aboutsummaryrefslogtreecommitdiffstats
path: root/actiontext/lib/action_text/content.rb
blob: 16bc6fe03102c6487c08080cf8037fe869ecabf3 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
# frozen_string_literal: true

require "active_support/core_ext/module/attribute_accessors_per_thread"

module ActionText
  class Content
    include Serialization

    thread_cattr_accessor :renderer

    attr_reader :fragment

    delegate :blank?, :empty?, :html_safe, :present?, to: :to_html # Delegating to to_html to avoid including the layout

    class << self
      def fragment_by_canonicalizing_content(content)
        fragment = ActionText::Attachment.fragment_by_canonicalizing_attachments(content)
        fragment = ActionText::AttachmentGallery.fragment_by_canonicalizing_attachment_galleries(fragment)
        fragment
      end
    end

    def initialize(content = nil, options = {})
      options.with_defaults! canonicalize: true

      if options[:canonicalize]
        @fragment = self.class.fragment_by_canonicalizing_content(content)
      else
        @fragment = ActionText::Fragment.wrap(content)
      end
    end

    def links
      @links ||= fragment.find_all("a[href]").map { |a| a["href"] }.uniq
    end

    def attachments
      @attachments ||= attachment_nodes.map do |node|
        attachment_for_node(node)
      end
    end

    def attachment_galleries
      @attachment_galleries ||= attachment_gallery_nodes.map do |node|
        attachment_gallery_for_node(node)
      end
    end

    def gallery_attachments
      @gallery_attachments ||= attachment_galleries.flat_map(&:attachments)
    end

    def attachables
      @attachables ||= attachment_nodes.map do |node|
        ActionText::Attachable.from_node(node)
      end
    end

    def append_attachables(attachables)
      attachments = ActionText::Attachment.from_attachables(attachables)
      self.class.new([self.to_s.presence, *attachments].compact.join("\n"))
    end

    def render_attachments(**options, &block)
      content = fragment.replace(ActionText::Attachment::SELECTOR) do |node|
        block.call(attachment_for_node(node, **options))
      end
      self.class.new(content, canonicalize: false)
    end

    def render_attachment_galleries(&block)
      content = ActionText::AttachmentGallery.fragment_by_replacing_attachment_gallery_nodes(fragment) do |node|
        block.call(attachment_gallery_for_node(node))
      end
      self.class.new(content, canonicalize: false)
    end

    def to_plain_text
      render_attachments(with_full_attributes: false, &:to_plain_text).fragment.to_plain_text
    end

    def to_trix_html
      render_attachments(&:to_trix_attachment).to_html
    end

    def to_html
      fragment.to_html
    end

    def to_rendered_html_with_layout
      renderer.render(partial: "action_text/content/layout", locals: { content: self })
    end

    def to_s
      to_rendered_html_with_layout
    end

    def as_json(*)
      to_html
    end

    def inspect
      "#<#{self.class.name} #{to_s.truncate(25).inspect}>"
    end

    def ==(other)
      if other.is_a?(self.class)
        to_s == other.to_s
      end
    end

    private
      def attachment_nodes
        @attachment_nodes ||= fragment.find_all(ActionText::Attachment::SELECTOR)
      end

      def attachment_gallery_nodes
        @attachment_gallery_nodes ||= ActionText::AttachmentGallery.find_attachment_gallery_nodes(fragment)
      end

      def attachment_for_node(node, with_full_attributes: true)
        attachment = ActionText::Attachment.from_node(node)
        with_full_attributes ? attachment.with_full_attributes : attachment
      end

      def attachment_gallery_for_node(node)
        ActionText::AttachmentGallery.from_node(node)
      end
  end
end

ActiveSupport.run_load_hooks :action_text_content, ActionText::Content