Revert 3 CLs for shouldOverrideUrlLoading implementation.

android_webview/renderer/aw_content_renderer_client.cc

 // Copyright 2012 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.
 
 #include "android_webview/renderer/aw_content_renderer_client.h"
 
 #include <vector>
 
 #include "android_webview/common/aw_resource.h"
 #include "android_webview/common/aw_switches.h"
@@ skipping 11 matching lines @@
 #include "base/command_line.h"
 #include "base/i18n/rtl.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "components/autofill/content/renderer/autofill_agent.h"
 #include "components/autofill/content/renderer/password_autofill_agent.h"
 #include "components/printing/renderer/print_web_view_helper.h"
 #include "components/visitedlink/renderer/visitedlink_slave.h"
 #include "content/public/common/url_constants.h"
+#include "content/public/renderer/document_state.h"
+#include "content/public/renderer/navigation_state.h"
 #include "content/public/renderer/render_frame.h"
 #include "content/public/renderer/render_thread.h"
 #include "content/public/renderer/render_view.h"
 #include "net/base/escape.h"
 #include "net/base/net_errors.h"
 #include "third_party/WebKit/public/platform/WebString.h"
 #include "third_party/WebKit/public/platform/WebURL.h"
 #include "third_party/WebKit/public/platform/WebURLError.h"
 #include "third_party/WebKit/public/platform/WebURLRequest.h"
 #include "third_party/WebKit/public/web/WebFrame.h"
+#include "third_party/WebKit/public/web/WebNavigationType.h"
 #include "third_party/WebKit/public/web/WebSecurityPolicy.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "url/gurl.h"
 #include "url/url_constants.h"
 
 using content::RenderThread;
 
 namespace android_webview {
 
@@ skipping 17 matching lines @@
   thread->EnsureWebKitInitialized();
 
   blink::WebString content_scheme(base::ASCIIToUTF16(url::kContentScheme));
   blink::WebSecurityPolicy::registerURLSchemeAsLocal(content_scheme);
 
   blink::WebString aw_scheme(
       base::ASCIIToUTF16(android_webview::kAndroidWebViewVideoPosterScheme));
   blink::WebSecurityPolicy::registerURLSchemeAsSecure(aw_scheme);
 }
 
+bool AwContentRendererClient::HandleNavigation(
+    content::RenderFrame* render_frame,
+    bool is_content_initiated,
+    int opener_id,
+    blink::WebFrame* frame,
+    const blink::WebURLRequest& request,
+    blink::WebNavigationType type,
+    blink::WebNavigationPolicy default_policy,
+    bool is_redirect) {
+  // Only GETs can be overridden.
+  if (!request.httpMethod().equals("GET"))
+    return false;
+
+  // Any navigation from loadUrl, and goBack/Forward are considered application-
+  // initiated and hence will not yield a shouldOverrideUrlLoading() callback.
+  // Webview classic does not consider reload application-initiated so we
+  // continue the same behavior.
+  // TODO(sgurun) is_content_initiated is normally false for cross-origin
+  // navigations but since android_webview does not swap out renderers, this
+  // works fine. This will stop working if android_webview starts swapping out
+  // renderers on navigation.
+  bool application_initiated =
+      !is_content_initiated || type == blink::WebNavigationTypeBackForward;
+
+  // Don't offer application-initiated navigations unless it's a redirect.
+  if (application_initiated && !is_redirect)
+    return false;
+
+  bool is_main_frame = !frame->parent();
+  const GURL& gurl = request.url();
+  // For HTTP schemes, only top-level navigations can be overridden. Similarly,
+  // WebView Classic lets app override only top level about:blank navigations.
+  // So we filter out non-top about:blank navigations here.
+  if (!is_main_frame &&
+      (gurl.SchemeIs(url::kHttpScheme) || gurl.SchemeIs(url::kHttpsScheme) ||
+       gurl.SchemeIs(url::kAboutScheme)))
+    return false;
+
+  // use NavigationInterception throttle to handle the call as that can
+  // be deferred until after the java side has been constructed.
+  if (opener_id != MSG_ROUTING_NONE) {
+    return false;
+  }
+
+  bool ignore_navigation = false;
+  base::string16 url = request.url().string();
+  bool has_user_gesture = request.hasUserGesture();
+
+  int render_frame_id = render_frame->GetRoutingID();
+  RenderThread::Get()->Send(new AwViewHostMsg_ShouldOverrideUrlLoading(
+      render_frame_id, url, has_user_gesture, is_redirect, is_main_frame,
+      &ignore_navigation));
+  return ignore_navigation;
+}
+
 void AwContentRendererClient::RenderFrameCreated(
     content::RenderFrame* render_frame) {
   new AwContentSettingsClient(render_frame);
   new PrintRenderFrameObserver(render_frame);
   new AwRenderFrameExt(render_frame);
   new AwMessagePortClient(render_frame);
 
   // TODO(jam): when the frame tree moves into content and parent() works at
   // RenderFrame construction, simplify this by just checking parent().
   content::RenderFrame* parent_frame =
@@ skipping 89 matching lines @@
     blink::WebPageVisibilityState* override_state) {
   if (disable_page_visibility_) {
     *override_state = blink::WebPageVisibilityStateVisible;
     return true;
   }
 
   return false;
 }
 
 }  // namespace android_webview