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/* GDK - The GIMP Drawing Kit
* Copyright (C) 2019 Руслан Ижбулатов <lrn1986@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#define COBJMACROS
#include <msctf.h>
#include <gdk/gdk.h>
#include "gdkprivate-win32.h"
struct _GdkWin32ALPNSink
{
ITfActiveLanguageProfileNotifySink itf_alpn_sink;
int ref_count;
};
typedef struct _GdkWin32ALPNSink GdkWin32ALPNSink;
static GdkWin32ALPNSink *actlangchangenotify = NULL;
static ITfSource *itf_source = NULL;
static DWORD actlangchangenotify_id = 0;
static ULONG STDMETHODCALLTYPE
alpn_sink_addref (ITfActiveLanguageProfileNotifySink *This)
{
GdkWin32ALPNSink *alpn_sink = (GdkWin32ALPNSink *) This;
int ref_count = ++alpn_sink->ref_count;
return ref_count;
}
static HRESULT STDMETHODCALLTYPE
alpn_sink_queryinterface (ITfActiveLanguageProfileNotifySink *This,
REFIID riid,
LPVOID *ppvObject)
{
*ppvObject = NULL;
if (IsEqualGUID (riid, &IID_IUnknown))
{
ITfActiveLanguageProfileNotifySink_AddRef (This);
*ppvObject = This;
return S_OK;
}
if (IsEqualGUID (riid, &IID_ITfActiveLanguageProfileNotifySink))
{
ITfActiveLanguageProfileNotifySink_AddRef (This);
*ppvObject = This;
return S_OK;
}
return E_NOINTERFACE;
}
static ULONG STDMETHODCALLTYPE
alpn_sink_release (ITfActiveLanguageProfileNotifySink *This)
{
GdkWin32ALPNSink *alpn_sink = (GdkWin32ALPNSink *) This;
int ref_count = --alpn_sink->ref_count;
if (ref_count == 0)
{
g_free (This);
}
return ref_count;
}
static HRESULT STDMETHODCALLTYPE
alpn_sink_on_activated (ITfActiveLanguageProfileNotifySink *This,
REFCLSID clsid,
REFGUID guidProfile,
BOOL fActivated)
{
_gdk_input_locale_is_ime = fActivated;
return S_OK;
}
static ITfActiveLanguageProfileNotifySinkVtbl alpn_sink_vtbl = {
alpn_sink_queryinterface,
alpn_sink_addref,
alpn_sink_release,
alpn_sink_on_activated,
};
static GdkWin32ALPNSink *
alpn_sink_new ()
{
GdkWin32ALPNSink *result;
result = g_new0 (GdkWin32ALPNSink, 1);
result->itf_alpn_sink.lpVtbl = &alpn_sink_vtbl;
result->ref_count = 0;
ITfActiveLanguageProfileNotifySink_AddRef (&result->itf_alpn_sink);
return result;
}
void
_gdk_win32_lang_notification_init ()
{
HRESULT hr;
ITfThreadMgr *itf_threadmgr;
CoInitializeEx (NULL, COINIT_APARTMENTTHREADED);
if (actlangchangenotify != NULL)
return;
hr = CoCreateInstance (&CLSID_TF_ThreadMgr,
NULL,
CLSCTX_INPROC_SERVER,
&IID_ITfThreadMgr,
(LPVOID *) &itf_threadmgr);
if (!SUCCEEDED (hr))
return;
hr = ITfThreadMgr_QueryInterface (itf_threadmgr, &IID_ITfSource, (VOID **) &itf_source);
ITfThreadMgr_Release (itf_threadmgr);
if (!SUCCEEDED (hr))
return;
actlangchangenotify = alpn_sink_new ();
hr = ITfSource_AdviseSink (itf_source,
&IID_ITfActiveLanguageProfileNotifySink,
(IUnknown *) actlangchangenotify,
&actlangchangenotify_id);
if (!SUCCEEDED (hr))
{
ITfActiveLanguageProfileNotifySink_Release (&actlangchangenotify->itf_alpn_sink);
actlangchangenotify = NULL;
ITfSource_Release (itf_source);
itf_source = NULL;
}
}
void
_gdk_win32_lang_notification_exit ()
{
if (actlangchangenotify != NULL && itf_source != NULL)
{
ITfSource_UnadviseSink (itf_source, actlangchangenotify_id);
ITfSource_Release (itf_source);
ITfActiveLanguageProfileNotifySink_Release (&actlangchangenotify->itf_alpn_sink);
}
CoUninitialize ();
}
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