mole expand/collapse API

chrome/browser/extensions/extension_shelf_model.cc

 // Copyright (c) 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_shelf_model.h"
 
 #include "base/stl_util-inl.h"
 #include "chrome/browser/browser.h"
 #include "chrome/browser/profile.h"
 #include "chrome/browser/extensions/extension_host.h"
@@ skipping 21 matching lines @@
                    Source<ExtensionPrefs>(prefs_));
     ready_ = service->is_ready();
     if (ready_) {
       AddExtensions(service->extensions());
       SortToolstrips();
     }
   }
 }
 
 ExtensionShelfModel::~ExtensionShelfModel() {
+  FOR_EACH_OBSERVER(ExtensionShelfModelObserver, observers_,
+                    ShelfModelDeleting());
+
   while (observers_.size())
     observers_.RemoveObserver(observers_.GetElementAt(0));
 
-  ExtensionToolstrips::iterator t;
-  for (t = toolstrips_.begin(); t != toolstrips_.end(); ++t)
+  for (iterator t = toolstrips_.begin(); t != toolstrips_.end(); ++t)
     delete t->host;
   toolstrips_.clear();
 }
 
 void ExtensionShelfModel::AddObserver(ExtensionShelfModelObserver* observer) {
   observers_.AddObserver(observer);
 }
 
 void ExtensionShelfModel::RemoveObserver(
     ExtensionShelfModelObserver* observer) {
   observers_.RemoveObserver(observer);
 }
 
 void ExtensionShelfModel::AppendToolstrip(const ToolstripItem& toolstrip) {
   InsertToolstripAt(count(), toolstrip);
 }
 
 void ExtensionShelfModel::InsertToolstripAt(int index,
                                             const ToolstripItem& toolstrip) {
   toolstrips_.insert(toolstrips_.begin() + index, toolstrip);
   if (ready_) {
     FOR_EACH_OBSERVER(ExtensionShelfModelObserver, observers_,
                       ToolstripInsertedAt(toolstrip.host, index));
   }
 }
 
 void ExtensionShelfModel::RemoveToolstripAt(int index) {
-  ExtensionHost* host = ToolstripAt(index);
+  ExtensionHost* host = ToolstripAt(index).host;
   FOR_EACH_OBSERVER(ExtensionShelfModelObserver, observers_,
                     ToolstripRemovingAt(host, index));
   toolstrips_.erase(toolstrips_.begin() + index);
   delete host;
 }
 
 void ExtensionShelfModel::MoveToolstripAt(int index, int to_index) {
   DCHECK(index >= 0);
   DCHECK(to_index >= 0);
   if (index == to_index)
     return;
 
   ToolstripItem toolstrip = toolstrips_[index];
   toolstrips_.erase(toolstrips_.begin() + index);
   toolstrips_.insert(toolstrips_.begin() + to_index, toolstrip);
 
   FOR_EACH_OBSERVER(ExtensionShelfModelObserver, observers_,
                     ToolstripMoved(toolstrip.host, index, to_index));
 
   UpdatePrefs();
 }
 
-int ExtensionShelfModel::IndexOfToolstrip(ExtensionHost* toolstrip) {
-  ExtensionToolstrips::iterator i;
-  for (i = toolstrips_.begin(); i != toolstrips_.end(); ++i) {
-    if (i->host == toolstrip)
+int ExtensionShelfModel::IndexOfHost(ExtensionHost* host) {
+  for (iterator i = toolstrips_.begin(); i != toolstrips_.end(); ++i) {
+    if (i->host == host)
       return i - toolstrips_.begin();
   }
   return -1;
 }
 
-ExtensionHost* ExtensionShelfModel::ToolstripAt(int index) {
-  DCHECK(index >= 0);
-  return toolstrips_[index].host;
+ExtensionShelfModel::iterator ExtensionShelfModel::ToolstripForHost(
+    ExtensionHost* host) {
+  for (iterator i = toolstrips_.begin(); i != toolstrips_.end(); ++i) {
+    if (i->host == host)
+      return i;
+  }
+  return toolstrips_.end();
 }
 
-Extension::ToolstripInfo& ExtensionShelfModel::ToolstripInfoAt(int index) {
+const ExtensionShelfModel::ToolstripItem& ExtensionShelfModel::ToolstripAt(
+    int index) {
   DCHECK(index >= 0);
-  return toolstrips_[index].info;
-}
-
-void* ExtensionShelfModel::ToolstripDataAt(int index) {
-  DCHECK(index >= 0);
-  return toolstrips_[index].data;
+  return toolstrips_[index];
 }
 
 void ExtensionShelfModel::SetToolstripDataAt(int index, void* data) {
   DCHECK(index >= 0);
   toolstrips_[index].data = data;
 }
 
+void ExtensionShelfModel::ExpandToolstrip(iterator toolstrip,
+                                          const GURL& url, int height) {
+  if (toolstrip == end())
+    return;
+  toolstrip->height = height;
+  toolstrip->url = url;
+  FOR_EACH_OBSERVER(ExtensionShelfModelObserver, observers_,
+                    ToolstripChanged(toolstrip));
+}
+
+void ExtensionShelfModel::CollapseToolstrip(iterator toolstrip,
+                                            const GURL& url) {
+  if (toolstrip == end())
+    return;
+  toolstrip->height = 0;
+  toolstrip->url = url;
+  FOR_EACH_OBSERVER(ExtensionShelfModelObserver, observers_,
+                    ToolstripChanged(toolstrip));
+}
+
 void ExtensionShelfModel::Observe(NotificationType type,
                                   const NotificationSource& source,
                                   const NotificationDetails& details) {
   switch (type.value) {
     case NotificationType::EXTENSIONS_LOADED:
       if (ready_)
         AddExtensions(Details<ExtensionList>(details).ptr());
       break;
     case NotificationType::EXTENSION_UNLOADED:
       RemoveExtension(Details<Extension>(details).ptr());
       break;
     case NotificationType::EXTENSIONS_READY:
       if (browser_->profile()->GetExtensionsService()) {
-        AddExtensions(browser_->profile()->GetExtensionsService()->extensions());
+        AddExtensions(
+            browser_->profile()->GetExtensionsService()->extensions());
         SortToolstrips();
       }
       ready_ = true;
       break;
     case NotificationType::EXTENSION_SHELF_MODEL_CHANGED:
       // Ignore changes that this model originated.
       if (Details<ExtensionShelfModel>(details).ptr() != this)
         SortToolstrips();
       break;
     default:
@@ skipping 10 matching lines @@
     return;
 
   for (std::vector<Extension::ToolstripInfo>::const_iterator toolstrip =
        extension->toolstrips().begin();
        toolstrip != extension->toolstrips().end(); ++toolstrip) {
     GURL url = toolstrip->toolstrip;
     ToolstripItem item;
     item.host = manager->CreateView(extension, url, browser_);
     item.info = *toolstrip;
     item.data = NULL;
+    item.height = 0;
     AppendToolstrip(item);
   }
 }
 
 void ExtensionShelfModel::AddExtensions(const ExtensionList* extensions) {
   if (extensions->size()) {
     ExtensionList::const_iterator extension = extensions->begin();
     for (; extension != extensions->end(); ++extension)
       AddExtension(*extension);
   }
 }
 
 void ExtensionShelfModel::RemoveExtension(Extension* extension) {
   bool changed = false;
   for (int i = count() - 1; i >= 0; --i) {
-    ExtensionHost* t = ToolstripAt(i);
+    ExtensionHost* t = ToolstripAt(i).host;
     if (t->extension()->id() == extension->id()) {
       changed = true;
       RemoveToolstripAt(i);
 
       // There can be more than one toolstrip per extension, so we have to keep
       // looping even after finding a match.
     }
   }
   if (changed)
     UpdatePrefs();
 }
 
 void ExtensionShelfModel::UpdatePrefs() {
   if (!prefs_)
     return;
 
   // It's easiest to just rebuild the list each time.
   ExtensionPrefs::URLList urls;
   for (int i = 0; i < count(); ++i)
-    urls.push_back(ToolstripAt(i)->GetURL());
+    urls.push_back(ToolstripAt(i).host->GetURL());
   prefs_->SetShelfToolstripOrder(urls);
 
   NotificationService::current()->Notify(
       NotificationType::EXTENSION_SHELF_MODEL_CHANGED,
       Source<ExtensionPrefs>(prefs_),
       Details<ExtensionShelfModel>(this));
 }
 
 void ExtensionShelfModel::SortToolstrips() {
   ExtensionPrefs::URLList urls = prefs_->GetShelfToolstripOrder();
-  ExtensionToolstrips copy =
-      ExtensionToolstrips(toolstrips_.begin(), toolstrips_.end());
+  ToolstripList copy =
+      ToolstripList(toolstrips_.begin(), toolstrips_.end());
   toolstrips_.clear();
 
   // Go through the urls and find the matching toolstrip, re-adding it to the
   // new list in the proper order.
   for (size_t i = 0; i < urls.size(); ++i) {
     GURL& url = urls[i];
-    for (ExtensionToolstrips::iterator toolstrip = copy.begin();
+    for (iterator toolstrip = copy.begin();
         toolstrip != copy.end(); ++toolstrip) {
       if (url == toolstrip->host->GetURL()) {
         // Note that it's technically possible for the same URL to appear in
         // multiple toolstrips, so we don't do any testing for uniqueness.
         toolstrips_.push_back(*toolstrip);
 
         // Remove the toolstrip from the list so we don't have to iterate over
         // it next time.
         copy.erase(toolstrip);
         break;
       }
     }
   }
 
   // Any toolstrips remaining in |copy| were somehow missing from the prefs,
   // so just append them to the end.
-  for (ExtensionToolstrips::iterator toolstrip = copy.begin();
+  for (iterator toolstrip = copy.begin();
       toolstrip != copy.end(); ++toolstrip) {
     toolstrips_.push_back(*toolstrip);
   }
 
   FOR_EACH_OBSERVER(ExtensionShelfModelObserver, observers_,
                     ShelfModelReloaded());
 }