From 859a254f2480bf0fc7b8cb1985ced4b225be9c5c Mon Sep 17 00:00:00 2001 From: John Mark Bell Date: Wed, 27 May 2009 00:37:18 +0000 Subject: Split out remaining UI property parsers svn path=/trunk/libcss/; revision=7572 --- src/parse/properties/ui.c | 280 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 280 insertions(+) create mode 100644 src/parse/properties/ui.c (limited to 'src/parse/properties/ui.c') diff --git a/src/parse/properties/ui.c b/src/parse/properties/ui.c new file mode 100644 index 0000000..1a3d1d8 --- /dev/null +++ b/src/parse/properties/ui.c @@ -0,0 +1,280 @@ +/* + * This file is part of LibCSS. + * Licensed under the MIT License, + * http://www.opensource.org/licenses/mit-license.php + * Copyright 2009 John-Mark Bell + */ + +#include + +#include "bytecode/bytecode.h" +#include "bytecode/opcodes.h" +#include "parse/properties/properties.h" +#include "parse/properties/utils.h" + +css_error parse_cursor(css_language *c, + const parserutils_vector *vector, int *ctx, + css_style **result) +{ + css_error error; + const css_token *token; + uint8_t flags = 0; + uint16_t value = 0; + uint32_t opv; + uint32_t required_size = sizeof(opv); + int temp_ctx = *ctx; + uint8_t *ptr; + + /* [ (URI ',')* IDENT(auto, crosshair, default, pointer, move, e-resize, + * ne-resize, nw-resize, n-resize, se-resize, sw-resize, + * s-resize, w-resize, text, wait, help, progress) ] + * | IDENT(inherit) + */ + + /* Pass 1: validate input and calculate bytecode size */ + token = parserutils_vector_iterate(vector, &temp_ctx); + if (token == NULL || (token->type != CSS_TOKEN_IDENT && + token->type != CSS_TOKEN_URI)) + return CSS_INVALID; + + if (token->type == CSS_TOKEN_IDENT && + token->ilower == c->strings[INHERIT]) { + flags = FLAG_INHERIT; + } else { + bool first = true; + + /* URI* */ + while (token != NULL && token->type == CSS_TOKEN_URI) { + lwc_string *uri = token->idata; + + if (first == false) { + required_size += sizeof(opv); + } else { + value = CURSOR_URI; + } + required_size += sizeof(uri); + + consumeWhitespace(vector, &temp_ctx); + + /* Expect ',' */ + token = parserutils_vector_iterate(vector, &temp_ctx); + if (token == NULL || tokenIsChar(token, ',') == false) + return CSS_INVALID; + + consumeWhitespace(vector, &temp_ctx); + + /* Expect either URI or IDENT */ + token = parserutils_vector_iterate(vector, &temp_ctx); + if (token == NULL || (token->type != CSS_TOKEN_IDENT && + token->type != CSS_TOKEN_URI)) + return CSS_INVALID; + + first = false; + } + + /* IDENT */ + if (token != NULL && token->type == CSS_TOKEN_IDENT) { + if (token->ilower == c->strings[AUTO]) { + if (first) { + value = CURSOR_AUTO; + } + } else if (token->ilower == c->strings[CROSSHAIR]) { + if (first) { + value = CURSOR_CROSSHAIR; + } + } else if (token->ilower == c->strings[DEFAULT]) { + if (first) { + value = CURSOR_DEFAULT; + } + } else if (token->ilower == c->strings[POINTER]) { + if (first) { + value = CURSOR_POINTER; + } + } else if (token->ilower == c->strings[MOVE]) { + if (first) { + value = CURSOR_MOVE; + } + } else if (token->ilower == c->strings[E_RESIZE]) { + if (first) { + value = CURSOR_E_RESIZE; + } + } else if (token->ilower == c->strings[NE_RESIZE]) { + if (first) { + value = CURSOR_NE_RESIZE; + } + } else if (token->ilower == c->strings[NW_RESIZE]) { + if (first) { + value = CURSOR_NW_RESIZE; + } + } else if (token->ilower == c->strings[N_RESIZE]) { + if (first) { + value = CURSOR_N_RESIZE; + } + } else if (token->ilower == c->strings[SE_RESIZE]) { + if (first) { + value = CURSOR_SE_RESIZE; + } + } else if (token->ilower == c->strings[SW_RESIZE]) { + if (first) { + value = CURSOR_SW_RESIZE; + } + } else if (token->ilower == c->strings[S_RESIZE]) { + if (first) { + value = CURSOR_S_RESIZE; + } + } else if (token->ilower == c->strings[W_RESIZE]) { + if (first) { + value = CURSOR_W_RESIZE; + } + } else if (token->ilower == c->strings[TEXT]) { + if (first) { + value = CURSOR_TEXT; + } + } else if (token->ilower == c->strings[WAIT]) { + if (first) { + value = CURSOR_WAIT; + } + } else if (token->ilower == c->strings[HELP]) { + if (first) { + value = CURSOR_HELP; + } + } else if (token->ilower == c->strings[PROGRESS]) { + if (first) { + value = CURSOR_PROGRESS; + } + } else { + return CSS_INVALID; + } + + if (first == false) { + required_size += sizeof(opv); + } + } + + consumeWhitespace(vector, &temp_ctx); + + token = parserutils_vector_peek(vector, temp_ctx); + if (token != NULL && tokenIsChar(token, '!') == false) + return CSS_INVALID; + } + + error = parse_important(c, vector, &temp_ctx, &flags); + if (error != CSS_OK) + return error; + + opv = buildOPV(CSS_PROP_CURSOR, flags, value); + + /* Allocate result */ + error = css_stylesheet_style_create(c->sheet, required_size, result); + if (error != CSS_OK) + return error; + + /* Copy OPV to bytecode */ + ptr = (*result)->bytecode; + memcpy(ptr, &opv, sizeof(opv)); + ptr += sizeof(opv); + + /* Pass 2: construct bytecode */ + token = parserutils_vector_iterate(vector, ctx); + if (token == NULL || (token->type != CSS_TOKEN_IDENT && + token->type != CSS_TOKEN_URI)) + return CSS_INVALID; + + if (token->type == CSS_TOKEN_IDENT && + token->ilower == c->strings[INHERIT]) { + /* Nothing to do */ + } else { + bool first = true; + + /* URI* */ + while (token != NULL && token->type == CSS_TOKEN_URI) { + lwc_string *uri = token->idata; + + if (first == false) { + opv = CURSOR_URI; + memcpy(ptr, &opv, sizeof(opv)); + ptr += sizeof(opv); + } + + lwc_context_string_ref(c->sheet->dictionary, uri); + memcpy(ptr, &uri, sizeof(uri)); + ptr += sizeof(uri); + + consumeWhitespace(vector, ctx); + + /* Expect ',' */ + token = parserutils_vector_iterate(vector, ctx); + if (token == NULL || tokenIsChar(token, ',') == false) + return CSS_INVALID; + + consumeWhitespace(vector, ctx); + + /* Expect either URI or IDENT */ + token = parserutils_vector_iterate(vector, ctx); + if (token == NULL || (token->type != CSS_TOKEN_IDENT && + token->type != CSS_TOKEN_URI)) + return CSS_INVALID; + + first = false; + } + + /* IDENT */ + if (token != NULL && token->type == CSS_TOKEN_IDENT) { + if (token->ilower == c->strings[AUTO]) { + opv = CURSOR_AUTO; + } else if (token->ilower == c->strings[CROSSHAIR]) { + opv = CURSOR_CROSSHAIR; + } else if (token->ilower == c->strings[DEFAULT]) { + opv = CURSOR_DEFAULT; + } else if (token->ilower == c->strings[POINTER]) { + opv = CURSOR_POINTER; + } else if (token->ilower == c->strings[MOVE]) { + opv = CURSOR_MOVE; + } else if (token->ilower == c->strings[E_RESIZE]) { + opv = CURSOR_E_RESIZE; + } else if (token->ilower == c->strings[NE_RESIZE]) { + opv = CURSOR_NE_RESIZE; + } else if (token->ilower == c->strings[NW_RESIZE]) { + opv = CURSOR_NW_RESIZE; + } else if (token->ilower == c->strings[N_RESIZE]) { + opv = CURSOR_N_RESIZE; + } else if (token->ilower == c->strings[SE_RESIZE]) { + opv = CURSOR_SE_RESIZE; + } else if (token->ilower == c->strings[SW_RESIZE]) { + opv = CURSOR_SW_RESIZE; + } else if (token->ilower == c->strings[S_RESIZE]) { + opv = CURSOR_S_RESIZE; + } else if (token->ilower == c->strings[W_RESIZE]) { + opv = CURSOR_W_RESIZE; + } else if (token->ilower == c->strings[TEXT]) { + opv = CURSOR_TEXT; + } else if (token->ilower == c->strings[WAIT]) { + opv = CURSOR_WAIT; + } else if (token->ilower == c->strings[HELP]) { + opv = CURSOR_HELP; + } else if (token->ilower == c->strings[PROGRESS]) { + opv = CURSOR_PROGRESS; + } else { + return CSS_INVALID; + } + + if (first == false) { + memcpy(ptr, &opv, sizeof(opv)); + ptr += sizeof(opv); + } + } + + consumeWhitespace(vector, ctx); + + token = parserutils_vector_peek(vector, *ctx); + if (token != NULL && tokenIsChar(token, '!') == false) + return CSS_INVALID; + } + + error = parse_important(c, vector, ctx, &flags); + if (error != CSS_OK) + return error; + + return CSS_OK; +} + -- cgit v1.2.3