com.risevision.viewer.client.data.DisplayRegistrationController.java Source code

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Here is the source code for com.risevision.viewer.client.data.DisplayRegistrationController.java

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// Copyright  2010 - May 2014 Rise Vision Incorporated.
// Use of this software is governed by the GPLv3 license
// (reproduced in the LICENSE file).

package com.risevision.viewer.client.data;

import com.google.gwt.core.client.JavaScriptObject;
import com.google.gwt.http.client.URL;
import com.google.gwt.user.client.Window;
import com.risevision.common.client.json.JSOModel;
import com.risevision.viewer.client.info.Global;
import com.risevision.viewer.client.widgets.oem.EnterClaimIdWidget;
import com.risevision.viewer.client.widgets.oem.EnterDisplayIdWidget;

public class DisplayRegistrationController {

    private static final String MODE_REGISTER = "REGISTER";
    private static final String MODE_VALIDATE = "VALIDATE";

    public static void registerDisplay(String claimId, String displayName) {
        // API: /v2/viewer/display/{claimId}/register?callback={callbackName}&name={displayName}
        //      callbackName is mandatory, displayName is optional.
        int viewerWidth = Window.getClientWidth();
        int viewerHeight = Window.getClientHeight();

        String url = Global.DATA_SERVER_URL.replace("{0}", "display");
        url = url.replace("{1}", claimId);
        url += "/register?width=" + viewerWidth + "&height=" + viewerHeight;
        if (displayName != null && !displayName.isEmpty()) {
            url += "&name=" + URL.encodeQueryString(displayName);
        }
        url += "&callback=?";
        callUrlNative(url, MODE_REGISTER);
    }

    public static void validateDisplayId(String displayId) {
        // reuse Viewer API "display" call
        String url = Global.DATA_SERVER_URL.replace("{0}", "display");
        url = url.replace("{1}", displayId);
        url += "?callback=?";
        callUrlNative(url, MODE_VALIDATE);
    }

    private static void processResponse(JavaScriptObject jso, String mode) {
        int errorCode;
        String newDisplayId;

        JSOModel obj = (JSOModel) jso;
        JSOModel status = obj.getObject("status");

        if (status != null && mode != null) {
            String statusMessage = status.get("message");
            errorCode = status.getInt("code", 0); //note, JSOModel.get() returns 0 as null
            if (mode.equals(MODE_REGISTER)) {
                newDisplayId = obj.get("displayId", "");
                EnterClaimIdWidget.getInstance(false).RegisterDisplayCallback(errorCode, statusMessage,
                        newDisplayId);
            } else if (mode.equals(MODE_VALIDATE)) {
                EnterDisplayIdWidget.getInstance().ValidateDisplayIdCallback(errorCode, statusMessage);
            }
        }
    }

    private static native void callUrlNative(String url, String mode) /*-{
                                                                      try {
                                                                      $wnd.writeToLog("Register Display request - start");
                                                                          
                                                                      $wnd.$.getJSON(url,
                                                                      {format: 'json'},
                                                                      function(result) {
                                                                      try { 
                                                                      //                 debugger;
                                                                          
                                                                      $wnd.writeToLog("Register Display response - active");
                                                                      //http://stackoverflow.com/questions/6257532/gwt-jsni-boolean
                                                                      @com.risevision.viewer.client.data.DisplayRegistrationController::processResponse(Lcom/google/gwt/core/client/JavaScriptObject;Ljava/lang/String;)(result,mode);
                                                                      }
                                                                      catch (err) {
                                                                      $wnd.writeToLog("Register Display request failed - " + url + " - " + err.message);
                                                                      }
                                                                      }
                                                                      );
                                                                      }
                                                                      catch (err) {
                                                                      $wnd.writeToLog("Register Display request error - " + url + " - " + err.message);
                                                                      }
                                                                      }-*/;

}