Bug 1120899 - Extract the animationplayer meta-data UI to a refreshable component; r=bgrins

browser/devtools/animationinspector/animation-panel.js

@@ -138,6 +138,8 @@ function PlayerWidget(player, containerEl) {
 
   this.onStateChanged = this.onStateChanged.bind(this);
   this.onPlayPauseBtnClick = this.onPlayPauseBtnClick.bind(this);
+
+  this.metaDataComponent = new PlayerMetaDataHeader();
 }
 
 PlayerWidget.prototype = {
@@ -159,6 +161,7 @@ PlayerWidget.prototype = {
 
     this.stopTimelineAnimation();
     this.stopListeners();
+    this.metaDataComponent.destroy();
 
     this.el.remove();
     this.playPauseBtnEl = this.currentTimeEl = this.timeDisplayEl = null;
@@ -184,45 +187,8 @@ PlayerWidget.prototype = {
       }
     });
 
-    // Animation header
-    let titleEl = createNode({
-      parent: this.el,
-      attributes: {
-        "class": "animation-title"
-      }
-    });
-    let titleHTML = "";
-
-    // Name.
-    if (state.name) {
-      // Css animations have names.
-      titleHTML += L10N.getStr("player.animationNameLabel");
-      titleHTML += "<strong>" + state.name + "</strong>";
-    } else {
-      // Css transitions don't.
-      titleHTML += L10N.getStr("player.transitionNameLabel");
-    }
-
-    // Duration, delay and iteration count.
-    titleHTML += "<span class='meta-data'>";
-    titleHTML += L10N.getStr("player.animationDurationLabel");
-    titleHTML += "<strong>" + L10N.getFormatStr("player.timeLabel",
-      this.getFormattedTime(state.duration)) + "</strong>";
-
-    if (state.delay) {
-      titleHTML += L10N.getStr("player.animationDelayLabel");
-      titleHTML += "<strong>" + L10N.getFormatStr("player.timeLabel",
-        this.getFormattedTime(state.delay)) + "</strong>";
-    }
-
-    if (state.iterationCount !== 1) {
-      titleHTML += L10N.getStr("player.animationIterationCountLabel");
-      let count = state.iterationCount || L10N.getStr("player.infiniteIterationCount");
-      titleHTML += "<strong>" + count + "</strong>";
-    }
-
-    titleHTML += "</span>";
-    titleEl.innerHTML = titleHTML;
+    this.metaDataComponent.createMarkup(this.el);
+    this.metaDataComponent.render(state);
 
     // Timeline widget.
     let timelineEl = createNode({
@@ -296,18 +262,6 @@ PlayerWidget.prototype = {
     this.displayTime(state.currentTime);
   },
 
-  /**
-   * Format time as a string.
-   * @param {Number} time Defaults to the player's currentTime.
-   * @return {String} The formatted time, e.g. "10.55"
-   */
-  getFormattedTime: function(time) {
-    return (time/1000).toLocaleString(undefined, {
-      minimumFractionDigits: 2,
-      maximumFractionDigits: 2
-    });
-  },
-
   /**
    * Executed when the playPause button is clicked.
    * Note that tests may want to call this callback directly rather than
@@ -328,7 +282,8 @@ PlayerWidget.prototype = {
    */
   onStateChanged: function() {
     let state = this.player.state;
-    this.updateWidgetState(state.playState);
+    this.updateWidgetState(state);
+    this.metaDataComponent.render(state);
 
     switch (state.playState) {
       case "finished":
@@ -354,7 +309,7 @@ PlayerWidget.prototype = {
   pause: function() {
     // Switch to the right className on the element right away to avoid waiting
     // for the next state update to change the playPause icon.
-    this.updateWidgetState("paused");
+    this.updateWidgetState({playState: "paused"});
     return this.player.pause().then(() => {
       this.stopTimelineAnimation();
     });
@@ -368,12 +323,12 @@ PlayerWidget.prototype = {
   play: function() {
     // Switch to the right className on the element right away to avoid waiting
     // for the next state update to change the playPause icon.
-    this.updateWidgetState("running");
+    this.updateWidgetState({playState: "running"});
     this.startTimelineAnimation();
     return this.player.play();
   },
 
-  updateWidgetState: function(playState) {
+  updateWidgetState: function({playState}) {
     this.el.className = "player-widget " + playState;
   },
 
@@ -417,7 +372,7 @@ PlayerWidget.prototype = {
 
     // Set the time label value.
     this.timeDisplayEl.textContent = L10N.getFormatStr("player.timeLabel",
-      this.getFormattedTime(time));
+      L10N.numberWithDecimals(time / 1000, 2));
 
     // Set the timeline slider value.
     if (!state.iterationCount && time !== state.duration) {
@@ -437,6 +392,162 @@ PlayerWidget.prototype = {
   }
 };
 
+/**
+ * UI component responsible for displaying and updating the player meta-data:
+ * name, duration, iterations, delay.
+ * The parent UI component for this should drive its updates by calling
+ * render(state) whenever it wants the component to update.
+ */
+function PlayerMetaDataHeader() {
+  // Store the various state pieces we need to only refresh the UI when things
+  // change.
+  this.state = {};
+}
+
+PlayerMetaDataHeader.prototype = {
+  createMarkup: function(containerEl) {
+    // The main title element.
+    this.el = createNode({
+      parent: containerEl,
+      attributes: {
+        "class": "animation-title"
+      }
+    });
+
+    // Animation name (value hidden by default since transitions don't have names).
+    this.nameLabel = createNode({
+      parent: this.el,
+      nodeType: "span"
+    });
+
+    this.nameValue = createNode({
+      parent: this.el,
+      nodeType: "strong",
+      attributes: {
+        "style": "display:none;"
+      }
+    });
+
+    // Animation duration, delay and iteration container.
+    let metaData = createNode({
+      parent: this.el,
+      nodeType: "span",
+      attributes: {
+        "class": "meta-data"
+      }
+    });
+
+    // Animation duration.
+    this.durationLabel = createNode({
+      parent: metaData,
+      nodeType: "span"
+    });
+    this.durationLabel.textContent = L10N.getStr("player.animationDurationLabel");
+
+    this.durationValue = createNode({
+      parent: metaData,
+      nodeType: "strong"
+    });
+
+    // Animation delay (hidden by default since there may not be a delay).
+    this.delayLabel = createNode({
+      parent: metaData,
+      nodeType: "span",
+      attributes: {
+        "style": "display:none;"
+      }
+    });
+    this.delayLabel.textContent = L10N.getStr("player.animationDelayLabel");
+
+    this.delayValue = createNode({
+      parent: metaData,
+      nodeType: "strong"
+    });
+
+    // Animation iteration count (also hidden by default since we don't display
+    // single iterations).
+    this.iterationLabel = createNode({
+      parent: metaData,
+      nodeType: "span",
+      attributes: {
+        "style": "display:none;"
+      }
+    });
+    this.iterationLabel.textContent = L10N.getStr("player.animationIterationCountLabel");
+
+    this.iterationValue = createNode({
+      parent: metaData,
+      nodeType: "strong",
+      attributes: {
+        "style": "display:none;"
+      }
+    });
+  },
+
+  destroy: function() {
+    this.state = null;
+    this.el.remove();
+    this.el = null;
+    this.nameLabel = this.nameValue = null;
+    this.durationLabel = this.durationValue = null;
+    this.delayLabel = this.delayValue = null;
+    this.iterationLabel = this.iterationValue = null;
+  },
+
+  render: function(state) {
+    // Update the name if needed.
+    if (state.name !== this.state.name) {
+      if (state.name) {
+        // Css animations have names.
+        this.nameLabel.textContent = L10N.getStr("player.animationNameLabel");
+        this.nameValue.style.display = "inline";
+        this.nameValue.textContent = state.name;
+      } else {
+        // Css transitions don't.
+        this.nameLabel.textContent = L10N.getStr("player.transitionNameLabel");
+        this.nameValue.style.display = "none";
+      }
+    }
+
+    // update the duration value if needed.
+    if (state.duration !== this.state.duration) {
+      this.durationValue.textContent = L10N.getFormatStr("player.timeLabel",
+        L10N.numberWithDecimals(state.duration / 1000, 2));
+    }
+
+    // Update the delay if needed.
+    if (state.delay !== this.state.delay) {
+      if (state.delay) {
+        this.delayLabel.style.display = "inline";
+        this.delayValue.style.display = "inline";
+        this.delayValue.textContent = L10N.getFormatStr("player.timeLabel",
+          L10N.numberWithDecimals(state.delay / 1000, 2));
+      } else {
+        // Hide the delay elements if there is no delay defined.
+        this.delayLabel.style.display = "none";
+        this.delayValue.style.display = "none";
+      }
+    }
+
+    // Update the iterationCount if needed.
+    if (state.iterationCount !== this.state.iterationCount) {
+      if (state.iterationCount !== 1) {
+        this.iterationLabel.style.display = "inline";
+        this.iterationValue.style.display = "inline";
+        let count = state.iterationCount ||
+                    L10N.getStr("player.infiniteIterationCount");
+        this.iterationValue.innerHTML = count;
+      } else {
+        // Hide the iteration elements if iteration is 1.
+        this.iterationLabel.style.display = "none";
+        this.iterationValue.style.display = "none";
+      }
+    }
+
+    this.state = state;
+  }
+};
+
 /**
  * DOM node creation helper function.
  * @param {Object} Options to customize the node to be created.

browser/devtools/animationinspector/test/browser.ini

@@ -22,3 +22,4 @@ support-files =
 [browser_animation_timeline_animates.js]
 [browser_animation_timeline_waits_for_delay.js]
 [browser_animation_ui_updates_when_animation_changes.js]
+[browser_animation_ui_updates_when_animation_data_changes.js]

browser/devtools/animationinspector/test/browser_animation_iterationCount_hidden_by_default.js

@@ -13,12 +13,22 @@ add_task(function*() {
   info("Selecting a node with an animation that doesn't repeat");
   yield selectNode(".long", inspector);
   let widget = panel.playerWidgets[0];
-  let metaDataLabels = widget.el.querySelectorAll(".animation-title .meta-data strong");
-  is(metaDataLabels.length, 1, "Only the duration is shown");
+
+  ok(isNodeVisible(widget.metaDataComponent.durationValue),
+    "The duration value is shown");
+  ok(!isNodeVisible(widget.metaDataComponent.delayValue),
+    "The delay value is hidden");
+  ok(!isNodeVisible(widget.metaDataComponent.iterationValue),
+    "The iteration count is hidden");
 
   info("Selecting a node with an animation that repeats several times");
   yield selectNode(".delayed", inspector);
   widget = panel.playerWidgets[0];
-  let iterationLabel = widget.el.querySelectorAll(".animation-title .meta-data strong")[2];
-  is(iterationLabel.textContent, "10", "The iteration is shown");
+
+  ok(isNodeVisible(widget.metaDataComponent.durationValue),
+    "The duration value is shown");
+  ok(isNodeVisible(widget.metaDataComponent.delayValue),
+    "The delay value is shown");
+  ok(isNodeVisible(widget.metaDataComponent.iterationValue),
+    "The iteration count is shown");
 });

browser/devtools/animationinspector/test/browser_animation_playerWidgets_dont_show_time_after_duration.js

@@ -8,6 +8,8 @@
 // slider don't show values bigger than the animation duration (which would
 // happen if the local requestAnimationFrame loop didn't stop correctly).
 
+let L10N = new ViewHelpers.L10N();
+
 add_task(function*() {
   yield addTab(TEST_URL_ROOT + "doc_simple_animation.html");
   let {inspector, panel} = yield openAnimationInspector();
@@ -35,6 +37,6 @@ add_task(function*() {
   is(widget.currentTimeEl.value, front.state.duration,
     "The timeline slider has the right value");
   is(widget.timeDisplayEl.textContent,
-    widget.getFormattedTime(front.state.duration) + "s",
+    L10N.numberWithDecimals(front.state.duration / 1000, 2) + "s",
     "The timeline slider has the right value");
 });

browser/devtools/animationinspector/test/browser_animation_playerWidgets_meta_data.js

@@ -26,9 +26,11 @@ add_task(function*() {
   ok(metaDataEl, "The meta-data element exists");
 
   let metaDataEls = metaDataEl.querySelectorAll("strong");
-  is(metaDataEls.length, 2, "2 meta-data elements were found");
-  is(metaDataEls[0].textContent, "2.00s",
+  is(metaDataEls.length, 3, "3 meta-data elements were found");
+  is(metaDataEls[0].textContent, "2s",
     "The first meta-data is the duration, and is correct");
+  ok(!isNodeVisible(metaDataEls[1]),
+    "The second meta-data is hidden, since there's no delay on the animation");
 
   info("Select the node with the delayed animation");
   yield selectNode(".delayed", inspector);
@@ -40,10 +42,13 @@ add_task(function*() {
   metaDataEls = titleEl.querySelectorAll(".meta-data strong");
   is(metaDataEls.length, 3,
     "3 meta-data elements were found for the delayed animation");
-  is(metaDataEls[0].textContent, "3.00s",
+  is(metaDataEls[0].textContent, "3s",
     "The first meta-data is the duration, and is correct");
-  is(metaDataEls[1].textContent, "60.00s",
+  ok(isNodeVisible(metaDataEls[0]), "The duration is shown");
+  is(metaDataEls[1].textContent, "60s",
     "The second meta-data is the delay, and is correct");
+  ok(isNodeVisible(metaDataEls[1]), "The delay is shown");
   is(metaDataEls[2].textContent, "10",
     "The third meta-data is the iteration count, and is correct");
+  ok(isNodeVisible(metaDataEls[2]), "The iteration count is shown");
 });

browser/devtools/animationinspector/test/browser_animation_playerWidgets_state_after_pause.js

@@ -7,6 +7,8 @@
 // Test that once an animation is paused and its widget is refreshed, the right
 // initial time is displayed.
 
+let L10N = new ViewHelpers.L10N();
+
 add_task(function*() {
   yield addTab(TEST_URL_ROOT + "doc_simple_animation.html");
   let {inspector, panel} = yield openAnimationInspector();
@@ -25,6 +27,7 @@ add_task(function*() {
   widget = panel.playerWidgets[0];
   ok(widget.el.classList.contains("paused"), "The widget is still in paused mode");
   is(widget.timeDisplayEl.textContent,
-    widget.getFormattedTime(widget.player.state.currentTime) + "s",
+    L10N.numberWithDecimals(widget.player.state.currentTime / 1000, 2) + "s",
     "The initial time has been set to the player's");
 });
+

browser/devtools/animationinspector/test/browser_animation_timeline_waits_for_delay.js

@@ -20,5 +20,5 @@ add_task(function*() {
   is(timeline.value, 0, "The timeline is at 0 since the animation hasn't started");
 
   let timeLabel = widget.timeDisplayEl;
-  is(timeLabel.textContent, "0.00s", "The current time is 0");
+  is(timeLabel.textContent, "0s", "The current time is 0");
 });

browser/devtools/animationinspector/test/browser_animation_ui_updates_when_animation_data_changes.js

@@ -0,0 +1,45 @@
+/* vim: set ts=2 et sw=2 tw=80: */
+/* Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Verify that if the animation's duration, iterations or delay change in
+// content, then the widget reflects the changes.
+
+add_task(function*() {
+  yield addTab(TEST_URL_ROOT + "doc_simple_animation.html");
+  let {panel, inspector} = yield openAnimationInspector();
+
+  info("Select the test node");
+  yield selectNode(".animated", inspector);
+
+  info("Get the player widget");
+  let widget = panel.playerWidgets[0];
+
+  yield setStyle(widget, "animationDuration", "5.5s");
+  is(widget.metaDataComponent.durationValue.textContent, "5.50s",
+    "The widget shows the new duration");
+
+  yield setStyle(widget, "animationIterationCount", "300");
+  is(widget.metaDataComponent.iterationValue.textContent, "300",
+    "The widget shows the new iteration count");
+
+  yield setStyle(widget, "animationDelay", "45s");
+  is(widget.metaDataComponent.delayValue.textContent, "45s",
+    "The widget shows the new delay");
+});
+
+function* setStyle(widget, name, value) {
+  info("Change the animation style via the content DOM. Setting " +
+    name + " to " + value);
+  yield executeInContent("Test:SetNodeStyle", {
+    propertyName: name,
+    propertyValue: value
+  }, {
+    node: getNode(".animated")
+  });
+
+  info("Wait for the next state update");
+  yield widget.player.once(widget.player.AUTO_REFRESH_EVENT);
+}

browser/devtools/animationinspector/test/doc_frame_script.js

@@ -26,3 +26,21 @@ addMessageListener("Test:ToggleAnimationPlayer", function(msg) {
 
   sendAsyncMessage("Test:ToggleAnimationPlayer");
 });
+
+/**
+ * Set a given style property value on a node. This is useful to dynamically
+ * change an animation's duration or delay for instance.
+ * @param {Object} data
+ * - {String} propertyName The name of the property to set.
+ * - {String} propertyValue The value for the property.
+ * @param {Object} objects
+ * - {DOMNode} node The node to use
+ */
+addMessageListener("Test:SetNodeStyle", function(msg) {
+  let {propertyName, propertyValue} = msg.data;
+  let {node} = msg.objects;
+
+  node.style[propertyName] = propertyValue;
+
+  sendAsyncMessage("Test:SetNodeStyle");
+});

browser/devtools/animationinspector/test/doc_simple_animation.html

@@ -54,7 +54,7 @@
       left: 10px;
       background: red;
 
-      animation: simple-animation 2s
+      animation: simple-animation 2s;
     }
 
     .long {
@@ -62,7 +62,7 @@
       left: 10px;
       background: blue;
 
-      animation: simple-animation 120s
+      animation: simple-animation 120s;
     }
 
     @keyframes simple-animation {

browser/devtools/animationinspector/test/head.js

@@ -5,11 +5,12 @@
 "use strict";
 
 const Cu = Components.utils;
-let {gDevTools} = Cu.import("resource:///modules/devtools/gDevTools.jsm", {});
-let {devtools} = Cu.import("resource://gre/modules/devtools/Loader.jsm", {});
-let {Promise: promise} = Cu.import("resource://gre/modules/Promise.jsm", {});
-let TargetFactory = devtools.TargetFactory;
-let {console} = Components.utils.import("resource://gre/modules/devtools/Console.jsm", {});
+const {gDevTools} = Cu.import("resource:///modules/devtools/gDevTools.jsm", {});
+const {devtools} = Cu.import("resource://gre/modules/devtools/Loader.jsm", {});
+const {Promise: promise} = Cu.import("resource://gre/modules/Promise.jsm", {});
+const TargetFactory = devtools.TargetFactory;
+const {console} = Components.utils.import("resource://gre/modules/devtools/Console.jsm", {});
+const {ViewHelpers} = Cu.import("resource:///modules/devtools/ViewHelpers.jsm", {});
 
 // All tests are asynchronous
 waitForExplicitFinish();
@@ -263,12 +264,30 @@ function executeInContent(name, data={}, objects={}, expectResponse=true) {
  * Simulate a click on the playPause button of a playerWidget.
  */
 let togglePlayPauseButton = Task.async(function*(widget) {
+  let nextState = widget.player.state.playState === "running" ? "paused" : "running";
+
   // Note that instead of simulating a real event here, the callback is just
   // called. This is better because the callback returns a promise, so we know
   // when the player is paused, and we don't really care to test that simulating
   // a DOM event actually works.
-  yield widget.onPlayPauseBtnClick();
+  let onClicked = widget.onPlayPauseBtnClick();
+
+  // Verify that the button's state is changed immediately, even if it will be
+  // changed anyway with the next auto-refresh.
+  ok(widget.el.classList.contains(nextState),
+    "The button's state was changed in the UI before the request was sent");
+
+  yield onClicked;
 
   // Wait for the next sate change event to make sure the state is updated
   yield widget.player.once(widget.player.AUTO_REFRESH_EVENT);
 });
+
+/**
+ * Is the given node visible in the page (rendered in the frame tree).
+ * @param {DOMNode}
+ * @return {Boolean}
+ */
+function isNodeVisible(node) {
+  return !!node.getClientRects().length;
+}