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controller component for the browser...
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rpotts%netscape.com
parent
5c380928ee
commit
07b310f3a6
237
xpfe/browser/src/nsBrowserController.cpp
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237
xpfe/browser/src/nsBrowserController.cpp
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS IS"
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* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
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* the License for the specific language governing rights and limitations
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* under the License.
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*
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* The Original Code is Mozilla Communicator client code.
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*
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* The Initial Developer of the Original Code is Netscape Communications
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* Corporation. Portions created by Netscape are Copyright (C) 1998
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* Netscape Communications Corporation. All Rights Reserved.
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*/
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#include "nsBrowserController.h"
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#include "nsXPComFactory.h"
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#include "nsIDOMWindow.h"
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#include "nsIDOMHTMLDocument.h"
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#include "nsIDOMHTMLIFrameElement.h"
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#include "nsIDOMHTMLInputElement.h"
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#include "nsIWebShell.h"
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#include "nsIScriptContextOwner.h"
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#include "nsIScriptGlobalObject.h"
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static NS_DEFINE_IID(kIDOMWindowIID, NS_IDOMWINDOW_IID);
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static NS_DEFINE_IID(kIDOMHTMLDocumentIID, NS_IDOMHTMLDOCUMENT_IID);
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static NS_DEFINE_IID(kIDOMMouseListenerIID, NS_IDOMMOUSELISTENER_IID);
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static NS_DEFINE_IID(kIDOMKeyListenerIID, NS_IDOMKEYLISTENER_IID);
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static NS_DEFINE_IID(kIDOMFormListenerIID, NS_IDOMFORMLISTENER_IID);
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static NS_DEFINE_IID(kIDOMLoadListenerIID, NS_IDOMLOADLISTENER_IID);
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static NS_DEFINE_IID(kIWebShellIID, NS_IWEB_SHELL_IID);
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static NS_DEFINE_IID(kIScriptContextOwnerIID, NS_ISCRIPTCONTEXTOWNER_IID);
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static NS_DEFINE_IID(kIDOMHTMLIFrameElementIID, NS_IDOMHTMLIFRAMEELEMENT_IID);
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static NS_DEFINE_IID(kIDOMHTMLInputElementIID, NS_IDOMHTMLINPUTELEMENT_IID);
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nsBrowserController::nsBrowserController()
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{
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mLocationForm = nsnull;
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mForwardBtn = nsnull;
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mBackBtn = nsnull;
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mURLTypeIn = nsnull;
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mWebWindow = nsnull;
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mWebShell = nsnull;
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}
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nsBrowserController::~nsBrowserController()
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{
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NS_IF_RELEASE(mLocationForm);
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NS_IF_RELEASE(mForwardBtn);
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NS_IF_RELEASE(mBackBtn);
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NS_IF_RELEASE(mURLTypeIn);
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NS_IF_RELEASE(mWebWindow);
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NS_IF_RELEASE(mWebShell);
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}
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NS_IMETHODIMP
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nsBrowserController::Initialize(nsIDOMDocument* aDocument, nsISupports* aContainer)
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{
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nsresult rv = NS_OK;
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nsIDOMHTMLDocument* doc = nsnull;
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/* Argument validation... */
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if ((nsnull == aContainer) || (nsnull == aDocument)) {
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rv = NS_ERROR_NULL_POINTER;
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goto done;
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}
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// XXX: What happens if this fails?
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rv = aContainer->QueryInterface(kIWebShellIID, (void**)&mWebShell);
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/*
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* If a web shell was found, then hook up an IDOMLoadEvent listener
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*/
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// Locate the nsIWebShell that represents the browser.webwindow IFrame...
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// This webshell is not availableuntil the entire document has
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// been loaded...
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if (NS_SUCCEEDED(rv)) {
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nsAutoString name("browser.webwindow");
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rv = mWebShell->FindChildWithName(name, mWebWindow);
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/*
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* If a web shell was found, then hook up an IDOMLoadEvent listener
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*/
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if (nsnull != mWebWindow) {
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nsIScriptContextOwner* owner;
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rv = mWebWindow->QueryInterface(kIScriptContextOwnerIID, (void**)&owner);
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if (NS_SUCCEEDED(rv)) {
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nsIScriptGlobalObject* scriptGlobal = nsnull;
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rv = owner->GetScriptGlobalObject(&scriptGlobal);
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if (NS_SUCCEEDED(rv)) {
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/* Attach the DOMLoadEvent listener... */
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AddEventListener(scriptGlobal, kIDOMLoadListenerIID);
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NS_RELEASE(scriptGlobal);
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}
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NS_RELEASE(owner);
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}
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}
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}
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rv = aDocument->QueryInterface(kIDOMHTMLDocumentIID,(void **)&doc);
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if (NS_SUCCEEDED(rv)) {
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doc->GetElementById("browser.toolbar", &mLocationForm);
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doc->GetElementById("browser.toolbar.back", &mBackBtn);
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doc->GetElementById("browser.toolbar.forward",&mForwardBtn);
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doc->GetElementById("browser.toolbar.url", &mURLTypeIn);
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AddEventListener(mBackBtn, kIDOMMouseListenerIID);
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AddEventListener(mForwardBtn, kIDOMMouseListenerIID);
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AddEventListener(mURLTypeIn, kIDOMKeyListenerIID);
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NS_RELEASE(doc);
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}
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done:
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return rv;
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}
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/*
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* Event handler for mouse clicks...
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*
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* This routine handles the forward and back buttons...
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*/
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nsresult nsBrowserController::MouseClick(nsIDOMEvent* aMouseEvent)
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{
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nsIDOMNode * node = nsnull;
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aMouseEvent->GetTarget(&node);
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if ((nsnull != mWebWindow) && (nsnull != node)) {
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if (mBackBtn == node) {
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mWebWindow->Back();
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} else if (mForwardBtn == node) {
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mWebWindow->Forward();
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}
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}
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NS_IF_RELEASE(node);
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return NS_OK;
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}
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nsresult nsBrowserController::KeyUp(nsIDOMEvent* aKeyEvent)
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{
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nsresult rv;
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PRUint32 key;
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rv = aKeyEvent->GetKeyCode(&key);
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if (NS_SUCCEEDED(rv)) {
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// If ENTER was pressed in the URL type-in then change to the new URL...
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if (0x0d == key) {
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if ((nsnull != mWebWindow) && (nsnull != mURLTypeIn)) {
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nsIDOMHTMLInputElement* element;
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rv = mURLTypeIn->QueryInterface(kIDOMHTMLInputElementIID, (void**) &element);
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// Get the contents of the URL type-in...
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if (NS_SUCCEEDED(rv)) {
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nsAutoString name;
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element->GetValue(name);
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mWebWindow->LoadURL(name);
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NS_RELEASE(element);
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}
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}
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}
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}
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return NS_OK;
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}
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nsresult nsBrowserController::Load(nsIDOMEvent* aLoadEvent)
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{
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nsresult rv = NS_OK;
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/// doUpdateToolbarState();
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return rv;
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}
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nsresult nsBrowserController::Unload(nsIDOMEvent* aLoadEvent)
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{
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return NS_OK;
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}
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void nsBrowserController::doUpdateToolbarState(void)
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{
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nsresult rv;
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nsIDOMHTMLInputElement* button;
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if (nsnull != mWebWindow) {
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if (nsnull != mBackBtn) {
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rv = mBackBtn->QueryInterface(kIDOMHTMLInputElementIID, (void**)&button);
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if (NS_SUCCEEDED(rv)) {
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rv = mWebWindow->CanBack();
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button->SetDisabled((rv == NS_OK) ? PR_FALSE : PR_TRUE);
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NS_RELEASE(button);
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}
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}
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if (nsnull != mForwardBtn) {
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rv = mForwardBtn->QueryInterface(kIDOMHTMLInputElementIID, (void**)&button);
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if (NS_SUCCEEDED(rv)) {
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rv = mWebWindow->CanForward();
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button->SetDisabled((rv == NS_OK) ? PR_FALSE : PR_TRUE);
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NS_RELEASE(button);
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}
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}
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}
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}
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//----------------------------------------------------------------------
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// Entry point to create nsBrowserController factory instances...
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nsresult NS_NewBrowserControllerFactory(nsIFactory** aResult)
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{
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nsresult rv = NS_OK;
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nsIFactory* inst = new nsFactory<nsBrowserController>();
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if (nsnull == inst) {
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rv = NS_ERROR_OUT_OF_MEMORY;
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}
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else {
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NS_ADDREF(inst);
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}
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*aResult = inst;
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return rv;
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}
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60
xpfe/browser/src/nsBrowserController.h
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60
xpfe/browser/src/nsBrowserController.h
Normal file
@ -0,0 +1,60 @@
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS IS"
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* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
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* the License for the specific language governing rights and limitations
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* under the License.
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*
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* The Original Code is Mozilla Communicator client code.
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*
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* The Initial Developer of the Original Code is Netscape Communications
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* Corporation. Portions created by Netscape are Copyright (C) 1998
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* Netscape Communications Corporation. All Rights Reserved.
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*/
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#ifndef nsBrowserController_h__
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#define nsBrowserController_h__
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#include "nsWidgetListener.h"
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#include "nsIFactory.h"
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// Forward class declarations...
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class nsIWebShell;
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class nsBrowserController : public nsWidgetListener
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{
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public:
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nsBrowserController();
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// nsIWidgetController interface...
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NS_IMETHOD Initialize(nsIDOMDocument* aDocument, nsISupports* aContainer);
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// Event handlers...
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virtual nsresult KeyUp (nsIDOMEvent* aKeyEvent);
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virtual nsresult MouseClick(nsIDOMEvent* aMouseEvent);
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virtual nsresult Load (nsIDOMEvent* aLoadEvent);
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virtual nsresult Unload (nsIDOMEvent* aLoadEvent);
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protected:
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virtual ~nsBrowserController();
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void doUpdateToolbarState(void);
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nsIDOMElement* mLocationForm;
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nsIDOMElement* mForwardBtn;
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nsIDOMElement* mBackBtn;
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nsIDOMElement* mURLTypeIn;
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nsIWebShell* mWebWindow;
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nsIWebShell* mWebShell;
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};
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/* Function which creates an instance of the BrowserController factory... */
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nsresult NS_NewBrowserControllerFactory(nsIFactory** aResult);
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#endif /* nsBrowserController_h__ */
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