allow for using SVG logos in the navbar

this uses our new and improved logo by default, but can be easily
changed by modifying `/public/logo.svg`.  the svg is loaded only once
when the application starts, so any modifications to it after a
deployment are visible immediately.

thanks to the power of CSS and SVG being able to make use of it, custom
colour schemes still work too.
This commit is contained in:
Georg Gadinger 2022-10-24 22:55:48 +02:00 committed by Andreas Nedbal
parent 86869dc993
commit 87ec3093a9
6 changed files with 43 additions and 4 deletions

View File

@ -6,6 +6,14 @@
&:focus {
color: RGB(var(--primary-text));
}
/* svg-logo! \o/ */
svg {
height: $navbar-brand-font-size;
path {
fill: RGB(var(--primary-text));
}
}
}
.navbar-nav {
@ -47,4 +55,4 @@
color: RGB(var(--primary-text));
}
}
}
}

View File

@ -1,7 +1,10 @@
%nav.navbar.navbar-themed.navbar-expand-lg.bg-primary.fixed-top.d-lg-block.d-none.d-print-none{ role: :navigation }
.container{ class: ios_web_app? ? 'ios-web-app' : '' }
%a.navbar-brand{ href: '/' }
= APP_CONFIG['site_name']
%a.navbar-brand{ href: '/', title: APP_CONFIG["site_name"] }
- if APP_CONFIG["use_svg_logo"]
= render inline: Rails.application.config.justask_svg_logo
- else
= APP_CONFIG["site_name"]
%ul.nav.navbar-nav.mr-auto
= nav_entry t("navigation.timeline"), root_path, icon: 'home'
= nav_entry t("navigation.inbox"), '/inbox', icon: 'inbox', badge: inbox_count

View File

@ -1,6 +1,10 @@
%nav.navbar.navbar-themed.navbar-expand-lg.bg-primary.fixed-top{ role: :navigation }
.container{ class: ios_web_app? ? 'ios-web-app' : '' }
%a.navbar-brand{ href: '/' }= APP_CONFIG['site_name']
%a.navbar-brand{ href: '/', title: APP_CONFIG["site_name"] }
- if APP_CONFIG["use_svg_logo"]
= render inline: Rails.application.config.justask_svg_logo
- else
= APP_CONFIG["site_name"]
%button.navbar-toggler{ data: { target: '#j2-main-navbar-collapse', toggle: :collapse }, type: :button }
%span.sr-only= t("navigation.toggle")
%span.navbar-toggler-icon

View File

@ -0,0 +1,20 @@
# frozen_string_literal: true
return unless APP_CONFIG[:use_svg_logo]
begin
logo_path = Rails.public_path.join("logo.svg")
# we are only interested in the first element which should be the <svg> node --> extract it and transform some attributes
logo_svg = File.read(logo_path)
svg_doc = Nokogiri::XML(logo_svg)
svg_node = svg_doc.first_element_child
# remove some attributes that might interfere with the rest of the layout
%w[id name class width height].each do |attr|
svg_node.remove_attribute attr
end
Rails.application.config.justask_svg_logo = svg_node.to_xml
rescue => e
warn "use_svg_logo is enabled, but the SVG could not be read due to: #{e.message} (#{e.class.name}). Disabling SVG logo."
APP_CONFIG[:use_svg_logo] = false
end

View File

@ -1,6 +1,9 @@
# The site name, shown everywhere.
site_name: "justask"
# Use the SVG logo from `/public/logo.svg`
use_svg_logo: false
hostname: "justask.rrerr.net"
https: true

1
public/logo.svg Normal file
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@ -0,0 +1 @@
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