attachment-preview { width: 100%; padding: 2px 0px 4px 0px; display: flex; flex-direction: column; align-items: center; transition: height 0.2s ease-in-out, opacity 0.2s ease-in-out; // This is set in JS // Suppose it's A4 size --width-height-ratio: 0.7070707071; --min-height: 56px; --max-height: 600px; // This is set in JS --preview-width: 400; --preview-height: calc(min(var(--preview-width) / var(--width-height-ratio), var(--max-height))); max-height: var(--max-height); @include focus-ring; &[hidden] { display: none; } #preview { display: inline-block; width: 100%; height: 100%; // Make sure minimal height before loading min-height: var(--preview-height); border-radius: 5px; border: var(--material-border-quarternary); pointer-events: none; } #next-preview { display: none; } .icon { // Force the image to load, otherwise the first dragging will not show a drag image display: inline-block; opacity: 0; width: 100%; height: 1px; max-height: 1px; margin-bottom: -1px; } $preview-icons: ( file: "document", pdf: "attachment-pdf", snapshot: "attachment-snapshot", epub: "attachment-epub", image: "document", ); @each $cls, $icon in $preview-icons { &[data-preview-type="#{$cls}"] { .icon { @include focus-states using ($color) { @include svgicon($icon, $color, "28", "item-type"); } } } } .btn-container { display: flex; justify-content: center; gap: 6px; position: relative; margin-top: -28px; bottom: 6px; toolbarbutton { padding: 4px; background-color: rgba(0,0,0,0.5); &:hover { background-color: rgba(0,0,0,0.4); } &:active, &[selected] { background-color: rgba(0,0,0,0.3); } &:disabled, &[disabled="true"] { background-color: rgba(0,0,0,0.2); } } } .btn-prev { @include svgicon-menu("arrow-left", "universal", "20", false, false, (#fff, #fff)); } .btn-next { @include svgicon-menu("arrow-right", "universal", "20", false, false, (#fff, #fff)); } .drag-container { width: 64px; height: 64px; position: absolute; top: -10000px; .icon { opacity: 1; height: 56px; max-height: 56px; margin-bottom: 0px; } } &[data-preview-type=pdf] { #preview { border: 0; } .btn-container { // PDF page has 3px vertical padding so we offset 6px more bottom: 12px; } } &[data-preview-type=snapshot] { #preview { pointer-events: all; } .btn-container { display: none; } } $other-preview-types: ( image, video, audio, ); @each $cls in $other-preview-types { ##{$cls}-preview { display: none; width: 100%; height: 100%; object-fit: contain; border-radius: 5px; border: var(--material-border-quarternary); max-height: var(--preview-height); min-height: var(--min-height); max-width: calc((var(--preview-height) - 2px) * var(--width-height-ratio)); } &[data-preview-type="#{$cls}"] { #preview { display: none; } .btn-container { display: none; } ##{$cls}-preview { display: inline-block; } } } &:not(:hover) { .btn-container { display: none; } } &[data-preview-status=fail] { #preview { display: none; } .media-preview { display: none !important; } .icon { display: inline-block; opacity: 1; height: 56px; max-height: 56px; margin-bottom: 0px; } .btn-container { display: none; } } &[data-preview-status=loading] { opacity: 0; #preview { opacity: 0; } } }