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Unified Diff: ios/shared/chrome/browser/tabs/web_state_opener.mm

Issue 2766413004: [ios] Change API to inform WebStateList of opener-opened relationship. (Closed)
Patch Set: Address comments. Created 3 years, 9 months ago
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Index: ios/shared/chrome/browser/tabs/web_state_opener.mm
diff --git a/ios/shared/chrome/browser/tabs/web_state_opener.mm b/ios/shared/chrome/browser/tabs/web_state_opener.mm
new file mode 100644
index 0000000000000000000000000000000000000000..eddc63637af4e4114e91af977b31e4852fc7958c
--- /dev/null
+++ b/ios/shared/chrome/browser/tabs/web_state_opener.mm
@@ -0,0 +1,29 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#import "ios/shared/chrome/browser/tabs/web_state_opener.h"
+
+#include "base/logging.h"
+#import "ios/web/public/navigation_manager.h"
+#import "ios/web/public/web_state/web_state.h"
+
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
+namespace {
+int NavigationIndexFromWebState(web::WebState* web_state) {
+ if (!web_state)
+ return -1;
+
+ DCHECK(web_state->GetNavigationManager());
+ return web_state->GetNavigationManager()->GetLastCommittedItemIndex();
+}
+} // namespace
+
+WebStateOpener::WebStateOpener(web::WebState* opener)
+ : WebStateOpener(opener, NavigationIndexFromWebState(opener)) {}
+
+WebStateOpener::WebStateOpener(web::WebState* opener, int navigation_index)
+ : opener(opener), navigation_index(navigation_index) {}
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