blob: 45d4e4d823fe3cb023c05903de2d88505733923a [file] [log] [blame]
// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#import "chrome/browser/ui/cocoa/chrome_command_dispatcher_delegate.h"
#include "base/logging.h"
#include "chrome/app/chrome_command_ids.h"
#include "chrome/browser/extensions/global_shortcut_listener.h"
#include "chrome/browser/global_keyboard_shortcuts_mac.h"
#include "chrome/browser/ui/browser_command_controller.h"
#include "chrome/browser/ui/browser_commands.h"
#include "chrome/browser/ui/browser_finder.h"
#import "chrome/browser/ui/cocoa/browser_window_controller_private.h"
#import "chrome/browser/ui/cocoa/browser_window_views_mac.h"
#import "chrome/browser/ui/cocoa/tabs/tab_strip_controller.h"
#include "content/public/browser/native_web_keyboard_event.h"
@implementation ChromeCommandDispatcherDelegate
- (void)executeChromeCommandBypassingMainMenu:(int)command
browser:(Browser*)browser {
chrome::ExecuteCommand(browser, command);
}
- (BOOL)eventHandledByExtensionCommand:(NSEvent*)event
priority:(ui::AcceleratorManager::HandlerPriority)
priority {
if ([event window]) {
BrowserWindowController* controller =
BrowserWindowControllerForWindow([event window]);
// |controller| is only set in Cocoa. In toolkit-views extension commands
// are handled by BrowserView.
if ([controller respondsToSelector:@selector(handledByExtensionCommand:
priority:)]) {
if ([controller handledByExtensionCommand:event priority:priority])
return YES;
}
}
return NO;
}
- (ui::PerformKeyEquivalentResult)prePerformKeyEquivalent:(NSEvent*)event
window:(NSWindow*)window {
// TODO(erikchen): Detect symbolic hot keys, and force control to be passed
// back to AppKit so that it can handle it correctly.
// https://crbug.com/846893.
NSResponder* responder = [window firstResponder];
if ([responder conformsToProtocol:@protocol(CommandDispatcherTarget)]) {
NSObject<CommandDispatcherTarget>* target =
static_cast<NSObject<CommandDispatcherTarget>*>(responder);
if ([target isKeyLocked:event])
return ui::PerformKeyEquivalentResult::kUnhandled;
}
if ([self eventHandledByExtensionCommand:event
priority:ui::AcceleratorManager::
kHighPriority]) {
return ui::PerformKeyEquivalentResult::kHandled;
}
// The specification for this private extensions API is incredibly vague. For
// now, we avoid triggering chrome commands prior to giving the firstResponder
// a chance to handle the event.
if (extensions::GlobalShortcutListener::GetInstance()
->IsShortcutHandlingSuspended()) {
return ui::PerformKeyEquivalentResult::kUnhandled;
}
// If this keyEquivalent corresponds to a Chrome command, trigger it directly
// via chrome::ExecuteCommand. We avoid going through the NSMenu for two
// reasons:
// * consistency - some commands are not present in the NSMenu. Furthermore,
// the NSMenu's contents can be dynamically updated, so there's no guarantee
// that passing the event to NSMenu will even do what we think it will do.
// * Avoiding sleeps. By default, the implementation of NSMenu
// performKeyEquivalent: has a nested run loop that spins for 100ms. If we
// avoid that by spinning our task runner in their private mode, there's a
// built in nanosleep. See https://crbug.com/836947#c8.
//
// By not passing the event to AppKit, we do lose out on the brief
// highlighting of the NSMenu.
CommandForKeyEventResult result = CommandForKeyEvent(event);
if (result.found()) {
Browser* browser = chrome::FindBrowserWithWindow(window);
if (browser &&
browser->command_controller()->IsReservedCommandOrKey(
result.chrome_command, content::NativeWebKeyboardEvent(event))) {
// If a command is reserved, then we also have it bypass the main menu.
// This is based on the rough approximation that reserved commands are
// also the ones that we want to be quickly repeatable.
// https://crbug.com/836947.
chrome::ExecuteCommand(browser, result.chrome_command);
return ui::PerformKeyEquivalentResult::kHandled;
}
}
return ui::PerformKeyEquivalentResult::kUnhandled;
}
- (ui::PerformKeyEquivalentResult)postPerformKeyEquivalent:(NSEvent*)event
window:(NSWindow*)window
isRedispatch:(BOOL)isRedispatch {
if ([self eventHandledByExtensionCommand:event
priority:ui::AcceleratorManager::
kNormalPriority]) {
return ui::PerformKeyEquivalentResult::kHandled;
}
CommandForKeyEventResult result = CommandForKeyEvent(event);
if (!result.found() && isRedispatch) {
result.chrome_command = DelayedWebContentsCommandForKeyEvent(event);
result.from_main_menu = false;
}
if (result.found()) {
Browser* browser = chrome::FindBrowserWithWindow(window);
if (browser) {
// postPerformKeyEquivalent: is only called on events that are not
// reserved. We want to bypass the main menu if and only if the event is
// reserved. As such, we let all events with main menu keyEquivalents be
// handled by the main menu.
if (result.from_main_menu) {
return ui::PerformKeyEquivalentResult::kPassToMainMenu;
}
chrome::ExecuteCommand(browser, result.chrome_command);
return ui::PerformKeyEquivalentResult::kHandled;
}
}
return ui::PerformKeyEquivalentResult::kUnhandled;
}
@end // ChromeCommandDispatchDelegate