swfupload.queue_wev8.js 3.42 KB
/*
	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.customSettings.queue_cancelled_flag = false;
			this.customSettings.queue_upload_count = 0;

			this.settings.user_upload_complete_handler = this.settings.upload_complete_handler;
			this.settings.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) {
		//console.log("startUpload走___swfupload.queue_wev8.js");
		if(getBrowserInfo() && typeof this.settings.button_placeholder_id != "object") {
			//console.log("sb2");
			//var _this = SWFUpload.instances[this.movieName];
			var _this = this;
			if(!!_this.newUploader) {
				_this.newUploader.start();
			}
			return false;
		} else {
			this.customSettings.queue_cancelled_flag = false;
			this.callFlash("StartUpload", [fileID]);
		}
	};

	SWFUpload.prototype.cancelQueue = function() {
		this.customSettings.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.customSettings.user_upload_start_handler) === "function") {
			returnValue = this.customSettings.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.customSettings.queue_cancelled_flag = !returnValue;

		return returnValue;
	};

	SWFUpload.queue.uploadCompleteHandler = function(file) {
		var user_upload_complete_handler = this.settings.user_upload_complete_handler;
		var continueUpload;

		if(file.filestatus === SWFUpload.FILE_STATUS.COMPLETE) {
			this.customSettings.queue_upload_count++;
		}

		if(typeof(user_upload_complete_handler) === "function") {
			continueUpload = (user_upload_complete_handler.call(this, file) === false) ? false : true;
		} else {
			continueUpload = true;
		}

		if(continueUpload) {
			var stats = this.getStats();
			if(stats.files_queued > 0 && this.customSettings.queue_cancelled_flag === false) {
				this.startUpload();
			} else if(this.customSettings.queue_cancelled_flag === false) {
				this.queueEvent("queue_complete_handler", [this.customSettings.queue_upload_count]);
				this.customSettings.queue_upload_count = 0;
			} else {
				this.customSettings.queue_cancelled_flag = false;
				this.customSettings.queue_upload_count = 0;
			}
		}
	};
}