android: share text (#5745)

frontend/apps/reader/modules/readerhighlight.lua

@@ -498,6 +498,17 @@ function ReaderHighlight:onShowHighlightMenu()
             },
         })
     end
+    if Device:canShareText() then
+            table.insert(highlight_buttons, {
+            {
+                text = _("Share text"),
+                callback = function()
+                    Device.doShareText(self.selected_text.text)
+                end,
+            },
+        })
+    end
+
     self.highlight_dialog = ButtonDialog:new{
         buttons = highlight_buttons,
         tap_close_callback = function() self:handleEvent(Event:new("Tap")) end,

frontend/device/android/device.lua

@@ -86,6 +86,8 @@ local Device = Generic:new{
     canImportFiles = function() return android.app.activity.sdkVersion >= 19 end,
     importFile = function(path) android.importFile(path) end,
     isValidPath = function(path) return android.isPathInsideSandbox(path) end,
+    canShareText = yes,
+    doShareText = function(text) android.sendText(text) end,
 
     canExternalDictLookup = yes,
     getExternalDictLookupList = getExternalDicts,

frontend/device/generic/device.lua

@@ -46,6 +46,7 @@ local Device = {
     hasColorScreen = no,
     hasBGRFrameBuffer = no,
     canImportFiles = no,
+    canShareText = no,
     canToggleGSensor = no,
     canToggleMassStorage = no,
     canUseWAL = yes, -- requires mmap'ed I/O on the target FS