32 lines
1.1 KiB
GDScript
32 lines
1.1 KiB
GDScript
class_name PopupBackdrop
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extends ColorRect
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## Dims everything behind an open popup and keeps clicks from reaching the buttons
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## under it.
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##
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## The backdrop sits above the rest of its parent and below the popups it belongs to.
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## Popups close themselves when clicked outside, and the backdrop keeps that click from
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## reaching the buttons behind them.
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var _popups: Array[PopupWindow] = []
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## Adds a backdrop to [param parent] and moves [param popups] above it. The backdrop
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## shows while any of them is open.
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static func add_to(parent: Control, popups: Array[PopupWindow]) -> PopupBackdrop:
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var backdrop: PopupBackdrop = PopupBackdrop.new()
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backdrop.name = "PopupBackdrop"
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backdrop.color = Color(0, 0, 0, 0.55)
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backdrop.mouse_filter = Control.MOUSE_FILTER_STOP
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backdrop._popups = popups
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parent.add_child(backdrop)
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backdrop.set_anchors_and_offsets_preset(Control.PRESET_FULL_RECT)
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for popup: PopupWindow in popups:
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parent.move_child(popup, -1)
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popup.visibility_changed.connect(backdrop._update)
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backdrop._update()
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return backdrop
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func _update() -> void:
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visible = _popups.any(func(popup: PopupWindow) -> bool: return popup.visible)
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