背景

在一般的Web IDE中，我们需要将经常用到的一些操作放到顶部操作栏里，类似语雀的文档编辑。 代码编辑器，一般也会放一些查找，格式化，撤销，恢复。有些人喜欢用快捷键来进行这些操作，但由于monaco中内置的键盘快捷操作非常地多，所以有些人喜欢用按钮来实现某种操作。本篇文章就来带大家完成使用代码来触发某些action，完成点击一个按钮进行格式化，查找，显示右键菜单的操作。

核心方法

调用api来触发某个action或command，有二种方式，分别是

第一种：

直接使用editor.trigger(source: string, handlerId: string, payload: any): void 来触发某个内置或已经自定义的操作。只要知道handerId就可以完成。

第二种：

先使用editor.getAction(id: string): IEditorAction方法获取action实例，然后调用实例的run(): Promise<void>方法。返回一个Promise。

先说第一种，直接使用trigger方法触发某个操作。传入一个handlerId，也可以添加一些额外的数据。常用的handlerId有，

• editor.action.showContextMenu 显示右键菜单
• actions.find 查找操作
• editor.action.formatDocument 格式化文档

具体使用方法

// 执行格式化操作
editor.trigger('你自定义一个字符串', `editor.action.formatDocument`)

// 执行查找操作，会显示查找框
editor.trigger('你自定义一个字符串', `action.find`)

具体效果如下图：

第二种方案
传入一个 handlerId，就可以运行，

function getActionToTrigger(id){
  editor.getAction(id).run().then(() => {
    console.log('运行成功')
  })
}

// 触发查找操作
getActionToTrigger('action.find')

默认的actions

上面提到了要触发某个操作，必须要知道该操作的handlerId，那么具体有哪些HandlerId供使用哪？
对于这个问题我也查了很多资料。也搜索了官方的文档和代码。都没找到。最后我在控制台打印出editor的原型对象。最后发现 editor下有一个_actions属性。这里存放了所有可用的handlerId。
具体请看。

根据资料可以得知，目前有154个action

(index)	id	label	alias
0	‘editor.action.setSelectionAnchor’	‘Set Selection Anchor’	‘Set Selection Anchor’
1	‘editor.action.goToSelectionAnchor’	‘Go to Selection Anchor’	‘Go to Selection Anchor’
2	‘editor.action.selectFromAnchorToCursor’	‘Select from Anchor to Cursor’	‘Select from Anchor to Cursor’
3	‘editor.action.cancelSelectionAnchor’	‘Cancel Selection Anchor’	‘Cancel Selection Anchor’
4	‘editor.action.moveCarretLeftAction’	‘Move Selected Text Left’	‘Move Selected Text Left’
5	‘editor.action.moveCarretRightAction’	‘Move Selected Text Right’	‘Move Selected Text Right’
6	‘editor.action.transposeLetters’	‘Transpose Letters’	‘Transpose Letters’
7	‘editor.action.clipboardCopyWithSyntaxHighlightingAction’	‘Copy With Syntax Highlighting’	‘Copy With Syntax Highlighting’
8	‘editor.action.showContextMenu’	‘Show Editor Context Menu’	‘Show Editor Context Menu’
9	‘cursorUndo’	‘Cursor Undo’	‘Cursor Undo’
10	‘cursorRedo’	‘Cursor Redo’	‘Cursor Redo’
11	‘editor.action.fontZoomIn’	‘Editor Font Zoom In’	‘Editor Font Zoom In’
12	‘editor.action.fontZoomOut’	‘Editor Font Zoom Out’	‘Editor Font Zoom Out’
13	‘editor.action.fontZoomReset’	‘Editor Font Zoom Reset’	‘Editor Font Zoom Reset’
14	‘editor.action.formatDocument’	‘Format Document’	‘Format Document’
15	‘editor.action.formatSelection’	‘Format Selection’	‘Format Selection’
16	‘expandLineSelection’	‘Expand Line Selection’	‘Expand Line Selection’
17	‘editor.action.smartSelect.expand’	‘Expand Selection’	‘Expand Selection’
18	‘editor.action.smartSelect.shrink’	‘Shrink Selection’	‘Shrink Selection’
19	‘editor.action.toggleTabFocusMode’	‘Toggle Tab Key Moves Focus’	‘Toggle Tab Key Moves Focus’
20	‘editor.action.forceRetokenize’	‘Developer: Force Retokenize’	‘Developer: Force Retokenize’
21	‘editor.action.commentLine’	‘Toggle Line Comment’	‘Toggle Line Comment’
22	‘editor.action.addCommentLine’	‘Add Line Comment’	‘Add Line Comment’
23	‘editor.action.removeCommentLine’	‘Remove Line Comment’	‘Remove Line Comment’
24	‘editor.action.blockComment’	‘Toggle Block Comment’	‘Toggle Block Comment’
25	‘editor.action.indentationToSpaces’	‘Convert Indentation to Spaces’	‘Convert Indentation to Spaces’
26	‘editor.action.indentationToTabs’	‘Convert Indentation to Tabs’	‘Convert Indentation to Tabs’
27	‘editor.action.indentUsingTabs’	‘Indent Using Tabs’	‘Indent Using Tabs’
28	‘editor.action.indentUsingSpaces’	‘Indent Using Spaces’	‘Indent Using Spaces’
29	‘editor.action.detectIndentation’	‘Detect Indentation from Content’	‘Detect Indentation from Content’
30	‘editor.action.reindentlines’	‘Reindent Lines’	‘Reindent Lines’
31	‘editor.action.reindentselectedlines’	‘Reindent Selected Lines’	‘Reindent Selected Lines’
32	‘editor.action.copyLinesUpAction’	‘Copy Line Up’	‘Copy Line Up’
33	‘editor.action.copyLinesDownAction’	‘Copy Line Down’	‘Copy Line Down’
34	‘editor.action.duplicateSelection’	‘Duplicate Selection’	‘Duplicate Selection’
35	‘editor.action.moveLinesUpAction’	‘Move Line Up’	‘Move Line Up’
36	‘editor.action.moveLinesDownAction’	‘Move Line Down’	‘Move Line Down’
37	‘editor.action.sortLinesAscending’	‘Sort Lines Ascending’	‘Sort Lines Ascending’
38	‘editor.action.sortLinesDescending’	‘Sort Lines Descending’	‘Sort Lines Descending’
39	‘editor.action.removeDuplicateLines’	‘Delete Duplicate Lines’	‘Delete Duplicate Lines’
40	‘editor.action.trimTrailingWhitespace’	‘Trim Trailing Whitespace’	‘Trim Trailing Whitespace’
41	‘editor.action.deleteLines’	‘Delete Line’	‘Delete Line’
42	‘editor.action.indentLines’	‘Indent Line’	‘Indent Line’
43	‘editor.action.outdentLines’	‘Outdent Line’	‘Outdent Line’
44	‘editor.action.insertLineBefore’	‘Insert Line Above’	‘Insert Line Above’
45	‘editor.action.insertLineAfter’	‘Insert Line Below’	‘Insert Line Below’
46	‘deleteAllLeft’	‘Delete All Left’	‘Delete All Left’
47	‘deleteAllRight’	‘Delete All Right’	‘Delete All Right’
48	‘editor.action.joinLines’	‘Join Lines’	‘Join Lines’
49	‘editor.action.transpose’	‘Transpose characters around the cursor’	‘Transpose characters around the cursor’
50	‘editor.action.transformToUppercase’	‘Transform to Uppercase’	‘Transform to Uppercase’
51	‘editor.action.transformToLowercase’	‘Transform to Lowercase’	‘Transform to Lowercase’
52	‘editor.action.transformToSnakecase’	‘Transform to Snake Case’	‘Transform to Snake Case’
53	‘editor.action.transformToTitlecase’	‘Transform to Title Case’	‘Transform to Title Case’
54	‘editor.action.transformToKebabcase’	‘Transform to Kebab Case’	‘Transform to Kebab Case’
55	‘deleteInsideWord’	‘Delete Word’	‘Delete Word’
56	‘editor.action.quickCommand’	‘Command Palette’	‘Command Palette’
57	‘codelens.showLensesInCurrentLine’	‘Show CodeLens Commands For Current Line’	‘Show CodeLens Commands For Current Line’
58	‘editor.action.gotoLine’	‘Go to Line/Column…’	‘Go to Line/Column…’
59	‘editor.action.inPlaceReplace.up’	‘Replace with Previous Value’	‘Replace with Previous Value’
60	‘editor.action.inPlaceReplace.down’	‘Replace with Next Value’	‘Replace with Next Value’
61	‘editor.action.quickFix’	‘Quick Fix…’	‘Quick Fix…’
62	‘editor.action.refactor’	‘Refactor…’	‘Refactor…’
63	‘editor.action.refactor.preview’	‘Refactor with Preview…’	‘Refactor Preview…’
64	‘editor.action.sourceAction’	‘Source Action…’	‘Source Action…’
65	‘editor.action.organizeImports’	‘Organize Imports’	‘Organize Imports’
66	‘editor.action.autoFix’	‘Auto Fix…’	‘Auto Fix…’
67	‘editor.action.fixAll’	‘Fix All’	‘Fix All’
68	‘editor.action.rename’	‘Rename Symbol’	‘Rename Symbol’
69	‘editor.action.quickOutline’	‘Go to Symbol…’	‘Go to Symbol…’
70	‘editor.action.showAccessibilityHelp’	‘Show Accessibility Help’	‘Show Accessibility Help’
71	‘editor.action.inspectTokens’	‘Developer: Inspect Tokens’	‘Developer: Inspect Tokens’
72	‘editor.action.selectToBracket’	‘Select to Bracket’	‘Select to Bracket’
73	‘editor.action.jumpToBracket’	‘Go to Bracket’	‘Go to Bracket’
74	‘editor.action.linkedEditing’	‘Start Linked Editing’	‘Start Linked Editing’
75	‘editor.action.openLink’	‘Open Link’	‘Open Link’
76	‘editor.action.wordHighlight.next’	‘Go to Next Symbol Highlight’	‘Go to Next Symbol Highlight’
77	‘editor.action.wordHighlight.prev’	‘Go to Previous Symbol Highlight’	‘Go to Previous Symbol Highlight’
78	‘editor.action.wordHighlight.trigger’	‘Trigger Symbol Highlight’	‘Trigger Symbol Highlight’
79	‘editor.action.revealDefinition’	‘Go to Definition’	‘Go to Definition’
80	‘editor.action.revealDefinitionAside’	‘Open Definition to the Side’	‘Open Definition to the Side’
81	‘editor.action.peekDefinition’	‘Peek Definition’	‘Peek Definition’
82	‘editor.action.revealDeclaration’	‘Go to Declaration’	‘Go to Declaration’
83	‘editor.action.peekDeclaration’	‘Peek Declaration’	‘Peek Declaration’
84	‘editor.action.goToTypeDefinition’	‘Go to Type Definition’	‘Go to Type Definition’
85	‘editor.action.peekTypeDefinition’	‘Peek Type Definition’	‘Peek Type Definition’
86	‘editor.action.goToImplementation’	‘Go to Implementations’	‘Go to Implementations’
87	‘editor.action.peekImplementation’	‘Peek Implementations’	‘Peek Implementations’
88	‘editor.action.goToReferences’	‘Go to References’	‘Go to References’
89	‘editor.action.referenceSearch.trigger’	‘Peek References’	‘Peek References’
90	‘editor.action.diffReview.next’	‘Go to Next Difference’	‘Go to Next Difference’
91	‘editor.action.diffReview.prev’	‘Go to Previous Difference’	‘Go to Previous Difference’
92	‘editor.action.triggerParameterHints’	‘Trigger Parameter Hints’	‘Trigger Parameter Hints’
93	‘editor.action.toggleHighContrast’	‘Toggle High Contrast Theme’	‘Toggle High Contrast Theme’
94	‘actions.find’	‘Find’	‘Find’
95	‘editor.action.startFindReplaceAction’	‘Replace’	‘Replace’
96	‘editor.actions.findWithArgs’	‘Find With Arguments’	‘Find With Arguments’
97	‘actions.findWithSelection’	‘Find With Selection’	‘Find With Selection’
98	‘editor.action.nextMatchFindAction’	‘Find Next’	‘Find Next’
99	‘editor.action.previousMatchFindAction’	‘Find Previous’	‘Find Previous’
100	‘editor.action.nextSelectionMatchFindAction’	‘Find Next Selection’	‘Find Next Selection’
101	‘editor.action.previousSelectionMatchFindAction’	‘Find Previous Selection’	‘Find Previous Selection’
102	‘editor.action.insertCursorAbove’	‘Add Cursor Above’	‘Add Cursor Above’
103	‘editor.action.insertCursorBelow’	‘Add Cursor Below’	‘Add Cursor Below’
104	‘editor.action.insertCursorAtEndOfEachLineSelected’	‘Add Cursors to Line Ends’	‘Add Cursors to Line Ends’
105	‘editor.action.addSelectionToNextFindMatch’	‘Add Selection To Next Find Match’	‘Add Selection To Next Find Match’
106	‘editor.action.addSelectionToPreviousFindMatch’	‘Add Selection To Previous Find Match’	‘Add Selection To Previous Find Match’
107	‘editor.action.moveSelectionToNextFindMatch’	‘Move Last Selection To Next Find Match’	‘Move Last Selection To Next Find Match’
108	‘editor.action.moveSelectionToPreviousFindMatch’	‘Move Last Selection To Previous Find Match’	‘Move Last Selection To Previous Find Match’
109	‘editor.action.selectHighlights’	‘Select All Occurrences of Find Match’	‘Select All Occurrences of Find Match’
110	‘editor.action.changeAll’	‘Change All Occurrences’	‘Change All Occurrences’
111	‘editor.action.addCursorsToBottom’	‘Add Cursors To Bottom’	‘Add Cursors To Bottom’
112	‘editor.action.addCursorsToTop’	‘Add Cursors To Top’	‘Add Cursors To Top’
113	‘editor.action.focusNextCursor’	‘Focus Next Cursor’	‘Focus Next Cursor’
114	‘editor.action.focusPreviousCursor’	‘Focus Previous Cursor’	‘Focus Previous Cursor’
115	‘editor.unfold’	‘Unfold’	‘Unfold’
116	‘editor.unfoldRecursively’	‘Unfold Recursively’	‘Unfold Recursively’
117	‘editor.fold’	‘Fold’	‘Fold’
118	‘editor.foldRecursively’	‘Fold Recursively’	‘Fold Recursively’
119	‘editor.foldAll’	‘Fold All’	‘Fold All’
120	‘editor.unfoldAll’	‘Unfold All’	‘Unfold All’
121	‘editor.foldAllBlockComments’	‘Fold All Block Comments’	‘Fold All Block Comments’
122	‘editor.foldAllMarkerRegions’	‘Fold All Regions’	‘Fold All Regions’
123	‘editor.unfoldAllMarkerRegions’	‘Unfold All Regions’	‘Unfold All Regions’
124	‘editor.foldAllExcept’	‘Fold All Regions Except Selected’	‘Fold All Regions Except Selected’
125	‘editor.unfoldAllExcept’	‘Unfold All Regions Except Selected’	‘Unfold All Regions Except Selected’
126	‘editor.toggleFold’	‘Toggle Fold’	‘Toggle Fold’
127	‘editor.gotoParentFold’	‘Go to Parent Fold’	‘Go to Parent Fold’
128	‘editor.gotoPreviousFold’	‘Go to Previous Folding Range’	‘Go to Previous Folding Range’
129	‘editor.gotoNextFold’	‘Go to Next Folding Range’	‘Go to Next Folding Range’
130	‘editor.createFoldingRangeFromSelection’	‘Create Manual Folding Range from Selection’	‘Create Folding Range from Selection’
131	‘editor.removeManualFoldingRanges’	‘Remove Manual Folding Ranges’	‘Remove Manual Folding Ranges’
132	‘editor.foldLevel1’	‘Fold Level 1’	‘Fold Level 1’
133	‘editor.foldLevel2’	‘Fold Level 2’	‘Fold Level 2’
134	‘editor.foldLevel3’	‘Fold Level 3’	‘Fold Level 3’
135	‘editor.foldLevel4’	‘Fold Level 4’	‘Fold Level 4’
136	‘editor.foldLevel5’	‘Fold Level 5’	‘Fold Level 5’
137	‘editor.foldLevel6’	‘Fold Level 6’	‘Fold Level 6’
138	‘editor.foldLevel7’	‘Fold Level 7’	‘Fold Level 7’
139	‘editor.action.marker.next’	‘Go to Next Problem (Error, Warning, Info)’	‘Go to Next Problem (Error, Warning, Info)’
140	‘editor.action.marker.prev’	‘Go to Previous Problem (Error, Warning, Info)’	‘Go to Previous Problem (Error, Warning, Info)’
141	‘editor.action.marker.nextInFiles’	‘Go to Next Problem in Files (Error, Warning, Info)’	‘Go to Next Problem in Files (Error, Warning, Info)’
142	‘editor.action.marker.prevInFiles’	‘Go to Previous Problem in Files (Error, Warning, Info)’	‘Go to Previous Problem in Files (Error, Warning, Info)’
143	‘editor.action.showHover’	‘Show Hover’	‘Show Hover’
144	‘editor.action.showDefinitionPreviewHover’	‘Show Definition Preview Hover’	‘Show Definition Preview Hover’
145	‘editor.action.unicodeHighlight.disableHighlightingOfAmbiguousCharacters’	‘Disable highlighting of ambiguous characters’	‘Disable highlighting of ambiguous characters’
146	‘editor.action.unicodeHighlight.disableHighlightingOfInvisibleCharacters’	‘Disable highlighting of invisible characters’	‘Disable highlighting of invisible characters’
147	‘editor.action.unicodeHighlight.disableHighlightingOfNonBasicAsciiCharacters’	‘Disable highlighting of non basic ASCII characters’	‘Disable highlighting of non basic ASCII characters’
148	‘editor.action.unicodeHighlight.showExcludeOptions’	‘Show Exclude Options’	‘Show Exclude Options’
149	‘editor.action.triggerSuggest’	‘Trigger Suggest’	‘Trigger Suggest’
150	‘editor.action.resetSuggestSize’	‘Reset Suggest Widget Size’	‘Reset Suggest Widget Size’
151	‘editor.action.inlineSuggest.trigger’	‘Trigger Inline Suggestion’	‘Trigger Inline Suggestion’
152	‘editor.action.inlineSuggest.showNext’	‘Show Next Inline Suggestion’	‘Show Next Inline Suggestion’
153	‘editor.action.inlineSuggest.showPrevious’	‘Show Previous Inline Suggestion’	‘Show Previous Inline Suggestion’

完整代码

<!DOCTYPE html>
<html>

<head>
  <title>Hello World Monaco Editor</title>
  <meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
</head>

<body>
  <h2>Hello World CSDN@拿我格子衫来 Monaco Editor</h2>
  <button onclick="trigger('editor.action.showContextMenu')">显示右键</button>
  <button onclick="trigger('actions.find')">查找</button>
  <button onclick="trigger('editor.action.formatDocument')">格式化</button>
  <button onclick="trigger('editor.action.gotoLine')">跳转至N行</button>
  <button onclick="trigger('cursorUndo')">光标后退</button>
  <button onclick="trigger('cursorRedo')">光标前进</button>

  <button onclick="injectTriggerAction()">注入action并触发</button>

  <button onclick="getActionToTrigger('actions.find')">获取id并触发</button>

  <div id="container" style="width: 800px; height: 600px; border: 1px solid grey"></div>

  <script src="./monaco-editor/package/min/vs/loader.js"></script>
  <script src="./const.js"></script>
  <script>
    require.config({ paths: { vs: './monaco-editor/package/min/vs' } });
    let editor

    require(['vs/editor/editor.main'], function () {
      editor = monaco.editor.create(document.getElementById('container'), {
        value: oldVersion,
        language: 'javascript'
      });
    });


    function addCommand() {
      var fizzCommand = editor.createContextKey('fizzCommand', true);
      editor.addCommand(
        monaco.KeyMod.chord(
          monaco.KeyMod.CtrlCmd | monaco.KeyCode.End,
        )
        , function () {
          const currentModel = editor.getModel()
          console.log(currentModel)
          const lineCount = currentModel.getLineCount()
          const valueLength = currentModel.getValueLength()
          const options = currentModel.getOptions()
          alert(`Fizz Command:
              行数: ${lineCount},
              内容长度: ${valueLength},
           `);
        }, 'fizzCommand');
    }

    function injectTriggerAction() {
      editor.addAction({
        // An unique identifier of the contributed action.
        id: 'fizz-action',

        // A label of the action that will be presented to the user.
        label: 'Fizz Action',

        // An optional array of keybindings for the action.
        keybindings: [
          monaco.KeyMod.CtrlCmd | monaco.KeyCode.F10,
          // chord
          monaco.KeyMod.chord(
            monaco.KeyMod.CtrlCmd | monaco.KeyCode.KeyK,
            monaco.KeyMod.CtrlCmd | monaco.KeyCode.KeyM
          )
        ],

        // A precondition for this action.
        precondition: null,

        // A rule to evaluate on top of the precondition in order to dispatch the keybindings.
        keybindingContext: null,

        contextMenuGroupId: 'navigation',

        contextMenuOrder: 1.5,

        run: function (ed) {
          alert("i'm running => " + ed.getPosition());
        }
      });

      editor.trigger('你自定义一个字符串', 'fizz-action')
    }

    function trigger(commandId) {
      editor.trigger('你自定义一个字符串', commandId)
    }

    function getActionToTrigger(id){
      editor.getAction(id).run().then(() => {
        console.log('运行成功')
      })
    }

  </script>
</body>

</html>

总结

使用api来触发某个action，能够实现很多自动化操作。总之就是很牛X啊。