mirror of
https://github.com/koreader/koreader
synced 2024-11-11 19:11:14 +00:00
552 lines
21 KiB
Lua
552 lines
21 KiB
Lua
--[[--
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This module provides a way to display book information (filename and book metadata)
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]]
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local BD = require("ui/bidi")
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local ButtonDialog = require("ui/widget/buttondialog")
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local ConfirmBox = require("ui/widget/confirmbox")
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local Device = require("device")
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local DocSettings = require("docsettings")
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local Document = require("document/document")
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local DocumentRegistry = require("document/documentregistry")
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local Event = require("ui/event")
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local InfoMessage = require("ui/widget/infomessage")
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local InputDialog = require("ui/widget/inputdialog")
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local TextViewer = require("ui/widget/textviewer")
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local UIManager = require("ui/uimanager")
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local WidgetContainer = require("ui/widget/container/widgetcontainer")
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local filemanagerutil = require("apps/filemanager/filemanagerutil")
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local lfs = require("libs/libkoreader-lfs")
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local util = require("util")
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local _ = require("gettext")
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local BookInfo = WidgetContainer:extend{
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props = {
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"title",
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"authors",
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"series",
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"series_index",
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"language",
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"keywords",
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"description",
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},
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prop_text = {
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cover = _("Cover image:"),
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title = _("Title:"),
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authors = _("Authors:"),
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series = _("Series:"),
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series_index = _("Series index:"),
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language = _("Language:"),
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keywords = _("Keywords:"),
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description = _("Description:"),
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pages = _("Pages:"),
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},
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}
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function BookInfo:init()
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if self.ui then -- only for Reader menu
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self.ui.menu:registerToMainMenu(self)
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end
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end
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function BookInfo:addToMainMenu(menu_items)
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menu_items.book_info = {
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text = _("Book information"),
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callback = function()
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self:onShowBookInfo()
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end,
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}
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end
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-- Shows book information.
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function BookInfo:show(file, book_props)
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self.prop_updated = nil
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local kv_pairs = {}
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-- File section
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local folder, filename = util.splitFilePathName(file)
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local __, filetype = filemanagerutil.splitFileNameType(filename)
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local attr = lfs.attributes(file)
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local file_size = attr.size or 0
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local size_f = util.getFriendlySize(file_size)
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local size_b = util.getFormattedSize(file_size)
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table.insert(kv_pairs, { _("Filename:"), BD.filename(filename) })
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table.insert(kv_pairs, { _("Format:"), filetype:upper() })
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table.insert(kv_pairs, { _("Size:"), string.format("%s (%s bytes)", size_f, size_b) })
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table.insert(kv_pairs, { _("File date:"), os.date("%Y-%m-%d %H:%M:%S", attr.modification) })
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table.insert(kv_pairs, { _("Folder:"), BD.dirpath(filemanagerutil.abbreviate(folder)), separator = true })
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-- Book section
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-- book_props may be provided if caller already has them available
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-- but it may lack "pages", that we may get from sidecar file
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if not book_props or not book_props.pages then
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book_props = BookInfo.getDocProps(file, book_props)
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end
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-- cover image
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self.custom_book_cover = DocSettings:findCoverFile(file)
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local key_text = self.prop_text["cover"]
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if self.custom_book_cover then
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key_text = "\u{F040} " .. key_text
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end
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table.insert(kv_pairs, { key_text, _("Tap to display"),
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callback = function()
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self:onShowBookCover(file)
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end,
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hold_callback = function()
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self:showCustomDialog(file, book_props)
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end,
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separator = true,
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})
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-- metadata
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local custom_props
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local custom_metadata_file = DocSettings:getCustomMetadataFile(file)
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if custom_metadata_file then
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self.custom_doc_settings = DocSettings:openCustomMetadata(custom_metadata_file)
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custom_props = self.custom_doc_settings:readSetting("custom_props")
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end
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local values_lang
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for _i, prop_key in ipairs(self.props) do
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local prop = book_props[prop_key]
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if prop == nil or prop == "" then
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prop = _("N/A")
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elseif prop_key == "title" then
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prop = BD.auto(prop)
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elseif prop_key == "authors" or prop_key == "keywords" then
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if prop:find("\n") then -- BD auto isolate each entry
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prop = util.splitToArray(prop, "\n")
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for i = 1, #prop do
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prop[i] = BD.auto(prop[i])
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end
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prop = table.concat(prop, "\n")
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else
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prop = BD.auto(prop)
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end
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elseif prop_key == "language" then
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-- Get a chance to have title, authors... rendered with alternate
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-- glyphs for the book language (e.g. japanese book in chinese UI)
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values_lang = prop
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elseif prop_key == "description" then
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-- Description may (often in EPUB, but not always) or may not (rarely in PDF) be HTML
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prop = util.htmlToPlainTextIfHtml(prop)
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end
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key_text = self.prop_text[prop_key]
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if custom_props and custom_props[prop_key] then -- customized
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key_text = "\u{F040} " .. key_text
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end
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table.insert(kv_pairs, { key_text, prop,
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hold_callback = function()
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self:showCustomDialog(file, book_props, prop_key)
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end,
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})
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end
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-- pages
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local is_doc = self.document and true or false
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table.insert(kv_pairs, { self.prop_text["pages"], book_props["pages"] or _("N/A"), separator = is_doc })
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-- Page section
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if is_doc then
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local lines_nb, words_nb = self.ui.view:getCurrentPageLineWordCounts()
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if lines_nb == 0 then
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lines_nb = _("N/A")
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words_nb = _("N/A")
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end
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table.insert(kv_pairs, { _("Current page lines:"), lines_nb })
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table.insert(kv_pairs, { _("Current page words:"), words_nb })
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end
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local KeyValuePage = require("ui/widget/keyvaluepage")
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self.kvp_widget = KeyValuePage:new{
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title = _("Book information"),
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value_overflow_align = "right",
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kv_pairs = kv_pairs,
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values_lang = values_lang,
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close_callback = function()
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self.custom_doc_settings = nil
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self.custom_book_cover = nil
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if self.prop_updated then
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UIManager:broadcastEvent(Event:new("InvalidateMetadataCache", file))
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UIManager:broadcastEvent(Event:new("BookMetadataChanged", self.prop_updated))
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end
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end,
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}
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UIManager:show(self.kvp_widget)
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end
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function BookInfo.getCustomProp(prop_key, filepath)
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local custom_metadata_file = DocSettings:getCustomMetadataFile(filepath)
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return custom_metadata_file
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and DocSettings:openCustomMetadata(custom_metadata_file):readSetting("custom_props")[prop_key]
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end
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-- Returns extended and customized metadata.
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function BookInfo.extendProps(original_props, filepath)
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-- do not customize if filepath is not passed (eg from covermenu)
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local custom_metadata_file = filepath and DocSettings:getCustomMetadataFile(filepath)
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local custom_props = custom_metadata_file
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and DocSettings:openCustomMetadata(custom_metadata_file):readSetting("custom_props") or {}
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original_props = original_props or {}
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local props = {}
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for _, prop_key in ipairs(BookInfo.props) do
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props[prop_key] = custom_props[prop_key] or original_props[prop_key]
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end
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props.pages = original_props.pages
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-- if original title is empty, generate it as filename without extension
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props.display_title = props.title or filemanagerutil.splitFileNameType(filepath)
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return props
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end
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-- Returns customized document metadata, including number of pages.
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function BookInfo.getDocProps(file, book_props, no_open_document)
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if DocSettings:hasSidecarFile(file) then
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local doc_settings = DocSettings:open(file)
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if not book_props then
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-- Files opened after 20170701 have a "doc_props" setting with
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-- complete metadata and "doc_pages" with accurate nb of pages
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book_props = doc_settings:readSetting("doc_props")
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end
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if not book_props then
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-- File last opened before 20170701 may have a "stats" setting.
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-- with partial metadata, or empty metadata if statistics plugin
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-- was not enabled when book was read (we can guess that from
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-- the fact that stats.page = 0)
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local stats = doc_settings:readSetting("stats")
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if stats and stats.pages ~= 0 then
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-- title, authors, series, series_index, language
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book_props = Document:getProps(stats)
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end
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end
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-- Files opened after 20170701 have an accurate "doc_pages" setting.
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local doc_pages = doc_settings:readSetting("doc_pages")
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if doc_pages and book_props then
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book_props.pages = doc_pages
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end
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end
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-- If still no book_props (book never opened or empty "stats"),
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-- but custom metadata exists, it has a copy of original doc_props
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if not book_props then
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local custom_metadata_file = DocSettings:getCustomMetadataFile(file)
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if custom_metadata_file then
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book_props = DocSettings:openCustomMetadata(custom_metadata_file):readSetting("doc_props")
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end
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end
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-- If still no book_props, open the document to get them
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if not book_props and not no_open_document then
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local document = DocumentRegistry:openDocument(file)
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if document then
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local loaded = true
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local pages
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if document.loadDocument then -- CreDocument
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if not document:loadDocument(false) then -- load only metadata
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-- failed loading, calling other methods would segfault
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loaded = false
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end
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-- For CreDocument, we would need to call document:render()
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-- to get nb of pages, but the nb obtained by simply calling
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-- here document:getPageCount() is wrong, often 2 to 3 times
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-- the nb of pages we see when opening the document (may be
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-- some other cre settings should be applied before calling
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-- render() ?)
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else
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-- for all others than crengine, we seem to get an accurate nb of pages
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pages = document:getPageCount()
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end
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if loaded then
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book_props = document:getProps()
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book_props.pages = pages
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end
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document:close()
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end
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end
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return BookInfo.extendProps(book_props, file)
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end
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-- Shows book information for currently opened document.
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function BookInfo:onShowBookInfo()
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if self.document then
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self.ui.doc_props.pages = self.ui.doc_settings:readSetting("doc_pages")
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self:show(self.document.file, self.ui.doc_props)
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end
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end
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function BookInfo:showBookProp(prop_key, prop_text)
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if prop_key == "description" then
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prop_text = util.htmlToPlainTextIfHtml(prop_text)
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end
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UIManager:show(TextViewer:new{
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title = self.prop_text[prop_key],
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text = prop_text,
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})
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end
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function BookInfo:onShowBookDescription(description, file)
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if not description then
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if file then
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description = BookInfo.getDocProps(file).description
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elseif self.document then -- currently opened document
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description = self.ui.doc_props.description
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end
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end
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if description then
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self:showBookProp("description", description)
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else
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UIManager:show(InfoMessage:new{
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text = _("No book description available."),
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})
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end
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end
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function BookInfo:onShowBookCover(file, force_orig)
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local cover_bb = self:getCoverImage(self.document, file, force_orig)
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if cover_bb then
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local ImageViewer = require("ui/widget/imageviewer")
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local imgviewer = ImageViewer:new{
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image = cover_bb,
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with_title_bar = false,
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fullscreen = true,
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}
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UIManager:show(imgviewer)
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else
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UIManager:show(InfoMessage:new{
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text = _("No cover image available."),
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})
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end
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end
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function BookInfo:getCoverImage(doc, file, force_orig)
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local cover_bb
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-- check for a custom cover (orig cover is forcibly requested in "Book information" only)
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if not force_orig then
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local custom_cover = DocSettings:findCoverFile(file or (doc and doc.file))
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if custom_cover then
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local cover_doc = DocumentRegistry:openDocument(custom_cover)
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if cover_doc then
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cover_bb = cover_doc:getCoverPageImage()
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cover_doc:close()
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return cover_bb, custom_cover
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end
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end
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end
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-- orig cover
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local is_doc = doc and true or false
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if not is_doc then
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doc = DocumentRegistry:openDocument(file)
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if doc and doc.loadDocument then -- CreDocument
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doc:loadDocument(false) -- load only metadata
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end
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end
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if doc then
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cover_bb = doc:getCoverPageImage()
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if not is_doc then
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doc:close()
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end
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end
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return cover_bb
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end
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function BookInfo:updateBookInfo(file, book_props, prop_updated, prop_value_old)
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if prop_updated == "cover" and self.ui then
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self.ui.doc_settings:getCoverFile(true) -- reset cover file cache
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end
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self.prop_updated = {
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filepath = file,
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doc_props = book_props,
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metadata_key_updated = prop_updated,
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metadata_value_old = prop_value_old,
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}
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self.kvp_widget:onClose()
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self:show(file, book_props)
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end
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function BookInfo:setCustomBookCover(file, book_props)
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if self.custom_book_cover then -- reset custom cover
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if os.remove(self.custom_book_cover) then
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DocSettings:removeSidecarDir(file, util.splitFilePathName(self.custom_book_cover))
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self:updateBookInfo(file, book_props, "cover")
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end
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else -- choose an image and set custom cover
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local PathChooser = require("ui/widget/pathchooser")
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local path_chooser = PathChooser:new{
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select_directory = false,
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file_filter = function(filename)
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return DocumentRegistry:isImageFile(filename)
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end,
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onConfirm = function(image_file)
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if DocSettings:flushCustomCover(file, image_file) then
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self:updateBookInfo(file, book_props, "cover")
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end
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end,
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}
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UIManager:show(path_chooser)
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end
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end
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function BookInfo:setCustomMetadata(file, book_props, prop_key, prop_value)
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-- in file
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local custom_doc_settings, custom_props, display_title
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if self.custom_doc_settings then
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custom_doc_settings = self.custom_doc_settings
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custom_props = custom_doc_settings:readSetting("custom_props")
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else -- no custom metadata file, create new
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custom_doc_settings = DocSettings:openCustomMetadata()
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custom_props = {}
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display_title = book_props.display_title -- backup
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book_props.display_title = nil
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custom_doc_settings:saveSetting("doc_props", book_props) -- save a copy of original props
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end
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local prop_value_old = custom_props[prop_key] or book_props[prop_key]
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custom_props[prop_key] = prop_value -- nil when resetting a custom prop
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if next(custom_props) == nil then -- no more custom metadata
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os.remove(custom_doc_settings.custom_metadata_file)
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DocSettings:removeSidecarDir(file, util.splitFilePathName(custom_doc_settings.custom_metadata_file))
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else
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if book_props.pages then -- keep a copy of original 'pages' up to date
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local original_props = custom_doc_settings:readSetting("doc_props")
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original_props.pages = book_props.pages
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end
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custom_doc_settings:saveSetting("custom_props", custom_props)
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custom_doc_settings:flushCustomMetadata(file)
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end
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book_props.display_title = book_props.display_title or display_title -- restore
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-- in memory
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prop_value = prop_value or custom_doc_settings:readSetting("doc_props")[prop_key] -- set custom or restore original
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book_props[prop_key] = prop_value
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if prop_key == "title" then -- generate when resetting the customized title and original is empty
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book_props.display_title = book_props.title or filemanagerutil.splitFileNameType(file)
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end
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local ui = self.ui or require("apps/reader/readerui").instance
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if ui and ui.document and ui.document.file == file then -- currently opened document
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ui.doc_props[prop_key] = prop_value
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if prop_key == "title" then
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ui.doc_props.display_title = book_props.display_title
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end
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end
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self:updateBookInfo(file, book_props, prop_key, prop_value_old)
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end
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function BookInfo:showCustomEditDialog(file, book_props, prop_key)
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local prop = book_props[prop_key]
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if prop and prop_key == "description" then
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prop = util.htmlToPlainTextIfHtml(prop)
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end
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local input_dialog
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input_dialog = InputDialog:new{
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title = _("Edit book metadata:") .. " " .. self.prop_text[prop_key]:gsub(":", ""),
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input = prop,
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input_type = prop_key == "series_index" and "number",
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allow_newline = prop_key == "authors" or prop_key == "keywords" or prop_key == "description",
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buttons = {
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{
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{
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text = _("Cancel"),
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id = "close",
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callback = function()
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UIManager:close(input_dialog)
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end,
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},
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{
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text = _("Save"),
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callback = function()
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local prop_value = input_dialog:getInputValue()
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if prop_value and prop_value ~= "" then
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UIManager:close(input_dialog)
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self:setCustomMetadata(file, book_props, prop_key, prop_value)
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end
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end,
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},
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},
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},
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}
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UIManager:show(input_dialog)
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input_dialog:onShowKeyboard()
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end
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function BookInfo:showCustomDialog(file, book_props, prop_key)
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local original_prop, custom_prop, prop_is_cover
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if prop_key then -- metadata
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if self.custom_doc_settings then
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original_prop = self.custom_doc_settings:readSetting("doc_props")[prop_key]
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custom_prop = self.custom_doc_settings:readSetting("custom_props")[prop_key]
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else
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original_prop = book_props[prop_key]
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end
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if original_prop and prop_key == "description" then
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original_prop = util.htmlToPlainTextIfHtml(original_prop)
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end
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prop_is_cover = false
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else -- cover
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prop_key = "cover"
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prop_is_cover = true
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end
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local button_dialog
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|
local buttons = {
|
|
{
|
|
{
|
|
text = _("Copy original"),
|
|
enabled = original_prop ~= nil and Device:hasClipboard(),
|
|
callback = function()
|
|
UIManager:close(button_dialog)
|
|
Device.input.setClipboardText(original_prop)
|
|
end,
|
|
},
|
|
{
|
|
text = _("View original"),
|
|
enabled = original_prop ~= nil or prop_is_cover,
|
|
callback = function()
|
|
if prop_is_cover then
|
|
self:onShowBookCover(file, true)
|
|
else
|
|
self:showBookProp(prop_key, original_prop)
|
|
end
|
|
end,
|
|
},
|
|
},
|
|
{
|
|
{
|
|
text = _("Reset custom"),
|
|
enabled = custom_prop ~= nil or (prop_is_cover and self.custom_book_cover ~= nil),
|
|
callback = function()
|
|
local confirm_box = ConfirmBox:new{
|
|
text = prop_is_cover and _("Reset custom cover?\nImage file will be deleted.")
|
|
or _("Reset custom book metadata field?"),
|
|
ok_text = _("Reset"),
|
|
ok_callback = function()
|
|
UIManager:close(button_dialog)
|
|
if prop_is_cover then
|
|
self:setCustomBookCover(file, book_props)
|
|
else
|
|
self:setCustomMetadata(file, book_props, prop_key)
|
|
end
|
|
end,
|
|
}
|
|
UIManager:show(confirm_box)
|
|
end,
|
|
},
|
|
{
|
|
text = _("Set custom"),
|
|
enabled = not prop_is_cover or (prop_is_cover and self.custom_book_cover == nil),
|
|
callback = function()
|
|
UIManager:close(button_dialog)
|
|
if prop_is_cover then
|
|
self:setCustomBookCover(file, book_props)
|
|
else
|
|
self:showCustomEditDialog(file, book_props, prop_key)
|
|
end
|
|
end,
|
|
},
|
|
},
|
|
}
|
|
button_dialog = ButtonDialog:new{
|
|
title = _("Book metadata:") .. " " .. self.prop_text[prop_key]:gsub(":", ""),
|
|
title_align = "center",
|
|
buttons = buttons,
|
|
}
|
|
UIManager:show(button_dialog)
|
|
end
|
|
|
|
return BookInfo
|