| // Copyright 2013 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_SEARCH_MOST_VISITED_IFRAME_SOURCE_H_ |
| #define CHROME_BROWSER_SEARCH_MOST_VISITED_IFRAME_SOURCE_H_ |
| |
| #include "base/macros.h" |
| #include "build/build_config.h" |
| #include "content/public/browser/url_data_source.h" |
| |
| #if defined(OS_ANDROID) |
| #error "Instant is only used on desktop"; |
| #endif |
| |
| // Serves HTML for displaying suggestions using iframes, e.g. |
| // chrome-search://most-visited/single.html |
| class MostVisitedIframeSource : public content::URLDataSource { |
| public: |
| MostVisitedIframeSource(); |
| ~MostVisitedIframeSource() override; |
| |
| // content::URLDataSource: |
| std::string GetSource() override; |
| void StartDataRequest( |
| const std::string& path_and_query, |
| const content::WebContents::Getter& wc_getter, |
| const content::URLDataSource::GotDataCallback& callback) override; |
| std::string GetMimeType(const std::string& path_and_query) override; |
| bool AllowCaching() override; |
| bool ShouldDenyXFrameOptions() override; |
| bool ShouldServiceRequest(const GURL& url, |
| content::ResourceContext* resource_context, |
| int render_process_id) override; |
| |
| protected: |
| // Returns whether this source should serve data for a particular path. |
| virtual bool ServesPath(const std::string& path) const; |
| |
| // Sends unmodified resource bytes. |
| void SendResource(int resource_id, |
| const content::URLDataSource::GotDataCallback& callback); |
| |
| // Sends Javascript with an expected postMessage origin interpolated. |
| void SendJSWithOrigin( |
| int resource_id, |
| const content::WebContents::Getter& wc_getter, |
| const content::URLDataSource::GotDataCallback& callback); |
| |
| // This is exposed for testing and should not be overridden. |
| // Sets |origin| to the URL of the WebContents identified by |wc_getter|. |
| // Returns true if successful and false if not, for example if the WebContents |
| // does not exist |
| virtual bool GetOrigin(const content::WebContents::Getter& wc_getter, |
| std::string* origin) const; |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(MostVisitedIframeSource); |
| }; |
| |
| #endif // CHROME_BROWSER_SEARCH_MOST_VISITED_IFRAME_SOURCE_H_ |