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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,90 +1,125 @@ | ||
| import * as CSS from 'csstype' | ||
| import { EditorState, EditorStateConfig, Compartment, Extension, StateEffect } from '@codemirror/state' | ||
| import { EditorView, ViewUpdate, keymap, placeholder } from '@codemirror/view' | ||
| import { EditorView, EditorViewConfig, ViewUpdate, keymap, placeholder } from '@codemirror/view' | ||
| import { indentWithTab } from '@codemirror/commands' | ||
| import { indentUnit } from '@codemirror/language' | ||
| import * as CSS from 'csstype' | ||
|
|
||
| // state | ||
| export interface EditorStateCreatorOptions { | ||
| config: EditorStateConfig | ||
| onUpdate(viewUpdate: ViewUpdate): void | ||
| export interface CreateStateOptions extends EditorStateConfig { | ||
| onChange(doc: string, viewUpdate: ViewUpdate): void | ||
| onUpdate(viewUpdate: ViewUpdate): void | ||
| onFocus(viewUpdate: ViewUpdate): void | ||
| onBlur(viewUpdate: ViewUpdate): void | ||
| } | ||
| export const createState = ({ config, ...events }: EditorStateCreatorOptions): EditorState => { | ||
| const extensions = Array.isArray(config.extensions) ? config.extensions : [config.extensions] | ||
|
|
||
| export const createEditorState = ({ onUpdate, onChange, onFocus, onBlur, ...config }: CreateStateOptions) => { | ||
| return EditorState.create({ | ||
| doc: config.doc, | ||
| selection: config.selection, | ||
| extensions: [ | ||
| ...extensions, | ||
| ...(Array.isArray(config.extensions) ? config.extensions : [config.extensions]), | ||
| EditorView.updateListener.of((viewUpdate) => { | ||
| // https://discuss.codemirror.net/t/codemirror-6-proper-way-to-listen-for-changes/2395/11 | ||
| events.onUpdate(viewUpdate) | ||
| onUpdate(viewUpdate) | ||
| // doc changed | ||
| if (viewUpdate.docChanged) { | ||
| events.onChange(viewUpdate.state.doc.toString(), viewUpdate) | ||
| onChange(viewUpdate.state.doc.toString(), viewUpdate) | ||
| } | ||
| // focus state change | ||
| if (viewUpdate.focusChanged) { | ||
| viewUpdate.view.hasFocus ? events.onFocus(viewUpdate) : events.onBlur(viewUpdate) | ||
| viewUpdate.view.hasFocus ? onFocus(viewUpdate) : onBlur(viewUpdate) | ||
| } | ||
| }) | ||
| ] | ||
| }) | ||
| } | ||
|
|
||
| // doc | ||
| export const getDoc = (view: EditorView) => view.state.doc.toString() | ||
| export const setDoc = (view: EditorView, newDoc: string) => { | ||
| return view.dispatch({ | ||
| changes: { | ||
| from: 0, | ||
| to: view.state.doc.length, | ||
| insert: newDoc | ||
| } | ||
| }) | ||
| export const destroyEditorView = (view: EditorView) => view.destroy() | ||
| export const createEditorView = (config: EditorViewConfig) => { | ||
| return new EditorView({ ...config }) | ||
| } | ||
|
|
||
| // effects | ||
| export const destroy = (view: EditorView) => view.destroy() | ||
| export const focus = (view: EditorView) => view.focus() // TODO: focus on the last word | ||
|
|
||
| // https://codemirror.net/examples/config/ | ||
| // https://github.com/uiwjs/react-codemirror/blob/22cc81971a/src/useCodeMirror.ts#L144 | ||
| // https://gist.github.com/s-cork/e7104bace090702f6acbc3004228f2cb | ||
| const rerunCompartment = () => { | ||
| export const createEditorCompartment = (view: EditorView) => { | ||
| const compartment = new Compartment() | ||
| const run = (view: EditorView, extension: Extension) => { | ||
| if (compartment.get(view.state)) { | ||
| // reconfigure | ||
| view.dispatch({ effects: compartment.reconfigure(extension) }) | ||
| } else { | ||
| // inject | ||
| view.dispatch({ effects: StateEffect.appendConfig.of(compartment.of(extension)) }) | ||
| } | ||
| const run = (extension: Extension) => { | ||
| compartment.get(view.state) | ||
| ? view.dispatch({ effects: compartment.reconfigure(extension) }) // reconfigure | ||
| : view.dispatch({ effects: StateEffect.appendConfig.of(compartment.of(extension)) }) // inject | ||
| } | ||
| return { compartment, run } | ||
| } | ||
|
|
||
| // https://codemirror.net/examples/reconfigure/ | ||
| export const rerunExtension = () => rerunCompartment().run | ||
| export const toggleExtension = (extension: Extension) => { | ||
| const { compartment, run } = rerunCompartment() | ||
| return (view: EditorView, targetApply?: boolean) => { | ||
| export const createEditorExtensionToggler = (view: EditorView, extension: Extension) => { | ||
| const { compartment, run } = createEditorCompartment(view) | ||
| return (targetApply?: boolean) => { | ||
| const exExtension = compartment.get(view.state) | ||
| const apply = targetApply ?? exExtension !== extension | ||
| run(view, apply ? extension : []) | ||
| run(apply ? extension : []) | ||
| } | ||
| } | ||
|
|
||
| // extensions | ||
| export const extensions = { | ||
| placeholder: (string: string) => placeholder(string), | ||
| disable: () => [EditorView.editable.of(false), EditorState.readOnly.of(true)], | ||
| enable: () => [EditorView.editable.of(true), EditorState.readOnly.of(false)], | ||
| export const createEditorTools = (view: EditorView) => { | ||
| // UE state | ||
| const focus = () => view.focus() | ||
|
|
||
| // doc state | ||
| const getDoc = () => view.state.doc.toString() | ||
| const setDoc = (newDoc: string) => { | ||
| if (newDoc !== getDoc()) { | ||
| view.dispatch({ | ||
| changes: { | ||
| from: 0, | ||
| to: view.state.doc.length, | ||
| insert: newDoc | ||
| } | ||
| }) | ||
| } | ||
| } | ||
|
|
||
| // reconfigure extension | ||
| const { run: reExtensions } = createEditorCompartment(view) | ||
|
|
||
| // disabled editor | ||
| const toggleDisabled = createEditorExtensionToggler(view, [ | ||
| EditorView.editable.of(false), | ||
| EditorState.readOnly.of(true) | ||
| ]) | ||
|
|
||
| // https://codemirror.net/examples/tab/ | ||
| indentWithTab: () => keymap.of([indentWithTab]), | ||
| tabSize: (tabSize: number) => [EditorState.tabSize.of(tabSize), indentUnit.of(' '.repeat(tabSize))], | ||
| const toggleIndentWithTab = createEditorExtensionToggler(view, keymap.of([indentWithTab])) | ||
|
|
||
| // tab size | ||
| // https://gist.github.com/s-cork/e7104bace090702f6acbc3004228f2cb | ||
| const { run: reTabSize } = createEditorCompartment(view) | ||
| const setTabSize = (tabSize: number) => { | ||
| reTabSize([EditorState.tabSize.of(tabSize), indentUnit.of(' '.repeat(tabSize))]) | ||
| } | ||
|
|
||
| // set editor's placeholder | ||
| const { run: rePlaceholder } = createEditorCompartment(view) | ||
| const setPlaceholder = (value: string) => { | ||
| rePlaceholder(placeholder(value)) | ||
| } | ||
|
|
||
| // set style to editor element | ||
| // https://codemirror.net/examples/styling/ | ||
| style: (style: CSS.Properties) => EditorView.theme({ '&': { ...style } }) | ||
| const { run: reStyle } = createEditorCompartment(view) | ||
| const setStyle = (style: CSS.Properties = {}) => { | ||
| reStyle(EditorView.theme({ '&': { ...style } })) | ||
| } | ||
|
|
||
| return { | ||
| focus, | ||
| getDoc, | ||
| setDoc, | ||
| reExtensions, | ||
| toggleDisabled, | ||
| toggleIndentWithTab, | ||
| setTabSize, | ||
| setPlaceholder, | ||
| setStyle | ||
| } | ||
| } |
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