371 lines
15 KiB
Java
371 lines
15 KiB
Java
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/*
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* Copyright (C) 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.inputmethod.keyboard;
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import static com.android.inputmethod.latin.Constants.NOT_A_COORDINATE;
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import android.content.Context;
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import android.content.res.ColorStateList;
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import android.content.res.Resources;
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import android.content.res.TypedArray;
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import android.support.v4.view.PagerAdapter;
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import android.support.v4.view.ViewPager;
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import android.util.AttributeSet;
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import android.util.SparseArray;
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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.widget.ImageView;
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import android.widget.LinearLayout;
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import android.widget.TabHost;
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import android.widget.TabHost.OnTabChangeListener;
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import android.widget.TextView;
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import com.android.inputmethod.keyboard.internal.RecentsKeyboard;
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import com.android.inputmethod.keyboard.internal.ScrollKeyboardView;
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import com.android.inputmethod.keyboard.internal.ScrollViewWithNotifier;
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import com.android.inputmethod.latin.Constants;
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import com.android.inputmethod.latin.R;
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import com.android.inputmethod.latin.SubtypeSwitcher;
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import com.android.inputmethod.latin.utils.CollectionUtils;
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import com.android.inputmethod.latin.utils.ResourceUtils;
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import java.util.HashMap;
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/**
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* View class to implement Emoji keyboards.
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* The Emoji keyboard consists of group of views {@link R.layout#emoji_keyboard_view}.
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* <ol>
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* <li> Emoji category tabs.
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* <li> Delete button.
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* <li> Emoji keyboard pages that can be scrolled by swiping horizontally or by selecting a tab.
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* <li> Back to main keyboard button and enter button.
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* </ol>
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* Because of the above reasons, this class doesn't extend {@link KeyboardView}.
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*/
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public final class EmojiKeyboardView extends LinearLayout implements OnTabChangeListener,
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ViewPager.OnPageChangeListener, View.OnClickListener,
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ScrollKeyboardView.OnKeyClickListener {
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private final int mKeyBackgroundId;
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private final ColorStateList mTabLabelColor;
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private final EmojiKeyboardAdapter mEmojiKeyboardAdapter;
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private TabHost mTabHost;
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private ViewPager mEmojiPager;
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private KeyboardActionListener mKeyboardActionListener = KeyboardActionListener.EMPTY_LISTENER;
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private int mCurrentCategory = CATEGORY_UNSPECIFIED;
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private static final int CATEGORY_UNSPECIFIED = -1;
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private static final int CATEGORY_RECENTS = 0;
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private static final int CATEGORY_PEOPLE = 1;
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private static final int CATEGORY_OBJECTS = 2;
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private static final int CATEGORY_NATURE = 3;
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private static final int CATEGORY_PLACES = 4;
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private static final int CATEGORY_SYMBOLS = 5;
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private static final int CATEGORY_EMOTICONS = 6;
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private static final HashMap<String, Integer> sCategoryNameToIdMap =
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CollectionUtils.newHashMap();
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private static final String[] sCategoryName = {
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"recents", "people", "objects", "nature", "places", "symbols", "emoticons"
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};
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private static final int[] sCategoryIcon = new int[] {
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R.drawable.ic_emoji_recent_light,
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R.drawable.ic_emoji_people_light,
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R.drawable.ic_emoji_objects_light,
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R.drawable.ic_emoji_nature_light,
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R.drawable.ic_emoji_places_light,
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R.drawable.ic_emoji_symbols_light,
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0
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};
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private static final String[] sCategoryLabel = {
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null, null, null, null, null, null,
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":-)"
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};
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private static final int[] sCategoryElementId = {
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KeyboardId.ELEMENT_EMOJI_RECENTS,
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KeyboardId.ELEMENT_EMOJI_CATEGORY1,
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KeyboardId.ELEMENT_EMOJI_CATEGORY2,
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KeyboardId.ELEMENT_EMOJI_CATEGORY3,
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KeyboardId.ELEMENT_EMOJI_CATEGORY4,
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KeyboardId.ELEMENT_EMOJI_CATEGORY5,
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KeyboardId.ELEMENT_EMOJI_CATEGORY6,
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};
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public EmojiKeyboardView(final Context context, final AttributeSet attrs) {
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this(context, attrs, R.attr.emojiKeyboardViewStyle);
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}
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public EmojiKeyboardView(final Context context, final AttributeSet attrs, final int defStyle) {
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super(context, attrs, defStyle);
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final TypedArray keyboardViewAttr = context.obtainStyledAttributes(attrs,
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R.styleable.KeyboardView, defStyle, R.style.KeyboardView);
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mKeyBackgroundId = keyboardViewAttr.getResourceId(
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R.styleable.KeyboardView_keyBackground, 0);
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keyboardViewAttr.recycle();
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final TypedArray emojiKeyboardViewAttr = context.obtainStyledAttributes(attrs,
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R.styleable.EmojiKeyboardView, defStyle, R.style.EmojiKeyboardView);
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mTabLabelColor = emojiKeyboardViewAttr.getColorStateList(
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R.styleable.EmojiKeyboardView_emojiTabLabelColor);
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emojiKeyboardViewAttr.recycle();
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final KeyboardLayoutSet.Builder builder = new KeyboardLayoutSet.Builder(
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context, null /* editorInfo */);
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final Resources res = context.getResources();
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builder.setSubtype(SubtypeSwitcher.getInstance().getEmojiSubtype());
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// TODO: Make Keyboard height variable.
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builder.setKeyboardGeometry(ResourceUtils.getDefaultKeyboardWidth(res),
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(int)(ResourceUtils.getDefaultKeyboardHeight(res)
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- res.getDimension(R.dimen.suggestions_strip_height)));
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builder.setOptions(false, false, false /* lanuageSwitchKeyEnabled */);
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final KeyboardLayoutSet layoutSet = builder.build();
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mEmojiKeyboardAdapter = new EmojiKeyboardAdapter(layoutSet, this);
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// TODO: Save/restore recent keys from/to preferences.
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}
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@Override
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protected void onMeasure(final int widthMeasureSpec, final int heightMeasureSpec) {
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super.onMeasure(widthMeasureSpec, heightMeasureSpec);
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final Resources res = getContext().getResources();
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// The main keyboard expands to the entire this {@link KeyboardView}.
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final int width = ResourceUtils.getDefaultKeyboardWidth(res)
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+ getPaddingLeft() + getPaddingRight();
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final int height = ResourceUtils.getDefaultKeyboardHeight(res)
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+ res.getDimensionPixelSize(R.dimen.suggestions_strip_height)
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+ getPaddingTop() + getPaddingBottom();
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setMeasuredDimension(width, height);
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}
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private void addTab(final TabHost host, final int category) {
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final String tabId = sCategoryName[category];
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sCategoryNameToIdMap.put(tabId, category);
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final TabHost.TabSpec tspec = host.newTabSpec(tabId);
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tspec.setContent(R.id.emoji_keyboard_dummy);
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if (sCategoryIcon[category] != 0) {
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final ImageView iconView = (ImageView)LayoutInflater.from(getContext()).inflate(
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R.layout.emoji_keyboard_tab_icon, null);
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iconView.setImageResource(sCategoryIcon[category]);
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tspec.setIndicator(iconView);
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}
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if (sCategoryLabel[category] != null) {
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final TextView textView = (TextView)LayoutInflater.from(getContext()).inflate(
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R.layout.emoji_keyboard_tab_label, null);
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textView.setText(sCategoryLabel[category]);
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textView.setTextColor(mTabLabelColor);
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textView.setBackgroundResource(mKeyBackgroundId);
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tspec.setIndicator(textView);
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}
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host.addTab(tspec);
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}
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@Override
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protected void onFinishInflate() {
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mTabHost = (TabHost)findViewById(R.id.emoji_category_tabhost);
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mTabHost.setup();
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addTab(mTabHost, CATEGORY_RECENTS);
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addTab(mTabHost, CATEGORY_PEOPLE);
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addTab(mTabHost, CATEGORY_OBJECTS);
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addTab(mTabHost, CATEGORY_NATURE);
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addTab(mTabHost, CATEGORY_PLACES);
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addTab(mTabHost, CATEGORY_SYMBOLS);
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addTab(mTabHost, CATEGORY_EMOTICONS);
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mTabHost.setOnTabChangedListener(this);
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mTabHost.getTabWidget().setStripEnabled(true);
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mEmojiPager = (ViewPager)findViewById(R.id.emoji_keyboard_pager);
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mEmojiPager.setAdapter(mEmojiKeyboardAdapter);
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mEmojiPager.setOnPageChangeListener(this);
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mEmojiPager.setOffscreenPageLimit(0);
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final ViewGroup.LayoutParams lp = mEmojiPager.getLayoutParams();
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final Resources res = getResources();
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lp.height = ResourceUtils.getDefaultKeyboardHeight(res)
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- res.getDimensionPixelSize(R.dimen.suggestions_strip_height);
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mEmojiPager.setLayoutParams(lp);
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// TODO: Record current category.
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final int category = CATEGORY_PEOPLE;
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setCurrentCategory(category, true /* force */);
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// TODO: Implement auto repeat, using View.OnTouchListener?
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final View deleteKey = findViewById(R.id.emoji_keyboard_delete);
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deleteKey.setBackgroundResource(mKeyBackgroundId);
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deleteKey.setTag(Constants.CODE_DELETE);
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deleteKey.setOnClickListener(this);
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final View alphabetKey = findViewById(R.id.emoji_keyboard_alphabet);
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alphabetKey.setBackgroundResource(mKeyBackgroundId);
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alphabetKey.setTag(Constants.CODE_SWITCH_ALPHA_SYMBOL);
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alphabetKey.setOnClickListener(this);
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final View sendKey = findViewById(R.id.emoji_keyboard_send);
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sendKey.setBackgroundResource(mKeyBackgroundId);
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sendKey.setTag(Constants.CODE_ENTER);
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sendKey.setOnClickListener(this);
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}
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@Override
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public void onTabChanged(final String tabId) {
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final int category = sCategoryNameToIdMap.get(tabId);
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setCurrentCategory(category, false /* force */);
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}
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@Override
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public void onPageSelected(final int position) {
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setCurrentCategory(position, false /* force */);
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}
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@Override
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public void onPageScrollStateChanged(final int state) {
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// Ignore this message. Only want the actual page selected.
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}
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@Override
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public void onPageScrolled(final int position, final float positionOffset,
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final int positionOffsetPixels) {
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// Ignore this message. Only want the actual page selected.
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}
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@Override
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public void onClick(final View v) {
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if (v.getTag() instanceof Integer) {
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final int code = (Integer)v.getTag();
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registerCode(code);
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return;
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}
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}
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private void registerCode(final int code) {
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mKeyboardActionListener.onPressKey(code, 0 /* repeatCount */, true /* isSinglePointer */);
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mKeyboardActionListener.onCodeInput(code, NOT_A_COORDINATE, NOT_A_COORDINATE);
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mKeyboardActionListener.onReleaseKey(code, false /* withSliding */);
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}
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@Override
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public void onKeyClick(final Key key) {
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mEmojiKeyboardAdapter.addRecentKey(key);
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final int code = key.getCode();
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if (code == Constants.CODE_OUTPUT_TEXT) {
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mKeyboardActionListener.onTextInput(key.getOutputText());
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return;
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}
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registerCode(code);
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}
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public void setHardwareAcceleratedDrawingEnabled(final boolean enabled) {
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// TODO:
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}
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public void setKeyboardActionListener(final KeyboardActionListener listener) {
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mKeyboardActionListener = listener;
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}
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private void setCurrentCategory(final int category, final boolean force) {
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if (mCurrentCategory == category && !force) {
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return;
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}
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mCurrentCategory = category;
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if (force || mEmojiPager.getCurrentItem() != category) {
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mEmojiPager.setCurrentItem(category, true /* smoothScroll */);
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}
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if (force || mTabHost.getCurrentTab() != category) {
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mTabHost.setCurrentTab(category);
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}
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// TODO: Record current category
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}
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private static class EmojiKeyboardAdapter extends PagerAdapter {
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private final ScrollKeyboardView.OnKeyClickListener mListener;
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private final KeyboardLayoutSet mLayoutSet;
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private final RecentsKeyboard mRecentsKeyboard;
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private final SparseArray<ScrollKeyboardView> mActiveKeyboardView =
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CollectionUtils.newSparseArray();
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private int mActivePosition = CATEGORY_UNSPECIFIED;
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public EmojiKeyboardAdapter(final KeyboardLayoutSet layoutSet,
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final ScrollKeyboardView.OnKeyClickListener listener) {
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mListener = listener;
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mLayoutSet = layoutSet;
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mRecentsKeyboard = new RecentsKeyboard(
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layoutSet.getKeyboard(KeyboardId.ELEMENT_EMOJI_RECENTS));
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}
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public void addRecentKey(final Key key) {
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if (mActivePosition == CATEGORY_RECENTS) {
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return;
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}
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mRecentsKeyboard.addRecentKey(key);
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final KeyboardView recentKeyboardView = mActiveKeyboardView.get(CATEGORY_RECENTS);
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if (recentKeyboardView != null) {
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recentKeyboardView.invalidateAllKeys();
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}
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}
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@Override
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public int getCount() {
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return sCategoryName.length;
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}
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@Override
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public void setPrimaryItem(final View container, final int position, final Object object) {
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if (mActivePosition == position) {
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return;
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}
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final ScrollKeyboardView oldKeyboardView = mActiveKeyboardView.get(mActivePosition);
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if (oldKeyboardView != null) {
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oldKeyboardView.releaseCurrentKey();
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oldKeyboardView.deallocateMemory();
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}
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mActivePosition = position;
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}
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@Override
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public Object instantiateItem(final ViewGroup container, final int position) {
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final int elementId = sCategoryElementId[position];
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final Keyboard keyboard = (elementId == KeyboardId.ELEMENT_EMOJI_RECENTS)
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? mRecentsKeyboard : mLayoutSet.getKeyboard(elementId);
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final LayoutInflater inflater = LayoutInflater.from(container.getContext());
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final View view = inflater.inflate(
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R.layout.emoji_keyboard_page, container, false /* attachToRoot */);
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final ScrollKeyboardView keyboardView = (ScrollKeyboardView)view.findViewById(
|
||
|
|
R.id.emoji_keyboard_page);
|
||
|
|
keyboardView.setKeyboard(keyboard);
|
||
|
|
keyboardView.setOnKeyClickListener(mListener);
|
||
|
|
final ScrollViewWithNotifier scrollView = (ScrollViewWithNotifier)view.findViewById(
|
||
|
|
R.id.emoji_keyboard_scroller);
|
||
|
|
keyboardView.setScrollView(scrollView);
|
||
|
|
container.addView(view);
|
||
|
|
mActiveKeyboardView.put(position, keyboardView);
|
||
|
|
return view;
|
||
|
|
}
|
||
|
|
|
||
|
|
@Override
|
||
|
|
public boolean isViewFromObject(final View view, final Object object) {
|
||
|
|
return view == object;
|
||
|
|
}
|
||
|
|
|
||
|
|
@Override
|
||
|
|
public void destroyItem(final ViewGroup container, final int position,
|
||
|
|
final Object object) {
|
||
|
|
final ScrollKeyboardView keyboardView = mActiveKeyboardView.get(position);
|
||
|
|
if (keyboardView != null) {
|
||
|
|
keyboardView.deallocateMemory();
|
||
|
|
mActiveKeyboardView.remove(position);
|
||
|
|
}
|
||
|
|
container.removeView(keyboardView);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|