winamp/Src/omBrowser/service.cpp

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2024-09-24 12:54:57 +00:00
#include "./main.h"
#include "./service.h"
#include "./ifc_omservicehost.h"
#include "./ifc_omserviceeventmngr.h"
#include "../winamp/wa_ipc.h"
#include <strsafe.h>
#define DEFAULT_GENERATION 2
#define IS_INVALIDISPATCH(__disp) (((IDispatch *)1) == (__disp) || NULL == (__disp))
OmService::OmService(UINT serviceId, ifc_omservicehost *serviceHost)
: ref(1), id(serviceId), name(NULL), url(NULL), icon(NULL), rating(0), version(0),
flags(0), generation(2), description(NULL), authorFirst(NULL), authorLast(NULL),
published(NULL), updated(NULL), thumbnail(NULL), screenshot(NULL), address(NULL),
host(serviceHost)
{
if (NULL != host)
host->AddRef();
modified.SetEventHandler(ModifiedEvent, (ULONG_PTR)this);
InitializeCriticalSection(&lock);
InitializeCriticalSection(&eventLock);
}
OmService::~OmService()
{
Plugin_FreeString(name);
Plugin_FreeString(url);
Plugin_FreeString(icon);
Plugin_FreeString(address);
Plugin_FreeString(description);
Plugin_FreeString(authorFirst);
Plugin_FreeString(authorLast);
Plugin_FreeString(published);
Plugin_FreeString(updated);
Plugin_FreeString(thumbnail);
Plugin_FreeString(screenshot);
UnregisterAllEventHandlers();
if (NULL != host)
host->Release();
DeleteCriticalSection(&lock);
DeleteCriticalSection(&eventLock);
}
HRESULT OmService::CreateInstance(UINT serviceId, ifc_omservicehost *host, OmService **serviceOut)
{
if (NULL == serviceOut) return E_POINTER;
*serviceOut = new OmService(serviceId, host);
if (NULL == *serviceOut) return E_OUTOFMEMORY;
return S_OK;
}
size_t OmService::AddRef()
{
return InterlockedIncrement((LONG*)&ref);
}
size_t OmService::Release()
{
if (0 == ref)
return ref;
LONG r = InterlockedDecrement((LONG*)&ref);
if (0 == r)
delete(this);
return r;
}
int OmService::QueryInterface(GUID interface_guid, void **object)
{
if (NULL == object) return E_POINTER;
if (IsEqualIID(interface_guid, IFC_OmService))
*object = static_cast<ifc_omservice*>(this);
else if (IsEqualIID(interface_guid, IFC_OmServiceDetails))
*object = static_cast<ifc_omservicedetails*>(this);
else if (IsEqualIID(interface_guid, IFC_OmServiceEditor))
*object = static_cast<ifc_omserviceeditor*>(this);
else if (IsEqualIID(interface_guid, IFC_OmServiceCopier))
*object = static_cast<ifc_omservicecopier*>(this);
else if (IsEqualIID(interface_guid, IFC_OmServiceCommand))
*object = static_cast<ifc_omservicecommand*>(this);
else if (IsEqualIID(interface_guid, IFC_OmServiceEventMngr))
*object = static_cast<ifc_omserviceeventmngr*>(this);
else if (IsEqualIID(interface_guid, IFC_OmServiceHostExt))
*object = static_cast<ifc_omservicehostext*>(this);
else
{
*object = NULL;
return E_NOINTERFACE;
}
if (NULL == *object)
return E_UNEXPECTED;
AddRef();
return S_OK;
}
HRESULT OmService::StringCchCopyExMT(LPTSTR pszDest, size_t cchDest, LPCTSTR pszSrc, LPTSTR *ppszDestEnd, size_t *pcchRemaining, DWORD dwFlags)
{
if (NULL == pszDest)
return E_POINTER;
EnterCriticalSection(&lock);
HRESULT hr = StringCchCopyEx(pszDest, cchDest, pszSrc, ppszDestEnd, pcchRemaining, dwFlags);
LeaveCriticalSection(&lock);
return hr;
}
UINT OmService::GetId()
{
return id;
}
HRESULT OmService::SetId(UINT serviceId)
{
id = serviceId;
return S_OK;
}
HRESULT OmService::GetName(LPWSTR pszBuffer, UINT cchBufferMax)
{
return StringCchCopyExMT(pszBuffer, cchBufferMax, name, NULL, NULL,STRSAFE_IGNORE_NULLS | STRSAFE_NULL_ON_FAILURE);
}
HRESULT OmService::GetUrl(LPWSTR pszBuffer, UINT cchBufferMax)
{
EnterCriticalSection(&lock);
HRESULT hr = GetUrlDirect(pszBuffer, cchBufferMax);
if(SUCCEEDED(hr))
{
if (NULL != host)
{
HRESULT hostResult = host->GetUrl(this, pszBuffer, cchBufferMax);
if (FAILED(hostResult) && E_NOTIMPL != hostResult)
hr = hostResult;
}
}
LeaveCriticalSection(&lock);
return hr;
}
HRESULT OmService::GetUrlDirect(LPWSTR pszBuffer, UINT cchBufferMax)
{
return StringCchCopyExMT(pszBuffer, cchBufferMax, url, NULL, NULL, STRSAFE_IGNORE_NULLS | STRSAFE_NULL_ON_FAILURE);
}
HRESULT OmService::GetIcon(LPWSTR pszBuffer, UINT cchBufferMax)
{
return StringCchCopyExMT(pszBuffer, cchBufferMax, icon, NULL, NULL, STRSAFE_IGNORE_NULLS | STRSAFE_NULL_ON_FAILURE);
}
HRESULT OmService::GetExternal(IDispatch **ppDispatch)
{
if (NULL == ppDispatch)
return E_POINTER;
*ppDispatch = NULL;
HWND hWinamp = NULL;
IDispatch *winampDisp = NULL;
if (SUCCEEDED(Plugin_GetWinampWnd(&hWinamp)) && NULL != hWinamp)
{
EnterCriticalSection(&lock);
UINT generation_cached = generation;
LeaveCriticalSection(&lock);
if (2 == generation_cached)
{
WCHAR szBuffer[64] = {0};
if (SUCCEEDED(StringCchPrintfW(szBuffer, ARRAYSIZE(szBuffer), L"%u", id)))
winampDisp = (IDispatch*)SENDWAIPC(hWinamp, IPC_JSAPI2_GET_DISPATCH_OBJECT, (WPARAM)szBuffer);
}
else if (1 == generation_cached)
{
winampDisp = (IDispatch*)SENDWAIPC(hWinamp, IPC_GET_DISPATCH_OBJECT, 0);
}
if (IS_INVALIDISPATCH(winampDisp))
winampDisp = NULL;
}
*ppDispatch = winampDisp;
EnterCriticalSection(&lock);
ifc_omservicehost *host_cached = host;
if (NULL != host_cached)
host_cached->AddRef();
LeaveCriticalSection(&lock);
if (NULL != host_cached)
{
host_cached->GetExternal(this, ppDispatch);
host_cached->Release();
}
return S_OK;
}
HRESULT OmService::GetRating(UINT *ratingOut)
{
if (NULL == ratingOut)
return E_POINTER;
*ratingOut = rating;
return S_OK;
}
HRESULT OmService::GetVersion(UINT *versionOut)
{
if (NULL == versionOut)
return E_POINTER;
*versionOut = version;
return S_OK;
}
HRESULT OmService::GetGeneration(UINT *generationOut)
{
if (NULL == generationOut)
return E_POINTER;
EnterCriticalSection(&lock);
*generationOut = (0 == generation) ? DEFAULT_GENERATION : generation;
LeaveCriticalSection(&lock);
return S_OK;
}
HRESULT OmService::GetFlags(UINT *flagsOut)
{
if (NULL == flagsOut)
return E_POINTER;
*flagsOut = flags;
return S_OK;
}
HRESULT OmService::UpdateFlags(UINT flagsIn)
{
flags = flagsIn;
return S_OK;
}
HRESULT OmService::SetAddress(LPCWSTR pszAddress)
{
EnterCriticalSection(&lock);
HRESULT hr;
Plugin_FreeString(address);
if (NULL == pszAddress)
{
address = NULL;
hr = S_OK;
}
else
{
address = Plugin_CopyString(pszAddress);
hr = (NULL == address) ? E_OUTOFMEMORY : S_OK;
}
LeaveCriticalSection(&lock);
return hr;
}
HRESULT OmService::GetAddress(LPWSTR pszBuffer, UINT cchBufferMax)
{
return StringCchCopyExMT(pszBuffer, cchBufferMax, address, NULL, NULL,STRSAFE_IGNORE_NULLS | STRSAFE_NULL_ON_FAILURE);
}
HRESULT OmService::GetHost(ifc_omservicehost **ppHost)
{
if (NULL == ppHost) return E_POINTER;
EnterCriticalSection(&lock);
*ppHost = host;
if (NULL != host)
host->AddRef();
LeaveCriticalSection(&lock);
return S_OK;
}
HRESULT OmService::SetHost(ifc_omservicehost *serviceHost)
{
EnterCriticalSection(&lock);
if (NULL != host)
host->Release();
host = serviceHost;
if (NULL != host)
host->AddRef();
LeaveCriticalSection(&lock);
return S_OK;
}
void CALLBACK OmService::ModifiedEvent(UINT nMark, FlagTracker *instance, ULONG_PTR user)
{
OmService *service = (OmService*)user;
if (NULL == service) return;
service->Signal_ServiceChange(nMark);
}
HRESULT OmService::CopyTo(ifc_omservice *service, UINT *modifiedFlags)
{
if (NULL == service || id != service->GetId())
return E_INVALIDARG;
HRESULT hr;
ifc_omserviceeditor *editor = NULL;
hr = service->QueryInterface(IFC_OmServiceEditor, (void**)&editor);
if (SUCCEEDED(hr) && editor != NULL)
{
editor->BeginUpdate();
if (FAILED(editor->SetName(name, FALSE))) hr = E_FAIL;
if (FAILED(editor->SetUrl(url, FALSE))) hr = E_FAIL;
if (FAILED(editor->SetIcon(icon, FALSE))) hr = E_FAIL;
if (FAILED(editor->SetRating(rating))) hr = E_FAIL;
if (FAILED(editor->SetVersion(version))) hr = E_FAIL;
if (FAILED(editor->SetFlags(flags, 0xFFFFFFFF))) hr = E_FAIL;
if (FAILED(editor->SetDescription(description, FALSE))) hr = E_FAIL;
if (FAILED(editor->SetAuthorFirst(authorFirst, FALSE))) hr = E_FAIL;
if (FAILED(editor->SetAuthorLast(authorLast, FALSE))) hr = E_FAIL;
if (FAILED(editor->SetUpdated(updated, FALSE))) hr = E_FAIL;
if (FAILED(editor->SetPublished(published, FALSE))) hr = E_FAIL;
if (FAILED(editor->SetThumbnail(thumbnail, FALSE))) hr = E_FAIL;
if (FAILED(editor->SetScreenshot(screenshot, FALSE))) hr = E_FAIL;
if (FAILED(editor->SetGeneration(generation))) hr = E_FAIL;
editor->EndUpdate();
if (NULL != modifiedFlags)
editor->GetModified(modifiedFlags);
editor->Release();
}
return hr;
}
HRESULT OmService::QueryState(HWND hBrowser, const GUID *commandGroup, UINT commandId)
{
HRESULT hr;
EnterCriticalSection(&lock);
if (NULL != host)
hr = host->QueryCommandState(this, hBrowser, commandGroup, commandId);
else
hr = E_NOTIMPL;
LeaveCriticalSection(&lock);
return hr;
}
HRESULT OmService::Exec(HWND hBrowser, const GUID *commandGroup, UINT commandId, ULONG_PTR commandArg)
{
HRESULT hr;
EnterCriticalSection(&lock);
if (NULL != host)
hr = host->ExecuteCommand(this, hBrowser, commandGroup, commandId, commandArg);
else
hr = E_NOTIMPL;
LeaveCriticalSection(&lock);
return hr;
}