From 5dc12f9a6de58ae0db4c24fb3dc8723ae12131e5 Mon Sep 17 00:00:00 2001
From: Jonas Jenwald <jonas.jenwald@gmail.com>
Date: Fri, 26 Oct 2018 20:53:42 +0200
Subject: [PATCH] Only normalize the search query once, in `PDFFindController,
 for every page being searched

For a short document, such as e.g. the `tracemonkey` file, this repeated normalization won't matter much, but for documents with a couple of thousand pages it seems completely unnecessary (and wasteful) to keep repeating the normalization whenever for every single page.
---
 web/pdf_find_controller.js | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/web/pdf_find_controller.js b/web/pdf_find_controller.js
index 1db2e32bd..a7b2eb0a6 100644
--- a/web/pdf_find_controller.js
+++ b/web/pdf_find_controller.js
@@ -172,6 +172,17 @@ class PDFFindController {
     this._firstPageCapability = createPromiseCapability();
   }
 
+  /**
+   * @return {string} The (current) normalized search query.
+   */
+  get _query() {
+    if (this._state.query !== this._rawQuery) {
+      this._rawQuery = this._state.query;
+      this._normalizedQuery = normalize(this._state.query);
+    }
+    return this._normalizedQuery;
+  }
+
   /**
    * Helper for multi-term search that fills the `matchesWithLength` array
    * and handles cases where one search term includes another search term (for
@@ -307,7 +318,7 @@ class PDFFindController {
 
   _calculateMatch(pageIndex) {
     let pageContent = this._pageContents[pageIndex];
-    let query = normalize(this._state.query);
+    let query = this._query;
     const { caseSensitive, entireWord, phraseSearch, } = this._state;
 
     if (query.length === 0) {
@@ -425,7 +436,7 @@ class PDFFindController {
     }
 
     // If there's no query there's no point in searching.
-    if (this._state.query === '') {
+    if (this._query === '') {
       this._updateUIState(FindState.FOUND);
       return;
     }