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Diffstat (limited to 'src/components/script/dom/virtualmethods.rs')
| -rw-r--r-- | src/components/script/dom/virtualmethods.rs | 219 |
1 files changed, 0 insertions, 219 deletions
diff --git a/src/components/script/dom/virtualmethods.rs b/src/components/script/dom/virtualmethods.rs deleted file mode 100644 index 9ce38c4908b..00000000000 --- a/src/components/script/dom/virtualmethods.rs +++ /dev/null @@ -1,219 +0,0 @@ -/* This Source Code Form is subject to the terms of the Mozilla Public - * License, v. 2.0. If a copy of the MPL was not distributed with this - * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ - -use dom::attr::{AttrValue, StringAttrValue}; -use dom::bindings::codegen::InheritTypes::ElementCast; -use dom::bindings::codegen::InheritTypes::HTMLAnchorElementCast; -use dom::bindings::codegen::InheritTypes::HTMLAreaElementCast; -use dom::bindings::codegen::InheritTypes::HTMLBodyElementCast; -use dom::bindings::codegen::InheritTypes::HTMLButtonElementCast; -use dom::bindings::codegen::InheritTypes::HTMLCanvasElementCast; -use dom::bindings::codegen::InheritTypes::HTMLElementCast; -use dom::bindings::codegen::InheritTypes::HTMLFieldSetElementCast; -use dom::bindings::codegen::InheritTypes::HTMLIFrameElementCast; -use dom::bindings::codegen::InheritTypes::HTMLImageElementCast; -use dom::bindings::codegen::InheritTypes::HTMLInputElementCast; -use dom::bindings::codegen::InheritTypes::HTMLLinkElementCast; -use dom::bindings::codegen::InheritTypes::HTMLObjectElementCast; -use dom::bindings::codegen::InheritTypes::HTMLOptGroupElementCast; -use dom::bindings::codegen::InheritTypes::HTMLOptionElementCast; -use dom::bindings::codegen::InheritTypes::HTMLSelectElementCast; -use dom::bindings::codegen::InheritTypes::HTMLStyleElementCast; -use dom::bindings::codegen::InheritTypes::HTMLTextAreaElementCast; -use dom::bindings::js::JSRef; -use dom::element::Element; -use dom::element::ElementTypeId; -use dom::element::HTMLAnchorElementTypeId; -use dom::element::HTMLAreaElementTypeId; -use dom::element::HTMLBodyElementTypeId; -use dom::element::HTMLButtonElementTypeId; -use dom::element::HTMLCanvasElementTypeId; -use dom::element::HTMLFieldSetElementTypeId; -use dom::element::HTMLIFrameElementTypeId; -use dom::element::HTMLImageElementTypeId; -use dom::element::HTMLInputElementTypeId; -use dom::element::HTMLLinkElementTypeId; -use dom::element::HTMLObjectElementTypeId; -use dom::element::HTMLOptGroupElementTypeId; -use dom::element::HTMLOptionElementTypeId; -use dom::element::HTMLSelectElementTypeId; -use dom::element::HTMLStyleElementTypeId; -use dom::element::HTMLTextAreaElementTypeId; -use dom::event::Event; -use dom::htmlanchorelement::HTMLAnchorElement; -use dom::htmlareaelement::HTMLAreaElement; -use dom::htmlbodyelement::HTMLBodyElement; -use dom::htmlbuttonelement::HTMLButtonElement; -use dom::htmlcanvaselement::HTMLCanvasElement; -use dom::htmlelement::HTMLElement; -use dom::htmlfieldsetelement::HTMLFieldSetElement; -use dom::htmliframeelement::HTMLIFrameElement; -use dom::htmlimageelement::HTMLImageElement; -use dom::htmlinputelement::HTMLInputElement; -use dom::htmllinkelement::HTMLLinkElement; -use dom::htmlobjectelement::HTMLObjectElement; -use dom::htmloptgroupelement::HTMLOptGroupElement; -use dom::htmloptionelement::HTMLOptionElement; -use dom::htmlselectelement::HTMLSelectElement; -use dom::htmlstyleelement::HTMLStyleElement; -use dom::htmltextareaelement::HTMLTextAreaElement; -use dom::node::{Node, NodeHelpers, ElementNodeTypeId}; - -use servo_util::atom::Atom; -use servo_util::str::DOMString; - -/// Trait to allow DOM nodes to opt-in to overriding (or adding to) common -/// behaviours. Replicates the effect of C++ virtual methods. -pub trait VirtualMethods { - /// Returns self as the superclass of the implementation for this trait, - /// if any. - fn super_type<'a>(&'a self) -> Option<&'a VirtualMethods>; - - /// Called when changing or adding attributes, after the attribute's value - /// has been updated. - fn after_set_attr(&self, name: &Atom, value: DOMString) { - match self.super_type() { - Some(ref s) => s.after_set_attr(name, value), - _ => (), - } - } - - /// Called when changing or removing attributes, before any modification - /// has taken place. - fn before_remove_attr(&self, name: &Atom, value: DOMString) { - match self.super_type() { - Some(ref s) => s.before_remove_attr(name, value), - _ => (), - } - } - - /// Returns the right AttrValue variant for the attribute with name `name` - /// on this element. - fn parse_plain_attribute(&self, name: &str, value: DOMString) -> AttrValue { - match self.super_type() { - Some(ref s) => s.parse_plain_attribute(name, value), - _ => StringAttrValue(value), - } - } - - /// Called when a Node is appended to a tree, where 'tree_in_doc' indicates - /// whether the tree is part of a Document. - fn bind_to_tree(&self, tree_in_doc: bool) { - match self.super_type() { - Some(ref s) => s.bind_to_tree(tree_in_doc), - _ => (), - } - } - - /// Called when a Node is removed from a tree, where 'tree_in_doc' - /// indicates whether the tree is part of a Document. - fn unbind_from_tree(&self, tree_in_doc: bool) { - match self.super_type() { - Some(ref s) => s.unbind_from_tree(tree_in_doc), - _ => (), - } - } - - /// Called on the parent when a node is added to its child list. - fn child_inserted(&self, child: &JSRef<Node>) { - match self.super_type() { - Some(ref s) => s.child_inserted(child), - _ => (), - } - } - - /// Called during event dispatch after the bubbling phase completes. - fn handle_event(&self, event: &JSRef<Event>) { - match self.super_type() { - Some(s) => { - s.handle_event(event); - } - _ => (), - } - } -} - -/// Obtain a VirtualMethods instance for a given Node-derived object. Any -/// method call on the trait object will invoke the corresponding method on the -/// concrete type, propagating up the parent hierarchy unless otherwise -/// interrupted. -pub fn vtable_for<'a>(node: &'a JSRef<Node>) -> &'a VirtualMethods { - match node.type_id() { - ElementNodeTypeId(HTMLAnchorElementTypeId) => { - let element: &JSRef<HTMLAnchorElement> = HTMLAnchorElementCast::to_ref(node).unwrap(); - element as &VirtualMethods - } - ElementNodeTypeId(HTMLAreaElementTypeId) => { - let element: &JSRef<HTMLAreaElement> = HTMLAreaElementCast::to_ref(node).unwrap(); - element as &VirtualMethods - } - ElementNodeTypeId(HTMLBodyElementTypeId) => { - let element: &JSRef<HTMLBodyElement> = HTMLBodyElementCast::to_ref(node).unwrap(); - element as &VirtualMethods - } - ElementNodeTypeId(HTMLButtonElementTypeId) => { - let element: &JSRef<HTMLButtonElement> = HTMLButtonElementCast::to_ref(node).unwrap(); - element as &VirtualMethods - } - ElementNodeTypeId(HTMLCanvasElementTypeId) => { - let element: &JSRef<HTMLCanvasElement> = HTMLCanvasElementCast::to_ref(node).unwrap(); - element as &VirtualMethods - } - ElementNodeTypeId(HTMLFieldSetElementTypeId) => { - let element: &JSRef<HTMLFieldSetElement> = HTMLFieldSetElementCast::to_ref(node).unwrap(); - element as &VirtualMethods - } - ElementNodeTypeId(HTMLImageElementTypeId) => { - let element: &JSRef<HTMLImageElement> = HTMLImageElementCast::to_ref(node).unwrap(); - element as &VirtualMethods - } - ElementNodeTypeId(HTMLIFrameElementTypeId) => { - let element: &JSRef<HTMLIFrameElement> = HTMLIFrameElementCast::to_ref(node).unwrap(); - element as &VirtualMethods - } - ElementNodeTypeId(HTMLInputElementTypeId) => { - let element: &JSRef<HTMLInputElement> = HTMLInputElementCast::to_ref(node).unwrap(); - element as &VirtualMethods - } - ElementNodeTypeId(HTMLLinkElementTypeId) => { - let element: &JSRef<HTMLLinkElement> = HTMLLinkElementCast::to_ref(node).unwrap(); - element as &VirtualMethods - } - ElementNodeTypeId(HTMLObjectElementTypeId) => { - let element: &JSRef<HTMLObjectElement> = HTMLObjectElementCast::to_ref(node).unwrap(); - element as &VirtualMethods - } - ElementNodeTypeId(HTMLOptGroupElementTypeId) => { - let element: &JSRef<HTMLOptGroupElement> = HTMLOptGroupElementCast::to_ref(node).unwrap(); - element as &VirtualMethods - } - ElementNodeTypeId(HTMLOptionElementTypeId) => { - let element: &JSRef<HTMLOptionElement> = HTMLOptionElementCast::to_ref(node).unwrap(); - element as &VirtualMethods - } - ElementNodeTypeId(HTMLSelectElementTypeId) => { - let element: &JSRef<HTMLSelectElement> = HTMLSelectElementCast::to_ref(node).unwrap(); - element as &VirtualMethods - } - ElementNodeTypeId(HTMLStyleElementTypeId) => { - let element: &JSRef<HTMLStyleElement> = HTMLStyleElementCast::to_ref(node).unwrap(); - element as &VirtualMethods - } - ElementNodeTypeId(HTMLTextAreaElementTypeId) => { - let element: &JSRef<HTMLTextAreaElement> = HTMLTextAreaElementCast::to_ref(node).unwrap(); - element as &VirtualMethods - } - ElementNodeTypeId(ElementTypeId) => { - let element: &JSRef<Element> = ElementCast::to_ref(node).unwrap(); - element as &VirtualMethods - } - ElementNodeTypeId(_) => { - let element: &JSRef<HTMLElement> = HTMLElementCast::to_ref(node).unwrap(); - element as &VirtualMethods - } - _ => { - node as &VirtualMethods - } - } -} |