Fixing focus issues in Launcher (keyboard support).
Change-Id: Ieafd713393daf5628f229a66441bd3ed293245da
This commit is contained in:
Winson Chung
@@ -0,0 +1,772 @@
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/*
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* Copyright (C) 2011 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.launcher2;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.Comparator;
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import android.view.KeyEvent;
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import android.view.View;
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import android.view.ViewGroup;
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import android.view.ViewParent;
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import android.widget.TabHost;
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import android.widget.TabWidget;
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import com.android.launcher.R;
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/**
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* A keyboard listener we set on all the button bar buttons.
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*/
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class ButtonBarKeyEventListener implements View.OnKeyListener {
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@Override
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public boolean onKey(View v, int keyCode, KeyEvent event) {
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return FocusHelper.handleButtonBarButtonKeyEvent(v, keyCode, event);
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}
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}
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/**
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* A keyboard listener we set on the last tab button in AllApps to jump to then
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* market icon and vice versa.
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*/
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class AllAppsTabKeyEventListener implements View.OnKeyListener {
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@Override
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public boolean onKey(View v, int keyCode, KeyEvent event) {
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return FocusHelper.handleAllAppsTabKeyEvent(v, keyCode, event);
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}
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}
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public class FocusHelper {
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/**
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* Private helper to get the parent TabHost in the view hiearchy.
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*/
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private static TabHost findTabHostParent(View v) {
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ViewParent p = v.getParent();
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while (p != null && !(p instanceof TabHost)) {
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p = p.getParent();
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}
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return (TabHost) p;
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}
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/**
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* Handles key events in a AllApps tab between the last tab view and the shop button.
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*/
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static boolean handleAllAppsTabKeyEvent(View v, int keyCode, KeyEvent e) {
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final TabHost tabHost = findTabHostParent(v);
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final ViewGroup contents = (ViewGroup)
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tabHost.findViewById(com.android.internal.R.id.tabcontent);
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final View shop = tabHost.findViewById(R.id.market_button);
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final int action = e.getAction();
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final boolean handleKeyEvent = (action != KeyEvent.ACTION_UP);
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boolean wasHandled = false;
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switch (keyCode) {
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case KeyEvent.KEYCODE_DPAD_RIGHT:
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if (handleKeyEvent) {
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// Select the shop button if we aren't on it
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if (v != shop) {
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shop.requestFocus();
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}
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}
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wasHandled = true;
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break;
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case KeyEvent.KEYCODE_DPAD_DOWN:
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if (handleKeyEvent) {
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// Select the content view (down is handled by the tab key handler otherwise)
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if (v == shop) {
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contents.requestFocus();
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wasHandled = true;
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}
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}
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break;
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default: break;
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}
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return wasHandled;
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}
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/**
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* Private helper to determine whether a view is visible.
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*/
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private static boolean isVisible(View v) {
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return v.getVisibility() == View.VISIBLE;
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}
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/**
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* Handles key events in a PageViewExtendedLayout containing PagedViewWidgets.
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*/
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static boolean handlePagedViewWidgetKeyEvent(PagedViewWidget w, int keyCode, KeyEvent e) {
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if (!LauncherApplication.isScreenXLarge()) return false;
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final PagedViewExtendedLayout parent = (PagedViewExtendedLayout) w.getParent();
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final ViewGroup container = (ViewGroup) parent.getParent();
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final TabHost tabHost = findTabHostParent(container);
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final TabWidget tabs = (TabWidget) tabHost.findViewById(com.android.internal.R.id.tabs);
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final int widgetIndex = parent.indexOfChild(w);
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final int widgetCount = parent.getChildCount();
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final int pageIndex = container.indexOfChild(parent);
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final int pageCount = container.getChildCount();
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final int action = e.getAction();
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final boolean handleKeyEvent = (action != KeyEvent.ACTION_UP);
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PagedViewExtendedLayout newParent = null;
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boolean wasHandled = false;
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switch (keyCode) {
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case KeyEvent.KEYCODE_DPAD_LEFT:
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if (handleKeyEvent) {
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// Select the previous widget or the last widget on the previous page
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if (widgetIndex > 0) {
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parent.getChildAt(widgetIndex - 1).requestFocus();
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} else {
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if (pageIndex > 0) {
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newParent = (PagedViewExtendedLayout)
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container.getChildAt(pageIndex - 1);
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newParent.getChildAt(newParent.getChildCount() - 1).requestFocus();
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}
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}
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}
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wasHandled = true;
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break;
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case KeyEvent.KEYCODE_DPAD_RIGHT:
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if (handleKeyEvent) {
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// Select the next widget or the first widget on the next page
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if (widgetIndex < (widgetCount - 1)) {
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parent.getChildAt(widgetIndex + 1).requestFocus();
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} else {
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if (pageIndex < (pageCount - 1)) {
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newParent = (PagedViewExtendedLayout)
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container.getChildAt(pageIndex + 1);
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newParent.getChildAt(0).requestFocus();
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}
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}
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}
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wasHandled = true;
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break;
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case KeyEvent.KEYCODE_DPAD_UP:
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if (handleKeyEvent) {
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// Select widgets tab on the tab bar
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tabs.requestFocus();
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}
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wasHandled = true;
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break;
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case KeyEvent.KEYCODE_DPAD_DOWN:
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if (handleKeyEvent) {
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// TODO: Should focus the global search bar
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}
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wasHandled = true;
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break;
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case KeyEvent.KEYCODE_ENTER:
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case KeyEvent.KEYCODE_DPAD_CENTER:
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if (handleKeyEvent) {
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// Simulate a click on the widget
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View.OnClickListener clickListener = (View.OnClickListener) container;
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clickListener.onClick(w);
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}
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wasHandled = true;
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break;
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case KeyEvent.KEYCODE_PAGE_UP:
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if (handleKeyEvent) {
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// Select the first item on the previous page, or the first item on this page
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// if there is no previous page
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if (pageIndex > 0) {
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newParent = (PagedViewExtendedLayout) container.getChildAt(pageIndex - 1);
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newParent.getChildAt(0).requestFocus();
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} else {
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parent.getChildAt(0).requestFocus();
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}
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}
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wasHandled = true;
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break;
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case KeyEvent.KEYCODE_PAGE_DOWN:
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if (handleKeyEvent) {
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// Select the first item on the next page, or the last item on this page
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// if there is no next page
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if (pageIndex < (pageCount - 1)) {
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newParent = (PagedViewExtendedLayout) container.getChildAt(pageIndex + 1);
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newParent.getChildAt(0).requestFocus();
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} else {
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parent.getChildAt(widgetCount - 1).requestFocus();
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}
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}
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wasHandled = true;
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break;
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case KeyEvent.KEYCODE_MOVE_HOME:
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if (handleKeyEvent) {
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// Select the first item on this page
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parent.getChildAt(0).requestFocus();
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}
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wasHandled = true;
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break;
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case KeyEvent.KEYCODE_MOVE_END:
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if (handleKeyEvent) {
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// Select the last item on this page
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parent.getChildAt(widgetCount - 1).requestFocus();
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}
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wasHandled = true;
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break;
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default: break;
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}
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return wasHandled;
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}
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/**
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* Private helper method to get the PagedViewCellLayoutChildren given a PagedViewCellLayout
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* index.
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*/
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private static PagedViewCellLayoutChildren getPagedViewCellLayoutChildrenForIndex(
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ViewGroup container, int i) {
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ViewGroup parent = (ViewGroup) container.getChildAt(i);
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return (PagedViewCellLayoutChildren) parent.getChildAt(0);
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}
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/**
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* Handles key events in a PageViewCellLayout containing PagedViewIcons.
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*/
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static boolean handlePagedViewIconKeyEvent(PagedViewIcon v, int keyCode, KeyEvent e) {
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if (!LauncherApplication.isScreenXLarge()) return false;
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final PagedViewCellLayoutChildren parent = (PagedViewCellLayoutChildren) v.getParent();
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final PagedViewCellLayout parentLayout = (PagedViewCellLayout) parent.getParent();
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// Note we have an extra parent because of the
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// PagedViewCellLayout/PagedViewCellLayoutChildren relationship
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final ViewGroup container = (ViewGroup) parentLayout.getParent();
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final TabHost tabHost = findTabHostParent(container);
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final TabWidget tabs = (TabWidget) tabHost.findViewById(com.android.internal.R.id.tabs);
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final int widgetIndex = parent.indexOfChild(v);
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final int widgetCount = parent.getChildCount();
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final int pageIndex = container.indexOfChild(parentLayout);
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final int pageCount = container.getChildCount();
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final int cellCountX = parentLayout.getCellCountX();
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final int cellCountY = parentLayout.getCellCountY();
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final int x = widgetIndex % cellCountX;
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final int y = widgetIndex / cellCountX;
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final int action = e.getAction();
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final boolean handleKeyEvent = (action != KeyEvent.ACTION_UP);
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PagedViewCellLayoutChildren newParent = null;
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boolean wasHandled = false;
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switch (keyCode) {
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case KeyEvent.KEYCODE_DPAD_LEFT:
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if (handleKeyEvent) {
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// Select the previous icon or the last icon on the previous page
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if (widgetIndex > 0) {
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parent.getChildAt(widgetIndex - 1).requestFocus();
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} else {
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if (pageIndex > 0) {
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newParent = getPagedViewCellLayoutChildrenForIndex(container,
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pageIndex - 1);
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newParent.getChildAt(newParent.getChildCount() - 1).requestFocus();
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}
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}
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}
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wasHandled = true;
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break;
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case KeyEvent.KEYCODE_DPAD_RIGHT:
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if (handleKeyEvent) {
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// Select the next icon or the first icon on the next page
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if (widgetIndex < (widgetCount - 1)) {
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parent.getChildAt(widgetIndex + 1).requestFocus();
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} else {
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if (pageIndex < (pageCount - 1)) {
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newParent = getPagedViewCellLayoutChildrenForIndex(container,
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pageIndex + 1);
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newParent.getChildAt(0).requestFocus();
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}
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}
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}
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wasHandled = true;
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break;
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case KeyEvent.KEYCODE_DPAD_UP:
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if (handleKeyEvent) {
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// Select the closest icon in the previous row, otherwise select the tab bar
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if (y > 0) {
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int newWidgetIndex = ((y - 1) * cellCountX) + x;
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parent.getChildAt(newWidgetIndex).requestFocus();
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} else {
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tabs.requestFocus();
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}
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}
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wasHandled = true;
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break;
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case KeyEvent.KEYCODE_DPAD_DOWN:
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if (handleKeyEvent) {
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// Select the closest icon in the previous row, otherwise do nothing
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if (y < (cellCountY - 1)) {
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int newWidgetIndex = Math.min(widgetCount - 1, ((y + 1) * cellCountX) + x);
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parent.getChildAt(newWidgetIndex).requestFocus();
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}
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}
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wasHandled = true;
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break;
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case KeyEvent.KEYCODE_ENTER:
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case KeyEvent.KEYCODE_DPAD_CENTER:
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if (handleKeyEvent) {
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// Simulate a click on the icon
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View.OnClickListener clickListener = (View.OnClickListener) container;
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clickListener.onClick(v);
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}
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wasHandled = true;
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break;
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case KeyEvent.KEYCODE_PAGE_UP:
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if (handleKeyEvent) {
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// Select the first icon on the previous page, or the first icon on this page
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// if there is no previous page
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if (pageIndex > 0) {
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newParent = getPagedViewCellLayoutChildrenForIndex(container,
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pageIndex - 1);
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newParent.getChildAt(0).requestFocus();
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} else {
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parent.getChildAt(0).requestFocus();
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}
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}
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wasHandled = true;
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break;
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case KeyEvent.KEYCODE_PAGE_DOWN:
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if (handleKeyEvent) {
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// Select the first icon on the next page, or the last icon on this page
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// if there is no next page
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if (pageIndex < (pageCount - 1)) {
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newParent = getPagedViewCellLayoutChildrenForIndex(container,
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pageIndex + 1);
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newParent.getChildAt(0).requestFocus();
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} else {
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parent.getChildAt(widgetCount - 1).requestFocus();
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}
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}
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wasHandled = true;
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break;
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case KeyEvent.KEYCODE_MOVE_HOME:
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if (handleKeyEvent) {
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// Select the first icon on this page
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parent.getChildAt(0).requestFocus();
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}
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wasHandled = true;
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break;
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case KeyEvent.KEYCODE_MOVE_END:
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if (handleKeyEvent) {
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// Select the last icon on this page
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parent.getChildAt(widgetCount - 1).requestFocus();
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}
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wasHandled = true;
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break;
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default: break;
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}
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return wasHandled;
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}
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/**
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* Handles key events in the tab widget.
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*/
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static boolean handleTabKeyEvent(AccessibleTabView v, int keyCode, KeyEvent e) {
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if (!LauncherApplication.isScreenXLarge()) return false;
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final FocusOnlyTabWidget parent = (FocusOnlyTabWidget) v.getParent();
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final TabHost tabHost = findTabHostParent(parent);
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final ViewGroup contents = (ViewGroup)
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tabHost.findViewById(com.android.internal.R.id.tabcontent);
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final int tabCount = parent.getTabCount();
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final int tabIndex = parent.getChildTabIndex(v);
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final int action = e.getAction();
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final boolean handleKeyEvent = (action != KeyEvent.ACTION_UP);
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boolean wasHandled = false;
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switch (keyCode) {
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case KeyEvent.KEYCODE_DPAD_LEFT:
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if (handleKeyEvent) {
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// Select the previous tab
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if (tabIndex > 0) {
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parent.getChildTabViewAt(tabIndex - 1).requestFocus();
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}
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}
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wasHandled = true;
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break;
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case KeyEvent.KEYCODE_DPAD_RIGHT:
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if (handleKeyEvent) {
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// Select the next tab, or if the last tab has a focus right id, select that
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if (tabIndex < (tabCount - 1)) {
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parent.getChildTabViewAt(tabIndex + 1).requestFocus();
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} else {
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if (v.getNextFocusRightId() != View.NO_ID) {
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tabHost.findViewById(v.getNextFocusRightId()).requestFocus();
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}
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}
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}
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wasHandled = true;
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break;
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case KeyEvent.KEYCODE_DPAD_UP:
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// Do nothing
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wasHandled = true;
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break;
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case KeyEvent.KEYCODE_DPAD_DOWN:
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if (handleKeyEvent) {
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// Select the content view
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contents.requestFocus();
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}
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wasHandled = true;
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break;
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default: break;
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}
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return wasHandled;
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}
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/**
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* Handles key events in a the workspace button bar.
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*/
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static boolean handleButtonBarButtonKeyEvent(View v, int keyCode, KeyEvent e) {
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if (!LauncherApplication.isScreenXLarge()) return false;
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final ViewGroup parent = (ViewGroup) v.getParent();
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final ViewGroup launcher = (ViewGroup) parent.getParent();
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final Workspace workspace = (Workspace) launcher.findViewById(R.id.workspace);
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final int buttonIndex = parent.indexOfChild(v);
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final int buttonCount = parent.getChildCount();
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final int pageIndex = workspace.getCurrentPage();
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final int pageCount = workspace.getChildCount();
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final int firstButtonIndex = parent.indexOfChild(parent.findViewById(R.id.search_button));
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final int lastButtonIndex = parent.indexOfChild(parent.findViewById(R.id.configure_button));
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final int action = e.getAction();
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final boolean handleKeyEvent = (action != KeyEvent.ACTION_UP);
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boolean wasHandled = false;
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switch (keyCode) {
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case KeyEvent.KEYCODE_DPAD_LEFT:
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if (handleKeyEvent) {
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// Select the previous button, otherwise do nothing (since the button bar is
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// static)
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if (buttonIndex > firstButtonIndex) {
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int newButtonIndex = buttonIndex - 1;
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while (newButtonIndex >= firstButtonIndex) {
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View prev = parent.getChildAt(newButtonIndex);
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if (isVisible(prev) && prev.isFocusable()) {
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prev.requestFocus();
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||||
break;
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}
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--newButtonIndex;
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}
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} else {
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if (pageIndex > 0) {
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// Snap to previous page and clear focus
|
||||
workspace.snapToPage(pageIndex - 1);
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||||
}
|
||||
}
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||||
}
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||||
wasHandled = true;
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||||
break;
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||||
case KeyEvent.KEYCODE_DPAD_RIGHT:
|
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if (handleKeyEvent) {
|
||||
// Select the next button, otherwise do nothing (since the button bar is
|
||||
// static)
|
||||
if (buttonIndex < lastButtonIndex) {
|
||||
int newButtonIndex = buttonIndex + 1;
|
||||
while (newButtonIndex <= lastButtonIndex) {
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||||
View next = parent.getChildAt(newButtonIndex);
|
||||
if (isVisible(next) && next.isFocusable()) {
|
||||
next.requestFocus();
|
||||
break;
|
||||
}
|
||||
++newButtonIndex;
|
||||
}
|
||||
} else {
|
||||
if (pageIndex < (pageCount - 1)) {
|
||||
// Snap to next page and clear focus
|
||||
workspace.snapToPage(pageIndex + 1);
|
||||
}
|
||||
}
|
||||
}
|
||||
wasHandled = true;
|
||||
break;
|
||||
case KeyEvent.KEYCODE_DPAD_UP:
|
||||
// Do nothing
|
||||
wasHandled = true;
|
||||
break;
|
||||
case KeyEvent.KEYCODE_DPAD_DOWN:
|
||||
if (handleKeyEvent) {
|
||||
// Select the first bubble text view in the current page of the workspace
|
||||
final CellLayout layout = (CellLayout) workspace.getChildAt(pageIndex);
|
||||
final CellLayoutChildren children = layout.getChildrenLayout();
|
||||
final View newIcon = getBubbleTextViewInDirection(layout, children, -1, 1);
|
||||
if (newIcon != null) {
|
||||
newIcon.requestFocus();
|
||||
} else {
|
||||
workspace.requestFocus();
|
||||
}
|
||||
}
|
||||
wasHandled = true;
|
||||
break;
|
||||
default: break;
|
||||
}
|
||||
return wasHandled;
|
||||
}
|
||||
|
||||
/**
|
||||
* Private helper method to get the CellLayoutChildren given a CellLayout index.
|
||||
*/
|
||||
private static CellLayoutChildren getCellLayoutChildrenForIndex(ViewGroup container, int i) {
|
||||
ViewGroup parent = (ViewGroup) container.getChildAt(i);
|
||||
return (CellLayoutChildren) parent.getChildAt(0);
|
||||
}
|
||||
|
||||
/**
|
||||
* Private helper method to sort all the CellLayout children in order of their (x,y) spatially
|
||||
* from top left to bottom right.
|
||||
*/
|
||||
private static ArrayList<View> getCellLayoutChildrenSortedSpatially(CellLayout layout,
|
||||
ViewGroup parent) {
|
||||
// First we order each the CellLayout children by their x,y coordinates
|
||||
final int cellCountX = layout.getCountX();
|
||||
final int count = parent.getChildCount();
|
||||
ArrayList<View> views = new ArrayList<View>();
|
||||
for (int j = 0; j < count; ++j) {
|
||||
views.add(parent.getChildAt(j));
|
||||
}
|
||||
Collections.sort(views, new Comparator<View>() {
|
||||
@Override
|
||||
public int compare(View lhs, View rhs) {
|
||||
CellLayout.LayoutParams llp = (CellLayout.LayoutParams) lhs.getLayoutParams();
|
||||
CellLayout.LayoutParams rlp = (CellLayout.LayoutParams) rhs.getLayoutParams();
|
||||
int lvIndex = (llp.cellY * cellCountX) + llp.cellX;
|
||||
int rvIndex = (rlp.cellY * cellCountX) + rlp.cellX;
|
||||
return lvIndex - rvIndex;
|
||||
}
|
||||
});
|
||||
return views;
|
||||
}
|
||||
/**
|
||||
* Private helper method to find the index of the next BubbleTextView in the delta direction.
|
||||
* @param delta either -1 or 1 depending on the direction we want to search
|
||||
*/
|
||||
private static View findIndexOfBubbleTextView(ArrayList<View> views, int i, int delta) {
|
||||
// Then we find the next BubbleTextView offset by delta from i
|
||||
final int count = views.size();
|
||||
int newI = i + delta;
|
||||
while (0 <= newI && newI < count) {
|
||||
View newV = views.get(newI);
|
||||
if (newV instanceof BubbleTextView) {
|
||||
return newV;
|
||||
}
|
||||
newI += delta;
|
||||
}
|
||||
return null;
|
||||
}
|
||||
private static View getBubbleTextViewInDirection(CellLayout layout, ViewGroup parent, int i,
|
||||
int delta) {
|
||||
final ArrayList<View> views = getCellLayoutChildrenSortedSpatially(layout, parent);
|
||||
return findIndexOfBubbleTextView(views, i, delta);
|
||||
}
|
||||
private static View getBubbleTextViewInDirection(CellLayout layout, ViewGroup parent, View v,
|
||||
int delta) {
|
||||
final ArrayList<View> views = getCellLayoutChildrenSortedSpatially(layout, parent);
|
||||
return findIndexOfBubbleTextView(views, views.indexOf(v), delta);
|
||||
}
|
||||
/**
|
||||
* Private helper method to find the next closest BubbleTextView in the delta direction on the
|
||||
* next line.
|
||||
* @param delta either -1 or 1 depending on the line and direction we want to search
|
||||
*/
|
||||
private static View getClosestBubbleTextViewOnLine(CellLayout layout, ViewGroup parent, View v,
|
||||
int lineDelta) {
|
||||
final ArrayList<View> views = getCellLayoutChildrenSortedSpatially(layout, parent);
|
||||
final CellLayout.LayoutParams lp = (CellLayout.LayoutParams) v.getLayoutParams();
|
||||
final int cellCountX = layout.getCountX();
|
||||
final int cellCountY = layout.getCountY();
|
||||
final int row = lp.cellY;
|
||||
final int newRow = row + lineDelta;
|
||||
if (0 <= newRow && newRow < cellCountY) {
|
||||
float closestDistance = Float.MAX_VALUE;
|
||||
int closestIndex = -1;
|
||||
int index = views.indexOf(v);
|
||||
int endIndex = (lineDelta < 0) ? -1 : views.size();
|
||||
while (index != endIndex) {
|
||||
View newV = views.get(index);
|
||||
CellLayout.LayoutParams tmpLp = (CellLayout.LayoutParams) newV.getLayoutParams();
|
||||
boolean satisfiesRow = (lineDelta < 0) ? (tmpLp.cellY < row) : (tmpLp.cellY > row);
|
||||
if (satisfiesRow && newV instanceof BubbleTextView) {
|
||||
float tmpDistance = (float) Math.sqrt(Math.pow(tmpLp.cellX - lp.cellX, 2) +
|
||||
Math.pow(tmpLp.cellY - lp.cellY, 2));
|
||||
if (tmpDistance < closestDistance) {
|
||||
closestIndex = index;
|
||||
closestDistance = tmpDistance;
|
||||
}
|
||||
}
|
||||
if (index <= endIndex) {
|
||||
++index;
|
||||
} else {
|
||||
--index;
|
||||
}
|
||||
}
|
||||
if (closestIndex > -1) {
|
||||
return views.get(closestIndex);
|
||||
}
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Handles key events in a Workspace containing BubbleTextView.
|
||||
*/
|
||||
static boolean handleBubbleTextViewKeyEvent(BubbleTextView v, int keyCode, KeyEvent e) {
|
||||
if (!LauncherApplication.isScreenXLarge()) return false;
|
||||
|
||||
CellLayoutChildren parent = (CellLayoutChildren) v.getParent();
|
||||
final CellLayout layout = (CellLayout) parent.getParent();
|
||||
final Workspace workspace = (Workspace) layout.getParent();
|
||||
final ViewGroup launcher = (ViewGroup) workspace.getParent();
|
||||
final ViewGroup tabs = (ViewGroup) launcher.findViewById(R.id.all_apps_button_cluster);
|
||||
int iconIndex = parent.indexOfChild(v);
|
||||
int iconCount = parent.getChildCount();
|
||||
int pageIndex = workspace.indexOfChild(layout);
|
||||
int pageCount = workspace.getChildCount();
|
||||
|
||||
final int action = e.getAction();
|
||||
final boolean handleKeyEvent = (action != KeyEvent.ACTION_UP);
|
||||
boolean wasHandled = false;
|
||||
switch (keyCode) {
|
||||
case KeyEvent.KEYCODE_DPAD_LEFT:
|
||||
if (handleKeyEvent) {
|
||||
// Select the previous icon or the last icon on the previous page if possible
|
||||
View newIcon = getBubbleTextViewInDirection(layout, parent, v, -1);
|
||||
if (newIcon != null) {
|
||||
newIcon.requestFocus();
|
||||
} else {
|
||||
if (pageIndex > 0) {
|
||||
parent = getCellLayoutChildrenForIndex(workspace, pageIndex - 1);
|
||||
newIcon = getBubbleTextViewInDirection(layout, parent,
|
||||
parent.getChildCount(), -1);
|
||||
if (newIcon != null) {
|
||||
newIcon.requestFocus();
|
||||
} else {
|
||||
// Snap to the previous page
|
||||
workspace.snapToPage(pageIndex - 1);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
wasHandled = true;
|
||||
break;
|
||||
case KeyEvent.KEYCODE_DPAD_RIGHT:
|
||||
if (handleKeyEvent) {
|
||||
// Select the next icon or the first icon on the next page if possible
|
||||
View newIcon = getBubbleTextViewInDirection(layout, parent, v, 1);
|
||||
if (newIcon != null) {
|
||||
newIcon.requestFocus();
|
||||
} else {
|
||||
if (pageIndex < (pageCount - 1)) {
|
||||
parent = getCellLayoutChildrenForIndex(workspace, pageIndex + 1);
|
||||
newIcon = getBubbleTextViewInDirection(layout, parent, -1, 1);
|
||||
if (newIcon != null) {
|
||||
newIcon.requestFocus();
|
||||
} else {
|
||||
// Snap to the next page
|
||||
workspace.snapToPage(pageIndex + 1);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
wasHandled = true;
|
||||
break;
|
||||
case KeyEvent.KEYCODE_DPAD_UP:
|
||||
if (handleKeyEvent) {
|
||||
// Select the closest icon in the previous line, otherwise select the tab bar
|
||||
View newIcon = getClosestBubbleTextViewOnLine(layout, parent, v, -1);
|
||||
if (newIcon != null) {
|
||||
newIcon.requestFocus();
|
||||
wasHandled = true;
|
||||
} else {
|
||||
tabs.requestFocus();
|
||||
}
|
||||
}
|
||||
break;
|
||||
case KeyEvent.KEYCODE_DPAD_DOWN:
|
||||
if (handleKeyEvent) {
|
||||
// Select the closest icon in the next line, otherwise select the tab bar
|
||||
View newIcon = getClosestBubbleTextViewOnLine(layout, parent, v, 1);
|
||||
if (newIcon != null) {
|
||||
newIcon.requestFocus();
|
||||
wasHandled = true;
|
||||
}
|
||||
}
|
||||
break;
|
||||
case KeyEvent.KEYCODE_PAGE_UP:
|
||||
if (handleKeyEvent) {
|
||||
// Select the first icon on the previous page or the first icon on this page
|
||||
// if there is no previous page
|
||||
if (pageIndex > 0) {
|
||||
parent = getCellLayoutChildrenForIndex(workspace, pageIndex - 1);
|
||||
View newIcon = getBubbleTextViewInDirection(layout, parent, -1, 1);
|
||||
if (newIcon != null) {
|
||||
newIcon.requestFocus();
|
||||
} else {
|
||||
// Snap to the previous page
|
||||
workspace.snapToPage(pageIndex - 1);
|
||||
}
|
||||
} else {
|
||||
View newIcon = getBubbleTextViewInDirection(layout, parent, -1, 1);
|
||||
if (newIcon != null) {
|
||||
newIcon.requestFocus();
|
||||
}
|
||||
}
|
||||
}
|
||||
wasHandled = true;
|
||||
break;
|
||||
case KeyEvent.KEYCODE_PAGE_DOWN:
|
||||
if (handleKeyEvent) {
|
||||
// Select the first icon on the next page or the last icon on this page
|
||||
// if there is no previous page
|
||||
if (pageIndex < (pageCount - 1)) {
|
||||
parent = getCellLayoutChildrenForIndex(workspace, pageIndex + 1);
|
||||
View newIcon = getBubbleTextViewInDirection(layout, parent, -1, 1);
|
||||
if (newIcon != null) {
|
||||
newIcon.requestFocus();
|
||||
} else {
|
||||
// Snap to the next page
|
||||
workspace.snapToPage(pageIndex + 1);
|
||||
}
|
||||
} else {
|
||||
View newIcon = getBubbleTextViewInDirection(layout, parent,
|
||||
parent.getChildCount(), -1);
|
||||
if (newIcon != null) {
|
||||
newIcon.requestFocus();
|
||||
}
|
||||
}
|
||||
}
|
||||
wasHandled = true;
|
||||
break;
|
||||
case KeyEvent.KEYCODE_MOVE_HOME:
|
||||
if (handleKeyEvent) {
|
||||
// Select the first icon on this page
|
||||
View newIcon = getBubbleTextViewInDirection(layout, parent, -1, 1);
|
||||
if (newIcon != null) {
|
||||
newIcon.requestFocus();
|
||||
}
|
||||
}
|
||||
wasHandled = true;
|
||||
break;
|
||||
case KeyEvent.KEYCODE_MOVE_END:
|
||||
if (handleKeyEvent) {
|
||||
// Select the last icon on this page
|
||||
View newIcon = getBubbleTextViewInDirection(layout, parent,
|
||||
parent.getChildCount(), -1);
|
||||
if (newIcon != null) {
|
||||
newIcon.requestFocus();
|
||||
}
|
||||
}
|
||||
wasHandled = true;
|
||||
break;
|
||||
default: break;
|
||||
}
|
||||
return wasHandled;
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user