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Selection interface working for synthetic operations

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This commit is contained in:
Patrick Shaughnessy 2020-01-31 21:56:36 -05:00
parent e697e6cca7
commit 5ef3358951
30 changed files with 812 additions and 8468 deletions
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54
components/script/dom/range.rs
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@ -2,6 +2,7 @@
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
use crate::dom::bindings::cell::DomRefCell;
use crate::dom::bindings::codegen::Bindings::CharacterDataBinding::CharacterDataMethods;
use crate::dom::bindings::codegen::Bindings::NodeBinding::NodeConstants;
use crate::dom::bindings::codegen::Bindings::NodeBinding::NodeMethods;
@ -24,6 +25,7 @@ use crate::dom::documentfragment::DocumentFragment;
use crate::dom::element::Element;
use crate::dom::htmlscriptelement::HTMLScriptElement;
use crate::dom::node::{Node, ShadowIncluding, UnbindContext};
use crate::dom::selection::Selection;
use crate::dom::text::Text;
use crate::dom::window::Window;
use dom_struct::dom_struct;
@ -37,6 +39,16 @@ pub struct Range {
reflector_: Reflector,
start: BoundaryPoint,
end: BoundaryPoint,
// A range that belongs to a Selection needs to know about it
// so selectionchange can fire when the range changes.
// A range shouldn't belong to more than one Selection at a time,
// but from the spec as of Feb 1 2020 I can't rule out a corner case like:
// * Select a range R in document A, from node X to Y
// * Insert everything from X to Y into document B
// * Set B's selection's range to R
// which leaves R technically, and observably, associated with A even though
// it will fail the same-root-node check on many of A's selection's methods.
associated_selections: DomRefCell<Vec<Dom<Selection>>>,
}
impl Range {
@ -50,6 +62,7 @@ impl Range {
reflector_: Reflector::new(),
start: BoundaryPoint::new(start_container, start_offset),
end: BoundaryPoint::new(end_container, end_offset),
associated_selections: DomRefCell::new(vec![]),
}
}
@ -163,6 +176,9 @@ impl Range {
// https://dom.spec.whatwg.org/#concept-range-bp-set
fn set_start(&self, node: &Node, offset: u32) {
if &self.start.node != node || self.start.offset.get() != offset {
self.report_change();
}
if &self.start.node != node {
if self.start.node == self.end.node {
node.ranges().push(WeakRef::new(&self));
@ -178,6 +194,9 @@ impl Range {
// https://dom.spec.whatwg.org/#concept-range-bp-set
fn set_end(&self, node: &Node, offset: u32) {
if &self.end.node != node || self.end.offset.get() != offset {
self.report_change();
}
if &self.end.node != node {
if self.end.node == self.start.node {
node.ranges().push(WeakRef::new(&self));
@ -228,6 +247,26 @@ impl Range {
// Step 6.
Ok(Ordering::Equal)
}
pub fn associate_selection(&self, selection: &Selection) {
let mut selections = self.associated_selections.borrow_mut();
if !selections.iter().any(|s| &**s == selection) {
selections.push(Dom::from_ref(selection));
}
}
pub fn disassociate_selection(&self, selection: &Selection) {
self.associated_selections
.borrow_mut()
.retain(|s| &**s != selection);
}
fn report_change(&self) {
self.associated_selections
.borrow()
.iter()
.for_each(|s| s.queue_selectionchange_task());
}
}
impl RangeMethods for Range {
@ -821,6 +860,9 @@ impl RangeMethods for Range {
// Step 3.
if start_node == end_node {
if let Some(text) = start_node.downcast::<CharacterData>() {
if end_offset > start_offset {
self.report_change();
}
return text.ReplaceData(start_offset, end_offset - start_offset, DOMString::new());
}
}
@ -1142,9 +1184,11 @@ impl WeakRangeVec {
entry.remove();
}
if &range.start.node == child {
range.report_change();
range.start.set(context.parent, offset);
}
if &range.end.node == child {
range.report_change();
range.end.set(context.parent, offset);
}
});
@ -1169,9 +1213,11 @@ impl WeakRangeVec {
entry.remove();
}
if &range.start.node == node {
range.report_change();
range.start.set(sibling, range.StartOffset() + length);
}
if &range.end.node == node {
range.report_change();
range.end.set(sibling, range.EndOffset() + length);
}
});
@ -1212,9 +1258,11 @@ impl WeakRangeVec {
}
if move_start {
range.report_change();
range.start.set(child, new_offset);
}
if move_end {
range.report_change();
range.end.set(child, new_offset);
}
});
@ -1273,9 +1321,11 @@ impl WeakRangeVec {
}
if move_start {
range.report_change();
range.start.set(sibling, start_offset - offset);
}
if move_end {
range.report_change();
range.end.set(sibling, end_offset - offset);
}
});
@ -1289,9 +1339,11 @@ impl WeakRangeVec {
(*self.cell.get()).update(|entry| {
let range = entry.root().unwrap();
if &range.start.node == node && offset == range.StartOffset() {
range.report_change();
range.start.set_offset(offset + 1);
}
if &range.end.node == node && offset == range.EndOffset() {
range.report_change();
range.end.set_offset(offset + 1);
}
});
@ -1304,10 +1356,12 @@ impl WeakRangeVec {
let range = entry.root().unwrap();
let start_offset = range.StartOffset();
if &range.start.node == node && start_offset > offset {
range.report_change();
range.start.set_offset(f(start_offset));
}
let end_offset = range.EndOffset();
if &range.end.node == node && end_offset > offset {
range.report_change();
range.end.set_offset(f(end_offset));
}
});