// Copyright (c) 2009 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
package org.chromium.debug.ui;
import static org.chromium.sdk.util.BasicUtil.getSafe;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.chromium.debug.core.model.TabSelector;
import org.chromium.debug.core.model.WipTabSelector;
import org.chromium.sdk.Browser.TabConnector;
import org.chromium.sdk.Browser.TabFetcher;
import org.chromium.sdk.wip.WipBackend;
import org.chromium.sdk.wip.WipBrowser;
import org.chromium.sdk.wip.WipBrowser.WipTabConnector;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.PlatformUI;
/**
* A TabSelector which brings up a dialog allowing users to select which target
* browser tab to debug.
*/
public class DialogBasedTabSelector {
public static TabSelector INSTANCE = new Impl();
public static WipTabSelector WIP_INSTANCE = new Wip();
private static abstract class Base<CONNECTOR, SOURCE> {
public CONNECTOR selectTab(SOURCE tabFetcher) throws IOException {
List<? extends CONNECTOR> allTabs = getTabs(tabFetcher);
List<CONNECTOR> filteredTabs = new ArrayList<CONNECTOR>(allTabs.size());
for (CONNECTOR tab : allTabs) {
if (!isAttached(tab)) {
filteredTabs.add(tab);
}
}
if (autoSelectSingleTab()) {
if (allTabs.size() == 1 && filteredTabs.size() == 1) {
// if all crystal clear -- choose by default
// disable auto-select if there are some already attached tabs:
// user has already seen this dialog and might have got used to it
// he might not understand why it didn't show up this time
return allTabs.get(0);
}
}
final Map<Integer, CONNECTOR> map = new HashMap<Integer, CONNECTOR>();
final List<String> urls = new ArrayList<String>(filteredTabs.size());
for (int i = 0; i < filteredTabs.size(); ++i) {
CONNECTOR connector = filteredTabs.get(i);
map.put(i, connector);
urls.add(getUrl(connector));
}
final List<CONNECTOR> result = new ArrayList<CONNECTOR>(1);
Display.getDefault().syncExec(new Runnable() {
public void run() {
final Shell shell = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell();
final ChromiumTabSelectionDialog dialog = new ChromiumTabSelectionDialog(shell, urls);
dialog.setBlockOnOpen(true);
int dialogResult = dialog.open();
if (dialogResult == ChromiumTabSelectionDialog.OK) {
result.add(getSafe(map, dialog.getSelectedLine()));
}
// otherwise (result[0] == null) which means "Do not attach"
}
});
if (result.isEmpty()) {
return null;
} else {
return result.get(0);
}
}
protected abstract List<? extends CONNECTOR> getTabs(SOURCE tabFetcher) throws IOException;
protected abstract boolean isAttached(CONNECTOR connector);
protected abstract String getUrl(CONNECTOR connector);
private boolean autoSelectSingleTab() {
return true;
}
}
private static class Impl extends Base<TabConnector, TabFetcher> implements TabSelector {
@Override protected List<? extends TabConnector> getTabs(TabFetcher tabFetcher)
throws IOException {
return tabFetcher.getTabs();
}
@Override protected boolean isAttached(TabConnector connector) {
return connector.isAlreadyAttached();
}
@Override protected String getUrl(TabConnector connector) {
return connector.getUrl();
}
}
private static class Wip extends Base<WipTabConnector, WipTabSelector.BrowserAndBackend>
implements WipTabSelector {
@Override
protected List<? extends WipTabConnector> getTabs(
WipTabSelector.BrowserAndBackend browserAndBackend) throws IOException {
WipBrowser browser = browserAndBackend.getBrowser();
WipBackend backend = browserAndBackend.getBackend();
return browser.getTabs(backend);
}
@Override
protected boolean isAttached(WipTabConnector connector) {
return connector.isAlreadyAttached();
}
@Override
protected String getUrl(WipTabConnector connector) {
return connector.getUrl();
}
}
}