315 lines
12 KiB
PHP
315 lines
12 KiB
PHP
<?php
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$demoDirName = 'demo' . ($indpic === '1' ? '' : '-' . $indpic);
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$demoBasePath = rtrim($assetsUriPrefix, '/') . "/images/{$demoDirName}";
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$demoLocalPath = __DIR__ . "/../images/{$demoDirName}";
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$getAssetUrl = function (string $relativePath) use ($demoBasePath, $demoLocalPath): string {
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$fullPath = $demoLocalPath . '/' . ltrim($relativePath, '/');
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$version = file_exists($fullPath) ? filemtime($fullPath) : '1';
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return $demoBasePath . '/' . ltrim($relativePath, '/') . '?v=' . $version;
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};
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$labelBefore = Yii::t('app', 'До');
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$labelAfter = Yii::t('app', 'После');
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$sourceMob = $getAssetUrl('1/source_mob.avif');
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$sourceOrig = $getAssetUrl('1/source.avif');
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$resultMob = $getAssetUrl('1/result_mob.avif');
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$resultOrig = $getAssetUrl('1/result.avif');
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?>
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<div id="examples">
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<div class="image-compare" id="image-compare">
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<img src="<?= $sourceMob ?>"
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srcset="<?= $sourceMob ?> 768w, <?= $sourceOrig ?> 1696w"
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sizes="(max-width: 767.98px) 100vw, 728px"
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id="image-compare-source"
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fetchpriority="high"
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loading="eager"
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width="728"
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height="395"
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alt="<?= htmlspecialchars($labelBefore) ?>">
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<img src="<?= $resultMob ?>"
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srcset="<?= $resultMob ?> 768w, <?= $resultOrig ?> 1696w"
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sizes="(max-width: 767.98px) 100vw, 728px"
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id="image-compare-result"
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fetchpriority="high"
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loading="eager"
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width="728"
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height="395"
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alt="<?= htmlspecialchars($labelAfter) ?>">
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</div>
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<div class="image-examples">
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<div class="image-examples-label"><?= Yii::t('app', 'Примеры улучшения') ?></div>
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<div class="image-examples-list">
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<?php for ($i = 1; $i <= 5; $i++):
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$thumbMob = $getAssetUrl("{$i}/thumb_mob.avif");
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$thumbOrig = $getAssetUrl("{$i}/thumb.avif");
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?>
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<div class="image-examples-item <?= $i === 1 ? 'active' : '' ?>"
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data-index="<?= $i ?>"
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data-source="<?= $getAssetUrl("{$i}/source.avif") ?>"
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data-result="<?= $getAssetUrl("{$i}/result.avif") ?>"
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data-source-mob="<?= $getAssetUrl("{$i}/source_mob.avif") ?>"
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data-result-mob="<?= $getAssetUrl("{$i}/result_mob.avif") ?>">
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<div class="image-examples-image">
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<?php if ($i === 1): ?>
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<picture>
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<source media="(max-width: 767.98px)" srcset="<?= $thumbMob ?>">
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<img src="<?= $thumbOrig ?>" width="53" height="53" alt="Example 1">
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</picture>
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<?php else: ?>
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<picture class="deferred-picture">
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<source media="(max-width: 767.98px)" data-srcset="<?= $thumbMob ?>">
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<img data-src="<?= $thumbOrig ?>" width="53" height="53" alt="Example <?= $i ?>" class="deferred-thumb">
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</picture>
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<?php endif; ?>
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</div>
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</div>
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<?php endfor; ?>
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</div>
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</div>
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</div>
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<script>
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const examples = {
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el: document.getElementById('examples'),
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titleEl: document.getElementById('form-title'),
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hide() {
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window.scrollTo(0, 0);
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window.scrollTo({ top: 0, behavior: 'instant' });
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if (this.el) this.el.style.display = 'none';
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},
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show() {
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if (this.el) this.el.style.display = '';
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},
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setTitle(html) {
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if (this.titleEl) this.titleEl.innerHTML = html;
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}
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};
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function setupNativeCompare(element, labelBefore, labelAfter) {
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if (!element || element.classList.contains('native-icv') || element.classList.contains('icv')) return null;
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const sourceImg = element.querySelector('#image-compare-source');
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const resultImg = element.querySelector('#image-compare-result');
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if (!sourceImg || !resultImg) return null;
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element.classList.add('native-icv');
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const beforeWrap = document.createElement('div');
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beforeWrap.className = 'icv__before-wrap';
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resultImg.className = 'icv__after-img';
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const handle = document.createElement('div');
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handle.className = 'icv__handle';
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const circle = document.createElement('div');
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circle.className = 'icv__handle-circle';
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handle.appendChild(circle);
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const lblBefore = document.createElement('div');
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lblBefore.className = 'icv__label icv__label-before';
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lblBefore.textContent = labelBefore;
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const lblAfter = document.createElement('div');
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lblAfter.className = 'icv__label icv__label-after';
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lblAfter.textContent = labelAfter;
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beforeWrap.appendChild(sourceImg);
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element.appendChild(resultImg);
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element.appendChild(beforeWrap);
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element.appendChild(handle);
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element.appendChild(lblBefore);
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element.appendChild(lblAfter);
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function updateSlider(percent) {
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percent = Math.max(0, Math.min(100, percent));
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beforeWrap.style.width = percent + '%';
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handle.style.left = percent + '%';
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sourceImg.style.width = element.clientWidth + 'px';
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}
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window.addEventListener('resize', () => {
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sourceImg.style.width = element.clientWidth + 'px';
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});
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let isDragging = false;
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function getPos(e) {
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const rect = element.getBoundingClientRect();
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const clientX = e.touches ? e.touches[0].clientX : e.clientX;
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return ((clientX - rect.left) / rect.width) * 100;
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}
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function onStart(e) {
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isDragging = true;
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updateSlider(getPos(e));
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}
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function onMove(e) {
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if (!isDragging) return;
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updateSlider(getPos(e));
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}
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function onEnd() {
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isDragging = false;
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}
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element.addEventListener('mousedown', onStart);
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element.addEventListener('touchstart', onStart, { passive: true });
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window.addEventListener('mousemove', onMove);
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window.addEventListener('touchmove', onMove, { passive: true });
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window.addEventListener('mouseup', onEnd);
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window.addEventListener('touchend', onEnd);
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updateSlider(50);
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return {
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setImages(sourceUrl, resultUrl) {
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sourceImg.removeAttribute('srcset');
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resultImg.removeAttribute('srcset');
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sourceImg.src = sourceUrl;
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resultImg.src = resultUrl;
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}
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};
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}
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function initCompareViewer() {
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const element = document.getElementById('image-compare');
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const beforeTxt = '<?= addslashes($labelBefore) ?>';
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const afterTxt = '<?= addslashes($labelAfter) ?>';
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if (element && typeof ImageCompare !== 'undefined') {
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const options = {
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controlColor: "#FFFFFF",
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controlShadow: true,
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addCircle: true,
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addCircleBlur: true,
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showLabels: true,
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labelOptions: { before: beforeTxt, after: afterTxt, onHover: false },
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smoothing: true,
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smoothingAmount: 100,
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hoverStart: false,
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verticalMode: false,
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startingPoint: 50,
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fluidMode: false
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};
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window.icvInstance = new ImageCompare(element, options).mount();
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} else if (element) {
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window.nativeCompareInstance = setupNativeCompare(element, beforeTxt, afterTxt);
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}
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const exampleItems = document.querySelectorAll('.image-examples-item');
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exampleItems.forEach(item => {
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item.onclick = function() {
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const isMobile = window.innerWidth < 768;
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// На мобильном берем source_mob, на ПК — полный оригинал
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const source = (isMobile && this.getAttribute('data-source-mob'))
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? this.getAttribute('data-source-mob')
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: this.getAttribute('data-source');
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const result = (isMobile && this.getAttribute('data-result-mob'))
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? this.getAttribute('data-result-mob')
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: this.getAttribute('data-result');
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if (window.icvInstance) {
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window.icvInstance.images.start.element.removeAttribute('srcset');
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window.icvInstance.images.end.element.removeAttribute('srcset');
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window.icvInstance.images.start.element.src = source;
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window.icvInstance.images.end.element.src = result;
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} else if (window.nativeCompareInstance) {
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window.nativeCompareInstance.setImages(source, result);
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} else {
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const sourceEl = document.getElementById('image-compare-source');
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const resultEl = document.getElementById('image-compare-result');
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if (sourceEl) {
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sourceEl.removeAttribute('srcset');
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sourceEl.src = source;
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}
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if (resultEl) {
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resultEl.removeAttribute('srcset');
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resultEl.src = result;
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}
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}
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exampleItems.forEach(el => el.classList.remove('active'));
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this.classList.add('active');
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};
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});
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}
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function initStrictImagePipeline() {
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initCompareViewer();
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const preloadUrl = (url) => {
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return new Promise(resolve => {
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const img = new Image();
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img.onload = img.onerror = resolve;
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img.src = url;
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});
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};
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const deferredPics = document.querySelectorAll('.deferred-picture');
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const thumbPromises = [];
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deferredPics.forEach(pic => {
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const source = pic.querySelector('source');
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const img = pic.querySelector('img');
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if (source && source.getAttribute('data-srcset')) {
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source.srcset = source.getAttribute('data-srcset');
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}
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if (img && img.getAttribute('data-src')) {
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const p = new Promise(resolve => {
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img.onload = img.onerror = resolve;
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img.src = img.getAttribute('data-src');
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});
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thumbPromises.push(p);
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}
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});
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Promise.all(thumbPromises).then(() => {
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const queue = [2, 3, 4, 5];
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async function loadSequentially() {
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const isMobile = window.innerWidth < 768;
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for (const num of queue) {
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const item = document.querySelector(`.image-examples-item[data-index="${num}"]`);
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if (!item) continue;
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const s = (isMobile && item.getAttribute('data-source-mob'))
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? item.getAttribute('data-source-mob')
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: item.getAttribute('data-source');
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const r = (isMobile && item.getAttribute('data-result-mob'))
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? item.getAttribute('data-result-mob')
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: item.getAttribute('data-result');
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await Promise.all([preloadUrl(s), preloadUrl(r)]);
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}
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}
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if ('requestIdleCallback' in window) {
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requestIdleCallback(() => loadSequentially());
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} else {
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setTimeout(loadSequentially, 150);
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}
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});
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}
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if (document.readyState === 'loading') {
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document.addEventListener('DOMContentLoaded', initStrictImagePipeline);
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} else {
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initStrictImagePipeline();
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}
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</script>
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