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koreader/plugins/coverbrowser.koplugin/main.lua
poire-z 3b5cd4c23b CoverBrowser plugin: alt views for File Browser and History (#2940)
* CoverBrowser plugin: alt views for File Browser and History

* Added Prune cache and Compact cache menu actions

* Support for book descriptions, and settings stored in db
2017-08-17 19:34:36 +02:00

444 lines
22 KiB
Lua

local InputContainer = require("ui/widget/container/inputcontainer")
local UIManager = require("ui/uimanager")
local logger = require("logger")
local _ = require("gettext")
local BookInfoManager = require("bookinfomanager")
--[[
This plugin provides additional display modes to file browsers (File Manager
and History).
It does that by dynamically replacing some methods code to their classes
or instances.
--]]
-- We need to save the original methods early here as locals.
-- For some reason, saving them as attributes in init() does not allow
-- us to get back to classic mode
local FileChooser = require("ui/widget/filechooser")
local _FileChooser__recalculateDimen_orig = FileChooser._recalculateDimen
local _FileChooser_updateItems_orig = FileChooser.updateItems
local _FileChooser_onCloseWidget_orig = FileChooser.onCloseWidget
local _FileChooser_onSwipe_orig = FileChooser.onSwipe
local FileManagerHistory = require("apps/filemanager/filemanagerhistory")
local _FileManagerHistory_updateItemTable_orig = FileManagerHistory.updateItemTable
-- Available display modes
local DISPLAY_MODES = {
-- nil or "" -- classic : filename only
mosaic_image = true, -- 3x3 grid covers with images
mosaic_text = true, -- 3x3 grid covers text only
list_image_meta = true, -- image with metadata (title/authors)
list_only_meta = true, -- metadata with no image
list_image_filename = true, -- image with filename (no metadata)
}
local CoverBrowser = InputContainer:new{}
function CoverBrowser:init()
-- As we don't know how to run and kill subprocesses on Android (for
-- background info extraction), disable this plugin for now.
-- XXX What about the emulator on Windows ?
if require("ffi/util").isAndroid() then
return
end
self.filemanager_display_mode = BookInfoManager:getSetting("filemanager_display_mode")
self:setupFileManagerDisplayMode()
self.history_display_mode = BookInfoManager:getSetting("history_display_mode")
self:setupHistoryDisplayMode()
self.ui.menu:registerToMainMenu(self)
-- If KOReader has started directly to FileManager, the FileManager
-- instance is being init()'ed and there is no FileManager.instance yet,
-- but there'll be one at next tick.
UIManager:nextTick(function()
self:refreshFileManagerInstance()
end)
end
function CoverBrowser:addToMainMenu(menu_items)
if not self.ui.view then -- only for FileManager menu
menu_items.filemanager_display_mode = {
text = _("Display mode"),
sub_item_table = {
-- selecting these does not close menu, which may be nice
-- so one can see how they look below the menu
{
text = _("Classic (filename only)"),
checked_func = function() return not self.filemanager_display_mode end,
callback = function()
self:setupFileManagerDisplayMode("")
end,
},
{
text = _("Mosaic with cover images"),
checked_func = function() return self.filemanager_display_mode == "mosaic_image" end,
callback = function()
self:setupFileManagerDisplayMode("mosaic_image")
end,
},
{
text = _("Mosaic with text covers"),
checked_func = function() return self.filemanager_display_mode == "mosaic_text" end,
callback = function()
self:setupFileManagerDisplayMode("mosaic_text")
end,
},
{
text = _("List with image and metadata"),
checked_func = function() return self.filemanager_display_mode == "list_image_meta" end,
callback = function()
self:setupFileManagerDisplayMode("list_image_meta")
end,
},
{
text = _("List with metadata, no image"),
checked_func = function() return self.filemanager_display_mode == "list_only_meta" end,
callback = function()
self:setupFileManagerDisplayMode("list_only_meta")
end,
},
{
text = _("List with image and filename"),
checked_func = function() return self.filemanager_display_mode == "list_image_filename" end,
callback = function()
self:setupFileManagerDisplayMode("list_image_filename")
end,
separator = true,
},
-- Plug the same choices for History here as a submenu
-- (Any other suitable place for that ?)
{
separator = true,
text = _("History display mode"),
sub_item_table = {
{
text = _("Classic (filename only)"),
checked_func = function() return not self.history_display_mode end,
callback = function()
self:setupHistoryDisplayMode("")
end,
},
{
text = _("Mosaic with cover images"),
checked_func = function() return self.history_display_mode == "mosaic_image" end,
callback = function()
self:setupHistoryDisplayMode("mosaic_image")
end,
},
{
text = _("Mosaic with text covers"),
checked_func = function() return self.history_display_mode == "mosaic_text" end,
callback = function()
self:setupHistoryDisplayMode("mosaic_text")
end,
},
{
text = _("List with image and metadata"),
checked_func = function() return self.history_display_mode == "list_image_meta" end,
callback = function()
self:setupHistoryDisplayMode("list_image_meta")
end,
},
{
text = _("List with metadata, no image"),
checked_func = function() return self.history_display_mode == "list_only_meta" end,
callback = function()
self:setupHistoryDisplayMode("list_only_meta")
end,
},
{
text = _("List with image and filename"),
checked_func = function() return self.history_display_mode == "list_image_filename" end,
callback = function()
self:setupHistoryDisplayMode("list_image_filename")
end,
separator = true,
},
},
},
-- Misc settings
{
text = _("Other settings"),
sub_item_table = {
{
text = _("Show hint for books with description"),
checked_func = function() return not BookInfoManager:getSetting("no_hint_description") end,
callback = function()
if BookInfoManager:getSetting("no_hint_description") then
BookInfoManager:saveSetting("no_hint_description", false)
else
BookInfoManager:saveSetting("no_hint_description", true)
end
self:refreshFileManagerInstance()
end,
},
{
text = _("Show hint for opened books in history"),
checked_func = function() return BookInfoManager:getSetting("history_hint_opened") end,
callback = function()
if BookInfoManager:getSetting("history_hint_opened") then
BookInfoManager:saveSetting("history_hint_opened", false)
else
BookInfoManager:saveSetting("history_hint_opened", true)
end
self:refreshFileManagerInstance()
end,
},
{
text = _("Append series metadata to authors"),
checked_func = function() return BookInfoManager:getSetting("append_series_to_authors") end,
callback = function()
if BookInfoManager:getSetting("append_series_to_authors") then
BookInfoManager:saveSetting("append_series_to_authors", false)
else
BookInfoManager:saveSetting("append_series_to_authors", true)
end
self:refreshFileManagerInstance()
end,
},
{
text = _("Append series metadata to title"),
checked_func = function() return BookInfoManager:getSetting("append_series_to_title") end,
callback = function()
if BookInfoManager:getSetting("append_series_to_title") then
BookInfoManager:saveSetting("append_series_to_title", false)
else
BookInfoManager:saveSetting("append_series_to_title", true)
end
self:refreshFileManagerInstance()
end,
},
},
},
{
text = _("Book info cache management"),
sub_item_table = {
{
text_func = function() -- add current db size to menu text
local sstr = BookInfoManager:getDbSize()
return _("Current cache size: ") .. sstr
end,
-- no callback, only for information
},
{
text = _("Prune cache of removed books"),
callback = function()
local ConfirmBox = require("ui/widget/confirmbox")
UIManager:close(self.file_dialog)
UIManager:show(ConfirmBox:new{
-- Checking file existences is quite fast, but deleting entries is slow.
text = _("Are you sure that you want to prune cache of removed books?\n(This may take a while.)"),
ok_text = _("Prune cache"),
ok_callback = function()
local InfoMessage = require("ui/widget/infomessage")
local msg = InfoMessage:new{ text = _("Pruning cache of removed books…") }
UIManager:show(msg)
UIManager:nextTick(function()
local summary = BookInfoManager:removeNonExistantEntries()
UIManager:close(msg)
UIManager:show( InfoMessage:new{ text = summary } )
end)
end
})
end,
},
{
text = _("Compact cache database"),
callback = function()
local ConfirmBox = require("ui/widget/confirmbox")
UIManager:close(self.file_dialog)
UIManager:show(ConfirmBox:new{
text = _("Are you sure that you want to compact cache database?\n(This may take a while.)"),
ok_text = _("Compact database"),
ok_callback = function()
local InfoMessage = require("ui/widget/infomessage")
local msg = InfoMessage:new{ text = _("Compacting cache database…") }
UIManager:show(msg)
UIManager:nextTick(function()
local summary = BookInfoManager:compactDb()
UIManager:close(msg)
UIManager:show( InfoMessage:new{ text = summary } )
end)
end
})
end,
},
{
text = _("Delete cache database"),
callback = function()
local ConfirmBox = require("ui/widget/confirmbox")
UIManager:close(self.file_dialog)
UIManager:show(ConfirmBox:new{
text = _("Are you sure that you want to delete cover and metadata cache?\n(This will also reset your display mode settings.)"),
ok_text = _("Purge"),
ok_callback = function()
BookInfoManager:deleteDb()
end
})
end,
},
},
},
},
}
end
end
function CoverBrowser:refreshFileManagerInstance(cleanup)
local FileManager = require("apps/filemanager/filemanager")
local fm = FileManager.instance
if fm then
local fc = fm.file_chooser
if cleanup then -- clean instance properties we may have set
if fc.onFileHold_orig then
-- remove our onFileHold that extended file_dialog with new buttons
fc.onFileHold = fc.onFileHold_orig
fc.onFileHold_orig = nil
fc.onFileHold_ours = nil
end
end
fc:updateItems()
end
end
function CoverBrowser:setupFileManagerDisplayMode(display_mode)
if not display_mode then -- if none provided, use current one
display_mode = self.filemanager_display_mode
end
if not DISPLAY_MODES[display_mode] then
display_mode = nil
end
self.filemanager_display_mode = display_mode
BookInfoManager:saveSetting("filemanager_display_mode", self.filemanager_display_mode)
logger.dbg("CoverBrowser: setting FileManager display mode to:", display_mode or "classic")
if not display_mode then -- classic mode
-- Put back original methods
FileChooser.updateItems = _FileChooser_updateItems_orig
FileChooser.onCloseWidget = _FileChooser_onCloseWidget_orig
FileChooser.onSwipe = _FileChooser_onSwipe_orig
FileChooser._recalculateDimen = _FileChooser__recalculateDimen_orig
-- Also clean-up what we added, even if it does not bother original code
FileChooser._updateItemsBuildUI = nil
FileChooser._do_cover_images = nil
FileChooser._do_filename_only = nil
FileChooser._do_hint_opened = nil
self:refreshFileManagerInstance(true)
return
end
-- In both mosaic and list modes, replace original methods with those from
-- our generic CoverMenu
local CoverMenu = require("covermenu")
FileChooser.updateItems = CoverMenu.updateItems
FileChooser.onCloseWidget = CoverMenu.onCloseWidget
FileChooser.onSwipe = CoverMenu.onSwipe
if display_mode == "mosaic_image" or display_mode == "mosaic_text" then -- mosaic mode
-- Replace some other original methods with those from our MosaicMenu
local MosaicMenu = require("mosaicmenu")
FileChooser._recalculateDimen = MosaicMenu._recalculateDimen
FileChooser._updateItemsBuildUI = MosaicMenu._updateItemsBuildUI
-- Set MosaicMenu behaviour:
FileChooser._do_cover_images = display_mode ~= "mosaic_text"
FileChooser._do_hint_opened = true -- dogear at bottom
-- One could override default 3x3 grid here (put that as settings ?)
-- FileChooser.nb_cols_portrait = 4
-- FileChooser.nb_rows_portrait = 4
-- FileChooser.nb_cols_landscape = 6
-- FileChooser.nb_rows_landscape = 3
elseif display_mode == "list_image_meta" or display_mode == "list_only_meta" or
display_mode == "list_image_filename" then -- list modes
-- Replace some other original methods with those from our ListMenu
local ListMenu = require("listmenu")
FileChooser._recalculateDimen = ListMenu._recalculateDimen
FileChooser._updateItemsBuildUI = ListMenu._updateItemsBuildUI
-- Set ListMenu behaviour:
FileChooser._do_cover_images = display_mode ~= "list_only_meta"
FileChooser._do_filename_only = display_mode == "list_image_filename"
FileChooser._do_hint_opened = true -- dogear at bottom
end
self:refreshFileManagerInstance()
end
local function _FileManagerHistory_updateItemTable(self)
-- 'self' here is the single FileManagerHistory instance
-- FileManagerHistory has just created a new instance of Menu as 'hist_menu'
-- at each display of History. Soon after instantiation, this method
-- is called. The first time it is called, we replace some methods.
local display_mode = self.display_mode
local hist_menu = self.hist_menu
if not hist_menu._coverbrowser_overridden then
hist_menu._coverbrowser_overridden = true
-- In both mosaic and list modes, replace original methods with those from
-- our generic CoverMenu
local CoverMenu = require("covermenu")
hist_menu.updateItems = CoverMenu.updateItems
hist_menu.onCloseWidget = CoverMenu.onCloseWidget
hist_menu.onSwipe = CoverMenu.onSwipe
-- Also replace original onMenuHold (it will use original method, so remember it)
hist_menu.onMenuHold_orig = hist_menu.onMenuHold
hist_menu.onMenuHold = CoverMenu.onHistoryMenuHold
if display_mode == "mosaic_image" or display_mode == "mosaic_text" then -- mosaic mode
-- Replace some other original methods with those from our MosaicMenu
local MosaicMenu = require("mosaicmenu")
hist_menu._recalculateDimen = MosaicMenu._recalculateDimen
hist_menu._updateItemsBuildUI = MosaicMenu._updateItemsBuildUI
-- Set MosaicMenu behaviour:
hist_menu._do_cover_images = display_mode ~= "mosaic_text"
-- no need for do_hint_opened with History
elseif display_mode == "list_image_meta" or display_mode == "list_only_meta" or
display_mode == "list_image_filename" then -- list modes
-- Replace some other original methods with those from our ListMenu
local ListMenu = require("listmenu")
hist_menu._recalculateDimen = ListMenu._recalculateDimen
hist_menu._updateItemsBuildUI = ListMenu._updateItemsBuildUI
-- Set ListMenu behaviour:
hist_menu._do_cover_images = display_mode ~= "list_only_meta"
hist_menu._do_filename_only = display_mode == "list_image_filename"
-- no need for do_hint_opened with History
end
hist_menu._do_hint_opened = BookInfoManager:getSetting("history_hint_opened")
end
-- We do now the single thing done in FileManagerHistory:updateItemTable():
hist_menu:switchItemTable(self.hist_menu_title, require("readhistory").hist)
end
function CoverBrowser:setupHistoryDisplayMode(display_mode)
if not display_mode then -- if none provided, use current one
display_mode = self.history_display_mode
end
if not DISPLAY_MODES[display_mode] then
display_mode = nil
end
self.history_display_mode = display_mode
BookInfoManager:saveSetting("history_display_mode", self.history_display_mode)
logger.dbg("CoverBrowser: setting History display mode to:", display_mode or "classic")
-- We only need to replace one FileManagerHistory method
if not display_mode then -- classic mode
-- Put back original methods
FileManagerHistory.updateItemTable = _FileManagerHistory_updateItemTable_orig
FileManagerHistory.display_mode = nil
else
-- Replace original method with the one defined above
FileManagerHistory.updateItemTable = _FileManagerHistory_updateItemTable
-- And let it know which display_mode we should use
FileManagerHistory.display_mode = display_mode
end
end
return CoverBrowser