docs/pages/templates.rb in phlex-0.2.2 vs docs/pages/templates.rb in phlex-0.3.0

- old
+ new

@@ -1,242 +1,242 @@ # frozen_string_literal: true module Pages - class Templates < ApplicationPage - def template - render Layout.new(title: "Templates in Phlex") do - render Markdown.new(<<~MD) - # Templates + class Templates < ApplicationPage + def template + render Layout.new(title: "Templates in Phlex") do + render Markdown.new(<<~MD) + # Templates - Rather than use another langauge like ERB, HAML or Slim, Phlex provides a Ruby DSL for defining HTML templates. + Rather than use another language like ERB, HAML or Slim, Phlex provides a Ruby DSL for defining HTML templates. - You can create a component class by subclassing `Phlex::Component` and defining a method called `template`. Within the `template` method, you can compose HTML markup by calling the name of any [HTML element](https://developer.mozilla.org/en-US/docs/Web/HTML/Element). + You can create a view class by subclassing `Phlex::View` and defining a method called `template`. Within the `template` method, you can compose HTML markup by calling the name of any [HTML element](https://developer.mozilla.org/en-US/docs/Web/HTML/Element). - The first argument to an HTML element method is the _text content_ for that element. For example, here’s a component with an `<h1>` element that says “Hello World!” - MD + The first argument to an HTML element method is the _text content_ for that element. For example, here’s a view with an `<h1>` element that says “Hello World!” + MD - render Example.new do |e| - e.tab "heading.rb", <<~RUBY - class Heading < Phlex::Component - def template - h1 "Hello World!" - end - end - RUBY + render Example.new do |e| + e.tab "heading.rb", <<~RUBY + class Heading < Phlex::View + def template + h1 "Hello World!" + end + end + RUBY - e.execute "Heading.new.call" - end + e.execute "Heading.new.call" + end - render Markdown.new(<<~MD) - The text content is always HTML-escaped, so it’s safe to use with user input. + render Markdown.new(<<~MD) + The text content is always HTML-escaped, so it’s safe to use with user input. - ## Attributes + ## Attributes - You can add attributes to HTML elements by passing keyword arguments to the tag method. Underscores (`_`) in attribute names are automatically converted to dashes (`-`). - MD + You can add attributes to HTML elements by passing keyword arguments to the tag method. Underscores (`_`) in attribute names are automatically converted to dashes (`-`). + MD - render Example.new do |e| - e.tab "heading.rb", <<~RUBY - class Heading < Phlex::Component - def template - h1 "Hello World!", - class: "text-xl font-bold", - aria_details: "details" - end - end - RUBY + render Example.new do |e| + e.tab "heading.rb", <<~RUBY + class Heading < Phlex::View + def template + h1 "Hello World!", + class: "text-xl font-bold", + aria_details: "details" + end + end + RUBY - e.execute "Heading.new.call" - end + e.execute "Heading.new.call" + end - render Markdown.new(<<~MD) - You can also use *boolean* attributes. When set to `true`, the attribute will be rendered without a value, when _falsy_, the attribute isn’t rendered at all. - MD + render Markdown.new(<<~MD) + You can also use *boolean* attributes. When set to `true`, the attribute will be rendered without a value, when _falsy_, the attribute isn’t rendered at all. + MD - render Example.new do |e| - e.tab "example.rb", <<~RUBY - class Example < Phlex::Component - def template - input type: "radio", name: "channel", id: "1", checked: true - input type: "radio", name: "channel", id: "2", checked: false - end - end - RUBY + render Example.new do |e| + e.tab "example.rb", <<~RUBY + class Example < Phlex::View + def template + input type: "radio", name: "channel", id: "1", checked: true + input type: "radio", name: "channel", id: "2", checked: false + end + end + RUBY - e.execute "Example.new.call" - end + e.execute "Example.new.call" + end - render Markdown.new(<<~MD) - ## Nesting + render Markdown.new(<<~MD) + ## Nesting - Pass a block to an element method to nest other elements inside it. - MD + Pass a block to an element method to nest other elements inside it. + MD - render Example.new do |e| - e.tab "nav.rb", <<~RUBY - class Nav < Phlex::Component - def template - nav do - ul do - li { a "Home", href: "/" } - li { a "About", href: "/about" } - li { a "Contact", href: "/contact" } - end - end - end - end - RUBY + render Example.new do |e| + e.tab "nav.rb", <<~RUBY + class Nav < Phlex::View + def template + nav do + ul do + li { a "Home", href: "/" } + li { a "About", href: "/about" } + li { a "Contact", href: "/contact" } + end + end + end + end + RUBY - e.execute "Nav.new.call" - end + e.execute "Nav.new.call" + end - render Markdown.new(<<~MD) - ## Stand-alone text + render Markdown.new(<<~MD) + ## Stand-alone text - You can also output text without wrapping it in an element by using the `text` method. All text content is HTML-escaped, so it’s safe to use with user input. - MD + You can also output text without wrapping it in an element by using the `text` method. All text content is HTML-escaped, so it’s safe to use with user input. + MD - render Example.new do |e| - e.tab "heading.rb", <<~RUBY - class Heading < Phlex::Component - def template - h1 { strong "Hello "; text "World!" } - end - end - RUBY + render Example.new do |e| + e.tab "heading.rb", <<~RUBY + class Heading < Phlex::View + def template + h1 { strong "Hello "; text "World!" } + end + end + RUBY - e.execute "Heading.new.call" - end + e.execute "Heading.new.call" + end - render Markdown.new(<<~MD) - ## Whitespace + render Markdown.new(<<~MD) + ## Whitespace - While the examples on this page have been formatted for readability, there is usually no whitespace between HTML tags. If you need to add some whitespace, you can use the `whitespace` method. This is useful for adding space between _inline_ elements to allow them to wrap. - MD + While the examples on this page have been formatted for readability, there is usually no whitespace between HTML tags. If you need to add some whitespace, you can use the `whitespace` method. This is useful for adding space between _inline_ elements to allow them to wrap. + MD - render Example.new do |e| - e.tab "links.rb", <<~RUBY - class Links < Phlex::Component - def template - a "Home", href: "/" - whitespace - a "About", href: "/about" - whitespace - a "Contact", href: "/contact" - end - end - RUBY + render Example.new do |e| + e.tab "links.rb", <<~RUBY + class Links < Phlex::View + def template + a "Home", href: "/" + whitespace + a "About", href: "/about" + whitespace + a "Contact", href: "/contact" + end + end + RUBY - e.execute "Links.new.call" - end + e.execute "Links.new.call" + end - render Markdown.new(<<~MD) - ## Tokens and classes + render Markdown.new(<<~MD) + ## Tokens and classes - The `tokens` method helps you define conditional HTML attribute tokens (such as CSS classes). + The `tokens` method helps you define conditional HTML attribute tokens (such as CSS classes). - The `tokens` method accepts a splat of tokens that should always be output, and accepts keyword arguments for conditional tokens. + The `tokens` method accepts a splat of tokens that should always be output, and accepts keyword arguments for conditional tokens. - The keyword arguments allow you to specify under which conditions certain tokens are applicable. The keyword argument keys are the conditions and the values are the tokens. Conditions can be Procs or Symbols that map to a relevant method. The `:active?` Symbol, for example, maps to the `active?` instance method. + The keyword arguments allow you to specify under which conditions certain tokens are applicable. The keyword argument keys are the conditions and the values are the tokens. Conditions can be Procs or Symbols that map to a relevant method. The `:active?` Symbol, for example, maps to the `active?` instance method. - Here we have a `Link` component that produces an `<a>` tag with the CSS class `nav-item`. And if the link is _active_, we also apply the CSS class `nav-item-active`. - MD + Here we have a `Link` view that produces an `<a>` tag with the CSS class `nav-item`. And if the link is _active_, we also apply the CSS class `nav-item-active`. + MD - render Example.new do |e| - e.tab "link.rb", <<~RUBY - class Link < Phlex::Component - def initialize(text, to:, active:) - @text = text - @to = to - @active = active - end + render Example.new do |e| + e.tab "link.rb", <<~RUBY + class Link < Phlex::View + def initialize(text, to:, active:) + @text = text + @to = to + @active = active + end - def template - a @text, href: @to, class: tokens("nav-item", - active?: "nav-item-active") - end + def template + a @text, href: @to, class: tokens("nav-item", + active?: "nav-item-active") + end - private + private - def active? = @active - end - RUBY + def active? = @active + end + RUBY - e.tab "example.rb", <<~RUBY - class Example < Phlex::Component - def template - nav do - ul do - li { render Link.new("Home", to: "/", active: true) } - li { render Link.new("About", to: "/about", active: false) } - end - end - end - end - RUBY + e.tab "example.rb", <<~RUBY + class Example < Phlex::View + def template + nav do + ul do + li { render Link.new("Home", to: "/", active: true) } + li { render Link.new("About", to: "/about", active: false) } + end + end + end + end + RUBY - e.execute "Example.new.call" - end + e.execute "Example.new.call" + end - render Markdown.new(<<~MD) - You can also use the `classes` helper method to create a token list of classes. Since this method returns a hash (e.g. `{ class: "your CSS classes here" }`), you can destructure it into a `class:` keyword argument using the `**` prefix operator. - MD + render Markdown.new(<<~MD) + You can also use the `classes` helper method to create a token list of classes. Since this method returns a hash (e.g. `{ class: "your CSS classes here" }`), you can destructure it into a `class:` keyword argument using the `**` prefix operator. + MD - render Example.new do |e| - e.tab "link.rb", <<~RUBY - class Link < Phlex::Component - def initialize(text, to:, active:) - @text = text - @to = to - @active = active - end + render Example.new do |e| + e.tab "link.rb", <<~RUBY + class Link < Phlex::View + def initialize(text, to:, active:) + @text = text + @to = to + @active = active + end - def template - a @text, href: @to, **classes("nav-item", - active?: "nav-item-active") - end + def template + a @text, href: @to, **classes("nav-item", + active?: "nav-item-active") + end - private + private - def active? = @active - end - RUBY + def active? = @active + end + RUBY - e.tab "example.rb", <<~RUBY - class Example < Phlex::Component - def template - nav do - ul do - li { render Link.new("Home", to: "/", active: true) } - li { render Link.new("About", to: "/about", active: false) } - end - end - end - end - RUBY + e.tab "example.rb", <<~RUBY + class Example < Phlex::View + def template + nav do + ul do + li { render Link.new("Home", to: "/", active: true) } + li { render Link.new("About", to: "/about", active: false) } + end + end + end + end + RUBY - e.execute "Example.new.call" - end + e.execute "Example.new.call" + end - render Markdown.new(<<~MD) - ## The template element + render Markdown.new(<<~MD) + ## The template element - Because the `template` method is used to define the component template itself, you need to use the method `template_tag` if you want to to render an HTML `<template>` tag. - MD + Because the `template` method is used to define the view template itself, you need to use the method `template_tag` if you want to to render an HTML `<template>` tag. + MD - render Example.new do |e| - e.tab "example.rb", <<~RUBY - class Example < Phlex::Component - def template - template_tag do - img src: "hidden.jpg", alt: "A hidden image." - end - end - end - RUBY + render Example.new do |e| + e.tab "example.rb", <<~RUBY + class Example < Phlex::View + def template + template_tag do + img src: "hidden.jpg", alt: "A hidden image." + end + end + end + RUBY - e.execute "Example.new.call" - end - end - end - end + e.execute "Example.new.call" + end + end + end + end end