微调表单组件

Tevin

2023-01-09 0abe6710787db01e55ad78f8d82682de7acd2fa2

 common/Bridge.js

@@ -24,12 +24,15 @@

import { Fetcher } from '@components/bases/Fetcher';
import { Tools } from '@components/common/Tools';
import { $fileTrans } from '@components/common/FileTransform';

export class Bridge {

    constructor() {
        this._data = {
            count: 100,
            fileSaved: {},  // 已保存图片名称列表 { 'blob:***' : 'bridge:***' }
            fileLoaded: {},  // 已读取图片名称列表 { 'bridge:***' : 'blob:***' }
        };
        this._receives = {};
        this._earlyInvok = [];
@@ -98,14 +101,17 @@
        this[name] = (res) => {
            if (callback && Tools.isFunction(callback)) {
                if (res) {
                    let data;
                    try {
                        let data = typeof res === 'string' ? JSON.parse(res) : res;
                        // 转对象
                        data = typeof res === 'string' ? JSON.parse(res) : res;
                        // 转换接收参数键名为驼峰
                        data = this.transKeyName('camel', data);
                        callback(data);
                    } catch (e) {
                        Tools.toast('通讯数据解析失败!');
                        Tools.toast('跨端通讯异常：解析数据失败！');
                        return;
                    }
                    callback(data);
                } else {
                    callback();
                }
@@ -215,6 +221,243 @@
        return Fetcher.prototype.transKeyName(type, json);
    }

    /* ----- 文件系统 ----- */

    /**
     * 保存文件到 java 端，并返回文件名
     * @param objUrl
     * @param callback
     * @param onError
     */
    fileSave(objUrl = '', callback, onError) {
        // 非 ObjectURL 跳过
        if (objUrl.indexOf('blob:') < 0) {
            callback(objUrl);
            return;
        }
        if (this._data.fileSaved[objUrl]) {
            callback(this._data.fileSaved[objUrl]);
            return;
        }
        // 分段存储
        const saveFileChunk = (baseData, index) => {
            const writeData = {
                fileName: baseData.fileName,
                currentIdx: index,
                totalIdx: baseData.total,
                data: baseData.baseArr[index],
            };
            this.invoking('img_write', writeData, res => {
                if (res.result === false) {
                    Tools.toast('离线图片存储：' + res.msg);
                    onError({
                        method: 'img_write',
                        request: {
                            fileName: writeData.fileName,
                            currentIdx: writeData.currentIdx,
                            totalIdx: writeData.total,
                            data: (writeData.data || '').substr(0, 10)
                                + '...(共' + (writeData.data || '').length + '个base64字符)',
                        },
                        response: res,
                    });
                    return;
                }
                // 按分段递归保存
                if (index < baseData.total - 1) {
                    setTimeout(() => {
                        saveFileChunk(baseData, index + 1);
                    }, 10);
                }
                // 已完成
                else {
                    callback && callback('bridge:' + baseData.fileName);
                }
            });
        };
        $fileTrans.transObjUrlToBaseData(objUrl, baseData => {
            this._data.fileSaved[objUrl] = 'bridge:' + baseData.fileName;
            saveFileChunk(baseData, 0);
        });
    }

    /**
     * 从 java 读取文件 base64
     * @param bridgeName
     * @param callback
     * @param onError
     */
    fileLoad(bridgeName = '', callback, onError) {
        // 非存储地址，跳过
        if (bridgeName.indexOf('bridge:') < 0) {
            callback(bridgeName);
            return;
        }
        if (this._data.fileLoaded[bridgeName]) {
            callback(this._data.fileLoaded[bridgeName]);
            return;
        }
        const fileName = bridgeName.split(':')[1];
        const chunkSize = $fileTrans.getChunkSize();
        const baseArr = [];
        let totalSize = 0;
        let totalCount = 0;
        const loadFileChunk = (index) => {
            const loadData = {
                fileName,
                offset: chunkSize * index,
                length: chunkSize,
            };
            this.invoking('img_read', loadData, res => {
                if (res.result === false) {
                    Tools.toast('离线图片读取：' + res.msg);
                    onError({
                        method: 'img_read',
                        request: {
                            ...loadData,
                            totalCount,
                        },
                        response: {
                            result: res.result,
                            msg: res.msg,
                            'total_size': res.totalSize,
                            data: (res.data || '').substr(0, 10)
                                + '...(共' + (res.data || '').length + '个base64字符)',
                        },
                    });
                    return;
                }
                if (totalSize === 0) {
                    totalSize = res.totalSize;
                    totalCount = Math.ceil(res.totalSize / chunkSize);
                }
                baseArr.push(res.data);
                // 按分段递归读取
                if (totalCount > 1 && totalCount - 1 > index) {
                    loadFileChunk(index + 1);
                }
                // 读取完成
                else {
                    const baseData = {
                        baseArr,
                        fileName,
                    };
                    try {
                        $fileTrans.transBaseDataToObjUrl(baseData, objUrl => {
                            this._data.fileLoaded[bridgeName] = objUrl;
                            callback && callback(objUrl);
                        });
                    } catch (e) {
                        onError({
                            method: 'img_read@merge_after_base64_loaded',
                            request: {
                                ...loadData,
                                totalCount,
                            },
                            response: {
                                result: res.result,
                                msg: res.msg,
                                'total_size': res.totalSize,
                                data: (res.data || '').substr(0, 10)
                                    + '...(共' + (res.data || '').length + '个base64字符)',
                            },
                            base64Arr: baseData.baseArr.map(baseItem => (baseItem || []).substr(0, 10)
                                + '...(共' + (res.data || '').length + '个base64字符)'),
                            message: 'Base64合并解析异常！',
                        });
                    }
                }
            });
        };
        loadFileChunk(0);
    }

    /**
     * 从 java 端移除文件
     * @param bridgeName
     */
    fileRemove(bridgeName = '') {
        if (bridgeName.indexOf('bridge:') < 0) {
            return;
        }
        const fileName = bridgeName.split(':')[1];
        this.invoking('img_del', { fileName });
        // 移除
        Object.keys(this._data.fileSaved).forEach(objUrl => {
            if (bridgeName === this._data.fileSaved[objUrl]) {
                delete this._data.fileSaved[objUrl];
            }
        });
    }

    /**
     * 文件存储批量操作服务
     * @param type
     * @param names
     * @param callback
     */
    fileStore(type, names = [], callback) {
        if (!names || names.length === 0) {
            callback && callback([]);
            return;
        }
        if (typeof names === 'string') {
            names = names.split(',');
        }
        // 保存
        if (type === 'save') {
            const list = [];
            const save = index => {
                this.fileSave(names[index], bridgeName => {
                    list.push(bridgeName);
                    // 递归下一个
                    if (index < names.length - 1) {
                        setTimeout(() => {
                            save(index + 1);
                        }, 10);
                    }
                    // 完成
                    else {
                        callback && callback(list);
                    }
                }, err => {
                    callback && callback(null, err);
                });
            };
            save(0);
        }
        // 读取
        else if (type === 'load') {
            const list = [];
            const load = index => {
                this.fileLoad(names[index], objUrl => {
                    list.push(objUrl);
                    // 递归下一个
                    if (index < names.length - 1) {
                        setTimeout(() => {
                            load(index + 1);
                        }, 10);
                    }
                    // 完成
                    else {
                        callback && callback(list);
                    }
                }, err => {
                    callback && callback(null, err);
                });
            };
            load(0);
        }
        // 移除
        else if (type === 'remove') {
            names.forEach((name, index) => {
                setTimeout(() => {
                    this.fileRemove(name);
                }, 10 * index);
            });
        }
    }

}

// 全局服务实例