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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.
#include "chrome/browser/ui/views/page_action/zoom_view.h"
#include "base/i18n/number_formatting.h"
#include "chrome/app/vector_icons/vector_icons.h"
#include "chrome/browser/ui/view_ids.h"
#include "chrome/browser/ui/views/location_bar/zoom_bubble_view.h"
#include "chrome/grit/generated_resources.h"
#include "components/omnibox/browser/location_bar_model.h"
#include "components/zoom/zoom_controller.h"
#include "ui/accessibility/ax_node_data.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/metadata/metadata_impl_macros.h"
#include "ui/events/event.h"
#include "ui/gfx/geometry/size.h"
#include "ui/views/accessibility/view_accessibility.h"
ZoomView::ZoomView(IconLabelBubbleView::Delegate* icon_label_bubble_delegate,
PageActionIconView::Delegate* page_action_icon_delegate)
: PageActionIconView(nullptr,
0,
icon_label_bubble_delegate,
page_action_icon_delegate,
"Zoom"),
icon_(&kZoomMinusIcon) {
SetVisible(false);
GetViewAccessibility().SetName(l10n_util::GetStringFUTF16(
IDS_TOOLTIP_ZOOM, base::FormatPercent(current_zoom_percent_)));
}
ZoomView::~ZoomView() = default;
void ZoomView::UpdateImpl() {
ZoomChangedForActiveTab(false);
}
bool ZoomView::ShouldBeVisible(bool can_show_bubble) const {
if (delegate()->ShouldHidePageActionIcons()) {
return false;
}
if (can_show_bubble) {
return true;
}
if (HasAssociatedBubble()) {
return true;
}
DCHECK(GetWebContents());
zoom::ZoomController* zoom_controller =
zoom::ZoomController::FromWebContents(GetWebContents());
return zoom_controller && !zoom_controller->IsAtDefaultZoom();
}
bool ZoomView::HasAssociatedBubble() const {
if (!GetBubble()) {
return false;
}
// Bubbles may be hosted in their own widget so use their anchor view as a
// more reliable way of determining whether this icon belongs to the same
// browser window.
if (!GetBubble()->GetAnchorView()) {
return false;
}
return GetBubble()->GetAnchorView()->GetWidget() == GetWidget();
}
void ZoomView::ZoomChangedForActiveTab(bool can_show_bubble) {
content::WebContents* web_contents = GetWebContents();
if (!web_contents) {
return;
}
if (ShouldBeVisible(can_show_bubble)) {
zoom::ZoomController* zoom_controller =
zoom::ZoomController::FromWebContents(web_contents);
current_zoom_percent_ = zoom_controller->GetZoomPercent();
GetViewAccessibility().SetName(l10n_util::GetStringFUTF16(
IDS_TOOLTIP_ZOOM, base::FormatPercent(current_zoom_percent_)));
// The icon is hidden when the zoom level is default.
icon_ = zoom_controller && zoom_controller->GetZoomRelativeToDefault() ==
zoom::ZoomController::ZOOM_BELOW_DEFAULT_ZOOM
? &kZoomMinusChromeRefreshIcon
: &kZoomPlusChromeRefreshIcon;
UpdateIconImage();
// Visibility must be enabled before the bubble is shown to ensure the
// bubble anchors correctly.
SetVisible(true);
if (can_show_bubble) {
ZoomBubbleView::ShowBubble(web_contents, ZoomBubbleView::AUTOMATIC);
} else {
ZoomBubbleView::RefreshBubbleIfShowing(web_contents);
}
} else {
// Close the bubble first to ensure focus is not lost when SetVisible(false)
// is called. See crbug.com/913829.
if (HasAssociatedBubble()) {
ZoomBubbleView::CloseCurrentBubble();
}
SetVisible(false);
}
}
void ZoomView::OnExecuting(PageActionIconView::ExecuteSource source) {
ZoomBubbleView::ShowBubble(GetWebContents(), ZoomBubbleView::USER_GESTURE);
}
views::BubbleDialogDelegate* ZoomView::GetBubble() const {
return ZoomBubbleView::GetZoomBubble();
}
const gfx::VectorIcon& ZoomView::GetVectorIcon() const {
return *icon_;
}
BEGIN_METADATA(ZoomView)
END_METADATA
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