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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ash/app_list/app_list_util.h"
#include "ash/app_list/model/app_list_folder_item.h"
#include "ash/app_list/model/app_list_item.h"
#include "ash/constants/ash_constants.h"
#include "ash/constants/ash_features.h"
#include "ash/style/ash_color_id.h"
#include "ash/style/ash_color_provider.h"
#include "ui/events/event.h"
#include "ui/gfx/canvas.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/geometry/skia_conversions.h"
#include "ui/gfx/geometry/vector2d.h"
#include "ui/gfx/image/image_skia.h"
#include "ui/gfx/image/image_skia_operations.h"
#include "ui/views/accessibility/view_accessibility.h"
#include "ui/views/controls/textfield/textfield.h"
#include "ui/views/focus/focus_manager.h"
#include "ui/views/view.h"
namespace ash {
namespace {
// The cardified apps grid and app icons should scale down by this factor.
constexpr float kAppsGridCardifiedScale = 0.9f;
} // namespace
bool IsUnhandledUnmodifiedEvent(const ui::KeyEvent& event) {
if (event.handled() || event.type() != ui::ET_KEY_PRESSED)
return false;
if (event.IsShiftDown() || event.IsControlDown() || event.IsAltDown())
return false;
return true;
}
bool IsUnhandledLeftRightKeyEvent(const ui::KeyEvent& event) {
if (!IsUnhandledUnmodifiedEvent(event))
return false;
return event.key_code() == ui::VKEY_LEFT ||
event.key_code() == ui::VKEY_RIGHT;
}
bool IsUnhandledUpDownKeyEvent(const ui::KeyEvent& event) {
if (!IsUnhandledUnmodifiedEvent(event))
return false;
return event.key_code() == ui::VKEY_UP || event.key_code() == ui::VKEY_DOWN;
}
bool IsUnhandledArrowKeyEvent(const ui::KeyEvent& event) {
if (!IsUnhandledUnmodifiedEvent(event))
return false;
return IsArrowKeyEvent(event);
}
bool IsArrowKeyEvent(const ui::KeyEvent& event) {
return IsArrowKey(event.key_code());
}
bool IsArrowKey(const ui::KeyboardCode& key_code) {
return key_code == ui::VKEY_DOWN || key_code == ui::VKEY_RIGHT ||
key_code == ui::VKEY_LEFT || key_code == ui::VKEY_UP;
}
bool IsFolderItem(AppListItem* item) {
return item && item->GetItemType() == AppListFolderItem::kItemType;
}
bool LeftRightKeyEventShouldExitText(views::Textfield* textfield,
const ui::KeyEvent& key_event) {
DCHECK(IsUnhandledLeftRightKeyEvent(key_event));
if (textfield->GetText().empty())
return true;
if (textfield->HasSelection())
return false;
if (textfield->GetCursorPosition() != 0 &&
textfield->GetCursorPosition() != textfield->GetText().length()) {
return false;
}
// For RTL language, the beginning position of the cursor will be at the right
// side and it grows towards left as we are typing.
const bool text_rtl =
textfield->GetTextDirection() == base::i18n::RIGHT_TO_LEFT;
const bool cursor_at_beginning = textfield->GetCursorPosition() == 0;
const bool move_cursor_reverse =
(text_rtl && key_event.key_code() == ui::VKEY_RIGHT) ||
(!text_rtl && key_event.key_code() == ui::VKEY_LEFT);
if ((cursor_at_beginning && !move_cursor_reverse) ||
(!cursor_at_beginning && move_cursor_reverse)) {
// Cursor is at either the beginning or the end of the textfield, and it
// will move inward.
return false;
}
return true;
}
bool ProcessLeftRightKeyTraversalForTextfield(views::Textfield* textfield,
const ui::KeyEvent& key_event) {
DCHECK(IsUnhandledLeftRightKeyEvent(key_event));
if (!LeftRightKeyEventShouldExitText(textfield, key_event))
return false;
const bool move_focus_reverse = base::i18n::IsRTL()
? key_event.key_code() == ui::VKEY_RIGHT
: key_event.key_code() == ui::VKEY_LEFT;
// Move focus outside the textfield.
textfield->GetFocusManager()->AdvanceFocus(move_focus_reverse);
return true;
}
gfx::ImageSkia CreateIconWithCircleBackground(
const gfx::ImageSkia& icon,
const ui::ColorProvider* color_provider) {
DCHECK_EQ(icon.width(), icon.height());
return gfx::ImageSkiaOperations::CreateImageWithCircleBackground(
icon.width() / 2, color_provider->GetColor(kColorAshShieldAndBaseOpaque),
icon);
}
void PaintFocusBar(gfx::Canvas* canvas,
const gfx::Point& content_origin,
int height,
SkColor color) {
SkPath path;
gfx::Rect focus_bar_bounds(content_origin.x() - kFocusBarThickness,
content_origin.y(), kFocusBarThickness * 2,
height);
path.addRRect(SkRRect::MakeRectXY(RectToSkRect(focus_bar_bounds),
kFocusBarThickness, kFocusBarThickness));
canvas->ClipPath(path, true);
cc::PaintFlags flags;
flags.setAntiAlias(true);
flags.setColor(color);
flags.setStyle(cc::PaintFlags::kStroke_Style);
flags.setStrokeWidth(kFocusBarThickness);
gfx::Point top_point = content_origin + gfx::Vector2d(kFocusBarThickness, 0);
gfx::Point bottom_point =
content_origin + gfx::Vector2d(kFocusBarThickness, height);
canvas->DrawLine(top_point, bottom_point, flags);
}
void SetViewIgnoredForAccessibility(views::View* view, bool ignored) {
auto& view_accessibility = view->GetViewAccessibility();
view_accessibility.OverrideIsLeaf(ignored);
view_accessibility.OverrideIsIgnored(ignored);
view->NotifyAccessibilityEvent(ax::mojom::Event::kTreeChanged, true);
}
float GetAppsGridCardifiedScale() {
return kAppsGridCardifiedScale;
}
} // namespace ash
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