Added TextBoxWidget.has_split_inside_word flag

Used by coverbrowser's Text covers to choose the best font size.

frontend/ui/widget/textboxwidget.lua

@@ -138,6 +138,9 @@ function TextBoxWidget:_splitCharWidthList()
                 -- either a very long english word ocuppying more than one line,
                 -- or the excessive char is itself splittable:
                 -- we let that excessive char for next line
+                if adjusted_idx == offset then -- let the fact a long word was splitted be known
+                    self.has_split_inside_word = true
+                end
                 cur_line_text = table.concat(self.charlist, "", offset, idx - 1)
                 cur_line_width = cur_line_width - self.char_width_list[idx].width
             elseif c == " " then

plugins/coverbrowser.koplugin/mosaicmenu.lua

@@ -194,10 +194,6 @@ function FakeCover:init()
         end
         inter_pad = math.floor(free_height / 2)
 
-        -- XXX We can benefit from adding to ui/widget/textboxwidget.lua at line 141
-        -- ("either a very long english word"):
-        --     if adjusted_idx == offset then self.has_split_inside_word = true end
-        -- The following as no effect till then
         local textboxes_ok = true
         if (authors_wg and authors_wg.has_split_inside_word) or (title_wg and title_wg.has_split_inside_word) then
             -- We may get a nicer cover at next lower font size