Lands http://codereview.chromium.org/306039 for Sean:

Adding support for constrained dialogs with toolkit_views.

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/322002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@29778 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 63 insertions, 0 deletions

diff --git a/chrome/browser/views/tab_contents/tab_contents_view_gtk.cc b/chrome/browser/views/tab_contents/tab_contents_view_gtk.cc
index 7cb7bdb..f466290 100644
--- a/chrome/browser/views/tab_contents/tab_contents_view_gtk.cc
+++ b/chrome/browser/views/tab_contents/tab_contents_view_gtk.cc
@@ -14,6 +14,7 @@
 #include "base/gfx/size.h"
 #include "build/build_config.h"
 #include "chrome/browser/download/download_shelf.h"
+#include "chrome/browser/gtk/constrained_window_gtk.h"
 #include "chrome/browser/gtk/tab_contents_drag_source.h"
 #include "chrome/browser/renderer_host/render_view_host.h"
 #include "chrome/browser/renderer_host/render_view_host_factory.h"
@@ -121,6 +122,29 @@ TabContentsViewGtk::~TabContentsViewGtk() {
   CloseNow();
 }
 
+void TabContentsViewGtk::AttachConstrainedWindow(
+    ConstrainedWindowGtk* constrained_window) {
+  DCHECK(find(constrained_windows_.begin(), constrained_windows_.end(),
+              constrained_window) == constrained_windows_.end());
+
+  constrained_windows_.push_back(constrained_window);
+  AddChild(constrained_window->widget());
+
+  gfx::Rect bounds;
+  GetContainerBounds(&bounds);
+  SetFloatingPosition(bounds.size());
+}
+
+void TabContentsViewGtk::RemoveConstrainedWindow(
+    ConstrainedWindowGtk* constrained_window) {
+  std::vector<ConstrainedWindowGtk*>::iterator item =
+      find(constrained_windows_.begin(), constrained_windows_.end(),
+           constrained_window);
+  DCHECK(item != constrained_windows_.end());
+  RemoveChild((*item)->widget());
+  constrained_windows_.erase(item);
+}
+
 void TabContentsViewGtk::CreateView(const gfx::Size& initial_size) {
   set_delete_on_destroy(false);
   WidgetGtk::Init(NULL, gfx::Rect(0, 0, initial_size.width(),
@@ -378,4 +402,25 @@ void TabContentsViewGtk::WasSized(const gfx::Size& size) {
 
   // TODO(brettw) this function can probably be moved to this class.
   tab_contents()->RepositionSupressedPopupsToFit();
+
+  SetFloatingPosition(size);
 }
+
+void TabContentsViewGtk::SetFloatingPosition(const gfx::Size& size) {
+  // Place each ConstrainedWindow in the center of the view.
+  int half_view_width = size.width() / 2;
+
+  typedef std::vector<ConstrainedWindowGtk*>::iterator iterator;
+
+  for (iterator f = constrained_windows_.begin(),
+                l = constrained_windows_.end(); f != l; ++f) {
+    GtkWidget* widget = (*f)->widget();
+
+    GtkRequisition requisition;
+    gtk_widget_size_request(widget, &requisition);
+
+    int child_x = std::max(half_view_width - (requisition.width / 2), 0);
+    PositionChild(widget, child_x, 0, requisition.width, requisition.height);
+  }
+}
+
diff --git a/chrome/browser/views/tab_contents/tab_contents_view_gtk.h b/chrome/browser/views/tab_contents/tab_contents_view_gtk.h
index 142c7b3..7177737 100644
--- a/chrome/browser/views/tab_contents/tab_contents_view_gtk.h
+++ b/chrome/browser/views/tab_contents/tab_contents_view_gtk.h
@@ -5,11 +5,15 @@
 #ifndef CHROME_BROWSER_VIEWS_TAB_CONTENTS_TAB_CONTENTS_VIEW_GTK_H_
 #define CHROME_BROWSER_VIEWS_TAB_CONTENTS_TAB_CONTENTS_VIEW_GTK_H_
 
+#include <vector>
+
 #include "base/gfx/size.h"
 #include "base/scoped_ptr.h"
 #include "chrome/browser/tab_contents/tab_contents_view.h"
 #include "views/widget/widget_gtk.h"
 
+class ConstrainedWindowGtk;
+typedef struct _GtkFloatingContainer GtkFloatingContainer;
 class RenderViewContextMenuWin;
 class SadTabView;
 class TabContentsDragSource;
@@ -30,6 +34,11 @@ class TabContentsViewGtk : public TabContentsView,
   explicit TabContentsViewGtk(TabContents* tab_contents);
   virtual ~TabContentsViewGtk();
 
+  // Unlike Windows, ConstrainedWindows need to collaborate with the
+  // TabContentsViewGtk to position the dialogs.
+  void AttachConstrainedWindow(ConstrainedWindowGtk* constrained_window);
+  void RemoveConstrainedWindow(ConstrainedWindowGtk* constrained_window);
+
   // TabContentsView implementation --------------------------------------------
 
   virtual void CreateView(const gfx::Size& initial_size);
@@ -73,6 +82,11 @@ class TabContentsViewGtk : public TabContentsView,
   // of the change, reposition popups, and the find in page bar.
   void WasSized(const gfx::Size& size);
 
+  // For any floating views (ConstrainedDialogs) this function centers them
+  // within this view. It's called whem a ConstrainedDialog is attached and
+  // when this view is resized.
+  void SetFloatingPosition(const gfx::Size& size);
+
   // ---------------------------------------------------------------------------
 
   // Used to render the sad tab. This will be non-NULL only when the sad tab is
@@ -101,6 +115,10 @@ class TabContentsViewGtk : public TabContentsView,
   // Current size. See comment in WidgetGtk as to why this is cached.
   gfx::Size size_;
 
+  // Each individual UI for constrained dialogs currently displayed. The
+  // objects in this vector are owned by the TabContents, not the view.
+  std::vector<ConstrainedWindowGtk*> constrained_windows_;
+
   DISALLOW_COPY_AND_ASSIGN(TabContentsViewGtk);
 };