91 lines
2.7 KiB
Plaintext
91 lines
2.7 KiB
Plaintext
/**
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* Loading indicator for search widget
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*
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* By adding a class on the parent search form
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* <div id="simpleSearch" class="search-form__loader"></div>
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* A pseudo element is added via ':after' that mimics the appearance
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* of the search suggestion and contains the text
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* "Loading search suggestions" (message key: vector-search-loader).
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*
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* After appearing for more than a second, a progress-bar animation appears
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* above the loading indicator.
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*
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**/
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@import '../../common/variables.less';
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// Derived from @size-search-figure in WVUI.
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// https://gerrit.wikimedia.org/r/plugins/gitiles/wvui/+/e32b54f3b8d1118b6a25cdc46b5638d6d048533e/src/themes/wikimedia-ui.less#21
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@size-search-figure: unit( 36px / @font-size-browser / @font-size-base, em );
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// Derived from @padding-vertical-typeahead-suggestion: 8px in WVUI.
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// https://gerrit.wikimedia.org/r/plugins/gitiles/wvui/+/e32b54f3b8d1118b6a25cdc46b5638d6d048533e/src/themes/wikimedia-ui.less#27
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@padding-vertical-typeahead-suggestion: 8px;
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.search-form__loader:after {
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// Set the i18n message.
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content: attr( data-loading-msg );
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//
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// Position loader below the input.
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display: flex;
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flex-direction: column;
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justify-content: center;
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position: absolute;
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top: 100%;
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width: 100%;
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height: ~'calc( @{padding-vertical-typeahead-suggestion} + @{size-search-figure} + @{padding-vertical-typeahead-suggestion} )';
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//
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// Ensure the 100% width doesn't extend beyond the input.
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box-sizing: border-box;
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//
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// Align loader style with input.
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border: @border-base;
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border-top-width: 0; // Hide the top border so it doesn't interfere with focus state.
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border-radius: 0 0 @border-radius-base @border-radius-base;
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box-shadow: @box-shadow-base;
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padding-left: @size-search-figure;
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//
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// Hide text in case it extends beyond the input.
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overflow: hidden;
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white-space: nowrap;
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text-overflow: ellipsis;
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//
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// Prevent Vector tabs from overlapping T254695#6461044
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z-index: @z-index-search-loader;
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//
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// Add a progress-bar to the loading indicator,
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// but only show it animating after 1 second of loading.
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background: /*image*/ linear-gradient( 90deg, @colorProgressive 0%, @colorProgressive 100% )
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/* position / size*/ -10% 0 ~'/' 0 2px
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/* repeat */ no-repeat,/*second bg, just color*/#fff;
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//
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// Animates the progress-bar.
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animation: /* name */ search-loader-progress-bar
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/* duration */ 1200ms
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/* timing function */ linear
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/* delay */ 500ms
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/* iteration count */ infinite
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/* fill direction */ alternate;
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}
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@keyframes search-loader-progress-bar {
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0% {
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background-size: 0 2px;
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background-position: -10% 0;
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}
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30% {
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background-size: 30% 2px;
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background-position: -10% 0;
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}
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70% {
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background-size: 30% 2px;
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background-position: 110% 0;
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}
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100% {
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background-size: 0 2px;
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background-position: 110% 0;
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}
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}
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