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

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Lua
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local InputContainer = require("ui/widget/container/inputcontainer")
local CenterContainer = require("ui/widget/container/centercontainer")
local RightContainer = require("ui/widget/container/rightcontainer")
local BottomContainer = require("ui/widget/container/bottomcontainer")
local FrameContainer = require("ui/widget/container/framecontainer")
local ProgressWidget = require("ui/widget/progresswidget")
local HorizontalGroup = require("ui/widget/horizontalgroup")
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local TextWidget = require("ui/widget/textwidget")
local GestureRange = require("ui/gesturerange")
local UIManager = require("ui/uimanager")
local Device = require("device")
local Screen = require("device").screen
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local Geom = require("ui/geometry")
local Event = require("ui/event")
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local Font = require("ui/font")
local DEBUG = require("dbg")
local Blitbuffer = require("ffi/blitbuffer")
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local ReaderFooter = InputContainer:new{
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mode = 1,
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visible = true,
pageno = nil,
pages = nil,
toc_level = 0,
max_ticks = 100,
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progress_percentage = 0.0,
progress_text = nil,
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text_font_face = "ffont",
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text_font_size = DMINIBAR_FONT_SIZE,
bar_height = Screen:scaleBySize(DMINIBAR_HEIGHT),
height = Screen:scaleBySize(DMINIBAR_CONTAINER_HEIGHT),
padding = Screen:scaleBySize(10),
}
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function ReaderFooter:init()
self.pageno = self.view.state.page
self.pages = self.view.document:getPageCount()
local text_default = ""
if DMINIBAR_ALL_AT_ONCE then
local info = {}
if DMINIBAR_BATTERY then
table.insert(info, "B:100%")
end
if DMINIBAR_TIME then
table.insert(info, "WW:WW")
end
if DMINIBAR_PAGES then
table.insert(info, "0000 / 0000")
end
if DMINIBAR_NEXT_CHAPTER then
table.insert(info, "=> 000")
end
text_default = table.concat(info, " | ")
else
text_default = string.format(" %d / %d ", self.pages, self.pages)
end
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self.progress_text = TextWidget:new{
text = text_default,
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face = Font:getFace(self.text_font_face, self.text_font_size),
}
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local text_width = self.progress_text:getSize().w
local ticks_candidates = {}
if self.ui.toc and DMINIBAR_PROGRESS_MARKER then
local max_level = self.ui.toc:getMaxDepth()
for i = 0, -max_level, -1 do
local ticks = self.ui.toc:getTocTicks(i)
if #ticks < self.max_ticks then
table.insert(ticks_candidates, ticks)
end
end
-- find the finest toc ticks by sorting out the largest one
table.sort(ticks_candidates, function(a, b) return #a > #b end)
end
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self.progress_bar = ProgressWidget:new{
width = math.floor(Screen:getWidth() - text_width - self.padding),
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height = self.bar_height,
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percentage = self.progress_percentage,
ticks = ticks_candidates[1] or {},
tick_width = DMINIBAR_TOC_MARKER_WIDTH,
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last = self.pages,
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}
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local horizontal_group = HorizontalGroup:new{}
local bar_container = RightContainer:new{
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dimen = Geom:new{ w = Screen:getWidth() - text_width, h = self.height },
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self.progress_bar,
}
local text_container = CenterContainer:new{
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dimen = Geom:new{ w = text_width, h = self.height },
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self.progress_text,
}
if DMINIBAR_PROGRESSBAR then
table.insert(horizontal_group, bar_container)
end
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table.insert(horizontal_group, text_container)
self[1] = BottomContainer:new{
dimen = Screen:getSize(),
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BottomContainer:new{
dimen = Geom:new{w = Screen:getWidth(), h = self.height*2},
FrameContainer:new{
horizontal_group,
background = Blitbuffer.COLOR_WHITE,
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bordersize = 0,
padding = 0,
}
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}
}
self.dimen = self[1]:getSize()
self:updateFooterPage()
local range = Geom:new{
x = Screen:getWidth()*DTAP_ZONE_MINIBAR.x,
y = Screen:getHeight()*DTAP_ZONE_MINIBAR.y,
w = Screen:getWidth()*DTAP_ZONE_MINIBAR.w,
h = Screen:getHeight()*DTAP_ZONE_MINIBAR.h
}
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if Device:isTouchDevice() then
self.ges_events = {
TapFooter = {
GestureRange:new{
ges = "tap",
range = range,
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},
},
HoldFooter = {
GestureRange:new{
ges = "hold",
range = range,
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},
},
}
end
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self.mode = G_reader_settings:readSetting("reader_footer_mode") or self.mode
self:applyFooterMode()
end
function ReaderFooter:getBatteryInfo()
local powerd = Device:getPowerDevice()
--local state = powerd:isCharging() and -1 or powerd:getCapacity()
return "B:" .. powerd:getCapacity() .. "%"
end
function ReaderFooter:getTimeInfo()
return os.date("%H:%M")
end
function ReaderFooter:getProgressInfo()
return string.format("%d / %d", self.pageno, self.pages)
end
function ReaderFooter:getNextChapterInfo()
local left = self.ui.toc:getChapterPagesLeft(self.pageno, self.toc_level)
return "=> " .. (left and left or self.pages - self.pageno)
end
function ReaderFooter:updateFooterPage()
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if type(self.pageno) ~= "number" then return end
self.progress_bar.percentage = self.pageno / self.pages
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if DMINIBAR_ALL_AT_ONCE then
local info = {}
if DMINIBAR_BATTERY then
table.insert(info, self:getBatteryInfo())
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end
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if DMINIBAR_TIME then
table.insert(info, self:getTimeInfo())
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end
if DMINIBAR_PAGES then
table.insert(info, self:getProgressInfo())
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end
if DMINIBAR_NEXT_CHAPTER then
table.insert(info, self:getNextChapterInfo())
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end
self.progress_text.text = table.concat(info, " | ")
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else
local info = ""
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if self.mode == 1 then
info = self:getProgressInfo()
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elseif self.mode == 2 then
info = self:getTimeInfo()
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elseif self.mode == 3 then
info = self:getNextChapterInfo()
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elseif self.mode == 4 then
info = self:getBatteryInfo()
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end
self.progress_text.text = info
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end
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end
function ReaderFooter:updateFooterPos()
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if type(self.position) ~= "number" then return end
self.progress_bar.percentage = self.position / self.doc_height
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if self.show_time then
self.progress_text.text = self:getTimeInfo()
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else
local percentage = self.progress_bar.percentage
self.progress_text.text = string.format("%1.f", percentage*100) .. "%"
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end
end
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function ReaderFooter:onPageUpdate(pageno)
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self.pageno = pageno
self.pages = self.view.document.info.number_of_pages
self:updateFooterPage()
end
function ReaderFooter:onPosUpdate(pos)
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self.position = pos
self.doc_height = self.view.document.info.doc_height
self:updateFooterPos()
end
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-- recalculate footer sizes when document page count is updated
function ReaderFooter:onUpdatePos()
UIManager:scheduleIn(0.1, function() self:init() end)
end
function ReaderFooter:applyFooterMode(mode)
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-- three modes switcher for reader footer
-- 0 for footer off
-- 1 for footer page info
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-- 2 for footer time info
-- 3 for footer next_chapter info
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-- 4 for battery status
if mode ~= nil then self.mode = mode end
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if self.mode == 0 then
self.view.footer_visible = false
else
self.view.footer_visible = true
end
end
function ReaderFooter:onEnterFlippingMode()
self.orig_mode = self.mode
self:applyFooterMode(1)
end
function ReaderFooter:onExitFlippingMode()
self:applyFooterMode(self.orig_mode)
end
function ReaderFooter:onTapFooter(arg, ges)
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if self.view.flipping_visible then
local pos = ges.pos
local dimen = self.progress_bar.dimen
-- if reader footer is not drawn before the dimen value should be nil
if dimen then
local percentage = (pos.x - dimen.x)/dimen.w
self.ui:handleEvent(Event:new("GotoPercentage", percentage))
end
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else
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self.mode = (self.mode + 1) % 5
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if DMINIBAR_ALL_AT_ONCE and (self.mode > 1) then
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self.mode = 0
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end
if (self.mode == 1) and not DMINIBAR_PAGES then
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self.mode = 2
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end
if (self.mode == 2) and not DMINIBAR_TIME then
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self.mode = 3
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end
if (self.mode == 3) and not DMINIBAR_NEXT_CHAPTER then
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self.mode = 4
end
if (self.mode == 4) and not DMINIBAR_BATTERY then
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self.mode = 0
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end
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self:applyFooterMode()
G_reader_settings:saveSetting("reader_footer_mode", self.mode)
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end
if self.pageno then
self:updateFooterPage()
else
self:updateFooterPos()
end
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UIManager:setDirty(self.view.dialog, "partial", self[1][1][1].dimen)
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return true
end
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function ReaderFooter:onHoldFooter(arg, ges)
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self.ui:handleEvent(Event:new("ShowGotoDialog"))
return true
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end
function ReaderFooter:onSetStatusLine(status_line)
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self.view.footer_visible = status_line == 1 and true or false
self.ui.document:setStatusLineProp(status_line)
self.ui:handleEvent(Event:new("UpdatePos"))
end
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return ReaderFooter