回调可编辑iframe更改为Codemirror [英] Call Back Editable IFrames Changes into Codemirror
问题描述
http://jsbin.com/aNirEnUB/3/edit
我一直在尝试 Codemirror ，今天我决定制作iframe是可编辑的，但是还没有找到一种方法来通过更改来回调我对iframe所做的更改，并将这些更改直接应用于Codemirror.
I've been experimenting with Codemirror for a bit, and today I decided to make the iframe editable, but haven't figured out a way to call back the changes I make to the iframe via change and apply those changes directly to Codemirror.
这可能吗?
JavaScript/JQuery :
var delay;
// Initialize CodeMirror editor
var editor = CodeMirror.fromTextArea(document.getElementById('code'), {
mode: 'text/html',
tabMode: 'indent',
styleActiveLine: true,
lineNumbers: true,
lineWrapping: true,
autoCloseTags: true
});
// Live preview
editor.on("change", function() {
clearTimeout(delay);
delay = setTimeout(updatePreview, 300);
});
function updatePreview() {
var previewFrame = document.getElementById('preview');
var preview = previewFrame.contentDocument || previewFrame.contentWindow.document;
preview.open();
preview.write(editor.getValue());
preview.close();
}
setTimeout(updatePreview, 300);
// Make the preview editable
window.onload = function() {
preview.document.designMode = 'On';
};
// Update the Editor Code from Preview Edit
preview.on('change', function() {
clearTimeout(delay);
delay = setTimeout(updateEditor, 300);
});
function updateEditor() {
var previewFrame = document.getElementById('preview');
var preview = previewFrame.contentDocument || previewFrame.contentWindow.document;
preview.open();
editor.setValue(preview.body.innerHTML());
preview.close();
}
setTimeout(updateEditor, 300);
HTML :
<textarea id="code" name="code"><!doctype html>
<html>
<head>
<meta charset=utf-8>
<title>HTML5 canvas demo</title>
<style>p {font-family: monospace;}</style>
</head>
<body>
<p>Canvas pane goes here:</p>
<canvas id=pane width=300 height=200></canvas>
<script>
var canvas = document.getElementById('pane');
var context = canvas.getContext('2d');
context.fillStyle = 'rgb(250,0,0)';
context.fillRect(10, 10, 55, 50);
context.fillStyle = 'rgba(0, 0, 250, 0.5)';
context.fillRect(30, 30, 55, 50);
</script>
</body>
</html></textarea>
<iframe id="preview"></iframe>
推荐答案
http://jsbin.com/aNirEnUB/4/edit
这是我所能做的最好的事情.
我摆脱了Codemirror，并使用了常规的文本框/文本区域.
我将其全部设置为易于回调的形式.
我不知道如何为iframe回调onchange或onkeyup事件.因此，我改为通过切换文本框来调用它.
This is the best I've been able to do.
I got rid of Codemirror, and used a regular textbox/textarea.
I set it all up in a form for easier callbacks.
I could not figure out how to callback an onchange or onkeyup event for the iframe. So instead I call it back by toggling the textbox.
window.onload = function() {
preview.document.designMode = 'On';
preview.document.execCommand("enableObjectResizing", false, "false");
preview.document.execCommand("enableInlineTableEditing", false, "false");
};
// Calls code from preview to textbox
function submit_form() {
var theForm = document.getElementById("container");
theForm.elements.code.value = window.frames.preview.document.body.innerHTML;
theForm.onclick();
}
$(document).ready(function() {
var code = $('#code'),
preview = $('[ID$=preview]');
// Live Debugging
code.keyup(IntPrev);
function IntPrev(e) {
preview.contents().find('body').html(code.val());
}
// Toggle between Designer and Code
$("#design-n-code").click(function() {
preview.toggle();
code.toggle();
}); code.hide();
});
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