mirror of
https://github.com/mozilla/gecko-dev.git
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403 lines
16 KiB
Java
403 lines
16 KiB
Java
/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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package org.mozilla.gecko;
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import org.mozilla.gecko.gfx.FloatSize;
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import org.mozilla.gecko.gfx.ImmutableViewportMetrics;
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import org.mozilla.gecko.util.GeckoEventListener;
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import org.mozilla.gecko.util.ThreadUtils;
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import org.json.JSONArray;
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import org.json.JSONException;
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import org.json.JSONObject;
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import android.content.Context;
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import android.content.res.Resources;
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import android.graphics.PointF;
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import android.util.AttributeSet;
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import android.util.Log;
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import android.util.Pair;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.view.animation.Animation;
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import android.view.animation.AnimationUtils;
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import android.view.inputmethod.InputMethodManager;
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import android.widget.AdapterView;
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import android.widget.AdapterView.OnItemClickListener;
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import android.widget.ArrayAdapter;
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import android.widget.ImageView;
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import android.widget.ListView;
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import android.widget.RelativeLayout;
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import android.widget.TextView;
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import java.util.Arrays;
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import java.util.Collection;
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public class FormAssistPopup extends RelativeLayout implements GeckoEventListener {
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private Context mContext;
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private Animation mAnimation;
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private ListView mAutoCompleteList;
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private RelativeLayout mValidationMessage;
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private TextView mValidationMessageText;
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private ImageView mValidationMessageArrow;
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private ImageView mValidationMessageArrowInverted;
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private double mX;
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private double mY;
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private double mW;
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private double mH;
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private boolean mIsAutoComplete = true;
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private static int sAutoCompleteMinWidth = 0;
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private static int sAutoCompleteRowHeight = 0;
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private static int sValidationMessageHeight = 0;
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private static int sValidationTextMarginTop = 0;
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private static RelativeLayout.LayoutParams sValidationTextLayoutNormal;
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private static RelativeLayout.LayoutParams sValidationTextLayoutInverted;
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private static final String LOGTAG = "GeckoFormAssistPopup";
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// The blocklist is so short that ArrayList is probably cheaper than HashSet.
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private static final Collection<String> sInputMethodBlocklist = Arrays.asList(new String[] {
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InputMethods.METHOD_GOOGLE_JAPANESE_INPUT, // bug 775850
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InputMethods.METHOD_OPENWNN_PLUS, // bug 768108
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InputMethods.METHOD_SIMEJI, // bug 768108
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InputMethods.METHOD_SWYPE, // bug 755909
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InputMethods.METHOD_SWYPE_BETA, // bug 755909
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});
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public FormAssistPopup(Context context, AttributeSet attrs) {
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super(context, attrs);
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mContext = context;
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mAnimation = AnimationUtils.loadAnimation(context, R.anim.grow_fade_in);
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mAnimation.setDuration(75);
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setFocusable(false);
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registerEventListener("FormAssist:AutoComplete");
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registerEventListener("FormAssist:ValidationMessage");
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registerEventListener("FormAssist:Hide");
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}
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void destroy() {
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unregisterEventListener("FormAssist:AutoComplete");
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unregisterEventListener("FormAssist:ValidationMessage");
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unregisterEventListener("FormAssist:Hide");
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}
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@Override
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public void handleMessage(String event, JSONObject message) {
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try {
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if (event.equals("FormAssist:AutoComplete")) {
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handleAutoCompleteMessage(message);
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} else if (event.equals("FormAssist:ValidationMessage")) {
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handleValidationMessage(message);
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} else if (event.equals("FormAssist:Hide")) {
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handleHideMessage(message);
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}
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} catch (Exception e) {
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Log.e(LOGTAG, "Exception handling message \"" + event + "\":", e);
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}
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}
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private void handleAutoCompleteMessage(JSONObject message) throws JSONException {
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final JSONArray suggestions = message.getJSONArray("suggestions");
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final JSONObject rect = message.getJSONObject("rect");
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ThreadUtils.postToUiThread(new Runnable() {
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@Override
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public void run() {
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showAutoCompleteSuggestions(suggestions, rect);
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}
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});
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}
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private void handleValidationMessage(JSONObject message) throws JSONException {
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final String validationMessage = message.getString("validationMessage");
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final JSONObject rect = message.getJSONObject("rect");
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ThreadUtils.postToUiThread(new Runnable() {
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@Override
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public void run() {
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showValidationMessage(validationMessage, rect);
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}
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});
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}
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private void handleHideMessage(JSONObject message) {
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ThreadUtils.postToUiThread(new Runnable() {
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@Override
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public void run() {
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hide();
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}
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});
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}
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private void showAutoCompleteSuggestions(JSONArray suggestions, JSONObject rect) {
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if (mAutoCompleteList == null) {
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LayoutInflater inflater = LayoutInflater.from(mContext);
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mAutoCompleteList = (ListView) inflater.inflate(R.layout.autocomplete_list, null);
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mAutoCompleteList.setOnItemClickListener(new OnItemClickListener() {
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@Override
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public void onItemClick(AdapterView<?> parentView, View view, int position, long id) {
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// Use the value stored with the autocomplete view, not the label text,
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// since they can be different.
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TextView textView = (TextView) view;
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String value = (String) textView.getTag();
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broadcastGeckoEvent("FormAssist:AutoComplete", value);
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hide();
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}
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});
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addView(mAutoCompleteList);
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}
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AutoCompleteListAdapter adapter = new AutoCompleteListAdapter(mContext, R.layout.autocomplete_list_item);
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adapter.populateSuggestionsList(suggestions);
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mAutoCompleteList.setAdapter(adapter);
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if (setGeckoPositionData(rect, true)) {
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positionAndShowPopup();
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}
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}
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private void showValidationMessage(String validationMessage, JSONObject rect) {
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if (mValidationMessage == null) {
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LayoutInflater inflater = LayoutInflater.from(mContext);
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mValidationMessage = (RelativeLayout) inflater.inflate(R.layout.validation_message, null);
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addView(mValidationMessage);
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mValidationMessageText = (TextView) mValidationMessage.findViewById(R.id.validation_message_text);
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sValidationTextMarginTop = (int) (mContext.getResources().getDimension(R.dimen.validation_message_margin_top));
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sValidationTextLayoutNormal = new RelativeLayout.LayoutParams(mValidationMessageText.getLayoutParams());
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sValidationTextLayoutNormal.setMargins(0, sValidationTextMarginTop, 0, 0);
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sValidationTextLayoutInverted = new RelativeLayout.LayoutParams(sValidationTextLayoutNormal);
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sValidationTextLayoutInverted.setMargins(0, 0, 0, 0);
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mValidationMessageArrow = (ImageView) mValidationMessage.findViewById(R.id.validation_message_arrow);
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mValidationMessageArrowInverted = (ImageView) mValidationMessage.findViewById(R.id.validation_message_arrow_inverted);
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}
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mValidationMessageText.setText(validationMessage);
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// We need to set the text as selected for the marquee text to work.
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mValidationMessageText.setSelected(true);
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if (setGeckoPositionData(rect, false)) {
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positionAndShowPopup();
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}
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}
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private boolean setGeckoPositionData(JSONObject rect, boolean isAutoComplete) {
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try {
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mX = rect.getDouble("x");
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mY = rect.getDouble("y");
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mW = rect.getDouble("w");
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mH = rect.getDouble("h");
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} catch (JSONException e) {
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// Bail if we can't get the correct dimensions for the popup.
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Log.e(LOGTAG, "Error getting FormAssistPopup dimensions", e);
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return false;
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}
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mIsAutoComplete = isAutoComplete;
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return true;
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}
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private void positionAndShowPopup() {
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positionAndShowPopup(GeckoAppShell.getLayerView().getViewportMetrics());
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}
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private void positionAndShowPopup(ImmutableViewportMetrics aMetrics) {
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ThreadUtils.assertOnUiThread();
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// Don't show the form assist popup when using fullscreen VKB
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InputMethodManager imm =
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(InputMethodManager) GeckoAppShell.getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
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if (imm.isFullscreenMode())
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return;
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// Hide/show the appropriate popup contents
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if (mAutoCompleteList != null)
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mAutoCompleteList.setVisibility(mIsAutoComplete ? VISIBLE : GONE);
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if (mValidationMessage != null)
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mValidationMessage.setVisibility(mIsAutoComplete ? GONE : VISIBLE);
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if (sAutoCompleteMinWidth == 0) {
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Resources res = mContext.getResources();
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sAutoCompleteMinWidth = (int) (res.getDimension(R.dimen.autocomplete_min_width));
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sAutoCompleteRowHeight = (int) (res.getDimension(R.dimen.autocomplete_row_height));
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sValidationMessageHeight = (int) (res.getDimension(R.dimen.validation_message_height));
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}
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float zoom = aMetrics.zoomFactor;
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PointF offset = aMetrics.getMarginOffset();
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// These values correspond to the input box for which we want to
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// display the FormAssistPopup.
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int left = (int) (mX * zoom - aMetrics.viewportRectLeft + offset.x);
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int top = (int) (mY * zoom - aMetrics.viewportRectTop + offset.y);
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int width = (int) (mW * zoom);
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int height = (int) (mH * zoom);
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int popupWidth = RelativeLayout.LayoutParams.FILL_PARENT;
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int popupLeft = left < 0 ? 0 : left;
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FloatSize viewport = aMetrics.getSize();
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// For autocomplete suggestions, if the input is smaller than the screen-width,
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// shrink the popup's width. Otherwise, keep it as FILL_PARENT.
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if (mIsAutoComplete && (left + width) < viewport.width) {
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popupWidth = left < 0 ? left + width : width;
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// Ensure the popup has a minimum width.
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if (popupWidth < sAutoCompleteMinWidth) {
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popupWidth = sAutoCompleteMinWidth;
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// Move the popup to the left if there isn't enough room for it.
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if ((popupLeft + popupWidth) > viewport.width)
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popupLeft = (int) (viewport.width - popupWidth);
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}
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}
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int popupHeight;
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if (mIsAutoComplete)
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popupHeight = sAutoCompleteRowHeight * mAutoCompleteList.getAdapter().getCount();
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else
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popupHeight = sValidationMessageHeight;
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int popupTop = top + height;
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if (!mIsAutoComplete) {
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mValidationMessageText.setLayoutParams(sValidationTextLayoutNormal);
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mValidationMessageArrow.setVisibility(VISIBLE);
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mValidationMessageArrowInverted.setVisibility(GONE);
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}
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// If the popup doesn't fit below the input box, shrink its height, or
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// see if we can place it above the input instead.
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if ((popupTop + popupHeight) > viewport.height) {
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// Find where the maximum space is, and put the popup there.
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if ((viewport.height - popupTop) > top) {
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// Shrink the height to fit it below the input box.
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popupHeight = (int) (viewport.height - popupTop);
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} else {
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if (popupHeight < top) {
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// No shrinking needed to fit on top.
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popupTop = (top - popupHeight);
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} else {
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// Shrink to available space on top.
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popupTop = 0;
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popupHeight = top;
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}
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if (!mIsAutoComplete) {
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mValidationMessageText.setLayoutParams(sValidationTextLayoutInverted);
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mValidationMessageArrow.setVisibility(GONE);
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mValidationMessageArrowInverted.setVisibility(VISIBLE);
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}
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}
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}
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RelativeLayout.LayoutParams layoutParams =
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new RelativeLayout.LayoutParams(popupWidth, popupHeight);
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layoutParams.setMargins(popupLeft, popupTop, 0, 0);
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setLayoutParams(layoutParams);
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requestLayout();
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if (!isShown()) {
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setVisibility(VISIBLE);
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startAnimation(mAnimation);
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}
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}
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public void hide() {
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if (isShown()) {
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setVisibility(GONE);
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broadcastGeckoEvent("FormAssist:Hidden", null);
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}
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}
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void onInputMethodChanged(String newInputMethod) {
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boolean blocklisted = sInputMethodBlocklist.contains(newInputMethod);
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broadcastGeckoEvent("FormAssist:Blocklisted", String.valueOf(blocklisted));
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}
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void onMetricsChanged(final ImmutableViewportMetrics aMetrics) {
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if (!isShown()) {
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return;
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}
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ThreadUtils.postToUiThread(new Runnable() {
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@Override
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public void run() {
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positionAndShowPopup(aMetrics);
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}
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});
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}
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private static void broadcastGeckoEvent(String eventName, String eventData) {
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GeckoAppShell.sendEventToGecko(GeckoEvent.createBroadcastEvent(eventName, eventData));
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}
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private class AutoCompleteListAdapter extends ArrayAdapter<Pair<String, String>> {
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private LayoutInflater mInflater;
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private int mTextViewResourceId;
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public AutoCompleteListAdapter(Context context, int textViewResourceId) {
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super(context, textViewResourceId);
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mInflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
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mTextViewResourceId = textViewResourceId;
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}
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// This method takes an array of autocomplete suggestions with label/value properties
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// and adds label/value Pair objects to the array that backs the adapter.
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public void populateSuggestionsList(JSONArray suggestions) {
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try {
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for (int i = 0; i < suggestions.length(); i++) {
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JSONObject suggestion = suggestions.getJSONObject(i);
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String label = suggestion.getString("label");
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String value = suggestion.getString("value");
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add(new Pair<String, String>(label, value));
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}
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} catch (JSONException e) {
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Log.e(LOGTAG, "JSONException", e);
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}
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}
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@Override
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public View getView(int position, View convertView, ViewGroup parent) {
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if (convertView == null)
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convertView = mInflater.inflate(mTextViewResourceId, null);
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Pair<String, String> item = getItem(position);
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TextView itemView = (TextView) convertView;
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// Set the text with the suggestion label
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itemView.setText(item.first);
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// Set a tag with the suggestion value
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itemView.setTag(item.second);
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return convertView;
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}
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}
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private void registerEventListener(String event) {
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GeckoAppShell.getEventDispatcher().registerEventListener(event, this);
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}
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private void unregisterEventListener(String event) {
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GeckoAppShell.getEventDispatcher().unregisterEventListener(event, this);
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}
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}
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