Single/Multi-line UTF-8 text area implementation. More...

#include <stdint.h>
#include <string.h>
#include "utils/log.h"
#include "utils/utf8.h"
#include "utils/utils.h"
#include "netsurf/browser_window.h"
#include "netsurf/plotters.h"
#include "netsurf/mouse.h"
#include "netsurf/keypress.h"
#include "netsurf/clipboard.h"
#include "netsurf/layout.h"
#include "css/utils.h"
#include "desktop/textarea.h"
#include "desktop/scrollbar.h"
#include "desktop/gui_internal.h"

Include dependency graph for textarea.c:

Data Structures
struct	line_info

struct	textarea_drag

struct	textarea_utf8

struct	textarea_undo_detail

struct	textarea_undo

struct	textarea

Macros
#define	CARET_COLOR 0x0000FF

#define	TA_ALLOC_STEP 512

#define	PASSWORD_REPLACEMENT "\xe2\x80\xa2"

#define	PASSWORD_REPLACEMENT_W (sizeof(PASSWORD_REPLACEMENT) - 1)

#define	LINE_CHUNK_SIZE 32

Functions
static void	textarea_normalise_text (struct textarea *ta, unsigned int b_start, unsigned int b_len)
	Normalises any line endings within the text, replacing CRLF or CR with LF as necessary. More...

static void	textarea_reset_selection (struct textarea *ta)
	Reset the selection (no redraw) More...

static int	textarea_get_caret (struct textarea *ta)
	Get the caret's position. More...

static bool	textarea_scroll_visible (struct textarea *ta)
	Scrolls a textarea to make the caret visible (doesn't perform a redraw) More...

static bool	textarea_set_caret_internal (struct textarea *ta, int caret_b)
	Set the caret position. More...

static bool	textarea_select (struct textarea *ta, int b_start, int b_end, bool force_redraw)
	Selects a character range in the textarea and redraws it. More...

static bool	textarea_select_fragment (struct textarea *ta)
	Selects a text fragment, relative to current caret position. More...

static bool	textarea_select_paragraph (struct textarea *ta)
	Selects paragraph, at current caret position. More...

static void	textarea_scrollbar_callback (void client_data, struct scrollbar_msg_data scrollbar_data)
	Callback for scrollbar widget. More...

static bool	textarea_reflow_singleline (struct textarea ta, size_t b_off, struct rect r)
	Reflow a single line textarea. More...

static bool	textarea_reflow_multiline (struct textarea ta, const size_t b_start, const int b_length, struct rect r)
	Reflow a multiline textarea from the given line onwards. More...

static size_t	textarea_get_b_off_xy (struct textarea *ta, int x, int y, bool visible)
	get byte offset from the beginning of the text for some coordinates More...

static bool	textarea_set_caret_xy (struct textarea *ta, int x, int y, bool visible)
	Set the caret's position. More...

static bool	textarea_insert_text (struct textarea ta, const char text, size_t b_off, size_t b_len, int byte_delta, struct rect r)
	Insert text into the textarea. More...

static void	textarea_char_to_byte_offset (struct textarea_utf8 text, unsigned int start, unsigned int end, size_t b_start, size_t *b_end)
	Helper for replace_text function converts character offset to byte offset. More...

static bool	textarea_replace_text_internal (struct textarea ta, size_t b_start, size_t b_end, const char rep, size_t rep_len, bool add_to_clipboard, int byte_delta, struct rect r)
	Perform actual text replacment in a textarea. More...

static bool	textarea_copy_to_undo_buffer (struct textarea *ta, size_t b_start, size_t b_end, size_t rep_len)
	Update undo buffer by adding any text to be replaced, and allocating space as appropriate. More...

static bool	textarea_replace_text (struct textarea ta, size_t b_start, size_t b_end, const char rep, size_t rep_len, bool add_to_clipboard, int byte_delta, struct rect r)
	Replace text in a textarea, updating undo buffer. More...

static bool	textarea_undo (struct textarea ta, bool forward, unsigned int caret, struct rect *r)
	Undo or redo previous change. More...

static bool	textarea_drag_end (struct textarea *ta, browser_mouse_state mouse, int x, int y)
	Handles the end of a drag operation. More...

static void	textarea_setup_text_offsets (struct textarea *ta)
	Setup text offsets after height / border / padding change. More...

static void	textarea_set_text_style (struct textarea ta, const plot_font_style_t fstyle, colour selected_text, colour selected_bg)
	Set font styles up for a textarea. More...

struct textarea *	textarea_create (const textarea_flags flags, const textarea_setup setup, textarea_client_callback callback, void data)
	Create a text area. More...

void	textarea_destroy (struct textarea *ta)
	Destroy a text area. More...

bool	textarea_set_text (struct textarea ta, const char text)
	Set the text in a text area, discarding any current text. More...

bool	textarea_drop_text (struct textarea ta, const char text, size_t text_length)
	Insert the text in a text area at the caret, replacing any selection. More...

int	textarea_get_text (struct textarea ta, char buf, unsigned int len)
	Extract the text from a text area. More...

const char *	textarea_data (struct textarea ta, unsigned int len)
	Access text data in a text area. More...

bool	textarea_set_caret (struct textarea *ta, int caret)
	Set the caret's position. More...

void	textarea_redraw (struct textarea ta, int x, int y, colour bg, float scale, const struct rect clip, const struct redraw_context *ctx)
	Handle redraw requests for text areas. More...

bool	textarea_keypress (struct textarea *ta, uint32_t key)
	Key press handling for text areas. More...

static textarea_mouse_status	textarea_mouse_scrollbar_action (struct textarea *ta, browser_mouse_state mouse, int x, int y)

textarea_mouse_status	textarea_mouse_action (struct textarea *ta, browser_mouse_state mouse, int x, int y)
	Handles all kinds of mouse action. More...

bool	textarea_clear_selection (struct textarea *ta)
	Clear any selection in the textarea. More...

char *	textarea_get_selection (struct textarea *ta)
	Get selected text. More...

void	textarea_get_dimensions (struct textarea ta, int width, int *height)
	Gets the dimensions of a textarea. More...

void	textarea_set_dimensions (struct textarea *ta, int width, int height)
	Set the dimensions of a textarea. More...

void	textarea_set_layout (struct textarea ta, const plot_font_style_t fstyle, int width, int height, int top, int right, int bottom, int left)
	Set the dimensions and padding of a textarea. More...

bool	textarea_scroll (struct textarea *ta, int scrx, int scry)
	Scroll a textarea by an amount. More...

Variables
static plot_style_t	pstyle_stroke_caret

Detailed Description

Single/Multi-line UTF-8 text area implementation.

Definition in file textarea.c.

Macro Definition Documentation

◆ CARET_COLOR

#define CARET_COLOR 0x0000FF

Definition at line 44 of file textarea.c.

◆ LINE_CHUNK_SIZE

#define LINE_CHUNK_SIZE 32

Definition at line 140 of file textarea.c.

◆ PASSWORD_REPLACEMENT

#define PASSWORD_REPLACEMENT "\xe2\x80\xa2"

Definition at line 118 of file textarea.c.

◆ PASSWORD_REPLACEMENT_W

#define PASSWORD_REPLACEMENT_W (sizeof(PASSWORD_REPLACEMENT) - 1)

Definition at line 119 of file textarea.c.

◆ TA_ALLOC_STEP

#define TA_ALLOC_STEP 512

Definition at line 45 of file textarea.c.

Function Documentation

◆ textarea_char_to_byte_offset()

static void textarea_char_to_byte_offset	(	struct textarea_utf8 *	text,
		unsigned int	start,
		unsigned int	end,
		size_t *	b_start,
		size_t *	b_end
	)

inlinestatic

Helper for replace_text function converts character offset to byte offset.

text utf8 textarea text object start start character offset end end character offset b_start updated to byte offset of start in text b_end updated to byte offset of end in text

Definition at line 1390 of file textarea.c.

References line_info::b_start, text(), and utf8_next().

Referenced by textarea_replace_text_internal().

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◆ textarea_clear_selection()

bool textarea_clear_selection ( struct textarea * ta )

Clear any selection in the textarea.

Parameters

ta	textarea widget

Returns: true if there was a selection to clear, false otherwise

Definition at line 3205 of file textarea.c.

References line_info::b_start, textarea::bar_x, textarea::bar_y, textarea::border_width, textarea::callback, textarea_msg::caret, textarea::caret_x, textarea::caret_y, textarea_msg::clip, textarea::data, textarea_msg::data, textarea::flags, textarea_msg::have_selection, textarea_msg::height, textarea::line_count, textarea::line_height, textarea::lines, max, min, textarea_msg::pos, textarea_msg::read_only, textarea_msg::redraw, textarea::scroll_x, textarea::scroll_y, SCROLLBAR_WIDTH, textarea::sel_end, textarea::sel_start, textarea_msg::selection, textarea_msg::ta, textarea::text_y_offset, TEXTAREA_INTERNAL_CARET, TEXTAREA_MSG_CARET_UPDATE, TEXTAREA_MSG_REDRAW_REQUEST, TEXTAREA_MSG_SELECTION_REPORT, TEXTAREA_READONLY, textarea_reset_selection(), textarea_msg::type, textarea::vis_height, textarea::vis_width, textarea_msg::x, rect::x0, rect::x1, textarea_msg::y, rect::y0, and rect::y1.

Referenced by html_clear_selection(), html_set_selection(), textarea_keypress(), textarea_mouse_action(), and textarea_select().

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◆ textarea_copy_to_undo_buffer()

static bool textarea_copy_to_undo_buffer	(	struct textarea *	ta,
		size_t	b_start,
		size_t	b_end,
		size_t	rep_len
	)

static

Update undo buffer by adding any text to be replaced, and allocating space as appropriate.

Parameters

ta	Textarea widget
b_start	Start byte index of replaced section (inclusive)
b_end	End byte index of replaced section (exclusive)
rep_len	Byte length of replacement UTF-8 text

Returns: false on memory exhaustion, true otherwise

Definition at line 1543 of file textarea.c.

References textarea_utf8::alloc, textarea_undo_detail::b_end, textarea_undo_detail::b_limit, textarea_undo_detail::b_start, textarea_undo_detail::b_text_start, textarea_utf8::data, textarea_undo::details, textarea_undo::details_alloc, textarea_undo::next_detail, NSLOG, TA_ALLOC_STEP, textarea_undo::text, textarea::text, and textarea::undo.

Referenced by textarea_replace_text().

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◆ textarea_create()

struct textarea * textarea_create	(	const textarea_flags	flags,
		const textarea_setup *	setup,
		textarea_client_callback	callback,
		void *	data
	)

Create a text area.

Parameters

flags	flags controlling the text area creation
setup	textarea settings and style
callback	will be called when textarea wants to redraw
data	user specified data which will be passed to callbacks

Returns: Opaque handle for textarea or 0 on error

Definition at line 1852 of file textarea.c.

References textarea_utf8::alloc, textarea::bar_x, textarea::bar_y, textarea::border_col, textarea_setup::border_col, textarea::border_width, textarea_setup::border_width, textarea::byte_off, textarea::callback, textarea::caret_pos, textarea::caret_x, textarea::caret_y, textarea_utf8::data, textarea::data, textarea_undo::details, textarea_undo::details_alloc, textarea::drag_info, textarea::drag_start, textarea::flags, textarea::h_extent, textarea_setup::height, textarea_undo::last_detail, textarea_utf8::len, textarea::line, textarea::line_count, textarea::line_height, textarea::lines, textarea::lines_alloc_size, textarea_undo::next_detail, nscss_screen_dpi, NSLOG, textarea::pad_bottom, textarea_setup::pad_bottom, textarea::pad_left, textarea_setup::pad_left, textarea::pad_right, textarea_setup::pad_right, textarea::pad_top, textarea_setup::pad_top, textarea::password, PLOT_STYLE_SCALE, textarea::scroll_x, textarea::scroll_y, textarea::sel_end, textarea::sel_start, textarea_setup::selected_bg, textarea_setup::selected_text, textarea::show, plot_font_style::size, TA_ALLOC_STEP, textarea_undo::text, textarea::text, textarea_setup::text, TEXTAREA_DRAG_NONE, TEXTAREA_MULTILINE, TEXTAREA_PASSWORD, textarea_reflow_multiline(), textarea_reflow_singleline(), textarea_set_text_style(), textarea_setup_text_offsets(), textarea_drag::type, textarea::undo, textarea_utf8::utf8_len, textarea::v_extent, textarea::vis_height, textarea::vis_width, and textarea_setup::width.

Referenced by box_textarea_create_textarea(), toolbar_create(), and treeview__create_textarea().

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◆ textarea_data()

const char * textarea_data	(	struct textarea *	ta,
		unsigned int *	len
	)

Access text data in a text area.

Parameters

[in]	ta	Text area
[out]	len	Returns byte length of returned text, if passed non-NULL.

Returns: textarea string data.

Definition at line 2101 of file textarea.c.

References textarea_utf8::data, textarea_utf8::len, and textarea::text.

Referenced by treeview__search_update_display().

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◆ textarea_destroy()

void textarea_destroy ( struct textarea * ta )

Destroy a text area.

Parameters

ta	Text area to destroy

Definition at line 1975 of file textarea.c.

References textarea::bar_x, textarea::bar_y, textarea_utf8::data, textarea_undo::details, textarea::flags, textarea::lines, textarea::password, scrollbar_destroy(), textarea_undo::text, textarea::text, TEXTAREA_PASSWORD, and textarea::undo.

Referenced by form_free_control(), toolbar_destroy(), treeview_destroy(), treeview_edit_cancel(), and treeview_edit_node_at_point().

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◆ textarea_drag_end()

static bool textarea_drag_end	(	struct textarea *	ta,
		browser_mouse_state	mouse,
		int	x,
		int	y
	)

static

Handles the end of a drag operation.

Parameters

ta	Text area
mouse	the mouse state at drag end moment
x	X coordinate
y	Y coordinate

Returns: true if drag end was handled false otherwise

Definition at line 1744 of file textarea.c.

References textarea_undo_detail::b_end, textarea::bar_x, textarea::border_width, textarea::callback, textarea_drag::data, textarea::data, textarea_msg::data, textarea_msg::drag, textarea::drag_info, textarea::drag_start, textarea_drag::scrollbar, scrollbar_mouse_drag_end(), SCROLLBAR_WIDTH, textarea_msg::ta, TEXTAREA_DRAG_NONE, TEXTAREA_DRAG_SCROLLBAR, TEXTAREA_DRAG_SELECTION, textarea_get_b_off_xy(), TEXTAREA_MSG_DRAG_REPORT, textarea_select(), textarea_drag::type, textarea_msg::type, textarea::vis_height, textarea::vis_width, textarea_msg::x, and textarea_msg::y.

Referenced by textarea_mouse_action().

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◆ textarea_drop_text()

bool textarea_drop_text	(	struct textarea *	ta,
		const char *	text,
		size_t	text_length
	)

Insert the text in a text area at the caret, replacing any selection.

Parameters

ta	Text area
text	UTF-8 text to set text area's contents to
text_length	length of text.

Returns: true on success, false on memory exhaustion or if ta lacks caret

< Redraw rectangle

Definition at line 2032 of file textarea.c.

References textarea::callback, textarea::data, textarea_msg::data, textarea::flags, textarea_msg::redraw, textarea::sel_end, textarea::sel_start, textarea_msg::ta, text(), textarea_get_caret(), TEXTAREA_MSG_REDRAW_REQUEST, TEXTAREA_READONLY, textarea_replace_text(), textarea_set_caret_internal(), textarea_msg::type, textarea::vis_height, textarea::vis_width, rect::x0, rect::x1, rect::y0, and rect::y1.

Referenced by html_drop_file_at_point().

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◆ textarea_get_b_off_xy()

static size_t textarea_get_b_off_xy	(	struct textarea *	ta,
		int	x,
		int	y,
		bool	visible
	)

static

get byte offset from the beginning of the text for some coordinates

Parameters

ta	textarea widget
x	X coordinate
y	Y coordinate
visible	true iff (x,y) is wrt visiable area, false for global

Returns: byte offset

Definition at line 1232 of file textarea.c.

References line_info::b_length, line_info::b_start, textarea::border_width, textarea_utf8::data, textarea::flags, textarea::fstyle, guit, netsurf_table::layout, line(), textarea::line_count, textarea::line_height, textarea::lines, textarea::pad_left, textarea::pad_top, gui_layout_table::position, textarea::scroll_x, textarea::scroll_y, textarea::show, and TEXTAREA_MULTILINE.

Referenced by textarea_drag_end(), textarea_mouse_action(), and textarea_set_caret_xy().

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◆ textarea_get_caret()

static int textarea_get_caret ( struct textarea * ta )

static

Get the caret's position.

Parameters

ta Text area

Returns: 0-based byte offset of caret location, or -1 on error

Definition at line 226 of file textarea.c.

References line_info::b_start, textarea::byte_off, textarea::caret_pos, textarea_utf8::len, textarea::line, textarea::line_count, textarea::lines, textarea::show, textarea_msg::ta, textarea::text, textarea_set_caret(), and textarea_utf8::utf8_len.

Referenced by textarea_drop_text(), textarea_keypress(), textarea_mouse_action(), textarea_select_fragment(), textarea_select_paragraph(), and textarea_set_caret_internal().

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◆ textarea_get_dimensions()

void textarea_get_dimensions	(	struct textarea *	ta,
		int *	width,
		int *	height
	)

Gets the dimensions of a textarea.

Parameters

ta	textarea widget
width	if not NULL, gets updated to the width of the textarea
height	if not NULL, gets updated to the height of the textarea

Definition at line 3308 of file textarea.c.

References height, textarea::vis_height, textarea::vis_width, and width.

◆ textarea_get_selection()

char * textarea_get_selection ( struct textarea * ta )

Get selected text.

ownership of the returned string is passed to caller which needs to free it.

Parameters

ta	Textarea widget

Returns: Selected text, or NULL if none.

Definition at line 3278 of file textarea.c.

References textarea_utf8::data, textarea::sel_end, textarea::sel_start, and textarea::show.

Referenced by html_get_selection().

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◆ textarea_get_text()

int textarea_get_text	(	struct textarea *	ta,
		char *	buf,
		unsigned int	len
	)

Extract the text from a text area.

Parameters

ta	Text area
buf	Pointer to buffer to receive data, or NULL to read length required (includes trailing '\0')
len	Length (bytes) of buffer pointed to by buf, or 0 to read length

Returns: Length (bytes) written/required or -1 on error

Definition at line 2078 of file textarea.c.

References textarea_utf8::data, textarea_utf8::len, NSLOG, textarea::text, and text().

Referenced by toolbar_get_url(), toolbar_key_input(), treeview__search_cancel(), and treeview_edit_done().

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◆ textarea_insert_text()

static bool textarea_insert_text	(	struct textarea *	ta,
		const char *	text,
		size_t	b_off,
		size_t	b_len,
		int *	byte_delta,
		struct rect *	r
	)

static

Insert text into the textarea.

Parameters

ta	Textarea widget
text	UTF-8 text to insert
b_off	0-based byte offset in ta->show's text to insert at
b_len	Byte length of UTF-8 text
byte_delta	Updated to change in byte count in textarea (ta->show)
r	Modified/reduced to area where redraw is required

Returns: false on memory exhaustion, true otherwise

Note: b_off must be for ta->show

Definition at line 1311 of file textarea.c.

References textarea_utf8::alloc, textarea_utf8::data, textarea::flags, textarea_utf8::len, NSLOG, textarea::password, PASSWORD_REPLACEMENT_W, TA_ALLOC_STEP, textarea::text, text(), TEXTAREA_MULTILINE, textarea_normalise_text(), TEXTAREA_PASSWORD, TEXTAREA_READONLY, textarea_reflow_multiline(), textarea_reflow_singleline(), utf8_bounded_byte_length(), utf8_bounded_length(), and textarea_utf8::utf8_len.

Referenced by textarea_replace_text_internal().

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◆ textarea_keypress()

bool textarea_keypress	(	struct textarea *	ta,
		uint32_t	key
	)

Key press handling for text areas.

Parameters

ta	The text area which got the keypress
key	The ucs4 character codepoint

Returns: true if the keypress is dealt with, false otherwise.

< Redraw rectangle

Definition at line 2450 of file textarea.c.

References line_info::b_length, line_info::b_start, textarea::bar_x, textarea::bar_y, textarea::border_width, textarea::byte_off, textarea::callback, textarea::caret_pos, textarea::caret_x, netsurf_table::clipboard, clipboard, textarea_utf8::data, textarea::data, textarea_msg::data, textarea::flags, gui_clipboard_table::get, guit, textarea::h_extent, textarea_utf8::len, textarea::line, line(), textarea::line_count, textarea::line_height, textarea::lines, NS_KEY_CLEAR_SELECTION, NS_KEY_COPY_SELECTION, NS_KEY_CR, NS_KEY_CUT_SELECTION, NS_KEY_DELETE_LEFT, NS_KEY_DELETE_LINE, NS_KEY_DELETE_LINE_END, NS_KEY_DELETE_LINE_START, NS_KEY_DELETE_RIGHT, NS_KEY_DELETE_WORD_LEFT, NS_KEY_DELETE_WORD_RIGHT, NS_KEY_DOWN, NS_KEY_ESCAPE, NS_KEY_LEFT, NS_KEY_LINE_END, NS_KEY_LINE_START, NS_KEY_NL, NS_KEY_PAGE_DOWN, NS_KEY_PAGE_UP, NS_KEY_PASTE, NS_KEY_REDO, NS_KEY_RIGHT, NS_KEY_SELECT_ALL, NS_KEY_TEXT_END, NS_KEY_TEXT_START, NS_KEY_UNDO, NS_KEY_UP, NS_KEY_WORD_LEFT, NS_KEY_WORD_RIGHT, textarea::pad_bottom, textarea::pad_top, textarea_msg::redraw, textarea::sel_end, textarea::sel_start, textarea::show, textarea_msg::ta, textarea::text, textarea::text_y_offset_baseline, textarea_clear_selection(), textarea_get_caret(), TEXTAREA_MSG_REDRAW_REQUEST, TEXTAREA_MULTILINE, TEXTAREA_PASSWORD, TEXTAREA_READONLY, textarea_replace_text(), textarea_reset_selection(), textarea_scroll(), textarea_select(), textarea_set_caret_internal(), textarea_set_caret_xy(), textarea_undo(), textarea_msg::type, utf8_from_ucs4(), utf8_next(), utf8_prev(), textarea::v_extent, textarea::vis_height, textarea::vis_width, rect::x0, rect::x1, rect::y0, and rect::y1.

Referenced by box_textarea_keypress(), toolbar_key_input(), and treeview_keypress().

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◆ textarea_mouse_action()

textarea_mouse_status textarea_mouse_action	(	struct textarea *	ta,
		browser_mouse_state	mouse,
		int	x,
		int	y
	)

Handles all kinds of mouse action.

Parameters

ta	Text area
mouse	the mouse state at action moment
x	X coordinate
y	Y coordinate

Returns: the textarea mouse status

Definition at line 3069 of file textarea.c.

References textarea::bar_x, textarea::bar_y, textarea::border_width, BROWSER_MOUSE_DOUBLE_CLICK, BROWSER_MOUSE_DRAG_1, BROWSER_MOUSE_DRAG_2, BROWSER_MOUSE_HOLDING_1, BROWSER_MOUSE_HOLDING_2, BROWSER_MOUSE_HOVER, BROWSER_MOUSE_PRESS_1, BROWSER_MOUSE_PRESS_2, BROWSER_MOUSE_TRIPLE_CLICK, textarea::callback, textarea::data, textarea_msg::data, textarea_msg::drag, textarea::drag_info, textarea::drag_start, textarea::flags, SCROLLBAR_WIDTH, textarea::sel_end, textarea::sel_start, textarea_msg::ta, textarea_clear_selection(), textarea_drag_end(), TEXTAREA_DRAG_NONE, TEXTAREA_DRAG_SELECTION, textarea_get_b_off_xy(), textarea_get_caret(), TEXTAREA_MOUSE_EDITOR, TEXTAREA_MOUSE_NONE, textarea_mouse_scrollbar_action(), TEXTAREA_MOUSE_SELECTION, TEXTAREA_MOUSE_USED, TEXTAREA_MSG_DRAG_REPORT, TEXTAREA_MULTILINE, textarea_scroll(), textarea_select(), textarea_select_fragment(), textarea_select_paragraph(), textarea_set_caret_internal(), textarea_set_caret_xy(), textarea_drag::type, textarea_msg::type, textarea::vis_height, textarea::vis_width, textarea_msg::x, and textarea_msg::y.

Referenced by gadget_mouse_action(), html_drop_file_at_point(), mouse_action_drag_textarea(), toolbar_mouse_input(), treeview_edit_node_at_point(), and treeview_mouse_action().

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◆ textarea_mouse_scrollbar_action()

static textarea_mouse_status textarea_mouse_scrollbar_action	(	struct textarea *	ta,
		browser_mouse_state	mouse,
		int	x,
		int	y
	)

static

Definition at line 3010 of file textarea.c.

References textarea::bar_x, textarea::bar_y, textarea::border_width, textarea_drag::data, textarea::drag_info, textarea_drag::scrollbar, scrollbar_mouse_action(), SCROLLBAR_MOUSE_USED, SCROLLBAR_WIDTH, TEXTAREA_DRAG_NONE, TEXTAREA_DRAG_SCROLLBAR, TEXTAREA_MOUSE_NONE, TEXTAREA_MOUSE_SCR_USED, textarea_drag::type, textarea::vis_height, and textarea::vis_width.

Referenced by textarea_mouse_action().

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◆ textarea_normalise_text()

static void textarea_normalise_text	(	struct textarea *	ta,
		unsigned int	b_start,
		unsigned int	b_len
	)

static

Normalises any line endings within the text, replacing CRLF or CR with LF as necessary.

If the textarea is single line, then all linebreaks are converted into spaces.

Parameters

ta	Text area
b_start	Byte offset to start at
b_len	Byte length to check

Definition at line 166 of file textarea.c.

References textarea::callback, textarea_utf8::data, textarea::data, textarea_msg::data, textarea::flags, textarea_utf8::len, textarea_msg::len, textarea_msg::modified, textarea_msg::ta, textarea::text, textarea_msg::text, TEXTAREA_MSG_TEXT_MODIFIED, TEXTAREA_MULTILINE, textarea_msg::type, and textarea_utf8::utf8_len.

Referenced by textarea_insert_text(), textarea_replace_text_internal(), and textarea_set_text().

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◆ textarea_redraw()

void textarea_redraw	(	struct textarea *	ta,
		int	x,
		int	y,
		colour	bg,
		float	scale,
		const struct rect *	clip,
		const struct redraw_context *	ctx
	)

Handle redraw requests for text areas.

Parameters

ta	textarea to render
x	x coordinate of textarea top
y	y coordinate of textarea left
bg	background colour under textarea
scale	scale to render at
clip	clip rectangle
ctx	current redraw context

Definition at line 2131 of file textarea.c.

References line_info::b_length, line_info::b_start, plot_font_style::background, textarea::bar_x, textarea::bar_y, textarea::border_col, textarea::border_width, textarea::byte_off, textarea::caret_pos, textarea::caret_x, textarea::caret_y, clip(), plotter_table::clip, textarea_utf8::data, plot_style_s::fill_colour, textarea::flags, textarea::fstyle, guit, netsurf_table::layout, line(), plotter_table::line, textarea::line_count, line_height(), textarea::line_height, textarea::lines, NS_TRANSPARENT, textarea::pad_left, redraw_context::plot, PLOT_OP_TYPE_NONE, PLOT_OP_TYPE_SOLID, pstyle_stroke_caret, plotter_table::rectangle, textarea::scroll_x, textarea::scroll_y, scrollbar_redraw(), SCROLLBAR_WIDTH, textarea::sel_end, textarea::sel_fstyle, textarea::sel_start, textarea::show, plot_font_style::size, plot_style_s::stroke_type, plotter_table::text, textarea::text_y_offset, textarea::text_y_offset_baseline, TEXTAREA_INTERNAL_CARET, textarea::vis_height, textarea::vis_width, line_info::width, gui_layout_table::width, rect::x0, rect::x1, rect::y0, and rect::y1.

Referenced by html_redraw_box(), toolbar_redraw(), and treeview_redraw().

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◆ textarea_reflow_multiline()

static bool textarea_reflow_multiline	(	struct textarea *	ta,
		const size_t	b_start,
		const int	b_length,
		struct rect *	r
	)

static

Reflow a multiline textarea from the given line onwards.

Parameters

ta	Textarea to reflow
b_start	0-based byte offset in ta->text to start of modification
b_length	Byte length of change in textarea text
r	Modified/reduced to area where redraw is required

Returns: true on success false otherwise

Definition at line 916 of file textarea.c.

References line_info::b_length, line_info::b_start, textarea::bar_x, textarea::bar_y, textarea::border_width, textarea_utf8::data, textarea::flags, textarea::fstyle, guit, textarea::h_extent, netsurf_table::layout, textarea_utf8::len, line(), LINE_CHUNK_SIZE, textarea::line_count, textarea::line_height, textarea::lines, textarea::lines_alloc_size, max, min, NSERROR_OK, NSLOG, textarea::pad_bottom, textarea::pad_left, textarea::pad_right, textarea::pad_top, textarea::scroll_x, textarea::scroll_y, scrollbar_create(), scrollbar_destroy(), scrollbar_make_pair(), scrollbar_set_extents(), SCROLLBAR_WIDTH, gui_layout_table::split, textarea::text, text(), textarea::text_y_offset, TEXTAREA_MULTILINE, textarea_scrollbar_callback(), textarea::v_extent, textarea::vis_height, textarea::vis_width, line_info::width, gui_layout_table::width, rect::x0, rect::y0, and rect::y1.

Referenced by textarea_create(), textarea_insert_text(), textarea_replace_text_internal(), textarea_set_dimensions(), textarea_set_layout(), and textarea_set_text().

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◆ textarea_reflow_singleline()

static bool textarea_reflow_singleline	(	struct textarea *	ta,
		size_t	b_off,
		struct rect *	r
	)

static

Reflow a single line textarea.

Parameters

ta	Textarea widget to reflow
b_off	0-based byte offset in ta->show's text to start of modification
r	Modified/reduced to area where redraw is required

Returns: true on success false otherwise

Definition at line 816 of file textarea.c.

References textarea_utf8::alloc, line_info::b_length, line_info::b_start, textarea::border_width, textarea_utf8::data, textarea::flags, textarea::fstyle, guit, textarea::h_extent, netsurf_table::layout, textarea_utf8::len, LINE_CHUNK_SIZE, textarea::line_count, textarea::lines, textarea::lines_alloc_size, max, min, NSLOG, textarea::pad_left, textarea::pad_right, textarea::password, PASSWORD_REPLACEMENT, PASSWORD_REPLACEMENT_W, textarea::scroll_x, textarea::show, TA_ALLOC_STEP, textarea::text, TEXTAREA_MULTILINE, TEXTAREA_PASSWORD, textarea_utf8::utf8_len, textarea::vis_width, line_info::width, gui_layout_table::width, rect::x0, and rect::x1.

Referenced by textarea_create(), textarea_insert_text(), textarea_replace_text_internal(), textarea_set_dimensions(), textarea_set_layout(), and textarea_set_text().

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◆ textarea_replace_text()

static bool textarea_replace_text	(	struct textarea *	ta,
		size_t	b_start,
		size_t	b_end,
		const char *	rep,
		size_t	rep_len,
		bool	add_to_clipboard,
		int *	byte_delta,
		struct rect *	r
	)

static

Replace text in a textarea, updating undo buffer.

Parameters

ta	Textarea widget
b_start	Start byte index of replaced section (inclusive)
b_end	End byte index of replaced section (exclusive)
rep	Replacement UTF-8 text to insert
rep_len	Byte length of replacement UTF-8 text
add_to_clipboard	True if replaced text to be added to clipboard
byte_delta	Updated to change in byte count in textarea (ta->show)
r	Updated to area where redraw is required

Returns: false on memory exhaustion, true otherwise

Note, b_start and b_end must be the byte offsets in ta->show, so in the password textarea case, they are for ta->password.

Definition at line 1618 of file textarea.c.

References textarea_undo_detail::b_end, textarea_undo_detail::b_start, textarea_undo_detail::b_text_end, textarea_undo::details, textarea::flags, textarea_undo::last_detail, textarea_undo::next_detail, textarea_copy_to_undo_buffer(), TEXTAREA_PASSWORD, textarea_replace_text_internal(), and textarea::undo.

Referenced by textarea_drop_text(), and textarea_keypress().

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◆ textarea_replace_text_internal()

static bool textarea_replace_text_internal	(	struct textarea *	ta,
		size_t	b_start,
		size_t	b_end,
		const char *	rep,
		size_t	rep_len,
		bool	add_to_clipboard,
		int *	byte_delta,
		struct rect *	r
	)

static

Perform actual text replacment in a textarea.

Parameters

ta	Textarea widget
b_start	Start byte index of replaced section (inclusive)
b_end	End byte index of replaced section (exclusive)
rep	Replacement UTF-8 text to insert
rep_len	Byte length of replacement UTF-8 text
add_to_clipboard	True iff replaced text to be added to clipboard
byte_delta	Updated to change in byte count in textarea (ta->show)
r	Updated to area where redraw is required

Returns: false on memory exhaustion, true otherwise

Note, b_start and b_end must be the byte offsets in ta->show, so in the password textarea case, they are for ta->password.

Definition at line 1424 of file textarea.c.

References textarea_utf8::alloc, line_info::b_start, textarea::bar_x, textarea::bar_y, textarea::border_width, netsurf_table::clipboard, textarea_utf8::data, textarea::flags, guit, textarea_utf8::len, NSLOG, textarea::password, PASSWORD_REPLACEMENT_W, SCROLLBAR_WIDTH, gui_clipboard_table::set, textarea::show, TA_ALLOC_STEP, textarea::text, textarea_char_to_byte_offset(), textarea_insert_text(), TEXTAREA_MULTILINE, textarea_normalise_text(), TEXTAREA_PASSWORD, TEXTAREA_READONLY, textarea_reflow_multiline(), textarea_reflow_singleline(), utf8_bounded_length(), textarea_utf8::utf8_len, utf8_length(), textarea::vis_height, textarea::vis_width, rect::x0, rect::x1, rect::y0, and rect::y1.

Referenced by textarea_replace_text(), and textarea_undo().

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◆ textarea_reset_selection()

static void textarea_reset_selection ( struct textarea * ta )

inlinestatic

Reset the selection (no redraw)

Parameters

ta Text area

Definition at line 214 of file textarea.c.

References textarea::sel_end, textarea::sel_start, and textarea_msg::ta.

Referenced by textarea_clear_selection(), and textarea_keypress().

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◆ textarea_scroll()

bool textarea_scroll	(	struct textarea *	ta,
		int	scrx,
		int	scry
	)

Scroll a textarea by an amount.

Only does anything if multi-line textarea has scrollbars. If it scrolls, it will emit a redraw request.

Parameters

ta	textarea widget
scrx	number of px try to scroll in x direction
scry	number of px try to scroll in y direction

Returns: true iff the textarea was scrolled

Definition at line 3367 of file textarea.c.

References textarea::bar_x, textarea::bar_y, textarea::border_width, textarea::flags, textarea::h_extent, textarea::scroll_x, scrollbar_scroll(), TEXTAREA_MULTILINE, and textarea::vis_width.

Referenced by html_scroll_at_point(), textarea_keypress(), and textarea_mouse_action().

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◆ textarea_scroll_visible()

static bool textarea_scroll_visible ( struct textarea * ta )

static

Scrolls a textarea to make the caret visible (doesn't perform a redraw)

Parameters

ta	The text area to be scrolled

Returns: true if textarea was scrolled false otherwise

Definition at line 251 of file textarea.c.

References textarea::bar_x, textarea::bar_y, textarea::border_width, textarea::byte_off, textarea::caret_pos, textarea::caret_x, textarea::caret_y, textarea::flags, textarea::h_extent, textarea::line_height, textarea::pad_bottom, textarea::pad_left, textarea::pad_right, textarea::pad_top, textarea::scroll_x, textarea::scroll_y, scrollbar_get_offset(), scrollbar_set(), SCROLLBAR_WIDTH, textarea_msg::ta, TEXTAREA_MULTILINE, textarea::v_extent, textarea::vis_height, textarea::vis_width, textarea_msg::x, and textarea_msg::y.

Referenced by textarea_set_caret_internal().

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◆ textarea_scrollbar_callback()

static void textarea_scrollbar_callback	(	void *	client_data,
		struct scrollbar_msg_data *	scrollbar_data
	)

static

Callback for scrollbar widget.

Definition at line 719 of file textarea.c.

References textarea::bar_x, textarea::bar_y, textarea::border_width, textarea::byte_off, textarea::callback, textarea_msg::caret, textarea::caret_pos, textarea::caret_x, textarea::caret_y, textarea_msg::clip, textarea_drag::data, textarea::data, textarea_msg::data, textarea_msg::drag, textarea::drag_info, textarea::flags, textarea_msg::height, textarea::line_height, scrollbar_msg_data::msg, textarea_msg::pos, textarea_msg::redraw, textarea::scroll_x, textarea::scroll_y, scrollbar_msg_data::scrollbar, textarea_drag::scrollbar, scrollbar_get_offset(), SCROLLBAR_MSG_MOVED, SCROLLBAR_MSG_SCROLL_FINISHED, SCROLLBAR_MSG_SCROLL_START, SCROLLBAR_WIDTH, textarea::sel_start, textarea_msg::ta, TEXTAREA_DRAG_NONE, TEXTAREA_DRAG_SCROLLBAR, TEXTAREA_INTERNAL_CARET, TEXTAREA_MSG_CARET_UPDATE, TEXTAREA_MSG_DRAG_REPORT, TEXTAREA_MSG_REDRAW_REQUEST, textarea_drag::type, textarea_msg::type, textarea::vis_height, textarea::vis_width, textarea_msg::x, rect::x0, rect::x1, textarea_msg::y, rect::y0, and rect::y1.

Referenced by textarea_reflow_multiline().

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◆ textarea_select()

static bool textarea_select	(	struct textarea *	ta,
		int	b_start,
		int	b_end,
		bool	force_redraw
	)

static

Selects a character range in the textarea and redraws it.

Parameters

ta	Text area
b_start	First character (inclusive) byte offset
b_end	Last character (exclusive) byte offset
force_redraw	Redraw whether selection changed or not

Returns: true on success false otherwise

Definition at line 503 of file textarea.c.

References line_info::b_start, textarea::bar_x, textarea::bar_y, textarea::border_width, textarea::callback, textarea_msg::caret, textarea::data, textarea_msg::data, textarea::flags, textarea_msg::have_selection, textarea::line_count, textarea::line_height, textarea::lines, max, min, textarea_msg::read_only, textarea_msg::redraw, textarea::scroll_y, SCROLLBAR_WIDTH, textarea::sel_end, textarea::sel_start, textarea_msg::selection, textarea_msg::ta, textarea::text_y_offset, textarea_msg::TEXTAREA_CARET_HIDE, textarea_clear_selection(), TEXTAREA_INTERNAL_CARET, TEXTAREA_MSG_CARET_UPDATE, TEXTAREA_MSG_REDRAW_REQUEST, TEXTAREA_MSG_SELECTION_REPORT, TEXTAREA_READONLY, textarea_msg::type, textarea::vis_height, textarea::vis_width, rect::x0, rect::x1, rect::y0, and rect::y1.

Referenced by textarea_drag_end(), textarea_keypress(), textarea_mouse_action(), textarea_select_fragment(), and textarea_select_paragraph().

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◆ textarea_select_fragment()

static bool textarea_select_fragment ( struct textarea * ta )

static

Selects a text fragment, relative to current caret position.

Parameters

ta Text area

Returns: True on success, false otherwise

Definition at line 628 of file textarea.c.

References textarea_utf8::data, textarea_utf8::len, textarea::show, textarea_msg::ta, textarea_get_caret(), and textarea_select().

Referenced by textarea_mouse_action().

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◆ textarea_select_paragraph()

static bool textarea_select_paragraph ( struct textarea * ta )

static

Selects paragraph, at current caret position.

Parameters

ta	textarea widget

Returns: True on success, false otherwise

Definition at line 679 of file textarea.c.

References textarea_utf8::data, textarea_utf8::len, textarea::show, textarea_msg::ta, textarea_get_caret(), and textarea_select().

Referenced by textarea_mouse_action().

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◆ textarea_set_caret()

bool textarea_set_caret	(	struct textarea *	ta,
		int	caret
	)

Set the caret's position.

Parameters

ta	Text area
caret	0-based character index to place caret at, -1 removes the caret

Returns: true on success false otherwise

Definition at line 2112 of file textarea.c.

References textarea_utf8::data, textarea_utf8::len, textarea::show, textarea_set_caret_internal(), and utf8_bounded_byte_length().

Referenced by box_textarea_keypress(), textarea_get_caret(), treeview__search_cancel(), and treeview_mouse_action().

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◆ textarea_set_caret_internal()

static bool textarea_set_caret_internal	(	struct textarea *	ta,
		int	caret_b
	)

static

Set the caret position.

Parameters

ta	Text area
caret_b	Byte offset to caret

Returns: true iff caret placement caused a scroll

Definition at line 352 of file textarea.c.

References line_info::b_start, textarea::bar_x, textarea::bar_y, textarea::border_width, textarea::byte_off, textarea::callback, textarea_msg::caret, textarea::caret_pos, textarea::caret_x, textarea::caret_y, textarea_msg::clip, textarea_utf8::data, textarea::data, textarea_msg::data, textarea::flags, textarea::fstyle, guit, textarea_msg::height, height, netsurf_table::layout, textarea_utf8::len, textarea::line, textarea::line_count, textarea::line_height, textarea::lines, max, min, textarea::pad_left, textarea_msg::pos, textarea_msg::redraw, textarea::scroll_x, textarea::scroll_y, SCROLLBAR_WIDTH, textarea::show, textarea_msg::ta, textarea::text_y_offset, textarea_get_caret(), TEXTAREA_INTERNAL_CARET, TEXTAREA_MSG_CARET_UPDATE, TEXTAREA_MSG_REDRAW_REQUEST, TEXTAREA_MULTILINE, textarea_scroll_visible(), textarea_msg::type, textarea::vis_height, textarea::vis_width, width, gui_layout_table::width, textarea_msg::x, rect::x0, rect::x1, textarea_msg::y, rect::y0, and rect::y1.

Referenced by textarea_drop_text(), textarea_keypress(), textarea_mouse_action(), textarea_set_caret(), and textarea_set_caret_xy().

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◆ textarea_set_caret_xy()

static bool textarea_set_caret_xy	(	struct textarea *	ta,
		int	x,
		int	y,
		bool	visible
	)

static

Set the caret's position.

Parameters

ta	textarea widget
x	X coordinate
y	Y coordinate
visible	true iff (x,y) is wrt visiable area, false for global

Returns: true iff caret placement caused a scroll

Definition at line 1289 of file textarea.c.

References textarea_get_b_off_xy(), and textarea_set_caret_internal().

Referenced by textarea_keypress(), and textarea_mouse_action().

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◆ textarea_set_dimensions()

void textarea_set_dimensions	(	struct textarea *	ta,
		int	width,
		int	height
	)

Set the dimensions of a textarea.

This causes a reflow of the text and does not emit a redraw request. Up to client to call textarea_redraw.

Parameters

ta	textarea widget
width	the new width of the textarea
height	the new height of the textarea

Definition at line 3318 of file textarea.c.

References textarea::flags, height, textarea_utf8::len, textarea::show, TEXTAREA_MULTILINE, textarea_reflow_multiline(), textarea_reflow_singleline(), textarea_setup_text_offsets(), textarea::vis_height, textarea::vis_width, and width.

Referenced by toolbar_set_dimensions(), and toolbar_set_width().

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◆ textarea_set_layout()

void textarea_set_layout	(	struct textarea *	ta,
		const plot_font_style_t *	fstyle,
		int	width,
		int	height,
		int	top,
		int	right,
		int	bottom,
		int	left
	)

Set the dimensions and padding of a textarea.

This causes a reflow of the text. Does not emit a redraw request. Up to client to call textarea_redraw.

Parameters

ta	textarea widget
width	the new width of the textarea
height	the new height of the textarea
top	the new top padding of the textarea
right	the new right padding of the textarea
bottom	the new bottom padding of the textarea
left	the new left padding of the textarea

Definition at line 3336 of file textarea.c.

References plot_font_style::background, textarea::bar_x, textarea::bar_y, textarea::flags, plot_font_style::foreground, height, textarea_utf8::len, textarea::pad_bottom, textarea::pad_left, textarea::pad_right, textarea::pad_top, SCROLLBAR_WIDTH, textarea::sel_fstyle, textarea::show, TEXTAREA_MULTILINE, textarea_reflow_multiline(), textarea_reflow_singleline(), textarea_set_text_style(), textarea_setup_text_offsets(), textarea::vis_height, textarea::vis_width, and width.

Referenced by layout_block_context().

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◆ textarea_set_text()

bool textarea_set_text	(	struct textarea *	ta,
		const char *	text
	)

Set the text in a text area, discarding any current text.

Parameters

ta	Text area
text	UTF-8 text to set text area's contents to

Returns: true on success, false on memory exhaustion

Definition at line 1995 of file textarea.c.

References textarea_utf8::alloc, textarea_utf8::data, textarea::flags, textarea_undo::last_detail, textarea_utf8::len, textarea_undo::next_detail, NSLOG, TA_ALLOC_STEP, textarea::text, text(), TEXTAREA_MULTILINE, textarea_normalise_text(), textarea_reflow_multiline(), textarea_reflow_singleline(), textarea::undo, textarea_utf8::utf8_len, and utf8_length().

Referenced by box_textarea_create_textarea(), form_gadget_sync_with_dom(), toolbar_set_url(), treeview__search_cancel(), treeview_edit_node_at_point(), and treeview_set_search_string().

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◆ textarea_set_text_style()

static void textarea_set_text_style	(	struct textarea *	ta,
		const plot_font_style_t *	fstyle,
		colour	selected_text,
		colour	selected_bg
	)

static

Set font styles up for a textarea.

Parameters

[in]	ta	Textarea to update.
[in]	fstyle	Font style to set in textarea.
[in]	selected_text	Textarea selected text colour.
[in]	selected_bg	Textarea selection background colour.

Definition at line 1837 of file textarea.c.

References plot_font_style::background, plot_font_style::foreground, textarea::fstyle, textarea::sel_fstyle, and textarea_msg::ta.

Referenced by textarea_create(), and textarea_set_layout().

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◆ textarea_setup_text_offsets()

static void textarea_setup_text_offsets ( struct textarea * ta )

static

Setup text offsets after height / border / padding change.

Parameters

ta	Textarea widget

Definition at line 1802 of file textarea.c.

References textarea::border_width, textarea::flags, textarea::fstyle, textarea::line_height, nscss_screen_dpi, textarea::pad_top, PLOT_STYLE_SCALE, plot_font_style::size, textarea_msg::ta, textarea::text_y_offset, textarea::text_y_offset_baseline, TEXTAREA_MULTILINE, and textarea::vis_height.

Referenced by textarea_create(), textarea_set_dimensions(), and textarea_set_layout().

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◆ textarea_undo()

static bool textarea_undo	(	struct textarea *	ta,
		bool	forward,
		unsigned int *	caret,
		struct rect *	r
	)

static

Undo or redo previous change.

Parameters

ta	Textarea widget
forward	Iff true, redo, else undo
caret	Updated to new caret pos in textarea (ta->show)
r	Updated to area where redraw is required

Returns: false if nothing to undo/redo, true otherwise

Definition at line 1660 of file textarea.c.

References textarea_undo_detail::b_end, textarea_undo_detail::b_start, textarea_undo_detail::b_text_end, textarea_undo_detail::b_text_start, textarea_utf8::data, textarea_undo::details, textarea::flags, textarea_undo::last_detail, textarea_undo::next_detail, textarea_undo::text, textarea::text, TEXTAREA_PASSWORD, TEXTAREA_READONLY, textarea_replace_text_internal(), and textarea::undo.

Referenced by textarea_keypress().

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Variable Documentation

◆ pstyle_stroke_caret

plot_style_t pstyle_stroke_caret

static

Initial value:

= {
        .stroke_type = PLOT_OP_TYPE_SOLID,
        .stroke_colour = CARET_COLOR,
        .stroke_width = plot_style_int_to_fixed(1),
}

Definition at line 47 of file textarea.c.

Referenced by textarea_redraw().

Data Structures

Macros

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ CARET_COLOR

◆ LINE_CHUNK_SIZE

◆ PASSWORD_REPLACEMENT

◆ PASSWORD_REPLACEMENT_W

◆ TA_ALLOC_STEP

Function Documentation

◆ textarea_char_to_byte_offset()

◆ textarea_clear_selection()

◆ textarea_copy_to_undo_buffer()

◆ textarea_create()

◆ textarea_data()

◆ textarea_destroy()

◆ textarea_drag_end()

◆ textarea_drop_text()

◆ textarea_get_b_off_xy()

◆ textarea_get_caret()

◆ textarea_get_dimensions()

◆ textarea_get_selection()

◆ textarea_get_text()

◆ textarea_insert_text()

◆ textarea_keypress()

◆ textarea_mouse_action()

◆ textarea_mouse_scrollbar_action()

◆ textarea_normalise_text()

◆ textarea_redraw()

◆ textarea_reflow_multiline()

◆ textarea_reflow_singleline()

◆ textarea_replace_text()

◆ textarea_replace_text_internal()

◆ textarea_reset_selection()

◆ textarea_scroll()

◆ textarea_scroll_visible()

◆ textarea_scrollbar_callback()

◆ textarea_select()

◆ textarea_select_fragment()

◆ textarea_select_paragraph()

◆ textarea_set_caret()

◆ textarea_set_caret_internal()

◆ textarea_set_caret_xy()

◆ textarea_set_dimensions()

◆ textarea_set_layout()

◆ textarea_set_text()

◆ textarea_set_text_style()

◆ textarea_setup_text_offsets()

◆ textarea_undo()

Variable Documentation

◆ pstyle_stroke_caret