polygerrit-ui/app/elements/gr-diff-comment.html - gerrit - Git at Google

 <!--
 Copyright (C) 2015 The Android Open Source Project

 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at

 http://www.apache.org/licenses/LICENSE-2.0

 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
 -->

 <link rel="import" href="../bower_components/polymer/polymer.html">
 <link rel="import" href="../bower_components/iron-autogrow-textarea/iron-autogrow-textarea.html">
 <link rel="import" href="gr-date-formatter.html">
 <link rel="import" href="gr-linked-text.html">
 <link rel="import" href="gr-request.html">

 <dom-module id="gr-diff-comment">
   <template>
     <style>
       :host {
         background-color: #ffd;
         display: block;
         --iron-autogrow-textarea: {
           padding: 2px;
         };
       }
       :host([disabled]) {
         pointer-events: none;
       }
       :host([disabled]) .container {
         opacity: .5;
       }
       .header,
       .message,
       .actions {
         padding: .5em .7em;
       }
       .header {
         display: flex;
         padding-bottom: 0;
         font-family: 'Open Sans', sans-serif;
       }
       .headerLeft {
         flex: 1;
       }
       .authorName,
       .draftLabel {
         font-weight: bold;
       }
       .draftLabel {
         color: #999;
         display: none;
       }
       .date {
         justify-content: flex-end;
         margin-left: 5px;
       }
       a.date:link,
       a.date:visited {
         color: #666;
       }
       .actions {
         display: flex;
         padding-top: 0;
       }
       .action {
         cursor: pointer;
         margin-right: .5em;
         padding: .2em .6em .3em;
       }
       .danger {
         display: flex;
         flex: 1;
         justify-content: flex-end;
       }
       .editMessage {
         display: none;
         margin: .5em .7em;
         width: calc(100% - 1.4em - 2px);
       }
       .danger .action {
         margin-right: 0;
       }
       .container:not(.draft) .actions :not(.reply):not(.quote):not(.done) {
         display: none;
       }
       .draft .reply,
       .draft .quote,
       .draft .done {
         display: none;
       }
       .draft .draftLabel {
         display: inline;
       }
       .draft:not(.editing) .save,
       .draft:not(.editing) .cancel {
         display: none;
       }
       .editing .message,
       .editing .reply,
       .editing .quote,
       .editing .done,
       .editing .edit {
         display: none;
       }
       .editing .editMessage {
         background-color: #fff;
         display: block;
       }
     </style>
     <div class="container" id="container">
       <div class="header" id="header">
         <div class="headerLeft">
           <span class="authorName">[[comment.author.name]]</span>
           <span class="draftLabel">DRAFT</span>
         </div>
         <a class="date" href$="[[_computeLinkToComment(comment)]]" on-tap="_handleLinkTap">
           <gr-date-formatter date-str="[[comment.updated]]"></gr-date-formatter>
         </a>
       </div>
       <iron-autogrow-textarea
           id="editTextarea"
           class="editMessage"
           disabled="{{disabled}}"
           rows="4"
           bind-value="{{_editDraft}}"
           on-keyup="_handleTextareaKeyup"
           on-keydown="_handleTextareaKeydown"></iron-autogrow-textarea>
       <gr-linked-text class="message"
           pre
           content="[[comment.message]]"
           config="[[projectConfig.commentlinks]]"></gr-linked-text>
       <div class="actions" hidden$="[[!showActions]]">
         <button class="action reply" on-tap="_handleReply">Reply</button>
         <button class="action quote" on-tap="_handleQuote">Quote</button>
         <button class="action done" on-tap="_handleDone">Done</button>
         <button class="action edit" on-tap="_handleEdit">Edit</button>
         <button class="action save" on-tap="_handleSave"
             disabled$="[[_computeSaveDisabled(_editDraft)]]">Save</button>
         <button class="action cancel" on-tap="_handleCancel" hidden>Cancel</button>
         <div class="danger">
           <button class="action discard" on-tap="_handleDiscard">Discard</button>
         </div>
       </div>
     </div>
   </template>
   <script>
   (function() {
     'use strict';

     Polymer({
       is: 'gr-diff-comment',

       /**
        * Fired when the height of the comment changes.
        *
        * @event height-change
        */

       /**
        * Fired when the Reply action is triggered.
        *
        * @event reply
        */

       /**
        * Fired when the Done action is triggered.
        *
        * @event done
        */

       /**
        * Fired when this comment is discarded.
        *
        * @event discard
        */

       properties: {
         changeNum: String,
         comment: {
           type: Object,
           notify: true,
         },
         disabled: {
           type: Boolean,
           value: false,
           reflectToAttribute: true,
         },
         draft: {
           type: Boolean,
           value: false,
           observer: '_draftChanged',
         },
         editing: {
           type: Boolean,
           value: false,
           observer: '_editingChanged',
         },
         patchNum: String,
         showActions: Boolean,
         projectConfig: Object,

         _xhrPromise: Object,  // Used for testing.
         _editDraft: String,
       },

       ready: function() {
         this._editDraft = (this.comment && this.comment.message) || '';
         this.editing = this._editDraft.length == 0;
       },

       attached: function() {
         this._heightChanged();
       },

       save: function() {
         this.comment.message = this._editDraft;
         this.disabled = true;
         var endpoint = this._restEndpoint(this.comment.id);
         this._send('PUT', endpoint).then(function(req) {
           this.disabled = false;
           var comment = req.response;
           comment.__draft = true;
           // Maintain the ephemeral draft ID for identification by other
           // elements.
           if (this.comment.__draftID) {
             comment.__draftID = this.comment.__draftID;
           }
           this.comment = comment;
           this.editing = false;
         }.bind(this)).catch(function(err) {
           alert('Your draft couldn’t be saved. Check the console and contact ' +
               'the PolyGerrit team for assistance.');
           this.disabled = false;
         }.bind(this));
       },

       _heightChanged: function() {
         this.async(function() {
           this.fire('height-change', {height: this.offsetHeight},
               {bubbles: false});
         }.bind(this));
       },

       _draftChanged: function(draft) {
         this.$.container.classList.toggle('draft', draft);
       },

       _editingChanged: function(editing) {
         this.$.container.classList.toggle('editing', editing);
         if (editing) {
           var textarea = this.$.editTextarea.textarea;
           // Put the cursor at the end always.
           textarea.selectionStart = textarea.value.length;
           textarea.selectionEnd = textarea.selectionStart;
           this.async(function() {
             textarea.focus();
           }.bind(this));
         }
         if (this.comment && this.comment.id) {
           this.$$('.cancel').hidden = !editing;
         }
         this._heightChanged();
       },

       _computeLinkToComment: function(comment) {
         return '#' + comment.line;
       },

       _computeSaveDisabled: function(draft) {
         return draft == null || draft.trim() == '';
       },

       _handleTextareaKeyup: function(e) {
         // TODO(andybons): This isn't always true, but I can't currently think
         // of a better metric.
         this._heightChanged();
       },

       _handleTextareaKeydown: function(e) {
         if (e.keyCode == 27) {  // 'esc'
           this._handleCancel(e);
         }
       },

       _handleLinkTap: function(e) {
         e.preventDefault();
         var hash = this._computeLinkToComment(this.comment);
         // Don't add the hash to the window history if it's already there.
         // Otherwise you mess up expected back button behavior.
         if (window.location.hash == hash) { return; }
         // Change the URL but don’t trigger a nav event. Otherwise it will
         // reload the page.
         page.show(window.location.pathname + hash, null, false);
       },

       _handleReply: function(e) {
         this._preventDefaultAndBlur(e);
         this.fire('reply', {comment: this.comment}, {bubbles: false});
       },

       _handleQuote: function(e) {
         this._preventDefaultAndBlur(e);
         this.fire('reply', {comment: this.comment, quote: true},
             {bubbles: false});
       },

       _handleDone: function(e) {
         this._preventDefaultAndBlur(e);
         this.fire('done', {comment: this.comment}, {bubbles: false});
       },

       _handleEdit: function(e) {
         this._preventDefaultAndBlur(e);
         this._editDraft = this.comment.message;
         this.editing = true;
       },

       _handleSave: function(e) {
         this._preventDefaultAndBlur(e);
         this.save();
       },

       _handleCancel: function(e) {
         this._preventDefaultAndBlur(e);
         if (this.comment.message == null || this.comment.message.length == 0) {
           this.fire('discard', null, {bubbles: false});
           return;
         }
         this._editDraft = this.comment.message;
         this.editing = false;
       },

       _handleDiscard: function(e) {
         this._preventDefaultAndBlur(e);
         if (!this.comment.__draft) {
           throw Error('Cannot discard a non-draft comment.');
         }
         this.disabled = true;
         var commentID = this.comment.id;
         if (!commentID) {
           this.fire('discard', null, {bubbles: false});
           return;
         }
         this._send('DELETE', this._restEndpoint(commentID)).then(function(req) {
           this.fire('discard', null, {bubbles: false});
         }.bind(this)).catch(function(err) {
           alert('Your draft couldn’t be deleted. Check the console and ' +
               'contact the PolyGerrit team for assistance.');
           this.disabled = false;
         }.bind(this));
       },

       _preventDefaultAndBlur: function(e) {
         e.preventDefault();
         Polymer.dom(e).rootTarget.blur();
       },

       _send: function(method, url) {
         var xhr = document.createElement('gr-request');
         var opts = {
           method: method,
           url: url,
         };
         if (method == 'PUT' || method == 'POST') {
           opts.body = this.comment;
         }
         this._xhrPromise = xhr.send(opts);
         return this._xhrPromise;
       },

       _restEndpoint: function(id) {
         var path = '/changes/' + this.changeNum + '/revisions/' +
             this.patchNum + '/drafts';
         if (id) {
           path += '/' + id;
         }
         return path;
       },

     });
   })();
   </script>
 </dom-module>
	<!--
	Copyright (C) 2015 The Android Open Source Project

	Licensed under the Apache License, Version 2.0 (the "License");
	you may not use this file except in compliance with the License.
	You may obtain a copy of the License at

	http://www.apache.org/licenses/LICENSE-2.0

	Unless required by applicable law or agreed to in writing, software
	distributed under the License is distributed on an "AS IS" BASIS,
	WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	See the License for the specific language governing permissions and
	limitations under the License.
	-->

	<link rel="import" href="../bower_components/polymer/polymer.html">
	<link rel="import" href="../bower_components/iron-autogrow-textarea/iron-autogrow-textarea.html">
	<link rel="import" href="gr-date-formatter.html">
	<link rel="import" href="gr-linked-text.html">
	<link rel="import" href="gr-request.html">

	<dom-module id="gr-diff-comment">
	<template>
	<style>
	:host {
	background-color: #ffd;
	display: block;
	--iron-autogrow-textarea: {
	padding: 2px;
	};
	}
	:host([disabled]) {
	pointer-events: none;
	}
	:host([disabled]) .container {
	opacity: .5;
	}
	.header,
	.message,
	.actions {
	padding: .5em .7em;
	}
	.header {
	display: flex;
	padding-bottom: 0;
	font-family: 'Open Sans', sans-serif;
	}
	.headerLeft {
	flex: 1;
	}
	.authorName,
	.draftLabel {
	font-weight: bold;
	}
	.draftLabel {
	color: #999;
	display: none;
	}
	.date {
	justify-content: flex-end;
	margin-left: 5px;
	}
	a.date:link,
	a.date:visited {
	color: #666;
	}
	.actions {
	display: flex;
	padding-top: 0;
	}
	.action {
	cursor: pointer;
	margin-right: .5em;
	padding: .2em .6em .3em;
	}
	.danger {
	display: flex;
	flex: 1;
	justify-content: flex-end;
	}
	.editMessage {
	display: none;
	margin: .5em .7em;
	width: calc(100% - 1.4em - 2px);
	}
	.danger .action {
	margin-right: 0;
	}
	.container:not(.draft) .actions :not(.reply):not(.quote):not(.done) {
	display: none;
	}
	.draft .reply,
	.draft .quote,
	.draft .done {
	display: none;
	}
	.draft .draftLabel {
	display: inline;
	}
	.draft:not(.editing) .save,
	.draft:not(.editing) .cancel {
	display: none;
	}
	.editing .message,
	.editing .reply,
	.editing .quote,
	.editing .done,
	.editing .edit {
	display: none;
	}
	.editing .editMessage {
	background-color: #fff;
	display: block;
	}
	</style>
	<div class="container" id="container">
	<div class="header" id="header">
	<div class="headerLeft">
	<span class="authorName">[[comment.author.name]]</span>
	<span class="draftLabel">DRAFT</span>
	</div>
	<a class="date" href$="[[_computeLinkToComment(comment)]]" on-tap="_handleLinkTap">
	<gr-date-formatter date-str="[[comment.updated]]"></gr-date-formatter>
	</a>
	</div>
	<iron-autogrow-textarea
	id="editTextarea"
	class="editMessage"
	disabled="{{disabled}}"
	rows="4"
	bind-value="{{_editDraft}}"
	on-keyup="_handleTextareaKeyup"
	on-keydown="_handleTextareaKeydown"></iron-autogrow-textarea>
	<gr-linked-text class="message"
	pre
	content="[[comment.message]]"
	config="[[projectConfig.commentlinks]]"></gr-linked-text>
	<div class="actions" hidden$="[[!showActions]]">
	<button class="action reply" on-tap="_handleReply">Reply</button>
	<button class="action quote" on-tap="_handleQuote">Quote</button>
	<button class="action done" on-tap="_handleDone">Done</button>
	<button class="action edit" on-tap="_handleEdit">Edit</button>
	<button class="action save" on-tap="_handleSave"
	disabled$="[[_computeSaveDisabled(_editDraft)]]">Save</button>
	<button class="action cancel" on-tap="_handleCancel" hidden>Cancel</button>
	<div class="danger">
	<button class="action discard" on-tap="_handleDiscard">Discard</button>
	</div>
	</div>
	</div>
	</template>
	<script>
	(function() {
	'use strict';

	Polymer({
	is: 'gr-diff-comment',

	/**
	* Fired when the height of the comment changes.
	*
	* @event height-change
	*/

	/**
	* Fired when the Reply action is triggered.
	*
	* @event reply
	*/

	/**
	* Fired when the Done action is triggered.
	*
	* @event done
	*/

	/**
	* Fired when this comment is discarded.
	*
	* @event discard
	*/

	properties: {
	changeNum: String,
	comment: {
	type: Object,
	notify: true,
	},
	disabled: {
	type: Boolean,
	value: false,
	reflectToAttribute: true,
	},
	draft: {
	type: Boolean,
	value: false,
	observer: '_draftChanged',
	},
	editing: {
	type: Boolean,
	value: false,
	observer: '_editingChanged',
	},
	patchNum: String,
	showActions: Boolean,
	projectConfig: Object,

	_xhrPromise: Object, // Used for testing.
	_editDraft: String,
	},

	ready: function() {
	this._editDraft = (this.comment && this.comment.message) \|\| '';
	this.editing = this._editDraft.length == 0;
	},

	attached: function() {
	this._heightChanged();
	},

	save: function() {
	this.comment.message = this._editDraft;
	this.disabled = true;
	var endpoint = this._restEndpoint(this.comment.id);
	this._send('PUT', endpoint).then(function(req) {
	this.disabled = false;
	var comment = req.response;
	comment.__draft = true;
	// Maintain the ephemeral draft ID for identification by other
	// elements.
	if (this.comment.__draftID) {
	comment.__draftID = this.comment.__draftID;
	}
	this.comment = comment;
	this.editing = false;
	}.bind(this)).catch(function(err) {
	alert('Your draft couldn’t be saved. Check the console and contact ' +
	'the PolyGerrit team for assistance.');
	this.disabled = false;
	}.bind(this));
	},

	_heightChanged: function() {
	this.async(function() {
	this.fire('height-change', {height: this.offsetHeight},
	{bubbles: false});
	}.bind(this));
	},

	_draftChanged: function(draft) {
	this.$.container.classList.toggle('draft', draft);
	},

	_editingChanged: function(editing) {
	this.$.container.classList.toggle('editing', editing);
	if (editing) {
	var textarea = this.$.editTextarea.textarea;
	// Put the cursor at the end always.
	textarea.selectionStart = textarea.value.length;
	textarea.selectionEnd = textarea.selectionStart;
	this.async(function() {
	textarea.focus();
	}.bind(this));
	}
	if (this.comment && this.comment.id) {
	this.$$('.cancel').hidden = !editing;
	}
	this._heightChanged();
	},

	_computeLinkToComment: function(comment) {
	return '#' + comment.line;
	},

	_computeSaveDisabled: function(draft) {
	return draft == null \|\| draft.trim() == '';
	},

	_handleTextareaKeyup: function(e) {
	// TODO(andybons): This isn't always true, but I can't currently think
	// of a better metric.
	this._heightChanged();
	},

	_handleTextareaKeydown: function(e) {
	if (e.keyCode == 27) { // 'esc'
	this._handleCancel(e);
	}
	},

	_handleLinkTap: function(e) {
	e.preventDefault();
	var hash = this._computeLinkToComment(this.comment);
	// Don't add the hash to the window history if it's already there.
	// Otherwise you mess up expected back button behavior.
	if (window.location.hash == hash) { return; }
	// Change the URL but don’t trigger a nav event. Otherwise it will
	// reload the page.
	page.show(window.location.pathname + hash, null, false);
	},

	_handleReply: function(e) {
	this._preventDefaultAndBlur(e);
	this.fire('reply', {comment: this.comment}, {bubbles: false});
	},

	_handleQuote: function(e) {
	this._preventDefaultAndBlur(e);
	this.fire('reply', {comment: this.comment, quote: true},
	{bubbles: false});
	},

	_handleDone: function(e) {
	this._preventDefaultAndBlur(e);
	this.fire('done', {comment: this.comment}, {bubbles: false});
	},

	_handleEdit: function(e) {
	this._preventDefaultAndBlur(e);
	this._editDraft = this.comment.message;
	this.editing = true;
	},

	_handleSave: function(e) {
	this._preventDefaultAndBlur(e);
	this.save();
	},

	_handleCancel: function(e) {
	this._preventDefaultAndBlur(e);
	if (this.comment.message == null \|\| this.comment.message.length == 0) {
	this.fire('discard', null, {bubbles: false});
	return;
	}
	this._editDraft = this.comment.message;
	this.editing = false;
	},

	_handleDiscard: function(e) {
	this._preventDefaultAndBlur(e);
	if (!this.comment.__draft) {
	throw Error('Cannot discard a non-draft comment.');
	}
	this.disabled = true;
	var commentID = this.comment.id;
	if (!commentID) {
	this.fire('discard', null, {bubbles: false});
	return;
	}
	this._send('DELETE', this._restEndpoint(commentID)).then(function(req) {
	this.fire('discard', null, {bubbles: false});
	}.bind(this)).catch(function(err) {
	alert('Your draft couldn’t be deleted. Check the console and ' +
	'contact the PolyGerrit team for assistance.');
	this.disabled = false;
	}.bind(this));
	},

	_preventDefaultAndBlur: function(e) {
	e.preventDefault();
	Polymer.dom(e).rootTarget.blur();
	},

	_send: function(method, url) {
	var xhr = document.createElement('gr-request');
	var opts = {
	method: method,
	url: url,
	};
	if (method == 'PUT' \|\| method == 'POST') {
	opts.body = this.comment;
	}
	this._xhrPromise = xhr.send(opts);
	return this._xhrPromise;
	},

	_restEndpoint: function(id) {
	var path = '/changes/' + this.changeNum + '/revisions/' +
	this.patchNum + '/drafts';
	if (id) {
	path += '/' + id;
	}
	return path;
	},

	});
	})();
	</script>
	</dom-module>