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| | | /*
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| | | Copyright 2013 gitblit.com.
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| | | Licensed under the Apache License, Version 2.0 (the "License");
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| | | you may not use this file except in compliance with the License.
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| | | You may obtain a copy of the License at
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| | | http://www.apache.org/licenses/LICENSE-2.0
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| | | Unless required by applicable law or agreed to in writing, software
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| | | distributed under the License is distributed on an "AS IS" BASIS,
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| | | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| | | See the License for the specific language governing permissions and
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| | | limitations under the License.
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| | | */
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| | | package com.gitblit.wicket.ng;
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| | | import java.text.MessageFormat;
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| | | import java.util.HashMap;
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| | | import java.util.Map;
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| | | import org.apache.wicket.ResourceReference;
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| | | import org.apache.wicket.markup.html.IHeaderContributor;
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| | | import org.apache.wicket.markup.html.IHeaderResponse;
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| | | import com.google.gson.Gson;
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| | | import com.google.gson.GsonBuilder;
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| | | /**
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| | | * Simple AngularJS data controller which injects scoped objects as static,
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| | | * embedded JSON within the generated page. This allows use of AngularJS
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| | | * client-side databinding (magic) with server-generated pages.
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| | | * |
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| | | * @author James Moger
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| | | * |
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| | | */
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| | | public class NgController implements IHeaderContributor {
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| | | private static final long serialVersionUID = 1L;
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| | | final String name;
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| | | final Map<String, Object> variables;
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| | | public NgController(String name) {
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| | | this.name = name;
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| | | this.variables = new HashMap<String, Object>();
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| | | }
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| | | public void addVariable(String name, Object o) {
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| | | variables.put(name, o);
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| | | }
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| | | @Override
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| | | public void renderHead(IHeaderResponse response) {
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| | | // add Google AngularJS reference
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| | | response.renderJavascriptReference(new ResourceReference(NgController.class, "angular.js"));
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| | | Gson gson = new GsonBuilder().create();
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| | | StringBuilder sb = new StringBuilder();
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| | | line(sb, MessageFormat.format("<!-- AngularJS {0} data controller -->", name));
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| | | line(sb, MessageFormat.format("function {0}($scope) '{'", name));
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| | | for (Map.Entry<String, Object> entry : variables.entrySet()) {
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| | | String var = entry.getKey();
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| | | Object o = entry.getValue();
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| | | String json = gson.toJson(o);
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| | | line(sb, MessageFormat.format("\t$scope.{0} = {1};", var, json));
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| | | }
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| | | line(sb, "}");
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| | | response.renderJavascript(sb.toString(), null);
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| | | }
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| | | private void line(StringBuilder sb, String line) {
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| | | sb.append(line);
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| | | sb.append('\n');
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| | | }
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| | | } |
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