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UIPopupMenu = extends(UIWidget)
local currentMenu
function UIPopupMenu.create()
local menu = UIPopupMenu.internalCreate()
local layout = UIVerticalLayout.create(menu)
layout:setFitChildren(true)
menu:setLayout(layout)
return menu
end
function UIPopupMenu:display(pos)
-- don't display if not options was added
if self:getChildCount() == 0 then
self:destroy()
return
end
if currentMenu then
currentMenu:destroy()
end
rootWidget:addChild(self)
self:setPosition(pos)
self:grabMouse()
self:grabKeyboard()
currentMenu = self
end
function UIPopupMenu:onGeometryChange()
self:bindRectToParent()
end
function UIPopupMenu:addOption(optionName, optionCallback)
local optionWidget = createWidget(self:getStyleName() .. 'Button', self)
local lastOptionWidget = self:getLastChild()
optionWidget.onClick = function(self)
optionCallback()
self:getParent():destroy()
end
optionWidget:setText(optionName)
local width = optionWidget:getTextSize().width + optionWidget:getMarginLeft() + optionWidget:getMarginRight() + 6
self:setWidth(math.max(self:getWidth(), width))
end
function UIPopupMenu:addSeparator()
createWidget(self:getStyleName() .. 'Separator', self)
end
function UIPopupMenu:onDestroy()
if currentMenu == self then
currentMenu = nil
end
end
function UIPopupMenu:onMousePress(mousePos, mouseButton)
-- clicks outside menu area destroys the menu
if not self:containsPoint(mousePos) then
self:destroy()
end
return true
end
function UIPopupMenu:onKeyPress(keyCode, keyboardModifiers)
if keyCode == KeyEscape then
self:destroy()
return true
end
return false
end
-- close all menus when the window is resized
local function onRootGeometryUpdate()
if currentMenu then
currentMenu:destroy()
end
end
connect(rootWidget, { onGeometryChange = onRootGeometryUpdate} )