ios/web/interstitials/html_web_interstitial_impl.h

// Copyright 2015 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 IOS_WEB_INTERSTITIALS_HTML_WEB_INTERSTITIAL_IMPL_H_
#define IOS_WEB_INTERSTITIALS_HTML_WEB_INTERSTITIAL_IMPL_H_

#import <WebKit/WebKit.h>

#include <memory>

#import "ios/web/interstitials/web_interstitial_impl.h"

namespace web {

class HtmlWebInterstitialDelegate;
class HtmlWebInterstitialImpl;

// A concrete subclass of WebInterstitialImpl that is used to display
// interstitials created via HTML.
class HtmlWebInterstitialImpl : public WebInterstitialImpl {
 public:
  HtmlWebInterstitialImpl(
      WebStateImpl* web_state,
      bool new_navigation,
      const GURL& url,
      std::unique_ptr<HtmlWebInterstitialDelegate> delegate);
  ~HtmlWebInterstitialImpl() override;

  // Called by |web_view_controller_delegate_| when |web_view_controller_|
  // receives a JavaScript command.
  void CommandReceivedFromWebView(NSString* command);

  // WebInterstitialImpl implementation:
  CRWContentView* GetContentView() const override;

 protected:
  // WebInterstitialImpl implementation:
  void PrepareForDisplay() override;
  WebInterstitialDelegate* GetDelegate() const override;
  void ExecuteJavaScript(NSString* script,
                         JavaScriptResultBlock completion_handler) override;

 private:
  // The HTML interstitial delegate.
  std::unique_ptr<HtmlWebInterstitialDelegate> delegate_;
  // The |web_view_|'s delegate.  Used to forward JavaScript commands
  // resulting from user interaction with the interstitial content.
  id<WKNavigationDelegate> web_view_delegate_;
  // The web view used to show the content. View needs to be resized by the
  // caller.
  WKWebView* web_view_;  // strong
  // The CRWContentView used to display |web_view_controller_|'s view.
  CRWContentView* content_view_;
};

}  // namespace web

#endif  // IOS_WEB_INTERSTITIALS_HTML_WEB_INTERSTITIAL_IMPL_H_