forked from electron/electron
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menu_bar.cc
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/
menu_bar.cc
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// Copyright (c) 2014 GitHub, Inc.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#include "atom/browser/ui/views/menu_bar.h"
#include <memory>
#include "atom/browser/ui/views/menu_delegate.h"
#include "atom/browser/ui/views/submenu_button.h"
#include "ui/base/models/menu_model.h"
#include "ui/views/background.h"
#include "ui/views/layout/box_layout.h"
#if defined(USE_X11)
#include "chrome/browser/ui/libgtkui/gtk_util.h"
#endif
#if defined(OS_WIN)
#include "ui/gfx/color_utils.h"
#endif
namespace atom {
namespace {
// Default color of the menu bar.
const SkColor kDefaultColor = SkColorSetARGB(255, 233, 233, 233);
} // namespace
const char MenuBar::kViewClassName[] = "ElectronMenuBar";
MenuBar::MenuBar(views::View* window)
: background_color_(kDefaultColor), window_(window) {
RefreshColorCache();
UpdateViewColors();
SetLayoutManager(
std::make_unique<views::BoxLayout>(views::BoxLayout::kHorizontal));
window_->GetFocusManager()->AddFocusChangeListener(this);
}
MenuBar::~MenuBar() {
window_->GetFocusManager()->RemoveFocusChangeListener(this);
}
void MenuBar::SetMenu(AtomMenuModel* model) {
menu_model_ = model;
RebuildChildren();
}
void MenuBar::SetAcceleratorVisibility(bool visible) {
for (auto* child : GetChildrenInZOrder())
static_cast<SubmenuButton*>(child)->SetAcceleratorVisibility(visible);
}
MenuBar::View* MenuBar::FindAccelChild(base::char16 key) {
for (auto* child : GetChildrenInZOrder()) {
if (static_cast<SubmenuButton*>(child)->accelerator() == key)
return child;
}
return nullptr;
}
bool MenuBar::HasAccelerator(base::char16 key) {
return FindAccelChild(key) != nullptr;
}
void MenuBar::ActivateAccelerator(base::char16 key) {
auto* child = FindAccelChild(key);
if (child)
static_cast<SubmenuButton*>(child)->Activate(nullptr);
}
int MenuBar::GetItemCount() const {
return menu_model_ ? menu_model_->GetItemCount() : 0;
}
bool MenuBar::GetMenuButtonFromScreenPoint(const gfx::Point& screenPoint,
AtomMenuModel** menu_model,
views::MenuButton** button) {
if (!GetBoundsInScreen().Contains(screenPoint))
return false;
auto children = GetChildrenInZOrder();
for (int i = 0, n = children.size(); i < n; ++i) {
if (children[i]->GetBoundsInScreen().Contains(screenPoint) &&
(menu_model_->GetTypeAt(i) == AtomMenuModel::TYPE_SUBMENU)) {
*menu_model = menu_model_->GetSubmenuModelAt(i);
*button = static_cast<views::MenuButton*>(children[i]);
return true;
}
}
return false;
}
const char* MenuBar::GetClassName() const {
return kViewClassName;
}
void MenuBar::OnMenuButtonClicked(views::MenuButton* source,
const gfx::Point& point,
const ui::Event* event) {
// Hide the accelerator when a submenu is activated.
SetAcceleratorVisibility(false);
if (!menu_model_)
return;
if (!window_->HasFocus())
window_->RequestFocus();
int id = source->tag();
AtomMenuModel::ItemType type = menu_model_->GetTypeAt(id);
if (type != AtomMenuModel::TYPE_SUBMENU) {
menu_model_->ActivatedAt(id, 0);
return;
}
// Deleted in MenuDelegate::OnMenuClosed
MenuDelegate* menu_delegate = new MenuDelegate(this);
menu_delegate->RunMenu(menu_model_->GetSubmenuModelAt(id), source);
}
void MenuBar::RefreshColorCache(const ui::NativeTheme* theme) {
if (!theme)
theme = ui::NativeTheme::GetInstanceForNativeUi();
if (theme) {
#if defined(USE_X11)
background_color_ = libgtkui::GetBgColor("GtkMenuBar#menubar");
enabled_color_ = libgtkui::GetFgColor(
"GtkMenuBar#menubar GtkMenuItem#menuitem GtkLabel");
disabled_color_ = libgtkui::GetFgColor(
"GtkMenuBar#menubar GtkMenuItem#menuitem:disabled GtkLabel");
#else
background_color_ =
theme->GetSystemColor(ui::NativeTheme::kColorId_MenuBackgroundColor);
#endif
}
#if defined(OS_WIN)
background_color_ = color_utils::GetSysSkColor(COLOR_MENUBAR);
#endif
}
void MenuBar::OnNativeThemeChanged(const ui::NativeTheme* theme) {
RefreshColorCache(theme);
UpdateViewColors();
}
void MenuBar::OnDidChangeFocus(View* focused_before, View* focused_now) {
// if we've changed focus, update our view
const auto had_focus = has_focus_;
has_focus_ = focused_now != nullptr;
if (has_focus_ != had_focus)
UpdateViewColors();
}
void MenuBar::RebuildChildren() {
RemoveAllChildViews(true);
for (int i = 0, n = GetItemCount(); i < n; ++i) {
auto* button =
new SubmenuButton(menu_model_->GetLabelAt(i), this, background_color_);
button->set_tag(i);
AddChildView(button);
}
UpdateViewColors();
}
void MenuBar::UpdateViewColors() {
// set menubar background color
SetBackground(views::CreateSolidBackground(background_color_));
// set child colors
if (menu_model_ == nullptr)
return;
#if defined(USE_X11)
const auto& textColor = has_focus_ ? enabled_color_ : disabled_color_;
for (auto* child : GetChildrenInZOrder()) {
auto* button = static_cast<SubmenuButton*>(child);
button->SetTextColor(views::Button::STATE_NORMAL, textColor);
button->SetTextColor(views::Button::STATE_DISABLED, disabled_color_);
button->SetTextColor(views::Button::STATE_PRESSED, enabled_color_);
button->SetTextColor(views::Button::STATE_HOVERED, textColor);
button->SetUnderlineColor(textColor);
}
#elif defined(OS_WIN)
for (auto* child : GetChildrenInZOrder()) {
auto* button = static_cast<SubmenuButton*>(child);
button->SetUnderlineColor(color_utils::GetSysSkColor(COLOR_MENUTEXT));
}
#endif
}
} // namespace atom