2
0
mirror of https://github.com/koreader/koreader synced 2024-11-02 15:40:16 +00:00
koreader/plugins/coverbrowser.koplugin/listmenu.lua
poire-z 9a6468ce5e
CoverBrowser: list mode: limit font size of components (#7324)
Should trigger when per-page <= 6/7, avoids authors and
titles to become too big.
2021-02-21 00:14:03 +01:00

1036 lines
43 KiB
Lua
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

local BD = require("ui/bidi")
local Blitbuffer = require("ffi/blitbuffer")
local CenterContainer = require("ui/widget/container/centercontainer")
local Device = require("device")
local DocSettings = require("docsettings")
local Font = require("ui/font")
local FrameContainer = require("ui/widget/container/framecontainer")
local Geom = require("ui/geometry")
local GestureRange = require("ui/gesturerange")
local HorizontalGroup = require("ui/widget/horizontalgroup")
local HorizontalSpan = require("ui/widget/horizontalspan")
local IconWidget = require("ui/widget/iconwidget")
local ImageWidget = require("ui/widget/imagewidget")
local InfoMessage = require("ui/widget/infomessage")
local InputContainer = require("ui/widget/container/inputcontainer")
local LeftContainer = require("ui/widget/container/leftcontainer")
local LineWidget = require("ui/widget/linewidget")
local Math = require("optmath")
local OverlapGroup = require("ui/widget/overlapgroup")
local RightContainer = require("ui/widget/container/rightcontainer")
local Size = require("ui/size")
local TextBoxWidget = require("ui/widget/textboxwidget")
local TextWidget = require("ui/widget/textwidget")
local UIManager = require("ui/uimanager")
local UnderlineContainer = require("ui/widget/container/underlinecontainer")
local VerticalGroup = require("ui/widget/verticalgroup")
local VerticalSpan = require("ui/widget/verticalspan")
local WidgetContainer = require("ui/widget/container/widgetcontainer")
local lfs = require("libs/libkoreader-lfs")
local logger = require("logger")
local util = require("util")
local _ = require("gettext")
local N_ = _.ngettext
local Screen = Device.screen
local T = require("ffi/util").template
local getMenuText = require("ui/widget/menu").getMenuText
local BookInfoManager = require("bookinfomanager")
-- Here is the specific UI implementation for "list" display modes
-- (see covermenu.lua for the generic code)
-- We will show a rotated dogear at bottom right corner of cover widget for
-- opened files (the dogear will make it look like a "used book")
-- The ImageWidget Will be created when we know the available height (and
-- recreated if height changes)
local corner_mark_size = -1
local corner_mark
local scale_by_size = Screen:scaleBySize(1000000) / 1000000
-- ItemShortCutIcon (for keyboard navigation) is private to menu.lua and can't be accessed,
-- so we need to redefine it
local ItemShortCutIcon = WidgetContainer:new{
dimen = Geom:new{ w = Screen:scaleBySize(22), h = Screen:scaleBySize(22) },
key = nil,
bordersize = Size.border.default,
radius = 0,
style = "square",
}
function ItemShortCutIcon:init()
if not self.key then
return
end
local radius = 0
local background = Blitbuffer.COLOR_WHITE
if self.style == "rounded_corner" then
radius = math.floor(self.width/2)
elseif self.style == "grey_square" then
background = Blitbuffer.COLOR_LIGHT_GRAY
end
local sc_face
if self.key:len() > 1 then
sc_face = Font:getFace("ffont", 14)
else
sc_face = Font:getFace("scfont", 22)
end
self[1] = FrameContainer:new{
padding = 0,
bordersize = self.bordersize,
radius = radius,
background = background,
dimen = self.dimen,
CenterContainer:new{
dimen = self.dimen,
TextWidget:new{
text = self.key,
face = sc_face,
},
},
}
end
-- Based on menu.lua's MenuItem
local ListMenuItem = InputContainer:new{
entry = {},
text = nil,
show_parent = nil,
detail = nil,
dimen = nil,
shortcut = nil,
shortcut_style = "square",
_underline_container = nil,
do_cover_image = false,
do_filename_only = false,
do_hint_opened = false,
been_opened = false,
init_done = false,
bookinfo_found = false,
cover_specs = nil,
has_description = false,
}
function ListMenuItem:init()
-- filepath may be provided as 'file' (history) or 'path' (filechooser)
-- store it as attribute so we can use it elsewhere
self.filepath = self.entry.file or self.entry.path
-- As done in MenuItem
-- Squared letter for keyboard navigation
if self.shortcut then
local shortcut_icon_dimen = Geom:new()
shortcut_icon_dimen.w = math.floor(self.dimen.h*2/5)
shortcut_icon_dimen.h = shortcut_icon_dimen.w
-- To keep a simpler widget structure, this shortcut icon will not
-- be part of it, but will be painted over the widget in our paintTo
self.shortcut_icon = ItemShortCutIcon:new{
dimen = shortcut_icon_dimen,
key = self.shortcut,
style = self.shortcut_style,
}
end
self.detail = self.text
-- we need this table per-instance, so we declare it here
if Device:isTouchDevice() then
self.ges_events = {
TapSelect = {
GestureRange:new{
ges = "tap",
range = self.dimen,
},
doc = "Select Menu Item",
},
HoldSelect = {
GestureRange:new{
ges = "hold",
range = self.dimen,
},
doc = "Hold Menu Item",
},
}
end
-- We now build the minimal widget container that won't change after udpate()
-- As done in MenuItem
-- for compatibility with keyboard navigation
-- (which does not seem to work well when multiple pages,
-- even with classic menu)
self.underline_h = 1 -- smaller than default (3) to not shift our vertical aligment
self._underline_container = UnderlineContainer:new{
vertical_align = "top",
padding = 0,
dimen = Geom:new{
w = self.width,
h = self.height
},
linesize = self.underline_h,
-- widget : will be filled in self:update()
}
self[1] = self._underline_container
-- Remaining part of initialization is done in update(), because we may
-- have to do it more than once if item not found in db
self:update()
self.init_done = true
end
function ListMenuItem:update()
-- We will be a disctinctive widget whether we are a directory,
-- a known file with image / without image, or a not yet known file
local widget
-- we'll add a VerticalSpan of same size as underline container for balance
local dimen = Geom:new{
w = self.width,
h = self.height - 2 * self.underline_h
}
local function _fontSize(nominal, max)
-- The nominal font size is based on 64px ListMenuItem height.
-- Keep ratio of font size to item height
local font_size = math.floor(nominal * dimen.h / 64 / scale_by_size)
-- But limit it to the provided max, to avoid huge font size when
-- only 4-6 items per page
if max and font_size >= max then
return max
end
return font_size
end
-- Will speed up a bit if we don't do all font sizes when
-- looking for one that make text fit
local fontsize_dec_step = math.ceil(_fontSize(100) / 100)
-- We'll draw a border around cover images, it may not be
-- needed with some covers, but it's nicer when cover is
-- a pure white background (like rendered text page)
local border_size = Size.border.thin
local max_img_w = dimen.h - 2*border_size -- width = height, squared
local max_img_h = dimen.h - 2*border_size
local cover_specs = {
sizetag = self.menu.cover_sizetag,
max_cover_w = max_img_w,
max_cover_h = max_img_h,
}
-- Make it available to our menu, for batch extraction
-- to know what size is needed for current view
if self.do_cover_image then
self.menu.cover_specs = cover_specs
else
self.menu.cover_specs = false
end
local file_mode = lfs.attributes(self.filepath, "mode")
if file_mode == "directory" then
self.is_directory = true
-- nb items on the right, directory name on the left
local wright = TextWidget:new{
text = self.mandatory_func and self.mandatory_func() or self.mandatory,
face = Font:getFace("infont", _fontSize(14, 18)),
}
local pad_width = Screen:scaleBySize(10) -- on the left, in between, and on the right
local wleft_width = dimen.w - wright:getWidth() - 3*pad_width
local wleft = TextBoxWidget:new{
text = BD.directory(self.text),
face = Font:getFace("cfont", _fontSize(20, 24)),
width = wleft_width,
alignment = "left",
bold = true,
height = dimen.h,
height_adjust = true,
height_overflow_show_ellipsis = true,
}
widget = OverlapGroup:new{
dimen = dimen,
LeftContainer:new{
dimen = dimen,
HorizontalGroup:new{
HorizontalSpan:new{ width = pad_width },
wleft,
}
},
RightContainer:new{
dimen = dimen,
HorizontalGroup:new{
wright,
HorizontalSpan:new{ width = pad_width },
},
},
}
else
if file_mode ~= "file" then
self.file_deleted = true
end
-- File
local bookinfo = BookInfoManager:getBookInfo(self.filepath, self.do_cover_image)
if bookinfo and self.do_cover_image and not bookinfo.ignore_cover then
if bookinfo.cover_fetched then
-- trigger recalculation of thumbnail if size changed
if bookinfo.has_cover and bookinfo.cover_sizetag ~= "M" and bookinfo.cover_sizetag ~= cover_specs.sizetag then
if bookinfo.cover_bb then
bookinfo.cover_bb:free()
end
bookinfo = nil
end
else
-- cover was not fetched previously, do as if not found
-- to force a new extraction
bookinfo = nil
end
-- If there's already a cover and it's a "M" size (MosaicMenuItem),
-- we'll use it and scale it down (it may slow a bit rendering,
-- but "M" size may be useful in another view (FileBrowser/History),
-- so we don't replace it).
end
if bookinfo then -- This book is known
self.bookinfo_found = true
local cover_bb_used = false
-- Build the left widget : image if wanted
local wleft = nil
local wleft_width = 0 -- if not do_cover_image
local wleft_height
if self.do_cover_image then
wleft_height = dimen.h
wleft_width = wleft_height -- make it squared
if bookinfo.has_cover and not bookinfo.ignore_cover then
cover_bb_used = true
-- Let ImageWidget do the scaling and give us the final size
local scale_factor = math.min(max_img_w / bookinfo.cover_w, max_img_h / bookinfo.cover_h)
local wimage = ImageWidget:new{
image = bookinfo.cover_bb,
scale_factor = scale_factor,
}
wimage:_render()
local image_size = wimage:getSize() -- get final widget size
wleft = CenterContainer:new{
dimen = Geom:new{ w = wleft_width, h = wleft_height },
FrameContainer:new{
width = image_size.w + 2*border_size,
height = image_size.h + 2*border_size,
margin = 0,
padding = 0,
bordersize = border_size,
dim = self.file_deleted,
wimage,
}
}
-- Let menu know it has some item with images
self.menu._has_cover_images = true
self._has_cover_image = true
else
local fake_cover_w = max_img_w * 0.6
local fake_cover_h = max_img_h
wleft = CenterContainer:new{
dimen = Geom:new{ w = wleft_width, h = wleft_height },
FrameContainer:new{
width = fake_cover_w + 2*border_size,
height = fake_cover_h + 2*border_size,
margin = 0,
padding = 0,
bordersize = border_size,
dim = self.file_deleted,
CenterContainer:new{
dimen = Geom:new{ w = fake_cover_w, h = fake_cover_h },
TextWidget:new{
text = "", -- U+26F6 Square four corners
face = Font:getFace("cfont", _fontSize(20)),
},
},
},
}
end
end
-- In case we got a blitbuffer and didnt use it (ignore_cover), free it
if bookinfo.cover_bb and not cover_bb_used then
bookinfo.cover_bb:free()
end
-- So we can draw an indicator if this book has a description
if bookinfo.description then
self.has_description = true
end
-- Gather some info, mostly for right widget:
-- file size (self.mandatory) (not available with History)
-- file type
-- pages read / nb of pages (not available for crengine doc not opened)
local directory, filename = util.splitFilePathName(self.filepath) -- luacheck: no unused
local filename_without_suffix, filetype = util.splitFileNameSuffix(filename)
local fileinfo_str
if self.mandatory_func then
-- Currently only provided by History, giving the last time read.
-- Just show this date, without the file extension
fileinfo_str = self.mandatory_func()
else
if self.mandatory then
fileinfo_str = BD.wrap(self.mandatory) .. " " .. BD.wrap(filetype)
else
fileinfo_str = filetype
end
if bookinfo._no_provider then
-- for unspported files: don't show extension on the right,
-- keep it in filename
filename_without_suffix = filename
fileinfo_str = self.mandatory
end
end
-- Current page / pages are available or more accurate in .sdr/metadata.lua
-- We use a cache (cleaned at end of this browsing session) to store
-- page, percent read and book status from sidecar files, to avoid
-- re-parsing them when re-rendering a visited page
if not self.menu.cover_info_cache then
self.menu.cover_info_cache = {}
end
local pages_str = ""
local percent_finished, status
local pages = bookinfo.pages -- default to those in bookinfo db
if DocSettings:hasSidecarFile(self.filepath) then
self.been_opened = true
if self.menu.cover_info_cache[self.filepath] then
pages, percent_finished, status = unpack(self.menu.cover_info_cache[self.filepath])
else
local docinfo = DocSettings:open(self.filepath)
-- We can get nb of page in the new 'doc_pages' setting, or from the old 'stats.page'
if docinfo.data.doc_pages then
pages = docinfo.data.doc_pages
elseif docinfo.data.stats and docinfo.data.stats.pages then
if docinfo.data.stats.pages ~= 0 then -- crengine with statistics disabled stores 0
pages = docinfo.data.stats.pages
end
end
if docinfo.data.summary and docinfo.data.summary.status then
status = docinfo.data.summary.status
end
percent_finished = docinfo.data.percent_finished
self.menu.cover_info_cache[self.filepath] = {pages, percent_finished, status}
end
end
if status == "complete" or status == "abandoned" then
-- Display these instead of the read %
if pages then
if status == "complete" then
pages_str = T(N_("Finished 1 page", "Finished %1 pages", pages), pages)
else
pages_str = T(N_("On hold 1 page", "On hold %1 pages", pages), pages)
end
else
pages_str = status == "complete" and _("Finished") or _("On hold")
end
elseif percent_finished then
if pages then
if BookInfoManager:getSetting("show_pages_read_as_progress") then
pages_str = T(_("Page %1 of %2"), Math.round(percent_finished*pages), pages)
else
pages_str = T(_("%1 % of %2 pages"), math.floor(100*percent_finished), pages)
end
if BookInfoManager:getSetting("show_pages_left_in_progress") then
pages_str = T(_("%1, %2 to read"), pages_str, Math.round(pages-percent_finished*pages), pages)
end
else
pages_str = string.format("%d %%", math.floor(100*percent_finished))
end
else
if pages then
pages_str = T(N_("1 page", "%1 pages", pages), pages)
end
end
-- Build the right widget
local fontsize_info = _fontSize(14, 18)
local wfileinfo = TextWidget:new{
text = fileinfo_str,
face = Font:getFace("cfont", fontsize_info),
fgcolor = self.file_deleted and Blitbuffer.COLOR_DARK_GRAY or nil,
}
local wpageinfo = TextWidget:new{
text = pages_str,
face = Font:getFace("cfont", fontsize_info),
fgcolor = self.file_deleted and Blitbuffer.COLOR_DARK_GRAY or nil,
}
local wright_width = math.max(wfileinfo:getSize().w, wpageinfo:getSize().w)
local wright_right_padding = Screen:scaleBySize(10)
-- We just built two string to be put one on top of the other, and we want
-- the combo centered. Given the nature of our strings (numbers,
-- uppercase MB/KB on top text, number and lowercase "page" on bottom text),
-- we get the annoying feeling it's not centered but shifted towards top.
-- Let's add a small VerticalSpan at top to give a better visual
-- feeling of centering.
local wright = CenterContainer:new{
dimen = Geom:new{ w = wright_width, h = dimen.h },
VerticalGroup:new{
align = "right",
VerticalSpan:new{ width = Screen:scaleBySize(2) },
wfileinfo,
wpageinfo,
}
}
-- Create or replace corner_mark if needed
local mark_size = math.floor(dimen.h / 6)
-- Just fits under the page info text, which in turn adapts to the ListMenuItem height.
if mark_size ~= corner_mark_size then
corner_mark_size = mark_size
if corner_mark then
corner_mark:free()
end
corner_mark = IconWidget:new{
icon = "dogear.opaque",
rotation_angle = BD.mirroredUILayout() and 180 or 270,
width = corner_mark_size,
height = corner_mark_size,
}
end
-- Build the middle main widget, in the space available
local wmain_left_padding = Screen:scaleBySize(10)
if self.do_cover_image then
-- we need less padding, as cover image, most often in
-- portrait mode, will provide some padding
wmain_left_padding = Screen:scaleBySize(5)
end
local wmain_right_padding = Screen:scaleBySize(10) -- used only for next calculation
local wmain_width = dimen.w - wleft_width - wmain_left_padding - wmain_right_padding - wright_width - wright_right_padding
local fontname_title = "cfont"
local fontname_authors = "cfont"
local fontsize_title = _fontSize(20, 24)
local fontsize_authors = _fontSize(18, 22)
local wtitle, wauthors
local title, authors
local series_mode = BookInfoManager:getSetting("series_mode")
-- whether to use or not title and authors
-- (We wrap each metadata text with BD.auto() to get for each of them
-- the text direction from the first strong character - which should
-- individually be the best thing, and additionnaly prevent shuffling
-- if concatenated.)
if self.do_filename_only or bookinfo.ignore_meta then
title = filename_without_suffix -- made out above
title = BD.auto(title)
authors = nil
else
title = bookinfo.title and bookinfo.title or filename_without_suffix
title = BD.auto(title)
authors = bookinfo.authors
-- If multiple authors (crengine separates them with \n), we
-- can display them on multiple lines, but limit to 2, and
-- append "et al." to the 2nd if there are more
if authors and authors:find("\n") then
authors = util.splitToArray(authors, "\n")
for i=1, #authors do
authors[i] = BD.auto(authors[i])
end
if #authors > 1 and bookinfo.series and series_mode == "series_in_separate_line" then
authors = { T(_("%1 et al."), authors[1]) }
elseif #authors > 2 then
authors = { authors[1], T(_("%1 et al."), authors[2]) }
end
authors = table.concat(authors, "\n")
-- as we'll fit 3 lines instead of 2, we can avoid some loops by starting from a lower font size
fontsize_title = _fontSize(17, 21)
fontsize_authors = _fontSize(15, 19)
elseif authors then
authors = BD.auto(authors)
end
end
-- add Series metadata if requested
if bookinfo.series then
if bookinfo.series_index then
bookinfo.series = BD.auto(bookinfo.series .. " #" .. bookinfo.series_index)
else
bookinfo.series = BD.auto(bookinfo.series)
end
if series_mode == "append_series_to_title" then
if title then
title = title .. " - " .. bookinfo.series
else
title = bookinfo.series
end
end
if not authors then
if series_mode == "append_series_to_authors" or series_mode == "series_in_separate_line" then
authors = bookinfo.series
end
else
if series_mode == "append_series_to_authors" then
authors = authors .. " - " .. bookinfo.series
elseif series_mode == "series_in_separate_line" then
authors = bookinfo.series .. "\n" .. authors
-- as we'll fit 3 lines instead of 2, we can avoid some loops by starting from a lower font size
fontsize_title = _fontSize(17, 21)
fontsize_authors = _fontSize(15, 19)
end
end
end
if bookinfo.unsupported then
-- Let's show this fact in place of the anyway empty authors slot
authors = T(_("(no book information: %1)"), bookinfo.unsupported)
end
-- Build title and authors texts with decreasing font size
-- till it fits in the space available
while true do
-- Free previously made widgets to avoid memory leaks
if wtitle then
wtitle:free()
end
if wauthors then
wauthors:free()
wauthors = nil
end
-- BookInfoManager:extractBookInfo() made sure
-- to save as nil (NULL) metadata that were an empty string
-- We provide the book language to get a chance to render title
-- and authors with alternate glyphs for that language.
wtitle = TextBoxWidget:new{
text = title,
lang = bookinfo.language,
face = Font:getFace(fontname_title, fontsize_title),
width = wmain_width,
alignment = "left",
bold = true,
fgcolor = self.file_deleted and Blitbuffer.COLOR_DARK_GRAY or nil,
}
local height = wtitle:getSize().h
if authors then
wauthors = TextBoxWidget:new{
text = authors,
lang = bookinfo.language,
face = Font:getFace(fontname_authors, fontsize_authors),
width = wmain_width,
alignment = "left",
fgcolor = self.file_deleted and Blitbuffer.COLOR_DARK_GRAY or nil,
}
height = height + wauthors:getSize().h
end
if height < dimen.h then -- we fit !
break
end
-- If we don't fit, decrease both font sizes
fontsize_title = fontsize_title - fontsize_dec_step
fontsize_authors = fontsize_authors - fontsize_dec_step
logger.dbg(title, "recalculate title/author with", fontsize_title)
-- Don't go too low, and get out of this loop
if fontsize_title < 3 or fontsize_authors < 3 then
break
end
end
local wmain = LeftContainer:new{
dimen = dimen,
VerticalGroup:new{
wtitle,
wauthors,
}
}
-- Build the final widget
widget = OverlapGroup:new{
dimen = dimen,
}
if self.do_cover_image then
-- add left widget
if wleft then
-- no need for left padding, as cover image, most often in
-- portrait mode, will have some padding - the rare landscape
-- mode cover image will be stuck to screen side thus
table.insert(widget, wleft)
end
-- pad main widget on the left with size of left widget
wmain = HorizontalGroup:new{
HorizontalSpan:new{ width = wleft_width },
HorizontalSpan:new{ width = wmain_left_padding },
wmain
}
else
-- pad main widget on the left
wmain = HorizontalGroup:new{
HorizontalSpan:new{ width = wmain_left_padding },
wmain
}
end
-- add padded main widget
table.insert(widget, LeftContainer:new{
dimen = dimen,
wmain
})
-- add right widget
table.insert(widget, RightContainer:new{
dimen = dimen,
HorizontalGroup:new{
wright,
HorizontalSpan:new{ width = wright_right_padding },
},
})
else -- bookinfo not found
if self.init_done then
-- Non-initial update(), but our widget is still not found:
-- it does not need to change, so avoid remaking the same widget
return
end
-- If we're in no image mode, don't save images in DB : people
-- who don't care about images will have a smaller DB, but
-- a new extraction will have to be made when one switch to image mode
if self.do_cover_image then
-- Not in db, we're going to fetch some cover
self.cover_specs = cover_specs
end
--
if self.do_hint_opened and DocSettings:hasSidecarFile(self.filepath) then
self.been_opened = true
end
-- No right widget by default, except in History
local wright
local wright_width = 0
local wright_right_padding = 0
if self.mandatory_func then
-- Currently only provided by History, giving the last time read.
-- If we have it, we need to build a more complex widget with
-- this date on the right
local fileinfo_str = self.mandatory_func()
local fontsize_info = _fontSize(14, 18)
local wfileinfo = TextWidget:new{
text = fileinfo_str,
face = Font:getFace("cfont", fontsize_info),
fgcolor = self.file_deleted and Blitbuffer.COLOR_DARK_GRAY or nil,
}
local wpageinfo = TextWidget:new{ -- Empty but needed for similar positionning
text = "",
face = Font:getFace("cfont", fontsize_info),
}
wright_width = wfileinfo:getSize().w
wright = CenterContainer:new{
dimen = Geom:new{ w = wright_width, h = dimen.h },
VerticalGroup:new{
align = "right",
VerticalSpan:new{ width = Screen:scaleBySize(2) },
wfileinfo,
wpageinfo,
}
}
wright_right_padding = Screen:scaleBySize(10)
end
-- A real simple widget, nothing fancy
local hint = "" -- display hint it's being loaded
if self.file_deleted then -- unless file was deleted (can happen with History)
hint = " " .. _("(deleted)")
end
local text = BD.filename(self.text)
local text_widget
local fontsize_no_bookinfo = _fontSize(18, 22)
repeat
if text_widget then
text_widget:free()
end
text_widget = TextBoxWidget:new{
text = text .. hint,
face = Font:getFace("cfont", fontsize_no_bookinfo),
width = dimen.w - 2 * Screen:scaleBySize(10) - wright_width - wright_right_padding,
alignment = "left",
fgcolor = self.file_deleted and Blitbuffer.COLOR_DARK_GRAY or nil,
}
-- reduce font size for next loop, in case text widget is too large to fit into ListMenuItem
fontsize_no_bookinfo = fontsize_no_bookinfo - fontsize_dec_step
until text_widget:getSize().h <= dimen.h
widget = LeftContainer:new{
dimen = dimen,
HorizontalGroup:new{
HorizontalSpan:new{ width = Screen:scaleBySize(10) },
text_widget
},
}
if wright then -- last read date, in History, even for deleted files
widget = OverlapGroup:new{
dimen = dimen,
widget,
RightContainer:new{
dimen = dimen,
HorizontalGroup:new{
wright,
HorizontalSpan:new{ width = wright_right_padding },
},
},
}
end
end
end
-- Fill container with our widget
if self._underline_container[1] then
-- There is a previous one, that we need to free()
local previous_widget = self._underline_container[1]
previous_widget:free()
end
-- Add some pad at top to balance with hidden underline line at bottom
self._underline_container[1] = VerticalGroup:new{
VerticalSpan:new{ width = self.underline_h },
widget
}
end
function ListMenuItem:paintTo(bb, x, y)
-- We used to get non-integer x or y that would cause some mess with image
-- inside FrameContainer were image would be drawn on top of the top border...
-- Fixed by having TextWidget:updateSize() math.ceil()'ing its length and height
-- But let us know if that happens again
if x ~= math.floor(x) or y ~= math.floor(y) then
logger.err("ListMenuItem:paintTo() got non-integer x/y :", x, y)
end
-- Original painting
InputContainer.paintTo(self, bb, x, y)
-- to which we paint over the shortcut icon
if self.shortcut_icon then
-- align it on bottom left corner of sub-widget
local target = self[1][1][2]
local ix
if BD.mirroredUILayout() then
ix = target.dimen.w - self.shortcut_icon.dimen.w
else
ix = 0
end
local iy = target.dimen.h - self.shortcut_icon.dimen.h
self.shortcut_icon:paintTo(bb, x+ix, y+iy)
end
-- to which we paint over a dogear if needed
if corner_mark and self.do_hint_opened and self.been_opened then
-- align it on bottom right corner of widget
local ix
if BD.mirroredUILayout() then
ix = 0
else
ix = self.width - corner_mark:getSize().w
end
local iy = self.height - corner_mark:getSize().h
corner_mark:paintTo(bb, x+ix, y+iy)
end
-- to which we paint a small indicator if this book has a description
if self.has_description and not BookInfoManager:getSetting("no_hint_description") then
local target = self[1][1][2]
local d_w = Screen:scaleBySize(3)
local d_h = math.ceil(target.dimen.h / 4)
if self.do_cover_image and target[1][1][1] then
-- it has an image, align it on image's framecontainer's right border
target = target[1][1]
local ix
if BD.mirroredUILayout() then
ix = target.dimen.x - d_w + 1
else
ix = target.dimen.x + target.dimen.w - 1
end
bb:paintBorder(ix, target.dimen.y, d_w, d_h, 1)
else
-- no image, align it to the left border
local ix
if BD.mirroredUILayout() then
ix = target.dimen.x + target.dimen.w - d_w
else
ix = x
end
bb:paintBorder(ix, y, d_w, d_h, 1)
end
end
end
-- As done in MenuItem
function ListMenuItem:onFocus()
self._underline_container.color = Blitbuffer.COLOR_BLACK
return true
end
function ListMenuItem:onUnfocus()
self._underline_container.color = Blitbuffer.COLOR_WHITE
return true
end
function ListMenuItem:onShowItemDetail()
UIManager:show(InfoMessage:new{ text = self.detail, })
return true
end
-- The transient color inversions done in MenuItem:onTapSelect
-- and MenuItem:onHoldSelect are ugly when done on an image,
-- so let's not do it
-- Also, no need for 2nd arg 'pos' (only used in readertoc.lua)
function ListMenuItem:onTapSelect(arg)
self.menu:onMenuSelect(self.entry)
return true
end
function ListMenuItem:onHoldSelect(arg, ges)
self.menu:onMenuHold(self.entry)
return true
end
-- Simple holder of methods that will replace those
-- in the real Menu class or instance
local ListMenu = {}
function ListMenu:_recalculateDimen()
self.dimen.w = self.width
self.dimen.h = self.height or Screen:getHeight()
-- Find out available height from other UI elements made in Menu
self.others_height = 0
if self.title_bar then -- Menu:init() has been done
if not self.is_borderless then
self.others_height = self.others_height + 2
end
if not self.no_title then
self.others_height = self.others_height + self.header_padding
self.others_height = self.others_height + self.title_bar.dimen.h
end
if self.page_info then
self.others_height = self.others_height + self.page_info:getSize().h
end
else
-- Menu:init() not yet done: other elements used to calculate self.others_heights
-- are not yet defined, so next calculations will be wrong, and we may get
-- a self.perpage higher than it should be: Menu:init() will set a wrong self.page.
-- We'll have to update it, if we want FileManager to get back to the original page.
self.page_recalc_needed_next_time = true
-- Also remember original position (and focused_path), which will be changed by
-- Menu/FileChooser to a probably wrong value
self.itemnum_orig = self.path_items[self.path]
self.focused_path_orig = self.focused_path
end
local available_height = self.dimen.h - self.others_height - Size.line.thin
-- (Note: we can't assign directly to self.perpage and expect it to
-- be 'nil' if it was not defined, as we'll find instead the value
-- defined in the Menu class (14) because of inheritance.)
local files_per_page = BookInfoManager:getSetting("files_per_page")
if files_per_page then
self.perpage = tonumber(files_per_page)
else
-- perpage used to be static and computed from a base of 64px per ListMenuItem,
-- which gave 10 items both in filemanager and history on kobo glo hd.
-- Now that we can change the nb of items, let's start with a similar default
-- and save it so it's known as the initial value by the menu selection widget.
self.perpage = math.floor(available_height / scale_by_size / 64)
BookInfoManager:saveSetting("files_per_page", tostring(self.perpage))
end
self.cover_sizetag = "s" .. self.perpage
if Screen:getWidth() > Screen:getHeight() then -- landscape mode
-- When in landscape mode (only possible with History), adjust
-- perpage so items get a chance to have about the same height
-- as when in portrait mode.
-- This computation is not strictly correct, as "others_height" would
-- have a different value in portrait mode. But let's go with that.
local portrait_available_height = Screen:getWidth() - self.others_height - Size.line.thin
local portrait_item_height = math.floor(portrait_available_height / self.perpage) - Size.line.thin
self.perpage = Math.round(available_height / portrait_item_height)
end
self.page_num = math.ceil(#self.item_table / self.perpage)
-- fix current page if out of range
if self.page_num > 0 and self.page > self.page_num then self.page = self.page_num end
-- menu item height based on number of items per page
-- add space for the separator
self.item_height = math.floor(available_height / self.perpage) - Size.line.thin
self.item_width = self.dimen.w
self.item_dimen = Geom:new{
w = self.item_width,
h = self.item_height
}
if self.page_recalc_needed then
-- self.page has probably been set to a wrong value, we recalculate
-- it here as done in Menu:init() or Menu:switchItemTable()
if #self.item_table > 0 then
self.page = math.ceil((self.itemnum_orig or 1) / self.perpage)
end
if self.focused_path_orig then
for num, item in ipairs(self.item_table) do
if item.path == self.focused_path_orig then
self.page = math.floor((num-1) / self.perpage) + 1
break
end
end
end
if self.page_num > 0 and self.page > self.page_num then self.page = self.page_num end
self.page_recalc_needed = nil
self.itemnum_orig = nil
self.focused_path_orig = nil
end
if self.page_recalc_needed_next_time then
self.page_recalc_needed = true
self.page_recalc_needed_next_time = nil
end
end
function ListMenu:_updateItemsBuildUI()
-- Build our list
table.insert(self.item_group, LineWidget:new{
dimen = Geom:new{ w = self.width, h = Size.line.thin },
background = Blitbuffer.COLOR_DARK_GRAY,
style = "solid",
})
local idx_offset = (self.page - 1) * self.perpage
for idx = 1, self.perpage do
local entry = self.item_table[idx_offset + idx]
if entry == nil then break end
-- Keyboard shortcuts, as done in Menu
local item_shortcut = nil
local shortcut_style = "square"
if self.is_enable_shortcut then
-- give different shortcut_style to keys in different
-- lines of keyboard
if idx >= 11 and idx <= 20 then
shortcut_style = "grey_square"
end
item_shortcut = self.item_shortcuts[idx]
end
local item_tmp = ListMenuItem:new{
height = self.item_height,
width = self.item_width,
entry = entry,
text = getMenuText(entry),
show_parent = self.show_parent,
mandatory = entry.mandatory,
mandatory_func = entry.mandatory_func,
dimen = self.item_dimen:new(),
shortcut = item_shortcut,
shortcut_style = shortcut_style,
menu = self,
do_cover_image = self._do_cover_images,
do_hint_opened = self._do_hint_opened,
do_filename_only = self._do_filename_only,
}
table.insert(self.item_group, item_tmp)
table.insert(self.item_group, LineWidget:new{
dimen = Geom:new{ w = self.width, h = Size.line.thin },
background = Blitbuffer.COLOR_DARK_GRAY,
style = "solid",
})
-- this is for focus manager
table.insert(self.layout, {item_tmp})
if not item_tmp.bookinfo_found and not item_tmp.is_directory and not item_tmp.file_deleted then
-- Register this item for update
table.insert(self.items_to_update, item_tmp)
end
end
end
return ListMenu