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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/renderer_context_menu/accessibility_labels_menu_observer.h"
#include <utility>
#include "base/functional/bind.h"
#include "base/metrics/histogram_macros.h"
#include "base/strings/utf_string_conversions.h"
#include "chrome/app/chrome_command_ids.h"
#include "chrome/browser/accessibility/accessibility_labels_service.h"
#include "chrome/browser/accessibility/accessibility_labels_service_factory.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/renderer_context_menu/accessibility_labels_bubble_model.h"
#include "chrome/browser/renderer_context_menu/render_view_context_menu.h"
#include "chrome/browser/ui/confirm_bubble.h"
#include "chrome/common/pref_names.h"
#include "chrome/grit/generated_resources.h"
#include "components/prefs/pref_service.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/context_menu_params.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/render_widget_host.h"
#include "content/public/browser/render_widget_host_view.h"
#include "content/public/browser/web_contents.h"
#include "ui/accessibility/platform/ax_platform.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/gfx/geometry/rect.h"
using content::BrowserThread;
AccessibilityLabelsMenuObserver::AccessibilityLabelsMenuObserver(
RenderViewContextMenuProxy* proxy)
: proxy_(proxy) {}
AccessibilityLabelsMenuObserver::~AccessibilityLabelsMenuObserver() = default;
void AccessibilityLabelsMenuObserver::InitMenu(
const content::ContextMenuParams& params) {
Profile* profile = Profile::FromBrowserContext(proxy_->GetBrowserContext());
if (ShouldShowLabelsItem()) {
proxy_->AddAccessibilityLabelsServiceItem(profile->GetPrefs()->GetBoolean(
prefs::kAccessibilityImageLabelsEnabled));
}
}
bool AccessibilityLabelsMenuObserver::IsCommandIdSupported(int command_id) {
return command_id == IDC_CONTENT_CONTEXT_ACCESSIBILITY_LABELS_TOGGLE ||
command_id == IDC_CONTENT_CONTEXT_ACCESSIBILITY_LABELS ||
command_id == IDC_CONTENT_CONTEXT_ACCESSIBILITY_LABELS_TOGGLE_ONCE;
}
bool AccessibilityLabelsMenuObserver::IsCommandIdChecked(int command_id) {
DCHECK(IsCommandIdSupported(command_id));
Profile* profile = Profile::FromBrowserContext(proxy_->GetBrowserContext());
if (command_id == IDC_CONTENT_CONTEXT_ACCESSIBILITY_LABELS_TOGGLE ||
command_id == IDC_CONTENT_CONTEXT_ACCESSIBILITY_LABELS ||
command_id == IDC_CONTENT_CONTEXT_ACCESSIBILITY_LABELS_TOGGLE_ONCE) {
return profile->GetPrefs()->GetBoolean(
prefs::kAccessibilityImageLabelsEnabled);
}
return false;
}
bool AccessibilityLabelsMenuObserver::IsCommandIdEnabled(int command_id) {
DCHECK(IsCommandIdSupported(command_id));
if (command_id == IDC_CONTENT_CONTEXT_ACCESSIBILITY_LABELS_TOGGLE ||
command_id == IDC_CONTENT_CONTEXT_ACCESSIBILITY_LABELS ||
command_id == IDC_CONTENT_CONTEXT_ACCESSIBILITY_LABELS_TOGGLE_ONCE) {
return ShouldShowLabelsItem();
}
return false;
}
void AccessibilityLabelsMenuObserver::ExecuteCommand(int command_id) {
DCHECK(IsCommandIdSupported(command_id));
Profile* profile = Profile::FromBrowserContext(proxy_->GetBrowserContext());
if (command_id == IDC_CONTENT_CONTEXT_ACCESSIBILITY_LABELS_TOGGLE) {
// When a user enables the accessibility labeling item, we
// show a bubble to confirm it. On the other hand, when a user disables this
// item, we directly update/ the profile and stop integrating the labels
// service immediately.
if (!profile->GetPrefs()->GetBoolean(
prefs::kAccessibilityImageLabelsEnabled)) {
// Always show the confirm bubble when enabling the full feature,
// regardless of whether it's been shown before.
ShowConfirmBubble(profile, true /* enable always */);
} else {
profile->GetPrefs()->SetBoolean(prefs::kAccessibilityImageLabelsEnabled,
false);
}
} else if (command_id ==
IDC_CONTENT_CONTEXT_ACCESSIBILITY_LABELS_TOGGLE_ONCE) {
// Only show the confirm bubble if it's never been shown before.
if (!profile->GetPrefs()->GetBoolean(
prefs::kAccessibilityImageLabelsOptInAccepted)) {
ShowConfirmBubble(profile, false /* enable once only */);
} else {
AccessibilityLabelsServiceFactory::GetForProfile(profile)
->EnableLabelsServiceOnce(proxy_->GetWebContents());
}
}
}
bool AccessibilityLabelsMenuObserver::ShouldShowLabelsItem() {
// Disabled by policy.
Profile* profile = Profile::FromBrowserContext(proxy_->GetBrowserContext());
if (!profile->GetPrefs()->GetBoolean(
prefs::kAccessibilityImageLabelsEnabled) &&
profile->GetPrefs()->IsManagedPreference(
prefs::kAccessibilityImageLabelsEnabled)) {
return false;
}
return ui::AXPlatform::GetInstance().IsScreenReaderActive();
}
void AccessibilityLabelsMenuObserver::ShowConfirmBubble(Profile* profile,
bool enable_always) {
content::WebContents* web_contents = proxy_->GetWebContents();
// We use the web contents' primary main frame here rather than getting the
// view from the local render frame host because we want to ensure that it is
// non-null (proxy_->GetRenderFrameHost() can return nullptr if the frame goes
// away). In these cases, the spelling preference changes are still valid
// (tied to the BrowsingContext / WebContents) so we still want to show the
// confirmation bubble.
content::RenderWidgetHostView* view =
web_contents->GetPrimaryMainFrame()->GetRenderWidgetHost()->GetView();
gfx::Rect rect = view->GetViewBounds();
auto model = std::make_unique<AccessibilityLabelsBubbleModel>(
profile, web_contents, enable_always);
chrome::ShowConfirmBubble(
web_contents->GetTopLevelNativeWindow(), view->GetNativeView(),
gfx::Point(rect.CenterPoint().x(), rect.y()), std::move(model));
}
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