panel stuff

2025-11-08 15:51:16 +08:00 · 2013-08-28 10:49:01 -05:00
parent 82d747f688
commit 3738aea6e3
6 changed files with 196 additions and 70 deletions
--- a/dist/framework.css
+++ b/dist/framework.css
@ -221,26 +221,36 @@ a.list-item {
  margin-bottom: 0;
  line-height: 1.3; }

-/* the container of panel content to show */
-.panel-content {
-  display: block;
-  width: 17em;
+[data-panel] {
+  display: none;
  min-height: 100%;
  max-height: 100%;
  position: absolute;
  top: 0;
  z-index: 0; }

+.panel-active {
+  display: block;
+  width: 270px; }
+
 header, main, footer {
+  z-index: 100;
  left: 0;
  right: 0;
-  -webkit-transition: -webkit-transform 200ms ease;
-  -moz-transition: -moz-transform 200ms ease;
-  transition: transform 200ms ease;
+  -webkit-transition: -webkit-transform 300ms ease;
+  -moz-transition: -moz-transform 300ms ease;
+  transition: transform 300ms ease;
  -webkit-transform: translate3d(0, 0, 0);
  -moz-transform: translate3d(0, 0, 0);
  transform: translate3d(0, 0, 0); }

+.panel-opened > section > header,
+.panel-opened > section > main,
+.panel-opened > section > footer {
+  -webkit-transform: translate3d(270px, 0, 0);
+  -moz-transform: translate3d(270px, 0, 0);
+  transform: translate3d(270px, 0, 0); }
+
 .ptr-capable {
  -webkit-user-drag: element; }

@ -524,7 +534,7 @@ main {
 a.list-item {
  color: #333333; }

-.panel-content {
+[data-panel] {
  background: #eeeeee;
  border-right: 1px solid #bbbbbb; }

--- a/example/panels.html
+++ b/example/panels.html
@ -5,32 +5,40 @@

    <!-- Sets initial viewport load and disables zooming  -->
    <meta name="viewport" content="initial-scale=1, maximum-scale=1, user-scalable=no">
-    <link href="//netdna.bootstrapcdn.com/font-awesome/3.2.1/css/font-awesome.css" rel="stylesheet">
+    <!--<link href="//netdna.bootstrapcdn.com/font-awesome/3.2.1/css/font-awesome.css" rel="stylesheet">-->
    <link rel="stylesheet" href="../../dist/framework.css">

  </head>
  <body>

-    <section class="panel-page-container">
-
-      <section data-panel="left-panel" class="panel-content">
-        Panel!
-      </section>
+    <section data-default-panel="my-left-panel">

      <header class="bar bar-header bar-dark">
+        <button class="button" data-toggle-panel="my-left-panel"></button>
        <h1 class="title">Panels</h1>
      </header>

      <main class="content-padded has-header">
-        <p>A whole bunch of content</p>
-        <a class="button button-primary" data-toggle-panel="left-panel" href="#">Panel</a>
+        <p><button class="button button-primary" data-toggle-panel="my-other-left-panel">Other Left Side Panel</button></p>
+        <p id="event-log"></p>
      </main>

+      <footer class="bar bar-footer bar-dark">
+        <h3 class="title">Panels</h3>
+      </footer>
+
+    </section>
+
+
+    <section data-panel="my-left-panel">
+      This is my default left side panel!
+    </section>
+
+    <section data-panel="my-other-left-panel">
+      This is my other left side panel!
    </section>


-    <script src="../../js/framework/framework-gestures.js"></script>
-    <script src="../../js/framework/framework-events.js"></script>
    <script src="../../js/framework/framework-panel.js"></script>
  </body>
 </html>
--- a/js/framework/framework-panel.js
+++ b/js/framework/framework-panel.js
@ -1,55 +1,153 @@
 (function(window, document, framework) {

  var 
-  el,
-  styleElement,
-  isPanelOpen;
+  x,
+  lockInWidthStyles,
+  isLockInWidthSet,
+  isPanelOpen,
+  panelReferences = {},
+  timeout,
+  className,

-  function onTap(e) {
-    if(e.target) {
-      el = e.target;
-      if(el.dataset.togglePanel) {
-        return togglePanel(e, el, el.dataset.togglePanel);
-      }
-      while(el.parentElement) {
-        el = el.parentElement;
-        if(el.dataset.togglePanel) {
-          return togglePanel(e, el, el.dataset.togglePanel);
-        }
-      }
-    }
-  }
+  PANEL_ACTIVE = "panel-active",
+  PANEL_OPENED = "panel-opened";

-  function togglePanel(e, el, panelName) {
-    var styles = "";

+  function click(e) {
+    if(e.target.dataset.togglePanel) {
+      logEvent("click");
      if(isPanelOpen) {
-      // there is a panel already open, so close it
-      isPanelOpen = false;
+        // there's a panel open, close it if the page location changed
+        closePanel();
      } else {
-      // open the panel
-      styles = "section .panel-content ~ * { width:" + document.width + "px !important; \
-                -webkit-transform: translate3d(17em,0,0); \
-                -moz-transform: translate3d(17em,0,0); \
-                transform: translate3d(17em,0,0); }";
+        openPanel(e.target.dataset.togglePanel);
+      }
+      return true;
+    }
+  }
+
+  function touchEnd(e) {
+    if(click(e)) {
+      e.preventDefault();
+      e.stopPropagation();
+      return false;
+    }
+  }
+
+  function autoClose() {
+    if(isPanelOpen) {
+      logEvent("autoClose");
+      // there's a panel open, close it if the page location changed
+      closePanel();
+    }
+  }
+
+  function openPanel(panelId) {
+    logEvent("openPanel: " + panelId);
+
+    // see if there is an element with this id
+    var panel = getPanelElement(panelId);
+    if(panel) {
+      // this element is a panel, open it!
+
+      // find all the panels that are or were active
+      var panelsActive = document.getElementsByClassName(PANEL_ACTIVE);
+
+      // remove the panel-active css classes from each of the previously opened panels
+      for(x=0; x<panelsActive.length; x++) {
+        className = panelsActive[x].className.replace(PANEL_ACTIVE, "").trim();
+        panelsActive[x].className = className;
+      }
+
+      // open the panel we want open by adding the panel-active css classes
+      panel.className += " " + PANEL_ACTIVE;
+
+      // manually lock in all the widths of the page which the panel will slide over
+      // do all of this in one DOM manipulation
+      // This makes it easy to modify all of the elements in one call, 
+      // and also undo all of the element widths in one call
+      // the css added below makes something like:  #my-panel ~ * {width: 420px !important}
+      // basically any sibling elements to the panel should lock in the document width
+      setLockInWidthStyles();
+
+      // add to <body> that a panel is open
+      document.body.className += " " + PANEL_OPENED;
+
+      // remember that a panel is currently open
      isPanelOpen = true;
    }
-
-    setStyles(styles);
  }

-  function setStyles(styles) {
-    // get the <style> from the head that will be used by the panel
-    if(!styleElement) {
-      styleElement = document.createElement("style");
-      styleElement.id = "panel-styles";
-      styleElement.innerHTML = styles;
-      document.head.appendChild(styleElement);
+  function closePanel() {
+    logEvent("closePanel");
+
+    // there is a panel already open, so close it
+    isPanelOpen = false;
+
+    // note: do not remove the panel-active class from panel
+    // the panel should stay displayed as it panel closes
+    // find the element with panel-open class
+    var openedPanels = document.getElementsByClassName(PANEL_OPENED);
+
+    // remove the panel-opened css classes from each of the previously opened panels
+    for(x=0; x<openedPanels.length; x++) {
+      // if this panel is the same last opened panel then don't remove the css class yet
+      className = openedPanels[x].className.replace(PANEL_OPENED, "").trim();
+      openedPanels[x].className = className;
+    }
+
+    // remove from <body> that no panels should be open
+    className = document.body.className.replace(PANEL_OPENED, "").trim();
+    document.body.className = className;
+
+    // remove the locked in widths
+    timeout = setTimeout(removeLockInWidthStyles, 300);
+  }
+
+  function setLockInWidthStyles() {
+    if(isLockInWidthSet) return;
+
+    clearTimeout(timeout);
+
+    var styles = "section>header,section>main,section>footer {width:" + document.width + "px !important}";
+
+    if(!lockInWidthStyles) {
+      lockInWidthStyles = document.createElement("style");
+      lockInWidthStyles.innerHTML = styles;
+      document.head.appendChild(lockInWidthStyles);
    } else {
-      styleElement.innerHTML = styles;
+      lockInWidthStyles.innerHTML = styles;
    }
+    isLockInWidthSet = true;
  }

-  framework.on("click", onTap);
+  function removeLockInWidthStyles() {
+    lockInWidthStyles.innerHTML = "";
+    isLockInWidthSet = false;
+  }
+
+  function getPanelElement(panelId) {
+    // used to minimize DOM lookups
+    if( !panelReferences[panelId] ) {
+      panelReferences[panelId] = document.querySelector( "[data-panel='" + panelId + "']" );
+    }
+    return panelReferences[panelId];
+  }
+
+  var logEvent = function(data) {
+    var e = document.getElementById('event-log');
+    var l = document.createElement('div');
+    l.innerHTML = data;
+    if(e.childNodes.length > 10) {
+      e.innerHTML = "";
+    }
+    e.appendChild(l);
+  }
+
+  window.addEventListener('click', click, false);
+  window.addEventListener('touchend', touchEnd, false);
+
+  window.addEventListener("resize", autoClose, false);
+  window.addEventListener("popstate", autoClose, false);

 })(this, document, FM = this.FM || {});
--- a/scss/framework/_structure-variables.scss
+++ b/scss/framework/_structure-variables.scss
@ -26,4 +26,5 @@ $listItemBorder: 1px solid #ddd;


 // Panels
-$panelViewWidth: 17em;
+$panelOpenWidth: 270px;
+$panelAnimationSpeed: 300ms;
--- a/scss/framework/structure/_panel.scss
+++ b/scss/framework/structure/_panel.scss
@ -1,27 +1,36 @@

-
-/* the container of panel content to show */
-.panel-content {
-  display: block;
-  width: $panelViewWidth;
+[data-panel] {
+  display: none;
  min-height: 100%;
  max-height: 100%;
  position: absolute;
  top: 0;
  z-index: 0;
-
+}
+.panel-active {
+  display: block;
+  width: $panelOpenWidth;
 }

 header, main, footer {
-
+  z-index: 100;
  left: 0;
  right: 0;
  
-  -webkit-transition: -webkit-transform 200ms ease;
-  -moz-transition: -moz-transform 200ms ease;
-  transition: transform 200ms ease;
+  -webkit-transition: -webkit-transform $panelAnimationSpeed ease;
+  -moz-transition: -moz-transform $panelAnimationSpeed ease;
+  transition: transform $panelAnimationSpeed ease;

-  -webkit-transform: translate3d(0,0,0);
-  -moz-transform: translate3d(0,0,0);
-  transform: translate3d(0,0,0);
+  -webkit-transform: translate3d(0, 0, 0);
+  -moz-transform: translate3d(0, 0, 0);
+  transform: translate3d(0, 0, 0);
+}
+
+.panel-opened > section > header,
+.panel-opened > section > main,
+.panel-opened > section > footer 
+{
+    -webkit-transform: translate3d($panelOpenWidth, 0,0 );
+    -moz-transform: translate3d($panelOpenWidth, 0,0 );
+    transform: translate3d($panelOpenWidth, 0,0 );
 }
--- a/scss/framework/theme/_panel.scss
+++ b/scss/framework/theme/_panel.scss
@ -1,5 +1,5 @@

-.panel-content {
+[data-panel] {
  background: $panelBackgroundColor;
  border-right: 1px solid $panelInsetBorderColor;
 }