Fix JavaScript usage before iOS 13.4 (#208)

Former-commit-id: a750af6

Author: mickael-menu

navigator/.github/workflows/lint.yml

@@ -17,12 +17,12 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v2
       - name: Install dependencies
-        run: npm install --prefix "$scripts"
+        run: make install
       - name: Lint JavaScript
         run: yarn --cwd "$scripts" run lint
       - name: Check JavaScript formatting
         run: yarn --cwd "$scripts" run checkformat
       - name: Check if bundled scripts are up-to-date
         run: |
             make scripts
-            git diff --exit-code --name-only r2-navigator-swift/EPUB/Assets/Static/scripts
+            git diff --exit-code --name-only r2-navigator-swift/EPUB/Assets/Static/scripts/*.js

navigator/Makefile

@@ -4,10 +4,14 @@ SCRIPTS_PATH := r2-navigator-swift/EPUB/Scripts
 help:
 	@echo "Usage: make <target>\n\n\
 	  carthage\tGenerate the Carthage Xcode project\n\
+	  install\tDownload NPM dependencies\n\
 	  scripts\tBundle EPUB scripts with Webpack\n\
 	  lint-scripts\tCheck quality of EPUB scripts\n\
 	"
 
+install:
+	yarn --cwd "$(SCRIPTS_PATH)" install
+
 scripts:
 	yarn --cwd "$(SCRIPTS_PATH)" run format
 	yarn --cwd "$(SCRIPTS_PATH)" run bundle

navigator/Package.swift

@@ -31,7 +31,10 @@ let package = Package(
                 .product(name: "R2Shared", package: "r2-shared-swift"),
             ],
             path: "./r2-navigator-swift/",
-            exclude: ["Info.plist"],
+            exclude: [
+                "Info.plist",
+                "EPUB/Scripts"
+            ],
             resources: [
                 .copy("EPUB/Assets"),
                 .process("Resources"),

navigator/R2Navigator.podspec

@@ -6,7 +6,7 @@ Pod::Spec.new do |s|
   s.summary       = "R2 Navigator"
   s.homepage      = "http://readium.github.io"
   s.author        = { "Readium" => "contact@readium.org" }
-  s.source        = { :git => "https://github.com/readium/r2-navigator-swift.git", :branch => "develop" }
+  s.source        = { :git => "https://github.com/readium/r2-navigator-swift.git", :branch => "fix/js-ios12" }
   s.exclude_files = ["**/Info*.plist"]
   s.requires_arc  = true
   s.resources     = ['r2-navigator-swift/Resources/**', 'r2-navigator-swift/EPUB/Assets']