From cc8be4269068a6dac17a2b163308152a0f6a3938 Mon Sep 17 00:00:00 2001
From: Mike Frysinger <vapier@gentoo.org>
Date: Tue, 29 Jan 2013 19:15:12 -0500
Subject: [PATCH] allow people to delete *old* history rather than *new*
 history

---
 _locales/en/messages.json  |  1 +
 javascript/clearhistory.js | 12 ++++++++++--
 javascript/options.js      |  3 +++
 views/options.html         |  5 +++++
 4 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/_locales/en/messages.json b/_locales/en/messages.json
index 82ff685..e85b3a6 100644
--- a/_locales/en/messages.json
+++ b/_locales/en/messages.json
@@ -6,6 +6,7 @@
   "optionsTitle": {"message": "Options for Clear History [Advance Fork]"},
   "optionsHeader": {"message": "Clear History [Advance Fork]"},
   "optionsTimeFor": {"message": "Delete history for:"},
+  "optionsTimeStart": {"message": "Clear entries newer than the selected time (otherwise, entries older than the selection will be cleared)"},
   "optionsTime": {
     "message": "Last $num$ $units$",
     "placeholders": {
diff --git a/javascript/clearhistory.js b/javascript/clearhistory.js
index 3766f6b..b2d2714 100644
--- a/javascript/clearhistory.js
+++ b/javascript/clearhistory.js
@@ -72,10 +72,18 @@ function clearHistory() {
     chrome.history.deleteAll(didClearHistory);
   } else {
     // Create the range
+    var timeStart = localStorage['timeStart'] === CONSTANTS.YES;
     var now = (new Date).getTime();
+    var startTime = (now - time * 60 * 60 * 1000);  // time from hrs to ms
+    if (timeStart) {
+      var endTime = now;
+    } else {
+      var endTime = startTime;
+      startTime = 0;
+    }
     var range = {
-      startTime: (now - time * 60 * 60 * 1000),  // time from hrs to ms
-      endTime: now
+      startTime: startTime,
+      endTime: endTime
     };
     // Delete history in the range
     chrome.history.deleteRange(range, didClearHistory);
diff --git a/javascript/options.js b/javascript/options.js
index 62721cb..17139d5 100644
--- a/javascript/options.js
+++ b/javascript/options.js
@@ -30,6 +30,7 @@ function init() {
   $('#optionsHeader')[0].innerText = chrome.i18n.getMessage('optionsHeader');
   $('#optionsPrompt')[0].innerText = chrome.i18n.getMessage('optionsPrompt');
   $('#optionsTimeFor')[0].innerText = chrome.i18n.getMessage('optionsTimeFor');
+  $('#optionsTimeStart')[0].innerText = chrome.i18n.getMessage('optionsTimeStart');
   $('#optionsCookies')[0].innerText = chrome.i18n.getMessage('optionsCookies');
   $('#optionsSaved > b')[0].innerText = chrome.i18n.getMessage('optionsSaved');
 
@@ -45,12 +46,14 @@ function init() {
   });
 
   // Load or set localStorage data
+  var timeStart = localStorage['timeStart'] || CONSTANTS.YES;
   var time = ~~(localStorage['time']) ||
              (localStorage['time'] = CONSTANTS.DEFAULT_TIME);
   var showPrompt = localStorage['prompt'] ||
                    (localStorage['prompt'] = CONSTANTS.YES);
   var clearCookies = localStorage['cookies'] || CONSTANTS.NO;
 
+  $('input[name=timeStart]')[0].checked = (timeStart === CONSTANTS.YES);
   $('input[name=time][value="' + time + '"]')[0].checked = true;
   $('input[name=prompt]')[0].checked = (showPrompt === CONSTANTS.YES);
   $('input[name=cookies]')[0].checked = (clearCookies === CONSTANTS.YES);
diff --git a/views/options.html b/views/options.html
index a555e8f..9b909eb 100644
--- a/views/options.html
+++ b/views/options.html
@@ -24,6 +24,11 @@
         <div id="opt-time">
           <div class="opt-name">
             <b id="optionsTimeFor"></b>
+            <br><br>
+            <div class="opt-timeStart">
+              <input name="timeStart" class="opt-chk" type="checkbox" checked>
+              <div class="opt-label" id="optionsTimeStart"></div>
+            </div>
           </div>
           <div class="opt-value">
             <div class="opt-option">   <!-- 1 hour -->
-- 
2.39.5