Upgrade to Bootstrap 4.

Upgrade to Font Awesome 5.
Restructure modules.

6 files changed, 1146 insertions, 0 deletions

diff --git a/kvision-modules/kvision-bootstrap-select/src/main/kotlin/pl/treksoft/kvision/KVManagerSelect.kt b/kvision-modules/kvision-bootstrap-select/src/main/kotlin/pl/treksoft/kvision/KVManagerSelect.kt
new file mode 100644
index 00000000..3617c417
--- /dev/null
+++ b/kvision-modules/kvision-bootstrap-select/src/main/kotlin/pl/treksoft/kvision/KVManagerSelect.kt
@@ -0,0 +1,53 @@
+/*
+ * 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
+
+internal val kVManagerSelectInit = KVManagerSelect.init()
+
+/**
+ * Internal singleton object which initializes and configures KVision select module.
+ */
+internal object KVManagerSelect {
+    internal const val AJAX_REQUEST_DELAY = 300
+    internal const val KVNULL = "#kvnull"
+
+    init {
+        require("bootstrap-select/dist/css/bootstrap-select.min.css")
+        require("bootstrap-select/dist/js/bootstrap-select.min.js")
+        require("./js/locales/bootstrap-select/bootstrap-select-i18n.min.js")
+        require("ajax-bootstrap-select/dist/css/ajax-bootstrap-select.min.css")
+        require("ajax-bootstrap-select/dist/js/ajax-bootstrap-select.min.js")
+        require("./js/locales/ajax-bootstrap-select/ajax-bootstrap-select.de-DE.min.js")
+        require("./js/locales/ajax-bootstrap-select/ajax-bootstrap-select.es-ES.min.js")
+        require("./js/locales/ajax-bootstrap-select/ajax-bootstrap-select.fr-FR.min.js")
+        require("./js/locales/ajax-bootstrap-select/ajax-bootstrap-select.it-IT.min.js")
+        require("./js/locales/ajax-bootstrap-select/ajax-bootstrap-select.ja-JP.min.js")
+        require("./js/locales/ajax-bootstrap-select/ajax-bootstrap-select.ko-KR.min.js")
+        require("./js/locales/ajax-bootstrap-select/ajax-bootstrap-select.nl-NL.min.js")
+        require("./js/locales/ajax-bootstrap-select/ajax-bootstrap-select.pl-PL.min.js")
+        require("./js/locales/ajax-bootstrap-select/ajax-bootstrap-select.pt-BR.min.js")
+        require("./js/locales/ajax-bootstrap-select/ajax-bootstrap-select.ru-RU.min.js")
+        require("./js/locales/ajax-bootstrap-select/ajax-bootstrap-select.tr-TR.min.js")
+    }
+
+    internal fun init() {}
+}
diff --git a/kvision-modules/kvision-bootstrap-select/src/main/kotlin/pl/treksoft/kvision/form/select/AjaxOptions.kt b/kvision-modules/kvision-bootstrap-select/src/main/kotlin/pl/treksoft/kvision/form/select/AjaxOptions.kt
new file mode 100644
index 00000000..c088f68d
--- /dev/null
+++ b/kvision-modules/kvision-bootstrap-select/src/main/kotlin/pl/treksoft/kvision/form/select/AjaxOptions.kt
@@ -0,0 +1,140 @@
+/*
+ * 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.form.select
+
+import pl.treksoft.jquery.JQueryXHR
+import pl.treksoft.kvision.KVManagerSelect.AJAX_REQUEST_DELAY
+import pl.treksoft.kvision.KVManagerSelect.KVNULL
+import pl.treksoft.kvision.i18n.I18n
+import pl.treksoft.kvision.utils.obj
+
+/**
+ * HTTP protocol type for the AJAX call.
+ */
+enum class HttpType(internal val type: String) {
+    GET("GET"),
+    POST("POST")
+}
+
+/**
+ * Data type for the AJAX call.
+ */
+enum class DataType(internal val type: String) {
+    JSON("json"),
+    JSONP("jsonp"),
+    XML("xml"),
+    TEXT("text"),
+    SCRIPT("script")
+}
+
+/**
+ * Data class for AJAX options.
+ *
+ * @constructor
+ * @param url the url address
+ * @param preprocessData
+ * [AjaxBootstrapSelect preprocessOption](https://github.com/truckingsim/Ajax-Bootstrap-Select#optionspreprocessdata)
+ * option
+ * @param beforeSend
+ * [JQuery ajax.beforeSend](http://api.jquery.com/jquery.ajax/#jQuery-ajax-settings) option
+ * @param data
+ * [JQuery ajax.data](http://api.jquery.com/jquery.ajax/#jQuery-ajax-settings) option
+ * @param httpType
+ * [JQuery ajax.type](http://api.jquery.com/jquery.ajax/#jQuery-ajax-settings) option
+ * @param minLength
+ * [AjaxBootstrapSelect minLength](https://github.com/truckingsim/Ajax-Bootstrap-Select#optionsminlength) option
+ * @param cache
+ * [AjaxBootstrapSelect cache](https://github.com/truckingsim/Ajax-Bootstrap-Select#optionscache) option
+ * @param clearOnEmpty
+ * [AjaxBootstrapSelect clearOnEmpty](https://github.com/truckingsim/Ajax-Bootstrap-Select#optionsclearonempty) option
+ * @param clearOnError
+ * [AjaxBootstrapSelect clearOnError](https://github.com/truckingsim/Ajax-Bootstrap-Select#optionsclearonerror) option
+ * @param emptyRequest
+ * [AjaxBootstrapSelect emptyRequest](https://github.com/truckingsim/Ajax-Bootstrap-Select#optionsemptyrequest) option
+ * @param requestDelay
+ * [AjaxBootstrapSelect requestDelay](https://github.com/truckingsim/Ajax-Bootstrap-Select#optionsrequestdelay) option
+ * @param restoreOnError
+ * [AjaxBootstrapSelect restoreOnError](https://github.com/truckingsim/Ajax-Bootstrap-Select#optionsrestoreonerror)
+ * option
+ */
+data class AjaxOptions(
+    val url: String? = null,
+    val preprocessData: ((dynamic) -> dynamic)? = null,
+    val beforeSend: ((JQueryXHR, dynamic) -> dynamic)? = null,
+    val data: dynamic = null,
+    val httpType: HttpType = HttpType.GET,
+    val dataType: DataType = DataType.JSON,
+    val minLength: Int = 0,
+    val cache: Boolean = true,
+    val clearOnEmpty: Boolean = true,
+    val clearOnError: Boolean = true,
+    val emptyRequest: Boolean = false,
+    val requestDelay: Int = AJAX_REQUEST_DELAY,
+    val restoreOnError: Boolean = false,
+    val preserveSelected: Boolean = false,
+    val processData: Boolean = false
+)
+
+/**
+ * Convert AjaxOptions to JavaScript JSON object.
+ * @param emptyOption add an empty position as the first select option
+ * @return JSON object
+ */
+fun AjaxOptions.toJs(emptyOption: Boolean): dynamic {
+    val procData = { data: dynamic ->
+        val processedData = this.preprocessData?.invoke(data) ?: data
+        if (emptyOption) {
+            val ret = mutableListOf(obj {
+                this.value = KVNULL
+                this.text = ""
+            })
+            @Suppress("UnsafeCastFromDynamic")
+            ret.addAll((processedData as Array<dynamic>).asList())
+            ret.toTypedArray()
+        } else {
+            processedData
+        }
+    }
+    val language = I18n.language
+    return obj {
+        this.ajax = obj {
+            this.url = url ?: "/"
+            this.method = httpType.type
+            this.dataType = dataType.type
+            this.data = data
+            this.beforeSend = beforeSend
+            this.contentType = "application/json"
+        }
+        this.preprocessData = procData
+        this.minLength = minLength
+        this.cache = cache
+        this.clearOnEmpty = clearOnEmpty
+        this.clearOnError = clearOnError
+        this.emptyRequest = emptyRequest
+        this.preserveSelected = preserveSelected
+        this.requestDelay = requestDelay
+        this.restoreOnError = restoreOnError
+        this.langCode = language
+        this.processData = processData
+        this.preserveSelectedOrder = true
+    }
+}
diff --git a/kvision-modules/kvision-bootstrap-select/src/main/kotlin/pl/treksoft/kvision/form/select/Select.kt b/kvision-modules/kvision-bootstrap-select/src/main/kotlin/pl/treksoft/kvision/form/select/Select.kt
new file mode 100644
index 00000000..4b2505d2
--- /dev/null
+++ b/kvision-modules/kvision-bootstrap-select/src/main/kotlin/pl/treksoft/kvision/form/select/Select.kt
@@ -0,0 +1,285 @@
+/*
+ * 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.form.select
+
+import pl.treksoft.kvision.core.Component
+import pl.treksoft.kvision.core.Container
+import pl.treksoft.kvision.core.StringBoolPair
+import pl.treksoft.kvision.core.StringPair
+import pl.treksoft.kvision.core.Widget
+import pl.treksoft.kvision.form.FieldLabel
+import pl.treksoft.kvision.form.InvalidFeedback
+import pl.treksoft.kvision.form.StringFormControl
+import pl.treksoft.kvision.panel.SimplePanel
+import pl.treksoft.kvision.utils.SnOn
+
+/**
+ * The form field component for Select control.
+ *
+ * The select control can be populated directly from *options* parameter or manually by adding
+ * [SelectOption] or [SelectOptGroup] components to the container.
+ *
+ * @constructor
+ * @param options an optional list of options (value to label pairs) for the select control
+ * @param value selected value
+ * @param name the name attribute of the generated HTML input element
+ * @param multiple allows multiple value selection (multiple values are comma delimited)
+ * @param ajaxOptions additional options for remote (AJAX) data source
+ * @param label label text bound to the input element
+ * @param rich determines if [label] can contain HTML code
+ */
+@Suppress("TooManyFunctions")
+open class Select(
+    options: List<StringPair>? = null, value: String? = null, name: String? = null,
+    multiple: Boolean = false, ajaxOptions: AjaxOptions? = null, label: String? = null,
+    rich: Boolean = false
+) : SimplePanel(setOf("form-group")), StringFormControl {
+
+    /**
+     * A list of options (value to label pairs) for the select control.
+     */
+    var options
+        get() = input.options
+        set(value) {
+            input.options = value
+        }
+    /**
+     * A value of the selected option.
+     */
+    override var value
+        get() = input.value
+        set(value) {
+            input.value = value
+        }
+    /**
+     * Determines if multiple value selection is allowed.
+     */
+    var multiple
+        get() = input.multiple
+        set(value) {
+            input.multiple = value
+        }
+    /**
+     * Additional options for remote (AJAX) data source.
+     */
+    var ajaxOptions
+        get() = input.ajaxOptions
+        set(value) {
+            input.ajaxOptions = value
+        }
+    /**
+     * Maximal number of selected options.
+     */
+    var maxOptions
+        get() = input.maxOptions
+        set(value) {
+            input.maxOptions = value
+        }
+    /**
+     * Determines if live search is available.
+     */
+    var liveSearch
+        get() = input.liveSearch
+        set(value) {
+            input.liveSearch = value
+        }
+    /**
+     * The placeholder for the select control.
+     */
+    var placeholder
+        get() = input.placeholder
+        set(value) {
+            input.placeholder = value
+        }
+    /**
+     * The style of the select control.
+     */
+    var style
+        get() = input.style
+        set(value) {
+            input.style = value
+        }
+    /**
+     * The width of the select control.
+     */
+    var selectWidth
+        get() = input.selectWidth
+        set(value) {
+            input.selectWidth = value
+        }
+    /**
+     * The width type of the select control.
+     */
+    var selectWidthType
+        get() = input.selectWidthType
+        set(value) {
+            input.selectWidthType = value
+        }
+    /**
+     * Determines if an empty option is automatically generated.
+     */
+    var emptyOption
+        get() = input.emptyOption
+        set(value) {
+            input.emptyOption = value
+        }
+    /**
+     * Determines if the select is automatically focused.
+     */
+    var autofocus
+        get() = input.autofocus
+        set(value) {
+            input.autofocus = value
+        }
+    /**
+     * The label text bound to the select element.
+     */
+    var label
+        get() = flabel.content
+        set(value) {
+            flabel.content = value
+        }
+    /**
+     * Determines if [label] can contain HTML code.
+     */
+    var rich
+        get() = flabel.rich
+        set(value) {
+            flabel.rich = value
+        }
+
+    private val idc = "kv_form_select_$counter"
+    final override val input: SelectInput = SelectInput(
+        options, value, multiple, ajaxOptions,
+        setOf("form-control")
+    ).apply {
+        this.id = idc
+        this.name = name
+    }
+    final override val flabel: FieldLabel = FieldLabel(idc, label, rich)
+    final override val invalidFeedback: InvalidFeedback = InvalidFeedback().apply { visible = false }
+
+    init {
+        @Suppress("LeakingThis")
+        input.eventTarget = this
+        this.addInternal(flabel)
+        this.addInternal(input)
+        this.addInternal(invalidFeedback)
+        counter++
+    }
+
+    override fun getSnClass(): List<StringBoolPair> {
+        val cl = super.getSnClass().toMutableList()
+        if (validatorError != null) {
+            cl.add("text-danger" to true)
+        }
+        return cl
+    }
+
+    @Suppress("UNCHECKED_CAST")
+    override fun <T : Widget> setEventListener(block: SnOn<T>.() -> Unit): Widget {
+        input.setEventListener(block)
+        return this
+    }
+
+    override fun setEventListener(block: SnOn<Widget>.() -> Unit): Widget {
+        input.setEventListener(block)
+        return this
+    }
+
+    override fun removeEventListeners(): Widget {
+        input.removeEventListeners()
+        return this
+    }
+
+    override fun add(child: Component): SimplePanel {
+        input.add(child)
+        return this
+    }
+
+    override fun addAll(children: List<Component>): SimplePanel {
+        input.addAll(children)
+        return this
+    }
+
+    override fun remove(child: Component): SimplePanel {
+        input.remove(child)
+        return this
+    }
+
+    override fun removeAll(): SimplePanel {
+        input.removeAll()
+        return this
+    }
+
+    override fun getChildren(): List<Component> {
+        return input.getChildren()
+    }
+
+    /**
+     * Opens dropdown with options.
+     */
+    open fun showOptions() {
+        input.showOptions()
+    }
+
+    /**
+     * Hides dropdown with options.
+     */
+    open fun hideOptions() {
+        input.hideOptions()
+    }
+
+    /**
+     * Toggles visibility of dropdown with options.
+     */
+    open fun toggleOptions() {
+        input.toggleOptions()
+    }
+
+    override fun focus() {
+        input.focus()
+    }
+
+    override fun blur() {
+        input.blur()
+    }
+
+    companion object {
+        internal var counter = 0
+
+        /**
+         * DSL builder extension function.
+         *
+         * It takes the same parameters as the constructor of the built component.
+         */
+        fun Container.select(
+            options: List<StringPair>? = null, value: String? = null, name: String? = null,
+            multiple: Boolean = false, ajaxOptions: AjaxOptions? = null, label: String? = null,
+            rich: Boolean = false, init: (Select.() -> Unit)? = null
+        ): Select {
+            val select = Select(options, value, name, multiple, ajaxOptions, label, rich).apply { init?.invoke(this) }
+            this.add(select)
+            return select
+        }
+    }
+}
diff --git a/kvision-modules/kvision-bootstrap-select/src/main/kotlin/pl/treksoft/kvision/form/select/SelectInput.kt b/kvision-modules/kvision-bootstrap-select/src/main/kotlin/pl/treksoft/kvision/form/select/SelectInput.kt
new file mode 100644
index 00000000..84eccaf7
--- /dev/null
+++ b/kvision-modules/kvision-bootstrap-select/src/main/kotlin/pl/treksoft/kvision/form/select/SelectInput.kt
@@ -0,0 +1,375 @@
+/*
+ * 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.form.select
+
+import com.github.snabbdom.VNode
+import pl.treksoft.kvision.KVManagerSelect.KVNULL
+import pl.treksoft.kvision.core.Component
+import pl.treksoft.kvision.core.Container
+import pl.treksoft.kvision.core.CssSize
+import pl.treksoft.kvision.core.StringBoolPair
+import pl.treksoft.kvision.core.StringPair
+import pl.treksoft.kvision.form.FormInput
+import pl.treksoft.kvision.form.InputSize
+import pl.treksoft.kvision.form.ValidationStatus
+import pl.treksoft.kvision.html.ButtonStyle
+import pl.treksoft.kvision.panel.SimplePanel
+import pl.treksoft.kvision.utils.asString
+import pl.treksoft.kvision.utils.obj
+
+/**
+ * Select width types. See [Bootstrap Select width](http://silviomoreto.github.io/bootstrap-select/examples/#width).
+ */
+enum class SelectWidthType(internal val value: String) {
+    AUTO("auto"),
+    FIT("fit")
+}
+
+/**
+ * The basic component for Select control.
+ *
+ * The select control can be populated directly from *options* parameter or manually by adding
+ * [SelectOption] or [SelectOptGroup] components to the container.
+ *
+ * @constructor
+ * @param options an optional list of options (value to label pairs) for the select control
+ * @param value selected value
+ * @param multiple allows multiple value selection (multiple values are comma delimited)
+ * @param ajaxOptions additional options for remote (AJAX) data source
+ * @param classes a set of CSS class names
+ */
+@Suppress("TooManyFunctions")
+open class SelectInput(
+    options: List<StringPair>? = null, value: String? = null,
+    multiple: Boolean = false, ajaxOptions: AjaxOptions? = null,
+    classes: Set<String> = setOf()
+) : SimplePanel(classes), FormInput {
+
+    /**
+     * A list of options (value to label pairs) for the select control.
+     */
+    var options by refreshOnUpdate(options) { setChildrenFromOptions() }
+    /**
+     * A value of the selected option.
+     */
+    var value by refreshOnUpdate(value) { refreshState() }
+    /**
+     * The name attribute of the generated HTML select element.
+     */
+    override var name: String? by refreshOnUpdate()
+    /**
+     * Determines if multiple value selection is allowed.
+     */
+    var multiple by refreshOnUpdate(multiple)
+    /**
+     * Additional options for remote (AJAX) data source.
+     */
+    var ajaxOptions by refreshOnUpdate(ajaxOptions) {
+        if (it != null) {
+            liveSearch = true
+        }
+        refresh()
+    }
+    /**
+     * Maximal number of selected options.
+     */
+    var maxOptions: Int? by refreshOnUpdate()
+    /**
+     * Determines if live search is available.
+     */
+    var liveSearch by refreshOnUpdate(false)
+    /**
+     * The placeholder for the select control.
+     */
+    var placeholder: String? by refreshOnUpdate()
+    /**
+     * The style of the select control.
+     */
+    var style: ButtonStyle? by refreshOnUpdate()
+    /**
+     * The width of the select control.
+     */
+    var selectWidth: CssSize? by refreshOnUpdate()
+    /**
+     * The width type of the select control.
+     */
+    var selectWidthType: SelectWidthType? by refreshOnUpdate()
+    /**
+     * Determines if an empty option is automatically generated.
+     */
+    var emptyOption by refreshOnUpdate(false) { setChildrenFromOptions() }
+    /**
+     * Determines if the field is disabled.
+     */
+    override var disabled by refreshOnUpdate(false)
+    /**
+     * Determines if the select is automatically focused.
+     */
+    var autofocus: Boolean? by refreshOnUpdate()
+    /**
+     * The size of the input.
+     */
+    override var size: InputSize? by refreshOnUpdate()
+    /**
+     * The validation status of the input.
+     */
+    override var validationStatus: ValidationStatus? by refreshOnUpdate()
+
+    init {
+        setChildrenFromOptions()
+        this.setInternalEventListener<SelectInput> {
+            change = {
+                val v = getElementJQuery()?.`val`()
+                self.value = v?.let {
+                    calculateValue(it)
+                }
+            }
+        }
+    }
+
+    private fun calculateValue(v: Any): String? {
+        return if (this.multiple) {
+            @Suppress("UNCHECKED_CAST")
+            val arr = v as? Array<String>
+            if (arr != null && arr.isNotEmpty()) {
+                arr.filter { it.isNotEmpty() }.joinToString(",")
+            } else {
+                null
+            }
+        } else {
+            val vs = v as String
+            if (KVNULL == vs || vs.isEmpty()) {
+                null
+            } else {
+                vs
+            }
+        }
+    }
+
+    override fun render(): VNode {
+        return render("select", childrenVNodes())
+    }
+
+    override fun add(child: Component): SimplePanel {
+        super.add(child)
+        refreshSelectInput()
+        return this
+    }
+
+    override fun addAll(children: List<Component>): SimplePanel {
+        super.addAll(children)
+        refreshSelectInput()
+        return this
+    }
+
+    override fun remove(child: Component): SimplePanel {
+        super.remove(child)
+        refreshSelectInput()
+        return this
+    }
+
+    override fun removeAll(): SimplePanel {
+        super.removeAll()
+        refreshSelectInput()
+        return this
+    }
+
+    private fun setChildrenFromOptions() {
+        if (ajaxOptions == null) {
+            super.removeAll()
+            if (emptyOption) {
+                super.add(SelectOption(KVNULL, ""))
+            }
+            options?.let {
+                val c = it.map {
+                    SelectOption(it.first, it.second)
+                }
+                super.addAll(c)
+            }
+        }
+        this.refreshSelectInput()
+    }
+
+    /**
+     * Opens dropdown with options.
+     */
+    open fun showOptions() {
+        getElementJQueryD()?.selectpicker("show")
+    }
+
+    /**
+     * Hides dropdown with options.
+     */
+    open fun hideOptions() {
+        getElementJQueryD()?.selectpicker("hide")
+    }
+
+    /**
+     * Toggles visibility of dropdown with options.
+     */
+    open fun toggleOptions() {
+        getElementJQueryD()?.selectpicker("toggle")
+    }
+
+    override fun getSnClass(): List<StringBoolPair> {
+        val cl = super.getSnClass().toMutableList()
+        cl.add("selectpicker" to true)
+        validationStatus?.let {
+            cl.add(it.className to true)
+        }
+        size?.let {
+            cl.add(it.className to true)
+        }
+        return cl
+    }
+
+    protected fun refreshSelectInput() {
+        getElementJQueryD()?.selectpicker("refresh")
+        refreshState()
+        getElementJQueryD()?.trigger("change")?.data("AjaxBootstrapSelect")?.list?.cache = {}
+    }
+
+    @Suppress("ComplexMethod")
+    override fun getSnAttrs(): List<StringPair> {
+        val sn = super.getSnAttrs().toMutableList()
+        name?.let {
+            sn.add("name" to it)
+        }
+        if (multiple) {
+            sn.add("multiple" to "multiple")
+        }
+        maxOptions?.let {
+            sn.add("data-max-options" to "" + it)
+        }
+        if (liveSearch) {
+            sn.add("data-live-search" to "true")
+        }
+        placeholder?.let {
+            sn.add("title" to translate(it))
+        }
+        autofocus?.let {
+            if (it) {
+                sn.add("autofocus" to "autofocus")
+            }
+        }
+        if (disabled) {
+            sn.add("disabled" to "disabled")
+        }
+        val btnStyle = style?.className ?: "btn-default"
+        when (size) {
+            InputSize.LARGE -> {
+                sn.add("data-style" to "$btnStyle btn-lg")
+            }
+            InputSize.SMALL -> {
+                sn.add("data-style" to "$btnStyle btn-sm")
+            }
+            else -> {
+                sn.add("data-style" to btnStyle)
+            }
+        }
+        selectWidthType?.let {
+            sn.add("data-width" to it.value)
+        } ?: selectWidth?.let {
+            sn.add("data-width" to it.asString())
+        }
+        return sn
+    }
+
+    @Suppress("UnsafeCastFromDynamic")
+    override fun afterInsert(node: VNode) {
+        ajaxOptions?.let {
+            getElementJQueryD()?.selectpicker("render").ajaxSelectPicker(it.toJs(emptyOption))
+        } ?: getElementJQueryD()?.selectpicker("render")
+
+        this.getElementJQuery()?.on("show.bs.select") { e, _ ->
+            this.dispatchEvent("showBsSelect", obj { detail = e })
+        }
+        this.getElementJQuery()?.on("shown.bs.select") { e, _ ->
+            this.dispatchEvent("shownBsSelect", obj { detail = e })
+        }
+        this.getElementJQuery()?.on("hide.bs.select") { e, _ ->
+            this.dispatchEvent("hideBsSelect", obj { detail = e })
+        }
+        this.getElementJQuery()?.on("hidden.bs.select") { e, _ ->
+            this.dispatchEvent("hiddenBsSelect", obj { detail = e })
+        }
+        this.getElementJQuery()?.on("loaded.bs.select") { e, _ ->
+            this.dispatchEvent("loadedBsSelect", obj { detail = e })
+        }
+        this.getElementJQuery()?.on("rendered.bs.select") { e, _ ->
+            this.dispatchEvent("renderedBsSelect", obj { detail = e })
+        }
+        this.getElementJQuery()?.on("refreshed.bs.select") { e, _ ->
+            this.dispatchEvent("refreshedBsSelect", obj { detail = e })
+        }
+        this.getElementJQueryD()?.on("changed.bs.select") { e, cIndex: Int ->
+            e["clickedIndex"] = cIndex
+            this.dispatchEvent("changedBsSelect", obj { detail = e })
+        }
+        refreshState()
+    }
+
+    @Suppress("UnsafeCastFromDynamic")
+    private fun refreshState() {
+        if (ajaxOptions == null) {
+            value?.let {
+                if (multiple) {
+                    getElementJQueryD()?.selectpicker("val", it.split(",").toTypedArray())
+                } else {
+                    getElementJQueryD()?.selectpicker("val", it)
+                }
+            } ?: getElementJQueryD()?.selectpicker("val", null)
+        }
+    }
+
+    /**
+     * Makes the input element focused.
+     */
+    override fun focus() {
+        getElementJQuery()?.focus()
+    }
+
+    /**
+     * Makes the input element blur.
+     */
+    override fun blur() {
+        getElementJQuery()?.blur()
+    }
+
+    companion object {
+
+        /**
+         * DSL builder extension function.
+         *
+         * It takes the same parameters as the constructor of the built component.
+         */
+        fun Container.selectInput(
+            options: List<StringPair>? = null, value: String? = null,
+            multiple: Boolean = false, ajaxOptions: AjaxOptions? = null,
+            classes: Set<String> = setOf(), init: (SelectInput.() -> Unit)? = null
+        ): SelectInput {
+            val selectInput = SelectInput(options, value, multiple, ajaxOptions, classes).apply { init?.invoke(this) }
+            this.add(selectInput)
+            return selectInput
+        }
+    }
+}
diff --git a/kvision-modules/kvision-bootstrap-select/src/main/kotlin/pl/treksoft/kvision/form/select/SelectOptGroup.kt b/kvision-modules/kvision-bootstrap-select/src/main/kotlin/pl/treksoft/kvision/form/select/SelectOptGroup.kt
new file mode 100644
index 00000000..3f07a9bf
--- /dev/null
+++ b/kvision-modules/kvision-bootstrap-select/src/main/kotlin/pl/treksoft/kvision/form/select/SelectOptGroup.kt
@@ -0,0 +1,123 @@
+/*
+ * 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.form.select
+
+import com.github.snabbdom.VNode
+import pl.treksoft.kvision.core.StringPair
+import pl.treksoft.kvision.panel.SimplePanel
+
+/**
+ * The helper container for adding option groups to [Select].
+ *
+ * The option group can be populated directly from *options* parameter or manually by adding
+ * [SelectOption] components to the container.
+ *
+ * @constructor
+ * @param label the label of the group
+ * @param options an optional list of options (label to value pairs) for the group
+ * @param maxOptions maximal number of selected options in the group
+ * @param disabled renders a disabled group
+ * @param classes a set of CSS class names
+ */
+open class SelectOptGroup(
+    label: String, options: List<StringPair>? = null, maxOptions: Int? = null,
+    disabled: Boolean = false, classes: Set<String> = setOf()
+) : SimplePanel(classes) {
+    /**
+     * A label for the group.
+     */
+    var label by refreshOnUpdate(label)
+    /**
+     * A list of options (label to value pairs) for the group.
+     */
+    var options by refreshOnUpdate(options) { setChildrenFromOptions() }
+    /**
+     * Maximal number of selected options in the group.
+     */
+    var maxOptions by refreshOnUpdate(maxOptions)
+    /**
+     * Determines if the group is disabled.
+     */
+    var disabled by refreshOnUpdate(disabled)
+
+    init {
+        setChildrenFromOptions()
+    }
+
+    override fun render(): VNode {
+        return render("optgroup", childrenVNodes())
+    }
+
+    private fun setChildrenFromOptions() {
+        this.removeAll()
+        options?.let {
+            val c = it.map {
+                SelectOption(it.first, it.second)
+            }
+            this.addAll(c)
+        }
+    }
+
+    override fun getSnAttrs(): List<StringPair> {
+        val sn = super.getSnAttrs().toMutableList()
+        sn.add("label" to translate(label))
+        maxOptions?.let {
+            sn.add("data-max-options" to "" + it)
+        }
+        if (disabled) {
+            sn.add("disabled" to "disabled")
+        }
+        return sn
+    }
+
+    companion object {
+        /**
+         * DSL builder extension function.
+         *
+         * It takes the same parameters as the constructor of the built component.
+         */
+        fun Select.selectOptGroup(
+            label: String, options: List<StringPair>? = null, maxOptions: Int? = null,
+            disabled: Boolean = false, classes: Set<String> = setOf(), init: (SelectOptGroup.() -> Unit)? = null
+        ): SelectOptGroup {
+            val selectOptGroup =
+                SelectOptGroup(label, options, maxOptions, disabled, classes).apply { init?.invoke(this) }
+            this.add(selectOptGroup)
+            return selectOptGroup
+        }
+
+        /**
+         * DSL builder extension function.
+         *
+         * It takes the same parameters as the constructor of the built component.
+         */
+        fun SelectInput.selectOptGroup(
+            label: String, options: List<StringPair>? = null, maxOptions: Int? = null,
+            disabled: Boolean = false, classes: Set<String> = setOf(), init: (SelectOptGroup.() -> Unit)? = null
+        ): SelectOptGroup {
+            val selectOptGroup =
+                SelectOptGroup(label, options, maxOptions, disabled, classes).apply { init?.invoke(this) }
+            this.add(selectOptGroup)
+            return selectOptGroup
+        }
+    }
+}
diff --git a/kvision-modules/kvision-bootstrap-select/src/main/kotlin/pl/treksoft/kvision/form/select/SelectOption.kt b/kvision-modules/kvision-bootstrap-select/src/main/kotlin/pl/treksoft/kvision/form/select/SelectOption.kt
new file mode 100644
index 00000000..91c269a8
--- /dev/null
+++ b/kvision-modules/kvision-bootstrap-select/src/main/kotlin/pl/treksoft/kvision/form/select/SelectOption.kt
@@ -0,0 +1,170 @@
+/*
+ * 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.form.select
+
+import com.github.snabbdom.VNode
+import pl.treksoft.kvision.core.StringPair
+import pl.treksoft.kvision.core.Widget
+
+/**
+ * The helper component for adding options to [Select] or [SelectOptGroup].
+ *
+ * @constructor
+ * @param value the value of the option
+ * @param label the label of the option
+ * @param subtext the small subtext after the label of the option
+ * @param icon the icon before the label of the option
+ * @param divider renders this option as a divider
+ * @param disabled renders a disabled option
+ * @param classes a set of CSS class names
+ */
+open class SelectOption(
+    value: String? = null, label: String? = null, subtext: String? = null, icon: String? = null,
+    divider: Boolean = false, disabled: Boolean = false, selected: Boolean = false,
+    classes: Set<String> = setOf()
+) : Widget(classes) {
+
+    /**
+     * The value of the option.
+     */
+    var value by refreshOnUpdate(value)
+    /**
+     * The label of the option.
+     */
+    var label by refreshOnUpdate(label)
+    /**
+     * The subtext after the label of the option.
+     */
+    var subtext by refreshOnUpdate(subtext)
+    /**
+     * The icon before the label of the option.
+     */
+    var icon by refreshOnUpdate(icon)
+    /**
+     * Determines if the option should be rendered as divider.
+     */
+    var divider by refreshOnUpdate(divider)
+    /**
+     * Determines if the option should be disabled.
+     */
+    var disabled by refreshOnUpdate(disabled)
+    /**
+     * Determines if the option is selected.
+     */
+    var selected by refreshOnUpdate(selected)
+
+    override fun render(): VNode {
+        return if (!divider) {
+            render("option", arrayOf(translate(label) ?: value))
+        } else {
+            render("option")
+        }
+    }
+
+    @Suppress("ComplexMethod")
+    override fun getSnAttrs(): List<StringPair> {
+        val sn = super.getSnAttrs().toMutableList()
+        if (!divider) {
+            value?.let {
+                sn.add("value" to it)
+            }
+            subtext?.let {
+                sn.add("data-subtext" to translate(it))
+            }
+            icon?.let {
+                sn.add("data-icon" to it)
+            }
+            if (disabled) {
+                sn.add("disabled" to "disabled")
+            }
+            if (selected) {
+                sn.add("selected" to "selected")
+            }
+        } else {
+            sn.add("data-divider" to "true")
+        }
+        return sn
+    }
+
+    companion object {
+        /**
+         * DSL builder extension function.
+         *
+         * It takes the same parameters as the constructor of the built component.
+         */
+        fun Select.selectOption(
+            value: String? = null, label: String? = null, subtext: String? = null, icon: String? = null,
+            divider: Boolean = false, disabled: Boolean = false, selected: Boolean = false,
+            classes: Set<String> = setOf(), init: (SelectOption.() -> Unit)? = null
+        ): SelectOption {
+            val selectOption =
+                SelectOption(value, label, subtext, icon, divider, disabled, selected, classes).apply {
+                    init?.invoke(
+                        this
+                    )
+                }
+            this.add(selectOption)
+            return selectOption
+        }
+
+        /**
+         * DSL builder extension function.
+         *
+         * It takes the same parameters as the constructor of the built component.
+         */
+        fun SelectInput.selectOption(
+            value: String? = null, label: String? = null, subtext: String? = null, icon: String? = null,
+            divider: Boolean = false, disabled: Boolean = false, selected: Boolean = false,
+            classes: Set<String> = setOf(), init: (SelectOption.() -> Unit)? = null
+        ): SelectOption {
+            val selectOption =
+                SelectOption(value, label, subtext, icon, divider, disabled, selected, classes).apply {
+                    init?.invoke(
+                        this
+                    )
+                }
+            this.add(selectOption)
+            return selectOption
+        }
+
+        /**
+         * DSL builder extension function.
+         *
+         * It takes the same parameters as the constructor of the built component.
+         */
+        fun SelectOptGroup.selectOption(
+            value: String? = null, label: String? = null, subtext: String? = null, icon: String? = null,
+            divider: Boolean = false, disabled: Boolean = false, selected: Boolean = false,
+            classes: Set<String> = setOf(), init: (SelectOption.() -> Unit)? = null
+        ): SelectOption {
+            val selectOption =
+                SelectOption(value, label, subtext, icon, divider, disabled, selected, classes).apply {
+                    init?.invoke(
+                        this
+                    )
+                }
+            this.add(selectOption)
+            return selectOption
+        }
+
+    }
+}