[temporary M30 fix] Disable dragging tabs with web contents modal dialogs displayed

chrome/browser/ui/views/tabs/browser_tab_strip_controller.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 "chrome/browser/ui/views/tabs/browser_tab_strip_controller.h"
 
 #include "base/auto_reset.h"
 #include "base/command_line.h"
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/extensions/tab_helper.h"
 #include "chrome/browser/favicon/favicon_tab_helper.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/search/search.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_tabstrip.h"
 #include "chrome/browser/ui/tabs/tab_menu_model.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/browser/ui/tabs/tab_strip_model_delegate.h"
 #include "chrome/browser/ui/tabs/tab_utils.h"
 #include "chrome/browser/ui/views/frame/browser_view.h"
 #include "chrome/browser/ui/views/tabs/tab.h"
 #include "chrome/browser/ui/views/tabs/tab_renderer_data.h"
 #include "chrome/browser/ui/views/tabs/tab_strip.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/url_constants.h"
+#include "components/web_modal/web_contents_modal_dialog_manager.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/user_metrics.h"
 #include "content/public/browser/web_contents.h"
 #include "ui/base/layout.h"
 #include "ui/base/models/list_selection_model.h"
 #include "ui/gfx/image/image.h"
 #include "ui/views/controls/menu/menu_item_view.h"
 #include "ui/views/controls/menu/menu_runner.h"
 #include "ui/views/widget/widget.h"
 
 using content::UserMetricsAction;
 using content::WebContents;
+using web_modal::WebContentsModalDialogManager;
 
 namespace {
 
 TabRendererData::NetworkState TabContentsNetworkState(
     WebContents* contents) {
   if (!contents || !contents->IsLoading())
     return TabRendererData::NETWORK_STATE_NONE;
   if (contents->IsWaitingForResponse())
     return TabRendererData::NETWORK_STATE_WAITING;
   return TabRendererData::NETWORK_STATE_LOADING;
@@ skipping 306 matching lines @@
   TabStripLayoutType layout_type =
       DetermineTabStripLayout(g_browser_process->local_state(), &adjust_layout);
   if (!adjust_layout || layout_type == tabstrip_->layout_type())
     return;
 
   g_browser_process->local_state()->SetInteger(
       prefs::kTabStripLayoutType,
       static_cast<int>(tabstrip_->layout_type()));
 }
 
+bool BrowserTabStripController::IsTabShowingWebViewModalDialog(int index) {
+  DCHECK(model_->ContainsIndex(index));
+  WebContentsModalDialogManager* contents_modal_dialog_manager =
+      WebContentsModalDialogManager::FromWebContents(
+          model_->GetWebContentsAt(index));
+  return contents_modal_dialog_manager &&
+      contents_modal_dialog_manager->IsShowingDialog();
+}
+
 void BrowserTabStripController::OnStartedDraggingTabs() {
   BrowserView* browser_view = BrowserView::GetBrowserViewForBrowser(browser_);
   if (browser_view && !immersive_reveal_lock_.get()) {
     // The top-of-window views should be revealed while the user is dragging
     // tabs in immersive fullscreen. The top-of-window views may not be already
     // revealed if the user is attempting to attach a tab to a tabstrip
     // belonging to an immersive fullscreen window.
     immersive_reveal_lock_.reset(
         browser_view->immersive_mode_controller()->GetRevealedLock(
             ImmersiveModeController::ANIMATE_REVEAL_NO));
@@ skipping 151 matching lines @@
   SetTabRendererDataFromModel(contents, index, &data, NEW_TAB);
   tabstrip_->AddTabAt(index, data, is_active);
 }
 
 void BrowserTabStripController::UpdateLayoutType() {
   bool adjust_layout = false;
   TabStripLayoutType layout_type =
       DetermineTabStripLayout(g_browser_process->local_state(), &adjust_layout);
   tabstrip_->SetLayoutType(layout_type, adjust_layout);
 }