| // Copyright 2017 Google Inc. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include "cobalt/dom/mouse_event.h" |
| |
| #include <string> |
| |
| #include "cobalt/base/token.h" |
| #include "cobalt/dom/html_element.h" |
| |
| namespace cobalt { |
| namespace dom { |
| |
| MouseEvent::MouseEvent(const std::string& type) |
| : UIEventWithKeyState(base::Token(type), kBubbles, kCancelable, NULL), |
| screen_x_(0), |
| screen_y_(0), |
| client_x_(0), |
| client_y_(0), |
| button_(0), |
| buttons_(0) {} |
| |
| MouseEvent::MouseEvent(const std::string& type, const MouseEventInit& init_dict) |
| : UIEventWithKeyState(base::Token(type), kBubbles, kCancelable, |
| init_dict.view(), init_dict), |
| screen_x_(init_dict.screen_x()), |
| screen_y_(init_dict.screen_y()), |
| client_x_(init_dict.client_x()), |
| client_y_(init_dict.client_y()), |
| button_(init_dict.button()), |
| buttons_(init_dict.buttons()) {} |
| |
| MouseEvent::MouseEvent(base::Token type, const scoped_refptr<Window>& view, |
| const MouseEventInit& init_dict) |
| : UIEventWithKeyState(type, kBubbles, kCancelable, view, init_dict), |
| screen_x_(init_dict.screen_x()), |
| screen_y_(init_dict.screen_y()), |
| client_x_(init_dict.client_x()), |
| client_y_(init_dict.client_y()), |
| button_(init_dict.button()), |
| buttons_(init_dict.buttons()) {} |
| |
| MouseEvent::MouseEvent(base::Token type, Bubbles bubbles, Cancelable cancelable, |
| const scoped_refptr<Window>& view, |
| const MouseEventInit& init_dict) |
| : UIEventWithKeyState(type, bubbles, cancelable, view, init_dict), |
| screen_x_(init_dict.screen_x()), |
| screen_y_(init_dict.screen_y()), |
| client_x_(init_dict.client_x()), |
| client_y_(init_dict.client_y()), |
| button_(init_dict.button()), |
| buttons_(init_dict.buttons()) {} |
| |
| MouseEvent::MouseEvent(UninitializedFlag uninitialized_flag) |
| : UIEventWithKeyState(uninitialized_flag), |
| screen_x_(0), |
| screen_y_(0), |
| client_x_(0), |
| client_y_(0), |
| button_(0), |
| buttons_(0) {} |
| |
| void MouseEvent::InitMouseEvent( |
| const std::string& type, bool bubbles, bool cancelable, |
| const scoped_refptr<Window>& view, int32 detail, int32 screen_x, |
| int32 screen_y, int32 client_x, int32 client_y, bool ctrl_key, bool alt_key, |
| bool shift_key, bool meta_key, uint16 button, |
| const scoped_refptr<EventTarget>& related_target) { |
| InitUIEventWithKeyState(type, bubbles, cancelable, view, detail, ctrl_key, |
| alt_key, shift_key, meta_key); |
| screen_x_ = screen_x; |
| screen_y_ = screen_y; |
| client_x_ = client_x; |
| client_y_ = client_y; |
| button_ = button; |
| buttons_ = 0; |
| related_target_ = related_target; |
| } |
| |
| void MouseEvent::InitMouseEvent( |
| const std::string& type, bool bubbles, bool cancelable, |
| const scoped_refptr<Window>& view, int32 detail, int32 screen_x, |
| int32 screen_y, int32 client_x, int32 client_y, |
| const std::string& modifierslist, uint16 button, |
| const scoped_refptr<EventTarget>& related_target) { |
| InitUIEventWithKeyState(type, bubbles, cancelable, view, detail, |
| modifierslist); |
| screen_x_ = screen_x; |
| screen_y_ = screen_y; |
| client_x_ = client_x; |
| client_y_ = client_y; |
| button_ = button; |
| buttons_ = 0; |
| related_target_ = related_target; |
| } |
| |
| float MouseEvent::page_x() const { |
| // Algorithm for pageX |
| // https://www.w3.org/TR/2013/WD-cssom-view-20131217/#dom-mouseevent-pagex |
| |
| // In Cobalt all steps are equivalent to returning clientX. |
| return static_cast<float>(client_x()); |
| } |
| |
| float MouseEvent::page_y() const { |
| // Algorithm for pageY |
| // https://www.w3.org/TR/2013/WD-cssom-view-20131217/#dom-mouseevent-pagey |
| |
| // In Cobalt all steps are equivalent to returning clientY. |
| return static_cast<float>(client_y()); |
| } |
| |
| float MouseEvent::offset_x() { |
| // Algorithm for offsetX |
| // https://www.w3.org/TR/2013/WD-cssom-view-20131217/#dom-mouseevent-offsetx |
| |
| // If the event's dispatch flag is set, |
| if (IsBeingDispatched()) { |
| // return the x-coordinate of the position where the event occurred relative |
| // to the origin of the padding edge of the target node, ignoring the |
| // transforms that apply to the element and its ancestors and terminate |
| // these steps. |
| float target_node_padding_edge = 0.0f; |
| |
| Node* node = base::polymorphic_downcast<Node*>(target().get()); |
| if (node && node->IsElement()) { |
| scoped_refptr<HTMLElement> html_element = |
| node->AsElement()->AsHTMLElement(); |
| if (html_element && html_element->layout_boxes()) { |
| target_node_padding_edge = |
| html_element->layout_boxes()->GetPaddingEdgeLeft(); |
| } |
| } |
| return client_x() - target_node_padding_edge; |
| } |
| |
| // Return the value of the event's pageX attribute. |
| return page_x(); |
| } |
| |
| float MouseEvent::offset_y() const { |
| // Algorithm for offsetY |
| // https://www.w3.org/TR/2013/WD-cssom-view-20131217/#dom-mouseevent-offsety |
| |
| // If the event's dispatch flag is set, |
| if (IsBeingDispatched()) { |
| // return the y-coordinate of the position where the event occurred relative |
| // to the origin of the padding edge of the target node, ignoring the |
| // transforms that apply to the element and its ancestors, and terminate |
| // these steps. |
| float target_node_padding_edge = 0.0f; |
| |
| Node* node = base::polymorphic_downcast<Node*>(target().get()); |
| if (node && node->IsElement()) { |
| scoped_refptr<HTMLElement> html_element = |
| node->AsElement()->AsHTMLElement(); |
| if (html_element && html_element->layout_boxes()) { |
| target_node_padding_edge = |
| html_element->layout_boxes()->GetPaddingEdgeTop(); |
| } |
| } |
| return client_y() - target_node_padding_edge; |
| } |
| |
| // Return the value of the event's pageY attribute. |
| return page_y(); |
| } |
| |
| uint32 MouseEvent::which() const { return button_ + 1; } |
| |
| } // namespace dom |
| } // namespace cobalt |