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Add hyperlink creation feature (#332)
* Add useToolBar hook * Add hyperlink creation feature * Add text selection check before inserting hyperlink * Refactor `useToolBar` & extract `checkAndAddFormat` functon to a separate utility file * Change valid URL check regular expression to `validator` library * Fix missing validator package installation
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,60 @@ | ||
| import { useCallback, useState } from "react"; | ||
| import { FormatType, ToolBarState, useFormatUtils } from "./useFormatUtils"; | ||
| import { ViewUpdate } from "@codemirror/view"; | ||
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| export const useToolBar = () => { | ||
| const [toolBarState, setToolBarState] = useState<ToolBarState>({ | ||
| show: false, | ||
| position: { top: 0, left: 0 }, | ||
| selectedFormats: new Set<FormatType>(), | ||
| }); | ||
| const { getFormatMarkerLength, checkAndAddFormat } = useFormatUtils(); | ||
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|
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| const updateFormatBar = useCallback( | ||
| (update: ViewUpdate) => { | ||
| const { state, view } = update; | ||
| const selection = state.selection.main; | ||
|
|
||
| if (selection.empty) { | ||
| setToolBarState((prev) => ({ | ||
| ...prev, | ||
| show: false, | ||
| selectedFormats: new Set(), | ||
| })); | ||
| return; | ||
| } | ||
|
|
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| const coords = view.coordsAtPos(selection.from); | ||
| if (!coords) return; | ||
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| const maxLength = getFormatMarkerLength(view.state, selection.from); | ||
| const selectedTextStart = state.sliceDoc(selection.from - maxLength, selection.from); | ||
| const selectedTextEnd = state.sliceDoc(selection.to, selection.to + maxLength); | ||
| const formats = new Set<FormatType>(); | ||
| const formatChecks = [ | ||
| { marker: "**", format: FormatType.BOLD }, | ||
| { marker: "_", format: FormatType.ITALIC }, | ||
| { marker: "`", format: FormatType.CODE }, | ||
| { marker: "~~", format: FormatType.STRIKETHROUGH }, | ||
| ]; | ||
|
|
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| formatChecks.forEach(({ marker, format }) => { | ||
| checkAndAddFormat(selectedTextStart, selectedTextEnd, marker, format, formats); | ||
| }); | ||
|
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| // TODO: Modify the rendering method so that it is not affected by the size of the Toolbar | ||
| setToolBarState((prev) => ({ | ||
| ...prev, | ||
| show: true, | ||
| position: { | ||
| top: coords.top - 5, | ||
| left: coords.left, | ||
| }, | ||
| selectedFormats: formats, | ||
| })); | ||
| }, | ||
| [getFormatMarkerLength, checkAndAddFormat] | ||
| ); | ||
|
|
||
| return { toolBarState, setToolBarState, updateFormatBar }; | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,45 @@ | ||
| import { EditorView } from "codemirror"; | ||
| import validator from "validator"; | ||
| import { CodePairDocType } from "../store/editorSlice"; | ||
|
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| const isValidUrl = (url: string) => { | ||
| return validator.isURL(url); | ||
| }; | ||
|
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| const insertLinkToEditor = (url: string, view: EditorView, doc: CodePairDocType) => { | ||
| const { from, to } = view.state.selection.main; | ||
| const selectedText = view.state.sliceDoc(from, to); | ||
| const insert = `[${selectedText}](${url})`; | ||
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| doc.update((root, presence) => { | ||
| root.content.edit(from, to, insert); | ||
| presence.set({ | ||
| selection: root.content.indexRangeToPosRange([ | ||
| from + insert.length, | ||
| from + insert.length, | ||
| ]), | ||
| }); | ||
| }); | ||
|
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| view.dispatch({ | ||
| changes: { from, to, insert }, | ||
| selection: { | ||
| anchor: from + insert.length, | ||
| }, | ||
| }); | ||
| }; | ||
|
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| export const urlHyperlinkInserter = (doc: CodePairDocType) => { | ||
| return EditorView.domEventHandlers({ | ||
| paste(event, view) { | ||
| const url = event.clipboardData?.getData("text/plain"); | ||
| if (!url || !isValidUrl(url)) return; | ||
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| const { from, to } = view.state.selection.main; | ||
| if (from === to) return; | ||
|
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| insertLinkToEditor(url, view, doc); | ||
| event.preventDefault(); | ||
| }, | ||
| }); | ||
| }; |