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path: root/src/main/kotlin/pl/treksoft/kvision/toolbar/ButtonGroup.kt
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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.toolbar

import pl.treksoft.kvision.core.Container
import pl.treksoft.kvision.core.StringBoolPair
import pl.treksoft.kvision.panel.SimplePanel

/**
 * Button group sizes.
 */
enum class ButtonGroupSize(internal val className: String) {
    LARGE("btn-group-lg"),
    SMALL("btn-group-sm"),
    XSMALL("btn-group-xs")
}

/**
 * Button group styles.
 */
enum class ButtonGroupStyle(internal val className: String) {
    VERTICAL("btn-group-vertical"),
    JUSTIFIED("btn-group-justified")
}

/**
 * The Bootstrap button group.
 *
 * @constructor
 * @param size button group size
 * @param style button group style
 * @param classes a set of CSS class names
 * @param init an initializer extension function
 */
open class ButtonGroup(
    size: ButtonGroupSize? = null, style: ButtonGroupStyle? = null,
    classes: Set<String> = setOf(), init: (ButtonGroup.() -> Unit)? = null
) : SimplePanel(classes) {

    /**
     * Button group size.
     */
    var size by refreshOnUpdate(size)
    /**
     * Button group style.
     */
    var style by refreshOnUpdate(style)

    init {
        role = "group"
        @Suppress("LeakingThis")
        init?.invoke(this)
    }

    override fun getSnClass(): List<StringBoolPair> {
        val cl = super.getSnClass().toMutableList()
        if (style != ButtonGroupStyle.VERTICAL) {
            cl.add("btn-group" to true)
        }
        style?.let {
            cl.add(it.className to true)
        }
        size?.let {
            cl.add(it.className to true)
        }
        return cl
    }

    companion object {
        /**
         * DSL builder extension function.
         *
         * It takes the same parameters as the constructor of the built component.
         */
        fun Container.buttonGroup(
            size: ButtonGroupSize? = null, style: ButtonGroupStyle? = null,
            classes: Set<String> = setOf(), init: (ButtonGroup.() -> Unit)? = null
        ): ButtonGroup {
            val group = ButtonGroup(size, style, classes).apply { init?.invoke(this) }
            this.add(group)
            return group
        }
    }
}