Added selected_now and deselected_now to input

Fixes #70

Author: britzl

README.md

@@ -524,6 +524,8 @@ The state table contains the following fields:
 * ```pressed_now``` (boolean) - true if the text field was pressed this call
 * ```long_pressed``` (boolean) - true if the registered press was a long press or not
 * ```released_now``` (boolean) - true if the text field was released this call
+* ```selected_now``` (boolean) - true if the text field was selected this call
+* ```deselected_now``` (boolean) - true if the text field was deselected this call
 * ```text``` (string) - The text in the field
 * ```marked_text``` (string) - The marked (non-committed) text
 * ```keyboard_type``` (number)

gooey/internal/input.lua

@@ -119,7 +119,9 @@ function M.input(node_id, keyboard_type, action_id, action, config, refresh_fn)
 	input.node = node
 	input.node_id = node_id
 	input.refresh_fn = refresh_fn
-	
+	input.deselected_now = false
+	input.selected_now = false
+
 	local use_marked_text = (config and config.use_marked_text == nil) and true or (config and config.use_marked_text)
 	input.text = input.text or "" .. (not use_marked_text and input.marked_text or "")
 	input.marked_text = input.marked_text or ""
@@ -136,12 +138,16 @@ function M.input(node_id, keyboard_type, action_id, action, config, refresh_fn)
 	if input.enabled then
 		input.deselected_now = false
 		if input.released_now then
+			if not input.selected then
+				input.selected_now = true
+			end
 			input.selected = true
 			input.marked_text = ""
 			gui.reset_keyboard()
 			gui.show_keyboard(keyboard_type, true)
 		elseif input.selected and action.pressed and action_id == actions.TOUCH and not input.over then
 			input.selected = false
+			input.deselected_now = true
 			input.text = input.text .. (not use_marked_text and input.marked_text or "")
 			input.marked_text = ""
 			gui.hide_keyboard()

test/test_input.lua

@@ -57,6 +57,18 @@ return function()
 			assert(input.text == "fooba")
 		end)
 
+		test("it should be possible to know if input was selected or deselected now", function()
+			local node = gui.new_text_node(vmath.vector3(10, 10, 0), "")
+			gui.set_id(node, "text")
+
+			gooey.input("text", gui.KEYBOARD_TYPE_PASSWORD, action_ids.TOUCH, actions.pressed(10, 10))
+			local input = gooey.input("text", gui.KEYBOARD_TYPE_PASSWORD, action_ids.TOUCH, actions.released(10, 10))
+			assert(input.selected_now)
+
+			local input = gooey.input("text", gui.KEYBOARD_TYPE_PASSWORD, action_ids.TOUCH, actions.pressed(1000, 1000))
+			assert(input.deselected_now)
+		end)
+		
 		test("it should mask entered text if it is a password", function()
 			local node = gui.new_text_node(vmath.vector3(10, 10, 0), "")
 			gui.set_id(node, "text")