paginating through search results

git-svn-id: http://svn.klever.net/kin/fireflix/trunk@179 fe716a7a-6dde-0310-88d9-d003556173a8

4 files changed, 75 insertions, 5 deletions

diff --git a/content/fireflix-panel.xul b/content/fireflix-panel.xul
index 398dd78..bf6df73 100644
--- a/content/fireflix-panel.xul
+++ b/content/fireflix-panel.xul
@@ -48,6 +48,12 @@
   oncommand="fireflix.foundphotos.search_photos()"/>
   <command id="cmd_search_open" label="&panel.search.cmd_search_open.label;"
   oncommand="fireflix.foundphotos.on_cmd_open(event)" />
+  <command id="cmd_search_prev_page"
+  label="&panel.search.cmd_search_prev_page.label;"
+  oncommand="fireflix.foundphotos.on_cmd_prev(event)" disabled="true"/>
+  <command id="cmd_search_next_page"
+  label="&panel.search.cmd_search_next_page.label;"
+  oncommand="fireflix.foundphotos.on_cmd_next(event)" disabled="true"/>
  </commandset>
 
  <commandset id="cmdset_sets">
@@ -130,6 +136,13 @@
         <button command="cmd_search"/>
        </hbox>
       </groupbox>
+      <hbox>
+       <button command="cmd_search_prev_page"/>
+       <spacer flex="1"/>
+       <label id="search_page" hidden="true"/>
+       <spacer flex="1"/>
+       <button command="cmd_search_next_page"/>
+      </hbox>
       <tree id="searchresults" rows="2" flex="1"
       onselect="fireflix.foundphotos.on_select()"
       ondblclick="fireflix.foundphotos.on_cmd_open(event)"
diff --git a/content/fireflix.css b/content/fireflix.css
index 71080d1..9e7bf6b 100644
--- a/content/fireflix.css
+++ b/content/fireflix.css
@@ -87,3 +87,13 @@ div#searchresult_description {
  border: dotted 1px gray;
  background: white;
 }
+
+label#search_page {
+ font-weight: bold;
+ background: white; color: #404040;
+ border-color: #c0c0c0 #404040 #404040 #c0c0c0;
+ border-style: solid;
+ border-width: 1px;
+ -moz-border-radius: 1em;
+ padding: 0.5ex 1ex;
+}
diff --git a/content/fireflix.js b/content/fireflix.js
index e144aae..92c42f4 100644
--- a/content/fireflix.js
+++ b/content/fireflix.js
@@ -692,7 +692,8 @@ var fireflix = {
    pull_elements(this,document,[
     'search_for','search_tags','search_mine',
     'searchresult_props','search_photo',
-    'searchresult_title','searchresult_description'
+    'searchresult_title','searchresult_description',
+    'search_page','cmd_search_prev_page','cmd_search_next_page'
    ]);
    document.getElementById('searchresults').view = this;
   },
@@ -729,6 +730,10 @@ var fireflix = {
    this.rowCount = this.photos.length;
    this.tree.endUpdateBatch();
   },
+  paging: {
+   pars: null,
+   page: null, pages: null, perpage: null, total: null
+  },
   search_photos: function() {
    var pars = {
     method: 'flickr.photos.search',
@@ -742,21 +747,56 @@ var fireflix = {
    }else{
     pars.text=this.search_for.value;
    }
+   this.paging.pars = new Object();
+   this.paging.page = null; this.paging.pages = null;
+   this.paging.perpage = null; this.paging.total = null;
+   for(var p in pars) this.paging.pars[p] = pars[p];
+   this.perform_search(pars);
+  },
+  perform_search: function(p) {
    var _this = this;
-   this.fireflix.flickr.api_call( pars,
+   this.fireflix.flickr.api_call( p,
     function(xr) {
      var x = xr.responseXML;
-     var xp = x.evaluate(
-      '/rsp/photos/photo', x, null,
-      XPathResult.ORDERED_NODE_ITERATOR_TYPE, null );
+     var xp = xp_nodes('/rsp/photos/photo',x);
      _this.importXPR(xp);
      _this.tree.ensureRowIsVisible(0);
+     xp = xp_node('/rsp/photos',x);
+     _this.paging.page = parseInt(xp.getAttribute('page'));
+     _this.paging.pages = parseInt(xp.getAttribute('pages'));
+     _this.paging.perpage = parseInt(xp.getAttribute('perpage'));
+     _this.paging.total = parseInt(xp.getAttribute('total'));
+     _this.update_paging();
      _this.on_select();
     }, function(x,s,c,m) {
      _this.fireflix.flickr_failure(x,s,c,m);
     }
    );
   },
+  on_cmd_prev: function(ev) {
+   var pars = new Object();
+   for(var p in this.paging.pars) pars[p] = this.paging.pars[p];
+   pars.page=this.paging.page-1; pars.per_page=this.paging.perpage;
+   this.perform_search(pars);
+  },
+  on_cmd_next: function(ev) {
+   var pars = new Object();
+   for(var p in this.paging.pars) pars[p] = this.paging.pars[p];
+   pars.page=this.paging.page+1; pars.per_page=this.paging.perpage;
+   this.perform_search(pars);
+  },
+  update_paging: function() {
+   if(! (this.paging.pars && this.paging.page && this.paging.pages) ) {
+    this.search_page.value=''; this.search_page.hidden = true;
+    this.cmd_search_prev_page.setAttribute('disabled','true');
+    this.cmd_search_next_page.setAttribute('disabled','true');
+   }else{
+    this.search_page.value=this.fireflix.loc_strings.getFormattedString('search_page',[this.paging.page,this.paging.pages]);
+    this.search_page.hidden=false;
+    this.cmd_search_prev_page.setAttribute('disabled',(this.paging.page>1)?'false':'true');
+    this.cmd_search_next_page.setAttribute('disabled',(this.paging.page<this.paging.pages)?'false':'true');
+   }
+  },
   render_description_frame: function(content) {
    if(!content) {
     this.searchresult_description.innerHTML = '';
diff --git a/content/util.js b/content/util.js
index c4af09e..ccc61cf 100644
--- a/content/util.js
+++ b/content/util.js
@@ -58,6 +58,13 @@ function xp_node(xp,x) {
   xp, x, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null );
  return rv.singleNodeValue;
 }
+/*
+ * extract xpath-specified ordered set of nodes
+ */
+function xp_nodes(xp,x) {
+ return x.evaluate(
+  xp, x, null, XPathResult.ORDERED_NODE_ITERATOR_TYPE, null);
+}
 
 /*
  * pull in elements into documents as a member variables