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 filemanagerutil = require("apps/filemanager/filemanagerutil") 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) * (1/1000000) -- ItemShortCutIcon (for keyboard navigation) is private to menu.lua and can't be accessed, -- so we need to redefine it local ItemShortCutIcon = WidgetContainer:extend{ 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:extend{ entry = nil, -- hash, mandatory 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 self.ges_events = { TapSelect = { GestureRange:new{ ges = "tap", range = self.dimen, }, }, HoldSelect = { GestureRange:new{ ges = "hold", range = self.dimen, }, }, } -- 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 * (1/64) / 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) * (1/100)) -- 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 or "", 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 local is_file_selected = self.menu.filemanager and self.menu.filemanager.selected_files and self.menu.filemanager.selected_files[self.filepath] if file_mode ~= "file" or is_file_selected then self.file_deleted = true -- dim file 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) -- 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 pages = bookinfo.pages -- default to those in bookinfo db local percent_finished, status, has_highlight if DocSettings:hasSidecarFile(self.filepath) then self.been_opened = true self.menu:updateCache(self.filepath, nil, true, pages) -- create new cache entry if absent pages, percent_finished, status, has_highlight = unpack(self.menu.cover_info_cache[self.filepath]) end -- right widget, first line local directory, filename = util.splitFilePathName(self.filepath) -- luacheck: no unused local filename_without_suffix, filetype = filemanagerutil.splitFileNameType(filename) local fileinfo_str 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 else local mark = has_highlight and "\u{2592} " or "" -- "medium shade" fileinfo_str = mark .. BD.wrap(filetype) .. " " .. BD.wrap(self.mandatory) end -- right widget, second line 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 %%", 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 * (1/6)) -- 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(true) end if wauthors then wauthors:free(true) 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 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 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(true) 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() -- 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.inner_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.inner_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 local line_widget = LineWidget:new{ dimen = Geom:new{ w = self.width or self.screen_w, h = Size.line.thin }, background = Blitbuffer.COLOR_DARK_GRAY, } table.insert(self.item_group, line_widget) 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, 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, line_widget) -- 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