david
960b25140d
git-svn-id: https://192.168.0.254/svn/Componentes.Terceros.DevExpressVCL@55 05c56307-c608-d34a-929d-697000501d7a
335 lines
9.3 KiB
JavaScript
335 lines
9.3 KiB
JavaScript
/*
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ExpressWeb Framework by Developer Express
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ExpressWebMenus
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Copyright (c) 2000-2004 Developer Express Inc.
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ALL RIGHTS RESERVED
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The entire contents of this file is protected by U.S. and
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International Copyright Laws. Unauthorized reproduction,
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reverse-engineering, and distribution of all or any portion of
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the code contained in this file is strictly prohibited and may
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result in severe civil and criminal penalties and will be
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prosecuted to the maximum extent possible under the law.
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*/
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/* class Menu */
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function dx_Menu(owner)
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{
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this.items = [];
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this.owner = owner;
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this.id = "empty";
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this.offset = new dx_Point(0,0);
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this.altOffset = new dx_Point(0,0);
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this.width = 0;
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this.isParent = false;
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this.GetElementById = function(id) {
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return dxMenu.Obj.GetElementById(id);
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}
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this.GetMenuElement = function() {
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if(this.isParent && Exists(this.menuElement) == false) {
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this.menuElement = this.GetElementById(this.id + "_Menu");
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}
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return this.menuElement;
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}
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this.GetAnchorElement = function() {
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if(Exists(this.anchorElement) == false) {
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this.anchorElement = this.GetElementById(this.id + "_Anchor");
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}
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return this.anchorElement;
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}
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this.GetAnchorPos = function() {
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var el = this.GetAnchorElement();
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return ( Exists(el) ) ? dxMenu.Pos.GetAbsolutePos(el) : null;
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}
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this.HideChildren = function(skipItem) {
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for(var i = 0; i < this.items.length; i++) {
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var item = this.items[i];
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if(item != skipItem) {
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item.HideChildren(skipItem);
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item.Show(false);
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item.Highlight(false);
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}
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}
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}
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this.Show = function(visible) {
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if( !this.isParent ) return;
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if(visible) {
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var pt = this.GetMenuPos();
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this.PopupMenu(pt.x, pt.y, false);
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} else {
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this.HideMenu();
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}
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}
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this.PopupMenu = function(x, y, isContextMenu) {
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this.SetMenuPos(x, y, isContextMenu);
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this.ShowMenu();
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}
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this.SetMenuPos = function(x, y, isContextMenu) {
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var el = this.GetMenuElement();
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if( Exists(el) ) {
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if(isContextMenu){
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var elHeight = dxMenu.Pos.GetElementHeight(el);
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var elWidth = dxMenu.Pos.GetElementWidth(el);
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var wRect = dxMenu.Pos.GetWindowRect();
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if(y + elHeight > wRect.bottom)
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y -= y + elHeight - wRect.bottom;
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if(x + elWidth > wRect.right)
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x -= x + elWidth - wRect.right;
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}
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dxMenu.Pos.SetAbsolutePos(el, x, y);
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}
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}
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this.HideMenu = function() {
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var el = this.GetMenuElement();
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if( Exists(el) ) this.SetMenuVisibility(el, false);
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}
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this.ShowMenu = function() {
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var el = this.GetMenuElement();
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if( Exists(el) ) this.SetMenuVisibility(el, true);
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}
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this.SetMenuVisibility = function(el, visible) {
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this.SetElementVisibility(el, visible);
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}
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this.SetElementVisibility = function(el, visible) {
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if ( Exists(el) ) dxMenu.Obj.SetElementVisibility(el, visible);
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}
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this.IsElemVisible = function(el) {
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return dxMenu.Obj.IsElementVisible(el);
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}
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this.GetMenuPos = function() {
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var pt = this.GetAnchorPos();
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if( Exists(pt) ) {
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var rc = dxMenu.Pos.GetWindowRect();
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var part1 = this.GetHiddenPart(rc, pt, this.offset);
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var part2 = this.GetHiddenPart(rc, pt, this.altOffset);
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if(part1 <= part2)
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pt.Offset(this.offset.x, this.offset.y);
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else
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pt.Offset(this.altOffset.x, this.altOffset.y);
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}
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return pt;
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}
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this.GetHiddenPart = function(rc, pos, offset) {
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var pt = pos.Clone();
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pt.Offset(offset.x, offset.y);
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var leftPiece = Math.max(0, rc.left - pt.x);
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var rightPiece = Math.max(0, pt.x + this.width - rc.right);
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return leftPiece + rightPiece;
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}
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this.GetItemById = function(id) {
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for(var i = 0; i < this.items.length; i++) {
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var item = this.items[i];
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if(item.id == id) return item;
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item = item.GetItemById(id);
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if( Exists(item) ) return item;
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}
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return null;
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}
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this.AddItem = function(id) {
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var item = this.CreateItem();
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if( Exists(id) ) item.id = id;
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this.items.Add(item);
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this.isParent = true;
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return item;
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}
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this.CreateItem = function() {
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return dxMenu.Inf.ns4 ? new dx_MenuItemNS4(this, this.owner) :
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new dx_MenuItem(this, this.owner);
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}
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}
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/* class MenuItem */
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function dx_MenuItem(parent, owner)
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{
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this.inherit = dx_Menu;
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this.inherit(owner);
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this.parent = parent;
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this.GetSelectedElement = function() {
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if(Exists(this.selectedElement) == false) {
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this.selectedElement = this.GetElementById(this.id + "_Selected");
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}
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return this.selectedElement;
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}
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this.Highlight = function(visible) {
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var el = this.GetSelectedElement();
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this.SetElementVisibility(el, visible);
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}
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this.IsSelected = function() {
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var el = this.GetSelectedElement();
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return this.IsElemVisible(el);
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}
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this.Select = function() {
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if(this.IsSelected() == false) {
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this.parent.HideChildren(this);
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this.Highlight(true);
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this.Show(true);
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}
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}
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this.Index = function() {
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return this.parent.items.IndexOf(this);
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}
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}
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/* class MenuItemNS4 */
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function dx_MenuItemNS4(parent, owner)
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{
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this.inherit = dx_MenuItem;
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this.inherit(parent, owner);
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this.SetMenuVisibility = function(el, visible) {
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this.SetElementVisibility(el, visible);
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if(visible) {
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for(var i = 0; i < this.items.length; i++) {
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this.items[i].SetElementPos();
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}
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}
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for(var i = 0; i < this.items.length; i++) {
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this.items[i].SetLinkVisibility(visible);
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}
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}
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this.SetLinkVisibility = function(visible) {
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var el = this.GetLinkElement();
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this.SetElementVisibility(el, visible);
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}
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this.GetLinkElement = function() {
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if(Exists(this.linkElement) == false) {
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this.linkElement = this.CreateLink();
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}
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return this.linkElement;
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}
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this.Clear = function() {
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if( Exists(this.linkElement) ) {
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delete this.linkElement;
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this.linkElement = null;
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}
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for(var i = 0; i < this.items.length; i++) {
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this.items[i].Clear();
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}
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}
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this.Initialize = function() {
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this.SetElementPos();
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for(var i = 0; i < this.items.length; i++) {
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this.items[i].Initialize();
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}
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}
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this.SetElementPos = function() {
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var pt = this.GetAnchorPos();
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if( Exists(pt) ) {
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if(this.HasHorizontalParent() && this.owner.itemHeight > 0)
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pt.y -= (this.owner.itemHeight - 1);
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var el = this.GetLinkElement();
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if(Exists(el)) dxMenu.Pos.SetAbsolutePos(el, pt.x, pt.y);
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el = this.GetSelectedElement();
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if( Exists(el) ) dxMenu.Pos.SetAbsolutePos(el, pt.x, pt.y);
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}
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}
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this.GetAnchorPos = function() {
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var el = this.GetAnchorElement();
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if( Exists(el) ) return dxMenu.Pos.GetAbsolutePos(el);
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var el = this.parent.GetMenuElement();
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if( Exists(el) ) {
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var pt = dxMenu.Pos.GetAbsolutePos(el);
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pt.x += this.parent.borderWidth;
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pt.y += this.parent.borderWidth;
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pt.y += this.Index() * this.owner.itemHeight;
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return pt;
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}
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return null;
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}
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this.HasRootParent = function() {
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return (this.owner == this.parent);
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}
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this.HasHorizontalParent = function() {
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return (this.owner == this.parent && this.owner.horizontal > 0);
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}
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this.GetItemWidth = function() {
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return Exists(this.itemWidth) ? this.itemWidth : this.parent.width;
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}
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this.CreateLink = function() {
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var lyr = dxMenu.Obj.CreateLayer(this.parent.width, window, null);
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with(lyr) {
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clip.width = this.GetItemWidth();
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clip.height = this.owner.itemHeight;
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}
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var visible = this.HasRootParent() ? true : false;
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this.SetElementVisibility(lyr, visible);
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lyr.menuItem = this;
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lyr.onmouseover = function() { this.menuItem.Select(); }
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if( Exists(this.href) ) {
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lyr.captureEvents(Event.CLICK);
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lyr.onclick = function(){ this.menuItem.OnClick() };
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}
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return lyr;
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}
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this.OnClick = function() {
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dxMenu.Utl.NavigateUrl(this.href, this.target);
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}
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}
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/* class MainMenu */
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function dx_MainMenu()
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{
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this.inherit = dx_Menu;
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this.inherit(this);
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this.horizontal = 0;
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this.itemHeight = 10;
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}
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/* class MenuManager */
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function dx_MenuManager()
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{
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this.menus = [];
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this.Initialize = function() {
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}
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this.OnResize = function() {
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this.HideAll();
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}
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this.HideAll = function() {
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for(var i = 0; i < this.menus.length; i++) {
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this.menus[i].HideChildren(null);
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}
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}
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this.CreateMenu = function() {
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var menu = new dx_MainMenu();
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this.menus.Add(menu);
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return menu;
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}
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this.GetMenuItem = function(id) {
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for(var i = 0; i < this.menus.length; i++) {
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var item = this.menus[i].GetItemById(id);
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if(Exists(item)) return item;
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}
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return null;
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}
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this.GetMainMenu = function(id) {
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for(var i = 0; i < this.menus.length; i++)
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if(id == this.menus[i].id) return this.menus[i];
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return null;
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}
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this.SelectMenuItem = function(id) {
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var item = this.GetMenuItem(id);
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if( Exists(item) ) item.Select();
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}
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this.PopupMenu = function(id, e, x, y, isContextMenu) {
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var item = this.GetMenuItem(id);
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if( Exists(item) ) {
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if(Exists(x) == false) x = dxMenu.Pos.GetEventX(e, window);
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if(Exists(y) == false) y = dxMenu.Pos.GetEventY(e, window);
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item.PopupMenu(x,y,isContextMenu);
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}
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}
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this.HideMenu = function(id) {
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var item = this.GetMenuItem(id);
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if( Exists(item) ) item.HideMenu();
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}
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this.OnMouseDown = function(e) {
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var el = dxMenu.Inf.GetSrcElement(e);
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el = dxMenu.Obj.GetParentById(el, "_MenuItem");
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if(!Exists(el)) this.HideAll();
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}
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this.OnMouseOut = function(e) {
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var el = dxMenu.Inf.GetTargetElement(e);
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if (!Exists(el)) this.HideAll();
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}
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}
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