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https://github.com/ionic-team/ionic-framework.git
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118 lines
3.7 KiB
JavaScript
118 lines
3.7 KiB
JavaScript
// Copyright 2014 Google Inc. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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(function(scope) {
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function negateDimension(dimension) {
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var result = {};
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for (var k in dimension) {
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result[k] = -dimension[k];
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}
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return result;
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}
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function consumeOffset(string) {
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return scope.consumeToken(/^(left|center|right|top|bottom)\b/i, string) || scope.consumeLengthOrPercent(string);
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}
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var offsetMap = {
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left: {'%': 0},
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center: {'%': 50},
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right: {'%': 100},
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top: {'%': 0},
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bottom: {'%': 100},
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};
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function parseOrigin(slots, string) {
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var result = scope.consumeRepeated(consumeOffset, /^/, string);
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if (!result || result[1] != '') return;
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var tokens = result[0];
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tokens[0] = tokens[0] || 'center';
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tokens[1] = tokens[1] || 'center';
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if (slots == 3) {
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tokens[2] = tokens[2] || {px: 0};
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}
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if (tokens.length != slots) {
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return;
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}
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// Reorder so that the horizontal axis comes first.
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if (/top|bottom/.test(tokens[0]) || /left|right/.test(tokens[1])) {
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var tmp = tokens[0];
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tokens[0] = tokens[1];
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tokens[1] = tmp;
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}
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// Invalid if not horizontal then vertical.
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if (!/left|right|center|Object/.test(tokens[0]))
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return;
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if (!/top|bottom|center|Object/.test(tokens[1]))
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return;
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return tokens.map(function(position) {
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return typeof position == 'object' ? position : offsetMap[position];
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});
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}
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var mergeOffsetList = scope.mergeNestedRepeated.bind(null, scope.mergeDimensions, ' ');
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scope.addPropertiesHandler(parseOrigin.bind(null, 3), mergeOffsetList, ['transform-origin']);
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scope.addPropertiesHandler(parseOrigin.bind(null, 2), mergeOffsetList, ['perspective-origin']);
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function consumePosition(string) {
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var result = scope.consumeRepeated(consumeOffset, /^/, string);
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if (!result) {
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return;
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}
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var tokens = result[0];
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var out = [{'%': 50}, {'%': 50}];
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var pos = 0;
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var bottomOrRight = false;
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for (var i = 0; i < tokens.length; i++) {
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var token = tokens[i];
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if (typeof token == 'string') {
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bottomOrRight = /bottom|right/.test(token);
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pos = {left: 0, right: 0, center: pos, top: 1, bottom: 1}[token];
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out[pos] = offsetMap[token];
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if (token == 'center') {
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// Center doesn't accept a length offset.
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pos++;
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}
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} else {
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if (bottomOrRight) {
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// If bottom or right we need to subtract the length from 100%
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token = negateDimension(token);
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token['%'] = (token['%'] || 0) + 100;
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}
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out[pos] = token;
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pos++;
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bottomOrRight = false;
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}
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}
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return [out, result[1]];
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}
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function parsePositionList(string) {
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var result = scope.consumeRepeated(consumePosition, /^,/, string);
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if (result && result[1] == '') {
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return result[0];
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}
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}
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scope.consumePosition = consumePosition;
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scope.mergeOffsetList = mergeOffsetList;
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var mergePositionList = scope.mergeNestedRepeated.bind(null, mergeOffsetList, ', ');
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scope.addPropertiesHandler(parsePositionList, mergePositionList, ['background-position', 'object-position']);
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})(webAnimations1);
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