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Diffstat (limited to 'content/handlers/html/private.h')
| -rw-r--r-- | content/handlers/html/private.h | 386 |
1 files changed, 386 insertions, 0 deletions
diff --git a/content/handlers/html/private.h b/content/handlers/html/private.h new file mode 100644 index 000000000..134acff6d --- /dev/null +++ b/content/handlers/html/private.h @@ -0,0 +1,386 @@ +/* + * Copyright 2004 James Bursa <bursa@users.sourceforge.net> + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * NetSurf is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * NetSurf is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +/** + * \file + * Private data for text/html content. + */ + +#ifndef NETSURF_HTML_PRIVATE_H +#define NETSURF_HTML_PRIVATE_H + +#include <libcss/libcss.h> +#include <dom/bindings/hubbub/parser.h> + +#include "netsurf/types.h" +#include "content/content_protected.h" +#include "desktop/selection.h" + + +struct gui_layout_table; +struct scrollbar_msg_data; +struct content_redraw_data; + +typedef enum { + HTML_DRAG_NONE, /** No drag */ + HTML_DRAG_SELECTION, /** Own; Text selection */ + HTML_DRAG_SCROLLBAR, /** Not own; drag in scrollbar widget */ + HTML_DRAG_TEXTAREA_SELECTION, /** Not own; drag in textarea widget */ + HTML_DRAG_TEXTAREA_SCROLLBAR, /** Not own; drag in textarea widget */ + HTML_DRAG_CONTENT_SELECTION, /** Not own; drag in child content */ + HTML_DRAG_CONTENT_SCROLL /** Not own; drag in child content */ +} html_drag_type; + +/** + * For drags we don't own + */ +union html_drag_owner { + bool no_owner; + struct box *content; + struct scrollbar *scrollbar; + struct box *textarea; +}; + +typedef enum { + HTML_SELECTION_NONE, /** No selection */ + HTML_SELECTION_TEXTAREA, /** Selection in one of our textareas */ + HTML_SELECTION_SELF, /** Selection in this html content */ + HTML_SELECTION_CONTENT /** Selection in child content */ +} html_selection_type; + +/** + * For getting at selections in this content or things in this content + */ +union html_selection_owner { + bool none; + struct box *textarea; + struct box *content; +}; + +typedef enum { + HTML_FOCUS_SELF, /**< Focus is our own */ + HTML_FOCUS_CONTENT, /**< Focus belongs to child content */ + HTML_FOCUS_TEXTAREA /**< Focus belongs to textarea */ +} html_focus_type; + +/** + * For directing input + */ +union html_focus_owner { + bool self; + struct box *textarea; + struct box *content; +}; + +/** + * Data specific to CONTENT_HTML. + */ +typedef struct html_content { + struct content base; + + dom_hubbub_parser *parser; /**< Parser object handle */ + bool parse_completed; /**< Whether the parse has been completed */ + bool conversion_begun; /**< Whether or not the conversion has begun */ + + /** Document tree */ + dom_document *document; + /** Quirkyness of document */ + dom_document_quirks_mode quirks; + + /** Encoding of source, NULL if unknown. */ + char *encoding; + /** Source of encoding information. */ + dom_hubbub_encoding_source encoding_source; + + /** Base URL (may be a copy of content->url). */ + nsurl *base_url; + /** Base target */ + char *base_target; + + /** CSS length conversion context for document. */ + nscss_len_ctx len_ctx; + + /** Content has been aborted in the LOADING state */ + bool aborted; + + /** Whether a meta refresh has been handled */ + bool refresh; + + /** Whether a layout (reflow) is in progress */ + bool reflowing; + + /** Whether an initial layout has been done */ + bool had_initial_layout; + + /** Whether scripts are enabled for this content */ + bool enable_scripting; + + /* Title element node */ + dom_node *title; + + /** A talloc context purely for the render box tree */ + int *bctx; + /** A context pointer for the box conversion, NULL if no conversion + * is in progress. + */ + void *box_conversion_context; + /** Box tree, or NULL. */ + struct box *layout; + /** Document background colour. */ + colour background_colour; + + /** Font callback table */ + const struct gui_layout_table *font_func; + + /** Number of entries in scripts */ + unsigned int scripts_count; + /** Scripts */ + struct html_script *scripts; + /** javascript thread in use */ + struct jsthread *jsthread; + + /** Number of entries in stylesheet_content. */ + unsigned int stylesheet_count; + /** Stylesheets. Each may be NULL. */ + struct html_stylesheet *stylesheets; + /**< Style selection context */ + css_select_ctx *select_ctx; + /**< Style selection media specification */ + css_media media; + /**< Universal selector */ + lwc_string *universal; + + /** Number of entries in object_list. */ + unsigned int num_objects; + /** List of objects. */ + struct content_html_object *object_list; + /** Forms, in reverse order to document. */ + struct form *forms; + /** Hash table of imagemaps. */ + struct imagemap **imagemaps; + + /** Browser window containing this document, or NULL if not open. */ + struct browser_window *bw; + + /** Frameset information */ + struct content_html_frames *frameset; + + /** Inline frame information */ + struct content_html_iframe *iframe; + + /** Content of type CONTENT_HTML containing this, or NULL if not an + * object within a page. */ + struct html_content *page; + + /** Current drag type */ + html_drag_type drag_type; + /** Widget capturing all mouse events */ + union html_drag_owner drag_owner; + + /** Current selection state */ + html_selection_type selection_type; + /** Current selection owner */ + union html_selection_owner selection_owner; + + /** Current input focus target type */ + html_focus_type focus_type; + /** Current input focus target */ + union html_focus_owner focus_owner; + + /** HTML content's own text selection object */ + struct selection sel; + + /** + * Open core-handled form SELECT menu, or NULL if none + * currently open. + */ + struct form_control *visible_select_menu; + + /** Context for free text search, or NULL if none */ + struct search_context *search; + /** Search string or NULL */ + char *search_string; + +} html_content; + +/** + * Render padding and margin box outlines in html_redraw(). + */ +extern bool html_redraw_debug; + + +/* in html/html.c */ + +/** + * redraw a box + * + * \param htmlc HTML content + * \param box The box to redraw. + */ +void html__redraw_a_box(html_content *htmlc, struct box *box); + + +/** + * Get the browser window containing an HTML content + * + * \param c HTML content + * \return the browser window + */ +struct browser_window *html_get_browser_window(struct content *c); + + +/** + * Complete conversion of an HTML document + * + * \param htmlc Content to convert + */ +void html_finish_conversion(html_content *htmlc); + + +/** + * Test if an HTML content conversion can begin + * + * \param htmlc html content to test + * \return true iff the html content conversion can begin + */ +bool html_can_begin_conversion(html_content *htmlc); + + +/** + * Begin conversion of an HTML document + * + * \param htmlc Content to convert + */ +bool html_begin_conversion(html_content *htmlc); + + +/** + * execute some text as a script element + */ +bool html_exec(struct content *c, const char *src, size_t srclen); + + +/** + * Attempt script execution for defer and async scripts + * + * execute scripts using algorithm found in: + * http://www.whatwg.org/specs/web-apps/current-work/multipage/scripting-1.html#the-script-element + * + * \param htmlc html content. + * \param allow_defer allow deferred execution, if not, only async scripts. + * \return NSERROR_OK error code. + */ +nserror html_script_exec(html_content *htmlc, bool allow_defer); + + +/** + * Free all script resources and references for a html content. + * + * \param htmlc html content. + * \return NSERROR_OK or error code. + */ +nserror html_script_free(html_content *htmlc); + + +/** + * Check if any of the scripts loaded were insecure + */ +bool html_saw_insecure_scripts(html_content *htmlc); + + +/** + * Complete the HTML content state machine *iff* all scripts are finished + */ +nserror html_proceed_to_done(html_content *html); + + +/* in html/redraw.c */ +bool html_redraw(struct content *c, struct content_redraw_data *data, + const struct rect *clip, const struct redraw_context *ctx); + + +/* in html/redraw_border.c */ +bool html_redraw_borders(struct box *box, int x_parent, int y_parent, + int p_width, int p_height, const struct rect *clip, float scale, + const struct redraw_context *ctx); + + +bool html_redraw_inline_borders(struct box *box, struct rect b, + const struct rect *clip, float scale, bool first, bool last, + const struct redraw_context *ctx); + + +/* in html/script.c */ +dom_hubbub_error html_process_script(void *ctx, dom_node *node); + + +/* in html/forms.c */ +struct form *html_forms_get_forms(const char *docenc, dom_html_document *doc); +struct form_control *html_forms_get_control_for_node(struct form *forms, + dom_node *node); + + +/* in html/css_fetcher.c */ +/** + * Register the fetcher for the pseudo x-ns-css scheme. + * + * \return NSERROR_OK on successful registration or error code on failure. + */ +nserror html_css_fetcher_register(void); +nserror html_css_fetcher_add_item(dom_string *data, nsurl *base_url, + uint32_t *key); + + +/* Events */ +/** + * Construct an event and fire it at the DOM + * + */ +bool fire_generic_dom_event(dom_string *type, dom_node *target, + bool bubbles, bool cancelable); + +/** + * Construct a keyboard event and fire it at the DOM + */ +bool fire_dom_keyboard_event(dom_string *type, dom_node *target, + bool bubbles, bool cancelable, uint32_t key); + +/* Useful dom_string pointers */ +struct dom_string; + +extern struct dom_string *html_dom_string_map; +extern struct dom_string *html_dom_string_id; +extern struct dom_string *html_dom_string_name; +extern struct dom_string *html_dom_string_area; +extern struct dom_string *html_dom_string_a; +extern struct dom_string *html_dom_string_nohref; +extern struct dom_string *html_dom_string_href; +extern struct dom_string *html_dom_string_target; +extern struct dom_string *html_dom_string_shape; +extern struct dom_string *html_dom_string_default; +extern struct dom_string *html_dom_string_rect; +extern struct dom_string *html_dom_string_rectangle; +extern struct dom_string *html_dom_string_coords; +extern struct dom_string *html_dom_string_circle; +extern struct dom_string *html_dom_string_poly; +extern struct dom_string *html_dom_string_polygon; +extern struct dom_string *html_dom_string_text_javascript; +extern struct dom_string *html_dom_string_type; +extern struct dom_string *html_dom_string_src; + +#endif |