cef/include/capi/cef_request_context_handler_capi.h

// Copyright (c) 2019 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
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// $hash=2bf745d270f474b3d5b36fc3fc2fca2b508ec16f$
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#ifndef CEF_INCLUDE_CAPI_CEF_REQUEST_CONTEXT_HANDLER_CAPI_H_
#define CEF_INCLUDE_CAPI_CEF_REQUEST_CONTEXT_HANDLER_CAPI_H_
#pragma once

#include "include/capi/cef_base_capi.h"
#include "include/capi/cef_web_plugin_capi.h"

#ifdef __cplusplus
extern "C" {
#endif

struct _cef_request_context_t;

///
// Implement this structure to provide handler implementations. The handler
// instance will not be released until all objects related to the context have
// been destroyed.
///
typedef struct _cef_request_context_handler_t {
  ///
  // Base structure.
  ///
  cef_base_ref_counted_t base;

  ///
  // Called on the browser process UI thread immediately after the request
  // context has been initialized.
  ///
  void(CEF_CALLBACK* on_request_context_initialized)(
      struct _cef_request_context_handler_t* self,
      struct _cef_request_context_t* request_context);

  ///
  // Called on multiple browser process threads before a plugin instance is
  // loaded. |mime_type| is the mime type of the plugin that will be loaded.
  // |plugin_url| is the content URL that the plugin will load and may be NULL.
  // |is_main_frame| will be true (1) if the plugin is being loaded in the main
  // (top-level) frame, |top_origin_url| is the URL for the top-level frame that
  // contains the plugin when loading a specific plugin instance or NULL when
  // building the initial list of enabled plugins for 'navigator.plugins'
  // JavaScript state. |plugin_info| includes additional information about the
  // plugin that will be loaded. |plugin_policy| is the recommended policy.
  // Modify |plugin_policy| and return true (1) to change the policy. Return
  // false (0) to use the recommended policy. The default plugin policy can be
  // set at runtime using the `--plugin-policy=[allow|detect|block]` command-
  // line flag. Decisions to mark a plugin as disabled by setting
  // |plugin_policy| to PLUGIN_POLICY_DISABLED may be cached when
  // |top_origin_url| is NULL. To purge the plugin list cache and potentially
  // trigger new calls to this function call
  // cef_request_tContext::PurgePluginListCache.
  ///
  int(CEF_CALLBACK* on_before_plugin_load)(
      struct _cef_request_context_handler_t* self,
      const cef_string_t* mime_type,
      const cef_string_t* plugin_url,
      int is_main_frame,
      const cef_string_t* top_origin_url,
      struct _cef_web_plugin_info_t* plugin_info,
      cef_plugin_policy_t* plugin_policy);
} cef_request_context_handler_t;

#ifdef __cplusplus
}
#endif

#endif  // CEF_INCLUDE_CAPI_CEF_REQUEST_CONTEXT_HANDLER_CAPI_H_