Bundle resources and skps directories into iOS app.

Will bundle resources/ for viewer (and skps/ if
that directory exists in the main Skia directory).
Also updates file code on iOS to fall back to bundle directory.

Docs-Preview: https://skia.org/?cl=76803
Bug: skia:7339
Change-Id: I244f67559c866451a6d02c3f1c4948d89457ec84
Reviewed-on: https://skia-review.googlesource.com/76803
Commit-Queue: Jim Van Verth <jvanverth@google.com>
Reviewed-by: Mike Klein <mtklein@chromium.org>

1 files changed, 41 insertions, 0 deletions

diff --git a/src/ports/SkOSFile_ios.h b/src/ports/SkOSFile_ios.h
new file mode 100644
index 0000000000..d74aa200cc
--- /dev/null
+++ b/src/ports/SkOSFile_ios.h
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2017 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "SkString.h"
+
+#ifdef SK_BUILD_FOR_IOS
+#import <CoreFoundation/CoreFoundation.h>
+
+static bool ios_get_path_in_bundle(const char path[], SkString* result) {
+    // Get a reference to the main bundle
+    CFBundleRef mainBundle = CFBundleGetMainBundle();
+
+    // Get a reference to the file's URL
+    CFStringRef pathRef = CFStringCreateWithCString(nullptr, path, kCFStringEncodingUTF8);
+    // We use "data" as our subdirectory to match {{bundle_resources_dir}}/data in GN
+    // Unfortunately "resources" is not a valid top-level name in iOS, so we push it one level down
+    CFURLRef imageURL = CFBundleCopyResourceURL(mainBundle, pathRef, nullptr, CFSTR("data"));
+    CFRelease(pathRef);
+    if (!imageURL) {
+        return false;
+    }
+    if (!result) {
+        return true;
+    }
+
+    // Convert the URL reference into a string reference
+    CFStringRef imagePath = CFURLCopyFileSystemPath(imageURL, kCFURLPOSIXPathStyle);
+    CFRelease(imageURL);
+
+    // Get the system encoding method
+    CFStringEncoding encodingMethod = CFStringGetSystemEncoding();
+
+    // Convert the string reference into an SkString
+    result->set(CFStringGetCStringPtr(imagePath, encodingMethod));
+    return true;
+}
+#endif