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Unified Diff: chrome/browser/aeropeek_manager.cc

Issue 10368027: Remove Aero Peek Tabs code. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: '' Created 8 years, 7 months ago
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Index: chrome/browser/aeropeek_manager.cc
diff --git a/chrome/browser/aeropeek_manager.cc b/chrome/browser/aeropeek_manager.cc
deleted file mode 100644
index e00242a29f78b6a09c9674501abca455b68f7b1c..0000000000000000000000000000000000000000
--- a/chrome/browser/aeropeek_manager.cc
+++ /dev/null
@@ -1,1031 +0,0 @@
-// 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/aeropeek_manager.h"
-
-#include <dwmapi.h>
-#include <shobjidl.h>
-
-#include "base/bind.h"
-#include "base/command_line.h"
-#include "base/scoped_native_library.h"
-#include "base/synchronization/waitable_event.h"
-#include "base/win/scoped_comptr.h"
-#include "base/win/scoped_gdi_object.h"
-#include "base/win/scoped_hdc.h"
-#include "base/win/windows_version.h"
-#include "chrome/browser/app_icon_win.h"
-#include "chrome/browser/browser_process.h"
-#include "chrome/browser/favicon/favicon_tab_helper.h"
-#include "chrome/browser/sessions/restore_tab_helper.h"
-#include "chrome/browser/tab_contents/thumbnail_generator.h"
-#include "chrome/browser/tabs/tab_strip_model.h"
-#include "chrome/browser/ui/browser_list.h"
-#include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
-#include "chrome/common/chrome_constants.h"
-#include "chrome/common/chrome_switches.h"
-#include "chrome/installer/util/browser_distribution.h"
-#include "content/public/browser/browser_thread.h"
-#include "content/public/browser/render_view_host.h"
-#include "content/public/browser/render_widget_host_view.h"
-#include "content/public/browser/web_contents.h"
-#include "content/public/browser/web_contents_delegate.h"
-#include "content/public/browser/web_contents_view.h"
-#include "skia/ext/image_operations.h"
-#include "skia/ext/platform_canvas.h"
-#include "third_party/skia/include/core/SkBitmap.h"
-#include "ui/base/win/shell.h"
-#include "ui/base/win/window_impl.h"
-#include "ui/gfx/gdi_util.h"
-#include "ui/gfx/icon_util.h"
-#include "ui/views/widget/native_widget_win.h"
-
-#pragma comment(lib, "dwmapi.lib")
-
-using content::BrowserThread;
-using content::WebContents;
-
-namespace {
-
-// Sends a thumbnail bitmap to Windows. Windows assumes this function is called
-// when a WM_DWMSENDICONICTHUMBNAIL message sent to a place-holder window. We
-// can use DwmInvalidateIconicBitmap() to force Windows to send the message.
-HRESULT CallDwmSetIconicThumbnail(HWND window, HBITMAP bitmap, DWORD flags) {
- FilePath dwmapi_path(base::GetNativeLibraryName(L"dwmapi"));
- base::ScopedNativeLibrary dwmapi(dwmapi_path);
-
- typedef HRESULT (STDAPICALLTYPE *DwmSetIconicThumbnailProc)(
- HWND, HBITMAP, DWORD);
- DwmSetIconicThumbnailProc dwm_set_iconic_thumbnail =
- static_cast<DwmSetIconicThumbnailProc>(
- dwmapi.GetFunctionPointer("DwmSetIconicThumbnail"));
-
- if (!dwm_set_iconic_thumbnail)
- return E_FAIL;
-
- return dwm_set_iconic_thumbnail(window, bitmap, flags);
-}
-
-// Sends a preview bitmap to Windows. Windows assumes this function is called
-// when a WM_DWMSENDICONICLIVEPREVIEWBITMAP message sent to a place-holder
-// window.
-HRESULT CallDwmSetIconicLivePreviewBitmap(HWND window,
- HBITMAP bitmap,
- POINT* client,
- DWORD flags) {
- FilePath dwmapi_path(base::GetNativeLibraryName(L"dwmapi"));
- base::ScopedNativeLibrary dwmapi(dwmapi_path);
-
- typedef HRESULT (STDAPICALLTYPE *DwmSetIconicLivePreviewBitmapProc)(
- HWND, HBITMAP, POINT*, DWORD);
- DwmSetIconicLivePreviewBitmapProc dwm_set_live_preview_bitmap =
- static_cast<DwmSetIconicLivePreviewBitmapProc>(
- dwmapi.GetFunctionPointer("DwmSetIconicLivePreviewBitmap"));
-
- if (!dwm_set_live_preview_bitmap)
- return E_FAIL;
-
- return dwm_set_live_preview_bitmap(window, bitmap, client, flags);
-}
-
-// Invalidates the thumbnail image of the specified place-holder window. (See
-// the comments in CallDwmSetIconicThumbnai()).
-HRESULT CallDwmInvalidateIconicBitmaps(HWND window) {
- FilePath dwmapi_path(base::GetNativeLibraryName(L"dwmapi"));
- base::ScopedNativeLibrary dwmapi(dwmapi_path);
-
- typedef HRESULT (STDAPICALLTYPE *DwmInvalidateIconicBitmapsProc)(HWND);
- DwmInvalidateIconicBitmapsProc dwm_invalidate_iconic_bitmaps =
- static_cast<DwmInvalidateIconicBitmapsProc>(
- dwmapi.GetFunctionPointer("DwmInvalidateIconicBitmaps"));
-
- if (!dwm_invalidate_iconic_bitmaps)
- return E_FAIL;
-
- return dwm_invalidate_iconic_bitmaps(window);
-}
-
-void CopyFromBackingStoreComplete(bool* result, bool* done, bool succeeded) {
- *result = succeeded;
- *done = true;
-}
-
-} // namespace
-
-namespace {
-
-// These callbacks indirectly access the specified tab through the
-// AeroPeekWindowDelegate interface to prevent these tasks from accessing the
-// deleted tabs.
-
-// A callback that registers a thumbnail window as a child of the specified
-// browser application.
-void RegisterThumbnailCallback(HWND frame_window, HWND window, bool active) {
- // Set the App ID of the browser for this place-holder window to tell
- // that this window is a child of the browser application, i.e. to tell
- // that this thumbnail window should be displayed when we hover the
- // browser icon in the taskbar.
- // TODO(mattm): This should use ShellIntegration::GetChromiumAppId to work
- // properly with multiple profiles.
- ui::win::SetAppIdForWindow(
- BrowserDistribution::GetDistribution()->GetBrowserAppId(), window);
-
- // Register this place-holder window to the taskbar as a child of
- // the browser window and add it to the end of its tab list.
- // Correctly, this registration should be called after this browser window
- // receives a registered window message "TaskbarButtonCreated", which
- // means that Windows creates a taskbar button for this window in its
- // taskbar. But it seems to be OK to register it without checking the
- // message.
- // TODO(hbono): we need to check this registered message?
- base::win::ScopedComPtr<ITaskbarList3> taskbar;
- if (FAILED(taskbar.CreateInstance(CLSID_TaskbarList, NULL,
- CLSCTX_INPROC_SERVER)) ||
- FAILED(taskbar->HrInit()) ||
- FAILED(taskbar->RegisterTab(window, frame_window)) ||
- FAILED(taskbar->SetTabOrder(window, NULL)))
- return;
- if (active)
- taskbar->SetTabActive(window, frame_window, 0);
-}
-
-// Calculates the thumbnail size sent to Windows so we can preserve the pixel
-// aspect-ratio of the source bitmap. Since Windows returns an error when we
-// send an image bigger than the given size, we decrease either the thumbnail
-// width or the thumbnail height so we can fit the longer edge of the source
-// window.
-void GetThumbnailSize(const gfx::Size& aeropeek_size, int width, int height,
- gfx::Size* output) {
- float thumbnail_width = static_cast<float>(aeropeek_size.width());
- float thumbnail_height = static_cast<float>(aeropeek_size.height());
- float source_width = static_cast<float>(width);
- float source_height = static_cast<float>(height);
- DCHECK(source_width && source_height);
-
- float ratio_width = thumbnail_width / source_width;
- float ratio_height = thumbnail_height / source_height;
- if (ratio_width > ratio_height) {
- thumbnail_width = source_width * ratio_height;
- } else {
- thumbnail_height = source_height * ratio_width;
- }
-
- output->set_width(static_cast<int>(thumbnail_width));
- output->set_height(static_cast<int>(thumbnail_height));
-}
-
-// Returns a pixel of the specified bitmap. If this bitmap is a dummy bitmap,
-// this function returns an opaque white pixel instead.
-int GetPixel(const SkBitmap& bitmap, int x, int y) {
- const int* tab_pixels = reinterpret_cast<const int*>(bitmap.getPixels());
- if (!tab_pixels)
- return 0xFFFFFFFF;
- return tab_pixels[y * bitmap.width() + x];
-}
-
-// A callback which creates a thumbnail image used by AeroPeek and sends it to
-// Windows.
-void SendThumbnailCallback(
- HWND aeropeek_window, const gfx::Rect& content_bounds,
- const gfx::Size& aeropeek_size, const SkBitmap& tab_bitmap,
- base::WaitableEvent* ready) {
- // Calculate the size of the aeropeek thumbnail and resize the tab bitmap
- // to the size. When the given bitmap is an empty bitmap, we create a dummy
- // bitmap from the content-area rectangle to create a DIB. (We don't need to
- // allocate pixels for this case since we don't use them.)
- gfx::Size thumbnail_size;
- SkBitmap thumbnail_bitmap;
-
- if (tab_bitmap.isNull() || tab_bitmap.empty()) {
- GetThumbnailSize(
- aeropeek_size, content_bounds.width(), content_bounds.height(),
- &thumbnail_size);
-
- thumbnail_bitmap.setConfig(SkBitmap::kARGB_8888_Config,
- thumbnail_size.width(), thumbnail_size.height());
- } else {
- GetThumbnailSize(aeropeek_size, tab_bitmap.width(), tab_bitmap.height(),
- &thumbnail_size);
-
- thumbnail_bitmap = skia::ImageOperations::Resize(
- tab_bitmap, skia::ImageOperations::RESIZE_LANCZOS3,
- thumbnail_size.width(), thumbnail_size.height());
- }
-
- // Create a DIB, copy the resized image, and send the DIB to Windows.
- // We can delete this DIB after sending it to Windows since Windows creates
- // a copy of the DIB and use it.
- base::win::ScopedCreateDC hdc(CreateCompatibleDC(NULL));
- if (!hdc.Get()) {
- LOG(ERROR) << "cannot create a memory DC: " << GetLastError();
- return;
- }
-
- BITMAPINFOHEADER header;
- gfx::CreateBitmapHeader(thumbnail_size.width(), thumbnail_size.height(),
- &header);
-
- void* bitmap_data = NULL;
- base::win::ScopedBitmap bitmap(
- CreateDIBSection(hdc, reinterpret_cast<BITMAPINFO*>(&header),
- DIB_RGB_COLORS, &bitmap_data, NULL, 0));
-
- if (!bitmap.Get() || !bitmap_data) {
- LOG(ERROR) << "cannot create a bitmap: " << GetLastError();
- return;
- }
-
- SkAutoLockPixels lock(thumbnail_bitmap);
- int* content_pixels = reinterpret_cast<int*>(bitmap_data);
- for (int y = 0; y < thumbnail_size.height(); ++y) {
- for (int x = 0; x < thumbnail_size.width(); ++x) {
- content_pixels[y * thumbnail_size.width() + x] =
- GetPixel(thumbnail_bitmap, x, y);
- }
- }
-
- HRESULT result = CallDwmSetIconicThumbnail(aeropeek_window, bitmap, 0);
- if (FAILED(result))
- LOG(ERROR) << "cannot set a tab thumbnail: " << result;
-
- ready->Signal();
-}
-
-int GetTabPixel(const SkBitmap& tab_bitmap, int x, int y) {
- // Return the opaque while pixel to prevent old foreground tab from being
- // shown when we cannot get the specified pixel.
- const int* tab_pixels = reinterpret_cast<int*>(tab_bitmap.getPixels());
- if (!tab_pixels || x >= tab_bitmap.width() || y >= tab_bitmap.height())
- return 0xFFFFFFFF;
-
- // DWM uses alpha values to distinguish opaque colors and transparent ones.
- // Set the alpha value of this source pixel to prevent the original window
- // from being shown through.
- return 0xFF000000 | tab_pixels[y * tab_bitmap.width() + x];
-}
-
-// A task which creates a preview image used by AeroPeek and sends it to
-// Windows.
-// This task becomes more complicated than SendThumbnailTask because this task
-// calculates the rectangle of the user-perceived content area (infobars +
-// content area) so Windows can paste the preview image on it.
-// This task is used if an AeroPeek window receives a
-// WM_DWMSENDICONICLIVEPREVIEWBITMAP message.
-void SendLivePreviewCallback(
- HWND aeropeek_window, const gfx::Rect& content_bounds,
- const SkBitmap& tab_bitmap) {
- // Create a DIB for the user-perceived content area of the tab, copy the
- // tab image into the DIB, and send it to Windows.
- // We don't need to paste this tab image onto the frame image since Windows
- // automatically pastes it for us.
- base::win::ScopedCreateDC hdc(CreateCompatibleDC(NULL));
- if (!hdc.Get()) {
- LOG(ERROR) << "cannot create a memory DC: " << GetLastError();
- return;
- }
-
- BITMAPINFOHEADER header;
- gfx::CreateBitmapHeader(content_bounds.width(), content_bounds.height(),
- &header);
-
- void* bitmap_data = NULL;
- base::win::ScopedBitmap bitmap(
- CreateDIBSection(hdc.Get(), reinterpret_cast<BITMAPINFO*>(&header),
- DIB_RGB_COLORS, &bitmap_data, NULL, 0));
- if (!bitmap.Get() || !bitmap_data) {
- LOG(ERROR) << "cannot create a bitmap: " << GetLastError();
- return;
- }
-
- // Copy the tab image onto the DIB.
- SkAutoLockPixels lock(tab_bitmap);
- int* content_pixels = reinterpret_cast<int*>(bitmap_data);
- for (int y = 0; y < content_bounds.height(); ++y) {
- for (int x = 0; x < content_bounds.width(); ++x)
- content_pixels[y * content_bounds.width() + x] =
- GetTabPixel(tab_bitmap, x, y);
- }
-
- // Send the preview image to Windows.
- // We can set its offset to the top left corner of the user-perceived
- // content area so Windows can paste this bitmap onto the correct
- // position.
- POINT content_offset = {content_bounds.x(), content_bounds.y()};
- HRESULT result = CallDwmSetIconicLivePreviewBitmap(
- aeropeek_window, bitmap, &content_offset, 0);
- if (FAILED(result))
- LOG(ERROR) << "cannot send a content image: " << result;
-}
-
-} // namespace
-
-// A class which implements a place-holder window used by AeroPeek.
-// The major work of this class are:
-// * Updating the status of Tab Thumbnails;
-// * Receiving messages from Windows, and;
-// * Translating received messages for TabStrip.
-// This class is used by the AeroPeekManager class, which is a proxy
-// between TabStrip and Windows 7.
-class AeroPeekWindow : public ui::WindowImpl {
- public:
- AeroPeekWindow(HWND frame_window,
- AeroPeekWindowDelegate* delegate,
- int tab_id,
- bool tab_active,
- const std::wstring& title,
- const SkBitmap& favicon_bitmap);
- ~AeroPeekWindow();
-
- // Activates or deactivates this window.
- // This window uses this information not only for highlighting the selected
- // tab when Windows shows the thumbnail list, but also for preventing us
- // from rendering AeroPeek images for deactivated windows so often.
- void Activate();
- void Deactivate();
-
- // Updates the image of this window.
- // When the AeroPeekManager class calls this function, this window starts
- // a task which updates its thumbnail image.
- // NOTE: to prevent sending lots of tasks that update the thumbnail images
- // and hurt the system performance, we post a task only when |is_loading| is
- // false for non-active tabs. (On the other hand, we always post an update
- // task for an active tab as IE8 does.)
- void Update(bool is_loading);
-
- // Destroys this window.
- // This function removes this window from the thumbnail list and deletes
- // all the resources attached to this window, i.e. this object is not valid
- // any longer after calling this function.
- void Destroy();
-
- // Updates the title of this window.
- // This function just sends a WM_SETTEXT message to update the window title.
- void SetTitle(const std::wstring& title);
-
- // Updates the icon used for AeroPeek. Unlike SetTitle(), this function just
- // saves a copy of the given bitmap since it takes time to create a Windows
- // icon from this bitmap set it as the window icon. We will create a Windows
- // when Windows sends a WM_GETICON message to retrieve it.
- void SetFavicon(const SkBitmap& favicon);
-
- // Returns the tab ID associated with this window.
- int tab_id() { return tab_id_; }
-
- // Message handlers.
- BEGIN_MSG_MAP_EX(TabbedThumbnailWindow)
- MESSAGE_HANDLER_EX(WM_DWMSENDICONICTHUMBNAIL, OnDwmSendIconicThumbnail)
- MESSAGE_HANDLER_EX(WM_DWMSENDICONICLIVEPREVIEWBITMAP,
- OnDwmSendIconicLivePreviewBitmap)
-
- MSG_WM_ACTIVATE(OnActivate)
- MSG_WM_CLOSE(OnClose)
- MSG_WM_CREATE(OnCreate)
- MSG_WM_GETICON(OnGetIcon)
- END_MSG_MAP()
-
- private:
- // Updates the thumbnail image of this window.
- // This function is a wrapper function of CallDwmInvalidateIconicBitmaps()
- // but it invalidates the thumbnail only when |ready_| is signaled to prevent
- // us from posting two or more tasks.
- void UpdateThumbnail();
-
- // Returns the user-perceived content area.
- gfx::Rect GetContentBounds() const;
-
- // Message-handler functions.
- // Called when a window has been created.
- LRESULT OnCreate(LPCREATESTRUCT create_struct);
-
- // Called when this thumbnail window is activated, i.e. a user clicks this
- // thumbnail window.
- void OnActivate(UINT action, BOOL minimized, HWND window);
-
- // Called when this thumbnail window is closed, i.e. a user clicks the close
- // button of this thumbnail window.
- void OnClose();
-
- // Called when Windows needs a thumbnail image for this thumbnail window.
- // Windows can send a WM_DWMSENDICONICTHUMBNAIL message anytime when it
- // needs the thumbnail bitmap for this place-holder window (e.g. when we
- // register this place-holder window to Windows, etc.)
- // When this window receives a WM_DWMSENDICONICTHUMBNAIL message, it HAS TO
- // create a thumbnail bitmap and send it to Windows through a
- // DwmSendIconicThumbnail() call. (Windows shows a "page-loading" animation
- // while it waits for a thumbnail bitmap.)
- LRESULT OnDwmSendIconicThumbnail(UINT message,
- WPARAM wparam,
- LPARAM lparam);
-
- // Called when Windows needs a preview image for this thumbnail window.
- // Same as above, Windows can send a WM_DWMSENDICONICLIVEPREVIEWBITMAP
- // message anytime when it needs a preview bitmap and we have to create and
- // send the bitmap when it needs it.
- LRESULT OnDwmSendIconicLivePreviewBitmap(UINT message,
- WPARAM wparam,
- LPARAM lparam);
-
- // Called when Windows needs an icon for this thumbnail window.
- // Windows sends a WM_GETICON message with ICON_SMALL when it needs an
- // AeroPeek icon. we handle WM_GETICON messages by ourselves so we can create
- // a custom icon from a favicon only when Windows need it.
- HICON OnGetIcon(UINT index);
-
- private:
- // An application window which owns this tab.
- // We show this thumbnail image of this window when a user hovers a mouse
- // cursor onto the taskbar icon of this application window.
- HWND frame_window_;
-
- // An interface which dispatches events received from Window.
- // This window notifies events received from Windows to TabStrip through
- // this interface.
- // We should not directly access WebContents members since Windows may send
- // AeroPeek events to a tab closed by Chrome.
- // To prevent such race condition, we get access to WebContents through
- // AeroPeekManager.
- AeroPeekWindowDelegate* delegate_;
-
- // A tab ID associated with this window.
- int tab_id_;
-
- // A flag that represents whether or not this tab is active.
- // This flag is used for preventing us from updating the thumbnail images
- // when this window is not active.
- bool tab_active_;
-
- // An event that represents whether or not we can post a task which updates
- // the thumbnail image of this window.
- // We post a task only when this event is signaled.
- base::WaitableEvent ready_to_update_thumbnail_;
-
- // The title of this tab.
- std::wstring title_;
-
- // The favicon for this tab.
- SkBitmap favicon_bitmap_;
- base::win::ScopedHICON favicon_;
-
- // The icon used by the frame window.
- // This icon is used when this tab doesn't have a favicon.
- HICON frame_icon_;
-
- DISALLOW_COPY_AND_ASSIGN(AeroPeekWindow);
-};
-
-AeroPeekWindow::AeroPeekWindow(HWND frame_window,
- AeroPeekWindowDelegate* delegate,
- int tab_id,
- bool tab_active,
- const std::wstring& title,
- const SkBitmap& favicon_bitmap)
- : frame_window_(frame_window),
- delegate_(delegate),
- tab_id_(tab_id),
- tab_active_(tab_active),
- ready_to_update_thumbnail_(false, true),
- title_(title),
- favicon_bitmap_(favicon_bitmap),
- frame_icon_(NULL) {
- // Set the class styles and window styles for this thumbnail window.
- // An AeroPeek window should be a tool window. (Otherwise,
- // Windows doesn't send WM_DWMSENDICONICTHUMBNAIL messages.)
- set_initial_class_style(0);
- set_window_style(WS_POPUP | WS_BORDER | WS_SYSMENU | WS_CAPTION);
- set_window_ex_style(WS_EX_TOOLWINDOW | WS_EX_NOACTIVATE);
-}
-
-AeroPeekWindow::~AeroPeekWindow() {
-}
-
-void AeroPeekWindow::Activate() {
- tab_active_ = true;
-
- // Create a place-holder window and add it to the tab list if it has not been
- // created yet. (This case happens when we re-attached a detached window.)
- if (!IsWindow(hwnd())) {
- Update(false);
- return;
- }
-
- // Notify Windows to set the thumbnail focus to this window.
- base::win::ScopedComPtr<ITaskbarList3> taskbar;
- HRESULT result = taskbar.CreateInstance(CLSID_TaskbarList, NULL,
- CLSCTX_INPROC_SERVER);
- if (FAILED(result)) {
- LOG(ERROR) << "failed creating an ITaskbarList3 interface.";
- return;
- }
-
- result = taskbar->HrInit();
- if (FAILED(result)) {
- LOG(ERROR) << "failed initializing an ITaskbarList3 interface.";
- return;
- }
-
- result = taskbar->ActivateTab(hwnd());
- if (FAILED(result)) {
- LOG(ERROR) << "failed activating a thumbnail window.";
- return;
- }
-
- // Update the thumbnail image to the up-to-date one.
- UpdateThumbnail();
-}
-
-void AeroPeekWindow::Deactivate() {
- tab_active_ = false;
-}
-
-void AeroPeekWindow::Update(bool is_loading) {
- // Create a place-holder window used by AeroPeek if it has not been created
- // so Windows can send events used by AeroPeek to this window.
- // Windows automatically sends a WM_DWMSENDICONICTHUMBNAIL message after this
- // window is registered to Windows. So, we don't have to invalidate the
- // thumbnail image of this window now.
- if (!hwnd()) {
- gfx::Rect bounds;
- WindowImpl::Init(frame_window_, bounds);
- return;
- }
-
- // Invalidate the thumbnail image of this window.
- // When we invalidate the thumbnail image, we HAVE TO handle a succeeding
- // WM_DWMSENDICONICTHUMBNAIL message and update the thumbnail image with a
- // DwmSetIconicThumbnail() call. So, we should not call this function when
- // we don't have enough information to create a thumbnail.
- if (tab_active_ || !is_loading)
- UpdateThumbnail();
-}
-
-void AeroPeekWindow::Destroy() {
- if (!IsWindow(hwnd()))
- return;
-
- // Remove this window from the tab list of Windows.
- base::win::ScopedComPtr<ITaskbarList3> taskbar;
- HRESULT result = taskbar.CreateInstance(CLSID_TaskbarList, NULL,
- CLSCTX_INPROC_SERVER);
- if (FAILED(result))
- return;
-
- result = taskbar->HrInit();
- if (FAILED(result))
- return;
-
- result = taskbar->UnregisterTab(hwnd());
-
- // Destroy this window.
- DestroyWindow(hwnd());
-}
-
-void AeroPeekWindow::SetTitle(const std::wstring& title) {
- title_ = title;
-}
-
-void AeroPeekWindow::SetFavicon(const SkBitmap& favicon) {
- favicon_bitmap_ = favicon;
-}
-
-void AeroPeekWindow::UpdateThumbnail() {
- // We post a task to actually create a new thumbnail. So, this function may
- // be called while we are creating a thumbnail. To prevent this window from
- // posting two or more tasks, we don't invalidate the current thumbnail
- // when this event is not signaled.
- if (ready_to_update_thumbnail_.IsSignaled())
- CallDwmInvalidateIconicBitmaps(hwnd());
-}
-
-gfx::Rect AeroPeekWindow::GetContentBounds() const {
- RECT content_rect;
- GetClientRect(frame_window_, &content_rect);
-
- gfx::Insets content_insets;
- delegate_->GetContentInsets(&content_insets);
-
- gfx::Rect content_bounds(content_rect);
- content_bounds.Inset(content_insets.left(),
- content_insets.top(),
- content_insets.right(),
- content_insets.bottom());
- return content_bounds;
-}
-
-// message handlers
-
-void AeroPeekWindow::OnActivate(UINT action,
- BOOL minimized,
- HWND window) {
- // Windows sends a WM_ACTIVATE message not only when a user clicks this
- // window (i.e. this window gains the thumbnail focus) but also a user clicks
- // another window (i.e. this window loses the thumbnail focus.)
- // Return when this window loses the thumbnail focus since we don't have to
- // do anything for this case.
- if (action == WA_INACTIVE)
- return;
-
- // Ask Chrome to activate the tab associated with this thumbnail window.
- // Since TabStripModel calls AeroPeekManager::ActiveTabChanged() when it
- // finishes activating the tab. We will move the tab focus of AeroPeek there.
- if (delegate_)
- delegate_->ActivateTab(tab_id_);
-}
-
-LRESULT AeroPeekWindow::OnCreate(LPCREATESTRUCT create_struct) {
- // Initialize the window title now since WindowImpl::Init() always calls
- // CreateWindowEx() with its window name NULL.
- if (!title_.empty()) {
- SendMessage(hwnd(), WM_SETTEXT, 0,
- reinterpret_cast<LPARAM>(title_.c_str()));
- }
-
- // Window attributes for DwmSetWindowAttribute().
- // These enum values are copied from Windows SDK 7 so we can compile this
- // file with or without it.
- // TODO(hbono): Bug 16903: to be deleted when we use Windows SDK 7.
- enum {
- DWMWA_NCRENDERING_ENABLED = 1,
- DWMWA_NCRENDERING_POLICY,
- DWMWA_TRANSITIONS_FORCEDISABLED,
- DWMWA_ALLOW_NCPAINT,
- DWMWA_CAPTION_BUTTON_BOUNDS,
- DWMWA_NONCLIENT_RTL_LAYOUT,
- DWMWA_FORCE_ICONIC_REPRESENTATION,
- DWMWA_FLIP3D_POLICY,
- DWMWA_EXTENDED_FRAME_BOUNDS,
- DWMWA_HAS_ICONIC_BITMAP,
- DWMWA_DISALLOW_PEEK,
- DWMWA_EXCLUDED_FROM_PEEK,
- DWMWA_LAST
- };
-
- // Set DWM attributes to tell Windows that this window can provide the
- // bitmaps used by AeroPeek.
- BOOL force_iconic_representation = TRUE;
- DwmSetWindowAttribute(hwnd(),
- DWMWA_FORCE_ICONIC_REPRESENTATION,
- &force_iconic_representation,
- sizeof(force_iconic_representation));
-
- BOOL has_iconic_bitmap = TRUE;
- DwmSetWindowAttribute(hwnd(),
- DWMWA_HAS_ICONIC_BITMAP,
- &has_iconic_bitmap,
- sizeof(has_iconic_bitmap));
-
- // Post a task that registers this thumbnail window to Windows because it
- // may take some time. (For example, when we create an ITaskbarList3
- // interface for the first time, Windows loads DLLs and we need to wait for
- // some time.)
- BrowserThread::PostTask(
- BrowserThread::IO, FROM_HERE,
- base::Bind(&RegisterThumbnailCallback, frame_window_, hwnd(),
- tab_active_));
-
- return 0;
-}
-
-void AeroPeekWindow::OnClose() {
- // Unregister this window from the tab list of Windows and destroy this
- // window.
- // The resources attached to this object will be deleted when TabStrip calls
- // AeroPeekManager::TabClosingAt(). (Please read the comment in TabClosingAt()
- // for its details.)
- Destroy();
-
- // Ask AeroPeekManager to close the tab associated with this thumbnail
- // window.
- if (delegate_)
- delegate_->CloseTab(tab_id_);
-}
-
-LRESULT AeroPeekWindow::OnDwmSendIconicThumbnail(UINT message,
- WPARAM wparam,
- LPARAM lparam) {
- // Update the window title to synchronize the title.
- SendMessage(hwnd(), WM_SETTEXT, 0, reinterpret_cast<LPARAM>(title_.c_str()));
-
- // Create an I/O task since it takes long time to resize these images and
- // send them to Windows. This task signals |ready_to_update_thumbnail_| in
- // its destructor to notify us when this task has been finished. (We create an
- // I/O task even when the given thumbnail is empty to stop the "loading"
- // animation.)
- DCHECK(delegate_);
-
- SkBitmap thumbnail;
- delegate_->GetTabThumbnail(tab_id_, &thumbnail);
-
- gfx::Size aeropeek_size(HIWORD(lparam), LOWORD(lparam));
- BrowserThread::PostTask(
- BrowserThread::IO, FROM_HERE,
- base::Bind(&SendThumbnailCallback, hwnd(), GetContentBounds(),
- aeropeek_size, thumbnail, &ready_to_update_thumbnail_));
- return 0;
-}
-
-LRESULT AeroPeekWindow::OnDwmSendIconicLivePreviewBitmap(UINT message,
- WPARAM wparam,
- LPARAM lparam) {
- // Same as OnDwmSendIconicThumbnail(), we create an I/O task which creates
- // a preview image used by AeroPeek and send it to Windows. Unlike
- // OnDwmSendIconicThumbnail(), we don't have to use events for preventing this
- // window from sending two or more tasks because Windows doesn't send
- // WM_DWMSENDICONICLIVEPREVIEWBITMAP messages before we send the preview image
- // to Windows.
- DCHECK(delegate_);
-
- SkBitmap preview;
- delegate_->GetTabPreview(tab_id_, &preview);
-
- BrowserThread::PostTask(
- BrowserThread::IO, FROM_HERE,
- base::Bind(&SendLivePreviewCallback, hwnd(), GetContentBounds(),
- preview));
-
- return 0;
-}
-
-HICON AeroPeekWindow::OnGetIcon(UINT index) {
- // Return the application icon if this window doesn't have favicons.
- // We save this application icon to avoid calling LoadIcon() twice or more.
- if (favicon_bitmap_.isNull()) {
- if (!frame_icon_) {
- frame_icon_ = GetAppIcon();
- }
- return frame_icon_;
- }
-
- // Create a Windows icon from SkBitmap and send it to Windows. We set this
- // icon to the ScopedIcon object to delete it in the destructor.
- favicon_.Set(IconUtil::CreateHICONFromSkBitmap(favicon_bitmap_));
- return favicon_.Get();
-}
-
-AeroPeekManager::AeroPeekManager(HWND application_window)
- : application_window_(application_window),
- border_left_(0),
- border_top_(0),
- toolbar_top_(0) {
-}
-
-AeroPeekManager::~AeroPeekManager() {
- // Delete all AeroPeekWindow objects.
- for (std::list<AeroPeekWindow*>::iterator i = tab_list_.begin();
- i != tab_list_.end(); ++i) {
- AeroPeekWindow* window = *i;
- delete window;
- }
-}
-
-void AeroPeekManager::SetContentInsets(const gfx::Insets& insets) {
- content_insets_ = insets;
-}
-
-// static
-bool AeroPeekManager::Enabled() {
- // We enable our custom AeroPeek only when:
- // * Chrome is running on Windows 7 and Aero is enabled,
- // * Chrome is not launched in application mode, and
- // * Chrome is launched with the "--enable-aero-peek-tabs" option.
- // TODO(hbono): Bug 37957 <http://crbug.com/37957>: find solutions that avoid
- // flooding users with tab thumbnails.
- const CommandLine* command_line = CommandLine::ForCurrentProcess();
- return base::win::GetVersion() >= base::win::VERSION_WIN7 &&
- views::NativeWidgetWin::IsAeroGlassEnabled() &&
- !command_line->HasSwitch(switches::kApp) &&
- command_line->HasSwitch(switches::kEnableAeroPeekTabs);
-}
-
-void AeroPeekManager::DeleteAeroPeekWindow(int tab_id) {
- // This function does NOT call AeroPeekWindow::Destroy() before deleting
- // the AeroPeekWindow instance.
- for (std::list<AeroPeekWindow*>::iterator i = tab_list_.begin();
- i != tab_list_.end(); ++i) {
- AeroPeekWindow* window = *i;
- if (window->tab_id() == tab_id) {
- tab_list_.erase(i);
- delete window;
- return;
- }
- }
-}
-
-void AeroPeekManager::DeleteAeroPeekWindowForTab(TabContentsWrapper* tab) {
- // Delete the AeroPeekWindow object associated with this tab and all its
- // resources. (AeroPeekWindow::Destory() also removes this tab from the tab
- // list of Windows.)
- AeroPeekWindow* window = GetAeroPeekWindow(GetTabID(tab));
- if (!window)
- return;
-
- window->Destroy();
- DeleteAeroPeekWindow(GetTabID(tab));
-}
-
-AeroPeekWindow* AeroPeekManager::GetAeroPeekWindow(int tab_id) const {
- size_t size = tab_list_.size();
- for (std::list<AeroPeekWindow*>::const_iterator i = tab_list_.begin();
- i != tab_list_.end(); ++i) {
- AeroPeekWindow* window = *i;
- if (window->tab_id() == tab_id)
- return window;
- }
- return NULL;
-}
-
-void AeroPeekManager::CreateAeroPeekWindowIfNecessary(TabContentsWrapper* tab,
- bool foreground) {
- if (GetAeroPeekWindow(GetTabID(tab)))
- return;
-
- AeroPeekWindow* window =
- new AeroPeekWindow(application_window_,
- this,
- GetTabID(tab),
- foreground,
- tab->web_contents()->GetTitle(),
- tab->favicon_tab_helper()->GetFavicon());
- tab_list_.push_back(window);
-}
-
-WebContents* AeroPeekManager::GetWebContents(int tab_id) const {
- for (TabContentsIterator iterator; !iterator.done(); ++iterator) {
- if (GetTabID(*iterator) == tab_id)
- return (*iterator)->web_contents();
- }
- return NULL;
-}
-
-int AeroPeekManager::GetTabID(TabContentsWrapper* contents) const {
- if (!contents)
- return -1;
- return contents->restore_tab_helper()->session_id().id();
-}
-
-///////////////////////////////////////////////////////////////////////////////
-// AeroPeekManager, TabStripModelObserver implementation:
-
-void AeroPeekManager::TabInsertedAt(TabContentsWrapper* contents,
- int index,
- bool foreground) {
- if (!contents)
- return;
-
- CreateAeroPeekWindowIfNecessary(contents, foreground);
-}
-
-void AeroPeekManager::TabDetachedAt(TabContentsWrapper* contents, int index) {
- if (!contents)
- return;
-
- // Chrome will call TabInsertedAt() when this tab is inserted to another
- // TabStrip. We will re-create an AeroPeekWindow object for this tab and
- // re-add it to the tab list there.
- DeleteAeroPeekWindowForTab(contents);
-}
-
-void AeroPeekManager::ActiveTabChanged(TabContentsWrapper* old_contents,
- TabContentsWrapper* new_contents,
- int index,
- bool user_gesture) {
- // Deactivate the old window in the thumbnail list and activate the new one
- // to synchronize the thumbnail list with TabStrip.
- if (old_contents) {
- AeroPeekWindow* old_window = GetAeroPeekWindow(GetTabID(old_contents));
- if (old_window)
- old_window->Deactivate();
- }
-
- if (new_contents) {
- AeroPeekWindow* new_window = GetAeroPeekWindow(GetTabID(new_contents));
- if (new_window)
- new_window->Activate();
- }
-}
-
-void AeroPeekManager::TabReplacedAt(TabStripModel* tab_strip_model,
- TabContentsWrapper* old_contents,
- TabContentsWrapper* new_contents,
- int index) {
- DeleteAeroPeekWindowForTab(old_contents);
-
- CreateAeroPeekWindowIfNecessary(new_contents,
- (index == tab_strip_model->active_index()));
- // We don't need to update the selection as if |new_contents| is selected the
- // TabStripModel will send ActiveTabChanged.
-}
-
-void AeroPeekManager::TabMoved(TabContentsWrapper* contents,
- int from_index,
- int to_index,
- bool pinned_state_changed) {
- // TODO(hbono): we need to reorder the thumbnail list of Windows here?
- // (Unfortunately, it is not so trivial to reorder the thumbnail list when
- // we detach/attach tabs.)
-}
-
-void AeroPeekManager::TabChangedAt(TabContentsWrapper* contents,
- int index,
- TabChangeType change_type) {
- if (!contents)
- return;
-
- // Retrieve the AeroPeekWindow object associated with this tab, update its
- // title, and post a task that update its thumbnail image if necessary.
- AeroPeekWindow* window = GetAeroPeekWindow(GetTabID(contents));
- if (!window)
- return;
-
- // Update the title, the favicon, and the thumbnail used for AeroPeek.
- // These function don't actually update the icon and the thumbnail until
- // Windows needs them (e.g. when a user hovers a taskbar icon) to avoid
- // hurting the rendering performance. (These functions just save the
- // information needed for handling update requests from Windows.)
- window->SetTitle(contents->web_contents()->GetTitle());
- window->SetFavicon(contents->favicon_tab_helper()->GetFavicon());
- window->Update(contents->web_contents()->IsLoading());
-}
-
-///////////////////////////////////////////////////////////////////////////////
-// AeroPeekManager, AeroPeekWindowDelegate implementation:
-
-void AeroPeekManager::ActivateTab(int tab_id) {
- // Ask TabStrip to activate this tab.
- // We don't have to update thumbnails now since TabStrip will call
- // ActiveTabChanged() when it actually activates this tab.
- WebContents* contents = GetWebContents(tab_id);
- if (contents && contents->GetDelegate())
- contents->GetDelegate()->ActivateContents(contents);
-}
-
-void AeroPeekManager::CloseTab(int tab_id) {
- // Ask TabStrip to close this tab.
- // TabStrip will call TabClosingAt() when it actually closes this tab. We
- // will delete the AeroPeekWindow object attached to this tab there.
- WebContents* contents = GetWebContents(tab_id);
- if (contents && contents->GetDelegate())
- contents->GetDelegate()->CloseContents(contents);
-}
-
-void AeroPeekManager::GetContentInsets(gfx::Insets* insets) {
- *insets = content_insets_;
-}
-
-bool AeroPeekManager::GetTabThumbnail(int tab_id, SkBitmap* thumbnail) {
- DCHECK(thumbnail);
-
- // Copy the thumbnail image and the favicon of this tab. We will resize the
- // images and send them to Windows.
- WebContents* contents = GetWebContents(tab_id);
- if (!contents)
- return false;
-
- ThumbnailGenerator* generator = g_browser_process->GetThumbnailGenerator();
- DCHECK(generator);
- *thumbnail = generator->GetThumbnailForRenderer(
- contents->GetRenderViewHost());
-
- return true;
-}
-
-bool AeroPeekManager::GetTabPreview(int tab_id, SkBitmap* preview) {
- DCHECK(preview);
-
- // Retrieve the BackingStore associated with the given tab and return its
- // SkPlatformCanvas.
- WebContents* contents = GetWebContents(tab_id);
- if (!contents)
- return false;
-
- content::RenderViewHost* render_view_host = contents->GetRenderViewHost();
- if (!render_view_host)
- return false;
- content::RenderWidgetHostView* view = render_view_host->GetView();
- if (!view)
- return false;
-
- // Create a copy of this BackingStore image.
- // This code is just copied from "thumbnail_generator.cc".
- skia::PlatformCanvas canvas;
- bool result = false;
- bool done = false;
- render_view_host->AsyncCopyFromBackingStore(
- gfx::Rect(),
- view->GetViewBounds().size(),
- &canvas,
- base::Bind(&CopyFromBackingStoreComplete,
- &result,
- &done));
- // RenderWidgetHost::AyncCopyFromBackingStore is currently implemented to run
- // synchronously.
- // TODO(mazda): Fix this so that it does not need to be synchronous
- // (http://crbug.com/126203).
- DCHECK(done);
- if (!result)
- return false;
-
- const SkBitmap& bitmap = skia::GetTopDevice(canvas)->accessBitmap(false);
- bitmap.copyTo(preview, SkBitmap::kARGB_8888_Config);
- return true;
-}
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