cef/include/capi/views/cef_browser_view_delegate_capi.h

// Copyright (c) 2023 Marshall A. Greenblatt. All rights reserved.
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#ifndef CEF_INCLUDE_CAPI_VIEWS_CEF_BROWSER_VIEW_DELEGATE_CAPI_H_
#define CEF_INCLUDE_CAPI_VIEWS_CEF_BROWSER_VIEW_DELEGATE_CAPI_H_
#pragma once

#include "include/capi/cef_client_capi.h"
#include "include/capi/views/cef_view_delegate_capi.h"

#ifdef __cplusplus
extern "C" {
#endif

struct _cef_browser_t;
struct _cef_browser_view_t;

///
/// Implement this structure to handle BrowserView events. The functions of this
/// structure will be called on the browser process UI thread unless otherwise
/// indicated.
///
typedef struct _cef_browser_view_delegate_t {
  ///
  /// Base structure.
  ///
  cef_view_delegate_t base;

  ///
  /// Called when |browser| associated with |browser_view| is created. This
  /// function will be called after cef_life_span_handler_t::on_after_created()
  /// is called for |browser| and before on_popup_browser_view_created() is
  /// called for |browser|'s parent delegate if |browser| is a popup.
  ///
  void(CEF_CALLBACK* on_browser_created)(
      struct _cef_browser_view_delegate_t* self,
      struct _cef_browser_view_t* browser_view,
      struct _cef_browser_t* browser);

  ///
  /// Called when |browser| associated with |browser_view| is destroyed. Release
  /// all references to |browser| and do not attempt to execute any functions on
  /// |browser| after this callback returns. This function will be called before
  /// cef_life_span_handler_t::on_before_close() is called for |browser|.
  ///
  void(CEF_CALLBACK* on_browser_destroyed)(
      struct _cef_browser_view_delegate_t* self,
      struct _cef_browser_view_t* browser_view,
      struct _cef_browser_t* browser);

  ///
  /// Called before a new popup BrowserView is created. The popup originated
  /// from |browser_view|. |settings| and |client| are the values returned from
  /// cef_life_span_handler_t::on_before_popup(). |is_devtools| will be true (1)
  /// if the popup will be a DevTools browser. Return the delegate that will be
  /// used for the new popup BrowserView.
  ///
  struct _cef_browser_view_delegate_t*(
      CEF_CALLBACK* get_delegate_for_popup_browser_view)(
      struct _cef_browser_view_delegate_t* self,
      struct _cef_browser_view_t* browser_view,
      const struct _cef_browser_settings_t* settings,
      struct _cef_client_t* client,
      int is_devtools);

  ///
  /// Called after |popup_browser_view| is created. This function will be called
  /// after cef_life_span_handler_t::on_after_created() and on_browser_created()
  /// are called for the new popup browser. The popup originated from
  /// |browser_view|. |is_devtools| will be true (1) if the popup is a DevTools
  /// browser. Optionally add |popup_browser_view| to the views hierarchy
  /// yourself and return true (1). Otherwise return false (0) and a default
  /// cef_window_t will be created for the popup.
  ///
  int(CEF_CALLBACK* on_popup_browser_view_created)(
      struct _cef_browser_view_delegate_t* self,
      struct _cef_browser_view_t* browser_view,
      struct _cef_browser_view_t* popup_browser_view,
      int is_devtools);

  ///
  /// Returns the Chrome toolbar type that will be available via
  /// cef_browser_view_t::get_chrome_toolbar(). See that function for related
  /// documentation.
  ///
  cef_chrome_toolbar_type_t(CEF_CALLBACK* get_chrome_toolbar_type)(
      struct _cef_browser_view_delegate_t* self,
      struct _cef_browser_view_t* browser_view);

  ///
  /// Return true (1) to create frameless windows for Document picture-in-
  /// picture popups. Content in frameless windows should specify draggable
  /// regions using "-webkit-app-region: drag" CSS.
  ///
  int(CEF_CALLBACK* use_frameless_window_for_picture_in_picture)(
      struct _cef_browser_view_delegate_t* self,
      struct _cef_browser_view_t* browser_view);

  ///
  /// Called when |browser_view| receives a gesture command. Return true (1) to
  /// handle (or disable) a |gesture_command| or false (0) to propagate the
  /// gesture to the browser for default handling. With the Chrome runtime these
  /// commands can also be handled via cef_command_handler_t::OnChromeCommand.
  ///
  int(CEF_CALLBACK* on_gesture_command)(
      struct _cef_browser_view_delegate_t* self,
      struct _cef_browser_view_t* browser_view,
      cef_gesture_command_t gesture_command);
} cef_browser_view_delegate_t;

#ifdef __cplusplus
}
#endif

#endif  // CEF_INCLUDE_CAPI_VIEWS_CEF_BROWSER_VIEW_DELEGATE_CAPI_H_