modify

Helius

2021-01-12 1222f56d66e861692a8cd779d5f58b1566af5f63

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/*
    Queue Plug-in
    
    Features:
        *Adds a cancelQueue() method for cancelling the entire queue.
        *All queued files are uploaded when startUpload() is called.
        *If false is returned from uploadComplete then the queue upload is stopped.
         If false is not returned (strict comparison) then the queue upload is continued.
        *Adds a QueueComplete event that is fired when all the queued files have finished uploading.
         Set the event handler with the queue_complete_handler setting.
        
    */
 
var SWFUpload;
if (typeof(SWFUpload) === "function") {
    SWFUpload.queue = {};
    
    SWFUpload.prototype.initSettings = (function (oldInitSettings) {
        return function () {
            if (typeof(oldInitSettings) === "function") {
                oldInitSettings.call(this);
            }
            
            this.queueSettings = {};
            
            this.queueSettings.queue_cancelled_flag = false;
            this.queueSettings.queue_upload_count = 0;
            
            this.queueSettings.user_upload_complete_handler = this.settings.upload_complete_handler;
            this.queueSettings.user_upload_start_handler = this.settings.upload_start_handler;
            this.settings.upload_complete_handler = SWFUpload.queue.uploadCompleteHandler;
            this.settings.upload_start_handler = SWFUpload.queue.uploadStartHandler;
            
            this.settings.queue_complete_handler = this.settings.queue_complete_handler || null;
        };
    })(SWFUpload.prototype.initSettings);
 
    SWFUpload.prototype.startUpload = function (fileID) {
        this.queueSettings.queue_cancelled_flag = false;
        this.callFlash("StartUpload", [fileID]);
    };
 
    SWFUpload.prototype.cancelQueue = function () {
        this.queueSettings.queue_cancelled_flag = true;
        this.stopUpload();
        
        var stats = this.getStats();
        while (stats.files_queued > 0) {
            this.cancelUpload();
            stats = this.getStats();
        }
    };
    
    SWFUpload.queue.uploadStartHandler = function (file) {
        var returnValue;
        if (typeof(this.queueSettings.user_upload_start_handler) === "function") {
            returnValue = this.queueSettings.user_upload_start_handler.call(this, file);
        }
        
        // To prevent upload a real "FALSE" value must be returned, otherwise default to a real "TRUE" value.
        returnValue = (returnValue === false) ? false : true;
        
        this.queueSettings.queue_cancelled_flag = !returnValue;
 
        return returnValue;
    };
    
    SWFUpload.queue.uploadCompleteHandler = function (file) {
        var user_upload_complete_handler = this.queueSettings.user_upload_complete_handler;
        var continueUpload;
        
        if (file.filestatus === SWFUpload.FILE_STATUS.COMPLETE) {
            this.queueSettings.queue_upload_count++;
        }
 
        if (typeof(user_upload_complete_handler) === "function") {
            continueUpload = (user_upload_complete_handler.call(this, file) === false) ? false : true;
        } else if (file.filestatus === SWFUpload.FILE_STATUS.QUEUED) {
            // If the file was stopped and re-queued don't restart the upload
            continueUpload = false;
        } else {
            continueUpload = true;
        }
        
        if (continueUpload) {
            var stats = this.getStats();
            if (stats.files_queued > 0 && this.queueSettings.queue_cancelled_flag === false) {
                this.startUpload();
            } else if (this.queueSettings.queue_cancelled_flag === false) {
                this.queueEvent("queue_complete_handler", [this.queueSettings.queue_upload_count]);
                this.queueSettings.queue_upload_count = 0;
            } else {
                this.queueSettings.queue_cancelled_flag = false;
                this.queueSettings.queue_upload_count = 0;
            }
        }
    };
}