@tarojs/taro-h5/dist/api/canvas/canvasPutImageData.js

Taro h5 framework

import { findDOM } from '../../utils/index.js';
import { MethodHandler } from '../../utils/handler.js';

/**
 * 将像素数据绘制到画布。在自定义组件下，第二个参数传入自定义组件实例 this，以操作组件内 <canvas> 组件
 * @todo 暂未支持尺寸相关功能
 */
const canvasPutImageData = ({ canvasId, data, x, y, success, fail, complete }, inst) => {
    const handle = new MethodHandler({ name: 'canvasPutImageData', success, fail, complete });
    const el = findDOM(inst);
    const canvas = el === null || el === void 0 ? void 0 : el.querySelector(`canvas[canvas-id="${canvasId}"]`);
    try {
        const ctx = canvas.getContext('2d');
        // TODO Uint8ClampedArray => ImageData
        ctx === null || ctx === void 0 ? void 0 : ctx.putImageData(data, x, y);
        return handle.success();
    }
    catch (e) {
        return handle.fail({
            errMsg: e.message
        });
    }
};

export { canvasPutImageData };
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