cef/include/capi/cef_life_span_handler_capi.h

178 lines
8.6 KiB
C

// Copyright (c) 2015 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.
//
#ifndef CEF_INCLUDE_CAPI_CEF_LIFE_SPAN_HANDLER_CAPI_H_
#define CEF_INCLUDE_CAPI_CEF_LIFE_SPAN_HANDLER_CAPI_H_
#pragma once
#include "include/capi/cef_base_capi.h"
#include "include/capi/cef_browser_capi.h"
#ifdef __cplusplus
extern "C" {
#endif
struct _cef_client_t;
///
// Implement this structure to handle events related to browser life span. The
// functions of this structure will be called on the UI thread unless otherwise
// indicated.
///
typedef struct _cef_life_span_handler_t {
///
// Base structure.
///
cef_base_t base;
///
// Called on the IO thread before a new popup browser is created. The
// |browser| and |frame| values represent the source of the popup request. The
// |target_url| and |target_frame_name| values indicate where the popup
// browser should navigate and may be NULL if not specified with the request.
// The |target_disposition| value indicates where the user intended to open
// the popup (e.g. current tab, new tab, etc). The |user_gesture| value will
// be true (1) if the popup was opened via explicit user gesture (e.g.
// clicking a link) or false (0) if the popup opened automatically (e.g. via
// the DomContentLoaded event). The |popupFeatures| structure contains
// additional information about the requested popup window. To allow creation
// of the popup browser optionally modify |windowInfo|, |client|, |settings|
// and |no_javascript_access| and return false (0). To cancel creation of the
// popup browser return true (1). The |client| and |settings| values will
// default to the source browser's values. If the |no_javascript_access| value
// is set to false (0) the new browser will not be scriptable and may not be
// hosted in the same renderer process as the source browser.
int (CEF_CALLBACK *on_before_popup)(struct _cef_life_span_handler_t* self,
struct _cef_browser_t* browser, struct _cef_frame_t* frame,
const cef_string_t* target_url, const cef_string_t* target_frame_name,
cef_window_open_disposition_t target_disposition, int user_gesture,
const struct _cef_popup_features_t* popupFeatures,
struct _cef_window_info_t* windowInfo, struct _cef_client_t** client,
struct _cef_browser_settings_t* settings, int* no_javascript_access);
///
// Called after a new browser is created.
///
void (CEF_CALLBACK *on_after_created)(struct _cef_life_span_handler_t* self,
struct _cef_browser_t* browser);
///
// Called when a modal window is about to display and the modal loop should
// begin running. Return false (0) to use the default modal loop
// implementation or true (1) to use a custom implementation.
///
int (CEF_CALLBACK *run_modal)(struct _cef_life_span_handler_t* self,
struct _cef_browser_t* browser);
///
// Called when a browser has recieved a request to close. This may result
// directly from a call to cef_browser_host_t::close_browser() or indirectly
// if the browser is a top-level OS window created by CEF and the user
// attempts to close the window. This function will be called after the
// JavaScript 'onunload' event has been fired. It will not be called for
// browsers after the associated OS window has been destroyed (for those
// browsers it is no longer possible to cancel the close).
//
// If CEF created an OS window for the browser returning false (0) will send
// an OS close notification to the browser window's top-level owner (e.g.
// WM_CLOSE on Windows, performClose: on OS-X and "delete_event" on Linux). If
// no OS window exists (window rendering disabled) returning false (0) will
// cause the browser object to be destroyed immediately. Return true (1) if
// the browser is parented to another window and that other window needs to
// receive close notification via some non-standard technique.
//
// If an application provides its own top-level window it should handle OS
// close notifications by calling cef_browser_host_t::CloseBrowser(false (0))
// instead of immediately closing (see the example below). This gives CEF an
// opportunity to process the 'onbeforeunload' event and optionally cancel the
// close before do_close() is called.
//
// The cef_life_span_handler_t::on_before_close() function will be called
// immediately before the browser object is destroyed. The application should
// only exit after on_before_close() has been called for all existing
// browsers.
//
// If the browser represents a modal window and a custom modal loop
// implementation was provided in cef_life_span_handler_t::run_modal() this
// callback should be used to restore the opener window to a usable state.
//
// By way of example consider what should happen during window close when the
// browser is parented to an application-provided top-level OS window. 1.
// User clicks the window close button which sends an OS close
// notification (e.g. WM_CLOSE on Windows, performClose: on OS-X and
// "delete_event" on Linux).
// 2. Application's top-level window receives the close notification and:
// A. Calls CefBrowserHost::CloseBrowser(false).
// B. Cancels the window close.
// 3. JavaScript 'onbeforeunload' handler executes and shows the close
// confirmation dialog (which can be overridden via
// CefJSDialogHandler::OnBeforeUnloadDialog()).
// 4. User approves the close. 5. JavaScript 'onunload' handler executes. 6.
// Application's do_close() handler is called. Application will:
// A. Set a flag to indicate that the next close attempt will be allowed.
// B. Return false.
// 7. CEF sends an OS close notification. 8. Application's top-level window
// receives the OS close notification and
// allows the window to close based on the flag from #6B.
// 9. Browser OS window is destroyed. 10. Application's
// cef_life_span_handler_t::on_before_close() handler is called and
// the browser object is destroyed.
// 11. Application exits by calling cef_quit_message_loop() if no other
// browsers
// exist.
///
int (CEF_CALLBACK *do_close)(struct _cef_life_span_handler_t* self,
struct _cef_browser_t* browser);
///
// Called just before a browser is destroyed. Release all references to the
// browser object and do not attempt to execute any functions on the browser
// object after this callback returns. If this is a modal window and a custom
// modal loop implementation was provided in run_modal() this callback should
// be used to exit the custom modal loop. See do_close() documentation for
// additional usage information.
///
void (CEF_CALLBACK *on_before_close)(struct _cef_life_span_handler_t* self,
struct _cef_browser_t* browser);
} cef_life_span_handler_t;
#ifdef __cplusplus
}
#endif
#endif // CEF_INCLUDE_CAPI_CEF_LIFE_SPAN_HANDLER_CAPI_H_