windows.ui: Support accent colors in uisettings3_GetColorValue.

dlls/windows.ui/tests/uisettings.c

@@ -75,6 +75,45 @@ static DWORD set_app_theme( DWORD mode )
     return ret;
 }
 
+static BOOL get_accent_palette( DWORD *colors, DWORD *len )
+{
+    BOOL ret = TRUE;
+    DWORD type;
+    HKEY hkey;
+
+    if (RegOpenKeyExW( HKEY_CURRENT_USER, L"Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Accent", 0, KEY_QUERY_VALUE, &hkey )) return FALSE;
+    if (RegQueryValueExW( hkey, L"AccentPalette", NULL, &type, (BYTE *)colors, len ) || type != REG_BINARY) ret = FALSE;
+    RegCloseKey( hkey );
+    return ret;
+}
+
+static BOOL delete_accent_palette(void)
+{
+    BOOL ret = TRUE;
+    HRESULT res;
+    HKEY hkey;
+
+    res = RegOpenKeyExW( HKEY_CURRENT_USER, L"Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Accent", 0, KEY_SET_VALUE, &hkey );
+    if (res != 0) return res == ERROR_FILE_NOT_FOUND;
+
+    res = RegDeleteValueW( hkey, L"AccentPalette" );
+    if (res != 0 && res != ERROR_FILE_NOT_FOUND) ret = FALSE;
+
+    RegCloseKey( hkey );
+    return ret;
+}
+
+static DWORD set_accent_palette( DWORD *colors, DWORD len )
+{
+    DWORD ret = 1;
+    HKEY hkey;
+
+    if (RegOpenKeyExW( HKEY_CURRENT_USER,  L"Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Accent", 0, KEY_SET_VALUE, &hkey )) return 0;
+    if (RegSetValueExW( hkey, L"AccentPalette", 0, REG_BINARY, (const BYTE *)&colors, len )) ret = 0;
+    RegCloseKey( hkey );
+    return ret;
+}
+
 static void reset_color( Color *value )
 {
     value->A = 1;
@@ -83,6 +122,60 @@ static void reset_color( Color *value )
     value->B = 1;
 }
 
+static BOOL compare_dword_color( Color color, DWORD dword )
+{
+    return (color.R == (dword & 0xFF) && color.G == ((dword >> 8) & 0xFF) && color.B == ((dword >> 16) & 0xFF));
+}
+
+static void test_single_accent( IUISettings3 *uisettings3, UIColorType type, DWORD expected )
+{
+    Color value;
+    HRESULT hr;
+    BOOL result;
+
+    reset_color( &value );
+    hr = IUISettings3_GetColorValue( uisettings3, type, &value );
+    ok( hr == S_OK, "GetColorValue returned %#lx\n", hr );
+
+    result = compare_dword_color( value, expected );
+    ok( result, "got unexpected value.A == %d value.R == %d value.G == %d value.B == %d (type = %d)\n", value.A, value.R, value.G, value.B, type );
+}
+
+static void test_AccentColor( IUISettings3 *uisettings3 )
+{
+    DWORD default_palette[8];
+    DWORD default_palette_len = sizeof(default_palette);
+    DWORD accent_palette[8];
+    DWORD accent_palette_len = sizeof(accent_palette);
+
+    if (!get_accent_palette( default_palette, &default_palette_len )) default_palette_len = 0;
+
+    /* deleting AccentPalette fills a default value */
+    ok( delete_accent_palette(), "failed to delete AccentPalette key.\n");
+    ok( !get_accent_palette( accent_palette, &accent_palette_len ), "AccentPalette should not be available.\n" );
+
+    test_single_accent( uisettings3, UIColorType_Accent, 0x00d77800 );
+    ok( get_accent_palette( accent_palette, &accent_palette_len ), "failed to retrieve AccentPalette key.\n" );
+
+    /* default values */
+    test_single_accent( uisettings3, UIColorType_AccentDark1, 0x009e5a00 );
+    test_single_accent( uisettings3, UIColorType_AccentDark2, 0x00754200 );
+    test_single_accent( uisettings3, UIColorType_AccentDark3, 0x00422600 );
+    test_single_accent( uisettings3, UIColorType_AccentLight1, 0x00e39c42 );
+    test_single_accent( uisettings3, UIColorType_AccentLight2, 0x00edb976 );
+    test_single_accent( uisettings3, UIColorType_AccentLight3, 0x00ffd8a6 );
+
+    test_single_accent( uisettings3, UIColorType_Accent, accent_palette[3] );
+    test_single_accent( uisettings3, UIColorType_AccentDark1, accent_palette[4] );
+    test_single_accent( uisettings3, UIColorType_AccentDark2, accent_palette[5] );
+    test_single_accent( uisettings3, UIColorType_AccentDark3, accent_palette[6] );
+    test_single_accent( uisettings3, UIColorType_AccentLight1, accent_palette[2] );
+    test_single_accent( uisettings3, UIColorType_AccentLight2, accent_palette[1] );
+    test_single_accent( uisettings3, UIColorType_AccentLight3, accent_palette[0] );
+
+    if (default_palette_len) set_accent_palette( default_palette, default_palette_len );
+}
+
 static void test_UISettings(void)
 {
     static const WCHAR *uisettings_name = L"Windows.UI.ViewManagement.UISettings";
@@ -126,6 +219,8 @@ static void test_UISettings(void)
 
     check_interface( inspectable, &IID_IAgileObject, TRUE );
 
+    test_AccentColor( uisettings3 );
+
     default_theme = get_app_theme();
 
     /* Light Theme */

dlls/windows.ui/uisettings.c

@@ -266,6 +266,40 @@ static DWORD get_app_theme(void)
     return ret;
 }
 
+static DWORD initialize_accent_palette( HKEY hkey, DWORD offset )
+{
+    DWORD palette[7] = { 0x00ffd8a6, 0x00edb976, 0x00e39c42, 0x00d77800, 0x009e5a00, 0x00754200, 0x00422600 };
+    DWORD len = sizeof(palette);
+
+    RegSetValueExW( hkey, L"AccentPalette", 0, REG_BINARY, (const BYTE *)&palette, len );
+    return palette[offset];
+}
+
+static void dword_to_color( DWORD color, Color *out )
+{
+    out->R = color & 0xFF;
+    out->G = (color >> 8) & 0xFF;
+    out->B = (color >> 16) & 0xFF;
+    out->A = 0xFF;
+}
+
+static void get_accent_palette_color( DWORD offset, Color *out )
+{
+    DWORD palette[7];
+    DWORD ret = 0, len = sizeof(palette), type;
+    HKEY hkey;
+
+    if (!RegCreateKeyW( HKEY_CURRENT_USER, L"Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Accent", &hkey ))
+    {
+        if (RegQueryValueExW( hkey, L"AccentPalette", NULL, &type, (BYTE *)&palette, &len ) || type != REG_BINARY)
+            ret = initialize_accent_palette( hkey, offset );
+        else
+            ret = palette[offset];
+        RegCloseKey( hkey );
+    }
+    dword_to_color( ret, out );
+}
+
 static void set_color_value( BYTE a, BYTE r, BYTE g, BYTE b, Color *out )
 {
     out->A = a;
@@ -283,19 +317,39 @@ static HRESULT WINAPI uisettings3_GetColorValue( IUISettings3 *iface, UIColorTyp
     switch (type)
     {
     case UIColorType_Foreground:
+        theme = get_app_theme();
+        set_color_value( 255, theme ? 0 : 255, theme ? 0 : 255, theme ? 0 : 255, value );
+        break;
     case UIColorType_Background:
         theme = get_app_theme();
+        set_color_value( 255, theme ? 255 : 0, theme ? 255 : 0, theme ? 255 : 0, value );
+        break;
+    case UIColorType_Accent:
+        get_accent_palette_color( 3, value );
+        break;
+    case UIColorType_AccentDark1:
+        get_accent_palette_color( 4, value );
+        break;
+    case UIColorType_AccentDark2:
+        get_accent_palette_color( 5, value );
+        break;
+    case UIColorType_AccentDark3:
+        get_accent_palette_color( 6, value );
+        break;
+    case UIColorType_AccentLight1:
+        get_accent_palette_color( 2, value );
+        break;
+    case UIColorType_AccentLight2:
+        get_accent_palette_color( 1, value );
+        break;
+    case UIColorType_AccentLight3:
+        get_accent_palette_color( 0, value );
         break;
     default:
         FIXME( "type %d not implemented.\n", type );
         return E_NOTIMPL;
     }
 
-    if (type == UIColorType_Foreground)
-        set_color_value( 255, theme ? 0 : 255, theme ? 0 : 255, theme ? 0 : 255, value );
-    else
-        set_color_value( 255, theme ? 255 : 0, theme ? 255 : 0, theme ? 255 : 0, value );
-
     TRACE( "Returning value.A = %d, value.R = %d, value.G = %d, value.B = %d\n", value->A, value->R, value->G, value->B );
     return S_OK;
 }