104 lines
3.2 KiB
GDScript
104 lines
3.2 KiB
GDScript
class_name TabManager
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extends HFlowContainer
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var tabs: Array[Tab] = []
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var active_tab := 0
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@onready var main: Main = $"../.."
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const TAB = preload("res://Scenes/Tab.tscn")
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const TAB_NORMAL: StyleBoxFlat = preload("res://Scenes/Styles/TabNormal.tres")
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const TAB_HOVER: StyleBoxFlat = preload("res://Scenes/Styles/TabHover.tres")
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const TAB_DEFAULT: StyleBoxFlat = preload("res://Scenes/Styles/TabDefault.tres")
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const TAB_HOVER_DEFAULT: StyleBoxFlat = preload("res://Scenes/Styles/TabHoverDefault.tres")
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const TAB_GRADIENT: GradientTexture2D = preload("res://Scenes/Styles/TabGradient.tres")
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const TAB_GRADIENT_DEFAULT: GradientTexture2D = preload("res://Scenes/Styles/TabGradientDefault.tres")
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@onready var h_box_container: HBoxContainer = $HBoxContainer
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func _ready() -> void:
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tabs.assign(get_tree().get_nodes_in_group("tabs"))
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set_active_tab(0)
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for i in tabs.size():
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tabs[i].tab_pressed.connect(_tab_pressed.bind(i))
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tabs[i].tab_closed.connect(_tab_closed.bind(i))
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func _tab_pressed(index: int) -> void:
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set_active_tab(index)
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func _tab_closed(index: int) -> void:
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tabs.remove_at(index)
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if tabs.is_empty():
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get_tree().quit()
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return
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if index <= active_tab:
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if index == active_tab:
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# Closed tab was active, select right neighbor (or last tab if at end)
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if index >= tabs.size():
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active_tab = tabs.size() - 1
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else:
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active_tab = index
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else:
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# Closed tab was before active tab, shift active index down
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active_tab -= 1
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# Reconnect signals with updated indices
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for i in tabs.size():
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tabs[i].tab_pressed.disconnect(_tab_pressed)
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tabs[i].tab_closed.disconnect(_tab_closed)
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tabs[i].tab_pressed.connect(_tab_pressed.bind(i))
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tabs[i].tab_closed.connect(_tab_closed.bind(i))
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set_active_tab(active_tab)
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func set_active_tab(index: int) -> void:
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# old tab
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tabs[active_tab].is_active = false
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tabs[active_tab].button.add_theme_stylebox_override("normal", TAB_DEFAULT)
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tabs[active_tab].button.add_theme_stylebox_override("pressed", TAB_DEFAULT)
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tabs[active_tab].button.add_theme_stylebox_override("hover", TAB_HOVER_DEFAULT)
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tabs[active_tab].gradient_texture.texture = TAB_GRADIENT_DEFAULT
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# new tab
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tabs[index].is_active = true
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tabs[index].button.add_theme_stylebox_override("normal", TAB_NORMAL)
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tabs[index].button.add_theme_stylebox_override("pressed", TAB_NORMAL)
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tabs[index].button.add_theme_stylebox_override("hover", TAB_NORMAL)
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tabs[index].gradient_texture.texture = TAB_GRADIENT
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active_tab = index
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func create_tab() -> void:
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var index = tabs.size();
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var tab = TAB.instantiate()
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tabs.append(tab)
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tab.tab_pressed.connect(_tab_pressed.bind(index))
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tab.tab_closed.connect(_tab_closed.bind(index))
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h_box_container.add_child(tab)
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set_active_tab(index)
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# WARNING: temporary
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main.render()
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func _input(_event: InputEvent) -> void:
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if Input.is_action_just_pressed("NewTab"):
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create_tab()
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if Input.is_action_just_pressed("CloseTab"):
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tabs[active_tab]._on_close_button_pressed()
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if Input.is_action_just_pressed("NextTab"):
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var next_tab = (active_tab + 1) % tabs.size()
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set_active_tab(next_tab)
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if Input.is_action_just_pressed("PreviousTab"):
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var prev_tab = (active_tab - 1 + tabs.size()) % tabs.size()
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set_active_tab(prev_tab - 1)
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func _on_new_tab_button_pressed() -> void:
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create_tab()
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