WordPress 3.9+ TinyMCE 4 增强：添加样式、按钮、字体、下拉菜单和弹出式窗口

// 在编辑器中启用字体和字体大小选择
if ( ! function_exists( 'wpex_mce_buttons' ) ) {
	function wpex_mce_buttons( $buttons ) {
		array_unshift( $buttons, 'fontselect' ); // 添加字体选择
		array_unshift( $buttons, 'fontsizeselect' ); // 添加字体大小选择
		return $buttons;
	}
}
add_filter( 'mce_buttons_2', 'wpex_mce_buttons' );

// 自定义编辑器字体大小
if ( ! function_exists( 'wpex_mce_text_sizes' ) ) {
	function wpex_mce_text_sizes( $initArray ){
		$initArray['fontsize_formats'] = "9px 10px 12px 13px 14px 16px 18px 21px 24px 28px 32px 36px";
		return $initArray;
	}
}
add_filter( 'tiny_mce_before_init', 'wpex_mce_text_sizes' );

// 添加自定义字体到字体列表
if ( ! function_exists( 'wpex_mce_google_fonts_array' ) ) {
	function wpex_mce_google_fonts_array( $initArray ) {
	    $initArray['font_formats'] = 'Lato=Lato;Andale Mono=andale mono,times;Arial=arial,helvetica,sans-serif;Arial Black=arial black,avant garde;Book Antiqua=book antiqua,palatino;Comic Sans MS=comic sans ms,sans-serif;Courier New=courier new,courier;Georgia=georgia,palatino;Helvetica=helvetica;Impact=impact,chicago;Symbol=symbol;Tahoma=tahoma,arial,helvetica,sans-serif;Terminal=terminal,monaco;Times New Roman=times new roman,times;Trebuchet MS=trebuchet ms,geneva;Verdana=verdana,geneva;Webdings=webdings;Wingdings=wingdings,zapf dingbats';
            return $initArray;
	}
}
add_filter( 'tiny_mce_before_init', 'wpex_mce_google_fonts_array' );

// 添加 google 字体脚本
if ( ! function_exists( 'wpex_mce_google_fonts_styles' ) ) {
	function wpex_mce_google_fonts_styles() {
	   $font_url = 'http://fonts.lug.ustc.edu.cn/css?family=Lato:300,400,700';
           add_editor_style( str_replace( ',', '%2C', $font_url ) );
	}
}
add_action( 'init', 'wpex_mce_google_fonts_styles' );

// 添加格式下拉菜单到编辑器中
if ( ! function_exists( 'wpex_style_select' ) ) {
	function wpex_style_select( $buttons ) {
		array_push( $buttons, 'styleselect' );
		return $buttons;
	}
}
add_filter( 'mce_buttons', 'wpex_style_select' );

// 添加新样式到格式下拉菜单中
if ( ! function_exists( 'wpex_styles_dropdown' ) ) {
	function wpex_styles_dropdown( $settings ) {

		// 创建新样式的数组
		$new_styles = array(
			array(
				'title'	=> __( 'Custom Styles', 'wpex' ),
				'items'	=> array(
					array(
						'title'		=> __('Theme Button','wpex'),
						'selector'	=> 'a',
						'classes'	=> 'theme-button'
					),
					array(
						'title'		=> __('Highlight','wpex'),
						'inline'	=> 'span',
						'classes'	=> 'text-highlight',
					),
				),
			),
		);

		// 合并新老样式
		$settings['style_formats_merge'] = true;

		// 添加新样式
		$settings['style_formats'] = json_encode( $new_styles );

		// 返回新设置
		return $settings;

	}
}
add_filter( 'tiny_mce_before_init', 'wpex_styles_dropdown' );

// 挂载函数到正确的钩子
function my_add_mce_button() {
	// 检查用户权限
	if ( !current_user_can( 'edit_posts' ) && !current_user_can( 'edit_pages' ) ) {
		return;
	}
	// 检查是否启用可视化编辑
	if ( 'true' == get_user_option( 'rich_editing' ) ) {
		add_filter( 'mce_external_plugins', 'my_add_tinymce_plugin' );
		add_filter( 'mce_buttons', 'my_register_mce_button' );
	}
}
add_action('admin_head', 'my_add_mce_button');

// 声明新按钮的脚本
function my_add_tinymce_plugin( $plugin_array ) {
	$plugin_array['my_mce_button'] = get_template_directory_uri() .'https://static.wpdaxue.com/js/mce-button.js';
	return $plugin_array;
}

// 在编辑器上注册新按钮
function my_register_mce_button( $buttons ) {
	array_push( $buttons, 'my_mce_button' );
	return $buttons;
}

(function() {
	tinymce.PluginManager.add('my_mce_button', function( editor, url ) {
		editor.addButton('my_mce_button', {
			text: 'New Button',
			icon: false,
			onclick: function() {
				editor.insertContent('WPExplorer.com is awesome!');
			}
		});
	});
})();

function my_shortcodes_mce_css() {
	wp_enqueue_style('symple_shortcodes-tc', plugins_url('https://static.wpdaxue.com/css/my-mce-style.css', __FILE__) );
}
add_action( 'admin_enqueue_scripts', 'my_shortcodes_mce_css' );

i.my-mce-icon {
	background-image: url('你的图标地址');
}

(function() {
	tinymce.PluginManager.add('my_mce_button', function( editor, url ) {
		editor.addButton( 'my_mce_button', {
			icon: 'my-mce-icon',
			onclick: function() {
				editor.insertContent('WPExplorer.com is awesome!');
			}
		});
	});
})();

(function() {
	tinymce.PluginManager.add('my_mce_button', function( editor, url ) {
		editor.addButton( 'my_mce_button', {
			text: 'Sample Dropdown',
			icon: false,
			type: 'menubutton',
			menu: [
				{
					text: 'Item 1',
					menu: [
						{
							text: 'Sub Item 1',
							onclick: function() {
								editor.insertContent('WPExplorer.com is awesome!');
							}
						},
						{
							text: 'Sub Item 2',
							onclick: function() {
								editor.insertContent('WPExplorer.com is awesome!');
							}
						}
					]
				},
				{
					text: 'Item 2',
					menu: [
						{
							text: 'Sub Item 1',
							onclick: function() {
								editor.insertContent('WPExplorer.com is awesome!');
							}
						},
						{
							text: 'Sub Item 2',
							onclick: function() {
								editor.insertContent('WPExplorer.com is awesome!');
							}
						}
					]
				}
			]
		});
	});
})();

(function() {
	tinymce.PluginManager.add('my_mce_button', function( editor, url ) {
		editor.addButton( 'my_mce_button', {
			text: 'Sample Dropdown',
			icon: false,
			type: 'menubutton',
			menu: [
				{
					text: 'Item 1',
					menu: [
						{
							text: 'Pop-Up',
							onclick: function() {
								editor.windowManager.open( {
									title: 'Insert Random Shortcode',
									body: [
										{
											type: 'textbox',
											name: 'textboxName',
											label: 'Text Box',
											value: '30'
										},
										{
											type: 'textbox',
											name: 'multilineName',
											label: 'Multiline Text Box',
											value: 'You can say a lot of stuff in here',
											multiline: true,
											minWidth: 300,
											minHeight: 100
										},
										{
											type: 'listbox',
											name: 'listboxName',
											label: 'List Box',
											'values': [
												{text: 'Option 1', value: '1'},
												{text: 'Option 2', value: '2'},
												{text: 'Option 3', value: '3'}
											]
										}
									],
									onsubmit: function( e ) {
										editor.insertContent( '[random_shortcode textbox="' + e.data.textboxName + '" multiline="' + e.data.multilineName + '" listbox="' + e.data.listboxName + '"]');
									}
								});
							}
						}
					]
				}
			]
		});
	});
})();