[REF] web_editor: code refactoring and simplification

* Remove dead code + optimization
* Use Dialog API from web module
* Reorganize files
* Correct buggy $() function for snippet option class
* Add comments

* Fix the snippet parent navigation :

If a page contained a three level snippet structure (i.e A contains
B contains C), when editing the following bug occured :

If B or C was selected first, parenting buttons were correctly set.
But if selecting A then C, clicking on the parent lead to going back
on A instead of going on B.

* Fix snippet thumbnail layout
* Better isolate ui css from themes
* MediaDialog image list : prevent displaying empty attachments
* ...

2 files changed, 5 insertions, 5 deletions

diff --git a/addons/web/static/src/js/framework/ajax.js b/addons/web/static/src/js/framework/ajax.js
index 50e0e2f0c59..09bcc40d918 100644
--- a/addons/web/static/src/js/framework/ajax.js
+++ b/addons/web/static/src/js/framework/ajax.js
@@ -12,7 +12,7 @@ function genericJsonRpc (fct_name, params, fct) {
         params: params,
         id: Math.floor(Math.random() * 1000 * 1000 * 1000)
     };
-    var xhr = fct(data);    
+    var xhr = fct(data);
     var result = xhr.pipe(function(result) {
         core.bus.trigger('rpc:result', data, result);
         if (result.error !== undefined) {
@@ -119,7 +119,7 @@ function jsonpRpc(url, fct_name, params, settings) {
     });
 }
 
-// helper function to make a rpc with a function name hardcoded to 'call' 
+// helper function to make a rpc with a function name hardcoded to 'call'
 function rpc(url, params, settings) {
     return jsonRpc(url, 'call', params, settings);
 }
diff --git a/addons/web/static/src/js/framework/dialog.js b/addons/web/static/src/js/framework/dialog.js
index f401cf78591..bf590f9a582 100644
--- a/addons/web/static/src/js/framework/dialog.js
+++ b/addons/web/static/src/js/framework/dialog.js
@@ -60,7 +60,7 @@ var Dialog = Widget.extend({
         this.$footer = this.$modal.find(".modal-footer");
 
         this.set_buttons(options.buttons);
-        
+
         this.$modal.on('hidden.bs.modal', _.bind(this.destroy, this));
     },
 
@@ -94,7 +94,7 @@ var Dialog = Widget.extend({
             self.$footer.append($b);
         });
     },
-    
+
     set_title: function(title, subtitle) {
         this.title = title || "";
         if (subtitle !== undefined) {
@@ -122,7 +122,7 @@ var Dialog = Widget.extend({
             self.$modal.modal('show');
             self._opened.resolve();
         });
-        
+
         return self;
     },