com.googlesource.gerrit.plugins.xdocs.client.XDocSideBySideDiffScreen.java Source code

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Here is the source code for com.googlesource.gerrit.plugins.xdocs.client.XDocSideBySideDiffScreen.java

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// 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.googlesource.gerrit.plugins.xdocs.client;

import com.google.gerrit.plugin.client.screen.Screen;
import com.google.gwt.http.client.URL;
import com.google.gwt.user.client.ui.FlexTable;
import com.google.gwt.user.client.ui.Frame;

import com.googlesource.gerrit.plugins.xdocs.client.PatchSetSelectBox.DiffView;
import com.googlesource.gerrit.plugins.xdocs.client.PatchSetSelectBox.DisplaySide;

public class XDocSideBySideDiffScreen extends XDocDiffScreen {
    static class Factory implements Screen.EntryPoint {
        @Override
        public void onLoad(Screen screen) {
            String change = URL.decodeQueryString(screen.getToken(1));
            String patchSet = URL.decodeQueryString(screen.getToken(2));
            String path = screen.getToken(4);
            screen.show(new XDocSideBySideDiffScreen(change, patchSet, path));
            screen.setWindowTitle(FileInfo.getFileName(path));
        }
    }

    XDocSideBySideDiffScreen(String change, String patchSet, String path) {
        super(change, patchSet, path);
    }

    @Override
    protected void display(ChangeInfo change) {
        String frameIdA = "xdoc_sidebyside_diff_a_iframe";
        Frame frameA = getRevisionA() != null
                ? new Frame(XDocApi.getUrl(change.project(), getRevisionSideA(), getPath()))
                : new Frame();
        frameA.getElement().setId(frameIdA);
        XDocScreen.resize(frameA, frameIdA);

        String frameIdB = "xdoc_sidebyside_diff_b_iframe";
        Frame frameB = new Frame(XDocApi.getUrl(change.project(), getRevisionSideB(), getPath()));
        frameB.getElement().setId(frameIdB);
        XDocScreen.resize(frameB, frameIdB);

        FlexTable t = new FlexTable();
        t.setStyleName("xdocs-diff-table");
        int row = addRow(t);
        t.setWidget(row, 0,
                new PatchSetSelectBox(DiffView.SIDE_BY_SIDE, DisplaySide.A, change, base, patchSet, path));
        t.setWidget(row, 1,
                new PatchSetSelectBox(DiffView.SIDE_BY_SIDE, DisplaySide.B, change, base, patchSet, path));
        row = addRow(t);
        t.setWidget(row, 0, frameA);
        t.setWidget(row, 1, frameB);
        add(t);
    }

    private String getRevisionSideA() {
        return getRevisionA() + "<-" + getRevisionB();
    }

    private String getRevisionSideB() {
        return (getRevisionA() != null ? getRevisionA() : "") + "->" + getRevisionB();
    }

    @Override
    protected void init() {
        addIcon(createIcon(XDocsPlugin.RESOURCES.sideBySideDiff(), "side-by-side text diff",
                XDocsPlugin.getSideBySideDiffUrl(changeId, base, patchSet, path)));
        addIcon(createIcon(XDocsPlugin.RESOURCES.unifiedDiffPreview(), "unified preview diff",
                XDocsPlugin.getUnifiedPreviewDiffUrl(changeId, base, patchSet, path)));
    }
}