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Diffstat (limited to 'tools/addon-sdk-1.5/packages/api-utils/lib/utils/thumbnail.js')
-rw-r--r-- | tools/addon-sdk-1.5/packages/api-utils/lib/utils/thumbnail.js | 43 |
1 files changed, 0 insertions, 43 deletions
diff --git a/tools/addon-sdk-1.5/packages/api-utils/lib/utils/thumbnail.js b/tools/addon-sdk-1.5/packages/api-utils/lib/utils/thumbnail.js deleted file mode 100644 index dfd03dd..0000000 --- a/tools/addon-sdk-1.5/packages/api-utils/lib/utils/thumbnail.js +++ /dev/null @@ -1,43 +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"; - -const { Cc, Ci, Cu } = require("chrome"); -const AppShellService = Cc["@mozilla.org/appshell/appShellService;1"]. - getService(Ci.nsIAppShellService); - -const NS = "http://www.w3.org/1999/xhtml"; -const COLOR = "rgb(255,255,255)"; - -/** - * Creates canvas element with a thumbnail of the passed window. - * @param {Window} window - * @returns {Element} - */ -function getThumbnailCanvasForWindow(window) { - let aspectRatio = 0.5625; // 16:9 - let thumbnail = AppShellService.hiddenDOMWindow.document - .createElementNS(NS, "canvas"); - thumbnail.mozOpaque = true; - thumbnail.width = Math.ceil(window.screen.availWidth / 5.75); - thumbnail.height = Math.round(thumbnail.width * aspectRatio); - let ctx = thumbnail.getContext("2d"); - let snippetWidth = window.innerWidth * .6; - let scale = thumbnail.width / snippetWidth; - ctx.scale(scale, scale); - ctx.drawWindow(window, window.scrollX, window.scrollY, snippetWidth, - snippetWidth * aspectRatio, COLOR); - return thumbnail; -} -exports.getThumbnailCanvasForWindow = getThumbnailCanvasForWindow; - -/** - * Creates Base64 encoded data URI of the thumbnail for the passed window. - * @param {Window} window - * @returns {String} - */ -exports.getThumbnailURIForWindow = function getThumbnailURIForWindow(window) { - return getThumbnailCanvasForWindow(window).toDataURL() -}; |