Introduce keyboard (Up/Down/Enter/Escape) selection for slash commands #4402
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,100 @@ | ||
| import System from "@/models/system"; | ||
| import debounce from "lodash.debounce"; | ||
| import { useEffect, useRef, useState } from "react"; | ||
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|
||
| export function useSlashCommands({ sendCommand }) { | ||
| const [showSlashCommand, setShowSlashCommand] = useState(false); | ||
| const [highlightedSlashCommand, setHighlightedSlashCommand] = useState(1); | ||
| const [slashCommands, setSlashCommands] = useState([]); | ||
| // Ref to the textarea element, this is needed to apply focus to the textarea when slash commands are triggered by clicking the slash command button | ||
| const textareaRef = useRef(null); | ||
|
|
||
| // Check for slash command to show slash commands | ||
| function checkForSlash(e) { | ||
| const input = e.target.value; | ||
| if (input === "/") { | ||
| setShowSlashCommand(true); | ||
| setHighlightedSlashCommand(0); // Start with reset command highlighted | ||
| } | ||
| if (showSlashCommand) setShowSlashCommand(false); | ||
| return; | ||
| } | ||
| const watchForSlash = debounce(checkForSlash, 300); | ||
| const fetchSlashCommands = async () => { | ||
| const presets = await System.getSlashCommandPresets(); | ||
| setSlashCommands(presets); | ||
| }; | ||
|
|
||
| useEffect(() => { | ||
| fetchSlashCommands(); | ||
| }, []); | ||
|
|
||
| // Focus the textarea when slash commands are shown, this is needed to enable keyboard navigation | ||
| useEffect(() => { | ||
| if (showSlashCommand) { | ||
| if (textareaRef.current) { | ||
| textareaRef.current.focus(); | ||
| } | ||
| } | ||
| }, [showSlashCommand]); | ||
|
|
||
| // Handle key down events for slash command navigation and selection | ||
| function handleKeyDown(e) { | ||
| // Only handle arrow keys when slash commands are showing | ||
| if (!showSlashCommand) return; | ||
|
|
||
| if (e.key === "ArrowUp") { | ||
| e.preventDefault(); | ||
| setHighlightedSlashCommand((prev) => { | ||
| if (prev <= 0) { | ||
| return slashCommands.length; | ||
| } | ||
| return prev - 1; | ||
| }); | ||
| } | ||
| if (e.key === "ArrowDown") { | ||
| e.preventDefault(); | ||
| setHighlightedSlashCommand((prev) => { | ||
| if (prev >= slashCommands.length) { | ||
| return 0; | ||
| } | ||
| return prev + 1; | ||
| }); | ||
| } | ||
| if (e.key === "Enter" && showSlashCommand) { | ||
| e.preventDefault(); | ||
|
|
||
| if (highlightedSlashCommand === 0) { | ||
| setShowSlashCommand(false); | ||
| sendCommand({ text: "/reset", autoSubmit: true }); | ||
| // Reset command is selected | ||
| return; | ||
| } | ||
|
|
||
| // Check if it's a preset selection (index 1 and above) | ||
| const presetIndex = highlightedSlashCommand - 1; | ||
| if (presetIndex >= 0 && presetIndex < slashCommands.length) { | ||
| const preset = slashCommands[presetIndex]; | ||
| setShowSlashCommand(false); | ||
| sendCommand({ text: `${preset.command} ` }); | ||
| textareaRef?.current?.focus(); | ||
| } | ||
| } | ||
|
|
||
| if (e.key === "Escape" && showSlashCommand) { | ||
| e.preventDefault(); | ||
| setShowSlashCommand(false); | ||
| } | ||
| } | ||
| return { | ||
| slashCommands, | ||
| setSlashCommands, | ||
| showSlashCommand, | ||
| setShowSlashCommand, | ||
| highlightedSlashCommand, | ||
| setHighlightedSlashCommand, | ||
| watchForSlash, | ||
| handleKeyDown, | ||
| textareaRef, | ||
| }; | ||
| } |
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Can we not do highlight operation with
preset.id?