Andreas Reinhold / reiniandClaude Opus 5
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Standard, centered and range sliders on native range inputs, drawn as Compose draws them, in five sizes with ticks, value labels and inset icons. Completes Phase 6. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01V9NnLxnPp8vaaurb3Z1MFy
255 lines
11 KiB
PHP
255 lines
11 KiB
PHP
<?php
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use Illuminate\Support\Facades\Blade;
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use Illuminate\Support\Facades\Route;
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use Livewire\Component;
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use Livewire\Livewire;
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/**
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* A Livewire component bound live to a slider and a range, whose values the server can also set.
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*/
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class SliderProbe extends Component
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{
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public int $volume = 30;
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/** @var array<int, int|string> */
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public array $price = [20, 80];
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public function maximise(): void
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{
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$this->volume = 90;
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}
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public function render(): string
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{
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return <<<'BLADE'
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<div style="width: 420px; padding: 4rem 2rem">
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<x-slider label="Volume" wire:model.live="volume" />
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<p>volume: <span id="volume">{{ $volume }}</span></p>
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<x-slider label="Price" wire:model.live="price" range />
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<p>price: <span id="price">{{ implode(',', $price) }}</span></p>
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<button type="button" wire:click="maximise">Maximise</button>
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</div>
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BLADE;
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}
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}
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function sliderProbe()
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{
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Livewire::component('slider-probe', SliderProbe::class);
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Route::middleware('web')->get('/slider-probe', fn () => Blade::render(<<<'BLADE'
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<!DOCTYPE html>
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<html>
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<head>
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<x-theme-script />
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@vite(config('livewire-material.showcase.vite'))
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@livewireStyles
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</head>
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<body class="bg-surface">
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<livewire:slider-probe />
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@livewireScripts
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</body>
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</html>
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BLADE));
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return visit('/slider-probe')->waitForEvent('networkidle')
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->assertScript("document.readyState === 'complete' && typeof window.Alpine !== 'undefined' && typeof window.Livewire !== 'undefined'");
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}
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function sliderShowcase()
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{
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return visit('/material')->waitForEvent('networkidle')
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->assertScript("document.readyState === 'complete' && typeof window.Alpine !== 'undefined' && typeof window.Livewire !== 'undefined'");
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}
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/**
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* A script run against the first slider labelled `$label`, scrolled into view. In scope: `root`
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* (the element with x-data), `inputs`, `width` (the track's), `left(selector)` (a drawn part's
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* position), `segment(name)` (a track segment's {from, to}, or null while hidden), `near()`,
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* `pause(ms)` and `pointer(type, fraction)`, which sends a mouse pointer event at that fraction of
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* the track. Pest retries a failing assertion: scripts that change something go through
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* `script()`, and the assertions after them only read.
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*/
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function onSlider(string $label, string $body): string
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{
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return <<<JS
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(async () => {
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const root = [...document.querySelectorAll('[data-slider]')]
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.find((slider) => slider.parentElement.querySelector(':scope > label, :scope > span')?.textContent.trim() === '{$label}')
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root.scrollIntoView({ block: 'center' })
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const inputs = [...root.querySelectorAll('input[type="range"]')]
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const width = root.clientWidth - 4
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const pause = (ms) => new Promise((resolve) => setTimeout(resolve, ms))
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const near = (a, b, tolerance = 1) => Math.abs(a - b) <= tolerance
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const left = (selector) => Number.parseFloat(root.querySelector(selector).style.left)
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const segment = (name) => {
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const element = root.querySelector(`[data-segment="\${name}"]`)
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const from = Number.parseFloat(element.style.left)
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return element.hidden ? null : { from, to: from + Number.parseFloat(element.style.width) }
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}
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const pointer = (type, fraction) => {
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const box = root.getBoundingClientRect()
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const target = type === 'pointerdown' ? root : window
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target.dispatchEvent(new PointerEvent(type, { bubbles: true, cancelable: true, clientX: box.left + 2 + width * fraction, clientY: box.top + box.height / 2, button: 0, pointerId: 1, pointerType: 'mouse' }))
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}
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{$body}
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})()
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JS;
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}
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it('moves with the keyboard, and the drawing follows', function () {
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$page = sliderShowcase()->assertNoJavaScriptErrors();
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$page->script(onSlider('Volume', 'inputs[0].focus()'));
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$page->keys(':focus', ['ArrowRight', 'ArrowRight'])
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->assertScript(onSlider('Volume', <<<'JS'
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return inputs[0].value === '42'
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&& near(left('[data-handle="start"]'), width * 0.42)
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&& near(segment('active').to, width * 0.42 - 8)
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&& near(segment('end').from, width * 0.42 + 8)
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&& root.querySelector('[data-handle="start"]').hasAttribute('data-focused')
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&& root.querySelector('[data-value-label]').textContent === '42'
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JS));
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$page->keys(':focus', 'PageUp')
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->assertScript(onSlider('Volume', "return inputs[0].value === '52' && near(left('[data-handle=\"start\"]'), width * 0.52)"));
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$page->keys(':focus', 'End')
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->assertScript(onSlider('Volume', "return inputs[0].value === '100' && segment('end') === null && ! root.querySelector('[data-stop=\"end\"]').checkVisibility()"));
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$page->keys(':focus', 'Home')
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->assertScript(onSlider('Volume', "return inputs[0].value === '0' && segment('active') === null && near(segment('end').from, 8)"));
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});
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it('follows a pointer drag with a narrowed handle and its value label', function () {
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$page = sliderShowcase();
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$page->script(onSlider('Volume', "pointer('pointerdown', 0.4); pointer('pointermove', 0.75)"));
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$page->assertScript(onSlider('Volume', <<<'JS'
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await pause(450)
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const thumb = root.querySelector('[data-handle="start"]')
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const label = thumb.querySelector('[data-value-label]')
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return inputs[0].value === '75'
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&& label.textContent === '75'
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&& getComputedStyle(label).opacity === '1'
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&& thumb.hasAttribute('data-pressed')
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&& thumb.firstElementChild.offsetWidth === 2
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&& near(left('[data-handle="start"]'), width * 0.75)
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&& document.activeElement === inputs[0]
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JS));
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$page->script(onSlider('Volume', "window.__changed = 0; inputs[0].addEventListener('change', () => window.__changed++); pointer('pointerup', 0.75)"));
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$page->assertScript(onSlider('Volume', <<<'JS'
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await pause(450)
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const thumb = root.querySelector('[data-handle="start"]')
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return inputs[0].value === '75'
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&& window.__changed === 1
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&& ! thumb.hasAttribute('data-pressed')
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&& ! thumb.hasAttribute('data-focused')
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&& thumb.firstElementChild.offsetWidth === 4
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&& getComputedStyle(thumb.querySelector('[data-value-label]')).opacity === '0'
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JS));
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});
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it('keeps a range\'s handles from crossing, by pointer and by keyboard', function () {
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$page = sliderShowcase();
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// The start handle, from 20 dragged past the end at 60, stops on it.
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$page->script(onSlider('Price', "pointer('pointerdown', 0.2); pointer('pointermove', 0.9); pointer('pointerup', 0.9)"));
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$page->assertScript(onSlider('Price', <<<'JS'
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return inputs[0].value === '60' && inputs[1].value === '60'
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&& near(left('[data-handle="start"]'), left('[data-handle="end"]'))
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&& segment('active') === null
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JS));
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$page->script(onSlider('Price', 'inputs[1].focus()'));
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$page->keys(':focus', 'Home')
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->assertScript(onSlider('Price', "return inputs[0].value === '60' && inputs[1].value === '60'"));
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// Bound with x-model to an array: the model never holds crossed ends either.
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$page->script(onSlider('Bound price', 'inputs[0].focus()'));
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$page->keys(':focus', 'End')
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->assertScript("document.querySelector('[data-bound=\"price\"]').textContent === '[300,300]'");
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});
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it('fills a centred slider from the middle', function () {
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$page = sliderShowcase();
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$page->assertScript(onSlider('Balance', <<<'JS'
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const handle = left('[data-handle="start"]')
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return inputs[0].value === '15'
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&& near(handle, width * 0.65)
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&& near(segment('start').to, width / 2 - 6)
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&& near(segment('active').from, width / 2)
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&& near(segment('active').to, handle - 8)
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&& near(segment('end').from, handle + 8)
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JS));
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$page->script(onSlider('Balance', 'inputs[0].focus()'));
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$page->keys(':focus', 'Home')
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->assertScript(onSlider('Balance', <<<'JS'
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return inputs[0].value === '-50'
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&& segment('start') === null
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&& near(segment('active').from, 8)
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&& near(segment('active').to, width / 2)
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&& near(segment('end').from, width / 2 + 6)
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JS));
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});
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it('follows a value x-model sets from outside', function () {
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$page = sliderShowcase();
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$page->script("[...document.querySelectorAll('#sliders button')].find((button) => button.textContent.trim() === 'Set 80').click()");
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$page->assertScript(onSlider('Bound volume', "return inputs[0].value === '80' && near(left('[data-handle=\"start\"]'), width * 0.8)"));
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});
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it('sends live values to Livewire, is not moved back by a render mid-drag, and moves when the server sets a value', function () {
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$page = sliderProbe();
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$page->script(onSlider('Volume', 'inputs[0].focus()'));
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$page->keys(':focus', ['ArrowRight', 'ArrowRight', 'ArrowRight'])
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->assertSeeIn('#volume', '33');
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// A drag that outruns a round trip: while the request for 50 is on its way, the handle moves
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// on to 70, and the render for 50 must not pull it back.
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$page->script(onSlider('Volume', <<<'JS'
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window.__renders = 0
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let moved = false
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window.Livewire.hook('commit', ({ succeed }) => {
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if (! moved) {
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moved = true
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queueMicrotask(() => pointer('pointermove', 0.7))
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}
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succeed(() => window.__renders++)
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})
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pointer('pointerdown', 0.5)
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JS));
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// Both round trips back: the handle is where it was dragged, and so is the property.
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$page->assertScript(onSlider('Volume', <<<'JS'
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return window.__renders >= 2 && inputs[0].value === '70' && near(left('[data-handle="start"]'), width * 0.7)
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JS))
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->assertSeeIn('#volume', '70');
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$page->script(onSlider('Volume', "pointer('pointerup', 0.7)"));
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$page->click('button:has-text("Maximise")')
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->assertSeeIn('#volume', '90')
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->assertScript(onSlider('Volume', "return inputs[0].value === '90' && near(left('[data-handle=\"start\"]'), width * 0.9) && root.querySelector('[data-value-label]').textContent === '90'"));
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$page->script(onSlider('Price', 'inputs[1].focus()'));
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$page->keys(':focus', 'ArrowLeft')
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->assertSeeIn('#price', '20,79');
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});
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