From 81dc76760b72d93e149cbbefaf6f87562f28f5b2 Mon Sep 17 00:00:00 2001
From: cagataycivici <cagatay.civici@gmail.com>
Date: Fri, 17 Apr 2020 23:37:20 +0300
Subject: [PATCH] Fixed #271 - Value slot for Dropdown

---
 src/components/dropdown/Dropdown.vue |  6 ++++-
 src/views/dropdown/DropdownDemo.vue  | 23 +++++++++++++++--
 src/views/dropdown/DropdownDoc.vue   | 37 ++++++++++++++++++++++++----
 3 files changed, 58 insertions(+), 8 deletions(-)

diff --git a/src/components/dropdown/Dropdown.vue b/src/components/dropdown/Dropdown.vue
index 8c4c1b6ef..e27f4348e 100644
--- a/src/components/dropdown/Dropdown.vue
+++ b/src/components/dropdown/Dropdown.vue
@@ -6,7 +6,11 @@
         </div>
         <input v-if="editable" type="text" class="p-dropdown-label p-inputtext" :disabled="disabled" @focus="onFocus" @blur="onBlur" :placeholder="placeholder" :value="editableInputValue" @input="onEditableInput"
             aria-haspopup="listbox" :aria-expanded="overlayVisible">
-        <label v-if="!editable" :class="labelClass">{{label}}</label>
+        <label v-if="!editable" :class="labelClass">
+            <slot name="value" :value="value">
+                {{label}}
+            </slot>
+        </label>
         <i v-if="showClear && value != null" class="p-dropdown-clear-icon pi pi-times" @click="onClearClick($event)"></i>
         <div class="p-dropdown-trigger" role="button" aria-haspopup="listbox" :aria-expanded="overlayVisible">
             <span class="p-dropdown-trigger-icon pi pi-chevron-down p-clickable"></span>
diff --git a/src/views/dropdown/DropdownDemo.vue b/src/views/dropdown/DropdownDemo.vue
index 74867f359..81ec7d45c 100644
--- a/src/views/dropdown/DropdownDemo.vue
+++ b/src/views/dropdown/DropdownDemo.vue
@@ -15,7 +15,16 @@
             <Dropdown v-model="selectedCity2" :options="cities" optionLabel="name" :editable="true"/>
 
             <h3>Advanced with Templating, Filtering and Clear Icon</h3>
-            <Dropdown v-model="selectedCar" :options="cars" optionLabel="brand" placeholder="Select a Car" :filter="true" :showClear="true">
+            <Dropdown v-model="selectedCar" :options="cars" optionLabel="brand" :filter="true" :showClear="true">
+                <template #value="slotProps">
+                    <div class="p-dropdown-car-value" v-if="slotProps.value">
+                        <img :alt="slotProps.value.brand" :src="'demo/images/car/' + slotProps.value.brand + '.png'" />
+                        <span>{{slotProps.value.brand}}</span>
+                    </div>
+                    <span v-else>
+                        Select a Car
+                    </span>
+                </template>
                 <template #option="slotProps">
                     <div class="p-dropdown-car-option">
                         <img :alt="slotProps.option.brand" :src="'demo/images/car/' + slotProps.option.brand + '.png'" />
@@ -69,7 +78,8 @@ export default {
     width: 12em;
 }
 
-.p-dropdown-car-option {
+.p-dropdown-car-option,
+.p-dropdown-car-value {
     display: flex;
     justify-content: space-between;
     align-items: center;
@@ -83,4 +93,13 @@ export default {
         margin-top: .125em;
     }
 }
+
+.p-dropdown-car-value {
+    justify-content: flex-start;
+}
+
+.p-dropdown-empty-car-token {
+    background: #d95f00;
+    color: #ffffff;
+}
 </style>
diff --git a/src/views/dropdown/DropdownDoc.vue b/src/views/dropdown/DropdownDoc.vue
index 30d48bec1..2126b4fbc 100644
--- a/src/views/dropdown/DropdownDoc.vue
+++ b/src/views/dropdown/DropdownDoc.vue
@@ -40,10 +40,20 @@ data() {
 
 				<h3>Custom Content</h3>
 				<p>Label of an option is used as the display text of an item by default, for custom content support define an <i>option</i> template that gets the option instance as a parameter.</p>
+                <p>In addition the <i>value</i> template can be used to customize the selected value.</p>
 <CodeHighlight>
 <template v-pre>
-&lt;Dropdown v-model="selectedCar" :options="cars" optionLabel="brand" placeholder="Select a Car" :filter="true" :showClear="true"&gt;
-	&lt;template #option="slotProps"&gt;
+&lt;Dropdown v-model="selectedCar" :options="cars" optionLabel="brand" :filter="true" :showClear="true"&gt;
+	&lt;template #value="slotProps"&gt;
+        &lt;div class="p-dropdown-car-value" v-if="slotProps.value"&gt;
+            &lt;img :alt="slotProps.value.brand" :src="'demo/images/car/' + slotProps.value.brand + '.png'" /&gt;
+            &lt;span&gt;{{slotProps.value.brand}}&lt;/span&gt;
+        &lt;/div&gt;
+        &lt;span v-else&gt;
+            Select a Car
+        &lt;/span&gt;
+    &lt;/template&gt;
+    &lt;template #option="slotProps"&gt;
 		&lt;div class="p-dropdown-car-option"&gt;
 			&lt;img :alt="slotProps.option.brand" :src="'demo/images/car/' + slotProps.option.brand + '.png'" /&gt;
 			&lt;span&gt;{{slotProps.option.brand}}&lt;/span&gt;
@@ -284,7 +294,14 @@ data() {
 &lt;Dropdown v-model="selectedCity2" :options="cities" optionLabel="name" :editable="true"/&gt;
 
 &lt;h3&gt;Advanced with Templating, Filtering and Clear Icon&lt;/h3&gt;
-&lt;Dropdown v-model="selectedCar" :options="cars" optionLabel="brand" placeholder="Select a Car" :filter="true" :showClear="true"&gt;
+&lt;Dropdown v-model="selectedCar" :options="cars" optionLabel="brand" :filter="true" :showClear="true"&gt;
+    &lt;div class="p-dropdown-car-value" v-if="slotProps.value"&gt;
+        &lt;img :alt="slotProps.value.brand" :src="'demo/images/car/' + slotProps.value.brand + '.png'" /&gt;
+        &lt;span&gt;{{slotProps.value.brand}}&lt;/span&gt;
+    &lt;/div&gt;
+    &lt;span v-else&gt;
+        Select a Car
+    &lt;/span&gt;
     &lt;template #option="slotProps"&gt;
         &lt;div class="p-dropdown-car-option"&gt;
             &lt;img :alt="slotProps.option.brand" :src="'demo/images/car/' + slotProps.option.brand + '.png'" /&gt;
@@ -327,10 +344,11 @@ export default {
 
 <CodeHighlight lang="css">
 .p-dropdown {
-	width: 12em;
+    width: 12em;
 }
 
-.p-dropdown-car-option {
+.p-dropdown-car-option,
+.p-dropdown-car-value {
     display: flex;
     justify-content: space-between;
     align-items: center;
@@ -344,6 +362,15 @@ export default {
         margin-top: .125em;
     }
 }
+
+.p-dropdown-car-value {
+    justify-content: flex-start;
+}
+
+.p-dropdown-empty-car-token {
+    background: #d95f00;
+    color: #ffffff;
+}
 </CodeHighlight>
 			</TabPanel>
 		</TabView>