Function trimToMin

docs/assets/split.js:392–457

(sizesToTrim)

        // (and decreased from the other elements) to make space for the pixels
        // subtracted by the gutters.
        function trimToMin(sizesToTrim) {
            // Try to get inner size of parent element.
            // If it's no supported, return original sizes.
            var parentSize = innerSize(parent);
            if (parentSize === null) {
                return sizesToTrim
            }

            if (minSizes.reduce(function (a, b) { return a + b; }, 0) > parentSize) {
                return sizesToTrim
            }

            // Keep track of the excess pixels, the amount of pixels over the desired percentage
            // Also keep track of the elements with pixels to spare, to decrease after if needed
            var excessPixels = 0;
            var toSpare = [];

            var pixelSizes = sizesToTrim.map(function (size, i) {
                // Convert requested percentages to pixel sizes
                var pixelSize = (parentSize * size) / 100;
                var elementGutterSize = getGutterSize(
                    gutterSize,
                    i === 0,
                    i === sizesToTrim.length - 1,
                    gutterAlign
                );
                var elementMinSize = minSizes[i] + elementGutterSize;

                // If element is too smal, increase excess pixels by the difference
                // and mark that it has no pixels to spare
                if (pixelSize < elementMinSize) {
                    excessPixels += elementMinSize - pixelSize;
                    toSpare.push(0);
                    return elementMinSize
                }

                // Otherwise, mark the pixels it has to spare and return it's original size
                toSpare.push(pixelSize - elementMinSize);
                return pixelSize
            });

            // If nothing was adjusted, return the original sizes
            if (excessPixels === 0) {
                return sizesToTrim
            }

            return pixelSizes.map(function (pixelSize, i) {
                var newPixelSize = pixelSize;

                // While there's still pixels to take, and there's enough pixels to spare,
                // take as many as possible up to the total excess pixels
                if (excessPixels > 0 && toSpare[i] - excessPixels > 0) {
                    var takenPixels = Math.min(
                        excessPixels,
                        toSpare[i] - excessPixels
                    );

                    // Subtract the amount taken for the next iteration