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git://source.winehq.org/git/wine.git
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1304 lines
40 KiB
C
1304 lines
40 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 2018 Gabriel Ivăncescu <gabrielopcode@gmail.com>
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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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TODO:
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- implement ACO_SEARCH style
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- implement ACO_RTLREADING style
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- implement ACO_WORD_FILTER style
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*/
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#include <stdarg.h>
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#include <stdlib.h>
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#include <string.h>
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#define COBJMACROS
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#include "wine/debug.h"
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#include "windef.h"
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#include "winbase.h"
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#include "winreg.h"
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#include "shlwapi.h"
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#include "winerror.h"
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#include "objbase.h"
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#include "pidl.h"
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#include "shlobj.h"
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#include "shldisp.h"
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#include "debughlp.h"
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#include "shell32_main.h"
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WINE_DEFAULT_DEBUG_CHANNEL(shell);
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typedef struct
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{
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IAutoComplete2 IAutoComplete2_iface;
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IAutoCompleteDropDown IAutoCompleteDropDown_iface;
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LONG ref;
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BOOL initialized;
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BOOL enabled;
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UINT enum_strs_num;
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WCHAR **enum_strs;
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WCHAR **listbox_strs;
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HWND hwndEdit;
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HWND hwndListBox;
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HWND hwndListBoxOwner;
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WNDPROC wpOrigEditProc;
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WNDPROC wpOrigLBoxProc;
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WNDPROC wpOrigLBoxOwnerProc;
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WCHAR *txtbackup;
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WCHAR *quickComplete;
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IEnumString *enumstr;
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IACList *aclist;
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AUTOCOMPLETEOPTIONS options;
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WCHAR no_fwd_char;
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} IAutoCompleteImpl;
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enum autoappend_flag
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{
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autoappend_flag_yes,
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autoappend_flag_no,
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autoappend_flag_displayempty
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};
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enum prefix_filtering
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{
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prefix_filtering_none = 0, /* no prefix filtering (raw search) */
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prefix_filtering_protocol, /* filter common protocol (e.g. http://) */
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prefix_filtering_all /* filter all common prefixes (protocol & www. ) */
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};
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static const WCHAR autocomplete_propertyW[] = L"Wine Autocomplete control";
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static inline IAutoCompleteImpl *impl_from_IAutoComplete2(IAutoComplete2 *iface)
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{
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return CONTAINING_RECORD(iface, IAutoCompleteImpl, IAutoComplete2_iface);
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}
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static inline IAutoCompleteImpl *impl_from_IAutoCompleteDropDown(IAutoCompleteDropDown *iface)
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{
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return CONTAINING_RECORD(iface, IAutoCompleteImpl, IAutoCompleteDropDown_iface);
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}
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static void set_text_and_selection(IAutoCompleteImpl *ac, HWND hwnd, WCHAR *text, WPARAM start, LPARAM end)
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{
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/* Send it directly to the edit control to match Windows behavior */
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WNDPROC proc = ac->wpOrigEditProc;
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if (CallWindowProcW(proc, hwnd, WM_SETTEXT, 0, (LPARAM)text))
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CallWindowProcW(proc, hwnd, EM_SETSEL, start, end);
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}
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static inline WCHAR *filter_protocol(WCHAR *str)
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{
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if (!wcsncmp(str, L"http", 4))
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{
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str += 4;
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str += (*str == 's'); /* https */
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if (str[0] == ':' && str[1] == '/' && str[2] == '/')
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return str + 3;
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}
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return NULL;
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}
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static inline WCHAR *filter_www(WCHAR *str)
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{
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if (!wcsncmp(str, L"www.", 4)) return str + 4;
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return NULL;
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}
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/*
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Get the prefix filtering based on text, for example if text's prefix
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is a protocol, then we return none because we actually filter nothing
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*/
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static enum prefix_filtering get_text_prefix_filtering(const WCHAR *text)
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{
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/* Convert to lowercase to perform case insensitive filtering,
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using the longest possible prefix as the size of the buffer */
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WCHAR buf[sizeof("https://")];
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UINT i;
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for (i = 0; i < ARRAY_SIZE(buf) - 1 && text[i]; i++)
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buf[i] = towlower(text[i]);
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buf[i] = '\0';
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if (filter_protocol(buf)) return prefix_filtering_none;
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if (filter_www(buf)) return prefix_filtering_protocol;
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return prefix_filtering_all;
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}
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/*
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Filter the prefix of str based on the value of pfx_filter
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This is used in sorting, so it's more performance sensitive
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*/
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static WCHAR *filter_str_prefix(WCHAR *str, enum prefix_filtering pfx_filter)
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{
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WCHAR *p = str;
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if (pfx_filter == prefix_filtering_none) return str;
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if ((p = filter_protocol(str))) str = p;
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if (pfx_filter == prefix_filtering_protocol) return str;
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if ((p = filter_www(str))) str = p;
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return str;
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}
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static inline int sort_strs_cmpfn_impl(WCHAR *a, WCHAR *b, enum prefix_filtering pfx_filter)
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{
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WCHAR *str1 = filter_str_prefix(a, pfx_filter);
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WCHAR *str2 = filter_str_prefix(b, pfx_filter);
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return wcsicmp(str1, str2);
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}
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static int __cdecl sort_strs_cmpfn_none(const void *a, const void *b)
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{
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return sort_strs_cmpfn_impl(*(WCHAR* const*)a, *(WCHAR* const*)b, prefix_filtering_none);
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}
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static int __cdecl sort_strs_cmpfn_protocol(const void *a, const void *b)
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{
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return sort_strs_cmpfn_impl(*(WCHAR* const*)a, *(WCHAR* const*)b, prefix_filtering_protocol);
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}
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static int __cdecl sort_strs_cmpfn_all(const void *a, const void *b)
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{
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return sort_strs_cmpfn_impl(*(WCHAR* const*)a, *(WCHAR* const*)b, prefix_filtering_all);
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}
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static int (* __cdecl sort_strs_cmpfn[])(const void*, const void*) =
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{
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sort_strs_cmpfn_none,
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sort_strs_cmpfn_protocol,
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sort_strs_cmpfn_all
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};
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static void sort_strs(WCHAR **strs, UINT numstrs, enum prefix_filtering pfx_filter)
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{
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qsort(strs, numstrs, sizeof(*strs), sort_strs_cmpfn[pfx_filter]);
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}
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/*
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Enumerate all of the strings and sort them in the internal list.
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We don't free the enumerated strings (except on error) to avoid needless
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copies, until the next reset (or the object itself is destroyed)
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*/
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static void enumerate_strings(IAutoCompleteImpl *ac, enum prefix_filtering pfx_filter)
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{
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UINT cur = 0, array_size = 1024;
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LPOLESTR *strs = NULL, *tmp;
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ULONG read;
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do
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{
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if ((tmp = realloc(strs, array_size * sizeof(*strs))) == NULL)
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goto fail;
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strs = tmp;
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do
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{
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if (FAILED(IEnumString_Next(ac->enumstr, array_size - cur, &strs[cur], &read)))
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read = 0;
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} while (read != 0 && (cur += read) < array_size);
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array_size *= 2;
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} while (read != 0);
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/* Allocate even if there were zero strings enumerated, to mark it non-NULL */
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if ((tmp = realloc(strs, cur * sizeof(*strs))))
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{
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strs = tmp;
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if (cur > 0)
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sort_strs(strs, cur, pfx_filter);
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ac->enum_strs = strs;
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ac->enum_strs_num = cur;
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return;
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}
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fail:
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while (cur--)
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CoTaskMemFree(strs[cur]);
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free(strs);
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}
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static UINT find_matching_enum_str(IAutoCompleteImpl *ac, UINT start, WCHAR *text,
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UINT len, enum prefix_filtering pfx_filter, int direction)
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{
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WCHAR **strs = ac->enum_strs;
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UINT index = ~0, a = start, b = ac->enum_strs_num;
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while (a < b)
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{
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UINT i = (a + b - 1) / 2;
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int cmp = wcsnicmp(text, filter_str_prefix(strs[i], pfx_filter), len);
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if (cmp == 0)
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{
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index = i;
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cmp = direction;
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}
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if (cmp <= 0) b = i;
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else a = i + 1;
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}
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return index;
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}
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static void free_enum_strs(IAutoCompleteImpl *ac)
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{
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WCHAR **strs = ac->enum_strs;
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if (strs)
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{
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UINT i = ac->enum_strs_num;
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ac->enum_strs = NULL;
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while (i--)
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CoTaskMemFree(strs[i]);
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free(strs);
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}
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}
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static void hide_listbox(IAutoCompleteImpl *ac, HWND hwnd, BOOL reset)
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{
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ShowWindow(ac->hwndListBoxOwner, SW_HIDE);
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SendMessageW(hwnd, LB_RESETCONTENT, 0, 0);
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if (reset) free_enum_strs(ac);
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}
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static void show_listbox(IAutoCompleteImpl *ac)
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{
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RECT r;
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UINT cnt, width, height;
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GetWindowRect(ac->hwndEdit, &r);
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/* Windows XP displays 7 lines at most, then it uses a scroll bar */
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cnt = SendMessageW(ac->hwndListBox, LB_GETCOUNT, 0, 0);
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height = SendMessageW(ac->hwndListBox, LB_GETITEMHEIGHT, 0, 0) * min(cnt + 1, 7);
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width = r.right - r.left;
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SetWindowPos(ac->hwndListBoxOwner, HWND_TOP, r.left, r.bottom + 1, width, height,
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SWP_SHOWWINDOW | SWP_NOACTIVATE);
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}
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static void set_listbox_font(IAutoCompleteImpl *ac, HFONT font)
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{
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/* We have to calculate the item height manually due to owner-drawn */
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HFONT old_font = NULL;
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UINT height = 16;
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HDC hdc;
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if ((hdc = GetDCEx(ac->hwndListBox, 0, DCX_CACHE)))
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{
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TEXTMETRICW metrics;
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if (font) old_font = SelectObject(hdc, font);
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if (GetTextMetricsW(hdc, &metrics))
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height = metrics.tmHeight;
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if (old_font) SelectObject(hdc, old_font);
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ReleaseDC(ac->hwndListBox, hdc);
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}
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SendMessageW(ac->hwndListBox, WM_SETFONT, (WPARAM)font, FALSE);
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SendMessageW(ac->hwndListBox, LB_SETITEMHEIGHT, 0, height);
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}
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static BOOL draw_listbox_item(IAutoCompleteImpl *ac, DRAWITEMSTRUCT *info, UINT id)
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{
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COLORREF old_text, old_bk;
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HDC hdc = info->hDC;
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UINT state;
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WCHAR *str;
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if (info->CtlType != ODT_LISTBOX || info->CtlID != id ||
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id != (UINT)GetWindowLongPtrW(ac->hwndListBox, GWLP_ID))
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return FALSE;
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if ((INT)info->itemID < 0 || info->itemAction == ODA_FOCUS)
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return TRUE;
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state = info->itemState;
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if (state & ODS_SELECTED)
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{
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old_bk = SetBkColor(hdc, GetSysColor(COLOR_HIGHLIGHT));
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old_text = SetTextColor(hdc, GetSysColor(COLOR_HIGHLIGHTTEXT));
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}
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str = ac->listbox_strs[info->itemID];
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ExtTextOutW(hdc, info->rcItem.left + 1, info->rcItem.top,
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ETO_OPAQUE | ETO_CLIPPED, &info->rcItem, str,
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lstrlenW(str), NULL);
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if (state & ODS_SELECTED)
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{
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SetBkColor(hdc, old_bk);
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SetTextColor(hdc, old_text);
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}
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return TRUE;
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}
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static size_t format_quick_complete(WCHAR *dst, const WCHAR *qc, const WCHAR *str, size_t str_len)
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{
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/* Replace the first %s directly without using snprintf, to avoid
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exploits since the format string can be retrieved from the registry */
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WCHAR *base = dst;
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UINT args = 0;
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while (*qc != '\0')
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{
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if (qc[0] == '%')
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{
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if (args < 1 && qc[1] == 's')
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{
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memcpy(dst, str, str_len * sizeof(WCHAR));
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dst += str_len;
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qc += 2;
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args++;
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continue;
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}
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qc += (qc[1] == '%');
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}
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*dst++ = *qc++;
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}
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*dst = '\0';
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return dst - base;
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}
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static BOOL select_item_with_return_key(IAutoCompleteImpl *ac, HWND hwnd)
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{
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WCHAR *text;
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HWND hwndListBox = ac->hwndListBox;
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if (!(ac->options & ACO_AUTOSUGGEST))
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return FALSE;
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if (IsWindowVisible(ac->hwndListBoxOwner))
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{
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INT sel = SendMessageW(hwndListBox, LB_GETCURSEL, 0, 0);
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if (sel >= 0)
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{
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text = ac->listbox_strs[sel];
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set_text_and_selection(ac, hwnd, text, 0, lstrlenW(text));
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hide_listbox(ac, hwndListBox, TRUE);
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ac->no_fwd_char = '\r'; /* RETURN char */
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return TRUE;
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}
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}
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hide_listbox(ac, hwndListBox, TRUE);
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return FALSE;
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}
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static LRESULT change_selection(IAutoCompleteImpl *ac, HWND hwnd, UINT key)
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{
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WCHAR *msg;
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UINT len;
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INT count = SendMessageW(ac->hwndListBox, LB_GETCOUNT, 0, 0);
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INT sel = SendMessageW(ac->hwndListBox, LB_GETCURSEL, 0, 0);
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if (key == VK_PRIOR || key == VK_NEXT)
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{
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if (sel < 0)
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sel = (key == VK_PRIOR) ? count - 1 : 0;
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else
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{
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INT base = SendMessageW(ac->hwndListBox, LB_GETTOPINDEX, 0, 0);
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INT pgsz = SendMessageW(ac->hwndListBox, LB_GETLISTBOXINFO, 0, 0);
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pgsz = max(pgsz - 1, 1);
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if (key == VK_PRIOR)
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{
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if (sel == 0)
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sel = -1;
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else
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{
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if (sel == base) base -= min(base, pgsz);
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sel = base;
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}
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}
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else
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{
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if (sel == count - 1)
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sel = -1;
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else
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{
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base += pgsz;
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if (sel >= base) base += pgsz;
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sel = min(base, count - 1);
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}
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}
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}
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}
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else if (key == VK_UP || (key == VK_TAB && (GetKeyState(VK_SHIFT) & 0x8000)))
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sel = ((sel - 1) < -1) ? 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(ac->hwndListBox, LB_SETCURSEL, sel, 0);
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msg = (sel >= 0) ? ac->listbox_strs[sel] : ac->txtbackup;
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len = lstrlenW(msg);
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set_text_and_selection(ac, hwnd, msg, len, len);
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return 0;
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}
|
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|
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static BOOL do_aclist_expand(IAutoCompleteImpl *ac, WCHAR *txt, WCHAR *last_delim)
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{
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WCHAR c = last_delim[1];
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|
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free_enum_strs(ac);
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IEnumString_Reset(ac->enumstr); /* call before expand */
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|
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last_delim[1] = '\0';
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IACList_Expand(ac->aclist, txt);
|
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last_delim[1] = c;
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return TRUE;
|
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}
|
|
|
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static BOOL aclist_expand(IAutoCompleteImpl *ac, WCHAR *txt)
|
|
{
|
|
/* call IACList::Expand only when needed, if the
|
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new txt and old_txt require different expansions */
|
|
|
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const WCHAR *old_txt = ac->txtbackup;
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WCHAR c, *p, *last_delim;
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size_t i = 0;
|
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|
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/* always expand if the enumerator was reset */
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if (!ac->enum_strs) old_txt = L"";
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|
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/* skip the shared prefix */
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while ((c = towlower(txt[i])) == towlower(old_txt[i]))
|
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{
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if (c == '\0') return FALSE;
|
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i++;
|
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}
|
|
|
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/* they differ at this point, check for a delim further in txt */
|
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for (last_delim = NULL, p = &txt[i]; (p = wcspbrk(p, L"\\/")) != NULL; p++)
|
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last_delim = p;
|
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if (last_delim) return do_aclist_expand(ac, txt, last_delim);
|
|
|
|
/* txt has no delim after i, check for a delim further in old_txt */
|
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if (wcspbrk(&old_txt[i], L"\\/"))
|
|
{
|
|
/* scan backwards to find the first delim before txt[i] (if any) */
|
|
while (i--)
|
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if (wcschr(L"\\/", txt[i]))
|
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return do_aclist_expand(ac, txt, &txt[i]);
|
|
|
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/* Windows doesn't expand without a delim, but it does reset */
|
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free_enum_strs(ac);
|
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}
|
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|
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return FALSE;
|
|
}
|
|
|
|
static void autoappend_str(IAutoCompleteImpl *ac, WCHAR *text, UINT len, WCHAR *str, HWND hwnd)
|
|
{
|
|
DWORD sel_start;
|
|
WCHAR *tmp;
|
|
size_t size;
|
|
|
|
/* Don't auto-append unless the caret is at the end */
|
|
SendMessageW(hwnd, EM_GETSEL, (WPARAM)&sel_start, 0);
|
|
if (sel_start != len)
|
|
return;
|
|
|
|
/* The character capitalization can be different,
|
|
so merge text and str into a new string */
|
|
size = len + lstrlenW(&str[len]) + 1;
|
|
|
|
if ((tmp = malloc(size * sizeof(*tmp))))
|
|
{
|
|
memcpy(tmp, text, len * sizeof(*tmp));
|
|
memcpy(&tmp[len], &str[len], (size - len) * sizeof(*tmp));
|
|
}
|
|
else tmp = str;
|
|
|
|
set_text_and_selection(ac, hwnd, tmp, len, size - 1);
|
|
if (tmp != str)
|
|
free(tmp);
|
|
}
|
|
|
|
static BOOL display_matching_strs(IAutoCompleteImpl *ac, WCHAR *text, UINT len,
|
|
enum prefix_filtering pfx_filter, HWND hwnd,
|
|
enum autoappend_flag flag)
|
|
{
|
|
/* Return FALSE if we need to hide the listbox */
|
|
WCHAR **str = ac->enum_strs;
|
|
UINT start, end;
|
|
if (!str) return !(ac->options & ACO_AUTOSUGGEST);
|
|
|
|
/* Windows seems to disable autoappend if ACO_NOPREFIXFILTERING is set */
|
|
if (!(ac->options & ACO_NOPREFIXFILTERING) && len)
|
|
{
|
|
start = find_matching_enum_str(ac, 0, text, len, pfx_filter, -1);
|
|
if (start == ~0)
|
|
return !(ac->options & ACO_AUTOSUGGEST);
|
|
|
|
if (flag == autoappend_flag_yes)
|
|
autoappend_str(ac, text, len, filter_str_prefix(str[start], pfx_filter), hwnd);
|
|
if (!(ac->options & ACO_AUTOSUGGEST))
|
|
return TRUE;
|
|
|
|
/* Find the index beyond the last string that matches */
|
|
end = find_matching_enum_str(ac, start + 1, text, len, pfx_filter, 1);
|
|
end = (end == ~0 ? start : end) + 1;
|
|
}
|
|
else
|
|
{
|
|
if (!(ac->options & ACO_AUTOSUGGEST))
|
|
return TRUE;
|
|
start = 0;
|
|
end = ac->enum_strs_num;
|
|
if (end == 0)
|
|
return FALSE;
|
|
}
|
|
|
|
SendMessageW(ac->hwndListBox, WM_SETREDRAW, FALSE, 0);
|
|
SendMessageW(ac->hwndListBox, LB_RESETCONTENT, 0, 0);
|
|
|
|
ac->listbox_strs = str + start;
|
|
SendMessageW(ac->hwndListBox, LB_SETCOUNT, end - start, 0);
|
|
|
|
show_listbox(ac);
|
|
SendMessageW(ac->hwndListBox, WM_SETREDRAW, TRUE, 0);
|
|
return TRUE;
|
|
}
|
|
|
|
static enum prefix_filtering setup_prefix_filtering(IAutoCompleteImpl *ac, const WCHAR *text)
|
|
{
|
|
enum prefix_filtering pfx_filter;
|
|
if (!(ac->options & ACO_FILTERPREFIXES)) return prefix_filtering_none;
|
|
|
|
pfx_filter = get_text_prefix_filtering(text);
|
|
if (!ac->enum_strs) return pfx_filter;
|
|
|
|
/* If the prefix filtering is different, re-sort the filtered strings */
|
|
if (pfx_filter != get_text_prefix_filtering(ac->txtbackup))
|
|
sort_strs(ac->enum_strs, ac->enum_strs_num, pfx_filter);
|
|
|
|
return pfx_filter;
|
|
}
|
|
|
|
static void autocomplete_text(IAutoCompleteImpl *ac, HWND hwnd, enum autoappend_flag flag)
|
|
{
|
|
WCHAR *text;
|
|
BOOL expanded = FALSE;
|
|
enum prefix_filtering pfx_filter;
|
|
UINT size, len = SendMessageW(hwnd, WM_GETTEXTLENGTH, 0, 0);
|
|
|
|
if (flag != autoappend_flag_displayempty && len == 0)
|
|
{
|
|
if (ac->options & ACO_AUTOSUGGEST)
|
|
hide_listbox(ac, ac->hwndListBox, FALSE);
|
|
free_enum_strs(ac);
|
|
return;
|
|
}
|
|
|
|
size = len + 1;
|
|
if (!(text = malloc(size * sizeof(WCHAR))))
|
|
{
|
|
/* Reset the listbox to prevent potential crash from ResetEnumerator */
|
|
SendMessageW(ac->hwndListBox, LB_RESETCONTENT, 0, 0);
|
|
return;
|
|
}
|
|
len = SendMessageW(hwnd, WM_GETTEXT, size, (LPARAM)text);
|
|
if (len + 1 != size)
|
|
text = realloc(text, (len + 1) * sizeof(WCHAR));
|
|
|
|
if (ac->aclist)
|
|
{
|
|
if (text[len - 1] == '\\' || text[len - 1] == '/')
|
|
flag = autoappend_flag_no;
|
|
expanded = aclist_expand(ac, text);
|
|
}
|
|
pfx_filter = setup_prefix_filtering(ac, text);
|
|
|
|
if (expanded || !ac->enum_strs)
|
|
{
|
|
if (!expanded) IEnumString_Reset(ac->enumstr);
|
|
enumerate_strings(ac, pfx_filter);
|
|
}
|
|
|
|
/* Set txtbackup to point to text itself (which must not be released),
|
|
and it must be done here since aclist_expand uses it to track changes */
|
|
free(ac->txtbackup);
|
|
ac->txtbackup = text;
|
|
|
|
if (!display_matching_strs(ac, text, len, pfx_filter, hwnd, flag))
|
|
hide_listbox(ac, ac->hwndListBox, FALSE);
|
|
}
|
|
|
|
static void destroy_autocomplete_object(IAutoCompleteImpl *ac)
|
|
{
|
|
ac->hwndEdit = NULL;
|
|
free_enum_strs(ac);
|
|
if (ac->hwndListBoxOwner)
|
|
DestroyWindow(ac->hwndListBoxOwner);
|
|
IAutoComplete2_Release(&ac->IAutoComplete2_iface);
|
|
}
|
|
|
|
/*
|
|
Helper for ACEditSubclassProc
|
|
*/
|
|
static LRESULT ACEditSubclassProc_KeyDown(IAutoCompleteImpl *ac, HWND hwnd, UINT uMsg,
|
|
WPARAM wParam, LPARAM lParam)
|
|
{
|
|
switch (wParam)
|
|
{
|
|
case VK_ESCAPE:
|
|
/* When pressing ESC, Windows hides the auto-suggest listbox, if visible */
|
|
if ((ac->options & ACO_AUTOSUGGEST) && IsWindowVisible(ac->hwndListBoxOwner))
|
|
{
|
|
hide_listbox(ac, ac->hwndListBox, FALSE);
|
|
ac->no_fwd_char = 0x1B; /* ESC char */
|
|
return 0;
|
|
}
|
|
break;
|
|
case VK_RETURN:
|
|
/* If quickComplete is set and control is pressed, replace the string */
|
|
if (ac->quickComplete && (GetKeyState(VK_CONTROL) & 0x8000))
|
|
{
|
|
WCHAR *text, *buf;
|
|
size_t sz;
|
|
UINT len = SendMessageW(hwnd, WM_GETTEXTLENGTH, 0, 0);
|
|
ac->no_fwd_char = '\n'; /* CTRL+RETURN char */
|
|
|
|
if (!(text = malloc((len + 1) * sizeof(WCHAR))))
|
|
return 0;
|
|
len = SendMessageW(hwnd, WM_GETTEXT, len + 1, (LPARAM)text);
|
|
sz = lstrlenW(ac->quickComplete) + 1 + len;
|
|
|
|
if ((buf = malloc(sz * sizeof(WCHAR))))
|
|
{
|
|
len = format_quick_complete(buf, ac->quickComplete, text, len);
|
|
set_text_and_selection(ac, hwnd, buf, 0, len);
|
|
free(buf);
|
|
}
|
|
|
|
if (ac->options & ACO_AUTOSUGGEST)
|
|
hide_listbox(ac, ac->hwndListBox, TRUE);
|
|
free(text);
|
|
return 0;
|
|
}
|
|
|
|
if (select_item_with_return_key(ac, hwnd))
|
|
return 0;
|
|
break;
|
|
case VK_TAB:
|
|
if ((ac->options & (ACO_AUTOSUGGEST | ACO_USETAB)) == (ACO_AUTOSUGGEST | ACO_USETAB)
|
|
&& IsWindowVisible(ac->hwndListBoxOwner) && !(GetKeyState(VK_CONTROL) & 0x8000))
|
|
{
|
|
ac->no_fwd_char = '\t';
|
|
return change_selection(ac, hwnd, wParam);
|
|
}
|
|
break;
|
|
case VK_UP:
|
|
case VK_DOWN:
|
|
case VK_PRIOR:
|
|
case VK_NEXT:
|
|
/* Two cases here:
|
|
- if the listbox is not visible and ACO_UPDOWNKEYDROPSLIST is
|
|
set, display it with all the entries, without selecting any
|
|
- if the listbox is visible, change the selection
|
|
*/
|
|
if (!(ac->options & ACO_AUTOSUGGEST))
|
|
break;
|
|
|
|
if (!IsWindowVisible(ac->hwndListBoxOwner))
|
|
{
|
|
if (ac->options & ACO_UPDOWNKEYDROPSLIST)
|
|
{
|
|
autocomplete_text(ac, hwnd, autoappend_flag_displayempty);
|
|
return 0;
|
|
}
|
|
}
|
|
else
|
|
return change_selection(ac, hwnd, wParam);
|
|
break;
|
|
case VK_DELETE:
|
|
{
|
|
LRESULT ret = CallWindowProcW(ac->wpOrigEditProc, hwnd, uMsg, wParam, lParam);
|
|
autocomplete_text(ac, hwnd, autoappend_flag_no);
|
|
return ret;
|
|
}
|
|
}
|
|
ac->no_fwd_char = '\0';
|
|
return CallWindowProcW(ac->wpOrigEditProc, hwnd, uMsg, wParam, lParam);
|
|
}
|
|
|
|
/*
|
|
Window procedure for autocompletion
|
|
*/
|
|
static LRESULT APIENTRY ACEditSubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
|
|
{
|
|
IAutoCompleteImpl *This = GetPropW(hwnd, autocomplete_propertyW);
|
|
LRESULT ret;
|
|
|
|
if (!This->enabled) return CallWindowProcW(This->wpOrigEditProc, hwnd, uMsg, wParam, lParam);
|
|
|
|
switch (uMsg)
|
|
{
|
|
case CB_SHOWDROPDOWN:
|
|
if (This->options & ACO_AUTOSUGGEST)
|
|
hide_listbox(This, This->hwndListBox, TRUE);
|
|
return 0;
|
|
case WM_KILLFOCUS:
|
|
if (This->options & ACO_AUTOSUGGEST)
|
|
{
|
|
if (This->hwndListBoxOwner == (HWND)wParam ||
|
|
This->hwndListBoxOwner == GetAncestor((HWND)wParam, GA_PARENT))
|
|
break;
|
|
hide_listbox(This, This->hwndListBox, FALSE);
|
|
}
|
|
|
|
/* Reset the enumerator if it's not visible anymore */
|
|
if (!IsWindowVisible(hwnd)) free_enum_strs(This);
|
|
break;
|
|
case WM_WINDOWPOSCHANGED:
|
|
{
|
|
WINDOWPOS *pos = (WINDOWPOS*)lParam;
|
|
|
|
if ((pos->flags & (SWP_NOMOVE | SWP_NOSIZE)) != (SWP_NOMOVE | SWP_NOSIZE) &&
|
|
This->hwndListBoxOwner && IsWindowVisible(This->hwndListBoxOwner))
|
|
show_listbox(This);
|
|
break;
|
|
}
|
|
case WM_KEYDOWN:
|
|
return ACEditSubclassProc_KeyDown(This, hwnd, uMsg, wParam, lParam);
|
|
case WM_CHAR:
|
|
case WM_UNICHAR:
|
|
if (wParam == This->no_fwd_char) return 0;
|
|
This->no_fwd_char = '\0';
|
|
|
|
/* Don't autocomplete at all on most control characters */
|
|
if (wParam < 32 && !(wParam >= '\b' && wParam <= '\r'))
|
|
break;
|
|
|
|
ret = CallWindowProcW(This->wpOrigEditProc, hwnd, uMsg, wParam, lParam);
|
|
autocomplete_text(This, hwnd, (This->options & ACO_AUTOAPPEND) && wParam >= ' '
|
|
? autoappend_flag_yes : autoappend_flag_no);
|
|
return ret;
|
|
case WM_SETTEXT:
|
|
if (This->options & ACO_AUTOSUGGEST)
|
|
hide_listbox(This, This->hwndListBox, TRUE);
|
|
break;
|
|
case WM_CUT:
|
|
case WM_CLEAR:
|
|
case WM_UNDO:
|
|
ret = CallWindowProcW(This->wpOrigEditProc, hwnd, uMsg, wParam, lParam);
|
|
autocomplete_text(This, hwnd, autoappend_flag_no);
|
|
return ret;
|
|
case WM_PASTE:
|
|
ret = CallWindowProcW(This->wpOrigEditProc, hwnd, uMsg, wParam, lParam);
|
|
autocomplete_text(This, hwnd, (This->options & ACO_AUTOAPPEND)
|
|
? autoappend_flag_yes : autoappend_flag_no);
|
|
return ret;
|
|
case WM_MOUSEWHEEL:
|
|
if ((This->options & ACO_AUTOSUGGEST) && IsWindowVisible(This->hwndListBoxOwner))
|
|
return SendMessageW(This->hwndListBox, WM_MOUSEWHEEL, wParam, lParam);
|
|
break;
|
|
case WM_SETFONT:
|
|
if (This->hwndListBox)
|
|
set_listbox_font(This, (HFONT)wParam);
|
|
break;
|
|
case WM_DESTROY:
|
|
{
|
|
WNDPROC proc = This->wpOrigEditProc;
|
|
|
|
SetWindowLongPtrW(hwnd, GWLP_WNDPROC, (LONG_PTR)proc);
|
|
RemovePropW(hwnd, autocomplete_propertyW);
|
|
destroy_autocomplete_object(This);
|
|
return CallWindowProcW(proc, hwnd, uMsg, wParam, lParam);
|
|
}
|
|
}
|
|
return CallWindowProcW(This->wpOrigEditProc, hwnd, uMsg, wParam, lParam);
|
|
}
|
|
|
|
static LRESULT APIENTRY ACLBoxSubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
|
|
{
|
|
IAutoCompleteImpl *This = (IAutoCompleteImpl *)GetWindowLongPtrW(hwnd, GWLP_USERDATA);
|
|
WCHAR *msg;
|
|
INT sel;
|
|
|
|
switch (uMsg) {
|
|
case WM_MOUSEACTIVATE:
|
|
return MA_NOACTIVATE;
|
|
case WM_MOUSEMOVE:
|
|
sel = SendMessageW(hwnd, LB_ITEMFROMPOINT, 0, lParam);
|
|
SendMessageW(hwnd, LB_SETCURSEL, sel, 0);
|
|
return 0;
|
|
case WM_LBUTTONDOWN:
|
|
sel = SendMessageW(hwnd, LB_GETCURSEL, 0, 0);
|
|
if (sel < 0)
|
|
return 0;
|
|
msg = This->listbox_strs[sel];
|
|
set_text_and_selection(This, This->hwndEdit, msg, 0, lstrlenW(msg));
|
|
hide_listbox(This, hwnd, TRUE);
|
|
return 0;
|
|
}
|
|
return CallWindowProcW(This->wpOrigLBoxProc, hwnd, uMsg, wParam, lParam);
|
|
}
|
|
|
|
static LRESULT APIENTRY ACLBoxOwnerSubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
|
|
{
|
|
IAutoCompleteImpl *This = (IAutoCompleteImpl*)GetWindowLongPtrW(hwnd, GWLP_USERDATA);
|
|
|
|
switch (uMsg)
|
|
{
|
|
case WM_MOUSEACTIVATE:
|
|
return MA_NOACTIVATE;
|
|
case WM_DRAWITEM:
|
|
if (draw_listbox_item(This, (DRAWITEMSTRUCT*)lParam, wParam))
|
|
return TRUE;
|
|
break;
|
|
case WM_SIZE:
|
|
SetWindowPos(This->hwndListBox, NULL, 0, 0, LOWORD(lParam), HIWORD(lParam),
|
|
SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOZORDER | SWP_DEFERERASE);
|
|
break;
|
|
}
|
|
return CallWindowProcW(This->wpOrigLBoxOwnerProc, hwnd, uMsg, wParam, lParam);
|
|
}
|
|
|
|
static void create_listbox(IAutoCompleteImpl *This)
|
|
{
|
|
This->hwndListBoxOwner = CreateWindowExW(WS_EX_NOACTIVATE, WC_STATICW, NULL,
|
|
WS_BORDER | WS_POPUP | WS_CLIPCHILDREN,
|
|
0, 0, 0, 0, NULL, NULL, shell32_hInstance, NULL);
|
|
if (!This->hwndListBoxOwner)
|
|
{
|
|
This->options &= ~ACO_AUTOSUGGEST;
|
|
return;
|
|
}
|
|
|
|
/* FIXME : The listbox should be resizable with the mouse. WS_THICKFRAME looks ugly */
|
|
This->hwndListBox = CreateWindowExW(WS_EX_NOACTIVATE, WC_LISTBOXW, NULL,
|
|
WS_CHILD | WS_VISIBLE | WS_VSCROLL | LBS_NODATA | LBS_OWNERDRAWFIXED | LBS_NOINTEGRALHEIGHT,
|
|
0, 0, 0, 0, This->hwndListBoxOwner, NULL, shell32_hInstance, NULL);
|
|
|
|
if (This->hwndListBox) {
|
|
HFONT edit_font;
|
|
|
|
This->wpOrigLBoxProc = (WNDPROC) SetWindowLongPtrW( This->hwndListBox, GWLP_WNDPROC, (LONG_PTR) ACLBoxSubclassProc);
|
|
SetWindowLongPtrW( This->hwndListBox, GWLP_USERDATA, (LONG_PTR)This);
|
|
|
|
This->wpOrigLBoxOwnerProc = (WNDPROC)SetWindowLongPtrW(This->hwndListBoxOwner, GWLP_WNDPROC, (LONG_PTR)ACLBoxOwnerSubclassProc);
|
|
SetWindowLongPtrW(This->hwndListBoxOwner, GWLP_USERDATA, (LONG_PTR)This);
|
|
|
|
/* Use the same font as the edit control, as it gets destroyed before it anyway */
|
|
edit_font = (HFONT)SendMessageW(This->hwndEdit, WM_GETFONT, 0, 0);
|
|
if (edit_font)
|
|
set_listbox_font(This, edit_font);
|
|
return;
|
|
}
|
|
|
|
DestroyWindow(This->hwndListBoxOwner);
|
|
This->hwndListBoxOwner = NULL;
|
|
This->options &= ~ACO_AUTOSUGGEST;
|
|
}
|
|
|
|
/**************************************************************************
|
|
* AutoComplete_QueryInterface
|
|
*/
|
|
static HRESULT WINAPI IAutoComplete2_fnQueryInterface(
|
|
IAutoComplete2 * iface,
|
|
REFIID riid,
|
|
LPVOID *ppvObj)
|
|
{
|
|
IAutoCompleteImpl *This = impl_from_IAutoComplete2(iface);
|
|
|
|
TRACE("(%p)->(IID:%s,%p)\n", This, shdebugstr_guid(riid), ppvObj);
|
|
*ppvObj = NULL;
|
|
|
|
if (IsEqualIID(riid, &IID_IUnknown) ||
|
|
IsEqualIID(riid, &IID_IAutoComplete) ||
|
|
IsEqualIID(riid, &IID_IAutoComplete2))
|
|
{
|
|
*ppvObj = &This->IAutoComplete2_iface;
|
|
}
|
|
else if (IsEqualIID(riid, &IID_IAutoCompleteDropDown))
|
|
{
|
|
*ppvObj = &This->IAutoCompleteDropDown_iface;
|
|
}
|
|
|
|
if (*ppvObj)
|
|
{
|
|
IUnknown_AddRef((IUnknown*)*ppvObj);
|
|
TRACE("-- Interface: (%p)->(%p)\n", ppvObj, *ppvObj);
|
|
return S_OK;
|
|
}
|
|
WARN("unsupported interface: %s\n", debugstr_guid(riid));
|
|
return E_NOINTERFACE;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* IAutoComplete2_fnAddRef
|
|
*/
|
|
static ULONG WINAPI IAutoComplete2_fnAddRef(
|
|
IAutoComplete2 * iface)
|
|
{
|
|
IAutoCompleteImpl *This = impl_from_IAutoComplete2(iface);
|
|
ULONG refCount = InterlockedIncrement(&This->ref);
|
|
|
|
TRACE("(%p)->(%lu)\n", This, refCount - 1);
|
|
|
|
return refCount;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* IAutoComplete2_fnRelease
|
|
*/
|
|
static ULONG WINAPI IAutoComplete2_fnRelease(
|
|
IAutoComplete2 * iface)
|
|
{
|
|
IAutoCompleteImpl *This = impl_from_IAutoComplete2(iface);
|
|
ULONG refCount = InterlockedDecrement(&This->ref);
|
|
|
|
TRACE("(%p)->(%lu)\n", This, refCount + 1);
|
|
|
|
if (!refCount) {
|
|
TRACE("destroying IAutoComplete(%p)\n", This);
|
|
free(This->quickComplete);
|
|
free(This->txtbackup);
|
|
if (This->enumstr)
|
|
IEnumString_Release(This->enumstr);
|
|
if (This->aclist)
|
|
IACList_Release(This->aclist);
|
|
free(This);
|
|
}
|
|
return refCount;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* IAutoComplete2_fnEnable
|
|
*/
|
|
static HRESULT WINAPI IAutoComplete2_fnEnable(
|
|
IAutoComplete2 * iface,
|
|
BOOL fEnable)
|
|
{
|
|
IAutoCompleteImpl *This = impl_from_IAutoComplete2(iface);
|
|
|
|
TRACE("(%p)->(%s)\n", This, (fEnable)?"true":"false");
|
|
|
|
This->enabled = fEnable;
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* IAutoComplete2_fnInit
|
|
*/
|
|
static HRESULT WINAPI IAutoComplete2_fnInit(
|
|
IAutoComplete2 * iface,
|
|
HWND hwndEdit,
|
|
IUnknown *punkACL,
|
|
LPCOLESTR pwzsRegKeyPath,
|
|
LPCOLESTR pwszQuickComplete)
|
|
{
|
|
IAutoCompleteImpl *prev, *This = impl_from_IAutoComplete2(iface);
|
|
|
|
TRACE("(%p)->(%p, %p, %s, %s)\n",
|
|
This, hwndEdit, punkACL, debugstr_w(pwzsRegKeyPath), debugstr_w(pwszQuickComplete));
|
|
|
|
if (This->options & ACO_SEARCH) FIXME(" ACO_SEARCH not supported\n");
|
|
if (This->options & ACO_RTLREADING) FIXME(" ACO_RTLREADING not supported\n");
|
|
if (This->options & ACO_WORD_FILTER) FIXME(" ACO_WORD_FILTER not supported\n");
|
|
|
|
if (!hwndEdit || !punkACL)
|
|
return E_INVALIDARG;
|
|
|
|
if (This->initialized)
|
|
{
|
|
WARN("Autocompletion object is already initialized\n");
|
|
/* This->hwndEdit is set to NULL when the edit window is destroyed. */
|
|
return This->hwndEdit ? E_FAIL : E_UNEXPECTED;
|
|
}
|
|
|
|
if (FAILED (IUnknown_QueryInterface (punkACL, &IID_IEnumString, (LPVOID*)&This->enumstr))) {
|
|
WARN("No IEnumString interface\n");
|
|
return E_NOINTERFACE;
|
|
}
|
|
|
|
/* Prevent txtbackup from ever being NULL to simplify aclist_expand */
|
|
if ((This->txtbackup = calloc(1, sizeof(WCHAR))) == NULL)
|
|
{
|
|
IEnumString_Release(This->enumstr);
|
|
This->enumstr = NULL;
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
|
|
if (FAILED (IUnknown_QueryInterface (punkACL, &IID_IACList, (LPVOID*)&This->aclist)))
|
|
This->aclist = NULL;
|
|
|
|
This->initialized = TRUE;
|
|
This->hwndEdit = hwndEdit;
|
|
|
|
/* If another AutoComplete object was previously assigned to this edit control,
|
|
release it but keep the same callback on the control, to avoid an infinite
|
|
recursive loop in ACEditSubclassProc while the property is set to this object */
|
|
prev = GetPropW(hwndEdit, autocomplete_propertyW);
|
|
SetPropW(hwndEdit, autocomplete_propertyW, This);
|
|
|
|
if (prev && prev->initialized) {
|
|
This->wpOrigEditProc = prev->wpOrigEditProc;
|
|
destroy_autocomplete_object(prev);
|
|
}
|
|
else
|
|
This->wpOrigEditProc = (WNDPROC) SetWindowLongPtrW(hwndEdit, GWLP_WNDPROC, (LONG_PTR) ACEditSubclassProc);
|
|
|
|
/* Keep at least one reference to the object until the edit window is destroyed */
|
|
IAutoComplete2_AddRef(&This->IAutoComplete2_iface);
|
|
|
|
if (This->options & ACO_AUTOSUGGEST)
|
|
create_listbox(This);
|
|
|
|
if (pwzsRegKeyPath)
|
|
{
|
|
static const HKEY roots[] = { HKEY_CURRENT_USER, HKEY_LOCAL_MACHINE };
|
|
WCHAR *key, *value;
|
|
DWORD type, sz;
|
|
BYTE *qc;
|
|
HKEY hKey;
|
|
LSTATUS res;
|
|
size_t len;
|
|
UINT i;
|
|
|
|
/* pwszRegKeyPath contains the key as well as the value, so split it */
|
|
value = wcsrchr(pwzsRegKeyPath, '\\');
|
|
len = value - pwzsRegKeyPath;
|
|
|
|
if (value && (key = malloc((len + 1) * sizeof(*key))) != NULL)
|
|
{
|
|
memcpy(key, pwzsRegKeyPath, len * sizeof(*key));
|
|
key[len] = '\0';
|
|
value++;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(roots); i++)
|
|
{
|
|
if (RegOpenKeyExW(roots[i], key, 0, KEY_READ, &hKey) != ERROR_SUCCESS)
|
|
continue;
|
|
sz = MAX_PATH * sizeof(WCHAR);
|
|
|
|
while ((qc = malloc(sz)) != NULL)
|
|
{
|
|
res = RegQueryValueExW(hKey, value, NULL, &type, qc, &sz);
|
|
if (res == ERROR_SUCCESS && type == REG_SZ)
|
|
{
|
|
This->quickComplete = realloc(qc, sz);
|
|
i = ARRAY_SIZE(roots);
|
|
break;
|
|
}
|
|
free(qc);
|
|
if (res != ERROR_MORE_DATA || type != REG_SZ)
|
|
break;
|
|
}
|
|
RegCloseKey(hKey);
|
|
}
|
|
free(key);
|
|
}
|
|
}
|
|
|
|
if (!This->quickComplete && pwszQuickComplete)
|
|
{
|
|
size_t len = lstrlenW(pwszQuickComplete)+1;
|
|
if ((This->quickComplete = malloc(len * sizeof(WCHAR))) != NULL)
|
|
memcpy(This->quickComplete, pwszQuickComplete, len * sizeof(WCHAR));
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
/**************************************************************************
|
|
* IAutoComplete2_fnGetOptions
|
|
*/
|
|
static HRESULT WINAPI IAutoComplete2_fnGetOptions(
|
|
IAutoComplete2 * iface,
|
|
DWORD *pdwFlag)
|
|
{
|
|
IAutoCompleteImpl *This = impl_from_IAutoComplete2(iface);
|
|
|
|
TRACE("(%p) -> (%p)\n", This, pdwFlag);
|
|
|
|
*pdwFlag = This->options;
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
/**************************************************************************
|
|
* IAutoComplete2_fnSetOptions
|
|
*/
|
|
static HRESULT WINAPI IAutoComplete2_fnSetOptions(
|
|
IAutoComplete2 * iface,
|
|
DWORD dwFlag)
|
|
{
|
|
IAutoCompleteImpl *This = impl_from_IAutoComplete2(iface);
|
|
DWORD changed = This->options ^ dwFlag;
|
|
HRESULT hr = S_OK;
|
|
|
|
TRACE("(%p) -> (0x%lx)\n", This, dwFlag);
|
|
|
|
This->options = dwFlag;
|
|
|
|
if ((This->options & ACO_AUTOSUGGEST) && This->hwndEdit && !This->hwndListBox)
|
|
create_listbox(This);
|
|
else if (!(This->options & ACO_AUTOSUGGEST) && This->hwndListBox)
|
|
hide_listbox(This, This->hwndListBox, TRUE);
|
|
|
|
/* If ACO_FILTERPREFIXES changed we might have to reset the enumerator */
|
|
if ((changed & ACO_FILTERPREFIXES) && This->txtbackup)
|
|
{
|
|
if (get_text_prefix_filtering(This->txtbackup) != prefix_filtering_none)
|
|
IAutoCompleteDropDown_ResetEnumerator(&This->IAutoCompleteDropDown_iface);
|
|
}
|
|
|
|
return hr;
|
|
}
|
|
|
|
/**************************************************************************
|
|
* IAutoComplete2 VTable
|
|
*/
|
|
static const IAutoComplete2Vtbl acvt =
|
|
{
|
|
IAutoComplete2_fnQueryInterface,
|
|
IAutoComplete2_fnAddRef,
|
|
IAutoComplete2_fnRelease,
|
|
IAutoComplete2_fnInit,
|
|
IAutoComplete2_fnEnable,
|
|
/* IAutoComplete2 */
|
|
IAutoComplete2_fnSetOptions,
|
|
IAutoComplete2_fnGetOptions,
|
|
};
|
|
|
|
|
|
static HRESULT WINAPI IAutoCompleteDropDown_fnQueryInterface(IAutoCompleteDropDown *iface,
|
|
REFIID riid, LPVOID *ppvObj)
|
|
{
|
|
IAutoCompleteImpl *This = impl_from_IAutoCompleteDropDown(iface);
|
|
return IAutoComplete2_QueryInterface(&This->IAutoComplete2_iface, riid, ppvObj);
|
|
}
|
|
|
|
static ULONG WINAPI IAutoCompleteDropDown_fnAddRef(IAutoCompleteDropDown *iface)
|
|
{
|
|
IAutoCompleteImpl *This = impl_from_IAutoCompleteDropDown(iface);
|
|
return IAutoComplete2_AddRef(&This->IAutoComplete2_iface);
|
|
}
|
|
|
|
static ULONG WINAPI IAutoCompleteDropDown_fnRelease(IAutoCompleteDropDown *iface)
|
|
{
|
|
IAutoCompleteImpl *This = impl_from_IAutoCompleteDropDown(iface);
|
|
return IAutoComplete2_Release(&This->IAutoComplete2_iface);
|
|
}
|
|
|
|
/**************************************************************************
|
|
* IAutoCompleteDropDown_fnGetDropDownStatus
|
|
*/
|
|
static HRESULT WINAPI IAutoCompleteDropDown_fnGetDropDownStatus(
|
|
IAutoCompleteDropDown *iface,
|
|
DWORD *pdwFlags,
|
|
LPWSTR *ppwszString)
|
|
{
|
|
IAutoCompleteImpl *This = impl_from_IAutoCompleteDropDown(iface);
|
|
BOOL dropped;
|
|
|
|
TRACE("(%p) -> (%p, %p)\n", This, pdwFlags, ppwszString);
|
|
|
|
dropped = IsWindowVisible(This->hwndListBoxOwner);
|
|
|
|
if (pdwFlags)
|
|
*pdwFlags = (dropped ? ACDD_VISIBLE : 0);
|
|
|
|
if (ppwszString) {
|
|
if (dropped) {
|
|
int sel;
|
|
|
|
sel = SendMessageW(This->hwndListBox, LB_GETCURSEL, 0, 0);
|
|
if (sel >= 0)
|
|
{
|
|
WCHAR *str = This->listbox_strs[sel];
|
|
size_t size = (lstrlenW(str) + 1) * sizeof(*str);
|
|
|
|
if (!(*ppwszString = CoTaskMemAlloc(size)))
|
|
return E_OUTOFMEMORY;
|
|
memcpy(*ppwszString, str, size);
|
|
}
|
|
else
|
|
*ppwszString = NULL;
|
|
}
|
|
else
|
|
*ppwszString = NULL;
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
/**************************************************************************
|
|
* IAutoCompleteDropDown_fnResetEnumarator
|
|
*/
|
|
static HRESULT WINAPI IAutoCompleteDropDown_fnResetEnumerator(
|
|
IAutoCompleteDropDown *iface)
|
|
{
|
|
IAutoCompleteImpl *This = impl_from_IAutoCompleteDropDown(iface);
|
|
|
|
TRACE("(%p)\n", This);
|
|
|
|
if (This->hwndEdit)
|
|
{
|
|
free_enum_strs(This);
|
|
if ((This->options & ACO_AUTOSUGGEST) && IsWindowVisible(This->hwndListBoxOwner))
|
|
autocomplete_text(This, This->hwndEdit, autoappend_flag_displayempty);
|
|
}
|
|
return S_OK;
|
|
}
|
|
|
|
/**************************************************************************
|
|
* IAutoCompleteDropDown VTable
|
|
*/
|
|
static const IAutoCompleteDropDownVtbl acdropdownvt =
|
|
{
|
|
IAutoCompleteDropDown_fnQueryInterface,
|
|
IAutoCompleteDropDown_fnAddRef,
|
|
IAutoCompleteDropDown_fnRelease,
|
|
IAutoCompleteDropDown_fnGetDropDownStatus,
|
|
IAutoCompleteDropDown_fnResetEnumerator,
|
|
};
|
|
|
|
/**************************************************************************
|
|
* IAutoComplete_Constructor
|
|
*/
|
|
HRESULT WINAPI IAutoComplete_Constructor(IUnknown * pUnkOuter, REFIID riid, LPVOID * ppv)
|
|
{
|
|
IAutoCompleteImpl *lpac;
|
|
HRESULT hr;
|
|
|
|
if (pUnkOuter && !IsEqualIID (riid, &IID_IUnknown))
|
|
return CLASS_E_NOAGGREGATION;
|
|
|
|
lpac = calloc(1, sizeof(*lpac));
|
|
if (!lpac)
|
|
return E_OUTOFMEMORY;
|
|
|
|
lpac->ref = 1;
|
|
lpac->IAutoComplete2_iface.lpVtbl = &acvt;
|
|
lpac->IAutoCompleteDropDown_iface.lpVtbl = &acdropdownvt;
|
|
lpac->enabled = TRUE;
|
|
lpac->options = ACO_AUTOAPPEND;
|
|
|
|
hr = IAutoComplete2_QueryInterface(&lpac->IAutoComplete2_iface, riid, ppv);
|
|
IAutoComplete2_Release(&lpac->IAutoComplete2_iface);
|
|
|
|
TRACE("-- (%p)->\n",lpac);
|
|
|
|
return hr;
|
|
}
|