Feature: Support an Emoji selector in the chat widget (#773)

* Adds emoji widget to web widget
* Style fixes for the send button
* Adds cursor to emoji widget action buttons

app/javascript/widget/components/ChatAttachment.vue

@@ -1,7 +1,7 @@
 <template>
   <file-upload :size="4096 * 2048" @input-file="onFileUpload">
     <span class="attachment-button ">
-      <i v-if="!isUploading.image"></i>
+      <i v-if="!isUploading.image" class="ion-android-attach" />
       <spinner v-if="isUploading" size="small" />
     </span>
   </file-upload>
@@ -52,18 +52,16 @@ export default {
   cursor: pointer;
   position: relative;
   padding-right: $space-smaller;
-  display: block;
   width: 20px;
-  height: 20px;
 
   i {
-    padding: 0;
-    width: 100%;
-    height: 100%;
-    display: block;
-    background: white center center no-repeat;
-    background-size: contain;
-    background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' fill='none' stroke='%23999a9b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' class='feather feather-paperclip'%3E%3Cpath d='M21 11l-9 9a6 6 0 01-8-8l9-9a4 4 0 016 5L9 17a2 2 0 01-2-2l8-9' /%3E%3C/svg%3E");
+    font-size: $font-size-large;
+    color: $color-gray;
   }
 }
 </style>
+<style lang="scss">
+.file-uploads .attachment-button + label {
+  cursor: pointer;
+}
+</style>

app/javascript/widget/components/ChatInputWrap.vue

@@ -1,20 +1,38 @@
 <template>
   <div class="chat-message--input">
-    <chat-attachment-button :on-attach="onSendAttachment" />
-    <ChatInputArea v-model="userInput" :placeholder="placeholder" />
-    <ChatSendButton
-      :on-click="handleButtonClick"
-      :disabled="!userInput.length"
-      :color="widgetColor"
-    />
+    <chat-input-area v-model="userInput" :placeholder="placeholder" />
+    <div class="button-wrap">
+      <chat-attachment-button
+        v-if="showAttachment"
+        :on-attach="onSendAttachment"
+      />
+      <emoji-input
+        v-if="showEmojiPicker"
+        v-on-clickaway="hideEmojiPicker"
+        :on-click="emojiOnClick"
+      />
+      <i
+        class="emoji-toggle icon ion-happy-outline"
+        :class="{ active: showEmojiPicker }"
+        @click="toggleEmojiPicker()"
+      />
+      <chat-send-button
+        v-if="showSendButton"
+        :on-click="handleButtonClick"
+        :color="widgetColor"
+      />
+    </div>
   </div>
 </template>
 
 <script>
 import { mapGetters } from 'vuex';
+import emojione from 'emojione';
+import { mixin as clickaway } from 'vue-clickaway';
 import ChatSendButton from 'widget/components/ChatSendButton.vue';
 import ChatAttachmentButton from 'widget/components/ChatAttachment.vue';
 import ChatInputArea from 'widget/components/ChatInputArea.vue';
+import EmojiInput from 'dashboard/components/widgets/emoji/EmojiInput';
 
 export default {
   name: 'ChatInputWrap',
@@ -22,8 +40,9 @@ export default {
     ChatAttachmentButton,
     ChatSendButton,
     ChatInputArea,
+    EmojiInput,
   },
-
+  mixins: [clickaway],
   props: {
     placeholder: {
       type: String,
@@ -42,6 +61,7 @@ export default {
   data() {
     return {
       userInput: '',
+      showEmojiPicker: false,
     };
   },
 
@@ -49,6 +69,12 @@ export default {
     ...mapGetters({
       widgetColor: 'appConfig/getWidgetColor',
     }),
+    showAttachment() {
+      return this.userInput.length === 0;
+    },
+    showSendButton() {
+      return this.userInput.length > 0;
+    },
   },
 
   destroyed() {
@@ -71,6 +97,19 @@ export default {
         this.handleButtonClick();
       }
     },
+    toggleEmojiPicker() {
+      this.showEmojiPicker = !this.showEmojiPicker;
+    },
+    hideEmojiPicker() {
+      if (this.showEmojiPicker) {
+        this.toggleEmojiPicker();
+      }
+    },
+    emojiOnClick(emoji) {
+      this.userInput = emojione.shortnameToUnicode(
+        `${this.userInput}${emoji.shortname} `
+      );
+    },
   },
 };
 </script>
@@ -82,4 +121,24 @@ export default {
   align-items: center;
   display: flex;
 }
+
+.emoji-toggle {
+  font-size: $font-size-large;
+  color: $color-gray;
+  padding-right: $space-smaller;
+  cursor: pointer;
+}
+
+.emoji-dialog {
+  right: $space-one;
+}
+
+.file-uploads {
+  margin-right: $space-small;
+}
+
+.button-wrap {
+  display: flex;
+  align-items: center;
+}
 </style>

app/javascript/widget/components/ChatSendButton.vue

@@ -57,7 +57,7 @@ export default {
     display: flex;
     align-items: center;
     justify-content: center;
-    font-size: $font-size-large;
+    font-size: $font-size-big;
     font-weight: $font-weight-medium;
   }
 }