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316 lines
10 KiB
C++
316 lines
10 KiB
C++
/* -*- Mode: C++; tab-width: 4; 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 "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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//
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// CPersonalToolbarManager.cp
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//
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// Implementation of the CPersonalToolbarManager class which handles keeping all the
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// personal toolbars in sync. This reads all its info from RDF, not the old BM UI.
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//
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// I REALLY dislike that most of this code is in Hungarian notation, but the Windows
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// code that it originally came from was like that and instead of doing a slew of
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// global replaces, I'll just complain about it.
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//
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#include "CPersonalToolbarManager.h"
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#include "CPersonalToolbarTable.h"
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#include "URDFUtilities.h"
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#include "prefapi.h"
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#pragma mark ¥¥ CPersonalToolbarManager
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#pragma mark -- Public Methods
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const char* CPersonalToolbarManager::kMaxButtonCharsPref = "browser.personal_toolbar_button.max_chars";
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const char* CPersonalToolbarManager::kMinButtonCharsPref = "browser.personal_toolbar_button.min_chars";
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//
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// Constructor
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//
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// Setup. Assumes that preferences and RDF have been initialized fully by this point.
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//
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CPersonalToolbarManager :: CPersonalToolbarManager ( )
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: mUserButtonInfoArray ( sizeof(CUserButtonInfo*) )
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{
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// setup our window into the RDF world and register this class as the one to be notified
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// when the personal toolbar changes.
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HT_Notification notifyStruct = CreateNotificationStruct();
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mToolbarView = HT_GetSelectedView ( HT_NewPersonalToolbarPane(notifyStruct) );
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Assert_(mToolbarView != NULL);
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mToolbarRoot = HT_TopNode ( mToolbarView );
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Assert_(mToolbarRoot != NULL);
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HT_SetOpenState ( mToolbarRoot, PR_TRUE ); // ensure container is open so we can see its contents
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// read in the maximum size we're allowing for personal toolbar items. If not
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// found in prefs, use our own
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int32 maxToolbarButtonChars, minToolbarButtonChars;
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if ( PREF_GetIntPref(kMaxButtonCharsPref, &maxToolbarButtonChars ) == PREF_ERROR )
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mMaxToolbarButtonChars = CPersonalToolbarManager::kMaxPersonalToolbarChars;
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else
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mMaxToolbarButtonChars = maxToolbarButtonChars;
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if ( PREF_GetIntPref(kMinButtonCharsPref, &minToolbarButtonChars ) == PREF_ERROR )
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mMinToolbarButtonChars = CPersonalToolbarManager::kMinPersonalToolbarChars;
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else
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mMinToolbarButtonChars = minToolbarButtonChars;
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InitializeButtonInfo();
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} // constructor
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//
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// Destructor
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//
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// The toolbars in individual windows will delete themselves when the window dies and
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// unregister themselves as listeners. We don't need to do anything along those
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// lines here.
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//
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CPersonalToolbarManager :: ~CPersonalToolbarManager ( )
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{
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//¥¥¥ delete the contents of the button list
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} // destructor
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//
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// RegisterNewToolbar
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//
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// This must be called for each new toolbar created in a browser window. It fills in
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// the toolbar with the correct items and registers it as a listener to the messages
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// we emit.
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//
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void
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CPersonalToolbarManager :: RegisterNewToolbar ( CPersonalToolbarTable* inBar )
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{
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AddListener ( inBar );
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BroadcastMessage ( k_PTToolbarChanged );
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} // RegisterNewToolbar
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//
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// ToolbarChanged
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//
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// The user has just made some change to the toolbar, such as manipulating items in the nav center
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// or changing the personal toolbar folder. Since these changes could be quite extensive, we
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// just clear out the whole thing and start afresh. Tell all the toolbars that they have to
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// clear themselves and grab the new information. Changes to the toolbar directly, such as by
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// drag and drop, are handled elsewhere.
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//
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void
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CPersonalToolbarManager :: ToolbarChanged ( )
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{
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RemoveToolbarButtons(); // out with the old...
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InitializeButtonInfo(); // ...in with the new
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BroadcastMessage ( k_PTToolbarChanged );
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} // ToolbarHeaderChanged
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//
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// AddButton
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//
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// Given a pre-created HT item, add it to the personal toolbar folder before the
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// given id and tell all the toolbars to update. This is called when the user
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// drops an item from another RDF source on a personal toolbar
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//
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void
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CPersonalToolbarManager :: AddButton ( HT_Resource inBookmark, Uint32 inIndex )
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{
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// Add this to RDF.
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if ( GetButtons().GetCount() ) {
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// If we get back a null resource then we must be trying to drop after
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// the last element, or there just plain aren't any in the toolbar. Re-fetch the last element
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// (using the correct index) and add the new bookmark AFTER instead of before or just add
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// it to the parent for the case of an empty toolbar
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PRBool before = PR_TRUE;
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HT_Resource dropOn = HT_GetNthItem( mToolbarView, URDFUtilities::PPRowToHTRow(inIndex) );
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if ( ! dropOn ) {
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dropOn = HT_GetNthItem( mToolbarView, URDFUtilities::PPRowToHTRow(inIndex) - 1 );
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before = PR_FALSE;
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}
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HT_DropHTRAtPos ( dropOn, inBookmark, before );
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} // if items in toolbar
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else
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HT_DropHTROn ( mToolbarRoot, inBookmark );
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// no need to tell toolbars to refresh because we will get an HT node added event and
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// refresh at that time.
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} // Addbutton
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//
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// AddButton
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//
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// Given just a URL, add it to the personal toolbar folder before the
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// given id and tell all the toolbars to update. This is called when the user
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// drops an item from another RDF source on a personal toolbar
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//
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void
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CPersonalToolbarManager :: AddButton ( const string & inURL, const string & inTitle, Uint32 inIndex )
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{
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// Add this to RDF.
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if ( GetButtons().GetCount() ) {
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// If we get back a null resource then we must be trying to drop after
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// the last element, or there just plain aren't any in the toolbar. Re-fetch the last element
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// (using the correct index) and add the new bookmark AFTER instead of before or just add
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// it to the parent for the case of an empty toolbar
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PRBool before = PR_TRUE;
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HT_Resource dropOn = HT_GetNthItem( mToolbarView, URDFUtilities::PPRowToHTRow(inIndex) );
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if ( ! dropOn ) {
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dropOn = HT_GetNthItem( mToolbarView, URDFUtilities::PPRowToHTRow(inIndex) - 1 );
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before = PR_FALSE;
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}
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HT_DropURLAndTitleAtPos ( dropOn, const_cast<char*>(inURL.c_str()),
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const_cast<char*>(inTitle.c_str()), before );
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} // if items in toolbar
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else
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HT_DropURLAndTitleOn ( mToolbarRoot, const_cast<char*>(inURL.c_str()),
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const_cast<char*>(inTitle.c_str()) );
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// no need to tell toolbars to refresh because we will get an HT node added event and
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// refresh at that time.
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} // Addbutton
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//
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// RemoveButton
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//
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// The user has explicitly removed a button from the toolbar in one of the windows (probably
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// by dragging it to the trash). Tell all the other toolbars about it, remove it from our
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// own bookkeeping list, then let RDF get rid of it.
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//
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void
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CPersonalToolbarManager :: RemoveButton ( Uint32 inIndex )
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{
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CUserButtonInfo* deadBookmark;
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GetButtons().FetchItemAt ( inIndex, &deadBookmark );
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// remove it from RDF
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HT_Resource deadNode = HT_GetNthItem ( GetHTView(), URDFUtilities::PPRowToHTRow(inIndex) );
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HT_RemoveChild ( mToolbarRoot, deadNode );
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delete deadBookmark;
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// no need to tell toolbars to refresh because we will get an HT view update event and
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// refresh at that time.
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} // RemoveButton
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//
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// RemoveToolbarButtons
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//
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// Clears out our own internal list of toolbar button information.
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//
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void
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CPersonalToolbarManager :: RemoveToolbarButtons (void)
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{
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mUserButtonInfoArray.RemoveItemsAt(mUserButtonInfoArray.GetCount(), LArray::index_First);
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} // RemoveToolbarButtons
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#pragma mark -- Protected Utility Methods
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///////////////////////////////////////////////////////////////////////////////////
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// CPersonalToolbarManager Helpers
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///////////////////////////////////////////////////////////////////////////////////
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//
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// InitializeButtonInfo
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//
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// Create our list of information for each bookmark that belongs in the toolbar. This
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// involves iterating over the RDF data in the folder pre-selected to be the personal
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// toolbar folder, compiling some info about it, and adding to an internal list which
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// will be used by each toolbar to build their tables.
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//
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// ¥¥¥NOTE: this will put folders in the bar if they exist. Strange things may happen if the
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// user clicks on them....
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//
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void
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CPersonalToolbarManager :: InitializeButtonInfo(void)
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{
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HT_Cursor cursor = HT_NewCursor( mToolbarRoot );
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if ( cursor ) {
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HT_Resource currNode = HT_GetNextItem(cursor);
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while ( currNode ) {
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CUserButtonInfo *info = new CUserButtonInfo ( HT_GetNodeName(currNode), HT_GetNodeURL(currNode),
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0, 0, HT_IsContainer(currNode));
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mUserButtonInfoArray.InsertItemsAt(1, LArray::index_Last, &info);
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currNode = HT_GetNextItem(cursor);
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} // for each top-level node
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}
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} // InitializeButtonInfo
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//
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// HandleNotification
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//
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// Called when the user makes a change to the personal toolbar folder from some other
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// place (like the bookmarks view). Reset our internal list and tell our listeners
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// that things are now different.
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//
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void
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CPersonalToolbarManager :: HandleNotification(
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HT_Notification /*notifyStruct*/,
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HT_Resource node,
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HT_Event event)
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{
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switch (event)
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{
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case HT_EVENT_NODE_ADDED:
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case HT_EVENT_VIEW_REFRESH:
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case HT_EVENT_NODE_VPROP_CHANGED:
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{
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// only update toolbar if the quickfile view changes
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if ( HT_GetView(node) == mToolbarView )
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ToolbarChanged();
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break;
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}
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}
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}
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#pragma mark ¥¥ class CUserButtonInfo
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///////////////////////////////////////////////////////////////////////////////////
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// Class CUserButtonInfo
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///////////////////////////////////////////////////////////////////////////////////
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CUserButtonInfo::CUserButtonInfo( const string & pName, const string & pURL, Uint32 nBitmapID,
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Uint32 nBitmapIndex, bool bIsFolder)
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: mName(pName), mURL(pURL), mBitmapID(nBitmapID), mBitmapIndex(nBitmapIndex),
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mIsResourceID(true), mIsFolder(bIsFolder)
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{
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}
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CUserButtonInfo::~CUserButtonInfo()
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{
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// string destructor takes care of everything...
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}
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