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1
18
19 package org.apache.roller.ui.core.tags.menu;
20
21 import java.util.ArrayList  ;
22 import java.util.Iterator ;
23 import java.util.List ;
24 import java.util.Vector ;
25 import javax.servlet.ServletContext ;
26
27 import javax.servlet.http.HttpServletRequest ;
28 import javax.servlet.http.HttpSession ;
29 import javax.servlet.jsp.PageContext ;
30 import org.apache.struts.Globals;
31 import org.apache.struts.action.ActionMapping;
32 import org.apache.struts.config.ForwardConfig;
33 import org.apache.struts.config.ModuleConfig;
34 import org.apache.struts.util.RequestUtils;
35
36 import org.apache.roller.RollerException;
37 import org.apache.roller.ui.core.RollerContext;
38
39
41
42 public class MenuImpl extends BaseRollerMenu implements Menu {
43 private String mMenuId = null;
44
45
46 Vector mMenuItems = new Vector ();
47
48
49 boolean mDefault = false;
50
51 public MenuImpl() {}
52
53
54 public MenuImpl(String n) { super(n, null); }
55
56
57 public void addItem( MenuItemImpl item ) { mMenuItems.addElement(item); };
58
59
60 public void setMenuId( String v ) { mMenuId = v; }
61
62
63 public String getMenuId() { return mMenuId; }
64
65
66 public Vector getMenuItems() { return mMenuItems; }
67
68
70 public MenuItem getSelectedMenuItem( HttpServletRequest req ) throws RollerException {
71 return getSelectedMenuItem( req, true ) ;
72 }
73
74
78 public MenuItem getSelectedMenuItem( HttpServletRequest req,
79 boolean returnDefault ) throws RollerException {
80 MenuItemImpl def = null;
81 MenuItemImpl selected = null;
82 for ( int i=0; i<mMenuItems.size(); i++ ) {
83 MenuItemImpl item = (MenuItemImpl)mMenuItems.elementAt(i);
84 if ( item.isSelected( req ) ) {
85 selected = item;
86 break;
87 }
88 if ( item.isPermitted(req) && def == null) {
90 def = item;
91 }
92 }
93 if ( selected != null ) {
94 return selected;
95 } else if ( returnDefault ) {
96 return def;
97 } else {
98 return null;
99 }
100 }
101
102
106 public MenuItem getDefaultMenuItem( HttpServletRequest req )
107 throws RollerException {
108 MenuItemImpl def = null;
109 MenuItemImpl selected = null;
110 for ( int i=0; i<mMenuItems.size(); i++ ) {
111 MenuItemImpl item = (MenuItemImpl)mMenuItems.elementAt(i);
113 if (item.isPermitted(req) && def == null) {
114 def = item;
115 }
116 }
117 return def;
118 }
119
120
124 public boolean isSelected( HttpServletRequest req ) throws RollerException {
125 boolean selected = false;
126 HttpSession ses = req.getSession(false);
127
128 String menuKey = req.getParameter(RollerMenuModel.MENU_KEY );
130 if (null == menuKey) {
131 menuKey = (String )req.getAttribute(RollerMenuModel.MENU_KEY);
132 }
133 if (menuKey != null && menuKey.equals(mName)) {
134 selected = true;
135 }
136 else if (getSelectedMenuItem(req, false) != null) {
138 selected = true;
139 }
140 else if (mForward != null) {
142 ServletContext ctx = RollerContext.getServletContext();
143 ModuleConfig mConfig = RequestUtils.getModuleConfig(req, ctx);
144 ActionMapping amapping = (ActionMapping)req.getAttribute(Globals.MAPPING_KEY);
145 List fconfigs = new ArrayList ();
146 fconfigs.add(mConfig.findForwardConfig(mForward));
147 if (mSubforwards != null) {
148 String [] subforwards = mSubforwards.split(",");
149 for (int i=0; i<subforwards.length; i++) {
150 fconfigs.add(mConfig.findForwardConfig(subforwards[i]));
151 }
152 }
153 for (Iterator iter = fconfigs.iterator(); iter.hasNext();) {
154 ForwardConfig fconfig = (ForwardConfig)iter.next();
155 String fwdPath = fconfig.getPath();
156 int end = fwdPath.indexOf(".do");
157 fwdPath = (end == -1) ? fwdPath : fwdPath.substring(0, end);
158 if (fwdPath.equals(amapping.getPath())) {
159 selected = true;
160 break;
161 }
162 }
163 }
164 return selected;
165 }
166
167
168 public String getUrl(PageContext pctx) {
169 String url = null;
170 try {
171 if (mForward == null && mMenuItems != null && mMenuItems.size() > 0) {
173 HttpServletRequest req = (HttpServletRequest )pctx.getRequest();
174 String surl = getDefaultMenuItem( req ).getUrl( pctx );
175 StringBuffer sb = new StringBuffer ( surl );
176 if ( surl.indexOf("?") == -1 ) {
177 sb.append( "?" );
178 } else {
179 sb.append( "&" );
180 }
181 sb.append( RollerMenuModel.MENU_KEY );
182 sb.append( "=" );
183 sb.append( getName() );
184 url = sb.toString();
185 } else {
186 return super.getUrl(pctx);
187 }
188 } catch (Exception e) {
189 pctx.getServletContext().log(
190 "ERROR in menu creating URL",e);
191 }
192 return url;
193 }
194
195 }
196
197 |
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