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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.Util;
import com.google.gerrit.client.ui.FancyFlexTable;
import com.google.gerrit.reviewdb.Patch;
import com.google.gerrit.reviewdb.PatchSet;
import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.Event;
import com.google.gwt.user.client.ui.HasHorizontalAlignment;
import com.google.gwt.user.client.ui.RadioButton;
import com.google.gwtexpui.safehtml.client.SafeHtmlBuilder;
import java.util.ArrayList;
import java.util.List;
/**
* A table used to specify which two patch sets should be diff'ed.
*/
class HistoryTable extends FancyFlexTable<Patch> {
private final AbstractPatchScreen screen;
final List<HistoryRadio> all = new ArrayList<HistoryRadio>();
HistoryTable(final AbstractPatchScreen parent) {
setStyleName(Gerrit.RESOURCES.css().patchHistoryTable());
screen = parent;
table.setWidth("auto");
table.addStyleName(Gerrit.RESOURCES.css().changeTable());
}
void onClick(final HistoryRadio b) {
switch (b.file) {
case 0:
screen.setSideA(b.patchSetId);
break;
case 1:
screen.setSideB(b.patchSetId);
break;
default:
return;
}
enableAll(false);
screen.refresh(false);
}
void enableAll(final boolean on) {
for (final HistoryRadio a : all) {
a.setEnabled(on);
}
}
void display(final List<Patch> result) {
all.clear();
final SafeHtmlBuilder nc = new SafeHtmlBuilder();
appendHeader(nc);
appendRow(nc, null);
for (final Patch k : result) {
appendRow(nc, k);
}
resetHtml(nc);
int row = 1;
{
final Patch k = new Patch(new Patch.Key(null, ""));
setRowItem(row, k);
installRadio(row, k, 0, screen.getSideA());
row++;
}
for (final Patch k : result) {
setRowItem(row, k);
installRadio(row, k, 0, screen.getSideA());
installRadio(row, k, 1, screen.getSideB());
row++;
}
}
private void installRadio(final int row, final Patch k, final int file,
final PatchSet.Id cur) {
final PatchSet.Id psid = k.getKey().getParentKey();
final HistoryRadio b = new HistoryRadio(psid, file);
b.setValue(eq(cur, psid));
final int cell = radioCell(file);
table.setWidget(row, cell, b);
table.getCellFormatter().setHorizontalAlignment(row, cell,
HasHorizontalAlignment.ALIGN_CENTER);
all.add(b);
}
private boolean eq(final PatchSet.Id cur, final PatchSet.Id psid) {
if (cur == null && psid == null) {
return true;
}
return psid != null && psid.equals(cur);
}
private int radioCell(final int file) {
return 2 + file;
}
private void appendHeader(final SafeHtmlBuilder m) {
m.openTr();
m.openTd();
m.addStyleName(Gerrit.RESOURCES.css().iconHeader());
m.addStyleName(Gerrit.RESOURCES.css().leftMostCell());
m.nbsp();
m.closeTd();
m.openTd();
m.setStyleName(Gerrit.RESOURCES.css().dataHeader());
m.nbsp();
m.closeTd();
m.openTd();
m.setStyleName(Gerrit.RESOURCES.css().dataHeader());
m.append(PatchUtil.C.patchHeaderOld());
m.closeTd();
m.openTd();
m.setStyleName(Gerrit.RESOURCES.css().dataHeader());
m.append(PatchUtil.C.patchHeaderNew());
m.closeTd();
m.openTd();
m.setStyleName(Gerrit.RESOURCES.css().dataHeader());
m.append(Util.C.patchTableColumnComments());
m.closeTd();
m.closeTr();
}
private void appendRow(final SafeHtmlBuilder m, final Patch k) {
m.openTr();
m.openTd();
m.addStyleName(Gerrit.RESOURCES.css().iconCell());
m.addStyleName(Gerrit.RESOURCES.css().leftMostCell());
m.nbsp();
m.closeTd();
m.openTd();
m.setStyleName(Gerrit.RESOURCES.css().dataCell());
m.setAttribute("align", "right");
if (k != null) {
final PatchSet.Id psId = k.getKey().getParentKey();
m.append(Util.M.patchSetHeader(psId.get()));
} else {
m.append("Base");
}
m.closeTd();
m.openTd();
m.setStyleName(Gerrit.RESOURCES.css().dataCell());
m.nbsp();
m.closeTd();
m.openTd();
m.setStyleName(Gerrit.RESOURCES.css().dataCell());
m.nbsp();
m.closeTd();
m.openTd();
m.setStyleName(Gerrit.RESOURCES.css().dataCell());
if (k != null && k.getCommentCount() > 0) {
m.append(Util.M.patchTableComments(k.getCommentCount()));
} else {
m.nbsp();
}
m.closeTd();
m.closeTr();
}
private class HistoryRadio extends RadioButton {
final PatchSet.Id patchSetId;
final int file;
HistoryRadio(final PatchSet.Id ps, final int f) {
super(String.valueOf(f));
sinkEvents(Event.ONCLICK);
patchSetId = ps;
file = f;
}
@Override
public void onBrowserEvent(final Event event) {
switch (DOM.eventGetType(event)) {
case Event.ONCLICK:
onClick(this);
break;
default:
super.onBrowserEvent(event);
}
}
}
}
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