Added Text Extractor integration

src/cache-manager.ts

@@ -1,5 +1,9 @@
 import { Notice } from 'obsidian'
-import type { DocumentRef, IndexedDocument } from './globals'
+import {
+  getTextExtractor,
+  type DocumentRef,
+  type IndexedDocument,
+} from './globals'
 import { database } from './database'
 import type { AsPlainObject } from 'minisearch'
 import type MiniSearch from 'minisearch'
@@ -18,15 +22,30 @@ import { getImageText, getPdfText } from 'obsidian-text-extract'
 async function getIndexedDocument(path: string): Promise<IndexedDocument> {
   const file = app.vault.getFiles().find(f => f.path === path)
   if (!file) throw new Error(`Invalid file path: "${path}"`)
-  let content: string
+  let content: string | null = null
+
+  const extractor = getTextExtractor()
   if (isFilePlaintext(path)) {
     content = await app.vault.cachedRead(file)
-  } else if (isFilePDF(path)) {
-    content = await getPdfText(file)
-  } else if (isFileImage(file.path)) {
-    content = await getImageText(file)
+  } else if (extractor) {
+    if (extractor.canFileBeExtracted(path)) {
+      content = await extractor.extractText(file)
+    } else {
+      throw new Error('Invalid file format: ' + file.path)
+    }
   } else {
-    throw new Error('Invalid file format: ' + file.path)
+    if (isFilePDF(path)) {
+      content = await getPdfText(file)
+    } else if (isFileImage(file.path)) {
+      content = await getImageText(file)
+    } else {
+      throw new Error('Invalid file format: ' + file.path)
+    }
+  }
+  if (content === null || content === undefined) {
+    // This shouldn't happen
+    console.warn(`Omnisearch: ${content} content for file`, file.path)
+    content = ''
   }
   content = removeDiacritics(content)
   const metadata = app.metadataCache.getFileCache(file)
@@ -81,8 +100,12 @@ class CacheManager {
   private documents: Map<string, IndexedDocument> = new Map()
 
   public async addToLiveCache(path: string): Promise<void> {
-    const doc = await getIndexedDocument(path)
-    this.documents.set(path, doc)
+    try {
+      const doc = await getIndexedDocument(path)
+      this.documents.set(path, doc)
+    } catch (e) {
+      console.warn('Omnisearch: Error while adding to live cache', e)
+    }
   }
 
   public removeFromLiveCache(path: string): void {

src/globals.ts

@@ -1,6 +1,7 @@
 import { EventBus } from './tools/event-bus'
 import { writable } from 'svelte/store'
 import { settings } from './settings'
+import type { TFile } from 'obsidian'
 
 export const regexLineSplit = /\r?\n|\r|((\.|\?|!)( |\r?\n|\r))/g
 export const regexYaml = /^---\s*\n(.*?)\n?^---\s?/ms
@@ -76,9 +77,33 @@ export function isInputComposition(): boolean {
   return inComposition
 }
 
+
+/**
+ * Plugin dependency - Chs Patch for Chinese word segmentation
+ * @returns 
+ */
 export function getChsSegmenter(): any | undefined {
   return (app as any).plugins.plugins['cm-chs-patch']
 }
 
+export type TextExtractorApi = {
+  extractText: (
+    file: TFile,
+    ocrOptions?: {
+      langs: string[]
+    }
+  ) => Promise<string>
+  getOcrLangs: () => string[]
+  canFileBeExtracted: (filePath: string) => boolean
+}
+
+/**
+ * Plugin dependency - Text Extractor
+ * @returns 
+ */
+export function getTextExtractor(): TextExtractorApi | undefined {
+  return (app as any).plugins?.plugins?.['text-extractor'].api
+}
+
 export const SPACE_OR_PUNCTUATION =
   /[|\n\r -#%-*,-/:;?@[-\]_{}\u00A0\u00A1\u00A7\u00AB\u00B6\u00B7\u00BB\u00BF\u037E\u0387\u055A-\u055F\u0589\u058A\u05BE\u05C0\u05C3\u05C6\u05F3\u05F4\u0609\u060A\u060C\u060D\u061B\u061E\u061F\u066A-\u066D\u06D4\u0700-\u070D\u07F7-\u07F9\u0830-\u083E\u085E\u0964\u0965\u0970\u09FD\u0A76\u0AF0\u0C77\u0C84\u0DF4\u0E4F\u0E5A\u0E5B\u0F04-\u0F12\u0F14\u0F3A-\u0F3D\u0F85\u0FD0-\u0FD4\u0FD9\u0FDA\u104A-\u104F\u10FB\u1360-\u1368\u1400\u166E\u1680\u169B\u169C\u16EB-\u16ED\u1735\u1736\u17D4-\u17D6\u17D8-\u17DA\u1800-\u180A\u1944\u1945\u1A1E\u1A1F\u1AA0-\u1AA6\u1AA8-\u1AAD\u1B5A-\u1B60\u1BFC-\u1BFF\u1C3B-\u1C3F\u1C7E\u1C7F\u1CC0-\u1CC7\u1CD3\u2000-\u200A\u2010-\u2029\u202F-\u2043\u2045-\u2051\u2053-\u205F\u207D\u207E\u208D\u208E\u2308-\u230B\u2329\u232A\u2768-\u2775\u27C5\u27C6\u27E6-\u27EF\u2983-\u2998\u29D8-\u29DB\u29FC\u29FD\u2CF9-\u2CFC\u2CFE\u2CFF\u2D70\u2E00-\u2E2E\u2E30-\u2E4F\u3000-\u3003\u3008-\u3011\u3014-\u301F\u3030\u303D\u30A0\u30FB\uA4FE\uA4FF\uA60D-\uA60F\uA673\uA67E\uA6F2-\uA6F7\uA874-\uA877\uA8CE\uA8CF\uA8F8-\uA8FA\uA8FC\uA92E\uA92F\uA95F\uA9C1-\uA9CD\uA9DE\uA9DF\uAA5C-\uAA5F\uAADE\uAADF\uAAF0\uAAF1\uABEB\uFD3E\uFD3F\uFE10-\uFE19\uFE30-\uFE52\uFE54-\uFE61\uFE63\uFE68\uFE6A\uFE6B\uFF01-\uFF03\uFF05-\uFF0A\uFF0C-\uFF0F\uFF1A\uFF1B\uFF1F\uFF20\uFF3B-\uFF3D\uFF3F\uFF5B\uFF5D\uFF5F-\uFF65]+/u