Ajax support for Select, emptyOption support

5 files changed, 93 insertions, 19 deletions

diff --git a/src/main/kotlin/pl/treksoft/kvision/Showcase.kt b/src/main/kotlin/pl/treksoft/kvision/Showcase.kt
index 985f9f98..a3fec251 100644
--- a/src/main/kotlin/pl/treksoft/kvision/Showcase.kt
+++ b/src/main/kotlin/pl/treksoft/kvision/Showcase.kt
@@ -187,6 +187,36 @@ class Showcase : ApplicationBase() {
         }
         root.add(select7)
 
+        val select8 = Select(label = "Wybierz repozytorium").apply {
+            emptyOption = true
+            ajaxOptions = AjaxOptions("https://api.github.com/search/repositories", processData = {
+                it.items.map { item ->
+                    obj {
+                        this.value = item.id
+                        this.text = item.name
+                        this.data = obj {
+                            this.subtext = item.owner.login
+                        }
+                    }
+                }
+            }, processParams = obj {
+                q = "{{{q}}}"
+            }, minLength = 3, requestDelay = 1000)
+            setEventListener<Select> {
+                change = { _ ->
+                    println(self.value)
+                }
+            }
+        }
+        root.add(select8)
+        val mbuttons8 = Button("Sprawdz repozytorium").setEventListener<Button> {
+            click = {
+                println(select8.value)
+                select8.value = null
+            }
+        }
+        root.add(mbuttons8)
+
         val container = SimplePanel(setOf("abc", "def"))
         val h1 = Tag(H1, "To jest <i>test pisania</i> tekstu", false, null, classes = setOf("test", "test2"))
         container.add(h1)
diff --git a/src/main/kotlin/pl/treksoft/kvision/core/KVManager.kt b/src/main/kotlin/pl/treksoft/kvision/core/KVManager.kt
index a1f48982..541733b3 100644
--- a/src/main/kotlin/pl/treksoft/kvision/core/KVManager.kt
+++ b/src/main/kotlin/pl/treksoft/kvision/core/KVManager.kt
@@ -14,6 +14,9 @@ import kotlin.browser.document
 import kotlin.dom.clear
 
 object KVManager {
+    internal const val AJAX_REQUEST_DELAY = 300
+    internal const val KVNULL = "#kvnull"
+
     private val bootstrapWebpack = require("bootstrap-webpack")
     private val fontAwesomeWebpack = require("font-awesome-webpack")
     private val resizable = require("jquery-resizable-dom")
@@ -23,6 +26,7 @@ object KVManager {
     private val bootstrapSelectI18n = require("./js/bootstrap-select-i18n.min.js")
     private val bootstrapSelectAjaxCss = require("ajax-bootstrap-select/dist/css/ajax-bootstrap-select.min.css")
     private val bootstrapSelectAjax = require("ajax-bootstrap-select/dist/js/ajax-bootstrap-select.min.js")
+    private val bootstrapSelectAjaxI18n = require("./js/ajax-bootstrap-select.pl-PL.js")
 
     private val sdPatch = Snabbdom.init(arrayOf(classModule, attributesModule, propsModule, styleModule,
             eventListenersModule, datasetModule))
diff --git a/src/main/kotlin/pl/treksoft/kvision/form/select/AjaxOptions.kt b/src/main/kotlin/pl/treksoft/kvision/form/select/AjaxOptions.kt
index 8dbb5f65..d86e6899 100644
--- a/src/main/kotlin/pl/treksoft/kvision/form/select/AjaxOptions.kt
+++ b/src/main/kotlin/pl/treksoft/kvision/form/select/AjaxOptions.kt
@@ -1,5 +1,7 @@
 package pl.treksoft.kvision.form.select
 
+import pl.treksoft.kvision.core.KVManager.AJAX_REQUEST_DELAY
+import pl.treksoft.kvision.core.KVManager.KVNULL
 import pl.treksoft.kvision.snabbdom.obj
 
 enum class HttpType(val type: String) {
@@ -20,17 +22,38 @@ data class AjaxOptions(val url: String, val processData: (dynamic) -> dynamic,
                        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 preserveSelected: Boolean = true,
-                       val requestDelay: Int = 300, val restoreOnError: Boolean = false)
+                       val requestDelay: Int = AJAX_REQUEST_DELAY, val restoreOnError: Boolean = false)
 
-fun AjaxOptions.toJs(): dynamic {
+fun AjaxOptions.toJs(emptyOption: Boolean): dynamic {
+    val procData = { data: dynamic ->
+        val processedData = this.processData(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
+        }
+    }
     return obj {
         this.ajax = obj {
             this.url = url
             this.type = httpType.type
+            this.dataType = dataType.type
             this.data = processParams
         }
-        this.preprocessData = processData
+        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
     }
 }
-
-data class AjaxData(val value: String, val text: String? = null)
diff --git a/src/main/kotlin/pl/treksoft/kvision/form/select/Select.kt b/src/main/kotlin/pl/treksoft/kvision/form/select/Select.kt
index 321e3a70..4b991605 100644
--- a/src/main/kotlin/pl/treksoft/kvision/form/select/Select.kt
+++ b/src/main/kotlin/pl/treksoft/kvision/form/select/Select.kt
@@ -7,8 +7,9 @@ import pl.treksoft.kvision.panel.SimplePanel
 import pl.treksoft.kvision.snabbdom.SnOn
 import pl.treksoft.kvision.snabbdom.StringPair
 
+@Suppress("TooManyFunctions")
 open class Select(options: List<StringPair>? = null, value: String? = null,
-                  multiple: Boolean = false, label: String? = null,
+                  multiple: Boolean = false, ajaxOptions: AjaxOptions? = null, label: String? = null,
                   rich: Boolean = false) : SimplePanel(setOf("form-group")), StringFormField {
 
     var options
@@ -36,6 +37,11 @@ open class Select(options: List<StringPair>? = null, value: String? = null,
         set(value) {
             input.multiple = value
         }
+    var ajaxOptions
+        get() = input.ajaxOptions
+        set(value) {
+            input.ajaxOptions = value
+        }
     var maxOptions
         get() = input.maxOptions
         set(value) {
@@ -93,7 +99,8 @@ open class Select(options: List<StringPair>? = null, value: String? = null,
         }
 
     private val idc = "kv_form_select_" + counter
-    val input: SelectInput = SelectInput(options, value, multiple, null, setOf("form-control")).apply { id = idc }
+    val input: SelectInput = SelectInput(options, value, multiple, ajaxOptions,
+            setOf("form-control")).apply { id = idc }
     val flabel: FieldLabel = FieldLabel(idc, label, rich)
 
     init {
@@ -159,4 +166,8 @@ open class Select(options: List<StringPair>? = null, value: String? = null,
     open fun toggleOptions() {
         input.toggleOptions()
     }
+
+    open fun deselect() {
+        input.deselect()
+    }
 }
diff --git a/src/main/kotlin/pl/treksoft/kvision/form/select/SelectInput.kt b/src/main/kotlin/pl/treksoft/kvision/form/select/SelectInput.kt
index 7522ef98..c95cf434 100644
--- a/src/main/kotlin/pl/treksoft/kvision/form/select/SelectInput.kt
+++ b/src/main/kotlin/pl/treksoft/kvision/form/select/SelectInput.kt
@@ -2,6 +2,7 @@ package pl.treksoft.kvision.form.select
 
 import com.github.snabbdom.VNode
 import pl.treksoft.kvision.core.CssSize
+import pl.treksoft.kvision.core.KVManager.KVNULL
 import pl.treksoft.kvision.core.Widget
 import pl.treksoft.kvision.form.INPUTSIZE
 import pl.treksoft.kvision.form.StringFormField
@@ -11,13 +12,12 @@ import pl.treksoft.kvision.snabbdom.StringBoolPair
 import pl.treksoft.kvision.snabbdom.StringPair
 import pl.treksoft.kvision.snabbdom.obj
 
-private val _aKVNULL = "#kvnull"
-
 enum class SELECTWIDTHTYPE(val value: String) {
     AUTO("auto"),
     FIT("fit")
 }
 
+@Suppress("TooManyFunctions")
 open class SelectInput(options: List<StringPair>? = null, value: String? = null,
                        multiple: Boolean = false, ajaxOptions: AjaxOptions? = null,
                        classes: Set<String> = setOf()) : SimplePanel(classes), StringFormField {
@@ -125,7 +125,7 @@ open class SelectInput(options: List<StringPair>? = null, value: String? = null,
                         }
                     } else {
                         val vs = it as String
-                        if (_aKVNULL == vs) {
+                        if (KVNULL == vs) {
                             null
                         } else {
                             vs
@@ -165,15 +165,17 @@ open class SelectInput(options: List<StringPair>? = null, value: String? = null,
     }
 
     private fun setChildrenFromOptions() {
-        super.removeAll()
-        if (emptyOption) {
-            super.add(SelectOption(_aKVNULL, ""))
-        }
-        options?.let {
-            val c = it.map {
-                SelectOption(it.first, it.second)
+        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)
             }
-            super.addAll(c)
         }
         this.refreshSelectInput()
     }
@@ -190,6 +192,10 @@ open class SelectInput(options: List<StringPair>? = null, value: String? = null,
         getElementJQueryD()?.selectpicker("toggle")
     }
 
+    open fun deselect() {
+        getElementJQueryD()?.selectpicker("deselectAll")
+    }
+
     override fun getSnClass(): List<StringBoolPair> {
         val cl = super.getSnClass().toMutableList()
         cl.add("selectpicker" to true)
@@ -253,7 +259,7 @@ open class SelectInput(options: List<StringPair>? = null, value: String? = null,
     @Suppress("UnsafeCastFromDynamic")
     override fun afterInsert(node: VNode) {
         ajaxOptions?.let {
-            getElementJQueryD()?.selectpicker("render").ajaxSelectPicker(it.toJs())
+            getElementJQueryD()?.selectpicker("render").ajaxSelectPicker(it.toJs(emptyOption))
         } ?: getElementJQueryD()?.selectpicker("render")
 
         this.getElementJQuery()?.on("show.bs.select", { e, _ ->