7 if (window.XMLHttpRequest) {
10 req = new XMLHttpRequest();
14 } else if (window.ActiveXObject) {
17 req = new ActiveXObject("Msxml2.XMLHTTP");
20 req = new ActiveXObject("Microsoft.XMLHTTP");
30 if (typeof(window.innerWidth) == 'number') {
32 return [window.innerWidth, window.innerHeight];
33 } else if (document.documentElement && (document.documentElement.clientWidth || document.documentElement.clientHeight)) {
34 // IE 6+ in 'standards compliant mode'
35 return [document.documentElement.clientWidth, document.documentElement.clientHeight];
36 } else if (document.body && (document.body.clientWidth || document.body.clientHeight)) {
38 return [document.body.clientWidth, document.body.clientHeight];
44 * pr0n can resize to any size we'd like, but we're much more likely
45 * to have this set of fixed-resolution screens cached, so to increase
46 * performance, we round down to the closest fit and use that.
48 function reduce_to_fixed_width(size)
61 for (i = 0; i < fixed_sizes.length; ++i) {
62 if (size[0] >= fixed_sizes[i][0] && size[1] >= fixed_sizes[i][1])
63 return fixed_sizes[i];
68 function display_image(width, height, evt, filename, element_id)
70 var url = "http://" + global_vhost + "/" + evt + "/" + width + "x" + height + "/" + filename;
71 var img = document.getElementById(element_id);
74 img.parentNode.removeChild(img);
77 img = document.createElement("img");
85 var main = document.getElementById("iehack");
86 main.appendChild(img);
91 function prepare_preload(img, width, height, evt, filename)
93 // cancel any pending preload
94 var preload = document.getElementById("preload");
95 if (preload != null) {
96 preload.src = "data:";
97 preload.parentNode.removeChild(preload);
100 // grmf -- IE doesn't fire onload if the image was loaded from cache, so check for
101 // completeness first; should at least be _somewhat_ better
103 display_image(width, height, evt, filename, "preload");
105 img.onload = function() { display_image(width, height, evt, filename, "preload"); };
111 var size = find_width();
112 var adjusted_size = reduce_to_fixed_width(size);
114 var img = display_image(adjusted_size[0], adjusted_size[1], global_evt, global_image_list[global_image_num], "image");
116 prepare_preload(img, adjusted_size[0], adjusted_size[1], global_evt, global_image_list[global_image_num + 1]);
119 // center the image on-screen
120 var main = document.getElementById("main");
121 main.style.position = "absolute";
122 main.style.left = (size[0] - adjusted_size[0]) / 2 + "px";
123 main.style.top = (size[1] - adjusted_size[1]) / 2 + "px";
124 main.style.width = adjusted_size[0] + "px";
125 main.style.height = adjusted_size[1] + "px";
126 main.style.lineHeight = adjusted_size[1] + "px";
128 set_opacity("previous", can_go_previous() ? 0.7 : 0.1);
129 set_opacity("next", can_go_next() ? 0.7 : 0.1);
130 set_opacity("close", 0.7);
133 function set_opacity(id, amount)
135 var elem = document.getElementById(id);
136 if (typeof(elem.style.opacity) != 'undefined') { // W3C
137 elem.style.opacity = amount;
138 } else if (typeof(elem.style.mozOpacity) != 'undefined') { // older Mozilla
139 elem.style.mozOpacity = amount;
140 } else if (typeof(elem.style.filter) != 'undefined') { // IE
141 if (elem.style.filter.indexOf("alpha") == -1) {
142 // add an alpha filter if there isn't one already
143 if (elem.style.filter) {
144 elem.style.filter += " ";
146 elem.style.filter = "";
148 elem.style.filter += "alpha(opacity=" + (amount*100.0) + ")";
150 // ugh? this seems to break in color index mode...
151 if (typeof(elem.filters) == 'unknown') {
152 elem.style.filter = "alpha(opacity=" + (amount*100.0) + ")";
154 elem.filters.alpha.opacity = (amount * 100.0);
157 } else { // no alpha support
159 elem.style.visibility = "visible";
160 elem.style.zorder = 1;
162 elem.style.visibility = "hidden";
167 function can_go_previous()
169 return (global_image_num > 0);
172 function go_previous()
174 if (!can_go_previous())
179 var adjusted_size = reduce_to_fixed_width(find_width());
181 var img = display_image(adjusted_size[0], adjusted_size[1], global_evt, global_image_list[global_image_num], "image");
182 if (can_go_previous()) {
183 set_opacity("previous", 0.7);
184 prepare_preload(img, adjusted_size[0], adjusted_size[1], global_evt, global_image_list[global_image_num - 1]);
186 set_opacity("previous", 0.1);
188 set_opacity("next", can_go_next() ? 0.7 : 0.1);
191 function can_go_next()
193 return (global_image_num < global_image_list.length - 1);
203 var adjusted_size = reduce_to_fixed_width(find_width());
205 var img = display_image(adjusted_size[0], adjusted_size[1], global_evt, global_image_list[global_image_num], "image");
207 set_opacity("next", 0.7);
208 prepare_preload(img, adjusted_size[0], adjusted_size[1], global_evt, global_image_list[global_image_num + 1]);
210 set_opacity("next", 0.1);
212 set_opacity("previous", can_go_previous() ? 0.7 : 0.1);
215 function key_down(which)
217 if (which == 39) { // right
219 set_opacity("next", 0.99);
221 } else if (which == 37) { // left
222 if (can_go_previous()) {
223 set_opacity("previous", 0.99);
225 } else if (which == 27) { // escape
226 set_opacity("close", 0.99);
230 function key_up(which) {
231 if (which == 39) { // right
233 set_opacity("next", 0.7);
236 } else if (which == 37) { // left
237 if (can_go_previous()) {
238 set_opacity("previous", 0.7);
241 } else if (which == 27) { // escape
242 set_opacity("close", 0.7);
244 } else if (which == 32 && global_select) { // space
245 select_image(global_image_list[global_image_num]);
249 function select_image(filename)
254 draw_text("Selecting " + filename + "...");
256 req.open("POST", "http://" + global_vhost + "/select", false);
257 req.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
258 req.send("mode=single&event=" + global_evt + "&filename=" + filename);
260 setTimeout("fade_text(0.99)", 30);
263 function fade_text(opacity)
265 set_opacity("text", opacity);
270 setTimeout("fade_text(" + opacity + ")", 30);
272 var text = document.getElementById("text");
274 text.parentNode.removeChild(text);
281 window.location = global_return_url;
284 function draw_text(msg)
286 // remove any text we might have left
287 var text = document.getElementById("text");
289 text.parentNode.removeChild(text);
292 text = document.createElement("p");
294 text.style.position = "absolute";
295 text.style.color = "white";
296 text.style.lineHeight = "24px";
297 text.style.font = "24px verdana, arial, sans-serif";
298 text.innerHTML = msg;
300 var main = document.getElementById("main");
301 main.appendChild(text);
303 text.style.left = (main.clientWidth - text.clientWidth) / 2 + "px";
304 text.style.top = (main.clientHeight - text.clientHeight) / 2 + "px";
307 // enable the horrible horrible IE PNG hack
308 function ie_png_hack()
310 var vstr = navigator.appVersion.split("MSIE");
311 var v = parseFloat(vstr[1]);
312 if (v >= 5.5 && v < 7.0 && document.body.filters) {
313 var next = document.getElementById("next");
314 next.outerHTML = "<span id=\"next\" style=\"display: inline-block; position: absolute; bottom: 0px; right: 0px; width: 50px; height: 50px; filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + next.src + "')\" onmousedown=\"if (can_go_next()) set_opacity('next', 1.0)\" onmouseup=\"if (can_go_next()) { set_opacity('next', 0.7); go_next(); }\" onmouseout=\"if (can_go_next()) { set_opacity('next', 0.7); }\" />";
316 var previous = document.getElementById("previous");
317 previous.outerHTML = "<span id=\"previous\" style=\"display: inline-block; position: absolute; bottom: 0px; right: 0px; width: 50px; height: 50px; filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + previous.src + "')\" onmousedown=\"if (can_go_previous()) set_opacity('previous', 1.0)\" onmouseup=\"if (can_go_previous()) { set_opacity('previous', 0.7); go_previous(); }\" onmouseout=\"if (can_go_previous()) { set_opacity('previous', 0.7); }\" />";
319 var close = document.getElementById("close");
320 close.outerHTML = "<span id=\"close\" style=\"display: inline-block; position: absolute; top: 0px; right: 0px; width: 50px; height: 50px; filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + close.src + "')\" onmousedown=\"set_opacity('close', 1.0)\" onmouseup=\"set_opacity('close', 0.7); do_close();\" onmouseout=\"set_opacity('close', 0.7);\" />";