Refactor DataContainer component to the separate module.

5 files changed, 467 insertions, 0 deletions

diff --git a/kvision-modules/kvision-datacontainer/src/main/kotlin/pl/treksoft/kvision/data/DataComponent.kt b/kvision-modules/kvision-datacontainer/src/main/kotlin/pl/treksoft/kvision/data/DataComponent.kt
new file mode 100644
index 00000000..4e5b92d5
--- /dev/null
+++ b/kvision-modules/kvision-datacontainer/src/main/kotlin/pl/treksoft/kvision/data/DataComponent.kt
@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 2017-present Robert Jaros
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package pl.treksoft.kvision.data
+
+import kotlin.properties.ObservableProperty
+import kotlin.properties.ReadWriteProperty
+import kotlin.reflect.KProperty
+
+/**
+ * Base interface for observable data model.
+ */
+interface DataComponent {
+    /**
+     * @suppress
+     * Internal property
+     */
+    var container: DataUpdatable?
+
+    /**
+     * @suppress
+     * Internal function for observable properties
+     */
+    fun <T> obs(initialValue: T): ReadWriteProperty<Any?, T> = object : ObservableProperty<T>(initialValue) {
+        override fun afterChange(property: KProperty<*>, oldValue: T, newValue: T) {
+            container?.update()
+        }
+    }
+}
+
+/**
+ * Base abstract class for creating observable data model.
+ */
+abstract class BaseDataComponent : DataComponent {
+    override var container: DataUpdatable? = null
+}
diff --git a/kvision-modules/kvision-datacontainer/src/main/kotlin/pl/treksoft/kvision/data/DataContainer.kt b/kvision-modules/kvision-datacontainer/src/main/kotlin/pl/treksoft/kvision/data/DataContainer.kt
new file mode 100644
index 00000000..69851b29
--- /dev/null
+++ b/kvision-modules/kvision-datacontainer/src/main/kotlin/pl/treksoft/kvision/data/DataContainer.kt
@@ -0,0 +1,216 @@
+/*
+ * Copyright (c) 2017-present Robert Jaros
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package pl.treksoft.kvision.data
+
+import com.github.snabbdom.VNode
+import com.lightningkite.kotlin.observable.list.ObservableList
+import pl.treksoft.kvision.core.Component
+import pl.treksoft.kvision.core.Container
+import pl.treksoft.kvision.core.Widget
+import pl.treksoft.kvision.panel.VPanel
+
+/**
+ * Sorter types.
+ */
+enum class SorterType {
+    ASC,
+    DESC
+}
+
+/**
+ * A container class with support for observable data model.
+ *
+ * @constructor Creates DataContainer bound to given data model.
+ * @param M data model type
+ * @param C visual component type
+ * @param CONT container type
+ * @param model data model of type *ObservableList<M>*
+ * @param factory a function which creates component C from data model at given index
+ * @param container internal container
+ * @param containerAdd function to add component C to the internal container CONT
+ * @param filter a filtering function
+ * @param sorter a sorting function
+ * @param sorterType a sorting type selection function
+ * @param init an initializer extension function
+ */
+class DataContainer<M, C : Component, CONT : Container>(
+    private val model: ObservableList<M>,
+    private val factory: (M, Int, ObservableList<M>) -> C,
+    private val container: CONT,
+    private val containerAdd: (CONT.(C, M) -> Unit)? = null,
+    private val filter: ((M) -> Boolean)? = null,
+    private val sorter: ((M) -> Comparable<*>?)? = null,
+    private val sorterType: () -> SorterType = { SorterType.ASC },
+    init: (DataContainer<M, C, CONT>.() -> Unit)? = null
+) :
+    Widget(setOf()), Container, DataUpdatable {
+
+    override var visible
+        get() = container.visible
+        set(value) {
+            container.visible = value
+        }
+
+    internal var onUpdateHandler: (() -> Unit)? = null
+
+    init {
+        container.parent = this
+        model.onUpdate += {
+            update()
+        }
+        update()
+        @Suppress("LeakingThis")
+        init?.invoke(this)
+    }
+
+    override fun add(child: Component): Container {
+        this.container.add(child)
+        return this
+    }
+
+    override fun addAll(children: List<Component>): Container {
+        this.container.addAll(children)
+        return this
+    }
+
+    override fun remove(child: Component): Container {
+        this.container.remove(child)
+        return this
+    }
+
+    override fun removeAll(): Container {
+        this.container.removeAll()
+        return this
+    }
+
+    override fun getChildren(): List<Component> {
+        return this.container.getChildren()
+    }
+
+    override fun renderVNode(): VNode {
+        return this.container.renderVNode()
+    }
+
+    /**
+     * Updates view from the current data model state.
+     */
+    @Suppress("ComplexMethod")
+    override fun update() {
+        model.forEach {
+            if (it is DataComponent) it.container = this
+        }
+        singleRender {
+            container.removeAll()
+            val indexed = model.mapIndexed { index, m -> m to index }
+            val sorted = if (sorter != null) {
+                when (sorterType()) {
+                    SorterType.ASC ->
+                        indexed.sortedBy {
+                            @Suppress("UNCHECKED_CAST")
+                            sorter.invoke(it.first) as Comparable<Any>?
+                        }
+                    SorterType.DESC ->
+                        indexed.sortedByDescending {
+                            @Suppress("UNCHECKED_CAST")
+                            sorter.invoke(it.first) as Comparable<Any>?
+                        }
+                }
+            } else {
+                indexed
+            }
+            val filtered = if (filter != null) {
+                sorted.filter { filter.invoke(it.first) }
+            } else {
+                sorted
+            }
+            val children = filtered.map { p -> p.first to factory(p.first, p.second, model) }
+            if (containerAdd != null) {
+                children.forEach { child ->
+                    containerAdd.invoke(container, child.second, child.first)
+                }
+            } else {
+                container.addAll(children.map { it.second })
+            }
+        }
+        onUpdateHandler?.invoke()
+    }
+
+    /**
+     * Sets a notification handler called after every update.
+     * @param handler notification handler
+     * @return current container
+     */
+    fun onUpdate(handler: () -> Unit): DataContainer<M, C, CONT> {
+        onUpdateHandler = handler
+        return this
+    }
+
+    /**
+     * Clears notification handler.
+     * @return current container
+     */
+    fun clearOnUpdate(): DataContainer<M, C, CONT> {
+        onUpdateHandler = null
+        return this
+    }
+
+    companion object {
+        /**
+         * DSL builder extension function.
+         *
+         * It takes the same parameters as the constructor of the built component.
+         */
+        fun <M, C : Component, CONT : Container> Container.dataContainer(
+            model: ObservableList<M>,
+            factory: (M, Int, ObservableList<M>) -> C,
+            container: CONT,
+            containerAdd: (CONT.(C, M) -> Unit)? = null,
+            filter: ((M) -> Boolean)? = null,
+            sorter: ((M) -> Comparable<*>?)? = null,
+            sorterType: () -> SorterType = { SorterType.ASC },
+            init: (DataContainer<M, C, CONT>.() -> Unit)? = null
+        ): DataContainer<M, C, CONT> {
+            val dataContainer = DataContainer(model, factory, container, containerAdd, filter, sorter, sorterType, init)
+            this.add(dataContainer)
+            return dataContainer
+        }
+
+        /**
+         * DSL builder extension function with VPanel default.
+         *
+         * It takes the same parameters as the constructor of the built component.
+         */
+        fun <M, C : Component> Container.dataContainer(
+            model: ObservableList<M>,
+            factory: (M, Int, ObservableList<M>) -> C,
+            containerAdd: (VPanel.(C, M) -> Unit)? = null,
+            filter: ((M) -> Boolean)? = null,
+            sorter: ((M) -> Comparable<*>?)? = null,
+            sorterType: () -> SorterType = { SorterType.ASC },
+            init: (DataContainer<M, C, VPanel>.() -> Unit)? = null
+        ): DataContainer<M, C, VPanel> {
+            val dataContainer = DataContainer(model, factory, VPanel(), containerAdd, filter, sorter, sorterType, init)
+            this.add(dataContainer)
+            return dataContainer
+        }
+    }
+}
diff --git a/kvision-modules/kvision-datacontainer/src/main/kotlin/pl/treksoft/kvision/data/DataUpdatable.kt b/kvision-modules/kvision-datacontainer/src/main/kotlin/pl/treksoft/kvision/data/DataUpdatable.kt
new file mode 100644
index 00000000..7c54e864
--- /dev/null
+++ b/kvision-modules/kvision-datacontainer/src/main/kotlin/pl/treksoft/kvision/data/DataUpdatable.kt
@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2017-present Robert Jaros
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package pl.treksoft.kvision.data
+
+/**
+ * Interface for updatable container.
+ */
+interface DataUpdatable {
+    fun update()
+}
diff --git a/kvision-modules/kvision-datacontainer/src/test/kotlin/test/pl/treksoft/kvision/TestUtil.kt b/kvision-modules/kvision-datacontainer/src/test/kotlin/test/pl/treksoft/kvision/TestUtil.kt
new file mode 100644
index 00000000..9d86766c
--- /dev/null
+++ b/kvision-modules/kvision-datacontainer/src/test/kotlin/test/pl/treksoft/kvision/TestUtil.kt
@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2017-present Robert Jaros
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package test.pl.treksoft.kvision
+
+import org.w3c.dom.Element
+import pl.treksoft.jquery.jQuery
+import pl.treksoft.kvision.core.Widget
+import pl.treksoft.kvision.panel.Root
+import kotlin.browser.document
+import kotlin.test.assertEquals
+import kotlin.test.assertTrue
+
+interface TestSpec {
+    fun beforeTest()
+
+    fun afterTest()
+
+    fun run(code: () -> Unit) {
+        beforeTest()
+        code()
+        afterTest()
+    }
+}
+
+interface SimpleSpec : TestSpec {
+
+    override fun beforeTest() {
+    }
+
+    override fun afterTest() {
+    }
+
+}
+
+interface DomSpec : TestSpec {
+
+    override fun beforeTest() {
+        val fixture = "<div style=\"display: none\" id=\"pretest\">" +
+                "<div id=\"test\"></div></div>"
+        document.body?.insertAdjacentHTML("afterbegin", fixture)
+    }
+
+    override fun afterTest() {
+        val div = document.getElementById("pretest")
+        div?.let { jQuery(it).remove() }
+        jQuery(".modal-backdrop").remove()
+    }
+
+    fun assertEqualsHtml(expected: String?, actual: String?, message: String?) {
+        if (expected != null && actual != null) {
+            val exp = jQuery(expected)
+            val act = jQuery(actual)
+            val result = exp[0]?.isEqualNode(act[0])
+            if (result == true) {
+                assertTrue(result == true, message)
+            } else {
+                assertEquals(expected, actual, message)
+            }
+        } else {
+            assertEquals(expected, actual, message)
+        }
+    }
+}
+
+interface WSpec : DomSpec {
+
+    fun runW(code: (widget: Widget, element: Element?) -> Unit) {
+        run {
+            val root = Root("test", true)
+            val widget = Widget()
+            widget.id = "test_id"
+            root.add(widget)
+            val element = document.getElementById("test_id")
+            code(widget, element)
+        }
+    }
+
+}
+
+external fun require(name: String): dynamic
diff --git a/kvision-modules/kvision-datacontainer/src/test/kotlin/test/pl/treksoft/kvision/data/DataContainerSpec.kt b/kvision-modules/kvision-datacontainer/src/test/kotlin/test/pl/treksoft/kvision/data/DataContainerSpec.kt
new file mode 100644
index 00000000..931294d5
--- /dev/null
+++ b/kvision-modules/kvision-datacontainer/src/test/kotlin/test/pl/treksoft/kvision/data/DataContainerSpec.kt
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2017-present Robert Jaros
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package test.pl.treksoft.kvision.data
+
+import com.lightningkite.kotlin.observable.list.observableListOf
+import pl.treksoft.kvision.data.BaseDataComponent
+import pl.treksoft.kvision.data.DataContainer
+import pl.treksoft.kvision.html.Label
+import pl.treksoft.kvision.panel.Root
+import pl.treksoft.kvision.panel.VPanel
+import test.pl.treksoft.kvision.DomSpec
+import kotlin.browser.document
+import kotlin.test.Test
+
+class DataContainerSpec : DomSpec {
+
+    @Test
+    fun render() {
+        run {
+            val root = Root("test", true)
+
+            class Model(value: String) : BaseDataComponent() {
+                var value: String by obs(value)
+            }
+
+            val model = observableListOf(Model("First"), Model("Second"))
+            val container = DataContainer(model, { m, _, _ -> Label(m.value) }, VPanel())
+            root.add(container)
+            val element = document.getElementById("test")
+            assertEqualsHtml(
+                "<div style=\"display: flex; flex-direction: column;\"><div><span>First</span></div><div><span>Second</span></div></div>",
+                element?.innerHTML,
+                "Should render correct data container"
+            )
+            model.add(Model("Third"))
+            assertEqualsHtml(
+                "<div style=\"display: flex; flex-direction: column;\"><div><span>First</span></div><div><span>Second</span></div><div><span>Third</span></div></div>",
+                element?.innerHTML,
+                "Should render correct data container after model change"
+            )
+            model[1].value = "Changed"
+            assertEqualsHtml(
+                "<div style=\"display: flex; flex-direction: column;\"><div><span>First</span></div><div><span>Changed</span></div><div><span>Third</span></div></div>",
+                element?.innerHTML,
+                "Should render correct data container after model element change"
+            )
+        }
+    }
+
+}
\ No newline at end of file