/** This method creates the HtmlTreeControl component used by the tag. */
public HtmlComponent createComponent() {
BaseTagHelper helper = getHelper();
// craete a tree controll and get the tree buffer
HtmlTreeControl tree = new HtmlTreeControl(getName(), getTheme(), helper.getController());
_treeBuffer = tree.getTreeBuffer();
tree.setSystemImages(getExpandimage(), getContractimage(), getNullimage());
tree.setTargetFrame(getTarget());
// treemode valid values are
// * LINK (clicking on a link in the tree will cause the browser to follow a link)
// * SUBMIT (clicking a link will cause the page to be submitted before following a link).
int treeMode = TreeBuffer.MODE_SUBMIT;
String treeModeStr = getTreemode();
if (treeModeStr != null) {
if (treeModeStr.equalsIgnoreCase("SUBMIT")) {
treeMode = TreeBuffer.MODE_SUBMIT;
} else if (treeModeStr.equalsIgnoreCase("LINK")) {
treeMode = TreeBuffer.MODE_LINK;
}
}
_treeBuffer.setMode(treeMode);
// showroot (optional) true or false value indicating whether or not to display the root of the
// tree.
_treeBuffer.setShowRoot(BaseTagHelper.stringToBoolean(getShowroot(), true));
// selectmode valid values are
// * NONE - (No items on the tree can be selected)
// * ONE (One item on the tree can be selected)
// * MANY (Many items on the tree can be selected)
int selectMode = TreeBuffer.SELECT_NONE;
String selectModeStr = getSelectmode();
if (selectModeStr != null) {
if (selectModeStr.equalsIgnoreCase("NONE")) {
selectMode = TreeBuffer.SELECT_NONE;
} else if (selectModeStr.equalsIgnoreCase("ONE")) {
selectMode = TreeBuffer.SELECT_ONE;
} else if (selectModeStr.equalsIgnoreCase("MANY")) {
selectMode = TreeBuffer.SELECT_MANY;
}
}
_treeBuffer.setSelectMode(selectMode);
return tree;
}
/** This method generates the html used by the tag. */
public void generateComponentHTML(JspWriter p) throws IOException {
try {
HtmlTreeControl tree = (HtmlTreeControl) getHelper().getController().getComponent(getName());
if (tree == null) return;
tree.generateHTML(new PrintWriter(p), -1);
} catch (IOException ioe) {
MessageLog.writeErrorMessage("generateComponentHTML", ioe, this);
throw ioe;
} catch (Exception e) {
MessageLog.writeErrorMessage("generateComponentHTML", e, this);
}
}