Add new methods to create constrained windows for print preview and release the internal TabConte...

chrome/browser/ui/views/constrained_html_delegate_gtk.cc

 // Copyright (c) 2011 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/webui/constrained_html_ui.h"
 
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/gtk/constrained_window_gtk.h"
 #include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
 #include "chrome/browser/ui/views/tab_contents/tab_contents_container.h"
 #include "chrome/browser/ui/webui/html_dialog_tab_contents_delegate.h"
 #include "chrome/browser/ui/webui/html_dialog_ui.h"
 #include "content/browser/tab_contents/tab_contents.h"
 #include "ui/base/gtk/gtk_hig_constants.h"
 #include "ui/gfx/rect.h"
 #include "views/widget/native_widget_gtk.h"
 
 // ConstrainedHtmlDelegateGtk works with ConstrainedWindowGtk to present
 // a TabContents in a ContraintedHtmlUI.
 class ConstrainedHtmlDelegateGtk : public views::NativeWidgetGtk,
                                    public ConstrainedHtmlUIDelegate,
                                    public ConstrainedWindowGtkDelegate,
                                    public HtmlDialogTabContentsDelegate {
  public:
   ConstrainedHtmlDelegateGtk(Profile* profile,
                              HtmlDialogUIDelegate* delegate);
   ~ConstrainedHtmlDelegateGtk();
 
+  TabContentsWrapper* tab() {
+    return html_tab_contents_.get();
+  }
+
   // ConstrainedHtmlUIDelegate interface.
   virtual HtmlDialogUIDelegate* GetHtmlDialogUIDelegate() OVERRIDE;
   virtual void OnDialogCloseFromWebUI() OVERRIDE;
-  virtual bool GetBackgroundColor(GdkColor* color) OVERRIDE {
-    *color = ui::kGdkWhite;
-    return true;
+  virtual void ReleaseTabContentsOnDialogClose() OVERRIDE {
+    release_tab_on_close_ = true;
   }
 
   // ConstrainedWindowGtkDelegate implementation.
   virtual GtkWidget* GetWidgetRoot() OVERRIDE {
     return GetNativeView();
   }
   virtual GtkWidget* GetFocusWidget() OVERRIDE {
-    return html_tab_contents_.GetContentNativeView();
+    return html_tab_contents_->tab_contents()->GetContentNativeView();
   }
   virtual void DeleteDelegate() OVERRIDE {
     if (!closed_via_webui_)
       html_delegate_->OnDialogClosed("");
     tab_container_->ChangeTabContents(NULL);
   }
+  virtual bool GetBackgroundColor(GdkColor* color) OVERRIDE {
+    *color = ui::kGdkWhite;
+    return true;
+  }
   virtual bool ShouldHaveBorderPadding() const OVERRIDE {
     return false;
   }
 
   // HtmlDialogTabContentsDelegate interface.
   void HandleKeyboardEvent(const NativeWebKeyboardEvent& event) OVERRIDE {}
 
   void set_window(ConstrainedWindow* window) {
     window_ = window;
   }
 
  private:
-  TabContents html_tab_contents_;
+  scoped_ptr<TabContentsWrapper> html_tab_contents_;
   TabContentsContainer* tab_container_;
 
   HtmlDialogUIDelegate* html_delegate_;
 
   // The constrained window that owns |this|.  Saved so we can close it later.
   ConstrainedWindow* window_;
 
   // Was the dialog closed from WebUI (in which case |html_delegate_|'s
   // OnDialogClosed() method has already been called)?
   bool closed_via_webui_;
+
+  // If true, release |tab_| on close instead of destroying it.
+  bool release_tab_on_close_;
 };
 
 ConstrainedHtmlDelegateGtk::ConstrainedHtmlDelegateGtk(
     Profile* profile,
     HtmlDialogUIDelegate* delegate)
     : views::NativeWidgetGtk(new views::Widget),
       HtmlDialogTabContentsDelegate(profile),
-      html_tab_contents_(profile, NULL, MSG_ROUTING_NONE, NULL, NULL),
       tab_container_(NULL),
       html_delegate_(delegate),
       window_(NULL),
       closed_via_webui_(false) {
   CHECK(delegate);
-  html_tab_contents_.set_delegate(this);
+  TabContents* tab_contents =
+      new TabContents(profile, NULL, MSG_ROUTING_NONE, NULL, NULL);
+  html_tab_contents_.reset(new TabContentsWrapper(tab_contents));
+  tab_contents->set_delegate(this);
 
   // Set |this| as a property so the ConstrainedHtmlUI can retrieve it.
   ConstrainedHtmlUI::GetPropertyAccessor().SetProperty(
-      html_tab_contents_.property_bag(), this);
-  html_tab_contents_.controller().LoadURL(delegate->GetDialogContentURL(),
-                                          GURL(),
-                                          PageTransition::START_PAGE,
-                                          std::string());
+      tab_contents->property_bag(), this);
+  tab_contents->controller().LoadURL(delegate->GetDialogContentURL(), GURL(),
+                                     PageTransition::START_PAGE, std::string());
 
   views::Widget::InitParams params(views::Widget::InitParams::TYPE_CONTROL);
   params.native_widget = this;
   GetWidget()->Init(params);
 
   tab_container_ = new TabContentsContainer;
   GetWidget()->SetContentsView(tab_container_);
-  tab_container_->ChangeTabContents(&html_tab_contents_);
+  tab_container_->ChangeTabContents(html_tab_contents_->tab_contents());
 
   gfx::Size dialog_size;
   html_delegate_->GetDialogSize(&dialog_size);
   gtk_widget_set_size_request(GetWidgetRoot(),
                               dialog_size.width(),
                               dialog_size.height());
 }
 
 ConstrainedHtmlDelegateGtk::~ConstrainedHtmlDelegateGtk() {
 }
@@ skipping 12 matching lines @@
     Profile* profile,
     HtmlDialogUIDelegate* delegate,
     TabContentsWrapper* wrapper) {
   ConstrainedHtmlDelegateGtk* constrained_delegate =
       new ConstrainedHtmlDelegateGtk(profile, delegate);
   ConstrainedWindow* constrained_window =
       new ConstrainedWindowGtk(wrapper, constrained_delegate);
   constrained_delegate->set_window(constrained_window);
   return constrained_window;
 }
+
+// static
+TabContentsWrapper* ConstrainedHtmlUI::CreateConstrainedPrintPreviewHtmlUI(
+    Profile* profile,
+    HtmlDialogUIDelegate* delegate,
+    TabContentsWrapper* wrapper) {
+  ConstrainedHtmlDelegateGtk* constrained_delegate =
+      new ConstrainedHtmlDelegateGtk(profile, delegate);
+  ConstrainedWindow* constrained_window =
+      new ConstrainedWindowGtk(wrapper, constrained_delegate);
+  constrained_delegate->set_window(constrained_window);
+  return constrained_delegate->tab();
+}