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Code Issues Actions Packages Projects Releases Wiki Activity

ReaderToc: add option to show chapter lengths (#11546)

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This commit is contained in:
poire-z
2024-03-20 10:09:44 +01:00
committed by GitHub
parent c8c4e0301a
commit 67cd647d1a
3 changed files with 83 additions and 1 deletions
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55
frontend/apps/reader/modules/readertoc.lua
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@@ -104,6 +104,7 @@ end
function ReaderToc:resetToc()
self.toc = nil
self.toc_menu_items_built = false
self.toc_depth = nil
self.ticks = nil
self.ticks_flattened = nil
@@ -314,6 +315,37 @@ function ReaderToc:validateAndFixToc()
self.toc_depth = max_depth
end
function ReaderToc:completeTocWithChapterLengths()
local toc = self.toc
local first = 1
local last = #toc
if last == 0 then
return
end
local prev_item_by_level = {}
for i = first, last do
local item = toc[i]
local page = item.page
local depth = item.depth
for j=#prev_item_by_level, depth, -1 do
local prev_item = prev_item_by_level[j]
if prev_item then
prev_item.chapter_length = page - prev_item.page
end
prev_item_by_level[j] = nil
end
prev_item_by_level[depth] = item
end
-- Set the length of the last ones
local page = self.ui.document:getPageCount()
for j=#prev_item_by_level, 0, -1 do
local prev_item = prev_item_by_level[j]
if prev_item then
prev_item.chapter_length = page - prev_item.page
end
end
end
function ReaderToc:getTocIndexByPage(pn_or_xp, skip_ignored_ticks)
self:fillToc()
if #self.toc == 0 then return end
@@ -661,11 +693,16 @@ function ReaderToc:onShowToc()
local items_per_page = G_reader_settings:readSetting("toc_items_per_page") or self.toc_items_per_page_default
local items_font_size = G_reader_settings:readSetting("toc_items_font_size") or Menu.getItemFontSize(items_per_page)
local items_show_chapter_length = G_reader_settings:isTrue("toc_items_show_chapter_length")
local items_with_dots = G_reader_settings:nilOrTrue("toc_items_with_dots")
self:fillToc()
-- build menu items
if #self.toc > 0 and not self.toc[1].text then
if #self.toc > 0 and not self.toc_menu_items_built then
self.toc_menu_items_built = true
if items_show_chapter_length then
self:completeTocWithChapterLengths()
end
-- Have the width of 4 spaces be the unit of indentation
local tmp = TextWidget:new{
text = " ",
@@ -679,6 +716,11 @@ function ReaderToc:onShowToc()
v.index = k
v.indent = toc_indent * (v.depth-1)
v.text = self:cleanUpTocTitle(v.title, true)
if items_show_chapter_length then
v.post_text = T("(%1)", v.chapter_length)
else
v.post_text = nil
end
v.bidi_wrap_func = BD.auto
v.mandatory = v.page
if has_hidden_flows then
@@ -1147,6 +1189,17 @@ Enabling this option will restrict display to the chapter titles of progress bar
UIManager:show(items_font)
end,
}
menu_items.toc_items_show_chapter_length = {
text = _("Show chapter length"),
keep_menu_open = true,
checked_func = function()
return not G_reader_settings:nilOrFalse("toc_items_show_chapter_length")
end,
callback = function()
G_reader_settings:flipNilOrFalse("toc_items_show_chapter_length")
self.toc_menu_items_built = false
end
}
menu_items.toc_items_with_dots = {
text = _("With dots"),
keep_menu_open = true,