_RELEASE(pTypeInfo2); + continue; + } + for (j = 0; j < pTypeAttr2->cImplTypes && !found; j++) { + hr = pTypeInfo2->lpVtbl->GetImplTypeFlags(pTypeInfo2, j, &flags); + if (FAILED(hr)) + continue; + if (!(flags & IMPLTYPEFLAG_FDEFAULT)) + continue; + hr = pTypeInfo2->lpVtbl->GetRefTypeOfImplType(pTypeInfo2, j, &href); + if (FAILED(hr)) + continue; + hr = pTypeInfo2->lpVtbl->GetRefTypeInfo(pTypeInfo2, href, &pRefTypeInfo); + if (FAILED(hr)) + continue; + hr = OLE_GET_TYPEATTR(pRefTypeInfo, &pRefTypeAttr); + if (FAILED(hr)) { + OLE_RELEASE(pRefTypeInfo); + continue; + } + if (IsEqualGUID(&(pTypeAttr->guid), &(pRefTypeAttr->guid))) { + found = TRUE; + } + } + if (!found) { + OLE_RELEASE_TYPEATTR(pTypeInfo2, pTypeAttr2); + OLE_RELEASE(pTypeInfo2); + } + } + OLE_RELEASE(pTypeLib); + if (found) { + *pCOTypeInfo = pTypeInfo2; + *pCOTypeAttr = pTypeAttr2; + hr = S_OK; + } else { + hr = E_NOINTERFACE; + } + return hr; +} + +static HRESULT +find_default_source_from_typeinfo( + ITypeInfo *pTypeInfo, + TYPEATTR *pTypeAttr, + ITypeInfo **ppTypeInfo) +{ + int i = 0; + HRESULT hr = E_NOINTERFACE; + int flags; + HREFTYPE hRefType; + /* Enumerate all implemented types of the COCLASS */ + for (i = 0; i < pTypeAttr->cImplTypes; i++) { + hr = pTypeInfo->lpVtbl->GetImplTypeFlags(pTypeInfo, i, &flags); + if (FAILED(hr)) + continue; + + /* + looking for the [default] [source] + we just hope that it is a dispinterface :-) + */ + if ((flags & IMPLTYPEFLAG_FDEFAULT) && + (flags & IMPLTYPEFLAG_FSOURCE)) { + + hr = pTypeInfo->lpVtbl->GetRefTypeOfImplType(pTypeInfo, + i, &hRefType); + if (FAILED(hr)) + continue; + hr = pTypeInfo->lpVtbl->GetRefTypeInfo(pTypeInfo, + hRefType, ppTypeInfo); + if (SUCCEEDED(hr)) + break; + } + } + return hr; +} + +static HRESULT +find_default_source(VALUE ole, IID *piid, ITypeInfo **ppTypeInfo) +{ + HRESULT hr; + IProvideClassInfo2 *pProvideClassInfo2; + IProvideClassInfo *pProvideClassInfo; + void *p; + + IDispatch *pDispatch; + ITypeInfo *pTypeInfo; + ITypeInfo *pTypeInfo2 = NULL; + TYPEATTR *pTypeAttr; + TYPEATTR *pTypeAttr2 = NULL; + + struct oledata *pole; + + OLEData_Get_Struct(ole, pole); + pDispatch = pole->pDispatch; + hr = pDispatch->lpVtbl->QueryInterface(pDispatch, + &IID_IProvideClassInfo2, + &p); + if (SUCCEEDED(hr)) { + pProvideClassInfo2 = p; + hr = pProvideClassInfo2->lpVtbl->GetGUID(pProvideClassInfo2, + GUIDKIND_DEFAULT_SOURCE_DISP_IID, + piid); + OLE_RELEASE(pProvideClassInfo2); + if (SUCCEEDED(hr)) { + hr = find_iid(ole, NULL, piid, ppTypeInfo); + } + } + if (SUCCEEDED(hr)) { + return hr; + } + hr = pDispatch->lpVtbl->QueryInterface(pDispatch, + &IID_IProvideClassInfo, + &p); + if (SUCCEEDED(hr)) { + pProvideClassInfo = p; + hr = pProvideClassInfo->lpVtbl->GetClassInfo(pProvideClassInfo, + &pTypeInfo); + OLE_RELEASE(pProvideClassInfo); + } + if (FAILED(hr)) { + hr = pDispatch->lpVtbl->GetTypeInfo(pDispatch, 0, cWIN32OLE_lcid, &pTypeInfo ); + } + if (FAILED(hr)) + return hr; + hr = OLE_GET_TYPEATTR(pTypeInfo, &pTypeAttr); + if (FAILED(hr)) { + OLE_RELEASE(pTypeInfo); + return hr; + } + + *ppTypeInfo = 0; + hr = find_default_source_from_typeinfo(pTypeInfo, pTypeAttr, ppTypeInfo); + if (!*ppTypeInfo) { + hr = find_coclass(pTypeInfo, pTypeAttr, &pTypeInfo2, &pTypeAttr2); + if (SUCCEEDED(hr)) { + hr = find_default_source_from_typeinfo(pTypeInfo2, pTypeAttr2, ppTypeInfo); + OLE_RELEASE_TYPEATTR(pTypeInfo2, pTypeAttr2); + OLE_RELEASE(pTypeInfo2); + } + } + OLE_RELEASE_TYPEATTR(pTypeInfo, pTypeAttr); + OLE_RELEASE(pTypeInfo); + /* Now that would be a bad surprise, if we didn't find it, wouldn't it? */ + if (!*ppTypeInfo) { + if (SUCCEEDED(hr)) + hr = E_UNEXPECTED; + return hr; + } + + /* Determine IID of default source interface */ + hr = (*ppTypeInfo)->lpVtbl->GetTypeAttr(*ppTypeInfo, &pTypeAttr); + if (SUCCEEDED(hr)) { + *piid = pTypeAttr->guid; + (*ppTypeInfo)->lpVtbl->ReleaseTypeAttr(*ppTypeInfo, pTypeAttr); + } + else + OLE_RELEASE(*ppTypeInfo); + + return hr; +} + +static long +ole_search_event_at(VALUE ary, VALUE ev) +{ + VALUE event; + VALUE event_name; + long i, len; + long ret = -1; + len = RARRAY_LEN(ary); + for(i = 0; i < len; i++) { + event = rb_ary_entry(ary, i); + event_name = rb_ary_entry(event, 1); + if(NIL_P(event_name) && NIL_P(ev)) { + ret = i; + break; + } + else if (RB_TYPE_P(ev, T_STRING) && + RB_TYPE_P(event_name, T_STRING) && + rb_str_cmp(ev, event_name) == 0) { + ret = i; + break; + } + } + return ret; +} + +static VALUE +ole_search_event(VALUE ary, VALUE ev, BOOL *is_default) +{ + VALUE event; + VALUE def_event; + VALUE event_name; + int i, len; + *is_default = FALSE; + def_event = Qnil; + len = RARRAY_LEN(ary); + for(i = 0; i < len; i++) { + event = rb_ary_entry(ary, i); + event_name = rb_ary_entry(event, 1); + if(NIL_P(event_name)) { + *is_default = TRUE; + def_event = event; + } + else if (rb_str_cmp(ev, event_name) == 0) { + *is_default = FALSE; + return event; + } + } + return def_event; +} + +static VALUE +ole_search_handler_method(VALUE handler, VALUE ev, BOOL *is_default_handler) +{ + VALUE mid; + + *is_default_handler = FALSE; + mid = rb_to_id(rb_sprintf("on%"PRIsVALUE, ev)); + if (rb_respond_to(handler, mid)) { + return mid; + } + mid = rb_intern("method_missing"); + if (rb_respond_to(handler, mid)) { + *is_default_handler = TRUE; + return mid; + } + return Qnil; +} + +static void +ole_delete_event(VALUE ary, VALUE ev) +{ + long at = -1; + at = ole_search_event_at(ary, ev); + if (at >= 0) { + rb_ary_delete_at(ary, at); + } +} + + +static void +ole_event_free(struct oleeventdata *poleev) +{ + if (poleev->pConnectionPoint) { + poleev->pConnectionPoint->lpVtbl->Unadvise(poleev->pConnectionPoint, poleev->dwCookie); + OLE_RELEASE(poleev->pConnectionPoint); + poleev->pConnectionPoint = NULL; + } + free(poleev); +} + +static VALUE +fev_s_allocate(VALUE klass) +{ + VALUE obj; + struct oleeventdata *poleev; + obj = Data_Make_Struct(klass,struct oleeventdata,0,ole_event_free,poleev); + poleev->dwCookie = 0; + poleev->pConnectionPoint = NULL; + poleev->event_id = 0; + return obj; +} + +static VALUE +ev_advise(int argc, VALUE *argv, VALUE self) +{ + + VALUE ole, itf; + struct oledata *pole; + char *pitf; + HRESULT hr; + IID iid; + ITypeInfo *pTypeInfo = 0; + IDispatch *pDispatch; + IConnectionPointContainer *pContainer; + IConnectionPoint *pConnectionPoint; + IEVENTSINKOBJ *pIEV; + DWORD dwCookie; + struct oleeventdata *poleev; + void *p; + + rb_scan_args(argc, argv, "11", &ole, &itf); + + if (!rb_obj_is_kind_of(ole, cWIN32OLE)) { + rb_raise(rb_eTypeError, "1st parameter must be WIN32OLE object"); + } + + if(!RB_TYPE_P(itf, T_NIL)) { + if (rb_safe_level() > 0 && OBJ_TAINTED(itf)) { + rb_raise(rb_eSecurityError, "Insecure Event Creation - %s", + StringValuePtr(itf)); + } + SafeStringValue(itf); + pitf = StringValuePtr(itf); + hr = find_iid(ole, pitf, &iid, &pTypeInfo); + } + else { + hr = find_default_source(ole, &iid, &pTypeInfo); + } + if (FAILED(hr)) { + ole_raise(hr, rb_eRuntimeError, "interface not found"); + } + + OLEData_Get_Struct(ole, pole); + pDispatch = pole->pDispatch; + hr = pDispatch->lpVtbl->QueryInterface(pDispatch, + &IID_IConnectionPointContainer, + &p); + if (FAILED(hr)) { + OLE_RELEASE(pTypeInfo); + ole_raise(hr, rb_eRuntimeError, + "failed to query IConnectionPointContainer"); + } + pContainer = p; + + hr = pContainer->lpVtbl->FindConnectionPoint(pContainer, + &iid, + &pConnectionPoint); + OLE_RELEASE(pContainer); + if (FAILED(hr)) { + OLE_RELEASE(pTypeInfo); + ole_raise(hr, rb_eRuntimeError, "failed to query IConnectionPoint"); + } + pIEV = EVENTSINK_Constructor(); + pIEV->m_iid = iid; + hr = pConnectionPoint->lpVtbl->Advise(pConnectionPoint, + (IUnknown*)pIEV, + &dwCookie); + if (FAILED(hr)) { + ole_raise(hr, rb_eRuntimeError, "Advise Error"); + } + + Data_Get_Struct(self, struct oleeventdata, poleev); + pIEV->m_event_id + = NUM2INT(evs_length()); + pIEV->pTypeInfo = pTypeInfo; + poleev->dwCookie = dwCookie; + poleev->pConnectionPoint = pConnectionPoint; + poleev->event_id = pIEV->m_event_id; + + return self; +} + +/* + * call-seq: + * WIN32OLE_EVENT.new(ole, event) #=> WIN32OLE_EVENT object. + * + * Returns OLE event object. + * The first argument specifies WIN32OLE object. + * The second argument specifies OLE event name. + * ie = WIN32OLE.new('InternetExplorer.Application') + * ev = WIN32OLE_EVENT.new(ie, 'DWebBrowserEvents') + */ +static VALUE +fev_initialize(int argc, VALUE *argv, VALUE self) +{ + ev_advise(argc, argv, self); + evs_push(self); + rb_ivar_set(self, id_events, rb_ary_new()); + fev_set_handler(self, Qnil); + return self; +} + +static void +ole_msg_loop() { + MSG msg; + while(PeekMessage(&msg,NULL,0,0,PM_REMOVE)) { + TranslateMessage(&msg); + DispatchMessage(&msg); + } +} + +/* + * call-seq: + * WIN32OLE_EVENT.message_loop + * + * Translates and dispatches Windows message. + */ +static VALUE +fev_s_msg_loop(VALUE klass) +{ + ole_msg_loop(); + return Qnil; +} + +static void +add_event_call_back(VALUE obj, VALUE event, VALUE data) +{ + VALUE events = rb_ivar_get(obj, id_events); + if (NIL_P(events) || !RB_TYPE_P(events, T_ARRAY)) { + events = rb_ary_new(); + rb_ivar_set(obj, id_events, events); + } + ole_delete_event(events, event); + rb_ary_push(events, data); +} + +static VALUE +ev_on_event(int argc, VALUE *argv, VALUE self, VALUE is_ary_arg) +{ + struct oleeventdata *poleev; + VALUE event, args, data; + Data_Get_Struct(self, struct oleeventdata, poleev); + if (poleev->pConnectionPoint == NULL) { + rb_raise(eWIN32OLERuntimeError, "IConnectionPoint not found. You must call advise at first."); + } + rb_scan_args(argc, argv, "01*", &event, &args); + if(!NIL_P(event)) { + if(!RB_TYPE_P(event, T_STRING) && !RB_TYPE_P(event, T_SYMBOL)) { + rb_raise(rb_eTypeError, "wrong argument type (expected String or Symbol)"); + } + if (RB_TYPE_P(event, T_SYMBOL)) { + event = rb_sym_to_s(event); + } + } + data = rb_ary_new3(4, rb_block_proc(), event, args, is_ary_arg); + add_event_call_back(self, event, data); + return Qnil; +} + +/* + * call-seq: + * WIN32OLE_EVENT#on_event([event]){...} + * + * Defines the callback event. + * If argument is omitted, this method defines the callback of all events. + * If you want to modify reference argument in callback, return hash in + * callback. If you want to return value to OLE server as result of callback + * use `return' or :return. + * + * ie = WIN32OLE.new('InternetExplorer.Application') + * ev = WIN32OLE_EVENT.new(ie) + * ev.on_event("NavigateComplete") {|url| puts url} + * ev.on_event() {|ev, *args| puts "#{ev} fired"} + * + * ev.on_event("BeforeNavigate2") {|*args| + * ... + * # set true to BeforeNavigate reference argument `Cancel'. + * # Cancel is 7-th argument of BeforeNavigate, + * # so you can use 6 as key of hash instead of 'Cancel'. + * # The argument is counted from 0. + * # The hash key of 0 means first argument.) + * {:Cancel => true} # or {'Cancel' => true} or {6 => true} + * } + * + * ev.on_event(...) {|*args| + * {:return => 1, :xxx => yyy} + * } + */ +static VALUE +fev_on_event(int argc, VALUE *argv, VALUE self) +{ + return ev_on_event(argc, argv, self, Qfalse); +} + +/* + * call-seq: + * WIN32OLE_EVENT#on_event_with_outargs([event]){...} + * + * Defines the callback of event. + * If you want modify argument in callback, + * you could use this method instead of WIN32OLE_EVENT#on_event. + * + * ie = WIN32OLE.new('InternetExplorer.Application') + * ev = WIN32OLE_EVENT.new(ie) + * ev.on_event_with_outargs('BeforeNavigate2') {|*args| + * args.last[6] = true + * } + */ +static VALUE +fev_on_event_with_outargs(int argc, VALUE *argv, VALUE self) +{ + return ev_on_event(argc, argv, self, Qtrue); +} + +/* + * call-seq: + * WIN32OLE_EVENT#off_event([event]) + * + * removes the callback of event. + * + * ie = WIN32OLE.new('InternetExplorer.Application') + * ev = WIN32OLE_EVENT.new(ie) + * ev.on_event('BeforeNavigate2') {|*args| + * args.last[6] = true + * } + * ... + * ev.off_event('BeforeNavigate2') + * ... + */ +static VALUE +fev_off_event(int argc, VALUE *argv, VALUE self) +{ + VALUE event = Qnil; + VALUE events; + + rb_scan_args(argc, argv, "01", &event); + if(!NIL_P(event)) { + if(!RB_TYPE_P(event, T_STRING) && !RB_TYPE_P(event, T_SYMBOL)) { + rb_raise(rb_eTypeError, "wrong argument type (expected String or Symbol)"); + } + if (RB_TYPE_P(event, T_SYMBOL)) { + event = rb_sym_to_s(event); + } + } + events = rb_ivar_get(self, id_events); + if (NIL_P(events)) { + return Qnil; + } + ole_delete_event(events, event); + return Qnil; +} + +/* + * call-seq: + * WIN32OLE_EVENT#unadvise -> nil + * + * disconnects OLE server. If this method called, then the WIN32OLE_EVENT object + * does not receive the OLE server event any more. + * This method is trial implementation. + * + * ie = WIN32OLE.new('InternetExplorer.Application') + * ev = WIN32OLE_EVENT.new(ie) + * ev.on_event() {...} + * ... + * ev.unadvise + * + */ +static VALUE +fev_unadvise(VALUE self) +{ + struct oleeventdata *poleev; + Data_Get_Struct(self, struct oleeventdata, poleev); + if (poleev->pConnectionPoint) { + ole_msg_loop(); + evs_delete(poleev->event_id); + poleev->pConnectionPoint->lpVtbl->Unadvise(poleev->pConnectionPoint, poleev->dwCookie); + OLE_RELEASE(poleev->pConnectionPoint); + poleev->pConnectionPoint = NULL; + } + return Qnil; +} + +static VALUE +evs_push(VALUE ev) +{ + return rb_ary_push(ary_ole_event, ev); +} + +static VALUE +evs_delete(long i) +{ + rb_ary_store(ary_ole_event, i, Qnil); + return Qnil; +} + +static VALUE +evs_entry(long i) +{ + return rb_ary_entry(ary_ole_event, i); +} + +static VALUE +evs_length(void) +{ + return rb_funcall(ary_ole_event, rb_intern("length"), 0); +} + +/* + * call-seq: + * WIN32OLE_EVENT#handler= + * + * sets event handler object. If handler object has onXXX + * method according to XXX event, then onXXX method is called + * when XXX event occurs. + * + * If handler object has method_missing and there is no + * method according to the event, then method_missing + * called and 1-st argument is event name. + * + * If handler object has onXXX method and there is block + * defined by WIN32OLE_EVENT#on_event('XXX'){}, + * then block is executed but handler object method is not called + * when XXX event occurs. + * + * class Handler + * def onStatusTextChange(text) + * puts "StatusTextChanged" + * end + * def onPropertyChange(prop) + * puts "PropertyChanged" + * end + * def method_missing(ev, *arg) + * puts "other event #{ev}" + * end + * end + * + * handler = Handler.new + * ie = WIN32OLE.new('InternetExplorer.Application') + * ev = WIN32OLE_EVENT.new(ie) + * ev.on_event("StatusTextChange") {|*args| + * puts "this block executed." + * puts "handler.onStatusTextChange method is not called." + * } + * ev.handler = handler + * + */ +static VALUE +fev_set_handler(VALUE self, VALUE val) +{ + return rb_ivar_set(self, rb_intern("handler"), val); +} + +/* + * call-seq: + * WIN32OLE_EVENT#handler + * + * returns handler object. + * + */ +static VALUE +fev_get_handler(VALUE self) +{ + return rb_ivar_get(self, rb_intern("handler")); +} + +void +Init_win32ole_event() +{ + ary_ole_event = rb_ary_new(); + rb_gc_register_mark_object(ary_ole_event); + id_events = rb_intern("events"); + cWIN32OLE_EVENT = rb_define_class("WIN32OLE_EVENT", rb_cObject); + rb_define_singleton_method(cWIN32OLE_EVENT, "message_loop", fev_s_msg_loop, 0); + rb_define_alloc_func(cWIN32OLE_EVENT, fev_s_allocate); + rb_define_method(cWIN32OLE_EVENT, "initialize", fev_initialize, -1); + rb_define_method(cWIN32OLE_EVENT, "on_event", fev_on_event, -1); + rb_define_method(cWIN32OLE_EVENT, "on_event_with_outargs", fev_on_event_with_outargs, -1); + rb_define_method(cWIN32OLE_EVENT, "off_event", fev_off_event, -1); + rb_define_method(cWIN32OLE_EVENT, "unadvise", fev_unadvise, 0); + rb_define_method(cWIN32OLE_EVENT, "handler=", fev_set_handler, 1); + rb_define_method(cWIN32OLE_EVENT, "handler", fev_get_handler, 0); +} |