add file previews on hover

After typing in your search term, the panel of results appears.
This panel now shows previews of the result in the background when you
hover over each result.

Author: ahuff44

search_in_project.py

@@ -71,14 +71,24 @@ def perform_search(self, text):
             if self.results:
                 self.results = [[result[0].replace(self.common_path.replace('\"', ''), ''), result[1][:self.MAX_RESULT_LINE_LENGTH]] for result in self.results]
                 self.results.append("``` List results in view ```")
-                self.window.show_quick_panel(self.results, self.goto_result)
+                flags = 0
+                self.window.show_quick_panel(
+                    self.results,
+                    self.goto_result,
+                    flags,
+                    0,
+                    self.on_highlighted)
             else:
                 self.results = []
                 sublime.message_dialog('No results')
         except Exception as e:
             self.results = []
             sublime.error_message("%s running search engine %s:"%(e.__class__.__name__,self.engine_name) + "\n" + str(e))
 
+    def on_highlighted(self, file_no):
+        if file_no != -1 and file_no != len(self.results) - 1: # last result is "list in view"
+            file_name_and_col = self.common_path.replace('\"', '') + self.results[file_no][0]
+            view = self.window.open_file(file_name_and_col, sublime.ENCODED_POSITION | sublime.TRANSIENT)
 
     def goto_result(self, file_no):
         if file_no != -1: