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Merge pull request #56 from ZiRo-/master

Add inline webm playback & make js files modular
This commit is contained in:
Jeff 2016-04-27 13:47:36 +00:00
commit a423b6bfe6
15 changed files with 544 additions and 228 deletions

21
build-js.sh Executable file
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#!/usr/bin/env bash
set -e
root=$(readlink -e $(dirname $0))
cd $root
if [ -z "$GOPATH" ]; then
export GOPATH=$PWD/go
mkdir -p $GOPATH
fi
if [ ! -f $GOPATH/bin/minify ]; then
go get github.com/tdewolff/minify/cmd/minify
fi
echo -e "//For source code and license information please check https://github.com/majestrate/nntpchan \n" > ./contrib/static/nntpchan.js
cat ./contrib/js/main.js_ | $GOPATH/bin/minify --mime=text/javascript >> ./contrib/static/nntpchan.js
for f in ./contrib/js/*.js ; do
cat $f | $GOPATH/bin/minify --mime=text/javascript >> ./contrib/static/nntpchan.js
done

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contrib/js/api.js Normal file
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// call an api method
// handler(json_object) on success
// handler(null) on fail
function nntpchan_apicall(url, handler, err_handler) {
var ajax = new XMLHttpRequest();
ajax.onreadystatechange = function() {
if (ajax.readyState == XMLHttpRequest.DONE ) {
var status = ajax.status;
var j = null;
if (status == 200) {
// found
try {
j = JSON.parse(ajax.responseText);
} catch (e) {} // ignore parse error
} else if (status == 410) {
if (err_handler) {err_handler("cannot fetch post: api disabled");}
return;
}
handler(j);
}
};
ajax.open("GET", url);
ajax.send();
}
// build post from json
// inject into parent
// if j is null then inject "not found" post
function nntpchan_buildpost(parent, j) {
var post = document.createElement("div");
if (j) {
// huehuehue
post.innerHTML = j.PostMarkup;
inject_hover_for_element(post);
} else {
post.setAttribute("class", "notfound post");
post.appendChild(document.createTextNode("post not found"));
}
parent.appendChild(post);
}

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contrib/js/backlink.js Normal file
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// insert a backlink for a post given its short hash
function nntpchan_backlink(shorthash) {
var elem = document.getElementById("postform_message");
if ( elem )
{
elem.value += ">>" + shorthash.substr(0,10) + "\n";
}
}
// inject post hover behavior
function inject_hover(prefix, el, parent) {
if (!prefix) { throw "prefix is not defined"; }
var linkhash = el.getAttribute("backlinkhash");
if (!linkhash) { throw "linkhash undefined"; }
console.log("rewrite linkhash "+linkhash);
var elem = document.createElement("span");
elem.setAttribute("class", "backlink_rewritten");
elem.appendChild(document.createTextNode(">>"+linkhash.substr(0,10)));
if (!parent) {
parent = el.parentNode;
}
parent.removeChild(el);
parent.appendChild(elem);
elem.onclick = function(ev) {
if(parent.backlink) {
nntpchan_apicall(prefix+"api/find?hash="+linkhash, function(j) {
var wrapper = document.createElement("div");
wrapper.setAttribute("class", "hover "+linkhash);
if (j == null) {
// not found?
wrapper.setAttribute("class", "hover notfound-hover "+linkhash);
wrapper.appendChild(document.createTextNode("not found"));
} else {
// wrap backlink
nntpchan_buildpost(wrapper, j);
}
parent.appendChild(wrapper);
parent.backlink = false;
}, function(msg) {
var wrapper = document.createElement("div");
wrapper.setAttribute("class", "hover "+linkhash);
wrapper.appendChild(document.createTextNode(msg));
parent.appendChild(wrapper);
parent.backlink = false;
});
} else {
var elems = document.getElementsByClassName(linkhash);
if (!elems) throw "bad state, no backlinks open?";
for (var idx = 0 ; idx < elems.length; idx ++ ) {
elems[idx].parentNode.removeChild(elems[idx]);
}
parent.backlink = true;
}
};
parent.backlink = true;
}
// inject post hover for all backlinks in an element
function inject_hover_for_element(elem) {
var elems = elem.getElementsByClassName("backlink");
var ls = [];
var l = elems.length;
for ( var idx = 0 ; idx < l ; idx ++ ) {
var e = elems[idx];
ls.push(e);
}
for( var elem in ls ) {
inject_hover(prefix, ls[elem]);
}
}
function init(prefix) {
// inject posthover ...
inject_hover_for_element(document);
}

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var banner_count = 3;
// inject a banner into an element
function nntpchan_inject_banners(elem, prefix) {
var n = Math.floor(Math.random() * banner_count);
var banner = prefix + "static/banner_"+n+".jpg";
var e = document.createElement("img");
e.src = banner;
e.id = "nntpchan_banner";
elem.appendChild(e);
}

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/* This file is dedicated to the public domain; you may do as you wish with it. */
/* Note: This code expects the global variable configRoot to be set. */
var configRoot = "";
if (typeof _ == 'undefined') {
var _ = function(a) { return a; };
}
function setupVideo(thumb, url) {
if (thumb.videoAlreadySetUp) return;
thumb.videoAlreadySetUp = true;
var video = null;
var videoContainer, videoHide;
var expanded = false;
var hovering = false;
//var loop = setting("videoloop");
var loop = true;
var loopControls = [document.createElement("span"), document.createElement("span")];
var fileInfo = thumb.parentNode.querySelector(".fileinfo");
var mouseDown = false;
function unexpand() {
if (expanded) {
expanded = false;
if (video.pause) video.pause();
videoContainer.style.display = "none";
thumb.style.display = "inline";
video.style.maxWidth = "inherit";
video.style.maxHeight = "inherit";
}
}
function unhover() {
if (hovering) {
hovering = false;
if (video.pause) video.pause();
videoContainer.style.display = "none";
video.style.maxWidth = "inherit";
video.style.maxHeight = "inherit";
}
}
// Create video element if does not exist yet
function getVideo() {
if (video == null) {
video = document.createElement("video");
video.src = url;
video.loop = loop;
video.innerText = _("Your browser does not support HTML5 video.");
videoHide = document.createElement("img");
videoHide.src = configRoot + "static/collapse.gif";
videoHide.alt = "[ - ]";
videoHide.title = "Collapse video";
videoHide.style.marginLeft = "-15px";
videoHide.style.cssFloat = "left";
videoHide.addEventListener("click", unexpand, false);
videoContainer = document.createElement("div");
videoContainer.style.paddingLeft = "15px";
videoContainer.style.display = "none";
videoContainer.appendChild(videoHide);
videoContainer.appendChild(video);
thumb.parentNode.insertBefore(videoContainer, thumb.nextSibling);
// Dragging to the left collapses the video
video.addEventListener("mousedown", function(e) {
if (e.button == 0) mouseDown = true;
}, false);
video.addEventListener("mouseup", function(e) {
if (e.button == 0) mouseDown = false;
}, false);
video.addEventListener("mouseenter", function(e) {
mouseDown = false;
}, false);
video.addEventListener("mouseout", function(e) {
if (mouseDown && e.clientX - video.getBoundingClientRect().left <= 0) {
unexpand();
}
mouseDown = false;
}, false);
}
}
// Clicking on thumbnail expands video
thumb.addEventListener("click", function(e) {
if (!e.shiftKey && !e.ctrlKey && !e.altKey && !e.metaKey) {
getVideo();
expanded = true;
hovering = false;
video.style.position = "static";
video.style.pointerEvents = "inherit";
video.style.display = "inline";
videoHide.style.display = "inline";
videoContainer.style.display = "block";
videoContainer.style.position = "static";
video.parentNode.parentNode.removeAttribute('style');
thumb.style.display = "none";
//video.muted = (setting("videovolume") == 0);
//video.volume = setting("videovolume");
video.controls = true;
if (video.readyState == 0) {
video.addEventListener("loadedmetadata", expand2, false);
} else {
setTimeout(expand2, 0);
}
video.play();
e.preventDefault();
}
}, false);
function expand2() {
video.style.maxWidth = "100%";
video.style.maxHeight = window.innerHeight + "px";
var bottom = video.getBoundingClientRect().bottom;
if (bottom > window.innerHeight) {
window.scrollBy(0, bottom - window.innerHeight);
}
// work around Firefox volume control bug
//video.volume = Math.max(setting("videovolume") - 0.001, 0);
//video.volume = setting("videovolume");
}
// Hovering over thumbnail displays video
thumb.addEventListener("mouseover", function(e) {
//if (setting("videohover")) {
if (false) { // DOESN'T WORK YET
getVideo();
expanded = false;
hovering = true;
var docRight = document.documentElement.getBoundingClientRect().right;
var thumbRight = thumb.querySelector("img, video").getBoundingClientRect().right;
var maxWidth = docRight - thumbRight - 20;
if (maxWidth < 250) maxWidth = 250;
video.style.position = "fixed";
video.style.right = "0px";
video.style.top = "0px";
var docRight = document.documentElement.getBoundingClientRect().right;
var thumbRight = thumb.querySelector("img, video").getBoundingClientRect().right;
video.style.maxWidth = maxWidth + "px";
video.style.maxHeight = "100%";
video.style.pointerEvents = "none";
video.style.display = "inline";
videoHide.style.display = "none";
videoContainer.style.display = "inline";
videoContainer.style.position = "fixed";
//video.muted = (setting("videovolume") == 0);
//video.volume = setting("videovolume");
video.controls = false;
video.play();
}
}, false);
thumb.addEventListener("mouseout", unhover, false);
// Scroll wheel on thumbnail adjusts default volume
thumb.addEventListener("wheel", function(e) {
//if (setting("videohover")) {
if (true) {
//var volume = setting("videovolume");
if (e.deltaY > 0) volume -= 0.1;
if (e.deltaY < 0) volume += 0.1;
if (volume < 0) volume = 0;
if (volume > 1) volume = 1;
if (video != null) {
video.muted = (volume == 0);
video.volume = volume;
}
//changeSetting("videovolume", volume);
e.preventDefault();
}
}, false);
// [play once] vs [loop] controls
/*function setupLoopControl(i) {
loopControls[i].addEventListener("click", function(e) {
loop = (i != 0);
thumb.href = thumb.href.replace(/([\?&])loop=\d+/, "$1loop=" + i);
if (video != null) {
video.loop = loop;
if (loop && video.currentTime >= video.duration) {
video.currentTime = 0;
}
}
loopControls[i].style.fontWeight = "bold";
loopControls[1-i].style.fontWeight = "inherit";
}, false);
}
loopControls[0].textContent = _("[play once]");
loopControls[1].textContent = _("[loop]");
loopControls[(setting("videoloop") ? 1 : 0)].style.fontWeight = "bold";
for (var i = 0; i < 2; i++) {
setupLoopControl(i);
loopControls[i].style.whiteSpace = "nowrap";
fileInfo.appendChild(document.createTextNode(" "));
fileInfo.appendChild(loopControls[i]);
}*/
}
function setupVideosIn(element) {
var thumbs = element.querySelectorAll("a.file");
for (var i = 0; i < thumbs.length; i++) {
if (/(\.webm)|(\.mp4)$/.test(thumbs[i].pathname)) {
setupVideo(thumbs[i], thumbs[i].href);
} else {
var url = thumbs[i].href
if (/(\.webm)|(\.mp4)$/.test(url)) setupVideo(thumbs[i], url);
}
}
}
onready(function(){
// Insert menu from settings.js
if (typeof settingsMenu != "undefined" && typeof Options == "undefined")
document.body.insertBefore(settingsMenu, document.getElementsByTagName("hr")[0]);
// Setup Javascript events for videos in document now
setupVideosIn(document);
// Setup Javascript events for videos added by updater
if (window.MutationObserver) {
var observer = new MutationObserver(function(mutations) {
for (var i = 0; i < mutations.length; i++) {
var additions = mutations[i].addedNodes;
if (additions == null) continue;
for (var j = 0; j < additions.length; j++) {
var node = additions[j];
if (node.nodeType == 1) {
setupVideosIn(node);
}
}
}
});
observer.observe(document.body, {childList: true, subtree: true});
}
});

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function livechan_got_post(widget, j) {
// do scroll
while (widget.children.length > 5) {
// remove top element
widget.removeChild(widget.children[0]);
}
nntpchan_buildpost(widget, j);
// scroll to bottom
widget.scrollTop = widget.scrollHeight;
}
// inject post form into an element
function inject_postform(prefix, parent) {
}
// inject livechan widget into parent
function inject_livechan_widget(prefix, parent) {
if ( "WebSocket" in window ) {
var url = "ws://"+document.location.host+prefix+"live";
if ( document.location.protocol == "https:" ) {
url = "wss://"+document.location.host+prefix+"live";
}
var socket = new WebSocket(url);
var progress = function(str) {
parent.innerHTML = "<pre>livechan: "+str+"</pre>";
};
progress("initialize");
socket.onopen = function () {
progress("streaming (read only)");
}
socket.onmessage = function(ev) {
var j = null;
try {
j = JSON.parse(ev.data);
} catch(e) {
// ignore
}
if (j) {
console.log(j);
livechan_got_post(parent, j);
}
}
socket.onclose = function(ev) {
progress("connection closed");
setTimeout(function() {
inject_livechan_widget(prefix, parent);
}, 1000);
}
} else {
parent.innerHTML = "<pre>livechan mode requires websocket support</pre>";
setTimeout(function() {
parent.innerHTML = "";
}, 5000);
}
}
function ukko_livechan(prefix) {
var ukko = document.getElementById("ukko_threads");
if (ukko) {
// remove children
ukko.innerHTML = "";
inject_livechan_widget(prefix, ukko);
}
}

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function get_storage() {
var st = null;
if (window.localStorage) {
st = window.localStorage;
} else if (localStorage) {
st = localStorage;
}
return st;
}

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onready_callbacks = [];
function onready(fnc) {
onready_callbacks.push(fnc);
}
function ready() {
for (var i = 0; i < onready_callbacks.length; i++) {
onready_callbacks[i]();
}
}

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function enable_theme(prefix, name) {
if (prefix && name) {
var theme = document.getElementById("current_theme");
if (theme) {
theme.href = prefix + "static/"+ name + ".css";
var st = get_storage();
st.nntpchan_prefix = prefix;
st.nntpchan_theme = name;
}
}
}
// apply themes
var st = get_storage();
enable_theme(st.nntpchan_prefix, st.nntpchan_theme);

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// //For source code and license information please check https://github.com/majestrate/nntpchan
// nntpchan.js -- frontend ui niceness
//
onready_callbacks=[];function onready(fnc){onready_callbacks.push(fnc);}
// insert a backlink for a post given its short hash function ready(){for(var i=0;i<onready_callbacks.length;i++){onready_callbacks[i]();}}function nntpchan_apicall(url,handler,err_handler){var ajax=new XMLHttpRequest();ajax.onreadystatechange=function(){if(ajax.readyState==XMLHttpRequest.DONE){var status=ajax.status;var j=null;if(status==200){try{j=JSON.parse(ajax.responseText);}catch(e){}}else if(status==410){if(err_handler){err_handler("cannot fetch post: api disabled");}
function nntpchan_backlink(shorthash) { return;}
var elem = document.getElementById("postform_message"); handler(j);}};ajax.open("GET",url);ajax.send();}
if ( elem ) function nntpchan_buildpost(parent,j){var post=document.createElement("div");if(j){post.innerHTML=j.PostMarkup;inject_hover_for_element(post);}else{post.setAttribute("class","notfound post");post.appendChild(document.createTextNode("post not found"));}
{ parent.appendChild(post);}function nntpchan_backlink(shorthash){var elem=document.getElementById("postform_message");if(elem)
elem.value += ">>" + shorthash.substr(0,10) + "\n"; {elem.value+=">>"+shorthash.substr(0,10)+"\n";}}
} function inject_hover(prefix,el,parent){if(!prefix){throw"prefix is not defined";}
} var linkhash=el.getAttribute("backlinkhash");if(!linkhash){throw"linkhash undefined";}
console.log("rewrite linkhash "+linkhash);var elem=document.createElement("span");elem.setAttribute("class","backlink_rewritten");elem.appendChild(document.createTextNode(">>"+linkhash.substr(0,10)));if(!parent){parent=el.parentNode;}
function get_storage() { parent.removeChild(el);parent.appendChild(elem);elem.onclick=function(ev){if(parent.backlink){nntpchan_apicall(prefix+"api/find?hash="+linkhash,function(j){var wrapper=document.createElement("div");wrapper.setAttribute("class","hover "+linkhash);if(j==null){wrapper.setAttribute("class","hover notfound-hover "+linkhash);wrapper.appendChild(document.createTextNode("not found"));}else{nntpchan_buildpost(wrapper,j);}
var st = null; parent.appendChild(wrapper);parent.backlink=false;},function(msg){var wrapper=document.createElement("div");wrapper.setAttribute("class","hover "+linkhash);wrapper.appendChild(document.createTextNode(msg));parent.appendChild(wrapper);parent.backlink=false;});}else{var elems=document.getElementsByClassName(linkhash);if(!elems)throw"bad state, no backlinks open?";for(var idx=0;idx<elems.length;idx++){elems[idx].parentNode.removeChild(elems[idx]);}
if (window.localStorage) { parent.backlink=true;}};parent.backlink=true;}
st = window.localStorage; function inject_hover_for_element(elem){var elems=elem.getElementsByClassName("backlink");var ls=[];var l=elems.length;for(var idx=0;idx<l;idx++){var e=elems[idx];ls.push(e);}
} else if (localStorage) { for(var elem in ls){inject_hover(prefix,ls[elem]);}}
st = localStorage; function init(prefix){inject_hover_for_element(document);}var banner_count=3;function nntpchan_inject_banners(elem,prefix){var n=Math.floor(Math.random()*banner_count);var banner=prefix+"static/banner_"+n+".jpg";var e=document.createElement("img");e.src=banner;e.id="nntpchan_banner";elem.appendChild(e);}var configRoot="";if(typeof _=='undefined'){var _=function(a){return a;};}
} function setupVideo(thumb,url){if(thumb.videoAlreadySetUp)return;thumb.videoAlreadySetUp=true;var video=null;var videoContainer,videoHide;var expanded=false;var hovering=false;var loop=true;var loopControls=[document.createElement("span"),document.createElement("span")];var fileInfo=thumb.parentNode.querySelector(".fileinfo");var mouseDown=false;function unexpand(){if(expanded){expanded=false;if(video.pause)video.pause();videoContainer.style.display="none";thumb.style.display="inline";video.style.maxWidth="inherit";video.style.maxHeight="inherit";}}
return st; function unhover(){if(hovering){hovering=false;if(video.pause)video.pause();videoContainer.style.display="none";video.style.maxWidth="inherit";video.style.maxHeight="inherit";}}
} function getVideo(){if(video==null){video=document.createElement("video");video.src=url;video.loop=loop;video.innerText=_("Your browser does not support HTML5 video.");videoHide=document.createElement("img");videoHide.src=configRoot+"static/collapse.gif";videoHide.alt="[ - ]";videoHide.title="Collapse video";videoHide.style.marginLeft="-15px";videoHide.style.cssFloat="left";videoHide.addEventListener("click",unexpand,false);videoContainer=document.createElement("div");videoContainer.style.paddingLeft="15px";videoContainer.style.display="none";videoContainer.appendChild(videoHide);videoContainer.appendChild(video);thumb.parentNode.insertBefore(videoContainer,thumb.nextSibling);video.addEventListener("mousedown",function(e){if(e.button==0)mouseDown=true;},false);video.addEventListener("mouseup",function(e){if(e.button==0)mouseDown=false;},false);video.addEventListener("mouseenter",function(e){mouseDown=false;},false);video.addEventListener("mouseout",function(e){if(mouseDown&&e.clientX-video.getBoundingClientRect().left<=0){unexpand();}
mouseDown=false;},false);}}
function enable_theme(prefix, name) { thumb.addEventListener("click",function(e){if(!e.shiftKey&&!e.ctrlKey&&!e.altKey&&!e.metaKey){getVideo();expanded=true;hovering=false;video.style.position="static";video.style.pointerEvents="inherit";video.style.display="inline";videoHide.style.display="inline";videoContainer.style.display="block";videoContainer.style.position="static";video.parentNode.parentNode.removeAttribute('style');thumb.style.display="none";video.controls=true;if(video.readyState==0){video.addEventListener("loadedmetadata",expand2,false);}else{setTimeout(expand2,0);}
if (prefix && name) { video.play();e.preventDefault();}},false);function expand2(){video.style.maxWidth="100%";video.style.maxHeight=window.innerHeight+"px";var bottom=video.getBoundingClientRect().bottom;if(bottom>window.innerHeight){window.scrollBy(0,bottom-window.innerHeight);}}
var theme = document.getElementById("current_theme"); thumb.addEventListener("mouseover",function(e){if(false){getVideo();expanded=false;hovering=true;var docRight=document.documentElement.getBoundingClientRect().right;var thumbRight=thumb.querySelector("img, video").getBoundingClientRect().right;var maxWidth=docRight-thumbRight-20;if(maxWidth<250)maxWidth=250;video.style.position="fixed";video.style.right="0px";video.style.top="0px";var docRight=document.documentElement.getBoundingClientRect().right;var thumbRight=thumb.querySelector("img, video").getBoundingClientRect().right;video.style.maxWidth=maxWidth+"px";video.style.maxHeight="100%";video.style.pointerEvents="none";video.style.display="inline";videoHide.style.display="none";videoContainer.style.display="inline";videoContainer.style.position="fixed";video.controls=false;video.play();}},false);thumb.addEventListener("mouseout",unhover,false);thumb.addEventListener("wheel",function(e){if(true){if(e.deltaY>0)volume-=0.1;if(e.deltaY<0)volume+=0.1;if(volume<0)volume=0;if(volume>1)volume=1;if(video!=null){video.muted=(volume==0);video.volume=volume;}
if (theme) { e.preventDefault();}},false);}
theme.href = prefix + "static/"+ name + ".css"; function setupVideosIn(element){var thumbs=element.querySelectorAll("a.file");for(var i=0;i<thumbs.length;i++){if(/(\.webm)|(\.mp4)$/.test(thumbs[i].pathname)){setupVideo(thumbs[i],thumbs[i].href);}else{var url=thumbs[i].href
var st = get_storage(); if(/(\.webm)|(\.mp4)$/.test(url))setupVideo(thumbs[i],url);}}}
st.nntpchan_prefix = prefix; onready(function(){if(typeof settingsMenu!="undefined"&&typeof Options=="undefined")
st.nntpchan_theme = name; document.body.insertBefore(settingsMenu,document.getElementsByTagName("hr")[0]);setupVideosIn(document);if(window.MutationObserver){var observer=new MutationObserver(function(mutations){for(var i=0;i<mutations.length;i++){var additions=mutations[i].addedNodes;if(additions==null)continue;for(var j=0;j<additions.length;j++){var node=additions[j];if(node.nodeType==1){setupVideosIn(node);}}}});observer.observe(document.body,{childList:true,subtree:true});}});function livechan_got_post(widget,j){while(widget.children.length>5){widget.removeChild(widget.children[0]);}
} nntpchan_buildpost(widget,j);widget.scrollTop=widget.scrollHeight;}
} function inject_postform(prefix,parent){}
} function inject_livechan_widget(prefix,parent){if("WebSocket"in window){var url="ws://"+document.location.host+prefix+"live";if(document.location.protocol=="https:"){url="wss://"+document.location.host+prefix+"live";}
var socket=new WebSocket(url);var progress=function(str){parent.innerHTML="<pre>livechan: "+str+"</pre>";};progress("initialize");socket.onopen=function(){progress("streaming (read only)");}
socket.onmessage=function(ev){var j=null;try{j=JSON.parse(ev.data);}catch(e){}
// call an api method if(j){console.log(j);livechan_got_post(parent,j);}}
// handler(json_object) on success socket.onclose=function(ev){progress("connection closed");setTimeout(function(){inject_livechan_widget(prefix,parent);},1000);}}else{parent.innerHTML="<pre>livechan mode requires websocket support</pre>";setTimeout(function(){parent.innerHTML="";},5000);}}
// handler(null) on fail function ukko_livechan(prefix){var ukko=document.getElementById("ukko_threads");if(ukko){ukko.innerHTML="";inject_livechan_widget(prefix,ukko);}}function get_storage(){var st=null;if(window.localStorage){st=window.localStorage;}else if(localStorage){st=localStorage;}
function nntpchan_apicall(url, handler, err_handler) { return st;}function enable_theme(prefix,name){if(prefix&&name){var theme=document.getElementById("current_theme");if(theme){theme.href=prefix+"static/"+name+".css";var st=get_storage();st.nntpchan_prefix=prefix;st.nntpchan_theme=name;}}}
var ajax = new XMLHttpRequest(); var st=get_storage();enable_theme(st.nntpchan_prefix,st.nntpchan_theme);
ajax.onreadystatechange = function() {
if (ajax.readyState == XMLHttpRequest.DONE ) {
var status = ajax.status;
var j = null;
if (status == 200) {
// found
try {
j = JSON.parse(ajax.responseText);
} catch (e) {} // ignore parse error
} else if (status == 410) {
if (err_handler) {err_handler("cannot fetch post: api disabled");}
return;
}
handler(j);
}
};
ajax.open("GET", url);
ajax.send();
}
// build post from json
// inject into parent
// if j is null then inject "not found" post
function nntpchan_buildpost(parent, j) {
var post = document.createElement("div");
if (j) {
// huehuehue
post.innerHTML = j.PostMarkup;
inject_hover_for_element(post);
} else {
post.setAttribute("class", "notfound post");
post.appendChild(document.createTextNode("post not found"));
}
parent.appendChild(post);
}
// inject post hover behavior
function inject_hover(prefix, el, parent) {
if (!prefix) { throw "prefix is not defined"; }
var linkhash = el.getAttribute("backlinkhash");
if (!linkhash) { throw "linkhash undefined"; }
console.log("rewrite linkhash "+linkhash);
var elem = document.createElement("span");
elem.setAttribute("class", "backlink_rewritten");
elem.appendChild(document.createTextNode(">>"+linkhash.substr(0,10)));
if (!parent) {
parent = el.parentNode;
}
parent.removeChild(el);
parent.appendChild(elem);
elem.onclick = function(ev) {
if(parent.backlink) {
nntpchan_apicall(prefix+"api/find?hash="+linkhash, function(j) {
var wrapper = document.createElement("div");
wrapper.setAttribute("class", "hover "+linkhash);
if (j == null) {
// not found?
wrapper.setAttribute("class", "hover notfound-hover "+linkhash);
wrapper.appendChild(document.createTextNode("not found"));
} else {
// wrap backlink
nntpchan_buildpost(wrapper, j);
}
parent.appendChild(wrapper);
parent.backlink = false;
}, function(msg) {
var wrapper = document.createElement("div");
wrapper.setAttribute("class", "hover "+linkhash);
wrapper.appendChild(document.createTextNode(msg));
parent.appendChild(wrapper);
parent.backlink = false;
});
} else {
var elems = document.getElementsByClassName(linkhash);
if (!elems) throw "bad state, no backlinks open?";
for (var idx = 0 ; idx < elems.length; idx ++ ) {
elems[idx].parentNode.removeChild(elems[idx]);
}
parent.backlink = true;
}
};
parent.backlink = true;
}
function livechan_got_post(widget, j) {
// do scroll
while (widget.children.length > 5) {
// remove top element
widget.removeChild(widget.children[0]);
}
nntpchan_buildpost(widget, j);
// scroll to bottom
widget.scrollTop = widget.scrollHeight;
}
// inject post form into an element
function inject_postform(prefix, parent) {
}
// inject livechan widget into parent
function inject_livechan_widget(prefix, parent) {
if ( "WebSocket" in window ) {
var url = "ws://"+document.location.host+prefix+"live";
if ( document.location.protocol == "https:" ) {
url = "wss://"+document.location.host+prefix+"live";
}
var socket = new WebSocket(url);
var progress = function(str) {
parent.innerHTML = "<pre>livechan: "+str+"</pre>";
};
progress("initialize");
socket.onopen = function () {
progress("streaming (read only)");
}
socket.onmessage = function(ev) {
var j = null;
try {
j = JSON.parse(ev.data);
} catch(e) {
// ignore
}
if (j) {
console.log(j);
livechan_got_post(parent, j);
}
}
socket.onclose = function(ev) {
progress("connection closed");
setTimeout(function() {
inject_livechan_widget(prefix, parent);
}, 1000);
}
} else {
parent.innerHTML = "<pre>livechan mode requires websocket support</pre>";
setTimeout(function() {
parent.innerHTML = "";
}, 5000);
}
}
function ukko_livechan(prefix) {
var ukko = document.getElementById("ukko_threads");
if (ukko) {
// remove children
ukko.innerHTML = "";
inject_livechan_widget(prefix, ukko);
}
}
var banner_count = 3;
// inject a banner into an element
function nntpchan_inject_banners(elem, prefix) {
var n = Math.floor(Math.random() * banner_count);
var banner = prefix + "static/banner_"+n+".jpg";
var e = document.createElement("img");
e.src = banner;
e.id = "nntpchan_banner";
elem.appendChild(e);
}
// inject post hover for all backlinks in an element
function inject_hover_for_element(elem) {
var elems = elem.getElementsByClassName("backlink");
var ls = [];
var l = elems.length;
for ( var idx = 0 ; idx < l ; idx ++ ) {
var e = elems[idx];
ls.push(e);
}
for( var elem in ls ) {
inject_hover(prefix, ls[elem]);
}
}
function init(prefix) {
// inject posthover ...
inject_hover_for_element(document);
}
// apply themes
var st = get_storage();
enable_theme(st.nntpchan_prefix, st.nntpchan_theme);

View File

@ -59,6 +59,7 @@
var e = document.getElementById("nntpchan_banner"); var e = document.getElementById("nntpchan_banner");
nntpchan_inject_banners(e, prefix); nntpchan_inject_banners(e, prefix);
init(prefix); init(prefix);
ready();
</script> </script>
<hr/> <hr/>
<footer> <footer>

View File

@ -22,7 +22,7 @@
{{#post.Attachments}} {{#post.Attachments}}
<figure> <figure>
<figcaption> <figcaption>
<a href="{{Source}}" title="{{Filename}}" target="_blank"><img src="{{Thumbnail}}" alt="{{Filename}}" class="thumbnail"/></a> <a class="file" href="{{Source}}" title="{{Filename}}" target="_blank"><img src="{{Thumbnail}}" alt="{{Filename}}" class="thumbnail"/></a>
</figcaption> </figcaption>
</figure> </figure>
{{/post.Attachments}} {{/post.Attachments}}

View File

@ -49,6 +49,7 @@
var e = document.getElementById("nntpchan_banner"); var e = document.getElementById("nntpchan_banner");
nntpchan_inject_banners(e, prefix); nntpchan_inject_banners(e, prefix);
init(prefix); init(prefix);
ready();
</script> </script>
<hr/> <hr/>
<footer> <footer>

View File

@ -41,6 +41,7 @@
var e = document.getElementById("nntpchan_banner"); var e = document.getElementById("nntpchan_banner");
nntpchan_inject_banners(e, prefix); nntpchan_inject_banners(e, prefix);
init(prefix); init(prefix);
ready();
</script> </script>
<hr/> <hr/>
<footer> <footer>