Fork of Tangara with customizations
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tangara-fw/lua/playing.lua

279 lines
8.0 KiB

local lvgl = require("lvgl")
local widgets = require("widgets")
local backstack = require("backstack")
local font = require("font")
local playback = require("playback")
local queue = require("queue")
local screen = require("screen")
local theme = require("theme")
local img = {
play = lvgl.ImgData("//lua/img/play.png"),
pause = lvgl.ImgData("//lua/img/pause.png"),
next = lvgl.ImgData("//lua/img/next.png"),
prev = lvgl.ImgData("//lua/img/prev.png"),
shuffle = lvgl.ImgData("//lua/img/shuffle.png"),
repeat_src = lvgl.ImgData("//lua/img/repeat.png"), -- repeat is a reserved word
}
local format_time = function(time)
time = math.floor(time)
return string.format("%d:%02d", time // 60, time % 60)
end
local is_now_playing_shown = false
local icon_enabled_class = "icon_enabled"
local icon_disabled_class = "icon_disabled"
return screen:new {
createUi = function(self)
self.root = lvgl.Object(nil, {
flex = {
flex_direction = "column",
flex_wrap = "wrap",
justify_content = "center",
align_items = "center",
align_content = "center",
},
w = lvgl.HOR_RES(),
h = lvgl.VER_RES(),
})
self.root:center()
self.status_bar = widgets.StatusBar(self, {
back_cb = backstack.pop,
transparent_bg = true,
})
local info = self.root:Object {
flex = {
flex_direction = "column",
flex_wrap = "wrap",
justify_content = "center",
align_items = "center",
align_content = "center",
},
w = lvgl.PCT(100),
h = lvgl.SIZE_CONTENT,
flex_grow = 1,
}
local artist = info:Label {
w = lvgl.PCT(100),
h = lvgl.SIZE_CONTENT,
text = "",
text_font = font.fusion_10,
text_align = 2,
}
local title = info:Label {
w = lvgl.PCT(100),
h = lvgl.SIZE_CONTENT,
text = "",
text_align = 2,
}
local playlist = self.root:Object {
flex = {
flex_direction = "row",
justify_content = "center",
align_items = "center",
align_content = "center",
},
w = lvgl.PCT(100),
h = lvgl.SIZE_CONTENT,
}
playlist:Object({ w = 3, h = 1 }) -- spacer
local cur_time = playlist:Label {
w = lvgl.SIZE_CONTENT,
h = lvgl.SIZE_CONTENT,
text = "",
text_font = font.fusion_10,
}
playlist:Object({ flex_grow = 1, h = 1 }) -- spacer
local playlist_pos = playlist:Label {
text = "",
text_font = font.fusion_10,
}
playlist:Label {
text = "/",
text_font = font.fusion_10,
}
local playlist_total = playlist:Label {
text = "",
text_font = font.fusion_10,
}
playlist:Object({ flex_grow = 1, h = 1 }) -- spacer
local end_time = playlist:Label {
w = lvgl.SIZE_CONTENT,
h = lvgl.SIZE_CONTENT,
align = lvgl.ALIGN.RIGHT_MID,
text = format_time(0),
text_font = font.fusion_10,
}
playlist:Object({ w = 3, h = 1 }) -- spacer
local scrubber = self.root:Slider {
w = lvgl.PCT(100),
h = 5,
range = { min = 0, max = 100 },
value = 0,
}
local scrubber_desc = widgets.Description(scrubber, "Scrubber")
scrubber:onevent(lvgl.EVENT.RELEASED, function()
local track = playback.track:get()
if not track then return end
if not track.duration then return end
playback.position:set(scrubber:value() / 100 * track.duration)
end)
scrubber:onevent(lvgl.EVENT.VALUE_CHANGED, function()
if scrubber:is_dragged() then
local track = playback.track:get()
if not track then return end
if not track.duration then return end
cur_time:set {
text = format_time(scrubber:value() / 100 * track.duration)
}
end
end)
local controls = self.root:Object {
flex = {
flex_direction = "row",
justify_content = "center",
align_items = "center",
align_content = "center",
},
w = lvgl.PCT(100),
h = lvgl.SIZE_CONTENT,
pad_column = 8,
pad_all = 2,
}
controls:Object({ flex_grow = 1, h = 1 }) -- spacer
local repeat_btn = controls:Button {}
repeat_btn:onClicked(function()
queue.repeat_track:set(not queue.repeat_track:get())
end)
local repeat_img = repeat_btn:Image { src = img.repeat_src }
theme.set_style(repeat_img, icon_enabled_class)
local repeat_desc = widgets.Description(repeat_btn)
local prev_btn = controls:Button {}
prev_btn:onClicked(function()
if playback.position:get() > 3 then
playback.position:set(0)
else
queue.previous()
end
end)
local prev_img = prev_btn:Image { src = img.prev }
theme.set_style(prev_img, icon_enabled_class)
local prev_desc = widgets.Description(prev_btn, "Previous track")
local play_pause_btn = controls:Button {}
play_pause_btn:onClicked(function()
playback.playing:set(not playback.playing:get())
end)
play_pause_btn:focus()
local play_pause_img = play_pause_btn:Image { src = img.pause }
theme.set_style(play_pause_img, icon_enabled_class)
local play_pause_desc = widgets.Description(play_pause_btn, "Play")
local next_btn = controls:Button {}
next_btn:onClicked(queue.next)
local next_img = next_btn:Image { src = img.next }
theme.set_style(next_img, icon_disabled_class)
local next_desc = widgets.Description(next_btn, "Next track")
local shuffle_btn = controls:Button {}
shuffle_btn:onClicked(function()
queue.random:set(not queue.random:get())
end)
local shuffle_img = shuffle_btn:Image { src = img.shuffle }
theme.set_style(shuffle_img, icon_enabled_class)
local shuffle_desc = widgets.Description(shuffle_btn)
controls:Object({ flex_grow = 1, h = 1 }) -- spacer
self.bindings = self.bindings + {
playback.playing:bind(function(playing)
if playing then
play_pause_img:set_src(img.pause)
play_pause_desc:set { text = "Pause" }
else
play_pause_img:set_src(img.play)
play_pause_desc:set { text = "Play" }
end
end),
playback.position:bind(function(pos)
if not pos then return end
if not scrubber:is_dragged() then
cur_time:set {
text = format_time(pos)
}
local track = playback.track:get()
if not track then return end
if not track.duration then return end
scrubber:set { value = pos / track.duration * 100 }
end
end),
playback.track:bind(function(track)
if not track then return end
if track.duration then
end_time:set { text = format_time(track.duration) }
else
end_time:set { text = format_time(playback.position:get()) }
end
title:set { text = track.title }
artist:set { text = track.artist }
end),
queue.position:bind(function(pos)
if not pos then return end
playlist_pos:set { text = tostring(pos) }
theme.set_style(
next_img, pos < queue.size:get() and icon_enabled_class or icon_disabled_class
)
end),
queue.random:bind(function(shuffling)
theme.set_style(shuffle_img, shuffling and icon_enabled_class or icon_disabled_class)
if shuffling then
shuffle_desc:set { text = "Disable shuffle" }
else
shuffle_desc:set { text = "Enable shuffle" }
end
end),
queue.repeat_track:bind(function(en)
theme.set_style(repeat_img, en and icon_enabled_class or icon_disabled_class)
if en then
repeat_desc:set { text = "Disable track repeat" }
else
repeat_desc:set { text = "Enable track repeat" }
end
end),
queue.size:bind(function(num)
if not num then return end
playlist_total:set { text = tostring(num) }
end),
}
end,
onShown = function() is_now_playing_shown = true end,
onHidden = function() is_now_playing_shown = false end,
pushIfNotShown = function(self)
if not is_now_playing_shown then
backstack.push(self:new())
end
end
}