Meekdai
GitHub
commit
f733212c4b
@ -1,5 +1,4 @@
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(function() {
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// 灯箱插件
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class Lightbox {
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constructor(options = {}) {
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this.options = Object.assign({
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@ -13,11 +12,11 @@
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this.images = [];
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this.currentIndex = 0;
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this.isOpen = false;
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this.isZoomed = false;
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this.zoomLevel = 1;
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this.touchStartX = 0;
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this.touchEndX = 0;
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this.wheelTimer = null;
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this.preloadedImages = {};
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this.init();
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}
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@ -37,7 +36,7 @@
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left: 0;
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width: 100%;
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height: 100%;
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background-color: rgba(255, 255, 255, 0.9);
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background-color: transparent;
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backdrop-filter: blur(5px);
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display: flex;
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justify-content: center;
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@ -45,9 +44,11 @@
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opacity: 0;
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transition: opacity ${this.options.animationDuration}ms ease;
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pointer-events: none;
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z-index: 10000;
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}
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.lb-lightbox-overlay.active {
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pointer-events: auto;
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opacity: 1;
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}
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.lb-lightbox-content-wrapper {
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position: relative;
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@ -58,103 +59,70 @@
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height: 100%;
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}
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.lb-lightbox-container {
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max-width: 90%;
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max-height: 90%;
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width: 100%;
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height: 100%;
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position: relative;
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transition: transform ${this.options.animationDuration}ms cubic-bezier(0.25, 0.1, 0.25, 1);
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overflow: hidden;
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}
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.lb-lightbox-image-wrapper {
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display: flex;
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justify-content: center;
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align-items: center;
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height: 100%;
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overflow: hidden;
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position: absolute;
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top: 0;
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left: 0;
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right: 0;
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bottom: 0;
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z-index: 1;
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}
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.lb-lightbox-image {
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max-width: 100%;
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max-height: 100%;
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height: auto;
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object-fit: contain;
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border-radius: 8px;
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box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
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border-radius: 16px;
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box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
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transition: transform ${this.options.animationDuration}ms cubic-bezier(0.25, 0.1, 0.25, 1), opacity ${this.options.animationDuration}ms ease;
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opacity: 0;
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}
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.lb-lightbox-nav {
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.lb-lightbox-nav, .lb-lightbox-close {
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position: absolute;
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top: 50%;
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transform: translateY(-50%);
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background-color: rgba(255, 255, 255, 0.8);
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color: #333;
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border: none;
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border-radius: 50%;
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cursor: pointer;
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box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
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width: 50px;
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height: 50px;
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font-size: 24px;
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display: flex;
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justify-content: center;
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align-items: center;
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cursor: pointer;
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transition: all 0.3s ease;
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box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
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font-size: 30px;
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z-index: 2;
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transition: transform 0.2s ease;
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}
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.lb-lightbox-nav:hover {
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background-color: rgba(255, 255, 255, 1);
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transform: translateY(-50%) scale(1.1);
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}
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.lb-lightbox-nav:active {
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transform: translateY(-50%) scale(0.9);
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transform: scale(1.1);
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}
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.lb-lightbox-prev {
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left: 20px;
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top: calc(50% - 25px);
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}
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.lb-lightbox-next {
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right: 20px;
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top: calc(50% - 25px);
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}
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.lb-lightbox-close {
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position: absolute;
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top: 20px;
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right: 20px;
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background-color: rgba(255, 255, 255, 0.8);
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color: #333;
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border: none;
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border-radius: 50%;
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width: 40px;
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height: 40px;
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font-size: 24px;
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display: flex;
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justify-content: center;
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align-items: center;
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cursor: pointer;
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transition: all 0.3s ease;
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box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
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}
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.lb-lightbox-close:hover {
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background-color: rgba(255, 255, 255, 1);
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transform: scale(1.1);
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}
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.lb-lightbox-close:active {
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transform: scale(0.9);
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}
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@media (max-width: 768px) {
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.lb-lightbox-nav {
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.lb-lightbox-nav, .lb-lightbox-close {
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width: 40px;
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height: 40px;
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font-size: 20px;
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}
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.lb-lightbox-close {
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width: 35px;
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height: 35px;
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font-size: 20px;
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}
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}
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@media (prefers-color-scheme: dark) {
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.lb-lightbox-overlay {
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background-color: rgba(0, 0, 0, 0.9);
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}
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.lb-lightbox-nav,
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.lb-lightbox-close {
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background-color: rgba(50, 50, 50, 0.8);
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color: #fff;
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}
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.lb-lightbox-nav:hover,
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.lb-lightbox-close:hover {
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background-color: rgba(70, 70, 70, 1);
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}
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.lb-lightbox-image {
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box-shadow: 0 10px 30px rgba(255, 255, 255, 0.1);
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}
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}
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`;
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document.head.appendChild(style);
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@ -163,7 +131,6 @@
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createLightbox() {
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this.overlay = document.createElement('div');
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this.overlay.className = 'lb-lightbox-overlay';
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this.overlay.style.zIndex = '-1';
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this.contentWrapper = document.createElement('div');
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this.contentWrapper.className = 'lb-lightbox-content-wrapper';
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@ -171,6 +138,9 @@
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this.container = document.createElement('div');
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this.container.className = 'lb-lightbox-container';
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this.imageWrapper = document.createElement('div');
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this.imageWrapper.className = 'lb-lightbox-image-wrapper';
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this.image = document.createElement('img');
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this.image.className = 'lb-lightbox-image';
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@ -186,15 +156,17 @@
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this.closeButton.className = 'lb-lightbox-close';
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this.closeButton.innerHTML = '×';
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this.container.appendChild(this.image);
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this.imageWrapper.appendChild(this.image);
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this.container.appendChild(this.imageWrapper);
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this.contentWrapper.appendChild(this.container);
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this.contentWrapper.appendChild(this.prevButton);
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this.contentWrapper.appendChild(this.nextButton);
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this.contentWrapper.appendChild(this.closeButton);
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this.overlay.appendChild(this.contentWrapper);
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document.body.appendChild(this.overlay);
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this.closeButton.addEventListener('click', this.close.bind(this));
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}
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bindEvents() {
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@ -215,7 +187,7 @@
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if (clickedImage && !this.isOpen) {
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event.preventDefault();
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event.stopPropagation();
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this.images = Array.from(document.querySelectorAll('.markdown-body img'));
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this.images = Array.from(document.querySelectorAll('.markdown-body img, table img'));
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this.currentIndex = this.images.indexOf(clickedImage);
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this.open();
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}
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@ -224,17 +196,11 @@
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handleOverlayClick(event) {
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if (event.target === this.overlay && this.options.closeOnOverlayClick) {
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this.close();
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} else if (!event.target.closest('.lb-lightbox-container')) {
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const elementBelow = document.elementFromPoint(event.clientX, event.clientY);
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if (elementBelow) {
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elementBelow.click();
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}
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}
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}
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handleKeyDown(event) {
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if (!this.isOpen) return;
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switch (event.key) {
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case 'ArrowLeft':
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this.showPreviousImage();
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@ -250,16 +216,22 @@
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handleWheel(event) {
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event.preventDefault();
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clearTimeout(this.wheelTimer);
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this.wheelTimer = setTimeout(() => {
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const delta = Math.sign(event.deltaY);
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if (delta > 0) {
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this.showNextImage();
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} else {
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this.showPreviousImage();
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}
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}, 50);
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if (event.ctrlKey) {
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this.zoomLevel += event.deltaY > 0 ? -0.1 : 0.1;
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this.zoomLevel = Math.max(1, this.zoomLevel);
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this.image.style.transform = `scale(${this.zoomLevel})`;
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} else {
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clearTimeout(this.wheelTimer);
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this.wheelTimer = setTimeout(() => {
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const delta = Math.sign(event.deltaY);
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if (delta > 0) {
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this.showNextImage();
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} else {
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this.showPreviousImage();
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}
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}, 50);
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}
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}
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handleTouchStart(event) {
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@ -273,20 +245,14 @@
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handleTouchEnd() {
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const difference = this.touchStartX - this.touchEndX;
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if (Math.abs(difference) > 50) {
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if (difference > 0) {
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this.showNextImage();
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} else {
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this.showPreviousImage();
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}
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difference > 0 ? this.showNextImage() : this.showPreviousImage();
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}
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}
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open() {
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this.isOpen = true;
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this.overlay.style.zIndex = '10000';
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this.overlay.classList.add('active');
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this.showImage();
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this.overlay.style.opacity = '1';
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this.showImage(this.images[this.currentIndex].src);
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document.body.style.overflow = 'hidden';
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if (typeof this.options.onOpen === 'function') {
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this.options.onOpen();
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@ -294,75 +260,97 @@
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}
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close() {
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this.isOpen = false;
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this.overlay.style.opacity = '0';
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this.overlay.classList.remove('active');
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document.body.style.overflow = '';
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setTimeout(() => {
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this.image.style.transform = '';
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this.zoomLevel = 1;
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this.isZoomed = false;
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this.overlay.style.zIndex = '-1';
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}, this.options.animationDuration);
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this.overlay.classList.remove('active');
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this.isOpen = false;
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this.clearPreloadedImages();
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if (typeof this.options.onClose === 'function') {
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this.options.onClose();
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}
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this.unbindEvents();
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}
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showPreviousImage() {
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if (this.currentIndex > 0) {
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this.currentIndex--;
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this.showImage();
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this.showImage(this.images[this.currentIndex].src);
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this.resetButtonScale(this.prevButton);
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}
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}
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showNextImage() {
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if (this.currentIndex < this.images.length - 1) {
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this.currentIndex++;
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this.showImage();
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this.showImage(this.images[this.currentIndex].src);
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this.resetButtonScale(this.nextButton);
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}
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}
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showImage() {
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const imgSrc = this.images[this.currentIndex].src;
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this.image.style.opacity = '0';
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resetButtonScale(button) {
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button.style.transform = 'scale(1.1)';
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setTimeout(() => {
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button.style.transform = 'scale(1)';
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}, 200);
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}
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showImage(imgSrc) {
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const newImage = new Image();
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newImage.src = imgSrc;
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newImage.onload = () => {
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this.image.style.transition = `opacity ${this.options.animationDuration}ms ease`;
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this.image.style.transform = 'scale(1)';
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this.image.src = imgSrc;
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this.image.style.opacity = '1';
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this.preloadImages();
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this.prevButton.style.display = this.currentIndex === 0 ? 'none' : 'block';
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this.nextButton.style.display = this.currentIndex === this.images.length - 1 ? 'none' : 'block';
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};
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this.prevButton.style.display = this.currentIndex > 0 ? '' : 'none';
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this.nextButton.style.display = this.currentIndex < this.images.length - 1 ? '' : 'none';
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if (typeof this.options.onNavigate === 'function') {
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this.options.onNavigate(this.currentIndex);
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}
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this.preloadImages();
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}
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zoom(factor) {
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this.zoomLevel += factor;
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this.zoomLevel = Math.max(1, Math.min(this.zoomLevel, 3));
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this.image.style.transform = `scale(${this.zoomLevel})`;
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this.isZoomed = this.zoomLevel !== 1;
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newImage.onerror = () => {
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console.error('Failed to load image:', imgSrc);
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};
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}
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preloadImages() {
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const preloadNext = (this.currentIndex + 1) % this.images.length;
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const preloadPrev = (this.currentIndex - 1 + this.images.length) % this.images.length;
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new Image().src = this.images[preloadNext].src;
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new Image().src = this.images[preloadPrev].src;
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const preloadNext = this.currentIndex + 1;
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const preloadPrev = this.currentIndex - 1;
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if (preloadNext < this.images.length) {
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this.preloadedImages[preloadNext] = new Image();
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this.preloadedImages[preloadNext].src = this.images[preloadNext].src;
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}
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if (preloadPrev >= 0) {
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this.preloadedImages[preloadPrev] = new Image();
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this.preloadedImages[preloadPrev].src = this.images[preloadPrev].src;
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}
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}
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clearPreloadedImages() {
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Object.keys(this.preloadedImages).forEach(key => {
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this.preloadedImages[key].src = '';
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});
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this.preloadedImages = {};
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}
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unbindEvents() {
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document.removeEventListener('click', this.handleImageClick.bind(this), true);
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this.overlay.removeEventListener('click', this.handleOverlayClick.bind(this));
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this.prevButton.removeEventListener('click', this.showPreviousImage.bind(this));
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this.nextButton.removeEventListener('click', this.showNextImage.bind(this));
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this.closeButton.removeEventListener('click', this.close.bind(this));
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document.removeEventListener('keydown', this.handleKeyDown.bind(this));
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this.overlay.removeEventListener('wheel', this.handleWheel.bind(this));
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this.overlay.removeEventListener('touchstart', this.handleTouchStart.bind(this));
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this.overlay.removeEventListener('touchmove', this.handleTouchMove.bind(this));
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this.overlay.removeEventListener('touchend', this.handleTouchEnd.bind(this));
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}
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}
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// 将 Lightbox 类添加到全局对象
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window.Lightbox = Lightbox;
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// 自动初始化
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document.addEventListener('DOMContentLoaded', () => {
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new Lightbox();
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});
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Loading…
Reference in New Issue
Block a user