Add BubbleManager to manage bubbles and ChromeBubbleManager for events.

chrome/browser/ui/chrome_bubble_manager.cc

+// Copyright 2015 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 "chrome/browser/ui/chrome_bubble_manager.h"
+
+#include "base/location.h"
+#include "chrome/browser/ui/chrome_bubble_manager.h"
+#include "content/public/browser/browser_thread.h"
+#include "content/public/browser/web_contents.h"
+#include "content/public/browser/web_contents_observer.h"
+#include "content/public/browser/web_contents_user_data.h"
+
+namespace {
+class ChromeWebContentsObserver
+    : public content::WebContentsObserver,
+      public content::WebContentsUserData<ChromeWebContentsObserver> {
+ public:
+  ~ChromeWebContentsObserver() override;
+
+  void SetBubbleManager(ChromeBubbleManager* manager);
+
+  // WebContentsObserver:
+  void NavigationEntryCommitted(
+      const content::LoadCommittedDetails& details) override;
+  void WebContentsDestroyed() override;
+
+ private:
+  friend class content::WebContentsUserData<ChromeWebContentsObserver>;

[groby-ooo-7-16, 2015/08/06 21:32:55]

We public inherit from that - why do we need to friend it? (This seems to
indicate a broken API on WCU, or a mistake)

[hcarmona, 2015/08/07 02:12:58]

This is done because the constructor is private.

[please use gerrit instead, 2015/08/07 20:34:28]

That's the API they seem to recommend here:

https://code.google.com/p/chromium/codesearch#chromium/src/content/public/bro...

It's funky indeed.

+
+  explicit ChromeWebContentsObserver(content::WebContents* web_contents);
+
+  // Weak.

[groby-ooo-7-16, 2015/08/06 21:32:55]

Just add comment at the end. Save a line :)

[hcarmona, 2015/08/07 02:12:58]

Line saved.

+  ChromeBubbleManager* manager_;
+
+  DISALLOW_COPY_AND_ASSIGN(ChromeWebContentsObserver);
+};
+
+ChromeWebContentsObserver::~ChromeWebContentsObserver() {}
+
+void ChromeWebContentsObserver::ChromeWebContentsObserver::SetBubbleManager(
+    ChromeBubbleManager* manager) {
+  manager_ = manager;
+}
+
+void ChromeWebContentsObserver::NavigationEntryCommitted(
+    const content::LoadCommittedDetails& details) {
+  manager_->NavigationEntryCommitted(web_contents(), details);
+}
+
+void ChromeWebContentsObserver::WebContentsDestroyed() {
+  manager_->WebContentsDestroyed(web_contents());
+}
+
+ChromeWebContentsObserver::ChromeWebContentsObserver(
+    content::WebContents* web_contents)
+    : content::WebContentsObserver(web_contents), manager_(nullptr) {}
+} //  namespace
+
+DEFINE_WEB_CONTENTS_USER_DATA_KEY(ChromeWebContentsObserver);
+
+ChromeBubbleManager::ChromeBubbleManager() {}
+
+ChromeBubbleManager::~ChromeBubbleManager() {}
+
+void ChromeBubbleManager::ListenToWebContents(

[groby-ooo-7-16, 2015/08/06 21:32:55]

Who invokes that? Shouldn't bubbles at least on Chrome automatically call this?

[hcarmona, 2015/08/07 02:12:58]

Currently used in the BrowserView.
How do we set this up to be called automatically?

+    content::WebContents* web_contents) {
+  ChromeWebContentsObserver::CreateForWebContents(web_contents);
+  ChromeWebContentsObserver::FromWebContents(web_contents)
+      ->SetBubbleManager(this);
+}
+
+void ChromeBubbleManager::FullscreenToggle(content::WebContents* context) {
+  UpdateMatchingBubbles(context);
+}
+
+void ChromeBubbleManager::TabBlur(content::WebContents* context) {
+  CloseMatchingBubbles(context, false, BUBBLE_CLOSE_TABSWITCH);
+}
+
+void ChromeBubbleManager::TabFocus(content::WebContents* context) {
+  ShowMatchingBubbles(context);
+}
+
+void ChromeBubbleManager::TabDetached(content::WebContents* context) {
+  CloseMatchingBubbles(context, false, BUBBLE_CLOSE_TABSWITCH);
+}
+
+void ChromeBubbleManager::NavigationEntryCommitted(
+    content::WebContents* context,
+    const content::LoadCommittedDetails& details) {
+  // Hide bubbles if the URL changes or the page is refreshed.
+  if (!details.is_in_page ||
+      details.type == content::NAVIGATION_TYPE_SAME_PAGE ||
+      details.type == content::NAVIGATION_TYPE_EXISTING_PAGE) {
+    CloseMatchingBubbles(context, true, BUBBLE_CLOSE_IGNORE);
+  }
+}
+
+void ChromeBubbleManager::WebContentsDestroyed(content::WebContents* context) {
+  CloseMatchingBubbles(context, true, BUBBLE_CLOSE_IGNORE);
+}
+
+void ChromeBubbleManager::ScheduleShowBubble(
+    base::WeakPtr<BubbleController> controller) {
+  content::BrowserThread::PostTask(
+      content::BrowserThread::UI,
+      FROM_HERE,
+      base::Bind(&BubbleController::Show,
+                 controller));
+}