class Rabbit::Frame

# File lib/rabbit/frame.rb, line 53
def initialize(canvas)
  @canvas = canvas
  @geometry = nil
  @stack = nil
  @terminal = nil
  @running = true
end

# File lib/rabbit/frame.rb, line 61
def destroyed?
  @window.nil? or @window.destroyed?
end

# File lib/rabbit/frame.rb, line 84
def fullscreen
  @window.fullscreen
end

# File lib/rabbit/frame.rb, line 100
def fullscreen?
  @fullscreen
end

# File lib/rabbit/frame.rb, line 121
def fullscreen_available?
  true
end

# File lib/rabbit/frame.rb, line 76
def height
  @window.size[1]
end

# File lib/rabbit/frame.rb, line 125
def iconify_available?
  true
end

# File lib/rabbit/frame.rb, line 142
def in_terminal?
  return false if @terminal.nil?
  @stack.visible_child_name == "terminal"
end

# File lib/rabbit/frame.rb, line 112
def init_gui(width, height, main_window, window_type=nil)
  init_window(width, height, window_type)
  @fullscreen = false
  @main_window = main_window
  @terminal.show if @terminal
  @stack.show if @stack
  @canvas.post_init_gui
end

# File lib/rabbit/frame.rb, line 104
def main_window?
  @main_window
end

# File lib/rabbit/frame.rb, line 80
def parse(source, callback=nil, &block)
  @canvas.parse(source, callback, &block)
end

# File lib/rabbit/frame.rb, line 65
def quit
  @running = false
  @window.destroy unless destroyed?
  @window = nil
  true
end

# File lib/rabbit/frame.rb, line 92
def toggle_fullscreen
  if fullscreen?
    unfullscreen
  else
    fullscreen
  end
end

# File lib/rabbit/frame.rb, line 129
def toggle_terminal
  return if @terminal.nil?
  if @stack.visible_child_name == "terminal"
    if @stack.respond_to?(:pages)
      @stack.visible_child = @stack.pages[0].child
    else
      @stack.visible_child = @stack.children[0]
    end
  else
    @stack.visible_child_name = "terminal"
  end
end

# File lib/rabbit/frame.rb, line 88
def unfullscreen
  @window.unfullscreen
end

# File lib/rabbit/frame.rb, line 108
def update_title(new_title)
  @window.title = Utils.unescape_title(new_title)
end

# File lib/rabbit/frame.rb, line 72
def width
  @window.size[0]
end

# File lib/rabbit/frame.rb, line 227
def init_stack
  @stack = Gtk::Stack.new
  if Gtk::StackTransitionType.const_defined?(:ROTATE_LEFT_RIGHT)
    @stack.transition_type = :rotate_left_right
  else
    @stack.transition_type = :slide_left_right
  end
  @window.child = @stack
end

# File lib/rabbit/frame.rb, line 264
def init_terminal
  @terminal = Vte::Terminal.new
  # TODO: Support theme
  terminal_font_description = ENV["RABBIT_TERMINAL_FONT_DESCRIPTION"]
  if terminal_font_description
    @terminal.font_desc =
      Pango::FontDescription.new(terminal_font_description)
  end
  terminal_color_foreground = ENV["RABBIT_TERMINAL_COLOR_FOREGROUND"]
  if terminal_color_foreground
    @terminal.color_foreground = terminal_color_foreground
  end
  terminal_color_background = ENV["RABBIT_TERMINAL_COLOR_BACKGROUND"]
  if terminal_color_background
    @terminal.color_background = terminal_color_background
  end
  @terminal.enable_sixel = true if @terminal.respond_to?(:enable_sixel=)
  @stack.add_named(@terminal, "terminal")
  pid = nil
  in_terminal = false
  @stack.signal_connect("notify::visible-child-name") do |_, param|
    if @stack.visible_child_name == "terminal"
      if @running
        pid = @terminal.spawn if pid.nil?
        @canvas.pre_terminal unless in_terminal
        in_terminal = true
      end
    else
      @canvas.post_terminal if in_terminal
      in_terminal = false
    end
  end
  @terminal.signal_connect(:child_exited) do
    pid = nil
    if @stack.visible_child_name == "terminal"
      @canvas.activate("ToggleTerminal")
    end
  end
end

# File lib/rabbit/frame.rb, line 148
def init_window(width, height, window_type=nil)
  window_type ||= :toplevel
  @window = Gtk::ApplicationWindow.new(::Rabbit.application)
  @window.set_default_size(width, height)
  @window.parse_geometry(@geometry) if @geometry
  init_stack
  set_window_signal_destroy
  setup_dnd
  @window.show # @window.surface is only available after @window.show.
  if Gtk::Version::MAJOR < 4
    @window.signal_connect(:configure_event) do |_, event|
      GLib::Idle.add do
        width = @stack.allocated_width
        height = @stack.allocated_height
        @canvas.renderer.update_size(width, height)
        GLib::Source::REMOVE
      end
      false
    end
    @window.signal_connect(:window_state_event) do |widget, event|
      if event.changed_mask.fullscreen?
        @fullscreen = event.new_window_state.fullscreen?
        if @fullscreen
          @canvas.fullscreened
        else
          @canvas.unfullscreened
        end
      elsif event.changed_mask.iconified?
        if event.new_window_state.iconified?
          @canvas.iconified
        end
      end

      false
    end
  else
    previous_width = nil
    previous_height = nil
    previous_fullscreen = @fullscreen = @window.fullscreen?
    previous_minimized = false
    @surface = @window.surface # This is to guard from GC.
    @surface.signal_connect(:notify) do |surface, param|
      case param.name
      when "width", "height"
        GLib::Idle.add do
          width = @stack.width
          height = @stack.height
          if previous_width != width or previous_height != height
            @canvas.renderer.update_size(width, height)
            previous_width = width
            previous_height = height
          end
          GLib::Source::REMOVE
        end
      when "state"
        state = surface.state
        @canvas.reload_source if state.focused?
        fullscreen = state.fullscreen?
        if previous_fullscreen != fullscreen
          @fullscreen = fullscreen
          if @fullscreen
            @canvas.fullscreened
          else
            @canvas.unfullscreened
          end
          previous_fullscreen = @fullscreen
        end
        minimized = state.minimized?
        if previous_minimized != minimized
          @canvas.iconified if minimized
          previous_minimized = minimized
        end
      end
    end
  end
  @canvas.attach_to(self, @window, @stack)
  init_terminal if defined?(Vte::Terminal)
end

# File lib/rabbit/frame.rb, line 237
def set_window_signal_destroy
  @window.signal_connect("destroy") do
    @canvas.detach
  end
end

# File lib/rabbit/frame.rb, line 243
def setup_dnd
  return if Gtk::Version::MAJOR >= 4 # TODO
  @window.drag_dest_set(:all,
                        [["text/uri-list", 0, 0],
                         ["_NETSCAPE_URL", 0, 0]],
                        :copy)
  @window.signal_connect("drag-data-received") do |*args|
    widget, context, x, y, selection_data, info, time = args
    uri = selection_data.data.chomp
    Gtk.idle_add do
      parse(Source::URI.new(nil, uri))
      false
    end
    Gtk::Drag.finish(context, true, false, time)
  end

  @window.signal_connect("drag-drop") do |widget, context, x, y, time|
    true
  end
end