implementation of HTML table processing and layout. More...

#include <assert.h>
#include <dom/dom.h>
#include "utils/log.h"
#include "utils/utils.h"
#include "utils/talloc.h"
#include "css/utils.h"
#include "html/box.h"
#include "html/table.h"

Include dependency graph for table.c:

Data Structures
struct	border
	Container for border values during table border calculations. More...

Functions
static bool	table_border_is_more_eyecatching (const css_unit_ctx unit_len_ctx, const struct border a, box_type a_src, const struct border *b, box_type b_src)
	Determine if a border style is more eyecatching than another. More...

static void	table_cell_top_process_table (const css_unit_ctx unit_len_ctx, struct box table, struct border a, box_type a_src)
	Process a table. More...

static bool	table_cell_top_process_row (const css_unit_ctx unit_len_ctx, struct box cell, struct box row, struct border a, box_type *a_src)
	Process a row. More...

static bool	table_cell_top_process_group (const css_unit_ctx unit_len_ctx, struct box cell, struct box group, struct border a, box_type *a_src)
	Process a group. More...

static void	table_used_left_border_for_cell (const css_unit_ctx unit_len_ctx, struct box cell)
	Calculate used values of border-left-{style,color,width}. More...

static void	table_used_top_border_for_cell (const css_unit_ctx unit_len_ctx, struct box cell)
	Calculate used values of border-top-{style,color,width}. More...

static void	table_used_right_border_for_cell (const css_unit_ctx unit_len_ctx, struct box cell)
	Calculate used values of border-right-{style,color,width}. More...

static void	table_used_bottom_border_for_cell (const css_unit_ctx unit_len_ctx, struct box cell)
	Calculate used values of border-bottom-{style,color,width}. More...

bool	table_calculate_column_types (const css_unit_ctx unit_len_ctx, struct box table)
	Determine the column width types for a table. More...

void	table_used_border_for_cell (const css_unit_ctx unit_len_ctx, struct box cell)
	Calculate used values of border-{trbl}-{style,color,width} for table cells. More...

Detailed Description

implementation of HTML table processing and layout.

Definition in file table.c.

Function Documentation

◆ table_border_is_more_eyecatching()

static bool table_border_is_more_eyecatching	(	const css_unit_ctx *	unit_len_ctx,
		const struct border *	a,
		box_type	a_src,
		const struct border *	b,
		box_type	b_src
	)

static

Determine if a border style is more eyecatching than another.

Parameters

unit_len_ctx	Length conversion context
a	Reference border style
a_src	Source of a
b	Candidate border style
b_src	Source of b

Returns: True if b is more eyecatching than a

Todo:: COL/COL_GROUP

Todo:: COL/COL_GROUP

Todo:: Currently assumes b satisifies this

Definition at line 62 of file table.c.

References BOX_TABLE, BOX_TABLE_CELL, BOX_TABLE_ROW, BOX_TABLE_ROW_GROUP, fallthrough, border::style, border::unit, and border::width.

Referenced by table_cell_top_process_group(), table_cell_top_process_row(), table_cell_top_process_table(), table_used_bottom_border_for_cell(), table_used_left_border_for_cell(), table_used_right_border_for_cell(), and table_used_top_border_for_cell().

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◆ table_calculate_column_types()

bool table_calculate_column_types	(	const css_unit_ctx *	unit_len_ctx,
		struct box *	table
	)

Determine the column width types for a table.

Parameters

unit_len_ctx	Length conversion context
table	box of type BOX_TABLE

Returns: true on success, false on memory exhaustion

The table->col array is allocated and type and width are filled in for each column.

Definition at line 813 of file table.c.

References BOX_TABLE_CELL, box::children, box::col, box::columns, box::next, NSLOG, column::positioned, box::start_column, box::style, talloc_array, column::type, box::type, type, column::width, and width.

Referenced by layout_minmax_table().

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◆ table_cell_top_process_group()

static bool table_cell_top_process_group	(	const css_unit_ctx *	unit_len_ctx,
		struct box *	cell,
		struct box *	group,
		struct border *	a,
		box_type *	a_src
	)

static

Process a group.

Parameters

unit_len_ctx	Length conversion context
cell	Cell being considered
group	Group to process
a	Current border style for cell
a_src	Source of a

Returns: true if group has non-empty rows, false otherwise

Postcondition: a will be updated with most eyecatching style; a_src will be updated also

Definition at line 322 of file table.c.

References BOX_TABLE_ROW_GROUP, border::c, border::color, box::last, box::prev, box::style, border::style, table_border_is_more_eyecatching(), table_cell_top_process_row(), border::unit, and border::width.

Referenced by table_used_top_border_for_cell().

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◆ table_cell_top_process_row()

static bool table_cell_top_process_row	(	const css_unit_ctx *	unit_len_ctx,
		struct box *	cell,
		struct box *	row,
		struct border *	a,
		box_type *	a_src
	)

static

Process a row.

Parameters

unit_len_ctx	Length conversion context
cell	Cell being considered
row	Row to process
a	Current border style for cell
a_src	Source of a

Returns: true if row has cells, false otherwise

Postcondition: a will be updated with most eyecatching style; a_src will be updated also

Definition at line 211 of file table.c.

References BOX_TABLE_CELL, BOX_TABLE_ROW, border::c, box::children, border::color, box::columns, box::next, box::prev, box::start_column, box::style, border::style, table_border_is_more_eyecatching(), border::unit, and border::width.

Referenced by table_cell_top_process_group(), and table_used_top_border_for_cell().

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◆ table_cell_top_process_table()

static void table_cell_top_process_table	(	const css_unit_ctx *	unit_len_ctx,
		struct box *	table,
		struct border *	a,
		box_type *	a_src
	)

static

Process a table.

Parameters

unit_len_ctx	Length conversion context
table	Table to process
a	Current border style for cell
a_src	Source of a

Postcondition: a will be updated with most eyecatching style; a_src will be updated also

Definition at line 173 of file table.c.

References BOX_TABLE, border::c, border::color, box::style, border::style, table_border_is_more_eyecatching(), border::unit, and border::width.

Referenced by table_used_top_border_for_cell().

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◆ table_used_border_for_cell()

void table_used_border_for_cell	(	const css_unit_ctx *	unit_len_ctx,
		struct box *	cell
	)

Calculate used values of border-{trbl}-{style,color,width} for table cells.

Parameters

unit_len_ctx	Length conversion context
cell	Table cell to consider

Postcondition: cell's border array is populated

Definition at line 988 of file table.c.

References box::border, BOTTOM, BOX_TABLE_CELL, box_border::c, LEFT, RIGHT, box_border::style, box::style, table_used_bottom_border_for_cell(), table_used_left_border_for_cell(), table_used_right_border_for_cell(), table_used_top_border_for_cell(), TOP, box::type, box_border::width, and width.

Referenced by layout_table().

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◆ table_used_bottom_border_for_cell()

static void table_used_bottom_border_for_cell	(	const css_unit_ctx *	unit_len_ctx,
		struct box *	cell
	)

static

Calculate used values of border-bottom-{style,color,width}.

Parameters

unit_len_ctx	Length conversion context
cell	Table cell to consider

Todo:: Can cells span row groups?

Definition at line 723 of file table.c.

References box::border, BOTTOM, BOX_TABLE, BOX_TABLE_CELL, BOX_TABLE_ROW, BOX_TABLE_ROW_GROUP, box_border::c, border::c, border::color, box::next, box::parent, box::rows, box_border::style, box::style, border::style, table_border_is_more_eyecatching(), border::unit, box_border::width, and border::width.

Referenced by table_used_border_for_cell().

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◆ table_used_left_border_for_cell()

static void table_used_left_border_for_cell	(	const css_unit_ctx *	unit_len_ctx,
		struct box *	cell
	)

static

Calculate used values of border-left-{style,color,width}.

Parameters

unit_len_ctx	Length conversion context
cell	Table cell to consider

Todo:: Need column and column_group, too

Todo:: can cells span row groups?

Definition at line 387 of file table.c.

References box::border, BOX_TABLE, BOX_TABLE_CELL, BOX_TABLE_ROW, BOX_TABLE_ROW_GROUP, box_border::c, border::c, box::children, border::color, box::columns, LEFT, box::next, box::parent, box::prev, box::rows, box::start_column, box_border::style, box::style, border::style, table_border_is_more_eyecatching(), border::unit, box_border::width, and border::width.

Referenced by table_used_border_for_cell().

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◆ table_used_right_border_for_cell()

static void table_used_right_border_for_cell	(	const css_unit_ctx *	unit_len_ctx,
		struct box *	cell
	)

static

Calculate used values of border-right-{style,color,width}.

Parameters

unit_len_ctx	Length conversion context
cell	Table cell to consider

Todo:: Need column and column_group, too

Todo:: can cells span row groups?

Definition at line 619 of file table.c.

References box::border, BOX_TABLE, BOX_TABLE_CELL, BOX_TABLE_ROW, BOX_TABLE_ROW_GROUP, box_border::c, border::c, border::color, box::columns, box::next, box::parent, RIGHT, box::rows, box::start_column, box_border::style, box::style, border::style, table_border_is_more_eyecatching(), border::unit, box_border::width, and border::width.

Referenced by table_used_border_for_cell().

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◆ table_used_top_border_for_cell()

static void table_used_top_border_for_cell	(	const css_unit_ctx *	unit_len_ctx,
		struct box *	cell
	)

static

Calculate used values of border-top-{style,color,width}.

Parameters

unit_len_ctx	Length conversion context
cell	Table cell to consider

Definition at line 519 of file table.c.

References box::border, BOX_TABLE_CELL, BOX_TABLE_ROW, BOX_TABLE_ROW_GROUP, box_border::c, border::c, border::color, box::parent, box::prev, box_border::style, box::style, border::style, table_border_is_more_eyecatching(), table_cell_top_process_group(), table_cell_top_process_row(), table_cell_top_process_table(), TOP, border::unit, box_border::width, and border::width.

Referenced by table_used_border_for_cell().

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Data Structures

Functions

Detailed Description

Function Documentation

◆ table_border_is_more_eyecatching()

◆ table_calculate_column_types()

◆ table_cell_top_process_group()

◆ table_cell_top_process_row()

◆ table_cell_top_process_table()

◆ table_used_border_for_cell()

◆ table_used_bottom_border_for_cell()

◆ table_used_left_border_for_cell()

◆ table_used_right_border_for_cell()

◆ table_used_top_border_for_cell()