Cross-process postMessage

content/browser/frame_mapper.cc

+// Copyright 2011 Google Inc. All Rights Reserved.
+// Author: supersat@google.com (Karl Koscher)
+
+#include "frame_mapper.h"
+#include "browsing_instance_frame_id.h"
+#include "base/logging.h"
+
+namespace content {
+
+FrameMapper::FrameMapper() {
+}
+
+FrameMapper::~FrameMapper() {
+}
+
+int64 FrameMapper::AllocateFrameId() {
+  return next_frame_id_.GetNext() + 1;
+}
+
+BrowsingInstanceFrame* FrameMapper::InitializeFrameId(int64 frame_id,
+                                                      bool is_top_level) {
+  BrowsingInstanceFrame* frameId = new BrowsingInstanceFrame(frame_id,
+                                                             is_top_level);
+    frame_id_map_.insert(
+        std::pair<int64, BrowsingInstanceFrame*>(frameId->id(), frameId));
+    return frameId;
+}
+
+BrowsingInstanceFrame* FrameMapper::AllocateNewTopLevelFrameId() {
+  return InitializeFrameId(AllocateFrameId(), true);
+}
+
+BrowsingInstanceFrame* FrameMapper::FindById(int64 id) {
+  return frame_id_map_[id];
+}
+
+BrowsingInstanceFrame *FrameMapper::FindByWebKitId(int render_process_host_id,
+                                                   int64 frame_id) {
+  BrowsingInstanceFrame::WebKitFrameIdTuple webkitFrameId(
+      render_process_host_id, frame_id);
+
+  BrowsingInstanceFrame* retVal = webkit_frame_id_map_[webkitFrameId];
+  DCHECK(retVal);
+  return retVal;
+}
+
+BrowsingInstanceFrame* FrameMapper::FindTopLevelFrameByProcessAndRoute(int process_id,
+                                                                       int route_id) {
+  // TODO(supersat): Make this significantly less hacky
+  FrameIdMap::iterator iter;
+  for (iter = frame_id_map_.begin(); iter != frame_id_map_.end(); iter++) {
+    BrowsingInstanceFrame* iterFrame = (*iter).second;
+    if (iterFrame->current_process_host_id() == process_id &&
+        iterFrame->current_route_id() == route_id &&
+        iterFrame->is_top_level()) {
+      return iterFrame;
+    }
+  }
+
+  return 0;
+}
+
+void FrameMapper::UpdateFrame(BrowsingInstanceFrame* frame,
+                              int render_process_host_id,
+                              int route_id,
+                              int64 frame_id) {
+  DLOG(WARNING) << "Calling UpdateFrame: " <<
+      render_process_host_id << ", " << route_id << ", " <<
+      frame_id;
+
+  DCHECK(frame);
+  BrowsingInstanceFrame::WebKitFrameIdTuple webkitFrameId(
+      render_process_host_id, frame_id);
+  frame->current_webkit_frame_ = webkitFrameId;
+  frame->current_route_id_ = route_id;
+  webkit_frame_id_map_.insert(
+      std::pair<BrowsingInstanceFrame::WebKitFrameIdTuple,
+      BrowsingInstanceFrame*>(webkitFrameId, frame));
+}
+
+void FrameMapper::RemoveFrame(BrowsingInstanceFrame* frame)
+{
+  DLOG(WARNING) << "Calling RemoveFrame";
+  // TODO(supersat): Remove child frames when they're supported
+  frame_id_map_.erase(frame->id());
+  webkit_frame_id_map_.erase(frame->current_webkit_frame());
+}
+
+}  // namespace content