Add more events on button (long_tap, repeated_tap, double_tap)

druid/base/button.lua

@@ -47,14 +47,67 @@ local function on_button_hover(self, hover_state)
 end
 
 
-local function on_button_release(self)
-	if not self.disabled then
-		if not self.stub and self.can_action then
-			self.can_action = false
+local function on_button_click(self)
 	if self.style.on_click then
 		self.style.on_click(self, self.anim_node)
 	end
+	self.click_in_row = 1
 	self.on_click:trigger(self:get_context(), self.params, self)
+end
+
+
+local function on_button_repeated_click(self)
+	if self.style.on_click then
+		self.style.on_click(self, self.anim_node)
+	end
+	self.click_in_row = self.click_in_row + 1
+	self.on_repeated_click:trigger(self:get_context(), self.params, self)
+end
+
+
+local function on_button_long_click(self)
+	if self.style.on_click then
+		self.style.on_click(self, self.anim_node)
+	end
+	self.click_in_row = 1
+	self.on_long_click:trigger(self:get_context(), self.params, self)
+end
+
+
+local function on_button_double_click(self)
+	if self.style.on_click then
+		self.style.on_click(self, self.anim_node)
+	end
+	self.click_in_row = self.click_in_row + 1
+	self.on_double_click:trigger(self:get_context(), self.params, self)
+end
+
+
+local function on_button_release(self)
+	if self.is_repeated_started then
+		return false
+	end
+
+	if not self.disabled then
+		if self.can_action then
+			self.can_action = false
+
+			local time = socket.gettime()
+			local is_long_click = (time - self.last_pressed_time) > self.style.LONGTAP_TIME
+			is_long_click = is_long_click and self.on_long_click:is_exist()
+
+			local is_double_click = (time - self.last_released_time) < self.style.DOUBLETAP_TIME
+			is_double_click = is_double_click and self.on_double_click:is_exist()
+
+			if is_long_click then
+				on_button_long_click(self)
+			elseif is_double_click then
+				on_button_double_click(self)
+			else
+				on_button_click(self)
+			end
+
+			self.last_released_time = time
 		end
 		return true
 	else
@@ -86,6 +139,10 @@ function M.init(self, node, callback, params, anim_node, event)
 	self.hover_anim = self.style.IS_HOVER
 	self.hover = self.druid:new_hover(node, on_button_hover)
 	self.click_zone = nil
+	self.is_repeated_started = false
+	self.last_pressed_time = 0
+	self.last_released_time = 0
+	self.click_in_row = 0
 
 	-- Event stubs
 	self.on_click = Event(callback)
@@ -118,10 +175,20 @@ function M.on_input(self, action_id, action)
 	if action.pressed then
 		-- Can interact if start touch on the button
 		self.can_action = true
-		self.repeated_counter = 0
+		self.is_repeated_started = false
+		self.last_pressed_time = socket.gettime()
 		return true
 	end
 
+	-- While hold button, repeat rate pick from input.repeat_interval
+	if action.repeated then
+		if not self.disabled and self.on_repeated_click:is_exist() and self.can_action then
+			self.is_repeated_started = true
+			on_button_repeated_click(self)
+			return true
+		end
+	end
+
 	if action.released then
 		return on_button_release(self)
 	end
@@ -166,7 +233,6 @@ function M.set_click_zone(self, zone)
 end
 
 
--- TODO: implement them all!
 --- Set key-code to trigger this button
 function M.set_key_trigger(self, key)
 

druid/event.lua

@@ -43,6 +43,21 @@ function M.unsubscribe(self, callback)
 end
 
 
+--- Return true, if event have at lease one handler
+-- @function event:is_exist
+-- @treturn boolean True if event have handlers
+function M.is_exist(self)
+	return #self._callbacks > 0
+end
+
+
+--- Clear the all event handlers
+-- @function event:clear
+function M.clear(self)
+	self._callbacks = {}
+end
+
+
 --- Trigger the event and call all subscribed callbacks
 -- @function event:trigger
 -- @param ... All event params

druid/styles/default/style.lua

@@ -12,6 +12,8 @@ M["button"] = {
 	BTN_SOUND_DISABLED = "click",
 	DISABLED_COLOR = vmath.vector4(0, 0, 0, 1),
 	ENABLED_COLOR = vmath.vector4(1),
+	LONGTAP_TIME = 0.4,
+	DOUBLETAP_TIME = 0.4,
 	IS_HOVER = true,
 
 	on_hover = function(self, node, state)

druid/styles/empty/style.lua

@@ -6,6 +6,8 @@ M["button"] = {
 	BTN_SOUND_DISABLED = "click",
 	DISABLED_COLOR = vmath.vector4(0, 0, 0, 1),
 	ENABLED_COLOR = vmath.vector4(1),
+	LONGTAP_TIME = 0.4,
+	DOUBLETAP_TIME = 0.4,
 	IS_HOVER = false,
 }
 

example/kenney/gui/main/main.gui_script

@@ -42,11 +42,14 @@ function init(self)
 	self.druid = druid.new(self)
 
 	init_top_panel(self)
-	self.page = 1
+	self.page = 3
 	main_page.setup_page(self)
 	text_page.setup_page(self)
 	button_page.setup_page(self)
 	scroll_page.setup_page(self)
+
+	-- Refresh state
+	on_control_button(self, 0)
 end
 
 

example/kenney/page/button.lua

@@ -3,15 +3,39 @@ local sprite_change_style = {}
 local M = {}
 
 
+local function usual_callback()
+	print("Usual callback")
+end
+
+local function long_tap_callback()
+	print("Long tap callback")
+end
+
+local function repeated_callback(self, params, button)
+	print("Repeated callback", button.click_in_row)
+end
+
+local function double_tap_callback(self, params, button)
+	print("Double tap callback", button.click_in_row)
+end
+
+
 local function setup_buttons(self)
-	self.druid:new_button("button_usual/button")
+	self.druid:new_button("button_usual/button", usual_callback)
 
-	local custom_style = self.druid:new_button("button_custom_style/button")
+	local custom_style = self.druid:new_button("button_custom_style/button", usual_callback)
 	custom_style:set_style(sprite_change_style)
-
 	-- HOVER_IMAGE and DEFAULT_IMAGE - from our custom style params
 	custom_style.HOVER_IMAGE = "button_yellow"
 	custom_style.DEFAULT_IMAGE = "button_blue"
+
+
+	self.druid:new_button("button_long_tap/button", usual_callback)
+		.on_long_click:subscribe(long_tap_callback)
+	self.druid:new_button("button_repeated_tap/button", usual_callback)
+		.on_repeated_click:subscribe(repeated_callback)
+	self.druid:new_button("button_double_tap/button", usual_callback)
+		.on_double_click:subscribe(double_tap_callback)
 end