1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
// Copyright 2013 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 "components/autofill/ios/browser/js_suggestion_manager.h"
#include <vector>
#include "base/callback.h"
#include "base/format_macros.h"
#include "base/json/string_escape.h"
#include "base/logging.h"
#include "base/strings/sys_string_conversions.h"
#include "base/values.h"
#include "components/autofill/ios/browser/autofill_switches.h"
#import "components/autofill/ios/browser/autofill_util.h"
#import "ios/web/public/web_state/js/crw_js_injection_receiver.h"
#include "ios/web/public/web_state/web_frame.h"
#include "ios/web/public/web_state/web_frames_manager.h"
#if !defined(__has_feature) || !__has_feature(objc_arc)
#error "This file requires ARC support."
#endif
@implementation JsSuggestionManager {
// The injection receiver used to evaluate JavaScript.
CRWJSInjectionReceiver* _receiver;
web::WebFramesManager* _webFramesManager;
}
- (instancetype)initWithReceiver:(CRWJSInjectionReceiver*)receiver {
DCHECK(receiver);
self = [super init];
if (self) {
_receiver = receiver;
}
return self;
}
- (void)setWebFramesManager:(web::WebFramesManager*)framesManager {
_webFramesManager = framesManager;
}
#pragma mark -
#pragma mark ProtectedMethods
- (void)selectNextElementInFrameWithID:(NSString*)frameID {
[self selectNextElementInFrameWithID:frameID afterForm:@"" field:@""];
}
- (void)selectNextElementInFrameWithID:(NSString*)frameID
afterForm:(NSString*)formName
field:(NSString*)fieldName {
std::vector<base::Value> parameters;
parameters.push_back(base::Value(base::SysNSStringToUTF8(formName)));
parameters.push_back(base::Value(base::SysNSStringToUTF8(fieldName)));
autofill::ExecuteJavaScriptFunction(
"suggestion.selectNextElement", parameters,
[self frameWithFrameID:frameID], _receiver,
base::OnceCallback<void(NSString*)>());
}
- (void)selectPreviousElementInFrameWithID:(NSString*)frameID {
[self selectPreviousElementInFrameWithID:frameID beforeForm:@"" field:@""];
}
- (void)selectPreviousElementInFrameWithID:(NSString*)frameID
beforeForm:(NSString*)formName
field:(NSString*)fieldName {
std::vector<base::Value> parameters;
parameters.push_back(base::Value(base::SysNSStringToUTF8(formName)));
parameters.push_back(base::Value(base::SysNSStringToUTF8(fieldName)));
autofill::ExecuteJavaScriptFunction(
"suggestion.selectPreviousElement", parameters,
[self frameWithFrameID:frameID], _receiver,
base::OnceCallback<void(NSString*)>());
}
- (void)fetchPreviousAndNextElementsPresenceInFrameWithID:(NSString*)frameID
completionHandler:
(void (^)(BOOL,
BOOL))completionHandler {
[self fetchPreviousAndNextElementsPresenceInFrameWithID:frameID
forForm:@""
field:@""
completionHandler:completionHandler];
}
- (void)fetchPreviousAndNextElementsPresenceInFrameWithID:(NSString*)frameID
forForm:(NSString*)formName
field:(NSString*)fieldName
completionHandler:
(void (^)(BOOL,
BOOL))completionHandler {
DCHECK(completionHandler);
std::vector<base::Value> parameters;
parameters.push_back(base::Value(base::SysNSStringToUTF8(formName)));
parameters.push_back(base::Value(base::SysNSStringToUTF8(fieldName)));
autofill::ExecuteJavaScriptFunction(
"suggestion.hasPreviousNextElements", parameters,
[self frameWithFrameID:frameID], _receiver,
base::BindOnce(^(NSString* result) {
// The result maybe an empty string here due to 2 reasons:
// 1) When there is an exception running the JS
// 2) There is a race when the page is changing due to which
// JSSuggestionManager has not yet injected __gCrWeb.suggestion
// object Handle this case gracefully. If a page has overridden
// Array.toString, the string returned may not contain a ",",
// hence this is a defensive measure to early return.
NSArray* components = [result componentsSeparatedByString:@","];
if (components.count != 2) {
completionHandler(NO, NO);
return;
}
DCHECK([components[0] isEqualToString:@"true"] ||
[components[0] isEqualToString:@"false"]);
BOOL hasPreviousElement = [components[0] isEqualToString:@"true"];
DCHECK([components[1] isEqualToString:@"true"] ||
[components[1] isEqualToString:@"false"]);
BOOL hasNextElement = [components[1] isEqualToString:@"true"];
completionHandler(hasPreviousElement, hasNextElement);
}));
}
- (void)closeKeyboardForFrameWithID:(NSString*)frameID {
std::vector<base::Value> parameters;
autofill::ExecuteJavaScriptFunction(
"suggestion.blurActiveElement", parameters,
[self frameWithFrameID:frameID], _receiver,
base::OnceCallback<void(NSString*)>());
}
- (web::WebFrame*)frameWithFrameID:(NSString*)frameID {
if (autofill::switches::IsAutofillIFrameMessagingEnabled()) {
DCHECK(_webFramesManager);
return _webFramesManager->GetFrameWithId(base::SysNSStringToUTF8(frameID));
}
return nil;
}
@end
|
