mirror of
https://github.com/rn10950/RetroZilla.git
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282 lines
8.9 KiB
C++
282 lines
8.9 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is the Mozilla browser.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications, Inc.
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* Portions created by the Initial Developer are Copyright (C) 1999
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Conrad Carlen <ccarlen@netscape.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "EmbedEventHandling.h"
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#include "CTextInputEventHandler.h"
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#include "prthread.h"
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#if defined(__MWERKS__) && defined(DEBUG) && !TARGET_CARBON
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#include "SIOUX.h"
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#endif
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#include "nsIWidget.h"
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#include "nsIEventSink.h"
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#include "nsCOMPtr.h"
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// Static Variables
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WindowPtr CEmbedEventAttachment::mLastAlienWindowClicked;
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//*****************************************************************************
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// CEmbedEventAttachment
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//
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// Handles events for windows popped up by Gecko which are not LWindows
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//
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//*****************************************************************************
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CEmbedEventAttachment::CEmbedEventAttachment()
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{
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}
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CEmbedEventAttachment::~CEmbedEventAttachment()
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{
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}
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//
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// GetTopWidget
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//
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// We've stashed the nsIWidget for the given windowPtr in the data
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// properties of the window. Fetch it.
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//
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void
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CEmbedEventAttachment::GetTopWidget ( WindowPtr aWindow, nsIWidget** outWidget )
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{
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nsIWidget* topLevelWidget = nsnull;
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::GetWindowProperty ( aWindow, 'MOSS', 'GEKO', sizeof(nsIWidget*), nsnull, (void*)&topLevelWidget);
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if ( topLevelWidget ) {
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*outWidget = topLevelWidget;
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NS_ADDREF(*outWidget);
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}
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}
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//
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// GetWindowEventSink
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//
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// We've stashed the nsIEventSink for the given windowPtr in the data of the
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// root control. Fetch it.
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//
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void
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CEmbedEventAttachment::GetWindowEventSink ( WindowPtr aWindow, nsIEventSink** outSink )
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{
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*outSink = nsnull;
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nsCOMPtr<nsIWidget> topWidget;
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GetTopWidget ( aWindow, getter_AddRefs(topWidget) );
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nsCOMPtr<nsIEventSink> sink ( do_QueryInterface(topWidget) );
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if ( sink ) {
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*outSink = sink;
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NS_ADDREF(*outSink);
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}
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}
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void CEmbedEventAttachment::ExecuteSelf(MessageT inMessage,
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void* ioParam)
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{
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SetExecuteHost(true);
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EventRecord *inMacEvent;
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WindowPtr macWindowP;
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// 1. Handle the msg_AdjustCursor message. PowerPlant
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// sends this message to attachments which are attached
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// to views but not those attached to the application.
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// IMPORTANT: For this to be called, the application's
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// AdjustCursor() method must be overridden to send the
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// msg_AdjustCursor to its attachments.
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if (inMessage == msg_AdjustCursor) {
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inMacEvent = static_cast<EventRecord*>(ioParam);
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::MacFindWindow(inMacEvent->where, &macWindowP);
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if (IsAlienGeckoWindow(macWindowP)) {
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nsCOMPtr<nsIEventSink> sink;
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GetWindowEventSink(macWindowP, getter_AddRefs(sink));
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if ( sink ) {
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PRBool handled = PR_FALSE;
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sink->DispatchEvent(inMacEvent, &handled);
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SetExecuteHost(false);
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}
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}
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} else if (inMessage == msg_Event) {
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inMacEvent = static_cast<EventRecord*>(ioParam);
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#if defined(__MWERKS__) && defined(DEBUG) && !TARGET_CARBON
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// 2. See if the event is for the console window.
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// Limit what types of events we send to it.
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if ((inMacEvent->what == mouseDown ||
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inMacEvent->what == updateEvt ||
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inMacEvent->what == activateEvt ||
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inMacEvent->what == keyDown) &&
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SIOUXHandleOneEvent(inMacEvent))
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{
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SetExecuteHost(false);
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return;
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}
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#endif
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// 3. Finally, see if we have an event for a Gecko window
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// which is not an LWindow. These get created by widget to
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// show pop-up list boxes - grrr. The following events are
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// sufficient for those.
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switch (inMacEvent->what)
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{
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case mouseDown:
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{
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mLastAlienWindowClicked = nil;
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// If an alien window is frontmost, as they always are when present,
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// Gecko needs to get the event - no matter where the click occured.
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// This is so the pop-up window (what these alien windows are used for)
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// will be rolled up on a click in the menu bar, title bar, etc.
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WindowPtr frontWindow = ::FrontWindow();
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if (IsAlienGeckoWindow(frontWindow)) {
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nsCOMPtr<nsIEventSink> sink;
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GetWindowEventSink(frontWindow, getter_AddRefs(sink));
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if (sink) {
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PRBool handled = PR_FALSE;
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sink->DispatchEvent(inMacEvent, &handled);
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SInt16 thePart = ::MacFindWindow(inMacEvent->where, &macWindowP);
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if ((thePart == inContent) && (frontWindow == macWindowP)) {
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// It the click was actually in an alien window - done processing
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// Otherwise, let PowerPlant continue processing the click.
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mLastAlienWindowClicked = macWindowP;
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SetExecuteHost(false);
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}
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}
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}
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}
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break;
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case mouseUp:
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{
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if (mLastAlienWindowClicked) {
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nsCOMPtr<nsIEventSink> sink;
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GetWindowEventSink(mLastAlienWindowClicked, getter_AddRefs(sink));
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if ( sink ) {
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PRBool handled = PR_FALSE;
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sink->DispatchEvent(inMacEvent, &handled);
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mLastAlienWindowClicked = nil;
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SetExecuteHost(false);
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}
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}
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}
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break;
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case updateEvt:
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case activateEvt:
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{
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macWindowP = (WindowPtr)inMacEvent->message;
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if (IsAlienGeckoWindow(macWindowP)) {
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nsCOMPtr<nsIEventSink> sink;
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GetWindowEventSink(macWindowP, getter_AddRefs(sink));
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if ( sink ) {
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PRBool handled = PR_FALSE;
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sink->DispatchEvent(inMacEvent, &handled);
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SetExecuteHost(false);
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}
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}
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}
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break;
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}
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}
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}
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Boolean CEmbedEventAttachment::IsAlienGeckoWindow(WindowPtr inMacWindow)
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{
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PRBool isAlien = PR_FALSE;
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// it's an 'alien' window if there's no LWindow object and there is
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// an nsIEventSink stashed in the window's root control.
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if (inMacWindow && !LWindow::FetchWindowObject(inMacWindow)) {
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nsCOMPtr<nsIEventSink> sink;
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GetWindowEventSink ( inMacWindow, getter_AddRefs(sink) );
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if ( sink )
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isAlien = PR_TRUE;
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}
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return isAlien;
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}
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//*****************************************************************************
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// CEmbedIdler
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//
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//
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//*****************************************************************************
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CEmbedIdler::CEmbedIdler()
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{
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}
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CEmbedIdler::~CEmbedIdler()
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{
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}
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void CEmbedIdler::SpendTime(const EventRecord& inMacEvent)
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{
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::PR_Sleep(PR_INTERVAL_NO_WAIT);
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}
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//*****************************************************************************
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// Initialization Function - Call at application startup.
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//*****************************************************************************
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void InitializeEmbedEventHandling(LApplication* theApplication)
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{
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CEmbedEventAttachment *windowAttachment = new CEmbedEventAttachment;
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ThrowIfNil_(windowAttachment);
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theApplication->AddAttachment(windowAttachment);
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CEmbedIdler *embedIdler = new CEmbedIdler;
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ThrowIfNil_(embedIdler);
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embedIdler->StartIdling();
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#if TARGET_CARBON
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InitializeTextInputEventHandling();
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#endif
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}
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