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// Copyright 2018 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/overlay/resize_handle_button.h"
#include "chrome/app/vector_icons/vector_icons.h"
#include "chrome/browser/ui/color/chrome_color_id.h"
#include "chrome/grit/generated_resources.h"
#include "ui/base/hit_test.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/metadata/metadata_impl_macros.h"
#include "ui/base/models/image_model.h"
#include "ui/gfx/image/image_skia_operations.h"
#include "ui/gfx/paint_vector_icon.h"
#include "ui/gfx/skbitmap_operations.h"
#include "ui/views/accessibility/view_accessibility.h"
#include "ui/views/vector_icons.h"
namespace {
constexpr int kResizeHandleButtonMargin = 4;
constexpr int kResizeHandleButtonSize = 16;
} // namespace
ResizeHandleButton::ResizeHandleButton(PressedCallback callback)
: views::ImageButton(std::move(callback)) {
SetSize(gfx::Size(kResizeHandleButtonSize, kResizeHandleButtonSize));
// The ResizeHandleButton has no action and is just for display to hint to the
// user that the window can be dragged. It should not be focusable.
SetFocusBehavior(FocusBehavior::NEVER);
// Accessibility.
const std::u16string resize_button_label(
l10n_util::GetStringUTF16(IDS_PICTURE_IN_PICTURE_RESIZE_HANDLE_TEXT));
GetViewAccessibility().SetName(resize_button_label);
SetTooltipText(resize_button_label);
}
ResizeHandleButton::~ResizeHandleButton() = default;
void ResizeHandleButton::OnThemeChanged() {
views::ImageButton::OnThemeChanged();
UpdateImageForQuadrant();
}
int ResizeHandleButton::GetHTComponent() const {
switch (current_quadrant_) {
case VideoOverlayWindowViews::WindowQuadrant::kBottomLeft:
return HTTOPRIGHT;
case VideoOverlayWindowViews::WindowQuadrant::kBottomRight:
return HTTOPLEFT;
case VideoOverlayWindowViews::WindowQuadrant::kTopLeft:
return HTBOTTOMRIGHT;
case VideoOverlayWindowViews::WindowQuadrant::kTopRight:
return HTBOTTOMLEFT;
}
}
void ResizeHandleButton::SetPosition(
const gfx::Size& size,
VideoOverlayWindowViews::WindowQuadrant quadrant) {
// The resize handle should appear towards the center of the working area.
// This is determined as the opposite quadrant on the window.
switch (quadrant) {
case VideoOverlayWindowViews::WindowQuadrant::kBottomLeft:
views::ImageButton::SetPosition(gfx::Point(
size.width() - kResizeHandleButtonSize - kResizeHandleButtonMargin,
kResizeHandleButtonMargin));
break;
case VideoOverlayWindowViews::WindowQuadrant::kBottomRight:
views::ImageButton::SetPosition(
gfx::Point(kResizeHandleButtonMargin, kResizeHandleButtonMargin));
break;
case VideoOverlayWindowViews::WindowQuadrant::kTopLeft:
views::ImageButton::SetPosition(gfx::Point(
size.width() - kResizeHandleButtonSize - kResizeHandleButtonMargin,
size.height() - kResizeHandleButtonSize - kResizeHandleButtonMargin));
break;
case VideoOverlayWindowViews::WindowQuadrant::kTopRight:
views::ImageButton::SetPosition(gfx::Point(
kResizeHandleButtonMargin,
size.height() - kResizeHandleButtonSize - kResizeHandleButtonMargin));
break;
}
// Also rotate the icon to match the new corner.
SetQuadrant(quadrant);
}
void ResizeHandleButton::SetQuadrant(
VideoOverlayWindowViews::WindowQuadrant quadrant) {
if (current_quadrant_ == quadrant) {
return;
}
current_quadrant_ = quadrant;
if (GetWidget()) {
UpdateImageForQuadrant();
}
}
void ResizeHandleButton::UpdateImageForQuadrant() {
const SkColor color = GetColorProvider()->GetColor(kColorPipWindowForeground);
gfx::ImageSkia icon =
gfx::CreateVectorIcon(kResizeHandleIcon, kResizeHandleButtonSize, color);
switch (current_quadrant_) {
case VideoOverlayWindowViews::WindowQuadrant::kBottomLeft:
SetImageHorizontalAlignment(views::ImageButton::ALIGN_RIGHT);
SetImageVerticalAlignment(views::ImageButton::ALIGN_TOP);
break;
case VideoOverlayWindowViews::WindowQuadrant::kBottomRight:
SetImageHorizontalAlignment(views::ImageButton::ALIGN_LEFT);
SetImageVerticalAlignment(views::ImageButton::ALIGN_TOP);
icon = gfx::ImageSkiaOperations::CreateRotatedImage(
icon, SkBitmapOperations::ROTATION_270_CW);
break;
case VideoOverlayWindowViews::WindowQuadrant::kTopLeft:
SetImageHorizontalAlignment(views::ImageButton::ALIGN_RIGHT);
SetImageVerticalAlignment(views::ImageButton::ALIGN_BOTTOM);
icon = gfx::ImageSkiaOperations::CreateRotatedImage(
icon, SkBitmapOperations::ROTATION_90_CW);
break;
case VideoOverlayWindowViews::WindowQuadrant::kTopRight:
SetImageHorizontalAlignment(views::ImageButton::ALIGN_LEFT);
SetImageVerticalAlignment(views::ImageButton::ALIGN_BOTTOM);
icon = gfx::ImageSkiaOperations::CreateRotatedImage(
icon, SkBitmapOperations::ROTATION_180_CW);
break;
}
SetImageModel(views::Button::STATE_NORMAL,
ui::ImageModel::FromImageSkia(icon));
}
BEGIN_METADATA(ResizeHandleButton)
END_METADATA
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