Signed-off-by: Gabriel Ivăncescu gabrielopcode@gmail.com ---
v7: Add a space after for/switch.
dlls/shell32/autocomplete.c | 336 ++++++++++++++++++++++++-------------------- 1 file changed, 182 insertions(+), 154 deletions(-)
diff --git a/dlls/shell32/autocomplete.c b/dlls/shell32/autocomplete.c index 9f35ff7..874d831 100644 --- a/dlls/shell32/autocomplete.c +++ b/dlls/shell32/autocomplete.c @@ -119,6 +119,76 @@ static size_t format_quick_complete(WCHAR *dst, const WCHAR *qc, const WCHAR *st return dst - base; }
+static void autocomplete_text(IAutoCompleteImpl *ac, WCHAR *text, UINT len, HWND hwnd, BOOL displayall) +{ + HRESULT hr; + UINT cpt; + + SendMessageW(ac->hwndListBox, LB_RESETCONTENT, 0, 0); + + /* Set txtbackup to point to text itself (which must not be released) */ + heap_free(ac->txtbackup); + ac->txtbackup = text; + + if (!displayall && !len) + return; + + IEnumString_Reset(ac->enumstr); + for (cpt = 0;;) + { + LPOLESTR strs = NULL; + ULONG fetched; + + hr = IEnumString_Next(ac->enumstr, 1, &strs, &fetched); + if (hr != S_OK) + break; + + if (!strncmpiW(text, strs, len)) + { + if (cpt == 0 && (ac->options & ACO_AUTOAPPEND)) + { + WCHAR buffW[255]; + + strcpyW(buffW, text); + strcatW(buffW, &strs[len]); + SetWindowTextW(hwnd, buffW); + SendMessageW(hwnd, EM_SETSEL, len, strlenW(strs)); + if (!(ac->options & ACO_AUTOSUGGEST)) + { + CoTaskMemFree(strs); + break; + } + } + + if (ac->options & ACO_AUTOSUGGEST) + SendMessageW(ac->hwndListBox, LB_ADDSTRING, 0, (LPARAM)strs); + + cpt++; + } + + CoTaskMemFree(strs); + } + + if (ac->options & ACO_AUTOSUGGEST) + { + if (cpt) + { + RECT r; + UINT height = SendMessageW(ac->hwndListBox, LB_GETITEMHEIGHT, 0, 0); + SendMessageW(ac->hwndListBox, LB_CARETOFF, 0, 0); + GetWindowRect(hwnd, &r); + SetParent(ac->hwndListBox, HWND_DESKTOP); + /* It seems that Windows XP displays 7 lines at most + and otherwise displays a vertical scroll bar */ + SetWindowPos(ac->hwndListBox, HWND_TOP, + r.left, r.bottom + 1, r.right - r.left, min(height * 7, height*(cpt+1)), + SWP_SHOWWINDOW ); + } + else + ShowWindow(ac->hwndListBox, SW_HIDE); + } +} + static void destroy_autocomplete_object(IAutoCompleteImpl *ac) { ac->hwndEdit = NULL; @@ -128,17 +198,122 @@ static void destroy_autocomplete_object(IAutoCompleteImpl *ac) }
/* + Helper for ACEditSubclassProc +*/ +static LRESULT ACEditSubclassProc_KeyUp(IAutoCompleteImpl *ac, HWND hwnd, UINT uMsg, + WPARAM wParam, LPARAM lParam) +{ + WCHAR *text; + UINT len, size; + BOOL displayall = FALSE; + + len = SendMessageW(hwnd, WM_GETTEXTLENGTH, 0, 0); + size = len + 1; + if (!(text = heap_alloc(size * sizeof(WCHAR)))) + return 0; + len = SendMessageW(hwnd, WM_GETTEXT, size, (LPARAM)text); + + switch (wParam) + { + case VK_RETURN: + /* If quickComplete is set and control is pressed, replace the string */ + if (ac->quickComplete && (GetKeyState(VK_CONTROL) & 0x8000)) + { + WCHAR *buf; + size_t sz = strlenW(ac->quickComplete) + 1 + len; + if ((buf = heap_alloc(sz * sizeof(WCHAR)))) + { + len = format_quick_complete(buf, ac->quickComplete, text, len); + SendMessageW(hwnd, WM_SETTEXT, 0, (LPARAM)buf); + SendMessageW(hwnd, EM_SETSEL, 0, len); + heap_free(buf); + } + } + + if (ac->options & ACO_AUTOSUGGEST) + ShowWindow(ac->hwndListBox, SW_HIDE); + heap_free(text); + return 0; + case VK_LEFT: + case VK_RIGHT: + heap_free(text); + return 0; + case VK_UP: + case VK_DOWN: + /* 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 | ACO_UPDOWNKEYDROPSLIST)) + && (!IsWindowVisible(ac->hwndListBox) && (! *text)) ) + { + /* We must display all the entries */ + displayall = TRUE; + } + else + { + INT count, sel; + heap_free(text); + if (!IsWindowVisible(ac->hwndListBox)) + return 0; + + count = SendMessageW(ac->hwndListBox, LB_GETCOUNT, 0, 0); + + /* Change the selection */ + sel = SendMessageW(ac->hwndListBox, LB_GETCURSEL, 0, 0); + if (wParam == VK_UP) + sel = ((sel - 1) < 0) ? count - 1 : sel - 1; + else + sel = ((sel + 1) >= count) ? -1 : sel + 1; + SendMessageW(ac->hwndListBox, LB_SETCURSEL, sel, 0); + if (sel >= 0) + { + WCHAR *msg; + UINT len; + + len = SendMessageW(ac->hwndListBox, LB_GETTEXTLEN, sel, 0); + if (!(msg = heap_alloc((len + 1) * sizeof(WCHAR)))) + return 0; + len = SendMessageW(ac->hwndListBox, LB_GETTEXT, sel, (LPARAM)msg); + SendMessageW(hwnd, WM_SETTEXT, 0, (LPARAM)msg); + SendMessageW(hwnd, EM_SETSEL, len, len); + heap_free(msg); + } + else + { + UINT len; + SendMessageW(hwnd, WM_SETTEXT, 0, (LPARAM)ac->txtbackup); + len = strlenW(ac->txtbackup); + SendMessageW(hwnd, EM_SETSEL, len, len); + } + return 0; + } + break; + case VK_BACK: + case VK_DELETE: + if ((! *text) && (ac->options & ACO_AUTOSUGGEST)) + { + heap_free(text); + ShowWindow(ac->hwndListBox, SW_HIDE); + return CallWindowProcW(ac->wpOrigEditProc, hwnd, uMsg, wParam, lParam); + } + break; + } + + if (len + 1 != size) + text = heap_realloc(text, (len + 1) * sizeof(WCHAR)); + + autocomplete_text(ac, text, len, hwnd, displayall); + return 0; +} + +/* Window procedure for autocompletion */ static LRESULT APIENTRY ACEditSubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) { IAutoCompleteImpl *This = GetPropW(hwnd, autocomplete_propertyW); - HRESULT hr; - WCHAR *hwndText; - UINT len, size, cpt; - RECT r; - BOOL displayall = FALSE; - int height, sel;
if (!This->enabled) return CallWindowProcW(This->wpOrigEditProc, hwnd, uMsg, wParam, lParam);
@@ -155,154 +330,7 @@ static LRESULT APIENTRY ACEditSubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, } return CallWindowProcW(This->wpOrigEditProc, hwnd, uMsg, wParam, lParam); case WM_KEYUP: - len = SendMessageW(hwnd, WM_GETTEXTLENGTH, 0, 0); - size = len + 1; - if (!(hwndText = heap_alloc(size * sizeof(WCHAR)))) - return 0; - len = SendMessageW(hwnd, WM_GETTEXT, size, (LPARAM)hwndText); - - switch(wParam) { - case VK_RETURN: - /* If quickComplete is set and control is pressed, replace the string */ - if (This->quickComplete && (GetKeyState(VK_CONTROL) & 0x8000)) - { - WCHAR *buf; - size_t sz = strlenW(This->quickComplete) + 1 + len; - if ((buf = heap_alloc(sz * sizeof(WCHAR)))) - { - len = format_quick_complete(buf, This->quickComplete, hwndText, len); - SendMessageW(hwnd, WM_SETTEXT, 0, (LPARAM)buf); - SendMessageW(hwnd, EM_SETSEL, 0, len); - heap_free(buf); - } - } - - if (This->options & ACO_AUTOSUGGEST) - ShowWindow(This->hwndListBox, SW_HIDE); - heap_free(hwndText); - return 0; - case VK_LEFT: - case VK_RIGHT: - heap_free(hwndText); - return 0; - case VK_UP: - case VK_DOWN: - /* Two cases here : - - if the listbox is not visible, displays it - with all the entries if the style ACO_UPDOWNKEYDROPSLIST - is present but does not select anything. - - if the listbox is visible, change the selection - */ - if ( (This->options & (ACO_AUTOSUGGEST | ACO_UPDOWNKEYDROPSLIST)) - && (!IsWindowVisible(This->hwndListBox) && (! *hwndText)) ) - { - /* We must display all the entries */ - displayall = TRUE; - } else { - heap_free(hwndText); - if (IsWindowVisible(This->hwndListBox)) { - int count; - - count = SendMessageW(This->hwndListBox, LB_GETCOUNT, 0, 0); - /* Change the selection */ - sel = SendMessageW(This->hwndListBox, LB_GETCURSEL, 0, 0); - if (wParam == VK_UP) - sel = ((sel-1) < 0) ? count-1 : sel-1; - else - sel = ((sel+1) >= count) ? -1 : sel+1; - SendMessageW(This->hwndListBox, LB_SETCURSEL, sel, 0); - if (sel != -1) { - WCHAR *msg; - int len; - - len = SendMessageW(This->hwndListBox, LB_GETTEXTLEN, sel, 0); - if (!(msg = heap_alloc((len + 1) * sizeof(WCHAR)))) - return 0; - len = SendMessageW(This->hwndListBox, LB_GETTEXT, sel, (LPARAM)msg); - SendMessageW(hwnd, WM_SETTEXT, 0, (LPARAM)msg); - SendMessageW(hwnd, EM_SETSEL, len, len); - heap_free(msg); - } else { - UINT len; - SendMessageW(hwnd, WM_SETTEXT, 0, (LPARAM)This->txtbackup); - len = strlenW(This->txtbackup); - SendMessageW(hwnd, EM_SETSEL, len, len); - } - } - return 0; - } - break; - case VK_BACK: - case VK_DELETE: - if ((! *hwndText) && (This->options & ACO_AUTOSUGGEST)) { - heap_free(hwndText); - ShowWindow(This->hwndListBox, SW_HIDE); - return CallWindowProcW(This->wpOrigEditProc, hwnd, uMsg, wParam, lParam); - } - break; - } - - if (len + 1 != size) - hwndText = heap_realloc(hwndText, (len + 1) * sizeof(WCHAR)); - - SendMessageW(This->hwndListBox, LB_RESETCONTENT, 0, 0); - - /* Set txtbackup to point to hwndText itself (which must not be released) */ - heap_free(This->txtbackup); - This->txtbackup = hwndText; - - if (!displayall && !len) - break; - - IEnumString_Reset(This->enumstr); - for(cpt = 0;;) { - LPOLESTR strs = NULL; - ULONG fetched; - - hr = IEnumString_Next(This->enumstr, 1, &strs, &fetched); - if (hr != S_OK) - break; - - if (!strncmpiW(hwndText, strs, len)) { - if (cpt == 0 && (This->options & ACO_AUTOAPPEND)) { - WCHAR buffW[255]; - - strcpyW(buffW, hwndText); - strcatW(buffW, &strs[len]); - SetWindowTextW(hwnd, buffW); - SendMessageW(hwnd, EM_SETSEL, len, strlenW(strs)); - if (!(This->options & ACO_AUTOSUGGEST)) { - CoTaskMemFree(strs); - break; - } - } - - if (This->options & ACO_AUTOSUGGEST) - SendMessageW(This->hwndListBox, LB_ADDSTRING, 0, (LPARAM)strs); - - cpt++; - } - - CoTaskMemFree(strs); - } - - if (This->options & ACO_AUTOSUGGEST) { - if (cpt) { - height = SendMessageW(This->hwndListBox, LB_GETITEMHEIGHT, 0, 0); - SendMessageW(This->hwndListBox, LB_CARETOFF, 0, 0); - GetWindowRect(hwnd, &r); - SetParent(This->hwndListBox, HWND_DESKTOP); - /* It seems that Windows XP displays 7 lines at most - and otherwise displays a vertical scroll bar */ - SetWindowPos(This->hwndListBox, HWND_TOP, - r.left, r.bottom + 1, r.right - r.left, min(height * 7, height*(cpt+1)), - SWP_SHOWWINDOW ); - } else { - ShowWindow(This->hwndListBox, SW_HIDE); - } - } - - break; + return ACEditSubclassProc_KeyUp(This, hwnd, uMsg, wParam, lParam); case WM_DESTROY: { WNDPROC proc = This->wpOrigEditProc;