script/dom/html/
htmltableelement.rs

1/* This Source Code Form is subject to the terms of the Mozilla Public
2 * License, v. 2.0. If a copy of the MPL was not distributed with this
3 * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
4
5use std::cell::Cell;
6
7use dom_struct::dom_struct;
8use html5ever::{LocalName, Prefix, QualName, local_name, ns};
9use js::rust::HandleObject;
10use style::attr::{AttrValue, LengthOrPercentageOrAuto, parse_unsigned_integer};
11use style::color::AbsoluteColor;
12
13use crate::dom::attr::Attr;
14use crate::dom::bindings::codegen::Bindings::HTMLCollectionBinding::HTMLCollectionMethods;
15use crate::dom::bindings::codegen::Bindings::HTMLTableElementBinding::HTMLTableElementMethods;
16use crate::dom::bindings::codegen::Bindings::NodeBinding::NodeMethods;
17use crate::dom::bindings::error::{Error, ErrorResult, Fallible};
18use crate::dom::bindings::inheritance::Castable;
19use crate::dom::bindings::root::{Dom, DomRoot, LayoutDom, MutNullableDom};
20use crate::dom::bindings::str::DOMString;
21use crate::dom::document::Document;
22use crate::dom::element::{
23    AttributeMutation, CustomElementCreationMode, Element, ElementCreator, LayoutElementHelpers,
24};
25use crate::dom::html::htmlcollection::{CollectionFilter, HTMLCollection};
26use crate::dom::html::htmlelement::HTMLElement;
27use crate::dom::html::htmltablecaptionelement::HTMLTableCaptionElement;
28use crate::dom::html::htmltablecolelement::HTMLTableColElement;
29use crate::dom::html::htmltablerowelement::HTMLTableRowElement;
30use crate::dom::html::htmltablesectionelement::HTMLTableSectionElement;
31use crate::dom::node::{Node, NodeTraits};
32use crate::dom::virtualmethods::VirtualMethods;
33use crate::script_runtime::CanGc;
34
35#[dom_struct]
36pub(crate) struct HTMLTableElement {
37    htmlelement: HTMLElement,
38    border: Cell<Option<u32>>,
39    cellpadding: Cell<Option<u32>>,
40    cellspacing: Cell<Option<u32>>,
41    tbodies: MutNullableDom<HTMLCollection>,
42}
43
44#[cfg_attr(crown, allow(crown::unrooted_must_root))]
45#[derive(JSTraceable, MallocSizeOf)]
46struct TableRowFilter {
47    sections: Vec<Dom<Node>>,
48}
49
50impl CollectionFilter for TableRowFilter {
51    fn filter(&self, elem: &Element, root: &Node) -> bool {
52        elem.is::<HTMLTableRowElement>() &&
53            (root.is_parent_of(elem.upcast()) ||
54                self.sections
55                    .iter()
56                    .any(|section| section.is_parent_of(elem.upcast())))
57    }
58}
59
60impl HTMLTableElement {
61    fn new_inherited(
62        local_name: LocalName,
63        prefix: Option<Prefix>,
64        document: &Document,
65    ) -> HTMLTableElement {
66        HTMLTableElement {
67            htmlelement: HTMLElement::new_inherited(local_name, prefix, document),
68            border: Cell::new(None),
69            cellpadding: Cell::new(None),
70            cellspacing: Cell::new(None),
71            tbodies: Default::default(),
72        }
73    }
74
75    #[cfg_attr(crown, allow(crown::unrooted_must_root))]
76    pub(crate) fn new(
77        local_name: LocalName,
78        prefix: Option<Prefix>,
79        document: &Document,
80        proto: Option<HandleObject>,
81        can_gc: CanGc,
82    ) -> DomRoot<HTMLTableElement> {
83        let n = Node::reflect_node_with_proto(
84            Box::new(HTMLTableElement::new_inherited(
85                local_name, prefix, document,
86            )),
87            document,
88            proto,
89            can_gc,
90        );
91
92        n.upcast::<Node>().set_weird_parser_insertion_mode();
93        n
94    }
95
96    pub(crate) fn get_border(&self) -> Option<u32> {
97        self.border.get()
98    }
99
100    // https://html.spec.whatwg.org/multipage/#dom-table-thead
101    /// <https://html.spec.whatwg.org/multipage/#dom-table-tfoot>
102    fn get_first_section_of_type(
103        &self,
104        atom: &LocalName,
105    ) -> Option<DomRoot<HTMLTableSectionElement>> {
106        self.upcast::<Node>()
107            .child_elements()
108            .find(|n| n.is::<HTMLTableSectionElement>() && n.local_name() == atom)
109            .and_then(|n| n.downcast().map(DomRoot::from_ref))
110    }
111
112    // https://html.spec.whatwg.org/multipage/#dom-table-thead
113    /// <https://html.spec.whatwg.org/multipage/#dom-table-tfoot>
114    fn set_first_section_of_type<P>(
115        &self,
116        atom: &LocalName,
117        section: Option<&HTMLTableSectionElement>,
118        reference_predicate: P,
119        can_gc: CanGc,
120    ) -> ErrorResult
121    where
122        P: FnMut(&DomRoot<Element>) -> bool,
123    {
124        if let Some(e) = section {
125            if e.upcast::<Element>().local_name() != atom {
126                return Err(Error::HierarchyRequest(None));
127            }
128        }
129
130        self.delete_first_section_of_type(atom, can_gc);
131
132        let node = self.upcast::<Node>();
133
134        if let Some(section) = section {
135            let reference_element = node.child_elements().find(reference_predicate);
136            let reference_node = reference_element.as_ref().map(|e| e.upcast());
137
138            node.InsertBefore(section.upcast(), reference_node, can_gc)?;
139        }
140
141        Ok(())
142    }
143
144    /// <https://html.spec.whatwg.org/multipage/#dom-table-createthead>
145    /// <https://html.spec.whatwg.org/multipage/#dom-table-createtfoot>
146    fn create_section_of_type(
147        &self,
148        atom: &LocalName,
149        can_gc: CanGc,
150    ) -> DomRoot<HTMLTableSectionElement> {
151        if let Some(section) = self.get_first_section_of_type(atom) {
152            return section;
153        }
154
155        let section = Element::create(
156            QualName::new(None, ns!(html), atom.clone()),
157            None,
158            &self.owner_document(),
159            ElementCreator::ScriptCreated,
160            CustomElementCreationMode::Asynchronous,
161            None,
162            can_gc,
163        );
164
165        let section = DomRoot::downcast::<HTMLTableSectionElement>(section).unwrap();
166
167        match *atom {
168            local_name!("thead") => self.SetTHead(Some(&section)),
169            local_name!("tfoot") => self.SetTFoot(Some(&section)),
170            _ => unreachable!("unexpected section type"),
171        }
172        .expect("unexpected section type");
173
174        section
175    }
176
177    /// <https://html.spec.whatwg.org/multipage/#dom-table-deletethead>
178    /// <https://html.spec.whatwg.org/multipage/#dom-table-deletetfoot>
179    fn delete_first_section_of_type(&self, atom: &LocalName, can_gc: CanGc) {
180        if let Some(thead) = self.get_first_section_of_type(atom) {
181            thead.upcast::<Node>().remove_self(can_gc);
182        }
183    }
184
185    fn get_rows(&self) -> TableRowFilter {
186        TableRowFilter {
187            sections: self
188                .upcast::<Node>()
189                .children()
190                .filter_map(|ref node| {
191                    node.downcast::<HTMLTableSectionElement>()
192                        .map(|_| Dom::from_ref(&**node))
193                })
194                .collect(),
195        }
196    }
197}
198
199impl HTMLTableElementMethods<crate::DomTypeHolder> for HTMLTableElement {
200    /// <https://html.spec.whatwg.org/multipage/#dom-table-rows>
201    fn Rows(&self) -> DomRoot<HTMLCollection> {
202        let filter = self.get_rows();
203        HTMLCollection::new(
204            &self.owner_window(),
205            self.upcast(),
206            Box::new(filter),
207            CanGc::note(),
208        )
209    }
210
211    /// <https://html.spec.whatwg.org/multipage/#dom-table-caption>
212    fn GetCaption(&self) -> Option<DomRoot<HTMLTableCaptionElement>> {
213        self.upcast::<Node>().children().find_map(DomRoot::downcast)
214    }
215
216    /// <https://html.spec.whatwg.org/multipage/#dom-table-caption>
217    fn SetCaption(&self, new_caption: Option<&HTMLTableCaptionElement>) -> Fallible<()> {
218        if let Some(ref caption) = self.GetCaption() {
219            caption.upcast::<Node>().remove_self(CanGc::note());
220        }
221
222        if let Some(caption) = new_caption {
223            let node = self.upcast::<Node>();
224            node.InsertBefore(
225                caption.upcast(),
226                node.GetFirstChild().as_deref(),
227                CanGc::note(),
228            )?;
229        }
230
231        Ok(())
232    }
233
234    /// <https://html.spec.whatwg.org/multipage/#dom-table-createcaption>
235    fn CreateCaption(&self, can_gc: CanGc) -> DomRoot<HTMLTableCaptionElement> {
236        match self.GetCaption() {
237            Some(caption) => caption,
238            None => {
239                let caption = Element::create(
240                    QualName::new(None, ns!(html), local_name!("caption")),
241                    None,
242                    &self.owner_document(),
243                    ElementCreator::ScriptCreated,
244                    CustomElementCreationMode::Asynchronous,
245                    None,
246                    can_gc,
247                );
248                let caption = DomRoot::downcast::<HTMLTableCaptionElement>(caption).unwrap();
249
250                self.SetCaption(Some(&caption))
251                    .expect("Generated caption is invalid");
252                caption
253            },
254        }
255    }
256
257    /// <https://html.spec.whatwg.org/multipage/#dom-table-deletecaption>
258    fn DeleteCaption(&self) {
259        if let Some(caption) = self.GetCaption() {
260            caption.upcast::<Node>().remove_self(CanGc::note());
261        }
262    }
263
264    /// <https://html.spec.whatwg.org/multipage/#dom-table-thead>
265    fn GetTHead(&self) -> Option<DomRoot<HTMLTableSectionElement>> {
266        self.get_first_section_of_type(&local_name!("thead"))
267    }
268
269    /// <https://html.spec.whatwg.org/multipage/#dom-table-thead>
270    fn SetTHead(&self, thead: Option<&HTMLTableSectionElement>) -> ErrorResult {
271        self.set_first_section_of_type(
272            &local_name!("thead"),
273            thead,
274            |n| !n.is::<HTMLTableCaptionElement>() && !n.is::<HTMLTableColElement>(),
275            CanGc::note(),
276        )
277    }
278
279    /// <https://html.spec.whatwg.org/multipage/#dom-table-createthead>
280    fn CreateTHead(&self, can_gc: CanGc) -> DomRoot<HTMLTableSectionElement> {
281        self.create_section_of_type(&local_name!("thead"), can_gc)
282    }
283
284    /// <https://html.spec.whatwg.org/multipage/#dom-table-deletethead>
285    fn DeleteTHead(&self) {
286        self.delete_first_section_of_type(&local_name!("thead"), CanGc::note())
287    }
288
289    /// <https://html.spec.whatwg.org/multipage/#dom-table-tfoot>
290    fn GetTFoot(&self) -> Option<DomRoot<HTMLTableSectionElement>> {
291        self.get_first_section_of_type(&local_name!("tfoot"))
292    }
293
294    /// <https://html.spec.whatwg.org/multipage/#dom-table-tfoot>
295    fn SetTFoot(&self, tfoot: Option<&HTMLTableSectionElement>) -> ErrorResult {
296        self.set_first_section_of_type(
297            &local_name!("tfoot"),
298            tfoot,
299            |n| {
300                if n.is::<HTMLTableCaptionElement>() || n.is::<HTMLTableColElement>() {
301                    return false;
302                }
303
304                if n.is::<HTMLTableSectionElement>() {
305                    let name = n.local_name();
306                    if name == &local_name!("thead") || name == &local_name!("tbody") {
307                        return false;
308                    }
309                }
310
311                true
312            },
313            CanGc::note(),
314        )
315    }
316
317    /// <https://html.spec.whatwg.org/multipage/#dom-table-createtfoot>
318    fn CreateTFoot(&self, can_gc: CanGc) -> DomRoot<HTMLTableSectionElement> {
319        self.create_section_of_type(&local_name!("tfoot"), can_gc)
320    }
321
322    /// <https://html.spec.whatwg.org/multipage/#dom-table-deletetfoot>
323    fn DeleteTFoot(&self) {
324        self.delete_first_section_of_type(&local_name!("tfoot"), CanGc::note())
325    }
326
327    /// <https://html.spec.whatwg.org/multipage/#dom-table-tbodies>
328    fn TBodies(&self) -> DomRoot<HTMLCollection> {
329        self.tbodies.or_init(|| {
330            HTMLCollection::new_with_filter_fn(
331                &self.owner_window(),
332                self.upcast(),
333                |element, root| {
334                    element.is::<HTMLTableSectionElement>() &&
335                        element.local_name() == &local_name!("tbody") &&
336                        element.upcast::<Node>().GetParentNode().as_deref() == Some(root)
337                },
338                CanGc::note(),
339            )
340        })
341    }
342
343    /// <https://html.spec.whatwg.org/multipage/#dom-table-createtbody>
344    fn CreateTBody(&self, can_gc: CanGc) -> DomRoot<HTMLTableSectionElement> {
345        let tbody = Element::create(
346            QualName::new(None, ns!(html), local_name!("tbody")),
347            None,
348            &self.owner_document(),
349            ElementCreator::ScriptCreated,
350            CustomElementCreationMode::Asynchronous,
351            None,
352            can_gc,
353        );
354        let tbody = DomRoot::downcast::<HTMLTableSectionElement>(tbody).unwrap();
355        let node = self.upcast::<Node>();
356        let last_tbody = node
357            .rev_children()
358            .filter_map(DomRoot::downcast::<Element>)
359            .find(|n| n.is::<HTMLTableSectionElement>() && n.local_name() == &local_name!("tbody"));
360        let reference_element = last_tbody.and_then(|t| t.upcast::<Node>().GetNextSibling());
361
362        node.InsertBefore(tbody.upcast(), reference_element.as_deref(), can_gc)
363            .expect("Insertion failed");
364        tbody
365    }
366
367    /// <https://html.spec.whatwg.org/multipage/#dom-table-insertrow>
368    fn InsertRow(&self, index: i32, can_gc: CanGc) -> Fallible<DomRoot<HTMLTableRowElement>> {
369        let rows = self.Rows();
370        let number_of_row_elements = rows.Length();
371
372        if index < -1 || index > number_of_row_elements as i32 {
373            return Err(Error::IndexSize(None));
374        }
375
376        let new_row = Element::create(
377            QualName::new(None, ns!(html), local_name!("tr")),
378            None,
379            &self.owner_document(),
380            ElementCreator::ScriptCreated,
381            CustomElementCreationMode::Asynchronous,
382            None,
383            can_gc,
384        );
385        let new_row = DomRoot::downcast::<HTMLTableRowElement>(new_row).unwrap();
386        let node = self.upcast::<Node>();
387
388        if number_of_row_elements == 0 {
389            // append new row to last or new tbody in table
390            if let Some(last_tbody) = node
391                .rev_children()
392                .filter_map(DomRoot::downcast::<Element>)
393                .find(|n| {
394                    n.is::<HTMLTableSectionElement>() && n.local_name() == &local_name!("tbody")
395                })
396            {
397                last_tbody
398                    .upcast::<Node>()
399                    .AppendChild(new_row.upcast::<Node>(), can_gc)
400                    .expect("InsertRow failed to append first row.");
401            } else {
402                let tbody = self.CreateTBody(can_gc);
403                node.AppendChild(tbody.upcast(), can_gc)
404                    .expect("InsertRow failed to append new tbody.");
405
406                tbody
407                    .upcast::<Node>()
408                    .AppendChild(new_row.upcast::<Node>(), can_gc)
409                    .expect("InsertRow failed to append first row.");
410            }
411        } else if index == number_of_row_elements as i32 || index == -1 {
412            // append new row to parent of last row in table
413            let last_row = rows
414                .Item(number_of_row_elements - 1)
415                .expect("InsertRow failed to find last row in table.");
416
417            let last_row_parent = last_row
418                .upcast::<Node>()
419                .GetParentNode()
420                .expect("InsertRow failed to find parent of last row in table.");
421
422            last_row_parent
423                .upcast::<Node>()
424                .AppendChild(new_row.upcast::<Node>(), can_gc)
425                .expect("InsertRow failed to append last row.");
426        } else {
427            // insert new row before the index-th row in rows using the same parent
428            let ith_row = rows
429                .Item(index as u32)
430                .expect("InsertRow failed to find a row in table.");
431
432            let ith_row_parent = ith_row
433                .upcast::<Node>()
434                .GetParentNode()
435                .expect("InsertRow failed to find parent of a row in table.");
436
437            ith_row_parent
438                .upcast::<Node>()
439                .InsertBefore(
440                    new_row.upcast::<Node>(),
441                    Some(ith_row.upcast::<Node>()),
442                    can_gc,
443                )
444                .expect("InsertRow failed to append row");
445        }
446
447        Ok(new_row)
448    }
449
450    /// <https://html.spec.whatwg.org/multipage/#dom-table-deleterow>
451    fn DeleteRow(&self, mut index: i32) -> Fallible<()> {
452        let rows = self.Rows();
453        let num_rows = rows.Length() as i32;
454
455        // Step 1: If index is less than −1 or greater than or equal to the number of elements
456        // in the rows collection, then throw an "IndexSizeError".
457        if !(-1..num_rows).contains(&index) {
458            return Err(Error::IndexSize(None));
459        }
460
461        let num_rows = rows.Length() as i32;
462
463        // Step 2: If index is −1, then remove the last element in the rows collection from its
464        // parent, or do nothing if the rows collection is empty.
465        if index == -1 {
466            index = num_rows - 1;
467        }
468
469        if num_rows == 0 {
470            return Ok(());
471        }
472
473        // Step 3: Otherwise, remove the indexth element in the rows collection from its parent.
474        DomRoot::upcast::<Node>(rows.Item(index as u32).unwrap()).remove_self(CanGc::note());
475
476        Ok(())
477    }
478
479    // https://html.spec.whatwg.org/multipage/#dom-table-bgcolor
480    make_getter!(BgColor, "bgcolor");
481
482    // https://html.spec.whatwg.org/multipage/#dom-table-bgcolor
483    make_legacy_color_setter!(SetBgColor, "bgcolor");
484
485    // <https://html.spec.whatwg.org/multipage/#dom-table-width>
486    make_getter!(Width, "width");
487
488    // <https://html.spec.whatwg.org/multipage/#dom-table-width>
489    make_nonzero_dimension_setter!(SetWidth, "width");
490}
491
492pub(crate) trait HTMLTableElementLayoutHelpers {
493    fn get_background_color(self) -> Option<AbsoluteColor>;
494    fn get_border(self) -> Option<u32>;
495    fn get_cellpadding(self) -> Option<u32>;
496    fn get_cellspacing(self) -> Option<u32>;
497    fn get_width(self) -> LengthOrPercentageOrAuto;
498    fn get_height(self) -> LengthOrPercentageOrAuto;
499}
500
501impl HTMLTableElementLayoutHelpers for LayoutDom<'_, HTMLTableElement> {
502    fn get_background_color(self) -> Option<AbsoluteColor> {
503        self.upcast::<Element>()
504            .get_attr_for_layout(&ns!(), &local_name!("bgcolor"))
505            .and_then(AttrValue::as_color)
506            .cloned()
507    }
508
509    fn get_border(self) -> Option<u32> {
510        (self.unsafe_get()).border.get()
511    }
512
513    fn get_cellpadding(self) -> Option<u32> {
514        (self.unsafe_get()).cellpadding.get()
515    }
516
517    fn get_cellspacing(self) -> Option<u32> {
518        (self.unsafe_get()).cellspacing.get()
519    }
520
521    fn get_width(self) -> LengthOrPercentageOrAuto {
522        self.upcast::<Element>()
523            .get_attr_for_layout(&ns!(), &local_name!("width"))
524            .map(AttrValue::as_dimension)
525            .cloned()
526            .unwrap_or(LengthOrPercentageOrAuto::Auto)
527    }
528
529    fn get_height(self) -> LengthOrPercentageOrAuto {
530        self.upcast::<Element>()
531            .get_attr_for_layout(&ns!(), &local_name!("height"))
532            .map(AttrValue::as_dimension)
533            .cloned()
534            .unwrap_or(LengthOrPercentageOrAuto::Auto)
535    }
536}
537
538impl VirtualMethods for HTMLTableElement {
539    fn super_type(&self) -> Option<&dyn VirtualMethods> {
540        Some(self.upcast::<HTMLElement>() as &dyn VirtualMethods)
541    }
542
543    fn attribute_mutated(&self, attr: &Attr, mutation: AttributeMutation, can_gc: CanGc) {
544        self.super_type()
545            .unwrap()
546            .attribute_mutated(attr, mutation, can_gc);
547        match *attr.local_name() {
548            local_name!("border") => {
549                // According to HTML5 § 14.3.9, invalid values map to 1px.
550                self.border.set(
551                    mutation
552                        .new_value(attr)
553                        .map(|value| parse_unsigned_integer(value.chars()).unwrap_or(1)),
554                );
555            },
556            local_name!("cellpadding") => {
557                self.cellpadding.set(
558                    mutation
559                        .new_value(attr)
560                        .and_then(|value| parse_unsigned_integer(value.chars()).ok()),
561                );
562            },
563            local_name!("cellspacing") => {
564                self.cellspacing.set(
565                    mutation
566                        .new_value(attr)
567                        .and_then(|value| parse_unsigned_integer(value.chars()).ok()),
568                );
569            },
570            _ => {},
571        }
572    }
573
574    fn attribute_affects_presentational_hints(&self, attr: &Attr) -> bool {
575        match attr.local_name() {
576            &local_name!("width") | &local_name!("height") => true,
577            _ => self
578                .super_type()
579                .unwrap()
580                .attribute_affects_presentational_hints(attr),
581        }
582    }
583
584    fn parse_plain_attribute(&self, local_name: &LocalName, value: DOMString) -> AttrValue {
585        match *local_name {
586            local_name!("border") => AttrValue::from_u32(value.into(), 1),
587            local_name!("width") => AttrValue::from_nonzero_dimension(value.into()),
588            local_name!("height") => AttrValue::from_dimension(value.into()),
589            local_name!("bgcolor") => AttrValue::from_legacy_color(value.into()),
590            _ => self
591                .super_type()
592                .unwrap()
593                .parse_plain_attribute(local_name, value),
594        }
595    }
596}
script/dom/html/htmltableelement.rs

script/dom/html/
htmltableelement.rs
