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1 /*
2  * Copyright (C) 2009 Google Inc. All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions are
6  * met:
7  *
8  *     * Redistributions of source code must retain the above copyright
9  * notice, this list of conditions and the following disclaimer.
10  *     * Redistributions in binary form must reproduce the above
11  * copyright notice, this list of conditions and the following disclaimer
12  * in the documentation and/or other materials provided with the
13  * distribution.
14  *     * Neither the name of Google Inc. nor the names of its
15  * contributors may be used to endorse or promote products derived from
16  * this software without specific prior written permission.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29  */
30 
31 #ifndef WebDocument_h
32 #define WebDocument_h
33 
34 #include "../platform/WebReferrerPolicy.h"
35 #include "../platform/WebVector.h"
36 #include "WebDraggableRegion.h"
37 #include "WebExceptionCode.h"
38 #include "WebFrame.h"
39 #include "WebNode.h"
40 #include "WebSecurityOrigin.h"
41 
42 #if BLINK_IMPLEMENTATION
43 namespace WTF { template <typename T> class PassRefPtr; }
44 #endif
45 
46 namespace v8 {
47 class Value;
48 template <class T> class Handle;
49 }
50 
51 namespace blink {
52 
53 class Document;
54 class DocumentType;
55 class WebAXObject;
56 class WebDocumentType;
57 class WebElement;
58 class WebFormElement;
59 class WebElementCollection;
60 class WebNodeList;
61 class WebString;
62 class WebURL;
63 
64 // Provides readonly access to some properties of a DOM document.
65 class WebDocument : public WebNode {
66 public:
WebDocument()67     WebDocument() { }
WebDocument(const WebDocument & e)68     WebDocument(const WebDocument& e) : WebNode(e) { }
69 
70     WebDocument& operator=(const WebDocument& e)
71     {
72         WebNode::assign(e);
73         return *this;
74     }
assign(const WebDocument & e)75     void assign(const WebDocument& e) { WebNode::assign(e); }
76 
77     BLINK_EXPORT WebURL url() const;
78     // Note: Security checks should use the securityOrigin(), not url().
79     BLINK_EXPORT WebSecurityOrigin securityOrigin() const;
80 
81     BLINK_EXPORT WebString encoding() const;
82     BLINK_EXPORT WebString contentLanguage() const;
83     BLINK_EXPORT WebString referrer() const;
84     BLINK_EXPORT WebColor themeColor() const;
85     // The url of the OpenSearch Desription Document (if any).
86     BLINK_EXPORT WebURL openSearchDescriptionURL() const;
87 
88     // Returns the frame the document belongs to or 0 if the document is frameless.
89     BLINK_EXPORT WebLocalFrame* frame() const;
90     BLINK_EXPORT bool isHTMLDocument() const;
91     BLINK_EXPORT bool isXHTMLDocument() const;
92     BLINK_EXPORT bool isPluginDocument() const;
93     BLINK_EXPORT WebURL baseURL() const;
94 
95     // The firstPartyForCookies is used to compute whether this document
96     // appears in a "third-party" context for the purpose of third-party
97     // cookie blocking.
98     BLINK_EXPORT WebURL firstPartyForCookies() const;
99 
100     BLINK_EXPORT WebElement documentElement() const;
101     BLINK_EXPORT WebElement body() const;
102     BLINK_EXPORT WebElement head();
103     BLINK_EXPORT WebString title() const;
104     BLINK_EXPORT WebElementCollection all();
105     BLINK_EXPORT void forms(WebVector<WebFormElement>&) const;
106     BLINK_EXPORT void images(WebVector<WebElement>&);
107     BLINK_EXPORT WebURL completeURL(const WebString&) const;
108     BLINK_EXPORT WebElement getElementById(const WebString&) const;
109     BLINK_EXPORT WebElement focusedElement() const;
110     BLINK_EXPORT WebDocumentType doctype() const;
111     BLINK_EXPORT void cancelFullScreen();
112     BLINK_EXPORT WebElement fullScreenElement() const;
113     BLINK_EXPORT WebDOMEvent createEvent(const WebString& eventType);
114     BLINK_EXPORT WebReferrerPolicy referrerPolicy() const;
115     BLINK_EXPORT WebElement createElement(const WebString& tagName);
116     // Shorthand of frame()->scrollOffset().
117     BLINK_EXPORT WebSize scrollOffset() const;
118     // Shorthand of frame()->minimumScrollOffset().
119     BLINK_EXPORT WebSize minimumScrollOffset() const;
120     // Shorthand of frame()->maximumScrollOffset().
121     BLINK_EXPORT WebSize maximumScrollOffset() const;
122     BLINK_EXPORT void setIsTransitionDocument();
123     BLINK_EXPORT void beginExitTransition(const WebString& cssSelector);
124 
125     // Accessibility support. These methods should only be called on the
126     // top-level document, because one accessibility cache spans all of
127     // the documents on the page.
128 
129     // Gets the accessibility object for this document.
130     BLINK_EXPORT WebAXObject accessibilityObject() const;
131 
132     // Gets the accessibility object for an object on this page by ID.
133     BLINK_EXPORT WebAXObject accessibilityObjectFromID(int axID) const;
134     // Inserts the given CSS source code as a stylesheet in the document.
135     BLINK_EXPORT void insertStyleSheet(const WebString& sourceCode);
136 
137     // Arranges to call WebFrameClient::didMatchCSS(frame(), ...) when one of
138     // the selectors matches or stops matching an element in this document.
139     // Each call to this method overrides any previous calls.
140     BLINK_EXPORT void watchCSSSelectors(const WebVector<WebString>& selectors);
141 
142     BLINK_EXPORT WebVector<WebDraggableRegion> draggableRegions() const;
143 
144     BLINK_EXPORT v8::Handle<v8::Value> registerEmbedderCustomElement(const WebString& name, v8::Handle<v8::Value> options, WebExceptionCode&);
145 
146     BLINK_EXPORT WebURL manifestURL() const;
147 
148 #if BLINK_IMPLEMENTATION
149     WebDocument(const PassRefPtrWillBeRawPtr<Document>&);
150     WebDocument& operator=(const PassRefPtrWillBeRawPtr<Document>&);
151     operator PassRefPtrWillBeRawPtr<Document>() const;
152 #endif
153 };
154 
155 } // namespace blink
156 
157 #endif
158