| // 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/tabs/tab_drag_controller.h" |
| |
| #include <math.h> |
| #include <set> |
| |
| #include "base/auto_reset.h" |
| #include "base/callback.h" |
| #include "base/i18n/rtl.h" |
| #include "base/macros.h" |
| #include "build/build_config.h" |
| #include "chrome/browser/chrome_notification_types.h" |
| #include "chrome/browser/profiles/profile.h" |
| #include "chrome/browser/ui/browser_list.h" |
| #include "chrome/browser/ui/browser_window.h" |
| #include "chrome/browser/ui/tabs/tab_strip_model.h" |
| #include "chrome/browser/ui/tabs/tab_strip_model_delegate.h" |
| #include "chrome/browser/ui/views/frame/browser_view.h" |
| #include "chrome/browser/ui/views/tabs/browser_tab_strip_controller.h" |
| #include "chrome/browser/ui/views/tabs/stacked_tab_strip_layout.h" |
| #include "chrome/browser/ui/views/tabs/tab.h" |
| #include "chrome/browser/ui/views/tabs/tab_strip.h" |
| #include "chrome/browser/ui/views/tabs/window_finder.h" |
| #include "content/public/browser/notification_service.h" |
| #include "content/public/browser/notification_source.h" |
| #include "content/public/browser/user_metrics.h" |
| #include "content/public/browser/web_contents.h" |
| #include "extensions/browser/extension_function_dispatcher.h" |
| #include "ui/display/display.h" |
| #include "ui/display/screen.h" |
| #include "ui/events/event_constants.h" |
| #include "ui/events/gestures/gesture_recognizer.h" |
| #include "ui/gfx/geometry/point_conversions.h" |
| #include "ui/views/event_monitor.h" |
| #include "ui/views/focus/view_storage.h" |
| #include "ui/views/widget/root_view.h" |
| #include "ui/views/widget/widget.h" |
| |
| #if defined(USE_ASH) |
| #include "ash/common/accelerators/accelerator_commands.h" // nogncheck |
| #include "ash/common/wm/maximize_mode/maximize_mode_controller.h" // nogncheck |
| #include "ash/common/wm/window_state.h" // nogncheck |
| #include "ash/common/wm_shell.h" // nogncheck |
| #include "ash/wm/window_state_aura.h" // nogncheck |
| #include "ui/wm/core/coordinate_conversion.h" // nogncheck |
| #endif |
| |
| #if defined(USE_AURA) |
| #include "ui/aura/env.h" // nogncheck |
| #include "ui/aura/window.h" // nogncheck |
| #include "ui/wm/core/window_modality_controller.h" // nogncheck |
| #endif |
| |
| using base::UserMetricsAction; |
| using content::OpenURLParams; |
| using content::WebContents; |
| |
| // If non-null there is a drag underway. |
| static TabDragController* instance_ = NULL; |
| |
| namespace { |
| |
| // Delay, in ms, during dragging before we bring a window to front. |
| const int kBringToFrontDelay = 750; |
| |
| // Initial delay before moving tabs when the dragged tab is close to the edge of |
| // the stacked tabs. |
| const int kMoveAttachedInitialDelay = 600; |
| |
| // Delay for moving tabs after the initial delay has passed. |
| const int kMoveAttachedSubsequentDelay = 300; |
| |
| const int kHorizontalMoveThreshold = 16; // DIPs. |
| |
| // Distance from the next/previous stacked before before we consider the tab |
| // close enough to trigger moving. |
| const int kStackedDistance = 36; |
| |
| // A dragged window is forced to be a bit smaller than maximized bounds during a |
| // drag. This prevents the dragged browser widget from getting maximized at |
| // creation and makes it easier to drag tabs out of a restored window that had |
| // maximized size. |
| const int kMaximizedWindowInset = 10; // DIPs. |
| |
| #if defined(USE_ASH) |
| void SetWindowPositionManaged(gfx::NativeWindow window, bool value) { |
| ash::wm::GetWindowState(window)->set_window_position_managed(value); |
| } |
| |
| // Returns true if |tab_strip| browser window is docked. |
| bool IsDockedOrSnapped(const TabStrip* tab_strip) { |
| DCHECK(tab_strip); |
| ash::wm::WindowState* window_state = |
| ash::wm::GetWindowState(tab_strip->GetWidget()->GetNativeWindow()); |
| return window_state->IsDocked() || window_state->IsSnapped(); |
| } |
| #else |
| void SetWindowPositionManaged(gfx::NativeWindow window, bool value) { |
| } |
| |
| bool IsDockedOrSnapped(const TabStrip* tab_strip) { |
| return false; |
| } |
| #endif |
| |
| #if defined(USE_AURA) |
| gfx::NativeWindow GetModalTransient(gfx::NativeWindow window) { |
| return wm::GetModalTransient(window); |
| } |
| #else |
| gfx::NativeWindow GetModalTransient(gfx::NativeWindow window) { |
| NOTIMPLEMENTED(); |
| return NULL; |
| } |
| #endif |
| |
| // Returns true if |bounds| contains the y-coordinate |y|. The y-coordinate |
| // of |bounds| is adjusted by |vertical_adjustment|. |
| bool DoesRectContainVerticalPointExpanded( |
| const gfx::Rect& bounds, |
| int vertical_adjustment, |
| int y) { |
| int upper_threshold = bounds.bottom() + vertical_adjustment; |
| int lower_threshold = bounds.y() - vertical_adjustment; |
| return y >= lower_threshold && y <= upper_threshold; |
| } |
| |
| // Adds |x_offset| to all the rectangles in |rects|. |
| void OffsetX(int x_offset, std::vector<gfx::Rect>* rects) { |
| if (x_offset == 0) |
| return; |
| |
| for (size_t i = 0; i < rects->size(); ++i) |
| (*rects)[i].set_x((*rects)[i].x() + x_offset); |
| } |
| |
| // WidgetObserver implementation that resets the window position managed |
| // property on Show. |
| // We're forced to do this here since BrowserFrameAsh resets the 'window |
| // position managed' property during a show and we need the property set to |
| // false before WorkspaceLayoutManager sees the visibility change. |
| class WindowPositionManagedUpdater : public views::WidgetObserver { |
| public: |
| void OnWidgetVisibilityChanged(views::Widget* widget, bool visible) override { |
| SetWindowPositionManaged(widget->GetNativeWindow(), false); |
| } |
| }; |
| |
| // EscapeTracker installs an event monitor and runs a callback when it receives |
| // the escape key. |
| class EscapeTracker : public ui::EventHandler { |
| public: |
| explicit EscapeTracker(const base::Closure& callback) |
| : escape_callback_(callback), |
| event_monitor_(views::EventMonitor::CreateApplicationMonitor(this)) { |
| } |
| |
| private: |
| // ui::EventHandler: |
| void OnKeyEvent(ui::KeyEvent* key) override { |
| if (key->type() == ui::ET_KEY_PRESSED && |
| key->key_code() == ui::VKEY_ESCAPE) { |
| escape_callback_.Run(); |
| } |
| } |
| |
| base::Closure escape_callback_; |
| std::unique_ptr<views::EventMonitor> event_monitor_; |
| |
| DISALLOW_COPY_AND_ASSIGN(EscapeTracker); |
| }; |
| |
| } // namespace |
| |
| TabDragController::TabDragData::TabDragData() |
| : contents(NULL), |
| source_model_index(-1), |
| attached_tab(NULL), |
| pinned(false) { |
| } |
| |
| TabDragController::TabDragData::~TabDragData() { |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| // TabDragController, public: |
| |
| // static |
| const int TabDragController::kTouchVerticalDetachMagnetism = 50; |
| |
| // static |
| const int TabDragController::kVerticalDetachMagnetism = 15; |
| |
| TabDragController::TabDragController() |
| : event_source_(EVENT_SOURCE_MOUSE), |
| source_tabstrip_(NULL), |
| attached_tabstrip_(NULL), |
| can_release_capture_(true), |
| offset_to_width_ratio_(0), |
| old_focused_view_id_( |
| views::ViewStorage::GetInstance()->CreateStorageID()), |
| last_move_screen_loc_(0), |
| started_drag_(false), |
| active_(true), |
| source_tab_index_(std::numeric_limits<size_t>::max()), |
| initial_move_(true), |
| detach_behavior_(DETACHABLE), |
| move_behavior_(REORDER), |
| mouse_move_direction_(0), |
| is_dragging_window_(false), |
| is_dragging_new_browser_(false), |
| was_source_maximized_(false), |
| was_source_fullscreen_(false), |
| did_restore_window_(false), |
| end_run_loop_behavior_(END_RUN_LOOP_STOP_DRAGGING), |
| waiting_for_run_loop_to_exit_(false), |
| tab_strip_to_attach_to_after_exit_(NULL), |
| move_loop_widget_(NULL), |
| is_mutating_(false), |
| attach_x_(-1), |
| attach_index_(-1), |
| window_finder_(base::MakeUnique<WindowFinder>()), |
| weak_factory_(this) { |
| instance_ = this; |
| } |
| |
| TabDragController::~TabDragController() { |
| views::ViewStorage::GetInstance()->RemoveView(old_focused_view_id_); |
| |
| if (instance_ == this) |
| instance_ = NULL; |
| |
| if (move_loop_widget_) { |
| if (added_observer_to_move_loop_widget_) |
| move_loop_widget_->RemoveObserver(this); |
| SetWindowPositionManaged(move_loop_widget_->GetNativeWindow(), true); |
| } |
| |
| if (source_tabstrip_) |
| GetModel(source_tabstrip_)->RemoveObserver(this); |
| |
| if (event_source_ == EVENT_SOURCE_TOUCH) { |
| TabStrip* capture_tabstrip = attached_tabstrip_ ? |
| attached_tabstrip_ : source_tabstrip_; |
| capture_tabstrip->GetWidget()->ReleaseCapture(); |
| } |
| } |
| |
| void TabDragController::Init( |
| TabStrip* source_tabstrip, |
| Tab* source_tab, |
| const std::vector<Tab*>& tabs, |
| const gfx::Point& mouse_offset, |
| int source_tab_offset, |
| const ui::ListSelectionModel& initial_selection_model, |
| MoveBehavior move_behavior, |
| EventSource event_source) { |
| DCHECK(!tabs.empty()); |
| DCHECK(std::find(tabs.begin(), tabs.end(), source_tab) != tabs.end()); |
| source_tabstrip_ = source_tabstrip; |
| was_source_maximized_ = source_tabstrip->GetWidget()->IsMaximized(); |
| was_source_fullscreen_ = source_tabstrip->GetWidget()->IsFullscreen(); |
| // Do not release capture when transferring capture between widgets on: |
| // - Desktop Linux |
| // Mouse capture is not synchronous on desktop Linux. Chrome makes |
| // transferring capture between widgets without releasing capture appear |
| // synchronous on desktop Linux, so use that. |
| // - Ash |
| // Releasing capture on Ash cancels gestures so avoid it. |
| #if defined(OS_LINUX) || defined(USE_ASH) |
| can_release_capture_ = false; |
| #endif |
| start_point_in_screen_ = gfx::Point(source_tab_offset, mouse_offset.y()); |
| views::View::ConvertPointToScreen(source_tab, &start_point_in_screen_); |
| event_source_ = event_source; |
| mouse_offset_ = mouse_offset; |
| move_behavior_ = move_behavior; |
| last_point_in_screen_ = start_point_in_screen_; |
| last_move_screen_loc_ = start_point_in_screen_.x(); |
| initial_tab_positions_ = source_tabstrip->GetTabXCoordinates(); |
| |
| GetModel(source_tabstrip_)->AddObserver(this); |
| |
| drag_data_.resize(tabs.size()); |
| for (size_t i = 0; i < tabs.size(); ++i) |
| InitTabDragData(tabs[i], &(drag_data_[i])); |
| source_tab_index_ = |
| std::find(tabs.begin(), tabs.end(), source_tab) - tabs.begin(); |
| |
| // Listen for Esc key presses. |
| escape_tracker_.reset( |
| new EscapeTracker(base::Bind(&TabDragController::EndDrag, |
| weak_factory_.GetWeakPtr(), |
| END_DRAG_CANCEL))); |
| |
| if (source_tab->width() > 0) { |
| offset_to_width_ratio_ = static_cast<float>( |
| source_tab->GetMirroredXInView(source_tab_offset)) / |
| static_cast<float>(source_tab->width()); |
| } |
| InitWindowCreatePoint(); |
| initial_selection_model_.Copy(initial_selection_model); |
| |
| // Gestures don't automatically do a capture. We don't allow multiple drags at |
| // the same time, so we explicitly capture. |
| if (event_source == EVENT_SOURCE_TOUCH) |
| source_tabstrip_->GetWidget()->SetCapture(source_tabstrip_); |
| |
| #if defined(USE_ASH) |
| if (ash::WmShell::HasInstance() && |
| ash::WmShell::Get() |
| ->maximize_mode_controller() |
| ->IsMaximizeModeWindowManagerEnabled()) { |
| detach_behavior_ = NOT_DETACHABLE; |
| } |
| #endif |
| } |
| |
| // static |
| bool TabDragController::IsAttachedTo(const TabStrip* tab_strip) { |
| return (instance_ && instance_->active() && |
| instance_->attached_tabstrip() == tab_strip); |
| } |
| |
| // static |
| bool TabDragController::IsActive() { |
| return instance_ && instance_->active(); |
| } |
| |
| void TabDragController::SetMoveBehavior(MoveBehavior behavior) { |
| if (started_drag()) |
| return; |
| |
| move_behavior_ = behavior; |
| } |
| |
| bool TabDragController::IsDraggingTab(content::WebContents* contents) { |
| for (auto drag_data : drag_data_) { |
| if (drag_data.contents == contents) |
| return true; |
| } |
| return false; |
| } |
| |
| void TabDragController::Drag(const gfx::Point& point_in_screen) { |
| TRACE_EVENT1("views", "TabDragController::Drag", |
| "point_in_screen", point_in_screen.ToString()); |
| |
| bring_to_front_timer_.Stop(); |
| move_stacked_timer_.Stop(); |
| |
| if (waiting_for_run_loop_to_exit_) |
| return; |
| |
| if (!started_drag_) { |
| if (!CanStartDrag(point_in_screen)) |
| return; // User hasn't dragged far enough yet. |
| |
| // On windows SaveFocus() may trigger a capture lost, which destroys us. |
| { |
| base::WeakPtr<TabDragController> ref(weak_factory_.GetWeakPtr()); |
| SaveFocus(); |
| if (!ref) |
| return; |
| } |
| started_drag_ = true; |
| Attach(source_tabstrip_, gfx::Point()); |
| gfx::Point drag_point_in_screen = point_in_screen; |
| if (static_cast<int>(drag_data_.size()) == |
| GetModel(source_tabstrip_)->count()) { |
| if (was_source_maximized_ || was_source_fullscreen_) { |
| did_restore_window_ = true; |
| // When all tabs in a maximized browser are dragged the browser gets |
| // restored during the drag and maximized back when the drag ends. |
| views::Widget* widget = GetAttachedBrowserWidget(); |
| const int last_tabstrip_width = attached_tabstrip_->GetTabAreaWidth(); |
| std::vector<gfx::Rect> drag_bounds = CalculateBoundsForDraggedTabs(); |
| OffsetX(GetAttachedDragPoint(point_in_screen).x(), &drag_bounds); |
| gfx::Rect new_bounds(CalculateDraggedBrowserBounds(source_tabstrip_, |
| point_in_screen, |
| &drag_bounds)); |
| new_bounds.Offset(-widget->GetRestoredBounds().x() + |
| point_in_screen.x() - |
| mouse_offset_.x(), 0); |
| widget->SetVisibilityChangedAnimationsEnabled(false); |
| widget->Restore(); |
| widget->SetBounds(new_bounds); |
| AdjustBrowserAndTabBoundsForDrag(last_tabstrip_width, |
| point_in_screen, |
| &drag_bounds); |
| widget->SetVisibilityChangedAnimationsEnabled(true); |
| } else { |
| #if !defined(OS_LINUX) || defined(OS_CHROMEOS) |
| // The user has to move the mouse some amount of pixels before the drag |
| // starts. Offset the window by this amount so that the relative offset |
| // of the initial location is consistent. See crbug.com/518740 |
| views::Widget* widget = GetAttachedBrowserWidget(); |
| gfx::Rect bounds = widget->GetWindowBoundsInScreen(); |
| bounds.Offset(point_in_screen.x() - start_point_in_screen_.x(), |
| point_in_screen.y() - start_point_in_screen_.y()); |
| widget->SetBounds(bounds); |
| #else |
| // Linux does not need the window offset behavior above because all drag |
| // implementations move windows relative to a passed-in cursor position |
| // instead of the implicit current cursor position like on Windows. |
| drag_point_in_screen = start_point_in_screen_; |
| #endif |
| } |
| RunMoveLoop(GetWindowOffset(drag_point_in_screen)); |
| return; |
| } |
| } |
| |
| if (ContinueDragging(point_in_screen) == Liveness::DELETED) |
| return; |
| } |
| |
| void TabDragController::EndDrag(EndDragReason reason) { |
| TRACE_EVENT0("views", "TabDragController::EndDrag"); |
| |
| // If we're dragging a window ignore capture lost since it'll ultimately |
| // trigger the move loop to end and we'll revert the drag when RunMoveLoop() |
| // finishes. |
| if (reason == END_DRAG_CAPTURE_LOST && is_dragging_window_) |
| return; |
| EndDragImpl(reason != END_DRAG_COMPLETE && source_tabstrip_ ? |
| CANCELED : NORMAL); |
| } |
| |
| void TabDragController::InitTabDragData(Tab* tab, |
| TabDragData* drag_data) { |
| TRACE_EVENT0("views", "TabDragController::InitTabDragData"); |
| drag_data->source_model_index = |
| source_tabstrip_->GetModelIndexOfTab(tab); |
| drag_data->contents = GetModel(source_tabstrip_)->GetWebContentsAt( |
| drag_data->source_model_index); |
| drag_data->pinned = source_tabstrip_->IsTabPinned(tab); |
| } |
| |
| void TabDragController::OnWidgetBoundsChanged(views::Widget* widget, |
| const gfx::Rect& new_bounds) { |
| TRACE_EVENT1("views", "TabDragController::OnWidgetBoundsChanged", |
| "new_bounds", new_bounds.ToString()); |
| |
| Drag(GetCursorScreenPoint()); |
| } |
| |
| void TabDragController::TabStripEmpty() { |
| GetModel(source_tabstrip_)->RemoveObserver(this); |
| // NULL out source_tabstrip_ so that we don't attempt to add back to it (in |
| // the case of a revert). |
| source_tabstrip_ = NULL; |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| // TabDragController, private: |
| |
| void TabDragController::InitWindowCreatePoint() { |
| // window_create_point_ is only used in CompleteDrag() (through |
| // GetWindowCreatePoint() to get the start point of the docked window) when |
| // the attached_tabstrip_ is NULL and all the window's related bound |
| // information are obtained from source_tabstrip_. So, we need to get the |
| // first_tab based on source_tabstrip_, not attached_tabstrip_. Otherwise, |
| // the window_create_point_ is not in the correct coordinate system. Please |
| // refer to http://crbug.com/6223 comment #15 for detailed information. |
| views::View* first_tab = source_tabstrip_->tab_at(0); |
| views::View::ConvertPointToWidget(first_tab, &first_source_tab_point_); |
| window_create_point_ = first_source_tab_point_; |
| window_create_point_.Offset(mouse_offset_.x(), mouse_offset_.y()); |
| } |
| |
| gfx::Point TabDragController::GetWindowCreatePoint( |
| const gfx::Point& origin) const { |
| // If the cursor is outside the monitor area, move it inside. For example, |
| // dropping a tab onto the task bar on Windows produces this situation. |
| gfx::Rect work_area = |
| display::Screen::GetScreen()->GetDisplayNearestPoint(origin).work_area(); |
| gfx::Point create_point(origin); |
| if (!work_area.IsEmpty()) { |
| if (create_point.x() < work_area.x()) |
| create_point.set_x(work_area.x()); |
| else if (create_point.x() > work_area.right()) |
| create_point.set_x(work_area.right()); |
| if (create_point.y() < work_area.y()) |
| create_point.set_y(work_area.y()); |
| else if (create_point.y() > work_area.bottom()) |
| create_point.set_y(work_area.bottom()); |
| } |
| return gfx::Point(create_point.x() - window_create_point_.x(), |
| create_point.y() - window_create_point_.y()); |
| } |
| |
| void TabDragController::SaveFocus() { |
| DCHECK(source_tabstrip_); |
| views::View* focused_view = |
| source_tabstrip_->GetFocusManager()->GetFocusedView(); |
| if (focused_view) |
| views::ViewStorage::GetInstance()->StoreView(old_focused_view_id_, |
| focused_view); |
| source_tabstrip_->GetFocusManager()->SetFocusedView(source_tabstrip_); |
| // WARNING: we may have been deleted. |
| } |
| |
| void TabDragController::RestoreFocus() { |
| if (attached_tabstrip_ != source_tabstrip_) { |
| if (is_dragging_new_browser_) { |
| content::WebContents* active_contents = source_dragged_contents(); |
| if (active_contents && !active_contents->FocusLocationBarByDefault()) |
| active_contents->Focus(); |
| } |
| return; |
| } |
| views::View* old_focused_view = |
| views::ViewStorage::GetInstance()->RetrieveView(old_focused_view_id_); |
| if (!old_focused_view) |
| return; |
| old_focused_view->GetFocusManager()->SetFocusedView(old_focused_view); |
| } |
| |
| bool TabDragController::CanStartDrag(const gfx::Point& point_in_screen) const { |
| // Determine if the mouse has moved beyond a minimum elasticity distance in |
| // any direction from the starting point. |
| static const int kMinimumDragDistance = 10; |
| int x_offset = abs(point_in_screen.x() - start_point_in_screen_.x()); |
| int y_offset = abs(point_in_screen.y() - start_point_in_screen_.y()); |
| return sqrt(pow(static_cast<float>(x_offset), 2) + |
| pow(static_cast<float>(y_offset), 2)) > kMinimumDragDistance; |
| } |
| |
| TabDragController::Liveness TabDragController::ContinueDragging( |
| const gfx::Point& point_in_screen) { |
| TRACE_EVENT1("views", "TabDragController::ContinueDragging", |
| "point_in_screen", point_in_screen.ToString()); |
| |
| DCHECK(attached_tabstrip_); |
| |
| TabStrip* target_tabstrip = source_tabstrip_; |
| if (detach_behavior_ == DETACHABLE && |
| GetTargetTabStripForPoint(point_in_screen, &target_tabstrip) == |
| Liveness::DELETED) { |
| return Liveness::DELETED; |
| } |
| bool tab_strip_changed = (target_tabstrip != attached_tabstrip_); |
| |
| if (attached_tabstrip_) { |
| int move_delta = point_in_screen.x() - last_point_in_screen_.x(); |
| if (move_delta > 0) |
| mouse_move_direction_ |= kMovedMouseRight; |
| else if (move_delta < 0) |
| mouse_move_direction_ |= kMovedMouseLeft; |
| } |
| last_point_in_screen_ = point_in_screen; |
| |
| if (tab_strip_changed) { |
| is_dragging_new_browser_ = false; |
| did_restore_window_ = false; |
| if (DragBrowserToNewTabStrip(target_tabstrip, point_in_screen) == |
| DRAG_BROWSER_RESULT_STOP) { |
| return Liveness::ALIVE; |
| } |
| } |
| if (is_dragging_window_) { |
| static_cast<base::Timer*>(&bring_to_front_timer_)->Start(FROM_HERE, |
| base::TimeDelta::FromMilliseconds(kBringToFrontDelay), |
| base::Bind(&TabDragController::BringWindowUnderPointToFront, |
| base::Unretained(this), point_in_screen)); |
| } |
| |
| if (!is_dragging_window_ && attached_tabstrip_) { |
| if (move_only()) { |
| DragActiveTabStacked(point_in_screen); |
| } else { |
| MoveAttached(point_in_screen); |
| if (tab_strip_changed) { |
| // Move the corresponding window to the front. We do this after the |
| // move as on windows activate triggers a synchronous paint. |
| attached_tabstrip_->GetWidget()->Activate(); |
| } |
| } |
| } |
| return Liveness::ALIVE; |
| } |
| |
| TabDragController::DragBrowserResultType |
| TabDragController::DragBrowserToNewTabStrip( |
| TabStrip* target_tabstrip, |
| const gfx::Point& point_in_screen) { |
| TRACE_EVENT1("views", "TabDragController::DragBrowserToNewTabStrip", |
| "point_in_screen", point_in_screen.ToString()); |
| |
| if (!target_tabstrip) { |
| DetachIntoNewBrowserAndRunMoveLoop(point_in_screen); |
| return DRAG_BROWSER_RESULT_STOP; |
| } |
| |
| #if defined(USE_AURA) |
| // Only Aura windows are gesture consumers. |
| ui::GestureRecognizer::Get()->TransferEventsTo( |
| GetAttachedBrowserWidget()->GetNativeView(), |
| target_tabstrip->GetWidget()->GetNativeView(), |
| ui::GestureRecognizer::ShouldCancelTouches::DontCancel); |
| #endif |
| |
| if (is_dragging_window_) { |
| // ReleaseCapture() is going to result in calling back to us (because it |
| // results in a move). That'll cause all sorts of problems. Reset the |
| // observer so we don't get notified and process the event. |
| #if defined(USE_ASH) |
| move_loop_widget_->RemoveObserver(this); |
| move_loop_widget_ = nullptr; |
| #endif // USE_ASH |
| views::Widget* browser_widget = GetAttachedBrowserWidget(); |
| // Need to release the drag controller before starting the move loop as it's |
| // going to trigger capture lost, which cancels drag. |
| attached_tabstrip_->ReleaseDragController(); |
| target_tabstrip->OwnDragController(this); |
| // Disable animations so that we don't see a close animation on aero. |
| browser_widget->SetVisibilityChangedAnimationsEnabled(false); |
| if (can_release_capture_) |
| browser_widget->ReleaseCapture(); |
| else |
| target_tabstrip->GetWidget()->SetCapture(attached_tabstrip_); |
| |
| // The window is going away. Since the drag is still on going we don't want |
| // that to effect the position of any windows. |
| SetWindowPositionManaged(browser_widget->GetNativeWindow(), false); |
| |
| #if !defined(OS_LINUX) || defined(OS_CHROMEOS) |
| // EndMoveLoop is going to snap the window back to its original location. |
| // Hide it so users don't see this. Hiding a window in Linux aura causes |
| // it to lose capture so skip it. |
| browser_widget->Hide(); |
| #endif |
| browser_widget->EndMoveLoop(); |
| |
| // Ideally we would always swap the tabs now, but on non-ash Windows, it |
| // seems that running the move loop implicitly activates the window when |
| // done, leading to all sorts of flicker. So, on non-ash Windows, instead |
| // we process the move after the loop completes. But on chromeos, we can |
| // do tab swapping now to avoid the tab flashing issue |
| // (crbug.com/116329). |
| if (can_release_capture_) { |
| tab_strip_to_attach_to_after_exit_ = target_tabstrip; |
| } else { |
| is_dragging_window_ = false; |
| Detach(DONT_RELEASE_CAPTURE); |
| Attach(target_tabstrip, point_in_screen); |
| // Move the tabs into position. |
| MoveAttached(point_in_screen); |
| attached_tabstrip_->GetWidget()->Activate(); |
| } |
| |
| waiting_for_run_loop_to_exit_ = true; |
| end_run_loop_behavior_ = END_RUN_LOOP_CONTINUE_DRAGGING; |
| return DRAG_BROWSER_RESULT_STOP; |
| } |
| Detach(DONT_RELEASE_CAPTURE); |
| Attach(target_tabstrip, point_in_screen); |
| return DRAG_BROWSER_RESULT_CONTINUE; |
| } |
| |
| void TabDragController::DragActiveTabStacked( |
| const gfx::Point& point_in_screen) { |
| if (attached_tabstrip_->tab_count() != |
| static_cast<int>(initial_tab_positions_.size())) |
| return; // TODO: should cancel drag if this happens. |
| |
| int delta = point_in_screen.x() - start_point_in_screen_.x(); |
| attached_tabstrip_->DragActiveTab(initial_tab_positions_, delta); |
| } |
| |
| void TabDragController::MoveAttachedToNextStackedIndex( |
| const gfx::Point& point_in_screen) { |
| int index = attached_tabstrip_->touch_layout_->active_index(); |
| if (index + 1 >= attached_tabstrip_->tab_count()) |
| return; |
| |
| GetModel(attached_tabstrip_)->MoveSelectedTabsTo(index + 1); |
| StartMoveStackedTimerIfNecessary(point_in_screen, |
| kMoveAttachedSubsequentDelay); |
| } |
| |
| void TabDragController::MoveAttachedToPreviousStackedIndex( |
| const gfx::Point& point_in_screen) { |
| int index = attached_tabstrip_->touch_layout_->active_index(); |
| if (index <= attached_tabstrip_->GetPinnedTabCount()) |
| return; |
| |
| GetModel(attached_tabstrip_)->MoveSelectedTabsTo(index - 1); |
| StartMoveStackedTimerIfNecessary(point_in_screen, |
| kMoveAttachedSubsequentDelay); |
| } |
| |
| void TabDragController::MoveAttached(const gfx::Point& point_in_screen) { |
| DCHECK(attached_tabstrip_); |
| DCHECK(!is_dragging_window_); |
| |
| gfx::Point dragged_view_point = GetAttachedDragPoint(point_in_screen); |
| |
| // Determine the horizontal move threshold. This is dependent on the width |
| // of tabs. The smaller the tabs compared to the standard size, the smaller |
| // the threshold. |
| int threshold = kHorizontalMoveThreshold; |
| if (!attached_tabstrip_->touch_layout_.get()) { |
| double ratio = |
| static_cast<double>(attached_tabstrip_->current_inactive_width()) / |
| Tab::GetStandardSize().width(); |
| threshold = static_cast<int>(ratio * kHorizontalMoveThreshold); |
| } |
| // else case: touch tabs never shrink. |
| |
| std::vector<Tab*> tabs(drag_data_.size()); |
| for (size_t i = 0; i < drag_data_.size(); ++i) |
| tabs[i] = drag_data_[i].attached_tab; |
| |
| bool did_layout = false; |
| // Update the model, moving the WebContents from one index to another. Do this |
| // only if we have moved a minimum distance since the last reorder (to prevent |
| // jitter) or if this the first move and the tabs are not consecutive. |
| if ((abs(point_in_screen.x() - last_move_screen_loc_) > threshold || |
| (initial_move_ && !AreTabsConsecutive()))) { |
| TabStripModel* attached_model = GetModel(attached_tabstrip_); |
| int to_index = GetInsertionIndexForDraggedBounds( |
| GetDraggedViewTabStripBounds(dragged_view_point)); |
| bool do_move = true; |
| // While dragging within a tabstrip the expectation is the insertion index |
| // is based on the left edge of the tabs being dragged. OTOH when dragging |
| // into a new tabstrip (attaching) the expectation is the insertion index is |
| // based on the cursor. This proves problematic as insertion may change the |
| // size of the tabs, resulting in the index calculated before the insert |
| // differing from the index calculated after the insert. To alleviate this |
| // the index is chosen before insertion, and subsequently a new index is |
| // only used once the mouse moves enough such that the index changes based |
| // on the direction the mouse moved relative to |attach_x_| (smaller |
| // x-coordinate should yield a smaller index or larger x-coordinate yields a |
| // larger index). |
| if (attach_index_ != -1) { |
| gfx::Point tab_strip_point(point_in_screen); |
| views::View::ConvertPointFromScreen(attached_tabstrip_, &tab_strip_point); |
| const int new_x = |
| attached_tabstrip_->GetMirroredXInView(tab_strip_point.x()); |
| if (new_x < attach_x_) |
| to_index = std::min(to_index, attach_index_); |
| else |
| to_index = std::max(to_index, attach_index_); |
| if (to_index != attach_index_) |
| attach_index_ = -1; // Once a valid move is detected, don't constrain. |
| else |
| do_move = false; |
| } |
| if (do_move) { |
| WebContents* last_contents = drag_data_.back().contents; |
| int index_of_last_item = |
| attached_model->GetIndexOfWebContents(last_contents); |
| if (initial_move_) { |
| // TabStrip determines if the tabs needs to be animated based on model |
| // position. This means we need to invoke LayoutDraggedTabsAt before |
| // changing the model. |
| attached_tabstrip_->LayoutDraggedTabsAt( |
| tabs, source_tab_drag_data()->attached_tab, dragged_view_point, |
| initial_move_); |
| did_layout = true; |
| } |
| attached_model->MoveSelectedTabsTo(to_index); |
| |
| // Move may do nothing in certain situations (such as when dragging pinned |
| // tabs). Make sure the tabstrip actually changed before updating |
| // last_move_screen_loc_. |
| if (index_of_last_item != |
| attached_model->GetIndexOfWebContents(last_contents)) { |
| last_move_screen_loc_ = point_in_screen.x(); |
| } |
| } |
| } |
| |
| if (!did_layout) { |
| attached_tabstrip_->LayoutDraggedTabsAt( |
| tabs, source_tab_drag_data()->attached_tab, dragged_view_point, |
| initial_move_); |
| } |
| |
| StartMoveStackedTimerIfNecessary(point_in_screen, kMoveAttachedInitialDelay); |
| |
| initial_move_ = false; |
| } |
| |
| void TabDragController::StartMoveStackedTimerIfNecessary( |
| const gfx::Point& point_in_screen, |
| int delay_ms) { |
| DCHECK(attached_tabstrip_); |
| |
| StackedTabStripLayout* touch_layout = attached_tabstrip_->touch_layout_.get(); |
| if (!touch_layout) |
| return; |
| |
| gfx::Point dragged_view_point = GetAttachedDragPoint(point_in_screen); |
| gfx::Rect bounds = GetDraggedViewTabStripBounds(dragged_view_point); |
| int index = touch_layout->active_index(); |
| if (ShouldDragToNextStackedTab(bounds, index)) { |
| static_cast<base::Timer*>(&move_stacked_timer_)->Start( |
| FROM_HERE, |
| base::TimeDelta::FromMilliseconds(delay_ms), |
| base::Bind(&TabDragController::MoveAttachedToNextStackedIndex, |
| base::Unretained(this), point_in_screen)); |
| } else if (ShouldDragToPreviousStackedTab(bounds, index)) { |
| static_cast<base::Timer*>(&move_stacked_timer_)->Start( |
| FROM_HERE, |
| base::TimeDelta::FromMilliseconds(delay_ms), |
| base::Bind(&TabDragController::MoveAttachedToPreviousStackedIndex, |
| base::Unretained(this), point_in_screen)); |
| } |
| } |
| |
| TabDragController::DetachPosition TabDragController::GetDetachPosition( |
| const gfx::Point& point_in_screen) { |
| DCHECK(attached_tabstrip_); |
| gfx::Point attached_point(point_in_screen); |
| views::View::ConvertPointFromScreen(attached_tabstrip_, &attached_point); |
| if (attached_point.x() < 0) |
| return DETACH_BEFORE; |
| if (attached_point.x() >= attached_tabstrip_->width()) |
| return DETACH_AFTER; |
| return DETACH_ABOVE_OR_BELOW; |
| } |
| |
| TabDragController::Liveness TabDragController::GetTargetTabStripForPoint( |
| const gfx::Point& point_in_screen, |
| TabStrip** tab_strip) { |
| *tab_strip = nullptr; |
| TRACE_EVENT1("views", "TabDragController::GetTargetTabStripForPoint", |
| "point_in_screen", point_in_screen.ToString()); |
| |
| if (move_only() && attached_tabstrip_) { |
| // move_only() is intended for touch, in which case we only want to detach |
| // if the touch point moves significantly in the vertical distance. |
| gfx::Rect tabstrip_bounds = GetViewScreenBounds(attached_tabstrip_); |
| if (DoesRectContainVerticalPointExpanded(tabstrip_bounds, |
| kTouchVerticalDetachMagnetism, |
| point_in_screen.y())) { |
| *tab_strip = attached_tabstrip_; |
| return Liveness::ALIVE; |
| } |
| } |
| gfx::NativeWindow local_window; |
| const Liveness state = GetLocalProcessWindow( |
| point_in_screen, is_dragging_window_, &local_window); |
| if (state == Liveness::DELETED) |
| return Liveness::DELETED; |
| |
| // Do not allow dragging into a window with a modal dialog, it causes a weird |
| // behavior. See crbug.com/336691 |
| if (!GetModalTransient(local_window)) { |
| TabStrip* result = GetTabStripForWindow(local_window); |
| if (result && DoesTabStripContain(result, point_in_screen)) { |
| *tab_strip = result; |
| return Liveness::ALIVE; |
| } |
| } |
| |
| *tab_strip = is_dragging_window_ ? attached_tabstrip_ : nullptr; |
| return Liveness::ALIVE; |
| } |
| |
| TabStrip* TabDragController::GetTabStripForWindow(gfx::NativeWindow window) { |
| if (!window) |
| return NULL; |
| BrowserView* browser_view = |
| BrowserView::GetBrowserViewForNativeWindow(window); |
| // We don't allow drops on windows that don't have tabstrips. |
| if (!browser_view || |
| !browser_view->browser()->SupportsWindowFeature( |
| Browser::FEATURE_TABSTRIP)) |
| return NULL; |
| |
| TabStrip* other_tabstrip = browser_view->tabstrip(); |
| TabStrip* tab_strip = |
| attached_tabstrip_ ? attached_tabstrip_ : source_tabstrip_; |
| DCHECK(tab_strip); |
| |
| return other_tabstrip->controller()->IsCompatibleWith(tab_strip) ? |
| other_tabstrip : NULL; |
| } |
| |
| bool TabDragController::DoesTabStripContain( |
| TabStrip* tabstrip, |
| const gfx::Point& point_in_screen) const { |
| // Make sure the specified screen point is actually within the bounds of the |
| // specified tabstrip... |
| gfx::Rect tabstrip_bounds = GetViewScreenBounds(tabstrip); |
| return point_in_screen.x() < tabstrip_bounds.right() && |
| point_in_screen.x() >= tabstrip_bounds.x() && |
| DoesRectContainVerticalPointExpanded(tabstrip_bounds, |
| kVerticalDetachMagnetism, |
| point_in_screen.y()); |
| } |
| |
| void TabDragController::Attach(TabStrip* attached_tabstrip, |
| const gfx::Point& point_in_screen) { |
| TRACE_EVENT1("views", "TabDragController::Attach", |
| "point_in_screen", point_in_screen.ToString()); |
| |
| DCHECK(!attached_tabstrip_); // We should already have detached by the time |
| // we get here. |
| |
| attached_tabstrip_ = attached_tabstrip; |
| |
| std::vector<Tab*> tabs = |
| GetTabsMatchingDraggedContents(attached_tabstrip_); |
| |
| if (tabs.empty()) { |
| // Transitioning from detached to attached to a new tabstrip. Add tabs to |
| // the new model. |
| |
| selection_model_before_attach_.Copy(attached_tabstrip->GetSelectionModel()); |
| |
| // Inserting counts as a move. We don't want the tabs to jitter when the |
| // user moves the tab immediately after attaching it. |
| last_move_screen_loc_ = point_in_screen.x(); |
| |
| // Figure out where to insert the tab based on the bounds of the dragged |
| // representation and the ideal bounds of the other Tabs already in the |
| // strip. ("ideal bounds" are stable even if the Tabs' actual bounds are |
| // changing due to animation). |
| gfx::Point tab_strip_point(point_in_screen); |
| views::View::ConvertPointFromScreen(attached_tabstrip_, &tab_strip_point); |
| tab_strip_point.set_x( |
| attached_tabstrip_->GetMirroredXInView(tab_strip_point.x())); |
| tab_strip_point.Offset(0, -mouse_offset_.y()); |
| int index = GetInsertionIndexForDraggedBounds( |
| GetDraggedViewTabStripBounds(tab_strip_point)); |
| attach_index_ = index; |
| attach_x_ = tab_strip_point.x(); |
| base::AutoReset<bool> setter(&is_mutating_, true); |
| for (size_t i = 0; i < drag_data_.size(); ++i) { |
| int add_types = TabStripModel::ADD_NONE; |
| if (attached_tabstrip_->touch_layout_.get()) { |
| // StackedTabStripLayout positions relative to the active tab, if we |
| // don't add the tab as active things bounce around. |
| DCHECK_EQ(1u, drag_data_.size()); |
| add_types |= TabStripModel::ADD_ACTIVE; |
| } |
| if (drag_data_[i].pinned) |
| add_types |= TabStripModel::ADD_PINNED; |
| GetModel(attached_tabstrip_)->InsertWebContentsAt( |
| index + i, drag_data_[i].contents, add_types); |
| } |
| |
| tabs = GetTabsMatchingDraggedContents(attached_tabstrip_); |
| } |
| DCHECK_EQ(tabs.size(), drag_data_.size()); |
| for (size_t i = 0; i < drag_data_.size(); ++i) |
| drag_data_[i].attached_tab = tabs[i]; |
| |
| attached_tabstrip_->StartedDraggingTabs(tabs); |
| |
| ResetSelection(GetModel(attached_tabstrip_)); |
| |
| // The size of the dragged tab may have changed. Adjust the x offset so that |
| // ratio of mouse_offset_ to original width is maintained. |
| std::vector<Tab*> tabs_to_source(tabs); |
| tabs_to_source.erase(tabs_to_source.begin() + source_tab_index_ + 1, |
| tabs_to_source.end()); |
| int new_x = attached_tabstrip_->GetSizeNeededForTabs(tabs_to_source) - |
| tabs[source_tab_index_]->width() + |
| static_cast<int>(offset_to_width_ratio_ * |
| tabs[source_tab_index_]->width()); |
| mouse_offset_.set_x(new_x); |
| |
| // Transfer ownership of us to the new tabstrip as well as making sure the |
| // window has capture. This is important so that if activation changes the |
| // drag isn't prematurely canceled. |
| attached_tabstrip_->GetWidget()->SetCapture(attached_tabstrip_); |
| attached_tabstrip_->OwnDragController(this); |
| } |
| |
| void TabDragController::Detach(ReleaseCapture release_capture) { |
| TRACE_EVENT1("views", "TabDragController::Detach", |
| "release_capture", release_capture); |
| |
| attach_index_ = -1; |
| |
| // When the user detaches we assume they want to reorder. |
| move_behavior_ = REORDER; |
| |
| // Release ownership of the drag controller and mouse capture. When we |
| // reattach ownership is transfered. |
| attached_tabstrip_->ReleaseDragController(); |
| if (release_capture == RELEASE_CAPTURE) |
| attached_tabstrip_->GetWidget()->ReleaseCapture(); |
| |
| mouse_move_direction_ = kMovedMouseLeft | kMovedMouseRight; |
| |
| std::vector<gfx::Rect> drag_bounds = CalculateBoundsForDraggedTabs(); |
| TabStripModel* attached_model = GetModel(attached_tabstrip_); |
| std::vector<TabRendererData> tab_data; |
| for (size_t i = 0; i < drag_data_.size(); ++i) { |
| tab_data.push_back(drag_data_[i].attached_tab->data()); |
| int index = attached_model->GetIndexOfWebContents(drag_data_[i].contents); |
| DCHECK_NE(-1, index); |
| |
| // Hide the tab so that the user doesn't see it animate closed. |
| drag_data_[i].attached_tab->SetVisible(false); |
| drag_data_[i].attached_tab->set_detached(); |
| |
| attached_model->DetachWebContentsAt(index); |
| |
| // Detaching may end up deleting the tab, drop references to it. |
| drag_data_[i].attached_tab = NULL; |
| } |
| |
| // If we've removed the last Tab from the TabStrip, hide the frame now. |
| if (!attached_model->empty()) { |
| if (!selection_model_before_attach_.empty() && |
| selection_model_before_attach_.active() >= 0 && |
| selection_model_before_attach_.active() < attached_model->count()) { |
| // Restore the selection. |
| attached_model->SetSelectionFromModel(selection_model_before_attach_); |
| } else if (attached_tabstrip_ == source_tabstrip_ && |
| !initial_selection_model_.empty()) { |
| RestoreInitialSelection(); |
| } |
| } |
| |
| attached_tabstrip_->DraggedTabsDetached(); |
| attached_tabstrip_ = NULL; |
| } |
| |
| void TabDragController::DetachIntoNewBrowserAndRunMoveLoop( |
| const gfx::Point& point_in_screen) { |
| if (GetModel(attached_tabstrip_)->count() == |
| static_cast<int>(drag_data_.size())) { |
| // All the tabs in a browser are being dragged but all the tabs weren't |
| // initially being dragged. For this to happen the user would have to |
| // start dragging a set of tabs, the other tabs close, then detach. |
| RunMoveLoop(GetWindowOffset(point_in_screen)); |
| return; |
| } |
| |
| const int last_tabstrip_width = attached_tabstrip_->GetTabAreaWidth(); |
| std::vector<gfx::Rect> drag_bounds = CalculateBoundsForDraggedTabs(); |
| OffsetX(GetAttachedDragPoint(point_in_screen).x(), &drag_bounds); |
| |
| gfx::Vector2d drag_offset; |
| Browser* browser = CreateBrowserForDrag( |
| attached_tabstrip_, point_in_screen, &drag_offset, &drag_bounds); |
| |
| BrowserView* dragged_browser_view = |
| BrowserView::GetBrowserViewForBrowser(browser); |
| views::Widget* dragged_widget = dragged_browser_view->GetWidget(); |
| |
| #if defined(USE_AURA) |
| // Only Aura windows are gesture consumers. |
| gfx::NativeView attached_native_view = |
| attached_tabstrip_->GetWidget()->GetNativeView(); |
| ui::GestureRecognizer::Get()->TransferEventsTo( |
| attached_native_view, dragged_widget->GetNativeView(), |
| ui::GestureRecognizer::ShouldCancelTouches::DontCancel); |
| #endif |
| |
| Detach(can_release_capture_ ? RELEASE_CAPTURE : DONT_RELEASE_CAPTURE); |
| |
| dragged_widget->SetVisibilityChangedAnimationsEnabled(false); |
| Attach(dragged_browser_view->tabstrip(), gfx::Point()); |
| AdjustBrowserAndTabBoundsForDrag(last_tabstrip_width, |
| point_in_screen, |
| &drag_bounds); |
| WindowPositionManagedUpdater updater; |
| dragged_widget->AddObserver(&updater); |
| browser->window()->Show(); |
| dragged_widget->RemoveObserver(&updater); |
| dragged_widget->SetVisibilityChangedAnimationsEnabled(true); |
| // Activate may trigger a focus loss, destroying us. |
| { |
| base::WeakPtr<TabDragController> ref(weak_factory_.GetWeakPtr()); |
| browser->window()->Activate(); |
| if (!ref) |
| return; |
| } |
| RunMoveLoop(drag_offset); |
| } |
| |
| void TabDragController::RunMoveLoop(const gfx::Vector2d& drag_offset) { |
| // If the user drags the whole window we'll assume they are going to attach to |
| // another window and therefore want to reorder. |
| move_behavior_ = REORDER; |
| |
| move_loop_widget_ = GetAttachedBrowserWidget(); |
| DCHECK(move_loop_widget_); |
| move_loop_widget_->AddObserver(this); |
| added_observer_to_move_loop_widget_ = true; |
| is_dragging_window_ = true; |
| base::WeakPtr<TabDragController> ref(weak_factory_.GetWeakPtr()); |
| if (can_release_capture_) { |
| // Running the move loop releases mouse capture, which triggers destroying |
| // the drag loop. Release mouse capture now while the DragController is not |
| // owned by the TabStrip. |
| attached_tabstrip_->ReleaseDragController(); |
| attached_tabstrip_->GetWidget()->ReleaseCapture(); |
| attached_tabstrip_->OwnDragController(this); |
| } |
| const views::Widget::MoveLoopSource move_loop_source = |
| event_source_ == EVENT_SOURCE_MOUSE ? |
| views::Widget::MOVE_LOOP_SOURCE_MOUSE : |
| views::Widget::MOVE_LOOP_SOURCE_TOUCH; |
| const views::Widget::MoveLoopEscapeBehavior escape_behavior = |
| is_dragging_new_browser_ ? |
| views::Widget::MOVE_LOOP_ESCAPE_BEHAVIOR_HIDE : |
| views::Widget::MOVE_LOOP_ESCAPE_BEHAVIOR_DONT_HIDE; |
| views::Widget::MoveLoopResult result = |
| move_loop_widget_->RunMoveLoop( |
| drag_offset, move_loop_source, escape_behavior); |
| content::NotificationService::current()->Notify( |
| chrome::NOTIFICATION_TAB_DRAG_LOOP_DONE, |
| content::NotificationService::AllBrowserContextsAndSources(), |
| content::NotificationService::NoDetails()); |
| |
| if (!ref) |
| return; |
| if (move_loop_widget_) { |
| move_loop_widget_->RemoveObserver(this); |
| move_loop_widget_ = NULL; |
| } |
| is_dragging_window_ = false; |
| waiting_for_run_loop_to_exit_ = false; |
| if (end_run_loop_behavior_ == END_RUN_LOOP_CONTINUE_DRAGGING) { |
| end_run_loop_behavior_ = END_RUN_LOOP_STOP_DRAGGING; |
| if (tab_strip_to_attach_to_after_exit_) { |
| gfx::Point point_in_screen(GetCursorScreenPoint()); |
| Detach(DONT_RELEASE_CAPTURE); |
| Attach(tab_strip_to_attach_to_after_exit_, point_in_screen); |
| // Move the tabs into position. |
| MoveAttached(point_in_screen); |
| attached_tabstrip_->GetWidget()->Activate(); |
| // Activate may trigger a focus loss, destroying us. |
| if (!ref) |
| return; |
| tab_strip_to_attach_to_after_exit_ = NULL; |
| } |
| DCHECK(attached_tabstrip_); |
| attached_tabstrip_->GetWidget()->SetCapture(attached_tabstrip_); |
| } else if (active_) { |
| EndDrag(result == views::Widget::MOVE_LOOP_CANCELED ? |
| END_DRAG_CANCEL : END_DRAG_COMPLETE); |
| } |
| } |
| |
| int TabDragController::GetInsertionIndexFrom(const gfx::Rect& dragged_bounds, |
| int start) const { |
| const int last_tab = attached_tabstrip_->tab_count() - 1; |
| // Make the actual "drag insertion point" be just after the leading edge of |
| // the first dragged tab. This is closer to where the user thinks of the tab |
| // as "starting" than just dragged_bounds.x(), especially with narrow tabs. |
| const int dragged_x = dragged_bounds.x() + Tab::leading_width_for_drag(); |
| if (start < 0 || start > last_tab || |
| dragged_x < attached_tabstrip_->ideal_bounds(start).x()) |
| return -1; |
| |
| for (int i = start; i <= last_tab; ++i) { |
| const gfx::Rect& ideal_bounds = attached_tabstrip_->ideal_bounds(i); |
| if (dragged_x < (ideal_bounds.x() + (ideal_bounds.width() / 2))) |
| return i; |
| } |
| |
| return (dragged_x < attached_tabstrip_->ideal_bounds(last_tab).right()) ? |
| (last_tab + 1) : -1; |
| } |
| |
| int TabDragController::GetInsertionIndexFromReversed( |
| const gfx::Rect& dragged_bounds, |
| int start) const { |
| // Make the actual "drag insertion point" be just after the leading edge of |
| // the first dragged tab. This is closer to where the user thinks of the tab |
| // as "starting" than just dragged_bounds.x(), especially with narrow tabs. |
| const int dragged_x = dragged_bounds.x() + Tab::leading_width_for_drag(); |
| if (start < 0 || start >= attached_tabstrip_->tab_count() || |
| dragged_x >= attached_tabstrip_->ideal_bounds(start).right()) |
| return -1; |
| |
| for (int i = start; i >= 0; --i) { |
| const gfx::Rect& ideal_bounds = attached_tabstrip_->ideal_bounds(i); |
| if (dragged_x >= (ideal_bounds.x() + (ideal_bounds.width() / 2))) |
| return i + 1; |
| } |
| |
| return (dragged_x >= attached_tabstrip_->ideal_bounds(0).x()) ? 0 : -1; |
| } |
| |
| int TabDragController::GetInsertionIndexForDraggedBounds( |
| const gfx::Rect& dragged_bounds) const { |
| // If the strip has no tabs, the only position to insert at is 0. |
| const int tab_count = attached_tabstrip_->tab_count(); |
| if (!tab_count) |
| return 0; |
| |
| int index = -1; |
| if (attached_tabstrip_->touch_layout_.get()) { |
| index = GetInsertionIndexForDraggedBoundsStacked(dragged_bounds); |
| if (index != -1) { |
| // Only move the tab to the left/right if the user actually moved the |
| // mouse that way. This is necessary as tabs with stacked tabs |
| // before/after them have multiple drag positions. |
| int active_index = attached_tabstrip_->touch_layout_->active_index(); |
| if ((index < active_index && |
| (mouse_move_direction_ & kMovedMouseLeft) == 0) || |
| (index > active_index && |
| (mouse_move_direction_ & kMovedMouseRight) == 0)) { |
| index = active_index; |
| } |
| } |
| } else { |
| index = GetInsertionIndexFrom(dragged_bounds, 0); |
| } |
| if (index == -1) { |
| const int last_tab_right = |
| attached_tabstrip_->ideal_bounds(tab_count - 1).right(); |
| index = (dragged_bounds.right() > last_tab_right) ? tab_count : 0; |
| } |
| |
| const Tab* last_visible_tab = attached_tabstrip_->GetLastVisibleTab(); |
| int last_insertion_point = last_visible_tab ? |
| (attached_tabstrip_->GetModelIndexOfTab(last_visible_tab) + 1) : 0; |
| if (drag_data_[0].attached_tab) { |
| // We're not in the process of attaching, so clamp the insertion point to |
| // keep it within the visible region. |
| last_insertion_point = std::max( |
| 0, last_insertion_point - static_cast<int>(drag_data_.size())); |
| } |
| |
| // Ensure the first dragged tab always stays in the visible index range. |
| return std::min(index, last_insertion_point); |
| } |
| |
| bool TabDragController::ShouldDragToNextStackedTab( |
| const gfx::Rect& dragged_bounds, |
| int index) const { |
| if (index + 1 >= attached_tabstrip_->tab_count() || |
| !attached_tabstrip_->touch_layout_->IsStacked(index + 1) || |
| (mouse_move_direction_ & kMovedMouseRight) == 0) |
| return false; |
| |
| int active_x = attached_tabstrip_->ideal_bounds(index).x(); |
| int next_x = attached_tabstrip_->ideal_bounds(index + 1).x(); |
| int mid_x = std::min(next_x - kStackedDistance, |
| active_x + (next_x - active_x) / 4); |
| // TODO(pkasting): Should this add Tab::leading_width_for_drag() as |
| // GetInsertionIndexFrom() does? |
| return dragged_bounds.x() >= mid_x; |
| } |
| |
| bool TabDragController::ShouldDragToPreviousStackedTab( |
| const gfx::Rect& dragged_bounds, |
| int index) const { |
| if (index - 1 < attached_tabstrip_->GetPinnedTabCount() || |
| !attached_tabstrip_->touch_layout_->IsStacked(index - 1) || |
| (mouse_move_direction_ & kMovedMouseLeft) == 0) |
| return false; |
| |
| int active_x = attached_tabstrip_->ideal_bounds(index).x(); |
| int previous_x = attached_tabstrip_->ideal_bounds(index - 1).x(); |
| int mid_x = std::max(previous_x + kStackedDistance, |
| active_x - (active_x - previous_x) / 4); |
| // TODO(pkasting): Should this add Tab::leading_width_for_drag() as |
| // GetInsertionIndexFrom() does? |
| return dragged_bounds.x() <= mid_x; |
| } |
| |
| int TabDragController::GetInsertionIndexForDraggedBoundsStacked( |
| const gfx::Rect& dragged_bounds) const { |
| StackedTabStripLayout* touch_layout = attached_tabstrip_->touch_layout_.get(); |
| int active_index = touch_layout->active_index(); |
| // Search from the active index to the front of the tabstrip. Do this as tabs |
| // overlap each other from the active index. |
| int index = GetInsertionIndexFromReversed(dragged_bounds, active_index); |
| if (index != active_index) |
| return index; |
| if (index == -1) |
| return GetInsertionIndexFrom(dragged_bounds, active_index + 1); |
| |
| // The position to drag to corresponds to the active tab. If the next/previous |
| // tab is stacked, then shorten the distance used to determine insertion |
| // bounds. We do this as GetInsertionIndexFrom() uses the bounds of the |
| // tabs. When tabs are stacked the next/previous tab is on top of the tab. |
| if (active_index + 1 < attached_tabstrip_->tab_count() && |
| touch_layout->IsStacked(active_index + 1)) { |
| index = GetInsertionIndexFrom(dragged_bounds, active_index + 1); |
| if (index == -1 && ShouldDragToNextStackedTab(dragged_bounds, active_index)) |
| index = active_index + 1; |
| else if (index == -1) |
| index = active_index; |
| } else if (ShouldDragToPreviousStackedTab(dragged_bounds, active_index)) { |
| index = active_index - 1; |
| } |
| return index; |
| } |
| |
| gfx::Rect TabDragController::GetDraggedViewTabStripBounds( |
| const gfx::Point& tab_strip_point) { |
| // attached_tab is NULL when inserting into a new tabstrip. |
| if (source_tab_drag_data()->attached_tab) { |
| return gfx::Rect(tab_strip_point.x(), tab_strip_point.y(), |
| source_tab_drag_data()->attached_tab->width(), |
| source_tab_drag_data()->attached_tab->height()); |
| } |
| |
| return gfx::Rect(tab_strip_point.x(), tab_strip_point.y(), |
| attached_tabstrip_->current_active_width(), |
| Tab::GetStandardSize().height()); |
| } |
| |
| gfx::Point TabDragController::GetAttachedDragPoint( |
| const gfx::Point& point_in_screen) { |
| DCHECK(attached_tabstrip_); // The tab must be attached. |
| |
| gfx::Point tab_loc(point_in_screen); |
| views::View::ConvertPointFromScreen(attached_tabstrip_, &tab_loc); |
| const int x = |
| attached_tabstrip_->GetMirroredXInView(tab_loc.x()) - mouse_offset_.x(); |
| |
| // TODO: consider caching this. |
| std::vector<Tab*> attached_tabs; |
| for (size_t i = 0; i < drag_data_.size(); ++i) |
| attached_tabs.push_back(drag_data_[i].attached_tab); |
| const int size = attached_tabstrip_->GetSizeNeededForTabs(attached_tabs); |
| const int max_x = attached_tabstrip_->width() - size; |
| return gfx::Point(std::min(std::max(x, 0), max_x), 0); |
| } |
| |
| std::vector<Tab*> TabDragController::GetTabsMatchingDraggedContents( |
| TabStrip* tabstrip) { |
| TabStripModel* model = GetModel(attached_tabstrip_); |
| std::vector<Tab*> tabs; |
| for (size_t i = 0; i < drag_data_.size(); ++i) { |
| int model_index = model->GetIndexOfWebContents(drag_data_[i].contents); |
| if (model_index == TabStripModel::kNoTab) |
| return std::vector<Tab*>(); |
| tabs.push_back(tabstrip->tab_at(model_index)); |
| } |
| return tabs; |
| } |
| |
| std::vector<gfx::Rect> TabDragController::CalculateBoundsForDraggedTabs() { |
| std::vector<gfx::Rect> drag_bounds; |
| std::vector<Tab*> attached_tabs; |
| for (size_t i = 0; i < drag_data_.size(); ++i) |
| attached_tabs.push_back(drag_data_[i].attached_tab); |
| attached_tabstrip_->CalculateBoundsForDraggedTabs(attached_tabs, |
| &drag_bounds); |
| return drag_bounds; |
| } |
| |
| void TabDragController::EndDragImpl(EndDragType type) { |
| DCHECK(active_); |
| active_ = false; |
| |
| bring_to_front_timer_.Stop(); |
| move_stacked_timer_.Stop(); |
| |
| if (is_dragging_window_) { |
| waiting_for_run_loop_to_exit_ = true; |
| |
| if (type == NORMAL || (type == TAB_DESTROYED && drag_data_.size() > 1)) { |
| SetWindowPositionManaged(GetAttachedBrowserWidget()->GetNativeWindow(), |
| true); |
| } |
| |
| // End the nested drag loop. |
| GetAttachedBrowserWidget()->EndMoveLoop(); |
| } |
| |
| if (type != TAB_DESTROYED) { |
| // We only finish up the drag if we were actually dragging. If start_drag_ |
| // is false, the user just clicked and released and didn't move the mouse |
| // enough to trigger a drag. |
| if (started_drag_) { |
| RestoreFocus(); |
| if (type == CANCELED) |
| RevertDrag(); |
| else |
| CompleteDrag(); |
| } |
| } else if (drag_data_.size() > 1) { |
| initial_selection_model_.Clear(); |
| if (started_drag_) |
| RevertDrag(); |
| } // else case the only tab we were dragging was deleted. Nothing to do. |
| |
| // Clear out drag data so we don't attempt to do anything with it. |
| drag_data_.clear(); |
| |
| TabStrip* owning_tabstrip = attached_tabstrip_ ? |
| attached_tabstrip_ : source_tabstrip_; |
| owning_tabstrip->DestroyDragController(); |
| } |
| |
| void TabDragController::RevertDrag() { |
| std::vector<Tab*> tabs; |
| for (size_t i = 0; i < drag_data_.size(); ++i) { |
| if (drag_data_[i].contents) { |
| // Contents is NULL if a tab was destroyed while the drag was under way. |
| tabs.push_back(drag_data_[i].attached_tab); |
| RevertDragAt(i); |
| } |
| } |
| |
| if (attached_tabstrip_) { |
| if (did_restore_window_) |
| MaximizeAttachedWindow(); |
| if (attached_tabstrip_ == source_tabstrip_) { |
| source_tabstrip_->StoppedDraggingTabs( |
| tabs, initial_tab_positions_, move_behavior_ == MOVE_VISIBLE_TABS, |
| false); |
| } else { |
| attached_tabstrip_->DraggedTabsDetached(); |
| } |
| } |
| |
| if (initial_selection_model_.empty()) |
| ResetSelection(GetModel(source_tabstrip_)); |
| else |
| GetModel(source_tabstrip_)->SetSelectionFromModel(initial_selection_model_); |
| |
| if (source_tabstrip_) |
| source_tabstrip_->GetWidget()->Activate(); |
| } |
| |
| void TabDragController::ResetSelection(TabStripModel* model) { |
| DCHECK(model); |
| ui::ListSelectionModel selection_model; |
| bool has_one_valid_tab = false; |
| for (size_t i = 0; i < drag_data_.size(); ++i) { |
| // |contents| is NULL if a tab was deleted out from under us. |
| if (drag_data_[i].contents) { |
| int index = model->GetIndexOfWebContents(drag_data_[i].contents); |
| DCHECK_NE(-1, index); |
| selection_model.AddIndexToSelection(index); |
| if (!has_one_valid_tab || i == source_tab_index_) { |
| // Reset the active/lead to the first tab. If the source tab is still |
| // valid we'll reset these again later on. |
| selection_model.set_active(index); |
| selection_model.set_anchor(index); |
| has_one_valid_tab = true; |
| } |
| } |
| } |
| if (!has_one_valid_tab) |
| return; |
| |
| model->SetSelectionFromModel(selection_model); |
| } |
| |
| void TabDragController::RestoreInitialSelection() { |
| // First time detaching from the source tabstrip. Reset selection model to |
| // initial_selection_model_. Before resetting though we have to remove all |
| // the tabs from initial_selection_model_ as it was created with the tabs |
| // still there. |
| ui::ListSelectionModel selection_model; |
| selection_model.Copy(initial_selection_model_); |
| for (DragData::const_reverse_iterator i(drag_data_.rbegin()); |
| i != drag_data_.rend(); ++i) { |
| selection_model.DecrementFrom(i->source_model_index); |
| } |
| // We may have cleared out the selection model. Only reset it if it |
| // contains something. |
| if (selection_model.empty()) |
| return; |
| |
| // The anchor/active may have been among the tabs that were dragged out. Force |
| // the anchor/active to be valid. |
| if (selection_model.anchor() == ui::ListSelectionModel::kUnselectedIndex) |
| selection_model.set_anchor(selection_model.selected_indices()[0]); |
| if (selection_model.active() == ui::ListSelectionModel::kUnselectedIndex) |
| selection_model.set_active(selection_model.selected_indices()[0]); |
| GetModel(source_tabstrip_)->SetSelectionFromModel(selection_model); |
| } |
| |
| void TabDragController::RevertDragAt(size_t drag_index) { |
| DCHECK(started_drag_); |
| DCHECK(source_tabstrip_); |
| |
| base::AutoReset<bool> setter(&is_mutating_, true); |
| TabDragData* data = &(drag_data_[drag_index]); |
| if (attached_tabstrip_) { |
| int index = |
| GetModel(attached_tabstrip_)->GetIndexOfWebContents(data->contents); |
| if (attached_tabstrip_ != source_tabstrip_) { |
| // The Tab was inserted into another TabStrip. We need to put it back |
| // into the original one. |
| GetModel(attached_tabstrip_)->DetachWebContentsAt(index); |
| // TODO(beng): (Cleanup) seems like we should use Attach() for this |
| // somehow. |
| GetModel(source_tabstrip_)->InsertWebContentsAt( |
| data->source_model_index, data->contents, |
| (data->pinned ? TabStripModel::ADD_PINNED : 0)); |
| } else { |
| // The Tab was moved within the TabStrip where the drag was initiated. |
| // Move it back to the starting location. |
| GetModel(source_tabstrip_)->MoveWebContentsAt( |
| index, data->source_model_index, false); |
| } |
| } else { |
| // The Tab was detached from the TabStrip where the drag began, and has not |
| // been attached to any other TabStrip. We need to put it back into the |
| // source TabStrip. |
| GetModel(source_tabstrip_)->InsertWebContentsAt( |
| data->source_model_index, data->contents, |
| (data->pinned ? TabStripModel::ADD_PINNED : 0)); |
| } |
| } |
| |
| void TabDragController::CompleteDrag() { |
| DCHECK(started_drag_); |
| |
| if (attached_tabstrip_) { |
| if (is_dragging_new_browser_ || did_restore_window_) { |
| if (IsDockedOrSnapped(attached_tabstrip_)) { |
| was_source_maximized_ = false; |
| was_source_fullscreen_ = false; |
| } |
| |
| // If source window was maximized - maximize the new window as well. |
| if (was_source_maximized_ || was_source_fullscreen_) |
| MaximizeAttachedWindow(); |
| } |
| attached_tabstrip_->StoppedDraggingTabs( |
| GetTabsMatchingDraggedContents(attached_tabstrip_), |
| initial_tab_positions_, |
| move_behavior_ == MOVE_VISIBLE_TABS, |
| true); |
| } else { |
| // Compel the model to construct a new window for the detached |
| // WebContentses. |
| views::Widget* widget = source_tabstrip_->GetWidget(); |
| gfx::Rect window_bounds(widget->GetRestoredBounds()); |
| window_bounds.set_origin(GetWindowCreatePoint(last_point_in_screen_)); |
| |
| base::AutoReset<bool> setter(&is_mutating_, true); |
| |
| std::vector<TabStripModelDelegate::NewStripContents> contentses; |
| for (size_t i = 0; i < drag_data_.size(); ++i) { |
| TabStripModelDelegate::NewStripContents item; |
| item.web_contents = drag_data_[i].contents; |
| item.add_types = drag_data_[i].pinned ? TabStripModel::ADD_PINNED |
| : TabStripModel::ADD_NONE; |
| contentses.push_back(item); |
| } |
| |
| Browser* new_browser = |
| GetModel(source_tabstrip_)->delegate()->CreateNewStripWithContents( |
| contentses, window_bounds, widget->IsMaximized()); |
| ResetSelection(new_browser->tab_strip_model()); |
| new_browser->window()->Show(); |
| } |
| } |
| |
| void TabDragController::MaximizeAttachedWindow() { |
| if (move_loop_widget_ && added_observer_to_move_loop_widget_) { |
| // This function is only called when the drag is ending. At this point we |
| // don't care about any subsequent moves to the widget, so we remove the |
| // observer. If we didn't do this we could get told the widget moved and |
| // attempt to do the wrong thing. |
| move_loop_widget_->RemoveObserver(this); |
| added_observer_to_move_loop_widget_ = false; |
| } |
| GetAttachedBrowserWidget()->Maximize(); |
| #if defined(USE_ASH) |
| if (was_source_fullscreen_) { |
| // In fullscreen mode it is only possible to get here if the source |
| // was in "immersive fullscreen" mode, so toggle it back on. |
| ash::accelerators::ToggleFullscreen(); |
| } |
| #endif |
| } |
| |
| gfx::Rect TabDragController::GetViewScreenBounds( |
| views::View* view) const { |
| gfx::Point view_topleft; |
| views::View::ConvertPointToScreen(view, &view_topleft); |
| gfx::Rect view_screen_bounds = view->GetLocalBounds(); |
| view_screen_bounds.Offset(view_topleft.x(), view_topleft.y()); |
| return view_screen_bounds; |
| } |
| |
| void TabDragController::BringWindowUnderPointToFront( |
| const gfx::Point& point_in_screen) { |
| gfx::NativeWindow window; |
| if (GetLocalProcessWindow(point_in_screen, true, &window) == |
| Liveness::DELETED) { |
| return; |
| } |
| |
| // Only bring browser windows to front - only windows with a TabStrip can |
| // be tab drag targets. |
| if (!GetTabStripForWindow(window)) |
| return; |
| |
| if (window) { |
| views::Widget* widget_window = views::Widget::GetWidgetForNativeWindow( |
| window); |
| if (!widget_window) |
| return; |
| |
| #if defined(USE_ASH) |
| // TODO(varkha): The code below ensures that the phantom drag widget |
| // is shown on top of browser windows. The code should be moved to ash/ |
| // and the phantom should be able to assert its top-most state on its own. |
| // One strategy would be for DragWindowController to |
| // be able to observe stacking changes to the phantom drag widget's |
| // siblings in order to keep it on top. One way is to implement a |
| // notification that is sent to a window parent's observers when a |
| // stacking order is changed among the children of that same parent. |
| // Note that OnWindowStackingChanged is sent only to the child that is the |
| // argument of one of the Window::StackChildX calls and not to all its |
| // siblings affected by the stacking change. |
| aura::Window* browser_window = widget_window->GetNativeView(); |
| // Find a topmost non-popup window and stack the recipient browser above |
| // it in order to avoid stacking the browser window on top of the phantom |
| // drag widget created by DragWindowController in a second display. |
| for (aura::Window::Windows::const_reverse_iterator it = |
| browser_window->parent()->children().rbegin(); |
| it != browser_window->parent()->children().rend(); ++it) { |
| // If the iteration reached the recipient browser window then it is |
| // already topmost and it is safe to return with no stacking change. |
| if (*it == browser_window) |
| return; |
| if ((*it)->type() != ui::wm::WINDOW_TYPE_POPUP) { |
| widget_window->StackAbove(*it); |
| break; |
| } |
| } |
| #else |
| widget_window->StackAtTop(); |
| #endif |
| |
| // The previous call made the window appear on top of the dragged window, |
| // move the dragged window to the front. |
| if (is_dragging_window_) |
| attached_tabstrip_->GetWidget()->StackAtTop(); |
| } |
| } |
| |
| TabStripModel* TabDragController::GetModel( |
| TabStrip* tabstrip) const { |
| return static_cast<BrowserTabStripController*>(tabstrip->controller())-> |
| model(); |
| } |
| |
| views::Widget* TabDragController::GetAttachedBrowserWidget() { |
| return attached_tabstrip_->GetWidget(); |
| } |
| |
| bool TabDragController::AreTabsConsecutive() { |
| for (size_t i = 1; i < drag_data_.size(); ++i) { |
| if (drag_data_[i - 1].source_model_index + 1 != |
| drag_data_[i].source_model_index) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| gfx::Rect TabDragController::CalculateDraggedBrowserBounds( |
| TabStrip* source, |
| const gfx::Point& point_in_screen, |
| std::vector<gfx::Rect>* drag_bounds) { |
| gfx::Point center(0, source->height() / 2); |
| views::View::ConvertPointToWidget(source, ¢er); |
| gfx::Rect new_bounds(source->GetWidget()->GetRestoredBounds()); |
| |
| gfx::Rect work_area = display::Screen::GetScreen() |
| ->GetDisplayNearestPoint(last_point_in_screen_) |
| .work_area(); |
| if (new_bounds.size().width() >= work_area.size().width() && |
| new_bounds.size().height() >= work_area.size().height()) { |
| new_bounds = work_area; |
| new_bounds.Inset(kMaximizedWindowInset, kMaximizedWindowInset, |
| kMaximizedWindowInset, kMaximizedWindowInset); |
| // Behave as if the |source| was maximized at the start of a drag since this |
| // is consistent with a browser window creation logic in case of windows |
| // that are as large as the |work_area|. |
| was_source_maximized_ = true; |
| } |
| |
| if (source->GetWidget()->IsMaximized()) { |
| // If the restore bounds is really small, we don't want to honor it |
| // (dragging a really small window looks wrong), instead make sure the new |
| // window is at least 50% the size of the old. |
| const gfx::Size max_size( |
| source->GetWidget()->GetWindowBoundsInScreen().size()); |
| new_bounds.set_width( |
| std::max(max_size.width() / 2, new_bounds.width())); |
| new_bounds.set_height( |
| std::max(max_size.height() / 2, new_bounds.height())); |
| } |
| new_bounds.set_y(point_in_screen.y() - center.y()); |
| switch (GetDetachPosition(point_in_screen)) { |
| case DETACH_BEFORE: |
| new_bounds.set_x(point_in_screen.x() - center.x()); |
| new_bounds.Offset(-mouse_offset_.x(), 0); |
| break; |
| case DETACH_AFTER: { |
| gfx::Point right_edge(source->width(), 0); |
| views::View::ConvertPointToWidget(source, &right_edge); |
| new_bounds.set_x(point_in_screen.x() - right_edge.x()); |
| new_bounds.Offset(drag_bounds->back().right() - mouse_offset_.x(), 0); |
| OffsetX(-(*drag_bounds)[0].x(), drag_bounds); |
| break; |
| } |
| default: |
| break; // Nothing to do for DETACH_ABOVE_OR_BELOW. |
| } |
| |
| // Account for the extra space above the tabstrip on restored windows versus |
| // maximized windows. |
| if (source->GetWidget()->IsMaximized()) { |
| const auto* frame_view = static_cast<BrowserNonClientFrameView*>( |
| source->GetWidget()->non_client_view()->frame_view()); |
| new_bounds.Offset( |
| 0, frame_view->GetTopInset(false) - frame_view->GetTopInset(true)); |
| } |
| return new_bounds; |
| } |
| |
| void TabDragController::AdjustBrowserAndTabBoundsForDrag( |
| int last_tabstrip_width, |
| const gfx::Point& point_in_screen, |
| std::vector<gfx::Rect>* drag_bounds) { |
| attached_tabstrip_->InvalidateLayout(); |
| attached_tabstrip_->DoLayout(); |
| const int dragged_tabstrip_width = attached_tabstrip_->GetTabAreaWidth(); |
| |
| // If the new tabstrip is smaller than the old resize the tabs. |
| if (dragged_tabstrip_width < last_tabstrip_width) { |
| const float leading_ratio = |
| drag_bounds->front().x() / static_cast<float>(last_tabstrip_width); |
| *drag_bounds = CalculateBoundsForDraggedTabs(); |
| |
| if (drag_bounds->back().right() < dragged_tabstrip_width) { |
| const int delta_x = |
| std::min(static_cast<int>(leading_ratio * dragged_tabstrip_width), |
| dragged_tabstrip_width - |
| (drag_bounds->back().right() - |
| drag_bounds->front().x())); |
| OffsetX(delta_x, drag_bounds); |
| } |
| |
| // Reposition the restored window such that the tab that was dragged remains |
| // under the mouse cursor. |
| gfx::Point offset( |
| static_cast<int>((*drag_bounds)[source_tab_index_].width() * |
| offset_to_width_ratio_) + |
| (*drag_bounds)[source_tab_index_].x(), 0); |
| views::View::ConvertPointToWidget(attached_tabstrip_, &offset); |
| gfx::Rect bounds = GetAttachedBrowserWidget()->GetWindowBoundsInScreen(); |
| bounds.set_x(point_in_screen.x() - offset.x()); |
| GetAttachedBrowserWidget()->SetBounds(bounds); |
| } |
| attached_tabstrip_->SetTabBoundsForDrag(*drag_bounds); |
| } |
| |
| Browser* TabDragController::CreateBrowserForDrag( |
| TabStrip* source, |
| const gfx::Point& point_in_screen, |
| gfx::Vector2d* drag_offset, |
| std::vector<gfx::Rect>* drag_bounds) { |
| gfx::Rect new_bounds(CalculateDraggedBrowserBounds(source, |
| point_in_screen, |
| drag_bounds)); |
| *drag_offset = point_in_screen - new_bounds.origin(); |
| |
| Profile* profile = |
| Profile::FromBrowserContext(drag_data_[0].contents->GetBrowserContext()); |
| Browser::CreateParams create_params(Browser::TYPE_TABBED, profile); |
| create_params.initial_bounds = new_bounds; |
| Browser* browser = new Browser(create_params); |
| is_dragging_new_browser_ = true; |
| SetWindowPositionManaged(browser->window()->GetNativeWindow(), false); |
| // If the window is created maximized then the bounds we supplied are ignored. |
| // We need to reset them again so they are honored. |
| browser->window()->SetBounds(new_bounds); |
| |
| return browser; |
| } |
| |
| gfx::Point TabDragController::GetCursorScreenPoint() { |
| #if defined(USE_ASH) |
| if (event_source_ == EVENT_SOURCE_TOUCH && |
| aura::Env::GetInstance()->is_touch_down()) { |
| views::Widget* widget = GetAttachedBrowserWidget(); |
| DCHECK(widget); |
| aura::Window* widget_window = widget->GetNativeWindow(); |
| DCHECK(widget_window->GetRootWindow()); |
| gfx::PointF touch_point_f; |
| bool got_touch_point = ui::GestureRecognizer::Get()-> |
| GetLastTouchPointForTarget(widget_window, &touch_point_f); |
| CHECK(got_touch_point); |
| gfx::Point touch_point = gfx::ToFlooredPoint(touch_point_f); |
| wm::ConvertPointToScreen(widget_window->GetRootWindow(), &touch_point); |
| return touch_point; |
| } |
| #endif |
| |
| return display::Screen::GetScreen()->GetCursorScreenPoint(); |
| } |
| |
| gfx::Vector2d TabDragController::GetWindowOffset( |
| const gfx::Point& point_in_screen) { |
| TabStrip* owning_tabstrip = attached_tabstrip_ ? |
| attached_tabstrip_ : source_tabstrip_; |
| views::View* toplevel_view = owning_tabstrip->GetWidget()->GetContentsView(); |
| |
| gfx::Point point = point_in_screen; |
| views::View::ConvertPointFromScreen(toplevel_view, &point); |
| return point.OffsetFromOrigin(); |
| } |
| |
| TabDragController::Liveness TabDragController::GetLocalProcessWindow( |
| const gfx::Point& screen_point, |
| bool exclude_dragged_view, |
| gfx::NativeWindow* window) { |
| std::set<gfx::NativeWindow> exclude; |
| if (exclude_dragged_view) { |
| gfx::NativeWindow dragged_window = |
| attached_tabstrip_->GetWidget()->GetNativeWindow(); |
| if (dragged_window) |
| exclude.insert(dragged_window); |
| } |
| #if defined(OS_LINUX) && !defined(OS_CHROMEOS) |
| // Exclude windows which are pending deletion via Browser::TabStripEmpty(). |
| // These windows can be returned in the Linux Aura port because the browser |
| // window which was used for dragging is not hidden once all of its tabs are |
| // attached to another browser window in DragBrowserToNewTabStrip(). |
| // TODO(pkotwicz): Fix this properly (crbug.com/358482) |
| for (auto* browser : *BrowserList::GetInstance()) { |
| if (browser->tab_strip_model()->empty()) |
| exclude.insert(browser->window()->GetNativeWindow()); |
| } |
| #endif |
| base::WeakPtr<TabDragController> ref(weak_factory_.GetWeakPtr()); |
| *window = window_finder_->GetLocalProcessWindowAtPoint(screen_point, exclude); |
| return ref ? Liveness::ALIVE : Liveness::DELETED; |
| } |