fix(ios): mitigate media memory usage (#459)

jcesarmobile · web-flow · commit cbd526d318fc · 2019-10-30T16:30:13.000+01:00
diff --git a/src/ios/IONAssetHandler.m b/src/ios/IONAssetHandler.m
@@ -36,8 +36,14 @@ - (void)webView:(WKWebView *)webView startURLSchemeTask:(id <WKURLSchemeTask>)ur
             }
         }
     }
-
-    NSData * data = [[NSData alloc] initWithContentsOfFile:startPath];
+    NSError * fileError = nil;
+    NSData * data = nil;
+    if ([self isMediaExtension:url.pathExtension]) {
+        data = [NSData dataWithContentsOfFile:startPath options:NSDataReadingMappedIfSafe error:&fileError];
+    }
+    if (!data || fileError) {
+        data =  [[NSData alloc] initWithContentsOfFile:startPath];
+    }
     NSInteger statusCode = 200;
     if (!data) {
         statusCode = 404;

Original file line number	Diff line number	Diff line change
`@@ -36,8 +36,14 @@ - (void)webView:(WKWebView *)webView startURLSchemeTask:(id <WKURLSchemeTask>)ur`
`36`	`36`	`}`
`37`	`37`	`}`
`38`	`38`	`}`
`39`		`-`
`40`		`- NSData * data = [[NSData alloc] initWithContentsOfFile:startPath];`
	`39`	`+ NSError * fileError = nil;`
	`40`	`+ NSData * data = nil;`
	`41`	`+ if ([self isMediaExtension:url.pathExtension]) {`
	`42`	`+ data = [NSData dataWithContentsOfFile:startPath options:NSDataReadingMappedIfSafe error:&fileError];`
	`43`	`+ }`
	`44`	`+ if (!data \|\| fileError) {`
	`45`	`+ data = [[NSData alloc] initWithContentsOfFile:startPath];`
	`46`	`+ }`
`41`	`47`	`NSInteger statusCode = 200;`
`42`	`48`	`if (!data) {`
`43`	`49`	`statusCode = 404;`