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Extract common text control selection code

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The API for text control selection is the same for both <input> and
<textarea>:

https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#textFieldSelection

Before this change, they had similar but not identical implementations
with duplicate code. Now there is a common TextControl trait which
contains the implementation used by both. As a result, some previously
failing tests now pass.
This commit is contained in:
Jon Leighton 2017-11-17 21:34:35 +01:00
parent f290cacccd
commit 6beda3c761
5 changed files with 124 additions and 97 deletions
Download patch file Download diff file Expand all files Collapse all files

67
components/script/dom/htmltextareaelement.rs
View file

@ -23,6 +23,7 @@ use dom::keyboardevent::KeyboardEvent;
use dom::node::{ChildrenMutation, Node, NodeDamage, UnbindContext};
use dom::node::{document_from_node, window_from_node};
use dom::nodelist::NodeList;
use dom::textcontrol::TextControl;
use dom::validation::Validatable;
use dom::virtualmethods::VirtualMethods;
use dom_struct::dom_struct;
@ -140,6 +141,12 @@ impl HTMLTextAreaElement {
}
}
impl TextControl for HTMLTextAreaElement {
fn textinput(&self) -> &DomRefCell<TextInput<ScriptToConstellationChan>> {
&self.textinput
}
}
impl HTMLTextAreaElementMethods for HTMLTextAreaElement {
// TODO A few of these attributes have default values and additional
// constraints
@ -237,53 +244,39 @@ impl HTMLTextAreaElementMethods for HTMLTextAreaElement {
self.upcast::<HTMLElement>().labels()
}
// https://html.spec.whatwg.org/multipage/#dom-textarea/input-selectiondirection
fn SetSelectionDirection(&self, direction: DOMString) {
self.textinput.borrow_mut().selection_direction = SelectionDirection::from(direction);
}
// https://html.spec.whatwg.org/multipage/#dom-textarea/input-selectiondirection
fn SelectionDirection(&self) -> DOMString {
DOMString::from(self.textinput.borrow().selection_direction)
}
// https://html.spec.whatwg.org/multipage/#dom-textarea/input-selectionend
fn SetSelectionEnd(&self, end: u32) {
let selection_start = self.SelectionStart();
self.textinput.borrow_mut().set_selection_range(selection_start, end);
self.upcast::<Node>().dirty(NodeDamage::OtherNodeDamage);
}
// https://html.spec.whatwg.org/multipage/#dom-textarea/input-selectionend
fn SelectionEnd(&self) -> u32 {
self.textinput.borrow().get_absolute_insertion_point() as u32
// https://html.spec.whatwg.org/multipage/#dom-textarea/input-selectionstart
fn SelectionStart(&self) -> u32 {
self.dom_selection_start()
}
// https://html.spec.whatwg.org/multipage/#dom-textarea/input-selectionstart
fn SetSelectionStart(&self, start: u32) {
let selection_end = self.SelectionEnd();
self.textinput.borrow_mut().set_selection_range(start, selection_end);
self.upcast::<Node>().dirty(NodeDamage::OtherNodeDamage);
self.set_dom_selection_start(start);
}
// https://html.spec.whatwg.org/multipage/#dom-textarea/input-selectionstart
fn SelectionStart(&self) -> u32 {
self.textinput.borrow().get_selection_start()
// https://html.spec.whatwg.org/multipage/#dom-textarea/input-selectionend
fn SelectionEnd(&self) -> u32 {
self.dom_selection_end()
}
// https://html.spec.whatwg.org/multipage/#dom-textarea/input-selectionend
fn SetSelectionEnd(&self, end: u32) {
self.set_dom_selection_end(end);
}
// https://html.spec.whatwg.org/multipage/#dom-textarea/input-selectiondirection
fn SelectionDirection(&self) -> DOMString {
self.dom_selection_direction()
}
// https://html.spec.whatwg.org/multipage/#dom-textarea/input-selectiondirection
fn SetSelectionDirection(&self, direction: DOMString) {
self.set_dom_selection_direction(direction);
}
// https://html.spec.whatwg.org/multipage/#dom-textarea/input-setselectionrange
fn SetSelectionRange(&self, start: u32, end: u32, direction: Option<DOMString>) {
let direction = direction.map_or(SelectionDirection::None, |d| SelectionDirection::from(d));
self.textinput.borrow_mut().selection_direction = direction;
self.textinput.borrow_mut().set_selection_range(start, end);
let window = window_from_node(self);
let _ = window.user_interaction_task_source().queue_event(
&self.upcast(),
atom!("select"),
EventBubbles::Bubbles,
EventCancelable::NotCancelable,
&window);
self.upcast::<Node>().dirty(NodeDamage::OtherNodeDamage);
self.set_dom_selection_range(start, end, direction);
}
}