function submitCancel(e){
    alert('ファイルのアップロードが完了するまでお待ちください。');
    Event.stop(e);
}

function removeEvent(e){
    Event.stopObserving(window, 'beforeunload', blurfunc);
}

function blurfunc(e){
    return e.returnValue = '他のページへ移動するとアップロードしたファイルは失われます。';
}

function fileQueueError(file, errorCode, message) {
    try {
        var errorName = "";

        if (errorCode === SWFUpload.QUEUE_ERROR.QUEUE_LIMIT_EXCEEDED) {
            errorName = 'アップロードできるファイルは、'+this.getSetting('file_upload_limit')+'ファイルまでです。';
        }

        if (errorName !== "") {
            alert(errorName);
            return;
        }

        var progress = new FileProgress(file,  this.customSettings.upload_target);
        switch (errorCode) {
        case SWFUpload.QUEUE_ERROR.ZERO_BYTE_FILE:
            progress.setError();
            progress.setStatus('ファイルを読み込むことができませんでした。');
            break;
        case SWFUpload.QUEUE_ERROR.FILE_EXCEEDS_SIZE_LIMIT:
            progress.setError();
            progress.setStatus('ファイルサイズが '+this.getSetting('file_size_limit')+' を超えているためアップロードできませんでした。');
            break;
        case SWFUpload.QUEUE_ERROR.ZERO_BYTE_FILE:
        case SWFUpload.QUEUE_ERROR.INVALID_FILETYPE:
        default:
            progress.setError();
            progress.setStatus(this.getSetting('file_types')+'以外のファイルはアップロードできません。');
            break;
        }
    } catch (ex) {
        this.debug(ex);
    }

}

function fileDialogComplete(numFilesSelected, numFilesQueued) {
    try {
        if (numFilesQueued > 0) {
            this.startUpload();
        }
    } catch (ex) {
        this.debug(ex);
    }
}

function uploadProgress(file, bytesLoaded) {

    try {
        Event.observe(window, "beforeunload", blurfunc);
        Event.observe($('oForm'), "submit", submitCancel);

        var percent = Math.ceil((bytesLoaded / file.size) * 100);

        var progress = new FileProgress(file,  this.customSettings.upload_target);
        progress.setProgress(percent);
        if (percent === 100) {
            progress.setStatus("ファイルをチェック中です。");
            progress.toggleCancel(false, this);
        } else {
            progress.setStatus("アップロード中...");
            progress.toggleCancel(true, this);
        }
    } catch (ex) {
        this.debug(ex);
    }
}

function uploadSuccess(file, serverData) {
    try {
        var progress = new FileProgress(file,  this.customSettings.upload_target);
        var func = new Function('return '+serverData);
        var result = func();
        if (result.error) {
            progress.setError();
            progress.setStatus('エラー: '+result.error);
            progress.toggleCancel(false);
            this.setStats({upload_errors: 1});
        }else{
            this.PDFPages = result.Pages;
            this.PDFSize = result.Size;
            this.PDFID = result.id;
        }
    } catch (ex) {
        this.debug(ex);
    }
}

function uploadComplete(file) {
    try {
        /*  I want the next upload to continue automatically so I'll call startUpload here */
        if (this.getStats().files_queued > 0) {
            this.startUpload();
        } else if (this.getStats().upload_errors > 0) {
            // error delete queue and reset limit
            this.setStats({successful_uploads:0});
            this.setStats({upload_errors:0});
        } else {
            var progress = new FileProgress(file,  this.customSettings.upload_target);
            this.setButtonDisabled(true);
            this.setButtonCursor(SWFUpload.CURSOR.ARROW);
            createHide('id', this.PDFID);
            createHide('pages', this.PDFPages);
            createHide('oname', file.name);
            createHide('size', this.PDFSize);
            Event.observe($('oForm'), "submit", removeEvent);
            Event.stopObserving($('oForm'), 'submit', submitCancel);
            progress.setComplete();
            progress.setStatus(this.PDFPages+"ページ / "+this.PDFSize+" のPDFファイルを受信しました。");
            progress.toggleCancel(false);
        }
    } catch (ex) {
        this.debug(ex);
    }
}

function uploadError(file, errorCode, message) {
    var progress;
    try {
        switch (errorCode) {
        case SWFUpload.UPLOAD_ERROR.FILE_CANCELLED:
            try {
                progress = new FileProgress(file,  this.customSettings.upload_target);
                progress.setCancelled();
                progress.setStatus("キャンセルしました。");
                progress.toggleCancel(false);
            }
            catch (ex1) {
                this.debug(ex1);
            }
            break;
        case SWFUpload.UPLOAD_ERROR.UPLOAD_STOPPED:
            try {
                progress = new FileProgress(file,  this.customSettings.upload_target);
                progress.setCancelled();
                progress.setStatus("停止しました。");
                progress.toggleCancel(true);
            }
            catch (ex2) {
                this.debug(ex2);
            }
        case SWFUpload.UPLOAD_ERROR.UPLOAD_LIMIT_EXCEEDED:
            break;
        default:
            progress = new FileProgress(file,  this.customSettings.upload_target);
            progress.setError();
            progress.setStatus(errorCode);
            progress.toggleCancel(true);
            break;
        }

    } catch (ex3) {
        this.debug(ex3);
    }

}

function createHide(name, value) {
    $(name).value = value;
}

function fadeIn(element, opacity) {
    var reduceOpacityBy = 5;
    var rate = 30;    // 15 fps


    if (opacity < 100) {
        opacity += reduceOpacityBy;
        if (opacity > 100) {
            opacity = 100;
        }

        if (element.filters) {
            try {
                element.filters.item("DXImageTransform.Microsoft.Alpha").opacity = opacity;
            } catch (e) {
                // If it is not set initially, the browser will throw an error.  This will set it if it is not set yet.
                element.style.filter = 'progid:DXImageTransform.Microsoft.Alpha(opacity=' + opacity + ')';
            }
        } else {
            element.style.opacity = opacity / 100;
        }
    }

    if (opacity < 100) {
        setTimeout(function () {
            fadeIn(element, opacity);
        }, rate);
    }
}



/* ******************************************
 *    FileProgress Object
 *    Control object for displaying file info
 * ****************************************** */

function FileProgress(file, targetID) {
    this.fileProgressID = "divFileProgress";

    this.fileProgressWrapper = document.getElementById(this.fileProgressID);
    if (!this.fileProgressWrapper) {
        this.fileProgressWrapper = document.createElement("div");
        this.fileProgressWrapper.className = "progressWrapper";
        this.fileProgressWrapper.id = this.fileProgressID;

        this.fileProgressElement = document.createElement("div");
        this.fileProgressElement.className = "progressContainer";

        var progressCancel = document.createElement("a");
        progressCancel.className = "progressCancel";
        progressCancel.href = "#";
        progressCancel.style.visibility = "hidden";
        progressCancel.appendChild(document.createTextNode(" "));

        var progressText = document.createElement("div");
        progressText.className = "progressName";
        progressText.appendChild(document.createTextNode(file.name));

        var progressBar = document.createElement("div");
        progressBar.className = "progressBarInProgress";

        var progressStatus = document.createElement("div");
        progressStatus.className = "progressBarStatus";
        progressStatus.innerHTML = "&nbsp;";

        this.fileProgressElement.appendChild(progressCancel);
        this.fileProgressElement.appendChild(progressText);
        this.fileProgressElement.appendChild(progressStatus);
        this.fileProgressElement.appendChild(progressBar);

        this.fileProgressWrapper.appendChild(this.fileProgressElement);

        document.getElementById(targetID).appendChild(this.fileProgressWrapper);
        fadeIn(this.fileProgressWrapper, 0);

    } else {
        this.fileProgressElement = this.fileProgressWrapper.firstChild;
        this.fileProgressElement.childNodes[1].firstChild.nodeValue = file.name;
    }

    this.height = this.fileProgressWrapper.offsetHeight;

}
FileProgress.prototype.setProgress = function (percentage) {
    this.fileProgressElement.className = "progressContainer green";
    this.fileProgressElement.childNodes[3].className = "progressBarInProgress";
    this.fileProgressElement.childNodes[3].style.width = percentage + "%";
};
FileProgress.prototype.setComplete = function () {
    this.fileProgressElement.className = "progressContainer blue";
    this.fileProgressElement.childNodes[3].className = "progressBarComplete";
    this.fileProgressElement.childNodes[3].style.width = "";

};
FileProgress.prototype.setError = function () {
    this.fileProgressElement.className = "progressContainer red";
    this.fileProgressElement.childNodes[3].className = "progressBarError";
    this.fileProgressElement.childNodes[3].style.width = "";

};
FileProgress.prototype.setCancelled = function () {
    this.fileProgressElement.className = "progressContainer";
    this.fileProgressElement.childNodes[3].className = "progressBarError";
    this.fileProgressElement.childNodes[3].style.width = "";

};
FileProgress.prototype.setStatus = function (status) {
    this.fileProgressElement.childNodes[2].innerHTML = status;
};

FileProgress.prototype.toggleCancel = function (show, swfuploadInstance) {
    this.fileProgressElement.childNodes[0].style.visibility = show ? "visible" : "hidden";
    if (swfuploadInstance) {
        var fileID = this.fileProgressID;
        this.fileProgressElement.childNodes[0].onclick = function () {
            swfuploadInstance.cancelUpload(fileID);
            return false;
        };
    }
};