[fix] stop propagation of tap events when triggering reader menu (#2934)

* [fix] stop propagation of tap events
when triggering reader menu
And also get rid of unnecessary screen refreshes on Kindle Voyage.
The "progress" window for dict lookup is also eliminated as most of the time dict lookup is an instant process, and the "progress" window is preserved for wikipedia lookup as it may take longer time to show the result window.

* [up] add an option to disable dictionary fuzzy search

* [fix] tidy up require

* [fix] fix read settings

frontend/apps/reader/modules/readerdictionary.lua

@@ -1,8 +1,9 @@
+local ConfirmBox = require("ui/widget/confirmbox")
 local DataStorage = require("datastorage")
 local Device = require("device")
 local DictQuickLookup = require("ui/widget/dictquicklookup")
-local InputContainer = require("ui/widget/container/inputcontainer")
 local InfoMessage = require("ui/widget/infomessage")
+local InputContainer = require("ui/widget/container/inputcontainer")
 local JSON = require("json")
 local UIManager = require("ui/uimanager")
 local logger = require("logger")
@@ -35,6 +36,18 @@ function ReaderDictionary:addToMainMenu(menu_items)
             end,
         },
     }
+    menu_items.disable_fuzzy_search = {
+        text = _("Disable dictionary fuzzy search"),
+        checked_func = function()
+            return self.disable_fuzzy_search == true
+        end,
+        callback = function()
+            self.disable_fuzzy_search = not self.disable_fuzzy_search
+        end,
+        hold_callback = function()
+            self:makeDisableFuzzyDefault(self.disable_fuzzy_search)
+        end,
+    }
 end
 
 function ReaderDictionary:onLookupWord(word, box, highlight)
@@ -107,14 +120,14 @@ function ReaderDictionary:cleanSelection(text)
     return text
 end
 
-function ReaderDictionary:onLookupStarted(word)
+function ReaderDictionary:showLookupInfo(word)
     local text = T(self.lookup_msg, word)
     self.lookup_progress_msg = InfoMessage:new{text=text}
     UIManager:show(self.lookup_progress_msg)
     UIManager:forceRePaint()
 end
 
-function ReaderDictionary:onLookupDone()
+function ReaderDictionary:dismissLookupInfo()
     if self.lookup_progress_msg then
         UIManager:close(self.lookup_progress_msg)
         UIManager:forceRePaint()
@@ -130,7 +143,9 @@ function ReaderDictionary:stardictLookup(word, box)
     if word == "" then
         return
     end
-    self:onLookupStarted(word)
+    if not self.disable_fuzzy_search then
+        self:showLookupInfo(word)
+    end
     local final_results = {}
     local seen_results = {}
     -- Allow for two sdcv calls : one in the classic data/dict, and
@@ -153,19 +168,19 @@ function ReaderDictionary:stardictLookup(word, box)
                 definition = _([[No dictionaries installed. Please search for "Dictionary support" in the KOReader Wiki to get more information about installing new dictionaries.]]),
             }
         }
-        self:onLookupDone()
         self:showDict(word, final_results, box)
         return
     end
     for _, dict_dir in ipairs(dict_dirs) do
         local results_str = nil
+        local common_options = self.disable_fuzzy_search and "-njf" or "-nj"
         if Device:isAndroid() then
             local A = require("android")
             results_str = A.stdout("./sdcv", "--utf8-input", "--utf8-output",
-                    "-nj", word, "--data-dir", dict_dir)
+                    common_options, word, "--data-dir", dict_dir)
         else
             local std_out = io.popen(
-                ("./sdcv --utf8-input --utf8-output -nj %q --data-dir %q"):format(word, dict_dir),
+                ("./sdcv --utf8-input --utf8-output %q %q --data-dir %q"):format(common_options, word, dict_dir),
                 "r")
             if std_out then
                 results_str = std_out:read("*all")
@@ -198,11 +213,11 @@ function ReaderDictionary:stardictLookup(word, box)
             }
         }
     end
-    self:onLookupDone()
     self:showDict(word, tidyMarkup(final_results), box)
 end
 
 function ReaderDictionary:showDict(word, results, box)
+    self:dismissLookupInfo()
     if results and results[1] then
         logger.dbg("showing quick lookup window", word, results)
         self.dict_window = DictQuickLookup:new{
@@ -244,11 +259,30 @@ end
 
 function ReaderDictionary:onReadSettings(config)
     self.default_dictionary = config:readSetting("default_dictionary")
+    self.disable_fuzzy_search = config:readSetting("disable_fuzzy_search")
+    if self.disable_fuzzy_search == nil then
+        self.disable_fuzzy_search = G_reader_settings:isTrue("disable_fuzzy_search")
+    end
 end
 
 function ReaderDictionary:onSaveSettings()
     logger.dbg("save default dictionary", self.default_dictionary)
     self.ui.doc_settings:saveSetting("default_dictionary", self.default_dictionary)
+    self.ui.doc_settings:saveSetting("disable_fuzzy_search", self.disable_fuzzy_search)
+end
+
+function ReaderDictionary:makeDisableFuzzyDefault(disable_fuzzy_search)
+    logger.dbg("disable fuzzy search", self.disable_fuzzy_search)
+    UIManager:show(ConfirmBox:new{
+        text = T(
+            disable_fuzzy_search
+            and _("Disable fuzzy search by default?")
+            or _("Enable fuzzy search by default?")
+        ),
+        ok_callback = function()
+            G_reader_settings:saveSetting("disable_fuzzy_search", disable_fuzzy_search)
+        end,
+    })
 end
 
 return ReaderDictionary