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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "chrome/browser/prerender/prerender_tab_helper.h" | 5 #include "chrome/browser/prerender/prerender_tab_helper.h" |
6 | 6 |
7 #include "base/metrics/histogram.h" | 7 #include "base/metrics/histogram.h" |
8 #include "base/string_number_conversions.h" | 8 #include "base/string_number_conversions.h" |
9 #include "base/time.h" | 9 #include "base/time.h" |
10 #include "chrome/browser/prerender/prerender_manager.h" | 10 #include "chrome/browser/prerender/prerender_manager.h" |
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177 PrerenderTabHelper::~PrerenderTabHelper() { | 177 PrerenderTabHelper::~PrerenderTabHelper() { |
178 } | 178 } |
179 | 179 |
180 void PrerenderTabHelper::ProvisionalChangeToMainFrameUrl( | 180 void PrerenderTabHelper::ProvisionalChangeToMainFrameUrl( |
181 const GURL& url, | 181 const GURL& url, |
182 const GURL& opener_url) { | 182 const GURL& opener_url) { |
183 url_ = url; | 183 url_ = url; |
184 RecordPageviewEvent(PAGEVIEW_EVENT_NEW_URL); | 184 RecordPageviewEvent(PAGEVIEW_EVENT_NEW_URL); |
185 if (IsTopSite(url)) | 185 if (IsTopSite(url)) |
186 RecordPageviewEvent(PAGEVIEW_EVENT_TOP_SITE_NEW_URL); | 186 RecordPageviewEvent(PAGEVIEW_EVENT_TOP_SITE_NEW_URL); |
187 if (!tab_->core_tab_helper()->delegate()) | |
188 return; // PrerenderManager needs a delegate to handle the swap. | |
189 PrerenderManager* prerender_manager = MaybeGetPrerenderManager(); | 187 PrerenderManager* prerender_manager = MaybeGetPrerenderManager(); |
190 if (!prerender_manager) | 188 if (!prerender_manager) |
191 return; | 189 return; |
192 if (prerender_manager->IsWebContentsPrerendering(web_contents())) | 190 if (prerender_manager->IsWebContentsPrerendering(web_contents())) |
193 return; | 191 return; |
194 prerender_manager->MarkWebContentsAsNotPrerendered(web_contents()); | 192 prerender_manager->MarkWebContentsAsNotPrerendered(web_contents()); |
195 MaybeUsePrerenderedPage(url, opener_url); | |
196 } | 193 } |
197 | 194 |
198 void PrerenderTabHelper::UpdateTargetURL(int32 page_id, const GURL& url) { | 195 void PrerenderTabHelper::UpdateTargetURL(int32 page_id, const GURL& url) { |
199 for (int i = 0; i < kNumHoverThresholds; i++) | 196 for (int i = 0; i < kNumHoverThresholds; i++) |
200 last_hovers_[i].RecordHover(url); | 197 last_hovers_[i].RecordHover(url); |
201 | 198 |
202 if (url != current_hover_url_) { | 199 if (url != current_hover_url_) { |
203 MaybeLogCurrentHover(false); | 200 MaybeLogCurrentHover(false); |
204 current_hover_url_ = url; | 201 current_hover_url_ = url; |
205 current_hover_time_ = base::TimeTicks::Now(); | 202 current_hover_time_ = base::TimeTicks::Now(); |
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240 | 237 |
241 MaybeLogCurrentHover(current_hover_url_ == validated_url); | 238 MaybeLogCurrentHover(current_hover_url_ == validated_url); |
242 } | 239 } |
243 } | 240 } |
244 | 241 |
245 PrerenderManager* PrerenderTabHelper::MaybeGetPrerenderManager() const { | 242 PrerenderManager* PrerenderTabHelper::MaybeGetPrerenderManager() const { |
246 return PrerenderManagerFactory::GetForProfile( | 243 return PrerenderManagerFactory::GetForProfile( |
247 Profile::FromBrowserContext(web_contents()->GetBrowserContext())); | 244 Profile::FromBrowserContext(web_contents()->GetBrowserContext())); |
248 } | 245 } |
249 | 246 |
250 bool PrerenderTabHelper::MaybeUsePrerenderedPage(const GURL& url, | |
251 const GURL& opener_url) { | |
252 PrerenderManager* prerender_manager = MaybeGetPrerenderManager(); | |
253 if (!prerender_manager) | |
254 return false; | |
255 DCHECK(!prerender_manager->IsWebContentsPrerendering(web_contents())); | |
256 return prerender_manager->MaybeUsePrerenderedPage(web_contents(), | |
257 url, | |
258 opener_url); | |
259 } | |
260 | |
261 bool PrerenderTabHelper::IsPrerendering() { | 247 bool PrerenderTabHelper::IsPrerendering() { |
262 PrerenderManager* prerender_manager = MaybeGetPrerenderManager(); | 248 PrerenderManager* prerender_manager = MaybeGetPrerenderManager(); |
263 if (!prerender_manager) | 249 if (!prerender_manager) |
264 return false; | 250 return false; |
265 return prerender_manager->IsWebContentsPrerendering(web_contents()); | 251 return prerender_manager->IsWebContentsPrerendering(web_contents()); |
266 } | 252 } |
267 | 253 |
268 void PrerenderTabHelper::PrerenderSwappedIn() { | 254 void PrerenderTabHelper::PrerenderSwappedIn() { |
269 // Ensure we are not prerendering any more. | 255 // Ensure we are not prerendering any more. |
270 DCHECK(!IsPrerendering()); | 256 DCHECK(!IsPrerendering()); |
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302 | 288 |
303 current_hover_url_ = GURL(); | 289 current_hover_url_ = GURL(); |
304 } | 290 } |
305 | 291 |
306 bool PrerenderTabHelper::IsTopSite(const GURL& url) { | 292 bool PrerenderTabHelper::IsTopSite(const GURL& url) { |
307 PrerenderManager* pm = MaybeGetPrerenderManager(); | 293 PrerenderManager* pm = MaybeGetPrerenderManager(); |
308 return (pm && pm->IsTopSite(url)); | 294 return (pm && pm->IsTopSite(url)); |
309 } | 295 } |
310 | 296 |
311 } // namespace prerender | 297 } // namespace prerender |
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