svgedit/opera-widget/handlers.js

// Note: This JavaScript file must be included as the last script on the main HTML editor page to override the open/save handlers
$(function() {
	if(window.opera && window.opera.io && window.opera.io.filesystem) {
		svgCanvas.setCustomHandlers({
			'open':function() {
				try {
					window.opera.io.filesystem.browseForFile(
						new Date().getTime(), /* mountpoint name */
						"", /* default location */
						function(file) {
							try {
								if (file) {
									fstream = file.open(file, "r");
									var output = "";
									while (!fstream.eof) {
										output += fstream.readLine("UTF-16");
									}
									
									svgCanvas.setSvgString(output); /* 'this' is bound to the filestream object here */
								}
							}
							catch(e) {
								console.log("Reading file failed.");
							}
						},
						false, /* not persistent */
						false, /* no multiple selections */
						"*.svg" /* file extension filter */
					);
				}
				catch(e) {
					console.log("Open file failed.");
				}

			},
			'save':function(svg) {
				try {
					window.opera.io.filesystem.browseForSave(
						new Date().getTime(), /* mountpoint name */
						"", /* default location */
						function(file) {
							try {
								if (file) {
									var fstream = file.open(file, "w");
									fstream.write(svg, "UTF-8");
									fstream.close();
								}
							}
							catch(e) {
								console.log("Write to file failed.");
							}
						}, 
						false /* not persistent */
					);
				}
				catch(e) {
					console.log("Save file failed.");
				}
			}
		});
	}
});