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auto merge of #864 : jdm/servo/displaylist, r=metajack

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bors-servo 2013-09-04 08:21:58 -07:00
commit b5dcbd287d
6 changed files with 74 additions and 43 deletions
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60
src/components/main/layout/layout_task.rs
View file

@ -372,33 +372,42 @@ impl LayoutTask {
transmute(node)
};
let response = do node.read_layout_data |layout_data| {
fn box_for_node(node: AbstractNode<LayoutView>) -> Option<Rect<Au>> {
do node.read_layout_data |layout_data| {
match (layout_data.boxes.display_list.clone(), layout_data.boxes.range) {
(Some(display_list), Some(range)) => {
let mut rect: Option<Rect<Au>> = None;
for i in range.eachi() {
rect = match rect {
Some(acc) => Some(acc.union(&display_list.get().list[i].bounds())),
Some(acc) => {
Some(acc.union(&display_list.get().list[i].bounds()))
}
None => Some(display_list.get().list[i].bounds())
}
}
match rect {
None => {
error!("no boxes for node");
Err(())
}
Some(rect) => Ok(ContentBoxResponse(rect))
}
rect
}
_ => {
error!("no display list present");
Err(())
let mut acc: Option<Rect<Au>> = None;
for child in node.children() {
let rect = box_for_node(child);
match rect {
None => loop,
Some(rect) => acc = match acc {
Some(acc) => Some(acc.union(&rect)),
None => Some(rect)
}
}
}
acc
}
}
}
}
};
reply_chan.send(response)
let rect = box_for_node(node).unwrap_or_default(Rect(Point2D(Au(0), Au(0)),
Size2D(Au(0), Au(0))));
reply_chan.send(ContentBoxResponse(rect))
}
ContentBoxesQuery(node, reply_chan) => {
// FIXME: Isolate this transmutation into a single "bridge" module.
@ -406,21 +415,30 @@ impl LayoutTask {
transmute(node)
};
let response = do node.read_layout_data |layout_data| {
fn boxes_for_node(node: AbstractNode<LayoutView>,
boxes: ~[Rect<Au>]) -> ~[Rect<Au>] {
let boxes = Cell::new(boxes);
do node.read_layout_data |layout_data| {
let mut boxes = boxes.take();
match (layout_data.boxes.display_list.clone(), layout_data.boxes.range) {
(Some(display_list), Some(range)) => {
let mut boxes = ~[];
for i in range.eachi() {
boxes.push(display_list.get().list[i].bounds());
}
Ok(ContentBoxesResponse(boxes))
}
_ => Err(()),
_ => {
for child in node.children() {
boxes = boxes_for_node(child, boxes);
}
}
}
boxes
}
}
};
reply_chan.send(response)
let mut boxes = ~[];
boxes = boxes_for_node(node, boxes);
reply_chan.send(ContentBoxesResponse(boxes))
}
HitTestQuery(_, point, reply_chan) => {
let response = {

11
src/components/script/dom/element.rs
View file

@ -265,7 +265,7 @@ impl Element {
let page = win.page;
let (port, chan) = comm::stream();
match unsafe {(*page).query_layout(ContentBoxesQuery(node, chan), port)} {
Ok(ContentBoxesResponse(rects)) => {
ContentBoxesResponse(rects) => {
let cx = unsafe {(*page).js_info.get_ref().js_compartment.cx.ptr};
let cache = win.get_wrappercache();
let scope = cache.get_wrapper();
@ -280,10 +280,6 @@ impl Element {
};
Some((rects, cx, scope))
},
Err(()) => {
debug!("layout query error");
None
}
}
}
None => {
@ -311,7 +307,7 @@ impl Element {
assert!(node.is_element());
let (port, chan) = comm::stream();
match unsafe{(*page).query_layout(ContentBoxQuery(node, chan), port)} {
Ok(ContentBoxResponse(rect)) => {
ContentBoxResponse(rect) => {
let cx = unsafe {(*page).js_info.get_ref().js_compartment.cx.ptr};
let cache = win.get_wrappercache();
let scope = cache.get_wrapper();
@ -322,8 +318,7 @@ impl Element {
(rect.origin.x + rect.size.width).to_f32(),
cx,
scope)
},
Err(()) => fail!("error querying layout")
}
}
}
None => fail!("no window")

4
src/components/script/layout_interface.rs
View file

@ -38,9 +38,9 @@ pub enum Msg {
/// Synchronous messages that script can send to layout.
pub enum LayoutQuery {
/// Requests the dimensions of the content box, as in the `getBoundingClientRect()` call.
ContentBoxQuery(AbstractNode<ScriptView>, Chan<Result<ContentBoxResponse, ()>>),
ContentBoxQuery(AbstractNode<ScriptView>, Chan<ContentBoxResponse>),
/// Requests the dimensions of all the content boxes, as in the `getClientRects()` call.
ContentBoxesQuery(AbstractNode<ScriptView>, Chan<Result<ContentBoxesResponse, ()>>),
ContentBoxesQuery(AbstractNode<ScriptView>, Chan<ContentBoxesResponse>),
/// Requests the node containing the point of interest
HitTestQuery(AbstractNode<ScriptView>, Point2D<f32>, Chan<Result<HitTestResponse, ()>>),
}

4
src/components/script/script_task.rs
View file

@ -231,8 +231,8 @@ impl Page {
/// Sends the given query to layout.
pub fn query_layout<T: Send>(&mut self,
query: LayoutQuery,
response_port: Port<Result<T, ()>>)
-> Result<T,()> {
response_port: Port<T>)
-> T {
self.join_layout();
self.layout_chan.send(QueryMsg(query));
response_port.recv()

6
src/test/html/content/test_empty_clientrect.html Normal file
View file

@ -0,0 +1,6 @@
<html>
<head>
<script src="harness.js"></script>
<script src="test_empty_clientrect.js"></script>
</head>
</html>

12
src/test/html/content/test_empty_clientrect.js Normal file
View file

@ -0,0 +1,12 @@
var rect = window.document.head.getBoundingClientRect();
var rects = window.document.head.getClientRects();
is(rect instanceof ClientRect, true);
is(rect.top, 0);
is(rect.bottom, 0);
is(rect.left, 0);
is(rect.right, 0);
is(rect.width, 0);
is(rect.height, 0);
is(rects instanceof ClientRectList, true);
is(rects.length, 0);
finish();