[ios] Adds a LocationBarController interface.

ios/chrome/browser/ui/omnibox/location_bar_view_ios.mm

Index: ios/chrome/browser/ui/omnibox/location_bar_view_ios.mm
diff --git a/ios/chrome/browser/ui/omnibox/location_bar_view_ios.mm b/ios/chrome/browser/ui/omnibox/location_bar_view_ios.mm
deleted file mode 100644
index 8b30bdfe6873601ec1c7ed3a7cc32028031bb801..0000000000000000000000000000000000000000
--- a/ios/chrome/browser/ui/omnibox/location_bar_view_ios.mm
+++ /dev/null
@@ -1,333 +0,0 @@
-// 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 <UIKit/UIKit.h>
-
-#include "base/command_line.h"
-#include "base/logging.h"
-#include "base/macros.h"
-#include "base/strings/string16.h"
-#include "components/omnibox/browser/omnibox_edit_model.h"
-#include "components/security_state/core/security_state_ui.h"
-#include "components/strings/grit/components_strings.h"
-#include "components/toolbar/toolbar_model.h"
-#include "ios/chrome/browser/browser_state/chrome_browser_state.h"
-#include "ios/chrome/browser/chrome_url_constants.h"
-#include "ios/chrome/browser/experimental_flags.h"
-#include "ios/chrome/browser/ui/commands/UIKit+ChromeExecuteCommand.h"
-#include "ios/chrome/browser/ui/commands/ios_command_ids.h"
-#include "ios/chrome/browser/ui/omnibox/location_bar_view_ios.h"
-#import "ios/chrome/browser/ui/omnibox/omnibox_text_field_ios.h"
-#include "ios/chrome/browser/ui/omnibox/omnibox_view_ios.h"
-#include "ios/chrome/browser/ui/ui_util.h"
-#import "ios/chrome/browser/ui/uikit_ui_util.h"
-#include "ios/chrome/grit/ios_strings.h"
-#include "ios/chrome/grit/ios_theme_resources.h"
-#import "ios/third_party/material_roboto_font_loader_ios/src/src/MaterialRobotoFontLoader.h"
-#include "ios/web/public/navigation_item.h"
-#include "ios/web/public/navigation_manager.h"
-#include "ios/web/public/ssl_status.h"
-#include "ios/web/public/web_state/web_state.h"
-#include "ui/base/l10n/l10n_util.h"
-
-#if !defined(__has_feature) || !__has_feature(objc_arc)
-#error "This file requires ARC support."
-#endif
-
-namespace {
-const CGFloat kClearTextButtonWidth = 28;
-const CGFloat kClearTextButtonHeight = 28;
-
-// Workaround for https://crbug.com/527084 . If there is connection
-// information, always show the icon. Remove this once connection info
-// is available via other UI: https://crbug.com/533581
-bool DoesCurrentPageHaveCertInfo(web::WebState* webState) {
-  if (!webState)
-    return false;
-  web::NavigationManager* navigationMangager = webState->GetNavigationManager();
-  if (!navigationMangager)
-    return false;
-  web::NavigationItem* visibleItem = navigationMangager->GetVisibleItem();
-  if (!visibleItem)
-    return false;
-
-  const web::SSLStatus& SSLStatus = visibleItem->GetSSL();
-  // Evaluation of |security_style| SSLStatus field in WKWebView based app is an
-  // asynchronous operation, so for a short period of time SSLStatus may have
-  // non-null certificate and SECURITY_STYLE_UNKNOWN |security_style|.
-  return SSLStatus.certificate &&
-         SSLStatus.security_style != web::SECURITY_STYLE_UNKNOWN;
-}
-
-// Returns whether the |webState| is presenting an offline page.
-bool IsCurrentPageOffline(web::WebState* webState) {
-  if (!webState)
-    return false;
-  auto* navigationManager = webState->GetNavigationManager();
-  auto* visibleItem = navigationManager->GetVisibleItem();
-  if (!visibleItem)
-    return false;
-  const GURL& url = visibleItem->GetURL();
-  return url.SchemeIs(kChromeUIScheme) && url.host() == kChromeUIOfflineHost;
-}
-
-}  // namespace
-
-// An ObjC bridge class to allow taps on the clear button to be sent to a C++
-// class.
-@interface OmniboxClearButtonBridge : NSObject
-
-- (instancetype)initWithOmniboxView:(OmniboxViewIOS*)omniboxView
-    NS_DESIGNATED_INITIALIZER;
-
-- (instancetype)init NS_UNAVAILABLE;
-
-- (void)clearText;
-
-@end
-
-@implementation OmniboxClearButtonBridge {
-  OmniboxViewIOS* _omniboxView;
-}
-
-- (instancetype)initWithOmniboxView:(OmniboxViewIOS*)omniboxView {
-  self = [super init];
-  if (self) {
-    _omniboxView = omniboxView;
-  }
-  return self;
-}
-
-- (instancetype)init {
-  NOTREACHED();
-  return nil;
-}
-
-- (void)clearText {
-  _omniboxView->ClearText();
-}
-
-@end
-
-LocationBarViewIOS::LocationBarViewIOS(OmniboxTextFieldIOS* field,
-                                       ios::ChromeBrowserState* browser_state,
-                                       id<PreloadProvider> preloader,
-                                       id<OmniboxPopupPositioner> positioner,
-                                       id<LocationBarDelegate> delegate)
-    : edit_view_(new OmniboxViewIOS(field,
-                                    this,
-                                    browser_state,
-                                    preloader,
-                                    positioner)),
-      field_(field),
-      delegate_(delegate) {
-  DCHECK([delegate_ toolbarModel]);
-  show_hint_text_ = true;
-
-  InstallLocationIcon();
-  CreateClearTextIcon(browser_state->IsOffTheRecord());
-}
-
-LocationBarViewIOS::~LocationBarViewIOS() {}
-
-void LocationBarViewIOS::HideKeyboardAndEndEditing() {
-  edit_view_->HideKeyboardAndEndEditing();
-}
-
-void LocationBarViewIOS::SetShouldShowHintText(bool show_hint_text) {
-  show_hint_text_ = show_hint_text;
-}
-
-const OmniboxView* LocationBarViewIOS::GetLocationEntry() const {
-  return edit_view_.get();
-}
-
-OmniboxView* LocationBarViewIOS::GetLocationEntry() {
-  return edit_view_.get();
-}
-
-void LocationBarViewIOS::OnToolbarUpdated() {
-  edit_view_->UpdateAppearance();
-  OnChanged();
-}
-
-void LocationBarViewIOS::OnAutocompleteAccept(
-    const GURL& gurl,
-    WindowOpenDisposition disposition,
-    ui::PageTransition transition,
-    AutocompleteMatchType::Type type) {
-  if (gurl.is_valid()) {
-    transition = ui::PageTransitionFromInt(
-        transition | ui::PAGE_TRANSITION_FROM_ADDRESS_BAR);
-    [delegate_ loadGURLFromLocationBar:gurl transition:transition];
-  }
-}
-
-void LocationBarViewIOS::OnChanged() {
-  const bool page_is_offline = IsCurrentPageOffline(GetWebState());
-  const int resource_id = edit_view_->GetIcon(page_is_offline);
-  [field_ setPlaceholderImage:resource_id];
-
-  // TODO(rohitrao): Can we get focus information from somewhere other than the
-  // model?
-  if (!IsIPadIdiom() && !edit_view_->model()->has_focus()) {
-    ToolbarModel* toolbarModel = [delegate_ toolbarModel];
-    if (toolbarModel) {
-      bool show_icon_for_state = security_state::ShouldAlwaysShowIcon(
-          toolbarModel->GetSecurityLevel(false));
-      bool page_has_downgraded_HTTPS =
-          experimental_flags::IsPageIconForDowngradedHTTPSEnabled() &&
-          DoesCurrentPageHaveCertInfo(GetWebState());
-      if (show_icon_for_state || page_has_downgraded_HTTPS || page_is_offline) {
-        [field_ showPlaceholderImage];
-        is_showing_placeholder_while_collapsed_ = true;
-      } else {
-        [field_ hidePlaceholderImage];
-        is_showing_placeholder_while_collapsed_ = false;
-      }
-    }
-  }
-  UpdateRightDecorations();
-  [delegate_ locationBarChanged];
-
-  NSString* placeholderText =
-      show_hint_text_ ? l10n_util::GetNSString(IDS_OMNIBOX_EMPTY_HINT) : nil;
-  [field_ setPlaceholder:placeholderText];
-}
-
-bool LocationBarViewIOS::IsShowingPlaceholderWhileCollapsed() {
-  return is_showing_placeholder_while_collapsed_;
-}
-
-void LocationBarViewIOS::OnInputInProgress(bool in_progress) {
-  if ([delegate_ toolbarModel])
-    [delegate_ toolbarModel]->set_input_in_progress(in_progress);
-  if (in_progress)
-    [delegate_ locationBarBeganEdit];
-}
-
-void LocationBarViewIOS::OnKillFocus() {
-  // Hide the location icon on phone.  A subsequent call to OnChanged() will
-  // bring the icon back if needed.
-  if (!IsIPadIdiom()) {
-    [field_ hidePlaceholderImage];
-    is_showing_placeholder_while_collapsed_ = false;
-  }
-
-  // Update the placeholder icon.
-  const int resource_id =
-      edit_view_->GetIcon(IsCurrentPageOffline(GetWebState()));
-  [field_ setPlaceholderImage:resource_id];
-
-  // Show the placeholder text on iPad.
-  if (IsIPadIdiom()) {
-    NSString* placeholderText = l10n_util::GetNSString(IDS_OMNIBOX_EMPTY_HINT);
-    [field_ setPlaceholder:placeholderText];
-  }
-
-  UpdateRightDecorations();
-  [delegate_ locationBarHasResignedFirstResponder];
-}
-
-void LocationBarViewIOS::OnSetFocus() {
-  // Show the location icon on phone.
-  if (!IsIPadIdiom())
-    [field_ showPlaceholderImage];
-
-  // Update the placeholder icon.
-  const int resource_id =
-      edit_view_->GetIcon(IsCurrentPageOffline(GetWebState()));
-  [field_ setPlaceholderImage:resource_id];
-
-  // Hide the placeholder text on iPad.
-  if (IsIPadIdiom()) {
-    [field_ setPlaceholder:nil];
-  }
-  UpdateRightDecorations();
-  [delegate_ locationBarHasBecomeFirstResponder];
-}
-
-const ToolbarModel* LocationBarViewIOS::GetToolbarModel() const {
-  return [delegate_ toolbarModel];
-}
-
-ToolbarModel* LocationBarViewIOS::GetToolbarModel() {
-  return [delegate_ toolbarModel];
-}
-
-web::WebState* LocationBarViewIOS::GetWebState() {
-  return [delegate_ getWebState];
-}
-
-void LocationBarViewIOS::InstallLocationIcon() {
-  // Set the placeholder for empty omnibox.
-  UIButton* button = [UIButton buttonWithType:UIButtonTypeCustom];
-  UIImage* image = NativeImage(IDR_IOS_OMNIBOX_SEARCH);
-  [button setImage:image forState:UIControlStateNormal];
-  [button setFrame:CGRectMake(0, 0, image.size.width, image.size.height)];
-  [button addTarget:nil
-                action:@selector(chromeExecuteCommand:)
-      forControlEvents:UIControlEventTouchUpInside];
-  [button setTag:IDC_SHOW_PAGE_INFO];
-  SetA11yLabelAndUiAutomationName(
-      button, IDS_IOS_PAGE_INFO_SECURITY_BUTTON_ACCESSIBILITY_LABEL,
-      @"Page Security Info");
-  [button setIsAccessibilityElement:YES];
-
-  // Set chip text options.
-  [button setTitleColor:[UIColor colorWithWhite:0.631 alpha:1]
-               forState:UIControlStateNormal];
-  [button titleLabel].font =
-      [[MDFRobotoFontLoader sharedInstance] regularFontOfSize:12];
-  [field_ setLeftView:button];
-
-  // The placeholder image is only shown when in edit mode on iPhone, and always
-  // shown on iPad.
-  if (IsIPadIdiom())
-    [field_ setLeftViewMode:UITextFieldViewModeAlways];
-  else
-    [field_ setLeftViewMode:UITextFieldViewModeNever];
-}
-
-void LocationBarViewIOS::CreateClearTextIcon(bool is_incognito) {
-  UIButton* button = [UIButton buttonWithType:UIButtonTypeCustom];
-  UIImage* omniBoxClearImage = is_incognito
-                                   ? NativeImage(IDR_IOS_OMNIBOX_CLEAR_OTR)
-                                   : NativeImage(IDR_IOS_OMNIBOX_CLEAR);
-  UIImage* omniBoxClearPressedImage =
-      is_incognito ? NativeImage(IDR_IOS_OMNIBOX_CLEAR_OTR_PRESSED)
-                   : NativeImage(IDR_IOS_OMNIBOX_CLEAR_PRESSED);
-  [button setImage:omniBoxClearImage forState:UIControlStateNormal];
-  [button setImage:omniBoxClearPressedImage forState:UIControlStateHighlighted];
-
-  CGRect frame = CGRectZero;
-  frame.size = CGSizeMake(kClearTextButtonWidth, kClearTextButtonHeight);
-  [button setFrame:frame];
-
-  clear_button_bridge_.reset(
-      [[OmniboxClearButtonBridge alloc] initWithOmniboxView:edit_view_.get()]);
-  [button addTarget:clear_button_bridge_
-                action:@selector(clearText)
-      forControlEvents:UIControlEventTouchUpInside];
-  clear_text_button_.reset(button);
-
-  SetA11yLabelAndUiAutomationName(clear_text_button_,
-                                  IDS_IOS_ACCNAME_CLEAR_TEXT, @"Clear Text");
-}
-
-void LocationBarViewIOS::UpdateRightDecorations() {
-  DCHECK(clear_text_button_);
-  if (!edit_view_->model()->has_focus()) {
-    // Do nothing for iPhone. The right view will be set to nil after the
-    // omnibox animation is completed.
-    if (IsIPadIdiom())
-      [field_ setRightView:nil];
-  } else if ([field_ displayedText].empty() &&
-             ![field_ isShowingQueryRefinementChip]) {
-    [field_ setRightView:nil];
-  } else {
-    [field_ setRightView:clear_text_button_];
-    [clear_text_button_ setAlpha:1];
-  }
-}