reorganize modules

modules/core_widgets/messagebox/messagebox.lua

@@ -0,0 +1,82 @@
+MessageBox = {}
+MessageBox.__index = MessageBox
+
+-- messagebox flags
+MessageBoxOk = 1
+MessageBoxCancel = 2
+
+function MessageBox.create(title, text, flags)
+  local box = {}
+  setmetatable(box, MessageBox)
+
+  -- create messagebox window
+  local window = UI.display('messagebox.otui', { locked = true })
+  window:setTitle(title)
+
+  local label = window:getChildById('messageBoxLabel')
+  label:setStyle('Label')
+  label:setText(text)
+  label:resizeToText()
+
+  -- set window size based on label size
+  window:setWidth(math.max(label:getWidth() + 48, 120))
+  window:setHeight(label:getHeight() + 64)
+  window:updateParentLayout()
+
+  -- setup messagebox first button
+  local buttonRight = window:getChildById('messageBoxRightButton')
+
+  if flags == MessageBoxOk then
+    buttonRight:setText("Ok")
+    box.onOk = EmptyFunction
+    buttonRight.onClick = function()
+      box.onOk()
+      box:destroy()
+    end
+    window.onEnter = buttonRight.onClick
+    window.onEscape = buttonRight.onClick
+  elseif flags == MessageBoxCancel then
+    buttonRight:setText("Cancel")
+    box.onCancel = EmptyFunction
+    buttonRight.onClick = function()
+      box.onCancel()
+      box:destroy()
+    end
+    window.onEnter = buttonRight.onClick
+    window.onEscape = buttonRight.onClick
+  end
+
+  box.window = window
+  return box
+end
+
+function MessageBox:destroy()
+  if self.onDestroy then
+    self.onDestroy()
+    self.onDestroy = nil
+  end
+  if self.window then
+    self.window:destroy()
+    self.window = nil
+  end
+  self.onOk = nil
+  self.onCancel = nil
+end
+
+-- shortcuts for creating message boxes
+function displayMessageBox(title, text, flags)
+  return MessageBox.create(title, text, flags)
+end
+
+function displayErrorBox(title, text)
+  return MessageBox.create(title, text, MessageBoxOk)
+end
+
+function displayInfoBox(title, text)
+  return MessageBox.create(title, text, MessageBoxOk)
+end
+
+function displayCancelBox(title, text)
+  return MessageBox.create(title, text, MessageBoxCancel)
+end
+

modules/core_widgets/messagebox/messagebox.otui

@@ -0,0 +1,21 @@
+Window
+  id: messageBoxWindow
+  anchors.centerIn: parent
+  height: 80
+  width: 120
+
+  Label
+    id: messageBoxLabel
+    anchors.horizontalCenter: parent.horizontalCenter
+    anchors.top: parent.top
+    margin-top: 27
+    margin-bottom : 27
+
+  Button
+    id: messageBoxRightButton
+    anchors.bottom: parent.bottom
+    anchors.right: parent.right
+    margin-right: 10
+    margin-bottom: 10
+    width: 64
+    visible: true