Refactoring. API documentation.

11 files changed, 597 insertions, 38 deletions

diff --git a/src/main/kotlin/pl/treksoft/kvision/panel/DockPanel.kt b/src/main/kotlin/pl/treksoft/kvision/panel/DockPanel.kt
index e9670c1a..7f32a61c 100644
--- a/src/main/kotlin/pl/treksoft/kvision/panel/DockPanel.kt
+++ b/src/main/kotlin/pl/treksoft/kvision/panel/DockPanel.kt
@@ -1,7 +1,31 @@
+/*
+ * 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.panel
 
 import pl.treksoft.kvision.core.Component
 
+/**
+ * Dock layout directions.
+ */
 enum class SIDE {
     LEFT,
     RIGHT,
@@ -10,17 +34,51 @@ enum class SIDE {
     DOWN
 }
 
+/**
+ * The container with dock layout (up, down, left, right and center positions).
+ *
+ * @constructor
+ * @param classes a set of CSS class names
+ */
 open class DockPanel(classes: Set<String> = setOf()) : SimplePanel(classes = classes) {
+    /**
+     * @suppress
+     * Internal property.
+     */
     protected var left: Component? = null
+    /**
+     * @suppress
+     * Internal property.
+     */
     protected var center: Component? = null
+    /**
+     * @suppress
+     * Internal property.
+     */
     protected var right: Component? = null
+    /**
+     * @suppress
+     * Internal property.
+     */
     protected var up: Component? = null
+    /**
+     * @suppress
+     * Internal property.
+     */
     protected var down: Component? = null
 
+    /**
+     * @suppress
+     * Internal property.
+     */
     protected val mainContainer = FlexPanel(
         direction = FLEXDIR.COLUMN, justify = FLEXJUSTIFY.SPACEBETWEEN,
         alignItems = FLEXALIGNITEMS.STRETCH
     )
+    /**
+     * @suppress
+     * Internal property.
+     */
     protected val subContainer = FlexPanel(justify = FLEXJUSTIFY.SPACEBETWEEN, alignItems = FLEXALIGNITEMS.CENTER)
 
     init {
@@ -28,33 +86,39 @@ open class DockPanel(classes: Set<String> = setOf()) : SimplePanel(classes = cla
         mainContainer.add(subContainer, 2)
     }
 
+    /**
+     * Adds a component to the dock container.
+     * @param child child component
+     * @param position position in the dock
+     * @return current container
+     */
     @Suppress("MagicNumber")
-    open fun add(widget: Component, position: SIDE): DockPanel {
+    open fun add(child: Component, position: SIDE): DockPanel {
         when (position) {
             SIDE.UP -> {
                 up?.let { mainContainer.remove(it) }
-                up = widget
-                mainContainer.add(widget, 1, alignSelf = FLEXALIGNITEMS.CENTER)
+                up = child
+                mainContainer.add(child, 1, alignSelf = FLEXALIGNITEMS.CENTER)
             }
             SIDE.CENTER -> {
                 center?.let { subContainer.remove(it) }
-                center = widget
-                subContainer.add(widget, 2)
+                center = child
+                subContainer.add(child, 2)
             }
             SIDE.LEFT -> {
                 left?.let { subContainer.remove(it) }
-                left = widget
-                subContainer.add(widget, 1)
+                left = child
+                subContainer.add(child, 1)
             }
             SIDE.RIGHT -> {
                 right?.let { subContainer.remove(it) }
-                right = widget
-                subContainer.add(widget, 3)
+                right = child
+                subContainer.add(child, 3)
             }
             SIDE.DOWN -> {
                 down?.let { mainContainer.remove(it) }
-                down = widget
-                mainContainer.add(widget, 3, alignSelf = FLEXALIGNITEMS.CENTER)
+                down = child
+                mainContainer.add(child, 3, alignSelf = FLEXALIGNITEMS.CENTER)
             }
         }
         return this
@@ -78,6 +142,11 @@ open class DockPanel(classes: Set<String> = setOf()) : SimplePanel(classes = cla
         return this
     }
 
+    /**
+     * Removes child from given position in the dock.
+     * @param position position in the dock
+     * @return current container
+     */
     open fun removeAt(position: SIDE): DockPanel {
         when (position) {
             SIDE.UP -> {
diff --git a/src/main/kotlin/pl/treksoft/kvision/panel/FlexPanel.kt b/src/main/kotlin/pl/treksoft/kvision/panel/FlexPanel.kt
index ad3522ea..266612fe 100644
--- a/src/main/kotlin/pl/treksoft/kvision/panel/FlexPanel.kt
+++ b/src/main/kotlin/pl/treksoft/kvision/panel/FlexPanel.kt
@@ -1,25 +1,55 @@
+/*
+ * 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.panel
 
 import pl.treksoft.kvision.core.Component
+import pl.treksoft.kvision.core.StringPair
 import pl.treksoft.kvision.core.StyledComponent
 import pl.treksoft.kvision.core.WidgetWrapper
-import pl.treksoft.kvision.core.StringPair
 import pl.treksoft.kvision.utils.px
 
-enum class FLEXDIR(val dir: String) {
+/**
+ * CSS flexbox directions.
+ */
+enum class FLEXDIR(internal val dir: String) {
     ROW("row"),
     ROWREV("row-reverse"),
     COLUMN("column"),
     COLUMNREV("column-reverse")
 }
 
-enum class FLEXWRAP(val wrap: String) {
+/**
+ * CSS flexbox wrap modes.
+ */
+enum class FLEXWRAP(internal val wrap: String) {
     NOWRAP("nowrap"),
     WRAP("wrap"),
     WRAPREV("wrap-reverse")
 }
 
-enum class FLEXJUSTIFY(val justify: String) {
+/**
+ * CSS flexbox justification options.
+ */
+enum class FLEXJUSTIFY(internal val justify: String) {
     FLEXSTART("flex-start"),
     FLEXEND("flex-end"),
     CENTER("center"),
@@ -28,7 +58,10 @@ enum class FLEXJUSTIFY(val justify: String) {
     SPACEEVENLY("space-evenly")
 }
 
-enum class FLEXALIGNITEMS(val alignItems: String) {
+/**
+ * CSS flexbox alignments options.
+ */
+enum class FLEXALIGNITEMS(internal val alignItems: String) {
     FLEXSTART("flex-start"),
     FLEXEND("flex-end"),
     CENTER("center"),
@@ -36,7 +69,10 @@ enum class FLEXALIGNITEMS(val alignItems: String) {
     STRETCH("stretch")
 }
 
-enum class FLEXALIGNCONTENT(val alignContent: String) {
+/**
+ * CSS flexbox content alignment options.
+ */
+enum class FLEXALIGNCONTENT(internal val alignContent: String) {
     FLEXSTART("flex-start"),
     FLEXEND("flex-end"),
     CENTER("center"),
@@ -45,37 +81,68 @@ enum class FLEXALIGNCONTENT(val alignContent: String) {
     STRETCH("stretch")
 }
 
+/**
+ * The container with CSS flexbox layout support.
+ *
+ * @constructor
+ * @param direction flexbox direction
+ * @param wrap flexbox wrap
+ * @param justify flexbox content justification
+ * @param alignItems flexbox items alignment
+ * @param alignContent flexbox content alignment
+ * @param spacing spacing between columns/rows
+ * @param classes a set of CSS class names
+ */
 open class FlexPanel(
     direction: FLEXDIR? = null, wrap: FLEXWRAP? = null, justify: FLEXJUSTIFY? = null,
     alignItems: FLEXALIGNITEMS? = null, alignContent: FLEXALIGNCONTENT? = null,
     spacing: Int? = null, classes: Set<String> = setOf()
 ) : SimplePanel(classes) {
+
+    /**
+     * CSS flexbox direction.
+     */
     var direction = direction
         set(value) {
             field = value
             refreshSpacing()
             refresh()
         }
+    /**
+     * CSS flexbox wrap mode.
+     */
     var wrap = wrap
         set(value) {
             field = value
             refresh()
         }
+    /**
+     * CSS flexbox content justification.
+     */
     var justify = justify
         set(value) {
             field = value
             refresh()
         }
+    /**
+     * CSS flexbox items alignment.
+     */
     var alignItems = alignItems
         set(value) {
             field = value
             refresh()
         }
+    /**
+     * CSS flexbox content alignment.
+     */
     var alignContent = alignContent
         set(value) {
             field = value
             refresh()
         }
+    /**
+     * The spacing between columns/rows.
+     */
     var spacing = spacing
         set(value) {
             field = value
@@ -83,6 +150,16 @@ open class FlexPanel(
             refresh()
         }
 
+    /**
+     * Adds a component to the flexbox container.
+     * @param child child component
+     * @param order child flexbox ordering
+     * @param grow child flexbox grow
+     * @param shrink child flexbox shrink
+     * @param basis child flexbox basis
+     * @param alignSelf child self alignment
+     * @param classes a set of CSS class names
+     */
     @Suppress("LongParameterList")
     fun add(
         child: Component, order: Int? = null, grow: Int? = null, shrink: Int? = null,
@@ -123,7 +200,7 @@ open class FlexPanel(
     }
 
     override fun remove(child: Component): FlexPanel {
-        children.find { (it as FlexWrapper).delegate == child }?.let {
+        children.find { (it as FlexWrapper).wrapped == child }?.let {
             super.remove(it)
             it.dispose()
         }
@@ -162,7 +239,10 @@ open class FlexPanel(
     }
 }
 
-class FlexWrapper(
+/**
+ * Helper class form CSS flexbox layout.
+ */
+internal class FlexWrapper(
     delegate: Component, private val order: Int? = null, private val grow: Int? = null,
     private val shrink: Int? = null, private val basis: Int? = null,
     private val alignSelf: FLEXALIGNITEMS? = null,
diff --git a/src/main/kotlin/pl/treksoft/kvision/panel/GridPanel.kt b/src/main/kotlin/pl/treksoft/kvision/panel/GridPanel.kt
index 549f7631..b6f1d3a5 100644
--- a/src/main/kotlin/pl/treksoft/kvision/panel/GridPanel.kt
+++ b/src/main/kotlin/pl/treksoft/kvision/panel/GridPanel.kt
@@ -1,24 +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.panel
 
 import pl.treksoft.kvision.core.Component
-import pl.treksoft.kvision.core.WidgetWrapper
 import pl.treksoft.kvision.core.StringPair
+import pl.treksoft.kvision.core.WidgetWrapper
 
-enum class GRIDJUSTIFY(val justify: String) {
+/**
+ * CSS grid justification options.
+ */
+enum class GRIDJUSTIFY(internal val justify: String) {
     START("start"),
     END("end"),
     CENTER("center"),
     STRETCH("stretch")
 }
 
-enum class GRIDALIGN(val align: String) {
+/**
+ * CSS grid alignment options.
+ */
+enum class GRIDALIGN(internal val align: String) {
     START("start"),
     END("end"),
     CENTER("center"),
     STRETCH("stretch")
 }
 
-enum class GRIDJUSTIFYCONTENT(val justifyContent: String) {
+/**
+ * CSS grid content justification options.
+ */
+enum class GRIDJUSTIFYCONTENT(internal val justifyContent: String) {
     START("start"),
     END("end"),
     CENTER("center"),
@@ -28,7 +58,10 @@ enum class GRIDJUSTIFYCONTENT(val justifyContent: String) {
     SPACEEVENLY("space-evenly")
 }
 
-enum class GRIDALIGNCONTENT(val alignContent: String) {
+/**
+ * CSS grid content alignment options.
+ */
+enum class GRIDALIGNCONTENT(internal val alignContent: String) {
     START("start"),
     END("end"),
     CENTER("center"),
@@ -38,13 +71,34 @@ enum class GRIDALIGNCONTENT(val alignContent: String) {
     SPACEEVENLY("space-evenly")
 }
 
-enum class GRIDFLOW(val flow: String) {
+/**
+ * CSS grid flow options.
+ */
+enum class GRIDFLOW(internal val flow: String) {
     ROW("row"),
     COLUMN("column"),
     ROWDENSE("row dense"),
     COLUMNDENSE("column dense")
 }
 
+/**
+ * The container with CSS grid layout support.
+ *
+ * @constructor
+ * @param autoColumns grid auto columns
+ * @param autoRows grid auto rows
+ * @param autoFlow grid auto flow
+ * @param templateColumns grid columns template
+ * @param templateRows grid rows template
+ * @param templateAreas grid areas template
+ * @param columnGap grid column gap
+ * @param rowGap grid row gap
+ * @param justifyItems grid items justification
+ * @param alignItems grid items alignment
+ * @param justifyContent flexbox content justification
+ * @param alignContent flexbox content alignment
+ * @param classes a set of CSS class names
+ */
 open class GridPanel(
     autoColumns: String? = null, autoRows: String? = null, autoFlow: GRIDFLOW? = null,
     templateColumns: String? = null, templateRows: String? = null, templateAreas: List<String>? = null,
@@ -52,67 +106,117 @@ open class GridPanel(
     alignItems: GRIDALIGN? = null, justifyContent: GRIDJUSTIFYCONTENT? = null,
     alignContent: GRIDALIGNCONTENT? = null, classes: Set<String> = setOf()
 ) : SimplePanel(classes) {
+
+    /**
+     * CSS grid auto columns.
+     */
     var autoColumns = autoColumns
         set(value) {
             field = value
             refresh()
         }
+    /**
+     * CSS grid auto rows.
+     */
     var autoRows = autoRows
         set(value) {
             field = value
             refresh()
         }
+    /**
+     * CSS grid auto flow.
+     */
     var autoFlow = autoFlow
         set(value) {
             field = value
             refresh()
         }
+    /**
+     * CSS grid columns template.
+     */
     var templateColumns = templateColumns
         set(value) {
             field = value
             refresh()
         }
+    /**
+     * CSS grid rows template.
+     */
     var templateRows = templateRows
         set(value) {
             field = value
             refresh()
         }
+    /**
+     * CSS grid areas template.
+     */
     var templateAreas = templateAreas
         set(value) {
             field = value
             refresh()
         }
+    /**
+     * CSS grid column gap.
+     */
     var columnGap = columnGap
         set(value) {
             field = value
             refresh()
         }
+    /**
+     * CSS grid row gap.
+     */
     var rowGap = rowGap
         set(value) {
             field = value
             refresh()
         }
+    /**
+     * CSS grid items justification.
+     */
     var justifyItems = justifyItems
         set(value) {
             field = value
             refresh()
         }
+    /**
+     * CSS grid items alignment.
+     */
     var alignItems = alignItems
         set(value) {
             field = value
             refresh()
         }
+    /**
+     * CSS grid content justification.
+     */
     var justifyContent = justifyContent
         set(value) {
             field = value
             refresh()
         }
+    /**
+     * CSS grid content alignment.
+     */
     var alignContent = alignContent
         set(value) {
             field = value
             refresh()
         }
 
+    /**
+     * Adds a component to the grid container.
+     * @param child child component
+     * @param columnStart number of starting column
+     * @param rowStart number of starting row
+     * @param columnEnd number of ending column
+     * @param rowEnd number of ending row
+     * @param area grid area
+     * @param justifySelf child self justification
+     * @param alignSelf child self alignment
+     * @param classes a set of CSS class names
+     * @return current container
+     */
     @Suppress("LongParameterList")
     fun add(
         child: Component, columnStart: Int? = null, rowStart: Int? = null,
@@ -133,7 +237,7 @@ open class GridPanel(
     }
 
     override fun remove(child: Component): GridPanel {
-        children.find { (it as GridWrapper).delegate == child }?.let {
+        children.find { (it as GridWrapper).wrapped == child }?.let {
             super.remove(it)
             it.dispose()
         }
diff --git a/src/main/kotlin/pl/treksoft/kvision/panel/HPanel.kt b/src/main/kotlin/pl/treksoft/kvision/panel/HPanel.kt
index 841985ba..7639ca3b 100644
--- a/src/main/kotlin/pl/treksoft/kvision/panel/HPanel.kt
+++ b/src/main/kotlin/pl/treksoft/kvision/panel/HPanel.kt
@@ -1,5 +1,38 @@
+/*
+ * 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.panel
 
+/**
+ * The container with horizontal layout.
+ *
+ * This is a special case of the flexbox layout.
+ *
+ * @constructor
+ * @param wrap flexbox wrap
+ * @param justify flexbox content justification
+ * @param alignItems flexbox items alignment
+ * @param spacing spacing between columns/rows
+ * @param classes a set of CSS class names
+ */
 open class HPanel(
     wrap: FLEXWRAP? = null, justify: FLEXJUSTIFY? = null, alignItems: FLEXALIGNITEMS? = null, spacing: Int? = null,
     classes: Set<String> = setOf()
diff --git a/src/main/kotlin/pl/treksoft/kvision/panel/ResponsiveGridPanel.kt b/src/main/kotlin/pl/treksoft/kvision/panel/ResponsiveGridPanel.kt
index f4630298..93588617 100644
--- a/src/main/kotlin/pl/treksoft/kvision/panel/ResponsiveGridPanel.kt
+++ b/src/main/kotlin/pl/treksoft/kvision/panel/ResponsiveGridPanel.kt
@@ -1,3 +1,24 @@
+/*
+ * 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.panel
 
 import pl.treksoft.kvision.core.Component
@@ -6,31 +27,57 @@ import pl.treksoft.kvision.html.ALIGN
 import pl.treksoft.kvision.html.TAG
 import pl.treksoft.kvision.html.Tag
 
-enum class GRIDSIZE(val size: String) {
+/**
+ * Bootstrap grid sizes.
+ */
+enum class GRIDSIZE(internal val size: String) {
     XS("xs"),
     SM("sm"),
     MD("md"),
     LG("lg")
 }
 
-const val MAX_COLUMNS = 12
+internal const val MAX_COLUMNS = 12
 
 internal data class WidgetParam(val widget: Component, val size: Int, val offset: Int)
 
+/**
+ * The container with support for Bootstrap responsive grid layout.
+ *
+ * @constructor
+ * @param gridsize grid size
+ * @param rows number of rows
+ * @param cols number of columns
+ * @param align text align of grid cells
+ * @param classes a set of CSS class names
+ */
 open class ResponsiveGridPanel(
     private val gridsize: GRIDSIZE = GRIDSIZE.MD,
     private var rows: Int = 0, private var cols: Int = 0, align: ALIGN? = null,
     classes: Set<String> = setOf()
 ) : SimplePanel(classes) {
-    protected var align = align
+
+    /**
+     * Text align of grid cells.
+     */
+    var align = align
         set(value) {
             field = value
-            refresh()
+            refreshRowContainers()
         }
 
     internal val map = mutableMapOf<Int, MutableMap<Int, WidgetParam>>()
     private var auto: Boolean = true
 
+    /**
+     * Adds child component to the grid.
+     * @param child child component
+     * @param col column number
+     * @param row row number
+     * @param size cell size (colspan)
+     * @param offset cell offset
+     * @return this container
+     */
     open fun add(child: Component, col: Int, row: Int, size: Int = 0, offset: Int = 0): ResponsiveGridPanel {
         val cRow = if (row < 0) 0 else row
         val cCol = if (col < 0) 0 else col
@@ -68,6 +115,12 @@ open class ResponsiveGridPanel(
         return this
     }
 
+    /**
+     * Removes child component at given location (column, row).
+     * @param col column number
+     * @param row row number
+     * @return this container
+     */
     open fun removeAt(col: Int, row: Int): ResponsiveGridPanel {
         map[row]?.remove(col)
         refreshRowContainers()
@@ -75,7 +128,7 @@ open class ResponsiveGridPanel(
     }
 
     @Suppress("ComplexMethod", "NestedBlockDepth")
-    protected open fun refreshRowContainers() {
+    private fun refreshRowContainers() {
         singleRender {
             clearRowContainers()
             val num = MAX_COLUMNS / cols
diff --git a/src/main/kotlin/pl/treksoft/kvision/panel/Root.kt b/src/main/kotlin/pl/treksoft/kvision/panel/Root.kt
index 88634bea..e10fdc86 100644
--- a/src/main/kotlin/pl/treksoft/kvision/panel/Root.kt
+++ b/src/main/kotlin/pl/treksoft/kvision/panel/Root.kt
@@ -1,10 +1,43 @@
+/*
+ * 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.panel
 
 import com.github.snabbdom.VNode
 import pl.treksoft.kvision.KVManager
-import pl.treksoft.kvision.modal.Modal
 import pl.treksoft.kvision.core.StringBoolPair
+import pl.treksoft.kvision.modal.Modal
 
+/**
+ * Root container.
+ *
+ * This container is bound to the specific element in the main HTML file of the project.
+ * It is always the root of components tree and it is responsible for rendering and updating
+ * Snabbdom virtual DOM.
+ *
+ * @constructor
+ * @param id ID attribute of element in the main HTML file
+ * @param fixed if false, the container is rendered with Bootstrap "container-fluid" class,
+ * otherwise it's rendered with "container" class (default is false)
+ */
 class Root(id: String, private val fixed: Boolean = false) : SimplePanel() {
     private val modals: MutableList<Modal> = mutableListOf()
     private var rootVnode: VNode = renderVNode()
@@ -18,7 +51,7 @@ class Root(id: String, private val fixed: Boolean = false) : SimplePanel() {
     }
 
     override fun render(): VNode {
-        return kvh("div#" + id, childrenVNodes() + modalsVNodes())
+        return render("div#" + id, childrenVNodes() + modalsVNodes())
     }
 
     internal fun addModal(modal: Modal) {
diff --git a/src/main/kotlin/pl/treksoft/kvision/panel/SimplePanel.kt b/src/main/kotlin/pl/treksoft/kvision/panel/SimplePanel.kt
index 51c42a06..b210f2cb 100644
--- a/src/main/kotlin/pl/treksoft/kvision/panel/SimplePanel.kt
+++ b/src/main/kotlin/pl/treksoft/kvision/panel/SimplePanel.kt
@@ -1,3 +1,24 @@
+/*
+ * 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.panel
 
 import com.github.snabbdom.VNode
@@ -5,17 +26,32 @@ import pl.treksoft.kvision.core.Component
 import pl.treksoft.kvision.core.Container
 import pl.treksoft.kvision.core.Widget
 
+/**
+ * Basic container class, rendered as a DIV element with all children directly within.
+ *
+ * @constructor
+ * @param classes a set of CSS class names
+ */
 open class SimplePanel(classes: Set<String> = setOf()) : Widget(classes), Container {
     internal val children: MutableList<Component> = mutableListOf()
 
     override fun render(): VNode {
-        return kvh("div", childrenVNodes())
+        return render("div", childrenVNodes())
     }
 
+    /**
+     * Returns the array of the children Snabbdom vnodes.
+     * @return array of children vnodes
+     */
     protected open fun childrenVNodes(): Array<VNode> {
         return children.filter { it.visible }.map { it.renderVNode() }.toTypedArray()
     }
 
+    /**
+     * Protected and final method to add given component to the current container.
+     * @param child child component
+     * @return current container
+     */
     protected fun addInternal(child: Component): SimplePanel {
         children.add(child)
         child.parent = this
diff --git a/src/main/kotlin/pl/treksoft/kvision/panel/SplitPanel.kt b/src/main/kotlin/pl/treksoft/kvision/panel/SplitPanel.kt
index 10595a37..cfeadd58 100644
--- a/src/main/kotlin/pl/treksoft/kvision/panel/SplitPanel.kt
+++ b/src/main/kotlin/pl/treksoft/kvision/panel/SplitPanel.kt
@@ -1,3 +1,24 @@
+/*
+ * 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.
+ */
 pack