com.flipboard.goldengate.JavaScriptBridge Maven / Gradle / Ivy

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Generate type safe java bridge into webview javascript code

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package com.flipboard.goldengate;

import android.webkit.WebView;

import java.util.Random;

/**
 * Base class with a couple helper methods for the generated bridges
 */
public abstract class JavaScriptBridge {

    private static JsonSerializer defaultJsonSerializer;

    private final Random random = new Random();
    protected final WebView webView;
    private final JsonSerializer jsonSerializer;

    public JavaScriptBridge(WebView webView) {
        this(webView, defaultJsonSerializer != null ? defaultJsonSerializer : new GsonJsonSerializer());
    }

    public JavaScriptBridge(WebView webView, JsonSerializer jsonSerializer) {
        this.webView = webView;
        this.jsonSerializer = jsonSerializer;
    }

    protected  String toJson(T stuff) {
        return jsonSerializer.toJson(stuff);
    }

    protected  T fromJson(String json, Class type) {
        return jsonSerializer.fromJson(json, type);
    }

    public static void setJsonSerializer(JsonSerializer serializer) {
        defaultJsonSerializer = serializer;
    }

}