From f4e60ae986bf9b6964e9ecf31252ceec12e83c21 Mon Sep 17 00:00:00 2001
From: Jonas Jenwald <jonas.jenwald@gmail.com>
Date: Tue, 19 Jul 2022 13:41:01 +0200
Subject: [PATCH] Limit even more SVG-specific code to the GENERIC viewer

Given that the SVG back-end is not defined anywhere except in GENERIC builds, we can remove a bit more unnecessary code in e.g. the Firefox PDF Viewer.
---
 web/base_viewer.js   | 14 +++++++++++---
 web/pdf_page_view.js |  8 ++++++--
 web/ui_utils.js      | 11 +++++++----
 3 files changed, 24 insertions(+), 9 deletions(-)

diff --git a/web/base_viewer.js b/web/base_viewer.js
index c3ae98a80..0ecb510ab 100644
--- a/web/base_viewer.js
+++ b/web/base_viewer.js
@@ -127,7 +127,6 @@ function isValidAnnotationEditorMode(mode) {
  *   mainly for annotation icons. Include trailing slash.
  * @property {boolean} [enablePrintAutoRotate] - Enables automatic rotation of
  *   landscape pages upon printing. The default is `false`.
- * @property {string} renderer - 'canvas' or 'svg'. The default is 'canvas'.
  * @property {boolean} [useOnlyCssZoom] - Enables CSS only zooming. The default
  *   value is `false`.
  * @property {number} [maxCanvasPixels] - The maximum supported canvas size in
@@ -285,7 +284,12 @@ class BaseViewer {
       options.annotationEditorMode ?? ANNOTATION_EDITOR_MODE;
     this.imageResourcesPath = options.imageResourcesPath || "";
     this.enablePrintAutoRotate = options.enablePrintAutoRotate || false;
-    this.renderer = options.renderer || RendererType.CANVAS;
+    if (
+      typeof PDFJSDev === "undefined" ||
+      PDFJSDev.test("!PRODUCTION || GENERIC")
+    ) {
+      this.renderer = options.renderer || RendererType.CANVAS;
+    }
     this.useOnlyCssZoom = options.useOnlyCssZoom || false;
     this.maxCanvasPixels = options.maxCanvasPixels;
     this.l10n = options.l10n || NullL10n;
@@ -778,7 +782,11 @@ class BaseViewer {
             textHighlighterFactory: this,
             structTreeLayerFactory: this,
             imageResourcesPath: this.imageResourcesPath,
-            renderer: this.renderer,
+            renderer:
+              typeof PDFJSDev === "undefined" ||
+              PDFJSDev.test("!PRODUCTION || GENERIC")
+                ? this.renderer
+                : null,
             useOnlyCssZoom: this.useOnlyCssZoom,
             maxCanvasPixels: this.maxCanvasPixels,
             pageColors: this.pageColors,
diff --git a/web/pdf_page_view.js b/web/pdf_page_view.js
index 82d0bbf9e..bc77234fc 100644
--- a/web/pdf_page_view.js
+++ b/web/pdf_page_view.js
@@ -80,7 +80,6 @@ import { NullL10n } from "./l10n_utils.js";
  * @property {Object} [textHighlighterFactory]
  * @property {string} [imageResourcesPath] - Path for image resources, mainly
  *   for annotation icons. Include trailing slash.
- * @property {string} renderer - 'canvas' or 'svg'. The default is 'canvas'.
  * @property {boolean} [useOnlyCssZoom] - Enables CSS only zooming. The default
  *   value is `false`.
  * @property {number} [maxCanvasPixels] - The maximum supported canvas size in
@@ -139,7 +138,12 @@ class PDFPageView {
         this.eventBus
       );
     this.structTreeLayerFactory = options.structTreeLayerFactory;
-    this.renderer = options.renderer || RendererType.CANVAS;
+    if (
+      typeof PDFJSDev === "undefined" ||
+      PDFJSDev.test("!PRODUCTION || GENERIC")
+    ) {
+      this.renderer = options.renderer || RendererType.CANVAS;
+    }
     this.l10n = options.l10n || NullL10n;
 
     this.paintTask = null;
diff --git a/web/ui_utils.js b/web/ui_utils.js
index 02dc8f24f..d9673a4dd 100644
--- a/web/ui_utils.js
+++ b/web/ui_utils.js
@@ -48,10 +48,13 @@ const SidebarView = {
   LAYERS: 4,
 };
 
-const RendererType = {
-  CANVAS: "canvas",
-  SVG: "svg",
-};
+const RendererType =
+  typeof PDFJSDev === "undefined" || PDFJSDev.test("!PRODUCTION || GENERIC")
+    ? {
+        CANVAS: "canvas",
+        SVG: "svg",
+      }
+    : null;
 
 const TextLayerMode = {
   DISABLE: 0,