[Autofill] Add Mac implementation for the in-browser process popup view.

chrome/browser/ui/cocoa/autofill/autofill_popup_view_mac.mm

+// Copyright (c) 2012 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.
+
+#import <Cocoa/Cocoa.h>
+
+#include "chrome/browser/ui/cocoa/autofill/autofill_popup_view_mac.h"
+
+#include "base/logging.h"
+#include "chrome/browser/ui/autofill/autofill_popup_controller.h"
+#import "chrome/browser/ui/cocoa/autofill/autofill_popup_view_cocoa.h"
+#include "ui/base/cocoa/window_size_constants.h"
+#include "ui/gfx/rect.h"
+
+AutofillPopupViewMac::AutofillPopupViewMac(
+    AutofillPopupController* controller)
+    : controller_(controller) {
+  window_ =
+      [[NSWindow alloc] initWithContentRect:ui::kWindowSizeDeterminedLater
+                                  styleMask:NSBorderlessWindowMask
+                                    backing:NSBackingStoreBuffered
+                                      defer:YES];
+  // Telling Cocoa that the window is opaque enables some drawing optimizations.
+  [window_ setOpaque:YES];
+
+  view_ = [[[AutofillPopupViewCocoa alloc]
+             initWithController:controller_
+                          frame:[window_ frame]] autorelease];

[Scott Hess - ex-Googler, 2013/01/09 21:36:17]

[window_ frame] seems wrong.  I expect that -setContentView: is resizing things
to fit the window.  [[window_ contentView] frame] is probably better.

[Ilya Sherman, 2013/01/10 02:21:21]

Done.

+  [window_ setContentView:view_];
+}
+
+AutofillPopupViewMac::~AutofillPopupViewMac() {
+  [view_ controllerDestroyed];
+  controller_->ViewDestroyed();
+
+  [window_ close];
+}
+
+void AutofillPopupViewMac::Hide() {
+  delete this;
+}
+
+void AutofillPopupViewMac::Show() {
+  SetInitialBounds();
+  UpdateBoundsAndRedrawPopup();
+  [[controller_->container_view() window] addChildWindow:window_
+                                                 ordered:NSWindowAbove];
+}
+
+void AutofillPopupViewMac::InvalidateRow(size_t row) {
+  gfx::Rect dirty_rect = controller_->GetRowBounds(row);
+  [view_ setNeedsDisplayInRect:[view_ flipRectToNSRect:dirty_rect]];
+}
+
+void AutofillPopupViewMac::UpdateBoundsAndRedrawPopup() {
+  [window_ setFrame:NSRectFromCGRect(controller_->popup_bounds().ToCGRect())
+            display:YES];
+}
+
+void AutofillPopupViewMac::SetInitialBounds() {
+  // The bounds rect in Chrome's screen coordinates.
+  // TODO(isherman): Does this handle Hi-DPI mode correctly?  According to the
+  // docs, the origin should be in screen coordinates, whereas the size should
+  // be in view coordinates.

[Scott Hess - ex-Googler, 2013/01/09 21:36:17]

I'm not sure the various coordinate systems this TODO mentions even relate to
hidpi.  It seems to position right on my hidpi box, so I'd be inclined to remove
the TODO.

[Ilya Sherman, 2013/01/10 02:21:21]

Done.

+  gfx::Rect bounds(controller_->element_bounds().x(),
+                   controller_->element_bounds().bottom(),

[Scott Hess - ex-Googler, 2013/01/09 21:36:17]

I found this confusing until I read it a couple times, as I thought it was
flipping things.  I believe that this is placing the popup below the element
which initiated it?

[Ilya Sherman, 2013/01/10 02:21:21]

Done.

+                   controller_->GetPopupRequiredWidth(),
+                   controller_->GetPopupRequiredHeight());
+
+  // Flip coordinates back into Cocoa-land.
+  // TODO(isherman): Does this handle multi-monitor setups correctly?
+  NSScreen* screen = [[NSScreen screens] objectAtIndex:0];
+  bounds.set_y([screen frame].size.height - bounds.y() - bounds.height());

[Scott Hess - ex-Googler, 2013/01/09 21:36:17]

*splode*

I don't fully understand this.  Shouldn't the bounds help by the controller_
always be rooted at the upper-left, with the flipping happening in
UpdateBoundsAndRedrawPopup() when converting from the gfx::Rect to the NSRect?

[Ilya Sherman, 2013/01/10 02:21:21]

That's a really good point.  Done.

+
+  // TODO(isherman): Position the popup correctly if it can't fit below the text
+  // field: http://crbug.com/164603
+
+  controller_->SetPopupBounds(bounds);
+}
+
+AutofillPopupView* AutofillPopupView::Create(
+    AutofillPopupController* controller) {
+  return new AutofillPopupViewMac(controller);
+}