/*
* Copyright (C) 2010 The Android Open Source Project
*
* 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.mogoo.launcher2.search.ui;
import com.mogoo.launcher.R;
import com.mogoo.launcher2.Launcher;
import com.mogoo.launcher2.Mogoo_SuggestionService;
import com.mogoo.launcher2.search.SuggestionsAdapter;
import com.mogoo.launcher2.utils.Mogoo_ClearBase;
import com.mogoo.launcher2.utils.Mogoo_ComponentBus;
import android.app.Activity;
import android.app.Application;
import android.content.Context;
import android.content.res.Configuration;
import android.database.DataSetObserver;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.PorterDuff.Mode;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.ShapeDrawable;
import android.graphics.drawable.shapes.RectShape;
import android.graphics.drawable.shapes.Shape;
import android.os.Handler;
import android.text.Editable;
import android.text.TextWatcher;
import android.util.AttributeSet;
import android.util.Log;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnFocusChangeListener;
import android.view.inputmethod.EditorInfo;
import android.view.inputmethod.InputMethodManager;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.RelativeLayout;
/**
* 搜索屏布局类，包括广告展示、app搜索、web搜索
*/
public class SearchLayout extends RelativeLayout implements Mogoo_ClearBase {
private static final String TAG = "LANCH.SearchActivity";
private static final boolean DBG = true;
private static final long TYPING_SUGGESTIONS_UPDATE_DELAY_MILLIS = 100;
public static final int SEARCH_SCREEN_ALPHA = 150;
private InputMethodManager inputMethodManager;
private SuggestionsAdapter suggestionsAdapter;
private SuggestionsView suggestionsView;
private ImageButton searchClearButton;
private ImageButton searchButton;
// private MT_MotoneWebView webView;
private Mogoo_ComponentBus bus;
private Handler handler = new Handler();
private boolean queryWasEmpty = true;
private boolean updateSuggestions = true;
private boolean searchWeb = false;
private String query;
private Runnable updateSuggestionsTask = new Runnable() {
public void run() {
updateSuggestions(query, searchWeb ? Mogoo_SuggestionService.WEB_CURSOR_TYPE : Mogoo_SuggestionService.DEFAULT_CURSOR_TYPE);
}
};
private DataSetObserver suggestionsAdapterDataSet = new DataSetObserver(){
@Override
public void onChanged() {
updateSuggestions = true;
searchButton.setEnabled(true);
}
};
// private Corpus mCorpus;
// The string used for privateImeOptions to identify to the IME that it
// should not show
// a microphone button since one already exists in the search dialog.
// TODO: This should move to android-common or something.
private static final String IME_OPTION_NO_MICROPHONE = "nm";
public SearchLayout(Context context) {
this(context, null);
}
public SearchLayout(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public SearchLayout(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
initSearchLayout(context);
}
/**
* 装载所有search layout组件及相应事件 @ author: 黄悦
*/
public void setupView() {
Mogoo_ComponentBus bus = Mogoo_ComponentBus.getInstance();
EditText queryTextView = setupEditText();
setupSearchButton(queryTextView);
setupClearButton(queryTextView);
setupSuggestionView(bus);
// webView = (MT_MotoneWebView) findViewById(R.id.motone_web);
// webView.loadPage();
}
/**
* 清除SearchLayout的相关组件 @ author: 黄悦
*/
public void onClear() {
suggestionsView.onClear();
inputMethodManager = null;
suggestionsView = null;
searchClearButton = null;
suggestionsAdapter = null;
bus = null;
// webView.clearCache(true);
// webView.clearView();
// webView = null;
}
/**
* Handles non-text keys in the query text view.
*/
private class QueryTextViewKeyListener implements View.OnKeyListener {
public boolean onKey(View view, int keyCode, KeyEvent event) {
// Handle IME search action key
if (keyCode == KeyEvent.KEYCODE_ENTER && event.getAction() == KeyEvent.ACTION_UP) {
// onSearchClicked(Logger.SEARCH_METHOD_KEYBOARD);
}
return false;
}
}
/**
* 输入框获得焦点或失去焦点键盘的活动事件
* @ author: 黄悦
*
*/
private class QueryTextViewFocusListener implements OnFocusChangeListener {
public void onFocusChange(View v, boolean focused) {
if (DBG)
Log.d(TAG, "Query focus change, now: " + focused);
if (focused) {
showSoftInput(v);
} else {
hideSoftInput(v);
}
}
}
/*
* 切换广告/搜索结果显示
*/
private void updateMotoneWeb(boolean queryEmpty) {
if (queryEmpty) {
suggestionsView.setVisibility(View.INVISIBLE);
searchClearButton.setVisibility(View.INVISIBLE);
findViewById(R.id.suggestions_sohw).setVisibility(View.INVISIBLE);
// webView.setVisibility(View.VISIBLE);
} else {
findViewById(R.id.suggestions_sohw).setVisibility(View.VISIBLE);
suggestionsView.setVisibility(View.VISIBLE);
searchClearButton.setVisibility(View.VISIBLE);
// webView.setVisibility(View.INVISIBLE);
}
}
/*
* 装载关键字输入框
*/
private EditText setupEditText() {
final EditText queryTextView = (EditText) findViewById(R.id.search_src_text);
//denglixia add 2011.6.9
queryTextView.setImeOptions(EditorInfo.IME_ACTION_SEARCH);
queryTextView.setOnKeyListener(new QueryTextViewKeyListener());
queryTextView.setOnFocusChangeListener(new QueryTextViewFocusListener());
queryTextView.addTextChangedListener(new TextWatcher() {
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
public void afterTextChanged(Editable s) {
boolean empty = s.length() == 0;
if (empty != queryWasEmpty) {
queryWasEmpty = empty;
updateMotoneWeb(empty);
}
if (updateSuggestions) {
updateSuggestions = false;
query = s == null ? "" : s.toString();
searchWeb = false;
updateSuggestionsBuffered();
}
}
});
bus.addActivityComp(R.id.search_src_text, queryTextView, getContext());
return queryTextView;
}
/*
* 搜索频率缓冲
*/
private void updateSuggestionsBuffered() {
handler.removeCallbacks(updateSuggestionsTask);
handler.postDelayed(updateSuggestionsTask, TYPING_SUGGESTIONS_UPDATE_DELAY_MILLIS);
}
/*
* 对关键字进行搜索
*/
private void updateSuggestions(String q, int type) {
q = ltrim(q);
if(q == null || q.length() == 0){
suggestionsAdapter.clear();
updateSuggestions = true;
}else{
searchButton.setEnabled(false);
suggestionsAdapter.updateSearchResult(q, type);
}
}
/*
* 装载搜索结果列表
*/
private void setupSuggestionView(Mogoo_ComponentBus bus) {
suggestionsView = (SuggestionsView) findViewById(R.id.suggestions);
suggestionsAdapter = new SuggestionsAdapter(getContext());
suggestionsView.setAdapter(suggestionsAdapter);
suggestionsAdapter.registerObserverLayout(suggestionsAdapterDataSet);
bus.addActivityComp(R.id.suggestions, suggestionsView, (Activity) getContext());
}
/*
* 装载搜索结果清空
*/
private void setupClearButton(final EditText queryTextView) {
searchClearButton = (ImageButton) findViewById(R.id.search_clear_btn);
searchClearButton.setOnClickListener(new OnClickListener() {
public void onClick(View view) {
query = "";
queryTextView.setText(null);
showSoftInput(queryTextView);
suggestionsView.clearList();
}
});
}
/*
* 装载搜索案件点击事件
*/
private void setupSearchButton(final EditText queryTextView) {
searchButton = (ImageButton) findViewById(R.id.search_go_btn);
// searchButton.setOnClickListener(new OnClickListener() {
// public void onClick(View view) {
// CharSequence q = queryTextView.getText();
// query = ltrim(q == null ? "" : q.toString());
// searchWeb = true;
// updateSuggestionsBuffered();
// }
// });
}
/*
* 搜索关键字处理
*/
private static String ltrim(String text) {
int start = 0;
int length = text.length();
while (start < length && Character.isWhitespace(text.charAt(start))) {
start++;
}
return start > 0 ? text.substring(start, length) : text;
}
/*
* 弹出软键盘
*/
private void showSoftInput(View view) {
getInputMethodManager();
inputMethodManager.showSoftInput(view, 0);
view.requestFocus();
}
/*
* 隐藏软键盘
*/
private void hideSoftInput(View view) {
getInputMethodManager();
inputMethodManager.hideSoftInputFromWindow(view.getWindowToken(),
InputMethodManager.HIDE_NOT_ALWAYS);
}
/*
* 初始化searchLayout
*/
private void initSearchLayout(Context context) {
getInputMethodManager();
bus = Mogoo_ComponentBus.getInstance();
}
/*
* 获得软键盘开启入口
*/
private void getInputMethodManager() {
if(inputMethodManager == null){
inputMethodManager = ((InputMethodManager) getContext()
.getSystemService(Context.INPUT_METHOD_SERVICE));
}
}
}