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netsurf/desktop/hotlist.h

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7.6 KiB

/*
* Copyright 2013 Michael Drake <tlsa@netsurf-browser.org>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* NetSurf is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _NETSURF_DESKTOP_HOTLIST_H_
#define _NETSURF_DESKTOP_HOTLIST_H_
#include <stdbool.h>
#include <stdint.h>
#include "utils/errors.h"
#include "netsurf/mouse.h"
struct redraw_context;
struct nsurl;
struct rect;
/**
* Initialise the hotlist.
*
* This opens the hotlist file, construct the hostlist, and creates a
* treeview. If there's no hotlist file, it generates a default hotlist.
*
* This must be called before any other hotlist_* function. It must
* be called before URLs can be added to the hotlist, and before the
* hotlist can be queried to ask if URLs are present in the hotlist.
*
* In read-only mode the hotlist can be modified, but changes will not
* persist over sessions.
*
* \param load_path The path to load hotlist from.
* \param save_path The path to save hotlist to, or NULL for read-only mode.
* \return NSERROR_OK on success, appropriate error otherwise
*/
nserror hotlist_init(const char *load_path, const char *save_path);
/**
* Initialise the hotlist manager.
*
* This connects the underlying hotlist treeview to a corewindow for display.
*
* The provided core window handle must be valid until hotlist_fini is called.
*
* \param core_window_handle The handle in which the hotlist is shown
* \return NSERROR_OK on success, appropriate error otherwise
*/
nserror hotlist_manager_init(void *core_window_handle);
/**
* Finalise the hotlist manager.
*
* This simply disconnects the underlying treeview from its corewindow,
* allowing destruction of a GUI hotlist window, without finalising the
* hotlist module.
*
* \return NSERROR_OK on success, appropriate error otherwise
*/
nserror hotlist_manager_fini(void);
/**
* Finalise the hotlist.
*
* This destroys the hotlist treeview and the hotlist module's
* internal data. After calling this if hotlist is required again,
* hotlist_init must be called.
*
* \return NSERROR_OK on success, appropriate error otherwise
*/
nserror hotlist_fini(void);
/**
* Add an entry to the hotlist for given URL.
*
* \param url URL for node being added
* \return NSERROR_OK on success, appropriate error otherwise
*/
nserror hotlist_add_url(struct nsurl *url);
/**
* Check whether given URL is present in hotlist
*
* \param url Address to look for in hotlist
* \return true iff url is present in hotlist, false otherwise
*/
bool hotlist_has_url(struct nsurl *url);
/**
* Remove any entries matching the given URL from the hotlist
*
* \param url Address to look for in hotlist
*/
void hotlist_remove_url(struct nsurl *url);
/**
* Update given URL, e.g. new visited data
*
* \param url Address to update entries for
*/
void hotlist_update_url(struct nsurl *url);
/**
* Add an entry to the hotlist for given Title/URL.
*
* \param url URL for entry to be added, or NULL
* \param title Title for entry being added (copied), or NULL
* \param at_y Iff true, insert at y-offest
* \param y Y-offset in px from top of hotlist. Ignored if (!at_y).
* \return NSERROR_OK on success, appropriate error otherwise
*/
nserror hotlist_add_entry(struct nsurl *url, const char *title, bool at_y, int y);
/**
* Add a folder to the hotlist.
*
* \param title Title for folder being added, or NULL
* \param at_y Iff true, insert at y-offest
* \param y Y-offset in px from top of hotlist. Ignored if (!at_y).
* \return NSERROR_OK on success, appropriate error otherwise
*/
nserror hotlist_add_folder(const char *title, bool at_y, int y);
/**
* Save hotlist to file
*
* \param path The path to save hotlist to
* \param title The title to give the hotlist, or NULL for default
* \return NSERROR_OK on success, or appropriate error otherwise
*/
nserror hotlist_export(const char *path, const char *title);
/**
* Client callback for hotlist_iterate, reporting entry into folder
*
* \param ctx Client context
* \param title The entered folder's title
* \return NSERROR_OK on success, or appropriate error otherwise
*/
typedef nserror (*hotlist_folder_enter_cb)(void *ctx, const char *title);
/**
* Client callback for hotlist_iterate, reporting a hotlist address
*
* \param ctx Client context
* \param url The entry's address
* \param title The entry's title
* \return NSERROR_OK on success, or appropriate error otherwise
*/
typedef nserror (*hotlist_address_cb)(void *ctx, struct nsurl *url, const char *title);
/**
* Client callback for hotlist_iterate, reporting a hotlist folder departure
*
* \param ctx Client context
* \param title The departed folder's title
* \return NSERROR_OK on success, or appropriate error otherwise
*/
typedef nserror (*hotlist_folder_leave_cb)(void *ctx);
/**
* Walk (depth first) the hotlist, calling callbacks on entering folders,
* address nodes, and on leaving folders.
*
* \param ctx Client context, passed back to callback function
* \param enter_cb Function to call on entering nodes, or NULL
* \param address_cb Function to call on address nodes, or NULL
* \param leave_cb Function to call on leaving nodes, or NULL
* \return NSERROR_OK on success, or appropriate error otherwise
*
* Example usage: Generate a menu containing hotlist entries. For flat list
* set enter_cb and leave_cb to NULL, or for hierarchical menu
* provide the folder callbacks.
*/
nserror hotlist_iterate(void *ctx,
hotlist_folder_enter_cb enter_cb,
hotlist_address_cb address_cb,
hotlist_folder_leave_cb leave_cb);
/**
* Redraw the hotlist.
*
* \param x X coordinate to render treeview at
* \param y Y coordinate to render treeview at
* \param clip Current clip rectangle (wrt tree origin)
* \param ctx Current redraw context
*/
void hotlist_redraw(int x, int y, struct rect *clip,
const struct redraw_context *ctx);
/**
* Handles all kinds of mouse action
*
* \param mouse The current mouse state
* \param x X coordinate
* \param y Y coordinate
*/
void hotlist_mouse_action(enum browser_mouse_state mouse, int x, int y);
/**
* Key press handling.
*
* \param key The ucs4 character codepoint
* \return true if the keypress is dealt with, false otherwise.
*/
bool hotlist_keypress(uint32_t key);
/**
* Determine whether there is a selection
*
* \return true iff there is a selection
*/
bool hotlist_has_selection(void);
/**
* Get the first selected node
*
* \param url Updated to the selected entry's address, or NULL
* \param title Updated to the selected entry's title, or NULL
* \return true iff hotlist has a selection
*/
bool hotlist_get_selection(struct nsurl **url, const char **title);
/**
* Edit the first selected node
*/
void hotlist_edit_selection(void);
/**
* Expand the treeview's nodes
*
* \param only_folders Iff true, only folders are expanded.
* \return NSERROR_OK on success, appropriate error otherwise
*/
nserror hotlist_expand(bool only_folders);
/**
* Contract the treeview's nodes
*
* \param all Iff false, only entries are contracted.
* \return NSERROR_OK on success, appropriate error otherwise
*/
nserror hotlist_contract(bool all);
#endif