1/*
2 * Copyright (C) 2006, 2007, 2009, 2011 Apple Inc. All rights reserved.
3 * Copyright (C) 2008, 2010 Nokia Corporation and/or its subsidiary(-ies)
4 * Copyright (C) 2012, Samsung Electronics. All rights reserved.
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14 * Library General Public License for more details.
15 *
16 * You should have received a copy of the GNU Library General Public License
17 * along with this library; see the file COPYING.LIB.  If not, write to
18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 * Boston, MA 02110-1301, USA.
20 */
21
22#include "config.h"
23#include "core/page/Chrome.h"
24
25#include "core/HTMLNames.h"
26#include "core/dom/Document.h"
27#include "core/frame/LocalFrame.h"
28#include "core/html/HTMLInputElement.h"
29#include "core/html/forms/ColorChooser.h"
30#include "core/html/forms/DateTimeChooser.h"
31#include "core/inspector/InspectorInstrumentation.h"
32#include "core/page/ChromeClient.h"
33#include "core/page/FrameTree.h"
34#include "core/page/Page.h"
35#include "core/page/PopupOpeningObserver.h"
36#include "core/page/ScopedPageLoadDeferrer.h"
37#include "core/page/WindowFeatures.h"
38#include "core/rendering/HitTestResult.h"
39#include "platform/FileChooser.h"
40#include "platform/Logging.h"
41#include "platform/geometry/FloatRect.h"
42#include "platform/network/DNS.h"
43#include "public/platform/WebScreenInfo.h"
44#include "wtf/PassRefPtr.h"
45#include "wtf/Vector.h"
46
47namespace blink {
48
49using namespace HTMLNames;
50
51Chrome::Chrome(Page* page, ChromeClient* client)
52    : m_page(page)
53    , m_client(client)
54{
55    ASSERT(m_client);
56}
57
58Chrome::~Chrome()
59{
60}
61
62PassOwnPtr<Chrome> Chrome::create(Page* page, ChromeClient* client)
63{
64    return adoptPtr(new Chrome(page, client));
65}
66
67void Chrome::invalidateContentsAndRootView(const IntRect& updateRect)
68{
69    m_client->invalidateContentsAndRootView(updateRect);
70}
71
72void Chrome::invalidateContentsForSlowScroll(const IntRect& updateRect)
73{
74    m_client->invalidateContentsForSlowScroll(updateRect);
75}
76
77IntRect Chrome::rootViewToScreen(const IntRect& rect) const
78{
79    return m_client->rootViewToScreen(rect);
80}
81
82blink::WebScreenInfo Chrome::screenInfo() const
83{
84    return m_client->screenInfo();
85}
86
87void Chrome::contentsSizeChanged(LocalFrame* frame, const IntSize& size) const
88{
89    m_client->contentsSizeChanged(frame, size);
90}
91
92void Chrome::setWindowRect(const FloatRect& rect) const
93{
94    m_client->setWindowRect(rect);
95}
96
97FloatRect Chrome::windowRect() const
98{
99    return m_client->windowRect();
100}
101
102FloatRect Chrome::pageRect() const
103{
104    return m_client->pageRect();
105}
106
107void Chrome::focus() const
108{
109    m_client->focus();
110}
111
112bool Chrome::canTakeFocus(FocusType type) const
113{
114    return m_client->canTakeFocus(type);
115}
116
117void Chrome::takeFocus(FocusType type) const
118{
119    m_client->takeFocus(type);
120}
121
122void Chrome::focusedNodeChanged(Node* node) const
123{
124    m_client->focusedNodeChanged(node);
125}
126
127void Chrome::show(NavigationPolicy policy) const
128{
129    m_client->show(policy);
130}
131
132bool Chrome::canRunModal() const
133{
134    return m_client->canRunModal();
135}
136
137static bool canRunModalIfDuringPageDismissal(Page* page, ChromeClient::DialogType dialog, const String& message)
138{
139    for (Frame* frame = page->mainFrame(); frame; frame = frame->tree().traverseNext()) {
140        if (!frame->isLocalFrame())
141            continue;
142        Document::PageDismissalType dismissal = toLocalFrame(frame)->document()->pageDismissalEventBeingDispatched();
143        if (dismissal != Document::NoDismissal)
144            return page->chrome().client().shouldRunModalDialogDuringPageDismissal(dialog, message, dismissal);
145    }
146    return true;
147}
148
149bool Chrome::canRunModalNow() const
150{
151    return canRunModal() && canRunModalIfDuringPageDismissal(m_page, ChromeClient::HTMLDialog, String());
152}
153
154void Chrome::runModal() const
155{
156    // Defer callbacks in all the other pages, so we don't try to run JavaScript
157    // in a way that could interact with this view.
158    ScopedPageLoadDeferrer deferrer(m_page);
159
160    TimerBase::fireTimersInNestedEventLoop();
161    m_client->runModal();
162}
163
164void Chrome::setWindowFeatures(const WindowFeatures& features) const
165{
166    m_client->setToolbarsVisible(features.toolBarVisible || features.locationBarVisible);
167    m_client->setStatusbarVisible(features.statusBarVisible);
168    m_client->setScrollbarsVisible(features.scrollbarsVisible);
169    m_client->setMenubarVisible(features.menuBarVisible);
170    m_client->setResizable(features.resizable);
171}
172
173bool Chrome::toolbarsVisible() const
174{
175    return m_client->toolbarsVisible();
176}
177
178bool Chrome::statusbarVisible() const
179{
180    return m_client->statusbarVisible();
181}
182
183bool Chrome::scrollbarsVisible() const
184{
185    return m_client->scrollbarsVisible();
186}
187
188bool Chrome::menubarVisible() const
189{
190    return m_client->menubarVisible();
191}
192
193bool Chrome::canRunBeforeUnloadConfirmPanel()
194{
195    return m_client->canRunBeforeUnloadConfirmPanel();
196}
197
198bool Chrome::runBeforeUnloadConfirmPanel(const String& message, LocalFrame* frame)
199{
200    // Defer loads in case the client method runs a new event loop that would
201    // otherwise cause the load to continue while we're in the middle of executing JavaScript.
202    ScopedPageLoadDeferrer deferrer;
203
204    InspectorInstrumentationCookie cookie = InspectorInstrumentation::willRunJavaScriptDialog(m_page, message);
205    bool ok = m_client->runBeforeUnloadConfirmPanel(message, frame);
206    InspectorInstrumentation::didRunJavaScriptDialog(cookie);
207    return ok;
208}
209
210void Chrome::closeWindowSoon()
211{
212    m_client->closeWindowSoon();
213}
214
215void Chrome::runJavaScriptAlert(LocalFrame* frame, const String& message)
216{
217    if (!canRunModalIfDuringPageDismissal(m_page, ChromeClient::AlertDialog, message))
218        return;
219
220    // Defer loads in case the client method runs a new event loop that would
221    // otherwise cause the load to continue while we're in the middle of executing JavaScript.
222    ScopedPageLoadDeferrer deferrer;
223
224    ASSERT(frame);
225    notifyPopupOpeningObservers();
226
227    InspectorInstrumentationCookie cookie = InspectorInstrumentation::willRunJavaScriptDialog(m_page, message);
228    m_client->runJavaScriptAlert(frame, message);
229    InspectorInstrumentation::didRunJavaScriptDialog(cookie);
230}
231
232bool Chrome::runJavaScriptConfirm(LocalFrame* frame, const String& message)
233{
234    if (!canRunModalIfDuringPageDismissal(m_page, ChromeClient::ConfirmDialog, message))
235        return false;
236
237    // Defer loads in case the client method runs a new event loop that would
238    // otherwise cause the load to continue while we're in the middle of executing JavaScript.
239    ScopedPageLoadDeferrer deferrer;
240
241    ASSERT(frame);
242    notifyPopupOpeningObservers();
243
244    InspectorInstrumentationCookie cookie = InspectorInstrumentation::willRunJavaScriptDialog(m_page, message);
245    bool ok = m_client->runJavaScriptConfirm(frame, message);
246    InspectorInstrumentation::didRunJavaScriptDialog(cookie);
247    return ok;
248}
249
250bool Chrome::runJavaScriptPrompt(LocalFrame* frame, const String& prompt, const String& defaultValue, String& result)
251{
252    if (!canRunModalIfDuringPageDismissal(m_page, ChromeClient::PromptDialog, prompt))
253        return false;
254
255    // Defer loads in case the client method runs a new event loop that would
256    // otherwise cause the load to continue while we're in the middle of executing JavaScript.
257    ScopedPageLoadDeferrer deferrer;
258
259    ASSERT(frame);
260    notifyPopupOpeningObservers();
261
262    InspectorInstrumentationCookie cookie = InspectorInstrumentation::willRunJavaScriptDialog(m_page, prompt);
263    bool ok = m_client->runJavaScriptPrompt(frame, prompt, defaultValue, result);
264    InspectorInstrumentation::didRunJavaScriptDialog(cookie);
265
266    return ok;
267}
268
269void Chrome::setStatusbarText(LocalFrame* frame, const String& status)
270{
271    ASSERT(frame);
272    m_client->setStatusbarText(status);
273}
274
275IntRect Chrome::windowResizerRect() const
276{
277    return m_client->windowResizerRect();
278}
279
280void Chrome::mouseDidMoveOverElement(const HitTestResult& result, unsigned modifierFlags)
281{
282    if (result.innerNode()) {
283        if (result.innerNode()->document().isDNSPrefetchEnabled())
284            prefetchDNS(result.absoluteLinkURL().host());
285    }
286    m_client->mouseDidMoveOverElement(result, modifierFlags);
287}
288
289void Chrome::setToolTip(const HitTestResult& result)
290{
291    // First priority is a potential toolTip representing a spelling or grammar error
292    TextDirection toolTipDirection;
293    String toolTip = result.spellingToolTip(toolTipDirection);
294
295    // Next we'll consider a tooltip for element with "title" attribute
296    if (toolTip.isEmpty())
297        toolTip = result.title(toolTipDirection);
298
299    // Lastly, for <input type="file"> that allow multiple files, we'll consider a tooltip for the selected filenames
300    if (toolTip.isEmpty()) {
301        if (Node* node = result.innerNonSharedNode()) {
302            if (isHTMLInputElement(*node)) {
303                HTMLInputElement* input = toHTMLInputElement(node);
304                toolTip = input->defaultToolTip();
305
306                // FIXME: We should obtain text direction of tooltip from
307                // ChromeClient or platform. As of October 2011, all client
308                // implementations don't use text direction information for
309                // ChromeClient::setToolTip. We'll work on tooltip text
310                // direction during bidi cleanup in form inputs.
311                toolTipDirection = LTR;
312            }
313        }
314    }
315
316    m_client->setToolTip(toolTip, toolTipDirection);
317}
318
319void Chrome::print(LocalFrame* frame)
320{
321    // Defer loads in case the client method runs a new event loop that would
322    // otherwise cause the load to continue while we're in the middle of executing JavaScript.
323    ScopedPageLoadDeferrer deferrer;
324
325    m_client->print(frame);
326}
327
328void Chrome::enumerateChosenDirectory(FileChooser* fileChooser)
329{
330    m_client->enumerateChosenDirectory(fileChooser);
331}
332
333PassOwnPtr<ColorChooser> Chrome::createColorChooser(LocalFrame* frame, ColorChooserClient* client, const Color& initialColor)
334{
335    notifyPopupOpeningObservers();
336    return m_client->createColorChooser(frame, client, initialColor);
337}
338
339PassRefPtr<DateTimeChooser> Chrome::openDateTimeChooser(DateTimeChooserClient* client, const DateTimeChooserParameters& parameters)
340{
341    notifyPopupOpeningObservers();
342    return m_client->openDateTimeChooser(client, parameters);
343}
344
345void Chrome::openTextDataListChooser(HTMLInputElement& input)
346{
347    notifyPopupOpeningObservers();
348    m_client->openTextDataListChooser(input);
349}
350
351void Chrome::runOpenPanel(LocalFrame* frame, PassRefPtr<FileChooser> fileChooser)
352{
353    notifyPopupOpeningObservers();
354    m_client->runOpenPanel(frame, fileChooser);
355}
356
357void Chrome::dispatchViewportPropertiesDidChange(const ViewportDescription& description) const
358{
359    m_client->dispatchViewportPropertiesDidChange(description);
360}
361
362void Chrome::setCursor(const Cursor& cursor)
363{
364    m_client->setCursor(cursor);
365}
366
367void Chrome::scheduleAnimation()
368{
369    m_page->animator().setAnimationFramePending();
370    m_client->scheduleAnimation();
371}
372
373// --------
374
375bool Chrome::hasOpenedPopup() const
376{
377    return m_client->hasOpenedPopup();
378}
379
380PassRefPtrWillBeRawPtr<PopupMenu> Chrome::createPopupMenu(LocalFrame& frame, PopupMenuClient* client) const
381{
382    notifyPopupOpeningObservers();
383    return m_client->createPopupMenu(frame, client);
384}
385
386void Chrome::registerPopupOpeningObserver(PopupOpeningObserver* observer)
387{
388    ASSERT(observer);
389    m_popupOpeningObservers.append(observer);
390}
391
392void Chrome::unregisterPopupOpeningObserver(PopupOpeningObserver* observer)
393{
394    size_t index = m_popupOpeningObservers.find(observer);
395    ASSERT(index != kNotFound);
396    m_popupOpeningObservers.remove(index);
397}
398
399void Chrome::notifyPopupOpeningObservers() const
400{
401    const Vector<PopupOpeningObserver*> observers(m_popupOpeningObservers);
402    for (size_t i = 0; i < observers.size(); ++i)
403        observers[i]->willOpenPopup();
404}
405
406void Chrome::willBeDestroyed()
407{
408    m_client->chromeDestroyed();
409}
410
411} // namespace blink
412