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Move selection to end when textarea value is assigned

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Issue #19171
This commit is contained in:
Jon Leighton 2017-11-23 19:21:44 +01:00
parent ac576910d2
commit a7a5babb3a
5 changed files with 44 additions and 56 deletions
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21
components/script/dom/htmltextareaelement.rs
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@ -34,7 +34,7 @@ use std::default::Default;
use std::ops::Range;
use style::attr::AttrValue;
use style::element_state::ElementState;
use textinput::{KeyReaction, Lines, SelectionDirection, TextInput};
use textinput::{Direction, KeyReaction, Lines, Selection, SelectionDirection, TextInput};
#[dom_struct]
pub struct HTMLTextAreaElement {
@ -232,10 +232,25 @@ impl HTMLTextAreaElementMethods for HTMLTextAreaElement {
// https://html.spec.whatwg.org/multipage/#dom-textarea-value
fn SetValue(&self, value: DOMString) {
// TODO move the cursor to the end of the field
self.textinput.borrow_mut().set_content(value);
let mut textinput = self.textinput.borrow_mut();
// Step 1
let old_value = textinput.get_content();
let old_selection = textinput.selection_begin;
// Step 2
textinput.set_content(value);
// Step 3
self.value_changed.set(true);
if old_value != textinput.get_content() {
// Step 4
textinput.adjust_horizontal_to_limit(Direction::Forward, Selection::NotSelected);
} else {
textinput.selection_begin = old_selection;
}
self.upcast::<Node>().dirty(NodeDamage::OtherNodeDamage);
}