extension_popup.cc revision 116680a4aac90f2aa7413d9095a592090648e557 
1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "chrome/browser/ui/views/extensions/extension_popup.h"
6
7#include "base/bind.h"
8#include "chrome/browser/chrome_notification_types.h"
9#include "chrome/browser/devtools/devtools_window.h"
10#include "chrome/browser/extensions/extension_view_host.h"
11#include "chrome/browser/extensions/extension_view_host_factory.h"
12#include "chrome/browser/ui/browser.h"
13#include "chrome/browser/ui/tabs/tab_strip_model.h"
14#include "content/public/browser/devtools_agent_host.h"
15#include "content/public/browser/devtools_manager.h"
16#include "content/public/browser/notification_details.h"
17#include "content/public/browser/notification_source.h"
18#include "content/public/browser/render_view_host.h"
19#include "content/public/browser/web_contents.h"
20#include "ui/aura/window.h"
21#include "ui/gfx/insets.h"
22#include "ui/views/layout/fill_layout.h"
23#include "ui/views/widget/widget.h"
24#include "ui/wm/core/window_animations.h"
25#include "ui/wm/core/window_util.h"
26#include "ui/wm/public/activation_client.h"
27
28namespace {
29
30ExtensionViewViews* GetExtensionView(extensions::ExtensionViewHost* host) {
31  return static_cast<ExtensionViewViews*>(host->view());
32}
33
34}  // namespace
35
36// The minimum/maximum dimensions of the popup.
37// The minimum is just a little larger than the size of the button itself.
38// The maximum is an arbitrary number that should be smaller than most screens.
39const int ExtensionPopup::kMinWidth = 25;
40const int ExtensionPopup::kMinHeight = 25;
41const int ExtensionPopup::kMaxWidth = 800;
42const int ExtensionPopup::kMaxHeight = 600;
43
44ExtensionPopup::ExtensionPopup(extensions::ExtensionViewHost* host,
45                               views::View* anchor_view,
46                               views::BubbleBorder::Arrow arrow,
47                               ShowAction show_action)
48    : BubbleDelegateView(anchor_view, arrow),
49      host_(host),
50      devtools_callback_(base::Bind(
51          &ExtensionPopup::OnDevToolsStateChanged, base::Unretained(this))),
52      widget_initialized_(false) {
53  inspect_with_devtools_ = show_action == SHOW_AND_INSPECT;
54  // Adjust the margin so that contents fit better.
55  const int margin = views::BubbleBorder::GetCornerRadius() / 2;
56  set_margins(gfx::Insets(margin, margin, margin, margin));
57  SetLayoutManager(new views::FillLayout());
58  AddChildView(GetExtensionView(host));
59  GetExtensionView(host)->set_container(this);
60  // ExtensionPopup closes itself on very specific de-activation conditions.
61  set_close_on_deactivate(false);
62
63  // Wait to show the popup until the contained host finishes loading.
64  registrar_.Add(this, content::NOTIFICATION_LOAD_COMPLETED_MAIN_FRAME,
65                 content::Source<content::WebContents>(host->host_contents()));
66
67  // Listen for the containing view calling window.close();
68  registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_HOST_VIEW_SHOULD_CLOSE,
69      content::Source<content::BrowserContext>(host->browser_context()));
70  content::DevToolsManager::GetInstance()->AddAgentStateCallback(
71      devtools_callback_);
72
73  GetExtensionView(host)->GetBrowser()->tab_strip_model()->AddObserver(this);
74}
75
76ExtensionPopup::~ExtensionPopup() {
77  content::DevToolsManager::GetInstance()->RemoveAgentStateCallback(
78      devtools_callback_);
79
80  GetExtensionView(
81      host_.get())->GetBrowser()->tab_strip_model()->RemoveObserver(this);
82}
83
84void ExtensionPopup::Observe(int type,
85                             const content::NotificationSource& source,
86                             const content::NotificationDetails& details) {
87  switch (type) {
88    case content::NOTIFICATION_LOAD_COMPLETED_MAIN_FRAME:
89      DCHECK_EQ(host()->host_contents(),
90                content::Source<content::WebContents>(source).ptr());
91      // Show when the content finishes loading and its width is computed.
92      ShowBubble();
93      break;
94    case chrome::NOTIFICATION_EXTENSION_HOST_VIEW_SHOULD_CLOSE:
95      // If we aren't the host of the popup, then disregard the notification.
96      if (content::Details<extensions::ExtensionHost>(host()) == details)
97        GetWidget()->Close();
98      break;
99    default:
100      NOTREACHED() << L"Received unexpected notification";
101  }
102}
103
104void ExtensionPopup::OnDevToolsStateChanged(
105    content::DevToolsAgentHost* agent_host,
106    bool attached) {
107  // First check that the devtools are being opened on this popup.
108  if (host()->render_view_host() != agent_host->GetRenderViewHost())
109    return;
110
111  if (attached) {
112    // Set inspect_with_devtools_ so the popup will be kept open while
113    // the devtools are open.
114    inspect_with_devtools_ = true;
115  } else {
116    // Widget::Close posts a task, which should give the devtools window a
117    // chance to finish detaching from the inspected RenderViewHost.
118    GetWidget()->Close();
119  }
120}
121
122void ExtensionPopup::OnExtensionSizeChanged(ExtensionViewViews* view) {
123  SizeToContents();
124}
125
126gfx::Size ExtensionPopup::GetPreferredSize() const {
127  // Constrain the size to popup min/max.
128  gfx::Size sz = views::View::GetPreferredSize();
129  sz.set_width(std::max(kMinWidth, std::min(kMaxWidth, sz.width())));
130  sz.set_height(std::max(kMinHeight, std::min(kMaxHeight, sz.height())));
131  return sz;
132}
133
134void ExtensionPopup::ViewHierarchyChanged(
135  const ViewHierarchyChangedDetails& details) {
136  // TODO(msw): Find any remaining crashes related to http://crbug.com/327776
137  // No view hierarchy changes are expected if the widget no longer exists.
138  widget_initialized_ |= details.child == this && details.is_add && GetWidget();
139  CHECK(GetWidget() || !widget_initialized_);
140}
141
142void ExtensionPopup::OnWidgetDestroying(views::Widget* widget) {
143  BubbleDelegateView::OnWidgetDestroying(widget);
144  aura::Window* bubble_window = GetWidget()->GetNativeWindow();
145  aura::client::ActivationClient* activation_client =
146      aura::client::GetActivationClient(bubble_window->GetRootWindow());
147  // If the popup was being inspected with devtools and the browser window was
148  // closed, then the root window and activation client are already destroyed.
149  if (activation_client)
150    activation_client->RemoveObserver(this);
151}
152
153void ExtensionPopup::OnWidgetActivationChanged(views::Widget* widget,
154                                               bool active) {
155  // TODO(msw): Find any remaining crashes related to http://crbug.com/327776
156  // No calls are expected if the widget isn't initialized or no longer exists.
157  CHECK(widget_initialized_);
158  CHECK(GetWidget());
159
160  // Close on anchor window activation (ie. user clicked the browser window).
161  if (!inspect_with_devtools_ && widget && active &&
162      widget->GetNativeWindow() == anchor_widget()->GetNativeWindow())
163    GetWidget()->Close();
164}
165
166void ExtensionPopup::OnWindowActivated(aura::Window* gained_active,
167                                       aura::Window* lost_active) {
168  // TODO(msw): Find any remaining crashes related to http://crbug.com/327776
169  // No calls are expected if the widget isn't initialized or no longer exists.
170  CHECK(widget_initialized_);
171  CHECK(GetWidget());
172
173  // Close on anchor window activation (ie. user clicked the browser window).
174  // DesktopNativeWidgetAura does not trigger the expected browser widget
175  // [de]activation events when activating widgets in its own root window.
176  // This additional check handles those cases. See: http://crbug.com/320889
177  if (!inspect_with_devtools_ &&
178      gained_active == anchor_widget()->GetNativeWindow())
179    GetWidget()->Close();
180}
181
182void ExtensionPopup::ActiveTabChanged(content::WebContents* old_contents,
183                                      content::WebContents* new_contents,
184                                      int index,
185                                      int reason) {
186  GetWidget()->Close();
187}
188
189// static
190ExtensionPopup* ExtensionPopup::ShowPopup(const GURL& url,
191                                          Browser* browser,
192                                          views::View* anchor_view,
193                                          views::BubbleBorder::Arrow arrow,
194                                          ShowAction show_action) {
195  extensions::ExtensionViewHost* host =
196      extensions::ExtensionViewHostFactory::CreatePopupHost(url, browser);
197  ExtensionPopup* popup = new ExtensionPopup(host, anchor_view, arrow,
198      show_action);
199  views::BubbleDelegateView::CreateBubble(popup);
200
201  gfx::NativeView native_view = popup->GetWidget()->GetNativeView();
202  wm::SetWindowVisibilityAnimationType(
203      native_view, wm::WINDOW_VISIBILITY_ANIMATION_TYPE_VERTICAL);
204  wm::SetWindowVisibilityAnimationVerticalPosition(native_view, -3.0f);
205
206  // If the host had somehow finished loading, then we'd miss the notification
207  // and not show.  This seems to happen in single-process mode.
208  if (host->did_stop_loading())
209    popup->ShowBubble();
210
211  aura::Window* bubble_window = popup->GetWidget()->GetNativeWindow();
212  aura::client::ActivationClient* activation_client =
213      aura::client::GetActivationClient(bubble_window->GetRootWindow());
214  activation_client->AddObserver(popup);
215
216  return popup;
217}
218
219void ExtensionPopup::ShowBubble() {
220  GetWidget()->Show();
221
222  // Focus on the host contents when the bubble is first shown.
223  host()->host_contents()->Focus();
224
225  if (inspect_with_devtools_) {
226    DevToolsWindow::OpenDevToolsWindow(host()->render_view_host(),
227        DevToolsToggleAction::ShowConsole());
228  }
229}
230