mirror of
https://github.com/netsurf-browser/netsurf
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315 lines
9.8 KiB
C
315 lines
9.8 KiB
C
/*
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* Copyright 2005-2007 James Bursa <bursa@users.sourceforge.net>
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* Copyright 2003 Philip Pemberton <philpem@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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* Protected interface to Content handling.
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*
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* The content functions manipulate struct contents, which correspond to URLs.
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*/
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#ifndef _NETSURF_CONTENT_CONTENT_PROTECTED_H_
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#define _NETSURF_CONTENT_CONTENT_PROTECTED_H_
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#include <stdio.h>
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#include "utils/nsurl.h"
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#include "netsurf/content_type.h"
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#include "content/content.h"
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struct content_redraw_data;
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struct http_parameter;
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struct content_handler {
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void (*fini)(void);
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nserror (*create)(const struct content_handler *handler,
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lwc_string *imime_type,
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const struct http_parameter *params,
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struct llcache_handle *llcache,
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const char *fallback_charset, bool quirks,
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struct content **c);
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bool (*process_data)(struct content *c,
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const char *data, unsigned int size);
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bool (*data_complete)(struct content *c);
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void (*reformat)(struct content *c, int width, int height);
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void (*destroy)(struct content *c);
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void (*stop)(struct content *c);
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void (*mouse_track)(struct content *c, struct browser_window *bw,
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browser_mouse_state mouse, int x, int y);
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void (*mouse_action)(struct content *c, struct browser_window *bw,
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browser_mouse_state mouse, int x, int y);
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bool (*keypress)(struct content *c, uint32_t key);
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bool (*redraw)(struct content *c, struct content_redraw_data *data,
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const struct rect *clip,
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const struct redraw_context *ctx);
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nserror (*open)(struct content *c, struct browser_window *bw,
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struct content *page, struct object_params *params);
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nserror (*close)(struct content *c);
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void (*clear_selection)(struct content *c);
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char * (*get_selection)(struct content *c);
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nserror (*get_contextual_content)(struct content *c, int x, int y,
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struct browser_window_features *data);
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bool (*scroll_at_point)(struct content *c, int x, int y,
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int scrx, int scry);
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bool (*drop_file_at_point)(struct content *c, int x, int y,
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char *file);
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void (*search)(struct content *c, void *context, search_flags_t flags,
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const char *string);
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void (*search_clear)(struct content *c);
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nserror (*debug_dump)(struct content *c, FILE *f, enum content_debug op);
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nserror (*debug)(struct content *c, enum content_debug op);
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nserror (*clone)(const struct content *old, struct content **newc);
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bool (*matches_quirks)(const struct content *c, bool quirks);
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const char *(*get_encoding)(const struct content *c, enum content_encoding_type op);
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content_type (*type)(void);
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void (*add_user)(struct content *c);
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void (*remove_user)(struct content *c);
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bool (*exec)(struct content *c, const char *src, size_t srclen);
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/** handler dependant content sensitive internal data interface. */
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void * (*get_internal)(const struct content *c, void *context);
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/** There must be one content per user for this type. */
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bool no_share;
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};
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/** Linked list of users of a content. */
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struct content_user
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{
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void (*callback)(
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struct content *c,
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content_msg msg,
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const union content_msg_data *data,
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void *pw);
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void *pw;
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struct content_user *next;
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};
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/** Corresponds to a single URL. */
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struct content {
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struct llcache_handle *llcache; /**< Low-level cache object */
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lwc_string *mime_type; /**< Original MIME type of data */
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const struct content_handler *handler; /**< Handler for content */
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content_status status; /**< Current status. */
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int width, height; /**< Dimensions, if applicable. */
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int available_width; /**< Viewport width. */
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int available_height; /**< Viewport height. */
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bool quirks; /**< Content is in quirks mode */
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char *fallback_charset; /**< Fallback charset, or NULL */
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nsurl *refresh; /**< URL for refresh request */
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struct content_rfc5988_link *links; /**< list of metadata links */
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/** Creation timestamp when LOADING or READY.
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* Total time in ms when DONE.
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*/
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uint64_t time;
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uint64_t reformat_time; /**< Earliest time to attempt a period
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* reflow while fetching a page's objects.
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*/
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unsigned int size; /**< Estimated size of all data
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associated with this content */
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char *title; /**< Title for browser window. */
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unsigned int active; /**< Number of child fetches or
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conversions currently in progress. */
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struct content_user *user_list; /**< List of users. */
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char status_message[120]; /**< Full text for status bar. */
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char sub_status[80]; /**< Status of content. */
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/** Content is being processed: data structures may be inconsistent
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* and content must not be redrawn or modified. */
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bool locked;
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unsigned long total_size; /**< Total data size, 0 if unknown. */
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long http_code; /**< HTTP status code, 0 if not HTTP. */
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/** Array of first n rendering errors or warnings. */
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struct {
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const char *token;
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unsigned int line; /**< Line no, 0 if not applicable. */
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} error_list[40];
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unsigned int error_count; /**< Number of valid error entries. */
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};
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extern const char * const content_type_name[];
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extern const char * const content_status_name[];
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nserror content__init(struct content *c, const struct content_handler *handler,
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lwc_string *imime_type, const struct http_parameter *params,
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struct llcache_handle *llcache, const char *fallback_charset,
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bool quirks);
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nserror content__clone(const struct content *c, struct content *nc);
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void content_set_ready(struct content *c);
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void content_set_done(struct content *c);
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void content_set_error(struct content *c);
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void content_set_status(struct content *c, const char *status_message);
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void content_broadcast(struct content *c, content_msg msg,
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const union content_msg_data *data);
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/**
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* Send an errorcode message to all users.
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*/
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void content_broadcast_errorcode(struct content *c, nserror errorcode);
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void content_add_error(struct content *c, const char *token,
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unsigned int line);
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bool content__add_rfc5988_link(struct content *c,
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const struct content_rfc5988_link *link);
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struct content_rfc5988_link *content__free_rfc5988_link(
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struct content_rfc5988_link *link);
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void content__reformat(struct content *c, bool background,
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int width, int height);
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void content__request_redraw(struct content *c,
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int x, int y, int width, int height);
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/**
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* Retrieve mime-type of content
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*
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* \param c Content to retrieve mime-type of
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* \return Pointer to referenced mime-type, or NULL if not found.
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*/
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lwc_string *content__get_mime_type(struct content *c);
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/**
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* Set title associated with content
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*
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* \param c Content to set title on.
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* \param title The new title to set.
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* \return true on sucess else false.
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*/
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bool content__set_title(struct content *c, const char *title);
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/**
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* Retrieve title associated with content
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*
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* \param c Content to retrieve title from
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* \return Pointer to title, or NULL if not found.
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*/
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const char *content__get_title(struct content *c);
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/**
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* Retrieve status message associated with content
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*
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* \param c Content to retrieve status message from
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* \return Pointer to status message, or NULL if not found.
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*/
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const char *content__get_status_message(struct content *c);
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/**
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* Retrieve width of content
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*
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* \param c Content to retrieve width of
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* \return Content width
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*/
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int content__get_width(struct content *c);
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/**
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* Retrieve height of content
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*
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* \param c Content to retrieve height of
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* \return Content height
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*/
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int content__get_height(struct content *c);
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/**
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* Retrieve available width of content
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*
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* \param c content to get available width of.
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* \return Available width of content.
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*/
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int content__get_available_width(struct content *c);
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/**
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* Retrieve source of content.
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*
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* \param c Content to retrieve source of.
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* \param size Pointer to location to receive byte size of source.
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* \return Pointer to source data.
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*/
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const uint8_t *content__get_source_data(struct content *c, size_t *size);
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/**
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* Invalidate content reuse data.
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*
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* causes subsequent requests for content URL to query server to
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* determine if content can be reused. This is required behaviour for
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* forced reloads etc.
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*
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* \param c Content to invalidate.
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*/
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void content__invalidate_reuse_data(struct content *c);
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/**
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* Retrieve the refresh URL for a content
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*
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* \param c Content to retrieve refresh URL from
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* \return Pointer to URL or NULL if none
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*/
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nsurl *content__get_refresh_url(struct content *c);
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/**
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* Retrieve the bitmap contained in an image content
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*
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* \param c Content to retrieve opacity from
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* \return Pointer to bitmap or NULL if none.
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*/
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struct bitmap *content__get_bitmap(struct content *c);
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/**
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* Determine if a content is opaque
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*
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* \param c Content to retrieve opacity from
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* \return false if the content is not opaque or information is not
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* known else true.
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*/
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bool content__get_opaque(struct content *c);
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/**
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* Retrieve the encoding of a content
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*
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* \param c the content to examine the encoding of.
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* \param op encoding operation.
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* \return Pointer to content info or NULL if none.
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*/
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const char *content__get_encoding(struct content *c, enum content_encoding_type op);
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/**
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* Return whether a content is currently locked
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*
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* \param c Content to test
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* \return true iff locked, else false
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*/
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bool content__is_locked(struct content *c);
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#endif
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