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- // Copyright 2019 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 "components/ui_devtools/views/overlay_agent_mac.h"
- #import <Cocoa/Cocoa.h>
- #include "components/ui_devtools/views/view_element.h"
- #include "components/ui_devtools/views/widget_element.h"
- namespace ui_devtools {
- OverlayAgentMac::OverlayAgentMac(DOMAgent* dom_agent)
- : OverlayAgentViews(dom_agent) {}
- OverlayAgentMac::~OverlayAgentMac() {
- if (is_pretarget_handler_)
- RemovePreTargetHandler();
- CHECK(!IsInObserverList());
- }
- void OverlayAgentMac::InstallPreTargetHandler() {
- DCHECK(!is_pretarget_handler_);
- is_pretarget_handler_ = true;
- for (NSWindow* window in [NSApp windows]) {
- InstallPreTargetHandlerOnWidget(
- views::Widget::GetWidgetForNativeWindow(window));
- }
- }
- void OverlayAgentMac::RemovePreTargetHandler() {
- DCHECK(is_pretarget_handler_);
- is_pretarget_handler_ = false;
- for (NSWindow* window in [NSApp windows]) {
- views::Widget* widget = views::Widget::GetWidgetForNativeWindow(window);
- RemovePreTargetHandlerOnWidget(widget);
- }
- }
- void OverlayAgentMac::OnElementAdded(UIElement* element) {
- if (!is_pretarget_handler_ || element->type() != UIElementType::WIDGET)
- return;
- views::Widget* widget =
- UIElement::GetBackingElement<views::Widget, WidgetElement>(element);
- InstallPreTargetHandlerOnWidget(widget);
- }
- void OverlayAgentMac::OnWidgetDestroying(views::Widget* widget) {
- if (!is_pretarget_handler_)
- return;
- RemovePreTargetHandlerOnWidget(widget);
- }
- int OverlayAgentMac::FindElementIdTargetedByPoint(
- ui::LocatedEvent* event) const {
- views::View* target = static_cast<views::View*>(event->target());
- gfx::Point p = event->root_location();
- views::View* targeted_view = target->GetEventHandlerForPoint(p);
- DCHECK(targeted_view);
- return dom_agent()
- ->element_root()
- ->FindUIElementIdForBackendElement<views::View>(targeted_view);
- }
- protocol::Response OverlayAgentMac::enable() {
- dom_agent()->AddObserver(this);
- return OverlayAgentViews::enable();
- }
- protocol::Response OverlayAgentMac::disable() {
- if (is_pretarget_handler_)
- RemovePreTargetHandler();
- hideHighlight();
- dom_agent()->RemoveObserver(this);
- return OverlayAgentViews::disable();
- }
- void OverlayAgentMac::InstallPreTargetHandlerOnWidget(views::Widget* widget) {
- if (!widget)
- return;
- widget->GetRootView()->AddPreTargetHandler(
- this, ui::EventTarget::Priority::kSystem);
- widget->AddObserver(this);
- }
- void OverlayAgentMac::RemovePreTargetHandlerOnWidget(views::Widget* widget) {
- if (!widget)
- return;
- widget->GetRootView()->RemovePreTargetHandler(this);
- widget->RemoveObserver(this);
- }
- // static
- std::unique_ptr<OverlayAgentViews> OverlayAgentViews::Create(
- DOMAgent* dom_agent) {
- return std::make_unique<OverlayAgentMac>(dom_agent);
- }
- } // namespace ui_devtools
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