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/*
* This file is part of LibCSS
* Licensed under the MIT License,
* http://www.opensource.org/licenses/mit-license.php
* Copyright 2009 John-Mark Bell <jmb@netsurf-browser.org>
*/
#ifndef libcss_select_h_
#define libcss_select_h_
#ifdef __cplusplus
extern "C"
{
#endif
#include <libcss/errors.h>
#include <libcss/functypes.h>
#include <libcss/hint.h>
#include <libcss/types.h>
#include <libcss/computed.h>
typedef enum css_pseudo_element {
CSS_PSEUDO_ELEMENT_NONE = 0,
CSS_PSEUDO_ELEMENT_FIRST_LINE = 1,
CSS_PSEUDO_ELEMENT_FIRST_LETTER = 2,
CSS_PSEUDO_ELEMENT_BEFORE = 3,
CSS_PSEUDO_ELEMENT_AFTER = 4,
CSS_PSEUDO_ELEMENT_COUNT = 5 /**< Number of pseudo elements */
} css_pseudo_element;
/**
* Style selection result set
*/
typedef struct css_select_results {
css_allocator_fn alloc;
void *pw;
/**
* Array of pointers to computed styles,
* indexed by css_pseudo_element. If there
* was no styling for a given pseudo element,
* then no computed style will be created and
* the corresponding pointer will be set to NULL
*/
css_computed_style *styles[CSS_PSEUDO_ELEMENT_COUNT];
} css_select_results;
typedef enum css_select_handler_version {
CSS_SELECT_HANDLER_VERSION_1 = 1
} css_select_handler_version;
typedef struct css_select_handler {
/** ABI version of this structure */
uint32_t handler_version;
css_error (*node_name)(void *pw, void *node,
css_qname *qname);
css_error (*node_classes)(void *pw, void *node,
lwc_string ***classes,
uint32_t *n_classes);
css_error (*node_id)(void *pw, void *node,
lwc_string **id);
css_error (*named_ancestor_node)(void *pw, void *node,
const css_qname *qname, void **ancestor);
css_error (*named_parent_node)(void *pw, void *node,
const css_qname *qname, void **parent);
css_error (*named_sibling_node)(void *pw, void *node,
const css_qname *qname, void **sibling);
css_error (*named_generic_sibling_node)(void *pw, void *node,
const css_qname *qname, void **sibling);
css_error (*parent_node)(void *pw, void *node, void **parent);
css_error (*sibling_node)(void *pw, void *node, void **sibling);
css_error (*node_has_name)(void *pw, void *node,
const css_qname *qname, bool *match);
css_error (*node_has_class)(void *pw, void *node,
lwc_string *name, bool *match);
css_error (*node_has_id)(void *pw, void *node,
lwc_string *name, bool *match);
css_error (*node_has_attribute)(void *pw, void *node,
const css_qname *qname, bool *match);
css_error (*node_has_attribute_equal)(void *pw, void *node,
const css_qname *qname, lwc_string *value,
bool *match);
css_error (*node_has_attribute_dashmatch)(void *pw, void *node,
const css_qname *qname, lwc_string *value,
bool *match);
css_error (*node_has_attribute_includes)(void *pw, void *node,
const css_qname *qname, lwc_string *value,
bool *match);
css_error (*node_has_attribute_prefix)(void *pw, void *node,
const css_qname *qname, lwc_string *value,
bool *match);
css_error (*node_has_attribute_suffix)(void *pw, void *node,
const css_qname *qname, lwc_string *value,
bool *match);
css_error (*node_has_attribute_substring)(void *pw, void *node,
const css_qname *qname, lwc_string *value,
bool *match);
css_error (*node_is_root)(void *pw, void *node, bool *match);
css_error (*node_count_siblings)(void *pw, void *node,
bool same_name, bool after, int32_t *count);
css_error (*node_is_empty)(void *pw, void *node, bool *match);
css_error (*node_is_link)(void *pw, void *node, bool *match);
css_error (*node_is_visited)(void *pw, void *node, bool *match);
css_error (*node_is_hover)(void *pw, void *node, bool *match);
css_error (*node_is_active)(void *pw, void *node, bool *match);
css_error (*node_is_focus)(void *pw, void *node, bool *match);
css_error (*node_is_enabled)(void *pw, void *node, bool *match);
css_error (*node_is_disabled)(void *pw, void *node, bool *match);
css_error (*node_is_checked)(void *pw, void *node, bool *match);
css_error (*node_is_target)(void *pw, void *node, bool *match);
css_error (*node_is_lang)(void *pw, void *node,
lwc_string *lang, bool *match);
css_error (*node_presentational_hint)(void *pw, void *node,
uint32_t property, css_hint *hint);
css_error (*ua_default_for_property)(void *pw, uint32_t property,
css_hint *hint);
css_error (*compute_font_size)(void *pw, const css_hint *parent,
css_hint *size);
} css_select_handler;
/**
* Font face selection result set
*/
typedef struct css_select_font_faces_results {
css_allocator_fn alloc;
void *pw;
/**
* Array of pointers to computed font faces.
*/
css_font_face **font_faces;
uint32_t n_font_faces;
} css_select_font_faces_results;
css_error css_select_ctx_create(css_allocator_fn alloc, void *pw,
css_select_ctx **result);
css_error css_select_ctx_destroy(css_select_ctx *ctx);
css_error css_select_ctx_append_sheet(css_select_ctx *ctx,
const css_stylesheet *sheet,
css_origin origin, uint64_t media);
css_error css_select_ctx_insert_sheet(css_select_ctx *ctx,
const css_stylesheet *sheet, uint32_t index,
css_origin origin, uint64_t media);
css_error css_select_ctx_remove_sheet(css_select_ctx *ctx,
const css_stylesheet *sheet);
css_error css_select_ctx_count_sheets(css_select_ctx *ctx, uint32_t *count);
css_error css_select_ctx_get_sheet(css_select_ctx *ctx, uint32_t index,
const css_stylesheet **sheet);
css_error css_select_style(css_select_ctx *ctx, void *node,
uint64_t media, const css_stylesheet *inline_style,
css_select_handler *handler, void *pw,
css_select_results **result);
css_error css_select_results_destroy(css_select_results *results);
css_error css_select_font_faces(css_select_ctx *ctx,
uint64_t media, lwc_string *font_family,
css_select_font_faces_results **result);
css_error css_select_font_faces_results_destroy(
css_select_font_faces_results *results);
#ifdef __cplusplus
}
#endif
#endif
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