/* * 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> */ #include "bytecode/bytecode.h"#include "bytecode/opcodes.h"#include "select/propset.h"#include "select/propget.h"#include "utils/utils.h" #include "select/properties/properties.h"#include "select/properties/helpers.h" css_error css__cascade_cursor(uint32_t opv, css_style *style, 		css_select_state *state){		uint16_t value = CSS_CURSOR_INHERIT;	lwc_string **uris = NULL;	uint32_t n_uris = 0; 	if (isInherit(opv) == false) {		uint32_t v = getValue(opv); 		while (v == CURSOR_URI) {			lwc_string *uri;			lwc_string **temp; 			css__stylesheet_string_get(style->sheet, *((css_code_t *) style->bytecode), &uri);			advance_bytecode(style, sizeof(css_code_t)); 			temp = state->computed->alloc(uris, 					(n_uris + 1) * sizeof(lwc_string *), 					state->computed->pw);			if (temp == NULL) {				if (uris != NULL) {					state->computed->alloc(uris, 0,							state->computed->pw);				}				return CSS_NOMEM;			} 			uris = temp; 			uris[n_uris] = uri; 			n_uris++; 			v = *((uint32_t *) style->bytecode);			advance_bytecode(style, sizeof(v));		} 		switch (v) {		case CURSOR_AUTO:			value = CSS_CURSOR_AUTO;			break;		case CURSOR_CROSSHAIR:			value = CSS_CURSOR_CROSSHAIR;			break;		case CURSOR_DEFAULT:			value = CSS_CURSOR_DEFAULT;			break;		case CURSOR_POINTER:			value = CSS_CURSOR_POINTER;			break;		case CURSOR_MOVE:			value = CSS_CURSOR_MOVE;			break;		case CURSOR_E_RESIZE:			value = CSS_CURSOR_E_RESIZE;			break;		case CURSOR_NE_RESIZE:			value = CSS_CURSOR_NE_RESIZE;			break;		case CURSOR_NW_RESIZE:			value = CSS_CURSOR_NW_RESIZE;			break;		case CURSOR_N_RESIZE:			value = CSS_CURSOR_N_RESIZE;			break;		case CURSOR_SE_RESIZE:			value = CSS_CURSOR_SE_RESIZE;			break;		case CURSOR_SW_RESIZE:			value = CSS_CURSOR_SW_RESIZE;			break;		case CURSOR_S_RESIZE:			value = CSS_CURSOR_S_RESIZE;			break;		case CURSOR_W_RESIZE:			value = CSS_CURSOR_W_RESIZE;			break;		case CURSOR_TEXT:			value = CSS_CURSOR_TEXT;			break;		case CURSOR_WAIT:			value = CSS_CURSOR_WAIT;			break;		case CURSOR_HELP:			value = CSS_CURSOR_HELP;			break;		case CURSOR_PROGRESS:			value = CSS_CURSOR_PROGRESS;			break;		}	} 	/* Terminate array with blank entry, if needed */	if (n_uris > 0) {		lwc_string **temp; 		temp = state->computed->alloc(uris, 				(n_uris + 1) * sizeof(lwc_string *), 				state->computed->pw);		if (temp == NULL) {			state->computed->alloc(uris, 0, state->computed->pw);			return CSS_NOMEM;		} 		uris = temp; 		uris[n_uris] = NULL;	} 	if (css__outranks_existing(getOpcode(opv), isImportant(opv), state,			isInherit(opv))) {		css_error error; 		error = set_cursor(state->computed, value, uris);		if (error != CSS_OK && n_uris > 0)			state->computed->alloc(uris, 0, state->computed->pw); 		return error;	} else {		if (n_uris > 0)			state->computed->alloc(uris, 0, state->computed->pw);	} 	return CSS_OK;} css_error css__set_cursor_from_hint(const css_hint *hint,		css_computed_style *style){	lwc_string **item;	css_error error; 	error = set_cursor(style, hint->status, hint->data.strings); 	for (item = hint->data.strings; 			item != NULL && (*item) != NULL; item++) {		lwc_string_unref(*item);	} 	if (error != CSS_OK && hint->data.strings != NULL)		style->alloc(hint->data.strings, 0, style->pw); 	return error;} css_error css__initial_cursor(css_select_state *state){	return set_cursor(state->computed, CSS_CURSOR_AUTO, NULL);} css_error css__compose_cursor(const css_computed_style *parent,		const css_computed_style *child,		css_computed_style *result){	css_error error;	lwc_string **urls = NULL;	uint8_t type = get_cursor(child, &urls); 	if ((child->uncommon == NULL && parent->uncommon != NULL) ||			type == CSS_CURSOR_INHERIT ||			(child->uncommon != NULL && result != child)) {		size_t n_urls = 0;		lwc_string **copy = NULL; 		if ((child->uncommon == NULL && parent->uncommon != NULL) ||				type == CSS_CURSOR_INHERIT) {			type = get_cursor(parent, &urls);		} 		if (urls != NULL) {			lwc_string **i; 			for (i = urls; (*i) != NULL; i++)				n_urls++; 			copy = result->alloc(NULL, (n_urls + 1) * 					sizeof(lwc_string *),					result->pw);			if (copy == NULL)				return CSS_NOMEM; 			memcpy(copy, urls, (n_urls + 1) * 					sizeof(lwc_string *));		} 		error = set_cursor(result, type, copy);		if (error != CSS_OK && copy != NULL)			result->alloc(copy, 0, result->pw); 		return error;	} 	return CSS_OK;}