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/*
* 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.Container
/**
* Dock layout directions.
*/
enum class Side {
LEFT,
RIGHT,
CENTER,
UP,
DOWN
}
/**
* The container with dock layout (up, down, left, right and center positions).
*
* @constructor
* @param classes a set of CSS class names
* @param init an initializer extension function
*/
open class DockPanel(classes: Set<String> = setOf(), init: (DockPanel.() -> Unit)? = null) :
SimplePanel(classes = classes) {
/**
* @suppress
* Internal property.
*/
protected var leftComponent: Component? = null
/**
* @suppress
* Internal property.
*/
protected var centerComponent: Component? = null
/**
* @suppress
* Internal property.
*/
protected var rightComponent: Component? = null
/**
* @suppress
* Internal property.
*/
protected var upComponent: Component? = null
/**
* @suppress
* Internal property.
*/
protected var downComponent: 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 {
this.addInternal(mainContainer)
mainContainer.add(subContainer, 2)
@Suppress("LeakingThis")
init?.invoke(this)
}
/**
* Adds a component to the dock container.
* @param child child component
* @param position position in the dock
* @return current container
*/
@Suppress("MagicNumber", "ComplexMethod")
open fun add(child: Component, position: Side): DockPanel {
when (position) {
Side.UP -> {
upComponent?.let { mainContainer.remove(it) }
upComponent = child
mainContainer.add(child, 1, alignSelf = FlexAlignItems.CENTER)
}
Side.CENTER -> {
centerComponent?.let { subContainer.remove(it) }
centerComponent = child
subContainer.add(child, 2)
}
Side.LEFT -> {
leftComponent?.let { subContainer.remove(it) }
leftComponent = child
subContainer.add(child, 1)
}
Side.RIGHT -> {
rightComponent?.let { subContainer.remove(it) }
rightComponent = child
subContainer.add(child, 3)
}
Side.DOWN -> {
downComponent?.let { mainContainer.remove(it) }
downComponent = child
mainContainer.add(child, 3, alignSelf = FlexAlignItems.CENTER)
}
}
return this
}
override fun add(child: Component): DockPanel {
return this.add(child, Side.CENTER)
}
override fun addAll(children: List<Component>): DockPanel {
children.forEach { this.add(it) }
return this
}
override fun remove(child: Component): DockPanel {
if (child == leftComponent) removeAt(Side.LEFT)
if (child == centerComponent) removeAt(Side.CENTER)
if (child == rightComponent) removeAt(Side.RIGHT)
if (child == upComponent) removeAt(Side.UP)
if (child == downComponent) removeAt(Side.DOWN)
return this
}
/**
* Removes child from given position in the dock.
* @param position position in the dock
* @return current container
*/
@Suppress("ComplexMethod")
open fun removeAt(position: Side): DockPanel {
when (position) {
Side.UP -> {
upComponent?.let { mainContainer.remove(it) }
upComponent = null
}
Side.CENTER -> {
centerComponent?.let { subContainer.remove(it) }
centerComponent = null
}
Side.LEFT -> {
leftComponent?.let { subContainer.remove(it) }
leftComponent = null
}
Side.RIGHT -> {
rightComponent?.let { subContainer.remove(it) }
rightComponent = null
}
Side.DOWN -> {
downComponent?.let { mainContainer.remove(it) }
downComponent = null
}
}
return this
}
override fun removeAll(): DockPanel {
removeAt(Side.LEFT)
removeAt(Side.CENTER)
removeAt(Side.RIGHT)
removeAt(Side.UP)
removeAt(Side.DOWN)
return this
}
companion object {
/**
* DSL builder extension function.
*
* It takes the same parameters as the constructor of the built component.
*/
fun Container.dockPanel(classes: Set<String> = setOf(), init: (DockPanel.() -> Unit)? = null): DockPanel {
val dockPanel = DockPanel(classes, init)
this.add(dockPanel)
return dockPanel
}
}
}
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