Remove dart:html page (#6345)

Fixes #6314

---------

Co-authored-by: Parker Lougheed <parlough@gmail.com>

Author: MaryaBelanger

examples/misc/test/language_tour/browser_test.dart

@@ -1,10 +1,13 @@
+// ignore_for_file: unused_import
+
 @Tags(['browser'])
 @TestOn('browser')
 library;
 
-// #docregion dart-html-import
+// #docregion dart-js-interop-import
+import 'dart:js_interop';
+// #enddocregion dart-js-interop-import
 import 'dart:html';
-// #enddocregion dart-html-import
 // #docregion package-import
 import 'package:test/test.dart';
 // #enddocregion package-import

firebase.json

@@ -140,14 +140,14 @@
       { "source": "/docs/spec/deferred-loading", "destination": "/language/libraries#lazily-loading-a-library", "type": 301 },
       { "source": "/docs/spec{,/**}", "destination": "/resources/language/spec", "type": 301 },
       { "source": "/docs/technical-overview{,/**}", "destination": "/overview", "type": 301 },
-      { "source": "/docs/tutorials/add-elements", "destination": "/library/dart-html", "type": 301 },
+      { "source": "/docs/tutorials/add-elements", "destination": "/interop/js-interop/package-web", "type": 301 },
       { "source": "/docs/tutorials/cmdline", "destination": "/tutorials/server/cmdline", "type": 301 },
-      { "source": "/docs/tutorials/connect-dart-html", "destination": "/library/dart-html", "type": 301 },
+      { "source": "/docs/tutorials/connect-dart-html", "destination": "/interop/js-interop/package-web", "type": 301 },
       { "source": "/docs/tutorials/fetchdata", "destination": "/tutorials/server/fetch-data", "type": 301 },
       { "source": "/docs/tutorials/futures", "destination": "/libraries/async/async-await", "type": 301 },
       { "source": "/docs/tutorials/get-started", "destination": "/tutorials/server/get-started", "type": 301 },
       { "source": "/docs/tutorials/httpserver", "destination": "/tutorials/server/httpserver", "type": 301 },
-      { "source": "/docs/tutorials/remove-elements", "destination": "/library/dart-html", "type": 301 },
+      { "source": "/docs/tutorials/remove-elements", "destination": "/interop/js-interop/package-web", "type": 301 },
       { "source": "/docs/tutorials/shared-pkgs", "destination": "/tools/pub/packages", "type": 301 },
       { "source": "/docs/tutorials/streams", "destination": "/libraries/async/using-streams", "type": 301 },
       { "source": "/docs/tutorials{,/**}", "destination": "/tutorials", "type": 301 },
@@ -436,7 +436,7 @@
       { "source": "/tutorials/web/fetch-data", "destination": "/tutorials/server/fetch-data", "type": 301 },
       { "source": "/tutorials/web/get-started", "destination": "/web/get-started", "type": 301 },
       { "source": "/tutorials/web/low-level-html", "destination": "/web/get-started", "type": 301 },
-      { "source": "/tutorials/web/low-level-html/:rest*", "destination": "/libraries/dart-html", "type": 301 },
+      { "source": "/tutorials/web/low-level-html/:rest*", "destination": "/interop/js-interop/package-web", "type": 301 },
       { "source": "/web/dart-2", "destination": "/tools/webdev", "type": 301 },
       { "source": "/web/js-interop", "destination": "/interop/js-interop", "type": 301 },
       { "source": "/{docs,tools}/{pub-package-manager,pub/cmd,pub/tools/pub}/glossary", "destination": "/tools/pub/glossary", "type": 301 }

src/_data/sidenav.yml

@@ -114,8 +114,9 @@
       permalink: /libraries/dart-convert
     - title: dart:io
       permalink: /libraries/dart-io
-    - title: dart:html
-      permalink: /libraries/dart-html
+    - title: dart:js_interop
+      permalink: /interop/js-interop
+      match-page-url-exactly: true
     - divider
     - title: Iterable collections
       permalink: /libraries/collections/iterables

src/content/interop/js-interop/index.md

@@ -2,6 +2,9 @@
 title: JavaScript interoperability
 short-title: JS interop
 description: Integrate JavaScript code into your Dart web app.
+nextpage:
+  url: /interop/js-interop/usage
+  title: Usage
 ---
 
 The [Dart web platform](/overview#web-platform) supports communication with

src/content/interop/js-interop/js-types.md

@@ -1,6 +1,12 @@
 ---
 title: JS types
 description: Usage information about the core types in JS interop.
+prevpage:
+  url: /interop/js-interop/usage
+  title: Usage
+nextpage:
+  url: /interop/js-interop/tutorials
+  title: JS interop tutorials
 ---
 
 Dart values and JS values belong to separate language domains. When compiling to

src/content/interop/js-interop/package-web.md

@@ -1,6 +1,9 @@
 ---
 title: Migrate to package:web
 description: How to migrate web interop code from dart:html to package:web.
+prevpage:
+  url: /interop/js-interop/past-js-interop
+  title: Past JS interop
 ---
 
 Dart's [`package:web`][] exposes access to browser APIs,

src/content/interop/js-interop/past-js-interop.md

@@ -1,6 +1,12 @@
 ---
 title: Past JS interop
 description: Archive of Dart's previous JS interop support.
+prevpage:
+  url: /interop/js-interop/tutorials
+  title: JS interop tutorials
+nextpage:
+  url: /interop/js-interop/package-web/
+  title: Migrate to package:web
 ---
 
 :::warning

src/content/interop/js-interop/tutorials.md

@@ -1,6 +1,12 @@
 ---
 title: JS interop tutorials
 description: Tutorials for common JavaScript interop use cases in Dart.
+prevpage:
+  url: /interop/js-interop/js-types
+  title: JS types
+nextpage:
+  url: /interop/js-interop/past-js-interop
+  title: Past JS interop
 ---
 
 ## Tutorials

src/content/interop/js-interop/usage.md

@@ -1,6 +1,12 @@
 ---
 title: Usage
 description: How to declare and use JS interop members.
+prevpage:
+  url: /interop/js-interop/
+  title: JS interop
+nextpage:
+  url: /interop/js-interop/js-types
+  title: JS types
 ---
 
 JS interop provides the mechanisms to interact with JavaScript APIs from Dart.

src/content/language/libraries.md

@@ -31,12 +31,12 @@ like `public` or `private`, consult
 Use `import` to specify how a namespace from one library is used in the
 scope of another library.
 
-For example, Dart web apps generally use the [dart:html][]
+For example, Dart web apps generally use the [`dart:js_interop`][]
 library, which they can import like this:
 
-<?code-excerpt "misc/test/language_tour/browser_test.dart (dart-html-import)"?>
+<?code-excerpt "misc/test/language_tour/browser_test.dart (dart-js-interop-import)"?>
 ```dart
-import 'dart:html';
+import 'dart:js_interop';
 ```
 
 The only required argument to `import` is a URI specifying the
@@ -178,6 +178,6 @@ for advice on how to implement a package, including:
 * How to use conditional imports and exports to implement
   a library that supports multiple platforms.
 
-[dart:html]: {{site.dart-api}}/dart-html
+[`dart:js_interop`]: {{site.dart-api}}/dart-js_interop/dart-js_interop-library.html
 [doc comments]: /effective-dart/documentation#consider-writing-a-library-level-doc-comment
 [metadata annotations]: /language/metadata

src/content/libraries/dart-html.md

@@ -7,10 +7,8 @@ prevpage:
 ---
 
 :::warning
-`dart:html` is being replaced with [`package:web`][].
-Package maintainers should migrate to `package:web` as
-soon as possible to be compatible with Wasm.
-Read the [Migrate to package:web][] page for guidance.
+The `dart:html` library is deprecated.
+Instead, use [`dart:js_interop`][] and [`package:web`][].
 :::
 
 Use the [dart:html][] library to program the browser, manipulate objects and
@@ -36,6 +34,7 @@ To use the HTML library in your web app, import dart:html:
 import 'dart:html';
 ```
 
+[`dart:js_interop`]: /interop/js-interop
 [`package:web`]: {{site.pub-pkg}}/web
 [Migrate to package:web]: /interop/js-interop/package-web
 

src/content/libraries/dart-io.md

@@ -5,8 +5,8 @@ prevpage:
   url: /libraries/dart-convert
   title: dart:convert
 nextpage:
-  url: /libraries/dart-html
-  title: dart:html
+  url: /interop/js-interop/
+  title: dart:js_interop
 ---
 
 <?code-excerpt plaster="none"?>

src/content/libraries/index.md

@@ -46,9 +46,9 @@ consult the [Dart API reference.][Dart API]
 : I/O for programs that can use the Dart VM,
   including Flutter apps, servers, and command-line scripts.
 
-[dart:html](/libraries/dart-html)
-: DOM and other APIs for browser-based apps.
-  We now recommend using `package:web` over `dart:html`.
+[dart:js_interop](/interop/js-interop)
+: APIs for interop with the web platform.
+  Along with `package:web`,`dart:js_interop` replaces `dart:html`.
 
 
 As mentioned, these pages are just an overview;

src/content/overview.md

@@ -148,7 +148,7 @@ providing essentials for many everyday programming tasks:
   (`dart:isolate`)
 * HTML elements and other resources for web-based applications that need to
   interact with the browser and the Document Object Model (DOM)
-  (`dart:html`)
+  (`dart:js_interop` and `package:web`)
 
 Beyond the core libraries, many APIs are provided through
 a comprehensive set of packages.