added another example, updated readme
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Kevin Jahns
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18
Examples/Chat/index.html
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18
Examples/Chat/index.html
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<!DOCTYPE html>
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<html>
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<body>
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<style>
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#chat p span {
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color: blue;
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}
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</style>
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<div id="chat"></div>
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<form id="chatform">
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<input name="username" type="text" style="width:15%;">
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<input name="message" type="text" style="width:60%;">
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<input type="submit" value="Send">
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</form>
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<script src="../bower_components/yjs/y.js"></script>
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<script src="./index.js"></script>
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</body>
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</html>
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75
Examples/Chat/index.js
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75
Examples/Chat/index.js
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/* @flow */
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/* global Y */
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// initialize a shared object. This function call returns a promise!
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Y({
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db: {
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name: 'memory'
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},
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connector: {
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name: 'websockets-client',
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room: 'chat-example'
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// debug: true,
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// url: 'http://127.0.0.1:2345'
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},
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sourceDir: '/bower_components',
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share: {
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chat: 'Array'
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}
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}).then(function (y) {
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window.y = y
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// This functions inserts a message at the specified position in the DOM
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function appendMessage(message, position) {
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var p = document.createElement('p')
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var uname = document.createElement('span')
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uname.appendChild(document.createTextNode(message.username + ": "))
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p.appendChild(uname)
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p.appendChild(document.createTextNode(message.message))
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document.querySelector('#chat').insertBefore(p, chat.children[position] || null)
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}
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// This function makes sure that only 7 messages exist in the chat history.
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// The rest is deleted
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function cleanupChat () {
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var len
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while ((len = y.share.chat.length) > 7) {
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y.share.chat.delete(0)
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}
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}
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// Insert the initial content
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y.share.chat.toArray().forEach(appendMessage)
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cleanupChat()
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// whenever content changes, make sure to reflect the changes in the DOM
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y.share.chat.observe(function (events) {
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for (var i = 0; i < events.length; i++) {
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if (events[i].type === 'insert') {
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appendMessage(events[i].value, events[i].index)
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} else if (events[i].type === 'delete') {
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chat.children[events[i].index].remove()
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}
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}
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// concurrent insertions may result in a history > 7, so cleanup here
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cleanupChat()
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})
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document.querySelector('#chatform').onsubmit = function (event) {
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// the form is submitted
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var message = {
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username: this.querySelector("[name=username]").value,
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message: this.querySelector("[name=message]").value
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}
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if (message.username.length > 0 && message.message.length > 0) {
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if (y.share.chat.length > 6) {
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// If we are goint to insert the 8th element, make sure to delete first.
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y.share.chat.delete(0)
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}
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// Here we insert a message in the shared chat type.
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// This will call the observe function (see line 40)
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// and reflect the change in the DOM
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y.share.chat.push([message])
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this.reset()
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}
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// Do not send this form!
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event.preventDefault()
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return false
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}
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})
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@ -16,7 +16,6 @@
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<path d="M 325.63989,452.69678 C 317.92163,423.11035 287.36353,445.9126 268.64673,447.82227 C 250.27417,449.69727 239.77563,436.57373 239.77563,419.32568 C 239.77563,402.07812 254.02368,395.70361 265.27222,394.5791 C 276.52075,393.4541 282.14526,396.45361 297.89331,407.32715 C 313.64136,418.20117 326.3894,399.45313 327.8894,392.7041 C 329.3894,385.95508 320.76538,342.83545 320.01538,330.46191 C 319.75855,326.2207 320.56372,321.21484 321.58911,315.6377 C 315.92114,317.13525 309.58862,318.82715 302.39282,320.71338 C 263.77222,330.83691 232.27661,318.46338 221.40259,308.71484 C 210.52905,298.96582 229.27661,284.71777 234.90112,279.09326 C 240.52563,273.46924 243.90015,262.59521 239.77563,247.22217 C 235.65112,231.84912 201.90503,222.10059 179.03296,239.34814 C 156.16089,256.59619 180.90796,285.09277 188.40698,293.3418 C 195.90601,301.59033 186.15698,312.08936 170.03442,313.58887 C 160.60962,314.46582 119.15894,313.67676 86.340576,312.87012 C 85.573975,347.74561 84.581299,386.15088 83.794922,402.07812 C 82.295166,432.44922 109.29175,422.32568 115.66577,420.82568 C 122.04028,419.32568 126.16479,409.57715 143.03735,408.45215 C 185.9231,405.59326 186.09985,466.69629 144.16235,467.69482 C 128.41431,468.06982 113.79126,451.19678 108.16675,447.44727 C 102.54272,443.69775 87.919433,442.94775 83.794922,457.9458 C 82.01709,464.41113 78.118652,481.65137 78.098144,496.18994 C 78.071045,515.38037 82.295166,531.81201 82.295166,531.81201 C 82.295166,531.81201 105.54224,526.5625 149.41187,526.5625 C 193.28149,526.5625 199.65552,547.93506 194.78101,558.80859 C 189.90649,569.68213 181.28296,568.93213 179.40796,583.18066 C 172.7063,634.11133 253.34106,631.08203 249.14917,584.68018 C 247.96948,571.62354 237.16528,571.66699 232.27661,557.68359 C 222.17944,528.80273 244.64966,523.56299 257.39819,524.68799 C 263.59351,525.23437 290.95679,529.73389 320.75757,531.21582 C 321.22437,531.23877 321.69312,531.25928 322.16089,531.28125 C 326.09985,518.06592 329.95825,503.87646 330.1394,498.44092 C 330.51392,487.19238 330.1394,469.94434 325.63989,452.69678 z " style="fill:#d3ea9d;stroke:#000000" id="path2508"/>
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</g>
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</svg>
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<script src="../bower_components/yjs/y.js"></script>
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<script src="../bower_components/d3/d3.js"></script>
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<script src="./index.js"></script>
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@ -1,8 +1,7 @@
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<!DOCTYPE html>
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<html>
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<body>
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<textarea style="width:80%;" rows=40 id="textfield"></textarea>
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<textarea style="width:80%;" rows=40 id="textfield" autocomplete="off" autocorrect="off" autocapitalize="off" spellcheck="false"></textarea>
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<script src="../bower_components/yjs/y.js"></script>
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<script src="./index.js"></script>
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</body>
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@ -9,7 +9,7 @@ You can create you own shared types easily. Therefore, you can take matters into
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| Name | Description |
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|----------|-------------------|
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| map | Add, update, and remove properties of an object. Included in Yjs|
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|[map](https://github.com/y-js/y-map) | Add, update, and remove properties of an object. Included in Yjs|
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|[array](https://github.com/y-js/y-array) | A shared linked list implementation |
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|[selections](https://github.com/y-js/y-selections) | Manages selections on types that use linear structures (e.g. the y-array type). Select a range of elements, and assign meaning to them.|
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|[xml](https://github.com/y-js/y-xml) | An implementation of the DOM. You can create a two way binding to Browser DOM objects|
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@ -121,7 +121,7 @@ There are some friendly people on [! I try to fix them very soon, if possible.
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## Changelog
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### 1.0
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### 1.0.0
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This is a complete rewrite of the 0.5 version of Yjs. Since Yjs 1.0 it is possible to work asynchronously on a persistent database, which enables offline support.
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* Switched to semver versioning
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* Requires a promise implementation in environment (es6 promises suffice, included in all the major browsers). Otherwise you have to include a polyfill
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@ -1,6 +1,6 @@
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{
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"name": "yjs",
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"version": "0.7.0",
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"version": "0.7.1",
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"homepage": "y-js.org",
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"authors": [
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"Kevin Jahns <kevin.jahns@rwth-aachen.de>"
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@ -1,6 +1,6 @@
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{
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"name": "yjs",
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"version": "0.6.42",
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"version": "0.7.1",
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"description": "A framework for real-time p2p shared editing on arbitrary complex data types",
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"main": "y.js",
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"scripts": {
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1
y.es6
1
y.es6
@ -2238,6 +2238,7 @@ require('./Connectors/Test.js')(Y)
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var requiringModules = {}
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module.exports = Y
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Y.requiringModules = requiringModules
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Y.extend = function (name, value) {
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Y[name] = value
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