Add custom flash library that works as expected

resources/assets/scripts/components/Flash.vue

@@ -0,0 +1,92 @@
+<template>
+    <div v-if="notifications.length > 0">
+        <transition-group tag="div" class="mb-2" name="fade">
+            <div :class="item.class" class="lg:inline-flex mb-2" role="alert" :key="index" v-for="(item, index) in notifications">
+                <span class="title" v-html="item.title" v-if="item.title.length > 0"></span>
+                <span class="message" v-html="item.message"></span>
+            </div>
+        </transition-group>
+    </div>
+</template>
+
+<script>
+    export default {
+        name: 'flash',
+        props: {
+            timeout: {
+                type: Number,
+                default: 0,
+            },
+            types: {
+                type: Object,
+                default: function () {
+                    return {
+                        base: 'alert',
+                        success: 'alert success',
+                        info: 'alert info',
+                        warning: 'alert warning',
+                        error: 'alert error',
+                    }
+                }
+            }
+        },
+
+        data: function () {
+            return {
+                notifications: [],
+            };
+        },
+
+        /**
+         * Listen for flash events.
+         */
+        created: function () {
+            const self = this;
+            window.events.$on('flash', function (data) {
+                self.flash(data.message, data.title, data.severity);
+            });
+
+            window.events.$on('clear-flashes', function () {
+                self.clear();
+            });
+        },
+
+        methods: {
+            /**
+             * Flash a message to the screen when a flash event is emitted over
+             * the global event stream.
+             *
+             * @param {string} message
+             * @param {string} title
+             * @param {string} severity
+             */
+            flash: function (message, title, severity) {
+                this.notifications.push({
+                    message, severity, title, class: this.types[severity] || this.types.base,
+                });
+
+                if (this.timeout > 0) {
+                    setTimeout(this.hide, this.timeout);
+                }
+            },
+
+            /**
+             * Clear all of the flash messages from the screen.
+             */
+            clear: function () {
+                this.notifications = [];
+                window.events.$emit('flashes-cleared');
+            },
+
+            /**
+             * Hide a notification after a given amount of time.
+             *
+             * @param {int} item
+             */
+            hide: function (item = this.notifications[0]) {
+                let key = this.notifications.indexOf(item);
+                this.notifications.splice(key, 1);
+            },
+        }
+    };
+</script>