mirror of
https://github.com/reactos/reactos.git
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630 lines
18 KiB
C
630 lines
18 KiB
C
/*
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* AutoComplete interfaces implementation.
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*
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* Copyright 2004 Maxime Bellengé <maxime.bellenge@laposte.net>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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/*
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Implemented:
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- ACO_AUTOAPPEND style
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- ACO_AUTOSUGGEST style
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- ACO_UPDOWNKEYDROPSLIST style
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- Handle pwzsRegKeyPath and pwszQuickComplete in Init
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TODO:
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- implement ACO_SEARCH style
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- implement ACO_FILTERPREFIXES style
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- implement ACO_USETAB style
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- implement ACO_RTLREADING style
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*/
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#include <precomp.h>
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WINE_DEFAULT_DEBUG_CHANNEL(shell);
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typedef struct
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{
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const IAutoCompleteVtbl *lpVtbl;
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const IAutoComplete2Vtbl *lpvtblAutoComplete2;
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LONG ref;
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BOOL enabled;
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HWND hwndEdit;
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HWND hwndListBox;
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WNDPROC wpOrigEditProc;
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WNDPROC wpOrigLBoxProc;
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WCHAR *txtbackup;
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WCHAR *quickComplete;
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IEnumString *enumstr;
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AUTOCOMPLETEOPTIONS options;
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} IAutoCompleteImpl;
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static const IAutoCompleteVtbl acvt;
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static const IAutoComplete2Vtbl ac2vt;
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static IAutoCompleteImpl * impl_from_IAutoComplete2( IAutoComplete2 *iface )
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{
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return (IAutoCompleteImpl *)((char*)iface - FIELD_OFFSET(IAutoCompleteImpl, lpvtblAutoComplete2));
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}
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/*
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converts This to an interface pointer
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*/
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#define _IUnknown_(This) (IUnknown*)&(This->lpVtbl)
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#define _IAutoComplete2_(This) (IAutoComplete2*)&(This->lpvtblAutoComplete2)
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static LRESULT APIENTRY ACEditSubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
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static LRESULT APIENTRY ACLBoxSubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
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/**************************************************************************
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* IAutoComplete_Constructor
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*/
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HRESULT WINAPI IAutoComplete_Constructor(IUnknown * pUnkOuter, REFIID riid, LPVOID * ppv)
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{
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IAutoCompleteImpl *lpac;
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if (pUnkOuter && !IsEqualIID (riid, &IID_IUnknown))
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return CLASS_E_NOAGGREGATION;
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lpac = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IAutoCompleteImpl));
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if (!lpac)
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return E_OUTOFMEMORY;
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lpac->ref = 1;
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lpac->lpVtbl = &acvt;
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lpac->lpvtblAutoComplete2 = &ac2vt;
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lpac->enabled = TRUE;
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lpac->enumstr = NULL;
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lpac->options = ACO_AUTOAPPEND;
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lpac->wpOrigEditProc = NULL;
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lpac->hwndListBox = NULL;
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lpac->txtbackup = NULL;
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lpac->quickComplete = NULL;
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if (!SUCCEEDED (IUnknown_QueryInterface (_IUnknown_ (lpac), riid, ppv))) {
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IUnknown_Release (_IUnknown_ (lpac));
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return E_NOINTERFACE;
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}
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TRACE("-- (%p)->\n",lpac);
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return S_OK;
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}
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/**************************************************************************
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* AutoComplete_QueryInterface
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*/
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static HRESULT WINAPI IAutoComplete_fnQueryInterface(
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IAutoComplete * iface,
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REFIID riid,
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LPVOID *ppvObj)
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{
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IAutoCompleteImpl *This = (IAutoCompleteImpl *)iface;
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TRACE("(%p)->(\n\tIID:\t%s,%p)\n", This, shdebugstr_guid(riid), ppvObj);
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*ppvObj = NULL;
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if(IsEqualIID(riid, &IID_IUnknown))
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{
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*ppvObj = This;
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}
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else if(IsEqualIID(riid, &IID_IAutoComplete))
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{
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*ppvObj = (IAutoComplete*)This;
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}
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else if(IsEqualIID(riid, &IID_IAutoComplete2))
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{
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*ppvObj = _IAutoComplete2_ (This);
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}
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if (*ppvObj)
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{
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IAutoComplete_AddRef((IAutoComplete*)*ppvObj);
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TRACE("-- Interface: (%p)->(%p)\n", ppvObj, *ppvObj);
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return S_OK;
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}
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TRACE("-- Interface: E_NOINTERFACE\n");
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return E_NOINTERFACE;
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}
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/******************************************************************************
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* IAutoComplete_fnAddRef
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*/
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static ULONG WINAPI IAutoComplete_fnAddRef(
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IAutoComplete * iface)
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{
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IAutoCompleteImpl *This = (IAutoCompleteImpl *)iface;
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ULONG refCount = InterlockedIncrement(&This->ref);
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TRACE("(%p)->(%u)\n", This, refCount - 1);
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return refCount;
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}
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/******************************************************************************
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* IAutoComplete_fnRelease
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*/
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static ULONG WINAPI IAutoComplete_fnRelease(
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IAutoComplete * iface)
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{
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IAutoCompleteImpl *This = (IAutoCompleteImpl *)iface;
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ULONG refCount = InterlockedDecrement(&This->ref);
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TRACE("(%p)->(%u)\n", This, refCount + 1);
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if (!refCount) {
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TRACE(" destroying IAutoComplete(%p)\n",This);
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HeapFree(GetProcessHeap(), 0, This->quickComplete);
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HeapFree(GetProcessHeap(), 0, This->txtbackup);
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if (This->hwndListBox)
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DestroyWindow(This->hwndListBox);
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if (This->enumstr)
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IEnumString_Release(This->enumstr);
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HeapFree(GetProcessHeap(), 0, This);
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}
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return refCount;
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}
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/******************************************************************************
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* IAutoComplete_fnEnable
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*/
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static HRESULT WINAPI IAutoComplete_fnEnable(
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IAutoComplete * iface,
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BOOL fEnable)
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{
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IAutoCompleteImpl *This = (IAutoCompleteImpl *)iface;
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HRESULT hr = S_OK;
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TRACE("(%p)->(%s)\n", This, (fEnable)?"true":"false");
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This->enabled = fEnable;
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return hr;
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}
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/******************************************************************************
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* IAutoComplete_fnInit
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*/
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static HRESULT WINAPI IAutoComplete_fnInit(
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IAutoComplete * iface,
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HWND hwndEdit,
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IUnknown *punkACL,
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LPCOLESTR pwzsRegKeyPath,
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LPCOLESTR pwszQuickComplete)
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{
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IAutoCompleteImpl *This = (IAutoCompleteImpl *)iface;
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static const WCHAR lbName[] = {'L','i','s','t','B','o','x',0};
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TRACE("(%p)->(0x%08lx, %p, %s, %s)\n",
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This, hwndEdit, punkACL, debugstr_w(pwzsRegKeyPath), debugstr_w(pwszQuickComplete));
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if (This->options & ACO_AUTOSUGGEST) TRACE(" ACO_AUTOSUGGEST\n");
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if (This->options & ACO_AUTOAPPEND) TRACE(" ACO_AUTOAPPEND\n");
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if (This->options & ACO_SEARCH) FIXME(" ACO_SEARCH not supported\n");
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if (This->options & ACO_FILTERPREFIXES) FIXME(" ACO_FILTERPREFIXES not supported\n");
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if (This->options & ACO_USETAB) FIXME(" ACO_USETAB not supported\n");
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if (This->options & ACO_UPDOWNKEYDROPSLIST) TRACE(" ACO_UPDOWNKEYDROPSLIST\n");
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if (This->options & ACO_RTLREADING) FIXME(" ACO_RTLREADING not supported\n");
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This->hwndEdit = hwndEdit;
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if (!SUCCEEDED (IUnknown_QueryInterface (punkACL, &IID_IEnumString, (LPVOID*)&This->enumstr))) {
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TRACE("No IEnumString interface\n");
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return E_NOINTERFACE;
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}
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This->wpOrigEditProc = (WNDPROC) SetWindowLongPtrW( hwndEdit, GWLP_WNDPROC, (LONG_PTR) ACEditSubclassProc);
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SetWindowLongPtrW( hwndEdit, GWLP_USERDATA, (LONG_PTR)This);
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if (This->options & ACO_AUTOSUGGEST) {
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HWND hwndParent;
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hwndParent = GetParent(This->hwndEdit);
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/* FIXME : The listbox should be resizable with the mouse. WS_THICKFRAME looks ugly */
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This->hwndListBox = CreateWindowExW(0, lbName, NULL,
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WS_BORDER | WS_CHILD | WS_VSCROLL | LBS_HASSTRINGS | LBS_NOTIFY | LBS_NOINTEGRALHEIGHT,
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CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
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hwndParent, NULL,
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(HINSTANCE)GetWindowLongPtrW( hwndParent, GWLP_HINSTANCE ), NULL);
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if (This->hwndListBox) {
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This->wpOrigLBoxProc = (WNDPROC) SetWindowLongPtrW( This->hwndListBox, GWLP_WNDPROC, (LONG_PTR) ACLBoxSubclassProc);
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SetWindowLongPtrW( This->hwndListBox, GWLP_USERDATA, (LONG_PTR)This);
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}
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}
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if (pwzsRegKeyPath) {
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WCHAR *key;
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WCHAR result[MAX_PATH];
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WCHAR *value;
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HKEY hKey = 0;
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LONG res;
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LONG len;
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/* pwszRegKeyPath contains the key as well as the value, so we split */
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key = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (wcslen(pwzsRegKeyPath)+1)*sizeof(WCHAR));
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wcscpy(key, pwzsRegKeyPath);
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value = strrchrW(key, '\\');
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*value = 0;
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value++;
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/* Now value contains the value and buffer the key */
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res = RegOpenKeyExW(HKEY_CURRENT_USER, key, 0, KEY_READ, &hKey);
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if (res != ERROR_SUCCESS) {
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/* if the key is not found, MSDN states we must seek in HKEY_LOCAL_MACHINE */
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res = RegOpenKeyExW(HKEY_LOCAL_MACHINE, key, 0, KEY_READ, &hKey);
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}
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if (res == ERROR_SUCCESS) {
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res = RegQueryValueW(hKey, value, result, &len);
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if (res == ERROR_SUCCESS) {
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This->quickComplete = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, len*sizeof(WCHAR));
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wcscpy(This->quickComplete, result);
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}
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RegCloseKey(hKey);
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}
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HeapFree(GetProcessHeap(), 0, key);
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}
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if ((pwszQuickComplete) && (!This->quickComplete)) {
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This->quickComplete = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (wcslen(pwszQuickComplete)+1)*sizeof(WCHAR));
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wcscpy(This->quickComplete, pwszQuickComplete);
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}
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return S_OK;
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}
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/**************************************************************************
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* IAutoComplete_fnVTable
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*/
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static const IAutoCompleteVtbl acvt =
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{
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IAutoComplete_fnQueryInterface,
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IAutoComplete_fnAddRef,
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IAutoComplete_fnRelease,
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IAutoComplete_fnInit,
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IAutoComplete_fnEnable,
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};
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/**************************************************************************
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* AutoComplete2_QueryInterface
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*/
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static HRESULT WINAPI IAutoComplete2_fnQueryInterface(
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IAutoComplete2 * iface,
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REFIID riid,
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LPVOID *ppvObj)
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{
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IAutoCompleteImpl *This = impl_from_IAutoComplete2(iface);
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TRACE ("(%p)->(%s,%p)\n", This, shdebugstr_guid (riid), ppvObj);
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return IAutoComplete_QueryInterface((IAutoComplete*)This, riid, ppvObj);
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}
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/******************************************************************************
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* IAutoComplete2_fnAddRef
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*/
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static ULONG WINAPI IAutoComplete2_fnAddRef(
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IAutoComplete2 * iface)
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{
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IAutoCompleteImpl *This = impl_from_IAutoComplete2(iface);
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TRACE ("(%p)->(count=%u)\n", This, This->ref);
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return IAutoComplete2_AddRef((IAutoComplete*)This);
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}
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/******************************************************************************
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* IAutoComplete2_fnRelease
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*/
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static ULONG WINAPI IAutoComplete2_fnRelease(
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IAutoComplete2 * iface)
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{
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IAutoCompleteImpl *This = impl_from_IAutoComplete2(iface);
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TRACE ("(%p)->(count=%u)\n", This, This->ref);
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return IAutoComplete_Release((IAutoComplete*)This);
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}
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/******************************************************************************
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* IAutoComplete2_fnEnable
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*/
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static HRESULT WINAPI IAutoComplete2_fnEnable(
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IAutoComplete2 * iface,
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BOOL fEnable)
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{
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IAutoCompleteImpl *This = impl_from_IAutoComplete2(iface);
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TRACE ("(%p)->(%s)\n", This, (fEnable)?"true":"false");
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return IAutoComplete_Enable((IAutoComplete*)This, fEnable);
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}
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/******************************************************************************
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* IAutoComplete2_fnInit
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*/
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static HRESULT WINAPI IAutoComplete2_fnInit(
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IAutoComplete2 * iface,
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HWND hwndEdit,
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IUnknown *punkACL,
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LPCOLESTR pwzsRegKeyPath,
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LPCOLESTR pwszQuickComplete)
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{
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IAutoCompleteImpl *This = impl_from_IAutoComplete2(iface);
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TRACE("(%p)\n", This);
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return IAutoComplete_Init((IAutoComplete*)This, hwndEdit, punkACL, pwzsRegKeyPath, pwszQuickComplete);
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}
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/**************************************************************************
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* IAutoComplete_fnGetOptions
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*/
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static HRESULT WINAPI IAutoComplete2_fnGetOptions(
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IAutoComplete2 * iface,
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DWORD *pdwFlag)
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{
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HRESULT hr = S_OK;
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IAutoCompleteImpl *This = impl_from_IAutoComplete2(iface);
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TRACE("(%p) -> (%p)\n", This, pdwFlag);
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*pdwFlag = This->options;
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return hr;
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}
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/**************************************************************************
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* IAutoComplete_fnSetOptions
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*/
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static HRESULT WINAPI IAutoComplete2_fnSetOptions(
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IAutoComplete2 * iface,
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DWORD dwFlag)
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{
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HRESULT hr = S_OK;
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IAutoCompleteImpl *This = impl_from_IAutoComplete2(iface);
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TRACE("(%p) -> (0x%x)\n", This, dwFlag);
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This->options = dwFlag;
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return hr;
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}
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/**************************************************************************
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* IAutoComplete2_fnVTable
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*/
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static const IAutoComplete2Vtbl ac2vt =
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{
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IAutoComplete2_fnQueryInterface,
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IAutoComplete2_fnAddRef,
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IAutoComplete2_fnRelease,
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IAutoComplete2_fnInit,
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IAutoComplete2_fnEnable,
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/* IAutoComplete2 */
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IAutoComplete2_fnSetOptions,
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IAutoComplete2_fnGetOptions,
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};
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/*
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Window procedure for autocompletion
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*/
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static LRESULT APIENTRY ACEditSubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
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{
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IAutoCompleteImpl *This = (IAutoCompleteImpl *)GetWindowLongPtrW(hwnd, GWLP_USERDATA);
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LPOLESTR strs;
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HRESULT hr;
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WCHAR hwndText[255];
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WCHAR *hwndQCText;
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RECT r;
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BOOL control, filled, displayall = FALSE;
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int cpt, height, sel;
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if (!This->enabled) return CallWindowProcW(This->wpOrigEditProc, hwnd, uMsg, wParam, lParam);
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switch (uMsg)
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{
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case CB_SHOWDROPDOWN:
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ShowWindow(This->hwndListBox, SW_HIDE);
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break;
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case WM_KILLFOCUS:
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if ((This->options && ACO_AUTOSUGGEST) &&
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((HWND)wParam != This->hwndListBox))
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{
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ShowWindow(This->hwndListBox, SW_HIDE);
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}
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break;
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case WM_KEYUP:
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GetWindowTextW( hwnd, (LPWSTR)hwndText, 255);
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switch(wParam) {
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case VK_RETURN:
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/* If quickComplete is set and control is pressed, replace the string */
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control = GetKeyState(VK_CONTROL) & 0x8000;
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if (control && This->quickComplete) {
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hwndQCText = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
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(wcslen(This->quickComplete)+wcslen(hwndText))*sizeof(WCHAR));
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sel = swprintf(hwndQCText, This->quickComplete, hwndText);
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SendMessageW(hwnd, WM_SETTEXT, 0, (LPARAM)hwndQCText);
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SendMessageW(hwnd, EM_SETSEL, 0, sel);
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HeapFree(GetProcessHeap(), 0, hwndQCText);
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}
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ShowWindow(This->hwndListBox, SW_HIDE);
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return 0;
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case VK_LEFT:
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case VK_RIGHT:
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return 0;
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case VK_UP:
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case VK_DOWN:
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/* Two cases here :
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- if the listbox is not visible, displays it
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with all the entries if the style ACO_UPDOWNKEYDROPSLIST
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is present but does not select anything.
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- if the listbox is visible, change the selection
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*/
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if ( (This->options & (ACO_AUTOSUGGEST | ACO_UPDOWNKEYDROPSLIST))
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&& (!IsWindowVisible(This->hwndListBox) && (! *hwndText)) )
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{
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/* We must display all the entries */
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displayall = TRUE;
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} else {
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if (IsWindowVisible(This->hwndListBox)) {
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int count;
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count = SendMessageW(This->hwndListBox, LB_GETCOUNT, 0, 0);
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/* Change the selection */
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sel = SendMessageW(This->hwndListBox, LB_GETCURSEL, 0, 0);
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if (wParam == VK_UP)
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sel = ((sel-1)<0)?count-1:sel-1;
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else
|
|
sel = ((sel+1)>= count)?-1:sel+1;
|
|
SendMessageW(This->hwndListBox, LB_SETCURSEL, sel, 0);
|
|
if (sel != -1) {
|
|
WCHAR *msg;
|
|
int len;
|
|
|
|
len = SendMessageW(This->hwndListBox, LB_GETTEXTLEN, sel, (LPARAM)NULL);
|
|
msg = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (len+1)*sizeof(WCHAR));
|
|
SendMessageW(This->hwndListBox, LB_GETTEXT, sel, (LPARAM)msg);
|
|
SendMessageW(hwnd, WM_SETTEXT, 0, (LPARAM)msg);
|
|
SendMessageW(hwnd, EM_SETSEL, wcslen(msg), wcslen(msg));
|
|
HeapFree(GetProcessHeap(), 0, msg);
|
|
} else {
|
|
SendMessageW(hwnd, WM_SETTEXT, 0, (LPARAM)This->txtbackup);
|
|
SendMessageW(hwnd, EM_SETSEL, wcslen(This->txtbackup), wcslen(This->txtbackup));
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
break;
|
|
case VK_BACK:
|
|
case VK_DELETE:
|
|
if ((! *hwndText) && (This->options & ACO_AUTOSUGGEST)) {
|
|
ShowWindow(This->hwndListBox, SW_HIDE);
|
|
return CallWindowProcW(This->wpOrigEditProc, hwnd, uMsg, wParam, lParam);
|
|
}
|
|
if (This->options & ACO_AUTOAPPEND) {
|
|
DWORD b;
|
|
SendMessageW(hwnd, EM_GETSEL, (WPARAM)&b, (LPARAM)NULL);
|
|
if (b>1) {
|
|
hwndText[b-1] = '\0';
|
|
} else {
|
|
hwndText[0] = '\0';
|
|
SetWindowTextW(hwnd, hwndText);
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
;
|
|
}
|
|
|
|
SendMessageW(This->hwndListBox, LB_RESETCONTENT, 0, 0);
|
|
|
|
HeapFree(GetProcessHeap(), 0, This->txtbackup);
|
|
This->txtbackup = HeapAlloc(GetProcessHeap(),
|
|
HEAP_ZERO_MEMORY, (wcslen(hwndText)+1)*sizeof(WCHAR));
|
|
wcscpy(This->txtbackup, hwndText);
|
|
|
|
/* Returns if there is no text to search and we doesn't want to display all the entries */
|
|
if ((!displayall) && (! *hwndText) )
|
|
break;
|
|
|
|
IEnumString_Reset(This->enumstr);
|
|
filled = FALSE;
|
|
for(cpt = 0;;) {
|
|
hr = IEnumString_Next(This->enumstr, 1, &strs, NULL);
|
|
if (hr != S_OK)
|
|
break;
|
|
|
|
if ((LPWSTR)strstrW(strs, hwndText) == strs) {
|
|
|
|
if (This->options & ACO_AUTOAPPEND) {
|
|
SetWindowTextW(hwnd, strs);
|
|
SendMessageW(hwnd, EM_SETSEL, wcslen(hwndText), wcslen(strs));
|
|
break;
|
|
}
|
|
|
|
if (This->options & ACO_AUTOSUGGEST) {
|
|
SendMessageW(This->hwndListBox, LB_ADDSTRING, 0, (LPARAM)strs);
|
|
filled = TRUE;
|
|
cpt++;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (This->options & ACO_AUTOSUGGEST) {
|
|
if (filled) {
|
|
height = SendMessageW(This->hwndListBox, LB_GETITEMHEIGHT, 0, 0);
|
|
SendMessageW(This->hwndListBox, LB_CARETOFF, 0, 0);
|
|
GetWindowRect(hwnd, &r);
|
|
SetParent(This->hwndListBox, HWND_DESKTOP);
|
|
/* It seems that Windows XP displays 7 lines at most
|
|
and otherwise displays a vertical scroll bar */
|
|
SetWindowPos(This->hwndListBox, HWND_TOP,
|
|
r.left, r.bottom + 1, r.right - r.left, min(height * 7, height*(cpt+1)),
|
|
SWP_SHOWWINDOW );
|
|
} else {
|
|
ShowWindow(This->hwndListBox, SW_HIDE);
|
|
}
|
|
}
|
|
|
|
break;
|
|
default:
|
|
return CallWindowProcW(This->wpOrigEditProc, hwnd, uMsg, wParam, lParam);
|
|
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static LRESULT APIENTRY ACLBoxSubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
|
|
{
|
|
IAutoCompleteImpl *This = (IAutoCompleteImpl *)GetWindowLongPtrW(hwnd, GWLP_USERDATA);
|
|
WCHAR *msg;
|
|
int sel, len;
|
|
|
|
switch (uMsg) {
|
|
case WM_MOUSEMOVE:
|
|
sel = SendMessageW(hwnd, LB_ITEMFROMPOINT, 0, lParam);
|
|
SendMessageW(hwnd, LB_SETCURSEL, (WPARAM)sel, (LPARAM)0);
|
|
break;
|
|
case WM_LBUTTONDOWN:
|
|
sel = SendMessageW(hwnd, LB_GETCURSEL, 0, 0);
|
|
if (sel < 0)
|
|
break;
|
|
len = SendMessageW(This->hwndListBox, LB_GETTEXTLEN, sel, 0);
|
|
msg = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (len+1)*sizeof(WCHAR));
|
|
SendMessageW(hwnd, LB_GETTEXT, sel, (LPARAM)msg);
|
|
SendMessageW(This->hwndEdit, WM_SETTEXT, 0, (LPARAM)msg);
|
|
SendMessageW(This->hwndEdit, EM_SETSEL, 0, wcslen(msg));
|
|
ShowWindow(hwnd, SW_HIDE);
|
|
HeapFree(GetProcessHeap(), 0, msg);
|
|
break;
|
|
default:
|
|
return CallWindowProcW(This->wpOrigLBoxProc, hwnd, uMsg, wParam, lParam);
|
|
}
|
|
return 0;
|
|
}
|