chrome/browser/ui/views/infobars/alternate_nav_infobar_view.cc

   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/views/infobars/alternate_nav_infobar_view.h"
   6
   7 #include "base/logging.h"
   8 #include "chrome/browser/ui/omnibox/alternate_nav_infobar_delegate.h"
   9 #include "ui/base/window_open_disposition.h"
  10 #include "ui/gfx/text_elider.h"
  11 #include "ui/views/controls/label.h"
  12 #include "ui/views/controls/link.h"
  13
  14
  15 // AlternateNavInfoBarDelegate -------------------------------------------------
  16
  17 // static
  18 scoped_ptr<infobars::InfoBar> AlternateNavInfoBarDelegate::CreateInfoBar(
  19     scoped_ptr<AlternateNavInfoBarDelegate> delegate) {
  20   return make_scoped_ptr(new AlternateNavInfoBarView(delegate.Pass()));
  21 }
  22
  23
  24 // AlternateNavInfoBarView -----------------------------------------------------
  25
  26 AlternateNavInfoBarView::AlternateNavInfoBarView(
  27     scoped_ptr<AlternateNavInfoBarDelegate> delegate)
  28     : InfoBarView(delegate.Pass()),
  29       label_1_(NULL),
  30       link_(NULL),
  31       label_2_(NULL) {
  32 }
  33
  34 AlternateNavInfoBarView::~AlternateNavInfoBarView() {
  35 }
  36
  37 // static
  38 void AlternateNavInfoBarView::ElideLabels(Labels* labels, int available_width) {
  39   views::Label* last_label = labels->back();
  40   labels->pop_back();
  41   int used_width = 0;
  42   for (Labels::iterator i(labels->begin()); i != labels->end(); ++i)
  43     used_width += (*i)->GetPreferredSize().width();
  44   int last_label_width = std::min(last_label->GetPreferredSize().width(),
  45                                   available_width - used_width);
  46   if (last_label_width < last_label->GetMinimumSize().width()) {
  47     last_label_width = 0;
  48     if (!labels->empty())
  49       labels->back()->SetText(labels->back()->text() + gfx::kEllipsisUTF16);
  50   }
  51   last_label->SetSize(gfx::Size(last_label_width, last_label->height()));
  52   if (!labels->empty())
  53     ElideLabels(labels, available_width - last_label_width);
  54 }
  55
  56 void AlternateNavInfoBarView::Layout() {
  57   InfoBarView::Layout();
  58
  59   label_1_->SetText(label_1_text_);
  60   link_->SetText(link_text_);
  61   label_2_->SetText(label_2_text_);
  62   Labels labels;
  63   labels.push_back(label_1_);
  64   labels.push_back(link_);
  65   labels.push_back(label_2_);
  66   ElideLabels(&labels, EndX() - StartX());
  67
  68   label_1_->SetPosition(gfx::Point(StartX(), OffsetY(label_1_)));
  69   link_->SetPosition(gfx::Point(label_1_->bounds().right(), OffsetY(link_)));
  70   label_2_->SetPosition(gfx::Point(link_->bounds().right(), OffsetY(label_2_)));
  71 }
  72
  73 void AlternateNavInfoBarView::ViewHierarchyChanged(
  74     const ViewHierarchyChangedDetails& details) {
  75   if (details.is_add && (details.child == this) && (label_1_ == NULL)) {
  76     AlternateNavInfoBarDelegate* delegate = GetDelegate();
  77     size_t offset;
  78     base::string16 message_text = delegate->GetMessageTextWithOffset(&offset);
  79     DCHECK_NE(base::string16::npos, offset);
  80     label_1_text_ = message_text.substr(0, offset);
  81     label_1_ = CreateLabel(label_1_text_);
  82     AddChildView(label_1_);
  83
  84     link_text_ = delegate->GetLinkText();
  85     link_ = CreateLink(link_text_, this);
  86     AddChildView(link_);
  87
  88     label_2_text_ = message_text.substr(offset);
  89     label_2_ = CreateLabel(label_2_text_);
  90     AddChildView(label_2_);
  91   }
  92
  93   // This must happen after adding all other children so InfoBarView can ensure
  94   // the close button is the last child.
  95   InfoBarView::ViewHierarchyChanged(details);
  96 }
  97
  98 int AlternateNavInfoBarView::ContentMinimumWidth() const {
  99   int label_1_width = label_1_->GetMinimumSize().width();
 100   return label_1_width ? label_1_width : link_->GetMinimumSize().width();
 101 }
 102
 103 void AlternateNavInfoBarView::LinkClicked(views::Link* source,
 104                                           int event_flags) {
 105   if (!owner())
 106     return;  // We're closing; don't call anything, it might access the owner.
 107   DCHECK(link_ != NULL);
 108   DCHECK_EQ(link_, source);
 109   if (GetDelegate()->LinkClicked(ui::DispositionFromEventFlags(event_flags)))
 110     RemoveSelf();
 111 }
 112
 113 AlternateNavInfoBarDelegate* AlternateNavInfoBarView::GetDelegate() {
 114   return static_cast<AlternateNavInfoBarDelegate*>(delegate());
 115 }