给wordpress编辑器添加自动代码高亮功能

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所属分类:建博笔记
摘 要

之前,在后台编辑文章需要插入代码时,都需要借助 代码高亮 页面先转换代码,然后复制转换后的代码到后台编辑器【文本】模式中。整个操作过程还是比较繁琐的,因为有时一篇文章下来,需要插入的代码片段会比较多,这样来回切换、复制粘贴也比较费时间。
现在,自动代码高亮功能可以大大节省这个时间,只需要在编辑器中点击【代码高亮】图标,然后将要高亮的代码粘贴到【文本框】里,最后点击【确定】按钮就好了。

第一部分 功能介绍

一、效果演示

后台效果演示:功能演示编辑器可视化模式下效果演示

前台效果演示:展开

  • 前台HTML效果演示
<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Document</title>
</head>
<body>
	
</body>
</html>
  • 前台CSS效果演示
table {
	border-collapse: separate;
	border-spacing: 0;
	border-width: 1px 0 0 1px;
	margin: 0 0 10px;
}
  • 前台JS效果演示
$('.shut-error').click(function() {
	$('.user_error').animate({
		opacity: 'toggle'
	},
	100);
	return false;
});
  • 前台PHP效果演示
function comments_embed_img($comment) {
	$size = 'auto';
	$comment = preg_replace(array('#(http://([^\s]*)\.(jpg|gif|png|JPG|GIF|PNG))#','#(https://([^\s]*)\.(jpg|gif|png|JPG|GIF|PNG))#'),'<img src="$1" alt="评论" style="width:'.$size.'; height:'.$size.'" />', $comment);
	return $comment;
}

常用的就这几种,其他的自己可以测试一下。

 

二、功能特点

之前,在后台编辑文章需要插入代码时,都需要借助 代码高亮 页面先转换代码,然后复制转换后的代码到后台编辑器【文本】模式中。整个操作过程还是比较繁琐的,因为有时一篇文章下来,需要插入的代码片段会比较多,这样来回切换、复制粘贴也比较费时间。

现在,自动代码高亮功能可以大大节省这个时间,只需要在编辑器中点击【代码高亮】图标,然后将要高亮的代码粘贴到【文本框】里,最后点击【确定】按钮就好了。

特点总结:方便、高效、自动、美观。

 

第二部分 功能实现

三、添加功能设置选项

打开【inc/options/begin-options.php】文件,找到代码

	$options[] = array(
		'name' => '',
		'desc' => '代码高亮显示',
		'id' => 'highlight',
		'std' => '1',
		'type' => 'checkbox'
	);

将其替换成

	$options[] = array(
		'name' => '',
		'desc' => '自动代码高亮显示',
		'id' => 'gcp_code',
		'std' => '1',
		'type' => 'checkbox'
	);

	$options[] = array(
		'id' => 'clear'
	);

	$options[] = array(
		'name' => '',
		'desc' => '手动代码高亮显示',
		'id' => 'highlight',
		'std' => '1',
		'type' => 'checkbox'
	);

添加代码后,可在【主题选项--基本设置】中找到该功能。

 

四、添加功能实现文件

首先:在【inc/】目录下新建一个名为【code】的文件夹

然后:在该文件夹内新建四个文件:【code-button.php】、【editor-plugin.js】、【insert-code.php】、【tinymce.php】

最后:分别将下面的代码复制到这四个文件中

【code-button.php】文件代码展开

<?php
/*
代码高亮
*/

if (in_array($pagenow, array('post.php', 'post-new.php', 'page.php', 'page-new.php'))) {
	add_action('init', 'zmgcp_addbuttons');
	add_action('admin_head', 'spces_code_plugin');
	add_action('admin_head', 'tinymce_button');
}

function zmgcp_addbuttons() {
	// Add only in Rich Editor mode
	if (get_user_option('rich_editing') == 'true') {
		// add the button for wp25 in a new way
		add_filter("mce_external_plugins", "add_zmgcp_tinymce_plugin", 5);
		add_filter('mce_buttons', 'register_zmgcp_button', 5);
	}
}

// used to insert button in wordpress 2.5x editor
function register_zmgcp_button($buttons) {
	array_push($buttons, "separator", "zmgcp");
	return $buttons;
}

// Load the TinyMCE plugin : editor_plugin.js (wp2.5)
function add_zmgcp_tinymce_plugin($plugin_array){
	$plugin_array['zmgcp'] = get_template_directory_uri() . '/inc/code/editor-plugin.js';
	return $plugin_array;
}

function prettify_script() {
	if(is_singular()){
		wp_enqueue_style( 'prettify', get_template_directory_uri() . '/css/prettify.css', array(), version );
		wp_enqueue_script( 'prettify', get_template_directory_uri() . '/js/prettify.js', array(), version, true );
	}
}
add_action('wp_enqueue_scripts', 'prettify_script');

【editor-plugin.js】文件代码展开

(function() {
	tinymce.create('tinymce.plugins.zmgcp', {
		init: function(ed, url) {
			ed.addCommand('zmgcp',
			function() {
				ed.windowManager.open({
					title: '插入代码',
					file: url + '/insert-code.php',
					width: 500,
					height: 410,
					inline: 1
				},
				{
					plugin_url: url // Plugin absolute URL
				});
			});

			ed.addButton('zmgcp', {
				title: '代码高亮',
				cmd: 'zmgcp',
				icon: 'code'

			});
		},
		createControl: function(n, cm) {
			return null;
		},
		getInfo: function() {
			return null;
		}
	});
	tinymce.PluginManager.add('zmgcp', tinymce.plugins.zmgcp);
})();

【insert-code.php】文件代码展开

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>插入代码</title>
<base target="_self"/>
<style type='text/css'>
body {
	font: 14px "Microsoft YaHei", Helvetica, Arial, Lucida Grande, Tahoma, sans-serif;
	background-color: #f1f1f1;
	color: #222;
}
.codeArea {
	margin: 5px;
}
#zmgcp_lang, #zmgcp_linenumber {
	display: none;
}
textarea {
	margin-top: 10px;
	width: 100%;
	height: 320px;
}
.button-primary {
	float: right;
	display: inline-block;
	text-decoration: none;
	font-size: 13px;
	line-height: 26px;
	height: 28px;
	margin: 0;
	padding: 0 10px 1px;
	cursor: pointer;
	border-width: 1px;
	border-style: solid;
	-webkit-appearance: none;
	-webkit-border-radius: 3px;
	border-radius: 3px;
	white-space: nowrap;
	-webkit-box-sizing: border-box;
	-moz-box-sizing: border-box;
	box-sizing: border-box;
	background: #00a0d2;
	border-color: #0073aa;
	-webkit-box-shadow: inset 0 1px 0 rgba(120,200,230,.5),0 1px 0 rgba(0,0,0,.15);
	box-shadow: inset 0 1px 0 rgba(120,200,230,.5),0 1px 0 rgba(0,0,0,.15);
	color: #fff
}

.button-primary.focus,.button-primary.hover,.button-primary:focus,.button-primary:hover {
	background: #0091cd;
	border-color: #0073aa;
	-webkit-box-shadow: inset 0 1px 0 rgba(120,200,230,.6);
	box-shadow: inset 0 1px 0 rgba(120,200,230,.6);
	color: #fff
}
.submitdelete {
	float: left;
}
</style>
</head>
<body id="link" >

<form name="zmgcp" action="#">
	<div class="codeArea">
		<!-- <label for="lang">选择语言:</label> -->
		<select id="zmgcp_lang" name="zmgcp_main" style="width: 200px">
			<option value="js" >javascript</option>
			<option value="css">css</option>
			<option value="html">html</option>
			<option value="php">php</option>
			<option value="sql">sql</option>
		</select>

		<!-- <label for="zmgcp_linenumber">开始行号:</label> -->
		<input type="text" name="linenumber" id="zmgcp_linenumber" value="1" size="3"/>
		<textarea id="zmgcp_code" autofocus></textarea>
		<p>
			<input type="submit" id="insert" name="insert" value="确定"  class="button button-primary" onclick="insertzmgcpcode();"/>
			<input type="button" id="cancel" name="cancel" value="取消" class="submitdelete" onclick="javascript:window.parent.tinyMCE.activeEditor.windowManager.close();"/>
		</p>
	</div>
</form>
<script>
var html = window.parent.tinyMCE.activeEditor.selection.getContent();
document.getElementById('zmgcp_code').value = html;

function escapeHtml(text) {
	return text.replace(/&/g, "&amp;").replace(/"/g, "&quot;").replace(/'/g, "'").replace(/</g, "&lt;").replace(/>/g, "&gt;");
}
function insertzmgcpcode() {

	var tagtext;
	var langname_ddb = document.getElementById('zmgcp_lang');
	var langname = langname_ddb.value;
	var linenumber = document.getElementById('zmgcp_linenumber').value;

	var html = escapeHtml(document.getElementById('zmgcp_code').value);

	if (langname_ddb == '123') {
		tagtext = '<pre class="prettyprint lang-' + langname + ' linenums:' + linenumber + '" >' + html + '</pre>';
	} else {
		tagtext = '<pre>' + html + '</pre>';
	}
	window.parent.tinyMCE.activeEditor.execCommand('mceInsertContent', 0, tagtext); //获取内容并插入到编辑器
	window.parent.tinyMCE.activeEditor.windowManager.close(); //关闭对话框
	/*window.tinymce.activeEditor.insertContent(tagtext);
	tinyMCEPopup.editor.execCommand('mceRepaint');
	tinyMCEPopup.close();*/
	return;
}
</script>
</body>
</html>

【tinymce.php】文件代码展开

function init() {
	tinyMCEPopup.resizeToInnerSize();
}

function escapeHtml(text) {
	return text.replace(/&/g, "&amp;").replace(/"/g, "&quot;").replace(/'/g, "'").replace(/</g, "&lt;").replace(/>/g, "&gt;");
}
function insertzmgcpcode() {

	var tagtext;
	var langname_ddb = document.getElementById('zmgcp_lang');
	var langname = langname_ddb.value;
	var linenumber = document.getElementById('zmgcp_linenumber').value;

	var html = escapeHtml(document.getElementById('zmgcp_code').value);

	if (langname_ddb == '123') {
		tagtext = '<pre class="prettyprint lang-' + langname + ' linenums:' + linenumber + '" >' + html + '</pre>';
	} else {
		tagtext = '<pre>' + html + '</pre>';
	}

	window.tinymce.activeEditor.insertContent(tagtext);
	tinyMCEPopup.editor.execCommand('mceRepaint');
	tinyMCEPopup.close();
	return;
}

 

五、添加功能样式文件

在主题根目录下的【css/】目录中新建一个名为【prettify.css】的文件,并复制下面的代码到该文件中展开

.pln {
	color: #000;
}

@media screen {
	.str {
		color: #080;
	}

	.kwd {
		color: #008;
	}

	.com {
		color: #800;
	}

	.typ {
		color: #606;
	}

	.lit {
		color: #066;
	}

	.pun,.opn,.clo {
		color: #660;
	}

	.tag {
		color: #008;
	}

	.atn {
		color: #606;
	}

	.atv {
		color: #080;
	}

	.dec,.var {
		color: #606;
	}

	.fun {
		color: red;
	}
}

@media print,projection {
	.str {
		color: #060;
	}

	.kwd {
		color: #006;
		font-weight: bold;
	}

	.com {
		color: #600;
		font-style: italic;
	}

	.typ {
		color: #404;
		font-weight: bold;
	}

	.lit {
		color: #044;
	}

	.pun,.opn,.clo {
		color: #440;
	}

	.tag {
		color: #006;
		font-weight: bold
	}

	.atn {
		color: #404;
	}

	.atv {
		color: #060;
	}
}

pre.prettyprint {
	padding: 2px;
	border: 1px solid #888;
}

ol.linenums {
	margin-top: 0;
	margin-bottom: 0;
}

li.L0,li.L1,li.L2,li.L3,li.L5,li.L6,li.L7,li.L8 {
	list-style-type: none;
}

.prettyprint,
pre.prettyprint {
	white-space: pre-wrap;
	word-wrap: break-word;
	background-color: #272822;
	border: 1px solid #272822;
	overflow: hidden;
	padding: 8px;
}

.prettyprint.linenums,
pre.prettyprint.linenums {
	-webkit-box-shadow: inset 40px 0 0 #39382E, inset 41px 0 0 #464741;
	-moz-box-shadow: inset 40px 0 0 #39382E, inset 41px 0 0 #464741;
	box-shadow: inset 40px 0 0 #39382E, inset 41px 0 0 #464741;
	border-radius: 2px;
}

.prettyprint.linenums ol,
pre.prettyprint.linenums ol {
	margin: 0 0 0 33px;
}

.prettyprint.linenums ol li,
pre.prettyprint.linenums ol li {
	padding-left: 12px;
	color: #777;
	line-height: 20px;
	margin-left: 0;
	list-style: decimal;
}

.prettyprint .com {
	color: #93a1a1;
}

.prettyprint .lit {
	color: #AE81FF;
}

.prettyprint .pun,
.prettyprint .opn, 
.prettyprint .clo {
	color: #F8F8F2;
}

.prettyprint .fun {
	color: #dc322f;
}

.prettyprint .str, 
.prettyprint .atv {
	color: #E6DB74;
}

.prettyprint .kwd, 
.prettyprint .tag {
	color: #F92659;
}

.prettyprint .typ, 
.prettyprint .atn, 
.prettyprint .dec, 
.prettyprint .var {
	color: #A6E22E;
}

.prettyprint .pln {
	color: #66D9EF;
}

 

六、添加功能脚本文件

在主题根目录下的【js/】目录中新建一个名为【prettify.js】的文件,并复制下面的代码到该文件中展开

!function(){var q=null;window.PR_SHOULD_USE_CONTINUATION=!0;
(function(){function S(a){function d(e){var b=e.charCodeAt(0);if(b!==92)return b;var a=e.charAt(1);return(b=r[a])?b:"0"<=a&&a<="7"?parseInt(e.substring(1),8):a==="u"||a==="x"?parseInt(e.substring(2),16):e.charCodeAt(1)}function g(e){if(e<32)return(e<16?"\\x0":"\\x")+e.toString(16);e=String.fromCharCode(e);return e==="\\"||e==="-"||e==="]"||e==="^"?"\\"+e:e}function b(e){var b=e.substring(1,e.length-1).match(/\\u[\dA-Fa-f]{4}|\\x[\dA-Fa-f]{2}|\\[0-3][0-7]{0,2}|\\[0-7]{1,2}|\\[\S\s]|[^\\]/g),e=[],a=
b[0]==="^",c=["["];a&&c.push("^");for(var a=a?1:0,f=b.length;a<f;++a){var h=b[a];if(/\\[bdsw]/i.test(h))c.push(h);else{var h=d(h),l;a+2<f&&"-"===b[a+1]?(l=d(b[a+2]),a+=2):l=h;e.push([h,l]);l<65||h>122||(l<65||h>90||e.push([Math.max(65,h)|32,Math.min(l,90)|32]),l<97||h>122||e.push([Math.max(97,h)&-33,Math.min(l,122)&-33]))}}e.sort(function(e,a){return e[0]-a[0]||a[1]-e[1]});b=[];f=[];for(a=0;a<e.length;++a)h=e[a],h[0]<=f[1]+1?f[1]=Math.max(f[1],h[1]):b.push(f=h);for(a=0;a<b.length;++a)h=b[a],c.push(g(h[0])),
h[1]>h[0]&&(h[1]+1>h[0]&&c.push("-"),c.push(g(h[1])));c.push("]");return c.join("")}function s(e){for(var a=e.source.match(/\[(?:[^\\\]]|\\[\S\s])*]|\\u[\dA-Fa-f]{4}|\\x[\dA-Fa-f]{2}|\\\d+|\\[^\dux]|\(\?[!:=]|[()^]|[^()[\\^]+/g),c=a.length,d=[],f=0,h=0;f<c;++f){var l=a[f];l==="("?++h:"\\"===l.charAt(0)&&(l=+l.substring(1))&&(l<=h?d[l]=-1:a[f]=g(l))}for(f=1;f<d.length;++f)-1===d[f]&&(d[f]=++x);for(h=f=0;f<c;++f)l=a[f],l==="("?(++h,d[h]||(a[f]="(?:")):"\\"===l.charAt(0)&&(l=+l.substring(1))&&l<=h&&
(a[f]="\\"+d[l]);for(f=0;f<c;++f)"^"===a[f]&&"^"!==a[f+1]&&(a[f]="");if(e.ignoreCase&&m)for(f=0;f<c;++f)l=a[f],e=l.charAt(0),l.length>=2&&e==="["?a[f]=b(l):e!=="\\"&&(a[f]=l.replace(/[A-Za-z]/g,function(a){a=a.charCodeAt(0);return"["+String.fromCharCode(a&-33,a|32)+"]"}));return a.join("")}for(var x=0,m=!1,j=!1,k=0,c=a.length;k<c;++k){var i=a[k];if(i.ignoreCase)j=!0;else if(/[a-z]/i.test(i.source.replace(/\\u[\da-f]{4}|\\x[\da-f]{2}|\\[^UXux]/gi,""))){m=!0;j=!1;break}}for(var r={b:8,t:9,n:10,v:11,
f:12,r:13},n=[],k=0,c=a.length;k<c;++k){i=a[k];if(i.global||i.multiline)throw Error(""+i);n.push("(?:"+s(i)+")")}return RegExp(n.join("|"),j?"gi":"g")}function T(a,d){function g(a){var c=a.nodeType;if(c==1){if(!b.test(a.className)){for(c=a.firstChild;c;c=c.nextSibling)g(c);c=a.nodeName.toLowerCase();if("br"===c||"li"===c)s[j]="\n",m[j<<1]=x++,m[j++<<1|1]=a}}else if(c==3||c==4)c=a.nodeValue,c.length&&(c=d?c.replace(/\r\n?/g,"\n"):c.replace(/[\t\n\r ]+/g," "),s[j]=c,m[j<<1]=x,x+=c.length,m[j++<<1|1]=
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	 prettyPrint();
})

 

七、添加功能调用文件

打开【inc/inc.php】文件,找到代码

// edd custom-fields
if (zm_get_option('edd')) {
	$download_args = array('supports' => apply_filters( 'edd_download_supports', array( 'custom-fields') ),);
	register_post_type( 'download', apply_filters( 'edd_download_post_type_args', $download_args ) );
}

在其上面添加

// 自动代码高亮
if (zm_get_option('gcp_code')) {require get_template_directory() . '/inc/code/code-button.php';}

 

八、其他

完成以上操作后,在【主题选项--基本设置】中勾选【自动代码高亮】选项后就可以在编辑文章时使用该功能了。使用方法请参考上面的【效果演示】。

发表评论

:?: :razz: :sad: :evil: :!: :smile: :oops: :grin: :eek: :shock: :???: :cool: :lol: :mad: :twisted: :roll: :wink: :idea: :arrow: :neutral: :cry: :mrgreen:

目前评论:2   其中:访客  1   博主  1

    • avatar 小天天 1

      感谢楼主的文章,但有个错误
      editor-plugin.php修改成editor-plugin.js