mirror of
https://github.com/netsurf-browser/netsurf
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653ccb78a9
This separates the local history data object API from the viewing API. It also changes the api to return nsurl references instead of strings.
168 lines
4.9 KiB
C
168 lines
4.9 KiB
C
/*
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* Copyright 2006 James Bursa <bursa@users.sourceforge.net>
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*
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* This file is part of NetSurf, http://www.netsurf-browser.org/
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*
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* NetSurf is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* NetSurf is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* \file
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* Interface to browser history operations
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*
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* The are operations on a browsing contexts history. These interfaces
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* allow navigation forward and backwards in the history as well as
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* enumerating the entries.
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*
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* The local history viewing is distinct via corewindow defined in
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* desktop/local_history.h
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*/
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#ifndef NETSURF_DESKTOP_BROWSER_HISTORY_H
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#define NETSURF_DESKTOP_BROWSER_HISTORY_H
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#include <stdbool.h>
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#include "utils/errors.h"
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struct browser_window;
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struct history_entry;
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/**
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* Go back in the history.
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*
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* \param bw A browser window to navigate the history in.
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* \param new_window whether to open in new window.
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* \return NSERROR_OK or error code on faliure.
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*/
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nserror browser_window_history_back(struct browser_window *bw, bool new_window);
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/**
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* Go forward in the history.
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*
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* \param bw A browser window to navigate the history in.
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* \param new_window whether to open in new window.
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* \return NSERROR_OK or error code on faliure.
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*/
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nserror browser_window_history_forward(struct browser_window *bw, bool new_window);
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/**
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* Check whether it is pssible to go back in the history.
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*
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* \param bw A browser window to check the history navigation in.
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* \return true if the history can go back, false otherwise
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*/
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bool browser_window_history_back_available(struct browser_window *bw);
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/**
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* Check whether it is pssible to go forwards in the history.
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*
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* \param bw A browser window to check the history navigation in.
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* \return true if the history can go forwards, false otherwise
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*/
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bool browser_window_history_forward_available(struct browser_window *bw);
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/**
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* Callback function type for history enumeration
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*
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* \param bw The browser window with history being enumerated
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* \param x0, y0, x1, y1 Coordinates of entry in history tree view
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* \param entry Current history entry
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* \return true to continue enumeration, false to cancel enumeration
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*/
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typedef bool (*browser_window_history_enumerate_cb)(
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const struct browser_window *bw,
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int x0, int y0, int x1, int y1,
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const struct history_entry *entry, void *user_data);
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/**
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* Enumerate all entries in the history.
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* Do not change the history while it is being enumerated.
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*
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* \param bw The browser window to enumerate history of
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* \param cb callback function
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* \param user_data context pointer passed to cb
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*/
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void browser_window_history_enumerate(const struct browser_window *bw,
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browser_window_history_enumerate_cb cb, void *user_data);
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/**
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* Enumerate all entries that will be reached by the 'forward' button
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*
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* \param bw The browser window to enumerate history of
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* \param cb The callback function
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* \param user_data Data passed to the callback
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*/
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void browser_window_history_enumerate_forward(const struct browser_window *bw,
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browser_window_history_enumerate_cb cb, void *user_data);
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/**
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* Enumerate all entries that will be reached by the 'back' button
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*
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* \param bw The browser window to enumerate history of
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* \param cb The callback function
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* \param user_data Data passed to the callback
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*/
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void browser_window_history_enumerate_back(const struct browser_window *bw,
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browser_window_history_enumerate_cb cb, void *user_data);
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/**
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* Returns the URL to a history entry
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*
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* \param entry the history entry to retrieve the URL from
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* \return A referenced nsurl URL
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*/
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struct nsurl *browser_window_history_entry_get_url(const struct history_entry *entry);
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/**
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* Returns the URL to a history entry
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*
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* \param entry the history entry to retrieve the fragment id from
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* \return the fragment id
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*/
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const char *browser_window_history_entry_get_fragment_id(
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const struct history_entry *entry);
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/**
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* Returns the title of a history entry
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*
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* \param entry the history entry to retrieve the title from
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* \return the title
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*/
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const char *browser_window_history_entry_get_title(
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const struct history_entry *entry);
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/**
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* Navigate to specified history entry, optionally in new window
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*
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* \param bw browser window
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* \param entry entry to open
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* \param new_window open entry in new window
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* \return NSERROR_OK or error code on faliure.
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*/
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nserror browser_window_history_go(struct browser_window *bw,
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struct history_entry *entry, bool new_window);
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#endif
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