Class: TinyWebBrowser::Browser

Inherits:
Object
  • Object
show all
Defined in:
lib/tiny_web_browser/browser.rb

Instance Method Summary collapse

Constructor Details

#initialize(uri) ⇒ Browser

Returns a new instance of Browser.



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# File 'lib/tiny_web_browser/browser.rb', line 8

def initialize(uri)
  @browser_box = Gtk::VBox.new
  @notebook = Gtk::Notebook.new

  @shift_pressed = false
  @ctrl_pressed = false
  @g_pressed_last = false

  @tabbar = Gtk::VBox.new
  @tabbar_up = Gtk::HBox.new
  @go_back_button = Gtk::Button.new('戻る')
  @go_forward_button = Gtk::Button.new('進む')
  @uri_entry = Gtk::Entry.new
  @open_uri_button = Gtk::Button.new('開く')
  @add_tab_buttong = Gtk::Button.new('新規')
  @close_tab_button = Gtk::Button.new('閉じる')
  @search_entry = Gtk::Entry.new
  @last_event = nil

  @search_entry.signal_connect('changed') do |widget|
    current_webview.search_text(@search_entry.text, false, true, true)
  end
  @search_entry.signal_connect('activate') do |widget|
    @notebook.grab_focus
  end

  @notebook.signal_connect('key-press-event') do |widget, event|
    #puts "notebook #{Gdk::Keyval.to_name(event.keyval)} pressed"
    #puts "notebook #{Gdk::Keyval.to_unicode(event.keyval)} pressed"
    case event.keyval
    when Gdk::Keyval::GDK_KEY_minus
      current_webview.zoom_out
    when Gdk::Keyval::GDK_KEY_plus
      current_webview.zoom_in
    when Gdk::Keyval::GDK_KEY_0
      current_webview.set_zoom_level(1.0)
    when Gdk::Keyval::GDK_KEY_t
      if @last_event != nil
        if @last_event.keyval == Gdk::Keyval::GDK_KEY_g
          next_page
        else
          add_page(uri)
        end
      else
        add_page(uri)
      end
    when Gdk::Keyval::GDK_KEY_T
      if @last_event != nil
        if @last_event.keyval == Gdk::Keyval::GDK_KEY_g
          prev_page
        end
      end
    when Gdk::Keyval::GDK_KEY_g
      if @last_event != nil
        if @last_event.keyval == Gdk::Keyval::GDK_KEY_g
          current_page.dom_element.set_scroll_top(0)
        end
      end
    when Gdk::Keyval::GDK_KEY_G
      current_page.dom_element.set_scroll_top(current_page.dom_element.scroll_height)
    when Gdk::Keyval::GDK_KEY_f
      if @ctrl_pressed
        scroll_top = current_page.dom_element.scroll_top
        current_page.dom_element.set_scroll_top(scroll_top + current_page.dom_element.client_height)
      end
    when Gdk::Keyval::GDK_KEY_b
      if @ctrl_pressed
        scroll_top = current_page.dom_element.scroll_top
        current_page.dom_element.set_scroll_top(scroll_top - current_page.dom_element.client_height)
      end
    when Gdk::Keyval::GDK_KEY_d
      if @ctrl_pressed
        scroll_top = current_page.dom_element.scroll_top
        current_page.dom_element.set_scroll_top(scroll_top + current_page.dom_element.client_height/2)
      else
        close_current_page
      end
    when Gdk::Keyval::GDK_KEY_u
      if @ctrl_pressed
        scroll_top = current_page.dom_element.scroll_top
        current_page.dom_element.set_scroll_top(scroll_top - current_page.dom_element.client_height/2)
      end
    when Gdk::Keyval::GDK_KEY_r
      current_webview.reload
    when Gdk::Keyval::GDK_KEY_i
      @uri_entry.select_region(0, -1)
      @uri_entry.grab_focus
    when Gdk::Keyval::GDK_KEY_h
      scroll_left = current_page.dom_element.scroll_left
      current_page.dom_element.set_scroll_left(scroll_left - 15)
    when Gdk::Keyval::GDK_KEY_l
      scroll_left = current_page.dom_element.scroll_left
      current_page.dom_element.set_scroll_left(scroll_left + 15)
    when Gdk::Keyval::GDK_KEY_j
      scroll_top = current_page.dom_element.scroll_top
      current_page.dom_element.set_scroll_top(scroll_top + 15)
    when Gdk::Keyval::GDK_KEY_k
      scroll_top = current_page.dom_element.scroll_top
      current_page.dom_element.set_scroll_top(scroll_top - 15)
    when Gdk::Keyval::GDK_KEY_slash
      @search_entry.grab_focus
    when Gdk::Keyval::GDK_KEY_n
      if @ctrl_pressed
        next_page
      else
        current_webview.search_text(@search_entry.text, false, true, true)
      end
    when Gdk::Keyval::GDK_KEY_N
      current_webview.search_text(@search_entry.text, false, false, true)
    when Gdk::Keyval::GDK_KEY_H
      current_webview.go_back
    when Gdk::Keyval::GDK_KEY_L
      current_webview.go_forward
    when Gdk::Keyval::GDK_KEY_s
      x, y, width, height, depth = window.window.geometry
      pixbuf = Gdk::Pixbuf.from_drawable(nil,
                                         window.window,
                                         0, 0,
                                         width, height)
      pixbuf.save("screenshot-#{Time.now.strftime("%Y%m%d%H%M%S")}.png", "png")
    when Gdk::Keyval::GDK_KEY_Shift_L, Gdk::Keyval::GDK_KEY_Shift_R
      @shift_pressed = true
    when Gdk::Keyval::GDK_KEY_Control_L, Gdk::Keyval::GDK_KEY_Control_R
      @ctrl_pressed = true
    when Gdk::Keyval::GDK_KEY_p
      if @ctrl_pressed
        prev_page
      end
    when Gdk::Keyval::GDK_KEY_q
      if @ctrl_pressed
        Gtk.main_quit
      end
    end

    if Gdk::Keyval.to_unicode(event.keyval) != 0
      @last_event = event
    end
  end

  @notebook.signal_connect('key-release-event') do |widget, event|
    #puts "notebook #{Gdk::Keyval.to_name(event.keyval)} released"
    case event.keyval
    when Gdk::Keyval::GDK_KEY_Shift_L, Gdk::Keyval::GDK_KEY_Shift_R
      @shift_pressed = false
    when Gdk::Keyval::GDK_KEY_Control_L, Gdk::Keyval::GDK_KEY_Control_R
      @ctrl_pressed = false
    end
  end

  @notebook.signal_connect('switch_page') do |notebook, page, page_num|
    puts_at_uri_entry(page_num)
  end

  @go_back_button.signal_connect('clicked') do
    current_webview.go_back
  end
  @go_forward_button.signal_connect('clicked') do
    current_webview.go_forward
  end
  @open_uri_button.signal_connect('clicked') do
    if @uri_entry.text == ''
      current_webview.load_uri(uri)
    else
      current_webview.load_uri(@uri_entry.text)
    end
  end


  #@uri_entry.signal_connect('grab-focus') do |widget, event|
  #  puts 'grab-focus'
  #  @uri_entry.select_region(0, -1)
  #  #@notebook.grab_focus
  #end

  @uri_entry.signal_connect('activate') do |widget, event|
    if (@uri_entry.text =~ /\./) and !(@uri_entry.text =~ /\:\/\//) and (('http://' + @uri_entry.text) =~ URI::regexp)
      open_page('http://' + @uri_entry.text)
    elsif @uri_entry.text =~ URI::regexp
      open_page(@uri_entry.text)
    else
      search_at_google(@uri_entry.text)
    end
    @notebook.grab_focus
  end
  @add_tab_buttong.signal_connect('clicked') do
    add_page(uri)
  end
  @close_tab_button.signal_connect('clicked') do
    close_current_page
  end
  @tabbar_up.pack_start(@go_back_button, false)
  @tabbar_up.pack_start(@go_forward_button, false)
  @tabbar_up.pack_start(@uri_entry)
  @tabbar_up.pack_start(@open_uri_button, false)
  @tabbar_up.pack_start(@add_tab_buttong, false)
  @tabbar_up.pack_start(@close_tab_button, false)

  @tabbar.pack_start(@tabbar_up)

  @browser_box.pack_start(@tabbar, false)
  @browser_box.pack_start(@notebook)
  @browser_box.pack_start(@search_entry, false)

  @pages = []
  add_page(uri)
end

Instance Method Details

#add_page(uri) ⇒ Object 



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# File 'lib/tiny_web_browser/browser.rb', line 224

def add_page(uri)
  @pages << BrowserPage.new(uri)
  @notebook.append_page(@pages[@pages.length - 1].get_widget)
  @notebook.show_all
  @notebook.set_page(@notebook.n_pages - 1)
  puts_at_uri_entry

  current_webview.signal_connect('title-changed') do |webview, frame, title|
    puts_at_uri_entry
    if title.length >= 10
      @notebook.set_tab_label_text(webview, title[0, 9] + '…')
    else
      @notebook.set_tab_label_text(webview, title)
    end
  end

  current_webview.signal_connect('create-web-view') do |webview, frame, user_data|
    puts 'create'
    add_page(frame.uri)
  end
  #current_webview.signal_connect('new-window-policy-decision-requested') do |webview, frame, request, navigation_icon, policy_decision, user_data|
  #  puts 'new-window'
  #  add_page(request.uri)
  #end
  current_webview
end

#close_current_page ⇒ Object 



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# File 'lib/tiny_web_browser/browser.rb', line 251

def close_current_page
  close_page(@notebook.page)
  puts_at_uri_entry
end

#close_page(n) ⇒ Object 



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# File 'lib/tiny_web_browser/browser.rb', line 256

def close_page(n)
  if @notebook.n_pages > 1
    @notebook.remove_page(n)
  end
end

#current_page ⇒ Object 



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# File 'lib/tiny_web_browser/browser.rb', line 287

def current_page
  @pages[@notebook.page]
end

#current_webview ⇒ Object 



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# File 'lib/tiny_web_browser/browser.rb', line 283

def current_webview
  @notebook.get_nth_page(@notebook.page)
end

#get_widget ⇒ Object 



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# File 'lib/tiny_web_browser/browser.rb', line 215

def get_widget
  @browser_box
end

#next_page ⇒ Object 



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# File 'lib/tiny_web_browser/browser.rb', line 275

def next_page
  if @notebook.page < @notebook.n_pages - 1
    @notebook.set_page(@notebook.page + 1)
  else
    @notebook.set_page(0)
  end
end

#open_page(uri) ⇒ Object 



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# File 'lib/tiny_web_browser/browser.rb', line 262

def open_page(uri)
  current_webview.load_uri(uri)
  puts_at_uri_entry
end

#prev_page ⇒ Object 



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# File 'lib/tiny_web_browser/browser.rb', line 267

def prev_page
  if @notebook.page > 0
    @notebook.set_page(@notebook.page - 1)
  else
    @notebook.set_page(@notebook.n_pages - 1)
  end
end

#puts_at_uri_entry(page_num = -1)) ⇒ Object 



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# File 'lib/tiny_web_browser/browser.rb', line 297

def puts_at_uri_entry(page_num = -1)
  if page_num < 0
    @uri_entry.set_text(current_webview.uri)
  else
    @uri_entry.set_text(@notebook.get_nth_page(page_num).uri)
  end
end

#search_at_google(query) ⇒ Object 



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# File 'lib/tiny_web_browser/browser.rb', line 291

def search_at_google(query)
  search_uri = 'https://www.google.com/search'
  uri = search_uri + '?q=' + query
  open_page(uri)
end

#show_all ⇒ Object 



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# File 'lib/tiny_web_browser/browser.rb', line 219

def show_all
  @browser_box.show_all
end