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324 lines
14 KiB
Markdown
324 lines
14 KiB
Markdown
---
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tableOfContents: true
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---
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# Commands
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## Introduction
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The editor provides a ton of commands to programmatically add or change content or alter the selection. If you want to build your own editor you definitely want to learn more about them.
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## Execute a command
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All available commands are accessible through an editor instance. Let’s say you want to make text bold when a user clicks on a button. That’s how that would look like:
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```js
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editor.commands.setBold()
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```
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While that’s perfectly fine and does make the selected bold, you’d likely want to chain multiple commands in one run. Let’s have a look at how that works.
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### Chain commands
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Most commands can be combined to one call. That’s shorter than separate function calls in most cases. Here is an example to make the selected text bold:
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```js
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editor
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.chain()
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.focus()
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.toggleBold()
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.run()
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```
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The `.chain()` is required to start a new chain and the `.run()` is needed to actually execute all the commands in between.
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In the example above two different commands are executed at once. When a user clicks on a button outside of the content, the editor isn’t in focus anymore. That’s why you probably want to add a `.focus()` call to most of your commands. It brings back the focus to the editor, so the user can continue to type.
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All chained commands are kind of queued up. They are combined to one single transaction. That means, the content is only updated once, also the `update` event is only triggered once.
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:::warning Important
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By default Prosemirror **does not support chaining** which means that you need to update the positions between chained commands via [**Transaction mapping**](https://prosemirror.net/docs/ref/#transform.Mapping).
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:::
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For example you want to chain a **delete** and **insert** command in one chain, you need to keep track of the position inside your chain commands. Here is an example:
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```js
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// here we add two custom commands to the editor to demonstrate transaction mapping between two transaction steps
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addCommands() {
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return {
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delete: () => ({ tr }) => {
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const { $from, $to } = tr.selection
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// here we use tr.mapping.map to map the position between transaction steps
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const from = tr.mapping.map($from.pos)
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const to = tr.mapping.map($to.pos)
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tr.delete(from, to)
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return true
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},
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insert: (content: string) => ({ tr }) => {
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const { $from } = tr.selection
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// here we use tr.mapping.map to map the position between transaction steps
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const pos = tr.mapping.map($from.pos)
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tr.insertText(content, pos)
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return true
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},
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}
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}
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```
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Now you can do the following without `insert` inserting the content into the wrong position:
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```js
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editor.chain().delete().insert('foo').run()
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```
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#### Chaining inside custom commands
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When chaining a command, the transaction is held back. If you want to chain commands inside your custom commands, you’ll need to use said transaction and add to it. Here is how you would do that:
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```js
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addCommands() {
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return {
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customCommand: attributes => ({ chain }) => {
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// Doesn’t work:
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// return editor.chain() …
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// Does work:
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return chain()
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.insertContent('foo!')
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.insertContent('bar!')
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.run()
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},
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}
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}
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```
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### Inline commands
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In some cases, it’s helpful to put some more logic in a command. That’s why you can execute commands in commands. I know, that sounds crazy, but let’s look at an example:
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```js
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editor
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.chain()
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.focus()
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.command(({ tr }) => {
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// manipulate the transaction
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tr.insertText('hey, that’s cool!')
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return true
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})
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.run()
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```
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### Dry run for commands
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Sometimes, you don’t want to actually run the commands, but only know if it would be possible to run commands, for example to show or hide buttons in a menu. That’s what we added `.can()` for. Everything coming after this method will be executed, without applying the changes to the document:
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```js
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editor
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.can()
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.toggleBold()
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```
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And you can use it together with `.chain()`, too. Here is an example which checks if it’s possible to apply all the commands:
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```js
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editor
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.can()
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.chain()
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.toggleBold()
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.toggleItalic()
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.run()
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```
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Both calls would return `true` if it’s possible to apply the commands, and `false` in case it’s not.
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In order to make that work with your custom commands, don’t forget to return `true` or `false`.
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For some of your own commands, you probably want to work with the raw [transaction](/api/introduction). To make them work with `.can()` you should check if the transaction should be dispatched. Here is how you can create a simple `.insertText()` command:
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```js
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export default (value) => ({ tr, dispatch }) => {
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if (dispatch) {
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tr.insertText(value)
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}
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return true
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}
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```
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If you’re just wrapping another Tiptap command, you don’t need to check that, we’ll do it for you.
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```js
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addCommands() {
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return {
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bold: () => ({ commands }) => {
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return commands.toggleMark('bold')
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},
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}
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}
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```
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If you’re just wrapping a plain ProseMirror command, you’ll need to pass `dispatch` anyway. Then there’s also no need to check it:
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```js
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import { exitCode } from '@tiptap/pm/commands'
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export default () => ({ state, dispatch }) => {
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return exitCode(state, dispatch)
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}
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```
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### Try commands
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If you want to run a list of commands, but want only the first successful command to be applied, you can do this with the `.first()` method. This method runs one command after the other and stops at the first which returns `true`.
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For example, the backspace key tries to undo an input rule first. If that was successful, it stops there. If no input rule has been applied and thus can’t be reverted, it runs the next command and deletes the selection, if there is one. Here is the simplified example:
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```js
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editor.first(({ commands }) => [
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() => commands.undoInputRule(),
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() => commands.deleteSelection(),
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// …
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])
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```
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Inside of commands you can do the same thing:
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```js
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export default () => ({ commands }) => {
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return commands.first([
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() => commands.undoInputRule(),
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() => commands.deleteSelection(),
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// …
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])
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}
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```
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## List of commands
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Have a look at all of the core commands listed below. They should give you a good first impression of what’s possible.
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### Content
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| Command | Description | Links |
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| ------------------ | -------------------------------------------------------- | --------------------------------------- |
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| clearContent() | Clear the whole document. | [More](/api/commands/clear-content) |
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| insertContent() | Insert a node or string of HTML at the current position. | [More](/api/commands/insert-content) |
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| insertContentAt() | Insert a node or string of HTML at a specific position. | [More](/api/commands/insert-content-at) |
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| setContent() | Replace the whole document with new content. | [More](/api/commands/set-content) |
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### Nodes & Marks
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| Command | Description | Links |
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| ----------------------- | --------------------------------------------------------- | ------------------------------------ |
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| clearNodes() | Normalize nodes to a simple paragraph. | [More](/api/commands/clear-nodes) |
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| createParagraphNear() | Create a paragraph nearby. | [More](/api/commands/create-paragraph-near) |
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| deleteNode() | Delete a node. | [More](/api/commands/delete-node) |
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| extendMarkRange() | Extends the text selection to the current mark. | [More](/api/commands/extend-mark-range) |
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| exitCode() | Exit from a code block. | [More](/api/commands/exit-code) |
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| joinBackward() | Join two nodes backward. | [More](/api/commands/join-backward) |
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| joinForward() | Join two nodes forward. | [More](/api/commands/join-forward) |
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| lift() | Removes an existing wrap. | [More](/api/commands/lift) |
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| liftEmptyBlock() | Lift block if empty. | [More](/api/commands/lift-empty-block) |
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| newlineInCode() | Add a newline character in code. | [More](/api/commands/newline-in-code) |
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| resetAttributes() | Resets some node or mark attributes to the default value. | [More](/api/commands/reset-attributes) |
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| setMark() | Add a mark with new attributes. | [More](/api/commands/set-mark) |
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| setNode() | Replace a given range with a node. | [More](/api/commands/set-node) |
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| splitBlock() | Forks a new node from an existing node. | [More](/api/commands/split-block) |
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| toggleMark() | Toggle a mark on and off. | [More](/api/commands/toggle-mark) |
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| toggleNode() | Toggle a node with another node. | [More](/api/commands/toggle-node) |
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| toggleWrap() | Wraps nodes in another node, or removes an existing wrap. | [More](/api/commands/toggle-wrap) |
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| undoInputRule() | Undo an input rule. | [More](/api/commands/undo-input-rule) |
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| unsetAllMarks() | Remove all marks in the current selection. | [More](/api/commands/unset-all-marks) |
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| unsetMark() | Remove a mark in the current selection. | [More](/api/commands/unset-mark) |
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| updateAttributes() | Update attributes of a node or mark. | [More](/api/commands/update-attributes) |
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### Lists
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| Command | Description | Links |
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| ---------------- | ------------------------------------------- | ------------------------------------ |
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| liftListItem() | Lift the list item into a wrapping list. | [More](/api/commands/lift-list-item) |
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| sinkListItem() | Sink the list item down into an inner list. | [More](/api/commands/sink-list-item) |
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| splitListItem() | Splits one list item into two list items. | [More](/api/commands/split-list-item) |
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| toggleList() | Toggle between different list types. | [More](/api/commands/toggle-list) |
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| wrapInList() | Wrap a node in a list. | [More](/api/commands/wrap-in-list) |
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### Selection
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| Command | Description | Links |
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| --------------------- | --------------------------------------- | ------------------------------------ |
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| blur() | Removes focus from the editor. | [More](/api/commands/blur) |
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| deleteRange() | Delete a given range. | [More](/api/commands/delete-range) |
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| deleteSelection() | Delete the selection, if there is one. | [More](/api/commands/delete-selection) |
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| enter() | Trigger enter. | [More](/api/commands/enter) |
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| focus() | Focus the editor at the given position. | [More](/api/commands/focus) |
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| keyboardShortcut() | Trigger a keyboard shortcut. | [More](/api/commands/keyboard-shortcut) |
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| scrollIntoView() | Scroll the selection into view. | [More](/api/commands/scroll-into-view) |
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| selectAll() | Select the whole document. | [More](/api/commands/select-all) |
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| selectNodeBackward() | Select a node backward. | [More](/api/commands/select-node-backward) |
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| selectNodeForward() | Select a node forward. | [More](/api/commands/select-node-forward) |
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| selectParentNode() | Select the parent node. | [More](/api/commands/select-parent-node) |
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| setNodeSelection() | Creates a NodeSelection. | [More](/api/commands/set-node-selection) |
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| setTextSelection() | Creates a TextSelection. | [More](/api/commands/set-text-selection) |
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<!-- ## Example use cases
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### Quote a text
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TODO
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Add a blockquote, with a specified text, add a paragraph below, set the cursor there.
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```js
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// Untested, work in progress, likely to change
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this.editor
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.chain()
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.focus()
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.createParagraphNear()
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.insertContent(text)
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.setBlockquote()
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.insertContent('<p></p>')
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.createParagraphNear()
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.unsetBlockquote()
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.createParagraphNear()
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.insertContent('<p></p>')
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.run()
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```
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Add a custom command to insert a node.
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```js
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addCommands() {
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return {
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insertTimecode: attributes => ({ chain }) => {
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return chain()
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.focus()
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.insertContent({
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type: 'heading',
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attrs: {
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level: 2,
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},
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content: [
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{
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type: 'text',
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text: 'heading',
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},
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],
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})
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.insertText(' ')
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.run();
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},
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}
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},
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```
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-->
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## Write your own commands
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All extensions can add additional commands (and most do), check out the specific [documentation for the provided nodes](/api/nodes), [marks](/api/marks), and [extensions](/api/extensions) to learn more about those. And of course, you can [add your custom extensions](/guide/custom-extensions) with custom commands aswell.
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But how do you write those commands? There’s a little bit to learn about that.
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:::pro Oops, this is work in progress
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A well-written documentation needs attention to detail, a great understanding of the project and time to write.
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Though Tiptap is used by thousands of developers all around the world, it’s still a side project for us. Let’s change that and make open source our full-time job! With nearly 300 sponsors we are half way there already.
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Join them and become a sponsor! Enable us to put more time into open source and we’ll fill this page and keep it up to date for you.
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[Become a sponsor on GitHub →](https://github.com/sponsors/ueberdosis)
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:::
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