Current File : /www/varak.net/wiki.varak.net/extensions/VisualEditor/lib/ve/src/ui/ve.ui.DataTransferItem.js
/**
* Data transfer item wrapper
*
* @class
* @constructor
* @param {string} kind Item kind, e.g. 'string' or 'file'
* @param {string} type MIME type
* @param {Object} [data] Data object to wrap or convert
* @param {string} [data.dataUri] Data URI to convert to a blob
* @param {Blob} [data.blob] File blob
* @param {string} [data.stringData] String data
* @param {string} [data.htmlStringData] HTML string data
* @param {DataTransferItem} [data.item] Native data transfer item
* @param {string} [name] Item's name, for types which support it, e.g. File
*/
ve.ui.DataTransferItem = function VeUiDataTransferItem( kind, type, data, name ) {
this.kind = kind;
this.type = type;
this.data = data || {};
this.blob = this.data.blob || null;
this.stringData = this.data.stringData || ve.getProp( this.blob, 'name' ) || '';
this.name = name;
};
/* Inheritance */
OO.initClass( ve.ui.DataTransferItem );
/* Static methods */
/**
* Create a data transfer item from a file blob.
*
* @param {Blob} blob File blob
* @param {string} [htmlStringData] HTML string representation of data transfer
* @return {ve.ui.DataTransferItem} New data transfer item
*/
ve.ui.DataTransferItem.static.newFromBlob = function ( blob, htmlStringData ) {
return new ve.ui.DataTransferItem( 'file', blob.type, { blob: blob, htmlStringData: htmlStringData }, blob.name );
};
/**
* Create a data transfer item from a data URI.
*
* @param {string} dataUri Data URI
* @param {string} [htmlStringData] HTML string representation of data transfer
* @return {ve.ui.DataTransferItem} New data transfer item
*/
ve.ui.DataTransferItem.static.newFromDataUri = function ( dataUri, htmlStringData ) {
var parts = dataUri.split( ',' );
return new ve.ui.DataTransferItem( 'file', parts[ 0 ].match( /^data:([^;]+)/ )[ 1 ], { dataUri: parts[ 1 ], htmlStringData: htmlStringData } );
};
/**
* Create a data transfer item from string data.
*
* @param {string} stringData Native string data
* @param {string} [type] Native MIME type
* @param {string} [htmlStringData] HTML string representation of data transfer
* @return {ve.ui.DataTransferItem} New data transfer item
*/
ve.ui.DataTransferItem.static.newFromString = function ( stringData, type, htmlStringData ) {
return new ve.ui.DataTransferItem( 'string', type || 'text/plain', { stringData: stringData, htmlStringData: htmlStringData } );
};
/**
* Create a data transfer item from a native data transfer item.
*
* @param {DataTransferItem} item Native data transfer item
* @param {string} [htmlStringData] HTML string representation of data transfer
* @return {ve.ui.DataTransferItem} New data transfer item
*/
ve.ui.DataTransferItem.static.newFromItem = function ( item, htmlStringData ) {
return new ve.ui.DataTransferItem( item.kind, item.type, { item: item, htmlStringData: htmlStringData }, item.getAsFile().name );
};
/**
* Get file blob
*
* Generically getAsFile returns a Blob, which could be a File.
*
* @return {Blob} File blob
*/
ve.ui.DataTransferItem.prototype.getAsFile = function () {
var binary, array, i;
if ( this.data.item ) {
return this.data.item.getAsFile();
}
if ( !this.blob && this.data.dataUri ) {
binary = atob( this.data.dataUri );
delete this.data.dataUri;
array = [];
for ( i = 0; i < binary.length; i++ ) {
array.push( binary.charCodeAt( i ) );
}
this.blob = new Blob(
[ new Uint8Array( array ) ],
{ type: this.type }
);
}
return this.blob;
};
/**
* Get the extension of the item's name
*
* @return {string|null} The extension of the item's name, or null if not present
*/
ve.ui.DataTransferItem.prototype.getExtension = function () {
return this.name ? this.name.split( '.' ).pop() : null;
};
/**
* Get string data
*
* Differs from native DataTransferItem#getAsString by being synchronous
*
* @return {string} String data
*/
ve.ui.DataTransferItem.prototype.getAsString = function () {
return this.stringData;
};
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