Replace existing transition

Fixes #82

CHANGELOG.md

@@ -1,60 +0,0 @@
-## Monarch 2.8.0 [britzl released 2018-06-10]
-NEW: Prevent show/hide operations while busy showing/hiding another screen  
-FIX: Make sure to properly finish active transitions when layout changes
-
-## Monarch 2.7.0 [britzl released 2018-06-04]
-NEW: Added monarch.top([offset]) and monarch.bottom([offset]) to get screen id of top and bottom screens (w. optional offset)  
-NEW: Transition messages now contain `next_screen` or `previous_screen`
-
-## Monarch 2.6.1 [britzl released 2018-06-04]
-FIX: Check if screen has already been preloaded before trying to preload it again (the callback will still be invoked).
-
-## Monarch 2.6.0 [britzl released 2018-06-03]
-NEW: monarch.preload() to load but not show a screen. Useful for content heavy screens that you wish to show without delay.
-
-## Monarch 2.5.0 [britzl released 2018-06-01]
-NEW: Transitions will send a `transition_done` message to the creator of the transition to notify that the transition has finished. The `message` will contain which transition that was finished.
-
-## Monarch 2.4.0 [britzl released 2018-05-26]
-NEW: Screen transitions are remembered so that they can be replayed when the screen layout changes.
-
-## Monarch 2.3.0 [britzl released 2018-03-24]
-CHANGE: The functions in monarch.lua that previously only accepted a hash as screen id now also accepts strings (and does the conversion internally)
-
-## Monarch 2.2.0 [britzl released 2018-03-19]
-NEW: Transitions now handle layout changes (via `layout_changed` message)  
-NEW: Transitions can now be notified of changes in window size using transition.window_resize(width, height)
-
-## Monarch 2.1 [britzl released 2017-12-27]
-NEW: Added Popup on Popup flag that allows a popup to be shown on top of another popup
-
-## Monarch 2.0 [britzl released 2017-12-08]
-BREAKING CHANGE: If you are using custom screen transitions (ie your own transition functions) you need to make a change to the function. The previous function signature was ```(node, to, easing, duration, delay, url)``` where ```url``` was the URL  to where the ```transition_done``` message was supposed to be posted. The new function signature for a transition function is: ```(node, to, easing, duration, delay, cb)``` where ```cb``` is a function that should be invoked when the transition is completed.  
-  
-FIX: Fixed issues related to screen transitions.  
-FIX: Code cleanup to reduce code duplication.  
-FIX: Improved documentation regarding transitions.
-
-## Monarch 1.4 [britzl released 2017-12-06]
-FIX: Several bugfixes for specific corner cases.
-
-## Monarch 1.3 [britzl released 2017-12-01]
-FIX: monarch.back(data, cb) set the data on the previous screen not the new current screen.  
-NEW: monarch.is_top(id)  
-NEW: monarch.get_stack()  
-NEW: monarch.in_stack(id)
-
-## Monarch 1.2 [britzl released 2017-11-28]
-NEW: Message id constants exposed from the Monarch module  
-NEW: Focus lost/gained contains id of next/previous screen
-
-## Monarch 1.1 [britzl released 2017-11-22]
-FIX: Bugfixes for transitions and state under certain circumstances  
-NEW: Added 'reload' option to show() command.
-
-## Monarch 1.0 [britzl released 2017-09-28]
-First public stable release
-
-## Monarch 0.9 [britzl released 2017-09-17]
-
-

README_API.md

@@ -33,6 +33,13 @@ Hide a screen that has been shown using the `no_stack` option. If used on a scre
 * `success` (boolean) - True if the process of hiding the screen was started successfully.
 
 
+## monarch.clear([callback])
+Clear the stack of screens completely. Any visible screen will be hidden by navigating back out from them. This operation will be added to the queue if Monarch is busy.
+
+**PARAMETERS**
+* `callback` (function) - Optional function to call when the stack has been cleared.
+
+
 ## monarch.back([data], [callback])
 Go back to a previous Monarch screen. This operation will be added to the queue if Monarch is busy.
 
@@ -142,6 +149,14 @@ Check if a Monarch screen is visible.
 * `exists` (boolean) - True if the screen is visible.
 
 
+## monarch.set_timestep_below_popup(screen_id, timestep)
+Set the timestep to apply for a screen when below a popup.
+
+**PARAMETERS**
+* `screen_id` (string|hash) - Id of the screen to change timestep setting for
+* `timestep` (number) - Timestep to apply
+
+
 ## monarch.add_listener([url])
 Add a URL that will be notified of navigation events.
 

example/advanced/about.collection

@@ -4,7 +4,7 @@ embedded_instances {
   id: "go"
   data: "components {\n"
   "  id: \"about\"\n"
-  "  component: \"/example/about.gui\"\n"
+  "  component: \"/example/advanced/about.gui\"\n"
   "  position {\n"
   "    x: 0.0\n"
   "    y: 0.0\n"

example/advanced/about.gui

@@ -1,4 +1,4 @@
-script: "/example/about.gui_script"
+script: "/example/advanced/about.gui_script"
 fonts {
   name: "example"
   font: "/assets/example.font"

example/advanced/advanced.collection

@@ -1,4 +1,4 @@
-name: "example"
+name: "advanced"
 scale_along_z: 0
 embedded_instances {
   id: "menu"
@@ -35,7 +35,7 @@ embedded_instances {
   "embedded_components {\n"
   "  id: \"collectionfactory\"\n"
   "  type: \"collectionfactory\"\n"
-  "  data: \"prototype: \\\"/example/menu.collection\\\"\\n"
+  "  data: \"prototype: \\\"/example/advanced/menu.collection\\\"\\n"
   "load_dynamically: true\\n"
   "\"\n"
   "  position {\n"
@@ -72,7 +72,7 @@ embedded_instances {
   id: "main"
   data: "components {\n"
   "  id: \"main\"\n"
-  "  component: \"/example/main.script\"\n"
+  "  component: \"/example/advanced/advanced.script\"\n"
   "  position {\n"
   "    x: 0.0\n"
   "    y: 0.0\n"
@@ -87,7 +87,7 @@ embedded_instances {
   "}\n"
   "components {\n"
   "  id: \"gui\"\n"
-  "  component: \"/example/debug.gui\"\n"
+  "  component: \"/example/advanced/debug.gui\"\n"
   "  position {\n"
   "    x: 0.0\n"
   "    y: 0.0\n"
@@ -148,7 +148,7 @@ embedded_instances {
   "embedded_components {\n"
   "  id: \"collectionproxy\"\n"
   "  type: \"collectionproxy\"\n"
-  "  data: \"collection: \\\"/example/pregame.collection\\\"\\n"
+  "  data: \"collection: \\\"/example/advanced/pregame.collection\\\"\\n"
   "exclude: false\\n"
   "\"\n"
   "  position {\n"
@@ -211,7 +211,7 @@ embedded_instances {
   "embedded_components {\n"
   "  id: \"collectionproxy\"\n"
   "  type: \"collectionproxy\"\n"
-  "  data: \"collection: \\\"/example/game.collection\\\"\\n"
+  "  data: \"collection: \\\"/example/advanced/game.collection\\\"\\n"
   "exclude: false\\n"
   "\"\n"
   "  position {\n"
@@ -294,7 +294,7 @@ embedded_instances {
   "embedded_components {\n"
   "  id: \"collectionproxy\"\n"
   "  type: \"collectionproxy\"\n"
-  "  data: \"collection: \\\"/example/about.collection\\\"\\n"
+  "  data: \"collection: \\\"/example/advanced/about.collection\\\"\\n"
   "exclude: false\\n"
   "\"\n"
   "  position {\n"
@@ -372,7 +372,7 @@ embedded_instances {
   "embedded_components {\n"
   "  id: \"collectionproxy\"\n"
   "  type: \"collectionproxy\"\n"
-  "  data: \"collection: \\\"/example/confirm.collection\\\"\\n"
+  "  data: \"collection: \\\"/example/advanced/confirm.collection\\\"\\n"
   "exclude: false\\n"
   "\"\n"
   "  position {\n"
@@ -430,7 +430,7 @@ embedded_instances {
   "embedded_components {\n"
   "  id: \"collectionfactory\"\n"
   "  type: \"collectionfactory\"\n"
-  "  data: \"prototype: \\\"/example/background.collection\\\"\\n"
+  "  data: \"prototype: \\\"/example/advanced/background.collection\\\"\\n"
   "load_dynamically: false\\n"
   "\"\n"
   "  position {\n"

example/advanced/advanced.script

@@ -11,4 +11,4 @@ function on_message(self, message_id, message, sender)
 		monarch.show(hash("background"), { no_stack = true })
 		monarch.show(hash("menu"))
 	end
-end
+end

example/advanced/confirm.collection

@@ -4,7 +4,7 @@ embedded_instances {
   id: "go"
   data: "components {\n"
   "  id: \"confirm\"\n"
-  "  component: \"/example/confirm.gui\"\n"
+  "  component: \"/example/advanced/confirm.gui\"\n"
   "  position {\n"
   "    x: 0.0\n"
   "    y: 0.0\n"

example/advanced/confirm.gui

@@ -1,4 +1,4 @@
-script: "/example/confirm.gui_script"
+script: "/example/advanced/confirm.gui_script"
 fonts {
   name: "example"
   font: "/assets/example.font"

example/advanced/debug.gui

@@ -1,4 +1,4 @@
-script: "/example/debug.gui_script"
+script: "/example/advanced/debug.gui_script"
 fonts {
   name: "example"
   font: "/assets/example.font"

example/advanced/game.collection

@@ -4,7 +4,7 @@ embedded_instances {
   id: "go"
   data: "components {\n"
   "  id: \"game\"\n"
-  "  component: \"/example/game.gui\"\n"
+  "  component: \"/example/advanced/game.gui\"\n"
   "  position {\n"
   "    x: 0.0\n"
   "    y: 0.0\n"

example/advanced/game.gui

@@ -1,4 +1,4 @@
-script: "/example/game.gui_script"
+script: "/example/advanced/game.gui_script"
 fonts {
   name: "example"
   font: "/assets/example.font"

example/advanced/menu.collection

@@ -4,7 +4,7 @@ embedded_instances {
   id: "go"
   data: "components {\n"
   "  id: \"menu\"\n"
-  "  component: \"/example/menu.gui\"\n"
+  "  component: \"/example/advanced/menu.gui\"\n"
   "  position {\n"
   "    x: 0.0\n"
   "    y: 0.0\n"
@@ -80,7 +80,7 @@ embedded_instances {
   "embedded_components {\n"
   "  id: \"collectionfactory\"\n"
   "  type: \"collectionfactory\"\n"
-  "  data: \"prototype: \\\"/example/popup.collection\\\"\\n"
+  "  data: \"prototype: \\\"/example/advanced/popup.collection\\\"\\n"
   "load_dynamically: false\\n"
   "\"\n"
   "  position {\n"

example/advanced/menu.gui

@@ -1,4 +1,4 @@
-script: "/example/menu.gui_script"
+script: "/example/advanced/menu.gui_script"
 fonts {
   name: "example"
   font: "/assets/example.font"

example/advanced/popup.collection

@@ -4,7 +4,7 @@ embedded_instances {
   id: "go"
   data: "components {\n"
   "  id: \"popup\"\n"
-  "  component: \"/example/popup.gui\"\n"
+  "  component: \"/example/advanced/popup.gui\"\n"
   "  position {\n"
   "    x: 0.0\n"
   "    y: 0.0\n"

example/advanced/popup.gui

@@ -1,4 +1,4 @@
-script: "/example/popup.gui_script"
+script: "/example/advanced/popup.gui_script"
 fonts {
   name: "example"
   font: "/assets/example.font"

example/advanced/pregame.collection

@@ -4,7 +4,7 @@ embedded_instances {
   id: "go"
   data: "components {\n"
   "  id: \"pregame\"\n"
-  "  component: \"/example/pregame.gui\"\n"
+  "  component: \"/example/advanced/pregame.gui\"\n"
   "  position {\n"
   "    x: 0.0\n"
   "    y: 0.0\n"

example/advanced/pregame.gui

@@ -1,4 +1,4 @@
-script: "/example/pregame.gui_script"
+script: "/example/advanced/pregame.gui_script"
 fonts {
   name: "example"
   font: "/assets/example.font"

example/basic/basic.collection

@@ -0,0 +1,153 @@
+name: "basic"
+scale_along_z: 0
+embedded_instances {
+  id: "screen1"
+  data: "components {\n"
+  "  id: \"screen_proxy\"\n"
+  "  component: \"/monarch/screen_proxy.script\"\n"
+  "  position {\n"
+  "    x: 0.0\n"
+  "    y: 0.0\n"
+  "    z: 0.0\n"
+  "  }\n"
+  "  rotation {\n"
+  "    x: 0.0\n"
+  "    y: 0.0\n"
+  "    z: 0.0\n"
+  "    w: 1.0\n"
+  "  }\n"
+  "  properties {\n"
+  "    id: \"screen_id\"\n"
+  "    value: \"screen1\"\n"
+  "    type: PROPERTY_TYPE_HASH\n"
+  "  }\n"
+  "}\n"
+  "embedded_components {\n"
+  "  id: \"collectionproxy\"\n"
+  "  type: \"collectionproxy\"\n"
+  "  data: \"collection: \\\"/example/basic/screen1.collection\\\"\\n"
+  "exclude: false\\n"
+  "\"\n"
+  "  position {\n"
+  "    x: 0.0\n"
+  "    y: 0.0\n"
+  "    z: 0.0\n"
+  "  }\n"
+  "  rotation {\n"
+  "    x: 0.0\n"
+  "    y: 0.0\n"
+  "    z: 0.0\n"
+  "    w: 1.0\n"
+  "  }\n"
+  "}\n"
+  ""
+  position {
+    x: 0.0
+    y: 0.0
+    z: 0.0
+  }
+  rotation {
+    x: 0.0
+    y: 0.0
+    z: 0.0
+    w: 1.0
+  }
+  scale3 {
+    x: 1.0
+    y: 1.0
+    z: 1.0
+  }
+}
+embedded_instances {
+  id: "basic"
+  data: "components {\n"
+  "  id: \"basic\"\n"
+  "  component: \"/example/basic/basic.script\"\n"
+  "  position {\n"
+  "    x: 0.0\n"
+  "    y: 0.0\n"
+  "    z: 0.0\n"
+  "  }\n"
+  "  rotation {\n"
+  "    x: 0.0\n"
+  "    y: 0.0\n"
+  "    z: 0.0\n"
+  "    w: 1.0\n"
+  "  }\n"
+  "}\n"
+  ""
+  position {
+    x: 0.0
+    y: 0.0
+    z: 0.0
+  }
+  rotation {
+    x: 0.0
+    y: 0.0
+    z: 0.0
+    w: 1.0
+  }
+  scale3 {
+    x: 1.0
+    y: 1.0
+    z: 1.0
+  }
+}
+embedded_instances {
+  id: "screen2"
+  data: "components {\n"
+  "  id: \"screen_proxy\"\n"
+  "  component: \"/monarch/screen_proxy.script\"\n"
+  "  position {\n"
+  "    x: 0.0\n"
+  "    y: 0.0\n"
+  "    z: 0.0\n"
+  "  }\n"
+  "  rotation {\n"
+  "    x: 0.0\n"
+  "    y: 0.0\n"
+  "    z: 0.0\n"
+  "    w: 1.0\n"
+  "  }\n"
+  "  properties {\n"
+  "    id: \"screen_id\"\n"
+  "    value: \"screen2\"\n"
+  "    type: PROPERTY_TYPE_HASH\n"
+  "  }\n"
+  "}\n"
+  "embedded_components {\n"
+  "  id: \"collectionproxy\"\n"
+  "  type: \"collectionproxy\"\n"
+  "  data: \"collection: \\\"/example/basic/screen2.collection\\\"\\n"
+  "exclude: false\\n"
+  "\"\n"
+  "  position {\n"
+  "    x: 0.0\n"
+  "    y: 0.0\n"
+  "    z: 0.0\n"
+  "  }\n"
+  "  rotation {\n"
+  "    x: 0.0\n"
+  "    y: 0.0\n"
+  "    z: 0.0\n"
+  "    w: 1.0\n"
+  "  }\n"
+  "}\n"
+  ""
+  position {
+    x: 0.0
+    y: 0.0
+    z: 0.0
+  }
+  rotation {
+    x: 0.0
+    y: 0.0
+    z: 0.0
+    w: 1.0
+  }
+  scale3 {
+    x: 1.0
+    y: 1.0
+    z: 1.0
+  }
+}

example/basic/basic.script

@@ -0,0 +1,12 @@
+local monarch = require "monarch.monarch"
+
+function init(self)
+	msg.post(".", "acquire_input_focus")
+	msg.post("#", "show_screen1")
+end
+
+function on_message(self, message_id, message, sender)
+	if message_id == hash("show_screen1") then
+		monarch.show("screen1")
+	end
+end

example/basic/screen1.collection

@@ -0,0 +1,37 @@
+name: "screen1"
+scale_along_z: 0
+embedded_instances {
+  id: "go"
+  data: "components {\n"
+  "  id: \"screen1\"\n"
+  "  component: \"/example/basic/screen1.gui\"\n"
+  "  position {\n"
+  "    x: 0.0\n"
+  "    y: 0.0\n"
+  "    z: 0.0\n"
+  "  }\n"
+  "  rotation {\n"
+  "    x: 0.0\n"
+  "    y: 0.0\n"
+  "    z: 0.0\n"
+  "    w: 1.0\n"
+  "  }\n"
+  "}\n"
+  ""
+  position {
+    x: 0.0
+    y: 0.0
+    z: 0.0
+  }
+  rotation {
+    x: 0.0
+    y: 0.0
+    z: 0.0
+    w: 1.0
+  }
+  scale3 {
+    x: 1.0
+    y: 1.0
+    z: 1.0
+  }
+}

example/basic/screen1.gui

@@ -0,0 +1,131 @@
+script: "/example/basic/screen1.gui_script"
+fonts {
+  name: "example"
+  font: "/assets/example.font"
+}
+background_color {
+  x: 0.0
+  y: 0.0
+  z: 0.0
+  w: 0.0
+}
+nodes {
+  position {
+    x: 320.0
+    y: 568.0
+    z: 0.0
+    w: 1.0
+  }
+  rotation {
+    x: 0.0
+    y: 0.0
+    z: 0.0
+    w: 1.0
+  }
+  scale {
+    x: 1.0
+    y: 1.0
+    z: 1.0
+    w: 1.0
+  }
+  size {
+    x: 200.0
+    y: 100.0
+    z: 0.0
+    w: 1.0
+  }
+  color {
+    x: 1.0
+    y: 1.0
+    z: 1.0
+    w: 1.0
+  }
+  type: TYPE_BOX
+  blend_mode: BLEND_MODE_ALPHA
+  texture: ""
+  id: "showscreen2"
+  xanchor: XANCHOR_NONE
+  yanchor: YANCHOR_NONE
+  pivot: PIVOT_CENTER
+  adjust_mode: ADJUST_MODE_FIT
+  layer: ""
+  inherit_alpha: true
+  slice9 {
+    x: 0.0
+    y: 0.0
+    z: 0.0
+    w: 0.0
+  }
+  clipping_mode: CLIPPING_MODE_NONE
+  clipping_visible: true
+  clipping_inverted: false
+  alpha: 1.0
+  template_node_child: false
+  size_mode: SIZE_MODE_AUTO
+}
+nodes {
+  position {
+    x: 0.0
+    y: 0.0
+    z: 0.0
+    w: 1.0
+  }
+  rotation {
+    x: 0.0
+    y: 0.0
+    z: 0.0
+    w: 1.0
+  }
+  scale {
+    x: 1.0
+    y: 1.0
+    z: 1.0
+    w: 1.0
+  }
+  size {
+    x: 200.0
+    y: 100.0
+    z: 0.0
+    w: 1.0
+  }
+  color {
+    x: 0.0
+    y: 0.0
+    z: 0.0
+    w: 1.0
+  }
+  type: TYPE_TEXT
+  blend_mode: BLEND_MODE_ALPHA
+  text: "SHOW SCREEN 2"
+  font: "example"
+  id: "text"
+  xanchor: XANCHOR_NONE
+  yanchor: YANCHOR_NONE
+  pivot: PIVOT_CENTER
+  outline {
+    x: 1.0
+    y: 1.0
+    z: 1.0
+    w: 1.0
+  }
+  shadow {
+    x: 1.0
+    y: 1.0
+    z: 1.0
+    w: 1.0
+  }
+  adjust_mode: ADJUST_MODE_FIT
+  line_break: false
+  parent: "showscreen2"
+  layer: ""
+  inherit_alpha: true
+  alpha: 1.0
+  outline_alpha: 1.0
+  shadow_alpha: 1.0
+  template_node_child: false
+  text_leading: 1.0
+  text_tracking: 0.0
+}
+material: "/builtins/materials/gui.material"
+adjust_reference: ADJUST_REFERENCE_PARENT
+max_nodes: 512

example/basic/screen1.gui_script

@@ -0,0 +1,13 @@
+local monarch = require "monarch.monarch"
+
+function init(self)
+	msg.post(".", "acquire_input_focus")
+end
+
+function on_input(self, action_id, action)
+	if action_id == hash("touch") and action.pressed then
+		if gui.pick_node(gui.get_node("showscreen2"), action.x, action.y) then
+			monarch.show("screen2")
+		end
+	end
+end

example/basic/screen2.collection

@@ -0,0 +1,37 @@
+name: "screen2"
+scale_along_z: 0
+embedded_instances {
+  id: "go"
+  data: "components {\n"
+  "  id: \"screen2\"\n"
+  "  component: \"/example/basic/screen2.gui\"\n"
+  "  position {\n"
+  "    x: 0.0\n"
+  "    y: 0.0\n"
+  "    z: 0.0\n"
+  "  }\n"
+  "  rotation {\n"
+  "    x: 0.0\n"
+  "    y: 0.0\n"
+  "    z: 0.0\n"
+  "    w: 1.0\n"
+  "  }\n"
+  "}\n"
+  ""
+  position {
+    x: 0.0
+    y: 0.0
+    z: 0.0
+  }
+  rotation {
+    x: 0.0
+    y: 0.0
+    z: 0.0
+    w: 1.0
+  }
+  scale3 {
+    x: 1.0
+    y: 1.0
+    z: 1.0
+  }
+}

example/basic/screen2.gui

@@ -0,0 +1,131 @@
+script: "/example/basic/screen2.gui_script"
+fonts {
+  name: "example"
+  font: "/assets/example.font"
+}
+background_color {
+  x: 0.0
+  y: 0.0
+  z: 0.0
+  w: 0.0
+}
+nodes {
+  position {
+    x: 320.0
+    y: 568.0
+    z: 0.0
+    w: 1.0
+  }
+  rotation {
+    x: 0.0
+    y: 0.0
+    z: 0.0
+    w: 1.0
+  }
+  scale {
+    x: 1.0
+    y: 1.0
+    z: 1.0
+    w: 1.0
+  }
+  size {
+    x: 200.0
+    y: 100.0
+    z: 0.0
+    w: 1.0
+  }
+  color {
+    x: 1.0
+    y: 1.0
+    z: 1.0
+    w: 1.0
+  }
+  type: TYPE_BOX
+  blend_mode: BLEND_MODE_ALPHA
+  texture: ""
+  id: "backbutton"
+  xanchor: XANCHOR_NONE
+  yanchor: YANCHOR_NONE
+  pivot: PIVOT_CENTER
+  adjust_mode: ADJUST_MODE_FIT
+  layer: ""
+  inherit_alpha: true
+  slice9 {
+    x: 0.0
+    y: 0.0
+    z: 0.0
+    w: 0.0
+  }
+  clipping_mode: CLIPPING_MODE_NONE
+  clipping_visible: true
+  clipping_inverted: false
+  alpha: 1.0
+  template_node_child: false
+  size_mode: SIZE_MODE_AUTO
+}
+nodes {
+  position {
+    x: 0.0
+    y: 0.0
+    z: 0.0
+    w: 1.0
+  }
+  rotation {
+    x: 0.0
+    y: 0.0
+    z: 0.0
+    w: 1.0
+  }
+  scale {
+    x: 1.0
+    y: 1.0
+    z: 1.0
+    w: 1.0
+  }
+  size {
+    x: 200.0
+    y: 100.0
+    z: 0.0
+    w: 1.0
+  }
+  color {
+    x: 0.0
+    y: 0.0
+    z: 0.0
+    w: 1.0
+  }
+  type: TYPE_TEXT
+  blend_mode: BLEND_MODE_ALPHA
+  text: "BACK"
+  font: "example"
+  id: "text"
+  xanchor: XANCHOR_NONE
+  yanchor: YANCHOR_NONE
+  pivot: PIVOT_CENTER
+  outline {
+    x: 1.0
+    y: 1.0
+    z: 1.0
+    w: 1.0
+  }
+  shadow {
+    x: 1.0
+    y: 1.0
+    z: 1.0
+    w: 1.0
+  }
+  adjust_mode: ADJUST_MODE_FIT
+  line_break: false
+  parent: "backbutton"
+  layer: ""
+  inherit_alpha: true
+  alpha: 1.0
+  outline_alpha: 1.0
+  shadow_alpha: 1.0
+  template_node_child: false
+  text_leading: 1.0
+  text_tracking: 0.0
+}
+material: "/builtins/materials/gui.material"
+adjust_reference: ADJUST_REFERENCE_PARENT
+max_nodes: 512

example/basic/screen2.gui_script

@@ -0,0 +1,13 @@
+local monarch = require "monarch.monarch"
+
+function init(self)
+	msg.post(".", "acquire_input_focus")
+end
+
+function on_input(self, action_id, action)
+	if action_id == hash("touch") and action.pressed then
+		if gui.pick_node(gui.get_node("backbutton"), action.x, action.y) then
+			monarch.back()
+		end
+	end
+end

game.project

@@ -1,10 +1,10 @@
 [project]
 title = Monarch
 version = 0.9
-dependencies = https://github.com/britzl/deftest/archive/2.7.0.zip
+dependencies#0 = https://github.com/britzl/deftest/archive/2.7.0.zip
 
 [bootstrap]
-main_collection = /example/example.collectionc
+main_collection = /example/advanced/advanced.collectionc
 
 [input]
 game_binding = /input/game.input_bindingc

monarch/monarch.lua

@@ -1,4 +1,5 @@
 local callback_tracker = require "monarch.utils.callback_tracker"
+local async = require "monarch.utils.async"
 
 local M = {}
 
@@ -33,6 +34,8 @@ M.SCREEN_TRANSITION_OUT_STARTED = hash("monarch_screen_transition_out_started")
 M.SCREEN_TRANSITION_OUT_FINISHED = hash("monarch_screen_transition_out_finished")
 M.SCREEN_TRANSITION_FAILED = hash("monarch_screen_transition_failed")
 
+local WAIT_FOR_TRANSITION = true
+local DO_NOT_WAIT_FOR_TRANSITION = false
 
 -- all registered screens
 local screens = {}
@@ -47,7 +50,6 @@ local transition_listeners = {}
 -- monarch is considered busy while there are active transitions
 local active_transition_count = 0
 
-
 local function log(...) end
 
 function M.debug()
@@ -93,8 +95,8 @@ end
 local queue = {}
 
 local function queue_error(message)
-	print(message)
 	log("queue() error - clearing queue")
+	print(message)
 	while next(queue) do
 		table.remove(queue)
 	end
@@ -184,7 +186,7 @@ function M.is_visible(id)
 	assert(id, "You must provide a screen id")
 	id = tohash(id)
 	assert(screens[id], ("There is no screen registered with id %s"):format(tostring(id)))
-	return screens[id].loaded
+	return screens[id].visible
 end
 
 
@@ -337,7 +339,7 @@ end
 local function change_context(screen)
 	log("change_context()", screen.id)
 	screen.wait_for = CONTEXT
-	msg.post(screen.script, CONTEXT)
+	msg.post(screen.script, CONTEXT, { id = screen.id })
 	coroutine.yield()
 	screen.wait_for = nil
 end
@@ -451,12 +453,14 @@ local function load(screen)
 	return true
 end
 
-local function transition(screen, message_id, message)
+local function transition(screen, message_id, message, wait)
 	log("transition()", screen.id)
 	if screen.transition_url then
 		screen.wait_for = M.TRANSITION.DONE
 		msg.post(screen.transition_url, message_id, message)
-		coroutine.yield()
+		if wait then
+			coroutine.yield()
+		end
 		screen.wait_for = nil
 	else
 		log("transition() no transition url - ignoring")
@@ -481,6 +485,7 @@ local function focus_lost(screen, next_screen)
 		-- the focus_url
 		-- we add a delay to ensure the message queue has time to be processed
 		cowait(0)
+		cowait(0)
 	else
 		log("focus_lost() no focus url - ignoring")
 	end
@@ -538,8 +543,21 @@ local function enable(screen, previous_screen)
 	end)
 end
 
-local function show_out(screen, next_screen, cb)
+local function show_out(screen, next_screen, wait_for_transition, cb)
 	log("show_out()", screen.id)
+	assert(wait_for_transition ~= nil)
+	-- make sure the screen is loaded. scenario:
+	-- show A - stack [A]
+	--   - show_in for A
+	-- show B with no_stack = true - stack [A]
+	--   - show_in for B and show_out for A
+	-- show C
+	--   - show_in for C and show_out for A again!
+	if not screen.loaded then
+		log("show_out() screen was not loaded")
+		cb()
+		return
+	end
 	run_coroutine(screen, cb, function()
 		active_transition_count = active_transition_count + 1
 		notify_transition_listeners(M.SCREEN_TRANSITION_OUT_STARTED, { screen = screen.id, next_screen = next_screen.id })
@@ -552,7 +570,8 @@ local function show_out(screen, next_screen, cb)
 		local next_is_popup = next_screen and next_screen.popup
 		local current_is_popup = screen.popup
 		if (not next_is_popup and not current_is_popup) or (current_is_popup) then
-			transition(screen, M.TRANSITION.SHOW_OUT, { next_screen = next_screen.id })
+			transition(screen, M.TRANSITION.SHOW_OUT, { next_screen = next_screen.id }, wait_for_transition)
+			screen.visible = false
 			unload(screen)
 		elseif next_is_popup then
 			change_timestep(screen)
@@ -562,8 +581,9 @@ local function show_out(screen, next_screen, cb)
 	end)
 end
 
-local function show_in(screen, previous_screen, reload, add_to_stack, cb)
+local function show_in(screen, previous_screen, reload, add_to_stack, wait_for_transition, cb)
-	log("show_in()", screen.id)
+	log("show_in()", screen.id, wait_for_transition)
+	assert(wait_for_transition ~= nil)
 	run_coroutine(screen, cb, function()
 		active_transition_count = active_transition_count + 1
 		notify_transition_listeners(M.SCREEN_TRANSITION_IN_STARTED, { screen = screen.id, previous_screen = previous_screen and previous_screen.id })
@@ -572,18 +592,22 @@ local function show_in(screen, previous_screen, reload, add_to_stack, cb)
 			log("show_in() reloading", screen.id)
 			unload(screen, reload)
 		end
+		if add_to_stack then
+			stack[#stack + 1] = screen
+		end
 		local ok, err = load(screen)
 		if not ok then
 			log("show_in()", err)
+			if add_to_stack then
+				stack[#stack] = nil
+			end
 			active_transition_count = active_transition_count - 1
 			notify_transition_listeners(M.SCREEN_TRANSITION_FAILED, { screen = screen.id })
 			return
 		end
-		if add_to_stack then
-			stack[#stack + 1] = screen
-		end
 		reset_timestep(screen)
-		transition(screen, M.TRANSITION.SHOW_IN, { previous_screen = previous_screen and previous_screen.id })
+		transition(screen, M.TRANSITION.SHOW_IN, { previous_screen = previous_screen and previous_screen.id }, wait_for_transition)
+		screen.visible = true
 		acquire_input(screen)
 		focus_gained(screen, previous_screen)
 		active_transition_count = active_transition_count - 1
@@ -591,8 +615,9 @@ local function show_in(screen, previous_screen, reload, add_to_stack, cb)
 	end)
 end
 
-local function back_in(screen, previous_screen, cb)
+local function back_in(screen, previous_screen, wait_for_transition, cb)
 	log("back_in()", screen.id)
+	assert(wait_for_transition ~= nil)
 	run_coroutine(screen, cb, function()
 		active_transition_count = active_transition_count + 1
 		notify_transition_listeners(M.SCREEN_TRANSITION_IN_STARTED, { screen = screen.id, previous_screen = previous_screen and previous_screen.id })
@@ -606,8 +631,9 @@ local function back_in(screen, previous_screen, cb)
 		end
 		reset_timestep(screen)
 		if previous_screen and not previous_screen.popup then
-			transition(screen, M.TRANSITION.BACK_IN, { previous_screen = previous_screen.id })
+			transition(screen, M.TRANSITION.BACK_IN, { previous_screen = previous_screen.id }, wait_for_transition)
 		end
+		screen.visible = true
 		acquire_input(screen)
 		focus_gained(screen, previous_screen)
 		active_transition_count = active_transition_count - 1
@@ -615,8 +641,9 @@ local function back_in(screen, previous_screen, cb)
 	end)
 end
 
-local function back_out(screen, next_screen, cb)
+local function back_out(screen, next_screen, wait_for_transition, cb)
 	log("back_out()", screen.id)
+	assert(wait_for_transition ~= nil)
 	run_coroutine(screen, cb, function()
 		notify_transition_listeners(M.SCREEN_TRANSITION_OUT_STARTED, { screen = screen.id, next_screen = next_screen and next_screen.id })
 		active_transition_count = active_transition_count + 1
@@ -626,7 +653,8 @@ local function back_out(screen, next_screen, cb)
 		if next_screen and screen.popup then
 			reset_timestep(next_screen)
 		end
-		transition(screen, M.TRANSITION.BACK_OUT, { next_screen = next_screen and next_screen.id })
+		transition(screen, M.TRANSITION.BACK_OUT, { next_screen = next_screen and next_screen.id }, wait_for_transition)
+		screen.visible = false
 		unload(screen)
 		active_transition_count = active_transition_count - 1
 		notify_transition_listeners(M.SCREEN_TRANSITION_OUT_FINISHED, { screen = screen.id, next_screen = next_screen and next_screen.id })
@@ -679,9 +707,7 @@ function M.show(id, options, data, cb)
 	id = tohash(id)
 	assert(screens[id], ("There is no screen registered with id %s"):format(tostring(id)))
 
-	log("show() queuing action", id)
 	queue_action(function(action_done, action_error)
-		log("show()", id)
 		local screen = screens[id]
 		if not screen then
 			action_error(("show() there is no longer a screen with id %s"):format(tostring(id)))
@@ -719,21 +745,12 @@ function M.show(id, options, data, cb)
 						pop = pop - 1
 					end
 					stack[#stack] = nil
-					show_out(top, screen, callbacks.track())
+					async(function(await, resume)
-					callbacks.yield_until_done()
+						await(show_out, top, screen, WAIT_FOR_TRANSITION, resume)
+					end)
 					top = stack[#stack]
 				end
 
-				-- unload the previous screen and transition out from top
-				-- wait until we are done if showing the same screen as is already visible
-				if top and not top.popup then
-					local same_screen = top and top.id == screen.id
-					show_out(top, screen, callbacks.track())
-					if same_screen or (options and options.sequential) then
-						callbacks.yield_until_done()
-					end
-				end
-
 				-- if the screen we want to show is in the stack
 				-- already and the clear flag is set then we need
 				-- to remove every screen on the stack up until and
@@ -755,8 +772,8 @@ function M.show(id, options, data, cb)
 				end
 			end
 
-			-- show screen, wait until preloaded if it is already preloading
+			-- wait until preloaded if it is already preloading
-			-- this can typpically happen if you do a show() on app start for a
+			-- this can typically happen if you do a show() on app start for a
 			-- screen that has Preload set to true
 			if M.is_preloading(id) then
 				M.when_preloaded(id, function()
@@ -764,7 +781,26 @@ function M.show(id, options, data, cb)
 				end)
 				coroutine.yield()
 			end
-			show_in(screen, top, options and options.reload, add_to_stack, callbacks.track())
+
+			-- showing and hiding the same screen?
+			local same_screen = top and top.id == screen.id
+			if same_screen or (options and options.sequential) then
+				if top then
+					async(function(await, resume)
+						await(show_out, top, screen, WAIT_FOR_TRANSITION, resume)
+					end)
+				end
+				show_in(screen, top, options and options.reload, add_to_stack, WAIT_FOR_TRANSITION, callbacks.track())
+			else
+				-- show screen
+				local cb = callbacks.track()
+				show_in(screen, top, options and options.reload, add_to_stack, DO_NOT_WAIT_FOR_TRANSITION, function()
+					if add_to_stack and top and not top.popup then
+						show_out(top, screen, WAIT_FOR_TRANSITION, callbacks.track())
+					end
+					cb()
+				end)
+			end
 
 			callbacks.when_done(function()
 				pcallfn(cb)
@@ -793,7 +829,7 @@ end
 
 -- Hide a screen. The screen must either be at the top of the stack or
 -- visible but not added to the stack (through the no_stack option)
--- @param id (string|hash) - Id of the screen to show
+-- @param id (string|hash) - Id of the screen to .hide
 -- @param cb (function) - Optional callback to invoke when the screen is hidden
 -- @return true if successfully hiding, false if busy or for some other reason unable to hide the screen
 function M.hide(id, cb)
@@ -818,7 +854,7 @@ function M.hide(id, cb)
 					action_error(("hide() there is no longer a screen with id %s"):format(tostring(id)))
 					return
 				end
-				back_out(screen, nil, callbacks.track())
+				back_out(screen, nil, WAIT_FOR_TRANSITION, callbacks.track())
 			end
 			callbacks.when_done(function()
 				pcallfn(cb)
@@ -830,6 +866,34 @@ function M.hide(id, cb)
 end
 
 
+
+
+-- Clear stack completely. Any visible screens will be hidden by navigating back out
+-- from them.
+-- @param cb (function) - Optional callback to invoke when the stack has been cleared
+function M.clear(cb)
+	log("clear() queuing action")
+
+	queue_action(function(action_done, action_error)
+		async(function(await, resume)
+			local top = stack[#stack]
+			while top and top.visible do
+				stack[#stack] = nil
+				await(back_out, top, screen, WAIT_FOR_TRANSITION, resume)
+				top = stack[#stack]
+			end
+
+			while stack[#stack] do
+				table.remove(stack)
+			end
+
+			pcallfn(cb)
+			pcallfn(action_done)
+		end)
+	end)
+end
+
+
 -- Go back to the previous screen in the stack.
 -- @param data (*) - Optional data to set for the previous screen
 -- @param cb (function) - Optional callback to invoke when the previous screen is visible again
@@ -838,6 +902,7 @@ function M.back(data, cb)
 
 	queue_action(function(action_done)
 		local callbacks = callback_tracker()
+		local back_cb = callbacks.track()
 		local screen = table.remove(stack)
 		if screen then
 			log("back()", screen.id)
@@ -845,19 +910,22 @@ function M.back(data, cb)
 			-- if we go back to the same screen we need to first hide it
 			-- and wait until it is hidden before we show it again
 			if top and screen.id == top.id then
-				back_out(screen, top, function()
+				back_out(screen, top, WAIT_FOR_TRANSITION, function()
 					if data then
 						top.data = data
 					end
-					back_in(top, screen, callbacks.track())
+					back_in(top, screen, WAIT_FOR_TRANSITION, back_cb)
 				end)
 			else
-				back_out(screen, top, callbacks.track())
 				if top then
 					if data then
 						top.data = data
 					end
-					back_in(top, screen, callbacks.track())
+					back_in(top, screen, DO_NOT_WAIT_FOR_TRANSITION, function()
+						back_out(screen, top, WAIT_FOR_TRANSITION, back_cb)
+					end)
+				else
+					back_out(screen, top, WAIT_FOR_TRANSITION, back_cb)
 				end
 			end
 		end
@@ -1021,13 +1089,9 @@ function M.post(id, message_id, message)
 			return false, "Unable to post message since screen has no receiver url specified"
 		end
 	else
-		run_coroutine(screen, nil, function()
+		for id,instance in pairs(screen.factory_ids) do
-			change_context(screen)
+			msg.post(instance, message_id, message)
-			log("post() sending message to", screen.receiver_url)
+		end
-			for id,instance in pairs(screen.factory_ids) do
-				msg.post(instance, message_id, message)
-			end
-		end)
 	end
 	return true
 end
@@ -1091,6 +1155,19 @@ function M.bottom(offset)
 	return screen and screen.id
 end
 
+
+--- Set the timestep to apply for a screen when below a popup
+-- @param id (string|hash) Id of the screen to change timestep setting for
+-- @param timestep (number) Timestep to apply
+function M.set_timestep_below_popup(id, timestep)
+	assert(id, "You must provide a screen id")
+	assert(timestep, "You must provide a timestep")
+	id = tohash(id)
+	assert(screens[id], ("There is no screen registered with id %s"):format(tostring(id)))
+	screens[id].timestep_below_popup = timestep
+end
+
+
 local function url_to_key(url)
 	return (url.socket or hash("")) .. (url.path or hash("")) .. (url.fragment or hash(""))
 end
@@ -1120,4 +1197,9 @@ function M.dump_stack()
 	return s
 end
 
+function M.queue_size()
+	return #queue
+end
+
+
 return M

monarch/transitions/gui.lua

@@ -121,11 +121,15 @@ local function create()
 	local current_transition = nil
 
 	local function create_transition(transition_id, node, fn, easing, duration, delay)
+		assert(transition_id, "You must provide a valid transition id")
+		assert(node, "You must provide a node")
+		assert(fn, "You must provide a transition function")
+
 		local t = transitions[transition_id]
 		-- find if there's already a transition for the node in
 		-- question and if so update it instead of creating a new
 		-- transition
-		for _,transition in ipairs(t) do
+		for _,transition in ipairs(t.transitions) do
 			if transition.node == node then
 				transition.fn = fn
 				transition.easing = easing

monarch/utils/async.lua

@@ -0,0 +1,47 @@
+local M = {}
+
+local NOT_STARTED = "not_started"
+local YIELDED = "yielded"
+local RESUMED = "resumed"
+local RUNNING = "running"
+
+function M.async(fn)
+	local co = coroutine.running()
+	
+	local state = NOT_STARTED
+
+	local function await(fn, ...)
+		state = RUNNING
+		fn(...)
+		if state ~= RUNNING then
+			return
+		end
+		state = YIELDED
+		local r = { coroutine.yield() }
+		return unpack(r)
+	end
+
+	local function resume(...)
+		if state ~= RUNNING then
+			state = RUNNING
+			local ok, err = coroutine.resume(co, ...)
+			if not ok then
+				print(err)
+				print(debug.traceback())
+			end
+		end
+	end
+
+	if co then
+		return fn(await, resume)
+	else
+		co = coroutine.create(fn)
+		return resume(await, resume)
+	end
+end
+
+return setmetatable(M, {
+	__call = function(t, ...)
+		return M.async(...)
+	end
+})

monarch/utils/callback_tracker.lua

@@ -6,13 +6,18 @@ function M.create()
 
 	local callback = nil
 	local callback_count = 0
+	local all_callbacks_done = false
 
 	local function is_done()
 		return callback_count == 0
 	end
 
 	local function invoke_if_done()
+		if all_callbacks_done then
+			print("Warning: The same callback will be invoked twice from the callback tracker!", id or "")
+		end
 		if callback_count == 0 and callback then
+			all_callbacks_done = true
 			local ok, err = pcall(callback)
 			if not ok then print(err) end
 		end
@@ -41,20 +46,6 @@ function M.create()
 		invoke_if_done()
 	end
 
-	function instance.yield_until_done()
-		local co = coroutine.running()
-		callback = function()
-			local ok, err = coroutine.resume(co)
-			if not ok then
-				print(err)
-			end
-		end
-		invoke_if_done()
-		if not is_done() then
-			coroutine.yield()
-		end
-	end
-
 	return instance
 end
 

test/cowait.lua

@@ -4,7 +4,10 @@ function M.seconds(amount)
 	local co = coroutine.running()
 	assert(co, "You must run this from within a coroutine")
 	timer.delay(amount, false, function()
-		coroutine.resume(co)
+		local ok, err = coroutine.resume(co)
+		if not ok then
+			print(err)
+		end
 	end)
 	coroutine.yield()
 end
@@ -13,10 +16,13 @@ function M.eval(fn, timeout)
 	local co = coroutine.running()
 	assert(co, "You must run this from within a coroutine")
 	local start = socket.gettime()
-	timer.delay(0.01, true, function(self, handle, time_elapsed)
+	timer.delay(0.02, true, function(self, handle, time_elapsed)
 		if fn() or (timeout and socket.gettime() > (start + timeout)) then
 			timer.cancel(handle)
-			coroutine.resume(co)
+			local ok, err = coroutine.resume(co)
+			if not ok then
+				print(err)
+			end
 		end
 	end)
 	coroutine.yield()

test/data/screen_preload.gui_script

@@ -1,5 +1,5 @@
 function init(self)
 	local monarch = require "monarch.monarch"
 	local data = monarch.data(hash("screen_preload"))
-	data.count = data.count + 1
+	if data then data.count = data.count + 1 end
 end

test/test_monarch.lua

@@ -39,7 +39,7 @@ return function()
 
 	local screens_instances = {}
 
-	local function is_shown(screen_id)
+	local function is_visible(screen_id)
 		return monarch.is_visible(screen_id)
 	end
 
@@ -65,9 +65,6 @@ return function()
 	local function wait_until_visible(screen_id)
 		return wait_timeout(is_visible, screen_id)
 	end
-	local function wait_until_shown(screen_id)
-		return wait_timeout(is_shown, screen_id)
-	end
 	local function wait_until_hidden(screen_id)
 		return wait_timeout(is_hidden, screen_id)
 	end
@@ -77,6 +74,9 @@ return function()
 	local function wait_until_not_busy()
 		return wait_timeout(function() return not monarch.is_busy() end)
 	end
+	local function wait_until_stack(expected_screens)
+		return wait_timeout(function() return check_stack(expected_screens) end)
+	end
 	local function wait_until_loaded(screen_id)
 		wait_until_done(function(done)
 			monarch.when_preloaded(screen_id, done)
@@ -115,114 +115,113 @@ return function()
 
 		it("should be able to show screens and go back to previous screens", function()
 			monarch.show(SCREEN1_STR)
-			assert(wait_until_shown(SCREEN1), "Screen1 was never shown")
+			assert(wait_until_stack({ SCREEN1 }))
-			assert_stack({ SCREEN1 })
 
 			monarch.show(SCREEN2)
-			assert(wait_until_hidden(SCREEN1), "Screen1 was never hidden")
+			assert(wait_until_stack({ SCREEN1, SCREEN2 }))
-			assert(wait_until_shown(SCREEN2), "Screen2 was never shown")
-			assert_stack({ SCREEN1, SCREEN2 })
 
 			monarch.back()
-			assert(wait_until_hidden(SCREEN2), "Screen2 was never hidden")
+			assert(wait_until_stack({ SCREEN1 }))
-			assert(wait_until_shown(SCREEN1), "Screen1 was never shown")
-			assert_stack({ SCREEN1 })
 
 			monarch.back()
-			assert(wait_until_hidden(SCREEN1), "Screen1 was never hidden")
+			assert(wait_until_stack({ }))
-			assert_stack({ })
 		end)
 
 		it("should be able to replace screens at the top of the stack", function()
 			monarch.show(SCREEN1_STR)
-			assert(wait_until_shown(SCREEN1), "Screen1 was never shown")
+			assert(wait_until_stack({ SCREEN1 }), "Screen1 was never shown")
-			assert_stack({ SCREEN1 })
 
 			monarch.show(SCREEN2)
-			assert(wait_until_hidden(SCREEN1), "Screen1 was never hidden")
+			assert(wait_until_stack({ SCREEN1, SCREEN2 }))
-			assert(wait_until_shown(SCREEN2), "Screen2 was never shown")
-			assert_stack({ SCREEN1, SCREEN2 })
 
 			monarch.replace(SCREEN1)
-			assert(wait_until_hidden(SCREEN2), "Screen2 was never hidden")
+			assert(wait_until_stack({ SCREEN1, SCREEN1 }))
-			assert(wait_until_shown(SCREEN1), "Screen1 was never shown")
-			assert_stack({ SCREEN1, SCREEN1 })
 		end)
 
 		it("should be able to tell if a screen is visible or not", function()
 			assert(not monarch.is_visible(SCREEN1))
 			monarch.show(SCREEN1)
-			assert(wait_until_shown(SCREEN1), "Screen1 was never shown")
+			assert(wait_until_stack({ SCREEN1 }))
-			assert_stack({ SCREEN1 })
+			assert(wait_until_visible(SCREEN1))
-			assert(monarch.is_visible(SCREEN1))
 			
 			monarch.show(SCREEN2)
-			assert(wait_until_hidden(SCREEN1), "Screen1 was never hidden")
+			assert(wait_until_stack({ SCREEN1, SCREEN2 }))
-			assert(wait_until_shown(SCREEN2), "Screen2 was never shown")
+			assert(wait_until_hidden(SCREEN1))
-			assert_stack({ SCREEN1, SCREEN2 })
+			assert(wait_until_visible(SCREEN2))
-			assert(not monarch.is_visible(SCREEN1))
-			assert(monarch.is_visible(SCREEN2))
 			
 			monarch.show(POPUP1)
-			assert(wait_until_shown(POPUP1), "Popup1 was never shown")
+			assert(wait_until_stack({ SCREEN1, SCREEN2, POPUP1 }))
-			assert_stack({ SCREEN1, SCREEN2, POPUP1 })
+			assert(wait_until_hidden(SCREEN1))
-			assert(not monarch.is_visible(SCREEN1))
+			assert(wait_until_visible(SCREEN2))
-			assert(monarch.is_visible(SCREEN2))
+			assert(wait_until_visible(POPUP1))
-			assert(monarch.is_visible(POPUP1))
 		end)
 
 		it("should be able to show a screen without adding it to the stack", function()
 			monarch.show(BACKGROUND, { no_stack = true })
-			assert(wait_until_shown(BACKGROUND), "Background was never shown")
+			assert(wait_until_visible(BACKGROUND), "Background was never shown")
-			assert_stack({ })
+			assert(wait_until_stack({ }))
 
 			monarch.show(SCREEN1)
-			assert(wait_until_shown(SCREEN1), "Screen1 was never shown")
+			assert(wait_until_stack({ SCREEN1 }))
-			assert_stack({ SCREEN1 })
 		end)
 
+		it("should be able to show a screen without adding it to the stack at any time", function()
+			monarch.show(SCREEN1)
+			assert(wait_until_not_busy())
+			assert(wait_until_stack({ SCREEN1 }))
+			
+			monarch.show(BACKGROUND, { no_stack = true })
+			assert(wait_until_not_busy())
+			assert(wait_until_visible(BACKGROUND))
+			assert(wait_until_stack({ SCREEN1 }))
+			
+			monarch.show(SCREEN2)
+			assert(wait_until_not_busy())
+			assert(wait_until_stack({ SCREEN1, SCREEN2 }))
+
+			monarch.back()
+			assert(wait_until_not_busy())
+			assert(wait_until_visible(SCREEN1))
+			assert(wait_until_stack({ SCREEN1 }))
+		end)
+		
 		it("should be able to hide a screen not added to the stack", function()
 			monarch.show(BACKGROUND, { no_stack = true })
-			assert(wait_until_shown(BACKGROUND), "Background was never shown")
+			assert(wait_until_visible(BACKGROUND), "Background was never shown")
 			assert_stack({ })
 
 			monarch.hide(BACKGROUND)
 			assert(wait_until_hidden(BACKGROUND), "Background was never hidden")
 			assert_stack({ })
 		end)
-
+		
 		it("should be able to hide the top screen", function()
 			monarch.show(SCREEN1)
-			assert(wait_until_shown(SCREEN1), "Screen1 was never shown")
+			assert(wait_until_stack({ SCREEN1 }))
-			assert_stack({ SCREEN1 })
 
 			monarch.show(SCREEN2)
-			assert(wait_until_hidden(SCREEN1), "Screen1 was never hidden")
+			assert(wait_until_stack({ SCREEN1, SCREEN2 }))
-			assert(wait_until_shown(SCREEN2), "Screen2 was never shown")
-			assert_stack({ SCREEN1, SCREEN2 })
 
 			assert(monarch.hide(SCREEN1) == false)
 			assert(monarch.hide(SCREEN2) == true)
-			assert(wait_until_hidden(SCREEN2), "Screen2 was never hidden")
+			assert(wait_until_stack({ SCREEN1 }))
-			assert(wait_until_shown(SCREEN1), "Screen1 was never shown")
-			assert_stack({ SCREEN1 })
 		end)
 
 		it("should be able to pass data to a screen when showing it or going back to it", function()
 			local data1 = { foo = "bar" }
 			monarch.show(SCREEN1, nil, data1)
-			assert(wait_until_shown(SCREEN1), "Screen1 was never shown")
+			assert(wait_until_visible(SCREEN1), "Screen1 was never shown")
 
 			local data2 = { boo = "car" }
 			monarch.show(SCREEN2, nil, data2)
-			assert(wait_until_shown(SCREEN2), "Screen2 was never shown")
+			assert(wait_until_visible(SCREEN2), "Screen2 was never shown")
 			
 			assert(monarch.data(SCREEN1) == data1, "Expected data on screen1 doesn't match actual data")
 			assert(monarch.data(SCREEN2) == data2, "Expected data on screen2 doesn't match actual data")
 
 			local data_back = { going = "back" }
 			monarch.back(data_back)
-			assert(wait_until_shown(SCREEN1))
+			assert(wait_until_visible(SCREEN1))
 
 			assert(monarch.data(SCREEN1) == data_back, "Expected data on screen1 doesn't match actual data")
 		end)
@@ -230,51 +229,40 @@ return function()
 
 		it("should be able to show the same screen twice", function()
 			monarch.show(SCREEN1)
-			assert(wait_until_shown(SCREEN1), "Screen1 was never shown")
+			assert(wait_until_stack({ SCREEN1 }))
-			assert_stack({ SCREEN1 })
 			monarch.show(SCREEN1)
-			assert(wait_until_shown(SCREEN1), "Screen1 was never shown")
+			assert(wait_until_stack({ SCREEN1, SCREEN1 }))
-			assert_stack({ SCREEN1, SCREEN1 })
 		end)
 		
 
 		it("should be able to clear the stack if trying to show the same screen twice", function()
 			monarch.show(SCREEN1)
-			assert(wait_until_shown(SCREEN1), "Screen1 was never shown")
+			assert(wait_until_stack({ SCREEN1 }))
-			assert_stack({ SCREEN1 })
 			monarch.show(SCREEN2)
-			assert(wait_until_shown(SCREEN2), "Screen2 was never shown")
+			assert(wait_until_stack({ SCREEN1, SCREEN2 }))
-			assert_stack({ SCREEN1, SCREEN2 })
 			monarch.show(SCREEN1, { clear = true })
-			assert(wait_until_shown(SCREEN1), "Screen1 was never shown")
+			assert(wait_until_stack({ SCREEN1 }))
-			assert_stack({ SCREEN1 })
 		end)
 		
 
 		it("should be able to show one popup on top of another if the Popup On Popup flag is set", function()
 			monarch.show(SCREEN1)
-			assert(wait_until_shown(SCREEN1), "Screen1 was never shown")
+			assert(wait_until_stack({ SCREEN1 }))
-			assert_stack({ SCREEN1 })
 			monarch.show(POPUP1)
-			assert(wait_until_shown(POPUP1), "Popup1 was never shown")
+			assert(wait_until_stack({ SCREEN1, POPUP1 }))
-			assert_stack({ SCREEN1, POPUP1 })
 			monarch.show(POPUP2)
-			assert(wait_until_shown(POPUP2), "Popup2 was never shown")
+			assert(wait_until_stack({ SCREEN1, POPUP1, POPUP2 }))
-			assert_stack({ SCREEN1, POPUP1, POPUP2 })
 		end)
 
 
-		it("should prevent further operations while hiding/showing a screen", function()
+		it("should be able to queue multiple display commands", function()
 			monarch.show(SCREEN1)
 			monarch.show(SCREEN2)
-			assert(wait_until_shown(SCREEN1), "Screen1 was never shown")
+			assert(wait_until_stack({ SCREEN1, SCREEN2 }))
-			assert(wait_until_shown(SCREEN2), "Screen2 was never shown")
-			assert_stack({ SCREEN1, SCREEN2 })
 
 			assert(monarch.back())
 			assert(monarch.back())
-			assert(wait_until_hidden(SCREEN1), "Screen1 was never hidden")
+			assert(wait_until_stack({}), "Stack never became empty")
-			assert(wait_until_hidden(SCREEN2), "Screen2 was never hidden")
 		end)
 
 
@@ -292,84 +280,63 @@ return function()
 		
 		it("should close any open popups when showing a popup without the Popup On Popup flag", function()
 			monarch.show(SCREEN1)
-			assert(wait_until_shown(SCREEN1), "Screen1 was never shown")
+			assert(wait_until_stack({ SCREEN1 }))
-			assert_stack({ SCREEN1 })
 			monarch.show(POPUP2)
-			assert(wait_until_shown(POPUP2), "Popup2 was never shown")
+			assert(wait_until_stack({ SCREEN1, POPUP2 }))
-			assert_stack({ SCREEN1, POPUP2 })
 			monarch.show(POPUP1)
-			assert(wait_until_shown(POPUP1), "Popup1 was never shown")
+			assert(wait_until_stack({ SCREEN1, POPUP1 }))
-			assert_stack({ SCREEN1, POPUP1 })
 		end)
 
 		
 		it("should close any open popups when showing a non-popup", function()
 			monarch.show(SCREEN1)
-			assert(wait_until_shown(SCREEN1), "Screen1 was never shown")
+			assert(wait_until_stack({ SCREEN1 }))
-			assert_stack({ SCREEN1 })
 			monarch.show(POPUP1)
-			assert(wait_until_shown(POPUP1), "Popup1 was never shown")
+			assert(wait_until_stack({ SCREEN1, POPUP1 }))
-			assert_stack({ SCREEN1, POPUP1 })
 			monarch.show(POPUP2)
-			assert(wait_until_shown(POPUP2), "Popup2 was never shown")
+			assert(wait_until_stack({ SCREEN1, POPUP1, POPUP2 }))
-			assert_stack({ SCREEN1, POPUP1, POPUP2 })
 			monarch.show(SCREEN2)
-			assert(wait_until_shown(SCREEN2), "Popup2 was never shown")
+			assert(wait_until_stack({ SCREEN1, SCREEN2 }))
-			assert_stack({ SCREEN1, SCREEN2 })
 		end)
 
 		it("should close any open popups when replacing a non-popup", function()
 			monarch.show(SCREEN1)
-			assert(wait_until_shown(SCREEN1), "Screen1 was never shown")
+			assert(wait_until_stack({ SCREEN1 }))
-			assert_stack({ SCREEN1 })
 			monarch.show(POPUP1)
-			assert(wait_until_shown(POPUP1), "Popup1 was never shown")
+			assert(wait_until_stack({ SCREEN1, POPUP1 }))
-			assert_stack({ SCREEN1, POPUP1 })
 			monarch.show(POPUP2)
-			assert(wait_until_shown(POPUP2), "Popup2 was never shown")
+			assert(wait_until_stack({ SCREEN1, POPUP1, POPUP2 }))
-			assert_stack({ SCREEN1, POPUP1, POPUP2 })
 			monarch.replace(SCREEN2)
-			assert(wait_until_shown(SCREEN2), "Screen2 was never shown")
+			assert(wait_until_stack({ SCREEN2 }))
-			assert_stack({ SCREEN2 })
 		end)
 
 		it("should replace a popup", function()
 			monarch.show(SCREEN1)
-			assert(wait_until_shown(SCREEN1), "Screen1 was never shown")
+			assert(wait_until_stack({ SCREEN1 }))
-			assert_stack({ SCREEN1 })
 			monarch.show(POPUP1)
-			assert(wait_until_shown(POPUP1), "Popup1 was never shown")
+			assert(wait_until_stack({ SCREEN1, POPUP1 }))
-			assert_stack({ SCREEN1, POPUP1 })
 			monarch.replace(POPUP2)
-			assert(wait_until_shown(POPUP2), "Popup2 was never shown")
+			assert(wait_until_stack({ SCREEN1, POPUP2 }))
-			assert_stack({ SCREEN1, POPUP2 })
 		end)
 
 		it("should replace a pop-up two levels down", function()
 			monarch.show(SCREEN1)
-			assert(wait_until_shown(SCREEN1), "Screen1 was never shown")
+			assert(wait_until_stack({ SCREEN1 }))
-			assert_stack({ SCREEN1 })
 			monarch.show(POPUP1)
-			assert(wait_until_shown(POPUP1), "Popup1 was never shown")
+			assert(wait_until_stack({ SCREEN1, POPUP1 }))
-			assert_stack({ SCREEN1, POPUP1 })
 			monarch.show(POPUP2)
-			assert(wait_until_shown(POPUP2), "Popup2 was never shown")
+			assert(wait_until_stack({ SCREEN1, POPUP1, POPUP2 }))
-			assert_stack({ SCREEN1, POPUP1, POPUP2 })
 			monarch.show(POPUP2, { pop = 2 })
-			assert(wait_until_shown(POPUP2), "Popup2 was never shown")
+			assert(wait_until_stack({ SCREEN1, POPUP2 }))
-			assert_stack({ SCREEN1, POPUP2 })
 		end)
 
 		it("shouldn't over-pop popups", function()
 			monarch.show(SCREEN1)
-			assert(wait_until_shown(SCREEN1), "Screen1 was never shown")
+			assert(wait_until_stack({ SCREEN1 }))
-			assert_stack({ SCREEN1 })
 			monarch.show(POPUP1)
-			assert(wait_until_shown(POPUP1), "Popup1 was never shown")
+			assert(wait_until_stack({ SCREEN1, POPUP1 }))
-			assert_stack({ SCREEN1, POPUP1 })
 			monarch.show(POPUP2, { pop = 10 })
-			assert(wait_until_shown(POPUP2), "Popup2 was never shown")
+			assert(wait_until_stack({ SCREEN1, POPUP2 }))
-			assert_stack({ SCREEN1, POPUP2 })
 		end)
 
 		it("should be able to get the id of the screen at the top and bottom of the stack", function()
@@ -379,7 +346,7 @@ return function()
 			assert(monarch.bottom(-1) == nil)
 						
 			monarch.show(SCREEN1)
-			assert(wait_until_shown(SCREEN1), "Screen1 was never shown")
+			assert(wait_until_stack({ SCREEN1 }))
 			assert(monarch.top() == SCREEN1)
 			assert(monarch.top(0) == SCREEN1)
 			assert(monarch.top(1) == nil)
@@ -388,9 +355,7 @@ return function()
 			assert(monarch.bottom(-1) == nil)
 									
 			monarch.show(SCREEN2)
-			assert(wait_until_hidden(SCREEN1), "Screen1 was never hidden")
+			assert(wait_until_stack({ SCREEN1, SCREEN2 }))
-			assert(wait_until_shown(SCREEN2), "Screen2 was never shown")
-			assert_stack({ SCREEN1, SCREEN2 })
 			assert(monarch.top(0) == SCREEN2)
 			assert(monarch.top(-1) == SCREEN1)
 			assert(monarch.bottom(0) == SCREEN1)
@@ -399,8 +364,8 @@ return function()
 
 		it("should be busy while transition is running", function()
 			monarch.show(TRANSITION1)
-			assert(wait_until_shown(TRANSITION1), "Transition1 was never shown")
 			assert(monarch.is_busy())
+			assert(wait_until_visible(TRANSITION1), "Transition1 was never shown")
 			assert(wait_until_not_busy())
 		end)
 
@@ -418,7 +383,7 @@ return function()
 			-- previously a call to preload() while also showing a screen would
 			-- lock up monarch. See issue #32
 			monarch.preload(TRANSITION1)
-			assert(wait_until_shown(TRANSITION1), "Transition1 was never shown")
+			assert(wait_until_visible(TRANSITION1), "Transition1 was never shown")
 		end)
 		
 		it("should be able to notify listeners of navigation events", function()
@@ -428,11 +393,11 @@ return function()
 			monarch.add_listener(URL2)
 
 			monarch.show(SCREEN1)
+			assert(wait_until_not_busy())
 			assert(mock_msg.messages(URL1)[1].message_id == monarch.SCREEN_TRANSITION_IN_STARTED)
 			assert(mock_msg.messages(URL1)[1].message.screen == SCREEN1)
 			assert(mock_msg.messages(URL2)[1].message_id == monarch.SCREEN_TRANSITION_IN_STARTED)
 			assert(mock_msg.messages(URL2)[1].message.screen == SCREEN1)
-			assert(wait_until_not_busy())
 			assert(mock_msg.messages(URL1)[2].message_id == monarch.SCREEN_TRANSITION_IN_FINISHED)
 			assert(mock_msg.messages(URL1)[2].message.screen == SCREEN1)
 			assert(mock_msg.messages(URL2)[2].message_id == monarch.SCREEN_TRANSITION_IN_FINISHED)
@@ -444,38 +409,38 @@ return function()
 
 			assert(#mock_msg.messages(URL1) == 6)
 			assert(#mock_msg.messages(URL2) == 2)
-			assert(mock_msg.messages(URL1)[3].message_id == monarch.SCREEN_TRANSITION_OUT_STARTED)
+			assert(mock_msg.messages(URL1)[3].message_id == monarch.SCREEN_TRANSITION_IN_STARTED)
-			assert(mock_msg.messages(URL1)[3].message.screen == SCREEN1)
+			assert(mock_msg.messages(URL1)[3].message.screen == SCREEN2)
-			assert(mock_msg.messages(URL1)[4].message_id == monarch.SCREEN_TRANSITION_IN_STARTED)
+			assert(mock_msg.messages(URL1)[4].message_id == monarch.SCREEN_TRANSITION_IN_FINISHED)
 			assert(mock_msg.messages(URL1)[4].message.screen == SCREEN2)
-			assert(mock_msg.messages(URL1)[5].message_id == monarch.SCREEN_TRANSITION_IN_FINISHED)
+			assert(mock_msg.messages(URL1)[5].message_id == monarch.SCREEN_TRANSITION_OUT_STARTED)
-			assert(mock_msg.messages(URL1)[5].message.screen == SCREEN2)
+			assert(mock_msg.messages(URL1)[5].message.screen == SCREEN1)
 			assert(mock_msg.messages(URL1)[6].message_id == monarch.SCREEN_TRANSITION_OUT_FINISHED)
 			assert(mock_msg.messages(URL1)[6].message.screen == SCREEN1)
-						
+
 			monarch.back()
 			assert(wait_until_not_busy())
-						
+
 			assert(#mock_msg.messages(URL1) == 10)
 			assert(#mock_msg.messages(URL2) == 2)
-			assert(mock_msg.messages(URL1)[7].message_id == monarch.SCREEN_TRANSITION_OUT_STARTED)
+			assert(mock_msg.messages(URL1)[7].message_id == monarch.SCREEN_TRANSITION_IN_STARTED)
-			assert(mock_msg.messages(URL1)[7].message.screen == SCREEN2)
+			assert(mock_msg.messages(URL1)[7].message.screen == SCREEN1)
-			assert(mock_msg.messages(URL1)[8].message_id == monarch.SCREEN_TRANSITION_IN_STARTED)
+			assert(mock_msg.messages(URL1)[8].message_id == monarch.SCREEN_TRANSITION_IN_FINISHED)
 			assert(mock_msg.messages(URL1)[8].message.screen == SCREEN1)
-			assert(mock_msg.messages(URL1)[9].message_id == monarch.SCREEN_TRANSITION_IN_FINISHED)
+			assert(mock_msg.messages(URL1)[9].message_id == monarch.SCREEN_TRANSITION_OUT_STARTED)
-			assert(mock_msg.messages(URL1)[9].message.screen == SCREEN1)
+			assert(mock_msg.messages(URL1)[9].message.screen == SCREEN2)
 			assert(mock_msg.messages(URL1)[10].message_id == monarch.SCREEN_TRANSITION_OUT_FINISHED)
 			assert(mock_msg.messages(URL1)[10].message.screen == SCREEN2)
 		end)
-
+		
 		it("should be able to show a screen even while it is preloading", function()
 			monarch.show(SCREEN_PRELOAD, nil, { count = 1 })
-			assert(wait_until_shown(SCREEN_PRELOAD), "Screen_preload was never shown")
+			assert(wait_until_visible(SCREEN_PRELOAD), "Screen_preload was never shown")
 		end)
 		
 		it("should be able to preload a screen and always keep it loaded", function()
 			monarch.show(SCREEN_PRELOAD)
-			assert(wait_until_shown(SCREEN_PRELOAD), "Screen_preload was never shown")
+			assert(wait_until_visible(SCREEN_PRELOAD), "Screen_preload was never shown")
 			monarch.back()
 			assert(wait_until_hidden(SCREEN_PRELOAD), "Screen_preload was never hidden")
 			assert(monarch.is_preloaded(SCREEN_PRELOAD))
@@ -483,12 +448,12 @@ return function()
 
 		it("should be able to reload a preloaded screen", function()
 			monarch.show(SCREEN_PRELOAD, nil, { count = 1 })
-			assert(wait_until_shown(SCREEN_PRELOAD), "Screen_preload was never shown")
+			assert(wait_until_visible(SCREEN_PRELOAD), "Screen_preload was never shown")
 			-- first time the screen gets loaded it will increment the count
 			assert(monarch.data(SCREEN_PRELOAD).count == 2)
 
 			monarch.show(SCREEN_PRELOAD, { clear = true, reload = true }, { count = 1 })
-			assert(wait_until_shown(SCREEN_PRELOAD), "Screen_preload was never shown")
+			assert(wait_until_visible(SCREEN_PRELOAD), "Screen_preload was never shown")
 			-- second time the screen gets shown it will be reloaded and increment the count
 			assert(monarch.data(SCREEN_PRELOAD).count == 2)
 		end)
@@ -499,13 +464,14 @@ return function()
 			_G.focus1_lost = nil
 
 			monarch.show(SCREEN1)
-			assert(wait_until_shown(SCREEN1), "Screen1 was never shown")
+			assert(wait_until_stack({ SCREEN1 }))
 			monarch.show(FOCUS1)
-			assert(wait_until_shown(FOCUS1), "Screen1 was never shown")
+			assert(wait_until_stack({ SCREEN1, FOCUS1 }))
+			assert(wait_until_visible(FOCUS1))
 			assert(_G.focus1_gained)
 			monarch.show(SCREEN1)
-			assert(wait_until_shown(SCREEN1), "Screen1 was never shown")
+			assert(wait_until_stack({ SCREEN1, FOCUS1, SCREEN1 }))
-			assert(wait_until_hidden(FOCUS1), "Focus1 was never hidden")
+			assert(wait_until_hidden(FOCUS1))
 			assert(_G.focus1_lost)
 		end)
 
@@ -516,14 +482,14 @@ return function()
 
 			-- proxy screen
 			monarch.show(SCREEN1)
-			wait_until_shown(SCREEN1)
+			wait_until_visible(SCREEN1)
 			assert(monarch.post(SCREEN1, "foobar"), "Expected monarch.post() to return true")
 			cowait(0.1)
 			assert(_G.screen1_foobar, "Screen1 never received a message")
 
 			-- factory screen
 			monarch.show(SCREEN2)
-			wait_until_shown(SCREEN2)
+			wait_until_visible(SCREEN2)
 			assert(monarch.post(SCREEN2, "foobar"), "Expected monarch.post() to return true")
 			cowait(0.1)
 			assert(_G.screen2_foobar, "Screen2 never received a message")
@@ -536,7 +502,7 @@ return function()
 
 			-- proxy screen
 			monarch.show(SCREEN1)
-			wait_until_shown(SCREEN1)
+			wait_until_visible(SCREEN1)
 			assert(monarch.post(SCREEN1, "foobar", { foo = "bar" }), "Expected monarch.post() to return true")
 			cowait(0.1)
 			assert(_G.screen1_foobar, "Screen1 never received a message")
@@ -544,7 +510,7 @@ return function()
 			
 			-- factory screen
 			monarch.show(SCREEN2)
-			wait_until_shown(SCREEN2)
+			wait_until_visible(SCREEN2)
 			assert(monarch.post(SCREEN2, "foobar", { foo = "bar" }), "Expected monarch.post() to return true")
 			cowait(0.1)
 			assert(_G.screen2_foobar, "Screen2 never received a message")
@@ -556,9 +522,9 @@ return function()
 			_G.screen1_foobar = nil
 
 			monarch.show(SCREEN1)
-			wait_until_shown(SCREEN1)
 			monarch.show(SCREEN2)
-			wait_until_shown(SCREEN2)
+			assert(wait_until_stack({ SCREEN1, SCREEN2 }))
+			assert(wait_until_hidden(SCREEN1))
 			local ok, err = monarch.post(SCREEN1, "foobar")
 			assert(not ok and err, "Expected monarch.post() to return false plus an error message")
 			cowait(0.1)
@@ -568,7 +534,7 @@ return function()
 
 		it("should not be able to post messages to proxy screens without a receiver url", function()
 			monarch.show(POPUP1)
-			wait_until_shown(POPUP1)
+			wait_until_visible(POPUP1)
 			local ok, err = monarch.post(POPUP1, "foobar")
 			assert(not ok and err, "Expected monarch.post() to return false plus an error message")
 		end)

test/test_transitions.lua

@@ -8,6 +8,12 @@ local easing = require "monarch.transitions.easings"
 
 return function()
 
+local function wait_timeout(fn, ...)
+	local args = { ... }
+	cowait(function() return fn(unpack(args)) end, 5)
+	return fn(...)
+end
+
 describe("transitions", function()
 	before(function()
 		mock_msg.mock()
@@ -22,6 +28,28 @@ describe("transitions", function()
 	end)
 
 
+	it("should replace an existing transition with a new one", function()
+		local one = false
+		function dummy_transition1(node, to, easing, duration, delay, cb)
+			one = true
+		end
+		local two = false
+		function dummy_transition2(node, to, easing, duration, delay, cb)
+			two = true
+		end
+		
+		local node = gui.new_box_node(vmath.vector3(), vmath.vector3(100, 100, 0))
+		local duration = 2
+		local t = transitions.create(node)
+		t.show_in(dummy_transition1, easing.OUT, duration, delay or 0)
+		t.show_in(dummy_transition2, easing.OUT, duration, delay or 0)
+		t.handle(monarch.TRANSITION.SHOW_IN)
+		
+		wait_timeout(function() return one or two end)
+		assert(two)
+		assert(not one)
+	end)
+
 	it("should replay and immediately finish on layout change", function()
 		function dummy_transition(node, to, easing, duration, delay, cb)
 			print("dummy transition")