local BD = require("ui/bidi") local Blitbuffer = require("ffi/blitbuffer") local BottomContainer = require("ui/widget/container/bottomcontainer") 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 ProgressWidget = require("ui/widget/progresswidget") local OverlapGroup = require("ui/widget/overlapgroup") 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 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 "mosaic" 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 progress_widget -- 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 -- We may find a better algorithm, or just a set of -- nice looking combinations of 3 sizes to iterate thru -- The rendering of the TextBoxWidget we're doing below -- with decreasing font sizes till it fits is quite expensive. local FakeCover = FrameContainer:extend{ width = nil, height = nil, margin = 0, padding = 0, bordersize = Size.border.thin, dim = nil, -- Provided filename, title and authors should not be BD wrapped filename = nil, file_deleted = nil, title = nil, authors = nil, -- The *_add should be provided BD wrapped if needed filename_add = nil, title_add = nil, authors_add = nil, book_lang = nil, -- these font sizes will be scaleBySize'd by Font:getFace() authors_font_max = 20, authors_font_min = 6, title_font_max = 24, title_font_min = 10, filename_font_max = 10, filename_font_min = 8, top_pad = Size.padding.default, bottom_pad = Size.padding.default, sizedec_step = Screen:scaleBySize(2), -- speeds up a bit if we don't do all font sizes initial_sizedec = 0, } function FakeCover:init() -- BookInfoManager:extractBookInfo() made sure -- to save as nil (NULL) metadata that were an empty string local authors = self.authors local title = self.title local filename = self.filename -- (some engines may have already given filename (without extension) as title) local bd_wrap_title_as_filename = false if not title then -- use filename as title (big and centered) title = filename filename = nil if not self.title_add and self.filename_add then -- filename_add ("…" or "(deleted)") always comes without any title_add self.title_add = self.filename_add self.filename_add = nil end bd_wrap_title_as_filename = true end if filename then filename = BD.filename(filename) end -- If no authors, and title is filename without extension, it was -- probably made by an engine, and we can consider it a filename, and -- act according to common usage in naming files. if not authors and title and self.filename and self.filename:sub(1,title:len()) == title then bd_wrap_title_as_filename = true -- Replace a hyphen surrounded by spaces (which most probably was -- used to separate Authors/Title/Serie/Year/Categorie in the -- filename with a \n title = title:gsub(" %- ", "\n") -- Same with | title = title:gsub("|", "\n") -- Also replace underscores with spaces title = title:gsub("_", " ") -- Some filenames may also use dots as separators, but dots -- can also have some meaning, so we can't just remove them. -- But at least, make dots breakable (they wouldn't be if not -- followed by a space), by adding to them a zero-width-space, -- so the dots stay on the right of their preceeding word. title = title:gsub("%.", ".\xE2\x80\x8B") -- Except for a last dot near end of title that might preceed -- a file extension: we'd rather want the dot and its suffix -- together on a last line: so, move the zero-width-space -- before it. title = title:gsub("%.\xE2\x80\x8B(%w%w?%w?%w?%w?)$", "\xE2\x80\x8B.%1") -- These substitutions will hopefully have no impact with the following BD wrapping end if title then title = bd_wrap_title_as_filename and BD.filename(title) or BD.auto(title) end -- If multiple authors (crengine separates them with \n), we -- can display them on multiple lines, but limit to 3, and -- append "et al." on a 4th line 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 > 3 then authors = { authors[1], authors[2], T(_("%1 et al."), authors[3]) } end authors = table.concat(authors, "\n") elseif authors then authors = BD.auto(authors) end -- Add any _add, which must be already BD wrapped if needed if self.filename_add then filename = (filename and filename or "") .. self.filename_add end if self.title_add then title = (title and title or "") .. self.title_add end if self.authors_add then authors = (authors and authors or "") .. self.authors_add end -- We build the VerticalGroup widget with decreasing font sizes till -- the widget fits into available height local width = self.width - 2*(self.bordersize + self.margin + self.padding) local height = self.height - 2*(self.bordersize + self.margin + self.padding) local text_width = 7/8 * width -- make width of text smaller to have some padding local inter_pad local sizedec = self.initial_sizedec local authors_wg, title_wg, filename_wg local loop2 = false -- we may do a second pass with modifier title and authors strings while true do -- Free previously made widgets to avoid memory leaks if authors_wg then authors_wg:free(true) authors_wg = nil end if title_wg then title_wg:free(true) title_wg = nil end if filename_wg then filename_wg:free(true) filename_wg = nil end -- Build new widgets local texts_height = 0 if authors then authors_wg = TextBoxWidget:new{ text = authors, lang = self.book_lang, face = Font:getFace("cfont", math.max(self.authors_font_max - sizedec, self.authors_font_min)), width = text_width, alignment = "center", } texts_height = texts_height + authors_wg:getSize().h end if title then title_wg = TextBoxWidget:new{ text = title, lang = self.book_lang, face = Font:getFace("cfont", math.max(self.title_font_max - sizedec, self.title_font_min)), width = text_width, alignment = "center", } texts_height = texts_height + title_wg:getSize().h end if filename then filename_wg = TextBoxWidget:new{ text = filename, lang = self.book_lang, -- might as well use it for filename face = Font:getFace("cfont", math.max(self.filename_font_max - sizedec, self.filename_font_min)), width = text_width, alignment = "center", } texts_height = texts_height + filename_wg:getSize().h end local free_height = height - texts_height if authors then free_height = free_height - self.top_pad end if filename then free_height = free_height - self.bottom_pad end inter_pad = math.floor(free_height / 2) local textboxes_ok = true if (authors_wg and authors_wg.has_split_inside_word) or (title_wg and title_wg.has_split_inside_word) then -- We may get a nicer cover at next lower font size textboxes_ok = false end if textboxes_ok and free_height > 0.2 * height then -- enough free space to not look constrained break end -- (We may store the first widgets matching free space requirements but -- not textboxes_ok, so that if we never ever get textboxes_ok candidate, -- we can use them instead of the super-small strings-modified we'll have -- at the end that are worse than the firsts) sizedec = sizedec + self.sizedec_step if sizedec > 20 then -- break out of loop when too small -- but try a 2nd loop with some cleanup to strings (for filenames -- with no space but hyphen or underscore instead) if not loop2 then loop2 = true sizedec = self.initial_sizedec -- restart from initial big size if G_reader_settings:nilOrTrue("use_xtext") then -- With Unicode/libunibreak, a break after a hyphen is allowed, -- but not around underscores and dots without any space around. -- So, append a zero-width-space to allow text wrap after them. if title then title = title:gsub("_", "_\xE2\x80\x8B"):gsub("%.", ".\xE2\x80\x8B") end if authors then authors = authors:gsub("_", "_\xE2\x80\x8B"):gsub("%.", ".\xE2\x80\x8B") end else -- Replace underscores and hyphens with spaces, to allow text wrap there. if title then title = title:gsub("-", " "):gsub("_", " ") end if authors then authors = authors:gsub("-", " "):gsub("_", " ") end end else -- 2nd loop done, no luck, give up break end end end local vgroup = VerticalGroup:new{} if authors then table.insert(vgroup, VerticalSpan:new{ width = self.top_pad }) table.insert(vgroup, authors_wg) end table.insert(vgroup, VerticalSpan:new{ width = inter_pad }) if title then table.insert(vgroup, title_wg) end table.insert(vgroup, VerticalSpan:new{ width = inter_pad }) if filename then table.insert(vgroup, filename_wg) table.insert(vgroup, VerticalSpan:new{ width = self.bottom_pad }) end if self.file_deleted then self.dim = true self.color = Blitbuffer.COLOR_DARK_GRAY end -- As we are a FrameContainer, a border will be painted around self[1] self[1] = CenterContainer:new{ dimen = Geom:new{ w = width, h = height, }, vgroup, } end -- Based on menu.lua's MenuItem local MosaicMenuItem = InputContainer:extend{ entry = nil, -- table, mandatory text = nil, show_parent = nil, detail = nil, dimen = nil, shortcut = nil, shortcut_style = "square", _underline_container = nil, do_cover_image = false, do_hint_opened = false, been_opened = false, init_done = false, bookinfo_found = false, cover_specs = nil, has_description = false, } function MosaicMenuItem: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*1/5) 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 self.percent_finished = nil -- 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), don't waste space 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 MosaicMenuItem: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 local dimen = Geom:new{ w = self.width, h = self.height - self.underline_h } -- 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.w - 2*border_size local max_img_h = dimen.h - 2*border_size local cover_specs = { sizetag = "M", 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 -- Directory : rounded corners local margin = Screen:scaleBySize(5) -- make directories less wide local padding = Screen:scaleBySize(5) border_size = Size.border.thick -- make directories' borders larger local dimen_in = Geom:new{ w = dimen.w - (margin + padding + border_size)*2, h = dimen.h - (margin + padding + border_size)*2 } local text = self.text if text:match('/$') then -- remove /, more readable text = text:sub(1, -2) end text = BD.directory(text) local nbitems = TextBoxWidget:new{ text = self.mandatory, face = Font:getFace("infont", 15), width = dimen_in.w, alignment = "center", } -- The directory name will be centered, with nbitems at bottom. -- We could use 2*nbitems:getSize().h to keep that centering, -- but using 3* will avoid getting the directory name stuck -- to nbitems. local available_height = dimen_in.h - 3 * nbitems:getSize().h local dir_font_size = 20 local directory while true do if directory then directory:free(true) end directory = TextBoxWidget:new{ text = text, face = Font:getFace("cfont", dir_font_size), width = dimen_in.w, alignment = "center", bold = true, } if directory:getSize().h <= available_height then break end dir_font_size = dir_font_size - 1 if dir_font_size < 10 then -- don't go too low directory:free() directory.height = available_height directory.height_adjust = true directory.height_overflow_show_ellipsis = true directory:init() break end end widget = FrameContainer:new{ width = dimen.w, height = dimen.h, margin = margin, padding = padding, bordersize = border_size, radius = Screen:scaleBySize(10), OverlapGroup:new{ dimen = dimen_in, CenterContainer:new{ dimen=dimen_in, directory}, BottomContainer:new{ dimen=dimen_in, nbitems}, }, } 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 : various appearances if self.do_hint_opened and DocSettings:hasSidecarFile(self.filepath) then self.been_opened = true end 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 if bookinfo.has_cover and bookinfo.cover_sizetag ~= "M" then -- there is a cover, but it's a small one (made by ListMenuItem), -- and it would be ugly if scaled up to MosaicMenuItem size: -- do as if not found to force a new extraction with our size if bookinfo.cover_bb then bookinfo.cover_bb:free() end bookinfo = nil -- Note: with the current size differences between FileManager -- and the History windows, we'll get lower max_img_* in History. -- So, when one get Items first generated by the other, it will -- have to do some scaling. Hopefully, people most probably -- browse a lot more files than have them in history, so -- it's most probably History that will have to do some scaling. end -- if not has_cover, book has no cover, no need to try again else -- cover was not fetched previously, do as if not found -- to force a new extraction bookinfo = nil end end if bookinfo then -- This book is known local cover_bb_used = false self.bookinfo_found = true -- For wikipedia saved as epub, we made a cover from the 1st pic of the page, -- which may not say much about the book. So, here, pretend we don't have -- a cover if bookinfo.authors and bookinfo.authors:match("^Wikipedia ") then bookinfo.has_cover = nil end if self.do_cover_image and bookinfo.has_cover and not bookinfo.ignore_cover then cover_bb_used = true -- Let ImageWidget do the scaling and give us a bb that fit local scale_factor = math.min(max_img_w / bookinfo.cover_w, max_img_h / bookinfo.cover_h) local image= ImageWidget:new{ image = bookinfo.cover_bb, scale_factor = scale_factor, } image:_render() local image_size = image:getSize() widget = CenterContainer:new{ dimen = dimen, 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, color = self.file_deleted and Blitbuffer.COLOR_DARK_GRAY or nil, image, } } -- Let menu know it has some item with images self.menu._has_cover_images = true self._has_cover_image = true else -- add Series metadata if requested local series_mode = BookInfoManager:getSetting("series_mode") local title_add, authors_add 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 bookinfo.title then title_add = " - " .. bookinfo.series else title_add = bookinfo.series end end if not bookinfo.authors then if series_mode == "append_series_to_authors" or series_mode == "series_in_separate_line" then authors_add = bookinfo.series end else if series_mode == "append_series_to_authors" then authors_add = " - " .. bookinfo.series elseif series_mode == "series_in_separate_line" then authors_add = "\n \n" .. bookinfo.series end end end widget = CenterContainer:new{ dimen = dimen, FakeCover:new{ -- reduced width to make it look less squared, more like a book width = math.floor(dimen.w * 7/8), height = dimen.h, bordersize = border_size, filename = self.text, title = not bookinfo.ignore_meta and bookinfo.title, authors = not bookinfo.ignore_meta and bookinfo.authors, title_add = not bookinfo.ignore_meta and title_add, authors_add = not bookinfo.ignore_meta and authors_add, book_lang = not bookinfo.ignore_meta and bookinfo.language, file_deleted = self.file_deleted, } } end -- In case we got a blitbuffer and didnt use it (ignore_cover, wikipedia), 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 -- 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 -- This cache is shared with ListMenu, so we need to fill it with the same -- info here than there, even if we don't need them all here. if not self.menu.cover_info_cache then self.menu.cover_info_cache = {} end local percent_finished, status local pages = bookinfo.pages 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]) -- luacheck: no unused 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 == "completed" then percent_finished = 100 end self.percent_finished = percent_finished 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 making the same FakeCover 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 -- Same as real FakeCover, but let it be squared (like a file) local hint = "…" -- display hint it's being loaded if self.file_deleted then -- unless file was deleted (can happen with History) hint = _("(deleted)") end widget = CenterContainer:new{ dimen = dimen, FakeCover:new{ width = dimen.w, height = dimen.h, bordersize = border_size, filename = self.text, filename_add = "\n" .. hint, initial_sizedec = 4, -- start with a smaller font when filenames only file_deleted = self.file_deleted, } } 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 self._underline_container[1] = widget end function MosaicMenuItem: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("MosaicMenuItem: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 widget local target = self 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 local show_progress_in_mosaic = BookInfoManager:getSetting("show_progress_in_mosaic") -- to which we paint over a dogear if needed if not show_progress_in_mosaic and corner_mark and self.do_hint_opened and self.been_opened then -- align it on bottom right corner of sub-widget local target = self[1][1][1] local ix if BD.mirroredUILayout() then ix = math.floor((self.width - target.dimen.w)/2) else ix = self.width - math.ceil((self.width - target.dimen.w)/2) - corner_mark:getSize().w end local iy = self.height - math.ceil((self.height - target.dimen.h)/2) - corner_mark:getSize().h -- math.ceil() makes it looks better than math.floor() corner_mark:paintTo(bb, x+ix, y+iy) end if show_progress_in_mosaic and self.percent_finished then local cover_item = self[1][1][1] local width = math.min(self.width * 0.60, cover_item.width) progress_widget.width = width local pos_x = x + self.width - progress_widget.width - math.ceil((self.width - cover_item.width) / 2) - progress_widget.bordersize local pos_y = y + self.height - progress_widget.height - math.ceil((self.height - cover_item.height) / 2) progress_widget:setPercentage(self.percent_finished) progress_widget:paintTo(bb, pos_x, pos_y) 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 -- On book's right (for similarity to ListMenuItem) local target = self[1][1][1] local d_w = Screen:scaleBySize(3) local d_h = math.ceil(target.dimen.h / 8) -- Paint it directly relative to target.dimen.x/y which has been computed at this point local ix if BD.mirroredUILayout() then ix = - d_w + 1 -- Set alternate dimen to be marked as dirty to include this description in refresh local x_overflow_left = x - target.dimen.x+ix -- positive if overflow if x_overflow_left > 0 then self.refresh_dimen = self[1].dimen:copy() self.refresh_dimen.x = self.refresh_dimen.x - x_overflow_left self.refresh_dimen.w = self.refresh_dimen.w + x_overflow_left end else ix = target.dimen.w - 1 -- Set alternate dimen to be marked as dirty to include this description in refresh local x_overflow_right = target.dimen.x+ix+d_w - x - self.dimen.w if x_overflow_right > 0 then self.refresh_dimen = self[1].dimen:copy() self.refresh_dimen.w = self.refresh_dimen.w + x_overflow_right end end local iy = 0 bb:paintBorder(target.dimen.x+ix, target.dimen.y+iy, d_w, d_h, 1) end end -- As done in MenuItem function MosaicMenuItem:onFocus() self._underline_container.color = Blitbuffer.COLOR_BLACK return true end function MosaicMenuItem:onUnfocus() self._underline_container.color = Blitbuffer.COLOR_WHITE return true end function MosaicMenuItem: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 MosaicMenuItem:onTapSelect(arg) self.menu:onMenuSelect(self.entry) return true end function MosaicMenuItem: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 MosaicMenu = {} function MosaicMenu:_recalculateDimen() local portrait_mode = Screen:getWidth() <= Screen:getHeight() -- 3 x 3 grid by default if not initially provided (4 x 2 in landscape mode) if portrait_mode then self.nb_cols = self.nb_cols_portrait or 3 self.nb_rows = self.nb_rows_portrait or 3 else self.nb_cols = self.nb_cols_landscape or 4 self.nb_rows = self.nb_rows_landscape or 2 end self.perpage = self.nb_rows * self.nb_cols 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 -- Find out available height from other UI elements made in Menu self.others_height = 0 if self.title_bar then -- 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 end -- Set our items target size self.item_margin = Screen:scaleBySize(10) self.item_height = math.floor((self.inner_dimen.h - self.others_height - (1+self.nb_rows)*self.item_margin) / self.nb_rows) self.item_width = math.floor((self.inner_dimen.w - (1+self.nb_cols)*self.item_margin) / self.nb_cols) self.item_dimen = Geom:new{ w = self.item_width, h = self.item_height } -- Create or replace corner_mark if needed -- 1/12 (larger) or 1/16 (smaller) of cover looks allright local mark_size = math.floor(math.min(self.item_width, self.item_height) / 16) 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 -- Create or replace progress_widget if needed local progress_bar_width = self.item_width * 0.60; if not progress_widget or progress_widget.width ~= progress_bar_width then progress_widget = ProgressWidget:new{ bgcolor = Blitbuffer.COLOR_WHITE, fillcolor = Blitbuffer.COLOR_BLACK, bordercolor = Blitbuffer.COLOR_BLACK, height = Screen:scaleBySize(6), margin_h = Screen:scaleBySize(1), width = progress_bar_width, radius = Size.border.thin, bordersize = Size.border.thin, } end end function MosaicMenu:_updateItemsBuildUI() -- Build our grid local idx_offset = (self.page - 1) * self.perpage local cur_row = nil for idx = 1, self.perpage do local entry = self.item_table[idx_offset + idx] if entry == nil then break end if idx % self.nb_cols == 1 then -- new row table.insert(self.item_group, VerticalSpan:new{ width = self.item_margin }) cur_row = HorizontalGroup:new{} -- Have items on the possibly non-fully filled last row aligned to the left local container = self._do_center_partial_rows and CenterContainer or LeftContainer table.insert(self.item_group, container:new{ dimen = Geom:new{ w = self.inner_dimen.w, h = self.item_height }, cur_row }) table.insert(cur_row, HorizontalSpan:new({ width = self.item_margin })) 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 = MosaicMenuItem: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, } table.insert(cur_row, item_tmp) table.insert(cur_row, HorizontalSpan:new({ width = self.item_margin })) -- 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 table.insert(self.item_group, VerticalSpan:new{ width = self.item_margin }) -- bottom padding end return MosaicMenu