diff options
Diffstat (limited to 'android/webkit/WebView.java')
-rw-r--r-- | android/webkit/WebView.java | 2897 |
1 files changed, 50 insertions, 2847 deletions
diff --git a/android/webkit/WebView.java b/android/webkit/WebView.java index 6f992548..202f2046 100644 --- a/android/webkit/WebView.java +++ b/android/webkit/WebView.java @@ -1,5 +1,5 @@ /* - * Copyright (C) 2006 The Android Open Source Project + * Copyright (C) 2008 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -16,3020 +16,223 @@ package android.webkit; -import android.annotation.IntDef; -import android.annotation.NonNull; -import android.annotation.Nullable; -import android.annotation.SystemApi; -import android.annotation.Widget; +import com.android.layoutlib.bridge.MockView; + import android.content.Context; -import android.content.Intent; -import android.content.pm.PackageInfo; -import android.content.res.Configuration; import android.graphics.Bitmap; -import android.graphics.Canvas; -import android.graphics.Paint; import android.graphics.Picture; -import android.graphics.Rect; -import android.graphics.drawable.Drawable; -import android.net.Uri; -import android.net.http.SslCertificate; -import android.os.Build; import android.os.Bundle; -import android.os.Handler; -import android.os.Looper; import android.os.Message; -import android.os.RemoteException; -import android.os.StrictMode; -import android.print.PrintDocumentAdapter; -import android.security.KeyChain; import android.util.AttributeSet; -import android.util.Log; -import android.util.SparseArray; -import android.view.DragEvent; -import android.view.KeyEvent; -import android.view.MotionEvent; import android.view.View; -import android.view.ViewDebug; -import android.view.ViewGroup; -import android.view.ViewHierarchyEncoder; -import android.view.ViewStructure; -import android.view.ViewTreeObserver; -import android.view.accessibility.AccessibilityEvent; -import android.view.accessibility.AccessibilityNodeInfo; -import android.view.accessibility.AccessibilityNodeProvider; -import android.view.autofill.AutofillValue; -import android.view.inputmethod.EditorInfo; -import android.view.inputmethod.InputConnection; -import android.view.textclassifier.TextClassifier; -import android.widget.AbsoluteLayout; - -import java.io.BufferedWriter; -import java.io.File; -import java.lang.annotation.Retention; -import java.lang.annotation.RetentionPolicy; -import java.util.List; -import java.util.Map; /** - * <p>A View that displays web pages. This class is the basis upon which you - * can roll your own web browser or simply display some online content within your Activity. - * It uses the WebKit rendering engine to display - * web pages and includes methods to navigate forward and backward - * through a history, zoom in and out, perform text searches and more. - * - * <p>Note that, in order for your Activity to access the Internet and load web pages - * in a WebView, you must add the {@code INTERNET} permissions to your - * Android Manifest file: - * - * <pre> - * {@code <uses-permission android:name="android.permission.INTERNET" />} - * </pre> - * - * <p>This must be a child of the <a - * href="{@docRoot}guide/topics/manifest/manifest-element.html">{@code <manifest>}</a> - * element. - * - * <p>For more information, read - * <a href="{@docRoot}guide/webapps/webview.html">Building Web Apps in WebView</a>. - * - * <h3>Basic usage</h3> - * - * <p>By default, a WebView provides no browser-like widgets, does not - * enable JavaScript and web page errors are ignored. If your goal is only - * to display some HTML as a part of your UI, this is probably fine; - * the user won't need to interact with the web page beyond reading - * it, and the web page won't need to interact with the user. If you - * actually want a full-blown web browser, then you probably want to - * invoke the Browser application with a URL Intent rather than show it - * with a WebView. For example: - * <pre> - * Uri uri = Uri.parse("https://www.example.com"); - * Intent intent = new Intent(Intent.ACTION_VIEW, uri); - * startActivity(intent); - * </pre> - * <p>See {@link android.content.Intent} for more information. - * - * <p>To provide a WebView in your own Activity, include a {@code <WebView>} in your layout, - * or set the entire Activity window as a WebView during {@link - * android.app.Activity#onCreate(Bundle) onCreate()}: - * - * <pre class="prettyprint"> - * WebView webview = new WebView(this); - * setContentView(webview); - * </pre> - * - * <p>Then load the desired web page: - * - * <pre> - * // Simplest usage: note that an exception will NOT be thrown - * // if there is an error loading this page (see below). - * webview.loadUrl("https://example.com/"); - * - * // OR, you can also load from an HTML string: - * String summary = "<html><body>You scored <b>192</b> points.</body></html>"; - * webview.loadData(summary, "text/html", null); - * // ... although note that there are restrictions on what this HTML can do. - * // See the JavaDocs for {@link #loadData(String,String,String) loadData()} and {@link - * #loadDataWithBaseURL(String,String,String,String,String) loadDataWithBaseURL()} for more info. - * </pre> - * - * <p>A WebView has several customization points where you can add your - * own behavior. These are: - * - * <ul> - * <li>Creating and setting a {@link android.webkit.WebChromeClient} subclass. - * This class is called when something that might impact a - * browser UI happens, for instance, progress updates and - * JavaScript alerts are sent here (see <a - * href="{@docRoot}guide/developing/debug-tasks.html#DebuggingWebPages">Debugging Tasks</a>). - * </li> - * <li>Creating and setting a {@link android.webkit.WebViewClient} subclass. - * It will be called when things happen that impact the - * rendering of the content, eg, errors or form submissions. You - * can also intercept URL loading here (via {@link - * android.webkit.WebViewClient#shouldOverrideUrlLoading(WebView,String) - * shouldOverrideUrlLoading()}).</li> - * <li>Modifying the {@link android.webkit.WebSettings}, such as - * enabling JavaScript with {@link android.webkit.WebSettings#setJavaScriptEnabled(boolean) - * setJavaScriptEnabled()}. </li> - * <li>Injecting Java objects into the WebView using the - * {@link android.webkit.WebView#addJavascriptInterface} method. This - * method allows you to inject Java objects into a page's JavaScript - * context, so that they can be accessed by JavaScript in the page.</li> - * </ul> - * - * <p>Here's a more complicated example, showing error handling, - * settings, and progress notification: - * - * <pre class="prettyprint"> - * // Let's display the progress in the activity title bar, like the - * // browser app does. - * getWindow().requestFeature(Window.FEATURE_PROGRESS); - * - * webview.getSettings().setJavaScriptEnabled(true); - * - * final Activity activity = this; - * webview.setWebChromeClient(new WebChromeClient() { - * public void onProgressChanged(WebView view, int progress) { - * // Activities and WebViews measure progress with different scales. - * // The progress meter will automatically disappear when we reach 100% - * activity.setProgress(progress * 1000); - * } - * }); - * webview.setWebViewClient(new WebViewClient() { - * public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) { - * Toast.makeText(activity, "Oh no! " + description, Toast.LENGTH_SHORT).show(); - * } - * }); - * - * webview.loadUrl("https://developer.android.com/"); - * </pre> - * - * <h3>Zoom</h3> - * - * <p>To enable the built-in zoom, set - * {@link #getSettings() WebSettings}.{@link WebSettings#setBuiltInZoomControls(boolean)} - * (introduced in API level {@link android.os.Build.VERSION_CODES#CUPCAKE}). - * - * <p class="note"><b>Note:</b> Using zoom if either the height or width is set to - * {@link android.view.ViewGroup.LayoutParams#WRAP_CONTENT} may lead to undefined behavior - * and should be avoided. - * - * <h3>Cookie and window management</h3> - * - * <p>For obvious security reasons, your application has its own - * cache, cookie store etc.—it does not share the Browser - * application's data. - * - * <p>By default, requests by the HTML to open new windows are - * ignored. This is {@code true} whether they be opened by JavaScript or by - * the target attribute on a link. You can customize your - * {@link WebChromeClient} to provide your own behavior for opening multiple windows, - * and render them in whatever manner you want. - * - * <p>The standard behavior for an Activity is to be destroyed and - * recreated when the device orientation or any other configuration changes. This will cause - * the WebView to reload the current page. If you don't want that, you - * can set your Activity to handle the {@code orientation} and {@code keyboardHidden} - * changes, and then just leave the WebView alone. It'll automatically - * re-orient itself as appropriate. Read <a - * href="{@docRoot}guide/topics/resources/runtime-changes.html">Handling Runtime Changes</a> for - * more information about how to handle configuration changes during runtime. - * - * - * <h3>Building web pages to support different screen densities</h3> - * - * <p>The screen density of a device is based on the screen resolution. A screen with low density - * has fewer available pixels per inch, where a screen with high density - * has more — sometimes significantly more — pixels per inch. The density of a - * screen is important because, other things being equal, a UI element (such as a button) whose - * height and width are defined in terms of screen pixels will appear larger on the lower density - * screen and smaller on the higher density screen. - * For simplicity, Android collapses all actual screen densities into three generalized densities: - * high, medium, and low. - * <p>By default, WebView scales a web page so that it is drawn at a size that matches the default - * appearance on a medium density screen. So, it applies 1.5x scaling on a high density screen - * (because its pixels are smaller) and 0.75x scaling on a low density screen (because its pixels - * are bigger). - * Starting with API level {@link android.os.Build.VERSION_CODES#ECLAIR}, WebView supports DOM, CSS, - * and meta tag features to help you (as a web developer) target screens with different screen - * densities. - * <p>Here's a summary of the features you can use to handle different screen densities: - * <ul> - * <li>The {@code window.devicePixelRatio} DOM property. The value of this property specifies the - * default scaling factor used for the current device. For example, if the value of {@code - * window.devicePixelRatio} is "1.0", then the device is considered a medium density (mdpi) device - * and default scaling is not applied to the web page; if the value is "1.5", then the device is - * considered a high density device (hdpi) and the page content is scaled 1.5x; if the - * value is "0.75", then the device is considered a low density device (ldpi) and the content is - * scaled 0.75x.</li> - * <li>The {@code -webkit-device-pixel-ratio} CSS media query. Use this to specify the screen - * densities for which this style sheet is to be used. The corresponding value should be either - * "0.75", "1", or "1.5", to indicate that the styles are for devices with low density, medium - * density, or high density screens, respectively. For example: - * <pre> - * <link rel="stylesheet" media="screen and (-webkit-device-pixel-ratio:1.5)" href="hdpi.css" /></pre> - * <p>The {@code hdpi.css} stylesheet is only used for devices with a screen pixel ration of 1.5, - * which is the high density pixel ratio. - * </li> - * </ul> - * - * <h3>HTML5 Video support</h3> - * - * <p>In order to support inline HTML5 video in your application you need to have hardware - * acceleration turned on. - * - * <h3>Full screen support</h3> - * - * <p>In order to support full screen — for video or other HTML content — you need to set a - * {@link android.webkit.WebChromeClient} and implement both - * {@link WebChromeClient#onShowCustomView(View, WebChromeClient.CustomViewCallback)} - * and {@link WebChromeClient#onHideCustomView()}. If the implementation of either of these two methods is - * missing then the web contents will not be allowed to enter full screen. Optionally you can implement - * {@link WebChromeClient#getVideoLoadingProgressView()} to customize the View displayed whilst a video - * is loading. - * - * <h3>HTML5 Geolocation API support</h3> - * - * <p>For applications targeting Android N and later releases - * (API level > {@link android.os.Build.VERSION_CODES#M}) the geolocation api is only supported on - * secure origins such as https. For such applications requests to geolocation api on non-secure - * origins are automatically denied without invoking the corresponding - * {@link WebChromeClient#onGeolocationPermissionsShowPrompt(String, GeolocationPermissions.Callback)} - * method. - * - * <h3>Layout size</h3> - * <p> - * It is recommended to set the WebView layout height to a fixed value or to - * {@link android.view.ViewGroup.LayoutParams#MATCH_PARENT} instead of using - * {@link android.view.ViewGroup.LayoutParams#WRAP_CONTENT}. - * When using {@link android.view.ViewGroup.LayoutParams#MATCH_PARENT} - * for the height none of the WebView's parents should use a - * {@link android.view.ViewGroup.LayoutParams#WRAP_CONTENT} layout height since that could result in - * incorrect sizing of the views. - * - * <p>Setting the WebView's height to {@link android.view.ViewGroup.LayoutParams#WRAP_CONTENT} - * enables the following behaviors: - * <ul> - * <li>The HTML body layout height is set to a fixed value. This means that elements with a height - * relative to the HTML body may not be sized correctly. </li> - * <li>For applications targeting {@link android.os.Build.VERSION_CODES#KITKAT} and earlier SDKs the - * HTML viewport meta tag will be ignored in order to preserve backwards compatibility. </li> - * </ul> - * - * <p> - * Using a layout width of {@link android.view.ViewGroup.LayoutParams#WRAP_CONTENT} is not - * supported. If such a width is used the WebView will attempt to use the width of the parent - * instead. - * - * <h3>Metrics</h3> - * - * <p> - * WebView may upload anonymous diagnostic data to Google when the user has consented. This data - * helps Google improve WebView. Data is collected on a per-app basis for each app which has - * instantiated a WebView. An individual app can opt out of this feature by putting the following - * tag in its manifest's {@code <application>} element: - * <pre> - * <manifest> - * <application> - * ... - * <meta-data android:name="android.webkit.WebView.MetricsOptOut" - * android:value="true" /> - * </application> - * </manifest> - * </pre> - * <p> - * Data will only be uploaded for a given app if the user has consented AND the app has not opted - * out. - * - * <h3>Safe Browsing</h3> - * - * <p> - * If Safe Browsing is enabled, WebView will block malicious URLs and present a warning UI to the - * user to allow them to navigate back safely or proceed to the malicious page. - * <p> - * The recommended way for apps to enable the feature is putting the following tag in the manifest's - * {@code <application>} element: - * <p> - * <pre> - * <manifest> - * <application> - * ... - * <meta-data android:name="android.webkit.WebView.EnableSafeBrowsing" - * android:value="true" /> - * </application> - * </manifest> - * </pre> + * Mock version of the WebView. + * Only non override public methods from the real WebView have been added in there. + * Methods that take an unknown class as parameter or as return object, have been removed for now. + * + * TODO: generate automatically. * */ -// Implementation notes. -// The WebView is a thin API class that delegates its public API to a backend WebViewProvider -// class instance. WebView extends {@link AbsoluteLayout} for backward compatibility reasons. -// Methods are delegated to the provider implementation: all public API methods introduced in this -// file are fully delegated, whereas public and protected methods from the View base classes are -// only delegated where a specific need exists for them to do so. -@Widget -public class WebView extends AbsoluteLayout - implements ViewTreeObserver.OnGlobalFocusChangeListener, - ViewGroup.OnHierarchyChangeListener, ViewDebug.HierarchyHandler { - - private static final String LOGTAG = "WebView"; - - // Throwing an exception for incorrect thread usage if the - // build target is JB MR2 or newer. Defaults to false, and is - // set in the WebView constructor. - private static volatile boolean sEnforceThreadChecking = false; - - /** - * Transportation object for returning WebView across thread boundaries. - */ - public class WebViewTransport { - private WebView mWebview; +public class WebView extends MockView { - /** - * Sets the WebView to the transportation object. - * - * @param webview the WebView to transport - */ - public synchronized void setWebView(WebView webview) { - mWebview = webview; - } - - /** - * Gets the WebView object. - * - * @return the transported WebView object - */ - public synchronized WebView getWebView() { - return mWebview; - } - } - - /** - * URI scheme for telephone number. - */ - public static final String SCHEME_TEL = "tel:"; /** - * URI scheme for email address. - */ - public static final String SCHEME_MAILTO = "mailto:"; - /** - * URI scheme for map address. - */ - public static final String SCHEME_GEO = "geo:0,0?q="; - - /** - * Interface to listen for find results. - */ - public interface FindListener { - /** - * Notifies the listener about progress made by a find operation. - * - * @param activeMatchOrdinal the zero-based ordinal of the currently selected match - * @param numberOfMatches how many matches have been found - * @param isDoneCounting whether the find operation has actually completed. The listener - * may be notified multiple times while the - * operation is underway, and the numberOfMatches - * value should not be considered final unless - * isDoneCounting is {@code true}. - */ - public void onFindResultReceived(int activeMatchOrdinal, int numberOfMatches, - boolean isDoneCounting); - } - - /** - * Callback interface supplied to {@link #postVisualStateCallback} for receiving - * notifications about the visual state. - */ - public static abstract class VisualStateCallback { - /** - * Invoked when the visual state is ready to be drawn in the next {@link #onDraw}. - * - * @param requestId The identifier passed to {@link #postVisualStateCallback} when this - * callback was posted. - */ - public abstract void onComplete(long requestId); - } - - /** - * Interface to listen for new pictures as they change. - * - * @deprecated This interface is now obsolete. - */ - @Deprecated - public interface PictureListener { - /** - * Used to provide notification that the WebView's picture has changed. - * See {@link WebView#capturePicture} for details of the picture. - * - * @param view the WebView that owns the picture - * @param picture the new picture. Applications targeting - * {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR2} or above - * will always receive a {@code null} Picture. - * @deprecated Deprecated due to internal changes. - */ - @Deprecated - void onNewPicture(WebView view, @Nullable Picture picture); - } - - public static class HitTestResult { - /** - * Default HitTestResult, where the target is unknown. - */ - public static final int UNKNOWN_TYPE = 0; - /** - * @deprecated This type is no longer used. - */ - @Deprecated - public static final int ANCHOR_TYPE = 1; - /** - * HitTestResult for hitting a phone number. - */ - public static final int PHONE_TYPE = 2; - /** - * HitTestResult for hitting a map address. - */ - public static final int GEO_TYPE = 3; - /** - * HitTestResult for hitting an email address. - */ - public static final int EMAIL_TYPE = 4; - /** - * HitTestResult for hitting an HTML::img tag. - */ - public static final int IMAGE_TYPE = 5; - /** - * @deprecated This type is no longer used. - */ - @Deprecated - public static final int IMAGE_ANCHOR_TYPE = 6; - /** - * HitTestResult for hitting a HTML::a tag with src=http. - */ - public static final int SRC_ANCHOR_TYPE = 7; - /** - * HitTestResult for hitting a HTML::a tag with src=http + HTML::img. - */ - public static final int SRC_IMAGE_ANCHOR_TYPE = 8; - /** - * HitTestResult for hitting an edit text area. - */ - public static final int EDIT_TEXT_TYPE = 9; - - private int mType; - private String mExtra; - - /** - * @hide Only for use by WebViewProvider implementations - */ - @SystemApi - public HitTestResult() { - mType = UNKNOWN_TYPE; - } - - /** - * @hide Only for use by WebViewProvider implementations - */ - @SystemApi - public void setType(int type) { - mType = type; - } - - /** - * @hide Only for use by WebViewProvider implementations - */ - @SystemApi - public void setExtra(String extra) { - mExtra = extra; - } - - /** - * Gets the type of the hit test result. See the XXX_TYPE constants - * defined in this class. - * - * @return the type of the hit test result - */ - public int getType() { - return mType; - } - - /** - * Gets additional type-dependant information about the result. See - * {@link WebView#getHitTestResult()} for details. May either be {@code null} - * or contain extra information about this result. - * - * @return additional type-dependant information about the result - */ - @Nullable - public String getExtra() { - return mExtra; - } - } - - /** - * Constructs a new WebView with an Activity Context object. - * - * <p class="note"><b>Note:</b> WebView should always be instantiated with an Activity Context. - * If instantiated with an Application Context, WebView will be unable to provide several - * features, such as JavaScript dialogs and autofill. - * - * @param context an Activity Context to access application assets + * Construct a new WebView with a Context object. + * @param context A Context object used to access application assets. */ public WebView(Context context) { this(context, null); } /** - * Constructs a new WebView with layout parameters. - * - * @param context an Activity Context to access application assets - * @param attrs an AttributeSet passed to our parent + * Construct a new WebView with layout parameters. + * @param context A Context object used to access application assets. + * @param attrs An AttributeSet passed to our parent. */ public WebView(Context context, AttributeSet attrs) { this(context, attrs, com.android.internal.R.attr.webViewStyle); } /** - * Constructs a new WebView with layout parameters and a default style. - * - * @param context an Activity Context to access application assets - * @param attrs an AttributeSet passed to our parent - * @param defStyleAttr an attribute in the current theme that contains a - * reference to a style resource that supplies default values for - * the view. Can be 0 to not look for defaults. + * Construct a new WebView with layout parameters and a default style. + * @param context A Context object used to access application assets. + * @param attrs An AttributeSet passed to our parent. + * @param defStyle The default style resource ID. */ - public WebView(Context context, AttributeSet attrs, int defStyleAttr) { - this(context, attrs, defStyleAttr, 0); + public WebView(Context context, AttributeSet attrs, int defStyle) { + super(context, attrs, defStyle); } - - /** - * Constructs a new WebView with layout parameters and a default style. - * - * @param context an Activity Context to access application assets - * @param attrs an AttributeSet passed to our parent - * @param defStyleAttr an attribute in the current theme that contains a - * reference to a style resource that supplies default values for - * the view. Can be 0 to not look for defaults. - * @param defStyleRes a resource identifier of a style resource that - * supplies default values for the view, used only if - * defStyleAttr is 0 or can not be found in the theme. Can be 0 - * to not look for defaults. - */ - public WebView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { - this(context, attrs, defStyleAttr, defStyleRes, null, false); - } - - /** - * Constructs a new WebView with layout parameters and a default style. - * - * @param context an Activity Context to access application assets - * @param attrs an AttributeSet passed to our parent - * @param defStyleAttr an attribute in the current theme that contains a - * reference to a style resource that supplies default values for - * the view. Can be 0 to not look for defaults. - * @param privateBrowsing whether this WebView will be initialized in - * private mode - * - * @deprecated Private browsing is no longer supported directly via - * WebView and will be removed in a future release. Prefer using - * {@link WebSettings}, {@link WebViewDatabase}, {@link CookieManager} - * and {@link WebStorage} for fine-grained control of privacy data. - */ - @Deprecated - public WebView(Context context, AttributeSet attrs, int defStyleAttr, - boolean privateBrowsing) { - this(context, attrs, defStyleAttr, 0, null, privateBrowsing); - } - - /** - * Constructs a new WebView with layout parameters, a default style and a set - * of custom JavaScript interfaces to be added to this WebView at initialization - * time. This guarantees that these interfaces will be available when the JS - * context is initialized. - * - * @param context an Activity Context to access application assets - * @param attrs an AttributeSet passed to our parent - * @param defStyleAttr an attribute in the current theme that contains a - * reference to a style resource that supplies default values for - * the view. Can be 0 to not look for defaults. - * @param javaScriptInterfaces a Map of interface names, as keys, and - * object implementing those interfaces, as - * values - * @param privateBrowsing whether this WebView will be initialized in - * private mode - * @hide This is used internally by dumprendertree, as it requires the JavaScript interfaces to - * be added synchronously, before a subsequent loadUrl call takes effect. - */ - protected WebView(Context context, AttributeSet attrs, int defStyleAttr, - Map<String, Object> javaScriptInterfaces, boolean privateBrowsing) { - this(context, attrs, defStyleAttr, 0, javaScriptInterfaces, privateBrowsing); - } - - /** - * @hide - */ - @SuppressWarnings("deprecation") // for super() call into deprecated base class constructor. - protected WebView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes, - Map<String, Object> javaScriptInterfaces, boolean privateBrowsing) { - super(context, attrs, defStyleAttr, defStyleRes); - - // WebView is important by default, unless app developer overrode attribute. - if (getImportantForAutofill() == IMPORTANT_FOR_AUTOFILL_AUTO) { - setImportantForAutofill(IMPORTANT_FOR_AUTOFILL_YES); - } - - if (context == null) { - throw new IllegalArgumentException("Invalid context argument"); - } - sEnforceThreadChecking = context.getApplicationInfo().targetSdkVersion >= - Build.VERSION_CODES.JELLY_BEAN_MR2; - checkThread(); - - ensureProviderCreated(); - mProvider.init(javaScriptInterfaces, privateBrowsing); - // Post condition of creating a webview is the CookieSyncManager.getInstance() is allowed. - CookieSyncManager.setGetInstanceIsAllowed(); - } - - /** - * Specifies whether the horizontal scrollbar has overlay style. - * - * @deprecated This method has no effect. - * @param overlay {@code true} if horizontal scrollbar should have overlay style - */ - @Deprecated + + // START FAKE PUBLIC METHODS + public void setHorizontalScrollbarOverlay(boolean overlay) { } - /** - * Specifies whether the vertical scrollbar has overlay style. - * - * @deprecated This method has no effect. - * @param overlay {@code true} if vertical scrollbar should have overlay style - */ - @Deprecated public void setVerticalScrollbarOverlay(boolean overlay) { } - /** - * Gets whether horizontal scrollbar has overlay style. - * - * @deprecated This method is now obsolete. - * @return {@code true} - */ - @Deprecated public boolean overlayHorizontalScrollbar() { - // The old implementation defaulted to true, so return true for consistency - return true; + return false; } - /** - * Gets whether vertical scrollbar has overlay style. - * - * @deprecated This method is now obsolete. - * @return {@code false} - */ - @Deprecated public boolean overlayVerticalScrollbar() { - // The old implementation defaulted to false, so return false for consistency return false; } - /** - * Gets the visible height (in pixels) of the embedded title bar (if any). - * - * @deprecated This method is now obsolete. - * @hide Since API level {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1} - */ - @Deprecated - public int getVisibleTitleHeight() { - checkThread(); - return mProvider.getVisibleTitleHeight(); - } - - /** - * Gets the SSL certificate for the main top-level page or {@code null} if there is - * no certificate (the site is not secure). - * - * @return the SSL certificate for the main top-level page - */ - @Nullable - public SslCertificate getCertificate() { - checkThread(); - return mProvider.getCertificate(); - } - - /** - * Sets the SSL certificate for the main top-level page. - * - * @deprecated Calling this function has no useful effect, and will be - * ignored in future releases. - */ - @Deprecated - public void setCertificate(SslCertificate certificate) { - checkThread(); - mProvider.setCertificate(certificate); - } - - //------------------------------------------------------------------------- - // Methods called by activity - //------------------------------------------------------------------------- - - /** - * Sets a username and password pair for the specified host. This data is - * used by the WebView to autocomplete username and password fields in web - * forms. Note that this is unrelated to the credentials used for HTTP - * authentication. - * - * @param host the host that required the credentials - * @param username the username for the given host - * @param password the password for the given host - * @see WebViewDatabase#clearUsernamePassword - * @see WebViewDatabase#hasUsernamePassword - * @deprecated Saving passwords in WebView will not be supported in future versions. - */ - @Deprecated public void savePassword(String host, String username, String password) { - checkThread(); - mProvider.savePassword(host, username, password); } - /** - * Stores HTTP authentication credentials for a given host and realm to the {@link WebViewDatabase} - * instance. - * - * @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 - * @deprecated Use {@link WebViewDatabase#setHttpAuthUsernamePassword} instead - */ - @Deprecated public void setHttpAuthUsernamePassword(String host, String realm, String username, String password) { - checkThread(); - mProvider.setHttpAuthUsernamePassword(host, realm, username, password); } - /** - * Retrieves HTTP authentication credentials for a given host and realm from the {@link - * WebViewDatabase} instance. - * @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. {@code null} if - * no credentials are found. - * @deprecated Use {@link WebViewDatabase#getHttpAuthUsernamePassword} instead - */ - @Deprecated - @Nullable public String[] getHttpAuthUsernamePassword(String host, String realm) { - checkThread(); - return mProvider.getHttpAuthUsernamePassword(host, realm); + return null; } - /** - * 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(); - mProvider.destroy(); } - /** - * Enables platform notifications of data state and proxy changes. - * Notifications are enabled by default. - * - * @deprecated This method is now obsolete. - * @hide Since API level {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1} - */ - @Deprecated public static void enablePlatformNotifications() { - // noop } - /** - * Disables platform notifications of data state and proxy changes. - * Notifications are enabled by default. - * - * @deprecated This method is now obsolete. - * @hide Since API level {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1} - */ - @Deprecated public static void disablePlatformNotifications() { - // noop } - /** - * Used only by internal tests to free up memory. - * - * @hide - */ - public static void freeMemoryForTests() { - getFactory().getStatics().freeMemoryForTests(); - } - - /** - * 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(); - 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, {@code null} if the - * method fails. - */ - @Nullable - public WebBackForwardList saveState(Bundle outState) { - checkThread(); - return mProvider.saveState(outState); - } - - /** - * Saves the current display data to the Bundle given. Used in conjunction - * with {@link #saveState}. - * @param b a Bundle to store the display data - * @param dest the file to store the serialized picture data. Will be - * overwritten with this WebView's picture data. - * @return {@code true} if the picture was successfully saved - * @deprecated This method is now obsolete. - * @hide Since API level {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1} - */ - @Deprecated - public boolean savePicture(Bundle b, final File dest) { - checkThread(); - return mProvider.savePicture(b, dest); - } - - /** - * Restores the display data that was saved in {@link #savePicture}. Used in - * conjunction with {@link #restoreState}. Note that this will not work if - * this WebView is hardware accelerated. - * - * @param b a Bundle containing the saved display data - * @param src the file where the picture data was stored - * @return {@code true} if the picture was successfully restored - * @deprecated This method is now obsolete. - * @hide Since API level {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1} - */ - @Deprecated - public boolean restorePicture(Bundle b, File src) { - checkThread(); - return mProvider.restorePicture(b, src); - } - - /** - * 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 {@code null} if restoreState failed - */ - @Nullable - public WebBackForwardList restoreState(Bundle inState) { - checkThread(); - return mProvider.restoreState(inState); - } - - /** - * Loads the given URL with the specified additional HTTP headers. - * <p> - * Also see compatibility note on {@link #evaluateJavascript}. - * - * @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 overridden by this WebView's defaults. - */ - public void loadUrl(String url, Map<String, String> additionalHttpHeaders) { - checkThread(); - mProvider.loadUrl(url, additionalHttpHeaders); - } - - /** - * Loads the given URL. - * <p> - * Also see compatibility note on {@link #evaluateJavascript}. - * - * @param url the URL of the resource to load - */ public void loadUrl(String url) { - checkThread(); - 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 #loadUrl(String)} - * instead, ignoring the postData param. - * - * @param url the URL of the resource to load - * @param postData the data will be passed to "POST" request, which must be - * be "application/x-www-form-urlencoded" encoded. - */ - public void postUrl(String url, byte[] postData) { - checkThread(); - if (URLUtil.isNetworkUrl(url)) { - mProvider.postUrl(url, postData); - } else { - mProvider.loadUrl(url); - } } - /** - * 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 {@code 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 MIMEType of the data, e.g. 'text/html'. If {@code null}, - * defaults to 'text/html'. - * @param encoding the encoding of the data - */ - public void loadData(String data, @Nullable String mimeType, @Nullable String encoding) { - checkThread(); - mProvider.loadData(data, mimeType, encoding); + public void loadData(String data, String mimeType, String 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, and the data will be treated as part of a data: URL. - * If the base URL uses any other scheme, then the data will be loaded into - * the WebView as a plain string (i.e. not part of a data URL) and any URL-encoded - * entities in the string will not be decoded. - * <p> - * Note that the baseUrl is sent in the 'Referer' HTTP header when - * requesting subresources (images, etc.) of the page loaded using this method. - * - * @param baseUrl the URL to use as the page's base URL. If {@code 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 {@code null}, - * defaults to 'text/html'. - * @param encoding the encoding of the data - * @param historyUrl the URL to use as the history entry. If {@code null} defaults - * to 'about:blank'. If non-null, this must be a valid URL. - */ - public void loadDataWithBaseURL(@Nullable String baseUrl, String data, - @Nullable String mimeType, @Nullable String encoding, @Nullable String historyUrl) { - checkThread(); - mProvider.loadDataWithBaseURL(baseUrl, data, mimeType, encoding, historyUrl); + public void loadDataWithBaseURL(String baseUrl, String data, + String mimeType, String encoding, String failUrl) { } - /** - * 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. - * <p> - * Compatibility note. Applications targeting {@link android.os.Build.VERSION_CODES#N} or - * later, JavaScript state from an empty WebView is no longer persisted across navigations like - * {@link #loadUrl(String)}. For example, global variables and functions defined before calling - * {@link #loadUrl(String)} will not exist in the loaded page. Applications should use - * {@link #addJavascriptInterface} instead to persist JavaScript objects across navigations. - * - * @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 {@code null} if no notification of the result is required. - */ - public void evaluateJavascript(String script, @Nullable ValueCallback<String> resultCallback) { - checkThread(); - 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(); - mProvider.saveWebArchive(filename); - } - - /** - * Saves the current view as a web archive. - * - * @param basename the filename where the archive should be placed - * @param autoname if {@code false}, takes basename to be a file. If {@code 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 {@code null} if saving the - * file failed. - */ - public void saveWebArchive(String basename, boolean autoname, @Nullable ValueCallback<String> - callback) { - checkThread(); - mProvider.saveWebArchive(basename, autoname, callback); - } - - /** - * Stops the current load. - */ public void stopLoading() { - checkThread(); - mProvider.stopLoading(); } - /** - * Reloads the current URL. - */ public void reload() { - checkThread(); - mProvider.reload(); } - /** - * Gets whether this WebView has a back history item. - * - * @return {@code true} if this WebView has a back history item - */ public boolean canGoBack() { - checkThread(); - return mProvider.canGoBack(); + return false; } - /** - * Goes back in the history of this WebView. - */ public void goBack() { - checkThread(); - mProvider.goBack(); } - /** - * Gets whether this WebView has a forward history item. - * - * @return {@code true} if this WebView has a forward history item - */ public boolean canGoForward() { - checkThread(); - return mProvider.canGoForward(); + return false; } - /** - * Goes forward in the history of this WebView. - */ public void goForward() { - checkThread(); - 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); + return false; } - /** - * 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(); - 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 {@code true} to jump to the top of the page - * @return {@code true} if the page was scrolled - */ public boolean pageUp(boolean top) { - checkThread(); - return mProvider.pageUp(top); + return false; } - - /** - * Scrolls the contents of this WebView down by half the page size. - * - * @param bottom {@code true} to jump to bottom of page - * @return {@code true} if the page was scrolled - */ + public boolean pageDown(boolean bottom) { - checkThread(); - return mProvider.pageDown(bottom); - } - - /** - * Posts a {@link VisualStateCallback}, which will be called when - * the current state of the WebView is ready to be drawn. - * - * <p>Because updates to the DOM are processed asynchronously, updates to the DOM may not - * immediately be reflected visually by subsequent {@link WebView#onDraw} invocations. The - * {@link VisualStateCallback} provides a mechanism to notify the caller when the contents of - * the DOM at the current time are ready to be drawn the next time the {@link WebView} - * draws. - * - * <p>The next draw after the callback completes is guaranteed to reflect all the updates to the - * DOM up to the point at which the {@link VisualStateCallback} was posted, but it may also - * contain updates applied after the callback was posted. - * - * <p>The state of the DOM covered by this API includes the following: - * <ul> - * <li>primitive HTML elements (div, img, span, etc..)</li> - * <li>images</li> - * <li>CSS animations</li> - * <li>WebGL</li> - * <li>canvas</li> - * </ul> - * It does not include the state of: - * <ul> - * <li>the video tag</li> - * </ul> - * - * <p>To guarantee that the {@link WebView} will successfully render the first frame - * after the {@link VisualStateCallback#onComplete} method has been called a set of conditions - * must be met: - * <ul> - * <li>If the {@link WebView}'s visibility is set to {@link View#VISIBLE VISIBLE} then - * the {@link WebView} must be attached to the view hierarchy.</li> - * <li>If the {@link WebView}'s visibility is set to {@link View#INVISIBLE INVISIBLE} - * then the {@link WebView} must be attached to the view hierarchy and must be made - * {@link View#VISIBLE VISIBLE} from the {@link VisualStateCallback#onComplete} method.</li> - * <li>If the {@link WebView}'s visibility is set to {@link View#GONE GONE} then the - * {@link WebView} must be attached to the view hierarchy and its - * {@link AbsoluteLayout.LayoutParams LayoutParams}'s width and height need to be set to fixed - * values and must be made {@link View#VISIBLE VISIBLE} from the - * {@link VisualStateCallback#onComplete} method.</li> - * </ul> - * - * <p>When using this API it is also recommended to enable pre-rasterization if the {@link - * WebView} is off screen to avoid flickering. See {@link WebSettings#setOffscreenPreRaster} for - * more details and do consider its caveats. - * - * @param requestId An id that will be returned in the callback to allow callers to match - * requests with callbacks. - * @param callback The callback to be invoked. - */ - public void postVisualStateCallback(long requestId, VisualStateCallback callback) { - checkThread(); - mProvider.insertVisualStateCallback(requestId, callback); + return false; } - /** - * Clears this WebView so that onDraw() will draw nothing but white background, - * and onMeasure() will return 0 if MeasureSpec is not MeasureSpec.EXACTLY. - * @deprecated Use WebView.loadUrl("about:blank") to reliably reset the view state - * and release page resources (including any running JavaScript). - */ - @Deprecated public void clearView() { - checkThread(); - mProvider.clearView(); } - - /** - * Gets a new picture that captures the current contents of this WebView. - * The picture is of the entire document being displayed, and is not - * limited to the area currently displayed by this WebView. Also, the - * picture is a static copy and is unaffected by later changes to the - * content being displayed. - * <p> - * Note that due to internal changes, for API levels between - * {@link android.os.Build.VERSION_CODES#HONEYCOMB} and - * {@link android.os.Build.VERSION_CODES#ICE_CREAM_SANDWICH} inclusive, the - * picture does not include fixed position elements or scrollable divs. - * <p> - * Note that from {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1} the returned picture - * should only be drawn into bitmap-backed Canvas - using any other type of Canvas will involve - * additional conversion at a cost in memory and performance. Also the - * {@link android.graphics.Picture#createFromStream} and - * {@link android.graphics.Picture#writeToStream} methods are not supported on the - * returned object. - * - * @deprecated Use {@link #onDraw} to obtain a bitmap snapshot of the WebView, or - * {@link #saveWebArchive} to save the content to a file. - * - * @return a picture that captures the current contents of this WebView - */ - @Deprecated + public Picture capturePicture() { - checkThread(); - return mProvider.capturePicture(); - } - - /** - * @deprecated Use {@link #createPrintDocumentAdapter(String)} which requires user - * to provide a print document name. - */ - @Deprecated - public PrintDocumentAdapter createPrintDocumentAdapter() { - checkThread(); - return mProvider.createPrintDocumentAdapter("default"); + return null; } - /** - * Creates a PrintDocumentAdapter that provides the content of this WebView for printing. - * - * The adapter works by converting the WebView contents to a PDF stream. The WebView cannot - * be drawn during the conversion process - any such draws are undefined. It is recommended - * to use a dedicated off screen WebView for the printing. If necessary, an application may - * temporarily hide a visible WebView by using a custom PrintDocumentAdapter instance - * wrapped around the object returned and observing the onStart and onFinish methods. See - * {@link android.print.PrintDocumentAdapter} for more information. - * - * @param documentName The user-facing name of the printed document. See - * {@link android.print.PrintDocumentInfo} - */ - public PrintDocumentAdapter createPrintDocumentAdapter(String documentName) { - checkThread(); - return mProvider.createPrintDocumentAdapter(documentName); - } - - /** - * Gets the current scale of this WebView. - * - * @return the current scale - * - * @deprecated This method is prone to inaccuracy due to race conditions - * between the web rendering and UI threads; prefer - * {@link WebViewClient#onScaleChanged}. - */ - @Deprecated - @ViewDebug.ExportedProperty(category = "webview") public float getScale() { - checkThread(); - return mProvider.getScale(); + return 0; } - /** - * Sets the initial scale for this WebView. 0 means default. - * The behavior for the default scale depends on the state of - * {@link WebSettings#getUseWideViewPort()} and - * {@link WebSettings#getLoadWithOverviewMode()}. - * If the content fits into the WebView control by width, then - * the zoom is set to 100%. For wide content, the behavior - * depends on the state of {@link WebSettings#getLoadWithOverviewMode()}. - * If its value is {@code true}, the content will be zoomed out to be fit - * by width into the WebView control, otherwise not. - * - * 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(); - 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(); - 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(); - return mProvider.getHitTestResult(); } - /** - * Requests the anchor or image element URL at the last tapped point. - * If hrefMsg is {@code 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(@Nullable Message hrefMsg) { - checkThread(); - mProvider.requestFocusNodeHref(hrefMsg); + public void requestFocusNodeHref(Message 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 {@code null}. - */ public void requestImageRef(Message msg) { - checkThread(); - 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(); + return null; } - /** - * 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(); + return null; } - /** - * 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(); + return null; } - /** - * Gets the touch icon URL for the apple-touch-icon <link> element, or - * a URL on this site's server pointing to the standard location of a - * touch icon. - * - * @hide - */ - public String getTouchIconUrl() { - return mProvider.getTouchIconUrl(); - } - - /** - * 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(); + return 0; } - - /** - * 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(); + return 0; } - /** - * 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(); - mProvider.pauseTimers(); } - /** - * Resumes all layout, parsing, and JavaScript timers for all WebViews. - * This will resume dispatching all timers. - */ public void resumeTimers() { - checkThread(); - mProvider.resumeTimers(); - } - - /** - * Does a best-effort attempt to pause any processing that can be paused - * safely, such as animations and geolocation. Note that this call - * does not pause JavaScript. To pause JavaScript globally, use - * {@link #pauseTimers}. - * - * To resume WebView, call {@link #onResume}. - */ - public void onPause() { - checkThread(); - mProvider.onPause(); - } - - /** - * Resumes a WebView after a previous call to {@link #onPause}. - */ - public void onResume() { - checkThread(); - mProvider.onResume(); - } - - /** - * Gets whether this WebView is paused, meaning onPause() was called. - * Calling onResume() sets the paused state back to {@code false}. - * - * @hide - */ - public boolean isPaused() { - return mProvider.isPaused(); - } - - /** - * Informs this WebView that memory is low so that it can free any available - * memory. - * @deprecated Memory caches are automatically dropped when no longer needed, and in response - * to system memory pressure. - */ - @Deprecated - public void freeMemory() { - checkThread(); - mProvider.freeMemory(); } - /** - * Clears the resource cache. Note that the cache is per-application, so - * this will clear the cache for all WebViews used. - * - * @param includeDiskFiles if {@code false}, only the RAM cache is cleared - */ - public void clearCache(boolean includeDiskFiles) { - checkThread(); - mProvider.clearCache(includeDiskFiles); + public void clearCache() { } - /** - * 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(); - mProvider.clearFormData(); } - /** - * Tells this WebView to clear its internal back/forward list. - */ public void clearHistory() { - checkThread(); - mProvider.clearHistory(); } - /** - * Clears the SSL preferences table stored in response to proceeding with - * SSL certificate errors. - */ public void clearSslPreferences() { - checkThread(); - mProvider.clearSslPreferences(); - } - - /** - * Clears the client certificate preferences stored in response - * to proceeding/cancelling client cert requests. Note that WebView - * automatically clears these preferences when it receives a - * {@link KeyChain#ACTION_STORAGE_CHANGED} intent. The preferences are - * shared by all the WebViews that are created by the embedder application. - * - * @param onCleared A runnable to be invoked when client certs are cleared. - * The runnable will be called in UI thread. - */ - public static void clearClientCertPreferences(@Nullable Runnable onCleared) { - getFactory().getStatics().clearClientCertPreferences(onCleared); - } - - /** - * Starts Safe Browsing initialization. - * <p> - * URL loads are not guaranteed to be protected by Safe Browsing until after {@code callback} is - * invoked with {@code true}. Safe Browsing is not fully supported on all devices. For those - * devices {@code callback} will receive {@code false}. - * <p> - * This does not enable the Safe Browsing feature itself, and should only be called if Safe - * Browsing is enabled by the manifest tag or {@link WebSettings#setSafeBrowsingEnabled}. This - * prepares resources used for Safe Browsing. - * <p> - * This should be called with the Application Context (and will always use the Application - * context to do its work regardless). - * - * @param context Application Context. - * @param callback will be called on the UI thread with {@code true} if initialization is - * successful, {@code false} otherwise. - */ - public static void startSafeBrowsing(Context context, - @Nullable ValueCallback<Boolean> callback) { - getFactory().getStatics().initSafeBrowsing(context, callback); - } - - /** - * Sets the list of domains that are exempt from SafeBrowsing checks. The list is - * global for all the WebViews. - * <p> - * Each rule should take one of these: - * <table> - * <tr><th> Rule </th> <th> Example </th> <th> Matches Subdomain</th> </tr> - * <tr><td> HOSTNAME </td> <td> example.com </td> <td> Yes </td> </tr> - * <tr><td> .HOSTNAME </td> <td> .example.com </td> <td> No </td> </tr> - * <tr><td> IPV4_LITERAL </td> <td> 192.168.1.1 </td> <td> No </td></tr> - * <tr><td> IPV6_LITERAL_WITH_BRACKETS </td><td>[10:20:30:40:50:60:70:80]</td><td>No</td></tr> - * </table> - * <p> - * All other rules, including wildcards, are invalid. - * - * @param urls the list of URLs - * @param callback will be called with {@code true} if URLs are successfully added to the - * whitelist. It will be called with {@code false} if any URLs are malformed. The callback will - * be run on the UI thread - */ - public static void setSafeBrowsingWhitelist(@NonNull List<String> urls, - @Nullable ValueCallback<Boolean> callback) { - getFactory().getStatics().setSafeBrowsingWhitelist(urls, callback); - } - - /** - * Returns a URL pointing to the privacy policy for Safe Browsing reporting. - * - * @return the url pointing to a privacy policy document which can be displayed to users. - */ - @NonNull - public static Uri getSafeBrowsingPrivacyPolicyUrl() { - return getFactory().getStatics().getSafeBrowsingPrivacyPolicyUrl(); - } - - /** - * 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(); - mProvider.findNext(forward); - } - - /** - * Finds all instances of find on the page and highlights them. - * Notifies any registered {@link FindListener}. - * - * @param find the string to find - * @return the number of occurrences of the String "find" that were found - * @deprecated {@link #findAllAsync} is preferred. - * @see #setFindListener - */ - @Deprecated - public int findAll(String find) { - checkThread(); - StrictMode.noteSlowCall("findAll blocks UI: prefer findAllAsync"); - return mProvider.findAll(find); - } - - /** - * 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(); - mProvider.findAllAsync(find); - } - - /** - * Starts an ActionMode for finding text in this WebView. Only works if this - * WebView is attached to the view system. - * - * @param text if non-null, will be the initial text to search for. - * Otherwise, the last String searched for in this WebView will - * be used to start. - * @param showIme if {@code true}, show the IME, assuming the user will begin typing. - * If {@code false} and text is non-null, perform a find all. - * @return {@code true} if the find dialog is shown, {@code false} otherwise - * @deprecated This method does not work reliably on all Android versions; - * implementing a custom find dialog using WebView.findAllAsync() - * provides a more robust solution. - */ - @Deprecated - public boolean showFindDialog(@Nullable String text, boolean showIme) { - checkThread(); - return mProvider.showFindDialog(text, showIme); } - /** - * 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, {@code null} - */ - @Nullable public static String findAddress(String addr) { - // TODO: Rewrite this in Java so it is not needed to start up chromium - // Could also be deprecated - return getFactory().getStatics().findAddress(addr); - } - - /** - * For apps targeting the L release, WebView has a new default behavior that reduces - * memory footprint and increases performance by intelligently choosing - * the portion of the HTML document that needs to be drawn. These - * optimizations are transparent to the developers. However, under certain - * circumstances, an App developer may want to disable them: - * <ol> - * <li>When an app uses {@link #onDraw} to do own drawing and accesses portions - * of the page that is way outside the visible portion of the page.</li> - * <li>When an app uses {@link #capturePicture} to capture a very large HTML document. - * Note that capturePicture is a deprecated API.</li> - * </ol> - * Enabling drawing the entire HTML document has a significant performance - * cost. This method should be called before any WebViews are created. - */ - public static void enableSlowWholeDocumentDraw() { - getFactory().getStatics().enableSlowWholeDocumentDraw(); + return null; } - /** - * Clears the highlighting surrounding text matches created by - * {@link #findAllAsync}. - */ - public void clearMatches() { - checkThread(); - 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 - * @see #getWebViewClient - */ public void setWebViewClient(WebViewClient client) { - checkThread(); - mProvider.setWebViewClient(client); - } - - /** - * Gets the WebViewClient. - * - * @return the WebViewClient, or a default client if not yet set - * @see #setWebViewClient - */ - public WebViewClient getWebViewClient() { - checkThread(); - return mProvider.getWebViewClient(); } - /** - * 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 - * @see #getWebChromeClient - */ public void setWebChromeClient(WebChromeClient client) { - checkThread(); - mProvider.setWebChromeClient(client); } - /** - * Gets the chrome handler. - * - * @return the WebChromeClient, or {@code null} if not yet set - * @see #setWebChromeClient - */ - @Nullable - public WebChromeClient getWebChromeClient() { - checkThread(); - return mProvider.getWebChromeClient(); - } - - /** - * Sets the Picture listener. This is an interface used to receive - * notifications of a new Picture. - * - * @param listener an implementation of WebView.PictureListener - * @deprecated This method is now obsolete. - */ - @Deprecated - public void setPictureListener(PictureListener listener) { - checkThread(); - mProvider.setPictureListener(listener); - } - - /** - * 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. JavaScript should be enabled before injecting the object. For example: - * <pre> - * class JsObject { - * {@literal @}JavascriptInterface - * public String toString() { return "injectedObject"; } - * } - * webview.getSettings().setJavaScriptEnabled(true); - * 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 apps targeting {@link android.os.Build.VERSION_CODES#JELLY_BEAN} or earlier. - * Apps that target a version later than {@link android.os.Build.VERSION_CODES#JELLY_BEAN} - * are still vulnerable if the app runs on a device running Android earlier than 4.2. - * The most secure way to use this method is to target {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1} - * and to ensure the method is called only when running on Android 4.2 or later. - * With these older versions, 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> - * <li> For applications targeted to API level {@link android.os.Build.VERSION_CODES#LOLLIPOP} - * and above, methods of injected Java objects are enumerable from - * JavaScript.</li> - * </ul> - * - * @param object the Java object to inject into this WebView's JavaScript - * context. {@code null} values are ignored. - * @param name the name used to expose the object in JavaScript - */ - public void addJavascriptInterface(Object object, String name) { - checkThread(); - 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(@NonNull String name) { - checkThread(); - mProvider.removeJavascriptInterface(name); - } - - /** - * Creates a message channel to communicate with JS and returns the message - * ports that represent the endpoints of this message channel. The HTML5 message - * channel functionality is described - * <a href="https://html.spec.whatwg.org/multipage/comms.html#messagechannel">here - * </a> - * - * <p>The returned message channels are entangled and already in started state. - * - * @return the two message ports that form the message channel. - */ - public WebMessagePort[] createWebMessageChannel() { - checkThread(); - return mProvider.createWebMessageChannel(); - } - - /** - * Post a message to main frame. The embedded application can restrict the - * messages to a certain target origin. See - * <a href="https://html.spec.whatwg.org/multipage/comms.html#posting-messages"> - * HTML5 spec</a> for how target origin can be used. - * <p> - * A target origin can be set as a wildcard ("*"). However this is not recommended. - * See the page above for security issues. - * - * @param message the WebMessage - * @param targetOrigin the target origin. - */ - public void postWebMessage(WebMessage message, Uri targetOrigin) { - checkThread(); - mProvider.postMessageToMainFrame(message, targetOrigin); - } - - /** - * 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 {@code false}. - * - * @param enabled whether to enable web contents debugging - */ - public static void setWebContentsDebuggingEnabled(boolean enabled) { - getFactory().getStatics().setWebContentsDebuggingEnabled(enabled); - } - - /** - * Gets the list of currently loaded plugins. - * - * @return the list of currently loaded plugins - * @deprecated This was used for Gears, which has been deprecated. - * @hide - */ - @Deprecated - public static synchronized PluginList getPluginList() { - return new PluginList(); - } - - /** - * @deprecated This was used for Gears, which has been deprecated. - * @hide - */ - @Deprecated - public void refreshPlugins(boolean reloadOpenPages) { - checkThread(); - } - - /** - * Puts this WebView into text selection mode. Do not rely on this - * functionality; it will be deprecated in the future. - * - * @deprecated This method is now obsolete. - * @hide Since API level {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1} - */ - @Deprecated - public void emulateShiftHeld() { - checkThread(); - } - - /** - * @deprecated WebView no longer needs to implement - * ViewGroup.OnHierarchyChangeListener. This method does nothing now. - */ - @Override - // Cannot add @hide as this can always be accessed via the interface. - @Deprecated - public void onChildViewAdded(View parent, View child) {} - - /** - * @deprecated WebView no longer needs to implement - * ViewGroup.OnHierarchyChangeListener. This method does nothing now. - */ - @Override - // Cannot add @hide as this can always be accessed via the interface. - @Deprecated - public void onChildViewRemoved(View p, View child) {} - - /** - * @deprecated WebView should not have implemented - * ViewTreeObserver.OnGlobalFocusChangeListener. This method does nothing now. - */ - @Override - // Cannot add @hide as this can always be accessed via the interface. - @Deprecated - public void onGlobalFocusChanged(View oldFocus, View newFocus) { - } - - /** - * @deprecated Only the default case, {@code true}, will be supported in a future version. - */ - @Deprecated - public void setMapTrackballToArrowKeys(boolean setMap) { - checkThread(); - mProvider.setMapTrackballToArrowKeys(setMap); + public void addJavascriptInterface(Object obj, String interfaceName) { } - - public void flingScroll(int vx, int vy) { - checkThread(); - mProvider.flingScroll(vx, vy); - } - - /** - * Gets the zoom controls for this WebView, as a separate View. The caller - * is responsible for inserting this View into the layout hierarchy. - * <p/> - * API level {@link android.os.Build.VERSION_CODES#CUPCAKE} introduced - * built-in zoom mechanisms for the WebView, as opposed to these separate - * zoom controls. The built-in mechanisms are preferred and can be enabled - * using {@link WebSettings#setBuiltInZoomControls}. - * - * @deprecated the built-in zoom mechanisms are preferred - * @hide Since API level {@link android.os.Build.VERSION_CODES#JELLY_BEAN} - */ - @Deprecated public View getZoomControls() { - checkThread(); - return mProvider.getZoomControls(); + return null; } - /** - * Gets whether this WebView can be zoomed in. - * - * @return {@code true} if this WebView can be zoomed in - * - * @deprecated This method is prone to inaccuracy due to race conditions - * between the web rendering and UI threads; prefer - * {@link WebViewClient#onScaleChanged}. - */ - @Deprecated - public boolean canZoomIn() { - checkThread(); - return mProvider.canZoomIn(); - } - - /** - * Gets whether this WebView can be zoomed out. - * - * @return {@code true} if this WebView can be zoomed out - * - * @deprecated This method is prone to inaccuracy due to race conditions - * between the web rendering and UI threads; prefer - * {@link WebViewClient#onScaleChanged}. - */ - @Deprecated - public boolean canZoomOut() { - checkThread(); - return mProvider.canZoomOut(); - } - - /** - * Performs a zoom operation in this WebView. - * - * @param zoomFactor the zoom factor to apply. The zoom factor will be clamped to the WebView's - * zoom limits. This value must be in the range 0.01 to 100.0 inclusive. - */ - public void zoomBy(float zoomFactor) { - checkThread(); - if (zoomFactor < 0.01) - throw new IllegalArgumentException("zoomFactor must be greater than 0.01."); - if (zoomFactor > 100.0) - throw new IllegalArgumentException("zoomFactor must be less than 100."); - mProvider.zoomBy(zoomFactor); - } - - /** - * Performs zoom in in this WebView. - * - * @return {@code true} if zoom in succeeds, {@code false} if no zoom changes - */ public boolean zoomIn() { - checkThread(); - return mProvider.zoomIn(); + return false; } - /** - * Performs zoom out in this WebView. - * - * @return {@code true} if zoom out succeeds, {@code false} if no zoom changes - */ public boolean zoomOut() { - checkThread(); - return mProvider.zoomOut(); - } - - /** - * @deprecated This method is now obsolete. - * @hide Since API level {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1} - */ - @Deprecated - public void debugDump() { - checkThread(); - } - - /** - * See {@link ViewDebug.HierarchyHandler#dumpViewHierarchyWithProperties(BufferedWriter, int)} - * @hide - */ - @Override - public void dumpViewHierarchyWithProperties(BufferedWriter out, int level) { - mProvider.dumpViewHierarchyWithProperties(out, level); - } - - /** - * See {@link ViewDebug.HierarchyHandler#findHierarchyView(String, int)} - * @hide - */ - @Override - public View findHierarchyView(String className, int hashCode) { - return mProvider.findHierarchyView(className, hashCode); - } - - /** @hide */ - @IntDef({ - RENDERER_PRIORITY_WAIVED, - RENDERER_PRIORITY_BOUND, - RENDERER_PRIORITY_IMPORTANT - }) - @Retention(RetentionPolicy.SOURCE) - public @interface RendererPriority {} - - /** - * The renderer associated with this WebView is bound with - * {@link Context#BIND_WAIVE_PRIORITY}. At this priority level - * {@link WebView} renderers will be strong targets for out of memory - * killing. - * - * Use with {@link #setRendererPriorityPolicy}. - */ - public static final int RENDERER_PRIORITY_WAIVED = 0; - /** - * The renderer associated with this WebView is bound with - * the default priority for services. - * - * Use with {@link #setRendererPriorityPolicy}. - */ - public static final int RENDERER_PRIORITY_BOUND = 1; - /** - * The renderer associated with this WebView is bound with - * {@link Context#BIND_IMPORTANT}. - * - * Use with {@link #setRendererPriorityPolicy}. - */ - public static final int RENDERER_PRIORITY_IMPORTANT = 2; - - /** - * Set the renderer priority policy for this {@link WebView}. The - * priority policy will be used to determine whether an out of - * process renderer should be considered to be a target for OOM - * killing. - * - * Because a renderer can be associated with more than one - * WebView, the final priority it is computed as the maximum of - * any attached WebViews. When a WebView is destroyed it will - * cease to be considerered when calculating the renderer - * priority. Once no WebViews remain associated with the renderer, - * the priority of the renderer will be reduced to - * {@link #RENDERER_PRIORITY_WAIVED}. - * - * The default policy is to set the priority to - * {@link #RENDERER_PRIORITY_IMPORTANT} regardless of visibility, - * and this should not be changed unless the caller also handles - * renderer crashes with - * {@link WebViewClient#onRenderProcessGone}. Any other setting - * will result in WebView renderers being killed by the system - * more aggressively than the application. - * - * @param rendererRequestedPriority the minimum priority at which - * this WebView desires the renderer process to be bound. - * @param waivedWhenNotVisible if {@code true}, this flag specifies that - * when this WebView is not visible, it will be treated as - * if it had requested a priority of - * {@link #RENDERER_PRIORITY_WAIVED}. - */ - public void setRendererPriorityPolicy( - @RendererPriority int rendererRequestedPriority, - boolean waivedWhenNotVisible) { - mProvider.setRendererPriorityPolicy(rendererRequestedPriority, waivedWhenNotVisible); - } - - /** - * Get the requested renderer priority for this WebView. - * - * @return the requested renderer priority policy. - */ - @RendererPriority - public int getRendererRequestedPriority() { - return mProvider.getRendererRequestedPriority(); - } - - /** - * Return whether this WebView requests a priority of - * {@link #RENDERER_PRIORITY_WAIVED} when not visible. - * - * @return whether this WebView requests a priority of - * {@link #RENDERER_PRIORITY_WAIVED} when not visible. - */ - public boolean getRendererPriorityWaivedWhenNotVisible() { - return mProvider.getRendererPriorityWaivedWhenNotVisible(); - } - - /** - * Sets the {@link TextClassifier} for this WebView. - */ - public void setTextClassifier(@Nullable TextClassifier textClassifier) { - mProvider.setTextClassifier(textClassifier); - } - - /** - * Returns the {@link TextClassifier} used by this WebView. - * If no TextClassifier has been set, this WebView uses the default set by the system. - */ - @NonNull - public TextClassifier getTextClassifier() { - return mProvider.getTextClassifier(); - } - - //------------------------------------------------------------------------- - // Interface for WebView providers - //------------------------------------------------------------------------- - - /** - * Gets the WebViewProvider. Used by providers to obtain the underlying - * implementation, e.g. when the application responds to - * WebViewClient.onCreateWindow() request. - * - * @hide WebViewProvider is not public API. - */ - @SystemApi - 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 - */ - @SystemApi - 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.performAccessibilityActionInternal(action, arguments); - } - - public boolean super_performLongClick() { - return WebView.super.performLongClick(); - } - - public boolean super_setFrame(int left, int top, int right, int bottom) { - 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); - } - - public void super_startActivityForResult(Intent intent, int requestCode) { - WebView.super.startActivityForResult(intent, requestCode); - } - - // ---- 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() { - return WebView.this.getVerticalScrollFactor(); - } - - public float getHorizontalScrollFactor() { - 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) { - 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.mScrollX = scrollX; - } - - /** Raw setter for the scroll Y value, without invoking onScrollChanged handlers etc. */ - public void setScrollYRaw(int scrollY) { - WebView.this.mScrollY = 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 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 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)); - StrictMode.onWebViewMethodCalledOnWrongThread(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(); - } - - /** @hide */ - @Override - protected void onDetachedFromWindowInternal() { - mProvider.getViewDelegate().onDetachedFromWindow(); - super.onDetachedFromWindowInternal(); - } - - /** @hide */ - @Override - public void onMovedToDisplay(int displayId, Configuration config) { - mProvider.getViewDelegate().onMovedToDisplay(displayId, config); - } - - @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; - } - - @Deprecated - @Override - public boolean shouldDelayChildPressedState() { - return mProvider.getViewDelegate().shouldDelayChildPressedState(); - } - - @Override - public CharSequence getAccessibilityClassName() { - return WebView.class.getName(); - } - - @Override - public void onProvideVirtualStructure(ViewStructure structure) { - mProvider.getViewDelegate().onProvideVirtualStructure(structure); - } - - /** - * {@inheritDoc} - * - * <p>The {@link ViewStructure} traditionally represents a {@link View}, while for web pages - * it represent HTML nodes. Hence, it's necessary to "map" the HTML properties in a way that is - * understood by the {@link android.service.autofill.AutofillService} implementations: - * - * <ol> - * <li>Only the HTML nodes inside a {@code FORM} are generated. - * <li>The source of the HTML is set using {@link ViewStructure#setWebDomain(String)} in the - * node representing the WebView. - * <li>If a web page has multiple {@code FORM}s, only the data for the current form is - * represented—if the user taps a field from another form, then the current autofill - * context is canceled (by calling {@link android.view.autofill.AutofillManager#cancel()} and - * a new context is created for that {@code FORM}. - * <li>Similarly, if the page has {@code IFRAME} nodes, they are not initially represented in - * the view structure until the user taps a field from a {@code FORM} inside the - * {@code IFRAME}, in which case it would be treated the same way as multiple forms described - * above, except that the {@link ViewStructure#setWebDomain(String) web domain} of the - * {@code FORM} contains the {@code src} attribute from the {@code IFRAME} node. - * <li>The W3C autofill field ({@code autocomplete} tag attribute) maps to - * {@link ViewStructure#setAutofillHints(String[])}. - * <li>If the view is editable, the {@link ViewStructure#setAutofillType(int)} and - * {@link ViewStructure#setAutofillValue(AutofillValue)} must be set. - * <li>The {@code placeholder} attribute maps to {@link ViewStructure#setHint(CharSequence)}. - * <li>Other HTML attributes can be represented through - * {@link ViewStructure#setHtmlInfo(android.view.ViewStructure.HtmlInfo)}. - * </ol> - * - * <p>If the WebView implementation can determine that the value of a field was set statically - * (for example, not through Javascript), it should also call - * {@code structure.setDataIsSensitive(false)}. - * - * <p>For example, an HTML form with 2 fields for username and password: - * - * <pre class="prettyprint"> - * <label>Username:</label> - * <input type="text" name="username" id="user" value="Type your username" autocomplete="username" placeholder="Email or username"> - * <label>Password:</label> - * <input type="password" name="password" id="pass" autocomplete="current-password" placeholder="Password"> - * </pre> - * - * <p>Would map to: - * - * <pre class="prettyprint"> - * int index = structure.addChildCount(2); - * ViewStructure username = structure.newChild(index); - * username.setAutofillId(structure.getAutofillId(), 1); // id 1 - first child - * username.setAutofillHints("username"); - * username.setHtmlInfo(username.newHtmlInfoBuilder("input") - * .addAttribute("type", "text") - * .addAttribute("name", "username") - * .addAttribute("label", "Username:") - * .build()); - * username.setHint("Email or username"); - * username.setAutofillType(View.AUTOFILL_TYPE_TEXT); - * username.setAutofillValue(AutofillValue.forText("Type your username")); - * // Value of the field is not sensitive because it was created statically and not changed. - * username.setDataIsSensitive(false); - * - * ViewStructure password = structure.newChild(index + 1); - * username.setAutofillId(structure, 2); // id 2 - second child - * password.setAutofillHints("current-password"); - * password.setHtmlInfo(password.newHtmlInfoBuilder("input") - * .addAttribute("type", "password") - * .addAttribute("name", "password") - * .addAttribute("label", "Password:") - * .build()); - * password.setHint("Password"); - * password.setAutofillType(View.AUTOFILL_TYPE_TEXT); - * </pre> - */ - @Override - public void onProvideAutofillVirtualStructure(ViewStructure structure, int flags) { - mProvider.getViewDelegate().onProvideAutofillVirtualStructure(structure, flags); - } - - @Override - public void autofill(SparseArray<AutofillValue>values) { - mProvider.getViewDelegate().autofill(values); - } - - /** @hide */ - @Override - public void onInitializeAccessibilityNodeInfoInternal(AccessibilityNodeInfo info) { - super.onInitializeAccessibilityNodeInfoInternal(info); - mProvider.getViewDelegate().onInitializeAccessibilityNodeInfo(info); - } - - /** @hide */ - @Override - public void onInitializeAccessibilityEventInternal(AccessibilityEvent event) { - super.onInitializeAccessibilityEventInternal(event); - mProvider.getViewDelegate().onInitializeAccessibilityEvent(event); - } - - /** @hide */ - @Override - public boolean performAccessibilityActionInternal(int action, Bundle arguments) { - return mProvider.getViewDelegate().performAccessibilityAction(action, arguments); - } - - /** @hide */ - @Override - protected void onDrawVerticalScrollBar(Canvas canvas, Drawable scrollBar, - int l, int t, int r, int b) { - mProvider.getViewDelegate().onDrawVerticalScrollBar(canvas, scrollBar, l, t, r, b); - } - - @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); - } - - /** - * Creates a new InputConnection for an InputMethod to interact with the WebView. - * This is similar to {@link View#onCreateInputConnection} but note that WebView - * calls InputConnection methods on a thread other than the UI thread. - * If these methods are overridden, then the overriding methods should respect - * thread restrictions when calling View methods or accessing data. - */ - @Override - public InputConnection onCreateInputConnection(EditorInfo outAttrs) { - return mProvider.getViewDelegate().onCreateInputConnection(outAttrs); - } - - @Override - public boolean onDragEvent(DragEvent event) { - return mProvider.getViewDelegate().onDragEvent(event); - } - - @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); - } - - /** @hide */ - @Override - protected boolean setFrame(int left, int top, int right, int bottom) { - return mProvider.getViewDelegate().setFrame(left, top, right, bottom); - } - - @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); - } - - @Override - public void onStartTemporaryDetach() { - super.onStartTemporaryDetach(); - mProvider.getViewDelegate().onStartTemporaryDetach(); - } - - @Override - public void onFinishTemporaryDetach() { - super.onFinishTemporaryDetach(); - mProvider.getViewDelegate().onFinishTemporaryDetach(); - } - - @Override - public Handler getHandler() { - return mProvider.getViewDelegate().getHandler(super.getHandler()); - } - - @Override - public View findFocus() { - return mProvider.getViewDelegate().findFocus(super.findFocus()); - } - - /** - * If WebView has already been loaded into the current process this method will return the - * package that was used to load it. Otherwise, the package that would be used if the WebView - * was loaded right now will be returned; this does not cause WebView to be loaded, so this - * information may become outdated at any time. - * The WebView package changes either when the current WebView package is updated, disabled, or - * uninstalled. It can also be changed through a Developer Setting. - * If the WebView package changes, any app process that has loaded WebView will be killed. The - * next time the app starts and loads WebView it will use the new WebView package instead. - * @return the current WebView package, or {@code null} if there is none. - */ - @Nullable - public static PackageInfo getCurrentWebViewPackage() { - PackageInfo webviewPackage = WebViewFactory.getLoadedPackageInfo(); - if (webviewPackage != null) { - return webviewPackage; - } - - IWebViewUpdateService service = WebViewFactory.getUpdateService(); - if (service == null) { - return null; - } - try { - return service.getCurrentWebViewPackage(); - } catch (RemoteException e) { - throw e.rethrowFromSystemServer(); - } - } - - /** - * Receive the result from a previous call to {@link #startActivityForResult(Intent, int)}. - * - * @param requestCode The integer request code originally supplied to - * startActivityForResult(), allowing you to identify who this - * result came from. - * @param resultCode The integer result code returned by the child activity - * through its setResult(). - * @param data An Intent, which can return result data to the caller - * (various data can be attached to Intent "extras"). - * @hide - */ - @Override - public void onActivityResult(int requestCode, int resultCode, Intent data) { - mProvider.getViewDelegate().onActivityResult(requestCode, resultCode, data); - } - - /** @hide */ - @Override - protected void encodeProperties(@NonNull ViewHierarchyEncoder encoder) { - super.encodeProperties(encoder); - - checkThread(); - encoder.addProperty("webview:contentHeight", mProvider.getContentHeight()); - encoder.addProperty("webview:contentWidth", mProvider.getContentWidth()); - encoder.addProperty("webview:scale", mProvider.getScale()); - encoder.addProperty("webview:title", mProvider.getTitle()); - encoder.addProperty("webview:url", mProvider.getUrl()); - encoder.addProperty("webview:originalUrl", mProvider.getOriginalUrl()); + return false; } } |