gerrit-gwtui/src/main/java/com/google/gerrit/client/change/Labels.java - gerrit - Git at Google

 // Copyright (C) 2013 The Android Open Source Project
 //
 // 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.gerrit.client.change;

 import com.google.gerrit.client.Gerrit;
 import com.google.gerrit.client.account.AccountInfo;
 import com.google.gerrit.client.account.AccountInfo.AvatarInfo;
 import com.google.gerrit.client.changes.ChangeApi;
 import com.google.gerrit.client.changes.ChangeInfo;
 import com.google.gerrit.client.changes.ChangeInfo.ApprovalInfo;
 import com.google.gerrit.client.changes.ChangeInfo.LabelInfo;
 import com.google.gerrit.client.changes.Util;
 import com.google.gerrit.client.rpc.GerritCallback;
 import com.google.gerrit.client.rpc.Natives;
 import com.google.gerrit.common.PageLinks;
 import com.google.gerrit.common.data.LabelValue;
 import com.google.gerrit.reviewdb.client.Change;
 import com.google.gwt.core.client.JavaScriptObject;
 import com.google.gwt.dom.client.Element;
 import com.google.gwt.dom.client.NativeEvent;
 import com.google.gwt.user.client.DOM;
 import com.google.gwt.user.client.ui.Grid;
 import com.google.gwt.user.client.ui.ImageResourceRenderer;
 import com.google.gwt.user.client.ui.Widget;
 import com.google.gwtexpui.safehtml.client.SafeHtml;
 import com.google.gwtexpui.safehtml.client.SafeHtmlBuilder;

 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.Comparator;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;

 /** Displays a table of label and reviewer scores. */
 class Labels extends Grid {
   private static final String DATA_ID = "data-id";
   private static final String REMOVE;

   static {
     REMOVE = DOM.createUniqueId().replace('-', '_');
     init(REMOVE);
   }

   private static final native void init(String r) /*-{
     $wnd[r] = $entry(function(e) {
       @com.google.gerrit.client.change.Labels::onRemove(Lcom/google/gwt/dom/client/NativeEvent;)(e)
     });
   }-*/;

   private static void onRemove(NativeEvent event) {
     Integer user = getDataId(event);
     if (user != null) {
       final ChangeScreen2 screen = ChangeScreen2.get(event);
       ChangeApi.reviewer(screen.getChangeId().get(), user).delete(
           new GerritCallback<JavaScriptObject>() {
             @Override
             public void onSuccess(JavaScriptObject result) {
               if (screen.isCurrentView()) {
                 Gerrit.display(PageLinks.toChange(screen.getChangeId()));
               }
             }
           });
     }
   }

   private static Integer getDataId(NativeEvent event) {
     Element e = event.getEventTarget().cast();
     while (e != null) {
       String v = e.getAttribute(DATA_ID);
       if (!v.isEmpty()) {
         return Integer.parseInt(v);
       }
       e = e.getParentElement();
     }
     return null;
   }

   private ChangeScreen2.Style style;
   private Element statusText;

   void init(ChangeScreen2.Style style, Element statusText) {
     this.style = style;
     this.statusText = statusText;
   }

   boolean set(ChangeInfo info, boolean current) {
     List<String> names = new ArrayList<String>(info.labels());
     Collections.sort(names);

     boolean canSubmit = info.status().isOpen();
     resize(names.size(), 2);

     for (int row = 0; row < names.size(); row++) {
       String name = names.get(row);
       LabelInfo label = info.label(name);
       setText(row, 0, name);
       if (label.all() != null) {
         setWidget(row, 1, renderUsers(label));
       }
       getCellFormatter().setStyleName(row, 0, style.labelName());
       getCellFormatter().addStyleName(row, 0, getStyleForLabel(label));

       if (canSubmit && info.status() == Change.Status.NEW) {
         switch (label.status()) {
           case NEED:
             if (current) {
               statusText.setInnerText("Needs " + name);
             }
             canSubmit = false;
             break;
           case REJECT:
           case IMPOSSIBLE:
             if (current) {
               statusText.setInnerText("Not " + name);
             }
             canSubmit = false;
             break;
           default:
             break;
           }
       }
     }
     return canSubmit;
   }

   private Widget renderUsers(LabelInfo label) {
     Map<Integer, List<ApprovalInfo>> m = new HashMap<Integer, List<ApprovalInfo>>(4);
     int approved = 0, rejected = 0;

     for (ApprovalInfo ai : Natives.asList(label.all())) {
       if (ai.value() != 0) {
         List<ApprovalInfo> l = m.get(Integer.valueOf(ai.value()));
         if (l == null) {
           l = new ArrayList<ApprovalInfo>(label.all().length());
           m.put(Integer.valueOf(ai.value()), l);
         }
         l.add(ai);

         if (isRejected(label, ai)) {
           rejected = ai.value();
         } else if (isApproved(label, ai)) {
           approved = ai.value();
         }
       }
     }

     SafeHtmlBuilder html = new SafeHtmlBuilder();
     for (Integer v : sort(m.keySet(), approved, rejected)) {
       if (!html.isEmpty()) {
         html.br();
       }

       String val = LabelValue.formatValue(v.shortValue());
       html.openSpan();
       html.setAttribute("title", label.value_text(val));
       if (v.intValue() == approved) {
         html.setStyleName(style.label_ok());
       } else if (v.intValue() == rejected) {
         html.setStyleName(style.label_reject());
       }
       html.append(val).append(" ");
       html.append(formatUserList(style, m.get(v),
           Collections.<Integer> emptySet()));
       html.closeSpan();
     }
     return html.toBlockWidget();
   }

   private static List<Integer> sort(Set<Integer> keySet, int a, int b) {
     List<Integer> r = new ArrayList<Integer>(keySet);
     Collections.sort(r);
     if (keySet.contains(a)) {
       r.remove(Integer.valueOf(a));
       r.add(0, a);
     } else if (keySet.contains(b)) {
       r.remove(Integer.valueOf(b));
       r.add(0, b);
     }
     return r;
   }

   private static boolean isApproved(LabelInfo label, ApprovalInfo ai) {
     return label.approved() != null
         && label.approved()._account_id() == ai._account_id();
   }

   private static boolean isRejected(LabelInfo label, ApprovalInfo ai) {
     return label.rejected() != null
         && label.rejected()._account_id() == ai._account_id();
   }

   private String getStyleForLabel(LabelInfo label) {
     switch (label.status()) {
       case OK:
         return style.label_ok();
       case NEED:
         return style.label_need();
       case REJECT:
       case IMPOSSIBLE:
         return style.label_reject();
       default:
       case MAY:
         return style.label_may();
     }
   }

   static SafeHtml formatUserList(ChangeScreen2.Style style,
       Collection<? extends AccountInfo> in,
       Set<Integer> removable) {
     List<AccountInfo> users = new ArrayList<AccountInfo>(in);
     Collections.sort(users, new Comparator<AccountInfo>() {
       @Override
       public int compare(AccountInfo a, AccountInfo b) {
         String as = name(a);
         String bs = name(b);
         if (as.isEmpty()) {
           return 1;
         } else if (bs.isEmpty()) {
           return -1;
         }
         return as.compareTo(bs);
       }

       private String name(AccountInfo a) {
         if (a.name() != null) {
           return a.name();
         } else if (a.email() != null) {
           return a.email();
         }
         return "";
       }
     });

     SafeHtmlBuilder html = new SafeHtmlBuilder();
     Iterator<? extends AccountInfo> itr = users.iterator();
     while (itr.hasNext()) {
       AccountInfo ai = itr.next();
       AvatarInfo img = ai.avatar(AvatarInfo.DEFAULT_SIZE);
       String name;
       if (ai.name() != null) {
         name = ai.name();
       } else if (ai.email() != null) {
         name = ai.email();
       } else {
         name = Integer.toString(ai._account_id());
       }

       html.openSpan()
           .setAttribute("role", "listitem")
           .setAttribute(DATA_ID, ai._account_id())
           .setStyleName(style.label_user());
       if (img != null) {
         html.openElement("img")
             .setStyleName(style.avatar())
             .setAttribute("src", img.url());
         if (img.width() > 0) {
           html.setAttribute("width", img.width());
         }
         if (img.height() > 0) {
           html.setAttribute("height", img.height());
         }
         html.closeSelf();
       }
       html.append(name);
       if (removable.contains(ai._account_id())) {
         html.openElement("button")
             .setAttribute("title", Util.M.removeReviewer(name))
             .setAttribute("onclick", REMOVE + "(event)")
             .append(new ImageResourceRenderer().render(Resources.I.remove_reviewer()))
             .closeElement("button");
       }
       html.closeSpan();
       if (itr.hasNext()) {
         html.append(' ');
       }
     }
     return html;
   }
 }
	// Copyright (C) 2013 The Android Open Source Project
	//
	// 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.gerrit.client.change;

	import com.google.gerrit.client.Gerrit;
	import com.google.gerrit.client.account.AccountInfo;
	import com.google.gerrit.client.account.AccountInfo.AvatarInfo;
	import com.google.gerrit.client.changes.ChangeApi;
	import com.google.gerrit.client.changes.ChangeInfo;
	import com.google.gerrit.client.changes.ChangeInfo.ApprovalInfo;
	import com.google.gerrit.client.changes.ChangeInfo.LabelInfo;
	import com.google.gerrit.client.changes.Util;
	import com.google.gerrit.client.rpc.GerritCallback;
	import com.google.gerrit.client.rpc.Natives;
	import com.google.gerrit.common.PageLinks;
	import com.google.gerrit.common.data.LabelValue;
	import com.google.gerrit.reviewdb.client.Change;
	import com.google.gwt.core.client.JavaScriptObject;
	import com.google.gwt.dom.client.Element;
	import com.google.gwt.dom.client.NativeEvent;
	import com.google.gwt.user.client.DOM;
	import com.google.gwt.user.client.ui.Grid;
	import com.google.gwt.user.client.ui.ImageResourceRenderer;
	import com.google.gwt.user.client.ui.Widget;
	import com.google.gwtexpui.safehtml.client.SafeHtml;
	import com.google.gwtexpui.safehtml.client.SafeHtmlBuilder;

	import java.util.ArrayList;
	import java.util.Collection;
	import java.util.Collections;
	import java.util.Comparator;
	import java.util.HashMap;
	import java.util.Iterator;
	import java.util.List;
	import java.util.Map;
	import java.util.Set;

	/** Displays a table of label and reviewer scores. */
	class Labels extends Grid {
	private static final String DATA_ID = "data-id";
	private static final String REMOVE;

	static {
	REMOVE = DOM.createUniqueId().replace('-', '_');
	init(REMOVE);
	}

	private static final native void init(String r) /*-{
	$wnd[r] = $entry(function(e) {
	@com.google.gerrit.client.change.Labels::onRemove(Lcom/google/gwt/dom/client/NativeEvent;)(e)
	});
	}-*/;

	private static void onRemove(NativeEvent event) {
	Integer user = getDataId(event);
	if (user != null) {
	final ChangeScreen2 screen = ChangeScreen2.get(event);
	ChangeApi.reviewer(screen.getChangeId().get(), user).delete(
	new GerritCallback<JavaScriptObject>() {
	@Override
	public void onSuccess(JavaScriptObject result) {
	if (screen.isCurrentView()) {
	Gerrit.display(PageLinks.toChange(screen.getChangeId()));
	}
	}
	});
	}
	}

	private static Integer getDataId(NativeEvent event) {
	Element e = event.getEventTarget().cast();
	while (e != null) {
	String v = e.getAttribute(DATA_ID);
	if (!v.isEmpty()) {
	return Integer.parseInt(v);
	}
	e = e.getParentElement();
	}
	return null;
	}

	private ChangeScreen2.Style style;
	private Element statusText;

	void init(ChangeScreen2.Style style, Element statusText) {
	this.style = style;
	this.statusText = statusText;
	}

	boolean set(ChangeInfo info, boolean current) {
	List<String> names = new ArrayList<String>(info.labels());
	Collections.sort(names);

	boolean canSubmit = info.status().isOpen();
	resize(names.size(), 2);

	for (int row = 0; row < names.size(); row++) {
	String name = names.get(row);
	LabelInfo label = info.label(name);
	setText(row, 0, name);
	if (label.all() != null) {
	setWidget(row, 1, renderUsers(label));
	}
	getCellFormatter().setStyleName(row, 0, style.labelName());
	getCellFormatter().addStyleName(row, 0, getStyleForLabel(label));

	if (canSubmit && info.status() == Change.Status.NEW) {
	switch (label.status()) {
	case NEED:
	if (current) {
	statusText.setInnerText("Needs " + name);
	}
	canSubmit = false;
	break;
	case REJECT:
	case IMPOSSIBLE:
	if (current) {
	statusText.setInnerText("Not " + name);
	}
	canSubmit = false;
	break;
	default:
	break;
	}
	}
	}
	return canSubmit;
	}

	private Widget renderUsers(LabelInfo label) {
	Map<Integer, List<ApprovalInfo>> m = new HashMap<Integer, List<ApprovalInfo>>(4);
	int approved = 0, rejected = 0;

	for (ApprovalInfo ai : Natives.asList(label.all())) {
	if (ai.value() != 0) {
	List<ApprovalInfo> l = m.get(Integer.valueOf(ai.value()));
	if (l == null) {
	l = new ArrayList<ApprovalInfo>(label.all().length());
	m.put(Integer.valueOf(ai.value()), l);
	}
	l.add(ai);

	if (isRejected(label, ai)) {
	rejected = ai.value();
	} else if (isApproved(label, ai)) {
	approved = ai.value();
	}
	}
	}

	SafeHtmlBuilder html = new SafeHtmlBuilder();
	for (Integer v : sort(m.keySet(), approved, rejected)) {
	if (!html.isEmpty()) {
	html.br();
	}

	String val = LabelValue.formatValue(v.shortValue());
	html.openSpan();
	html.setAttribute("title", label.value_text(val));
	if (v.intValue() == approved) {
	html.setStyleName(style.label_ok());
	} else if (v.intValue() == rejected) {
	html.setStyleName(style.label_reject());
	}
	html.append(val).append(" ");
	html.append(formatUserList(style, m.get(v),
	Collections.<Integer> emptySet()));
	html.closeSpan();
	}
	return html.toBlockWidget();
	}

	private static List<Integer> sort(Set<Integer> keySet, int a, int b) {
	List<Integer> r = new ArrayList<Integer>(keySet);
	Collections.sort(r);
	if (keySet.contains(a)) {
	r.remove(Integer.valueOf(a));
	r.add(0, a);
	} else if (keySet.contains(b)) {
	r.remove(Integer.valueOf(b));
	r.add(0, b);
	}
	return r;
	}

	private static boolean isApproved(LabelInfo label, ApprovalInfo ai) {
	return label.approved() != null
	&& label.approved()._account_id() == ai._account_id();
	}

	private static boolean isRejected(LabelInfo label, ApprovalInfo ai) {
	return label.rejected() != null
	&& label.rejected()._account_id() == ai._account_id();
	}

	private String getStyleForLabel(LabelInfo label) {
	switch (label.status()) {
	case OK:
	return style.label_ok();
	case NEED:
	return style.label_need();
	case REJECT:
	case IMPOSSIBLE:
	return style.label_reject();
	default:
	case MAY:
	return style.label_may();
	}
	}

	static SafeHtml formatUserList(ChangeScreen2.Style style,
	Collection<? extends AccountInfo> in,
	Set<Integer> removable) {
	List<AccountInfo> users = new ArrayList<AccountInfo>(in);
	Collections.sort(users, new Comparator<AccountInfo>() {
	@Override
	public int compare(AccountInfo a, AccountInfo b) {
	String as = name(a);
	String bs = name(b);
	if (as.isEmpty()) {
	return 1;
	} else if (bs.isEmpty()) {
	return -1;
	}
	return as.compareTo(bs);
	}

	private String name(AccountInfo a) {
	if (a.name() != null) {
	return a.name();
	} else if (a.email() != null) {
	return a.email();
	}
	return "";
	}
	});

	SafeHtmlBuilder html = new SafeHtmlBuilder();
	Iterator<? extends AccountInfo> itr = users.iterator();
	while (itr.hasNext()) {
	AccountInfo ai = itr.next();
	AvatarInfo img = ai.avatar(AvatarInfo.DEFAULT_SIZE);
	String name;
	if (ai.name() != null) {
	name = ai.name();
	} else if (ai.email() != null) {
	name = ai.email();
	} else {
	name = Integer.toString(ai._account_id());
	}

	html.openSpan()
	.setAttribute("role", "listitem")
	.setAttribute(DATA_ID, ai._account_id())
	.setStyleName(style.label_user());
	if (img != null) {
	html.openElement("img")
	.setStyleName(style.avatar())
	.setAttribute("src", img.url());
	if (img.width() > 0) {
	html.setAttribute("width", img.width());
	}
	if (img.height() > 0) {
	html.setAttribute("height", img.height());
	}
	html.closeSelf();
	}
	html.append(name);
	if (removable.contains(ai._account_id())) {
	html.openElement("button")
	.setAttribute("title", Util.M.removeReviewer(name))
	.setAttribute("onclick", REMOVE + "(event)")
	.append(new ImageResourceRenderer().render(Resources.I.remove_reviewer()))
	.closeElement("button");
	}
	html.closeSpan();
	if (itr.hasNext()) {
	html.append(' ');
	}
	}
	return html;
	}
	}