"atomic component";

// TODO: expose to inspector

var WIDTH = Atomic.graphics.width - 100;
var HEIGHT = Atomic.graphics.height - 100;

var home = "http://www.atomicgameengine.com";

var bookmarks = {
    "Atomic Game Engine" : "http://www.atomicgameengine.com",
    "Google" : "http://www.google.com",
    "YouTube" : "https://www.youtube.com"
};

// Create the UI view
var view = new Atomic.UIView();

var newTabButton;
var newTabContent;

// WebBrowser example component
exports.component = function(self) {

  var window = new Atomic.UIWindow();
  window.text = "UIWebView Example Browser";
  window.setSize(WIDTH, HEIGHT);

  var mainLayout = new Atomic.UILayout();
  mainLayout.axis = Atomic.UI_AXIS_Y;
  mainLayout.layoutDistribution = Atomic.UI_LAYOUT_DISTRIBUTION_GRAVITY;
  mainLayout.gravity = Atomic.UI_GRAVITY_ALL;

  var tabContainer = new Atomic.UITabContainer();
  tabContainer.gravity = Atomic.UI_GRAVITY_ALL;

  newTabButton = new Atomic.UIButton();
  newTabButton.text = " ";
  newTabButton.onClick = function() {
    createBrowserTab(tabContainer, home);
    return true;
  }

  newTabContent = new Atomic.UIWidget();

  tabContainer.tabLayout.addChild(newTabButton);
  tabContainer.contentRoot.addChild(newTabContent);

  // change id, so we don't initiate a page change when clicked
  newTabButton.id = "NewTabButton";

  // create a startup with our home address
  createBrowserTab(tabContainer, home);

  // Add to main UI view and center
  mainLayout.addChild(tabContainer);
  window.addChild(mainLayout);
  view.addChild(window);
  window.center();

}

function createBookmarks(webView, layout,  bookmarks) {

  for (var text in bookmarks) {

    var button = new Atomic.UIButton();
    button.text = text;
    button.skinBg = "TBButton.flat";
    layout.addChild(button);

    var webClient = webView.webClient;
    (function() {
      var url = bookmarks[text];
      button.onClick = function() { webClient.loadURL(url); }
    })();
  }
}

function createBrowserTab(tabContainer, url) {

  var contentRoot = tabContainer.contentRoot;
  var tabLayout = tabContainer.tabLayout;

  var layout = new Atomic.UILayout();
  layout.axis = Atomic.UI_AXIS_Y;
  layout.layoutDistribution = Atomic.UI_LAYOUT_DISTRIBUTION_GRAVITY;
  layout.gravity = Atomic.UI_GRAVITY_ALL;
  layout.spacing = 16;

  var tabButton = new Atomic.UIButton();
  tabButton.text = "...";
  tabButton.squeezable = true;
  tabButton.skinBg = "TBButton.flat";
  // tabButtons with URL text by default open the URL upon clicking them
  // we don't want this behaviour
  tabButton.urlEnabled = false;
  tabLayout.addChildBefore(tabButton, newTabButton);

  // address bar
  var addressLayout = new Atomic.UILayout();
  addressLayout.gravity = Atomic.UI_GRAVITY_ALL;
  addressLayout.layoutDistribution = Atomic.UI_LAYOUT_DISTRIBUTION_GRAVITY;

  // navigation buttons
  var backButton = new Atomic.UIButton();
  backButton.text = "Back";
  addressLayout.addChild(backButton);

  var fwdButton = new Atomic.UIButton();
  fwdButton.text = "Forward";
  addressLayout.addChild(fwdButton);

  var reloadButton = new Atomic.UIButton();
  reloadButton.text = "Reload";
  addressLayout.addChild(reloadButton);

  var homeButton = new Atomic.UIButton();
  homeButton.text = "Home";
  addressLayout.addChild(homeButton);

  var addressEdit = new Atomic.UIEditField();
  addressEdit.gravity = Atomic.UI_GRAVITY_ALL;
  addressLayout.addChild(addressEdit);

  layout.addChild(addressLayout);

  var webView = new WebView.UIWebView(url);
  var webClient = webView.webClient;

  // bookmark bar
  var bookmarkLayout = new Atomic.UILayout();
  bookmarkLayout.gravity = Atomic.UI_GRAVITY_ALL;

  createBookmarks( webView, bookmarkLayout, bookmarks);

  layout.addChild(bookmarkLayout);
  layout.addChild(webView);
  contentRoot.addChildBefore(layout, newTabContent);

  // initial state
  reloadButton.disable();
  backButton.disable();
  fwdButton.disable();

  // go home
  homeButton.onClick = function() { webClient.loadURL(home)};

  // reload
  reloadButton.onClick = function() { webClient.reload(); };

  // Forward/Back
  fwdButton.onClick = function() { webClient.goForward(); }
  backButton.onClick = function() { webClient.goBack(); }

  // events

  // update the addressEdit at start and stop of url load
  webView.subscribeToEvent(webClient, "WebViewLoadStateChange", function(ev) {

    ev.canGoBack ? backButton.enable() : backButton.disable();
    ev.canGoForward ? fwdButton.enable() : fwdButton.disable();

  });

  // update the addressEdit at start and stop of url load
  webView.subscribeToEvent(webClient, "WebViewAddressChange", function(ev) {

    // we can now reload
    reloadButton.enable();

    addressEdit.text = ev.url;

  });

  webView.subscribeToEvent(webClient, "WebViewTitleChange", function(ev) {

    tabButton.text = ev.title;

  });


}

/*
button_ = new UIButton(context_);
button_->SetText(filename.CString());
button_->SetSqueezable(true);
button_->SetSkinBg("TBButton.flat");
button_->SetValue(1);
editorTabLayout_->AddChild(button_->GetInternalWidget());

TBButton* closebutton = new TBButton();
editorTabLayout_->AddChild(closebutton);
closebutton->SetSkinBg(TBIDC("TBWindow.close"));
closebutton->SetIsFocusable(false);
closebutton->SetID(TBIDC("tabclose"));

*/

// The Web View
//var webView = new WebView.UIWebView("https://ace.c9.io/build/kitchen-sink.html");
//var webView = new WebView.UIWebView("https://store.steampowered.com");
//var webView = new WebView.UIWebView("https://pixlcore.com/demos/webcamjs/demos/basic.html");
//var webView = new WebView.UIWebView("https://getmosh.io/");
//var webView = new WebView.UIWebView("http://www.w3schools.com/tags/tryit.asp?filename=tryhtml_textarea");