| 1 |
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| 2 | /**
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| 3 | * Mixin that creates a new stacking context.
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| 4 | * see https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Positioning/Understanding_z_index/The_stacking_context
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| 5 | */
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| 6 | @mixin md-stacking-context() {
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| 7 | position: relative;
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| 8 |
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| 9 | // Use a transform to create a new stacking context.
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| 10 | transform: translate3d(0, 0, 0);
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| 11 | }
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| 12 |
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| 13 | /**
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| 14 | * This mixin hides an element visually.
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| 15 | * That means it's still accessible for screen-readers but not visible in view.
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| 16 | */
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| 17 | @mixin md-visually-hidden {
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| 18 | border: 0;
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| 19 | clip: rect(0 0 0 0);
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| 20 | height: 1px;
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| 21 | margin: -1px;
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| 22 | overflow: hidden;
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| 23 | padding: 0;
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| 24 | position: absolute;
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| 25 | text-transform: none;
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| 26 | width: 1px;
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| 27 | }
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| 28 |
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| 29 | /**
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| 30 | * Forces an element to grow to fit floated contents; used as as an alternative to
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| 31 | * `overflow: hidden;` because it doesn't cut off contents.
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| 32 | */
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| 33 | @mixin md-clearfix {
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| 34 | &::before, &::after {
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| 35 | content: '';
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| 36 | clear: both;
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| 37 | display: table;
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| 38 | }
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| 39 | }
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| 40 |
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| 41 | /**
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| 42 | * A mixin, which generates temporary ink ripple on a given component.
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| 43 | * When $bindToParent is set to true, it will check for the focused class on the same selector as you included
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| 44 | * that mixin.
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| 45 | * It is also possible to specify the color palette of the temporary ripple. By default it uses the
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| 46 | * accent palette for its background.
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| 47 | */
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| 48 | @mixin md-temporary-ink-ripple($component, $bindToParent: false, $palette: $md-accent) {
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| 49 | // TODO(mtlin): Replace when ink ripple component is implemented.
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| 50 | // A placeholder ink ripple, shown when keyboard focused.
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| 51 | .md-ink-ripple {
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| 52 | border-radius: 50%;
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| 53 | opacity: 0;
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| 54 | height: 48px;
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| 55 | left: 50%;
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| 56 | overflow: hidden;
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| 57 | pointer-events: none;
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| 58 | position: absolute;
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| 59 | top: 50%;
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| 60 | transform: translate(-50%, -50%);
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| 61 | transition: opacity ease 280ms, background-color ease 280ms;
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| 62 | width: 48px;
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| 63 | }
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| 64 |
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| 65 | // Fade in when radio focused.
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| 66 | #{if($bindToParent, '&', '')}.md-#{$component}-focused .md-ink-ripple {
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| 67 | opacity: 1;
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| 68 | background-color: md-color($palette, 0.26);
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| 69 | }
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| 70 |
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| 71 | // TODO(mtlin): This corresponds to disabled focus state, but it's unclear how to enter into
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| 72 | // this state.
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| 73 | #{if($bindToParent, '&', '')}.md-#{$component}-disabled .md-ink-ripple {
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| 74 | background-color: #000;
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| 75 | }
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| 76 | }
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