root/chrome/browser/ui/browser_tab_strip_model_delegate.cc

DEFINITIONS

1. weak_factory_
2. AddTabAt
3. CreateNewStripWithContents
4. WillAddWebContents
5. GetDragActions
6. CanDuplicateContentsAt
7. DuplicateContentsAt
8. CloseFrameAfterDragSession
9. CreateHistoricalTab
10. RunUnloadListenerBeforeClosing
11. ShouldRunUnloadListenerBeforeClosing
12. CanBookmarkAllTabs
13. BookmarkAllTabs
14. GetRestoreTabType
15. RestoreTab
16. CloseFrame

// 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/browser_tab_strip_model_delegate.h"

#include "base/bind.h"
#include "base/command_line.h"
#include "base/message_loop/message_loop.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/sessions/tab_restore_service.h"
#include "chrome/browser/sessions/tab_restore_service_factory.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_commands.h"
#include "chrome/browser/ui/browser_navigator.h"
#include "chrome/browser/ui/browser_tabstrip.h"
#include "chrome/browser/ui/browser_window.h"
#include "chrome/browser/ui/fast_unload_controller.h"
#include "chrome/browser/ui/tab_helpers.h"
#include "chrome/browser/ui/tabs/tab_strip_model.h"
#include "chrome/browser/ui/unload_controller.h"
#include "chrome/common/chrome_switches.h"
#include "content/public/browser/site_instance.h"
#include "content/public/browser/web_contents.h"
#include "content/public/browser/web_contents_delegate.h"
#include "content/public/common/page_transition_types.h"
#include "ipc/ipc_message.h"

namespace chrome {

////////////////////////////////////////////////////////////////////////////////
// BrowserTabStripModelDelegate, public:

BrowserTabStripModelDelegate::BrowserTabStripModelDelegate(Browser* browser)
    : browser_(browser),
      weak_factory_(this) {
}

BrowserTabStripModelDelegate::~BrowserTabStripModelDelegate() {
}

////////////////////////////////////////////////////////////////////////////////
// BrowserTabStripModelDelegate, TabStripModelDelegate implementation:

void BrowserTabStripModelDelegate::AddTabAt(const GURL& url,
                                            int index,
                                            bool foreground) {
  chrome::AddTabAt(browser_, url, index, foreground);
}

Browser* BrowserTabStripModelDelegate::CreateNewStripWithContents(
    const std::vector<NewStripContents>& contentses,
    const gfx::Rect& window_bounds,
    bool maximize) {
  DCHECK(browser_->CanSupportWindowFeature(Browser::FEATURE_TABSTRIP));

  // Create an empty new browser window the same size as the old one.
  Browser::CreateParams params(browser_->profile(),
                               browser_->host_desktop_type());
  params.initial_bounds = window_bounds;
  params.initial_show_state =
      maximize ? ui::SHOW_STATE_MAXIMIZED : ui::SHOW_STATE_NORMAL;
  Browser* browser = new Browser(params);
  TabStripModel* new_model = browser->tab_strip_model();

  for (size_t i = 0; i < contentses.size(); ++i) {
    NewStripContents item = contentses[i];

    // Enforce that there is an active tab in the strip at all times by forcing
    // the first web contents to be marked as active.
    if (i == 0)
      item.add_types |= TabStripModel::ADD_ACTIVE;

    new_model->InsertWebContentsAt(
        static_cast<int>(i), item.web_contents, item.add_types);
    // Make sure the loading state is updated correctly, otherwise the throbber
    // won't start if the page is loading.
    // TODO(beng): find a better way of doing this.
    static_cast<content::WebContentsDelegate*>(browser)->
        LoadingStateChanged(item.web_contents, true);
  }

  return browser;
}

void BrowserTabStripModelDelegate::WillAddWebContents(
    content::WebContents* contents) {
  TabHelpers::AttachTabHelpers(contents);
}

int BrowserTabStripModelDelegate::GetDragActions() const {
  return TabStripModelDelegate::TAB_TEAROFF_ACTION |
      (browser_->tab_strip_model()->count() > 1
          ? TabStripModelDelegate::TAB_MOVE_ACTION : 0);
}

bool BrowserTabStripModelDelegate::CanDuplicateContentsAt(int index) {
  return CanDuplicateTabAt(browser_, index);
}

void BrowserTabStripModelDelegate::DuplicateContentsAt(int index) {
  DuplicateTabAt(browser_, index);
}

void BrowserTabStripModelDelegate::CloseFrameAfterDragSession() {
#if !defined(OS_MACOSX)
  // This is scheduled to run after we return to the message loop because
  // otherwise the frame will think the drag session is still active and ignore
  // the request.
  base::MessageLoop::current()->PostTask(
      FROM_HERE,
      base::Bind(&BrowserTabStripModelDelegate::CloseFrame,
                 weak_factory_.GetWeakPtr()));
#endif
}

void BrowserTabStripModelDelegate::CreateHistoricalTab(
    content::WebContents* contents) {
  // We don't create historical tabs for incognito windows or windows without
  // profiles.
  if (!browser_->profile() || browser_->profile()->IsOffTheRecord())
    return;

  TabRestoreService* service =
      TabRestoreServiceFactory::GetForProfile(browser_->profile());

  // We only create historical tab entries for tabbed browser windows.
  if (service && browser_->CanSupportWindowFeature(Browser::FEATURE_TABSTRIP)) {
    service->CreateHistoricalTab(
        contents,
        browser_->tab_strip_model()->GetIndexOfWebContents(contents));
  }
}

bool BrowserTabStripModelDelegate::RunUnloadListenerBeforeClosing(
    content::WebContents* contents) {
  if (CommandLine::ForCurrentProcess()->HasSwitch(
          switches::kEnableFastUnload)) {
    return chrome::FastUnloadController::RunUnloadEventsHelper(contents);
  }
  return chrome::UnloadController::RunUnloadEventsHelper(contents);
}

bool BrowserTabStripModelDelegate::ShouldRunUnloadListenerBeforeClosing(
    content::WebContents* contents) {
  if (CommandLine::ForCurrentProcess()->HasSwitch(
          switches::kEnableFastUnload)) {
    return chrome::FastUnloadController::ShouldRunUnloadEventsHelper(contents);
  }
  return chrome::UnloadController::ShouldRunUnloadEventsHelper(contents);
}

bool BrowserTabStripModelDelegate::CanBookmarkAllTabs() const {
  return chrome::CanBookmarkAllTabs(browser_);
}

void BrowserTabStripModelDelegate::BookmarkAllTabs() {
  chrome::BookmarkAllTabs(browser_);
}

TabStripModelDelegate::RestoreTabType
BrowserTabStripModelDelegate::GetRestoreTabType() {
  return chrome::GetRestoreTabType(browser_);
}

void BrowserTabStripModelDelegate::RestoreTab() {
  chrome::RestoreTab(browser_);
}

////////////////////////////////////////////////////////////////////////////////
// BrowserTabStripModelDelegate, private:

void BrowserTabStripModelDelegate::CloseFrame() {
  browser_->window()->Close();
}

}  // namespace chrome