2003-06-30 16:44:03 +04:00
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/*
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* This file is part of NetSurf, http://netsurf.sourceforge.net/
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* Licensed under the GNU General Public License,
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* http://www.opensource.org/licenses/gpl-license
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2005-08-21 16:04:18 +04:00
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* Copyright 2005 James Bursa <bursa@users.sourceforge.net>
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2004-02-20 03:43:17 +03:00
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*/
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/** \file
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* Content for text/html (implementation).
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2003-02-09 15:58:15 +03:00
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*/
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#include <assert.h>
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2004-07-06 00:19:52 +04:00
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#include <ctype.h>
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2005-08-21 16:04:18 +04:00
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#include <stdint.h>
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2003-02-09 15:58:15 +03:00
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#include <string.h>
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2003-04-06 01:38:06 +04:00
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#include <strings.h>
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2003-02-09 15:58:15 +03:00
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#include <stdlib.h>
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2004-03-08 21:21:21 +03:00
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#include "libxml/parserInternals.h"
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2004-01-05 05:10:59 +03:00
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#include "netsurf/utils/config.h"
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2003-06-17 23:24:21 +04:00
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#include "netsurf/content/content.h"
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2003-04-04 19:19:32 +04:00
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#include "netsurf/content/fetch.h"
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#include "netsurf/content/fetchcache.h"
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2006-01-25 09:52:38 +03:00
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#include "netsurf/desktop/browser.h"
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2003-02-09 15:58:15 +03:00
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#include "netsurf/desktop/gui.h"
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2004-07-31 03:40:01 +04:00
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#include "netsurf/desktop/options.h"
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2004-08-11 23:02:32 +04:00
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#include "netsurf/render/box.h"
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#include "netsurf/render/font.h"
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2003-02-09 15:58:15 +03:00
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#include "netsurf/render/html.h"
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2005-08-15 03:56:15 +04:00
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#include "netsurf/render/imagemap.h"
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2003-02-09 15:58:15 +03:00
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#include "netsurf/render/layout.h"
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#include "netsurf/utils/log.h"
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2004-03-02 21:02:41 +03:00
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#include "netsurf/utils/messages.h"
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2005-04-09 13:47:37 +04:00
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#include "netsurf/utils/talloc.h"
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2004-03-02 21:02:41 +03:00
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#include "netsurf/utils/url.h"
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#include "netsurf/utils/utils.h"
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2003-02-09 15:58:15 +03:00
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2004-02-20 03:43:17 +03:00
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#define CHUNK 4096
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2003-02-09 15:58:15 +03:00
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2005-01-02 01:05:21 +03:00
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static bool html_set_parser_encoding(struct content *c, const char *encoding);
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static const char *html_detect_encoding(const char *data, unsigned int size);
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2003-06-17 23:24:21 +04:00
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static void html_convert_css_callback(content_msg msg, struct content *css,
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2005-08-21 16:04:18 +04:00
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intptr_t p1, intptr_t p2, union content_msg_data data);
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2006-01-25 09:52:38 +03:00
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static bool html_meta_refresh(struct content *c, xmlNode *head);
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2005-01-02 01:05:21 +03:00
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static bool html_head(struct content *c, xmlNode *head);
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static bool html_find_stylesheets(struct content *c, xmlNode *head);
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2003-06-17 23:24:21 +04:00
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static void html_object_callback(content_msg msg, struct content *object,
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2005-08-21 16:04:18 +04:00
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intptr_t p1, intptr_t p2, union content_msg_data data);
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2004-06-09 23:55:06 +04:00
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static void html_object_done(struct box *box, struct content *object,
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2004-06-13 00:08:47 +04:00
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bool background);
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2005-04-14 01:58:28 +04:00
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static void html_object_failed(struct box *box, struct content *content,
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bool background);
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2004-01-24 20:08:16 +03:00
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static bool html_object_type_permitted(const content_type type,
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const content_type *permitted_types);
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2006-01-25 09:52:38 +03:00
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static void html_object_refresh(void *p);
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2005-10-31 00:23:03 +03:00
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static bool html_find_frame(struct content *c, const char *frame,
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struct content **page, unsigned int *i);
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2003-02-09 15:58:15 +03:00
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2004-02-20 03:43:17 +03:00
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/**
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* Create a CONTENT_HTML.
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*
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* The content_html_data structure is initialized and the HTML parser is
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* created.
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*/
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2004-06-11 00:41:26 +04:00
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bool html_create(struct content *c, const char *params[])
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2003-02-09 15:58:15 +03:00
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{
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2003-12-27 23:15:23 +03:00
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unsigned int i;
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2004-02-20 03:43:17 +03:00
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struct content_html_data *html = &c->data.html;
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2004-06-11 00:41:26 +04:00
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union content_msg_data msg_data;
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2004-02-20 03:43:17 +03:00
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2005-01-02 01:05:21 +03:00
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html->parser = 0;
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html->encoding_handler = 0;
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html->encoding = 0;
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2004-03-08 21:21:21 +03:00
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html->getenc = true;
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2005-04-09 13:47:37 +04:00
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html->base_url = c->url;
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2004-02-20 03:43:17 +03:00
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html->layout = 0;
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html->background_colour = TRANSPARENT;
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html->stylesheet_count = 0;
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html->stylesheet_content = 0;
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html->style = 0;
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2005-05-22 23:09:43 +04:00
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html->working_stylesheet = 0;
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2004-02-20 03:43:17 +03:00
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html->object_count = 0;
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html->object = 0;
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2005-04-09 13:47:37 +04:00
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html->forms = 0;
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2004-06-10 03:13:55 +04:00
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html->imagemaps = 0;
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2004-08-12 02:08:26 +04:00
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html->bw = 0;
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2005-10-31 00:23:03 +03:00
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html->page = 0;
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html->index = 0;
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html->box = 0;
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2004-06-11 00:41:26 +04:00
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2005-01-02 01:05:21 +03:00
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for (i = 0; params[i]; i += 2) {
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if (strcasecmp(params[i], "charset") == 0) {
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2005-04-09 13:47:37 +04:00
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html->encoding = talloc_strdup(c, params[i + 1]);
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2005-01-02 01:05:21 +03:00
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if (!html->encoding)
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goto no_memory;
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html->encoding_source = ENCODING_SOURCE_HEADER;
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html->getenc = false;
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break;
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}
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}
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html->parser = htmlCreatePushParserCtxt(0, 0, "", 0, 0,
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XML_CHAR_ENCODING_NONE);
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if (!html->parser)
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goto no_memory;
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if (html->encoding) {
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/* an encoding was specified in the Content-Type header */
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if (!html_set_parser_encoding(c, html->encoding))
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return false;
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2004-06-11 00:41:26 +04:00
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}
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return true;
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2005-01-02 01:05:21 +03:00
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no_memory:
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msg_data.error = messages_get("NoMemory");
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content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
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warn_user("NoMemory", 0);
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return false;
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2003-02-09 15:58:15 +03:00
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}
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2004-02-20 03:43:17 +03:00
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/**
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* Process data for CONTENT_HTML.
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*
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* The data is parsed in chunks of size CHUNK, multitasking in between.
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*/
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2003-02-09 15:58:15 +03:00
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2004-06-11 00:41:26 +04:00
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bool html_process_data(struct content *c, char *data, unsigned int size)
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2003-02-09 15:58:15 +03:00
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{
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unsigned long x;
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2004-04-17 20:00:16 +04:00
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2004-03-08 21:21:21 +03:00
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if (c->data.html.getenc) {
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2005-01-02 01:05:21 +03:00
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/* No encoding was specified in the Content-Type header.
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* Attempt to detect if the encoding is not 8-bit. If the
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* encoding is 8-bit, leave the parser unchanged, so that it
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* searches for a <meta http-equiv="content-type"
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* content="text/html; charset=...">. */
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const char *encoding;
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encoding = html_detect_encoding(data, size);
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if (encoding) {
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if (!html_set_parser_encoding(c, encoding))
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return false;
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2005-04-09 13:47:37 +04:00
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c->data.html.encoding = talloc_strdup(c, encoding);
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2005-01-02 01:05:21 +03:00
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if (!c->data.html.encoding)
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return false;
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c->data.html.encoding_source =
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ENCODING_SOURCE_DETECTED;
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2004-04-17 20:00:16 +04:00
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}
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2004-03-08 21:21:21 +03:00
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c->data.html.getenc = false;
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}
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2004-04-17 20:00:16 +04:00
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2003-02-26 21:22:24 +03:00
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for (x = 0; x + CHUNK <= size; x += CHUNK) {
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2003-02-09 15:58:15 +03:00
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htmlParseChunk(c->data.html.parser, data + x, CHUNK, 0);
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gui_multitask();
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}
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2003-03-04 14:59:36 +03:00
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htmlParseChunk(c->data.html.parser, data + x, (int) (size - x), 0);
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2004-06-11 00:41:26 +04:00
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return true;
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2003-02-09 15:58:15 +03:00
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}
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2005-01-02 01:05:21 +03:00
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/**
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* Set the HTML parser character encoding.
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*
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* \param c content of type CONTENT_HTML
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* \param encoding name of encoding
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* \return true on success, false on error and error reported
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*/
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bool html_set_parser_encoding(struct content *c, const char *encoding)
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{
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struct content_html_data *html = &c->data.html;
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xmlError *error;
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char error_message[500];
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union content_msg_data msg_data;
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html->encoding_handler = xmlFindCharEncodingHandler(encoding);
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if (!html->encoding_handler) {
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/* either out of memory, or no handler available */
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/* assume no handler available, which is not a fatal error */
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LOG(("no encoding handler for \"%s\"", encoding));
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/* \todo warn user and ask them to install iconv? */
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return true;
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}
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xmlCtxtResetLastError(html->parser);
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if (xmlSwitchToEncoding(html->parser, html->encoding_handler)) {
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error = xmlCtxtGetLastError(html->parser);
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snprintf(error_message, sizeof error_message,
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"%s xmlSwitchToEncoding(): %s",
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messages_get("MiscError"),
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error ? error->message : "failed");
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msg_data.error = error_message;
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content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
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return false;
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}
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return true;
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}
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/**
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* Attempt to detect the encoding of some HTML data.
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*
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* \param data HTML source data
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* \param size length of data
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* \return a constant string giving the encoding, or 0 if the encoding
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* appears to be some 8-bit encoding
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*/
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const char *html_detect_encoding(const char *data, unsigned int size)
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{
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/* this detection assumes that the first two characters are <= 0xff */
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if (size < 4)
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return 0;
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if (data[0] == 0xfe && data[1] == 0xff) /* BOM fe ff */
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return "UTF-16BE";
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else if (data[0] == 0xfe && data[1] == 0xff) /* BOM ff fe */
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return "UTF-16LE";
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else if (data[0] == 0x00 && data[1] != 0x00 &&
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data[2] == 0x00 && data[3] != 0x00) /* 00 xx 00 xx */
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return "UTF-16BE";
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else if (data[0] != 0x00 && data[1] == 0x00 &&
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data[2] != 0x00 && data[3] == 0x00) /* xx 00 xx 00 */
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return "UTF-16BE";
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else if (data[0] == 0x00 && data[1] == 0x00 &&
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data[2] == 0x00 && data[3] != 0x00) /* 00 00 00 xx */
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return "ISO-10646-UCS-4";
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else if (data[0] != 0x00 && data[1] == 0x00 &&
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data[2] == 0x00 && data[3] == 0x00) /* xx 00 00 00 */
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return "ISO-10646-UCS-4";
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return 0;
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}
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2004-02-20 03:43:17 +03:00
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/**
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* Convert a CONTENT_HTML for display.
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*
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* The following steps are carried out in order:
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*
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* - parsing to an XML tree is completed
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* - stylesheets are fetched
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* - the XML tree is converted to a box tree and object fetches are started
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* - the box tree is laid out
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*
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* On exit, the content status will be either CONTENT_STATUS_DONE if the
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* document is completely loaded or CONTENT_STATUS_READY if objects are still
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* being fetched.
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*/
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2004-06-11 00:41:26 +04:00
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bool html_convert(struct content *c, int width, int height)
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2003-02-09 15:58:15 +03:00
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{
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2003-04-11 01:44:45 +04:00
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xmlDoc *document;
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xmlNode *html, *head;
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2004-06-11 00:41:26 +04:00
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union content_msg_data msg_data;
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2003-02-09 15:58:15 +03:00
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2003-04-11 01:44:45 +04:00
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/* finish parsing */
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2003-02-09 15:58:15 +03:00
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htmlParseChunk(c->data.html.parser, "", 0, 1);
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2004-03-24 23:10:03 +03:00
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document = c->data.html.parser->myDoc;
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2003-02-09 15:58:15 +03:00
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/*xmlDebugDumpDocument(stderr, c->data.html.parser->myDoc);*/
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2003-04-11 01:44:45 +04:00
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htmlFreeParserCtxt(c->data.html.parser);
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2004-02-20 03:43:17 +03:00
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c->data.html.parser = 0;
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2004-06-11 00:41:26 +04:00
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if (!document) {
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2003-04-11 01:44:45 +04:00
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LOG(("Parsing failed"));
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2004-06-11 00:41:26 +04:00
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msg_data.error = messages_get("ParsingFail");
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content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
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return false;
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2003-02-09 15:58:15 +03:00
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}
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2005-01-02 01:05:21 +03:00
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if (!c->data.html.encoding && document->encoding) {
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/* The encoding was not in headers or detected, and the parser
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* found a <meta http-equiv="content-type"
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* content="text/html; charset=...">. */
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2005-04-09 13:47:37 +04:00
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c->data.html.encoding = talloc_strdup(c, document->encoding);
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2005-01-02 01:05:21 +03:00
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if (!c->data.html.encoding) {
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msg_data.error = messages_get("NoMemory");
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content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
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return false;
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}
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c->data.html.encoding_source = ENCODING_SOURCE_META;
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}
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2003-02-09 15:58:15 +03:00
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2003-04-11 01:44:45 +04:00
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/* locate html and head elements */
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for (html = document->children;
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html != 0 && html->type != XML_ELEMENT_NODE;
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html = html->next)
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;
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|
|
if (html == 0 || strcmp((const char *) html->name, "html") != 0) {
|
|
|
|
LOG(("html element not found"));
|
|
|
|
xmlFreeDoc(document);
|
2004-06-11 00:41:26 +04:00
|
|
|
msg_data.error = messages_get("ParsingFail");
|
|
|
|
content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
|
|
|
|
return false;
|
2003-02-09 15:58:15 +03:00
|
|
|
}
|
2003-04-11 01:44:45 +04:00
|
|
|
for (head = html->children;
|
|
|
|
head != 0 && head->type != XML_ELEMENT_NODE;
|
|
|
|
head = head->next)
|
|
|
|
;
|
2005-05-15 21:37:00 +04:00
|
|
|
if (head && strcmp((const char *) head->name, "head") != 0) {
|
2003-04-12 01:06:51 +04:00
|
|
|
head = 0;
|
2003-04-11 01:44:45 +04:00
|
|
|
LOG(("head element not found"));
|
2003-02-09 15:58:15 +03:00
|
|
|
}
|
2003-04-11 01:44:45 +04:00
|
|
|
|
2005-01-02 01:05:21 +03:00
|
|
|
if (head) {
|
|
|
|
if (!html_head(c, head)) {
|
|
|
|
msg_data.error = messages_get("NoMemory");
|
|
|
|
content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
|
|
|
|
return false;
|
|
|
|
}
|
2006-01-25 09:52:38 +03:00
|
|
|
|
|
|
|
/* handle meta refresh */
|
|
|
|
if (!html_meta_refresh(c, head))
|
|
|
|
return false;
|
2005-01-02 01:05:21 +03:00
|
|
|
}
|
2003-02-09 15:58:15 +03:00
|
|
|
|
2003-04-06 01:38:06 +04:00
|
|
|
/* get stylesheets */
|
2005-01-02 01:05:21 +03:00
|
|
|
if (!html_find_stylesheets(c, head)) {
|
|
|
|
msg_data.error = messages_get("NoMemory");
|
|
|
|
content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
|
|
|
|
return false;
|
|
|
|
}
|
2003-04-04 19:19:32 +04:00
|
|
|
|
2003-04-15 21:53:00 +04:00
|
|
|
/* convert xml tree to box tree */
|
2003-02-09 15:58:15 +03:00
|
|
|
LOG(("XML to box"));
|
2004-06-05 19:03:59 +04:00
|
|
|
content_set_status(c, messages_get("Processing"));
|
2004-06-11 00:41:26 +04:00
|
|
|
content_broadcast(c, CONTENT_MSG_STATUS, msg_data);
|
2004-12-14 01:17:43 +03:00
|
|
|
if (!xml_to_box(html, c)) {
|
|
|
|
msg_data.error = messages_get("NoMemory");
|
|
|
|
content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
|
|
|
|
return false;
|
|
|
|
}
|
2003-03-26 00:51:29 +03:00
|
|
|
/*box_dump(c->data.html.layout->children, 0);*/
|
2003-04-12 01:06:51 +04:00
|
|
|
|
2004-03-27 01:16:31 +03:00
|
|
|
/* extract image maps - can't do this sensibly in xml_to_box */
|
2004-12-08 03:33:25 +03:00
|
|
|
if (!imagemap_extract(html, c)) {
|
|
|
|
LOG(("imagemap extraction failed"));
|
|
|
|
msg_data.error = messages_get("NoMemory");
|
|
|
|
content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
|
|
|
|
return false;
|
|
|
|
}
|
2004-03-27 01:16:31 +03:00
|
|
|
/*imagemap_dump(c);*/
|
|
|
|
|
2004-02-17 15:41:38 +03:00
|
|
|
/* XML tree not required past this point */
|
2004-03-24 23:10:03 +03:00
|
|
|
xmlFreeDoc(document);
|
2003-02-09 15:58:15 +03:00
|
|
|
|
2003-04-15 21:53:00 +04:00
|
|
|
/* layout the box tree */
|
2004-06-05 19:03:59 +04:00
|
|
|
content_set_status(c, messages_get("Formatting"));
|
2004-06-11 00:41:26 +04:00
|
|
|
content_broadcast(c, CONTENT_MSG_STATUS, msg_data);
|
2003-02-09 15:58:15 +03:00
|
|
|
LOG(("Layout document"));
|
2005-07-02 22:17:51 +04:00
|
|
|
layout_document(c, width, height);
|
2003-03-26 00:51:29 +03:00
|
|
|
/*box_dump(c->data.html.layout->children, 0);*/
|
2004-10-18 01:10:19 +04:00
|
|
|
c->width = c->data.html.layout->descendant_x1;
|
|
|
|
c->height = c->data.html.layout->descendant_y1;
|
2003-04-15 21:53:00 +04:00
|
|
|
|
2005-04-09 13:47:37 +04:00
|
|
|
c->size = talloc_total_size(c);
|
|
|
|
|
2003-09-17 16:57:43 +04:00
|
|
|
if (c->active == 0) {
|
2003-06-17 23:24:21 +04:00
|
|
|
c->status = CONTENT_STATUS_DONE;
|
2004-06-05 19:03:59 +04:00
|
|
|
content_set_status(c, messages_get("Done"));
|
2003-09-17 16:57:43 +04:00
|
|
|
} else {
|
2003-06-17 23:24:21 +04:00
|
|
|
c->status = CONTENT_STATUS_READY;
|
2006-05-29 04:55:43 +04:00
|
|
|
content_set_status(c, messages_get("FetchObjs"), c->active,
|
|
|
|
messages_get((c->active == 1) ? "obj" : "objs"));
|
2003-09-17 16:57:43 +04:00
|
|
|
}
|
2003-06-05 17:17:55 +04:00
|
|
|
|
2004-06-11 00:41:26 +04:00
|
|
|
return true;
|
2003-02-09 15:58:15 +03:00
|
|
|
}
|
|
|
|
|
2006-01-25 09:52:38 +03:00
|
|
|
/**
|
|
|
|
* Search for meta refresh
|
|
|
|
*
|
2006-01-28 19:01:19 +03:00
|
|
|
* http://wp.netscape.com/assist/net_sites/pushpull.html
|
|
|
|
*
|
2006-01-25 09:52:38 +03:00
|
|
|
* \param c content structure
|
|
|
|
* \param head xml node of head element
|
|
|
|
* \return true on success, false otherwise (error reported)
|
|
|
|
*/
|
|
|
|
|
|
|
|
bool html_meta_refresh(struct content *c, xmlNode *head)
|
|
|
|
{
|
|
|
|
xmlNode *n;
|
|
|
|
xmlChar *equiv, *content;
|
|
|
|
union content_msg_data msg_data;
|
|
|
|
char *url, *end, *refresh;
|
|
|
|
url_func_result res;
|
|
|
|
|
|
|
|
for (n = head == 0 ? 0 : head->children; n; n = n->next) {
|
|
|
|
if (n->type != XML_ELEMENT_NODE)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
if (strcmp((const char *)n->name, "meta"))
|
|
|
|
continue;
|
|
|
|
|
|
|
|
equiv = xmlGetProp(n, (const xmlChar *)"http-equiv");
|
|
|
|
if (!equiv)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
if (strcasecmp((const char *)equiv, "refresh")) {
|
|
|
|
xmlFree(equiv);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
xmlFree(equiv);
|
|
|
|
|
|
|
|
content = xmlGetProp(n, (const xmlChar *)"content");
|
|
|
|
if (!content)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
end = (char *)content + strlen(content);
|
|
|
|
|
|
|
|
msg_data.delay = (int)strtol((char *) content, &url, 10);
|
|
|
|
|
2006-01-28 19:01:19 +03:00
|
|
|
if (url == end) {
|
|
|
|
/* Just delay specified, so refresh current page */
|
|
|
|
xmlFree(content);
|
|
|
|
|
|
|
|
c->refresh = talloc_strdup(c, c->url);
|
|
|
|
if (!c->refresh) {
|
|
|
|
msg_data.error = messages_get("NoMemory");
|
|
|
|
content_broadcast(c,
|
|
|
|
CONTENT_MSG_ERROR, msg_data);
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
content_broadcast(c, CONTENT_MSG_REFRESH, msg_data);
|
|
|
|
break;
|
|
|
|
}
|
2006-07-18 03:57:42 +04:00
|
|
|
|
2006-01-25 09:52:38 +03:00
|
|
|
for ( ; url <= end - 4; url++) {
|
|
|
|
if (!strncasecmp(url, "url=", 4))
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
2006-07-18 03:57:42 +04:00
|
|
|
/* mail.google.com sends out the broken format "<n>, url='<url>'", so
|
|
|
|
* special case this */
|
|
|
|
if (url <= end - 4) {
|
|
|
|
if ((url[4] == '\'') && (end[-1] == '\'')) {
|
|
|
|
*--end = '\0';
|
|
|
|
url++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2006-01-25 09:52:38 +03:00
|
|
|
if (url <= end - 4) {
|
|
|
|
res = url_join(url + 4, c->data.html.base_url,
|
|
|
|
&refresh);
|
|
|
|
|
|
|
|
xmlFree(content);
|
|
|
|
|
|
|
|
if (res == URL_FUNC_NOMEM) {
|
|
|
|
msg_data.error = messages_get("NoMemory");
|
|
|
|
content_broadcast(c,
|
|
|
|
CONTENT_MSG_ERROR, msg_data);
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
else if (res == URL_FUNC_FAILED) {
|
|
|
|
/* This isn't fatal so carry on looking */
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
c->refresh = talloc_strdup(c, refresh);
|
|
|
|
|
|
|
|
free(refresh);
|
|
|
|
|
|
|
|
if (!c->refresh) {
|
|
|
|
msg_data.error = messages_get("NoMemory");
|
|
|
|
content_broadcast(c,
|
|
|
|
CONTENT_MSG_ERROR, msg_data);
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
content_broadcast(c, CONTENT_MSG_REFRESH, msg_data);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
xmlFree(content);
|
|
|
|
}
|
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
2003-02-09 15:58:15 +03:00
|
|
|
|
2003-12-26 03:17:55 +03:00
|
|
|
/**
|
|
|
|
* Process elements in <head>.
|
2004-02-20 03:43:17 +03:00
|
|
|
*
|
|
|
|
* \param c content structure
|
|
|
|
* \param head xml node of head element
|
2005-01-02 01:05:21 +03:00
|
|
|
* \return true on success, false on memory exhaustion
|
2004-02-20 03:43:17 +03:00
|
|
|
*
|
|
|
|
* The title and base href are extracted if present.
|
2003-12-26 03:17:55 +03:00
|
|
|
*/
|
|
|
|
|
2005-01-02 01:05:21 +03:00
|
|
|
bool html_head(struct content *c, xmlNode *head)
|
2003-02-09 15:58:15 +03:00
|
|
|
{
|
2003-04-06 01:38:06 +04:00
|
|
|
xmlNode *node;
|
2003-02-09 15:58:15 +03:00
|
|
|
|
|
|
|
c->title = 0;
|
|
|
|
|
2003-04-06 01:38:06 +04:00
|
|
|
for (node = head->children; node != 0; node = node->next) {
|
2004-02-20 03:43:17 +03:00
|
|
|
if (node->type != XML_ELEMENT_NODE)
|
|
|
|
continue;
|
|
|
|
|
2003-12-26 03:17:55 +03:00
|
|
|
if (!c->title && strcmp(node->name, "title") == 0) {
|
|
|
|
xmlChar *title = xmlNodeGetContent(node);
|
2005-01-02 01:05:21 +03:00
|
|
|
if (!title)
|
|
|
|
return false;
|
2005-04-09 13:47:37 +04:00
|
|
|
char *title2 = squash_whitespace(title);
|
|
|
|
xmlFree(title);
|
|
|
|
if (!title2)
|
|
|
|
return false;
|
|
|
|
c->title = talloc_strdup(c, title2);
|
|
|
|
free(title2);
|
2005-01-02 01:05:21 +03:00
|
|
|
if (!c->title)
|
|
|
|
return false;
|
2003-12-26 03:17:55 +03:00
|
|
|
|
|
|
|
} else if (strcmp(node->name, "base") == 0) {
|
2005-04-09 13:47:37 +04:00
|
|
|
char *href = (char *) xmlGetProp(node,
|
|
|
|
(const xmlChar *) "href");
|
2003-12-26 03:17:55 +03:00
|
|
|
if (href) {
|
2004-08-09 20:11:58 +04:00
|
|
|
char *url;
|
|
|
|
url_func_result res;
|
|
|
|
res = url_normalize(href, &url);
|
|
|
|
if (res == URL_FUNC_OK) {
|
2005-04-09 13:47:37 +04:00
|
|
|
c->data.html.base_url =
|
|
|
|
talloc_strdup(c, url);
|
|
|
|
free(url);
|
2004-02-20 03:43:17 +03:00
|
|
|
}
|
2003-12-26 03:17:55 +03:00
|
|
|
xmlFree(href);
|
|
|
|
}
|
2003-04-06 01:38:06 +04:00
|
|
|
}
|
|
|
|
}
|
2005-01-02 01:05:21 +03:00
|
|
|
return true;
|
2003-04-06 01:38:06 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2004-02-20 03:43:17 +03:00
|
|
|
/**
|
|
|
|
* Process inline stylesheets and fetch linked stylesheets.
|
|
|
|
*
|
|
|
|
* \param c content structure
|
|
|
|
* \param head xml node of head element, or 0 if none
|
2005-01-02 01:05:21 +03:00
|
|
|
* \return true on success, false on memory exhaustion
|
2004-02-20 03:43:17 +03:00
|
|
|
*/
|
|
|
|
|
2005-01-02 01:05:21 +03:00
|
|
|
bool html_find_stylesheets(struct content *c, xmlNode *head)
|
2003-04-06 01:38:06 +04:00
|
|
|
{
|
2003-04-15 21:53:00 +04:00
|
|
|
xmlNode *node, *node2;
|
2003-04-13 16:50:10 +04:00
|
|
|
char *rel, *type, *media, *href, *data, *url;
|
2004-07-31 03:40:01 +04:00
|
|
|
unsigned int i = STYLESHEET_START;
|
2003-06-17 23:24:21 +04:00
|
|
|
unsigned int last_active = 0;
|
2004-04-25 03:42:32 +04:00
|
|
|
union content_msg_data msg_data;
|
2004-08-09 20:11:58 +04:00
|
|
|
url_func_result res;
|
2005-01-02 01:05:21 +03:00
|
|
|
struct content **stylesheet_content;
|
2003-04-13 16:50:10 +04:00
|
|
|
|
2004-07-31 03:40:01 +04:00
|
|
|
/* stylesheet 0 is the base style sheet,
|
|
|
|
* stylesheet 1 is the adblocking stylesheet,
|
|
|
|
* stylesheet 2 is any <style> elements */
|
2005-04-09 13:47:37 +04:00
|
|
|
c->data.html.stylesheet_content = talloc_array(c, struct content *,
|
|
|
|
STYLESHEET_START);
|
2005-01-02 01:05:21 +03:00
|
|
|
if (!c->data.html.stylesheet_content)
|
|
|
|
return false;
|
2004-07-31 03:40:01 +04:00
|
|
|
c->data.html.stylesheet_content[STYLESHEET_ADBLOCK] = 0;
|
|
|
|
c->data.html.stylesheet_content[STYLESHEET_STYLE] = 0;
|
|
|
|
c->data.html.stylesheet_count = STYLESHEET_START;
|
2003-04-06 01:38:06 +04:00
|
|
|
|
2003-04-15 21:53:00 +04:00
|
|
|
c->active = 0;
|
|
|
|
|
2004-07-31 03:40:01 +04:00
|
|
|
c->data.html.stylesheet_content[STYLESHEET_BASE] = fetchcache(
|
2004-10-18 02:13:35 +04:00
|
|
|
default_stylesheet_url,
|
2005-08-21 16:04:18 +04:00
|
|
|
html_convert_css_callback, (intptr_t) c,
|
|
|
|
STYLESHEET_BASE, c->width, c->height,
|
2005-01-03 05:09:20 +03:00
|
|
|
true, 0, 0, false, false);
|
2005-01-02 01:05:21 +03:00
|
|
|
if (!c->data.html.stylesheet_content[STYLESHEET_BASE])
|
|
|
|
return false;
|
2004-06-11 03:55:23 +04:00
|
|
|
c->active++;
|
2004-07-31 03:40:01 +04:00
|
|
|
fetchcache_go(c->data.html.stylesheet_content[STYLESHEET_BASE], 0,
|
2005-08-21 16:04:18 +04:00
|
|
|
html_convert_css_callback, (intptr_t) c,
|
|
|
|
STYLESHEET_BASE, c->width, c->height,
|
2005-01-25 02:02:37 +03:00
|
|
|
0, 0, false);
|
2004-07-31 03:40:01 +04:00
|
|
|
|
|
|
|
if (option_block_ads) {
|
2005-01-02 01:05:21 +03:00
|
|
|
c->data.html.stylesheet_content[STYLESHEET_ADBLOCK] =
|
|
|
|
fetchcache(adblock_stylesheet_url,
|
2005-08-21 16:04:18 +04:00
|
|
|
html_convert_css_callback, (intptr_t) c,
|
|
|
|
STYLESHEET_ADBLOCK, c->width,
|
2005-01-03 05:09:20 +03:00
|
|
|
c->height, true, 0, 0, false, false);
|
2005-01-02 01:05:21 +03:00
|
|
|
if (!c->data.html.stylesheet_content[STYLESHEET_ADBLOCK])
|
|
|
|
return false;
|
|
|
|
c->active++;
|
|
|
|
fetchcache_go(c->data.html.
|
|
|
|
stylesheet_content[STYLESHEET_ADBLOCK],
|
2005-08-21 16:04:18 +04:00
|
|
|
0, html_convert_css_callback, (intptr_t) c,
|
|
|
|
STYLESHEET_ADBLOCK, c->width,
|
2005-01-25 02:02:37 +03:00
|
|
|
c->height, 0, 0, false);
|
2004-07-31 03:40:01 +04:00
|
|
|
}
|
2003-04-06 01:38:06 +04:00
|
|
|
|
2005-01-02 01:05:21 +03:00
|
|
|
for (node = head == 0 ? 0 : head->children; node; node = node->next) {
|
2004-02-20 03:43:17 +03:00
|
|
|
if (node->type != XML_ELEMENT_NODE)
|
|
|
|
continue;
|
|
|
|
|
2003-04-06 01:38:06 +04:00
|
|
|
if (strcmp(node->name, "link") == 0) {
|
2006-06-30 01:29:21 +04:00
|
|
|
/* rel=<space separated list, including 'stylesheet'> */
|
2004-08-14 18:30:12 +04:00
|
|
|
if ((rel = (char *) xmlGetProp(node, (const xmlChar *) "rel")) == NULL)
|
2003-04-06 01:38:06 +04:00
|
|
|
continue;
|
2006-07-02 14:26:51 +04:00
|
|
|
if (strcasestr(rel, "stylesheet") == 0) {
|
2003-04-25 12:03:15 +04:00
|
|
|
xmlFree(rel);
|
2003-02-09 15:58:15 +03:00
|
|
|
continue;
|
2006-07-02 14:26:51 +04:00
|
|
|
} else if (strcasestr(rel, "alternate")) {
|
2006-06-30 03:29:15 +04:00
|
|
|
/* Ignore alternate stylesheets */
|
|
|
|
xmlFree(rel);
|
|
|
|
continue;
|
2003-02-09 15:58:15 +03:00
|
|
|
}
|
2003-04-25 12:03:15 +04:00
|
|
|
xmlFree(rel);
|
2003-04-06 01:38:06 +04:00
|
|
|
|
2003-04-12 01:06:51 +04:00
|
|
|
/* type='text/css' or not present */
|
2004-08-14 18:30:12 +04:00
|
|
|
if ((type = (char *) xmlGetProp(node, (const xmlChar *) "type")) != NULL) {
|
2003-04-12 01:06:51 +04:00
|
|
|
if (strcmp(type, "text/css") != 0) {
|
2003-04-25 12:03:15 +04:00
|
|
|
xmlFree(type);
|
2003-04-12 01:06:51 +04:00
|
|
|
continue;
|
|
|
|
}
|
2003-04-25 12:03:15 +04:00
|
|
|
xmlFree(type);
|
2003-02-09 15:58:15 +03:00
|
|
|
}
|
2003-04-06 01:38:06 +04:00
|
|
|
|
2003-04-12 01:06:51 +04:00
|
|
|
/* media contains 'screen' or 'all' or not present */
|
2004-08-14 18:30:12 +04:00
|
|
|
if ((media = (char *) xmlGetProp(node, (const xmlChar *) "media")) != NULL) {
|
2003-04-12 01:06:51 +04:00
|
|
|
if (strstr(media, "screen") == 0 &&
|
|
|
|
strstr(media, "all") == 0) {
|
2003-04-25 12:03:15 +04:00
|
|
|
xmlFree(media);
|
2003-04-06 01:38:06 +04:00
|
|
|
continue;
|
|
|
|
}
|
2003-04-25 12:03:15 +04:00
|
|
|
xmlFree(media);
|
2003-02-09 15:58:15 +03:00
|
|
|
}
|
2003-06-05 17:17:55 +04:00
|
|
|
|
2003-04-06 01:38:06 +04:00
|
|
|
/* href='...' */
|
2004-08-14 18:30:12 +04:00
|
|
|
if ((href = (char *) xmlGetProp(node, (const xmlChar *) "href")) == NULL)
|
2003-04-06 01:38:06 +04:00
|
|
|
continue;
|
|
|
|
|
2003-06-30 16:44:03 +04:00
|
|
|
/* TODO: only the first preferred stylesheets (ie. those with a
|
|
|
|
* title attribute) should be loaded (see HTML4 14.3) */
|
|
|
|
|
2004-08-09 20:11:58 +04:00
|
|
|
res = url_join(href, c->data.html.base_url, &url);
|
2003-04-25 12:03:15 +04:00
|
|
|
xmlFree(href);
|
2004-08-09 20:11:58 +04:00
|
|
|
if (res != URL_FUNC_OK)
|
2003-12-26 03:17:55 +03:00
|
|
|
continue;
|
|
|
|
|
|
|
|
LOG(("linked stylesheet %i '%s'", i, url));
|
2003-04-13 16:50:10 +04:00
|
|
|
|
|
|
|
/* start fetch */
|
2005-04-09 13:47:37 +04:00
|
|
|
stylesheet_content = talloc_realloc(c,
|
2005-01-02 01:05:21 +03:00
|
|
|
c->data.html.stylesheet_content,
|
2005-04-09 13:47:37 +04:00
|
|
|
struct content *, i + 1);
|
2005-01-02 01:05:21 +03:00
|
|
|
if (!stylesheet_content)
|
|
|
|
return false;
|
|
|
|
c->data.html.stylesheet_content = stylesheet_content;
|
2004-06-11 03:55:23 +04:00
|
|
|
c->data.html.stylesheet_content[i] = fetchcache(url,
|
|
|
|
html_convert_css_callback,
|
2005-08-21 16:04:18 +04:00
|
|
|
(intptr_t) c, i, c->width, c->height,
|
2005-01-03 05:09:20 +03:00
|
|
|
true, 0, 0, false, false);
|
2005-01-02 01:05:21 +03:00
|
|
|
if (!c->data.html.stylesheet_content[i])
|
|
|
|
return false;
|
|
|
|
c->active++;
|
|
|
|
fetchcache_go(c->data.html.stylesheet_content[i],
|
|
|
|
c->url,
|
|
|
|
html_convert_css_callback,
|
2005-08-21 16:04:18 +04:00
|
|
|
(intptr_t) c, i, c->width, c->height,
|
2005-01-02 01:05:21 +03:00
|
|
|
0, 0, false);
|
2003-04-13 16:50:10 +04:00
|
|
|
free(url);
|
|
|
|
i++;
|
|
|
|
|
|
|
|
} else if (strcmp(node->name, "style") == 0) {
|
2003-06-17 23:24:21 +04:00
|
|
|
/* type='text/css', or not present (invalid but common) */
|
2004-08-14 18:30:12 +04:00
|
|
|
if ((type = (char *) xmlGetProp(node, (const xmlChar *) "type")) != NULL) {
|
2003-06-17 23:24:21 +04:00
|
|
|
if (strcmp(type, "text/css") != 0) {
|
|
|
|
xmlFree(type);
|
|
|
|
continue;
|
|
|
|
}
|
2003-04-25 12:03:15 +04:00
|
|
|
xmlFree(type);
|
2003-04-13 16:50:10 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
/* media contains 'screen' or 'all' or not present */
|
2004-08-14 18:30:12 +04:00
|
|
|
if ((media = (char *) xmlGetProp(node, (const xmlChar *) "media")) != NULL) {
|
2003-04-13 16:50:10 +04:00
|
|
|
if (strstr(media, "screen") == 0 &&
|
|
|
|
strstr(media, "all") == 0) {
|
2003-04-25 12:03:15 +04:00
|
|
|
xmlFree(media);
|
2003-04-13 16:50:10 +04:00
|
|
|
continue;
|
|
|
|
}
|
2003-04-25 12:03:15 +04:00
|
|
|
xmlFree(media);
|
2003-04-13 16:50:10 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
/* create stylesheet */
|
|
|
|
LOG(("style element"));
|
2004-07-31 03:40:01 +04:00
|
|
|
if (c->data.html.stylesheet_content[STYLESHEET_STYLE] == 0) {
|
2003-12-27 23:15:23 +03:00
|
|
|
const char *params[] = { 0 };
|
2004-07-31 03:40:01 +04:00
|
|
|
c->data.html.stylesheet_content[STYLESHEET_STYLE] =
|
2004-06-11 03:55:23 +04:00
|
|
|
content_create(c->data.html.
|
|
|
|
base_url);
|
2004-07-31 03:40:01 +04:00
|
|
|
if (!c->data.html.stylesheet_content[STYLESHEET_STYLE])
|
2005-01-02 01:05:21 +03:00
|
|
|
return false;
|
2004-06-11 03:55:23 +04:00
|
|
|
if (!content_set_type(c->data.html.
|
2004-07-31 03:40:01 +04:00
|
|
|
stylesheet_content[STYLESHEET_STYLE],
|
2004-06-11 03:55:23 +04:00
|
|
|
CONTENT_CSS, "text/css",
|
|
|
|
params))
|
2005-01-02 01:05:21 +03:00
|
|
|
/** \todo not necessarily caused by
|
|
|
|
* memory exhaustion */
|
|
|
|
return false;
|
2003-06-17 23:24:21 +04:00
|
|
|
}
|
2003-04-15 21:53:00 +04:00
|
|
|
|
|
|
|
/* can't just use xmlNodeGetContent(node), because that won't give
|
|
|
|
* the content of comments which may be used to 'hide' the content */
|
|
|
|
for (node2 = node->children; node2 != 0; node2 = node2->next) {
|
|
|
|
data = xmlNodeGetContent(node2);
|
2004-06-11 03:55:23 +04:00
|
|
|
if (!content_process_data(c->data.html.
|
2004-07-31 03:40:01 +04:00
|
|
|
stylesheet_content[STYLESHEET_STYLE],
|
2004-06-11 03:55:23 +04:00
|
|
|
data, strlen(data))) {
|
|
|
|
xmlFree(data);
|
2005-01-02 01:05:21 +03:00
|
|
|
/** \todo not necessarily caused by
|
|
|
|
* memory exhaustion */
|
|
|
|
return false;
|
2004-06-11 03:55:23 +04:00
|
|
|
}
|
2003-04-25 12:03:15 +04:00
|
|
|
xmlFree(data);
|
2003-04-15 21:53:00 +04:00
|
|
|
}
|
2003-02-09 15:58:15 +03:00
|
|
|
}
|
|
|
|
}
|
2003-04-06 01:38:06 +04:00
|
|
|
|
2003-04-13 16:50:10 +04:00
|
|
|
c->data.html.stylesheet_count = i;
|
|
|
|
|
2004-07-31 03:40:01 +04:00
|
|
|
if (c->data.html.stylesheet_content[STYLESHEET_STYLE] != 0) {
|
|
|
|
if (css_convert(c->data.html.stylesheet_content[STYLESHEET_STYLE], c->width,
|
2003-10-17 21:39:29 +04:00
|
|
|
c->height)) {
|
2005-01-02 06:58:21 +03:00
|
|
|
if (!content_add_user(c->data.html.stylesheet_content[STYLESHEET_STYLE],
|
2004-06-11 03:55:23 +04:00
|
|
|
html_convert_css_callback,
|
2005-08-21 16:04:18 +04:00
|
|
|
(intptr_t) c, STYLESHEET_STYLE)) {
|
2005-01-02 06:58:21 +03:00
|
|
|
/* no memory */
|
|
|
|
c->data.html.stylesheet_content[STYLESHEET_STYLE] = 0;
|
|
|
|
return false;
|
|
|
|
}
|
2004-06-11 03:55:23 +04:00
|
|
|
} else {
|
2003-10-17 21:39:29 +04:00
|
|
|
/* conversion failed */
|
2004-07-31 03:40:01 +04:00
|
|
|
c->data.html.stylesheet_content[STYLESHEET_STYLE] = 0;
|
2003-10-17 21:39:29 +04:00
|
|
|
}
|
|
|
|
}
|
2003-04-15 21:53:00 +04:00
|
|
|
|
|
|
|
/* complete the fetches */
|
|
|
|
while (c->active != 0) {
|
2003-06-17 23:24:21 +04:00
|
|
|
if (c->active != last_active) {
|
2004-06-05 19:03:59 +04:00
|
|
|
content_set_status(c, messages_get("FetchStyle"),
|
2006-05-29 04:55:43 +04:00
|
|
|
c->active,
|
|
|
|
messages_get((c->active == 1) ? "styl" : "styls"));
|
2004-04-25 03:42:32 +04:00
|
|
|
content_broadcast(c, CONTENT_MSG_STATUS, msg_data);
|
2003-06-17 23:24:21 +04:00
|
|
|
last_active = c->active;
|
2003-04-15 21:53:00 +04:00
|
|
|
}
|
|
|
|
fetch_poll();
|
|
|
|
gui_multitask();
|
|
|
|
}
|
|
|
|
|
2004-06-11 00:41:26 +04:00
|
|
|
/* if (c->error) { */
|
|
|
|
/* content_set_status(c, "Warning: some stylesheets failed to load"); */
|
|
|
|
/* content_broadcast(c, CONTENT_MSG_STATUS, msg_data); */
|
|
|
|
/* } */
|
2005-01-02 01:05:21 +03:00
|
|
|
|
2006-03-22 06:56:44 +03:00
|
|
|
/* any of our stylesheets pointers could be NULL at this point if the
|
|
|
|
CSS file(s) failed to load/fetch */
|
|
|
|
if (c->data.html.stylesheet_content[STYLESHEET_BASE])
|
|
|
|
css_set_origin(c->data.html.stylesheet_content[STYLESHEET_BASE],
|
2005-05-22 03:30:19 +04:00
|
|
|
CSS_ORIGIN_UA);
|
|
|
|
if (c->data.html.stylesheet_content[STYLESHEET_ADBLOCK])
|
|
|
|
css_set_origin(c->data.html.stylesheet_content[
|
|
|
|
STYLESHEET_ADBLOCK], CSS_ORIGIN_UA);
|
|
|
|
if (c->data.html.stylesheet_content[STYLESHEET_STYLE])
|
|
|
|
css_set_origin(c->data.html.stylesheet_content[
|
|
|
|
STYLESHEET_STYLE], CSS_ORIGIN_AUTHOR);
|
|
|
|
for (i = STYLESHEET_START; i != c->data.html.stylesheet_count; i++)
|
2005-05-22 16:44:44 +04:00
|
|
|
if (c->data.html.stylesheet_content[i])
|
|
|
|
css_set_origin(c->data.html.stylesheet_content[i],
|
|
|
|
CSS_ORIGIN_AUTHOR);
|
2005-05-22 03:30:19 +04:00
|
|
|
|
|
|
|
c->data.html.working_stylesheet = css_make_working_stylesheet(
|
|
|
|
c->data.html.stylesheet_content,
|
|
|
|
c->data.html.stylesheet_count);
|
|
|
|
if (!c->data.html.working_stylesheet)
|
|
|
|
return false;
|
|
|
|
|
2005-01-02 01:05:21 +03:00
|
|
|
return true;
|
2003-04-15 21:53:00 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2004-02-20 03:43:17 +03:00
|
|
|
/**
|
|
|
|
* Callback for fetchcache() for linked stylesheets.
|
|
|
|
*/
|
|
|
|
|
|
|
|
void html_convert_css_callback(content_msg msg, struct content *css,
|
2005-08-21 16:04:18 +04:00
|
|
|
intptr_t p1, intptr_t p2, union content_msg_data data)
|
2004-02-20 03:43:17 +03:00
|
|
|
{
|
2005-08-21 16:04:18 +04:00
|
|
|
struct content *c = (struct content *) p1;
|
|
|
|
unsigned int i = p2;
|
2004-04-25 03:42:32 +04:00
|
|
|
|
2004-02-20 03:43:17 +03:00
|
|
|
switch (msg) {
|
|
|
|
case CONTENT_MSG_LOADING:
|
|
|
|
/* check that the stylesheet is really CSS */
|
|
|
|
if (css->type != CONTENT_CSS) {
|
|
|
|
c->data.html.stylesheet_content[i] = 0;
|
|
|
|
c->active--;
|
2004-06-11 00:41:26 +04:00
|
|
|
content_add_error(c, "NotCSS", 0);
|
2004-06-05 19:03:59 +04:00
|
|
|
content_set_status(c, messages_get("NotCSS"));
|
2004-04-25 03:42:32 +04:00
|
|
|
content_broadcast(c, CONTENT_MSG_STATUS, data);
|
2005-08-21 16:04:18 +04:00
|
|
|
content_remove_user(css,
|
|
|
|
html_convert_css_callback,
|
|
|
|
(intptr_t) c, i);
|
2005-07-28 02:49:53 +04:00
|
|
|
if (!css->user_list) {
|
|
|
|
/* we were the only user and we
|
|
|
|
* don't want this content, so
|
|
|
|
* stop it fetching and mark it
|
|
|
|
* as having an error so it gets
|
|
|
|
* removed from the cache next time
|
|
|
|
* content_clean() gets called */
|
|
|
|
fetch_abort(css->fetch);
|
|
|
|
css->fetch = 0;
|
|
|
|
css->status = CONTENT_STATUS_ERROR;
|
|
|
|
}
|
2004-02-20 03:43:17 +03:00
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CONTENT_MSG_READY:
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CONTENT_MSG_DONE:
|
|
|
|
LOG(("got stylesheet '%s'", css->url));
|
|
|
|
c->active--;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CONTENT_MSG_ERROR:
|
|
|
|
c->data.html.stylesheet_content[i] = 0;
|
|
|
|
c->active--;
|
2004-06-11 00:41:26 +04:00
|
|
|
content_add_error(c, "?", 0);
|
2004-02-20 03:43:17 +03:00
|
|
|
break;
|
|
|
|
|
|
|
|
case CONTENT_MSG_STATUS:
|
2004-06-05 19:03:59 +04:00
|
|
|
content_set_status(c, messages_get("FetchStyle2"),
|
2006-05-29 04:55:43 +04:00
|
|
|
c->active,
|
|
|
|
messages_get((c->active == 1) ? "styl" : "styls"),
|
|
|
|
css->status_message);
|
2004-04-25 03:42:32 +04:00
|
|
|
content_broadcast(c, CONTENT_MSG_STATUS, data);
|
2004-02-20 03:43:17 +03:00
|
|
|
break;
|
|
|
|
|
|
|
|
case CONTENT_MSG_REDIRECT:
|
|
|
|
c->active--;
|
|
|
|
c->data.html.stylesheet_content[i] = fetchcache(
|
2004-06-11 03:55:23 +04:00
|
|
|
data.redirect,
|
2004-04-25 03:42:32 +04:00
|
|
|
html_convert_css_callback,
|
2005-08-21 16:04:18 +04:00
|
|
|
(intptr_t) c, i, css->width, css->height,
|
2005-01-03 05:09:20 +03:00
|
|
|
true, 0, 0, false, false);
|
2004-06-11 03:55:23 +04:00
|
|
|
if (c->data.html.stylesheet_content[i]) {
|
2004-02-20 03:43:17 +03:00
|
|
|
c->active++;
|
2004-06-11 03:55:23 +04:00
|
|
|
fetchcache_go(c->data.html.stylesheet_content[i],
|
|
|
|
c->url,
|
|
|
|
html_convert_css_callback,
|
2005-08-21 16:04:18 +04:00
|
|
|
(intptr_t) c, i, css->width,
|
2005-01-25 02:02:37 +03:00
|
|
|
css->height, 0, 0, false);
|
2004-06-11 03:55:23 +04:00
|
|
|
}
|
2004-02-20 03:43:17 +03:00
|
|
|
break;
|
|
|
|
|
2004-08-11 23:02:32 +04:00
|
|
|
case CONTENT_MSG_NEWPTR:
|
|
|
|
c->data.html.stylesheet_content[i] = css;
|
|
|
|
break;
|
|
|
|
|
2004-02-20 03:43:17 +03:00
|
|
|
#ifdef WITH_AUTH
|
|
|
|
case CONTENT_MSG_AUTH:
|
2004-06-13 00:08:47 +04:00
|
|
|
c->data.html.stylesheet_content[i] = 0;
|
2004-02-20 03:43:17 +03:00
|
|
|
c->active--;
|
2004-06-11 00:41:26 +04:00
|
|
|
content_add_error(c, "?", 0);
|
2004-06-13 00:08:47 +04:00
|
|
|
break;
|
2004-02-20 03:43:17 +03:00
|
|
|
#endif
|
|
|
|
|
2006-02-23 18:06:54 +03:00
|
|
|
#ifdef WITH_SSL
|
|
|
|
case CONTENT_MSG_SSL:
|
|
|
|
c->data.html.stylesheet_content[i] = 0;
|
|
|
|
c->active--;
|
|
|
|
content_add_error(c, "?", 0);
|
|
|
|
break;
|
|
|
|
#endif
|
|
|
|
|
2004-02-20 03:43:17 +03:00
|
|
|
default:
|
|
|
|
assert(0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Start a fetch for an object required by a page.
|
|
|
|
*
|
2005-10-31 00:23:03 +03:00
|
|
|
* \param c content of type CONTENT_HTML
|
2005-08-21 02:52:20 +04:00
|
|
|
* \param url URL of object to fetch (copied)
|
|
|
|
* \param box box that will contain the object
|
2004-06-10 03:13:55 +04:00
|
|
|
* \param permitted_types array of types, terminated by CONTENT_UNKNOWN,
|
2004-06-13 00:08:47 +04:00
|
|
|
* or 0 if all types except OTHER and UNKNOWN acceptable
|
2004-06-10 03:13:55 +04:00
|
|
|
* \param available_width estimate of width of object
|
|
|
|
* \param available_height estimate of height of object
|
2005-08-21 02:52:20 +04:00
|
|
|
* \param background this is a background image
|
|
|
|
* \param frame name of frame, or 0 if not a frame (copied)
|
2005-01-02 01:05:21 +03:00
|
|
|
* \return true on success, false on memory exhaustion
|
2004-02-20 03:43:17 +03:00
|
|
|
*/
|
|
|
|
|
2005-01-02 01:05:21 +03:00
|
|
|
bool html_fetch_object(struct content *c, char *url, struct box *box,
|
2004-05-21 18:26:59 +04:00
|
|
|
const content_type *permitted_types,
|
2004-06-10 03:13:55 +04:00
|
|
|
int available_width, int available_height,
|
2005-08-21 02:52:20 +04:00
|
|
|
bool background, char *frame)
|
2003-04-15 21:53:00 +04:00
|
|
|
{
|
2003-06-17 23:24:21 +04:00
|
|
|
unsigned int i = c->data.html.object_count;
|
2005-01-02 01:05:21 +03:00
|
|
|
struct content_html_object *object;
|
2005-03-24 16:44:24 +03:00
|
|
|
struct content *c_fetch;
|
2005-04-09 13:47:37 +04:00
|
|
|
|
2005-03-24 16:44:24 +03:00
|
|
|
/* initialise fetch */
|
|
|
|
c_fetch = fetchcache(url, html_object_callback,
|
2005-08-21 16:04:18 +04:00
|
|
|
(intptr_t) c, i, available_width, available_height,
|
2005-03-24 16:44:24 +03:00
|
|
|
true, 0, 0, false, false);
|
|
|
|
if (!c_fetch)
|
|
|
|
return false;
|
2003-06-05 17:17:55 +04:00
|
|
|
|
2003-04-15 21:53:00 +04:00
|
|
|
/* add to object list */
|
2005-04-09 13:47:37 +04:00
|
|
|
object = talloc_realloc(c, c->data.html.object,
|
|
|
|
struct content_html_object, i + 1);
|
2005-03-24 16:44:24 +03:00
|
|
|
if (!object) {
|
2005-08-21 16:04:18 +04:00
|
|
|
content_remove_user(c_fetch, html_object_callback,
|
|
|
|
(intptr_t) c, i);
|
2005-01-02 01:05:21 +03:00
|
|
|
return false;
|
2005-03-24 16:44:24 +03:00
|
|
|
}
|
2005-01-02 01:05:21 +03:00
|
|
|
c->data.html.object = object;
|
2005-04-09 13:47:37 +04:00
|
|
|
c->data.html.object[i].url = talloc_strdup(c, url);
|
|
|
|
if (!c->data.html.object[i].url) {
|
2005-08-21 16:04:18 +04:00
|
|
|
content_remove_user(c_fetch, html_object_callback,
|
|
|
|
(intptr_t) c, i);
|
2005-04-09 13:47:37 +04:00
|
|
|
return false;
|
|
|
|
}
|
2003-06-17 23:24:21 +04:00
|
|
|
c->data.html.object[i].box = box;
|
2004-01-24 20:08:16 +03:00
|
|
|
c->data.html.object[i].permitted_types = permitted_types;
|
2004-06-10 03:13:55 +04:00
|
|
|
c->data.html.object[i].background = background;
|
2005-03-24 16:44:24 +03:00
|
|
|
c->data.html.object[i].content = c_fetch;
|
2005-08-21 02:52:20 +04:00
|
|
|
c->data.html.object[i].frame = 0;
|
|
|
|
if (frame)
|
|
|
|
c->data.html.object[i].frame = talloc_strdup(c, frame);
|
2005-01-02 01:05:21 +03:00
|
|
|
c->data.html.object_count++;
|
2005-03-24 16:44:24 +03:00
|
|
|
c->active++;
|
2003-04-15 21:53:00 +04:00
|
|
|
|
|
|
|
/* start fetch */
|
2005-03-24 16:44:24 +03:00
|
|
|
fetchcache_go(c_fetch, c->url,
|
2005-08-21 16:04:18 +04:00
|
|
|
html_object_callback, (intptr_t) c, i,
|
2005-01-25 02:02:37 +03:00
|
|
|
available_width, available_height,
|
2005-01-02 01:05:21 +03:00
|
|
|
0, 0, false);
|
|
|
|
|
|
|
|
return true;
|
2003-04-15 21:53:00 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2005-10-31 00:23:03 +03:00
|
|
|
/**
|
|
|
|
* Start a fetch for an object required by a page, replacing an existing object.
|
|
|
|
*
|
|
|
|
* \param c content of type CONTENT_HTML
|
|
|
|
* \param i index of object to replace in c->data.html.object
|
|
|
|
* \param url URL of object to fetch (copied)
|
|
|
|
* \param post_urlenc url encoded post data, or 0 if none
|
|
|
|
* \param post_multipart multipart post data, or 0 if none
|
|
|
|
* \return true on success, false on memory exhaustion
|
|
|
|
*/
|
|
|
|
|
|
|
|
bool html_replace_object(struct content *c, unsigned int i, char *url,
|
|
|
|
char *post_urlenc,
|
|
|
|
struct form_successful_control *post_multipart)
|
|
|
|
{
|
|
|
|
struct content *c_fetch;
|
|
|
|
struct content *page;
|
|
|
|
|
|
|
|
assert(c->type == CONTENT_HTML);
|
|
|
|
|
|
|
|
if (c->data.html.object[i].content) {
|
|
|
|
/* remove existing object */
|
|
|
|
if (c->data.html.object[i].content->status !=
|
|
|
|
CONTENT_STATUS_DONE)
|
|
|
|
c->active--;
|
|
|
|
content_remove_user(c->data.html.object[i].content,
|
|
|
|
html_object_callback, (intptr_t) c, i);
|
|
|
|
c->data.html.object[i].content = 0;
|
|
|
|
c->data.html.object[i].box->object = 0;
|
|
|
|
talloc_free(c->data.html.object[i].url);
|
|
|
|
c->data.html.object[i].url = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* initialise fetch */
|
|
|
|
c_fetch = fetchcache(url, html_object_callback,
|
|
|
|
(intptr_t) c, i,
|
|
|
|
c->data.html.object[i].box->width,
|
|
|
|
c->data.html.object[i].box->height,
|
|
|
|
false, post_urlenc, post_multipart, false, false);
|
|
|
|
if (!c_fetch)
|
|
|
|
return false;
|
|
|
|
|
|
|
|
c->data.html.object[i].url = talloc_strdup(c, url);
|
|
|
|
if (!c->data.html.object[i].url) {
|
|
|
|
content_remove_user(c_fetch, html_object_callback,
|
|
|
|
(intptr_t) c, i);
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
c->data.html.object[i].content = c_fetch;
|
|
|
|
|
|
|
|
for (page = c; page; page = page->data.html.page) {
|
|
|
|
assert(page->type == CONTENT_HTML);
|
|
|
|
page->active++;
|
|
|
|
page->status = CONTENT_STATUS_READY;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* start fetch */
|
|
|
|
fetchcache_go(c_fetch, c->url,
|
|
|
|
html_object_callback, (intptr_t) c, i,
|
|
|
|
c->data.html.object[i].box->width,
|
|
|
|
c->data.html.object[i].box->height,
|
|
|
|
post_urlenc, post_multipart, false);
|
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2004-02-20 03:43:17 +03:00
|
|
|
/**
|
|
|
|
* Callback for fetchcache() for objects.
|
|
|
|
*/
|
|
|
|
|
2003-06-17 23:24:21 +04:00
|
|
|
void html_object_callback(content_msg msg, struct content *object,
|
2005-08-21 16:04:18 +04:00
|
|
|
intptr_t p1, intptr_t p2, union content_msg_data data)
|
2003-04-15 21:53:00 +04:00
|
|
|
{
|
2005-08-21 16:04:18 +04:00
|
|
|
struct content *c = (struct content *) p1;
|
|
|
|
unsigned int i = p2;
|
2004-04-25 03:42:32 +04:00
|
|
|
int x, y;
|
2003-04-15 21:53:00 +04:00
|
|
|
struct box *box = c->data.html.object[i].box;
|
2004-01-24 20:08:16 +03:00
|
|
|
|
2003-04-15 21:53:00 +04:00
|
|
|
switch (msg) {
|
2003-06-17 23:24:21 +04:00
|
|
|
case CONTENT_MSG_LOADING:
|
2004-01-24 20:08:16 +03:00
|
|
|
/* check if the type is acceptable for this object */
|
|
|
|
if (html_object_type_permitted(object->type,
|
2004-08-12 02:08:26 +04:00
|
|
|
c->data.html.object[i].permitted_types)) {
|
|
|
|
if (c->data.html.bw)
|
|
|
|
content_open(object,
|
|
|
|
c->data.html.bw, c,
|
2005-10-31 00:23:03 +03:00
|
|
|
i, box,
|
2004-08-12 02:08:26 +04:00
|
|
|
box->object_params);
|
2004-01-24 20:08:16 +03:00
|
|
|
break;
|
2004-08-12 02:08:26 +04:00
|
|
|
}
|
2004-01-24 20:08:16 +03:00
|
|
|
|
|
|
|
/* not acceptable */
|
|
|
|
c->data.html.object[i].content = 0;
|
|
|
|
c->active--;
|
2004-06-11 00:41:26 +04:00
|
|
|
content_add_error(c, "?", 0);
|
2004-06-05 19:03:59 +04:00
|
|
|
content_set_status(c, messages_get("BadObject"));
|
2004-04-25 03:42:32 +04:00
|
|
|
content_broadcast(c, CONTENT_MSG_STATUS, data);
|
2005-08-21 16:04:18 +04:00
|
|
|
content_remove_user(object, html_object_callback,
|
|
|
|
(intptr_t) c, i);
|
2005-04-14 01:58:28 +04:00
|
|
|
html_object_failed(box, c,
|
|
|
|
c->data.html.object[i].background);
|
2003-06-17 23:24:21 +04:00
|
|
|
break;
|
|
|
|
|
|
|
|
case CONTENT_MSG_READY:
|
2004-05-21 18:26:59 +04:00
|
|
|
if (object->type == CONTENT_HTML) {
|
2004-06-11 03:55:23 +04:00
|
|
|
html_object_done(box, object,
|
|
|
|
c->data.html.object[i].background);
|
|
|
|
if (c->status == CONTENT_STATUS_READY ||
|
|
|
|
c->status ==
|
|
|
|
CONTENT_STATUS_DONE)
|
|
|
|
content_reformat(c,
|
2006-06-29 23:55:08 +04:00
|
|
|
c->available_width,
|
|
|
|
c->height);
|
2004-05-21 18:26:59 +04:00
|
|
|
}
|
2003-06-17 23:24:21 +04:00
|
|
|
break;
|
|
|
|
|
|
|
|
case CONTENT_MSG_DONE:
|
2005-04-14 01:58:28 +04:00
|
|
|
html_object_done(box, object,
|
|
|
|
c->data.html.object[i].background);
|
2003-04-15 21:53:00 +04:00
|
|
|
c->active--;
|
|
|
|
break;
|
2003-06-17 23:24:21 +04:00
|
|
|
|
|
|
|
case CONTENT_MSG_ERROR:
|
|
|
|
c->data.html.object[i].content = 0;
|
|
|
|
c->active--;
|
2004-06-11 00:41:26 +04:00
|
|
|
content_add_error(c, "?", 0);
|
2004-06-05 19:03:59 +04:00
|
|
|
content_set_status(c, messages_get("ObjError"),
|
|
|
|
data.error);
|
2004-04-25 03:42:32 +04:00
|
|
|
content_broadcast(c, CONTENT_MSG_STATUS, data);
|
2005-04-14 01:58:28 +04:00
|
|
|
html_object_failed(box, c,
|
|
|
|
c->data.html.object[i].background);
|
2003-06-17 23:24:21 +04:00
|
|
|
break;
|
|
|
|
|
|
|
|
case CONTENT_MSG_STATUS:
|
2004-06-05 19:03:59 +04:00
|
|
|
content_set_status(c, messages_get("FetchObjs2"),
|
2006-05-29 04:55:43 +04:00
|
|
|
c->active,
|
|
|
|
messages_get((c->active == 1) ? "obj" : "objs"),
|
|
|
|
object->status_message);
|
2003-10-01 20:12:04 +04:00
|
|
|
/* content_broadcast(c, CONTENT_MSG_STATUS, 0); */
|
2003-04-15 21:53:00 +04:00
|
|
|
break;
|
2003-06-17 23:24:21 +04:00
|
|
|
|
2003-06-26 15:41:26 +04:00
|
|
|
case CONTENT_MSG_REDIRECT:
|
|
|
|
c->active--;
|
2005-04-09 13:47:37 +04:00
|
|
|
talloc_free(c->data.html.object[i].url);
|
|
|
|
c->data.html.object[i].url = talloc_strdup(c,
|
|
|
|
data.redirect);
|
2005-01-02 01:05:21 +03:00
|
|
|
if (!c->data.html.object[i].url) {
|
|
|
|
/** \todo report oom */
|
|
|
|
} else {
|
|
|
|
c->data.html.object[i].content = fetchcache(
|
|
|
|
data.redirect,
|
|
|
|
html_object_callback,
|
2005-08-21 16:04:18 +04:00
|
|
|
(intptr_t) c, i, 0, 0, true,
|
2005-01-03 05:09:20 +03:00
|
|
|
0, 0, false, false);
|
2005-01-02 01:05:21 +03:00
|
|
|
if (!c->data.html.object[i].content) {
|
|
|
|
/** \todo report oom */
|
|
|
|
} else {
|
|
|
|
c->active++;
|
|
|
|
fetchcache_go(c->data.html.object[i].
|
|
|
|
content,
|
|
|
|
c->url,
|
|
|
|
html_object_callback,
|
2005-08-21 16:04:18 +04:00
|
|
|
(intptr_t) c, i,
|
2005-01-25 02:02:37 +03:00
|
|
|
0, 0,
|
2005-01-02 01:05:21 +03:00
|
|
|
0, 0, false);
|
|
|
|
}
|
2003-09-28 21:37:19 +04:00
|
|
|
}
|
2003-07-08 02:10:51 +04:00
|
|
|
break;
|
2003-06-26 15:41:26 +04:00
|
|
|
|
2003-09-11 01:44:11 +04:00
|
|
|
case CONTENT_MSG_REFORMAT:
|
|
|
|
break;
|
|
|
|
|
2004-03-21 15:50:10 +03:00
|
|
|
case CONTENT_MSG_REDRAW:
|
2004-04-25 03:42:32 +04:00
|
|
|
box_coords(box, &x, &y);
|
2004-06-21 03:09:52 +04:00
|
|
|
if (object == data.redraw.object) {
|
2004-04-26 17:47:51 +04:00
|
|
|
data.redraw.x = data.redraw.x *
|
2004-06-21 03:09:52 +04:00
|
|
|
box->width / object->width;
|
2004-04-26 17:47:51 +04:00
|
|
|
data.redraw.y = data.redraw.y *
|
2004-06-21 03:09:52 +04:00
|
|
|
box->height / object->height;
|
2004-04-26 17:47:51 +04:00
|
|
|
data.redraw.width = data.redraw.width *
|
2004-06-21 03:09:52 +04:00
|
|
|
box->width / object->width;
|
2004-04-26 17:47:51 +04:00
|
|
|
data.redraw.height = data.redraw.height *
|
2004-06-21 03:09:52 +04:00
|
|
|
box->height / object->height;
|
2004-04-26 17:47:51 +04:00
|
|
|
data.redraw.object_width = box->width;
|
|
|
|
data.redraw.object_height = box->height;
|
|
|
|
}
|
|
|
|
data.redraw.x += x + box->padding[LEFT];
|
|
|
|
data.redraw.y += y + box->padding[TOP];
|
|
|
|
data.redraw.object_x += x + box->padding[LEFT];
|
|
|
|
data.redraw.object_y += y + box->padding[TOP];
|
2004-04-25 03:42:32 +04:00
|
|
|
content_broadcast(c, CONTENT_MSG_REDRAW, data);
|
2004-03-21 15:50:10 +03:00
|
|
|
break;
|
|
|
|
|
2004-08-11 23:02:32 +04:00
|
|
|
case CONTENT_MSG_NEWPTR:
|
|
|
|
c->data.html.object[i].content = object;
|
|
|
|
break;
|
|
|
|
|
2004-01-05 05:10:59 +03:00
|
|
|
#ifdef WITH_AUTH
|
2003-10-25 23:20:13 +04:00
|
|
|
case CONTENT_MSG_AUTH:
|
2004-06-13 00:08:47 +04:00
|
|
|
c->data.html.object[i].content = 0;
|
2003-10-26 02:51:45 +04:00
|
|
|
c->active--;
|
2004-06-11 00:41:26 +04:00
|
|
|
content_add_error(c, "?", 0);
|
2004-06-13 00:08:47 +04:00
|
|
|
break;
|
2004-01-05 05:10:59 +03:00
|
|
|
#endif
|
2003-10-25 23:20:13 +04:00
|
|
|
|
2006-02-23 18:06:54 +03:00
|
|
|
#ifdef WITH_SSL
|
|
|
|
case CONTENT_MSG_SSL:
|
|
|
|
c->data.html.object[i].content = 0;
|
|
|
|
c->active--;
|
|
|
|
content_add_error(c, "?", 0);
|
|
|
|
break;
|
|
|
|
#endif
|
|
|
|
|
2006-01-25 09:52:38 +03:00
|
|
|
case CONTENT_MSG_REFRESH:
|
|
|
|
if (object->type == CONTENT_HTML)
|
|
|
|
/* only for HTML objects */
|
|
|
|
schedule(data.delay * 100,
|
|
|
|
html_object_refresh, object);
|
|
|
|
break;
|
|
|
|
|
2003-04-15 21:53:00 +04:00
|
|
|
default:
|
|
|
|
assert(0);
|
|
|
|
}
|
2003-06-17 23:24:21 +04:00
|
|
|
|
2004-05-21 18:26:59 +04:00
|
|
|
if (c->status == CONTENT_STATUS_READY && c->active == 0 &&
|
|
|
|
(msg == CONTENT_MSG_LOADING ||
|
|
|
|
msg == CONTENT_MSG_DONE ||
|
|
|
|
msg == CONTENT_MSG_ERROR ||
|
|
|
|
msg == CONTENT_MSG_REDIRECT ||
|
|
|
|
msg == CONTENT_MSG_AUTH)) {
|
2003-06-17 23:24:21 +04:00
|
|
|
/* all objects have arrived */
|
2006-06-29 23:55:08 +04:00
|
|
|
content_reformat(c, c->available_width, c->height);
|
2003-06-17 23:24:21 +04:00
|
|
|
c->status = CONTENT_STATUS_DONE;
|
2004-06-05 19:03:59 +04:00
|
|
|
content_set_status(c, messages_get("Done"));
|
2004-04-25 03:42:32 +04:00
|
|
|
content_broadcast(c, CONTENT_MSG_DONE, data);
|
2003-06-17 23:24:21 +04:00
|
|
|
}
|
2003-06-30 19:56:35 +04:00
|
|
|
if (c->status == CONTENT_STATUS_READY)
|
2006-05-29 04:55:43 +04:00
|
|
|
content_set_status(c, messages_get("FetchObjs"), c->active,
|
|
|
|
messages_get((c->active == 1) ? "obj" : "objs"));
|
2003-02-09 15:58:15 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2004-05-21 18:26:59 +04:00
|
|
|
/**
|
|
|
|
* Update a box whose content has completed rendering.
|
|
|
|
*/
|
|
|
|
|
2004-06-09 23:55:06 +04:00
|
|
|
void html_object_done(struct box *box, struct content *object,
|
2004-06-13 00:08:47 +04:00
|
|
|
bool background)
|
2004-05-21 18:26:59 +04:00
|
|
|
{
|
|
|
|
struct box *b;
|
|
|
|
|
2004-06-13 00:08:47 +04:00
|
|
|
if (background) {
|
|
|
|
box->background = object;
|
2004-06-25 03:29:31 +04:00
|
|
|
return;
|
2004-06-13 00:08:47 +04:00
|
|
|
}
|
2004-06-25 03:29:31 +04:00
|
|
|
|
2005-10-31 00:23:03 +03:00
|
|
|
box->object = object;
|
2004-05-21 18:26:59 +04:00
|
|
|
|
|
|
|
/* invalidate parent min, max widths */
|
2005-10-31 00:23:03 +03:00
|
|
|
for (b = box; b; b = b->parent)
|
2004-05-21 18:26:59 +04:00
|
|
|
b->max_width = UNKNOWN_MAX_WIDTH;
|
|
|
|
|
|
|
|
/* delete any clones of this box */
|
|
|
|
while (box->next && box->next->clone) {
|
|
|
|
/* box_free_box(box->next); */
|
|
|
|
box->next = box->next->next;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2005-04-14 01:58:28 +04:00
|
|
|
/**
|
|
|
|
* Handle object fetching or loading failure.
|
|
|
|
*
|
|
|
|
* \param box box containing object which failed to load
|
|
|
|
* \param content document of type CONTENT_HTML
|
|
|
|
* \param background the object was the background image for the box
|
|
|
|
*
|
|
|
|
* Any fallback content for the object is made visible.
|
|
|
|
*/
|
|
|
|
|
|
|
|
void html_object_failed(struct box *box, struct content *content,
|
|
|
|
bool background)
|
|
|
|
{
|
|
|
|
struct box *b, *ic;
|
|
|
|
|
|
|
|
if (background)
|
|
|
|
return;
|
|
|
|
if (!box->fallback)
|
|
|
|
return;
|
|
|
|
|
|
|
|
/* make fallback boxes into children or siblings, as appropriate */
|
|
|
|
if (box->type != BOX_INLINE) {
|
|
|
|
/* easy case: fallbacks become children */
|
|
|
|
assert(box->type == BOX_BLOCK ||
|
|
|
|
box->type == BOX_TABLE_CELL ||
|
|
|
|
box->type == BOX_INLINE_BLOCK);
|
|
|
|
box->children = box->fallback;
|
|
|
|
box->last = box->children;
|
|
|
|
while (box->last->next)
|
|
|
|
box->last = box->last->next;
|
|
|
|
box->fallback = 0;
|
|
|
|
box_normalise_block(box, content);
|
|
|
|
} else {
|
|
|
|
assert(box->parent->type == BOX_INLINE_CONTAINER);
|
|
|
|
if (box->fallback->type == BOX_INLINE_CONTAINER &&
|
|
|
|
!box->fallback->next) {
|
|
|
|
/* the fallback is a single inline container: splice
|
|
|
|
* it into this inline container */
|
|
|
|
for (b = box->fallback->children; b; b = b->next)
|
|
|
|
b->parent = box->parent;
|
|
|
|
box->fallback->last->next = box->next;
|
|
|
|
if (!box->next)
|
|
|
|
box->parent->last = box->fallback->last;
|
|
|
|
box->next = box->fallback->children;
|
|
|
|
box->next->prev = box;
|
|
|
|
box->fallback = 0;
|
|
|
|
} else {
|
|
|
|
if (box->next) {
|
|
|
|
/* split this inline container into two inline
|
|
|
|
* containers */
|
2005-08-23 02:49:52 +04:00
|
|
|
ic = box_create(0, 0, 0, 0, 0, content);
|
2005-04-14 01:58:28 +04:00
|
|
|
if (!ic) {
|
|
|
|
warn_user("NoMemory", 0);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
ic->type = BOX_INLINE_CONTAINER;
|
|
|
|
box_insert_sibling(box->parent, ic);
|
|
|
|
ic->children = box->next;
|
|
|
|
ic->last = box->parent->last;
|
|
|
|
ic->children->prev = 0;
|
|
|
|
box->next = 0;
|
|
|
|
box->parent->last = box;
|
|
|
|
for (b = ic->children; b; b = b->next)
|
|
|
|
b->parent = ic;
|
|
|
|
}
|
|
|
|
/* insert the fallback after the parent */
|
|
|
|
for (b = box->fallback; b->next; b = b->next)
|
|
|
|
b->parent = box->parent->parent;
|
|
|
|
b->parent = box->parent->parent;
|
|
|
|
/* [b is the last fallback box] */
|
|
|
|
b->next = box->parent->next;
|
|
|
|
if (b->next)
|
|
|
|
b->next->prev = b;
|
|
|
|
box->parent->next = box->fallback;
|
|
|
|
box->fallback->prev = box->parent;
|
|
|
|
box->fallback = 0;
|
|
|
|
box_normalise_block(box->parent->parent, content);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* invalidate parent min, max widths */
|
|
|
|
for (b = box->parent; b; b = b->parent)
|
|
|
|
b->max_width = UNKNOWN_MAX_WIDTH;
|
|
|
|
box->width = UNKNOWN_WIDTH;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2004-01-24 20:08:16 +03:00
|
|
|
/**
|
|
|
|
* Check if a type is in a list.
|
|
|
|
*
|
|
|
|
* \param type the content_type to search for
|
|
|
|
* \param permitted_types array of types, terminated by CONTENT_UNKNOWN,
|
2004-06-13 00:08:47 +04:00
|
|
|
* or 0 if all types except OTHER and UNKNOWN acceptable
|
2004-01-24 20:08:16 +03:00
|
|
|
* \return the type is in the list or acceptable
|
|
|
|
*/
|
|
|
|
|
|
|
|
bool html_object_type_permitted(const content_type type,
|
|
|
|
const content_type *permitted_types)
|
|
|
|
{
|
|
|
|
if (permitted_types) {
|
|
|
|
for (; *permitted_types != CONTENT_UNKNOWN; permitted_types++)
|
|
|
|
if (*permitted_types == type)
|
|
|
|
return true;
|
|
|
|
} else if (type < CONTENT_OTHER) {
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2006-01-25 09:52:38 +03:00
|
|
|
/**
|
|
|
|
* schedule() callback for object refresh
|
|
|
|
*/
|
|
|
|
|
|
|
|
void html_object_refresh(void *p)
|
|
|
|
{
|
|
|
|
struct content *c = (struct content *)p;
|
|
|
|
|
|
|
|
assert(c->type == CONTENT_HTML && c->refresh);
|
|
|
|
|
|
|
|
c->fresh = false;
|
|
|
|
|
|
|
|
if (!html_replace_object(c->data.html.page, c->data.html.index,
|
|
|
|
c->refresh, 0, 0)) {
|
|
|
|
/** \todo handle memory exhaustion */
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2004-06-21 03:09:52 +04:00
|
|
|
/**
|
|
|
|
* Stop loading a CONTENT_HTML in state READY.
|
|
|
|
*/
|
|
|
|
|
|
|
|
void html_stop(struct content *c)
|
|
|
|
{
|
|
|
|
unsigned int i;
|
|
|
|
struct content *object;
|
|
|
|
|
|
|
|
assert(c->status == CONTENT_STATUS_READY);
|
|
|
|
|
|
|
|
for (i = 0; i != c->data.html.object_count; i++) {
|
|
|
|
object = c->data.html.object[i].content;
|
|
|
|
if (!object)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
if (object->status == CONTENT_STATUS_DONE)
|
|
|
|
; /* already loaded: do nothing */
|
|
|
|
else if (object->status == CONTENT_STATUS_READY)
|
|
|
|
content_stop(object, html_object_callback,
|
2005-08-21 16:04:18 +04:00
|
|
|
(intptr_t) c, i);
|
2004-06-21 03:09:52 +04:00
|
|
|
else {
|
|
|
|
content_remove_user(c->data.html.object[i].content,
|
2005-08-21 16:04:18 +04:00
|
|
|
html_object_callback, (intptr_t) c, i);
|
2004-06-21 03:09:52 +04:00
|
|
|
c->data.html.object[i].content = 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
c->status = CONTENT_STATUS_DONE;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2004-02-20 03:43:17 +03:00
|
|
|
/**
|
|
|
|
* Reformat a CONTENT_HTML to a new width.
|
|
|
|
*/
|
|
|
|
|
2004-06-11 00:41:26 +04:00
|
|
|
void html_reformat(struct content *c, int width, int height)
|
2003-02-09 15:58:15 +03:00
|
|
|
{
|
2006-03-27 02:43:22 +04:00
|
|
|
struct box *doc;
|
2005-07-02 22:17:51 +04:00
|
|
|
layout_document(c, width, height);
|
2006-03-27 02:43:22 +04:00
|
|
|
doc = c->data.html.layout;
|
2006-06-29 23:55:08 +04:00
|
|
|
|
|
|
|
c->width = doc->descendant_x1 +
|
2006-03-27 03:05:08 +04:00
|
|
|
doc->margin[LEFT] + doc->margin[RIGHT];
|
2006-06-29 23:55:08 +04:00
|
|
|
|
|
|
|
c->height = doc->descendant_y1 +
|
2006-03-27 03:05:08 +04:00
|
|
|
doc->margin[TOP] + doc->margin[BOTTOM];
|
2003-02-09 15:58:15 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2004-02-20 03:43:17 +03:00
|
|
|
/**
|
|
|
|
* Destroy a CONTENT_HTML and free all resources it owns.
|
|
|
|
*/
|
|
|
|
|
2003-02-09 15:58:15 +03:00
|
|
|
void html_destroy(struct content *c)
|
|
|
|
{
|
2003-04-15 21:53:00 +04:00
|
|
|
unsigned int i;
|
2003-02-09 15:58:15 +03:00
|
|
|
LOG(("content %p", c));
|
|
|
|
|
2004-06-13 00:08:47 +04:00
|
|
|
imagemap_destroy(c);
|
2004-03-27 01:16:31 +03:00
|
|
|
|
2005-06-23 21:22:28 +04:00
|
|
|
if (c->bitmap) {
|
|
|
|
bitmap_destroy(c->bitmap);
|
|
|
|
c->bitmap = NULL;
|
|
|
|
}
|
|
|
|
|
2004-02-20 03:43:17 +03:00
|
|
|
if (c->data.html.parser)
|
|
|
|
htmlFreeParserCtxt(c->data.html.parser);
|
|
|
|
|
|
|
|
/* Free stylesheets */
|
|
|
|
if (c->data.html.stylesheet_count) {
|
2004-06-21 19:09:59 +04:00
|
|
|
for (i = 0; i != c->data.html.stylesheet_count; i++) {
|
2004-02-20 03:43:17 +03:00
|
|
|
if (c->data.html.stylesheet_content[i])
|
2004-06-21 19:09:59 +04:00
|
|
|
content_remove_user(c->data.html.
|
|
|
|
stylesheet_content[i],
|
|
|
|
html_convert_css_callback,
|
2005-08-21 16:04:18 +04:00
|
|
|
(intptr_t) c, i);
|
2004-06-21 19:09:59 +04:00
|
|
|
}
|
2004-02-20 03:43:17 +03:00
|
|
|
}
|
2005-01-17 00:32:10 +03:00
|
|
|
|
2005-05-22 03:30:19 +04:00
|
|
|
talloc_free(c->data.html.working_stylesheet);
|
|
|
|
|
2005-04-09 13:47:37 +04:00
|
|
|
/*if (c->data.html.style)
|
|
|
|
css_free_style(c->data.html.style);*/
|
2004-02-20 03:43:17 +03:00
|
|
|
|
|
|
|
/* Free objects */
|
2003-07-10 01:33:01 +04:00
|
|
|
for (i = 0; i != c->data.html.object_count; i++) {
|
|
|
|
LOG(("object %i %p", i, c->data.html.object[i].content));
|
2006-01-25 11:25:38 +03:00
|
|
|
if (c->data.html.object[i].content) {
|
2003-07-10 01:33:01 +04:00
|
|
|
content_remove_user(c->data.html.object[i].content,
|
2005-08-21 16:04:18 +04:00
|
|
|
html_object_callback, (intptr_t) c, i);
|
2006-01-25 11:25:38 +03:00
|
|
|
if (c->data.html.object[i].content->type == CONTENT_HTML)
|
|
|
|
schedule_remove(html_object_refresh,
|
|
|
|
c->data.html.object[i].content);
|
|
|
|
}
|
2003-07-10 01:33:01 +04:00
|
|
|
}
|
2003-02-09 15:58:15 +03:00
|
|
|
}
|
2004-08-12 02:08:26 +04:00
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Handle a window containing a CONTENT_HTML being opened.
|
|
|
|
*/
|
|
|
|
|
|
|
|
void html_open(struct content *c, struct browser_window *bw,
|
2005-10-31 00:23:03 +03:00
|
|
|
struct content *page, unsigned int index, struct box *box,
|
2004-08-12 02:08:26 +04:00
|
|
|
struct object_params *params)
|
|
|
|
{
|
|
|
|
unsigned int i;
|
|
|
|
c->data.html.bw = bw;
|
2005-10-31 00:23:03 +03:00
|
|
|
c->data.html.page = page;
|
|
|
|
c->data.html.index = index;
|
|
|
|
c->data.html.box = box;
|
2004-08-12 02:08:26 +04:00
|
|
|
for (i = 0; i != c->data.html.object_count; i++) {
|
|
|
|
if (c->data.html.object[i].content == 0)
|
|
|
|
continue;
|
|
|
|
if (c->data.html.object[i].content->type == CONTENT_UNKNOWN)
|
|
|
|
continue;
|
|
|
|
content_open(c->data.html.object[i].content,
|
2005-10-31 00:23:03 +03:00
|
|
|
bw, c, i,
|
2004-08-12 02:08:26 +04:00
|
|
|
c->data.html.object[i].box,
|
|
|
|
c->data.html.object[i].box->object_params);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Handle a window containing a CONTENT_HTML being closed.
|
|
|
|
*/
|
|
|
|
|
|
|
|
void html_close(struct content *c)
|
|
|
|
{
|
|
|
|
unsigned int i;
|
|
|
|
c->data.html.bw = 0;
|
2006-01-25 11:25:38 +03:00
|
|
|
schedule_remove(html_object_refresh, c);
|
2004-08-12 02:08:26 +04:00
|
|
|
for (i = 0; i != c->data.html.object_count; i++) {
|
|
|
|
if (c->data.html.object[i].content == 0)
|
|
|
|
continue;
|
|
|
|
if (c->data.html.object[i].content->type == CONTENT_UNKNOWN)
|
|
|
|
continue;
|
|
|
|
content_close(c->data.html.object[i].content);
|
|
|
|
}
|
|
|
|
}
|
2005-10-31 00:23:03 +03:00
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Find the target frame for a link.
|
|
|
|
*
|
|
|
|
* \param c content containing the link, of type CONTENT_HTML
|
|
|
|
* \param target target frame
|
|
|
|
* \retval page updated to content containing target object, or 0 if the
|
|
|
|
* target should replace the top-level content
|
|
|
|
* \retval i updated to index of target object in page->data.html.object
|
|
|
|
*/
|
|
|
|
|
|
|
|
void html_find_target(struct content *c, const char *target,
|
|
|
|
struct content **page, unsigned int *i)
|
|
|
|
{
|
|
|
|
*page = 0;
|
|
|
|
|
|
|
|
assert(c->type == CONTENT_HTML);
|
|
|
|
|
|
|
|
if (!target) {
|
|
|
|
/** \todo get target from <base target=...> */
|
|
|
|
*page = c->data.html.page;
|
|
|
|
*i = c->data.html.index;
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (target == TARGET_SELF) {
|
|
|
|
*page = c->data.html.page;
|
|
|
|
*i = c->data.html.index;
|
|
|
|
return;
|
|
|
|
} else if (target == TARGET_PARENT) {
|
|
|
|
if (c->data.html.page && c->data.html.page->data.html.page) {
|
|
|
|
*page = c->data.html.page->data.html.page;
|
|
|
|
*i = c->data.html.page->data.html.index;
|
|
|
|
}
|
|
|
|
return;
|
|
|
|
} else if (target == TARGET_TOP) {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* recursively search for a frame named target, starting with the
|
|
|
|
* top-level content in the frameset */
|
|
|
|
while (c->data.html.page)
|
|
|
|
c = c->data.html.page;
|
|
|
|
|
|
|
|
html_find_frame(c, target, page, i);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Recursively search a frameset for a frame.
|
|
|
|
*
|
|
|
|
* \param c frameset page, of type CONTENT_HTML
|
|
|
|
* \param frame name of frame
|
|
|
|
* \retval page updated to content containing the frame, if true returned
|
|
|
|
* \retval i updated to index of target frame in page->data.html.object
|
|
|
|
* \return true iff the frame was found
|
|
|
|
*/
|
|
|
|
|
|
|
|
bool html_find_frame(struct content *c, const char *frame,
|
|
|
|
struct content **page, unsigned int *i)
|
|
|
|
{
|
|
|
|
unsigned int j;
|
|
|
|
|
|
|
|
assert(c->type == CONTENT_HTML);
|
|
|
|
|
|
|
|
for (j = 0; j != c->data.html.object_count; j++) {
|
2006-07-12 08:22:57 +04:00
|
|
|
if (c->data.html.object[j].frame &&
|
|
|
|
!strcmp(c->data.html.object[j].frame, frame)) {
|
2005-10-31 00:23:03 +03:00
|
|
|
*page = c;
|
|
|
|
*i = j;
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
if (c->data.html.object[j].content &&
|
|
|
|
c->data.html.object[j].content->type ==
|
|
|
|
CONTENT_HTML) {
|
|
|
|
if (html_find_frame(c->data.html.object[j].content,
|
|
|
|
frame, page, i))
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return false;
|
|
|
|
}
|