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7d6ea83479
Given codegen now generates the various TypeId enums, it seems pointless to still have to write their respective values in every DOM struct inheriting from Node just to set the initial IS_IN_DOC flag in Document and IN_ENABLED_STATE in form controls.
369 lines
13 KiB
Rust
369 lines
13 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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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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use dom::attr::{Attr, AttrValue};
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use dom::bindings::cell::DOMRefCell;
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use dom::bindings::codegen::Bindings::EventBinding::EventMethods;
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use dom::bindings::codegen::Bindings::HTMLTextAreaElementBinding;
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use dom::bindings::codegen::Bindings::HTMLTextAreaElementBinding::HTMLTextAreaElementMethods;
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use dom::bindings::codegen::Bindings::NodeBinding::NodeMethods;
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use dom::bindings::codegen::InheritTypes::{ElementCast, EventTargetCast};
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use dom::bindings::codegen::InheritTypes::{HTMLElementCast, HTMLFieldSetElementDerived};
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use dom::bindings::codegen::InheritTypes::{KeyboardEventCast, NodeCast};
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use dom::bindings::global::GlobalRef;
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use dom::bindings::js::{LayoutJS, Root};
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use dom::bindings::refcounted::Trusted;
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use dom::document::Document;
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use dom::element::AttributeMutation;
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use dom::event::{Event, EventBubbles, EventCancelable};
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use dom::htmlelement::HTMLElement;
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use dom::htmlformelement::{FormControl, HTMLFormElement};
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use dom::keyboardevent::KeyboardEvent;
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use dom::node::{ChildrenMutation, IN_ENABLED_STATE, Node, NodeDamage};
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use dom::node::{NodeFlags, document_from_node, window_from_node};
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use dom::virtualmethods::VirtualMethods;
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use msg::constellation_msg::ConstellationChan;
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use script_task::ScriptTaskEventCategory::InputEvent;
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use script_task::{CommonScriptMsg, Runnable};
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use std::borrow::ToOwned;
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use std::cell::Cell;
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use string_cache::Atom;
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use textinput::{KeyReaction, Lines, TextInput};
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use util::str::DOMString;
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#[dom_struct]
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pub struct HTMLTextAreaElement {
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htmlelement: HTMLElement,
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#[ignore_heap_size_of = "#7193"]
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textinput: DOMRefCell<TextInput<ConstellationChan>>,
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cols: Cell<u32>,
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rows: Cell<u32>,
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// https://html.spec.whatwg.org/multipage/#concept-textarea-dirty
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value_changed: Cell<bool>,
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}
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pub trait LayoutHTMLTextAreaElementHelpers {
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#[allow(unsafe_code)]
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unsafe fn get_value_for_layout(self) -> String;
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}
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pub trait RawLayoutHTMLTextAreaElementHelpers {
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#[allow(unsafe_code)]
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unsafe fn get_cols_for_layout(self) -> u32;
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#[allow(unsafe_code)]
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unsafe fn get_rows_for_layout(self) -> u32;
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}
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impl LayoutHTMLTextAreaElementHelpers for LayoutJS<HTMLTextAreaElement> {
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#[allow(unrooted_must_root)]
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#[allow(unsafe_code)]
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unsafe fn get_value_for_layout(self) -> String {
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(*self.unsafe_get()).textinput.borrow_for_layout().get_content()
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}
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}
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impl<'a> RawLayoutHTMLTextAreaElementHelpers for &'a HTMLTextAreaElement {
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#[allow(unrooted_must_root)]
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#[allow(unsafe_code)]
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unsafe fn get_cols_for_layout(self) -> u32 {
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self.cols.get()
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}
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#[allow(unrooted_must_root)]
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#[allow(unsafe_code)]
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unsafe fn get_rows_for_layout(self) -> u32 {
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self.rows.get()
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}
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}
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static DEFAULT_COLS: u32 = 20;
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static DEFAULT_ROWS: u32 = 2;
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impl HTMLTextAreaElement {
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fn new_inherited(localName: DOMString,
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prefix: Option<DOMString>,
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document: &Document) -> HTMLTextAreaElement {
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let chan = document.window().r().constellation_chan();
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HTMLTextAreaElement {
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htmlelement:
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HTMLElement::new_inherited_with_flags(NodeFlags::new() | IN_ENABLED_STATE,
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localName, prefix, document),
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textinput: DOMRefCell::new(TextInput::new(Lines::Multiple, "".to_owned(), chan)),
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cols: Cell::new(DEFAULT_COLS),
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rows: Cell::new(DEFAULT_ROWS),
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value_changed: Cell::new(false),
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}
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}
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#[allow(unrooted_must_root)]
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pub fn new(localName: DOMString,
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prefix: Option<DOMString>,
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document: &Document) -> Root<HTMLTextAreaElement> {
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let element = HTMLTextAreaElement::new_inherited(localName, prefix, document);
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Node::reflect_node(box element, document, HTMLTextAreaElementBinding::Wrap)
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}
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}
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impl HTMLTextAreaElementMethods for HTMLTextAreaElement {
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// TODO A few of these attributes have default values and additional
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// constraints
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// https://html.spec.whatwg.org/multipage/#dom-textarea-cols
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make_uint_getter!(Cols, "cols", DEFAULT_COLS);
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// https://html.spec.whatwg.org/multipage/#dom-textarea-cols
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make_limited_uint_setter!(SetCols, "cols", DEFAULT_COLS);
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// https://html.spec.whatwg.org/multipage/#dom-fe-disabled
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make_bool_getter!(Disabled);
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// https://html.spec.whatwg.org/multipage/#dom-fe-disabled
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make_bool_setter!(SetDisabled, "disabled");
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// https://html.spec.whatwg.org/multipage/#dom-fae-form
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fn GetForm(&self) -> Option<Root<HTMLFormElement>> {
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self.form_owner()
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}
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// https://html.spec.whatwg.org/multipage/#attr-fe-name
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make_getter!(Name);
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// https://html.spec.whatwg.org/multipage/#attr-fe-name
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make_setter!(SetName, "name");
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// https://html.spec.whatwg.org/multipage/#dom-textarea-placeholder
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make_getter!(Placeholder);
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// https://html.spec.whatwg.org/multipage/#dom-textarea-placeholder
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make_setter!(SetPlaceholder, "placeholder");
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// https://html.spec.whatwg.org/multipage/#attr-textarea-readonly
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make_bool_getter!(ReadOnly);
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// https://html.spec.whatwg.org/multipage/#attr-textarea-readonly
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make_bool_setter!(SetReadOnly, "readonly");
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// https://html.spec.whatwg.org/multipage/#dom-textarea-required
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make_bool_getter!(Required);
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// https://html.spec.whatwg.org/multipage/#dom-textarea-required
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make_bool_setter!(SetRequired, "required");
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// https://html.spec.whatwg.org/multipage/#dom-textarea-rows
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make_uint_getter!(Rows, "rows", DEFAULT_ROWS);
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// https://html.spec.whatwg.org/multipage/#dom-textarea-rows
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make_limited_uint_setter!(SetRows, "rows", DEFAULT_ROWS);
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// https://html.spec.whatwg.org/multipage/#dom-textarea-wrap
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make_getter!(Wrap);
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// https://html.spec.whatwg.org/multipage/#dom-textarea-wrap
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make_setter!(SetWrap, "wrap");
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// https://html.spec.whatwg.org/multipage/#dom-textarea-type
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fn Type(&self) -> DOMString {
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"textarea".to_owned()
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}
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// https://html.spec.whatwg.org/multipage/#dom-textarea-defaultvalue
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fn DefaultValue(&self) -> DOMString {
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let node = NodeCast::from_ref(self);
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node.GetTextContent().unwrap()
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}
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// https://html.spec.whatwg.org/multipage/#dom-textarea-defaultvalue
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fn SetDefaultValue(&self, value: DOMString) {
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let node = NodeCast::from_ref(self);
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node.SetTextContent(Some(value));
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// if the element's dirty value flag is false, then the element's
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// raw value must be set to the value of the element's textContent IDL attribute
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if !self.value_changed.get() {
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self.reset();
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}
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}
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// https://html.spec.whatwg.org/multipage/#dom-textarea-value
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fn Value(&self) -> DOMString {
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self.textinput.borrow().get_content()
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}
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// https://html.spec.whatwg.org/multipage/#dom-textarea-value
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fn SetValue(&self, value: DOMString) {
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// TODO move the cursor to the end of the field
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self.textinput.borrow_mut().set_content(value);
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self.value_changed.set(true);
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self.force_relayout();
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}
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}
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impl HTMLTextAreaElement {
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// https://html.spec.whatwg.org/multipage/#concept-fe-mutable
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pub fn mutable(&self) -> bool {
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// https://html.spec.whatwg.org/multipage/#the-textarea-element:concept-fe-mutable
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!(self.Disabled() || self.ReadOnly())
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}
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pub fn reset(&self) {
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// https://html.spec.whatwg.org/multipage/#the-textarea-element:concept-form-reset-control
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self.SetValue(self.DefaultValue());
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self.value_changed.set(false);
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}
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}
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impl HTMLTextAreaElement {
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fn force_relayout(&self) {
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let doc = document_from_node(self);
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let node = NodeCast::from_ref(self);
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doc.r().content_changed(node, NodeDamage::OtherNodeDamage)
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}
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fn dispatch_change_event(&self) {
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let window = window_from_node(self);
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let window = window.r();
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let event = Event::new(GlobalRef::Window(window),
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"input".to_owned(),
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EventBubbles::DoesNotBubble,
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EventCancelable::NotCancelable);
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let target = EventTargetCast::from_ref(self);
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target.dispatch_event(event.r());
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}
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}
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impl VirtualMethods for HTMLTextAreaElement {
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fn super_type<'b>(&'b self) -> Option<&'b VirtualMethods> {
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let htmlelement: &HTMLElement = HTMLElementCast::from_ref(self);
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Some(htmlelement as &VirtualMethods)
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}
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fn attribute_mutated(&self, attr: &Attr, mutation: AttributeMutation) {
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self.super_type().unwrap().attribute_mutated(attr, mutation);
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match attr.local_name() {
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&atom!(disabled) => {
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let node = NodeCast::from_ref(self);
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match mutation {
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AttributeMutation::Set(_) => {
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node.set_disabled_state(true);
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node.set_enabled_state(false);
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},
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AttributeMutation::Removed => {
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node.set_disabled_state(false);
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node.set_enabled_state(true);
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node.check_ancestors_disabled_state_for_form_control();
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}
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}
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},
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&atom!(cols) => {
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let cols = mutation.new_value(attr).map(|value| {
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value.as_uint()
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});
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self.cols.set(cols.unwrap_or(DEFAULT_COLS));
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},
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&atom!(rows) => {
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let rows = mutation.new_value(attr).map(|value| {
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value.as_uint()
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});
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self.rows.set(rows.unwrap_or(DEFAULT_ROWS));
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},
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_ => {},
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}
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}
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fn bind_to_tree(&self, tree_in_doc: bool) {
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if let Some(ref s) = self.super_type() {
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s.bind_to_tree(tree_in_doc);
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}
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let node = NodeCast::from_ref(self);
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node.check_ancestors_disabled_state_for_form_control();
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}
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fn parse_plain_attribute(&self, name: &Atom, value: DOMString) -> AttrValue {
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match name {
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&atom!("cols") => AttrValue::from_limited_u32(value, DEFAULT_COLS),
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&atom!("rows") => AttrValue::from_limited_u32(value, DEFAULT_ROWS),
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_ => self.super_type().unwrap().parse_plain_attribute(name, value),
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}
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}
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fn unbind_from_tree(&self, tree_in_doc: bool) {
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if let Some(ref s) = self.super_type() {
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s.unbind_from_tree(tree_in_doc);
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}
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let node = NodeCast::from_ref(self);
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if node.ancestors().any(|ancestor| ancestor.r().is_htmlfieldsetelement()) {
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node.check_ancestors_disabled_state_for_form_control();
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} else {
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node.check_disabled_attribute();
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}
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}
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fn children_changed(&self, mutation: &ChildrenMutation) {
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if let Some(ref s) = self.super_type() {
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s.children_changed(mutation);
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}
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if !self.value_changed.get() {
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self.reset();
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}
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}
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// copied and modified from htmlinputelement.rs
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fn handle_event(&self, event: &Event) {
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if let Some(s) = self.super_type() {
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s.handle_event(event);
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}
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if &*event.Type() == "click" && !event.DefaultPrevented() {
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//TODO: set the editing position for text inputs
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let doc = document_from_node(self);
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doc.r().request_focus(ElementCast::from_ref(self));
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} else if &*event.Type() == "keydown" && !event.DefaultPrevented() {
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let keyevent: Option<&KeyboardEvent> = KeyboardEventCast::to_ref(event);
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keyevent.map(|kevent| {
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match self.textinput.borrow_mut().handle_keydown(kevent) {
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KeyReaction::TriggerDefaultAction => (),
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KeyReaction::DispatchInput => {
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self.value_changed.set(true);
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if event.IsTrusted() {
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let window = window_from_node(self);
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let window = window.r();
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let chan = window.script_chan();
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let handler = Trusted::new(window.get_cx(), self, chan.clone());
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let dispatcher = ChangeEventRunnable {
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element: handler,
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};
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let _ = chan.send(CommonScriptMsg::RunnableMsg(InputEvent, box dispatcher));
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}
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self.force_relayout();
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}
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KeyReaction::RedrawSelection => {
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self.force_relayout();
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}
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KeyReaction::Nothing => (),
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}
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});
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}
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}
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}
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impl FormControl for HTMLTextAreaElement {}
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pub struct ChangeEventRunnable {
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element: Trusted<HTMLTextAreaElement>,
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}
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impl Runnable for ChangeEventRunnable {
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fn handler(self: Box<ChangeEventRunnable>) {
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let target = self.element.root();
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target.r().dispatch_change_event();
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}
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}
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