Add UiAction to create change from project info page

Change-Id: I2c9f23e644a020bcd30a478fbd3156e94a0c00d5

gerrit-gwtui/src/main/java/com/google/gerrit/client/admin/AdminConstants.java

@@ -138,4 +138,9 @@ public interface AdminConstants extends Constants {
 
   String pagedListPrev();
   String pagedListNext();
+
+  String buttonCreate();
+  String buttonCreateDescription();
+  String buttonCreateChange();
+  String buttonCreateChangeDescription();
 }

gerrit-gwtui/src/main/java/com/google/gerrit/client/admin/AdminConstants.properties

@@ -162,3 +162,8 @@ sectionTypeSection = Section:
 sectionNames = \
   GLOBAL_CAPABILITIES
 GLOBAL_CAPABILITIES = Global Capabilities
+
+buttonCreate = Create
+buttonCreateDescription = Insert the description of the change.
+buttonCreateChange = Create Change
+buttonCreateChangeDescription = Create change directly in the browser.

gerrit-gwtui/src/main/java/com/google/gerrit/client/admin/CreateChangeAction.java

@@ -0,0 +1,57 @@
+// Copyright (C) 2014 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.admin;
+
+import com.google.gerrit.client.Gerrit;
+import com.google.gerrit.client.changes.ChangeApi;
+import com.google.gerrit.client.changes.ChangeInfo;
+import com.google.gerrit.client.rpc.GerritCallback;
+import com.google.gerrit.client.ui.CreateChangeDialog;
+import com.google.gerrit.common.PageLinks;
+import com.google.gerrit.reviewdb.client.Project;
+import com.google.gwt.user.client.ui.Button;
+
+class CreateChangeAction {
+  static void call(Button b, final String project) {
+    // TODO Replace CreateChangeDialog with a nicer looking display.
+    b.setEnabled(false);
+    new CreateChangeDialog(b, new Project.NameKey(project)) {
+      {
+        sendButton.setText(Util.C.buttonCreate());
+        message.setText(Util.C.buttonCreateDescription());
+      }
+
+      @Override
+      public void onSend() {
+        ChangeApi.createChange(project, getDestinationBranch(),
+          message.getText(),
+          new GerritCallback<ChangeInfo>() {
+            @Override
+            public void onSuccess(ChangeInfo result) {
+              sent = true;
+              hide();
+              Gerrit.display(PageLinks.toChange(result.legacy_id()));
+            }
+
+            @Override
+            public void onFailure(Throwable caught) {
+              enableButtons(true);
+              super.onFailure(caught);
+            }
+        });
+      }
+    }.center();
+  }
+}

gerrit-gwtui/src/main/java/com/google/gerrit/client/admin/ProjectInfoScreen.java

@@ -565,10 +565,27 @@ public class ProjectInfoScreen extends ProjectScreen {
     actionsPanel.setStyleName(Gerrit.RESOURCES.css().projectActions());
     actionsPanel.setVisible(true);
     actionsGrid.add(Util.C.headingCommands(), actionsPanel);
+
     for (String id : actions.keySet()) {
       actionsPanel.add(new ActionButton(getProjectKey(),
           actions.get(id)));
     }
+
+    if (Gerrit.isSignedIn()) {
+      actionsPanel.add(createChangeAction());
+    }
+  }
+
+  private Button createChangeAction() {
+    final Button createChange = new Button(Util.C.buttonCreateChange());
+    createChange.setTitle(Util.C.buttonCreateChangeDescription());
+    createChange.addClickHandler(new ClickHandler() {
+      @Override
+      public void onClick(ClickEvent event) {
+        CreateChangeAction.call(createChange, getProjectKey().get());
+      }
+    });
+    return createChange;
   }
 
   private void doSave() {

gerrit-gwtui/src/main/java/com/google/gerrit/client/changes/ChangeApi.java

@@ -34,6 +34,17 @@ public class ChangeApi {
     call(id, "abandon").post(input, cb);
   }
 
+  /** Create a new change. */
+  public static void createChange(String project, String branch,
+      String subject, AsyncCallback<ChangeInfo> cb) {
+    CreateChangeInput input = CreateChangeInput.create();
+    input.project(emptyToNull(project));
+    input.branch(emptyToNull(branch));
+    input.subject(emptyToNull(subject));
+
+    new RestApi("/changes/").post(input, cb);
+  }
+
   /** Restore a previously abandoned change to be open again. */
   public static void restore(int id, String msg, AsyncCallback<ChangeInfo> cb) {
     Input input = Input.create();
@@ -194,6 +205,19 @@ public class ChangeApi {
     }
   }
 
+  private static class CreateChangeInput extends JavaScriptObject {
+    static CreateChangeInput create() {
+      return (CreateChangeInput) createObject();
+    }
+
+    public final native void branch(String b) /*-{ if(b)this.branch=b; }-*/;
+    public final native void project(String p) /*-{ if(p)this.project=p; }-*/;
+    public final native void subject(String s) /*-{ if(s)this.subject=s; }-*/;
+
+    protected CreateChangeInput() {
+    }
+  }
+
   private static class CherryPickInput extends JavaScriptObject {
     static CherryPickInput create() {
       return (CherryPickInput) createObject();

gerrit-gwtui/src/main/java/com/google/gerrit/client/ui/CreateChangeDialog.java

@@ -0,0 +1,106 @@
+// Copyright (C) 2014 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.ui;
+
+import com.google.gerrit.client.Gerrit;
+import com.google.gerrit.client.projects.BranchInfo;
+import com.google.gerrit.client.projects.ProjectApi;
+import com.google.gerrit.client.rpc.GerritCallback;
+import com.google.gerrit.client.rpc.Natives;
+import com.google.gerrit.reviewdb.client.Branch;
+import com.google.gerrit.reviewdb.client.Project;
+import com.google.gwt.core.client.JsArray;
+import com.google.gwt.user.client.ui.FlowPanel;
+import com.google.gwt.user.client.ui.FocusWidget;
+import com.google.gwt.user.client.ui.SuggestBox;
+import com.google.gwt.user.client.ui.SuggestOracle.Suggestion;
+import com.google.gwtexpui.globalkey.client.GlobalKey;
+import com.google.gwtexpui.safehtml.client.HighlightSuggestOracle;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public abstract class CreateChangeDialog extends ActionDialog {
+  private SuggestBox newChange;
+  private List<BranchInfo> branches;
+
+  public CreateChangeDialog(final FocusWidget enableOnFailure, Project.NameKey project) {
+    super(enableOnFailure, true, Util.C.dialogCreateChangeTitle(),
+        Util.C.dialogCreateChangeHeading());
+    ProjectApi.getBranches(project,
+        new GerritCallback<JsArray<BranchInfo>>() {
+          @Override
+          public void onSuccess(JsArray<BranchInfo> result) {
+            branches = Natives.asList(result);
+          }
+        });
+
+    newChange = new SuggestBox(new HighlightSuggestOracle() {
+      @Override
+      protected void onRequestSuggestions(Request request, Callback done) {
+        List<BranchSuggestion> suggestions = new ArrayList<>();
+        for (BranchInfo b : branches) {
+          if (b.ref().contains(request.getQuery())) {
+            suggestions.add(new BranchSuggestion(b));
+          }
+        }
+        done.onSuggestionsReady(request, new Response(suggestions));
+      }
+    });
+
+    newChange.setWidth("100%");
+    newChange.getElement().getStyle().setProperty("boxSizing", "border-box");
+    message.setCharacterWidth(70);
+
+    FlowPanel mwrap = new FlowPanel();
+    mwrap.setStyleName(Gerrit.RESOURCES.css().commentedActionMessage());
+    mwrap.add(newChange);
+
+    panel.insert(mwrap, 0);
+    panel.insert(new SmallHeading(Util.C.newChangeBranchSuggestion()), 0);
+  }
+
+  @Override
+  public void center() {
+    super.center();
+    GlobalKey.dialog(this);
+    newChange.setFocus(true);
+  }
+
+  public String getDestinationBranch() {
+    return newChange.getText();
+  }
+
+  class BranchSuggestion implements Suggestion {
+    private BranchInfo branch;
+
+    public BranchSuggestion(BranchInfo branch) {
+      this.branch = branch;
+    }
+
+    @Override
+    public String getDisplayString() {
+      if (branch.ref().startsWith(Branch.R_HEADS)) {
+        return branch.ref().substring(Branch.R_HEADS.length());
+      }
+      return branch.ref();
+    }
+
+    @Override
+    public String getReplacementString() {
+      return branch.getShortName();
+    }
+  }
+}

gerrit-gwtui/src/main/java/com/google/gerrit/client/ui/UIConstants.java

@@ -25,4 +25,8 @@ public interface UIConstants extends Constants {
   String projectItemHelp();
   String projectStateAbbrev();
   String projectStateHelp();
+
+  String dialogCreateChangeTitle();
+  String dialogCreateChangeHeading();
+  String newChangeBranchSuggestion();
 }

gerrit-gwtui/src/main/java/com/google/gerrit/client/ui/UIConstants.properties

@@ -6,3 +6,7 @@ projectDescription = Project Description
 projectItemHelp = project
 projectStateAbbrev = S
 projectStateHelp = State
+
+dialogCreateChangeTitle = Create Change
+dialogCreateChangeHeading = Description
+newChangeBranchSuggestion = Select branch for new change