mirror of
https://github.com/reactos/reactos.git
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534 lines
18 KiB
C++
534 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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* Copyright 2009 Andrew Hill
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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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static const WCHAR autocomplete_propertyW[] = {'W','i','n','e',' ','A','u','t','o',
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'c','o','m','p','l','e','t','e',' ',
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'c','o','n','t','r','o','l',0};
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/**************************************************************************
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* IAutoComplete_Constructor
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*/
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CAutoComplete::CAutoComplete()
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{
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enabled = TRUE;
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initialized = FALSE;
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options = ACO_AUTOAPPEND;
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wpOrigEditProc = NULL;
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hwndListBox = NULL;
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txtbackup = NULL;
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quickComplete = NULL;
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hwndEdit = NULL;
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wpOrigLBoxProc = NULL;
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}
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/**************************************************************************
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* IAutoComplete_Destructor
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*/
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CAutoComplete::~CAutoComplete()
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{
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TRACE(" destroying IAutoComplete(%p)\n", this);
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HeapFree(GetProcessHeap(), 0, quickComplete);
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HeapFree(GetProcessHeap(), 0, txtbackup);
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RemovePropW(hwndEdit, autocomplete_propertyW);
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SetWindowLongPtrW(hwndEdit, GWLP_WNDPROC, (LONG_PTR)wpOrigEditProc);
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if (hwndListBox)
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DestroyWindow(hwndListBox);
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}
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/******************************************************************************
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* IAutoComplete_fnEnable
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*/
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HRESULT WINAPI CAutoComplete::Enable(BOOL fEnable)
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{
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HRESULT hr = S_OK;
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TRACE("(%p)->(%s)\n", this, (fEnable) ? "true" : "false");
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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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HRESULT WINAPI CAutoComplete::Init(HWND hwndEdit, IUnknown *punkACL, LPCOLESTR pwzsRegKeyPath, LPCOLESTR pwszQuickComplete)
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{
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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 (options & ACO_AUTOSUGGEST)
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TRACE(" ACO_AUTOSUGGEST\n");
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if (options & ACO_AUTOAPPEND)
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TRACE(" ACO_AUTOAPPEND\n");
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if (options & ACO_SEARCH)
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FIXME(" ACO_SEARCH not supported\n");
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if (options & ACO_FILTERPREFIXES)
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FIXME(" ACO_FILTERPREFIXES not supported\n");
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if (options & ACO_USETAB)
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FIXME(" ACO_USETAB not supported\n");
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if (options & ACO_UPDOWNKEYDROPSLIST)
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TRACE(" ACO_UPDOWNKEYDROPSLIST\n");
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if (options & ACO_RTLREADING)
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FIXME(" ACO_RTLREADING not supported\n");
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if (!hwndEdit || !punkACL)
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return E_INVALIDARG;
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if (this->initialized)
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{
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WARN("Autocompletion object is already initialized\n");
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/* This->hwndEdit is set to NULL when the edit window is destroyed. */
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return this->hwndEdit ? E_FAIL : E_UNEXPECTED;
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}
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if (!SUCCEEDED (punkACL->QueryInterface(IID_IEnumString, (LPVOID *)&enumstr)))
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{
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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->hwndEdit = hwndEdit;
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this->initialized = TRUE;
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wpOrigEditProc = (WNDPROC)SetWindowLongPtrW(hwndEdit, GWLP_WNDPROC, (LONG_PTR) ACEditSubclassProc);
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// SetWindowLongPtrW(hwndEdit, GWLP_USERDATA, (LONG_PTR)this);
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SetPropW( hwndEdit, autocomplete_propertyW, (HANDLE)this );
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if (options & ACO_AUTOSUGGEST)
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{
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HWND hwndParent;
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hwndParent = GetParent(hwndEdit);
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/* FIXME : The listbox should be resizable with the mouse. WS_THICKFRAME looks ugly */
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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 (hwndListBox)
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{
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wpOrigLBoxProc = (WNDPROC)SetWindowLongPtrW(hwndListBox, GWLP_WNDPROC, (LONG_PTR)ACLBoxSubclassProc);
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SetWindowLongPtrW(hwndListBox, GWLP_USERDATA, (LONG_PTR)this);
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}
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}
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if (pwzsRegKeyPath)
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{
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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 = (WCHAR *)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (wcslen(pwzsRegKeyPath) + 1) * sizeof(WCHAR));
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if (key)
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{
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wcscpy(key, pwzsRegKeyPath);
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value = const_cast<WCHAR *>(strrchrW(key, '\\'));
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if (value)
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{
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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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{
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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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{
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res = RegQueryValueW(hKey, value, result, &len);
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if (res == ERROR_SUCCESS)
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{
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quickComplete = (WCHAR *)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, len * sizeof(WCHAR));
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wcscpy(quickComplete, result);
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}
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RegCloseKey(hKey);
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}
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}
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HeapFree(GetProcessHeap(), 0, key);
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}
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else
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{
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TRACE("HeapAlloc Failed when trying to alloca %d bytes\n", (wcslen(pwzsRegKeyPath) + 1) * sizeof(WCHAR));
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return S_FALSE;
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}
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}
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if ((pwszQuickComplete) && (!quickComplete))
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{
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quickComplete = (WCHAR *)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (wcslen(pwszQuickComplete) + 1) * sizeof(WCHAR));
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if (quickComplete)
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{
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wcscpy(quickComplete, pwszQuickComplete);
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}
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else
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{
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TRACE("HeapAlloc Failed when trying to alloca %d bytes\n", (wcslen(pwszQuickComplete) + 1) * sizeof(WCHAR));
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return S_FALSE;
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}
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}
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return S_OK;
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}
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/**************************************************************************
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* IAutoComplete_fnGetOptions
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*/
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HRESULT WINAPI CAutoComplete::GetOptions(DWORD *pdwFlag)
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{
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HRESULT hr = S_OK;
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TRACE("(%p) -> (%p)\n", this, pdwFlag);
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*pdwFlag = 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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HRESULT WINAPI CAutoComplete::SetOptions(DWORD dwFlag)
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{
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HRESULT hr = S_OK;
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TRACE("(%p) -> (0x%x)\n", this, dwFlag);
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options = (AUTOCOMPLETEOPTIONS)dwFlag;
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return hr;
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}
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/*
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Window procedure for autocompletion
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*/
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LRESULT APIENTRY CAutoComplete::ACEditSubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
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{
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CAutoComplete *pThis = (CAutoComplete *)GetPropW(hwnd, autocomplete_propertyW);;//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 (!pThis->enabled)
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{
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return CallWindowProcW(pThis->wpOrigEditProc, hwnd, uMsg, wParam, lParam);
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}
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switch (uMsg)
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{
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case CB_SHOWDROPDOWN:
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{
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ShowWindow(pThis->hwndListBox, SW_HIDE);
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}; break;
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case WM_KILLFOCUS:
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{
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if ((pThis->options & ACO_AUTOSUGGEST) && ((HWND)wParam != pThis->hwndListBox))
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{
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ShowWindow(pThis->hwndListBox, SW_HIDE);
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}
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return CallWindowProcW(pThis->wpOrigEditProc, hwnd, uMsg, wParam, lParam);
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}; break;
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case WM_KEYUP:
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{
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GetWindowTextW(hwnd, (LPWSTR)hwndText, 255);
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switch(wParam)
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{
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case VK_RETURN:
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{
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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 && pThis->quickComplete)
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{
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hwndQCText = (WCHAR *)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
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(wcslen(pThis->quickComplete)+wcslen(hwndText))*sizeof(WCHAR));
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sel = swprintf(hwndQCText, pThis->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(pThis->hwndListBox, SW_HIDE);
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return 0;
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}; break;
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case VK_LEFT:
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case VK_RIGHT:
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{
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return 0;
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}; break;
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case VK_UP:
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case VK_DOWN:
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{
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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 ( (pThis->options & (ACO_AUTOSUGGEST | ACO_UPDOWNKEYDROPSLIST))
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&& (!IsWindowVisible(pThis->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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}
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else
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{
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if (IsWindowVisible(pThis->hwndListBox))
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{
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int count;
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count = SendMessageW(pThis->hwndListBox, LB_GETCOUNT, 0, 0);
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/* Change the selection */
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sel = SendMessageW(pThis->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
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sel = ((sel+1)>= count)?-1:sel+1;
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SendMessageW(pThis->hwndListBox, LB_SETCURSEL, sel, 0);
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if (sel != -1)
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{
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WCHAR *msg;
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int len;
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len = SendMessageW(pThis->hwndListBox, LB_GETTEXTLEN, sel, (LPARAM)NULL);
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msg = (WCHAR *)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (len + 1) * sizeof(WCHAR));
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if (msg)
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{
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SendMessageW(pThis->hwndListBox, LB_GETTEXT, sel, (LPARAM)msg);
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SendMessageW(hwnd, WM_SETTEXT, 0, (LPARAM)msg);
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SendMessageW(hwnd, EM_SETSEL, wcslen(msg), wcslen(msg));
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HeapFree(GetProcessHeap(), 0, msg);
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}
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else
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{
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TRACE("HeapAlloc failed to allocate %d bytes\n", (len + 1) * sizeof(WCHAR));
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}
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}
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else
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{
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SendMessageW(hwnd, WM_SETTEXT, 0, (LPARAM)pThis->txtbackup);
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SendMessageW(hwnd, EM_SETSEL, wcslen(pThis->txtbackup), wcslen(pThis->txtbackup));
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}
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}
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return 0;
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}
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}; break;
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case VK_BACK:
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case VK_DELETE:
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{
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if ((! *hwndText) && (pThis->options & ACO_AUTOSUGGEST))
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{
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ShowWindow(pThis->hwndListBox, SW_HIDE);
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return CallWindowProcW(pThis->wpOrigEditProc, hwnd, uMsg, wParam, lParam);
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}
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if (pThis->options & ACO_AUTOAPPEND)
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{
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DWORD b;
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SendMessageW(hwnd, EM_GETSEL, (WPARAM)&b, (LPARAM)NULL);
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if (b>1)
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{
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hwndText[b-1] = '\0';
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}
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else
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{
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hwndText[0] = '\0';
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SetWindowTextW(hwnd, hwndText);
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}
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}
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}; break;
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default:
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;
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}
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SendMessageW(pThis->hwndListBox, LB_RESETCONTENT, 0, 0);
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HeapFree(GetProcessHeap(), 0, pThis->txtbackup);
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pThis->txtbackup = (WCHAR *)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (wcslen(hwndText)+1)*sizeof(WCHAR));
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if (pThis->txtbackup)
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{
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wcscpy(pThis->txtbackup, hwndText);
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}
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else
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{
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TRACE("HeapAlloc failed to allocate %d bytes\n", (wcslen(hwndText)+1)*sizeof(WCHAR));
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}
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/* Returns if there is no text to search and we doesn't want to display all the entries */
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if ((!displayall) && (! *hwndText) )
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break;
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pThis->enumstr->Reset();
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filled = FALSE;
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for(cpt = 0;;)
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{
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hr = pThis->enumstr->Next(1, &strs, NULL);
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if (hr != S_OK)
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break;
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if ((LPWSTR)strstrW(strs, hwndText) == strs)
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{
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if (pThis->options & ACO_AUTOAPPEND)
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{
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SetWindowTextW(hwnd, strs);
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SendMessageW(hwnd, EM_SETSEL, wcslen(hwndText), wcslen(strs));
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break;
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}
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if (pThis->options & ACO_AUTOSUGGEST)
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{
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SendMessageW(pThis->hwndListBox, LB_ADDSTRING, 0, (LPARAM)strs);
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filled = TRUE;
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cpt++;
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}
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}
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}
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if (pThis->options & ACO_AUTOSUGGEST)
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{
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if (filled)
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{
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height = SendMessageW(pThis->hwndListBox, LB_GETITEMHEIGHT, 0, 0);
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SendMessageW(pThis->hwndListBox, LB_CARETOFF, 0, 0);
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GetWindowRect(hwnd, &r);
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SetParent(pThis->hwndListBox, HWND_DESKTOP);
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/* It seems that Windows XP displays 7 lines at most
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and otherwise displays a vertical scroll bar */
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SetWindowPos(pThis->hwndListBox, HWND_TOP,
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r.left, r.bottom + 1, r.right - r.left, min(height * 7, height * (cpt + 1)),
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SWP_SHOWWINDOW );
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}
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else
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{
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ShowWindow(pThis->hwndListBox, SW_HIDE);
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}
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}
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}; break;
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default:
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{
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return CallWindowProcW(pThis->wpOrigEditProc, hwnd, uMsg, wParam, lParam);
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}
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}
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return 0;
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}
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LRESULT APIENTRY CAutoComplete::ACLBoxSubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
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{
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CAutoComplete *pThis = (CAutoComplete *)GetWindowLongPtrW(hwnd, GWLP_USERDATA);
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WCHAR *msg;
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int sel, len;
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switch (uMsg)
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{
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case WM_MOUSEMOVE:
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{
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sel = SendMessageW(hwnd, LB_ITEMFROMPOINT, 0, lParam);
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SendMessageW(hwnd, LB_SETCURSEL, (WPARAM)sel, (LPARAM)0);
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}; break;
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case WM_LBUTTONDOWN:
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{
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sel = SendMessageW(hwnd, LB_GETCURSEL, 0, 0);
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if (sel < 0)
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break;
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len = SendMessageW(pThis->hwndListBox, LB_GETTEXTLEN, sel, 0);
|
|
msg = (WCHAR *)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (len + 1) * sizeof(WCHAR));
|
|
|
|
if (msg)
|
|
{
|
|
SendMessageW(hwnd, LB_GETTEXT, sel, (LPARAM)msg);
|
|
SendMessageW(pThis->hwndEdit, WM_SETTEXT, 0, (LPARAM)msg);
|
|
SendMessageW(pThis->hwndEdit, EM_SETSEL, 0, wcslen(msg));
|
|
ShowWindow(hwnd, SW_HIDE);
|
|
|
|
HeapFree(GetProcessHeap(), 0, msg);
|
|
}
|
|
else
|
|
{
|
|
TRACE("HeapAlloc failed to allocate %d bytes\n", (len + 1) * sizeof(WCHAR));
|
|
}
|
|
|
|
}; break;
|
|
|
|
default:
|
|
return CallWindowProcW(pThis->wpOrigLBoxProc, hwnd, uMsg, wParam, lParam);
|
|
}
|
|
return 0;
|
|
}
|