Dusk
0e1c3385e4
Merge the audited TokensWorth-derived modules and ClassicAPI-focused optimizations into the default branch.
97 lines
2.9 KiB
Lua
97 lines
2.9 KiB
Lua
-- Adapted from TokensWorth/ShaguTweaks-mods (MIT, original copyright GryllsAddons).
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local _G = ShaguTweaks.GetGlobalEnv()
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local T = ShaguTweaks.T
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local hooksecurefunc = ShaguTweaks.hooksecurefunc
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local module = ShaguTweaks:register({
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title = T["Cursor Tooltip"],
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description = T["Attaches default tooltips to the cursor."],
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expansions = { ["vanilla"] = true, ["tbc"] = nil },
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category = T["Tooltip & Items"],
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enabled = nil,
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})
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module.enable = function(self)
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if ShaguTweaks.CursorTooltipInstalled then return end
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ShaguTweaks.CursorTooltipInstalled = true
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-- Keep the native helper for non-GameTooltip callers. The feature only
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-- needs to move the normal world/UI GameTooltip and should not unexpectedly
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-- change other tooltip frames that may reuse the same helper.
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local originalDefaultAnchor = ShaguTweaks.CursorTooltipOriginalDefaultAnchor
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or _G.GameTooltip_SetDefaultAnchor
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ShaguTweaks.CursorTooltipOriginalDefaultAnchor = originalDefaultAnchor
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local cursor = CreateFrame("Frame", nil, UIParent)
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cursor:SetWidth(1)
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cursor:SetHeight(1)
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cursor:Hide()
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local following = false
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local lastX, lastY, lastScale
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local function UpdateCursor(force)
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local scale = UIParent:GetEffectiveScale()
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if not scale or scale == 0 then scale = UIParent:GetScale() end
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if not scale or scale == 0 then scale = 1 end
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local x, y = GetCursorPosition()
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-- GetCursorPosition is cheap and required for following the pointer, but
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-- avoid a frame-layout operation while the mouse is completely still.
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if not force and x == lastX and y == lastY and scale == lastScale then
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return
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end
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lastX, lastY, lastScale = x, y, scale
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-- Reusing the same CENTER anchor updates it in place; ClearAllPoints every
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-- rendered frame is unnecessary.
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cursor:SetPoint("CENTER", UIParent, "BOTTOMLEFT", x / scale, y / scale)
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end
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cursor:SetScript("OnUpdate", function()
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if not following or not GameTooltip:IsShown() then
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this:Hide()
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return
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end
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UpdateCursor(false)
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end)
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function _G.GameTooltip_SetDefaultAnchor(tooltip, parent)
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if tooltip ~= GameTooltip then
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return originalDefaultAnchor(tooltip, parent)
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end
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tooltip:SetOwner(parent or UIParent, "ANCHOR_NONE")
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tooltip:ClearAllPoints()
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-- Position once before Show() so there is no first-frame jump from the
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-- cursor frame's default origin.
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UpdateCursor(true)
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tooltip:SetPoint("BOTTOMLEFT", cursor, "TOPRIGHT", 12, 12)
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tooltip:SetClampedToScreen(true)
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tooltip.default = 1
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following = true
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end
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-- Default anchoring normally happens before GameTooltip:Show(). Start the
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-- per-frame cursor tracker only once the tooltip is actually visible.
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hooksecurefunc(GameTooltip, "Show", function()
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if not following then return end
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UpdateCursor(true)
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cursor:Show()
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end)
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hooksecurefunc(GameTooltip, "Hide", function()
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following = false
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cursor:Hide()
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end)
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end
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