150 lines
3.3 KiB
TypeScript
150 lines
3.3 KiB
TypeScript
import { Editor } from '@tiptap/core'
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import { EditorState, Plugin, PluginKey } from 'prosemirror-state'
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import { EditorView } from 'prosemirror-view'
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import { coordsAtPos } from './helpers'
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export interface BubbleMenuPluginOptions {
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editor: Editor,
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element: HTMLElement,
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keepInBounds: boolean,
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}
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export type BubbleMenuViewOptions = BubbleMenuPluginOptions & {
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view: EditorView,
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}
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export class BubbleMenuView {
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public editor: Editor
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public element: HTMLElement
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public keepInBounds = true
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public view: EditorView
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public isActive = false
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public left = 0
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public bottom = 0
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public top = 0
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public preventHide = false
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constructor({
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editor,
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element,
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keepInBounds,
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view,
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}: BubbleMenuViewOptions) {
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this.editor = editor
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this.element = element
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this.keepInBounds = keepInBounds
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this.view = view
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this.element.addEventListener('mousedown', this.mousedownHandler, { capture: true })
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this.editor.on('focus', this.focusHandler)
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this.editor.on('blur', this.blurHandler)
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this.render()
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}
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mousedownHandler = () => {
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this.preventHide = true
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}
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focusHandler = () => {
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this.update(this.editor.view)
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}
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blurHandler = ({ event }: { event: FocusEvent }) => {
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if (this.preventHide) {
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this.preventHide = false
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return
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}
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this.hide(event)
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}
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update(view: EditorView, oldState?: EditorState) {
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const { state, composing } = view
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const { doc, selection } = state
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const docHasChanged = !oldState?.doc.eq(doc)
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const selectionHasChanged = !oldState?.selection.eq(selection)
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if (composing || (!docHasChanged && !selectionHasChanged)) {
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return
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}
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const { from, to, empty } = selection
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if (empty) {
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this.hide()
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return
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}
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const start = coordsAtPos(view, from)
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const end = coordsAtPos(view, to, true)
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const parent = this.element.offsetParent
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if (!parent) {
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this.hide()
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return
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}
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const parentBox = parent.getBoundingClientRect()
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const box = this.element.getBoundingClientRect()
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const left = (start.left + end.left) / 2 - parentBox.left
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this.left = Math.round(
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this.keepInBounds
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? Math.min(parentBox.width - box.width / 2, Math.max(left, box.width / 2))
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: left,
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)
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this.bottom = Math.round(parentBox.bottom - start.top)
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this.top = Math.round(end.bottom - parentBox.top)
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this.isActive = true
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this.render()
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}
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render() {
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Object.assign(this.element.style, {
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position: 'absolute',
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zIndex: 1000,
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visibility: this.isActive ? 'visible' : 'hidden',
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opacity: this.isActive ? 1 : 0,
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left: `${this.left}px`,
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// top: `${this.top}px`,
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bottom: `${this.bottom}px`,
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transform: 'translateX(-50%)',
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})
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}
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hide(event?: FocusEvent) {
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if (
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event?.relatedTarget
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&& this.element.parentNode?.contains(event.relatedTarget as Node)
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) {
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return
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}
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this.isActive = false
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this.render()
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}
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destroy() {
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this.element.removeEventListener('mousedown', this.mousedownHandler)
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this.editor.off('focus', this.focusHandler)
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this.editor.off('blur', this.blurHandler)
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}
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}
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export const BubbleMenuPlugin = (options: BubbleMenuPluginOptions) => {
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return new Plugin({
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key: new PluginKey('menuBubble'),
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view: view => new BubbleMenuView({ view, ...options }),
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})
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}
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