Files
koreader/frontend/ui/widget/dictquicklookup.lua
NiLuJe 9cd305177e FocusManager: Fix focus_flags check in moveFocusTo, and deal with the fallout (#12361)
* FocusManager: Fix `focus_flags` check in `moveFocusTo` (0 is truthy in Lua, can't do AND checks like in C ;).)
* FileManager+FileChooser: Pass our custom title bar directly to FileChooser (which also means we can now use FC's FocusManager layout directly).
* FileChooser/Menu: Get rid of the weird `outer_title_bar` hack, and simply take a `custom_title_bar` pointer to an actual TitleBar instance instead.
* FileManager/Menu/ListMenu/CoverMenu: Fix content height computations in `_recalculateDimen` (all the non-FM cases were including an old and now unused padding value, `self.header_padding`, leading to more blank space at the bottom than necessary, and, worse, leading to different item heights between FM views, possibly leading to unnecessary thumbnail scaling !)
* ButtonDialog: Proper focus management when the ButtonTable is wrapped in a ScrollableContainer.
* ConfigDialog: Implement a stupid workaround for a weird FocusManager issue when going back from `[⋮]` buttons.
* ConfigDialog: Don't move the visual focus in `update` (i.e., we use `NOT_FOCUS` now that it works as intended).
* DictQuickLookup: Ensures the `Menu` key bind does the exact same thing as the hamburger icon.
* DictQuickLookup: Ensure we refocus after having mangled the FocusManager layout (prevents an old focus highlight from lingering on the wrong button).
* FileChooser: Stop flagging it as no_title, because it is *never* without a title. (This behavior was a remnant of the previous FM-specific title bar hacks, which are no longer a thing).
* FileChooser: Stop calling `mergeTitleBarIntoLayout` twice in `updateItems`. We already call Menu's, which handles it. (Prevents the title bar from being added twice to the FocusManager layout).
* FocusManager: Relax the `Unfocus` checks in `moveFocusTo` to ensure we *always* unfocus something (if unfocusing was requested), even if we have to blast the whole widget tree to do so. This ensures callers that mangle self.layout can expect things to work after calling it regardless of how borked the current focus is.
* FocusManager: Allow passing `focus_flags` to `refocusWidget`, so that it can be forwarded to the internal `moveFocusTo` call.
* FocusManager: The above also allows us to enforce a default that ensures we do *not* send a Focus event on Touch devices, even if they have the hasDPad devcap. This essentially restores the previous/current behavior of not showing the visual feedback from such focus "events" sent programmatically, given the `focus_flags` check fix at the root of this PR ;).
* InputDialog: Fix numerous issues relating to double/ghost instances of both InputText and VirtualKeyboard, ensuring we only ever have a single InputText & VK instance live.
* InputDialog: Make sure every way we have of hiding the VK play nice together, especially when the `toggleKeyboard` button (shown w/ `add_nav_bar`) is at play. And doubly so when we're `fullscreen`, as hiding the VK implies resizing the widget.
* InputText: Make sure we're flagged as in-focus when tapping inside the text field.
* InputText: Make sure we don't attempt to show an already-visible VK in the custom `hasDPad` `onFocus` handler.
* Menu: Get rid of an old and no longer used (nor meaningful) hack in `onFocus` about the initial/programmatically-sent Focus event.
* Menu: Get rid of the unused `header_padding` field mentioned earlier in the FM/FC fixes.
* Menu: Use `FOCUS_ONLY_ON_NT` in the explicit `moveFocusTo` call in `updatePageInfo`, so as to keep the current behavior of not showing the visual feedback of this focus on Touch devices.
* Menu: Make sure *all* the `moveFocusTo` calls are gated behind the `hasDPad` devcap (previously, that was only the case for `updatePageInfo`, but not `mergeTitleBarIntoLayout` (which is called by `updateItems`).
* MultiInputDialog: Actively get rid of the InputText & VK instances from the base class's constructor that we do not use.
* MultiInputDialog: Ensure the FocusManager layout is *slightly* less broken (password fields can still be a bit weird, though).
* TextViewer: Get rid of the unfocus -> layout mangling -> refocus hack now that `refocusWidget` handles this case sanely.
* VirtualKeyboard: Notify our parent InputDialog when we get closed, so it can act accordingly (e.g., resize itself when `fullscreen`).
* ScrollableContainer: Implement the necessary machinery for focus handling inside ButtonDialog (specifically, when scrolling via PgUp/PgDwn).
* TextEditor: Given the above fixes, the plugin is no longer disabled on non-touch devices.
* ReaderBookMark: Make sure we request a full refresh when closing the "Edit note" dialog, as CRe highlights may extend past its dimensions, and if it's closed separately from VK, the refresh would have been limited to its own dimensions, leaving a neat InputDialog-sized hole in the highlights ;).
2024-08-25 19:34:31 +02:00

1588 lines
63 KiB
Lua

local BD = require("ui/bidi")
local Blitbuffer = require("ffi/blitbuffer")
local ButtonDialog = require("ui/widget/buttondialog")
local ButtonTable = require("ui/widget/buttontable")
local CenterContainer = require("ui/widget/container/centercontainer")
local Device = require("device")
local Geom = require("ui/geometry")
local Event = require("ui/event")
local Font = require("ui/font")
local FrameContainer = require("ui/widget/container/framecontainer")
local GestureRange = require("ui/gesturerange")
local IconButton = require("ui/widget/iconbutton")
local InputContainer = require("ui/widget/container/inputcontainer")
local InputDialog = require("ui/widget/inputdialog")
local Math = require("optmath")
local MovableContainer = require("ui/widget/container/movablecontainer")
local OverlapGroup = require("ui/widget/overlapgroup")
local ScrollHtmlWidget = require("ui/widget/scrollhtmlwidget")
local ScrollTextWidget = require("ui/widget/scrolltextwidget")
local Size = require("ui/size")
local TextWidget = require("ui/widget/textwidget")
local TitleBar = require("ui/widget/titlebar")
local Translator = require("ui/translator")
local UIManager = require("ui/uimanager")
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 C_ = _.pgettext
local Input = Device.input
local Screen = Device.screen
local T = require("ffi/util").template
local time = require("ui/time")
--[[
Display quick lookup word definition
]]
local DictQuickLookup = InputContainer:extend{
results = nil,
lookupword = nil,
dictionary = nil,
definition = nil,
displayword = nil,
images = nil,
is_wiki = false,
is_wiki_fullpage = false,
is_html = false,
dict_index = 1,
width = nil,
height = nil,
-- sboxes containing highlighted text, quick lookup window tries to not hide the word
word_boxes = nil,
-- refresh_callback will be called before we trigger full refresh in onSwipe
refresh_callback = nil,
html_dictionary_link_tapped_callback = nil,
-- Static class member, holds a ref to the currently opened widgets (in instantiation order).
window_list = {},
-- Static class member, used by ReaderWiktionary to communicate state from a closed widget to the next opened one.
rotated_update_wiki_languages_on_close = nil,
}
function DictQuickLookup.getWikiSaveEpubDefaultDir()
local dir = G_reader_settings:readSetting("home_dir") or filemanagerutil.getDefaultDir()
if dir:sub(-1) ~= "/" then
dir = dir .. "/"
end
return dir .. "Wikipedia"
end
function DictQuickLookup:canSearch()
if self.is_wiki then
-- In the Wiki variant of this widget, the Search button is coopted to cycle between enabled languages.
if #self.wiki_languages > 1 then
return true
end
else
if self:isDocless() then
return false
end
-- This is to prevent an ineffective button when we're launched from the Reader's menu.
if self.highlight then
return true
end
end
return false
end
function DictQuickLookup:init()
self.dict_font_size = G_reader_settings:readSetting("dict_font_size") or 20
self.content_face = Font:getFace("cfont", self.dict_font_size)
local font_size_alt = self.dict_font_size - 4
if font_size_alt < 8 then
font_size_alt = 8
end
self.image_alt_face = Font:getFace("cfont", font_size_alt)
if Device:hasKeys() then
self.key_events.ReadPrevResult = { { Input.group.PgBack } }
self.key_events.ReadNextResult = { { Input.group.PgFwd } }
self.key_events.Close = { { Input.group.Back } }
self.key_events.MenuKeyPress = { { "Menu" } }
if Device:hasKeyboard() then
self.key_events.ChangeToPrevDict = { { "Shift", "Left" } }
self.key_events.ChangeToNextDict = { { "Shift", "Right" } }
elseif Device:hasScreenKB() then
self.key_events.ChangeToPrevDict = { { "ScreenKB", "Left" } }
self.key_events.ChangeToNextDict = { { "ScreenKB", "Right" } }
end
end
if Device:isTouchDevice() then
local range = Geom:new{
x = 0, y = 0,
w = Screen:getWidth(),
h = Screen:getHeight(),
}
self.ges_events = {
Tap = {
GestureRange:new{
ges = "tap",
range = range,
},
},
Swipe = {
GestureRange:new{
ges = "swipe",
range = range,
},
},
-- This was for selection of a single word with simple hold
-- HoldWord = {
-- GestureRange:new{
-- ges = "hold",
-- range = function()
-- return self.region
-- end,
-- },
-- -- callback function when HoldWord is handled as args
-- args = function(word)
-- self.ui:handleEvent(
-- -- don't pass self.highlight to subsequent lookup, we want
-- -- the first to be the only one to unhighlight selection
-- -- when closed
-- Event:new("LookupWord", word, true, {self.word_box}))
-- end
-- },
-- Allow selection of one or more words (see textboxwidget.lua) :
HoldStartText = {
GestureRange:new{
ges = "hold",
range = range,
},
},
HoldPanText = {
GestureRange:new{
ges = "hold",
range = range,
},
},
HoldReleaseText = {
GestureRange:new{
ges = "hold_release",
range = range,
},
-- callback function when HoldReleaseText is handled as args
args = function(text, hold_duration)
-- do this lookup in the same domain (dict/wikipedia)
local lookup_wikipedia = self.is_wiki
if hold_duration >= time.s(3) then
-- but allow switching domain with a long hold
lookup_wikipedia = not lookup_wikipedia
end
-- We don't pass self.highlight to subsequent lookup, we want the
-- first to be the only one to unhighlight selection when closed
if lookup_wikipedia then
self:lookupWikipedia(false, text)
else
self.ui:handleEvent(Event:new("LookupWord", text))
end
end
},
-- These will be forwarded to MovableContainer after some checks
ForwardingTouch = { GestureRange:new{ ges = "touch", range = range, }, },
ForwardingPan = { GestureRange:new{ ges = "pan", range = range, }, },
ForwardingPanRelease = { GestureRange:new{ ges = "pan_release", range = range, }, },
}
end
-- We no longer support setting a default dict with Tap on title.
-- self:changeToDefaultDict()
-- Now, dictionaries can be ordered (although not yet per-book), so trust the order set
self:changeDictionary(1, true) -- don't call update
-- And here comes the initial widget layout...
if self.is_wiki then
-- Get a copy of ReaderWikipedia.wiki_languages, with the current result
-- lang first (rotated, or added)
self.wiki_languages, self.update_wiki_languages_on_close = self.ui.wikipedia:getWikiLanguages(self.lang)
end
-- Bigger window if fullpage Wikipedia article being shown,
-- or when large windows for dict requested
local is_large_window = self.is_wiki_fullpage or G_reader_settings:isTrue("dict_largewindow")
if is_large_window then
self.width = Screen:getWidth() - 2*Size.margin.default
else
self.width = Screen:getWidth() - Screen:scaleBySize(80)
end
local frame_bordersize = Size.border.window
local inner_width = self.width - 2*frame_bordersize
-- Height will be computed below, after we build top an bottom
-- components, when we know how much height they are taking.
-- Dictionary title
self.dict_title = TitleBar:new{
width = inner_width,
title = self.displaydictname,
with_bottom_line = true,
bottom_v_padding = 0, -- padding handled below
close_callback = function() self:onClose() end,
close_hold_callback = function() self:onHoldClose() end,
-- visual hint: title left aligned for dict, centered for Wikipedia
align = self.is_wiki and "center" or "left",
show_parent = self,
lang = self.lang_out,
left_icon = "appbar.menu",
left_icon_tap_callback = function()
if self.is_wiki then
self:showWikiResultsMenu()
else
self:onShowResultsMenu()
end
end,
left_icon_hold_callback = not self.is_wiki and function() self:showResultsAltMenu() end or nil,
}
-- Scrollable offsets of the various showResults* menus and submenus,
-- so we can reopen them in the same state they were when closed.
self.menu_scrolled_offsets = {}
-- We'll also need to close any opened such menu when closing this DictQuickLookup
-- (needed if closing all DictQuickLookups via long-press on Close on the top one)
self.menu_opened = {}
-- This padding and the resulting width apply to the content
-- below the title: lookup word and definition
local content_padding_h = Size.padding.large
local content_padding_v = Size.padding.large -- added via VerticalSpan
self.content_width = inner_width - 2*content_padding_h
-- Spans between components
local top_to_word_span = VerticalSpan:new{ width = content_padding_v }
local word_to_definition_span = VerticalSpan:new{ width = content_padding_v }
local definition_to_bottom_span = VerticalSpan:new{ width = content_padding_v }
-- Lookup word
local word_font_face = "tfont"
-- Ensure this word doesn't get smaller than its definition
local word_font_size = math.max(22, self.dict_font_size)
-- Get the line height of the normal font size, as a base for sizing this component
if not self.word_line_height then
local test_widget = TextWidget:new{
text = "z",
face = Font:getFace(word_font_face, word_font_size),
}
self.word_line_height = test_widget:getSize().h
test_widget:free()
end
if self.is_wiki then
-- Wikipedia has longer titles, so use a smaller font,
word_font_size = math.max(18, self.dict_font_size)
end
local icon_size = Screen:scaleBySize(32)
local lookup_height = math.max(self.word_line_height, icon_size)
-- Edit button
local lookup_edit_button = IconButton:new{
icon = "edit",
width = icon_size,
height = icon_size,
padding = 0,
padding_left = Size.padding.small,
callback = function()
-- allow adjusting the queried word
self:lookupInputWord(self.word)
end,
hold_callback = function()
-- allow adjusting the current result word
self:lookupInputWord(self.lookupword)
end,
overlap_align = "right",
show_parent = self,
}
local lookup_edit_button_w = lookup_edit_button:getSize().w
-- Nb of results (if set)
local lookup_word_nb
local lookup_word_nb_w = 0
if self.displaynb then
self.displaynb_text = TextWidget:new{
text = self.displaynb,
face = Font:getFace("cfont", word_font_size),
padding = 0, -- smaller height for better aligmnent with icon
}
lookup_word_nb = FrameContainer:new{
margin = 0,
bordersize = 0,
padding = 0,
padding_left = Size.padding.small,
padding_right = lookup_edit_button_w + Size.padding.default,
overlap_align = "right",
self.displaynb_text,
}
lookup_word_nb_w = lookup_word_nb:getSize().w
end
-- Lookup word
self.lookup_word_text = TextWidget:new{
text = self.displayword,
face = Font:getFace(word_font_face, word_font_size),
bold = true,
max_width = self.content_width - math.max(lookup_edit_button_w, lookup_word_nb_w),
padding = 0, -- to be aligned with lookup_word_nb
lang = self.lang_in
}
-- Group these 3 widgets
local lookup_word = OverlapGroup:new{
dimen = {
w = self.content_width,
h = lookup_height,
},
self.lookup_word_text,
lookup_edit_button,
lookup_word_nb, -- last, as this might be nil
}
-- Different sets of buttons whether fullpage or not
local buttons
if self.is_wiki_fullpage then
-- A save and a close button
buttons = {
{
{
id = "save",
text = _("Save as EPUB"),
callback = function()
local InfoMessage = require("ui/widget/infomessage")
local ConfirmBox = require("ui/widget/confirmbox")
-- if forced_lang was specified, it may not be in our wiki_languages,
-- but ReaderWikipedia will have put it in result.lang
local lang = self.lang or self.wiki_languages[1]
-- Find a directory to save file into
local dir
if G_reader_settings:isTrue("wikipedia_save_in_book_dir") and not self:isDocless() then
local last_file = G_reader_settings:readSetting("lastfile")
dir = last_file and last_file:match("(.*)/")
end
dir = dir or G_reader_settings:readSetting("wikipedia_save_dir") or DictQuickLookup.getWikiSaveEpubDefaultDir()
if not util.pathExists(dir) then
lfs.mkdir(dir)
end
-- Just to be safe (none of the invalid chars, except ':' for uninteresting
-- Portal: or File: wikipedia pages, should be in lookupword)
local filename = self.lookupword .. "."..string.upper(lang)..".epub"
filename = util.getSafeFilename(filename, dir):gsub("_", " ")
local epub_path = dir .. "/" .. filename
UIManager:show(ConfirmBox:new{
text = T(_("Save as %1?"), BD.filename(filename)),
ok_callback = function()
UIManager:scheduleIn(0.1, function()
local Wikipedia = require("ui/wikipedia")
Wikipedia:createEpubWithUI(epub_path, self.lookupword, lang, function(success)
if success then
UIManager:show(ConfirmBox:new{
text = T(_("Article saved to:\n%1\n\nWould you like to read the downloaded article now?"), BD.filepath(epub_path)),
ok_callback = function()
-- close all dict/wiki windows, without scheduleIn(highlight.clear())
self:onHoldClose(true)
-- close current ReaderUI in 1 sec, and create a new one
UIManager:scheduleIn(1.0, function()
UIManager:broadcastEvent(Event:new("SetupShowReader"))
if self.ui then
-- close Highlight menu if any still shown
if self.ui.highlight and self.ui.highlight.highlight_dialog then
self.ui.highlight:onClose()
end
self.ui:onClose()
end
local ReaderUI = require("apps/reader/readerui")
ReaderUI:showReader(epub_path)
end)
end,
})
else
UIManager:show(InfoMessage:new{
text = _("Saving Wikipedia article failed or interrupted."),
})
end
end)
end)
end
})
end,
},
{
id = "close",
text = _("Close"),
callback = function()
self:onClose()
end,
hold_callback = function()
self:onHoldClose()
end,
},
},
}
else
local prev_dict_text = "◁◁"
local next_dict_text = "▷▷"
if BD.mirroredUILayout() then
prev_dict_text, next_dict_text = next_dict_text, prev_dict_text
end
buttons = {
{
{
id = "prev_dict",
text = prev_dict_text,
vsync = true,
enabled = self:isPrevDictAvaiable(),
callback = function()
self:onChangeToPrevDict()
end,
hold_callback = function()
self:changeToFirstDict()
end,
},
{
id = "highlight",
text = _("Highlight"),
enabled = not self:isDocless() and self.highlight ~= nil,
callback = function()
self.save_highlight = not self.save_highlight
-- Just update, repaint and refresh *this* button
local this = self.button_table:getButtonById("highlight")
this:setText(self.save_highlight and _("Unhighlight") or _("Highlight"), this.width)
this:refresh()
end,
},
{
id = "next_dict",
text = next_dict_text,
vsync = true,
enabled = self:isNextDictAvaiable(),
callback = function()
self:onChangeToNextDict()
end,
hold_callback = function()
self:changeToLastDict()
end,
},
},
{
{
id = "wikipedia",
-- if dictionary result, do the same search on wikipedia
-- if already wiki, get the full page for the current result
text_func = function()
if self.is_wiki then
-- @translators Full Wikipedia article.
return C_("Button", "Wikipedia full")
else
return _("Wikipedia")
end
end,
callback = function()
UIManager:scheduleIn(0.1, function()
self:lookupWikipedia(self.is_wiki) -- will get_fullpage if is_wiki
end)
end,
},
-- Rotate thru available wikipedia languages, or Search in book if dict window
{
id = "search",
-- if more than one language, enable it and display "current lang > next lang"
-- otherwise, just display current lang
text = self.is_wiki
and ( #self.wiki_languages > 1 and BD.wrap(self.wiki_languages[1]).." > "..BD.wrap(self.wiki_languages[2])
or self.wiki_languages[1] ) -- (this " > " will be auro-mirrored by bidi)
or _("Search"),
enabled = self:canSearch(),
callback = function()
if self.is_wiki then
-- We're rotating: forward this flag from the one we're closing so
-- that ReaderWikipedia can give it to the one we'll be showing
DictQuickLookup.rotated_update_wiki_languages_on_close = self.update_wiki_languages_on_close
self:lookupWikipedia(false, nil, nil, self.wiki_languages[2])
self:onClose(true)
else
self.ui:handleEvent(Event:new("HighlightSearch"))
self:onClose(true) -- don't unhighlight (or we might erase a search hit)
end
end,
},
{
id = "close",
text = _("Close"),
callback = function()
self:onClose()
end,
hold_callback = function()
self:onHoldClose()
end,
},
},
}
if not self.is_wiki and self.selected_link ~= nil then
-- If highlighting some word part of a link (which should be rare),
-- add a new first row with a single button to follow this link.
table.insert(buttons, 1, {
{
id = "link",
text = _("Follow Link"),
callback = function()
local link = self.selected_link.link or self.selected_link
self.ui.link:onGotoLink(link)
self:onClose()
end,
},
})
end
end
if self.ui then
self.ui:handleEvent(Event:new("DictButtonsReady", self, buttons))
end
-- Bottom buttons get a bit less padding so their line separators
-- reach out from the content to the borders a bit more
local buttons_padding = Size.padding.default
local buttons_width = inner_width - 2*buttons_padding
self.button_table = ButtonTable:new{
width = buttons_width,
buttons = buttons,
zero_sep = true,
show_parent = self,
}
-- Margin from screen edges
local margin_top = Size.margin.default
local margin_bottom = Size.margin.default
if self.ui and self.ui.view and self.ui.view.footer_visible then
-- We want to let the footer visible (as it can show time, battery level
-- and wifi state, which might be useful when spending time reading
-- definitions or wikipedia articles)
margin_bottom = margin_bottom + self.ui.view.footer:getHeight()
end
local avail_height = Screen:getHeight() - margin_top - margin_bottom
-- Region in which the window will be aligned center/top/bottom:
self.region = Geom:new{
x = 0,
y = margin_top,
w = Screen:getWidth(),
h = avail_height,
}
self.align = "center"
local others_height = frame_bordersize * 2 -- DictQuickLookup border
+ self.dict_title:getHeight()
+ top_to_word_span:getSize().h
+ lookup_word:getSize().h
+ word_to_definition_span:getSize().h
+ definition_to_bottom_span:getSize().h
+ self.button_table:getSize().h
-- To properly adjust the definition to the height of text, we need
-- the line height a ScrollTextWidget will use for the current font
-- size (we'll then use this perfect height for ScrollTextWidget,
-- but also for ScrollHtmlWidget, where it doesn't matter).
if not self.definition_line_height then
local test_widget = ScrollTextWidget:new{
text = "z",
face = self.content_face,
width = self.content_width,
height = self.definition_height,
for_measurement_only = true, -- flag it as a dummy, so it won't trigger any bogus repaint/refresh...
}
self.definition_line_height = test_widget:getLineHeight()
test_widget:free(true)
end
if is_large_window then
-- Available height for definition + components
self.height = avail_height
self.definition_height = self.height - others_height
local nb_lines = math.floor(self.definition_height / self.definition_line_height)
self.definition_height = nb_lines * self.definition_line_height
local pad = self.height - others_height - self.definition_height
-- put that unused height on the above span
word_to_definition_span.width = word_to_definition_span.width + pad
else
-- Definition height was previously computed as 0.5*0.7*screen_height, so keep
-- it that way. Components will add themselves to that.
self.definition_height = math.floor(avail_height * 0.5 * 0.7)
-- But we want it to fit to the lines that will show, to avoid
-- any extra padding
local nb_lines = Math.round(self.definition_height / self.definition_line_height)
self.definition_height = nb_lines * self.definition_line_height
self.height = self.definition_height + others_height
if self.word_boxes and #self.word_boxes > 0 then
-- Try to not hide the highlighted word. We don't want to always
-- get near it if we can stay center, so that more context around
-- the word is still visible with the dict result.
-- But if we were to be drawn over the word, move a bit if possible.
-- In most cases boxes will be a single sbox, but handle multiple
-- sboxes by taking the top and bottom y values.
local word_box_top
local word_box_bottom
for _, box in ipairs(self.word_boxes) do
local box_top = box.y
local box_bottom = box.y + box.h
if not word_box_top or word_box_top > box_top then
word_box_top = box_top
end
if not word_box_bottom or word_box_bottom < box_bottom then
word_box_bottom = box_bottom
end
end
-- Don't stick to the box, ensure a minimal padding between box and
-- window.
word_box_top = word_box_top - Size.padding.small
word_box_bottom = word_box_bottom + Size.padding.small
local half_visible_height = (avail_height - self.height) / 2
if word_box_bottom > half_visible_height and word_box_top <= half_visible_height + self.height then
-- word would be covered by our centered window
if word_box_bottom <= avail_height - self.height then
-- Window can be moved just below word
self.region.y = word_box_bottom
self.region.h = self.region.h - word_box_bottom
self.align = "top"
elseif word_box_top > self.height then
-- Window can be moved just above word
self.region.y = 0
self.region.h = word_box_top
self.align = "bottom"
end
end
end
end
-- Instantiate self.text_widget
self:_instantiateScrollWidget()
-- word definition
self.definition_widget = FrameContainer:new{
padding = 0,
padding_left = content_padding_h,
padding_right = content_padding_h,
margin = 0,
bordersize = 0,
self.text_widget,
}
self.dict_frame = FrameContainer:new{
radius = Size.radius.window,
bordersize = frame_bordersize,
padding = 0,
margin = 0,
background = Blitbuffer.COLOR_WHITE,
VerticalGroup:new{
align = "left",
self.dict_title,
top_to_word_span,
-- word
CenterContainer:new{
dimen = Geom:new{
w = inner_width,
h = lookup_word:getSize().h,
},
lookup_word,
},
word_to_definition_span,
-- definition
CenterContainer:new{
dimen = Geom:new{
w = inner_width,
h = self.definition_widget:getSize().h,
},
self.definition_widget,
},
definition_to_bottom_span,
-- buttons
CenterContainer:new{
dimen = Geom:new{
w = inner_width,
h = self.button_table:getSize().h,
},
self.button_table,
}
}
}
self.movable = MovableContainer:new{
-- We'll handle these events ourselves, and call appropriate
-- MovableContainer's methods when we didn't process the event
ignore_events = {
-- These have effects over the definition widget, and may
-- or may not be processed by it
"swipe", "hold", "hold_release", "hold_pan",
-- These do not have direct effect over the definition widget,
-- but may happen while selecting text: we need to check
-- a few things before forwarding them
"touch", "pan", "pan_release",
},
self.dict_frame,
}
self[1] = WidgetContainer:new{
align = self.align,
dimen = self.region,
self.movable,
}
-- NT: add dict_title.left_button and lookup_edit_button to FocusManager.
-- It is better to add these two buttons into self.movable, but it is not a FocusManager.
-- Only self.button_table is a FocusManager, so the workaround is inserting these two buttons into self.button_table.layout.
if Device:hasDPad() then
table.insert(self.button_table.layout, 1, { self.dict_title.left_button })
table.insert(self.button_table.layout, 2, { lookup_edit_button })
-- Refocus on the updated layout
self.button_table:refocusWidget()
end
-- We're a new window
table.insert(DictQuickLookup.window_list, self)
end
-- Whether currently DictQuickLookup is working without a document.
function DictQuickLookup:isDocless()
return self.ui == nil or self.ui.highlight == nil
end
function DictQuickLookup:getHtmlDictionaryCss()
-- Using Noto Sans because Nimbus doesn't contain the IPA symbols.
-- 'line-height: 1.3' to have it similar to textboxwidget,
-- and follow user's choice on justification
local css_justify = G_reader_settings:nilOrTrue("dict_justify") and "text-align: justify;" or ""
local css = [[
@page {
margin: 0;
font-family: 'Noto Sans';
}
body {
margin: 0;
line-height: 1.3;
]]..css_justify..[[
}
blockquote, dd {
margin: 0 1em;
}
ol, ul, menu {
margin: 0; padding: 0 1.7em;
}
]]
-- For reference, MuPDF declarations with absolute units:
-- "blockquote{margin:1em 40px}"
-- "dd{margin:0 0 0 40px}"
-- "ol,ul,menu {margin:1em 0;padding:0 0 0 30pt}"
-- "hr{border-width:1px;}"
-- "td,th{padding:1px}"
--
-- MuPDF doesn't currently scale CSS pixels, so we have to use a font-size based measurement.
-- Unfortunately MuPDF doesn't properly support `rem` either, which it bases on a hard-coded
-- value of `16px`, so we have to go with `em` (or `%`).
--
-- These `em`-based margins can vary slightly, but it's the best available compromise.
--
-- We also keep left and right margin the same so it'll display as expected in RTL.
-- Because MuPDF doesn't currently support `margin-start`, this results in a slightly
-- unconventional but hopefully barely noticeable right margin for <dd>.
--
-- For <ul> and <ol>, bullets and numbers are displayed in the margin/padding, so
-- we need a bit more for them to not get truncated (1.7em allows for 2 digits list
-- item numbers). Unfortunately, because we want this also for RTL, this space is
-- wasted on the other side...
if self.css then
return css .. self.css
end
return css
end
-- Used in init & update to instantiate the Scroll*Widget that self.text_widget points to
function DictQuickLookup:_instantiateScrollWidget()
if self.is_html then
self.shw_widget = ScrollHtmlWidget:new{
html_body = self.definition,
css = self:getHtmlDictionaryCss(),
default_font_size = Screen:scaleBySize(self.dict_font_size),
width = self.content_width,
height = self.definition_height,
dialog = self,
html_link_tapped_callback = function(link)
self.html_dictionary_link_tapped_callback(self.dictionary, link)
end,
}
self.text_widget = self.shw_widget
else
self.stw_widget = ScrollTextWidget:new{
text = self.definition,
face = self.content_face,
width = self.content_width,
height = self.definition_height,
dialog = self,
justified = G_reader_settings:nilOrTrue("dict_justify"), -- allow for disabling justification
lang = self.lang and self.lang:lower() or self.lang_out,
para_direction_rtl = self.rtl_lang, -- only available on wikipedia results
auto_para_direction = not self.is_wiki, -- only for dict results (we don't know their lang)
image_alt_face = self.image_alt_face,
images = self.images,
}
self.text_widget = self.stw_widget
end
end
function DictQuickLookup:update()
-- self[1] is a WidgetContainer, its free method will call free on each of its child widget with a free method.
-- Here, that's the definitions' TextBoxWidget & HtmlBoxWidget,
-- to release their bb, MuPDF instance, and scheduled image_update_action.
self[1]:free()
-- Update TextWidgets
self.dict_title:setTitle(self.displaydictname)
if self.displaynb then
self.displaynb_text:setText(self.displaynb)
end
self.lookup_word_text:setText(self.displayword)
self.lookup_word_text.lang = self.lang_in
-- Update Buttons
if not self.is_wiki_fullpage then
local prev_dict_btn = self.button_table:getButtonById("prev_dict")
if prev_dict_btn then
prev_dict_btn:enableDisable(self:isPrevDictAvaiable())
end
local next_dict_btn = self.button_table:getButtonById("next_dict")
if next_dict_btn then
next_dict_btn:enableDisable(self:isNextDictAvaiable())
end
end
-- Update main text widgets
if self.is_html and self.shw_widget then
-- Re-use our ScrollHtmlWidget (self.shw_widget)
-- NOTE: The recursive free via our WidgetContainer (self[1]) above already released the previous MµPDF document instance ;)
self.text_widget.htmlbox_widget:setContent(self.definition, self:getHtmlDictionaryCss(), Screen:scaleBySize(self.dict_font_size))
-- Scroll back to top
self.text_widget:resetScroll()
elseif not self.is_html and self.stw_widget then
-- Re-use our ScrollTextWidget (self.stw_widget)
-- Update properties that may change across results (as done in DictQuickLookup:_instantiateScrollWidget())
self.text_widget.text_widget.text = self.definition
self.text_widget.text_widget.charlist = nil -- (required when use_xtext=false for proper re-init)
self.text_widget.text_widget.lang = self.lang and self.lang:lower() or self.lang_out
self.text_widget.text_widget.para_direction_rtl = self.rtl_lang
self.text_widget.text_widget.images = self.images
-- Scroll back to the top, àla TextBoxWidget:scrollToTop
self.text_widget.text_widget.virtual_line_num = 1
-- NOTE: The recursive free via our WidgetContainer (self[1]) above already free'd us ;)
self.text_widget.text_widget:init()
-- Reset the scrollbar's state
self.text_widget:resetScroll()
else
-- We jumped from HTML to Text (or vice-versa), we need a new widget instance
self:_instantiateScrollWidget()
-- Update *all* the references to self.text_widget
self.definition_widget[1] = self.text_widget
-- Destroy the previous "opposite type" widget
if self.is_html then
self.stw_widget = nil
else
self.shw_widget = nil
end
end
-- If we're translucent, reset alpha to make the new definition actually readable.
if self.movable.alpha then
self.movable.alpha = nil
end
UIManager:setDirty(self, function()
return "partial", self.dict_frame.dimen
end)
end
function DictQuickLookup:getInitialVisibleArea()
-- Some positionning happens only at paintTo() time, but we want
-- to know this before. So, do a bit like WidgetContainer does
-- (without any MovableContainer offset)
local dict_size = self.dict_frame:getSize()
local area = Geom:new{
w = dict_size.w,
h = dict_size.h,
x = self.region.x + math.floor((self.region.w - dict_size.w)/2)
}
if self.align == "top" then
area.y = self.region.y
elseif self.align == "bottom" then
area.y = self.region.y + self.region.h - dict_size.h
elseif self.align == "center" then
area.x = self.region.y + math.floor((self.region.h - dict_size.h)/2)
end
return area
end
function DictQuickLookup:onCloseWidget()
-- Our TextBoxWidget/HtmlBoxWidget/TextWidget/ImageWidget are proper child widgets,
-- so this event will propagate to 'em, and they'll free their resources.
-- What's left is stuff that isn't directly in our widget tree...
if self.images_cleanup_needed then
logger.dbg("freeing lookup results images blitbuffers")
for _, r in ipairs(self.results) do
if r.images and #r.images > 0 then
for _, im in ipairs(r.images) do
if im.bb then im.bb:free() end
if im.hi_bb then im.hi_bb:free() end
end
end
end
end
-- Drop our ref from the static class member
for i = #DictQuickLookup.window_list, 1, -1 do
local window = DictQuickLookup.window_list[i]
-- We should only find a single match, but, better safe than sorry...
if window == self then
table.remove(DictQuickLookup.window_list, i)
end
end
-- NOTE: Drop region to make it a full-screen flash
UIManager:setDirty(nil, function()
return "flashui", nil
end)
end
function DictQuickLookup:onShow()
UIManager:setDirty(self, function()
return "flashui", self.dict_frame.dimen
end)
return true
end
function DictQuickLookup:isPrevDictAvaiable()
return self.dict_index > 1
end
function DictQuickLookup:isNextDictAvaiable()
return self.dict_index < #self.results
end
function DictQuickLookup:onChangeToPrevDict()
if self:isPrevDictAvaiable() then
self:changeDictionary(self.dict_index - 1)
elseif #self.results > 1 then -- restart at end if first reached
self:changeDictionary(#self.results)
end
end
function DictQuickLookup:onChangeToNextDict()
if self:isNextDictAvaiable() then
self:changeDictionary(self.dict_index + 1)
elseif #self.results > 1 then -- restart at first if end reached
self:changeDictionary(1)
end
end
function DictQuickLookup:changeToFirstDict()
if self:isPrevDictAvaiable() then
self:changeDictionary(1)
end
end
function DictQuickLookup:changeToLastDict()
if self:isNextDictAvaiable() then
self:changeDictionary(#self.results)
end
end
function DictQuickLookup:changeDictionary(index, skip_update)
if not self.results[index] then return end
self.dict_index = index
self.dictionary = self.results[index].dict
self.lookupword = self.results[index].word
self.definition = self.results[index].definition
self.is_wiki_fullpage = self.results[index].is_wiki_fullpage
self.is_html = self.results[index].is_html
self.css = self.results[index].css
self.lang = self.results[index].lang
local ifo_lang = self.results[index].ifo_lang
self.lang_in = ifo_lang and ifo_lang.lang_in or nil
self.lang_out = ifo_lang and ifo_lang.lang_out or nil
self.rtl_lang = self.results[index].rtl_lang
self.images = self.results[index].images
if self.images and #self.images > 0 then
-- We'll be giving some images to textboxwidget that will
-- load and display them. We'll need to free these blitbuffers
-- when we're done.
self.images_cleanup_needed = true
end
if self.is_wiki_fullpage then
self.displayword = self.lookupword
self.displaynb = nil
else
self.displayword = self.lookupword
-- show "dict_index / nbresults" so we know where we're at and what's yet to see
self.displaynb = T("%1 / %2", index, #self.results)
-- add queried word to 1st result's definition, so we can see
-- what was the selected text and if we selected wrong
if index == 1 then
if self.is_html then
self.definition = self.definition.."<br/>_______<br/>"
else
self.definition = self.definition.."\n_______\n"
end
self.definition = self.definition..T(_("(query : %1)"), self.word)
end
end
self.displaydictname = self.dictionary
if self.preferred_dictionaries then
-- If current result is from a preferred dictionary, prepend dict name
-- (shown in the window title) with its preference number
for idx, name in ipairs(self.preferred_dictionaries) do
if self.dictionary == name then
-- Use number in circle symbol (U+2460...2473)
local symbol = util.unicodeCodepointToUtf8(0x245F + (idx < 20 and idx or 20))
self.displaydictname = symbol .. " " .. self.displaydictname
break
end
end
end
-- Don't call update when called from init
if not skip_update then
self:update()
end
end
--[[ No longer used
function DictQuickLookup:changeToDefaultDict()
if self.dictionary then
-- dictionaries that have definition of the first word(accurate word)
-- excluding Fuzzy queries.
local n_accurate_dicts = nil
local default_word = self.results[1].word
for i=1, #self.results do
if self.results[i].word == default_word then
n_accurate_dicts = i
else
break
end
end
-- change to dictionary specified by self.dictionary
for i=1, n_accurate_dicts do
if self.results[i].dict == self.dictionary then
self:changeDictionary(i)
break
end
-- cannot find definition in default dictionary
if i == n_accurate_dicts then
self:changeDictionary(1)
end
end
else
self:changeDictionary(1)
end
end
]]--
function DictQuickLookup:onReadNextResult()
self:onChangeToNextDict()
return true
end
function DictQuickLookup:onReadPrevResult()
local prev_index = self.dict_index
self:onChangeToPrevDict()
if self.dict_index ~= prev_index then
-- Jump directly to bottom of previous dict definition
-- to keep "continuous reading with tap" consistent
self.definition_widget[1]:scrollToRatio(1) -- 1 = 100% = bottom
end
return true
end
function DictQuickLookup:onMenuKeyPress()
return self.dict_title.left_icon_tap_callback()
end
function DictQuickLookup:onTap(arg, ges_ev)
if ges_ev.pos:notIntersectWith(self.dict_frame.dimen) then
self:onClose()
return true
end
if ges_ev.pos:intersectWith(self.dict_title.dimen) and not self.is_wiki then
self.ui:handleEvent(Event:new("TogglePreferredDict", self.dictionary))
-- Re-display current result, with title bar updated
self:changeDictionary(self.dict_index)
return true
end
if ges_ev.pos:intersectWith(self.definition_widget.dimen) then
-- Allow for changing dict with tap (tap event will be first
-- processed for scrolling definition by ScrollTextWidget, which
-- will pop it up for us here when it can't scroll anymore).
-- This allow for continuous reading of results' definitions with tap.
if BD.flipIfMirroredUILayout(ges_ev.pos.x < Screen:getWidth()/2) then
self:onReadPrevResult()
else
self:onReadNextResult()
end
end
return true
end
function DictQuickLookup:onClose(no_clear)
for menu, _ in pairs(self.menu_opened) do
UIManager:close(menu)
end
self.menu_opened = {}
UIManager:close(self)
if self.update_wiki_languages_on_close then
-- except if we got no result for current language
if not self.results.no_result then
self.ui:handleEvent(Event:new("UpdateWikiLanguages", self.wiki_languages))
end
end
if self.save_highlight then
self.highlight:saveHighlight()
self.highlight:clear()
else
if self.highlight and not no_clear then
-- delay unhighlight of selection, so we can see where we stopped when
-- back from our journey into dictionary or wikipedia
local clear_id = self.highlight:getClearId()
UIManager:scheduleIn(0.5, function()
self.highlight:clear(clear_id)
end)
end
end
return true
end
function DictQuickLookup:onHoldClose(no_clear)
-- Pop the windows FILO
for i = #DictQuickLookup.window_list, 1, -1 do
local window = DictQuickLookup.window_list[i]
window:onClose(no_clear)
end
return true
end
function DictQuickLookup:onSwipe(arg, ges)
if ges.pos:intersectWith(self.definition_widget.dimen) then
-- if we want changeDict to still work with swipe outside window :
-- or not ges.pos:intersectWith(self.dict_frame.dimen) then
local direction = BD.flipDirectionIfMirroredUILayout(ges.direction)
if direction == "west" then
self:onChangeToNextDict()
elseif direction == "east" then
self:onChangeToPrevDict()
else
if self.refresh_callback then self.refresh_callback() end
-- update footer (time & battery)
self.ui:handleEvent(Event:new("UpdateFooter", true))
-- trigger a full-screen HQ flashing refresh
UIManager:setDirty(nil, "full")
-- a long diagonal swipe may also be used for taking a screenshot,
-- so let it propagate
return false
end
return true
end
-- Let our MovableContainer handle swipe outside of definition
return self.movable:onMovableSwipe(arg, ges)
end
function DictQuickLookup:onHoldStartText(_, ges)
-- Forward Hold events not processed by TextBoxWidget event handler
-- to our MovableContainer
return self.movable:onMovableHold(_, ges)
end
function DictQuickLookup:onHoldPanText(_, ges)
-- Forward Hold events not processed by TextBoxWidget event handler
-- to our MovableContainer
-- We only forward it if we did forward the Touch
if self.movable._touch_pre_pan_was_inside then
return self.movable:onMovableHoldPan(arg, ges)
end
end
function DictQuickLookup:onHoldReleaseText(_, ges)
-- Forward Hold events not processed by TextBoxWidget event handler
-- to our MovableContainer
return self.movable:onMovableHoldRelease(_, ges)
end
-- These 3 event processors are just used to forward these events
-- to our MovableContainer, under certain conditions, to avoid
-- unwanted moves of the window while we are selecting text in
-- the definition widget.
function DictQuickLookup:onForwardingTouch(arg, ges)
-- This Touch may be used as the Hold we don't get (for example,
-- when we start our Hold on the bottom buttons)
if not ges.pos:intersectWith(self.definition_widget.dimen) then
return self.movable:onMovableTouch(arg, ges)
else
-- Ensure this is unset, so we can use it to not forward HoldPan
self.movable._touch_pre_pan_was_inside = false
end
end
function DictQuickLookup:onForwardingPan(arg, ges)
-- We only forward it if we did forward the Touch or are currently moving
if self.movable._touch_pre_pan_was_inside or self.movable._moving then
return self.movable:onMovablePan(arg, ges)
end
end
function DictQuickLookup:onForwardingPanRelease(arg, ges)
-- Allow scrolling with the mousewheel
if ges.from_mousewheel and ges.relative and ges.relative.y then
if ges.relative.y < 0 then
if not self.definition_widget[1]:onScrollDown() then
self:onReadNextResult()
end
elseif ges.relative.y > 0 then
if not self.definition_widget[1]:onScrollUp() then
self:onReadPrevResult()
end
end
return true
end
-- We can forward onMovablePanRelease() does enough checks
return self.movable:onMovablePanRelease(arg, ges)
end
function DictQuickLookup:lookupInputWord(hint)
self.input_dialog = InputDialog:new{
title = _("Enter a word or phrase to look up"),
input = hint,
input_hint = hint,
buttons = {
{
{
text = _("Translate"),
callback = function()
local text = self.input_dialog:getInputText()
if text ~= "" then
UIManager:close(self.input_dialog)
Translator:showTranslation(text, true)
end
end,
},
{
text = _("Search Wikipedia"),
is_enter_default = self.is_wiki,
callback = function()
local text = self.input_dialog:getInputText()
if text ~= "" then
UIManager:close(self.input_dialog)
self.is_wiki = true
self:lookupWikipedia(false, text, true)
end
end,
},
},
{
{
text = _("Cancel"),
id = "close",
callback = function()
UIManager:close(self.input_dialog)
end,
},
{
text = _("Search dictionary"),
is_enter_default = not self.is_wiki,
callback = function()
local text = self.input_dialog:getInputText()
if text ~= "" then
UIManager:close(self.input_dialog)
self.is_wiki = false
self.ui:handleEvent(Event:new("LookupWord", text, true))
end
end,
},
},
},
}
UIManager:show(self.input_dialog)
self.input_dialog:onShowKeyboard()
end
function DictQuickLookup:lookupWikipedia(get_fullpage, word, is_sane, lang)
if not lang then
-- Use the lang of the current or nearest is_wiki DictQuickLookup.
-- Otherwise, first lang in ReaderWikipedia.wiki_languages will be used.
for i = #DictQuickLookup.window_list, 1, -1 do
local window = DictQuickLookup.window_list[i]
if window.is_wiki and window.lang then
lang = window.lang
break
end
end
end
if not word then
if get_fullpage then
-- we use the word of the displayed result's definition, which
-- is the exact title of the full wikipedia page
word = self.lookupword
is_sane = true
else
-- we use the original word that was querried
word = self.word
is_sane = false
end
end
-- Keep providing self.word_boxes so new windows keep being positionned to not hide it
self.ui:handleEvent(Event:new("LookupWikipedia", word, is_sane, self.word_boxes, get_fullpage, lang))
end
function DictQuickLookup:onShowResultsMenu()
-- Show one row: "| word | dict |" for each result
local width = math.floor(self.width * 0.75)
local right_width = math.floor(width * 0.5)
local font_size = 18
local button_dialog
local buttons = {}
for idx, result in ipairs(self.results) do
-- Show in bold the currently displayed result
local bold = idx == self.dict_index
local row = {
{
text = result.word,
lang = result.ifo_lang and result.ifo_lang.lang_in or nil,
font_size = font_size,
font_bold = bold,
align = "left",
callback = function()
self.menu_scrolled_offsets["main"] = button_dialog:getScrolledOffset()
self.menu_opened[button_dialog] = nil
UIManager:close(button_dialog)
self:changeDictionary(idx)
end,
hold_callback = function()
-- Allow doing another lookup with this result word
self.ui:handleEvent(Event:new("LookupWord", result.word))
end,
},
{
text = result.dict,
lang = result.ifo_lang and result.ifo_lang.lang_out or nil,
font_size = font_size,
font_bold = bold,
width = right_width,
callback = function()
self.menu_scrolled_offsets["main"] = button_dialog:getScrolledOffset()
self.menu_opened[button_dialog] = nil
UIManager:close(button_dialog)
self:changeDictionary(idx)
end,
},
}
table.insert(buttons, row)
end
button_dialog = ButtonDialog:new{
width = width,
-- We don't provide shrink_unneeded_width=true as it's ugly with small words
buttons = buttons,
anchor = function()
return self.dict_title.left_button.image.dimen, true -- pop down
end,
tap_close_callback = function()
self.menu_scrolled_offsets["main"] = button_dialog:getScrolledOffset()
self.menu_opened[button_dialog] = nil
end
}
button_dialog:setScrolledOffset(self.menu_scrolled_offsets["main"])
self.menu_opened[button_dialog] = true
UIManager:show(button_dialog)
return true
end
function DictQuickLookup:showResultsAltMenu()
-- Alternative listing with long-press:
-- Show one row: "| dict | word or N results |" for each dictionary returning results
local dicts = {}
local dict_results = {}
for idx, result in ipairs(self.results) do
local dict = result.dict
if not dict_results[dict] then
dict_results[dict] = { idx }
table.insert(dicts, dict)
else
table.insert(dict_results[dict], idx)
end
end
local max_width = math.floor(self.width * 0.75)
local right_width = math.floor(max_width * 0.25)
local font_size = 18
local button_dialog
local buttons = {}
for dictnum, dict in ipairs(dicts) do
local results = dict_results[dict]
local first_result = self.results[results[1]]
-- Show in bold only the currently displayed result's dict
local bold = util.arrayContains(results, self.dict_index)
local row = {{
text = dict,
lang = first_result.ifo_lang and first_result.ifo_lang.lang_out or nil,
font_size = font_size,
font_bold = bold,
align = "left",
callback = function()
self.menu_scrolled_offsets["alt"] = button_dialog:getScrolledOffset()
self.menu_opened[button_dialog] = nil
UIManager:close(button_dialog)
self:changeDictionary(results[1])
end,
}}
-- Right button
local button_id = "button"..dictnum
local text, lang, avoid_text_truncation, is_single_result, hold_callback
if #results == 1 then
-- Show the headword, possibly truncated (otherwise, long words
-- would get displayed in a really small font size).
-- If truncated, we'll show it full in a popup
text = first_result.word
lang = first_result.ifo_lang and first_result.ifo_lang.lang_in or nil
avoid_text_truncation = false
is_single_result = true
hold_callback = function()
-- Allow doing another lookup with this result word
self.ui:handleEvent(Event:new("LookupWord", first_result.word))
end
else
text = T(_("%1 results"), #results)
end
local callback = function()
local source_button = button_dialog:getButtonById(button_id)
if is_single_result and not source_button.label_widget:isTruncated() then
-- Not truncated: jump directly to the result
self.menu_scrolled_offsets["alt"] = button_dialog:getScrolledOffset()
self.menu_opened[button_dialog] = nil
UIManager:close(button_dialog)
self:changeDictionary(results[1])
return
end
local button_dialog2
local buttons2 = {}
local lang2 = first_result.ifo_lang and first_result.ifo_lang.lang_in or nil -- same for all results
for res=1, #results do
table.insert(buttons2, {{
text = self.results[results[res]].word,
lang = lang2,
font_size = font_size,
font_bold = results[res] == self.dict_index,
callback = function()
self.menu_scrolled_offsets["alt_sub"..dictnum] = button_dialog2:getScrolledOffset()
self.menu_opened[button_dialog2] = nil
UIManager:close(button_dialog2)
self.menu_scrolled_offsets["alt"] = button_dialog:getScrolledOffset()
self.menu_opened[button_dialog] = nil
UIManager:close(button_dialog)
self:changeDictionary(results[res])
end,
hold_callback = function()
-- Allow doing another lookup with this result word
self.ui:handleEvent(Event:new("LookupWord", self.results[results[res]].word))
end,
}})
end
button_dialog2 = ButtonDialog:new{
width = right_width*2, -- larger, to have room for long words
buttons = buttons2,
anchor = function()
return source_button.dimen, true -- pop down
end,
tap_close_callback = function()
self.menu_scrolled_offsets["alt_sub"..dictnum] = button_dialog2:getScrolledOffset()
self.menu_opened[button_dialog2] = nil
end
}
button_dialog2:setScrolledOffset(self.menu_scrolled_offsets["alt_sub"..dictnum])
self.menu_opened[button_dialog2] = true
UIManager:show(button_dialog2)
end
table.insert(row, {
text = text,
lang = lang,
avoid_text_truncation = avoid_text_truncation,
font_size = font_size,
font_bold = bold,
width = right_width,
callback = callback,
hold_callback = hold_callback,
id = button_id,
})
table.insert(buttons, row)
end
button_dialog = ButtonDialog:new{
width = max_width,
shrink_unneeded_width = true,
buttons = buttons,
anchor = function()
return self.dict_title.left_button.image.dimen, true -- pop down
end,
tap_close_callback = function()
self.menu_scrolled_offsets["alt"] = button_dialog:getScrolledOffset()
self.menu_opened[button_dialog] = nil
end
}
button_dialog:setScrolledOffset(self.menu_scrolled_offsets["alt"])
self.menu_opened[button_dialog] = true
UIManager:show(button_dialog)
end
function DictQuickLookup:showWikiResultsMenu()
-- Show one row with each result's article title
local max_width = math.floor(self.width * 0.75)
local font_size = 18
local button_dialog
local buttons = {}
for idx, result in ipairs(self.results) do
local bold = idx == self.dict_index
local row = {{
text = result.word,
lang = result.lang,
font_size = font_size,
font_bold = bold,
align = "left",
callback = function()
self.menu_scrolled_offsets["wiki"] = button_dialog:getScrolledOffset()
self.menu_opened[button_dialog] = nil
UIManager:close(button_dialog)
self:changeDictionary(idx)
end,
hold_callback = function()
-- Allow doing another lookup with this result title
self:lookupWikipedia(false, result.word)
end,
}}
table.insert(buttons, row)
end
button_dialog = ButtonDialog:new{
width = max_width,
shrink_unneeded_width = true,
buttons = buttons,
-- We requested 30 results, so we will probably be scrolling.
-- If we do, ensure we use these values (they will all make full pages
-- if we get 30 results), depending on what the screen height allows.
rows_per_page = { 15, 10, 6 },
anchor = function()
return self.dict_title.left_button.image.dimen, true -- pop down
end,
tap_close_callback = function()
self.menu_scrolled_offsets["wiki"] = button_dialog:getScrolledOffset()
self.menu_opened[button_dialog] = nil
end
}
button_dialog:setScrolledOffset(self.menu_scrolled_offsets["wiki"])
self.menu_opened[button_dialog] = true
UIManager:show(button_dialog)
end
return DictQuickLookup