var preLoadBookmarksDone=0;

function calcToolbarPopAnchorOffset(anchoredSnippet,

                                    anchorToSnippet,

                                    xCenterOffset,

                                    yBotGap)

{

    //

    // For popup-chrome (menu, zoomBtn) they are aligned by default

    // to the upper left-hand corners.

    //

    // This will calculate the offset needed to center the popup above the

    // button, or make it slightly off-center

    //

    // xCenterOffset = make x param this much off center

    // yBotGap = how much gap should there be between top of anchorTo,

    //           and bottom of anchored

    //

    anchorToGeom = anchorToSnippet.getGeometry();

    anchoredGeom = anchoredSnippet.getGeometry();

    xOffset = -(0.5 * anchoredGeom.width) +

        (0.5 * anchorToGeom.width) +

        xCenterOffset;

    yOffset = -anchoredGeom.height - yBotGap;

    return([xOffset,yOffset]);

}

// Display the super-page with the given name and path.

function showSuperPage(pageName, path) {

    if (window.views.WebView[pageName] == undefined) {

        window.views.WebView.createSuperPage(pageName, true);

    		window.views.WebView[pageName].load(chrome.baseDirectory + path);

    }

    if (!window.views.WebView.bedrockTiledBackingStoreEnabled())

        window.views.WebView.zoomFactor = 1.0;

    //window.views.WebView.showSuperPage(pageName);

    window.ViewStack.switchView(pageName, "WebView");

    if (!window.views.WebView.bedrockTiledBackingStoreEnabled())

        window.views.WebView.touchNav.doubleClickEnabled = false;

}

function chrome_showBookmarksView() {

    showSuperPage("BookmarkTreeView", "bookmarkview.superpage/BookmarkView.html");

}

function chrome_showHistoryView() {

    showSuperPage("BookmarkHistoryView", "historyview.superpage/historyView.html");

}

function chrome_showWindowsView() {

    window.snippets.ZoomBarId.hide(); // hide Zoom Bar while showing windows view

    window.snippets.MostVisitedViewId.hide();

    window.ViewStack.switchView("WindowView", "WebView");

}

function chrome_showSettingsView() {

    showSuperPage("SettingsView", "settingsview.superpage/SettingsView.html");

}

function chrome_showBasicMenu() {

    cm_TheContextMenu.show(viewMenu_getWebViewContextMenuData());

}

function chrome_addBookmark() {

    launchBookmarkDialog(window.pageController.currentDocTitle,window.pageController.currentDocUrl,0);

}

function chrome_cancelMenu() {

    cm_TheContextMenu.cancel();

}

// Center the given snippet on-screen.

function centerSnippet(snippet) {

    var x = (chrome.displaySize.width - snippet.geometry.width) / 2;

    var y = (chrome.displaySize.height - snippet.geometry.height) / 2;

    snippet.setPosition(x, y);

}

function getChildById(el, childId) {

    var children = el.getElementsByTagName("*");

    for (var i = 0; i < children.length; i++) {

        var child = children[i];

        if (child.id == childId)

            return child;

    }

    return undefined;

}

function onActivateBookmarkView() {

    window.bookmarksManager.launchBookmarkEditDailog.connect(showBookmarkEditDialog);

}

function preLoad()

{   

    preloadSuperPage("BookmarkTreeView", "bookmarkview.superpage/BookmarkView.html");

    preloadSuperPage("SettingsView", "settingsview.superpage/SettingsView.html"); 

    preLoadBookmarksDone=1;

}

function _updateHistory()

{

	preloadSuperPage("BookmarkHistoryView", "historyview.superpage/historyView.html");

}

function _updateBookmarks()

{

    preloadSuperPage("BookmarkTreeView", "bookmarkview.superpage/BookmarkView.html");

}

// chrome_popupShownCount keeps a count of how many popups are currently being shown so that

// we can re-enable the appropriate UI elements only when the last one is hidden.

var chrome_popupShownCount = 0;

// Called when a PopupChromeItem is displayed.

function onPopupShown(id) {

    if(chrome_popupShownCount == 0) {

        // Disable snippets etc. that should be greyed-out while the popup is shown. 

        snippets.UrlSearchChromeId.enabled = false;

        views.WebView.enabled = false;

        views.WebView.freeze();

        // Note: this can be expanded as needed.  We may want to disable all snippets except

        // for the status bar and the one who's id was passed in.

    }

    chrome_popupShownCount++;

    if(preLoadBookmarksDone==0)

    {

    	preLoad();

    }

}

// Called when a PopupChromeItem is hidden.

function onPopupHidden(id) {

    chrome_popupShownCount--;

    if(chrome_popupShownCount == 0) {

        // Re-enable snippets etc. that were greyed-out while popups were being shown.

        snippets.UrlSearchChromeId.enabled = true;

        views.WebView.enabled = true;

        views.WebView.unfreeze();

    }

    if(chrome_popupShownCount < 0) app.debug("onPopupHidden: error, chrome_popupShownCount invalid");

}

function preloadSuperPage(pageName, path) {

    if (window.views.WebView[pageName] == undefined) {

        window.views.WebView.createSuperPage(pageName, true);

    }

    window.views.WebView[pageName].load(chrome.baseDirectory + path);

}

function onChromeComplete(){

    if (app.ui() == "orbit_ui") {

        snippets.StatusBarChromeId.hide();

    }

    window.snippets.WebViewToolbarId.menuButtonSelected.connect(chrome_showBasicMenu);

    window.snippets.BookmarkViewToolbarId.addBookmarkSelected.connect(chrome_addBookmark);

    window.snippets.UrlSearchChromeId.anchorToView("top");

    window.snippets.WebViewToolbarId.menuButtonCanceled.connect(chrome_cancelMenu);

    //window.snippets.ButtonContainer.setVisibilityAnimator("G_VISIBILITY_FADE_ANIMATOR");

    result = new Array;

    result = calcToolbarPopAnchorOffset(window.snippets.ZoomBarId,

                                        window.snippets.ZoomButtonSnippet,

                                        0,10);

    window.snippets.ZoomBarId.anchorTo("ZoomButtonSnippet",result[0],result[1]);

    snippets.SuggestsChromeId.url = chrome.baseDirectory + "suggests.snippet/suggests.html";

    window.ViewStack.activateBookmark.connect(onActivateBookmarkView);

    chrome.popupShown.connect(onPopupShown);

    chrome.popupHidden.connect(onPopupHidden);

    window.pageController.loadFinished.connect(_updateHistory);

    window.bookmarksManager.bookmarksCleared.connect(_updateBookmarks);

    window.bookmarksManager.historyCleared.connect(_updateHistory);

}

// For debugging: prints all properties and functions attached to a given object.

function printProp(x) {

    var str = "-------------\n" + x + " properties:\n";

    for (property in x) {

        str += ("\t" + property + ": " + x[property] + "\n");

    }

    app.debug(str);

}