Class: TerminalNotes::App

Inherits:
Object
  • Object
show all
Defined in:
lib/terminal-notes.rb

Instance Method Summary collapse

Instance Method Details

#editor ⇒ Object 



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# File 'lib/terminal-notes.rb', line 144

def editor
    ENV['EDITOR'] || DEFAULT_EDITOR
end

#get_context ⇒ Object 



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# File 'lib/terminal-notes.rb', line 130

def get_context
    { mode: @context }
end

#open_file(file) ⇒ Object 



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# File 'lib/terminal-notes.rb', line 134

def open_file(file)
    system(editor, file)
    redraw

    # Hack to redraw focus correctly
    # TODO: Figure out why this works
    set_context :search
    set_context :browse
end

#redraw(resize: false) ⇒ Object

This method can be invoked independent of the wait for keyboard input loop, so explicitly call for a screen update after widgets have been drawn



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# File 'lib/terminal-notes.rb', line 151

def redraw(resize: false)
    return unless @has_initialized

    @widgets.each(&:redraw)
    # @widgets.each do |widget|
        # widget.window.clear
        # @panels.remove(widget.window)
        # widget.draw(resize: resize)
        # @panels.add(widget.window)
    # end

    set_context @context

    @panels.refresh_in_memory
    Rurses.update_screen
end

#set_context(context) ⇒ Object 



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# File 'lib/terminal-notes.rb', line 112

def set_context context
    @context = context

    if @context == :browse
        Rurses.curses.curs_set(0)
        @search_field.unfocus
        @file_list.focus

    elsif @context == :search
        Rurses.curses.curs_set(1)
        @file_list.unfocus
        @search_field.focus

    end

    @info_bar.draw
end

#start(config) ⇒ Object 



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# File 'lib/terminal-notes.rb', line 14

def start(config)
    directory = config[:directory]

    Rurses.program(modes: %i[c_break no_echo keypad]) do |screen|
        @screen = screen

        @widgets = []

        @search_field = SearchField.new(parent: @screen)
        @widgets << @search_field

        @info_bar = InfoBar.new(parent: @screen) { get_context }
        @widgets << @info_bar

        padding = 2

        # file_list_height = screen.size[:lines]
        #                     - @search_field.height
        #                     - @info_bar.height
        #                     - padding
        file_list_height = 40
        @file_list = FileList.new(parent: @screen,
                                  height: file_list_height,
                                  y: @search_field.height + padding,
                                  directory: directory)
        @widgets << @file_list

        # Register the text_field filter as a delegate
        # of the search field
        @search_field.on_text_changed do |pattern|
            @file_list.filter(pattern)
        end

        # Register file open handler
        @file_list.on_file_opened do |file|
            open_file(file)
        end

        # A PanelStack handles how windows are drawn
        # over each other - i.e. overlapping
        #
        # I'm not really using this ability, however, in
        # Rurses, the PanelStack seems to be the only way
        # to delete/deallocate a window completely
        #
        @panels = Rurses::PanelStack.new
        @widgets.each { |widget| @panels.add(widget.window) }
        @panels.refresh_in_memory

        # Events
        # watch_for_resize

        # Set initial state
        set_context :search

        # Actually draw the screen
        # @panels.refresh_in_memory
        Rurses.update_screen

        @has_initialized = true

        loop do
            key = Rurses.get_key

            if @context == :browse
                case key
                when "q", :CTRL_X
                    break # quit
                when "m"
                    @file_list.toggle_matcher
                    @file_list.filter(@search_field.text)

                when "\t", "/"
                    set_context :search
                else
                    @file_list.on_key(key)
                end
            else
                case key
                when :CTRL_X
                    break # quit
                when "\t", :ENTER
                    set_context :browse
                else
                    @search_field.on_key(key)
                end
            end

            # When all the downstream widgets are done updating
            # in-memory, actually redraw the screen
            # @panels.refresh_in_memory
            Rurses.update_screen
        end

        @screen.move_cursor(x: 0, y: 0)
    end
end

#watch_for_resize ⇒ Object 



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# File 'lib/terminal-notes.rb', line 168

def watch_for_resize
    # SIGWINCH
    #   The SIGWINCH signal is sent to a process when its
    #   controlling terminal changes its size (a window change).
    Signal.trap(:SIGWINCH) { redraw(resize: true) }
end