我有一个 CodeMirror 实例，其中包含一些内容/文本和一些标记来突出显示某些区域。我想将所有内容(包括标记)保存到某些后端服务。然后我想恢复内容和标记，使恢复的文档看起来像原始文档(包括标记)。
实现这一目标的最佳方法是什么？
最佳答案
你可以看看我的代码。我不久前就做过这个。
http://jsfiddle.net/aljordan82/4ewe9/
<html>
<head>
<style>
.bg {
background:#CCC;
}
</style>
<script>
$(document).ready(function() {
var strSavedMarkers = $("#savedMarkers").val(); // get markers from textarea
var arrMarkers = JSON.parse(strSavedMarkers)
$("#markerStyle").html(".bg{background:#AAAAAA;}")
var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
mode: "text/html",
lineNumbers: true,
onCursorActivity: function() {}
});
//get content from textarea
editor.setValue($("#savedContent").val());
applyMarkers();
$("#mark").click(function() {
// Marked selected text
var marker = editor.markText(editor.getCursor(true), editor.getCursor(false), {
className: "bg"
});
// get values of marker. [ch , line , ch , line]
var tempArray = [marker.find().from.ch, marker.find().from.line, marker.find().to.ch, marker.find().to.line]
// we push this array to arrMarkers
arrMarkers.push(tempArray)
});
// when done editing
$("#save").click(function() {
JSON.stringify(arrMarkers)
$("#savedMarkers").val(JSON.stringify(arrMarkers))
});
function applyMarkers() {
var strSavedMarkers = $("#savedMarkers").val(); // get markers from textarea
var arrSavedMarkers = JSON.parse(strSavedMarkers)
for (x in arrSavedMarkers) {
var marker = arrSavedMarkers[x]
editor.markText({
'ch': marker[0],
'line': marker[1]
}, {
'ch': marker[2],
'line': marker[3]
}, {
className: "bg"
});
}
}
});
</script>
<head>
<body>
<p>we need two textareas, one to store array of markers and the other is so store the content.</p>
<p></p>
<textarea id="savedMarkers">[[20,3,40,3],[12,8,90,8]]</textarea>
<textarea id="savedContent">
<title>hidden textarea, poplate from back end</title>
<catalog>
<book id="bk101">
<author>Gambardella, Matthew</author>
<title>XML Developer's Guide</title>
<genre>Computer</genre>
<price>44.95</price>
<publish_date>2000-10-01</publish_date>
<description>An in-depth look at creating applications with XML.</description>
</book>
<book id="bk102">
<author>Ralls, Kim</author>
<title>Midnight Rain</title>
<genre>Fantasy</genre>
<price>5.95</price>
<publish_date>2000-12-16</publish_date>
<description>A former architect battles corporate zombies, an evil sorceress, and her own childhood to become queen of the world.</description>
</book>
<book id="bk103">
<author>Corets, Eva</author>
<title>Maeve Ascendant</title>
<genre>Fantasy</genre>
<price>5.95</price>
<publish_date>2000-11-17</publish_date>
<description>After the collapse of a nanotechnology society in England, the young survivors lay the foundation for a new society.</description>
</book>
<catalog>
</textarea>
<form>
<br/>
<textarea id="code" name="code"></textarea>
</form>
<button id="mark">Mark Selection</button>
<button id="save">Save Markers and Content</button>
</body>
关于javascript - 如何使用标记保存和恢复内容？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/16182587/