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

//"php/content.php"
class Remotex {
    constructor( filename ){
        this.filename = filename
//      this.num = num
//      this.part = part
    }

    make_url_params( arrayx ){
        let params = new URLSearchParams();
        arrayx.reduce(function(acc, element, index, array) {
            acc.append(element[0], element[1]);
            return acc;
        }, params)
        return params;
    }

    async get_filelist_from_remote( num, part, func ) {
console.log("remotex get_filelist_from_remote num=" + num + " part=" + part )
        let param_array = [['cmd', 'get_filelistx'], ['num', num ], ['part', part ]]
        await this.fetchx( this.filename , param_array, func )
    }

    async update_filelist( num, part, func ) {
console.log("remotex update_filelist num=" + num + " part=" + part )
        let param_array = [['cmd', 'update_filelistx'], ['num', num ], ['part', part ]]
        await this.fetchx( this.filename , param_array, func )
    }

    async get_content(num, part, path , func) {
console.log("remotex get_content num=" + num + " part=" + part )
        console.log("part=" + part)
        let param_array = [['cmd', 'get_content'], ['num', num ], ['part', part ], ['path', path]]
        await this.fetchx( this.filename , param_array, func )
    }

    async fetchx( filename, param_array, func) {
        let params = this.make_url_params( param_array )
        fetch(`${filename}?${params}`)
            .then((response) => response.text())
            .then((text) => { console.log(func) ; func(text)})
            .catch((error) => console.log(error));
    }

    handleDownload(e) {
        let dl = document.getElementById("data-down-download")

        if( Globalx[ e.data.part ].key_indicate_file === true ){
            this.get_content( e.data.num, e.data.part , Globalx[ e.data.part ].key , (content) => {
                let blob = new Blob([ content ], { "type" : "text/plain" });

                if (window.navigator.msSaveBlob) { 
                    window.navigator.msSaveBlob(blob, Globalx[ e.data.part ].item_name); 
                    
                    // msSaveOrOpenBlobの場合はファイルを保存せずに開ける
                    window.navigator.msSaveOrOpenBlob(blob, Globalx[ e.data.part ].item_name); 
                } else {
                    dl.download = Globalx[ e.data.part ].item_name
                    dl.href = window.URL.createObjectURL(blob);
                }
            })
        }
        else{
            e.preventDefault()
            dl.href = ""
            dl.download = ""
        }
    }
}

function handleDownload(e) {
    Globalx.remotex.handleDownload(e)
}