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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "chrome/browser/ui/views/panels/x11_panel_resizer.h" | |
| 6 | |
| 7 #include "chrome/browser/ui/panels/panel.h" | |
| 8 #include "chrome/browser/ui/panels/panel_manager.h" | |
| 9 #include "ui/aura/window.h" | |
| 10 #include "ui/aura/window_delegate.h" | |
| 11 #include "ui/base/hit_test.h" | |
| 12 #include "ui/events/event.h" | |
| 13 #include "ui/events/event_utils.h" | |
| 14 #include "ui/views/view.h" | |
| 15 | |
| 16 namespace { | |
| 17 | |
| 18 // Returns true if the window can be resized via |component|. | |
| 19 bool IsWindowBorder(int component) { | |
| 20 return component == HTBOTTOM || | |
| 21 component == HTBOTTOMLEFT || | |
| 22 component == HTBOTTOMRIGHT || | |
| 23 component == HTLEFT || | |
| 24 component == HTRIGHT || | |
| 25 component == HTTOP || | |
| 26 component == HTTOPLEFT || | |
| 27 component == HTTOPRIGHT; | |
| 28 } | |
| 29 | |
| 30 } // namespace | |
| 31 | |
| 32 X11PanelResizer::X11PanelResizer(Panel* panel, aura::Window* window) | |
| 33 : panel_(panel), | |
| 34 window_(window), | |
| 35 resize_state_(NOT_RESIZING), | |
| 36 resize_component_(HTNOWHERE) { | |
| 37 } | |
| 38 | |
| 39 X11PanelResizer::~X11PanelResizer() { | |
| 40 StopResizing(NULL, true); | |
| 41 } | |
| 42 | |
| 43 void X11PanelResizer::OnMousePressed(ui::MouseEvent* event) { | |
| 44 if (resize_state_ != NOT_RESIZING || | |
| 45 event->type() != ui::ET_MOUSE_PRESSED || | |
| 46 !event->IsLeftMouseButton() || | |
| 47 !event->HasNativeEvent()) { | |
| 48 return; | |
| 49 } | |
| 50 | |
| 51 int component = window_->delegate()->GetNonClientComponent(event->location()); | |
| 52 if (!IsWindowBorder(component)) | |
| 53 return; | |
| 54 | |
| 55 // Set capture so that we get notified of all subsequent events. | |
| 56 window_->SetCapture(); | |
| 57 | |
| 58 resize_state_ = RESIZE_CAN_START; | |
| 59 initial_press_location_in_screen_ = ui::EventSystemLocationFromNative( | |
| 60 event->native_event()); | |
| 61 resize_component_ = component; | |
| 62 event->StopPropagation(); | |
| 63 } | |
| 64 | |
| 65 void X11PanelResizer::OnMouseDragged(ui::MouseEvent* event) { | |
| 66 if (resize_state_ != RESIZE_CAN_START && | |
| 67 resize_state_ != RESIZE_IN_PROGRESS) { | |
| 68 return; | |
| 69 } | |
| 70 | |
| 71 if (!event->HasNativeEvent()) | |
| 72 return; | |
| 73 | |
| 74 // Get the location in screen coordinates from the XEvent because converting | |
| 75 // the mouse location to screen coordinates using ScreenPositionClient returns | |
| 76 // an incorrect location while the panel is moving. See crbug.com/353393 for | |
| 77 // more details. | |
| 78 // TODO: Fix conversion to screen coordinates. | |
| 79 gfx::Point location_in_screen = ui::EventSystemLocationFromNative( | |
| 80 event->native_event()); | |
| 81 if (resize_state_ == RESIZE_CAN_START) { | |
| 82 gfx::Vector2d delta = | |
| 83 location_in_screen - initial_press_location_in_screen_; | |
| 84 if (views::View::ExceededDragThreshold(delta)) { | |
| 85 resize_state_ = RESIZE_IN_PROGRESS; | |
| 86 panel_->manager()->StartResizingByMouse(panel_, location_in_screen, | |
| 87 resize_component_); | |
| 88 } | |
| 89 } | |
| 90 | |
| 91 if (resize_state_ == RESIZE_IN_PROGRESS) | |
| 92 panel_->manager()->ResizeByMouse(location_in_screen); | |
| 93 | |
| 94 event->StopPropagation(); | |
| 95 } | |
| 96 | |
| 97 void X11PanelResizer::StopResizing(ui::MouseEvent* event, bool canceled) { | |
| 98 if (resize_state_ == NOT_RESIZING) | |
| 99 return; | |
| 100 | |
| 101 if (resize_state_ == RESIZE_IN_PROGRESS) { | |
| 102 panel_->manager()->EndResizingByMouse(canceled); | |
| 103 window_->ReleaseCapture(); | |
| 104 } | |
| 105 if (event) | |
| 106 event->StopPropagation(); | |
| 107 resize_state_ = NOT_RESIZING; | |
| 108 } | |
| 109 | |
| 110 void X11PanelResizer::OnMouseEvent(ui::MouseEvent* event) { | |
| 111 switch (event->type()) { | |
| 112 case ui::ET_MOUSE_PRESSED: | |
| 113 OnMousePressed(event); | |
| 114 break; | |
| 115 case ui::ET_MOUSE_DRAGGED: | |
| 116 OnMouseDragged(event); | |
| 117 break; | |
| 118 case ui::ET_MOUSE_RELEASED: | |
| 119 StopResizing(event, false); | |
| 120 break; | |
| 121 case ui::ET_MOUSE_CAPTURE_CHANGED: | |
| 122 StopResizing(event, true); | |
| 123 break; | |
| 124 default: | |
| 125 break; | |
| 126 } | |
| 127 } | |
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Chromium Code Reviews
Issue 2263863002:
Remove implementation of Panels on OSes other than ChromeOS. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master