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      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/accessibility/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/public/web/WebAccessibilityObject.h"
     11 #include "third_party/WebKit/public/web/WebDocument.h"
     12 #include "third_party/WebKit/public/web/WebFrame.h"
     13 #include "third_party/WebKit/public/web/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 AccessibilityNotificationAriaAttributeChanged:
     53       return "aria attribute changed";
     54     case AccessibilityNotificationAutocorrectionOccurred:
     55       return "autocorrection occurred";
     56     case AccessibilityNotificationBlur:
     57       return "blur";
     58     case AccessibilityNotificationAlert:
     59       return "alert";
     60     case AccessibilityNotificationCheckStateChanged:
     61       return "check state changed";
     62     case AccessibilityNotificationChildrenChanged:
     63       return "children changed";
     64     case AccessibilityNotificationFocusChanged:
     65       return "focus changed";
     66     case AccessibilityNotificationInvalidStatusChanged:
     67       return "invalid status changed";
     68     case AccessibilityNotificationLayoutComplete:
     69       return "layout complete";
     70     case AccessibilityNotificationLiveRegionChanged:
     71       return "live region changed";
     72     case AccessibilityNotificationLoadComplete:
     73       return "load complete";
     74     case AccessibilityNotificationMenuListItemSelected:
     75       return "menu list item selected";
     76     case AccessibilityNotificationMenuListValueChanged:
     77       return "menu list changed";
     78     case AccessibilityNotificationObjectShow:
     79       return "object show";
     80     case AccessibilityNotificationObjectHide:
     81       return "object hide";
     82     case AccessibilityNotificationRowCountChanged:
     83       return "row count changed";
     84     case AccessibilityNotificationRowCollapsed:
     85       return "row collapsed";
     86     case AccessibilityNotificationRowExpanded:
     87       return "row expanded";
     88     case AccessibilityNotificationScrolledToAnchor:
     89       return "scrolled to anchor";
     90     case AccessibilityNotificationSelectedChildrenChanged:
     91       return "selected children changed";
     92     case AccessibilityNotificationSelectedTextChanged:
     93       return "selected text changed";
     94     case AccessibilityNotificationTextChanged:
     95       return "text changed";
     96     case AccessibilityNotificationTextInserted:
     97       return "text inserted";
     98     case AccessibilityNotificationTextRemoved:
     99       return "text removed";
    100     case AccessibilityNotificationValueChanged:
    101       return "value changed";
    102     default:
    103       NOTREACHED();
    104   }
    105   return "";
    106 }
    107 #endif
    108 
    109 }  // namespace content
    110