129 lines
3.1 KiB
Ruby
129 lines
3.1 KiB
Ruby
# frozen_string_literal: true
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module ThemeHelper
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ATTRIBUTE_MAP = {
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"primary_color" => %w[primary primary-rgb],
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"primary_text" => "primary-text",
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"danger_color" => "danger",
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"danger_text" => "danger-text",
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"warning_color" => "warning",
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"warning_text" => "warning-text",
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"info_color" => "info",
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"info_text" => "info-text",
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"success_color" => "success",
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"success_text" => "success-text",
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"dark_color" => "dark",
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"dark_text" => "dark-text",
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"light_color" => "light",
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"light_text" => "light-text",
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"raised_background" => %w[raised-bg raised-bg-rgb],
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"raised_text" => "raised-text",
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"raised_accent" => %w[raised-accent raised-accent-rgb],
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"raised_accent_text"=> "raised-accent-text",
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"background_color" => "background",
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"body_text" => "body-text",
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"input_color" => "input-bg",
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"input_text" => "input-text",
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"input_placeholder" => "input-placeholder",
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"muted_text" => "muted-text"
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}.freeze
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def render_theme
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theme = get_active_theme
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return unless theme
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body = ":root {\n"
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theme.attributes.each do |k, v|
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next unless ATTRIBUTE_MAP.key?(k)
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Array(ATTRIBUTE_MAP[k]).each do |var|
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body += "\t--#{var}: #{get_color_for_key(var, v)};\n"
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end
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end
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body += "\t--turbolinks-progress-color: ##{lighten(theme.primary_color)}\n}"
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content_tag(:style, body)
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end
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def get_color_for_key(key, color)
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hex = get_hex_color_from_theme_value(color)
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if key.include?("text") || key.include?("placeholder") || key.include?("rgb")
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get_decimal_triplet_from_hex(hex)
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else
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"##{hex}"
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end
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end
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def theme_color
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theme = get_active_theme
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if theme
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theme.theme_color
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else
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"#5e35b1"
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end
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end
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def mobile_theme_color
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theme = get_active_theme
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if theme
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theme.mobile_theme_color
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else
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"#f0edf4"
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end
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end
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def get_active_theme
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if @user&.theme
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if user_signed_in?
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if current_user&.show_foreign_themes?
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@user.theme
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else
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current_user&.theme
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end
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else
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@user.theme
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end
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elsif @answer&.user&.theme
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if user_signed_in?
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if current_user&.show_foreign_themes?
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@answer.user.theme
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else
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current_user&.theme
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end
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else
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@answer.user.theme
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end
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elsif current_user&.theme
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current_user.theme
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end
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end
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def get_hex_color_from_theme_value(value)
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"0000000#{value.to_s(16)}"[-6, 6]
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end
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def get_decimal_triplet_from_hex(value)
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hexes = value.split(/(.{2})/).reject(&:empty?)
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hexes.map(&:hex).join(", ")
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end
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def rgb_values_from_hex(value)
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[
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(value & 0xFF0000) >> 16, # R
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(value & 0x00FF00) >> 8, # G
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value & 0x0000FF # B
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]
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end
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def rgb_to_hex(rgb_values)
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rgb_values.map.with_index { |v, i| v << ((2 - i) * 8) }.reduce(&:+).to_s(16)
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end
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def lighten(value, amount = 0.25)
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rgb_to_hex(rgb_values_from_hex(value).map { |v| [(v + (255 * amount)).round, 255].min })
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end
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end
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