ios/web/public/interstitials/web_interstitial_delegate.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef IOS_WEB_PUBLIC_INTERSTITIALS_WEB_INTERSTITIAL_DELEGATE_H_
   6 #define IOS_WEB_PUBLIC_INTERSTITIALS_WEB_INTERSTITIAL_DELEGATE_H_
   7
   8 #include <string>
   9
  10 namespace web {
  11
  12 // Controls and provides the html for an interstitial page. The delegate is
  13 // owned by the WebInterstitial.
  14 class WebInterstitialDelegate {
  15  public:
  16   virtual ~WebInterstitialDelegate() {}
  17
  18   // Returns the HTML that should be displayed in the page.
  19   virtual std::string GetHtmlContents() const = 0;
  20
  21   // Called when the interstitial is proceeded or cancelled. Note that this may
  22   // be called directly even if the embedder didn't call Proceed or DontProceed
  23   // on WebInterstitial, since navigations etc may cancel them.
  24   virtual void OnProceed() {}
  25   virtual void OnDontProceed() {}
  26
  27   // Invoked when a WebInterstitial receives a command via JavaScript.
  28   virtual void CommandReceived(const std::string& command) {}
  29 };
  30
  31 }  // namespace web
  32
  33 #endif  // IOS_WEB_PUBLIC_INTERSTITIALS_WEB_INTERSTITIAL_DELEGATE_H_