Merge pull request #1740 from hmhealey/plt730

PLT-730/PLT-731 Added remaining mobile UI V2 components

6 files changed, 224 insertions, 23 deletions

diff --git a/web/react/components/posts_view.jsx b/web/react/components/posts_view.jsx
index e116fdeea..a28efbd04 100644
--- a/web/react/components/posts_view.jsx
+++ b/web/react/components/posts_view.jsx
@@ -7,6 +7,7 @@ import * as EventHelpers from '../dispatcher/event_helpers.jsx';
 import * as Utils from '../utils/utils.jsx';
 import Post from './post.jsx';
 import Constants from '../utils/constants.jsx';
+import DelayedAction from '../utils/delayed_action.jsx';
 const Preferences = Constants.Preferences;
 
 export default class PostsView extends React.Component {
@@ -15,18 +16,26 @@ export default class PostsView extends React.Component {
 
         this.updateState = this.updateState.bind(this);
         this.handleScroll = this.handleScroll.bind(this);
+        this.handleScrollStop = this.handleScrollStop.bind(this);
         this.isAtBottom = this.isAtBottom.bind(this);
         this.loadMorePostsTop = this.loadMorePostsTop.bind(this);
         this.loadMorePostsBottom = this.loadMorePostsBottom.bind(this);
         this.createPosts = this.createPosts.bind(this);
         this.updateScrolling = this.updateScrolling.bind(this);
         this.handleResize = this.handleResize.bind(this);
+        this.scrollToBottom = this.scrollToBottom.bind(this);
 
         this.jumpToPostNode = null;
         this.wasAtBottom = true;
         this.scrollHeight = 0;
 
-        this.state = {displayNameType: PreferenceStore.get(Preferences.CATEGORY_DISPLAY_SETTINGS, 'name_format', 'false')};
+        this.scrollStopAction = new DelayedAction(this.handleScrollStop);
+
+        this.state = {
+            displayNameType: PreferenceStore.get(Preferences.CATEGORY_DISPLAY_SETTINGS, 'name_format', 'false'),
+            isScrolling: false,
+            topPostId: null
+        };
     }
     static get SCROLL_TYPE_FREE() {
         return 1;
@@ -69,6 +78,55 @@ export default class PostsView extends React.Component {
         this.props.postViewScrolled(this.isAtBottom());
         this.prevScrollHeight = this.refs.postlist.scrollHeight;
         this.prevOffsetTop = this.jumpToPostNode.offsetTop;
+
+        this.updateFloatingTimestamp();
+
+        if (!this.state.isScrolling) {
+            this.setState({
+                isScrolling: true
+            });
+        }
+
+        this.scrollStopAction.fireAfter(1000);
+    }
+    handleScrollStop() {
+        this.setState({
+            isScrolling: false
+        });
+    }
+    updateFloatingTimestamp() {
+        // skip this in non-mobile view since that's when the timestamp is visible
+        if ($(window).width() > 768) {
+            return;
+        }
+
+        if (this.props.postList) {
+            // iterate through posts starting at the bottom since users are more likely to be viewing newer posts
+            for (let i = 0; i < this.props.postList.order.length; i++) {
+                const id = this.props.postList.order[i];
+                const element = ReactDOM.findDOMNode(this.refs[id]);
+
+                if (!element || element.offsetTop + element.clientHeight <= this.refs.postlist.scrollTop) {
+                    // this post is off the top of the screen so the last one is at the top of the screen
+                    let topPostId;
+
+                    if (i > 0) {
+                        topPostId = this.props.postList.order[i - 1];
+                    } else {
+                        // the first post we look at should always be on the screen, but handle that case anyway
+                        topPostId = id;
+                    }
+
+                    if (topPostId !== this.state.topPostId) {
+                        this.setState({
+                            topPostId
+                        });
+                    }
+
+                    break;
+                }
+            }
+        }
     }
     loadMorePostsTop() {
         this.props.loadMorePostsTopClicked();
@@ -226,9 +284,7 @@ export default class PostsView extends React.Component {
     }
     updateScrolling() {
         if (this.props.scrollType === PostsView.SCROLL_TYPE_BOTTOM) {
-            window.requestAnimationFrame(() => {
-                this.refs.postlist.scrollTop = this.refs.postlist.scrollHeight;
-            });
+            this.scrollToBottom();
         } else if (this.props.scrollType === PostsView.SCROLL_TYPE_NEW_MESSAGE) {
             window.requestAnimationFrame(() => {
                 // If separator exists scroll to it. Otherwise scroll to bottom.
@@ -278,6 +334,11 @@ export default class PostsView extends React.Component {
     handleResize() {
         this.updateScrolling();
     }
+    scrollToBottom() {
+        window.requestAnimationFrame(() => {
+            this.refs.postlist.scrollTop = this.refs.postlist.scrollHeight;
+        });
+    }
     componentDidMount() {
         if (this.props.postList != null) {
             this.updateScrolling();
@@ -322,6 +383,12 @@ export default class PostsView extends React.Component {
         if (nextState.displayNameType !== this.state.displayNameType) {
             return true;
         }
+        if (this.state.topPostId !== nextState.topPostId) {
+            return true;
+        }
+        if (this.state.isScrolling !== nextState.isScrolling) {
+            return true;
+        }
 
         return false;
     }
@@ -377,20 +444,36 @@ export default class PostsView extends React.Component {
             }
         }
 
+        let topPost = null;
+        if (this.state.topPostId) {
+            topPost = this.props.postList.posts[this.state.topPostId];
+        }
+
         return (
-            <div
-                ref='postlist'
-                className={'post-list-holder-by-time ' + activeClass}
-                onScroll={this.handleScroll}
-            >
-                <div className='post-list__table'>
-                    <div
-                        ref='postlistcontent'
-                        className='post-list__content'
-                    >
-                        {moreMessagesTop}
-                        {postElements}
-                        {moreMessagesBottom}
+            <div className={activeClass}>
+                <FloatingTimestamp
+                    isScrolling={this.state.isScrolling}
+                    post={topPost}
+                />
+                <ScrollToBottomArrows
+                    isScrolling={this.state.isScrolling}
+                    atBottom={this.wasAtBottom}
+                    onClick={this.scrollToBottom}
+                />
+                <div
+                    ref='postlist'
+                    className='post-list-holder-by-time'
+                    onScroll={this.handleScroll}
+                >
+                    <div className='post-list__table'>
+                        <div
+                            ref='postlistcontent'
+                            className='post-list__content'
+                        >
+                            {moreMessagesTop}
+                            {postElements}
+                            {moreMessagesBottom}
+                        </div>
                     </div>
                 </div>
             </div>
@@ -414,3 +497,46 @@ PostsView.propTypes = {
     messageSeparatorTime: React.PropTypes.number,
     postsToHighlight: React.PropTypes.object
 };
+
+function FloatingTimestamp({isScrolling, post}) {
+    // only show on mobile
+    if ($(window).width() > 768) {
+        return <noscript />;
+    }
+
+    if (!post) {
+        return <noscript />;
+    }
+
+    const dateString = Utils.getDateForUnixTicks(post.create_at).toDateString();
+
+    let className = 'post-list__timestamp';
+    if (isScrolling) {
+        className += ' scrolling';
+    }
+
+    return (
+        <div className={className}>
+            <span>{dateString}</span>
+        </div>
+    );
+}
+
+function ScrollToBottomArrows({isScrolling, atBottom, onClick}) {
+    // only show on mobile
+    if ($(window).width() > 768) {
+        return <noscript />;
+    }
+
+    let className = 'post-list__arrows';
+    if (isScrolling && !atBottom) {
+        className += ' scrolling';
+    }
+
+    return (
+        <div
+            className={className}
+            onClick={onClick}
+        />
+    );
+}
diff --git a/web/react/utils/delayed_action.jsx b/web/react/utils/delayed_action.jsx
new file mode 100644
index 000000000..4f6239ad0
--- /dev/null
+++ b/web/react/utils/delayed_action.jsx
@@ -0,0 +1,27 @@
+// Copyright (c) 2015 Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+export default class DelayedAction {
+    constructor(action) {
+        this.action = action;
+
+        this.timer = -1;
+
+        // bind fire since it doesn't get passed the correct this value with setTimeout
+        this.fire = this.fire.bind(this);
+    }
+
+    fire() {
+        this.action();
+
+        this.timer = -1;
+    }
+
+    fireAfter(timeout) {
+        if (this.timer >= 0) {
+            window.clearTimeout(this.timer);
+        }
+
+        this.timer = window.setTimeout(this.fire, timeout);
+    }
+}
diff --git a/web/react/utils/utils.jsx b/web/react/utils/utils.jsx
index 52d88c5b9..24d27b10a 100644
--- a/web/react/utils/utils.jsx
+++ b/web/react/utils/utils.jsx
@@ -567,7 +567,7 @@ export function applyTheme(theme) {
     }
 
     if (theme.sidebarHeaderBg) {
-        changeCss('.sidebar--left .team__header, .sidebar--menu .team__header', 'background:' + theme.sidebarHeaderBg, 1);
+        changeCss('.sidebar--left .team__header, .sidebar--menu .team__header, .post-list__timestamp', 'background:' + theme.sidebarHeaderBg, 1);
         changeCss('.modal .modal-header', 'background:' + theme.sidebarHeaderBg, 1);
         changeCss('#navbar .navbar-default', 'background:' + theme.sidebarHeaderBg, 1);
         changeCss('@media(max-width: 768px){.search-bar__container', 'background:' + theme.sidebarHeaderBg, 1);
@@ -575,7 +575,7 @@ export function applyTheme(theme) {
     }
 
     if (theme.sidebarHeaderTextColor) {
-        changeCss('.sidebar--left .team__header .header__info, .sidebar--menu .team__header .header__info', 'color:' + theme.sidebarHeaderTextColor, 1);
+        changeCss('.sidebar--left .team__header .header__info, .sidebar--menu .team__header .header__info, .post-list__timestamp', 'color:' + theme.sidebarHeaderTextColor, 1);
         changeCss('.sidebar--left .team__header .navbar-right .dropdown__icon, .sidebar--menu .team__header .navbar-right .dropdown__icon', 'fill:' + theme.sidebarHeaderTextColor, 1);
         changeCss('.sidebar--left .team__header .user__name, .sidebar--menu .team__header .user__name', 'color:' + changeOpacity(theme.sidebarHeaderTextColor, 0.8), 1);
         changeCss('.sidebar--left .team__header:hover .user__name, .sidebar--menu .team__header:hover .user__name', 'color:' + theme.sidebarHeaderTextColor, 1);
diff --git a/web/sass-files/sass/partials/_post.scss b/web/sass-files/sass/partials/_post.scss
index 67b28381f..c2df7b769 100644
--- a/web/sass-files/sass/partials/_post.scss
+++ b/web/sass-files/sass/partials/_post.scss
@@ -211,6 +211,10 @@ body.ios {
 	overflow-y: hidden;
 	height: 100%;
 
+	.inactive {
+		display: none;
+	}
+
 	.post-list-holder-by-time {
 		background: #fff;
 		overflow-y: scroll;
@@ -222,9 +226,6 @@ body.ios {
 		&::-webkit-scrollbar {
 			width: 0px !important;
 		}
-		&.inactive {
-			display: none;
-		}
 		&.active {
 			display: inline;
 		}
@@ -247,6 +248,50 @@ body.ios {
 	}
 }
 
+.post-list__timestamp {
+	position: absolute;
+	top: 8px;
+	left: 50%;
+	z-index: 50;
+	width: 120px;
+	text-align: center;
+	background: $primary-color;
+	color: #fff;
+	@include border-radius(3px);
+	font-size: 12px;
+	line-height: 25px;
+	margin-left: -60px;
+	-webkit-font-smoothing: initial;
+	@include single-transition(all, 0.3s, ease);
+	@include translateY(-45px);
+	@include opacity(0);
+	display: none;
+
+	&.scrolling {
+		@include single-transition(all, 0.3s, ease);
+		@include translateY(0);
+		@include opacity(0.8);
+	}
+}
+
+.post-list__arrows {
+	background: url('../images/postArrows.png') center;
+	@include background-size(28px 28px);
+	background-repeat: no-repeat;
+	width: 40px;
+	height: 40px;
+	position: absolute;
+	bottom: 50px;
+	right: 5px;
+	z-index: 50;
+	@include opacity(0);
+	@include single-transition(all, 0.3s);
+
+	&.scrolling {
+		@include opacity(1);
+	}
+}
+
 .post-create__container {
 	form {
 		width: 100%;
diff --git a/web/sass-files/sass/partials/_responsive.scss b/web/sass-files/sass/partials/_responsive.scss
index e1ceea3ad..635b46077 100644
--- a/web/sass-files/sass/partials/_responsive.scss
+++ b/web/sass-files/sass/partials/_responsive.scss
@@ -242,6 +242,9 @@
             }
         }
     }
+    .post-list__timestamp {
+        display: block;
+    }
     .signup-team__container {
         padding: 30px 0;
         margin-bottom: 30px;
@@ -800,4 +803,4 @@
             font-size: 2em;
         }
     }
-}
\ No newline at end of file
+}
diff --git a/web/static/images/postArrows.png b/web/static/images/postArrows.png
new file mode 100644
index 000000000..7b5919fc3
--- /dev/null
+++ b/web/static/images/postArrows.png