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Add prefers-color-scheme support (#601)

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* Add prefers-color-scheme support

This should fix <https://github.com/omarroth/invidious/issues/559>.
The cookie storage format has been changed from boolean
("true"/"false") to tri-state ("dark"/"light"/""), so that users
without a cookie set will get dark mode if they have enabled the dark
theme in their operating system. The code for handling the cookie
state, along with the user's operating system theme, has been factored
out into a new function `update_mode`, which is called both at window
load and at the "storage" event listener, because the "storage" event
listener is only trigerred when a change is made to the localStorage
from another tab/window (for more info - see
<https://stackoverflow.com/a/4679754>).
This commit is contained in:
psvenk 2019-08-15 16:29:55 +00:00 • committed by Omar Roth
parent 19eceb4ecc
commit f54fbd057e
24 changed files with 215 additions and 84 deletions
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30
src/invidious.cr
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@ -267,8 +267,7 @@ before_all do |env|
end
end
dark_mode = env.params.query["dark_mode"]? || preferences.dark_mode.to_s
dark_mode = dark_mode == "true"
dark_mode = convert_theme(env.params.query["dark_mode"]?) || preferences.dark_mode.to_s
thin_mode = env.params.query["thin_mode"]? || preferences.thin_mode.to_s
thin_mode = thin_mode == "true"
@ -1528,8 +1527,7 @@ post "/preferences" do |env|
locale ||= CONFIG.default_user_preferences.locale
dark_mode = env.params.body["dark_mode"]?.try &.as(String)
dark_mode ||= "off"
dark_mode = dark_mode == "on"
dark_mode ||= CONFIG.default_user_preferences.dark_mode
thin_mode = env.params.body["thin_mode"]?.try &.as(String)
thin_mode ||= "off"
@ -1553,6 +1551,7 @@ post "/preferences" do |env|
notifications_only ||= "off"
notifications_only = notifications_only == "on"
# Convert to JSON and back again to take advantage of converters used for compatability
preferences = Preferences.from_json({
annotations: annotations,
annotations_subscribed: annotations_subscribed,
@ -1648,12 +1647,27 @@ get "/toggle_theme" do |env|
if user = env.get? "user"
user = user.as(User)
preferences = user.preferences
preferences.dark_mode = !preferences.dark_mode
PG_DB.exec("UPDATE users SET preferences = $1 WHERE email = $2", preferences.to_json, user.email)
case preferences.dark_mode
when "dark"
preferences.dark_mode = "light"
else
preferences.dark_mode = "dark"
end
preferences = preferences.to_json
PG_DB.exec("UPDATE users SET preferences = $1 WHERE email = $2", preferences, user.email)
else
preferences = env.get("preferences").as(Preferences)
preferences.dark_mode = !preferences.dark_mode
case preferences.dark_mode
when "dark"
preferences.dark_mode = "light"
else
preferences.dark_mode = "dark"
end
preferences = preferences.to_json
if Kemal.config.ssl || config.https_only
@ -2026,7 +2040,7 @@ post "/data_control" do |env|
env.response.puts %(<meta http-equiv="refresh" content="0; url=#{referer}">)
env.response.puts %(<link rel="stylesheet" href="/css/ionicons.min.css?v=#{ASSET_COMMIT}">)
env.response.puts %(<link rel="stylesheet" href="/css/default.css?v=#{ASSET_COMMIT}">)
if env.get("preferences").as(Preferences).dark_mode
if env.get("preferences").as(Preferences).dark_mode == "dark"
env.response.puts %(<link rel="stylesheet" href="/css/darktheme.css?v=#{ASSET_COMMIT}">)
else
env.response.puts %(<link rel="stylesheet" href="/css/lighttheme.css?v=#{ASSET_COMMIT}">)