Open Khoj Chat as a Pane instead of a Modal

- Allows having it open on the side as you traverse your Obsidian notes
- Allow faster time to response, having responses visible for context
- Enables ambient interactions

src/interface/obsidian/src/chat_view.ts

@@ -1,6 +1,8 @@
-import { App, MarkdownRenderer, Modal, request, requestUrl, setIcon } from 'obsidian';
+import { ItemView, MarkdownRenderer, WorkspaceLeaf, request, requestUrl, setIcon } from 'obsidian';
 import { KhojSetting } from 'src/settings';
 
+export const KHOJ_CHAT_VIEW = "khoj-chat-view";
+
 export interface ChatJsonResult {
     image?: string;
     detail?: string;
@@ -9,7 +11,7 @@ export interface ChatJsonResult {
 }
 
 
-export class KhojChatModal extends Modal {
+export class KhojChatView extends ItemView {
     result: string;
     setting: KhojSetting;
     region: string;
@@ -17,13 +19,13 @@ export class KhojChatModal extends Modal {
     countryName: string;
     timezone: string;
 
-    constructor(app: App, setting: KhojSetting) {
-        super(app);
+    constructor(leaf: WorkspaceLeaf, setting: KhojSetting) {
+        super(leaf);
+
         this.setting = setting;
 
         // Register Modal Keybindings to send user message
-        this.scope.register([], 'Enter', async () => { await this.chat() });
-
+        // this.scope.register([], 'Enter', async () => { await this.chat() });
 
         fetch("https://ipapi.co/json")
             .then(response => response.json())
@@ -39,6 +41,18 @@ export class KhojChatModal extends Modal {
             });
     }
 
+    getViewType(): string {
+        return KHOJ_CHAT_VIEW;
+    }
+
+    getDisplayText(): string {
+        return "Khoj";
+    }
+
+    getIcon(): string {
+        return "message-circle";
+    }
+
     async chat() {
         // Get text in chat input element
         let input_el = <HTMLTextAreaElement>this.contentEl.getElementsByClassName("khoj-chat-input")[0];
@@ -503,7 +517,7 @@ export class KhojChatModal extends Modal {
         event.preventDefault();
         const transcribeButton = <HTMLButtonElement>this.contentEl.getElementsByClassName("khoj-transcribe")[0];
         const chatInput = <HTMLTextAreaElement>this.contentEl.getElementsByClassName("khoj-chat-input")[0];
-        const sendButton = <HTMLButtonElement>this.modalEl.getElementsByClassName("khoj-chat-send")[0]
+        const sendButton = <HTMLButtonElement>this.contentEl.getElementsByClassName("khoj-chat-send")[0]
 
         const generateRequestBody = async (audioBlob: Blob, boundary_string: string) => {
             const boundary = `------${boundary_string}`;
@@ -606,7 +620,7 @@ export class KhojChatModal extends Modal {
         clearTimeout(this.sendMessageTimeout);
 
         // Revert to showing send-button and hide the stop-send-button
-        let sendButton = <HTMLButtonElement>this.modalEl.getElementsByClassName("khoj-chat-send")[0];
+        let sendButton = <HTMLButtonElement>this.contentEl.getElementsByClassName("khoj-chat-send")[0];
         setIcon(sendButton, "arrow-up-circle");
         let sendImg = <SVGElement>sendButton.getElementsByClassName("lucide-arrow-up-circle")[0]
         sendImg.addEventListener('click', async (_) => { await this.chat() });
@@ -637,7 +651,7 @@ export class KhojChatModal extends Modal {
     }
 
     scrollChatToBottom() {
-        let sendButton = <HTMLButtonElement>this.modalEl.getElementsByClassName("khoj-chat-send")[0];
+        let sendButton = <HTMLButtonElement>this.contentEl.getElementsByClassName("khoj-chat-send")[0];
         sendButton.scrollIntoView({ behavior: "auto", block: "center" });
     }
 }

src/interface/obsidian/src/main.ts

@@ -1,7 +1,7 @@
-import { Plugin } from 'obsidian';
+import { Plugin, WorkspaceLeaf } from 'obsidian';
 import { KhojSetting, KhojSettingTab, DEFAULT_SETTINGS } from 'src/settings'
 import { KhojSearchModal } from 'src/search_modal'
-import { KhojChatModal } from 'src/chat_modal'
+import { KhojChatView, KHOJ_CHAT_VIEW } from 'src/chat_view'
 import { updateContentIndex, canConnectToBackend } from './utils';
 
 
@@ -30,12 +30,14 @@ export default class Khoj extends Plugin {
         this.addCommand({
             id: 'chat',
             name: 'Chat',
-            callback: () => { new KhojChatModal(this.app, this.settings).open(); }
+            callback: () => { this.activateView(KHOJ_CHAT_VIEW); }
         });
 
+        this.registerView(KHOJ_CHAT_VIEW, (leaf) => new KhojChatView(leaf, this.settings));
+
         // Create an icon in the left ribbon.
         this.addRibbonIcon('message-circle', 'Khoj', (_: MouseEvent) => {
-            new KhojChatModal(this.app, this.settings).open()
+            this.activateView(KHOJ_CHAT_VIEW);
         });
 
         // Add a settings tab so the user can configure khoj
@@ -69,4 +71,24 @@ export default class Khoj extends Plugin {
 
         this.unload();
     }
+
+    async activateView(viewType: string) {
+        const { workspace } = this.app;
+
+        let leaf: WorkspaceLeaf | null = null;
+        const leaves = workspace.getLeavesOfType(viewType);
+
+        if (leaves.length > 0) {
+          // A leaf with our view already exists, use that
+          leaf = leaves[0];
+        } else {
+          // Our view could not be found in the workspace, create a new leaf
+          // in the right sidebar for it
+          leaf = workspace.getRightLeaf(false);
+          await leaf.setViewState({ type: viewType, active: true });
+        }
+
+        // "Reveal" the leaf in case it is in a collapsed sidebar
+        workspace.revealLeaf(leaf);
+      }
 }