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/* 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/. */
"use strict";
/**
* Master view handler for the performance tool.
*/
let PerformanceView = {
_state: null,
// Mapping of state to selectors for different panes
// of the main profiler view. Used in `PerformanceView.setState()`
states: {
empty: [
{ deck: "#performance-view", pane: "#empty-notice" }
],
recording: [
{ deck: "#performance-view", pane: "#performance-view-content" },
{ deck: "#details-pane-container", pane: "#recording-notice" }
],
recorded: [
{ deck: "#performance-view", pane: "#performance-view-content" },
{ deck: "#details-pane-container", pane: "#details-pane" }
]
},
/**
* Sets up the view with event binding and main subviews.
*/
initialize: Task.async(function* () {
this._recordButton = $("#main-record-button");
this._importButton = $("#import-button");
this._clearButton = $("#clear-button");
this._onRecordButtonClick = this._onRecordButtonClick.bind(this);
this._onImportButtonClick = this._onImportButtonClick.bind(this);
this._onClearButtonClick = this._onClearButtonClick.bind(this);
this._lockRecordButton = this._lockRecordButton.bind(this);
this._unlockRecordButton = this._unlockRecordButton.bind(this);
this._onRecordingSelected = this._onRecordingSelected.bind(this);
this._onRecordingStopped = this._onRecordingStopped.bind(this);
this._onRecordingWillStop = this._onRecordingWillStop.bind(this);
this._onRecordingWillStart = this._onRecordingWillStart.bind(this);
for (let button of $$(".record-button")) {
button.addEventListener("click", this._onRecordButtonClick);
}
this._importButton.addEventListener("click", this._onImportButtonClick);
this._clearButton.addEventListener("click", this._onClearButtonClick);
// Bind to controller events to unlock the record button
PerformanceController.on(EVENTS.RECORDING_WILL_START, this._onRecordingWillStart);
PerformanceController.on(EVENTS.RECORDING_WILL_STOP, this._onRecordingWillStop);
PerformanceController.on(EVENTS.RECORDING_STARTED, this._unlockRecordButton);
PerformanceController.on(EVENTS.RECORDING_STOPPED, this._onRecordingStopped);
PerformanceController.on(EVENTS.RECORDING_SELECTED, this._onRecordingSelected);
this.setState("empty");
// Initialize the ToolbarView first, because other views may need access
// to the OptionsView via the controller, to read prefs.
yield ToolbarView.initialize();
yield RecordingsView.initialize();
yield OverviewView.initialize();
yield DetailsView.initialize();
}),
/**
* Unbinds events and destroys subviews.
*/
destroy: Task.async(function* () {
for (let button of $$(".record-button")) {
button.removeEventListener("click", this._onRecordButtonClick);
}
this._importButton.removeEventListener("click", this._onImportButtonClick);
this._clearButton.removeEventListener("click", this._onClearButtonClick);
PerformanceController.off(EVENTS.RECORDING_WILL_START, this._onRecordingWillStart);
PerformanceController.off(EVENTS.RECORDING_WILL_STOP, this._onRecordingWillStop);
PerformanceController.off(EVENTS.RECORDING_STARTED, this._unlockRecordButton);
PerformanceController.off(EVENTS.RECORDING_STOPPED, this._onRecordingStopped);
PerformanceController.off(EVENTS.RECORDING_SELECTED, this._onRecordingSelected);
yield ToolbarView.destroy();
yield RecordingsView.destroy();
yield OverviewView.destroy();
yield DetailsView.destroy();
}),
/**
* Sets the state of the profiler view. Possible options are "empty",
* "recording", "recorded".
*/
setState: function (state) {
let viewConfig = this.states[state];
if (!viewConfig) {
throw new Error(`Invalid state for PerformanceView: ${state}`);
}
for (let { deck, pane } of viewConfig) {
$(deck).selectedPanel = $(pane);
}
this._state = state;
this.emit(EVENTS.UI_STATE_CHANGED, state);
},
/**
* Returns the state of the PerformanceView.
*/
getState: function () {
return this._state;
},
/**
* Adds the `locked` attribute on the record button. This prevents it
* from being clicked while recording is started or stopped.
*/
_lockRecordButton: function () {
this._recordButton.setAttribute("locked", "true");
},
/**
* Removes the `locked` attribute on the record button.
*/
_unlockRecordButton: function () {
this._recordButton.removeAttribute("locked");
},
/**
* Fired when a recording is starting, but not yet completed.
*/
_onRecordingWillStart: function () {
this._lockRecordButton();
this._recordButton.setAttribute("checked", "true");
},
/**
* Fired when a recording is stopping, but not yet completed.
*/
_onRecordingWillStop: function () {
this._lockRecordButton();
this._recordButton.removeAttribute("checked");
},
/**
* When a recording is complete.
*/
_onRecordingStopped: function (_, recording) {
this._unlockRecordButton();
// If this recording stopped is the current recording, set the
// state to "recorded". A stopped recording doesn't necessarily
// have to be the current recording (console.profileEnd, for example)
if (recording === PerformanceController.getCurrentRecording()) {
this.setState("recorded");
}
},
/**
* Handler for clicking the clear button.
*/
_onClearButtonClick: function (e) {
this.emit(EVENTS.UI_CLEAR_RECORDINGS);
},
/**
* Handler for clicking the record button.
*/
_onRecordButtonClick: function (e) {
if (this._recordButton.hasAttribute("checked")) {
this.emit(EVENTS.UI_STOP_RECORDING);
} else {
this.emit(EVENTS.UI_START_RECORDING);
}
},
/**
* Handler for clicking the import button.
*/
_onImportButtonClick: function(e) {
let fp = Cc["@mozilla.org/filepicker;1"].createInstance(Ci.nsIFilePicker);
fp.init(window, L10N.getStr("recordingsList.saveDialogTitle"), Ci.nsIFilePicker.modeOpen);
fp.appendFilter(L10N.getStr("recordingsList.saveDialogJSONFilter"), "*.json");
fp.appendFilter(L10N.getStr("recordingsList.saveDialogAllFilter"), "*.*");
if (fp.show() == Ci.nsIFilePicker.returnOK) {
this.emit(EVENTS.UI_IMPORT_RECORDING, fp.file);
}
},
/**
* Fired when a recording is selected. Used to toggle the profiler view state.
*/
_onRecordingSelected: function (_, recording) {
if (!recording) {
this.setState("empty");
} else if (recording.isRecording()) {
this.setState("recording");
} else {
this.setState("recorded");
}
},
toString: () => "[object PerformanceView]"
};
/**
* Convenient way of emitting events from the view.
*/
EventEmitter.decorate(PerformanceView);
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