初始化提交

public/static/plugs/ckeditor4/plugins/lineheight/lang/en.js

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+CKEDITOR.plugins.setLang('lineheight', 'en', {
+    title: 'Line Height'
+});

public/static/plugs/ckeditor4/plugins/lineheight/lang/zh-cn.js

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+CKEDITOR.plugins.setLang('lineheight', 'zh-cn', {
+    title: '行间距'
+});

public/static/plugs/ckeditor4/plugins/lineheight/lang/zh.js

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+CKEDITOR.plugins.setLang('lineheight', 'zh-cn', {
+    title: '行间距'
+});

public/static/plugs/ckeditor4/plugins/lineheight/plugin.js

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+(function () {
+    function addCombo(editor, comboName, styleType, lang, entries, defaultLabel, styleDefinition, order) {
+        var config = editor.config, style = new CKEDITOR.style(styleDefinition);
+        var names = entries.split(';'), values = [];
+        var styles = {};
+        for (var i = 0; i < names.length; i++) {
+            var parts = names[i];
+            if (parts) {
+                parts = parts.split('/');
+                var vars = {}, name = names[i] = parts[0];
+                vars[styleType] = values[i] = parts[1] || name;
+                styles[name] = new CKEDITOR.style(styleDefinition, vars);
+                styles[name]._.definition.name = name;
+            } else
+                names.splice(i--, 1);
+        }
+        editor.ui.addRichCombo(comboName, {
+            label: editor.lang.lineheight.title,
+            title: editor.lang.lineheight.title,
+            toolbar: 'styles,' + order,
+            allowedContent: style,
+            requiredContent: style,
+            panel: {
+                css: [CKEDITOR.skin.getPath('editor')].concat(config.contentsCss),
+                multiSelect: false,
+                attributes: {'aria-label': editor.lang.lineheight.title}
+            },
+            init: function () {
+                this.startGroup(editor.lang.lineheight.title);
+                for (var i = 0; i < names.length; i++) {
+                    var name = names[i];
+                    this.add(name, styles[name].buildPreview(), name);
+                }
+            },
+            onClick: function (value) {
+                editor.focus();
+                editor.fire('saveSnapshot');
+                var style = styles[value];
+                editor[this.getValue() == value ? 'removeStyle' : 'applyStyle'](style);
+                editor.fire('saveSnapshot');
+            },
+            onRender: function () {
+                editor.on('selectionChange', function (ev) {
+                    var currentValue = this.getValue();
+                    var elementPath = ev.data.path, elements = elementPath.elements;
+                    for (var i = 0, element; i < elements.length; i++) {
+                        element = elements[i];
+                        for (var value in styles) {
+                            if (styles[value].checkElementMatch(element, true, editor)) {
+                                if (value != currentValue)
+                                    this.setValue(value);
+                                return;
+                            }
+                        }
+                    }
+                    this.setValue('', defaultLabel);
+                }, this);
+            },
+            refresh: function () {
+                if (!editor.activeFilter.check(style))
+                    this.setState(CKEDITOR.TRISTATE_DISABLED);
+            }
+        });
+    }
+
+    CKEDITOR.plugins.add('lineheight', {
+        lang: 'en,zh,zh-cn',
+        requires: 'richcombo',
+        init: function (editor) {
+            var config = editor.config;
+            addCombo(editor, 'lineheight', 'size', editor.lang.lineheight.title, config.line_height, editor.lang.lineheight.title, config.lineHeight_style, 40);
+        }
+    });
+})();
+CKEDITOR.config.line_height = '1;2;3;4;5;6;7;8;9;10;11;12;13;14;15;16;17;18;19;20;21;22;23;24;25;26;27;28;29;30;31;32;33;34;35;36;37;38;39;40;41;42;43;44;45;46;47;48;49;50;51;52;53;54;55;56;57;58;59;60;61;62;63;64;65;66;67;68;69;70;71;72';
+CKEDITOR.config.lineHeight_style = {
+    element: 'span',
+    styles: {'line-height': '#(size)'},
+    overrides: [{
+        element: 'line-height', attributes: {'size': null}
+    }]
+};