WIP: Modified AXPosition to work with objects with both embedded object characters and text.

content/browser/accessibility/accessibility_win_browsertest.cc

Index: content/browser/accessibility/accessibility_win_browsertest.cc
diff --git a/content/browser/accessibility/accessibility_win_browsertest.cc b/content/browser/accessibility/accessibility_win_browsertest.cc
index 94a5140ce98136c117b9eeec17a14877fa5da12b..d6d910912f20ab049b817e002677c62df3df42b6 100644
--- a/content/browser/accessibility/accessibility_win_browsertest.cc
+++ b/content/browser/accessibility/accessibility_win_browsertest.cc
@@ -1273,8 +1273,10 @@ IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest, TestMultiLineSetSelection) {
 
 IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest,
                        TestStaticTextSetSelection) {
+  base::win::ScopedComPtr<IAccessible2> paragraph;
   base::win::ScopedComPtr<IAccessibleText> paragraph_text;
-  SetUpSampleParagraph(&paragraph_text);
+  SetUpSampleParagraph(&paragraph);
+  paragraph.QueryInterface(paragraph_text.Receive());
 
   LONG n_characters;
   ASSERT_HRESULT_SUCCEEDED(paragraph_text->get_nCharacters(&n_characters));
@@ -1296,6 +1298,7 @@ IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest,
   EXPECT_EQ(0, start_offset);
   EXPECT_EQ(n_characters, end_offset);
 
+  // Try selecting backwards.
   start_offset = n_characters - 1;
   end_offset = 0;
   EXPECT_HRESULT_SUCCEEDED(
@@ -1307,6 +1310,48 @@ IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest,
   // Start and end offsets are always swapped to be in ascending order.
   EXPECT_EQ(0, start_offset);
   EXPECT_EQ(n_characters - 1, end_offset);
+
+  // Try selecting the whole paragraph via the document object.
+  base::win::ScopedComPtr<IDispatch> dispatch;
+  base::win::ScopedComPtr<IAccessibleText> document;
+  ASSERT_HRESULT_SUCCEEDED(paragraph->get_accParent(dispatch.Receive()));
+  dispatch.QueryInterface(document.Receive());
+  start_offset = 0;
+  end_offset = IA2_TEXT_OFFSET_LENGTH;
+  EXPECT_HRESULT_SUCCEEDED(document->setSelection(0, start_offset, end_offset));
+  waiter.WaitForNotification();
+
+  hr = paragraph_text->get_selection(0, &start_offset, &end_offset);
+  EXPECT_EQ(S_OK, hr);
+  EXPECT_EQ(0, start_offset);
+  EXPECT_EQ(n_characters, end_offset);
+
+  // Try selecting each of the children individually.
+  std::vector<base::win::ScopedVariant> children =
+      GetAllAccessibleChildren(paragraph.get());
+  ASSERT_EQ(6U, children.size());
+  // Last offset is for the end of the last child.
+  LONG child_start_offsets[] = {0, 11, 29, 30, 46, 0, 0};
+  for (size_t i = 0; i < children.size(); ++i) {
+    base::win::ScopedComPtr<IAccessible2> child;
+    base::win::ScopedComPtr<IAccessibleText> child_text;
+    ASSERT_HRESULT_SUCCEEDED(QueryIAccessible2(
+        GetAccessibleFromVariant(paragraph.get(), children[i].AsInput()).get(),
+        child.Receive()));
+    child.QueryInterface(child_text.Receive());
+    LOG(ERROR) << "Nektar: got child " << i;
+
+    start_offset = 0;
+    end_offset = IA2_TEXT_OFFSET_LENGTH;
+    EXPECT_HRESULT_SUCCEEDED(
+        child_text->setSelection(0, start_offset, end_offset));
+    waiter.WaitForNotification();
+
+    hr = paragraph_text->get_selection(0, &start_offset, &end_offset);
+    EXPECT_EQ(S_OK, hr);
+    EXPECT_EQ(child_start_offsets[i], start_offset);
+    EXPECT_EQ(child_start_offsets[i + 1], end_offset);
+  }
 }
 
 IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest,