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 = build_combo(style);
  98     HFONT hFont1 = CreateFont(10, 0, 0, 0, FW_DONTCARE, FALSE, FALSE, FALSE, ANSI_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH|FF_DONTCARE, "Marlett");
  99     HFONT hFont2 = CreateFont(8, 0, 0, 0, FW_DONTCARE, FALSE, FALSE, FALSE, ANSI_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH|FF_DONTCARE, "Marlett");
 100     RECT r;
 101     int i;
 102
 103     trace("Style %x\n", style);
 104     GetClientRect(hCombo, &r);
 105     expect_rect(r, 0, 0, 100, 24);
 106     SendMessageA(hCombo, CB_GETDROPPEDCONTROLRECT, 0, (LPARAM)&r);
 107     MapWindowPoints(HWND_DESKTOP, hMainWnd, (LPPOINT)&r, 2);
 108     todo_wine expect_rect(r, 5, 5, 105, 105);
 109
 110     if (!is_font_installed("Marlett"))
 111     {
 112         skip("Marlett font not available\n");
 113         DestroyWindow(hCombo);
 114         DeleteObject(hFont1);
 115         DeleteObject(hFont2);
 116         return;
 117     }
 118
 119     if (font_height(hFont1) == 10 && font_height(hFont2) == 8)
 120     {
 121         SendMessage(hCombo, WM_SETFONT, (WPARAM)hFont1, FALSE);
 122         GetClientRect(hCombo, &r);
 123         expect_rect(r, 0, 0, 100, 18);
 124         SendMessageA(hCombo, CB_GETDROPPEDCONTROLRECT, 0, (LPARAM)&r);
 125         MapWindowPoints(HWND_DESKTOP, hMainWnd, (LPPOINT)&r, 2);
 126         todo_wine expect_rect(r, 5, 5, 105, 99);
 127
 128         SendMessage(hCombo, WM_SETFONT, (WPARAM)hFont2, FALSE);
 129         GetClientRect(hCombo, &r);
 130         expect_rect(r, 0, 0, 100, 16);
 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, 97);
 134
 135         SendMessage(hCombo, WM_SETFONT, (WPARAM)hFont1, FALSE);
 136         GetClientRect(hCombo, &r);
 137         expect_rect(r, 0, 0, 100, 18);
 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, 99);
 141     }
 142     else
 143         skip("Invalid Marlett font heights\n");
 144
 145     for (i = 1; i < 30; i++)
 146     {
 147         HFONT hFont = CreateFont(i, 0, 0, 0, FW_DONTCARE, FALSE, FALSE, FALSE, ANSI_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH|FF_DONTCARE, "Marlett");
 148         int height = font_height(hFont);
 149
 150         SendMessage(hCombo, WM_SETFONT, (WPARAM)hFont, FALSE);
 151         GetClientRect(hCombo, &r);
 152         expect_eq(r.bottom - r.top, height + 8, int, "%d");
 153         SendMessage(hCombo, WM_SETFONT, 0, FALSE);
 154         DeleteObject(hFont);
 155     }
 156
 157     DestroyWindow(hCombo);
 158     DeleteObject(hFont1);
 159     DeleteObject(hFont2);
 160 }
 161
 162 static LRESULT (CALLBACK *old_parent_proc)(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam);
 163 static LPCSTR expected_edit_text;
 164 static LPCSTR expected_list_text;
 165 static BOOL selchange_fired;
 166
 167 static LRESULT CALLBACK parent_wnd_proc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam)
 168 {
 169     switch (msg)
 170     {
 171     case WM_COMMAND:
 172         switch (wparam)
 173         {
 174             case MAKEWPARAM(COMBO_ID, CBN_SELCHANGE):
 175             {
 176                 HWND hCombo = (HWND)lparam;
 177                 int idx;
 178                 char list[20], edit[20];
 179
 180                 memset(list, 0, sizeof(list));
 181                 memset(edit, 0, sizeof(edit));
 182
 183                 idx = SendMessage(hCombo, CB_GETCURSEL, 0, 0);
 184                 SendMessage(hCombo, CB_GETLBTEXT, idx, (LPARAM)list);
 185                 SendMessage(hCombo, WM_GETTEXT, sizeof(edit), (LPARAM)edit);
 186
 187                 ok(!strcmp(edit, expected_edit_text), "edit: got %s, expected %s\n",
 188                    edit, expected_edit_text);
 189                 ok(!strcmp(list, expected_list_text), "list: got %s, expected %s\n",
 190                    list, expected_list_text);
 191
 192                 selchange_fired = TRUE;
 193             }
 194             break;
 195         }
 196         break;
 197     }
 198
 199     return CallWindowProc(old_parent_proc, hwnd, msg, wparam, lparam);
 200 }
 201
 202 static void test_selection(DWORD style, const char * const text[],
 203                            const int *edit, const int *list)
 204 {
 205     INT idx;
 206     HWND hCombo;
 207
 208     hCombo = build_combo(style);
 209
 210     SendMessage(hCombo, CB_ADDSTRING, 0, (LPARAM)text[0]);
 211     SendMessage(hCombo, CB_ADDSTRING, 0, (LPARAM)text[1]);
 212     SendMessage(hCombo, CB_SETCURSEL, -1, 0);
 213
 214     old_parent_proc = (void *)SetWindowLongPtr(hMainWnd, GWLP_WNDPROC, (ULONG_PTR)parent_wnd_proc);
 215
 216     idx = SendMessage(hCombo, CB_GETCURSEL, 0, 0);
 217     ok(idx == -1, "expected selection -1, got %d\n", idx);
 218
 219     /* keyboard navigation */
 220
 221     expected_list_text = text[list[0]];
 222     expected_edit_text = text[edit[0]];
 223     selchange_fired = FALSE;
 224     SendMessage(hCombo, WM_KEYDOWN, VK_DOWN, 0);
 225     ok(selchange_fired, "CBN_SELCHANGE not sent!\n");
 226
 227     expected_list_text = text[list[1]];
 228     expected_edit_text = text[edit[1]];
 229     selchange_fired = FALSE;
 230     SendMessage(hCombo, WM_KEYDOWN, VK_DOWN, 0);
 231     ok(selchange_fired, "CBN_SELCHANGE not sent!\n");
 232
 233     expected_list_text = text[list[2]];
 234     expected_edit_text = text[edit[2]];
 235     selchange_fired = FALSE;
 236     SendMessage(hCombo, WM_KEYDOWN, VK_UP, 0);
 237     ok(selchange_fired, "CBN_SELCHANGE not sent!\n");
 238
 239     /* programmatic navigation */
 240
 241     expected_list_text = text[list[3]];
 242     expected_edit_text = text[edit[3]];
 243     selchange_fired = FALSE;
 244     SendMessage(hCombo, CB_SETCURSEL, list[3], 0);
 245     ok(!selchange_fired, "CBN_SELCHANGE sent!\n");
 246
 247     expected_list_text = text[list[4]];
 248     expected_edit_text = text[edit[4]];
 249     selchange_fired = FALSE;
 250     SendMessage(hCombo, CB_SETCURSEL, list[4], 0);
 251     ok(!selchange_fired, "CBN_SELCHANGE sent!\n");
 252
 253     SetWindowLongPtr(hMainWnd, GWLP_WNDPROC, (ULONG_PTR)old_parent_proc);
 254     DestroyWindow(hCombo);
 255 }
 256
 257 static void test_CBN_SELCHANGE(void)
 258 {
 259     static const char * const text[] = { "alpha", "beta", "" };
 260     static const int sel_1[] = { 2, 0, 1, 0, 1 };
 261     static const int sel_2[] = { 0, 1, 0, 0, 1 };
 262
 263     test_selection(CBS_SIMPLE, text, sel_1, sel_2);
 264     test_selection(CBS_DROPDOWN, text, sel_1, sel_2);
 265     test_selection(CBS_DROPDOWNLIST, text, sel_2, sel_2);
 266 }
 267
 268 static void test_WM_LBUTTONDOWN(void)
 269 {
 270     HWND hCombo, hEdit, hList;
 271     COMBOBOXINFO cbInfo;
 272     UINT x, y, item_height;
 273     LRESULT result;
 274     int i, idx;
 275     RECT rect;
 276     CHAR buffer[3];
 277     static const UINT choices[] = {8,9,10,11,12,14,16,18,20,22,24,26,28,36,48,72};
 278     static const CHAR stringFormat[] = "%2d";
 279     BOOL ret;
 280     BOOL (WINAPI *pGetComboBoxInfo)(HWND, PCOMBOBOXINFO);
 281
 282     pGetComboBoxInfo = (void*)GetProcAddress(GetModuleHandleA("user32.dll"), "GetComboBoxInfo");
 283     if (!pGetComboBoxInfo){
 284         win_skip("GetComboBoxInfo is not available\n");
 285         return;
 286     }
 287
 288     hCombo = CreateWindow("ComboBox", "Combo", WS_VISIBLE|WS_CHILD|CBS_DROPDOWN,
 289             0, 0, 200, 150, hMainWnd, (HMENU)COMBO_ID, NULL, 0);
 290
 291     for (i = 0; i < sizeof(choices)/sizeof(UINT); i++){
 292         sprintf(buffer, stringFormat, choices[i]);
 293         result = SendMessageA(hCombo, CB_ADDSTRING, 0, (LPARAM)buffer);
 294         ok(result == i,
 295            "Failed to add item %d\n", i);
 296     }
 297
 298     cbInfo.cbSize = sizeof(COMBOBOXINFO);
 299     SetLastError(0xdeadbeef);
 300     ret = pGetComboBoxInfo(hCombo, &cbInfo);
 301     ok(ret, "Failed to get combobox info structure. LastError=%d\n",
 302        GetLastError());
 303     hEdit = cbInfo.hwndItem;
 304     hList = cbInfo.hwndList;
 305
 306     trace("hMainWnd=%p, hCombo=%p, hList=%p, hEdit=%p\n", hMainWnd, hCombo, hList, hEdit);
 307     ok(GetFocus() == hMainWnd, "Focus not on Main Window, instead on %p\n", GetFocus());
 308
 309     /* Click on the button to drop down the list */
 310     x = cbInfo.rcButton.left + (cbInfo.rcButton.right-cbInfo.rcButton.left)/2;
 311     y = cbInfo.rcButton.top + (cbInfo.rcButton.bottom-cbInfo.rcButton.top)/2;
 312     result = SendMessage(hCombo, WM_LBUTTONDOWN, 0, MAKELPARAM(x, y));
 313     ok(result, "WM_LBUTTONDOWN was not processed. LastError=%d\n",
 314        GetLastError());
 315     ok(SendMessage(hCombo, CB_GETDROPPEDSTATE, 0, 0),
 316        "The dropdown list should have appeared after clicking the button.\n");
 317
 318     ok(GetFocus() == hEdit,
 319        "Focus not on ComboBox's Edit Control, instead on %p\n", GetFocus());
 320     result = SendMessage(hCombo, WM_LBUTTONUP, 0, MAKELPARAM(x, y));
 321     ok(result, "WM_LBUTTONUP was not processed. LastError=%d\n",
 322        GetLastError());
 323     ok(GetFocus() == hEdit,
 324        "Focus not on ComboBox's Edit Control, instead on %p\n", GetFocus());
 325
 326     /* Click on the 5th item in the list */
 327     item_height = SendMessage(hCombo, CB_GETITEMHEIGHT, 0, 0);
 328     ok(GetClientRect(hList, &rect), "Failed to get list's client rect.\n");
 329     x = rect.left + (rect.right-rect.left)/2;
 330     y = item_height/2 + item_height*4;
 331     result = SendMessage(hList, WM_LBUTTONDOWN, 0, MAKELPARAM(x, y));
 332     ok(!result, "WM_LBUTTONDOWN was not processed. LastError=%d\n",
 333        GetLastError());
 334     ok(GetFocus() == hEdit,
 335        "Focus not on ComboBox's Edit Control, instead on %p\n", GetFocus());
 336
 337     result = SendMessage(hList, WM_MOUSEMOVE, 0, MAKELPARAM(x, y));
 338     ok(!result, "WM_MOUSEMOVE was not processed. LastError=%d\n",
 339        GetLastError());
 340     ok(GetFocus() == hEdit,
 341        "Focus not on ComboBox's Edit Control, instead on %p\n", GetFocus());
 342     ok(SendMessage(hCombo, CB_GETDROPPEDSTATE, 0, 0),
 343        "The dropdown list should still be visible.\n");
 344
 345     result = SendMessage(hList, WM_LBUTTONUP, 0, MAKELPARAM(x, y));
 346     ok(!result, "WM_LBUTTONUP was not processed. LastError=%d\n",
 347        GetLastError());
 348     ok(GetFocus() == hEdit,
 349        "Focus not on ComboBox's Edit Control, instead on %p\n", GetFocus());
 350     ok(!SendMessage(hCombo, CB_GETDROPPEDSTATE, 0, 0),
 351        "The dropdown list should have been rolled up.\n");
 352     idx = SendMessage(hCombo, CB_GETCURSEL, 0, 0);
 353     ok(idx, "Current Selection: expected %d, got %d\n", 4, idx);
 354
 355     DestroyWindow(hCombo);
 356 }
 357
 358 static void test_changesize( DWORD style)
 359 {
 360     HWND hCombo = build_combo(style);
 361     RECT rc;
 362     INT ddheight, clheight, ddwidth, clwidth;
 363     /* get initial measurements */
 364     GetClientRect( hCombo, &rc);
 365     clheight = rc.bottom - rc.top;
 366     clwidth = rc.right - rc.left;
 367     SendMessageA(hCombo, CB_GETDROPPEDCONTROLRECT, 0, (LPARAM)&rc);
 368     ddheight = rc.bottom - rc.top;
 369     ddwidth = rc.right - rc.left;
 370     /* use MoveWindow to move & resize the combo */
 371     /* first make it slightly smaller */
 372     MoveWindow( hCombo, 10, 10, clwidth - 2, clheight - 2, TRUE);
 373     GetClientRect( hCombo, &rc);
 374     ok( rc.right - rc.left == clwidth - 2, "clientrect witdh is %d vs %d\n",
 375             rc.right - rc.left, clwidth - 2);
 376     ok( rc.bottom - rc.top == clheight, "clientrect height is %d vs %d\n",
 377                 rc.bottom - rc.top, clheight);
 378     SendMessageA(hCombo, CB_GETDROPPEDCONTROLRECT, 0, (LPARAM)&rc);
 379     ok( rc.right - rc.left == clwidth - 2, "drop-down rect witdh is %d vs %d\n",
 380             rc.right - rc.left, clwidth - 2);
 381     ok( rc.bottom - rc.top == ddheight, "drop-down rect height is %d vs %d\n",
 382             rc.bottom - rc.top, ddheight);
 383     /* new cx, cy is slightly bigger than the initial values */
 384     MoveWindow( hCombo, 10, 10, clwidth + 2, clheight + 2, TRUE);
 385     GetClientRect( hCombo, &rc);
 386     ok( rc.right - rc.left == clwidth + 2, "clientrect witdh is %d vs %d\n",
 387             rc.right - rc.left, clwidth + 2);
 388     ok( rc.bottom - rc.top == clheight, "clientrect height is %d vs %d\n",
 389             rc.bottom - rc.top, clheight);
 390     SendMessageA(hCombo, CB_GETDROPPEDCONTROLRECT, 0, (LPARAM)&rc);
 391     ok( rc.right - rc.left == clwidth + 2, "drop-down rect witdh is %d vs %d\n",
 392             rc.right - rc.left, clwidth + 2);
 393     todo_wine {
 394         ok( rc.bottom - rc.top == clheight + 2, "drop-down rect height is %d vs %d\n",
 395                 rc.bottom - rc.top, clheight + 2);
 396     }
 397     DestroyWindow(hCombo);
 398 }
 399
 400 START_TEST(combo)
 401 {
 402     hMainWnd = CreateWindow("static", "Test", WS_OVERLAPPEDWINDOW, 10, 10, 300, 300, NULL, NULL, NULL, 0);
 403     ShowWindow(hMainWnd, SW_SHOW);
 404
 405     test_setfont(CBS_DROPDOWN);
 406     test_setfont(CBS_DROPDOWNLIST);
 407     test_setitemheight(CBS_DROPDOWN);
 408     test_setitemheight(CBS_DROPDOWNLIST);
 409     test_CBN_SELCHANGE();
 410     test_WM_LBUTTONDOWN();
 411     test_changesize(CBS_DROPDOWN);
 412     test_changesize(CBS_DROPDOWNLIST);
 413
 414     DestroyWindow(hMainWnd);
 415 }