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// Copyright (c) 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/ui/gtk/extensions/extension_popup_gtk.h"
#include <gtk/gtk.h>
#include <algorithm>
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/callback.h"
#include "base/i18n/rtl.h"
#include "base/message_loop.h"
#include "chrome/browser/debugger/devtools_window.h"
#include "chrome/browser/extensions/extension_host.h"
#include "chrome/browser/extensions/extension_process_manager.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_window.h"
#include "chrome/browser/ui/gtk/gtk_theme_service.h"
#include "chrome/common/chrome_notification_types.h"
#include "content/public/browser/notification_details.h"
#include "content/public/browser/notification_source.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/render_widget_host_view.h"
#include "googleurl/src/gurl.h"
using content::RenderViewHost;
ExtensionPopupGtk* ExtensionPopupGtk::current_extension_popup_ = NULL;
// The minimum/maximum dimensions of the extension popup.
// The minimum is just a little larger than the size of a browser action button.
// The maximum is an arbitrary number that should be smaller than most screens.
const int ExtensionPopupGtk::kMinWidth = 25;
const int ExtensionPopupGtk::kMinHeight = 25;
const int ExtensionPopupGtk::kMaxWidth = 800;
const int ExtensionPopupGtk::kMaxHeight = 600;
ExtensionPopupGtk::ExtensionPopupGtk(Browser* browser,
ExtensionHost* host,
GtkWidget* anchor,
ShowAction show_action)
: browser_(browser),
bubble_(NULL),
host_(host),
anchor_(anchor),
weak_factory_(this) {
host_->view()->SetContainer(this);
being_inspected_ = show_action == SHOW_AND_INSPECT;
// If the host had somehow finished loading, then we'd miss the notification
// and not show. This seems to happen in single-process mode.
if (host->did_stop_loading()) {
ShowPopup();
} else {
registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_HOST_DID_STOP_LOADING,
content::Source<Profile>(host->profile()));
}
registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_HOST_VIEW_SHOULD_CLOSE,
content::Source<Profile>(host->profile()));
registrar_.Add(this, content::NOTIFICATION_DEVTOOLS_WINDOW_CLOSING,
content::Source<Profile>(host->profile()));
if (!being_inspected_) {
registrar_.Add(this, content::NOTIFICATION_DEVTOOLS_WINDOW_OPENING,
content::Source<Profile>(host->profile()));
}
}
ExtensionPopupGtk::~ExtensionPopupGtk() {
}
// static
void ExtensionPopupGtk::Show(const GURL& url, Browser* browser,
GtkWidget* anchor, ShowAction show_action) {
ExtensionProcessManager* manager =
browser->profile()->GetExtensionProcessManager();
DCHECK(manager);
if (!manager)
return;
ExtensionHost* host = manager->CreatePopupHost(url, browser);
// This object will delete itself when the bubble is closed.
new ExtensionPopupGtk(browser, host, anchor, show_action);
}
void ExtensionPopupGtk::Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
switch (type) {
case chrome::NOTIFICATION_EXTENSION_HOST_DID_STOP_LOADING:
if (content::Details<ExtensionHost>(host_.get()) == details)
ShowPopup();
break;
case chrome::NOTIFICATION_EXTENSION_HOST_VIEW_SHOULD_CLOSE:
if (content::Details<ExtensionHost>(host_.get()) == details)
DestroyPopup();
break;
case content::NOTIFICATION_DEVTOOLS_WINDOW_OPENING:
// Make sure it's the devtools window that is inspecting our popup.
if (content::Details<RenderViewHost>(host_->render_view_host()) !=
details)
break;
// Make sure that the popup won't go away when the inspector is activated.
if (bubble_)
bubble_->StopGrabbingInput();
being_inspected_ = true;
break;
case content::NOTIFICATION_DEVTOOLS_WINDOW_CLOSING:
// Make sure it's the devtools window that is inspecting our popup.
if (content::Details<RenderViewHost>(host_->render_view_host()) !=
details)
break;
// If the devtools window is closing, we post a task to ourselves to
// close the popup. This gives the devtools window a chance to finish
// detaching from the inspected RenderViewHost.
MessageLoop::current()->PostTask(
FROM_HERE,
base::Bind(&ExtensionPopupGtk::DestroyPopupWithoutResult,
weak_factory_.GetWeakPtr()));
break;
default:
NOTREACHED() << "Received unexpected notification";
}
}
void ExtensionPopupGtk::BubbleClosing(BubbleGtk* bubble,
bool closed_by_escape) {
current_extension_popup_ = NULL;
delete this;
}
void ExtensionPopupGtk::OnExtensionSizeChanged(
ExtensionViewGtk* view,
const gfx::Size& new_size) {
int width = std::max(kMinWidth, std::min(kMaxWidth, new_size.width()));
int height = std::max(kMinHeight, std::min(kMaxHeight, new_size.height()));
view->render_view_host()->GetView()->SetSize(gfx::Size(width, height));
gtk_widget_set_size_request(view->native_view(), width, height);
}
bool ExtensionPopupGtk::DestroyPopup() {
if (!bubble_) {
NOTREACHED();
return false;
}
bubble_->Close();
return true;
}
void ExtensionPopupGtk::ShowPopup() {
if (bubble_) {
NOTREACHED();
return;
}
if (being_inspected_)
DevToolsWindow::OpenDevToolsWindow(host_->render_view_host());
// Only one instance should be showing at a time. Get rid of the old one, if
// any. Typically, |current_extension_popup_| will be NULL, but it can be
// non-NULL if a browser action button is clicked while another extension
// popup's extension host is still loading.
if (current_extension_popup_)
current_extension_popup_->DestroyPopup();
current_extension_popup_ = this;
// We'll be in the upper-right corner of the window for LTR languages, so we
// want to put the arrow at the upper-right corner of the bubble to match the
// page and app menus.
BubbleGtk::ArrowLocationGtk arrow_location =
!base::i18n::IsRTL() ?
BubbleGtk::ARROW_LOCATION_TOP_RIGHT :
BubbleGtk::ARROW_LOCATION_TOP_LEFT;
bubble_ = BubbleGtk::Show(anchor_,
NULL,
host_->view()->native_view(),
arrow_location,
being_inspected_ ? 0 :
BubbleGtk::POPUP_WINDOW | BubbleGtk::GRAB_INPUT,
GtkThemeService::GetFrom(browser_->profile()),
this);
}
void ExtensionPopupGtk::DestroyPopupWithoutResult() {
DestroyPopup();
}
gfx::Rect ExtensionPopupGtk::GetViewBounds() {
GtkAllocation allocation;
gtk_widget_get_allocation(host_->view()->native_view(), &allocation);
return gfx::Rect(allocation);
}
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