mirror of
https://github.com/classilla/tenfourfox.git
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117 lines
3.8 KiB
JavaScript
117 lines
3.8 KiB
JavaScript
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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const constants = require("../constants");
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const { rdpInvoke, asPaused } = require("../utils");
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const { reportException } = require("devtools/shared/DevToolsUtils");
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const FETCH_EVENT_LISTENERS_DELAY = 200; // ms
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function fetchEventListeners() {
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return (dispatch, getState) => {
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// Make sure we"re not sending a batch of closely repeated requests.
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// This can easily happen whenever new sources are fetched.
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setNamedTimeout("event-listeners-fetch", FETCH_EVENT_LISTENERS_DELAY, () => {
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// In case there is still a request of listeners going on (it
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// takes several RDP round trips right now), make sure we wait
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// on a currently running request
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if (getState().eventListeners.fetchingListeners) {
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dispatch({
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type: services.WAIT_UNTIL,
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predicate: action => (
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action.type === constants.FETCH_EVENT_LISTENERS &&
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action.status === "done"
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),
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run: dispatch => dispatch(fetchEventListeners())
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});
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return;
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}
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dispatch({
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type: constants.FETCH_EVENT_LISTENERS,
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status: "begin"
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});
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asPaused(gThreadClient, _getListeners).then(listeners => {
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// Notify that event listeners were fetched and shown in the view,
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// and callback to resume the active thread if necessary.
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window.emit(EVENTS.EVENT_LISTENERS_FETCHED);
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dispatch({
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type: constants.FETCH_EVENT_LISTENERS,
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status: "done",
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listeners: listeners
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});
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});
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});
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};
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}
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const _getListeners = Task.async(function*() {
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const response = yield rdpInvoke(gThreadClient, gThreadClient.eventListeners);
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// Make sure all the listeners are sorted by the event type, since
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// they"re not guaranteed to be clustered together.
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response.listeners.sort((a, b) => a.type > b.type ? 1 : -1);
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// Add all the listeners in the debugger view event linsteners container.
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let fetchedDefinitions = new Map();
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let listeners = [];
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for (let listener of response.listeners) {
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let definitionSite;
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if (fetchedDefinitions.has(listener.function.actor)) {
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definitionSite = fetchedDefinitions.get(listener.function.actor);
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} else if (listener.function.class == "Function") {
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definitionSite = yield _getDefinitionSite(listener.function);
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if (!definitionSite) {
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// We don"t know where this listener comes from so don"t show it in
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// the UI as breaking on it doesn"t work (bug 942899).
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continue;
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}
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fetchedDefinitions.set(listener.function.actor, definitionSite);
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}
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listener.function.url = definitionSite;
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listeners.push(listener);
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}
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fetchedDefinitions.clear();
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return listeners;
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});
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const _getDefinitionSite = Task.async(function*(aFunction) {
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const grip = gThreadClient.pauseGrip(aFunction);
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let response;
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try {
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response = yield rdpInvoke(grip, grip.getDefinitionSite);
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}
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catch(e) {
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// Don't make this error fatal, because it would break the entire events pane.
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reportException("_getDefinitionSite", e);
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return null;
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}
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return response.source.url;
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});
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function updateEventBreakpoints(eventNames) {
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return dispatch => {
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setNamedTimeout("event-breakpoints-update", 0, () => {
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gThreadClient.pauseOnDOMEvents(eventNames, function() {
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// Notify that event breakpoints were added/removed on the server.
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window.emit(EVENTS.EVENT_BREAKPOINTS_UPDATED);
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dispatch({
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type: constants.UPDATE_EVENT_BREAKPOINTS,
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eventNames: eventNames
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});
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});
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});
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}
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}
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module.exports = { updateEventBreakpoints, fetchEventListeners };
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