我正在使用 codemirror 允许用户键入任何代码,如 css/html/js。
如果用户输入类似 css 模式的内容,我需要启用
div {
padding-
}
它应该提示用户从列表中选择可用的选项,如
div {
padding-top
padding-left
padding-right
padding-bottom
}
类似于使用 codemirror 的 sublime 编辑器。 Sublime 自动提示的演示请参见附图
这是我的代码:
<script src="codemirror-5.4/mode/javascript/javascript.js"></script>
<script src="codemirror-5.4/mode/css/css.js"></script>
<script src="codemirror-5.4/mode/htmlmixed/htmlmixed.js"></script>
<script src="codemirror-5.4/addon/display/fullscreen.js"></script>
<script src="codemirror-5.4/keymap/sublime.js"></script>
<script src="codemirror-5.4/addon/hint/show-hint.js"></script>
<script src="codemirror-5.4/addon/hint/css-hint.js"></script>
<script src="codemirror-5.4/addon/hint/javascript.js"></script>
<h3>Editor</h3>
<div class="control-group">
<label class="control-label" for="textarea2">HTML</label>
<div class="controls">
<textarea class="code" name="code" id="codert" cols="40" rows="5" placeholder="Enter code here ..." style="width: 810px; height: 200px">
</textarea>
</div>
</div>
<div class="control-group">
<label class="control-label" for="textarea3">CSS</label>
<div class="controls">
<textarea id="code" class="code" name="codeCSS" cols="40" rows="5" placeholder="Enter code here ..." style="width: 810px; height: 200px">
</textarea>
</div>
</div>
<div class="control-group">
<label class="control-label" for="textarea3">javascript</label>
<div class="controls">
<textarea id="codeJS" class="code" name="codeJS" cols="40" rows="5" placeholder="Enter code here ..." style="width: 0px; height: 0px">
</textarea>
</div>
</div>
代码镜像的 JavaScript 代码
<script>
function loadCSS() {
var $head = $("#preview").contents().find("head");
$head.html("<style>" + editor.getValue() + "</style>");
};
function loadJS() {
var scriptTag = "<script>"+editorJS.getValue()+"<";
scriptTag += "/script>";
var previewFrame2 = document.getElementById('preview');
var preview2 = previewFrame2.contentDocument || previewFrame2.contentWindow.document;
preview2.open();
preview2.write(editor2.getValue()+scriptTag);
preview2.close();
loadCSS();
};
var delay;
// Initialize CodeMirror editor with a nice html5 canvas demo.
// css editor
var editor = CodeMirror.fromTextArea(document.getElementById('code'), {
lineNumbers: true,
styleActiveLine: true,
matchBrackets: true,
mode: "text/x-scss",
keyMap: "sublime",
theme: 'monokai',
autoCloseTags: true,
lineWrapping: true,
extraKeys: {"Ctrl-Space": "autocomplete"}
});
editor.on("change", function() {
clearTimeout(delay);
delay = setTimeout(updatePreview, 0);
});
function updatePreview() {
loadCSS();
}
setTimeout(updatePreview, 0);
var delay2;
// Initialize CodeMirror editor with a nice html5 canvas demo.
var editor2 = CodeMirror.fromTextArea(document.getElementById('codert'), {
lineNumbers: true,
styleActiveLine: true,
matchBrackets: true,
mode: "text/html",
keyMap: "sublime",
theme: 'monokai',
autoCloseTags: true,
lineWrapping: true,
extraKeys: {"Ctrl-Space": "autocomplete"}
});
editor2.on("change", function() {
clearTimeout(delay2);
delay2 = setTimeout(updatePreview2, 0);
});
function updatePreview2() {
var scriptTag = "<script>"+editorJS.getValue()+"<";
scriptTag += "/script>";
var previewFrame2 = document.getElementById('preview');
var preview2 = previewFrame2.contentDocument || previewFrame2.contentWindow.document;
preview2.open();
preview2.write(editor2.getValue()+scriptTag);
preview2.close();
loadCSS();
}
setTimeout(updatePreview2, 0);
var delayJS;
// Initialize CodeMirror editor with a nice html5 canvas demo.
var editorJS = CodeMirror.fromTextArea(document.getElementById('codeJS'), {
lineNumbers: true,
styleActiveLine: true,
matchBrackets: true,
mode: 'javascript',
keyMap: "sublime",
theme: 'monokai',
autoCloseTags: true,
lineWrapping: true,
extraKeys: {"Ctrl-Space": "autocomplete"}
});
editorJS.on("change", function() {
clearTimeout(delayJS);
delayJS = setTimeout(updatePreviewJS, 0);
});
function updatePreviewJS() {
loadJS();
}
setTimeout(updatePreviewJS, 0);
</script>
最佳答案
您没有发布所有代码,所以我可能是错的,但请确保将 show-hint.css
样式表添加到页眉。
<link rel="stylesheet" href="../addon/hint/show-hint.css">
否则,提示不会出现,我假设自动完成功能不起作用。
关于javascript - 如何使用 codemirror 启用代码提示?,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/32165851/