chrome/browser/ui/cocoa/infobars/confirm_infobar_controller.mm

   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/cocoa/infobars/confirm_infobar_controller.h"
   6
   7 #include "base/logging.h"
   8 #include "base/strings/sys_string_conversions.h"
   9 #include "chrome/browser/infobars/confirm_infobar_delegate.h"
  10 #import "chrome/browser/ui/cocoa/hyperlink_text_view.h"
  11 #include "chrome/browser/ui/cocoa/infobars/infobar_cocoa.h"
  12 #include "third_party/google_toolbox_for_mac/src/AppKit/GTMUILocalizerAndLayoutTweaker.h"
  13 #import "ui/base/cocoa/cocoa_base_utils.h"
  14 #include "ui/base/window_open_disposition.h"
  15
  16 @implementation ConfirmInfoBarController
  17
  18 // Called when someone clicks on the "OK" button.
  19 - (IBAction)ok:(id)sender {
  20   if (![self isOwned])
  21     return;
  22   if ([self delegate]->AsConfirmInfoBarDelegate()->Accept())
  23     [self removeSelf];
  24 }
  25
  26 // Called when someone clicks on the "Cancel" button.
  27 - (IBAction)cancel:(id)sender {
  28   if (![self isOwned])
  29     return;
  30   if ([self delegate]->AsConfirmInfoBarDelegate()->Cancel())
  31     [self removeSelf];
  32 }
  33
  34 // Confirm infobars can have OK and/or cancel buttons, depending on
  35 // the return value of GetButtons().  We create each button if
  36 // required and position them to the left of the close button.
  37 - (void)addAdditionalControls {
  38   ConfirmInfoBarDelegate* delegate =
  39       [self delegate]->AsConfirmInfoBarDelegate();
  40   DCHECK(delegate);
  41   int visibleButtons = delegate->GetButtons();
  42
  43   NSRect okButtonFrame = [okButton_ frame];
  44   NSRect cancelButtonFrame = [cancelButton_ frame];
  45
  46   DCHECK(NSMaxX(cancelButtonFrame) < NSMinX(okButtonFrame))
  47       << "Ok button expected to be on the right of the Cancel button in nib";
  48
  49   CGFloat rightEdge = NSMaxX(okButtonFrame);
  50   CGFloat spaceBetweenButtons =
  51       NSMinX(okButtonFrame) - NSMaxX(cancelButtonFrame);
  52   CGFloat spaceBeforeButtons =
  53       NSMinX(cancelButtonFrame) - NSMaxX([label_.get() frame]);
  54
  55   // Update and position the OK button if needed.  Otherwise, hide it.
  56   if (visibleButtons & ConfirmInfoBarDelegate::BUTTON_OK) {
  57     [okButton_ setTitle:base::SysUTF16ToNSString(
  58           delegate->GetButtonLabel(ConfirmInfoBarDelegate::BUTTON_OK))];
  59     [GTMUILocalizerAndLayoutTweaker sizeToFitView:okButton_];
  60     okButtonFrame = [okButton_ frame];
  61
  62     // Position the ok button to the left of the Close button.
  63     okButtonFrame.origin.x = rightEdge - okButtonFrame.size.width;
  64     [okButton_ setFrame:okButtonFrame];
  65
  66     // Update the rightEdge
  67     rightEdge = NSMinX(okButtonFrame);
  68   } else {
  69     [okButton_ removeFromSuperview];
  70     okButton_ = nil;
  71   }
  72
  73   // Update and position the Cancel button if needed.  Otherwise, hide it.
  74   if (visibleButtons & ConfirmInfoBarDelegate::BUTTON_CANCEL) {
  75     [cancelButton_ setTitle:base::SysUTF16ToNSString(
  76           delegate->GetButtonLabel(ConfirmInfoBarDelegate::BUTTON_CANCEL))];
  77     [GTMUILocalizerAndLayoutTweaker sizeToFitView:cancelButton_];
  78     cancelButtonFrame = [cancelButton_ frame];
  79
  80     // If we had a Ok button, leave space between the buttons.
  81     if (visibleButtons & ConfirmInfoBarDelegate::BUTTON_OK) {
  82       rightEdge -= spaceBetweenButtons;
  83     }
  84
  85     // Position the Cancel button on our current right edge.
  86     cancelButtonFrame.origin.x = rightEdge - cancelButtonFrame.size.width;
  87     [cancelButton_ setFrame:cancelButtonFrame];
  88
  89     // Update the rightEdge.
  90     rightEdge = NSMinX(cancelButtonFrame);
  91   } else {
  92     [cancelButton_ removeFromSuperview];
  93     cancelButton_ = nil;
  94   }
  95
  96   // If we had either button, leave space before the edge of the textfield.
  97   if ((visibleButtons & ConfirmInfoBarDelegate::BUTTON_CANCEL) ||
  98       (visibleButtons & ConfirmInfoBarDelegate::BUTTON_OK)) {
  99     rightEdge -= spaceBeforeButtons;
 100   }
 101
 102   NSRect frame = [label_.get() frame];
 103   DCHECK(rightEdge > NSMinX(frame))
 104       << "Need to make the xib larger to handle buttons with text this long";
 105   frame.size.width = rightEdge - NSMinX(frame);
 106   [label_.get() setFrame:frame];
 107
 108   // Set the text and link.
 109   NSString* message = base::SysUTF16ToNSString(delegate->GetMessageText());
 110   base::string16 link = delegate->GetLinkText();
 111   if (!link.empty()) {
 112     // Add spacing between the label and the link.
 113     message = [message stringByAppendingString:@"   "];
 114   }
 115   NSFont* font = [NSFont labelFontOfSize:
 116       [NSFont systemFontSizeForControlSize:NSRegularControlSize]];
 117   HyperlinkTextView* view = (HyperlinkTextView*)label_.get();
 118   [view setMessageAndLink:message
 119                  withLink:base::SysUTF16ToNSString(link)
 120                  atOffset:[message length]
 121                      font:font
 122              messageColor:[NSColor blackColor]
 123                 linkColor:[NSColor blueColor]];
 124 }
 125
 126 // Called when someone clicks on the link in the infobar.  This method
 127 // is called by the InfobarTextField on its delegate (the
 128 // AlternateNavInfoBarController).
 129 - (void)linkClicked {
 130   if (![self isOwned])
 131     return;
 132   WindowOpenDisposition disposition =
 133       ui::WindowOpenDispositionFromNSEvent([NSApp currentEvent]);
 134   if ([self delegate]->AsConfirmInfoBarDelegate()->LinkClicked(disposition))
 135     [self removeSelf];
 136 }
 137
 138 @end
 139
 140 // static
 141 scoped_ptr<infobars::InfoBar> ConfirmInfoBarDelegate::CreateInfoBar(
 142     scoped_ptr<ConfirmInfoBarDelegate> delegate) {
 143   scoped_ptr<InfoBarCocoa> infobar(
 144       new InfoBarCocoa(delegate.PassAs<infobars::InfoBarDelegate>()));
 145   base::scoped_nsobject<ConfirmInfoBarController> controller(
 146       [[ConfirmInfoBarController alloc] initWithInfoBar:infobar.get()]);
 147   infobar->set_controller(controller);
 148   return infobar.PassAs<infobars::InfoBar>();
 149 }