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      1 // Copyright (c) 2011 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/confirm_infobar.h"
      6 
      7 #include "chrome/browser/tab_contents/confirm_infobar_delegate.h"
      8 #include "chrome/browser/ui/views/event_utils.h"
      9 #include "views/controls/button/text_button.h"
     10 #include "views/controls/label.h"
     11 
     12 // ConfirmInfoBarDelegate -----------------------------------------------------
     13 
     14 InfoBar* ConfirmInfoBarDelegate::CreateInfoBar() {
     15   return new ConfirmInfoBar(this);
     16 }
     17 
     18 // ConfirmInfoBar -------------------------------------------------------------
     19 
     20 ConfirmInfoBar::ConfirmInfoBar(ConfirmInfoBarDelegate* delegate)
     21     : InfoBarView(delegate),
     22       label_(NULL),
     23       ok_button_(NULL),
     24       cancel_button_(NULL),
     25       link_(NULL) {
     26 }
     27 
     28 ConfirmInfoBar::~ConfirmInfoBar() {
     29 }
     30 
     31 void ConfirmInfoBar::Layout() {
     32   InfoBarView::Layout();
     33 
     34   int available_width = std::max(0, EndX() - StartX() - ContentMinimumWidth());
     35   gfx::Size label_size = label_->GetPreferredSize();
     36   label_->SetBounds(StartX(), OffsetY(label_size),
     37       std::min(label_size.width(), available_width), label_size.height());
     38   available_width = std::max(0, available_width - label_size.width());
     39 
     40   int button_x = label_->bounds().right() + kEndOfLabelSpacing;
     41   if (ok_button_ != NULL) {
     42     gfx::Size ok_size = ok_button_->GetPreferredSize();
     43     ok_button_->SetBounds(button_x, OffsetY(ok_size), ok_size.width(),
     44                           ok_size.height());
     45     button_x += ok_size.width() + kButtonButtonSpacing;
     46   }
     47 
     48   if (cancel_button_ != NULL) {
     49     gfx::Size cancel_size = cancel_button_->GetPreferredSize();
     50     cancel_button_->SetBounds(button_x, OffsetY(cancel_size),
     51                               cancel_size.width(), cancel_size.height());
     52   }
     53 
     54   if (link_ != NULL) {
     55     gfx::Size link_size = link_->GetPreferredSize();
     56     int link_width = std::min(link_size.width(), available_width);
     57     link_->SetBounds(EndX() - link_width, OffsetY(link_size), link_width,
     58                      link_size.height());
     59   }
     60 }
     61 
     62 void ConfirmInfoBar::ViewHierarchyChanged(bool is_add,
     63                                           View* parent,
     64                                           View* child) {
     65   if (is_add && child == this && (label_ == NULL)) {
     66     ConfirmInfoBarDelegate* delegate = GetDelegate();
     67     label_ = CreateLabel(delegate->GetMessageText());
     68     AddChildView(label_);
     69 
     70     if (delegate->GetButtons() & ConfirmInfoBarDelegate::BUTTON_OK) {
     71       ok_button_ = CreateTextButton(this,
     72           delegate->GetButtonLabel(ConfirmInfoBarDelegate::BUTTON_OK),
     73           delegate->NeedElevation(ConfirmInfoBarDelegate::BUTTON_OK));
     74       AddChildView(ok_button_);
     75     }
     76 
     77     if (delegate->GetButtons() & ConfirmInfoBarDelegate::BUTTON_CANCEL) {
     78       cancel_button_ = CreateTextButton(this,
     79           delegate->GetButtonLabel(ConfirmInfoBarDelegate::BUTTON_CANCEL),
     80           delegate->NeedElevation(ConfirmInfoBarDelegate::BUTTON_CANCEL));
     81       AddChildView(cancel_button_);
     82     }
     83 
     84     string16 link_text(delegate->GetLinkText());
     85     if (!link_text.empty()) {
     86       link_ = CreateLink(link_text, this, background()->get_color());
     87       AddChildView(link_);
     88     }
     89   }
     90 
     91   // This must happen after adding all other children so InfoBarView can ensure
     92   // the close button is the last child.
     93   InfoBarView::ViewHierarchyChanged(is_add, parent, child);
     94 }
     95 
     96 void ConfirmInfoBar::ButtonPressed(views::Button* sender,
     97                                    const views::Event& event) {
     98   ConfirmInfoBarDelegate* delegate = GetDelegate();
     99   if ((ok_button_ != NULL) && sender == ok_button_) {
    100     if (delegate->Accept())
    101       RemoveInfoBar();
    102   } else if ((cancel_button_ != NULL) && (sender == cancel_button_)) {
    103     if (delegate->Cancel())
    104       RemoveInfoBar();
    105   } else {
    106     InfoBarView::ButtonPressed(sender, event);
    107   }
    108 }
    109 
    110 int ConfirmInfoBar::ContentMinimumWidth() const {
    111   int width = (link_ == NULL) ? 0 : kEndOfLabelSpacing;  // Space before link
    112   int before_cancel_spacing = kEndOfLabelSpacing;
    113   if (ok_button_ != NULL) {
    114     width += kEndOfLabelSpacing + ok_button_->GetPreferredSize().width();
    115     before_cancel_spacing = kButtonButtonSpacing;
    116   }
    117   return width + ((cancel_button_ == NULL) ? 0 :
    118       (before_cancel_spacing + cancel_button_->GetPreferredSize().width()));
    119 }
    120 
    121 void ConfirmInfoBar::LinkActivated(views::Link* source, int event_flags) {
    122   DCHECK(link_ != NULL);
    123   DCHECK_EQ(link_, source);
    124   if (GetDelegate()->LinkClicked(
    125       event_utils::DispositionFromEventFlags(event_flags)))
    126     RemoveInfoBar();
    127 }
    128 
    129 ConfirmInfoBarDelegate* ConfirmInfoBar::GetDelegate() {
    130   return delegate()->AsConfirmInfoBarDelegate();
    131 }
    132