Scroll to bottom when the form mode changes

boards/static/js/form.js

@@ -1,43 +1,45 b''
 var isCompact = true;
 
 $('input[name=image]').wrap($('<div class="file_wrap"></div>'));
 
 $('body').on('change', 'input[name=image]', function(event) {
     var file = event.target.files[0];
 
     if(file.type.match('image.*')) {
         var fileReader = new FileReader();
 
         fileReader.addEventListener("load", function(event) {
             var wrapper = $('.file_wrap');
 
             wrapper.find('.file-thumb').remove();
             wrapper.append(
                 $('<div class="file-thumb" style="background-image: url('+event.target.result+')"></div>')
             );
         });
 
         fileReader.readAsDataURL(file);
     }
 });
 
 var compactForm = $('.swappable-form-compact');
 var fullForm = $('.swappable-form-full');
 
 function swapForm() {
     compactForm.toggle();
     fullForm.toggle();
 
     if (isCompact) {
         var oldText = compactForm.find('textarea')[0].value;
         fullForm.find('textarea')[0].value = oldText;
     } else {
         var oldText = fullForm.find('textarea')[0].value;
         compactForm.find('textarea')[0].value = oldText;
     }
     isCompact = !isCompact;
+    
+    scrollToBottom();
 }
 
 if (compactForm.length > 0) {
     fullForm.toggle();
-}
  No newline at end of file
+}

boards/static/js/thread.js

@@ -1,54 +1,59 b''
 /*
  @licstart  The following is the entire license notice for the
  JavaScript code in this page.
 
 
  Copyright (C) 2013  neko259
 
  The JavaScript code in this page is free software: you can
  redistribute it and/or modify it under the terms of the GNU
  General Public License (GNU GPL) as published by the Free Software
  Foundation, either version 3 of the License, or (at your option)
  any later version.  The code is distributed WITHOUT ANY WARRANTY;
  without even the implied warranty of MERCHANTABILITY or FITNESS
  FOR A PARTICULAR PURPOSE.  See the GNU GPL for more details.
 
  As additional permission under GNU GPL version 3 section 7, you
  may distribute non-source (e.g., minimized or compacted) forms of
  that code without the copy of the GNU GPL normally required by
  section 4, provided you include this license notice and a URL
  through which recipients can access the Corresponding Source.
 
  @licend  The above is the entire license notice
  for the JavaScript code in this page.
  */
 
 function moveCaretToEnd(el) {
         if (typeof el.selectionStart == "number") {
             el.selectionStart = el.selectionEnd = el.value.length;
         } else if (typeof el.createTextRange != "undefined") {
             el.focus();
             var range = el.createTextRange();
             range.collapse(false);
             range.select();
         }
 }
 
 function addQuickReply(postId) {
     var textToAdd = '>>' + postId + '\n\n';
     var selection = window.getSelection().toString();
     if (selection.length > 0) {
         textToAdd += '> ' + selection + '\n\n';
     }
 
     var textAreaId = 'textarea';
     $(textAreaId).val($(textAreaId).val()+ textToAdd);
 
     var textarea = document.getElementsByTagName('textarea')[0];
     $(textAreaId).focus();
     moveCaretToEnd(textarea);
 
     $("html, body").animate({ scrollTop: $(textAreaId).offset().top }, "slow");
 }
 
+function scrollToBottom() {
+    var $target = $('html,body');
+    $target.animate({scrollTop: $target.height()}, 1000);
+}
+
 $('#full-form').toggle();

boards/static/js/thread_update.js

@@ -1,265 +1,264 b''
 /*
  @licstart  The following is the entire license notice for the
  JavaScript code in this page.
 
 
  Copyright (C) 2013  neko259
 
  The JavaScript code in this page is free software: you can
  redistribute it and/or modify it under the terms of the GNU
  General Public License (GNU GPL) as published by the Free Software
  Foundation, either version 3 of the License, or (at your option)
  any later version.  The code is distributed WITHOUT ANY WARRANTY;
  without even the implied warranty of MERCHANTABILITY or FITNESS
  FOR A PARTICULAR PURPOSE.  See the GNU GPL for more details.
 
  As additional permission under GNU GPL version 3 section 7, you
  may distribute non-source (e.g., minimized or compacted) forms of
  that code without the copy of the GNU GPL normally required by
  section 4, provided you include this license notice and a URL
  through which recipients can access the Corresponding Source.
 
  @licend  The above is the entire license notice
  for the JavaScript code in this page.
  */
 
 var THREAD_UPDATE_DELAY = 10000;
 
 var loading = false;
 var lastUpdateTime = null;
 var unreadPosts = 0
 
 function blink(node) {
     var blinkCount = 2;
 
     var nodeToAnimate = node;
     for (var i = 0; i < blinkCount; i++) {
         nodeToAnimate = nodeToAnimate.fadeTo('fast', 0.5).fadeTo('fast', 1.0);
     }
 }
 
 function updateThread() {
     if (loading) {
         return;
     }
 
     loading = true;
 
     var threadPosts = $('div.thread').children('.post');
 
     var lastPost = threadPosts.last();
     var threadId = threadPosts.first().attr('id');
 
     var diffUrl = '/api/diff_thread/' + threadId + '/' + lastUpdateTime + '/';
     $.getJSON(diffUrl)
         .success(function(data) {
             var bottom = isPageBottom();
 
             var lastUpdate = '';
 
             var addedPosts = data.added;
             for (var i = 0; i < addedPosts.length; i++) {
                 var postText = addedPosts[i];
 
                 var post = $(postText);
 
                 if (lastUpdate === '') {
                     lastUpdate = post.find('.pub_time').text();
                 }
 
                 post.appendTo(lastPost.parent());
                 addRefLinkPreview(post[0]);
 
                 lastPost = post;
                 blink(post);
             }
 
             var updatedPosts = data.updated;
             for (var i = 0; i < updatedPosts.length; i++) {
                 var postText = updatedPosts[i];
 
                 var post = $(postText);
 
                 if (lastUpdate === '') {
                     lastUpdate = post.find('.pub_time').text();
                 }
 
                 var postId = post.attr('id');
 
                 var oldPost = $('div.thread').children('.post[id=' + postId + ']');
                 
                 oldPost.replaceWith(post);
                 addRefLinkPreview(post[0]);
 
                 blink(post);
             }
 
             // TODO Process deleted posts
 
             lastUpdateTime = data.last_update;
             loading = false;
 
             if (bottom) {
-                var $target = $('html,body');
-                $target.animate({scrollTop: $target.height()}, 1000);
+                scrollToBottom();
             }
 
             var hasPostChanges = (updatedPosts.length > 0)
                 || (addedPosts.length > 0);
             if (hasPostChanges) {
                 updateMetadataPanel(lastUpdate);
             }
 
             updateBumplimitProgress(data.added.length);
 
             if (data.added.length + data.updated.length > 0) {
                 showNewPostsTitle(data.added.length);
             }
         })
         .error(function(data) {
             // TODO Show error message that server is unavailable?
 
             loading = false;
         });
 }
 
 function isPageBottom() {
     var scroll = $(window).scrollTop() / ($(document).height()
         - $(window).height())
 
     return scroll == 1
 }
 
 function initAutoupdate() {
     loading = false;
 
     lastUpdateTime = $('.metapanel').attr('data-last-update');
 
     setInterval(updateThread, THREAD_UPDATE_DELAY);
 }
 
 function getReplyCount() {
     return $('.thread').children('.post').length
 }
 
 function getImageCount() {
     return $('.thread').find('img').length
 }
 
 function updateMetadataPanel(lastUpdate) {
     var replyCountField = $('#reply-count');
     var imageCountField = $('#image-count');
 
     replyCountField.text(getReplyCount());
     imageCountField.text(getImageCount());
 
     if (lastUpdate !== '') {
         var lastUpdateField = $('#last-update');
         lastUpdateField.text(lastUpdate);
         blink(lastUpdateField);
     }
 
     blink(replyCountField);
     blink(imageCountField);
 }
 
 /**
  * Update bumplimit progress bar
  */
 function updateBumplimitProgress(postDelta) {
     var progressBar = $('#bumplimit_progress');
     if (progressBar) {
         var postsToLimitElement = $('#left_to_limit');
 
         var oldPostsToLimit = parseInt(postsToLimitElement.text());
         var postCount = getReplyCount();
         var bumplimit = postCount - postDelta + oldPostsToLimit;
 
         var newPostsToLimit = bumplimit - postCount;
         if (newPostsToLimit <= 0) {
             $('.bar-bg').remove();
             $('.thread').children('.post').addClass('dead_post');
         } else {
             postsToLimitElement.text(newPostsToLimit);
             progressBar.width((100 - postCount / bumplimit * 100.0) + '%');
         }
     }
 }
 
 var documentOriginalTitle = '';
 /**
  * Show 'new posts' text in the title if the document is not visible to a user
  */
 function showNewPostsTitle(newPostCount) {
     if (document.hidden) {
         if (documentOriginalTitle === '') {
             documentOriginalTitle = document.title;
         }
         unreadPosts = unreadPosts + newPostCount;
         document.title = '[' + unreadPosts + '] ' + documentOriginalTitle;
 
         document.addEventListener('visibilitychange', function() {
             if (documentOriginalTitle !== '') {
                 document.title = documentOriginalTitle;
                 documentOriginalTitle = '';
                 unreadPosts = 0;
             }
 
             document.removeEventListener('visibilitychange', null);
         });
     }
 }
 
 /**
  * Clear all entered values in the form fields
  */
 function resetForm(form) {
     form.find('input:text, input:password, input:file, select, textarea').val('');
     form.find('input:radio, input:checkbox')
              .removeAttr('checked').removeAttr('selected');
     $('.file_wrap').find('.file-thumb').remove();
 }
 
 /**
  * When the form is posted, this method will be run as a callback
  */
 function updateOnPost(response, statusText, xhr, form) {
     var json = $.parseJSON(response);
     var status = json.status;
 
     form.children('.form-errors').remove();
 
     if (status === 'ok') {
         resetForm(form);
         updateThread();
     } else {
         var errors = json.errors;
         for (var i = 0; i < errors.length; i++) {
             var fieldErrors = errors[i];
 
             var error = fieldErrors.errors;
 
             var errorList = $('<div class="form-errors">' + error
                     + '<div>');
             errorList.appendTo(form);
         }
     }
 }
 
 $(document).ready(function(){
     initAutoupdate();
 
     // Post form data over AJAX
     var threadId = $('div.thread').children('.post').first().attr('id');;
 
     var form = $('#form');
 
     var options = {
         success: updateOnPost,
         url: '/api/add_post/' + threadId + '/'
     };
 
     form.ajaxForm(options);
 
     resetForm(form);
 });