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auto merge of #2210 : saneyuki/servo/query, r=jdm

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- see #356
- To decrease the conversion code, `JS<Node>` -> `Node`, I added API methods to `NodeHelpers`.
- I added APIs to `Page` not `Document` because I had thought that their APIs returns the hitted nodes address in the "page".
This commit is contained in:
bors-servo 2014-04-24 09:52:11 -04:00
commit 6d89e67194
4 changed files with 87 additions and 55 deletions
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88
src/components/script/script_task.rs
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@ -22,11 +22,11 @@ use html::hubbub_html_parser::HtmlParserResult;
use html::hubbub_html_parser::{HtmlDiscoveredStyle, HtmlDiscoveredIFrame, HtmlDiscoveredScript};
use html::hubbub_html_parser;
use layout_interface::{AddStylesheetMsg, DocumentDamage};
use layout_interface::{ContentBoxQuery, ContentBoxResponse};
use layout_interface::{DocumentDamageLevel, HitTestQuery, HitTestResponse, LayoutQuery, MouseOverQuery, MouseOverResponse};
use layout_interface::{LayoutChan, MatchSelectorsDocumentDamage, QueryMsg};
use layout_interface::{Reflow, ReflowDocumentDamage, ReflowForDisplay, ReflowGoal, ReflowMsg};
use layout_interface::ContentChangedDocumentDamage;
use layout_interface::UntrustedNodeAddress;
use layout_interface;
use geom::point::Point2D;
@ -436,6 +436,47 @@ impl Page {
js_context: Untraceable::new(js_context),
});
}
pub fn hit_test(&self, point: &Point2D<f32>) -> Option<UntrustedNodeAddress> {
let frame = self.frame();
let document = frame.get_ref().document.clone();
let root = document.get().GetDocumentElement();
if root.is_none() {
return None;
}
let root: JS<Node> = NodeCast::from(&root.unwrap());
let (chan, port) = channel();
let address = match self.query_layout(HitTestQuery(root.to_trusted_node_address(), *point, chan), port) {
Ok(HitTestResponse(node_address)) => {
Some(node_address)
}
Err(()) => {
debug!("layout query error");
None
}
};
address
}
pub fn get_nodes_under_mouse(&self, point: &Point2D<f32>) -> Option<~[UntrustedNodeAddress]> {
let frame = self.frame();
let document = frame.get_ref().document.clone();
let root = document.get().GetDocumentElement();
if root.is_none() {
return None;
}
let root: JS<Node> = NodeCast::from(&root.unwrap());
let (chan, port) = channel();
let address = match self.query_layout(MouseOverQuery(root.to_trusted_node_address(), *point, chan), port) {
Ok(MouseOverResponse(node_address)) => {
Some(node_address)
}
Err(()) => {
None
}
};
address
}
}
/// Information for one frame in the browsing context.
@ -955,11 +996,9 @@ impl ScriptTask {
chan.send(LoadCompleteMsg(page.id, url));
}
fn scroll_fragment_point(&self, pipeline_id: PipelineId, page: &Page, node: JS<Element>) {
let (chan, port) = channel();
fn scroll_fragment_point(&self, pipeline_id: PipelineId, node: JS<Element>) {
let node: JS<Node> = NodeCast::from(&node);
let ContentBoxResponse(rect) =
page.query_layout(ContentBoxQuery(node.to_trusted_node_address(), chan), port);
let rect = node.get_bounding_content_box();
let point = Point2D(to_frac_px(rect.origin.x).to_f32().unwrap(),
to_frac_px(rect.origin.y).to_f32().unwrap());
// FIXME(#2003, pcwalton): This is pretty bogus when multiple layers are involved.
@ -997,7 +1036,7 @@ impl ScriptTask {
let mut fragment_node = page.fragment_node.deref().borrow_mut();
match fragment_node.take() {
Some(node) => self.scroll_fragment_point(pipeline_id, page, node),
Some(node) => self.scroll_fragment_point(pipeline_id, node),
None => {}
}
@ -1031,17 +1070,8 @@ impl ScriptTask {
ClickEvent(_button, point) => {
debug!("ClickEvent: clicked at {:?}", point);
let frame = page.frame();
let document = frame.get_ref().document.clone();
let root = document.get().GetDocumentElement();
if root.is_none() {
return;
}
let (chan, port) = channel();
let root: JS<Node> = NodeCast::from(&root.unwrap());
match page.query_layout(HitTestQuery(root.to_trusted_node_address(), point, chan), port) {
Ok(HitTestResponse(node_address)) => {
match page.hit_test(&point) {
Some(node_address) => {
debug!("node address is {:?}", node_address);
let mut node: JS<Node> =
NodeHelpers::from_untrusted_node_address(self.js_runtime.deref().ptr,
@ -1063,23 +1093,16 @@ impl ScriptTask {
self.load_url_from_element(page, &element)
}
}
},
Err(()) => debug!("layout query error"),
}
None => {}
}
}
MouseDownEvent(..) => {}
MouseUpEvent(..) => {}
MouseMoveEvent(point) => {
let frame = page.frame();
let document = frame.get_ref().document.clone();
let root = document.get().GetDocumentElement();
if root.is_none() {
return;
}
let root: JS<Node> = NodeCast::from(&root.unwrap());
let (chan, port) = channel();
match page.query_layout(MouseOverQuery(root.to_trusted_node_address(), point, chan), port) {
Ok(MouseOverResponse(node_address)) => {
match page.get_nodes_under_mouse(&point) {
Some(node_address) => {
let mut target_list: ~[JS<Node>] = ~[];
let mut target_compare = false;
@ -1137,8 +1160,9 @@ impl ScriptTask {
}
*mouse_over_targets = Some(target_list);
}
},
Err(()) => {},
}
None => {}
}
}
}
@ -1156,7 +1180,7 @@ impl ScriptTask {
if click_frag {
match page.find_fragment_node(url.fragment.unwrap()) {
Some(node) => self.scroll_fragment_point(page.id, page, node),
Some(node) => self.scroll_fragment_point(page.id, node),
None => {}
}
} else {