web (breaking change): move top level functions for css selectors to new SelectorsScope (#1504)

* web (breaking change): move top level functions for css selectors to new SelectorsScope

These functions don't need to be on top level because their purpose is to be used within StyleSheet

* web: update CSSSelector plus operator

Co-authored-by: Oleksandr Karpovich <oleksandr.karpovich@jetbrains.com>

web/core/src/jsMain/kotlin/org/jetbrains/compose/web/css/CSSBuilder.kt

@@ -1,7 +1,6 @@
 package org.jetbrains.compose.web.css
 
 import org.jetbrains.compose.web.css.selectors.CSSSelector
-import org.jetbrains.compose.web.css.selectors.desc
 
 interface CSSBuilder : CSSStyleRuleBuilder, GenericStyleSheetBuilder<CSSBuilder> {
     val root: CSSSelector

web/core/src/jsMain/kotlin/org/jetbrains/compose/web/css/StyleSheet.kt

@@ -6,7 +6,6 @@ import androidx.compose.runtime.getValue
 import androidx.compose.runtime.setValue
 import org.jetbrains.compose.web.ExperimentalComposeWebStyleApi
 import org.jetbrains.compose.web.css.selectors.CSSSelector
-import org.jetbrains.compose.web.css.selectors.className
 import org.jetbrains.compose.web.dom.Style
 import kotlin.properties.ReadOnlyProperty
 import kotlin.reflect.KProperty
@@ -100,7 +99,7 @@ open class StyleSheet(
         return if (cssRule != null) {
             cssRule.selector.unsafeCast<CSSSelector.CSSClass>().className
         } else {
-            val classNameSelector = className("auto-${counter++}")
+            val classNameSelector = CSSSelector.CSSClass("auto-${counter++}")
             selfSelector.selector = classNameSelector
             add(classNameSelector, style)
             newCssRules.forEach { add(it) }
@@ -115,7 +114,7 @@ open class StyleSheet(
             property: KProperty<*>
         ): ReadOnlyProperty<Any?, String> {
             val sheetName = if (usePrefix) "${sheet::class.simpleName}-" else ""
-            val selector = className("$sheetName${property.name}")
+            val selector = CSSSelector.CSSClass("$sheetName${property.name}")
             val (properties, rules) = buildCSS(selector, selector, cssBuilder)
             sheet.add(selector, properties)
             rules.forEach { sheet.add(it) }

web/core/src/jsMain/kotlin/org/jetbrains/compose/web/css/StyleSheetBuilder.kt

@@ -10,7 +10,7 @@ interface CSSRulesHolder {
     }
 }
 
-interface GenericStyleSheetBuilder<TBuilder> : CSSRulesHolder {
+interface GenericStyleSheetBuilder<TBuilder> : CSSRulesHolder, SelectorsScope {
     fun buildRules(
         rulesBuild: GenericStyleSheetBuilder<TBuilder>.() -> Unit
     ): CSSRuleDeclarationList
@@ -34,6 +34,61 @@ interface GenericStyleSheetBuilder<TBuilder> : CSSRulesHolder {
     }
 }
 
+interface SelectorsScope {
+    fun selector(selector: String): CSSSelector = CSSSelector.Raw(selector)
+    fun combine(vararg selectors: CSSSelector): CSSSelector = CSSSelector.Combine(selectors.toMutableList())
+
+    operator fun CSSSelector.plus(selector: CSSSelector): CSSSelector {
+        if (this is CSSSelector.Combine) {
+            this.selectors.add(selector)
+            return this
+        }
+        return if (selector is CSSSelector.Combine) {
+            selector.selectors.add(0, this)
+            selector
+        } else {
+            combine(this, selector)
+        }
+    }
+
+    operator fun CSSSelector.plus(selector: String): CSSSelector {
+        if (this is CSSSelector.Combine) {
+            this.selectors.add(selector(selector))
+            return this
+        }
+
+        return combine(this, selector(selector))
+    }
+
+    fun universal(): CSSSelector = CSSSelector.Universal
+    fun type(type: String): CSSSelector = CSSSelector.Type(type)
+    fun className(className: String): CSSSelector = CSSSelector.CSSClass(className)
+    fun id(id: String): CSSSelector = CSSSelector.Id(id)
+    fun attr(
+        name: String,
+        value: String? = null,
+        operator: CSSSelector.Attribute.Operator = CSSSelector.Attribute.Operator.Equals,
+        caseSensitive: Boolean = true
+    ): CSSSelector = CSSSelector.Attribute(name, value, operator, caseSensitive)
+    fun group(vararg selectors: CSSSelector): CSSSelector = CSSSelector.Group(selectors.toList())
+
+    @Deprecated("Replaced with `desc`", ReplaceWith("desc(parent, selected)"))
+    fun descendant(parent: CSSSelector, selected: CSSSelector): CSSSelector = desc(parent, selected)
+    fun desc(parent: CSSSelector, selected: CSSSelector): CSSSelector = CSSSelector.Descendant(parent, selected)
+    fun desc(parent: CSSSelector, selected: String): CSSSelector = desc(parent, selector(selected))
+    fun desc(parent: String, selected: CSSSelector): CSSSelector = desc(selector(parent), selected)
+    fun desc(parent: String, selected: String): CSSSelector = desc(selector(parent), selector(selected))
+
+    fun child(parent: CSSSelector, selected: CSSSelector): CSSSelector =
+        CSSSelector.Child(parent, selected)
+    fun sibling(sibling: CSSSelector, selected: CSSSelector): CSSSelector = CSSSelector.Sibling(sibling, selected)
+    fun adjacent(sibling: CSSSelector, selected: CSSSelector): CSSSelector = CSSSelector.Adjacent(sibling, selected)
+
+    fun not(selector: CSSSelector): CSSSelector = CSSSelector.PseudoClass.Not(selector)
+    fun hover(): CSSSelector = CSSSelector.PseudoClass.hover
+    fun hover(selector: CSSSelector): CSSSelector = selector + hover()
+}
+
 interface StyleSheetBuilder : CSSRulesHolder, GenericStyleSheetBuilder<CSSStyleRuleBuilder> {
     override fun style(selector: CSSSelector, cssRule: CSSStyleRuleBuilder.() -> Unit) {
         add(selector, buildCSSStyleRule(cssRule))

web/core/src/jsMain/kotlin/org/jetbrains/compose/web/css/selectors/CSSSelectors.kt

@@ -254,56 +254,6 @@ abstract class CSSSelector {
     }
 }
 
-fun selector(selector: String) = CSSSelector.Raw(selector)
-fun combine(vararg selectors: CSSSelector) = CSSSelector.Combine(selectors.toMutableList())
-operator fun CSSSelector.plus(selector: CSSSelector) = combine(this, selector)
-operator fun CSSSelector.plus(selector: String) = combine(this, selector(selector))
-operator fun CSSSelector.plus(selector: CSSSelector.Combine): CSSSelector.Combine {
-    selector.selectors.add(0, this)
-    return selector
-}
-operator fun CSSSelector.Combine.plus(selector: CSSSelector): CSSSelector.Combine {
-    this.selectors.add(selector)
-    return this
-}
-operator fun CSSSelector.Combine.plus(selector: String): CSSSelector.Combine {
-    this.selectors.add(selector(selector))
-    return this
-}
-
-fun universal() = CSSSelector.Universal
-fun type(type: String) = CSSSelector.Type(type)
-fun className(className: String) = CSSSelector.CSSClass(className)
-fun id(id: String) = CSSSelector.Id(id)
-fun attr(
-    name: String,
-    value: String? = null,
-    operator: CSSSelector.Attribute.Operator = CSSSelector.Attribute.Operator.Equals,
-    caseSensitive: Boolean = true
-) = CSSSelector.Attribute(name, value, operator, caseSensitive)
-fun group(vararg selectors: CSSSelector) = CSSSelector.Group(selectors.toList())
-
-@Deprecated("Replaced with `desc`", ReplaceWith("desc(parent, selected)"))
-fun descendant(parent: CSSSelector, selected: CSSSelector) =
-    desc(parent, selected)
-fun desc(parent: CSSSelector, selected: CSSSelector) =
-    CSSSelector.Descendant(parent, selected)
-fun desc(parent: CSSSelector, selected: String) =
-    desc(parent, selector(selected))
-fun desc(parent: String, selected: CSSSelector) =
-    desc(selector(parent), selected)
-fun desc(parent: String, selected: String) =
-    desc(selector(parent), selector(selected))
-
-fun child(parent: CSSSelector, selected: CSSSelector) =
-    CSSSelector.Child(parent, selected)
-fun sibling(sibling: CSSSelector, selected: CSSSelector) = CSSSelector.Sibling(sibling, selected)
-fun adjacent(sibling: CSSSelector, selected: CSSSelector) = CSSSelector.Adjacent(sibling, selected)
-
-fun not(selector: CSSSelector) = CSSSelector.PseudoClass.Not(selector)
-fun hover() = CSSSelector.PseudoClass.hover
-fun hover(selector: CSSSelector) = selector + hover()
-
 @Suppress("SuspiciousEqualsCombination")
 private fun contains(that: CSSSelector, other: CSSSelector, children: List<CSSSelector>, strict: Boolean): Boolean {
     return that === other || // exactly same selector

web/core/src/jsTest/kotlin/CSSStylesheetTests.kt

@@ -7,8 +7,6 @@ package org.jetbrains.compose.web.core.tests
 
 import kotlinx.browser.window
 import org.jetbrains.compose.web.css.*
-import org.jetbrains.compose.web.css.selectors.*
-import org.jetbrains.compose.web.css.selectors.plus
 import org.jetbrains.compose.web.dom.Div
 import org.jetbrains.compose.web.dom.stringPresentation
 import org.w3c.dom.HTMLElement

web/core/src/jsTest/kotlin/CssSelectorsTests.kt

@@ -25,22 +25,31 @@ class CssSelectorsTests {
 
     @Test
     fun testPlusOperator() = runTest {
-        assertEquals("h1:hover", (selector("h1") + hover()).toString())
-
-        assertEquals(
-            "h1:hover:enabled",
-            ((selector("h1") + hover()) + CSSSelector.PseudoClass.enabled).toString()
-        )
-
-        assertEquals(
-            "h1:hover",
-            (selector("h1") + ":hover").toString()
-        )
-
-        assertEquals(
-            "h1:hover:enabled",
-            ((selector("h1") + hover()) + ":enabled").toString()
-        )
+        val selectorScope = object : SelectorsScope {}
+
+        with(selectorScope) {
+            assertEquals("h1:hover", (selector("h1") + hover()).toString())
+
+            assertEquals(
+                "h1:hover:enabled",
+                ((selector("h1") + hover()) + CSSSelector.PseudoClass.enabled).toString()
+            )
+
+            assertEquals(
+                "h1:hover",
+                (selector("h1") + ":hover").toString()
+            )
+
+            assertEquals(
+                "h1:hover:enabled",
+                ((selector("h1") + hover()) + ":enabled").toString()
+            )
+
+            assertEquals(
+                "h1:hover:enabled",
+                (selector("h1") + combine(hover(), selector(":enabled"))).toString()
+            )
+        }
     }
 
     @Test

web/integration-core/src/jsMain/kotlin/androidx/compose/web/sample/Sample.kt

@@ -8,9 +8,6 @@ import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
-import org.jetbrains.compose.web.css.selectors.className
-import org.jetbrains.compose.web.css.selectors.hover
-import org.jetbrains.compose.web.css.selectors.plus
 import org.jetbrains.compose.web.renderComposableInBody
 import org.jetbrains.compose.web.sample.tests.launchTestCase
 import kotlinx.browser.window