gecko/mobile/android/base/FindInPageBar.java

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