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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.
*/
@file:Suppress("TooManyFunctions")
package pl.treksoft.kvision.utils
import com.lightningkite.kotlin.observable.list.ObservableList
import kotlinx.coroutines.suspendCancellableCoroutine
import org.w3c.files.File
import org.w3c.files.FileReader
import pl.treksoft.kvision.core.CssSize
import pl.treksoft.kvision.core.UNIT
import kotlin.browser.window
import kotlin.coroutines.resume
import kotlin.coroutines.resumeWithException
/**
* Extension property to convert Int to CSS px units.
*/
val Int.px: CssSize
get() {
return Pair(this, UNIT.px)
}
/**
* Extension property to convert Int to CSS em units.
*/
val Int.em: CssSize
get() {
return Pair(this, UNIT.em)
}
/**
* Extension property to convert Int to CSS pt units.
*/
val Int.pt: CssSize
get() {
return Pair(this, UNIT.pt)
}
/**
* Extension property to convert Int to CSS percent units.
*/
val Int.perc: CssSize
get() {
return Pair(this, UNIT.perc)
}
/**
* Extension property to convert Int to CSS rem units.
*/
val Int.rem: CssSize
get() {
return Pair(this, UNIT.rem)
}
/**
* Extension property to convert Int to CSS ch units.
*/
val Int.ch: CssSize
get() {
return Pair(this, UNIT.ch)
}
/**
* Extension property to convert Int to CSS cm units.
*/
val Int.cm: CssSize
get() {
return Pair(this, UNIT.cm)
}
/**
* Extension property to convert Int to CSS mm units.
*/
val Int.mm: CssSize
get() {
return Pair(this, UNIT.mm)
}
/**
* Extension property to convert Int to CSS in units.
*/
@Suppress("TopLevelPropertyNaming")
val Int.`in`: CssSize
get() {
return Pair(this, UNIT.`in`)
}
/**
* Extension property to convert Int to CSS pc units.
*/
val Int.pc: CssSize
get() {
return Pair(this, UNIT.pc)
}
/**
* Extension property to convert Int to CSS vh units.
*/
val Int.vh: CssSize
get() {
return Pair(this, UNIT.vh)
}
/**
* Extension property to convert Int to CSS vw units.
*/
val Int.vw: CssSize
get() {
return Pair(this, UNIT.vw)
}
/**
* Extension property to convert Int to CSS vmin units.
*/
val Int.vmin: CssSize
get() {
return Pair(this, UNIT.vmin)
}
/**
* Extension property to convert Int to CSS vmax units.
*/
val Int.vmax: CssSize
get() {
return Pair(this, UNIT.vmax)
}
/**
* Helper property to describe CSS auto value.
*/
val auto: CssSize = Pair(0, UNIT.auto)
/**
* Helper property to describe CSS normal value.
*/
val normal: CssSize = Pair(0, UNIT.normal)
/**
* Extension function to convert CssSize to String.
*/
fun CssSize.asString(): String {
return when (this.second) {
UNIT.auto -> "auto"
UNIT.normal -> "normal"
else -> this.first.toString() + this.second.unit
}
}
private val hex = arrayOf("0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "a", "b", "c", "d", "e", "f")
/**
* Extension function to convert Int to hex format.
*/
@Suppress("MagicNumber")
fun Int.toHexString(): String {
var result = ""
var num = this
for (i in 0 until 6) {
result = hex[num and 0xF] + result
num = num shr 4
}
return result
}
/**
* Utility function to detect Internet Explorer 11.
* @return true if the current browser is IE11
*/
fun isIE11(): Boolean = window.navigator.userAgent.matches("Trident\\/7\\.")
/**
* Suspending extension function to get file content.
* @return file content
*/
suspend fun File.getContent(): String = suspendCancellableCoroutine { cont ->
val reader = FileReader()
reader.onload = {
@Suppress("UnsafeCastFromDynamic")
cont.resume(reader.result)
}
reader.onerror = { e ->
cont.resumeWithException(Exception(e.type))
}
reader.readAsDataURL(this@getContent)
}
/**
* Utility extension function to synchronise elements of the ObservableList.
*/
fun <T> ObservableList<T>.syncWithList(list: List<T>) {
if (list.isEmpty()) {
this.clear()
} else {
for (pos in (this.size - 1) downTo list.size) this.removeAt(pos)
list.forEachIndexed { index, element ->
if (index < this.size) {
if (this[index] != element) this[index] = element
} else {
this.add(element)
}
}
}
}
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