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Rework form acessors to deal with binding changes

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This commit is contained in:
Vincent Sanders 2012-07-14 11:16:37 -06:00
parent b42c43dc01
commit 6ab102c3b1
6 changed files with 484 additions and 465 deletions
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3
Makefile.sources
View File

@ -12,7 +12,8 @@ S_FETCHERS := curl.c data.c file.c about.c resource.c
S_CSS := css.c dump.c internal.c select.c utils.c
S_RENDER := box.c box_construct.c box_normalise.c \
font.c form.c html.c html_interaction.c html_redraw.c \
font.c form.c \
html.c html_interaction.c html_redraw.c html_forms.c \
libdom_binding.c imagemap.c layout.c list.c search.c table.c \
textinput.c textplain.c

8
render/box_construct.c
View File

@ -2471,7 +2471,7 @@ bool box_input(BOX_SPECIAL_PARAMS)
dom_element_get_attribute(n, kstr_type, &type);
gadget = binding_get_control_for_node(content->parser_binding, n);
gadget = html_forms_get_control_for_node(content->forms, n);
if (gadget == NULL)
goto no_memory;
box->gadget = gadget;
@ -2638,7 +2638,7 @@ bool box_button(BOX_SPECIAL_PARAMS)
{
struct form_control *gadget;
gadget = binding_get_control_for_node(content->parser_binding, n);
gadget = html_forms_get_control_for_node(content->forms, n);
if (!gadget)
return false;
@ -2666,7 +2666,7 @@ bool box_select(BOX_SPECIAL_PARAMS)
dom_node *next, *next2;
dom_exception err;
gadget = binding_get_control_for_node(content->parser_binding, n);
gadget = html_forms_get_control_for_node(content->forms, n);
if (gadget == NULL)
return false;
@ -2879,7 +2879,7 @@ bool box_textarea(BOX_SPECIAL_PARAMS)
size_t len;
box->type = BOX_INLINE_BLOCK;
box->gadget = binding_get_control_for_node(content->parser_binding, n);
box->gadget = html_forms_get_control_for_node(content->forms, n);
if (box->gadget == NULL)
return false;
box->gadget->box = box;

2
render/html.c
View File

@ -2348,7 +2348,7 @@ static bool html_convert(struct content *c)
}
/* Retrieve forms from parser */
htmlc->forms = binding_get_forms(htmlc->parser_binding);
htmlc->forms = html_forms_get_forms(htmlc->encoding, htmlc->document);
for (f = htmlc->forms; f != NULL; f = f->prev) {
char *action;
url_func_result res;

458
render/html_forms.c Normal file
View File

@ -0,0 +1,458 @@
/*
* Copyright 2011 Vincent Sanders <vince@netsurf-browser.org>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* NetSurf is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "render/form.h"
#include "render/html_internal.h"
#include "utils/log.h"
/**
* process form element from dom
*/
static struct form *
parse_form_element(const char *docenc, dom_node *node)
{
dom_string *ds_action = NULL;
dom_string *ds_charset = NULL;
dom_string *ds_target = NULL;
dom_string *ds_method = NULL;
dom_string *ds_enctype = NULL;
char *action = NULL, *charset = NULL, *target = NULL;
form_method method;
dom_html_form_element *formele = (dom_html_form_element *)(node);
struct form * ret = NULL;
/* Retrieve the attributes from the node */
if (dom_html_form_element_get_action(formele, &ds_action) != DOM_NO_ERR)
goto out;
if (dom_html_form_element_get_accept_charset(formele, &ds_charset) != DOM_NO_ERR)
goto out;
if (dom_html_form_element_get_target(formele, &ds_target) != DOM_NO_ERR)
goto out;
if (dom_html_form_element_get_method(formele, &ds_method) != DOM_NO_ERR)
goto out;
if (dom_html_form_element_get_enctype(formele, &ds_enctype) != DOM_NO_ERR)
goto out;
/* Extract the plain attributes ready for use. We have to do this
* because we cannot guarantee that the dom_strings are NULL terminated
* and thus we copy them.
*/
if (ds_action != NULL)
action = strndup(dom_string_data(ds_action),
dom_string_byte_length(ds_action));
if (ds_charset != NULL)
charset = strndup(dom_string_data(ds_charset),
dom_string_byte_length(ds_charset));
if (ds_target != NULL)
target = strndup(dom_string_data(ds_target),
dom_string_byte_length(ds_target));
/* Determine the method */
method = method_GET;
if (ds_method != NULL) {
if (strncasecmp("post", dom_string_data(ds_method),
dom_string_byte_length(ds_method)) == 0) {
method = method_POST_URLENC;
if (ds_enctype != NULL) {
if (strncasecmp("multipart/form-data",
dom_string_data(ds_enctype),
dom_string_byte_length(ds_enctype)) == 0) {
method = method_POST_MULTIPART;
}
}
}
}
/* Construct the form object */
ret = form_new(node, action, target, method, charset, docenc);
out:
if (ds_action != NULL)
dom_string_unref(ds_action);
if (ds_charset != NULL)
dom_string_unref(ds_charset);
if (ds_target != NULL)
dom_string_unref(ds_target);
if (ds_method != NULL)
dom_string_unref(ds_method);
if (ds_enctype != NULL)
dom_string_unref(ds_enctype);
if (action != NULL)
free(action);
if (charset != NULL)
free(charset);
if (target != NULL)
free(charset);
return ret;
}
/* 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 nforms, n;
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;
}
static struct form *
find_form(struct form *forms, dom_html_form_element *form)
{
while (forms != NULL) {
if (forms->node == form)
break;
forms = forms->prev;
}
return forms;
}
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;
char *type = 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 {
type = strndup(dom_string_data(ds_type),
dom_string_byte_length(ds_type));
if (strcasecmp(type, "submit") == 0) {
control = form_new_control(button, GADGET_SUBMIT);
} else if (strcasecmp(type, "reset") == 0) {
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);
if (type == NULL)
free(type);
return control;
}
static struct form_control *
parse_input_element(struct form *forms, dom_html_input_element *input)
{
struct form_control *control;
dom_html_form_element *form = NULL;
dom_string *ds_type = NULL;
dom_string *ds_name = NULL;
dom_string *ds_value = NULL;
char *type = 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 (ds_type != NULL)
type = strndup(dom_string_data(ds_type),
dom_string_byte_length(ds_type));
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 (type != NULL && strcasecmp(type, "password") == 0) {
control = form_new_control(input, GADGET_PASSWORD);
} else if (type != NULL && strcasecmp(type, "file") == 0) {
control = form_new_control(input, GADGET_FILE);
} else if (type != NULL && strcasecmp(type, "hidden") == 0) {
control = form_new_control(input, GADGET_HIDDEN);
} else if (type != NULL && strcasecmp(type, "checkbox") == 0) {
control = form_new_control(input, GADGET_CHECKBOX);
} else if (type != NULL && strcasecmp(type, "radio") == 0) {
control = form_new_control(input, GADGET_RADIO);
} else if (type != NULL && strcasecmp(type, "submit") == 0) {
control = form_new_control(input, GADGET_SUBMIT);
} else if (type != NULL && strcasecmp(type, "reset") == 0) {
control = form_new_control(input, GADGET_RESET);
} else if (type != NULL && strcasecmp(type, "button") == 0) {
control = form_new_control(input, GADGET_BUTTON);
} else if (type != NULL && strcasecmp(type, "image") == 0) {
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) {
unsigned long maxlength;
if (dom_html_input_element_get_max_length(
input, &maxlength) == DOM_NO_ERR) {
control->maxlength = maxlength;
}
}
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 (type != NULL)
free(type);
if (name != NULL)
free(name);
return control;
}
static struct form_control *
invent_fake_gadget(dom_node *node)
{
struct form_control *ctl = form_new_control(node, GADGET_HIDDEN);
if (ctl != NULL) {
ctl->value = strdup("");
ctl->initial_value = strdup("");
ctl->name = strdup("foo");
if (ctl->value == NULL || ctl->initial_value == NULL ||
ctl->name == NULL) {
form_free_control(ctl);
ctl = NULL;
}
}
return ctl;
}
/* documented in html_internal.h */
struct form_control *html_forms_get_control_for_node(struct form *forms, dom_node *node)
{
struct form *f;
struct form_control *ctl = NULL;
dom_exception err;
dom_string *ds_name = NULL;
char *node_name = NULL;
if (forms == NULL)
return NULL;
/* Step one, see if we already have a control */
for (f = forms; f != NULL; f = f->prev) {
for (ctl = f->controls; ctl != NULL; ctl = ctl->next) {
if (ctl->node == node)
return ctl;
}
}
/* Step two, extract the node's name so we can construct a gadget. */
err = dom_element_get_tag_name(node, &ds_name);
if (err == DOM_NO_ERR && ds_name != NULL) {
node_name = strndup(dom_string_data(ds_name),
dom_string_byte_length(ds_name));
}
/* Step three, attempt to work out what gadget to make */
if (node_name && strcasecmp(node_name, "button") == 0)
ctl = parse_button_element(forms,
(dom_html_button_element *) node);
else if (node_name && strcasecmp(node_name, "input") == 0)
ctl = parse_input_element(forms,
(dom_html_input_element *) node);
/* If all else fails, fake gadget time */
if (ctl == NULL)
ctl = invent_fake_gadget(node);
if (ds_name != NULL)
dom_string_unref(ds_name);
if (node_name != NULL)
free(node_name);
return ctl;
}

4
render/html_internal.h
View File

@ -140,6 +140,10 @@ void html_mouse_action(struct content *c, struct browser_window *bw,
void html_overflow_scroll_callback(void *client_data,
struct scrollbar_msg_data *scrollbar_data);
/* in render/html_forms.c */
struct form *html_forms_get_forms(const char *docenc, dom_html_document *doc);
struct form_control *html_forms_get_control_for_node(struct form *forms, dom_node *node);
/* Useful dom_string pointers */
struct dom_string;

474
render/libdom_binding.c
View File

@ -24,46 +24,29 @@
#include "utils/log.h"
typedef struct binding_ctx {
dom_hubbub_parser *parser;
dom_document *extracted;
struct form *forms;
} binding_ctx;
binding_error binding_create_tree(void **ctx, const char *charset, bool enable_script, dom_script script, void *context)
{
dom_hubbub_parser *parser = NULL;
binding_ctx *bctx = NULL;
bctx = calloc(sizeof(*bctx), 1);
if (bctx == NULL) {
LOG(("Can't allocate memory for binding context"));
return BINDING_NOMEM;
}
parser = dom_hubbub_parser_create(charset, true, enable_script, NULL, script, context);
if (parser == NULL) {
LOG(("Can't create Hubbub Parser\n"));
return BINDING_NOMEM;
}
bctx->parser = parser;
*ctx = bctx;
if (parser == NULL) {
LOG(("Can't create Hubbub Parser\n"));
return BINDING_NOMEM;
}
*ctx = parser;
return BINDING_OK;
}
binding_error binding_destroy_tree(void *ctx)
{
struct binding_ctx *bctx = ctx;
dom_hubbub_parser_destroy(bctx->parser);
free(bctx);
dom_hubbub_parser_destroy(ctx);
return BINDING_OK;
}
binding_error binding_parse_chunk(void *ctx, const uint8_t *data, size_t len)
{
struct binding_ctx *bctx = ctx;
dom_hubbub_error error;
error = dom_hubbub_parser_parse_chunk(bctx->parser, data, len);
error = dom_hubbub_parser_parse_chunk(ctx, data, len);
if (error == (DOM_HUBBUB_HUBBUB_ERR | HUBBUB_ENCODINGCHANGE)) {
return BINDING_ENCODINGCHANGE;
} else if (error != DOM_HUBBUB_OK) {
@ -74,22 +57,20 @@ binding_error binding_parse_chunk(void *ctx, const uint8_t *data, size_t len)
binding_error binding_parse_completed(void *ctx)
{
struct binding_ctx *bctx = ctx;
dom_hubbub_error error;
error = dom_hubbub_parser_completed(bctx->parser);
if (error != DOM_HUBBUB_OK) {
error = dom_hubbub_parser_completed(ctx);
if (error != DOM_HUBBUB_OK) {
return BINDING_NOMEM;
}
}
return BINDING_OK;
}
const char *binding_get_encoding(void *ctx, binding_encoding_source *source)
{
struct binding_ctx *bctx = ctx;
dom_hubbub_encoding_source hubbub_src;
const char *encoding;
encoding = dom_hubbub_parser_get_encoding(bctx->parser, &hubbub_src);
encoding = dom_hubbub_parser_get_encoding(ctx, &hubbub_src);
switch (hubbub_src) {
case DOM_HUBBUB_ENCODING_SOURCE_HEADER:
@ -110,396 +91,17 @@ const char *binding_get_encoding(void *ctx, binding_encoding_source *source)
dom_document *binding_get_document(void *ctx, binding_quirks_mode *quirks)
{
struct binding_ctx *bctx = ctx;
if (bctx->extracted == NULL)
bctx->extracted = dom_hubbub_parser_get_document(bctx->parser);
return bctx->extracted;
}
static struct form *
parse_form_element(dom_hubbub_parser *parser, dom_node *node)
{
dom_string *ds_action = NULL;
dom_string *ds_charset = NULL;
dom_string *ds_target = NULL;
dom_string *ds_method = NULL;
dom_string *ds_enctype = NULL;
char *action = NULL, *charset = NULL, *target = NULL;
form_method method;
dom_html_form_element *formele = (dom_html_form_element *)(node);
struct form * ret = NULL;
const char *docenc;
/* Retrieve the attributes from the node */
if (dom_html_form_element_get_action(formele, &ds_action) != DOM_NO_ERR)
goto out;
if (dom_html_form_element_get_accept_charset(formele, &ds_charset) != DOM_NO_ERR)
goto out;
if (dom_html_form_element_get_target(formele, &ds_target) != DOM_NO_ERR)
goto out;
if (dom_html_form_element_get_method(formele, &ds_method) != DOM_NO_ERR)
goto out;
if (dom_html_form_element_get_enctype(formele, &ds_enctype) != DOM_NO_ERR)
goto out;
/* Extract the plain attributes ready for use. We have to do this
* because we cannot guarantee that the dom_strings are NULL terminated
* and thus we copy them.
*/
if (ds_action != NULL)
action = strndup(dom_string_data(ds_action),
dom_string_byte_length(ds_action));
if (ds_charset != NULL)
charset = strndup(dom_string_data(ds_charset),
dom_string_byte_length(ds_charset));
if (ds_target != NULL)
target = strndup(dom_string_data(ds_target),
dom_string_byte_length(ds_target));
/* Determine the method */
method = method_GET;
if (ds_method != NULL) {
if (strncasecmp("post", dom_string_data(ds_method),
dom_string_byte_length(ds_method)) == 0) {
method = method_POST_URLENC;
if (ds_enctype != NULL) {
if (strncasecmp("multipart/form-data",
dom_string_data(ds_enctype),
dom_string_byte_length(ds_enctype)) == 0) {
method = method_POST_MULTIPART;
}
}
}
}
/* Retrieve the document encoding */
{
dom_hubbub_encoding_source hubbub_src;
docenc = dom_hubbub_parser_get_encoding(parser, &hubbub_src);
}
/* Construct the form object */
ret = form_new(node, action, target, method, charset, docenc);
out:
if (ds_action != NULL)
dom_string_unref(ds_action);
if (ds_charset != NULL)
dom_string_unref(ds_charset);
if (ds_target != NULL)
dom_string_unref(ds_target);
if (ds_method != NULL)
dom_string_unref(ds_method);
if (ds_enctype != NULL)
dom_string_unref(ds_enctype);
if (action != NULL)
free(action);
if (charset != NULL)
free(charset);
if (target != NULL)
free(charset);
return ret;
return dom_hubbub_parser_get_document(ctx);
}
struct form *binding_get_forms(void *ctx)
{
binding_ctx *bctx = ctx;
binding_quirks_mode ignored;
dom_html_document *doc =
(dom_html_document *)binding_get_document(ctx, &ignored);
dom_html_collection *forms;
struct form *ret = NULL, *newf;
dom_node *node;
unsigned long nforms, n;
if (bctx->forms != NULL)
return bctx->forms;
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(bctx->parser, 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);
bctx->forms = ret;
return ret;
return NULL;
}
static struct form *
find_form(struct form *forms, dom_html_form_element *form)
{
while (forms != NULL) {
if (forms->node == form)
break;
forms = forms->prev;
}
return forms;
}
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;
char *type = 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 {
type = strndup(dom_string_data(ds_type),
dom_string_byte_length(ds_type));
if (strcasecmp(type, "submit") == 0) {
control = form_new_control(button, GADGET_SUBMIT);
} else if (strcasecmp(type, "reset") == 0) {
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);
if (type == NULL)
free(type);
return control;
}
static struct form_control *
parse_input_element(struct form *forms, dom_html_input_element *input)
{
struct form_control *control;
dom_html_form_element *form = NULL;
dom_string *ds_type = NULL;
dom_string *ds_name = NULL;
dom_string *ds_value = NULL;
char *type = 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 (ds_type != NULL)
type = strndup(dom_string_data(ds_type),
dom_string_byte_length(ds_type));
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 (type != NULL && strcasecmp(type, "password") == 0) {
control = form_new_control(input, GADGET_PASSWORD);
} else if (type != NULL && strcasecmp(type, "file") == 0) {
control = form_new_control(input, GADGET_FILE);
} else if (type != NULL && strcasecmp(type, "hidden") == 0) {
control = form_new_control(input, GADGET_HIDDEN);
} else if (type != NULL && strcasecmp(type, "checkbox") == 0) {
control = form_new_control(input, GADGET_CHECKBOX);
} else if (type != NULL && strcasecmp(type, "radio") == 0) {
control = form_new_control(input, GADGET_RADIO);
} else if (type != NULL && strcasecmp(type, "submit") == 0) {
control = form_new_control(input, GADGET_SUBMIT);
} else if (type != NULL && strcasecmp(type, "reset") == 0) {
control = form_new_control(input, GADGET_RESET);
} else if (type != NULL && strcasecmp(type, "button") == 0) {
control = form_new_control(input, GADGET_BUTTON);
} else if (type != NULL && strcasecmp(type, "image") == 0) {
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) {
unsigned long maxlength;
if (dom_html_input_element_get_max_length(
input, &maxlength) == DOM_NO_ERR) {
control->maxlength = maxlength;
}
}
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 (type != NULL)
free(type);
if (name != NULL)
free(name);
return control;
}
static struct form_control *
invent_fake_gadget(dom_node *node)
struct form_control *binding_get_control_for_node(void *ctx, dom_node *node)
{
/** \todo implement properly */
struct form_control *ctl = form_new_control(node, GADGET_HIDDEN);
if (ctl != NULL) {
ctl->value = strdup("");
@ -512,53 +114,7 @@ invent_fake_gadget(dom_node *node)
ctl = NULL;
}
}
return ctl;
}
struct form_control *binding_get_control_for_node(void *ctx, dom_node *node)
{
struct form *f;
struct form_control *ctl = NULL;
dom_exception err;
dom_string *ds_name = NULL;
char *node_name = NULL;
binding_ctx *bctx = ctx;
if (bctx->forms == NULL)
return NULL;
/* Step one, see if we already have a control */
for (f = bctx->forms; f != NULL; f = f->prev) {
for (ctl = f->controls; ctl != NULL; ctl = ctl->next) {
if (ctl->node == node)
return ctl;
}
}
/* Step two, extract the node's name so we can construct a gadget. */
err = dom_element_get_tag_name(node, &ds_name);
if (err == DOM_NO_ERR && ds_name != NULL) {
node_name = strndup(dom_string_data(ds_name),
dom_string_byte_length(ds_name));
}
/* Step three, attempt to work out what gadget to make */
if (node_name && strcasecmp(node_name, "button") == 0)
ctl = parse_button_element(bctx->forms,
(dom_html_button_element *) node);
else if (node_name && strcasecmp(node_name, "input") == 0)
ctl = parse_input_element(bctx->forms,
(dom_html_input_element *) node);
/* If all else fails, fake gadget time */
if (ctl == NULL)
ctl = invent_fake_gadget(node);
if (ds_name != NULL)
dom_string_unref(ds_name);
if (node_name != NULL)
free(node_name);
return ctl;
}