2018-05-12 21:24:43 +00:00
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local Blitbuffer = require("ffi/blitbuffer")
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local ButtonTable = require("ui/widget/buttontable")
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local CenterContainer = require("ui/widget/container/centercontainer")
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local CssTweaks = require("ui/data/css_tweaks")
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local DataStorage = require("datastorage")
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local Device = require("device")
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local Event = require("ui/event")
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local Font = require("ui/font")
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local FrameContainer = require("ui/widget/container/framecontainer")
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local Geom = require("ui/geometry")
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local GestureRange = require("ui/gesturerange")
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local InfoMessage = require("ui/widget/infomessage")
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local InputContainer = require("ui/widget/container/inputcontainer")
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local MovableContainer = require("ui/widget/container/movablecontainer")
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local Size = require("ui/size")
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local TextBoxWidget = require("ui/widget/textboxwidget")
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local UIManager = require("ui/uimanager")
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local VerticalGroup = require("ui/widget/verticalgroup")
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local VerticalSpan = require("ui/widget/verticalspan")
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local lfs = require("libs/libkoreader-lfs")
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local logger = require("logger")
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local util = require("util")
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local _ = require("gettext")
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local Screen = Device.screen
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local T = require("ffi/util").template
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-- Simple widget for showing tweak info
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local TweakInfoWidget = InputContainer:new{
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tweak = nil,
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is_global_default = nil,
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toggle_global_default_callback = function() end,
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modal = true,
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width = Screen:getWidth()*3/4,
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}
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function TweakInfoWidget:init()
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local tweak = self.tweak
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if Device:isTouchDevice() then
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self.ges_events.TapClose = {
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GestureRange:new{
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ges = "tap",
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range = Geom:new{
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x = 0, y = 0,
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w = Screen:getWidth(),
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h = Screen:getHeight(),
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}
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}
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}
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end
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if Device:hasKeys() then
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self.key_events = {
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Close = { {"Back"}, doc = "cancel" }
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}
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end
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local content = VerticalGroup:new{
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TextBoxWidget:new{
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text = tweak.title,
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bold = true,
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face = Font:getFace("infofont"),
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width = self.width,
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},
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VerticalSpan:new{
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width = Size.padding.large,
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},
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}
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if tweak.description then
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table.insert(content,
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TextBoxWidget:new{
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text = tweak.description,
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face = Font:getFace("smallinfofont"),
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width = self.width,
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}
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)
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table.insert(content, VerticalSpan:new{
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width = Size.padding.large,
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})
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end
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-- This css TextBoxWidget may make the widget overflow screen with
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-- large css text. For now, we don't bother with the complicated
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-- setup of a scrollable ScrollTextWidget.
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local css = tweak.css
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if not css and tweak.css_path then
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css = ""
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local f = io.open(tweak.css_path, "r")
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if f then
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css = f:read("*all")
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f:close()
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end
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end
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css = css:gsub("^%s+", ""):gsub("%s+$", "")
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table.insert(content, FrameContainer:new{
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bordersize = Size.border.thin,
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padding = Size.padding.large,
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TextBoxWidget:new{
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text = css,
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face = Font:getFace("infont", 16),
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width = self.width - 2*Size.padding.large,
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}
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})
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if self.is_global_default then
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table.insert(content, VerticalSpan:new{
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width = Size.padding.large,
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})
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table.insert(content,
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TextBoxWidget:new{
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text = _("This tweak is applied on all books."),
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face = Font:getFace("smallinfofont"),
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width = self.width,
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}
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)
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end
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content = FrameContainer:new{
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bordersize = 0,
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padding = Size.padding.large,
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padding_top = Size.padding.default,
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content,
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}
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local buttons = {
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{
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text = _("Close"),
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callback = function()
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UIManager:close(self)
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end,
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},
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{
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text = self.is_global_default and _("Don't use on all books") or _("Use on all books"),
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callback = function()
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self.toggle_global_default_callback()
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UIManager:close(self)
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end,
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},
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}
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local button_table = ButtonTable:new{
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width = content:getSize().w,
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button_font_face = "cfont",
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button_font_size = 20,
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buttons = { buttons },
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zero_sep = true,
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show_parent = self,
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}
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self.movable = MovableContainer:new{
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FrameContainer:new{
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background = Blitbuffer.COLOR_WHITE,
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radius = Size.radius.window,
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margin = Size.margin.default,
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padding = Size.padding.default,
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padding_bottom = 0, -- no padding below buttontable
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VerticalGroup:new{
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align = "left",
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content,
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button_table,
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}
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}
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}
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self[1] = CenterContainer:new{
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dimen = Screen:getSize(),
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self.movable
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}
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end
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function TweakInfoWidget:onShow()
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UIManager:setDirty(self, function()
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return "ui", self.movable.dimen
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end)
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end
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function TweakInfoWidget:onCloseWidget()
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UIManager:setDirty(nil, function()
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return "ui", self.movable.dimen
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end)
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end
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function TweakInfoWidget:onClose()
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UIManager:close(self)
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return true
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end
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function TweakInfoWidget:onTapClose(arg, ges)
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if ges.pos:notIntersectWith(self.movable.dimen) then
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self:onClose()
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return true
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end
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return false
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end
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function TweakInfoWidget:onSelect()
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if self.selected.x == 1 then
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self:toggle_global_default_callback()
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end
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UIManager:close(self)
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return true
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end
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-- Ordering function for tweaks when appened to css_test.
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-- The order needs to be consistent for crengine's stylesheet change
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-- detection code to not invalidate cache across loadings.
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local function tweakOrdering(l, r)
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if l.priority ~= r.priority then
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-- lower priority first in the CSS text
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return l.priority < r.priority
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end
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-- same priority: order by ids
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return l.id < r.id
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end
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-- Reader component for managing tweaks. The aggregated css_text
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-- is actually requested from us and applied by ReaderTypeset
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local ReaderStyleTweak = InputContainer:new{
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tweaks_by_id = nil,
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tweaks_table = nil, -- sub-menu items
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nb_enabled_tweaks = 0, -- for use by main menu item
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css_text = nil, -- aggregated css text from tweaks individual css snippets
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enabled = true, -- allows for toggling between selected tweaks / none
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}
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function ReaderStyleTweak:isTweakEnabled(tweak_id)
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local g_enabled = false
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local enabled = false
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if self.global_tweaks[tweak_id] then
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enabled = true
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g_enabled = true
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end
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if self.doc_tweaks[tweak_id] == true then
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enabled = true
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elseif self.doc_tweaks[tweak_id] == false then
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enabled = false
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end
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return enabled, g_enabled
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end
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function ReaderStyleTweak:nbTweaksEnabled(sub_item_table)
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local nb_enabled = 0
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local nb_found = 0
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for _, item in ipairs(sub_item_table) do
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if item.sub_item_table then
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local sub_nb_enabled, sub_nb_found = self:nbTweaksEnabled(item.sub_item_table)
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nb_enabled = nb_enabled + sub_nb_enabled
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nb_found = nb_found + sub_nb_found
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elseif item.tweak_id then
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if self:isTweakEnabled(item.tweak_id) then
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nb_enabled = nb_enabled + 1
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end
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nb_found = nb_found + 1
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end
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end
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return nb_enabled, nb_found
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end
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-- Called by ReaderTypeset, returns the already built string
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function ReaderStyleTweak:getCssText()
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return self.css_text
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end
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-- Build css_text, and request ReaderTypeset to apply it if wanted
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function ReaderStyleTweak:updateCssText(apply)
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if self.enabled then
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local tweaks = {}
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for id, enabled in pairs(self.global_tweaks) do
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-- there are only enabled tweaks in global_tweaks, but we don't
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2018-05-20 23:19:36 +00:00
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-- add them here if they appear in doc_tweaks (if enabled in
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-- doc_tweaks, they'll be added below; if disabled, they should
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-- not be added)
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if self.doc_tweaks[id] == nil then
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2018-05-12 21:24:43 +00:00
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table.insert(tweaks, self.tweaks_by_id[id])
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end
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end
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for id, enabled in pairs(self.doc_tweaks) do
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-- there are enabled (true) and disabled (false) tweaks in doc_tweaks
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if self.doc_tweaks[id] == true then
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table.insert(tweaks, self.tweaks_by_id[id])
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end
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end
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table.sort(tweaks, tweakOrdering)
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self.nb_enabled_tweaks = 0
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local css_snippets = {}
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for _, tweak in ipairs(tweaks) do
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self.nb_enabled_tweaks = self.nb_enabled_tweaks + 1
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local css = tweak.css
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if not css and tweak.css_path then
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css = ""
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local f = io.open(tweak.css_path, "r")
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if f then
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css = f:read("*all")
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f:close()
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end
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-- We could store what's been read into tweak.css to avoid
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-- re-reading it, but this will allow a user to experiment
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-- wihout having to restart KOReader
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end
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css = css:gsub("^%s+", ""):gsub("%s+$", "")
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table.insert(css_snippets, css)
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end
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self.css_text = table.concat(css_snippets, "\n")
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logger.dbg("made tweak css:\n".. self.css_text .. "[END]")
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else
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self.css_text = nil
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logger.dbg("made no tweak css (Style tweaks disabled)")
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end
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if apply then
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self.ui:handleEvent(Event:new("ApplyStyleSheet"))
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end
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end
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function ReaderStyleTweak:onReadSettings(config)
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self.enabled = not (config:readSetting("style_tweaks_enabled") == false)
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self.doc_tweaks = config:readSetting("style_tweaks") or {}
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self.global_tweaks = G_reader_settings:readSetting("style_tweaks") or {}
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self:updateCssText()
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end
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function ReaderStyleTweak:onSaveSettings()
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if self.enabled then
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self.ui.doc_settings:delSetting("style_tweaks_enabled")
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else
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self.ui.doc_settings:saveSetting("style_tweaks_enabled", false)
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end
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self.ui.doc_settings:saveSetting("style_tweaks", util.tableSize(self.doc_tweaks) > 0 and self.doc_tweaks or nil)
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G_reader_settings:saveSetting("style_tweaks", util.tableSize(self.global_tweaks) > 0 and self.global_tweaks or nil)
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end
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function ReaderStyleTweak:init()
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self.tweaks_by_id = {}
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self.tweaks_table = {}
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-- Add first item of sub-menu, that allows toggling between
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-- enabled tweaks / none (without the need to disable each of
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-- them)
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table.insert(self.tweaks_table, {
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text = _("Enable style tweaks (hold for info)"),
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checked_func = function() return self.enabled end,
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callback = function()
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self.enabled = not self.enabled
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self:updateCssText(true) -- apply it immediately
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end,
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hold_callback = function()
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UIManager:show(InfoMessage:new{
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2018-08-01 17:29:03 +00:00
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text = _(
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[[Style tweaks allow changing small parts of book styles (including the publisher/embedded styles) to make visual adjustments or disable unwanted publisher layout choices.
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2018-05-12 21:24:43 +00:00
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Some tweaks may be useful with some books, while resulting in undesirable effects with others.
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You can enable individual tweaks on this book with a tap, or view more details about a tweak and enable it on all books with hold.]])
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})
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end,
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separator = true,
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})
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-- Single function for use as enabled_func
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local is_enabled = function() return self.enabled end
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-- Generic function to recursively build a sub_item_table (as expected
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-- by TouchMenu) from a table of tweak definitions (like CssTweaks from
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-- css_tweaks.lua, or like the one we build from user styletweaks
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-- directory files and sub-directories)
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local addTweakMenuItem
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addTweakMenuItem = function(menu, item)
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if type(item) == "table" and #item > 0 then -- sub-menu
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local sub_item_table = {}
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for _, it in ipairs(item) do
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addTweakMenuItem(sub_item_table, it) -- recurse
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end
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table.insert(menu, {
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text_func = function()
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local text = item.title or "### undefined submenu title ###"
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local nb_enabled, nb_found = self:nbTweaksEnabled(sub_item_table) -- luacheck: no unused
|
|
|
|
-- We could add nb_enabled/nb_found, but that makes for
|
|
|
|
-- a busy/ugly menu
|
|
|
|
-- text = string.format("%s (%d/%d)", text, nb_enabled, nb_found)
|
|
|
|
if nb_enabled > 0 then
|
|
|
|
text = string.format("%s (%d)", text, nb_enabled)
|
|
|
|
end
|
|
|
|
return text
|
|
|
|
end,
|
|
|
|
enabled_func = is_enabled,
|
|
|
|
sub_item_table = sub_item_table,
|
2018-05-24 22:22:08 +00:00
|
|
|
separator = item.separator,
|
2018-05-12 21:24:43 +00:00
|
|
|
})
|
|
|
|
elseif item.id then -- tweak menu item
|
|
|
|
-- Set a default priority of 0 if item doesn't have one
|
|
|
|
if not item.priority then item.priority = 0 end
|
|
|
|
self.tweaks_by_id[item.id] = item
|
|
|
|
table.insert(menu, {
|
|
|
|
tweak_id = item.id,
|
|
|
|
enabled_func = is_enabled,
|
|
|
|
checked_func = function() return self:isTweakEnabled(item.id) end,
|
|
|
|
-- text = item.title or "### undefined tweak title ###",
|
|
|
|
text_func = function()
|
|
|
|
local title = item.title or "### undefined tweak title ###"
|
|
|
|
if self.global_tweaks[item.id] then
|
|
|
|
title = title .. " ★"
|
|
|
|
end
|
|
|
|
return title
|
|
|
|
end,
|
2018-09-04 21:55:58 +00:00
|
|
|
hold_callback = function(touchmenu_instance)
|
2018-05-12 21:24:43 +00:00
|
|
|
UIManager:show(TweakInfoWidget:new{
|
|
|
|
tweak = item,
|
|
|
|
is_global_default = self.global_tweaks[item.id],
|
|
|
|
toggle_global_default_callback = function()
|
|
|
|
if self.global_tweaks[item.id] then
|
|
|
|
self.global_tweaks[item.id] = nil
|
|
|
|
else
|
|
|
|
self.global_tweaks[item.id] = true
|
|
|
|
end
|
2018-09-04 21:55:58 +00:00
|
|
|
touchmenu_instance:updateItems()
|
2018-05-12 21:24:43 +00:00
|
|
|
self:updateCssText(true) -- apply it immediately
|
|
|
|
end
|
|
|
|
})
|
|
|
|
end,
|
|
|
|
callback = function()
|
|
|
|
-- enable/disable only for this book
|
|
|
|
local enabled, g_enabled = self:isTweakEnabled(item.id)
|
|
|
|
if enabled then
|
|
|
|
if g_enabled then
|
|
|
|
-- if globaly enabled, mark it as disabled
|
|
|
|
-- for this document only
|
|
|
|
self.doc_tweaks[item.id] = false
|
|
|
|
else
|
|
|
|
self.doc_tweaks[item.id] = nil
|
|
|
|
end
|
|
|
|
else
|
|
|
|
self.doc_tweaks[item.id] = true
|
|
|
|
end
|
|
|
|
self:updateCssText(true) -- apply it immediately
|
|
|
|
end,
|
|
|
|
separator = item.separator,
|
|
|
|
})
|
|
|
|
else
|
|
|
|
table.insert(menu, {
|
|
|
|
text = item.if_empty_menu_title or _("This section is empty"),
|
|
|
|
enabled = false,
|
|
|
|
})
|
|
|
|
end
|
|
|
|
end
|
|
|
|
|
|
|
|
-- Add each of CssTweaks' top-level items as a sub-menu
|
|
|
|
for _, item in ipairs(CssTweaks) do
|
|
|
|
addTweakMenuItem(self.tweaks_table, item)
|
|
|
|
end
|
|
|
|
|
|
|
|
-- Users can put their own style tweaks as individual .css files into
|
|
|
|
-- koreader/styletweaks/ directory. These can be organized into
|
|
|
|
-- sub-directories that will show up as sub-menus.
|
|
|
|
local user_styletweaks_dir = DataStorage:getDataDir() .. "/styletweaks"
|
|
|
|
local user_tweaks_table = { title = _("User style tweaks") }
|
|
|
|
|
|
|
|
-- Build a tweak definition table from the content of a directory
|
|
|
|
local process_tweaks_dir
|
|
|
|
process_tweaks_dir = function(dir, item_table, if_empty_menu_title)
|
|
|
|
local file_list = {}
|
|
|
|
local dir_list = {}
|
|
|
|
if lfs.attributes(dir, "mode") == "directory" then
|
|
|
|
for f in lfs.dir(dir) do
|
|
|
|
if f ~= "." and f ~= ".." then
|
|
|
|
local mode = lfs.attributes(dir.."/"..f, "mode")
|
|
|
|
if mode == "directory" then
|
|
|
|
table.insert(dir_list, f)
|
|
|
|
elseif mode == "file" and string.match(f, "%.css$") then
|
|
|
|
table.insert(file_list, f)
|
|
|
|
end
|
|
|
|
end
|
|
|
|
end
|
|
|
|
end
|
|
|
|
table.sort(dir_list)
|
|
|
|
table.sort(file_list)
|
|
|
|
for __, subdir in ipairs(dir_list) do
|
|
|
|
local sub_item_table = { title = subdir:gsub("_", " ") }
|
|
|
|
process_tweaks_dir(dir.."/"..subdir, sub_item_table)
|
|
|
|
table.insert(item_table, sub_item_table)
|
|
|
|
end
|
|
|
|
for __, file in ipairs(file_list) do
|
|
|
|
local title = file:gsub("%.css$", ""):gsub("_", " ")
|
|
|
|
local filepath = dir.."/"..file
|
|
|
|
table.insert(item_table, {
|
|
|
|
title = title,
|
|
|
|
id = file, -- keep ".css" in id, to distinguish between koreader/user tweaks
|
|
|
|
description = T(_("User style tweak at %1"), filepath),
|
|
|
|
priority = 10, -- give user tweaks a higher priority
|
|
|
|
css_path = filepath,
|
|
|
|
})
|
|
|
|
end
|
|
|
|
if #item_table == 0 then
|
|
|
|
table.insert(item_table, {
|
|
|
|
if_empty_menu_title = if_empty_menu_title or _("No CSS tweak found in this directory"),
|
|
|
|
})
|
|
|
|
end
|
|
|
|
end
|
|
|
|
local if_empty_menu_title = _("Add your own tweaks in koreader/styletweaks/")
|
|
|
|
process_tweaks_dir(user_styletweaks_dir, user_tweaks_table, if_empty_menu_title)
|
|
|
|
self.tweaks_table[#self.tweaks_table].separator = true
|
|
|
|
addTweakMenuItem(self.tweaks_table, user_tweaks_table)
|
|
|
|
|
|
|
|
self.ui.menu:registerToMainMenu(self)
|
|
|
|
end
|
|
|
|
|
|
|
|
function ReaderStyleTweak:addToMainMenu(menu_items)
|
|
|
|
-- insert table to main reader menu
|
|
|
|
menu_items.style_tweaks = {
|
|
|
|
text_func = function()
|
|
|
|
if self.enabled and self.nb_enabled_tweaks > 0 then
|
|
|
|
return T(_("Style tweaks (%1)"), self.nb_enabled_tweaks)
|
|
|
|
else
|
|
|
|
return _("Style tweaks")
|
|
|
|
end
|
|
|
|
end,
|
|
|
|
sub_item_table = self.tweaks_table,
|
|
|
|
}
|
|
|
|
end
|
|
|
|
|
|
|
|
return ReaderStyleTweak
|