// Copyright (C) 2009 Google Inc.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.google.caja.demos.playground.client;
import com.google.caja.demos.playground.client.ui.PlaygroundView;
import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.core.client.GWT;
import com.google.gwt.event.logical.shared.ValueChangeEvent;
import com.google.gwt.event.logical.shared.ValueChangeHandler;
import com.google.gwt.user.client.History;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.rpc.AsyncCallback;
/**
* Main entry point for GWT-based Caja playground
*
* @author Jasvir Nagra (jasvir@gmail.com)
*/
public class Playground implements EntryPoint, ValueChangeHandler<String> {
private PlaygroundView gui;
private final PlaygroundServiceAsync cajolingService =
GWT.create(PlaygroundService.class);
public void loadSource(String url) {
loadSource(Window.Location.getHref(), url);
}
public void loadSource(String base, String url) {
gui.setLoading(true);
gui.setUrl(url);
if (!url.equals(History.getToken())) {
History.newItem(url);
}
cajolingService.fetch(base, url, new AsyncCallback<String>() {
public void onFailure(Throwable caught) {
gui.setLoading(false);
gui.addCompileMessage(caught.getMessage());
gui.selectTab(PlaygroundView.Tabs.COMPILE_WARNINGS);
}
public void onSuccess(String result) {
gui.setLoading(false);
gui.setOriginalSource(result);
gui.setCajoledSource("", "");
gui.selectTab(PlaygroundView.Tabs.SOURCE);
}
});
}
public void clearPolicy() {
gui.setPolicySource("");
}
public void loadPolicy(String url) {
gui.setLoading(true);
gui.setPolicyUrl(url);
cajolingService.fetch(Window.Location.getHref(), url,
new AsyncCallback<String>() {
public void onFailure(Throwable caught) {
gui.setLoading(false);
gui.addCompileMessage(caught.getMessage());
gui.selectTab(PlaygroundView.Tabs.COMPILE_WARNINGS);
}
public void onSuccess(String result) {
gui.setLoading(false);
gui.setPolicySource(result);
gui.selectTab(PlaygroundView.Tabs.POLICY);
}
});
}
public void cajole(String uri, String input, final String policy,
boolean debugMode, Boolean es5, final String opt_idClass) {
if (null == es5 || !es5) {
cajoleES53(uri, input, policy, debugMode, opt_idClass);
} else {
cajoleES5(uri, input, policy, debugMode, opt_idClass);
}
}
/**
* @param uri not used.
* @param debugMode not used.
*/
public void cajoleES5(String uri, String input, final String policy,
boolean debugMode, final String opt_idClass) {
gui.setLoading(true);
gui.setCajoledSource("", "");
gui.selectTab(PlaygroundView.Tabs.RENDER);
gui.setRenderedResult(true /* es5 */, uri,
policy, input, null, opt_idClass);
gui.setLoading(false);
}
public void cajoleES53(final String uri, String input, final String policy,
boolean debugMode, final String opt_idClass) {
gui.setLoading(true);
cajolingService.cajole(
Window.Location.getHref(), uri, input, debugMode, opt_idClass,
new AsyncCallback<CajolingServiceResult>() {
public void onFailure(Throwable caught) {
gui.setLoading(false);
gui.addCompileMessage(caught.getMessage());
}
public void onSuccess(CajolingServiceResult result) {
gui.setLoading(false);
if (result == null) {
gui.addCompileMessage("An unknown error occurred");
gui.selectTab(PlaygroundView.Tabs.COMPILE_WARNINGS);
return;
}
for (String message: result.getMessages()) {
gui.addCompileMessage(message);
}
if (result.getHtml() != null) {
gui.setCajoledSource(result.getHtml(), result.getJavascript());
gui.setRenderedResult(false /* es5 */, uri,
policy, result.getHtml(), result.getJavascript(), opt_idClass);
gui.selectTab(PlaygroundView.Tabs.RENDER);
} else {
gui.setCajoledSource(null, null);
gui.setRenderedResult(false, uri, null, null, null, null);
gui.selectTab(PlaygroundView.Tabs.COMPILE_WARNINGS);
}
}
});
}
public void onValueChange(ValueChangeEvent<String> change) {
String historyToken = change.getValue();
if (null == historyToken || "".equals(historyToken))
return;
loadSource(historyToken);
}
public void onModuleLoad() {
String query = Window.Location.getParameter("es5");
Boolean mode = null == query ? null :
query.equalsIgnoreCase("true")
? Boolean.TRUE
: query.equalsIgnoreCase("false")
? Boolean.FALSE
: null;
gui = new PlaygroundView(this, mode);
gui.setLoading(true);
cajolingService.getBuildInfo(new AsyncCallback<String>() {
public void onFailure(Throwable caught) {
gui.setLoading(false);
gui.addCompileMessage(caught.getMessage());
gui.setVersion("Unknown");
}
public void onSuccess(String result) {
gui.setLoading(false);
gui.setVersion(result);
}
});
History.addValueChangeHandler(this);
History.fireCurrentHistoryState();
}
}