Carlos Florêncio
64 lines
2.3 KiB
TypeScript
64 lines
2.3 KiB
TypeScript
"use client";
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import { IconArrowBarToDown } from "@tabler/icons-react";
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import { Button } from "@kandev/ui/button";
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import { Tooltip, TooltipContent, TooltipTrigger } from "@kandev/ui/tooltip";
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import { cn } from "@/lib/utils";
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import { useAppStore } from "@/components/state-provider";
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import { useTranscriptAutoScrollEnabled } from "./use-transcript-auto-scroll-enabled";
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// Matches the icon-only top-bar buttons (e.g. Share) so this control sits
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// flush with them.
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const TOP_BAR_BUTTON_CLASS =
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"h-6 w-6 p-0 cursor-pointer text-muted-foreground hover:bg-muted/70 hover:text-foreground focus-visible:ring-1 focus-visible:ring-ring";
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type Props = {
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sessionId: string;
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};
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/**
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* Toggles whether the transcript auto-scrolls to the bottom as new messages
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* arrive. Enabled by default. Disabling freezes the current scroll position
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* (preserved across navigating away and back); re-enabling resumes
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* auto-scroll and catches the view up if the transcript progressed while
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* disabled. See message-list-native.tsx for the renderer-side behavior driven
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* by this preference.
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*
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* The icon renders dark green while enabled and reverts to the default
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* muted color when disabled — the color swap alone carries the on/off
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* signal.
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*/
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export function AutoScrollToggleButton({ sessionId }: Props) {
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const showControl = useAppStore((state) => state.userSettings.showTranscriptAutoScrollControl);
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const enabled = useTranscriptAutoScrollEnabled(sessionId);
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const setEnabled = useAppStore((state) => state.setTranscriptAutoScrollEnabled);
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if (!showControl) return null;
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const label = enabled ? "Turn off transcript auto-scroll" : "Turn on transcript auto-scroll";
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return (
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<Tooltip>
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<TooltipTrigger asChild>
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<Button
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type="button"
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variant="ghost"
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size="sm"
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onClick={() => setEnabled(sessionId, !enabled)}
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className={TOP_BAR_BUTTON_CLASS}
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aria-label={label}
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aria-pressed={enabled}
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data-testid="auto-scroll-toggle-button"
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>
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<IconArrowBarToDown
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className={cn("h-6 w-6", enabled && "text-green-600")}
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data-testid="auto-scroll-toggle-icon"
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/>
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</Button>
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</TooltipTrigger>
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<TooltipContent>{label}</TooltipContent>
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</Tooltip>
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);
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}
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