commit 54fe9f17bf84728cf301f171ce378a9a15e81f96
Author: Sqaaakoi <sqaaakoi-git@sqaaakoi.xyz>
Date:   Wed Feb 26 03:11:08 2025 +1300

    ChannelDeck working prototype

diff --git a/ChannelDeckStore.tsx b/ChannelDeckStore.tsx
new file mode 100644
index 0000000..b4b10f1
--- /dev/null
+++ b/ChannelDeckStore.tsx
@@ -0,0 +1,66 @@
+import { proxyLazyWebpack, findByProps, findByPropsLazy } from "@webpack";
+import { Flux, FluxDispatcher, PopoutActions, PopoutWindowStore, SnowflakeUtils } from "@webpack/common";
+import DeckPopout from "./components/DeckPopout";
+
+export interface ChannelDeck {
+    id: string;
+    name: string;
+    color?: number;
+    columns: DeckColumn[];
+    open: boolean;
+}
+
+export interface DeckColumn {
+    channelId: string,
+    width: `${number}px` | `${number}%`;
+}
+
+// Don't wanna run before Flux and Dispatcher are ready!
+export const ChannelDeckStore = proxyLazyWebpack(() => {
+    class ChannelDeckStore extends Flux.Store {
+
+        public _decks = new Map<string, ChannelDeck>();
+
+        public windowKeyPrefix = "DISCORD_CHANNELDECK_DECK_";
+
+        public createDeck(deckState: Partial<Omit<ChannelDeck, "id">>) {
+            const deck = {
+                id: SnowflakeUtils.fromTimestamp(Date.now()),
+                name: "",
+                columns: [],
+                open: false,
+                ...deckState
+            };
+            this._decks.set(deck.id, deck);
+            this.updateDeck(deck.id);
+            return deck;
+        }
+
+        public getDeck(id: string) {
+            return this._decks.get(id);
+        }
+
+        public updateDeck(id: string) {
+            const deck = this.getDeck(id);
+            if (deck?.open && !PopoutWindowStore.getWindowKeys().includes(this.windowKeyPrefix + id))
+                PopoutActions.open(
+                    this.windowKeyPrefix + id,
+                    (key) => <DeckPopout deckId={id} windowKey={key} />, {
+                    defaultWidth: 1200,
+                    defaultHeight: 960
+                });
+            if (!deck?.open && PopoutWindowStore.getWindowKeys().includes(this.windowKeyPrefix + id))
+                this.getDeckWindow(id).close();
+            this.emitChange();
+        };
+
+        public getDeckWindow(id: string) {
+            return PopoutWindowStore.getWindow(this.windowKeyPrefix + id);
+        }
+    }
+
+    const store = new ChannelDeckStore(FluxDispatcher, {
+    });
+
+    return store;
+});;
diff --git a/components/DeckColumn.css b/components/DeckColumn.css
new file mode 100644
index 0000000..9b74f0c
--- /dev/null
+++ b/components/DeckColumn.css
@@ -0,0 +1,5 @@
+.vc-channelDeck-column {
+    height: 100%;
+    display: flex;
+    flex-direction: column;
+}
diff --git a/components/DeckColumn.tsx b/components/DeckColumn.tsx
new file mode 100644
index 0000000..322bf7b
--- /dev/null
+++ b/components/DeckColumn.tsx
@@ -0,0 +1,23 @@
+import { findByPropsLazy, findComponentByCodeLazy } from "@webpack";
+import "./DeckColumn.css";
+
+import { cl } from "./util";
+import { DeckColumn } from "../ChannelDeckStore";
+import { ChannelStore, GuildStore } from "@webpack/common";
+
+const Chat = findComponentByCodeLazy("filterAfterTimestamp:", "chatInputType");
+const ChatInputTypes = findByPropsLazy("FORM", "NORMAL");
+
+export default function DeckColumn({ column }: { column: DeckColumn; }) {
+    const channel = ChannelStore.getChannel(column.channelId);
+    const guild = GuildStore.getGuild(channel.guild_id);
+    return <div className={cl("column")} style={{
+        width: column.width
+    }}>
+        <Chat
+            channel={channel}
+            guild={guild}
+            chatInputType={ChatInputTypes.SIDEBAR}
+        />
+    </div>;
+};
diff --git a/components/DeckContent.css b/components/DeckContent.css
new file mode 100644
index 0000000..2c5ba65
--- /dev/null
+++ b/components/DeckContent.css
@@ -0,0 +1,4 @@
+.vc-channelDeck-content {
+    display: flex;
+    flex-grow: 1;
+}
diff --git a/components/DeckContent.tsx b/components/DeckContent.tsx
new file mode 100644
index 0000000..c362305
--- /dev/null
+++ b/components/DeckContent.tsx
@@ -0,0 +1,11 @@
+import "./DeckContent.css";
+
+import { cl, useDeck } from "./util";
+import DeckColumn from "./DeckColumn";
+
+export default function DeckContent() {
+    const deck = useDeck();
+    return <div className={cl("content")}>
+        {deck?.columns.map(column => <DeckColumn key={column.channelId} column={column} />)}
+    </div>;
+};
diff --git a/components/DeckPopout.tsx b/components/DeckPopout.tsx
new file mode 100644
index 0000000..35dd5f1
--- /dev/null
+++ b/components/DeckPopout.tsx
@@ -0,0 +1,23 @@
+import { findComponentByCodeLazy } from "@webpack";
+import { useStateFromStores } from "@webpack/common";
+import { ChannelDeckStore } from "../ChannelDeckStore";
+import DeckView from "./DeckView";
+import { DeckContext } from "./util";
+
+const PopoutWindow = findComponentByCodeLazy("Missing guestWindow reference");
+
+export default function DeckPopout({ deckId, windowKey }: { deckId: string; windowKey?: string; }) {
+    // Copy from an unexported function of the one they use in the experiment
+    // right click a channel and search withTitleBar:!0,windowKey
+    const deck = useStateFromStores([ChannelDeckStore], () => ChannelDeckStore.getDeck(deckId));
+
+    return <PopoutWindow
+        withTitleBar
+        windowKey={windowKey}
+        title={deck?.name}
+    >
+        <DeckContext.Provider value={deck}>
+            <DeckView />
+        </DeckContext.Provider>
+    </PopoutWindow>;
+};
diff --git a/components/DeckSidebar.css b/components/DeckSidebar.css
new file mode 100644
index 0000000..a5c0657
--- /dev/null
+++ b/components/DeckSidebar.css
@@ -0,0 +1,16 @@
+.vc-channelDeck-sidebar {
+    display: flex;
+    width: 40px;
+    height: 100%;
+    background: var(--bg-overlay-5, var(--background-secondary));
+}
+
+.vc-channelDeck-sidebar[data-tab] {
+    width: 320px;
+}
+
+.vc-channelDeck-sidebar-items {
+    display: flex;
+    width: 40px;
+    height: 100%;
+}
diff --git a/components/DeckSidebar.tsx b/components/DeckSidebar.tsx
new file mode 100644
index 0000000..6a22960
--- /dev/null
+++ b/components/DeckSidebar.tsx
@@ -0,0 +1,20 @@
+import { useState } from "@webpack/common";
+import "./DeckSidebar.css";
+
+import { cl } from "./util";
+
+enum SidebarTabs {
+    ADD_CHANNEL = "add_channel",
+    DECKS = "decks",
+    CONFIGURE = "configure"
+}
+
+export default function DeckSidebar() {
+    const [tab, setTab] = useState<SidebarTabs | null>(null);
+    const toggleTab = (value) => setTab((current) => current === value ? null : value);
+    return <div className={cl("sidebar")} data-tab={tab}>
+        <div className={cl("sidebar-items")}>
+
+        </div>
+    </div>;
+}
diff --git a/components/DeckView.css b/components/DeckView.css
new file mode 100644
index 0000000..3d1569c
--- /dev/null
+++ b/components/DeckView.css
@@ -0,0 +1,5 @@
+.vc-channelDeck-view {
+    display: flex;
+    width: 100%;
+    height: 100%;
+}
diff --git a/components/DeckView.tsx b/components/DeckView.tsx
new file mode 100644
index 0000000..ae4a683
--- /dev/null
+++ b/components/DeckView.tsx
@@ -0,0 +1,12 @@
+import "./DeckView.css";
+
+import DeckSidebar from "./DeckSidebar";
+import { cl } from "./util";
+import DeckContent from "./DeckContent";
+
+export default function DeckView() {
+    return <div className={cl("view")}>
+        <DeckSidebar />
+        <DeckContent />
+    </div>;
+};
diff --git a/components/util.ts b/components/util.ts
new file mode 100644
index 0000000..55314d5
--- /dev/null
+++ b/components/util.ts
@@ -0,0 +1,10 @@
+import { classNameFactory } from "@api/Styles";
+import { ChannelDeck } from "../ChannelDeckStore";
+import { React } from "@webpack/common";
+import { proxyLazy } from "@utils/index";
+
+export const cl = classNameFactory("vc-channelDeck-");
+
+export const DeckContext = proxyLazy(() => React.createContext<ChannelDeck | undefined>(undefined));
+
+export const useDeck = () => React.useContext(DeckContext);
diff --git a/index.tsx b/index.tsx
new file mode 100644
index 0000000..ead16ac
--- /dev/null
+++ b/index.tsx
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+import { Devs } from "@utils/constants";
+import definePlugin from "@utils/types";
+import showUnsupportedMessage from "./unsupportedMessage";
+import { ChannelDeckStore } from "./ChannelDeckStore";
+
+export default definePlugin({
+    name: "ChannelDeck",
+    description: 'Multi channel "deck" popout windows',
+    authors: [Devs.Sqaaakoi],
+
+    start() {
+        if (!Vencord?.Api?.Styles?.createStyle) return showUnsupportedMessage();
+    },
+
+    ChannelDeckStore
+});
diff --git a/unsupportedMessage.tsx b/unsupportedMessage.tsx
new file mode 100644
index 0000000..a7e9d02
--- /dev/null
+++ b/unsupportedMessage.tsx
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+import { showNotice } from "@api/Notices";
+import { Alerts, Forms } from "@webpack/common";
+
+export default function showUnsupportedMessage() {
+    showNotice("ChannelDeck requires Unified Styles API", "Details", () => {
+        Alerts.show({
+            title: "ChannelDeck",
+            body: <div>
+                <Forms.FormText>
+                    Your version of Vencord does not support injecting styles into popout windows.
+                    ChannelDeck opens in popout windows, and will look broken.
+                    <br /><br />
+                    You can resolve this issue by adding the Unified Styles API patch to your Vencord installation.
+                    You will need to manually merge the PR into your current Vencord branch.
+                    Detailed instructions are not documented here.
+                    If you cannot do this, wait for the API to be officially supported in Vencord.
+                </Forms.FormText>
+                <br />
+                <Forms.FormText type={Forms.FormText.Types.DESCRIPTION}>
+                    Disable the plugin to stop this notice from appearing again.
+                </Forms.FormText>
+            </div>,
+            confirmText: "View PR",
+            cancelText: "Dismiss",
+            onConfirm() {
+                open("https://github.com/Vendicated/Vencord/pull/3153", "_blank");
+            }
+        });
+    });
+}