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[bookstack] / resources / js / services / events.js

diff --git a/resources/js/services/events.js b/resources/js/services/events.js
index fa3ed7fdfcb55ebd341ee44543eafd58b697d14d..6668014e7b6913ca4fbee93fe11f69307ada3349 100644 (file)
--- a/resources/js/services/events.js
+++ b/resources/js/services/events.js
@@ -1,55 +1,66 @@
+const listeners = {};
+const stack = [];
+

 /**
 /**

- * Simple global events manager
+ * Emit a custom event for any handlers to pick-up.
+ * @param {String} eventName
+ * @param {*} eventData

  */
  */

-class Events {
-    constructor() {
-        this.listeners = {};
-        this.stack = [];
+function emit(eventName, eventData) {
+    stack.push({name: eventName, data: eventData});
+    if (typeof listeners[eventName] === 'undefined') return this;
+    let eventsToStart = listeners[eventName];
+    for (let i = 0; i < eventsToStart.length; i++) {
+        let event = eventsToStart[i];
+        event(eventData);

     }
     }

+}

 
 

-    /**
-     * Emit a custom event for any handlers to pick-up.
-     * @param {String} eventName
-     * @param {*} eventData
-     * @returns {Events}
-     */
-    emit(eventName, eventData) {
-        this.stack.push({name: eventName, data: eventData});
-        if (typeof this.listeners[eventName] === 'undefined') return this;
-        let eventsToStart = this.listeners[eventName];
-        for (let i = 0; i < eventsToStart.length; i++) {
-            let event = eventsToStart[i];
-            event(eventData);
-        }
-        return this;
-    }
+/**
+ * Listen to a custom event and run the given callback when that event occurs.
+ * @param {String} eventName
+ * @param {Function} callback
+ * @returns {Events}
+ */
+function listen(eventName, callback) {
+    if (typeof listeners[eventName] === 'undefined') listeners[eventName] = [];
+    listeners[eventName].push(callback);
+}

 
 

-    /**
-     * Listen to a custom event and run the given callback when that event occurs.
-     * @param {String} eventName
-     * @param {Function} callback
-     * @returns {Events}
-     */
-    listen(eventName, callback) {
-        if (typeof this.listeners[eventName] === 'undefined') this.listeners[eventName] = [];
-        this.listeners[eventName].push(callback);
-        return this;
-    }
+/**
+ * Emit an event for public use.
+ * Sends the event via the native DOM event handling system.
+ * @param {Element} targetElement
+ * @param {String} eventName
+ * @param {Object} eventData
+ */
+function emitPublic(targetElement, eventName, eventData) {
+    const event = new CustomEvent(eventName, {
+        detail: eventData,
+        bubbles: true
+    });
+    targetElement.dispatchEvent(event);
+}

 
 

-    /**
-     * Emit an event for public use.
-     * Sends the event via the native DOM event handling system.
-     * @param {Element} targetElement
-     * @param {String} eventName
-     * @param {Object} eventData
-     */
-    emitPublic(targetElement, eventName, eventData) {
-        const event = new CustomEvent(eventName, {
-            detail: eventData,
-            bubbles: true
-        });
-        targetElement.dispatchEvent(event);
+/**
+ * Notify of a http error.
+ * Check for standard scenarios such as validation errors and
+ * formats an error notification accordingly.
+ * @param {Error} error
+ */
+function showValidationErrors(error) {
+    if (!error.status) return;
+    if (error.status === 422 && error.data) {
+        const message = Object.values(error.data).flat().join('\n');
+        emit('error', message);

     }
 }
 
     }
 }
 

-export default Events;
\ No newline at end of file
+export default {
+    emit,
+    emitPublic,
+    listen,
+    success: (msg) => emit('success', msg),
+    error: (msg) => emit('error', msg),
+    showValidationErrors,
+}
\ No newline at end of file