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// Copyright (c) 2024 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
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the name Chromium Embedded
// Framework nor the names of its contributors may be used to endorse
// or promote products derived from this software without specific prior
// written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// ---------------------------------------------------------------------------
//
// This file was generated by the CEF translator tool and should not edited
// by hand. See the translator.README.txt file in the tools directory for
// more information.
//
// $hash=fc6fbee765ce2b649f5293c8c4b076d36014e4aa$
//
#ifndef CEF_INCLUDE_CAPI_CEF_FRAME_HANDLER_CAPI_H_
#define CEF_INCLUDE_CAPI_CEF_FRAME_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"
#ifdef __cplusplus
extern "C" {
#endif
///
/// Implement this structure to handle events related to cef_frame_t life span.
/// The order of callbacks is:
///
/// (1) During initial cef_browser_host_t creation and navigation of the main
/// frame:
/// - cef_frame_handler_t::OnFrameCreated => The initial main frame object has
/// been created. Any commands will be queued until the frame is attached.
/// - cef_frame_handler_t::OnMainFrameChanged => The initial main frame object
/// has been assigned to the browser.
/// - cef_life_span_handler_t::OnAfterCreated => The browser is now valid and
/// can be used.
/// - cef_frame_handler_t::OnFrameAttached => The initial main frame object is
/// now connected to its peer in the renderer process. Commands can be routed.
///
/// (2) During further cef_browser_host_t navigation/loading of the main frame
/// and/or sub-frames:
/// - cef_frame_handler_t::OnFrameCreated => A new main frame or sub-frame
/// object has been created. Any commands will be queued until the frame is
/// attached.
/// - cef_frame_handler_t::OnFrameAttached => A new main frame or sub-frame
/// object is now connected to its peer in the renderer process. Commands can
/// be routed.
/// - cef_frame_handler_t::OnFrameDetached => An existing main frame or sub-
/// frame object has lost its connection to the renderer process. If multiple
/// objects are detached at the same time then notifications will be sent for
/// any sub-frame objects before the main frame object. Commands can no longer
/// be routed and will be discarded.
/// - cef_frame_handler_t::OnMainFrameChanged => A new main frame object has
/// been assigned to the browser. This will only occur with cross-origin
/// navigation or re-navigation after renderer process termination (due to
/// crashes, etc).
///
/// (3) During final cef_browser_host_t destruction of the main frame:
/// - cef_frame_handler_t::OnFrameDetached => Any sub-frame objects have lost
/// their connection to the renderer process. Commands can no longer be routed
/// and will be discarded.
/// - cef_life_span_handler_t::OnBeforeClose => The browser has been destroyed.
/// - cef_frame_handler_t::OnFrameDetached => The main frame object have lost
/// its connection to the renderer process. Notifications will be sent for any
/// sub-frame objects before the main frame object. Commands can no longer be
/// routed and will be discarded.
/// - cef_frame_handler_t::OnMainFrameChanged => The final main frame object has
/// been removed from the browser.
///
/// Cross-origin navigation and/or loading receives special handling.
///
/// When the main frame navigates to a different origin the OnMainFrameChanged
/// callback (2) will be executed with the old and new main frame objects.
///
/// When a new sub-frame is loaded in, or an existing sub-frame is navigated to,
/// a different origin from the parent frame, a temporary sub-frame object will
/// first be created in the parent's renderer process. That temporary sub-frame
/// will then be discarded after the real cross-origin sub-frame is created in
/// the new/target renderer process. The client will receive cross-origin
/// navigation callbacks (2) for the transition from the temporary sub-frame to
/// the real sub-frame. The temporary sub-frame will not receive or execute
/// commands during this transitional period (any sent commands will be
/// discarded).
///
/// When a new popup browser is created in a different origin from the parent
/// browser, a temporary main frame object for the popup will first be created
/// in the parent's renderer process. That temporary main frame will then be
/// discarded after the real cross-origin main frame is created in the
/// new/target renderer process. The client will receive creation and initial
/// navigation callbacks (1) for the temporary main frame, followed by cross-
/// origin navigation callbacks (2) for the transition from the temporary main
/// frame to the real main frame. The temporary main frame may receive and
/// execute commands during this transitional period (any sent commands may be
/// executed, but the behavior is potentially undesirable since they execute in
/// the parent browser's renderer process and not the new/target renderer
/// process).
///
/// Callbacks will not be executed for placeholders that may be created during
/// pre-commit navigation for sub-frames that do not yet exist in the renderer
/// process. Placeholders will have cef_frame_t::get_identifier() == -4.
///
/// The functions of this structure will be called on the UI thread unless
/// otherwise indicated.
///
typedef struct _cef_frame_handler_t {
///
/// Base structure.
///
cef_base_ref_counted_t base;
///
/// Called when a new frame is created. This will be the first notification
/// that references |frame|. Any commands that require transport to the
/// associated renderer process (LoadRequest, SendProcessMessage, GetSource,
/// etc.) will be queued until OnFrameAttached is called for |frame|.
///
void(CEF_CALLBACK* on_frame_created)(struct _cef_frame_handler_t* self,
struct _cef_browser_t* browser,
struct _cef_frame_t* frame);
///
/// Called when a frame can begin routing commands to/from the associated
/// renderer process. |reattached| will be true (1) if the frame was re-
/// attached after exiting the BackForwardCache. Any commands that were queued
/// have now been dispatched.
///
void(CEF_CALLBACK* on_frame_attached)(struct _cef_frame_handler_t* self,
struct _cef_browser_t* browser,
struct _cef_frame_t* frame,
int reattached);
///
/// Called when a frame loses its connection to the renderer process and will
/// be destroyed. Any pending or future commands will be discarded and
/// cef_frame_t::is_valid() will now return false (0) for |frame|. If called
/// after cef_life_span_handler_t::on_before_close() during browser
/// destruction then cef_browser_t::is_valid() will return false (0) for
/// |browser|.
///
void(CEF_CALLBACK* on_frame_detached)(struct _cef_frame_handler_t* self,
struct _cef_browser_t* browser,
struct _cef_frame_t* frame);
///
/// Called when the main frame changes due to (a) initial browser creation,
/// (b) final browser destruction, (c) cross-origin navigation or (d) re-
/// navigation after renderer process termination (due to crashes, etc).
/// |old_frame| will be NULL and |new_frame| will be non-NULL when a main
/// frame is assigned to |browser| for the first time. |old_frame| will be
/// non-NULL and |new_frame| will be NULL and when a main frame is removed
/// from |browser| for the last time. Both |old_frame| and |new_frame| will be
/// non-NULL for cross-origin navigations or re-navigation after renderer
/// process termination. This function will be called after on_frame_created()
/// for |new_frame| and/or after on_frame_detached() for |old_frame|. If
/// called after cef_life_span_handler_t::on_before_close() during browser
/// destruction then cef_browser_t::is_valid() will return false (0) for
/// |browser|.
///
void(CEF_CALLBACK* on_main_frame_changed)(struct _cef_frame_handler_t* self,
struct _cef_browser_t* browser,
struct _cef_frame_t* old_frame,
struct _cef_frame_t* new_frame);
} cef_frame_handler_t;
#ifdef __cplusplus
}
#endif
#endif // CEF_INCLUDE_CAPI_CEF_FRAME_HANDLER_CAPI_H_