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Correct default Selectionstart and SelectionEnd

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This commit is contained in:
paavininanda 2018-02-06 22:33:12 +05:30
parent e19bab84cf
commit b2c1f89b93
8 changed files with 144 additions and 87 deletions
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55
components/script/dom/htmltextareaelement.rs
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@ -233,7 +233,7 @@ impl HTMLTextAreaElementMethods for HTMLTextAreaElement {
// if the element's dirty value flag is false, then the element's
// raw value must be set to the value of the element's textContent IDL attribute
if !self.value_dirty.get() {
self.reset();
self.reset(false);
}
}
@ -244,26 +244,7 @@ impl HTMLTextAreaElementMethods for HTMLTextAreaElement {
// https://html.spec.whatwg.org/multipage/#dom-textarea-value
fn SetValue(&self, value: DOMString) {
let mut textinput = self.textinput.borrow_mut();
// Step 1
let old_value = textinput.get_content();
let old_selection = textinput.selection_origin;
// Step 2
textinput.set_content(value);
// Step 3
self.value_dirty.set(true);
if old_value != textinput.get_content() {
// Step 4
textinput.clear_selection_to_limit(Direction::Forward);
} else {
textinput.selection_origin = old_selection;
}
self.upcast::<Node>().dirty(NodeDamage::OtherNodeDamage);
self.update_text_contents(value, true);
}
// https://html.spec.whatwg.org/multipage/#dom-lfe-labels
@ -325,9 +306,9 @@ impl HTMLTextAreaElementMethods for HTMLTextAreaElement {
impl HTMLTextAreaElement {
pub fn reset(&self) {
pub fn reset(&self, update_text_cursor: bool) {
// https://html.spec.whatwg.org/multipage/#the-textarea-element:concept-form-reset-control
self.SetValue(self.DefaultValue());
self.update_text_contents(self.DefaultValue(), update_text_cursor);
self.value_dirty.set(false);
}
@ -335,6 +316,30 @@ impl HTMLTextAreaElement {
fn selection(&self) -> TextControlSelection<Self> {
TextControlSelection::new(&self, &self.textinput)
}
// Helper function to check if text_cursor is to be updated or not
fn update_text_contents(&self, value: DOMString, update_text_cursor: bool) {
let mut textinput = self.textinput.borrow_mut();
// Step 1
let old_value = textinput.get_content();
let old_selection = textinput.selection_origin;
// Step 2
textinput.set_content(value, update_text_cursor);
// Step 3
self.value_dirty.set(true);
if old_value != textinput.get_content() {
// Step 4
textinput.clear_selection_to_limit(Direction::Forward, update_text_cursor);
} else {
textinput.selection_origin = old_selection;
}
self.upcast::<Node>().dirty(NodeDamage::OtherNodeDamage);
}
}
@ -427,7 +432,7 @@ impl VirtualMethods for HTMLTextAreaElement {
s.children_changed(mutation);
}
if !self.value_dirty.get() {
self.reset();
self.reset(false);
}
}
@ -478,7 +483,7 @@ impl VirtualMethods for HTMLTextAreaElement {
self.super_type().unwrap().pop();
// https://html.spec.whatwg.org/multipage/#the-textarea-element:stack-of-open-elements
self.reset();
self.reset(false);
}
}