Callbacks through ChromeClient->RenderView->RenderViewHost for ContentsDidCha...

chrome/browser/extensions/extension_view.cc

 // Copyright (c) 2006-2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/extensions/extension_view.h"
 
 #include "chrome/browser/extensions/extension.h"
 #include "chrome/browser/extensions/extension_message_service.h"
 #include "chrome/browser/renderer_host/render_view_host.h"
 #include "chrome/browser/renderer_host/render_process_host.h"
 #include "chrome/common/resource_bundle.h"
 
 #include "grit/browser_resources.h"
 #include "grit/generated_resources.h"
 
 ExtensionView::ExtensionView(Extension* extension,
                              const GURL& url,
                              Profile* profile)
     : HWNDHtmlView(url, this, false),
       extension_(extension),
       profile_(profile) {
-  // TODO(mpcomplete): query this from the renderer somehow?
-  set_preferred_size(gfx::Size(100, 100));
+  // Set the width initially to 0, so that the WebCore::Document can
+  // correctly compute the minPrefWidth which is returned in
+  // DidContentsChangeSize()
+  set_preferred_size(gfx::Size(0, 100));
+  SetVisible(false);
+}
+
+void ExtensionView::DidStopLoading(RenderViewHost* render_view_host,
+      int32 page_id) {
+  SetVisible(true);
+  render_view_host->WasResized();
+}
+
+void ExtensionView::DidContentsPreferredWidthChange(const int pref_width) {
+  if (pref_width > 0) {
+    // SchedulePaint first because new_width may be smaller and we want
+    // the Parent to paint the vacated space.
+    SchedulePaint();
+    set_preferred_size(gfx::Size(pref_width, 100));
+    SizeToPreferredSize();
+
+    // TODO(rafaelw): This assumes that the extension view is a child of an
+    // ExtensionToolstrip, which is a child of the BookmarkBarView. There should
+    // be a way to do this where the ExtensionView doesn't have to know it's
+    // containment hierarchy.
+    if (GetParent() != NULL && GetParent()->GetParent() != NULL) {
+      GetParent()->GetParent()->Layout();
+    }
+
+    SchedulePaint();
+    render_view_host()->WasResized();
+  }
 }
 
 void ExtensionView::CreatingRenderer() {
   render_view_host()->AllowExtensionBindings();
 }
 
 void ExtensionView::RenderViewCreated(RenderViewHost* rvh) {
   ExtensionMessageService::GetInstance()->RegisterExtension(
       extension_->id(), render_view_host()->process()->pid());
 }
@@ skipping 16 matching lines @@
   render_view_host()->JavaScriptMessageBoxClosed(reply_msg, true, L"");
 }
 
 void ExtensionView::DidStartLoading(RenderViewHost* render_view_host,
                                     int32 page_id) {
   static const StringPiece toolstrip_css(
       ResourceBundle::GetSharedInstance().GetRawDataResource(
           IDR_EXTENSIONS_TOOLSTRIP_CSS));
   render_view_host->InsertCSSInWebFrame(L"", toolstrip_css.as_string());
 }