808 lines
22 KiB
JavaScript
808 lines
22 KiB
JavaScript
/**
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* This code is mostly from the old Etherpad. Please help us to comment this code.
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* This helps other people to understand this code better and helps them to improve it.
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* TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
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*/
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/**
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* Copyright 2009 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS-IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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var myUserInfo = {};
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var colorPickerOpen = false;
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var colorPickerSetup = false;
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var previousColorId = 0;
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var paduserlist = (function()
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{
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var rowManager = (function()
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{
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// The row manager handles rendering rows of the user list and animating
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// their insertion, removal, and reordering. It manipulates TD height
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// and TD opacity.
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function nextRowId()
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{
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return "usertr" + (nextRowId.counter++);
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}
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nextRowId.counter = 1;
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// objects are shared; fields are "domId","data","animationStep"
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var rowsFadingOut = []; // unordered set
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var rowsFadingIn = []; // unordered set
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var rowsPresent = []; // in order
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var ANIMATION_START = -12; // just starting to fade in
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var ANIMATION_END = 12; // just finishing fading out
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function getAnimationHeight(step, power)
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{
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var a = Math.abs(step / 12);
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if (power == 2) a = a * a;
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else if (power == 3) a = a * a * a;
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else if (power == 4) a = a * a * a * a;
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else if (power >= 5) a = a * a * a * a * a;
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return Math.round(26 * (1 - a));
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}
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var OPACITY_STEPS = 6;
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var ANIMATION_STEP_TIME = 20;
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var LOWER_FRAMERATE_FACTOR = 2;
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var scheduleAnimation = padutils.makeAnimationScheduler(animateStep, ANIMATION_STEP_TIME, LOWER_FRAMERATE_FACTOR).scheduleAnimation;
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var NUMCOLS = 4;
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// we do lots of manipulation of table rows and stuff that JQuery makes ok, despite
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// IE's poor handling when manipulating the DOM directly.
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function getEmptyRowHtml(height)
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{
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return '<td colspan="' + NUMCOLS + '" style="border:0;height:' + height + 'px"><!-- --></td>';
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}
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function isNameEditable(data)
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{
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return (!data.name) && (data.status != 'Disconnected');
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}
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function replaceUserRowContents(tr, height, data)
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{
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var tds = getUserRowHtml(height, data).match(/<td.*?<\/td>/gi);
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if (isNameEditable(data) && tr.find("td.usertdname input:enabled").length > 0)
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{
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// preserve input field node
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for (var i = 0; i < tds.length; i++)
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{
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var oldTd = $(tr.find("td").get(i));
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if (!oldTd.hasClass('usertdname'))
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{
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oldTd.replaceWith(tds[i]);
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}
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}
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}
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else
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{
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tr.html(tds.join(''));
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}
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return tr;
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}
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function getUserRowHtml(height, data)
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{
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var nameHtml;
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var isGuest = (data.id.charAt(0) != 'p');
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if (data.name)
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{
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nameHtml = padutils.escapeHtml(data.name);
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if (isGuest && pad.getIsProPad())
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{
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nameHtml += ' (Guest)';
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}
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}
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else
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{
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nameHtml = '<input type="text" class="editempty newinput" value="unnamed" ' + (isNameEditable(data) ? '' : 'disabled="disabled" ') + '/>';
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}
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return ['<td style="height:', height, 'px" class="usertdswatch"><div class="swatch" style="background:' + data.color + '"> </div></td>', '<td style="height:', height, 'px" class="usertdname">', nameHtml, '</td>', '<td style="height:', height, 'px" class="usertdstatus">', padutils.escapeHtml(data.status), '</td>', '<td style="height:', height, 'px" class="activity">', padutils.escapeHtml(data.activity), '</td>'].join('');
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}
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function getRowHtml(id, innerHtml)
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{
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return '<tr id="' + id + '">' + innerHtml + '</tr>';
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}
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function rowNode(row)
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{
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return $("#" + row.domId);
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}
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function handleRowData(row)
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{
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if (row.data && row.data.status == 'Disconnected')
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{
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row.opacity = 0.5;
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}
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else
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{
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delete row.opacity;
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}
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}
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function handleRowNode(tr, data)
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{
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if (data.titleText)
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{
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var titleText = data.titleText;
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window.setTimeout(function()
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{
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/* tr.attr('title', titleText)*/
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}, 0);
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}
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else
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{
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tr.removeAttr('title');
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}
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}
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function handleOtherUserInputs()
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{
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// handle 'INPUT' elements for naming other unnamed users
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$("#otheruserstable input.newinput").each(function()
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{
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var input = $(this);
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var tr = input.closest("tr");
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if (tr.length > 0)
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{
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var index = tr.parent().children().index(tr);
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if (index >= 0)
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{
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var userId = rowsPresent[index].data.id;
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rowManagerMakeNameEditor($(this), userId);
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}
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}
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}).removeClass('newinput');
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}
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// animationPower is 0 to skip animation, 1 for linear, 2 for quadratic, etc.
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function insertRow(position, data, animationPower)
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{
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position = Math.max(0, Math.min(rowsPresent.length, position));
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animationPower = (animationPower === undefined ? 4 : animationPower);
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var domId = nextRowId();
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var row = {
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data: data,
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animationStep: ANIMATION_START,
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domId: domId,
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animationPower: animationPower
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};
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handleRowData(row);
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rowsPresent.splice(position, 0, row);
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var tr;
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if (animationPower == 0)
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{
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tr = $(getRowHtml(domId, getUserRowHtml(getAnimationHeight(0), data)));
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row.animationStep = 0;
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}
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else
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{
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rowsFadingIn.push(row);
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tr = $(getRowHtml(domId, getEmptyRowHtml(getAnimationHeight(ANIMATION_START))));
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}
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handleRowNode(tr, data);
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if (position == 0)
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{
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$("table#otheruserstable").prepend(tr);
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}
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else
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{
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rowNode(rowsPresent[position - 1]).after(tr);
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}
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if (animationPower != 0)
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{
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scheduleAnimation();
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}
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handleOtherUserInputs();
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return row;
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}
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function updateRow(position, data)
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{
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var row = rowsPresent[position];
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if (row)
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{
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row.data = data;
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handleRowData(row);
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if (row.animationStep == 0)
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{
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// not currently animating
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var tr = rowNode(row);
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replaceUserRowContents(tr, getAnimationHeight(0), row.data).find("td").css('opacity', (row.opacity === undefined ? 1 : row.opacity));
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handleRowNode(tr, data);
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handleOtherUserInputs();
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}
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}
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}
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function removeRow(position, animationPower)
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{
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animationPower = (animationPower === undefined ? 4 : animationPower);
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var row = rowsPresent[position];
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if (row)
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{
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rowsPresent.splice(position, 1); // remove
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if (animationPower == 0)
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{
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rowNode(row).remove();
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}
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else
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{
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row.animationStep = -row.animationStep; // use symmetry
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row.animationPower = animationPower;
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rowsFadingOut.push(row);
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scheduleAnimation();
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}
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}
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}
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// newPosition is position after the row has been removed
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function moveRow(oldPosition, newPosition, animationPower)
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{
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animationPower = (animationPower === undefined ? 1 : animationPower); // linear is best
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var row = rowsPresent[oldPosition];
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if (row && oldPosition != newPosition)
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{
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var rowData = row.data;
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removeRow(oldPosition, animationPower);
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insertRow(newPosition, rowData, animationPower);
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}
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}
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function animateStep()
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{
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// animation must be symmetrical
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for (var i = rowsFadingIn.length - 1; i >= 0; i--)
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{ // backwards to allow removal
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var row = rowsFadingIn[i];
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var step = ++row.animationStep;
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var animHeight = getAnimationHeight(step, row.animationPower);
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var node = rowNode(row);
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var baseOpacity = (row.opacity === undefined ? 1 : row.opacity);
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if (step <= -OPACITY_STEPS)
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{
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node.find("td").height(animHeight);
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}
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else if (step == -OPACITY_STEPS + 1)
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{
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node.html(getUserRowHtml(animHeight, row.data)).find("td").css('opacity', baseOpacity * 1 / OPACITY_STEPS);
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handleRowNode(node, row.data);
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}
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else if (step < 0)
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{
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node.find("td").css('opacity', baseOpacity * (OPACITY_STEPS - (-step)) / OPACITY_STEPS).height(animHeight);
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}
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else if (step == 0)
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{
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// set HTML in case modified during animation
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node.html(getUserRowHtml(animHeight, row.data)).find("td").css('opacity', baseOpacity * 1).height(animHeight);
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handleRowNode(node, row.data);
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rowsFadingIn.splice(i, 1); // remove from set
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}
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}
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for (var i = rowsFadingOut.length - 1; i >= 0; i--)
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{ // backwards to allow removal
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var row = rowsFadingOut[i];
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var step = ++row.animationStep;
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var node = rowNode(row);
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var animHeight = getAnimationHeight(step, row.animationPower);
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var baseOpacity = (row.opacity === undefined ? 1 : row.opacity);
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if (step < OPACITY_STEPS)
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{
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node.find("td").css('opacity', baseOpacity * (OPACITY_STEPS - step) / OPACITY_STEPS).height(animHeight);
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}
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else if (step == OPACITY_STEPS)
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{
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node.html(getEmptyRowHtml(animHeight));
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}
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else if (step <= ANIMATION_END)
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{
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node.find("td").height(animHeight);
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}
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else
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{
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rowsFadingOut.splice(i, 1); // remove from set
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node.remove();
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}
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}
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handleOtherUserInputs();
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return (rowsFadingIn.length > 0) || (rowsFadingOut.length > 0); // is more to do
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}
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var self = {
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insertRow: insertRow,
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removeRow: removeRow,
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moveRow: moveRow,
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updateRow: updateRow
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};
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return self;
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}()); ////////// rowManager
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var otherUsersInfo = [];
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var otherUsersData = [];
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function rowManagerMakeNameEditor(jnode, userId)
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{
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setUpEditable(jnode, function()
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{
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var existingIndex = findExistingIndex(userId);
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if (existingIndex >= 0)
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{
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return otherUsersInfo[existingIndex].name || '';
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}
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else
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{
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return '';
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}
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}, function(newName)
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{
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if (!newName)
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{
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jnode.addClass("editempty");
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jnode.val("unnamed");
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}
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else
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{
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jnode.attr('disabled', 'disabled');
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pad.suggestUserName(userId, newName);
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}
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});
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}
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function findExistingIndex(userId)
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{
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var existingIndex = -1;
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for (var i = 0; i < otherUsersInfo.length; i++)
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{
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if (otherUsersInfo[i].userId == userId)
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{
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existingIndex = i;
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break;
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}
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}
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return existingIndex;
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}
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function setUpEditable(jqueryNode, valueGetter, valueSetter)
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{
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jqueryNode.bind('focus', function(evt)
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{
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var oldValue = valueGetter();
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if (jqueryNode.val() !== oldValue)
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{
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jqueryNode.val(oldValue);
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}
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jqueryNode.addClass("editactive").removeClass("editempty");
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});
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jqueryNode.bind('blur', function(evt)
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{
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var newValue = jqueryNode.removeClass("editactive").val();
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valueSetter(newValue);
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});
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padutils.bindEnterAndEscape(jqueryNode, function onEnter()
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{
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jqueryNode.blur();
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}, function onEscape()
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{
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jqueryNode.val(valueGetter()).blur();
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});
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jqueryNode.removeAttr('disabled').addClass('editable');
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}
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function updateInviteNotice()
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{
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if (otherUsersInfo.length == 0)
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{
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$("#otheruserstable").hide();
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$("#nootherusers").show();
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}
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else
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{
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$("#nootherusers").hide();
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$("#otheruserstable").show();
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}
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}
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var knocksToIgnore = {};
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var guestPromptFlashState = 0;
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var guestPromptFlash = padutils.makeAnimationScheduler(
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function()
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{
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var prompts = $("#guestprompts .guestprompt");
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if (prompts.length == 0)
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{
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return false; // no more to do
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}
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guestPromptFlashState = 1 - guestPromptFlashState;
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if (guestPromptFlashState)
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{
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prompts.css('background', '#ffa');
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}
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else
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{
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prompts.css('background', '#ffe');
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}
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return true;
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}, 1000);
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var self = {
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init: function(myInitialUserInfo)
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{
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self.setMyUserInfo(myInitialUserInfo);
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$("#otheruserstable tr").remove();
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if (pad.getUserIsGuest())
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{
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$("#myusernameedit").addClass('myusernameedithoverable');
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setUpEditable($("#myusernameedit"), function()
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{
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return myUserInfo.name || '';
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}, function(newValue)
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{
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myUserInfo.name = newValue;
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pad.notifyChangeName(newValue);
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// wrap with setTimeout to do later because we get
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// a double "blur" fire in IE...
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window.setTimeout(function()
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{
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self.renderMyUserInfo();
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}, 0);
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});
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}
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// color picker
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$("#myswatchbox").click(showColorPicker);
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$("#mycolorpicker .pickerswatchouter").click(function()
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{
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$("#mycolorpicker .pickerswatchouter").removeClass('picked');
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$(this).addClass('picked');
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});
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$("#mycolorpickersave").click(function()
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{
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closeColorPicker(true);
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});
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$("#mycolorpickercancel").click(function()
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{
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closeColorPicker(false);
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});
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//
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},
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setMyUserInfo: function(info)
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{
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//translate the colorId
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if(typeof info.colorId == "number")
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{
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info.colorId = clientVars.colorPalette[info.colorId];
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}
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myUserInfo = $.extend(
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{}, info);
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self.renderMyUserInfo();
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},
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userJoinOrUpdate: function(info)
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{
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if ((!info.userId) || (info.userId == myUserInfo.userId))
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{
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// not sure how this would happen
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return;
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}
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var userData = {};
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userData.color = typeof info.colorId == "number" ? clientVars.colorPalette[info.colorId] : info.colorId;
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userData.name = info.name;
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userData.status = '';
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userData.activity = '';
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userData.id = info.userId;
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// Firefox ignores \n in title text; Safari does a linebreak
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userData.titleText = [info.userAgent || '', info.ip || ''].join(' \n');
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var existingIndex = findExistingIndex(info.userId);
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var numUsersBesides = otherUsersInfo.length;
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if (existingIndex >= 0)
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{
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numUsersBesides--;
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}
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var newIndex = padutils.binarySearch(numUsersBesides, function(n)
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{
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if (existingIndex >= 0 && n >= existingIndex)
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{
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// pretend existingIndex isn't there
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n++;
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}
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var infoN = otherUsersInfo[n];
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var nameN = (infoN.name || '').toLowerCase();
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var nameThis = (info.name || '').toLowerCase();
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var idN = infoN.userId;
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var idThis = info.userId;
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return (nameN > nameThis) || (nameN == nameThis && idN > idThis);
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});
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if (existingIndex >= 0)
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{
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// update
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if (existingIndex == newIndex)
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{
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otherUsersInfo[existingIndex] = info;
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otherUsersData[existingIndex] = userData;
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rowManager.updateRow(existingIndex, userData);
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}
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else
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{
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otherUsersInfo.splice(existingIndex, 1);
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otherUsersData.splice(existingIndex, 1);
|
|
otherUsersInfo.splice(newIndex, 0, info);
|
|
otherUsersData.splice(newIndex, 0, userData);
|
|
rowManager.updateRow(existingIndex, userData);
|
|
rowManager.moveRow(existingIndex, newIndex);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
otherUsersInfo.splice(newIndex, 0, info);
|
|
otherUsersData.splice(newIndex, 0, userData);
|
|
rowManager.insertRow(newIndex, userData);
|
|
}
|
|
|
|
updateInviteNotice();
|
|
|
|
self.updateNumberOfOnlineUsers();
|
|
},
|
|
updateNumberOfOnlineUsers: function()
|
|
{
|
|
var online = 1; // you are always online!
|
|
for (var i = 0; i < otherUsersData.length; i++)
|
|
{
|
|
if (otherUsersData[i].status == "")
|
|
{
|
|
online++;
|
|
}
|
|
}
|
|
$("#online_count").text(online);
|
|
|
|
return online;
|
|
},
|
|
userLeave: function(info)
|
|
{
|
|
var existingIndex = findExistingIndex(info.userId);
|
|
if (existingIndex >= 0)
|
|
{
|
|
var userData = otherUsersData[existingIndex];
|
|
userData.status = 'Disconnected';
|
|
rowManager.updateRow(existingIndex, userData);
|
|
if (userData.leaveTimer)
|
|
{
|
|
window.clearTimeout(userData.leaveTimer);
|
|
}
|
|
// set up a timer that will only fire if no leaves,
|
|
// joins, or updates happen for this user in the
|
|
// next N seconds, to remove the user from the list.
|
|
var thisUserId = info.userId;
|
|
var thisLeaveTimer = window.setTimeout(function()
|
|
{
|
|
var newExistingIndex = findExistingIndex(thisUserId);
|
|
if (newExistingIndex >= 0)
|
|
{
|
|
var newUserData = otherUsersData[newExistingIndex];
|
|
if (newUserData.status == 'Disconnected' && newUserData.leaveTimer == thisLeaveTimer)
|
|
{
|
|
otherUsersInfo.splice(newExistingIndex, 1);
|
|
otherUsersData.splice(newExistingIndex, 1);
|
|
rowManager.removeRow(newExistingIndex);
|
|
updateInviteNotice();
|
|
}
|
|
}
|
|
}, 8000); // how long to wait
|
|
userData.leaveTimer = thisLeaveTimer;
|
|
}
|
|
updateInviteNotice();
|
|
|
|
self.updateNumberOfOnlineUsers();
|
|
},
|
|
showGuestPrompt: function(userId, displayName)
|
|
{
|
|
if (knocksToIgnore[userId])
|
|
{
|
|
return;
|
|
}
|
|
|
|
var encodedUserId = padutils.encodeUserId(userId);
|
|
|
|
var actionName = 'hide-guest-prompt-' + encodedUserId;
|
|
padutils.cancelActions(actionName);
|
|
|
|
var box = $("#guestprompt-" + encodedUserId);
|
|
if (box.length == 0)
|
|
{
|
|
// make guest prompt box
|
|
box = $('<div id="guestprompt-' + encodedUserId + '" class="guestprompt"><div class="choices"><a href="javascript:void(paduserlist.answerGuestPrompt(\'' + encodedUserId + '\',false))">Deny</a> <a href="javascript:void(paduserlist.answerGuestPrompt(\'' + encodedUserId + '\',true))">Approve</a></div><div class="guestname"><strong>Guest:</strong> ' + padutils.escapeHtml(displayName) + '</div></div>');
|
|
$("#guestprompts").append(box);
|
|
}
|
|
else
|
|
{
|
|
// update display name
|
|
box.find(".guestname").html('<strong>Guest:</strong> ' + padutils.escapeHtml(displayName));
|
|
}
|
|
var hideLater = padutils.getCancellableAction(actionName, function()
|
|
{
|
|
self.removeGuestPrompt(userId);
|
|
});
|
|
window.setTimeout(hideLater, 15000); // time-out with no knock
|
|
guestPromptFlash.scheduleAnimation();
|
|
},
|
|
removeGuestPrompt: function(userId)
|
|
{
|
|
var box = $("#guestprompt-" + padutils.encodeUserId(userId));
|
|
// remove ID now so a new knock by same user gets new, unfaded box
|
|
box.removeAttr('id').fadeOut("fast", function()
|
|
{
|
|
box.remove();
|
|
});
|
|
|
|
knocksToIgnore[userId] = true;
|
|
window.setTimeout(function()
|
|
{
|
|
delete knocksToIgnore[userId];
|
|
}, 5000);
|
|
},
|
|
answerGuestPrompt: function(encodedUserId, approve)
|
|
{
|
|
var guestId = padutils.decodeUserId(encodedUserId);
|
|
|
|
var msg = {
|
|
type: 'guestanswer',
|
|
authId: pad.getUserId(),
|
|
guestId: guestId,
|
|
answer: (approve ? "approved" : "denied")
|
|
};
|
|
pad.sendClientMessage(msg);
|
|
|
|
self.removeGuestPrompt(guestId);
|
|
},
|
|
renderMyUserInfo: function()
|
|
{
|
|
if (myUserInfo.name)
|
|
{
|
|
$("#myusernameedit").removeClass("editempty").val(
|
|
myUserInfo.name);
|
|
}
|
|
else
|
|
{
|
|
$("#myusernameedit").addClass("editempty").val("Enter your name");
|
|
}
|
|
if (colorPickerOpen)
|
|
{
|
|
$("#myswatchbox").addClass('myswatchboxunhoverable').removeClass('myswatchboxhoverable');
|
|
}
|
|
else
|
|
{
|
|
$("#myswatchbox").addClass('myswatchboxhoverable').removeClass('myswatchboxunhoverable');
|
|
}
|
|
|
|
$("#myswatch").css({'background-color': myUserInfo.colorId});
|
|
|
|
if ($.browser.msie && parseInt($.browser.version) <= 8) {
|
|
$("#usericon").css({'box-shadow': 'inset 0 0 30px ' + myUserInfo.colorId,'background-color': myUserInfo.colorId});
|
|
}
|
|
else
|
|
{
|
|
$("#usericon").css({'box-shadow': 'inset 0 0 30px ' + myUserInfo.colorId});
|
|
}
|
|
}
|
|
};
|
|
return self;
|
|
}());
|
|
|
|
function getColorPickerSwatchIndex(jnode)
|
|
{
|
|
// return Number(jnode.get(0).className.match(/\bn([0-9]+)\b/)[1])-1;
|
|
return $("#colorpickerswatches li").index(jnode);
|
|
}
|
|
|
|
function closeColorPicker(accept)
|
|
{
|
|
if (accept)
|
|
{
|
|
var newColor = $("#mycolorpickerpreview").css("background-color");
|
|
var parts = newColor.match(/^rgb\((\d+),\s*(\d+),\s*(\d+)\)$/);
|
|
// parts now should be ["rgb(0, 70, 255", "0", "70", "255"]
|
|
delete (parts[0]);
|
|
for (var i = 1; i <= 3; ++i) {
|
|
parts[i] = parseInt(parts[i]).toString(16);
|
|
if (parts[i].length == 1) parts[i] = '0' + parts[i];
|
|
}
|
|
var newColor = "#" +parts.join(''); // "0070ff"
|
|
|
|
myUserInfo.colorId = newColor;
|
|
pad.notifyChangeColor(newColor);
|
|
paduserlist.renderMyUserInfo();
|
|
}
|
|
else
|
|
{
|
|
//pad.notifyChangeColor(previousColorId);
|
|
//paduserlist.renderMyUserInfo();
|
|
}
|
|
|
|
colorPickerOpen = false;
|
|
$("#mycolorpicker").fadeOut("fast");
|
|
}
|
|
|
|
function showColorPicker()
|
|
{
|
|
previousColorId = myUserInfo.colorId;
|
|
|
|
if (!colorPickerOpen)
|
|
{
|
|
var palette = pad.getColorPalette();
|
|
|
|
if (!colorPickerSetup)
|
|
{
|
|
var colorsList = $("#colorpickerswatches")
|
|
for (var i = 0; i < palette.length; i++)
|
|
{
|
|
|
|
var li = $('<li>', {
|
|
style: 'background: ' + palette[i] + ';'
|
|
});
|
|
|
|
li.appendTo(colorsList);
|
|
|
|
li.bind('click', function(event)
|
|
{
|
|
$("#colorpickerswatches li").removeClass('picked');
|
|
$(event.target).addClass("picked");
|
|
|
|
var newColorId = getColorPickerSwatchIndex($("#colorpickerswatches .picked"));
|
|
pad.notifyChangeColor(newColorId);
|
|
});
|
|
|
|
}
|
|
|
|
colorPickerSetup = true;
|
|
}
|
|
|
|
$("#mycolorpicker").fadeIn();
|
|
colorPickerOpen = true;
|
|
|
|
$("#colorpickerswatches li").removeClass('picked');
|
|
$($("#colorpickerswatches li")[myUserInfo.colorId]).addClass("picked"); //seems weird
|
|
}
|
|
}
|