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// 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_host.h"
#include "app/resource_bundle.h"
#include "chrome/browser/browser.h"
#include "chrome/browser/browser_list.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/debugger/devtools_manager.h"
#include "chrome/browser/extensions/extension_message_service.h"
#include "chrome/browser/extensions/extension_view.h"
#include "chrome/browser/profile.h"
#include "chrome/browser/renderer_host/render_view_host.h"
#include "chrome/browser/renderer_host/render_process_host.h"
#include "chrome/browser/renderer_host/render_widget_host.h"
#include "chrome/browser/renderer_host/render_widget_host_view.h"
#include "chrome/browser/tab_contents/site_instance.h"
#include "chrome/browser/tab_contents/tab_contents.h"
#include "chrome/browser/tab_contents/tab_contents_view.h"
#include "chrome/common/extensions/extension.h"
#include "chrome/common/pref_names.h"
#include "chrome/common/pref_service.h"
#include "grit/browser_resources.h"
#include "grit/generated_resources.h"
#include "webkit/glue/context_menu.h"
ExtensionHost::ExtensionHost(Extension* extension, SiteInstance* site_instance)
: extension_(extension),
#if defined(OS_WIN)
view_(NULL),
#endif
did_stop_loading_(false) {
render_view_host_ = new RenderViewHost(
site_instance, this, MSG_ROUTING_NONE, NULL);
render_view_host_->AllowExtensionBindings();
}
ExtensionHost::~ExtensionHost() {
render_view_host_->Shutdown(); // deletes render_view_host
}
SiteInstance* ExtensionHost::site_instance() const {
return render_view_host_->site_instance();
}
void ExtensionHost::CreateRenderView(const GURL& url,
RenderWidgetHostView* host_view) {
url_ = url;
render_view_host_->set_view(host_view);
render_view_host_->CreateRenderView();
render_view_host_->NavigateToURL(url);
}
void ExtensionHost::UpdatePreferredWidth(int pref_width) {
#if defined(OS_WIN)
if (view_)
view_->DidContentsPreferredWidthChange(pref_width);
#endif
}
WebPreferences ExtensionHost::GetWebkitPrefs() {
PrefService* prefs = render_view_host()->process()->profile()->GetPrefs();
const bool kIsDomUI = true;
return RenderViewHostDelegateHelper::GetWebkitPrefs(prefs, kIsDomUI);
}
void ExtensionHost::RunJavaScriptMessage(
const std::wstring& message,
const std::wstring& default_prompt,
const GURL& frame_url,
const int flags,
IPC::Message* reply_msg,
bool* did_suppress_message) {
// Automatically cancel the javascript alert (otherwise the renderer hangs
// indefinitely).
*did_suppress_message = true;
render_view_host()->JavaScriptMessageBoxClosed(reply_msg, true, L"");
}
void ExtensionHost::DidStopLoading(RenderViewHost* render_view_host) {
// TODO(aa): This is toolstrip-specific and should probably not be here.
// ExtensionToolstrip in bookmark_bar_view.cc?
static const StringPiece toolstrip_css(
ResourceBundle::GetSharedInstance().GetRawDataResource(
IDR_EXTENSIONS_TOOLSTRIP_CSS));
render_view_host->InsertCSSInWebFrame(L"", toolstrip_css.as_string());
render_view_host->WasResized();
did_stop_loading_ = true;
#if defined(OS_WIN)
if (view_)
view_->ShowIfCompletelyLoaded();
#endif
}
ExtensionFunctionDispatcher* ExtensionHost::
CreateExtensionFunctionDispatcher(RenderViewHost *render_view_host,
const std::string& extension_id) {
return new ExtensionFunctionDispatcher(render_view_host, this, extension_id);
}
RenderViewHostDelegate::View* ExtensionHost::GetViewDelegate() const {
// TODO(erikkay) this is unfortunate. The interface declares that this method
// must be const (no good reason for it as far as I can tell) which means you
// can't return self without doing this const_cast. Either we need to change
// the interface, or we need to split out the view delegate into another
// object (which is how TabContents works).
return const_cast<ExtensionHost*>(this);
}
void ExtensionHost::CreateNewWindow(int route_id,
base::WaitableEvent* modal_dialog_event) {
delegate_view_helper_.CreateNewWindow(
route_id, modal_dialog_event, render_view_host()->process()->profile(),
site_instance());
}
void ExtensionHost::CreateNewWidget(int route_id, bool activatable) {
delegate_view_helper_.CreateNewWidget(route_id, activatable,
site_instance()->GetProcess());
}
void ExtensionHost::ShowCreatedWindow(int route_id,
WindowOpenDisposition disposition,
const gfx::Rect& initial_pos,
bool user_gesture,
const GURL& creator_url) {
TabContents* contents = delegate_view_helper_.GetCreatedWindow(route_id);
if (contents) {
Browser* browser = GetBrowser();
DCHECK(browser);
if (!browser)
return;
// TODO(erikkay) is it safe to pass in NULL as source?
browser->AddTabContents(contents, disposition, initial_pos,
user_gesture);
}
}
void ExtensionHost::ShowCreatedWidget(int route_id,
const gfx::Rect& initial_pos) {
RenderWidgetHostView* widget_host_view =
delegate_view_helper_.GetCreatedWidget(route_id);
Browser *browser = GetBrowser();
DCHECK(browser);
if (!browser)
return;
browser->BrowserRenderWidgetShowing();
// TODO(erikkay): These two lines could be refactored with TabContentsView.
widget_host_view->InitAsPopup(render_view_host()->view(), initial_pos);
widget_host_view->GetRenderWidgetHost()->Init();
}
void ExtensionHost::ShowContextMenu(const ContextMenuParams& params) {
// TODO(erikkay) - This is a temporary hack. Show a menu here instead.
g_browser_process->devtools_manager()->OpenDevToolsWindow(render_view_host());
}
void ExtensionHost::StartDragging(const WebDropData& drop_data) {
}
void ExtensionHost::UpdateDragCursor(bool is_drop_target) {
}
void ExtensionHost::TakeFocus(bool reverse) {
}
void ExtensionHost::HandleKeyboardEvent(const NativeWebKeyboardEvent& event) {
}
void ExtensionHost::HandleMouseEvent() {
#if defined(OS_WIN)
if (view_)
view_->HandleMouseEvent();
#endif
}
void ExtensionHost::HandleMouseLeave() {
#if defined(OS_WIN)
if (view_)
view_->HandleMouseLeave();
#endif
}
Browser* ExtensionHost::GetBrowser() {
#if defined(OS_WIN)
if (view_)
return view_->browser();
#endif
Browser* browser = BrowserList::GetLastActiveWithProfile(
render_view_host()->process()->profile());
// NOTE(rafaelw): This can return NULL in some circumstances. In particular,
// a toolstrip or background_page onload chrome.tabs api call can make it
// into here before the browser is sufficiently initialized to return here.
// A similar situation may arise during shutdown.
// TODO(rafaelw): Delay creation of background_page until the browser
// is available. http://code.google.com/p/chromium/issues/detail?id=13284
return browser;
}
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