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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) if (!HasKeyboardFocus)
return false; 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 = () => Func<int> getPrevWhitespaceIndex = () =>
Text.Substring(0, CursorPosition).TrimEnd().LastIndexOf(' ') + 1; Text.Substring(0, CursorPosition).TrimEnd().LastIndexOf(' ') + 1;
@@ -141,157 +129,156 @@ namespace OpenRA.Mods.Common.Widgets
return CursorPosition + trimmed_spaces + next_whitespace; return CursorPosition + trimmed_spaces + next_whitespace;
}; };
if (e.Key == Keycode.LEFT) Func<bool> isOSX = () => Platform.CurrentPlatform == PlatformType.OSX;
{
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--;
}
}
return true; switch (e.Key) {
} case Keycode.RETURN:
case Keycode.KP_ENTER:
if (OnEnterKey())
return true;
break;
if (e.Key == Keycode.RIGHT) case Keycode.TAB:
{ if (OnTabKey())
if (CursorPosition <= Text.Length - 1) { return true;
if ((Platform.CurrentPlatform != PlatformType.OSX && e.Modifiers.HasModifier(Modifiers.Ctrl)) || break;
(Platform.CurrentPlatform == PlatformType.OSX && e.Modifiers.HasModifier(Modifiers.Alt)))
{
CursorPosition = getNextWhitespaceIndex();
}
else
{
CursorPosition++;
}
}
return true; case Keycode.ESCAPE:
} if (OnEscKey())
return true;
break;
if (e.Key == Keycode.HOME) case Keycode.LALT:
{ if (OnAltKey())
CursorPosition = 0; return true;
return true; break;
}
if (e.Key == Keycode.END) case Keycode.LEFT:
{ if (CursorPosition > 0)
CursorPosition = Text.Length; if ((!isOSX() && e.Modifiers.HasModifier(Modifiers.Ctrl)) ||
return true; (isOSX() && e.Modifiers.HasModifier(Modifiers.Alt)))
} CursorPosition = getPrevWhitespaceIndex();
else
CursorPosition--;
break;
if (e.Key == Keycode.K && e.Modifiers.HasModifier(Modifiers.Ctrl) && case Keycode.RIGHT:
(Platform.CurrentPlatform != PlatformType.OSX)) if (CursorPosition <= Text.Length - 1)
{ if ((!isOSX() && e.Modifiers.HasModifier(Modifiers.Ctrl)) ||
// equivalent to cmd+delete on osx (isOSX() && e.Modifiers.HasModifier(Modifiers.Alt)))
if (CursorPosition < Text.Length) CursorPosition = getNextWhitespaceIndex();
{ else
Text = Text.Remove(CursorPosition); CursorPosition++;
OnTextEdited();
}
return true; break;
}
if (e.Key == Keycode.U && e.Modifiers.HasModifier(Modifiers.Ctrl) && case Keycode.HOME:
(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);
CursorPosition = 0; CursorPosition = 0;
OnTextEdited(); break;
return true;
}
}
if (e.Key == Keycode.DELETE) case Keycode.END:
{ CursorPosition = Text.Length;
if (CursorPosition < Text.Length) break;
{
if ((Platform.CurrentPlatform != PlatformType.OSX && e.Modifiers.HasModifier(Modifiers.Ctrl)) || case Keycode.K:
(Platform.CurrentPlatform == PlatformType.OSX && e.Modifiers.HasModifier(Modifiers.Alt))) // 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); 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; return true;
} }