Instant API: tell page whether the browser is capturing key strokes.

chrome/renderer/searchbox/searchbox.cc

 // Copyright 2012 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/renderer/searchbox/searchbox.h"
 
 #include "chrome/common/render_messages.h"
 #include "chrome/renderer/searchbox/searchbox_extension.h"
 #include "content/public/renderer/render_view.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h"
 
 SearchBox::SearchBox(content::RenderView* render_view)
     : content::RenderViewObserver(render_view),
       content::RenderViewObserverTracker<SearchBox>(render_view),
       verbatim_(false),
       selection_start_(0),
       selection_end_(0),
       results_base_(0),
       last_results_base_(0),
+      is_key_capture_enabled_(false),
       theme_area_height_(0),
       display_instant_results_(false) {
 }
 
 SearchBox::~SearchBox() {
 }
 
 void SearchBox::SetSuggestions(
     const std::vector<InstantSuggestion>& suggestions) {
   if (!suggestions.empty() &&
@@ skipping 77 matching lines @@
     IPC_MESSAGE_HANDLER(ChromeViewMsg_DetermineIfPageSupportsInstant,
                         OnDetermineIfPageSupportsInstant)
     IPC_MESSAGE_HANDLER(ChromeViewMsg_SearchBoxAutocompleteResults,
                         OnAutocompleteResults)
     IPC_MESSAGE_HANDLER(ChromeViewMsg_SearchBoxUpOrDownKeyPressed,
                         OnUpOrDownKeyPressed)
     IPC_MESSAGE_HANDLER(ChromeViewMsg_SearchBoxModeChanged,
                         OnModeChanged)
     IPC_MESSAGE_HANDLER(ChromeViewMsg_SearchBoxSetDisplayInstantResults,
                         OnSetDisplayInstantResults)
+    IPC_MESSAGE_HANDLER(ChromeViewMsg_SearchBoxKeyCaptureChanged,
+                        OnKeyCaptureChange)
     IPC_MESSAGE_HANDLER(ChromeViewMsg_SearchBoxThemeChanged,
                         OnThemeChanged)
     IPC_MESSAGE_HANDLER(ChromeViewMsg_SearchBoxThemeAreaHeightChanged,
                         OnThemeAreaHeightChanged)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
 void SearchBox::DidClearWindowObject(WebKit::WebFrame* frame) {
@@ skipping 70 matching lines @@
 }
 
 void SearchBox::OnUpOrDownKeyPressed(int count) {
   if (render_view()->GetWebView() && render_view()->GetWebView()->mainFrame()) {
     DVLOG(1) << render_view() << " OnKeyPress: " << count;
     extensions_v8::SearchBoxExtension::DispatchUpOrDownKeyPress(
         render_view()->GetWebView()->mainFrame(), count);
   }
 }
 
+void SearchBox::OnKeyCaptureChange(bool is_key_capture_enabled) {
+  if (is_key_capture_enabled != is_key_capture_enabled_ &&
+      render_view()->GetWebView() && render_view()->GetWebView()->mainFrame()) {
+    is_key_capture_enabled_ = is_key_capture_enabled;
+    DVLOG(1) << render_view() << " OnKeyCaptureChange";
+    extensions_v8::SearchBoxExtension::DispatchKeyCaptureChange(
+        render_view()->GetWebView()->mainFrame());
+  }
+}
+
 void SearchBox::OnModeChanged(const chrome::search::Mode& mode) {
   mode_ = mode;
   if (render_view()->GetWebView() && render_view()->GetWebView()->mainFrame()) {
     DVLOG(1) << render_view() << " OnModeChanged";
     extensions_v8::SearchBoxExtension::DispatchContextChange(
         render_view()->GetWebView()->mainFrame());
   }
 }
 
 void SearchBox::OnSetDisplayInstantResults(bool display_instant_results) {
@@ skipping 17 matching lines @@
 }
 
 void SearchBox::Reset() {
   query_.clear();
   verbatim_ = false;
   selection_start_ = 0;
   selection_end_ = 0;
   results_base_ = 0;
   rect_ = gfx::Rect();
   autocomplete_results_.clear();
+  is_key_capture_enabled_ = false;
   mode_ = chrome::search::Mode();
   theme_info_ = ThemeBackgroundInfo();
   theme_area_height_ = 0;
   // Don't reset display_instant_results_ to prevent clearing it on committed
   // results pages in extended mode. Otherwise resetting it is a no-op because
   // a new loader is created when it changes; see crbug.com/164662.
 }