/*
* Copyright 2000-2016 Vaadin Ltd.
*
* 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.vaadin.client.debug.internal;
import java.util.HashMap;
import java.util.Map;
import com.google.gwt.dom.client.Element;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.dom.client.KeyCodes;
import com.google.gwt.event.dom.client.MouseOutEvent;
import com.google.gwt.event.dom.client.MouseOutHandler;
import com.google.gwt.event.dom.client.MouseOverEvent;
import com.google.gwt.event.dom.client.MouseOverHandler;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.user.client.Event;
import com.google.gwt.user.client.Event.NativePreviewEvent;
import com.google.gwt.user.client.Event.NativePreviewHandler;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.RootPanel;
import com.google.gwt.user.client.ui.Widget;
import com.vaadin.client.ApplicationConfiguration;
import com.vaadin.client.ApplicationConnection;
import com.vaadin.client.ComponentConnector;
import com.vaadin.client.ServerConnector;
import com.vaadin.client.Util;
import com.vaadin.client.ValueMap;
import com.vaadin.client.WidgetUtil;
/**
* Provides functionality for picking selectors for Vaadin TestBench.
*
* @since 7.1.x
* @author Vaadin Ltd
*/
public class TestBenchSection implements Section {
/**
* Selector widget showing a selector in a program-usable form.
*/
private static class SelectorWidget extends HTML
implements MouseOverHandler, MouseOutHandler {
private final SelectorPath path;
public SelectorWidget(final SelectorPath path) {
this.path = path;
String html = "<div class=\"" + VDebugWindow.STYLENAME
+ "-selector\"><span class=\"tb-selector\">"
+ WidgetUtil.escapeHTML(path.getElementQuery())
+ "</span></div>";
setHTML(html);
addMouseOverHandler(this);
addMouseOutHandler(this);
}
@Override
public void onMouseOver(MouseOverEvent event) {
Highlight.hideAll();
Element element = path.getElement();
if (null != element) {
Highlight.show(element);
}
}
@Override
public void onMouseOut(MouseOutEvent event) {
Highlight.hideAll();
}
}
private final DebugButton tabButton = new DebugButton(Icon.TESTBENCH,
"Pick Vaadin TestBench selectors");
private final FlowPanel content = new FlowPanel();
private final FlowPanel selectorPanel = new FlowPanel();
// map from full path to SelectorWidget to enable reuse of old selectors
private Map<SelectorPath, SelectorWidget> selectorWidgets = new HashMap<>();
private final FlowPanel controls = new FlowPanel();
private final Button find = new DebugButton(Icon.HIGHLIGHT,
"Pick an element and generate a query for it");
private final Button clear = new DebugButton(Icon.CLEAR,
"Clear current elements");
private HandlerRegistration highlightModeRegistration = null;
public TestBenchSection() {
controls.add(find);
find.setStylePrimaryName(VDebugWindow.STYLENAME_BUTTON);
find.addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
toggleFind();
}
});
controls.add(clear);
clear.setStylePrimaryName(VDebugWindow.STYLENAME_BUTTON);
clear.addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
clearResults();
}
});
content.setStylePrimaryName(VDebugWindow.STYLENAME + "-testbench");
content.add(selectorPanel);
}
@Override
public DebugButton getTabButton() {
return tabButton;
}
@Override
public Widget getControls() {
return controls;
}
@Override
public Widget getContent() {
return content;
}
@Override
public void show() {
}
@Override
public void hide() {
stopFind();
}
@Override
public void meta(ApplicationConnection ac, ValueMap meta) {
// NOP
}
@Override
public void uidl(ApplicationConnection ac, ValueMap uidl) {
// NOP
}
private boolean isFindMode() {
return (highlightModeRegistration != null);
}
private void toggleFind() {
if (isFindMode()) {
stopFind();
} else {
startFind();
}
}
private void startFind() {
Highlight.hideAll();
if (!isFindMode()) {
highlightModeRegistration = Event
.addNativePreviewHandler(highlightModeHandler);
find.addStyleDependentName(VDebugWindow.STYLENAME_ACTIVE);
}
}
private void stopFind() {
if (isFindMode()) {
highlightModeRegistration.removeHandler();
highlightModeRegistration = null;
find.removeStyleDependentName(VDebugWindow.STYLENAME_ACTIVE);
}
Highlight.hideAll();
}
private void pickSelector(ServerConnector connector, Element element) {
SelectorPath p = new SelectorPath(connector,
Util.findPaintable(connector.getConnection(), element)
.getWidget().getElement());
SelectorWidget w = new SelectorWidget(p);
content.add(w);
}
private final NativePreviewHandler highlightModeHandler = new NativePreviewHandler() {
@Override
public void onPreviewNativeEvent(NativePreviewEvent event) {
if (event.getTypeInt() == Event.ONKEYDOWN && event.getNativeEvent()
.getKeyCode() == KeyCodes.KEY_ESCAPE) {
stopFind();
Highlight.hideAll();
return;
}
if (event.getTypeInt() == Event.ONMOUSEMOVE
|| event.getTypeInt() == Event.ONCLICK) {
Element eventTarget = WidgetUtil.getElementFromPoint(
event.getNativeEvent().getClientX(),
event.getNativeEvent().getClientY());
if (VDebugWindow.get().getElement().isOrHasChild(eventTarget)) {
if (isFindMode() && event.getTypeInt() == Event.ONCLICK) {
stopFind();
event.cancel();
}
return;
}
// make sure that not finding the highlight element only
Highlight.hideAll();
eventTarget = WidgetUtil.getElementFromPoint(
event.getNativeEvent().getClientX(),
event.getNativeEvent().getClientY());
ComponentConnector connector = findConnector(eventTarget);
if (event.getTypeInt() == Event.ONMOUSEMOVE) {
if (connector != null) {
Highlight.showOnly(connector);
event.cancel();
event.consume();
event.getNativeEvent().stopPropagation();
return;
}
} else if (event.getTypeInt() == Event.ONCLICK) {
event.cancel();
event.consume();
event.getNativeEvent().stopPropagation();
if (connector != null) {
Highlight.showOnly(connector);
pickSelector(connector, eventTarget);
return;
}
}
}
event.cancel();
}
};
private ComponentConnector findConnector(Element element) {
for (ApplicationConnection a : ApplicationConfiguration
.getRunningApplications()) {
ComponentConnector connector = Util.getConnectorForElement(a,
a.getUIConnector().getWidget(), element);
if (connector == null) {
connector = Util.getConnectorForElement(a, RootPanel.get(),
element);
}
if (connector != null) {
return connector;
}
}
return null;
}
private void clearResults() {
content.clear();
}
}