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shell32/autocomplete: Implement ACO_FILTERPREFIXES. 

Signed-off-by: Gabriel Ivăncescu <gabrielopcode@gmail.com>
Signed-off-by: Huw Davies <huw@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Gabriel Ivăncescu 2018-11-28 18:27:47 +02:00 committed by Alexandre Julliard
parent d288d4dbd1
commit 77b23a5e01
1 changed files with 132 additions and 16 deletions
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148
dlls/shell32/autocomplete.c
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@ -22,7 +22,6 @@
/*
TODO:
- implement ACO_SEARCH style
- implement ACO_FILTERPREFIXES style
- implement ACO_RTLREADING style
- implement ACO_WORD_FILTER style
*/
@ -81,6 +80,13 @@ enum autoappend_flag
autoappend_flag_displayempty
};
enum prefix_filtering
{
prefix_filtering_none = 0, /* no prefix filtering (raw search) */
prefix_filtering_protocol, /* filter common protocol (e.g. http://) */
prefix_filtering_all /* filter all common prefixes (protocol & www. ) */
};
static const WCHAR autocomplete_propertyW[] = {'W','i','n','e',' ','A','u','t','o',
'c','o','m','p','l','e','t','e',' ',
'c','o','n','t','r','o','l',0};
@ -103,14 +109,98 @@ static void set_text_and_selection(IAutoCompleteImpl *ac, HWND hwnd, WCHAR *text
CallWindowProcW(proc, hwnd, EM_SETSEL, start, end);
}
static int sort_strs_cmpfn(const void *a, const void *b)
static inline WCHAR *filter_protocol(WCHAR *str)
{
return strcmpiW(*(WCHAR* const*)a, *(WCHAR* const*)b);
static const WCHAR http[] = {'h','t','t','p'};
if (!strncmpW(str, http, ARRAY_SIZE(http)))
{
str += ARRAY_SIZE(http);
str += (*str == 's'); /* https */
if (str[0] == ':' && str[1] == '/' && str[2] == '/')
return str + 3;
}
return NULL;
}
static void sort_strs(WCHAR **strs, UINT numstrs)
static inline WCHAR *filter_www(WCHAR *str)
{
qsort(strs, numstrs, sizeof(*strs), sort_strs_cmpfn);
static const WCHAR www[] = {'w','w','w','.'};
if (!strncmpW(str, www, ARRAY_SIZE(www)))
return str + ARRAY_SIZE(www);
return NULL;
}
/*
Get the prefix filtering based on text, for example if text's prefix
is a protocol, then we return none because we actually filter nothing
*/
static enum prefix_filtering get_text_prefix_filtering(const WCHAR *text)
{
/* Convert to lowercase to perform case insensitive filtering,
using the longest possible prefix as the size of the buffer */
WCHAR buf[sizeof("https://")];
UINT i;
for (i = 0; i < ARRAY_SIZE(buf) - 1 && text[i]; i++)
buf[i] = tolowerW(text[i]);
buf[i] = '\0';
if (filter_protocol(buf)) return prefix_filtering_none;
if (filter_www(buf)) return prefix_filtering_protocol;
return prefix_filtering_all;
}
/*
Filter the prefix of str based on the value of pfx_filter
This is used in sorting, so it's more performance sensitive
*/
static WCHAR *filter_str_prefix(WCHAR *str, enum prefix_filtering pfx_filter)
{
WCHAR *p = str;
if (pfx_filter == prefix_filtering_none) return str;
if ((p = filter_protocol(str))) str = p;
if (pfx_filter == prefix_filtering_protocol) return str;
if ((p = filter_www(str))) str = p;
return str;
}
static inline int sort_strs_cmpfn_impl(WCHAR *a, WCHAR *b, enum prefix_filtering pfx_filter)
{
WCHAR *str1 = filter_str_prefix(a, pfx_filter);
WCHAR *str2 = filter_str_prefix(b, pfx_filter);
return strcmpiW(str1, str2);
}
static int sort_strs_cmpfn_none(const void *a, const void *b)
{
return sort_strs_cmpfn_impl(*(WCHAR* const*)a, *(WCHAR* const*)b, prefix_filtering_none);
}
static int sort_strs_cmpfn_protocol(const void *a, const void *b)
{
return sort_strs_cmpfn_impl(*(WCHAR* const*)a, *(WCHAR* const*)b, prefix_filtering_protocol);
}
static int sort_strs_cmpfn_all(const void *a, const void *b)
{
return sort_strs_cmpfn_impl(*(WCHAR* const*)a, *(WCHAR* const*)b, prefix_filtering_all);
}
static int (*const sort_strs_cmpfn[])(const void*, const void*) =
{
sort_strs_cmpfn_none,
sort_strs_cmpfn_protocol,
sort_strs_cmpfn_all
};
static void sort_strs(WCHAR **strs, UINT numstrs, enum prefix_filtering pfx_filter)
{
qsort(strs, numstrs, sizeof(*strs), sort_strs_cmpfn[pfx_filter]);
}
/*
@ -119,7 +209,7 @@ static void sort_strs(WCHAR **strs, UINT numstrs)
We don't free the enumerated strings (except on error) to avoid needless
copies, until the next reset (or the object itself is destroyed)
*/
static void enumerate_strings(IAutoCompleteImpl *ac)
static void enumerate_strings(IAutoCompleteImpl *ac, enum prefix_filtering pfx_filter)
{
UINT cur = 0, array_size = 1024;
LPOLESTR *strs = NULL, *tmp;
@ -145,7 +235,7 @@ static void enumerate_strings(IAutoCompleteImpl *ac)
{
strs = tmp;
if (cur > 0)
sort_strs(strs, cur);
sort_strs(strs, cur, pfx_filter);
ac->enum_strs = strs;
ac->enum_strs_num = cur;
@ -159,14 +249,14 @@ fail:
}
static UINT find_matching_enum_str(IAutoCompleteImpl *ac, UINT start, WCHAR *text,
UINT len, int direction)
UINT len, enum prefix_filtering pfx_filter, int direction)
{
WCHAR **strs = ac->enum_strs;
UINT index = ~0, a = start, b = ac->enum_strs_num;
while (a < b)
{
UINT i = (a + b - 1) / 2;
int cmp = strncmpiW(text, strs[i], len);
int cmp = strncmpiW(text, filter_str_prefix(strs[i], pfx_filter), len);
if (cmp == 0)
{
index = i;
@ -406,7 +496,8 @@ static void autoappend_str(IAutoCompleteImpl *ac, WCHAR *text, UINT len, WCHAR *
}
static BOOL display_matching_strs(IAutoCompleteImpl *ac, WCHAR *text, UINT len,
HWND hwnd, enum autoappend_flag flag)
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;
@ -416,17 +507,17 @@ static BOOL display_matching_strs(IAutoCompleteImpl *ac, WCHAR *text, UINT len,
/* 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, -1);
start = find_matching_enum_str(ac, 0, text, len, pfx_filter, -1);
if (start == ~0)
return (ac->options & ACO_AUTOSUGGEST) ? FALSE : TRUE;
if (flag == autoappend_flag_yes)
autoappend_str(ac, text, len, str[start], hwnd);
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, 1);
end = find_matching_enum_str(ac, start + 1, text, len, pfx_filter, 1);
end = (end == ~0 ? start : end) + 1;
}
else
@ -450,10 +541,26 @@ static BOOL display_matching_strs(IAutoCompleteImpl *ac, WCHAR *text, UINT len,
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)
@ -477,10 +584,12 @@ static void autocomplete_text(IAutoCompleteImpl *ac, HWND hwnd, enum autoappend_
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);
enumerate_strings(ac, pfx_filter);
}
/* Set txtbackup to point to text itself (which must not be released),
@ -488,7 +597,7 @@ static void autocomplete_text(IAutoCompleteImpl *ac, HWND hwnd, enum autoappend_
heap_free(ac->txtbackup);
ac->txtbackup = text;
if (!display_matching_strs(ac, text, len, hwnd, flag))
if (!display_matching_strs(ac, text, len, pfx_filter, hwnd, flag))
hide_listbox(ac, ac->hwndListBox, FALSE);
}
@ -832,7 +941,6 @@ static HRESULT WINAPI IAutoComplete2_fnInit(
This, hwndEdit, punkACL, debugstr_w(pwzsRegKeyPath), debugstr_w(pwszQuickComplete));
if (This->options & ACO_SEARCH) FIXME(" ACO_SEARCH not supported\n");
if (This->options & ACO_FILTERPREFIXES) FIXME(" ACO_FILTERPREFIXES 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");
@ -965,6 +1073,7 @@ static HRESULT WINAPI IAutoComplete2_fnSetOptions(
DWORD dwFlag)
{
IAutoCompleteImpl *This = impl_from_IAutoComplete2(iface);
DWORD changed = This->options ^ dwFlag;
HRESULT hr = S_OK;
TRACE("(%p) -> (0x%x)\n", This, dwFlag);
@ -976,6 +1085,13 @@ static HRESULT WINAPI IAutoComplete2_fnSetOptions(
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;
}