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editor.js
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editor.js
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var URL = window.URL || window.webkitURL || window.mozURL || window.msURL;
navigator.saveBlob = navigator.saveBlob || navigator.msSaveBlob || navigator.mozSaveBlob || navigator.webkitSaveBlob;
window.saveAs = window.saveAs || window.webkitSaveAs || window.mozSaveAs || window.msSaveAs;
// Because highlight.js is a bit awkward at times
var languageOverrides = {
js: 'javascript',
html: 'xml'
};
emojify.setConfig({ img_dir: 'emoji' });
var md = markdownit({
html: true,
highlight: function(code, lang){
if(languageOverrides[lang]) lang = languageOverrides[lang];
if(lang && hljs.getLanguage(lang)){
try {
return hljs.highlight(lang, code).value;
}catch(e){}
}
return '';
}
})
.use(markdownitFootnote);
var hashto;
var inElem = document.getElementById("in");
function update(e){
setOutput(e.getValue());
// clearTimeout(hashto);
// hashto = setTimeout(updateHash, 1000);
}
function setOutput(val){
val = val.replace(/<equation>((.*?\n)*?.*?)<\/equation>/ig, function(a, b){
return '<img src="http://latex.codecogs.com/png.latex?' + encodeURIComponent(b) + '" />';
});
var out = document.getElementById('out');
var old = out.cloneNode(true);
out.innerHTML = md.render(val);
emojify.run(out);
var allold = old.getElementsByTagName("*");
if (allold === undefined) return;
var allnew = out.getElementsByTagName("*");
if (allnew === undefined) return;
for (var i = 0, max = Math.min(allold.length, allnew.length); i < max; i++) {
if (!allold[i].isEqualNode(allnew[i])) {
out.scrollTop = allnew[i].offsetTop;
return;
}
}
inElem.style.height = inElem.innerText.split('\n').length * window.getComputedStyle(inElem).getPropertyValue("line-height").replace('px', '')*1.5 + 50 +'px';
}
var editor = CodeMirror.fromTextArea(document.getElementById('code'), {
mode: 'gfm',
lineNumbers: false,
matchBrackets: true,
lineWrapping: true,
theme: 'base16-light',
extraKeys: {"Enter": "newlineAndIndentContinueMarkdownList"}
});
editor.on('change', update);
document.addEventListener('drop', function(e){
e.preventDefault();
e.stopPropagation();
var reader = new FileReader();
reader.onload = function(e){
editor.setValue(e.target.result);
};
reader.readAsText(e.dataTransfer.files[0]);
}, false);
function saveAsMarkdown(){
var filename = document.getElementById("blogTitle").value;
if (filename.length === 0)
filename = "untitled";
filename += '.md';
save(editor.getValue(), filename);
}
function saveAsHtml() {
var filename = document.getElementById("blogTitle").value;
if (filename.length === 0)
filename = "untitled";
filename += '.md';
save(document.getElementById('out').innerHTML, filename);
}
/* document.getElementById('saveBtn').addEventListener('click', function() {
* console.log("click made");
* saveAsMarkdown();
* hideMenu();
* });
*/
function save(code, name){
var blob = new Blob([code], { type: 'text/plain' });
if(window.saveAs){
window.saveAs(blob, name);
}else if(navigator.saveBlob){
navigator.saveBlob(blob, name);
}else{
url = URL.createObjectURL(blob);
var link = document.createElement("a");
link.setAttribute("href",url);
link.setAttribute("download",name);
var event = document.createEvent('MouseEvents');
event.initMouseEvent('click', true, true, window, 1, 0, 0, 0, 0, false, false, false, false, 0, null);
link.dispatchEvent(event);
}
}
document.addEventListener('keydown', function(e){
if(e.keyCode == 83 && (e.ctrlKey || e.metaKey)){
e.shiftKey ? showMenu() : saveAsMarkdown();
e.preventDefault();
return false;
}
if(e.keyCode === 27){
hideMenu();
e.preventDefault();
return false;
}
});
function updateHash(){
window.location.hash = btoa( // base64 so url-safe
RawDeflate.deflate( // gzip
unescape(encodeURIComponent( // convert to utf8
editor.getValue()
))
)
);
}
if(window.location.hash){
var h = window.location.hash.replace(/^#/, '');
if(h.slice(0,5) == 'view:'){
setOutput(decodeURIComponent(escape(RawDeflate.inflate(atob(h.slice(5))))));
document.body.className = 'view';
}else{
editor.setValue(
decodeURIComponent(escape(
RawDeflate.inflate(
atob(
h
)
)
))
);
update(editor);
editor.focus();
}
}else{
update(editor);
editor.focus();
}
// below two functions about xhr are not used as of now
// Create the XHR object.
function createCORSRequest(method, url) {
var xhr = new XMLHttpRequest();
if ("withCredentials" in xhr) {
// XHR for Chrome/Firefox/Opera/Safari.
xhr.open(method, url, true);
} else if (typeof XDomainRequest != "undefined") {
// XDomainRequest for IE.
xhr = new XDomainRequest();
xhr.open(method, url);
} else {
// CORS not supported.
xhr = null;
}
return xhr;
}
// Make the actual CORS request.
// https://www.html5rocks.com/en/tutorials/cors/
function makeCorsRequest() {
// This is a sample server that supports CORS.
var url = "someurlfromgeekhaven.iiita.ac.in/whatever.php";
var data = new FormData();
var title = document.getElementById("blogTitle").value;
var fileName = title + ".md";
data.append('attachment', editor.getValue(), fileName);
var xhr = createCORSRequest('POST', url);
if (!xhr) {
alert('CORS not supported');
return;
}
// Response handlers.
xhr.onload = function() {
var json = xhr.responseJson;
if (json.ok)
alert("cors successfully done");
else
alert("cors failed");
};
xhr.onerror = function() {
alert('Woops, there was an error making the request.');
};
xhr.send(data);
}
function getCategories() {
$.get("https://api.github.com/repos/nybles/nybles.github.io/content/category",
function (data) {
var categoryList = [];
for (var cat in data)
categoryList.push(cat.name);
},
"json");
}
window.onload = function() {
// document.getElementById('submitBtn').onclick = makeCorsRequest;
document.getElementById("saveBtn").onclick = saveAsMarkdown;
var inElem = document.getElementById("in");
var outElem = document.getElementById("out");
var intoggle = document.getElementById("toggleEditorBtn");
var outtoggle = document.getElementById("togglePreviewBtn");
function toggleView(showIn, showOut) {
if (showIn && showOut) {
console.log("case 1");
inElem.style.display = outElem.style.display = "block";
inElem.style.width = outElem.style.width = "50%";
} else if (showIn && !showOut) {
console.log("case 2");
inElem.style.display = "block";
outElem.style.display = "none";
inElem.style.width = "100%";
outElem.style.width = "0";
} else if (!showIn && showOut) {
console.log("case 3");
inElem.style.display = "none";
outElem.style.display = "block";
inElem.style.width = "0%";
outElem.style.width = "100%";
} else if (!showIn && !showOut) {
console.log("case 4");
inElem.style.display = "none";
outElem.style.display = "none";
} else {
console.log("WTF");
}
}
intoggle.addEventListener("click", function() {
toggleView(intoggle.checked, outtoggle.checked);
});
outtoggle.addEventListener("click", function() {
toggleView(intoggle.checked, outtoggle.checked);
});
inElem.style.height = document.getElementById('code').innerText.split('\n').length * window.getComputedStyle(inElem).getPropertyValue("line-height").replace('px', '')*1.5 + 50 +'px';
};