Class: FxTwitter::TwitterWindow

Inherits:
Fox::FXMainWindow
  • Object
show all
Includes:
Fox
Defined in:
lib/fxtwitter.rb

Overview

The primary user interface for fxtwitter

Instance Method Summary collapse

Constructor Details

#initialize(app, username, password) ⇒ TwitterWindow

Returns a new instance of TwitterWindow.



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# File 'lib/fxtwitter.rb', line 17

def initialize(app, username, password)
  super(app, "fxtwitter", nil, nil, 
        :opts  => DECOR_TITLE |  DECOR_CLOSE | DECOR_RESIZE, 
        :width => 480)
  @username = username
  @password = password
    
  # Put together UI elements
  @tweet_display = FXText.new(self,
                               :opts => LAYOUT_FIX_WIDTH | LAYOUT_FIX_HEIGHT | 
                                       LAYOUT_FILL_X | LAYOUT_FILL_Y |
                                       TEXT_READONLY | TEXT_WORDWRAP,
                               :width => 480, :height => 200)

  @control_frame = FXHorizontalFrame.new(self)
  @quit_btn      = FXButton.new(@control_frame, "Quit")
  @refresh_btn   = FXButton.new(@control_frame, "Refresh")
  @post_btn      = FXButton.new(@control_frame, "Post")
  FXHorizontalSeparator.new(@control_frame)
  @length_lbl    = FXLabel.new(@control_frame, TWEET_LENGTH.to_s)
  @twitter_input = FXTextField.new(self, 80,
                                   :opts => LAYOUT_FILL_X | TEXTFIELD_ENTER_ONLY,
                                   :width => 450)
  @status_line   = FXStatusLine.new(self)
  @status_line.normalText = "fxtwitter"

  @post_btn.connect(SEL_COMMAND) do |sender, selector, data|
    post_tweet()
  end

  @quit_btn.connect(SEL_COMMAND) do |sender, selecter, data|
    quit_application()
  end

  @refresh_btn.connect(SEL_COMMAND) do |sender, selector, data|
    update_tweets()
  end

  @twitter_input.connect(SEL_CHANGED) do |sender, selector, data|
    @length_lbl.text = (TWEET_LENGTH - data.length).to_s
  end

  @twitter_input.connect(SEL_COMMAND) do |sender, selector, data|
    post_tweet()
  end

  # Set up text styles for the twitter display
  name_style = FXHiliteStyle.from_text(@tweet_display)
  name_style.style = FXText::STYLE_BOLD
  time_style = FXHiliteStyle.from_text(@tweet_display)
  time_style.normalForeColor = FXColor::MidnightBlue
  @tweet_display.styled = true
  @tweet_display.hiliteStyles = [ name_style, time_style ]

  # TODO: Replace global constant with config and/or user input.
  @tweets_updated_at = nil
  @tweets = []
end

Instance Method Details

#connect_to_twitter(login, password) ⇒ Object

Opens a validated connection to the Twitter service.



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# File 'lib/fxtwitter.rb', line 77

def connect_to_twitter(, password)
  @status_line.text = "Connecting #{login} to Twitter"
  return Twitter::Client.new(:login => , :password => password)
end

#create ⇒ Object

Part of the GUI construction code



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# File 'lib/fxtwitter.rb', line 83

def create()
  super
  show(PLACEMENT_SCREEN)
  setup_twitter()
end

#post_tweet ⇒ Object

Submit user text from twitter_input



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# File 'lib/fxtwitter.rb', line 90

def post_tweet()
  tweet_text = @twitter_input.text
  if tweet_text.length > 0 then
    if tweet_text.length <= TWEET_LENGTH then
      @status_line.text = "Posting Tweet..."
      status = Twitter::Status.create(:text => tweet_text, 
                                      :client => @twitter)
      @twitter_input.text = ""
      @length_lbl.text = TWEET_LENGTH.to_s
    else
      message = "Your Tweet must have #{TWEET_LENGTH} or less characters"
      FXMessageBox.warning(self, MBOX_OK, "Tweet too long!", message)
    end
  end
end

#quit_application ⇒ Object

Perform any needed cleanup and exit



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# File 'lib/fxtwitter.rb', line 107

def quit_application()
  exit
end

#setup_twitter ⇒ Object 



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# File 'lib/fxtwitter.rb', line 111

def setup_twitter()
  if @username and @password then
    @twitter = connect_to_twitter(@username, @password)
    update_tweets()

    # Check for new Tweets every minute
    timeout_duration = 60 * 1000
    @refresh_timeout = app.addTimeout(timeout_duration, :repeat => true) do |sender, selector, data|
      update_tweets()
    end
  else
    # TODO: Login view
    raise "Username and password required. fxtwitter --help for usage"
  end
end

#update_tweets ⇒ Object 



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# File 'lib/fxtwitter.rb', line 127

def update_tweets()
  this_load = Time.now
  @status_line.text = "#{this_load}: Updating Tweets..."
  begin
    if @tweets and @tweets_updated_at then
      tweets = @twitter.timeline_for(:friends, :since => @tweets_updated_at)
      @tweets_updated_at = Time.now
    else
      tweets = @twitter.timeline_for(:friends)
      @tweets_updated_at = this_load
    end
  rescue Twitter::RESTError => e
    if e.message == "Not Modified" then
      @status_line.normalText = "#{this_load}: No new Tweets"
      return
    else
      raise e
    end
  end
  @tweets = tweets
  @tweets_updated_at = this_load
  @status_line.normalText = "#{@tweets_updated_at}: #{@tweets.length} new Tweets"

  # Now that we have new Tweets, display them.
  @tweets.reverse.each do |tweet|
    created_at = tweet.created_at.strftime("%I:%M %p")
    screen_name = CGI::unescapeHTML(tweet.user.screen_name)
    text = ": #{CGI::unescapeHTML(tweet.text)} -- "
    @tweet_display.appendStyledText(screen_name, 1)
    @tweet_display.appendText(text)
    @tweet_display.appendStyledText(created_at, 2)
    @tweet_display.appendStyledText("\n")
    @tweet_display.makePositionVisible(@tweet_display.cursorPos)
  end
end