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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 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 "content/browser/frame_host/frame_tree.h" | 5 #include "content/browser/frame_host/frame_tree.h" |
6 | 6 |
7 #include <queue> | 7 #include <queue> |
8 | 8 |
9 #include "base/bind.h" | 9 #include "base/bind.h" |
10 #include "base/callback.h" | 10 #include "base/callback.h" |
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45 | 45 |
46 // Iterate over the FrameTree to reset any node affected by the loss of the | 46 // Iterate over the FrameTree to reset any node affected by the loss of the |
47 // given RenderViewHost's process. | 47 // given RenderViewHost's process. |
48 bool ResetNodesForNewProcess(RenderViewHost* render_view_host, | 48 bool ResetNodesForNewProcess(RenderViewHost* render_view_host, |
49 FrameTreeNode* node) { | 49 FrameTreeNode* node) { |
50 if (render_view_host == node->current_frame_host()->render_view_host()) | 50 if (render_view_host == node->current_frame_host()->render_view_host()) |
51 node->ResetForNewProcess(); | 51 node->ResetForNewProcess(); |
52 return true; | 52 return true; |
53 } | 53 } |
54 | 54 |
55 bool CreateProxyForSiteInstance(const scoped_refptr<SiteInstance>& instance, | 55 bool CreateProxyForSiteInstance(FrameTreeNode* source_node, |
| 56 const scoped_refptr<SiteInstance>& instance, |
56 FrameTreeNode* node) { | 57 FrameTreeNode* node) { |
| 58 // Skip the node that initiated the creation. |
| 59 if (source_node == node) |
| 60 return true; |
| 61 |
57 node->render_manager()->CreateRenderFrameProxy(instance.get()); | 62 node->render_manager()->CreateRenderFrameProxy(instance.get()); |
58 return true; | 63 return true; |
59 } | 64 } |
60 | 65 |
61 } // namespace | 66 } // namespace |
62 | 67 |
63 FrameTree::FrameTree(Navigator* navigator, | 68 FrameTree::FrameTree(Navigator* navigator, |
64 RenderFrameHostDelegate* render_frame_delegate, | 69 RenderFrameHostDelegate* render_frame_delegate, |
65 RenderViewHostDelegate* render_view_delegate, | 70 RenderViewHostDelegate* render_view_delegate, |
66 RenderWidgetHostDelegate* render_widget_delegate, | 71 RenderWidgetHostDelegate* render_widget_delegate, |
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116 FrameTreeNode* result = render_frame_proxy_host->frame_tree_node(); | 121 FrameTreeNode* result = render_frame_proxy_host->frame_tree_node(); |
117 if (this == result->frame_tree()) | 122 if (this == result->frame_tree()) |
118 return result; | 123 return result; |
119 } | 124 } |
120 | 125 |
121 return NULL; | 126 return NULL; |
122 } | 127 } |
123 | 128 |
124 void FrameTree::ForEach( | 129 void FrameTree::ForEach( |
125 const base::Callback<bool(FrameTreeNode*)>& on_node) const { | 130 const base::Callback<bool(FrameTreeNode*)>& on_node) const { |
126 ForEach(on_node, NULL); | |
127 } | |
128 | |
129 void FrameTree::ForEach( | |
130 const base::Callback<bool(FrameTreeNode*)>& on_node, | |
131 FrameTreeNode* skip_this_subtree) const { | |
132 std::queue<FrameTreeNode*> queue; | 131 std::queue<FrameTreeNode*> queue; |
133 queue.push(root_.get()); | 132 queue.push(root_.get()); |
134 | 133 |
135 while (!queue.empty()) { | 134 while (!queue.empty()) { |
136 FrameTreeNode* node = queue.front(); | 135 FrameTreeNode* node = queue.front(); |
137 queue.pop(); | 136 queue.pop(); |
138 if (skip_this_subtree == node) | |
139 continue; | |
140 | |
141 if (!on_node.Run(node)) | 137 if (!on_node.Run(node)) |
142 break; | 138 break; |
143 | 139 |
144 for (size_t i = 0; i < node->child_count(); ++i) | 140 for (size_t i = 0; i < node->child_count(); ++i) |
145 queue.push(node->child_at(i)); | 141 queue.push(node->child_at(i)); |
146 } | 142 } |
147 } | 143 } |
148 | 144 |
149 RenderFrameHostImpl* FrameTree::AddFrame(FrameTreeNode* parent, | 145 RenderFrameHostImpl* FrameTree::AddFrame(FrameTreeNode* parent, |
150 int new_routing_id, | 146 int new_routing_id, |
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190 if (!render_view_host) { | 186 if (!render_view_host) { |
191 root()->render_manager()->CreateRenderFrame(site_instance, | 187 root()->render_manager()->CreateRenderFrame(site_instance, |
192 MSG_ROUTING_NONE, | 188 MSG_ROUTING_NONE, |
193 true, | 189 true, |
194 false, | 190 false, |
195 true); | 191 true); |
196 } | 192 } |
197 } | 193 } |
198 | 194 |
199 scoped_refptr<SiteInstance> instance(site_instance); | 195 scoped_refptr<SiteInstance> instance(site_instance); |
200 | 196 ForEach(base::Bind(&CreateProxyForSiteInstance, source, instance)); |
201 // Proxies are created in the FrameTree in response to a node navigating to a | |
202 // new SiteInstance. Since |source|'s navigation will replace the currently | |
203 // loaded document, the entire subtree under |source| will be removed. | |
204 ForEach(base::Bind(&CreateProxyForSiteInstance, instance), source); | |
205 } | 197 } |
206 | 198 |
207 void FrameTree::ResetForMainFrameSwap() { | 199 void FrameTree::ResetForMainFrameSwap() { |
208 root_->ResetForNewProcess(); | 200 root_->ResetForNewProcess(); |
209 focused_frame_tree_node_id_ = -1; | 201 focused_frame_tree_node_id_ = -1; |
210 } | 202 } |
211 | 203 |
212 void FrameTree::RenderProcessGone(RenderViewHost* render_view_host) { | 204 void FrameTree::RenderProcessGone(RenderViewHost* render_view_host) { |
213 // Walk the full tree looking for nodes that may be affected. Once a frame | 205 // Walk the full tree looking for nodes that may be affected. Once a frame |
214 // crashes, all of its child FrameTreeNodes go away. | 206 // crashes, all of its child FrameTreeNodes go away. |
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330 rvh->Shutdown(); | 322 rvh->Shutdown(); |
331 render_view_host_pending_shutdown_map_.erase(multi_iter); | 323 render_view_host_pending_shutdown_map_.erase(multi_iter); |
332 } | 324 } |
333 break; | 325 break; |
334 } | 326 } |
335 CHECK(render_view_host_found); | 327 CHECK(render_view_host_found); |
336 } | 328 } |
337 } | 329 } |
338 | 330 |
339 } // namespace content | 331 } // namespace content |
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