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Refactor html form dataset collection

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Factor out FormDatum collection for <input>
Improve early return logic for getting the FormDatum from an <input>
Condense element type patterns
This commit is contained in:
Anthony Urena 2015-10-06 11:53:00 -04:00
parent 1f45a736e5
commit 31980a7a34
2 changed files with 79 additions and 84 deletions
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123
components/script/dom/htmlformelement.rs
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@ -229,7 +229,43 @@ impl HTMLFormElement {
win.r().pipeline(), load_data)).unwrap();
}
pub fn get_form_dataset<'b>(&self, submitter: Option<FormSubmitter<'b>>) -> Vec<FormDatum> {
fn get_unclean_dataset<'a>(&self, submitter: Option<FormSubmitter<'a>>) -> Vec<FormDatum> {
let node = NodeCast::from_ref(self);
// TODO: This is an incorrect way of getting controls owned
// by the form, but good enough until html5ever lands
node.traverse_preorder().filter_map(|child| {
if child.r().get_disabled_state() {
return None;
}
if child.r().ancestors()
.any(|a| HTMLDataListElementCast::to_root(a).is_some()) {
return None;
}
match child.r().type_id() {
NodeTypeId::Element(ElementTypeId::HTMLElement(element)) => {
match element {
HTMLElementTypeId::HTMLInputElement => {
let input = HTMLInputElementCast::to_ref(child.r()).unwrap();
input.get_form_datum(submitter)
}
HTMLElementTypeId::HTMLButtonElement |
HTMLElementTypeId::HTMLSelectElement |
HTMLElementTypeId::HTMLObjectElement |
HTMLElementTypeId::HTMLTextAreaElement => {
// Unimplemented
None
}
_ => None
}
}
_ => None
}
}).collect()
// TODO: Handle `dirnames` (needs directionality support)
// https://html.spec.whatwg.org/multipage/#the-directionality
}
pub fn get_form_dataset<'a>(&self, submitter: Option<FormSubmitter<'a>>) -> Vec<FormDatum> {
fn clean_crlf(s: &str) -> DOMString {
// https://html.spec.whatwg.org/multipage/#constructing-the-form-data-set
// Step 4
@ -262,88 +298,9 @@ impl HTMLFormElement {
buf
}
let node = NodeCast::from_ref(self);
// TODO: This is an incorrect way of getting controls owned
// by the form, but good enough until html5ever lands
let data_set = node.traverse_preorder().filter_map(|child| {
if child.r().get_disabled_state() {
return None;
}
if child.r().ancestors()
.any(|a| HTMLDataListElementCast::to_root(a).is_some()) {
return None;
}
// XXXManishearth don't include it if it is a button but not the submitter
match child.r().type_id() {
NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLInputElement)) => {
let input = HTMLInputElementCast::to_ref(child.r()).unwrap();
let ty = input.Type();
let name = input.Name();
match &*ty {
"radio" | "checkbox" => {
if !input.Checked() || name.is_empty() {
return None;
}
},
"image" => (),
_ => {
if name.is_empty() {
return None;
}
}
}
let mut value = input.Value();
let is_submitter = match submitter {
Some(FormSubmitter::InputElement(s)) => {
input == s
},
_ => false
};
match &*ty {
"image" => None, // Unimplemented
"radio" | "checkbox" => {
if value.is_empty() {
value = "on".to_owned();
}
Some(FormDatum {
ty: ty,
name: name,
value: value
})
},
// Discard buttons which are not the submitter
"submit" | "button" | "reset" if !is_submitter => None,
"file" => None, // Unimplemented
_ => Some(FormDatum {
ty: ty,
name: name,
value: value
})
}
}
NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLButtonElement)) => {
// Unimplemented
None
}
NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLSelectElement)) => {
// Unimplemented
None
}
NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLObjectElement)) => {
// Unimplemented
None
}
NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLTextAreaElement)) => {
// Unimplemented
None
}
_ => None
}
});
// TODO: Handle `dirnames` (needs directionality support)
// https://html.spec.whatwg.org/multipage/#the-directionality
let mut ret: Vec<FormDatum> = data_set.collect();
let mut ret = self.get_unclean_dataset(submitter);
// https://html.spec.whatwg.org/multipage/#constructing-the-form-data-set
// Step 4
for datum in &mut ret {
match &*datum.ty {
"file" | "textarea" => (),