private void Update(TelegramTheme requested, ThemeAccentInfo info = null)
{
try
{
ThemeOutgoing.Update(requested, info?.Values);
ThemeIncoming.Update(requested, info?.Values);
var values = info?.Values;
var shades = info?.Shades;
var target = MergedDictionaries[0].ThemeDictionaries[requested == TelegramTheme.Light ? "Light" : "Dark"] as ResourceDictionary;
var lookup = ThemeService.GetLookup(requested);
if (shades != null && shades.TryGetValue(AccentShade.Default, out Color accentResource))
{
target["Accent"] = accentResource;
}
else
{
target["Accent"] = ThemeInfoBase.Accents[TelegramThemeType.Day][AccentShade.Default];
}
foreach (var item in lookup)
{
if (target.TryGet(item.Key, out SolidColorBrush brush))
{
Color value;
if (item.Value is AccentShade shade)
{
if (shades != null && shades.TryGetValue(shade, out Color accent))
{
value = accent;
}
else
{
value = ThemeInfoBase.Accents[TelegramThemeType.Day][shade];
}
}
else if (values != null && values.TryGetValue(item.Key, out Color themed))
{
value = themed;
}
else if (item.Value is Color color)
{
value = color;
}
if (brush.Color == value)
{
continue;
}
try
{
brush.Color = value;
}
catch (UnauthorizedAccessException)
{
// Some times access denied is thrown,
// this seems to happen after the application
// is resumed, but unfortunately I can't see
// any fix to this. The exception is going
// to be thrown any time - even minutes after
// the resume - if the theme changes.
// The exception MIGHT be related to StaticResources
// but I'm not able to confirm this.
}
}
}
int GetColor(string key)
{
if (target.TryGet(key, out SolidColorBrush brush))
{
return(brush.Color.ToValue());
}
return(0);
}
Parameters = new ThemeParameters
{
BackgroundColor = GetColor("ContentDialogBackground"),
TextColor = GetColor("ContentDialogForeground"),
ButtonColor = GetColor("ButtonBackground"),
ButtonTextColor = GetColor("ButtonForeground"),
HintColor = GetColor("SystemControlDisabledChromeDisabledLowBrush"),
LinkColor = GetColor("HyperlinkForeground")
};
}
catch { }
}
// This is for chat specific theme
public bool Update(ElementTheme elementTheme, ChatTheme theme)
{
var updated = false;
var requested = elementTheme == ElementTheme.Dark ? TelegramTheme.Dark : TelegramTheme.Light;
var settings = requested == TelegramTheme.Light ? theme?.LightSettings : theme?.DarkSettings;
if (settings != null)
{
if (_lastAccent != settings.AccentColor)
{
_lastTheme = theme;
var tint = SettingsService.Current.Appearance[requested].Type;
if (tint == TelegramThemeType.Classic || (tint == TelegramThemeType.Custom && requested == TelegramTheme.Light))
{
tint = TelegramThemeType.Day;
}
else if (tint == TelegramThemeType.Custom)
{
tint = TelegramThemeType.Tinted;
}
var accent = settings.AccentColor.ToColor();
var outgoing = settings.OutgoingMessageAccentColor.ToColor();
var info = ThemeAccentInfo.FromAccent(tint, accent, outgoing);
ThemeOutgoing.Update(info.Parent, info.Values);
ThemeIncoming.Update(info.Parent, info.Values);
}
if (_lastBackground != settings.Background?.Id)
{
updated = true;
}
_lastAccent = settings.AccentColor;
_lastBackground = settings.Background?.Id;
}
else
{
if (_lastAccent != null)
{
_lastTheme = null;
var options = SettingsService.Current.Appearance;
if (options[requested].Type == TelegramThemeType.Custom && System.IO.File.Exists(options[requested].Custom))
{
var info = ThemeCustomInfo.FromFile(options[requested].Custom);
ThemeOutgoing.Update(info.Parent, info.Values);
ThemeIncoming.Update(info.Parent, info.Values);
}
else if (ThemeAccentInfo.IsAccent(options[requested].Type))
{
var info = ThemeAccentInfo.FromAccent(options[requested].Type, options.Accents[options[requested].Type]);
ThemeOutgoing.Update(info.Parent, info.Values);
ThemeIncoming.Update(info.Parent, info.Values);
}
else
{
ThemeOutgoing.Update(requested);
ThemeIncoming.Update(requested);
}
}
if (_lastBackground != null)
{
updated = true;
}
_lastAccent = null;
_lastBackground = null;
}
return(updated);
}