int Widget_SetAttributeEx(LCUI_Widget w, const char *name, void *value,
int value_type, void (*value_destructor)(void *))
{
LCUI_WidgetAttribute attr;
if (!self.available) {
self.dt_attributes = DictType_StringCopyKey;
self.dt_attributes.valDestructor = OnClearWidgetAttribute;
self.available = TRUE;
}
if (!w->attributes) {
w->attributes = Dict_Create(&self.dt_attributes, NULL);
}
attr = Dict_FetchValue(w->attributes, name);
if (attr) {
if (attr->value.destructor) {
attr->value.destructor(attr->value.data);
}
} else {
attr = NEW(LCUI_WidgetAttributeRec, 1);
attr->name = strdup2(name);
Dict_Add(w->attributes, attr->name, attr);
}
attr->value.data = value;
attr->value.type = value_type;
attr->value.destructor = value_destructor;
return 0;
}
const char *Widget_GetAttribute(LCUI_Widget w, const char *name)
{
LCUI_WidgetAttribute attr;
if (!w->attributes) {
return NULL;
}
attr = Dict_FetchValue(w->attributes, name);
if (attr) {
return attr->value.string;
}
return NULL;
}
int LCUI_AddCSSParser( LCUI_StyleParser sp )
{
LCUI_StyleParser new_sp;
if( !sp->name || strlen( sp->name ) < 1 ) {
return -1;
}
if( Dict_FetchValue( self.parsers, sp->name ) ) {
return -2;
}
self.count += 1;
new_sp = NEW( LCUI_StyleParserRec, 1 );
new_sp->key = sp->key;
new_sp->parse = sp->parse;
new_sp->name = strdup( sp->name );
Dict_Add( self.parsers, new_sp->name, new_sp );
return 0;
}
/** 载入CSS代码块，用于实现CSS代码的分块载入 */
static int LCUI_LoadCSSBlock( CSSParserContext ctx, const char *str )
{
size_t size = 0;
LCUI_Selector s;
LinkedListNode *node;
ctx->ptr = str;
for( ; *ctx->ptr && size < ctx->buffer_size; ++ctx->ptr, ++size ) {
switch( ctx->target ) {
case TARGET_SELECTOR:
switch( *ctx->ptr ) {
case '/': goto proc_comment;
case '{':
ctx->target = TARGET_KEY;
ctx->css = StyleSheet();
case ',':
ctx->buffer[ctx->pos] = 0;
ctx->pos = 0;
DEBUG_MSG("selector: %s\n", ctx->buffer);
s = Selector( ctx->buffer );
if( !s ) {
// 解析出错 ...
break;
}
LinkedList_Append( &ctx->selectors, s );
break;
default:
ctx->buffer[ctx->pos++] = *ctx->ptr;
break;
}
break;
case TARGET_KEY:
switch( *ctx->ptr ) {
case '/': goto proc_comment;
case ' ':
case '\n':
case '\r':
case '\t':
case ';':
ctx->pos = 0;
continue;
case ':': break;
case '}':
ctx->target = TARGET_NONE;
goto put_css;
default:
ctx->buffer[ctx->pos++] = *ctx->ptr;
continue;
}
goto select_parser;
case TARGET_VALUE:
switch( *ctx->ptr ) {
case '/': goto proc_comment;
case '}':
case ';':
goto parse_value;
case '\n':
case '\r':
case '\t':
case ' ':
if( ctx->pos == 0 ) {
continue;
}
default:
ctx->buffer[ctx->pos++] = *ctx->ptr;
continue;
}
break;
case TARGET_COMMENT:
if( ctx->is_line_comment ) {
if( *ctx->ptr == '\n' ) {
ctx->target = ctx->target_bak;
}
break;
}
if( *ctx->ptr == '/' && *(ctx->ptr - 1) == '*' ) {
ctx->target = ctx->target_bak;
}
break;
case TARGET_NONE:
default:
switch( *ctx->ptr ) {
case '/': goto proc_comment;
case '\n':
case '\t':
case '\r':
case ' ':
case ',':
case '{':
case '\\':
case '"':
case '}': continue;
default: break;
}
ctx->pos = 0;
ctx->buffer[ctx->pos++] = *ctx->ptr;
ctx->target = TARGET_SELECTOR;
break;
}
continue;
proc_comment:
switch( *(ctx->ptr + 1) ) {
case '/': ctx->is_line_comment = TRUE; break;
case '*': ctx->is_line_comment = FALSE; break;
default:
ctx->buffer[ctx->pos++] = *ctx->ptr;
continue;
}
if( ctx->target_bak != TARGET_COMMENT ) {
ctx->target_bak = ctx->target;
ctx->target = TARGET_COMMENT;
}
continue;
put_css:
DEBUG_MSG("put css\n");
/* 将记录的样式表添加至匹配到的选择器中 */
for( LinkedList_Each( node, &ctx->selectors ) ) {
LCUI_PutStyleSheet( node->data, ctx->css, ctx->space );
}
LinkedList_Clear( &ctx->selectors, (FuncPtr)Selector_Delete );
StyleSheet_Delete( ctx->css );
continue;
select_parser:
ctx->target = TARGET_VALUE;
ctx->buffer[ctx->pos] = 0;
ctx->pos = 0;
ctx->parser = Dict_FetchValue( self.parsers, ctx->buffer );
DEBUG_MSG("select style: %s, parser: %p\n",
ctx->buffer, ctx->parser);
continue;
parse_value:
if( *ctx->ptr == ';' ) {
ctx->target = TARGET_KEY;
}
if( !ctx->parser ) {
continue;
}
ctx->buffer[ctx->pos] = 0;
ctx->pos = 0;
ctx->parser->parse( ctx->css, ctx->parser->key, ctx->buffer );
DEBUG_MSG("parse style value: %s, result: %d\n", ctx->buffer);
if( *ctx->ptr == '}' ) {
ctx->target = TARGET_NONE;
goto put_css;
}
}
return size;
}
