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Only restyle viewport-relative nodes on viewport size change

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This commit is contained in:
Shing Lyu 2016-06-22 16:44:04 +08:00
parent e7a55ae55e
commit f754cacbd5
28 changed files with 515 additions and 11 deletions
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19
components/script/layout_wrapper.rs
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@ -36,7 +36,7 @@ use dom::bindings::js::LayoutJS;
use dom::characterdata::LayoutCharacterDataHelpers;
use dom::document::{Document, LayoutDocumentHelpers};
use dom::element::{Element, LayoutElementHelpers, RawLayoutElementHelpers};
use dom::node::{CAN_BE_FRAGMENTED, HAS_CHANGED, HAS_DIRTY_DESCENDANTS, IS_DIRTY};
use dom::node::{CAN_BE_FRAGMENTED, HAS_CHANGED, HAS_DIRTY_DESCENDANTS, IS_DIRTY, DIRTY_ON_VIEWPORT_SIZE_CHANGE};
use dom::node::{Node, LayoutNodeHelpers};
use dom::text::Text;
use gfx_traits::ByteIndex;
@ -193,6 +193,23 @@ impl<'ln> TNode for ServoLayoutNode<'ln> {
self.node.set_flag(HAS_DIRTY_DESCENDANTS, value)
}
fn needs_dirty_on_viewport_size_changed(&self) -> bool {
unsafe { self.node.get_flag(DIRTY_ON_VIEWPORT_SIZE_CHANGE) }
}
unsafe fn set_dirty_on_viewport_size_changed(&self) {
self.node.set_flag(DIRTY_ON_VIEWPORT_SIZE_CHANGE, true);
}
fn set_descendants_dirty_on_viewport_size_changed(&self) {
for ref child in self.children() {
unsafe {
child.set_dirty_on_viewport_size_changed();
}
child.set_descendants_dirty_on_viewport_size_changed();
}
}
fn can_be_fragmented(&self) -> bool {
unsafe { self.node.get_flag(CAN_BE_FRAGMENTED) }
}