summaryrefslogtreecommitdiffstats
blob: 9d5c3a00ea2da058c51f76a894c1b7cd45e81120 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
	<meta http-equiv="content-type" content="text/html; charset=utf-8" />
	<base href="%@">
	
	<script type="text/javascript">
	//<![CDATA[
	
	   isDebug = false;        
        
        // Fade interval in milliseconds
        // Make this larger if you experience performance issues
        Fadomatic.INTERVAL_MILLIS = 50;
        
        // Creates a fader
        // element - The element to fade
        // speed - The speed to fade at, from 0.0 to 100.0
        // initialOpacity (optional, default 100) - element's starting opacity, 0 to 100
        // minOpacity (optional, default 0) - element's minimum opacity, 0 to 100
        // maxOpacity (optional, default 0) - element's minimum opacity, 0 to 100
        function Fadomatic (element, rate, initialOpacity, minOpacity, maxOpacity) {
          this._element = element;
          this._intervalId = null;
          this._rate = rate;
          this._isFadeOut = true;
        
          // Set initial opacity and bounds
          // NB use 99 instead of 100 to avoid flicker at start of fade
          this._minOpacity = 0;
          this._maxOpacity = 99;
          this._opacity = 99;
        
          if (typeof minOpacity != 'undefined') {
            if (minOpacity < 0) {
              this._minOpacity = 0;
            } else if (minOpacity > 99) {
              this._minOpacity = 99;
            } else {
              this._minOpacity = minOpacity;
            }
          }
        
          if (typeof maxOpacity != 'undefined') {
            if (maxOpacity < 0) {
              this._maxOpacity = 0;
            } else if (maxOpacity > 99) {
              this._maxOpacity = 99;
            } else {
              this._maxOpacity = maxOpacity;
            }
        
            if (this._maxOpacity < this._minOpacity) {
              this._maxOpacity = this._minOpacity;
            }
          }
          
          if (typeof initialOpacity != 'undefined') {
            if (initialOpacity > this._maxOpacity) {
              this._opacity = this._maxOpacity;
            } else if (initialOpacity < this._minOpacity) {
              this._opacity = this._minOpacity;
            } else {
              this._opacity = initialOpacity;
            }
          }
        
          // See if we're using W3C opacity, MSIE filter, or just
          // toggling visiblity
          if(typeof element.style.opacity != 'undefined') {
        
            this._updateOpacity = this._updateOpacityW3c;
        
          } else if(typeof element.style.filter != 'undefined') {
        
            // If there's not an alpha filter on the element already,
            // add one
            if (element.style.filter.indexOf("alpha") == -1) {
        
              // Attempt to preserve existing filters
              var existingFilters="";
              if (element.style.filter) {
                existingFilters = element.style.filter+" ";
              }
              element.style.filter = existingFilters+"alpha(opacity="+this._opacity+")";
            }
        
            this._updateOpacity = this._updateOpacityMSIE;
            
          } else {
        
            this._updateOpacity = this._updateVisibility;
          }
        
          this._updateOpacity();
        }
        
        // Initiates a fade out
        Fadomatic.prototype.fadeOut = function () {
          this._isFadeOut = true;
          this._beginFade();
        }
        
        // Initiates a fade in
        Fadomatic.prototype.fadeIn = function () {
          this._isFadeOut = false;
          this._beginFade();
        }
        
        // Makes the element completely opaque, stops any fade in progress
        Fadomatic.prototype.show = function () {
          this.haltFade();
          this._opacity = this._maxOpacity;
          this._updateOpacity();
        }
        
        // Makes the element completely transparent, stops any fade in progress
        Fadomatic.prototype.hide = function () {
          this.haltFade();
          this._opacity = 0;
          this._updateOpacity();
        }
        
        // Halts any fade in progress
        Fadomatic.prototype.haltFade = function () {
        
          clearInterval(this._intervalId);
        }
        
        // Resumes a fade where it was halted
        Fadomatic.prototype.resumeFade = function () {
        
          this._beginFade();
        }
        
        // Pseudo-private members
        
        Fadomatic.prototype._beginFade = function () {
        
          this.haltFade();
          var objref = this;
          this._intervalId = setInterval(function() { objref._tickFade(); },Fadomatic.INTERVAL_MILLIS);
        }
        
        Fadomatic.prototype._tickFade = function () {
        
          if (this._isFadeOut) {
            this._opacity -= this._rate;
            if (this._opacity < this._minOpacity) {
              this._opacity = this._minOpacity;
              this.haltFade();
            }
          } else {
            this._opacity += this._rate;
            if (this._opacity > this._maxOpacity ) {
              this._opacity = this._maxOpacity;
              this.haltFade();
            }
          }
        
          this._updateOpacity();
        }
        
        Fadomatic.prototype._updateVisibility = function () {
          
          if (this._opacity > 0) {
            this._element.style.visibility = 'visible';
          } else {
            this._element.style.visibility = 'hidden';
          }
        }
        
        Fadomatic.prototype._updateOpacityW3c = function () {
          
          this._element.style.opacity = this._opacity/100;
          this._updateVisibility();
        }
        
        Fadomatic.prototype._updateOpacityMSIE = function () {
          
          this._element.filters.alpha.opacity = this._opacity;
          this._updateVisibility();
        }
        
        Fadomatic.prototype._updateOpacity = null;
        
        
        
	   //Do this on load
		function initEvents() {
			if(document.getElementById("heading") == null){
				document.getElementById("bodyNode").style.marginTop = "5px";
			}
			
            if(isDebug == false) {
	           document.getElementById("debug").style.display = "none";
	       }
	       
	       	       
			alignChat(true);
		}

	   //Debugging function
	   function trace(msg) {
			var node = document.createElement("div");
			var debugCon = document.getElementById("debug");
			node.innerHTML = msg;
			debugCon.appendChild(node);
		}
		
	
		//Appending new content to the message view
		function appendMessage(html) {
			var shouldScroll = nearBottom();
			
			//Remove any existing insertion point
			var insert = document.getElementById("insert");
			
			if(insert) insert.parentNode.removeChild(insert);
			
			//Append the new message to the bottom of our chat block
			var chat = document.getElementById("Chat");
			var range = document.createRange();
			range.selectNode(chat);
			var documentFragment = range.createContextualFragment(html);
      var myFrag = chat.appendChild(documentFragment);
      
      // Don't do the fadomatic, it's too slow
      /*
      var frag1 = document.getElementById("insert");
      if (frag1) {
        var frag= frag1.parentNode.parentNode.parentNode.parentNode.parentNode.parentNode.parentNode.parentNode;
      
        try {
            var fader = new Fadomatic(frag, 9, 0, 0, 95);
        } catch(e) {
            trace(e);
        }
        fader.fadeIn();
      }
      */
            
			alignChat(shouldScroll);
		}
		
		
		function appendNextMessage(html){
			var shouldScroll = nearBottom();
			
			//Locate the insertion point
			var insert = document.getElementById("insert");
		
			//make new node
			range = document.createRange();
			range.selectNode(insert.parentNode);
			newNode = range.createContextualFragment(html);
			
			//swap
			var pointer = insert.parentNode;
			insert.parentNode.replaceChild(newNode,insert);
			var els = pointer.getElementsByTagName("div");

			alignChat(shouldScroll);
		}
		
		
		//Auto-scroll to bottom.  Use nearBottom to determine if a scrollToBottom is desired.
		function nearBottom() {
			return ( document.body.scrollTop >= ( document.body.offsetHeight - ( window.innerHeight * 1.2 ) ) );
		}
		
		var intervall_scroll;
		function scrollToBottom() {
			//document.body.scrollTop = (document.body.scrollHeight-window.innerHeight);
			//return;
			if( intervall_scroll ) clearInterval( intervall_scroll );
			intervall_scroll = setInterval( function() {
				var target_scroll = (document.body.scrollHeight-window.innerHeight) - 1;
				var scrolldiff = target_scroll - document.body.scrollTop;
				if ( document.body.scrollTop != target_scroll ) {
					var saved_scroll = document.body.scrollTop;
					document.body.scrollTop += scrolldiff / 5 + ( scrolldiff >= 0 ? (scrolldiff != 0 ) : -1 );
				 } else {
				 	saved_scroll = -1;
					clearInterval( intervall_scroll );
				 }
			} , 10 );
			return;
		}
		
		
		//Dynamically exchange the active stylesheet
		function setStylesheet( id, url ) {
			var code = "<style id=\"" + id + "\" type=\"text/css\" media=\"screen,print\">";
			if( url.length ) code += "@import url( \"" + url + "\" );";
			code += "</style>";
			var range = document.createRange();
			var head = document.getElementsByTagName( "head" ).item(0);
			range.selectNode( head );
			documentFragment = range.createContextualFragment( code );
			head.removeChild( document.getElementById( id ) );
			head.appendChild( documentFragment );
		}
		
		//Align our chat to the bottom of the window.  If true is passed, view will also be scrolled down
		function alignChat(shouldScroll) {

			var windowHeight = window.innerHeight;
			
			if(windowHeight > 0) {
				var contentElement = document.getElementById('Chat');
				var contentHeight = contentElement.offsetHeight;
				if (windowHeight - contentHeight > 0) {
					contentElement.style.position = 'relative';
					contentElement.style.top = '0px';
				} else {
					contentElement.style.position = 'static';
				}
			}
			
			if(shouldScroll) scrollToBottom();
		}
		
		function windowDidResize() {
			alignChat(true/*nearBottom()*/); //nearBottom buggy with inavtive tabs
		}
		
		window.onresize = windowDidResize;
		//]]>
	</script>

	<style id="mainStyle" type="text/css" media="screen,print">	@import url( "%@" ); </style>

</head>
<body style="==bodyBackground==" id="bodyNode" onload="initEvents()">
%@
<div id="Chat">
</div>
%@
<div id="debug"></div>
</body>
</html>