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index.html
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<!DOCTYPE html>
<html manifest="editor.appcache">
<head>
<title>html editor</title>
<link rel="stylesheet" href="js/codemirror/codemirror.css">
<script src="js/codemirror/codemirror.js"></script>
<script src="js/codemirror/mode/xml.js"></script>
<script src="js/codemirror/mode/javascript.js"></script>
<script src="js/codemirror/mode/css.js"></script>
<script src="js/codemirror/mode/htmlmixed.js"></script>
<script src="js/rawinflate.js"></script>
<script src="js/rawdeflate.js"></script>
<script src="js/esprima.js"></script>
<style>
html, body {
height: 100%;
}
body {
margin: 0px;
overflow: hidden;
font-family: Arial;
}
a {
color: #ffffff;
}
h1 {
font-size: 20px;
margin-top: 0px;
}
.button {
font-size: 10px;
text-transform: uppercase;
text-decoration: none;
color: rgb(80,80,80);
border: transparent;
background-color: rgb(235,235,235);
margin: 2px;
padding: 8px 10px;
cursor: pointer;
}
.button:hover {
color: rgb(235,235,235);
background-color: rgb(80,80,80);
}
.button path {
stroke: rgb(80,80,80);
}
.button:hover path {
stroke: rgb(235,235,235);
}
#preview {
position: absolute;
left: 0px;
top: 0px;
width: 100%;
height: 100%;
}
#editor {
position: absolute;
width: 100%;
height: 100%;
}
#editor .CodeMirror {
height: 100%;
font-size: 14px;
background-color: rgba(255,255,255,0.85);
}
#editor .CodeMirror-scroll {
height: 100%;
}
#editor .CodeMirror div.CodeMirror-selected {
background: rgba(0,0,0,0.1);
}
#editor .CodeMirror-focused div.CodeMirror-selected {
background: rgba(0,0,255,0.1);
}
#editor .CodeMirror .errorLine {
background: rgba(255,0,0,0.25);
}
#editor .CodeMirror .esprima-error {
color: #f00;
text-align: right;
padding: 0px 20px;
}
#toolbar {
position: absolute;
top: 15px;
right: 30px;
text-align: right;
z-index: 10; /* CodeMirror sets z-index */
}
#popup {
position: absolute;
color: rgb(235,235,235);
padding: 20px 20px 20px 20px;
background-color: rgb(80,80,80);
z-index: 20; /* CodeMirror sets z-index */
}
</style>
</head>
<body>
<div id="preview"></div>
<div id="editor"></div>
<div id="toolbar"></div>
<div id="popup"></div>
<script>
window.URL = window.URL || window.webkitURL;
// deflate
function decode( string ) {
return RawDeflate.inflate( window.atob( string ) );
}
function encode( string ) {
return window.btoa( RawDeflate.deflate( string ) );
}
//
var defaultCode = decode( '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' );
var documents = [ { filename: 'Untitled', filetype: 'text/plain', autoupdate: true, code: defaultCode } ];
if ( localStorage.codeeditor !== undefined ) {
documents = JSON.parse( localStorage.codeeditor );
}
if ( window.location.hash ) {
var hash = window.location.hash.substr( 1 );
var version = hash.substr( 0, 2 );
if ( version == 'A/' ) {
alert( 'That shared link format is no longer supported.' );
} else if ( version == 'B/' ) {
documents[ 0 ].code = decode( hash.substr( 2 ) );
}
}
// preview
var preview = document.getElementById( 'preview' );
// editor
var interval;
var editor = document.getElementById( 'editor' );
var codemirror = CodeMirror( editor, {
value: documents[ 0 ].code,
mode: 'text/html',
lineNumbers: true,
matchBrackets: true,
indentWithTabs: true,
tabSize: 4,
indentUnit: 4
} );
codemirror.on( 'change', function() {
buttonSave.style.display = '';
buttonDownload.style.display = 'none';
if ( documents[ 0 ].autoupdate === false ) return;
clearTimeout( interval );
interval = setTimeout( update, 500 );
} );
// toolbar
var toolbar = document.getElementById( 'toolbar' );
var buttonUpdate = document.createElement( 'button' );
buttonUpdate.className = 'button';
var checkbox = document.createElement( 'input' );
checkbox.type = 'checkbox';
if ( documents[ 0 ].autoupdate === true ) checkbox.checked = true;
checkbox.style.margin = '-4px 4px -4px 0px';
checkbox.addEventListener( 'click', function ( event ) {
event.stopPropagation();
documents[ 0 ].autoupdate = documents[ 0 ].autoupdate === false;
localStorage.codeeditor = JSON.stringify( documents );
}, false );
buttonUpdate.appendChild( checkbox );
buttonUpdate.appendChild( document.createTextNode( 'update' ) );
buttonUpdate.addEventListener( 'click', function ( event ) {
update();
}, false );
toolbar.appendChild( buttonUpdate );
var buttonHide = document.createElement( 'button' );
buttonHide.className = 'button';
buttonHide.textContent = 'hide code';
buttonHide.addEventListener( 'click', function ( event ) {
toggle();
}, false );
toolbar.appendChild( buttonHide );
var buttonMenu = document.createElement( 'button' );
buttonMenu.className = 'button';
buttonMenu.innerHTML = '<svg width="8" height="8"><path d="M 0,1.5 8,1.5 M 0,4.5 8,4.5 M 0,7.5 8,7.5"></svg>';
buttonMenu.addEventListener( 'click', function ( event ) {
menu.style.display = menu.style.display === '' ? 'none' : '';
}, false );
toolbar.appendChild( buttonMenu );
toolbar.appendChild( document.createElement( 'br' ) );
var menu = document.createElement( 'span' );
menu.style.display = 'none';
toolbar.appendChild( menu );
var buttonSave = document.createElement( 'button' );
buttonSave.className = 'button';
buttonSave.textContent = 'save';
buttonSave.addEventListener( 'click', function ( event ) {
save();
}, false );
menu.appendChild( buttonSave );
var buttonDownload = document.createElement( 'a' );
buttonDownload.className = 'button';
buttonDownload.style.display = 'none';
buttonDownload.download = 'index.html';
buttonDownload.textContent = 'download';
menu.appendChild( buttonDownload );
var buttonShare = document.createElement( 'button' );
buttonShare.className = 'button';
buttonShare.textContent = 'share';
buttonShare.addEventListener( 'click', function ( event ) {
var dom = document.createElement( 'input' );
dom.value = 'http://mrdoob.com/projects/htmleditor/#B/' + encode( codemirror.getValue() );
dom.style.width = '400px';
dom.style.padding = '5px';
dom.style.marginTop = '20px';
dom.style.border = '0px';
popup.set( dom );
popup.show();
dom.focus();
dom.select();
}, false );
menu.appendChild( buttonShare );
var buttonReset = document.createElement( 'button' );
buttonReset.className = 'button';
buttonReset.textContent = 'reset';
buttonReset.addEventListener( 'click', function ( event ) {
if ( confirm( 'Are you sure?' ) === true ) {
codemirror.setValue( defaultCode );
save();
}
}, false );
menu.appendChild( buttonReset );
var buttonAbout = document.createElement( 'button' );
buttonAbout.className = 'button';
buttonAbout.textContent = 'about';
buttonAbout.addEventListener( 'click', function ( event ) {
var dom = document.createElement( 'div' );
dom.style.width = '400px';
dom.style.padding = '5px';
dom.style.border = '0px';
dom.style.textAlign = 'center';
dom.innerHTML = '<h1>HTML EDITOR<\/h1><a href="https://github.com/mrdoob/htmleditor" target="_blank">Source code</a>.<br>Powered by <a href="http://codemirror.net/" target="_blank">CodeMirror ' + CodeMirror.version + '</a> and <a href="http://esprima.org/" target="_blank">Esprima ' + esprima.version + '</a>.';
popup.set( dom );
popup.show();
}, false );
menu.appendChild( buttonAbout );
// popup
var popup = ( function () {
var scope = this;
var element = document.getElementById( 'popup' );
element.style.display = 'none';
var buttonClose = ( function () {
var svg = document.createElementNS( 'http://www.w3.org/2000/svg', 'svg' );
svg.setAttribute( 'width', 32 );
svg.setAttribute( 'height', 32 );
var path = document.createElementNS( 'http://www.w3.org/2000/svg', 'path' );
path.setAttribute( 'd', 'M 9,12 L 11,10 L 15,14 L 19,10 L 21,12 L 17,16 L 21,20 L 19,22 L 15,18 L 11,22 L 9,20 L 13,16' );
path.setAttribute( 'fill', 'rgb(235,235,235)' );
svg.appendChild( path );
return svg;
} )();
buttonClose.style.position = 'absolute';
buttonClose.style.top = '5px';
buttonClose.style.right = '5px';
buttonClose.style.cursor = 'pointer';
buttonClose.addEventListener( 'click', function ( event ) {
scope.hide();
}, false );
element.appendChild( buttonClose );
var content = document.createElement( 'div' );
element.appendChild( content );
function update() {
element.style.left = ( ( window.innerWidth - element.offsetWidth ) / 2 ) + 'px';
element.style.top = ( ( window.innerHeight - element.offsetHeight ) / 2 ) + 'px';
}
window.addEventListener( 'load', update, false );
window.addEventListener( 'resize', update, false );
//
this.show = function () {
element.style.display = '';
update();
};
this.hide = function () {
element.style.display = 'none';
};
this.set = function ( value ) {
while ( content.children.length > 0 ) {
content.removeChild( content.firstChild );
}
content.appendChild( value );
};
return this;
} )();
// events
document.addEventListener( 'drop', function ( event ) {
event.preventDefault();
event.stopPropagation();
var file = event.dataTransfer.files[ 0 ];
documents[ 0 ].filename = file.name;
documents[ 0 ].filetype = file.type;
var reader = new FileReader();
reader.onload = function ( event ) {
codemirror.setValue( event.target.result );
};
reader.readAsText( file );
}, false );
document.addEventListener( 'keydown', function ( event ) {
if ( event.keyCode === 83 && ( event.ctrlKey === true || event.metaKey === true ) ) {
event.preventDefault();
save();
}
if ( event.keyCode === 13 && ( event.ctrlKey === true || event.metaKey === true ) ) {
update();
}
if ( event.keyCode === 27 ) {
toggle();
}
}, false );
// actions
function update() {
var value = codemirror.getValue();
if ( validate( value ) ) {
// remove previous iframe
if ( preview.children.length > 0 ) {
preview.removeChild( preview.firstChild );
}
//
var iframe = document.createElement( 'iframe' );
iframe.style.width = '100%';
iframe.style.height = '100%';
iframe.style.border = '0';
preview.appendChild( iframe );
var content = iframe.contentDocument || iframe.contentWindow.document;
// workaround for chrome bug
// http://code.google.com/p/chromium/issues/detail?id=35980#c12
value = value.replace( '<script>', '<script>if ( window.innerWidth === 0 ) { window.innerWidth = parent.innerWidth; window.innerHeight = parent.innerHeight; }' );
content.open();
content.write( value );
content.close();
}
}
var errorLines = [];
var widgets = [];
function validate( value ) {
return codemirror.operation( function () {
while ( errorLines.length > 0 ) {
codemirror.removeLineClass( errorLines.shift(), 'background', 'errorLine' );
}
for ( var i = 0; i < widgets.length; i ++ ) {
codemirror.removeLineWidget( widgets[ i ] );
}
widgets.length = 0;
// remove html
var string = '\n';
var lines = value.split( '\n' );
var lineCurrent = 0, lineTotal = lines.length;
while ( lineCurrent < lineTotal && lines[ lineCurrent ].indexOf( '<script>' ) === -1 ) {
string += '\n';
lineCurrent ++;
}
var lineStart = lineCurrent ++;
while ( lineCurrent < lineTotal && lines[ lineCurrent ].indexOf( '<\/script>' ) === -1 ) {
string += lines[ lineCurrent ] + '\n';
lineCurrent ++;
}
//
try {
var result = esprima.parse( string, { tolerant: true } ).errors;
for ( var i = 0; i < result.length; i ++ ) {
var error = result[ i ];
var message = document.createElement( 'div' );
message.className = 'esprima-error';
message.textContent = error.message.replace(/Line [0-9]+: /, '');
var lineNumber = error.lineNumber - 1;
errorLines.push( lineNumber );
codemirror.addLineClass( lineNumber, 'background', 'errorLine' );
var widget = codemirror.addLineWidget(
lineNumber,
message
);
widgets.push( widget );
}
} catch ( error ) {
var message = document.createElement( 'div' );
message.className = 'esprima-error';
message.textContent = error.message.replace(/Line [0-9]+: /, '');
var lineNumber = error.lineNumber - 1;
errorLines.push( lineNumber );
codemirror.addLineClass( lineNumber, 'background', 'errorLine' );
var widget = codemirror.addLineWidget(
lineNumber,
message
);
widgets.push( widget );
}
return errorLines.length === 0;
});
}
function save() {
documents[ 0 ].code = codemirror.getValue();
localStorage.codeeditor = JSON.stringify( documents );
var blob = new Blob( [ codemirror.getValue() ], { type: documents[ 0 ].filetype } );
var objectURL = URL.createObjectURL( blob );
buttonDownload.href = objectURL;
var date = new Date();
buttonDownload.download = documents[ 0 ].filename;
buttonSave.style.display = 'none';
buttonDownload.style.display = '';
}
function toggle() {
if ( editor.style.display === '' ) {
buttonHide.textContent = 'show code';
editor.style.display = 'none';
buttonUpdate.style.display = 'none';
buttonShare.display = 'none';
} else {
buttonHide.textContent = 'hide code';
editor.style.display = '';
buttonUpdate.style.display = '';
buttonShare.display = '';
}
}
update();
</script>
</body>
</html>