102 lines
3.3 KiB
Elixir
102 lines
3.3 KiB
Elixir
defmodule Outlook.HtmlPreparations.HtmlPreparation do
|
|
import Ecto.UUID, only: [generate: 0]
|
|
|
|
alias Outlook.InternalTree.InternalNode
|
|
|
|
@block_elements ["address","article","aside","blockquote","canvas","dd","div","dl","dt","fieldset","figcaption","figure","footer","form","h1","h2","h3","h4","h5","h6","header","hr","li","main","nav","noscript","ol","p","pre","section","table","tfoot","ul","video"]
|
|
# @inline_elements ["a","abbr","acronym","b","bdo","big","br","button","cite","code","dfn","em","i","img","input","kbd","label","map","object","output","q","samp","script","select","small","span","strong","sub","sup","textarea","time","tt","u","var"]
|
|
|
|
defp clean_atts_to_map(atts) do
|
|
atts_to_keep = ~w(href src)
|
|
atts_to_rename = ~w(class style src-set)
|
|
atts
|
|
|> Enum.reject(fn {k,_} -> k not in (atts_to_keep ++ atts_to_rename) end)
|
|
|> Enum.reject(fn {_,v} -> v == "" end)
|
|
|> Enum.map(fn {k,v} -> {k in atts_to_rename && "#{k}-old" || k, v} end)
|
|
|> Enum.map(fn {k,v} -> {String.to_atom(k),v} end)
|
|
|> Enum.into(%{})
|
|
end
|
|
|
|
def floki_to_internal [ { tag, attributes, content } | rest ] do
|
|
[ %InternalNode{
|
|
name: tag,
|
|
attributes: clean_atts_to_map(attributes),
|
|
type: :element,
|
|
uuid: generate(),
|
|
content: floki_to_internal(content)
|
|
} | floki_to_internal(rest) ]
|
|
end
|
|
|
|
def floki_to_internal [ "" <> textnode | rest ] do
|
|
[ %InternalNode{
|
|
type: :text,
|
|
uuid: generate(),
|
|
content: textnode
|
|
} | floki_to_internal(rest) ]
|
|
end
|
|
|
|
def floki_to_internal [ {:comment, comment} | rest ] do
|
|
[ %InternalNode{
|
|
type: :comment,
|
|
uuid: generate(),
|
|
content: comment
|
|
} | floki_to_internal(rest) ]
|
|
end
|
|
|
|
def floki_to_internal([ ]), do: ( [ ] )
|
|
|
|
|
|
def set_sibling_with([ %{type: :element} = node | rest ]) do
|
|
[ %InternalNode{ node |
|
|
sibling_with: node.name in @block_elements && :block || :inline,
|
|
content: set_sibling_with(node.content)
|
|
} | set_sibling_with(rest) ]
|
|
end
|
|
|
|
def set_sibling_with([ node | rest ]) do
|
|
sib_with = case node.type do
|
|
:text -> Regex.match?(~r/^\s*$/, node.content) && :both || :inline
|
|
:comment -> :both
|
|
end
|
|
[ %InternalNode{ node | sibling_with: sib_with } | set_sibling_with(rest) ]
|
|
end
|
|
|
|
def set_sibling_with([ ]), do: ( [ ] )
|
|
|
|
def strip_whitespace_textnodes [ %{type: :text} = node | rest] do
|
|
if Regex.match?(~r/^\s*$/, node.content) do
|
|
strip_whitespace_textnodes(rest)
|
|
else
|
|
[ node | strip_whitespace_textnodes(rest)]
|
|
end
|
|
end
|
|
|
|
|
|
def strip_whitespace_textnodes [ %{type: :element} = node | rest] do
|
|
[ %InternalNode{ node | content: strip_whitespace_textnodes(node.content) }
|
|
| strip_whitespace_textnodes(rest) ]
|
|
end
|
|
|
|
def strip_whitespace_textnodes [ node | rest] do
|
|
[ node | strip_whitespace_textnodes(rest) ]
|
|
end
|
|
|
|
def strip_whitespace_textnodes([]), do: []
|
|
|
|
|
|
def build_indentation_list [ %{type: :element} = node | rest], level do
|
|
[ %{node: Map.replace(node, :content, []), level: level}
|
|
| [ build_indentation_list(node.content, level + 1)
|
|
| build_indentation_list(rest, level)
|
|
]
|
|
] |> List.flatten
|
|
end
|
|
|
|
def build_indentation_list [ node | rest ], level do
|
|
[ %{node: node, level: level}
|
|
| build_indentation_list( rest, level ) ]
|
|
end
|
|
|
|
def build_indentation_list([ ], _), do: []
|
|
end
|