<!DOCTYPE html>
<html lang="it">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<title>ACE HTML Editor con Bootstrap - Anteprima in Tab</title>
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/css/bootstrap.min.css" rel="stylesheet">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/ace/1.32.0/ace.js"></script>
<style>
html, body { height: 100%; margin: 0; overflow: hidden; }
#editor-container, #preview-container {
height: calc(100vh - 140px); /* top bar (50) + tabs (40) + bottom bar (50) */
overflow: hidden;
}
#editor {
width: 100%;
height: 93%;
padding-bottom: 60px; /* prevent bottom overlap */
}
iframe {
width: 100%;
height: 100%;
border: none;
padding-bottom: 60px; /* avoid bottom toolbar overlap */
}
.toolbar-fixed { height: 60px; background:#f8f9fa; border-bottom:1px solid #ddd; display:flex; align-items:center; padding:0 10px; }
#toolbar-top .btn { padding: 2px 8px; font-size: 0.8rem; line-height: 1.8; }
</style>
</head>
<body>
<!-- TOOLBAR SUPERIORE -->
<div id="toolbar-top" class="toolbar-fixed">
<div class="btn-group" role="group">
<button id="btnContainer" type="button" class="btn btn-danger">
<i class="fa fa-box"></i> Container
</button>
<button id="btnRow" type="button" class="btn btn-warning">
<i class="fa fa-bars"></i> Row
</button>
<button id="btnCol" type="button" class="btn btn-success">
<i class="fa fa-square"></i> Col
</button>
</div>
</div>
<!-- TABS -->
<ul class="nav nav-tabs" id="mainTabs" style="margin-top:10px;">
<li class="nav-item">
<a class="nav-link active" data-bs-toggle="tab" href="#tab-editor">Editor</a>
</li>
<li class="nav-item">
<a class="nav-link" data-bs-toggle="tab" href="#tab-preview" id="preview-tab-btn">Anteprima</a>
</li>
</ul>
<!-- TAB CONTENT -->
<div class="tab-content">
<div class="tab-pane fade show active" id="tab-editor">
<div id="editor-container"><div id="editor"></div></div>
</div>
<div class="tab-pane fade" id="tab-preview">
<div id="preview-container"><iframe id="previewFrame"></iframe></div>
</div>
</div>
<!-- TOOLBAR INFERIORE -->
<div id="toolbar-bottom" class="toolbar-fixed" style="position:fixed; bottom:0; width:100%; border-top:1px solid #ddd;">
<!--
<button id="btn-open-bottom" class="btn btn-light me-2" title="Apri"><i class="fa fa-folder-open"></i></button>
<button id="btn-save-bottom" class="btn btn-light me-2" title="Salva"><i class="fa fa-save"></i></button>
<button id="btn-undo-bottom" class="btn btn-light me-2" title="Undo"><i class="fa fa-undo"></i></button>
<button id="btn-redo-bottom" class="btn btn-light me-2" title="Redo"><i class="fa fa-redo"></i></button>
-->
<button id="btn-preview-bottom" class="btn btn-primary me-2" title="Anteprima"><i class="fa fa-eye"></i></button>
<button id="btnUndo" href="#" class="btn btn-warning me-2">
<i class="fa fa-undo" aria-hidden="true"></i>
</button>
<button href="#" id="btnBlock" class="btn btn-info me-2">
<i class="fa fa-page"></i> Block
</button>
<button href="#" id="btnVariable" class="btn btn-primary">
<span class="glyphicon glyphicon-bookmark"></span> Variable
</button>
<input id="elementName" type="text" class="form-control ms-3" placeholder="Block or Variable name"
style="width:250px;"/>
<form id="formtemplate" name="formtemplate" class="form-inline" style="display: flex; justify-content: flex-end" role="form" method="post" action="skeleton_builder">
<button href="skeleton_builder" id="btnSave" class="btn btn-success">
<i class="fa fa-check-circle" aria-hidden="true"></i> Save template
</button>
<textarea name="design" id="design" style="display:none;"></textarea>
<a href="skeleton_builder?ResetDesign" onclick="return confirm('Are you sure to exit without saving?')" class="btn btn-danger">
<i class="fa fa-times-circle" aria-hidden="true"></i> Exit
</a>
</form>
</div>
<script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/js/bootstrap.bundle.min.js"></script>
<script>
var editor = ace.edit("editor");
editor.setTheme("ace/theme/monokai");
editor.session.setMode("ace/mode/html");
let html= `{EditorDefaultHTML}`;
editor.setValue(html);
editor.clearSelection();
// Funzione di rendering anteprima
function renderPreview() {
let html = editor.getValue();
let iframeDoc = document.getElementById("previewFrame").contentWindow.document;
iframeDoc.open();
iframeDoc.write(html);
iframeDoc.close();
}
// Preview button
$("#btn-preview-bottom").on("click", function() {
renderPreview();
new bootstrap.Tab($("a[href='#tab-preview']")[0]).show();
});
// Tab button -> update preview
$("#preview-tab-btn").on("shown.bs.tab", function () {
renderPreview();
});
// Helper function
function insertAtCursor(text) {
editor.session.insert(editor.getCursorPosition(), text);
}
// BS Container button/
$("#btnContainer").on("click", function () {
insertAtCursor(`<div class="container">\n \n</div>\n`);
});
// BS Row button
$("#btnRow").on("click", function () {
insertAtCursor(`<div class="row">\n \n</div>\n`);
});
// BS Col button
$("#btnCol").on("click", function () {
insertAtCursor(`<div class="col">/div>\n`);
});
// Framework Block button
$('#btnBlock').click(function(){
var selectedHTML = editor.session.getTextRange(editor.getSelectionRange());
var blockName = $("#elementName").val();
if (blockName == "")
blockName = "PUT_YOUR_BLOCK_NAME_HERE";
var beginBlockSection = "\t<!-- BEGIN " + blockName + " -->\n";
var endBlockSection = "\n\t<!-- END " + blockName + " -->";
editor.insert(beginBlockSection + selectedHTML + endBlockSection);
});
// Framework Variable button
$('#btnVariable').click(function(){
var variableName = $("#elementName").val();
if (variableName == "")
variableName = "VariableName";
var variableHTML = "{" + variableName + "}";
editor.insert(variableHTML);
});
// Undo button
$('#btnUndo').click(function(){
editor.undo();
});
// Form submission
$( "#formtemplate" ).submit(function( event ) {
// event.preventDefault();
var htmlDesign = editor.getValue();
$('#design').val(htmlDesign);
});
</script>
</body>
</html>
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