source: branches/testa-single-bookmark/js/bookmarkmgr.js @ 70

class BookmarkMgr {
    constructor( max_display_name_length , parts ) {
        this.paths = {}

        this.parts = parts
        this.parts.map( (part) => {
            this.paths[part] = []
        } )
        this.items = {}
        this.parts.map( (part) => {
            this.items[part] = {}
        } )
        this.max_display_name_length = max_display_name_length
    }

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

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

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

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

    get_paths(part){
        return this.paths[part]
    }

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

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

    get_items(part) {
        return this.items[part]
    }

    max_display_name_length(){
        return this.max_display_name_length
    }
}