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1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#import "chrome/browser/ui/cocoa/browser/password_generation_bubble_controller.h"
6
7#include "base/mac/foundation_util.h"
8#include "base/strings/sys_string_conversions.h"
9#include "chrome/browser/ui/browser.h"
10#include "chrome/browser/ui/browser_window.h"
11#import "chrome/browser/ui/cocoa/info_bubble_view.h"
12#import "chrome/browser/ui/cocoa/info_bubble_window.h"
13#include "chrome/browser/ui/cocoa/key_equivalent_constants.h"
14#import "chrome/browser/ui/cocoa/styled_text_field_cell.h"
15#include "components/autofill/content/common/autofill_messages.h"
16#include "components/autofill/core/browser/password_generator.h"
17#include "components/autofill/core/common/password_form.h"
18#include "components/autofill/core/common/password_generation_util.h"
19#include "components/password_manager/core/browser/password_manager.h"
20#include "content/public/browser/render_view_host.h"
21#include "grit/generated_resources.h"
22#include "grit/theme_resources.h"
23#import "ui/base/cocoa/tracking_area.h"
24#include "ui/base/l10n/l10n_util_mac.h"
25#include "ui/base/resource/resource_bundle.h"
26#include "ui/gfx/font_list.h"
27
28namespace {
29
30// Size of the border in the bubble.
31const CGFloat kBorderSize = 9.0;
32
33// Visible size of the textfield.
34const CGFloat kTextFieldHeight = 20.0;
35const CGFloat kTextFieldWidth = 172.0;
36
37// Frame padding necessary to make the textfield the correct visible size.
38const CGFloat kTextFieldTopPadding = 3.0;
39
40// Visible size of the button
41const CGFloat kButtonWidth = 63.0;
42const CGFloat kButtonHeight = 20.0;
43
44// Padding that is added to the frame around the button to make it the
45// correct visible size. Determined via visual inspection.
46const CGFloat kButtonHorizontalPadding = 6.0;
47const CGFloat kButtonVerticalPadding = 3.0;
48
49// Visible size of the title.
50const CGFloat kTitleWidth = 170.0;
51const CGFloat kTitleHeight = 15.0;
52
53// Space between the title and the textfield.
54const CGFloat kVerticalSpacing = 13.0;
55
56// Space between the textfield and the button.
57const CGFloat kHorizontalSpacing = 7.0;
58
59// We don't actually want the border to be kBorderSize on top as there is
60// whitespace in the title text that makes it looks substantially bigger.
61const CGFloat kTopBorderOffset = 3.0;
62
63const CGFloat kIconSize = 26.0;
64
65}  // namespace
66
67// Customized StyledTextFieldCell to display one button decoration that changes
68// on hover.
69@interface PasswordGenerationTextFieldCell : StyledTextFieldCell {
70 @private
71  PasswordGenerationBubbleController* controller_;
72  BOOL hovering_;
73  base::scoped_nsobject<NSImage> normalImage_;
74  base::scoped_nsobject<NSImage> hoverImage_;
75}
76
77- (void)setUpWithController:(PasswordGenerationBubbleController*)controller
78                normalImage:(NSImage*)normalImage
79                 hoverImage:(NSImage*)hoverImage;
80- (void)mouseEntered:(NSEvent*)theEvent
81              inView:(PasswordGenerationTextField*)controlView;
82- (void)mouseExited:(NSEvent*)theEvent
83             inView:(PasswordGenerationTextField*)controlView;
84- (BOOL)mouseDown:(NSEvent*)theEvent
85           inView:(PasswordGenerationTextField*)controlView;
86- (void)setUpTrackingAreaInRect:(NSRect)frame
87                         ofView:(PasswordGenerationTextField*)controlView;
88// Exposed for testing.
89- (void)iconClicked;
90@end
91
92@implementation PasswordGenerationTextField
93
94+ (Class)cellClass {
95  return [PasswordGenerationTextFieldCell class];
96}
97
98- (PasswordGenerationTextFieldCell*)cell {
99  return base::mac::ObjCCastStrict<PasswordGenerationTextFieldCell>(
100      [super cell]);
101}
102
103- (id)initWithFrame:(NSRect)frame
104     withController:(PasswordGenerationBubbleController*)controller
105        normalImage:(NSImage*)normalImage
106         hoverImage:(NSImage*)hoverImage {
107  self = [super initWithFrame:frame];
108  if (self) {
109    PasswordGenerationTextFieldCell* cell = [self cell];
110    [cell setUpWithController:controller
111                  normalImage:normalImage
112                   hoverImage:hoverImage];
113    [cell setUpTrackingAreaInRect:[self bounds] ofView:self];
114  }
115  return self;
116}
117
118- (void)mouseEntered:(NSEvent*)theEvent {
119  [[self cell] mouseEntered:theEvent inView:self];
120}
121
122- (void)mouseExited:(NSEvent*)theEvent {
123  [[self cell] mouseExited:theEvent inView:self];
124}
125
126- (void)mouseDown:(NSEvent*)theEvent {
127  // Let the cell handle the click if it's in the decoration.
128  if (![[self cell] mouseDown:theEvent inView:self]) {
129    if ([self currentEditor]) {
130      [[self currentEditor] mouseDown:theEvent];
131    } else {
132      // We somehow lost focus.
133      [super mouseDown:theEvent];
134    }
135  }
136}
137
138- (void)simulateIconClick {
139  [[self cell] iconClicked];
140}
141
142@end
143
144@implementation PasswordGenerationTextFieldCell
145
146- (void)setUpWithController:(PasswordGenerationBubbleController*)controller
147                normalImage:(NSImage*)normalImage
148                 hoverImage:(NSImage*)hoverImage {
149  controller_ = controller;
150  hovering_ = NO;
151  normalImage_.reset([normalImage retain]);
152  hoverImage_.reset([hoverImage retain]);
153  [self setLineBreakMode:NSLineBreakByTruncatingTail];
154  [self setTruncatesLastVisibleLine:YES];
155}
156
157- (void)splitFrame:(NSRect*)cellFrame toIconFrame:(NSRect*)iconFrame {
158  NSDivideRect(*cellFrame, iconFrame, cellFrame,
159               kIconSize, NSMaxXEdge);
160}
161
162- (NSRect)getIconFrame:(NSRect)cellFrame {
163  NSRect iconFrame;
164  [self splitFrame:&cellFrame toIconFrame:&iconFrame];
165  return iconFrame;
166}
167
168- (NSRect)getTextFrame:(NSRect)cellFrame {
169  NSRect iconFrame;
170  [self splitFrame:&cellFrame toIconFrame:&iconFrame];
171  return cellFrame;
172}
173
174- (BOOL)eventIsInDecoration:(NSEvent*)theEvent
175                     inView:(PasswordGenerationTextField*)controlView {
176  NSPoint mouseLocation = [controlView convertPoint:[theEvent locationInWindow]
177                                           fromView:nil];
178  NSRect cellFrame = [controlView bounds];
179  return NSMouseInRect(mouseLocation,
180                       [self getIconFrame:cellFrame],
181                       [controlView isFlipped]);
182}
183
184- (void)mouseEntered:(NSEvent*)theEvent
185              inView:(PasswordGenerationTextField*)controlView {
186  hovering_ = YES;
187  [controlView setNeedsDisplay:YES];
188}
189
190- (void)mouseExited:(NSEvent*)theEvent
191             inView:(PasswordGenerationTextField*)controlView {
192  hovering_ = NO;
193  [controlView setNeedsDisplay:YES];
194}
195
196- (BOOL)mouseDown:(NSEvent*)theEvent
197           inView:(PasswordGenerationTextField*)controlView {
198  if ([self eventIsInDecoration:theEvent inView:controlView]) {
199    [self iconClicked];
200    return YES;
201  }
202  return NO;
203}
204
205- (void)iconClicked {
206  [controller_ regeneratePassword];
207}
208
209- (NSImage*)getImage {
210  if (hovering_)
211    return hoverImage_;
212  return normalImage_;
213}
214
215- (NSRect)adjustFrameForFrame:(NSRect)frame {
216  // By default, there appears to be a 2 pixel gap between what is considered
217  // part of the textFrame and what is considered part of the icon.
218  // TODO(gcasto): This really should be fixed in StyledTextFieldCell, as it
219  // looks like the location bar also suffers from this issue.
220  frame.size.width += 2;
221  return frame;
222}
223
224- (NSRect)textFrameForFrame:(NSRect)cellFrame {
225  // Baseclass insets the rect by top and bottom offsets.
226  NSRect textFrame = [super textFrameForFrame:cellFrame];
227  textFrame = [self getTextFrame:textFrame];
228  return [self adjustFrameForFrame:textFrame];
229}
230
231- (NSRect)textCursorFrameForFrame:(NSRect)cellFrame {
232  NSRect textFrame = [self getTextFrame:cellFrame];
233  return [self adjustFrameForFrame:textFrame];
234}
235
236- (void)drawInteriorWithFrame:(NSRect)cellFrame inView:(NSView*)controlView {
237  NSImage* image = [self getImage];
238  NSRect iconFrame = [self getIconFrame:cellFrame];
239  // Center the image in the available space. At the moment the image is
240  // slightly larger than the frame so we crop it.
241  // Offset the full difference on the left hand side since the border on the
242  // right takes up some space. Offset half the vertical difference on the
243  // bottom so that the image stays vertically centered.
244  const CGFloat xOffset = [image size].width - NSWidth(iconFrame);
245  const CGFloat yOffset = ([image size].height - (NSHeight(iconFrame))) / 2.0;
246  NSRect croppedRect = NSMakeRect(xOffset,
247                                  yOffset,
248                                  NSWidth(iconFrame),
249                                  NSHeight(iconFrame));
250
251  [image drawInRect:iconFrame
252           fromRect:croppedRect
253          operation:NSCompositeSourceOver
254           fraction:1.0
255     respectFlipped:YES
256              hints:nil];
257
258  [super drawInteriorWithFrame:cellFrame inView:controlView];
259}
260
261- (void)setUpTrackingAreaInRect:(NSRect)frame
262                         ofView:(PasswordGenerationTextField*)view {
263  NSRect iconFrame = [self getIconFrame:frame];
264  base::scoped_nsobject<CrTrackingArea> area(
265      [[CrTrackingArea alloc] initWithRect:iconFrame
266                                   options:NSTrackingMouseEnteredAndExited |
267          NSTrackingActiveAlways owner:view userInfo:nil]);
268  [view addTrackingArea:area];
269}
270
271- (CGFloat)topTextFrameOffset {
272  return 1.0;
273}
274
275- (CGFloat)bottomTextFrameOffset {
276  return 1.0;
277}
278
279- (CGFloat)cornerRadius {
280  return 4.0;
281}
282
283- (BOOL)shouldDrawBezel {
284  return YES;
285}
286
287@end
288
289@implementation PasswordGenerationBubbleController
290
291@synthesize textField = textField_;
292
293- (id)initWithWindow:(NSWindow*)parentWindow
294          anchoredAt:(NSPoint)point
295      renderViewHost:(content::RenderViewHost*)renderViewHost
296     passwordManager:(password_manager::PasswordManager*)passwordManager
297      usingGenerator:(autofill::PasswordGenerator*)passwordGenerator
298             forForm:(const autofill::PasswordForm&)form {
299  CGFloat width = (kBorderSize*2 +
300                   kTextFieldWidth +
301                   kHorizontalSpacing +
302                   kButtonWidth);
303  CGFloat height = (kBorderSize*2 +
304                    kTextFieldHeight +
305                    kVerticalSpacing +
306                    kTitleHeight -
307                    kTopBorderOffset +
308                    info_bubble::kBubbleArrowHeight);
309  NSRect contentRect = NSMakeRect(0, 0, width, height);
310  base::scoped_nsobject<InfoBubbleWindow> window(
311      [[InfoBubbleWindow alloc] initWithContentRect:contentRect
312                                          styleMask:NSBorderlessWindowMask
313                                            backing:NSBackingStoreBuffered
314                                              defer:NO]);
315  if (self = [super initWithWindow:window
316                      parentWindow:parentWindow
317                        anchoredAt:point]) {
318    passwordGenerator_ = passwordGenerator;
319    renderViewHost_ = renderViewHost;
320    passwordManager_ = passwordManager;
321    form_ = form;
322    [[self bubble] setArrowLocation:info_bubble::kTopLeft];
323    [self performLayout];
324  }
325
326  return self;
327}
328
329- (void)performLayout {
330  NSView* contentView = [[self window] contentView];
331  ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
332
333  textField_ = [[[PasswordGenerationTextField alloc]
334      initWithFrame:NSMakeRect(kBorderSize,
335                               kBorderSize,
336                               kTextFieldWidth,
337                               kTextFieldHeight + kTextFieldTopPadding)
338     withController:self
339        normalImage:rb.GetNativeImageNamed(IDR_RELOAD_DIMMED).ToNSImage()
340         hoverImage:rb.GetNativeImageNamed(IDR_RELOAD)
341             .ToNSImage()] autorelease];
342  const gfx::FontList& smallBoldFont =
343      rb.GetFontList(ui::ResourceBundle::SmallBoldFont);
344  [textField_ setFont:smallBoldFont.GetPrimaryFont().GetNativeFont()];
345  [textField_
346    setStringValue:base::SysUTF8ToNSString(passwordGenerator_->Generate())];
347  [textField_ setDelegate:self];
348  [contentView addSubview:textField_];
349
350  CGFloat buttonX = (NSMaxX([textField_ frame]) +
351                     kHorizontalSpacing -
352                     kButtonHorizontalPadding);
353  CGFloat buttonY = kBorderSize - kButtonVerticalPadding;
354  NSButton* button =
355      [[NSButton alloc] initWithFrame:NSMakeRect(
356            buttonX,
357            buttonY,
358            kButtonWidth + 2 * kButtonHorizontalPadding,
359            kButtonHeight + 2 * kButtonVerticalPadding)];
360  [button setBezelStyle:NSRoundedBezelStyle];
361  [button setTitle:l10n_util::GetNSString(IDS_PASSWORD_GENERATION_BUTTON_TEXT)];
362  [button setTarget:self];
363  [button setAction:@selector(fillPassword:)];
364  [contentView addSubview:button];
365
366  base::scoped_nsobject<NSTextField> title([[NSTextField alloc] initWithFrame:
367          NSMakeRect(kBorderSize,
368                     kBorderSize + kTextFieldHeight + kVerticalSpacing,
369                     kTitleWidth,
370                     kTitleHeight)]);
371  [title setEditable:NO];
372  [title setBordered:NO];
373  [title setStringValue:l10n_util::GetNSString(
374        IDS_PASSWORD_GENERATION_BUBBLE_TITLE)];
375  [contentView addSubview:title];
376}
377
378- (IBAction)fillPassword:(id)sender {
379  if (renderViewHost_) {
380    renderViewHost_->Send(
381        new AutofillMsg_GeneratedPasswordAccepted(
382            renderViewHost_->GetRoutingID(),
383            base::SysNSStringToUTF16([textField_ stringValue])));
384  }
385  if (passwordManager_)
386    passwordManager_->SetFormHasGeneratedPassword(form_);
387
388  actions_.password_accepted = true;
389  [self close];
390}
391
392- (void)regeneratePassword {
393  [textField_
394    setStringValue:base::SysUTF8ToNSString(passwordGenerator_->Generate())];
395  actions_.password_regenerated = true;
396}
397
398- (void)controlTextDidChange:(NSNotification*)notification {
399  actions_.password_edited = true;
400}
401
402- (void)windowWillClose:(NSNotification*)notification {
403  autofill::password_generation::LogUserActions(actions_);
404  [super windowWillClose:notification];
405}
406
407@end
408