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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
package org.chromium.android_webview;
import org.chromium.content.browser.WebContentsObserver;
import org.chromium.content_public.browser.WebContents;
import org.chromium.net.NetError;
/**
* Routes notifications from WebContents to AwContentsClient and other listeners.
*/
public class AwWebContentsObserver extends WebContentsObserver {
private final AwContentsClient mAwContentsClient;
private boolean mHasStartedAnyProvisionalLoad = false;
public AwWebContentsObserver(WebContents webContents, AwContentsClient awContentsClient) {
super(webContents);
mAwContentsClient = awContentsClient;
}
boolean hasStartedAnyProvisionalLoad() {
return mHasStartedAnyProvisionalLoad;
}
@Override
public void didFinishLoad(long frameId, String validatedUrl, boolean isMainFrame) {
String unreachableWebDataUrl = AwContentsStatics.getUnreachableWebDataUrl();
boolean isErrorUrl =
unreachableWebDataUrl != null && unreachableWebDataUrl.equals(validatedUrl);
if (isMainFrame && !isErrorUrl) {
mAwContentsClient.onPageFinished(validatedUrl);
}
}
@Override
public void didFailLoad(boolean isProvisionalLoad,
boolean isMainFrame, int errorCode, String description, String failingUrl) {
String unreachableWebDataUrl = AwContentsStatics.getUnreachableWebDataUrl();
boolean isErrorUrl =
unreachableWebDataUrl != null && unreachableWebDataUrl.equals(failingUrl);
if (isMainFrame && !isErrorUrl) {
if (errorCode != NetError.ERR_ABORTED) {
// This error code is generated for the following reasons:
// - WebView.stopLoading is called,
// - the navigation is intercepted by the embedder via shouldOverrideNavigation.
//
// The Android WebView does not notify the embedder of these situations using
// this error code with the WebViewClient.onReceivedError callback.
mAwContentsClient.onReceivedError(
ErrorCodeConversionHelper.convertErrorCode(errorCode), description,
failingUrl);
}
// Need to call onPageFinished after onReceivedError (if there is an error) for
// backwards compatibility with the classic webview.
mAwContentsClient.onPageFinished(failingUrl);
}
}
@Override
public void didNavigateMainFrame(String url, String baseUrl,
boolean isNavigationToDifferentPage, boolean isFragmentNavigation) {
// This is here to emulate the Classic WebView firing onPageFinished for main frame
// navigations where only the hash fragment changes.
if (isFragmentNavigation) {
mAwContentsClient.onPageFinished(url);
}
}
@Override
public void didNavigateAnyFrame(String url, String baseUrl, boolean isReload) {
mAwContentsClient.doUpdateVisitedHistory(url, isReload);
}
@Override
public void didStartProvisionalLoadForFrame(
long frameId,
long parentFrameId,
boolean isMainFrame,
String validatedUrl,
boolean isErrorPage,
boolean isIframeSrcdoc) {
mHasStartedAnyProvisionalLoad = true;
}
}
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