drawio-offline
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diagrams.net desktop
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JavaScript
// $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, fileHandle, desc)
{
DrawioFile.call(this, ui, data);
this.title = title;
this.mode = (temp) ? null : App.MODE_DEVICE;
this.fileHandle = fileHandle;
this.desc = desc;
};
//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 this.fileHandle != null && !this.invalidFileHandle && DrawioFile.prototype.isAutosave.apply(this, arguments);
};
/**
* Specifies if the autosave checkbox should be shown in the document
* properties dialog. Default is false.
*/
LocalFile.prototype.isAutosaveOptional = function()
{
return this.fileHandle != null;
};
/**
* 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.saveAs = function(title, success, error)
{
this.saveFile(title, false, success, error);
};
/**
* Adds all listeners.
*/
LocalFile.prototype.getDescriptor = function()
{
return this.desc;
};
/**
* Updates the descriptor of this file with the one from the given file.
*/
LocalFile.prototype.setDescriptor = function(desc)
{
this.desc = desc;
};
/**
* 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.getLatestVersion = function(success, error)
{
if (this.fileHandle == null)
{
success(null);
}
else
{
this.ui.loadFileSystemEntry(this.fileHandle, 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, useCurrentData)
{
if (title != this.title)
{
this.fileHandle = null;
this.desc = null;
}
this.title = title;
// Updates data after changing file name
if (!useCurrentData)
{
this.updateFileData();
}
var binary = this.ui.useCanvasForExport && /(\.png)$/i.test(this.getTitle());
this.setShadowModified(false);
var savedData = this.getData();
var done = mxUtils.bind(this, function()
{
this.setModified(this.getShadowModified());
this.contentChanged();
if (success != null)
{
success();
}
});
var doSave = mxUtils.bind(this, function(data)
{
if (this.fileHandle != null)
{
// Sets shadow modified state during save
if (!this.savingFile)
{
this.savingFileTime = new Date();
this.savingFile = true;
var errorWrapper = mxUtils.bind(this, function(e)
{
this.savingFile = false;
if (error != null)
{
// Wraps error object to offer save status option
error({error: e});
}
});
this.fileHandle.createWritable().then(mxUtils.bind(this, function(writable)
{
this.fileHandle.getFile().then(mxUtils.bind(this, function(newDesc)
{
this.invalidFileHandle = null;
if (this.desc.lastModified == newDesc.lastModified)
{
writable.write((binary) ? this.ui.base64ToBlob(data, 'image/png') : data).then(mxUtils.bind(this, function()
{
writable.close().then(mxUtils.bind(this, function()
{
this.fileHandle.getFile().then(mxUtils.bind(this, function(desc)
{
var lastDesc = this.desc;
this.savingFile = false;
this.desc = desc;
this.fileSaved(savedData, lastDesc, done, errorWrapper);
}), errorWrapper);
}), errorWrapper);
}), errorWrapper);
}
else
{
this.inConflictState = true;
errorWrapper();
}
}), mxUtils.bind(this, function(e)
{
this.invalidFileHandle = true;
errorWrapper(e);
}));
}), errorWrapper);
}
}
else
{
if (this.ui.isOfflineApp() || this.ui.isLocalFileSave())
{
this.ui.doSaveLocalFile(data, title, (binary) ?
'image/png' : 'text/xml', binary);
}
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 +
'&xml=' + encodeURIComponent(data) +
'&filename=' + encodeURIComponent(title) +
((binary) ? '&binary=1' : '')).
simulate(document, '_blank');
}
else
{
this.ui.handleError({message: mxResources.get('drawingTooLarge')}, mxResources.get('error'), mxUtils.bind(this, function()
{
mxUtils.popup(data);
}));
}
}
done();
}
});
if (binary)
{
var p = this.ui.getPngFileProperties(this.ui.fileNode);
this.ui.getEmbeddedPng(mxUtils.bind(this, function(imageData)
{
doSave(imageData);
}), error, (this.ui.getCurrentFile() != this) ?
savedData : null, p.scale, p.border);
}
else
{
doSave(savedData);
}
};
/**
* 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());
this.installListeners();
};