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make dart quick start prettier, truthier

This commit is contained in:
Kathy Walrath 2015-03-02 22:22:56 -08:00
parent 46a55185a3
commit 5c6e4ecd0c
1 changed files with 73 additions and 58 deletions
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131
public/docs/dart/latest/quickstart.jade
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@ -11,11 +11,11 @@ p.
p.
In a new directory, create a <code>pubspec.yaml</code> file.
Add angular2 and browser as dependencies,
and add the angular2 transformer:
[PENDING: if the transformer isn't working in time,
remove it and use reflection in Dartium instead.
Perhaps require Dart 1.9.]
Add angular2 and browser as dependencies:
// [PENDING: if the transformer isn't working in time,
// remove it and use reflection in Dartium instead.
// Perhaps require Dart 1.9.]
pre.prettyprint.linenums
code.
@ -24,14 +24,12 @@ p.
dependencies:
angular2: "&gt;=2.0.0-alpha.6 &lt;3.0.0"
browser: any
transformers:
- angular2
p.
In the same directory, run <code>pub get</code>
to install the angular2 and browser packages
(along with the packages they depend on):
pre.prettyprint.linenums
pre.prettyprint
code.
> pub get
Resolving dependencies... (7.3s)
@ -41,23 +39,28 @@ p.
+ stack_trace 1.2.3
Changed 4 dependencies!
p.
PENDING: Create template? Link to pub/pubspec docs?
Is browser really needed?
TODO: make this an invisible note.
// PENDING: Create template? Link to pub/pubspec docs?
// Is browser really needed?
// TODO: make this an invisible note.
// STEP 2 - Import Angular ##########################
.l-main-section
h2#section-transpile 2. Import Angular
p.
Under the same directory, create a <code>web</code> directory.
Still in the same directory, create a <code>web</code> directory.
Create a file under <code>web</code> named <code>main.dart</code>.
Edit <code>web/main.dart</code> to import the angular2 library:
Edit <code>web/main.dart</code> to import the angular2 library
and (for now) two reflection libraries:
pre.prettyprint.linenums
code import 'package:angular2/angular2.dart';
code.
import 'package:angular2/angular2.dart';
// These imports will go away soon:
import 'package:angular2/src/reflection/reflection.dart' show reflector;
import 'package:angular2/src/reflection/reflection_capabilities.dart' show ReflectionCapabilities;
// STEP 3 - Define a component ##########################
.l-main-section
@ -71,29 +74,31 @@ p.
with annotations that describe the component.
p.
Update <code>web/main.dart</code> to contain the following code,
Update <code>web/main.dart</code> to add the following code,
which defines the app component:
pre.prettyprint.linenums
code.
import 'package:angular2/angular2.dart';
@Component(
selector: 'app'
selector: 'app'
)
@Template({
@Template(
inline: '&lt;h1&gt;Hello {{ name }}&lt;/h1&gt;'
})
)
class AppComponent {
String name = 'Alice';
}
// TODO: Change or omit line numbers.
.l-sub-section
h3 Annotations
p.
The <code>@Component</code> annotation defines the HTML tag for the component. [PENDING: component controller?]
The <code>selector</code> property specifies the tag. The <code>selector</code> property is a CSS selector. [PENDING: huh?]
The <code>@Component</code> annotation defines the HTML tag for the component.
The <code>selector</code> property specifies the tag. The <code>selector</code> property is a CSS selector.
// [PENDING: that last paragraph needs work!]
p.
The <code>@Template</code> annotation defines the template to apply to the
@ -104,17 +109,17 @@ p.
pre.prettyprint.linenums
code.
@Component(
selector: 'app'
selector: 'app'
)
@Template({
@Template(
inline: '&lt;h1&gt;Hello {{ name }}&lt;/h1&gt;'
})
)
p.
The annotations above specify an HTML tag of <code>&lt;app&gt;&lt;/app&gt;</code>
and a template of <code>&lt;h1&gt;Hello &#123;&#123; name }}&lt;/h1&gt;</code>.
p TODO: make double-mustaches work in text (they do work in listings)
// TODO: In the preceding paragraph, that should be rendered as {{ name }}, like in the listing.
.l-sub-section
h3 The template and the component controller
@ -122,10 +127,17 @@ p.
p.
A template has access to all the public properties and methods
of its component controller.
[PENDING: Do we really want to use the term "component controller"?
If so, set it up beforehand.
In the original text, what does "the backing" mean, and is it
important that we keep it?]
The template above binds to a <code>name</code> property through
the double-mustache syntax (<code>{{ }}</code>).
The body of the constructor assigns "Alice" to the name property. When the
template renders, Alice appears instead of <code>{{ name }}</code>.
// TODO: fix double mustaches above.
// [PENDING: Do we really want to use the term "component controller"?
// If so, set it up beforehand.
// In the original text, what does "the backing" mean, and is it
// important that we keep it?]
pre.prettyprint.linenums
code.
@ -133,14 +145,6 @@ p.
String name = 'Alice';
}
p.
The template above binds to a <code>name</code> property through the <code>{{ }}</code>
syntax.The body of the constructor assigns "Alice" to the name property. When the
template renders, Alice appears instead of <code>{{ name }}</code>.
[TODO: fix double mustaches]
// STEP 4 - Bootstrap ##########################
.l-main-section
h2#section-transpile 4. Bootstrap
@ -150,15 +154,22 @@ p.
add a <code>main()</code> function
that calls Angular's <code>bootstrap()</code> function.
The argument to <code>bootstrap()</code> is the name of the app class
you defined above:
you defined above.
p.
For now, you also need to set the value of
<code>reflector.reflectionCapabilities</code>.
pre.prettyprint.linenums
code.
main() {
// Temporarily needed.
reflector.reflectionCapabilities = new ReflectionCapabilities();
bootstrap(AppComponent);
}
p.
[PENDING: change/remove line numbers. They should start at 12.]
// [PENDING: change/remove line numbers. They should start at 12.]
// STEP 5 - Declare the HTML ##########################
.l-main-section
@ -179,33 +190,36 @@ p.
&lt;/head&gt;
&lt;body>
&lt;app>&lt;/app>
&lt;script type="application/dart" src="main.dart">&lt;/script>
&lt;script src="packages/browser/dart.js">&lt;/script>
&lt;/body>
&lt;/html>
p.
[PENDING: When I select a bunch of code, it looks like I select the line #s too, making me fear that they'll get copied. But pasting doesn't include them. Fix!]
// STEP 5 - Build and run ##########################
// [PENDING: When I select a bunch of code, it looks like I select the line #s too, making me fear that they'll get copied. But pasting doesn't include them. Can we fix that?]
// STEP 6 - Build and run ##########################
.l-main-section
h2#section-angular-run-app 5. Build and run your app
h2#section-angular-run-app 6. Build and run your app
p.
You have many options.
One is to run the <code>pub serve</code>
command in the directory
that contains your app's <code>pubspec.yaml</code> file:
You have several options for running your app.
The quickest and easiest, for now,
is to open your project in <b>Dart Editor</b>,
right-click <code>web/index.html</code>,
and choose <b>Open in Dartium</b>.
pre.prettyprint.linenums
code.
> pub serve
Serving helloworld on http://localhost:8080
// TODO: screenshot?
p.
In the browser, go to the index file—for example,
localhost:8080/web/index.html.
[PENDING: This isn't working right now. Fix!]
Another option is to build and serve the app using <code>pub serve</code>,
and then to run it by visiting http://localhost:8080/index.html in a browser.
The JavaScript generated using this option is large, for now;
it'll be much better soon, when a transformer becomes available
to convert the reflection code from dynamic to static code.
// [PENDING: Update when transformer is working!]
// WHAT'S NEXT... ##########################
.l-main-section
@ -213,4 +227,5 @@ p.
p.
Learn some template syntax for extra credit.
[PENDING: really?]
// [PENDING: really?]