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dpavlin |
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/* |
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no pager, as seen at |
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http://www.humanized.com/weblog/2006/04/28/reading_humanized/ |
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*/ |
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function favorite( image, feedID ){ |
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var makeFavorite; |
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if (image.src.indexOf("fav_off.gif") != -1){ |
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image.src = "static/images/fav_on.gif"; |
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makeFavorite = "True"; |
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} |
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else if (image.src.indexOf("fav_on.gif") != -1){ |
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image.src = "static/images/fav_off.gif"; |
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makeFavorite = "False"; |
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} |
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doSimpleXMLHttpRequest("favorite", {id: feedID, makeFavorite: makeFavorite}) |
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} |
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function getMoreHistory(){ |
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var indexVal = getElement("history_index").value; |
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dpavlin |
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var q = getElement('q').value; |
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getElement('status').innerHTML = 'Loading page '+ ( parseInt(indexVal) + 1 ) + '...'; |
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var xmlDoc = doSimpleXMLHttpRequest("index.cgi/snippet", {index: indexVal, q: q}); |
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dpavlin |
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xmlDoc.addCallbacks(addMoreHistory, failure); |
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} |
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function failure(){ |
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var message = P( null, "" ); |
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message.innerHTML = "<strong>Could not contact the Humanized server.</strong> <br />"; |
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message.innerHTML += "Please wait awhile and try again. <br /><br />"; |
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message.innerHTML += "We apologize for the inconvenience."; |
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var el = getElement("more_history"); |
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} |
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function addMoreHistory( xmlDoc ){ |
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var response = xmlDoc.responseText; |
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var index_el = getElement("history_index"); |
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var indexVal = parseInt(index_el.value); |
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dpavlin |
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// minimum response length? |
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if (response.length < 500){ |
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dpavlin |
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showElement("footer") |
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if( indexVal > 0 ){ |
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var out = H2({'style':'text-align:center; font-style:italic; padding: 2em;'}, |
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"No more results." |
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); |
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}else{ |
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var out = H2({'style':'text-align:center; font-style:italic; padding: 2em;'}, |
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dpavlin |
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"No results matched your search." |
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dpavlin |
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); |
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} |
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replaceChildNodes( "more_history", out ) |
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dpavlin |
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getElement("status").innerHTML = ''; |
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dpavlin |
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return; |
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} |
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response += "<div id='more_history'>"; |
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response += " <strong>More posts are being loaded...</strong> <br />"; |
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response += " If you are using the scroll bar, release the mouse to see more posts."; |
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response += "</div>" |
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index_el.value = indexVal + 1; |
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var new_history = DIV(null,""); |
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new_history.innerHTML = response; |
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swapDOM( "more_history", new_history ); |
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isUpdating = false; |
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dpavlin |
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var status_update = getElement("status_update"); |
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var status = getElement("status"); |
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if (status_update && status) { |
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status.innerHTML = status_update.innerHTML; |
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log("status updated"); |
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} |
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dpavlin |
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} |
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function updatePage(){ |
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if ( isUpdating == false |
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dpavlin |
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&& mouseState == "up" |
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&& getPageHeight() - getScrollHeight() < preloadDistance){ |
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log("Getting segment: ", $("history_index").value); |
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setCookie(id, $("history_index").value ); |
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isUpdating = true; |
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dpavlin |
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getMoreHistory(); |
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} |
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checker.cancel(); |
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checker = callLater(checkInterval, updatePage); |
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} |
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function onMouseDown(e ){ |
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mouseState = "down"; |
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setCookie(id+"_height", getScrollHeight() ); |
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setCookie(id+"_scroll", getScrollHeight() - _getWindowHeight() ); |
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} |
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function onMouseUp(){ |
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mouseState = "up"; |
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} |
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var checker; |
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var checkInterval = .2; |
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var preloadDistance = 1000; |
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var isUpdating = false; |
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var mouseState = "up"; |
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var id; |
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function init( ){ |
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document.onmousedown = onMouseDown; |
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document.onmouseup = onMouseUp; |
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//createLoggingPane(true); |
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id = $("page_id").value; |
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logDebug("Page ID:", id); |
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logDebug("Page Cookie:", getCookie(id)); |
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var fromBackButton = false; |
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if( getCookie(id) ){ fromBackButton = true; } |
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else{ setCookie(id, "1") } |
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logDebug("From Back Button?:", fromBackButton); |
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if( fromBackButton ){ |
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logDebug( "Number of segments loaded: ", getCookie(id) ); |
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logDebug( "Should scroll to: ", getCookie(id+"_scroll") ); |
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$("spacer").style.height=getCookie(id+"_height")+"px"; |
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scroll( 0, getCookie(id+"_scroll") ); |
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} |
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getElement("history_index").value = 0; |
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checker = callLater(0, updatePage); |
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} |
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addLoadEvent(init); |
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