// Copyright (c) 2024 Marshall A. Greenblatt. 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See the translator.README.txt file in the tools directory for // more information. // // $hash=a2e5caf4dc0ed5b43a6075678e3b7b7ae83834ae$ // #ifndef CEF_INCLUDE_CAPI_VIEWS_CEF_WINDOW_DELEGATE_CAPI_H_ #define CEF_INCLUDE_CAPI_VIEWS_CEF_WINDOW_DELEGATE_CAPI_H_ #pragma once #include "include/capi/views/cef_panel_delegate_capi.h" #ifdef __cplusplus extern "C" { #endif struct _cef_window_t; /// /// Implement this structure to handle window events. The functions of this /// structure will be called on the browser process UI thread unless otherwise /// indicated. /// typedef struct _cef_window_delegate_t { /// /// Base structure. /// cef_panel_delegate_t base; /// /// Called when |window| is created. /// void(CEF_CALLBACK* on_window_created)(struct _cef_window_delegate_t* self, struct _cef_window_t* window); /// /// Called when |window| is closing. /// void(CEF_CALLBACK* on_window_closing)(struct _cef_window_delegate_t* self, struct _cef_window_t* window); /// /// Called when |window| is destroyed. Release all references to |window| and /// do not attempt to execute any functions on |window| after this callback /// returns. /// void(CEF_CALLBACK* on_window_destroyed)(struct _cef_window_delegate_t* self, struct _cef_window_t* window); /// /// Called when |window| is activated or deactivated. /// void(CEF_CALLBACK* on_window_activation_changed)( struct _cef_window_delegate_t* self, struct _cef_window_t* window, int active); /// /// Called when |window| bounds have changed. |new_bounds| will be in DIP /// screen coordinates. /// void(CEF_CALLBACK* on_window_bounds_changed)( struct _cef_window_delegate_t* self, struct _cef_window_t* window, const cef_rect_t* new_bounds); /// /// Called when |window| is transitioning to or from fullscreen mode. On MacOS /// the transition occurs asynchronously with |is_competed| set to false (0) /// when the transition starts and true (1) after the transition completes. On /// other platforms the transition occurs synchronously with |is_completed| /// set to true (1) after the transition completes. With Alloy style you must /// also implement cef_display_handler_t::OnFullscreenModeChange to handle /// fullscreen transitions initiated by browser content. /// void(CEF_CALLBACK* on_window_fullscreen_transition)( struct _cef_window_delegate_t* self, struct _cef_window_t* window, int is_completed); /// /// Return the parent for |window| or NULL if the |window| does not have a /// parent. Windows with parents will not get a taskbar button. Set |is_menu| /// to true (1) if |window| will be displayed as a menu, in which case it will /// not be clipped to the parent window bounds. Set |can_activate_menu| to /// false (0) if |is_menu| is true (1) and |window| should not be activated /// (given keyboard focus) when displayed. /// struct _cef_window_t*(CEF_CALLBACK* get_parent_window)( struct _cef_window_delegate_t* self, struct _cef_window_t* window, int* is_menu, int* can_activate_menu); /// /// Return true (1) if |window| should be created as a window modal dialog. /// Only called when a Window is returned via get_parent_window() with /// |is_menu| set to false (0). All controls in the parent Window will be /// disabled while |window| is visible. This functionality is not supported by /// all Linux window managers. Alternately, use /// cef_window_t::show_as_browser_modal_dialog() for a browser modal dialog /// that works on all platforms. /// int(CEF_CALLBACK* is_window_modal_dialog)(struct _cef_window_delegate_t* self, struct _cef_window_t* window); /// /// Return the initial bounds for |window| in density independent pixel (DIP) /// coordinates. If this function returns an NULL CefRect then /// get_preferred_size() will be called to retrieve the size, and the window /// will be placed on the screen with origin (0,0). This function can be used /// in combination with cef_view_t::get_bounds_in_screen() to restore the /// previous window bounds. /// cef_rect_t(CEF_CALLBACK* get_initial_bounds)( struct _cef_window_delegate_t* self, struct _cef_window_t* window); /// /// Return the initial show state for |window|. /// cef_show_state_t(CEF_CALLBACK* get_initial_show_state)( struct _cef_window_delegate_t* self, struct _cef_window_t* window); /// /// Return true (1) if |window| should be created without a frame or title /// bar. The window will be resizable if can_resize() returns true (1). Use /// cef_window_t::set_draggable_regions() to specify draggable regions. /// int(CEF_CALLBACK* is_frameless)(struct _cef_window_delegate_t* self, struct _cef_window_t* window); /// /// Return true (1) if |window| should be created with standard window buttons /// like close, minimize and zoom. This function is only supported on macOS. /// int(CEF_CALLBACK* with_standard_window_buttons)( struct _cef_window_delegate_t* self, struct _cef_window_t* window); /// /// Return whether the titlebar height should be overridden, and sets the /// height of the titlebar in |titlebar_height|. On macOS, it can also be used /// to adjust the vertical position of the traffic light buttons in frameless /// windows. The buttons will be positioned halfway down the titlebar at a /// height of |titlebar_height| / 2. /// int(CEF_CALLBACK* get_titlebar_height)(struct _cef_window_delegate_t* self, struct _cef_window_t* window, float* titlebar_height); /// /// Return whether the view should accept the initial mouse-down event, /// allowing it to respond to click-through behavior. If STATE_ENABLED is /// returned, the view will be sent a mouseDown: message for an initial mouse- /// down event, activating the view with one click, instead of clicking first /// to make the window active and then clicking the view. /// /// This function is only supported on macOS. For more details, refer to the /// documentation of acceptsFirstMouse. /// cef_state_t(CEF_CALLBACK* accepts_first_mouse)( struct _cef_window_delegate_t* self, struct _cef_window_t* window); /// /// Return true (1) if |window| can be resized. /// int(CEF_CALLBACK* can_resize)(struct _cef_window_delegate_t* self, struct _cef_window_t* window); /// /// Return true (1) if |window| can be maximized. /// int(CEF_CALLBACK* can_maximize)(struct _cef_window_delegate_t* self, struct _cef_window_t* window); /// /// Return true (1) if |window| can be minimized. /// int(CEF_CALLBACK* can_minimize)(struct _cef_window_delegate_t* self, struct _cef_window_t* window); /// /// Return true (1) if |window| can be closed. This will be called for user- /// initiated window close actions and when cef_window_t::close() is called. /// int(CEF_CALLBACK* can_close)(struct _cef_window_delegate_t* self, struct _cef_window_t* window); /// /// Called when a keyboard accelerator registered with /// cef_window_t::SetAccelerator is triggered. Return true (1) if the /// accelerator was handled or false (0) otherwise. /// int(CEF_CALLBACK* on_accelerator)(struct _cef_window_delegate_t* self, struct _cef_window_t* window, int command_id); /// /// Called after all other controls in the window have had a chance to handle /// the event. |event| contains information about the keyboard event. Return /// true (1) if the keyboard event was handled or false (0) otherwise. /// int(CEF_CALLBACK* on_key_event)(struct _cef_window_delegate_t* self, struct _cef_window_t* window, const cef_key_event_t* event); /// /// Called after the native/OS or Chrome theme for |window| has changed. /// |chrome_theme| will be true (1) if the notification is for a Chrome theme. /// /// Native/OS theme colors are configured globally and do not need to be /// customized for each Window individually. An example of a native/OS theme /// change that triggers this callback is when the user switches between dark /// and light mode during application lifespan. Native/OS theme changes can be /// disabled by passing the `--force-dark-mode` or `--force-light-mode` /// command-line flag. /// /// Chrome theme colors will be applied and this callback will be triggered /// if/when a BrowserView is added to the Window's component hierarchy. Chrome /// theme colors can be configured on a per-RequestContext basis using /// cef_request_context_t::SetChromeColorScheme or (Chrome style only) by /// visiting chrome://settings/manageProfile. Any theme changes using those /// mechanisms will also trigger this callback. Chrome theme colors will be /// persisted and restored from disk cache. /// /// This callback is not triggered on Window creation so clients that wish to /// customize the initial native/OS theme must call /// cef_window_t::SetThemeColor and cef_window_t::ThemeChanged before showing /// the first Window. /// /// Theme colors will be reset to standard values before this callback is /// called for the first affected Window. Call cef_window_t::SetThemeColor /// from inside this callback to override a standard color or add a custom /// color. cef_view_delegate_t::OnThemeChanged will be called after this /// callback for the complete |window| component hierarchy. /// void(CEF_CALLBACK* on_theme_colors_changed)( struct _cef_window_delegate_t* self, struct _cef_window_t* window, int chrome_theme); /// /// Optionally change the runtime style for this Window. See /// cef_runtime_style_t documentation for details. /// cef_runtime_style_t(CEF_CALLBACK* get_window_runtime_style)( struct _cef_window_delegate_t* self); } cef_window_delegate_t; #ifdef __cplusplus } #endif #endif // CEF_INCLUDE_CAPI_VIEWS_CEF_WINDOW_DELEGATE_CAPI_H_