Refactor #3797 - Splitter updates

components/lib/splitter/Splitter.d.ts

@@ -10,6 +10,16 @@
 import { VNode } from 'vue';
 import { ClassComponent, GlobalComponentConstructor } from '../ts-helpers';
 
+export declare type SplitterPassThroughOptionType = SplitterPassThroughAttributes | ((options: SplitterPassThroughMethodOptions) => SplitterPassThroughAttributes) | null | undefined;
+
+/**
+ * Custom passthrough(pt) option method.
+ */
+export interface SplitterPassThroughMethodOptions {
+    props: SplitterProps;
+    state: SplitterState;
+}
+
 /**
  * Custom resize start event.
  * @see {@link SplitterEmits.resizestar}
@@ -40,6 +50,42 @@ export interface SplitterResizeEndEvent {
     sizes: number[];
 }
 
+/**
+ * Custom passthrough(pt) options.
+ * @see {@link SplitterProps.pt}
+ */
+export interface SplitterPassThroughOptions {
+    /**
+     * Uses to pass attributes to the root's DOM element.
+     */
+    root?: SplitterPassThroughOptionType;
+    /**
+     * Uses to pass attributes to the gutter's DOM element.
+     */
+    gutter?: SplitterPassThroughOptionType;
+    /**
+     * Uses to pass attributes to the gutter handler's DOM element.
+     */
+    gutterhandler?: SplitterPassThroughOptionType;
+}
+
+/**
+ * Custom passthrough attributes for each DOM elements
+ */
+export interface SplitterPassThroughAttributes {
+    [key: string]: any;
+}
+
+/**
+ * Defines current inline state in Panel component.
+ */
+export interface SplitterState {
+    /**
+     * Previous size state as a number.
+     */
+    prevSize: number;
+}
+
 /**
  * Defines valid properties in Splitter component.
  */
@@ -68,6 +114,11 @@ export interface SplitterProps {
      * @defaultValue 1
      */
     step?: number | undefined;
+    /**
+     * Uses to pass attributes to DOM elements inside the component.
+     * @type {SplitterPassThroughOptions}
+     */
+    pt?: SplitterPassThroughOptions;
 }
 
 /**

components/lib/splitter/Splitter.vue

@@ -1,19 +1,32 @@
 <template>
-    <div :class="containerClass">
+    <div :class="containerClass" v-bind="ptm('root')">
         <template v-for="(panel, i) of panels" :key="i">
             <component :is="panel" tabindex="-1"></component>
-            <div v-if="i !== panels.length - 1" class="p-splitter-gutter" @mousedown="onGutterMouseDown($event, i)" @touchstart="onGutterTouchStart($event, i)" @touchmove="onGutterTouchMove($event, i)" @touchend="onGutterTouchEnd($event, i)">
-                <div class="p-splitter-gutter-handle" tabindex="0" :style="gutterStyle" role="separator" :aria-orientation="layout" :aria-valuenow="prevSize" @keyup="onGutterKeyUp" @keydown="onGutterKeyDown($event, i)"></div>
+            <div
+                v-if="i !== panels.length - 1"
+                class="p-splitter-gutter"
+                role="separator"
+                tabindex="-1"
+                @mousedown="onGutterMouseDown($event, i)"
+                @touchstart="onGutterTouchStart($event, i)"
+                @touchmove="onGutterTouchMove($event, i)"
+                @touchend="onGutterTouchEnd($event, i)"
+                v-bind="ptm('gutter')"
+            >
+                <div class="p-splitter-gutter-handle" tabindex="0" :style="gutterStyle" :aria-orientation="layout" :aria-valuenow="prevSize" @keyup="onGutterKeyUp" @keydown="onGutterKeyDown($event, i)" v-bind="ptm('gutterhandler')"></div>
+
             </div>
         </template>
     </div>
 </template>
 
 <script>
+import ComponentBase from 'primevue/base';
 import { DomHandler, ObjectUtils } from 'primevue/utils';
 
 export default {
     name: 'Splitter',
+    extends: ComponentBase,
     emits: ['resizestart', 'resizeend'],
     props: {
         layout: {