michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
michael@0:  * You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: package org.mozilla.gecko;
michael@0: 
michael@0: import org.mozilla.gecko.util.GeckoEventListener;
michael@0: import org.mozilla.gecko.util.ThreadUtils;
michael@0: 
michael@0: import org.json.JSONObject;
michael@0: 
michael@0: import android.content.Context;
michael@0: import android.text.Editable;
michael@0: import android.text.TextUtils;
michael@0: import android.text.TextWatcher;
michael@0: import android.util.AttributeSet;
michael@0: import android.view.KeyEvent;
michael@0: import android.view.LayoutInflater;
michael@0: import android.view.View;
michael@0: import android.view.inputmethod.InputMethodManager;
michael@0: import android.widget.LinearLayout;
michael@0: 
michael@0: public class FindInPageBar extends LinearLayout implements TextWatcher, View.OnClickListener, GeckoEventListener  {
michael@0:     private static final String REQUEST_ID = "FindInPageBar";
michael@0: 
michael@0:     private final Context mContext;
michael@0:     private CustomEditText mFindText;
michael@0:     private boolean mInflated = false;
michael@0: 
michael@0:     public FindInPageBar(Context context, AttributeSet attrs) {
michael@0:         super(context, attrs);
michael@0:         mContext = context;
michael@0:         setFocusable(true);
michael@0:     }
michael@0: 
michael@0:     public void inflateContent() {
michael@0:         LayoutInflater inflater = LayoutInflater.from(mContext);
michael@0:         View content = inflater.inflate(R.layout.find_in_page_content, this);
michael@0: 
michael@0:         content.findViewById(R.id.find_prev).setOnClickListener(this);
michael@0:         content.findViewById(R.id.find_next).setOnClickListener(this);
michael@0:         content.findViewById(R.id.find_close).setOnClickListener(this);
michael@0: 
michael@0:         // Capture clicks on the rest of the view to prevent them from
michael@0:         // leaking into other views positioned below.
michael@0:         content.setOnClickListener(this);
michael@0: 
michael@0:         mFindText = (CustomEditText) content.findViewById(R.id.find_text);
michael@0:         mFindText.addTextChangedListener(this);
michael@0:         mFindText.setOnKeyPreImeListener(new CustomEditText.OnKeyPreImeListener() {
michael@0:             @Override
michael@0:             public boolean onKeyPreIme(View v, int keyCode, KeyEvent event) {
michael@0:                 if (keyCode == KeyEvent.KEYCODE_BACK) {
michael@0:                     hide();
michael@0:                     return true;
michael@0:                 }
michael@0:                 return false;
michael@0:             }
michael@0:         });
michael@0: 
michael@0:         mInflated = true;
michael@0:         GeckoAppShell.getEventDispatcher().registerEventListener("TextSelection:Data", this);
michael@0:     }
michael@0: 
michael@0:     public void show() {
michael@0:         if (!mInflated)
michael@0:             inflateContent();
michael@0: 
michael@0:         setVisibility(VISIBLE);
michael@0:         mFindText.requestFocus();
michael@0: 
michael@0:         // handleMessage() receives response message and determines initial state of softInput
michael@0:         GeckoAppShell.sendEventToGecko(GeckoEvent.createBroadcastEvent("TextSelection:Get", REQUEST_ID));
michael@0:     }
michael@0: 
michael@0:     public void hide() {
michael@0:         setVisibility(GONE);
michael@0:         getInputMethodManager(mFindText).hideSoftInputFromWindow(mFindText.getWindowToken(), 0);
michael@0:         GeckoAppShell.sendEventToGecko(GeckoEvent.createBroadcastEvent("FindInPage:Closed", null));
michael@0:     }
michael@0: 
michael@0:     private InputMethodManager getInputMethodManager(View view) {
michael@0:         Context context = view.getContext();
michael@0:         return (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);
michael@0:      }
michael@0: 
michael@0:     public void onDestroy() {
michael@0:         if (!mInflated) {
michael@0:             return;
michael@0:         }
michael@0:         GeckoAppShell.getEventDispatcher().unregisterEventListener("TextSelection:Data", this);
michael@0:     }
michael@0: 
michael@0:     // TextWatcher implementation
michael@0: 
michael@0:     @Override
michael@0:     public void afterTextChanged(Editable s) {
michael@0:         GeckoAppShell.sendEventToGecko(GeckoEvent.createBroadcastEvent("FindInPage:Find", s.toString()));
michael@0:     }
michael@0: 
michael@0:     @Override
michael@0:     public void beforeTextChanged(CharSequence s, int start, int count, int after) {
michael@0:         // ignore
michael@0:     }
michael@0: 
michael@0:     @Override
michael@0:     public void onTextChanged(CharSequence s, int start, int before, int count) {
michael@0:         // ignore
michael@0:     }
michael@0: 
michael@0:     // View.OnClickListener implementation
michael@0: 
michael@0:     @Override
michael@0:     public void onClick(View v) {
michael@0:         final int viewId = v.getId();
michael@0: 
michael@0:         if (viewId == R.id.find_prev) {
michael@0:             GeckoAppShell.sendEventToGecko(GeckoEvent.createBroadcastEvent("FindInPage:Prev", mFindText.getText().toString()));
michael@0:             getInputMethodManager(mFindText).hideSoftInputFromWindow(mFindText.getWindowToken(), 0);
michael@0:             return;
michael@0:         }
michael@0: 
michael@0:         if (viewId == R.id.find_next) {
michael@0:             GeckoAppShell.sendEventToGecko(GeckoEvent.createBroadcastEvent("FindInPage:Next", mFindText.getText().toString()));
michael@0:             getInputMethodManager(mFindText).hideSoftInputFromWindow(mFindText.getWindowToken(), 0);
michael@0:             return;
michael@0:         }
michael@0: 
michael@0:         if (viewId == R.id.find_close) {
michael@0:             hide();
michael@0:         }
michael@0:     }
michael@0: 
michael@0:     // GeckoEventListener implementation
michael@0: 
michael@0:     @Override
michael@0:     public void handleMessage(String event, JSONObject message) {
michael@0:         if (!event.equals("TextSelection:Data") || !REQUEST_ID.equals(message.optString("requestId"))) {
michael@0:             return;
michael@0:         }
michael@0: 
michael@0:         final String text = message.optString("text");
michael@0: 
michael@0:         // Populate an initial find string, virtual keyboard not required.
michael@0:         if (!TextUtils.isEmpty(text)) {
michael@0:             // Populate initial selection
michael@0:             ThreadUtils.postToUiThread(new Runnable() {
michael@0:                 @Override
michael@0:                 public void run() {
michael@0:                     mFindText.setText(text);
michael@0:                 }
michael@0:             });
michael@0:             return;
michael@0:         }
michael@0: 
michael@0:         // Show the virtual keyboard.
michael@0:         if (mFindText.hasWindowFocus()) {
michael@0:             getInputMethodManager(mFindText).showSoftInput(mFindText, 0);
michael@0:         } else {
michael@0:             // showSoftInput won't work until after the window is focused.
michael@0:             mFindText.setOnWindowFocusChangeListener(new CustomEditText.OnWindowFocusChangeListener() {
michael@0:                 @Override
michael@0:                 public void onWindowFocusChanged(boolean hasFocus) {
michael@0:                     if (!hasFocus)
michael@0:                         return;
michael@0: 
michael@0:                     mFindText.setOnWindowFocusChangeListener(null);
michael@0:                     getInputMethodManager(mFindText).showSoftInput(mFindText, 0);
michael@0:                }
michael@0:             });
michael@0:         }
michael@0:     }
michael@0: }