chrome/browser/ui/views/extensions/extension_popup.cc

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