Javascript 将可编辑的iFrame更改回调到Codemirror
我已经尝试了一段时间,今天我决定让iframe可编辑,但还没有找到一种方法通过更改回调我对iframe所做的更改,并将这些更改直接应用到Codemirror 这可能吗 JavaScript/JQuery:Javascript 将可编辑的iFrame更改回调到Codemirror,javascript,jquery,Javascript,Jquery,我已经尝试了一段时间,今天我决定让iframe可编辑,但还没有找到一种方法通过更改回调我对iframe所做的更改,并将这些更改直接应用到Codemirror 这可能吗 JavaScript/JQuery: var delay; // Initialize CodeMirror editor var editor = CodeMirror.fromTextArea(document.getElementById('code'), { mode: 'text/html', tabM
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);
<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>
HTML:
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);
<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>
HTML5画布演示
p{font-family:monospace;}
画布窗格位于此处:
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(0,0250,0.5)';
context.fillRect(30,30,55,50);
通过
我几乎没有使用codemirror的经验,但是原始DOM允许使用Window.frames[]
访问iframes。如果您使用.addEventListener(“onchange”,function)
通过dom将数据拉回,您应该能够使用它
如果这个答案不够具体(或者超出范围,因为我不知道在您的框架内如何做),请告诉我您到底想收回什么,我会做更多的研究。
这是我能做的最好的了。我去掉了Codemirror,使用了一个普通的文本框/文本区。
我将其全部设置为一种形式,以便更轻松地进行回调。
我不知道如何为iframe回调onchange或onkeyup事件。因此,我通过切换文本框来调用它
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();
});
好奇的是,如果用户在iframe中更改html代码,您会有什么期望?我只是在尝试。在文档被更改后,我还无法确定如何将代码从iframe定向到codemirr。