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1 // Copyright 2016 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 // ====== New Architecture ===== | |
6 // = This code is only used in the new iOS Chrome architecture. = | |
7 // ============================================================================ | |
8 | |
9 #import "ios/chrome/browser/ui/tab_grid/tab_grid_coordinator.h" | |
10 | |
11 #include <memory> | |
12 | |
13 #include "base/strings/sys_string_conversions.h" | |
14 #import "ios/chrome/browser/browser_coordinator+internal.h" | |
15 #include "ios/chrome/browser/browser_state/chrome_browser_state.h" | |
16 #import "ios/chrome/browser/ui/commands/settings_commands.h" | |
17 #import "ios/chrome/browser/ui/commands/tab_commands.h" | |
18 #import "ios/chrome/browser/ui/commands/tab_grid_commands.h" | |
19 #import "ios/chrome/browser/ui/settings/settings_coordinator.h" | |
20 #import "ios/chrome/browser/ui/tab/tab_coordinator.h" | |
21 #import "ios/chrome/browser/ui/tab_grid/tab_grid_view_controller.h" | |
22 #import "ios/web/public/navigation_manager.h" | |
23 #include "ios/web/public/web_state/web_state.h" | |
24 #import "net/base/mac/url_conversions.h" | |
25 #include "ui/base/page_transition_types.h" | |
26 | |
27 #if !defined(__has_feature) || !__has_feature(objc_arc) | |
28 #error "This file requires ARC support." | |
29 #endif | |
30 | |
31 @interface TabGridCoordinator ()<TabGridDataSource, | |
32 SettingsCommands, | |
33 TabCommands, | |
34 TabGridCommands> | |
35 @property(nonatomic, strong) TabGridViewController* viewController; | |
36 @property(nonatomic, weak) SettingsCoordinator* settingsCoordinator; | |
37 @end | |
38 | |
39 @implementation TabGridCoordinator { | |
40 std::unique_ptr<web::WebState> _placeholderWebState; | |
41 } | |
42 | |
43 @synthesize viewController = _viewController; | |
44 @synthesize settingsCoordinator = _settingsCoordinator; | |
45 | |
46 #pragma mark - BrowserCoordinator | |
47 | |
48 - (void)start { | |
49 self.viewController = [[TabGridViewController alloc] init]; | |
50 self.viewController.dataSource = self; | |
51 self.viewController.settingsCommandHandler = self; | |
52 self.viewController.tabCommandHandler = self; | |
53 self.viewController.tabGridCommandHandler = self; | |
54 | |
55 // |rootViewController| is nullable, so this is by design a no-op if it hasn't | |
56 // been set. This may be true in a unit test, or if this coordinator is being | |
57 // used as a root coordinator. | |
58 [self.rootViewController presentViewController:self.viewController | |
59 animated:YES | |
60 completion:nil]; | |
61 } | |
62 | |
63 #pragma mark - TabGridDataSource | |
64 | |
65 - (NSUInteger)numberOfTabsInTabGrid { | |
66 return 1; | |
67 } | |
68 | |
69 - (NSString*)titleAtIndex:(NSInteger)index { | |
70 // Placeholder implementation: ignore |index| and return the placeholder | |
71 // web state, lazily creating it if needed. | |
72 if (!_placeholderWebState.get()) { | |
73 web::WebState::CreateParams webStateCreateParams(self.browserState); | |
74 _placeholderWebState = web::WebState::Create(webStateCreateParams); | |
75 _placeholderWebState->SetWebUsageEnabled(true); | |
76 } | |
77 GURL url = _placeholderWebState.get()->GetVisibleURL(); | |
78 NSString* urlText = @"<New Tab>"; | |
79 if (!url.is_valid()) { | |
80 urlText = base::SysUTF8ToNSString(url.spec()); | |
81 } | |
82 return urlText; | |
83 } | |
84 | |
85 #pragma mark - TabCommands | |
86 | |
87 - (void)showTabAtIndexPath:(NSIndexPath*)indexPath { | |
88 DCHECK(_placeholderWebState); | |
89 | |
90 TabCoordinator* tabCoordinator = [[TabCoordinator alloc] init]; | |
91 tabCoordinator.webState = _placeholderWebState.get(); | |
92 tabCoordinator.presentationKey = indexPath; | |
93 [self addChildCoordinator:tabCoordinator]; | |
94 [tabCoordinator start]; | |
95 } | |
96 | |
97 #pragma mark - TabGridCommands | |
98 | |
99 - (void)showTabGrid { | |
100 // This object should only ever have at most one child. | |
101 DCHECK_LE(self.children.count, 1UL); | |
102 BrowserCoordinator* child = [self.children anyObject]; | |
103 [child stop]; | |
104 [self removeChildCoordinator:child]; | |
105 } | |
106 | |
107 #pragma mark - SettingsCommands | |
108 | |
109 - (void)showSettings { | |
110 SettingsCoordinator* settingsCoordinator = [[SettingsCoordinator alloc] init]; | |
111 settingsCoordinator.settingsCommandHandler = self; | |
112 [self addOverlayCoordinator:settingsCoordinator]; | |
113 self.settingsCoordinator = settingsCoordinator; | |
114 [settingsCoordinator start]; | |
115 } | |
116 | |
117 - (void)closeSettings { | |
118 [self.settingsCoordinator stop]; | |
119 [self.settingsCoordinator.parentCoordinator | |
120 removeChildCoordinator:self.settingsCoordinator]; | |
121 // self.settingsCoordinator should be presumed to be nil after this point. | |
122 } | |
123 | |
124 #pragma mark - URLOpening | |
125 | |
126 - (void)openURL:(NSURL*)URL { | |
127 [self.overlayCoordinator stop]; | |
128 [self removeOverlayCoordinator]; | |
129 web::NavigationManager::WebLoadParams params(net::GURLWithNSURL(URL)); | |
130 params.transition_type = ui::PAGE_TRANSITION_LINK; | |
131 _placeholderWebState->GetNavigationManager()->LoadURLWithParams(params); | |
132 if (!self.children.count) { | |
133 // Placeholder — since there's only one tab in the grid, just open | |
134 // the tab at index path (0,0). | |
135 [self showTabAtIndexPath:[NSIndexPath indexPathForItem:0 inSection:0]]; | |
136 } | |
137 } | |
138 | |
139 @end | |
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