Implement clipboard features in views textfield.

views/controls/textfield/textfield_views_model_unittest.cc

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include "app/clipboard/clipboard.h"
+#include "base/message_loop.h"
+#include "base/scoped_ptr.h"
 #include "base/utf_string_conversions.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "views/controls/textfield/textfield_views_model.h"
+#include "views/views_delegate.h"
 
 namespace views {
 
+class SimpleViewsDelegate : public views::ViewsDelegate {
+ public:
+  SimpleViewsDelegate() { clipboard_.reset(new Clipboard()); }
+  virtual Clipboard* GetClipboard() const { return clipboard_.get(); }
+  virtual void SaveWindowPlacement(const std::wstring& window_name,
+                                   const gfx::Rect& bounds, bool maximized) {}
+  virtual bool GetSavedWindowBounds(const std::wstring& window_name,
+                                    gfx::Rect* bounds) const { return false; }
+  virtual bool GetSavedMaximizedState(const std::wstring& window_name,
+                                      bool* maximized) const { return false; }
+  virtual void NotifyAccessibilityEvent(
+      views::View* view, AccessibilityTypes::Event event_type) {}
+#if defined(OS_WIN)
+  virtual HICON GetDefaultWindowIcon() const { return 0; }
+#endif
+  virtual void AddRef() {}
+  virtual void ReleaseRef() { MessageLoopForUI::current()->Quit(); }
+
+ private:
+  scoped_ptr<Clipboard> clipboard_;
+  DISALLOW_COPY_AND_ASSIGN(SimpleViewsDelegate);
+};

[oshima, 2011/01/04 22:36:49]

Looks like there are several ViewsDelegate impl for tests.
Don't have to be in this CL, but can you take the one in views_unittest and move
it to views/test?

[varunjain, 2011/01/05 16:19:31]

Done.

+
 #define EXPECT_STR_EQ(ascii, utf16) \
   EXPECT_EQ(ASCIIToWide(ascii), UTF16ToWide(utf16))
 
 TEST(TextfieldViewsModelTest, EditString) {
   TextfieldViewsModel model;
   // append two strings
   model.Append(ASCIIToUTF16("HILL"));
   EXPECT_STR_EQ("HILL", model.text());
   model.Append(ASCIIToUTF16("WORLD"));
   EXPECT_STR_EQ("HILLWORLD", model.text());
@@ skipping 254 matching lines @@
   model.MoveCursorToEnd(false);
   EXPECT_EQ(7U, model.cursor_pos());
 
   model.SetText(ASCIIToUTF16("BYE"));
   EXPECT_EQ(3U, model.cursor_pos());
   EXPECT_EQ(string16(), model.GetSelectedText());
   model.SetText(ASCIIToUTF16(""));
   EXPECT_EQ(0U, model.cursor_pos());
 }
 
+TEST(TextfieldViewsModelTest, Clipboard) {
+  views::ViewsDelegate::views_delegate = new SimpleViewsDelegate();
+  Clipboard* clipboard = views::ViewsDelegate::views_delegate->GetClipboard();
+  string16 clipboard_text;
+  TextfieldViewsModel model;
+
+  // Test for cut.
+  model.Append(ASCIIToUTF16("HELLO WORLD"));
+  model.MoveCursorToEnd(false);
+  model.MoveCursorToPreviousWord(true);
+  EXPECT_TRUE(model.HandleClipboardEvents(app::VKEY_X));
+  clipboard->ReadText(Clipboard::BUFFER_STANDARD, &clipboard_text);
+  EXPECT_STR_EQ("WORLD", clipboard_text);
+  EXPECT_STR_EQ("HELLO ", model.text());
+  EXPECT_EQ(6U, model.cursor_pos());
+
+  // Test for copy.
+  model.Append(ASCIIToUTF16("HELLO WORLD"));
+  model.SelectAll();
+  EXPECT_FALSE(model.HandleClipboardEvents(app::VKEY_C));
+  clipboard->ReadText(Clipboard::BUFFER_STANDARD, &clipboard_text);
+  EXPECT_STR_EQ("HELLO HELLO WORLD", clipboard_text);
+  EXPECT_STR_EQ("HELLO HELLO WORLD", model.text());
+  EXPECT_EQ(0U, model.cursor_pos());

[oshima, 2011/01/04 22:36:49]

can you add test case for cut&copy with no selection to make sure it won't
update clipboard with empty string.

[varunjain, 2011/01/05 16:19:31]

Done.

+
+  // Test for paste.
+  model.ClearSelection();
+  model.MoveCursorToEnd(false);
+  model.MoveCursorToPreviousWord(true);
+  EXPECT_TRUE(model.HandleClipboardEvents(app::VKEY_V));
+  clipboard->ReadText(Clipboard::BUFFER_STANDARD, &clipboard_text);
+  EXPECT_STR_EQ("HELLO HELLO WORLD", clipboard_text);
+  EXPECT_STR_EQ("HELLO HELLO HELLO HELLO WORLD", model.text());
+  EXPECT_EQ(29U, model.cursor_pos());
+}
+
 }  // namespace views