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-rw-r--r--content/public/browser/DEPS1
-rw-r--r--content/public/browser/web_contents_observer.cc65
-rw-r--r--content/public/browser/web_contents_observer.h137
-rw-r--r--content/public/common/frame_navigate_params.h2
4 files changed, 204 insertions, 1 deletions
diff --git a/content/public/browser/DEPS b/content/public/browser/DEPS
index 2f3c1e2..9e39647 100644
--- a/content/public/browser/DEPS
+++ b/content/public/browser/DEPS
@@ -7,6 +7,7 @@ include_rules = [
"+content/browser/download/save_package.h",
"+content/browser/download/interrupt_reasons.h",
"+content/browser/javascript_dialogs.h",
+ "+content/browser/tab_contents/navigation_controller.h",
"+content/browser/tab_contents/navigation_entry.h",
"+content/browser/tab_contents/tab_contents.h",
"+content/browser/webui/web_ui.h",
diff --git a/content/public/browser/web_contents_observer.cc b/content/public/browser/web_contents_observer.cc
new file mode 100644
index 0000000..2ec882b
--- /dev/null
+++ b/content/public/browser/web_contents_observer.cc
@@ -0,0 +1,65 @@
+// Copyright (c) 2011 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 "content/public/browser/web_contents_observer.h"
+
+#include "content/browser/renderer_host/render_view_host.h"
+#include "content/browser/tab_contents/tab_contents.h"
+#include "content/public/browser/navigation_details.h"
+
+namespace content {
+
+WebContentsObserver::WebContentsObserver(TabContents* tab_contents)
+ : tab_contents_(NULL) {
+ Observe(tab_contents);
+}
+
+WebContentsObserver::WebContentsObserver()
+ : tab_contents_(NULL) {
+}
+
+WebContentsObserver::~WebContentsObserver() {
+ if (tab_contents_)
+ tab_contents_->RemoveObserver(this);
+}
+
+void WebContentsObserver::Observe(TabContents* tab_contents) {
+ if (tab_contents_)
+ tab_contents_->RemoveObserver(this);
+ tab_contents_ = tab_contents;
+ if (tab_contents_) {
+ tab_contents_->AddObserver(this);
+ }
+}
+
+bool WebContentsObserver::OnMessageReceived(const IPC::Message& message) {
+ return false;
+}
+
+bool WebContentsObserver::Send(IPC::Message* message) {
+ if (!tab_contents_ || !tab_contents_->GetRenderViewHost()) {
+ delete message;
+ return false;
+ }
+
+ return tab_contents_->GetRenderViewHost()->Send(message);
+}
+
+int WebContentsObserver::routing_id() const {
+ if (!tab_contents_ || !tab_contents_->GetRenderViewHost())
+ return MSG_ROUTING_NONE;
+
+ return tab_contents_->GetRenderViewHost()->routing_id();
+}
+
+void WebContentsObserver::TabContentsDestroyed() {
+ // Do cleanup so that 'this' can safely be deleted from
+ // TabContentsDestroyed.
+ tab_contents_->RemoveObserver(this);
+ TabContents* tab = tab_contents_;
+ tab_contents_ = NULL;
+ TabContentsDestroyed(tab);
+}
+
+} // namespace content
diff --git a/content/public/browser/web_contents_observer.h b/content/public/browser/web_contents_observer.h
new file mode 100644
index 0000000..a3d713f
--- /dev/null
+++ b/content/public/browser/web_contents_observer.h
@@ -0,0 +1,137 @@
+// Copyright (c) 2011 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.
+
+#ifndef CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_OBSERVER_H_
+#define CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_OBSERVER_H_
+
+#include "base/process_util.h"
+#include "content/browser/tab_contents/navigation_controller.h"
+#include "content/common/content_export.h"
+#include "content/public/common/page_transition_types.h"
+#include "ipc/ipc_channel.h"
+#include "webkit/glue/window_open_disposition.h"
+
+class RenderViewHost;
+class TabContents;
+
+namespace content {
+
+struct FrameNavigateParams;
+struct Referrer;
+
+// An observer API implemented by classes which are interested in various page
+// load events from TabContents. They also get a chance to filter IPC messages.
+class CONTENT_EXPORT WebContentsObserver : public IPC::Channel::Listener,
+ public IPC::Message::Sender {
+ public:
+ virtual void RenderViewCreated(RenderViewHost* render_view_host) {}
+ virtual void RenderViewDeleted(RenderViewHost* render_view_host) {}
+ virtual void RenderViewReady() {}
+ virtual void RenderViewGone(base::TerminationStatus status) {}
+ virtual void NavigateToPendingEntry(
+ const GURL& url,
+ NavigationController::ReloadType reload_type) {}
+ virtual void DidNavigateMainFrame(
+ const LoadCommittedDetails& details,
+ const FrameNavigateParams& params) {}
+ virtual void DidNavigateAnyFrame(
+ const LoadCommittedDetails& details,
+ const FrameNavigateParams& params) {}
+ // |render_view_host| is the RenderViewHost for which the provisional load is
+ // happening.
+ virtual void DidStartProvisionalLoadForFrame(
+ int64 frame_id,
+ bool is_main_frame,
+ const GURL& validated_url,
+ bool is_error_page,
+ RenderViewHost* render_view_host) {}
+ virtual void ProvisionalChangeToMainFrameUrl(const GURL& url,
+ const GURL& opener_url) {}
+ virtual void DidCommitProvisionalLoadForFrame(
+ int64 frame_id,
+ bool is_main_frame,
+ const GURL& url,
+ PageTransition transition_type) {}
+ virtual void DidFailProvisionalLoad(int64 frame_id,
+ bool is_main_frame,
+ const GURL& validated_url,
+ int error_code,
+ const string16& error_description) {}
+ virtual void DocumentAvailableInMainFrame() {}
+ virtual void DocumentLoadedInFrame(int64 frame_id) {}
+ virtual void DidFinishLoad(int64 frame_id,
+ const GURL& validated_url,
+ bool is_main_frame) {}
+ virtual void DidFailLoad(int64 frame_id,
+ const GURL& validated_url,
+ bool is_main_frame,
+ int error_code,
+ const string16& error_description) {}
+ virtual void DidGetUserGesture() {}
+ virtual void DidGetIgnoredUIEvent() {}
+ virtual void DidBecomeSelected() {}
+
+ virtual void DidStartLoading() {}
+ virtual void DidStopLoading() {}
+ virtual void StopNavigation() {}
+
+ virtual void DidOpenURL(const GURL& url,
+ const Referrer& referrer,
+ WindowOpenDisposition disposition,
+ PageTransition transition) {}
+
+ virtual void DidOpenRequestedURL(TabContents* new_contents,
+ const GURL& url,
+ const Referrer& referrer,
+ WindowOpenDisposition disposition,
+ PageTransition transition,
+ int64 source_frame_id) {}
+
+ virtual void AppCacheAccessed(const GURL& manifest_url,
+ bool blocked_by_policy) {}
+
+ // Invoked when the TabContents is being destroyed. Gives subclasses a chance
+ // to cleanup. At the time this is invoked |tab_contents()| returns NULL.
+ // It is safe to delete 'this' from here.
+ virtual void TabContentsDestroyed(TabContents* tab) {}
+
+ // IPC::Channel::Listener implementation.
+ virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
+
+ // IPC::Message::Sender implementation.
+ virtual bool Send(IPC::Message* message) OVERRIDE;
+ int routing_id() const;
+
+ protected:
+ // Use this constructor when the object is tied to a single TabContents for
+ // its entire lifetime.
+ explicit WebContentsObserver(TabContents* tab_contents);
+
+ // Use this constructor when the object wants to observe a TabContents for
+ // part of its lifetime. It can then call Observe() to start and stop
+ // observing.
+ WebContentsObserver();
+
+ virtual ~WebContentsObserver();
+
+ // Start observing a different TabContents; used with the default constructor.
+ void Observe(TabContents* tab_contents);
+
+ TabContents* tab_contents() const { return tab_contents_; }
+
+ private:
+ friend class ::TabContents;
+
+ // Invoked from TabContents. Invokes TabContentsDestroyed and NULL out
+ // |tab_contents_|.
+ void TabContentsDestroyed();
+
+ TabContents* tab_contents_;
+
+ DISALLOW_COPY_AND_ASSIGN(WebContentsObserver);
+};
+
+} // namespace content
+
+#endif // CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_OBSERVER_H_
diff --git a/content/public/common/frame_navigate_params.h b/content/public/common/frame_navigate_params.h
index 56de737..6ae99eb 100644
--- a/content/public/common/frame_navigate_params.h
+++ b/content/public/common/frame_navigate_params.h
@@ -18,7 +18,7 @@
namespace content {
-// Struct used by TabContentsObserver.
+// Struct used by WebContentsObserver.
struct CONTENT_EXPORT FrameNavigateParams {
FrameNavigateParams();
~FrameNavigateParams();
generated by cgit v1.1 at 2025-05-08 03:55:36 +0000