update img-slider

2025-07-01 06:01:51 +09:00
parent cf93721bad
commit bc99eb0814
11 changed files with 487 additions and 2 deletions
--- a/my-blog/static/js/image-comparison.js
+++ b/my-blog/static/js/image-comparison.js
@ -0,0 +1,123 @@
+/**
+ * Image Comparison Slider
+ * UE5-style before/after image comparison component
+ */
+
+class ImageComparison {
+    constructor(container) {
+        this.container = container;
+        this.slider = container.querySelector('.slider');
+        this.beforeImg = container.querySelector('.img-before');
+        this.afterImg = container.querySelector('.img-after');
+        this.sliderThumb = container.querySelector('.slider-thumb');
+        
+        this.isDragging = false;
+        this.containerRect = null;
+        
+        this.init();
+    }
+    
+    init() {
+        this.bindEvents();
+        this.updatePosition(50); // Start at 50%
+    }
+    
+    bindEvents() {
+        // Mouse events
+        this.slider.addEventListener('input', (e) => {
+            this.updatePosition(e.target.value);
+        });
+        
+        this.slider.addEventListener('mousedown', () => {
+            this.isDragging = true;
+            document.body.style.userSelect = 'none';
+        });
+        
+        document.addEventListener('mouseup', () => {
+            if (this.isDragging) {
+                this.isDragging = false;
+                document.body.style.userSelect = '';
+            }
+        });
+        
+        // Touch events for mobile
+        this.slider.addEventListener('touchstart', (e) => {
+            this.isDragging = true;
+            e.preventDefault();
+        });
+        
+        this.slider.addEventListener('touchmove', (e) => {
+            if (this.isDragging) {
+                const touch = e.touches[0];
+                this.containerRect = this.container.getBoundingClientRect();
+                const x = touch.clientX - this.containerRect.left;
+                const percentage = Math.max(0, Math.min(100, (x / this.containerRect.width) * 100));
+                this.slider.value = percentage;
+                this.updatePosition(percentage);
+                e.preventDefault();
+            }
+        });
+        
+        this.slider.addEventListener('touchend', () => {
+            this.isDragging = false;
+        });
+        
+        // Direct click on container
+        this.container.addEventListener('click', (e) => {
+            if (e.target === this.container || e.target.classList.contains('img-comparison-slider')) {
+                this.containerRect = this.container.getBoundingClientRect();
+                const x = e.clientX - this.containerRect.left;
+                const percentage = Math.max(0, Math.min(100, (x / this.containerRect.width) * 100));
+                this.slider.value = percentage;
+                this.updatePosition(percentage);
+            }
+        });
+        
+        // Keyboard support
+        this.slider.addEventListener('keydown', (e) => {
+            let value = parseFloat(this.slider.value);
+            switch (e.key) {
+                case 'ArrowLeft':
+                    value = Math.max(0, value - 1);
+                    break;
+                case 'ArrowRight':
+                    value = Math.min(100, value + 1);
+                    break;
+                case 'Home':
+                    value = 0;
+                    break;
+                case 'End':
+                    value = 100;
+                    break;
+                default:
+                    return;
+            }
+            e.preventDefault();
+            this.slider.value = value;
+            this.updatePosition(value);
+        });
+    }
+    
+    updatePosition(percentage) {
+        const position = parseFloat(percentage);
+        
+        // Update clip-path for before image to show only the left portion
+        this.beforeImg.style.clipPath = `inset(0 ${100 - position}% 0 0)`;
+        
+        // Update slider thumb position
+        this.sliderThumb.style.left = `${position}%`;
+        this.sliderThumb.style.transform = `translateX(-50%)`;
+        
+    }
+}
+
+// Auto-initialize all image comparison components
+document.addEventListener('DOMContentLoaded', function() {
+    const comparisons = document.querySelectorAll('.img-comparison-container');
+    comparisons.forEach(container => {
+        new ImageComparison(container);
+    });
+});
+
+// Export for manual initialization
+window.ImageComparison = ImageComparison;