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Refactor TextFieldWidget into much clearer and extensible code

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This commit is contained in:
Kevin Azzam
2015-10-10 00:50:33 +02:00
parent 96c30788b0
commit 5e4ea69dbd
1 changed files with 132 additions and 145 deletions
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277
OpenRA.Mods.Common/Widgets/TextFieldWidget.cs
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@@ -115,18 +115,6 @@ namespace OpenRA.Mods.Common.Widgets
if (!HasKeyboardFocus)
return false;
if ((e.Key == Keycode.RETURN || e.Key == Keycode.KP_ENTER) && OnEnterKey())
return true;
if (e.Key == Keycode.TAB && OnTabKey())
return true;
if (e.Key == Keycode.ESCAPE && OnEscKey())
return true;
if (e.Key == Keycode.LALT && OnAltKey())
return true;
Func<int> getPrevWhitespaceIndex = () =>
Text.Substring(0, CursorPosition).TrimEnd().LastIndexOf(' ') + 1;
@@ -141,157 +129,156 @@ namespace OpenRA.Mods.Common.Widgets
return CursorPosition + trimmed_spaces + next_whitespace;
};
if (e.Key == Keycode.LEFT)
{
if (CursorPosition > 0)
{
if ((Platform.CurrentPlatform != PlatformType.OSX && e.Modifiers.HasModifier(Modifiers.Ctrl)) ||
(Platform.CurrentPlatform == PlatformType.OSX && e.Modifiers.HasModifier(Modifiers.Alt)))
{
CursorPosition = getPrevWhitespaceIndex();
}
else
{
CursorPosition--;
}
}
Func<bool> isOSX = () => Platform.CurrentPlatform == PlatformType.OSX;
return true;
}
switch (e.Key) {
case Keycode.RETURN:
case Keycode.KP_ENTER:
if (OnEnterKey())
return true;
break;
if (e.Key == Keycode.RIGHT)
{
if (CursorPosition <= Text.Length - 1) {
if ((Platform.CurrentPlatform != PlatformType.OSX && e.Modifiers.HasModifier(Modifiers.Ctrl)) ||
(Platform.CurrentPlatform == PlatformType.OSX && e.Modifiers.HasModifier(Modifiers.Alt)))
{
CursorPosition = getNextWhitespaceIndex();
}
else
{
CursorPosition++;
}
}
case Keycode.TAB:
if (OnTabKey())
return true;
break;
return true;
}
case Keycode.ESCAPE:
if (OnEscKey())
return true;
break;
if (e.Key == Keycode.HOME)
{
CursorPosition = 0;
return true;
}
case Keycode.LALT:
if (OnAltKey())
return true;
break;
if (e.Key == Keycode.END)
{
CursorPosition = Text.Length;
return true;
}
case Keycode.LEFT:
if (CursorPosition > 0)
if ((!isOSX() && e.Modifiers.HasModifier(Modifiers.Ctrl)) ||
(isOSX() && e.Modifiers.HasModifier(Modifiers.Alt)))
CursorPosition = getPrevWhitespaceIndex();
else
CursorPosition--;
break;
if (e.Key == Keycode.K && e.Modifiers.HasModifier(Modifiers.Ctrl) &&
(Platform.CurrentPlatform != PlatformType.OSX))
{
// equivalent to cmd+delete on osx
if (CursorPosition < Text.Length)
{
Text = Text.Remove(CursorPosition);
OnTextEdited();
}
case Keycode.RIGHT:
if (CursorPosition <= Text.Length - 1)
if ((!isOSX() && e.Modifiers.HasModifier(Modifiers.Ctrl)) ||
(isOSX() && e.Modifiers.HasModifier(Modifiers.Alt)))
CursorPosition = getNextWhitespaceIndex();
else
CursorPosition++;
return true;
}
break;
if (e.Key == Keycode.U && e.Modifiers.HasModifier(Modifiers.Ctrl) &&
(Platform.CurrentPlatform != PlatformType.OSX))
{
// equivalent to cmd+backspace on osx
Text = Text.Substring(CursorPosition);
CursorPosition = 0;
OnTextEdited();
return true;
}
if (e.Key == Keycode.X &&
((Platform.CurrentPlatform != PlatformType.OSX && e.Modifiers.HasModifier(Modifiers.Ctrl)) ||
(Platform.CurrentPlatform == PlatformType.OSX && e.Modifiers.HasModifier(Modifiers.Meta))))
{
if (!string.IsNullOrEmpty(Text))
{
Text = Text.Remove(0);
case Keycode.HOME:
CursorPosition = 0;
OnTextEdited();
return true;
}
}
break;
if (e.Key == Keycode.DELETE)
{
if (CursorPosition < Text.Length)
{
if ((Platform.CurrentPlatform != PlatformType.OSX && e.Modifiers.HasModifier(Modifiers.Ctrl)) ||
(Platform.CurrentPlatform == PlatformType.OSX && e.Modifiers.HasModifier(Modifiers.Alt)))
case Keycode.END:
CursorPosition = Text.Length;
break;
case Keycode.K:
// ctrl+k is equivalent to cmd+delete on osx
if (!isOSX() && e.Modifiers.HasModifier(Modifiers.Ctrl) && CursorPosition < Text.Length)
{
Text = Text.Substring(0, CursorPosition) + Text.Substring(getNextWhitespaceIndex());
}
else if (Platform.CurrentPlatform == PlatformType.OSX && e.Modifiers.HasModifier(Modifiers.Meta))
{
// equivalent to ctrl+k on non-osx
Text = Text.Remove(CursorPosition);
OnTextEdited();
}
else
break;
case Keycode.U:
// ctrl+u is equivalent to cmd+backspace on osx
if (!isOSX() && e.Modifiers.HasModifier(Modifiers.Ctrl) && CursorPosition > 0)
{
Text = Text.Remove(CursorPosition, 1);
Text = Text.Substring(CursorPosition);
CursorPosition = 0;
OnTextEdited();
}
OnTextEdited();
break;
case Keycode.X:
if (((!isOSX() && e.Modifiers.HasModifier(Modifiers.Ctrl)) ||
(isOSX() && e.Modifiers.HasModifier(Modifiers.Meta))) &&
(!string.IsNullOrEmpty(Text)))
{
Text = Text.Remove(0);
CursorPosition = 0;
OnTextEdited();
}
break;
case Keycode.DELETE:
// cmd+delete is equivalent to ctrl+k on non-osx
if (CursorPosition < Text.Length)
{
if ((!isOSX() && e.Modifiers.HasModifier(Modifiers.Ctrl)) ||
(isOSX() && e.Modifiers.HasModifier(Modifiers.Alt)))
Text = Text.Substring(0, CursorPosition) + Text.Substring(getNextWhitespaceIndex());
else if (isOSX() && e.Modifiers.HasModifier(Modifiers.Meta))
Text = Text.Remove(CursorPosition);
else
Text = Text.Remove(CursorPosition, 1);
OnTextEdited();
}
break;
case Keycode.BACKSPACE:
// cmd+backspace is equivalent to ctrl+u on non-osx
if (CursorPosition > 0)
{
if ((!isOSX() && e.Modifiers.HasModifier(Modifiers.Ctrl)) ||
(isOSX() && e.Modifiers.HasModifier(Modifiers.Alt)))
{
var prev_whitespace = getPrevWhitespaceIndex();
Text = Text.Substring(0, prev_whitespace) + Text.Substring(CursorPosition);
CursorPosition = prev_whitespace;
}
else if (isOSX() && e.Modifiers.HasModifier(Modifiers.Meta))
{
Text = Text.Substring(CursorPosition);
CursorPosition = 0;
}
else
{
CursorPosition--;
Text = Text.Remove(CursorPosition, 1);
}
OnTextEdited();
}
break;
case Keycode.V:
if ((!isOSX() && e.Modifiers.HasModifier(Modifiers.Ctrl)) ||
(isOSX() && e.Modifiers.HasModifier(Modifiers.Meta)))
{
var clipboardText = Game.Renderer.GetClipboardText();
// Take only the first line of the clipboard contents
var nl = clipboardText.IndexOf('\n');
if (nl > 0)
clipboardText = clipboardText.Substring(0, nl);
clipboardText = clipboardText.Trim();
if (clipboardText.Length > 0)
HandleTextInput(clipboardText);
}
break;
default:
break;
}
return true;
}
if (e.Key == Keycode.BACKSPACE && CursorPosition > 0)
{
if ((Platform.CurrentPlatform != PlatformType.OSX && e.Modifiers.HasModifier(Modifiers.Ctrl)) ||
(Platform.CurrentPlatform == PlatformType.OSX && e.Modifiers.HasModifier(Modifiers.Alt)))
{
var prev_whitespace = getPrevWhitespaceIndex();
Text = Text.Substring(0, prev_whitespace) + Text.Substring(CursorPosition);
CursorPosition = prev_whitespace;
}
else if (Platform.CurrentPlatform == PlatformType.OSX && e.Modifiers.HasModifier(Modifiers.Meta))
{
// equivalent to ctrl+u on non-osx
Text = Text.Substring(CursorPosition);
CursorPosition = 0;
}
else
{
CursorPosition--;
Text = Text.Remove(CursorPosition, 1);
}
OnTextEdited();
return true;
}
if (e.Key == Keycode.V &&
((Platform.CurrentPlatform != PlatformType.OSX && e.Modifiers.HasModifier(Modifiers.Ctrl)) ||
(Platform.CurrentPlatform == PlatformType.OSX && e.Modifiers.HasModifier(Modifiers.Meta))))
{
var clipboardText = Game.Renderer.GetClipboardText();
// Take only the first line of the clipboard contents
var nl = clipboardText.IndexOf('\n');
if (nl > 0)
clipboardText = clipboardText.Substring(0, nl);
clipboardText = clipboardText.Trim();
if (clipboardText.Length > 0)
HandleTextInput(clipboardText);
return true;
}
return true;
}