Function parseScale

viewer.js:202–246

(value, resetAutoSettings)

    }

    function parseScale(value, resetAutoSettings) {
        var scale,
            maxWidth,
            maxHeight;

        if (value === 'custom') {
            scale = parseFloat(document.getElementById('customScaleOption').textContent) / 100;
        } else {
            scale = parseFloat(value);
        }

        if (scale) {
            setScale(scale, true);
            delayedRefresh(300);
            return;
        }

        maxWidth = canvasContainer.clientWidth - kScrollbarPadding;
        maxHeight = canvasContainer.clientHeight - kScrollbarPadding;

        switch (value) {
        case 'page-actual':
            setScale(1, resetAutoSettings);
            break;
        case 'page-width':
            viewerPlugin.fitToWidth(maxWidth);
            break;
        case 'page-height':
            viewerPlugin.fitToHeight(maxHeight);
            break;
        case 'page-fit':
            viewerPlugin.fitToPage(maxWidth, maxHeight);
            break;
        case 'auto':
            if (viewerPlugin.isSlideshow()) {
                viewerPlugin.fitToPage(maxWidth + kScrollbarPadding, maxHeight + kScrollbarPadding);
            } else {
                viewerPlugin.fitSmart(maxWidth);
            }
            break;
        }

        selectScaleOption(value);
        delayedRefresh(300);
    }

    function readZoomParameter(zoom) {
        var validZoomStrings = ["auto", "page-actual", "page-width"],