to: function()

in plugin/zoom-js/zoom.js [207:252]

• 30 lines of code
• 9 McCabe index (conditional complexity)

		to: function( options ) {

			// Due to an implementation limitation we can't zoom in
			// to another element without zooming out first
			if( level !== 1 ) {
				zoom.out();
			}
			else {
				options.x = options.x || 0;
				options.y = options.y || 0;

				// If an element is set, that takes precedence
				if( !!options.element ) {
					// Space around the zoomed in element to leave on screen
					var padding = 20;
					var bounds = options.element.getBoundingClientRect();

					options.x = bounds.left - padding;
					options.y = bounds.top - padding;
					options.width = bounds.width + ( padding * 2 );
					options.height = bounds.height + ( padding * 2 );
				}

				// If width/height values are set, calculate scale from those values
				if( options.width !== undefined && options.height !== undefined ) {
					options.scale = Math.max( Math.min( window.innerWidth / options.width, window.innerHeight / options.height ), 1 );
				}

				if( options.scale > 1 ) {
					options.x *= options.scale;
					options.y *= options.scale;

					magnify( options, options.scale );

					if( options.pan !== false ) {

						// Wait with engaging panning as it may conflict with the
						// zoom transition
						panEngageTimeout = setTimeout( function() {
							panUpdateInterval = setInterval( pan, 1000 / 60 );
						}, 800 );

					}
				}
			}
		},