cef/include/capi/cef_request_context_handler_capi.h

// Copyright (c) 2021 Marshall A. Greenblatt. All rights reserved.
//
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// $hash=fa148db8a0ecd79966814086fb92e439687be701$
//

#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_browser_capi.h"
#include "include/capi/cef_frame_capi.h"
#include "include/capi/cef_request_capi.h"
#include "include/capi/cef_resource_request_handler_capi.h"
#include "include/capi/cef_web_plugin_capi.h"

#ifdef __cplusplus
extern "C" {
#endif

///
// 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_context_t::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);

  ///
  // Called on the browser process IO thread before a resource request is
  // initiated. The |browser| and |frame| values represent the source of the
  // request, and may be NULL for requests originating from service workers or
  // cef_urlrequest_t. |request| represents the request contents and cannot be
  // modified in this callback. |is_navigation| will be true (1) if the resource
  // request is a navigation. |is_download| will be true (1) if the resource
  // request is a download. |request_initiator| is the origin (scheme + domain)
  // of the page that initiated the request. Set |disable_default_handling| to
  // true (1) to disable default handling of the request, in which case it will
  // need to be handled via cef_resource_request_handler_t::GetResourceHandler
  // or it will be canceled. To allow the resource load to proceed with default
  // handling return NULL. To specify a handler for the resource return a
  // cef_resource_request_handler_t object. This function will not be called if
  // the client associated with |browser| returns a non-NULL value from
  // cef_request_handler_t::GetResourceRequestHandler for the same request
  // (identified by cef_request_t::GetIdentifier).
  ///
  struct _cef_resource_request_handler_t*(
      CEF_CALLBACK* get_resource_request_handler)(
      struct _cef_request_context_handler_t* self,
      struct _cef_browser_t* browser,
      struct _cef_frame_t* frame,
      struct _cef_request_t* request,
      int is_navigation,
      int is_download,
      const cef_string_t* request_initiator,
      int* disable_default_handling);
} cef_request_context_handler_t;

#ifdef __cplusplus
}
#endif

#endif  // CEF_INCLUDE_CAPI_CEF_REQUEST_CONTEXT_HANDLER_CAPI_H_