dlls/user32/tests/combo.c

   1 /* Unit test suite for combo boxes.
   2  *
   3  * Copyright 2007 Mikolaj Zalewski
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  18  */
  19
  20 #include <limits.h>
  21 #include <stdarg.h>
  22 #include <stdio.h>
  23
  24 #define STRICT
  25 #define WIN32_LEAN_AND_MEAN
  26 #include <windows.h>
  27
  28 #include "wine/test.h"
  29
  30 #define COMBO_ID 1995
  31
  32 #define COMBO_YBORDERSIZE() 2
  33
  34 static HWND hMainWnd;
  35
  36 #define expect_eq(expr, value, type, fmt); { type val = expr; ok(val == (value), #expr " expected " #fmt " got " #fmt "\n", (value), val); }
  37 #define expect_rect(r, _left, _top, _right, _bottom) ok(r.left == _left && r.top == _top && \
  38     r.bottom == _bottom && r.right == _right, "Invalid rect %s vs (%d,%d)-(%d,%d)\n", \
  39     wine_dbgstr_rect(&r), _left, _top, _right, _bottom);
  40
  41 static HWND build_combo(DWORD style)
  42 {
  43     return CreateWindowA("ComboBox", "Combo", WS_VISIBLE|WS_CHILD|style, 5, 5, 100, 100, hMainWnd, (HMENU)COMBO_ID, NULL, 0);
  44 }
  45
  46 static int font_height(HFONT hFont)
  47 {
  48     TEXTMETRICA tm;
  49     HFONT hFontOld;
  50     HDC hDC;
  51
  52     hDC = CreateCompatibleDC(NULL);
  53     hFontOld = SelectObject(hDC, hFont);
  54     GetTextMetricsA(hDC, &tm);
  55     SelectObject(hDC, hFontOld);
  56     DeleteDC(hDC);
  57
  58     return tm.tmHeight;
  59 }
  60
  61 static INT CALLBACK is_font_installed_proc(const LOGFONTA *elf, const TEXTMETRICA *tm, DWORD type, LPARAM lParam)
  62 {
  63     return 0;
  64 }
  65
  66 static BOOL is_font_installed(const char *name)
  67 {
  68     HDC hdc = GetDC(NULL);
  69     BOOL ret = !EnumFontFamiliesA(hdc, name, is_font_installed_proc, 0);
  70     ReleaseDC(NULL, hdc);
  71     return ret;
  72 }
  73
  74 static void test_setitemheight(DWORD style)
  75 {
  76     HWND hCombo = build_combo(style);
  77     RECT r;
  78     int i;
  79
  80     trace("Style %x\n", style);
  81     GetClientRect(hCombo, &r);
  82     expect_rect(r, 0, 0, 100, font_height(GetStockObject(SYSTEM_FONT)) + 8);
  83     SendMessageA(hCombo, CB_GETDROPPEDCONTROLRECT, 0, (LPARAM)&r);
  84     MapWindowPoints(HWND_DESKTOP, hMainWnd, (LPPOINT)&r, 2);
  85     todo_wine expect_rect(r, 5, 5, 105, 105);
  86
  87     for (i = 1; i < 30; i++)
  88     {
  89         SendMessageA(hCombo, CB_SETITEMHEIGHT, -1, i);
  90         GetClientRect(hCombo, &r);
  91         expect_eq(r.bottom - r.top, i + 6, int, "%d");
  92     }
  93
  94     DestroyWindow(hCombo);
  95 }
  96
  97 static void test_setfont(DWORD style)
  98 {
  99     HWND hCombo;
 100     HFONT hFont1, hFont2;
 101     RECT r;
 102     int i;
 103
 104     if (!is_font_installed("Marlett"))
 105     {
 106         skip("Marlett font not available\n");
 107         return;
 108     }
 109
 110     trace("Style %x\n", style);
 111
 112     hCombo = build_combo(style);
 113     hFont1 = CreateFontA(10, 0, 0, 0, FW_DONTCARE, FALSE, FALSE, FALSE, SYMBOL_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH|FF_DONTCARE, "Marlett");
 114     hFont2 = CreateFontA(8, 0, 0, 0, FW_DONTCARE, FALSE, FALSE, FALSE, SYMBOL_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH|FF_DONTCARE, "Marlett");
 115
 116     GetClientRect(hCombo, &r);
 117     expect_rect(r, 0, 0, 100, font_height(GetStockObject(SYSTEM_FONT)) + 8);
 118     SendMessageA(hCombo, CB_GETDROPPEDCONTROLRECT, 0, (LPARAM)&r);
 119     MapWindowPoints(HWND_DESKTOP, hMainWnd, (LPPOINT)&r, 2);
 120     todo_wine expect_rect(r, 5, 5, 105, 105);
 121
 122     /* The size of the dropped control is initially equal to the size
 123        of the window when it was created.  The size of the calculated
 124        dropped area changes only by how much the selection area
 125        changes, not by how much the list area changes.  */
 126     if (font_height(hFont1) == 10 && font_height(hFont2) == 8)
 127     {
 128         SendMessageA(hCombo, WM_SETFONT, (WPARAM)hFont1, FALSE);
 129         GetClientRect(hCombo, &r);
 130         expect_rect(r, 0, 0, 100, 18);
 131         SendMessageA(hCombo, CB_GETDROPPEDCONTROLRECT, 0, (LPARAM)&r);
 132         MapWindowPoints(HWND_DESKTOP, hMainWnd, (LPPOINT)&r, 2);
 133         todo_wine expect_rect(r, 5, 5, 105, 105 - (font_height(GetStockObject(SYSTEM_FONT)) - font_height(hFont1)));
 134
 135         SendMessageA(hCombo, WM_SETFONT, (WPARAM)hFont2, FALSE);
 136         GetClientRect(hCombo, &r);
 137         expect_rect(r, 0, 0, 100, 16);
 138         SendMessageA(hCombo, CB_GETDROPPEDCONTROLRECT, 0, (LPARAM)&r);
 139         MapWindowPoints(HWND_DESKTOP, hMainWnd, (LPPOINT)&r, 2);
 140         todo_wine expect_rect(r, 5, 5, 105, 105 - (font_height(GetStockObject(SYSTEM_FONT)) - font_height(hFont2)));
 141
 142         SendMessageA(hCombo, WM_SETFONT, (WPARAM)hFont1, FALSE);
 143         GetClientRect(hCombo, &r);
 144         expect_rect(r, 0, 0, 100, 18);
 145         SendMessageA(hCombo, CB_GETDROPPEDCONTROLRECT, 0, (LPARAM)&r);
 146         MapWindowPoints(HWND_DESKTOP, hMainWnd, (LPPOINT)&r, 2);
 147         todo_wine expect_rect(r, 5, 5, 105, 105 - (font_height(GetStockObject(SYSTEM_FONT)) - font_height(hFont1)));
 148     }
 149     else
 150     {
 151         ok(0, "Expected Marlett font heights 10/8, got %d/%d\n",
 152            font_height(hFont1), font_height(hFont2));
 153     }
 154
 155     for (i = 1; i < 30; i++)
 156     {
 157         HFONT hFont = CreateFontA(i, 0, 0, 0, FW_DONTCARE, FALSE, FALSE, FALSE, SYMBOL_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH|FF_DONTCARE, "Marlett");
 158         int height = font_height(hFont);
 159
 160         SendMessageA(hCombo, WM_SETFONT, (WPARAM)hFont, FALSE);
 161         GetClientRect(hCombo, &r);
 162         expect_eq(r.bottom - r.top, height + 8, int, "%d");
 163         SendMessageA(hCombo, WM_SETFONT, 0, FALSE);
 164         DeleteObject(hFont);
 165     }
 166
 167     DestroyWindow(hCombo);
 168     DeleteObject(hFont1);
 169     DeleteObject(hFont2);
 170 }
 171
 172 static LRESULT (CALLBACK *old_parent_proc)(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam);
 173 static LPCSTR expected_edit_text;
 174 static LPCSTR expected_list_text;
 175 static BOOL selchange_fired;
 176
 177 static LRESULT CALLBACK parent_wnd_proc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam)
 178 {
 179     switch (msg)
 180     {
 181     case WM_COMMAND:
 182         switch (wparam)
 183         {
 184             case MAKEWPARAM(COMBO_ID, CBN_SELCHANGE):
 185             {
 186                 HWND hCombo = (HWND)lparam;
 187                 int idx;
 188                 char list[20], edit[20];
 189
 190                 memset(list, 0, sizeof(list));
 191                 memset(edit, 0, sizeof(edit));
 192
 193                 idx = SendMessageA(hCombo, CB_GETCURSEL, 0, 0);
 194                 SendMessageA(hCombo, CB_GETLBTEXT, idx, (LPARAM)list);
 195                 SendMessageA(hCombo, WM_GETTEXT, sizeof(edit), (LPARAM)edit);
 196
 197                 ok(!strcmp(edit, expected_edit_text), "edit: got %s, expected %s\n",
 198                    edit, expected_edit_text);
 199                 ok(!strcmp(list, expected_list_text), "list: got %s, expected %s\n",
 200                    list, expected_list_text);
 201
 202                 selchange_fired = TRUE;
 203             }
 204             break;
 205         }
 206         break;
 207     }
 208
 209     return CallWindowProcA(old_parent_proc, hwnd, msg, wparam, lparam);
 210 }
 211
 212 static void test_selection(DWORD style, const char * const text[],
 213                            const int *edit, const int *list)
 214 {
 215     INT idx;
 216     HWND hCombo;
 217
 218     hCombo = build_combo(style);
 219
 220     SendMessageA(hCombo, CB_ADDSTRING, 0, (LPARAM)text[0]);
 221     SendMessageA(hCombo, CB_ADDSTRING, 0, (LPARAM)text[1]);
 222     SendMessageA(hCombo, CB_SETCURSEL, -1, 0);
 223
 224     old_parent_proc = (void *)SetWindowLongPtrA(hMainWnd, GWLP_WNDPROC, (ULONG_PTR)parent_wnd_proc);
 225
 226     idx = SendMessageA(hCombo, CB_GETCURSEL, 0, 0);
 227     ok(idx == -1, "expected selection -1, got %d\n", idx);
 228
 229     /* keyboard navigation */
 230
 231     expected_list_text = text[list[0]];
 232     expected_edit_text = text[edit[0]];
 233     selchange_fired = FALSE;
 234     SendMessageA(hCombo, WM_KEYDOWN, VK_DOWN, 0);
 235     ok(selchange_fired, "CBN_SELCHANGE not sent!\n");
 236
 237     expected_list_text = text[list[1]];
 238     expected_edit_text = text[edit[1]];
 239     selchange_fired = FALSE;
 240     SendMessageA(hCombo, WM_KEYDOWN, VK_DOWN, 0);
 241     ok(selchange_fired, "CBN_SELCHANGE not sent!\n");
 242
 243     expected_list_text = text[list[2]];
 244     expected_edit_text = text[edit[2]];
 245     selchange_fired = FALSE;
 246     SendMessageA(hCombo, WM_KEYDOWN, VK_UP, 0);
 247     ok(selchange_fired, "CBN_SELCHANGE not sent!\n");
 248
 249     /* programmatic navigation */
 250
 251     expected_list_text = text[list[3]];
 252     expected_edit_text = text[edit[3]];
 253     selchange_fired = FALSE;
 254     SendMessageA(hCombo, CB_SETCURSEL, list[3], 0);
 255     ok(!selchange_fired, "CBN_SELCHANGE sent!\n");
 256
 257     expected_list_text = text[list[4]];
 258     expected_edit_text = text[edit[4]];
 259     selchange_fired = FALSE;
 260     SendMessageA(hCombo, CB_SETCURSEL, list[4], 0);
 261     ok(!selchange_fired, "CBN_SELCHANGE sent!\n");
 262
 263     SetWindowLongPtrA(hMainWnd, GWLP_WNDPROC, (ULONG_PTR)old_parent_proc);
 264     DestroyWindow(hCombo);
 265 }
 266
 267 static void test_CBN_SELCHANGE(void)
 268 {
 269     static const char * const text[] = { "alpha", "beta", "" };
 270     static const int sel_1[] = { 2, 0, 1, 0, 1 };
 271     static const int sel_2[] = { 0, 1, 0, 0, 1 };
 272
 273     test_selection(CBS_SIMPLE, text, sel_1, sel_2);
 274     test_selection(CBS_DROPDOWN, text, sel_1, sel_2);
 275     test_selection(CBS_DROPDOWNLIST, text, sel_2, sel_2);
 276 }
 277
 278 static void test_WM_LBUTTONDOWN(void)
 279 {
 280     HWND hCombo, hEdit, hList;
 281     COMBOBOXINFO cbInfo;
 282     UINT x, y, item_height;
 283     LRESULT result;
 284     int i, idx;
 285     RECT rect;
 286     CHAR buffer[3];
 287     static const UINT choices[] = {8,9,10,11,12,14,16,18,20,22,24,26,28,36,48,72};
 288     static const CHAR stringFormat[] = "%2d";
 289     BOOL ret;
 290     BOOL (WINAPI *pGetComboBoxInfo)(HWND, PCOMBOBOXINFO);
 291
 292     pGetComboBoxInfo = (void*)GetProcAddress(GetModuleHandleA("user32.dll"), "GetComboBoxInfo");
 293     if (!pGetComboBoxInfo){
 294         win_skip("GetComboBoxInfo is not available\n");
 295         return;
 296     }
 297
 298     hCombo = CreateWindowA("ComboBox", "Combo", WS_VISIBLE|WS_CHILD|CBS_DROPDOWN,
 299             0, 0, 200, 150, hMainWnd, (HMENU)COMBO_ID, NULL, 0);
 300
 301     for (i = 0; i < sizeof(choices)/sizeof(UINT); i++){
 302         sprintf(buffer, stringFormat, choices[i]);
 303         result = SendMessageA(hCombo, CB_ADDSTRING, 0, (LPARAM)buffer);
 304         ok(result == i,
 305            "Failed to add item %d\n", i);
 306     }
 307
 308     cbInfo.cbSize = sizeof(COMBOBOXINFO);
 309     SetLastError(0xdeadbeef);
 310     ret = pGetComboBoxInfo(hCombo, &cbInfo);
 311     ok(ret, "Failed to get combobox info structure. LastError=%d\n",
 312        GetLastError());
 313     hEdit = cbInfo.hwndItem;
 314     hList = cbInfo.hwndList;
 315
 316     trace("hMainWnd=%p, hCombo=%p, hList=%p, hEdit=%p\n", hMainWnd, hCombo, hList, hEdit);
 317     ok(GetFocus() == hMainWnd, "Focus not on Main Window, instead on %p\n", GetFocus());
 318
 319     /* Click on the button to drop down the list */
 320     x = cbInfo.rcButton.left + (cbInfo.rcButton.right-cbInfo.rcButton.left)/2;
 321     y = cbInfo.rcButton.top + (cbInfo.rcButton.bottom-cbInfo.rcButton.top)/2;
 322     result = SendMessageA(hCombo, WM_LBUTTONDOWN, 0, MAKELPARAM(x, y));
 323     ok(result, "WM_LBUTTONDOWN was not processed. LastError=%d\n",
 324        GetLastError());
 325     ok(SendMessageA(hCombo, CB_GETDROPPEDSTATE, 0, 0),
 326        "The dropdown list should have appeared after clicking the button.\n");
 327
 328     ok(GetFocus() == hEdit,
 329        "Focus not on ComboBox's Edit Control, instead on %p\n", GetFocus());
 330     result = SendMessageA(hCombo, WM_LBUTTONUP, 0, MAKELPARAM(x, y));
 331     ok(result, "WM_LBUTTONUP was not processed. LastError=%d\n",
 332        GetLastError());
 333     ok(GetFocus() == hEdit,
 334        "Focus not on ComboBox's Edit Control, instead on %p\n", GetFocus());
 335
 336     /* Click on the 5th item in the list */
 337     item_height = SendMessageA(hCombo, CB_GETITEMHEIGHT, 0, 0);
 338     ok(GetClientRect(hList, &rect), "Failed to get list's client rect.\n");
 339     x = rect.left + (rect.right-rect.left)/2;
 340     y = item_height/2 + item_height*4;
 341     result = SendMessageA(hList, WM_LBUTTONDOWN, 0, MAKELPARAM(x, y));
 342     ok(!result, "WM_LBUTTONDOWN was not processed. LastError=%d\n",
 343        GetLastError());
 344     ok(GetFocus() == hEdit,
 345        "Focus not on ComboBox's Edit Control, instead on %p\n", GetFocus());
 346
 347     result = SendMessageA(hList, WM_MOUSEMOVE, 0, MAKELPARAM(x, y));
 348     ok(!result, "WM_MOUSEMOVE was not processed. LastError=%d\n",
 349        GetLastError());
 350     ok(GetFocus() == hEdit,
 351        "Focus not on ComboBox's Edit Control, instead on %p\n", GetFocus());
 352     ok(SendMessageA(hCombo, CB_GETDROPPEDSTATE, 0, 0),
 353        "The dropdown list should still be visible.\n");
 354
 355     result = SendMessageA(hList, WM_LBUTTONUP, 0, MAKELPARAM(x, y));
 356     ok(!result, "WM_LBUTTONUP was not processed. LastError=%d\n",
 357        GetLastError());
 358     ok(GetFocus() == hEdit,
 359        "Focus not on ComboBox's Edit Control, instead on %p\n", GetFocus());
 360     ok(!SendMessageA(hCombo, CB_GETDROPPEDSTATE, 0, 0),
 361        "The dropdown list should have been rolled up.\n");
 362     idx = SendMessageA(hCombo, CB_GETCURSEL, 0, 0);
 363     ok(idx, "Current Selection: expected %d, got %d\n", 4, idx);
 364
 365     DestroyWindow(hCombo);
 366 }
 367
 368 static void test_changesize( DWORD style)
 369 {
 370     HWND hCombo = build_combo(style);
 371     RECT rc;
 372     INT ddheight, clheight, ddwidth, clwidth;
 373     /* get initial measurements */
 374     GetClientRect( hCombo, &rc);
 375     clheight = rc.bottom - rc.top;
 376     clwidth = rc.right - rc.left;
 377     SendMessageA(hCombo, CB_GETDROPPEDCONTROLRECT, 0, (LPARAM)&rc);
 378     ddheight = rc.bottom - rc.top;
 379     ddwidth = rc.right - rc.left;
 380     /* use MoveWindow to move & resize the combo */
 381     /* first make it slightly smaller */
 382     MoveWindow( hCombo, 10, 10, clwidth - 2, clheight - 2, TRUE);
 383     GetClientRect( hCombo, &rc);
 384     ok( rc.right - rc.left == clwidth - 2, "clientrect width is %d vs %d\n",
 385             rc.right - rc.left, clwidth - 2);
 386     ok( rc.bottom - rc.top == clheight, "clientrect height is %d vs %d\n",
 387                 rc.bottom - rc.top, clheight);
 388     SendMessageA(hCombo, CB_GETDROPPEDCONTROLRECT, 0, (LPARAM)&rc);
 389     ok( rc.right - rc.left == clwidth - 2, "drop-down rect width is %d vs %d\n",
 390             rc.right - rc.left, clwidth - 2);
 391     ok( rc.bottom - rc.top == ddheight, "drop-down rect height is %d vs %d\n",
 392             rc.bottom - rc.top, ddheight);
 393     ok( rc.right - rc.left == ddwidth -2, "drop-down rect width is %d vs %d\n",
 394             rc.right - rc.left, ddwidth - 2);
 395     /* new cx, cy is slightly bigger than the initial values */
 396     MoveWindow( hCombo, 10, 10, clwidth + 2, clheight + 2, TRUE);
 397     GetClientRect( hCombo, &rc);
 398     ok( rc.right - rc.left == clwidth + 2, "clientrect width is %d vs %d\n",
 399             rc.right - rc.left, clwidth + 2);
 400     ok( rc.bottom - rc.top == clheight, "clientrect height is %d vs %d\n",
 401             rc.bottom - rc.top, clheight);
 402     SendMessageA(hCombo, CB_GETDROPPEDCONTROLRECT, 0, (LPARAM)&rc);
 403     ok( rc.right - rc.left == clwidth + 2, "drop-down rect width is %d vs %d\n",
 404             rc.right - rc.left, clwidth + 2);
 405     todo_wine {
 406         ok( rc.bottom - rc.top == clheight + 2, "drop-down rect height is %d vs %d\n",
 407                 rc.bottom - rc.top, clheight + 2);
 408     }
 409
 410     ddwidth = SendMessageA(hCombo, CB_SETDROPPEDWIDTH, -1, 0);
 411     ok( ddwidth == clwidth + 2, "drop-width is %d vs %d\n", ddwidth, clwidth + 2);
 412     ddwidth = SendMessageA(hCombo, CB_GETDROPPEDWIDTH, 0, 0);
 413     ok( ddwidth == clwidth + 2, "drop-width is %d vs %d\n", ddwidth, clwidth + 2);
 414
 415     ddwidth = SendMessageA(hCombo, CB_SETDROPPEDWIDTH, 0, 0);
 416     ok( ddwidth == clwidth + 2, "drop-width is %d vs %d\n", ddwidth, clwidth + 2);
 417     ddwidth = SendMessageA(hCombo, CB_GETDROPPEDWIDTH, 0, 0);
 418     ok( ddwidth == clwidth + 2, "drop-width is %d vs %d\n", ddwidth, clwidth + 2);
 419
 420     ddwidth = SendMessageA(hCombo, CB_SETDROPPEDWIDTH, clwidth - 1, 0);
 421     ok( ddwidth == clwidth + 2, "drop-width is %d vs %d\n", ddwidth, clwidth + 2);
 422     ddwidth = SendMessageA(hCombo, CB_GETDROPPEDWIDTH, 0, 0);
 423     ok( ddwidth == clwidth + 2, "drop-width is %d vs %d\n", ddwidth, clwidth + 2);
 424
 425     ddwidth = SendMessageA(hCombo, CB_SETDROPPEDWIDTH, clwidth << 1, 0);
 426     ok( ddwidth == (clwidth << 1), "drop-width is %d vs %d\n", ddwidth, clwidth << 1);
 427     ddwidth = SendMessageA(hCombo, CB_GETDROPPEDWIDTH, 0, 0);
 428     ok( ddwidth == (clwidth << 1), "drop-width is %d vs %d\n", ddwidth, clwidth << 1);
 429
 430     ddwidth = SendMessageA(hCombo, CB_SETDROPPEDWIDTH, 0, 0);
 431     ok( ddwidth == (clwidth << 1), "drop-width is %d vs %d\n", ddwidth, clwidth << 1);
 432     ddwidth = SendMessageA(hCombo, CB_GETDROPPEDWIDTH, 0, 0);
 433     ok( ddwidth == (clwidth << 1), "drop-width is %d vs %d\n", ddwidth, clwidth << 1);
 434
 435     ddwidth = SendMessageA(hCombo, CB_SETDROPPEDWIDTH, 1, 0);
 436     ok( ddwidth == clwidth + 2, "drop-width is %d vs %d\n", ddwidth, clwidth + 2);
 437     ddwidth = SendMessageA(hCombo, CB_GETDROPPEDWIDTH, 0, 0);
 438     ok( ddwidth == clwidth + 2, "drop-width is %d vs %d\n", ddwidth, clwidth + 2);
 439
 440     DestroyWindow(hCombo);
 441 }
 442
 443 static void test_editselection(void)
 444 {
 445     HWND hCombo;
 446     INT start,end;
 447     HWND hEdit;
 448     COMBOBOXINFO cbInfo;
 449     BOOL ret;
 450     DWORD len;
 451     BOOL (WINAPI *pGetComboBoxInfo)(HWND, PCOMBOBOXINFO);
 452     char edit[20];
 453
 454     pGetComboBoxInfo = (void*)GetProcAddress(GetModuleHandleA("user32.dll"), "GetComboBoxInfo");
 455     if (!pGetComboBoxInfo){
 456         win_skip("GetComboBoxInfo is not available\n");
 457         return;
 458     }
 459
 460     /* Build a combo */
 461     hCombo = build_combo(CBS_SIMPLE);
 462     cbInfo.cbSize = sizeof(COMBOBOXINFO);
 463     SetLastError(0xdeadbeef);
 464     ret = pGetComboBoxInfo(hCombo, &cbInfo);
 465     ok(ret, "Failed to get combobox info structure. LastError=%d\n",
 466        GetLastError());
 467     hEdit = cbInfo.hwndItem;
 468
 469     /* Initially combo selection is empty*/
 470     len = SendMessageA(hCombo, CB_GETEDITSEL, 0,0);
 471     ok(LOWORD(len)==0, "Unexpected start position for selection %d\n", LOWORD(len));
 472     ok(HIWORD(len)==0, "Unexpected end position for selection %d\n", HIWORD(len));
 473
 474     /* Set some text, and press a key to replace it */
 475     edit[0] = 0x00;
 476     SendMessageA(hCombo, WM_SETTEXT, 0, (LPARAM)"Jason1");
 477     SendMessageA(hCombo, WM_GETTEXT, sizeof(edit), (LPARAM)edit);
 478     ok(strcmp(edit, "Jason1")==0, "Unexpected text retrieved %s\n", edit);
 479
 480     /* Now what is the selection - still empty */
 481     SendMessageA(hCombo, CB_GETEDITSEL, (WPARAM)&start, (WPARAM)&end);
 482     ok(start==0, "Unexpected start position for selection %d\n", start);
 483     ok(end==0, "Unexpected end position for selection %d\n", end);
 484     len = SendMessageA(hCombo, CB_GETEDITSEL, 0,0);
 485     ok(LOWORD(len)==0, "Unexpected start position for selection %d\n", LOWORD(len));
 486     ok(HIWORD(len)==0, "Unexpected end position for selection %d\n", HIWORD(len));
 487
 488     /* Give it focus, and it gets selected */
 489     SendMessageA(hCombo, WM_SETFOCUS, 0, (LPARAM)hEdit);
 490     SendMessageA(hCombo, CB_GETEDITSEL, (WPARAM)&start, (WPARAM)&end);
 491     ok(start==0, "Unexpected start position for selection %d\n", start);
 492     ok(end==6, "Unexpected end position for selection %d\n", end);
 493     len = SendMessageA(hCombo, CB_GETEDITSEL, 0,0);
 494     ok(LOWORD(len)==0, "Unexpected start position for selection %d\n", LOWORD(len));
 495     ok(HIWORD(len)==6, "Unexpected end position for selection %d\n", HIWORD(len));
 496
 497     /* Now emulate a key press */
 498     edit[0] = 0x00;
 499     SendMessageA(hCombo, WM_CHAR, 'A', 0x1c0001);
 500     SendMessageA(hCombo, WM_GETTEXT, sizeof(edit), (LPARAM)edit);
 501     ok(strcmp(edit, "A")==0, "Unexpected text retrieved %s\n", edit);
 502
 503     len = SendMessageA(hCombo, CB_GETEDITSEL, 0,0);
 504     ok(LOWORD(len)==1, "Unexpected start position for selection %d\n", LOWORD(len));
 505     ok(HIWORD(len)==1, "Unexpected end position for selection %d\n", HIWORD(len));
 506
 507     /* Now what happens when it gets more focus a second time - it doesn't reselect */
 508     SendMessageA(hCombo, WM_SETFOCUS, 0, (LPARAM)hEdit);
 509     len = SendMessageA(hCombo, CB_GETEDITSEL, 0,0);
 510     ok(LOWORD(len)==1, "Unexpected start position for selection %d\n", LOWORD(len));
 511     ok(HIWORD(len)==1, "Unexpected end position for selection %d\n", HIWORD(len));
 512     DestroyWindow(hCombo);
 513
 514     /* Start again - Build a combo */
 515     hCombo = build_combo(CBS_SIMPLE);
 516     cbInfo.cbSize = sizeof(COMBOBOXINFO);
 517     SetLastError(0xdeadbeef);
 518     ret = pGetComboBoxInfo(hCombo, &cbInfo);
 519     ok(ret, "Failed to get combobox info structure. LastError=%d\n",
 520        GetLastError());
 521     hEdit = cbInfo.hwndItem;
 522
 523     /* Set some text and give focus so it gets selected */
 524     edit[0] = 0x00;
 525     SendMessageA(hCombo, WM_SETTEXT, 0, (LPARAM)"Jason2");
 526     SendMessageA(hCombo, WM_GETTEXT, sizeof(edit), (LPARAM)edit);
 527     ok(strcmp(edit, "Jason2")==0, "Unexpected text retrieved %s\n", edit);
 528
 529     SendMessageA(hCombo, WM_SETFOCUS, 0, (LPARAM)hEdit);
 530
 531     /* Now what is the selection */
 532     SendMessageA(hCombo, CB_GETEDITSEL, (WPARAM)&start, (WPARAM)&end);
 533     ok(start==0, "Unexpected start position for selection %d\n", start);
 534     ok(end==6, "Unexpected end position for selection %d\n", end);
 535     len = SendMessageA(hCombo, CB_GETEDITSEL, 0,0);
 536     ok(LOWORD(len)==0, "Unexpected start position for selection %d\n", LOWORD(len));
 537     ok(HIWORD(len)==6, "Unexpected end position for selection %d\n", HIWORD(len));
 538
 539     /* Now change the selection to the apparently invalid start -1, end -1 and
 540        show it means no selection (ie start -1) but cursor at end              */
 541     SendMessageA(hCombo, CB_SETEDITSEL, 0, -1);
 542     edit[0] = 0x00;
 543     SendMessageA(hCombo, WM_CHAR, 'A', 0x1c0001);
 544     SendMessageA(hCombo, WM_GETTEXT, sizeof(edit), (LPARAM)edit);
 545     ok(strcmp(edit, "Jason2A")==0, "Unexpected text retrieved %s\n", edit);
 546     DestroyWindow(hCombo);
 547 }
 548
 549 static WNDPROC edit_window_proc;
 550 static long setsel_start = 1, setsel_end = 1;
 551 static HWND hCBN_SetFocus, hCBN_KillFocus;
 552
 553 static LRESULT CALLBACK combobox_subclass_proc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
 554 {
 555     if (msg == EM_SETSEL)
 556     {
 557         setsel_start = wParam;
 558         setsel_end = lParam;
 559     }
 560     return CallWindowProcA(edit_window_proc, hwnd, msg, wParam, lParam);
 561 }
 562
 563 static LRESULT CALLBACK test_window_proc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
 564 {
 565     switch (msg)
 566     {
 567     case WM_COMMAND:
 568         switch (HIWORD(wParam))
 569         {
 570         case CBN_SETFOCUS:
 571             hCBN_SetFocus = (HWND)lParam;
 572             break;
 573         case CBN_KILLFOCUS:
 574             hCBN_KillFocus = (HWND)lParam;
 575             break;
 576         }
 577         break;
 578     case WM_NEXTDLGCTL:
 579         SetFocus((HWND)wParam);
 580         break;
 581     }
 582     return CallWindowProcA(old_parent_proc, hwnd, msg, wParam, lParam);
 583 }
 584
 585 static void test_editselection_focus(DWORD style)
 586 {
 587     BOOL (WINAPI *pGetComboBoxInfo)(HWND, PCOMBOBOXINFO);
 588     HWND hCombo, hEdit, hButton;
 589     COMBOBOXINFO cbInfo;
 590     BOOL ret;
 591     const char wine_test[] = "Wine Test";
 592     char buffer[16] = {0};
 593     DWORD len;
 594
 595     pGetComboBoxInfo = (void *)GetProcAddress(GetModuleHandleA("user32.dll"), "GetComboBoxInfo");
 596     if (!pGetComboBoxInfo)
 597     {
 598         win_skip("GetComboBoxInfo is not available\n");
 599         return;
 600     }
 601
 602     hCombo = build_combo(style);
 603     cbInfo.cbSize = sizeof(COMBOBOXINFO);
 604     SetLastError(0xdeadbeef);
 605     ret = pGetComboBoxInfo(hCombo, &cbInfo);
 606     ok(ret, "Failed to get COMBOBOXINFO structure; LastError: %u\n", GetLastError());
 607     hEdit = cbInfo.hwndItem;
 608
 609     hButton = CreateWindowA("Button", "OK", WS_VISIBLE|WS_CHILD|BS_DEFPUSHBUTTON,
 610                             5, 50, 100, 20, hMainWnd, NULL,
 611                             (HINSTANCE)GetWindowLongPtrA(hMainWnd, GWLP_HINSTANCE), NULL);
 612
 613     old_parent_proc = (WNDPROC)SetWindowLongPtrA(hMainWnd, GWLP_WNDPROC, (ULONG_PTR)test_window_proc);
 614     edit_window_proc = (WNDPROC)SetWindowLongPtrA(hEdit, GWLP_WNDPROC, (ULONG_PTR)combobox_subclass_proc);
 615
 616     SendMessageA(hCombo, WM_SETFOCUS, 0, (LPARAM)hEdit);
 617     ok(setsel_start == 0, "Unexpected EM_SETSEL start value; got %ld\n", setsel_start);
 618     todo_wine ok(setsel_end == INT_MAX, "Unexpected EM_SETSEL end value; got %ld\n", setsel_end);
 619     ok(hCBN_SetFocus == hCombo, "Wrong handle set by CBN_SETFOCUS; got %p\n", hCBN_SetFocus);
 620     ok(GetFocus() == hEdit, "hEdit should have keyboard focus\n");
 621
 622     SendMessageA(hMainWnd, WM_NEXTDLGCTL, (WPARAM)hButton, TRUE);
 623     ok(setsel_start == 0, "Unexpected EM_SETSEL start value; got %ld\n", setsel_start);
 624     todo_wine ok(setsel_end == 0, "Unexpected EM_SETSEL end value; got %ld\n", setsel_end);
 625     ok(hCBN_KillFocus == hCombo, "Wrong handle set by CBN_KILLFOCUS; got %p\n", hCBN_KillFocus);
 626     ok(GetFocus() == hButton, "hButton should have keyboard focus\n");
 627
 628     SendMessageA(hCombo, WM_SETTEXT, 0, (LPARAM)wine_test);
 629     SendMessageA(hMainWnd, WM_NEXTDLGCTL, (WPARAM)hCombo, TRUE);
 630     ok(setsel_start == 0, "Unexpected EM_SETSEL start value; got %ld\n", setsel_start);
 631     todo_wine ok(setsel_end == INT_MAX, "Unexpected EM_SETSEL end value; got %ld\n", setsel_end);
 632     ok(hCBN_SetFocus == hCombo, "Wrong handle set by CBN_SETFOCUS; got %p\n", hCBN_SetFocus);
 633     ok(GetFocus() == hEdit, "hEdit should have keyboard focus\n");
 634     SendMessageA(hCombo, WM_GETTEXT, sizeof(buffer), (LPARAM)buffer);
 635     ok(!strcmp(buffer, wine_test), "Unexpected text in edit control; got '%s'\n", buffer);
 636
 637     SendMessageA(hMainWnd, WM_NEXTDLGCTL, (WPARAM)hButton, TRUE);
 638     ok(setsel_start == 0, "Unexpected EM_SETSEL start value; got %ld\n", setsel_start);
 639     todo_wine ok(setsel_end == 0, "Unexpected EM_SETSEL end value; got %ld\n", setsel_end);
 640     ok(hCBN_KillFocus == hCombo, "Wrong handle set by CBN_KILLFOCUS; got %p\n", hCBN_KillFocus);
 641     ok(GetFocus() == hButton, "hButton should have keyboard focus\n");
 642     len = SendMessageA(hCombo, CB_GETEDITSEL, 0, 0);
 643     ok(len == 0, "Unexpected text selection; start: %u, end: %u\n", LOWORD(len), HIWORD(len));
 644
 645     SetWindowLongPtrA(hMainWnd, GWLP_WNDPROC, (ULONG_PTR)old_parent_proc);
 646     DestroyWindow(hButton);
 647     DestroyWindow(hCombo);
 648 }
 649
 650 static void test_listbox_styles(DWORD cb_style)
 651 {
 652     BOOL (WINAPI *pGetComboBoxInfo)(HWND, PCOMBOBOXINFO);
 653     HWND combo;
 654     COMBOBOXINFO info;
 655     DWORD style, exstyle, expect_style, expect_exstyle;
 656     BOOL ret;
 657
 658     pGetComboBoxInfo = (void*)GetProcAddress(GetModuleHandleA("user32.dll"), "GetComboBoxInfo");
 659     if (!pGetComboBoxInfo){
 660         win_skip("GetComboBoxInfo is not available\n");
 661         return;
 662     }
 663
 664     expect_style = WS_CHILD|WS_CLIPSIBLINGS|LBS_COMBOBOX|LBS_HASSTRINGS|LBS_NOTIFY;
 665     if (cb_style == CBS_SIMPLE)
 666     {
 667         expect_style |= WS_VISIBLE;
 668         expect_exstyle = WS_EX_CLIENTEDGE;
 669     }
 670     else
 671     {
 672         expect_style |= WS_BORDER;
 673         expect_exstyle = WS_EX_TOOLWINDOW;
 674     }
 675
 676     combo = build_combo(cb_style);
 677     info.cbSize = sizeof(COMBOBOXINFO);
 678     SetLastError(0xdeadbeef);
 679     ret = pGetComboBoxInfo(combo, &info);
 680     ok(ret, "Failed to get combobox info structure.\n");
 681
 682     style = GetWindowLongW( info.hwndList, GWL_STYLE );
 683     exstyle = GetWindowLongW( info.hwndList, GWL_EXSTYLE );
 684     ok(style == expect_style, "%08x: got %08x\n", cb_style, style);
 685     ok(exstyle == expect_exstyle, "%08x: got %08x\n", cb_style, exstyle);
 686
 687     if (cb_style != CBS_SIMPLE)
 688         expect_exstyle |= WS_EX_TOPMOST;
 689
 690     SendMessageW(combo, CB_SHOWDROPDOWN, TRUE, 0 );
 691     style = GetWindowLongW( info.hwndList, GWL_STYLE );
 692     exstyle = GetWindowLongW( info.hwndList, GWL_EXSTYLE );
 693     ok(style == (expect_style | WS_VISIBLE), "%08x: got %08x\n", cb_style, style);
 694     ok(exstyle == expect_exstyle, "%08x: got %08x\n", cb_style, exstyle);
 695
 696     SendMessageW(combo, CB_SHOWDROPDOWN, FALSE, 0 );
 697     style = GetWindowLongW( info.hwndList, GWL_STYLE );
 698     exstyle = GetWindowLongW( info.hwndList, GWL_EXSTYLE );
 699     ok(style == expect_style, "%08x: got %08x\n", cb_style, style);
 700     ok(exstyle == expect_exstyle, "%08x: got %08x\n", cb_style, exstyle);
 701
 702     DestroyWindow(combo);
 703 }
 704
 705 static void test_listbox_size(DWORD style)
 706 {
 707     BOOL (WINAPI *pGetComboBoxInfo)(HWND, PCOMBOBOXINFO);
 708     HWND hCombo, hList;
 709     COMBOBOXINFO cbInfo;
 710     UINT x, y;
 711     BOOL ret;
 712     int i, test;
 713     const char wine_test[] = "Wine Test";
 714
 715     static const struct list_size_info
 716     {
 717         int num_items;
 718         int height_combo;
 719         BOOL todo;
 720     } info_height[] = {
 721         {2, 24, TRUE},
 722         {2, 41, TRUE},
 723         {2, 42, TRUE},
 724         {2, 50, TRUE},
 725         {2, 60},
 726         {2, 80},
 727         {2, 89},
 728         {2, 90},
 729         {2, 100},
 730
 731         {10, 24, TRUE},
 732         {10, 41, TRUE},
 733         {10, 42, TRUE},
 734         {10, 50, TRUE},
 735         {10, 60, TRUE},
 736         {10, 80, TRUE},
 737         {10, 89, TRUE},
 738         {10, 90, TRUE},
 739         {10, 100, TRUE},
 740     };
 741
 742     pGetComboBoxInfo = (void *)GetProcAddress(GetModuleHandleA("user32.dll"), "GetComboBoxInfo");
 743     if (!pGetComboBoxInfo)
 744     {
 745         win_skip("GetComboBoxInfo is not available\n");
 746         return;
 747     }
 748
 749     for(test = 0; test < sizeof(info_height) / sizeof(info_height[0]); test++)
 750     {
 751         const struct list_size_info *info_test = &info_height[test];
 752         int height_item; /* Height of a list item */
 753         int height_list; /* Height of the list we got */
 754         int expected_count_list;
 755         int expected_height_list;
 756         int list_height_nonclient;
 757         int list_height_calculated;
 758         RECT rect_list_client, rect_list_complete;
 759
 760         hCombo = CreateWindowA("ComboBox", "Combo", WS_VISIBLE|WS_CHILD|style, 5, 5, 100,
 761                                info_test->height_combo, hMainWnd, (HMENU)COMBO_ID, NULL, 0);
 762
 763         cbInfo.cbSize = sizeof(COMBOBOXINFO);
 764         SetLastError(0xdeadbeef);
 765         ret = pGetComboBoxInfo(hCombo, &cbInfo);
 766         ok(ret, "Failed to get COMBOBOXINFO structure; LastError: %u\n", GetLastError());
 767
 768         hList = cbInfo.hwndList;
 769         for (i = 0; i < info_test->num_items; i++)
 770             SendMessageA(hCombo, CB_ADDSTRING, 0, (LPARAM) wine_test);
 771
 772         /* Click on the button to drop down the list */
 773         x = cbInfo.rcButton.left + (cbInfo.rcButton.right-cbInfo.rcButton.left)/2;
 774         y = cbInfo.rcButton.top + (cbInfo.rcButton.bottom-cbInfo.rcButton.top)/2;
 775         ret = SendMessageA(hCombo, WM_LBUTTONDOWN, 0, MAKELPARAM(x, y));
 776         ok(ret, "WM_LBUTTONDOWN was not processed. LastError=%d\n",
 777            GetLastError());
 778         ok(SendMessageA(hCombo, CB_GETDROPPEDSTATE, 0, 0),
 779            "The dropdown list should have appeared after clicking the button.\n");
 780
 781         GetClientRect(hList, &rect_list_client);
 782         GetWindowRect(hList, &rect_list_complete);
 783         height_list = rect_list_client.bottom - rect_list_client.top;
 784         height_item = (int)SendMessageA(hList, LB_GETITEMHEIGHT, 0, 0);
 785
 786         list_height_nonclient = (rect_list_complete.bottom - rect_list_complete.top)
 787                                 - (rect_list_client.bottom - rect_list_client.top);
 788
 789         /* Calculate the expected client size of the listbox popup from the size of the combobox. */
 790         list_height_calculated = info_test->height_combo
 791                 - (cbInfo.rcItem.bottom + COMBO_YBORDERSIZE())
 792                 - list_height_nonclient
 793                 - 1;
 794
 795         expected_count_list = list_height_calculated / height_item;
 796         if(expected_count_list < 0)
 797             expected_count_list = 0;
 798         expected_count_list = min(expected_count_list, info_test->num_items);
 799         expected_height_list = expected_count_list * height_item;
 800
 801         todo_wine_if(info_test->todo)
 802         ok(expected_height_list == height_list,
 803            "Test %d, expected list height to be %d, got %d\n", test, expected_height_list, height_list);
 804
 805         DestroyWindow(hCombo);
 806     }
 807 }
 808
 809 void test_WS_VSCROLL(void)
 810 {
 811     BOOL (WINAPI *pGetComboBoxInfo)(HWND, PCOMBOBOXINFO);
 812     HWND hCombo, hList;
 813     COMBOBOXINFO info;
 814     DWORD style;
 815     BOOL ret;
 816     int i;
 817
 818     pGetComboBoxInfo = (void *)GetProcAddress(GetModuleHandleA("user32.dll"), "GetComboBoxInfo");
 819     if (!pGetComboBoxInfo)
 820     {
 821         win_skip("GetComboBoxInfo is not available\n");
 822         return;
 823     }
 824     info.cbSize = sizeof(info);
 825     hCombo = build_combo(CBS_DROPDOWNLIST);
 826
 827     SetLastError(0xdeadbeef);
 828     ret = pGetComboBoxInfo(hCombo, &info);
 829     ok(ret, "Failed to get COMBOBOXINFO structure; LastError: %u\n", GetLastError());
 830     hList = info.hwndList;
 831
 832     for(i = 0; i < 3; i++)
 833     {
 834         char buffer[2];
 835         sprintf(buffer, "%d", i);
 836         SendMessageA(hCombo, CB_ADDSTRING, 0, (LPARAM)buffer);
 837     }
 838
 839     style = GetWindowLongA(info.hwndList, GWL_STYLE);
 840     SetWindowLongA(hList, GWL_STYLE, style | WS_VSCROLL);
 841
 842     SendMessageA(hCombo, CB_SHOWDROPDOWN, TRUE, 0);
 843     SendMessageA(hCombo, CB_SHOWDROPDOWN, FALSE, 0);
 844
 845     style = GetWindowLongA(hList, GWL_STYLE);
 846     ok((style & WS_VSCROLL) != 0, "Style does not include WS_VSCROLL\n");
 847
 848     DestroyWindow(hCombo);
 849 }
 850
 851 START_TEST(combo)
 852 {
 853     hMainWnd = CreateWindowA("static", "Test", WS_OVERLAPPEDWINDOW, 10, 10, 300, 300, NULL, NULL, NULL, 0);
 854     ShowWindow(hMainWnd, SW_SHOW);
 855
 856     test_WS_VSCROLL();
 857     test_setfont(CBS_DROPDOWN);
 858     test_setfont(CBS_DROPDOWNLIST);
 859     test_setitemheight(CBS_DROPDOWN);
 860     test_setitemheight(CBS_DROPDOWNLIST);
 861     test_CBN_SELCHANGE();
 862     test_WM_LBUTTONDOWN();
 863     test_changesize(CBS_DROPDOWN);
 864     test_changesize(CBS_DROPDOWNLIST);
 865     test_editselection();
 866     test_editselection_focus(CBS_SIMPLE);
 867     test_editselection_focus(CBS_DROPDOWN);
 868     test_listbox_styles(CBS_SIMPLE);
 869     test_listbox_styles(CBS_DROPDOWN);
 870     test_listbox_styles(CBS_DROPDOWNLIST);
 871     test_listbox_size(CBS_DROPDOWN);
 872
 873     DestroyWindow(hMainWnd);
 874 }