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authorJohn Mark Bell <jmb@netsurf-browser.org>2010-08-30 13:06:19 +0000
committerJohn Mark Bell <jmb@netsurf-browser.org>2010-08-30 13:06:19 +0000
commitb657c277f517f4ab0a4da21e4f8c4cb6f8f53013 (patch)
tree4ce25caee01c0a2a2ebbe052999b5eb8a2fbe2e3 /src/html/html_form_element.c
parent229af12d7ab2c071a6888eb8ffc49bb0bbeb9ddd (diff)
downloadlibdom-b657c277f517f4ab0a4da21e4f8c4cb6f8f53013.tar.gz
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Merge branches/struggleyb/libdom-html to trunk.
A few additional fixes to reduce the number of regressions to single figures. svn path=/trunk/dom/; revision=10724
Diffstat (limited to 'src/html/html_form_element.c')
-rw-r--r--src/html/html_form_element.c256
1 files changed, 256 insertions, 0 deletions
diff --git a/src/html/html_form_element.c b/src/html/html_form_element.c
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+++ b/src/html/html_form_element.c
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+/*
+ * This file is part of libdom.
+ * Licensed under the MIT License,
+ * http://www.opensource.org/licenses/mit-license.php
+ * Copyright 2009 Bo Yang <struggleyb.nku.com>
+ */
+
+#include <assert.h>
+
+#include "html/html_form_element.h"
+
+#include "html/html_collection.h"
+
+#include "core/node.h"
+#include "core/document.h"
+#include "utils/utils.h"
+
+static struct dom_element_protected_vtable _protect_vtable = {
+ {
+ DOM_NODE_PROTECT_VTABLE_HTML_FORM_ELEMENT
+ },
+ DOM_HTML_FORM_ELEMENT_PROTECT_VTABLE
+};
+
+static bool _dom_is_form_control(struct dom_node_internal *node);
+
+/**
+ * Create a dom_html_form_element object
+ *
+ * \param doc The document object
+ * \param ele The returned element object
+ * \return DOM_NO_ERR on success, appropriate dom_exception on failure.
+ */
+dom_exception _dom_html_form_element_create(struct dom_document *doc,
+ struct dom_html_form_element **ele)
+{
+ *ele = _dom_document_alloc(doc, NULL, sizeof(dom_html_form_element));
+ if (*ele == NULL)
+ return DOM_NO_MEM_ERR;
+
+ /* Set up vtables */
+ struct dom_node_internal *node = (struct dom_node_internal *) *ele;
+ node->base.vtable = &_dom_element_vtable;
+ node->vtable = &_protect_vtable;
+
+ return _dom_html_form_element_initialise(doc, *ele);
+}
+
+/**
+ * Initialise a dom_html_form_element object
+ *
+ * \param doc The document object
+ * \param ele The dom_html_form_element object
+ * \return DOM_NO_ERR on success, appropriate dom_exception on failure.
+ */
+dom_exception _dom_html_form_element_initialise(struct dom_document *doc,
+ struct dom_html_form_element *ele)
+{
+ const char *str = "FORM";
+ lwc_string *name = NULL;
+ dom_exception err;
+
+ err = _dom_document_create_lwcstring(doc, (const uint8_t *) str, SLEN(str),
+ &name);
+ if (err != DOM_NO_ERR)
+ return err;
+
+ err = _dom_html_element_initialise(doc, &ele->base, name, NULL, NULL);
+ _dom_document_unref_lwcstring(doc, name);
+
+ ele->col = NULL;
+
+ return err;
+}
+
+/**
+ * Finalise a dom_html_form_element object
+ *
+ * \param doc The document object
+ * \param ele The dom_html_form_element object
+ */
+void _dom_html_form_element_finalise(struct dom_document *doc,
+ struct dom_html_form_element *ele)
+{
+ _dom_html_element_finalise(doc, &ele->base);
+}
+
+/**
+ * Destroy a dom_html_form_element object
+ *
+ * \param doc The document object
+ * \param ele The dom_html_form_element object
+ */
+void _dom_html_form_element_destroy(struct dom_document *doc,
+ struct dom_html_form_element *ele)
+{
+ _dom_html_form_element_finalise(doc, ele);
+ _dom_document_alloc(doc, ele, 0);
+}
+
+/*------------------------------------------------------------------------*/
+/* The protected virtual functions */
+
+/* The virtual function used to parse attribute value, see src/core/element.c
+ * for detail */
+dom_exception _dom_html_form_element_parse_attribute(dom_element *ele,
+ struct dom_string *name, struct dom_string *value,
+ struct dom_string **parsed)
+{
+ UNUSED(ele);
+ UNUSED(name);
+
+ dom_string_ref(value);
+ *parsed = value;
+
+ return DOM_NO_ERR;
+}
+
+/* The virtual destroy function, see src/core/node.c for detail */
+void _dom_virtual_html_form_element_destroy(dom_node_internal *node)
+{
+ struct dom_document *doc = dom_node_get_owner(node);
+ _dom_html_form_element_destroy(doc, (struct dom_html_form_element *) node);
+}
+
+/* The virtual allocation function, see src/core/node.c for detail */
+dom_exception _dom_html_form_element_alloc(struct dom_document *doc,
+ struct dom_node_internal *n, struct dom_node_internal **ret)
+{
+ UNUSED(n);
+
+ *ret = _dom_document_alloc(doc, NULL, sizeof(dom_html_form_element));
+ if (*ret == NULL)
+ return DOM_NO_MEM_ERR;
+
+ return DOM_NO_ERR;
+}
+
+/* The virtual copy function, see src/core/node.c for detail */
+dom_exception _dom_html_form_element_copy(struct dom_node_internal *new,
+ struct dom_node_internal *old)
+{
+ return _dom_html_element_copy(new, old);
+}
+
+/*-----------------------------------------------------------------------*/
+/* Public APIs */
+
+/**
+ * Get the form controls under this form element
+ *
+ * \param ele The form object
+ * \param col The collection of form controls
+ * \return DOM_NO_ERR on success, appropriate dom_exception on failure.
+ */
+dom_exception dom_html_form_element_get_elements(dom_html_form_element *ele,
+ struct dom_html_collection **col)
+{
+ dom_exception err;
+
+ if (ele->col == NULL) {
+ dom_document *doc = dom_node_get_owner(ele);
+ assert(doc != NULL);
+ err = _dom_html_collection_create(doc,
+ (dom_node_internal *) ele,
+ _dom_is_form_control, col);
+ if (err != DOM_NO_ERR)
+ return err;
+
+ ele->col = *col;
+ }
+
+ *col = ele->col;
+ dom_html_collection_ref(*col);
+
+ return DOM_NO_ERR;
+}
+
+/**
+ * Get the number of form controls under this form element
+ *
+ * \param ele The form object
+ * \param len The number of controls
+ * \return DOM_NO_ERR on success, appropriate dom_exception on failure.
+ */
+dom_exception dom_html_form_element_get_length(dom_html_form_element *ele,
+ unsigned long *len)
+{
+ dom_exception err;
+
+ if (ele->col == NULL) {
+ dom_document *doc = dom_node_get_owner(ele);
+ assert(doc != NULL);
+ err = _dom_html_collection_create(doc,
+ (dom_node_internal *) ele,
+ _dom_is_form_control, &ele->col);
+ if (err != DOM_NO_ERR)
+ return err;
+ }
+
+ return dom_html_collection_get_length(ele->col, len);
+}
+
+/**
+ * Submit this form
+ *
+ * \param ele The form object
+ * \return DOM_NO_ERR on success, appropriate dom_exception on failure.
+ */
+dom_exception dom_html_form_element_submit(dom_html_form_element *ele)
+{
+ struct dom_document *doc = dom_node_get_owner(ele);
+ bool success = false;
+ assert(doc != NULL);
+
+ /* Dispatch an event and let the default action handler to deal with
+ * the submit action, and a 'submit' event is bubbling and cancelable
+ */
+ return _dom_dispatch_generic_event(doc, (dom_event_target *) ele,
+ (const uint8_t *) "submit", SLEN("submit"), true,
+ true, &success);
+}
+
+/**
+ * Reset this form
+ *
+ * \param ele The form object
+ * \return DOM_NO_ERR on success, appropriate dom_exception on failure.
+ */
+dom_exception dom_html_form_element_reset(dom_html_form_element *ele)
+{
+ struct dom_document *doc = dom_node_get_owner(ele);
+ bool success = false;
+ assert(doc != NULL);
+
+ /* Dispatch an event and let the default action handler to deal with
+ * the reset action, and a 'reset' event is bubbling and cancelable
+ */
+ return _dom_dispatch_generic_event(doc, (dom_event_target *) ele,
+ (const uint8_t *) "reset", SLEN("reset"), true,
+ true, &success);
+}
+
+/*-----------------------------------------------------------------------*/
+/* Internal functions */
+
+/* Callback function to test whether certain node is a form control, see
+ * src/html/html_collection.h for detail. */
+static bool _dom_is_form_control(struct dom_node_internal *node)
+{
+ assert(node->type == DOM_ELEMENT_NODE);
+ dom_html_element *ele = (dom_html_element *) node;
+
+ return ele->form != NULL;
+}
+