Set default indent for custom language plugin?

Lars Beiderbecke

Created December 18, 2015 18:51

I've created a CustomCodeStyleSetting and both CodeStyleSettingsProvider and LanguageCodeStyleSettingsProvider. The custom CodeStyleSettingsPanel now sets the general indent for my language:

public class MyCodeStyleSettingsPanel extends CodeStyleAbstractPanel {
  public void apply(CodeStyleSettings settings) {
      MyCodeStyleSettings mySettings = settings.getCustomSettings(MyCodeStyleSettings.class);
      mySettings.XYZ = getIntValue(myXyz);
      // sync indent settings
      CommonCodeStyleSettings.IndentOptions indentOptions = settings.getCommonSettings(MyLanguage.INSTANCE).getIndentOptions();
      if (indentOptions != null)
          indentOptions.INDENT_SIZE = indentOptions.CONTINUATION_INDENT_SIZE = mySettings.XYZ;
  }
}

But how (and where) can I set the default indent for my language before the user opens the code style settings dialog for the first time?

3 comments

Lars Beiderbecke

Created December 19, 2015 14:08

For reference - I think I found the solution.

Instead of LanguageCodeStyleSettings I'm using the FileIndentOptionsProvider extension point, this also handles the indent update of the custom settings:

public class MyFileIndentOptionsProvider extends FileIndentOptionsProvider {
    @Nullable
    @Override
    public CommonCodeStyleSettings.IndentOptions getIndentOptions(@NotNull CodeStyleSettings codeStyleSettings,
                                                                  @NotNull PsiFile psiFile) {
        if (psiFile instanceof MyFile) {
            CommonCodeStyleSettings.IndentOptions options = new CommonCodeStyleSettings.IndentOptions();
            MyCodeStyleSettings customSettings = codeStyleSettings.getCustomSettings(MyCodeStyleSettings.class);
            options.INDENT_SIZE = options.CONTINUATION_INDENT_SIZE = customSettings != null ? customSettings.XYZ : 69;
            return options;
        }
        return null;
    }
}

Brent McLeod

Created December 20, 2015 21:25

I ended up using the following for my plugin, which seems to work:

langCodeStyleSettingsProvider extension point

class extended from LanguageCodeStyleSettingsProvider

@Override
public CommonCodeStyleSettings getDefaultCommonSettings() {
   CommonCodeStyleSettings defaultSettings = new CommonCodeStyleSettings( getLanguage() );
   CommonCodeStyleSettings.IndentOptions indentOptions = defaultSettings.initIndentOptions();
   indentOptions.INDENT_SIZE = 4;
   indentOptions.CONTINUATION_INDENT_SIZE = 8;
   indentOptions.TAB_SIZE = 4;
   indentOptions.USE_TAB_CHARACTER = true;

   defaultSettings.LINE_COMMENT_AT_FIRST_COLUMN = false;
   defaultSettings.KEEP_FIRST_COLUMN_COMMENT = false;

   return defaultSettings;
}

Lars Beiderbecke

Created December 24, 2015 08:26

Thanks for the alternative solution!

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