svgedit/editor/extensions/ext-server_opensave.js

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/* eslint-disable no-var */
/* globals svgEditor, svgedit, svgCanvas, canvg, $ */
/*
* ext-server_opensave.js
*
* Licensed under the MIT License
*
* Copyright(c) 2010 Alexis Deveria
*
*/
svgEditor.addExtension('server_opensave', {
callback: function () {
'use strict';
function getFileNameFromTitle () {
var title = svgCanvas.getDocumentTitle();
// We convert (to underscore) only those disallowed Win7 file name characters
return $.trim(title).replace(/[/\\:*?"<>|]/g, '_');
}
function xhtmlEscape (str) {
return str.replace(/&(?!amp;)/g, '&amp;').replace(/"/g, '&quot;').replace(/</g, '&lt;'); // < is actually disallowed above anyways
}
function clientDownloadSupport (filename, suffix, uri) {
var a,
support = $('<a>')[0].download === '';
if (support) {
a = $('<a>hidden</a>').attr({download: (filename || 'image') + suffix, href: uri}).css('display', 'none').appendTo('body');
a[0].click();
return true;
}
}
var openSvgAction, importSvgAction, importImgAction,
openSvgForm, importSvgForm, importImgForm,
saveSvgAction = svgEditor.curConfig.extPath + 'filesave.php',
saveImgAction = svgEditor.curConfig.extPath + 'filesave.php',
// Create upload target (hidden iframe)
cancelled = false,
Utils = svgedit.utilities;
$('<iframe name="output_frame" src="#"/>').hide().appendTo('body');
svgEditor.setCustomHandlers({
save: function (win, data) {
var svg = '<?xml version="1.0" encoding="UTF-8"?>\n' + data, // Firefox doesn't seem to know it is UTF-8 (no matter whether we use or skip the clientDownload code) despite the Content-Disposition header containing UTF-8, but adding the encoding works
filename = getFileNameFromTitle();
if (clientDownloadSupport(filename, '.svg', 'data:image/svg+xml;charset=UTF-8;base64,' + Utils.encode64(svg))) {
return;
}
$('<form>').attr({
method: 'post',
action: saveSvgAction,
target: 'output_frame'
}).append('<input type="hidden" name="output_svg" value="' + xhtmlEscape(svg) + '">')
.append('<input type="hidden" name="filename" value="' + xhtmlEscape(filename) + '">')
.appendTo('body')
.submit().remove();
},
exportPDF: function (win, data) {
var filename = getFileNameFromTitle(),
datauri = data.dataurlstring;
if (clientDownloadSupport(filename, '.pdf', datauri)) {
return;
}
$('<form>').attr({
method: 'post',
action: saveImgAction,
target: 'output_frame'
}).append('<input type="hidden" name="output_img" value="' + datauri + '">')
.append('<input type="hidden" name="mime" value="application/pdf">')
.append('<input type="hidden" name="filename" value="' + xhtmlEscape(filename) + '">')
.appendTo('body')
.submit().remove();
},
// Todo: Integrate this extension with a new built-in exportWindowType, "download"
exportImage: function (win, data) {
var c,
issues = data.issues,
mimeType = data.mimeType,
quality = data.quality;
if (!$('#export_canvas').length) {
$('<canvas>', {id: 'export_canvas'}).hide().appendTo('body');
}
c = $('#export_canvas')[0];
c.width = svgCanvas.contentW;
c.height = svgCanvas.contentH;
Utils.buildCanvgCallback(function () {
canvg(c, data.svg, {renderCallback: function () {
var pre, filename, suffix,
datauri = quality ? c.toDataURL(mimeType, quality) : c.toDataURL(mimeType),
// uiStrings = svgEditor.uiStrings,
note = '';
// Check if there are issues
if (issues.length) {
pre = '\n \u2022 ';
note += ('\n\n' + pre + issues.join(pre));
}
if (note.length) {
alert(note);
}
filename = getFileNameFromTitle();
suffix = '.' + data.type.toLowerCase();
if (clientDownloadSupport(filename, suffix, datauri)) {
return;
}
$('<form>').attr({
method: 'post',
action: saveImgAction,
target: 'output_frame'
}).append('<input type="hidden" name="output_img" value="' + datauri + '">')
.append('<input type="hidden" name="mime" value="' + mimeType + '">')
.append('<input type="hidden" name="filename" value="' + xhtmlEscape(filename) + '">')
.appendTo('body')
.submit().remove();
}});
})();
}
});
// Do nothing if client support is found
if (window.FileReader) { return; }
// Change these to appropriate script file
openSvgAction = svgEditor.curConfig.extPath + 'fileopen.php?type=load_svg';
importSvgAction = svgEditor.curConfig.extPath + 'fileopen.php?type=import_svg';
importImgAction = svgEditor.curConfig.extPath + 'fileopen.php?type=import_img';
// Set up function for PHP uploader to use
svgEditor.processFile = function (str64, type) {
var xmlstr;
if (cancelled) {
cancelled = false;
return;
}
$('#dialog_box').hide();
if (type !== 'import_img') {
xmlstr = Utils.decode64(str64);
}
switch (type) {
case 'load_svg':
svgCanvas.clear();
svgCanvas.setSvgString(xmlstr);
svgEditor.updateCanvas();
break;
case 'import_svg':
svgCanvas.importSvgString(xmlstr);
svgEditor.updateCanvas();
break;
case 'import_img':
svgCanvas.setGoodImage(str64);
break;
}
};
// Create upload form
openSvgForm = $('<form>');
openSvgForm.attr({
enctype: 'multipart/form-data',
method: 'post',
action: openSvgAction,
target: 'output_frame'
});
// Create import form
importSvgForm = openSvgForm.clone().attr('action', importSvgAction);
// Create image form
importImgForm = openSvgForm.clone().attr('action', importImgAction);
// It appears necessary to rebuild this input every time a file is
// selected so the same file can be picked and the change event can fire.
function rebuildInput (form) {
form.empty();
var inp = $('<input type="file" name="svg_file">').appendTo(form);
function submit () {
// This submits the form, which returns the file data using svgEditor.processFile()
form.submit();
rebuildInput(form);
$.process_cancel('Uploading...', function () {
cancelled = true;
$('#dialog_box').hide();
});
}
if (form[0] === openSvgForm[0]) {
inp.change(function () {
// This takes care of the "are you sure" dialog box
svgEditor.openPrep(function (ok) {
if (!ok) {
rebuildInput(form);
return;
}
submit();
});
});
} else {
inp.change(function () {
// This submits the form, which returns the file data using svgEditor.processFile()
submit();
});
}
}
// Create the input elements
rebuildInput(openSvgForm);
rebuildInput(importSvgForm);
rebuildInput(importImgForm);
// Add forms to buttons
$('#tool_open').show().prepend(openSvgForm);
$('#tool_import').show().prepend(importSvgForm);
$('#tool_image').prepend(importImgForm);
}
});