diff options
Diffstat (limited to 'android/webkit')
| -rw-r--r-- | android/webkit/FindAddress.java | 27 | ||||
| -rw-r--r-- | android/webkit/TracingConfig.java | 97 | ||||
| -rw-r--r-- | android/webkit/TracingController.java | 29 | ||||
| -rw-r--r-- | android/webkit/WebView.java | 3013 |
4 files changed, 3051 insertions, 115 deletions
diff --git a/android/webkit/FindAddress.java b/android/webkit/FindAddress.java index 31b24273..9183227b 100644 --- a/android/webkit/FindAddress.java +++ b/android/webkit/FindAddress.java @@ -429,20 +429,21 @@ class FindAddress { // At this point we've matched a state; try to match a zip code after it. Matcher zipMatcher = sWordRe.matcher(content); - if (zipMatcher.find(stateMatch.end()) - && isValidZipCode(zipMatcher.group(0), stateMatch)) { - return zipMatcher.end(); + if (zipMatcher.find(stateMatch.end())) { + if (isValidZipCode(zipMatcher.group(0), stateMatch)) { + return zipMatcher.end(); + } + } else { + // The content ends with a state but no zip + // code. This is a legal match according to the + // documentation. N.B. This is equivalent to the + // original c++ implementation, which only allowed + // the zip code to be optional at the end of the + // string, which presumably is a bug. We tried + // relaxing this to work in other places but it + // caused too many false positives. + nonZipMatch = stateMatch.end(); } - // The content ends with a state but no zip - // code. This is a legal match according to the - // documentation. N.B. This differs from the - // original c++ implementation, which only allowed - // the zip code to be optional at the end of the - // string, which presumably is a bug. Now we - // prefer to find a match with a zip code, but - // remember non-zip matches and return them if - // necessary. - nonZipMatch = stateMatch.end(); } } } diff --git a/android/webkit/TracingConfig.java b/android/webkit/TracingConfig.java index d95ca61d..20801684 100644 --- a/android/webkit/TracingConfig.java +++ b/android/webkit/TracingConfig.java @@ -54,37 +54,37 @@ public class TracingConfig { /** * Predefined set of categories typically useful for analyzing WebViews. - * Typically includes android_webview and Java. + * Typically includes "android_webview" and "Java" categories. */ public static final int CATEGORIES_ANDROID_WEBVIEW = 1 << 1; /** * Predefined set of categories typically useful for web developers. - * Typically includes blink, compositor, renderer.scheduler and v8 categories. + * Typically includes "blink", "compositor", "renderer.scheduler" and "v8" categories. */ public static final int CATEGORIES_WEB_DEVELOPER = 1 << 2; /** * Predefined set of categories for analyzing input latency issues. - * Typically includes input, renderer.scheduler categories. + * Typically includes "input", "renderer.scheduler" categories. */ public static final int CATEGORIES_INPUT_LATENCY = 1 << 3; /** * Predefined set of categories for analyzing rendering issues. - * Typically includes blink, compositor and gpu categories. + * Typically includes "blink", "compositor" and "gpu" categories. */ public static final int CATEGORIES_RENDERING = 1 << 4; /** * Predefined set of categories for analyzing javascript and rendering issues. - * Typically includes blink, compositor, gpu, renderer.scheduler and v8 categories. + * Typically includes "blink", "compositor", "gpu", "renderer.scheduler" and "v8" categories. */ public static final int CATEGORIES_JAVASCRIPT_AND_RENDERING = 1 << 5; /** * Predefined set of categories for studying difficult rendering performance problems. - * Typically includes blink, compositor, gpu, renderer.scheduler, v8 and + * Typically includes "blink", "compositor", "gpu", "renderer.scheduler", "v8" and * some other compositor categories which are disabled by default. */ public static final int CATEGORIES_FRAME_VIEWER = 1 << 6; @@ -123,7 +123,9 @@ public class TracingConfig { } /** - * Returns a bitmask of the predefined categories values of this configuration. + * Returns a bitmask of the predefined category sets of this configuration. + * + * @return Bitmask of predefined category sets. */ @PredefinedCategories public int getPredefinedCategories() { @@ -133,7 +135,7 @@ public class TracingConfig { /** * Returns the list of included custom category patterns for this configuration. * - * @return empty list if no custom category patterns are specified. + * @return Empty list if no custom category patterns are specified. */ @NonNull public List<String> getCustomIncludedCategories() { @@ -142,6 +144,8 @@ public class TracingConfig { /** * Returns the tracing mode of this configuration. + * + * @return The tracing mode of this configuration. */ @TracingMode public int getTracingMode() { @@ -150,28 +154,37 @@ public class TracingConfig { /** * Builder used to create {@link TracingConfig} objects. - * + * <p> * Examples: - * new TracingConfig.Builder().build() - * -- creates a configuration with default options: {@link #CATEGORIES_NONE}, - * {@link #RECORD_UNTIL_FULL}. - * new TracingConfig.Builder().addCategories(CATEGORIES_WEB_DEVELOPER).build() - * -- records trace events from the "web developer" predefined category sets. - * new TracingConfig.Builder().addCategories(CATEGORIES_RENDERING, - * CATEGORIES_INPUT_LATENCY).build() - * -- records trace events from the "rendering" and "input latency" predefined - * category sets. - * new TracingConfig.Builder().addCategories("browser").build() - * -- records only the trace events from the "browser" category. - * new TracingConfig.Builder().addCategories("blink*","renderer*").build() - * -- records only the trace events matching the "blink*" and "renderer*" patterns - * (e.g. "blink.animations", "renderer_host" and "renderer.scheduler" categories). - * new TracingConfig.Builder().addCategories(CATEGORIES_WEB_DEVELOPER) + * <pre class="prettyprint"> + * // Create a configuration with default options: {@link #CATEGORIES_NONE}, + * // {@link #RECORD_CONTINUOUSLY}. + * <code>new TracingConfig.Builder().build()</code> + * + * // Record trace events from the "web developer" predefined category sets. + * // Uses a ring buffer (the default {@link #RECORD_CONTINUOUSLY} mode) for + * // internal storage during tracing. + * <code>new TracingConfig.Builder().addCategories(CATEGORIES_WEB_DEVELOPER).build()</code> + * + * // Record trace events from the "rendering" and "input latency" predefined + * // category sets. + * <code>new TracingConfig.Builder().addCategories(CATEGORIES_RENDERING, + * CATEGORIES_INPUT_LATENCY).build()</code> + * + * // Record only the trace events from the "browser" category. + * <code>new TracingConfig.Builder().addCategories("browser").build()</code> + * + * // Record only the trace events matching the "blink*" and "renderer*" patterns + * // (e.g. "blink.animations", "renderer_host" and "renderer.scheduler" categories). + * <code>new TracingConfig.Builder().addCategories("blink*","renderer*").build()</code> + * + * // Record events from the "web developer" predefined category set and events from + * // the "disabled-by-default-v8.gc" category to understand where garbage collection + * // is being triggered. Uses a limited size buffer for internal storage during tracing. + * <code>new TracingConfig.Builder().addCategories(CATEGORIES_WEB_DEVELOPER) * .addCategories("disabled-by-default-v8.gc") - * .setTracingMode(RECORD_CONTINUOUSLY).build() - * -- records events from the "web developer" predefined category set and events from - * the "disabled-by-default-v8.gc" category to understand where garbage collection - * is being triggered. Uses a ring buffer for internal storage during tracing. + * .setTracingMode(RECORD_UNTIL_FULL).build()</code> + * </pre> */ public static class Builder { private @PredefinedCategories int mPredefinedCategories = CATEGORIES_NONE; @@ -185,6 +198,8 @@ public class TracingConfig { /** * Build {@link TracingConfig} using the current settings. + * + * @return The {@link TracingConfig} with the current settings. */ public TracingConfig build() { return new TracingConfig(mPredefinedCategories, mCustomIncludedCategories, @@ -192,16 +207,15 @@ public class TracingConfig { } /** - * Adds categories from a predefined set of categories to be included in the trace output. + * Adds predefined sets of categories to be included in the trace output. + * + * A predefined category set can be one of {@link #CATEGORIES_NONE}, + * {@link #CATEGORIES_ALL}, {@link #CATEGORIES_ANDROID_WEBVIEW}, + * {@link #CATEGORIES_WEB_DEVELOPER}, {@link #CATEGORIES_INPUT_LATENCY}, + * {@link #CATEGORIES_RENDERING}, {@link #CATEGORIES_JAVASCRIPT_AND_RENDERING} or + * {@link #CATEGORIES_FRAME_VIEWER}. * - * @param predefinedCategories list or bitmask of predefined category sets to use: - * {@link #CATEGORIES_NONE}, {@link #CATEGORIES_ALL}, - * {@link #CATEGORIES_ANDROID_WEBVIEW}, - * {@link #CATEGORIES_WEB_DEVELOPER}, - * {@link #CATEGORIES_INPUT_LATENCY}, - * {@link #CATEGORIES_RENDERING}, - * {@link #CATEGORIES_JAVASCRIPT_AND_RENDERING} or - * {@link #CATEGORIES_FRAME_VIEWER}. + * @param predefinedCategories A list or bitmask of predefined category sets. * @return The builder to facilitate chaining. */ public Builder addCategories(@PredefinedCategories int... predefinedCategories) { @@ -215,11 +229,11 @@ public class TracingConfig { * Adds custom categories to be included in trace output. * * Note that the categories are defined by the currently-in-use version of WebView. They - * live in chromium code and are not part of the Android API. See + * live in chromium code and are not part of the Android API. * See <a href="https://www.chromium.org/developers/how-tos/trace-event-profiling-tool"> * chromium documentation on tracing</a> for more details. * - * @param categories a list of category patterns. A category pattern can contain wilcards, + * @param categories A list of category patterns. A category pattern can contain wildcards, * e.g. "blink*" or full category name e.g. "renderer.scheduler". * @return The builder to facilitate chaining. */ @@ -235,7 +249,7 @@ public class TracingConfig { * * Same as {@link #addCategories(String...)} but allows to pass a Collection as a parameter. * - * @param categories a list of category patters. + * @param categories A list of category patterns. * @return The builder to facilitate chaining. */ public Builder addCategories(Collection<String> categories) { @@ -245,8 +259,9 @@ public class TracingConfig { /** * Sets the tracing mode for this configuration. + * When tracingMode is not set explicitly, the default is {@link #RECORD_CONTINUOUSLY}. * - * @param tracingMode tracing mode to use, one of {@link #RECORD_UNTIL_FULL} or + * @param tracingMode The tracing mode to use, one of {@link #RECORD_UNTIL_FULL} or * {@link #RECORD_CONTINUOUSLY}. * @return The builder to facilitate chaining. */ diff --git a/android/webkit/TracingController.java b/android/webkit/TracingController.java index 50068f5a..05c0304e 100644 --- a/android/webkit/TracingController.java +++ b/android/webkit/TracingController.java @@ -35,9 +35,9 @@ import java.util.concurrent.Executor; * Example usage: * <pre class="prettyprint"> * TracingController tracingController = TracingController.getInstance(); - * tracingController.start(new TraceConfig.Builder() + * tracingController.start(new TracingConfig.Builder() * .addCategories(CATEGORIES_WEB_DEVELOPER).build()); - * [..] + * ... * tracingController.stop(new FileOutputStream("trace.json"), * Executors.newSingleThreadExecutor()); * </pre></p> @@ -49,7 +49,7 @@ public abstract class TracingController { * only one TracingController instance for all WebView instances, * however this restriction may be relaxed in a future Android release. * - * @return the default TracingController instance + * @return The default TracingController instance. */ @NonNull public static TracingController getInstance() { @@ -65,8 +65,10 @@ public abstract class TracingController { * using an internal buffer and flushed to the outputStream when * {@link #stop(OutputStream, Executor)} is called. * - * @param tracingConfig configuration options to use for tracing - * @throws IllegalStateException if the system is already tracing. + * @param tracingConfig Configuration options to use for tracing. + * @throws IllegalStateException If the system is already tracing. + * @throws IllegalArgumentException If the configuration is invalid (e.g. + * invalid category pattern or invalid tracing mode). */ public abstract void start(@NonNull TracingConfig tracingConfig); @@ -77,17 +79,22 @@ public abstract class TracingController { * in chunks by invoking {@link java.io.OutputStream#write(byte[])}. On completion * the {@link java.io.OutputStream#close()} method is called. * - * @param outputStream the output steam the tracing data will be sent to. If null + * @param outputStream The output stream the tracing data will be sent to. If null * the tracing data will be discarded. - * @param executor the {@link java.util.concurrent.Executor} on which the - * outputStream #write and #close methods will be invoked. - * @return false if the system was not tracing at the time of the call, true - * otherwise. + * @param executor The {@link java.util.concurrent.Executor} on which the + * outputStream {@link java.io.OutputStream#write(byte[])} and + * {@link java.io.OutputStream#close()} methods will be invoked. + * @return False if the WebView framework was not tracing at the time of the call, + * true otherwise. */ public abstract boolean stop(@Nullable OutputStream outputStream, @NonNull @CallbackExecutor Executor executor); - /** True if the system is tracing */ + /** + * Returns whether the WebView framework is tracing. + * + * @return True if tracing is enabled. + */ public abstract boolean isTracing(); } diff --git a/android/webkit/WebView.java b/android/webkit/WebView.java index 202f2046..10748acd 100644 --- a/android/webkit/WebView.java +++ b/android/webkit/WebView.java @@ -1,5 +1,5 @@ /* - * Copyright (C) 2008 The Android Open Source Project + * Copyright (C) 2006 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. @@ -16,223 +16,3136 @@ package android.webkit; -import com.android.layoutlib.bridge.MockView; - +import android.annotation.IntDef; +import android.annotation.NonNull; +import android.annotation.Nullable; +import android.annotation.SystemApi; +import android.annotation.Widget; 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; /** - * 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. + * <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 {@link #loadData(String,String,String)} and {@link + * #loadDataWithBaseURL(String,String,String,String,String)} for more info. + * // Also see {@link #loadData(String,String,String)} for information on encoding special + * // characters. + * </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 ratio 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> + * With Safe Browsing, 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> + * Safe Browsing is enabled by default on devices which support it. If your app needs to disable + * Safe Browsing for all WebViews, it can do so in the manifest's {@code <application>} element: + * <p> + * <pre> + * <manifest> + * <application> + * ... + * <meta-data android:name="android.webkit.WebView.EnableSafeBrowsing" + * android:value="false" /> + * </application> + * </manifest> + * </pre> + * + * <p> + * Otherwise, see {@link WebSettings#setSafeBrowsingEnabled}. * */ -public class WebView extends MockView { +// 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; + + /** + * 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="; /** - * Construct a new WebView with a Context object. - * @param context A Context object used to access application assets. + * 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 */ public WebView(Context context) { this(context, null); } /** - * 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. + * Constructs a new WebView with layout parameters. + * + * @param context an Activity Context 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); } /** - * 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. + * 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. + */ + public WebView(Context context, AttributeSet attrs, int defStyleAttr) { + this(context, attrs, defStyleAttr, 0); + } + + /** + * 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 defStyle) { - super(context, attrs, defStyle); + public WebView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { + this(context, attrs, defStyleAttr, defStyleRes, null, false); } - - // START FAKE PUBLIC METHODS - + + /** + * 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"); + } + if (mWebViewThread == null) { + throw new RuntimeException( + "WebView cannot be initialized on a thread that has no Looper."); + } + 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 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() { - return false; + // The old implementation defaulted to true, so return true for consistency + return true; } + /** + * 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) { - return null; + checkThread(); + return mProvider.getHttpAuthUsernamePassword(host, realm); } + /** + * Destroys the internal state of this WebView. This method should be called + * after this WebView has been removed from the view system. No other + * methods may be called on this WebView after destroy. + */ public void destroy() { + checkThread(); + 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); + } } - public void loadData(String data, String mimeType, String encoding) { + /** + * 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 {@code 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'. HTML can be encoded with {@link + * android.util.Base64#encodeToString(byte[],int)} like so: + * <pre> + * String unencodedHtml = + * "<html><body>'%28' is the code for '('</body></html>"; + * String encodedHtml = Base64.encodeToString(unencodedHtml.getBytes(), Base64.NO_PADDING); + * webView.loadData(encodedHtml, "text/html", "base64"); + * </pre> + * <p> + * For all other values of {@code encoding} (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. See <a + * href="https://tools.ietf.org/html/rfc3986#section-2.2">RFC 3986</a> for more information. + * <p> + * The {@code mimeType} parameter specifies the format of the data. + * If WebView can't handle the specified MIME type, it will download the data. + * If {@code null}, defaults to 'text/html'. + * <p> + * The 'data' scheme URL formed by this method uses the default US-ASCII + * charset. If you need need to set a different charset, you should form a + * 'data' scheme URL which explicitly specifies a charset parameter in the + * mediatype portion of the URL and call {@link #loadUrl(String)} instead. + * Note that the charset obtained from the mediatype portion of a data URL + * always overrides that specified in the HTML or XML document itself. + * + * @param data a String of data in the given encoding + * @param mimeType the MIME type of the data, e.g. 'text/html'. + * @param encoding the encoding of the data + */ + public void loadData(String data, @Nullable String mimeType, @Nullable String encoding) { + checkThread(); + mProvider.loadData(data, mimeType, encoding); } - public void loadDataWithBaseURL(String baseUrl, String data, - String mimeType, String encoding, String failUrl) { + /** + * 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> + * The {@code mimeType} parameter specifies the format of the data. + * If WebView can't handle the specified MIME type, it will download the data. + * If {@code null}, defaults to 'text/html'. + * <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 MIME type of the data, e.g. '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); } + /** + * 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() { - return false; + checkThread(); + return mProvider.canGoBack(); } + /** + * 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() { - return false; + checkThread(); + return mProvider.canGoForward(); } + /** + * 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) { - return false; + checkThread(); + return mProvider.canGoBackOrForward(steps); } + /** + * Goes to the history item that is the number of steps away from + * the current item. Steps is negative if backward and positive + * if forward. + * + * @param steps the number of steps to take back or forward in the back + * forward list + */ public void goBackOrForward(int steps) { + checkThread(); + 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) { - return false; + checkThread(); + return mProvider.pageUp(top); } - + + /** + * 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) { - return false; + 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); + } + + /** + * 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() { - return null; + 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"); + } + + /** + * 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() { - return 0; + checkThread(); + return mProvider.getScale(); } + /** + * 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(); } - public void requestFocusNodeHref(Message hrefMsg) { + /** + * 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); + } + + /** + * 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() { - return null; + checkThread(); + return mProvider.getUrl(); } + /** + * Gets the original URL for the current page. This is not always the same + * as the URL passed to WebViewClient.onPageStarted because although the + * load for that URL has begun, the current page may not have changed. + * Also, there may have been redirects resulting in a different URL to that + * originally requested. + * + * @return the URL that was originally requested for the current page + */ + @ViewDebug.ExportedProperty(category = "webview") + public String getOriginalUrl() { + checkThread(); + return mProvider.getOriginalUrl(); + } + + /** + * Gets the title for the current page. This is the title of the current page + * until WebViewClient.onReceivedTitle is called. + * + * @return the title for the current page + */ + @ViewDebug.ExportedProperty(category = "webview") public String getTitle() { - return null; + checkThread(); + return mProvider.getTitle(); } + /** + * Gets the favicon for the current page. This is the favicon of the current + * page until WebViewClient.onReceivedIcon is called. + * + * @return the favicon for the current page + */ public Bitmap getFavicon() { - return null; + checkThread(); + return mProvider.getFavicon(); + } + + /** + * 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() { - return 0; + checkThread(); + return mProvider.getProgress(); } - + + /** + * Gets the height of the HTML content. + * + * @return the height of the HTML content + */ + @ViewDebug.ExportedProperty(category = "webview") public int getContentHeight() { - return 0; + checkThread(); + return mProvider.getContentHeight(); + } + + /** + * Gets the width of the HTML content. + * + * @return the width of the HTML content + * @hide + */ + @ViewDebug.ExportedProperty(category = "webview") + public int getContentWidth() { + return mProvider.getContentWidth(); } + /** + * Pauses all layout, parsing, and JavaScript timers for all WebViews. This + * is a global requests, not restricted to just this WebView. This can be + * useful if the application has been paused. + */ public void pauseTimers() { + checkThread(); + mProvider.pauseTimers(); } + /** + * Resumes all layout, parsing, and JavaScript timers for all WebViews. + * This will resume dispatching all timers. + */ public void resumeTimers() { + checkThread(); + mProvider.resumeTimers(); } - public void clearCache() { + /** + * 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); + } + + /** + * 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 should not be called if Safe Browsing has been disabled by 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(@NonNull Context context, + @Nullable ValueCallback<Boolean> callback) { + getFactory().getStatics().initSafeBrowsing(context, callback); + } + + /** + * Sets the list of hosts (domain names/IP addresses) 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. + * <p> + * The correct syntax for hosts is defined by <a + * href="https://tools.ietf.org/html/rfc3986#section-3.2.2">RFC 3986</a>. + * + * @param hosts the list of hosts + * @param callback will be called with {@code true} if hosts are successfully added to the + * whitelist. It will be called with {@code false} if any hosts are malformed. The callback + * will be run on the UI thread + */ + public static void setSafeBrowsingWhitelist(@NonNull List<String> hosts, + @Nullable ValueCallback<Boolean> callback) { + getFactory().getStatics().setSafeBrowsingWhitelist(hosts, 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} + * @deprecated this method is superseded by {@link TextClassifier#generateLinks( + * android.view.textclassifier.TextLinks.Request)}. Avoid using this method even when targeting + * API levels where no alternative is available. + */ + @Nullable + @Deprecated public static String findAddress(String addr) { - return null; + if (addr == null) { + throw new NullPointerException("addr is null"); + } + return FindAddress.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(); + } + + /** + * 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(); + } + + /** + * Define the directory used to store WebView data for the current process. + * The provided suffix will be used when constructing data and cache + * directory paths. If this API is not called, no suffix will be used. + * Each directory can be used by only one process in the application. If more + * than one process in an app wishes to use WebView, only one process can use + * the default directory, and other processes must call this API to define + * a unique suffix. + * <p> + * This means that different processes in the same application cannot directly + * share WebView-related data, since the data directories must be distinct. + * Applications that use this API may have to explicitly pass data between + * processes. For example, login cookies may have to be copied from one + * process's cookie jar to the other using {@link CookieManager} if both + * processes' WebViews are intended to be logged in. + * <p> + * Most applications should simply ensure that all components of the app + * that rely on WebView are in the same process, to avoid needing multiple + * data directories. The {@link #disableWebView} method can be used to ensure + * that the other processes do not use WebView by accident in this case. + * <p> + * This API must be called before any instances of WebView are created in + * this process and before any other methods in the android.webkit package + * are called by this process. + * + * @param suffix The directory name suffix to be used for the current + * process. Must not contain a path separator. + * @throws IllegalStateException if WebView has already been initialized + * in the current process. + * @throws IllegalArgumentException if the suffix contains a path separator. + */ + public static void setDataDirectorySuffix(String suffix) { + WebViewFactory.setDataDirectorySuffix(suffix); } - public void addJavascriptInterface(Object obj, String interfaceName) { + /** + * Indicate that the current process does not intend to use WebView, and + * that an exception should be thrown if a WebView is created or any other + * methods in the android.webkit package are used. + * <p> + * Applications with multiple processes may wish to call this in processes + * that are not intended to use WebView to avoid accidentally incurring + * the memory usage of initializing WebView in long-lived processes that + * have no need for it, and to prevent potential data directory conflicts + * (see {@link #setDataDirectorySuffix}). + * <p> + * For example, an audio player application with one process for its + * activities and another process for its playback service may wish to call + * this method in the playback service's {@link android.app.Service#onCreate}. + * + * @throws IllegalStateException if WebView has already been initialized + * in the current process. + */ + public static void disableWebView() { + WebViewFactory.disableWebView(); } + + /** + * @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 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() { - return null; + checkThread(); + return mProvider.getZoomControls(); + } + + /** + * 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() { - return false; + checkThread(); + return mProvider.zoomIn(); } + /** + * Performs zoom out in this WebView. + * + * @return {@code true} if zoom out succeeds, {@code false} if no zoom changes + */ public boolean zoomOut() { - return false; + 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(prefix = { "RENDERER_PRIORITY_" }, value = { + 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(); + } + + /** + * Returns the {@link ClassLoader} used to load internal WebView classes. + * This method is meant for use by the WebView Support Library, there is no reason to use this + * method otherwise. + */ + @NonNull + public static ClassLoader getWebViewClassLoader() { + return getFactory().getWebViewClassLoader(); + } + + /** + * Returns the {@link Looper} corresponding to the thread on which WebView calls must be made. + */ + @NonNull + public Looper getWebViewLooper() { + return mWebViewThread; + } + + //------------------------------------------------------------------------- + // 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); + } + + @Override + public boolean isVisibleToUserForAutofill(int virtualId) { + return mProvider.getViewDelegate().isVisibleToUserForAutofill(virtualId); + } + + /** @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); + } + + @Override + public boolean onCheckIsTextEditor() { + return mProvider.getViewDelegate().onCheckIsTextEditor(); + } + + /** @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()); } } |