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 <assert.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 static HWND hMainWnd;
  33
  34 #define expect_eq(expr, value, type, fmt); { type val = expr; ok(val == (value), #expr " expected " #fmt " got " #fmt "\n", (value), val); }
  35 #define expect_rect(r, _left, _top, _right, _bottom) ok(r.left == _left && r.top == _top && \
  36     r.bottom == _bottom && r.right == _right, "Invalid rect (%d,%d) (%d,%d) vs (%d,%d) (%d,%d)\n", \
  37     r.left, r.top, r.right, r.bottom, _left, _top, _right, _bottom);
  38
  39 static HWND build_combo(DWORD style)
  40 {
  41     return CreateWindow("ComboBox", "Combo", WS_VISIBLE|WS_CHILD|style, 5, 5, 100, 100, hMainWnd, (HMENU)COMBO_ID, NULL, 0);
  42 }
  43
  44 static int font_height(HFONT hFont)
  45 {
  46     TEXTMETRIC tm;
  47     HFONT hFontOld;
  48     HDC hDC;
  49
  50     hDC = CreateCompatibleDC(NULL);
  51     hFontOld = SelectObject(hDC, hFont);
  52     GetTextMetrics(hDC, &tm);
  53     SelectObject(hDC, hFontOld);
  54     DeleteDC(hDC);
  55
  56     return tm.tmHeight;
  57 }
  58
  59 static INT CALLBACK is_font_installed_proc(const LOGFONT *elf, const TEXTMETRIC *tm, DWORD type, LPARAM lParam)
  60 {
  61     return 0;
  62 }
  63
  64 static int is_font_installed(const char *name)
  65 {
  66     HDC hdc = GetDC(NULL);
  67     BOOL ret = !EnumFontFamilies(hdc, name, is_font_installed_proc, 0);
  68     ReleaseDC(NULL, hdc);
  69     return ret;
  70 }
  71
  72 static void test_setitemheight(DWORD style)
  73 {
  74     HWND hCombo = build_combo(style);
  75     RECT r;
  76     int i;
  77
  78     trace("Style %x\n", style);
  79     GetClientRect(hCombo, &r);
  80     expect_rect(r, 0, 0, 100, 24);
  81     SendMessageA(hCombo, CB_GETDROPPEDCONTROLRECT, 0, (LPARAM)&r);
  82     MapWindowPoints(HWND_DESKTOP, hMainWnd, (LPPOINT)&r, 2);
  83     todo_wine expect_rect(r, 5, 5, 105, 105);
  84
  85     for (i = 1; i < 30; i++)
  86     {
  87         SendMessage(hCombo, CB_SETITEMHEIGHT, -1, i);
  88         GetClientRect(hCombo, &r);
  89         expect_eq(r.bottom - r.top, i + 6, int, "%d");
  90     }
  91
  92     DestroyWindow(hCombo);
  93 }
  94
  95 static void test_setfont(DWORD style)
  96 {
  97     HWND hCombo;
  98     HFONT hFont1, hFont2;
  99     RECT r;
 100     int i;
 101
 102     if (!is_font_installed("Marlett"))
 103     {
 104         skip("Marlett font not available\n");
 105         return;
 106     }
 107
 108     trace("Style %x\n", style);
 109
 110     hCombo = build_combo(style);
 111     hFont1 = CreateFont(10, 0, 0, 0, FW_DONTCARE, FALSE, FALSE, FALSE, SYMBOL_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH|FF_DONTCARE, "Marlett");
 112     hFont2 = CreateFont(8, 0, 0, 0, FW_DONTCARE, FALSE, FALSE, FALSE, SYMBOL_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH|FF_DONTCARE, "Marlett");
 113
 114     GetClientRect(hCombo, &r);
 115     expect_rect(r, 0, 0, 100, 24);
 116     SendMessageA(hCombo, CB_GETDROPPEDCONTROLRECT, 0, (LPARAM)&r);
 117     MapWindowPoints(HWND_DESKTOP, hMainWnd, (LPPOINT)&r, 2);
 118     todo_wine expect_rect(r, 5, 5, 105, 105);
 119
 120     if (font_height(hFont1) == 10 && font_height(hFont2) == 8)
 121     {
 122         SendMessage(hCombo, WM_SETFONT, (WPARAM)hFont1, FALSE);
 123         GetClientRect(hCombo, &r);
 124         expect_rect(r, 0, 0, 100, 18);
 125         SendMessageA(hCombo, CB_GETDROPPEDCONTROLRECT, 0, (LPARAM)&r);
 126         MapWindowPoints(HWND_DESKTOP, hMainWnd, (LPPOINT)&r, 2);
 127         todo_wine expect_rect(r, 5, 5, 105, 99);
 128
 129         SendMessage(hCombo, WM_SETFONT, (WPARAM)hFont2, FALSE);
 130         GetClientRect(hCombo, &r);
 131         expect_rect(r, 0, 0, 100, 16);
 132         SendMessageA(hCombo, CB_GETDROPPEDCONTROLRECT, 0, (LPARAM)&r);
 133         MapWindowPoints(HWND_DESKTOP, hMainWnd, (LPPOINT)&r, 2);
 134         todo_wine expect_rect(r, 5, 5, 105, 97);
 135
 136         SendMessage(hCombo, WM_SETFONT, (WPARAM)hFont1, FALSE);
 137         GetClientRect(hCombo, &r);
 138         expect_rect(r, 0, 0, 100, 18);
 139         SendMessageA(hCombo, CB_GETDROPPEDCONTROLRECT, 0, (LPARAM)&r);
 140         MapWindowPoints(HWND_DESKTOP, hMainWnd, (LPPOINT)&r, 2);
 141         todo_wine expect_rect(r, 5, 5, 105, 99);
 142     }
 143     else
 144     {
 145         ok(0, "Expected Marlett font heights 10/8, got %d/%d\n",
 146            font_height(hFont1), font_height(hFont2));
 147     }
 148
 149     for (i = 1; i < 30; i++)
 150     {
 151         HFONT hFont = CreateFont(i, 0, 0, 0, FW_DONTCARE, FALSE, FALSE, FALSE, SYMBOL_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH|FF_DONTCARE, "Marlett");
 152         int height = font_height(hFont);
 153
 154         SendMessage(hCombo, WM_SETFONT, (WPARAM)hFont, FALSE);
 155         GetClientRect(hCombo, &r);
 156         expect_eq(r.bottom - r.top, height + 8, int, "%d");
 157         SendMessage(hCombo, WM_SETFONT, 0, FALSE);
 158         DeleteObject(hFont);
 159     }
 160
 161     DestroyWindow(hCombo);
 162     DeleteObject(hFont1);
 163     DeleteObject(hFont2);
 164 }
 165
 166 static LRESULT (CALLBACK *old_parent_proc)(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam);
 167 static LPCSTR expected_edit_text;
 168 static LPCSTR expected_list_text;
 169 static BOOL selchange_fired;
 170
 171 static LRESULT CALLBACK parent_wnd_proc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam)
 172 {
 173     switch (msg)
 174     {
 175     case WM_COMMAND:
 176         switch (wparam)
 177         {
 178             case MAKEWPARAM(COMBO_ID, CBN_SELCHANGE):
 179             {
 180                 HWND hCombo = (HWND)lparam;
 181                 int idx;
 182                 char list[20], edit[20];
 183
 184                 memset(list, 0, sizeof(list));
 185                 memset(edit, 0, sizeof(edit));
 186
 187                 idx = SendMessage(hCombo, CB_GETCURSEL, 0, 0);
 188                 SendMessage(hCombo, CB_GETLBTEXT, idx, (LPARAM)list);
 189                 SendMessage(hCombo, WM_GETTEXT, sizeof(edit), (LPARAM)edit);
 190
 191                 ok(!strcmp(edit, expected_edit_text), "edit: got %s, expected %s\n",
 192                    edit, expected_edit_text);
 193                 ok(!strcmp(list, expected_list_text), "list: got %s, expected %s\n",
 194                    list, expected_list_text);
 195
 196                 selchange_fired = TRUE;
 197             }
 198             break;
 199         }
 200         break;
 201     }
 202
 203     return CallWindowProc(old_parent_proc, hwnd, msg, wparam, lparam);
 204 }
 205
 206 static void test_selection(DWORD style, const char * const text[],
 207                            const int *edit, const int *list)
 208 {
 209     INT idx;
 210     HWND hCombo;
 211
 212     hCombo = build_combo(style);
 213
 214     SendMessage(hCombo, CB_ADDSTRING, 0, (LPARAM)text[0]);
 215     SendMessage(hCombo, CB_ADDSTRING, 0, (LPARAM)text[1]);
 216     SendMessage(hCombo, CB_SETCURSEL, -1, 0);
 217
 218     old_parent_proc = (void *)SetWindowLongPtr(hMainWnd, GWLP_WNDPROC, (ULONG_PTR)parent_wnd_proc);
 219
 220     idx = SendMessage(hCombo, CB_GETCURSEL, 0, 0);
 221     ok(idx == -1, "expected selection -1, got %d\n", idx);
 222
 223     /* keyboard navigation */
 224
 225     expected_list_text = text[list[0]];
 226     expected_edit_text = text[edit[0]];
 227     selchange_fired = FALSE;
 228     SendMessage(hCombo, WM_KEYDOWN, VK_DOWN, 0);
 229     ok(selchange_fired, "CBN_SELCHANGE not sent!\n");
 230
 231     expected_list_text = text[list[1]];
 232     expected_edit_text = text[edit[1]];
 233     selchange_fired = FALSE;
 234     SendMessage(hCombo, WM_KEYDOWN, VK_DOWN, 0);
 235     ok(selchange_fired, "CBN_SELCHANGE not sent!\n");
 236
 237     expected_list_text = text[list[2]];
 238     expected_edit_text = text[edit[2]];
 239     selchange_fired = FALSE;
 240     SendMessage(hCombo, WM_KEYDOWN, VK_UP, 0);
 241     ok(selchange_fired, "CBN_SELCHANGE not sent!\n");
 242
 243     /* programmatic navigation */
 244
 245     expected_list_text = text[list[3]];
 246     expected_edit_text = text[edit[3]];
 247     selchange_fired = FALSE;
 248     SendMessage(hCombo, CB_SETCURSEL, list[3], 0);
 249     ok(!selchange_fired, "CBN_SELCHANGE sent!\n");
 250
 251     expected_list_text = text[list[4]];
 252     expected_edit_text = text[edit[4]];
 253     selchange_fired = FALSE;
 254     SendMessage(hCombo, CB_SETCURSEL, list[4], 0);
 255     ok(!selchange_fired, "CBN_SELCHANGE sent!\n");
 256
 257     SetWindowLongPtr(hMainWnd, GWLP_WNDPROC, (ULONG_PTR)old_parent_proc);
 258     DestroyWindow(hCombo);
 259 }
 260
 261 static void test_CBN_SELCHANGE(void)
 262 {
 263     static const char * const text[] = { "alpha", "beta", "" };
 264     static const int sel_1[] = { 2, 0, 1, 0, 1 };
 265     static const int sel_2[] = { 0, 1, 0, 0, 1 };
 266
 267     test_selection(CBS_SIMPLE, text, sel_1, sel_2);
 268     test_selection(CBS_DROPDOWN, text, sel_1, sel_2);
 269     test_selection(CBS_DROPDOWNLIST, text, sel_2, sel_2);
 270 }
 271
 272 static void test_WM_LBUTTONDOWN(void)
 273 {
 274     HWND hCombo, hEdit, hList;
 275     COMBOBOXINFO cbInfo;
 276     UINT x, y, item_height;
 277     LRESULT result;
 278     int i, idx;
 279     RECT rect;
 280     CHAR buffer[3];
 281     static const UINT choices[] = {8,9,10,11,12,14,16,18,20,22,24,26,28,36,48,72};
 282     static const CHAR stringFormat[] = "%2d";
 283     BOOL ret;
 284     BOOL (WINAPI *pGetComboBoxInfo)(HWND, PCOMBOBOXINFO);
 285
 286     pGetComboBoxInfo = (void*)GetProcAddress(GetModuleHandleA("user32.dll"), "GetComboBoxInfo");
 287     if (!pGetComboBoxInfo){
 288         win_skip("GetComboBoxInfo is not available\n");
 289         return;
 290     }
 291
 292     hCombo = CreateWindow("ComboBox", "Combo", WS_VISIBLE|WS_CHILD|CBS_DROPDOWN,
 293             0, 0, 200, 150, hMainWnd, (HMENU)COMBO_ID, NULL, 0);
 294
 295     for (i = 0; i < sizeof(choices)/sizeof(UINT); i++){
 296         sprintf(buffer, stringFormat, choices[i]);
 297         result = SendMessageA(hCombo, CB_ADDSTRING, 0, (LPARAM)buffer);
 298         ok(result == i,
 299            "Failed to add item %d\n", i);
 300     }
 301
 302     cbInfo.cbSize = sizeof(COMBOBOXINFO);
 303     SetLastError(0xdeadbeef);
 304     ret = pGetComboBoxInfo(hCombo, &cbInfo);
 305     ok(ret, "Failed to get combobox info structure. LastError=%d\n",
 306        GetLastError());
 307     hEdit = cbInfo.hwndItem;
 308     hList = cbInfo.hwndList;
 309
 310     trace("hMainWnd=%p, hCombo=%p, hList=%p, hEdit=%p\n", hMainWnd, hCombo, hList, hEdit);
 311     ok(GetFocus() == hMainWnd, "Focus not on Main Window, instead on %p\n", GetFocus());
 312
 313     /* Click on the button to drop down the list */
 314     x = cbInfo.rcButton.left + (cbInfo.rcButton.right-cbInfo.rcButton.left)/2;
 315     y = cbInfo.rcButton.top + (cbInfo.rcButton.bottom-cbInfo.rcButton.top)/2;
 316     result = SendMessage(hCombo, WM_LBUTTONDOWN, 0, MAKELPARAM(x, y));
 317     ok(result, "WM_LBUTTONDOWN was not processed. LastError=%d\n",
 318        GetLastError());
 319     ok(SendMessage(hCombo, CB_GETDROPPEDSTATE, 0, 0),
 320        "The dropdown list should have appeared after clicking the button.\n");
 321
 322     ok(GetFocus() == hEdit,
 323        "Focus not on ComboBox's Edit Control, instead on %p\n", GetFocus());
 324     result = SendMessage(hCombo, WM_LBUTTONUP, 0, MAKELPARAM(x, y));
 325     ok(result, "WM_LBUTTONUP was not processed. LastError=%d\n",
 326        GetLastError());
 327     ok(GetFocus() == hEdit,
 328        "Focus not on ComboBox's Edit Control, instead on %p\n", GetFocus());
 329
 330     /* Click on the 5th item in the list */
 331     item_height = SendMessage(hCombo, CB_GETITEMHEIGHT, 0, 0);
 332     ok(GetClientRect(hList, &rect), "Failed to get list's client rect.\n");
 333     x = rect.left + (rect.right-rect.left)/2;
 334     y = item_height/2 + item_height*4;
 335     result = SendMessage(hList, WM_LBUTTONDOWN, 0, MAKELPARAM(x, y));
 336     ok(!result, "WM_LBUTTONDOWN was not processed. LastError=%d\n",
 337        GetLastError());
 338     ok(GetFocus() == hEdit,
 339        "Focus not on ComboBox's Edit Control, instead on %p\n", GetFocus());
 340
 341     result = SendMessage(hList, WM_MOUSEMOVE, 0, MAKELPARAM(x, y));
 342     ok(!result, "WM_MOUSEMOVE 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     ok(SendMessage(hCombo, CB_GETDROPPEDSTATE, 0, 0),
 347        "The dropdown list should still be visible.\n");
 348
 349     result = SendMessage(hList, WM_LBUTTONUP, 0, MAKELPARAM(x, y));
 350     ok(!result, "WM_LBUTTONUP was not processed. LastError=%d\n",
 351        GetLastError());
 352     ok(GetFocus() == hEdit,
 353        "Focus not on ComboBox's Edit Control, instead on %p\n", GetFocus());
 354     ok(!SendMessage(hCombo, CB_GETDROPPEDSTATE, 0, 0),
 355        "The dropdown list should have been rolled up.\n");
 356     idx = SendMessage(hCombo, CB_GETCURSEL, 0, 0);
 357     ok(idx, "Current Selection: expected %d, got %d\n", 4, idx);
 358
 359     DestroyWindow(hCombo);
 360 }
 361
 362 static void test_changesize( DWORD style)
 363 {
 364     HWND hCombo = build_combo(style);
 365     RECT rc;
 366     INT ddheight, clheight, ddwidth, clwidth;
 367     /* get initial measurements */
 368     GetClientRect( hCombo, &rc);
 369     clheight = rc.bottom - rc.top;
 370     clwidth = rc.right - rc.left;
 371     SendMessageA(hCombo, CB_GETDROPPEDCONTROLRECT, 0, (LPARAM)&rc);
 372     ddheight = rc.bottom - rc.top;
 373     ddwidth = rc.right - rc.left;
 374     /* use MoveWindow to move & resize the combo */
 375     /* first make it slightly smaller */
 376     MoveWindow( hCombo, 10, 10, clwidth - 2, clheight - 2, TRUE);
 377     GetClientRect( hCombo, &rc);
 378     ok( rc.right - rc.left == clwidth - 2, "clientrect witdh is %d vs %d\n",
 379             rc.right - rc.left, clwidth - 2);
 380     ok( rc.bottom - rc.top == clheight, "clientrect height is %d vs %d\n",
 381                 rc.bottom - rc.top, clheight);
 382     SendMessageA(hCombo, CB_GETDROPPEDCONTROLRECT, 0, (LPARAM)&rc);
 383     ok( rc.right - rc.left == clwidth - 2, "drop-down rect witdh is %d vs %d\n",
 384             rc.right - rc.left, clwidth - 2);
 385     ok( rc.bottom - rc.top == ddheight, "drop-down rect height is %d vs %d\n",
 386             rc.bottom - rc.top, ddheight);
 387     /* new cx, cy is slightly bigger than the initial values */
 388     MoveWindow( hCombo, 10, 10, clwidth + 2, clheight + 2, TRUE);
 389     GetClientRect( hCombo, &rc);
 390     ok( rc.right - rc.left == clwidth + 2, "clientrect witdh is %d vs %d\n",
 391             rc.right - rc.left, clwidth + 2);
 392     ok( rc.bottom - rc.top == clheight, "clientrect height is %d vs %d\n",
 393             rc.bottom - rc.top, clheight);
 394     SendMessageA(hCombo, CB_GETDROPPEDCONTROLRECT, 0, (LPARAM)&rc);
 395     ok( rc.right - rc.left == clwidth + 2, "drop-down rect witdh is %d vs %d\n",
 396             rc.right - rc.left, clwidth + 2);
 397     todo_wine {
 398         ok( rc.bottom - rc.top == clheight + 2, "drop-down rect height is %d vs %d\n",
 399                 rc.bottom - rc.top, clheight + 2);
 400     }
 401     DestroyWindow(hCombo);
 402 }
 403
 404 START_TEST(combo)
 405 {
 406     hMainWnd = CreateWindow("static", "Test", WS_OVERLAPPEDWINDOW, 10, 10, 300, 300, NULL, NULL, NULL, 0);
 407     ShowWindow(hMainWnd, SW_SHOW);
 408
 409     test_setfont(CBS_DROPDOWN);
 410     test_setfont(CBS_DROPDOWNLIST);
 411     test_setitemheight(CBS_DROPDOWN);
 412     test_setitemheight(CBS_DROPDOWNLIST);
 413     test_CBN_SELCHANGE();
 414     test_WM_LBUTTONDOWN();
 415     test_changesize(CBS_DROPDOWN);
 416     test_changesize(CBS_DROPDOWNLIST);
 417
 418     DestroyWindow(hMainWnd);
 419 }