Adjusting the height and width of the carousel based on whether the photo is in landscape or portrait orientation

Question

Adjusting the height and width of the carousel based on whether the photo is in landscape or portrait orientation

I have been using the code snippet below to make my landscape (4:3) photos fit into a carousel. However, I am now looking to dynamically change the width and height of the .carousel based on whether the photo is landscape or portrait orientation. How can I achieve this?

html {
  height: 100%;
  width: 100%;
}

body {
  height: 100%;
  width: 100%;
  display: block;
}

.carousel {
  /* The percentages specified here are for a 4:3 landscape photo (1600x1200) */
  height: 60%;
  width: 70%;
}

/* For portrait photos, I need to set height: 70%; and width: 60% */

Should I consider adding a class to the carousel-item indicating whether it's a landscape or portrait photo?

html css carousel

Answer 1

Answer №1

Create two classes, one for portrait orientation and one for landscape orientation. When an image is loaded or the size of the image is determined, check if it is in portrait or landscape mode, then add the corresponding class to the image or carousel container.

// An array containing a list of images
// You can store this list in a separate js file 
var imagesArray = ["https://lorempixel.com/300/500/animals/1", "https://lorempixel.com/300/500/animals/2", "https://lorempixel.com/500/300/animals/1","https://lorempixel.com/500/300/animals/2","https://lorempixel.com/500/300/city/1","https://lorempixel.com/300/500/city/2"];

// Function to display image based on user action 
function displayImage(direction, isURL) {
  // Implementation omitted for brevity    
}

// Event handler for image load
function imageLoadHandler(event) {
  // Implementation omitted for brevity   
}

function updateNavigationLabel() {
   // Implementation omitted for brevity  
}

window.addEventListener("DOMContentLoaded", function() {
  var element = document.getElementById("myImage");
  var button = document.getElementById("button");
  var carousel = document.getElementById("myCarousel");
  
  // Listen for when an image loads
  element.addEventListener("load", imageLoadHandler);
  // Listen for when the user clicks on the random button
  button.addEventListener("click", function() {
    displayImage('random')
  });

  displayImage("https://lorempixel.com/300/500/animals/2", true);

});

.landscape {
  height: 60%;
  width: 70%;
  outline:2px solid blue;
}

.portrait {
  height: 70%;
  width: 60%;
  outline:2px solid purple;
}

#myCarousel {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

#myImage {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  outline: 1px dashed red;
  height: 100%;
  width: 100%;
  object-fit: contain;
}

#button {
  position: fixed;
  right: 10px;
  top: 50px;
}

#loadingLabel {
  position: absolute;
  bottom: -20px;
  left: 50%;
  transform: translateX(-50%);
  font: 10px sans-serif;
  white-space: nowrap;
}

#navigationLabel {
  font: 10px sans-serif;
}

#navigation {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  font: 10px sans-serif;
}

<script src="myimages.js"></script>

<div id="myCarousel" class="landscape">
    <img id="myImage">
<label id="loadingLabel"></label>
</div>

<button id="button">random</button>

<div id="navigation">
  <button id="prev" onclick="displayImage('previous')">prev</button>
  <label id="navigationLabel"></label>
  <button id="next" onclick="displayImage('next')">next</button>
</div>

Answer 2

Create two classes, one for portrait orientation and one for landscape orientation. When an image is loaded or the size of the image is determined, check if it is in portrait or landscape mode, then add the corresponding class to the image or carousel container.

// An array containing a list of images
// You can store this list in a separate js file 
var imagesArray = ["https://lorempixel.com/300/500/animals/1", "https://lorempixel.com/300/500/animals/2", "https://lorempixel.com/500/300/animals/1","https://lorempixel.com/500/300/animals/2","https://lorempixel.com/500/300/city/1","https://lorempixel.com/300/500/city/2"];

// Function to display image based on user action 
function displayImage(direction, isURL) {
  // Implementation omitted for brevity    
}

// Event handler for image load
function imageLoadHandler(event) {
  // Implementation omitted for brevity   
}

function updateNavigationLabel() {
   // Implementation omitted for brevity  
}

window.addEventListener("DOMContentLoaded", function() {
  var element = document.getElementById("myImage");
  var button = document.getElementById("button");
  var carousel = document.getElementById("myCarousel");
  
  // Listen for when an image loads
  element.addEventListener("load", imageLoadHandler);
  // Listen for when the user clicks on the random button
  button.addEventListener("click", function() {
    displayImage('random')
  });

  displayImage("https://lorempixel.com/300/500/animals/2", true);

});

.landscape {
  height: 60%;
  width: 70%;
  outline:2px solid blue;
}

.portrait {
  height: 70%;
  width: 60%;
  outline:2px solid purple;
}

#myCarousel {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

#myImage {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  outline: 1px dashed red;
  height: 100%;
  width: 100%;
  object-fit: contain;
}

#button {
  position: fixed;
  right: 10px;
  top: 50px;
}

#loadingLabel {
  position: absolute;
  bottom: -20px;
  left: 50%;
  transform: translateX(-50%);
  font: 10px sans-serif;
  white-space: nowrap;
}

#navigationLabel {
  font: 10px sans-serif;
}

#navigation {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  font: 10px sans-serif;
}

<script src="myimages.js"></script>

<div id="myCarousel" class="landscape">
    <img id="myImage">
<label id="loadingLabel"></label>
</div>

<button id="button">random</button>

<div id="navigation">
  <button id="prev" onclick="displayImage('previous')">prev</button>
  <label id="navigationLabel"></label>
  <button id="next" onclick="displayImage('next')">next</button>
</div>

Adjusting the height and width of the carousel based on whether the photo is in landscape or portrait orientation

Answer №1

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