/*
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* ext-foreignobject.js
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*
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* Licensed under the Apache License, Version 2
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*
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* Copyright(c) 2010 Jacques Distler
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* Copyright(c) 2010 Alexis Deveria
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*
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*/
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methodDraw.addExtension("foreignObject", function(S) {
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var svgcontent = S.svgcontent,
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addElem = S.addSvgElementFromJson,
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selElems,
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svgns = "http://www.w3.org/2000/svg",
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xlinkns = "http://www.w3.org/1999/xlink",
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xmlns = "http://www.w3.org/XML/1998/namespace",
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xmlnsns = "http://www.w3.org/2000/xmlns/",
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se_ns = "http://svg-edit.googlecode.com",
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htmlns = "http://www.w3.org/1999/xhtml",
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mathns = "http://www.w3.org/1998/Math/MathML",
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editingforeign = false,
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svgdoc = S.svgroot.parentNode.ownerDocument,
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started,
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newFO;
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var properlySourceSizeTextArea = function(){
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// TODO: remove magic numbers here and get values from CSS
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var height = $('#svg_source_container').height() - 80;
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$('#svg_source_textarea').css('height', height);
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};
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function showPanel(on) {
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var fc_rules = $('#fc_rules');
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if(!fc_rules.length) {
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fc_rules = $('<style id="fc_rules"><\/style>').appendTo('head');
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}
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fc_rules.text(!on?"":" #tool_topath { display: none !important; }");
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$('#foreignObject_panel').toggle(on);
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}
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function toggleSourceButtons(on) {
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$('#tool_source_save, #tool_source_cancel').toggle(!on);
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$('#foreign_save, #foreign_cancel').toggle(on);
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}
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// Function: setForeignString(xmlString, elt)
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// This function sets the content of element elt to the input XML.
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//
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// Parameters:
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// xmlString - The XML text.
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// elt - the parent element to append to
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//
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// Returns:
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// This function returns false if the set was unsuccessful, true otherwise.
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function setForeignString(xmlString) {
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var elt = selElems[0];
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try {
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// convert string into XML document
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var newDoc = Utils.text2xml('<svg xmlns="'+svgns+'" xmlns:xlink="'+xlinkns+'">'+xmlString+'</svg>');
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// run it through our sanitizer to remove anything we do not support
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S.sanitizeSvg(newDoc.documentElement);
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elt.parentNode.replaceChild(svgdoc.importNode(newDoc.documentElement.firstChild, true), elt);
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S.call("changed", [elt]);
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svgCanvas.clearSelection();
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} catch(e) {
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console.log(e);
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return false;
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}
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return true;
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};
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function showForeignEditor() {
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var elt = selElems[0];
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if (!elt || editingforeign) return;
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editingforeign = true;
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toggleSourceButtons(true);
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elt.removeAttribute('fill');
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var str = S.svgToString(elt, 0);
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$('#svg_source_textarea').val(str);
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$('#svg_source_editor').fadeIn();
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properlySourceSizeTextArea();
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$('#svg_source_textarea').focus();
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}
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function setAttr(attr, val) {
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svgCanvas.changeSelectedAttribute(attr, val);
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S.call("changed", selElems);
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}
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return {
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name: "foreignObject",
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svgicons: "extensions/foreignobject-icons.xml",
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buttons: [{
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id: "tool_foreign",
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type: "mode",
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title: "Foreign Object Tool",
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events: {
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'click': function() {
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svgCanvas.setMode('foreign')
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}
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}
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},{
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id: "edit_foreign",
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type: "context",
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panel: "foreignObject_panel",
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title: "Edit ForeignObject Content",
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events: {
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'click': function() {
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showForeignEditor();
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}
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}
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}],
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context_tools: [{
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type: "input",
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panel: "foreignObject_panel",
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title: "Change foreignObject's width",
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id: "foreign_width",
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label: "w",
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size: 3,
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events: {
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change: function() {
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setAttr('width', this.value);
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}
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}
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},{
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type: "input",
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panel: "foreignObject_panel",
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title: "Change foreignObject's height",
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id: "foreign_height",
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label: "h",
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events: {
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change: function() {
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setAttr('height', this.value);
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}
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}
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}, {
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type: "input",
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panel: "foreignObject_panel",
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title: "Change foreignObject's font size",
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id: "foreign_font_size",
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label: "font-size",
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size: 2,
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defval: 16,
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events: {
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change: function() {
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setAttr('font-size', this.value);
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}
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}
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}
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],
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callback: function() {
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$('#foreignObject_panel').hide();
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var endChanges = function() {
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$('#svg_source_editor').hide();
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editingforeign = false;
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$('#svg_source_textarea').blur();
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toggleSourceButtons(false);
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}
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// TODO: Needs to be done after orig icon loads
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setTimeout(function() {
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// Create source save/cancel buttons
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var save = $('#tool_source_save').clone()
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.hide().attr('id', 'foreign_save').unbind()
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.appendTo("#tool_source_back").click(function() {
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if (!editingforeign) return;
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if (!setForeignString($('#svg_source_textarea').val())) {
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$.confirm("Errors found. Revert to original?", function(ok) {
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if(!ok) return false;
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endChanges();
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});
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} else {
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endChanges();
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}
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// setSelectMode();
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});
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var cancel = $('#tool_source_cancel').clone()
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.hide().attr('id', 'foreign_cancel').unbind()
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.appendTo("#tool_source_back").click(function() {
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endChanges();
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});
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}, 3000);
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},
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mouseDown: function(opts) {
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var e = opts.event;
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if(svgCanvas.getMode() == "foreign") {
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started = true;
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newFO = S.addSvgElementFromJson({
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"element": "foreignObject",
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"attr": {
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"x": opts.start_x,
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"y": opts.start_y,
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"id": S.getNextId(),
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"font-size": 16, //cur_text.font_size,
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"width": "48",
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"height": "20",
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"style": "pointer-events:inherit"
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}
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});
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var m = svgdoc.createElementNS(mathns, 'math');
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m.setAttributeNS(xmlnsns, 'xmlns', mathns);
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m.setAttribute('display', 'inline');
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var mi = svgdoc.createElementNS(mathns, 'mi');
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mi.setAttribute('mathvariant', 'normal');
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mi.textContent = "\u03A6";
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var mo = svgdoc.createElementNS(mathns, 'mo');
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mo.textContent = "\u222A";
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var mi2 = svgdoc.createElementNS(mathns, 'mi');
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mi2.textContent = "\u2133";
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m.appendChild(mi);
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m.appendChild(mo);
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m.appendChild(mi2);
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newFO.appendChild(m);
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return {
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started: true
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}
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}
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},
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mouseUp: function(opts) {
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var e = opts.event;
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if(svgCanvas.getMode() == "foreign" && started) {
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var attrs = $(newFO).attr(["width", "height"]);
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keep = (attrs.width != 0 || attrs.height != 0);
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svgCanvas.addToSelection([newFO], true);
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return {
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keep: keep,
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element: newFO
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}
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}
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},
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selectedChanged: function(opts) {
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// Use this to update the current selected elements
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selElems = opts.elems;
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var i = selElems.length;
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while(i--) {
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var elem = selElems[i];
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if(elem && elem.tagName == "foreignObject") {
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if(opts.selectedElement && !opts.multiselected) {
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$('#foreign_font_size').val(elem.getAttribute("font-size"));
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$('#foreign_width').val(elem.getAttribute("width"));
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$('#foreign_height').val(elem.getAttribute("height"));
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showPanel(true);
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} else {
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showPanel(false);
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}
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} else {
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showPanel(false);
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}
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}
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},
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elementChanged: function(opts) {
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var elem = opts.elems[0];
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}
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};
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});
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