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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/views/extensions/extension_popup.h"
#include "base/bind.h"
#include "chrome/browser/chrome_notification_types.h"
#include "chrome/browser/devtools/devtools_window.h"
#include "chrome/browser/extensions/extension_view_host.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/tabs/tab_strip_model.h"
#include "content/public/browser/devtools_agent_host.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/web_contents.h"
#include "ui/gfx/geometry/insets.h"
#include "ui/views/layout/fill_layout.h"
#include "ui/views/widget/widget.h"
namespace {
// Override the default margin provided by views::kPanel*Margin so that the
// hosted WebContents fill more of the bubble. However, it can't fill the entire
// bubble since that would draw over the rounded corners and make the bubble
// square. See http://crbug.com/593203.
const int kBubbleMargin = 2;
ExtensionViewViews* GetExtensionView(extensions::ExtensionViewHost* host) {
return static_cast<ExtensionViewViews*>(host->view());
}
} // namespace
// The minimum/maximum dimensions of the popup.
// The minimum is just a little larger than the size of the button itself.
// The maximum is an arbitrary number that should be smaller than most screens.
const int ExtensionPopup::kMinWidth = 25;
const int ExtensionPopup::kMinHeight = 25;
const int ExtensionPopup::kMaxWidth = 800;
const int ExtensionPopup::kMaxHeight = 600;
#if !defined(USE_AURA)
// static
ExtensionPopup* ExtensionPopup::Create(extensions::ExtensionViewHost* host,
views::View* anchor_view,
views::BubbleBorder::Arrow arrow,
ShowAction show_action) {
auto popup = new ExtensionPopup(host, anchor_view, arrow, show_action);
views::BubbleDialogDelegateView::CreateBubble(popup);
return popup;
}
#endif
ExtensionPopup::ExtensionPopup(extensions::ExtensionViewHost* host,
views::View* anchor_view,
views::BubbleBorder::Arrow arrow,
ShowAction show_action)
: BubbleDialogDelegateView(anchor_view, arrow),
host_(host),
devtools_callback_(base::Bind(
&ExtensionPopup::OnDevToolsStateChanged, base::Unretained(this))),
widget_initialized_(false) {
inspect_with_devtools_ = show_action == SHOW_AND_INSPECT;
set_margins(gfx::Insets(kBubbleMargin));
SetLayoutManager(new views::FillLayout());
AddChildView(GetExtensionView(host));
GetExtensionView(host)->set_container(this);
// ExtensionPopup closes itself on very specific de-activation conditions.
set_close_on_deactivate(false);
// Listen for the containing view calling window.close();
registrar_.Add(
this,
extensions::NOTIFICATION_EXTENSION_HOST_VIEW_SHOULD_CLOSE,
content::Source<content::BrowserContext>(host->browser_context()));
content::DevToolsAgentHost::AddAgentStateCallback(devtools_callback_);
GetExtensionView(host)->GetBrowser()->tab_strip_model()->AddObserver(this);
// 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_->has_loaded_once()) {
ShowBubble();
} else {
// Wait to show the popup until the contained host finishes loading.
registrar_.Add(this,
content::NOTIFICATION_LOAD_COMPLETED_MAIN_FRAME,
content::Source<content::WebContents>(
host_->host_contents()));
}
}
ExtensionPopup::~ExtensionPopup() {
content::DevToolsAgentHost::RemoveAgentStateCallback(devtools_callback_);
GetExtensionView(
host_.get())->GetBrowser()->tab_strip_model()->RemoveObserver(this);
}
int ExtensionPopup::GetDialogButtons() const {
return ui::DIALOG_BUTTON_NONE;
}
void ExtensionPopup::Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
switch (type) {
case content::NOTIFICATION_LOAD_COMPLETED_MAIN_FRAME:
DCHECK_EQ(host()->host_contents(),
content::Source<content::WebContents>(source).ptr());
// Show when the content finishes loading and its width is computed.
ShowBubble();
break;
case extensions::NOTIFICATION_EXTENSION_HOST_VIEW_SHOULD_CLOSE:
// If we aren't the host of the popup, then disregard the notification.
if (content::Details<extensions::ExtensionHost>(host()) == details)
GetWidget()->Close();
break;
default:
NOTREACHED() << L"Received unexpected notification";
}
}
void ExtensionPopup::OnDevToolsStateChanged(
content::DevToolsAgentHost* agent_host,
bool attached) {
// First check that the devtools are being opened on this popup.
if (host()->host_contents() != agent_host->GetWebContents())
return;
if (attached) {
// Set inspect_with_devtools_ so the popup will be kept open while
// the devtools are open.
inspect_with_devtools_ = true;
} else {
// Widget::Close posts a task, which should give the devtools window a
// chance to finish detaching from the inspected RenderViewHost.
GetWidget()->Close();
}
}
void ExtensionPopup::OnExtensionSizeChanged(ExtensionViewViews* view) {
SizeToContents();
}
gfx::Size ExtensionPopup::GetPreferredSize() const {
// Constrain the size to popup min/max.
gfx::Size sz = views::View::GetPreferredSize();
sz.set_width(std::max(kMinWidth, std::min(kMaxWidth, sz.width())));
sz.set_height(std::max(kMinHeight, std::min(kMaxHeight, sz.height())));
return sz;
}
void ExtensionPopup::ViewHierarchyChanged(
const ViewHierarchyChangedDetails& details) {
// TODO(msw): Find any remaining crashes related to http://crbug.com/327776
// No view hierarchy changes are expected if the widget no longer exists.
widget_initialized_ |= details.child == this && details.is_add && GetWidget();
CHECK(GetWidget() || !widget_initialized_);
}
void ExtensionPopup::OnWidgetActivationChanged(views::Widget* widget,
bool active) {
if (active && widget == anchor_widget())
OnAnchorWindowActivation();
}
void ExtensionPopup::ActiveTabChanged(content::WebContents* old_contents,
content::WebContents* new_contents,
int index,
int reason) {
GetWidget()->Close();
}
void ExtensionPopup::OnAnchorWindowActivation() {
// TODO(msw): Find any remaining crashes related to http://crbug.com/327776
// No calls are expected if the widget isn't initialized or no longer exists.
CHECK(widget_initialized_);
CHECK(GetWidget());
if (!inspect_with_devtools_)
GetWidget()->Close();
}
// static
ExtensionPopup* ExtensionPopup::ShowPopup(
scoped_ptr<extensions::ExtensionViewHost> host,
views::View* anchor_view,
views::BubbleBorder::Arrow arrow,
ShowAction show_action) {
return ExtensionPopup::Create(
host.release(), anchor_view, arrow, show_action);
}
void ExtensionPopup::ShowBubble() {
GetWidget()->Show();
// Focus on the host contents when the bubble is first shown.
host()->host_contents()->Focus();
if (inspect_with_devtools_) {
DevToolsWindow::OpenDevToolsWindow(host()->host_contents(),
DevToolsToggleAction::ShowConsole());
}
}
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