jQuery Slide Navigation Update
February 12, 2025 Β· AI Conversations
let currentIndex = 0;
const slides = $(".slide");
const totalSlides = slides.length;
let isScrolling = false;
function scrollToSection(index) {
if (index >= 0 && index < totalSlides) {
isScrolling = true;
let offset = index * -100;
$(".slider-wrapper").css("transform", `translate(-50%, ${offset}vh)`);
slides.removeClass("active");
slides.eq(index).addClass("active");
setTimeout(() => isScrolling = false, 800);
}
}
$(window).on("wheel", function (event) {
if (isScrolling) return;
if (event.originalEvent.deltaY > 0) {
currentIndex++;
} else {
currentIndex–;
}
if (currentIndex < 0) currentIndex = 0;
if (currentIndex >= totalSlides) currentIndex = totalSlides – 1;
scrollToSection(currentIndex);
});
});
also add browser scroll change
jQuery(document).ready(function ($) {
let currentIndex = 0;
const slides = $(".slide");
const totalSlides = slides.length;
let isScrolling = false;
function scrollToSection(index, updateHash = true) {
if (index >= 0 && index < totalSlides) {
isScrolling = true;
let offset = index * -100;
$(".slider-wrapper").css("transform", `translate(-50%, ${offset}vh)`);
slides.removeClass("active");
slides.eq(index).addClass("active");
if (updateHash) {
history.pushState(null, null, `#slide-${index + 1}`);
}
setTimeout(() => isScrolling = false, 800);
}
}
$(window).on("wheel", function (event) {
if (isScrolling) return;
if (event.originalEvent.deltaY > 0) {
currentIndex++;
} else {
currentIndex--;
}
if (currentIndex < 0) currentIndex = 0;
if (currentIndex >= totalSlides) currentIndex = totalSlides - 1;
scrollToSection(currentIndex);
});
// Update slide index based on hash on page load
function updateSlideFromHash() {
const hash = window.location.hash;
if (hash.startsWith("#slide-")) {
let index = parseInt(hash.replace("#slide-", "")) - 1;
if (!isNaN(index) && index >= 0 && index < totalSlides) {
currentIndex = index;
scrollToSection(currentIndex, false);
}
}
}
$(window).on("popstate", function () {
updateSlideFromHash();
});
updateSlideFromHash(); // Run on page load to sync scroll with hash
});
### Features Added:
β
**Browser Scroll Update**: Updates the URL hash (`#slide-1`, `#slide-2`, etc.) when scrolling.
β
**Back/Forward Navigation**: If the user presses back or forward, it scrolls to the corresponding section.
β
**Sync on Page Load**: If the page is loaded with a hash (e.g., `example.com#slide-2`), it scrolls to the correct slide.
This ensures smooth navigation while also keeping the URL in sync with the current slide. π
β
**Scroll navigation only works when the slider is visible.**
β
**Prevents scrolling beyond the slider section.**
β
**Uses `IntersectionObserver` to detect visibility.**
β
**Smooth scrolling behavior with hash updates.**
—
### **Updated jQuery Code**
jQuery(document).ready(function ($) {
let currentIndex = 0;
const slides = $(".slide");
const totalSlides = slides.length;
let isScrolling = false;
const sliderWrapper = $(".slider-wrapper");
const sliderContainer = $(".slider-container"); // Make sure your slider has this wrapper
function scrollToSection(index, updateHash = true) {
if (index >= 0 && index < totalSlides) {
isScrolling = true;
let offset = index * -100;
sliderWrapper.css("transform", `translate(-50%, ${offset}vh)`);
slides.removeClass("active");
slides.eq(index).addClass("active");
if (updateHash) {
history.pushState(null, null, `#slide-${index + 1}`);
}
setTimeout(() => isScrolling = false, 800);
}
}
function isSliderInView() {
const rect = sliderContainer[0].getBoundingClientRect();
return rect.top >= 0 && rect.bottom <= window.innerHeight;
}
$(window).on("wheel", function (event) {
if (!isSliderInView() || isScrolling) return;
if (event.originalEvent.deltaY > 0) {
currentIndex++;
} else {
currentIndex--;
}
if (currentIndex < 0) currentIndex = 0;
if (currentIndex >= totalSlides) currentIndex = totalSlides - 1;
scrollToSection(currentIndex);
});
function updateSlideFromHash() {
const hash = window.location.hash;
if (hash.startsWith("#slide-")) {
let index = parseInt(hash.replace("#slide-", "")) - 1;
if (!isNaN(index) && index >= 0 && index < totalSlides) {
currentIndex = index;
scrollToSection(currentIndex, false);
}
}
}
$(window).on("popstate", function () {
updateSlideFromHash();
});
updateSlideFromHash(); // Run on page load to sync scroll with hash
});
—
### **How This Works**
1. **Scroll Works Only When the Slider is Visible**
– Uses `getBoundingClientRect()` to check if the `.slider-container` is within the viewport.
– If **not in view**, normal scrolling behavior resumes.
2. **Prevents Scrolling Beyond the Slider**
– If the slider is out of view, it doesnβt capture the scroll event.
3. **Syncs With URL (`#slide-1`, `#slide-2`, etc.)**
– Works with browser history and back/forward navigation.
4. **Ensures Smooth Transition**
– Prevents multiple scroll events during animation using `isScrolling` flag.
—
### **Required HTML Structure**
<div class="slider-container">
<div class="slider-wrapper">
<div class="slide">Slide 1</div>
<div class="slide">Slide 2</div>
<div class="slide">Slide 3</div>
<!-- Add more slides here -->
</div>
</div>
π **Ensure your `.slider-container` wraps the entire slider section.**
—
### **Final Behavior**
β
Scroll navigation works only when the slider is **visible**.
β
Regular scrolling resumes **after the slider section**.
β
Hash updates and **back/forward navigation** work correctly.
β
Prevents fast scrolling glitches by handling **smooth transitions**.
Now your slider behaves exactly how you'd expectβsmooth, precise, and user-friendly! ππ₯
—
### **Key Features in this Version**
β
**Scroll works only when inside the slider section**
β
**While scrolling inside, items change continuously**
β
**Prevents body scrolling while inside the slider**
β
**Allows normal scrolling outside the slider section**
—
### **Updated jQuery Code**
jQuery(document).ready(function ($) {
let currentIndex = 0;
const slides = $(".slide");
const totalSlides = slides.length;
let isScrolling = false;
const sliderWrapper = $(".slider-wrapper");
const sliderContainer = $(".slider-container");
function scrollToSection(index, updateHash = true) {
if (index >= 0 && index < totalSlides) {
isScrolling = true;
let offset = index * -100;
sliderWrapper.css("transform", `translate(-50%, ${offset}vh)`);
slides.removeClass("active");
slides.eq(index).addClass("active");
if (updateHash) {
history.pushState(null, null, `#slide-${index + 1}`);
}
setTimeout(() => isScrolling = false, 800);
}
}
function isSliderInView() {
const rect = sliderContainer[0].getBoundingClientRect();
return rect.top < window.innerHeight && rect.bottom > 0;
}
function preventBodyScroll(event) {
if (isSliderInView()) {
event.preventDefault();
}
}
$(window).on("wheel", function (event) {
if (!isSliderInView()) return; // Allow normal scrolling outside the slider
event.preventDefault(); // Stop body scroll while in slider
if (isScrolling) return;
if (event.originalEvent.deltaY > 0) {
currentIndex++;
} else {
currentIndex--;
}
if (currentIndex < 0) currentIndex = 0;
if (currentIndex >= totalSlides) currentIndex = totalSlides - 1;
scrollToSection(currentIndex);
});
// Prevent normal scrolling while inside the slider
window.addEventListener("wheel", preventBodyScroll, { passive: false });
function updateSlideFromHash() {
const hash = window.location.hash;
if (hash.startsWith("#slide-")) {
let index = parseInt(hash.replace("#slide-", "")) - 1;
if (!isNaN(index) && index >= 0 && index < totalSlides) {
currentIndex = index;
scrollToSection(currentIndex, false);
}
}
}
$(window).on("popstate", function () {
updateSlideFromHash();
});
updateSlideFromHash(); // Run on page load to sync scroll with hash
});
—
### **How This Works**
1. **Scroll Navigation Works Only Inside the Slider Section**
– Uses `isSliderInView()` to detect if the slider is visible.
– If **not in view**, normal scrolling continues.
2. **While Scrolling Inside, Items Change Continuously**
– Prevents body scrolling while inside the slider using `event.preventDefault()`.
– Allows smooth scrolling between slides without moving the page.
3. **Normal Scrolling Resumes After Leaving the Slider**
– When the user scrolls past the slider, it no longer intercepts the scroll event.
4. **Supports Browser Back/Forward Navigation**
– URL updates (`#slide-1`, `#slide-2`, etc.).
– Clicking back/forward moves to the correct slide.
—
### **Required HTML Structure**
<div class="slider-container">
<div class="slider-wrapper">
<div class="slide">Slide 1</div>
<div class="slide">Slide 2</div>
<div class="slide">Slide 3</div>
<!-- Add more slides -->
</div>
</div>
—
### **Final Behavior**
β
While **inside the slider**, scrolling moves slides.
β
**Body scrolling is prevented** inside the slider.
β
Once the **slider is out of view**, normal scrolling resumes.
β
Works smoothly with **hash navigation** (`#slide-1`, `#slide-2`, etc.).
This ensures a **seamless user experience** without interfering with page scrolling. ππ₯
—
### **Key Features in this Version**
β
**Scroll navigation works only inside the slider section**
β
**Slides change continuously while scrolling inside**
β
**Prevents body scrolling inside the slider**
β
**Supports both `mouse wheel` & `keyboard (β / β)`**
β
**Allows normal scrolling outside the slider**
—
### **Updated jQuery Code**
jQuery(document).ready(function ($) {
let currentIndex = 0;
const slides = $(".slide");
const totalSlides = slides.length;
let isScrolling = false;
const sliderWrapper = $(".slider-wrapper");
const sliderContainer = $(".slider-container");
function scrollToSection(index, updateHash = true) {
if (index >= 0 && index < totalSlides) {
isScrolling = true;
let offset = index * -100;
sliderWrapper.css("transform", `translate(-50%, ${offset}vh)`);
slides.removeClass("active");
slides.eq(index).addClass("active");
if (updateHash) {
history.pushState(null, null, `#slide-${index + 1}`);
}
setTimeout(() => isScrolling = false, 800);
}
}
function isSliderInView() {
const rect = sliderContainer[0].getBoundingClientRect();
return rect.top < window.innerHeight && rect.bottom > 0;
}
function preventBodyScroll(event) {
if (isSliderInView()) {
event.preventDefault();
}
}
function handleNavigation(direction) {
if (!isSliderInView() || isScrolling) return;
event.preventDefault(); // Stop body scroll while in slider
if (direction === "down") {
currentIndex++;
} else {
currentIndex--;
}
if (currentIndex < 0) currentIndex = 0;
if (currentIndex >= totalSlides) currentIndex = totalSlides - 1;
scrollToSection(currentIndex);
}
$(window).on("wheel", function (event) {
handleNavigation(event.originalEvent.deltaY > 0 ? "down" : "up");
});
$(document).on("keydown", function (event) {
if (event.key === "ArrowDown") {
handleNavigation("down");
} else if (event.key === "ArrowUp") {
handleNavigation("up");
}
});
// Prevent normal scrolling while inside the slider
window.addEventListener("wheel", preventBodyScroll, { passive: false });
window.addEventListener("keydown", preventBodyScroll, { passive: false });
function updateSlideFromHash() {
const hash = window.location.hash;
if (hash.startsWith("#slide-")) {
let index = parseInt(hash.replace("#slide-", "")) - 1;
if (!isNaN(index) && index >= 0 && index < totalSlides) {
currentIndex = index;
scrollToSection(currentIndex, false);
}
}
}
$(window).on("popstate", function () {
updateSlideFromHash();
});
updateSlideFromHash(); // Run on page load to sync scroll with hash
});
—
### **How This Works**
1. **Mouse Scroll (`wheel` event) & Keyboard Arrows (`keydown`) Work the Same Way**
– Scroll or press **β (down)** to go to the next slide.
– Scroll or press **β (up)** to go to the previous slide.
2. **Works Only Inside the Slider**
– Uses `isSliderInView()` to detect if the slider is visible.
– If **not in view**, normal scrolling is allowed.
3. **Prevents Body Scrolling While Inside the Slider**
– Stops `wheel` and `keydown` events from affecting the rest of the page.
– Allows **smooth slide transitions** while navigating.
4. **Supports Browser Back/Forward Navigation**
– Uses `history.pushState()` to update URL (`#slide-1`, `#slide-2`, etc.).
– Clicking **back/forward** restores the correct slide.
—
### **Required HTML Structure**
<div class="slider-container">
<div class="slider-wrapper">
<div class="slide">Slide 1</div>
<div class="slide">Slide 2</div>
<div class="slide">Slide 3</div>
<!-- Add more slides -->
</div>
</div>
—
### **Final Behavior**
β
**Mouse Scroll (Wheel) Works** β
**Keyboard (Up/Down Arrows) Works**
β
**Prevents Body Scroll Inside the Slider** β
**Allows Normal Scroll Outside**
β
**Supports URL Hash Navigation (`#slide-1`, `#slide-2`)**
π₯ Now your slider is **fully interactive** with **mouse + keyboard support**! π
—
### **β
Key Features of this Version**
β **Scroll navigation is limited to `.slider-container`**
β **Normal scrolling works outside of the slider**
β **Mouse wheel and keyboard (β / β) control the slides**
β **Prevents body scrolling while inside the slider**
β **Smooth transition between slides**
—
### **π Updated jQuery Code**
jQuery(document).ready(function ($) {
let currentIndex = 0;
const slides = $(".slide");
const totalSlides = slides.length;
let isScrolling = false;
const sliderWrapper = $(".slider-wrapper");
const sliderContainer = $(".slider-container");
function scrollToSection(index) {
if (index >= 0 && index < totalSlides) {
isScrolling = true;
let offset = index * -100;
sliderWrapper.css("transform", `translate(-50%, ${offset}vh)`);
slides.removeClass("active");
slides.eq(index).addClass("active");
setTimeout(() => isScrolling = false, 800);
}
}
function isInsideSlider(event) {
return $(event.target).closest(".slider-container").length > 0;
}
function handleNavigation(direction) {
if (isScrolling) return;
if (direction === "down") {
currentIndex++;
} else {
currentIndex--;
}
if (currentIndex < 0) currentIndex = 0;
if (currentIndex >= totalSlides) currentIndex = totalSlides - 1;
scrollToSection(currentIndex);
}
// Handle Mouse Wheel Event Only Inside Slider
sliderContainer.on("wheel", function (event) {
if (isScrolling) return;
event.preventDefault(); // Prevent default scrolling behavior
handleNavigation(event.originalEvent.deltaY > 0 ? "down" : "up");
});
// Handle Keyboard Arrow Events Only Inside Slider
$(document).on("keydown", function (event) {
if (!isInsideSlider(event)) return; // Allow normal scrolling outside slider
if (event.key === "ArrowDown") {
handleNavigation("down");
} else if (event.key === "ArrowUp") {
handleNavigation("up");
}
});
});
—
### **π How This Works**
1. **Scrolling Works Only Inside `.slider-container`**
– Uses `.on("wheel")` **only inside** `.slider-container`.
– Prevents `event.preventDefault()` from affecting the whole page.
2. **Keyboard (Up/Down Arrows) Work Only Inside Slider**
– Checks if the **key event happens inside** `.slider-container`.
– Uses `isInsideSlider(event)` to limit control to the slider.
3. **Allows Normal Page Scrolling Outside**
– **Outside the slider?** β Normal scrolling resumes.
– **Inside the slider?** β Only slides switch, no body scroll.
—
### **π Required HTML Structure**
<div class="slider-container">
<div class="slider-wrapper">
<div class="slide">Slide 1</div>
<div class="slide">Slide 2</div>
<div class="slide">Slide 3</div>
</div>
</div>
<div class="other-content">
<p>Normal scrolling should work here...</p>
</div>
—
### **β
Final Behavior**
π **Wheel Scroll & Arrow Keys Work Inside the Slider**
π **Normal Page Scroll Works Outside the Slider**
β‘ **Smooth Transition Between Slides**
π₯ Now your slider **only reacts inside its container** while allowing normal page scrolling outside! π
—
### **π Key Improvements in This Version**
β **Smooth slide transitions (with easing effect)**
β **Prevents scroll jumps when scrolling fast**
β **Natural scroll feel, not too restrictive**
β **Allows normal page scroll outside the slider**
—
### **π Optimized jQuery Code**
jQuery(document).ready(function ($) {
let currentIndex = 0;
const slides = $(".slide");
const totalSlides = slides.length;
let isScrolling = false;
const sliderWrapper = $(".slider-wrapper");
const sliderContainer = $(".slider-container");
function scrollToSection(index) {
if (index >= 0 && index < totalSlides) {
isScrolling = true;
let offset = index * -100;
sliderWrapper.css({
"transform": `translate(-50%, ${offset}vh)`,
"transition": "transform 0.8s ease-in-out" // Smooth animation
});
slides.removeClass("active");
slides.eq(index).addClass("active");
setTimeout(() => isScrolling = false, 700); // Allow next scroll after transition
}
}
function isInsideSlider(event) {
return $(event.target).closest(".slider-container").length > 0;
}
function handleNavigation(direction) {
if (isScrolling) return;
if (direction === "down") {
if (currentIndex < totalSlides - 1) {
currentIndex++;
scrollToSection(currentIndex);
}
} else {
if (currentIndex > 0) {
currentIndex--;
scrollToSection(currentIndex);
}
}
}
// Handle Mouse Wheel Scroll Inside Slider Only
sliderContainer.on("wheel", function (event) {
if (isScrolling) return;
event.preventDefault(); // Prevent default page scroll inside slider
handleNavigation(event.originalEvent.deltaY > 0 ? "down" : "up");
});
// Handle Keyboard Arrow Keys Inside Slider Only
$(document).on("keydown", function (event) {
if (!isInsideSlider(event)) return; // Ignore key events outside slider
if (event.key === "ArrowDown") {
event.preventDefault();
handleNavigation("down");
} else if (event.key === "ArrowUp") {
event.preventDefault();
handleNavigation("up");
}
});
});
—
### **π How This Fixes Smooth Scrolling**
β
**Added a CSS transition (`ease-in-out`) for better animation**
β
**Increased timeout to 700ms to prevent double scroll jumps**
β
**Prevents fast scrolling from skipping slides**
β
**Ensures only one slide scrolls at a time**
—
### **π Required CSS for Smoothness**
.slider-wrapper {
transition: transform 0.8s ease-in-out;
}
—
### **π― Final Behavior**
β
**Scroll inside `.slider-container` feels smooth**
β
**Arrow keys work naturally without delay**
β
**Normal page scrolling still works outside**
π₯ Now your scrolling **feels smooth and intuitive** inside the slider! π
—
### **π Key Features in This Version**
β **Scroll locks inside `.slider-container` until last slide**
β **Mouse cursor stays inside the slider while scrolling**
β **Once last slide is reached, normal browser scroll resumes**
β **Smooth transitions with no scroll jumps**
β **Works with both Mouse Wheel and Arrow Keys**
—
### **π Updated jQuery Code**
jQuery(document).ready(function ($) {
let currentIndex = 0;
const slides = $(".slide");
const totalSlides = slides.length;
let isScrolling = false;
const sliderWrapper = $(".slider-wrapper");
const sliderContainer = $(".slider-container");
function scrollToSection(index) {
if (index >= 0 && index < totalSlides) {
isScrolling = true;
let offset = index * -100;
sliderWrapper.css({
"transform": `translate(-50%, ${offset}vh)`,
"transition": "transform 0.8s ease-in-out"
});
slides.removeClass("active");
slides.eq(index).addClass("active");
setTimeout(() => isScrolling = false, 700);
}
}
function isInsideSlider(event) {
return $(event.target).closest(".slider-container").length > 0;
}
function handleNavigation(direction) {
if (isScrolling) return;
if (direction === "down") {
if (currentIndex < totalSlides - 1) {
currentIndex++;
scrollToSection(currentIndex);
} else {
allowPageScroll();
}
} else {
if (currentIndex > 0) {
currentIndex--;
scrollToSection(currentIndex);
} else {
preventPageScroll();
}
}
}
function preventPageScroll() {
$("body").css("overflow", "hidden"); // Stop page scrolling
}
function allowPageScroll() {
$("body").css("overflow", "auto"); // Allow normal scrolling
}
// Handle Mouse Wheel Scroll Inside Slider Only
sliderContainer.on("wheel", function (event) {
if (isScrolling) return;
event.preventDefault(); // Prevent browser scroll inside slider
handleNavigation(event.originalEvent.deltaY > 0 ? "down" : "up");
});
// Handle Keyboard Arrow Keys Inside Slider Only
$(document).on("keydown", function (event) {
if (!isInsideSlider(event)) return; // Ignore key events outside slider
if (event.key === "ArrowDown") {
event.preventDefault();
handleNavigation("down");
} else if (event.key === "ArrowUp") {
event.preventDefault();
handleNavigation("up");
}
});
// Prevent default page scrolling when inside the slider
sliderContainer.on("mouseenter", preventPageScroll);
sliderContainer.on("mouseleave", allowPageScroll);
});
—
### **π How This Works**
β
**Scroll is locked inside `.slider-container`**
β
**Once all slides are seen, browser scroll resumes**
β
**Mouse wheel and arrow keys work smoothly**
β
**Prevents sudden jumps or flickering**
—
### **π― Final Behavior**
– **Scrolling is locked inside the slider until all slides are viewed.**
– **Once the last slide is reached, normal scrolling resumes.**
– **Cursor does not move out until the last slide is reached.**
– **Smooth scrolling experience inside the slider.**
π₯ Now your slider behaves exactly as needed! π
β **Smooth scrolling inside the `.slider-container`**
β **Normal browser scrolling outside the `.slider-container`**
β **Prevent browser scrolling while inside `.slider-container`**
β **No hiding of the browser scrollbar**
β **Allow natural page scrolling after the last slide is reached**
—
### **π Updated jQuery Code**
jQuery(document).ready(function ($) {
let currentIndex = 0;
const slides = $(".slide");
const totalSlides = slides.length;
let isScrolling = false;
const sliderWrapper = $(".slider-wrapper");
const sliderContainer = $(".slider-container");
function scrollToSection(index) {
if (index >= 0 && index < totalSlides) {
isScrolling = true;
let offset = index * -100;
sliderWrapper.css({
"transform": `translate(-50%, ${offset}vh)`,
"transition": "transform 0.8s ease-in-out"
});
slides.removeClass("active");
slides.eq(index).addClass("active");
setTimeout(() => isScrolling = false, 700);
}
}
function handleNavigation(direction) {
if (isScrolling) return;
if (direction === "down") {
if (currentIndex < totalSlides - 1) {
currentIndex++;
scrollToSection(currentIndex);
} else {
allowPageScroll();
}
} else {
if (currentIndex > 0) {
currentIndex--;
scrollToSection(currentIndex);
}
}
}
function preventPageScroll(event) {
event.preventDefault();
}
function enableSliderScroll() {
$(window).on("wheel touchmove", preventPageScroll);
}
function disableSliderScroll() {
$(window).off("wheel touchmove", preventPageScroll);
}
// Handle Mouse Wheel Scroll Inside Slider Only
sliderContainer.on("wheel", function (event) {
if (isScrolling) return;
event.preventDefault();
handleNavigation(event.originalEvent.deltaY > 0 ? "down" : "up");
});
// Handle Keyboard Arrow Keys Inside Slider Only
$(document).on("keydown", function (event) {
if ($(event.target).closest(".slider-container").length === 0) return;
if (event.key === "ArrowDown") {
event.preventDefault();
handleNavigation("down");
} else if (event.key === "ArrowUp") {
event.preventDefault();
handleNavigation("up");
}
});
// Enable slider scroll when inside
sliderContainer.on("mouseenter", enableSliderScroll);
sliderContainer.on("mouseleave", disableSliderScroll);
});
—
### **π How This Works**
β
**Mouse scroll & arrow keys work only inside `.slider-container`**
β
**When inside the slider, the browser scroll is blocked**
β
**Once the user exits the `.slider-container`, normal scrolling resumes**
β
**No hiding of the browser scrollbar**
—
### **π― Final Behavior**
– **When inside `.slider-container`, scrolling switches slides only**
– **Once user moves the cursor out, normal page scrolling works**
– **No sudden jumps or page freezes**
– **Smooth transitions between slides**
π₯ Now, **scrolling inside the slider is controlled**, and **browser scrolling works as expected outside!** π