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Make scrolling more generic #201
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,17 +1,90 @@ | ||
| function scrollToRight() { | ||
| var element = document.getElementById("showcase-scrolling-wrapper"); | ||
| element.scrollBy({ | ||
| top: 0, | ||
| left: 320, | ||
| behavior: 'smooth' | ||
| }); | ||
| function isScrollable(element) { | ||
| return element.scrollWidth > element.clientWidth; | ||
| } | ||
|
|
||
| function updateScrollButtonStates(scrollable, leftButton, rightButton) { | ||
| const isAtStart = scrollable.scrollLeft === 0; | ||
| const isAtEnd = scrollable.scrollLeft + scrollable.clientWidth >= scrollable.scrollWidth - 1; // -1 to account for rounding errors | ||
|
|
||
| leftButton.disabled = isAtStart; | ||
| rightButton.disabled = isAtEnd; | ||
|
|
||
| // Optional: Add/remove a class for styling | ||
| leftButton.classList.toggle('disabled', isAtStart); | ||
| rightButton.classList.toggle('disabled', isAtEnd); | ||
| } | ||
|
|
||
| function scrollToLeft() { | ||
| var element = document.getElementById("showcase-scrolling-wrapper"); | ||
| element.scrollBy({ | ||
| top: 0, | ||
| left: -320, | ||
| behavior: 'smooth' | ||
| function updateScrollButtonVisibility(scrollable, buttonGroup) { | ||
| if (isScrollable(scrollable)) { | ||
| buttonGroup.style.display = 'flex'; | ||
| const leftButton = buttonGroup.querySelector(".left-scroll-button"); | ||
| const rightButton = buttonGroup.querySelector(".right-scroll-button"); | ||
| updateScrollButtonStates(scrollable, leftButton, rightButton); | ||
| } else { | ||
| buttonGroup.style.display = 'none'; | ||
| } | ||
| } | ||
|
|
||
| function scroll(direction) { | ||
| return function (event) { | ||
| const buttonGroup = event.target.closest(".scroll-button-group"); | ||
| const scrollableID = buttonGroup.getAttribute("data-scrollable"); | ||
| const scrollable = document.getElementById(scrollableID); | ||
| const cardWidth = scrollable.querySelector(".card").offsetWidth + 32; | ||
|
|
||
| if (scrollable) { | ||
| scrollable.scrollBy({ | ||
| top: 0, | ||
| left: direction * cardWidth, | ||
| behavior: 'smooth' | ||
| }); | ||
|
|
||
| // Update button states after scrolling | ||
| setTimeout(() => { | ||
| const leftButton = buttonGroup.querySelector(".left-scroll-button"); | ||
| const rightButton = buttonGroup.querySelector(".right-scroll-button"); | ||
| updateScrollButtonStates(scrollable, leftButton, rightButton); | ||
| }, 500); // Adjust timeout to match your scroll behavior duration | ||
| } | ||
| }; | ||
| } | ||
|
|
||
| const scrollToRight = scroll(1); | ||
| const scrollToLeft = scroll(-1); | ||
|
|
||
| function initializeScrollButtons() { | ||
| document.querySelectorAll(".scroll-button-group").forEach(buttonGroup => { | ||
| const scrollableID = buttonGroup.getAttribute("data-scrollable"); | ||
| const scrollable = document.getElementById(scrollableID); | ||
|
|
||
| if (scrollable) { | ||
| const leftButton = buttonGroup.querySelector(".left-scroll-button"); | ||
| const rightButton = buttonGroup.querySelector(".right-scroll-button"); | ||
|
|
||
| updateScrollButtonVisibility(scrollable, buttonGroup); | ||
|
|
||
| // Add event listeners to buttons | ||
| leftButton.addEventListener("click", scrollToLeft); | ||
| rightButton.addEventListener("click", scrollToRight); | ||
|
|
||
| // Update visibility and button states on scroll | ||
| scrollable.addEventListener('scroll', () => { | ||
| updateScrollButtonStates(scrollable, leftButton, rightButton); | ||
| }); | ||
|
|
||
| // Update visibility and button states on window resize | ||
| window.addEventListener('resize', () => { | ||
| updateScrollButtonVisibility(scrollable, buttonGroup); | ||
| }); | ||
|
|
||
| // Optional: Update visibility and button states when content changes | ||
| const observer = new MutationObserver(() => { | ||
| updateScrollButtonVisibility(scrollable, buttonGroup); | ||
| }); | ||
| observer.observe(scrollable, { childList: true, subtree: true }); | ||
| } | ||
| }); | ||
| } | ||
|
|
||
| // Call this function when the DOM is ready | ||
| document.addEventListener('DOMContentLoaded', initializeScrollButtons); |
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We need dark mode versions of the disabled state