[WebModals] New API for browser-scoped popup management.

components/web_modal/popup_manager.cc

+// Copyright (c) 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 "components/web_modal/popup_manager.h"
+
+#include "content/public/browser/navigation_details.h"
+#include "content/public/browser/navigation_entry.h"
+#include "content/public/browser/render_view_host.h"
+#include "content/public/browser/web_contents.h"
+#include "net/base/registry_controlled_domains/registry_controlled_domain.h"
+
+using content::WebContents;
+
+namespace web_modal {
+
+PopupManager::PopupManager()
+    : closing_all_popups_(false) {
+}
+
+PopupManager::~PopupManager() {
+  DCHECK(child_popups_.empty());
+}
+
+void PopupManager::ShowPopup(scoped_ptr<SinglePopupManager> manager) {
+  child_popups_.push_back(new PopupState(manager->popup(), manager.Pass()));
+
+  if (child_popups_.size() == 1)
+    child_popups_.back()->manager->Show();
+}
+
+bool PopupManager::IsPopupActiveInCurrentWebContents() const {
+  return !child_popups_.empty();
+}
+
+void PopupManager::FocusTopmostPopup() {
+  DCHECK(!child_popups_.empty());
+  child_popups_.front()->manager->Focus();
+}
+
+void PopupManager::WillClose(NativePopup popup) {
+  PopupList::iterator dlg = FindPopupState(popup);
+
+  // The Views tab contents modal dialog calls WillClose twice.  Ignore the
+  // second invocation.
+  if (dlg == child_popups_.end())
+    return;
+
+  bool removed_topmost_dialog = dlg == child_popups_.begin();
+  scoped_ptr<PopupState> deleter(*dlg);
+  child_popups_.erase(dlg);
+  if (!child_popups_.empty() && removed_topmost_dialog &&
+      !closing_all_popups_) {
+    child_popups_.front()->manager->Show();
+  }
+}
+
+PopupManager::PopupState::PopupState(
+    NativePopup popup,
+    scoped_ptr<SinglePopupManager> mgr)
+    : popup(popup),
+      manager(mgr.release()),
+#if defined(USE_AURA)
+      close_on_interstitial_webui(true)
+#else
+      // TODO(wittman): Test that closing on interstitial webui works properly
+      // on Mac and use the true default for all platforms.
+      close_on_interstitial_webui(false)
+#endif
+                                         {
+}
+
+PopupManager::PopupState::~PopupState() {}
+
+PopupManager::PopupList::iterator PopupManager::FindPopupState(
+    NativePopup popup) {
+  PopupList::iterator i;
+  for (i = child_popups_.begin(); i != child_popups_.end(); ++i) {
+    if ((*i)->popup == popup)
+      break;
+  }
+
+  return i;
+}
+
+void PopupManager::CloseAllPopups() {
+  closing_all_popups_ = true;
+
+  // Clear out any dialogs since we are leaving this page entirely.
+  while (!child_popups_.empty()) {
+    child_popups_.front()->manager->Close();
+  }
+
+  closing_all_popups_ = false;
+}
+
+void PopupManager::DidNavigateMainFrame(
+    content::WebContents* web_contents,
+    const content::LoadCommittedDetails& details,
+    const content::FrameNavigateParams& params) {
+  // Close constrained windows if necessary.
+  if (!net::registry_controlled_domains::SameDomainOrHost(
+          details.previous_url, details.entry->GetURL(),
+          net::registry_controlled_domains::INCLUDE_PRIVATE_REGISTRIES))
+    CloseAllPopups();
+}
+
+void PopupManager::DidGetIgnoredUIEvent(content::WebContents* web_contents) {
+  if (!child_popups_.empty()) {
+    child_popups_.front()->manager->Focus();
+  }
+}
+
+void PopupManager::WasShown(content::WebContents* web_contents) {
+  if (!child_popups_.empty())
+    child_popups_.front()->manager->Show();
+}
+
+void PopupManager::WasHidden(content::WebContents* web_contents) {
+  if (!child_popups_.empty())
+    child_popups_.front()->manager->Hide();
+}
+
+void PopupManager::WebContentsDestroyed(content::WebContents* web_contents) {
+  // First cleanly close all child dialogs.
+  // TODO(mpcomplete): handle case if MaybeCloseChildWindows() already asked
+  // some of these to close.  CloseAllDialogs is async, so it might get called
+  // twice before it runs.
+  CloseAllPopups();
+}
+
+void PopupManager::DidAttachInterstitialPage(
+    content::WebContents* web_contents) {
+  // Copy the dialogs so we can close and remove them while iterating over the
+  // list.
+  PopupList dialogs(child_popups_);
+  for (PopupList::iterator it = dialogs.begin();
+       it != dialogs.end(); ++it) {
+    if ((*it)->close_on_interstitial_webui)
+      (*it)->manager->Close();
+  }
+}
+
+}  // namespace web_modal