com.google.gerrit.client.changes.CommentedChangeActionDialog.java Source code

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Here is the source code for com.google.gerrit.client.changes.CommentedChangeActionDialog.java

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// Copyright (C) 2009 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.changes;

import com.google.gerrit.client.rpc.GerritCallback;
import com.google.gerrit.client.ui.SmallHeading;
import com.google.gerrit.common.data.ChangeDetail;
import com.google.gerrit.reviewdb.PatchSet;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.logical.shared.CloseEvent;
import com.google.gwt.event.logical.shared.CloseHandler;
import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.PopupPanel;
import com.google.gwtexpui.globalkey.client.GlobalKey;
import com.google.gwtexpui.globalkey.client.NpTextArea;
import com.google.gwtexpui.user.client.AutoCenterDialogBox;

public abstract class CommentedChangeActionDialog extends AutoCenterDialogBox implements CloseHandler<PopupPanel> {
    private final FlowPanel panel;
    private final NpTextArea message;
    private final Button sendButton;
    private final Button cancelButton;
    private final PatchSet.Id psid;
    private final AsyncCallback<ChangeDetail> callback;

    private boolean buttonClicked = false;

    public CommentedChangeActionDialog(final PatchSet.Id psi, final AsyncCallback<ChangeDetail> callback,
            final String dialogTitle, final String dialogHeading, final String buttonSend,
            final String buttonCancel, final String dialogStyle, final String messageStyle) {
        this(psi, callback, dialogTitle, dialogHeading, buttonSend, buttonCancel, dialogStyle, messageStyle, null);
    }

    public CommentedChangeActionDialog(final PatchSet.Id psi, final AsyncCallback<ChangeDetail> callback,
            final String dialogTitle, final String dialogHeading, final String buttonSend,
            final String buttonCancel, final String dialogStyle, final String messageStyle,
            final String defaultMessage) {
        super(/* auto hide */false, /* modal */true);
        setGlassEnabled(true);

        psid = psi;
        this.callback = callback;
        addStyleName(dialogStyle);
        setText(dialogTitle);

        panel = new FlowPanel();
        add(panel);

        panel.add(new SmallHeading(dialogHeading));

        final FlowPanel mwrap = new FlowPanel();
        mwrap.setStyleName(messageStyle);
        panel.add(mwrap);

        message = new NpTextArea();
        message.setCharacterWidth(60);
        message.setVisibleLines(10);
        message.setText(defaultMessage);
        DOM.setElementPropertyBoolean(message.getElement(), "spellcheck", true);
        mwrap.add(message);

        final FlowPanel buttonPanel = new FlowPanel();
        panel.add(buttonPanel);
        sendButton = new Button(buttonSend);
        sendButton.addClickHandler(new ClickHandler() {
            @Override
            public void onClick(final ClickEvent event) {
                sendButton.setEnabled(false);
                cancelButton.setEnabled(false);
                onSend();
            }
        });
        buttonPanel.add(sendButton);

        cancelButton = new Button(buttonCancel);
        DOM.setStyleAttribute(cancelButton.getElement(), "marginLeft", "300px");
        cancelButton.addClickHandler(new ClickHandler() {
            @Override
            public void onClick(final ClickEvent event) {
                buttonClicked = true;
                if (callback != null) {
                    callback.onFailure(null);
                }
                hide();
            }
        });
        buttonPanel.add(cancelButton);

        addCloseHandler(this);
    }

    @Override
    public void center() {
        super.center();
        GlobalKey.dialog(this);
        message.setFocus(true);
    }

    @Override
    public void onClose(CloseEvent<PopupPanel> event) {
        if (!buttonClicked) {
            // the dialog was closed without one of the buttons being pressed
            // e.g. the user pressed ESC to close the dialog
            if (callback != null) {
                callback.onFailure(null);
            }
        }
    }

    public abstract void onSend();

    public PatchSet.Id getPatchSetId() {
        return psid;
    }

    public String getMessageText() {
        return message.getText().trim();
    }

    public GerritCallback<ChangeDetail> createCallback() {
        return new GerritCallback<ChangeDetail>() {
            @Override
            public void onSuccess(ChangeDetail result) {
                buttonClicked = true;
                if (callback != null) {
                    callback.onSuccess(result);
                }
                hide();
            }

            @Override
            public void onFailure(Throwable caught) {
                sendButton.setEnabled(true);
                cancelButton.setEnabled(true);
                super.onFailure(caught);
            }
        };
    }
}