shell32/autocomplete: Move the autocomplete processing and WM_KEYUP to separate functions.
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
Alexandre Julliard
parent
f2a8d53580
commit
779c513462
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@ -119,6 +119,76 @@ static size_t format_quick_complete(WCHAR *dst, const WCHAR *qc, const WCHAR *st
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return dst - base;
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}
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static void autocomplete_text(IAutoCompleteImpl *ac, WCHAR *text, UINT len, HWND hwnd, BOOL displayall)
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{
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HRESULT hr;
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UINT cpt;
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SendMessageW(ac->hwndListBox, LB_RESETCONTENT, 0, 0);
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/* Set txtbackup to point to text itself (which must not be released) */
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heap_free(ac->txtbackup);
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ac->txtbackup = text;
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if (!displayall && !len)
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return;
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IEnumString_Reset(ac->enumstr);
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for (cpt = 0;;)
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{
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LPOLESTR strs = NULL;
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ULONG fetched;
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hr = IEnumString_Next(ac->enumstr, 1, &strs, &fetched);
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if (hr != S_OK)
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break;
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if (!strncmpiW(text, strs, len))
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{
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if (cpt == 0 && (ac->options & ACO_AUTOAPPEND))
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{
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WCHAR buffW[255];
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strcpyW(buffW, text);
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strcatW(buffW, &strs[len]);
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SetWindowTextW(hwnd, buffW);
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SendMessageW(hwnd, EM_SETSEL, len, strlenW(strs));
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if (!(ac->options & ACO_AUTOSUGGEST))
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{
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CoTaskMemFree(strs);
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break;
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}
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}
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if (ac->options & ACO_AUTOSUGGEST)
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SendMessageW(ac->hwndListBox, LB_ADDSTRING, 0, (LPARAM)strs);
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cpt++;
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}
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CoTaskMemFree(strs);
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}
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if (ac->options & ACO_AUTOSUGGEST)
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{
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if (cpt)
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{
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RECT r;
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UINT height = SendMessageW(ac->hwndListBox, LB_GETITEMHEIGHT, 0, 0);
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SendMessageW(ac->hwndListBox, LB_CARETOFF, 0, 0);
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GetWindowRect(hwnd, &r);
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SetParent(ac->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(ac->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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ShowWindow(ac->hwndListBox, SW_HIDE);
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}
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}
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static void destroy_autocomplete_object(IAutoCompleteImpl *ac)
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{
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ac->hwndEdit = NULL;
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@ -127,18 +197,123 @@ static void destroy_autocomplete_object(IAutoCompleteImpl *ac)
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IAutoComplete2_Release(&ac->IAutoComplete2_iface);
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}
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/*
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Helper for ACEditSubclassProc
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*/
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static LRESULT ACEditSubclassProc_KeyUp(IAutoCompleteImpl *ac, HWND hwnd, UINT uMsg,
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WPARAM wParam, LPARAM lParam)
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{
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WCHAR *text;
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UINT len, size;
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BOOL displayall = FALSE;
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len = SendMessageW(hwnd, WM_GETTEXTLENGTH, 0, 0);
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size = len + 1;
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if (!(text = heap_alloc(size * sizeof(WCHAR))))
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return 0;
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len = SendMessageW(hwnd, WM_GETTEXT, size, (LPARAM)text);
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switch (wParam)
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{
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case VK_RETURN:
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/* If quickComplete is set and control is pressed, replace the string */
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if (ac->quickComplete && (GetKeyState(VK_CONTROL) & 0x8000))
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{
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WCHAR *buf;
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size_t sz = strlenW(ac->quickComplete) + 1 + len;
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if ((buf = heap_alloc(sz * sizeof(WCHAR))))
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{
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len = format_quick_complete(buf, ac->quickComplete, text, len);
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SendMessageW(hwnd, WM_SETTEXT, 0, (LPARAM)buf);
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SendMessageW(hwnd, EM_SETSEL, 0, len);
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heap_free(buf);
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}
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}
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if (ac->options & ACO_AUTOSUGGEST)
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ShowWindow(ac->hwndListBox, SW_HIDE);
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heap_free(text);
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return 0;
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case VK_LEFT:
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case VK_RIGHT:
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heap_free(text);
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return 0;
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case VK_UP:
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case VK_DOWN:
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/* Two cases here:
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- if the listbox is not visible and ACO_UPDOWNKEYDROPSLIST is
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set, display it with all the entries, without selecting any
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- if the listbox is visible, change the selection
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*/
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if ( (ac->options & (ACO_AUTOSUGGEST | ACO_UPDOWNKEYDROPSLIST))
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&& (!IsWindowVisible(ac->hwndListBox) && (! *text)) )
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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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INT count, sel;
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heap_free(text);
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if (!IsWindowVisible(ac->hwndListBox))
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return 0;
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count = SendMessageW(ac->hwndListBox, LB_GETCOUNT, 0, 0);
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/* Change the selection */
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sel = SendMessageW(ac->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(ac->hwndListBox, LB_SETCURSEL, sel, 0);
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if (sel >= 0)
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{
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WCHAR *msg;
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UINT len;
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len = SendMessageW(ac->hwndListBox, LB_GETTEXTLEN, sel, 0);
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if (!(msg = heap_alloc((len + 1) * sizeof(WCHAR))))
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return 0;
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len = SendMessageW(ac->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, len, len);
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heap_free(msg);
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}
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else
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{
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UINT len;
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SendMessageW(hwnd, WM_SETTEXT, 0, (LPARAM)ac->txtbackup);
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len = strlenW(ac->txtbackup);
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SendMessageW(hwnd, EM_SETSEL, len, len);
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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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if ((! *text) && (ac->options & ACO_AUTOSUGGEST))
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{
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heap_free(text);
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ShowWindow(ac->hwndListBox, SW_HIDE);
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return CallWindowProcW(ac->wpOrigEditProc, hwnd, uMsg, wParam, lParam);
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}
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break;
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}
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if (len + 1 != size)
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text = heap_realloc(text, (len + 1) * sizeof(WCHAR));
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autocomplete_text(ac, text, len, hwnd, displayall);
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return 0;
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}
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/*
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Window procedure for autocompletion
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*/
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static LRESULT APIENTRY ACEditSubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
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{
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IAutoCompleteImpl *This = GetPropW(hwnd, autocomplete_propertyW);
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HRESULT hr;
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WCHAR *hwndText;
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UINT len, size, cpt;
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RECT r;
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BOOL displayall = FALSE;
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int height, sel;
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if (!This->enabled) return CallWindowProcW(This->wpOrigEditProc, hwnd, uMsg, wParam, lParam);
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@ -155,154 +330,7 @@ static LRESULT APIENTRY ACEditSubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam,
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}
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return CallWindowProcW(This->wpOrigEditProc, hwnd, uMsg, wParam, lParam);
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case WM_KEYUP:
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len = SendMessageW(hwnd, WM_GETTEXTLENGTH, 0, 0);
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size = len + 1;
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if (!(hwndText = heap_alloc(size * sizeof(WCHAR))))
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return 0;
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len = SendMessageW(hwnd, WM_GETTEXT, size, (LPARAM)hwndText);
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switch(wParam) {
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case VK_RETURN:
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/* If quickComplete is set and control is pressed, replace the string */
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if (This->quickComplete && (GetKeyState(VK_CONTROL) & 0x8000))
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{
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WCHAR *buf;
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size_t sz = strlenW(This->quickComplete) + 1 + len;
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if ((buf = heap_alloc(sz * sizeof(WCHAR))))
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{
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len = format_quick_complete(buf, This->quickComplete, hwndText, len);
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SendMessageW(hwnd, WM_SETTEXT, 0, (LPARAM)buf);
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SendMessageW(hwnd, EM_SETSEL, 0, len);
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heap_free(buf);
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}
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}
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if (This->options & ACO_AUTOSUGGEST)
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ShowWindow(This->hwndListBox, SW_HIDE);
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heap_free(hwndText);
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return 0;
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case VK_LEFT:
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case VK_RIGHT:
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heap_free(hwndText);
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return 0;
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case VK_UP:
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case VK_DOWN:
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/* Two cases here :
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- if the listbox is not visible, displays it
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with all the entries if the style ACO_UPDOWNKEYDROPSLIST
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is present but does not select anything.
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- if the listbox is visible, change the selection
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*/
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if ( (This->options & (ACO_AUTOSUGGEST | ACO_UPDOWNKEYDROPSLIST))
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&& (!IsWindowVisible(This->hwndListBox) && (! *hwndText)) )
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{
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/* We must display all the entries */
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displayall = TRUE;
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} else {
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heap_free(hwndText);
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if (IsWindowVisible(This->hwndListBox)) {
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int count;
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count = SendMessageW(This->hwndListBox, LB_GETCOUNT, 0, 0);
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/* Change the selection */
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sel = SendMessageW(This->hwndListBox, LB_GETCURSEL, 0, 0);
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if (wParam == VK_UP)
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sel = ((sel-1) < 0) ? count-1 : sel-1;
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else
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sel = ((sel+1) >= count) ? -1 : sel+1;
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SendMessageW(This->hwndListBox, LB_SETCURSEL, sel, 0);
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if (sel != -1) {
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WCHAR *msg;
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int len;
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len = SendMessageW(This->hwndListBox, LB_GETTEXTLEN, sel, 0);
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if (!(msg = heap_alloc((len + 1) * sizeof(WCHAR))))
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return 0;
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len = SendMessageW(This->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, len, len);
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heap_free(msg);
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} else {
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UINT len;
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SendMessageW(hwnd, WM_SETTEXT, 0, (LPARAM)This->txtbackup);
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len = strlenW(This->txtbackup);
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SendMessageW(hwnd, EM_SETSEL, len, len);
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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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if ((! *hwndText) && (This->options & ACO_AUTOSUGGEST)) {
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heap_free(hwndText);
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ShowWindow(This->hwndListBox, SW_HIDE);
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return CallWindowProcW(This->wpOrigEditProc, hwnd, uMsg, wParam, lParam);
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}
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break;
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}
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if (len + 1 != size)
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hwndText = heap_realloc(hwndText, (len + 1) * sizeof(WCHAR));
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SendMessageW(This->hwndListBox, LB_RESETCONTENT, 0, 0);
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/* Set txtbackup to point to hwndText itself (which must not be released) */
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heap_free(This->txtbackup);
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This->txtbackup = hwndText;
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if (!displayall && !len)
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break;
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IEnumString_Reset(This->enumstr);
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for(cpt = 0;;) {
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LPOLESTR strs = NULL;
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ULONG fetched;
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hr = IEnumString_Next(This->enumstr, 1, &strs, &fetched);
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if (hr != S_OK)
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break;
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if (!strncmpiW(hwndText, strs, len)) {
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if (cpt == 0 && (This->options & ACO_AUTOAPPEND)) {
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WCHAR buffW[255];
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strcpyW(buffW, hwndText);
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strcatW(buffW, &strs[len]);
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SetWindowTextW(hwnd, buffW);
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SendMessageW(hwnd, EM_SETSEL, len, strlenW(strs));
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if (!(This->options & ACO_AUTOSUGGEST)) {
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CoTaskMemFree(strs);
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break;
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}
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}
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if (This->options & ACO_AUTOSUGGEST)
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SendMessageW(This->hwndListBox, LB_ADDSTRING, 0, (LPARAM)strs);
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cpt++;
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}
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CoTaskMemFree(strs);
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}
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if (This->options & ACO_AUTOSUGGEST) {
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if (cpt) {
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height = SendMessageW(This->hwndListBox, LB_GETITEMHEIGHT, 0, 0);
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SendMessageW(This->hwndListBox, LB_CARETOFF, 0, 0);
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GetWindowRect(hwnd, &r);
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SetParent(This->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(This->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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} else {
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ShowWindow(This->hwndListBox, SW_HIDE);
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}
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}
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break;
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return ACEditSubclassProc_KeyUp(This, hwnd, uMsg, wParam, lParam);
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case WM_DESTROY:
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{
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WNDPROC proc = This->wpOrigEditProc;
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