Implement FormManager::LabelForElement and use this to store the field labels.

BUG=none
TEST=FormManagerTest.Labels
Review URL: http://codereview.chromium.org/660154

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@40416 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 23 insertions, 0 deletions

diff --git a/chrome/renderer/form_manager.cc b/chrome/renderer/form_manager.cc
index 743d95c..9731e7a 100644
--- a/chrome/renderer/form_manager.cc
+++ b/chrome/renderer/form_manager.cc
@@ -7,15 +7,23 @@
 #include "base/logging.h"
 #include "base/string_util.h"
 #include "base/stl_util-inl.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebDocument.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebElement.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebFrame.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebLabelElement.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebNode.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebNodeList.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebString.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebVector.h"
 
+using WebKit::WebDocument;
+using WebKit::WebElement;
 using WebKit::WebFormElement;
 using WebKit::WebFrame;
 using WebKit::WebInputElement;
+using WebKit::WebLabelElement;
 using WebKit::WebNode;
+using WebKit::WebNodeList;
 using WebKit::WebString;
 using WebKit::WebVector;
 
@@ -175,6 +183,7 @@ void FormManager::FormElementToFormData(WebFrame* frame,
         !input_element.isEnabledFormControl())
       continue;
 
+    form->labels.push_back(LabelForElement(input_element));
     form->elements.push_back(input_element.nameForAutofill());
     form->values.push_back(input_element.value());
 
@@ -185,3 +194,17 @@ void FormManager::FormElementToFormData(WebFrame* frame,
       form->submit = input_element.nameForAutofill();
   }
 }
+
+// static
+string16 FormManager::LabelForElement(const WebInputElement& element) {
+  WebNodeList labels = element.document().getElementsByTagName("label");
+  for (unsigned i = 0; i < labels.length(); ++i) {
+    WebElement e = labels.item(i).toElement<WebElement>();
+    if (e.hasTagName("label")) {
+      WebLabelElement label = e.toElement<WebLabelElement>();
+      if (label.correspondingControl() == element)
+        return label.innerText();
+    }
+  }
+  return string16();
+}