private void buildLessonTree(Response response) {
TreeItem item = null;
JsArray<LessonCategoryJS> lessonJSArray = JsonUtils.safeEval(response.getText());
for (int i = 0; i < lessonJSArray.length(); i++) {
LessonCategoryJS lessonCategoryJS = lessonJSArray.get(i);
TreeItem category = new TreeItem();
category.setText(lessonCategoryJS.getName());
JsArray<LessonJS> lessons = lessonCategoryJS.getChildren();
for (int j = 0; j < lessons.length(); j++) {
LessonJS lesson = lessons.get(j);
TreeItem lessonItem = new TreeItem();
Storage sessionStorage = Storage.getSessionStorageIfSupported();
String lastUrl = sessionStorage.getItem("lastUrl");
lessonItem.setText(lesson.getText());
category.addItem(lessonItem);
lessonsTreeMap.put(lessonItem.getText(), lesson);
if (lesson.getTechnology().equals(LessonTechnology.GWT.toString())) {
addLessonToMap(lesson);
}
if (lastUrl != null && lastUrl.equals(lesson.getUrl())) {
item = lessonItem;
lessonPanel.setSelectedLesson(lesson);
category.setState(true);
}
}
lessonTree.addItem(category);
}
lessonTree.setSelectedItem(item);
}
public void updateTreeItems(TreeItem treeItem, List<FileWrapper> list) {
if (treeItem == null) treeItem = trtmRoot;
int index = 0, numberOfChildren = treeItem.getChildCount();
int newIndex = 0, numberOfNewChildren = list.size();
while (newIndex < numberOfNewChildren && index < numberOfChildren) {
FileWrapper fileWrapper = list.get(newIndex);
if (fileWrapper.getKind() != FileType.DIR) {
break;
}
TreeItem child = treeItem.getChild(index);
int diff = child.getText().compareTo(fileWrapper.getName());
if (diff < 0) {
treeItem.removeItem(child);
} else if (diff > 0) {
TreeItem trtmNewItem = new TreeItem();
treeItem.insertItem(index, trtmNewItem);
trtmNewItem.setText(fileWrapper.getName());
index++;
numberOfChildren++;
newIndex++;
presenter.getFiles(trtmNewItem, getPath(trtmNewItem));
} else {
index++;
newIndex++;
presenter.getFiles(child, getPath(child));
}
}
while (newIndex < numberOfNewChildren) {
FileWrapper fileWrapper = list.get(newIndex++);
if (fileWrapper.getKind() != FileType.DIR) {
break;
}
TreeItem trtmNewItem = new TreeItem();
treeItem.addItem(trtmNewItem);
trtmNewItem.setText(fileWrapper.getName());
presenter.getFiles(trtmNewItem, getPath(trtmNewItem));
}
while (index < numberOfChildren) {
treeItem.removeItem(treeItem.getChild(index));
numberOfChildren--;
}
}
/** Initialize the menu */
private void intiMenu() {
removeAll();
// Item 1 sub-tree
TreeItem item1 = new TreeItem();
item1.setText(SafeHtmlUtils.htmlEscape(CATEGORY_MENU));
item1.setUserObject(CATEGORY_MENU);
addItem(item1);
}
private void loadItem(VariableSerializable[] vars) {
for (int j = 0; j < vars.length; j++) {
// Do not include variables with subset_variable="true" used to denote "selector"
// variables in in-situ data sets like SOCAT
// TODO and for now no variables with character string values
// if ( Util.keep(vars[j].getDSID(), vars[j].getName()) && Util.keep(vars[j].getDSID(),
// vars[j].getAttributes()) ) {
TreeItem item = new TreeItem();
item.setText(vars[j].getName());
item.setUserObject(vars[j]);
currentlySelected.addItem(item);
// }
}
}
private void addTreeItem(JSONObject jsonObject, int index) {
Node node =
new Node(
jsonObject.get("id").isString().stringValue(),
jsonObject.get("leaf").isBoolean().booleanValue(),
jsonObject.get("text").isString().stringValue());
if (node.getText() != null) {
TreeItem item = new TreeItem();
item.setText(node.getText());
item.setUserObject(node);
if (!node.isLeaf()) item.addItem(""); // Temporarily add an item so we can expand this node
treeItem.addItem(item);
}
}
public void onSuccess(Object result) {
CategorySerializable[] cats = (CategorySerializable[]) result;
if (cats != null && cats.length > 0) {
if (currentlySelected == null) {
for (int i = 0; i < cats.length; i++) {
CategorySerializable cat = cats[i];
String children = cat.getAttributes().get("children");
boolean empty = false;
if (children != null && children.equals("none")) empty = true;
if (applyFilters(cat) && !empty) {
TreeItem item = new TreeItem();
item.addItem(
new SafeHtmlBuilder().appendEscaped(DatasetWidget.LOADING).toSafeHtml());
InnerItem inner = new InnerItem(cat);
item.setWidget(inner);
item.setUserObject(cat);
addItem(item);
}
}
} else {
for (int i = 0; i < cats.length; i++) {
CategorySerializable cat = cats[i];
if (cat.isCategoryChildren()) {
String name = cat.getName();
TreeItem item;
if (i == 0) {
item = currentlySelected.getChild(0);
} else {
item = new TreeItem();
}
item.addItem(
new SafeHtmlBuilder().appendEscaped(DatasetWidget.LOADING).toSafeHtml());
InnerItem inner = new InnerItem(cat);
item.setWidget(inner);
item.setUserObject(cat);
if (i > 0) {
currentlySelected.addItem(item);
}
} else if (cat.isVariableChildren()) {
// Must have variable children...
TreeItem item = currentlySelected.getChild(0);
if (cat.hasMultipleDatasets()) {
DatasetSerializable[] dses = cat.getDatasetSerializableArray();
DatasetSerializable ds = dses[0];
VariableSerializable[] vars = ds.getVariablesSerializable();
currentlySelected.removeItems();
for (int j = 0; j < dses.length; j++) {
ds = dses[j];
vars = ds.getVariablesSerializable();
loadItem(vars);
}
} else {
DatasetSerializable ds = cat.getDatasetSerializable();
VariableSerializable[] vars = ds.getVariablesSerializable();
currentlySelected.removeItems();
loadItem(vars);
}
}
}
}
} else {
// A category was selected, but it came back empty...
if (currentlySelected != null) {
TreeItem item = currentlySelected.getChild(0);
item.setText("No data sets found.");
}
}
if (saveSelection != null) {
currentlySelected = saveSelection;
saveSelection = null;
}
}
public ExplorerViewImpl() {
checkBoxList = new ArrayList<CheckBox>();
selectedFileSet = new TreeSet<String>();
clickHandlerStopPropagation =
new ClickHandler() {
public void onClick(ClickEvent event) {
event.stopPropagation();
}
};
DockPanel dockPanel = new DockPanel();
dockPanel.setWidth("100%");
viewPanel = new SimplePanel(dockPanel);
initWidget(viewPanel);
MenuBar menuBar = new MenuBar(false);
dockPanel.add(menuBar, DockPanel.NORTH);
menuBar.setHeight("30px");
MenuBar mnbrFile = new MenuBar(true);
MenuItem mntmFile = new MenuItem("File", false, mnbrFile);
menuBar.addItem(mntmFile);
mntmMakeDirectory =
new MenuItem(
"Make Directory",
false,
new Command() {
public void execute() {
new FileDialogBox(presenter, Operation.MAKE_DIRECTORY).center();
}
});
mnbrFile.addItem(mntmMakeDirectory);
mntmUploadFile =
new MenuItem(
"Upload",
false,
new Command() {
public void execute() {
new FileDialogBox(presenter, Operation.UPLOAD).center();
}
});
mnbrFile.addItem(mntmUploadFile);
mntmDownloadFile =
new MenuItem(
"Download",
false,
new Command() {
public void execute() {
presenter.downloadFiles(selectedFileSet);
}
});
mnbrFile.addItem(mntmDownloadFile);
mntmDownloadFile.setEnabled(false);
mntmDeleteFile =
new MenuItem(
"Delete",
false,
new Command() {
public void execute() {}
});
mnbrFile.addItem(mntmDeleteFile);
mntmDeleteFile.setEnabled(false);
mntmRenameFile =
new MenuItem(
"Rename",
false,
new Command() {
public void execute() {}
});
mnbrFile.addItem(mntmRenameFile);
mntmRenameFile.setEnabled(false);
MenuItemSeparator misFile = new MenuItemSeparator();
mnbrFile.addSeparator(misFile);
MenuItem mntmCloseVolume =
new MenuItem(
"Close volume",
false,
new Command() {
public void execute() {
presenter.closeVolume();
}
});
mnbrFile.addItem(mntmCloseVolume);
MenuBar mnbrHelp = new MenuBar(true);
MenuItem mntmHelp = new MenuItem("Help", false, mnbrHelp);
menuBar.addItem(mntmHelp);
MenuItem mntmAbout =
new MenuItem(
"About",
false,
new Command() {
public void execute() {
Window.alert("");
}
});
mnbrHelp.addItem(mntmAbout);
flowPanel = new FlowPanel();
explorerScrollPanel = new ScrollPanel(flowPanel);
dockPanel.add(explorerScrollPanel, DockPanel.CENTER);
explorerScrollPanel.sinkEvents(Event.ONCLICK);
explorerScrollPanel.addHandler(
new ClickHandler() {
public void onClick(ClickEvent event) {
setAllCheckBoxFalse();
}
},
ClickEvent.getType());
explorerScrollPanel.sinkEvents(Event.ONCONTEXTMENU);
explorerScrollPanel.addHandler(
new ContextMenuHandler() {
public void onContextMenu(ContextMenuEvent event) {
event.preventDefault();
event.stopPropagation();
FileContextMenu fileContextMenu =
new FileContextMenu(presenter, ContextMenuType.BACKGROUND);
fileContextMenu.setPopupPosition(
event.getNativeEvent().getClientX(), event.getNativeEvent().getClientY());
fileContextMenu.show();
setAllCheckBoxFalse();
}
},
ContextMenuEvent.getType());
Tree tree = new Tree();
treeScrollPanel = new ScrollPanel(tree);
dockPanel.add(treeScrollPanel, DockPanel.WEST);
treeScrollPanel.setWidth("120px");
resizeScrollPanel();
Window.addResizeHandler(
new ResizeHandler() {
public void onResize(ResizeEvent event) {
resizeScrollPanel();
}
});
tree.setAnimationEnabled(true);
// tree.addOpenHandler(new OpenHandler<TreeItem>() {
// public void onOpen(OpenEvent<TreeItem> event) {
// TreeItem trtmTarget = event.getTarget();
// String path = getPath(trtmTarget);
// for (int i = 0; i < trtmTarget.getChildCount(); i++) {
// TreeItem trtmChild = trtmTarget.getChild(i);
// String childPath = path + trtmChild.getText();
// presenter.getFiles(trtmChild, childPath);
// }
// }
// });
tree.addSelectionHandler(
new SelectionHandler<TreeItem>() {
public void onSelection(SelectionEvent<TreeItem> event) {
TreeItem selectedItem = event.getSelectedItem();
String path = getPath(selectedItem);
selectedItem.setState(true, true);
presenter.changeDirectory(path);
}
});
trtmRoot = new TreeItem();
trtmSelectedItem = trtmRoot;
tree.addItem(trtmRoot);
trtmRoot.setText("/");
}