|
1 /** |
|
2 * This file is part of the DOM implementation for KDE. |
|
3 * |
|
4 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
|
5 * (C) 1999 Antti Koivisto (koivisto@kde.org) |
|
6 * (C) 2000 Simon Hausmann (hausmann@kde.org) |
|
7 * (C) 2001 Dirk Mueller (mueller@kde.org) |
|
8 * Copyright (C) 2004, 2006 Apple Computer, Inc. |
|
9 * |
|
10 * This library is free software; you can redistribute it and/or |
|
11 * modify it under the terms of the GNU Library General Public |
|
12 * License as published by the Free Software Foundation; either |
|
13 * version 2 of the License, or (at your option) any later version. |
|
14 * |
|
15 * This library is distributed in the hope that it will be useful, |
|
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
|
18 * Library General Public License for more details. |
|
19 * |
|
20 * You should have received a copy of the GNU Library General Public License |
|
21 * along with this library; see the file COPYING.LIB. If not, write to |
|
22 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
|
23 * Boston, MA 02110-1301, USA. |
|
24 */ |
|
25 #include "config.h" |
|
26 #include "HTMLFrameElementBase.h" |
|
27 |
|
28 #include "CSSHelper.h" |
|
29 #include "Document.h" |
|
30 #include "EventNames.h" |
|
31 #include "FocusController.h" |
|
32 #include "Frame.h" |
|
33 #include "FrameLoader.h" |
|
34 #include "FrameTree.h" |
|
35 #include "FrameView.h" |
|
36 #include "HTMLFrameSetElement.h" |
|
37 #include "HTMLNames.h" |
|
38 #include "KURL.h" |
|
39 #include "Page.h" |
|
40 #include "RenderFrame.h" |
|
41 #include "Settings.h" |
|
42 |
|
43 namespace WebCore { |
|
44 |
|
45 using namespace EventNames; |
|
46 using namespace HTMLNames; |
|
47 |
|
48 HTMLFrameElementBase::HTMLFrameElementBase(const QualifiedName& tagName, Document *doc) |
|
49 : HTMLFrameOwnerElement(tagName, doc) |
|
50 , m_scrolling(ScrollbarAuto) |
|
51 , m_marginWidth(-1) |
|
52 , m_marginHeight(-1) |
|
53 , m_noResize(false) |
|
54 , m_viewSource(false) |
|
55 , m_shouldOpenURLAfterAttach(false) |
|
56 { |
|
57 } |
|
58 |
|
59 bool HTMLFrameElementBase::isURLAllowed(const AtomicString& URLString) const |
|
60 { |
|
61 if (URLString.isEmpty()) |
|
62 return true; |
|
63 |
|
64 KURL completeURL(document()->completeURL(URLString.deprecatedString())); |
|
65 completeURL.setRef(DeprecatedString::null); |
|
66 |
|
67 // Don't allow more than 200 total frames in a set. This seems |
|
68 // like a reasonable upper bound, and otherwise mutually recursive |
|
69 // frameset pages can quickly bring the program to its knees with |
|
70 // exponential growth in the number of frames. |
|
71 |
|
72 // FIXME: This limit could be higher, but WebKit has some |
|
73 // algorithms that happen while loading which appear to be N^2 or |
|
74 // worse in the number of frames |
|
75 if (Frame* parentFrame = document()->frame()) |
|
76 if (parentFrame->page()->frameCount() > 200) |
|
77 return false; |
|
78 |
|
79 // We allow one level of self-reference because some sites depend on that. |
|
80 // But we don't allow more than one. |
|
81 bool foundSelfReference = false; |
|
82 for (Frame* frame = document()->frame(); frame; frame = frame->tree()->parent()) { |
|
83 KURL frameURL = frame->loader()->url(); |
|
84 frameURL.setRef(DeprecatedString::null); |
|
85 if (frameURL == completeURL) { |
|
86 if (foundSelfReference) |
|
87 return false; |
|
88 foundSelfReference = true; |
|
89 } |
|
90 } |
|
91 |
|
92 return true; |
|
93 } |
|
94 |
|
95 void HTMLFrameElementBase::openURL() |
|
96 { |
|
97 ASSERT(!m_name.isEmpty()); |
|
98 |
|
99 if (!isURLAllowed(m_URL)) |
|
100 return; |
|
101 |
|
102 if (m_URL.isEmpty()) |
|
103 m_URL = "about:blank"; |
|
104 |
|
105 Frame* parentFrame = document()->frame(); |
|
106 if (!parentFrame) |
|
107 return; |
|
108 |
|
109 parentFrame->loader()->requestFrame(this, m_URL, m_name); |
|
110 if (contentFrame()) |
|
111 contentFrame()->setInViewSourceMode(viewSourceMode()); |
|
112 } |
|
113 |
|
114 void HTMLFrameElementBase::parseMappedAttribute(MappedAttribute *attr) |
|
115 { |
|
116 if (attr->name() == srcAttr) |
|
117 setLocation(parseURL(attr->value())); |
|
118 else if (attr->name() == idAttr) { |
|
119 // Important to call through to base for the id attribute so the hasID bit gets set. |
|
120 HTMLFrameOwnerElement::parseMappedAttribute(attr); |
|
121 m_name = attr->value(); |
|
122 } else if (attr->name() == nameAttr) { |
|
123 m_name = attr->value(); |
|
124 // FIXME: If we are already attached, this doesn't actually change the frame's name. |
|
125 // FIXME: If we are already attached, this doesn't check for frame name |
|
126 // conflicts and generate a unique frame name. |
|
127 } else if (attr->name() == marginwidthAttr) { |
|
128 m_marginWidth = attr->value().toInt(); |
|
129 // FIXME: If we are already attached, this has no effect. |
|
130 } else if (attr->name() == marginheightAttr) { |
|
131 m_marginHeight = attr->value().toInt(); |
|
132 // FIXME: If we are already attached, this has no effect. |
|
133 } else if (attr->name() == noresizeAttr) { |
|
134 m_noResize = true; |
|
135 // FIXME: If we are already attached, this has no effect. |
|
136 } else if (attr->name() == scrollingAttr) { |
|
137 // Auto and yes both simply mean "allow scrolling." No means "don't allow scrolling." |
|
138 if (equalIgnoringCase(attr->value(), "auto") || equalIgnoringCase(attr->value(), "yes")) |
|
139 m_scrolling = ScrollbarAuto; |
|
140 else if (equalIgnoringCase(attr->value(), "no")) |
|
141 m_scrolling = ScrollbarAlwaysOff; |
|
142 // FIXME: If we are already attached, this has no effect. |
|
143 } else if (attr->name() == viewsourceAttr) { |
|
144 m_viewSource = !attr->isNull(); |
|
145 if (contentFrame()) |
|
146 contentFrame()->setInViewSourceMode(viewSourceMode()); |
|
147 } else if (attr->name() == onloadAttr) { |
|
148 setHTMLEventListener(loadEvent, attr); |
|
149 } else if (attr->name() == onbeforeunloadAttr) { |
|
150 // FIXME: should <frame> elements have beforeunload handlers? |
|
151 setHTMLEventListener(beforeunloadEvent, attr); |
|
152 } else if (attr->name() == onunloadAttr) { |
|
153 setHTMLEventListener(unloadEvent, attr); |
|
154 } else |
|
155 HTMLFrameOwnerElement::parseMappedAttribute(attr); |
|
156 } |
|
157 |
|
158 void HTMLFrameElementBase::setNameAndOpenURL() |
|
159 { |
|
160 m_name = getAttribute(nameAttr); |
|
161 if (m_name.isNull()) |
|
162 m_name = getAttribute(idAttr); |
|
163 |
|
164 if (Frame* parentFrame = document()->frame()) |
|
165 m_name = parentFrame->tree()->uniqueChildName(m_name); |
|
166 |
|
167 openURL(); |
|
168 } |
|
169 |
|
170 void HTMLFrameElementBase::setNameAndOpenURLCallback(Node* n) |
|
171 { |
|
172 static_cast<HTMLFrameElementBase*>(n)->setNameAndOpenURL(); |
|
173 } |
|
174 |
|
175 void HTMLFrameElementBase::insertedIntoDocument() |
|
176 { |
|
177 HTMLFrameOwnerElement::insertedIntoDocument(); |
|
178 |
|
179 // We delay frame loading until after the render tree is fully constructed. |
|
180 // Othewise, a synchronous load that executed JavaScript would see incorrect |
|
181 // (0) values for the frame's renderer-dependent properties, like width. |
|
182 m_shouldOpenURLAfterAttach = true; |
|
183 } |
|
184 |
|
185 void HTMLFrameElementBase::removedFromDocument() |
|
186 { |
|
187 m_shouldOpenURLAfterAttach = false; |
|
188 |
|
189 HTMLFrameOwnerElement::removedFromDocument(); |
|
190 } |
|
191 |
|
192 void HTMLFrameElementBase::attach() |
|
193 { |
|
194 if (m_shouldOpenURLAfterAttach) { |
|
195 m_shouldOpenURLAfterAttach = false; |
|
196 queuePostAttachCallback(&HTMLFrameElementBase::setNameAndOpenURLCallback, this); |
|
197 } |
|
198 |
|
199 HTMLFrameOwnerElement::attach(); |
|
200 |
|
201 if (RenderPart* renderPart = static_cast<RenderPart*>(renderer())) |
|
202 if (Frame* frame = contentFrame()) |
|
203 renderPart->setWidget(frame->view()); |
|
204 } |
|
205 |
|
206 void HTMLFrameElementBase::willRemove() |
|
207 { |
|
208 if (Frame* frame = contentFrame()) { |
|
209 frame->disconnectOwnerElement(); |
|
210 frame->loader()->frameDetached(); |
|
211 } |
|
212 |
|
213 HTMLFrameOwnerElement::willRemove(); |
|
214 } |
|
215 |
|
216 String HTMLFrameElementBase::location() const |
|
217 { |
|
218 return src(); |
|
219 } |
|
220 |
|
221 void HTMLFrameElementBase::setLocation(const String& str) |
|
222 { |
|
223 Settings* settings = document()->settings(); |
|
224 if (settings && settings->needsAcrobatFrameReloadingQuirk() && m_URL == str) |
|
225 return; |
|
226 |
|
227 m_URL = AtomicString(str); |
|
228 |
|
229 if (inDocument()) |
|
230 openURL(); |
|
231 } |
|
232 |
|
233 bool HTMLFrameElementBase::isFocusable() const |
|
234 { |
|
235 return renderer(); |
|
236 } |
|
237 |
|
238 void HTMLFrameElementBase::setFocus(bool received) |
|
239 { |
|
240 HTMLFrameOwnerElement::setFocus(received); |
|
241 if (Page* page = document()->page()) |
|
242 page->focusController()->setFocusedFrame(received ? contentFrame() : 0); |
|
243 } |
|
244 |
|
245 bool HTMLFrameElementBase::isURLAttribute(Attribute *attr) const |
|
246 { |
|
247 return attr->name() == srcAttr; |
|
248 } |
|
249 |
|
250 String HTMLFrameElementBase::frameBorder() const |
|
251 { |
|
252 return getAttribute(frameborderAttr); |
|
253 } |
|
254 |
|
255 void HTMLFrameElementBase::setFrameBorder(const String &value) |
|
256 { |
|
257 setAttribute(frameborderAttr, value); |
|
258 } |
|
259 |
|
260 String HTMLFrameElementBase::longDesc() const |
|
261 { |
|
262 return getAttribute(longdescAttr); |
|
263 } |
|
264 |
|
265 void HTMLFrameElementBase::setLongDesc(const String &value) |
|
266 { |
|
267 setAttribute(longdescAttr, value); |
|
268 } |
|
269 |
|
270 String HTMLFrameElementBase::marginHeight() const |
|
271 { |
|
272 return getAttribute(marginheightAttr); |
|
273 } |
|
274 |
|
275 void HTMLFrameElementBase::setMarginHeight(const String &value) |
|
276 { |
|
277 setAttribute(marginheightAttr, value); |
|
278 } |
|
279 |
|
280 String HTMLFrameElementBase::marginWidth() const |
|
281 { |
|
282 return getAttribute(marginwidthAttr); |
|
283 } |
|
284 |
|
285 void HTMLFrameElementBase::setMarginWidth(const String &value) |
|
286 { |
|
287 setAttribute(marginwidthAttr, value); |
|
288 } |
|
289 |
|
290 String HTMLFrameElementBase::name() const |
|
291 { |
|
292 return getAttribute(nameAttr); |
|
293 } |
|
294 |
|
295 void HTMLFrameElementBase::setName(const String &value) |
|
296 { |
|
297 setAttribute(nameAttr, value); |
|
298 } |
|
299 |
|
300 void HTMLFrameElementBase::setNoResize(bool noResize) |
|
301 { |
|
302 setAttribute(noresizeAttr, noResize ? "" : 0); |
|
303 } |
|
304 |
|
305 String HTMLFrameElementBase::scrolling() const |
|
306 { |
|
307 return getAttribute(scrollingAttr); |
|
308 } |
|
309 |
|
310 void HTMLFrameElementBase::setScrolling(const String &value) |
|
311 { |
|
312 setAttribute(scrollingAttr, value); |
|
313 } |
|
314 |
|
315 String HTMLFrameElementBase::src() const |
|
316 { |
|
317 return document()->completeURL(getAttribute(srcAttr)); |
|
318 } |
|
319 |
|
320 void HTMLFrameElementBase::setSrc(const String &value) |
|
321 { |
|
322 setAttribute(srcAttr, value); |
|
323 } |
|
324 |
|
325 int HTMLFrameElementBase::width() const |
|
326 { |
|
327 if (!renderer()) |
|
328 return 0; |
|
329 |
|
330 document()->updateLayoutIgnorePendingStylesheets(); |
|
331 return renderer()->width(); |
|
332 } |
|
333 |
|
334 int HTMLFrameElementBase::height() const |
|
335 { |
|
336 if (!renderer()) |
|
337 return 0; |
|
338 |
|
339 document()->updateLayoutIgnorePendingStylesheets(); |
|
340 return renderer()->height(); |
|
341 } |
|
342 |
|
343 } // namespace WebCore |