From aa979f0fe44999ed5bf5ca182b3e8aa20a4af8ba Mon Sep 17 00:00:00 2001
From: matt1432 <matt@nelim.org>
Date: Thu, 25 Jul 2024 18:42:25 -0400
Subject: [PATCH] feat(ags clipboard): add wl-paste --watch

---
 modules/ags/config/services/clipboard.ts | 108 ++++++++++++++---------
 modules/ags/config/ts/clipboard/main.ts  |  11 ++-
 2 files changed, 74 insertions(+), 45 deletions(-)

diff --git a/modules/ags/config/services/clipboard.ts b/modules/ags/config/services/clipboard.ts
index a3ec28ad..b884510a 100644
--- a/modules/ags/config/services/clipboard.ts
+++ b/modules/ags/config/services/clipboard.ts
@@ -1,27 +1,42 @@
-const { execAsync } = Utils;
+const { execAsync, subprocess } = Utils;
 
 
-// TODO: add wl-paste --watch to not have to get history every time
-const MAX_CLIPS = 100;
-
 class Clipboard extends Service {
     static {
         Service.register(this, {
-            'clip-added': ['string'],
+            'clip-added': ['jsobject'],
             'history-searched': [],
         }, {
             clips: ['jsobject'],
         });
     }
 
+    private static _MAX_CLIPS = 100;
+
+    // Class Attributes
     private _clips_left = 0;
+
     private _clips: Map<number, { clip: string; isImage: boolean }> = new Map();
 
     get clips() {
         return this._clips;
     }
 
+    constructor() {
+        super();
 
+        this._getHistory();
+        this._watchClipboard();
+    }
+
+    // Public Class Methods
+    public copyOldItem(key: string | number): void {
+        execAsync([
+            'bash', '-c', `cliphist list | grep ${key} | cliphist decode | wl-copy`,
+        ]);
+    }
+
+    // Private Class Methods
     private _decrementClipsLeft() {
         if (--this._clips_left === 0) {
             this.emit('history-searched');
@@ -48,56 +63,65 @@ class Clipboard extends Service {
         }
     }
 
-    public copyOldItem(key: string | number): void {
-        execAsync([
-            'bash', '-c', `cliphist list | grep ${key} | cliphist decode | wl-copy`,
-        ]);
-    }
-
-    public getHistory() {
+    private _getHistory(n = Clipboard._MAX_CLIPS) {
         this._clips = new Map();
 
         // FIXME: this is necessary when not putting a cap on clip amount
         // exec(`prlimit --pid ${exec('pgrep ags')} --nofile=10024:`);
 
         // This command comes from '../../clipboard/script.sh'
-        execAsync('clipboard-manager')
-            .then((out) => {
-                const rawClips = out.split('\n');
+        execAsync('clipboard-manager').then((out) => {
+            const rawClips = out.split('\n');
 
-                this._clips_left = Math.min(rawClips.length - 1, MAX_CLIPS);
+            this._clips_left = Math.min(rawClips.length - 1, n);
 
-                rawClips.forEach(async(clip, i) => {
-                    if (i > MAX_CLIPS) {
-                        return;
-                    }
+            rawClips.forEach(async (clip, i) => {
+                if (i > n) {
+                    return;
+                }
 
-                    if (clip.includes('img')) {
-                        this._decrementClipsLeft();
-                        this._clips.set(
-                            parseInt((clip.match('[0-9]+') ?? [''])[0]),
+                if (clip.includes('img')) {
+                    this._decrementClipsLeft();
+
+                    const newClip: [number, {clip: string; isImage: boolean;}] = [
+                        parseInt((clip.match('[0-9]+') ?? [''])[0]),
+                        {
+                            clip,
+                            isImage: true,
+                        },
+                    ];
+
+                    this._clips.set(...newClip);
+                    this.emit('clip-added', newClip);
+                }
+                else {
+                    const decodedClip = await this._decodeItem(clip);
+
+                    if (decodedClip) {
+                        const newClip: [number, {clip: string; isImage: boolean;}] = [
+                            parseInt(clip),
                             {
-                                clip,
-                                isImage: true,
+                                clip: decodedClip,
+                                isImage: false,
                             },
-                        );
-                    }
-                    else {
-                        const decodedClip = await this._decodeItem(clip);
+                        ];
 
-                        if (decodedClip) {
-                            this._clips.set(
-                                parseInt(clip),
-                                {
-                                    clip: decodedClip,
-                                    isImage: false,
-                                },
-                            );
-                        }
+                        this._clips.set(...newClip);
+                        this.emit('clip-added', newClip);
                     }
-                });
-            })
-            .catch((error) => console.error(error));
+                }
+            });
+        }).catch((error) => console.error(error));
+    }
+
+    private _watchClipboard() {
+        subprocess(
+            ['wl-paste', '--watch', 'echo'],
+            () => {
+                this._getHistory(1);
+            },
+            () => {/**/},
+        );
     }
 }
 
diff --git a/modules/ags/config/ts/clipboard/main.ts b/modules/ags/config/ts/clipboard/main.ts
index 8a0f4728..1defdea6 100644
--- a/modules/ags/config/ts/clipboard/main.ts
+++ b/modules/ags/config/ts/clipboard/main.ts
@@ -60,16 +60,21 @@ export default () => {
             App.closeWindow('win-clipboard');
         },
 
-        init_rows: (list) => {
-            Clipboard.getHistory();
-
+        setup_list: (list) => {
             const CONNECT_ID = Clipboard.connect('history-searched', () => {
+                // Do every clip that existed before this widget
                 list.get_children().forEach((row) => {
                     row.destroy();
                 });
                 Clipboard.clips.forEach((clip, key) => {
                     makeItem(list, key, clip.clip, clip.isImage);
                 });
+
+                // Setup connection for new clips
+                Clipboard.connect('clip-added', (_, [key, clip]) => {
+                    makeItem(list, key, clip.clip, clip.isImage);
+                });
+
                 Clipboard.disconnect(CONNECT_ID);
             });
         },