cef/include/capi/views/cef_overlay_controller_capi.h

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

#include "include/capi/cef_base_capi.h"

#ifdef __cplusplus
extern "C" {
#endif

struct _cef_view_t;
struct _cef_window_t;

///
/// Controller for an overlay that contains a contents View added via
/// cef_window_t::AddOverlayView. Methods exposed by this controller should be
/// called in preference to functions of the same name exposed by the contents
/// View unless otherwise indicated. Methods must be called on the browser
/// process UI thread unless otherwise indicated.
///
typedef struct _cef_overlay_controller_t {
  ///
  /// Base structure.
  ///
  cef_base_ref_counted_t base;

  ///
  /// Returns true (1) if this object is valid.
  ///
  int(CEF_CALLBACK* is_valid)(struct _cef_overlay_controller_t* self);

  ///
  /// Returns true (1) if this object is the same as |that| object.
  ///
  int(CEF_CALLBACK* is_same)(struct _cef_overlay_controller_t* self,
                             struct _cef_overlay_controller_t* that);

  ///
  /// Returns the contents View for this overlay.
  ///
  struct _cef_view_t*(CEF_CALLBACK* get_contents_view)(
      struct _cef_overlay_controller_t* self);

  ///
  /// Returns the top-level Window hosting this overlay. Use this function
  /// instead of calling get_window() on the contents View.
  ///
  struct _cef_window_t*(CEF_CALLBACK* get_window)(
      struct _cef_overlay_controller_t* self);

  ///
  /// Returns the docking mode for this overlay.
  ///
  cef_docking_mode_t(CEF_CALLBACK* get_docking_mode)(
      struct _cef_overlay_controller_t* self);

  ///
  /// Destroy this overlay.
  ///
  void(CEF_CALLBACK* destroy)(struct _cef_overlay_controller_t* self);

  ///
  /// Sets the bounds (size and position) of this overlay. This will set the
  /// bounds of the contents View to match and trigger a re-layout if necessary.
  /// |bounds| is in parent coordinates and any insets configured on this
  /// overlay will be ignored. Use this function only for overlays created with
  /// a docking mode value of CEF_DOCKING_MODE_CUSTOM. With other docking modes
  /// modify the insets of this overlay and/or layout of the contents View and
  /// call size_to_preferred_size() instead to calculate the new size and re-
  /// position the overlay if necessary.
  ///
  void(CEF_CALLBACK* set_bounds)(struct _cef_overlay_controller_t* self,
                                 const cef_rect_t* bounds);

  ///
  /// Returns the bounds (size and position) of this overlay in parent
  /// coordinates.
  ///
  cef_rect_t(CEF_CALLBACK* get_bounds)(struct _cef_overlay_controller_t* self);

  ///
  /// Returns the bounds (size and position) of this overlay in DIP screen
  /// coordinates.
  ///
  cef_rect_t(CEF_CALLBACK* get_bounds_in_screen)(
      struct _cef_overlay_controller_t* self);

  ///
  /// Sets the size of this overlay without changing the position. This will set
  /// the size of the contents View to match and trigger a re-layout if
  /// necessary. |size| is in parent coordinates and any insets configured on
  /// this overlay will be ignored. Use this function only for overlays created
  /// with a docking mode value of CEF_DOCKING_MODE_CUSTOM. With other docking
  /// modes modify the insets of this overlay and/or layout of the contents View
  /// and call size_to_preferred_size() instead to calculate the new size and
  /// re-position the overlay if necessary.
  ///
  void(CEF_CALLBACK* set_size)(struct _cef_overlay_controller_t* self,
                               const cef_size_t* size);

  ///
  /// Returns the size of this overlay in parent coordinates.
  ///
  cef_size_t(CEF_CALLBACK* get_size)(struct _cef_overlay_controller_t* self);

  ///
  /// Sets the position of this overlay without changing the size. |position| is
  /// in parent coordinates and any insets configured on this overlay will be
  /// ignored. Use this function only for overlays created with a docking mode
  /// value of CEF_DOCKING_MODE_CUSTOM. With other docking modes modify the
  /// insets of this overlay and/or layout of the contents View and call
  /// size_to_preferred_size() instead to calculate the new size and re-position
  /// the overlay if necessary.
  ///
  void(CEF_CALLBACK* set_position)(struct _cef_overlay_controller_t* self,
                                   const cef_point_t* position);

  ///
  /// Returns the position of this overlay in parent coordinates.
  ///
  cef_point_t(CEF_CALLBACK* get_position)(
      struct _cef_overlay_controller_t* self);

  ///
  /// Sets the insets for this overlay. |insets| is in parent coordinates. Use
  /// this function only for overlays created with a docking mode value other
  /// than CEF_DOCKING_MODE_CUSTOM.
  ///
  void(CEF_CALLBACK* set_insets)(struct _cef_overlay_controller_t* self,
                                 const cef_insets_t* insets);

  ///
  /// Returns the insets for this overlay in parent coordinates.
  ///
  cef_insets_t(CEF_CALLBACK* get_insets)(
      struct _cef_overlay_controller_t* self);

  ///
  /// Size this overlay to its preferred size and trigger a re-layout if
  /// necessary. The position of overlays created with a docking mode value of
  /// CEF_DOCKING_MODE_CUSTOM will not be modified by calling this function.
  /// With other docking modes this function may re-position the overlay if
  /// necessary to accommodate the new size and any insets configured on the
  /// contents View.
  ///
  void(CEF_CALLBACK* size_to_preferred_size)(
      struct _cef_overlay_controller_t* self);

  ///
  /// Sets whether this overlay is visible. Overlays are hidden by default. If
  /// this overlay is hidden then it and any child Views will not be drawn and,
  /// if any of those Views currently have focus, then focus will also be
  /// cleared. Painting is scheduled as needed.
  ///
  void(CEF_CALLBACK* set_visible)(struct _cef_overlay_controller_t* self,
                                  int visible);

  ///
  /// Returns whether this overlay is visible. A View may be visible but still
  /// not drawn in a Window if any parent Views are hidden. Call is_drawn() to
  /// determine whether this overlay and all parent Views are visible and will
  /// be drawn.
  ///
  int(CEF_CALLBACK* is_visible)(struct _cef_overlay_controller_t* self);

  ///
  /// Returns whether this overlay is visible and drawn in a Window. A View is
  /// drawn if it and all parent Views are visible. To determine if the
  /// containing Window is visible to the user on-screen call is_visible() on
  /// the Window.
  ///
  int(CEF_CALLBACK* is_drawn)(struct _cef_overlay_controller_t* self);
} cef_overlay_controller_t;

#ifdef __cplusplus
}
#endif

#endif  // CEF_INCLUDE_CAPI_VIEWS_CEF_OVERLAY_CONTROLLER_CAPI_H_