Brooklyn Nicholson
da933bf279
Click-through decides whether to swallow the mouse by hit-testing the document
under the cursor, and it learns where the cursor is from mousemove. Those keep
arriving while the window ignores the mouse only because of
`setIgnoreMouseEvents(true, { forward: true })`, and `forward` is
`@platform darwin,win32`. On Linux the moves stop the instant the HUD turns
click-through, so it never sees the pointer return to the bar: the bar is
visible, and clicking it hits whatever is behind.
Main can still see the cursor, so on Linux it polls and pushes the position to
the renderer, which runs its usual hit test on it. The decision and its rules
stay in one place — only the courier for that one input changes — and off-window
is sent as null, which is already how the renderer hands the mouse back.
51 lines
1.8 KiB
TypeScript
51 lines
1.8 KiB
TypeScript
/**
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* Unit tests for the HUD's Linux cursor conversion. These cover the two things
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* that decide whether the bar is clickable: landing on the right point, and
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* admitting when the cursor has left.
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*/
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import assert from 'node:assert/strict'
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import { test } from 'vitest'
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import { cursorPointInWindow } from './hud-cursor'
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// A HUD parked 300px right and 200px down, 620×320 as it is created.
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const BOUNDS = { x: 300, y: 200, width: 620, height: 320 }
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test('screen cursor becomes a point relative to the window', () => {
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assert.deepEqual(cursorPointInWindow({ x: 300, y: 200 }, BOUNDS, 1), { x: 0, y: 0 })
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assert.deepEqual(cursorPointInWindow({ x: 460, y: 240 }, BOUNDS, 1), { x: 160, y: 40 })
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})
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test('a zoomed page reports CSS pixels, not device-independent ones', () => {
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// At 0.9 the page is wider than the window in CSS pixels, so a point half way
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// across the window is further than half way across the document.
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assert.deepEqual(cursorPointInWindow({ x: 610, y: 380 }, BOUNDS, 0.9), {
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x: 310 / 0.9,
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y: 180 / 0.9
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})
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})
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test('a cursor outside the window is reported as lost', () => {
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for (const outside of [
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{ x: 299, y: 300 },
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{ x: 500, y: 199 },
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{ x: 920, y: 300 },
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{ x: 500, y: 520 }
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]) {
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assert.equal(cursorPointInWindow(outside, BOUNDS, 1), null)
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}
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})
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test('the far edges belong to the window on entry, not on exit', () => {
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assert.deepEqual(cursorPointInWindow({ x: 919, y: 519 }, BOUNDS, 1), { x: 619, y: 319 })
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assert.equal(cursorPointInWindow({ x: 920, y: 520 }, BOUNDS, 1), null)
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})
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test('a nonsense zoom factor is treated as unzoomed rather than poisoning the point', () => {
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for (const bad of [0, -1, Number.NaN, Number.POSITIVE_INFINITY]) {
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assert.deepEqual(cursorPointInWindow({ x: 460, y: 240 }, BOUNDS, bad), { x: 160, y: 40 })
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}
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})
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