Example usage for com.google.gwt.storage.client Storage isSupported

Introduction

In this page you can find the example usage for com.google.gwt.storage.client Storage isSupported.

Prototype

public static boolean isSupported() 

Source Link

Document

Returns true if the Storage API (both localStorage and sessionStorage) is supported on the running platform.

Usage

From source file:ch.takoyaki.email.html.client.service.FileServiceImpl.java

License:Open Source License

@Override
public boolean isSupported() {
    return Storage.isSupported();

}

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From source file:com.data2semantics.yasgui.client.View.java

License:Open Source License

/**
 * For a given endpoint, check whether it is defined in our endpoints datasource.
 * If it isnt, add it //ww w . j av a  2  s .  com
 * 
 * @param endpoint
 */
public void checkAndAddEndpointToDs(String endpoint) {
    if (!getSettings().inSingleEndpointMode()) {
        Record[] records = endpointDataSource.getCacheData();
        boolean exists = false;
        for (Record record : records) {
            String recordEndpoint = record.getAttribute(Endpoints.KEY_ENDPOINT);
            if (recordEndpoint != null && recordEndpoint.equals(endpoint)) {
                exists = true;
                break;
            }
        }

        if (!exists) {
            //Ok, so endpoint is not in our datasource. let's add it
            ListGridRecord listGridRecord = new ListGridRecord();
            listGridRecord.setAttribute(Endpoints.KEY_ENDPOINT, endpoint);
            Record[] newRecords = new Record[records.length + 1];
            newRecords[0] = listGridRecord;
            System.arraycopy(records, 0, newRecords, 1, records.length);
            endpointDataSource = new EndpointDataSource(this, newRecords);

            if (Storage.isSupported()) {
                //we have html5. add it to local storage as well so we keep it persistent between sessions
                String endpointsJsonString = LocalStorageHelper.getEndpointsFromLocalStorage();
                if (endpointsJsonString == null) {
                    //There are no endpoints in our storage. 
                    //This is kinda strange, but lets create a json array with this new endpoint anyway
                    JSONArray jsonArray = new JSONArray();
                    JSONObject newEndpointObject = new JSONObject();
                    newEndpointObject.put(Endpoints.KEY_ENDPOINT, new JSONString(endpoint));
                    jsonArray.set(0, newEndpointObject);
                    LocalStorageHelper.setEndpoints(jsonArray.toString());
                } else {
                    //Prepend the new endpoint to the array in our json object
                    JSONValue jsonVal = JSONParser.parseStrict(endpointsJsonString);
                    if (jsonVal != null) {
                        JSONArray endpoints = jsonVal.isArray();
                        JSONArray newEndpointsArray = new JSONArray();
                        JSONObject newEndpointObject = new JSONObject();
                        newEndpointObject.put(Endpoints.KEY_ENDPOINT, new JSONString(endpoint));
                        newEndpointsArray.set(0, newEndpointObject);
                        if (endpoints != null) {
                            for (int i = 0; i < endpoints.size(); i++) {
                                newEndpointsArray.set(newEndpointsArray.size(), endpoints.get(i));
                            }
                        }
                        LocalStorageHelper.setEndpoints(newEndpointsArray.toString());
                    }
                }
            }
        }
    }
}

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From source file:org.clevermore.monitor.client.utils.LocalStorage.java

License:Apache License

public static String readStoredItem(final String key) {
    if (Storage.isSupported()) {
        String item = Storage.getLocalStorageIfSupported().getItem(key);
        item = item == null ? "" : item;
        Log.debug("Returning value:" + item + ", from local storage with key:" + key);
        return item;
    } else {/* www  .  j  a  va 2s.  c  o  m*/
        // get from cookies
        String cookie = Cookies.getCookie(key);
        Log.debug("Returning value:" + cookie + ", from cookie with key:" + key);
        return cookie;
    }
}

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From source file:org.clevermore.monitor.client.utils.LocalStorage.java

License:Apache License

public static void storeItem(final String key, final String value) {
    if (Storage.isSupported()) {
        Log.debug("Storing value:" + value + ", with key:" + key + ", to local storage");
        Storage.getLocalStorageIfSupported().setItem(key, value);
    } else {/*from  ww w.  java 2  s  . c  om*/
        // store to cookies
        Log.debug("Storing value:" + value + ", with key:" + key + ", to cookie");
        Cookies.setCookie(key, value, new Date(Long.MAX_VALUE));
    }
}

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From source file:org.clevermore.monitor.client.utils.LocalStorage.java

License:Apache License

public static void removeItem(final String key) {
    if (Storage.isSupported()) {
        Log.debug("Removing key:" + key + ", from local storage");
        Storage.getLocalStorageIfSupported().removeItem(key);
    } else {/*  www . j  a v  a2 s. c  o m*/
        // store to cookies
        Log.debug("Removing key:" + key + ", from cookies");
        Cookies.removeCookie(key);
    }
}

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