From 99d99cff1b1e27992fe52e8fa28a8fa0d024a58a Mon Sep 17 00:00:00 2001
From: dongsheng <dongsheng>
Date: Wed, 23 Jul 2008 12:17:38 +0000
Subject: [PATCH] MDL-13766, rewrite ajax client code, encapsulate all
 javascrpt code in repository class, which is easy to reuse now.

---
 repository/ajax.php                    | 619 ++++++++++++-------------
 repository/boxnet/repository.class.php |   2 +-
 repository/flickr/repository.class.php |   2 +-
 3 files changed, 304 insertions(+), 319 deletions(-)

diff --git a/repository/ajax.php b/repository/ajax.php
index e327f5a833..6f9ddf7398 100644
--- a/repository/ajax.php
+++ b/repository/ajax.php
@@ -12,7 +12,6 @@ require_once('lib.php');
   picker.
 
 \*******************************************************/
-$itempic = $CFG->pixpath.'/i/item.gif';
 $meta = <<<EOD
 <link rel="stylesheet" type="text/css" href="../lib/yui/reset-fonts-grids/reset-fonts-grids.css" />
 <link rel="stylesheet" type="text/css" href="../lib/yui/reset/reset-min.css" />
@@ -22,54 +21,36 @@ $meta = <<<EOD
 <link rel="stylesheet" type="text/css" href="../lib/yui/button/assets/skins/sam/button.css" />
 <link rel="stylesheet" type="text/css" href="../lib/yui/menu/assets/skins/sam/menu.css" />
 <style type="text/css">
-body {
-  margin:0;
-  padding:0;
-  background: #FFF7C6;
-}
-#demo .yui-resize-handle-br {
-    height: 11px;
-    width: 11px;
-    background-position: -20px -60px;
-    background-color: transparent;
-}
-#panel{padding:0;margin:0; text-align:left;}
-#list{line-height: 1.5em}
-#list li{
-background: url($itempic) no-repeat 0 2px;
-padding-left: 16px
-}
-#list a{
-padding: 3px
-}
-#list li a:hover{
-background: gray;
-color:white;
-}
-.t{width:80px; float:left;text-align:center;}
-.t div{width: 80px; height: 36px; overflow: hidden}
-.repo-opt{font-size: 10px;color:red}
+body {margin:0; padding:0; background: #FFF7C6;}
 img{margin:0;padding:0;border:0}
+#list{line-height: 1.5em}
+#list a{ padding: 3px }
+#list li a:hover{ background: gray; color:white; }
 #paging{margin:10px 5px; clear:both}
 #paging a{padding: 4px; border: 1px solid gray}
+#panel{padding:0;margin:0; text-align:left;}
 .file_name{color:green;}
 .file_date{color:blue}
 .file_size{color:gray}
+.grid{width:80px; float:left;text-align:center;}
+.grid div{width: 80px; height: 36px; overflow: hidden}
+.repo-opt{font-size: 10px;color:red}
 </style>
-<script type="text/javascript" src="../lib/yui/yahoo/yahoo-min.js"></script>
-<script type="text/javascript" src="../lib/yui/event/event-min.js"></script>
-<script type="text/javascript" src="../lib/yui/dom/dom-min.js"></script>
-<script type="text/javascript" src="../lib/yui/element/element-beta-min.js"></script>
-<script type="text/javascript" src="../lib/yui/dragdrop/dragdrop-min.js"></script>
-<script type="text/javascript" src="../lib/yui/container/container-min.js"></script>
-<script type="text/javascript" src="../lib/yui/resize/resize-beta-min.js"></script>
-<script type="text/javascript" src="../lib/yui/animation/animation-min.js"></script>
-<script type="text/javascript" src="../lib/yui/layout/layout-beta-min.js"></script>
+<script type="text/javascript" src="../lib/yui/yahoo/yahoo.js"></script>
+<script type="text/javascript" src="../lib/yui/event/event.js"></script>
+<script type="text/javascript" src="../lib/yui/dom/dom.js"></script>
+<script type="text/javascript" src="../lib/yui/element/element-beta.js"></script>
+<script type="text/javascript" src="../lib/yui/dragdrop/dragdrop.js"></script>
+<script type="text/javascript" src="../lib/yui/container/container.js"></script>
+<script type="text/javascript" src="../lib/yui/resize/resize-beta.js"></script>
+<script type="text/javascript" src="../lib/yui/animation/animation.js"></script>
+<script type="text/javascript" src="../lib/yui/layout/layout-beta.js"></script>
 <script type="text/javascript" src="../lib/yui/connection/connection.js"></script>
-<script type="text/javascript" src="../lib/yui/json/json-min.js"></script>
-<script type="text/javascript" src="../lib/yui/menu/menu-min.js"></script>
-<script type="text/javascript" src="../lib/yui/button/button-min.js"></script>
-<script type="text/javascript" src="../lib/yui/selector/selector-beta-min.js"></script>
+<script type="text/javascript" src="../lib/yui/json/json.js"></script>
+<script type="text/javascript" src="../lib/yui/menu/menu.js"></script>
+<script type="text/javascript" src="../lib/yui/button/button-debug.js"></script>
+<script type="text/javascript" src="../lib/yui/selector/selector-beta.js"></script>
+<script type="text/javascript" src="../lib/yui/logger/logger.js"></script>
 EOD;
 echo $meta;
 ?>
@@ -85,308 +66,312 @@ echo $meta;
 </div>
 
 <script type="text/javascript">
-var repositoryid = 0;
-var datasource, Dom = YAHOO.util.Dom, Event = YAHOO.util.Event, layout = null, resize = null;
-var viewbar  = null;
-var viewmode = 0;
-var repos = [];
-<?php
-$repos = repository_instances();
-foreach($repos as $repo) {
-    echo 'repos.push('.json_encode($repo).')';
-    echo "\n";
-}
-?>
-
-/**
- * this function will create a file picker dialog, and resigister all the event
- * of component
- */
-function openpicker(){
-    // QUIRKS FLAG, FOR BOX MODEL
-    var IE_QUIRKS = (YAHOO.env.ua.ie && document.compatMode == "BackCompat");
-    // UNDERLAY/IFRAME SYNC REQUIRED
-    var IE_SYNC = (YAHOO.env.ua.ie == 6 || (YAHOO.env.ua.ie == 7 && IE_QUIRKS));
-    // PADDING USED FOR BODY ELEMENT (Hardcoded for example)
-    var PANEL_BODY_PADDING = (10*2);
-    // 10px top/bottom padding applied to Panel body element. The top/bottom border width is 0
-    var panel = new YAHOO.widget.Panel('file-picker', {
-        draggable: true,
-        close: false,
-        underlay: 'none',
-        width: '510px',
-        xy: [100, 100]
-    });
-    panel.setHeader('Moodle Repository Picker');
-    panel.setBody('<div id="layout"></div>');
-    panel.beforeRenderEvent.subscribe(function() {
-        Event.onAvailable('layout', function() {
-            layout = new YAHOO.widget.Layout('layout', {
-                height: 400,
-                width: 490,
-                units: [
-                    {position: 'top', height: 32, resize: false, body:'<div class="yui-buttongroup" id="viewbar"></div>', gutter: '2'},
-                    { position: 'left', width: 150, resize: true, body: '<ul id="list"></ul>', gutter: '0 5 0 2', minWidth: 150, maxWidth: 300 },
-                    { position: 'center', body: '<div id="panel"></div>', scroll: true, gutter: '0 2 0 0' }
-                ]
-            });
-
-            layout.render();
+var repository_client = (function() {
+    // private static field
+    var dver = '1.0';
+    // private static methods
+    function alert_version(){
+        alert(dver);
+    }
+    function _client(){
+        // public varible
+        this.name = 'repository_client';
+        // private varible
+        var Dom = YAHOO.util.Dom, Event = YAHOO.util.Event, layout = null, resize = null;
+        var IE_QUIRKS = (YAHOO.env.ua.ie && document.compatMode == "BackCompat");
+        var IE_SYNC = (YAHOO.env.ua.ie == 6 || (YAHOO.env.ua.ie == 7 && IE_QUIRKS));
+        var PANEL_BODY_PADDING = (10*2);
+        var btn_list = {label: 'List', value: 'l', checked: true, onclick: {fn: _client.viewlist}};
+        var btn_thumb = {label: 'Thumbnail', value: 't', onclick: {fn: _client.viewthumb}};
+        var select = new YAHOO.util.Element('select');
+        var list = null;
+        var resize = null;
+        var panel = new YAHOO.widget.Panel('file-picker', {
+            draggable: true,
+            close: false,
+            underlay: 'none',
+            width: '510px',
+            xy: [100, 100]
         });
-    });
-    panel.render();
-    resize = new YAHOO.util.Resize('file-picker', {
-        handles: ['br'],
-        autoRatio: true,
-        status: true,
-        minWidth: 380,
-        minHeight: 400
-    });
-    resize.on('resize', function(args) {
-        var panelHeight = args.height;
-        var headerHeight = this.header.offsetHeight; // Content + Padding + Border
-        var bodyHeight = (panelHeight - headerHeight);
-        var bodyContentHeight = (IE_QUIRKS) ? bodyHeight : bodyHeight - PANEL_BODY_PADDING;
-        YAHOO.util.Dom.setStyle(this.body, 'height', bodyContentHeight + 'px');
-        if (IE_SYNC) {
-            this.sizeUnderlay();
-            this.syncIframe();
-        }
-        layout.set('height', bodyContentHeight);
-        layout.set('width', (args.width - PANEL_BODY_PADDING));
-        layout.resize();
-
-    }, panel, true);
-    var list = new YAHOO.util.Element('list');
-    list.on('contentReady', function(e){
-            for(var i=0; i<repos.length; i++) {
-                var repo = repos[i];
-                li = document.createElement('li');
-                li.innerHTML = '<a href="###" id="repo-call-'+repo.id+'">'+
-                    repo.repositoryname+'</a><br/>';
-                li.innerHTML += '<a href="###" class="repo-opt" onclick=\'dosearch('+repo.id+')\'>search</a>';
-                li.innerHTML += '<a href="###" class="repo-opt" id="repo-logout-'+repo.id+'">Logout </a>';
-                li.id = 'repo-'+repo.id;
-                this.appendChild(li);
-                var e = new YAHOO.util.Element('repo-call-'+repo.id);
-                e.on('click', function(e){
-                    var re = /repo-call-(\d+)/i;
-                    var id = this.get('id').match(re);
-                    cr(id[1], 1, 0);
+        // construct code section
+        {
+            panel.setHeader('Moodle Repository Picker');
+            panel.setBody('<div id="layout"></div>');
+            panel.beforeRenderEvent.subscribe(function() {
+                Event.onAvailable('layout', function() {
+                    layout = new YAHOO.widget.Layout('layout', {
+                        height: 400, width: 490,
+                        units: [
+                            {position: 'top', height: 32, resize: false, 
+                            body:'<div class="yui-buttongroup" id="repo-viewbar"></div>', gutter: '2'},
+                            {position: 'left', width: 150, resize: true, 
+                            body:'<ul id="repo-list"></ul>', gutter: '0 5 0 2', minWidth: 150, maxWidth: 300 },
+                            {position: 'center', body: '<div id="panel"></div>', 
+                            scroll: true, gutter: '0 2 0 0' }
+                        ]
                     });
-                e = new YAHOO.util.Element('repo-logout-'+repo.id);
-                e.on('click', function(e){
-                    var re = /repo-logout-(\d+)/i;
-                    var id = this.get('id').match(re);
-                    cr(id[1], 1, 1);
-                    });
-                repo = null;
-            }
-        });
-    viewbar = new YAHOO.widget.ButtonGroup({
-            id: 'btngroup',
-            name: 'buttons',
-            disabled: true,
-            container: 'viewbar'
+                    layout.render();
+                });
+            });
+            resize = new YAHOO.util.Resize('file-picker', {
+                handles: ['br'],
+                autoRatio: true,
+                status: true,
+                minWidth: 380,
+                minHeight: 400
             });
-    var btn_list = {label: 'List', value: 'l', checked: true, onclick: {fn: viewlist}};
-    var btn_thumb = {label: 'Thumbnail', value: 't', onclick: {fn: viewthumb}};
-    viewbar.addButtons([btn_list, btn_thumb]);
-    var select = new YAHOO.util.Element('select');
-};
+            resize.on('resize', function(args) {
+                var panelHeight = args.height;
+                var headerHeight = this.header.offsetHeight; // Content + Padding + Border
+                var bodyHeight = (panelHeight - headerHeight);
+                var bodyContentHeight = (IE_QUIRKS) ? bodyHeight : bodyHeight - PANEL_BODY_PADDING;
+                YAHOO.util.Dom.setStyle(this.body, 'height', bodyContentHeight + 'px');
+                if (IE_SYNC) {
+                    this.sizeUnderlay();
+                    this.syncIframe();
+                }
+                layout.set('height', bodyContentHeight);
+                layout.set('width', (args.width - PANEL_BODY_PADDING));
+                layout.resize();
 
-function postdata(obj) {
-    var str = '';
-    for(k in obj) {
-        if(obj[k] instanceof Array) {
-            for(i in obj[k]) {
-                str += (encodeURIComponent(k) +'[]='+encodeURIComponent(obj[k][i]));
+            }, panel, true);
+            _client.viewbar = new YAHOO.widget.ButtonGroup({
+                id: 'btngroup',
+                name: 'buttons',
+                disabled: true,
+                container: 'repo-viewbar'
+                });
+        }
+        // public method
+        this.create_picker = function(){
+            // display UI
+            panel.render();
+            _client.viewbar.addButtons([btn_list, btn_thumb]);
+            // init repository list
+            list = new YAHOO.util.Element('repo-list');
+            list.on('contentReady', function(e){
+                for(var i=0; i<_client.repos.length; i++) {
+                    var repo = _client.repos[i];
+                    li = document.createElement('ul');
+                    li.innerHTML = '<a href="###" id="repo-call-'+repo.id+'">'+
+                        repo.repositoryname+'</a><br/>';
+                    li.innerHTML += '<a href="###" class="repo-opt" onclick="repository_client.search('+repo.id+')">Search</a>';
+                    li.innerHTML += '<a href="###" class="repo-opt" id="repo-logout-'+repo.id+'">Logout</a>';
+                    li.id = 'repo-'+repo.id;
+                    this.appendChild(li);
+                    var e = new YAHOO.util.Element('repo-call-'+repo.id);
+                    e.on('click', function(e){
+                        var re = /repo-call-(\d+)/i;
+                        var id = this.get('id').match(re);
+                        repository_client.req(id[1], 1, 0);
+                        });
+                    e = new YAHOO.util.Element('repo-logout-'+repo.id);
+                    e.on('click', function(e){
+                        var re = /repo-logout-(\d+)/i;
+                        var id = this.get('id').match(re);
+                        repository_client.req(id[1], 1, 1);
+                        });
+                    repo = null;
+                }
+                });
+        }
+    }
+    // public static varible
+    _client.repos = [];
+    _client.repositoryid = 0;
+    _client.datasource, 
+    _client.viewmode = 0;
+    _client.viewbar =null;
+    // public static mehtod
+    _client.postdata = function(obj) {
+        var str = '';
+        for(k in obj) {
+            if(obj[k] instanceof Array) {
+                for(i in obj[k]) {
+                    str += (encodeURIComponent(k) +'[]='+encodeURIComponent(obj[k][i]));
+                    str += '&';
+                }
+            } else {
+                str += encodeURIComponent(k) +'='+encodeURIComponent(obj[k]);
                 str += '&';
             }
-        } else {
-            str += encodeURIComponent(k) +'='+encodeURIComponent(obj[k]);
-            str += '&';
         }
+        return str;
     }
-    return str;
-}
-
-// XXX: A ugly hack to show paging for flickr
-function makepage(){
-    var str = '';
-    if(datasource.pages){
-        str += '<div id="paging">';
-        for(var i = 1; i <= datasource.pages; i++) {
-            str += '<a onclick="cr('+repositoryid+', '+i+', 0)" href="###">';
-            str += String(i);
-            str += '</a> ';
-        }
-        str += '</div>';
+    _client.loading = function(){
+        var panel = new YAHOO.util.Element('panel');
+        panel.get('element').innerHTML = '<img src="<?php echo $CFG->pixpath.'/i/loading.gif'?>" alt="loading..." />';
     }
-    return str;
-}
-
-// display a loading picture
-function loading(){
-    var panel = new YAHOO.util.Element('panel');
-    panel.get('element').innerHTML = '<img src="<?php echo $CFG->pixpath.'/i/loading.gif'?>" alt="loading..." />';
-}
-
-// name the file
-function rename(oldname, url){
-    var panel = new YAHOO.util.Element('panel');
-    var html = '<div>';
-    html += '<label for="newname">Name:</label>';
-    html += '<input type="text" id="newname" value="'+oldname+'" /><br/>';
-    html += '<input type="hidden" id="fileurl" value="'+url+'" />';
-    html += '<input type="button" onclick="download()" value="Download" />';
-    html += '<a href="###" onclick="viewfiles()">Back</a>';
-    html += '</div>';
-    panel.get('element').innerHTML = html;
-}
-function download(){
-    var title = document.getElementById('newname').value;
-    var file = document.getElementById('fileurl').value;
-    loading();
-    var trans = YAHOO.util.Connect.asyncRequest('POST', 
-        'ws.php?id='+repositoryid+'&action=download', loadfile, 
-        postdata({'file':file, 'title':title}));
-}
-// produce thumbnail view
-function viewthumb(){
-    viewbar.check(1);
-    obj = datasource.list;
-    if(!obj){
-        return;
+    _client.rename = function(oldname, url){
+        var panel = new YAHOO.util.Element('panel');
+        var html = '<div>';
+        html += '<label for="newname">Name:</label>';
+        html += '<input type="text" id="newname" value="'+oldname+'" /><br/>';
+        html += '<label for="syncfile">Sync?</label>';
+        html += '<input type="checkbox" id="syncfile" /><br/>';
+        html += '<input type="hidden" id="fileurl" value="'+url+'" />';
+        html += '<input type="button" onclick="repository_client.download()" value="Download" />';
+        html += '<a href="###" onclick="repository_client.viewfiles()">Back</a>';
+        html += '</div>';
+        panel.get('element').innerHTML = html;
     }
-    var panel = new YAHOO.util.Element('panel');
-    var str = '';
-    str += makepage();
-    for(k in obj){
-        str += '<div class="t">';
-        str += '<img title="'+obj[k].title+'" src="'+obj[k].thumbnail+'" />';
-        str += '<div style="text-align:center">';
-        str += ('<input type="radio" title="'+obj[k].title
-                +'" name="selected-files" value="'+obj[k].source
-                +'" onclick=\'rename("'+obj[k].title+'", "'
-                +obj[k].source+'")\' />');
-        str += obj[k].title+'</div>';
-        str += '</div>';
+    _client.print_login = function(){
+        var panel = new YAHOO.util.Element('panel');
+        var data = _client.datasource.l;
+        panel.get('element').innerHTML = data;
     }
-    panel.get('element').innerHTML = str;
-    viewmode = 1;
-    return str;
-}
 
-function viewfiles(){
-    if(viewmode) {
-        viewthumb();
-    } else {
-        viewlist();
-    }
-}
-// produce list view
-function viewlist(){
-    var str = '';
-    viewbar.check(0);
-    obj = datasource.list;
-    if(!obj){
-        return;
-    }
-    var panel = new YAHOO.util.Element('panel');
-    str += makepage();
-    var re = new RegExp();
-    re.compile("^[A-Za-z]+://[A-Za-z0-9-_]+\\.[A-Za-z0-9-_%&\?\/.=]+$");
-    for(k in obj){
-        str += ('<input type="radio" title="'+obj[k].title+'" name="selected-files" value="'+obj[k].source+'" onclick=\'rename("'+obj[k].title+'", "'+obj[k].source+'")\' /> ');
-        if(re.test(obj[k].source)) {
-            str += '<a class="file_name" href="'+obj[k].source+'">'+obj[k].title+'</a>';
+    _client.viewfiles = function(){
+        if(_client.viewmode) {
+            _client.viewthumb();
         } else {
-            str += '<span class="file_name" >'+obj[k].title+'</span>';
+            _client.viewlist();
         }
-        str += '<br/>';
-        str += '<label>Date: </label><span class="file_date">'+obj[k].date+'</span><br/>';
-        str += '<label>Size: </label><span class="file_size">'+obj[k].size+'</span>';
-        str += '<br/>';
     }
-    panel.get('element').innerHTML = str;
-    viewmode = 0;
-    return str;
-}
 
-// produce login html
-function print_login(){
-    var panel = new YAHOO.util.Element('panel');
-    var data = datasource.l;
-    panel.get('element').innerHTML = data;
-}
-
-var callback = {
-success: function(o) {
-    var panel = new YAHOO.util.Element('panel');
-    try {
-        var ret = YAHOO.lang.JSON.parse(o.responseText);
-    } catch(e) {
-        alert('Invalid JSON String\n'+o.responseText);
+    _client.viewthumb = function(){
+        var panel = new YAHOO.util.Element('panel');
+        _client.viewbar.check(1);
+        obj = _client.datasource.list;
+        var str = '';
+        str += _client.makepage();
+        for(k in obj){
+            str += '<div class="grid">';
+            str += '<img title="'+obj[k].title+'" src="'+obj[k].thumbnail+'" />';
+            str += '<div style="text-align:center">';
+            str += ('<input type="radio" title="'+obj[k].title
+                    +'" name="selected-files" value="'+obj[k].source
+                    +'" onclick=\'rename("'+obj[k].title+'", "'
+                    +obj[k].source+'")\' />');
+            str += obj[k].title+'</div>';
+            str += '</div>';
+        }
+        panel.get('element').innerHTML = str;
+        _client.viewmode = 1;
+        return str;
     }
-    if(ret.e){
-        panel.get('element').innerHTML = ret.e;
-        return;
+
+    _client.viewlist = function(){
+        var panel = new YAHOO.util.Element('panel');
+        var str = '';
+        _client.viewbar.check(0);
+        obj = _client.datasource.list;
+        str += _client.makepage();
+        var re = new RegExp();
+        re.compile("^[A-Za-z]+://[A-Za-z0-9-_]+\\.[A-Za-z0-9-_%&\?\/.=]+$");
+        for(k in obj){
+            str += ('<input type="radio" title="'+obj[k].title+'" name="selected-files" value="'+obj[k].source+'" onclick=\'repository_client.rename("'+obj[k].title+'", "'+obj[k].source+'")\' /> ');
+            if(re.test(obj[k].source)) {
+                str += '<a class="file_name" href="'+obj[k].source+'">'+obj[k].title+'</a>';
+            } else {
+                str += '<span class="file_name" >'+obj[k].title+'</span>';
+            }
+            str += '<br/>';
+            str += '<label>Date: </label><span class="file_date">'+obj[k].date+'</span><br/>';
+            str += '<label>Size: </label><span class="file_size">'+obj[k].size+'</span>';
+            str += '<br/>';
+        }
+        panel.get('element').innerHTML = str;
+        _client.viewmode = 0;
+        return str;
     }
-    datasource = ret;
-    if(datasource.l){
-        print_login();
-    } else if(datasource.list) {
-        if(viewmode) {
-            viewthumb();
-        } else {
-            viewlist();
+    // XXX: A ugly hack to show paging for flickr
+    _client.makepage = function(){
+        var str = '';
+        if(_client.datasource.pages){
+            str += '<div id="paging">';
+            for(var i = 1; i <= _client.datasource.pages; i++) {
+                str += '<a onclick="repository_client.req('+_client.repositoryid+', '+i+', 0)" href="###">';
+                str += String(i);
+                str += '</a> ';
+            }
+            str += '</div>';
         }
+        return str;
     }
-  }
-}
-var loadfile = {
-success: function(o) {
-    var panel = new YAHOO.util.Element('panel');
-    try {
-        var ret = YAHOO.lang.JSON.parse(o.responseText);
-    } catch(e) {
-        alert('Invalid JSON String\n'+o.responseText);
+    _client.download = function(){
+        var title = document.getElementById('newname').value;
+        var file = document.getElementById('fileurl').value;
+        _client.loading();
+        var trans = YAHOO.util.Connect.asyncRequest('POST', 
+            'ws.php?id='+_client.repositoryid+'&action=download', _client.dlfile, 
+            _client.postdata({'file':file, 'title':title}));
     }
-    if(ret.e){
-        panel.get('element').innerHTML = ret.e;
-        return;
+    _client.login = function(){
+        YAHOO.util.Connect.setForm('moodle-repo-login');
+        _client.loading();
+        var trans = YAHOO.util.Connect.asyncRequest('POST', 'ws.php', _client.callback);
     }
-    var panel = new YAHOO.util.Element('panel');
-    var html = '<h1>Download Successfully!</h1>';
-    html += '<a href="###" onclick="viewfiles()">Back</a>';
-    panel.get('element').innerHTML = html;
+    _client.callback = {
+    success: function(o) {
+        var panel = new YAHOO.util.Element('panel');
+        try {
+            var ret = YAHOO.lang.JSON.parse(o.responseText);
+        } catch(e) {
+            alert('Invalid JSON String\n'+o.responseText);
+        }
+        if(ret.e){
+            panel.get('element').innerHTML = ret.e;
+            return;
+        }
+        _client.datasource = ret;
+        if(_client.datasource.l){
+            _client.print_login();
+        } else if(_client.datasource.list) {
+            if(_client.viewmode) {
+                _client.viewthumb();
+            } else {
+                _client.viewlist();
+            }
+        }
+      }
     }
-}
-
-function cr(id, path, reset){
-    viewbar.set('disabled', false);
-    if(id != 0) {
-        repositoryid = id;
+    _client.dlfile = {
+    success: function(o) {
+        var panel = new YAHOO.util.Element('panel');
+        try {
+            var ret = YAHOO.lang.JSON.parse(o.responseText);
+        } catch(e) {
+            alert('Invalid JSON String\n'+o.responseText);
+        }
+        if(ret.e){
+            panel.get('element').innerHTML = ret.e;
+            return;
+        }
+        var html = '<h1>Download Successfully!</h1>';
+        html += '<a href="###" onclick="repository_client.viewfiles()">Back</a>';
+        panel.get('element').innerHTML = html;
+      }
     }
-    loading();
-    var trans = YAHOO.util.Connect.asyncRequest('GET', 'ws.php?id='+id+'&p='+path+'&reset='+reset, callback);
-}
-function dosearch(id){
-    var data = window.prompt("What are you searching for?");
-    if(data == null || data == '') {
-        alert('nothing entered');
-        return;
+    // request file list or login
+    _client.req = function(id, path, reset) {
+        _client.viewbar.set('disabled', false);
+        _client.loading();
+        _client.repositoryid = id;
+        var trans = YAHOO.util.Connect.asyncRequest('GET', 'ws.php?id='+id+'&p='+path+'&reset='+reset, _client.callback);
     }
-    viewbar.set('disabled', false);
-    loading();
-    var trans = YAHOO.util.Connect.asyncRequest('GET', 'ws.php?id='+id+'&s='+data, callback);
+    _client.search = function(id){
+        var data = window.prompt("What are you searching for?");
+        if(data == null || data == '') {
+            alert('nothing entered');
+            return;
+        }
+        _client.viewbar.set('disabled', false);
+        _client.loading();
+        var trans = YAHOO.util.Connect.asyncRequest('GET', 'ws.php?id='+id+'&s='+data, _client.callback);
+    }
+    return _client;
+})();
+<?php
+$repos = repository_instances();
+foreach($repos as $repo) {
+    echo 'repository_client.repos.push('.json_encode($repo).');'."\n";
+    echo "\n";
 }
-
-function dologin(){
-    YAHOO.util.Connect.setForm('moodle-repo-login');
-    loading();
-    var trans = YAHOO.util.Connect.asyncRequest('POST', 'ws.php', callback);
+?>
+function openpicker(){
+    var r = new repository_client();
+    r.create_picker();
 }
 </script>
 </body>
diff --git a/repository/boxnet/repository.class.php b/repository/boxnet/repository.class.php
index 03bc50dcb4..7b967ba808 100755
--- a/repository/boxnet/repository.class.php
+++ b/repository/boxnet/repository.class.php
@@ -114,7 +114,7 @@ class repository_boxnet extends repository{
                 $str .= '<br/>';
                 $str .= '<label for="box_password">Password: <label><br/>';
                 $str .= '<input type="password" id="box_password" name="password" /><br/>';
-                $str .= '<input type="button" onclick="dologin()" value="Go" />';
+                $str .= '<input type="button" onclick="repository_client.login()" value="Go" />';
                 $str .= '</form>';
                 if($this->options['ajax']){
                     $ret = array();
diff --git a/repository/flickr/repository.class.php b/repository/flickr/repository.class.php
index d855e29211..15b1ab7da3 100755
--- a/repository/flickr/repository.class.php
+++ b/repository/flickr/repository.class.php
@@ -68,7 +68,7 @@ class repository_flickr extends repository{
 <input type='text' name='flickrmail' id='account' />
 <input type='hidden' name='id' value='$this->repositoryid' /><br/>
 <input type='checkbox' name='remember' id="keepid" value='true' /> <label for="keepid">Remember? </label>
-<p><input type='button' onclick="dologin()" value="Go" /></p>
+<p><input type='button' onclick="repository_client.login()" value="Go" /></p>
 </form>
 EOD;
             if($ajax){
-- 
2.39.5