168 lines
3.1 KiB
Elixir
168 lines
3.1 KiB
Elixir
defmodule Temple do
|
|
alias Temple.Buffer
|
|
|
|
@moduledoc """
|
|
> Warning: Docs are WIP
|
|
|
|
Temple syntax is available inside the `temple` and `live_temple` macros, and is compiled into EEx at build time.
|
|
|
|
### Usage
|
|
|
|
```elixir
|
|
temple do
|
|
# You can define attributes by passing a keyword list to the element, the values can be literals or variables.
|
|
class = "text-blue"
|
|
id = "jumbotron"
|
|
|
|
div class: class, id: id do
|
|
# Text nodes can be emitted as string literals or variables.
|
|
"Bob"
|
|
|
|
id
|
|
end
|
|
|
|
# if and unless expressions can be used to conditionally render content
|
|
if 5 > 0 do
|
|
p do
|
|
"Greater than 0!"
|
|
end
|
|
end
|
|
|
|
unless 5 > 0 do
|
|
p do
|
|
"Less than 0!"
|
|
end
|
|
end
|
|
|
|
# You can loop over items using for comprehensions
|
|
for x <- 0..5 do
|
|
div do
|
|
x
|
|
end
|
|
end
|
|
|
|
# You can use multiline anonymous functions, like if you're building a form in Phoenix
|
|
form_for @changeset, Routes.user_path(@conn, :create), fn f ->
|
|
"Name: "
|
|
text_input f, :name
|
|
end
|
|
|
|
# You can explicitly call a tag by prefixing with the Temple module
|
|
Temple.div do
|
|
"Foo"
|
|
end
|
|
|
|
# You can also pass children as a do key instead of a block
|
|
div do: "Alice", class: "text-yellow"
|
|
end
|
|
```
|
|
|
|
### Reserved keywords
|
|
|
|
You can pass a keyword list to an element as element attributes, but there are several reserved keywords.
|
|
|
|
#### Compact
|
|
|
|
Passing `compact: true` will not rendering new lines from within the element. This is useful if you are trying to use the `:empty` psuedo selector.
|
|
|
|
```elixir
|
|
temple do
|
|
p compact: true do
|
|
"Foo"
|
|
end
|
|
p do
|
|
"Bar"
|
|
end
|
|
end
|
|
```
|
|
|
|
would evaluate to
|
|
|
|
```html
|
|
<p>Foo</p>
|
|
<p>
|
|
Bar
|
|
</p>
|
|
```
|
|
|
|
### Configuration
|
|
|
|
#### Aliases
|
|
|
|
You can add an alias for an element if there is a namespace collision with a function. If you are using `Phoenix.HTML`, there will be namespace collisions with the `<link>` and `<label>` elements.
|
|
|
|
```elixir
|
|
config :temple, :aliases,
|
|
label: :_label,
|
|
link: :_link
|
|
|
|
temple do
|
|
_label do
|
|
"Email"
|
|
end
|
|
|
|
_link href: "/css/site.css"
|
|
end
|
|
```
|
|
|
|
This will result in:
|
|
|
|
```html
|
|
<label>
|
|
Email
|
|
</label>
|
|
|
|
<link href="/css/site.css">
|
|
```
|
|
"""
|
|
|
|
defmacro __using__(_) do
|
|
quote location: :keep do
|
|
import Temple
|
|
end
|
|
end
|
|
|
|
defmacro temple([do: block] = _block) do
|
|
{:ok, buffer} = Buffer.start_link()
|
|
|
|
buffer
|
|
|> Temple.Parser.Private.traverse(block)
|
|
|
|
markup = Buffer.get(buffer)
|
|
|
|
Buffer.stop(buffer)
|
|
|
|
quote location: :keep do
|
|
unquote(markup)
|
|
end
|
|
end
|
|
|
|
defmacro temple(block) do
|
|
quote location: :keep do
|
|
import Temple
|
|
|
|
{:ok, buffer} = Buffer.start_link()
|
|
|
|
buffer
|
|
|> Temple.Parser.Private.traverse(unquote(block))
|
|
|
|
markup = Buffer.get(buffer)
|
|
|
|
Buffer.stop(buffer)
|
|
|
|
markup
|
|
end
|
|
end
|
|
|
|
defmacro live_temple([do: block] = _block) do
|
|
{:ok, buffer} = Buffer.start_link()
|
|
|
|
buffer
|
|
|> Temple.Parser.Private.traverse(block)
|
|
|
|
markup = Buffer.get(buffer)
|
|
|
|
Buffer.stop(buffer)
|
|
EEx.compile_string(markup, engine: Phoenix.LiveView.Engine)
|
|
end
|
|
end
|