views: Pressing "Alt+Key" should bring up the menu bar.

This commit is contained in:
Cheng Zhao 2014-08-18 14:52:44 +08:00
parent ba41634ad6
commit a230daa998
3 changed files with 25 additions and 9 deletions

View file

@ -572,16 +572,22 @@ void NativeWindowViews::HandleKeyboardEvent(
const content::NativeWebKeyboardEvent& event) {
keyboard_event_handler_->HandleKeyboardEvent(event, GetFocusManager());
if (menu_bar_ && menu_bar_visible_) {
if (menu_bar_) {
// Toggle accelerator when "Alt" is pressed.
if (IsAltKey(event))
if (menu_bar_visible_ && IsAltKey(event))
menu_bar_->SetAcceleratorVisibility(
event.type == blink::WebInputEvent::RawKeyDown);
// Show the submenu when "Alt+Key" is pressed.
if (event.type == blink::WebInputEvent::RawKeyDown && !IsAltKey(event) &&
IsAltModifier(event))
IsAltModifier(event)) {
if (!menu_bar_visible_ &&
(menu_bar_->GetAcceleratorIndex(event.windowsKeyCode) != -1)) {
SetMenuBarVisibility(true);
Layout();
}
menu_bar_->ActivateAccelerator(event.windowsKeyCode);
}
}
if (!menu_bar_autohide_)

View file

@ -90,14 +90,20 @@ void MenuBar::SetAcceleratorVisibility(bool visible) {
static_cast<SubmenuButton*>(child_at(i))->SetAcceleratorVisibility(visible);
}
void MenuBar::ActivateAccelerator(base::char16 key) {
int MenuBar::GetAcceleratorIndex(base::char16 key) {
for (int i = 0; i < child_count(); ++i) {
SubmenuButton* button = static_cast<SubmenuButton*>(child_at(i));
if (button->accelerator() == key) {
SetAcceleratorVisibility(false);
button->Activate();
return;
}
if (button->accelerator() == key)
return i;
}
return -1;
}
void MenuBar::ActivateAccelerator(base::char16 key) {
int i = GetAcceleratorIndex(key);
if (i != -1) {
SetAcceleratorVisibility(false);
static_cast<SubmenuButton*>(child_at(i))->Activate();
}
}

View file

@ -34,6 +34,10 @@ class MenuBar : public views::View,
// Shows underline under accelerators.
void SetAcceleratorVisibility(bool visible);
// Returns which submenu has accelerator |key|, -1 would be returned when
// there is no matching submenu.
int GetAcceleratorIndex(base::char16 key);
// Shows the submenu whose accelerator is |key|.
void ActivateAccelerator(base::char16 key);