Implement HTMLDetailsElement. Fixes #9216

components/script/dom/htmldetailselement.rs

@@ -0,0 +1,107 @@
+/* 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::Attr;
+use dom::bindings::codegen::Bindings::HTMLDetailsElementBinding;
+use dom::bindings::codegen::Bindings::HTMLDetailsElementBinding::HTMLDetailsElementMethods;
+use dom::bindings::global::GlobalRef;
+use dom::bindings::inheritance::Castable;
+use dom::bindings::js::Root;
+use dom::bindings::refcounted::Trusted;
+use dom::document::Document;
+use dom::element::AttributeMutation;
+use dom::eventtarget::EventTarget;
+use dom::htmlelement::HTMLElement;
+use dom::node::{Node, window_from_node};
+use dom::virtualmethods::VirtualMethods;
+use script_thread::ScriptThreadEventCategory::DomEvent;
+use script_thread::{CommonScriptMsg, Runnable};
+use std::cell::Cell;
+use string_cache::Atom;
+use util::str::DOMString;
+
+#[dom_struct]
+pub struct HTMLDetailsElement {
+    htmlelement: HTMLElement,
+    toggle_counter: Cell<u32>
+}
+
+impl HTMLDetailsElement {
+    fn new_inherited(localName: Atom,
+                     prefix: Option<DOMString>,
+                     document: &Document) -> HTMLDetailsElement {
+        HTMLDetailsElement {
+            htmlelement:
+                HTMLElement::new_inherited(localName, prefix, document),
+            toggle_counter: Cell::new(0)
+        }
+    }
+
+    #[allow(unrooted_must_root)]
+    pub fn new(localName: Atom,
+               prefix: Option<DOMString>,
+               document: &Document) -> Root<HTMLDetailsElement> {
+        let element = HTMLDetailsElement::new_inherited(localName, prefix, document);
+        Node::reflect_node(box element, document, HTMLDetailsElementBinding::Wrap)
+    }
+
+    pub fn check_toggle_count(&self, number: u32) -> bool {
+        number == self.toggle_counter.get()
+    }
+}
+
+impl HTMLDetailsElementMethods for HTMLDetailsElement {
+    // https://html.spec.whatwg.org/multipage/#dom-details-open
+    make_bool_getter!(Open, "open");
+
+    // https://html.spec.whatwg.org/multipage/#dom-details-open
+    make_bool_setter!(SetOpen, "open");
+}
+
+impl VirtualMethods for HTMLDetailsElement {
+    fn super_type(&self) -> Option<&VirtualMethods> {
+        Some(self.upcast::<HTMLElement>() as &VirtualMethods)
+    }
+
+    fn attribute_mutated(&self, attr: &Attr, mutation: AttributeMutation) {
+        self.super_type().unwrap().attribute_mutated(attr, mutation);
+
+        if attr.local_name() == &atom!("open") {
+            let counter = self.toggle_counter.get() + 1;
+            self.toggle_counter.set(counter);
+            ToggleEventRunnable::send(&self, counter);
+        }
+    }
+}
+
+pub struct ToggleEventRunnable {
+    element: Trusted<HTMLDetailsElement>,
+    toggle_number: u32
+}
+
+impl ToggleEventRunnable {
+    pub fn send(node: &HTMLDetailsElement, toggle_number: u32) {
+        let window = window_from_node(node);
+        let window = window.r();
+        let chan = window.dom_manipulation_thread_source();
+        let handler = Trusted::new(node, chan.clone());
+        let dispatcher = ToggleEventRunnable {
+            element: handler,
+            toggle_number: toggle_number,
+        };
+        let _ = chan.send(CommonScriptMsg::RunnableMsg(DomEvent, box dispatcher));
+    }
+}
+
+impl Runnable for ToggleEventRunnable {
+    fn handler(self: Box<ToggleEventRunnable>) {
+        let target = self.element.root();
+        let window = window_from_node(target.upcast::<Node>());
+
+        if target.check_toggle_count(self.toggle_number) {
+            target.upcast::<EventTarget>()
+                  .fire_simple_event("toggle", GlobalRef::Window(window.r()));
+        }
+    }
+}