From 53a0ec8670d75fadae43301cdd11ecd60ace307a Mon Sep 17 00:00:00 2001
From: Simon Cambier <simon.cambier@protonmail.com>
Date: Tue, 31 May 2022 18:09:08 +0200
Subject: [PATCH] Fixed #51

---
 src/notes.ts   | 28 ++++++++++++++++++++++++++--
 src/types.d.ts |  8 +++++++-
 2 files changed, 33 insertions(+), 3 deletions(-)

diff --git a/src/notes.ts b/src/notes.ts
index a3e12c6..e37466d 100644
--- a/src/notes.ts
+++ b/src/notes.ts
@@ -1,4 +1,9 @@
-import { MarkdownView, TFile, type CachedMetadata } from 'obsidian'
+import {
+  MarkdownView,
+  TFile,
+  WorkspaceLeaf,
+  type CachedMetadata,
+} from 'obsidian'
 import type { IndexedNote, ResultNote } from './globals'
 import { stringsToRegex } from './utils'
 
@@ -32,7 +37,26 @@ export async function openNote(
   const reg = stringsToRegex(item.foundWords)
   reg.exec(item.content)
   const offset = reg.lastIndex
-  await app.workspace.openLinkText(item.path, '', newPane)
+
+  // Check if the note is already open
+  // const pane = MarkdownView.getPane(item.path)
+
+  // Check if the note is already open,
+  // to avoid opening it twice if the first one is pinned
+  let existing = false
+  app.workspace.iterateAllLeaves(leaf => {
+    if (leaf.view instanceof MarkdownView) {
+      if (leaf.getViewState().state?.file === item.path) {
+        app.workspace.setActiveLeaf(leaf, false, true)
+        existing = true
+      }
+    }
+  })
+
+  if (!existing) {
+    // Open a new note
+    await app.workspace.openLinkText(item.path, '', newPane)
+  }
 
   const view = app.workspace.getActiveViewOfType(MarkdownView)
   if (!view) {
diff --git a/src/types.d.ts b/src/types.d.ts
index cccea5a..ad8686a 100644
--- a/src/types.d.ts
+++ b/src/types.d.ts
@@ -1,4 +1,4 @@
-import { type MetadataCache } from 'obsidian'
+import type { MetadataCache, ViewState } from 'obsidian'
 
 declare module 'obsidian' {
   interface MetadataCache {
@@ -8,4 +8,10 @@ declare module 'obsidian' {
   interface FrontMatterCache {
     aliases?: string[] | string
   }
+
+  interface ViewState {
+    state?: {
+      file?: string
+    }
+  }
 }