//  Controller baseline established 10/9/2007

//
//  The Nav interface still has a lot of ActionScript on the fla that we should try to purge
//  in favor of handling evrything dynamically from .as files.
//
//  NavInterfaceBase is a base class.  Currently the only subclass in NavInterfaceObj which
//  over-rides very little of the logic here.  The Controller only instantiates NavInterfaceObj
//  so that is a particular course whats to customize the nav interface functionality it can rewrite
//  NavInterfaceObj, leaving the Controller and NavInterfaceBase as is for other courses.
//
function NavInterfaceBase() {
	this.navBarCntrls      = new Object();
	this.lvlRef            = null;
	this.suspendedLbl      = "suspended";
	this.normalLbl         = "normal";
	this.pausedLbl         = "paused";
	this.hiddenLbl         = "intro";
	this.transitionLbl     = "transition";
	this.toggleRMAOn       = true;
	this.pageLocation      = undefined;
	this.nextBtn           = undefined;
	this.prevBtn           = undefined;
}

NavInterfaceBase.prototype.createNavButtons = function(navBtnsNode) {
	var idx = NAV_INTERFACE_BASE_TAB_IDX;
	for (var i = 0; i < navBtnsNode.childNodes.length; i++) {
		var childNode = navBtnsNode.childNodes[i];
		if (childNode.nodeType == 1) {
			if (childNode.nodeName == "NavBtn") {
				var navBtn = new NavBarControl(childNode, idx++);
				this.navBarCntrls[navBtn.name] = navBtn;
				if (navBtn.isNextBtn) {
					this.nextBtn = navBtn;
				}
				if (navBtn.isPrevBtn) {
					this.prevBtn = navBtn;
				}
			}
		}
	}

}

NavInterfaceBase.prototype.initialize = function() {
	this.lvlRef = eval("_level" + NAV_LVL);

	if ((this.lvlRef == null) || (this.lvlRef == undefined)) {
		debugLog("WARNING: Unable to get a reference to the nav interface movie.");
	}

	for (var navBtnName in this.navBarCntrls) {
		this.navBarCntrls[navBtnName].initialize();
	}

	var toggleNavBarCntrl = this.navBarCntrls["toggleNavRMABtn"];
	toggleNavBarCntrl.objRef._alpha = 0;

	this.setInterfaceToNormal();
	this.PageChanged(pageIdx);
	this.setTitleGraphic();
}


NavInterfaceBase.prototype.PageChanged = function(pageIdx) {
	if (this.lvlRef == null) {
		this.lvlRef = eval("_level" + NAV_LVL);
	}
	if (this.pageLocation == undefined) {
		this.pageLocation = eval("_level" + NAV_LVL + ".pageLocation");
		this.pageLocation._accProps             = new Object();
		this.pageLocation._accProps.silent      = false;
		this.pageLocation._accProps.forceSimple = true;
		this.pageLocation._accProps.name        = "";
		this.pageLocation.tabIndex              = PAGE_LOC_TAB_IDX;
		this.pageLocation._width                = 0;
	}
	var pgNbr   = getCurrentPageNbr();
	var pgCount = currentModule.getPageCount();

	if (currentModule.pageCountType == "ByTopic") {
		var currentTopic = currentModule.getTopic(topicIdx);
		pgCount = currentTopic.getPageCount();
	}

	this.lvlRef.pageNbr.text   = pgNbr;
	this.lvlRef.pageCount.text = pgCount;

	this.pageLocation.text = "Page " + pgNbr + " of " + pgCount;

	this.setTopicTitle();
	this.setModuleTitle();
}


NavInterfaceBase.prototype.hideInterface = function() {
	for (var navBtnName in this.navBarCntrls) {
		var navBarCntrl = this.navBarCntrls[navBtnName];
		navBarCntrl.setVisible(false);
		navBarCntrl.makeRMASilent(true, this.toggleRMAOn);
	}
	this.lvlRef.gotoAndStop(this.hiddenLbl);
	Accessibility.updateProperties();
}

NavInterfaceBase.prototype.suspendInterface = function() {
debugLog("suspendInterface");
	for (var navBtnName in this.navBarCntrls) {
		var navBarCntrl = this.navBarCntrls[navBtnName];

		if (navBtnName == "resumeBtn") {
			navBarCntrl.setVisible(false);
			navBarCntrl.setEnabled(false);
		}
		else {
			navBarCntrl.setVisible(true);
			navBarCntrl.setEnabled(false);
		//	navBarCntrl.makeRMASilent(true, this.toggleRMAOn);
		}
	}
	this.lvlRef.gotoAndStop(this.suspendedLbl);
	Accessibility.updateProperties();
}

NavInterfaceBase.prototype.setInterfaceToNormal = function() {
debugLog("setInterfaceToNormal");
	for (var navBtnName in this.navBarCntrls) {
		var navBarCntrl = this.navBarCntrls[navBtnName];

		if (navBtnName == "resumeBtn") {
			navBarCntrl.setVisible(false);
			navBarCntrl.setEnabled(false);
			navBarCntrl.makeRMASilent(true, this.toggleRMAOn);
		}
		else {
			navBarCntrl.setVisible(true);
			navBarCntrl.setEnabled(true);
			navBarCntrl.makeRMASilent(false, this.toggleRMAOn);
		}
	}
	this.lvlRef.gotoAndStop(this.normalLbl);
	Accessibility.updateProperties();
}

NavInterfaceBase.prototype.setInterfaceToPaused = function() {
debugLog("setInterfaceToPaused");
	for (var navBtnName in this.navBarCntrls) {
		var navBarCntrl = this.navBarCntrls[navBtnName];
		if (navBtnName == "pauseBtn") {
			navBarCntrl.setVisible(false);
			navBarCntrl.setEnabled(false);
		}
		else if (navBtnName == "resumeBtn") {
			navBarCntrl.setVisible(true);
			navBarCntrl.setEnabled(true);
			navBarCntrl.makeRMASilent(false, this.toggleRMAOn);
		}
		else {
			navBarCntrl.setEnabled(false);
			navBarCntrl.makeRMASilent(true, this.toggleRMAOn);
		}
	}
	this.lvlRef.gotoAndStop(this.pausedLbl);
	Accessibility.updateProperties();
}


NavInterfaceBase.prototype.transitionInterface = function () {
	this.lvlRef.gotoAndPlay(ths.transitionLbl);
}


//
//  This function is provided to make it easy to enable/disable and change the
//  appearance of the "Next" and "Prev" navigation buttons.
//  For example see ControllerBehvavior.xml calls such as:
//
NavInterfaceBase.prototype.setButton = function(btnName, btnEnabled, btnState) {
	var navBarCntrl = undefined;

	//
	//  Sample lines from controllerbehavior.xml:
	//
	//      <SetButton button="Next" buttonEnabled="true" state="blink" />
	//      <SetButton button="Previous" buttonEnabled="true" state="on" />
	//
	var obj = new Object();

	if (btnName == "Next") {
		navBarCntrl = this.nextBtn;
	}
	else if (btnName == "Previous") {
		navBarCntrl = this.prevBtn;
	}
	else {
		navBarCntrl = this.navBarCntrls[btnName];
	}
	if (navBarCntrl == undefined) {
		return;
	}
	var rmaSilent = (!btnEnabled || !navBarCntrl.visible);
	navBarCntrl.makeRMASilent(rmaSilent, this.toggleRMAOn);

	navBarCntrl.setEnabled(btnEnabled);
	navBarCntrl.setVisualState(btnState);
}

NavInterfaceBase.prototype.setButton_COMPONENT_VERSION = function(btnName, btnEnabled, btnState) {
	var navBarCntrl = undefined;

	//
	//  Sample lines from controllerbehavior.xml:
	//
	//      <SetButton button="Next" buttonEnabled="true" state="blink" />
	//      <SetButton button="Previous" buttonEnabled="true" state="on" />
	//
	var obj = new Object();

	if (btnName == "Next") {
		navBarCntrl = this.nextBtn;

		if (btnState == "blink") {
			obj.falseUpSkin       = "NextBlinkingActiveSkin";
			obj.falseDownSkin     = "NextDownSkin";
			obj.falseOverSkin     = "NextRollSkin";
			obj.falseDisabledSkin = "NextDownSkin";
			navBarCntrl.setSkin(obj);
		}
		else {
			obj.falseUpSkin       = "NextActiveSkin";
			obj.falseDownSkin     = "NextDownSkin";
			obj.falseOverSkin     = "NextRollSkin";
			obj.falseDisabledSkin = "NextDownSkin";
			navBarCntrl.setSkin(obj);
		}
	}
	else if (btnName == "Previous") {
		navBarCntrl = this.prevBtn;
	}
	else {
		navBarCntrl = this.navBarCntrls[btnName];
	}
	if (navBarCntrl == undefined) {
		return;
	}
	//navBarCntrl.setVisible(true);
	navBarCntrl.setEnabled(btnEnabled);
	//navBarCntrl.makeRMASilent(false, this.toggleRMAOn);
}


////////////////////////////////
//REVISIT:  SPECIFY THESE PARAMETERS IN THE DATA.XML
NavInterfaceBase.prototype.setTopicTitle = function() {
	if (this.lvlRef == null) {
		this.lvlRef = eval("_level" + NAV_LVL);
	}
////	this.lvlRef.topicTitle._x       = 950;
//	this.lvlRef.topicTitle._x       = 732;
//	this.lvlRef.topicTitle._width   = 0;
//	this.lvlRef.topicTitle.autoSize = "right";
//debugLog("SETTING TOPIC TITLE: (" + topicIdx + ") " + topic[topicIdx].title);
	this.lvlRef.topicTitle.text     = topic[topicIdx].title;
}

NavInterfaceBase.prototype.setModuleTitle = function() {
	if (this.lvlRef == null) {
		this.lvlRef = eval("_level" + NAV_LVL);
	}
//	this.lvlRef.moduleTitle._x       = 950;
//	this.lvlRef.moduleTitle._width   = 0;
//	this.lvlRef.moduleTitle.autoSize = "right";
	this.lvlRef.moduleTitle.text     = currentModule.moduleTitle;
}

NavInterfaceBase.prototype.toggleRMA = function() {
	this.toggleRMAOn = !this.toggleRMAOn;
	for (var navBtnName in this.navBarCntrls) {
		var navBarCntrl = this.navBarCntrls[navBtnName];
		// REVISIT.  NOT SURE THIS IS STRICTLY CORRECT.
		// INSTEAD OF FALSE, WE SHOULD BE USING THE CURRENT STATE
		navBarCntrl.makeRMASilent(false, this.toggleRMAOn);
	}
}

NavInterfaceBase.prototype.resetFocus = function() {
	this.lvlRef.focusManager.setFocus(this.pageLocation);
	//Selection.setFocus("_level" + this.parent.openOnLevel + ".fbBox.fbText");
}

//REVISIT: MOVE TO XMLActions.as
var ToggleNavBtnsRMA = function() {
	navInterface.toggleRMA();
}



//REVISIT: NOT CURRENTLY USED
//NavInterfaceBase.prototype.restoreAllButtons = function() {
//	//REVISIT.  NOT SURE WHEN/WHY THIS METHOD IS CALLED.
////	this.lvlRef.restoreAllButtons();
//
//	var nextBtn = this.navBarCntrls["Next"];
//	this.setButton("Next", nextBtn.btnEnabled, nextBtn.state);
//	var prevBtn = this.navBarCntrls["Previous"];
//	this.setButton("Previous", prevBtn.btnEnabled, prevBtn.state);
//}

//REVISIT: NOT CURRENTLY USED
//NavInterfaceBase.prototype.synchAccessibility = function() {
//	debugLog("NavInterfaceBase: nav synchAccessibility");
//	this.makeNotSilent();
//
////	for (var navBtnName in this.navBarCntrls) {
////		this.navBarCntrls[navBtnName].synchAccessibilityObj();
////	}
////	this.lvlRef.gotoAndPlay(this.normalLbl);
//debugLog("NavInterfaceBase: Acc.updateProperties()");
//	Accessibility.updateProperties();
//}



//REVISIT: NOT CURRENTLY USED
//NavInterfaceBase.prototype.makeSilent = function() {
//debugLog("NavInterfaceBase: in makeSilent");
//	_level21._accProps = new Object();
//	_level21._accProps.silent = true;
//	_level21._accProps.forceSimple = true;
//	Accessibility.updateProperties();
//}

//REVISIT: NOT CURRENTLY USED
//NavInterfaceBase.prototype.makeNotSilent = function() {
//debugLog("NavInterfaceBase: in makeNotSilent");
//	_level21._accProps = new Object();
//	_level21._accProps.silent = false;
//	_level21._accProps.forceSimple = false;
//	Accessibility.updateProperties();
//}


//REVISIT: NOT CURRENTLY USED
//NavInterfaceBase.prototype.setRMA = function(silent) {
//debugLog("NavInterfaceBase: navInterface setRMA, silnet = " + silent);
////return;
//
//	if (silent) {
//		this.hideNavButtons();
//	}
//	else {
//		this.synchAccessibility();
//	}
//}