Adding mapbox-gl branch

2015-03-16 18:50:27 +01:00
parent 7985f030fa
commit 57ee7f52fd
3109 changed files with 943365 additions and 0 deletions
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+// Copyright 2014 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview Utility methods to deal with CSS3 transforms programmatically.
+ */
+
+goog.provide('goog.style.transform');
+
+goog.require('goog.functions');
+goog.require('goog.math.Coordinate');
+goog.require('goog.math.Coordinate3');
+goog.require('goog.style');
+goog.require('goog.userAgent');
+goog.require('goog.userAgent.product.isVersion');
+
+
+/**
+ * Whether CSS3 transform translate() is supported. IE 9 supports 2D transforms
+ * and IE 10 supports 3D transforms. IE 8 supports neither.
+ * @return {boolean} Whether the current environment supports CSS3 transforms.
+ */
+goog.style.transform.isSupported = goog.functions.cacheReturnValue(function() {
+  return !goog.userAgent.IE || goog.userAgent.product.isVersion(9);
+});
+
+
+/**
+ * Whether CSS3 transform translate3d() is supported. If the current browser
+ * supports this transform strategy.
+ * @return {boolean} Whether the current environment supports CSS3 transforms.
+ */
+goog.style.transform.is3dSupported =
+    goog.functions.cacheReturnValue(function() {
+  return goog.userAgent.WEBKIT ||
+      (goog.userAgent.GECKO && goog.userAgent.product.isVersion(10)) ||
+      (goog.userAgent.IE && goog.userAgent.product.isVersion(10));
+});
+
+
+/**
+ * Returns the x,y translation component of any CSS transforms applied to the
+ * element, in pixels.
+ *
+ * @param {!Element} element The element to get the translation of.
+ * @return {!goog.math.Coordinate} The CSS translation of the element in px.
+ */
+goog.style.transform.getTranslation = function(element) {
+  var transform = goog.style.getComputedTransform(element);
+  var matrixConstructor = goog.style.transform.matrixConstructor_();
+  if (transform && matrixConstructor) {
+    var matrix = new matrixConstructor(transform);
+    if (matrix) {
+      return new goog.math.Coordinate(matrix.m41, matrix.m42);
+    }
+  }
+  return new goog.math.Coordinate(0, 0);
+};
+
+
+/**
+ * Translates an element's position using the CSS3 transform property.
+ * NOTE: This replaces all other transforms already defined on the element.
+ * @param {Element} element The element to translate.
+ * @param {number} x The horizontal translation.
+ * @param {number} y The vertical translation.
+ * @return {boolean} Whether the CSS translation was set.
+ */
+goog.style.transform.setTranslation = function(element, x, y) {
+  if (!goog.style.transform.isSupported()) {
+    return false;
+  }
+  // TODO(user): After http://crbug.com/324107 is fixed, it will be faster to
+  // use something like: translation = new CSSMatrix().translate(x, y, 0);
+  var translation = goog.style.transform.is3dSupported() ?
+      'translate3d(' + x + 'px,' + y + 'px,' + '0px)' :
+      'translate(' + x + 'px,' + y + 'px)';
+  goog.style.setStyle(element,
+      goog.style.transform.getTransformProperty_(), translation);
+  return true;
+};
+
+
+/**
+ * Returns the scale of the x, y and z dimensions of CSS transforms applied to
+ * the element.
+ *
+ * @param {!Element} element The element to get the scale of.
+ * @return {!goog.math.Coordinate3} The scale of the element.
+ */
+goog.style.transform.getScale = function(element) {
+  var transform = goog.style.getComputedTransform(element);
+  var matrixConstructor = goog.style.transform.matrixConstructor_();
+  if (transform && matrixConstructor) {
+    var matrix = new matrixConstructor(transform);
+    if (matrix) {
+      return new goog.math.Coordinate3(matrix.m11, matrix.m22, matrix.m33);
+    }
+  }
+  return new goog.math.Coordinate3(0, 0, 0);
+};
+
+
+/**
+ * Scales an element using the CSS3 transform property.
+ * NOTE: This replaces all other transforms already defined on the element.
+ * @param {!Element} element The element to scale.
+ * @param {number} x The horizontal scale.
+ * @param {number} y The vertical scale.
+ * @param {number} z The depth scale.
+ * @return {boolean} Whether the CSS scale was set.
+ */
+goog.style.transform.setScale = function(element, x, y, z) {
+  if (!goog.style.transform.isSupported()) {
+    return false;
+  }
+  var scale = goog.style.transform.is3dSupported() ?
+      'scale3d(' + x + ',' + y + ',' + z + ')' :
+      'scale(' + x + ',' + y + ')';
+  goog.style.setStyle(element,
+      goog.style.transform.getTransformProperty_(), scale);
+  return true;
+};
+
+
+/**
+ * A cached value of the transform property depending on whether the useragent
+ * is IE9.
+ * @return {string} The transform property depending on whether the useragent
+ *     is IE9.
+ * @private
+ */
+goog.style.transform.getTransformProperty_ =
+    goog.functions.cacheReturnValue(function() {
+  return goog.userAgent.IE && goog.userAgent.DOCUMENT_MODE == 9 ?
+      '-ms-transform' : 'transform';
+});
+
+
+/**
+ * Gets the constructor for a CSSMatrix object.
+ * @return {function(new:CSSMatrix, string)?} A constructor for a CSSMatrix
+ *     object (or null).
+ * @private
+ */
+goog.style.transform.matrixConstructor_ =
+    goog.functions.cacheReturnValue(function() {
+  if (goog.isDef(goog.global['WebKitCSSMatrix'])) {
+    return goog.global['WebKitCSSMatrix'];
+  }
+  if (goog.isDef(goog.global['MSCSSMatrix'])) {
+    return goog.global['MSCSSMatrix'];
+  }
+  if (goog.isDef(goog.global['CSSMatrix'])) {
+    return goog.global['CSSMatrix'];
+  }
+  return null;
+});