Function queryActiveBindings

hub/astray/keyboard.js:130–164

* Generates an array of active key bindings

()

	 * Generates an array of active key bindings
	 */
	function queryActiveBindings() {
		var bindingStack = [];

		//loop through the key binding groups by number of keys.
		for(var keyCount = keyBindingGroups.length; keyCount > -1; keyCount -= 1) {
			if(keyBindingGroups[keyCount]) {
				var KeyBindingGroup = keyBindingGroups[keyCount];

				//loop through the key bindings of the same key length.
				for(var bindingIndex = 0; bindingIndex < KeyBindingGroup.length; bindingIndex += 1) {
					var binding = KeyBindingGroup[bindingIndex],

					//assume the binding is active till a required key is found to be unsatisfied
						keyBindingActive = true;

					//loop through each key required by the binding.
					for(var keyIndex = 0; keyIndex < binding.keys.length;  keyIndex += 1) {
						var key = binding.keys[keyIndex];

						//if the current key is not in the active keys array the mark the binding as inactive
						if(activeKeys.indexOf(key) < 0) {
							keyBindingActive = false;
						}
					}

					//if the key combo is still active then push it into the binding stack
					if(keyBindingActive) {
						bindingStack.push(binding);
					}
				}
			}
		}

		return bindingStack;
	}

	/**
	 * Collects active keys, sets active binds and fires on key down callbacks