interaction.c File Reference

implementation of user interaction with a CONTENT_HTML. More...

#include <assert.h>
#include <stdbool.h>
#include <string.h>
#include <dom/dom.h>
#include "utils/corestrings.h"
#include "utils/messages.h"
#include "utils/utils.h"
#include "utils/log.h"
#include "utils/nsoption.h"
#include "netsurf/content.h"
#include "netsurf/browser_window.h"
#include "netsurf/mouse.h"
#include "netsurf/misc.h"
#include "netsurf/layout.h"
#include "netsurf/keypress.h"
#include "content/hlcache.h"
#include "content/textsearch.h"
#include "desktop/browser_history.h"
#include "desktop/frames.h"
#include "desktop/scrollbar.h"
#include "desktop/selection.h"
#include "desktop/textarea.h"
#include "javascript/js.h"
#include "desktop/gui_internal.h"
#include "html/box.h"
#include "html/box_textarea.h"
#include "html/box_inspect.h"
#include "html/font.h"
#include "html/form_internal.h"
#include "html/private.h"
#include "html/imagemap.h"
#include "html/interaction.h"

Include dependency graph for interaction.c:

Go to the source code of this file.

Data Structures
struct	mouse_action_state
	local structure containing all the mouse action state information More...

Functions
static browser_pointer_shape	get_pointer_shape (struct box *box, bool imagemap)
	Get pointer shape for given box. More...
static void	html_box_drag_start (struct box *box, int x, int y)
	Start drag scrolling the contents of a box. More...
static size_t	html_selection_drag_end (struct html_content *html, browser_mouse_state mouse, int x, int y, int dir)
	End overflow scroll scrollbar drags. More...
static void	html__image_coords_dom_user_data_handler (dom_node_operation operation, dom_string *key, void *_data, struct dom_node *src, struct dom_node *dst)
	Helper for file gadgets to store their filename. More...
static void	html_overflow_scroll_drag_end (struct scrollbar *scrollbar, browser_mouse_state mouse, int x, int y)
	End overflow scroll scrollbar drags. More...
static nserror	mouse_action_select_menu (html_content *html, struct browser_window *bw, browser_mouse_state mouse, int x, int y)
	handle html mouse action when select menu is open More...
static nserror	mouse_action_drag_selection (html_content *html, struct browser_window *bw, browser_mouse_state mouse, int x, int y)
	handle html mouse action when a selection drag is being performed More...
static nserror	mouse_action_drag_scrollbar (html_content *html, struct browser_window *bw, browser_mouse_state mouse, int x, int y)
	handle html mouse action when a scrollbar drag is being performed More...
static nserror	mouse_action_drag_textarea (html_content *html, struct browser_window *bw, browser_mouse_state mouse, int x, int y)
	handle mouse actions while dragging in a text area More...
static nserror	mouse_action_drag_content (html_content *html, struct browser_window *bw, browser_mouse_state mouse, int x, int y)
	handle mouse actions while dragging in a content More...
static nserror	get_mouse_action_node (html_content *html, int x, int y, struct mouse_action_state *man)
	iterate the box tree for deepest node at coordinates More...
static nserror	gadget_mouse_action (html_content *html, browser_mouse_state mouse, int x, int y, struct mouse_action_state *mas)
	process mouse activity on a form gadget More...
static nserror	iframe_mouse_action (struct browser_window *bw, browser_mouse_state mouse, int x, int y, struct mouse_action_state *mas)
	process mouse activity on an iframe More...
static nserror	html_object_mouse_action (html_content *html, struct browser_window *bw, browser_mouse_state mouse, int x, int y, struct mouse_action_state *mas)
	process mouse activity on an html object More...
static bool	is_javascript_navigate_url (nsurl *url)
	determine if a url has a javascript scheme More...
static nserror	link_mouse_action (html_content *html, struct browser_window *bw, browser_mouse_state mouse, int x, int y, struct mouse_action_state *mas)
	process mouse activity on a link More...
static nserror	default_mouse_action_focus (html_content *html, browser_mouse_state mouse)
static nserror	default_mouse_action (html_content *html, struct browser_window *bw, browser_mouse_state mouse, int x, int y, struct mouse_action_state *mas)
	process mouse activity if it is not anything else More...
static nserror	mouse_action_drag_none (html_content *html, struct browser_window *bw, browser_mouse_state mouse, int x, int y)
	handle non dragging mouse actions More...
nserror	html_mouse_track (struct content *c, struct browser_window *bw, browser_mouse_state mouse, int x, int y)
	Handle mouse tracking (including drags) in an HTML content window. More...
nserror	html_mouse_action (struct content *c, struct browser_window *bw, browser_mouse_state mouse, int x, int y)
	Handle mouse clicks and movements in an HTML content window. More...
bool	html_keypress (struct content *c, uint32_t key)
	Handle keypresses. More...
void	html_overflow_scroll_callback (void *client_data, struct scrollbar_msg_data *scrollbar_data)
	Callback for in-page scrollbars. More...
void	html_set_drag_type (html_content *html, html_drag_type drag_type, union html_drag_owner drag_owner, const struct rect *rect)
	Set our drag status, and inform whatever owns the content. More...
void	html_set_focus (html_content *html, html_focus_type focus_type, union html_focus_owner focus_owner, bool hide_caret, int x, int y, int height, const struct rect *clip)
	Set our input focus, and inform whatever owns the content. More...
void	html_set_selection (html_content *html, html_selection_type selection_type, union html_selection_owner selection_owner, bool read_only)
	Set our selection status, and inform whatever owns the content. More...

Detailed Description

implementation of user interaction with a CONTENT_HTML.

Definition in file interaction.c.

Function Documentation

default_mouse_action()

static nserror default_mouse_action ( html_content *  html, struct browser_window *  bw, browser_mouse_state  mouse, int  x, int  y, struct mouse_action_state *  mas  )

static

process mouse activity if it is not anything else

Definition at line 1185 of file interaction.c.

References mouse_action_state::box, mouse_action_state::box_x, BROWSER_MOUSE_CLICK_1, BROWSER_MOUSE_CLICK_2, BROWSER_MOUSE_DRAG_1, BROWSER_MOUSE_DRAG_2, BROWSER_MOUSE_MOD_2, BROWSER_MOUSE_PRESS_1, BROWSER_MOUSE_PRESS_2, BROWSER_POINTER_MOVE, browser_window_frame_resize_start(), browser_window_page_drag_start(), html_content::bw, box::byte_offset, content_msg_data::content, content_broadcast(), CONTENT_MSG_DRAGSAVE, content_msg_data::CONTENT_SAVE_COMPLETE, content_msg_data::CONTENT_SAVE_SOURCE, default_mouse_action_focus(), mouse_action_state::drag_candidate, content_msg_data::dragsave, html_content::focus_type, font_plot_style_from_css(), guit, html_box_drag_start(), HTML_DRAG_SELECTION, HTML_FOCUS_SELF, HTML_SELECTION_NONE, HTML_SELECTION_SELF, html_set_drag_type(), html_set_focus(), html_set_selection(), netsurf_table::layout, box::length, messages_get(), html_drag_owner::no_owner, html_selection_owner::none, mouse_action_state::pointer, gui_layout_table::position, mouse_action_state::result, html_content::sel, selection_active(), selection_clear(), selection_click(), selection_dragging(), html_content::selection_type, html_focus_owner::self, mouse_action_state::status, box::style, box::text, mouse_action_state::text, mouse_action_state::title, content_msg_data::type, html_content::unit_len_ctx, content_msg_data::x, and content_msg_data::y.

Referenced by mouse_action_drag_none().

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default_mouse_action_focus()

static nserror default_mouse_action_focus ( html_content *  html, browser_mouse_state  mouse  )

static

Definition at line 1168 of file interaction.c.

References BROWSER_MOUSE_MOD_1, HTML_FOCUS_SELF, html_set_focus(), NSERROR_OK, and html_focus_owner::self.

Referenced by default_mouse_action().

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gadget_mouse_action()

static nserror gadget_mouse_action ( html_content *  html, browser_mouse_state  mouse, int  x, int  y, struct mouse_action_state *  mas  )

static

process mouse activity on a form gadget

Todo:

Find a way to not ignore errors

Definition at line 827 of file interaction.c.

References form::action, mouse_action_state::action, mouse_action_state::box, mouse_action_state::box_x, mouse_action_state::box_y, BROWSER_MOUSE_CLICK_1, BROWSER_MOUSE_CLICK_2, BROWSER_MOUSE_DRAG_1, BROWSER_MOUSE_DRAG_2, BROWSER_MOUSE_PRESS_1, BROWSER_MOUSE_PRESS_2, BROWSER_POINTER_DEFAULT, BROWSER_POINTER_MENU, content_broadcast(), CONTENT_MSG_GADGETCLICK, CONTENT_MSG_SELECTMENU, mouse_action_state::control, form_control::data, fallthrough, form_control::form, form_open_select_menu(), form_radio_set(), form_select_menu_callback(), content_msg_data::gadget, mouse_action_state::gadget, GADGET_BUTTON, GADGET_CHECKBOX, content_msg_data::gadget_click, GADGET_FILE, GADGET_HIDDEN, GADGET_IMAGE, GADGET_PASSWORD, GADGET_RADIO, GADGET_RESET, GADGET_SELECT, GADGET_SUBMIT, GADGET_TEXTAREA, GADGET_TEXTBOX, get_pointer_shape(), html__image_coords_dom_user_data_handler(), html__redraw_a_box(), HTML_SELECTION_NONE, HTML_SELECTION_TEXTAREA, html_set_selection(), messages_get(), messages_get_errorcode(), form_control::node, html_selection_owner::none, NSERROR_OK, NSLOG, nsoption_bool, mouse_action_state::pointer, mouse_action_state::result, scrollbar_mouse_status_to_message(), content_msg_data::select_menu, form_control::selected, html_content::selection_owner, html_content::selection_type, mouse_action_state::status, html_selection_owner::textarea, textarea_mouse_action(), TEXTAREA_MOUSE_EDITOR, form_control::type, html_content::visible_select_menu, image_input_coords::x, and image_input_coords::y.

Referenced by mouse_action_drag_none().

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get_mouse_action_node()

static nserror get_mouse_action_node ( html_content *  html, int  x, int  y, struct mouse_action_state *  man  )

static

iterate the box tree for deepest node at coordinates

extracts mouse action node information by descending through visible boxes setting more specific values for:

box - deepest box at point html_object_box - html object html_object_pos_x - html object html_object_pos_y - html object object - non html object iframe - iframe url - href or imagemap target - href or imagemap or gadget url_box - href or imagemap imagemap - imagemap gadget - gadget gadget_box - gadget gadget_box_x - gadget gadget_box_y - gadget title - title pointer

drag_candidate - first box with scroll padding_left - box with scroll padding_right padding_top padding_bottom scrollbar - inside padding box stops decent scroll_mouse_x - inside padding box stops decent scroll_mouse_y - inside padding box stops decent

text_box - text box text_box_x - text_box

Definition at line 674 of file interaction.c.

References mouse_action_state::bar, BOTTOM, mouse_action_state::box, box_at_point(), mouse_action_state::box_x, mouse_action_state::box_y, BROWSER_POINTER_DEFAULT, content_get_type(), CONTENT_HTML, mouse_action_state::control, mouse_action_state::drag_candidate, form_control::form, box::gadget, mouse_action_state::gadget, get_pointer_shape(), box::height, box::href, mouse_action_state::html_object, box::iframe, mouse_action_state::iframe, imagemap_get(), mouse_action_state::is_imagemap, html_content::layout, LEFT, mouse_action_state::link, box::margin, mouse_action_state::mouse_x, mouse_action_state::mouse_y, box::node, mouse_action_state::node, NSERROR_OK, box::object, mouse_action_state::object, box::padding, mouse_action_state::pointer, mouse_action_state::pos_x, mouse_action_state::pos_y, mouse_action_state::result, RIGHT, mouse_action_state::scroll, box::scroll_x, box::scroll_y, scrollbar_get_offset(), SCROLLBAR_WIDTH, box::style, box::target, form::target, mouse_action_state::target, box::text, mouse_action_state::text, box::title, mouse_action_state::title, TOP, html_content::unit_len_ctx, mouse_action_state::url, box::usemap, box::width, box::x, and box::y.

Referenced by mouse_action_drag_none().

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get_pointer_shape()

static browser_pointer_shape get_pointer_shape ( struct box *  box, bool  imagemap  )

static

Get pointer shape for given box.

Parameters

box	box in question
imagemap	whether an imagemap applies to the box

Definition at line 70 of file interaction.c.

References BOX_FLOAT_LEFT, BOX_FLOAT_RIGHT, BROWSER_POINTER_AUTO, BROWSER_POINTER_CARET, BROWSER_POINTER_CROSS, BROWSER_POINTER_DEFAULT, BROWSER_POINTER_DOWN, BROWSER_POINTER_HELP, BROWSER_POINTER_LD, BROWSER_POINTER_LEFT, BROWSER_POINTER_LU, BROWSER_POINTER_MOVE, BROWSER_POINTER_POINT, BROWSER_POINTER_PROGRESS, BROWSER_POINTER_RD, BROWSER_POINTER_RIGHT, BROWSER_POINTER_RU, BROWSER_POINTER_UP, BROWSER_POINTER_WAIT, box::children, box::gadget, GADGET_IMAGE, GADGET_PASSWORD, GADGET_SUBMIT, GADGET_TEXTAREA, GADGET_TEXTBOX, box::href, box::style, box::type, and form_control::type.

Referenced by gadget_mouse_action(), get_mouse_action_node(), and link_mouse_action().

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html__image_coords_dom_user_data_handler()

static void html__image_coords_dom_user_data_handler ( dom_node_operation  operation, dom_string *  key, void *  _data, struct dom_node *  src, struct dom_node *  dst  )

static

Helper for file gadgets to store their filename.

Stores the filename unencoded on the dom node associated with the gadget.

Todo:

Get rid of this crap eventually

Parameters

operation	DOM operation
key	DOM node key being considerd
_data	The data assocated with the key
src	The source DOM node.
dst	The destination DOM node.

Definition at line 242 of file interaction.c.

References html__image_coords_dom_user_data_handler(), and NSLOG.

Referenced by gadget_mouse_action(), and html__image_coords_dom_user_data_handler().

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html_box_drag_start()

static void html_box_drag_start ( struct box *  box, int  x, int  y  )

static

Start drag scrolling the contents of a box.

Parameters

box	the box to be scrolled
x	x ordinate of initial mouse position
y	y ordinate

Definition at line 168 of file interaction.c.

References BOTTOM, box_coords(), box::height, LEFT, box::padding, RIGHT, box::scroll_x, box::scroll_y, scrollbar_start_content_drag(), SCROLLBAR_WIDTH, TOP, and box::width.

Referenced by default_mouse_action().

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html_keypress()

bool html_keypress	(	struct content *	c,
		uint32_t	key
	)

Handle keypresses.

Parameters

c	content of type HTML
key	The UCS4 character codepoint

Returns

true if key handled, false otherwise

Todo:

At the moment, the front end interface for keypress only gives us a UCS4 key value. This doesn't doesn't have all the information we need to fill out the event properly. We don't get to know about modifier keys, and things like CTRL+C are passed in as NS_KEY_COPY_SELECTION, a magic value outside the valid Unicode range.

We need to:

1. Update the front end interface so that both press and release events reach the core.
2. Stop encoding the special keys like NS_KEY_COPY_SELECTION as magic values in the front ends, so we just get the events, e.g.:
   1. Press ctrl
   2. Press c
   3. Release c
   4. Release ctrl
3. Pass all the new info to the DOM KeyboardEvent events.
4. If there is a focused element, fire the event at that, instead of html->layout->node.
5. Rebuild the NS_KEY_COPY_SELECTION values from the info we now get given, and use that for the code below this fire_dom_keyboard_event call.
6. Move the code after this fire_dom_keyboard_event call into the default action handler for DOM events.

This will mean that if the JavaScript event listener does event.preventDefault() then we won't handle the event when we're not supposed to.

Definition at line 1530 of file interaction.c.

References box_textarea_keypress(), html_focus_owner::content, content_keypress(), fire_dom_keyboard_event(), html_content::focus_owner, html_content::focus_type, HTML_FOCUS_CONTENT, HTML_FOCUS_TEXTAREA, html_content::layout, box::node, NS_KEY_CLEAR_SELECTION, NS_KEY_COPY_SELECTION, NS_KEY_ESCAPE, NS_KEY_SELECT_ALL, NSERROR_OK, box::object, html_content::sel, selection_clear(), selection_copy_to_clipboard(), selection_select_all(), and html_focus_owner::textarea.

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html_mouse_action()

nserror html_mouse_action	(	struct content *	c,
		struct browser_window *	bw,
		browser_mouse_state	mouse,
		int	x,
		int	y
	)

Handle mouse clicks and movements in an HTML content window.

This function handles both hovering and clicking. It is important that the code path is identical (except that hovering doesn't carry out the action), so that the status bar reflects exactly what will happen. Having separate code paths opens the possibility that an attacker will make the status bar show some harmless action where clicking will be harmful.

Parameters

c	content of type html
bw	browser window
mouse	state of mouse buttons and modifier keys
x	x coordinate of mouse
y	y coordinate of mouse

Returns

NSERROR_OK or appropriate error code.

Definition at line 1473 of file interaction.c.

References html_content::drag_type, HTML_DRAG_CONTENT_SCROLL, HTML_DRAG_CONTENT_SELECTION, HTML_DRAG_NONE, HTML_DRAG_SCROLLBAR, HTML_DRAG_SELECTION, HTML_DRAG_TEXTAREA_SCROLLBAR, HTML_DRAG_TEXTAREA_SELECTION, messages_get_errorcode(), mouse_action_drag_content(), mouse_action_drag_none(), mouse_action_drag_scrollbar(), mouse_action_drag_selection(), mouse_action_drag_textarea(), mouse_action_select_menu(), NSERROR_OK, NSLOG, and html_content::visible_select_menu.

Referenced by html_mouse_track().

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html_mouse_track()

nserror html_mouse_track	(	struct content *	c,
		struct browser_window *	bw,
		browser_mouse_state	mouse,
		int	x,
		int	y
	)

Handle mouse tracking (including drags) in an HTML content window.

Parameters

c	content of type html
bw	browser window
mouse	state of mouse buttons and modifier keys
x	coordinate of mouse
y	coordinate of mouse

Definition at line 1462 of file interaction.c.

References html_mouse_action().

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html_object_mouse_action()

static nserror html_object_mouse_action ( html_content *  html, struct browser_window *  bw, browser_mouse_state  mouse, int  x, int  y, struct mouse_action_state *  mas  )

static

process mouse activity on an html object

Definition at line 1026 of file interaction.c.

References mouse_action_state::action, mouse_action_state::box, BROWSER_MOUSE_CLICK_1, BROWSER_MOUSE_CLICK_2, BROWSER_MOUSE_DRAG_1, BROWSER_MOUSE_DRAG_2, BROWSER_MOUSE_PRESS_1, BROWSER_MOUSE_PRESS_2, html_selection_owner::content, content_mouse_action(), content_mouse_track(), mouse_action_state::html_object, HTML_SELECTION_CONTENT, HTML_SELECTION_NONE, html_set_selection(), html_selection_owner::none, NSERROR_OK, box::object, mouse_action_state::pos_x, mouse_action_state::pos_y, mouse_action_state::result, html_content::selection_owner, and html_content::selection_type.

Referenced by mouse_action_drag_none().

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html_overflow_scroll_callback()

void html_overflow_scroll_callback	(	void *	client_data,
		struct scrollbar_msg_data *	scrollbar_data
	)

Callback for in-page scrollbars.

Definition at line 1612 of file interaction.c.

References html_scrollbar_data::box, BROWSER_POINTER_AUTO, html_scrollbar_data::c, content_broadcast(), CONTENT_MSG_POINTER, html__redraw_a_box(), HTML_DRAG_NONE, HTML_DRAG_SCROLLBAR, html_set_drag_type(), scrollbar_msg_data::msg, html_content::reflowing, scrollbar_msg_data::scrollbar, SCROLLBAR_MSG_MOVED, SCROLLBAR_MSG_SCROLL_FINISHED, SCROLLBAR_MSG_SCROLL_START, scrollbar_msg_data::x0, rect::x0, scrollbar_msg_data::x1, scrollbar_msg_data::y0, and scrollbar_msg_data::y1.

Referenced by box_handle_scrollbars().

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html_overflow_scroll_drag_end()

static void html_overflow_scroll_drag_end ( struct scrollbar *  scrollbar, browser_mouse_state  mouse, int  x, int  y  )

static

End overflow scroll scrollbar drags.

Parameters

scrollbar	scrollbar widget
mouse	state of mouse buttons and modifier keys
x	coordinate of mouse
y	coordinate of mouse

Definition at line 295 of file interaction.c.

References BOTTOM, html_scrollbar_data::box, box_coords(), box::height, LEFT, box::padding, RIGHT, scrollbar_get_data(), scrollbar_is_horizontal(), scrollbar_mouse_drag_end(), SCROLLBAR_WIDTH, TOP, box::width, box::x, and box::y.

Referenced by mouse_action_drag_scrollbar().

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html_selection_drag_end()

static size_t html_selection_drag_end ( struct html_content *  html, browser_mouse_state  mouse, int  x, int  y, int  dir  )

static

End overflow scroll scrollbar drags.

Parameters

html	html content
mouse	state of mouse buttons and modifier keys
x	coordinate of mouse
y	coordinate of mouse
dir	Direction of drag

Definition at line 203 of file interaction.c.

References box_pick_text_box(), box::byte_offset, font_plot_style_from_css(), guit, netsurf_table::layout, box::length, gui_layout_table::position, box::style, box::text, html_content::unit_len_ctx, box::x, and box::y.

Referenced by mouse_action_drag_selection().

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html_set_drag_type()

void html_set_drag_type	(	html_content *	html,
		html_drag_type	drag_type,
		union html_drag_owner	drag_owner,
		const struct rect *	rect
	)

Set our drag status, and inform whatever owns the content.

Parameters

html	HTML content
drag_type	Type of drag
drag_owner	What owns the drag
rect	Pointer movement bounds

Definition at line 1659 of file interaction.c.

References content_broadcast(), content_msg_data::CONTENT_DRAG_NONE, content_msg_data::CONTENT_DRAG_SCROLL, content_msg_data::CONTENT_DRAG_SELECTION, CONTENT_MSG_DRAG, content_msg_data::drag, html_content::drag_owner, html_content::drag_type, fallthrough, HTML_DRAG_CONTENT_SCROLL, HTML_DRAG_CONTENT_SELECTION, HTML_DRAG_NONE, HTML_DRAG_SCROLLBAR, HTML_DRAG_SELECTION, HTML_DRAG_TEXTAREA_SCROLLBAR, HTML_DRAG_TEXTAREA_SELECTION, html_drag_owner::no_owner, content_msg_data::rect, and content_msg_data::type.

Referenced by box_textarea_callback(), default_mouse_action(), html_object_callback(), html_overflow_scroll_callback(), and mouse_action_drag_selection().

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html_set_focus()

void html_set_focus	(	html_content *	html,
		html_focus_type	focus_type,
		union html_focus_owner	focus_owner,
		bool	hide_caret,
		int	x,
		int	y,
		int	height,
		const struct rect *	clip
	)

Set our input focus, and inform whatever owns the content.

Parameters

html	HTML content
focus_type	Type of input focus
focus_owner	What owns the focus
hide_caret	True iff caret to be hidden
x	Carret x-coord rel to owner
y	Carret y-coord rel to owner
height	Carret height
clip	Carret clip rect

Definition at line 1696 of file interaction.c.

References box_coords(), content_msg_data::caret, content_msg_data::clip, clip(), html_focus_owner::content, content_broadcast(), CONTENT_MSG_CARET, html_content::focus_owner, html_content::focus_type, content_msg_data::height, height, HTML_FOCUS_CONTENT, HTML_FOCUS_SELF, HTML_FOCUS_TEXTAREA, content_msg_data::pos, html_focus_owner::self, html_focus_owner::textarea, content_msg_data::type, content_msg_data::x, rect::x0, rect::x1, content_msg_data::y, rect::y0, and rect::y1.

Referenced by box_textarea_callback(), default_mouse_action(), default_mouse_action_focus(), and html_object_callback().

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html_set_selection()

void html_set_selection	(	html_content *	html,
		html_selection_type	selection_type,
		union html_selection_owner	selection_owner,
		bool	read_only
	)

Set our selection status, and inform whatever owns the content.

Parameters

html	HTML content
selection_type	Type of selection
selection_owner	What owns the selection
read_only	True iff selection is read only

Definition at line 1754 of file interaction.c.

References html_selection_owner::content, content_broadcast(), content_clear_selection(), CONTENT_MSG_SELECTION, form_control::data, fallthrough, box::gadget, HTML_SELECTION_CONTENT, HTML_SELECTION_NONE, HTML_SELECTION_SELF, HTML_SELECTION_TEXTAREA, html_selection_owner::none, box::object, html_content::sel, content_msg_data::selection, selection_clear(), html_content::selection_owner, html_content::selection_type, html_selection_owner::textarea, and textarea_clear_selection().

Referenced by box_textarea_callback(), default_mouse_action(), gadget_mouse_action(), html_object_callback(), and html_object_mouse_action().

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iframe_mouse_action()

static nserror iframe_mouse_action ( struct browser_window *  bw, browser_mouse_state  mouse, int  x, int  y, struct mouse_action_state *  mas  )

static

process mouse activity on an iframe

Definition at line 992 of file interaction.c.

References mouse_action_state::action, BROWSER_MOUSE_CLICK_1, BROWSER_MOUSE_CLICK_2, browser_window_get_position(), browser_window_get_scale(), browser_window_mouse_click(), browser_window_mouse_track(), mouse_action_state::iframe, NSERROR_OK, and mouse_action_state::result.

Referenced by mouse_action_drag_none().

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is_javascript_navigate_url()

static bool is_javascript_navigate_url ( nsurl *  url )

static

determine if a url has a javascript scheme

Parameters

urm	The url to check.

Returns

true if the url is a javascript scheme else false

Definition at line 1071 of file interaction.c.

References nsurl_get_component(), and NSURL_SCHEME.

Referenced by link_mouse_action().

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link_mouse_action()

static nserror link_mouse_action ( html_content *  html, struct browser_window *  bw, browser_mouse_state  mouse, int  x, int  y, struct mouse_action_state *  mas  )

static

process mouse activity on a link

Definition at line 1091 of file interaction.c.

References mouse_action_state::action, mouse_action_state::box, BROWSER_MOUSE_CLICK_1, BROWSER_MOUSE_CLICK_2, BROWSER_MOUSE_MOD_1, browser_window_navigate(), BW_NAVIGATE_DOWNLOAD, content_broadcast(), content_get_url(), CONTENT_MSG_SAVELINK, get_pointer_shape(), mouse_action_state::is_imagemap, is_javascript_navigate_url(), mouse_action_state::link, NSERROR_OK, nsoption_bool, nsurl_access(), nsurl_get_utf8(), mouse_action_state::pointer, mouse_action_state::result, content_msg_data::savelink, mouse_action_state::status, content_msg_data::title, mouse_action_state::title, content_msg_data::url, and mouse_action_state::url.

Referenced by mouse_action_drag_none().

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mouse_action_drag_content()

static nserror mouse_action_drag_content ( html_content *  html, struct browser_window *  bw, browser_mouse_state  mouse, int  x, int  y  )

static

handle mouse actions while dragging in a content

Definition at line 545 of file interaction.c.

References box_coords(), html_drag_owner::content, content_mouse_track(), html_content::drag_owner, NSERROR_OK, box::object, box::x, and box::y.

Referenced by html_mouse_action().

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mouse_action_drag_none()

static nserror mouse_action_drag_none ( html_content *  html, struct browser_window *  bw, browser_mouse_state  mouse, int  x, int  y  )

static

handle non dragging mouse actions

computed state

not on heap to avoid allocation or stack because it is large

Definition at line 1324 of file interaction.c.

References mouse_action_state::action, mouse_action_state::ACTION_BACK, mouse_action_state::ACTION_FORWARD, mouse_action_state::ACTION_JS, mouse_action_state::ACTION_NAVIGATE, mouse_action_state::ACTION_NONE, mouse_action_state::ACTION_NOSEND, mouse_action_state::ACTION_SUBMIT, mouse_action_state::bar, mouse_action_state::box, BROWSER_MOUSE_CLICK_1, BROWSER_MOUSE_CLICK_4, BROWSER_MOUSE_CLICK_5, BROWSER_MOUSE_DRAG_1, BROWSER_MOUSE_DRAG_2, BROWSER_MOUSE_MOD_2, BROWSER_POINTER_DEFAULT, browser_window_find_target(), browser_window_history_back(), browser_window_history_forward(), browser_window_navigate(), BW_NAVIGATE_HISTORY, content_msg_data::content, content_broadcast(), content_get_url(), CONTENT_MSG_DRAGSAVE, CONTENT_MSG_POINTER, CONTENT_MSG_STATUS, mouse_action_state::control, default_mouse_action(), content_msg_data::dragsave, content_msg_data::explicit_status_text, fire_generic_dom_event(), form_control::form, form_submit(), mouse_action_state::gadget, gadget_mouse_action(), get_mouse_action_node(), html_exec(), mouse_action_state::html_object, html_object_mouse_action(), mouse_action_state::iframe, iframe_mouse_action(), mouse_action_state::link, link_mouse_action(), mouse_action_state::mouse_x, mouse_action_state::mouse_y, mouse_action_state::node, NSERROR_OK, nsurl_get_component(), NSURL_PATH, mouse_action_state::object, path(), content_msg_data::pointer, mouse_action_state::pointer, mouse_action_state::result, mouse_action_state::scroll, scrollbar_mouse_action(), scrollbar_mouse_status_to_message(), mouse_action_state::status, mouse_action_state::target, content_msg_data::type, and mouse_action_state::url.

Referenced by html_mouse_action().

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mouse_action_drag_scrollbar()

static nserror mouse_action_drag_scrollbar ( html_content *  html, struct browser_window *  bw, browser_mouse_state  mouse, int  x, int  y  )

static

handle html mouse action when a scrollbar drag is being performed

Definition at line 448 of file interaction.c.

References BOTTOM, html_scrollbar_data::box, box_coords(), content_broadcast(), CONTENT_MSG_STATUS, html_content::drag_owner, content_msg_data::explicit_status_text, box::height, html_overflow_scroll_drag_end(), LEFT, NSERROR_OK, box::padding, RIGHT, html_drag_owner::scrollbar, scrollbar_get_data(), scrollbar_is_horizontal(), scrollbar_mouse_action(), scrollbar_mouse_status_to_message(), SCROLLBAR_WIDTH, TOP, box::width, box::x, and box::y.

Referenced by html_mouse_action().

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mouse_action_drag_selection()

static nserror mouse_action_drag_selection ( html_content *  html, struct browser_window *  bw, browser_mouse_state  mouse, int  x, int  y  )

static

handle html mouse action when a selection drag is being performed

Definition at line 391 of file interaction.c.

References box_pick_text_box(), box::byte_offset, font_plot_style_from_css(), guit, HTML_DRAG_NONE, html_selection_drag_end(), html_set_drag_type(), netsurf_table::layout, box::length, html_drag_owner::no_owner, NSERROR_OK, gui_layout_table::position, html_content::sel, selection_dragging_start(), selection_track(), box::style, box::text, and html_content::unit_len_ctx.

Referenced by html_mouse_action().

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mouse_action_drag_textarea()

static nserror mouse_action_drag_textarea ( html_content *  html, struct browser_window *  bw, browser_mouse_state  mouse, int  x, int  y  )

static

handle mouse actions while dragging in a text area

Definition at line 514 of file interaction.c.

References box_coords(), form_control::data, html_content::drag_owner, box::gadget, GADGET_PASSWORD, GADGET_TEXTAREA, GADGET_TEXTBOX, NSERROR_OK, html_drag_owner::textarea, textarea_mouse_action(), form_control::type, box::x, and box::y.

Referenced by html_mouse_action().

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mouse_action_select_menu()

static nserror mouse_action_select_menu ( html_content *  html, struct browser_window *  bw, browser_mouse_state  mouse, int  x, int  y  )

static

handle html mouse action when select menu is open

Definition at line 329 of file interaction.c.

References box::border, BOTTOM, form_control::box, box_coords(), browser_window_get_content(), browser_window_get_drag_type(), content_broadcast(), CONTENT_MSG_STATUS, content_request_redraw(), DRAGGING_NONE, content_msg_data::explicit_status_text, form_select_get_dimensions(), form_select_mouse_action(), form_select_mouse_drag_end(), box::height, height, LEFT, NSERROR_OK, box::padding, TOP, html_content::visible_select_menu, box_border::width, and width.

Referenced by html_mouse_action().

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