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
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
|
/*
* Copyright 2009, 2010, The Android Open Source Project
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef PlatformBridge_h
#define PlatformBridge_h
#include "FloatRect.h"
#include "KURL.h"
#include "PlatformString.h"
#include "npapi.h"
#include <wtf/Vector.h>
// V8 bindings use the ARRAYSIZE_UNSAFE macro. This macro was copied
// from http://src.chromium.org/viewvc/chrome/trunk/src/base/basictypes.h
//
// ARRAYSIZE_UNSAFE performs essentially the same calculation as arraysize,
// but can be used on anonymous types or types defined inside
// functions. It's less safe than arraysize as it accepts some
// (although not all) pointers. Therefore, you should use arraysize
// whenever possible.
//
// The expression ARRAYSIZE_UNSAFE(a) is a compile-time constant of type
// size_t.
//
// ARRAYSIZE_UNSAFE catches a few type errors. If you see a compiler error
//
// "warning: division by zero in ..."
//
// when using ARRAYSIZE_UNSAFE, you are (wrongfully) giving it a pointer.
// You should only use ARRAYSIZE_UNSAFE on statically allocated arrays.
//
// The following comments are on the implementation details, and can
// be ignored by the users.
//
// ARRAYSIZE_UNSAFE(arr) works by inspecting sizeof(arr) (the # of bytes in
// the array) and sizeof(*(arr)) (the # of bytes in one array
// element). If the former is divisible by the latter, perhaps arr is
// indeed an array, in which case the division result is the # of
// elements in the array. Otherwise, arr cannot possibly be an array,
// and we generate a compiler error to prevent the code from
// compiling.
//
// Since the size of bool is implementation-defined, we need to cast
// !(sizeof(a) & sizeof(*(a))) to size_t in order to ensure the final
// result has type size_t.
//
// This macro is not perfect as it wrongfully accepts certain
// pointers, namely where the pointer size is divisible by the pointee
// size. Since all our code has to go through a 32-bit compiler,
// where a pointer is 4 bytes, this means all pointers to a type whose
// size is 3 or greater than 4 will be (righteously) rejected.
#define ARRAYSIZE_UNSAFE(a) \
((sizeof(a) / sizeof(*(a))) / \
static_cast<size_t>(!(sizeof(a) % sizeof(*(a)))))
class NPObject;
namespace WebCore {
class Document;
class FrameView;
class Node;
class ScrollView;
class Widget;
// An interface to the embedding layer, which has the ability to answer
// questions about the system and so on...
// This is very similar to ChromiumBridge and the two are likely to converge
// in the future.
//
// The methods in this class all need to reach across a JNI layer to the Java VM
// where the embedder runs. The JNI machinery is currently all in WebKit/android
// but the long term plan is to move to the WebKit API and share the bridge and its
// implementation with Chromium. The JNI machinery will then move outside of WebKit,
// similarly to how Chromium's IPC layer lives outside of WebKit.
class PlatformBridge {
public:
// KeyGenerator
static WTF::Vector<String> getSupportedKeyStrengthList();
static String getSignedPublicKeyAndChallengeString(unsigned index, const String& challenge, const KURL&);
// Cookies
static void setCookies(const Document*, const KURL&, const String& value);
static String cookies(const Document*, const KURL&);
static bool cookiesEnabled(const Document*);
// Plugin
static NPObject* pluginScriptableObject(Widget*);
// Popups
static bool popupsAllowed(NPP);
// These ids need to be in sync with the constants in BrowserFrame.java
enum rawResId {
NoDomain = 1,
LoadError,
DrawableDir,
FileUploadLabel,
ResetLabel,
SubmitLabel,
FileUploadNoFileChosenLabel
};
static String* globalLocalizedName(rawResId resId);
// Whether the WebView is paused.
// ANDROID
// TODO: Upstream to webkit.org. See https://bugs.webkit.org/show_bug.cgi?id=34082
static bool isWebViewPaused(const FrameView*);
static String resolveFilePathForContentUri(const String&);
static int screenDepth();
static FloatRect screenRect();
// Update the viewport meta data.
static void updateViewport(FrameView*);
static void updateTextfield(FrameView*, Node*, bool changeToPassword, const WTF::String& text);
static void setScrollPosition(ScrollView*, int x, int y);
// Language
static String computeDefaultLanguage();
// Memory details for V8 GC
static int lowMemoryUsageMB();
static int highMemoryUsageMB();
static int highUsageDeltaMB();
static int memoryUsageMB();
static int actualMemoryUsageMB();
static int screenWidthInDocCoord(const FrameView*);
static int screenHeightInDocCoord(const FrameView*);
};
}
#endif // PlatformBridge_h
|
