Overlay Slider Functionality Update

January 20, 2025 ยท AI Conversations

User
if ($('.overlay-slider-grid').length) {
const $overlaySliderGrid = $('.overlay-slider-grid');
const $overlayslider = $('.overlay-slider');
const $mainparent = $overlaySliderGrid.find('.content-overlayslider');
const $hoverItems = $mainparent.find('.hover-item');

let currentIndex = 0; // For tracking the selected item for keyboard navigation or scroll

// Function to update background and content
const updateSlider = ($item) => {
const newBg = $item.data('bg');
$overlayslider.css('background-image', `url(${newBg})`);

$item.find('.content').addClass('active');
$item.find('.description').addClass('active');
$item.siblings().find('.content, .description').removeClass('active');
$this.css({
'will-change': 'transform',
'transform': `translate3d(${(xPos – 50) * 0.1}px, ${(yPos – 50) * 0.1}px, 0) scale3d(1, 1, 1) rotateX(0deg) rotateY(0deg) rotateZ(0deg) skew(0deg, 0deg)`,
'transform-style': 'preserve-3d'
});
};

// Scroll event for hover items
$hoverItems.on('wheel', function () {
updateSlider($(this));

});

// Keyboard navigation (up/down arrow keys)
$(document).on('keydown', function (e) {
if (e.key === 'ArrowUp') {
currentIndex = (currentIndex – 1 + $hoverItems.length) % $hoverItems.length;
updateSlider($hoverItems.eq(currentIndex));
} else if (e.key === 'ArrowDown') {
currentIndex = (currentIndex + 1) % $hoverItems.length;
updateSlider($hoverItems.eq(currentIndex));
}
});

// Intersection Observer to detect visibility of the overlay-slider-grid
const observerOptions = {
root: null,
rootMargin: '0px',
threshold: 0.5
};

const observer = new IntersectionObserver((entries) => {
entries.forEach((entry) => {
if (entry.isIntersecting) {
$mainparent.addClass('visible');
$hoverItems.eq(currentIndex).trigger('wheel'); // Trigger initial update
} else {
$mainparent.removeClass('visible');
}
});
}, observerOptions);

observer.observe($overlaySliderGrid[0]);

// Browser scrollbar event to update content
$(window).on('scroll', function () {
const scrollTop = $(window).scrollTop();
const overlayOffset = $overlaySliderGrid.offset().top;
const overlayHeight = $overlaySliderGrid.outerHeight();

if (scrollTop >= overlayOffset && scrollTop

Assistant
To add mouseenter movement and functionality for opening slides in your existing jQuery code for the overlay slider, you can implement the following changes. This will include mouseenter events to trigger the slider updates and to manage the opening of the slides:

if ($('.overlay-slider-grid').length) {
    const $overlaySliderGrid = $('.overlay-slider-grid');
    const $overlayslider = $('.overlay-slider');
    const $mainparent = $overlaySliderGrid.find('.content-overlayslider');
    const $hoverItems = $mainparent.find('.hover-item');

    let currentIndex = 0; // For tracking the selected item for keyboard navigation or scroll

    // Function to update background and content
    const updateSlider = ($item) => {
        const newBg = $item.data('bg');
        $overlayslider.css('background-image', `url(${newBg})`);

        $item.find('.content').addClass('active');
        $item.find('.description').addClass('active');
        $item.siblings().find('.content, .description').removeClass('active');
        $item.css({
            'will-change': 'transform',
            'transform': `translate3d(${(xPos - 50) * 0.1}px, ${(yPos - 50) * 0.1}px, 0) scale3d(1, 1, 1) rotateX(0deg) rotateY(0deg) rotateZ(0deg) skew(0deg, 0deg)`,
            'transform-style': 'preserve-3d'
        });
    };

    // Scroll event for hover items
    $hoverItems.on('wheel', function () {
        updateSlider($(this));
    });

    // Mouse enter event for hover items
    $hoverItems.on('mouseenter', function () {
        updateSlider($(this));
    });

    // Keyboard navigation (up/down arrow keys)
    $(document).on('keydown', function (e) {
        if (e.key === 'ArrowUp') {
            currentIndex = (currentIndex - 1 + $hoverItems.length) % $hoverItems.length;
            updateSlider($hoverItems.eq(currentIndex));
        } else if (e.key === 'ArrowDown') {
            currentIndex = (currentIndex + 1) % $hoverItems.length;
            updateSlider($hoverItems.eq(currentIndex));
        }
    });

    // Intersection Observer to detect visibility of the overlay-slider-grid
    const observerOptions = {
        root: null,
        rootMargin: '0px',
        threshold: 0.5
    };

    const observer = new IntersectionObserver((entries) => {
        entries.forEach((entry) => {
            if (entry.isIntersecting) {
                $mainparent.addClass('visible');
                $hoverItems.eq(currentIndex).trigger('wheel'); // Trigger initial update
            } else {
                $mainparent.removeClass('visible');
            }
        });
    }, observerOptions);

    observer.observe($overlaySliderGrid[0]);

    // Browser scrollbar event to update content
    $(window).on('scroll', function () {
        const scrollTop = $(window).scrollTop();
        const overlayOffset = $overlaySliderGrid.offset().top;
        const overlayHeight = $overlaySliderGrid.outerHeight();

        if (scrollTop >= overlayOffset && scrollTop <= overlayOffset + overlayHeight) {
            const relativeScroll = (scrollTop - overlayOffset) / overlayHeight; // 0 to 1 range
            const newIndex = Math.floor(relativeScroll * $hoverItems.length);

            if (newIndex !== currentIndex) {
                currentIndex = newIndex;
                updateSlider($hoverItems.eq(currentIndex));
            }
        }
    });

    // Optional: Add mouseleave event to reset to initial state
    $hoverItems.on('mouseleave', function () {
        // Optionally reset to default slide or clear active classes
        const defaultItem = $hoverItems.eq(currentIndex);
        updateSlider(defaultItem);
    });
}

### Key Additions:
1. **Mouseenter Event:** Added a mouseenter event on `$hoverItems` to update the slider whenever a user hovers over an item.
2. **Mouseleave Event:** Optionally added a mouseleave event to reset to the current item when the mouse leaves a hover item.

### Adjustments:
– Ensure you adjust the `updateSlider` function if you want to customize the animation or effects that should happen when an item is hovered over or focused on.
– You may also want to manage the transformation or animation effects depending on how you want the slide interaction to behave.

User
Uncaught ReferenceError: xPos is not defined
Assistant
The `Uncaught ReferenceError: xPos is not defined` error occurs because the variables `xPos` and `yPos` are referenced in the `updateSlider` function but are not defined or initialized anywhere in your code. You need to define these variables based on the mouse position when the hover item is interacted with.

Here's an updated version of the code that initializes `xPos` and `yPos` based on the mouse events:

if ($('.overlay-slider-grid').length) {
    const $overlaySliderGrid = $('.overlay-slider-grid');
    const $overlayslider = $('.overlay-slider');
    const $mainparent = $overlaySliderGrid.find('.content-overlayslider');
    const $hoverItems = $mainparent.find('.hover-item');

    let currentIndex = 0; // For tracking the selected item for keyboard navigation or scroll
    let xPos = 0; // Initialize xPos
    let yPos = 0; // Initialize yPos

    // Function to update background and content
    const updateSlider = ($item) => {
        const newBg = $item.data('bg');
        $overlayslider.css('background-image', `url(${newBg})`);

        $item.find('.content').addClass('active');
        $item.find('.description').addClass('active');
        $item.siblings().find('.content, .description').removeClass('active');
        $item.css({
            'will-change': 'transform',
            'transform': `translate3d(${(xPos - 50) * 0.1}px, ${(yPos - 50) * 0.1}px, 0) scale3d(1, 1, 1) rotateX(0deg) rotateY(0deg) rotateZ(0deg) skew(0deg, 0deg)`,
            'transform-style': 'preserve-3d'
        });
    };

    // Scroll event for hover items
    $hoverItems.on('wheel', function () {
        updateSlider($(this));
    });

    // Mouse enter event for hover items
    $hoverItems.on('mouseenter', function (event) {
        // Update xPos and yPos based on mouse position
        xPos = event.clientX; // Get mouse X position
        yPos = event.clientY; // Get mouse Y position
        updateSlider($(this));
    });

    // Keyboard navigation (up/down arrow keys)
    $(document).on('keydown', function (e) {
        if (e.key === 'ArrowUp') {
            currentIndex = (currentIndex - 1 + $hoverItems.length) % $hoverItems.length;
            updateSlider($hoverItems.eq(currentIndex));
        } else if (e.key === 'ArrowDown') {
            currentIndex = (currentIndex + 1) % $hoverItems.length;
            updateSlider($hoverItems.eq(currentIndex));
        }
    });

    // Intersection Observer to detect visibility of the overlay-slider-grid
    const observerOptions = {
        root: null,
        rootMargin: '0px',
        threshold: 0.5
    };

    const observer = new IntersectionObserver((entries) => {
        entries.forEach((entry) => {
            if (entry.isIntersecting) {
                $mainparent.addClass('visible');
                $hoverItems.eq(currentIndex).trigger('wheel'); // Trigger initial update
            } else {
                $mainparent.removeClass('visible');
            }
        });
    }, observerOptions);

    observer.observe($overlaySliderGrid[0]);

    // Browser scrollbar event to update content
    $(window).on('scroll', function () {
        const scrollTop = $(window).scrollTop();
        const overlayOffset = $overlaySliderGrid.offset().top;
        const overlayHeight = $overlaySliderGrid.outerHeight();

        if (scrollTop >= overlayOffset && scrollTop <= overlayOffset + overlayHeight) {
            const relativeScroll = (scrollTop - overlayOffset) / overlayHeight; // 0 to 1 range
            const newIndex = Math.floor(relativeScroll * $hoverItems.length);

            if (newIndex !== currentIndex) {
                currentIndex = newIndex;
                updateSlider($hoverItems.eq(currentIndex));
            }
        }
    });

    // Optional: Add mouseleave event to reset to initial state
    $hoverItems.on('mouseleave', function () {
        // Optionally reset to default slide or clear active classes
        const defaultItem = $hoverItems.eq(currentIndex);
        updateSlider(defaultItem);
    });
}

### Key Changes:
1. **Initialization of `xPos` and `yPos`:** These variables are initialized to `0` at the beginning.
2. **Mouse Position Capture:** Inside the mouseenter event handler, the `xPos` and `yPos` are updated using `event.clientX` and `event.clientY` to get the current mouse position when the user hovers over an item.

This should resolve the `ReferenceError` and allow the transformation to work based on the mouse position when hovering over the items.

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