chrome/browser/ui/cocoa/speech_recognition_bubble_cocoa.mm

   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 #import <Cocoa/Cocoa.h>
   6
   7 #include "chrome/browser/speech/speech_recognition_bubble.h"
   8
   9 #import "base/mac/scoped_nsobject.h"
  10 #include "chrome/browser/ui/browser.h"
  11 #include "chrome/browser/ui/cocoa/browser_window_cocoa.h"
  12 #include "chrome/browser/ui/cocoa/browser_window_controller.h"
  13 #include "chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.h"
  14 #import "chrome/browser/ui/cocoa/speech_recognition_window_controller.h"
  15 #include "content/public/browser/web_contents.h"
  16 #include "content/public/browser/web_contents_view.h"
  17 #include "ui/gfx/image/image_skia_util_mac.h"
  18
  19 using content::WebContents;
  20
  21 namespace {
  22
  23 // A class to bridge between the speech recognition C++ code and the Objective-C
  24 // bubble implementation. See chrome/browser/speech/speech_recognition_bubble.h
  25 // for more information on how this gets used.
  26 class SpeechRecognitionBubbleImpl : public SpeechRecognitionBubbleBase {
  27  public:
  28   SpeechRecognitionBubbleImpl(WebContents* web_contents,
  29                               Delegate* delegate,
  30                               const gfx::Rect& element_rect);
  31   virtual ~SpeechRecognitionBubbleImpl();
  32   virtual void Show() OVERRIDE;
  33   virtual void Hide() OVERRIDE;
  34   virtual void UpdateLayout() OVERRIDE;
  35   virtual void UpdateImage() OVERRIDE;
  36
  37  private:
  38   base::scoped_nsobject<SpeechRecognitionWindowController> window_;
  39   Delegate* delegate_;
  40   gfx::Rect element_rect_;
  41 };
  42
  43 SpeechRecognitionBubbleImpl::SpeechRecognitionBubbleImpl(
  44     WebContents* web_contents,
  45     Delegate* delegate,
  46     const gfx::Rect& element_rect)
  47     : SpeechRecognitionBubbleBase(web_contents),
  48       delegate_(delegate),
  49       element_rect_(element_rect) {
  50 }
  51
  52 SpeechRecognitionBubbleImpl::~SpeechRecognitionBubbleImpl() {
  53   if (window_.get())
  54     [window_.get() close];
  55 }
  56
  57 void SpeechRecognitionBubbleImpl::UpdateImage() {
  58   if (window_.get())
  59     [window_.get() setImage:gfx::NSImageFromImageSkia(icon_image())];
  60 }
  61
  62 void SpeechRecognitionBubbleImpl::Show() {
  63   if (window_.get()) {
  64     [window_.get() show];
  65     return;
  66   }
  67
  68   // Find the screen coordinates for the given tab and position the bubble's
  69   // arrow anchor point inside that to point at the bottom-left of the html
  70   // input element rect if the position is valid, otherwise point it towards
  71   // the page icon in the omnibox.
  72   gfx::NativeView view = GetWebContents()->GetView()->GetNativeView();
  73   NSWindow* parent_window = [view window];
  74   NSRect tab_bounds = [view bounds];
  75   int anchor_x = tab_bounds.origin.x + element_rect_.x() +
  76                  element_rect_.width() - kBubbleTargetOffsetX;
  77   int anchor_y = tab_bounds.origin.y + tab_bounds.size.height -
  78                  element_rect_.y() - element_rect_.height();
  79
  80   NSPoint anchor = NSMakePoint(anchor_x, anchor_y);
  81   if (NSPointInRect(anchor, tab_bounds)) {
  82     // Good, convert to window coordinates.
  83     anchor = [view convertPoint:anchor toView:nil];
  84   } else {
  85     LocationBarViewMac* locationBar =
  86         [[parent_window windowController] locationBarBridge];
  87
  88     if (locationBar) {
  89       anchor = locationBar->GetPageInfoBubblePoint();
  90     } else {
  91       // This is very rare, but possible. Just use the top-left corner.
  92       // See http://crbug.com/119237
  93       anchor = NSMakePoint(NSMinX(tab_bounds), NSMaxY(tab_bounds));
  94       anchor = [view convertPoint:anchor toView:nil];
  95     }
  96   }
  97
  98   anchor = [parent_window convertBaseToScreen:anchor];
  99
 100   window_.reset([[SpeechRecognitionWindowController alloc]
 101       initWithParentWindow:parent_window
 102                   delegate:delegate_
 103                 anchoredAt:anchor]);
 104
 105   UpdateLayout();
 106   [window_.get() show];
 107 }
 108
 109 void SpeechRecognitionBubbleImpl::Hide() {
 110   if (!window_.get())
 111     return;
 112
 113   [window_.get() close];
 114   window_.reset();
 115 }
 116
 117 void SpeechRecognitionBubbleImpl::UpdateLayout() {
 118   if (!window_.get())
 119     return;
 120
 121   [window_.get() updateLayout:display_mode()
 122                   messageText:message_text()
 123                     iconImage:gfx::NSImageFromImageSkia(icon_image())];
 124 }
 125
 126 }  // namespace
 127
 128 SpeechRecognitionBubble* SpeechRecognitionBubble::CreateNativeBubble(
 129     WebContents* web_contents,
 130     Delegate* delegate,
 131     const gfx::Rect& element_rect) {
 132   return new SpeechRecognitionBubbleImpl(web_contents, delegate, element_rect);
 133 }