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mirror of https://github.com/koreader/koreader synced 2024-10-31 21:20:20 +00:00
koreader/frontend/apps/reader/modules/readerstyletweak.lua
poire-z 8f79c662cf Notification: closed by any event, but not consuming it
Make Notification have toast=true, and UIManager deal
specifically with such widget:
a "toast" widget gets closed by any event, and let
the event be handled by a lower widget.
This should allow us to not wait or tap to get rid
of a notification, and just go on with what we're
doing.
Also make them have a default timeout of 2s,
used with all existing ones.
2021-01-12 00:34:30 +01:00

794 lines
30 KiB
Lua

local BD = require("ui/bidi")
local Blitbuffer = require("ffi/blitbuffer")
local ButtonTable = require("ui/widget/buttontable")
local CenterContainer = require("ui/widget/container/centercontainer")
local CssTweaks = require("ui/data/css_tweaks")
local DataStorage = require("datastorage")
local Device = require("device")
local Event = require("ui/event")
local Font = require("ui/font")
local FrameContainer = require("ui/widget/container/framecontainer")
local Geom = require("ui/geometry")
local GestureRange = require("ui/gesturerange")
local InfoMessage = require("ui/widget/infomessage")
local InputContainer = require("ui/widget/container/inputcontainer")
local MovableContainer = require("ui/widget/container/movablecontainer")
local Notification = require("ui/widget/notification")
local Size = require("ui/size")
local TextBoxWidget = require("ui/widget/textboxwidget")
local UIManager = require("ui/uimanager")
local VerticalGroup = require("ui/widget/verticalgroup")
local VerticalSpan = require("ui/widget/verticalspan")
local lfs = require("libs/libkoreader-lfs")
local logger = require("logger")
local util = require("util")
local _ = require("gettext")
local Screen = Device.screen
local T = require("ffi/util").template
-- Simple widget for showing tweak info
local TweakInfoWidget = InputContainer:new{
tweak = nil,
is_global_default = nil,
toggle_global_default_callback = function() end,
modal = true,
width = math.floor(Screen:getWidth() * 0.75),
}
function TweakInfoWidget:init()
local tweak = self.tweak
if Device:isTouchDevice() then
self.ges_events.Tap = {
GestureRange:new{
ges = "tap",
range = Geom:new{
x = 0, y = 0,
w = Screen:getWidth(),
h = Screen:getHeight(),
}
}
}
end
if Device:hasKeys() then
self.key_events = {
Close = { {"Back"}, doc = "cancel" }
}
end
local content = VerticalGroup:new{
TextBoxWidget:new{
text = tweak.title,
bold = true,
face = Font:getFace("infofont"),
width = self.width,
},
VerticalSpan:new{
width = Size.padding.large,
},
}
if tweak.description then
table.insert(content,
TextBoxWidget:new{
text = tweak.description,
face = Font:getFace("smallinfofont"),
width = self.width,
}
)
table.insert(content, VerticalSpan:new{
width = Size.padding.large,
})
end
-- This css TextBoxWidget may make the widget overflow screen with
-- large css text. For now, we don't bother with the complicated
-- setup of a scrollable ScrollTextWidget.
local css = tweak.css
if not css and tweak.css_path then
css = ""
local f = io.open(tweak.css_path, "r")
if f then
css = f:read("*all")
f:close()
end
end
self.css_text = util.trim(css)
self.css_frame = FrameContainer:new{
bordersize = Size.border.thin,
padding = Size.padding.large,
TextBoxWidget:new{
text = self.css_text,
face = Font:getFace("infont", 16),
width = self.width - 2*Size.padding.large,
para_direction_rtl = false, -- LTR
}
}
table.insert(content, self.css_frame)
if self.is_global_default then
table.insert(content, VerticalSpan:new{
width = Size.padding.large,
})
table.insert(content,
TextBoxWidget:new{
text = _("This tweak is applied on all books."),
face = Font:getFace("smallinfofont"),
width = self.width,
}
)
end
content = FrameContainer:new{
bordersize = 0,
padding = Size.padding.large,
padding_top = Size.padding.default,
content,
}
local buttons = {
{
text = _("Close"),
callback = function()
UIManager:close(self)
end,
},
{
text = self.is_global_default and _("Don't use on all books") or _("Use on all books"),
callback = function()
self.toggle_global_default_callback()
UIManager:close(self)
end,
},
}
local button_table = ButtonTable:new{
width = content:getSize().w,
button_font_face = "cfont",
button_font_size = 20,
buttons = { buttons },
zero_sep = true,
show_parent = self,
}
self.movable = MovableContainer:new{
FrameContainer:new{
background = Blitbuffer.COLOR_WHITE,
radius = Size.radius.window,
margin = Size.margin.default,
padding = Size.padding.default,
padding_bottom = 0, -- no padding below buttontable
VerticalGroup:new{
align = "left",
content,
button_table,
}
}
}
self[1] = CenterContainer:new{
dimen = Screen:getSize(),
self.movable
}
end
function TweakInfoWidget:onShow()
UIManager:setDirty(self, function()
return "ui", self.movable.dimen
end)
end
function TweakInfoWidget:onCloseWidget()
UIManager:setDirty(nil, function()
return "ui", self.movable.dimen
end)
end
function TweakInfoWidget:onClose()
UIManager:close(self)
return true
end
function TweakInfoWidget:onTap(arg, ges)
if ges.pos:intersectWith(self.css_frame.dimen) and Device:hasClipboard() then
-- Tap inside CSS text copies it into clipboard (so it
-- can be pasted into the book-specific tweak editor)
-- (Add \n on both sides for easier pasting)
Device.input.setClipboardText("\n"..self.css_text.."\n")
UIManager:show(Notification:new{
text = _("CSS text copied to clipboard"),
})
return true
elseif ges.pos:notIntersectWith(self.movable.dimen) then
-- Tap outside closes widget
self:onClose()
return true
end
return false
end
function TweakInfoWidget:onSelect()
if self.selected.x == 1 then
self:toggle_global_default_callback()
end
UIManager:close(self)
return true
end
-- Ordering function for tweaks when appened to css_test.
-- The order needs to be consistent for crengine's stylesheet change
-- detection code to not invalidate cache across loadings.
local function tweakOrdering(l, r)
if l.priority ~= r.priority then
-- lower priority first in the CSS text
return l.priority < r.priority
end
-- same priority: order by ids
return l.id < r.id
end
-- Reader component for managing tweaks. The aggregated css_text
-- is actually requested from us and applied by ReaderTypeset
local ReaderStyleTweak = InputContainer:new{
tweaks_by_id = nil,
tweaks_table = nil, -- sub-menu items
nb_enabled_tweaks = 0, -- for use by main menu item
css_text = nil, -- aggregated css text from tweaks individual css snippets
enabled = true, -- allows for toggling between selected tweaks / none
}
function ReaderStyleTweak:isTweakEnabled(tweak_id)
local g_enabled = false
local enabled = false
if self.global_tweaks[tweak_id] then
enabled = true
g_enabled = true
end
if self.doc_tweaks[tweak_id] == true then
enabled = true
elseif self.doc_tweaks[tweak_id] == false then
enabled = false
end
return enabled, g_enabled
end
function ReaderStyleTweak:nbTweaksEnabled(sub_item_table)
local nb_enabled = 0
local nb_found = 0
for _, item in ipairs(sub_item_table) do
if item.sub_item_table then
local sub_nb_enabled, sub_nb_found = self:nbTweaksEnabled(item.sub_item_table)
nb_enabled = nb_enabled + sub_nb_enabled
nb_found = nb_found + sub_nb_found
elseif item.tweak_id then
if self:isTweakEnabled(item.tweak_id) then
nb_enabled = nb_enabled + 1
end
nb_found = nb_found + 1
end
end
return nb_enabled, nb_found
end
-- Called by ReaderTypeset, returns the already built string
function ReaderStyleTweak:getCssText()
return self.css_text
end
-- Build css_text, and request ReaderTypeset to apply it if wanted
function ReaderStyleTweak:updateCssText(apply)
if self.enabled then
local tweaks = {}
for id, enabled in pairs(self.global_tweaks) do
-- there are only enabled tweaks in global_tweaks, but we don't
-- add them here if they appear in doc_tweaks (if enabled in
-- doc_tweaks, they'll be added below; if disabled, they should
-- not be added)
if self.doc_tweaks[id] == nil then
table.insert(tweaks, self.tweaks_by_id[id])
end
end
for id, enabled in pairs(self.doc_tweaks) do
-- there are enabled (true) and disabled (false) tweaks in doc_tweaks
if self.doc_tweaks[id] == true then
table.insert(tweaks, self.tweaks_by_id[id])
end
end
table.sort(tweaks, tweakOrdering)
self.nb_enabled_tweaks = 0
local css_snippets = {}
for _, tweak in ipairs(tweaks) do
self.nb_enabled_tweaks = self.nb_enabled_tweaks + 1
local css = tweak.css
if not css and tweak.css_path then
css = ""
local f = io.open(tweak.css_path, "r")
if f then
css = f:read("*all")
f:close()
end
-- We could store what's been read into tweak.css to avoid
-- re-reading it, but this will allow a user to experiment
-- wihout having to restart KOReader
end
css = util.trim(css)
table.insert(css_snippets, css)
end
if self.book_style_tweak and self.book_style_tweak_enabled then
self.nb_enabled_tweaks = self.nb_enabled_tweaks + 1
table.insert(css_snippets, self.book_style_tweak)
end
self.css_text = table.concat(css_snippets, "\n")
logger.dbg("made tweak css:\n".. self.css_text .. "[END]")
else
self.css_text = nil
logger.dbg("made no tweak css (Style tweaks disabled)")
end
if apply then
self.ui:handleEvent(Event:new("ApplyStyleSheet"))
end
end
function ReaderStyleTweak:onReadSettings(config)
self.enabled = not (config:readSetting("style_tweaks_enabled") == false)
self.doc_tweaks = config:readSetting("style_tweaks") or {}
-- Default globally enabled style tweaks (for new installations)
-- are defined in css_tweaks.lua
self.global_tweaks = G_reader_settings:readSetting("style_tweaks") or CssTweaks.DEFAULT_GLOBAL_STYLE_TWEAKS
self.book_style_tweak = config:readSetting("book_style_tweak") -- string or nil
self.book_style_tweak_enabled = config:readSetting("book_style_tweak_enabled")
self.book_style_tweak_last_edit_pos = config:readSetting("book_style_tweak_last_edit_pos")
self:updateCssText()
end
function ReaderStyleTweak:onSaveSettings()
if self.enabled then
self.ui.doc_settings:delSetting("style_tweaks_enabled")
else
self.ui.doc_settings:saveSetting("style_tweaks_enabled", false)
end
self.ui.doc_settings:saveSetting("style_tweaks", util.tableSize(self.doc_tweaks) > 0 and self.doc_tweaks or nil)
G_reader_settings:saveSetting("style_tweaks", self.global_tweaks)
self.ui.doc_settings:saveSetting("book_style_tweak", self.book_style_tweak)
self.ui.doc_settings:saveSetting("book_style_tweak_enabled", self.book_style_tweak_enabled)
self.ui.doc_settings:saveSetting("book_style_tweak_last_edit_pos", self.book_style_tweak_last_edit_pos)
end
function ReaderStyleTweak:init()
self.tweaks_by_id = {}
self.tweaks_table = {}
-- Add first item of sub-menu, that allows toggling between
-- enabled tweaks / none (without the need to disable each of
-- them)
table.insert(self.tweaks_table, {
text = _("Enable style tweaks (hold for info)"),
checked_func = function() return self.enabled end,
callback = function()
self.enabled = not self.enabled
self:updateCssText(true) -- apply it immediately
end,
hold_callback = function()
UIManager:show(InfoMessage:new{
text = _([[
Style tweaks allow changing small parts of book styles (including the publisher/embedded styles) to make visual adjustments or disable unwanted publisher layout choices.
Some tweaks may be useful with some books, while resulting in undesirable effects with others.
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.]])
})
end,
separator = true,
})
-- Single function for use as enabled_func
local is_enabled = function() return self.enabled end
-- Generic function to recursively build a sub_item_table (as expected
-- by TouchMenu) from a table of tweak definitions (like CssTweaks from
-- css_tweaks.lua, or like the one we build from user styletweaks
-- directory files and sub-directories)
local addTweakMenuItem
addTweakMenuItem = function(menu, item, max_per_page)
if type(item) == "table" and #item > 0 then -- sub-menu
local sub_item_table = {}
sub_item_table.max_per_page = max_per_page
for _, it in ipairs(item) do
addTweakMenuItem(sub_item_table, it, max_per_page) -- recurse
end
table.insert(menu, {
text_func = function()
local text = item.title or "### undefined submenu title ###"
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,
separator = item.separator,
})
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,
hold_callback = function(touchmenu_instance)
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
touchmenu_instance:updateItems()
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,
})
elseif item.info_text then -- informative menu item
table.insert(menu, {
text = item.title or "### undefined menu title ###",
-- No check box.
-- Show the info text when either tap or hold
keep_menu_open = true,
callback = function()
UIManager:show(InfoMessage:new{
text = item.info_text,
})
end,
hold_callback = function()
UIManager:show(InfoMessage:new{
text = item.info_text,
})
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"), BD.filepath(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, 6)
-- limit to 6 user tweaks per page
-- Book-specific editable tweak
self.tweaks_table[#self.tweaks_table].separator = true
local book_tweak_item = {
text_func = function()
if self.book_style_tweak then
return _("Book-specific tweak (hold to edit)")
else
return _("Book-specific tweak")
end
end,
enabled_func = function() return self.enabled end,
checked_func = function() return self.book_style_tweak_enabled end,
callback = function(touchmenu_instance)
if self.book_style_tweak then
-- There is a tweak: toggle it on tap, like other tweaks
self.book_style_tweak_enabled = not self.book_style_tweak_enabled
self:updateCssText(true) -- apply it immediately
else
-- No tweak defined: launch editor
self:editBookTweak(touchmenu_instance)
end
end,
hold_callback = function(touchmenu_instance)
self:editBookTweak(touchmenu_instance)
end,
}
table.insert(self.tweaks_table, book_tweak_item)
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
local BOOK_TWEAK_SAMPLE_CSS = [[
p.someTitleClassName { text-indent: 0; }
DIV.advertisement { display: none !important; }
.footnoteContainerClassName {
font-size: 0.8rem !important;
text-align: justify !important;
margin: 0 !important;
-cr-hint: footnote-inpage;
}
]]
local BOOK_TWEAK_INPUT_HINT = T([[
/* %1 */
%2]], _("You can add CSS snippets which will be applied only to this book."), BOOK_TWEAK_SAMPLE_CSS)
function ReaderStyleTweak:editBookTweak(touchmenu_instance)
local InputDialog = require("ui/widget/inputdialog")
local editor -- our InputDialog instance
local tweak_button_id = "editBookTweakButton"
-- We add a button on the left, which can have 3 states/labels:
local BUTTON_USE_SAMPLE = _("Use sample")
local BUTTON_PRETTIFY = _("Prettify")
local BUTTON_CONDENSE = _("Condense")
-- Initial button state differs whether we already have some CSS content
local tweak_button_state = self.book_style_tweak and BUTTON_PRETTIFY or BUTTON_USE_SAMPLE
local toggle_tweak_button = function(state)
if state then -- use provided state
tweak_button_state = state
else -- natural toggling
if tweak_button_state == BUTTON_USE_SAMPLE then
tweak_button_state = BUTTON_PRETTIFY
elseif tweak_button_state == BUTTON_PRETTIFY then
tweak_button_state = BUTTON_CONDENSE
elseif tweak_button_state == BUTTON_CONDENSE then
tweak_button_state = BUTTON_PRETTIFY
end
end
local tweak_button = editor.button_table:getButtonById(tweak_button_id)
tweak_button:init()
editor:refreshButtons()
end
-- The Save and Close buttons default behaviour, how they trigger
-- the callbacks and how they show or not a notification, is not
-- the most convenient here. We try to tweak that a bit.
local SAVE_BUTTON_LABEL
if self.book_style_tweak_enabled or not self.book_style_tweak then
SAVE_BUTTON_LABEL = _("Apply")
else
SAVE_BUTTON_LABEL = _("Save")
end
-- This message might be shown by multiple notifications at the
-- same time: having it similar will make that unnoticed.
local NOT_MODIFIED_MSG = _("Book tweak not modified.")
editor = InputDialog:new{
title = _("Edit book-specific style tweak"),
input = self.book_style_tweak or "",
input_hint = BOOK_TWEAK_INPUT_HINT,
input_face = Font:getFace("infont", 16), -- same as in TweakInfoWidget
para_direction_rtl = false,
lang = "en",
fullscreen = true,
condensed = true,
allow_newline = true,
cursor_at_end = false,
add_nav_bar = true,
scroll_by_pan = true,
buttons = {{
-- First button on first row (row will be completed with Reset|Save|Close)
{
id = tweak_button_id,
text_func = function()
return tweak_button_state -- usable as a label
end,
callback = function()
if tweak_button_state == BUTTON_USE_SAMPLE then
editor:setInputText(BOOK_TWEAK_SAMPLE_CSS, true)
-- will have edited_callback() called, which will do toggle_tweak_button()
else
local css_text = editor:getInputText()
css_text = util.prettifyCSS(css_text, tweak_button_state == BUTTON_CONDENSE)
editor:setInputText(css_text, true)
toggle_tweak_button()
end
end,
},
}},
edited_callback = function()
if not editor then
-- We might be called while the InputDialog is being
-- initialized (so not yet assigned to 'editor')
return
end
if #editor:getInputText() == 0 then
-- No content: show "Use sample"
if tweak_button_state ~= BUTTON_USE_SAMPLE then
toggle_tweak_button(BUTTON_USE_SAMPLE)
end
else
-- Some content: get rid of "Use sample" to not risk
-- overriding content
if tweak_button_state == BUTTON_USE_SAMPLE then
toggle_tweak_button()
end
end
end,
-- Set/save view and cursor position callback
view_pos_callback = function(top_line_num, charpos)
-- This same callback is called with no argument to get initial position,
-- and with arguments to give back final position when closed.
if top_line_num and charpos then
self.book_style_tweak_last_edit_pos = {top_line_num, charpos}
else
local prev_pos = self.book_style_tweak_last_edit_pos
if type(prev_pos) == "table" and prev_pos[1] and prev_pos[2] then
return prev_pos[1], prev_pos[2]
end
return nil, nil -- no previous position known
end
end,
reset_button_text = _("Restore"),
reset_callback = function(content) -- Will add a Reset button
return self.book_style_tweak or "", _("Book tweak restored")
end,
save_button_text = SAVE_BUTTON_LABEL,
close_save_button_text = SAVE_BUTTON_LABEL,
save_callback = function(content, closing) -- Will add Save/Close buttons
if content and content == "" then
content = nil -- we store nil when empty
end
local was_empty = self.book_style_tweak == nil
local is_empty = content == nil
local tweak_updated = content ~= self.book_style_tweak
local should_apply = false
local msg -- returned and shown as a notification by InputDialog
if was_empty and not is_empty then
-- Tweak was empty, and so just created: enable book tweak
-- so it's immediately applied, and checked in the menu
self.book_style_tweak_enabled = true
should_apply = true
msg = _("Book tweak created, applying…")
elseif is_empty then
if not was_empty and self.book_style_tweak_enabled then
-- Tweak was enabled, but has been emptied: make it
-- disabled in the menu, but apply CSS without it
should_apply = true
msg = _("Book tweak removed, rendering…")
else
msg = _("Book tweak emptied and removed.")
end
self.book_style_tweak_enabled = false
elseif tweak_updated then
if self.book_style_tweak_enabled then
should_apply = true
msg = _("Book tweak updated, applying…")
else
msg = _("Book tweak saved (not enabled).")
end
else
msg = NOT_MODIFIED_MSG
end
self.book_style_tweak = content
-- We always close the editor when this callback is called.
-- If closing=true, InputDialog will call close_callback().
-- If not, let's do it ourselves.
if not closing then
UIManager:close(editor)
end
if should_apply then
-- Let menu be closed and previous page be refreshed,
-- so one can see how the text is changed by the tweak.
touchmenu_instance:closeMenu()
UIManager:scheduleIn(0.2, function()
self:updateCssText(true) -- have it applied
end)
else
touchmenu_instance:updateItems()
end
editor.save_callback_called = true
return true, msg
end,
close_callback = function()
-- save_callback() will always have shown some notification,
-- so don't add another one
if not editor.save_callback_called then
UIManager:show(Notification:new{
text = NOT_MODIFIED_MSG,
})
-- This has to be the same message above and below: when
-- discarding, we can't prevent these 2 notifications from
-- being shown: having them identical will hide that.
end
end,
close_discarded_notif_text = NOT_MODIFIED_MSG;
}
UIManager:show(editor)
editor:onShowKeyboard(true)
-- ignore first hold release, as we may be invoked from hold
end
return ReaderStyleTweak