provider.lua

local _, addon = ...

local showAzeroth
addon:RegisterOptionCallback('showAzeroth', function(value)
	showAzeroth = value
end)

local provider = CreateFromMixins(WorldMap_WorldQuestDataProviderMixin)
provider:SetMatchWorldMapFilters(true)
provider:SetUsesSpellEffect(true)
provider:SetCheckBounties(true)

-- override GetPinTemplate to use our custom pin
function provider:GetPinTemplate()
	return 'BetterWorldQuestPinTemplate'
end

-- override ShouldOverrideShowQuest method to show pins on continent maps
function provider:ShouldOverrideShowQuest()
	-- just nop so we don't hit the default
end

-- override ShouldShowQuest method to show pins on parent maps
function provider:ShouldShowQuest(questInfo)
	local mapID = self:GetMap():GetMapID()
	if mapID == 947 then
		-- TODO: change option to only show when there's few?
		return showAzeroth
	end

	if WorldQuestDataProviderMixin.ShouldShowQuest(self, questInfo) then -- super
		return true
	end

	local mapInfo = C_Map.GetMapInfo(mapID)
	if mapInfo.mapType == Enum.UIMapType.Continent then
		return true
	end

	return addon:IsChildMap(mapID, questInfo.mapID)
end

-- remove the default provider
for dp in next, WorldMapFrame.dataProviders do
	if not dp.GetPinTemplates and type(dp.GetPinTemplate) == 'function' then
		if dp:GetPinTemplate() == 'WorldMap_WorldQuestPinTemplate' then
			WorldMapFrame:RemoveDataProvider(dp)
			break
		end
	end
end

-- add our own
WorldMapFrame:AddDataProvider(provider)

-- hook into changes
local function updateVisuals()
	-- update pins on changes
	if WorldMapFrame:IsShown() then
		provider:RefreshAllData()

		for pin in WorldMapFrame:EnumeratePinsByTemplate(provider:GetPinTemplate()) do
			pin:RefreshVisuals()
			pin:ApplyCurrentScale()
		end
	end
end

addon:RegisterOptionCallback('mapScale', updateVisuals)
addon:RegisterOptionCallback('parentScale', updateVisuals)
addon:RegisterOptionCallback('zoomFactor', updateVisuals)
addon:RegisterOptionCallback('showAzeroth', updateVisuals)
addon:RegisterOptionCallback('showEvents', updateVisuals)

-- change visibility
local modifier
local function toggleVisibility()
	local state = true
	if modifier == 'ALT' then
		state = not IsAltKeyDown()
	elseif modifier == 'SHIFT' then
		state = not IsShiftKeyDown()
	elseif modifier == 'CTRL' then
		state = not IsControlKeyDown()
	end

	for pin in WorldMapFrame:EnumeratePinsByTemplate(provider:GetPinTemplate()) do
		pin:SetShown(state)
	end
end

WorldMapFrame:HookScript('OnHide', function()
	toggleVisibility()
end)

addon:RegisterOptionCallback('hideModifier', function(value)
	if value == 'NEVER' then
		if addon:IsEventRegistered('MODIFIER_STATE_CHANGED', toggleVisibility) then
			addon:UnregisterEvent('MODIFIER_STATE_CHANGED', toggleVisibility)
		end

		modifier = nil
		toggleVisibility()
	else
		if not addon:IsEventRegistered('MODIFIER_STATE_CHANGED', toggleVisibility) then
			addon:RegisterEvent('MODIFIER_STATE_CHANGED', toggleVisibility)
		end

		modifier = value
	end
end)