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      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 #include "chrome/browser/ui/browser_dialogs.h"
      6 #include "content/public/browser/color_chooser.h"
      7 #include "content/public/browser/web_contents.h"
      8 #include "content/public/browser/web_contents_view.h"
      9 #include "ui/views/color_chooser/color_chooser_listener.h"
     10 #include "ui/views/color_chooser/color_chooser_view.h"
     11 #include "ui/views/widget/widget.h"
     12 
     13 
     14 namespace {
     15 
     16 class ColorChooserAura : public content::ColorChooser,
     17                          public views::ColorChooserListener {
     18  public:
     19   static ColorChooserAura* Open(content::WebContents* web_contents,
     20                                 SkColor initial_color);
     21 
     22   ColorChooserAura(content::WebContents* web_contents, SkColor initial_color);
     23 
     24  private:
     25   static ColorChooserAura* current_color_chooser_;
     26 
     27   // content::ColorChooser overrides:
     28   virtual void End() OVERRIDE;
     29   virtual void SetSelectedColor(SkColor color) OVERRIDE;
     30 
     31   // views::ColorChooserListener overrides:
     32   virtual void OnColorChosen(SkColor color) OVERRIDE;
     33   virtual void OnColorChooserDialogClosed() OVERRIDE;
     34 
     35   void DidEndColorChooser();
     36 
     37   // The actual view of the color chooser.  No ownership because its parent
     38   // view will take care of its lifetime.
     39   views::ColorChooserView* view_;
     40 
     41   // The widget for the color chooser.  No ownership because it's released
     42   // automatically when closed.
     43   views::Widget* widget_;
     44 
     45   // The web contents invoking the color chooser.  No ownership because it will
     46   // outlive this class.
     47   content::WebContents* web_contents_;
     48 
     49   DISALLOW_COPY_AND_ASSIGN(ColorChooserAura);
     50 };
     51 
     52 ColorChooserAura* ColorChooserAura::current_color_chooser_ = NULL;
     53 
     54 ColorChooserAura::ColorChooserAura(content::WebContents* web_contents,
     55                                    SkColor initial_color)
     56     : web_contents_(web_contents) {
     57   view_ = new views::ColorChooserView(this, initial_color);
     58   widget_ = views::Widget::CreateWindowWithContext(
     59       view_, web_contents->GetView()->GetNativeView());
     60   widget_->SetAlwaysOnTop(true);
     61   widget_->Show();
     62 }
     63 
     64 void ColorChooserAura::OnColorChosen(SkColor color) {
     65   if (web_contents_)
     66     web_contents_->DidChooseColorInColorChooser(color);
     67 }
     68 
     69 void ColorChooserAura::OnColorChooserDialogClosed() {
     70   view_ = NULL;
     71   widget_ = NULL;
     72   DidEndColorChooser();
     73 }
     74 
     75 void ColorChooserAura::End() {
     76   if (widget_ && widget_->IsVisible()) {
     77     view_->set_listener(NULL);
     78     widget_->Close();
     79     view_ = NULL;
     80     widget_ = NULL;
     81     // DidEndColorChooser will invoke Browser::DidEndColorChooser, which deletes
     82     // this. Take care of the call order.
     83     DidEndColorChooser();
     84   }
     85 }
     86 
     87 void ColorChooserAura::DidEndColorChooser() {
     88   DCHECK(current_color_chooser_ == this);
     89   current_color_chooser_ = NULL;
     90   if (web_contents_)
     91     web_contents_->DidEndColorChooser();
     92 }
     93 
     94 void ColorChooserAura::SetSelectedColor(SkColor color) {
     95   if (view_)
     96     view_->OnColorChanged(color);
     97 }
     98 
     99 // static
    100 ColorChooserAura* ColorChooserAura::Open(
    101     content::WebContents* web_contents, SkColor initial_color) {
    102   if (current_color_chooser_)
    103     current_color_chooser_->End();
    104   DCHECK(!current_color_chooser_);
    105   current_color_chooser_ = new ColorChooserAura(web_contents, initial_color);
    106   return current_color_chooser_;
    107 }
    108 
    109 }  // namespace
    110 
    111 namespace chrome {
    112 
    113 content::ColorChooser* ShowColorChooser(content::WebContents* web_contents,
    114                                         SkColor initial_color) {
    115   return ColorChooserAura::Open(web_contents, initial_color);
    116 }
    117 
    118 }  // namespace chrome
    119