Password manager: Implement password generation UI for Mac.

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

+// 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.
+
+#import "chrome/browser/ui/cocoa/autofill/autofill_popup_base_view_cocoa.h"
+
+#include "chrome/browser/ui/autofill/autofill_popup_view_delegate.h"
+#include "chrome/browser/ui/autofill/popup_constants.h"
+#include "ui/base/cocoa/window_size_constants.h"
+
+@implementation AutofillPopupBaseViewCocoa
+
+#pragma mark -
+#pragma mark Colors
+
+- (NSColor*)backgroundColor {
+  return [NSColor whiteColor];
+}
+
+- (NSColor*)borderColor {
+  return [NSColor colorForControlTint:[NSColor currentControlTint]];
+}
+
+- (NSColor*)highlightColor {
+  return [NSColor selectedControlColor];
+}
+
+- (NSColor*)nameColor {
+  return [NSColor blackColor];
+}
+
+- (NSColor*)separatorColor {
+  return [NSColor colorWithCalibratedWhite:220 / 255.0 alpha:1];
+}
+
+- (NSColor*)subtextColor {
+  return [NSColor grayColor];
+}
+
+- (NSColor*)warningColor {
+  return [NSColor grayColor];
+}
+
+#pragma mark -
+#pragma mark Public methods
+
+- (id)initWithDelegate:(autofill::AutofillPopupViewDelegate*)delegate
+                 frame:(NSRect)frame {
+  self = [super initWithFrame:frame];
+  if (self)
+    delegate_ = delegate;
+
+  return self;
+}
+
+- (void)drawSeparatorWithBounds:(NSRect)bounds {
+  [[self separatorColor] set];
+  [NSBezierPath fillRect:bounds];
+}
+
+// A slight optimization for drawing:
+// https://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/CocoaViewsGuide/Optimizing/Optimizing.html
+- (BOOL)isOpaque {
+  return YES;
+}
+
+- (BOOL)isFlipped {
+  // Flipped so that it's easier to share controller logic with other OSes.
+  return YES;
+}
+
+- (void)drawBackgroundAndBorder {
+  // The inset is needed since the border is centered on the |path|.
+  // TODO(isherman): We should consider using asset-based drawing for the
+  // border, creating simple bitmaps for the view's border and background, and
+  // drawing them using NSDrawNinePartImage().
+  CGFloat inset = autofill::kPopupBorderThickness / 2.0;
+  NSRect borderRect = NSInsetRect([self bounds], inset, inset);
+  NSBezierPath* path = [NSBezierPath bezierPathWithRect:borderRect];
+  [[self backgroundColor] setFill];
+  [path fill];
+  [path setLineWidth:autofill::kPopupBorderThickness];
+  [[self borderColor] setStroke];
+  [path stroke];
+}
+
+- (void)mouseUp:(NSEvent*)theEvent {
+  // If the view is in the process of being destroyed, abort.
+  if (!delegate_)
+    return;

[Ilya Sherman, 2014/05/12 21:46:10]

This code is currently unreachable.  I think that's a problem -- it's possible
for the delegate to be destroyed prior to |self| being destroyed, which means
that there would be a use-after-free.  That's why there was a
-controllerDestroyed method to begin win.

[Patrick Dubroy, 2014/05/13 12:18:05]

Ok, I've added back controllerDestroyed.

+
+  NSPoint location = [self convertPoint:[theEvent locationInWindow]
+                               fromView:nil];
+
+  if (NSPointInRect(location, [self bounds])) {
+    delegate_->SetSelectionAtPoint(gfx::Point(NSPointToCGPoint(location)));
+    delegate_->AcceptSelectedLine();
+  }
+}
+
+- (void)mouseMoved:(NSEvent*)theEvent {
+  // If the view is in the process of being destroyed, abort.
+  if (!delegate_)
+    return;
+
+  NSPoint location = [self convertPoint:[theEvent locationInWindow]
+                               fromView:nil];
+
+  delegate_->SetSelectionAtPoint(gfx::Point(NSPointToCGPoint(location)));
+}
+
+- (void)mouseDragged:(NSEvent*)theEvent {
+  [self mouseMoved:theEvent];
+}
+
+- (void)mouseExited:(NSEvent*)theEvent {
+  // If the view is in the process of being destroyed, abort.
+  if (!delegate_)
+    return;
+
+  delegate_->SelectionCleared();
+}
+
+#pragma mark -
+#pragma mark Messages from AutofillPopupViewBridge:
+
+- (void)updateBoundsAndRedrawPopup {
+  NSRect frame = NSRectFromCGRect(delegate_->popup_bounds().ToCGRect());
+
+  // Flip coordinates back into Cocoa-land.  The controller's platform-neutral
+  // coordinate space places the origin at the top-left of the first screen,
+  // whereas Cocoa's coordinate space expects the origin to be at the
+  // bottom-left of this same screen.
+  NSScreen* screen = [[NSScreen screens] objectAtIndex:0];
+  frame.origin.y = NSMaxY([screen frame]) - NSMaxY(frame);
+
+  // TODO(isherman): The view should support scrolling if the popup gets too
+  // big to fit on the screen.
+  [[self window] setFrame:frame display:YES];
+  [self setNeedsDisplay:YES];
+}
+
+- (void)showPopup {
+  NSWindow* window =
+      [[NSWindow alloc] initWithContentRect:ui::kWindowSizeDeterminedLater
+                                  styleMask:NSBorderlessWindowMask
+                                    backing:NSBackingStoreBuffered
+                                      defer:YES];
+  [window setContentView:self];
+
+  // Telling Cocoa that the window is opaque enables some drawing optimizations.
+  [window setOpaque:YES];
+
+  [self updateBoundsAndRedrawPopup];
+  [[delegate_->container_view() window] addChildWindow:window
+                                               ordered:NSWindowAbove];
+}
+
+- (void)hidePopup {
+  // Remove the child window before closing, otherwise it can mess up
+  // display ordering.
+  NSWindow* window = [self window];
+  [[window parentWindow] removeChildWindow:window];
+  [window close];
+}
+
+@end