Non-touch: highlight support (#8877)

readerhighlight: non-touch support
focusmanager: fix same type container share same selected field
radiobuttonwidget: non touch support
sortwidget: non touch support
openwithdialog: fix layout contains textinput, checkboxes added to layout twice

frontend/apps/reader/modules/readerview.lua

@@ -19,6 +19,7 @@ local UIManager = require("ui/uimanager")
 local dbg = require("dbg")
 local logger = require("logger")
 local optionsutil = require("ui/data/optionsutil")
+local Size = require("ui/size")
 local _ = require("gettext")
 local Screen = Device.screen
 local T = require("ffi/util").template
@@ -44,6 +45,7 @@ local ReaderView = OverlapGroup:extend{
         temp = {},
         saved_drawer = "lighten",
         saved = {},
+        indicator = nil, -- geom: non-touch highlight position indicator: {x = 50, y=50}
     },
     highlight_visible = true,
     -- PDF/DjVu continuous paging
@@ -199,6 +201,10 @@ function ReaderView:paintTo(bb, x, y)
     if self.highlight.temp then
         self:drawTempHighlight(bb, x, y)
     end
+    -- draw highlight position indicator for non-touch
+    if self.highlight.indicator then
+        self:drawHighlightIndicator(bb, x, y)
+    end
     -- paint dogear
     if self.dogear_visible then
         self.dogear:paintTo(bb, x, y)
@@ -454,6 +460,23 @@ function ReaderView:drawScrollView(bb, x, y)
         self.state.pos)
 end
 
+function ReaderView:drawHighlightIndicator(bb, x, y)
+    local rect = self.highlight.indicator
+    -- paint big cross line +
+    bb:paintRect(
+        rect.x,
+        rect.y + rect.h / 2 - Size.border.thick / 2,
+        rect.w,
+        Size.border.thick
+    )
+    bb:paintRect(
+        rect.x + rect.w / 2 - Size.border.thick / 2,
+        rect.y,
+        Size.border.thick,
+        rect.h
+    )
+end
+
 function ReaderView:drawTempHighlight(bb, x, y)
     for page, boxes in pairs(self.highlight.temp) do
         for i = 1, #boxes do