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// Copyright 2017 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/touch_selection_controller_client_manager_android.h"
#include "content/browser/renderer_host/render_widget_host_view_android.h"
namespace content {
TouchSelectionControllerClientManagerAndroid::
TouchSelectionControllerClientManagerAndroid(
RenderWidgetHostViewAndroid* rwhv)
: rwhv_(rwhv), active_client_(rwhv), page_scale_factor_(1.f) {
DCHECK(rwhv_);
}
TouchSelectionControllerClientManagerAndroid::
~TouchSelectionControllerClientManagerAndroid() {
for (auto& observer : observers_)
observer.OnManagerWillDestroy(this);
}
void TouchSelectionControllerClientManagerAndroid::SetPageScaleFactor(
float page_scale_factor) {
page_scale_factor_ = page_scale_factor;
}
namespace {
gfx::SelectionBound ScaleSelectionBound(const gfx::SelectionBound& bound,
float scale) {
gfx::SelectionBound scaled_bound;
gfx::PointF scaled_top = bound.edge_top();
scaled_top.Scale(scale);
gfx::PointF scaled_bottom = bound.edge_bottom();
scaled_bottom.Scale(scale);
scaled_bound.SetEdge(scaled_top, scaled_bottom);
scaled_bound.set_type(bound.type());
scaled_bound.set_visible(bound.visible());
return scaled_bound;
}
} // namespace
// TouchSelectionControllerClientManager implementation.
void TouchSelectionControllerClientManagerAndroid::DidStopFlinging() {
// TODO(wjmaclean): determine what, if anything, needs to happen here.
}
void TouchSelectionControllerClientManagerAndroid::UpdateClientSelectionBounds(
const gfx::SelectionBound& start,
const gfx::SelectionBound& end,
ui::TouchSelectionControllerClient* client,
ui::TouchSelectionMenuClient* menu_client) {
if (client != active_client_ &&
(start.type() == gfx::SelectionBound::EMPTY || !start.visible()) &&
(end.type() == gfx::SelectionBound::EMPTY || !end.visible()) &&
(manager_selection_start_.type() != gfx::SelectionBound::EMPTY ||
manager_selection_end_.type() != gfx::SelectionBound::EMPTY)) {
return;
}
active_client_ = client;
if (active_client_ != rwhv_) {
manager_selection_start_ = ScaleSelectionBound(start, page_scale_factor_);
manager_selection_end_ = ScaleSelectionBound(end, page_scale_factor_);
} else {
manager_selection_start_ = start;
manager_selection_end_ = end;
}
// Notify TouchSelectionController if anything should change here. Only
// update if the client is different and not making a change to empty, or
// is the same client.
if (GetTouchSelectionController()) {
GetTouchSelectionController()->OnSelectionBoundsChanged(
manager_selection_start_, manager_selection_end_);
}
}
void TouchSelectionControllerClientManagerAndroid::InvalidateClient(
ui::TouchSelectionControllerClient* client) {
if (active_client_ == client)
active_client_ = rwhv_;
}
ui::TouchSelectionController*
TouchSelectionControllerClientManagerAndroid::GetTouchSelectionController() {
return rwhv_->touch_selection_controller();
}
void TouchSelectionControllerClientManagerAndroid::AddObserver(
Observer* observer) {
observers_.AddObserver(observer);
}
void TouchSelectionControllerClientManagerAndroid::RemoveObserver(
Observer* observer) {
observers_.RemoveObserver(observer);
}
// TouchSelectionControllerClient implementation.
bool TouchSelectionControllerClientManagerAndroid::SupportsAnimation() const {
return rwhv_->SupportsAnimation();
}
void TouchSelectionControllerClientManagerAndroid::SetNeedsAnimate() {
rwhv_->SetNeedsAnimate();
}
void TouchSelectionControllerClientManagerAndroid::MoveCaret(
const gfx::PointF& position) {
gfx::PointF scaled_position = position;
if (active_client_ != rwhv_)
scaled_position.Scale(1 / page_scale_factor_);
active_client_->MoveCaret(scaled_position);
}
void TouchSelectionControllerClientManagerAndroid::MoveRangeSelectionExtent(
const gfx::PointF& extent) {
gfx::PointF scaled_extent = extent;
if (active_client_ != rwhv_)
scaled_extent.Scale(1 / page_scale_factor_);
active_client_->MoveRangeSelectionExtent(scaled_extent);
}
void TouchSelectionControllerClientManagerAndroid::SelectBetweenCoordinates(
const gfx::PointF& base,
const gfx::PointF& extent) {
gfx::PointF scaled_extent = extent;
gfx::PointF scaled_base = base;
if (active_client_ != rwhv_) {
scaled_extent.Scale(1 / page_scale_factor_);
scaled_base.Scale(1 / page_scale_factor_);
}
active_client_->SelectBetweenCoordinates(scaled_base, scaled_extent);
}
void TouchSelectionControllerClientManagerAndroid::OnSelectionEvent(
ui::SelectionEventType event) {
// Always defer to the top-level RWHV TSC for this.
rwhv_->OnSelectionEvent(event);
}
void TouchSelectionControllerClientManagerAndroid::OnDragUpdate(
const gfx::PointF& position) {
rwhv_->OnDragUpdate(position);
}
std::unique_ptr<ui::TouchHandleDrawable>
TouchSelectionControllerClientManagerAndroid::CreateDrawable() {
return rwhv_->CreateDrawable();
}
void TouchSelectionControllerClientManagerAndroid::DidScroll() {
// Nothing needs to be done here.
}
} // namespace content
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