mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-24 21:31:04 +00:00
61ce5526c6
MozReview-Commit-ID: 2rIXTlwA6my --HG-- extra : rebase_source : a51be3edd717092738c2b5e8ccc4f60540712bfd
96 lines
4.1 KiB
C++
96 lines
4.1 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#ifndef mozilla_textinputdispatcherlistener_h_
|
|
#define mozilla_textinputdispatcherlistener_h_
|
|
|
|
#include "nsWeakReference.h"
|
|
|
|
namespace mozilla {
|
|
namespace widget {
|
|
|
|
class TextEventDispatcher;
|
|
struct IMENotification;
|
|
struct IMENotificationRequests;
|
|
|
|
#define NS_TEXT_INPUT_PROXY_LISTENER_IID \
|
|
{ 0xf2226f55, 0x6ddb, 0x40d5, \
|
|
{ 0x8a, 0x24, 0xce, 0x4d, 0x5b, 0x38, 0x15, 0xf0 } };
|
|
|
|
class TextEventDispatcherListener : public nsSupportsWeakReference
|
|
{
|
|
public:
|
|
NS_DECLARE_STATIC_IID_ACCESSOR(NS_TEXT_INPUT_PROXY_LISTENER_IID)
|
|
|
|
/**
|
|
* NotifyIME() is called by TextEventDispatcher::NotifyIME(). This is a
|
|
* notification or request to IME. See document of nsIWidget::NotifyIME()
|
|
* for the detail.
|
|
*/
|
|
NS_IMETHOD NotifyIME(TextEventDispatcher* aTextEventDispatcher,
|
|
const IMENotification& aNotification) = 0;
|
|
|
|
/**
|
|
* Returns preference for which IME notification are received by NotifyIME().
|
|
*/
|
|
NS_IMETHOD_(IMENotificationRequests) GetIMENotificationRequests() = 0;
|
|
|
|
/**
|
|
* OnRemovedFrom() is called when the TextEventDispatcher stops working and
|
|
* is releasing the listener.
|
|
*/
|
|
NS_IMETHOD_(void) OnRemovedFrom(
|
|
TextEventDispatcher* aTextEventDispatcher) = 0;
|
|
|
|
/**
|
|
* WillDispatchKeyboardEvent() may be called immediately before
|
|
* TextEventDispatcher dispatching a keyboard event. This is called only
|
|
* during calling TextEventDispatcher::DispatchKeyboardEvent() or
|
|
* TextEventDispatcher::MaybeDispatchKeypressEvents(). But this may not
|
|
* be called if TextEventDispatcher thinks that the keyboard event doesn't
|
|
* need alternative char codes.
|
|
*
|
|
* This method can overwrite any members of aKeyboardEvent which is already
|
|
* initialized by TextEventDispatcher. If it's necessary, this method should
|
|
* overwrite the charCode when Control key is pressed. TextEventDispatcher
|
|
* computes charCode from mKeyValue. However, when Control key is pressed,
|
|
* charCode should be an ASCII char. In such case, this method needs to
|
|
* overwrite it properly.
|
|
*
|
|
* @param aTextEventDispatcher Pointer to the caller.
|
|
* @param aKeyboardEvent The event trying to dispatch.
|
|
* This is already initialized, but if it's
|
|
* necessary, this method should overwrite the
|
|
* members and set alternative char codes.
|
|
* @param aIndexOfKeypress When aKeyboardEvent is eKeyPress event,
|
|
* it may be a sequence of keypress events
|
|
* if the key causes multiple characters.
|
|
* In such case, this indicates the index from
|
|
* first keypress event.
|
|
* If aKeyboardEvent is the first eKeyPress or
|
|
* other events, this value is 0.
|
|
* @param aData The pointer which was specified at calling
|
|
* the method of TextEventDispatcher.
|
|
* For example, if you do:
|
|
* |TextEventDispatcher->DispatchKeyboardEvent(
|
|
* eKeyDown, event, status, this);|
|
|
* Then, aData of this method becomes |this|.
|
|
* Finally, you can use it like:
|
|
* |static_cast<NativeEventHandler*>(aData)|
|
|
*/
|
|
NS_IMETHOD_(void) WillDispatchKeyboardEvent(
|
|
TextEventDispatcher* aTextEventDispatcher,
|
|
WidgetKeyboardEvent& aKeyboardEvent,
|
|
uint32_t aIndexOfKeypress,
|
|
void* aData) = 0;
|
|
};
|
|
|
|
NS_DEFINE_STATIC_IID_ACCESSOR(TextEventDispatcherListener,
|
|
NS_TEXT_INPUT_PROXY_LISTENER_IID)
|
|
|
|
} // namespace widget
|
|
} // namespace mozilla
|
|
|
|
#endif // #ifndef mozilla_textinputdispatcherlistener_h_
|