15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ash/wm/gestures/tray_gesture_handler.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ash/shell.h" 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ash/system/tray/system_tray.h" 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ash/system/tray/system_tray_bubble.h" 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/aura/window.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/compositor/layer.h" 12d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles)#include "ui/events/event.h" 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/gfx/transform.h" 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/views/widget/widget.h" 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const int kMinBubbleHeight = 13; 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace ash { 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)TrayGestureHandler::TrayGestureHandler() 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : widget_(NULL), 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) gesture_drag_amount_(0) { 232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // TODO(oshima): Support multiple display case. 242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SystemTray* tray = Shell::GetInstance()->GetPrimarySystemTray(); 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) tray->ShowDefaultView(BUBBLE_CREATE_NEW); 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SystemTrayBubble* bubble = tray->GetSystemBubble(); 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!bubble) 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bubble->bubble_view()->set_gesture_dragging(true); 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) widget_ = bubble->bubble_view()->GetWidget(); 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) widget_->AddObserver(this); 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) gfx::Rect bounds = widget_->GetWindowBoundsInScreen(); 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int height_change = bounds.height() - kMinBubbleHeight; 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bounds.set_height(kMinBubbleHeight); 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bounds.set_y(bounds.y() + height_change); 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) widget_->SetBounds(bounds); 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)TrayGestureHandler::~TrayGestureHandler() { 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (widget_) 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) widget_->RemoveObserver(this); 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool TrayGestureHandler::UpdateGestureDrag(const ui::GestureEvent& event) { 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CHECK_EQ(ui::ET_GESTURE_SCROLL_UPDATE, event.type()); 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!widget_) 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) gesture_drag_amount_ += event.details().scroll_y(); 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (gesture_drag_amount_ > 0 && gesture_drag_amount_ < kMinBubbleHeight) { 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) widget_->Close(); 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) gfx::Rect bounds = widget_->GetWindowBoundsInScreen(); 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int new_height = std::min( 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) kMinBubbleHeight + std::max(0, static_cast<int>(-gesture_drag_amount_)), 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) widget_->GetContentsView()->GetPreferredSize().height()); 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int height_change = bounds.height() - new_height; 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bounds.set_height(new_height); 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bounds.set_y(bounds.y() + height_change); 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) widget_->SetBounds(bounds); 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void TrayGestureHandler::CompleteGestureDrag(const ui::GestureEvent& event) { 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!widget_) 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) widget_->RemoveObserver(this); 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Close the widget if it hasn't been dragged enough. 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool should_close = false; 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int height = widget_->GetWindowBoundsInScreen().height(); 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int preferred_height = 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) widget_->GetContentsView()->GetPreferredSize().height(); 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (event.type() == ui::ET_GESTURE_SCROLL_END) { 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const float kMinThresholdGestureDrag = 0.4f; 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (height < preferred_height * kMinThresholdGestureDrag) 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) should_close = true; 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else if (event.type() == ui::ET_SCROLL_FLING_START) { 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const float kMinThresholdGestureDragExposeFling = 0.25f; 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const float kMinThresholdGestureFling = 1000.f; 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (height < preferred_height * kMinThresholdGestureDragExposeFling && 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) event.details().velocity_y() > -kMinThresholdGestureFling) 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) should_close = true; 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else { 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NOTREACHED(); 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (should_close) { 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) widget_->Close(); 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else { 955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SystemTrayBubble* bubble = 962a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) Shell::GetInstance()->GetPrimarySystemTray()->GetSystemBubble(); 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (bubble) 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bubble->bubble_view()->set_gesture_dragging(false); 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1022a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void TrayGestureHandler::OnWidgetDestroying(views::Widget* widget) { 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CHECK_EQ(widget_, widget); 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) widget_ = NULL; 1055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace ash 108