DevTools: place DevTools WebContents underneath inspected WebContents.

chrome/browser/ui/views/frame/browser_view.cc

 // Copyright 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/frame/browser_view.h"
 
 #include <algorithm>
 
 #include "base/auto_reset.h"
 #include "base/command_line.h"
@@ skipping 50 matching lines @@
 #include "chrome/browser/ui/views/accessibility/invert_bubble_view.h"
 #include "chrome/browser/ui/views/avatar_menu_bubble_view.h"
 #include "chrome/browser/ui/views/avatar_menu_button.h"
 #include "chrome/browser/ui/views/bookmarks/bookmark_bar_view.h"
 #include "chrome/browser/ui/views/bookmarks/bookmark_bubble_view.h"
 #include "chrome/browser/ui/views/browser_dialogs.h"
 #include "chrome/browser/ui/views/download/download_in_progress_dialog_view.h"
 #include "chrome/browser/ui/views/download/download_shelf_view.h"
 #include "chrome/browser/ui/views/frame/browser_view_layout.h"
 #include "chrome/browser/ui/views/frame/browser_view_layout_delegate.h"
-#include "chrome/browser/ui/views/frame/contents_container.h"
+#include "chrome/browser/ui/views/frame/contents_layout_manager.h"
 #include "chrome/browser/ui/views/frame/immersive_mode_controller.h"
 #include "chrome/browser/ui/views/frame/native_browser_frame_factory.h"
 #include "chrome/browser/ui/views/frame/top_container_view.h"
 #include "chrome/browser/ui/views/fullscreen_exit_bubble_views.h"
 #include "chrome/browser/ui/views/infobars/infobar_container_view.h"
 #include "chrome/browser/ui/views/location_bar/location_bar_view.h"
 #include "chrome/browser/ui/views/location_bar/location_icon_view.h"
 #include "chrome/browser/ui/views/omnibox/omnibox_view_views.h"
 #include "chrome/browser/ui/views/password_generation_bubble_view.h"
 #include "chrome/browser/ui/views/profile_chooser_view.h"
@@ skipping 326 matching lines @@
       last_focused_view_storage_id_(
           views::ViewStorage::GetInstance()->CreateStorageID()),
       frame_(NULL),
       top_container_(NULL),
       tabstrip_(NULL),
       toolbar_(NULL),
       window_switcher_button_(NULL),
       find_bar_host_view_(NULL),
       infobar_container_(NULL),
       contents_web_view_(NULL),
-      devtools_container_(NULL),
       contents_container_(NULL),
-      contents_split_(NULL),
-      devtools_dock_side_(DEVTOOLS_DOCK_SIDE_BOTTOM),
       devtools_window_(NULL),
       initialized_(false),
       in_process_fullscreen_(false),
 #if defined(OS_WIN) && !defined(USE_AURA)
       hung_window_detector_(&hung_plugin_action_),
       ticker_(0),
 #endif
       force_location_bar_focus_(false),
       immersive_mode_controller_(chrome::CreateImmersiveModeController()),
 #if defined(OS_CHROMEOS)
@@ skipping 71 matching lines @@
       reinterpret_cast<BrowserView*>(widget->GetNativeWindowProperty(
           kBrowserViewKey)) : NULL;
 }
 
 // static
 BrowserView* BrowserView::GetBrowserViewForBrowser(const Browser* browser) {
   return static_cast<BrowserView*>(browser->window());
 }
 
 void BrowserView::InitStatusBubble() {
-  status_bubble_.reset(new StatusBubbleViews(contents_container_));
+  status_bubble_.reset(new StatusBubbleViews(contents_web_view_));
 }
 
 gfx::Rect BrowserView::GetToolbarBounds() const {
   gfx::Rect toolbar_bounds(toolbar_->bounds());
   if (toolbar_bounds.IsEmpty())
     return toolbar_bounds;
   // The apparent toolbar edges are outside the "real" toolbar edges.
   toolbar_bounds.Inset(-views::NonClientFrameView::kClientEdgeThickness, 0);
   return toolbar_bounds;
 }
@@ skipping 256 matching lines @@
     if (detached_changed && immersive_mode_controller_->IsEnabled())
       change_type = BookmarkBar::DONT_ANIMATE_STATE_CHANGE;
 
     bookmark_bar_view_->SetBookmarkBarState(new_state, change_type);
   }
   if (MaybeShowBookmarkBar(GetActiveWebContents()))
     Layout();
 }
 
 void BrowserView::UpdateDevTools() {
-  UpdateDevToolsForContents(GetActiveWebContents());
+  UpdateDevToolsForContents(GetActiveWebContents(), true);
   Layout();
 }
 
 void BrowserView::UpdateLoadingAnimations(bool should_animate) {
   if (should_animate) {
     if (!loading_animation_timer_.IsRunning()) {
       // Loads are happening, and the timer isn't running, so start it.
       last_animation_time_ = base::TimeTicks::Now();
       loading_animation_timer_.Start(FROM_HERE,
           TimeDelta::FromMilliseconds(kLoadingAnimationFrameTimeMs), this,
@@ skipping 29 matching lines @@
   // the WebContents window.
   bool change_tab_contents =
       contents_web_view_->web_contents() != new_contents;
 
   // Update various elements that are interested in knowing the current
   // WebContents.
 
   // When we toggle the NTP floating bookmarks bar and/or the info bar,
   // we don't want any WebContents to be attached, so that we
   // avoid an unnecessary resize and re-layout of a WebContents.
-  if (change_tab_contents)
+  if (change_tab_contents) {
     contents_web_view_->SetWebContents(NULL);
+    devtools_web_view_->SetWebContents(NULL);
+  }
   infobar_container_->ChangeInfoBarService(
       InfoBarService::FromWebContents(new_contents));
   if (bookmark_bar_view_.get()) {
     bookmark_bar_view_->SetBookmarkBarState(
         browser_->bookmark_bar_state(),
         BookmarkBar::DONT_ANIMATE_STATE_CHANGE);
   }
   UpdateUIForContents(new_contents);
 
-  // Layout for DevTools _before_ setting the main WebContents to avoid
-  // toggling the size of the main WebContents.
-  UpdateDevToolsForContents(new_contents);
+  // Layout for DevTools _before_ setting the both main and devtools WebContents
+  // to avoid toggling the size of any of them.
+  UpdateDevToolsForContents(new_contents, !change_tab_contents);
 
-  if (change_tab_contents)
+  if (change_tab_contents) {
     contents_web_view_->SetWebContents(new_contents);
+    // The second layout update should be no-op. It will just set the
+    // DevTools WebContents.
+    UpdateDevToolsForContents(new_contents, true);
+  }
 
   if (!browser_->tab_strip_model()->closing_all() && GetWidget()->IsActive() &&
       GetWidget()->IsVisible()) {
     // We only restore focus if our window is visible, to avoid invoking blur
     // handlers when we are eventually shown.
     new_contents->GetView()->RestoreFocus();
   }
 
   // Update all the UI bits.
   UpdateTitleBar();
@@ skipping 147 matching lines @@
   }
 
   // When transitioning from animating to not animating we need to make sure the
   // contents_container_ gets layed out. If we don't do this and the bounds
   // haven't changed contents_container_ won't get a Layout out and we'll end up
   // with a gray rect because the clip wasn't updated.  Note that a reentrant
   // call never needs to do this, because after it returns, the normal call
   // wrapping it will do it.
   if ((call_state == NORMAL) && !is_animating) {
     contents_web_view_->InvalidateLayout();
-    contents_split_->Layout();
+    contents_container_->Layout();
   }
 }
 
 LocationBar* BrowserView::GetLocationBar() const {
   return GetLocationBarView();
 }
 
 void BrowserView::SetFocusToLocationBar(bool select_all) {
   // On Windows, changing focus to the location bar causes the browser
   // window to become active. This can steal focus if the user has
@@ skipping 246 matching lines @@
 
 int BrowserView::GetExtraRenderViewHeight() const {
   // Currently this is only used on linux.
   return 0;
 }
 
 void BrowserView::WebContentsFocused(WebContents* contents) {
   if (contents_web_view_->GetWebContents() == contents)
     contents_web_view_->OnWebContentsFocused(contents);
   else
-    devtools_container_->OnWebContentsFocused(contents);
+    devtools_web_view_->OnWebContentsFocused(contents);
 }
 
 void BrowserView::ShowWebsiteSettings(Profile* profile,
                                       content::WebContents* web_contents,
                                       const GURL& url,
                                       const content::SSLStatus& ssl) {
   WebsiteSettingsPopupView::ShowPopup(
       GetLocationBarView()->GetLocationIconView(), profile,
       web_contents, url, ssl, browser_.get());
 }
@@ skipping 164 matching lines @@
 void BrowserView::TabDetachedAt(WebContents* contents, int index) {
   // We use index here rather than comparing |contents| because by this time
   // the model has already removed |contents| from its list, so
   // browser_->GetActiveWebContents() will return NULL or something else.
   if (index == browser_->tab_strip_model()->active_index()) {
     // We need to reset the current tab contents to NULL before it gets
     // freed. This is because the focus manager performs some operations
     // on the selected WebContents when it is removed.
     contents_web_view_->SetWebContents(NULL);
     infobar_container_->ChangeInfoBarService(NULL);
-    UpdateDevToolsForContents(NULL);
+    UpdateDevToolsForContents(NULL, true);
   }
 }
 
 void BrowserView::TabDeactivated(WebContents* contents) {
   // We do not store the focus when closing the tab to work-around bug 4633.
   // Some reports seem to show that the focus manager and/or focused view can
   // be garbage at that point, it is not clear why.
   if (!contents->IsBeingDestroyed())
     contents->GetView()->StoreFocus();
 }
@@ skipping 256 matching lines @@
   // invisible or has no focusable children, it will be automatically
   // skipped.
   panes->push_back(toolbar_);
   if (bookmark_bar_view_.get())
     panes->push_back(bookmark_bar_view_.get());
   if (infobar_container_)
     panes->push_back(infobar_container_);
   if (download_shelf_.get())
     panes->push_back(download_shelf_.get());
   panes->push_back(GetTabContentsContainerView());
-  if (devtools_container_->visible())
-    panes->push_back(devtools_container_);
+  if (devtools_web_view_->visible())
+    panes->push_back(devtools_web_view_);
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 // BrowserView, views::ClientView overrides:
 
 bool BrowserView::CanClose() {
   // You cannot close a frame for which there is an active originating drag
   // session.
   if (tabstrip_ && !tabstrip_->IsTabStripCloseable())
     return false;
@@ skipping 179 matching lines @@
   LoadAccelerators();
 
   infobar_container_ = new InfoBarContainerView(this);
   AddChildView(infobar_container_);
 
   contents_web_view_ = new views::WebView(browser_->profile());
   contents_web_view_->set_id(VIEW_ID_TAB_CONTAINER);
   contents_web_view_->SetEmbedFullscreenWidgetMode(
       implicit_cast<content::WebContentsDelegate*>(browser_.get())->
           EmbedsFullscreenWidget());
-  contents_container_ = new ContentsContainer(contents_web_view_);
 
-  SkColor bg_color = GetWidget()->GetThemeProvider()->
-      GetColor(ThemeProperties::COLOR_TOOLBAR);
+  devtools_web_view_ = new views::WebView(browser_->profile());
+  devtools_web_view_->set_id(VIEW_ID_DEV_TOOLS_DOCKED);
+  devtools_web_view_->SetVisible(false);
 
-  devtools_container_ = new views::WebView(browser_->profile());
-  devtools_container_->set_id(VIEW_ID_DEV_TOOLS_DOCKED);
-  devtools_container_->SetVisible(false);
-
-  views::View* contents_container_view = contents_container_;
-
-  contents_split_ = new views::SingleSplitView(
-      contents_container_view,
-      devtools_container_,
-      views::SingleSplitView::VERTICAL_SPLIT,
-      this);
-  contents_split_->set_id(VIEW_ID_CONTENTS_SPLIT);
-  contents_split_->SetAccessibleName(
-      l10n_util::GetStringUTF16(IDS_ACCNAME_WEB_CONTENTS));
-  contents_split_->set_background(
-      views::Background::CreateSolidBackground(bg_color));
-  AddChildView(contents_split_);
-  set_contents_view(contents_split_);
+  contents_container_ = new views::View();
+  contents_container_->AddChildView(devtools_web_view_);
+  contents_container_->AddChildView(contents_web_view_);
+  contents_container_->SetLayoutManager(new ContentsLayoutManager(
+      devtools_web_view_, contents_web_view_));
+  AddChildView(contents_container_);
+  set_contents_view(contents_container_);
 
   InitStatusBubble();
 
   // Top container holds tab strip and toolbar and lives at the front of the
   // view hierarchy.
   top_container_ = new TopContainerView(this);
   AddChildView(top_container_);
 
   // TabStrip takes ownership of the controller.
   BrowserTabStripController* tabstrip_controller =
@@ skipping 18 matching lines @@
   immersive_mode_controller_->Init(this);
 
   BrowserViewLayout* browser_view_layout = new BrowserViewLayout;
   browser_view_layout->Init(new BrowserViewLayoutDelegateImpl(this),
                             browser(),
                             this,
                             top_container_,
                             tabstrip_,
                             toolbar_,
                             infobar_container_,
-                            contents_split_,
                             contents_container_,
+                            GetContentsLayoutManager(),
                             immersive_mode_controller_.get());
   SetLayoutManager(browser_view_layout);
 
 #if defined(OS_WIN) && !defined(USE_AURA)
   // Create a custom JumpList and add it to an observer of TabRestoreService
   // so we can update the custom JumpList when a tab is added or removed.
   if (JumpList::Enabled()) {
     load_complete_listener_.reset(new LoadCompleteListener(this));
   }
 #endif
@@ skipping 32 matching lines @@
   DCHECK(!jumplist_);
   jumplist_ = new JumpList();
   jumplist_->AddObserver(browser_->profile());
 #endif
 }
 
 BrowserViewLayout* BrowserView::GetBrowserViewLayout() const {
   return static_cast<BrowserViewLayout*>(GetLayoutManager());
 }
 
+ContentsLayoutManager* BrowserView::GetContentsLayoutManager() const {
+  return static_cast<ContentsLayoutManager*>(
+      contents_container_->GetLayoutManager());
+}
+
 void BrowserView::LayoutStatusBubble() {
   // In restored mode, the client area has a client edge between it and the
   // frame.
   int overlap = StatusBubbleViews::kShadowThickness;
   // The extra pixels defined by kClientEdgeThickness is only drawn in frame
   // content border on windows for non-aura build.
 #if !defined(USE_ASH)
   overlap +=
       IsMaximized() ? 0 : views::NonClientFrameView::kClientEdgeThickness;
 #endif
@@ skipping 63 matching lines @@
   }
 }
 
 bool BrowserView::MaybeShowInfoBar(WebContents* contents) {
   // TODO(beng): Remove this function once the interface between
   //             InfoBarContainer, DownloadShelfView and WebContents and this
   //             view is sorted out.
   return true;
 }
 
-void BrowserView::UpdateDevToolsForContents(WebContents* web_contents) {
+void BrowserView::UpdateDevToolsForContents(
+    WebContents* web_contents, bool update_devtools_web_contents) {
   DevToolsWindow* new_devtools_window = web_contents ?
       DevToolsWindow::GetDockedInstanceForInspectedTab(web_contents) : NULL;
-  // Fast return in case of the same window having same orientation.
-  if (devtools_window_ == new_devtools_window) {
-    if (!new_devtools_window ||
-        (new_devtools_window->dock_side() == devtools_dock_side_)) {
-      return;
-    }
+
+  // Replace devtools WebContents.
+  WebContents* new_contents = new_devtools_window ?
+      new_devtools_window->web_contents() : NULL;
+  if (devtools_web_view_->web_contents() != new_contents &&
+      update_devtools_web_contents) {
+    devtools_web_view_->SetWebContents(new_contents);
   }
 
-  // Replace tab contents.
-  if (devtools_window_ != new_devtools_window) {
-    devtools_container_->SetWebContents(
-        new_devtools_window ? new_devtools_window->web_contents() : NULL);
-  }
-
-  // Store last used position.
-  if (devtools_window_) {
-    int split_size = contents_split_->GetDividerSize();
-    if (devtools_dock_side_ == DEVTOOLS_DOCK_SIDE_RIGHT) {
-      devtools_window_->SetWidth(contents_split_->width() -
-          split_size - contents_split_->divider_offset());
-    } else if (devtools_dock_side_ == DEVTOOLS_DOCK_SIDE_BOTTOM) {
-      devtools_window_->SetHeight(contents_split_->height() -
-          split_size - contents_split_->divider_offset());
-    }
-  }
-
-  // Show / hide container if necessary. Changing dock orientation is
-  // hide + show.
-  bool should_hide = devtools_window_ && (!new_devtools_window ||
-      devtools_dock_side_ != new_devtools_window->dock_side());
-  bool should_show = new_devtools_window && (!devtools_window_ || should_hide);
-
-  if (should_hide)
-    HideDevToolsContainer();
-
-  devtools_window_ = new_devtools_window;
-
-  if (should_show) {
-    devtools_dock_side_ = new_devtools_window->dock_side();
-    ShowDevToolsContainer();
-  } else if (new_devtools_window) {
-    UpdateDevToolsSplitPosition();
-    contents_split_->Layout();
-  }
-}
-
-void BrowserView::ShowDevToolsContainer() {
-  if (!devtools_focus_tracker_.get()) {
+  if (!devtools_window_ && new_devtools_window &&
+      !devtools_focus_tracker_.get()) {
     // Install devtools focus tracker when dev tools window is shown for the
     // first time.
     devtools_focus_tracker_.reset(
-        new views::ExternalFocusTracker(devtools_container_,
+        new views::ExternalFocusTracker(devtools_web_view_,
                                         GetFocusManager()));
   }
 
-  gfx::Size min_devtools_size(devtools_window_->GetMinimumWidth(),
-      devtools_window_->GetMinimumHeight());
-  devtools_container_->SetPreferredSize(min_devtools_size);
+  // Restore focus to the last focused view when hiding devtools window.
+  if (devtools_window_ && !new_devtools_window &&
+      devtools_focus_tracker_.get()) {
+    devtools_focus_tracker_->FocusLastFocusedExternalView();
+    devtools_focus_tracker_.reset();
+  }
 
-  devtools_container_->SetVisible(true);
-  devtools_dock_side_ = devtools_window_->dock_side();
-  bool dock_to_right = devtools_dock_side_ == DEVTOOLS_DOCK_SIDE_RIGHT;
-  contents_split_->set_orientation(
-      dock_to_right ? views::SingleSplitView::HORIZONTAL_SPLIT
-                    : views::SingleSplitView::VERTICAL_SPLIT);
-  UpdateDevToolsSplitPosition();
-  contents_split_->InvalidateLayout();
-  Layout();
-}
-
-void BrowserView::HideDevToolsContainer() {
-  // Restore focus to the last focused view when hiding devtools window.
-  devtools_focus_tracker_->FocusLastFocusedExternalView();
-  devtools_container_->SetVisible(false);
-  contents_split_->InvalidateLayout();
-  Layout();
-}
-
-void BrowserView::UpdateDevToolsSplitPosition() {
-  contents_split_->set_resize_disabled(
-      devtools_window_->dock_side() == DEVTOOLS_DOCK_SIDE_MINIMIZED);
-  int split_size = contents_split_->GetDividerSize();
-  if (devtools_window_->dock_side() == DEVTOOLS_DOCK_SIDE_RIGHT) {
-    int split_offset = contents_split_->width() - split_size -
-        devtools_window_->GetWidth(contents_split_->width());
-    contents_split_->set_divider_offset(split_offset);
+  devtools_window_ = new_devtools_window;
+  bool needs_layout = false;
+  if (devtools_window_) {
+    devtools_web_view_->SetPreferredSize(devtools_window_->GetMinimumSize());
+    devtools_web_view_->SetVisible(true);
+    needs_layout = GetContentsLayoutManager()->SetContentsViewOffsets(
+        devtools_window_->GetTopLeftContentsOffset(),
+        devtools_window_->GetBottomRightContentsOffset());
   } else {
-    int height = devtools_window_->dock_side() == DEVTOOLS_DOCK_SIDE_MINIMIZED ?
-        devtools_window_->GetMinimizedHeight() :
-        devtools_window_->GetHeight(contents_split_->height());
-    int split_offset = contents_split_->height() - split_size - height;
-    contents_split_->set_divider_offset(split_offset);
+    devtools_web_view_->SetVisible(false);
+    needs_layout = GetContentsLayoutManager()->SetContentsViewOffsets(
+        gfx::Size(), gfx::Size());
   }
+  if (needs_layout)
+    contents_container_->Layout();
 }
 
 void BrowserView::UpdateUIForContents(WebContents* contents) {
   bool needs_layout = MaybeShowBookmarkBar(contents);
   // TODO(jamescook): This function always returns true. Remove it and figure
   // out when layout is actually required.
   needs_layout |= MaybeShowInfoBar(contents);
   if (needs_layout)
     Layout();
 }
@@ skipping 410 matching lines @@
       !GetLocationBar()->GetOmniboxView()->model()->popup_model()->IsOpen()) {
     gfx::Point icon_bottom(
         toolbar_->location_bar()->GetLocationBarAnchorPoint());
     ConvertPointToTarget(toolbar_->location_bar(), this, &icon_bottom);
     gfx::Point infobar_top(0, infobar_container_->GetVerticalOverlap(NULL));
     ConvertPointToTarget(infobar_container_, this, &infobar_top);
     top_arrow_height = infobar_top.y() - icon_bottom.y();
   }
   return top_arrow_height;
 }