Memories as at 1.3

[memories.git] / templates / static / upload.js

diff --git a/templates/static/upload.js b/templates/static/upload.js
new file mode 100644 (file)
index 0000000..0b033c6
--- /dev/null
+++ b/templates/static/upload.js
@@ -0,0 +1,82 @@
+String.prototype.trim = function(){ return this.replace(/^\s+|\s+$/g,'') }
+String.prototype.escRegExp = function(){ return this.replace(/[\\$*+?()=!|,{}\[\]\.^]/g,'\\$&') }
+String.prototype.unescHtml = function(){ var i,t=this; for(i in e) t=t.replace(new RegExp(i,'g'),e[i]); return t }
+function Suggestions() { this.length=0; this.picked=0 }
+var suggestions = new Suggestions();
+var tagSearch='', lastEdit='';
+var h={}, sections=[{},{},{},{},{},{}], selected={}, currentTag={},
+e={'&lt;':'<','&gt;':'>','&amp;':'&','&quot;':'"'};
+
+function init () {
+    document.onkeydown = document.onkeypress = document.onkeyup = handler
+    h.suggest = document.getElementById("suggestionlist");
+    h.tags = document.getElementById("tags");
+}
+
+function handler(event) { var e=(event||window.event) //w3||ie
+    if (e.type == 'keyup') {
+        switch(e.keyCode) {
+            //case 8:  //backspace
+            //case 46: //delete
+            case 35: //end
+            case 36: //home
+            case 39: // right
+            case 37: // left
+            case 32: // space
+                hideSuggestions(); break
+            case 38: case 40: break;
+            case 9: break;
+            case 13: break;
+            default: 
+            updateSuggestions()
+}}
+    else if (e.type == "keypress") { lastEdit = h.tags.value }
+}
+
+function makeTag(parent, tag, js) {
+    parent.appendChild(document.createTextNode(" "+ tag))
+}
+
+function updateSuggestions() {
+    while (h.suggest.hasChildNodes()) h.suggest.removeChild(h.suggest.firstChild)
+    if(!getCurrentTag() || !currentTag.text) { 
+        hideSuggestions(); return false 
+    }
+    var tagArray = h.tags.value.toLowerCase().split(' '),
+    txt=currentTag.text.trim().escRegExp(), tagHash={}, t
+    for(t in tagArray) tagHash[tagArray[t]] = true;
+
+    var search = tagList.match(new RegExp(("(?:^| )("+txt+"[^ ]+)"), "gi"))
+    if(search){
+        var i;
+        for (i=0; i<search.length; i++) {
+            var tl = search[i].trim()
+            if(tagHash[tl])  continue // do not suggest already typed tag
+            suggestions[suggestions.length] = makeTag(h.suggest, tl, 'complete')
+            suggestions.length++
+    }} 
+    if (suggestions.length > 0) { showSuggestions() } 
+    else { hideSuggestions(); }
+}
+
+function getCurrentTag() {
+    if(h.tags.value == lastEdit) return true // no edit
+    if(h.tags == '') return false
+    currentTag = {}
+    var tagArray=h.tags.value.toLowerCase().split(' '), oldArray=lastEdit.toLowerCase().split(' '), currentTags = [], matched=false, t,o
+    for (t in tagArray) {
+        for (o in oldArray) {
+            if(typeof oldArray[o] == 'undefined') { oldArray.splice(o,1); break }
+            if(tagArray[t] == oldArray[o]) { matched = true; oldArray.splice(o,1); break; }
+        }
+        if(!matched) currentTags[currentTags.length] = t
+        matched=false
+    }
+    // more than one word changed... abort
+    currentTag = { text:tagArray[currentTags[0]], index:currentTags[0] }
+    return true
+}
+
+
+function hideSuggestions() { h.suggest.style.visibility='hidden' }
+function showSuggestions() { h.suggest.style.visibility='visible' }