InstantExtended: Committed NTP

chrome/browser/instant/instant_api_wrapper.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/browser/instant/instant_api_wrapper.h"
+
+#include "base/utf_string_conversions.h"
+#include "chrome/common/render_messages.h"
+#include "content/public/browser/web_contents.h"
+#include "ui/base/resource/resource_bundle.h"
+#include "ui/gfx/font.h"
+
+InstantAPIWrapper::Controller::~Controller() {
+}
+
+InstantAPIWrapper::Receiver::~Receiver() {
+}
+
+InstantAPIWrapper::InstantAPIWrapper(Controller* controller,
+                                     Receiver* receiver)
+  : controller_(controller),
+    receiver_(receiver) {
+}
+
+InstantAPIWrapper::~InstantAPIWrapper() {
+}
+
+void InstantAPIWrapper::SetContents(content::WebContents* contents) {
+  Observe(contents);
+}
+
+void InstantAPIWrapper::Update(const string16& text,
+                               size_t selection_start,
+                               size_t selection_end,
+                               bool verbatim) {
+  controller_->OnUpdate();
+  Send(new ChromeViewMsg_SearchBoxChange(routing_id(), text, verbatim,
+                                         selection_start, selection_end));
+}
+
+void InstantAPIWrapper::Submit(const string16& text) {
+  Send(new ChromeViewMsg_SearchBoxSubmit(routing_id(), text));
+}
+
+void InstantAPIWrapper::Cancel(const string16& text) {
+  Send(new ChromeViewMsg_SearchBoxCancel(routing_id(), text));
+}
+
+void InstantAPIWrapper::SetPopupBounds(const gfx::Rect& bounds) {
+  Send(new ChromeViewMsg_SearchBoxPopupResize(routing_id(), bounds));
+}
+
+void InstantAPIWrapper::SetMarginSize(const int start, const int end) {
+  Send(new ChromeViewMsg_SearchBoxMarginChange(routing_id(), start, end));
+}
+
+void InstantAPIWrapper::DetermineIfPageSupportsInstant() {
+  Send(new ChromeViewMsg_DetermineIfPageSupportsInstant(routing_id()));
+}
+
+void InstantAPIWrapper::SendAutocompleteResults(
+      const std::vector<InstantAutocompleteResult>& results) {
+  Send(new ChromeViewMsg_SearchBoxAutocompleteResults(routing_id(), results));
+}
+
+void InstantAPIWrapper::UpOrDownKeyPressed(int count) {
+  Send(new ChromeViewMsg_SearchBoxUpOrDownKeyPressed(routing_id(), count));
+}
+
+void InstantAPIWrapper::SearchModeChanged(const chrome::search::Mode& mode) {
+  Send(new ChromeViewMsg_SearchBoxModeChanged(routing_id(), mode));
+}
+
+void InstantAPIWrapper::SendThemeBackgroundInfo(
+      const ThemeBackgroundInfo& theme_info) {
+  Send(new ChromeViewMsg_SearchBoxThemeChanged(routing_id(), theme_info));
+}
+
+void InstantAPIWrapper::SendThemeAreaHeight(int height) {
+  Send(new ChromeViewMsg_SearchBoxThemeAreaHeightChanged(routing_id(), height));
+}
+
+void InstantAPIWrapper::SetDisplayInstantResults(bool display_instant_results) {
+  Send(new ChromeViewMsg_SearchBoxSetDisplayInstantResults(
+      routing_id(), display_instant_results));
+}
+
+void InstantAPIWrapper::KeyCaptureChanged(bool is_key_capture_enabled) {
+  Send(new ChromeViewMsg_SearchBoxKeyCaptureChanged(
+      routing_id(), is_key_capture_enabled));
+}
+
+void InstantAPIWrapper::DidFinishLoad(
+    int64 /* frame_id */,
+    const GURL& /* validated_url */,
+    bool is_main_frame,
+    content::RenderViewHost* /* render_view_host */) {
+  if (is_main_frame)
+    DetermineIfPageSupportsInstant();
+}
+
+bool InstantAPIWrapper::OnMessageReceived(const IPC::Message& message) {
+  bool handled = true;
+  IPC_BEGIN_MESSAGE_MAP(InstantAPIWrapper, message)
+    IPC_MESSAGE_HANDLER(ChromeViewHostMsg_SetSuggestions, SetSuggestions)

[dhollowa, 2013/01/14 19:59:39]

We should change these handler names to OnSetSuggestions,
OnInstantSupportDetermined, etc.

[samarth, 2013/01/22 15:59:06]

Done.

+    IPC_MESSAGE_HANDLER(ChromeViewHostMsg_InstantSupportDetermined,
+                        InstantSupportDetermined)
+    IPC_MESSAGE_HANDLER(ChromeViewHostMsg_ShowInstantPreview,
+                        ShowInstantPreview)
+    IPC_MESSAGE_HANDLER(ChromeViewHostMsg_StartCapturingKeyStrokes,
+                        StartCapturingKeyStrokes);
+    IPC_MESSAGE_HANDLER(ChromeViewHostMsg_StopCapturingKeyStrokes,
+                        StopCapturingKeyStrokes);
+    IPC_MESSAGE_HANDLER(ChromeViewHostMsg_SearchBoxNavigate,
+                        SearchBoxNavigate);
+    IPC_MESSAGE_UNHANDLED(handled = false)
+  IPC_END_MESSAGE_MAP()
+  return handled;
+}
+
+void InstantAPIWrapper::RenderViewGone(base::TerminationStatus status) {
+  if (controller_->OnRenderViewGone())
+    receiver_->InstantPageRenderViewGone(web_contents());
+}
+
+void InstantAPIWrapper::DidCommitProvisionalLoadForFrame(
+    int64 frame_id,
+    bool is_main_frame,
+    const GURL& url,
+    content::PageTransition transition_type,
+    content::RenderViewHost* render_view_host) {
+  if (is_main_frame && controller_->OnAboutToNavigateMainFrame())
+    receiver_->InstantPageAboutToNavigateMainFrame(web_contents(), url);
+}
+
+void InstantAPIWrapper::SetSuggestions(
+    int page_id,
+    const std::vector<InstantSuggestion>& suggestions) {
+  if (web_contents()->IsActiveEntry(page_id)) {
+    InstantSupportDetermined(page_id, true);
+    if (controller_->OnSetSuggestions())
+      receiver_->SetSuggestions(web_contents(), suggestions);
+  }
+}
+
+void InstantAPIWrapper::InstantSupportDetermined(int page_id, bool result) {
+  if (!web_contents()->IsActiveEntry(page_id) ||
+      controller_->supports_instant()) {
+    // Nothing to do if the page already supports instant.
+    return;
+  }
+
+  controller_->set_supports_instant(result);
+  receiver_->InstantSupportDetermined(web_contents(), result);
+
+  if (result) {

[Jered, 2013/01/14 18:22:34]

result -> supports_instant

[samarth, 2013/01/22 15:59:06]

Done.

+    // Inform the renderer process of the Omnibox's font information.
+    // TODO(samarth): this logic doesn't really belong here. Move this to
+    // InstantController.
+    const gfx::Font& omnibox_font =
+        ui::ResourceBundle::GetSharedInstance().GetFont(
+            ui::ResourceBundle::MediumFont);
+    string16 omnibox_font_name = UTF8ToUTF16(omnibox_font.GetFontName());
+    size_t omnibox_font_size = omnibox_font.GetFontSize();
+
+    Send(new ChromeViewMsg_SearchBoxFontInformation(
+        routing_id(), omnibox_font_name, omnibox_font_size));
+  } else {
+    // If the page doesn't support Instant, stop communicating with it.
+    SetContents(NULL);
+  }
+}
+
+void InstantAPIWrapper::ShowInstantPreview(int page_id,
+                                           InstantShownReason reason,
+                                           int height,
+                                           InstantSizeUnits units) {
+  if (web_contents()->IsActiveEntry(page_id)) {
+    InstantSupportDetermined(page_id, true);
+    if (controller_->OnShowInstantPreview())
+      receiver_->ShowInstantPreview(web_contents(), reason, height, units);
+  }
+}
+
+void InstantAPIWrapper::StartCapturingKeyStrokes(int page_id) {
+  if (web_contents()->IsActiveEntry(page_id)) {
+    InstantSupportDetermined(page_id, true);
+    if (controller_->OnStartCapturingKeyStrokes())
+      receiver_->StartCapturingKeyStrokes(web_contents());
+  }
+}
+
+void InstantAPIWrapper::StopCapturingKeyStrokes(int page_id) {
+  if (web_contents()->IsActiveEntry(page_id)) {
+    InstantSupportDetermined(page_id, true);
+    if (controller_->OnStopCapturingKeyStrokes())
+      receiver_->StopCapturingKeyStrokes(web_contents());
+  }
+}
+
+void InstantAPIWrapper::SearchBoxNavigate(int page_id,
+                                          const GURL& url,
+                                          content::PageTransition transition) {
+  if (web_contents()->IsActiveEntry(page_id)) {
+    InstantSupportDetermined(page_id, true);
+    if (controller_->OnNavigateToURL())
+      receiver_->NavigateToURL(web_contents(), url, transition);
+  }
+}