cef/include/capi/cef_web_plugin_capi.h

// Copyright (c) 2017 Marshall A. Greenblatt. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//    * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//    * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//    * Neither the name of Google Inc. nor the name Chromium Embedded
// Framework nor the names of its contributors may be used to endorse
// or promote products derived from this software without specific prior
// written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// ---------------------------------------------------------------------------
//
// This file was generated by the CEF translator tool and should not edited
// by hand. See the translator.README.txt file in the tools directory for
// more information.
//

#ifndef CEF_INCLUDE_CAPI_CEF_WEB_PLUGIN_CAPI_H_
#define CEF_INCLUDE_CAPI_CEF_WEB_PLUGIN_CAPI_H_
#pragma once

#include "include/capi/cef_base_capi.h"

#ifdef __cplusplus
extern "C" {
#endif

struct _cef_browser_t;

///
// Information about a specific web plugin.
///
typedef struct _cef_web_plugin_info_t {
  ///
  // Base structure.
  ///
  cef_base_ref_counted_t base;

  ///
  // Returns the plugin name (i.e. Flash).
  ///
  // The resulting string must be freed by calling cef_string_userfree_free().
  cef_string_userfree_t (CEF_CALLBACK *get_name)(
      struct _cef_web_plugin_info_t* self);

  ///
  // Returns the plugin file path (DLL/bundle/library).
  ///
  // The resulting string must be freed by calling cef_string_userfree_free().
  cef_string_userfree_t (CEF_CALLBACK *get_path)(
      struct _cef_web_plugin_info_t* self);

  ///
  // Returns the version of the plugin (may be OS-specific).
  ///
  // The resulting string must be freed by calling cef_string_userfree_free().
  cef_string_userfree_t (CEF_CALLBACK *get_version)(
      struct _cef_web_plugin_info_t* self);

  ///
  // Returns a description of the plugin from the version information.
  ///
  // The resulting string must be freed by calling cef_string_userfree_free().
  cef_string_userfree_t (CEF_CALLBACK *get_description)(
      struct _cef_web_plugin_info_t* self);
} cef_web_plugin_info_t;


///
// Structure to implement for visiting web plugin information. The functions of
// this structure will be called on the browser process UI thread.
///
typedef struct _cef_web_plugin_info_visitor_t {
  ///
  // Base structure.
  ///
  cef_base_ref_counted_t base;

  ///
  // Method that will be called once for each plugin. |count| is the 0-based
  // index for the current plugin. |total| is the total number of plugins.
  // Return false (0) to stop visiting plugins. This function may never be
  // called if no plugins are found.
  ///
  int (CEF_CALLBACK *visit)(struct _cef_web_plugin_info_visitor_t* self,
      struct _cef_web_plugin_info_t* info, int count, int total);
} cef_web_plugin_info_visitor_t;


///
// Structure to implement for receiving unstable plugin information. The
// functions of this structure will be called on the browser process IO thread.
///
typedef struct _cef_web_plugin_unstable_callback_t {
  ///
  // Base structure.
  ///
  cef_base_ref_counted_t base;

  ///
  // Method that will be called for the requested plugin. |unstable| will be
  // true (1) if the plugin has reached the crash count threshold of 3 times in
  // 120 seconds.
  ///
  void (CEF_CALLBACK *is_unstable)(
      struct _cef_web_plugin_unstable_callback_t* self,
      const cef_string_t* path, int unstable);
} cef_web_plugin_unstable_callback_t;


///
// Implement this structure to receive notification when CDM registration is
// complete. The functions of this structure will be called on the browser
// process UI thread.
///
typedef struct _cef_register_cdm_callback_t {
  ///
  // Base structure.
  ///
  cef_base_ref_counted_t base;

  ///
  // Method that will be called when CDM registration is complete. |result| will
  // be CEF_CDM_REGISTRATION_ERROR_NONE if registration completed successfully.
  // Otherwise, |result| and |error_message| will contain additional information
  // about why registration failed.
  ///
  void (CEF_CALLBACK *on_cdm_registration_complete)(
      struct _cef_register_cdm_callback_t* self,
      cef_cdm_registration_error_t result, const cef_string_t* error_message);
} cef_register_cdm_callback_t;


///
// Visit web plugin information. Can be called on any thread in the browser
// process.
///
CEF_EXPORT void cef_visit_web_plugin_info(
    cef_web_plugin_info_visitor_t* visitor);

///
// Cause the plugin list to refresh the next time it is accessed regardless of
// whether it has already been loaded. Can be called on any thread in the
// browser process.
///
CEF_EXPORT void cef_refresh_web_plugins();

///
// Unregister an internal plugin. This may be undone the next time
// cef_refresh_web_plugins() is called. Can be called on any thread in the
// browser process.
///
CEF_EXPORT void cef_unregister_internal_web_plugin(const cef_string_t* path);

///
// Register a plugin crash. Can be called on any thread in the browser process
// but will be executed on the IO thread.
///
CEF_EXPORT void cef_register_web_plugin_crash(const cef_string_t* path);

///
// Query if a plugin is unstable. Can be called on any thread in the browser
// process.
///
CEF_EXPORT void cef_is_web_plugin_unstable(const cef_string_t* path,
    cef_web_plugin_unstable_callback_t* callback);

///
// Register the Widevine CDM plugin.
//
// The client application is responsible for downloading an appropriate
// platform-specific CDM binary distribution from Google, extracting the
// contents, and building the required directory structure on the local machine.
// The cef_browser_host_t::StartDownload function and CefZipArchive structure
// can be used to implement this functionality in CEF. Contact Google via
// https://www.widevine.com/contact.html for details on CDM download.
//
// |path| is a directory that must contain the following files:
//   1. manifest.json file from the CDM binary distribution (see below).
//   2. widevinecdm file from the CDM binary distribution (e.g.
//      widevinecdm.dll on on Windows, libwidevinecdm.dylib on OS X,
//      libwidevinecdm.so on Linux).
//   3. widevidecdmadapter file from the CEF binary distribution (e.g.
//      widevinecdmadapter.dll on Windows, widevinecdmadapter.plugin on OS X,
//      libwidevinecdmadapter.so on Linux).
//
// If any of these files are missing or if the manifest file has incorrect
// contents the registration will fail and |callback| will receive a |result|
// value of CEF_CDM_REGISTRATION_ERROR_INCORRECT_CONTENTS.
//
// The manifest.json file must contain the following keys:
//   A. "os": Supported OS (e.g. "mac", "win" or "linux").
//   B. "arch": Supported architecture (e.g. "ia32" or "x64").
//   C. "x-cdm-module-versions": Module API version (e.g. "4").
//   D. "x-cdm-interface-versions": Interface API version (e.g. "8").
//   E. "x-cdm-host-versions": Host API version (e.g. "8").
//   F. "version": CDM version (e.g. "1.4.8.903").
//   G. "x-cdm-codecs": List of supported codecs (e.g. "vp8,vp9.0,avc1").
//
// A through E are used to verify compatibility with the current Chromium
// version. If the CDM is not compatible the registration will fail and
// |callback| will receive a |result| value of
// CEF_CDM_REGISTRATION_ERROR_INCOMPATIBLE.
//
// |callback| will be executed asynchronously once registration is complete.
//
// On Linux this function must be called before cef_initialize() and the
// registration cannot be changed during runtime. If registration is not
// supported at the time that cef_register_widevine_cdm() is called then
// |callback| will receive a |result| value of
// CEF_CDM_REGISTRATION_ERROR_NOT_SUPPORTED.
///
CEF_EXPORT void cef_register_widevine_cdm(const cef_string_t* path,
    cef_register_cdm_callback_t* callback);

#ifdef __cplusplus
}
#endif

#endif  // CEF_INCLUDE_CAPI_CEF_WEB_PLUGIN_CAPI_H_