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FS#11470 - new skin code, finally svn uses the new parser from the theme editor. This means that a skin that passes the editor WILL pass svn and checkwps (unless the target runs out of skin buffer or something.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27613 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jonathan Gordon 2010-07-29 12:37:48 +00:00
parent e436483b66
commit 2d31d77a8b
44 changed files with 2105 additions and 3326 deletions

View file

@ -21,6 +21,7 @@
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>
#include <string.h>
#include <ctype.h>
#include <stdbool.h>
@ -37,6 +38,11 @@ int skin_line = 0;
char* skin_start = 0;
int viewport_line = 0;
#ifdef ROCKBOX
static skin_callback callback = NULL;
static void* callback_data;
#endif
/* Auxiliary parsing functions (not visible at global scope) */
static struct skin_element* skin_parse_viewport(char** document);
static struct skin_element* skin_parse_line(char** document);
@ -55,10 +61,23 @@ static int skin_parse_comment(struct skin_element* element, char** document);
static struct skin_element* skin_parse_code_as_arg(char** document);
static void skip_whitespace(char** document)
{
while(**document == ' ' || **document == '\t')
(*document)++;
}
#ifdef ROCKBOX
struct skin_element* skin_parse(const char* document,
skin_callback cb, void* cb_data)
{
callback = cb;
callback_data = cb_data;
#else
struct skin_element* skin_parse(const char* document)
{
#endif
struct skin_element* root = NULL;
struct skin_element* last = NULL;
@ -94,7 +113,6 @@ struct skin_element* skin_parse(const char* document)
last = last->next;
}
return root;
}
@ -107,6 +125,8 @@ static struct skin_element* skin_parse_viewport(char** document)
struct skin_element* retval = NULL;
retval = skin_alloc_element();
if (!retval)
return NULL;
retval->type = VIEWPORT;
retval->children_count = 1;
retval->line = skin_line;
@ -129,11 +149,18 @@ static struct skin_element* skin_parse_viewport(char** document)
skin_line++;
}
}
#ifdef ROCKBOX
else if (callback)
{
if (callback(retval, callback_data) == CALLBACK_ERROR)
return NULL;
}
#endif
retval->children_count = 1;
retval->children = skin_alloc_children(1);
if (!retval->children)
return NULL;
do
{
@ -199,7 +226,6 @@ static struct skin_element* skin_parse_viewport(char** document)
return NULL;
}
/* Making sure last is at the end */
while(last->next)
last = last->next;
@ -245,6 +271,8 @@ static struct skin_element* skin_parse_line_optional(char** document,
/* A wrapper for the line */
retval = skin_alloc_element();
if (!retval)
return NULL;
retval->type = LINE;
retval->line = skin_line;
if(*cursor != '\0' && *cursor != '\n' && *cursor != MULTILINESYM
@ -261,7 +289,24 @@ static struct skin_element* skin_parse_line_optional(char** document,
}
if(retval->children_count > 0)
{
retval->children = skin_alloc_children(1);
if (!retval->children)
return NULL;
}
#ifdef ROCKBOX
if (callback)
{
switch (callback(retval, callback_data))
{
case CALLBACK_ERROR:
return NULL;
default:
break;
}
}
#endif
while(*cursor != '\n' && *cursor != '\0' && *cursor != MULTILINESYM
&& !((*cursor == ARGLISTSEPERATESYM
@ -275,11 +320,15 @@ static struct skin_element* skin_parse_line_optional(char** document,
if(root)
{
current->next = skin_alloc_element();
if (!current->next)
return NULL;
current = current->next;
}
else
{
current = skin_alloc_element();
if (!current)
return NULL;
root = current;
}
@ -306,9 +355,10 @@ static struct skin_element* skin_parse_line_optional(char** document,
}
}
/* Moving up the calling function's pointer */
*document = cursor;
if(root)
retval->children[0] = root;
return retval;
@ -328,6 +378,8 @@ static struct skin_element* skin_parse_sublines_optional(char** document,
int i;
retval = skin_alloc_element();
if (!retval)
return NULL;
retval->type = LINE_ALTERNATOR;
retval->next = NULL;
retval->line = skin_line;
@ -374,6 +426,8 @@ static struct skin_element* skin_parse_sublines_optional(char** document,
/* ...and then we parse them */
retval->children_count = sublines;
retval->children = skin_alloc_children(sublines);
if (!retval->children)
return NULL;
cursor = *document;
for(i = 0; i < sublines; i++)
@ -392,6 +446,13 @@ static struct skin_element* skin_parse_sublines_optional(char** document,
}
}
#ifdef ROCKBOX
if (callback)
{
if (callback(retval, callback_data) == CALLBACK_ERROR)
return NULL;
}
#endif
*document = cursor;
return retval;
@ -458,6 +519,14 @@ static int skin_parse_tag(struct skin_element* element, char** document)
|| (tag_args[0] == '|' && *cursor != ARGLISTOPENSYM)
|| (star && *cursor != ARGLISTOPENSYM))
{
#ifdef ROCKBOX
if (callback)
{
if (callback(element, callback_data) == CALLBACK_ERROR)
return 0;
}
#endif
*document = cursor;
return 1;
}
@ -507,6 +576,8 @@ static int skin_parse_tag(struct skin_element* element, char** document)
cursor = bookmark; /* Restoring the cursor */
element->params_count = num_args;
element->params = skin_alloc_params(num_args);
if (!element->params)
return 0;
/* Now we have to actually parse each argument */
for(i = 0; i < num_args; i++)
@ -587,7 +658,6 @@ static int skin_parse_tag(struct skin_element* element, char** document)
}
if (have_tenth == false)
val *= 10;
element->params[i].type = DECIMAL;
element->params[i].data.number = val;
}
@ -644,7 +714,13 @@ static int skin_parse_tag(struct skin_element* element, char** document)
skin_error(INSUFFICIENT_ARGS, cursor);
return 0;
}
#ifdef ROCKBOX
if (callback)
{
if (callback(element, callback_data) == CALLBACK_ERROR)
return 0;
}
#endif
*document = cursor;
return 1;
@ -691,6 +767,8 @@ static int skin_parse_text(struct skin_element* element, char** document,
element->line = skin_line;
element->next = NULL;
element->data = text = skin_alloc_string(length);
if (!element->data)
return 0;
for(dest = 0; dest < length; dest++)
{
@ -702,6 +780,14 @@ static int skin_parse_text(struct skin_element* element, char** document,
cursor++;
}
text[length] = '\0';
#ifdef ROCKBOX
if (callback)
{
if (callback(element, callback_data) == CALLBACK_ERROR)
return 0;
}
#endif
*document = cursor;
@ -715,14 +801,40 @@ static int skin_parse_conditional(struct skin_element* element, char** document)
char* bookmark;
int children = 1;
int i;
#ifdef ROCKBOX
bool feature_available = true;
char *false_branch = NULL;
#endif
element->type = CONDITIONAL;
/* Some conditional tags allow for target feature checking,
* so to handle that call the callback as usual with type == TAG
* then call it a second time with type == CONDITIONAL and check the return
* value */
element->type = TAG;
element->line = skin_line;
/* Parsing the tag first */
if(!skin_parse_tag(element, &cursor))
return 0;
element->type = CONDITIONAL;
#ifdef ROCKBOX
if (callback)
{
switch (callback(element, callback_data))
{
case FEATURE_NOT_AVAILABLE:
feature_available = false;
break;
case CALLBACK_ERROR:
return 0;
default:
break;
}
}
#endif
/* Counting the children */
if(*(cursor++) != ENUMLISTOPENSYM)
{
@ -751,16 +863,35 @@ static int skin_parse_conditional(struct skin_element* element, char** document)
{
children++;
cursor++;
#ifdef ROCKBOX
if (false_branch == NULL && !feature_available)
{
false_branch = cursor;
children--;
}
#endif
}
else
{
cursor++;
}
}
#ifdef ROCKBOX
if (*cursor == ENUMLISTCLOSESYM &&
false_branch == NULL && !feature_available)
{
false_branch = cursor+1;
children--;
}
/* if we are skipping the true branch fix that up */
cursor = false_branch ? false_branch : bookmark;
#else
cursor = bookmark;
#endif
/* Parsing the children */
element->children = skin_alloc_children(children);
if (!element->children)
return 0;
element->children_count = children;
for(i = 0; i < children; i++)
@ -809,6 +940,8 @@ static int skin_parse_comment(struct skin_element* element, char** document)
element->data = NULL;
#else
element->data = text = skin_alloc_string(length);
if (!element->data)
return 0;
/* We copy from one char past cursor to leave out the # */
memcpy((void*)text, (void*)(cursor + 1),
sizeof(char) * (length-1));
@ -877,6 +1010,8 @@ struct skin_element* skin_alloc_element()
{
struct skin_element* retval = (struct skin_element*)
skin_buffer_alloc(sizeof(struct skin_element));
if (!retval)
return NULL;
retval->type = UNKNOWN;
retval->next = NULL;
retval->tag = NULL;
@ -886,9 +1021,21 @@ struct skin_element* skin_alloc_element()
return retval;
}
/* On a ROCKBOX build we try to save space as much as possible
* so if we can, use a shared param pool which should be more then large
* enough for any tag. params should be used straight away by the callback
* so this is safe.
*/
struct skin_tag_parameter* skin_alloc_params(int count)
{
#ifdef ROCKBOX
static struct skin_tag_parameter params[MAX_TAG_PARAMS];
if (count <= MAX_TAG_PARAMS)
{
memset(params, 0, sizeof(params));
return params;
}
#endif
size_t size = sizeof(struct skin_tag_parameter) * count;
return (struct skin_tag_parameter*)skin_buffer_alloc(size);