375 lines
14 KiB
Lua
375 lines
14 KiB
Lua
local Element = require('elements/Element')
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local Button = require('elements/Button')
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local CycleButton = require('elements/CycleButton')
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local Speed = require('elements/Speed')
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-- sizing:
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-- static - shrink, have highest claim on available space, disappear when there's not enough of it
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-- dynamic - shrink to make room for static elements until they reach their ratio_min, then disappear
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-- gap - shrink if there's no space left
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-- space - expands to fill available space, shrinks as needed
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-- scale - `options.controls_size` scale factor.
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-- ratio - Width/height ratio of a static or dynamic element.
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-- ratio_min Min ratio for 'dynamic' sized element.
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---@alias ControlItem {element?: Element; kind: string; sizing: 'space' | 'static' | 'dynamic' | 'gap'; scale: number; ratio?: number; ratio_min?: number; hide: boolean; dispositions?: table<string, boolean>}
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---@class Controls : Element
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local Controls = class(Element)
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function Controls:new() return Class.new(self) --[[@as Controls]] end
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function Controls:init()
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Element.init(self, 'controls', {render_order = 6})
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---@type ControlItem[] All control elements serialized from `options.controls`.
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self.controls = {}
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---@type ControlItem[] Only controls that match current dispositions.
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self.layout = {}
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self:init_options()
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end
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function Controls:destroy()
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self:destroy_elements()
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Element.destroy(self)
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end
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function Controls:init_options()
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-- Serialize control elements
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local shorthands = {
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['play-pause'] = 'cycle:pause:pause:no/yes=play_arrow?' .. t('Play/Pause'),
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menu = 'command:menu:script-binding uosc/menu-blurred?' .. t('Menu'),
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subtitles = 'command:subtitles:script-binding uosc/subtitles#sub>0?' .. t('Subtitles'),
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audio = 'command:graphic_eq:script-binding uosc/audio#audio>1?' .. t('Audio'),
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['audio-device'] = 'command:speaker:script-binding uosc/audio-device?' .. t('Audio device'),
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video = 'command:theaters:script-binding uosc/video#video>1?' .. t('Video'),
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playlist = 'command:list_alt:script-binding uosc/playlist?' .. t('Playlist'),
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chapters = 'command:bookmark:script-binding uosc/chapters#chapters>0?' .. t('Chapters'),
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['editions'] = 'command:bookmarks:script-binding uosc/editions#editions>1?' .. t('Editions'),
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['stream-quality'] = 'command:high_quality:script-binding uosc/stream-quality?' .. t('Stream quality'),
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['open-file'] = 'command:file_open:script-binding uosc/open-file?' .. t('Open file'),
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['items'] = 'command:list_alt:script-binding uosc/items?' .. t('Playlist/Files'),
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prev = 'command:arrow_back_ios:script-binding uosc/prev?' .. t('Previous'),
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next = 'command:arrow_forward_ios:script-binding uosc/next?' .. t('Next'),
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first = 'command:first_page:script-binding uosc/first?' .. t('First'),
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last = 'command:last_page:script-binding uosc/last?' .. t('Last'),
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['loop-playlist'] = 'cycle:repeat:loop-playlist:no/inf!?' .. t('Loop playlist'),
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['loop-file'] = 'cycle:repeat_one:loop-file:no/inf!?' .. t('Loop file'),
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shuffle = 'toggle:shuffle:shuffle?' .. t('Shuffle'),
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fullscreen = 'cycle:crop_free:fullscreen:no/yes=fullscreen_exit!?' .. t('Fullscreen'),
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}
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-- Parse out disposition/config pairs
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local items = {}
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local in_disposition = false
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local current_item = nil
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for c in options.controls:gmatch('.') do
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if not current_item then current_item = {disposition = '', config = ''} end
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if c == '<' and #current_item.config == 0 then
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in_disposition = true
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elseif c == '>' and #current_item.config == 0 then
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in_disposition = false
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elseif c == ',' and not in_disposition then
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items[#items + 1] = current_item
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current_item = nil
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else
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local prop = in_disposition and 'disposition' or 'config'
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current_item[prop] = current_item[prop] .. c
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end
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end
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items[#items + 1] = current_item
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-- Create controls
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self.controls = {}
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for i, item in ipairs(items) do
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local config = shorthands[item.config] and shorthands[item.config] or item.config
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local config_tooltip = split(config, ' *%? *')
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local tooltip = config_tooltip[2]
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config = shorthands[config_tooltip[1]]
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and split(shorthands[config_tooltip[1]], ' *%? *')[1] or config_tooltip[1]
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local config_badge = split(config, ' *# *')
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config = config_badge[1]
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local badge = config_badge[2]
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local parts = split(config, ' *: *')
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local kind, params = parts[1], itable_slice(parts, 2)
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-- Serialize dispositions
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local dispositions = {}
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for _, definition in ipairs(comma_split(item.disposition)) do
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if #definition > 0 then
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local value = definition:sub(1, 1) ~= '!'
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local name = not value and definition:sub(2) or definition
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local prop = name:sub(1, 4) == 'has_' and name or 'is_' .. name
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dispositions[prop] = value
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end
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end
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-- Convert toggles into cycles
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if kind == 'toggle' then
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kind = 'cycle'
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params[#params + 1] = 'no/yes!'
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end
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-- Create a control element
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local control = {dispositions = dispositions, kind = kind}
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if kind == 'space' then
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control.sizing = 'space'
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elseif kind == 'gap' then
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table_assign(control, {sizing = 'gap', scale = 1, ratio = params[1] or 0.3, ratio_min = 0})
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elseif kind == 'command' then
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if #params ~= 2 then
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mp.error(string.format(
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'command button needs 2 parameters, %d received: %s', #params, table.concat(params, '/')
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))
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else
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local element = Button:new('control_' .. i, {
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render_order = self.render_order,
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icon = params[1],
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anchor_id = 'controls',
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on_click = function() mp.command(params[2]) end,
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tooltip = tooltip,
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count_prop = 'sub',
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})
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table_assign(control, {element = element, sizing = 'static', scale = 1, ratio = 1})
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if badge then self:register_badge_updater(badge, element) end
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end
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elseif kind == 'cycle' then
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if #params ~= 3 then
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mp.error(string.format(
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'cycle button needs 3 parameters, %d received: %s',
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#params, table.concat(params, '/')
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))
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else
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local state_configs = split(params[3], ' */ *')
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local states = {}
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for _, state_config in ipairs(state_configs) do
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local active = false
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if state_config:sub(-1) == '!' then
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active = true
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state_config = state_config:sub(1, -2)
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end
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local state_params = split(state_config, ' *= *')
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local value, icon = state_params[1], state_params[2] or params[1]
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states[#states + 1] = {value = value, icon = icon, active = active}
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end
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local element = CycleButton:new('control_' .. i, {
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render_order = self.render_order,
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prop = params[2],
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anchor_id = 'controls',
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states = states,
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tooltip = tooltip,
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})
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table_assign(control, {element = element, sizing = 'static', scale = 1, ratio = 1})
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if badge then self:register_badge_updater(badge, element) end
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end
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elseif kind == 'speed' then
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if not Elements.speed then
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local element = Speed:new({anchor_id = 'controls', render_order = self.render_order})
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local scale = tonumber(params[1]) or 1.3
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table_assign(control, {
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element = element, sizing = 'dynamic', scale = scale, ratio = 3.5, ratio_min = 2,
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})
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else
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msg.error('there can only be 1 speed slider')
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end
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else
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msg.error('unknown element kind "' .. kind .. '"')
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break
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end
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self.controls[#self.controls + 1] = control
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end
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self:reflow()
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end
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function Controls:reflow()
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-- Populate the layout only with items that match current disposition
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self.layout = {}
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for _, control in ipairs(self.controls) do
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local matches = true
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for prop, value in pairs(control.dispositions) do
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if state[prop] ~= value then
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matches = false
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break
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end
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end
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if control.element then control.element.enabled = matches end
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if matches then self.layout[#self.layout + 1] = control end
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end
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self:update_dimensions()
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Elements:trigger('controls_reflow')
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end
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---@param badge string
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---@param element Element An element that supports `badge` property.
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function Controls:register_badge_updater(badge, element)
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local prop_and_limit = split(badge, ' *> *')
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local prop, limit = prop_and_limit[1], tonumber(prop_and_limit[2] or -1)
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local observable_name, serializer, is_external_prop = prop, nil, false
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if itable_index_of({'sub', 'audio', 'video'}, prop) then
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observable_name = 'track-list'
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serializer = function(value)
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local count = 0
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for _, track in ipairs(value) do if track.type == prop then count = count + 1 end end
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return count
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end
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else
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local parts = split(prop, '@')
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-- Support both new `prop@owner` and old `@prop` syntaxes
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if #parts > 1 then prop, is_external_prop = parts[1] ~= '' and parts[1] or parts[2], true end
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serializer = function(value) return value and (type(value) == 'table' and #value or tostring(value)) or nil end
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end
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local function handler(_, value)
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local new_value = serializer(value) --[[@as nil|string|integer]]
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local value_number = tonumber(new_value)
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if value_number then new_value = value_number > limit and value_number or nil end
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element.badge = new_value
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request_render()
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end
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if is_external_prop then
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element['on_external_prop_' .. prop] = function(_, value) handler(prop, value) end
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else
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self:observe_mp_property(observable_name, handler)
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end
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end
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function Controls:get_visibility()
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return Elements:v('speed', 'dragging') and 1 or Elements:maybe('timeline', 'get_is_hovered')
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and -1 or Element.get_visibility(self)
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end
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function Controls:update_dimensions()
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local window_border = Elements:v('window_border', 'size', 0)
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local size = round(options.controls_size * state.scale)
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local spacing = round(options.controls_spacing * state.scale)
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local margin = round(options.controls_margin * state.scale)
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-- Disable when not enough space
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local available_space = display.height - window_border * 2 - Elements:v('top_bar', 'size', 0)
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- Elements:v('timeline', 'size', 0)
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self.enabled = available_space > size + 10
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-- Reset hide/enabled flags
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for c, control in ipairs(self.layout) do
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control.hide = false
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if control.element then control.element.enabled = self.enabled end
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end
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if not self.enabled then return end
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-- Container
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self.bx = display.width - window_border - margin
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self.by = Elements:v('timeline', 'ay', display.height - window_border) - margin
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self.ax, self.ay = window_border + margin, self.by - size
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-- Controls
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local available_width, statics_width = self.bx - self.ax, 0
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local min_content_width = statics_width
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local max_dynamics_width, dynamic_units, spaces, gaps = 0, 0, 0, 0
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-- Calculate statics_width, min_content_width, and count spaces & gaps
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for c, control in ipairs(self.layout) do
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if control.sizing == 'space' then
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spaces = spaces + 1
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elseif control.sizing == 'gap' then
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gaps = gaps + control.scale * control.ratio
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elseif control.sizing == 'static' then
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local width = size * control.scale * control.ratio + (c ~= #self.layout and spacing or 0)
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statics_width = statics_width + width
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min_content_width = min_content_width + width
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elseif control.sizing == 'dynamic' then
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local spacing = (c ~= #self.layout and spacing or 0)
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statics_width = statics_width + spacing
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min_content_width = min_content_width + size * control.scale * control.ratio_min + spacing
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max_dynamics_width = max_dynamics_width + size * control.scale * control.ratio
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dynamic_units = dynamic_units + control.scale * control.ratio
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end
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end
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-- Hide & disable elements in the middle until we fit into available width
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if min_content_width > available_width then
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local i = math.ceil(#self.layout / 2 + 0.1)
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for a = 0, #self.layout - 1, 1 do
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i = i + (a * (a % 2 == 0 and 1 or -1))
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local control = self.layout[i]
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if control.sizing ~= 'gap' and control.sizing ~= 'space' then
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control.hide = true
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if control.element then control.element.enabled = false end
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if control.sizing == 'static' then
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local width = size * control.scale * control.ratio
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min_content_width = min_content_width - width - spacing
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statics_width = statics_width - width - spacing
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elseif control.sizing == 'dynamic' then
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statics_width = statics_width - spacing
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min_content_width = min_content_width - size * control.scale * control.ratio_min - spacing
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max_dynamics_width = max_dynamics_width - size * control.scale * control.ratio
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dynamic_units = dynamic_units - control.scale * control.ratio
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end
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if min_content_width < available_width then break end
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end
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end
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end
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-- Lay out the elements
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local current_x = self.ax
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local width_for_dynamics = available_width - statics_width
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local empty_space_width = width_for_dynamics - max_dynamics_width
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local width_for_gaps = math.min(empty_space_width, size * gaps)
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local individual_space_width = spaces > 0 and ((empty_space_width - width_for_gaps) / spaces) or 0
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for c, control in ipairs(self.layout) do
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if not control.hide then
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local sizing, element, scale, ratio = control.sizing, control.element, control.scale, control.ratio
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local width, height = 0, 0
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if sizing == 'space' then
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if individual_space_width > 0 then width = individual_space_width end
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elseif sizing == 'gap' then
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if width_for_gaps > 0 then width = width_for_gaps * (ratio / gaps) end
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elseif sizing == 'static' then
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height = size * scale
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width = height * ratio
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elseif sizing == 'dynamic' then
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height = size * scale
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width = max_dynamics_width < width_for_dynamics
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and height * ratio or width_for_dynamics * ((scale * ratio) / dynamic_units)
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end
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local bx = current_x + width
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if element then element:set_coordinates(round(current_x), round(self.by - height), bx, self.by) end
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current_x = element and bx + spacing or bx
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end
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end
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Elements:update_proximities()
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request_render()
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end
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function Controls:on_dispositions() self:reflow() end
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function Controls:on_display() self:update_dimensions() end
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function Controls:on_prop_border() self:update_dimensions() end
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function Controls:on_prop_title_bar() self:update_dimensions() end
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function Controls:on_prop_fullormaxed() self:update_dimensions() end
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function Controls:on_timeline_enabled() self:update_dimensions() end
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function Controls:destroy_elements()
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for _, control in ipairs(self.controls) do
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if control.element then control.element:destroy() end
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end
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end
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function Controls:on_options()
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self:destroy_elements()
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self:init_options()
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end
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return Controls
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