Allow C-c to interrupt search highlighting

content/events.js

@@ -537,10 +537,7 @@ liberator.Events = function () //{{{
     function waitForPageLoaded()
     {
         liberator.dump("start waiting in loaded state: " + liberator.buffer.loaded + "\n");
-        var mainThread = Components.classes["@mozilla.org/thread-manager;1"]
-                                   .getService(Components.interfaces.nsIThreadManager).mainThread;
-        while (mainThread.hasPendingEvents()) // clear queue
-            mainThread.processNextEvent(true);
+        liberator.threadyield(true); // clear queue
 
         if (liberator.buffer.loaded == 1)
             return true;
@@ -549,7 +546,7 @@ liberator.Events = function () //{{{
         var then = new Date().getTime();
         for (let now = then; now - then < ms; now = new Date().getTime())
         {
-            mainThread.processNextEvent(true);
+            liberator.threadyield();
             if ((now - then) % 1000 < 10)
                 liberator.dump("waited: " + (now - then) + " ms\n");
 
@@ -1196,7 +1193,6 @@ liberator.Events = function () //{{{
 
             if (liberator.modes.isReplaying)
             {
-                // XXX: Prevents using <C-c> in a macro.
                 if (key == "<C-c>" && !event.isMacro)
                 {
                     liberator.modes.isReplaying = false;
@@ -1207,6 +1203,9 @@ liberator.Events = function () //{{{
                 }
             }
 
+            if (key == "<C-c>")
+                liberator.interrupted = true;
+
             var stop = true; // set to false if we should NOT consume this event but let Firefox handle it
 
             var win = document.commandDispatcher.focusedWindow;

content/find.js

@@ -195,6 +195,8 @@ liberator.Search = function () //{{{
             this.endPt.setStart(body, count);
             this.endPt.setEnd(body, count);
 
+            liberator.interrupted = false;
+            let n = 0;
             for (let retRange in this.search(aWord, caseSensitive))
             {
                 // Highlight
@@ -203,6 +205,10 @@ liberator.Search = function () //{{{
                 this.startPt = node.ownerDocument.createRange();
                 this.startPt.setStart(node, node.childNodes.length);
                 this.startPt.setEnd(node, node.childNodes.length);
+                if (n++ % 20 == 0)
+                    liberator.threadyield();
+                if (liberator.interrupted)
+                    break;
             }
         },
 

content/hints.js

@@ -647,10 +647,7 @@ liberator.Hints = function () //{{{
             generate(win);
 
             // get all keys from the input queue
-            var mt = Components.classes["@mozilla.org/thread-manager;1"]
-                               .getService().mainThread;
-            while (mt.hasPendingEvents())
-                mt.processNextEvent(true);
+            liberator.threadyield(true);
 
             canUpdate = true;
             showHints();

content/liberator.js

@@ -1237,6 +1237,14 @@ const liberator = (function () //{{{
             return true;
         },
 
+        threadyield: function (flush)
+        {
+            let mainThread = threadManager.mainThread;
+            do
+                mainThread.processNextEvent(true);
+            while (flush && mainThread.hasPendingEvents());
+        },
+
         get windows()
         {
             var wm = Components.classes["@mozilla.org/appshell/window-mediator;1"]