codenothing/CSSCompressor

var CSSCompressor = global.CSSCompressor,
    none = { format: CSSCompressor.FORMAT_MAX };

// Static methods
CSSCompressor.extend({

    MODE_NONE: 'none',
    MODE_DEFAULT: 'default',
    MODE_MAX: 'max',

    mode: function( name, options ) {
        var settings = {
            format: CSSCompressor.FORMAT_NONE
        };

        // Block mode additions that already exist
        if ( CSSCompressor.mode[ name ] ) {
            throw new Error( "'" + name  + "' mode already exists" );
        }

        // Setup a settings object that turns everything to true
        CSSCompressor.each( CSSCompressor.rule, function( rule, name ) {
            settings[ name ] = true;
        });

        // Attach mode
        CSSCompressor.mode[ name ] = CSSCompressor.extend( true, settings, options || {} );
    }

});


// None compression mode turns all settings off
CSSCompressor.each( CSSCompressor.rule, function( rule, name ) {
    none[ name ] = false;
});
CSSCompressor.mode( CSSCompressor.MODE_NONE, none );


// Default compression mode is almost fully cross browser, and won't mess up your sheet order
CSSCompressor.mode( CSSCompressor.MODE_DEFAULT, {
    "Hex to Color": false,
    "Strict ID": false,
    "Font Combinations": false,
    "Border Radius Combinations": false,
    "List Style Combinations": false,
    "Sort Properties": false,
    "Common Selectors": false,
    "Common Rules": false,
    "Duplicate Properties": false
});

// Full compression mode turns all options on
CSSCompressor.mode( CSSCompressor.MODE_MAX );


// Assume all new options added after default rules are compiled should be turned on
CSSCompressor.addRuleCallback(function( rule ) {
    CSSCompressor.each( CSSCompressor.mode, function( mode, name ) {
        if ( name !== CSSCompressor.MODE_NONE ) {
            mode[ rule.name ] = true;
        }
    });
});