github:https://github.com/xuewuli/Tiny.Scatter

Tiny.Scatter

Scatter javascript warpper for webview

inject to iOS WKWebView

extension WKWebViewConfiguration {
    static func makeScatterEOSSupport(account: String, publicKey: String, in messageHandler: WKScriptMessageHandler, with config: WKWebViewConfiguration) -> Void {
        var js = ""

        if let filepath = Bundle.main.path(forResource: "tiny_scatter", ofType: "js") {
            do {
                js += try String(contentsOfFile: filepath)
            } catch { }
        }

        js +=
        """
        // value as string "SIG_K1_..."
        function onSignEOSMessageSuccessful(id, value) {
            BrigeAPI.sendResponse(id, value)
        }

        // value as string with this format '{"signatures":["SIG_K1_..."]}'
        function onSignEOSSuccessful(id, value) {
            BrigeAPI.sendResponse(id, JSON.parse(value))
        }

        // error as string
        function onSignEOSError(id, error) {
            BrigeAPI.sendError(id, {"type": "signature_rejected", "message": error, "code": 402, "isError": true})
        }

        TinyIdentitys.initEOS("\(account)", "\(publicKey)");

        const scatter = new TinyScatter();
        scatter.loadPlugin(new TinyEOS());

        window.scatter = scatter;

        document.dispatchEvent(new CustomEvent('scatterLoaded'));

        """
        let onLoadScript = WKUserScript(source: "document.dispatchEvent(new CustomEvent('scatterLoaded'))", injectionTime: .atDocumentEnd, forMainFrameOnly: false)
        config.userContentController.addUserScript(onLoadScript)
        let userScript = WKUserScript(source: js, injectionTime: .atDocumentStart, forMainFrameOnly: false)
        config.userContentController.add(messageHandler, name: XMethod.signEOS.rawValue)
        config.userContentController.addUserScript(userScript)
    }
}

Additional Android injection init.js, your need thirdpart lib suchlike https://github.com/TrustWallet/Web3View (or roll you own) to accomplish the injection.

/**
/* use webView.evaluateJavascript to call when your finish the sign
/* @param id as number , you got it when XWebView.signEOS called
/* @param value as string, with this format '{"signatures":["SIG_K1_..."]}'
**/
function onSignEOSSuccessful(id, value) {
    BrigeAPI.sendResponse(id, JSON.parse(value))
}

// value as string "SIG_K1_..."
function onSignEOSMessageSuccessful(id, value) {
    BrigeAPI.sendResponse(id, value)
}

function onSignEOSError(id, error) {
    BrigeAPI.sendError(id, {"type": "signature_rejected", "message": error, "code": 402, "isError": true})
}

const messageHandlers = {
    signEOS: {
        postMessage: function (param) {
            //XWebView is your @JavascriptInterface
            XWebView.signEOS(param.id, param.object.data);
        }
    },
    signEOSMsg: {
        postMessage: function (param) {
            XWebView.signEOSMsg(param.id, param.object.data);
        }
    }
}

window.webkit = { messageHandlers };

TinyIdentitys.initEOS("%1$s", "%2$s");

const scatter = new TinyScatter();
scatter.loadPlugin(new TinyEOS());

window.scatter = scatter;

setTimeout(function() {document.dispatchEvent(new CustomEvent('scatterLoaded'));}, 1000);

版权属于：区块链中文技术社区 / 转载原创者

本文链接：https://bcskill.com/index.php/archives/614.html

相关技术文章仅限于相关区块链底层技术研究，禁止用于非法用途，后果自负！本站严格遵守一切相关法律政策！