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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#import "content/browser/renderer_host/text_input_client_mac.h"
#include "base/functional/bind.h"
#include "base/memory/singleton.h"
#include "base/metrics/histogram_macros.h"
#include "base/threading/thread_restrictions.h"
#include "base/time/time.h"
#include "content/browser/renderer_host/frame_tree.h"
#include "content/browser/renderer_host/frame_tree_node.h"
#include "content/browser/renderer_host/render_frame_host_impl.h"
#include "content/browser/renderer_host/render_widget_host_delegate.h"
#include "content/browser/renderer_host/render_widget_host_impl.h"
#include "content/common/features.h"
#include "ui/base/mojom/attributed_string.mojom.h"
namespace content {
namespace {
RenderFrameHostImpl* GetFocusedRenderFrameHostImpl(RenderWidgetHost* widget) {
RenderWidgetHostImpl* rwhi = RenderWidgetHostImpl::From(widget);
FrameTree* tree = rwhi->frame_tree();
FrameTreeNode* focused_node = tree->GetFocusedFrame();
return focused_node ? focused_node->current_frame_host() : nullptr;
}
} // namespace
TextInputClientMac::TextInputClientMac()
: character_index_(UINT32_MAX),
lock_(),
condition_(&lock_),
wait_timeout_(features::kTextInputClientIPCTimeout.Get()) {}
TextInputClientMac::~TextInputClientMac() {
}
// static
TextInputClientMac* TextInputClientMac::GetInstance() {
return base::Singleton<TextInputClientMac>::get();
}
void TextInputClientMac::GetStringAtPoint(RenderWidgetHost* rwh,
const gfx::Point& point,
GetStringCallback callback) {
RenderWidgetHostImpl* rwhi = RenderWidgetHostImpl::From(rwh);
if (rwhi && rwhi->GetAssociatedFrameWidget()) {
rwhi->GetAssociatedFrameWidget()->GetStringAtPoint(point,
std::move(callback));
} else {
std::move(callback).Run(nullptr, gfx::Point());
}
}
void TextInputClientMac::GetStringFromRange(RenderWidgetHost* rwh,
const gfx::Range& range,
GetStringCallback callback) {
RenderFrameHostImpl* rfhi = GetFocusedRenderFrameHostImpl(rwh);
// If it doesn't have a focused frame, it calls |callback| with
// an empty string and point.
if (!rfhi)
return std::move(callback).Run(nullptr, gfx::Point());
rfhi->GetAssociatedLocalFrame()->GetStringForRange(range,
std::move(callback));
}
uint32_t TextInputClientMac::GetCharacterIndexAtPoint(RenderWidgetHost* rwh,
const gfx::Point& point) {
RenderFrameHostImpl* rfhi = GetFocusedRenderFrameHostImpl(rwh);
// If it doesn't have a focused frame, it calls
// SetCharacterIndexAndSignal() with index 0.
if (!rfhi)
return 0;
rfhi->GetAssociatedLocalFrame()->GetCharacterIndexAtPoint(point);
base::TimeTicks start = base::TimeTicks::Now();
BeforeRequest();
// http://crbug.com/121917
base::ScopedAllowBaseSyncPrimitivesOutsideBlockingScope allow_wait;
condition_.TimedWait(wait_timeout_);
AfterRequest();
base::TimeDelta delta(base::TimeTicks::Now() - start);
UMA_HISTOGRAM_LONG_TIMES("TextInputClient.CharacterIndex",
delta * base::Time::kMicrosecondsPerMillisecond);
return character_index_;
}
gfx::Rect TextInputClientMac::GetFirstRectForRange(RenderWidgetHost* rwh,
const gfx::Range& range) {
RenderFrameHostImpl* rfhi = GetFocusedRenderFrameHostImpl(rwh);
if (!rfhi)
return gfx::Rect();
rfhi->GetAssociatedLocalFrame()->GetFirstRectForRange(range);
base::TimeTicks start = base::TimeTicks::Now();
BeforeRequest();
// http://crbug.com/121917
base::ScopedAllowBaseSyncPrimitivesOutsideBlockingScope allow_wait;
condition_.TimedWait(wait_timeout_);
AfterRequest();
base::TimeDelta delta(base::TimeTicks::Now() - start);
UMA_HISTOGRAM_LONG_TIMES("TextInputClient.FirstRect",
delta * base::Time::kMicrosecondsPerMillisecond);
// `first_rect_` is in (child) frame coordinate and needs to be transformed to
// the root frame coordinate.
return gfx::Rect(
rwh->GetView()->TransformPointToRootCoordSpace(first_rect_.origin()),
first_rect_.size());
}
void TextInputClientMac::SetCharacterIndexAndSignal(uint32_t index) {
lock_.Acquire();
character_index_ = index;
lock_.Release();
condition_.Signal();
}
void TextInputClientMac::SetFirstRectAndSignal(const gfx::Rect& first_rect) {
lock_.Acquire();
first_rect_ = first_rect;
lock_.Release();
condition_.Signal();
}
void TextInputClientMac::BeforeRequest() {
base::TimeTicks start = base::TimeTicks::Now();
lock_.Acquire();
base::TimeDelta delta(base::TimeTicks::Now() - start);
UMA_HISTOGRAM_LONG_TIMES("TextInputClient.LockWait",
delta * base::Time::kMicrosecondsPerMillisecond);
character_index_ = UINT32_MAX;
first_rect_ = gfx::Rect();
}
void TextInputClientMac::AfterRequest() {
lock_.Release();
}
} // namespace content
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