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Steps 7-9 of the input type change algorithm

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Spec: https://html.spec.whatwg.org/multipage/input.html#input-type-change

In short, this resets the selection to the start of the field when the
type has changed from one which doesn't support the selection API to one
that does.

I couldn't see an existing WPT test covering this.
This commit is contained in:
Jon Leighton 2017-12-11 21:30:47 +01:00
parent ce7bae8834
commit a8b64aca2a
5 changed files with 40 additions and 7 deletions
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11
components/script/dom/htmlinputelement.rs
View file

@ -53,7 +53,7 @@ use std::ops::Range;
use style::attr::AttrValue;
use style::element_state::ElementState;
use style::str::split_commas;
use textinput::{SelectionDirection, TextInput};
use textinput::{Direction, SelectionDirection, TextInput};
use textinput::KeyReaction::{DispatchInput, Nothing, RedrawSelection, TriggerDefaultAction};
use textinput::Lines::Single;
@ -566,7 +566,7 @@ impl HTMLInputElementMethods for HTMLInputElement {
self.sanitize_value();
// Step 5.
if *self.textinput.borrow().single_line_content() != old_value {
self.textinput.borrow_mut().clear_selection_to_limit();
self.textinput.borrow_mut().clear_selection_to_limit(Direction::Forward);
}
}
ValueMode::Default |
@ -1159,6 +1159,8 @@ impl VirtualMethods for HTMLInputElement {
// https://html.spec.whatwg.org/multipage/#input-type-change
let (old_value_mode, old_idl_value) = (self.value_mode(), self.Value());
let previously_selectable = self.selection_api_applies();
self.input_type.set(new_type);
if new_type.is_textual() {
@ -1210,6 +1212,11 @@ impl VirtualMethods for HTMLInputElement {
// Step 6
self.sanitize_value();
// Steps 7-9
if !previously_selectable && self.selection_api_applies() {
self.textinput.borrow_mut().clear_selection_to_limit(Direction::Backward);
}
},
AttributeMutation::Removed => {
if self.input_type() == InputType::Radio {