Function getEbookConfig

scripts/reading.js:4379–4458

(configReadingEbook = false)

var _ebook = false;

async function getEbookConfig(configReadingEbook = false)
{
	configReadingEbook = configReadingEbook || _config.readingEbook;

	let rect = template._contentRight().getBoundingClientRect();

	if(rect.width == 0 || rect.height == 0)
	{
		for(let i = 0; i < 100; i++)
		{
			await app.sleep(20);

			rect = template._contentRight().getBoundingClientRect();

			if(rect.width != 0 && rect.height != 0)
				break;
		}
	}

	let renderZone = {
		width: ((rect.width - (readingMargin().left * (doublePage.active() ? 3 : 2))) / (doublePage.active() ? 2 : 1)) - (readingViewIs('scroll') ? 12 : 0),
		height: (rect.height - (readingMargin().top * 2)),
	};

	let width = 0;
	let height = 0;

	let integratedMode = configReadingEbook.integrated;
	let ratio = configReadingEbook.ratio;

	if(!integratedMode && ratio > 0.4)
	{
		if(renderZone.height / renderZone.width > ratio)
		{
			width = renderZone.width;
			height = renderZone.width * ratio;
		}
		else
		{
			width = renderZone.height / ratio;
			height = renderZone.height;
		}
	}
	else
	{
		width = renderZone.width;
		height = renderZone.height;
	}

	let maxWidth = configReadingEbook.maxWidth;
	let minMargin = configReadingEbook.minMargin;
	let verticalMargin = (readingViewIs('scroll') && !doublePage.active()) ? 0 : configReadingEbook.verticalMargin;

	let horizontalMargin = Math.round((width - maxWidth) / 2);

	if(horizontalMargin < minMargin)
		horizontalMargin = minMargin;