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Add a flag to dump the computed style values

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I used this to trace #11818 to a style bug, rather than a layout bug.
This commit is contained in:
Michael Howell 2016-08-12 11:11:23 -07:00
parent a22913569c
commit 748a573917
4 changed files with 48 additions and 0 deletions
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32
components/script/layout_wrapper.rs
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@ -140,6 +140,11 @@ impl<'ln> TNode for ServoLayoutNode<'ln> {
self.dump_indent(0);
}
fn dump_style(self) {
println!("\nDOM with computed styles:");
self.dump_style_indent(0);
}
fn opaque(&self) -> OpaqueNode {
unsafe { self.get_jsmanaged().opaque() }
}
@ -320,11 +325,38 @@ impl<'ln> ServoLayoutNode<'ln> {
}
}
fn dump_style_indent(self, indent: u32) {
if self.is_element() {
let mut s = String::new();
for _ in 0..indent {
s.push_str(" ");
}
s.push_str(&self.debug_style_str());
println!("{}", s);
}
for kid in self.children() {
kid.dump_style_indent(indent + 1);
}
}
fn debug_str(self) -> String {
format!("{:?}: changed={} dirty={} dirty_descendants={}",
self.script_type_id(), self.has_changed(), self.is_dirty(), self.has_dirty_descendants())
}
fn debug_style_str(self) -> String {
if let Some(data) = self.borrow_data() {
if let Some(data) = data.style.as_ref() {
format!("{:?}: {:?}", self.script_type_id(), data)
} else {
format!("{:?}: style=None", self.script_type_id())
}
} else {
format!("{:?}: style_data=None", self.script_type_id())
}
}
/// Returns the interior of this node as a `LayoutJS`. This is highly unsafe for layout to
/// call and as such is marked `unsafe`.
unsafe fn get_jsmanaged(&self) -> &LayoutJS<Node> {