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No gfx::SingletonHwnd::Observer any more.

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Using gfx::SingletonHwndObserver instead.
This commit is contained in:
Haojian Wu 2015-08-04 16:23:54 +08:00 • committed by Cheng Zhao
parent b4e836bf2e
commit 48ccb0f2ab
2 changed files with 15 additions and 9 deletions
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10
chromium_src/chrome/browser/extensions/global_shortcut_listener_win.cc
View file

@ -4,11 +4,14 @@
#include "chrome/browser/extensions/global_shortcut_listener_win.h"
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/win/win_util.h"
#include "content/public/browser/browser_thread.h"
#include "ui/base/accelerators/accelerator.h"
#include "ui/events/event_constants.h"
#include "ui/events/keycodes/keyboard_code_conversion_win.h"
#include "ui/gfx/win/singleton_hwnd.h"
using content::BrowserThread;
@ -35,14 +38,17 @@ GlobalShortcutListenerWin::~GlobalShortcutListenerWin() {
void GlobalShortcutListenerWin::StartListening() {
DCHECK(!is_listening_); // Don't start twice.
DCHECK(!hotkey_ids_.empty()); // Also don't start if no hotkey is registered.
gfx::SingletonHwnd::GetInstance()->AddObserver(this);
singleton_hwnd_observer_.reset(new gfx::SingletonHwndObserver(
base::Bind(
&GlobalShortcutListenerWin::OnWndProc, base::Unretained(this))));
is_listening_ = true;
}
void GlobalShortcutListenerWin::StopListening() {
DCHECK(is_listening_); // No point if we are not already listening.
DCHECK(hotkey_ids_.empty()); // Make sure the map is clean before ending.
gfx::SingletonHwnd::GetInstance()->RemoveObserver(this);
singleton_hwnd_observer_.reset(nullptr);
is_listening_ = false;
}

14
chromium_src/chrome/browser/extensions/global_shortcut_listener_win.h
View file

@ -7,26 +7,24 @@
#include <windows.h>
#include "base/memory/scoped_ptr.h"
#include "chrome/browser/extensions/global_shortcut_listener.h"
#include "ui/gfx/win/singleton_hwnd.h"
#include "ui/gfx/win/singleton_hwnd_observer.h"
namespace extensions {
// Windows-specific implementation of the GlobalShortcutListener class that
// listens for global shortcuts. Handles setting up a keyboard hook and
// forwarding its output to the base class for processing.
class GlobalShortcutListenerWin : public GlobalShortcutListener,
public gfx::SingletonHwnd::Observer {
class GlobalShortcutListenerWin : public GlobalShortcutListener {
public:
GlobalShortcutListenerWin();
virtual ~GlobalShortcutListenerWin();
private:
// The implementation of our Window Proc, called by SingletonHwnd.
virtual void OnWndProc(HWND hwnd,
UINT message,
WPARAM wparam,
LPARAM lparam) override;
// The implementation of our Window Proc, called by SingletonHwndObserver.
void OnWndProc(HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam);
// GlobalShortcutListener implementation.
virtual void StartListening() override;
@ -43,6 +41,8 @@ class GlobalShortcutListenerWin : public GlobalShortcutListener,
typedef std::map<ui::Accelerator, int> HotkeyIdMap;
HotkeyIdMap hotkey_ids_;
scoped_ptr<gfx::SingletonHwndObserver> singleton_hwnd_observer_;
DISALLOW_COPY_AND_ASSIGN(GlobalShortcutListenerWin);
};