chrome/browser/ui/views/frame/browser_view_layout.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_VIEW_LAYOUT_H_
   6 #define CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_VIEW_LAYOUT_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/compiler_specific.h"
  10 #include "base/gtest_prod_util.h"
  11 #include "base/memory/scoped_ptr.h"
  12 #include "ui/gfx/geometry/rect.h"
  13 #include "ui/views/layout/layout_manager.h"
  14
  15 class BookmarkBarView;
  16 class Browser;
  17 class BrowserViewLayoutDelegate;
  18 class ContentsLayoutManager;
  19 class ImmersiveModeController;
  20 class InfoBarContainerView;
  21 class TabContentsContainer;
  22 class TabStrip;
  23
  24 namespace gfx {
  25 class Point;
  26 class Size;
  27 }
  28
  29 namespace views {
  30 class ClientView;
  31 class SingleSplitView;
  32 }
  33
  34 namespace web_modal {
  35 class WebContentsModalDialogHost;
  36 }
  37
  38 // The layout manager used in chrome browser.
  39 class BrowserViewLayout : public views::LayoutManager {
  40  public:
  41   // The vertical overlap between the TabStrip and the Toolbar.
  42   static const int kToolbarTabStripVerticalOverlap;
  43
  44   BrowserViewLayout();
  45   ~BrowserViewLayout() override;
  46
  47   // Sets all the views to be managed. Takes ownership of |delegate|.
  48   // |browser_view| may be null in tests.
  49   void Init(BrowserViewLayoutDelegate* delegate,
  50             Browser* browser,
  51             views::ClientView* browser_view,
  52             views::View* top_container,
  53             TabStrip* tab_strip,
  54             views::View* toolbar,
  55             InfoBarContainerView* infobar_container,
  56             views::View* contents_container,
  57             ContentsLayoutManager* contents_layout_manager,
  58             ImmersiveModeController* immersive_mode_controller);
  59
  60   // Sets or updates views that are not available when |this| is initialized.
  61   void set_tab_strip(TabStrip* tab_strip) {
  62     tab_strip_ = tab_strip;
  63   }
  64   void set_bookmark_bar(BookmarkBarView* bookmark_bar) {
  65     bookmark_bar_ = bookmark_bar;
  66   }
  67   void set_download_shelf(views::View* download_shelf) {
  68     download_shelf_ = download_shelf;
  69   }
  70
  71   web_modal::WebContentsModalDialogHost* GetWebContentsModalDialogHost();
  72
  73   // Returns the minimum size of the browser view.
  74   gfx::Size GetMinimumSize();
  75
  76   // Returns the bounding box, in widget coordinates,  for the find bar.
  77   gfx::Rect GetFindBarBoundingBox() const;
  78
  79   // Tests to see if the specified |point| (in nonclient view's coordinates)
  80   // is within the views managed by the laymanager. Returns one of
  81   // HitTestCompat enum defined in ui/base/hit_test.h.
  82   // See also ClientView::NonClientHitTest.
  83   int NonClientHitTest(const gfx::Point& point);
  84
  85   // views::LayoutManager overrides:
  86   void Layout(views::View* host) override;
  87   gfx::Size GetPreferredSize(const views::View* host) const override;
  88
  89  private:
  90   FRIEND_TEST_ALL_PREFIXES(BrowserViewLayoutTest, BrowserViewLayout);
  91   FRIEND_TEST_ALL_PREFIXES(BrowserViewLayoutTest, Layout);
  92   FRIEND_TEST_ALL_PREFIXES(BrowserViewLayoutTest, LayoutDownloadShelf);
  93   class WebContentsModalDialogHostViews;
  94
  95   Browser* browser() { return browser_; }
  96
  97   // Layout the following controls, starting at |top|, returns the coordinate
  98   // of the bottom of the control, for laying out the next control.
  99   int LayoutTabStripRegion(int top);
 100   int LayoutToolbar(int top);
 101   int LayoutBookmarkAndInfoBars(int top, int browser_view_y);
 102   int LayoutBookmarkBar(int top);
 103   int LayoutInfoBar(int top);
 104
 105   // Layout the |contents_container_| view between the coordinates |top| and
 106   // |bottom|. See browser_view.h for details of the relationship between
 107   // |contents_container_| and other views.
 108   void LayoutContentsContainerView(int top, int bottom);
 109
 110   // Updates |top_container_|'s bounds. The new bounds depend on the size of
 111   // the bookmark bar and the toolbar.
 112   void UpdateTopContainerBounds();
 113
 114   // Returns the vertical offset for the web contents to account for a
 115   // detached bookmarks bar.
 116   int GetContentsOffsetForBookmarkBar();
 117
 118   // Returns the top margin to adjust the contents_container_ by. This is used
 119   // to make the bookmark bar and contents_container_ overlap so that the
 120   // preview contents hides the bookmark bar.
 121   int GetTopMarginForActiveContent();
 122
 123   // Layout the Download Shelf, returns the coordinate of the top of the
 124   // control, for laying out the previous control.
 125   int LayoutDownloadShelf(int bottom);
 126
 127   // Returns true if an infobar is showing.
 128   bool InfobarVisible() const;
 129
 130   // The delegate interface. May be a mock in tests.
 131   scoped_ptr<BrowserViewLayoutDelegate> delegate_;
 132
 133   // The browser from the owning BrowserView.
 134   Browser* browser_;
 135
 136   // The owning browser view.
 137   views::ClientView* browser_view_;
 138
 139   // Child views that the layout manager manages.
 140   // NOTE: If you add a view, try to add it as a views::View, which makes
 141   // testing much easier.
 142   views::View* top_container_;
 143   TabStrip* tab_strip_;
 144   views::View* toolbar_;
 145   BookmarkBarView* bookmark_bar_;
 146   InfoBarContainerView* infobar_container_;
 147   views::View* contents_container_;
 148   ContentsLayoutManager* contents_layout_manager_;
 149   views::View* download_shelf_;
 150
 151   ImmersiveModeController* immersive_mode_controller_;
 152
 153   // The bounds within which the vertically-stacked contents of the BrowserView
 154   // should be laid out within. This is just the local bounds of the
 155   // BrowserView.
 156   // TODO(jamescook): Remove this and just use browser_view_->GetLocalBounds().
 157   gfx::Rect vertical_layout_rect_;
 158
 159   // The host for use in positioning the web contents modal dialog.
 160   scoped_ptr<WebContentsModalDialogHostViews> dialog_host_;
 161
 162   // The latest dialog bounds applied during a layout pass.
 163   gfx::Rect latest_dialog_bounds_;
 164
 165   // The distance the web contents modal dialog is from the top of the window,
 166   // in pixels.
 167   int web_contents_modal_dialog_top_y_;
 168
 169   DISALLOW_COPY_AND_ASSIGN(BrowserViewLayout);
 170 };
 171
 172 #endif  // CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_VIEW_LAYOUT_H_