Bootstrap Navbar component.

1 files changed, 171 insertions, 0 deletions

diff --git a/src/main/kotlin/pl/treksoft/kvision/navbar/Navbar.kt b/src/main/kotlin/pl/treksoft/kvision/navbar/Navbar.kt
new file mode 100644
index 00000000..ee131731
--- /dev/null
+++ b/src/main/kotlin/pl/treksoft/kvision/navbar/Navbar.kt
@@ -0,0 +1,171 @@
+/*
+ * Copyright (c) 2018. Robert Jaros
+ */
+package pl.treksoft.kvision.navbar
+
+import com.github.snabbdom.VNode
+import pl.treksoft.kvision.core.Component
+import pl.treksoft.kvision.core.Container
+import pl.treksoft.kvision.core.StringBoolPair
+import pl.treksoft.kvision.core.StringPair
+import pl.treksoft.kvision.html.Link
+import pl.treksoft.kvision.html.TAG
+import pl.treksoft.kvision.html.Tag.Companion.tag
+import pl.treksoft.kvision.panel.SimplePanel
+
+/**
+ * Navbar types.
+ */
+enum class NavbarType(internal val navbarType: String) {
+    FIXEDTOP("navbar-fixed-top"),
+    FIXEDBOTTOM("navbar-fixed-bottom"),
+    STATICTOP("navbar-static-top")
+}
+
+/**
+ * The Bootstrap Navbar container.
+ *
+ * @constructor
+ * @param label the navbar label
+ * @param type the navbar type
+ * @param inverted determines if the navbar is inverted
+ * @param classes a set of CSS class names
+ * @param init an initializer extension function
+ */
+open class Navbar(
+    label: String = "",
+    type: NavbarType? = null,
+    inverted: Boolean = false,
+    classes: Set<String> = setOf(), init: (Navbar.() -> Unit)? = null
+) : SimplePanel(classes) {
+
+    /**
+     * The navbar header label.
+     */
+    var label
+        get() = brandLink.label
+        set(value) {
+            brandLink.label = value
+        }
+
+    /**
+     * The navbar type.
+     */
+    var type by refreshOnUpdate(type)
+    /**
+     * Determines if the navbar is inverted.
+     */
+    var inverted by refreshOnUpdate(inverted)
+
+    private val idc = "kv_navbar_$counter"
+
+    private val brandLink = Link(label, "#", classes = setOf("navbar-brand"))
+    protected val container = SimplePanel(setOf("collapse", "navbar-collapse")) {
+        id = idc
+    }
+
+    init {
+        val c = SimplePanel(setOf("container-fluid")) {
+            simplePanel(setOf("navbar-header")) {
+                add(NavbarButton(idc))
+                add(brandLink)
+            }
+            add(container)
+        }
+        addInternal(c)
+        counter++
+        @Suppress("LeakingThis")
+        init?.invoke(this)
+    }
+
+    override fun render(): VNode {
+        return render("nav", childrenVNodes())
+    }
+
+    override fun add(child: Component): Navbar {
+        container.add(child)
+        return this
+    }
+
+    override fun addAll(children: List<Component>): Navbar {
+        container.addAll(children)
+        return this
+    }
+
+    override fun remove(child: Component): Navbar {
+        container.remove(child)
+        return this
+    }
+
+    override fun removeAll(): Navbar {
+        container.removeAll()
+        return this
+    }
+
+    override fun getChildren(): List<Component> {
+        return container.getChildren()
+    }
+
+    override fun getSnClass(): List<StringBoolPair> {
+        val cl = super.getSnClass().toMutableList()
+        cl.add("navbar" to true)
+        type?.let {
+            cl.add(it.navbarType to true)
+        }
+        if (inverted) {
+            cl.add("navbar-inverse" to true)
+        } else {
+            cl.add("navbar-default" to true)
+        }
+        return cl
+    }
+
+    companion object {
+        internal var counter = 0
+
+        /**
+         * DSL builder extension function.
+         *
+         * It takes the same parameters as the constructor of the built component.
+         */
+        fun Container.navbarPanel(
+            text: String = "",
+            type: NavbarType? = null,
+            inverted: Boolean = false,
+            classes: Set<String> = setOf(), init: (Navbar.() -> Unit)? = null
+        ): Navbar {
+            val navbarPanel = Navbar(text, type, inverted, classes, init)
+            this.add(navbarPanel)
+            return navbarPanel
+        }
+    }
+}
+
+/**
+ * @suppress
+ * Internal component.
+ * The Bootstrap Navbar header button.
+ */
+internal class NavbarButton(private val idc: String, toggle: String = "Toggle navigation") :
+    SimplePanel(setOf("navbar-toggle", "collapsed")) {
+
+    init {
+        tag(TAG.SPAN, toggle, classes = setOf("sr-only"))
+        tag(TAG.SPAN, classes = setOf("icon-bar"))
+        tag(TAG.SPAN, classes = setOf("icon-bar"))
+        tag(TAG.SPAN, classes = setOf("icon-bar"))
+    }
+
+    override fun render(): VNode {
+        return render("button", childrenVNodes())
+    }
+
+    override fun getSnAttrs(): List<StringPair> {
+        return super.getSnAttrs() + listOf(
+            "type" to "button",
+            "data-toggle" to "collapse",
+            "data-target" to "#$idc",
+            "aria-expanded" to "false"
+        )
+    }
+}