disable editor's context menu when switch preview is using right click

browser/components/CodeEditor.js

@@ -65,12 +65,16 @@ export default class CodeEditor extends React.Component {
     this.scrollToLineHandeler = this.scrollToLine.bind(this)
 
     this.formatTable = () => this.handleFormatTable()
+
+    if (props.switchPreview !== 'RIGHTCLICK') {
       this.contextMenuHandler = function (editor, event) {
         const menu = buildEditorContextMenu(editor, event)
         if (menu != null) {
           setTimeout(() => menu.popup(remote.getCurrentWindow()), 30)
         }
       }
+    }
+
     this.editorActivityHandler = () => this.handleEditorActivity()
 
     this.turndownService = new TurndownService()
@@ -137,7 +141,7 @@ export default class CodeEditor extends React.Component {
   }
 
   componentDidMount () {
-    const { rulers, enableRulers } = this.props
+    const { rulers, enableRulers, switchPreview } = this.props
     const expandSnippet = this.expandSnippet.bind(this)
     eventEmitter.on('line:jump', this.scrollToLineHandeler)
 
@@ -241,7 +245,9 @@ export default class CodeEditor extends React.Component {
     this.editor.on('blur', this.blurHandler)
     this.editor.on('change', this.changeHandler)
     this.editor.on('paste', this.pasteHandler)
+    if (switchPreview !== 'RIGHTCLICK') {
       this.editor.on('contextmenu', this.contextMenuHandler)
+    }
     eventEmitter.on('top:search', this.searchHandler)
 
     eventEmitter.emit('code:init')

browser/components/MarkdownEditor.js

@@ -278,6 +278,7 @@ class MarkdownEditor extends React.Component {
           onChange={(e) => this.handleChange(e)}
           onBlur={(e) => this.handleBlur(e)}
           spellCheck={config.editor.spellcheck}
+          switchPreview={config.editor.switchPreview}
         />
         <MarkdownPreview styleName={this.state.status === 'PREVIEW'
             ? 'preview'

browser/components/MarkdownSplitEditor.js

@@ -172,6 +172,7 @@ class MarkdownSplitEditor extends React.Component {
           onChange={this.handleOnChange.bind(this)}
           onScroll={this.handleScroll.bind(this)}
           spellCheck={config.editor.spellcheck}
+          switchPreview={config.editor.switchPreview}
        />
         <div styleName='slider' style={{left: this.state.codeEditorWidthInPercent + '%'}} onMouseDown={e => this.handleMouseDown(e)} >
           <div styleName='slider-hitbox' />