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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:13:27 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:13:27 +0000 |
commit | 40a355a42d4a9444dc753c04c6608dade2f06a23 (patch) | |
tree | 871fc667d2de662f171103ce5ec067014ef85e61 /dom/browser-element/BrowserElementChildPreload.js | |
parent | Adding upstream version 124.0.1. (diff) | |
download | firefox-40a355a42d4a9444dc753c04c6608dade2f06a23.tar.xz firefox-40a355a42d4a9444dc753c04c6608dade2f06a23.zip |
Adding upstream version 125.0.1.upstream/125.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/browser-element/BrowserElementChildPreload.js')
-rw-r--r-- | dom/browser-element/BrowserElementChildPreload.js | 290 |
1 files changed, 0 insertions, 290 deletions
diff --git a/dom/browser-element/BrowserElementChildPreload.js b/dom/browser-element/BrowserElementChildPreload.js deleted file mode 100644 index 1bbcf9ff05..0000000000 --- a/dom/browser-element/BrowserElementChildPreload.js +++ /dev/null @@ -1,290 +0,0 @@ -/* 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"; - -/* eslint-env mozilla/frame-script */ - -function debug(msg) { - // dump("BrowserElementChildPreload - " + msg + "\n"); -} - -debug("loaded"); - -var BrowserElementIsReady; - -var { BrowserElementPromptService } = ChromeUtils.import( - "resource://gre/modules/BrowserElementPromptService.jsm" -); - -function sendAsyncMsg(msg, data) { - // Ensure that we don't send any messages before BrowserElementChild.js - // finishes loading. - if (!BrowserElementIsReady) { - return; - } - - if (!data) { - data = {}; - } - - data.msg_name = msg; - sendAsyncMessage("browser-element-api:call", data); -} - -var LISTENED_EVENTS = [ - // This listens to unload events from our message manager, but /not/ from - // the |content| window. That's because the window's unload event doesn't - // bubble, and we're not using a capturing listener. If we'd used - // useCapture == true, we /would/ hear unload events from the window, which - // is not what we want! - { type: "unload", useCapture: false, wantsUntrusted: false }, -]; - -/** - * The BrowserElementChild implements one half of <iframe mozbrowser>. - * (The other half is, unsurprisingly, BrowserElementParent.) - * - * This script is injected into an <iframe mozbrowser> via - * nsIMessageManager::LoadFrameScript(). - * - * Our job here is to listen for events within this frame and bubble them up to - * the parent process. - */ - -var global = this; - -function BrowserElementChild() { - // Maps outer window id --> weak ref to window. Used by modal dialog code. - this._windowIDDict = {}; - - this._init(); -} - -BrowserElementChild.prototype = { - _init() { - debug("Starting up."); - - BrowserElementPromptService.mapWindowToBrowserElementChild(content, this); - - this._shuttingDown = false; - - LISTENED_EVENTS.forEach(event => { - addEventListener( - event.type, - this, - event.useCapture, - event.wantsUntrusted - ); - }); - - addMessageListener("browser-element-api:call", this); - }, - - /** - * Shut down the frame's side of the browser API. This is called when: - * - our BrowserChildGlobal starts to die - * - the content is moved to frame without the browser API - * This is not called when the page inside |content| unloads. - */ - destroy() { - debug("Destroying"); - this._shuttingDown = true; - - BrowserElementPromptService.unmapWindowToBrowserElementChild(content); - - LISTENED_EVENTS.forEach(event => { - removeEventListener( - event.type, - this, - event.useCapture, - event.wantsUntrusted - ); - }); - - removeMessageListener("browser-element-api:call", this); - }, - - handleEvent(event) { - switch (event.type) { - case "unload": - this.destroy(event); - break; - } - }, - - receiveMessage(message) { - let self = this; - - let mmCalls = { - "unblock-modal-prompt": this._recvStopWaiting, - }; - - if (message.data.msg_name in mmCalls) { - return mmCalls[message.data.msg_name].apply(self, arguments); - } - return undefined; - }, - - get _windowUtils() { - return content.document.defaultView.windowUtils; - }, - - _tryGetInnerWindowID(win) { - try { - return win.windowGlobalChild.innerWindowId; - } catch (e) { - return null; - } - }, - - /** - * Show a modal prompt. Called by BrowserElementPromptService. - */ - showModalPrompt(win, args) { - args.windowID = { - outer: win.docShell.outerWindowID, - inner: this._tryGetInnerWindowID(win), - }; - sendAsyncMsg("showmodalprompt", args); - - let returnValue = this._waitForResult(win); - - if ( - args.promptType == "prompt" || - args.promptType == "confirm" || - args.promptType == "custom-prompt" - ) { - return returnValue; - } - return undefined; - }, - - /** - * Spin in a nested event loop until we receive a unblock-modal-prompt message for - * this window. - */ - _waitForResult(win) { - debug("_waitForResult(" + win + ")"); - let utils = win.windowUtils; - - let outerWindowID = win.docShell.outerWindowID; - let innerWindowID = this._tryGetInnerWindowID(win); - if (innerWindowID === null) { - // I have no idea what waiting for a result means when there's no inner - // window, so let's just bail. - debug("_waitForResult: No inner window. Bailing."); - return undefined; - } - - this._windowIDDict[outerWindowID] = Cu.getWeakReference(win); - - debug( - "Entering modal state (outerWindowID=" + - outerWindowID + - ", " + - "innerWindowID=" + - innerWindowID + - ")" - ); - - utils.enterModalState(); - - // We'll decrement win.modalDepth when we receive a unblock-modal-prompt message - // for the window. - if (!win.modalDepth) { - win.modalDepth = 0; - } - win.modalDepth++; - let origModalDepth = win.modalDepth; - - debug("Nested event loop - begin"); - Services.tm.spinEventLoopUntil( - "BrowserElementChildPreload.js:_waitForResult", - () => { - // Bail out of the loop if the inner window changed; that means the - // window navigated. Bail out when we're shutting down because otherwise - // we'll leak our window. - if (this._tryGetInnerWindowID(win) !== innerWindowID) { - debug( - "_waitForResult: Inner window ID changed " + - "while in nested event loop." - ); - return true; - } - - return win.modalDepth !== origModalDepth || this._shuttingDown; - } - ); - debug("Nested event loop - finish"); - - if (win.modalDepth == 0) { - delete this._windowIDDict[outerWindowID]; - } - - // If we exited the loop because the inner window changed, then bail on the - // modal prompt. - if (innerWindowID !== this._tryGetInnerWindowID(win)) { - throw Components.Exception( - "Modal state aborted by navigation", - Cr.NS_ERROR_NOT_AVAILABLE - ); - } - - let returnValue = win.modalReturnValue; - delete win.modalReturnValue; - - if (!this._shuttingDown) { - utils.leaveModalState(); - } - - debug( - "Leaving modal state (outerID=" + - outerWindowID + - ", " + - "innerID=" + - innerWindowID + - ")" - ); - return returnValue; - }, - - _recvStopWaiting(msg) { - let outerID = msg.json.windowID.outer; - let innerID = msg.json.windowID.inner; - let returnValue = msg.json.returnValue; - debug( - "recvStopWaiting(outer=" + - outerID + - ", inner=" + - innerID + - ", returnValue=" + - returnValue + - ")" - ); - - if (!this._windowIDDict[outerID]) { - debug("recvStopWaiting: No record of outer window ID " + outerID); - return; - } - - let win = this._windowIDDict[outerID].get(); - - if (!win) { - debug("recvStopWaiting, but window is gone\n"); - return; - } - - if (innerID !== this._tryGetInnerWindowID(win)) { - debug("recvStopWaiting, but inner ID has changed\n"); - return; - } - - debug("recvStopWaiting " + win); - win.modalReturnValue = returnValue; - win.modalDepth--; - }, -}; - -var api = new BrowserElementChild(); |