src/chrome/browser/ui/gtk/validation_message_bubble_gtk.cc

   1 // Copyright (c) 2013 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/validation_message_bubble.h"
   6
   7 #include "base/strings/utf_string_conversions.h"
   8 #include "chrome/browser/profiles/profile.h"
   9 #include "chrome/browser/ui/gtk/bubble/bubble_gtk.h"
  10 #include "chrome/browser/ui/gtk/gtk_theme_service.h"
  11 #include "chrome/browser/ui/gtk/gtk_util.h"
  12 #include "content/public/browser/render_view_host.h"
  13 #include "content/public/browser/render_widget_host_view.h"
  14 #include "content/public/browser/web_contents.h"
  15 #include "grit/theme_resources.h"
  16 #include "ui/base/resource/resource_bundle.h"
  17 #include "ui/gfx/gtk_util.h"
  18 #include "ui/gfx/image/image_skia.h"
  19 #include "ui/gfx/rect.h"
  20
  21 namespace {
  22
  23 const int kPadding = 4;
  24 const int kIconTextMargin = 8;
  25 const int kTextMargin = 4;
  26 const int kTextMaxWidth = 256;
  27
  28 // A GTK implementation of ValidationMessageBubble.
  29 class ValidationMessageBubbleGtk : public chrome::ValidationMessageBubble,
  30                                    public BubbleDelegateGtk {
  31  public:
  32   ValidationMessageBubbleGtk(content::RenderWidgetHost* widget_host,
  33                              const gfx::Rect& anchor_in_screen,
  34                              const base::string16& main_text,
  35                              const base::string16& sub_text);
  36   virtual ~ValidationMessageBubbleGtk();
  37   virtual void SetPositionRelativeToAnchor(
  38       content::RenderWidgetHost* widget_host,
  39       const gfx::Rect& anchor_in_root_view) OVERRIDE;
  40
  41   // BubbleDelegateGtk override:
  42   virtual void BubbleClosing(BubbleGtk*, bool) OVERRIDE;
  43
  44  private:
  45   static GtkWidget* ConstructContent(const base::string16& main_text,
  46                                      const base::string16& sub_text);
  47
  48   BubbleGtk* bubble_;
  49 };
  50
  51 ValidationMessageBubbleGtk::ValidationMessageBubbleGtk(
  52     content::RenderWidgetHost* widget_host,
  53     const gfx::Rect& anchor_in_root_view,
  54     const base::string16& main_text,
  55     const base::string16& sub_text)
  56     : bubble_(NULL) {
  57   if (!widget_host->IsRenderView())
  58     return;
  59   Profile* profile = Profile::FromBrowserContext(
  60       content::WebContents::FromRenderViewHost(
  61           content::RenderViewHost::From(widget_host))->GetBrowserContext());
  62   bubble_ = BubbleGtk::Show(widget_host->GetView()->GetNativeView(),
  63                             &anchor_in_root_view,
  64                             ConstructContent(main_text, sub_text),
  65                             BubbleGtk::ANCHOR_TOP_LEFT,
  66                             BubbleGtk::POPUP_WINDOW,
  67                             GtkThemeService::GetFrom(profile),
  68                             this);
  69 }
  70
  71 ValidationMessageBubbleGtk::~ValidationMessageBubbleGtk() {
  72   if (bubble_)
  73     bubble_->Close();
  74 }
  75
  76 void ValidationMessageBubbleGtk::SetPositionRelativeToAnchor(
  77     content::RenderWidgetHost* widget_host,
  78     const gfx::Rect& anchor_in_root_view) {
  79   if (bubble_)
  80     bubble_->SetPositionRelativeToAnchor(&anchor_in_root_view);
  81 }
  82
  83 void ValidationMessageBubbleGtk::BubbleClosing(BubbleGtk*, bool) {
  84   bubble_ = NULL;
  85 }
  86
  87 // static
  88 GtkWidget* ValidationMessageBubbleGtk::ConstructContent(
  89       const base::string16& main_text, const base::string16& sub_text) {
  90   GtkWidget* icon = gtk_image_new();
  91   gtk_misc_set_alignment(GTK_MISC(icon), 0.5, 0);
  92   gtk_misc_set_padding(GTK_MISC(icon), kPadding, kPadding);
  93   ResourceBundle& bundle = ResourceBundle::GetSharedInstance();
  94   GdkPixbuf* pixbuf = gfx::GdkPixbufFromSkBitmap(
  95       *bundle.GetImageSkiaNamed(IDR_INPUT_ALERT)->bitmap());
  96   gtk_image_set_from_pixbuf(GTK_IMAGE(icon), pixbuf);
  97   g_object_unref(pixbuf);
  98   GtkWidget* icon_text_box = gtk_hbox_new(FALSE, kIconTextMargin);
  99   gtk_container_add(GTK_CONTAINER(icon_text_box), icon);
 100
 101   GtkWidget* text_box = gtk_vbox_new(FALSE, kTextMargin);
 102   GtkWidget* label = gtk_label_new(base::UTF16ToUTF8(main_text).c_str());
 103   const gfx::Font& main_font = bundle.GetFont(ResourceBundle::MediumFont);
 104   gtk_util::ForceFontSizePixels(label, main_font.GetHeight());
 105   gtk_box_pack_start(
 106       GTK_BOX(text_box), gtk_util::LeftAlignMisc(label), TRUE, TRUE, 0);
 107
 108   if (!sub_text.empty()) {
 109     GtkWidget* sub_label = gtk_label_new(base::UTF16ToUTF8(sub_text).c_str());
 110     const gfx::Font& sub_font = bundle.GetFont(ResourceBundle::BaseFont);
 111     gtk_util::ForceFontSizePixels(sub_label, sub_font.GetHeight());
 112     int max_characters = kTextMaxWidth / sub_font.GetExpectedTextWidth(1);
 113     if (sub_text.length() > static_cast<size_t>(max_characters))
 114       gtk_util::SetLabelWidth(sub_label, kTextMaxWidth);
 115     gtk_box_pack_start(
 116         GTK_BOX(text_box), gtk_util::LeftAlignMisc(sub_label), TRUE, TRUE, 0);
 117   }
 118   gtk_container_add(GTK_CONTAINER(icon_text_box), text_box);
 119
 120   GtkWidget* content = gtk_alignment_new(0, 0, 0, 0);
 121   gtk_alignment_set_padding(
 122       GTK_ALIGNMENT(content), kPadding, kPadding, kPadding, kPadding);
 123   gtk_container_add(GTK_CONTAINER(content), icon_text_box);
 124   return content;
 125 }
 126
 127 }  // namespace
 128
 129 namespace chrome {
 130
 131 scoped_ptr<ValidationMessageBubble> ValidationMessageBubble::CreateAndShow(
 132     content::RenderWidgetHost* widget_host,
 133     const gfx::Rect& anchor_in_root_view,
 134     const base::string16& main_text,
 135     const base::string16& sub_text) {
 136   return scoped_ptr<ValidationMessageBubble>(new ValidationMessageBubbleGtk(
 137       widget_host, anchor_in_root_view, main_text, sub_text)).Pass();
 138 }
 139
 140 }  // namespace chrome