Annotation of kupuMPIWG/common/kupucontextmenu.js, revision 1.1.1.1
1.1 dwinter 1: /*****************************************************************************
2: *
3: * Copyright (c) 2003-2005 Kupu Contributors. All rights reserved.
4: *
5: * This software is distributed under the terms of the Kupu
6: * License. See LICENSE.txt for license text. For a list of Kupu
7: * Contributors see CREDITS.txt.
8: *
9: *****************************************************************************/
10:
11: // $Id: kupucontextmenu.js 9879 2005-03-18 12:04:00Z yuppie $
12:
13:
14: //----------------------------------------------------------------------------
15: // ContextMenu
16: //----------------------------------------------------------------------------
17:
18: function ContextMenu() {
19: /* the contextmenu */
20: this.contextmenu = null;
21: this.seperator = 1;
22:
23: this.initialize = function(editor) {
24: /* set the event handlers and such */
25: this.editor = editor;
26: // needs some work since it won't work for more than one editor
27: addEventHandler(this.editor.getInnerDocument(), "contextmenu", this.createContextMenu, this);
28: //addEventHandler(editor.getInnerDocument(), "focus", this.hideContextMenu, this);
29: addEventHandler(document, "focus", this.hideContextMenu, this);
30: addEventHandler(editor.getInnerDocument(), "mousedown", this.hideContextMenu, this);
31: addEventHandler(document, "mousedown", this.hideContextMenu, this);
32: };
33:
34: this.createContextMenu = function(event) {
35: /* Create and show the context menu
36:
37: The method will ask all tools for any (optional) elements they
38: want to add the menu and when done render it
39: */
40: if (event.stopPropagation) {
41: event.stopPropagation();
42: };
43: event.returnValue = false;
44: if (this.editor.getBrowserName() == 'IE') {
45: this.editor._saveSelection();
46: };
47: // somehow Mozilla on Windows seems to generate the oncontextmenu event
48: // several times on each rightclick, here's a workaround
49: if (this.editor.getBrowserName() == 'Mozilla' && this.contextmenu) {
50: return false;
51: };
52: this.hideContextMenu();
53: var selNode = this.editor.getSelectedNode();
54: var elements = new Array();
55: for (var id in this.editor.tools) {
56: var tool = this.editor.tools[id];
57: // alas, some people seem to want backward compatibility ;)
58: if (tool.createContextMenuElements) {
59: var els = tool.createContextMenuElements(selNode, event);
60: elements = elements.concat(els);
61: };
62: };
63: // remove the last seperator
64: this._createNewContextMenu(elements, event);
65: this.last_event = event;
66: return false;
67: };
68:
69: this.hideContextMenu = function(event) {
70: /* remove the context menu from view */
71: if (this.contextmenu) {
72: try {
73: window.document.getElementsByTagName('body')[0].removeChild(this.contextmenu);
74: } catch (e) {
75: // after some commands, the contextmenu will be removed by
76: // the browser, ignore those cases
77: };
78: this.contextmenu = null;
79: };
80: };
81:
82: this._createNewContextMenu = function(elements, event) {
83: /* add the elements to the contextmenu and show it */
84: var doc = window.document;
85: var menu = doc.createElement('div');
86: menu.contentEditable = false;
87: menu.designMode = 'Off';
88: this._setMenuStyle(menu);
89: for (var i=0; i < elements.length; i++) {
90: var element = elements[i];
91: if (element !== this.seperator) {
92: var div = doc.createElement('div');
93: div.style.width = '100%';
94: var label = doc.createTextNode('\u00a0' + element.label);
95: div.appendChild(label);
96: menu.appendChild(div);
97: // set a reference to the div on the element
98: element.element = div;
99: addEventHandler(div, "mousedown", element.action, element.context);
100: addEventHandler(div, "mouseover", element.changeOverStyle, element);
101: addEventHandler(div, "mouseout", element.changeNormalStyle, element);
102: addEventHandler(div, "mouseup", this.hideContextMenu, this);
103: } else {
104: var hr = doc.createElement('hr');
105: menu.appendChild(hr);
106: };
107: };
108: // now move the menu to the right position
109: var iframe = this.editor.getDocument().getEditable();
110: var left = event.clientX;
111: var top = event.clientY;
112: var currnode = iframe;
113: if (this.editor.getBrowserName() == 'IE') {
114: while (currnode) {
115: left += currnode.offsetLeft + currnode.clientLeft;
116: top += currnode.offsetTop + currnode.clientTop;
117: currnode = currnode.offsetParent;
118: };
119: } else {
120: while (currnode) {
121: left += currnode.offsetLeft;
122: top += currnode.offsetTop;
123: currnode = currnode.offsetParent;
124: };
125: };
126: menu.style.left = left + 'px';
127: menu.style.top = top + 'px';
128: menu.style.visibility = 'visible';
129: addEventHandler(menu, 'focus', function() {this.blur}, menu)
130: doc.getElementsByTagName('body')[0].appendChild(menu);
131: this.contextmenu = menu;
132: };
133:
134: this._setMenuStyle = function(menu) {
135: /* set the styles for the menu
136:
137: to change the menu style, override this method
138: */
139: menu.style.position = 'absolute';
140: menu.style.backgroundColor = 'white';
141: menu.style.fontFamily = 'Verdana, Arial, Helvetica, sans-serif';
142: menu.style.fontSize = '12px';
143: menu.style.lineHeight = '16px';
144: menu.style.borderWidth = '1px';
145: menu.style.borderStyle = 'solid';
146: menu.style.borderColor = 'black';
147: menu.style.cursor = 'default';
148: menu.style.width = "8em";
149: };
150:
151: this._showOriginalMenu = function(event) {
152: window.document.dispatchEvent(this._last_event);
153: };
154: };
155:
156: function ContextMenuElement(label, action, context) {
157: /* context menu element struct
158:
159: should be returned (optionally in a list) by the tools'
160: createContextMenuElements methods
161: */
162: this.label = label; // the text shown in the menu
163: this.action = action; // a reference to the method that should be called
164: this.context = context; // a reference to the object on which the method
165: // is defined
166: this.element = null; // the contextmenu machinery will add a reference
167: // to the element here
168:
169: this.changeOverStyle = function(event) {
170: /* set the background of the element to 'mouseover' style
171:
172: override only for the prototype, not for individual elements
173: so every element looks the same
174: */
175: this.element.style.backgroundColor = 'blue';
176: };
177:
178: this.changeNormalStyle = function(event) {
179: /* set the background of the element back to 'normal' style
180:
181: override only for the prototype, not for individual elements
182: so every element looks the same
183: */
184: this.element.style.backgroundColor = 'white';
185: };
186: };
187:
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