theme-switcher-package/themeSwitcher.nim

129 lines
5.3 KiB
Nim

from std/osproc import execProcess, ProcessOption, startProcess, waitForExit, close
from std/os import symlinkExists, getConfigDir, putEnv, `/`
from std/strutils import split, endsWith, strip
from std/algorithm import fill
from std/strformat import fmt
import owlkettle
const
# Set the directory path where icons are stored
iconsDir = "/usr/share/tromjaro-theme-switcher/icons"
# GTK CSS for overriding the default icon size of buttons
gtkCSS = "button { -gtk-icon-size: 22mm; }"
themeColors = ["Grey", "Pink", "Green", "Orange", "Purple", "Yellow", "Teal"]
themeStyles = ["Light", "Nord", "Dark", "Dark-Nord"]
proc runCommand(command: string, args: openArray[string]): bool =
## This will run a command with the given args and return true upon success
let process = startProcess(command, args=args, options={poParentStreams})
result = process.waitForExit() == 0
process.close()
proc setIconTheme(iconName: string) =
# Change icon theme in XFCE
discard runCommand("/usr/bin/xfconf-query",
args=["--channel=xsettings", "--property=/Net/IconThemeName", "--create", "--type=string", "--set", iconName])
proc enableDarkPanels(): bool =
# Return if dark panels is already enabled
if execProcess("/usr/bin/xfconf-query",
args=["--channel=xfce4-panel", "--property=/panels/dark-mode"], options={}) == "true\n":
return
# Try to enable it and return true upon success
result = runCommand("/usr/bin/xfconf-query",
args=["--channel=xfce4-panel", "--property=/panels/dark-mode", "--create", "--type=bool", "--set=true"])
proc setTheme(themeName: string) =
var panelNotification: string
# Set the icon theme and panel color according to the chosen theme
if themeName.endsWith("-Dark") or themeName.endsWith("-Dark-Nord"):
setIconTheme("zafiro-dark")
else:
setIconTheme("zafiro")
if enableDarkPanels():
panelNotification = " with dark panels"
# Change the main theme to the chosen one
discard runCommand("/usr/bin/xfconf-query",
args=["--channel=xsettings", "--property=/Net/ThemeName", "--create", "--type=string", "--set", themeName])
# Send notification about the theme change
sendNotification("com.tromjaro.ThemeSwitcher", "Theme Switcher", fmt"{themeName} theme{panelNotification} is enabled",
icon=fmt"{iconsDir}/{themeName}.svg")
# Prevent loading GTK theme from ~/.config/gtk-4.0 directory when it is a symlink
if symlinkExists(getConfigDir() / "gtk-4.0"):
putEnv("XDG_CONFIG_HOME", "/dev/null")
var
lastClickedButton: array[2, int]
# Display the GTK-4 GUI using owlkettle
viewable App:
# 2D array storing the style for each button
buttonStyles: array[themeStyles.len(),array[themeColors.len(), StyleClass]]
hooks:
build:
# Make all buttons flat by default
for index in 0..state.buttonStyles.high():
fill(state.buttonStyles[index], ButtonFlat)
let currentTheme: string = execProcess("/usr/bin/xfconf-query",
args=["--channel=xsettings", "--property=/Net/ThemeName"],
options={}).strip(leading=false, trailing=true, chars={'\n'})
let currentThemeSplit: seq[string] = currentTheme.split('-', 2)
if currentThemeSplit.len() < 3 or currentThemeSplit[0] != "Colloid":
return
let currentThemeColorIndex = find(themeColors, currentThemeSplit[1])
let currentThemeStyleIndex = find(themeStyles, currentThemeSplit[2])
if -1 in [currentThemeColorIndex, currentThemeStyleIndex]:
return
# Highlight current theme button
state.buttonStyles[currentThemeStyleIndex][currentThemeColorIndex] = ButtonSuggested
lastClickedButton = [currentThemeStyleIndex, currentThemeColorIndex]
method view(app: AppState): Widget =
result = gui:
Window:
title = "TROMjaro Theme Switcher"
# Shrink window to the smallest size
defaultSize = (0, 0)
# Vertical box
Box(orient = OrientY, margin = 7, spacing = 5):
Label:
text="A Theme Switcher for TROMjaro's default theme-set (Colloid) and icon-set (Zafiro)."
Label {.vAlign: AlignStart.}:
useMarkup = true
text="<span size='small'>NOTE: Some apps need to be reopened for the theme to be applied.</span>"
for y, themeStyle in themeStyles:
# Horizontal box
Box(orient = OrientX, spacing = 5):
for x, themeColor in themeColors:
Button {.vAlign: AlignCenter, hAlign: AlignCenter.}:
icon = fmt"Colloid-{themeColor}-{themeStyle}"
# Teal-Dark-Nord theme will have "(default)" added to its tooltip
tooltip = if (themeColor, themeStyle) == ("Teal", "Dark-Nord"):
fmt"{themeColor}-{themeStyle} (default)"
else:
fmt"{themeColor}-{themeStyle}"
style = app.buttonStyles[y][x]
proc clicked() =
var thisButton = [y, x]
setTheme(fmt"Colloid-{themeColor}-{themeStyle}")
# Highlight this button
app.buttonStyles[y][x] = ButtonSuggested
if lastClickedButton != thisButton:
# Remove highlight from lastClickedButton
app.buttonStyles[lastClickedButton[0]][lastClickedButton[1]] = ButtonFlat
lastClickedButton = thisButton
brew("com.tromjaro.ThemeSwitcher", gui(App()), icons=[iconsDir], stylesheets=[newStylesheet(gtkCSS)])