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shell32/autocomplete: Encapsulate the listbox into an owner window. 

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 2019-04-02 14:28:14 +03:00 committed by Alexandre Julliard
parent 3a3424280f
commit 6f3beaee37
1 changed files with 52 additions and 17 deletions
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69
dlls/shell32/autocomplete.c
View File

@ -63,8 +63,10 @@ typedef struct
WCHAR **enum_strs;
HWND hwndEdit;
HWND hwndListBox;
HWND hwndListBoxOwner;
WNDPROC wpOrigEditProc;
WNDPROC wpOrigLBoxProc;
WNDPROC wpOrigLBoxOwnerProc;
WCHAR *txtbackup;
WCHAR *quickComplete;
IEnumString *enumstr;
@ -283,7 +285,7 @@ static void free_enum_strs(IAutoCompleteImpl *ac)
static void hide_listbox(IAutoCompleteImpl *ac, HWND hwnd, BOOL reset)
{
ShowWindow(hwnd, SW_HIDE);
ShowWindow(ac->hwndListBoxOwner, SW_HIDE);
SendMessageW(hwnd, LB_RESETCONTENT, 0, 0);
if (reset) free_enum_strs(ac);
}
@ -301,7 +303,7 @@ static void show_listbox(IAutoCompleteImpl *ac)
height = SendMessageW(ac->hwndListBox, LB_GETITEMHEIGHT, 0, 0) * min(cnt + 1, 7);
width = r.right - r.left;
SetWindowPos(ac->hwndListBox, HWND_TOP, r.left, r.bottom + 1, width, height,
SetWindowPos(ac->hwndListBoxOwner, HWND_TOP, r.left, r.bottom + 1, width, height,
SWP_SHOWWINDOW | SWP_NOACTIVATE);
}
@ -338,7 +340,7 @@ static BOOL select_item_with_return_key(IAutoCompleteImpl *ac, HWND hwnd)
if (!(ac->options & ACO_AUTOSUGGEST))
return FALSE;
if (IsWindowVisible(hwndListBox))
if (IsWindowVisible(ac->hwndListBoxOwner))
{
INT sel = SendMessageW(hwndListBox, LB_GETCURSEL, 0, 0);
if (sel >= 0)
@ -612,8 +614,8 @@ static void destroy_autocomplete_object(IAutoCompleteImpl *ac)
{
ac->hwndEdit = NULL;
free_enum_strs(ac);
if (ac->hwndListBox)
DestroyWindow(ac->hwndListBox);
if (ac->hwndListBoxOwner)
DestroyWindow(ac->hwndListBoxOwner);
IAutoComplete2_Release(&ac->IAutoComplete2_iface);
}
@ -627,7 +629,7 @@ static LRESULT ACEditSubclassProc_KeyDown(IAutoCompleteImpl *ac, HWND hwnd, UINT
{
case VK_ESCAPE:
/* When pressing ESC, Windows hides the auto-suggest listbox, if visible */
if ((ac->options & ACO_AUTOSUGGEST) && IsWindowVisible(ac->hwndListBox))
if ((ac->options & ACO_AUTOSUGGEST) && IsWindowVisible(ac->hwndListBoxOwner))
{
hide_listbox(ac, ac->hwndListBox, FALSE);
ac->no_fwd_char = 0x1B; /* ESC char */
@ -666,7 +668,7 @@ static LRESULT ACEditSubclassProc_KeyDown(IAutoCompleteImpl *ac, HWND hwnd, UINT
break;
case VK_TAB:
if ((ac->options & (ACO_AUTOSUGGEST | ACO_USETAB)) == (ACO_AUTOSUGGEST | ACO_USETAB)
&& IsWindowVisible(ac->hwndListBox) && !(GetKeyState(VK_CONTROL) & 0x8000))
&& IsWindowVisible(ac->hwndListBoxOwner) && !(GetKeyState(VK_CONTROL) & 0x8000))
{
ac->no_fwd_char = '\t';
return change_selection(ac, hwnd, wParam);
@ -684,7 +686,7 @@ static LRESULT ACEditSubclassProc_KeyDown(IAutoCompleteImpl *ac, HWND hwnd, UINT
if (!(ac->options & ACO_AUTOSUGGEST))
break;
if (!IsWindowVisible(ac->hwndListBox))
if (!IsWindowVisible(ac->hwndListBoxOwner))
{
if (ac->options & ACO_UPDOWNKEYDROPSLIST)
{
@ -725,7 +727,9 @@ static LRESULT APIENTRY ACEditSubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam,
case WM_KILLFOCUS:
if (This->options & ACO_AUTOSUGGEST)
{
if ((HWND)wParam == This->hwndListBox) break;
if (This->hwndListBoxOwner == (HWND)wParam ||
This->hwndListBoxOwner == GetAncestor((HWND)wParam, GA_PARENT))
break;
hide_listbox(This, This->hwndListBox, FALSE);
}
@ -737,7 +741,7 @@ static LRESULT APIENTRY ACEditSubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam,
WINDOWPOS *pos = (WINDOWPOS*)lParam;
if ((pos->flags & (SWP_NOMOVE | SWP_NOSIZE)) != (SWP_NOMOVE | SWP_NOSIZE) &&
This->hwndListBox && IsWindowVisible(This->hwndListBox))
This->hwndListBoxOwner && IsWindowVisible(This->hwndListBoxOwner))
show_listbox(This);
break;
}
@ -772,7 +776,7 @@ static LRESULT APIENTRY ACEditSubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam,
? autoappend_flag_yes : autoappend_flag_no);
return ret;
case WM_MOUSEWHEEL:
if ((This->options & ACO_AUTOSUGGEST) && IsWindowVisible(This->hwndListBox))
if ((This->options & ACO_AUTOSUGGEST) && IsWindowVisible(This->hwndListBoxOwner))
return SendMessageW(This->hwndListBox, WM_MOUSEWHEEL, wParam, lParam);
break;
case WM_SETFONT:
@ -821,12 +825,37 @@ static LRESULT APIENTRY ACLBoxSubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam,
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_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_BORDER | WS_POPUP | WS_VSCROLL | LBS_HASSTRINGS | LBS_NOINTEGRALHEIGHT,
0, 0, 0, 0, NULL, NULL, shell32_hInstance, NULL);
WS_CHILD | WS_VISIBLE | WS_VSCROLL | LBS_HASSTRINGS | LBS_NOINTEGRALHEIGHT,
0, 0, 0, 0, This->hwndListBoxOwner, NULL, shell32_hInstance, NULL);
if (This->hwndListBox) {
HFONT edit_font;
@ -834,13 +863,19 @@ static void create_listbox(IAutoCompleteImpl *This)
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)
SendMessageW(This->hwndListBox, WM_SETFONT, (WPARAM)edit_font, FALSE);
return;
}
else
This->options &= ~ACO_AUTOSUGGEST;
DestroyWindow(This->hwndListBoxOwner);
This->hwndListBoxOwner = NULL;
This->options &= ~ACO_AUTOSUGGEST;
}
/**************************************************************************
@ -1148,7 +1183,7 @@ static HRESULT WINAPI IAutoCompleteDropDown_fnGetDropDownStatus(
TRACE("(%p) -> (%p, %p)\n", This, pdwFlags, ppwszString);
dropped = IsWindowVisible(This->hwndListBox);
dropped = IsWindowVisible(This->hwndListBoxOwner);
if (pdwFlags)
*pdwFlags = (dropped ? ACDD_VISIBLE : 0);
@ -1189,7 +1224,7 @@ static HRESULT WINAPI IAutoCompleteDropDown_fnResetEnumerator(
if (This->hwndEdit)
{
free_enum_strs(This);
if ((This->options & ACO_AUTOSUGGEST) && IsWindowVisible(This->hwndListBox))
if ((This->options & ACO_AUTOSUGGEST) && IsWindowVisible(This->hwndListBoxOwner))
autocomplete_text(This, This->hwndEdit, autoappend_flag_displayempty);
}
return S_OK;