Move automation/ui_controls to ui/ui_controls

chrome/browser/automation/ui_controls_mac.mm

Index: chrome/browser/automation/ui_controls_mac.mm
diff --git a/chrome/browser/automation/ui_controls_mac.mm b/chrome/browser/automation/ui_controls_mac.mm
deleted file mode 100644
index 110f467a0dcccd1e9c8ae731b1af61085f032192..0000000000000000000000000000000000000000
--- a/chrome/browser/automation/ui_controls_mac.mm
+++ /dev/null
@@ -1,387 +0,0 @@
-// Copyright (c) 2011 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 "chrome/browser/automation/ui_controls.h"
-
-#import <Cocoa/Cocoa.h>
-#include <mach/mach_time.h>
-#include <vector>
-
-#include "base/bind.h"
-#include "base/callback.h"
-#include "base/message_loop.h"
-#include "chrome/browser/automation/ui_controls_internal.h"
-#include "content/public/browser/browser_thread.h"
-#include "ui/base/keycodes/keyboard_code_conversion_mac.h"
-
-using content::BrowserThread;
-
-// Implementation details: We use [NSApplication sendEvent:] instead
-// of [NSApplication postEvent:atStart:] so that the event gets sent
-// immediately.  This lets us run the post-event task right
-// immediately as well.  Unfortunately I cannot subclass NSEvent (it's
-// probably a class cluster) to allow other easy answers.  For
-// example, if I could subclass NSEvent, I could run the Task in it's
-// dealloc routine (which necessarily happens after the event is
-// dispatched).  Unlike Linux, Mac does not have message loop
-// observer/notification.  Unlike windows, I cannot post non-events
-// into the event queue.  (I can post other kinds of tasks but can't
-// guarantee their order with regards to events).
-
-// But [NSApplication sendEvent:] causes a problem when sending mouse click
-// events. Because in order to handle mouse drag, when processing a mouse
-// click event, the application may want to retrieve the next event
-// synchronously by calling NSApplication's nextEventMatchingMask method.
-// In this case, [NSApplication sendEvent:] causes deadlock.
-// So we need to use [NSApplication postEvent:atStart:] for mouse click
-// events. In order to notify the caller correctly after all events has been
-// processed, we setup a task to watch for the event queue time to time and
-// notify the caller as soon as there is no event in the queue.
-//
-// TODO(suzhe):
-// 1. Investigate why using [NSApplication postEvent:atStart:] for keyboard
-//    events causes BrowserKeyEventsTest.CommandKeyEvents to fail.
-//    See http://crbug.com/49270
-// 2. On OSX 10.6, [NSEvent addLocalMonitorForEventsMatchingMask:handler:] may
-//    be used, so that we don't need to poll the event queue time to time.
-
-namespace {
-
-// From
-// http://stackoverflow.com/questions/1597383/cgeventtimestamp-to-nsdate
-// Which credits Apple sample code for this routine.
-uint64_t UpTimeInNanoseconds(void) {
-  uint64_t time;
-  uint64_t timeNano;
-  static mach_timebase_info_data_t sTimebaseInfo;
-
-  time = mach_absolute_time();
-
-  // Convert to nanoseconds.
-
-  // If this is the first time we've run, get the timebase.
-  // We can use denom == 0 to indicate that sTimebaseInfo is
-  // uninitialised because it makes no sense to have a zero
-  // denominator is a fraction.
-  if (sTimebaseInfo.denom == 0) {
-    (void) mach_timebase_info(&sTimebaseInfo);
-  }
-
-  // This could overflow; for testing needs we probably don't care.
-  timeNano = time * sTimebaseInfo.numer / sTimebaseInfo.denom;
-  return timeNano;
-}
-
-NSTimeInterval TimeIntervalSinceSystemStartup() {
-  return UpTimeInNanoseconds() / 1000000000.0;
-}
-
-// Creates and returns an autoreleased key event.
-NSEvent* SynthesizeKeyEvent(NSWindow* window,
-                            bool keyDown,
-                            ui::KeyboardCode keycode,
-                            NSUInteger flags) {
-  unichar character;
-  unichar characterIgnoringModifiers;
-  int macKeycode = ui::MacKeyCodeForWindowsKeyCode(
-      keycode, flags, &character, &characterIgnoringModifiers);
-
-  if (macKeycode < 0)
-    return nil;
-
-  NSString* charactersIgnoringModifiers =
-      [[[NSString alloc] initWithCharacters:&characterIgnoringModifiers
-                                     length:1]
-        autorelease];
-  NSString* characters =
-      [[[NSString alloc] initWithCharacters:&character length:1] autorelease];
-
-  NSEventType type = (keyDown ? NSKeyDown : NSKeyUp);
-
-  // Modifier keys generate NSFlagsChanged event rather than
-  // NSKeyDown/NSKeyUp events.
-  if (keycode == ui::VKEY_CONTROL || keycode == ui::VKEY_SHIFT ||
-      keycode == ui::VKEY_MENU || keycode == ui::VKEY_COMMAND)
-    type = NSFlagsChanged;
-
-  // For events other than mouse moved, [event locationInWindow] is
-  // UNDEFINED if the event is not NSMouseMoved.  Thus, the (0,0)
-  // location should be fine.
-  NSEvent* event =
-      [NSEvent keyEventWithType:type
-                       location:NSMakePoint(0, 0)
-                  modifierFlags:flags
-                      timestamp:TimeIntervalSinceSystemStartup()
-                   windowNumber:[window windowNumber]
-                        context:nil
-                     characters:characters
-    charactersIgnoringModifiers:charactersIgnoringModifiers
-                      isARepeat:NO
-                        keyCode:(unsigned short)macKeycode];
-
-  return event;
-}
-
-// Creates the proper sequence of autoreleased key events for a key down + up.
-void SynthesizeKeyEventsSequence(NSWindow* window,
-                                 ui::KeyboardCode keycode,
-                                 bool control,
-                                 bool shift,
-                                 bool alt,
-                                 bool command,
-                                 std::vector<NSEvent*>* events) {
-  NSEvent* event = nil;
-  NSUInteger flags = 0;
-  if (control) {
-    flags |= NSControlKeyMask;
-    event = SynthesizeKeyEvent(window, true, ui::VKEY_CONTROL, flags);
-    DCHECK(event);
-    events->push_back(event);
-  }
-  if (shift) {
-    flags |= NSShiftKeyMask;
-    event = SynthesizeKeyEvent(window, true, ui::VKEY_SHIFT, flags);
-    DCHECK(event);
-    events->push_back(event);
-  }
-  if (alt) {
-    flags |= NSAlternateKeyMask;
-    event = SynthesizeKeyEvent(window, true, ui::VKEY_MENU, flags);
-    DCHECK(event);
-    events->push_back(event);
-  }
-  if (command) {
-    flags |= NSCommandKeyMask;
-    event = SynthesizeKeyEvent(window, true, ui::VKEY_COMMAND, flags);
-    DCHECK(event);
-    events->push_back(event);
-  }
-
-  event = SynthesizeKeyEvent(window, true, keycode, flags);
-  DCHECK(event);
-  events->push_back(event);
-  event = SynthesizeKeyEvent(window, false, keycode, flags);
-  DCHECK(event);
-  events->push_back(event);
-
-  if (command) {
-    flags &= ~NSCommandKeyMask;
-    event = SynthesizeKeyEvent(window, false, ui::VKEY_COMMAND, flags);
-    DCHECK(event);
-    events->push_back(event);
-  }
-  if (alt) {
-    flags &= ~NSAlternateKeyMask;
-    event = SynthesizeKeyEvent(window, false, ui::VKEY_MENU, flags);
-    DCHECK(event);
-    events->push_back(event);
-  }
-  if (shift) {
-    flags &= ~NSShiftKeyMask;
-    event = SynthesizeKeyEvent(window, false, ui::VKEY_SHIFT, flags);
-    DCHECK(event);
-    events->push_back(event);
-  }
-  if (control) {
-    flags &= ~NSControlKeyMask;
-    event = SynthesizeKeyEvent(window, false, ui::VKEY_CONTROL, flags);
-    DCHECK(event);
-    events->push_back(event);
-  }
-}
-
-// A helper function to watch for the event queue. The specific task will be
-// fired when there is no more event in the queue.
-void EventQueueWatcher(const base::Closure& task) {
-  NSEvent* event = [NSApp nextEventMatchingMask:NSAnyEventMask
-                                      untilDate:nil
-                                         inMode:NSDefaultRunLoopMode
-                                        dequeue:NO];
-  // If there is still event in the queue, then we need to check again.
-  if (event) {
-    MessageLoop::current()->PostTask(
-        FROM_HERE,
-        base::Bind(&EventQueueWatcher, task));
-  } else {
-    MessageLoop::current()->PostTask(FROM_HERE, task);
-  }
-}
-
-// Stores the current mouse location on the screen. So that we can use it
-// when firing keyboard and mouse click events.
-NSPoint g_mouse_location = { 0, 0 };
-
-}  // anonymous namespace
-
-namespace ui_controls {
-
-bool SendKeyPress(gfx::NativeWindow window,
-                  ui::KeyboardCode key,
-                  bool control,
-                  bool shift,
-                  bool alt,
-                  bool command) {
-  return SendKeyPressNotifyWhenDone(window, key,
-                                    control, shift, alt, command,
-                                    base::Closure());
-}
-
-// Win and Linux implement a SendKeyPress() this as a
-// SendKeyPressAndRelease(), so we should as well (despite the name).
-bool SendKeyPressNotifyWhenDone(gfx::NativeWindow window,
-                                ui::KeyboardCode key,
-                                bool control,
-                                bool shift,
-                                bool alt,
-                                bool command,
-                                const base::Closure& task) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-
-  std::vector<NSEvent*> events;
-  SynthesizeKeyEventsSequence(
-      window, key, control, shift, alt, command, &events);
-
-  // TODO(suzhe): Using [NSApplication postEvent:atStart:] here causes
-  // BrowserKeyEventsTest.CommandKeyEvents to fail. See http://crbug.com/49270
-  // But using [NSApplication sendEvent:] should be safe for keyboard events,
-  // because until now, no code wants to retrieve the next event when handling
-  // a keyboard event.
-  for (std::vector<NSEvent*>::iterator iter = events.begin();
-       iter != events.end(); ++iter)
-    [[NSApplication sharedApplication] sendEvent:*iter];
-
-  if (!task.is_null()) {
-    MessageLoop::current()->PostTask(
-        FROM_HERE, base::Bind(&EventQueueWatcher, task));
-  }
-
-  return true;
-}
-
-bool SendMouseMove(long x, long y) {
-  return SendMouseMoveNotifyWhenDone(x, y, base::Closure());
-}
-
-// Input position is in screen coordinates.  However, NSMouseMoved
-// events require them window-relative, so we adjust.  We *DO* flip
-// the coordinate space, so input events can be the same for all
-// platforms.  E.g. (0,0) is upper-left.
-bool SendMouseMoveNotifyWhenDone(long x, long y, const base::Closure& task) {
-  NSWindow* window = [[NSApplication sharedApplication] keyWindow];
-  CGFloat screenHeight =
-    [[[NSScreen screens] objectAtIndex:0] frame].size.height;
-  g_mouse_location = NSMakePoint(x, screenHeight - y);  // flip!
-  NSPoint pointInWindow = g_mouse_location;
-  if (window)
-    pointInWindow = [window convertScreenToBase:pointInWindow];
-  NSTimeInterval timestamp = TimeIntervalSinceSystemStartup();
-
-  NSEvent* event =
-      [NSEvent mouseEventWithType:NSMouseMoved
-                         location:pointInWindow
-                    modifierFlags:0
-                        timestamp:timestamp
-                     windowNumber:[window windowNumber]
-                          context:nil
-                      eventNumber:0
-                       clickCount:0
-                         pressure:0.0];
-  [[NSApplication sharedApplication] postEvent:event atStart:NO];
-
-  if (!task.is_null()) {
-    MessageLoop::current()->PostTask(
-        FROM_HERE, base::Bind(&EventQueueWatcher, task));
-  }
-
-  return true;
-}
-
-bool SendMouseEvents(MouseButton type, int state) {
-  return SendMouseEventsNotifyWhenDone(type, state, base::Closure());
-}
-
-bool SendMouseEventsNotifyWhenDone(MouseButton type, int state,
-                                   const base::Closure& task) {
-  // On windows it appears state can be (UP|DOWN).  It is unclear if
-  // that'll happen here but prepare for it just in case.
-  if (state == (UP|DOWN)) {
-    return (SendMouseEventsNotifyWhenDone(type, DOWN, base::Closure()) &&
-            SendMouseEventsNotifyWhenDone(type, UP, task));
-  }
-  NSEventType etype = 0;
-  if (type == LEFT) {
-    if (state == UP) {
-      etype = NSLeftMouseUp;
-    } else {
-      etype = NSLeftMouseDown;
-    }
-  } else if (type == MIDDLE) {
-    if (state == UP) {
-      etype = NSOtherMouseUp;
-    } else {
-      etype = NSOtherMouseDown;
-    }
-  } else if (type == RIGHT) {
-    if (state == UP) {
-      etype = NSRightMouseUp;
-    } else {
-      etype = NSRightMouseDown;
-    }
-  } else {
-    return false;
-  }
-  NSWindow* window = [[NSApplication sharedApplication] keyWindow];
-  NSPoint pointInWindow = g_mouse_location;
-  if (window)
-    pointInWindow = [window convertScreenToBase:pointInWindow];
-
-  NSEvent* event =
-      [NSEvent mouseEventWithType:etype
-                         location:pointInWindow
-                    modifierFlags:0
-                        timestamp:TimeIntervalSinceSystemStartup()
-                     windowNumber:[window windowNumber]
-                          context:nil
-                      eventNumber:0
-                       clickCount:1
-                         pressure:(state == DOWN ? 1.0 : 0.0 )];
-  [[NSApplication sharedApplication] postEvent:event atStart:NO];
-
-  if (!task.is_null()) {
-    MessageLoop::current()->PostTask(
-        FROM_HERE, base::Bind(&EventQueueWatcher, task));
-  }
-
-  return true;
-}
-
-bool SendMouseClick(MouseButton type) {
- return SendMouseEventsNotifyWhenDone(type, UP|DOWN, base::Closure());
-}
-
-void MoveMouseToCenterAndPress(
-    NSView* view,
-    MouseButton button,
-    int state,
-    const base::Closure& task) {
-  DCHECK(view);
-  NSWindow* window = [view window];
-  DCHECK(window);
-  NSScreen* screen = [window screen];
-  DCHECK(screen);
-
-  // Converts the center position of the view into the coordinates accepted
-  // by SendMouseMoveNotifyWhenDone() method.
-  NSRect bounds = [view bounds];
-  NSPoint center = NSMakePoint(NSMidX(bounds), NSMidY(bounds));
-  center = [view convertPoint:center toView:nil];
-  center = [window convertBaseToScreen:center];
-  center = NSMakePoint(center.x, [screen frame].size.height - center.y);
-
-  SendMouseMoveNotifyWhenDone(
-      center.x, center.y,
-      base::Bind(&ui_controls::internal::ClickTask, button, state, task));
-}
-
-}  // ui_controls