static bool save_complete_handle_attrs(save_complete_ctx *ctx,
dom_string *node_name, dom_namednodemap *attrs)
{
uint32_t length, i;
dom_exception error;
error = dom_namednodemap_get_length(attrs, &length);
if (error != DOM_NO_ERR)
return false;
for (i = 0; i < length; i++) {
dom_attr *attr;
error = dom_namednodemap_item(attrs, i, (void *) &attr);
if (error != DOM_NO_ERR)
return false;
if (attr == NULL)
continue;
if (save_complete_handle_attr(ctx, node_name, attr) == false) {
dom_node_unref(attr);
return false;
}
dom_node_unref(attr);
}
return true;
}
/**
* Load the file as it is a XML file
*
* \param file The file path
* \param willBeModified Whether this file will be modified, not used
*/
dom_document *load_xml(const char *file, bool willBeModified)
{
dom_xml_parser *parser = NULL;
int handle;
int readed;
dom_xml_error error;
dom_document *ret;
uint8_t buffer[1024];
UNUSED(willBeModified);
parser = dom_xml_parser_create(NULL, NULL, mymsg, NULL, &ret);
if (parser == NULL) {
fprintf(stderr, "Can't create XMLParser\n");
return NULL;
}
handle = open(file, O_RDONLY);
if (handle == -1) {
dom_node_unref(ret);
dom_xml_parser_destroy(parser);
fprintf(stderr, "Can't open test input file: %s\n", file);
return NULL;
}
readed = read(handle, buffer, 1024);
error = dom_xml_parser_parse_chunk(parser, buffer, readed);
if (error != DOM_XML_OK) {
dom_node_unref(ret);
dom_xml_parser_destroy(parser);
fprintf(stderr, "Parsing errors occur\n");
return NULL;
}
while(readed == 1024) {
readed = read(handle, buffer, 1024);
error = dom_xml_parser_parse_chunk(parser, buffer, readed);
if (error != DOM_XML_OK) {
dom_node_unref(ret);
dom_xml_parser_destroy(parser);
fprintf(stderr, "Parsing errors occur\n");
return NULL;
}
}
error = dom_xml_parser_completed(parser);
if (error != DOM_XML_OK) {
dom_node_unref(ret);
dom_xml_parser_destroy(parser);
fprintf(stderr, "Parsing error when construct DOM\n");
return NULL;
}
dom_xml_parser_destroy(parser);
return ret;
}
/**
* Callback to find a named sibling node.
*
* \param pw HTML document
* \param node DOM node
* \param qname Node name to search for
* \param sibling Pointer to location to receive sibling
* \return CSS_OK.
*
* \post \a sibling will contain the result, or NULL if there is no match
*/
css_error named_sibling_node(void *pw, void *node,
const css_qname *qname, void **sibling)
{
dom_node *n = node;
dom_node *prev;
dom_exception err;
*sibling = NULL;
/* Find sibling element */
err = dom_node_get_previous_sibling(n, &n);
if (err != DOM_NO_ERR)
return CSS_OK;
while (n != NULL) {
dom_node_type type;
err = dom_node_get_node_type(n, &type);
if (err != DOM_NO_ERR) {
dom_node_unref(n);
return CSS_OK;
}
if (type == DOM_ELEMENT_NODE)
break;
err = dom_node_get_previous_sibling(n, &prev);
if (err != DOM_NO_ERR) {
dom_node_unref(n);
return CSS_OK;
}
dom_node_unref(n);
n = prev;
}
if (n != NULL) {
dom_string *name;
err = dom_node_get_node_name(n, &name);
if (err != DOM_NO_ERR) {
dom_node_unref(n);
return CSS_OK;
}
dom_node_unref(n);
if (dom_string_caseless_lwc_isequal(name, qname->name)) {
*sibling = n;
}
dom_string_unref(name);
}
return CSS_OK;
}
/**
* Finalise a dom_html_collection object
*
* \param col The dom_html_collection object
*/
void _dom_html_collection_finalise(struct dom_html_collection *col)
{
dom_node_unref(col->doc);
col->doc = NULL;
dom_node_unref(col->root);
col->root = NULL;
col->ic = NULL;
}
/**
* Callback to count a node's siblings.
*
* \param pw HTML document
* \param n DOM node
* \param same_name Only count siblings with the same name, or all
* \param after Count anteceding instead of preceding siblings
* \param count Pointer to location to receive result
* \return CSS_OK.
*
* \post \a count will contain the number of siblings
*/
css_error node_count_siblings(void *pw, void *n, bool same_name,
bool after, int32_t *count)
{
int32_t cnt = 0;
dom_exception exc;
dom_string *node_name = NULL;
if (same_name) {
dom_node *node = n;
exc = dom_node_get_node_name(node, &node_name);
if ((exc != DOM_NO_ERR) || (node_name == NULL)) {
return CSS_NOMEM;
}
}
if (after) {
dom_node *node = dom_node_ref(n);
dom_node *next;
do {
exc = dom_node_get_next_sibling(node, &next);
if ((exc != DOM_NO_ERR))
break;
dom_node_unref(node);
node = next;
cnt += node_count_siblings_check(node, same_name, node_name);
} while (node != NULL);
} else {
dom_node *node = dom_node_ref(n);
dom_node *next;
do {
exc = dom_node_get_previous_sibling(node, &next);
if ((exc != DOM_NO_ERR))
break;
dom_node_unref(node);
node = next;
cnt += node_count_siblings_check(node, same_name, node_name);
} while (node != NULL);
}
if (node_name != NULL) {
dom_string_unref(node_name);
}
*count = cnt;
return CSS_OK;
}
/**
* Callback to determine if a node is the root node of the document.
*
* \param pw HTML document
* \param node DOM node
* \param match Pointer to location to receive result
* \return CSS_OK.
*
* \post \a match will contain true if the node matches and false otherwise.
*/
css_error node_is_root(void *pw, void *node, bool *match)
{
dom_node *n = node;
dom_node *parent;
dom_node_type type;
dom_exception err;
err = dom_node_get_parent_node(n, &parent);
if (err != DOM_NO_ERR) {
return CSS_NOMEM;
}
if (parent != NULL) {
err = dom_node_get_node_type(parent, &type);
dom_node_unref(parent);
if (err != DOM_NO_ERR)
return CSS_NOMEM;
if (type != DOM_DOCUMENT_NODE) {
*match = false;
return CSS_OK;
}
}
*match = true;
return CSS_OK;
}
dom_exception dom_element_get_elements_by_tag_name(dom_element *element, dom_string *string, dom_nodelist **outNodeList) {
dom_nodelist *result = NULL;
dom_element **nodeList = NULL;
int nodeCount = 0;
for (ezxml_t candidate = ezxml_child(element->node, string->s); candidate; candidate = candidate->next) {
if (NULL == nodeList) {
nodeList = (dom_element **)malloc(nodeCount * sizeof(dom_element *));
} else {
dom_element **t = realloc(nodeList, (1+nodeCount) * sizeof(dom_element *));
if (t) {
nodeList = t;
} else {
for (int i = 0; i < nodeCount; ++i) {
dom_node_unref(nodeList[i]);
}
free(nodeList);
*outNodeList = result;
return DOM_MEM_ERR;
}
}
dom_element *elem = (dom_element *)calloc(sizeof(dom_element), 1);
elem->node = candidate;
elem->ref = 1;
nodeList[nodeCount++] = elem;
}
if (nodeCount) {
result = calloc(sizeof(dom_nodelist), 1);
result->nodes = nodeList;
result->count = nodeCount;
result->ref = 1;
}
*outNodeList = result;
return DOM_NO_ERR;
}
/**
* Callback to retrieve the preceding sibling of a node.
*
* \param pw HTML document
* \param node DOM node
* \param sibling Pointer to location to receive sibling
* \return CSS_OK.
*
* \post \a sibling will contain the result, or NULL if there is no match
*/
css_error sibling_node(void *pw, void *node, void **sibling)
{
dom_node *n = node;
dom_node *prev;
dom_exception err;
*sibling = NULL;
/* Find sibling element */
err = dom_node_get_previous_sibling(n, &n);
if (err != DOM_NO_ERR)
return CSS_OK;
while (n != NULL) {
dom_node_type type;
err = dom_node_get_node_type(n, &type);
if (err != DOM_NO_ERR) {
dom_node_unref(n);
return CSS_OK;
}
if (type == DOM_ELEMENT_NODE)
break;
err = dom_node_get_previous_sibling(n, &prev);
if (err != DOM_NO_ERR) {
dom_node_unref(n);
return CSS_OK;
}
dom_node_unref(n);
n = prev;
}
if (n != NULL) {
/** \todo Sort out reference counting */
dom_node_unref(n);
*sibling = n;
}
return CSS_OK;
}
static hubbub_error reparent_children(void *parser, void *node,
void *new_parent)
{
dom_hubbub_parser *dom_parser = (dom_hubbub_parser *) parser;
dom_exception err;
struct dom_node *child, *result;
while(true) {
err = dom_node_get_first_child((struct dom_node *) node,
&child);
if (err != DOM_NO_ERR) {
dom_parser->msg(DOM_MSG_CRITICAL, dom_parser->mctx,
"Error in dom_note_get_first_child");
return HUBBUB_UNKNOWN;
}
if (child == NULL)
break;
err = dom_node_remove_child(node, (struct dom_node *) child,
&result);
if (err != DOM_NO_ERR) {
dom_parser->msg(DOM_MSG_CRITICAL, dom_parser->mctx,
"Error in dom_node_remove_child");
goto fail;
}
dom_node_unref(result);
err = dom_node_append_child((struct dom_node *) new_parent,
(struct dom_node *) child, &result);
if (err != DOM_NO_ERR) {
dom_parser->msg(DOM_MSG_CRITICAL, dom_parser->mctx,
"Error in dom_node_append_child");
goto fail;
}
dom_node_unref(result);
dom_node_unref(child);
}
return HUBBUB_OK;
fail:
dom_node_unref(child);
return HUBBUB_UNKNOWN;
}
static hubbub_error unref_node(void *parser, void *node)
{
struct dom_node *dnode = (struct dom_node *) node;
UNUSED(parser);
dom_node_unref(dnode);
return HUBBUB_OK;
}
/**
* Extract an imagemap from html source
*
* \param node XML node containing map
* \param c Content containing document
* \param entry List of map entries
* \param tname The sub-tags to consider on this pass
* \return false on memory exhaustion, true otherwise
*/
static bool
imagemap_extract_map_entries(dom_node *node, html_content *c,
struct mapentry **entry, dom_string *tname)
{
dom_nodelist *nlist;
dom_exception exc;
unsigned long ent;
uint32_t tag_count;
exc = dom_element_get_elements_by_tag_name(node, tname, &nlist);
if (exc != DOM_NO_ERR) {
return false;
}
exc = dom_nodelist_get_length(nlist, &tag_count);
if (exc != DOM_NO_ERR) {
dom_nodelist_unref(nlist);
return false;
}
for (ent = 0; ent < tag_count; ++ent) {
dom_node *subnode;
exc = dom_nodelist_item(nlist, ent, &subnode);
if (exc != DOM_NO_ERR) {
dom_nodelist_unref(nlist);
return false;
}
if (imagemap_addtolist(c, subnode, c->base_url,
entry, tname) == false) {
dom_node_unref(subnode);
dom_nodelist_unref(nlist);
return false;
}
dom_node_unref(subnode);
}
dom_nodelist_unref(nlist);
return true;
}
/**
* Destroy a Hubbub parser instance
*
* \param parser The Hubbub parser object
*/
void dom_hubbub_parser_destroy(dom_hubbub_parser *parser)
{
hubbub_parser_destroy(parser->parser);
parser->parser = NULL;
if (parser->doc != NULL) {
dom_node_unref((struct dom_node *) parser->doc);
parser->doc = NULL;
}
free(parser);
}
static hubbub_error get_parent(void *parser, void *node, bool element_only,
void **result)
{
dom_hubbub_parser *dom_parser = (dom_hubbub_parser *) parser;
dom_exception err;
struct dom_node *parent;
dom_node_type type = DOM_NODE_TYPE_COUNT;
err = dom_node_get_parent_node((struct dom_node *) node,
&parent);
if (err != DOM_NO_ERR) {
dom_parser->msg(DOM_MSG_CRITICAL, dom_parser->mctx,
"Error in dom_node_get_parent");
return HUBBUB_UNKNOWN;
}
if (element_only == false) {
*result = parent;
return HUBBUB_OK;
}
err = dom_node_get_node_type(parent, &type);
if (err != DOM_NO_ERR) {
dom_parser->msg(DOM_MSG_CRITICAL, dom_parser->mctx,
"Error in dom_node_get_type");
goto fail;
}
if (type == DOM_ELEMENT_NODE) {
*result = parent;
return HUBBUB_OK;
} else {
*result = NULL;
dom_node_unref(parent);
return HUBBUB_OK;
}
return HUBBUB_OK;
fail:
dom_node_unref(parent);
return HUBBUB_UNKNOWN;
}
/**
* Callback to determine if a node is empty.
*
* \param pw HTML document
* \param node DOM node
* \param match Pointer to location to receive result
* \return CSS_OK.
*
* \post \a match will contain true if the node is empty and false otherwise.
*/
css_error node_is_empty(void *pw, void *node, bool *match)
{
dom_node *n = node, *next;
dom_exception err;
*match = true;
err = dom_node_get_first_child(n, &n);
if (err != DOM_NO_ERR) {
return CSS_BADPARM;
}
while (n != NULL) {
dom_node_type ntype;
err = dom_node_get_node_type(n, &ntype);
if (err != DOM_NO_ERR) {
dom_node_unref(n);
return CSS_BADPARM;
}
if (ntype == DOM_ELEMENT_NODE ||
ntype == DOM_TEXT_NODE) {
*match = false;
dom_node_unref(n);
break;
}
err = dom_node_get_next_sibling(n, &next);
if (err != DOM_NO_ERR) {
dom_node_unref(n);
return CSS_BADPARM;
}
dom_node_unref(n);
n = next;
}
return CSS_OK;
}
void dom_nodelist_unref(dom_nodelist *nodeList) {
assert(nodeList);
nodeList->ref--;
if (0 == nodeList->ref) {
int count = nodeList->count;
for (int i = 0; i < count; ++i) {
dom_node_unref(nodeList->nodes[i]);
}
if (0 < count) {
free(nodeList->nodes);
}
free(nodeList);
}
}
void list_destroy(struct list* list)
{
struct list_elt* elt = list->head;
while (elt != NULL) {
if (list->type == DOM_STRING)
dom_string_unref((dom_string *) elt->data);
if (list->type == NODE)
dom_node_unref(elt->data);
struct list_elt* nextElt = elt->next;
free(elt);
elt = nextElt;
}
free(list);
}
static struct form_control *
parse_select_element(struct form *forms, dom_html_select_element *select)
{
struct form_control *control = NULL;
dom_html_form_element *form = NULL;
dom_string *ds_name = NULL;
char *name = NULL;
if (dom_html_select_element_get_form(select, &form) != DOM_NO_ERR)
goto out;
if (dom_html_select_element_get_name(select, &ds_name) != DOM_NO_ERR)
goto out;
if (ds_name != NULL)
name = strndup(dom_string_data(ds_name),
dom_string_byte_length(ds_name));
control = form_new_control(select, GADGET_SELECT);
if (control == NULL)
goto out;
if (name != NULL) {
/* Hand the name string over */
control->name = name;
name = NULL;
}
dom_html_select_element_get_multiple(select,
&(control->data.select.multiple));
if (form != NULL && control != NULL)
form_add_control(find_form(forms, form), control);
out:
if (form != NULL)
dom_node_unref(form);
if (ds_name != NULL)
dom_string_unref(ds_name);
if (name != NULL)
free(name);
return control;
}
/* documented in html_internal.h */
struct form *html_forms_get_forms(const char *docenc, dom_html_document *doc)
{
dom_html_collection *forms;
struct form *ret = NULL, *newf;
dom_node *node;
unsigned long n;
uint32_t nforms;
if (doc == NULL)
return NULL;
/* Attempt to build a set of all the forms */
if (dom_html_document_get_forms(doc, &forms) != DOM_NO_ERR)
return NULL;
/* Count the number of forms so we can iterate */
if (dom_html_collection_get_length(forms, &nforms) != DOM_NO_ERR)
goto out;
/* Iterate the forms collection, making form structs for returning */
for (n = 0; n < nforms; ++n) {
if (dom_html_collection_item(forms, n, &node) != DOM_NO_ERR) {
goto out;
}
newf = parse_form_element(docenc, node);
dom_node_unref(node);
if (newf == NULL) {
goto err;
}
newf->prev = ret;
ret = newf;
}
/* All went well */
goto out;
err:
while (ret != NULL) {
struct form *prev = ret->prev;
/* Destroy ret */
free(ret);
ret = prev;
}
out:
/* Finished with the collection, return it */
dom_html_collection_unref(forms);
return ret;
}
svgtiny_code svgtiny_parse(struct svgtiny_diagram *diagram,
const char *buffer, size_t size, const char *url,
int viewport_width, int viewport_height)
{
svgtiny_code code;
dom_document *document;
code = svgtiny_parse_dom(buffer, size, url, &document);
if (code != svgtiny_OK) {
return code;
}
code = svgtiny_parse_svg_from_dom(diagram, document, viewport_width, viewport_height);
dom_node_unref(document);
return code;
}
static struct form_control *
parse_textarea_element(struct form *forms, dom_html_text_area_element *ta)
{
struct form_control *control = NULL;
dom_html_form_element *form = NULL;
dom_string *ds_name = NULL;
char *name = NULL;
if (dom_html_text_area_element_get_form(ta, &form) != DOM_NO_ERR)
goto out;
if (dom_html_text_area_element_get_name(ta, &ds_name) != DOM_NO_ERR)
goto out;
if (ds_name != NULL)
name = strndup(dom_string_data(ds_name),
dom_string_byte_length(ds_name));
control = form_new_control(ta, GADGET_TEXTAREA);
if (control == NULL)
goto out;
if (name != NULL) {
/* Hand the name string over */
control->name = name;
name = NULL;
}
if (form != NULL && control != NULL)
form_add_control(find_form(forms, form), control);
out:
if (form != NULL)
dom_node_unref(form);
if (ds_name != NULL)
dom_string_unref(ds_name);
if (name != NULL)
free(name);
return control;
}
/* exported interface documented in render/html_internal.h */
nserror html_css_free_stylesheets(html_content *html)
{
unsigned int i;
guit->misc->schedule(-1, html_css_process_modified_styles, html);
for (i = 0; i != html->stylesheet_count; i++) {
if (html->stylesheets[i].sheet != NULL) {
hlcache_handle_release(html->stylesheets[i].sheet);
}
if (html->stylesheets[i].node != NULL) {
dom_node_unref(html->stylesheets[i].node);
}
}
free(html->stylesheets);
return NSERROR_OK;
}
static struct form_control *
parse_button_element(struct form *forms, dom_html_button_element *button)
{
struct form_control *control = NULL;
dom_exception err;
dom_html_form_element *form = NULL;
dom_string *ds_type = NULL;
dom_string *ds_value = NULL;
dom_string *ds_name = NULL;
err = dom_html_button_element_get_form(button, &form);
if (err != DOM_NO_ERR)
goto out;
err = dom_html_button_element_get_type(button, &ds_type);
if (err != DOM_NO_ERR)
goto out;
if (ds_type == NULL) {
control = form_new_control(button, GADGET_SUBMIT);
} else {
if (dom_string_caseless_lwc_isequal(ds_type,
corestring_lwc_submit)) {
control = form_new_control(button, GADGET_SUBMIT);
} else if (dom_string_caseless_lwc_isequal(ds_type,
corestring_lwc_reset)) {
control = form_new_control(button, GADGET_RESET);
} else {
control = form_new_control(button, GADGET_BUTTON);
}
}
if (control == NULL)
goto out;
err = dom_html_button_element_get_value(button, &ds_value);
if (err != DOM_NO_ERR)
goto out;
err = dom_html_button_element_get_name(button, &ds_name);
if (err != DOM_NO_ERR)
goto out;
if (ds_value != NULL) {
control->value = strndup(
dom_string_data(ds_value),
dom_string_byte_length(ds_value));
if (control->value == NULL) {
form_free_control(control);
control = NULL;
goto out;
}
}
if (ds_name != NULL) {
control->name = strndup(
dom_string_data(ds_name),
dom_string_byte_length(ds_name));
if (control->name == NULL) {
form_free_control(control);
control = NULL;
goto out;
}
}
if (form != NULL && control != NULL)
form_add_control(find_form(forms, form), control);
out:
if (form != NULL)
dom_node_unref(form);
if (ds_type != NULL)
dom_string_unref(ds_type);
if (ds_value != NULL)
dom_string_unref(ds_value);
if (ds_name != NULL)
dom_string_unref(ds_name);
return control;
}
static bool save_complete_libdom_treewalk(dom_node *root,
bool (*callback)(dom_node *node,
save_complete_event_type event_type, void *ctx),
void *ctx)
{
dom_node *node;
node = dom_node_ref(root); /* tree root */
while (node != NULL) {
dom_node *next = NULL;
dom_exception exc;
exc = dom_node_get_first_child(node, &next);
if (exc != DOM_NO_ERR) {
dom_node_unref(node);
break;
}
if (next != NULL) { /* 1. children */
dom_node_unref(node);
node = next;
} else {
exc = dom_node_get_next_sibling(node, &next);
if (exc != DOM_NO_ERR) {
dom_node_unref(node);
break;
}
if (next != NULL) { /* 2. siblings */
if (callback(node, EVENT_LEAVE, ctx) == false) {
return false;
}
dom_node_unref(node);
node = next;
} else { /* 3. ancestor siblings */
while (node != NULL) {
exc = dom_node_get_next_sibling(node,
&next);
if (exc != DOM_NO_ERR) {
dom_node_unref(node);
node = NULL;
break;
}
if (next != NULL) {
dom_node_unref(next);
break;
}
exc = dom_node_get_parent_node(node,
&next);
if (exc != DOM_NO_ERR) {
dom_node_unref(node);
node = NULL;
break;
}
if (callback(node, EVENT_LEAVE,
ctx) == false) {
return false;
}
dom_node_unref(node);
node = next;
}
if (node == NULL)
break;
exc = dom_node_get_next_sibling(node, &next);
if (exc != DOM_NO_ERR) {
dom_node_unref(node);
break;
}
if (callback(node, EVENT_LEAVE, ctx) == false) {
return false;
}
dom_node_unref(node);
node = next;
}
}
assert(node != NULL);
if (callback(node, EVENT_ENTER, ctx) == false) {
return false; /* callback caused early termination */
}
}
return true;
}
svgtiny_code svgtiny_parse_svg(dom_element *svg,
struct svgtiny_parse_state state)
{
float x, y, width, height;
dom_string *view_box;
dom_element *child;
dom_exception exc;
svgtiny_setup_state_local(&state);
svgtiny_parse_position_attributes(svg, state, &x, &y, &width, &height);
svgtiny_parse_paint_attributes(svg, &state);
svgtiny_parse_font_attributes(svg, &state);
exc = dom_element_get_attribute(svg, state.interned_viewBox,
&view_box);
if (exc != DOM_NO_ERR) {
svgtiny_cleanup_state_local(&state);
return svgtiny_LIBDOM_ERROR;
}
if (view_box) {
char *s = strndup(dom_string_data(view_box),
dom_string_byte_length(view_box));
float min_x, min_y, vwidth, vheight;
if (sscanf(s, "%f,%f,%f,%f",
&min_x, &min_y, &vwidth, &vheight) == 4 ||
sscanf(s, "%f %f %f %f",
&min_x, &min_y, &vwidth, &vheight) == 4) {
state.ctm.a = (float) state.viewport_width / vwidth;
state.ctm.d = (float) state.viewport_height / vheight;
state.ctm.e += -min_x * state.ctm.a;
state.ctm.f += -min_y * state.ctm.d;
}
free(s);
dom_string_unref(view_box);
}
svgtiny_parse_transform_attributes(svg, &state);
exc = dom_node_get_first_child(svg, (dom_node **) (void *) &child);
if (exc != DOM_NO_ERR) {
svgtiny_cleanup_state_local(&state);
return svgtiny_LIBDOM_ERROR;
}
while (child != NULL) {
dom_element *next;
dom_node_type nodetype;
svgtiny_code code = svgtiny_OK;
exc = dom_node_get_node_type(child, &nodetype);
if (exc != DOM_NO_ERR) {
dom_node_unref(child);
return svgtiny_LIBDOM_ERROR;
}
if (nodetype == DOM_ELEMENT_NODE) {
dom_string *nodename;
exc = dom_node_get_node_name(child, &nodename);
if (exc != DOM_NO_ERR) {
dom_node_unref(child);
svgtiny_cleanup_state_local(&state);
return svgtiny_LIBDOM_ERROR;
}
if (dom_string_caseless_isequal(state.interned_svg,
nodename))
code = svgtiny_parse_svg(child, state);
else if (dom_string_caseless_isequal(state.interned_g,
nodename))
code = svgtiny_parse_svg(child, state);
else if (dom_string_caseless_isequal(state.interned_a,
nodename))
code = svgtiny_parse_svg(child, state);
else if (dom_string_caseless_isequal(state.interned_path,
nodename))
code = svgtiny_parse_path(child, state);
else if (dom_string_caseless_isequal(state.interned_rect,
nodename))
code = svgtiny_parse_rect(child, state);
else if (dom_string_caseless_isequal(state.interned_circle,
nodename))
code = svgtiny_parse_circle(child, state);
else if (dom_string_caseless_isequal(state.interned_ellipse,
nodename))
code = svgtiny_parse_ellipse(child, state);
else if (dom_string_caseless_isequal(state.interned_line,
nodename))
code = svgtiny_parse_line(child, state);
else if (dom_string_caseless_isequal(state.interned_polyline,
nodename))
code = svgtiny_parse_poly(child, state, false);
else if (dom_string_caseless_isequal(state.interned_polygon,
nodename))
code = svgtiny_parse_poly(child, state, true);
else if (dom_string_caseless_isequal(state.interned_text,
nodename))
code = svgtiny_parse_text(child, state);
dom_string_unref(nodename);
}
if (code != svgtiny_OK) {
dom_node_unref(child);
svgtiny_cleanup_state_local(&state);
return code;
}
exc = dom_node_get_next_sibling(child,
(dom_node **) (void *) &next);
dom_node_unref(child);
if (exc != DOM_NO_ERR) {
svgtiny_cleanup_state_local(&state);
return svgtiny_LIBDOM_ERROR;
}
child = next;
}
svgtiny_cleanup_state_local(&state);
return svgtiny_OK;
}
void svgtiny_free_dom(dom_document *dom) {
dom_node_unref(dom);
}
svgtiny_code svgtiny_parse_svg_from_dom(struct svgtiny_diagram *diagram,
dom_document *document, int viewport_width, int viewport_height)
{
dom_element *svg;
dom_exception exc;
svgtiny_code code;
exc = dom_document_get_document_element(document, &svg);
if (exc != DOM_NO_ERR) {
dom_node_unref(document);
return svgtiny_LIBDOM_ERROR;
}
struct svgtiny_parse_state state;
float x, y, width, height;
assert(diagram);
state.gradient_x1 = NULL;
state.gradient_y1 = NULL;
state.gradient_x2 = NULL;
state.gradient_y2 = NULL;
/* get graphic dimensions */
memset(&state, 0, sizeof(state));
state.diagram = diagram;
state.document = document;
state.viewport_width = viewport_width;
state.viewport_height = viewport_height;
#define SVGTINY_STRING_ACTION2(s,n) \
if (dom_string_create_interned((const uint8_t *) #n, \
strlen(#n), &state.interned_##s) \
!= DOM_NO_ERR) { \
code = svgtiny_LIBDOM_ERROR; \
goto cleanup; \
}
#include "svgtiny_strings.h"
#undef SVGTINY_STRING_ACTION2
svgtiny_parse_position_attributes(svg, state, &x, &y, &width, &height);
diagram->width = width;
diagram->height = height;
/* set up parsing state */
state.viewport_width = width;
state.viewport_height = height;
state.ctm.a = 1; /*(float) viewport_width / (float) width;*/
state.ctm.b = 0;
state.ctm.c = 0;
state.ctm.d = 1; /*(float) viewport_height / (float) height;*/
state.ctm.e = 0; /*x;*/
state.ctm.f = 0; /*y;*/
/*state.style = css_base_style;
state.style.font_size.value.length.value = option_font_size * 0.1;*/
state.fill = 0x000000;
state.stroke = svgtiny_TRANSPARENT;
state.stroke_width = 1;
state.linear_gradient_stop_count = 0;
/* parse tree */
code = svgtiny_parse_svg(svg, state);
dom_node_unref(svg);
cleanup:
svgtiny_cleanup_state_local(&state);
#define SVGTINY_STRING_ACTION2(s,n) \
if (state.interned_##s != NULL) \
dom_string_unref(state.interned_##s);
#include "svgtiny_strings.h"
#undef SVGTINY_STRING_ACTION2
return code;
}
svgtiny_code svgtiny_parse_dom(const char *buffer, size_t size, const char *url, dom_document **output_dom)
{
dom_document *document;
dom_exception exc;
dom_xml_parser *parser;
dom_xml_error err;
dom_element *svg;
dom_string *svg_name;
lwc_string *svg_name_lwc;
assert(buffer);
assert(url);
UNUSED(url);
parser = dom_xml_parser_create(NULL, NULL,
ignore_msg, NULL, &document);
if (parser == NULL)
return svgtiny_LIBDOM_ERROR;
err = dom_xml_parser_parse_chunk(parser, (uint8_t *)buffer, size);
if (err != DOM_XML_OK) {
dom_node_unref(document);
dom_xml_parser_destroy(parser);
return svgtiny_LIBDOM_ERROR;
}
err = dom_xml_parser_completed(parser);
if (err != DOM_XML_OK) {
dom_node_unref(document);
dom_xml_parser_destroy(parser);
return svgtiny_LIBDOM_ERROR;
}
/* We're done parsing, drop the parser.
* We now own the document entirely.
*/
dom_xml_parser_destroy(parser);
/* find root <svg> element */
exc = dom_document_get_document_element(document, &svg);
if (exc != DOM_NO_ERR) {
dom_node_unref(document);
return svgtiny_LIBDOM_ERROR;
}
exc = dom_node_get_node_name(svg, &svg_name);
if (exc != DOM_NO_ERR) {
dom_node_unref(svg);
dom_node_unref(document);
return svgtiny_LIBDOM_ERROR;
}
if (lwc_intern_string("svg", 3 /* SLEN("svg") */,
&svg_name_lwc) != lwc_error_ok) {
dom_string_unref(svg_name);
dom_node_unref(svg);
dom_node_unref(document);
return svgtiny_LIBDOM_ERROR;
}
if (!dom_string_caseless_lwc_isequal(svg_name, svg_name_lwc)) {
lwc_string_unref(svg_name_lwc);
dom_string_unref(svg_name);
dom_node_unref(svg);
dom_node_unref(document);
return svgtiny_NOT_SVG;
}
dom_node_unref(svg);
lwc_string_unref(svg_name_lwc);
dom_string_unref(svg_name);
*output_dom = document;
return svgtiny_OK;
}
svgtiny_code svgtiny_parse_text(dom_element *text,
struct svgtiny_parse_state state)
{
float x, y, width, height;
float px, py;
dom_node *child;
dom_exception exc;
svgtiny_setup_state_local(&state);
svgtiny_parse_position_attributes(text, state,
&x, &y, &width, &height);
svgtiny_parse_font_attributes(text, &state);
svgtiny_parse_transform_attributes(text, &state);
px = state.ctm.a * x + state.ctm.c * y + state.ctm.e;
py = state.ctm.b * x + state.ctm.d * y + state.ctm.f;
/* state.ctm.e = px - state.origin_x; */
/* state.ctm.f = py - state.origin_y; */
/*struct css_style style = state.style;
style.font_size.value.length.value *= state.ctm.a;*/
exc = dom_node_get_first_child(text, &child);
if (exc != DOM_NO_ERR) {
return svgtiny_LIBDOM_ERROR;
svgtiny_cleanup_state_local(&state);
}
while (child != NULL) {
dom_node *next;
dom_node_type nodetype;
svgtiny_code code = svgtiny_OK;
exc = dom_node_get_node_type(child, &nodetype);
if (exc != DOM_NO_ERR) {
dom_node_unref(child);
svgtiny_cleanup_state_local(&state);
return svgtiny_LIBDOM_ERROR;
}
if (nodetype == DOM_ELEMENT_NODE) {
dom_string *nodename;
exc = dom_node_get_node_name(child, &nodename);
if (exc != DOM_NO_ERR) {
dom_node_unref(child);
svgtiny_cleanup_state_local(&state);
return svgtiny_LIBDOM_ERROR;
}
if (dom_string_caseless_isequal(nodename,
state.interned_tspan))
code = svgtiny_parse_text((dom_element *)child,
state);
dom_string_unref(nodename);
} else if (nodetype == DOM_TEXT_NODE) {
struct svgtiny_shape *shape = svgtiny_add_shape(&state);
dom_string *content;
if (shape == NULL) {
dom_node_unref(child);
svgtiny_cleanup_state_local(&state);
return svgtiny_OUT_OF_MEMORY;
}
exc = dom_text_get_whole_text(child, &content);
if (exc != DOM_NO_ERR) {
dom_node_unref(child);
svgtiny_cleanup_state_local(&state);
return svgtiny_LIBDOM_ERROR;
}
if (content != NULL) {
shape->text = strndup(dom_string_data(content),
dom_string_byte_length(content));
dom_string_unref(content);
} else {
shape->text = strdup("");
}
shape->text_x = px;
shape->text_y = py;
state.diagram->shape_count++;
}
if (code != svgtiny_OK) {
dom_node_unref(child);
svgtiny_cleanup_state_local(&state);
return code;
}
exc = dom_node_get_next_sibling(child, &next);
dom_node_unref(child);
if (exc != DOM_NO_ERR) {
svgtiny_cleanup_state_local(&state);
return svgtiny_LIBDOM_ERROR;
}
child = next;
}
svgtiny_cleanup_state_local(&state);
return svgtiny_OK;
}
static struct form_control *
parse_input_element(struct form *forms, dom_html_input_element *input)
{
struct form_control *control = NULL;
dom_html_form_element *form = NULL;
dom_string *ds_type = NULL;
dom_string *ds_name = NULL;
dom_string *ds_value = NULL;
char *name = NULL;
if (dom_html_input_element_get_form(input, &form) != DOM_NO_ERR)
goto out;
if (dom_html_input_element_get_type(input, &ds_type) != DOM_NO_ERR)
goto out;
if (dom_html_input_element_get_name(input, &ds_name) != DOM_NO_ERR)
goto out;
if (ds_name != NULL)
name = strndup(dom_string_data(ds_name),
dom_string_byte_length(ds_name));
if (ds_type != NULL && dom_string_caseless_lwc_isequal(ds_type,
corestring_lwc_password)) {
control = form_new_control(input, GADGET_PASSWORD);
} else if (ds_type != NULL && dom_string_caseless_lwc_isequal(ds_type,
corestring_lwc_file)) {
control = form_new_control(input, GADGET_FILE);
} else if (ds_type != NULL && dom_string_caseless_lwc_isequal(ds_type,
corestring_lwc_hidden)) {
control = form_new_control(input, GADGET_HIDDEN);
} else if (ds_type != NULL && dom_string_caseless_lwc_isequal(ds_type,
corestring_lwc_checkbox)) {
control = form_new_control(input, GADGET_CHECKBOX);
} else if (ds_type != NULL && dom_string_caseless_lwc_isequal(ds_type,
corestring_lwc_radio)) {
control = form_new_control(input, GADGET_RADIO);
} else if (ds_type != NULL && dom_string_caseless_lwc_isequal(ds_type,
corestring_lwc_submit)) {
control = form_new_control(input, GADGET_SUBMIT);
} else if (ds_type != NULL && dom_string_caseless_lwc_isequal(ds_type,
corestring_lwc_reset)) {
control = form_new_control(input, GADGET_RESET);
} else if (ds_type != NULL && dom_string_caseless_lwc_isequal(ds_type,
corestring_lwc_button)) {
control = form_new_control(input, GADGET_BUTTON);
} else if (ds_type != NULL && dom_string_caseless_lwc_isequal(ds_type,
corestring_lwc_image)) {
control = form_new_control(input, GADGET_IMAGE);
} else {
control = form_new_control(input, GADGET_TEXTBOX);
}
if (control == NULL)
goto out;
if (name != NULL) {
/* Hand the name string over */
control->name = name;
name = NULL;
}
if (control->type == GADGET_CHECKBOX || control->type == GADGET_RADIO) {
bool selected;
if (dom_html_input_element_get_checked(
input, &selected) == DOM_NO_ERR) {
control->selected = selected;
}
}
if (control->type == GADGET_PASSWORD ||
control->type == GADGET_TEXTBOX) {
int32_t maxlength;
if (dom_html_input_element_get_max_length(
input, &maxlength) != DOM_NO_ERR) {
maxlength = -1;
}
if (maxlength >= 0) {
/* Got valid maxlength */
control->maxlength = maxlength;
} else {
/* Input has no maxlength attr, or
* dom_html_input_element_get_max_length failed.
*
* Set it to something insane. */
control->maxlength = UINT_MAX;
}
}
if (control->type != GADGET_FILE && control->type != GADGET_IMAGE) {
if (dom_html_input_element_get_value(
input, &ds_value) == DOM_NO_ERR) {
if (ds_value != NULL) {
control->value = strndup(
dom_string_data(ds_value),
dom_string_byte_length(ds_value));
if (control->value == NULL) {
form_free_control(control);
control = NULL;
goto out;
}
control->length = strlen(control->value);
}
}
if (control->type == GADGET_TEXTBOX ||
control->type == GADGET_PASSWORD) {
if (control->value == NULL) {
control->value = strdup("");
if (control->value == NULL) {
form_free_control(control);
control = NULL;
goto out;
}
control->length = 0;
}
control->initial_value = strdup(control->value);
if (control->initial_value == NULL) {
form_free_control(control);
control = NULL;
goto out;
}
}
}
if (form != NULL && control != NULL)
form_add_control(find_form(forms, form), control);
out:
if (form != NULL)
dom_node_unref(form);
if (ds_type != NULL)
dom_string_unref(ds_type);
if (ds_name != NULL)
dom_string_unref(ds_name);
if (ds_value != NULL)
dom_string_unref(ds_value);
if (name != NULL)
free(name);
return control;
}
void binding_destroy_document(dom_document *doc)
{
dom_node_unref(doc);
}