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Side by Side Diff: content/browser/tab_contents/render_view_host_manager.h

Issue 8956059: Rename NavigationController to NavigationControllerImpl and put it into the content namespace. Al... (Closed) Base URL: svn://chrome-svn/chrome/trunk/src/
Patch Set: '' Created 8 years, 11 months ago
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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 #ifndef CONTENT_BROWSER_TAB_CONTENTS_RENDER_VIEW_HOST_MANAGER_H_ 5 #ifndef CONTENT_BROWSER_TAB_CONTENTS_RENDER_VIEW_HOST_MANAGER_H_
6 #define CONTENT_BROWSER_TAB_CONTENTS_RENDER_VIEW_HOST_MANAGER_H_ 6 #define CONTENT_BROWSER_TAB_CONTENTS_RENDER_VIEW_HOST_MANAGER_H_
7 #pragma once 7 #pragma once
8 8
9 #include "base/basictypes.h" 9 #include "base/basictypes.h"
10 #include "base/logging.h" 10 #include "base/logging.h"
11 #include "base/memory/scoped_ptr.h" 11 #include "base/memory/scoped_ptr.h"
12 #include "content/browser/renderer_host/render_view_host_delegate.h" 12 #include "content/browser/renderer_host/render_view_host_delegate.h"
13 #include "content/browser/site_instance.h" 13 #include "content/browser/site_instance.h"
14 #include "content/common/content_export.h" 14 #include "content/common/content_export.h"
15 #include "content/public/browser/notification_observer.h" 15 #include "content/public/browser/notification_observer.h"
16 #include "content/public/browser/notification_registrar.h" 16 #include "content/public/browser/notification_registrar.h"
17 17
18 class InterstitialPage; 18 class InterstitialPage;
19 class NavigationController; 19 class NavigationController;
20 class NavigationEntry;
21 class RenderViewHost; 20 class RenderViewHost;
22 class RenderWidgetHostView; 21 class RenderWidgetHostView;
23 class WebUI; 22 class WebUI;
24 23
25 namespace content { 24 namespace content {
26 class BrowserContext; 25 class BrowserContext;
27 class NavigationEntry; 26 class NavigationEntry;
27 class NavigationEntryImpl;
28 } 28 }
29 29
30 // Manages RenderViewHosts for a TabContents. Normally there is only one and 30 // Manages RenderViewHosts for a TabContents. Normally there is only one and
31 // it is easy to do. But we can also have transitions of processes (and hence 31 // it is easy to do. But we can also have transitions of processes (and hence
32 // RenderViewHosts) that can get complex. 32 // RenderViewHosts) that can get complex.
33 class CONTENT_EXPORT RenderViewHostManager 33 class CONTENT_EXPORT RenderViewHostManager
34 : public RenderViewHostDelegate::RendererManagement, 34 : public RenderViewHostDelegate::RendererManagement,
35 public content::NotificationObserver { 35 public content::NotificationObserver {
36 public: 36 public:
37 // Functions implemented by our owner that we need. 37 // Functions implemented by our owner that we need.
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125 // Returns the current committed Web UI or NULL if none applies. 125 // Returns the current committed Web UI or NULL if none applies.
126 WebUI* web_ui() const { return web_ui_.get(); } 126 WebUI* web_ui() const { return web_ui_.get(); }
127 127
128 // Returns the Web UI for the pending navigation, or NULL of none applies. 128 // Returns the Web UI for the pending navigation, or NULL of none applies.
129 WebUI* pending_web_ui() const { return pending_web_ui_.get(); } 129 WebUI* pending_web_ui() const { return pending_web_ui_.get(); }
130 130
131 // Called when we want to instruct the renderer to navigate to the given 131 // Called when we want to instruct the renderer to navigate to the given
132 // navigation entry. It may create a new RenderViewHost or re-use an existing 132 // navigation entry. It may create a new RenderViewHost or re-use an existing
133 // one. The RenderViewHost to navigate will be returned. Returns NULL if one 133 // one. The RenderViewHost to navigate will be returned. Returns NULL if one
134 // could not be created. 134 // could not be created.
135 RenderViewHost* Navigate(const NavigationEntry& entry); 135 RenderViewHost* Navigate(const content::NavigationEntryImpl& entry);
136 136
137 // Instructs the various live views to stop. Called when the user directed the 137 // Instructs the various live views to stop. Called when the user directed the
138 // page to stop loading. 138 // page to stop loading.
139 void Stop(); 139 void Stop();
140 140
141 // Notifies the regular and pending RenderViewHosts that a load is or is not 141 // Notifies the regular and pending RenderViewHosts that a load is or is not
142 // happening. Even though the message is only for one of them, we don't know 142 // happening. Even though the message is only for one of them, we don't know
143 // which one so we tell both. 143 // which one so we tell both.
144 void SetIsLoading(bool is_loading); 144 void SetIsLoading(bool is_loading);
145 145
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208 bool ShouldTransitionCrossSite(); 208 bool ShouldTransitionCrossSite();
209 209
210 // Returns true if the two navigation entries are incompatible in some way 210 // Returns true if the two navigation entries are incompatible in some way
211 // other than site instances. Cases where this can happen include Web UI 211 // other than site instances. Cases where this can happen include Web UI
212 // to regular web pages. It will cause us to swap RenderViewHosts (and hence 212 // to regular web pages. It will cause us to swap RenderViewHosts (and hence
213 // RenderProcessHosts) even if the site instance would otherwise be the same. 213 // RenderProcessHosts) even if the site instance would otherwise be the same.
214 // As part of this, we'll also force new SiteInstances and BrowsingInstances. 214 // As part of this, we'll also force new SiteInstances and BrowsingInstances.
215 // Either of the entries may be NULL. 215 // Either of the entries may be NULL.
216 bool ShouldSwapProcessesForNavigation( 216 bool ShouldSwapProcessesForNavigation(
217 const content::NavigationEntry* cur_entry, 217 const content::NavigationEntry* cur_entry,
218 const NavigationEntry* new_entry) const; 218 const content::NavigationEntryImpl* new_entry) const;
219 219
220 // Returns an appropriate SiteInstance object for the given NavigationEntry, 220 // Returns an appropriate SiteInstance object for the given NavigationEntry,
221 // possibly reusing the current SiteInstance. 221 // possibly reusing the current SiteInstance.
222 // Never called if --process-per-tab is used. 222 // Never called if --process-per-tab is used.
223 SiteInstance* GetSiteInstanceForEntry(const NavigationEntry& entry, 223 SiteInstance* GetSiteInstanceForEntry(
224 SiteInstance* curr_instance); 224 const content::NavigationEntryImpl& entry,
225 SiteInstance* curr_instance);
225 226
226 // Helper method to create a pending RenderViewHost for a cross-site 227 // Helper method to create a pending RenderViewHost for a cross-site
227 // navigation. 228 // navigation.
228 bool CreatePendingRenderView(const NavigationEntry& entry, 229 bool CreatePendingRenderView(const content::NavigationEntryImpl& entry,
229 SiteInstance* instance); 230 SiteInstance* instance);
230 231
231 // Sets up the necessary state for a new RenderViewHost navigating to the 232 // Sets up the necessary state for a new RenderViewHost navigating to the
232 // given entry. 233 // given entry.
233 bool InitRenderView(RenderViewHost* render_view_host, 234 bool InitRenderView(RenderViewHost* render_view_host,
234 const NavigationEntry& entry); 235 const content::NavigationEntryImpl& entry);
235 236
236 // Sets the pending RenderViewHost/WebUI to be the active one. Note that this 237 // Sets the pending RenderViewHost/WebUI to be the active one. Note that this
237 // doesn't require the pending render_view_host_ pointer to be non-NULL, since 238 // doesn't require the pending render_view_host_ pointer to be non-NULL, since
238 // there could be Web UI switching as well. Call this for every commit. 239 // there could be Web UI switching as well. Call this for every commit.
239 void CommitPending(); 240 void CommitPending();
240 241
241 // Helper method to terminate the pending RenderViewHost. 242 // Helper method to terminate the pending RenderViewHost.
242 void CancelPending(); 243 void CancelPending();
243 244
244 RenderViewHost* UpdateRendererStateForNavigate(const NavigationEntry& entry); 245 RenderViewHost* UpdateRendererStateForNavigate(
246 const content::NavigationEntryImpl& entry);
245 247
246 // Called when a renderer process is starting to close. We should not 248 // Called when a renderer process is starting to close. We should not
247 // schedule new navigations in its swapped out RenderViewHosts after this. 249 // schedule new navigations in its swapped out RenderViewHosts after this.
248 void RendererProcessClosing(content::RenderProcessHost* render_process_host); 250 void RendererProcessClosing(content::RenderProcessHost* render_process_host);
249 251
250 // Our delegate, not owned by us. Guaranteed non-NULL. 252 // Our delegate, not owned by us. Guaranteed non-NULL.
251 Delegate* delegate_; 253 Delegate* delegate_;
252 254
253 // Whether a navigation requiring different RenderView's is pending. This is 255 // Whether a navigation requiring different RenderView's is pending. This is
254 // either cross-site request is (in the new process model), or when required 256 // either cross-site request is (in the new process model), or when required
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291 }; 293 };
292 294
293 // The "details" for a NOTIFY_RENDER_VIEW_HOST_CHANGED notification. The old 295 // The "details" for a NOTIFY_RENDER_VIEW_HOST_CHANGED notification. The old
294 // host can be NULL when the first RenderViewHost is set. 296 // host can be NULL when the first RenderViewHost is set.
295 struct RenderViewHostSwitchedDetails { 297 struct RenderViewHostSwitchedDetails {
296 RenderViewHost* old_host; 298 RenderViewHost* old_host;
297 RenderViewHost* new_host; 299 RenderViewHost* new_host;
298 }; 300 };
299 301
300 #endif // CONTENT_BROWSER_TAB_CONTENTS_RENDER_VIEW_HOST_MANAGER_H_ 302 #endif // CONTENT_BROWSER_TAB_CONTENTS_RENDER_VIEW_HOST_MANAGER_H_
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