Commit Graph

4365 Commits

Author SHA1 Message Date
cindygk efe02d8b04 docs: update contributors.json (#41284)
PR Close #41284
2021-03-22 08:56:47 -07:00
Pete Bacon Darwin 5bc0a472bd refactor(docs-infra): remove image size exclusion list (#41292)
In #41253 the size of contributor images was limited, but
some images were already too large. So an exclusion list
was added. These images have now been reduced, so
the exclusion list is no longer needed.

The files were reduced by a combination of running them through the
https://tinyjpg.com/ online service and manually setting their size to
168px wide or tall using the MacOS Image Preview app.

PR Close #41292
2021-03-22 08:55:53 -07:00
Pete Bacon Darwin 2548921a19 docs: reduce the file size of contributor images (#41292)
Fixes #41287

PR Close #41292
2021-03-22 08:55:53 -07:00
MariosRadis ed5bfe8173 docs: simplify deleteHero method in tutorial (#41303)
Fixes #41233

PR Close #41303
2021-03-22 08:54:53 -07:00
Yvonne Allen b012a56615 docs: specify date format for reviewed tag (#41269)
Specify a date format for the reviewed tag and provided an example.

PR Close #41269
2021-03-19 12:38:50 -07:00
Andrew Kushnir 2ccb579e06 feat(docs-infra): add profile picture size check (#41253)
This commit updates the logic that validates contributors.json data and introduces a new check that verifies that profile images don't exceed specified limit.

PR Close #41253
2021-03-19 12:37:21 -07:00
Pete Bacon Darwin fbdb19c263 docs(localize): expose documentation for the `@angular/localize` package (#40317)
PR Close #40317
2021-03-19 12:36:10 -07:00
George Kalpakas 655507012b build(docs-infra): upgrade cli command docs sources to b6effecae (#41259)
Updating [angular#master](https://github.com/angular/angular/tree/master) from
[cli-builds#master](https://github.com/angular/cli-builds/tree/master).

##
Relevant changes in
[commit range](5f5448301...b6effecae):

**Modified**
- help/extract-i18n.json

PR Close #41259
2021-03-18 10:02:54 -07:00
Samuel R ac9a250fc4 docs: update link to schematics schema (#41258)
PREVIOUSLY:
The https://angular.io/guide/schematics#configuring-cli-schematics page has a link to "app" schematic specifically and to a version 7.

NOW:
The https://angular.io/guide/schematics#configuring-cli-schematics page links to the latest version of schematics (all of them, not just the "app" schematic) to let the reader snoop around a bit.
PR Close #41258
2021-03-18 10:02:25 -07:00
Manuele Dones ac9c4289e0 docs: replace deprecated karma-coverage-istanbul-reporter (#41246)
'karma-coverage-istanbul-reporter' usage has been deprecated since version 11.
Please install 'karma-coverage' and update 'karma.conf.js.' For more info, see https://github.com/karma-runner/karma-coverage/blob/master/README.md

PR Close #41246
2021-03-18 10:01:57 -07:00
George Kalpakas e23994191c docs: make `HeroService#gerHero()` in `toh-pt5` compatible with TS strict mode (#41234)
Fixes #41207

PR Close #41234
2021-03-18 10:00:52 -07:00
George Kalpakas 6d47b05b5b docs: align `toh-pt5` code with `toh-pt4` (#41234)
This commit aligns the code of `HeroService` `getHeroes()` and
`getHero()` methods in `toh-pt5` with that of `toh-pt4`. I.e. it applies
the changes from #40419 to `toh-pt5`.

PR Close #41234
2021-03-18 10:00:52 -07:00
Preston Lamb 81d2aabcbb docs: add preston lamb to GDE resources (#41204)
PR Close #41204
2021-03-18 09:58:07 -07:00
Kristiyan Kostadinov 59ef40988e feat(core): support TypeScript 4.2 (#41158)
Updates the repo to TypeScript 4.2 and tslib 2.1.0.

PR Close #41158
2021-03-17 09:10:25 -07:00
Alan Agius 98de4cb1bf docs: add deprecation note next to IE 11 in browser-support page (#41147)
Add a deprecation note, that IE 11 will be deprecated in version 12.

See angular/angular-cli#20225 and https://techcommunity.microsoft.com/t5/microsoft-365-blog/microsoft-365-apps-say-farewell-to-internet-explorer-11-and/ba-p/1591666

PR Close #41147
2021-03-17 09:07:37 -07:00
George Kalpakas 6bc22a7557 build(docs-infra): upgrade cli command docs sources to 5f5448301 (#41239)
Updating [angular#master](https://github.com/angular/angular/tree/master) from
[cli-builds#master](https://github.com/angular/cli-builds/tree/master).

##
Relevant changes in
[commit range](46538eea1...5f5448301):

**Modified**
- help/build.json
- help/lint.json

PR Close #41239
2021-03-17 09:06:37 -07:00
Alan Agius 95aa0cf04c docs: update assets configuration to include `followSymlinks` option (#41238)
The `followSymlinks` is not listed in the assets configuration section.

PR Close #41238
2021-03-17 09:04:15 -07:00
Teri Glover 0f0f34fb8a docs: minor update to what is Angular topic (#41123)
PR Close #41123
2021-03-17 09:01:35 -07:00
Gérôme Grignon 7d5b60e409 docs: remove unused attribute (#41211)
Fixes #41210

PR Close #41211
2021-03-16 14:48:52 -07:00
George Kalpakas 6bdad5ef6c build(docs-infra): upgrade cli command docs sources to 46538eea1 (#41227)
Updating [angular#master](https://github.com/angular/angular/tree/master) from
[cli-builds#master](https://github.com/angular/cli-builds/tree/master).

##
Relevant changes in
[commit range](edc1d0bc7...46538eea1):

**Modified**
- help/generate.json
- help/new.json

PR Close #41227
2021-03-16 11:04:21 -07:00
Alan Agius 7d6db009e9 docs: update docs to reflect production mode by default (#41173)
In CLI version 12, we introduced the concept of production builds by default.

With this change we update the documentation to reflect the changes.

More information about the change can be found https://github.com/angular/angular-cli/pull/20128

PR Close #41173
2021-03-16 09:32:44 -07:00
David Shevitz cc75e1d17b docs: add contributors guide to aio (#41061)
PR Close #41061
2021-03-15 12:16:37 -07:00
stefanos- cfaf425314 docs: add book about testing to resources (#41159)
PR Close #41159
2021-03-12 13:25:48 -08:00
Alan Agius 713b43f944 docs: remove deprecated Angular CLI APIs that have been removed (#41174)
With this change we remove deprecated Angular CLI APIs that have been removed in versions 12.

PR Close #41174
2021-03-12 13:24:28 -08:00
George Kalpakas 8d457ab2e1 fix(docs-infra): fix `<code-tabs>` in IE11 (#41183)
Previously, `<code-tabs>` did not work correctly in IE11. More
specifically, due to how IE11 handles updates to `innerHTML`, the
contents of `<code-pane>` elements were cleared before we could capture
them and pass them to the `<aio-code>` components.

This commit fixes it by ensuring we capture the `<code-pane>` contents
before clearing unneeded HTML.

Before: ![code tabs in IE11 before][1]
After: ![code tabs in IE11 after][2]

[1]: https://user-images.githubusercontent.com/8604205/110815248-f4460e00-8292-11eb-868e-eca7ba5e9cd3.png
[2]: https://user-images.githubusercontent.com/8604205/110815253-f5773b00-8292-11eb-80a6-1a0b1ea44d8f.png

PR Close #41183
2021-03-12 13:22:57 -08:00
George Kalpakas ea00e2c0b4 fix(docs-infra): fix display of AngularJS logo on the "Press kit" page in IE11 (#41183)
Previously, the AngularJS SVG logo shown on the "Press kit" page was not
displayed correctly in IE11 (see the image below).

This commit fixes it by explicitly specifying the SVG `viewBox` on the
logo.

Before: ![presskit AngularJS logo in IE11 before][1]
After: ![presskit AngularJS logo in IE11 after][2]

[1]: https://user-images.githubusercontent.com/8604205/110812629-7123b880-8290-11eb-9f71-0ae910536fa5.png
[2]: https://user-images.githubusercontent.com/8604205/110812633-7254e580-8290-11eb-896c-84f595d273b8.png

PR Close #41183
2021-03-12 13:22:57 -08:00
George Kalpakas 0d1b3fe55e fix(docs-infra): fix the layout of the "Features" page in IE11 (#41183)
IE11 does not support `justify-content: space-evenly` and therefore
falls back to the default (`flex-start`), breaking the layout of the
items in the "Features" page (see the image below).

This commit fixes the layout by specifying `space-around` as a fallback
for `justify-content`, which keeps the layout closer to the intended.

Before: ![features page layout in IE11 before][1]
After: ![features page layout in IE11 after][2]

[1]: https://user-images.githubusercontent.com/8604205/110811038-045bee80-828f-11eb-8027-d5851762a5eb.png
[2]: https://user-images.githubusercontent.com/8604205/110811076-0a51cf80-828f-11eb-98a0-2f2928128dd0.png

PR Close #41183
2021-03-12 13:22:57 -08:00
George Kalpakas 5c0122f7fd fix(docs-infra): fix the layout of docs pages in IE11 (#41183)
IE11 does not recognize the `<main>` element as a block element and
therefore it does not apply margin/paddings/widths as expected. This
resulted in the layout of docs pages being broken in IE11 (see the image
below).

This commit fixes the layout by explicitly setting `.sidenav-content`
(which is a `<main>` element) to `display: block`.

Before: ![docs pages layout in IE11 before][1]
After: ![docs pages layout in IE11 after][2]

[1]: https://user-images.githubusercontent.com/8604205/110808902-1b014600-828d-11eb-9eef-c1234dc2d436.png
[2]: https://user-images.githubusercontent.com/8604205/110808907-1ccb0980-828d-11eb-91d9-06e5cfafc894.png

PR Close #41183
2021-03-12 13:22:57 -08:00
George Kalpakas 8c939dcb40 fix(docs-infra): fix angular.io on browsers that support Custom Elements but not ES2015 (#41183)
Before #41162, angular.io was broken on IE 11 due to missing a polyfill
for an API (`Reflect.construct()`) needed by the Custom Elements ES5
shim. #41162 tried to fix this by loading the necessary polyfill
(`es.reflect.construct.js`) on browsers that do not support ES2015
modules (including IE 11).

It turns out that the fix in #41162 was itself broken, because the
`es.reflect.consruct.js` script (included directly in the page via a
`<script>` tag) was in CommonJS format (which cannot run in the browser
as is). By chance, this still allowed browsers that supported neither
Custom Elements nor ES2015 modules (such as IE 11) to work correctly as
a side-effect of loading the `@webcomponents/custom-elements` polyfill
after the Custom Elements ES5 shim (`native-shim.js`). However, on the
few browsers that natively support Custom Elements but not ES2015
modules, angular.io would still be broken.

This commit correctly fixes angular.io on all browsers by properly
bundling the polyfills and transpiling to ES5.

Implementation-wise, we use [esbuild][1] for bundling the polyfills (and
converting from CommonJS to a browser-compatible, IIFE-based format) and
[swc][2] for downleveling the code to ES5 (since `esbuild` only supports
ES2015+).

[1]: https://esbuild.github.io/
[2]: https://swc.rs/

PR Close #41183
2021-03-12 13:22:57 -08:00
Misko Hevery 70962465b5 fix(core): Switch `emitDistinctChangesOnlyDefaultValue` to true (#41121)
BREAKING CHANGE:

Switching default of `emitDistinctChangesOnlyDefaultValue`
which changes the default behavior and may cause some applications which
rely on the incorrect behavior to fail.

`emitDistinctChangesOnly` flag has also been deprecated and will be
removed in a future major release.

The previous implementation would fire changes `QueryList.changes.subscribe`
whenever the `QueryList` was recomputed. This resulted in an artificially
high number of change notifications, as it is possible that recomputing
`QueryList` results in the same list. When the `QueryList` gets recomputed
is an implementation detail, and it should not be the thing that determines
how often change event should fire.

Unfortunately, fixing the behavior outright caused too many existing
applications to fail. For this reason, Angular considers this fix a
breaking fix and has introduced a flag in `@ContentChildren` and
`@ViewChildren`, that controls the behavior.

```
export class QueryCompWithStrictChangeEmitParent {
  @ContentChildren('foo', {
    // This option is the new default with this change.
    emitDistinctChangesOnly: true,
  })
  foos!: QueryList<any>;
}
```
For backward compatibility before v12
`emitDistinctChangesOnlyDefaultValue` was set to `false. This change
changes the default to `true`.

PR Close #41121
2021-03-12 10:47:56 -08:00
Stepan Suvorov 94e8f5d4a4 docs: add stepan suvorov to GDE resources (#41178)
PR Close #41178
2021-03-11 09:31:48 -08:00
George Kalpakas f2ca29cd27 build(docs-infra): upgrade cli command docs sources to edc1d0bc7 (#41175)
Updating [angular#master](https://github.com/angular/angular/tree/master) from
[cli-builds#master](https://github.com/angular/cli-builds/tree/master).

##
Relevant changes in
[commit range](d62203a9f...edc1d0bc7):

**Modified**
- help/add.json
- help/build.json
- help/e2e.json
- help/extract-i18n.json
- help/generate.json
- help/new.json
- help/serve.json
- help/test.json

PR Close #41175
2021-03-11 09:30:51 -08:00
George Kalpakas e1e766a880 fix(docs-infra): generate the `404.html` page correctly (#41163)
Previously, the generated `404.html` page did not include a `<body>`
tag. In some browsers (such as IE 11), this was causing warnings in the
console.

This commit ensures the generated page contains a `<body>` tag. It also
fixes the indentation in the generated page.

PR Close #41163
2021-03-11 09:30:03 -08:00
George Kalpakas 79e21b966e fix(docs-infra): fix angular.io on IE 11 (#41162)
Previously, the angular.io app was broken on IE 11. In particular, pages
that included Custom Elements would fail to load, because the
`Reflect.construct()` method (which the Custom Elements ES5 shim relies
on) was not available.

This commit fixes this by loading the polyfill for `Reflect.construct()`
on browsers that do not support ES2015 (including IE 11).

PR Close #41162
2021-03-11 09:25:32 -08:00
George Kalpakas d368fa2fa4 fix(docs-infra): avoid unnecessarily loading Custom Elements ES5 shim (#41162)
The custom elements spec is not compatible with ES5 style classes. This
means ES2015 code compiled to ES5 will not work with a native
implementation of Custom Elements. To support browsers that natively
support Custom Elements but not ES2015 modules, we load
`@webcomponents/custom-elements/src/native-shim.js`, which minimally
augments the native implementation to be compatible with ES5 code.
(See [here][1] for more details.)

Previously, the shim was included in `polyfills.ts`, which meant it was
loaded in all browsers (even those supporting ES2015 modules and thus
not needing the shim).

This commit moves the shim from `polyfills.ts` to a `nomodule` script
tag in `index.html`. This will ensure that it is only loaded in browsers
that do not support ES2015 modules and thus do not needed the shim.

NOTE:
This commit also reduces size of the polyfills bundle by ~400B
(52609B --> 52215B).

[1]: https://www.npmjs.com/package/@webcomponents/custom-elements#es5-vs-es2015

PR Close #41162
2021-03-11 09:25:32 -08:00
pniedermeyer 4c79b8a644 docs: Remove of unnecessary Input (#41150)
remove unnecessary Input

PR Close #41150
2021-03-10 11:20:01 -08:00
Aristeidis Bampakos a730315fb2 docs: use double quotes in Tour of Heroes (pt1) (#41134)
Use double quotes to be consistent across the component template

PR Close #41134
2021-03-09 08:56:50 -08:00
George Kalpakas f281310d39 fix(docs-infra): print info to help debugging SW cache issue (#41106)
From time to time, an angular.io page fails to load due to requesting a
file that cannot be found neither on the server nor in the cache. We
believe this is caused by the browser's partially clearing a cache.
See #28114 for more details.

Some time ago, we introduced [SwUpdate#unrecoverable][1] to help work
around this issue by [reloading the page][2] when such an error is
detected.

However, this issue still pops up occasionally (for example, #41073).

In an attempt to help diagnose the issue, this commit prints more info
regarding the SW state and cache content when this error occurs. It will
result in something like the following being printed to the console:

```
ServiceWorker: activated

Cache: ngsw:/:db:control (2 entries)
  - https://angular.io/assignments: {"f5f02035-ee1f-463c-946c-e8b85badca25":"5c95f89a85255a6fefb4045a20f751ef32b2f3a4"}
  - https://angular.io/latest: {"latest":"5c95f89a85255a6fefb4045a20f751ef32b2f3a4"}

Cache: ngsw:/:5c95f89a85255a6fefb4045a20f751ef32b2f3a4:assets:app-shell:cache (24 entries)
  - https://angular.io/0-es2015.867022f8bb092ae1efb1.worker.js
  - https://angular.io/announcement-bar-announcement-bar-module-es2015.1b5b762c9c8837c770f8.js
  - https://angular.io/api-api-list-module-es2015.40a43cd22f50f64d63bb.js
  ...

Cache: ngsw:/:db:ngsw:/:5c95f89a85255a6fefb4045a20f751ef32b2f3a4:assets:app-shell:meta (1 entries)
  - https://angular.io/https://fonts.gstatic.com/s/robotomono/v13/L0x5DF4xlVMF-BfR8bXMIjhLq3-cXbKD.woff2:
      {"ts":1615031956601,"used":true}

If you see this error, please report an issue at https://github.com/angular/angular/issues/new?template=3-docs-bug.md
including the above logs.
```

NOTE:
This change increases the main bundle by 1649B (0.37%), but it can be
reverted as soon as we gather enough info to diagnose the issue.

[1]: https://angular.io/api/service-worker/SwUpdate#unrecoverable
[2]: https://github.com/angular/angular/blob/c676ec1ce5d586d4bc46/aio/src/app/sw-updates/sw-updates.service.ts#L55-L61

PR Close #41106
2021-03-09 08:54:52 -08:00
George Kalpakas 7a27cd262f refactor(docs-infra): simplify code snippet indentation in the "Cheat sheet" guide (#41051)
Previously, the indentation of code snippets in the "Cheat sheet" guide
was done using `<br>` elements (for line breaks) and `&emsp;` HTML
entities (for space). This was laborious and put the onus on the author
to remember to use these symbols (instead of regular whitespace
characters).
(Discussed in
https://github.com/angular/angular/pull/41051#discussion_r585651621.)

This commit changes the way `<code>` elements are styles inside the
"Cheat sheet" guide to allow using regular whitespace characters in code
snippets. It also changes all `<br>`/`&emsp;` occurrences to `\n`/`  `
respectively to make code snippets more readable in the source code.

PR Close #41051
2021-03-09 08:52:52 -08:00
George Kalpakas d7398d3025 fix(docs-infra): improve the layout of the "Features" page on medium screens (#41051)
The "Features" page organizes features in groups/rows of 3 features
each. On wide screens, all 3 paragraphs of a group/row can be shown next
to each other. On narrow screens (between 768px and 1057px), the layout
changes to stack the paragraphs vertically. On medium screens, however,
there is not enough space to show more than two paragraphs next to each
other.

Previously, the 3rd paragraph was wrapped over to the next line.

This commit improves the layout on medium screens by switching to
immediately stacking the paragraphs vertically as soon as there is not
enough space for them to be displayed in one row. Since the total width
is still too much for one paragraph, the paragraphs are limited to 80%
of the total width.

Before (on 1000px width): [features page (on 1000px) before][1]
After (on 1000px width): [features page (on 1000px) after][2]

[1]: https://user-images.githubusercontent.com/8604205/109825316-62128a00-7c42-11eb-8391-650201257274.png
[2]: https://user-images.githubusercontent.com/8604205/109825323-6343b700-7c42-11eb-86c1-e8307c5a727a.png

PR Close #41051
2021-03-09 08:52:52 -08:00
George Kalpakas 1054d554d8 fix(docs-infra): avoid truncating several API list items (#41051)
Previously, with the min width of 220px per item, several API list items
were truncated.

This commit increases the min width per item to 330px, which allows
almost all items to have their full text shown. It also increases the
API list page's max content width from 50em (800px) to 62.5em (1000px)
to allow items to be shown on three columns despite their increased
width. This increase in the content width shouldn't negatively affect
UX, since the API list page uses a multi-column layout (i.e. it does not
contain 1000px-lines of text.)

Before: ![api-list before][1]
After: ![api-list after][2]

[1]: https://user-images.githubusercontent.com/8604205/109396457-5f5e1f00-793a-11eb-80cf-1418f409325a.png
[2]: https://user-images.githubusercontent.com/8604205/109396659-499d2980-793b-11eb-95d3-f54250f7fab5.png

PR Close #41051
2021-03-09 08:52:52 -08:00
George Kalpakas a926fd020b fix(docs-infra): show ellipsis when text overflows in API list items (#41051)
Previously, when an API list item's text overflowed its container, it
was just hidden. This made it often difficult to realize that there was
more text.

This commit fixes this by ensuring an ellipsis (`...`) is shown when the
text overflows.

Before: ![api-list truncated before][1]
After: ![api-list truncated after][2]

[1]: https://user-images.githubusercontent.com/8604205/109396186-0cd03300-7939-11eb-921c-00621a3889a4.png
[2]: https://user-images.githubusercontent.com/8604205/109396187-0e016000-7939-11eb-9f3b-4535be083417.png

PR Close #41051
2021-03-09 08:52:52 -08:00
George Kalpakas 304a32b655 fix(docs-infra): limit max content width on "Contributors" and "Cheat sheet" pages (#41051)
Previously, the content width on the "Contributors" page (`/about`) and
the "Cheat sheet" guide (`/guide/cheatsheet`) was unlimited (i.e. the
content would take up all the available space horizontally). This was
not very ergonomic on large screens. Especially on the "Cheat sheet"
guide there was a lot of unnecessary whitespace between the code shown
on the left column and the description shown on the right column.

This commit fixes this by setting a max content width for both pages of
84em (1404px by default). This keeps the content at a more manageable
width and avoids unnecessary whitespace.

Before (contributors): ![contributors page on 2500px before][1]
Before (cheatsheet): ![cheatsheet on 2500px before][2]
After (contributors): ![contributors page on 2500px after][3]
After (cheatsheet): ![cheatsheet on 2500px after][4]

[1]: https://user-images.githubusercontent.com/8604205/109394323-1bb1e800-792f-11eb-9cd6-c5b83e5ae921.png
[2]: https://user-images.githubusercontent.com/8604205/109394329-1fde0580-792f-11eb-91c0-4ed7ad408b17.png
[3]: https://user-images.githubusercontent.com/8604205/109394319-181e6100-792f-11eb-9463-a281dfe80448.png
[4]: https://user-images.githubusercontent.com/8604205/109394330-210f3280-792f-11eb-9837-ddc7a8d01d19.png

PR Close #41051
2021-03-09 08:52:51 -08:00
George Kalpakas 4907d644bb refactor(docs-infra): use more consistent content width on marketing pages (#41051)
Previously, each marketing page used a different limit for its content's
width (if it had a limit at all) and implemented the width limiting in a
different way. Besides resulting in an inconsistent UX, this also made
it difficult to apply site-wide layout changes.

This commit makes the limit for most marketing pages consistent and uses
the same CSS class to make it easier to apply site-wide changes in the
future. The chosen limit is slightly larger than that of docs pages
(62.5em/1000px vs 50em/800px), because marketing pages have a different
type of content and layout (i.e. images, multi-column layout, etc.).
Finally, this commit also removes obsolete wrapper elements, CSS classes
and CSS styles, that are no longer necessary after the changes.

Notably, the homepage (`/`) and the "Contributors" page (`/about`) have
remained unchanged, because the former has its own layout that is
different from other marketing pages and the latter would offer a worse
UX with a small content width limit (as the one used on other marketing
pages).

The content widths of the rest of the marketing pages change slightly as
a result of the changes in this commit, but not in a way that would have
a negative impact on UX. More specifically:

| Page (URL)    | Size before | Size after |
|:--------------|------------:|-----------:|
| `/contribute` |       880px |     1000px |
| `/events`     |   unlimited |     1000px |
| `/features`   |       996px |     1000px |
| `/presskit`   |       800px |     1000px |
| `/resources`  |       800px |     1000px |

PR Close #41051
2021-03-09 08:52:51 -08:00
George Kalpakas 8365bc8946 refactor(docs-infra): fix code indentation in `ContributorListComponent`'s template (#41051)
This commit fixes the indentation of the template of
`ContributorListComponent` to make it more readable.

PR Close #41051
2021-03-09 08:52:51 -08:00
George Kalpakas 1b38b413de docs: fix indentation of code snippets in the "Cheat sheet" guide (#41051)
Previously, the indentation of code snippets in the "Cheat sheet" guide
was done using regular spaces. However, leading whitespace is ignored in
HTML elements (by default), which resulted in the identation being lost.

This commit fixes this by using the `&emsp;` HTML entity for
indentation, ensuring the code snippets are easier to read.

Some examples:

Before: ![cheatsheet code indentation before][1]
After: ![cheatsheet code since PR 40944][2]

[1]: https://user-images.githubusercontent.com/8604205/109385242-218dd600-78fb-11eb-9261-18ab5f2c308c.png
[2]: https://user-images.githubusercontent.com/8604205/109385246-25b9f380-78fb-11eb-8e82-d8a561deba21.png

PR Close #41051
2021-03-09 08:52:51 -08:00
George Kalpakas 76daca800e refactor(docs-infra): remove unnecessary wrapper `<div>` from the "Cheat sheet" guide (#41051)
This commit removes an unnecessary wrapper `<div>` from the
"Cheat sheet" guide. The CSS styles that referenced the element's ID
(`#cheatsheet`) have been updated to use `.page-guide-cheatsheet`
instead.

PR Close #41051
2021-03-09 08:52:51 -08:00
George Kalpakas f85a178a49 fix(docs-infra): fix `<code>` styling in the "Cheat sheet" guide (#41051)
Since #40944, `<code>` elements have a distinctive background to make
them stand out from regular text. However, this styling is not desirable
in certain cells of the "Cheat sheet" guide's tables, which exclusively
contain code.

This commit updates the `<code>` styling to remove the distinctive
background in those "Cheat sheet" cells.

Before #40944: ![cheatsheet code before PR 40944][1]
Since #40944: ![cheatsheet code since PR 40944][2]
After this commit: ![cheatsheet code after][3]

[1]: https://user-images.githubusercontent.com/8604205/109383633-4f215200-78f0-11eb-95e2-2a2c4fb3a31f.png
[2]: https://user-images.githubusercontent.com/8604205/109383634-50527f00-78f0-11eb-8c48-ff5f96918c4d.png
[3]: https://user-images.githubusercontent.com/8604205/109383635-50eb1580-78f0-11eb-9cf2-98851692ddd9.png

PR Close #41051
2021-03-09 08:52:51 -08:00
George Kalpakas d80d6ea3f6 fix(docs-infra): fix styling of `<code>` elements on older browsers (#41051)
Previously, styling of `<code>` elements utilized the `:not()` CSS
pseudo-class with multiple selectors (`:not(h1, h2, ...)`). It turns out
that older browsers (such as IE11) do not support multiple selectors in
a single `:not()` instance.
(See [MDN][1] and [CanIUse][2] for more info.)

This commit fixes `<code>` styling to use multiple separate `:not()`
instances instead (`:not(h1):not(h2)...`), so that they are styled
correctly on older browsers as well.

NOTE:
This change seems to trigger some kind of bug in LightHouse that causes
the a11y score of `/start` to be calculated as 0 (which is clearly
wrong). This happens on Linux (tested on CI and locally using the
Windows Subsystem for Linux (WSL)) - on Windows the score is computed
correctly as 98/100.
([Example failure][3])

The bug seems to be related to the layout of the content and goes away
if we change the viewport size (for example, switching to LightHouse's
`desktop` config) or make another change that affects the content's
layout (for example, reducing the padding of `<code>` elements).

To work around the issue, this commit updates the `test-aio-a11y.js`
script to test `/start-routing` instead of `/start`.

[1]: https://developer.mozilla.org/en-US/docs/Web/CSS/:not#description:~:text=Using%20two%20selectors
[2]: https://caniuse.com/css-not-sel-list
[3]: https://circleci.com/gh/angular/angular/931038

PR Close #41051
2021-03-09 08:52:51 -08:00
George Kalpakas 269d7e4d22 fix(docs-infra): improve the layout of the "Features" page on medium screens (#41051)
The "Features" page organizes features in groups/rows of 3 features
each. On wide screens, all 3 paragraphs of a group/row can be shown next
to each other. On narrow screens, the layout changes to stack the
paragraphs vertically. On medium screens, however, the 3rd paragragh is
wrapped over to the next line.

Previously, the wrapped content was left-aligned, which left a lot of
empty space on the right.

This commit improves the layout on medium screens by ensuring the
paragraphs are horizontally centered (with space distributed evenly
around them).

Before: ![features page before][1]
After: ![features page after][2]

[1]: https://user-images.githubusercontent.com/8604205/109344670-b64ef000-7877-11eb-9013-890562ff2f3d.png
[2]: https://user-images.githubusercontent.com/8604205/109344678-b7801d00-7877-11eb-9224-d7715f7d7235.png

PR Close #41051
2021-03-09 08:52:51 -08:00