Password manager: Implement password generation UI for Mac.

chrome/browser/ui/cocoa/autofill/password_generation_popup_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/password_generation_popup_view_cocoa.h"
+
+#include "base/logging.h"
+#include "base/strings/sys_string_conversions.h"
+#include "chrome/browser/ui/autofill/autofill_popup_controller.h"
+#include "chrome/browser/ui/autofill/autofill_popup_view.h"
+#include "chrome/browser/ui/autofill/popup_constants.h"
+#include "chrome/browser/ui/cocoa/autofill/password_generation_popup_view_bridge.h"
+#include "components/autofill/core/browser/popup_item_ids.h"
+#include "grit/ui_resources.h"
+#include "skia/ext/skia_utils_mac.h"
+#include "ui/base/resource/resource_bundle.h"
+#include "ui/gfx/font_list.h"
+#include "ui/gfx/image/image.h"
+#include "ui/gfx/point.h"
+#include "ui/gfx/rect.h"
+#include "ui/gfx/text_constants.h"
+
+using autofill::AutofillPopupView;
+using autofill::PasswordGenerationPopupView;
+
+namespace {
+
+NSColor* DividerColor() {
+  return gfx::SkColorToCalibratedNSColor(
+      PasswordGenerationPopupView::kDividerColor);
+}
+
+NSColor* HelpTextBackgroundColor() {
+  return gfx::SkColorToCalibratedNSColor(
+      PasswordGenerationPopupView::kExplanatoryTextBackgroundColor);
+}
+
+NSColor* HelpTextColor() {
+  return gfx::SkColorToCalibratedNSColor(
+      PasswordGenerationPopupView::kExplanatoryTextColor);
+}
+
+}  // namespace
+
+@implementation PasswordGenerationPopupViewCocoa
+
+#pragma mark -
+#pragma mark Initialisers
+
+- (id)initWithFrame:(NSRect)frame {
+  NOTREACHED();
+  return nil;
+}
+
+- (id)initWithController:
+    (autofill::PasswordGenerationPopupController*)controller
+                   frame:(NSRect)frame {
+  self = [super initWithDelegate:controller frame:frame];
+  if (self)
+    controller_ = controller;
+
+  return self;
+}
+
+#pragma mark -
+#pragma mark NSView implementation:
+
+- (void)drawRect:(NSRect)dirtyRect {
+  // If the view is in the process of being destroyed, don't bother drawing.
+  if (!controller_)
+    return;
+
+  [self drawBackgroundAndBorder];
+
+  NSRect bounds = [self bounds];
+  bounds.origin.y += autofill::kPopupBorderThickness;
+
+  if (controller_->password_selected()) {
+    // Draw a highlight under the suggested password.
+    NSRect highlightBounds =
+        NSRectFromCGRect(controller_->password_bounds().ToCGRect());
+    highlightBounds.origin.y +=
+        PasswordGenerationPopupView::kPasswordVerticalInset;
+    highlightBounds.size.height -=
+        2 * PasswordGenerationPopupView::kPasswordVerticalInset;
+    [[self highlightColor] set];
+    [NSBezierPath fillRect:highlightBounds];
+  }
+
+  NSFont* font = controller_->font_list().GetPrimaryFont().GetNativeFont();
+  NSRect passwordBounds =
+      NSRectFromCGRect(controller_->password_bounds().ToCGRect());
+
+  BOOL isRTL = NO;  // TODO(dubroy): Implement RTL support.
+  [self drawText:base::SysUTF16ToNSString(controller_->password())
+        withFont:font
+           color:[self nameColor]
+          bounds:passwordBounds
+       alignment:isRTL ? gfx::ALIGN_RIGHT : gfx::ALIGN_LEFT];
+
+  [self drawText:base::SysUTF16ToNSString(controller_->SuggestedText())
+        withFont:font
+           color:[self subtextColor]
+          bounds:passwordBounds
+       alignment:isRTL ? gfx::ALIGN_LEFT : gfx::ALIGN_RIGHT];
+
+  // Render the background of the help text.
+  NSRect helpBounds =
+      NSRectFromCGRect(controller_->help_bounds().ToCGRect());
+  [HelpTextBackgroundColor() set];
+  [NSBezierPath fillRect:helpBounds];
+
+  // Render the divider.
+  NSRect helpBorder = helpBounds;
+  helpBorder.size.height = 1;
+  [DividerColor() set];
+  [NSBezierPath fillRect:helpBorder];
+
+  // Adjust |helpBounds| so that the divider is not included when calculating
+  // where the text should be rendered.
+  helpBounds.origin.x += 1;
+  helpBounds.size.height -= 1;
+
+  // Render the help text.
+  [self drawText:base::SysUTF16ToNSString(controller_->HelpText())
+        withFont:font
+           color:HelpTextColor()
+          bounds:helpBounds
+       alignment:isRTL ? gfx::ALIGN_RIGHT : gfx::ALIGN_LEFT];
+}
+
+- (void)drawText:(NSString*)text
+        withFont:(NSFont*)font
+           color:(id)color
+          bounds:(NSRect)bounds
+       alignment:(gfx::HorizontalAlignment)alignment {
+  NSDictionary* textAttributes = @{
+    NSFontAttributeName: font,
+    NSForegroundColorAttributeName: color,
+  };
+  // Adjust horizontal padding before measuring.
+  bounds.size.width -= 2 * controller_->kHorizontalPadding;
+  bounds.origin.x += controller_->kHorizontalPadding;
+
+  NSSize textSize =
+      [text boundingRectWithSize:bounds.size
+                         options:NSStringDrawingUsesLineFragmentOrigin
+                      attributes:textAttributes].size;
+
+  // Center the text vertically within the bounds.
+  bounds.origin.y = NSMinY(bounds) + (NSHeight(bounds) - textSize.height) / 2;
+
+  if (alignment == gfx::ALIGN_RIGHT)
+    bounds.origin.x += NSWidth(bounds) - textSize.width;
+
+  [text drawInRect:bounds withAttributes:textAttributes];
+}
+
+#pragma mark -
+#pragma mark Public API:
+
+- (void)controllerDestroyed {
+  controller_ = NULL;
+  [super delegateDestroyed];
+}
+
+@end