From 90a2c91651a2639f93c0979abc72851e8d43cab5 Mon Sep 17 00:00:00 2001
From: Simon Ser <contact@emersion.fr>
Date: Sun, 23 Oct 2022 20:18:33 +0200
Subject: [PATCH] Load initial members state via WHO when channel is selected

Closes: https://todo.sr.ht/~emersion/gamja/13
---
 components/app.js | 18 +++++++++++++++++-
 state.js          |  1 +
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/components/app.js b/components/app.js
index d3c60ae..134896d 100644
--- a/components/app.js
+++ b/components/app.js
@@ -578,6 +578,10 @@ export default class App extends Component {
 				this.whoUserBuffer(buf.name, buf.server);
 			}
 
+			if (buf.type === BufferType.CHANNEL && !buf.hasInitialWho) {
+				this.whoChannelBuffer(buf.name, buf.server);
+			}
+
 			if (buf.type !== BufferType.SERVER) {
 				document.title = buf.name + ' · ' + this.baseTitle;
 			} else {
@@ -1349,6 +1353,16 @@ export default class App extends Component {
 		}
 	}
 
+	whoChannelBuffer(target, serverID) {
+		let client = this.clients.get(serverID);
+
+		client.who(target, {
+			fields: ["flags", "hostname", "nick", "realname", "username", "account"],
+		}).then(() => {
+			this.setBufferState({ name: target, server: serverID }, { hasInitialWho: true });
+		});
+	}
+
 	open(target, serverID, password) {
 		if (!serverID) {
 			serverID = State.getActiveServerID(this.state);
@@ -1359,7 +1373,9 @@ export default class App extends Component {
 			this.switchBuffer({ server: serverID });
 		} else if (client.isChannel(target)) {
 			this.switchToChannel = target;
-			client.join(target, password).catch((err) => {
+			client.join(target, password).then(() => {
+				this.whoChannelBuffer(target, serverID);
+			}).catch((err) => {
 				this.showError(err);
 			});
 		} else {
diff --git a/state.js b/state.js
index de52790..4510252 100644
--- a/state.js
+++ b/state.js
@@ -343,6 +343,7 @@ export const State = {
 			serverInfo: null, // if server
 			joined: false, // if channel
 			topic: null, // if channel
+			hasInitialWho: false, // if channel
 			members: new irc.CaseMapMap(null, client.cm), // if channel
 			messages: [],
 			unread: Unread.NONE,