turn.js issue with css zoom

Question

I do know that turn.js has it's own zoom but, I have added a simple zoom script with css zoom.

It's working, I mean when you press the zoom button it does zoom in the page (and zoom out) but I can't seem to be able to figure out how to resize the flipbook.

I do have an eventListener for the full screen but it doesn't seem to work for zoom. (I know this might be really simple but I just couldn't figure it out.)

<button onclick="zoomed()" class="fa fa-search-plus" > </button> 

<!-- Zoom -->
var zoom_el = document.getElementById("flipbook");
var zom= true;
function zoomed(){
    if (zom == true) {
    zoom_el.style.zoom = 1.5;
    zoom_el.style.MozTransform = 'scale(1.5)';
    zoom_el.style.WebkitTransform = 'scale(1.5)';
    autoCenter: true
    zom = false
    }
    else {
    zoom_el.style.zoom= 1;
    zoom_el.style.MozTransform = 'scale(1)';
    zoom_el.style.WebkitTransform = 'scale(1)';
    autoCenter: true
    zom=true
    }
}


<!-- EventListener -->

window.addEventListener('resize', function (e) {
  flip.style.width = '';
  flip.style.height = '';
  $(flip).turn('size', flip.clientWidth, flip.clientHeight);

Answer 1

I found an answer on this website . The event listener doesn't detect class changes so we need a mutation observer, though you might still need the event listener:

 const mainNode = document.getElementById('flipbook') const toggleNode = document.getElementById('zoomed') toggleNode.addEventListener('click', function() { mainNode.classList.toggle('--zoomed') }) function callback(mutationsList, observer) { console.log('Mutations:', mutationsList) console.log('Observer:', observer) mutationsList.forEach(mutation => { if (mutation.attributeName === 'class') { zoomed_el.style.width = ''; zoomed_el.style.height = ''; autoCenter: true $(zoomed_el).turn('size', zoomed_el.clientWidth, zoomed_el.clientHeight); } }) } const mutationObserver = new MutationObserver(callback) mutationObserver.observe(mainNode, { attributes: true }) window.addEventListener('resize', function(e) { zoomed_el.style.width = ''; zoomed_el.style.height = ''; $(zoomed_el).turn('size', zoom_el.clientWidth, zoom_el.clientHeight); });

 .zoomed { width: 1383px;important: height; 900px:important; left: -411px;important: top; 200px !important; padding-bottom: 30px !important; }

 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <button id="zoomed" class="fa fa-search-plus"> </button>

Answer 2

Ok so I managed to edit it correctly by adding in css the class.zoomed

.zoomed{
    width:1383px !important;
    height:900px  !important;
    left:-411px  !important;
    top:200px  !important;
    padding-bottom:30px  !important;
}

the button

<button id="zoomed" class="fa fa-search-plus" > </button>

and I found in this website the answer. The event listener doesn't detect class changes so we need a mutation observer.

const mainNode = document.getElementById('flipbook')
const toggleNode = document.getElementById('zoomed')

toggleNode.addEventListener('click', function() {
  mainNode.classList.toggle('--zoomed')
})

function callback(mutationsList, observer) {
    console.log('Mutations:', mutationsList)
    console.log('Observer:', observer)
    mutationsList.forEach(mutation => {
        if (mutation.attributeName === 'class') {
            zoomed_el.style.width = '';
            zoomed_el.style.height = '';
            autoCenter: true
        $(zoomed_el).turn('size', zoomed_el.clientWidth, zoomed_el.clientHeight);
        }
    })
}

const mutationObserver = new MutationObserver(callback)

mutationObserver.observe(mainNode, { attributes: true })

You might still need the event listener though

window.addEventListener('resize', function (e) {
  zoomed_el.style.width = '';
  zoomed_el.style.height = '';
  $(zoomed_el).turn('size', zoom_el.clientWidth, zoom_el.clientHeight);
});