gecko/mobile/android/base/home/SearchEngineRow.java
Lucas Rocha fe032ef3d3 Bug 936519 - Move general-purpose views to the widget package (r=mfinkle)
--HG--
rename : mobile/android/base/AllCapsTextView.java => mobile/android/base/widget/AllCapsTextView.java
rename : mobile/android/base/AnimatedHeightLayout.java => mobile/android/base/widget/AnimatedHeightLayout.java
rename : mobile/android/base/CheckableLinearLayout.java => mobile/android/base/widget/CheckableLinearLayout.java
rename : mobile/android/base/ClickableWhenDisabledEditText.java => mobile/android/base/widget/ClickableWhenDisabledEditText.java
rename : mobile/android/base/FlowLayout.java => mobile/android/base/widget/FlowLayout.java
2013-11-11 18:41:12 +00:00

275 lines
10 KiB
Java

/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
* 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.home;
import org.mozilla.gecko.R;
import org.mozilla.gecko.home.BrowserSearch.OnEditSuggestionListener;
import org.mozilla.gecko.home.BrowserSearch.OnSearchListener;
import org.mozilla.gecko.home.HomePager.OnUrlOpenListener;
import org.mozilla.gecko.util.StringUtils;
import org.mozilla.gecko.widget.AnimatedHeightLayout;
import org.mozilla.gecko.widget.FaviconView;
import org.mozilla.gecko.widget.FlowLayout;
import android.content.Context;
import android.util.AttributeSet;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.animation.AlphaAnimation;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import java.util.EnumSet;
class SearchEngineRow extends AnimatedHeightLayout {
// Duration for fade-in animation
private static final int ANIMATION_DURATION = 250;
// Inner views
private final FlowLayout mSuggestionView;
private final FaviconView mIconView;
private final LinearLayout mUserEnteredView;
private final TextView mUserEnteredTextView;
// Inflater used when updating from suggestions
private final LayoutInflater mInflater;
// Search engine associated with this view
private SearchEngine mSearchEngine;
// Event listeners for suggestion views
private final OnClickListener mClickListener;
private final OnLongClickListener mLongClickListener;
// On URL open listener
private OnUrlOpenListener mUrlOpenListener;
// On search listener
private OnSearchListener mSearchListener;
// On edit suggestion listener
private OnEditSuggestionListener mEditSuggestionListener;
// Selected suggestion view
private int mSelectedView = 0;
public SearchEngineRow(Context context) {
this(context, null);
}
public SearchEngineRow(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public SearchEngineRow(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
mClickListener = new OnClickListener() {
@Override
public void onClick(View v) {
final String suggestion = getSuggestionTextFromView(v);
// If we're not clicking the user-entered view (the first suggestion item)
// and the search matches a URL pattern, go to that URL. Otherwise, do a
// search for the term.
if (v != mUserEnteredView && !StringUtils.isSearchQuery(suggestion, false)) {
if (mUrlOpenListener != null) {
mUrlOpenListener.onUrlOpen(suggestion, EnumSet.noneOf(OnUrlOpenListener.Flags.class));
}
} else if (mSearchListener != null) {
mSearchListener.onSearch(mSearchEngine, suggestion);
}
}
};
mLongClickListener = new OnLongClickListener() {
@Override
public boolean onLongClick(View v) {
if (mEditSuggestionListener != null) {
final String suggestion = getSuggestionTextFromView(v);
mEditSuggestionListener.onEditSuggestion(suggestion);
return true;
}
return false;
}
};
mInflater = LayoutInflater.from(context);
mInflater.inflate(R.layout.search_engine_row, this);
mSuggestionView = (FlowLayout) findViewById(R.id.suggestion_layout);
mIconView = (FaviconView) findViewById(R.id.suggestion_icon);
// User-entered search term is first suggestion
mUserEnteredView = (LinearLayout) findViewById(R.id.suggestion_user_entered);
mUserEnteredView.setOnClickListener(mClickListener);
mUserEnteredTextView = (TextView) findViewById(R.id.suggestion_text);
}
private void setDescriptionOnSuggestion(View v, String suggestion) {
v.setContentDescription(getResources().getString(R.string.suggestion_for_engine,
mSearchEngine.name, suggestion));
}
private String getSuggestionTextFromView(View v) {
final TextView suggestionText = (TextView) v.findViewById(R.id.suggestion_text);
return suggestionText.getText().toString();
}
private void setSuggestionOnView(View v, String suggestion) {
final TextView suggestionText = (TextView) v.findViewById(R.id.suggestion_text);
suggestionText.setText(suggestion);
setDescriptionOnSuggestion(suggestionText, suggestion);
}
/**
* Perform a search for the user-entered term.
*/
public void performUserEnteredSearch() {
String searchTerm = getSuggestionTextFromView(mUserEnteredView);
if (mSearchListener != null) {
mSearchListener.onSearch(mSearchEngine, searchTerm);
}
}
public void setSearchTerm(String searchTerm) {
mUserEnteredTextView.setText(searchTerm);
// mSearchEngine is not set in the first call to this method; the content description
// is instead initially set in updateFromSearchEngine.
if (mSearchEngine != null) {
setDescriptionOnSuggestion(mUserEnteredTextView, searchTerm);
}
}
public void setOnUrlOpenListener(OnUrlOpenListener listener) {
mUrlOpenListener = listener;
}
public void setOnSearchListener(OnSearchListener listener) {
mSearchListener = listener;
}
public void setOnEditSuggestionListener(OnEditSuggestionListener listener) {
mEditSuggestionListener = listener;
}
public void updateFromSearchEngine(SearchEngine searchEngine, boolean animate) {
// Update search engine reference.
mSearchEngine = searchEngine;
// Set the search engine icon (e.g., Google) for the row.
mIconView.updateAndScaleImage(mSearchEngine.getIcon(), mSearchEngine.getEngineIdentifier());
// Set the initial content description.
setDescriptionOnSuggestion(mUserEnteredTextView, mUserEnteredTextView.getText().toString());
// Add additional suggestions given by this engine.
final int recycledSuggestionCount = mSuggestionView.getChildCount();
int suggestionCounter = 0;
for (String suggestion : mSearchEngine.getSuggestions()) {
final View suggestionItem;
// Reuse suggestion views from recycled view, if possible.
if (suggestionCounter + 1 < recycledSuggestionCount) {
suggestionItem = mSuggestionView.getChildAt(suggestionCounter + 1);
suggestionItem.setVisibility(View.VISIBLE);
} else {
suggestionItem = mInflater.inflate(R.layout.suggestion_item, null);
suggestionItem.setOnClickListener(mClickListener);
suggestionItem.setOnLongClickListener(mLongClickListener);
final ImageView magnifier =
(ImageView) suggestionItem.findViewById(R.id.suggestion_magnifier);
magnifier.setVisibility(View.GONE);
mSuggestionView.addView(suggestionItem);
}
setSuggestionOnView(suggestionItem, suggestion);
if (animate) {
AlphaAnimation anim = new AlphaAnimation(0, 1);
anim.setDuration(ANIMATION_DURATION);
anim.setStartOffset(suggestionCounter * ANIMATION_DURATION);
suggestionItem.startAnimation(anim);
}
++suggestionCounter;
}
// Hide extra suggestions that have been recycled.
for (int i = suggestionCounter + 1; i < recycledSuggestionCount; ++i) {
mSuggestionView.getChildAt(i).setVisibility(View.GONE);
}
// Make sure mSelectedView is still valid.
if (mSelectedView >= mSuggestionView.getChildCount()) {
mSelectedView = mSuggestionView.getChildCount() - 1;
}
}
@Override
public boolean onKeyDown(int keyCode, android.view.KeyEvent event) {
final View suggestion = mSuggestionView.getChildAt(mSelectedView);
if (event.getAction() != android.view.KeyEvent.ACTION_DOWN) {
return false;
}
switch (event.getKeyCode()) {
case KeyEvent.KEYCODE_DPAD_RIGHT:
final View nextSuggestion = mSuggestionView.getChildAt(mSelectedView + 1);
if (nextSuggestion != null) {
changeSelectedSuggestion(suggestion, nextSuggestion);
mSelectedView++;
return true;
}
break;
case KeyEvent.KEYCODE_DPAD_LEFT:
final View prevSuggestion = mSuggestionView.getChildAt(mSelectedView - 1);
if (prevSuggestion != null) {
changeSelectedSuggestion(suggestion, prevSuggestion);
mSelectedView--;
return true;
}
break;
case KeyEvent.KEYCODE_BUTTON_A:
// TODO: handle long pressing for editing suggestions
return suggestion.performClick();
}
return false;
}
private void changeSelectedSuggestion(View oldSuggestion, View newSuggestion) {
oldSuggestion.setDuplicateParentStateEnabled(false);
newSuggestion.setDuplicateParentStateEnabled(true);
oldSuggestion.refreshDrawableState();
newSuggestion.refreshDrawableState();
}
public void onSelected() {
mSelectedView = 0;
mUserEnteredView.setDuplicateParentStateEnabled(true);
mUserEnteredView.refreshDrawableState();
}
public void onDeselected() {
final View suggestion = mSuggestionView.getChildAt(mSelectedView);
suggestion.setDuplicateParentStateEnabled(false);
suggestion.refreshDrawableState();
}
}