graft-react
Version:
react admin and helper components for graft-db
154 lines (153 loc) • 7.33 kB
JavaScript
;
var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
var __assign = (this && this.__assign) || Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
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) : new P(function (resolve) { resolve(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;
return { next: verb(0), "throw": verb(1), "return": verb(2) };
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
if (f = 1, y && (t = y[op[0] & 2 ? "return" : op[0] ? "throw" : "next"]) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [0, 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; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
var React = require("react");
var WithClient_1 = require("./WithClient");
var utils_1 = require("../utils");
function placeholder(txt) {
return "https://placeholdit.imgix.net/~text?txtsize=38&txt=" + txt + "&w=400&h=250&txttrack=0";
}
var loading = placeholder('loading');
var missing = placeholder('missing');
var offline = placeholder('missing');
var error = placeholder('error');
function WithSrc(Component) {
return _a = (function (_super) {
__extends(ImgWithSrc, _super);
function ImgWithSrc() {
var args = [];
for (var _i = 0; _i < arguments.length; _i++) {
args[_i] = arguments[_i];
}
var _this = _super.apply(this, args) || this;
_this.setSrc = function (src) {
if (_this.mounted && _this.state.src !== src) {
_this.setState({ src: src });
}
return src;
};
_this.setErr = function (err) {
_this.setSrc(error);
console.warn('Img fail:', _this.props.id, err);
};
var _a = _this.props, src = _a.src, id = _a.id;
if (src) {
_this.state = { src: src };
}
else {
var client = _this.context.client;
if (id && client && !client.store.isQueued(id)) {
_this.state = { src: _this.optimisedURL(id) };
}
else {
_this.state = { src: loading };
_this.load(_this.props)
.then(_this.setSrc)
.catch(_this.setErr);
}
}
return _this;
}
ImgWithSrc.prototype.componentDidMount = function () {
this.mounted = true;
};
ImgWithSrc.prototype.componentWillUnmount = function () {
this.mounted = false;
};
ImgWithSrc.prototype.componentWillReceiveProps = function (nextProps) {
var _a = this.props, src = _a.src, id = _a.id;
if (id !== nextProps.id || src !== nextProps.src) {
this.load(nextProps)
.then(this.setSrc)
.catch(this.setErr);
}
};
ImgWithSrc.prototype.load = function (props) {
return __awaiter(this, void 0, void 0, function () {
var src, id, client, bytes, blob;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
src = props.src, id = props.id;
if (src) {
return [2 /*return*/, src];
}
if (!id) {
return [2 /*return*/, missing];
}
client = this.context.client;
if (!client) {
return [2 /*return*/, offline];
}
if (!client.store.isQueued(id)) return [3 /*break*/, 2];
return [4 /*yield*/, client.store.getBuffer(id)];
case 1:
bytes = _a.sent();
blob = new Blob([bytes]);
return [2 /*return*/, utils_1.blobToDataURL(blob)];
case 2: return [2 /*return*/, this.optimisedURL(id)];
}
});
});
};
ImgWithSrc.prototype.optimisedURL = function (id) {
return "http://graft.imgix.net" + id;
};
ImgWithSrc.prototype.render = function () {
var src = this.state.src;
var props = __assign({}, this.props, { src: src || placeholder });
return React.createElement(Component, __assign({}, props));
};
return ImgWithSrc;
}(React.Component)),
_a.contextTypes = WithClient_1.clientContextTypes,
_a;
var _a;
}
exports.WithSrc = WithSrc;