koreader/frontend/apps/reader/modules/readercoptlistener.lua

local Event = require("ui/event")
local Device = require("device")
local EventListener = require("ui/widget/eventlistener")
local InfoMessage = require("ui/widget/infomessage")
local UIManager = require("ui/uimanager")
local T = require("ffi/util").template
local _ = require("gettext")

local ReaderCoptListener = EventListener:new{}

function ReaderCoptListener:onReadSettings(config)
    local view_mode = config:readSetting("copt_view_mode") or
           G_reader_settings:readSetting("copt_view_mode")
    if view_mode == 0 then
        self.ui:registerPostReadyCallback(function()
            self.view:onSetViewMode("page")
        end)
    elseif view_mode == 1 then
        self.ui:registerPostReadyCallback(function()
            self.view:onSetViewMode("scroll")
        end)
    end

    self.title = G_reader_settings:readSetting("cre_header_title") or 1
    self.clock = G_reader_settings:readSetting("cre_header_clock") or 1
    self.page_number = G_reader_settings:readSetting("cre_header_page_number") or 1
    self.page_count = G_reader_settings:readSetting("cre_header_page_count") or 1
    self.reading_percent = G_reader_settings:readSetting("cre_header_reading_percent") or 0
    self.battery = G_reader_settings:readSetting("cre_header_battery") or 1
    self.battery_percent = G_reader_settings:readSetting("cre_header_battery_percent") or 0
    self.chapter_marks = G_reader_settings:readSetting("cre_header_chapter_marks") or 1

    self.ui.document._document:setIntProperty("window.status.title", self.title)
    self.ui.document._document:setIntProperty("window.status.clock", self.clock)
    self.ui.document._document:setIntProperty("window.status.pos.page.number", self.page_number)
    self.ui.document._document:setIntProperty("window.status.pos.page.count", self.page_count)
    self.ui.document._document:setIntProperty("crengine.page.header.chapter.marks", self.chapter_marks)
    self.ui.document._document:setIntProperty("window.status.battery", self.battery)
    self.ui.document._document:setIntProperty("window.status.battery.percent", self.battery_percent)
    self.ui.document._document:setIntProperty("window.status.pos.percent", self.reading_percent)

    local status_line = config:readSetting("copt_status_line") or G_reader_settings:readSetting("copt_status_line") or 1
    self.ui:handleEvent(Event:new("SetStatusLine", status_line, true))
end

function ReaderCoptListener:onSetFontSize(font_size)
    self.document.configurable.font_size = font_size
end

function ReaderCoptListener:setAndSave(setting, property, value)
    self.ui.document._document:setIntProperty(property, value)
    G_reader_settings:saveSetting(setting, value)
    UIManager:broadcastEvent(Event:new("SetStatusLine", self.document.configurable.status_line, true))
end

local about_text = _([[
In CRE documents, an alternative status bar can be displayed at the top of the screen, with or without the regular bottom status bar.

Enabling this alt status bar, per document or by default, can be done in the bottom menu.

The alternative status bar can be configured here.]])

function ReaderCoptListener:getAltStatusBarMenu()
    return {
        text = _("Alt status bar"),
        separator = true,
        sub_item_table = {
            {
                text = _("About alternate status bar"),
                keep_menu_open = true,
                callback = function()
                    UIManager:show(InfoMessage:new{
                        text = about_text,
                    })
                end,
                separator = true,
            },
            {
                text = _("Title"),
                checked_func = function()
                    return self.title == 1
                end,
                callback = function()
                    self.title = self.title == 0 and 1 or 0
                    self:setAndSave("cre_header_title", "window.status.title", self.title)
                end,
            },
            {
                text = _("Clock"),
                checked_func = function()
                    return self.clock == 1
                end,
                callback = function()
                    self.clock = self.clock == 0 and 1 or 0
                    self:setAndSave("cre_header_clock", "window.status.clock", self.clock)
                end,
            },
            {
                text = _("Page number"),
                checked_func = function()
                    return self.page_number == 1
                end,
                callback = function()
                    self.page_number = self.page_number == 0 and 1 or 0
                    self:setAndSave("cre_header_page_number", "window.status.pos.page.number", self.page_number)
                end,
            },
            {
                text = _("Page count"),
                checked_func = function()
                    return self.page_count == 1
                end,
                callback = function()
                    self.page_count = self.page_count == 0 and 1 or 0
                    self:setAndSave("cre_header_page_count", "window.status.pos.page.count", self.page_count)
                end,
            },
            {
                text = _("Reading percentage"),
                checked_func = function()
                    return self.reading_percent == 1
                end,
                callback = function()
                    self.reading_percent = self.reading_percent == 0 and 1 or 0
                    self:setAndSave("cre_header_reading_percent", "window.status.pos.percent", self.reading_percent)
                end,
            },
            {
                text = _("Battery"),
                checked_func = function()
                    return self.battery == 1
                end,
                callback = function()
                    self.battery = self.battery == 0 and 1 or 0
                    self:setAndSave("cre_header_battery", "window.status.battery", self.battery)
                end,
            },
            {
                text = _("Battery percentage"),
                enabled_func = function()
                    return self.battery == 1
                end,
                checked_func = function()
                    return self.battery_percent == 1
                end,
                callback = function()
                    self.battery_percent = self.battery_percent == 0 and 1 or 0
                    self:setAndSave("cre_header_battery_percent", "window.status.battery.percent", self.battery_percent)
                end,
            },
            {
                text = _("Chapter marks"),
                checked_func = function()
                    return self.chapter_marks == 1
                end,
                callback = function()
                    self.chapter_marks = self.chapter_marks == 0 and 1 or 0
                    self:setAndSave("cre_header_chapter_marks", "crengine.page.header.chapter.marks", self.chapter_marks)
                end,
                separator = true,
            },
            {
                keep_menu_open = true,
                text_func = function()
                    return T(_("Top status bar font size (%1)"), G_reader_settings:readSetting("cre_header_status_font_size") or 20 )
                end,
                callback = function(touchmenu_instance)
                    local SpinWidget = require("ui/widget/spinwidget")
                    local start_size = G_reader_settings:readSetting("cre_header_status_font_size") or 20
                    local size_spinner = SpinWidget:new{
                        width = math.floor(Device.screen:getWidth() * 0.6),
                        value = start_size,
                        value_min = 8,
                        value_max = 36,
                        default_value = 14,
                        title_text =  _("Size of top status bar"),
                        ok_text = _("Set size"),
                        callback = function(spin)
                            self:setAndSave("cre_header_status_font_size", "crengine.page.header.font.size", spin.value)
                            if touchmenu_instance then touchmenu_instance:updateItems() end
                        end
                    }
                    UIManager:show(size_spinner)
                end,
            },
        },
    }
end

return ReaderCoptListener