New: Scroll long book titles

frontend/src/Book/Details/BookDetails.js

@@ -14,6 +14,8 @@ import Icon from 'Components/Icon';
 import Label from 'Components/Label';
 import IconButton from 'Components/Link/IconButton';
 import LoadingIndicator from 'Components/Loading/LoadingIndicator';
+import Marquee from 'Components/Marquee';
+import Measure from 'Components/Measure';
 import MonitorToggleButton from 'Components/MonitorToggleButton';
 import PageContent from 'Components/Page/PageContent';
 import PageContentBody from 'Components/Page/PageContentBody';
@@ -57,7 +59,8 @@ class BookDetails extends Component {
       isRetagModalOpen: false,
       isEditBookModalOpen: false,
       isDeleteBookModalOpen: false,
-      selectedTabIndex: 0
+      selectedTabIndex: 0,
+      titleWidth: 0
     };
   }
 
@@ -103,6 +106,10 @@ class BookDetails extends Component {
     this.setState({ selectedTabIndex: index });
   }
 
+  onTitleMeasure = ({ width }) => {
+    this.setState({ titleWidth: width });
+  }
+
   //
   // Render
 
@@ -141,9 +148,12 @@ class BookDetails extends Component {
       isRetagModalOpen,
       isEditBookModalOpen,
       isDeleteBookModalOpen,
-      selectedTabIndex
+      selectedTabIndex,
+      titleWidth
     } = this.state;
 
+    const marqueeWidth = (titleWidth - 150);
+
     return (
       <PageContent title={title}>
         <PageToolbar>
@@ -217,51 +227,53 @@ class BookDetails extends Component {
               />
 
               <div className={styles.info}>
-                <div className={styles.titleRow}>
-                  <div className={styles.titleContainer}>
+                <Measure onMeasure={this.onTitleMeasure}>
+                  <div className={styles.titleRow}>
+                    <div className={styles.titleContainer}>
 
-                    <div className={styles.toggleMonitoredContainer}>
-                      <MonitorToggleButton
-                        className={styles.monitorToggleButton}
-                        monitored={monitored}
-                        isSaving={isSaving}
-                        size={40}
-                        onPress={onMonitorTogglePress}
+                      <div className={styles.toggleMonitoredContainer}>
+                        <MonitorToggleButton
+                          className={styles.monitorToggleButton}
+                          monitored={monitored}
+                          isSaving={isSaving}
+                          size={40}
+                          onPress={onMonitorTogglePress}
+                        />
+                      </div>
+
+                      <div className={styles.title} style={{ width: marqueeWidth }}>
+                        <Marquee text={title} />
+                      </div>
+
+                    </div>
+
+                    <div className={styles.bookNavigationButtons}>
+                      <IconButton
+                        className={styles.bookNavigationButton}
+                        name={icons.ARROW_LEFT}
+                        size={30}
+                        title={`Go to ${previousBook.title}`}
+                        to={`/book/${previousBook.titleSlug}`}
+                      />
+
+                      <IconButton
+                        className={styles.bookNavigationButton}
+                        name={icons.ARROW_UP}
+                        size={30}
+                        title={`Go to ${author.authorName}`}
+                        to={`/author/${author.titleSlug}`}
+                      />
+
+                      <IconButton
+                        className={styles.bookNavigationButton}
+                        name={icons.ARROW_RIGHT}
+                        size={30}
+                        title={`Go to ${nextBook.title}`}
+                        to={`/book/${nextBook.titleSlug}`}
                       />
                     </div>
-
-                    <div className={styles.title}>
-                      {title}
-                    </div>
-
                   </div>
-
-                  <div className={styles.bookNavigationButtons}>
-                    <IconButton
-                      className={styles.bookNavigationButton}
-                      name={icons.ARROW_LEFT}
-                      size={30}
-                      title={`Go to ${previousBook.title}`}
-                      to={`/book/${previousBook.titleSlug}`}
-                    />
-
-                    <IconButton
-                      className={styles.bookNavigationButton}
-                      name={icons.ARROW_UP}
-                      size={30}
-                      title={`Go to ${author.authorName}`}
-                      to={`/author/${author.titleSlug}`}
-                    />
-
-                    <IconButton
-                      className={styles.bookNavigationButton}
-                      name={icons.ARROW_RIGHT}
-                      size={30}
-                      title={`Go to ${nextBook.title}`}
-                      to={`/book/${nextBook.titleSlug}`}
-                    />
-                  </div>
-                </div>
+                </Measure>
 
                 <div className={styles.details}>
                   <div>
@@ -497,6 +509,7 @@ BookDetails.propTypes = {
   author: PropTypes.object,
   previousBook: PropTypes.object,
   nextBook: PropTypes.object,
+  isSmallScreen: PropTypes.bool.isRequired,
   onMonitorTogglePress: PropTypes.func.isRequired,
   onRefreshPress: PropTypes.func,
   onSearchPress: PropTypes.func.isRequired

frontend/src/Components/Marquee.js

@@ -0,0 +1,181 @@
+import PropTypes from 'prop-types';
+import React, { Component } from 'react';
+
+const FPS = 20;
+const STEP = 1;
+const TIMEOUT = 1 / FPS * 1000;
+
+class Marquee extends Component {
+
+  static propTypes = {
+    text: PropTypes.string,
+    title: PropTypes.string,
+    hoverToStop: PropTypes.bool,
+    loop: PropTypes.bool,
+    className: PropTypes.string
+  };
+
+  static defaultProps = {
+    text: '',
+    title: '',
+    hoverToStop: true,
+    loop: false
+  };
+
+  state = {
+    animatedWidth: 0,
+    overflowWidth: 0,
+    direction: 0
+  };
+
+  componentDidMount() {
+    this.measureText();
+
+    if (this.props.hoverToStop) {
+      this.startAnimation();
+    }
+  }
+
+  componentWillReceiveProps(nextProps) {
+    if (this.props.text.length !== nextProps.text.length) {
+      clearTimeout(this.marqueeTimer);
+      this.setState({ animatedWidth: 0, direction: 0 });
+    }
+  }
+
+  componentDidUpdate() {
+    this.measureText();
+
+    if (this.props.hoverToStop) {
+      this.startAnimation();
+    }
+  }
+
+  componentWillUnmount() {
+    clearTimeout(this.marqueeTimer);
+  }
+
+  onHandleMouseEnter = () => {
+    if (this.props.hoverToStop) {
+      clearTimeout(this.marqueeTimer);
+    } else if (this.state.overflowWidth > 0) {
+      this.startAnimation();
+    }
+  }
+
+  onHandleMouseLeave = () => {
+    if (this.props.hoverToStop && this.state.overflowWidth > 0) {
+      this.startAnimation();
+    } else {
+      clearTimeout(this.marqueeTimer);
+      this.setState({ animatedWidth: 0 });
+    }
+  }
+
+  startAnimation = () => {
+    clearTimeout(this.marqueeTimer);
+    const isLeading = this.state.animatedWidth === 0;
+    const timeout = isLeading ? 0 : TIMEOUT;
+
+    const animate = () => {
+      const { overflowWidth } = this.state;
+      let animatedWidth = this.state.animatedWidth;
+      let direction = this.state.direction;
+
+      if (direction === 0) {
+        animatedWidth = this.state.animatedWidth + STEP;
+      } else {
+        animatedWidth = this.state.animatedWidth - STEP;
+      }
+
+      const isRoundOver = animatedWidth < 0;
+      const endOfText = animatedWidth > overflowWidth;
+
+      if (endOfText) {
+        direction = direction === 1;
+      }
+
+      if (isRoundOver) {
+        if (this.props.loop) {
+          direction = direction === 0;
+        } else {
+          return;
+        }
+      }
+
+      this.setState({ animatedWidth, direction });
+      this.marqueeTimer = setTimeout(animate, TIMEOUT);
+    };
+
+    this.marqueeTimer = setTimeout(animate, timeout);
+  }
+
+  measureText = () => {
+    const container = this.container;
+    const node = this.text;
+
+    if (container && node) {
+      const containerWidth = container.offsetWidth;
+      const textWidth = node.offsetWidth;
+      const overflowWidth = textWidth - containerWidth;
+
+      if (overflowWidth !== this.state.overflowWidth) {
+        this.setState({ overflowWidth });
+      }
+    }
+  }
+
+  render() {
+    const style = {
+      position: 'relative',
+      right: this.state.animatedWidth,
+      whiteSpace: 'nowrap'
+    };
+
+    if (this.state.overflowWidth < 0) {
+      return (
+        <div
+          ref={(el) => {
+            this.container = el;
+          }}
+          className={`ui-marquee ${this.props.className}`}
+          style={{ overflow: 'hidden' }}
+        >
+          <span
+            ref={(el) => {
+              this.text = el;
+            }}
+            style={style}
+            title={(this.props.title && (this.props.text !== this.props.title)) ? `Original Title: ${this.props.title}` : this.props.text}
+          >
+            {this.props.text}
+          </span>
+        </div>
+      );
+    }
+
+    return (
+      <div
+        ref={(el) => {
+          this.container = el;
+        }}
+        className={`ui-marquee ${this.props.className}`.trim()}
+        style={{ overflow: 'hidden' }}
+        onMouseEnter={this.onHandleMouseEnter}
+        onMouseLeave={this.onHandleMouseLeave}
+      >
+        <span
+          ref={(el) => {
+            this.text = el;
+          }}
+          style={style}
+          title={(this.props.title && (this.props.text !== this.props.title)) ? `Original Title: ${this.props.title}` : this.props.text}
+        >
+          {this.props.text}
+        </span>
+      </div>
+    );
+  }
+}
+
+export default Marquee;