Constrained window sheet controller (test patch)

chrome/browser/ui/cocoa/constrained_window/cw_alert.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 "chrome/browser/ui/cocoa/constrained_window/cw_alert.h"
-
-#import "base/logging.h"
-#import "chrome/browser/ui/cocoa/constrained_window/cw_button.h"
-#import "chrome/browser/ui/cocoa/constrained_window/cw_window.h"
-#import "chrome/browser/ui/cocoa/hover_close_button.h"
-#import "chrome/browser/ui/constrained_window.h"
-#include "skia/ext/skia_utils_mac.h"
-#include "ui/base/cocoa/window_size_constants.h"
-
-namespace {
-
-const CGFloat kWindowMinWidth = 500;
-const CGFloat kButtonGap = 6;
-const CGFloat kButtonMinWidth = 72;
-const CGFloat kCloseButtonSize = 16;
-
-scoped_nsobject<NSTextField> CreateLabel() {
-  scoped_nsobject<NSTextField> label(
-      [[NSTextField alloc] initWithFrame:NSZeroRect]);
-  [label setEditable:NO];
-  [label setSelectable:NO];
-  [label setBezeled:NO];
-  [label setDrawsBackground:NO];
-  return label;
-}
-
-NSSize CalculateDesiredSizeForWidth(NSTextField* text_field, CGFloat width) {
-  NSRect rect = NSMakeRect(0, 0, width, 1000);
-  return [[text_field cell] cellSizeForBounds:rect];
-}
-
-NSAttributedString* GetAttributedLabelString(
-    NSString* string,
-    ui::ResourceBundle::FontStyle font_style) {
-  const gfx::Font& font =
-      ui::ResourceBundle::GetSharedInstance().GetFont(font_style);
-  NSColor* color =
-      gfx::SkColorToCalibratedNSColor(ConstrainedWindow::kTextColor);
-  NSDictionary* attributes = [NSDictionary dictionaryWithObjectsAndKeys:
-      font.GetNativeFont(), NSFontAttributeName,
-      color, NSForegroundColorAttributeName,
-      nil];
-  return [[[NSAttributedString alloc] initWithString:string
-                                          attributes:attributes] autorelease];
-}
-
-}  // namespace
-
-@interface CWAlert()
-- (void)layoutButtonsWithWindowWidth: (CGFloat)windowWidth;
-- (CGFloat)layoutTextField:(NSTextField*)textField
-                      yPos:(CGFloat)yPos
-               windowWidth:(CGFloat)windowWidth;
-- (CGFloat)layoutAccessoryViewAtYPos:(CGFloat)yPos;
-- (void)layoutCloseButtonWithWindowWidth:(CGFloat)windowWidth;
-@end
-
-@implementation CWAlert
-
-- (NSString*)informativeText {
-  return [informativeTextField_ stringValue];
-}
-
-- (void)setInformativeText:(NSString*)string {
-  [informativeTextField_ setAttributedStringValue:
-      GetAttributedLabelString(string, ConstrainedWindow::kTextFontStyle)];
-}
-
-- (NSString*)messageText {
-  return [messageTextField_ stringValue];
-}
-
-- (void)setMessageText:(NSString*)string {
-  [messageTextField_ setAttributedStringValue:
-      GetAttributedLabelString(string, ConstrainedWindow::kTitleFontStyle)];
-}
-
-- (NSView*)accessoryView {
-  return accessoryView_;
-}
-
-- (void)setAccessoryView:(NSView*)accessoryView {
-  [accessoryView_ removeFromSuperview];
-  accessoryView_.reset([accessoryView retain]);
-  [[window_ contentView] addSubview:accessoryView_];
-}
-
-- (NSArray*)buttons {
-  return buttons_;
-}
-
-- (NSButton*)closeButton {
-  return closeButton_;
-}
-
-- (NSWindow*)window {
-  return window_;
-}
-
-- (id)init {
-  if ((self = [super init])) {
-    window_.reset([[CWWindow alloc]
-        initWithContentRect:ui::kWindowSizeDeterminedLater]);
-    [window_ setReleasedWhenClosed:NO];
-    NSView* content_view = [window_ contentView];
-
-    informativeTextField_ = CreateLabel();
-    [content_view addSubview:informativeTextField_];
-    messageTextField_ = CreateLabel();
-    [content_view addSubview:messageTextField_];
-
-    closeButton_.reset([[HoverCloseButton alloc] initWithFrame:NSZeroRect]);
-    [content_view addSubview:closeButton_];
-  }
-  return self;
-}
-
-- (void)addButtonWithTitle:(NSString*)title
-             keyEquivalent:(NSString*)keyEquivalent {
-  if (!buttons_.get())
-    buttons_.reset([[NSMutableArray alloc] init]);
-  NSButton* button = [[CWButton alloc] initWithFrame:NSZeroRect];
-  [button setTitle:title];
-  [button setKeyEquivalent:keyEquivalent];
-  [buttons_ addObject:button];
-  [[window_ contentView] addSubview:button];
-}
-
-- (void)layout {
-  // Button width
-  CGFloat buttonWidth = 0;
-  for (NSButton* button in buttons_.get()) {
-    [button sizeToFit];
-    NSSize size = [button frame].size;
-    if (size.width < kButtonMinWidth) {
-      size.width = kButtonMinWidth;
-      [button setFrameSize:size];
-    }
-    buttonWidth += size.width;
-  }
-  buttonWidth += ([buttons_ count] - 1) * kButtonGap;
-
-  // Window width.
-  CGFloat windowWidth = buttonWidth;
-  if (accessoryView_.get())
-    windowWidth = std::max(windowWidth, NSWidth([accessoryView_ frame]));
-  windowWidth += ConstrainedWindow::kHorizontalPadding * 2;
-  windowWidth = std::max(windowWidth, kWindowMinWidth);
-
-  // Layout controls
-  [self layoutButtonsWithWindowWidth:windowWidth];
-  CGFloat curY = NSMaxY([[buttons_ lastObject] frame]);
-  curY = [self layoutAccessoryViewAtYPos:curY];
-  curY = [self layoutTextField:informativeTextField_
-                          yPos:curY
-                   windowWidth:windowWidth];
-  curY = [self layoutTextField:messageTextField_
-                          yPos:curY
-                   windowWidth:windowWidth - kCloseButtonSize - kButtonGap];
-  [self layoutCloseButtonWithWindowWidth:windowWidth];
-
-  // Update window frame
-  curY += ConstrainedWindow::kVerticalPadding;
-  [window_ setFrame:NSMakeRect(0, 0, windowWidth, curY)
-            display:NO];
-}
-
-- (void)layoutButtonsWithWindowWidth: (CGFloat)windowWidth {
-  // Layout first 2 button right to left.
-  CGFloat curX = windowWidth - ConstrainedWindow::kHorizontalPadding;
-  const int buttonCount = [buttons_ count];
-  DCHECK_GE(buttonCount, 2);
-  for (int i = 0; i < 2; ++i) {
-    NSButton* button = [buttons_ objectAtIndex:i];
-    NSRect rect = [button frame];
-    rect.origin.x = curX - NSWidth(rect);
-    rect.origin.y = ConstrainedWindow::kVerticalPadding;
-    [button setFrameOrigin:rect.origin];
-    curX = NSMinX(rect) - kButtonGap;
-  }
-
-  // Layout remaining buttons left to right.
-  curX = ConstrainedWindow::kHorizontalPadding;
-  for (int i = buttonCount - 1; i >= 2; --i) {
-    NSButton* button = [buttons_ objectAtIndex:i];
-    [button setFrameOrigin:
-        NSMakePoint(curX, ConstrainedWindow::kVerticalPadding)];
-    curX += NSMaxX([button frame]) + kButtonGap;
-  }
-}
-
-- (CGFloat)layoutTextField:(NSTextField*)textField
-                      yPos:(CGFloat)yPos
-               windowWidth:(CGFloat)windowWidth {
-  if (![[textField stringValue] length]) {
-    [textField setHidden:YES];
-    return yPos;
-  }
-
-  [textField setHidden:NO];
-  NSRect rect;
-  rect.size = CalculateDesiredSizeForWidth(
-      textField, windowWidth - ConstrainedWindow::kHorizontalPadding * 2);
-  rect.origin.y = yPos + ConstrainedWindow::kRowPadding;
-  rect.origin.x = ConstrainedWindow::kHorizontalPadding;
-  [textField setFrame:rect];
-  return NSMaxY(rect);
-}
-
-- (CGFloat)layoutAccessoryViewAtYPos:(CGFloat)yPos {
-  if (!accessoryView_.get())
-    return yPos;
-  NSRect frame = [accessoryView_ frame];
-  frame.origin.y = yPos + ConstrainedWindow::kRowPadding;
-  frame.origin.x = ConstrainedWindow::kHorizontalPadding;
-  [accessoryView_ setFrameOrigin:frame.origin];
-  return NSMaxY(frame);
-}
-
-- (void)layoutCloseButtonWithWindowWidth:(CGFloat)windowWidth {
-  NSRect frame;
-  frame.size.width = kCloseButtonSize;
-  frame.size.height = kCloseButtonSize;
-  frame.origin.x =
-      windowWidth - ConstrainedWindow::kHorizontalPadding - NSWidth(frame);
-  frame.origin.y = NSMaxY([messageTextField_ frame]) - NSHeight(frame);
-  [closeButton_ setFrame:frame];
-}
-
-@end