content/renderer/accessibility/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/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/WebAXObject.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 blink::WebAXObject;
  16 using blink::WebDocument;
  17 using blink::WebFrame;
  18 using blink::WebView;
  19
  20 namespace content {
  21
  22 RendererAccessibility::RendererAccessibility(
  23     RenderViewImpl* render_view)
  24     : RenderViewObserver(render_view),
  25       render_view_(render_view),
  26       logging_(false) {
  27   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
  28   if (command_line.HasSwitch(switches::kEnableAccessibilityLogging))
  29     logging_ = true;
  30 }
  31
  32 RendererAccessibility::~RendererAccessibility() {
  33 }
  34
  35 WebDocument RendererAccessibility::GetMainDocument() {
  36   WebView* view = render_view()->GetWebView();
  37   WebFrame* main_frame = view ? view->mainFrame() : NULL;
  38
  39   if (main_frame)
  40     return main_frame->document();
  41
  42   return WebDocument();
  43 }
  44
  45 #ifndef NDEBUG
  46 const std::string RendererAccessibility::AccessibilityEventToString(
  47     ui::AXEvent event) {
  48   switch (event) {
  49     case ui::AX_EVENT_ACTIVEDESCENDANTCHANGED:
  50       return "active descendant changed";
  51     case ui::AX_EVENT_ARIA_ATTRIBUTE_CHANGED:
  52       return "aria attribute changed";
  53     case ui::AX_EVENT_ALERT:
  54       return "alert";
  55     case ui::AX_EVENT_AUTOCORRECTION_OCCURED:
  56       return "autocorrection occurred";
  57     case ui::AX_EVENT_BLUR:
  58       return "blur";
  59     case ui::AX_EVENT_CHECKED_STATE_CHANGED:
  60       return "check state changed";
  61     case ui::AX_EVENT_CHILDREN_CHANGED:
  62       return "children changed";
  63     case ui::AX_EVENT_FOCUS:
  64       return "focus changed";
  65     case ui::AX_EVENT_HIDE:
  66       return "object hide";
  67     case ui::AX_EVENT_INVALID_STATUS_CHANGED:
  68       return "invalid status changed";
  69     case ui::AX_EVENT_LAYOUT_COMPLETE:
  70       return "layout complete";
  71     case ui::AX_EVENT_LIVE_REGION_CHANGED:
  72       return "live region changed";
  73     case ui::AX_EVENT_LOAD_COMPLETE:
  74       return "load complete";
  75     case ui::AX_EVENT_LOCATION_CHANGED:
  76       return "location changed";
  77     case ui::AX_EVENT_MENU_END:
  78       return "menu end";
  79     case ui::AX_EVENT_MENU_LIST_ITEM_SELECTED:
  80       return "menu list item selected";
  81     case ui::AX_EVENT_MENU_LIST_VALUE_CHANGED:
  82       return "menu list changed";
  83     case ui::AX_EVENT_MENU_POPUP_END:
  84       return "menu popup end";
  85     case ui::AX_EVENT_MENU_POPUP_START:
  86       return "menu popup start";
  87     case ui::AX_EVENT_MENU_START:
  88       return "menu start";
  89     case ui::AX_EVENT_NONE:
  90       return "none";
  91     case ui::AX_EVENT_ROW_COLLAPSED:
  92       return "row collapsed";
  93     case ui::AX_EVENT_ROW_COUNT_CHANGED:
  94       return "row count changed";
  95     case ui::AX_EVENT_ROW_EXPANDED:
  96       return "row expanded";
  97     case ui::AX_EVENT_SCROLL_POSITION_CHANGED:
  98       return "scroll position changed";
  99     case ui::AX_EVENT_SCROLLED_TO_ANCHOR:
 100       return "scrolled to anchor";
 101     case ui::AX_EVENT_SELECTED_CHILDREN_CHANGED:
 102       return "selected children changed";
 103     case ui::AX_EVENT_SELECTED_TEXT_CHANGED:
 104       return "selected text changed";
 105     case ui::AX_EVENT_SELECTION_CHANGED:
 106       return "selection changed";
 107     case ui::AX_EVENT_SHOW:
 108       return "object show";
 109     case ui::AX_EVENT_TEXT_CHANGED:
 110       return "text changed";
 111     case ui::AX_EVENT_TEXT_INSERTED:
 112       return "text inserted";
 113     case ui::AX_EVENT_TEXT_REMOVED:
 114       return "text removed";
 115     case ui::AX_EVENT_VALUE_CHANGED:
 116       return "value changed";
 117     default:
 118       NOTREACHED();
 119   }
 120   return "";
 121 }
 122 #endif
 123
 124 }  // namespace content