Custom Lightbox Prototype

Don · May 25, 2021, 5:31pm

This is already available as a theme component.

Hello,

My forum is really image heavy and I wanted to just make some changes in the default Magnific Popup lightbox to make it more friendly. I am not an expert but maybe is good for idea or someone more expert will make a Theme Component or something like that from this prototype. Thank you!

What is the difference?

Use black background
Use fixed container (image always on screen)
Remove paddings to view image in full window size
Move all buttons under .mfp-container div
Fixed buttons (always visible on screen)
Redesign buttons
Add dedicated zoom button (especially useful when you in gallery view more images) With this button you can zoom in and out the current image.
On my instance I hide the .mfp-title (caption) text. But the download link is visible.

</head>

<script type="text/discourse-plugin" version="0.8.18">
  $(document).ready(function() {
    $("body").click(function() {

      // Move close button under container div
      $(".mfp-container").append($(".mfp-close"));

      // Add zoom button
      if($(".full-size-btn").length <= 0){
        $(".mfp-container").append('<div class="full-size-btn mfp-prevent-close"><span class="plus-btn mfp-prevent-close" title="Zoom in image"><svg class="fa d-icon d-icon-plus svg-icon svg-node mfp-prevent-close" aria-hidden="true"><use xlink:href="#plus"></use></svg></span><span class="minus-btn mfp-prevent-close" title="Zoom out image"><svg class="fa d-icon d-icon-minus svg-icon svg-node mfp-prevent-close" aria-hidden="true"><use xlink:href="#minus"></use></svg></span></div>');
        
        // If you click the zoom button toggle class
        $(".full-size-btn").click(function () {
          $(".mfp-wrap").toggleClass("mfp-full-size-scrollbars");
        });
      }

      // Prevent zoom when you click the image
      $(document).on("click", ".mfp-img", function() {
        $(".mfp-img").css("max-height", $(window).height());
      });

      // If you zoom in and click the image or arrows than it goes to next image in normal size 
      $(".mfp-img, .mfp-arrow").click(function () {
        if ($(".mfp-wrap").hasClass("mfp-full-size-scrollbars")) {
          $(".mfp-wrap").removeClass("mfp-full-size-scrollbars");
        }
      });
    });
  });
</script>

COMMON / SCSS

.mfp-zoom-in.mfp-ready.mfp-bg {
  opacity: 1;
  background-color: #000000;
}

.mfp-container {
  position: fixed;
  overflow: auto;
  padding-left: 0px;
  padding-right: 0px;
}

.mfp-figure {
  &:after {
	top: 0;
	bottom: 0;
	box-shadow: none;
  }
}

img.mfp-img {
  padding: 0;
}

.mfp-force-scrollbars {
  .mfp-img {
	max-width: 100%;
  }
}

// Bottom bar

.mfp-bottom-bar {
  margin-top: 0;
  padding: 0.3em 0;
}

// Title

.mfp-title {
  overflow: hidden;
  white-space: nowrap;
  visibility: hidden;
  .image-source-link {
	right: 6px;
	position: absolute;
	visibility: visible;
  }
}

// Counter

.mfp-counter {
  right: 10px;
  top: -25px;
  min-width: 40px;
  color: #000000;
  background: #ffffff;
  border-radius: 4px;
  opacity: .65;
  font-weight: bold;
  text-align: center;
}

// Buttons

.mfp-close-btn-in .mfp-close {
  right: 15px;
  top: 15px;
  width: 44px;
  height: 44px;
  position: fixed;
  text-align: center;
  padding-right: 0;
  background: #ffffff;
  color: #000000;
  border-radius: 50%;
  -webkit-box-shadow: inset 0px 0px 0px 3px #000;
  -moz-box-shadow: inset 0px 0px 0px 3px #000;
  box-shadow: inset 0px 0px 0px 3px #000;
}

button.mfp-arrow {
  background: #ffffff;
  -webkit-transform: scale(0.55);
  transform: scale(0.55);
  border-radius: 50%;
  width: 90px;
  height: 90px;
  -webkit-box-shadow: inset 0px 0px 0px 6px #000;
  -moz-box-shadow: inset 0px 0px 0px 6px #000;
  box-shadow: inset 0px 0px 0px 6px #000;
  &:after {
	top: -3px;
  }
}

.mfp-arrow-left {
  left: 3px;
  &:before {
	display: none;
  }
  &:after {
	border-right: 17px solid #000;
	margin-left: 30px;
  }
}

.mfp-arrow-right {
  right: 3px;
  &:before {
	display: none;
  }
  &:after {
	border-left: 17px solid #000;
	margin-left: 40px;
  }
}

.full-size-btn {
  left: 15px;
  bottom: 25px;
  width: 44px;
  height: 44px;
  position: fixed;
  background-color: #fff;
  border-radius: 50%;
  color: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-up-1);
  z-index: 1046;
  cursor: -moz-pointer;
  cursor: -webkit-pointer;
  cursor: pointer;
  opacity: .65;
  -webkit-box-shadow: inset 0px 0px 0px 3px #000;
  -moz-box-shadow: inset 0px 0px 0px 3px #000;
  box-shadow: inset 0px 0px 0px 3px #000;
  &:hover {
	opacity: 1;
  }
  .minus-btn {
	display: none;
  }
}

// Custom zoom

.mfp-full-size-scrollbars {
  .mfp-img {
	max-width: none !important;
	max-height: none !important;
  }
  .mfp-figure {
	overflow: auto;
	figure {
	  overflow: auto;
	}
  }
  button.mfp-arrow {
	position: fixed;
  }
  .full-size-btn {
	.minus-btn {
	  display: block;
	}
	.plus-btn {
	  display: none;
	}
  }
}

Demo

Gallery (more photos)

Single photo

Don · July 2, 2021, 6:06am

Hello,
I cannot edit the OP so share here. I updated the CSS section. It fix a new core change i guess. Before I add .mfp-figure:after { box-shadow: none; } which cause a vertical white line on the right side of the image in lightbox. The other thing is shrink CSS a little bit and use some @mixin.

@mixin mfp-btn-shadow($size, $shadow, $br) {
  width: $size;
  height: $size;
  -webkit-box-shadow: $shadow;
  -moz-box-shadow: $shadow;
  box-shadow: $shadow;
  border-radius: $br;
}

@mixin mfp-bg-color-op() {
  background: #ffffff;
  color: #000000;
  opacity: .65;
}

.mfp-zoom-in.mfp-ready.mfp-bg {
  opacity: 1;
  background-color: #000000;
}

.mfp-container {
  position: fixed;
  overflow: auto;
  padding-left: 0px;
  padding-right: 0px;
}

.mfp-figure {
  &:after {
    top: 0;
    bottom: 0;
  }
}

img.mfp-img {
  padding: 0;
}

.mfp-force-scrollbars {
  .mfp-img {
    max-width: 100%;
  }
}

// Bottom bar

.mfp-bottom-bar {
  margin-top: 0;
  padding: 0.3em 0;
}

// Title

.mfp-title {
  overflow: hidden;
  white-space: nowrap;
  visibility: hidden;
  .image-source-link {
    right: 6px;
    position: absolute;
    visibility: visible;
  }
}

// Counter

.mfp-counter {
  right: 10px;
  top: -25px;
  min-width: 40px;
  @include mfp-bg-color-op();
  border-radius: 4px;
  font-weight: bold;
  text-align: center;
}

// Buttons

.mfp-close-btn-in .mfp-close {
  right: 15px;
  top: 15px;
  position: fixed;
  text-align: center;
  padding-right: 0;
  background: #ffffff;
  color: #000000;
  @include mfp-btn-shadow(44px, $shadow: inset 0px 0px 0px 3px #000, $br: 50%);
}

button.mfp-arrow {
  background: #ffffff;
  -webkit-transform: scale(0.55);
  transform: scale(0.55);
  @include mfp-btn-shadow(90px, $shadow: inset 0px 0px 0px 6px #000, $br: 50%);
  &:after {
    top: -3px;
  }
}

.mfp-arrow-left {
  left: 3px;
  &:before {
    display: none;
  }
  &:after {
    border-right: 17px solid #000;
    margin-left: 30px;
  }
}

.mfp-arrow-right {
  right: 3px;
  &:before {
    display: none;
  }
  &:after {
    border-left: 17px solid #000;
    margin-left: 40px;
  }
}

.full-size-btn {
  left: 15px;
  bottom: 25px;
  position: fixed;
  @include mfp-bg-color-op();
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-up-1);
  z-index: 1046;
  cursor: -moz-pointer;
  cursor: -webkit-pointer;
  cursor: pointer;
  @include mfp-btn-shadow(44px, $shadow: inset 0px 0px 0px 3px #000, $br: 50%);
  &:hover {
    opacity: 1;
  }
  .minus-btn {
    display: none;
  }
}

// Custom zoom

.mfp-full-size-scrollbars {
  .mfp-img {
    max-width: none !important;
    max-height: none !important;
  }
  .mfp-figure {
    overflow: auto;
    figure {
      overflow: auto;
    }
  }
  button.mfp-arrow {
    position: fixed;
  }
  .full-size-btn {
    .minus-btn {
      display: block;
    }
    .plus-btn {
      display: none;
    }
  }
}

codinghorror · July 5, 2021, 9:04pm

I made it a wiki post so you can edit it now

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