content/renderer/renderer_accessibility.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 "content/renderer/renderer_accessibility.h"
   6
   7 #include "base/command_line.h"
   8 #include "content/public/common/content_switches.h"
   9 #include "content/renderer/render_view_impl.h"
  10 #include "third_party/WebKit/Source/WebKit/chromium/public/WebAccessibilityObject.h"
  11 #include "third_party/WebKit/Source/WebKit/chromium/public/WebDocument.h"
  12 #include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
  13 #include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h"
  14
  15 using WebKit::WebAccessibilityNotification;
  16 using WebKit::WebAccessibilityObject;
  17 using WebKit::WebDocument;
  18 using WebKit::WebFrame;
  19 using WebKit::WebView;
  20
  21 namespace content {
  22
  23 RendererAccessibility::RendererAccessibility(
  24     RenderViewImpl* render_view)
  25     : RenderViewObserver(render_view),
  26       render_view_(render_view),
  27       logging_(false) {
  28   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
  29   if (command_line.HasSwitch(switches::kEnableAccessibilityLogging))
  30     logging_ = true;
  31 }
  32
  33 RendererAccessibility::~RendererAccessibility() {
  34 }
  35
  36 WebDocument RendererAccessibility::GetMainDocument() {
  37   WebView* view = render_view()->GetWebView();
  38   WebFrame* main_frame = view ? view->mainFrame() : NULL;
  39
  40   if (main_frame)
  41     return main_frame->document();
  42
  43   return WebDocument();
  44 }
  45
  46 #ifndef NDEBUG
  47 const std::string RendererAccessibility::AccessibilityNotificationToString(
  48     AccessibilityNotification notification) {
  49   switch (notification) {
  50     case AccessibilityNotificationActiveDescendantChanged:
  51       return "active descendant changed";
  52     case AccessibilityNotificationBlur:
  53       return "blur";
  54     case AccessibilityNotificationAlert:
  55       return "alert";
  56     case AccessibilityNotificationCheckStateChanged:
  57       return "check state changed";
  58     case AccessibilityNotificationChildrenChanged:
  59       return "children changed";
  60     case AccessibilityNotificationFocusChanged:
  61       return "focus changed";
  62     case AccessibilityNotificationLayoutComplete:
  63       return "layout complete";
  64     case AccessibilityNotificationLiveRegionChanged:
  65       return "live region changed";
  66     case AccessibilityNotificationLoadComplete:
  67       return "load complete";
  68     case AccessibilityNotificationMenuListValueChanged:
  69       return "menu list changed";
  70     case AccessibilityNotificationObjectShow:
  71       return "object show";
  72     case AccessibilityNotificationObjectHide:
  73       return "object hide";
  74     case AccessibilityNotificationRowCountChanged:
  75       return "row count changed";
  76     case AccessibilityNotificationRowCollapsed:
  77       return "row collapsed";
  78     case AccessibilityNotificationRowExpanded:
  79       return "row expanded";
  80     case AccessibilityNotificationScrolledToAnchor:
  81       return "scrolled to anchor";
  82     case AccessibilityNotificationSelectedChildrenChanged:
  83       return "selected children changed";
  84     case AccessibilityNotificationSelectedTextChanged:
  85       return "selected text changed";
  86     case AccessibilityNotificationTextInserted:
  87       return "text inserted";
  88     case AccessibilityNotificationTextRemoved:
  89       return "text removed";
  90     case AccessibilityNotificationValueChanged:
  91       return "value changed";
  92     default:
  93       NOTREACHED();
  94   }
  95   return "";
  96 }
  97 #endif
  98
  99 }  // namespace content