372 lines
9.7 KiB
C
372 lines
9.7 KiB
C
/*
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* Copyright 2004 James Bursa <bursa@users.sourceforge.net>
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*
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* This file is part of NetSurf, http://www.netsurf-browser.org/
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*
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* NetSurf is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* NetSurf is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* \file
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* Private data for text/html content.
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*/
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#ifndef NETSURF_HTML_PRIVATE_H
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#define NETSURF_HTML_PRIVATE_H
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#include <dom/bindings/hubbub/parser.h>
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#include "netsurf/types.h"
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#include "content/content_protected.h"
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#include "content/handlers/css/utils.h"
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struct gui_layout_table;
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struct scrollbar_msg_data;
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struct content_redraw_data;
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struct selection;
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typedef enum {
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HTML_DRAG_NONE, /** No drag */
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HTML_DRAG_SELECTION, /** Own; Text selection */
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HTML_DRAG_SCROLLBAR, /** Not own; drag in scrollbar widget */
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HTML_DRAG_TEXTAREA_SELECTION, /** Not own; drag in textarea widget */
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HTML_DRAG_TEXTAREA_SCROLLBAR, /** Not own; drag in textarea widget */
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HTML_DRAG_CONTENT_SELECTION, /** Not own; drag in child content */
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HTML_DRAG_CONTENT_SCROLL /** Not own; drag in child content */
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} html_drag_type;
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/**
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* For drags we don't own
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*/
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union html_drag_owner {
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bool no_owner;
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struct box *content;
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struct scrollbar *scrollbar;
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struct box *textarea;
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};
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typedef enum {
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HTML_SELECTION_NONE, /** No selection */
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HTML_SELECTION_TEXTAREA, /** Selection in one of our textareas */
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HTML_SELECTION_SELF, /** Selection in this html content */
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HTML_SELECTION_CONTENT /** Selection in child content */
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} html_selection_type;
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/**
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* For getting at selections in this content or things in this content
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*/
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union html_selection_owner {
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bool none;
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struct box *textarea;
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struct box *content;
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};
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typedef enum {
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HTML_FOCUS_SELF, /**< Focus is our own */
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HTML_FOCUS_CONTENT, /**< Focus belongs to child content */
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HTML_FOCUS_TEXTAREA /**< Focus belongs to textarea */
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} html_focus_type;
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/**
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* For directing input
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*/
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union html_focus_owner {
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bool self;
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struct box *textarea;
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struct box *content;
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};
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/**
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* Data specific to CONTENT_HTML.
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*/
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typedef struct html_content {
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struct content base;
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dom_hubbub_parser *parser; /**< Parser object handle */
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bool parse_completed; /**< Whether the parse has been completed */
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bool conversion_begun; /**< Whether or not the conversion has begun */
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/** Document tree */
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dom_document *document;
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/** Quirkyness of document */
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dom_document_quirks_mode quirks;
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/** Encoding of source, NULL if unknown. */
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char *encoding;
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/** Source of encoding information. */
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dom_hubbub_encoding_source encoding_source;
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/** Base URL (may be a copy of content->url). */
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struct nsurl *base_url;
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/** Base target */
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char *base_target;
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/** Content has been aborted in the LOADING state */
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bool aborted;
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/** Whether a meta refresh has been handled */
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bool refresh;
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/** Whether a layout (reflow) is in progress */
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bool reflowing;
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/** Whether an initial layout has been done */
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bool had_initial_layout;
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/** Whether scripts are enabled for this content */
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bool enable_scripting;
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/* Title element node */
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dom_node *title;
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/** A talloc context purely for the render box tree */
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int *bctx;
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/** A context pointer for the box conversion, NULL if no conversion
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* is in progress.
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*/
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void *box_conversion_context;
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/** Box tree, or NULL. */
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struct box *layout;
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/** Document background colour. */
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colour background_colour;
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/** Font callback table */
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const struct gui_layout_table *font_func;
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/** Number of entries in scripts */
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unsigned int scripts_count;
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/** Scripts */
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struct html_script *scripts;
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/** javascript thread in use */
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struct jsthread *jsthread;
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/** Number of entries in stylesheet_content. */
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unsigned int stylesheet_count;
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/** Stylesheets. Each may be NULL. */
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struct html_stylesheet *stylesheets;
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/**< Style selection context */
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css_select_ctx *select_ctx;
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/**< Style selection media specification */
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css_media media;
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/** CSS length conversion context for document. */
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css_unit_ctx unit_len_ctx;
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/**< Universal selector */
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lwc_string *universal;
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/** Number of entries in object_list. */
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unsigned int num_objects;
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/** List of objects. */
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struct content_html_object *object_list;
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/** Forms, in reverse order to document. */
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struct form *forms;
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/** Hash table of imagemaps. */
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struct imagemap **imagemaps;
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/** Browser window containing this document, or NULL if not open. */
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struct browser_window *bw;
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/** Frameset information */
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struct content_html_frames *frameset;
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/** Inline frame information */
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struct content_html_iframe *iframe;
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/** Content of type CONTENT_HTML containing this, or NULL if not an
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* object within a page. */
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struct html_content *page;
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/** Current drag type */
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html_drag_type drag_type;
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/** Widget capturing all mouse events */
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union html_drag_owner drag_owner;
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/** Current selection state */
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html_selection_type selection_type;
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/** Current selection owner */
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union html_selection_owner selection_owner;
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/** Current input focus target type */
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html_focus_type focus_type;
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/** Current input focus target */
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union html_focus_owner focus_owner;
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/** HTML content's own text selection object */
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struct selection *sel;
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/**
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* Open core-handled form SELECT menu, or NULL if none
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* currently open.
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*/
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struct form_control *visible_select_menu;
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} html_content;
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/**
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* Render padding and margin box outlines in html_redraw().
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*/
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extern bool html_redraw_debug;
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/* in html/html.c */
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/**
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* redraw a box
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*
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* \param htmlc HTML content
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* \param box The box to redraw.
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*/
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void html__redraw_a_box(html_content *htmlc, struct box *box);
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/**
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* Complete conversion of an HTML document
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*
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* \param htmlc Content to convert
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*/
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void html_finish_conversion(html_content *htmlc);
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/**
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* Test if an HTML content conversion can begin
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*
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* \param htmlc html content to test
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* \return true iff the html content conversion can begin
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*/
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bool html_can_begin_conversion(html_content *htmlc);
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/**
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* Begin conversion of an HTML document
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*
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* \param htmlc Content to convert
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*/
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bool html_begin_conversion(html_content *htmlc);
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/**
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* execute some text as a script element
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*/
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bool html_exec(struct content *c, const char *src, size_t srclen);
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/**
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* Attempt script execution for defer and async scripts
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*
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* execute scripts using algorithm found in:
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* http://www.whatwg.org/specs/web-apps/current-work/multipage/scripting-1.html#the-script-element
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*
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* \param htmlc html content.
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* \param allow_defer allow deferred execution, if not, only async scripts.
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* \return NSERROR_OK error code.
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*/
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nserror html_script_exec(html_content *htmlc, bool allow_defer);
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/**
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* Free all script resources and references for a html content.
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*
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* \param htmlc html content.
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* \return NSERROR_OK or error code.
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*/
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nserror html_script_free(html_content *htmlc);
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/**
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* Check if any of the scripts loaded were insecure
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*/
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bool html_saw_insecure_scripts(html_content *htmlc);
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/**
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* Complete the HTML content state machine *iff* all scripts are finished
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*/
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nserror html_proceed_to_done(html_content *html);
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/* in html/redraw.c */
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bool html_redraw(struct content *c, struct content_redraw_data *data,
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const struct rect *clip, const struct redraw_context *ctx);
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/* in html/redraw_border.c */
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bool html_redraw_borders(struct box *box, int x_parent, int y_parent,
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int p_width, int p_height, const struct rect *clip, float scale,
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const struct redraw_context *ctx);
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bool html_redraw_inline_borders(struct box *box, struct rect b,
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const struct rect *clip, float scale, bool first, bool last,
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const struct redraw_context *ctx);
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/* in html/script.c */
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dom_hubbub_error html_process_script(void *ctx, dom_node *node);
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/* in html/forms.c */
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struct form *html_forms_get_forms(const char *docenc, dom_html_document *doc);
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struct form_control *html_forms_get_control_for_node(struct form *forms,
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dom_node *node);
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/* in html/css_fetcher.c */
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/**
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* Register the fetcher for the pseudo x-ns-css scheme.
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*
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* \return NSERROR_OK on successful registration or error code on failure.
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*/
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nserror html_css_fetcher_register(void);
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nserror html_css_fetcher_add_item(dom_string *data, struct nsurl *base_url,
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uint32_t *key);
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/* Events */
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/**
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* Construct an event and fire it at the DOM
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*
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*/
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bool fire_generic_dom_event(dom_string *type, dom_node *target,
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bool bubbles, bool cancelable);
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/**
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* Construct a keyboard event and fire it at the DOM
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*/
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bool fire_dom_keyboard_event(dom_string *type, dom_node *target,
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bool bubbles, bool cancelable, uint32_t key);
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/* Useful dom_string pointers */
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struct dom_string;
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extern struct dom_string *html_dom_string_map;
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extern struct dom_string *html_dom_string_id;
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extern struct dom_string *html_dom_string_name;
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extern struct dom_string *html_dom_string_area;
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extern struct dom_string *html_dom_string_a;
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extern struct dom_string *html_dom_string_nohref;
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extern struct dom_string *html_dom_string_href;
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extern struct dom_string *html_dom_string_target;
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extern struct dom_string *html_dom_string_shape;
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extern struct dom_string *html_dom_string_default;
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extern struct dom_string *html_dom_string_rect;
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extern struct dom_string *html_dom_string_rectangle;
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extern struct dom_string *html_dom_string_coords;
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extern struct dom_string *html_dom_string_circle;
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extern struct dom_string *html_dom_string_poly;
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extern struct dom_string *html_dom_string_polygon;
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extern struct dom_string *html_dom_string_text_javascript;
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extern struct dom_string *html_dom_string_type;
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extern struct dom_string *html_dom_string_src;
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#endif
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