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-rw-r--r--browser/components/shell/content/setDesktopBackground.js252
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diff --git a/browser/components/shell/content/setDesktopBackground.js b/browser/components/shell/content/setDesktopBackground.js
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+++ b/browser/components/shell/content/setDesktopBackground.js
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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/. */
+
+/* import-globals-from /browser/base/content/utilityOverlay.js */
+
+var gSetBackground = {
+ _position: AppConstants.platform == "macosx" ? "STRETCH" : "",
+ _backgroundColor: AppConstants.platform != "macosx" ? 0 : undefined,
+ _screenWidth: 0,
+ _screenHeight: 0,
+ _image: null,
+ _canvas: null,
+ _imageName: null,
+
+ get _shell() {
+ return Cc["@mozilla.org/browser/shell-service;1"].getService(
+ Ci.nsIShellService
+ );
+ },
+
+ load() {
+ this._canvas = document.getElementById("screen");
+ this._screenWidth = screen.width;
+ this._screenHeight = screen.height;
+ // Cap ratio to 4 so the dialog width doesn't get ridiculous. Highest
+ // regular screens seem to be 32:9 (3.56) according to Wikipedia.
+ let screenRatio = Math.min(this._screenWidth / this._screenHeight, 4);
+ this._canvas.width = this._canvas.height * screenRatio;
+ document.getElementById("preview-unavailable").style.width =
+ this._canvas.width + "px";
+
+ if (AppConstants.platform == "macosx") {
+ document
+ .getElementById("SetDesktopBackgroundDialog")
+ .getButton("accept").hidden = true;
+ } else {
+ let multiMonitors = false;
+ if (AppConstants.platform == "linux") {
+ // getMonitors only ever returns the primary monitor on Linux, so just
+ // always show the option
+ multiMonitors = true;
+ } else {
+ const gfxInfo = Cc["@mozilla.org/gfx/info;1"].getService(Ci.nsIGfxInfo);
+ const monitors = gfxInfo.getMonitors();
+ multiMonitors = monitors.length > 1;
+ }
+
+ if (
+ !multiMonitors ||
+ AppConstants.isPlatformAndVersionAtMost("win", 6.1)
+ ) {
+ // Hide span option if < Win8 since that's when it was introduced.
+ document.getElementById("spanPosition").hidden = true;
+ }
+ }
+
+ document.addEventListener("dialogaccept", function () {
+ gSetBackground.setDesktopBackground();
+ });
+ // make sure that the correct dimensions will be used
+ setTimeout(
+ function (self) {
+ self.init(window.arguments[0], window.arguments[1]);
+ },
+ 0,
+ this
+ );
+ },
+
+ init(aImage, aImageName) {
+ this._image = aImage;
+ this._imageName = aImageName;
+
+ // set the size of the coordinate space
+ this._canvas.width = this._canvas.clientWidth;
+ this._canvas.height = this._canvas.clientHeight;
+
+ var ctx = this._canvas.getContext("2d");
+ ctx.scale(
+ this._canvas.clientWidth / this._screenWidth,
+ this._canvas.clientHeight / this._screenHeight
+ );
+
+ if (AppConstants.platform != "macosx") {
+ this._initColor();
+ } else {
+ // Make sure to reset the button state in case the user has already
+ // set an image as their desktop background.
+ var setDesktopBackground = document.getElementById(
+ "setDesktopBackground"
+ );
+ setDesktopBackground.hidden = false;
+ var bundle = document.getElementById("backgroundBundle");
+ setDesktopBackground.label = bundle.getString("DesktopBackgroundSet");
+ setDesktopBackground.disabled = false;
+
+ document.getElementById("showDesktopPreferences").hidden = true;
+ }
+ this.updatePosition();
+ },
+
+ setDesktopBackground() {
+ if (AppConstants.platform != "macosx") {
+ Services.xulStore.persist(
+ document.getElementById("menuPosition"),
+ "value"
+ );
+ this._shell.desktopBackgroundColor = this._hexStringToLong(
+ this._backgroundColor
+ );
+ } else {
+ Services.obs.addObserver(this, "shell:desktop-background-changed");
+
+ var bundle = document.getElementById("backgroundBundle");
+ var setDesktopBackground = document.getElementById(
+ "setDesktopBackground"
+ );
+ setDesktopBackground.disabled = true;
+ setDesktopBackground.label = bundle.getString(
+ "DesktopBackgroundDownloading"
+ );
+ }
+ this._shell.setDesktopBackground(
+ this._image,
+ Ci.nsIShellService["BACKGROUND_" + this._position],
+ this._imageName
+ );
+ },
+
+ updatePosition() {
+ var ctx = this._canvas.getContext("2d");
+ ctx.clearRect(0, 0, this._screenWidth, this._screenHeight);
+ document.getElementById("preview-unavailable").hidden = true;
+
+ if (AppConstants.platform != "macosx") {
+ this._position = document.getElementById("menuPosition").value;
+ }
+
+ switch (this._position) {
+ case "TILE":
+ ctx.save();
+ ctx.fillStyle = ctx.createPattern(this._image, "repeat");
+ ctx.fillRect(0, 0, this._screenWidth, this._screenHeight);
+ ctx.restore();
+ break;
+ case "STRETCH":
+ ctx.drawImage(this._image, 0, 0, this._screenWidth, this._screenHeight);
+ break;
+ case "CENTER": {
+ let x = (this._screenWidth - this._image.naturalWidth) / 2;
+ let y = (this._screenHeight - this._image.naturalHeight) / 2;
+ ctx.drawImage(this._image, x, y);
+ break;
+ }
+ case "FILL": {
+ // Try maxing width first, overflow height.
+ let widthRatio = this._screenWidth / this._image.naturalWidth;
+ let width = this._image.naturalWidth * widthRatio;
+ let height = this._image.naturalHeight * widthRatio;
+ if (height < this._screenHeight) {
+ // Height less than screen, max height and overflow width.
+ let heightRatio = this._screenHeight / this._image.naturalHeight;
+ width = this._image.naturalWidth * heightRatio;
+ height = this._image.naturalHeight * heightRatio;
+ }
+ let x = (this._screenWidth - width) / 2;
+ let y = (this._screenHeight - height) / 2;
+ ctx.drawImage(this._image, x, y, width, height);
+ break;
+ }
+ case "FIT": {
+ // Try maxing width first, top and bottom borders.
+ let widthRatio = this._screenWidth / this._image.naturalWidth;
+ let width = this._image.naturalWidth * widthRatio;
+ let height = this._image.naturalHeight * widthRatio;
+ let x = 0;
+ let y = (this._screenHeight - height) / 2;
+ if (height > this._screenHeight) {
+ // Height overflow, maximise height, side borders.
+ let heightRatio = this._screenHeight / this._image.naturalHeight;
+ width = this._image.naturalWidth * heightRatio;
+ height = this._image.naturalHeight * heightRatio;
+ x = (this._screenWidth - width) / 2;
+ y = 0;
+ }
+ ctx.drawImage(this._image, x, y, width, height);
+ break;
+ }
+ case "SPAN": {
+ document.getElementById("preview-unavailable").hidden = false;
+ ctx.fillStyle = "#222";
+ ctx.fillRect(0, 0, this._screenWidth, this._screenHeight);
+ ctx.stroke();
+ }
+ }
+ },
+};
+
+if (AppConstants.platform != "macosx") {
+ gSetBackground._initColor = function () {
+ var color = this._shell.desktopBackgroundColor;
+
+ const rMask = 4294901760;
+ const gMask = 65280;
+ const bMask = 255;
+ var r = (color & rMask) >> 16;
+ var g = (color & gMask) >> 8;
+ var b = color & bMask;
+ this.updateColor(this._rgbToHex(r, g, b));
+
+ var colorpicker = document.getElementById("desktopColor");
+ colorpicker.value = this._backgroundColor;
+ };
+
+ gSetBackground.updateColor = function (aColor) {
+ this._backgroundColor = aColor;
+ this._canvas.style.backgroundColor = aColor;
+ };
+
+ // Converts a color string in the format "#RRGGBB" to an integer.
+ gSetBackground._hexStringToLong = function (aString) {
+ return (
+ (parseInt(aString.substring(1, 3), 16) << 16) |
+ (parseInt(aString.substring(3, 5), 16) << 8) |
+ parseInt(aString.substring(5, 7), 16)
+ );
+ };
+
+ gSetBackground._rgbToHex = function (aR, aG, aB) {
+ return (
+ "#" +
+ [aR, aG, aB]
+ .map(aInt => aInt.toString(16).replace(/^(.)$/, "0$1"))
+ .join("")
+ .toUpperCase()
+ );
+ };
+} else {
+ gSetBackground.observe = function (aSubject, aTopic, aData) {
+ if (aTopic == "shell:desktop-background-changed") {
+ document.getElementById("setDesktopBackground").hidden = true;
+ document.getElementById("showDesktopPreferences").hidden = false;
+
+ Services.obs.removeObserver(this, "shell:desktop-background-changed");
+ }
+ };
+
+ gSetBackground.showDesktopPrefs = function () {
+ this._shell.QueryInterface(Ci.nsIMacShellService).showDesktopPreferences();
+ };
+}