| // 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 "ash/wm/panels/panel_layout_manager.h" |
| |
| #include <algorithm> |
| #include <map> |
| |
| #include "ash/launcher/launcher.h" |
| #include "ash/screen_ash.h" |
| #include "ash/shelf/shelf_layout_manager.h" |
| #include "ash/shelf/shelf_types.h" |
| #include "ash/shelf/shelf_widget.h" |
| #include "ash/shell.h" |
| #include "ash/shell_window_ids.h" |
| #include "ash/wm/window_animations.h" |
| #include "ash/wm/window_state.h" |
| #include "ash/wm/window_util.h" |
| #include "base/auto_reset.h" |
| #include "base/bind.h" |
| #include "base/bind_helpers.h" |
| #include "third_party/skia/include/core/SkColor.h" |
| #include "third_party/skia/include/core/SkPaint.h" |
| #include "third_party/skia/include/core/SkPath.h" |
| #include "ui/aura/client/activation_client.h" |
| #include "ui/aura/client/focus_client.h" |
| #include "ui/aura/client/window_tree_client.h" |
| #include "ui/aura/root_window.h" |
| #include "ui/aura/window.h" |
| #include "ui/compositor/scoped_layer_animation_settings.h" |
| #include "ui/gfx/canvas.h" |
| #include "ui/gfx/rect.h" |
| #include "ui/gfx/vector2d.h" |
| #include "ui/views/background.h" |
| #include "ui/views/widget/widget.h" |
| |
| namespace ash { |
| namespace internal { |
| |
| namespace { |
| const int kPanelIdealSpacing = 4; |
| |
| const float kMaxHeightFactor = .80f; |
| const float kMaxWidthFactor = .50f; |
| |
| // Duration for panel animations. |
| const int kPanelSlideDurationMilliseconds = 50; |
| const int kCalloutFadeDurationMilliseconds = 50; |
| |
| // Offset used when sliding panel in/out of the launcher. Used for minimizing, |
| // restoring and the initial showing of a panel. |
| const int kPanelSlideInOffset = 20; |
| |
| // Callout arrow dimensions. |
| const int kArrowWidth = 18; |
| const int kArrowHeight = 9; |
| |
| class CalloutWidgetBackground : public views::Background { |
| public: |
| CalloutWidgetBackground() : alignment_(SHELF_ALIGNMENT_BOTTOM) { |
| } |
| |
| virtual void Paint(gfx::Canvas* canvas, views::View* view) const OVERRIDE { |
| SkPath path; |
| switch (alignment_) { |
| case SHELF_ALIGNMENT_BOTTOM: |
| path.moveTo(SkIntToScalar(0), SkIntToScalar(0)); |
| path.lineTo(SkIntToScalar(kArrowWidth / 2), |
| SkIntToScalar(kArrowHeight)); |
| path.lineTo(SkIntToScalar(kArrowWidth), SkIntToScalar(0)); |
| break; |
| case SHELF_ALIGNMENT_LEFT: |
| path.moveTo(SkIntToScalar(kArrowHeight), SkIntToScalar(kArrowWidth)); |
| path.lineTo(SkIntToScalar(0), SkIntToScalar(kArrowWidth / 2)); |
| path.lineTo(SkIntToScalar(kArrowHeight), SkIntToScalar(0)); |
| break; |
| case SHELF_ALIGNMENT_TOP: |
| path.moveTo(SkIntToScalar(0), SkIntToScalar(kArrowHeight)); |
| path.lineTo(SkIntToScalar(kArrowWidth / 2), SkIntToScalar(0)); |
| path.lineTo(SkIntToScalar(kArrowWidth), SkIntToScalar(kArrowHeight)); |
| break; |
| case SHELF_ALIGNMENT_RIGHT: |
| path.moveTo(SkIntToScalar(0), SkIntToScalar(0)); |
| path.lineTo(SkIntToScalar(kArrowHeight), |
| SkIntToScalar(kArrowWidth / 2)); |
| path.lineTo(SkIntToScalar(0), SkIntToScalar(kArrowWidth)); |
| break; |
| } |
| // Hard code the arrow color for now. |
| SkPaint paint; |
| paint.setStyle(SkPaint::kFill_Style); |
| paint.setColor(SkColorSetARGB(0xff, 0xe5, 0xe5, 0xe5)); |
| canvas->DrawPath(path, paint); |
| } |
| |
| ShelfAlignment alignment() { |
| return alignment_; |
| } |
| |
| void set_alignment(ShelfAlignment alignment) { |
| alignment_ = alignment; |
| } |
| |
| private: |
| ShelfAlignment alignment_; |
| |
| DISALLOW_COPY_AND_ASSIGN(CalloutWidgetBackground); |
| }; |
| |
| struct VisiblePanelPositionInfo { |
| VisiblePanelPositionInfo() |
| : min_major(0), |
| max_major(0), |
| major_pos(0), |
| major_length(0), |
| window(NULL), |
| slide_in(false) {} |
| |
| int min_major; |
| int max_major; |
| int major_pos; |
| int major_length; |
| aura::Window* window; |
| bool slide_in; |
| }; |
| |
| bool CompareWindowMajor(const VisiblePanelPositionInfo& win1, |
| const VisiblePanelPositionInfo& win2) { |
| return win1.major_pos < win2.major_pos; |
| } |
| |
| void FanOutPanels(std::vector<VisiblePanelPositionInfo>::iterator first, |
| std::vector<VisiblePanelPositionInfo>::iterator last) { |
| int num_panels = last - first; |
| if (num_panels == 1) { |
| (*first).major_pos = std::max((*first).min_major, std::min( |
| (*first).max_major, (*first).major_pos)); |
| } |
| if (num_panels <= 1) |
| return; |
| |
| if (num_panels == 2) { |
| // If there are two adjacent overlapping windows, separate them by the |
| // minimum major_length necessary. |
| std::vector<VisiblePanelPositionInfo>::iterator second = first + 1; |
| int separation = (*first).major_length / 2 + (*second).major_length / 2 + |
| kPanelIdealSpacing; |
| int overlap = (*first).major_pos + separation - (*second).major_pos; |
| (*first).major_pos = std::max((*first).min_major, |
| (*first).major_pos - overlap / 2); |
| (*second).major_pos = std::min((*second).max_major, |
| (*first).major_pos + separation); |
| // Recalculate the first panel position in case the second one was |
| // constrained on the right. |
| (*first).major_pos = std::max((*first).min_major, |
| (*second).major_pos - separation); |
| return; |
| } |
| |
| // If there are more than two overlapping windows, fan them out from minimum |
| // position to maximum position equally spaced. |
| int delta = ((*(last - 1)).max_major - (*first).min_major) / (num_panels - 1); |
| int major_pos = (*first).min_major; |
| for (std::vector<VisiblePanelPositionInfo>::iterator iter = first; |
| iter != last; ++iter) { |
| (*iter).major_pos = std::max((*iter).min_major, |
| std::min((*iter).max_major, major_pos)); |
| major_pos += delta; |
| } |
| } |
| |
| bool BoundsAdjacent(const gfx::Rect& bounds1, const gfx::Rect& bounds2) { |
| return bounds1.x() == bounds2.right() || |
| bounds1.y() == bounds2.bottom() || |
| bounds1.right() == bounds2.x() || |
| bounds1.bottom() == bounds2.y(); |
| } |
| |
| gfx::Vector2d GetSlideInAnimationOffset(ShelfAlignment alignment) { |
| gfx::Vector2d offset; |
| switch (alignment) { |
| case SHELF_ALIGNMENT_BOTTOM: |
| offset.set_y(kPanelSlideInOffset); |
| break; |
| case SHELF_ALIGNMENT_LEFT: |
| offset.set_x(-kPanelSlideInOffset); |
| break; |
| case SHELF_ALIGNMENT_RIGHT: |
| offset.set_x(kPanelSlideInOffset); |
| break; |
| case SHELF_ALIGNMENT_TOP: |
| offset.set_y(-kPanelSlideInOffset); |
| break; |
| } |
| return offset; |
| } |
| |
| } // namespace |
| |
| class PanelCalloutWidget : public views::Widget { |
| public: |
| explicit PanelCalloutWidget(aura::Window* container) |
| : background_(NULL) { |
| InitWidget(container); |
| } |
| |
| void SetAlignment(ShelfAlignment alignment) { |
| gfx::Rect callout_bounds = GetWindowBoundsInScreen(); |
| if (alignment == SHELF_ALIGNMENT_BOTTOM || |
| alignment == SHELF_ALIGNMENT_TOP) { |
| callout_bounds.set_width(kArrowWidth); |
| callout_bounds.set_height(kArrowHeight); |
| } else { |
| callout_bounds.set_width(kArrowHeight); |
| callout_bounds.set_height(kArrowWidth); |
| } |
| GetNativeWindow()->SetBounds(callout_bounds); |
| if (background_->alignment() != alignment) { |
| background_->set_alignment(alignment); |
| SchedulePaintInRect(gfx::Rect(gfx::Point(), callout_bounds.size())); |
| } |
| } |
| |
| private: |
| void InitWidget(aura::Window* parent) { |
| views::Widget::InitParams params; |
| params.type = views::Widget::InitParams::TYPE_POPUP; |
| params.opacity = views::Widget::InitParams::TRANSLUCENT_WINDOW; |
| params.can_activate = false; |
| params.keep_on_top = true; |
| params.ownership = views::Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET; |
| params.parent = parent; |
| params.bounds = ScreenAsh::ConvertRectToScreen(parent, gfx::Rect()); |
| params.bounds.set_width(kArrowWidth); |
| params.bounds.set_height(kArrowHeight); |
| // Why do we need this and can_activate = false? |
| set_focus_on_creation(false); |
| Init(params); |
| DCHECK_EQ(GetNativeView()->GetRootWindow(), parent->GetRootWindow()); |
| views::View* content_view = new views::View; |
| background_ = new CalloutWidgetBackground; |
| content_view->set_background(background_); |
| SetContentsView(content_view); |
| GetNativeWindow()->layer()->SetOpacity(0); |
| } |
| |
| // Weak pointer owned by this widget's content view. |
| CalloutWidgetBackground* background_; |
| |
| DISALLOW_COPY_AND_ASSIGN(PanelCalloutWidget); |
| }; |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // PanelLayoutManager public implementation: |
| PanelLayoutManager::PanelLayoutManager(aura::Window* panel_container) |
| : panel_container_(panel_container), |
| in_add_window_(false), |
| in_layout_(false), |
| dragged_panel_(NULL), |
| launcher_(NULL), |
| shelf_layout_manager_(NULL), |
| shelf_hidden_(false), |
| last_active_panel_(NULL), |
| weak_factory_(this) { |
| DCHECK(panel_container); |
| aura::client::GetActivationClient(Shell::GetPrimaryRootWindow())-> |
| AddObserver(this); |
| Shell::GetInstance()->display_controller()->AddObserver(this); |
| Shell::GetInstance()->AddShellObserver(this); |
| } |
| |
| PanelLayoutManager::~PanelLayoutManager() { |
| Shutdown(); |
| } |
| |
| void PanelLayoutManager::Shutdown() { |
| if (shelf_layout_manager_) |
| shelf_layout_manager_->RemoveObserver(this); |
| shelf_layout_manager_ = NULL; |
| for (PanelList::iterator iter = panel_windows_.begin(); |
| iter != panel_windows_.end(); ++iter) { |
| delete iter->callout_widget; |
| } |
| panel_windows_.clear(); |
| if (launcher_) |
| launcher_->RemoveIconObserver(this); |
| launcher_ = NULL; |
| aura::client::GetActivationClient(Shell::GetPrimaryRootWindow())-> |
| RemoveObserver(this); |
| Shell::GetInstance()->display_controller()->RemoveObserver(this); |
| Shell::GetInstance()->RemoveShellObserver(this); |
| } |
| |
| void PanelLayoutManager::StartDragging(aura::Window* panel) { |
| DCHECK(!dragged_panel_); |
| dragged_panel_ = panel; |
| Relayout(); |
| } |
| |
| void PanelLayoutManager::FinishDragging() { |
| dragged_panel_ = NULL; |
| Relayout(); |
| } |
| |
| void PanelLayoutManager::SetLauncher(ash::Launcher* launcher) { |
| DCHECK(!launcher_); |
| DCHECK(!shelf_layout_manager_); |
| launcher_ = launcher; |
| launcher_->AddIconObserver(this); |
| if (launcher_->shelf_widget()) { |
| shelf_layout_manager_ = ash::internal::ShelfLayoutManager::ForLauncher( |
| launcher_->shelf_widget()->GetNativeWindow()); |
| WillChangeVisibilityState(shelf_layout_manager_->visibility_state()); |
| shelf_layout_manager_->AddObserver(this); |
| } |
| } |
| |
| void PanelLayoutManager::ToggleMinimize(aura::Window* panel) { |
| DCHECK(panel->parent() == panel_container_); |
| wm::WindowState* window_state = wm::GetWindowState(panel); |
| if (window_state->IsMinimized()) |
| window_state->Restore(); |
| else |
| window_state->Minimize(); |
| } |
| |
| views::Widget* PanelLayoutManager::GetCalloutWidgetForPanel( |
| aura::Window* panel) { |
| DCHECK(panel->parent() == panel_container_); |
| PanelList::iterator found = |
| std::find(panel_windows_.begin(), panel_windows_.end(), panel); |
| DCHECK(found != panel_windows_.end()); |
| return found->callout_widget; |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // PanelLayoutManager, aura::LayoutManager implementation: |
| void PanelLayoutManager::OnWindowResized() { |
| Relayout(); |
| } |
| |
| void PanelLayoutManager::OnWindowAddedToLayout(aura::Window* child) { |
| if (child->type() == aura::client::WINDOW_TYPE_POPUP) |
| return; |
| if (in_add_window_) |
| return; |
| base::AutoReset<bool> auto_reset_in_add_window(&in_add_window_, true); |
| if (!wm::GetWindowState(child)->panel_attached()) { |
| // This should only happen when a window is added to panel container as a |
| // result of bounds change from within the application during a drag. |
| // If so we have already stopped the drag and should reparent the panel |
| // back to appropriate container and ignore it. |
| // TODO(varkha): Updating bounds during a drag can cause problems and a more |
| // general solution is needed. See http://crbug.com/251813 . |
| aura::client::ParentWindowWithContext( |
| child, child, child->GetRootWindow()->GetBoundsInScreen()); |
| wm::ReparentTransientChildrenOfChild(child->parent(), child); |
| DCHECK(child->parent()->id() != kShellWindowId_PanelContainer); |
| return; |
| } |
| PanelInfo panel_info; |
| panel_info.window = child; |
| panel_info.callout_widget = new PanelCalloutWidget(panel_container_); |
| if (child != dragged_panel_) { |
| // Set the panel to 0 opacity until it has been positioned to prevent it |
| // from flashing briefly at position (0, 0). |
| child->layer()->SetOpacity(0); |
| panel_info.slide_in = true; |
| } |
| panel_windows_.push_back(panel_info); |
| child->AddObserver(this); |
| wm::GetWindowState(child)->AddObserver(this); |
| Relayout(); |
| } |
| |
| void PanelLayoutManager::OnWillRemoveWindowFromLayout(aura::Window* child) { |
| } |
| |
| void PanelLayoutManager::OnWindowRemovedFromLayout(aura::Window* child) { |
| if (child->type() == aura::client::WINDOW_TYPE_POPUP) |
| return; |
| PanelList::iterator found = |
| std::find(panel_windows_.begin(), panel_windows_.end(), child); |
| if (found != panel_windows_.end()) { |
| delete found->callout_widget; |
| panel_windows_.erase(found); |
| } |
| child->RemoveObserver(this); |
| wm::GetWindowState(child)->RemoveObserver(this); |
| |
| if (dragged_panel_ == child) |
| dragged_panel_ = NULL; |
| |
| if (last_active_panel_ == child) |
| last_active_panel_ = NULL; |
| |
| Relayout(); |
| } |
| |
| void PanelLayoutManager::OnChildWindowVisibilityChanged(aura::Window* child, |
| bool visible) { |
| Relayout(); |
| } |
| |
| void PanelLayoutManager::SetChildBounds(aura::Window* child, |
| const gfx::Rect& requested_bounds) { |
| gfx::Rect bounds(requested_bounds); |
| const gfx::Rect& max_bounds = panel_container_->GetRootWindow()->bounds(); |
| const int max_width = max_bounds.width() * kMaxWidthFactor; |
| const int max_height = max_bounds.height() * kMaxHeightFactor; |
| if (bounds.width() > max_width) |
| bounds.set_width(max_width); |
| if (bounds.height() > max_height) |
| bounds.set_height(max_height); |
| |
| // Reposition dragged panel in the panel order. |
| if (dragged_panel_ == child) { |
| PanelList::iterator dragged_panel_iter = |
| std::find(panel_windows_.begin(), panel_windows_.end(), dragged_panel_); |
| DCHECK(dragged_panel_iter != panel_windows_.end()); |
| PanelList::iterator new_position; |
| for (new_position = panel_windows_.begin(); |
| new_position != panel_windows_.end(); |
| ++new_position) { |
| const gfx::Rect& bounds = (*new_position).window->bounds(); |
| if (bounds.x() + bounds.width()/2 <= requested_bounds.x()) break; |
| } |
| if (new_position != dragged_panel_iter) { |
| PanelInfo dragged_panel_info = *dragged_panel_iter; |
| panel_windows_.erase(dragged_panel_iter); |
| panel_windows_.insert(new_position, dragged_panel_info); |
| } |
| } |
| |
| SetChildBoundsDirect(child, bounds); |
| Relayout(); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // PanelLayoutManager, ShelfIconObserver implementation: |
| |
| void PanelLayoutManager::OnShelfIconPositionsChanged() { |
| // TODO: As this is called for every animation step now. Relayout needs to be |
| // updated to use current icon position instead of use the ideal bounds so |
| // that the panels slide with their icons instead of jumping. |
| Relayout(); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // PanelLayoutManager, ash::ShellObserver implementation: |
| |
| void PanelLayoutManager::OnShelfAlignmentChanged(aura::Window* root_window) { |
| if (panel_container_->GetRootWindow() == root_window) |
| Relayout(); |
| } |
| |
| ///////////////////////////////////////////////////////////////////////////// |
| // PanelLayoutManager, WindowObserver implementation: |
| |
| void PanelLayoutManager::OnWindowShowTypeChanged( |
| wm::WindowState* window_state, |
| wm::WindowShowType old_type) { |
| // The window property will still be set, but no actual change will occur |
| // until WillChangeVisibilityState is called when the shelf is visible again. |
| if (shelf_hidden_) |
| return; |
| if (window_state->IsMinimized()) |
| MinimizePanel(window_state->window()); |
| else |
| RestorePanel(window_state->window()); |
| } |
| |
| void PanelLayoutManager::OnWindowVisibilityChanged( |
| aura::Window* window, bool visible) { |
| if (visible) |
| wm::GetWindowState(window)->Restore(); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // PanelLayoutManager, aura::client::ActivationChangeObserver implementation: |
| |
| void PanelLayoutManager::OnWindowActivated(aura::Window* gained_active, |
| aura::Window* lost_active) { |
| // Ignore if the panel that is not managed by this was activated. |
| if (gained_active && |
| gained_active->type() == aura::client::WINDOW_TYPE_PANEL && |
| gained_active->parent() == panel_container_) { |
| UpdateStacking(gained_active); |
| UpdateCallouts(); |
| } |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // PanelLayoutManager, DisplayController::Observer implementation: |
| |
| void PanelLayoutManager::OnDisplayConfigurationChanged() { |
| Relayout(); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // PanelLayoutManager, ShelfLayoutManagerObserver implementation: |
| |
| void PanelLayoutManager::WillChangeVisibilityState( |
| ShelfVisibilityState new_state) { |
| // On entering / leaving full screen mode the shelf visibility state is |
| // changed to / from SHELF_HIDDEN. In this state, panel windows should hide |
| // to allow the full-screen application to use the full screen. |
| shelf_hidden_ = new_state == ash::SHELF_HIDDEN; |
| for (PanelList::iterator iter = panel_windows_.begin(); |
| iter != panel_windows_.end(); ++iter) { |
| if (shelf_hidden_) { |
| if (iter->window->IsVisible()) |
| MinimizePanel(iter->window); |
| } else { |
| if (!wm::GetWindowState(iter->window)->IsMinimized()) |
| RestorePanel(iter->window); |
| } |
| } |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // PanelLayoutManager private implementation: |
| |
| void PanelLayoutManager::MinimizePanel(aura::Window* panel) { |
| views::corewm::SetWindowVisibilityAnimationType( |
| panel, WINDOW_VISIBILITY_ANIMATION_TYPE_MINIMIZE); |
| ui::Layer* layer = panel->layer(); |
| ui::ScopedLayerAnimationSettings panel_slide_settings(layer->GetAnimator()); |
| panel_slide_settings.SetPreemptionStrategy( |
| ui::LayerAnimator::IMMEDIATELY_ANIMATE_TO_NEW_TARGET); |
| panel_slide_settings.SetTransitionDuration( |
| base::TimeDelta::FromMilliseconds(kPanelSlideDurationMilliseconds)); |
| gfx::Rect bounds(panel->bounds()); |
| bounds.Offset(GetSlideInAnimationOffset( |
| launcher_->shelf_widget()->GetAlignment())); |
| SetChildBoundsDirect(panel, bounds); |
| panel->Hide(); |
| PanelList::iterator found = |
| std::find(panel_windows_.begin(), panel_windows_.end(), panel); |
| if (found != panel_windows_.end()) { |
| layer->SetOpacity(0); |
| // The next time the window is visible it should slide into place. |
| found->slide_in = true; |
| } |
| if (wm::IsActiveWindow(panel)) |
| wm::DeactivateWindow(panel); |
| Relayout(); |
| } |
| |
| void PanelLayoutManager::RestorePanel(aura::Window* panel) { |
| panel->Show(); |
| Relayout(); |
| } |
| |
| void PanelLayoutManager::Relayout() { |
| if (!launcher_ || !launcher_->shelf_widget()) |
| return; |
| |
| if (in_layout_) |
| return; |
| base::AutoReset<bool> auto_reset_in_layout(&in_layout_, true); |
| |
| ShelfAlignment alignment = launcher_->shelf_widget()->GetAlignment(); |
| bool horizontal = alignment == SHELF_ALIGNMENT_TOP || |
| alignment == SHELF_ALIGNMENT_BOTTOM; |
| gfx::Rect launcher_bounds = ash::ScreenAsh::ConvertRectFromScreen( |
| panel_container_, launcher_->shelf_widget()->GetWindowBoundsInScreen()); |
| int panel_start_bounds = kPanelIdealSpacing; |
| int panel_end_bounds = horizontal ? |
| panel_container_->bounds().width() - kPanelIdealSpacing : |
| panel_container_->bounds().height() - kPanelIdealSpacing; |
| aura::Window* active_panel = NULL; |
| std::vector<VisiblePanelPositionInfo> visible_panels; |
| for (PanelList::iterator iter = panel_windows_.begin(); |
| iter != panel_windows_.end(); ++iter) { |
| aura::Window* panel = iter->window; |
| iter->callout_widget->SetAlignment(alignment); |
| |
| // Consider the dragged panel as part of the layout as long as it is |
| // touching the launcher. |
| if (!panel->IsVisible() || |
| (panel == dragged_panel_ && |
| !BoundsAdjacent(panel->bounds(), launcher_bounds))) { |
| continue; |
| } |
| |
| // If the shelf is currently hidden (full-screen mode), hide panel until |
| // full-screen mode is exited. |
| if (shelf_hidden_) { |
| // The call to Hide does not set the minimize property, so the window will |
| // be restored when the shelf becomes visible again. |
| panel->Hide(); |
| continue; |
| } |
| |
| gfx::Rect icon_bounds = |
| launcher_->GetScreenBoundsOfItemIconForWindow(panel); |
| |
| // If both the icon width and height are 0 then there is no icon in the |
| // launcher. If the launcher is hidden, one of the height or width will be |
| // 0 but the position in the launcher and major dimension is still reported |
| // correctly and the panel can be aligned above where the hidden icon is. |
| if (icon_bounds.width() == 0 && icon_bounds.height() == 0) |
| continue; |
| |
| if (panel->HasFocus() || |
| panel->Contains( |
| aura::client::GetFocusClient(panel)->GetFocusedWindow())) { |
| DCHECK(!active_panel); |
| active_panel = panel; |
| } |
| icon_bounds = ScreenAsh::ConvertRectFromScreen(panel_container_, |
| icon_bounds); |
| gfx::Point icon_origin = icon_bounds.origin(); |
| VisiblePanelPositionInfo position_info; |
| int icon_start = horizontal ? icon_origin.x() : icon_origin.y(); |
| int icon_end = icon_start + (horizontal ? icon_bounds.width() : |
| icon_bounds.height()); |
| position_info.major_length = horizontal ? |
| panel->bounds().width() : panel->bounds().height(); |
| position_info.min_major = std::max( |
| panel_start_bounds + position_info.major_length / 2, |
| icon_end - position_info.major_length / 2); |
| position_info.max_major = std::min( |
| icon_start + position_info.major_length / 2, |
| panel_end_bounds - position_info.major_length / 2); |
| position_info.major_pos = (icon_start + icon_end) / 2; |
| position_info.window = panel; |
| position_info.slide_in = iter->slide_in; |
| iter->slide_in = false; |
| visible_panels.push_back(position_info); |
| } |
| |
| // Sort panels by their X positions and fan out groups of overlapping panels. |
| // The fan out method may result in new overlapping panels however given that |
| // the panels start at least a full panel width apart this overlap will |
| // never completely obscure a panel. |
| // TODO(flackr): Rearrange panels if new overlaps are introduced. |
| std::sort(visible_panels.begin(), visible_panels.end(), CompareWindowMajor); |
| size_t first_overlapping_panel = 0; |
| for (size_t i = 1; i < visible_panels.size(); ++i) { |
| if (visible_panels[i - 1].major_pos + |
| visible_panels[i - 1].major_length / 2 < visible_panels[i].major_pos - |
| visible_panels[i].major_length / 2) { |
| FanOutPanels(visible_panels.begin() + first_overlapping_panel, |
| visible_panels.begin() + i); |
| first_overlapping_panel = i; |
| } |
| } |
| FanOutPanels(visible_panels.begin() + first_overlapping_panel, |
| visible_panels.end()); |
| |
| for (size_t i = 0; i < visible_panels.size(); ++i) { |
| if (visible_panels[i].window == dragged_panel_) |
| continue; |
| bool slide_in = visible_panels[i].slide_in; |
| gfx::Rect bounds = visible_panels[i].window->GetTargetBounds(); |
| switch (alignment) { |
| case SHELF_ALIGNMENT_BOTTOM: |
| bounds.set_y(launcher_bounds.y() - bounds.height()); |
| break; |
| case SHELF_ALIGNMENT_LEFT: |
| bounds.set_x(launcher_bounds.right()); |
| break; |
| case SHELF_ALIGNMENT_RIGHT: |
| bounds.set_x(launcher_bounds.x() - bounds.width()); |
| break; |
| case SHELF_ALIGNMENT_TOP: |
| bounds.set_y(launcher_bounds.bottom()); |
| break; |
| } |
| bool on_launcher = visible_panels[i].window->GetTargetBounds() == bounds; |
| |
| if (horizontal) { |
| bounds.set_x(visible_panels[i].major_pos - |
| visible_panels[i].major_length / 2); |
| } else { |
| bounds.set_y(visible_panels[i].major_pos - |
| visible_panels[i].major_length / 2); |
| } |
| |
| ui::Layer* layer = visible_panels[i].window->layer(); |
| if (slide_in) { |
| // New windows shift up from the launcher into position. |
| gfx::Rect initial_bounds(bounds); |
| initial_bounds.Offset(GetSlideInAnimationOffset(alignment)); |
| SetChildBoundsDirect(visible_panels[i].window, initial_bounds); |
| // Set on launcher so that the panel animates into its target position. |
| on_launcher = true; |
| } |
| |
| if (on_launcher) { |
| ui::ScopedLayerAnimationSettings panel_slide_settings( |
| layer->GetAnimator()); |
| panel_slide_settings.SetPreemptionStrategy( |
| ui::LayerAnimator::IMMEDIATELY_ANIMATE_TO_NEW_TARGET); |
| panel_slide_settings.SetTransitionDuration( |
| base::TimeDelta::FromMilliseconds(kPanelSlideDurationMilliseconds)); |
| SetChildBoundsDirect(visible_panels[i].window, bounds); |
| if (slide_in) |
| layer->SetOpacity(1); |
| } else { |
| // If the launcher moved don't animate, move immediately to the new |
| // target location. |
| SetChildBoundsDirect(visible_panels[i].window, bounds); |
| } |
| } |
| |
| UpdateStacking(active_panel); |
| UpdateCallouts(); |
| } |
| |
| void PanelLayoutManager::UpdateStacking(aura::Window* active_panel) { |
| if (!active_panel) { |
| if (!last_active_panel_) |
| return; |
| active_panel = last_active_panel_; |
| } |
| |
| ShelfAlignment alignment = launcher_->alignment(); |
| bool horizontal = alignment == SHELF_ALIGNMENT_TOP || |
| alignment == SHELF_ALIGNMENT_BOTTOM; |
| |
| // We want to to stack the panels like a deck of cards: |
| // ,--,--,--,-------.--.--. |
| // | | | | | | | |
| // | | | | | | | |
| // |
| // We use the middle of each panel to figure out how to stack the panels. This |
| // allows us to update the stacking when a panel is being dragged around by |
| // the titlebar--even though it doesn't update the launcher icon positions, we |
| // still want the visual effect. |
| std::map<int, aura::Window*> window_ordering; |
| for (PanelList::const_iterator it = panel_windows_.begin(); |
| it != panel_windows_.end(); ++it) { |
| gfx::Rect bounds = it->window->bounds(); |
| window_ordering.insert(std::make_pair(horizontal ? |
| bounds.x() + bounds.width() / 2 : |
| bounds.y() + bounds.height() / 2, |
| it->window)); |
| } |
| |
| aura::Window* previous_panel = NULL; |
| for (std::map<int, aura::Window*>::const_iterator it = |
| window_ordering.begin(); |
| it != window_ordering.end() && it->second != active_panel; ++it) { |
| if (previous_panel) |
| panel_container_->StackChildAbove(it->second, previous_panel); |
| previous_panel = it->second; |
| } |
| |
| previous_panel = NULL; |
| for (std::map<int, aura::Window*>::const_reverse_iterator it = |
| window_ordering.rbegin(); |
| it != window_ordering.rend() && it->second != active_panel; ++it) { |
| if (previous_panel) |
| panel_container_->StackChildAbove(it->second, previous_panel); |
| previous_panel = it->second; |
| } |
| |
| panel_container_->StackChildAtTop(active_panel); |
| if (dragged_panel_ && dragged_panel_->parent() == panel_container_) |
| panel_container_->StackChildAtTop(dragged_panel_); |
| last_active_panel_ = active_panel; |
| } |
| |
| void PanelLayoutManager::UpdateCallouts() { |
| ShelfAlignment alignment = launcher_->alignment(); |
| bool horizontal = alignment == SHELF_ALIGNMENT_TOP || |
| alignment == SHELF_ALIGNMENT_BOTTOM; |
| |
| for (PanelList::iterator iter = panel_windows_.begin(); |
| iter != panel_windows_.end(); ++iter) { |
| aura::Window* panel = iter->window; |
| views::Widget* callout_widget = iter->callout_widget; |
| |
| gfx::Rect current_bounds = panel->GetBoundsInScreen(); |
| gfx::Rect bounds = ScreenAsh::ConvertRectToScreen(panel->parent(), |
| panel->GetTargetBounds()); |
| gfx::Rect icon_bounds = |
| launcher_->GetScreenBoundsOfItemIconForWindow(panel); |
| if (icon_bounds.IsEmpty() || !panel->layer()->GetTargetVisibility() || |
| panel == dragged_panel_) { |
| callout_widget->Hide(); |
| callout_widget->GetNativeWindow()->layer()->SetOpacity(0); |
| continue; |
| } |
| |
| gfx::Rect callout_bounds = callout_widget->GetWindowBoundsInScreen(); |
| gfx::Vector2d slide_vector = bounds.origin() - current_bounds.origin(); |
| int slide_distance = horizontal ? slide_vector.x() : slide_vector.y(); |
| int distance_until_over_panel = 0; |
| if (horizontal) { |
| callout_bounds.set_x( |
| icon_bounds.x() + (icon_bounds.width() - callout_bounds.width()) / 2); |
| distance_until_over_panel = std::max( |
| current_bounds.x() - callout_bounds.x(), |
| callout_bounds.right() - current_bounds.right()); |
| } else { |
| callout_bounds.set_y( |
| icon_bounds.y() + (icon_bounds.height() - |
| callout_bounds.height()) / 2); |
| distance_until_over_panel = std::max( |
| current_bounds.y() - callout_bounds.y(), |
| callout_bounds.bottom() - current_bounds.bottom()); |
| } |
| switch (alignment) { |
| case SHELF_ALIGNMENT_BOTTOM: |
| callout_bounds.set_y(bounds.bottom()); |
| break; |
| case SHELF_ALIGNMENT_LEFT: |
| callout_bounds.set_x(bounds.x() - callout_bounds.width()); |
| break; |
| case SHELF_ALIGNMENT_RIGHT: |
| callout_bounds.set_x(bounds.right()); |
| break; |
| case SHELF_ALIGNMENT_TOP: |
| callout_bounds.set_y(bounds.y() - callout_bounds.height()); |
| break; |
| } |
| callout_bounds = ScreenAsh::ConvertRectFromScreen( |
| callout_widget->GetNativeWindow()->parent(), |
| callout_bounds); |
| |
| SetChildBoundsDirect(callout_widget->GetNativeWindow(), callout_bounds); |
| panel_container_->StackChildAbove(callout_widget->GetNativeWindow(), |
| panel); |
| callout_widget->Show(); |
| |
| ui::Layer* layer = callout_widget->GetNativeWindow()->layer(); |
| // If the panel is not over the callout position or has just become visible |
| // then fade in the callout. |
| if ((distance_until_over_panel > 0 || layer->GetTargetOpacity() < 1) && |
| panel->layer()->GetTargetTransform().IsIdentity()) { |
| if (distance_until_over_panel > 0 && |
| slide_distance >= distance_until_over_panel) { |
| layer->SetOpacity(0); |
| // If the panel is not yet over the callout, then delay fading in |
| // the callout until after the panel should be over it. |
| int delay = kPanelSlideDurationMilliseconds * |
| distance_until_over_panel / slide_distance; |
| layer->SetOpacity(0); |
| layer->GetAnimator()->StopAnimating(); |
| layer->GetAnimator()->SchedulePauseForProperties( |
| base::TimeDelta::FromMilliseconds(delay), |
| ui::LayerAnimationElement::OPACITY); |
| } |
| { |
| ui::ScopedLayerAnimationSettings callout_settings(layer->GetAnimator()); |
| callout_settings.SetPreemptionStrategy( |
| ui::LayerAnimator::REPLACE_QUEUED_ANIMATIONS); |
| callout_settings.SetTransitionDuration( |
| base::TimeDelta::FromMilliseconds( |
| kCalloutFadeDurationMilliseconds)); |
| layer->SetOpacity(1); |
| } |
| } |
| } |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // keyboard::KeyboardControllerObserver implementation: |
| |
| void PanelLayoutManager::OnKeyboardBoundsChanging( |
| const gfx::Rect& keyboard_bounds) { |
| // This bounds change will have caused a change to the Shelf which does not |
| // propogate automatically to this class, so manually recalculate bounds. |
| OnWindowResized(); |
| } |
| |
| } // namespace internal |
| } // namespace ash |