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prevent zooming out further than the whole canvas

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ophir 2021-01-10 20:22:46 +01:00
parent 69db0af4c2
commit a10347695b
1 changed files with 4 additions and 1 deletions
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5
client-data/js/board.js
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@ -451,8 +451,11 @@ Tools.messageHooks = [resizeCanvas, updateUnreadCount];
Tools.scale = 1.0;
var scaleTimeout = null;
Tools.setScale = function setScale(scale) {
var fullScale = Math.max(window.innerWidth, window.innerHeight) / Tools.server_config.MAX_BOARD_SIZE;
var minScale = Math.max(0.1, fullScale);
var maxScale = 10;
if (isNaN(scale)) scale = 1;
scale = Math.max(0.1, Math.min(10, scale));
scale = Math.max(minScale, Math.min(maxScale, scale));
Tools.svg.style.willChange = 'transform';
Tools.svg.style.transform = 'scale(' + scale + ')';
clearTimeout(scaleTimeout);