diff options
Diffstat (limited to 'toolkit/components/webextensions/ext-c-backgroundPage.js')
-rw-r--r-- | toolkit/components/webextensions/ext-c-backgroundPage.js | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/toolkit/components/webextensions/ext-c-backgroundPage.js b/toolkit/components/webextensions/ext-c-backgroundPage.js new file mode 100644 index 000000000..ca446ce79 --- /dev/null +++ b/toolkit/components/webextensions/ext-c-backgroundPage.js @@ -0,0 +1,45 @@ +"use strict"; + +global.initializeBackgroundPage = (contentWindow) => { + // Override the `alert()` method inside background windows; + // we alias it to console.log(). + // See: https://bugzilla.mozilla.org/show_bug.cgi?id=1203394 + let alertDisplayedWarning = false; + let alertOverwrite = text => { + if (!alertDisplayedWarning) { + require("devtools/client/framework/devtools-browser"); + + let {HUDService} = require("devtools/client/webconsole/hudservice"); + HUDService.openBrowserConsoleOrFocus(); + + contentWindow.console.warn("alert() is not supported in background windows; please use console.log instead."); + + alertDisplayedWarning = true; + } + + contentWindow.console.log(text); + }; + Cu.exportFunction(alertOverwrite, contentWindow, {defineAs: "alert"}); +}; + +extensions.registerSchemaAPI("extension", "addon_child", context => { + function getBackgroundPage() { + for (let view of context.extension.views) { + if (view.viewType == "background" && context.principal.subsumes(view.principal)) { + return view.contentWindow; + } + } + return null; + } + return { + extension: { + getBackgroundPage, + }, + + runtime: { + getBackgroundPage() { + return context.cloneScope.Promise.resolve(getBackgroundPage()); + }, + }, + }; +}); |