Sindbad~EG File Manager

// Function to customize the toolbar based on problem number and topic
function needsPointSlope(topic)
{	
	if (topic <= 19)
		return true;
	return false;
}

function needs_circular_aspect(topic)
{	if(topic == 29) // polar_graphs
		return true;
	return false;
}

function needsDirectionField(topic)
{	if(topic == 35)  // solve_two_odes
		return true;
	return false;
}

function customizeToolbar(problemNumber, topic) {  // inputs are supposed to be integers 
	console.log("in customizeToolbar with problem and topic", problemNumber, topic)
	// Logic to remove/hide buttons
	problemNumber = Number(problemNumber);
	topic = Number(topic);
	// In case some idiot sends it something like "35",  change it to 35 and go on.
	if ( needsDirectionField(topic) == false){
		var directionFieldButton = document.getElementById('directionField');
		if (directionFieldButton) {
			console.log("directionFieldButton found and will be invisible ");
			directionFieldButton.style.display = 'none';
		}
	}
	if ( needsPointSlope(topic) == false){
		var pointSlopeButton = document.getElementById('pointSlopeButton');
		if (pointSlopeButton) {
			pointSlopeButton.style.display = 'none';
		}
	}
	if (needs_circular_aspect(topic)) {
		var shadowODE2Input1IDButton = document.getElementById('horizontalzoomin');
		var vzoominButton = document.getElementById('verticalzoomin');
		var hzoomoutButton = document.getElementById('horizontalzoomout');
		var vzoomoutButton = document.getElementById('verticalzoomout');
        if (shadowODE2Input1IDButton) {
            shadowODE2Input1IDButton.style.display = 'none';
        }
        if (vzoominButton) {
            vzoominButton.style.display = 'none';
        }
        if (hzoomoutButton) {
            hzoomoutButton.style.display = 'none';
        }
        if (vzoomoutButton) {
            vzoomoutButton.style.display = 'none';
        }
    }
	 var commentary = document.getElementById("remarks");
	 if(!commentary)
		{
			// remove the Remarks button as there's no remark to display
			var remarkButton = document.getElementById("remarksButton");
			if (remarkButton){
				remarkButton.style.display = "none";
			}
		}
}

document.addEventListener('DOMContentLoaded', function() {
	customizeToolbar(problemNumber, topicNumber);  
	 // These variables should be available in the document that included this file
});