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HTMLTextArea: Implements a dirty value flag

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This commit is contained in:
Matthew Rasmus 2014-11-30 15:37:27 -08:00
parent ed37b53a62
commit f5bd8f830a
1 changed files with 24 additions and 10 deletions
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34
components/script/dom/htmltextareaelement.rs
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@ -27,10 +27,15 @@ use dom::virtualmethods::VirtualMethods;
use servo_util::str::DOMString;
use string_cache::Atom;
use std::cell::Cell;
#[dom_struct]
pub struct HTMLTextAreaElement {
htmlelement: HTMLElement,
textinput: DOMRefCell<TextInput>,
// https://html.spec.whatwg.org/multipage/forms.html#concept-textarea-dirty
value_changed: Cell<bool>,
}
impl HTMLTextAreaElementDerived for EventTarget {
@ -55,6 +60,7 @@ impl HTMLTextAreaElement {
HTMLTextAreaElement {
htmlelement: HTMLElement::new_inherited(HTMLTextAreaElementTypeId, localName, prefix, document),
textinput: DOMRefCell::new(TextInput::new(Multiple, "".to_string())),
value_changed: Cell::new(false),
}
}
@ -125,7 +131,13 @@ impl<'a> HTMLTextAreaElementMethods for JSRef<'a, HTMLTextAreaElement> {
// https://html.spec.whatwg.org/multipage/forms.html#dom-textarea-defaultvalue
fn SetDefaultValue(self, value: DOMString) {
let node: JSRef<Node> = NodeCast::from_ref(self);
node.SetTextContent(Some(value))
node.SetTextContent(Some(value));
// if the element's dirty value flag is false, then the element's
// raw value must be set to the value of the element's textContent IDL attribute
if !self.value_changed.get() {
self.SetValue(node.GetTextContent().unwrap());
}
}
// https://html.spec.whatwg.org/multipage/forms.html#dom-textarea-value
@ -136,6 +148,7 @@ impl<'a> HTMLTextAreaElementMethods for JSRef<'a, HTMLTextAreaElement> {
// https://html.spec.whatwg.org/multipage/forms.html#dom-textarea-value
fn SetValue(self, value: DOMString) {
self.textinput.borrow_mut().set_content(value);
self.force_relayout();
}
}
@ -242,16 +255,17 @@ impl<'a> VirtualMethods for JSRef<'a, HTMLTextAreaElement> {
let doc = document_from_node(*self).root();
doc.request_focus(ElementCast::from_ref(*self));
} else if "keydown" == event.Type().as_slice() && !event.DefaultPrevented() {
let keyevent: Option<JSRef<KeyboardEvent>> = KeyboardEventCast::to_ref(event);
keyevent.map(|event| {
match self.textinput.borrow_mut().handle_keydown(event) {
TriggerDefaultAction => (),
DispatchInput => {
self.force_relayout();
}
Nothing => (),
let keyevent: Option<JSRef<KeyboardEvent>> = KeyboardEventCast::to_ref(event);
keyevent.map(|event| {
match self.textinput.borrow_mut().handle_keydown(event) {
TriggerDefaultAction => (),
DispatchInput => {
self.force_relayout();
self.value_changed.set(true);
}
});
Nothing => (),
}
});
}
}
}