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Vocabulary builder: support extracting context from pdfs (#9622)

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Move getSelectedWordContext(), now document specific,
from ReaderHighlight into each document module.
This commit is contained in:
weijiuqiao
2022-10-25 18:23:18 +08:00
committed by GitHub
parent 58613d66e7
commit edf7cc9a61
6 changed files with 82 additions and 20 deletions
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24
frontend/apps/reader/modules/readerhighlight.lua
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@@ -1282,26 +1282,12 @@ dbg:guard(ReaderHighlight, "lookup",
end)
function ReaderHighlight:getSelectedWordContext(nb_words)
if not self.ui.rolling or not self.selected_text then return nil end
local pos_start = self.selected_text.pos0
local pos_end = self.selected_text.pos1
for i=0, nb_words do
local ok, start = pcall(self.ui.document.getPrevVisibleWordStart, self.ui.document, pos_start)
if ok then pos_start = start
else break end
if not self.selected_text then return end
local ok, prev_context, next_context = pcall(self.ui.document.getSelectedWordContext, self.ui.document,
self.selected_text.text, nb_words, self.selected_text.pos0, self.selected_text.pos1)
if ok then
return prev_context, next_context
end
for i=0, nb_words do
local ok, ending = pcall(self.ui.document.getNextVisibleWordEnd, self.ui.document, pos_end)
if ok then pos_end = ending
else break end
end
local ok_prev, prev = pcall(self.ui.document.getTextFromXPointers, self.ui.document, pos_start, self.selected_text.pos0)
local ok_next, next = pcall(self.ui.document.getTextFromXPointers, self.ui.document, self.selected_text.pos1, pos_end)
return ok_prev and prev, ok_next and next
end
function ReaderHighlight:viewSelectionHTML(debug_view, no_css_files_buttons)