Default share to Share Target: Partial impl. of Web Share for Desktop.

chrome/browser/webshare/share_service_impl.h

 // Copyright 2016 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.
 
 #ifndef CHROME_BROWSER_WEBSHARE_SHARE_SERVICE_IMPL_H_
 #define CHROME_BROWSER_WEBSHARE_SHARE_SERVICE_IMPL_H_
 
 #include <string>
 
+#include "base/gtest_prod_util.h"
 #include "mojo/public/cpp/bindings/interface_request.h"
 #include "third_party/WebKit/public/platform/modules/webshare/webshare.mojom.h"
 
 class GURL;
 
 // Desktop implementation of the ShareService Mojo service.
 class ShareServiceImpl : public blink::mojom::ShareService {
  public:
   ShareServiceImpl() = default;
   ~ShareServiceImpl() override = default;
 
   static void Create(mojo::InterfaceRequest<ShareService> request);
 
+  // blink::mojom::ShareService overrides:
   void Share(const std::string& title,
              const std::string& text,
-             const GURL& url,
+             const GURL& share_url,
              const ShareCallback& callback) override;
 
  private:
+  FRIEND_TEST_ALL_PREFIXES(ShareServiceImplUnittest, ReplacePlaceholders);
+
+  // Opens a new tab and navigates to |target_url|.
+  // Virtual for testing purposes.
+  virtual void OpenTargetURL(const GURL& target_url);
+
+  // Splits |url_template| on %{ and }, and stores in |split_template|.
+  // Ensures elements at even indices of |split_template| are the substrings
+  // between %{ and } in the |url_template|. Thus, if } was immediately followed
+  // by %{, an empty string is stored.
+  static bool SplitTemplate(const std::string& url_template,
+                            std::vector<base::StringPiece>& split_template);
+
+  // Writes to |url_template_filled|, a copy of |url_template| with all
+  // instances of "%{title}", "%{text}", and "%{url}" replaced with
+  // |title|, |text|, and |url| respectively.
+  // Replaces instances of "%{X}" where "X" is any string besides "title",
+  // "text", and "url", with an empty string, for forwards compatibility.
+  // Returns true, if there are badly nested placeholders.
+  // This includes any case in which two "%{" occur before a "}", or a "}"
+  // occurs with no preceding "%{".
+  static bool ReplacePlaceholders(const std::string& url_template,
+                                 const std::string& title,
+                                 const std::string& text,
+                                 const GURL& share_url,
+                                 std::string* url_template_filled);
+
   DISALLOW_COPY_AND_ASSIGN(ShareServiceImpl);
 };
 
 #endif  // CHROME_BROWSER_WEBSHARE_SHARE_SERVICE_IMPL_H_