/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ /* Copyright (C) 2000,2001 CodeFactory AB Copyright (C) 2000,2001 Jonas Borgström Copyright (C) 2000,2001 Anders Carlsson This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include #include #include #include "css/cssmatcher.h" #include "document/htmldocument.h" #include "document/htmlparser.h" #include "dom/events/dom-event-utils.h" #include "dom/html/dom-htmlformelement.h" #include "dom/html/dom-htmlinputelement.h" #include "dom/html/dom-htmloptionelement.h" #include "dom/html/dom-htmltextareaelement.h" #include "dom/html/dom-htmlanchorelement.h" #include "util/htmlmarshal.h" #include "util/htmlstreambuffer.h" #include "util/htmlglobalatoms.h" #include "gtkhtmlcontext.h" enum { REQUEST_URL, REQUEST_ICON, LINK_CLICKED, SET_BASE, TITLE_CHANGED, SUBMIT, /* DOM change events */ NODE_INSERTED, NODE_REMOVED, TEXT_UPDATED, STYLE_UPDATED, RELAYOUT_NODE, REPAINT_NODE, /* DOM Events */ DOM_MOUSE_DOWN, DOM_MOUSE_UP, DOM_MOUSE_CLICK, DOM_MOUSE_OVER, DOM_MOUSE_OUT, LAST_SIGNAL }; typedef struct _RefreshData RefreshData; struct _RefreshData { HtmlDocument *doc; gchar *url; }; static GObjectClass *parent_class = NULL; static guint document_signals [LAST_SIGNAL] = { 0 }; static HtmlStyleChange html_document_restyle_node (HtmlDocument *document, DomNode *node, HtmlAtom *pseudo, gboolean recurse) { HtmlStyle *parent_style, *new_style; HtmlStyleChange style_change = HTML_STYLE_CHANGE_NONE, new_style_change; if (!node || !node->style || node->xmlnode->type == XML_HTML_DOCUMENT_NODE || node->xmlnode->type == XML_DOCUMENT_NODE || node->xmlnode->type == XML_DTD_NODE) return style_change; if (node->xmlnode->parent) parent_style = dom_Node__get_parentNode (node)->style; else parent_style = NULL; if (node->xmlnode->type == XML_TEXT_NODE) { g_assert (parent_style != NULL); html_style_ref (parent_style); if (node->style) html_style_unref (node->style); node->style = parent_style; } else { new_style = css_matcher_get_style (document, parent_style, node->xmlnode, pseudo); style_change = html_style_compare (node->style, new_style); if (style_change != HTML_STYLE_CHANGE_NONE) { html_style_ref (new_style); html_style_unref (node->style); node->style = new_style; } else html_style_unref (new_style); if (recurse) { for (node = dom_Node__get_firstChild (node); node; node = dom_Node__get_nextSibling (node)) { new_style_change = html_document_restyle_node (document, node, pseudo, recurse); if (new_style_change > style_change) style_change = new_style_change; } } } return style_change; } static void html_document_stylesheet_stream_close (const gchar *buffer, gint len, gpointer data) { CssStylesheet *sheet; HtmlDocument *document = HTML_DOCUMENT (data); HtmlStyleChange style_change; if (!buffer) return; sheet = css_parser_parse_stylesheet (buffer, len); document->stylesheets = g_slist_append (document->stylesheets, sheet); /* Restyle the document */ style_change = html_document_restyle_node (document, DOM_NODE (dom_Document__get_documentElement (document->dom_document)), NULL, TRUE); g_signal_emit (G_OBJECT (document), document_signals [STYLE_UPDATED], 0, DOM_NODE (dom_Document__get_documentElement (document->dom_document)), style_change); } static gboolean html_document_refresh_timeout (gpointer data) { RefreshData *rdata = (RefreshData *) data; g_signal_emit (G_OBJECT (rdata->doc), document_signals [LINK_CLICKED], 0, rdata->url); g_free (rdata->url); g_object_unref (rdata->doc); g_free (rdata); return FALSE; } static void html_document_node_inserted_traverser (HtmlDocument *document, DomNode *node) { if (dom_Node_hasChildNodes (node)) html_document_node_inserted_traverser (document, dom_Node__get_firstChild (node)); for (; node; node = dom_Node__get_nextSibling (node)) { HtmlStyle *style, *parent_style; /* First, check for some special nodes that may be of interest */ if (strcasecmp (node->xmlnode->name, "link") == 0) { gchar *str = xmlGetProp (node->xmlnode, "rel"); if (str && (strcasecmp (str, "stylesheet") == 0)) { gchar *url = xmlGetProp (node->xmlnode, "href"); if (url) { HtmlStream *stream = html_stream_buffer_new (html_document_stylesheet_stream_close, document); g_signal_emit (G_OBJECT (document), document_signals [REQUEST_URL], 0, url, stream); } g_free (url); } else if (str && (strcasecmp (str, "icon") == 0)) { gchar *url = xmlGetProp (node->xmlnode, "href"); if (url) { g_signal_emit (G_OBJECT (document), document_signals [REQUEST_ICON], 0, url); } g_free (url); } g_free (str); } else if (strcasecmp (node->xmlnode->name, "meta") == 0) { gchar *str = xmlGetProp (node->xmlnode, "http-equiv"); if (str && (strcasecmp (str, "content-type") == 0)) { } else if (str && (strcasecmp (str, "refresh") == 0)) { RefreshData *rdata; gchar *content = xmlGetProp (node->xmlnode, "content"); gchar *timestr; gchar *url; gint timeval; rdata = g_new0 (RefreshData, 1); rdata->doc = g_object_ref (document); if (strchr (content, ';')) { timestr = g_strndup (content, strlen (content) - strlen (strchr (content, ';'))); } else { timestr = g_strdup (content); } timeval = atoi (timestr); if (strchr (content, '=')) { url = g_strndup (content + (strlen (content) - strlen (strchr (content, '=')) + 1), strlen (strchr (content, '=')) + 1); } else { url = g_strdup (""); } rdata->url = g_strdup (url); g_timeout_add (timeval * 1000, (GSourceFunc) html_document_refresh_timeout, rdata); g_free (url); g_free (timestr); g_free (content); } g_free (str); } else if (node->xmlnode->type == XML_TEXT_NODE && node->xmlnode->parent && strcasecmp (node->xmlnode->parent->name, "option") == 0) { dom_html_option_element_new_character_data (DOM_HTML_OPTION_ELEMENT (dom_Node__get_parentNode (node))); } else if (node->xmlnode->type == XML_TEXT_NODE && node->xmlnode->parent && strcasecmp (node->xmlnode->parent->name, "textarea") == 0) { dom_HTMLTextAreaElement__set_defaultValue (DOM_HTML_TEXT_AREA_ELEMENT (dom_Node__get_parentNode (node)), node->xmlnode->content); } else if ((node->xmlnode->type == XML_TEXT_NODE || node->xmlnode->type == XML_COMMENT_NODE) && node->xmlnode->parent && strcasecmp (node->xmlnode->parent->name, "style") == 0) { CssStylesheet *ss; HtmlStyleChange style_change; ss = css_parser_parse_stylesheet (node->xmlnode->content, strlen (node->xmlnode->content)); document->stylesheets = g_slist_append (document->stylesheets, ss); /* Restyle the document */ style_change = html_document_restyle_node (document, DOM_NODE (dom_Document__get_documentElement (document->dom_document)), NULL, TRUE); g_signal_emit (G_OBJECT (document), document_signals [STYLE_UPDATED], 0, DOM_NODE (dom_Document__get_documentElement (document->dom_document)), style_change); } else if ((node->xmlnode->type == XML_TEXT_NODE || node->xmlnode->type == XML_COMMENT_NODE) && node->xmlnode->parent && strcasecmp (node->xmlnode->parent->name, "script") == 0) { /*g_print ("whee, we have a script: len %d\n", strlen (node->xmlnode->content));*/ } else if (node->xmlnode->type == XML_TEXT_NODE && node->xmlnode->parent && strcasecmp (node->xmlnode->parent->name, "title") == 0) { g_signal_emit (G_OBJECT (document), document_signals [TITLE_CHANGED], 0, node->xmlnode->content); } else if (strcasecmp (node->xmlnode->name, "img") == 0) { gchar *src; if ((src = xmlGetProp (node->xmlnode, "src"))) { HtmlImage *image; image = html_image_factory_get_image (document->image_factory, src); /* FIXME: What about freeing the data? */ g_object_set_data_full (G_OBJECT (node), "image", image, g_object_unref); xmlFree (src); } } else if (strcasecmp (node->xmlnode->name, "base") == 0) { gchar *href; if ((href = xmlGetProp (node->xmlnode, "href"))) { g_signal_emit (G_OBJECT (document), document_signals [SET_BASE], 0, href); xmlFree (href); } } if (DOM_IS_HTML_ELEMENT (node)) dom_html_element_parse_html_properties (DOM_HTML_ELEMENT (node), document); if (node->xmlnode->type == XML_HTML_DOCUMENT_NODE || node->xmlnode->type == XML_DOCUMENT_NODE || node->xmlnode->type == XML_DTD_NODE) return; if (node->xmlnode->parent) parent_style = dom_Node__get_parentNode (node)->style; else parent_style = NULL; if (node->xmlnode->type == XML_TEXT_NODE) { g_assert (parent_style != NULL); html_style_ref (parent_style); if (node->style) html_style_unref (node->style); node->style = parent_style; } else { style = css_matcher_get_style (document, parent_style, node->xmlnode, NULL); node->style = html_style_ref (style); } } } static void html_document_node_inserted (HtmlDocument *document, DomNode *node) { HtmlStyle *style, *parent_style; if (dom_Node__get_parentNode (node)) parent_style = dom_Node__get_parentNode (node)->style; else parent_style = NULL; if (node->xmlnode->type == XML_TEXT_NODE) { g_assert (parent_style != NULL); html_style_ref (parent_style); if (node->style) html_style_unref (node->style); node->style = parent_style; } else { style = css_matcher_get_style (document, parent_style, node->xmlnode, NULL); node->style = html_style_ref (style); } if (dom_Node_hasChildNodes (node)) html_document_node_inserted_traverser (document, dom_Node__get_firstChild (node)); g_signal_emit (G_OBJECT (document), document_signals [NODE_INSERTED], 0, node); } static void html_document_dom_event (DomEventListener *listener, DomEvent *event, HtmlDocument *document) { gchar *type = dom_Event__get_type (event); DomNode *node = DOM_NODE (dom_Event__get_target (event)); if (strcmp (type, "DOMNodeInserted") == 0) { html_document_node_inserted (document, node); } else if (strcmp (type, "DOMNodeRemoved") == 0) { g_signal_emit (G_OBJECT (document), document_signals [NODE_REMOVED], 0, node); } else if (strcmp (type, "DOMCharacterDataModified") == 0) { g_signal_emit (G_OBJECT (document), document_signals [TEXT_UPDATED], 0, node); } else if (strcmp (type, "StyleChanged") == 0) { g_signal_emit (G_OBJECT (document), document_signals [STYLE_UPDATED], 0, node, dom_StyleEvent__get_styleChange (DOM_STYLE_EVENT (event))); } else if (strcmp (type, "mousedown") == 0) { gboolean return_value = FALSE; g_signal_emit (G_OBJECT (document), document_signals [DOM_MOUSE_DOWN], 0, event, &return_value); if (return_value) dom_Event_preventDefault (event); } else if (strcmp (type, "mouseup") == 0) { gboolean return_value = FALSE; g_signal_emit (G_OBJECT (document), document_signals [DOM_MOUSE_UP], 0, event, &return_value); if (return_value) dom_Event_preventDefault (event); } else if (strcmp (type, "click") == 0) { gboolean return_value = FALSE; g_signal_emit (G_OBJECT (document), document_signals [DOM_MOUSE_CLICK], 0, event, &return_value); if (return_value) dom_Event_preventDefault (event); } else if (strcmp (type, "mouseover") == 0) { gboolean return_value = FALSE; g_signal_emit (G_OBJECT (document), document_signals [DOM_MOUSE_OVER], 0, event, &return_value); if (return_value) dom_Event_preventDefault (event); } else if (strcmp (type, "mouseout") == 0) { gboolean return_value = FALSE; g_signal_emit (G_OBJECT (document), document_signals [DOM_MOUSE_OUT], 0, event, &return_value); if (return_value) dom_Event_preventDefault (event); } else if (strcmp (type, "submit") == 0) { gchar *action, *method, *encoding; action = dom_HTMLFormElement__get_action (DOM_HTML_FORM_ELEMENT(node)); method = dom_HTMLFormElement__get_method (DOM_HTML_FORM_ELEMENT(node)); encoding = dom_HTMLFormElement__get_encoding (DOM_HTML_FORM_ELEMENT(node)); g_signal_emit (G_OBJECT (document), document_signals [SUBMIT], 0, action, method, encoding); if (action) xmlFree (action); if (method) xmlFree (method); if (encoding) g_free (encoding); } g_free (type); } static void html_document_parsed_document_node (HtmlParser *parser, DomDocument *dom_document, HtmlDocument *document) { DomEventListener *listener; listener = g_object_get_data (G_OBJECT (document), "dom-event-listener"); if (listener) return; listener = dom_event_listener_signal_new (); g_signal_connect (G_OBJECT (listener), "event", G_CALLBACK (html_document_dom_event), document); g_object_set_data (G_OBJECT (document), "dom-event-listener", listener); dom_EventTarget_addEventListener (DOM_EVENT_TARGET (document->dom_document), "DOMNodeInserted", listener, FALSE); dom_EventTarget_addEventListener (DOM_EVENT_TARGET (document->dom_document), "DOMNodeRemoved", listener, FALSE); dom_EventTarget_addEventListener (DOM_EVENT_TARGET (document->dom_document), "DOMCharacterDataModified", listener, FALSE); dom_EventTarget_addEventListener (DOM_EVENT_TARGET (document->dom_document), "StyleChanged", listener, FALSE); dom_EventTarget_addEventListener (DOM_EVENT_TARGET (document->dom_document), "mousedown", listener, FALSE); dom_EventTarget_addEventListener (DOM_EVENT_TARGET (document->dom_document), "mouseup", listener, FALSE); dom_EventTarget_addEventListener (DOM_EVENT_TARGET (document->dom_document), "click", listener, FALSE); dom_EventTarget_addEventListener (DOM_EVENT_TARGET (document->dom_document), "mouseover", listener, FALSE); dom_EventTarget_addEventListener (DOM_EVENT_TARGET (document->dom_document), "mouseout", listener, FALSE); dom_EventTarget_addEventListener (DOM_EVENT_TARGET (document->dom_document), "submit", listener, FALSE); } static void html_document_done_parsing (HtmlParser *parser, HtmlDocument *document) { } static void html_document_new_node (HtmlParser *parser, DomNode *node, HtmlDocument *document) { html_document_node_inserted_traverser (document, node); g_signal_emit (G_OBJECT (document), document_signals [NODE_INSERTED], 0, node); } static void html_document_finalize (GObject *object) { HtmlDocument *document = HTML_DOCUMENT (object); html_document_clear (document); if (document->parser) g_object_unref (G_OBJECT (document->parser)); parent_class->finalize (object); } static void html_document_class_init (HtmlDocumentClass *klass) { GObjectClass *object_class; object_class = (GObjectClass *)klass; object_class->finalize = html_document_finalize; parent_class = g_type_class_peek_parent (object_class); document_signals [REQUEST_URL] = g_signal_new ("request_url", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (HtmlDocumentClass, request_url), NULL, NULL, html_marshal_VOID__STRING_OBJECT, G_TYPE_NONE, 2, G_TYPE_STRING, HTML_TYPE_STREAM); document_signals [REQUEST_ICON] = g_signal_new ("request_icon", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (HtmlDocumentClass, request_icon), NULL, NULL, g_cclosure_marshal_VOID__STRING, G_TYPE_NONE, 1, G_TYPE_STRING); document_signals [LINK_CLICKED] = g_signal_new ("link_clicked", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (HtmlDocumentClass, link_clicked), NULL, NULL, g_cclosure_marshal_VOID__STRING, G_TYPE_NONE, 1, G_TYPE_STRING); document_signals [SET_BASE] = g_signal_new ("set_base", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (HtmlDocumentClass, set_base), NULL, NULL, g_cclosure_marshal_VOID__STRING, G_TYPE_NONE, 1, G_TYPE_STRING); document_signals [TITLE_CHANGED] = g_signal_new ("title_changed", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (HtmlDocumentClass, title_changed), NULL, NULL, g_cclosure_marshal_VOID__STRING, G_TYPE_NONE, 1, G_TYPE_STRING); document_signals [SUBMIT] = g_signal_new ("submit", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (HtmlDocumentClass, submit), NULL, NULL, html_marshal_VOID__STRING_STRING_STRING, G_TYPE_NONE, 3, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING); document_signals [NODE_INSERTED] = g_signal_new ("node_inserted", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (HtmlDocumentClass, node_inserted), NULL, NULL, g_cclosure_marshal_VOID__OBJECT, G_TYPE_NONE, 1, DOM_TYPE_NODE); document_signals [NODE_REMOVED] = g_signal_new ("node_removed", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (HtmlDocumentClass, node_removed), NULL, NULL, g_cclosure_marshal_VOID__OBJECT, G_TYPE_NONE, 1, DOM_TYPE_NODE); document_signals [TEXT_UPDATED] = g_signal_new ("text_updated", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (HtmlDocumentClass, text_updated), NULL, NULL, g_cclosure_marshal_VOID__OBJECT, G_TYPE_NONE, 1, DOM_TYPE_NODE); document_signals [STYLE_UPDATED] = g_signal_new ("style_updated", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (HtmlDocumentClass, style_updated), NULL, NULL, html_marshal_VOID__OBJECT_INT, G_TYPE_NONE, 2, DOM_TYPE_NODE, G_TYPE_INT); document_signals [RELAYOUT_NODE] = g_signal_new ("relayout_node", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (HtmlDocumentClass, relayout_node), NULL, NULL, g_cclosure_marshal_VOID__OBJECT, G_TYPE_NONE, 1, DOM_TYPE_NODE); document_signals [REPAINT_NODE] = g_signal_new ("repaint_node", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (HtmlDocumentClass, repaint_node), NULL, NULL, g_cclosure_marshal_VOID__OBJECT, G_TYPE_NONE, 1, DOM_TYPE_NODE); document_signals [DOM_MOUSE_DOWN] = g_signal_new ("dom_mouse_down", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (HtmlDocumentClass, dom_mouse_down), NULL, NULL, html_marshal_BOOLEAN__OBJECT, G_TYPE_BOOLEAN, 1, DOM_TYPE_MOUSE_EVENT); document_signals [DOM_MOUSE_UP] = g_signal_new ("dom_mouse_up", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (HtmlDocumentClass, dom_mouse_up), NULL, NULL, html_marshal_BOOLEAN__OBJECT, G_TYPE_BOOLEAN, 1, DOM_TYPE_MOUSE_EVENT); document_signals [DOM_MOUSE_CLICK] = g_signal_new ("dom_mouse_click", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (HtmlDocumentClass, dom_mouse_click), NULL, NULL, html_marshal_BOOLEAN__OBJECT, G_TYPE_BOOLEAN, 1, DOM_TYPE_MOUSE_EVENT); document_signals [DOM_MOUSE_OVER] = g_signal_new ("dom_mouse_over", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (HtmlDocumentClass, dom_mouse_over), NULL, NULL, html_marshal_BOOLEAN__OBJECT, G_TYPE_BOOLEAN, 1, DOM_TYPE_MOUSE_EVENT); document_signals [DOM_MOUSE_OUT] = g_signal_new ("dom_mouse_out", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (HtmlDocumentClass, dom_mouse_out), NULL, NULL, html_marshal_BOOLEAN__OBJECT, G_TYPE_BOOLEAN, 1, DOM_TYPE_MOUSE_EVENT); } static void html_document_request_image (HtmlImageFactory *image_factory, const gchar *uri, HtmlStream *stream, HtmlDocument *doc) { g_signal_emit (G_OBJECT (doc), document_signals [REQUEST_URL], 0, uri, stream); } static void html_document_init (HtmlDocument *document) { document->stylesheets = NULL; document->image_factory = html_image_factory_new (); g_signal_connect (G_OBJECT (document->image_factory), "request_image", G_CALLBACK (html_document_request_image), document); } GType html_document_get_type (void) { static GType type = 0; if (!type) { static const GTypeInfo info = { sizeof (HtmlDocumentClass), NULL, /* base_init */ NULL, /* base_finalize */ (GClassInitFunc) html_document_class_init, NULL, /* class_finalize */ NULL, /* class_data */ sizeof (HtmlDocument), 0, /* n_preallocs */ (GInstanceInitFunc) html_document_init, }; type = g_type_register_static (G_TYPE_OBJECT, "HtmlDocument", &info, 0); } return type; } HtmlDocument * html_document_new (void) { HtmlDocument *document = HTML_DOCUMENT (g_object_new (HTML_TYPE_DOCUMENT, NULL)); GtkHtmlContext *context = gtk_html_context_get (); context->documents = g_slist_append (context->documents, document); return document; } gboolean html_document_open_stream (HtmlDocument *document, const gchar *mime_type) { g_return_val_if_fail (document != NULL, FALSE); g_return_val_if_fail (HTML_IS_DOCUMENT (document), FALSE); g_return_val_if_fail (mime_type != NULL, FALSE); html_document_clear (document); if (strcasecmp (mime_type, "text/html") == 0) { if (document->parser) g_object_unref (document->parser); document->parser = html_parser_new (document, HTML_PARSER_TYPE_HTML); document->current_stream = document->parser->stream; g_signal_connect (document->parser, "new_node", (GCallback) html_document_new_node, document); g_signal_connect (document->parser, "parsed_document_node", (GCallback) html_document_parsed_document_node, document); g_signal_connect (document->parser, "done_parsing", (GCallback) html_document_done_parsing, document); document->state = HTML_DOCUMENT_STATE_PARSING; return TRUE; } return FALSE; } void html_document_write_stream (HtmlDocument *document, const gchar *buffer, gint len) { g_return_if_fail (document != NULL); g_return_if_fail (HTML_IS_DOCUMENT (document)); g_return_if_fail (document->current_stream != NULL); g_return_if_fail (buffer != NULL); if (len < 0) len = strlen (buffer); html_stream_write (document->current_stream, buffer, len); } void html_document_close_stream (HtmlDocument *document) { g_return_if_fail (document != NULL); g_return_if_fail (HTML_IS_DOCUMENT (document)); g_return_if_fail (document->current_stream != NULL); html_stream_close (document->current_stream); document->state = HTML_DOCUMENT_STATE_DONE; g_signal_emit (G_OBJECT (document), document_signals [RELAYOUT_NODE], 0, DOM_NODE (dom_Document__get_documentElement (document->dom_document))); } void html_document_clear (HtmlDocument *document) { DomNode *node; DomNode *tmp_node; GSList *ss; xmlNodePtr top_node; DomEventListener *listener; if (!document->dom_document) return; /* Reset active, focused and hover nodes */ html_document_update_hover_node (document, NULL); html_document_update_active_node (document, NULL); html_document_update_focus_element (document, NULL); listener = g_object_get_data (G_OBJECT (document), "dom-event-listener"); if (listener) { g_object_set_data (G_OBJECT (document), "dom-event-listener", NULL); dom_EventTarget_removeEventListener (DOM_EVENT_TARGET (document->dom_document), "DOMNodeInserted", listener, FALSE); dom_EventTarget_removeEventListener (DOM_EVENT_TARGET (document->dom_document), "DOMNodeRemoved", listener, FALSE); dom_EventTarget_removeEventListener (DOM_EVENT_TARGET (document->dom_document), "DOMCharacterDataModified", listener, FALSE); dom_EventTarget_removeEventListener (DOM_EVENT_TARGET (document->dom_document), "StyleChanged", listener, FALSE); dom_EventTarget_removeEventListener (DOM_EVENT_TARGET (document->dom_document), "mousedown", listener, FALSE); dom_EventTarget_removeEventListener (DOM_EVENT_TARGET (document->dom_document), "mouseup", listener, FALSE); dom_EventTarget_removeEventListener (DOM_EVENT_TARGET (document->dom_document), "click", listener, FALSE); dom_EventTarget_removeEventListener (DOM_EVENT_TARGET (document->dom_document), "mouseover", listener, FALSE); dom_EventTarget_removeEventListener (DOM_EVENT_TARGET (document->dom_document), "mouseout", listener, FALSE); dom_EventTarget_removeEventListener (DOM_EVENT_TARGET (document->dom_document), "submit", listener, FALSE); g_object_unref (listener); } node = dom_Node__get_firstChild (DOM_NODE (document->dom_document)); while (node) { tmp_node = node; top_node = node->xmlnode; node = dom_Node__get_nextSibling (node); if (G_OBJECT (document)->ref_count != 0) /* Not called from html_document_finalize */ g_signal_emit (G_OBJECT (document), document_signals [NODE_REMOVED], 0, tmp_node); dom_Node_removeChild (DOM_NODE (document->dom_document), tmp_node, NULL); g_object_unref (tmp_node); } xmlFreeNode (top_node); g_object_unref (document->dom_document); for (ss = document->stylesheets; ss; ss = ss->next) { CssStylesheet *sheet = ss->data; css_stylesheet_destroy (sheet); } g_slist_free (document->stylesheets); document->dom_document = NULL; document->stylesheets = NULL; } void html_document_update_active_node (HtmlDocument *document, DomNode *node) { HtmlAtom active_pseudo[] = { HTML_ATOM_ACTIVE, HTML_ATOM_HOVER, HTML_ATOM_FOCUS, 0}; HtmlAtom hover_pseudo[] = { HTML_ATOM_HOVER, 0}; HtmlStyleChange new_style_change; HtmlStyleChange style_change = HTML_STYLE_CHANGE_NONE; DomNode *tmp_node, *top_restyled_node = NULL; tmp_node = document->active_node; if (tmp_node) { while (tmp_node && tmp_node->style) { if (tmp_node->style->has_active_style) { top_restyled_node = tmp_node; style_change = html_document_restyle_node (document, tmp_node, hover_pseudo, TRUE); } tmp_node = dom_Node__get_parentNode (tmp_node); } if (top_restyled_node) g_signal_emit (G_OBJECT (document), document_signals [STYLE_UPDATED], 0, top_restyled_node, style_change); } tmp_node = node; top_restyled_node = NULL; while (tmp_node && tmp_node->style) { if (tmp_node->style->has_active_style) { top_restyled_node = tmp_node; if ((new_style_change = html_document_restyle_node (document, tmp_node, active_pseudo, FALSE)) > style_change) style_change = new_style_change; } tmp_node = dom_Node__get_parentNode (tmp_node); } if (top_restyled_node) g_signal_emit (G_OBJECT (document), document_signals [STYLE_UPDATED], 0, top_restyled_node, style_change); document->active_node = node; } void html_document_update_focus_element (HtmlDocument *document, DomElement *element) { DomNode *tmp_node = NULL, *top_restyled_node = NULL; HtmlAtom focus_pseudo[3]; HtmlStyleChange style_change = HTML_STYLE_CHANGE_NONE; HtmlStyleChange new_style_change; if (document->focus_element) tmp_node = DOM_NODE (document->focus_element); focus_pseudo[0] = HTML_ATOM_FOCUS; focus_pseudo[1] = 0; focus_pseudo[2] = 0; if (tmp_node) { while (tmp_node && tmp_node->style) { if (tmp_node->style->has_focus_style) { top_restyled_node = tmp_node; style_change = html_document_restyle_node (document, tmp_node, NULL, TRUE); } tmp_node = dom_Node__get_parentNode (tmp_node); } if (top_restyled_node) g_signal_emit (G_OBJECT (document), document_signals [STYLE_UPDATED], 0, top_restyled_node, style_change); } if (element) { tmp_node = DOM_NODE (element); } top_restyled_node = NULL; while (tmp_node && tmp_node->style) { if (tmp_node->style->has_focus_style) { top_restyled_node = tmp_node; if ((new_style_change = html_document_restyle_node (document, tmp_node, focus_pseudo, FALSE)) > style_change) style_change = new_style_change; } tmp_node = dom_Node__get_parentNode (tmp_node); } if (top_restyled_node) { if ((new_style_change = html_document_restyle_node (document, top_restyled_node, focus_pseudo, TRUE)) > style_change) style_change = new_style_change; g_signal_emit (G_OBJECT (document), document_signals [STYLE_UPDATED], 0, top_restyled_node, style_change); } document->focus_element = element; } void html_document_update_hover_node (HtmlDocument *document, DomNode *node) { DomNode *tmp_node, *top_restyled_node = NULL; HtmlAtom hover_pseudo[] = { HTML_ATOM_HOVER, 0 }; HtmlStyleChange style_change = HTML_STYLE_CHANGE_NONE; HtmlStyleChange new_style_change; tmp_node = document->hover_node; if (tmp_node) { while (tmp_node && tmp_node->style) { if (tmp_node->style->has_hover_style) { top_restyled_node = tmp_node; style_change = html_document_restyle_node (document, tmp_node, NULL, TRUE); } tmp_node = dom_Node__get_parentNode (tmp_node); } if (top_restyled_node) g_signal_emit (G_OBJECT (document), document_signals [STYLE_UPDATED], 0, top_restyled_node, style_change); } tmp_node = node; top_restyled_node = NULL; while (tmp_node && tmp_node->style) { if (tmp_node->style->has_hover_style) { top_restyled_node = tmp_node; if ((new_style_change = html_document_restyle_node (document, tmp_node, hover_pseudo, FALSE)) > style_change) style_change = new_style_change; } tmp_node = dom_Node__get_parentNode (tmp_node); } if (top_restyled_node) { if ((new_style_change = html_document_restyle_node (document, top_restyled_node, hover_pseudo, TRUE)) > style_change) style_change = new_style_change; g_signal_emit (G_OBJECT (document), document_signals [STYLE_UPDATED], 0, top_restyled_node, style_change); } document->hover_node = node; } static DomNode * find_anchor_helper (DomNode *node, const gchar *anchor) { DomNode *child; if (DOM_IS_HTML_ANCHOR_ELEMENT (node)) { gchar *name; if (dom_Element_hasAttribute (DOM_ELEMENT (node), "id")) name = dom_Element_getAttribute (DOM_ELEMENT (node), "id"); else if (dom_Element_hasAttribute (DOM_ELEMENT (node), "name")) name = dom_Element_getAttribute (DOM_ELEMENT (node), "name"); else name = NULL; if (name) { if (strcasecmp (name, anchor) == 0) { xmlFree (name); return node; } xmlFree (name); } } child = dom_Node__get_firstChild (node); while (child) { DomNode *result = find_anchor_helper (child, anchor); if (result != NULL) return result; child = dom_Node__get_nextSibling (child); } return NULL; } DomNode * html_document_find_anchor (HtmlDocument *doc, const gchar *anchor) { if (doc->dom_document) return find_anchor_helper (DOM_NODE (doc->dom_document), anchor); else return NULL; }