htdocs: Add clipboard.js

We provide our own, much smaller implementation of this currently.
However, we want to be able to implement slightly different variants of
this elsewhere and using an existing library helps avoid reinventing the
wheel and lets us use already battle-tested code.

Signed-off-by: Stephen Finucane <stephen@that.guru>
Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>

4 files changed, 28 insertions, 15 deletions

diff --git a/htdocs/README.rst b/htdocs/README.rst
index 513fb24..62f15c2 100644
--- a/htdocs/README.rst
+++ b/htdocs/README.rst
@@ -65,6 +65,16 @@ js
 
   Part of Patchwork.
 
+``clipboard.min.js``
+
+  Modern copy to clipboard. No Flash. Just 3kb gzipped
+
+  This is used to allow us to "click to copy" various elements in the UI.
+
+  :Website: https://clipboardjs.com/
+  :GitHub: https://github.com/zenorocha/clipboard.js/
+  :Version: 1.7.1
+
 ``jquery.js``
 
   jQuery is a fast, small, and feature-rich JavaScript library. It makes things
diff --git a/htdocs/js/clipboard.min.js b/htdocs/js/clipboard.min.js
new file mode 100644
index 0000000..90fd15b
--- /dev/null
+++ b/htdocs/js/clipboard.min.js
@@ -0,0 +1,7 @@
+/*!
+ * clipboard.js v1.7.1
+ * https://zenorocha.github.io/clipboard.js
+ *
+ * Licensed MIT © Zeno Rocha
+ */
+!function(t){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=t();else if("function"==typeof define&&define.amd)define([],t);else{var e;e="undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:this,e.Clipboard=t()}}(function(){var t,e,n;return function t(e,n,o){function i(a,c){if(!n[a]){if(!e[a]){var l="function"==typeof require&&require;if(!c&&l)return l(a,!0);if(r)return r(a,!0);var s=new Error("Cannot find module '"+a+"'");throw s.code="MODULE_NOT_FOUND",s}var u=n[a]={exports:{}};e[a][0].call(u.exports,function(t){var n=e[a][1][t];return i(n||t)},u,u.exports,t,e,n,o)}return n[a].exports}for(var r="function"==typeof require&&require,a=0;a<o.length;a++)i(o[a]);return i}({1:[function(t,e,n){function o(t,e){for(;t&&t.nodeType!==i;){if("function"==typeof t.matches&&t.matches(e))return t;t=t.parentNode}}var i=9;if("undefined"!=typeof Element&&!Element.prototype.matches){var r=Element.prototype;r.matches=r.matchesSelector||r.mozMatchesSelector||r.msMatchesSelector||r.oMatchesSelector||r.webkitMatchesSelector}e.exports=o},{}],2:[function(t,e,n){function o(t,e,n,o,r){var a=i.apply(this,arguments);return t.addEventListener(n,a,r),{destroy:function(){t.removeEventListener(n,a,r)}}}function i(t,e,n,o){return function(n){n.delegateTarget=r(n.target,e),n.delegateTarget&&o.call(t,n)}}var r=t("./closest");e.exports=o},{"./closest":1}],3:[function(t,e,n){n.node=function(t){return void 0!==t&&t instanceof HTMLElement&&1===t.nodeType},n.nodeList=function(t){var e=Object.prototype.toString.call(t);return void 0!==t&&("[object NodeList]"===e||"[object HTMLCollection]"===e)&&"length"in t&&(0===t.length||n.node(t[0]))},n.string=function(t){return"string"==typeof t||t instanceof String},n.fn=function(t){return"[object Function]"===Object.prototype.toString.call(t)}},{}],4:[function(t,e,n){function o(t,e,n){if(!t&&!e&&!n)throw new Error("Missing required arguments");if(!c.string(e))throw new TypeError("Second argument must be a String");if(!c.fn(n))throw new TypeError("Third argument must be a Function");if(c.node(t))return i(t,e,n);if(c.nodeList(t))return r(t,e,n);if(c.string(t))return a(t,e,n);throw new TypeError("First argument must be a String, HTMLElement, HTMLCollection, or NodeList")}function i(t,e,n){return t.addEventListener(e,n),{destroy:function(){t.removeEventListener(e,n)}}}function r(t,e,n){return Array.prototype.forEach.call(t,function(t){t.addEventListener(e,n)}),{destroy:function(){Array.prototype.forEach.call(t,function(t){t.removeEventListener(e,n)})}}}function a(t,e,n){return l(document.body,t,e,n)}var c=t("./is"),l=t("delegate");e.exports=o},{"./is":3,delegate:2}],5:[function(t,e,n){function o(t){var e;if("SELECT"===t.nodeName)t.focus(),e=t.value;else if("INPUT"===t.nodeName||"TEXTAREA"===t.nodeName){var n=t.hasAttribute("readonly");n||t.setAttribute("readonly",""),t.select(),t.setSelectionRange(0,t.value.length),n||t.removeAttribute("readonly"),e=t.value}else{t.hasAttribute("contenteditable")&&t.focus();var o=window.getSelection(),i=document.createRange();i.selectNodeContents(t),o.removeAllRanges(),o.addRange(i),e=o.toString()}return e}e.exports=o},{}],6:[function(t,e,n){function o(){}o.prototype={on:function(t,e,n){var o=this.e||(this.e={});return(o[t]||(o[t]=[])).push({fn:e,ctx:n}),this},once:function(t,e,n){function o(){i.off(t,o),e.apply(n,arguments)}var i=this;return o._=e,this.on(t,o,n)},emit:function(t){var e=[].slice.call(arguments,1),n=((this.e||(this.e={}))[t]||[]).slice(),o=0,i=n.length;for(o;o<i;o++)n[o].fn.apply(n[o].ctx,e);return this},off:function(t,e){var n=this.e||(this.e={}),o=n[t],i=[];if(o&&e)for(var r=0,a=o.length;r<a;r++)o[r].fn!==e&&o[r].fn._!==e&&i.push(o[r]);return i.length?n[t]=i:delete n[t],this}},e.exports=o},{}],7:[function(e,n,o){!function(i,r){if("function"==typeof t&&t.amd)t(["module","select"],r);else if(void 0!==o)r(n,e("select"));else{var a={exports:{}};r(a,i.select),i.clipboardAction=a.exports}}(this,function(t,e){"use strict";function n(t){return t&&t.__esModule?t:{default:t}}function o(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}var i=n(e),r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t},a=function(){function t(t,e){for(var n=0;n<e.length;n++){var o=e[n];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}return function(e,n,o){return n&&t(e.prototype,n),o&&t(e,o),e}}(),c=function(){function t(e){o(this,t),this.resolveOptions(e),this.initSelection()}return a(t,[{key:"resolveOptions",value:function t(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};this.action=e.action,this.container=e.container,this.emitter=e.emitter,this.target=e.target,this.text=e.text,this.trigger=e.trigger,this.selectedText=""}},{key:"initSelection",value:function t(){this.text?this.selectFake():this.target&&this.selectTarget()}},{key:"selectFake",value:function t(){var e=this,n="rtl"==document.documentElement.getAttribute("dir");this.removeFake(),this.fakeHandlerCallback=function(){return e.removeFake()},this.fakeHandler=this.container.addEventListener("click",this.fakeHandlerCallback)||!0,this.fakeElem=document.createElement("textarea"),this.fakeElem.style.fontSize="12pt",this.fakeElem.style.border="0",this.fakeElem.style.padding="0",this.fakeElem.style.margin="0",this.fakeElem.style.position="absolute",this.fakeElem.style[n?"right":"left"]="-9999px";var o=window.pageYOffset||document.documentElement.scrollTop;this.fakeElem.style.top=o+"px",this.fakeElem.setAttribute("readonly",""),this.fakeElem.value=this.text,this.container.appendChild(this.fakeElem),this.selectedText=(0,i.default)(this.fakeElem),this.copyText()}},{key:"removeFake",value:function t(){this.fakeHandler&&(this.container.removeEventListener("click",this.fakeHandlerCallback),this.fakeHandler=null,this.fakeHandlerCallback=null),this.fakeElem&&(this.container.removeChild(this.fakeElem),this.fakeElem=null)}},{key:"selectTarget",value:function t(){this.selectedText=(0,i.default)(this.target),this.copyText()}},{key:"copyText",value:function t(){var e=void 0;try{e=document.execCommand(this.action)}catch(t){e=!1}this.handleResult(e)}},{key:"handleResult",value:function t(e){this.emitter.emit(e?"success":"error",{action:this.action,text:this.selectedText,trigger:this.trigger,clearSelection:this.clearSelection.bind(this)})}},{key:"clearSelection",value:function t(){this.trigger&&this.trigger.focus(),window.getSelection().removeAllRanges()}},{key:"destroy",value:function t(){this.removeFake()}},{key:"action",set:function t(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:"copy";if(this._action=e,"copy"!==this._action&&"cut"!==this._action)throw new Error('Invalid "action" value, use either "copy" or "cut"')},get:function t(){return this._action}},{key:"target",set:function t(e){if(void 0!==e){if(!e||"object"!==(void 0===e?"undefined":r(e))||1!==e.nodeType)throw new Error('Invalid "target" value, use a valid Element');if("copy"===this.action&&e.hasAttribute("disabled"))throw new Error('Invalid "target" attribute. Please use "readonly" instead of "disabled" attribute');if("cut"===this.action&&(e.hasAttribute("readonly")||e.hasAttribute("disabled")))throw new Error('Invalid "target" attribute. You can\'t cut text from elements with "readonly" or "disabled" attributes');this._target=e}},get:function t(){return this._target}}]),t}();t.exports=c})},{select:5}],8:[function(e,n,o){!function(i,r){if("function"==typeof t&&t.amd)t(["module","./clipboard-action","tiny-emitter","good-listener"],r);else if(void 0!==o)r(n,e("./clipboard-action"),e("tiny-emitter"),e("good-listener"));else{var a={exports:{}};r(a,i.clipboardAction,i.tinyEmitter,i.goodListener),i.clipboard=a.exports}}(this,function(t,e,n,o){"use strict";function i(t){return t&&t.__esModule?t:{default:t}}function r(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function a(t,e){if(!t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!e||"object"!=typeof e&&"function"!=typeof e?t:e}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+typeof e);t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(Object.setPrototypeOf?Object.setPrototypeOf(t,e):t.__proto__=e)}function l(t,e){var n="data-clipboard-"+t;if(e.hasAttribute(n))return e.getAttribute(n)}var s=i(e),u=i(n),f=i(o),d="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t},h=function(){function t(t,e){for(var n=0;n<e.length;n++){var o=e[n];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}return function(e,n,o){return n&&t(e.prototype,n),o&&t(e,o),e}}(),p=function(t){function e(t,n){r(this,e);var o=a(this,(e.__proto__||Object.getPrototypeOf(e)).call(this));return o.resolveOptions(n),o.listenClick(t),o}return c(e,t),h(e,[{key:"resolveOptions",value:function t(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};this.action="function"==typeof e.action?e.action:this.defaultAction,this.target="function"==typeof e.target?e.target:this.defaultTarget,this.text="function"==typeof e.text?e.text:this.defaultText,this.container="object"===d(e.container)?e.container:document.body}},{key:"listenClick",value:function t(e){var n=this;this.listener=(0,f.default)(e,"click",function(t){return n.onClick(t)})}},{key:"onClick",value:function t(e){var n=e.delegateTarget||e.currentTarget;this.clipboardAction&&(this.clipboardAction=null),this.clipboardAction=new s.default({action:this.action(n),target:this.target(n),text:this.text(n),container:this.container,trigger:n,emitter:this})}},{key:"defaultAction",value:function t(e){return l("action",e)}},{key:"defaultTarget",value:function t(e){var n=l("target",e);if(n)return document.querySelector(n)}},{key:"defaultText",value:function t(e){return l("text",e)}},{key:"destroy",value:function t(){this.listener.destroy(),this.clipboardAction&&(this.clipboardAction.destroy(),this.clipboardAction=null)}}],[{key:"isSupported",value:function t(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:["copy","cut"],n="string"==typeof e?[e]:e,o=!!document.queryCommandSupported;return n.forEach(function(t){o=o&&!!document.queryCommandSupported(t)}),o}}]),e}(u.default);t.exports=p})},{"./clipboard-action":7,"good-listener":4,"tiny-emitter":6}]},{},[8])(8)});
\ No newline at end of file
diff --git a/patchwork/templates/patchwork/patch-list.html b/patchwork/templates/patchwork/patch-list.html
index cdc368f..c645ec8 100644
--- a/patchwork/templates/patchwork/patch-list.html
+++ b/patchwork/templates/patchwork/patch-list.html
@@ -50,19 +50,8 @@ $(document).ready(function() {
         e.preventDefault();
     });
 });
-
-{% if user.is_authenticated and user.profile.show_ids %}
-function copyToClipboard(patch_id) {
-    input = document.createElement('input');
-    input.setAttribute('type', 'text');
-    input.setAttribute('value', patch_id);
-    input = document.body.appendChild(input);
-    input.select();
-    document.execCommand('copy');
-    input.remove();
-}
-{% endif %}
 </script>
+
 <form method="post">
 {% csrf_token %}
 <input type="hidden" name="form" value="patchlistform"/>
@@ -195,9 +184,10 @@ function copyToClipboard(patch_id) {
    {% endif %}
    {% if user.is_authenticated and user.profile.show_ids %}
    <td>
-     <button type="button" class="btn btn-xs"
-	     onClick="javascript:copyToClipboard('{{patch.id}}');"
-	     title="Copy to Clipboard">{{ patch.id }}</button>
+    <button type="button" class="btn btn-xs btn-copy"
+     data-clipboard-text="{{ patch.id }}" title="Copy to Clipboard">
+      {{ patch.id }}
+    </button>
    </td>
    {% endif %}
    <td>
diff --git a/templates/base.html b/templates/base.html
index d0f59b4..501208f 100644
--- a/templates/base.html
+++ b/templates/base.html
@@ -20,6 +20,12 @@
   <![endif]-->
   <script type="text/javascript" src="{% static "js/bootstrap.min.js" %}"></script>
   <script type="text/javascript" src="{% static "js/selectize.min.js" %}"></script>
+  <script type="text/javascript" src="{% static "js/clipboard.min.js" %}"></script>
+  <script type="text/javascript">
+   $(document).ready(function() {
+       new Clipboard(document.querySelectorAll('button.btn-copy'));
+   });
+  </script>
 {% block headers %}{% endblock %}
  </head>
  <body>