watermark-js-plus/dist/ie/es/src/core/blind-decode.js

watermark for the browser

var blindDecodeFallback;
var registerBlindDecodeFallback = function (fallback) {
    blindDecodeFallback = fallback;
};
var applyBlindDecodeComposite = function (_a) {
    var ctx = _a.ctx, width = _a.width, height = _a.height, fillColor = _a.fillColor, compositeOperation = _a.compositeOperation, compositeTimes = _a.compositeTimes;
    if (!(compositeTimes > 0)) {
        return;
    }
    var previousCompositeOperation = ctx.globalCompositeOperation;
    ctx.globalCompositeOperation = compositeOperation;
    if (ctx.globalCompositeOperation !== compositeOperation && blindDecodeFallback) {
        ctx.globalCompositeOperation = previousCompositeOperation;
        blindDecodeFallback({
            ctx: ctx,
            fillColor: fillColor,
            compositeOperation: compositeOperation,
            compositeTimes: compositeTimes,
        });
        return;
    }
    ctx.fillStyle = fillColor;
    for (var i = 0; i < compositeTimes; i++) {
        ctx.fillRect(0, 0, width, height);
    }
};

export { applyBlindDecodeComposite, registerBlindDecodeFallback };