react-native-file-stream
Version:
operate file stream in react native
164 lines (163 loc) • 7.62 kB
JavaScript
;
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (g && (g = 0, op[0] && (_ = 0)), _) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
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op = body.call(thisArg, _);
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if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.DataConvertUtils = void 0;
var DataConvertUtil_1 = require("./DataConvertUtil");
var Native_1 = require("./Native");
var ReactNativeFileStream = /** @class */ (function () {
function ReactNativeFileStream() {
this.alreadyInitEventListener = false;
this.callBackMap = new Map();
}
ReactNativeFileStream.prototype.initEventListener = function () {
var _this = this;
Native_1.ReactNativeFileStreamEventEmitter.addListener("log_from_native", function (msg) {
console.log("log_from_native", msg);
});
Native_1.ReactNativeFileStreamEventEmitter.addListener("file_read_data", function (data) {
var key = data === null || data === void 0 ? void 0 : data.key;
var base64Data = data === null || data === void 0 ? void 0 : data.data;
if (!key || !base64Data) {
console.log("read file error", data);
}
var callBack = _this.callBackMap.get(key);
if (callBack) {
callBack.call(null, {
data: base64Data,
hasMore: true
});
}
});
Native_1.ReactNativeFileStreamEventEmitter.addListener("file_Read_finish", function (data) {
var key = data === null || data === void 0 ? void 0 : data.key;
var callBack = _this.callBackMap.get(key);
if (callBack) {
callBack.call(null, {
data: null,
hasMore: false
});
}
});
this.alreadyInitEventListener = true;
};
;
ReactNativeFileStream.prototype.checkAndInitEventListener = function () {
if (this.alreadyInitEventListener) {
return;
}
this.initEventListener();
};
;
ReactNativeFileStream.prototype.readFileStream = function (file, bufferSize, cb) {
return __awaiter(this, void 0, void 0, function () {
var uri, key, result;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
this.checkAndInitEventListener();
uri = file.uri;
key = file.fileName + file.fileSize;
this.callBackMap.set(key, cb);
return [4 /*yield*/, Native_1.ReactNativeFileStreamModule.startReadFileStream(uri, key, bufferSize)];
case 1:
result = _a.sent();
return [2 /*return*/, result];
}
});
});
};
;
ReactNativeFileStream.prototype.initWriteFileStream = function (path) {
return __awaiter(this, void 0, void 0, function () {
var result;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
this.checkAndInitEventListener();
return [4 /*yield*/, Native_1.ReactNativeFileStreamModule.initFileWrite(path)];
case 1:
result = _a.sent();
return [2 /*return*/, result];
}
});
});
};
;
ReactNativeFileStream.prototype.writeFileStream = function (path, base64Data) {
return __awaiter(this, void 0, void 0, function () {
var result;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (!path || !base64Data) {
return [2 /*return*/, false];
}
this.checkAndInitEventListener();
return [4 /*yield*/, Native_1.ReactNativeFileStreamModule.writeFileStream(path, base64Data)];
case 1:
result = _a.sent();
return [2 /*return*/, result];
}
});
});
};
;
ReactNativeFileStream.prototype.stopWriteFileStream = function (path) {
return __awaiter(this, void 0, void 0, function () {
var result;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (!path) {
return [2 /*return*/, false];
}
this.checkAndInitEventListener();
return [4 /*yield*/, Native_1.ReactNativeFileStreamModule.stopFileWrite(path)];
case 1:
result = _a.sent();
return [2 /*return*/, result];
}
});
});
};
;
return ReactNativeFileStream;
}());
var ReactNativeFileOperateStream = new ReactNativeFileStream();
exports.DataConvertUtils = DataConvertUtil_1.DataConvertUtil;
exports.default = ReactNativeFileOperateStream;