com.google.gerrit.client.patches.PatchBrowserPopup.java Source code

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Here is the source code for com.google.gerrit.client.patches.PatchBrowserPopup.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.patches;

import com.google.gerrit.client.Gerrit;
import com.google.gerrit.client.changes.PatchTable;
import com.google.gerrit.client.changes.Util;
import com.google.gerrit.reviewdb.client.Patch;
import com.google.gwt.event.logical.shared.ResizeEvent;
import com.google.gwt.event.logical.shared.ResizeHandler;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.user.client.Command;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.PopupPanel.PositionCallback;
import com.google.gwt.user.client.ui.ScrollPanel;
import com.google.gwtexpui.globalkey.client.GlobalKey;
import com.google.gwtexpui.globalkey.client.HidePopupPanelCommand;
import com.google.gwtexpui.user.client.PluginSafeDialogBox;

class PatchBrowserPopup extends PluginSafeDialogBox implements PositionCallback, ResizeHandler {
    private final Patch.Key callerKey;
    private final PatchTable fileList;
    private final ScrollPanel sp;
    private HandlerRegistration regWindowResize;

    PatchBrowserPopup(final Patch.Key pk, final PatchTable fl) {
        super(true/* autohide */, false/* modal */);

        callerKey = pk;
        fileList = fl;
        sp = new ScrollPanel(fileList);

        final FlowPanel body = new FlowPanel();
        body.setStyleName(Gerrit.RESOURCES.css().patchBrowserPopupBody());
        body.add(sp);

        setText(Util.M.patchSetHeader(callerKey.getParentKey().get()));
        setWidget(body);
        addStyleName(Gerrit.RESOURCES.css().patchBrowserPopup());
    }

    @Override
    public void setPosition(final int myWidth, int myHeight) {
        final int dLeft = (Window.getClientWidth() - myWidth) >> 1;
        final int cHeight = Window.getClientHeight();
        final int cHeight2 = 2 * cHeight / 3;
        final int sLeft = Window.getScrollLeft();
        final int sTop = Window.getScrollTop();

        if (myHeight > cHeight2) {
            sp.setHeight((cHeight2 - 50) + "px");
            myHeight = getOffsetHeight();
        }
        setPopupPosition(sLeft + dLeft, (sTop + cHeight) - (myHeight + 10));
    }

    @Override
    public void onResize(final ResizeEvent event) {
        sp.setWidth((Window.getClientWidth() - 60) + "px");
        setPosition(getOffsetWidth(), getOffsetHeight());
    }

    @Override
    public void hide() {
        if (regWindowResize != null) {
            regWindowResize.removeHandler();
            regWindowResize = null;
        }
        super.hide();
    }

    @Override
    public void show() {
        super.show();
        if (regWindowResize == null) {
            regWindowResize = Window.addResizeHandler(this);
        }

        GlobalKey.dialog(this);
        GlobalKey.addApplication(this, new HidePopupPanelCommand(0, 'f', this));

        if (!fileList.isLoaded()) {
            fileList.onTableLoaded(new Command() {
                @Override
                public void execute() {
                    sp.setHeight("");
                    setPosition(getOffsetWidth(), getOffsetHeight());
                    fileList.setRegisterKeys(true);
                    fileList.movePointerTo(callerKey);
                }
            });
        }
    }

    public void open() {
        if (!fileList.isLoaded()) {
            sp.setHeight("22px");
        }
        sp.setWidth((Window.getClientWidth() - 60) + "px");
        setPopupPositionAndShow(this);
        if (fileList.isLoaded()) {
            fileList.setRegisterKeys(true);
            fileList.movePointerTo(callerKey);
        }
    }
}