/*
 * Copyright (C) 2013 Peng fei Pan <sky@xiaopan.me>
 * 
 * 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.github.lazylibrary.util;

import android.app.Activity;
import android.content.Context;
import android.view.View;
import android.view.WindowManager;
import android.view.inputmethod.InputMethodManager;
import android.widget.EditText;

public class InputMethodUtils {
    /**
     * 为给定的编辑器开启软键盘
     *
     * @param editText 给定的编辑器
     */
    public static void openSoftKeyboard(Context context, EditText editText) {
        editText.requestFocus();
        InputMethodManager inputMethodManager
                = (InputMethodManager) context.getSystemService(
                Context.INPUT_METHOD_SERVICE);
        inputMethodManager.showSoftInput(editText,
                InputMethodManager.SHOW_IMPLICIT);
        ViewUtils.setEditTextSelectionToEnd(editText);
    }


    /**
     * 关闭软键盘
     */
    public static void closeSoftKeyboard(Activity activity) {
        //隐藏软键盘
        View view = activity.getWindow().peekDecorView();
        if (view != null) {
            InputMethodManager inputmanger = (InputMethodManager) activity.getSystemService(Context.INPUT_METHOD_SERVICE);
            inputmanger.hideSoftInputFromWindow(view.getWindowToken(), 0);
        }
    }


    /**
     * 切换软键盘的状态
     */
    public static void toggleSoftKeyboardState(Context context) {
        ((InputMethodManager) context.getSystemService(
                Context.INPUT_METHOD_SERVICE)).toggleSoftInput(
                InputMethodManager.SHOW_IMPLICIT,
                InputMethodManager.HIDE_NOT_ALWAYS);
    }


    /**
     * 判断隐藏软键盘是否弹出,弹出就隐藏
     * @param mActivity
     * @return
     */
    public boolean keyBoxIsShow(Activity mActivity) {
        if (mActivity.getWindow().getAttributes().softInputMode == WindowManager.LayoutParams.SOFT_INPUT_STATE_UNSPECIFIED) {
            //隐藏软键盘
            mActivity.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN);
            return true;
        }
        else {
            return false;
        }
    }
}