1 files changed, 141 insertions, 0 deletions
diff --git a/comm/suite/components/pref/content/pref-content.js b/comm/suite/components/pref/content/pref-content.js
new file mode 100644
index 0000000000..964c216a28
--- /dev/null
+++ b/comm/suite/components/pref/content/pref-content.js
@@ -0,0 +1,141 @@
+/* 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/. */
+
+var {AppConstants} = ChromeUtils.import(
+  "resource://gre/modules/AppConstants.jsm"
+);
+
+var minMinValue;
+var maxMinValue;
+
+/**
+ * When starting up, obtain min and max values for the zoom-range controls
+ * from the first and last values of the zoom-levels array.
+ */
+function Startup()
+{
+  let minElement  = document.getElementById("minZoom");
+  let maxElement  = document.getElementById("maxZoom");
+  let minMaxLimit = 200;
+  let maxMinLimit = 50;  // allow reasonable amounts of overlap
+  let zoomValues  = Services.prefs.getCharPref("toolkit.zoomManager.zoomValues")
+                            .split(",").map(parseFloat);
+  zoomValues.sort((a, b) => a - b);
+
+  let firstValue  = Math.round(100 * zoomValues[0]);
+  let lastValue   = Math.round(100 * zoomValues[zoomValues.length - 1]);
+
+  minMinValue     = firstValue;
+  minElement.min  = minMinValue;
+  minElement.max  = lastValue  > minMaxLimit ? minMaxLimit : lastValue;
+
+  maxMinValue     = firstValue < maxMinLimit ? maxMinLimit : firstValue;
+  maxElement.min  = maxMinValue;
+  maxElement.max  = lastValue;
+
+  /*   defaultZoom  stuff   */
+
+  let defaultElement = document.getElementById("defaultZoom");
+
+  defaultElement.min = Services.prefs.getIntPref("zoom.minPercent");
+  defaultElement.max = Services.prefs.getIntPref("zoom.maxPercent");
+
+  var zoomValue = Services.contentPrefs2
+                          .getCachedGlobal("browser.content.full-zoom", null);
+  if (zoomValue && zoomValue.value) {
+    defaultElement.value = Math.round(zoomValue.value * 100);
+    return;
+  }
+
+  defaultElement.value = 100;
+  Services.contentPrefs2.getGlobal("browser.content.full-zoom", null, {
+    handleResult(pref) {
+      defaultElement.value = Math.round(pref.value * 100);
+    },
+    handleCompletion(reason) {}
+  });
+}
+
+/**
+ * Suspend "min" value while manually typing in a number.
+ */
+function DisableMinCheck(element)
+{
+  element.min = 0;
+}
+
+/**
+ * Modify the maxZoom setting if minZoom was chosen to be larger than it.
+ */
+function AdjustMaxZoom()
+{
+  let minElement  = document.getElementById("minZoom");
+  let maxElement  = document.getElementById("maxZoom");
+  let maxPref     = document.getElementById("zoom.maxPercent");
+
+  if(minElement.valueNumber > maxElement.valueNumber)
+    maxPref.value = minElement.value;
+
+  minElement.min  = minMinValue;
+
+  let defaultElement  = document.getElementById("defaultZoom");
+  if (defaultElement.valueNumber < minElement.valueNumber) {
+    defaultElement.valueNumber = minElement.valueNumber;
+    SetDefaultZoom();
+  }
+  defaultElement.min = minElement.valueNumber;
+}
+
+/**
+ * Modify the minZoom setting if maxZoom was chosen to be smaller than it,
+ * adjusting maxZoom first if it's below maxMinValue.
+ */
+function AdjustMinZoom()
+{
+  let minElement  = document.getElementById("minZoom");
+  let maxElement  = document.getElementById("maxZoom");
+  let minPref     = document.getElementById("zoom.minPercent");
+  let maxValue    = maxElement.valueNumber < maxMinValue ?
+                    maxMinValue : maxElement.valueNumber;
+
+  if(maxValue < minElement.valueNumber)
+    minPref.value = maxValue;
+
+  maxElement.min  = maxMinValue;
+
+  let defaultElement  = document.getElementById("defaultZoom");
+  if (defaultElement.valueNumber > maxElement.valueNumber) {
+    defaultElement.valueNumber = maxElement.valueNumber;
+    SetDefaultZoom();
+  }
+  defaultElement.max = maxElement.valueNumber;
+}
+
+/**
+ * Set default zoom.
+ */
+function SetDefaultZoom()
+{
+  let defaultElement  = document.getElementById("defaultZoom");
+
+  if (defaultElement.valueNumber == 100) {
+    Services.contentPrefs2.removeGlobal("browser.content.full-zoom", null);
+    return;
+  }
+
+  let new_value = defaultElement.valueNumber / 100.;
+  Services.contentPrefs2.setGlobal("browser.content.full-zoom", new_value,
+                                   null);
+}
+
+/**
+ * When the user toggles the layers.acceleration.disabled pref,
+ * sync its new value to the gfx.direct2d.disabled pref too.
+ */
+function updateHardwareAcceleration(aVal)
+{
+  if (AppConstants.platform == "win") {
+    document.getElementById("gfx.direct2d.disabled").value = aVal;
+  }
+}