about summary refs log tree commit diff
path: root/app/helpers/application_helper.rb
blob: db33292c1a730f704ea66f2ded68c99c62b9eb8c (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
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
# frozen_string_literal: true

module ApplicationHelper
  DANGEROUS_SCOPES = %w(
    read
    write
    follow
  ).freeze

  RTL_LOCALES = %i(
    ar
    ckb
    fa
    he
  ).freeze

  def friendly_number_to_human(number, **options)
    # By default, the number of precision digits used by number_to_human
    # is looked up from the locales definition, and rails-i18n comes with
    # values that don't seem to make much sense for many languages, so
    # override these values with a default of 3 digits of precision.
    options = options.merge(
      precision: 3,
      strip_insignificant_zeros: true,
      significant: true
    )

    number_to_human(number, **options)
  end

  def active_nav_class(*paths)
    paths.any? { |path| current_page?(path) } ? 'active' : ''
  end

  def active_link_to(label, path, **options)
    link_to label, path, options.merge(class: active_nav_class(path))
  end

  def show_landing_strip?
    !user_signed_in? && !single_user_mode?
  end

  def open_registrations?
    Setting.registrations_mode == 'open'
  end

  def approved_registrations?
    Setting.registrations_mode == 'approved'
  end

  def closed_registrations?
    Setting.registrations_mode == 'none'
  end

  def available_sign_up_path
    if closed_registrations? || omniauth_only?
      'https://joinmastodon.org/#getting-started'
    else
      new_user_registration_path
    end
  end

  def omniauth_only?
    ENV['OMNIAUTH_ONLY'] == 'true'
  end

  def link_to_login(name = nil, html_options = nil, &block)
    target = new_user_session_path

    html_options = name if block_given?

    if omniauth_only? && Devise.mappings[:user].omniauthable? && User.omniauth_providers.size == 1
      target = omniauth_authorize_path(:user, User.omniauth_providers[0])
      html_options ||= {}
      html_options[:method] = :post
    end

    if block_given?
      link_to(target, html_options, &block)
    else
      link_to(name, target, html_options)
    end
  end

  def provider_sign_in_link(provider)
    label = Devise.omniauth_configs[provider]&.strategy&.display_name.presence || I18n.t("auth.providers.#{provider}", default: provider.to_s.chomp('_oauth2').capitalize)
    link_to label, omniauth_authorize_path(:user, provider), class: "button button-#{provider}", method: :post
  end

  def open_deletion?
    Setting.open_deletion
  end

  def locale_direction
    if RTL_LOCALES.include?(I18n.locale)
      'rtl'
    else
      'ltr'
    end
  end

  def title
    Rails.env.production? ? site_title : "#{site_title} (Dev)"
  end

  def class_for_scope(scope)
    'scope-danger' if DANGEROUS_SCOPES.include?(scope.to_s)
  end

  def can?(action, record)
    return false if record.nil?
    policy(record).public_send("#{action}?")
  end

  def fa_icon(icon, attributes = {})
    class_names = attributes[:class]&.split(' ') || []
    class_names << 'fa'
    class_names += icon.split(' ').map { |cl| "fa-#{cl}" }

    content_tag(:i, nil, attributes.merge(class: class_names.join(' ')))
  end

  def visibility_icon(status)
    if status.public_visibility?
      fa_icon('globe', title: I18n.t('statuses.visibilities.public'))
    elsif status.unlisted_visibility?
      fa_icon('unlock', title: I18n.t('statuses.visibilities.unlisted'))
    elsif status.private_visibility? || status.limited_visibility?
      fa_icon('lock', title: I18n.t('statuses.visibilities.private'))
    elsif status.direct_visibility?
      fa_icon('at', title: I18n.t('statuses.visibilities.direct'))
    end
  end

  def interrelationships_icon(relationships, account_id)
    if relationships.following[account_id] && relationships.followed_by[account_id]
      fa_icon('exchange', title: I18n.t('relationships.mutual'), class: 'fa-fw active passive')
    elsif relationships.following[account_id]
      fa_icon(locale_direction == 'ltr' ? 'arrow-right' : 'arrow-left', title: I18n.t('relationships.following'), class: 'fa-fw active')
    elsif relationships.followed_by[account_id]
      fa_icon(locale_direction == 'ltr' ? 'arrow-left' : 'arrow-right', title: I18n.t('relationships.followers'), class: 'fa-fw passive')
    end
  end

  def custom_emoji_tag(custom_emoji)
    if prefers_autoplay?
      image_tag(custom_emoji.image.url, class: 'emojione', alt: ":#{custom_emoji.shortcode}:")
    else
      image_tag(custom_emoji.image.url(:static), class: 'emojione custom-emoji', alt: ":#{custom_emoji.shortcode}", 'data-original' => full_asset_url(custom_emoji.image.url), 'data-static' => full_asset_url(custom_emoji.image.url(:static)))
    end
  end

  def opengraph(property, content)
    tag(:meta, content: content, property: property)
  end

  def react_component(name, props = {}, &block)
    if block.nil?
      content_tag(:div, nil, data: { component: name.to_s.camelcase, props: Oj.dump(props) })
    else
      content_tag(:div, data: { component: name.to_s.camelcase, props: Oj.dump(props) }, &block)
    end
  end

  def react_admin_component(name, props = {})
    content_tag(:div, nil, data: { 'admin-component': name.to_s.camelcase, props: Oj.dump({ locale: I18n.locale }.merge(props)) })
  end

  def body_classes
    output = (@body_classes || '').split(' ')
    output << "theme-#{current_theme.parameterize}"
    output << 'system-font' if current_account&.user&.setting_system_font_ui
    output << (current_account&.user&.setting_reduce_motion ? 'reduce-motion' : 'no-reduce-motion')
    output << 'rtl' if locale_direction == 'rtl'
    output.reject(&:blank?).join(' ')
  end

  def cdn_host
    Rails.configuration.action_controller.asset_host
  end

  def cdn_host?
    cdn_host.present?
  end

  def storage_host
    "https://#{ENV['S3_ALIAS_HOST'].presence || ENV['S3_CLOUDFRONT_HOST']}"
  end

  def storage_host?
    ENV['S3_ALIAS_HOST'].present? || ENV['S3_CLOUDFRONT_HOST'].present?
  end

  def quote_wrap(text, line_width: 80, break_sequence: "\n")
    text = word_wrap(text, line_width: line_width - 2, break_sequence: break_sequence)
    text.split("\n").map { |line| "> #{line}" }.join("\n")
  end

  def render_initial_state
    state_params = {
      settings: {
        known_fediverse: Setting.show_known_fediverse_at_about_page,
      },

      text: [params[:title], params[:text], params[:url]].compact.join(' '),
    }

    permit_visibilities = %w(public unlisted private direct)
    default_privacy     = current_account&.user&.setting_default_privacy
    permit_visibilities.shift(permit_visibilities.index(default_privacy) + 1) if default_privacy.present?
    state_params[:visibility] = params[:visibility] if permit_visibilities.include? params[:visibility]

    if user_signed_in?
      state_params[:settings]          = state_params[:settings].merge(Web::Setting.find_by(user: current_user)&.data || {})
      state_params[:push_subscription] = current_account.user.web_push_subscription(current_session)
      state_params[:current_account]   = current_account
      state_params[:token]             = current_session.token
      state_params[:admin]             = Account.find_local(Setting.site_contact_username.strip.gsub(/\A@/, ''))
    end

    json = ActiveModelSerializers::SerializableResource.new(InitialStatePresenter.new(state_params), serializer: InitialStateSerializer).to_json
    # rubocop:disable Rails/OutputSafety
    content_tag(:script, json_escape(json).html_safe, id: 'initial-state', type: 'application/json')
    # rubocop:enable Rails/OutputSafety
  end

  def grouped_scopes(scopes)
    scope_parser      = ScopeParser.new
    scope_transformer = ScopeTransformer.new

    scopes.each_with_object({}) do |str, h|
      scope = scope_transformer.apply(scope_parser.parse(str))

      if h[scope.key]
        h[scope.key].merge!(scope)
      else
        h[scope.key] = scope
      end
    end.values
  end

  def prerender_custom_emojis(html, custom_emojis, other_options = {})
    EmojiFormatter.new(html, custom_emojis, other_options.merge(animate: prefers_autoplay?)).to_s
  end
end