html_object.c File Reference

Processing for html content object operations. More...

#include <assert.h>
#include <ctype.h>
#include <stdint.h>
#include <string.h>
#include <strings.h>
#include <stdlib.h>
#include <nsutils/time.h>
#include "utils/corestrings.h"
#include "utils/config.h"
#include "utils/log.h"
#include "utils/nsoption.h"
#include "netsurf/content.h"
#include "netsurf/misc.h"
#include "content/hlcache.h"
#include "css/utils.h"
#include "desktop/scrollbar.h"
#include "desktop/gui_internal.h"
#include "html/html.h"
#include "html/box.h"
#include "html/box_inspect.h"
#include "html/html_internal.h"

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Functions
static void	html_object_refresh (void *p)
	schedule callback for object refresh More...
struct content_html_object *	html_get_objects (hlcache_handle *h, unsigned int *n)
	Retrieve objects used by HTML document. More...
static void	html_object_failed (struct box *box, html_content *content, bool background)
	Handle object fetching or loading failure. More...
static void	html_object_done (struct box *box, hlcache_handle *object, bool background)
	Update a box whose content has completed rendering. More...
static nserror	html_object_callback (hlcache_handle *object, const hlcache_event *event, void *pw)
	Callback for hlcache_handle_retrieve() for objects. More...
static bool	html_replace_object (struct content_html_object *object, nsurl *url)
	Start a fetch for an object required by a page, replacing an existing object. More...
nserror	html_object_open_objects (html_content *html, struct browser_window *bw)
nserror	html_object_abort_objects (html_content *htmlc)
nserror	html_object_close_objects (html_content *html)
nserror	html_object_free_objects (html_content *html)
bool	html_fetch_object (html_content *c, nsurl *url, struct box *box, content_type permitted_types, int available_width, int available_height, bool background)
	Start a fetch for an object required by a page. More...

Detailed Description

Processing for html content object operations.

Definition in file html_object.c.

Function Documentation

html_fetch_object()

bool html_fetch_object	(	html_content *	c,
		nsurl *	url,
		struct box *	box,
		content_type	permitted_types,
		int	available_width,
		int	available_height,
		bool	background
	)

Start a fetch for an object required by a page.

Parameters

c	content of type CONTENT_HTML
url	URL of object to fetch (copied)
box	box that will contain the object
permitted_types	bitmap of acceptable types
available_width	estimate of width of object
available_height	estimate of height of object
background	this is a background image

Returns

true on success, false on memory exhaustion

Definition at line 680 of file html_object.c.

References html_content::aborted, content::active, box::background, html_content::base, hlcache_child_context::charset, content_html_object::content, content_get_url(), html_content::encoding, hlcache_handle_retrieve(), HLCACHE_RETRIEVE_SNIFF_TYPE, html_object_callback(), NSERROR_NOMEM, NSERROR_OK, NSLOG, html_content::num_objects, html_content::object_list, content_html_object::permitted_types, hlcache_child_context::quirks, and content::quirks.

Referenced by box_construct_element(), box_construct_marker(), box_embed(), box_image(), box_input(), box_object(), and html_process_img().

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html_get_objects()

struct content_html_object* html_get_objects	(	hlcache_handle *	h,
		unsigned int *	n
	)

Retrieve objects used by HTML document.

Parameters

h	Content to retrieve objects from
n	Pointer to location to receive number of objects

Returns

Pointer to list of objects

Definition at line 58 of file html_object.c.

References hlcache_handle_get_content(), html_content::num_objects, and html_content::object_list.

Referenced by browser_window_reload(), and save_complete_save_html_objects().

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html_object_abort_objects()

nserror html_object_abort_objects

(

html_content *

htmlc

)

Definition at line 595 of file html_object.c.

References content::active, html_content::base, content_html_object::box, content_html_object::content, content_get_status(), CONTENT_STATUS_DONE, CONTENT_STATUS_READY, hlcache_handle_abort(), hlcache_handle_release(), content_html_object::next, NSERROR_OK, NSLOG, and html_content::object_list.

Referenced by html_stop().

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html_object_callback()

static nserror html_object_callback ( hlcache_handle *  object, const hlcache_event *  event, void *  pw  )

static

Callback for hlcache_handle_retrieve() for objects.

Definition at line 131 of file html_object.c.

References content::active, content::available_height, content::available_width, content_html_object::background, box::background, html_content::base, BOTTOM, content_html_object::box, box_coords(), box_visible(), html_content::bw, content_msg_data::caret, html_drag_owner::content, html_selection_owner::content, html_focus_owner::content, content_html_object::content, content_msg_data::content, content__get_height(), content__get_width(), content__reformat(), content_add_error(), content_broadcast(), content_can_reformat(), content_get_height(), content_get_type(), content_get_width(), CONTENT_HTML, CONTENT_MSG_CARET, CONTENT_MSG_DONE, CONTENT_MSG_DRAG, CONTENT_MSG_DRAGSAVE, CONTENT_MSG_ERROR, CONTENT_MSG_GADGETCLICK, CONTENT_MSG_GETDIMS, CONTENT_MSG_GETTHREAD, CONTENT_MSG_LINK, CONTENT_MSG_LOADING, CONTENT_MSG_POINTER, CONTENT_MSG_READY, CONTENT_MSG_REDRAW, CONTENT_MSG_REFRESH, CONTENT_MSG_SAVELINK, CONTENT_MSG_SCROLL, CONTENT_MSG_SELECTION, CONTENT_MSG_SELECTMENU, content_open(), content_reformat(), content_set_done(), CONTENT_STATUS_DONE, CONTENT_STATUS_LOADING, CONTENT_STATUS_READY, hlcache_event::data, content_msg_data::delay, content_msg_data::drag, content_msg_data::dragsave, box::flags, guit, html_content::had_initial_layout, content_msg_data::height, height, box::height, hlcache_handle_release(), HTML_DRAG_CONTENT_SCROLL, HTML_DRAG_CONTENT_SELECTION, HTML_DRAG_NONE, HTML_FOCUS_CONTENT, html_object_done(), html_object_failed(), html_object_refresh(), HTML_SELECTION_CONTENT, HTML_SELECTION_NONE, html_set_drag_type(), html_set_focus(), html_set_selection(), LEFT, html_content::len_ctx, box::max_width, netsurf_table::misc, html_drag_owner::no_owner, html_selection_owner::none, nscss_len2px(), NSERROR_OK, NSLOG, nsoption_bool, box::object_params, box::padding, content_html_object::parent, content_msg_data::pos, content_msg_data::rect, content_msg_data::redraw, content::reformat_time, REPLACE_DIM, RIGHT, gui_misc_table::schedule, content_msg_data::scroll, box::scroll_x, box::scroll_y, scrollbar_set(), content_msg_data::selection, content::status, box::style, TOP, hlcache_event::type, content_msg_data::type, UNKNOWN_MAX_WIDTH, content_msg_data::width, width, box::width, content_msg_data::x, content_msg_data::x0, content_msg_data::y, and content_msg_data::y0.

Referenced by html_fetch_object(), and html_replace_object().

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html_object_close_objects()

nserror html_object_close_objects

(

html_content *

html

)

Definition at line 635 of file html_object.c.

References content_html_object::box, content_html_object::content, content_close(), content_get_type(), CONTENT_HTML, CONTENT_NONE, guit, html_object_refresh(), netsurf_table::misc, content_html_object::next, NSERROR_OK, html_content::object_list, and gui_misc_table::schedule.

Referenced by html_close().

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html_object_done()

static void html_object_done ( struct box *  box, hlcache_handle *  object, bool  background  )

static

Update a box whose content has completed rendering.

Definition at line 90 of file html_object.c.

References box::background, BOX_BLOCK, BOX_TABLE, CLONE, box::flags, box::max_width, box::next, box::object, box::parent, REPLACE_DIM, box::type, and UNKNOWN_MAX_WIDTH.

Referenced by html_object_callback().

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html_object_failed()

static void html_object_failed ( struct box *  box, html_content *  content, bool  background  )

static

Handle object fetching or loading failure.

Parameters

box	box containing object which failed to load
content	document of type CONTENT_HTML
background	the object was the background image for the box

Definition at line 79 of file html_object.c.

Referenced by html_object_callback().

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html_object_free_objects()

nserror html_object_free_objects

(

html_content *

html

)

Definition at line 657 of file html_object.c.

References content_html_object::content, content_get_type(), CONTENT_HTML, guit, hlcache_handle_release(), html_object_refresh(), netsurf_table::misc, content_html_object::next, NSERROR_OK, NSLOG, html_content::object_list, and gui_misc_table::schedule.

Referenced by html_box_convert_done(), html_destroy(), and html_finish_conversion().

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html_object_open_objects()

nserror html_object_open_objects	(	html_content *	html,
		struct browser_window *	bw
	)

Definition at line 574 of file html_object.c.

References html_content::base, content_html_object::box, content_html_object::content, content_get_type(), CONTENT_NONE, content_open(), content_html_object::next, NSERROR_OK, html_content::object_list, and box::object_params.

Referenced by html_open().

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html_object_refresh()

static void html_object_refresh ( void *  p )

static

schedule callback for object refresh

Todo:

handle memory exhaustion

Definition at line 553 of file html_object.c.

References content_html_object::content, content_get_refresh_url(), content_get_type(), CONTENT_HTML, content_invalidate_reuse_data(), and html_replace_object().

Referenced by html_object_callback(), html_object_close_objects(), and html_object_free_objects().

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html_replace_object()

static bool html_replace_object ( struct content_html_object *  object, nsurl *  url  )

static

Start a fetch for an object required by a page, replacing an existing object.

Parameters

object	Object to replace
url	URL of object to fetch (copied)

Returns

true on success, false on memory exhaustion

Definition at line 500 of file html_object.c.

References content::active, html_content::base, content_html_object::box, hlcache_child_context::charset, content_html_object::content, content_get_status(), content_get_url(), CONTENT_STATUS_DONE, CONTENT_STATUS_READY, html_content::encoding, hlcache_handle_release(), hlcache_handle_retrieve(), HLCACHE_RETRIEVE_SNIFF_TYPE, html_object_callback(), NSERROR_OK, NSLOG, html_content::page, content_html_object::parent, content_html_object::permitted_types, hlcache_child_context::quirks, content::quirks, and content::status.

Referenced by html_object_refresh().

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