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LibWeb: Implement @supports selector(.foo)
This is defined in https://www.w3.org/TR/css-conditional-4/#at-supports-ext which just became a CR. :^)
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4 changed files with 93 additions and 9 deletions
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@ -25,6 +25,23 @@
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}
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}
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/* Selectors */
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@supports selector(.simple) {
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.p5 {
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background-color: lime;
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}
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}
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@supports selector(a#more > .complicated.case:nth-child(42)) {
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.p6 {
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background-color: lime;
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}
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}
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@supports selector(.easy) or selector(.....nope) {
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.p7 {
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background-color: lime;
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}
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}
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.negative {
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background-color: red;
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}
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@ -48,6 +65,21 @@
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background-color: lime;
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}
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}
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@supports selector(.....nope) {
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.n5 {
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background-color: lime;
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}
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}
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@supports selector(::-webkit-input-placeholder) {
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.n6 {
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background-color: lime;
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}
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}
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@supports selector(32) or selector(thing[foo??????bar]) {
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.n7 {
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background-color: lime;
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}
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}
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.success {
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background-color: lime;
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@ -63,16 +95,24 @@
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<p class="p2">@supports (color: green) and (width: 50px)</p>
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<p class="p3">@supports (color: green) or (flogwizzle: purple)</p>
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<p class="p4">@supports (not (flogwizzle: purple))</p>
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<p class="p5">@supports selector(.simple)</p>
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<p class="p6">@supports selector(a#more > .complicated.case:nth-child(42))</p>
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<p class="p7">@supports selector(.easy) or selector(.....nope)</p>
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<h1>These should all be red</h1>
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<p class="negative n1">@supports (not (color: green))</p>
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<p class="negative n2">@supports (color: green) and (width: 50px) or (color: green)</p>
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<p class="negative n3">@supports (width: yellow) or (height: green)</p>
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<p class="negative n4">@supports (flogwizzle: purple)</p>
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<p class="negative n5">@supports selector(.....nope)</p>
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<p class="negative n6">@supports selector(::-webkit-input-placeholder)</p>
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<p class="negative n7">@supports selector(32) or selector(thing[foo??????bar])</p>
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<h1>Testing CSS.supports(property, value)</h1>
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<p>These should all be green, meaning they returned true</p>
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<ul id="property-success">
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</ul>
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<p>These should all be red, meaning they returned false</p>
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<ul id="property-failure">
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</ul>
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@ -118,7 +158,10 @@
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"color: green",
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"(color: green) and (width: 50px)",
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"(color: green) or (flogwizzle: purple)",
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"not (flogwizzle: purple)"
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"not (flogwizzle: purple)",
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"selector(.simple)",
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"selector(a#more > .complicated.case:nth-child(42))",
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"selector(.easy) or selector(.....nope)"
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];
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for (let text of should_succeed) {
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let success = CSS.supports(text);
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@ -133,7 +176,10 @@
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"not (color: green)",
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"(color: green) and (width: 50px) or (color: green)",
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"(width: yellow) or (height: green)",
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"flogwizzle: purple"
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"flogwizzle: purple",
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"selector(.....nope)",
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"selector(::-webkit-input-placeholder)",
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"selector(32) or selector(thing[foo??????bar])"
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];
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for (let text of should_fail) {
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let success = CSS.supports(text);
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