126 lines
3.0 KiB
Ruby
126 lines
3.0 KiB
Ruby
module Uh
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module WM
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class Manager
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INPUT_MASK = Events::SUBSTRUCTURE_REDIRECT_MASK
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ROOT_MASK = Events::PROPERTY_CHANGE_MASK |
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Events::SUBSTRUCTURE_REDIRECT_MASK |
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Events::SUBSTRUCTURE_NOTIFY_MASK |
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Events::STRUCTURE_NOTIFY_MASK
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DEFAULT_GEO = Geo.new(0, 0, 320, 240).freeze
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attr_reader :modifier, :display, :clients
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def initialize events, modifier, display = Display.new
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@events = events
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@modifier = modifier
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@display = display
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@clients = []
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end
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def to_io
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IO.new(@display.fileno)
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end
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def connect
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@events.emit :connecting, args: @display
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@display.open
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check_other_wm!
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Display.on_error { |*args| handle_error *args }
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@display.sync false
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@events.emit :connected, args: @display
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@display.root.mask = ROOT_MASK
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end
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def disconnect
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@display.close
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@events.emit :disconnected
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end
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def flush
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@display.flush
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end
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def grab_key keysym, mod = nil
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mod_mask = KEY_MODIFIERS[@modifier]
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mod_mask |= KEY_MODIFIERS[mod] if mod
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@display.grab_key keysym.to_s, mod_mask
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end
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def configure window
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if client = client_for(window)
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client.configure
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else
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geo = @events.emit :configure, args: window
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window.configure_event geo ? geo : DEFAULT_GEO
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end
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end
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def map window
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return if window.override_redirect? || client_for(window)
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@clients << client = Client.new(window)
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@events.emit :manage, args: client
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end
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def unmap window
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return unless client = client_for(window)
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if client.unmap_count > 0
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client.unmap_count -= 1
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else
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@clients.delete client
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@events.emit :unmanage, args: client
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end
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end
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def handle_next_event
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handle @display.next_event
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end
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def handle_pending_events
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handle_next_event while @display.pending?
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end
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def handle event
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@events.emit :xevent, args: event
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return unless respond_to? handler = "handle_#{event.type}".to_sym, true
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send handler, event
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end
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private
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def handle_error *args
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@events.emit :xerror, args: args
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end
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def handle_key_press event
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key_selector = event.modifier_mask & KEY_MODIFIERS[:shift] == 1 ?
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[event.key.to_sym, :shift] :
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event.key.to_sym
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@events.emit :key, *key_selector
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end
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def handle_configure_request event
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configure event.window
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end
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def handle_map_request event
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map event.window
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end
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def handle_unmap_notify event
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unmap event.window
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end
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def client_for window
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@clients.find { |e| e.window == window }
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end
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def check_other_wm!
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Display.on_error { fail OtherWMRunningError }
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@display.listen_events INPUT_MASK
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@display.sync false
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end
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end
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end
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end
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