third_party/WebKit/public/web/WebContentSettingsClient.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 WebContentSettingsClient_h
#define WebContentSettingsClient_h

#include "public/platform/WebContentSettingCallbacks.h"

namespace blink {

class WebSecurityOrigin;
class WebString;
class WebURL;

class WebContentSettingsClient {
 public:
  // Controls whether access to Web Databases is allowed for this frame.
  virtual bool allowDatabase(const WebString& name,
                             const WebString& displayName,
                             unsigned estimatedSize) {
    return true;
  }

  // Controls whether access to File System is allowed for this frame.
  virtual bool requestFileSystemAccessSync() { return true; }

  // Controls whether access to File System is allowed for this frame.
  virtual void requestFileSystemAccessAsync(
      const WebContentSettingCallbacks& callbacks) {
    WebContentSettingCallbacks permissionCallbacks(callbacks);
    permissionCallbacks.doAllow();
  }

  // Controls whether images are allowed for this frame.
  virtual bool allowImage(bool enabledPerSettings, const WebURL& imageURL) {
    return enabledPerSettings;
  }

  // Controls whether access to Indexed DB are allowed for this frame.
  virtual bool allowIndexedDB(const WebString& name, const WebSecurityOrigin&) {
    return true;
  }

  // Controls whether plugins are allowed for this frame.
  virtual bool allowPlugins(bool enabledPerSettings) {
    return enabledPerSettings;
  }

  // Controls whether scripts are allowed to execute for this frame.
  virtual bool allowScript(bool enabledPerSettings) {
    return enabledPerSettings;
  }

  // Controls whether scripts loaded from the given URL are allowed to execute
  // for this frame.
  virtual bool allowScriptFromSource(bool enabledPerSettings,
                                     const WebURL& scriptURL) {
    return enabledPerSettings;
  }

  // Controls whether insecure scripts are allowed to execute for this frame.
  virtual bool allowRunningInsecureContent(bool enabledPerSettings,
                                           const WebSecurityOrigin&,
                                           const WebURL&) {
    return enabledPerSettings;
  }

  // Controls whether the given script extension should run in a new script
  // context in this frame. If extensionGroup is 0, the script context is the
  // frame's main context. Otherwise, it is a context created by
  // WebLocalFrame::executeScriptInIsolatedWorld with that same extensionGroup
  // value.
  virtual bool allowScriptExtension(const WebString& extensionName,
                                    int extensionGroup) {
    return true;
  }

  virtual bool allowScriptExtension(const WebString& extensionName,
                                    int extensionGroup,
                                    int worldId) {
    return allowScriptExtension(extensionName, extensionGroup);
  }

  // Controls whether HTML5 Web Storage is allowed for this frame.
  // If local is true, then this is for local storage, otherwise it's for
  // session storage.
  virtual bool allowStorage(bool local) { return true; }

  // Controls whether access to read the clipboard is allowed for this frame.
  virtual bool allowReadFromClipboard(bool defaultValue) {
    return defaultValue;
  }

  // Controls whether access to write the clipboard is allowed for this frame.
  virtual bool allowWriteToClipboard(bool defaultValue) { return defaultValue; }

  // Controls whether enabling Web Components API for this frame.
  virtual bool allowWebComponents(bool defaultValue) { return defaultValue; }

  // Controls whether to enable MutationEvents for this frame.
  // The common use case of this method is actually to selectively disable
  // MutationEvents, but it's been named for consistency with the rest of the
  // interface.
  virtual bool allowMutationEvents(bool defaultValue) { return defaultValue; }

  // Controls whether autoplay is allowed for this frame.
  virtual bool allowAutoplay(bool defaultValue) { return defaultValue; }

  // Reports that passive mixed content was found at the provided URL.
  virtual void passiveInsecureContentFound(const WebURL&) {}

  // Notifies the client that the frame would have instantiated a plugin if
  // plugins were enabled.
  virtual void didNotAllowPlugins() {}

  // Notifies the client that the frame would have executed script if script
  // were enabled.
  virtual void didNotAllowScript() {}

  // Notifies the client that the frame instantiated a keygen element.
  virtual void didUseKeygen() {}

  virtual ~WebContentSettingsClient() {}
};

}  // namespace blink

#endif  // WebContentSettingsClient_h