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feat(lastcode): add adjustable larger scrollbars #190
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| import { describe, expect, it, vi } from "vite-plus/test"; | ||
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| import { applyScrollbarAppearance } from "./scrollbarAppearance"; | ||
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| describe("applyScrollbarAppearance", () => { | ||
| it("sets the thumb, margin, and total hit-lane sizes", () => { | ||
| const { root, setProperty, toggleAttribute } = makeRoot(); | ||
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| applyScrollbarAppearance(root, { enabled: true, width: 9, margin: 5 }); | ||
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| expect(toggleAttribute).toHaveBeenCalledWith("data-larger-scrollbars", true); | ||
| expect(setProperty).toHaveBeenCalledWith("--app-scrollbar-width", "9px"); | ||
| expect(setProperty).toHaveBeenCalledWith("--app-scrollbar-margin", "5px"); | ||
| expect(setProperty).toHaveBeenCalledWith("--app-scrollbar-lane-width", "14px"); | ||
| expect(setProperty).toHaveBeenCalledWith("--app-native-scrollbar-margin", "5px"); | ||
| expect(setProperty).toHaveBeenCalledWith("--app-scrollbar-thumb-inset", "0px"); | ||
| }); | ||
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| it("restores the stylesheet defaults when disabled", () => { | ||
| const { root, removeProperty, toggleAttribute } = makeRoot(); | ||
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| applyScrollbarAppearance(root, { enabled: false, width: 12, margin: 6 }); | ||
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| expect(toggleAttribute).toHaveBeenCalledWith("data-larger-scrollbars", false); | ||
| expect(removeProperty).toHaveBeenCalledWith("--app-scrollbar-width"); | ||
| expect(removeProperty).toHaveBeenCalledWith("--app-scrollbar-margin"); | ||
| expect(removeProperty).toHaveBeenCalledWith("--app-scrollbar-lane-width"); | ||
| expect(removeProperty).toHaveBeenCalledWith("--app-native-scrollbar-margin"); | ||
| expect(removeProperty).toHaveBeenCalledWith("--app-scrollbar-thumb-inset"); | ||
| }); | ||
| }); | ||
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| function makeRoot() { | ||
| const setProperty = vi.fn(); | ||
| const removeProperty = vi.fn(); | ||
| const toggleAttribute = vi.fn(); | ||
| return { | ||
| root: { | ||
| style: { setProperty, removeProperty }, | ||
| toggleAttribute, | ||
| } as unknown as HTMLElement, | ||
| setProperty, | ||
| removeProperty, | ||
| toggleAttribute, | ||
| }; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,27 @@ | ||
| import type { ScrollbarMargin, ScrollbarWidth } from "@t3tools/contracts/settings"; | ||
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| export function applyScrollbarAppearance( | ||
| root: HTMLElement, | ||
| options: { | ||
| enabled: boolean; | ||
| width: ScrollbarWidth; | ||
| margin: ScrollbarMargin; | ||
| }, | ||
| ): void { | ||
| root.toggleAttribute("data-larger-scrollbars", options.enabled); | ||
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| if (!options.enabled) { | ||
| root.style.removeProperty("--app-scrollbar-width"); | ||
| root.style.removeProperty("--app-scrollbar-margin"); | ||
| root.style.removeProperty("--app-scrollbar-lane-width"); | ||
| root.style.removeProperty("--app-native-scrollbar-margin"); | ||
| root.style.removeProperty("--app-scrollbar-thumb-inset"); | ||
| return; | ||
| } | ||
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| root.style.setProperty("--app-scrollbar-width", `${options.width}px`); | ||
| root.style.setProperty("--app-scrollbar-margin", `${options.margin}px`); | ||
| root.style.setProperty("--app-scrollbar-lane-width", `${options.width + options.margin}px`); | ||
| root.style.setProperty("--app-native-scrollbar-margin", `${options.margin}px`); | ||
| root.style.setProperty("--app-scrollbar-thumb-inset", "0px"); | ||
| } |
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