// $Id = LocalFile.js,v 1.12 2010-01-02 09 =45 =14 gaudenz Exp $
// Copyright (c) 2006-2014, JGraph Ltd
/**
 * Constructs a new point for the optional x and y coordinates. If no
 * coordinates are given, then the default values for <x> and <y> are used.
 * @constructor
 * @class Implements a basic 2D point. Known subclassers = {@link mxRectangle}.
 * @param {number} x X-coordinate of the point.
 * @param {number} y Y-coordinate of the point.
 */
LocalFile = function(ui, data, title, temp)
{
	DrawioFile.call(this, ui, data);
	
	this.title = title;
	this.mode = (temp) ? null : App.MODE_DEVICE;
};

//Extends mxEventSource
mxUtils.extend(LocalFile, DrawioFile);

/**
 * Translates this point by the given vector.
 * 
 * @param {number} dx X-coordinate of the translation.
 * @param {number} dy Y-coordinate of the translation.
 */
LocalFile.prototype.isAutosave = function()
{
	return false;
};

/**
 * Translates this point by the given vector.
 * 
 * @param {number} dx X-coordinate of the translation.
 * @param {number} dy Y-coordinate of the translation.
 */
LocalFile.prototype.getMode = function()
{
	return this.mode;
};

/**
 * Translates this point by the given vector.
 * 
 * @param {number} dx X-coordinate of the translation.
 * @param {number} dy Y-coordinate of the translation.
 */
LocalFile.prototype.getTitle = function()
{
	return this.title;
};

/**
 * Translates this point by the given vector.
 * 
 * @param {number} dx X-coordinate of the translation.
 * @param {number} dy Y-coordinate of the translation.
 */
LocalFile.prototype.isRenamable = function()
{
	return true;
};

/**
 * Translates this point by the given vector.
 * 
 * @param {number} dx X-coordinate of the translation.
 * @param {number} dy Y-coordinate of the translation.
 */
LocalFile.prototype.save = function(revision, success, error)
{
	this.saveAs(this.title, success, error);
};

/**
 * Translates this point by the given vector.
 * 
 * @param {number} dx X-coordinate of the translation.
 * @param {number} dy Y-coordinate of the translation.
 */
LocalFile.prototype.saveAs = function(title, success, error)
{
	this.saveFile(title, false, success, error);
};

/**
 * Translates this point by the given vector.
 * 
 * @param {number} dx X-coordinate of the translation.
 * @param {number} dy Y-coordinate of the translation.
 */
LocalFile.prototype.saveFile = function(title, revision, success, error)
{
	this.title = title;

	// Updates data after changing file name
	this.updateFileData();
	var data = this.getData();
	
	if (this.ui.isOfflineApp() || this.ui.isLocalFileSave())
	{
		this.ui.doSaveLocalFile(data, title, 'text/xml');
	}
	else
	{
		if (data.length < MAX_REQUEST_SIZE)
		{
			var dot = title.lastIndexOf('.');
			var format = (dot > 0) ? title.substring(dot + 1) : 'xml';

			// Do not update modified flag
			new mxXmlRequest(SAVE_URL, 'format=' + format + '&filename=' +
				encodeURIComponent(title) + '&xml=' +
				encodeURIComponent(data)).simulate(document, '_blank');
		}
		else
		{
			this.ui.handleError({message: mxResources.get('drawingTooLarge')}, mxResources.get('error'), mxUtils.bind(this, function()
			{
				mxUtils.popup(data);
			}));
		}
	}
	
	this.setModified(false);
	this.contentChanged();
	
	if (success != null)
	{
		success();
	}
};

/**
 * Translates this point by the given vector.
 * 
 * @param {number} dx X-coordinate of the translation.
 * @param {number} dy Y-coordinate of the translation.
 */
LocalFile.prototype.rename = function(title, success, error)
{
	this.title = title;
	this.descriptorChanged();
	
	if (success != null)
	{
		success();
	}
};

/**
 * Returns the location as a new object.
 * @type mx.Point
 */
LocalFile.prototype.open = function()
{
	this.ui.setFileData(this.getData());
	
	// Only used to update the status when the file changes
	this.changeListener = mxUtils.bind(this, function(sender, eventObject)
	{
		this.setModified(true);
		this.addUnsavedStatus();
	});
	
	this.ui.editor.graph.model.addListener(mxEvent.CHANGE, this.changeListener);
};