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FEATURE: SVG letter avatars (based on @eviltrout's spike)

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Régis Hanol
2015-09-11 00:11:48 +02:00
parent 36abc6f9f7
commit cd77465788
8 changed files with 51 additions and 28 deletions
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26
app/controllers/user_avatars_controller.rb
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@ -3,7 +3,7 @@ require_dependency 'letter_avatar'
class UserAvatarsController < ApplicationController
DOT = Base64.decode64("R0lGODlhAQABALMAAAAAAIAAAACAAICAAAAAgIAAgACAgMDAwICAgP8AAAD/AP//AAAA//8A/wD//wBiZCH5BAEAAA8ALAAAAAABAAEAAAQC8EUAOw==")
skip_before_filter :preload_json, :redirect_to_login_if_required, :check_xhr, :verify_authenticity_token, only: [:show, :show_letter]
skip_before_filter :preload_json, :redirect_to_login_if_required, :check_xhr, :verify_authenticity_token, only: [:show, :show_letter, :show_letter_svg]
def refresh_gravatar
user = User.find_by(username_lower: params[:username].downcase)
@ -19,6 +19,30 @@ class UserAvatarsController < ApplicationController
end
end
def show_letter_svg
params.require(:username)
params.require(:version)
params.require(:size)
no_cookies
size = params[:size].to_i
username = params[:username]
identity = LetterAvatar::Identity.from_username(username)
color = identity.color
svg = <<-SVG
<svg xmlns="http://www.w3.org/2000/svg" width="#{size}" height="#{size}">
<rect width="100%" height="100%" fill="rgb(#{color[0]},#{color[1]},#{color[2]})" />
<text font-size="#{size * 0.7}" font-weight="normal" font-family="Helvetica, sans-serif" fill="#FFF" fill-opacity=".8" text-anchor="middle" x="50%" y="75%">#{username[0].capitalize}</text>
</svg>
SVG
expires_in 1.year, public: true
render inline: svg, content_type: "image/svg+xml"
end
def show_letter
params.require(:username)
params.require(:version)