| // Copyright 2015 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 "content/browser/renderer_host/input/synthetic_mouse_driver.h" |
| |
| #include "build/build_config.h" |
| #include "content/browser/renderer_host/input/synthetic_gesture_target.h" |
| #include "third_party/blink/public/common/input/synthetic_web_input_event_builders.h" |
| |
| namespace content { |
| |
| SyntheticMouseDriver::SyntheticMouseDriver() : last_modifiers_(0) { |
| mouse_event_.pointer_type = blink::WebPointerProperties::PointerType::kMouse; |
| } |
| |
| SyntheticMouseDriver::~SyntheticMouseDriver() {} |
| |
| void SyntheticMouseDriver::DispatchEvent(SyntheticGestureTarget* target, |
| const base::TimeTicks& timestamp) { |
| mouse_event_.SetTimeStamp(timestamp); |
| if (mouse_event_.GetType() != blink::WebInputEvent::Type::kUndefined) { |
| target->DispatchInputEventToPlatform(mouse_event_); |
| mouse_event_.SetType(blink::WebInputEvent::Type::kUndefined); |
| } |
| } |
| |
| void SyntheticMouseDriver::Press(float x, |
| float y, |
| int index, |
| SyntheticPointerActionParams::Button button, |
| int key_modifiers, |
| float width, |
| float height, |
| float rotation_angle, |
| float force, |
| float tangential_pressure, |
| int tilt_x, |
| int tilt_y, |
| const base::TimeTicks& timestamp) { |
| DCHECK_EQ(index, 0); |
| blink::WebMouseEvent::Button pressed_button = |
| SyntheticPointerActionParams::GetWebMouseEventButton(button); |
| click_count_ = ComputeClickCount(timestamp, pressed_button, x, y); |
| int modifiers = |
| SyntheticPointerActionParams::GetWebMouseEventModifier(button); |
| if (from_devtools_debugger_) |
| key_modifiers |= blink::WebInputEvent::kFromDebugger; |
| mouse_event_ = blink::SyntheticWebMouseEventBuilder::Build( |
| blink::WebInputEvent::Type::kMouseDown, x, y, |
| modifiers | key_modifiers | last_modifiers_, mouse_event_.pointer_type); |
| mouse_event_.button = pressed_button; |
| last_modifiers_ = modifiers | last_modifiers_; |
| mouse_event_.click_count = click_count_; |
| mouse_event_.force = force; |
| mouse_event_.tangential_pressure = tangential_pressure; |
| mouse_event_.twist = rotation_angle; |
| mouse_event_.tilt_x = tilt_x; |
| mouse_event_.tilt_y = tilt_y; |
| last_mouse_click_time_ = timestamp; |
| last_x_ = x; |
| last_y_ = y; |
| } |
| |
| void SyntheticMouseDriver::Move(float x, |
| float y, |
| int index, |
| int key_modifiers, |
| float width, |
| float height, |
| float rotation_angle, |
| float force, |
| float tangential_pressure, |
| int tilt_x, |
| int tilt_y, |
| SyntheticPointerActionParams::Button button) { |
| DCHECK_EQ(index, 0); |
| int button_modifiers = |
| SyntheticPointerActionParams::GetWebMouseEventModifier(button); |
| if (from_devtools_debugger_) |
| key_modifiers |= blink::WebInputEvent::kFromDebugger; |
| mouse_event_ = blink::SyntheticWebMouseEventBuilder::Build( |
| blink::WebInputEvent::Type::kMouseMove, x, y, |
| button_modifiers | key_modifiers | last_modifiers_, |
| mouse_event_.pointer_type); |
| if (button != SyntheticPointerActionParams::Button::NO_BUTTON) { |
| // If the caller specified a pressed button for this move event, use that. |
| mouse_event_.button = |
| SyntheticPointerActionParams::GetWebMouseEventButton(button); |
| } else { |
| // Otherwise, infer pressed button from a previous press event (if any) in |
| // the same pointer action sequence. |
| mouse_event_.button = |
| SyntheticPointerActionParams::GetWebMouseEventButtonFromModifier( |
| last_modifiers_); |
| } |
| mouse_event_.click_count = 0; |
| mouse_event_.force = |
| mouse_event_.button == blink::WebMouseEvent::Button::kNoButton ? 0 |
| : force; |
| mouse_event_.tangential_pressure = tangential_pressure; |
| mouse_event_.twist = rotation_angle; |
| mouse_event_.tilt_x = tilt_x; |
| mouse_event_.tilt_y = tilt_y; |
| } |
| |
| void SyntheticMouseDriver::Release(int index, |
| SyntheticPointerActionParams::Button button, |
| int key_modifiers) { |
| DCHECK_EQ(index, 0); |
| if (from_devtools_debugger_) |
| key_modifiers |= blink::WebInputEvent::kFromDebugger; |
| mouse_event_ = blink::SyntheticWebMouseEventBuilder::Build( |
| blink::WebInputEvent::Type::kMouseUp, mouse_event_.PositionInWidget().x(), |
| mouse_event_.PositionInWidget().y(), key_modifiers | last_modifiers_, |
| mouse_event_.pointer_type); |
| mouse_event_.button = |
| SyntheticPointerActionParams::GetWebMouseEventButton(button); |
| |
| // Set click count to 1 to allow pointer release without pointer down. This |
| // prevents MouseEvent::SetClickCount from throwing DCHECK error |
| click_count_ == 0 ? mouse_event_.click_count = 1 |
| : mouse_event_.click_count = click_count_; |
| last_modifiers_ = |
| last_modifiers_ & |
| (~SyntheticPointerActionParams::GetWebMouseEventModifier(button)); |
| } |
| |
| void SyntheticMouseDriver::Cancel(int index, |
| SyntheticPointerActionParams::Button button, |
| int key_modifiers) { |
| NOTIMPLEMENTED(); |
| } |
| |
| void SyntheticMouseDriver::Leave(int index) { |
| NOTIMPLEMENTED(); |
| } |
| |
| bool SyntheticMouseDriver::UserInputCheck( |
| const SyntheticPointerActionParams& params) const { |
| if (params.pointer_action_type() == |
| SyntheticPointerActionParams::PointerActionType::NOT_INITIALIZED) { |
| return false; |
| } |
| |
| if (params.pointer_action_type() == |
| SyntheticPointerActionParams::PointerActionType::PRESS) { |
| int modifiers = |
| SyntheticPointerActionParams::GetWebMouseEventModifier(params.button()); |
| if (last_modifiers_ & modifiers) |
| return false; |
| } |
| |
| if (params.pointer_action_type() == |
| SyntheticPointerActionParams::PointerActionType::RELEASE) { |
| int modifiers = |
| SyntheticPointerActionParams::GetWebMouseEventModifier(params.button()); |
| if (!modifiers) |
| return false; |
| } |
| |
| return true; |
| } |
| |
| int SyntheticMouseDriver::ComputeClickCount( |
| const base::TimeTicks& timestamp, |
| blink::WebMouseEvent::Button pressed_button, |
| float x, |
| float y) { |
| const int kDoubleClickTimeMS = 500; |
| const int kDoubleClickRange = 4; |
| |
| if (click_count_ == 0) |
| return 1; |
| |
| base::TimeDelta time_difference = timestamp - last_mouse_click_time_; |
| if (time_difference.InMilliseconds() > kDoubleClickTimeMS) |
| return 1; |
| |
| if (std::abs(x - last_x_) > kDoubleClickRange / 2) |
| return 1; |
| |
| if (std::abs(y - last_y_) > kDoubleClickRange / 2) |
| return 1; |
| |
| if (mouse_event_.button != pressed_button) |
| return 1; |
| |
| ++click_count_; |
| #if !defined(OS_MAC) && !defined(OS_WIN) |
| // On Mac and Windows, we keep incresing the click count, but on the other |
| // platforms, we reset the count to 1 when it is greater than 3. |
| if (click_count_ > 3) |
| click_count_ = 1; |
| #endif |
| return click_count_; |
| } |
| |
| } // namespace content |