Move CreateFakeXEvent to x11_util.{h,cc}.

I'd like to use this function from shell_accelerator_controller_unittest.


BUG=none
TEST=Ran browser_tests.


Review URL: http://codereview.chromium.org/8834014

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@113642 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 67 insertions, 0 deletions

diff --git a/ui/base/x/x11_util.cc b/ui/base/x/x11_util.cc
index 690a9c7..e63c56a 100644
--- a/ui/base/x/x11_util.cc
+++ b/ui/base/x/x11_util.cc
@@ -24,6 +24,7 @@
 #include "base/string_util.h"
 #include "base/stringprintf.h"
 #include "base/threading/thread.h"
+#include "ui/base/keycodes/keyboard_code_conversion_x.h"
 #include "ui/base/x/x11_util_internal.h"
 #include "ui/gfx/rect.h"
 #include "ui/gfx/size.h"
@@ -103,6 +104,38 @@ bool GetProperty(XID window, const std::string& property_name, long max_length,
                             property);
 }
 
+// Converts ui::EventType to XKeyEvent state.
+unsigned int XKeyEventState(int flags) {
+  return
+      ((flags & ui::EF_SHIFT_DOWN) ? ShiftMask : 0) |
+      ((flags & ui::EF_CONTROL_DOWN) ? ControlMask : 0) |
+      ((flags & ui::EF_CAPS_LOCK_DOWN) ? LockMask : 0);
+}
+
+// Converts EventType to XKeyEvent type.
+int XKeyEventType(ui::EventType type) {
+  switch (type) {
+    case ui::ET_KEY_PRESSED:
+      return KeyPress;
+    case ui::ET_KEY_RELEASED:
+      return KeyRelease;
+    default:
+      return 0;
+  }
+}
+
+// Converts KeyboardCode to XKeyEvent keycode.
+unsigned int XKeyEventKeyCode(ui::KeyboardCode key_code,
+                              int flags,
+                              Display* display) {
+  const int keysym = XKeysymForWindowsKeyCode(key_code,
+                                              flags & ui::EF_SHIFT_DOWN);
+  // Tests assume the keycode for XK_less is equal to the one of XK_comma,
+  // but XKeysymToKeycode returns 94 for XK_less while it returns 59 for
+  // XK_comma. Here we convert the value for XK_less to the value for XK_comma.
+  return (keysym == XK_less) ? 59 : XKeysymToKeycode(display, keysym);
+}
+
 // A process wide singleton that manages the usage of X cursors.
 class XCursorCache {
  public:
@@ -872,6 +905,33 @@ void UpdateButtonMap() {
   XButtonMap::GetInstance()->UpdateMapping();
 }
 
+void InitXKeyEventForTesting(EventType type,
+                             KeyboardCode key_code,
+                             int flags,
+                             XEvent* event) {
+  CHECK(event);
+  Display* display = GetXDisplay();
+  XKeyEvent key_event;
+  key_event.type = XKeyEventType(type);
+  CHECK_NE(0, key_event.type);
+  key_event.serial = 0;
+  key_event.send_event = 0;
+  key_event.display = display;
+  key_event.time = 0;
+  key_event.window = 0;
+  key_event.root = 0;
+  key_event.subwindow = 0;
+  key_event.x = 0;
+  key_event.y = 0;
+  key_event.x_root = 0;
+  key_event.y_root = 0;
+  key_event.state = XKeyEventState(flags);
+  key_event.keycode = XKeyEventKeyCode(key_code, flags, display);
+  key_event.same_screen = 1;
+  event->type = key_event.type;
+  event->xkey = key_event;
+}
+
 // ----------------------------------------------------------------------------
 // These functions are declared in x11_util_internal.h because they require
 // XLib.h to be included, and it conflicts with many other headers.
diff --git a/ui/base/x/x11_util.h b/ui/base/x/x11_util.h
index 6c87e73..0147108 100644
--- a/ui/base/x/x11_util.h
+++ b/ui/base/x/x11_util.h
@@ -16,6 +16,7 @@
 #include <vector>
 
 #include "base/basictypes.h"
+#include "ui/base/events.h"
 #include "ui/base/ui_export.h"
 
 typedef unsigned long Atom;
@@ -235,6 +236,12 @@ int GetMappedButton(int button);
 // received.
 UI_EXPORT void UpdateButtonMap();
 
+// Initializes a XEvent that holds XKeyEvent for testing.
+UI_EXPORT void InitXKeyEventForTesting(EventType type,
+                                       KeyboardCode key_code,
+                                       int flags,
+                                       XEvent* event);
+
 }  // namespace ui
 
 #endif  // UI_BASE_X_X11_UTIL_H_