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<!DOCTYPE html>
<!-- --------------------------------------- -->
<!-- Ganja.js playground and sample browser -->
<!-- --------------------------------------- -->
<HEAD>
<!-- mobile -->
<meta name="viewport" content="width=device-width, initial-scale=0.5, maximum-scale=0.5, user-scalable=no">
<!-- Global site tag (gtag.js) - Google Analytics -->
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function gtag(){dataLayer.push(arguments);}
gtag('js', new Date());
</script>
<!-- Fonts and Icons -->
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<link href="https://fonts.googleapis.com/css?family=Encode+Sans+Condensed" rel="stylesheet">
<!-- Local Style -->
<style>
body { background: #20262E; color: #FBFBFB; padding:0; margin:0; display:none; flex-direction:column; min-height:100vh; max-height:100vh; position:relative; overflow:hidden; }
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.card:hover { border:2px solid blue; opacity:1; }
.card p { position:absolute; bottom:-40px; color:#fbfbfb; white-space:nowrap; max-width:100%; overflow:hidden; }
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@keyframes ani {
0% { background:#FFFFFF }
50% { background:#FFCCCC }
100% { background:#FFFFFF }
}
</style>
<!-- ganja -->
<SCRIPT SRC="../ganja.js"></SCRIPT>
<!-- ace editor -->
<SCRIPT SRC="https://cdnjs.cloudflare.com/ajax/libs/ace/1.4.12/ace.js"></SCRIPT>
<!-- katex math typesetting -->
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/katex@0.10.0/dist/katex.min.css" integrity="sha384-9eLZqc9ds8eNjO3TmqPeYcDj8n+Qfa4nuSiGYa6DjLNcv9BtN69ZIulL9+8CqC9Y" crossorigin="anonymous">
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<!-- Body scroll lock for apple (issue #40) -->
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</HEAD>
<!-------------------------------------------->
<BODY>
<DIV CLASS="hider">
<DIV CLASS="intro">
<DIV CLASS="introBlock" STYLE="text-align:center">
<H1>The CoffeeShop</H1>
<p>Free ganja.js samples!</p>
<DIV CLASS="introButton" ONCLICK="closeBar();">× Close</DIV>
</DIV>
<DIV CLASS="introBlock">
<H3>Roll your own ganja :<H3>
<UL>
<LI>Browse the samples below.
<LI>Edit them, save and share.
<LI>Or hit the new button.
</UL>
<!--
<H3>Start with a boilerplate:</H3>
<SPAN CLASS="introButton"><SMALL>\(\mathbb R_{2,0,1}\)</SMALL> 2D PGA</SPAN>
<SPAN CLASS="introButton"><SMALL>\(\mathbb R_{3,0,1}\)</SMALL> 3D PGA</SPAN><BR>
<SPAN CLASS="introButton"><SMALL>\(\mathbb R_{3,1}\)</SMALL> 2D CGA</SPAN>
<SPAN CLASS="introButton"><SMALL>\(\mathbb R_{4,1}\)</SMALL> 3D CGA</SPAN>
-->
</DIV>
<DIV CLASS="introBlock">
<H3>Links :</H3>
<A TARGET="_BLANK" HREF="https://github.com/enkimute/ganja.js">Ganja.js on <b>github.</b></A>
<A TARGET="_BLANK" HREF="https://www.npmjs.com/package/ganja.js">Ganja.js on <b>npm.</b></A>
<A TARGET="_BLANK" HREF="https://beta.observablehq.com/@enkimute/ganja-js-cheat-sheets">ObservableHQ cheat-sheets.</A>
</DIV>
<DIV CLASS="introBlock">
<H3>Ganja.js is for:</H3>
<UL>
<LI>Learning and discovering Geometric Algebra
<LI>Testing GA Algorithms
<LI>Visualizing GA in any Algebra
<LI>Realtime GA in your own projects
</UL>
</DIV>
</DIV>
</DIV>
<DIV CLASS="header">
<H3 STYLE="flex-grow:1" ID="title">The CoffeeShop</H3>
<DIV CLASS="introButton" ID="new"><B>+</B> New</DIV>
<DIV CLASS="introButton" ID="save"><B>★</B> Save</DIV>
<DIV CLASS="introButton" ID="run"><B>▸</B> Run</DIV>
</DIV>
<DIV CLASS="content">
<DIV CLASS="left">
<DIV CLASS="tabs">
<DIV ID="tab1" CLASS="tab">free samples</DIV>
<DIV ID="tab2" CLASS="tab">my stash</DIV>
<DIV ID="tab3" CLASS="tab">inspect stash</DIV>
<DIV STYLE="flex-grow:1"></DIV>
<DIV ID="tab4" CLASS="rtab">?</DIV>
</DIV>
<DIV CLASS="leftc">
<DIV CLASS="properties" ID="properties">
<P>Stash Info</P>
<INPUT ID="titleInput" TYPE="text" PLACEHOLDER="title goes here"></INPUT>
<TEXTAREA ID="descriptionInput" ROWS=4 PLACEHOLDER="description goes here"></TEXTAREA>
<P>Image Options</P>
<INPUT ID="widthInput" TYPE="text" PLACEHOLDER="width in pixels"></INPUT>
<INPUT ID="heightInput" TYPE="text" PLACEHOLDER="height in pixels"></INPUT>
<INPUT TYPE="button" VALUE="download SVG/PNG" ONCLICK="saveImage()" STYLE="cursor:pointer"></INPUT>
<P>Stash URL <span STYLE="cursor:pointer">click to copy</span></P>
<INPUT ID="urlInput" TYPE="text" VALUE="http://"></INPUT>
<!--
<P>Stash Data <span>js : "data"</span></P>
<INPUT TYPE="text" PLACEHOLDER="url to data"></INPUT>
<DIV CLASS="dropzone">drop file here</DIV>
-->
<p>My stash</p>
<DIV ID="stash"></DIV>
</DIV>
<DIV CLASS="sampleGroup complex">Complex <SPAN>\(\mathbb R_{0,1} \cong \mathbb C\)</SPAN> </DIV> <DIV CLASS="group complex"></DIV>
<DIV CLASS="sampleGroup dual">Dual <SPAN>\(\mathbb R_{0,0,1} \cong \mathbb D\)</SPAN> </DIV> <DIV CLASS="group dual"></DIV>
<DIV CLASS="sampleGroup quaternion">Quaternion<SPAN>\(\mathbb R_{0,2} \cong \mathbb H\)</SPAN> </DIV> <DIV CLASS="group quaternion"></DIV>
<DIV CLASS="sampleGroup timespace">Timespace <SPAN>\(\mathbb R_{1,3} \cong \mathbb M\)</SPAN> </DIV> <DIV CLASS="group timespace"></DIV>
<DIV CLASS="sampleGroup ga3d">3D GA<SPAN>\(\mathbb R_{3}\)</SPAN> </DIV> <DIV CLASS="group ga3d"></DIV>
<DIV CLASS="sampleGroup pga2d">2D PGA <SPAN>\(\mathbb R_{2,0,1}\)</SPAN> </DIV> <DIV CLASS="group pga2d"></DIV>
<DIV CLASS="sampleGroup pga3d">3D PGA <SPAN>\(\mathbb R_{3,0,1}\)</SPAN> </DIV> <DIV CLASS="group pga3d"></DIV>
<DIV CLASS="sampleGroup cga2d">2D CGA <SPAN>\(\mathbb R_{3,1}\)</SPAN> </DIV> <DIV CLASS="group cga2d"></DIV>
<DIV CLASS="sampleGroup cga3d">3D CGA <SPAN>\(\mathbb R_{4,1}\)</SPAN> </DIV> <DIV CLASS="group cga3d"></DIV>
<DIV CLASS="sampleGroup mga3d">3D Mother Algebra<SPAN>\(\mathbb R_{4,4}\)</SPAN></DIV> <DIV CLASS="group mga3d"></DIV>
<DIV CLASS="sampleGroup csga2d">2D CSGA <SPAN>\(\mathbb R_{5,3}\)</SPAN> </DIV> <DIV CLASS="group csga2d"></DIV>
<DIV CLASS="sampleGroup ccga3d">3D CCGA <SPAN>\(\mathbb R_{6,3}\)</SPAN> </DIV> <DIV CLASS="group ccga3d"></DIV>
<DIV CLASS="sampleGroup qcga3d">3D QCGA <SPAN>\(\mathbb R_{9,6}\)</SPAN> </DIV> <DIV CLASS="group qcga3d"></DIV>
<DIV CLASS="sampleGroup c2dga">Cubic 2D GA<SPAN>\(\mathbb R_{9,7}\)</SPAN> </DIV> <DIV CLASS="group c2dga"></DIV>
<DIV CLASS="sampleGroup game">Game</DIV> <DIV CLASS="group game"></DIV>
<DIV CLASS="inspect">
<INPUT TYPE="edit" ID="editJSON"></INPUT>
<INPUT TYPE="button" ID="copyJSON" VALUE="Copy JSON to clipboard."</INPUT>
<TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0>
<THEAD>
<TR><TH WIDTH="30px">#<TH WIDTH="30px">Grade<TH>Name<TH WIDTH="80%">Value
</THEAD>
<TBODY ID="inspectTable">
</TBODY>
</TABLE>
<P>Basis and Metric</P>
<TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0>
<THEAD>
</THEAD>
<TBODY ID="inspectTable2">
</TBODY>
</TABLE>
</DIV>
<DIV CLASS="help">
<p>Ganja.js supports operator overloading and algebraic literals.</p>
<TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0>
<THEAD>
<TR><TH>Operator<TH>Javascript<TH>Name
</THEAD>
<TR><TD>\(a*b\)<TD>a*b<TD>Geometric Product
<TR><TD>\(a\wedge b\)<TD>a^b<TD>Outer Product
<TR><TD>\(a\vee b\)<TD>a&b<TD>Regressive Product
<TR><TD>\(a\cdot b\)<TD>a<<b<TD>Left Contraction
<TR><TD>\(a*b*\tilde a\)<TD>a>>>b<TD>Sandwich Product
<TR><TD>\(\tilde a\)<TD>~a<TD>Conjugate
<TR><TD>\(\bar a\)<TD>!a<TD>Dual
<TR><TD>\(\bar{\bar a}\)<TD>a.Reverse<TD>Reverse
<TR><TD>\(a^{-1}\)<TD>a**-1<TD>Inverse
<TR><TD>\(e^a\)<TD>Math.E**a<TD>Exponentiation
<TR><TD>\(a_{\langle b \rangle}\)<TD>a.Grade(b)<TD>Grade Extraction
<TR><TD>\(a+b\) or \(a-b\)<TD>a+b or a-b<TD>Multivector Addition/Subtraction
<TR><TD>\(4.2e_{12}\)<TD>4.2e12<TD>Blade Literals
<TBODY>
</TBODY>
</TABLE>
<p>Ganja.js supports vectors and matrices with multivector elements.</p>
<TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0>
<THEAD>
<TR><TH>Operator<TH>Javascript<TH>Name
</THEAD>
<TBODY>
<TR><TD STYLE="padding:5px">\(\bold v =
\begin{bmatrix}
e_1 & 0
\end{bmatrix}
\)<TD>v = [1e1,0];<TD>Vector
<TR><TD STYLE="padding:5px">\(\bold A =
\begin{bmatrix}
1 & 0 \\
0 & e_{12}
\end{bmatrix}
\)<TD>A = [[1,0],[0,1e12]];<TD>Matrix
<TR><TD>\(\bold v \cdot \bold w\)<TD>v*w<TD>Vector-Vector dot product.
<TR><TD>\(A \bold v\)<TD>A*v<TD>Matrix-Vector product.
<TR><TD>\(AB\)<TD>A*B<TD>Matrix-Matrix product.
<TR><TD>\(A^{HT}\)<TD>~A<TD>Conjugate-Transpose Matrix
</TBODY>
</TABLE>
<p>Ganja.js can graph 2D and 3D PGA and CGA elements.</p>
<TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0>
<THEAD>
<TR><TH>Element<TH>Description
</THEAD>
<TBODY>
<TR><TD>multivector<TD>point, pair, line, circle, sphere, plane
<TR><TD>number<TD>Sets color. (e.g. #80FF0000 - transparent red)
<TR><TD>string<TD>Label for the last drawn item
<TR><TD>[point,point]<TD>Line segment between two points
<TR><TD>[point,point,...,point]<TD>(convex) polygon
</TBODY>
</TABLE>
</DIV>
</DIV>
</DIV>
<DIV CLASS="gutter" ID="lgutter" TITLE="drag to size, double click to collapse"></DIV>
<DIV CLASS="center">
<IFRAME ID="sample" SRC="" FRAMEBORDER=0></IFRAME>
</DIV>
<DIV CLASS="gutter" ID="rgutter" TITLE="drag to size, double click to collapse"></DIV>
<DIV CLASS="right">
<PRE CLASS="source" ID="source"></PRE>
</DIV>
</DIV>
<SCRIPT>
// Data : built-in examples.
var examples = ["complex_mandelbrot","complex_least_squares",
"dual_differentiation","dual_backpropagation",
"quaternion_hue","quaternion_mandelbrot",
"timespace_lorentz",
"ga3d_rotor_estimation",
"pga2d_points_and_lines","pga2d_distances_and_angles","pga2d_project_and_reject","pga2d_rotors_and_translators","pga2d_isometries", "pga2d_inverse_kinematics","pga2d_separating_axis","pga2d_pose_estimation","pga2d_euler_line","pga2d_desargues_theorem","pga2d_differentiation","pga2d_physics_moon","pga2d_origami", "pga2d_poncelet", "pga2d_non_euclidean","pga2d_raytrace",
"pga3d_points_and_lines","pga3d_distances_and_angles","pga3d_rotors_and_translators","pga3d_icosahedron","pga3d_sampling","pga3d_slicing","pga3d_differentiation","pga3d_skinning","pga3d_physics_planets","pga3d_origami","pga3d_physics_symmetric_top","pga3d_physics_free_top","pga3d_objects","pga3d_levenberg_marquardt","pga3d_motor_orbits",
"chapter11_motor_reconstruction","chapter11_motors","chapter11_tricycle",
"cga2d_points_and_circles","cga2d_project_and_reject","cga2d_rotors_and_translators","cga2d_euler_line","cga2d_circle_fit","cga2d_conformal","cga2d_conformal2",
"cga3d_points_circles_lines","cga3d_points_spheres_planes","cga3d_dual_spheres_planes","cga3d_intersections","cga3d_project_reject","cga3d_opns_visualizer","cga3d_opns_line_circle","cga3d_json",
"mga3d_points_and_lines",
"ccga3d_points_quadrics",
"csga2d_opns",
"qcga3d_points_and_more",
"c2dga_curves",
"game_wedge"];
// Elements.
var els={};
[".hider", "#inspectTable", "#inspectTable2", "#editJSON", "#copyJSON", ".inspect",".help","#stash", "#tab1", "#tab2", "#tab3", "#tab4","#run", "#title", "#titleInput", "#descriptionInput", "#urlInput", "#new","#fork","#save", "#properties", "#sample", ".left",".center",".right","#lgutter","#rgutter"].forEach(x=>els[x.replace(/[.#]/g,'')]=document.querySelector(x));
// Ace editor.
if (window.ace) {
var editor = ace.edit('source');
editor.setTheme("ace/theme/chrome");
editor.session.setMode("ace/mode/javascript");
editor.session.setUseWorker(false);
editor.setHighlightActiveLine(false);
editor.$blockScrolling = Infinity;
editor.session.setOptions({tabSize: 2,useSoftTabs: true});
// Body scroll lock for iOs
// bodyScrollLock.disableBodyScroll();
// Sliders for selected numerical values.
var lock = false, _slider, _color, timeout;
editor.getSession().selection.on('changeSelection', function(e) {
if (lock) return;
// Get the selection plus two extra chars.
var range = editor.getSelectionRange();
range.end.column += 1; range.start.column -= 1;
var t = editor.getSession().getTextRange(range);
// Remove old slider.
if (_slider) {
document.getElementById('source').removeChild(_slider);
_slider = undefined;
}
if (_color) {
document.getElementById('source').removeChild(_color);
_color = undefined;
}
if (range.start.column == range.end.column-2) return;
// If its a hex number, setup the color thingie
var color = t.match(/^[^\d]0x([0-9a-fA-F]+)[^0-9a-fA-F]$/);
if (color) {
_color = document.createElement('input');
Object.assign(_color,{type:'color', value:'#'+color[1]});
var pos = editor.renderer.textToScreenCoordinates(range.start)
Object.assign(_color.style, {position:'fixed', top:pos.pageY-30+'px', left:pos.pageX+5+'px'});
document.getElementById('source').appendChild(_color);
_color.oninput = function(e) {
lock = true;
var range = editor.selection.getRange();
range.end = editor.session.replace(editor.selection.getRange(), '0x'+this.value.slice(1));
editor.selection.setRange(range);
lock = false;
if (timeout) clearTimeout(timeout);
timeout = setTimeout(()=>els.run.click(),1000/60);
}
}
// If its a number, setup the slider.
var number = t.match(/^[^\d\.\-x]([+-]{0,1}\d*\.{0,1}\d*)[^\d\.x]$/);
if (number) {
_slider = document.createElement('input');
Object.assign(_slider,{type:'range',min:-1,max:+1,step:0.01, value:number[1]*1});
var pos = editor.renderer.textToScreenCoordinates(range.start)
Object.assign(_slider.style, {position:'fixed', top:pos.pageY-30+'px', left:pos.pageX+5+'px'});
document.getElementById('source').appendChild(_slider);
_slider.oninput = function(e) {
lock = true;
var range = editor.selection.getRange();
range.end = editor.session.replace(editor.selection.getRange(), this.value+'');
editor.selection.setRange(range);
lock = false;
if (timeout) clearTimeout(timeout);
timeout = setTimeout(()=>els.run.click(),1000/60);
}
}
});
} else { // can't load editor.
Object.assign(els.right.style,{width:0,maxWidth:0,minWidth:0});
}
// copy JSON to clipboard.
els.copyJSON.onclick = e=>{
// see if we have a canvas.
var disp = els.sample.contentDocument.querySelector("svg")||els.sample.contentDocument.querySelector("canvas");
if (!disp || !disp.value) return;
// upgrade the toJSON of the elements we have.
disp.value.some(v=>{
if (v.Wedge) v.constructor.prototype.toJSON = function(){ return [...this]; };
return v.Wedge !== undefined;
});
// next copy the value.
els.editJSON.value = JSON.stringify(disp.value);
els.editJSON.focus(); els.editJSON.select(); document.execCommand("copy"); els.editJSON.blur();
}
// inspect
function inspect(skip) {
var disp = els.sample.contentDocument.querySelector("svg")||els.sample.contentDocument.querySelector("canvas");
if (!disp || !disp.value) { els.inspectTable.innerHTML=''; return; }
var count=1, el;
els.inspectTable.innerHTML = disp.value.map((x,i,a)=>{
while (x && x.call) x=x(); if (!x || !(x.buffer instanceof els.sample.contentWindow.ArrayBuffer)) return "";
var name = typeof a[i+1] == "string" ? a[i+1]:"";
var grade = Math.log2(x.length); if (grade) el=x.constructor;
while (grade && x.Grade(grade).VLength==0) grade--;
return `<TR ID="inspect_${i}"><TD>${count++}<TD>${grade}<TD>${name}<TD>${x.toString().replace(/\.(\d\d)\d*/g,'.$1').replace(/1.00e/g,"e").replace(/e_(\d+)/g,'e<sub>$1</sub>')}`;
}).join('');
if (skip!==true) disp.addEventListener("input",()=>{inspect(true);})
var info = el && el.describe();
els.inspectTable2.innerHTML=!info?"":[...Array(Math.log2(info.basis.length)+2)].map((x,g)=>
`<TR>${info.metric.map((x,i)=> info.basis[i].length!=g?"": "<TD CLASS='"+["min","zer","plu"][x+1]+"'>"+ (i==0?1:"e<SUB>"+info.basis[i].replace("e","")+"</SUB>") +"<SMALL>"+(x==1?"+1":x)+"</SMALL>").join('')}`
).join('');
[...els.inspectTable.querySelectorAll("tr")].forEach(e=>e.onclick=function(){
var elid = this.id.match(/\d+$/g)[0]|0, xx = disp.value[elid]; while(xx.call)xx=xx();
els.inspectTable2.innerHTML=!info?"":[...Array(Math.log2(info.basis.length)+2)].map((x,g)=>
`<TR>${info.metric.map((x,i)=> info.basis[i].length!=g?"": "<TD CLASS='"+["min","zer","plu"][x+1]+"'>"+ (i==0?1:"e<SUB>"+info.basis[i].replace("e","")+"</SUB>") +"<SMALL>"+(x==1?"+1":x)+"</SMALL>").join('')}`+
`<TR>${info.metric.map((x,i)=> info.basis[i].length!=g?"": "<TD cLASS='input'><INPUT ID='in_"+i+"' TYPE='text' vALUE='"+(xx[i]||"")+"'>").join('')}`
).join('');
[...els.inspectTable2.querySelectorAll("input")].forEach(e=>e.onkeyup=function(){
var xx = disp.value[elid]; if (xx.call) return this.style.background="red";
var idx = this.id.match(/\d+$/g)[0];
xx[idx] = 1*this.value;
if (!disp.options.animate && disp.update) disp.update(disp.value);
});
});
}
// tabs.
els.tab1.onclick = (e)=>{
els.tab1.classList.add('active'); els.tab2.classList.remove('active'); els.tab4.classList.remove('active'); els.tab3.classList.remove('active');
els.properties.style.display = "";
els.inspect.style.display = "none";
els.help.style.display = "none";
[...document.querySelectorAll(".group")].forEach(x=>x.style.display="block");
[...document.querySelectorAll(".sampleGroup")].forEach(x=>{
x.style.display="";
if (x.classList.contains('selected')) {
document.querySelector(".group."+x.classList[1]).style.display="block"
}
});
};
els.tab2.onclick = (e)=>{
els.tab2.classList.add('active'); els.tab1.classList.remove('active'); els.tab4.classList.remove('active'); els.tab3.classList.remove('active');
els.properties.style.display = "flex";
els.inspect.style.display = "none";
els.help.style.display = "none";
[...document.querySelectorAll(".group")].forEach(x=>x.style.display="none");
[...document.querySelectorAll(".sampleGroup")].forEach(x=>x.style.display="none");
};
els.tab3.onclick = (e)=>{
els.tab3.classList.add('active'); els.tab1.classList.remove('active'); els.tab2.classList.remove('active'); els.tab4.classList.remove('active');
els.properties.style.display = "none";
els.inspect.style.display = "flex";
els.help.style.display = "none";
[...document.querySelectorAll(".group")].forEach(x=>x.style.display="none");
[...document.querySelectorAll(".sampleGroup")].forEach(x=>x.style.display="none");
inspect();
};
els.tab4.onclick = (e)=>{
els.tab4.classList.add('active'); els.tab1.classList.remove('active'); els.tab2.classList.remove('active'); els.tab3.classList.remove('active');
els.properties.style.display = "none";
els.inspect.style.display = "none";
els.help.style.display = "flex";
[...document.querySelectorAll(".group")].forEach(x=>x.style.display="none");
[...document.querySelectorAll(".sampleGroup")].forEach(x=>x.style.display="none");
inspect();
};
// Generate example cards.
var excards = examples.map(e=>{
var card = Object.assign(document.createElement('div'),{className:'card'});
if (e) card.style.backgroundImage="url('../images/"+e+".jpg')";
card.innerHTML = '<p>'+e.split('_').slice(1).join(' ')+'</p>';
card.onclick = (x)=>{
els.sample.src='example_'+e+'.html';
document.location.hash = e;
els.title.innerText = "The CoffeeShop";
els.titleInput.value = els.descriptionInput.value = "";
els.urlInput.value = document.location;
els.save.classList.remove('active');
}
(document.querySelector('.group.'+e.split('_')[0])||els.left).appendChild(card);
return card;
});
// Generate cards for my stash.
function updateStash() {
var list = JSON.parse(localStorage.ganja||"[]");
while (els.stash.firstChild) els.stash.removeChild(els.stash.firstChild);
list.forEach(e=>{
var card = Object.assign(document.createElement('div'),{className:'card'});
if (e.thumb) card.style.backgroundImage="url('"+e.thumb+"')";
card.innerHTML = '<p>'+e.title+'</p>';
card.onclick = (x)=>{
document.location.hash = e.id;
loadStash(false);
}
var closer = Object.assign(document.createElement('div'),{className:'delete',innerHTML:'⊗'});
closer.onclick = function(){
var list = JSON.parse(localStorage.ganja||"[]").filter(x=>x.id!=e.id);
localStorage.ganja = JSON.stringify(list);
updateStash();
}
card.appendChild(closer);
els.stash.appendChild(card);
els.save.classList.remove('active');
});
};
updateStash();
// Close the introbar
function closeBar() { document.querySelector('.hider').style.height='0px'; postRun(); editor&&editor.resize(); }
// Setup sample group handlers
[...document.querySelectorAll(".sampleGroup")].forEach(s=>{
s.onclick = function(){
[...document.querySelectorAll(".sampleGroup")].forEach(s=>s.classList.remove('selected'));
s.classList.toggle('selected');
[...document.querySelectorAll(".group")].forEach(s=>{
if (s.className.split(' ')[1] != this.className.split(' ')[1]) s.style.display='none';
else s.style.display = 'block';
});
}
});
// Sizeable panes.
els.lgutter.onmousedown = (e)=>{
e.preventDefault(); e.stopPropagation(); els.center.style.pointerEvents = 'none'; els.left.style.overflow = 'hidden';
window.onmousemove = function(e) { els.left.style.width = els.left.style.minWidth = els.left.style.maxWidth = Math.max(0,e.x-2)+"px"; postRun(); };
window.onmouseleave = window.onmouseup = function(e) { els.left.style.overflow=''; els.center.style.pointerEvents = 'all'; window.onmouseleave = window.onmouseup = window.onmousemove = undefined; };
}
els.rgutter.onmousedown = (e)=>{
e.preventDefault(); e.stopPropagation(); els.center.style.pointerEvents = 'none';
window.onmousemove = function(e) { els.right.style.width = els.right.style.minWidth = (window.innerWidth-e.x-2)+"px"; postRun(); };
window.onmouseleave = window.onmouseup = function(e) { els.center.style.pointerEvents = 'all'; window.onmouseleave = window.onmouseup = window.onmousemove = undefined; };
}
els.lgutter.ondblclick = (e)=>{ els.left.style.width = els.left.style.minWidth = els.left.style.maxWidth = els.left.style.width=="0px" ? "":"0px"; postRun(); }
els.rgutter.ondblclick = (e)=>{ els.right.style.width = els.right.style.minWidth = els.right.style.maxWidth = els.right.style.width=="0px" ? "":"0px"; postRun(); }
// Link run handler.
els.run.onclick=(e)=>{
editor.getSession().clearAnnotations();
// var f = els.sample.contentDocument.body.firstChild; while (f && !(f instanceof els.sample.contentWindow.HTMLScriptElement)) f = f.nextElementSibling; f = f&&f.nextElementSibling;
// if (f) while (true) { var g=f.nextSibling; els.sample.contentDocument.body.removeChild(f); if (!g) break; f=g; }
if (window.localStorage) {
var id = document.location.hash.slice(1);
var backups = JSON.parse(localStorage.ganjaBackup||'{}');
var data = editor.getValue();
if(!backups[id] || backups[id][0].data != data){
backups[id] = [{id,data}].concat(backups[id]||[]).slice(0,3);
localStorage.ganjaBackup = JSON.stringify(backups);
}
}
try {
//els.sample.contentWindow.eval( editor.getValue() );
var script = document.createElement("script");
script.type = "module";
script.textContent = 'while(document.body.firstChild) document.body.removeChild(document.body.firstChild);' + editor.getValue() + '\ntop.postRun();';
els.sample.contentDocument.body.appendChild(script);
// setTimeout(()=>postRun(),1); // for fox.
} catch (e) {
var line = e.stack.toString().match(/\, <anonymous>:(\d+)/);
if (line && line[1]) {
line = line[1]|0;
els.sample.contentDocument.body.innerHTML+=`<PRE>${e.message+"\n at line : "+line}</PRE>`;
} else {
els.sample.contentDocument.body.innerHTML+=`<PRE>${e.message+"\n"+e.stack}</PRE>`;
}
}
}
// helper to resize loaded content
function postRun() {
// See if we have a canvas.
var doc = els.sample.contentDocument||document, disp = doc.querySelector("svg")||doc.querySelector("canvas");
if (disp && disp.value) { disp.style.width=disp.style.height='100%'; if (disp.update && (!disp.options || !disp.options.animate)) disp.update(disp.value); }
}
// on iframe load..
els.sample.onload = (e)=>{
// setup iframe props.
els.sample.contentDocument.body.style = "margin:0; padding:0;";
postRun();
els.sample.contentWindow.addEventListener('error', function(e) {
// show error in HTML
els.sample.contentDocument.body.innerHTML+=`<PRE>${e.message}</PRE>`;
// show error in ace editor
var row = e.lineno;
// e.lineno is one off in same cases... fixing that, otherwise it looks strange
// Chrome
if (e.message.includes("Unexpected identifier")) {
row--;
}
// Mozilla
if (e.message.includes("unexpected token: identifier")) {
row--;
}
editor.getSession().setAnnotations([{
row,
column: e.colno,
text: e.message,
type: "error" // or "warning"
}]);
});
// Grab the source and update the editor.
var scr = [...els.sample.contentDocument.querySelectorAll("script")].pop();
if (window.editor && scr) {
editor.setValue(scr.innerText.split('\n').slice(1).reverse().slice(1).reverse().join('\n'));
editor.clearSelection();
// Link shift+enter
editor.commands.addCommand({ name: "run changes", bindKey: {win: "Shift-Enter", mac: "Shift-Enter"}, exec: function(editor) { els.run.click(); } });
// Link editor changes.
editor.session.on('change',e=>{ els.save.style.display="block"; els.save.classList.add("active"); });
els.save.classList.remove('active');
}
}
// Process incoming hash.
var hashurl = document.location.hash.slice(1)||"pga2d_points_and_lines";
document.location.hash = hashurl;
// Propertie handlers
els.titleInput.onkeyup = ()=>document.title = els.title.innerText = els.titleInput.value;
// copy url
els.urlInput.onclick = function(){
console.log('copy ',this.value);
this.select();
document.execCommand("copy");
this.blur();
}
els.urlInput.onkeydown = (e)=>{e.preventDefault(); }; // prevent typing in URL field, keep click event working .. DISABLED wont work ..
// new stash
els.new.onclick = function newStash() {
// Clear the editor, set the source to empty.
editor&&editor.setValue("");
var src = '<HTML><HEAD><TITLE>My Stash</TITLE></HEAD><BODY><SCR'+'IPT SRC="'+document.URL.replace(/\/.[^/]*\/.[^/]*$/,'/ganja.js')+'"></SCR'+'IPT><SC'+'RIPT>\n\n</'+'SCRIPT></BODY></HTML>';
var blob = new Blob([src],{type:"text/html"});
els.sample.src = URL.createObjectURL(blob);
// Remove the samples, show the properties.
els.tab2.click();
// If still in intro, close the bar.
closeBar();
// Now save an empty version and set the url.
var data = "";
var title = "untitled";
var packet = {title,data};
fetch("https://ganja.enki.ws",{method:'post',body:JSON.stringify(packet)})
.then(resp=>resp.json())
.then(resp=>{
// Update hash and url input
document.location.hash=resp.id;
els.urlInput.value=document.location;
// Save in localstorage.
if (window.localStorage) {
localStorage.ganja = JSON.stringify(JSON.parse(localStorage.ganja||'[]').concat([{title,id:resp.id,secret:resp.secret}]));
};
els.save.style.display="block";
els.save.classList.remove('active');
updateStash();
})
};
// Utility : create thumbnail.
function createThumb(complete) {
// See if we have an SVG or CANVAS
var c = Object.assign(document.createElement('canvas'),{width:160,height:120}), ctx = c.getContext('2d');
var disp = els.sample.contentDocument.querySelector("canvas");
// if its a canvas, rescale and return base64 of jpg.
if (disp) {
var img = new Image();
img.src = disp.toDataURL('image/jpeg',1.0);
img.onload = function() {
ctx.drawImage(img,0,0,160,120);
return complete(c.toDataURL('image/jpeg',0.8));
}
return;
}
// else it's an SVG. render to canvas and return base64 of jpg.
var disp = els.sample.contentDocument.querySelector("svg");
if (!disp) return complete();
var copy = disp.cloneNode(true);
var data = (new XMLSerializer()).serializeToString(copy);
var DOMURL = window.URL || window.webkitURL || window;
var img = new Image();
var svgBlob = new Blob([data], {type: "image/svg+xml;charset=utf-8"});
var url = DOMURL.createObjectURL(svgBlob);
img.src = url;
img.onload = function () {
ctx.drawImage(img, 0, 0,160,120);
return complete(c.toDataURL('image/jpeg',0.8));
};
}
// save stash
els.save.onclick = function saveStash() {
els.save.classList.remove('active');
// create thumbnail, then save ..
createThumb((thumb)=>{
// save ..
var id = document.location.hash.slice(1);
var list = JSON.parse(localStorage.ganja||"[]");
var item = list.filter(x=>{ if (x.id==id) { x.thumb=thumb; x.title=els.titleInput.value||"untitled"; x.description=els.descriptionInput.value; return true; } return false; });
//if (item.length==0) return console.warn("saving disabled - not your stash ?");
localStorage.ganja = JSON.stringify(list);
updateStash();
var packet = { data : editor.getValue(), title:els.titleInput.value||"untitled", description:els.descriptionInput.value, secret:item[0]&&item[0].secret, id : id, thumb: thumb };
fetch("https://ganja.enki.ws",{method:'post',body:JSON.stringify(packet)})
.then(resp=>resp.json())
.then(resp=>{
console.log(JSON.stringify(resp));
if (item.length==0) { // we didn't have it .. so we forked it ..
var n = { id : resp.id, secret : resp.secret, thumb : thumb, title:els.titleInput.value||"untitled", description:els.descriptionInput.value };
list.push(n);
localStorage.ganja = JSON.stringify(list);
updateStash();
document.location.hash = resp.id;
els.tab2.click();
}
})
});
}
// warn before exit
window.onbeforeunload = (e)=>{
if(!els.save.classList.contains('active')) return;
e.preventDefault(); // firefox
e.returnValue = ''; // chrome
};
// load custom stash
function loadStash(closeAll){
var stashURL = document.location.hash.slice(1).split('&');
fetch("https://ganja.enki.ws/"+stashURL[0]).then(x=>x.json()).then(data=>{
var src = '<HTML><HEAD><TITLE>'+data.title+'</TITLE><STYLE>body {width:100%; height:100%; margin:0; }</STYLE></HEAD><BODY><SCR'+'IPT SRC="'+document.URL.replace(/\/.[^/]*\/.[^/]*$/,'/ganja.js')+'"></SCR'+'IPT><SC'+'RIPT>try{\n'+data.data+'\n; disp=document.querySelector("svg")||document.querySelector("canvas"); if (disp && disp.value) { disp.style.width=disp.style.height="100%"; if (disp.update && (!disp.options || !disp.options.animate)) disp.update(disp.value); } } catch(e) { document.body.innerHTML+="<PRE>"+e+"</PRE>"; }</'+'SCRIPT></BODY></HTML>';
document.body.style.display='flex';
// if full-screen, overload everything ..
if (stashURL.find(x=>x.match(/fullscreen/i))) return document.clear(),document.write(src),document.close();
// else put it in the iframe.
var blob = new Blob([src],{type:"text/html"});
var url = URL.createObjectURL(blob);
els.sample.src = url;
els.hider.style.height=0;
if (closeAll!==false) els.left.style.with=els.left.style.minWidth=els.left.style.maxWidth=0;
// Set properties.
els.title.innerText=els.titleInput.value=data.title;
els.descriptionInput.value=data.description||"";
els.urlInput.value=document.location;
// Remove the samples, show the properties.
els.properties.style.display = "flex";
[...document.querySelectorAll(".group")].forEach(x=>x.style.display="none");
[...document.querySelectorAll(".sampleGroup")].forEach(x=>x.style.display="none");
// If still in intro, close the bar.
if (closeAll!==false) closeBar();
// If its ours, we can save it..
var id = document.location.hash.slice(1), mine = JSON.parse(localStorage.ganja||"[]").filter(x=>x.id==id).length;
if (mine) els.save.style.display="block";
els.tab2.click();
});
}
// Premade examples.
if (~examples.indexOf(hashurl.split('&')[0])) {
els.sample.src = 'example_'+hashurl.split('&')[0]+'.html';
els.tab1.click();
document.body.style.display='flex';
if (hashurl.split('&')[1] == 'fullscreen') {
els.left.style.with=els.left.style.minWidth=els.left.style.maxWidth=0;
els.right.style.width = els.right.style.minWidth = els.right.style.maxWidth = 0;
[...document.querySelectorAll(".group")].forEach(x=>x.style.display="none");
[...document.querySelectorAll(".sampleGroup")].forEach(x=>x.style.display="none");
closeBar();
}
}
// User shared.
else loadStash();
// image options
function saveImage() {
var imgC = els.sample.contentDocument.querySelector('canvas');
var imgS = els.sample.contentDocument.querySelector('svg');
if (imgS) {
imgS.style.width = (widthInput.value|0)||'100%';
imgS.style.height = (heightInput.value|0)||'100%';
var a = Object.assign(els.sample.contentDocument.createElement('a'),{
download:"image.svg",
href: 'data:image/svg+xml;utf8,' + new XMLSerializer()
.serializeToString(imgS)
.replace(/ +\/\/.*?\n/g,'')
.replace(/onmousedown=".*?"/g,'')
.replace(/#/g,'%23')
});
els.sample.contentDocument.body.appendChild(a).click(); els.sample.contentDocument.body.removeChild(a);
imgS.style.width = '100%';
imgS.style.height = '100%';
}
if (imgC) {
imgC.width = imgC.style.width = (widthInput.value|0)||'100%';
imgC.height = imgC.style.height = (heightInput.value|0)||'100%';
imgC.update(imgC.value);
var a = Object.assign(els.sample.contentDocument.createElement('a'),{
download:"image.png",
href: imgC.toDataURL('image/png',1.0)
});
els.sample.contentDocument.body.appendChild(a).click(); els.sample.contentDocument.body.removeChild(a);
imgC.style.width = '100%';
imgC.style.height = '100%';
}
}
</SCRIPT>
</BODY>