/**
* Starts searching procedure in backend.
*/
public void searchClicked() {
// Convert search string to UTF-8.
String searchString = searchEdit.getText().toString();
try {
searchString = URLEncoder.encode(searchString, "UTF-8");
} catch (UnsupportedEncodingException e) {}
// Display progress bar.
setProgressBarVisibility(true);
// No input? No need to search.
if("".equals(searchString)) {
listFragment.updateList(new ArrayList<Book>());
return;
}
// Create a new callback object, which refers to our searchDone().
Callback c = new Callback() {
public void handleMessage(Message msg) {
SearchFragment.this.searchDone(msg);
}
};
// Call backend search.
BackendFactory.getBackend().search(searchString, 0, c);
listFragment.setLastSearchString(searchString);
}
/**
* Is called from a callback object when backend searching is done.
* It is different from searchDone since we want to append the search
* results to the current list instead of replacing it.
* @param msg - Contains the books found by the search job and also
* an error message if there was an error.
*/
public void moreSearchDone(Message msg) {
// Hide progress bar.
setProgressBarVisibility(false);
// Did the job fail?
if (msg.error != null) {
// Log,
Log.e("searching", "Searching failed: "+msg.error);
// And toast user.
Toast.makeText(getSherlockActivity().getApplicationContext(), "Searching failed: "+msg.error, Toast.LENGTH_LONG).show();
return;
}
// Convert results to List<Book>.
@SuppressWarnings("unchecked")
ArrayList<Book> books = (ArrayList<Book>) msg.obj;
// Did we get no results?
if (books.size() == 0) {
Toast.makeText(getSherlockActivity().getApplicationContext(), "No results found.", Toast.LENGTH_LONG).show();
}
// Update list with titles (empty or not).
listFragment.appendList(books);
}