зеркало из https://github.com/mozilla/gecko-dev.git
servo: Merge #19909 - Refactor implementation of TextControl (from jonleighton:refactor-textcontrol); r=jdm
The intention here is to make the flow more explicit. I.e. rather than calling `self.dom_select()` and relying on the programmer to know/realise that this method is provided by a trait, we call `self.selection().dom_select()` and the programmer can inspect the definition of `self.selection()` to follow the code. This came out of a discussion with KiChjang here: https://github.com/servo/servo/pull/19544#discussion_r156167044 Note that I tried to make "selection" be a member field of HTML{Input,TextArea}Element but it opened up a whole can of worms with lifetimes, so it seemed simpler to not do that since it is not essential for this code to work. r? @jdm and @KiChjang Source-Repo: https://github.com/servo/servo Source-Revision: ff54a58694af43fc549baa6c64bf6ebc5c37385f --HG-- extra : subtree_source : https%3A//hg.mozilla.org/projects/converted-servo-linear extra : subtree_revision : 308bb6755c90c07004c00e5cefacfaa4fa1f6ade
This commit is contained in:
Родитель
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Коммит
3a3efc8b2b
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@ -32,7 +32,7 @@ use dom::mouseevent::MouseEvent;
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use dom::node::{Node, NodeDamage, UnbindContext};
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use dom::node::{document_from_node, window_from_node};
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use dom::nodelist::NodeList;
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use dom::textcontrol::TextControl;
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use dom::textcontrol::{TextControlElement, TextControlSelection};
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use dom::validation::Validatable;
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use dom::validitystate::ValidationFlags;
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use dom::virtualmethods::VirtualMethods;
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@ -400,11 +400,7 @@ impl LayoutHTMLInputElementHelpers for LayoutDom<HTMLInputElement> {
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}
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}
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impl TextControl for HTMLInputElement {
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fn textinput(&self) -> &DomRefCell<TextInput<ScriptToConstellationChan>> {
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&self.textinput
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}
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impl TextControlElement for HTMLInputElement {
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// https://html.spec.whatwg.org/multipage/#concept-input-apply
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fn selection_api_applies(&self) -> bool {
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match self.input_type() {
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@ -715,55 +711,53 @@ impl HTMLInputElementMethods for HTMLInputElement {
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// https://html.spec.whatwg.org/multipage/#dom-textarea/input-select
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fn Select(&self) {
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self.dom_select(); // defined in TextControl trait
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self.selection().dom_select();
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}
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// https://html.spec.whatwg.org/multipage/#dom-textarea/input-selectionstart
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fn GetSelectionStart(&self) -> Option<u32> {
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self.get_dom_selection_start()
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self.selection().dom_start()
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}
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// https://html.spec.whatwg.org/multipage/#dom-textarea/input-selectionstart
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fn SetSelectionStart(&self, start: Option<u32>) -> ErrorResult {
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self.set_dom_selection_start(start)
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self.selection().set_dom_start(start)
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}
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// https://html.spec.whatwg.org/multipage/#dom-textarea/input-selectionend
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fn GetSelectionEnd(&self) -> Option<u32> {
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self.get_dom_selection_end()
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self.selection().dom_end()
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}
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// https://html.spec.whatwg.org/multipage/#dom-textarea/input-selectionend
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fn SetSelectionEnd(&self, end: Option<u32>) -> ErrorResult {
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self.set_dom_selection_end(end)
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self.selection().set_dom_end(end)
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}
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// https://html.spec.whatwg.org/multipage/#dom-textarea/input-selectiondirection
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fn GetSelectionDirection(&self) -> Option<DOMString> {
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self.get_dom_selection_direction()
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self.selection().dom_direction()
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}
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// https://html.spec.whatwg.org/multipage/#dom-textarea/input-selectiondirection
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fn SetSelectionDirection(&self, direction: Option<DOMString>) -> ErrorResult {
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self.set_dom_selection_direction(direction)
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self.selection().set_dom_direction(direction)
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}
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// https://html.spec.whatwg.org/multipage/#dom-textarea/input-setselectionrange
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fn SetSelectionRange(&self, start: u32, end: u32, direction: Option<DOMString>) -> ErrorResult {
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self.set_dom_selection_range(start, end, direction)
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self.selection().set_dom_range(start, end, direction)
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}
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// https://html.spec.whatwg.org/multipage/#dom-textarea/input-setrangetext
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fn SetRangeText(&self, replacement: DOMString) -> ErrorResult {
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// defined in TextControl trait
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self.set_dom_range_text(replacement, None, None, Default::default())
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self.selection().set_dom_range_text(replacement, None, None, Default::default())
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}
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// https://html.spec.whatwg.org/multipage/#dom-textarea/input-setrangetext
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fn SetRangeText_(&self, replacement: DOMString, start: u32, end: u32,
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selection_mode: SelectionMode) -> ErrorResult {
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// defined in TextControl trait
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self.set_dom_range_text(replacement, Some(start), Some(end), selection_mode)
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self.selection().set_dom_range_text(replacement, Some(start), Some(end), selection_mode)
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}
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// Select the files based on filepaths passed in,
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@ -1104,6 +1098,11 @@ impl HTMLInputElement {
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_ => ()
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}
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}
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#[allow(unrooted_must_root)]
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fn selection(&self) -> TextControlSelection<Self> {
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TextControlSelection::new(&self, &self.textinput)
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}
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}
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impl VirtualMethods for HTMLInputElement {
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@ -25,7 +25,7 @@ use dom::keyboardevent::KeyboardEvent;
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use dom::node::{ChildrenMutation, Node, NodeDamage, UnbindContext};
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use dom::node::{document_from_node, window_from_node};
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use dom::nodelist::NodeList;
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use dom::textcontrol::TextControl;
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use dom::textcontrol::{TextControlElement, TextControlSelection};
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use dom::validation::Validatable;
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use dom::virtualmethods::VirtualMethods;
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use dom_struct::dom_struct;
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@ -145,11 +145,7 @@ impl HTMLTextAreaElement {
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}
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}
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impl TextControl for HTMLTextAreaElement {
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fn textinput(&self) -> &DomRefCell<TextInput<ScriptToConstellationChan>> {
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&self.textinput
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}
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impl TextControlElement for HTMLTextAreaElement {
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fn selection_api_applies(&self) -> bool {
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true
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}
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@ -277,55 +273,53 @@ impl HTMLTextAreaElementMethods for HTMLTextAreaElement {
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// https://html.spec.whatwg.org/multipage/#dom-textarea/input-select
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fn Select(&self) {
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self.dom_select(); // defined in TextControl trait
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self.selection().dom_select();
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}
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// https://html.spec.whatwg.org/multipage/#dom-textarea/input-selectionstart
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fn GetSelectionStart(&self) -> Option<u32> {
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self.get_dom_selection_start()
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self.selection().dom_start()
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}
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// https://html.spec.whatwg.org/multipage/#dom-textarea/input-selectionstart
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fn SetSelectionStart(&self, start: Option<u32>) -> ErrorResult {
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self.set_dom_selection_start(start)
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self.selection().set_dom_start(start)
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}
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// https://html.spec.whatwg.org/multipage/#dom-textarea/input-selectionend
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fn GetSelectionEnd(&self) -> Option<u32> {
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self.get_dom_selection_end()
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self.selection().dom_end()
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}
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// https://html.spec.whatwg.org/multipage/#dom-textarea/input-selectionend
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fn SetSelectionEnd(&self, end: Option<u32>) -> ErrorResult {
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self.set_dom_selection_end(end)
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self.selection().set_dom_end(end)
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}
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// https://html.spec.whatwg.org/multipage/#dom-textarea/input-selectiondirection
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fn GetSelectionDirection(&self) -> Option<DOMString> {
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self.get_dom_selection_direction()
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self.selection().dom_direction()
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}
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// https://html.spec.whatwg.org/multipage/#dom-textarea/input-selectiondirection
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fn SetSelectionDirection(&self, direction: Option<DOMString>) -> ErrorResult {
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self.set_dom_selection_direction(direction)
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self.selection().set_dom_direction(direction)
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}
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// https://html.spec.whatwg.org/multipage/#dom-textarea/input-setselectionrange
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fn SetSelectionRange(&self, start: u32, end: u32, direction: Option<DOMString>) -> ErrorResult {
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self.set_dom_selection_range(start, end, direction)
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self.selection().set_dom_range(start, end, direction)
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}
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// https://html.spec.whatwg.org/multipage/#dom-textarea/input-setrangetext
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fn SetRangeText(&self, replacement: DOMString) -> ErrorResult {
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// defined in TextControl trait
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self.set_dom_range_text(replacement, None, None, Default::default())
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self.selection().set_dom_range_text(replacement, None, None, Default::default())
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}
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// https://html.spec.whatwg.org/multipage/#dom-textarea/input-setrangetext
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fn SetRangeText_(&self, replacement: DOMString, start: u32, end: u32,
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selection_mode: SelectionMode) -> ErrorResult {
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// defined in TextControl trait
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self.set_dom_range_text(replacement, Some(start), Some(end), selection_mode)
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self.selection().set_dom_range_text(replacement, Some(start), Some(end), selection_mode)
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}
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}
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@ -336,6 +330,11 @@ impl HTMLTextAreaElement {
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self.SetValue(self.DefaultValue());
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self.value_dirty.set(false);
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}
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#[allow(unrooted_must_root)]
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fn selection(&self) -> TextControlSelection<Self> {
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TextControlSelection::new(&self, &self.textinput)
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}
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}
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@ -2,6 +2,11 @@
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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//! This is an abstraction used by `HTMLInputElement` and `HTMLTextAreaElement` to implement the
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//! text control selection DOM API.
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//!
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//! https://html.spec.whatwg.org/multipage/#textFieldSelection
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use dom::bindings::cell::DomRefCell;
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use dom::bindings::codegen::Bindings::HTMLFormElementBinding::SelectionMode;
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use dom::bindings::conversions::DerivedFrom;
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@ -13,43 +18,53 @@ use dom::node::{Node, NodeDamage, window_from_node};
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use script_traits::ScriptToConstellationChan;
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use textinput::{SelectionDirection, SelectionState, TextInput};
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pub trait TextControl: DerivedFrom<EventTarget> + DerivedFrom<Node> {
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fn textinput(&self) -> &DomRefCell<TextInput<ScriptToConstellationChan>>;
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pub trait TextControlElement: DerivedFrom<EventTarget> + DerivedFrom<Node> {
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fn selection_api_applies(&self) -> bool;
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fn has_selectable_text(&self) -> bool;
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fn set_dirty_value_flag(&self, value: bool);
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}
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pub struct TextControlSelection<'a, E: TextControlElement> {
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element: &'a E,
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textinput: &'a DomRefCell<TextInput<ScriptToConstellationChan>>,
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}
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impl<'a, E: TextControlElement> TextControlSelection<'a, E> {
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pub fn new(element: &'a E, textinput: &'a DomRefCell<TextInput<ScriptToConstellationChan>>) -> Self {
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TextControlSelection { element, textinput }
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}
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// https://html.spec.whatwg.org/multipage/#dom-textarea/input-select
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fn dom_select(&self) {
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pub fn dom_select(&self) {
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// Step 1
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if !self.has_selectable_text() {
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if !self.element.has_selectable_text() {
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return;
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}
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// Step 2
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self.set_selection_range(Some(0), Some(u32::max_value()), None, None);
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self.set_range(Some(0), Some(u32::max_value()), None, None);
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}
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// https://html.spec.whatwg.org/multipage/#dom-textarea/input-selectionstart
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fn get_dom_selection_start(&self) -> Option<u32> {
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pub fn dom_start(&self) -> Option<u32> {
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// Step 1
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if !self.selection_api_applies() {
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if !self.element.selection_api_applies() {
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return None;
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}
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// Steps 2-3
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Some(self.selection_start())
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Some(self.start())
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}
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// https://html.spec.whatwg.org/multipage/#dom-textarea/input-selectionstart
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fn set_dom_selection_start(&self, start: Option<u32>) -> ErrorResult {
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pub fn set_dom_start(&self, start: Option<u32>) -> ErrorResult {
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// Step 1
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if !self.selection_api_applies() {
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if !self.element.selection_api_applies() {
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return Err(Error::InvalidState);
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}
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// Step 2
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let mut end = self.selection_end();
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let mut end = self.end();
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// Step 3
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if let Some(s) = start {
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|
@ -59,54 +74,54 @@ pub trait TextControl: DerivedFrom<EventTarget> + DerivedFrom<Node> {
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}
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// Step 4
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self.set_selection_range(start, Some(end), Some(self.selection_direction()), None);
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self.set_range(start, Some(end), Some(self.direction()), None);
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Ok(())
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}
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// https://html.spec.whatwg.org/multipage/#dom-textarea/input-selectionend
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fn get_dom_selection_end(&self) -> Option<u32> {
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pub fn dom_end(&self) -> Option<u32> {
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// Step 1
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if !self.selection_api_applies() {
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if !self.element.selection_api_applies() {
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return None;
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}
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// Steps 2-3
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Some(self.selection_end())
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Some(self.end())
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}
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// https://html.spec.whatwg.org/multipage/#dom-textarea/input-selectionend
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fn set_dom_selection_end(&self, end: Option<u32>) -> ErrorResult {
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pub fn set_dom_end(&self, end: Option<u32>) -> ErrorResult {
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// Step 1
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if !self.selection_api_applies() {
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if !self.element.selection_api_applies() {
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return Err(Error::InvalidState);
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}
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// Step 2
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self.set_selection_range(Some(self.selection_start()), end, Some(self.selection_direction()), None);
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self.set_range(Some(self.start()), end, Some(self.direction()), None);
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Ok(())
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}
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// https://html.spec.whatwg.org/multipage/#dom-textarea/input-selectiondirection
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fn get_dom_selection_direction(&self) -> Option<DOMString> {
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pub fn dom_direction(&self) -> Option<DOMString> {
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// Step 1
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if !self.selection_api_applies() {
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if !self.element.selection_api_applies() {
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return None;
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}
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Some(DOMString::from(self.selection_direction()))
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Some(DOMString::from(self.direction()))
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}
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// https://html.spec.whatwg.org/multipage/#dom-textarea/input-selectiondirection
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fn set_dom_selection_direction(&self, direction: Option<DOMString>) -> ErrorResult {
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pub fn set_dom_direction(&self, direction: Option<DOMString>) -> ErrorResult {
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// Step 1
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if !self.selection_api_applies() {
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if !self.element.selection_api_applies() {
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return Err(Error::InvalidState);
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}
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// Step 2
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self.set_selection_range(
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Some(self.selection_start()),
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Some(self.selection_end()),
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self.set_range(
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Some(self.start()),
|
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Some(self.end()),
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direction.map(|d| SelectionDirection::from(d)),
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None
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);
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|
@ -114,31 +129,36 @@ pub trait TextControl: DerivedFrom<EventTarget> + DerivedFrom<Node> {
|
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}
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// https://html.spec.whatwg.org/multipage/#dom-textarea/input-setselectionrange
|
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fn set_dom_selection_range(&self, start: u32, end: u32, direction: Option<DOMString>) -> ErrorResult {
|
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pub fn set_dom_range(&self, start: u32, end: u32, direction: Option<DOMString>) -> ErrorResult {
|
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// Step 1
|
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if !self.selection_api_applies() {
|
||||
if !self.element.selection_api_applies() {
|
||||
return Err(Error::InvalidState);
|
||||
}
|
||||
|
||||
// Step 2
|
||||
self.set_selection_range(Some(start), Some(end), direction.map(|d| SelectionDirection::from(d)), None);
|
||||
self.set_range(Some(start), Some(end), direction.map(|d| SelectionDirection::from(d)), None);
|
||||
Ok(())
|
||||
}
|
||||
|
||||
// https://html.spec.whatwg.org/multipage/#dom-textarea/input-setrangetext
|
||||
fn set_dom_range_text(&self, replacement: DOMString, start: Option<u32>, end: Option<u32>,
|
||||
selection_mode: SelectionMode) -> ErrorResult {
|
||||
pub fn set_dom_range_text(
|
||||
&self,
|
||||
replacement: DOMString,
|
||||
start: Option<u32>,
|
||||
end: Option<u32>,
|
||||
selection_mode: SelectionMode
|
||||
) -> ErrorResult {
|
||||
// Step 1
|
||||
if !self.selection_api_applies() {
|
||||
if !self.element.selection_api_applies() {
|
||||
return Err(Error::InvalidState);
|
||||
}
|
||||
|
||||
// Step 2
|
||||
self.set_dirty_value_flag(true);
|
||||
self.element.set_dirty_value_flag(true);
|
||||
|
||||
// Step 3
|
||||
let mut start = start.unwrap_or_else(|| self.selection_start());
|
||||
let mut end = end.unwrap_or_else(|| self.selection_end());
|
||||
let mut start = start.unwrap_or_else(|| self.start());
|
||||
let mut end = end.unwrap_or_else(|| self.end());
|
||||
|
||||
// Step 4
|
||||
if start > end {
|
||||
|
@ -147,9 +167,9 @@ pub trait TextControl: DerivedFrom<EventTarget> + DerivedFrom<Node> {
|
|||
|
||||
// Save the original selection state to later pass to set_selection_range, because we will
|
||||
// change the selection state in order to replace the text in the range.
|
||||
let original_selection_state = self.textinput().borrow().selection_state();
|
||||
let original_selection_state = self.textinput.borrow().selection_state();
|
||||
|
||||
let content_length = self.textinput().borrow().len() as u32;
|
||||
let content_length = self.textinput.borrow().len() as u32;
|
||||
|
||||
// Step 5
|
||||
if start > content_length {
|
||||
|
@ -162,10 +182,10 @@ pub trait TextControl: DerivedFrom<EventTarget> + DerivedFrom<Node> {
|
|||
}
|
||||
|
||||
// Step 7
|
||||
let mut selection_start = self.selection_start();
|
||||
let mut selection_start = self.start();
|
||||
|
||||
// Step 8
|
||||
let mut selection_end = self.selection_end();
|
||||
let mut selection_end = self.end();
|
||||
|
||||
// Step 11
|
||||
// Must come before the textinput.replace_selection() call, as replacement gets moved in
|
||||
|
@ -173,7 +193,7 @@ pub trait TextControl: DerivedFrom<EventTarget> + DerivedFrom<Node> {
|
|||
let new_length = replacement.len() as u32;
|
||||
|
||||
{
|
||||
let mut textinput = self.textinput().borrow_mut();
|
||||
let mut textinput = self.textinput.borrow_mut();
|
||||
|
||||
// Steps 9-10
|
||||
textinput.set_selection_range(start, end, SelectionDirection::None);
|
||||
|
@ -224,32 +244,31 @@ pub trait TextControl: DerivedFrom<EventTarget> + DerivedFrom<Node> {
|
|||
}
|
||||
|
||||
// Step 14
|
||||
self.set_selection_range(
|
||||
Some(selection_start),
|
||||
Some(selection_end),
|
||||
None,
|
||||
Some(original_selection_state)
|
||||
);
|
||||
|
||||
self.set_range(Some(selection_start), Some(selection_end), None, Some(original_selection_state));
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn selection_start(&self) -> u32 {
|
||||
self.textinput().borrow().selection_start_offset() as u32
|
||||
fn start(&self) -> u32 {
|
||||
self.textinput.borrow().selection_start_offset() as u32
|
||||
}
|
||||
|
||||
fn selection_end(&self) -> u32 {
|
||||
self.textinput().borrow().selection_end_offset() as u32
|
||||
fn end(&self) -> u32 {
|
||||
self.textinput.borrow().selection_end_offset() as u32
|
||||
}
|
||||
|
||||
fn selection_direction(&self) -> SelectionDirection {
|
||||
self.textinput().borrow().selection_direction
|
||||
fn direction(&self) -> SelectionDirection {
|
||||
self.textinput.borrow().selection_direction
|
||||
}
|
||||
|
||||
// https://html.spec.whatwg.org/multipage/#set-the-selection-range
|
||||
fn set_selection_range(&self, start: Option<u32>, end: Option<u32>, direction: Option<SelectionDirection>,
|
||||
original_selection_state: Option<SelectionState>) {
|
||||
let mut textinput = self.textinput().borrow_mut();
|
||||
fn set_range(
|
||||
&self,
|
||||
start: Option<u32>,
|
||||
end: Option<u32>,
|
||||
direction: Option<SelectionDirection>,
|
||||
original_selection_state: Option<SelectionState>
|
||||
) {
|
||||
let mut textinput = self.textinput.borrow_mut();
|
||||
let original_selection_state = original_selection_state.unwrap_or_else(|| textinput.selection_state());
|
||||
|
||||
// Step 1
|
||||
|
@ -263,15 +282,15 @@ pub trait TextControl: DerivedFrom<EventTarget> + DerivedFrom<Node> {
|
|||
|
||||
// Step 6
|
||||
if textinput.selection_state() != original_selection_state {
|
||||
let window = window_from_node(self);
|
||||
let window = window_from_node(self.element);
|
||||
window.user_interaction_task_source().queue_event(
|
||||
&self.upcast::<EventTarget>(),
|
||||
&self.element.upcast::<EventTarget>(),
|
||||
atom!("select"),
|
||||
EventBubbles::Bubbles,
|
||||
EventCancelable::NotCancelable,
|
||||
&window);
|
||||
}
|
||||
|
||||
self.upcast::<Node>().dirty(NodeDamage::OtherNodeDamage);
|
||||
self.element.upcast::<Node>().dirty(NodeDamage::OtherNodeDamage);
|
||||
}
|
||||
}
|
||||
|
|
Загрузка…
Ссылка в новой задаче