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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
import pl.treksoft.kvision.core.WidgetWrapper
import pl.treksoft.kvision.html.Align
import pl.treksoft.kvision.html.TAG
import pl.treksoft.kvision.html.Tag
/**
* Bootstrap grid sizes.
*/
enum class GridSize(internal val size: String) {
XS("xs"),
SM("sm"),
MD("md"),
LG("lg")
}
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
* @param init an initializer extension function
*/
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(), init: (ResponsiveGridPanel.() -> Unit)? = null
) : SimplePanel(classes) {
/**
* Text align of grid cells.
*/
var align by refreshOnUpdate(align, { refreshRowContainers() })
internal val map = mutableMapOf<Int, MutableMap<Int, WidgetParam>>()
private var auto: Boolean = true
init {
@Suppress("LeakingThis")
init?.invoke(this)
}
/**
* 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 = maxOf(row, 0)
val cCol = maxOf(col, 0)
if (row > rows - 1) rows = cRow + 1
if (col > cols - 1) cols = cCol + 1
map.getOrPut(cRow, { mutableMapOf() })[cCol] = WidgetParam(child, size, offset)
if (size > 0 || offset > 0) auto = false
refreshRowContainers()
return this
}
override fun add(child: Component): ResponsiveGridPanel {
return this.add(child, this.cols, 0)
}
override fun addAll(children: List<Component>): ResponsiveGridPanel {
children.forEach { this.add(it) }
return this
}
@Suppress("NestedBlockDepth")
override fun remove(child: Component): ResponsiveGridPanel {
map.values.forEach { row ->
row.filterValues { it.widget == child }
.forEach { (i, _) -> row.remove(i) }
}
refreshRowContainers()
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()
return this
}
@Suppress("ComplexMethod", "NestedBlockDepth")
private fun refreshRowContainers() {
singleRender {
clearRowContainers()
val num = MAX_COLUMNS / cols
for (i in 0 until rows) {
val rowContainer = SimplePanel(setOf("row"))
val row = map[i]
if (row != null) {
(0 until cols).map { row[it] }.forEach { wp ->
if (auto) {
val widget = wp?.widget?.let {
WidgetWrapper(it, setOf("col-" + gridSize.size + "-" + num))
} ?: Tag(TAG.DIV, classes = setOf("col-" + gridSize.size + "-" + num))
align?.let {
widget.addCssClass(it.className)
}
rowContainer.add(widget)
} else {
if (wp != null) {
val s = if (wp.size > 0) wp.size else num
val widget = WidgetWrapper(wp.widget, setOf("col-" + gridSize.size + "-" + s))
if (wp.offset > 0) {
widget.addCssClass("col-" + gridSize.size + "-offset-" + wp.offset)
}
align?.let {
widget.addCssClass(it.className)
}
rowContainer.add(widget)
}
}
}
}
addInternal(rowContainer)
}
}
}
private fun clearRowContainers() {
children.forEach { it.dispose() }
removeAll()
}
companion object {
/**
* DSL builder extension function.
*
* It takes the same parameters as the constructor of the built component.
*/
fun Container.responsiveGridPanel(
gridSize: GridSize = GridSize.MD,
rows: Int = 0, cols: Int = 0, align: Align? = null,
classes: Set<String> = setOf(), init: (ResponsiveGridPanel.() -> Unit)? = null
): ResponsiveGridPanel {
val responsiveGridPanel = ResponsiveGridPanel(gridSize, rows, cols, align, classes, init)
this.add(responsiveGridPanel)
return responsiveGridPanel
}
}
}
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