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      1 // Copyright 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 #include "chrome/browser/ui/webui/constrained_web_dialog_delegate_base.h"
      6 
      7 #include <gdk/gdk.h>
      8 #include <gtk/gtk.h>
      9 
     10 #include "chrome/browser/ui/gtk/constrained_window_gtk.h"
     11 #include "components/web_modal/web_contents_modal_dialog_manager.h"
     12 #include "content/public/browser/notification_source.h"
     13 #include "content/public/browser/render_view_host.h"
     14 #include "content/public/browser/web_contents.h"
     15 #include "content/public/browser/web_contents_view.h"
     16 #include "ui/base/gtk/gtk_hig_constants.h"
     17 #include "ui/base/gtk/gtk_signal.h"
     18 #include "ui/gfx/size.h"
     19 #include "ui/web_dialogs/web_dialog_delegate.h"
     20 #include "ui/web_dialogs/web_dialog_ui.h"
     21 
     22 using content::WebContents;
     23 using ui::WebDialogDelegate;
     24 using ui::WebDialogWebContentsDelegate;
     25 using web_modal::WebContentsModalDialogManager;
     26 
     27 namespace {
     28 
     29 class ConstrainedWebDialogDelegateGtk
     30     : public ConstrainedWebDialogDelegateBase {
     31  public:
     32   ConstrainedWebDialogDelegateGtk(
     33       content::BrowserContext* browser_context,
     34       WebDialogDelegate* delegate,
     35       WebDialogWebContentsDelegate* tab_delegate)
     36       : ConstrainedWebDialogDelegateBase(
     37             browser_context, delegate, tab_delegate),
     38         window_(NULL) {}
     39 
     40   // WebDialogWebContentsDelegate interface.
     41   virtual void CloseContents(WebContents* source) OVERRIDE {
     42     gtk_widget_destroy(window_);
     43   }
     44 
     45   void set_window(GtkWidget* window) { window_ = window; }
     46   GtkWidget* window() const { return window_; }
     47 
     48  private:
     49   GtkWidget* window_;
     50 
     51   DISALLOW_COPY_AND_ASSIGN(ConstrainedWebDialogDelegateGtk);
     52 };
     53 
     54 void SetBackgroundColor(GtkWidget* widget, const GdkColor &color) {
     55   gtk_widget_modify_base(widget, GTK_STATE_NORMAL, &color);
     56   gtk_widget_modify_fg(widget, GTK_STATE_NORMAL, &color);
     57   gtk_widget_modify_bg(widget, GTK_STATE_NORMAL, &color);
     58 }
     59 
     60 }  // namespace
     61 
     62 class ConstrainedWebDialogDelegateViewGtk
     63     : public ConstrainedWebDialogDelegate {
     64  public:
     65   ConstrainedWebDialogDelegateViewGtk(
     66       content::BrowserContext* browser_context,
     67       WebDialogDelegate* delegate,
     68       WebDialogWebContentsDelegate* tab_delegate);
     69 
     70   virtual ~ConstrainedWebDialogDelegateViewGtk() {}
     71 
     72   // ConstrainedWebDialogDelegate interface
     73   virtual const WebDialogDelegate*
     74       GetWebDialogDelegate() const OVERRIDE {
     75     return impl_->GetWebDialogDelegate();
     76   }
     77   virtual WebDialogDelegate* GetWebDialogDelegate() OVERRIDE {
     78     return impl_->GetWebDialogDelegate();
     79   }
     80   virtual void OnDialogCloseFromWebUI() OVERRIDE {
     81     return impl_->OnDialogCloseFromWebUI();
     82   }
     83   virtual void ReleaseWebContentsOnDialogClose() OVERRIDE {
     84     return impl_->ReleaseWebContentsOnDialogClose();
     85   }
     86   virtual web_modal::NativeWebContentsModalDialog GetNativeDialog() OVERRIDE {
     87     return impl_->window();
     88   }
     89   virtual WebContents* GetWebContents() OVERRIDE {
     90     return impl_->GetWebContents();
     91   }
     92 
     93   void SetWindow(GtkWidget* window) {
     94     impl_->set_window(window);
     95   }
     96 
     97   GtkWidget* GetWindow() {
     98     return impl_->window();
     99   }
    100 
    101  private:
    102   CHROMEGTK_CALLBACK_0(ConstrainedWebDialogDelegateViewGtk, void, OnDestroy);
    103 
    104   scoped_ptr<ConstrainedWebDialogDelegateGtk> impl_;
    105 
    106   DISALLOW_COPY_AND_ASSIGN(ConstrainedWebDialogDelegateViewGtk);
    107 };
    108 
    109 ConstrainedWebDialogDelegateViewGtk::ConstrainedWebDialogDelegateViewGtk(
    110     content::BrowserContext* browser_context,
    111     WebDialogDelegate* delegate,
    112     WebDialogWebContentsDelegate* tab_delegate)
    113     : impl_(new ConstrainedWebDialogDelegateGtk(
    114           browser_context,
    115           delegate,
    116           tab_delegate)) {
    117   gfx::Size dialog_size;
    118   delegate->GetDialogSize(&dialog_size);
    119   GtkWidget* contents =
    120       GTK_WIDGET(GetWebContents()->GetView()->GetNativeView());
    121   gtk_widget_set_size_request(contents,
    122                               dialog_size.width(),
    123                               dialog_size.height());
    124 
    125   gtk_widget_show_all(contents);
    126 
    127   g_signal_connect(contents, "destroy", G_CALLBACK(OnDestroyThunk), this);
    128 }
    129 
    130 void ConstrainedWebDialogDelegateViewGtk::OnDestroy(GtkWidget* widget) {
    131   if (!impl_->closed_via_webui())
    132     GetWebDialogDelegate()->OnDialogClosed(std::string());
    133   delete this;
    134 }
    135 
    136 ConstrainedWebDialogDelegate* CreateConstrainedWebDialog(
    137       content::BrowserContext* browser_context,
    138       WebDialogDelegate* delegate,
    139       WebDialogWebContentsDelegate* tab_delegate,
    140       content::WebContents* web_contents) {
    141   ConstrainedWebDialogDelegateViewGtk* constrained_delegate =
    142       new ConstrainedWebDialogDelegateViewGtk(
    143           browser_context, delegate, tab_delegate);
    144   GtkWidget* window =
    145       CreateWebContentsModalDialogGtk(
    146           constrained_delegate->GetWebContents()->GetView()->GetNativeView(),
    147           constrained_delegate->GetWebContents()->GetView()->
    148               GetContentNativeView());
    149   SetBackgroundColor(window, ui::kGdkWhite);
    150   constrained_delegate->SetWindow(window);
    151 
    152   WebContentsModalDialogManager* web_contents_modal_dialog_manager =
    153       WebContentsModalDialogManager::FromWebContents(web_contents);
    154   web_contents_modal_dialog_manager->ShowDialog(window);
    155 
    156   return constrained_delegate;
    157 }
    158