1867 lines
70 KiB
Java
Executable File
1867 lines
70 KiB
Java
Executable File
// Copyright (c) 2013 mogoweb. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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/*
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* Copyright (C) 2006 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.mogoweb.chrome;
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import java.util.Map;
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import org.chromium.content.browser.LoadUrlParams;
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import android.content.Context;
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import android.content.res.Configuration;
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import android.graphics.Bitmap;
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import android.graphics.Canvas;
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import android.graphics.Paint;
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import android.graphics.Rect;
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import android.graphics.drawable.Drawable;
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import android.net.http.SslCertificate;
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import android.os.Build;
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import android.os.Bundle;
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import android.os.Looper;
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import android.os.Message;
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import android.util.AttributeSet;
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import android.util.Log;
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import android.view.KeyEvent;
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import android.view.MotionEvent;
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import android.view.View;
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import android.view.ViewGroup;
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import android.view.accessibility.AccessibilityEvent;
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import android.view.accessibility.AccessibilityNodeInfo;
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import android.view.accessibility.AccessibilityNodeProvider;
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import android.view.inputmethod.EditorInfo;
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import android.view.inputmethod.InputConnection;
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import android.webkit.ValueCallback;
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import android.widget.AbsoluteLayout;
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import com.mogoweb.chrome.impl.DebugFlags;
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import com.mogoweb.chrome.impl.WebViewFactory;
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import com.mogoweb.chrome.impl.WebViewFactoryProvider;
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import com.mogoweb.chrome.impl.WebViewProvider;
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/**
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* <p>A View that displays web pages. This class is the basis upon which you
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* can roll your own web browser or simply display some online content within your Activity.
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* It uses the WebKit rendering engine to display
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* web pages and includes methods to navigate forward and backward
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* through a history, zoom in and out, perform text searches and more.</p>
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* <p>To enable the built-in zoom, set
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* {@link #getSettings() WebSettings}.{@link WebSettings#setBuiltInZoomControls(boolean)}
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* (introduced in API level {@link android.os.Build.VERSION_CODES#CUPCAKE}).
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* <p>Note that, in order for your Activity to access the Internet and load web pages
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* in a WebView, you must add the {@code INTERNET} permissions to your
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* Android Manifest file:</p>
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* <pre><uses-permission android:name="android.permission.INTERNET" /></pre>
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*
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* <p>This must be a child of the <a
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* href="{@docRoot}guide/topics/manifest/manifest-element.html">{@code <manifest>}</a>
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* element.</p>
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*
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* <p>For more information, read
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* <a href="{@docRoot}guide/webapps/webview.html">Building Web Apps in WebView</a>.</p>
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*
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* <h3>Basic usage</h3>
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*
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* <p>By default, a WebView provides no browser-like widgets, does not
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* enable JavaScript and web page errors are ignored. If your goal is only
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* to display some HTML as a part of your UI, this is probably fine;
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* the user won't need to interact with the web page beyond reading
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* it, and the web page won't need to interact with the user. If you
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* actually want a full-blown web browser, then you probably want to
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* invoke the Browser application with a URL Intent rather than show it
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* with a WebView. For example:
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* <pre>
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* Uri uri = Uri.parse("http://www.example.com");
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* Intent intent = new Intent(Intent.ACTION_VIEW, uri);
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* startActivity(intent);
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* </pre>
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* <p>See {@link android.content.Intent} for more information.</p>
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*
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* <p>To provide a WebView in your own Activity, include a {@code <WebView>} in your layout,
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* or set the entire Activity window as a WebView during {@link
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* android.app.Activity#onCreate(Bundle) onCreate()}:</p>
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* <pre class="prettyprint">
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* WebView webview = new WebView(this);
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* setContentView(webview);
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* </pre>
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*
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* <p>Then load the desired web page:</p>
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* <pre>
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* // Simplest usage: note that an exception will NOT be thrown
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* // if there is an error loading this page (see below).
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* webview.loadUrl("http://slashdot.org/");
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*
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* // OR, you can also load from an HTML string:
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* String summary = "<html><body>You scored <b>192</b> points.</body></html>";
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* webview.loadData(summary, "text/html", null);
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* // ... although note that there are restrictions on what this HTML can do.
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* // See the JavaDocs for {@link #loadData(String,String,String) loadData()} and {@link
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* #loadDataWithBaseURL(String,String,String,String,String) loadDataWithBaseURL()} for more info.
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* </pre>
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*
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* <p>A WebView has several customization points where you can add your
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* own behavior. These are:</p>
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*
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* <ul>
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* <li>Creating and setting a {@link android.webkit.WebChromeClient} subclass.
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* This class is called when something that might impact a
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* browser UI happens, for instance, progress updates and
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* JavaScript alerts are sent here (see <a
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* href="{@docRoot}guide/developing/debug-tasks.html#DebuggingWebPages">Debugging Tasks</a>).
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* </li>
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* <li>Creating and setting a {@link android.webkit.WebViewClient} subclass.
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* It will be called when things happen that impact the
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* rendering of the content, eg, errors or form submissions. You
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* can also intercept URL loading here (via {@link
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* android.webkit.WebViewClient#shouldOverrideUrlLoading(WebView,String)
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* shouldOverrideUrlLoading()}).</li>
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* <li>Modifying the {@link android.webkit.WebSettings}, such as
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* enabling JavaScript with {@link android.webkit.WebSettings#setJavaScriptEnabled(boolean)
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* setJavaScriptEnabled()}. </li>
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* <li>Injecting Java objects into the WebView using the
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* {@link android.webkit.WebView#addJavascriptInterface} method. This
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* method allows you to inject Java objects into a page's JavaScript
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* context, so that they can be accessed by JavaScript in the page.</li>
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* </ul>
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*
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* <p>Here's a more complicated example, showing error handling,
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* settings, and progress notification:</p>
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*
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* <pre class="prettyprint">
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* // Let's display the progress in the activity title bar, like the
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* // browser app does.
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* getWindow().requestFeature(Window.FEATURE_PROGRESS);
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*
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* webview.getSettings().setJavaScriptEnabled(true);
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*
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* final Activity activity = this;
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* webview.setWebChromeClient(new WebChromeClient() {
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* public void onProgressChanged(WebView view, int progress) {
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* // Activities and WebViews measure progress with different scales.
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* // The progress meter will automatically disappear when we reach 100%
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* activity.setProgress(progress * 1000);
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* }
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* });
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* webview.setWebViewClient(new WebViewClient() {
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* public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
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* Toast.makeText(activity, "Oh no! " + description, Toast.LENGTH_SHORT).show();
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* }
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* });
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*
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* webview.loadUrl("http://slashdot.org/");
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* </pre>
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*
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* <h3>Cookie and window management</h3>
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*
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* <p>For obvious security reasons, your application has its own
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* cache, cookie store etc.—it does not share the Browser
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* application's data.
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* </p>
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*
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* <p>By default, requests by the HTML to open new windows are
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* ignored. This is true whether they be opened by JavaScript or by
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* the target attribute on a link. You can customize your
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* {@link WebChromeClient} to provide your own behaviour for opening multiple windows,
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* and render them in whatever manner you want.</p>
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*
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* <p>The standard behavior for an Activity is to be destroyed and
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* recreated when the device orientation or any other configuration changes. This will cause
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* the WebView to reload the current page. If you don't want that, you
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* can set your Activity to handle the {@code orientation} and {@code keyboardHidden}
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* changes, and then just leave the WebView alone. It'll automatically
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* re-orient itself as appropriate. Read <a
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* href="{@docRoot}guide/topics/resources/runtime-changes.html">Handling Runtime Changes</a> for
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* more information about how to handle configuration changes during runtime.</p>
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*
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*
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* <h3>Building web pages to support different screen densities</h3>
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*
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* <p>The screen density of a device is based on the screen resolution. A screen with low density
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* has fewer available pixels per inch, where a screen with high density
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* has more — sometimes significantly more — pixels per inch. The density of a
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* screen is important because, other things being equal, a UI element (such as a button) whose
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* height and width are defined in terms of screen pixels will appear larger on the lower density
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* screen and smaller on the higher density screen.
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* For simplicity, Android collapses all actual screen densities into three generalized densities:
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* high, medium, and low.</p>
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* <p>By default, WebView scales a web page so that it is drawn at a size that matches the default
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* appearance on a medium density screen. So, it applies 1.5x scaling on a high density screen
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* (because its pixels are smaller) and 0.75x scaling on a low density screen (because its pixels
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* are bigger).
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* Starting with API level {@link android.os.Build.VERSION_CODES#ECLAIR}, WebView supports DOM, CSS,
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* and meta tag features to help you (as a web developer) target screens with different screen
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* densities.</p>
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* <p>Here's a summary of the features you can use to handle different screen densities:</p>
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* <ul>
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* <li>The {@code window.devicePixelRatio} DOM property. The value of this property specifies the
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* default scaling factor used for the current device. For example, if the value of {@code
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* window.devicePixelRatio} is "1.0", then the device is considered a medium density (mdpi) device
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* and default scaling is not applied to the web page; if the value is "1.5", then the device is
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* considered a high density device (hdpi) and the page content is scaled 1.5x; if the
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* value is "0.75", then the device is considered a low density device (ldpi) and the content is
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* scaled 0.75x. However, if you specify the {@code "target-densitydpi"} meta property
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* (discussed below), then you can stop this default scaling behavior.</li>
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* <li>The {@code -webkit-device-pixel-ratio} CSS media query. Use this to specify the screen
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* densities for which this style sheet is to be used. The corresponding value should be either
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* "0.75", "1", or "1.5", to indicate that the styles are for devices with low density, medium
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* density, or high density screens, respectively. For example:
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* <pre>
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* <link rel="stylesheet" media="screen and (-webkit-device-pixel-ratio:1.5)" href="hdpi.css" /></pre>
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* <p>The {@code hdpi.css} stylesheet is only used for devices with a screen pixel ration of 1.5,
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* which is the high density pixel ratio.</p>
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* </li>
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* <li>The {@code target-densitydpi} property for the {@code viewport} meta tag. You can use
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* this to specify the target density for which the web page is designed, using the following
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* values:
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* <ul>
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* <li>{@code device-dpi} - Use the device's native dpi as the target dpi. Default scaling never
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* occurs.</li>
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* <li>{@code high-dpi} - Use hdpi as the target dpi. Medium and low density screens scale down
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* as appropriate.</li>
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* <li>{@code medium-dpi} - Use mdpi as the target dpi. High density screens scale up and
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* low density screens scale down. This is also the default behavior.</li>
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* <li>{@code low-dpi} - Use ldpi as the target dpi. Medium and high density screens scale up
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* as appropriate.</li>
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* <li><em>{@code <value>}</em> - Specify a dpi value to use as the target dpi (accepted
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* values are 70-400).</li>
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* </ul>
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* <p>Here's an example meta tag to specify the target density:</p>
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* <pre><meta name="viewport" content="target-densitydpi=device-dpi" /></pre></li>
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* </ul>
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* <p>If you want to modify your web page for different densities, by using the {@code
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* -webkit-device-pixel-ratio} CSS media query and/or the {@code
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* window.devicePixelRatio} DOM property, then you should set the {@code target-densitydpi} meta
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* property to {@code device-dpi}. This stops Android from performing scaling in your web page and
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* allows you to make the necessary adjustments for each density via CSS and JavaScript.</p>
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*
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* <h3>HTML5 Video support</h3>
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*
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* <p>In order to support inline HTML5 video in your application, you need to have hardware
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* acceleration turned on, and set a {@link android.webkit.WebChromeClient}. For full screen support,
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* implementations of {@link WebChromeClient#onShowCustomView(View, WebChromeClient.CustomViewCallback)}
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* and {@link WebChromeClient#onHideCustomView()} are required,
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* {@link WebChromeClient#getVideoLoadingProgressView()} is optional.
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* </p>
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*/
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public class WebView extends AbsoluteLayout {
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private static final String LOGTAG = "WebView";
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// Throwing an exception for incorrect thread usage if the
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// build target is JB MR2 or newer. Defaults to false, and is
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// set in the WebView constructor.
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private static Boolean sEnforceThreadChecking = false;
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/**
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* Transportation object for returning WebView across thread boundaries.
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*/
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public class WebViewTransport {
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private WebView mWebview;
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/**
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* Sets the WebView to the transportation object.
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*
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* @param webview the WebView to transport
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*/
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public synchronized void setWebView(WebView webview) {
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mWebview = webview;
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}
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/**
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* Gets the WebView object.
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*
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* @return the transported WebView object
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*/
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public synchronized WebView getWebView() {
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return mWebview;
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}
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}
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/**
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* URI scheme for telephone number.
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*/
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public static final String SCHEME_TEL = "tel:";
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/**
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* URI scheme for email address.
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*/
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public static final String SCHEME_MAILTO = "mailto:";
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/**
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* URI scheme for map address.
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*/
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public static final String SCHEME_GEO = "geo:0,0?q=";
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/**
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* Interface to listen for find results.
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*/
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public interface FindListener {
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/**
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* Notifies the listener about progress made by a find operation.
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*
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* @param activeMatchOrdinal the zero-based ordinal of the currently selected match
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* @param numberOfMatches how many matches have been found
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* @param isDoneCounting whether the find operation has actually completed. The listener
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* may be notified multiple times while the
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* operation is underway, and the numberOfMatches
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* value should not be considered final unless
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* isDoneCounting is true.
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*/
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public void onFindResultReceived(int activeMatchOrdinal, int numberOfMatches,
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boolean isDoneCounting);
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}
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public static class HitTestResult {
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/**
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* Default HitTestResult, where the target is unknown.
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*/
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public static final int UNKNOWN_TYPE = 0;
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/**
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* @deprecated This type is no longer used.
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*/
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@Deprecated
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public static final int ANCHOR_TYPE = 1;
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/**
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* HitTestResult for hitting a phone number.
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*/
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public static final int PHONE_TYPE = 2;
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/**
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* HitTestResult for hitting a map address.
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*/
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public static final int GEO_TYPE = 3;
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/**
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* HitTestResult for hitting an email address.
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*/
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public static final int EMAIL_TYPE = 4;
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/**
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* HitTestResult for hitting an HTML::img tag.
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*/
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public static final int IMAGE_TYPE = 5;
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/**
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* @deprecated This type is no longer used.
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*/
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@Deprecated
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public static final int IMAGE_ANCHOR_TYPE = 6;
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/**
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* HitTestResult for hitting a HTML::a tag with src=http.
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*/
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public static final int SRC_ANCHOR_TYPE = 7;
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/**
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* HitTestResult for hitting a HTML::a tag with src=http + HTML::img.
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*/
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public static final int SRC_IMAGE_ANCHOR_TYPE = 8;
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/**
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* HitTestResult for hitting an edit text area.
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*/
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public static final int EDIT_TEXT_TYPE = 9;
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private int mType;
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private String mExtra;
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/**
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* @hide Only for use by WebViewProvider implementations
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*/
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public HitTestResult() {
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mType = UNKNOWN_TYPE;
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}
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/**
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* @hide Only for use by WebViewProvider implementations
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*/
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public void setType(int type) {
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mType = type;
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}
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/**
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* @hide Only for use by WebViewProvider implementations
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*/
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public void setExtra(String extra) {
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mExtra = extra;
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}
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/**
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* Gets the type of the hit test result. See the XXX_TYPE constants
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* defined in this class.
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*
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* @return the type of the hit test result
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*/
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public int getType() {
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return mType;
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}
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/**
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* Gets additional type-dependant information about the result. See
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* {@link WebView#getHitTestResult()} for details. May either be null
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* or contain extra information about this result.
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*
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* @return additional type-dependant information about the result
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*/
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public String getExtra() {
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return mExtra;
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}
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}
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/**
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* Constructs a new WebView with a Context object.
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*
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* @param context a Context object used to access application assets
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*/
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public WebView(Context context) {
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this(context, null);
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}
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/**
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* Constructs a new WebView with layout parameters.
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*
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* @param context a Context object used to access application assets
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* @param attrs an AttributeSet passed to our parent
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*/
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public WebView(Context context, AttributeSet attrs) {
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this(context, attrs, android.R.attr.webViewStyle);
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}
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/**
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* Constructs a new WebView with layout parameters and a default style.
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*
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* @param context a Context object used to access application assets
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* @param attrs an AttributeSet passed to our parent
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* @param defStyle the default style resource ID
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*/
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public WebView(Context context, AttributeSet attrs, int defStyle) {
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super(context, attrs, defStyle);
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if (context == null) {
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throw new IllegalArgumentException("Invalid context argument");
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}
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sEnforceThreadChecking = context.getApplicationInfo().targetSdkVersion >=
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Build.VERSION_CODES.JELLY_BEAN_MR2;
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checkThread();
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if (DebugFlags.TRACE_API) Log.d(LOGTAG, "WebView<init>");
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ensureProviderCreated();
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mProvider.init(null, false);
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// Post condition of creating a webview is the CookieSyncManager.getInstance() is allowed.
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// CookieSyncManager.setGetInstanceIsAllowed();
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}
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//// Methods from android.webkit.WebView
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/**
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* Specifies whether the horizontal scrollbar has overlay style.
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*
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* @param overlay true if horizontal scrollbar should have overlay style
|
|
*/
|
|
public void setHorizontalScrollbarOverlay(boolean overlay) {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "setHorizontalScrollbarOverlay=" + overlay);
|
|
mProvider.setHorizontalScrollbarOverlay(overlay);
|
|
}
|
|
|
|
/**
|
|
* Specifies whether the vertical scrollbar has overlay style.
|
|
*
|
|
* @param overlay true if vertical scrollbar should have overlay style
|
|
*/
|
|
public void setVerticalScrollbarOverlay(boolean overlay) {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "setVerticalScrollbarOverlay=" + overlay);
|
|
mProvider.setVerticalScrollbarOverlay(overlay);
|
|
}
|
|
|
|
/**
|
|
* Gets whether horizontal scrollbar has overlay style.
|
|
*
|
|
* @return true if horizontal scrollbar has overlay style
|
|
*/
|
|
public boolean overlayHorizontalScrollbar() {
|
|
checkThread();
|
|
return mProvider.overlayHorizontalScrollbar();
|
|
}
|
|
|
|
/**
|
|
* Gets whether vertical scrollbar has overlay style.
|
|
*
|
|
* @return true if vertical scrollbar has overlay style
|
|
*/
|
|
public boolean overlayVerticalScrollbar() {
|
|
checkThread();
|
|
return mProvider.overlayVerticalScrollbar();
|
|
}
|
|
|
|
/**
|
|
* Gets the SSL certificate for the main top-level page or null if there is
|
|
* no certificate (the site is not secure).
|
|
*
|
|
* @return the SSL certificate for the main top-level page
|
|
*/
|
|
public SslCertificate getCertificate() {
|
|
checkThread();
|
|
return mProvider.getCertificate();
|
|
}
|
|
|
|
/**
|
|
* Stores HTTP authentication credentials for a given host and realm. This
|
|
* method is intended to be used with
|
|
* {@link WebViewClient#onReceivedHttpAuthRequest}.
|
|
*
|
|
* @param host the host to which the credentials apply
|
|
* @param realm the realm to which the credentials apply
|
|
* @param username the username
|
|
* @param password the password
|
|
* @see getHttpAuthUsernamePassword
|
|
* @see WebViewDatabase#hasHttpAuthUsernamePassword
|
|
* @see WebViewDatabase#clearHttpAuthUsernamePassword
|
|
*/
|
|
public void setHttpAuthUsernamePassword(String host, String realm,
|
|
String username, String password) {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "setHttpAuthUsernamePassword=" + host);
|
|
mProvider.setHttpAuthUsernamePassword(host, realm, username, password);
|
|
}
|
|
|
|
/**
|
|
* Retrieves HTTP authentication credentials for a given host and realm.
|
|
* This method is intended to be used with
|
|
* {@link WebViewClient#onReceivedHttpAuthRequest}.
|
|
*
|
|
* @param host the host to which the credentials apply
|
|
* @param realm the realm to which the credentials apply
|
|
* @return the credentials as a String array, if found. The first element
|
|
* is the username and the second element is the password. Null if
|
|
* no credentials are found.
|
|
* @see setHttpAuthUsernamePassword
|
|
* @see WebViewDatabase#hasHttpAuthUsernamePassword
|
|
* @see WebViewDatabase#clearHttpAuthUsernamePassword
|
|
*/
|
|
public String[] getHttpAuthUsernamePassword(String host, String realm) {
|
|
checkThread();
|
|
return mProvider.getHttpAuthUsernamePassword(host, realm);
|
|
}
|
|
|
|
/**
|
|
* Destroys the internal state of this WebView. This method should be called
|
|
* after this WebView has been removed from the view system. No other
|
|
* methods may be called on this WebView after destroy.
|
|
*/
|
|
public void destroy() {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "destroy");
|
|
mProvider.destroy();
|
|
}
|
|
|
|
/**
|
|
* Informs WebView of the network state. This is used to set
|
|
* the JavaScript property window.navigator.isOnline and
|
|
* generates the online/offline event as specified in HTML5, sec. 5.7.7
|
|
*
|
|
* @param networkUp a boolean indicating if network is available
|
|
*/
|
|
public void setNetworkAvailable(boolean networkUp) {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "setNetworkAvailable=" + networkUp);
|
|
mProvider.setNetworkAvailable(networkUp);
|
|
}
|
|
|
|
/**
|
|
* Saves the state of this WebView used in
|
|
* {@link android.app.Activity#onSaveInstanceState}. Please note that this
|
|
* method no longer stores the display data for this WebView. The previous
|
|
* behavior could potentially leak files if {@link #restoreState} was never
|
|
* called.
|
|
*
|
|
* @param outState the Bundle to store this WebView's state
|
|
* @return the same copy of the back/forward list used to save the state. If
|
|
* saveState fails, the returned list will be null.
|
|
*/
|
|
public WebBackForwardList saveState(Bundle outState) {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "saveState");
|
|
return mProvider.saveState(outState);
|
|
}
|
|
|
|
/**
|
|
* Restores the state of this WebView from the given Bundle. This method is
|
|
* intended for use in {@link android.app.Activity#onRestoreInstanceState}
|
|
* and should be called to restore the state of this WebView. If
|
|
* it is called after this WebView has had a chance to build state (load
|
|
* pages, create a back/forward list, etc.) there may be undesirable
|
|
* side-effects. Please note that this method no longer restores the
|
|
* display data for this WebView.
|
|
*
|
|
* @param inState the incoming Bundle of state
|
|
* @return the restored back/forward list or null if restoreState failed
|
|
*/
|
|
public WebBackForwardList restoreState(Bundle inState) {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "restoreState");
|
|
return mProvider.restoreState(inState);
|
|
}
|
|
|
|
/**
|
|
* Loads the given URL with the specified additional HTTP headers.
|
|
*
|
|
* @param url the URL of the resource to load
|
|
* @param additionalHttpHeaders the additional headers to be used in the
|
|
* HTTP request for this URL, specified as a map from name to
|
|
* value. Note that if this map contains any of the headers
|
|
* that are set by default by this WebView, such as those
|
|
* controlling caching, accept types or the User-Agent, their
|
|
* values may be overriden by this WebView's defaults.
|
|
*/
|
|
public void loadUrl(String url, Map<String, String> additionalHttpHeaders) {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "loadUrl(extra headers)=" + url);
|
|
mProvider.loadUrl(url, additionalHttpHeaders);
|
|
}
|
|
|
|
/**
|
|
* Loads the given URL.
|
|
*
|
|
* @param url the URL of the resource to load
|
|
*/
|
|
public void loadUrl(String url) {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "loadUrl=" + url);
|
|
mProvider.loadUrl(url);
|
|
}
|
|
|
|
/**
|
|
* Loads the URL with postData using "POST" method into this WebView. If url
|
|
* is not a network URL, it will be loaded with {link
|
|
* {@link #loadUrl(String)} instead.
|
|
*
|
|
* @param url the URL of the resource to load
|
|
* @param postData the data will be passed to "POST" request
|
|
*/
|
|
public void postUrl(String url, byte[] postData) {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "postUrl=" + url);
|
|
mProvider.postUrl(url, postData);
|
|
}
|
|
|
|
/**
|
|
* Loads the given data into this WebView using a 'data' scheme URL.
|
|
* <p>
|
|
* Note that JavaScript's same origin policy means that script running in a
|
|
* page loaded using this method will be unable to access content loaded
|
|
* using any scheme other than 'data', including 'http(s)'. To avoid this
|
|
* restriction, use {@link
|
|
* #loadDataWithBaseURL(String,String,String,String,String)
|
|
* loadDataWithBaseURL()} with an appropriate base URL.
|
|
* <p>
|
|
* The encoding parameter specifies whether the data is base64 or URL
|
|
* encoded. If the data is base64 encoded, the value of the encoding
|
|
* parameter must be 'base64'. For all other values of the parameter,
|
|
* including null, it is assumed that the data uses ASCII encoding for
|
|
* octets inside the range of safe URL characters and use the standard %xx
|
|
* hex encoding of URLs for octets outside that range. For example, '#',
|
|
* '%', '\', '?' should be replaced by %23, %25, %27, %3f respectively.
|
|
* <p>
|
|
* The 'data' scheme URL formed by this method uses the default US-ASCII
|
|
* charset. If you need need to set a different charset, you should form a
|
|
* 'data' scheme URL which explicitly specifies a charset parameter in the
|
|
* mediatype portion of the URL and call {@link #loadUrl(String)} instead.
|
|
* Note that the charset obtained from the mediatype portion of a data URL
|
|
* always overrides that specified in the HTML or XML document itself.
|
|
*
|
|
* @param data a String of data in the given encoding
|
|
* @param mimeType the MIME type of the data, e.g. 'text/html'
|
|
* @param encoding the encoding of the data
|
|
*/
|
|
public void loadData(String data, String mimeType, String encoding) {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "loadData");
|
|
mProvider.loadData(data, mimeType, encoding);
|
|
}
|
|
|
|
/**
|
|
* Loads the given data into this WebView, using baseUrl as the base URL for
|
|
* the content. The base URL is used both to resolve relative URLs and when
|
|
* applying JavaScript's same origin policy. The historyUrl is used for the
|
|
* history entry.
|
|
* <p>
|
|
* Note that content specified in this way can access local device files
|
|
* (via 'file' scheme URLs) only if baseUrl specifies a scheme other than
|
|
* 'http', 'https', 'ftp', 'ftps', 'about' or 'javascript'.
|
|
* <p>
|
|
* If the base URL uses the data scheme, this method is equivalent to
|
|
* calling {@link #loadData(String,String,String) loadData()} and the
|
|
* historyUrl is ignored.
|
|
*
|
|
* @param baseUrl the URL to use as the page's base URL. If null defaults to
|
|
* 'about:blank'.
|
|
* @param data a String of data in the given encoding
|
|
* @param mimeType the MIMEType of the data, e.g. 'text/html'. If null,
|
|
* defaults to 'text/html'.
|
|
* @param encoding the encoding of the data
|
|
* @param historyUrl the URL to use as the history entry. If null defaults
|
|
* to 'about:blank'.
|
|
*/
|
|
public void loadDataWithBaseURL(String baseUrl, String data,
|
|
String mimeType, String encoding, String historyUrl) {
|
|
LoadUrlParams loadUrlParams =
|
|
LoadUrlParams.createLoadDataParamsWithBaseUrl(data, mimeType,
|
|
encoding.equals("base64"), baseUrl, historyUrl);
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "loadDataWithBaseURL=" + baseUrl);
|
|
mProvider.loadDataWithBaseURL(baseUrl, data, mimeType, encoding, historyUrl);
|
|
}
|
|
|
|
/**
|
|
* Asynchronously evaluates JavaScript in the context of the currently displayed page.
|
|
* If non-null, |resultCallback| will be invoked with any result returned from that
|
|
* execution. This method must be called on the UI thread and the callback will
|
|
* be made on the UI thread.
|
|
*
|
|
* @param script the JavaScript to execute.
|
|
* @param resultCallback A callback to be invoked when the script execution
|
|
* completes with the result of the execution (if any).
|
|
* May be null if no notificaion of the result is required.
|
|
*/
|
|
public void evaluateJavascript(String script, ValueCallback<String> resultCallback) {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "evaluateJavascript=" + script);
|
|
mProvider.evaluateJavaScript(script, resultCallback);
|
|
}
|
|
|
|
/**
|
|
* Saves the current view as a web archive.
|
|
*
|
|
* @param filename the filename where the archive should be placed
|
|
*/
|
|
public void saveWebArchive(String filename) {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "saveWebArchive=" + filename);
|
|
mProvider.saveWebArchive(filename);
|
|
}
|
|
|
|
/**
|
|
* Saves the current view as a web archive.
|
|
*
|
|
* @param basename the filename where the archive should be placed
|
|
* @param autoname if false, takes basename to be a file. If true, basename
|
|
* is assumed to be a directory in which a filename will be
|
|
* chosen according to the URL of the current page.
|
|
* @param callback called after the web archive has been saved. The
|
|
* parameter for onReceiveValue will either be the filename
|
|
* under which the file was saved, or null if saving the
|
|
* file failed.
|
|
*/
|
|
public void saveWebArchive(String basename, boolean autoname, ValueCallback<String> callback) {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "saveWebArchive(auto)=" + basename);
|
|
mProvider.saveWebArchive(basename, autoname, callback);
|
|
}
|
|
|
|
/**
|
|
* Stops the current load.
|
|
*/
|
|
public void stopLoading() {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "stopLoading");
|
|
mProvider.stopLoading();
|
|
}
|
|
|
|
/**
|
|
* Reloads the current URL.
|
|
*/
|
|
public void reload() {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "reload");
|
|
mProvider.reload();
|
|
}
|
|
|
|
/**
|
|
* Gets whether this WebView has a back history item.
|
|
*
|
|
* @return true iff this WebView has a back history item
|
|
*/
|
|
public boolean canGoBack() {
|
|
checkThread();
|
|
return mProvider.canGoBack();
|
|
}
|
|
|
|
/**
|
|
* Goes back in the history of this WebView.
|
|
*/
|
|
public void goBack() {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "goBack");
|
|
mProvider.goBack();
|
|
}
|
|
|
|
/**
|
|
* Gets whether this WebView has a forward history item.
|
|
*
|
|
* @return true iff this Webview has a forward history item
|
|
*/
|
|
public boolean canGoForward() {
|
|
checkThread();
|
|
return mProvider.canGoForward();
|
|
}
|
|
|
|
/**
|
|
* Goes forward in the history of this WebView.
|
|
*/
|
|
public void goForward() {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "goForward");
|
|
mProvider.goForward();
|
|
}
|
|
|
|
/**
|
|
* Gets whether the page can go back or forward the given
|
|
* number of steps.
|
|
*
|
|
* @param steps the negative or positive number of steps to move the
|
|
* history
|
|
*/
|
|
public boolean canGoBackOrForward(int steps) {
|
|
checkThread();
|
|
return mProvider.canGoBackOrForward(steps);
|
|
}
|
|
|
|
/**
|
|
* Goes to the history item that is the number of steps away from
|
|
* the current item. Steps is negative if backward and positive
|
|
* if forward.
|
|
*
|
|
* @param steps the number of steps to take back or forward in the back
|
|
* forward list
|
|
*/
|
|
public void goBackOrForward(int steps) {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "goBackOrForwad=" + steps);
|
|
mProvider.goBackOrForward(steps);
|
|
}
|
|
|
|
/**
|
|
* Gets whether private browsing is enabled in this WebView.
|
|
*/
|
|
public boolean isPrivateBrowsingEnabled() {
|
|
checkThread();
|
|
return mProvider.isPrivateBrowsingEnabled();
|
|
}
|
|
|
|
/**
|
|
* Scrolls the contents of this WebView up by half the view size.
|
|
*
|
|
* @param top true to jump to the top of the page
|
|
* @return true if the page was scrolled
|
|
*/
|
|
public boolean pageUp(boolean top) {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "pageUp");
|
|
return mProvider.pageUp(top);
|
|
}
|
|
|
|
/**
|
|
* Scrolls the contents of this WebView down by half the page size.
|
|
*
|
|
* @param bottom true to jump to bottom of page
|
|
* @return true if the page was scrolled
|
|
*/
|
|
public boolean pageDown(boolean bottom) {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "pageDown");
|
|
return mProvider.pageDown(bottom);
|
|
}
|
|
|
|
/**
|
|
* Sets the initial scale for this WebView. 0 means default. If
|
|
* {@link WebSettings#getUseWideViewPort()} is true, it zooms out all the
|
|
* way. Otherwise it starts with 100%. If initial scale is greater than 0,
|
|
* WebView starts with this value as initial scale.
|
|
* Please note that unlike the scale properties in the viewport meta tag,
|
|
* this method doesn't take the screen density into account.
|
|
*
|
|
* @param scaleInPercent the initial scale in percent
|
|
*/
|
|
public void setInitialScale(int scaleInPercent) {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "setInitialScale=" + scaleInPercent);
|
|
mProvider.setInitialScale(scaleInPercent);
|
|
}
|
|
|
|
/**
|
|
* Invokes the graphical zoom picker widget for this WebView. This will
|
|
* result in the zoom widget appearing on the screen to control the zoom
|
|
* level of this WebView.
|
|
*/
|
|
public void invokeZoomPicker() {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "invokeZoomPicker");
|
|
mProvider.invokeZoomPicker();
|
|
}
|
|
|
|
/**
|
|
* Gets a HitTestResult based on the current cursor node. If a HTML::a
|
|
* tag is found and the anchor has a non-JavaScript URL, the HitTestResult
|
|
* type is set to SRC_ANCHOR_TYPE and the URL is set in the "extra" field.
|
|
* If the anchor does not have a URL or if it is a JavaScript URL, the type
|
|
* will be UNKNOWN_TYPE and the URL has to be retrieved through
|
|
* {@link #requestFocusNodeHref} asynchronously. If a HTML::img tag is
|
|
* found, the HitTestResult type is set to IMAGE_TYPE and the URL is set in
|
|
* the "extra" field. A type of
|
|
* SRC_IMAGE_ANCHOR_TYPE indicates an anchor with a URL that has an image as
|
|
* a child node. If a phone number is found, the HitTestResult type is set
|
|
* to PHONE_TYPE and the phone number is set in the "extra" field of
|
|
* HitTestResult. If a map address is found, the HitTestResult type is set
|
|
* to GEO_TYPE and the address is set in the "extra" field of HitTestResult.
|
|
* If an email address is found, the HitTestResult type is set to EMAIL_TYPE
|
|
* and the email is set in the "extra" field of HitTestResult. Otherwise,
|
|
* HitTestResult type is set to UNKNOWN_TYPE.
|
|
*/
|
|
public HitTestResult getHitTestResult() {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "getHitTestResult");
|
|
return mProvider.getHitTestResult();
|
|
}
|
|
|
|
/**
|
|
* Requests the anchor or image element URL at the last tapped point.
|
|
* If hrefMsg is null, this method returns immediately and does not
|
|
* dispatch hrefMsg to its target. If the tapped point hits an image,
|
|
* an anchor, or an image in an anchor, the message associates
|
|
* strings in named keys in its data. The value paired with the key
|
|
* may be an empty string.
|
|
*
|
|
* @param hrefMsg the message to be dispatched with the result of the
|
|
* request. The message data contains three keys. "url"
|
|
* returns the anchor's href attribute. "title" returns the
|
|
* anchor's text. "src" returns the image's src attribute.
|
|
*/
|
|
public void requestFocusNodeHref(Message hrefMsg) {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "requestFocusNodeHref");
|
|
mProvider.requestFocusNodeHref(hrefMsg);
|
|
}
|
|
|
|
/**
|
|
* Requests the URL of the image last touched by the user. msg will be sent
|
|
* to its target with a String representing the URL as its object.
|
|
*
|
|
* @param msg the message to be dispatched with the result of the request
|
|
* as the data member with "url" as key. The result can be null.
|
|
*/
|
|
public void requestImageRef(Message msg) {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "requestImageRef");
|
|
mProvider.requestImageRef(msg);
|
|
}
|
|
|
|
/**
|
|
* Gets the URL for the current page. This is not always the same as the URL
|
|
* passed to WebViewClient.onPageStarted because although the load for
|
|
* that URL has begun, the current page may not have changed.
|
|
*
|
|
* @return the URL for the current page
|
|
*/
|
|
// @ViewDebug.ExportedProperty(category = "webview")
|
|
public String getUrl() {
|
|
checkThread();
|
|
return mProvider.getUrl();
|
|
}
|
|
|
|
/**
|
|
* Gets the original URL for the current page. This is not always the same
|
|
* as the URL passed to WebViewClient.onPageStarted because although the
|
|
* load for that URL has begun, the current page may not have changed.
|
|
* Also, there may have been redirects resulting in a different URL to that
|
|
* originally requested.
|
|
*
|
|
* @return the URL that was originally requested for the current page
|
|
*/
|
|
// @ViewDebug.ExportedProperty(category = "webview")
|
|
public String getOriginalUrl() {
|
|
checkThread();
|
|
return mProvider.getOriginalUrl();
|
|
}
|
|
|
|
/**
|
|
* Gets the title for the current page. This is the title of the current page
|
|
* until WebViewClient.onReceivedTitle is called.
|
|
*
|
|
* @return the title for the current page
|
|
*/
|
|
// @ViewDebug.ExportedProperty(category = "webview")
|
|
public String getTitle() {
|
|
checkThread();
|
|
return mProvider.getTitle();
|
|
}
|
|
|
|
/**
|
|
* Gets the favicon for the current page. This is the favicon of the current
|
|
* page until WebViewClient.onReceivedIcon is called.
|
|
*
|
|
* @return the favicon for the current page
|
|
*/
|
|
public Bitmap getFavicon() {
|
|
checkThread();
|
|
return mProvider.getFavicon();
|
|
}
|
|
|
|
/**
|
|
* Gets the progress for the current page.
|
|
*
|
|
* @return the progress for the current page between 0 and 100
|
|
*/
|
|
public int getProgress() {
|
|
checkThread();
|
|
return mProvider.getProgress();
|
|
}
|
|
|
|
/**
|
|
* Gets the height of the HTML content.
|
|
*
|
|
* @return the height of the HTML content
|
|
*/
|
|
// @ViewDebug.ExportedProperty(category = "webview")
|
|
public int getContentHeight() {
|
|
checkThread();
|
|
return mProvider.getContentHeight();
|
|
}
|
|
|
|
/**
|
|
* Gets the width of the HTML content.
|
|
*
|
|
* @return the width of the HTML content
|
|
* @hide
|
|
*/
|
|
// @ViewDebug.ExportedProperty(category = "webview")
|
|
public int getContentWidth() {
|
|
return mProvider.getContentWidth();
|
|
}
|
|
|
|
/**
|
|
* Pauses all layout, parsing, and JavaScript timers for all WebViews. This
|
|
* is a global requests, not restricted to just this WebView. This can be
|
|
* useful if the application has been paused.
|
|
*/
|
|
public void pauseTimers() {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "pauseTimers");
|
|
mProvider.pauseTimers();
|
|
}
|
|
|
|
/**
|
|
* Resumes all layout, parsing, and JavaScript timers for all WebViews.
|
|
* This will resume dispatching all timers.
|
|
*/
|
|
public void resumeTimers() {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "resumeTimers");
|
|
mProvider.resumeTimers();
|
|
}
|
|
|
|
/**
|
|
* Pauses any extra processing associated with this WebView and its
|
|
* associated DOM, plugins, JavaScript etc. For example, if this WebView is
|
|
* taken offscreen, this could be called to reduce unnecessary CPU or
|
|
* network traffic. When this WebView is again "active", call onResume().
|
|
* Note that this differs from pauseTimers(), which affects all WebViews.
|
|
*/
|
|
public void onPause() {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "onPause");
|
|
mProvider.onPause();
|
|
}
|
|
|
|
/**
|
|
* Resumes a WebView after a previous call to onPause().
|
|
*/
|
|
public void onResume() {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "onResume");
|
|
mProvider.onResume();
|
|
}
|
|
|
|
/**
|
|
* Gets whether this WebView is paused, meaning onPause() was called.
|
|
* Calling onResume() sets the paused state back to false.
|
|
*
|
|
* @hide
|
|
*/
|
|
public boolean isPaused() {
|
|
return mProvider.isPaused();
|
|
}
|
|
|
|
/**
|
|
* Clears the resource cache. Note that the cache is per-application, so
|
|
* this will clear the cache for all WebViews used.
|
|
*
|
|
* @param includeDiskFiles if false, only the RAM cache is cleared
|
|
*/
|
|
public void clearCache(boolean includeDiskFiles) {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "clearCache");
|
|
mProvider.clearCache(includeDiskFiles);
|
|
}
|
|
|
|
/**
|
|
* Removes the autocomplete popup from the currently focused form field, if
|
|
* present. Note this only affects the display of the autocomplete popup,
|
|
* it does not remove any saved form data from this WebView's store. To do
|
|
* that, use {@link WebViewDatabase#clearFormData}.
|
|
*/
|
|
public void clearFormData() {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "clearFormData");
|
|
mProvider.clearFormData();
|
|
}
|
|
|
|
/**
|
|
* Tells this WebView to clear its internal back/forward list.
|
|
*/
|
|
public void clearHistory() {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "clearHistory");
|
|
mProvider.clearHistory();
|
|
}
|
|
|
|
/**
|
|
* Clears the SSL preferences table stored in response to proceeding with
|
|
* SSL certificate errors.
|
|
*/
|
|
public void clearSslPreferences() {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "clearSslPreferences");
|
|
mProvider.clearSslPreferences();
|
|
}
|
|
|
|
/**
|
|
* Gets the WebBackForwardList for this WebView. This contains the
|
|
* back/forward list for use in querying each item in the history stack.
|
|
* This is a copy of the private WebBackForwardList so it contains only a
|
|
* snapshot of the current state. Multiple calls to this method may return
|
|
* different objects. The object returned from this method will not be
|
|
* updated to reflect any new state.
|
|
*/
|
|
public WebBackForwardList copyBackForwardList() {
|
|
checkThread();
|
|
return mProvider.copyBackForwardList();
|
|
}
|
|
|
|
/**
|
|
* Registers the listener to be notified as find-on-page operations
|
|
* progress. This will replace the current listener.
|
|
*
|
|
* @param listener an implementation of {@link FindListener}
|
|
*/
|
|
public void setFindListener(FindListener listener) {
|
|
checkThread();
|
|
setupFindListenerIfNeeded();
|
|
mFindListener.mUserFindListener = listener;
|
|
}
|
|
|
|
/**
|
|
* Highlights and scrolls to the next match found by
|
|
* {@link #findAllAsync}, wrapping around page boundaries as necessary.
|
|
* Notifies any registered {@link FindListener}. If {@link #findAllAsync(String)}
|
|
* has not been called yet, or if {@link #clearMatches} has been called since the
|
|
* last find operation, this function does nothing.
|
|
*
|
|
* @param forward the direction to search
|
|
* @see #setFindListener
|
|
*/
|
|
public void findNext(boolean forward) {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "findNext");
|
|
mProvider.findNext(forward);
|
|
}
|
|
|
|
/**
|
|
* Finds all instances of find on the page and highlights them,
|
|
* asynchronously. Notifies any registered {@link FindListener}.
|
|
* Successive calls to this will cancel any pending searches.
|
|
*
|
|
* @param find the string to find.
|
|
* @see #setFindListener
|
|
*/
|
|
public void findAllAsync(String find) {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "findAllAsync");
|
|
mProvider.findAllAsync(find);
|
|
}
|
|
|
|
/**
|
|
* Gets the first substring consisting of the address of a physical
|
|
* location. Currently, only addresses in the United States are detected,
|
|
* and consist of:
|
|
* <ul>
|
|
* <li>a house number</li>
|
|
* <li>a street name</li>
|
|
* <li>a street type (Road, Circle, etc), either spelled out or
|
|
* abbreviated</li>
|
|
* <li>a city name</li>
|
|
* <li>a state or territory, either spelled out or two-letter abbr</li>
|
|
* <li>an optional 5 digit or 9 digit zip code</li>
|
|
* </ul>
|
|
* All names must be correctly capitalized, and the zip code, if present,
|
|
* must be valid for the state. The street type must be a standard USPS
|
|
* spelling or abbreviation. The state or territory must also be spelled
|
|
* or abbreviated using USPS standards. The house number may not exceed
|
|
* five digits.
|
|
*
|
|
* @param addr the string to search for addresses
|
|
* @return the address, or if no address is found, null
|
|
*/
|
|
public static String findAddress(String addr) {
|
|
return getFactory().getStatics().findAddress(addr);
|
|
}
|
|
|
|
/**
|
|
* Clears the highlighting surrounding text matches created by
|
|
* {@link #findAllAsync}.
|
|
*/
|
|
public void clearMatches() {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "clearMatches");
|
|
mProvider.clearMatches();
|
|
}
|
|
|
|
/**
|
|
* Queries the document to see if it contains any image references. The
|
|
* message object will be dispatched with arg1 being set to 1 if images
|
|
* were found and 0 if the document does not reference any images.
|
|
*
|
|
* @param response the message that will be dispatched with the result
|
|
*/
|
|
public void documentHasImages(Message response) {
|
|
checkThread();
|
|
mProvider.documentHasImages(response);
|
|
}
|
|
|
|
/**
|
|
* Sets the WebViewClient that will receive various notifications and
|
|
* requests. This will replace the current handler.
|
|
*
|
|
* @param client an implementation of WebViewClient
|
|
*/
|
|
public void setWebViewClient(WebViewClient client) {
|
|
checkThread();
|
|
mProvider.setWebViewClient(client);
|
|
}
|
|
|
|
/**
|
|
* Registers the interface to be used when content can not be handled by
|
|
* the rendering engine, and should be downloaded instead. This will replace
|
|
* the current handler.
|
|
*
|
|
* @param listener an implementation of DownloadListener
|
|
*/
|
|
public void setDownloadListener(DownloadListener listener) {
|
|
checkThread();
|
|
mProvider.setDownloadListener(listener);
|
|
}
|
|
|
|
/**
|
|
* Sets the chrome handler. This is an implementation of WebChromeClient for
|
|
* use in handling JavaScript dialogs, favicons, titles, and the progress.
|
|
* This will replace the current handler.
|
|
*
|
|
* @param client an implementation of WebChromeClient
|
|
*/
|
|
public void setWebChromeClient(WebChromeClient client) {
|
|
checkThread();
|
|
mProvider.setWebChromeClient(client);
|
|
}
|
|
|
|
/**
|
|
* Injects the supplied Java object into this WebView. The object is
|
|
* injected into the JavaScript context of the main frame, using the
|
|
* supplied name. This allows the Java object's methods to be
|
|
* accessed from JavaScript. For applications targeted to API
|
|
* level {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1}
|
|
* and above, only public methods that are annotated with
|
|
* {@link android.webkit.JavascriptInterface} can be accessed from JavaScript.
|
|
* For applications targeted to API level {@link android.os.Build.VERSION_CODES#JELLY_BEAN} or below,
|
|
* all public methods (including the inherited ones) can be accessed, see the
|
|
* important security note below for implications.
|
|
* <p> Note that injected objects will not
|
|
* appear in JavaScript until the page is next (re)loaded. For example:
|
|
* <pre>
|
|
* class JsObject {
|
|
* {@literal @}JavascriptInterface
|
|
* public String toString() { return "injectedObject"; }
|
|
* }
|
|
* webView.addJavascriptInterface(new JsObject(), "injectedObject");
|
|
* webView.loadData("<!DOCTYPE html><title></title>", "text/html", null);
|
|
* webView.loadUrl("javascript:alert(injectedObject.toString())");</pre>
|
|
* <p>
|
|
* <strong>IMPORTANT:</strong>
|
|
* <ul>
|
|
* <li> This method can be used to allow JavaScript to control the host
|
|
* application. This is a powerful feature, but also presents a security
|
|
* risk for applications targeted to API level
|
|
* {@link android.os.Build.VERSION_CODES#JELLY_BEAN} or below, because
|
|
* JavaScript could use reflection to access an
|
|
* injected object's public fields. Use of this method in a WebView
|
|
* containing untrusted content could allow an attacker to manipulate the
|
|
* host application in unintended ways, executing Java code with the
|
|
* permissions of the host application. Use extreme care when using this
|
|
* method in a WebView which could contain untrusted content.</li>
|
|
* <li> JavaScript interacts with Java object on a private, background
|
|
* thread of this WebView. Care is therefore required to maintain thread
|
|
* safety.</li>
|
|
* <li> The Java object's fields are not accessible.</li>
|
|
* </ul>
|
|
*
|
|
* @param object the Java object to inject into this WebView's JavaScript
|
|
* context. Null values are ignored.
|
|
* @param name the name used to expose the object in JavaScript
|
|
*/
|
|
public void addJavascriptInterface(Object object, String name) {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "addJavascriptInterface=" + name);
|
|
mProvider.addJavascriptInterface(object, name);
|
|
}
|
|
|
|
/**
|
|
* Removes a previously injected Java object from this WebView. Note that
|
|
* the removal will not be reflected in JavaScript until the page is next
|
|
* (re)loaded. See {@link #addJavascriptInterface}.
|
|
*
|
|
* @param name the name used to expose the object in JavaScript
|
|
*/
|
|
public void removeJavascriptInterface(String name) {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "removeJavascriptInterface=" + name);
|
|
mProvider.removeJavascriptInterface(name);
|
|
}
|
|
|
|
/**
|
|
* Gets the WebSettings object used to control the settings for this
|
|
* WebView.
|
|
*
|
|
* @return a WebSettings object that can be used to control this WebView's
|
|
* settings
|
|
*/
|
|
public WebSettings getSettings() {
|
|
checkThread();
|
|
return mProvider.getSettings();
|
|
}
|
|
|
|
/**
|
|
* Enables debugging of web contents (HTML / CSS / JavaScript)
|
|
* loaded into any WebViews of this application. This flag can be enabled
|
|
* in order to facilitate debugging of web layouts and JavaScript
|
|
* code running inside WebViews. Please refer to WebView documentation
|
|
* for the debugging guide.
|
|
*
|
|
* The default is false.
|
|
*
|
|
* @param enabled whether to enable web contents debugging
|
|
*/
|
|
public static void setWebContentsDebuggingEnabled(boolean enabled) {
|
|
getFactory().getStatics().setWebContentsDebuggingEnabled(enabled);
|
|
}
|
|
|
|
public void flingScroll(int vx, int vy) {
|
|
checkThread();
|
|
if (DebugFlags.TRACE_API) Log.d(LOGTAG, "flingScroll");
|
|
mProvider.flingScroll(vx, vy);
|
|
}
|
|
|
|
/**
|
|
* Performs zoom in in this WebView.
|
|
*
|
|
* @return true if zoom in succeeds, false if no zoom changes
|
|
*/
|
|
public boolean zoomIn() {
|
|
checkThread();
|
|
return mProvider.zoomIn();
|
|
}
|
|
|
|
/**
|
|
* Performs zoom out in this WebView.
|
|
*
|
|
* @return true if zoom out succeeds, false if no zoom changes
|
|
*/
|
|
public boolean zoomOut() {
|
|
checkThread();
|
|
return mProvider.zoomOut();
|
|
}
|
|
|
|
//-------------------------------------------------------------------------
|
|
// Interface for WebView providers
|
|
//-------------------------------------------------------------------------
|
|
|
|
/**
|
|
* Gets the WebViewProvider. Used by providers to obtain the underlying
|
|
* implementation, e.g. when the appliction responds to
|
|
* WebViewClient.onCreateWindow() request.
|
|
*
|
|
* @hide WebViewProvider is not public API.
|
|
*/
|
|
public WebViewProvider getWebViewProvider() {
|
|
return mProvider;
|
|
}
|
|
|
|
/**
|
|
* Callback interface, allows the provider implementation to access non-public methods
|
|
* and fields, and make super-class calls in this WebView instance.
|
|
* @hide Only for use by WebViewProvider implementations
|
|
*/
|
|
public class PrivateAccess {
|
|
// ---- Access to super-class methods ----
|
|
public int super_getScrollBarStyle() {
|
|
return WebView.super.getScrollBarStyle();
|
|
}
|
|
|
|
public void super_scrollTo(int scrollX, int scrollY) {
|
|
WebView.super.scrollTo(scrollX, scrollY);
|
|
}
|
|
|
|
public void super_computeScroll() {
|
|
WebView.super.computeScroll();
|
|
}
|
|
|
|
public boolean super_onHoverEvent(MotionEvent event) {
|
|
return WebView.super.onHoverEvent(event);
|
|
}
|
|
|
|
public boolean super_performAccessibilityAction(int action, Bundle arguments) {
|
|
return WebView.super.performAccessibilityAction(action, arguments);
|
|
}
|
|
|
|
public boolean super_performLongClick() {
|
|
return WebView.super.performLongClick();
|
|
}
|
|
|
|
public boolean super_setFrame(int left, int top, int right, int bottom) {
|
|
Log.w(LOGTAG, "super_setFrame(" + left + "," + top + "," + right + "," + bottom + ") not imlemented");
|
|
return true;
|
|
// return WebView.super.setFrame(left, top, right, bottom);
|
|
}
|
|
|
|
public boolean super_dispatchKeyEvent(KeyEvent event) {
|
|
return WebView.super.dispatchKeyEvent(event);
|
|
}
|
|
|
|
public boolean super_onGenericMotionEvent(MotionEvent event) {
|
|
return WebView.super.onGenericMotionEvent(event);
|
|
}
|
|
|
|
public boolean super_requestFocus(int direction, Rect previouslyFocusedRect) {
|
|
return WebView.super.requestFocus(direction, previouslyFocusedRect);
|
|
}
|
|
|
|
public void super_setLayoutParams(ViewGroup.LayoutParams params) {
|
|
WebView.super.setLayoutParams(params);
|
|
}
|
|
|
|
// ---- Access to non-public methods ----
|
|
public void overScrollBy(int deltaX, int deltaY,
|
|
int scrollX, int scrollY,
|
|
int scrollRangeX, int scrollRangeY,
|
|
int maxOverScrollX, int maxOverScrollY,
|
|
boolean isTouchEvent) {
|
|
WebView.this.overScrollBy(deltaX, deltaY, scrollX, scrollY, scrollRangeX, scrollRangeY,
|
|
maxOverScrollX, maxOverScrollY, isTouchEvent);
|
|
}
|
|
|
|
public void awakenScrollBars(int duration) {
|
|
WebView.this.awakenScrollBars(duration);
|
|
}
|
|
|
|
public void awakenScrollBars(int duration, boolean invalidate) {
|
|
WebView.this.awakenScrollBars(duration, invalidate);
|
|
}
|
|
|
|
public float getVerticalScrollFactor() {
|
|
Log.w(LOGTAG, "getVerticalScrollFactory not implemented");
|
|
return 1.0f;
|
|
// return WebView.this.getVerticalScrollFactor();
|
|
}
|
|
|
|
public float getHorizontalScrollFactor() {
|
|
Log.w(LOGTAG, "getHorizontalScrollFactory not implemented");
|
|
return 1.0f;
|
|
// return WebView.this.getHorizontalScrollFactor();
|
|
}
|
|
|
|
public void setMeasuredDimension(int measuredWidth, int measuredHeight) {
|
|
WebView.this.setMeasuredDimension(measuredWidth, measuredHeight);
|
|
}
|
|
|
|
public void onScrollChanged(int l, int t, int oldl, int oldt) {
|
|
WebView.this.onScrollChanged(l, t, oldl, oldt);
|
|
}
|
|
|
|
public int getHorizontalScrollbarHeight() {
|
|
return WebView.this.getHorizontalScrollbarHeight();
|
|
}
|
|
|
|
public void super_onDrawVerticalScrollBar(Canvas canvas, Drawable scrollBar,
|
|
int l, int t, int r, int b) {
|
|
Log.w(LOGTAG, "super_onDrawVerticalScrollBar not implemented");
|
|
// WebView.super.onDrawVerticalScrollBar(canvas, scrollBar, l, t, r, b);
|
|
}
|
|
|
|
// ---- Access to (non-public) fields ----
|
|
/** Raw setter for the scroll X value, without invoking onScrollChanged handlers etc. */
|
|
public void setScrollXRaw(int scrollX) {
|
|
WebView.this.setScrollX(scrollX);
|
|
}
|
|
|
|
/** Raw setter for the scroll Y value, without invoking onScrollChanged handlers etc. */
|
|
public void setScrollYRaw(int scrollY) {
|
|
WebView.this.setScrollY(scrollY);
|
|
}
|
|
|
|
}
|
|
|
|
//-------------------------------------------------------------------------
|
|
// Package-private internal stuff
|
|
//-------------------------------------------------------------------------
|
|
|
|
// Only used by android.webkit.FindActionModeCallback.
|
|
void setFindDialogFindListener(FindListener listener) {
|
|
checkThread();
|
|
setupFindListenerIfNeeded();
|
|
mFindListener.mFindDialogFindListener = listener;
|
|
}
|
|
|
|
// Only used by android.webkit.FindActionModeCallback.
|
|
void notifyFindDialogDismissed() {
|
|
checkThread();
|
|
mProvider.notifyFindDialogDismissed();
|
|
}
|
|
|
|
//-------------------------------------------------------------------------
|
|
// Private internal stuff
|
|
//-------------------------------------------------------------------------
|
|
|
|
private WebViewProvider mProvider;
|
|
|
|
/**
|
|
* In addition to the FindListener that the user may set via the WebView.setFindListener
|
|
* API, FindActionModeCallback will register it's own FindListener. We keep them separate
|
|
* via this class so that that the two FindListeners can potentially exist at once.
|
|
*/
|
|
private class FindListenerDistributor implements FindListener {
|
|
private FindListener mFindDialogFindListener;
|
|
private FindListener mUserFindListener;
|
|
|
|
@Override
|
|
public void onFindResultReceived(int activeMatchOrdinal, int numberOfMatches,
|
|
boolean isDoneCounting) {
|
|
if (mFindDialogFindListener != null) {
|
|
mFindDialogFindListener.onFindResultReceived(activeMatchOrdinal, numberOfMatches,
|
|
isDoneCounting);
|
|
}
|
|
|
|
if (mUserFindListener != null) {
|
|
mUserFindListener.onFindResultReceived(activeMatchOrdinal, numberOfMatches,
|
|
isDoneCounting);
|
|
}
|
|
}
|
|
}
|
|
private FindListenerDistributor mFindListener;
|
|
|
|
private void setupFindListenerIfNeeded() {
|
|
if (mFindListener == null) {
|
|
mFindListener = new FindListenerDistributor();
|
|
mProvider.setFindListener(mFindListener);
|
|
}
|
|
}
|
|
|
|
private void ensureProviderCreated() {
|
|
checkThread();
|
|
if (mProvider == null) {
|
|
// As this can get called during the base class constructor chain, pass the minimum
|
|
// number of dependencies here; the rest are deferred to init().
|
|
mProvider = getFactory().createWebView(this, new PrivateAccess());
|
|
}
|
|
}
|
|
|
|
private static synchronized WebViewFactoryProvider getFactory() {
|
|
return WebViewFactory.getProvider();
|
|
}
|
|
|
|
private final Looper mWebViewThread = Looper.myLooper();
|
|
|
|
private void checkThread() {
|
|
// Ignore mWebViewThread == null because this can be called during in the super class
|
|
// constructor, before this class's own constructor has even started.
|
|
if (mWebViewThread != null && Looper.myLooper() != mWebViewThread) {
|
|
Throwable throwable = new Throwable(
|
|
"A WebView method was called on thread '" +
|
|
Thread.currentThread().getName() + "'. " +
|
|
"All WebView methods must be called on the same thread. " +
|
|
"(Expected Looper " + mWebViewThread + " called on " + Looper.myLooper() +
|
|
", FYI main Looper is " + Looper.getMainLooper() + ")");
|
|
Log.w(LOGTAG, Log.getStackTraceString(throwable));
|
|
|
|
if (sEnforceThreadChecking) {
|
|
throw new RuntimeException(throwable);
|
|
}
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------------
|
|
// Override View methods
|
|
//-------------------------------------------------------------------------
|
|
|
|
// TODO: Add a test that enumerates all methods in ViewDelegte & ScrollDelegate, and ensures
|
|
// there's a corresponding override (or better, caller) for each of them in here.
|
|
|
|
@Override
|
|
protected void onAttachedToWindow() {
|
|
super.onAttachedToWindow();
|
|
mProvider.getViewDelegate().onAttachedToWindow();
|
|
}
|
|
|
|
@Override
|
|
protected void onDetachedFromWindow() {
|
|
mProvider.getViewDelegate().onDetachedFromWindow();
|
|
super.onDetachedFromWindow();
|
|
}
|
|
|
|
@Override
|
|
public void setLayoutParams(ViewGroup.LayoutParams params) {
|
|
mProvider.getViewDelegate().setLayoutParams(params);
|
|
}
|
|
|
|
@Override
|
|
public void setOverScrollMode(int mode) {
|
|
super.setOverScrollMode(mode);
|
|
// This method may be called in the constructor chain, before the WebView provider is
|
|
// created.
|
|
ensureProviderCreated();
|
|
mProvider.getViewDelegate().setOverScrollMode(mode);
|
|
}
|
|
|
|
@Override
|
|
public void setScrollBarStyle(int style) {
|
|
mProvider.getViewDelegate().setScrollBarStyle(style);
|
|
super.setScrollBarStyle(style);
|
|
}
|
|
|
|
@Override
|
|
protected int computeHorizontalScrollRange() {
|
|
return mProvider.getScrollDelegate().computeHorizontalScrollRange();
|
|
}
|
|
|
|
@Override
|
|
protected int computeHorizontalScrollOffset() {
|
|
return mProvider.getScrollDelegate().computeHorizontalScrollOffset();
|
|
}
|
|
|
|
@Override
|
|
protected int computeVerticalScrollRange() {
|
|
return mProvider.getScrollDelegate().computeVerticalScrollRange();
|
|
}
|
|
|
|
@Override
|
|
protected int computeVerticalScrollOffset() {
|
|
return mProvider.getScrollDelegate().computeVerticalScrollOffset();
|
|
}
|
|
|
|
@Override
|
|
protected int computeVerticalScrollExtent() {
|
|
return mProvider.getScrollDelegate().computeVerticalScrollExtent();
|
|
}
|
|
|
|
@Override
|
|
public void computeScroll() {
|
|
mProvider.getScrollDelegate().computeScroll();
|
|
}
|
|
|
|
@Override
|
|
public boolean onHoverEvent(MotionEvent event) {
|
|
return mProvider.getViewDelegate().onHoverEvent(event);
|
|
}
|
|
|
|
@Override
|
|
public boolean onTouchEvent(MotionEvent event) {
|
|
return mProvider.getViewDelegate().onTouchEvent(event);
|
|
}
|
|
|
|
@Override
|
|
public boolean onGenericMotionEvent(MotionEvent event) {
|
|
return mProvider.getViewDelegate().onGenericMotionEvent(event);
|
|
}
|
|
|
|
@Override
|
|
public boolean onTrackballEvent(MotionEvent event) {
|
|
return mProvider.getViewDelegate().onTrackballEvent(event);
|
|
}
|
|
|
|
@Override
|
|
public boolean onKeyDown(int keyCode, KeyEvent event) {
|
|
return mProvider.getViewDelegate().onKeyDown(keyCode, event);
|
|
}
|
|
|
|
@Override
|
|
public boolean onKeyUp(int keyCode, KeyEvent event) {
|
|
return mProvider.getViewDelegate().onKeyUp(keyCode, event);
|
|
}
|
|
|
|
@Override
|
|
public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) {
|
|
return mProvider.getViewDelegate().onKeyMultiple(keyCode, repeatCount, event);
|
|
}
|
|
|
|
/*
|
|
TODO: These are not currently implemented in WebViewClassic, but it seems inconsistent not
|
|
to be delegating them too.
|
|
|
|
@Override
|
|
public boolean onKeyPreIme(int keyCode, KeyEvent event) {
|
|
return mProvider.getViewDelegate().onKeyPreIme(keyCode, event);
|
|
}
|
|
@Override
|
|
public boolean onKeyLongPress(int keyCode, KeyEvent event) {
|
|
return mProvider.getViewDelegate().onKeyLongPress(keyCode, event);
|
|
}
|
|
@Override
|
|
public boolean onKeyShortcut(int keyCode, KeyEvent event) {
|
|
return mProvider.getViewDelegate().onKeyShortcut(keyCode, event);
|
|
}
|
|
*/
|
|
|
|
@Override
|
|
public AccessibilityNodeProvider getAccessibilityNodeProvider() {
|
|
AccessibilityNodeProvider provider =
|
|
mProvider.getViewDelegate().getAccessibilityNodeProvider();
|
|
return provider == null ? super.getAccessibilityNodeProvider() : provider;
|
|
}
|
|
|
|
@Override
|
|
public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) {
|
|
super.onInitializeAccessibilityNodeInfo(info);
|
|
info.setClassName(WebView.class.getName());
|
|
mProvider.getViewDelegate().onInitializeAccessibilityNodeInfo(info);
|
|
}
|
|
|
|
@Override
|
|
public void onInitializeAccessibilityEvent(AccessibilityEvent event) {
|
|
super.onInitializeAccessibilityEvent(event);
|
|
event.setClassName(WebView.class.getName());
|
|
mProvider.getViewDelegate().onInitializeAccessibilityEvent(event);
|
|
}
|
|
|
|
@Override
|
|
public boolean performAccessibilityAction(int action, Bundle arguments) {
|
|
return mProvider.getViewDelegate().performAccessibilityAction(action, arguments);
|
|
}
|
|
|
|
@Override
|
|
protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) {
|
|
mProvider.getViewDelegate().onOverScrolled(scrollX, scrollY, clampedX, clampedY);
|
|
}
|
|
|
|
@Override
|
|
protected void onWindowVisibilityChanged(int visibility) {
|
|
super.onWindowVisibilityChanged(visibility);
|
|
mProvider.getViewDelegate().onWindowVisibilityChanged(visibility);
|
|
}
|
|
|
|
@Override
|
|
protected void onDraw(Canvas canvas) {
|
|
mProvider.getViewDelegate().onDraw(canvas);
|
|
}
|
|
|
|
@Override
|
|
public boolean performLongClick() {
|
|
return mProvider.getViewDelegate().performLongClick();
|
|
}
|
|
|
|
@Override
|
|
protected void onConfigurationChanged(Configuration newConfig) {
|
|
mProvider.getViewDelegate().onConfigurationChanged(newConfig);
|
|
}
|
|
|
|
@Override
|
|
public InputConnection onCreateInputConnection(EditorInfo outAttrs) {
|
|
return mProvider.getViewDelegate().onCreateInputConnection(outAttrs);
|
|
}
|
|
|
|
@Override
|
|
protected void onVisibilityChanged(View changedView, int visibility) {
|
|
super.onVisibilityChanged(changedView, visibility);
|
|
// This method may be called in the constructor chain, before the WebView provider is
|
|
// created.
|
|
ensureProviderCreated();
|
|
mProvider.getViewDelegate().onVisibilityChanged(changedView, visibility);
|
|
}
|
|
|
|
@Override
|
|
public void onWindowFocusChanged(boolean hasWindowFocus) {
|
|
mProvider.getViewDelegate().onWindowFocusChanged(hasWindowFocus);
|
|
super.onWindowFocusChanged(hasWindowFocus);
|
|
}
|
|
|
|
@Override
|
|
protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) {
|
|
mProvider.getViewDelegate().onFocusChanged(focused, direction, previouslyFocusedRect);
|
|
super.onFocusChanged(focused, direction, previouslyFocusedRect);
|
|
}
|
|
|
|
@Override
|
|
protected void onSizeChanged(int w, int h, int ow, int oh) {
|
|
super.onSizeChanged(w, h, ow, oh);
|
|
mProvider.getViewDelegate().onSizeChanged(w, h, ow, oh);
|
|
}
|
|
|
|
@Override
|
|
protected void onScrollChanged(int l, int t, int oldl, int oldt) {
|
|
super.onScrollChanged(l, t, oldl, oldt);
|
|
mProvider.getViewDelegate().onScrollChanged(l, t, oldl, oldt);
|
|
}
|
|
|
|
@Override
|
|
public boolean dispatchKeyEvent(KeyEvent event) {
|
|
return mProvider.getViewDelegate().dispatchKeyEvent(event);
|
|
}
|
|
|
|
@Override
|
|
public boolean requestFocus(int direction, Rect previouslyFocusedRect) {
|
|
return mProvider.getViewDelegate().requestFocus(direction, previouslyFocusedRect);
|
|
}
|
|
|
|
@Override
|
|
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
|
|
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
|
|
mProvider.getViewDelegate().onMeasure(widthMeasureSpec, heightMeasureSpec);
|
|
}
|
|
|
|
@Override
|
|
public boolean requestChildRectangleOnScreen(View child, Rect rect, boolean immediate) {
|
|
return mProvider.getViewDelegate().requestChildRectangleOnScreen(child, rect, immediate);
|
|
}
|
|
|
|
@Override
|
|
public void setBackgroundColor(int color) {
|
|
mProvider.getViewDelegate().setBackgroundColor(color);
|
|
}
|
|
|
|
@Override
|
|
public void setLayerType(int layerType, Paint paint) {
|
|
super.setLayerType(layerType, paint);
|
|
mProvider.getViewDelegate().setLayerType(layerType, paint);
|
|
}
|
|
|
|
@Override
|
|
protected void dispatchDraw(Canvas canvas) {
|
|
mProvider.getViewDelegate().preDispatchDraw(canvas);
|
|
super.dispatchDraw(canvas);
|
|
}
|
|
}
|