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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.html
import com.github.snabbdom.VNode
import org.w3c.dom.events.MouseEvent
import pl.treksoft.kvision.core.Container
import pl.treksoft.kvision.core.ResString
import pl.treksoft.kvision.core.StringBoolPair
import pl.treksoft.kvision.core.StringPair
import pl.treksoft.kvision.core.Widget
/**
* Button styles.
*/
enum class ButtonStyle(val className: String) {
DEFAULT("btn-default"),
PRIMARY("btn-primary"),
SUCCESS("btn-success"),
INFO("btn-info"),
WARNING("btn-warning"),
DANGER("btn-danger"),
LINK("btn-link")
}
/**
* Button sizes.
*/
enum class ButtonSize(internal val className: String) {
LARGE("btn-lg"),
SMALL("btn-sm"),
XSMALL("btn-xs")
}
/**
* Button types.
*/
enum class ButtonType(internal val buttonType: String) {
BUTTON("button"),
SUBMIT("submit"),
RESET("reset")
}
/**
* Button component.
*
* @constructor
* @param text button label
* @param icon button icon
* @param style button style
* @param disabled button state
* @param classes a set of CSS class names
*/
open class Button(
text: String, icon: String? = null, style: ButtonStyle = ButtonStyle.DEFAULT, type: ButtonType = ButtonType.BUTTON,
disabled: Boolean = false, classes: Set<String> = setOf()
) : Widget(classes) {
/**
* Button label.
*/
var text by refreshOnUpdate(text)
/**
* Button icon.
*/
var icon by refreshOnUpdate(icon)
/**
* Button style.
*/
var style by refreshOnUpdate(style)
/**
* Button types.
*/
var type by refreshOnUpdate(type)
/**
* Determines if button is disabled.
*/
var disabled by refreshOnUpdate(disabled)
/**
* Button image.
*/
var image: ResString? by refreshOnUpdate()
/**
* Button size.
*/
var size: ButtonSize? by refreshOnUpdate()
/**
* Determines if the button takes all the space horizontally.
*/
var block by refreshOnUpdate(false)
override fun render(): VNode {
val t = createLabelWithIcon(text, icon, image)
return render("button", t)
}
override fun getSnClass(): List<StringBoolPair> {
val cl = super.getSnClass().toMutableList()
cl.add("btn" to true)
cl.add(style.className to true)
size?.let {
cl.add(it.className to true)
}
if (block) {
cl.add("btn-block" to true)
}
if (disabled) {
cl.add("disabled" to true)
}
return cl
}
override fun getSnAttrs(): List<StringPair> {
return super.getSnAttrs() + ("type" to type.buttonType)
}
/**
* A convenient helper for easy setting onClick event handler.
*/
open fun onClick(handler: Button.(MouseEvent) -> Unit): Button {
this.setEventListener<Button> {
click = { e ->
self.handler(e)
}
}
return this
}
companion object {
/**
* DSL builder extension function.
*
* It takes the same parameters as the constructor of the built component.
*/
fun Container.button(
text: String,
icon: String? = null,
style: ButtonStyle = ButtonStyle.DEFAULT,
type: ButtonType = ButtonType.BUTTON,
disabled: Boolean = false,
classes: Set<String> = setOf(),
init: (Button.() -> Unit)? = null
): Button {
val button = Button(text, icon, style, type, disabled, classes).apply { init?.invoke(this) }
this.add(button)
return button
}
}
}
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