source: branches/testa-x/js/bookmarkmgr.js @ 101

class BookmarkMgr {
    constructor( max_display_name_length ) {
        this.paths = []
        this.items = {}
        this.max_display_name_length = max_display_name_length
    }

    add( path , display_name = null){
        let result = this.paths.indexOf( path )
        if( result < 0 ){
            this.paths.push( path )
            this.items[ path ] = new Bookmark( path , this.max_display_name_length , display_name )
        }
        return this.items[ path ]
    }

    remove( path ){
        let result = this.paths.indexOf( path )
        if( result >= 0 ){
            delete this.items[ path ]
            delete this.paths[ result ]
        }
    }

    get( path ){
        let ret = null
        let result = this.paths.indexOf( path )
        if( result >= 0 ){
            ret = this.items[ path ]
        }
        return ret
    }

    display_name( path ){
        let result = this.paths.indexOf( path )
        let disp = null
        if( result >= 0 ){
            disp = this.items[ path ].display_name
        }
        return disp
    }

    get_paths(){
        return this.paths
    }

    get_display_names(){
        const array = thils.paths
        return array.map( function( path ){ 
            return this.items[ path ].display_name
        } )
    }

    get_restricted_display_name( path ){
        return path.substr( -this.max_display_name_length )
    }

    get_items() {
        return this.items
    }

    max_display_name_length(){
        return this.max_display_name_length
    }
}