chrome/browser/ui/cocoa/infobars/translate_infobar_base.h

   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 #ifndef CHROME_BROWSER_UI_COCOA_INFOBARS_TRANSLATE_INFOBAR_BASE_H_
   6 #define CHROME_BROWSER_UI_COCOA_INFOBARS_TRANSLATE_INFOBAR_BASE_H_
   7
   8 #import <Cocoa/Cocoa.h>
   9
  10 #import "base/mac/scoped_nsobject.h"
  11 #include "base/memory/scoped_ptr.h"
  12 #include "chrome/browser/translate/options_menu_model.h"
  13 #include "chrome/browser/translate/translate_infobar_delegate.h"
  14 #import "chrome/browser/ui/cocoa/infobars/infobar_controller.h"
  15 #include "components/translate/core/common/translate_errors.h"
  16
  17 // The base class for the three translate infobars.  This class does all of the
  18 // heavy UI lifting, while deferring to the subclass to tell it what views
  19 // should be shown and where.  Subclasses need to implement:
  20 // - (void)layout;
  21 // - (void)loadLabelText;
  22 // - (void)visibleControls;
  23 // - (bool)verifyLayout; // For testing.
  24 @interface TranslateInfoBarControllerBase : InfoBarController<NSMenuDelegate> {
  25  @protected
  26   base::scoped_nsobject<NSTextField> label1_;
  27   base::scoped_nsobject<NSTextField> label2_;
  28   base::scoped_nsobject<NSTextField> label3_;
  29   base::scoped_nsobject<NSPopUpButton> fromLanguagePopUp_;
  30   base::scoped_nsobject<NSPopUpButton> toLanguagePopUp_;
  31   base::scoped_nsobject<NSPopUpButton> optionsPopUp_;
  32   base::scoped_nsobject<NSButton> showOriginalButton_;
  33   // This is the button used in the translate message infobar.  It can either be
  34   // a "Try Again" button, or a "Show Original" button in the case that the
  35   // page was translated from an unknown language.
  36   base::scoped_nsobject<NSButton> translateMessageButton_;
  37
  38   // In the current locale, are the "from" and "to" language popup menu
  39   // flipped from what they'd appear in English.
  40   bool swappedLanguagePlaceholders_;
  41
  42   // Space between controls in pixels - read from the NIB.
  43   CGFloat spaceBetweenControls_;
  44
  45   scoped_ptr<OptionsMenuModel> optionsMenuModel_;
  46 }
  47
  48 // Returns the delegate as a TranslateInfoBarDelegate.  The return
  49 // value can be NULL if the infobar is closing.
  50 - (TranslateInfoBarDelegate*)delegate;
  51
  52 // Called when the "Show Original" button is pressed.
  53 - (IBAction)showOriginal:(id)sender;
  54
  55 @end
  56
  57 @interface TranslateInfoBarControllerBase (ProtectedAPI)
  58
  59 // Resizes or hides the options button based on how much space is available
  60 // so that it doesn't overlap other buttons.
  61 // lastView is the rightmost view, the first one that the options button
  62 // would overlap with.
  63 - (void)adjustOptionsButtonSizeAndVisibilityForView:(NSView*)lastView;
  64
  65 // Move all the currently visible views into the correct place for the
  66 // current mode.
  67 // Must be implemented by the subclass.
  68 - (void)layout;
  69
  70 // Loads the text for the 3 labels.  There is only one message, but since
  71 // it has controls separating parts of it, it is separated into 3 separate
  72 // labels.
  73 // Must be implemented by the subclass.
  74 - (void)loadLabelText;
  75
  76 // Returns the controls that are visible in the subclasses infobar.  The
  77 // default implementation returns an empty array. The controls should
  78 // be returned in the order they are displayed, otherwise the layout test
  79 // will fail.
  80 // Must be implemented by the subclass.
  81 - (NSArray*)visibleControls;
  82
  83 // Shows the array of controls provided by the subclass.
  84 - (void)showVisibleControls:(NSArray*)visibleControls;
  85
  86 // Hides the OK and Cancel buttons.
  87 - (void)removeOkCancelButtons;
  88
  89 // Called when the source or target language selection changes in a menu.
  90 // |newLanguageIdx| is the index of the newly selected item in the appropriate
  91 // menu.
  92 - (void)sourceLanguageModified:(NSInteger)newLanguageIdx;
  93 - (void)targetLanguageModified:(NSInteger)newLanguageIdx;
  94
  95 // Called when an item in one of the toolbar's language or options
  96 // menus is selected.
  97 - (void)languageMenuChanged:(id)item;
  98 - (void)optionsMenuChanged:(id)item;
  99
 100 // Teardown and rebuild the options menu.  When the infobar is small, the
 101 // options menu is shrunk to just a drop down arrow, so the title needs
 102 // to be empty.
 103 - (void)rebuildOptionsMenu:(BOOL)hideTitle;
 104
 105 // Whether or not this infobar should show the options popup.
 106 - (BOOL)shouldShowOptionsPopUp;
 107
 108 @end // TranslateInfoBarControllerBase (ProtectedAPI)
 109
 110 #pragma mark TestingAPI
 111
 112 @interface TranslateInfoBarControllerBase (TestingAPI)
 113
 114 // All the controls used in any of the translate states.
 115 // This is used for verifying layout and for setting the
 116 // correct styles on each button.
 117 - (NSArray*)allControls;
 118
 119 // Verifies that the layout of the infobar is correct.
 120 // Must be implmented by the subclass.
 121 - (bool)verifyLayout;
 122
 123 // Returns the underlying options menu.
 124 - (NSMenu*)optionsMenu;
 125
 126 // Returns |translateMessageButton_|, see declaration of member
 127 // variable for a full description.
 128 - (NSButton*)translateMessageButton;
 129
 130 @end // TranslateInfoBarControllerBase (TestingAPI)
 131
 132
 133 #endif // CHROME_BROWSER_UI_COCOA_INFOBARS_TRANSLATE_INFOBAR_BASE_H_