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330 lines
12 KiB
Lua
330 lines
12 KiB
Lua
local ConfirmBox = require("ui/widget/confirmbox")
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local Event = require("ui/event")
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local InputContainer = require("ui/widget/container/inputcontainer")
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local UIManager = require("ui/uimanager")
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local lfs = require("libs/libkoreader-lfs")
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local _ = require("gettext")
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local Screen = require("device").screen
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local T = require("ffi/util").template
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local ReaderTypeset = InputContainer:new{
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css_menu_title = _("Style"),
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css = nil,
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internal_css = true,
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}
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function ReaderTypeset:init()
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self.ui.menu:registerToMainMenu(self)
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end
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function ReaderTypeset:onReadSettings(config)
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self.css = config:readSetting("css") or G_reader_settings:readSetting("copt_css")
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or self.ui.document.default_css
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local tweaks_css = self.ui.styletweak:getCssText()
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self.ui.document:setStyleSheet(self.css, tweaks_css)
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self.embedded_fonts = config:readSetting("embedded_fonts")
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if self.embedded_fonts == nil then
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-- default to enable embedded fonts
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-- note that it's a bit confusing here:
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-- global settins store 0/1, while document settings store false/true
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-- we leave it that way for now to maintain backwards compatibility
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local global = G_reader_settings:readSetting("copt_embedded_fonts")
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self.embedded_fonts = (global == nil or global == 1) and true or false
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end
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-- As this is new, call it only when embedded_fonts are explicitely disabled
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-- self.ui.document:setEmbeddedFonts(self.embedded_fonts and 1 or 0)
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if not self.embedded_fonts then
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self.ui.document:setEmbeddedFonts(0)
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end
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self.embedded_css = config:readSetting("embedded_css")
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if self.embedded_css == nil then
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-- default to enable embedded CSS
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-- note that it's a bit confusing here:
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-- global settins store 0/1, while document settings store false/true
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-- we leave it that way for now to maintain backwards compatibility
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local global = G_reader_settings:readSetting("copt_embedded_css")
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self.embedded_css = (global == nil or global == 1) and true or false
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end
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self.ui.document:setEmbeddedStyleSheet(self.embedded_css and 1 or 0)
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-- set render DPI
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self.render_dpi = config:readSetting("render_dpi") or
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G_reader_settings:readSetting("copt_render_dpi") or 96
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self:setRenderDPI(self.render_dpi)
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-- uncomment if we want font size to follow DPI changes
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-- self.ui.document:setRenderScaleFontWithDPI(1)
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-- set page margins
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self:onSetPageMargins(
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config:readSetting("copt_page_margins") or
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G_reader_settings:readSetting("copt_page_margins") or
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DCREREADER_CONFIG_MARGIN_SIZES_MEDIUM)
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-- default to disable floating punctuation
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-- the floating punctuation should not be boolean value for the following
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-- expression otherwise a false value will never be returned but numerical
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-- values will survive this expression
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self.floating_punctuation = config:readSetting("floating_punctuation") or
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G_reader_settings:readSetting("floating_punctuation") or 0
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self:toggleFloatingPunctuation(self.floating_punctuation)
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-- default to disable TXT formatting as it does more harm than good
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self.txt_preformatted = config:readSetting("txt_preformatted") or
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G_reader_settings:readSetting("txt_preformatted") or 1
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self:toggleTxtPreFormatted(self.txt_preformatted)
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end
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function ReaderTypeset:onSaveSettings()
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self.ui.doc_settings:saveSetting("css", self.css)
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self.ui.doc_settings:saveSetting("embedded_css", self.embedded_css)
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self.ui.doc_settings:saveSetting("floating_punctuation", self.floating_punctuation)
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self.ui.doc_settings:saveSetting("embedded_fonts", self.embedded_fonts)
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self.ui.doc_settings:saveSetting("render_dpi", self.render_dpi)
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end
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function ReaderTypeset:onToggleEmbeddedStyleSheet(toggle)
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self:toggleEmbeddedStyleSheet(toggle)
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return true
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end
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function ReaderTypeset:onToggleEmbeddedFonts(toggle)
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self:toggleEmbeddedFonts(toggle)
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return true
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end
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-- June 2018: epub.css has been cleaned to be more conforming to HTML specs
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-- and to not include class name based styles (with conditional compatiblity
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-- styles for previously opened documents). It should be usable on all
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-- HTML based documents, except FB2 which has some incompatible specs.
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-- These other css files have not been updated in the same way, and are
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-- kept as-is for when a previously opened document requests one of them.
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local OBSOLETED_CSS = {
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"chm.css",
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"cr3.css",
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"doc.css",
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"dict.css",
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"htm.css",
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"rtf.css",
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"txt.css",
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}
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function ReaderTypeset:onSetRenderDPI(dpi)
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self:setRenderDPI(dpi)
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return true
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end
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function ReaderTypeset:genStyleSheetMenu()
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local getStyleMenuItem = function(text, css_file, separator)
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return {
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text_func = function()
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return text .. (css_file == G_reader_settings:readSetting("copt_css") and " ★" or "")
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end,
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callback = function()
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self:setStyleSheet(css_file or self.ui.document.default_css)
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end,
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hold_callback = function(touchmenu_instance)
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self:makeDefaultStyleSheet(css_file, text, touchmenu_instance)
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end,
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checked_func = function()
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if not css_file then -- "Auto"
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return self.css == self.ui.document.default_css
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end
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return css_file == self.css
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end,
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separator = separator,
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}
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end
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local style_table = {}
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local obsoleted_table = {}
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table.insert(style_table, getStyleMenuItem(_("Clear all external styles"), ""))
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table.insert(style_table, getStyleMenuItem(_("Auto"), nil, true))
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local css_files = {}
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for f in lfs.dir("./data") do
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if lfs.attributes("./data/"..f, "mode") == "file" and string.match(f, "%.css$") then
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css_files[f] = "./data/"..f
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end
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end
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-- Add the 2 main styles
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if css_files["epub.css"] then
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table.insert(style_table, getStyleMenuItem(_("HTML / EPUB (epub.css)"), css_files["epub.css"]))
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css_files["epub.css"] = nil
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end
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if css_files["fb2.css"] then
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table.insert(style_table, getStyleMenuItem(_("FictionBook (fb2.css)"), css_files["fb2.css"], true))
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css_files["fb2.css"] = nil
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end
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-- Add the obsoleted ones to the Obsolete sub menu
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local obsoleted_css = {} -- for check_func of the Obsolete sub menu itself
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for __, css in ipairs(OBSOLETED_CSS) do
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obsoleted_css[css_files[css]] = css
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if css_files[css] then
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table.insert(obsoleted_table, getStyleMenuItem(css, css_files[css]))
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css_files[css] = nil
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end
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end
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-- Sort and add the remaining (user added) files if any
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local user_files = {}
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for css, css_file in pairs(css_files) do
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table.insert(user_files, css)
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end
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table.sort(user_files)
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for __, css in ipairs(user_files) do
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table.insert(style_table, getStyleMenuItem(css, css_files[css]))
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end
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style_table[#style_table].separator = true
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table.insert(style_table, {
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text_func = function()
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local text = _("Obsolete")
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if obsoleted_css[self.css] then
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text = T(_("Obsolete (%1)"), obsoleted_css[self.css])
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end
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if obsoleted_css[G_reader_settings:readSetting("copt_css")] then
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text = text .. " ★"
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end
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return text
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end,
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sub_item_table = obsoleted_table,
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checked_func = function()
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return obsoleted_css[self.css] ~= nil
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end
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})
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return style_table
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end
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function ReaderTypeset:onApplyStyleSheet()
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local tweaks_css = self.ui.styletweak:getCssText()
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self.ui.document:setStyleSheet(self.css, tweaks_css)
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self.ui:handleEvent(Event:new("UpdatePos"))
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return true
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end
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function ReaderTypeset:setStyleSheet(new_css)
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if new_css ~= self.css then
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self.css = new_css
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local tweaks_css = self.ui.styletweak:getCssText()
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self.ui.document:setStyleSheet(new_css, tweaks_css)
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self.ui:handleEvent(Event:new("UpdatePos"))
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end
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end
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function ReaderTypeset:setEmbededStyleSheetOnly()
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if self.css ~= nil then
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-- clear applied css
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self.ui.document:setStyleSheet("")
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self.ui.document:setEmbeddedStyleSheet(1)
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self.css = nil
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self.ui:handleEvent(Event:new("UpdatePos"))
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end
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end
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function ReaderTypeset:toggleEmbeddedStyleSheet(toggle)
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if not toggle then
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self.embedded_css = false
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self:setStyleSheet(self.ui.document.default_css)
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self.ui.document:setEmbeddedStyleSheet(0)
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else
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self.embedded_css = true
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--self:setStyleSheet(self.ui.document.default_css)
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self.ui.document:setEmbeddedStyleSheet(1)
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end
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self.ui:handleEvent(Event:new("UpdatePos"))
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end
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function ReaderTypeset:toggleEmbeddedFonts(toggle)
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if not toggle then
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self.embedded_fonts = false
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self.ui.document:setEmbeddedFonts(0)
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else
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self.embedded_fonts = true
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self.ui.document:setEmbeddedFonts(1)
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end
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self.ui:handleEvent(Event:new("UpdatePos"))
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end
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function ReaderTypeset:toggleFloatingPunctuation(toggle)
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-- for some reason the toggle value read from history files may stay boolean
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-- and there seems no more elegant way to convert boolean values to numbers
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if toggle == true then
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toggle = 1
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elseif toggle == false then
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toggle = 0
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end
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self.ui.document:setFloatingPunctuation(toggle)
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self.ui:handleEvent(Event:new("UpdatePos"))
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end
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function ReaderTypeset:toggleTxtPreFormatted(toggle)
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self.ui.document:setTxtPreFormatted(toggle)
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self.ui:handleEvent(Event:new("UpdatePos"))
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end
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function ReaderTypeset:setRenderDPI(dpi)
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self.render_dpi = dpi
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self.ui.document:setRenderDPI(dpi)
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self.ui:handleEvent(Event:new("UpdatePos"))
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end
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function ReaderTypeset:addToMainMenu(menu_items)
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-- insert table to main reader menu
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menu_items.set_render_style = {
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text = self.css_menu_title,
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sub_item_table = self:genStyleSheetMenu(),
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}
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menu_items.floating_punctuation = {
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text = _("Floating punctuation"),
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checked_func = function() return self.floating_punctuation == 1 end,
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callback = function()
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self.floating_punctuation = self.floating_punctuation == 1 and 0 or 1
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self:toggleFloatingPunctuation(self.floating_punctuation)
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end,
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hold_callback = function() self:makeDefaultFloatingPunctuation() end,
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}
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end
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function ReaderTypeset:makeDefaultFloatingPunctuation()
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local toggler = self.floating_punctuation == 1 and _("On") or _("Off")
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UIManager:show(ConfirmBox:new{
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text = T(
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_("Set default floating punctuation to %1?"),
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toggler
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),
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ok_callback = function()
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G_reader_settings:saveSetting("floating_punctuation", self.floating_punctuation)
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end,
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})
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end
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function ReaderTypeset:makeDefaultStyleSheet(css, text, touchmenu_instance)
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UIManager:show(ConfirmBox:new{
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text = T( _("Set default style to %1?"), text),
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ok_callback = function()
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G_reader_settings:saveSetting("copt_css", css)
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if touchmenu_instance then touchmenu_instance:updateItems() end
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end,
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})
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end
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function ReaderTypeset:onSetPageMargins(margins)
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local left = Screen:scaleBySize(margins[1])
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local top = Screen:scaleBySize(margins[2])
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local right = Screen:scaleBySize(margins[3])
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local bottom
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if self.view.footer.has_no_mode then
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bottom = Screen:scaleBySize(margins[4])
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else
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bottom = Screen:scaleBySize(margins[4] + DMINIBAR_HEIGHT)
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end
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self.ui.document:setPageMargins(left, top, right, bottom)
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self.ui:handleEvent(Event:new("UpdatePos"))
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return true
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end
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return ReaderTypeset
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