auto merge of #5281 : glennw/servo/mozbrowser, r=jdm

5 files changed, 291 insertions, 12 deletions

diff --git a/components/script/dom/document.rs b/components/script/dom/document.rs
index d6e5f49b433..c11c22b67b6 100644
--- a/components/script/dom/document.rs
+++ b/components/script/dom/document.rs
@@ -60,13 +60,14 @@ use dom::window::{Window, WindowHelpers, ReflowReason};
 
 use layout_interface::{HitTestResponse, MouseOverResponse};
 use msg::compositor_msg::ScriptListener;
-use msg::constellation_msg::{Key, KeyState, KeyModifiers};
+use msg::constellation_msg::Msg as ConstellationMsg;
+use msg::constellation_msg::{ConstellationChan, Key, KeyState, KeyModifiers};
 use msg::constellation_msg::{SUPER, ALT, SHIFT, CONTROL};
 use net::resource_task::ControlMsg::{SetCookiesForUrl, GetCookiesForUrl};
 use net::cookie_storage::CookieSource::NonHTTP;
 use script_task::Runnable;
 use script_traits::UntrustedNodeAddress;
-use util::namespace;
+use util::{opts, namespace};
 use util::str::{DOMString, split_html_space_chars};
 use layout_interface::{ReflowGoal, ReflowQueryType};
 
@@ -1450,7 +1451,23 @@ impl DocumentProgressHandler {
             event.r().fire(target);
         });
 
-        window_ref.reflow(ReflowGoal::ForDisplay, ReflowQueryType::NoQuery, ReflowReason::DocumentLoaded);
+        if opts::experimental_enabled() {
+            // If this is a child frame, and experimental mode is enabled,
+            // send the mozbrowserloadend event. For details, see
+            // https://developer.mozilla.org/en-US/docs/Web/Events/mozbrowserloadend
+            if let Some((containing_pipeline_id, subpage_id)) = window_ref.parent_info() {
+                let ConstellationChan(ref chan) = window_ref.constellation_chan();
+                let event = ConstellationMsg::MozBrowserEvent(containing_pipeline_id,
+                                                              subpage_id,
+                                                              "mozbrowserloadend".to_owned(),
+                                                              None);
+                chan.send(event);
+            }
+        }
+
+        window_ref.reflow(ReflowGoal::ForDisplay,
+                          ReflowQueryType::NoQuery,
+                          ReflowReason::DocumentLoaded);
     }
 }
 
diff --git a/components/script/dom/htmliframeelement.rs b/components/script/dom/htmliframeelement.rs
index 61ce736bb7e..b35fb8695f8 100644
--- a/components/script/dom/htmliframeelement.rs
+++ b/components/script/dom/htmliframeelement.rs
@@ -8,12 +8,18 @@ use dom::attr::AttrHelpers;
 use dom::bindings::codegen::Bindings::HTMLIFrameElementBinding;
 use dom::bindings::codegen::Bindings::HTMLIFrameElementBinding::HTMLIFrameElementMethods;
 use dom::bindings::codegen::Bindings::WindowBinding::WindowMethods;
-use dom::bindings::codegen::InheritTypes::{NodeCast, ElementCast};
-use dom::bindings::codegen::InheritTypes::{HTMLElementCast, HTMLIFrameElementDerived};
+use dom::bindings::codegen::InheritTypes::{NodeCast, ElementCast, EventCast};
+use dom::bindings::codegen::InheritTypes::{EventTargetCast, HTMLElementCast, HTMLIFrameElementDerived};
+use dom::bindings::conversions::ToJSValConvertible;
+use dom::bindings::error::{ErrorResult, Fallible};
+use dom::bindings::error::Error::NotSupported;
+use dom::bindings::global::GlobalRef;
 use dom::bindings::js::{JSRef, Temporary, OptionalRootable};
+use dom::customevent::CustomEvent;
 use dom::document::Document;
 use dom::element::Element;
 use dom::element::AttributeHandlers;
+use dom::event::{Event, EventBubbles, EventCancelable, EventHelpers};
 use dom::eventtarget::{EventTarget, EventTargetTypeId};
 use dom::element::ElementTypeId;
 use dom::htmlelement::{HTMLElement, HTMLElementTypeId};
@@ -23,13 +29,15 @@ use dom::virtualmethods::VirtualMethods;
 use dom::window::{Window, WindowHelpers};
 use page::IterablePage;
 
-use msg::constellation_msg::{PipelineId, SubpageId, ConstellationChan};
+use msg::constellation_msg::{PipelineId, SubpageId, ConstellationChan, NavigationDirection};
 use msg::constellation_msg::IFrameSandboxState::{IFrameSandboxed, IFrameUnsandboxed};
 use msg::constellation_msg::Msg as ConstellationMsg;
+use util::opts;
 use util::str::DOMString;
 use string_cache::Atom;
 
 use std::ascii::AsciiExt;
+use std::borrow::ToOwned;
 use std::cell::Cell;
 use url::{Url, UrlParser};
 
@@ -64,6 +72,7 @@ pub trait HTMLIFrameElementHelpers {
     fn process_the_iframe_attributes(self);
     fn generate_new_subpage_id(self) -> (SubpageId, Option<SubpageId>);
     fn navigate_child_browsing_context(self, url: Url);
+    fn dispatch_mozbrowser_event(self, event_name: String, event_detail: Option<String>);
 }
 
 impl<'a> HTMLIFrameElementHelpers for JSRef<'a, HTMLIFrameElement> {
@@ -112,6 +121,11 @@ impl<'a> HTMLIFrameElementHelpers for JSRef<'a, HTMLIFrameElement> {
                                                             new_subpage_id,
                                                             old_subpage_id,
                                                             sandboxed)).unwrap();
+
+        if opts::experimental_enabled() {
+            // https://developer.mozilla.org/en-US/docs/Web/Events/mozbrowserloadstart
+            self.dispatch_mozbrowser_event("mozbrowserloadstart".to_owned(), None);
+        }
     }
 
     fn process_the_iframe_attributes(self) {
@@ -122,6 +136,26 @@ impl<'a> HTMLIFrameElementHelpers for JSRef<'a, HTMLIFrameElement> {
 
         self.navigate_child_browsing_context(url);
     }
+
+    fn dispatch_mozbrowser_event(self, event_name: String, event_detail: Option<String>) {
+        // TODO(gw): Support mozbrowser event types that have detail which is not a string.
+        // See https://developer.mozilla.org/en-US/docs/Web/API/Using_the_Browser_API
+        // for a list of mozbrowser events.
+        assert!(opts::experimental_enabled());
+
+        if self.Mozbrowser() {
+            let window = window_from_node(self).root();
+            let cx = window.r().get_cx();
+            let custom_event = CustomEvent::new(GlobalRef::Window(window.r()),
+                                                event_name.to_owned(),
+                                                true,
+                                                true,
+                                                event_detail.to_jsval(cx)).root();
+            let target: JSRef<EventTarget> = EventTargetCast::from_ref(self);
+            let event: JSRef<Event> = EventCast::from_ref(custom_event.r());
+            event.fire(target);
+        }
+    }
 }
 
 impl HTMLIFrameElement {
@@ -199,6 +233,85 @@ impl<'a> HTMLIFrameElementMethods for JSRef<'a, HTMLIFrameElement> {
             }
         })
     }
+
+    // Experimental mozbrowser implementation is based on the webidl
+    // present in the gecko source tree, and the documentation here:
+    // https://developer.mozilla.org/en-US/docs/Web/API/Using_the_Browser_API
+
+    // TODO(gw): Use experimental codegen when it is available to avoid
+    // exposing these APIs. See https://github.com/servo/servo/issues/5264.
+
+    // https://developer.mozilla.org/en-US/docs/Web/HTML/Element/iframe#attr-mozbrowser
+    fn Mozbrowser(self) -> bool {
+        if opts::experimental_enabled() {
+            let element: JSRef<Element> = ElementCast::from_ref(self);
+            element.has_attribute(&Atom::from_slice("mozbrowser"))
+        } else {
+            false
+        }
+    }
+
+    fn SetMozbrowser(self, value: bool) -> ErrorResult {
+        if opts::experimental_enabled() {
+            let element: JSRef<Element> = ElementCast::from_ref(self);
+            element.set_bool_attribute(&Atom::from_slice("mozbrowser"), value);
+        }
+        Ok(())
+    }
+
+    // https://developer.mozilla.org/en-US/docs/Web/API/HTMLIFrameElement/goBack
+    fn GoBack(self) -> Fallible<()> {
+         if self.Mozbrowser() {
+            let node: JSRef<Node> = NodeCast::from_ref(self);
+            if node.is_in_doc() {
+                let window = window_from_node(self).root();
+                let window = window.r();
+
+                let pipeline_info = Some((self.containing_page_pipeline_id().unwrap(),
+                                          self.subpage_id().unwrap()));
+                let ConstellationChan(ref chan) = window.constellation_chan();
+                let msg = ConstellationMsg::Navigate(pipeline_info, NavigationDirection::Back);
+                chan.send(msg).unwrap();
+            }
+
+            Ok(())
+        } else {
+            debug!("this frame is not mozbrowser (or experimental_enabled is false)");
+            Err(NotSupported)
+        }
+    }
+
+    // https://developer.mozilla.org/en-US/docs/Web/API/HTMLIFrameElement/goForward
+    fn GoForward(self) -> Fallible<()> {
+         if self.Mozbrowser() {
+            let node: JSRef<Node> = NodeCast::from_ref(self);
+            if node.is_in_doc() {
+                let window = window_from_node(self).root();
+                let window = window.r();
+
+                let pipeline_info = Some((self.containing_page_pipeline_id().unwrap(),
+                                          self.subpage_id().unwrap()));
+                let ConstellationChan(ref chan) = window.constellation_chan();
+                let msg = ConstellationMsg::Navigate(pipeline_info, NavigationDirection::Forward);
+                chan.send(msg).unwrap();
+            }
+
+            Ok(())
+        } else {
+            debug!("this frame is not mozbrowser (or experimental_enabled is false)");
+            Err(NotSupported)
+        }
+    }
+
+    // https://developer.mozilla.org/en-US/docs/Web/API/HTMLIFrameElement/reload
+    fn Reload(self, _hardReload: bool) -> Fallible<()> {
+        Err(NotSupported)
+    }
+
+    // https://developer.mozilla.org/en-US/docs/Web/API/HTMLIFrameElement/stop
+    fn Stop(self) -> Fallible<()> {
+        Err(NotSupported)
+    }
 }
 
 impl<'a> VirtualMethods for JSRef<'a, HTMLIFrameElement> {
diff --git a/components/script/dom/webidls/BrowserElement.webidl b/components/script/dom/webidls/BrowserElement.webidl
new file mode 100644
index 00000000000..a0db071972e
--- /dev/null
+++ b/components/script/dom/webidls/BrowserElement.webidl
@@ -0,0 +1,138 @@
+/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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/.
+ */
+
+//callback BrowserElementNextPaintEventCallback = void ();
+
+//dictionary BrowserElementDownloadOptions {
+//  DOMString? filename;
+//};
+
+[NoInterfaceObject]
+interface BrowserElement {
+};
+
+BrowserElement implements BrowserElementCommon;
+BrowserElement implements BrowserElementPrivileged;
+
+[NoInterfaceObject]
+interface BrowserElementCommon {
+  //[Throws,
+  // Pref="dom.mozBrowserFramesEnabled",
+  // CheckPermissions="browser embed-widgets"]
+  //void setVisible(boolean visible);
+
+  //[Throws,
+  // Pref="dom.mozBrowserFramesEnabled",
+  // CheckPermissions="browser embed-widgets"]
+  //DOMRequest getVisible();
+
+  //[Throws,
+  // Pref="dom.mozBrowserFramesEnabled",
+  // CheckPermissions="browser embed-widgets"]
+  //void addNextPaintListener(BrowserElementNextPaintEventCallback listener);
+
+  //[Throws,
+  // Pref="dom.mozBrowserFramesEnabled",
+  // CheckPermissions="browser embed-widgets"]
+  //void removeNextPaintListener(BrowserElementNextPaintEventCallback listener);
+};
+
+[NoInterfaceObject]
+interface BrowserElementPrivileged {
+  //[Throws,
+  // Pref="dom.mozBrowserFramesEnabled",
+  // CheckPermissions="browser"]
+  //void sendMouseEvent(DOMString type,
+  //                    unsigned long x,
+  //                    unsigned long y,
+  //                    unsigned long button,
+  //                    unsigned long clickCount,
+  //                    unsigned long modifiers);
+
+  //[Throws,
+  // Pref="dom.mozBrowserFramesEnabled",
+  // Func="TouchEvent::PrefEnabled",
+  // CheckPermissions="browser"]
+  //void sendTouchEvent(DOMString type,
+  //                    sequence<unsigned long> identifiers,
+  //                    sequence<long> x,
+  //                    sequence<long> y,
+  //                    sequence<unsigned long> rx,
+  //                    sequence<unsigned long> ry,
+  //                    sequence<float> rotationAngles,
+  //                    sequence<float> forces,
+  //                    unsigned long count,
+  //                    unsigned long modifiers);
+
+  [Throws,
+   Pref="dom.mozBrowserFramesEnabled",
+   CheckPermissions="browser"]
+  void goBack();
+
+  [Throws,
+   Pref="dom.mozBrowserFramesEnabled",
+   CheckPermissions="browser"]
+  void goForward();
+
+  [Throws,
+   Pref="dom.mozBrowserFramesEnabled",
+   CheckPermissions="browser"]
+  void reload(optional boolean hardReload = false);
+
+  [Throws,
+   Pref="dom.mozBrowserFramesEnabled",
+   CheckPermissions="browser"]
+  void stop();
+
+  //[Throws,
+  // Pref="dom.mozBrowserFramesEnabled",
+  // CheckPermissions="browser"]
+  //DOMRequest download(DOMString url,
+  //                    optional BrowserElementDownloadOptions options);
+
+  //[Throws,
+  // Pref="dom.mozBrowserFramesEnabled",
+  // CheckPermissions="browser"]
+  //DOMRequest purgeHistory();
+
+  //[Throws,
+  // Pref="dom.mozBrowserFramesEnabled",
+  // CheckPermissions="browser"]
+  //DOMRequest getScreenshot([EnforceRange] unsigned long width,
+  //                         [EnforceRange] unsigned long height,
+  //                         optional DOMString mimeType="");
+
+  //[Throws,
+  // Pref="dom.mozBrowserFramesEnabled",
+  // CheckPermissions="browser"]
+  //void zoom(float zoom);
+
+  //[Throws,
+  // Pref="dom.mozBrowserFramesEnabled",
+  // CheckPermissions="browser"]
+  //DOMRequest getCanGoBack();
+
+  //[Throws,
+  // Pref="dom.mozBrowserFramesEnabled",
+  // CheckPermissions="browser"]
+  //DOMRequest getCanGoForward();
+
+  //[Throws,
+  // Pref="dom.mozBrowserFramesEnabled",
+  // CheckPermissions="browser"]
+  //DOMRequest getContentDimensions();
+
+  //[Throws,
+  // Pref="dom.mozBrowserFramesEnabled",
+  // CheckPermissions="browser"]
+  //DOMRequest setInputMethodActive(boolean isActive);
+
+  // Additional |nfc-manager| permission is required for setNFCFocus API
+  //[Throws,
+  // Pref="dom.mozBrowserFramesEnabled",
+  // CheckPermissions="browser"]
+  //void setNFCFocus(boolean isFocus);
+};
diff --git a/components/script/dom/webidls/HTMLIFrameElement.webidl b/components/script/dom/webidls/HTMLIFrameElement.webidl
index 7768065545c..558cdfd8030 100644
--- a/components/script/dom/webidls/HTMLIFrameElement.webidl
+++ b/components/script/dom/webidls/HTMLIFrameElement.webidl
@@ -31,3 +31,10 @@ partial interface HTMLIFrameElement {
   //[TreatNullAs=EmptyString] attribute DOMString marginHeight;
   //[TreatNullAs=EmptyString] attribute DOMString marginWidth;
 };
+
+partial interface HTMLIFrameElement {
+  [ChromeOnly,SetterThrows]
+           attribute boolean mozbrowser;
+};
+
+HTMLIFrameElement implements BrowserElement;
diff --git a/components/script/dom/window.rs b/components/script/dom/window.rs
index 47b5c1c3149..038ec358f73 100644
--- a/components/script/dom/window.rs
+++ b/components/script/dom/window.rs
@@ -114,7 +114,7 @@ pub struct Window {
     id: PipelineId,
 
     /// Subpage id associated with this page, if any.
-    subpage_id: Option<SubpageId>,
+    parent_info: Option<(PipelineId, SubpageId)>,
 
     /// Unique id for last reflow request; used for confirming completion reply.
     last_reflow_id: Cell<uint>,
@@ -164,11 +164,15 @@ impl Window {
     }
 
     pub fn pipeline(&self) -> PipelineId {
-        self.id.clone()
+        self.id
     }
 
     pub fn subpage(&self) -> Option<SubpageId> {
-        self.subpage_id.clone()
+        self.parent_info.map(|p| p.1)
+    }
+
+    pub fn parent_info(&self) -> Option<(PipelineId, SubpageId)> {
+        self.parent_info
     }
 
     pub fn control_chan<'a>(&'a self) -> &'a ScriptControlChan {
@@ -549,7 +553,7 @@ impl<'a> WindowHelpers for JSRef<'a, Window> {
         let reflow = box Reflow {
             document_root: root.to_trusted_node_address(),
             url: self.get_url(),
-            iframe: self.subpage_id.is_some(),
+            iframe: self.parent_info.is_some(),
             goal: goal,
             window_size: window_size,
             script_chan: self.control_chan.clone(),
@@ -768,7 +772,7 @@ impl Window {
                constellation_chan: ConstellationChan,
                layout_chan: LayoutChan,
                id: PipelineId,
-               subpage_id: Option<SubpageId>,
+               parent_info: Option<(PipelineId, SubpageId)>,
                window_size: Option<WindowSizeData>)
                -> Temporary<Window> {
         let layout_rpc: Box<LayoutRPC> = {
@@ -797,7 +801,7 @@ impl Window {
             local_storage: Default::default(),
             timers: TimerManager::new(),
             id: id,
-            subpage_id: subpage_id,
+            parent_info: parent_info,
             dom_static: GlobalStaticData::new(),
             js_context: DOMRefCell::new(Some(js_context.clone())),
             resource_task: resource_task,