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Side by Side Diff: content/browser/frame_host/frame_tree_node.h

Issue 92153003: Rename RenderViewHostManager to RenderFrameHostManager. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Rebase Created 7 years ago
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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 #ifndef CONTENT_BROWSER_FRAME_HOST_FRAME_TREE_NODE_H_ 5 #ifndef CONTENT_BROWSER_FRAME_HOST_FRAME_TREE_NODE_H_
6 #define CONTENT_BROWSER_FRAME_HOST_FRAME_TREE_NODE_H_ 6 #define CONTENT_BROWSER_FRAME_HOST_FRAME_TREE_NODE_H_
7 7
8 #include <string> 8 #include <string>
9 9
10 #include "base/basictypes.h" 10 #include "base/basictypes.h"
11 #include "base/memory/ref_counted.h" 11 #include "base/memory/ref_counted.h"
12 #include "base/memory/scoped_ptr.h" 12 #include "base/memory/scoped_ptr.h"
13 #include "base/memory/scoped_vector.h" 13 #include "base/memory/scoped_vector.h"
14 #include "content/browser/frame_host/render_view_host_manager.h" 14 #include "content/browser/frame_host/render_frame_host_manager.h"
15 #include "content/common/content_export.h" 15 #include "content/common/content_export.h"
16 #include "url/gurl.h" 16 #include "url/gurl.h"
17 17
18 namespace content { 18 namespace content {
19 19
20 class Navigator; 20 class Navigator;
21 class RenderFrameHostImpl; 21 class RenderFrameHostImpl;
22 22
23 // When a page contains iframes, its renderer process maintains a tree structure 23 // When a page contains iframes, its renderer process maintains a tree structure
24 // of those frames. We are mirroring this tree in the browser process. This 24 // of those frames. We are mirroring this tree in the browser process. This
25 // class represents a node in this tree and is a wrapper for all objects that 25 // class represents a node in this tree and is a wrapper for all objects that
26 // are frame-specific (as opposed to page-specific). 26 // are frame-specific (as opposed to page-specific).
27 class CONTENT_EXPORT FrameTreeNode { 27 class CONTENT_EXPORT FrameTreeNode {
28 public: 28 public:
29 static const int64 kInvalidFrameId; 29 static const int64 kInvalidFrameId;
30 30
31 FrameTreeNode(Navigator* navigator, 31 FrameTreeNode(Navigator* navigator,
32 RenderViewHostDelegate* render_view_delegate, 32 RenderViewHostDelegate* render_view_delegate,
33 RenderWidgetHostDelegate* render_widget_delegate, 33 RenderWidgetHostDelegate* render_widget_delegate,
34 RenderViewHostManager::Delegate* manager_delegate, 34 RenderFrameHostManager::Delegate* manager_delegate,
35 int64 frame_id, 35 int64 frame_id,
36 const std::string& name, 36 const std::string& name,
37 scoped_ptr<RenderFrameHostImpl> render_frame_host); 37 scoped_ptr<RenderFrameHostImpl> render_frame_host);
38 38
39 ~FrameTreeNode(); 39 ~FrameTreeNode();
40 40
41 void AddChild(scoped_ptr<FrameTreeNode> child); 41 void AddChild(scoped_ptr<FrameTreeNode> child);
42 void RemoveChild(FrameTreeNode* child); 42 void RemoveChild(FrameTreeNode* child);
43 43
44 // Transitional API allowing the RenderFrameHost of a FrameTreeNode 44 // Transitional API allowing the RenderFrameHost of a FrameTreeNode
45 // representing the main frame to be provided by someone else. After 45 // representing the main frame to be provided by someone else. After
46 // this is called, the FrameTreeNode no longer owns its RenderFrameHost. 46 // this is called, the FrameTreeNode no longer owns its RenderFrameHost.
47 // 47 //
48 // This should only be used for the main frame (aka root) in a frame tree. 48 // This should only be used for the main frame (aka root) in a frame tree.
49 // 49 //
50 // TODO(ajwong): Remove this method once the main frame RenderFrameHostImpl is 50 // TODO(ajwong): Remove this method once the main frame RenderFrameHostImpl is
51 // no longer owned by the RenderViewHostImpl. 51 // no longer owned by the RenderViewHostImpl.
52 void ResetForMainFrame(RenderFrameHostImpl* new_render_frame_host); 52 void ResetForMainFrame(RenderFrameHostImpl* new_render_frame_host);
53 53
54 Navigator* navigator() { 54 Navigator* navigator() {
55 return navigator_.get(); 55 return navigator_.get();
56 } 56 }
57 57
58 RenderViewHostManager* render_manager() { 58 RenderFrameHostManager* render_manager() {
59 return &render_manager_; 59 return &render_manager_;
60 } 60 }
61 61
62 int64 frame_tree_node_id() const { 62 int64 frame_tree_node_id() const {
63 return frame_tree_node_id_; 63 return frame_tree_node_id_;
64 } 64 }
65 65
66 // DO NOT USE. Only used by FrameTree until we replace renderer-specific 66 // DO NOT USE. Only used by FrameTree until we replace renderer-specific
67 // frame IDs with RenderFrameHost routing IDs. 67 // frame IDs with RenderFrameHost routing IDs.
68 void set_frame_id(int64 frame_id) { 68 void set_frame_id(int64 frame_id) {
(...skipping 33 matching lines...) Expand 10 before | Expand all | Expand 10 after
102 static int64 next_frame_tree_node_id_; 102 static int64 next_frame_tree_node_id_;
103 103
104 // The Navigator object responsible for managing navigations at this node 104 // The Navigator object responsible for managing navigations at this node
105 // of the frame tree. 105 // of the frame tree.
106 scoped_refptr<Navigator> navigator_; 106 scoped_refptr<Navigator> navigator_;
107 107
108 // Manages creation and swapping of RenderViewHosts for this frame. This must 108 // Manages creation and swapping of RenderViewHosts for this frame. This must
109 // be declared before |children_| so that it gets deleted after them. That's 109 // be declared before |children_| so that it gets deleted after them. That's
110 // currently necessary so that RenderFrameHostImpl's destructor can call 110 // currently necessary so that RenderFrameHostImpl's destructor can call
111 // GetProcess. 111 // GetProcess.
112 // TODO(creis): This will become a RenderFrameHostManager, which eliminates 112 // TODO(creis): This will eliminate the need for |render_frame_host_| below.
113 // the need for |render_frame_host_| below. 113 RenderFrameHostManager render_manager_;
114 RenderViewHostManager render_manager_;
115 114
116 // A browser-global identifier for the frame in the page, which stays stable 115 // A browser-global identifier for the frame in the page, which stays stable
117 // even if the frame does a cross-process navigation. 116 // even if the frame does a cross-process navigation.
118 const int64 frame_tree_node_id_; 117 const int64 frame_tree_node_id_;
119 118
120 // The renderer-specific identifier for the frame in the page. 119 // The renderer-specific identifier for the frame in the page.
121 // TODO(creis): Remove this in favor of the RenderFrameHost's routing ID once 120 // TODO(creis): Remove this in favor of the RenderFrameHost's routing ID once
122 // we create FrameTreeNodes for all frames (even without a flag), since this 121 // we create FrameTreeNodes for all frames (even without a flag), since this
123 // value can change after cross-process navigations. 122 // value can change after cross-process navigations.
124 int64 frame_id_; 123 int64 frame_id_;
125 124
126 // The assigned name of the frame. This name can be empty, unlike the unique 125 // The assigned name of the frame. This name can be empty, unlike the unique
127 // name generated internally in the DOM tree. 126 // name generated internally in the DOM tree.
128 std::string frame_name_; 127 std::string frame_name_;
129 128
130 // The immediate children of this specific frame. 129 // The immediate children of this specific frame.
131 ScopedVector<FrameTreeNode> children_; 130 ScopedVector<FrameTreeNode> children_;
132 131
133 // When ResetForMainFrame() is called, this is set to false and the 132 // When ResetForMainFrame() is called, this is set to false and the
134 // |render_frame_host_| below is not deleted on destruction. 133 // |render_frame_host_| below is not deleted on destruction.
135 // 134 //
136 // For the mainframe, the FrameTree does not own the |render_frame_host_|. 135 // For the mainframe, the FrameTree does not own the |render_frame_host_|.
137 // This is a transitional wart because RenderViewHostManager does not yet 136 // This is a transitional wart because RenderFrameHostManager does not yet
138 // have the bookkeeping logic to handle creating a pending RenderFrameHost 137 // have the bookkeeping logic to handle creating a pending RenderFrameHost
139 // along with a pending RenderViewHost. Thus, for the main frame, the 138 // along with a pending RenderViewHost. Thus, for the main frame, the
140 // RenderViewHost currently retains ownership and the FrameTreeNode should 139 // RenderViewHost currently retains ownership and the FrameTreeNode should
141 // not delete it on destruction. 140 // not delete it on destruction.
142 bool owns_render_frame_host_; 141 bool owns_render_frame_host_;
143 142
144 // The active RenderFrameHost for this frame. The FrameTreeNode does not 143 // The active RenderFrameHost for this frame. The FrameTreeNode does not
145 // always own this pointer. See comments above |owns_render_frame_host_|. 144 // always own this pointer. See comments above |owns_render_frame_host_|.
146 // TODO(ajwong): Replace with RenderFrameHostManager. 145 // TODO(ajwong): Replace with RenderFrameHostManager.
147 RenderFrameHostImpl* render_frame_host_; 146 RenderFrameHostImpl* render_frame_host_;
148 147
149 // Track the current frame's last committed URL, so we can estimate the 148 // Track the current frame's last committed URL, so we can estimate the
150 // process impact of out-of-process iframes. 149 // process impact of out-of-process iframes.
151 // TODO(creis): Remove this when we can store subframe URLs in the 150 // TODO(creis): Remove this when we can store subframe URLs in the
152 // NavigationController. 151 // NavigationController.
153 GURL current_url_; 152 GURL current_url_;
154 153
155 DISALLOW_COPY_AND_ASSIGN(FrameTreeNode); 154 DISALLOW_COPY_AND_ASSIGN(FrameTreeNode);
156 }; 155 };
157 156
158 } // namespace content 157 } // namespace content
159 158
160 #endif // CONTENT_BROWSER_FRAME_HOST_FRAME_TREE_NODE_H_ 159 #endif // CONTENT_BROWSER_FRAME_HOST_FRAME_TREE_NODE_H_
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