Keep virtual keyboard visibility the same after enable an IME in a different extension

chrome/browser/ui/ash/keyboard_controller_browsertest.cc

Index: chrome/browser/ui/ash/keyboard_controller_browsertest.cc
diff --git a/chrome/browser/ui/ash/keyboard_controller_browsertest.cc b/chrome/browser/ui/ash/keyboard_controller_browsertest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..16445c9f9fbf4de34befcb4fc8c92aba34fd90cc
--- /dev/null
+++ b/chrome/browser/ui/ash/keyboard_controller_browsertest.cc
@@ -0,0 +1,109 @@
+// Copyright 2014 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 "base/command_line.h"
+#include "chrome/test/base/in_process_browser_test.h"
+#include "content/public/browser/web_contents.h"
+#include "ui/base/ime/dummy_text_input_client.h"
+#include "ui/base/ime/input_method.h"
+#include "ui/base/ime/input_method_factory.h"
+#include "ui/keyboard/keyboard_constants.h"
+#include "ui/keyboard/keyboard_controller.h"
+#include "ui/keyboard/keyboard_controller_proxy.h"
+#include "ui/keyboard/keyboard_switches.h"
+#include "ui/keyboard/keyboard_util.h"
+
+namespace {
+const int kKeyboardHeightForTest = 100;
+}  // namespace
+
+class VirtualKeyboardWebContentTest : public InProcessBrowserTest {
+ public:
+  VirtualKeyboardWebContentTest() {};
+  virtual ~VirtualKeyboardWebContentTest() {};
+
+  virtual void SetUp() OVERRIDE {
+    ui::SetUpInputMethodFactoryForTesting();
+    InProcessBrowserTest::SetUp();
+  }
+
+  // Ensure that the virtual keyboard is enabled.
+  virtual void SetUpCommandLine(CommandLine* command_line) OVERRIDE {
+    command_line->AppendSwitch(
+        keyboard::switches::kEnableVirtualKeyboard);
+  }
+
+  keyboard::KeyboardControllerProxy* proxy() {
+    return keyboard::KeyboardController::GetInstance()->proxy();
+  }
+
+ protected:
+  void FocusEditableNodeAndShowKeyboard() {
+    client.reset(new ui::DummyTextInputClient(ui::TEXT_INPUT_TYPE_TEXT));
+    ui::InputMethod* input_method = proxy()->GetInputMethod();
+    input_method->SetFocusedTextInputClient(client.get());
+    input_method->ShowImeIfNeeded();
+    ResizeKeyboardWindow();
+  }
+
+  void FocusNonEditableNode() {
+    client.reset(new ui::DummyTextInputClient(ui::TEXT_INPUT_TYPE_NONE));
+    ui::InputMethod* input_method = proxy()->GetInputMethod();
+    input_method->SetFocusedTextInputClient(client.get());
+  }
+
+  void MockEnableIMEInDifferentExtension(const std::string& url) {
+    keyboard::SetOverrideContentUrl(GURL(url));
+    keyboard::KeyboardController::GetInstance()->Reload();
+    ResizeKeyboardWindow();
+  }
+
+  bool IsKeyboardVisible() const {
+    return keyboard::KeyboardController::GetInstance()->keyboard_visible();
+  }
+
+ private:
+  // Mock window.resizeTo that is expected to be called after navigate to a new
+  // virtual keyboard.
+  void ResizeKeyboardWindow() {
+    gfx::Rect bounds = proxy()->GetKeyboardWindow()->bounds();
+    proxy()->GetKeyboardWindow()->SetBounds(gfx::Rect(
+        bounds.x(),
+        bounds.bottom() - kKeyboardHeightForTest,
+        bounds.width(),
+        kKeyboardHeightForTest));
+  }
+
+  scoped_ptr<ui::DummyTextInputClient> client;
+
+  DISALLOW_COPY_AND_ASSIGN(VirtualKeyboardWebContentTest);
+};
+
+// Test for crbug.com/404340. After enabling an IME in a different extension,
+// its virtual keyboard should not become visible if previous one is not.
+IN_PROC_BROWSER_TEST_F(VirtualKeyboardWebContentTest,
+                       EnableIMEInDifferentExtension) {
+  FocusEditableNodeAndShowKeyboard();
+  EXPECT_TRUE(IsKeyboardVisible());
+  FocusNonEditableNode();
+  EXPECT_FALSE(IsKeyboardVisible());
+
+  MockEnableIMEInDifferentExtension("chrome-extension://domain-1");
+  // Keyboard should not become visible if previous keyboard is not.
+  EXPECT_FALSE(IsKeyboardVisible());
+
+  FocusEditableNodeAndShowKeyboard();
+  // Keyboard should become visible after focus on an editable node.
+  EXPECT_TRUE(IsKeyboardVisible());
+
+  // Simulate hide keyboard by pressing hide key on the virtual keyboard.
+  keyboard::KeyboardController::GetInstance()->HideKeyboard(
+      keyboard::KeyboardController::HIDE_REASON_MANUAL);
+  EXPECT_FALSE(IsKeyboardVisible());
+
+  MockEnableIMEInDifferentExtension("chrome-extension://domain-2");
+  // Keyboard should not become visible if previous keyboard is not, even if it
+  // is currently focused on an editable node.
+  EXPECT_FALSE(IsKeyboardVisible());
+}