experimental.popup support for tab-content-viewed extensions

chrome/browser/extensions/extension_popup_host.cc

+// Copyright (c) 2009 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/extensions/extension_popup_host.h"
+
+#if defined(TOOLKIT_VIEWS)
+#include "chrome/browser/extensions/extension_popup_api.h"
+#endif
+#include "chrome/browser/profile.h"
+#include "chrome/browser/browser.h"
+#include "chrome/browser/renderer_host/render_view_host.h"
+#if defined(TOOLKIT_VIEWS)
+#include "chrome/browser/views/extensions/extension_popup.h"
+#endif
+#include "chrome/common/notification_details.h"
+#include "chrome/common/notification_source.h"
+#include "chrome/common/notification_type.h"
+
+
+ExtensionPopupHost* ExtensionPopupHost::PopupDelegate::popup_host() {
+  if (!popup_host_.get())
+    popup_host_.reset(new ExtensionPopupHost(this));
+
+  return popup_host_.get();
+}
+
+ExtensionPopupHost::ExtensionPopupHost(PopupDelegate* delegate)
+    :  // NO LINT
+#if defined(TOOLKIT_VIEWS)
+      child_popup_(NULL),
+#endif
+      delegate_(delegate) {
+  DCHECK(delegate_);
+
+  // Listen for view close requests, so that we can dismiss a hosted pop-up
+  // view, if necessary.
+  registrar_.Add(this, NotificationType::EXTENSION_HOST_VIEW_SHOULD_CLOSE,
+                 Source<Profile>(delegate_->GetBrowser()->profile()));
+}
+
+ExtensionPopupHost::~ExtensionPopupHost() {
+  DismissPopup();
+}
+
+#if defined(TOOLKIT_VIEWS)
+void ExtensionPopupHost::BubbleBrowserWindowMoved(BrowserBubble* bubble) {
+  DismissPopup();
+}
+
+void ExtensionPopupHost::BubbleBrowserWindowClosing(BrowserBubble* bubble) {
+  DismissPopup();
+}
+
+void ExtensionPopupHost::BubbleGotFocus(BrowserBubble* bubble) {
+}
+
+void ExtensionPopupHost::BubbleLostFocus(BrowserBubble* bubble) {
+  // TODO(twiz):  Dismiss the pop-up upon loss of focus of the bubble, but not
+  // if the focus is transitioning to the host which owns the popup!
+  // DismissPopup();
+}
+#endif  // defined(TOOLKIT_VIEWS)
+
+void ExtensionPopupHost::Observe(NotificationType type,
+                                 const NotificationSource& source,
+                                 const NotificationDetails& details) {
+  if (type == NotificationType::EXTENSION_HOST_VIEW_SHOULD_CLOSE) {
+#if defined(TOOLKIT_VIEWS)
+    // If we aren't the host of the popup, then disregard the notification.
+    if (!child_popup_ ||
+        Details<ExtensionHost>(child_popup_->host()) != details) {
+      return;
+    }
+    DismissPopup();
+#endif
+  } else {
+    NOTREACHED();
+  }
+}
+
+void ExtensionPopupHost::DismissPopup() {
+#if defined(TOOLKIT_VIEWS)
+  if (child_popup_) {
+    child_popup_->Hide();
+    child_popup_->DetachFromBrowser();
+    delete child_popup_;
+    child_popup_ = NULL;
+
+    PopupEventRouter::OnPopupClosed(
+        delegate_->GetBrowser()->profile(),
+        delegate_->GetRenderViewHost()->routing_id());
+  }
+#endif  // defined(TOOLKIT_VIEWS)
+}