Add m-esr52 at 52.6.0

1 files changed, 423 insertions, 0 deletions

diff --git a/devtools/client/performance/views/overview.js b/devtools/client/performance/views/overview.js
new file mode 100644
index 000000000..f45a6d844
--- /dev/null
+++ b/devtools/client/performance/views/overview.js
@@ -0,0 +1,423 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+/* import-globals-from ../performance-controller.js */
+/* import-globals-from ../performance-view.js */
+"use strict";
+
+// No sense updating the overview more often than receiving data from the
+// backend. Make sure this isn't lower than DEFAULT_TIMELINE_DATA_PULL_TIMEOUT
+// in devtools/server/actors/timeline.js
+
+// The following units are in milliseconds.
+const OVERVIEW_UPDATE_INTERVAL = 200;
+const FRAMERATE_GRAPH_LOW_RES_INTERVAL = 100;
+const FRAMERATE_GRAPH_HIGH_RES_INTERVAL = 16;
+const GRAPH_REQUIREMENTS = {
+  timeline: {
+    features: ["withMarkers"]
+  },
+  framerate: {
+    features: ["withTicks"]
+  },
+  memory: {
+    features: ["withMemory"]
+  },
+};
+
+/**
+ * View handler for the overview panel's time view, displaying
+ * framerate, timeline and memory over time.
+ */
+var OverviewView = {
+
+  /**
+   * How frequently we attempt to render the graphs. Overridden
+   * in tests.
+   */
+  OVERVIEW_UPDATE_INTERVAL: OVERVIEW_UPDATE_INTERVAL,
+
+  /**
+   * Sets up the view with event binding.
+   */
+  initialize: function () {
+    this.graphs = new GraphsController({
+      root: $("#overview-pane"),
+      getFilter: () => PerformanceController.getPref("hidden-markers"),
+      getTheme: () => PerformanceController.getTheme(),
+    });
+
+    // If no timeline support, shut it all down.
+    if (!PerformanceController.getTraits().features.withMarkers) {
+      this.disable();
+      return;
+    }
+
+    // Store info on multiprocess support.
+    this._multiprocessData = PerformanceController.getMultiprocessStatus();
+
+    this._onRecordingStateChange = this._onRecordingStateChange.bind(this);
+    this._onRecordingSelected = this._onRecordingSelected.bind(this);
+    this._onRecordingTick = this._onRecordingTick.bind(this);
+    this._onGraphSelecting = this._onGraphSelecting.bind(this);
+    this._onGraphRendered = this._onGraphRendered.bind(this);
+    this._onPrefChanged = this._onPrefChanged.bind(this);
+    this._onThemeChanged = this._onThemeChanged.bind(this);
+
+    // Toggle the initial visibility of memory and framerate graph containers
+    // based off of prefs.
+    PerformanceController.on(EVENTS.PREF_CHANGED, this._onPrefChanged);
+    PerformanceController.on(EVENTS.THEME_CHANGED, this._onThemeChanged);
+    PerformanceController.on(EVENTS.RECORDING_STATE_CHANGE, this._onRecordingStateChange);
+    PerformanceController.on(EVENTS.RECORDING_SELECTED, this._onRecordingSelected);
+    this.graphs.on("selecting", this._onGraphSelecting);
+    this.graphs.on("rendered", this._onGraphRendered);
+  },
+
+  /**
+   * Unbinds events.
+   */
+  destroy: Task.async(function* () {
+    PerformanceController.off(EVENTS.PREF_CHANGED, this._onPrefChanged);
+    PerformanceController.off(EVENTS.THEME_CHANGED, this._onThemeChanged);
+    PerformanceController.off(EVENTS.RECORDING_STATE_CHANGE,
+                              this._onRecordingStateChange);
+    PerformanceController.off(EVENTS.RECORDING_SELECTED, this._onRecordingSelected);
+    this.graphs.off("selecting", this._onGraphSelecting);
+    this.graphs.off("rendered", this._onGraphRendered);
+    yield this.graphs.destroy();
+  }),
+
+  /**
+   * Returns true if any of the overview graphs have mouse dragging active,
+   * false otherwise.
+   */
+  get isMouseActive() {
+    // Fetch all graphs currently stored in the GraphsController.
+    // These graphs are not necessarily active, but will not have
+    // an active mouse, in that case.
+    return !!this.graphs.getWidgets().some(e => e.isMouseActive);
+  },
+
+  /**
+   * Disabled in the event we're using a Timeline mock, so we'll have no
+   * timeline, ticks or memory data to show, so just block rendering and hide
+   * the panel.
+   */
+  disable: function () {
+    this._disabled = true;
+    this.graphs.disableAll();
+  },
+
+  /**
+   * Returns the disabled status.
+   *
+   * @return boolean
+   */
+  isDisabled: function () {
+    return this._disabled;
+  },
+
+  /**
+   * Sets the time interval selection for all graphs in this overview.
+   *
+   * @param object interval
+   *        The { startTime, endTime }, in milliseconds.
+   */
+  setTimeInterval: function (interval, options = {}) {
+    let recording = PerformanceController.getCurrentRecording();
+    if (recording == null) {
+      throw new Error("A recording should be available in order to set the selection.");
+    }
+    if (this.isDisabled()) {
+      return;
+    }
+    let mapStart = () => 0;
+    let mapEnd = () => recording.getDuration();
+    let selection = { start: interval.startTime, end: interval.endTime };
+    this._stopSelectionChangeEventPropagation = options.stopPropagation;
+    this.graphs.setMappedSelection(selection, { mapStart, mapEnd });
+    this._stopSelectionChangeEventPropagation = false;
+  },
+
+  /**
+   * Gets the time interval selection for all graphs in this overview.
+   *
+   * @return object
+   *         The { startTime, endTime }, in milliseconds.
+   */
+  getTimeInterval: function () {
+    let recording = PerformanceController.getCurrentRecording();
+    if (recording == null) {
+      throw new Error("A recording should be available in order to get the selection.");
+    }
+    if (this.isDisabled()) {
+      return { startTime: 0, endTime: recording.getDuration() };
+    }
+    let mapStart = () => 0;
+    let mapEnd = () => recording.getDuration();
+    let selection = this.graphs.getMappedSelection({ mapStart, mapEnd });
+    // If no selection returned, this means the overview graphs have not been rendered
+    // yet, so act as if we have no selection (the full recording). Also
+    // if the selection range distance is tiny, assume the range was cleared or just
+    // clicked, and we do not have a range.
+    if (!selection || (selection.max - selection.min) < 1) {
+      return { startTime: 0, endTime: recording.getDuration() };
+    }
+    return { startTime: selection.min, endTime: selection.max };
+  },
+
+  /**
+   * Method for handling all the set up for rendering the overview graphs.
+   *
+   * @param number resolution
+   *        The fps graph resolution. @see Graphs.js
+   */
+  render: Task.async(function* (resolution) {
+    if (this.isDisabled()) {
+      return;
+    }
+
+    let recording = PerformanceController.getCurrentRecording();
+    yield this.graphs.render(recording.getAllData(), resolution);
+
+    // Finished rendering all graphs in this overview.
+    this.emit(EVENTS.UI_OVERVIEW_RENDERED, resolution);
+  }),
+
+  /**
+   * Called at most every OVERVIEW_UPDATE_INTERVAL milliseconds
+   * and uses data fetched from the controller to render
+   * data into all the corresponding overview graphs.
+   */
+  _onRecordingTick: Task.async(function* () {
+    yield this.render(FRAMERATE_GRAPH_LOW_RES_INTERVAL);
+    this._prepareNextTick();
+  }),
+
+  /**
+   * Called to refresh the timer to keep firing _onRecordingTick.
+   */
+  _prepareNextTick: function () {
+    // Check here to see if there's still a _timeoutId, incase
+    // `stop` was called before the _prepareNextTick call was executed.
+    if (this.isRendering()) {
+      this._timeoutId = setTimeout(this._onRecordingTick, this.OVERVIEW_UPDATE_INTERVAL);
+    }
+  },
+
+  /**
+   * Called when recording state changes.
+   */
+  _onRecordingStateChange: OverviewViewOnStateChange(Task.async(
+    function* (_, state, recording) {
+      if (state !== "recording-stopped") {
+        return;
+      }
+      // Check to see if the recording that just stopped is the current recording.
+      // If it is, render the high-res graphs. For manual recordings, it will also
+      // be the current recording, but profiles generated by `console.profile` can stop
+      // while having another profile selected -- in this case, OverviewView should keep
+      // rendering the current recording.
+      if (recording !== PerformanceController.getCurrentRecording()) {
+        return;
+      }
+      this.render(FRAMERATE_GRAPH_HIGH_RES_INTERVAL);
+      yield this._checkSelection(recording);
+    })),
+
+  /**
+   * Called when a new recording is selected.
+   */
+  _onRecordingSelected: OverviewViewOnStateChange(Task.async(function* (_, recording) {
+    this._setGraphVisibilityFromRecordingFeatures(recording);
+
+    // If this recording is complete, render the high res graph
+    if (recording.isCompleted()) {
+      yield this.render(FRAMERATE_GRAPH_HIGH_RES_INTERVAL);
+    }
+    yield this._checkSelection(recording);
+    this.graphs.dropSelection();
+  })),
+
+  /**
+   * Start the polling for rendering the overview graph.
+   */
+  _startPolling: function () {
+    this._timeoutId = setTimeout(this._onRecordingTick, this.OVERVIEW_UPDATE_INTERVAL);
+  },
+
+  /**
+   * Stop the polling for rendering the overview graph.
+   */
+  _stopPolling: function () {
+    clearTimeout(this._timeoutId);
+    this._timeoutId = null;
+  },
+
+  /**
+   * Whether or not the overview view is in a state of polling rendering.
+   */
+  isRendering: function () {
+    return !!this._timeoutId;
+  },
+
+  /**
+   * Makes sure the selection is enabled or disabled in all the graphs,
+   * based on whether a recording currently exists and is not in progress.
+   */
+  _checkSelection: Task.async(function* (recording) {
+    let isEnabled = recording ? recording.isCompleted() : false;
+    yield this.graphs.selectionEnabled(isEnabled);
+  }),
+
+  /**
+   * Fired when the graph selection has changed. Called by
+   * mouseup and scroll events.
+   */
+  _onGraphSelecting: function () {
+    if (this._stopSelectionChangeEventPropagation) {
+      return;
+    }
+
+    this.emit(EVENTS.UI_OVERVIEW_RANGE_SELECTED, this.getTimeInterval());
+  },
+
+  _onGraphRendered: function (_, graphName) {
+    switch (graphName) {
+      case "timeline":
+        this.emit(EVENTS.UI_MARKERS_GRAPH_RENDERED);
+        break;
+      case "memory":
+        this.emit(EVENTS.UI_MEMORY_GRAPH_RENDERED);
+        break;
+      case "framerate":
+        this.emit(EVENTS.UI_FRAMERATE_GRAPH_RENDERED);
+        break;
+    }
+  },
+
+  /**
+   * Called whenever a preference in `devtools.performance.ui.` changes.
+   * Does not care about the enabling of memory/framerate graphs,
+   * because those will set values on a recording model, and
+   * the graphs will render based on the existence.
+   */
+  _onPrefChanged: Task.async(function* (_, prefName, prefValue) {
+    switch (prefName) {
+      case "hidden-markers": {
+        let graph = yield this.graphs.isAvailable("timeline");
+        if (graph) {
+          let filter = PerformanceController.getPref("hidden-markers");
+          graph.setFilter(filter);
+          graph.refresh({ force: true });
+        }
+        break;
+      }
+    }
+  }),
+
+  _setGraphVisibilityFromRecordingFeatures: function (recording) {
+    for (let [graphName, requirements] of Object.entries(GRAPH_REQUIREMENTS)) {
+      this.graphs.enable(graphName,
+                         PerformanceController.isFeatureSupported(requirements.features));
+    }
+  },
+
+  /**
+   * Fetch the multiprocess status and if e10s is not currently on, disable
+   * realtime rendering.
+   *
+   * @return {boolean}
+   */
+  isRealtimeRenderingEnabled: function () {
+    return this._multiprocessData.enabled;
+  },
+
+  /**
+   * Show the graphs overview panel when a recording is finished
+   * when non-realtime graphs are enabled. Also set the graph visibility
+   * so the performance graphs know which graphs to render.
+   *
+   * @param {RecordingModel} recording
+   */
+  _showGraphsPanel: function (recording) {
+    this._setGraphVisibilityFromRecordingFeatures(recording);
+    $("#overview-pane").classList.remove("hidden");
+  },
+
+  /**
+   * Hide the graphs container completely.
+   */
+  _hideGraphsPanel: function () {
+    $("#overview-pane").classList.add("hidden");
+  },
+
+  /**
+   * Called when `devtools.theme` changes.
+   */
+  _onThemeChanged: function (_, theme) {
+    this.graphs.setTheme({ theme, redraw: true });
+  },
+
+  toString: () => "[object OverviewView]"
+};
+
+/**
+ * Utility that can wrap a method of OverviewView that
+ * handles a recording state change like when a recording is starting,
+ * stopping, or about to start/stop, and determines whether or not
+ * the polling for rendering the overview graphs needs to start or stop.
+ * Must be called with the OverviewView context.
+ *
+ * @param {function?} fn
+ * @return {function}
+ */
+function OverviewViewOnStateChange(fn) {
+  return function _onRecordingStateChange(eventName, recording) {
+    // Normalize arguments for the RECORDING_STATE_CHANGE event,
+    // as it also has a `state` argument.
+    if (typeof recording === "string") {
+      recording = arguments[2];
+    }
+
+    let currentRecording = PerformanceController.getCurrentRecording();
+
+    // All these methods require a recording to exist selected and
+    // from the event name, since there is a delay between starting
+    // a recording and changing the selection.
+    if (!currentRecording || !recording) {
+      // If no recording (this can occur when having a console.profile recording, and
+      // we do not stop it from the backend), and we are still rendering updates,
+      // stop that.
+      if (this.isRendering()) {
+        this._stopPolling();
+      }
+      return;
+    }
+
+    // If realtime rendering is not enabed (e10s not on), then
+    // show the disabled message, or the full graphs if the recording is completed
+    if (!this.isRealtimeRenderingEnabled()) {
+      if (recording.isRecording()) {
+        this._hideGraphsPanel();
+        // Abort, as we do not want to change polling status.
+        return;
+      }
+      this._showGraphsPanel(recording);
+    }
+
+    if (this.isRendering() && !currentRecording.isRecording()) {
+      this._stopPolling();
+    } else if (currentRecording.isRecording() && !this.isRendering()) {
+      this._startPolling();
+    }
+
+    if (fn) {
+      fn.apply(this, arguments);
+    }
+  };
+}
+
+// Decorates the OverviewView as an EventEmitter
+EventEmitter.decorate(OverviewView);