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Desktop: Add page-info API.

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This will be a core window intended to show information about the
page currently shown in the associated browser window.
This commit is contained in:
Michael Drake 2020-02-23 17:06:51 +00:00
parent 8da6252f50
commit 9198c9958a
1 changed files with 141 additions and 0 deletions
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/*
* Copyright 2020 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/>.
*/
/**
* \file
* Pave info viewer window interface
*/
#ifndef NETSURF_DESKTOP_PAGE_INFO_H
#define NETSURF_DESKTOP_PAGE_INFO_H
#include <stdint.h>
#include <stdbool.h>
#include "utils/errors.h"
#include "netsurf/mouse.h"
struct rect;
struct nsurl;
struct page_info;
struct core_window;
struct browser_window;
struct redraw_context;
struct core_window_callback_table;
/**
* Initialise the page_info module.
*
* \return NSERROR_OK on success, appropriate error code otherwise.
*/
nserror page_info_init(void);
/**
* Finalise the page_info module.
*
* \return NSERROR_OK on success, appropriate error code otherwise.
*/
nserror page_info_fini(void);
/**
* Create a page info corewindow.
*
* The page info window is opened for a particular browser window.
* It can be destroyed before the browser window is destroyed by calling
* \ref page_info_destroy.
*
* \param[in] cw_t Callback table for the containing core_window.
* \param[in] cw_h Handle for the containing core_window.
* \param[in] bw Browser window to show page info for.
* \param[out] pi_out The created page info window handle.
* \return NSERROR_OK on success, appropriate error code otherwise.
*/
nserror page_info_create(
const struct core_window_callback_table *cw_t,
struct core_window *cw_h,
const struct browser_window *bw,
struct page_info **pi_out);
/**
* Destroy a page info corewindow.
*
* \param[in] pi The page info window handle.
*/
void page_info_destroy(
struct page_info *pi);
/**
* Redraw the page info window.
*
* Causes the page info window to issue plot operations to redraw
* the specified area of the viewport.
*
* \param[in] pi The page info window handle.
* \param[in] x X coordinate to render page_info at.
* \param[in] y Y coordinate to render page_info at.
* \param[in] clip Current clip rectangle.
* \param[in] ctx Current redraw context.
* \return NSERROR_OK on success, appropriate error code otherwise.
*/
nserror page_info_redraw(
const struct page_info *pi,
int x,
int y,
const struct rect *clip,
const struct redraw_context *ctx);
/**
* Mouse action handling.
*
* \param[in] pi The page info window handle.
* \param[in] mouse The current mouse state
* \param[in] x The current mouse X coordinate
* \param[in] y The current mouse Y coordinate
* \return NSERROR_OK on success, appropriate error code otherwise.
*/
nserror page_info_mouse_action(
struct page_info *pi,
enum browser_mouse_state mouse,
int x,
int y);
/**
* Key press handling.
*
* \param[in] pi The page info window handle.
* \param[in] key The ucs4 character codepoint.
* \return true if the keypress is dealt with, false otherwise.
*/
bool page_info_keypress(
struct page_info *pi,
int32_t key);
/**
* Get size of page info content area.
*
* \param[in] pi The page info window handle.
* \param[out] width On success, return the page info content width.
* \param[out] height On success, return the page info content height.
* \return NSERROR_OK on success, appropriate error code otherwise.
*/
nserror page_info_get_size(
struct page_info *pi,
int *width,
int *height);
#endif